Analysis about Classification of Perlite Raymond Mill

The perlite raymond mill is a kind of new generation of effective grinding equipment produced by Henan Hongxing Mining Machinery according to the characteristics of the perlite, the information feedback of the specific usage of the users and the actual use of the users. The typical use of the perlite raymond mill lies that it is suitable for the current artificial mechanism powder industry, which is the alternative product of the rod mill-type grinder, impact Raymond mill and the straight-through Raymond mill. The perlite Raymond mill has the advantages of small discharging particle size, uniform grain type, large production capacity. The hammerhead has long service life and the supporting power is small. This kind of perlite Raymond mill changes the tertiary crushing into secondary crushing. The process is simplified. The structure is simple. The maintenance is easy and the operation is smooth. The equipment investment is 35% to 50%lower than the same-scale traditional process equipment. The output efficiency is 35% to 50%higher than the same-scale traditional process equipment. The long-running maintenance cost is 35% to 50% lower than the same-scale traditional process equipment. It is widely used in the mechanism powder production line, cement, refractories, metallurgy and other industries.
The perlite Raymond mill is made of wear-resistant materials with high cautery and high iron, which can meet the materials requirements of the for projects, such as roads, railways, bridges, tunnels, highways, high-speed railway. It is the ideal equipment for the aggregate concrete mixing in the construction of the high speed railway and other industries. The perlite Raymond mill is widely used in many industries. The perfect equipment sales team can provide customers with the protection of the system. The casting stone has high resistance, chemical corrosion and acid resistance. The perlite Raymond mill is widely used in chemical industry, metallurgy, electric power, coal, building materials, textile and light industrial sectors. In the mining field, the perlite Raymond mill is widely used in the grinding anterior process and it can produce a lot of powder grinding and reduce the high cost of grinding load. Henan Hongxing Mining Machinery has very rich experience in terms of the production of the grinding machine, such as the raymond mill, ball mill. We strive to provide the products with the highest quality for every customer.
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Hardware of PLC Control System of Lime Rotary Kiln

The environment of the production line field of the active lime rotary kiln is harsh. The system is easily affected by many factors, such as the high temperature, dust, vibration, electromagnetic interference and other factors. At the same time, the control system is complex and huge. In terms of the previous Relay control mode, a large number of the relays are connected through the hardwire. The wiring aging, sealing-off, contact arc, hard contact, stuckness and other phenomena are common. Once the faults happen, the error correction is very difficult. If there are some changes of the process, the hardware structure of the control system will have great changes. The system may be even redesigned. Therefore, in the renovation project, the PLC which is used for the system design has its unique advantages compared with the relay control.
First, the reliability is high and the anti-interference ability is strong. The PLC is professionally designed to adapt to the harsh industrial environments, which can work stably and reliably in the poor working environment. It can minimize the failure rate. In order to meet the above requirement, the PCL of the active lime rotary kiln takes the following favorable measures. PLC uses the microelectronic technology. A large number of switching operations is completed by the whole circuit, therefore, there will be no wiring aging, desoldering, poor contact problems.
Second, in terms of the hardware of the PLC, the shielding, filtering, isolation and other measures have been used in the design to prevent all kinds of interference.
Third, the PLC system software includes the fault detection and diagnosis procedures. When a fault occurs, the running state will be immediately saved and the memory will be closed to wait for troubleshooting.
Forth, the PLC has a WET watchdog monitor. If the procedure has infinite loop or runs more than the time provisioned by WET, PCL will give an alarm immediately and terminate the program execution. The performance of the active lime rotary kiln is perfect and the common use is very flexible. The PCL not only has the logical operations, conditional control, timing function and other control functions, but also can complete the AID conversion, DlA conversion, data processing and network communication. Therefore, it can control the switching value.
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Hongxing Jaw Crushers Go towards Technical Pinnacle

Recently, the professional R & D manufacturer of the mining crushing screening equipment, Henan Hongxing Machinery Co., Ltd., said that the company would set up the research and development center base of the crusher within the next two years. Henan Hongxing Mining Machinery will continue to be committed to the application study of the crushing and screening equipment theory, such as the domestic crusher, sand making machine, mobile crushing station and other crushing and screening equipments. At the same time, Henan Hongxing Mining Machinery will widely converge the domestic high-tech talents and use the world-class R & D means to enhance the core competitiveness of the products of the jaw crusher in this company.
China jaw crusher market has become the focus of attention of the international equipment manufacturers. The replacement of the jaw crusher machinery is relatively fast. Especially the service life of the small scale jaw crusher is only three to five years. The annual replacement of the domestic jaw crusher accounts 20% of the total demand of the jaw crusher, which provides a strong impetus for the rapid development of the jaw crusher machinery.
Under low-carbon economy, the jaw crusher in the crushing industry still faces the problems of high energy consumption and large pollution. How to improve the jaw crusher in order to meet the needs of economic development? The professional R & D manufacturer Henan Hongxing Mining Machinery Co. carefully analyzes the market issues and vigorously develops the innovation of the jaw crusher. The energy-saving and environment-friendly jaw crusher has become the main object for the research of the enterprise. A variety of crushing equipments researched and developed by Henan Hongxing Mining Machinery have already invested in the market. The energy-saving impact jaw crusher and the roller jaw crusher equipment industry are highly evaluated.
In the next three to five years, Henan Hongxing Mining Machinery will form a large R & D team of the jaw crusher to achieve a qualitative leap in terms of the independent innovation and energy saving development. In addition, Henan Hongxing Mining Machinery will also build a first-class R & D center. The technology development of the jaw crusher is a long-term work which needs to be closely integrated with the market. The conversion process from the scientific research achievements to the productivity requires a longer process. We must not only propose the recent goal and long-term goal, but also have good R & D leaders. In this way, we can really play the role of the R & D center. We should improve the added value of the products and establish the corporate brand. 
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Belt Conveyor Plays Important Role in Mining Machinery

The belt conveyor is another name of rubber belt conveyor, which is also called ribbon conveyor. It is a kind of tool with continuous transport. The most obvious feature is that the belt conveyor can form a continuous material flow, and it is easy to dig to take some powdered or granular materials.
Compared with the foreign belt conveyor industry, the belt conveyor industry in China started relatively late. However, led by the basic industries, such as metallurgy, mining, coal, transportation, energy, building materials, the belt conveyor industry develops rapidly in China. In recent years, the domestic belt conveyor production is growing year by year. The average growth rate of the gross industrial output value during the "Eleventh Five-Year" period was 12% and the gross industrial output value reached 28.6 billion yuan in 2010.
The high-end products transportation machinery industry is long dominated by Europe and the United States and other countries. With the continuous development of a number of developing countries in terms of the international economy, the industrial inputs increase. The demand for transportation machinery products increase every day. However, since the technical level is backward and the economic level is low, the demand for economical and practical transportation machinery products is great, which promotes the export growth of the domestic transportation machinery. According to the China Heavy Machinery Industry Association, China's exports of material handling equipment maintain rapid growth and the compound annual growth rate can be up to 12%.
The boom of the transportation machinery industry is highly correlated with the investment on fixed assets. If the fixed-asset investment maintains a high level, it can pull a surge in demand in the industry. China Heavy Machinery Industry Association disclosed the scale of production and sales in China Heavy Machinery would increase 16% every year. China's heavy machinery industry production and sales scale or will grow by 2.1 times.
The belt conveyor is the ideal efficient continuous transport equipment for the mine. Compared with other transport equipments (such as locomotive class), it has the advantages of long distance transport, large volume, continuous conveyor, and reliable operation. It is easy to achieve automation and centralization control. Especially for the high-yield and efficient mine, the belt conveyor has become the key equipment of coal mining mechatronics technology and equipment.
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Introduction to Dry System of Metallurgy Rotary Kiln

The main reactions of the raw materials in the rotary kiln include the decomposition reaction, the exothermic reaction and the sintering reaction. Therefore, according to the space occupied by different chemical reactions in the kiln, the rotary kiln can be divided into the decomposition zone, the exothermic reaction zone and the firing zone.
In the decomposition reaction, when the temperature rises to above 900 ℃, the calcium carbonate will substantially decompose into the calcium oxide and carbon dioxide. In the exothermic reaction, after raw materials complete the decomposition, they advance along the rotary kiln. Since the kiln gas is heated up and the exothermic reaction occurs, the temperature of the materials rise sharply so that there is large temperature difference between the materials and the previous decomposition zone. Viewed from the kiln head, the boundary of the "shadow" can be observed. In addition, you can determine the rate of the decomposition of calcium carbonate in the rotary kiln to determine and predict the temperature of the kiln. In the firing reaction, when the materials proceed to the high temperature zone which is over 1300 ° C with the rotation of the rotary kiln, the mineral in the material dissolves into the liquid phase. According to the production experience, the general conditions to control firing reaction in the rotary kiln are the followings. The temperature should be between 1350 ℃ and 1450 ℃. The amount of liquid phase is generally controlled at 20% to 30%, and the reaction time is generally 10mins to 15mins.
In the new dry cement production process, the staffs usually centralized control and adjust the various process parameters of the rotary kiln system by monitoring computer in the central control room. The intelligent adjustment and monitoring can be achieved through the adjustment of the main parameters according to the process rule to meet the production requirements. The main control parameters of the system are the followings. The first is the amount of raw material into the kiln: The amount of raw material into the rotary kiln determines the production of cement kiln. The amount of raw material into the kiln generally is required to be stable at the capacity indicators of the cement rotary kiln. The second is the speed of the rotary kiln. The speed of the cement kiln has a direct impact on the transit time of the materials in the rotary kiln and it has an indirect impact on the   clinker production and firing quality of the rotary kiln. The third is the air volume of the cooler. The air volume of the cooler can rapidly cool the clinker to improve the performance of clinker to achieve the purpose of energy saving.
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Control Flow of the Ore Sand Making Machine

The ore is sent to the first sieve by the electromechanical feeder. The ore whose diameter is more than 25mm is sent to the sand making machine for sand making. Then the ore is sent to the second sieve. The ore whose diameter is more than 25mm ore will be sent to the sand making machine by the transmission belt. Since the changes of the size and hardness of the ore is very large, the given value of the electromechanical feeder must be low when there are large ores with high hardness. Otherwise, the sand making machine will automatically shut down due to overload. When the ore is small and fragile, the working efficiency of the sand making machine will be very low if the given value of the electromechanical feeder is not promptly increased.
In order to maintain a high and stable power output of the sand making machine, the feed speed must be appropriately controlled to compensate for the fire circumference change of the volume and the hardness of the ore. The original sand making machine is controlled by a PI controller. The fact has proved that the controller can not avoid the substantially change of the power output of sand making machine, which often cause automatic shutdown even equipment accidents. In order to avoid automatic overload shutdown, the given value must be lowered, which in turn will affect the economic efficiency. The experts of Henan Hongxing Mining Machinery use the self-tuning control scheme for minimum variance of the output power of sand making machine. In order to track the changes of volume and hardness of the ore in a timely manner, the experts estimate the system parameters by using recursive least squares parameter estimation algorithm with the forgetting factor. Then the estimated value is regarded as the true value of the system parameters to design the minimum variance self-tuning control law.
The theoretical studies for sand making have has more than a hundred years of history so far. Many scholars have raised some of the brilliant and extremely valuable inferences theories. However, these theories almost can not be directly applied to the actual sand making mechanical design or the determination of the operating parameters of the sand making system. The theories can be only regarded as the general reference. Therefore, the practical application still uses the empirical method design. Recently, some scholars have proposed the analytical methods for mechanisms of sand making from a completely different point from view with existing theory. These analytical methods will adapt to the actual production requirements to some extent.
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Development of Mechanism Sand Industry Enter Fast Lane

Since the 1990s, many places in China where is no natural sand began the study of the application of the mechanism sand. Then a lot of mechanism sand production lines were established. Since there are no entries for the mechanism sand in the national standard, there are still a lot of restrictions and resistance in the engineering use. After entering the new century, the implementation of new national gravel and sand standards provides the theoretical basis for the production and application of the mechanisms sand. Now the mechanism sand gradually embarks on the road of rapid development. Mechanisms sand is suitable for the policies of the country and it has a lot of advantages. For example, the mechanism sand can compensate for inadequate supply of the coarse sand and medium sand in the natural sand resources. The grade of the sand can be manually deployed and the composition of the sand can be artificially controlled. You can take full advantage of the various kinds of abandoned tailings or waste rock to achieve the purpose of the comprehensive utilization. The shortage of the sand resources opens a broad space for the promotion, application and the development of the mechanism sand.
In recent years, the commercial concrete mixing station with high degree of mechanization has been widely used. These enterprises have strength to do a lot of matching researches. In China, the mature application of the mechanism sand is in the large-scale water conservancy project. The supporting engineering construction aggregates production systems and experience in the use of the mechanism of sand are very perfect and mature.
 The gravel industry is a kind of resource industry. After experiencing the rapid development, the natural sand is also facing the reduction of resources and depletion problem like other resource products. Product quality of the natural sand decreases significantly. The resource depletion and the poor quality or specifications of the natural sand can not meet the requirements of the project and particularly can not meet the needs of the performance of the high-quality concrete.
In order to maintain the sustainable development of the sand and gravel industry, we should vigorously develop the mechanisms sand in response to the decline in quality and the reduction or depletion of natural medium coarse sand. We should also make full use of the tailings or waste rock and process them to replace the research and application of the natural sand. We should solve the problem of comprehensive utilization of resources in order to promote environmental protection.
The sand making machine produced by Henan Hongxing Mining Machinery is the ideal equipment for producing the mechanism sand. We should truly do well the work of comprehensive utilization of resources to guide the scientific development trend of the sand and gravel industry in China.
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Management of Crusher Should Avoid Three Problems

For mining enterprises, the crusher is an important production tool. Especially in today's modern production, the crusher is also an important symbol to measure the level of production technology of mining enterprises. The management and maintenance of the crusher is the basis of the production and operation management and it is important assurance for the quality of the products and an important way to improve the economic efficiency of enterprises. In the maintenance and management of the crusher, three problems often appear in the following aspects.
First, the updates of crushers are not timely and the device lags behind.
In the contemporary market economy conditions, the enterprises generally implement the policy of distribution according to work, which not only improves the employees' enthusiasm for production, but also increases the production index. However, due to various reasons and the lack of enterprise funds, the management level of the management staff can not keep up the pace. The neglect of the training of the staff makes the quality of the primary operators increasingly reduces, which leads to the backwardness of the technology and equipment. At present, the aging backward crusher has greatly affected the production of enterprises, and gradually increased the cost of production. Therefore, the untimely update of the crushers is one of the important factors to cause the above effects.
Second, the maintenance work, such as the cleaning, lubrication and theperiodic replacement of the vulnerability consumable parts are imperfect. Since the environment of the mining enterprise is harsh with large amount of dust and noise. Therefore, the daily maintenance of the crushers and sand making machine is especially important. However, most of the mining enterprises ignore the cleaning and lubrication of the equipment in normal operation resulting in increase of the frictional resistance and acceleration of equipment wear and tear, which shortens the maintenance period of the equipment and greatly reduces the service life of the equipment.
Third, the technical condition of the idle equipment is intact. There are no dustproof, rust protection and dampproof measures for the idle equipment or spare equipment, especially the wearing parts. In addition, there is no regular inspection and maintenance, which seriously affects the technical state of the equipment.
The management level of the crushers directly affects the completion of the task of the production and economic benefits, and device management is a multi-level complex system. We should do well the work of each later in the order to ensure the normal operation of the construction of production.

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An Introduction to the Single Rotor Hammer Crusher

The hammer crushers are different in terms of purpose, scope, structure, characteristics, specifications, performance characteristics, but the basic structure is similar. The single rotor hammer crusher is mainly composed of transmissions, rotor, grizzly, rack and hammer and other components.
The grid screen is under the rotor which is composed of the sieve frame and sieve. The two symmetrical parts of the sieve frame are arranged in parallel. The grizzly is composed of the small blocks of sieves. The gap between the sieve surface and the hammerhead can be adjusted conveniently by changing the vertical position of the eyebolt. The rack of the hammer crusher is box structure, which is welded by the steel plate. The rack can be divided into upper part and lower part along the center line of the direction of the rotor. The feed port is located at the top. The materials that have been crushed are discharged from the grid sieve at the bottom the box. The inner wall of the rack is usually equipped with the manganese steel or high-chromium steel liner plate. Therefore, in the crushing operations, there is great impact in the machine. The wear of grinding crushing effect is not very obvious. For the ease of maintenance, the upper rack and lower rack can achieve removable separation. The structure and working procedure of the reversible hammer crusher are similar to the irreversible hammer crusher. Its rotor can achieve the reverse operation. In addition, when one side of the hammerhead is worn, you can make full use of the reverse operation of the rotors to make the other side which is not worn continue to work. It requires that the structure and many parts of the equipment should be symmetrically designed. The structure and the working procedure of the double rotor hammer crusher are basically the same as with the single rotor hammer crusher. The different point is that the two rotors of the double rotor hammer crusher are arranged in parallel. The feeding size is larger of the double rotor hammer crusher with large crushing capacity. Therefore, the double rotor hammer crusher is often used in the cement industry for first-class or second-class crushing.
For a long time, the types and performance of the hammer crusher are gradually improved. The crushing particle size of the double rotor hammer crusher is uniform and the performance of the machine is high.

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Installation Process and Preparatory of Jaw Crusher

Before the installation of the jaw crusher, it is necessary to check whether the basic manufacturing is right, and whether the installation complies to the manufacturer's drawings and manufacturing technology conditions. After adjusting all degree of curvature of the centerline, you should check the positions of the foundation bolt holes are correctly and set the foundation bolts. At the same time, you should also use the plumb line or template to check if the installation location of foundation bolts conforms to the drawings.
First, install the rack of the jaw crusher and use the level and plumb line to check the position of the shaft centerline. Mat a pad between the bracket and the foundation. Then you can adjust the level of the position of rack. There should be sufficient bonding surface between the pad and the rack so that there will be no skew phenomenon when the bolts are closed. The size and location of the pad should be used according to the size of the rack and the position of the foundation bolts. When you install the rack on the basis, you must remain a 2-3 cm gap between the base and the foundation so that irrigation of the cement paste is easy. After the installation of the rack, you can irrigate the cement paste.
After the cement paste is solidified and the foundation bolts are tightened, you can continue to install the remaining parts of the jaw crusher. In order to reduce the shaking and vibration, you had better not directly install the jaw crusher on the concrete foundation, but should install it on a shelf made of square timber. Sometimes, you can put a spring pad between the rack and the foundation to absorb the noise and the vibration. When you install the jaw crusher on the square timber, the horizontal position of the jaw crusher can be adjusted by the desired thickness of the scappled square timber.
If the nuggets smoothly enter the crushing roller and the processing capacity and granularity of the discharged finished products are in full compliance with the requirements of technical features, the jaw crusher can be handed over to use.
Before starting the jaw crusher, be sure to check the following items, such as pulleys, gears, side bearings, bushings, wheel taut cone, the liner and the tension of the insurance spring. You should specifically proceed from the following aspects. First, check whether there is lubricating oil in the bearing. Second, check if the drive belts are in good condition. Third, check the width of the opening between the rolls. Fourth, check the loading chute and discharge chute.

How to Extend the Service Life of Hammer Crusher

Hammer crusher is a kind of crusher which uses hammerhead with high-speed rotation to impact the materials to make the material rupture along its natural fissures, bedding planes, joints and other vulnerable parts. The hammer crusher is widely used in mining, metallurgy, building materials and electricity industries. In the running process of the hammer crusher, due to the impact and friction of the materials, the hammerhead, liner, grate bars and other parts are inevitably subjected to wear and failure. The hammerhead is the most important wear part and its consumption is great. The hammerhead needs to be reserved a lot, which not only takes up the funds, but also affects the normal production of enterprises. The proper use and scientific maintenance of the equipment is the effective way to keep the equipment always in good condition and extend the service life of the hammer. If the hammer crusher is used and maintained improperly, the equipment failure is easy caused, such as vibration, noise, heat, wear, and it is bound to incur the reduction of the service life of the hammer.
You should pay much attention to the followings in the daily use of the hammer crusher.
First, appropriately control the size of the feed according to the design model. You mustn’t exceed maximum limit of design of the machine.
Second, choose appropriate feeding equipment. For example, you can use the apron feeder or vibrating feeder for feeding. You should endure the uniform and stable feeding and avoid the uneven feeding which may causes the impact or invalid operation of the equipment.
Third, since the weight of the hammerhead has error, you should ensure the balance operation of the rotor according to the current situation in the using process of the hammerhead.
Forth, you had better weigh the hammerhead when it is replaced. You can divide them into several groups according to the weight. The weight of every group should be equal. Otherwise, the imbalance of the rotor will cause vibration.
Fifth, carefully check the gap between hammer and screen bars when the machine stops. The gap can be adjusted if necessary. You should periodically replace the screen bars. The costs of the hammerhead are higher than the costs of the screen bars.
Sixth, the hammer frame of the hammer crusher is cast steel which has less contact with the material. When the metal objects enter the crusher or the liners fall off, the hammer plate is likely to be damaged or bent. At this time, you should timely change it. Otherwise, the hammerhead is easy to be damaged which will cause vibration.
Generally speaking, if we want to increase the service life of hammerhead of the hammer crusher, the manufacturers should try to guarantee and improve the quality of the hammer material and mechanical properties.

Use of Mechanochemical Effect in Milling Process

In the grinding process, with the various mechanical forces of the powder particles and the change in the crystal structure, the nature of the physical-chemical and chemical reaction, the chemical effect of the mechanical force can be applied to the synthesis of new materials, the use of grinding aids and chemical modification of the mechanical force.
First, we will talk about the synthesis of new materials. Using the chemical effect of the mechanical force can synthesize the new materials which can not be synthesized under normal circumstances. The new materials synthesized by the chemical effect of the mechanical force are more excellent than the new materials synthesized by the conventional method. The material can be either inorganic material or metallic material. It also may be the organic polymer material. The high-energy material used in ball mill is the application of the mechanochemical effect in the field of materials.
Second, this paragraph will explore the use of the grinding aids. The crushin of the particles means that the break of the chemical bonds and re-combination of the substance. With pulverization and generation of the fracture surface, unsaturated covalent bond and structural unit with charge appear on the surface of the particles so that the particles are in metastable high-energy state. When the conditions are right, the particles agglomerate and become the agglomeration body with the relatively weak force of gravity. Under the relative strong action of the chemical bond, the materials agglomerate as a whole to become true agglomerates. Therefore, pulverization is a reversible process. If some way can be used to promote the pulverization to the positive direction, it is possible to obtain the products with finer particle size and larger specific surface area. In this way, the pulverization efficiency can be improved and the energy consumption and production costs can be reduced.  Under the guidance of the theory of mechanochemical effect in the grinding process, people find that certain substances (water, electrolyte, or surface-active agents, etc.) can be added in the grinding process to achieve this purpose. Since grinding is a process of gradual accumulation of energy, the energy on the surface of the particles and cracks become more and more as the grinding time goes. The formation of the charged groups of the unsaturated covalent bond will contribute to the secondary reunion of the particles. After adding the grinding aid, the grinding aid will adsorb on the active surface of the particles and balance tariff to shield the agglomeration force and prevent the coalescence of the powder.
Third, the chemical modification of the mechanical force is the application of the mechanochemical effects in the modification process of the powder surface in the grinding process.

Material Level Control Is Applied to Cone Crusher

In the three sections of closed circuit crushing operations, the fine crushing operation mainly processes the products after being screened. The efficiency of the crusher is in a pivotal position in the entire process. For the given ore and equipment, the efficiency of the fine crushing cone crusher is mainly determined by feed size, the amount of feeding ore and the size of discharge opening. These factors mutually influence and constraint. If a factor changes, another factor must change accordingly. We must improve the crushing efficiency of the crusher. However, the manual operation is lack of automatic detection and control means. In the production process, it is difficult to adjust the amount of ore conditions timely according to the real-time change so that the load of the crushing is instability. The instability of the ore in the crushing cavity ore affects the normal production. Therefore, the experts of Henan Hongxing Mining Machinery consider that we should use the material level automation control technology to improve the automatic control level in the production process, improve the capacity of the crushing production systems, reduce the granularity of the crushed minerals and save energy.
 After the investigation of the automatic control in the fine crushing process, the experts have detailedly ananalysize the operating conditions and process of the fine crushing. The implementation plan of the material automation control is as the followings. Install the level meter in the ore crushing chamber for the real-time detection of the material level of cone crusher. The variable frequency inverter is used for the ore belt conveyor. The major loop should be installed with current transducer to detect the current of the host of the cone crusher. Change the speed of the belt conveyor by the transducer to adjust the amount of ore to control the material level of the ore in crushing cavity. In this way, the power of the motor will be controlled within the set range.
The transformation programs of the control system mainly use the computer control system to control the cone crusher. You should complete the following specific functions. First, the Frequency converter should be used to adjust the speed of the belt conveyor. Second, in the crushing cavity of the fine crushing cone crusher, the level meter should be installed for real-time detection of the material level of ore of cone crusher. After the transformation, the crushing efficiency is improved significantly.

Analysis about Factors Affecting Screening Process

When you are sieving materials, you must make the material in the loose state so that each particles can obtain the necessary energy and space for mutual displacement. In addition, you should also promote the coarse particles of the materials stuck in the mesh to shun away so that the fine particles of the materials can be better screened.
First, the experts of Henan Hongxing Mining Machinery will briefly introduce the screening process. Large numbers of granular materials with different particle size are sent to the surface of the vibrating screen. Only part of the small particles can directly contact with the screen surface. Most particles which are smaller than the size of mesh distribute throughout the material layer. Due to the relative movement of the material with the sieve surface, the material layer on the screen surface is loose so that the gap that already exists between the large particles is further expanded. The small particles transfer to the lower layer through the gap, but particles can not pass through the small gap between the small particles. As a result, the large particles in motion location are rising, while the position of the small particles decline so that the original chaotic particles are isolated. In this way, the screening process is completed.
Second, let us analysize the factors affecting the screening process.
In the actual screening process, the particles which are smaller than the mesh will be under the sieve. There are many affecting factors, including the nature of the material, the performance of the screening equipment and operation management of the screening machine. The natures of the materials which have the impact on the screening process mainly include the relative size of the particles and the mesh, the moisture of the material and silt content. When the particles are smaller than the sieve, after repeated contact with the sieve comparison, there will be sifting opportunities. The sifting probability of the particles mainly depends on: the ratio of the projection area and the mesh area on the sieve plane.
The performance of the sieving equipment and process parameters has the impact on the screening process. However, the same material use different equipments will have different screening effects. It mainly depends on the parameters of the process of screening equipment: the movement form of screen surface, the length of the screen surface, the width of the screen surface, the inclination and the shape of the mesh.