The metal briquetting machine directly cold presses various metal scraps through high pressure, which is convenient for storage, transportation and recycling. It is widely used in steel mills, recycling and processing industries, non-ferrous and ferrous metal smelting industries and renewable industries.

In order to improve the quality of use of the metal briquetting machine and prolong its service life, the daily maintenance and maintenance of the metal briquetting machine must be done. Here is a brief introduction to the specific operation process of maintenance and maintenance.

1. When disassembling the filler cap, filter cap, inspection hole, hydraulic tubing and other parts of the hydraulic oil tank of the metal briquetting machine, avoid dust when the system oil passage is exposed. The disassembled part must be thoroughly cleaned before opening. For example, when removing the hydraulic oil tank filler cap, first remove the dirt around the fuel tank cap, unscrew the fuel tank cap, and remove the debris remaining in the joint (not flush with water to prevent water from infiltrating the fuel tank), and then open the fuel tank cap after cleaning.

Briquetting Press

If you need to use a wiping material and a hammer, you should choose a wiping material that does not remove fiber impurities and a special hammer with rubber attached to the striking surface. Hydraulic components and hydraulic hoses should be carefully cleaned and assembled after drying with high-pressure air. Use a well-packed filter element (the inner packaging is damaged, although the filter element is intact, it may be unclean). Clean the filter at the same time when changing the oil. Before installing the filter element, use the wipe material to carefully clean the bottom dirt in the filter housing.

2. Pay attention to the sound of the hydraulic pump and the overflow valve during the operation of the metal briquetting machine. If the cavitation noise of the hydraulic pump can not be eliminated after exhausting, it should be used after finding the cause and troubleshooting. If an actuator moves slowly when there is no load, accompanied by the sound of overflow valve overflow, it should be shut down immediately for maintenance.

Ball press

3. Regular maintenance of the metal briquetting machine is required. Check the attachments on the filter screen. For example, excessive metal powder often indicates the wear of the oil pump or the pulling of the oil cylinder. For this, it is necessary to diagnose and take corresponding measures before starting the machine. If the filter screen is damaged or dirt accumulated, it should be replaced in time, and the oil should be changed at the same time if necessary.

In industrial production, metal briquetting presses are widely used because of their easy installation, stable operation, high degree of automation, low failure rate, and easy maintenance. Therefore, in daily operation, it is very important to do a good job in the maintenance and maintenance of the metal briquetting machine.

In processing and transportation, belt conveyors are usually used for short-distance transportation of goods or materials. Belt conveyor is a kind of machinery that transports materials in a continuous manner by friction drive. It has the advantages of strong conveying capacity, simple and easy maintenance, high speed and stability, and low noise. So, what is the installation process of the belt conveyor? Here is a brief explanation for everyone:

belt conveyor

1. Install the rack

The installation of the belt conveyor frame starts from the head frame, then installs the middle frame of each section in sequence, and finally installs the tail frame. Before installing the rack, the center line must be drawn over the entire length of the conveyor. Since keeping the center line of the conveyor in a straight line is an important condition for the normal operation of the conveyor belt, it is necessary to install each section of the rack. Align the center line, and at the same time set up a rack to level it. The allowable error of the rack to the center line should not exceed 0.1mm per meter of captain’s front and rear. However, the error of the center of the frame over the overall length of the conveyor shall not exceed 35mm. After all the single sections are installed and identified, the single sections can be connected.

2. Install the drive device

When installing the driving device, care must be taken to make the drive shaft of the belt conveyor perpendicular to the center line of the belt conveyor, so that the center of the width of the drive roller coincides with the center line of the conveyor, and the axis of the reducer is parallel to the drive axis. At the same time, all shafts and rollers should be leveled. The horizontal error of the shaft is allowed within the range of 0.5-1.5mm according to the width of the conveyor. While installing the drive device, you can install the tail wheel and other tensioning devices. The roller axis of the tensioning device should be perpendicular to the center line of the belt conveyor.

3. Install the roller

After the frame, transmission device and tensioning device are installed, the roller racks of the upper and lower rollers can be installed, so that the conveyor belt has a curved arc that changes slowly. The distance between the roller racks in the turning section is two times the distance between the normal roller racks. One-third to one-third. After the roller is installed, make its rotation flexible and brisk.

4. The final identification of the belt conveyor

In order to ensure that the conveyor belt always runs on the center line of the idler and drum, the following requirements must be met when installing the idler, frame and drum:

①All rollers must be lined up, parallel to each other, and kept horizontal.

②All the rollers are arranged in a row, parallel to each other.

③The supporting structure must be straight and horizontal. For this reason, after the installation of the drive roller and the supporting roller frame, the centerline and level of the conveyor should be finally aligned.

5. Fix the rack on the foundation or floor

After the belt conveyor is fixed, feeding and unloading devices can be installed.

6. Hang the conveyor belt

When hanging the conveyor belt, first spread the conveyor belt strips on the idler section of the idler section, enclose the driving roller, and then apply it on the idler section of the heavy-duty section. A 0.5-1.5 ton hand winch can be used for hanging the belt. When tightening the belt to connect, the roller of the tensioning device should be moved to the limit position, and the trolley and the spiral tensioning device should be pulled toward the transmission device; and the vertical picking device should move the roller to the top . Before tightening the conveyor belt, the reducer and motor should be installed, and the braking device should be installed on the inclined conveyor.

7. Idling test machine

In the idling test machine, pay attention to whether there is deviation phenomenon in the operation of the conveyor belt, the operating temperature of the driving part, the activity of the roller during operation, the degree of contact between the cleaning device and the guide plate and the surface of the conveyor belt, etc. Carry out necessary adjustments, and test the machine with load after all parts are normal. If a screw-type tensioning device is used, the tightness must be adjusted again when the test machine is operated under load.

The above is the specific description of the belt conveyor installation process, I hope it will be helpful to everyone. The belt conveyor is simple to operate and convenient to use. It is widely used in the assembly, testing, packaging and transportation of electronics, electrical appliances, machinery, printing, food, and objects. Luoyang Zhongyuan Mining Machine Manufacture Co., Ltd. specializes in the production and development of belt conveyors, which can be customized according to customer needs. Interested parties are welcome to come to consult.

Impact crusher, referred to as impact crusher, is commonly known as sand making machine. It is a kind of high-energy and low-consumption impact crusher with international advanced level. Its performance plays an irreplaceable role in various ore fine crushing equipment. It is used in construction, mining, metallurgical industries, highways, railways, bridges, hydropower, The core equipment in the field of mineral grinding and the machine-made sand industry. So, do you know what are the characteristics of impact crushers? Here is a brief introduction for everyone.

Performance characteristics


1. The impact crusher is a new type of medium and fine stone crushing equipment developed in the 1990s. It is also a model widely used in the world to replace cone crushers and roller crushers.

2. Novel and unique structure, balanced operation. Low energy consumption, high output and large crushing ratio.

3. The equipment is small in size, easy to operate, easy to install and maintain. It has a plastic function, the product is cubic, and the bulk density is large.

4. During the production process, the stone can form a protective bottom layer, the machine body is wear-free and durable. A small amount of wear parts are made of super hard and wear-resistant materials, which are small in size, light in weight and easy to replace parts.

2. Work characteristics

To put it simply, the impact crusher works with the principle of rock-on-rock. Let the stones collide with the stones accelerated and thrown out by the impeller in the natural falling process, so as to achieve the purpose of breaking. When the accelerated stones collide with the naturally falling stones, a vortex is formed, and the secondary crushing is carried out during the return process, so there is very little wear to the machine’s counterattack plate during operation. During the whole crushing process, the materials will impact and crush by themselves without direct contact with metal components, which prolongs the wear time of the machine and reduces pollution.

3. technical characteristics

1. High crushing efficiency, with fine crushing and coarse grinding functions; simple structure, convenient installation and maintenance, and low operating cost;

2. The ability to pass non-crushed materials is strong, and is less affected by the moisture content of the materials, which can reach 8%;

3. The product has excellent grain shape, cubic shape, and extremely low content of needle flakes. It is suitable for aggregate shaping, artificial sand making and high-grade highway aggregate production; it has high bulk density and minimal iron pollution.

4.structural characteristics


1. Feed hopper: The structure of the feed hopper is an inverted prism (or cylinder), and the feed port is equipped with a wear-resistant ring, and the incoming material from the feeding equipment enters the crusher through the feeding hopper.

2. Distributor: The distributor is installed in the upper part of the vortex crushing cavity. The function of the distributor is to divert the incoming material from the hopper, so that a part of the material directly enters the impeller through the central feed pipe and is gradually accelerated to a higher level. The speed is ejected, so that other parts of the material are bypassed from the outside of the central feed pipe into the outer side of the impeller in the vortex crushing chamber, and are impacted and crushed by the high-speed material ejected from the impeller, without increasing power consumption and increasing production capacity. Improve crushing efficiency.

3. Eddy crushing cavity: The structure of the vortex crushing cavity is an annular space composed of upper and lower cylinders. The impeller rotates at a high speed in the vortex crushing cavity. The vortex crushing cavity can also retain materials to form materials. For the lining, the material crushing process occurs in the vortex crushing cavity. The material lining separates the crushing effect from the vortex crushing cavity wall, so that the crushing effect is limited to the material, which plays the role of wear-resistant self-lining. The observation hole is to observe the wear condition of the wear block at the launch port of the impeller runner and the wear condition of the liner on the top of the vortex crushing chamber. The observation hole must be sealed tightly when the vertical impact crusher is working. The distributor is fixed on the upper cylindrical section of the vortex crushing cavity. The impeller rotates at a high speed to produce flow, which forms an internal self-circulation system through the distributor and the impeller in the vortex crushing cavity.

4. Impeller: The impeller structure is a hollow cylinder made of special materials. It is installed on the upper end of the main shaft assembly. It uses a conical sleeve and a key connection to transfer the button pitch and rotates at high speed. The impeller is the key element of the vertical impact crusher. The material enters the center of the impeller from the center inlet pipe of the splitter on the impeller. The cloth cone in the center of the impeller evenly distributes the material to the various emission channels of the impeller. At the exit of the emission channel, a wear-resistant block made of special materials is installed, which can be replaced. The impeller accelerates the material to a speed of 60-75m/s and ejects it, and impacts the material lining in the vortex crushing chamber for strong self-crushing. The upper and lower runner plates are installed between the cone cap and the wear block to protect The impeller is not worn.

5. Main shaft assembly: The main shaft assembly is installed on the base to transmit the power from the motor through the V-belt and support the impeller to rotate. The main shaft assembly is composed of a bearing seat, main shaft, bearing, etc.

6. Base: The vortex crushing chamber, main shaft assembly, motor, and transmission are all installed on the bottom seat. The base structure is shaped. The middle part is a quadrangular prism space. The center of the quadrangular prism space is used to install the main shaft assembly. Discharge channel.

7. Bracket: According to the different working places of the crusher-open-air operation or suffocation operation, you can consider configuring a bracket or not.

8. Transmission device: a belt drive mechanism driven by a single motor or dual motors (above 75KW, dual motor drive), dual motors drive two motors installed on both sides of the main shaft assembly, the two motor pulley belts and the main shaft pulley Side, balance the forces on both sides of the main shaft without generating additional torque.

9. Lubrication system: The special grade centralized lubrication of Mobil grease is adopted. The lubrication parts are the upper bearing and the lower bearing of the main shaft assembly. In order to facilitate the oil injection, the oil pipe is used to lead the machine to the outside of the machine for regular oil pumping.

Impact crushers are widely used in various metal and non-metal mines, cement, refractory materials, abrasives, glass raw materials, construction aggregates, machine-made sand, metallurgy and other industries. Through the introduction of this article, I believe everyone has a general understanding of the characteristics of impact crushers. Luoyang Zhongyuan Mining Machinery Manufacturing Co., Ltd. specializes in impact crushers, which are of high quality and low price, and can be customized according to customer needs. Interested parties are welcome to consult.

The coal briquettes formed by the briquette briquetting machine have high adhesion and good strength. If they want to meet the standard, they need to strictly follow the operation process. It is necessary to pay attention to the humidity of the material before production, and it needs to be dried after the pressurization is finished. The following is a detailed explanation of the production process of the briquette briquette machine, let’s understand it together.

1. Material handling

Before entering the briquette ball press, the materials should go through processes such as screening, crushing, humidifying, adding binder or additives, and mixing. After the pulverized coal material enters the compression mold of the forming equipment, the coal particles are in a natural distribution state. The force acting on the material is only gravity and the friction between the particles. These forces are small, and the contact area between the particles is also small. The system at this time is unstable and easily deformed under external force.

briquette making machine

2. External pressure

The external force begins to compress the unstable system, the particles begin to move, and the volume occupied by the material decreases. At this time, the consumed work is used to overcome the movement of the particles, the friction between the particles and the friction between the particles and the inner wall of the mold. The characteristics of this stage are that the pressure increases slowly, the material volume shrinks quickly, and the particles are densely packed. However, the particles are not deformed at this time. The pulverized coal can form a block with a certain shape, but the strength is very poor. -Touch and break.

3. Compression molding

The pressure increases rapidly until it increases enough to make the particles begin to deform, while the volume of the material decreases slowly. The decrease in the volume of the material at this stage is mainly due to the plastic or elastic deformation of the particles, but there is still relative movement between the particles. Therefore, the friction between the particles under high pressure has a great influence on the formation process. The function of Ding is to overcome the deformation of particles, the friction between the material and the inner wall of the pressure mold, and the exhaust of the air in the system. As the particles become denser with each other, the contact surface between the particles is greatly increased, and the stability of the system is close to that of natural lumps.

4. Exhaust air

Continue to increase the external force will cause the damage of the weak particles, and the larger the external force increases, the heavier the particles will break. At this time, the volume of the material is only slightly reduced, while the stability of the system is also reduced, and the mechanical strength of the block will decrease. The work consumed in this stage is used to overcome the damage of particles and exhaust the air in the system. In actual production of briquette, pressurization should be ended before this stage.

5. Stable rebound

After the external force is released, the volume of the compressed material block will slightly increase due to the rebound effect, and the contact area between the particles will decrease, and the stability of the system will also decrease. Therefore, the molding pressure should not be too large. The process should not be developed to the fourth stage above, because in the third stage above, the rebound force is less than the mechanical strength of the block, and the block can still maintain good stability after the external force is released. If the molding pressure is too high and the particles are crushed too much, the cohesion of the block will be greatly reduced. When the rebound force increases to the mechanical strength of the block, cracks will appear after the mold is demolded, or even expand and break. crack.

The above is an introduction to the five stages of briquette briquetting machine molding. In the production process, attention should also be paid to the raw material moisture, binder ratio, briquetting strength and porosity, so that the quality of the finished product will be good.

Modern industrial production pays attention to how to increase output while saving raw materials. Different industries have different efforts in making full use of raw materials. For coal mine-related industries, briquetting machines are essential to save raw materials and waste. Recycling equipment.

At present, briquetting machine manufacturers basically have multiple types of equipment for customers to choose from. Different types of briquetting machines have different production capacities. Some customers will choose to buy larger models of briquetting machines in order to more efficiently increase the output of briquetting machines. However, it is still impossible to effectively increase the output of briquetting machine, how to increase the output of briquetting machine has become the primary problem of many business operators.

How to increase the output of briquetting machine

Mineral powder ball machine

1. Guarantee equipment performance

No matter how high-capacity briquetting machine, if the quality does not meet the standard, the frequent failures in operation, then its production capacity must be unsatisfactory, but also affect the overall production volume and production quality, causing losses to the enterprise. Therefore, the purchase of briquetting machine should be made by a regular large brand manufacturer, and at the same time, check and maintain it before using it, and follow the standard operation.

2. Production line equipment capacity matching

A high-capacity briquetting machine cannot complete large-scale production, so companies will build a ball press production line, and the production line is composed of many equipment. In addition to the briquetting machine, there are also crushers, conveyors, dryers, etc. The production capacity of other production line equipment must match the production capacity of the ball press machine, so as not to cause waste of equipment resources.

double-roller press

3. The operation and connection of production links should be smooth

As we all know, the production line is a complete whole. Any equipment and personnel in it are an integral part of this whole. Any problem in the link will affect the output of this production line and even the safety of employees. Therefore, in the production process, you must ensure that each The performance and safety of the production line equipment, and at the same time to ensure fluency in each link, the results produced by each link must correspond to the beginning of the next link, so as to improve production efficiency.

4. Increase the speed of the roller of the briquetting machine

The rotation speed of the counter-roller of the briquetting machine determines the speed of material forming, but the corresponding pressure should be given in place, otherwise it will affect the quality of the molding. This can only be done in the case of quality.

When choosing a briquetting machine, enterprise operators should purchase the corresponding models according to their own production conditions. Pursuing the capacity of the briquetting machine is undesirable, that is, the production efficiency of the briquetting machine cannot be improved, and a lot of money is wasted.

With the continuous progress of the industrialization model, the early high pollution and high energy consumption economic model has been unable to meet the requirements of industrial development and residents’ quality of life. Enterprise manufacturers have established their own environmental protection and energy-saving production lines with briquetting machines as the core plus coarse crushers, fine crushers, screening machines, conveyors and other equipment.

This production line can compress many industrial wastes, dust, etc. into pellets, and prompt enterprises to reprocess and reuse them. While effectively reducing the company’s production costs, it also plays a role in environmental protection. Briquetting machine is widely used in metallurgy, coal thermal power plants and other industries.

Briquetting machine industry application

Super High-Pressure Briquetting Machine

1. Metallurgical industry

The metallurgical industry can be described as an industry in which a briquetting machine is in great demand. The re-smelting of many waste materials requires the help of a briquetting machine. For example: sludge, scale, dust ash, iron powder, raw ore powder, manganese ore powder, silicon-manganese alloy powder waste.

2. Coal industry

The coal industry is also a hard-hit area for waste accumulation. A briquetting machine is required for the pelletizing and briquetting of various types of coal powder, coke powder, peat, etc.

3. Thermal power plant

Thermal power plants will produce desulfurized gypsum in their daily work, and desulfurized gypsum is an important material for cement production. Solid-heat power plants can use a briquetting machine to make the desulfurized gypsum into balls and then use it for cement production.

4. Refractory material industry; building material industry lime factory, ceramic factory; chemical fertilizer industry

List these industries together. Very simple, because they all need the help of the briquetting machine, because these industries require a lot of lump coal in the daily production process. The direct purchase of shaped lump coal directly affects the production cost due to the excessive demand. The emergence of briquetting machines can enable these industries to directly purchase low-cost coal powder, and use briquetting machines to replace briquette coal, which can significantly save costs over time.

5. Other industries

Of course, the energy-saving and environmentally friendly artifact of the briquetting machine is definitely more than the above. In the daily production, all industries that need to be smelted in the furnace and all need to make powdered materials into balls are good places for the briquetting machine to show its talents.

Briquetting machine classification

Briquette machines

1. Dust ash briquetting machine

The main function of the dust ash briquetting machine is that, in the production process of iron and steel enterprises, a large amount of dust ash, iron scale and other wastes will be produced. The problem of declining performance index, the work of pressing dusty dust and other powdery materials into balls.

2. Coke powder briquetting machine

Coke powder briquetting machine is a kind of ball making equipment capable of forcing various dry and wet powder materials into the roller pressing area through a pre-pressing device to form a higher bulk density. It is suitable for industrial gas making, boiler type, cold pressing type focus, The forming operation of ignition briquette, civil briquette and other materials.

3. Briquette briquetting machine

Briquette briquetting machine belongs to medium and high pressure forming equipment. The molding process of the whole machine is divided into cold compression molding and hot compression molding. In addition, a binder can be added to the material that does not have spheroidizing properties in the process of cold-pressing and forming into balls.

4. Mineral powder briquetting machine

The ore powder briquetting machine is a pair of roller forming equipment, which uses the method of roller forming to suppress materials. It is a key equipment in the complete set of pelletizing technology.

5. Lignite briquetting machine

Because of its low calorific value, high water content, easy weathering and crushing, and easy spontaneous combustion, lignite has caused many difficulties in its combustion or liquefaction as a raw material, dry distillation gasification, and transportation and storage. Lignite briquetting machine tenderizes lignite into pellets with a certain particle size and density, which belongs to the category of high-pressure briquetting machine.

6. Iron powder briquetting machine

The iron powder briquetting machine can directly press the iron powder into balls, and then directly send it into the blast furnace for smelting. A large amount of energy consumed in the heating process of traditional blast furnace smelting and a large amount of pollution to the environment are avoided.

7. Steel slag briquetting machine

Steel slag briquetting machine also belongs to the category of high-pressure briquetting machine. Its high pressure can press high hardness steel slag, steel shavings, iron filings, control volumetric weight, waste recycling, improve use effect and create benefits.

8. Quicklime briquetting machine

Quicklime, also known as calcium oxide, is a common desiccant that uses chemical absorption to remove water vapor. It is also used in the dehydration of steel, pesticides, medicine, desiccants, leather, and alcohol. Quicklime briquetting machine is a kind of high-pressure molding equipment that directly crushes raw materials and produces them on the machine without adding water.

9. Coal powder briquetting machine

Pulverized coal briquetting machine is mainly used for high pressure briquetting machine for pressing various powder materials such as coal powder, coal surface, coke powder, coking coal, coke powder, coke and metallurgical powder cold pressed pellets.

Classification of supporting equipment for briquetting machine

briquette making machine

1. Crusher

There are two types of crushers that are usually matched with briquetting machines, which are ordinary coarse crushers and fine crushers improved with reference to coarse crushers. As its name implies, its role is to crush large pieces of material to meet the requirements of the next operation. In the beneficiation plant, it plays the role of separating the useful minerals into monomers.

2. Screening machine

The process of dividing broken materials into different particle levels through one or several layers of sieve surface is called sieving. The screening machine is to use the relative movement of the bulk material and the screen surface to make some particles pass through the screen hole, and divide the sand, gravel, crushed stone and other materials into different levels of vibration screening mechanical equipment according to the particle size.

3. Conveyor

A piece of equipment as its name implies, conveyors are very common in modern industrial production, any industrial production is inseparable from the conveying process. The prototype is an ancient high-drum car and a water-carrying dump truck, which can be said to have a long history.

4. Hoist

The functions of the hoist and the conveyor are slightly similar, they all play a role in transportation, but the hoist is a large equipment that is transported by changing the potential energy.

5. Mixer

Very common equipment, mainly used for mixing cement, sand, and various types of dry powder mortar. It is also part of the briquetting machine production line.

6. Dryer

The dryer is generally divided into civil and industrial. The general industrial dryer is also called a dryer. It is a device that uses heat energy to reduce the moisture of the material and dry the material.

The above is the introduction about briquetting machine. The briquetting machine production line mainly plays a role in energy saving and environmental protection, and conforms to the cyclic development route. I believe that it will definitely become the core force in industrial production in the future. To customize the briquetting machine, you need to first find a professional design institute to design, according to the size of the project to determine the type of equipment and specifications required, as well as the plant, hydropower, civil engineering, etc., and make a preliminary budget. Once you have a budget, you can choose the appropriate model and configuration based on these conditions.

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Horizontal power mixer is composed of frame, cylinder, main shaft, mixing tools, fin plate, composite wear-resistant liner, transmission device and control system. Inspection holes are provided on both sides to facilitate the operator to inspect and maintain the mixing tool.

The main mixing objects of the horizontal powerful mixer: the mixing of various solid materials and powders, and the high-precision mixing of these materials after adding the binder. It has the remarkable points of stable operation, sturdiness and durability, high mixing precision, stable mixing fruit, continuous operation and no impact on the environment around the mixing equipment.

Advantages of horizontal powerful mixer

horizontal strong continuous crusher

1. Continuous feeding and discharging, efficient mixing

The horizontal powerful mixer adopts a single-axis multi-cavity design, the teeth are arranged in different geometric shapes, and the materials are placed in the front and rear movable curtains of the mixer body to realize the cross between the materials. mixing. This horizontal powerful mixer is particularly suitable for mixing powders and powders, as well as powders and a small amount of liquid (binder), or large specific gravity materials.

2. Stable operation of horizontal powerful mixer

The horizontal powerful mixer has a horizontal structure. When the mixed material enters the mixer through a belt, a rubber gasket is installed in the mixing barrel to prevent adhesion. The mixing tool is made of high wear-resistant steel and welding wear-resistant electrode, and the horizontal strong mixer has a long service life. Reasonable design, stable work and convenient maintenance.

3. Strong sealing, little impact on the environment

The horizontal powerful mixer is a horizontal closed cylinder structure, the inlet and outlet are easy to connect with the dust removal device, and the mixing area has a small environment.

Working principle of horizontal powerful mixer

The horizontal powerful mixer is composed of a frame, a cylinder, a mixing tool, etc., a transmission system and a control system. Among them, the transmission system is composed of a hydraulic coupling, a triangle belt, a torque sensor, an explosion-proof motor, and a hydraulic motor.

During the work, the mixing tool arranged in the middle of the equipment and 13 or 26 mixing rake teeth in different directions on the mixing tool will enter the material of the mixing equipment according to the form of convection, and the material will be strongly sprinkled, sheared, spattered, Exchange, etc., so that the materials are fully mixed in the barrel of the mixer and moved to the discharge end of the mixing device. In this way of mixing, the materials to be mixed are not easy to agglomerate or agglomerate in the mixing equipment.

In the process of mechanical mixing of materials, there are the following five ways:

(1) Shear mixing forms shear surfaces with each other in the materials, so that the mixing of materials takes place.

(2) Convective mixing of many agglomerated material particles moves from one place of the mixer to another for relative flow.

(3) The particles of the diffusion mixed mixture move in a single particle as a unit, similar to the molecular diffusion process in gas and liquid. It is an irregular movement, especially when the particulate material (dust) is in vibration or fluidized state, the diffusion effect is extremely obvious.

(4) Impact mixing causes the particles of a single material to disperse under the impact of the material and the wall shell.

(5) The particles of the crushed mixture are deformed and crushed.

Five mixing methods exist simultaneously in each mixing process, but the main three are the first.

Taking the batch mixer as an example, the mixing process can be divided into three stages. First, the particles penetrate and slide from one part of the material to another part in a mass, and convective mixing occurs. Secondly, the particles of different ingredients are gradually dispersed across the newly formed interface for diffusion mixing. Finally, under the effect of self-weight and centrifugal force, particles with similar shapes, sizes and densities will accumulate in different parts of the mixer, called particle aggregation.

The first two effects are helpful for mixing, while the latter is a separation effect that prevents the particles from being evenly distributed. These three phases occur simultaneously in the mixer, but in different mixing time, the degree of effect is different.

The ball press is an important molding equipment for many materials. As one of the core components of the ball press, the quality of the roller skin of the ball press seriously affects the production efficiency and quality of the ball press. It also affects the pressure of the ball press. Service life, frequent replacement of roller skins will certainly cause disassembly and wear of the ball press. Since the roller skin is so important, it is necessary to ensure its overall quality during processing and production. The staff of the roller skin manufacturer has organized the production process of the roller skin of the ball press for your reference.

There are two methods for manufacturing the roller skin of the ball press machine, one is through casting and the other is forging.

Briquetting machine spare parts

1. Roller skin of casting and pressing ball machine

The roll skin processed by casting is the common 65 manganese spring steel roll skin. The main production method is to smelt steel, cast it in the roll skin mold, and remove it for cooling after cooling to make the surface size, inner diameter and ball and socket size meet the requirements , And then heat treatment to make the hardness of the roller skin meet the requirements.

The roll skin made of 65 manganese spring steel due to the characteristics of the material itself will cause hardening during turning, so it is necessary to complete the feed once during turning, otherwise the heat generated between the tool and the roll skin during turning It will cause a hardened layer. Once the cutter contacts, it is easy to cause the cutter head to crack and damage the surface of the roller skin; after turning the casting type roller skin, pay attention to the heat treatment, use oil quenching during quenching, and use warm water during tempering Quick cooling to avoid the second type of temper brittleness.

roller assembly

2. Roller skin of forging and pressing ball machine

There are two main types of forged roller skins, one is 9 chromium 2 molybdenum alloy steel and the other is bearing steel. The main difference between the production of this type of roller skins and the casting roller skins is that the casting roller skins are directly cast by casting molds, which cannot be welded due to the material characteristics, while the forged roller skins can be processed by welding. The part of the roller skin is welded as a whole, and then heat treatment process.

The forged processing roller skin is stronger than the casting roller skin, and the wear resistance is also higher than the casting roller skin. It has a wider application range, lower machining requirements, multiple feeds, and the ball socket can be engraved and worn according to actual needs. The post-repairability is better; the bearing steel in the forged roller skin is a material with better use characteristics than 9Cr2Mo, hardness and wear resistance on the market today, and it is very suitable for the compression molding of many hard materials.

roller shell

It can be seen from the above that in the production of the roller skin of the ball press, turning and heat treatment are two processes that have a great influence on the quality of the roller skin. For the casting roller skin, it is very difficult to turn the roller skin with a large diameter. At the same time, it also needs to achieve one-shot shaping, which is a test of the technical level of the lathe, and it must ensure the use of media and temperature control during heat treatment. Therefore, the roller skins of this type of ball pressing machine on the market are used on smaller ball pressing machines, and The hardness is not high enough, and the suppression of mineral powder materials cannot be used.

The ball presses produced by Luoyang Zhongyuan Mining Machine Manufacture Co., Ltd. all use bearing steel forged roller skins, which are suitable for welding in the same way as 9 chromium 2 molybdenum, easy to repair, and the machining process can be fed multiple times, and the machining accuracy It can be guaranteed, but it is more wear-resistant than 9 chromium 2 molybdenum roller skins and has a longer service life, which can reduce the amount of roller skin replacement.

In industries such as metallurgy, mining and refractory, in order to mix and humidify loose materials, various mixing devices are often used. Among them, the double-shaft mixer is favored by various industries because of its high degree of automation and continuous mixing. These advantages are inseparable from the structure of the dual-shaft mixer. Let’s take a look at the structure of the dual-shaft mixer.

1. Transmission device

The motor is decelerated by V-belt drive and planetary reducer, from high speed to low speed, and the power is transmitted to the mixing spindle through the spline shaft and spline shaft sleeve; at the same time, the synchronous drive shaft is connected between the two reducers to ensure the two mixing spindles Synchronize. The advantages of this system are: smooth transmission, large transmission torque, and high cost performance.

double-shaft mixer

2. Shaft end seal

The shaft end seal is composed of a bearing seat, a bearing, and a lubricating oil path to support and position the agitating shaft. At the same time, the high-pressure lubricating oil path lubricates, dissipates, and seals the support base and the agitating shaft head to form a sealed oil chamber To ensure that the mud does not erode the bearing seat and the mixing shaft.

3. Centralized lubrication device

The lubrication device of the mixer is one of the core components of the mixer, and its action directly affects the working efficiency and service life of the mixer. The lubrication system is composed of electric lubrication pumps and oil pipes. The grease is pressurized by an electric pump and reaches the four shaft ends of the mixer. The pressure grease forms a high-pressure protective layer on the shaft end to prevent mud from invading the shaft end, thereby protecting the shaft end of the bearing and the stirring shaft.

Automatic lubrication points: 4 (shaft end seal);

Manual lubrication points: 10 (4 spindle bearings, 2 discharge door bearings, 4 shaft end seals);

Lubrication system: A centralized lubrication system is used. There are four pumps to seal the four shaft ends.

4. Cylinder block and liner group

The mixing cylinder is a w-shaped double barrel bent from a wide and thick steel plate. It has a strong yield force under the support of a specially designed and manufactured frame. The supporting part can also make the cylinder rigid enough to ensure a double bedroom. The parallelism of the axis and the concentricity of the single axis. Each side is equipped with a maintenance platform, which can be retracted and supported according to needs, which is convenient for operation and maintenance. In order to prevent the abrasion of the mixing cylinder, a high-hardness high-chromium wear-resistant lining plate is installed inside and on the side of the mixing cylinder. The lining plate is fixed on the cylinder block with bolts. Liner blades: high chromium wear-resistant cast iron. Lifespan is up to 70,000 cans.

5. Stirring device

The mixing device is composed of a main shaft, a mixing arm, a blade, a scraper, etc. The two mutually parallel main shafts of the mixing device are each equipped with 7 mixing arms, and the two adjacent main mixing arms on the same main shaft are distributed at 60 °. The relative angle relationship is fixed, and this fixed relationship is guaranteed by the coupling between the two reducers (in view of this, do not easily disassemble the coupling). Each agitator arm is designed according to hydrodynamics to make it stronger and reduce the resistance during agitation, as well as reduce the amount of wear.

6. Discharge door

It is composed of the main body of discharge door, cylinder and proximity switch. During automatic operation, three states of fully open, fully closed, and half open are generally set. During operation, high-pressure gas is passed to the cylinder, and the cylinder drives the swing lever to rotate the door body around the bearing seat to achieve the purpose of opening and closing the door.

7. Upper cover and water distribution pipe device

Two access doors are installed on the upper cover for use during inspection. A safety switch is installed at the maintenance door. When the maintenance door is opened, the mixer stops working. So as to ensure that the maintenance personnel can maintain the safety inside the cylinder. An observation window is opened on a maintenance door for the staff to observe while the mixer is working. The water pipe is arranged reasonably so that the water can be evenly distributed in the cylinder. More importantly, its conical spiral nozzle can effectively prevent clogging.

The above is the structural knowledge about the twin shaft mixer. It can be seen that this equipment is very excellent and efficient from design to production, which can meet the mixing needs of various related industries.

The briquetting machine has an irreplaceable role in major mining and industrial production. Its main function is to press and process powdered materials into larger pellets, thereby making the materials more convenient for subsequent use, more convenient transportation, and also Can reduce the transportation loss of materials.

On the briquetting machine, the component of compacting the powdered material is the briquetting machine roller skin. There are many ball sockets of the same size, same shape and regular arrangement on the roller skin. The processing of machine roller ball socket is also a very important work in the design and production process of briquetting machine.

Design Principles of Roller Ball Spherical Socket of Briquetting Machine

The design of the roller ball socket of the briquetting machine is to be prepared before the production of the briquetting machine. The three elements of the roller skin material, ball socket size and ball socket shape should be mainly considered.

1. The material of the roller skin directly affects the service life and processing difficulty of the ball socket. There are three commonly used materials for the roller skin of the briquetting machine. The processing methods are divided into forged roller skin and casting roller skin. Not high enough, so the material pressed by the ball press should be fully considered in the design, and the roller skin with appropriate hardness should be selected.

2. The size design of the ball socket can not be too small or too large, mainly refers to the depth of the ball socket, too small will cause the pressure of the ball press to reach, it is not easy to demold, and the carving of the small ball socket is difficult. The effect of the ball is not ideal; if the size of the ball socket is too large, the strength of the ball will not meet the requirements, thereby reducing the pass rate of the product.

3. The shape of the ball socket is various, but the characteristics of the material should also be fully considered in the design. For example, the dry powder briquetting machine should choose a flat square ball socket. With the corresponding smaller size of the socket, the ball formation rate can be fully improved.

Roller ball socket processing of briquetting machine

Briquette machines

1. Ball socket processing flow

The first thing to do in the processing of the roller ball socket of the briquetting machine is to determine the material of the roller skin, and then cast or forge according to different materials:

(1) The ball and socket of the casting roller skin should have a certain size and shape during casting, and then the roller skin is clamped on the lathe, and the tool is fed with a tool for lathe machining, and the surface size of the roller skin and the ball socket are The dimensions are processed simultaneously.

(2) For the ball and socket processing of forged roller skins, it is necessary to weld the roller skins of each section as a whole, and then perform surface dimension processing on the lathe. After the surface processing of the roller skins is completed, the ball and socket are carved on the milling machine.

briquette making machine

2. Matters needing attention in ball and socket processing

(1) When processing the ball-and-socket of casting-type roller skins, the casting-type roller-skin will harden during turning, so if it is processed again, it will collapse the cutter head and damage the surface of the roller skin; When the heat treatment is completed, oil quenching should be used, and quick cooling and tempering with warm water.

(2) For ball-socket processing of forged roller skins, pay attention to the use of multiple feeds when engraving on the milling machine. Although the depth of the ball-socket is not large, it is also necessary to avoid directly plunging the milling cutter into the roller skin, otherwise it will easily collapse A bad knife head pierces the surface of the roller skin and affects subsequent engraving work.

The processing conditions of the roller ball socket of the briquetting machine should fully consider the application conditions of the ball pressing machine, especially for materials of different hardness, the roller skins of different hardness and wear resistance should be used, so several factors in the design should be considered.

The briquetting machines produced by Luoyang Zhongyuan Mining Machinery Manufacturing Co., Ltd. all use bearing steel forged roller skins. The ball socket is easy to process and has a long service life. It is also very convenient to repair later. If you have any questions, you can leave a message on our website or call customer service phone for detailed consultation.

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