Beneficiation Methods and Process of Molybdenum Ore

The development of the molybdenum ore processing equipment has had half a century of history in our country. The gap between domestic ore beneficiation technology of the molybdenum ore and the foreign ore beneficiation technology of the molybdenum ore is becoming smaller and smaller. Flotation is the main ore beneficiation method for the molybdenum ore.
When we deeply sort the molybdenum ores which contains slight amount of copper, we use partial mixing, namely differential flotation. The valuable mine in the molybdenum includes the molybdenite, iron pyrite and slight amount of copper pyrites. The molybdenum copper mixed flotation, tailings flotation pyrite and part of the mixture of the copper and molybdenum separation and the molybdenum concentrates are used in the ore beneficiation profess. At present, our country also recovers the molybdenum from the copper molybdenum ores. The common process flow if the copper molybdenum mixed flotation for copper molybdenum separation and the concentration of the molybdenum concentrate.
There are two ways for the copper molybdenum separation and the concentration of the molybdenum concentrate, namely the sodium sulfide method and the sodium cyanide method. The times of the molybdenum concentration mainly depends on the total enrichment ratio of the molybdenum. Generally, if the total enrichment ratio is high, the concentration number is large. On the contrary, if the total enrichment ratio is low, the concentration number will be small. In recent years, in order to meet the export needs of the molybdenum concentrates, Henan Hongxing Mining Machinery adopts the hydrochloric-acid ferric trichloride to remove the impurity in the molybdenum concntrate.
From the molybdenum processing plant of colored system, there is a big difference of the grade of the processing raw ore. The grade of some ores is more than 0.3%, while others are lower than 0.1%. Some is only 0.02%. Most actual recovery rate of the ore beneficiation is more than 80%. The concentrate grade obtained is from 45% to 54%. The tailings grade is about 0.02%. In the current industrial production of the molybdenum, we mainly use the molybdenite concentrate for smelting and use the oxidizing roasting to extract the pure molybdenum trioxide and restore the molybdenum metal powder. The harmful impurities in the molybdenum concentrate, such as copper, lead, tin, arsenic, phosphorus, calcium, silica, etc., not only affect the quality of the molybdenum products, but also affect the molybdenum smelting technology and equipment, and cause pollution of the environment. Therefore, we should strictly control the beneficiation process to greatly improve the industrial value of the molybdenum deposit.
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Movement Feature of Moving Jaw of the Jaw Crusher

This article will compare the compound pendulum jaw crusher and the simple pendulum jaw breaker. From the analysis of the moving trajectory of the compound pendulum jaw crusher, we can learn that the upper horizontal displacement of the moving jaw is approximately 7.5 times as the lower horizontal displacement of the moving jaw. However, the vertical displacement distance of the upper part is slightly less than that of the lower part. For the entire movable jaw, the vertical displacement distance is two to three times as the distance of the horizontal displacement. From the analysis of the moving features of moving jaw of the compound pendulum jaw crusher, we have learned the following aspects.
First, when the jaw plate presses the materials, the moving jaw plate will partly do downward movement with the materials, which will produce a kind of power to promote the materials to move downward do speed up the discharge rate and improve the yield. The practice has proved that the yield of the compound pendulum jaw crusher is 20% to 30% higher than that of the simple pendulum jaw breaker with the same specifications.
Second, the upper horizontal pendulum momentum of the moving jaw is higher than the lower Horizontal pendulum momentum so that the bulk materials can be easily crushed on the upper part. The work area of the entire jaw plate is relatively uniform. It can meet crushing principles and it is conducive to the uniformity of the workloads of the jaw plate.
Third, there is great downward vertical moving force of the lower moving jaw while unloading, which can promote the discharging and repeatedly turn the products which have been crushed. In this way, the long flake products are reduced and the products are discharged as the block of materials in cubic shape.  In the compound pendulum jaw crusher, the materials also suffer from the grinding effect besides the crushing, chipping and folding crushing effect, which can improve the crushing force of the materials and can improve the production capacity.
Forth, the large vertical displacement of the movable jaw exacerbates the friction between the materials and jaw plate so that the jaw plate is worn rapidly. At the same time, the overcrushing phenomenon is exacerbated.
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The Calculation of the Determination of Hammerhead

Since the hammerhead of the hammer crusher is hung on the hammer plate by the hinge joint, correctly choosing the hammerhead is very important for the crushing efficiency and energy consumption of the hammer crusher. If the hammerhead is too small, it may can not meet the requirements to crush the materials for once. If the hammerhead is too large, the useless power may be consumed too much. As a result, the weight of the hammerhead must meet the requirements that the materials can be crushed for once. In addition, the useless should be up to the minimum and the hammerhead should not fall down backward. The weight of the hammerhead is also a very important parameter to extend the service life of the hammerhead and reduce the metal consumption.
If the weight of the hammerhead is appropriate, the hammerhead can crush the materials for once. If the selection of the weight of the hammer crusher is not right, you will only get half the result with twice the effort. The weight of the hammerhead should be chosen according to the shape of the hammerhead and the production capacity of the hammer crusher.
According to the principle of conservation of momentum, there must be speed loss after the hammerhead combats the materials. If the hammerhead strikes the material blocks, there will be lots of speed loss. At this time, the kinetic energy of the hammerhead will reduce due to the reduction of the speed. When the hammerhead meets the materials next time, it will pass quickly but can not crush the materials. Therefore, the production capacity will be reduced and the useless power will be increased. In order to make the falling down generated after the hammerhead strikes the materials can quickly restore to the normal working position under the action of the centrifugal force, the speed loss of the hammerhead should not be too much. According to actual practice, the speed loss of the hammerhead should be 40% to 60%.
The solid even broken hammer plate and the number of the hammerhead on the crushing plate of the hammer crusher should be determined by the feeding size and the particle size of the product size. When the bulk materials are crushed, the number of the crushing blocks should be small.
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Transformation Results of Hongxing Vibrating Screen

The ore beneficiation equipment experts of Henan Hongxing Mining Machinery regard the efficient unit combination vibrating screen as the object of study and use the dynamic design theory to carry out the dynamic design of a new type of vibrating screen. In addition, this article is aimed at solving the practical engineering problems. Therefore, the experts of Henan Hongxing Mining Machinery use the large finite element analysis software ANSYS10.0 for modal analysis and response analysis of the unit screen box of the novel vibrating screen. The experts have obtained the top 15 order modal frequency, mode of vibration and the steady-state response under the simple harmonic loads of the unit screen box of this kind of vibrating screen.
The main research work and conclusions are the following aspects.
First, the experts will introduce the new screening structure and the overall design of the program. Based on the thickness screening principle, the characteristics of the ideal screen surface movement pattern have been given. A new generation of vibrating screen has been designed according to the traditional vibrating screen structure with dual-amplitude different frequency. In the same screening machine, two different vibration parameters can be used, and these two vibration parameters are placed in two separate units on the sieve box. This effectively solves the design difficulties of the traditional double-amplitude and different-frequency vibrating screen. In addition, the novel vibrating screen has the following advantages. The structure is simple with light weight, which is easy for large-scale development. The vibrating screen has advanced vibration parameters and the unit area production capacity is large. It has high productivity.
First, the experts of Henan Hongxing Mining Machinery will analysis the screening characteristics and kinetic parameters of the design. Hongxing Machinery experts use the mechanical system dynamics theory to establish the a more accurate kinetic equation of the unit sieve of this new vibrating screen. The experts use the multi-freedom vibration systems theory to analyze the motion of the vibrating screen and calculate the amplitude, velocity, throwing index and other kinematic parameters at the special points of the screen surface. In addition, Hongxing experts also have carried out the design of the kinetic parameters of the new vibrating screen and given the main technical parameters, such as mass of vibration and the total stiffness of the spring of the vibrating screen. 
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Analysis about Chemical Changes in the Rotary Kiln

When the rotary kiln is started, we can adjust the velocity of flow in the rotary kiln to increase the temperature of the kiln end. In addition, the amount of fuel can be regulated to increase the temperature of the burning zone. We can make full use of the regulation of the combustion air (oxygen) to gradually increase the rotating speed and yield of the rotary kiln. The adjustment of the combustion air adjustment will help the manipulation of the rotary kiln. When the temperature of the kiln end decreases, you can not accelerate the rotational speed of the rotary kiln. The rotational speed can be accelerated only when the temperature rises. In the case of a light load, increase the rotational speed of the rotary kiln. After the balance of all the parameters, increase the load of the rotary kiln. It is easy to improve the rotational speed of the rotary kiln under the light load.
When the system of the rotary kiln is in a serious disorder, reducing the load of the rotary kiln helps calibrate its work system. After the disturbances are quelled, gradually increase the load of the rotary kiln. The work system of the rotary kiln can be corrected by reducing the rotational speed without reducing its load. After the disturbances are removed, gradually increase the speed of the rotary kiln and increasing the combustion air, which can raise the temperature of the kiln inlet to make it easier to correct the rotary kiln. Maintain the filling amount of clinker kiln in the firing zone which can protect the skin of the kiln. However, you can not always fix the materials in one place. Try to do changes as small as possible after you have understood the problems. Only change a parameter at the right time can you achieve satisfactory results. Changing the temperature of the secondary air can make the increase or decrease the temperature of the burning zone. If the temperature of the secondary air is too high, it may affect the kiln skin. In the calcining process in the kiln of the materials, the carbonate of the magnesium and calcium discomposes and the moisture in the kaolin evaporates. 
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Hongxing Rotary Kiln Can Process Zinc Leach Residue

Since the reduced iron has the advantages of high purity and coke is not needed in the production process, many countries are carrying out the production and research of direct reduced iron. The world reduced iron production has accounted for a large proportion of the total iron. The rotary kiln way is one of the production processes. However, the knot kiln affects its development. Since the 1950s, China began the research of the rotary kiln. The rotary kiln with different specifications has been built nearly, but the rotary kilns were not put into operation due to the abnormal operation of the knot kiln equipment. Henan Hongxing Mining Machinery uses the kiln new technology, namely head coal injection, which not only solves the pending kiln problem, but also has the advantages of good quality, low coal consumption, low cost, simple structure and easy and reliable operation.
The experts of Henan Hongxing Mining Machinery have systematically researched the coal injection gun when they carried out the technology research. In the direct reduction technology research of the rotary kiln, Henan Hongxing Mining Machinery used the traditional process at first. As a result, the pelletizing are effloresced, which makes the production can not be continued. Such pellets must use the high-temperature reduction process to prevent the efflorescence of the pellets. The traditional technology can not meet the high temperature requirements. Henan Hongxing Mining Machinery begins to consider using new technology of kiln head coal injection for the test. 
The semi-industrial tests are described as the followings. The pellets are added to the rotary kiln from the kiln layer. The mixture of the reduced coal and the desulfurization agent enter the kiln through the coal injection gun. At this time, the coal injection distance, secondary air ratio and other process conditions must be regulated. In this way, the pellets begin the reduction process after they are heated up to 900 ℃ in the neutral or oxidizing atmosphere. The pellet moves forward and the temperature of the kiln gradually increases. The reducing atmosphere gradually enhances to speed up the restore process. The materials discharged by the rotary are separated by the magnetic separator to produce the magnetic material and the non-magnetic material.
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New Hydraulic Cone Crusher Creates Leading Quality

The hydraulic cone crusher is a kind of cone crusher with international advanced level which has absorbed the advanced crushing technology of developed countries in Europe and the United States. There are four models of this machine including coarse crushing, medium crushing, fine crushing and ultra-fine crushing. The four models are designed for second-stage or three-stage crushing and all of them can be used in fixed or mobile sites. The new single-cylinder hydraulic crusher is widely used in metallurgy, construction, water, electricity, transportation, chemical industry and building materials industry. The entire control and the adjustment of the device produced by Henan Hongxing Mining Machinery lie in the bottom of the hydraulic cylinder of the crusher.
The crushing system of the single cylinder hydraulic cone crusher is mainly composed of the inner cone liner, outer cone liner, the bottom fuel tank and the gear. The part above the red line is mounted on the upper housing, while the part below the red line is mounted on the lower housing. The upper housing and the lower housing is connected by the bolts.
When the cone crusher is working, the motor drives the pinion of the crusher and the pinion drives the large gear. The large gear assemblies   (large gear, large gear frame and eccentric steel sleeve) drives the eccentric sleeve assemblies (the eccentric cylinder liner, eccentric copper sleeve) and the spindle assemblies (spindle, inner cone and inner cone liner. They regard the theoretical vertical line as the center and revolve in copper bush. The spindle assemblies can rotate in the eccentric copper sleeve.  When the machine runs without load, the eccentric sleeve assemblies and the spindle assemblies rotate together with the large gear. When the materials are added to the crushing chamber, the spindle assemblies (spindle, inner cone) slowly rotate in the eccentric copper sleeve with the resistance of the material. The trajectory of the inner cone looks like the back and forth swing in the crushing cavity. The materials are crushed by the swinging inner cone.
In this paragraph, the experts of Henan Hongxing Mining Machinery will introduce the adjustment of the size of the discharge port. The first function of the bottom hydraulic cylinder lies in the fluctuation position of the spindle so that the distance between the moving cone liner and the outer cone liner. If this distance becomes small, the discharge size of the crusher becomes small. At the same time, the choice of different crushing chamber type and different eccentric sleeve can also change the     discharge size of the materials.
The single cylinder hydraulic cone crusher produced by Henan Hongxing Mining Machinery is in an international leading technical level and it fully achieves the intelligent control especially in the control. The single-cylinder structure makes the adjustment of the machine become very convenient.
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Hongxing Crusher Helps Energy Saving of Mine Industry

Energy conservation is to strengthen energy management and take measures that the environment and the society can withstand with feasible technology and rational economy to reduce losses and waste in energy production and consumption from every aspect and more effectively and rationally use the limit energy. The energy saving is a long-term development strategy for sustainable development in China, which is also China's basic national policy. With China's rapid economic growth and the improvement of people's living standards, the imbalance between supply and demand is obviously apparent and the environmental pollution is serious. Therefore, the energy saving task is arduous. The mining and metallurgical industry consumes large amount of energy every year. The ore beneficiation is the intermediate link in mining and metallurgy industry, so we must take measures to reduce energy consumption to reduce the energy consumption indicators of the whole metallurgical industry.
In recent years, the emergence of many major beneficiation technologies and   energy-efficient crusher equipment provide the support of technology and equipment for the energy saving of ore beneficiation. For example, the grinding (semi-autogenous grinding and high pressure roller mill) replaces the crushing. The cyclone (group) replaces the original stage of grading by spiral classifier. The novel sieve replaces the old screening-level device. The inverter technology, beneficiation technology popularization and the automatic control are widely used. The development and application of these technologies optimize the beneficiation process, enhance the beneficiation technical and economic indicators and reduce the beneficiation energy consumption of the crusher to verify extent.
The practice has proved that the ultra-fine crushing equipment can greatly reduce the granularity of the crushed product. More crushing less grinding can reduce the particle size of the crushed product, which is one of the most effective means of reducing energy consumption per unit production costs for the mining enterprises to improve production capacity. The green crushers produced by Henan Hongxing Mining Machinery can increase production and reduce energy consumption.
The energy saving is the only way for the enterprises to enhance economic efficiency and achieve sustainable development, and it is an eternal theme in the production process. The production practice has proved that the advanced technology equipment and process is the fundamental approach to energy saving in China's mining industry.

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Importance of Consecutive Crushing for Crushing System

For a continuous crushing system, the system in dynamic balance is the ideal steady working state. The working process in this state is a quasi-stationary random process. The mean of each variable does not change over time except some fluctuation generated by a variety of random interference. Let's take the ball mill for an example. The distribution along the length of the ball mill and the energy input to the mill should be kept uniform. The the axial gradient of the material distribution is unchanged. Therefore, under the stable conditions of the input (feedwater feeding capacity, the feed particle size, the grindability), the system will have stable output (yield, product concentration, particle size distribution and working noise). The self-stabilization and self -unifomity trend of the milling system can be explained from the second law of generalized thermodynamics. As an independent system, the entropy always tends greatly within the system, which makes the inner part of the system in disordered state. However, outside of the system, there is stable water supply so that the system can continue to draw the negative entropy.
Any unstable external input will result in the change of the system state. If the system input fluctuation is less than its processing power, the fluctuations in the system status will only lead to the fluctuations of the output ( the change of yield and particle size distribution ) and the system itself will automatically reach the new dynamic equilibrium point. When the materials input outside is greater than the processing power of the system, the media can not timely grind and discharge the material. The material accumulation will further weaken the role of media grinding so that the material accumulation gradually increases in the mill. This  chain of causation of the automatic growth makes the grinding process enter the a vicious self-breeding state. The state marks the quick disintegration of the original steady state of the system. From the common view of the self-propagation process, there is also a critical condition in the milling system, i.e. the maximum processing capacity of the mill machine. The maximum processing capacity is not the unique value, but it is an area determined by the operating conditions. There will be self-propagation phenomenon when the system input is beyond this critical conditions. The critical condition of the maximum processing capacity of the milling system depends on the structure and stability of the system.
From the above analysis, the dynamic balance is a prerequisite for the normal work of the continuous grinding system. As a result, we should keep the stability of the machine.
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Performance Features of Single Stage Hammer Crusher

The structure of the single-stage hammer crusher is mainly composed of the rotor, counterattack board, crushing plate, nesting grizzly, discharge door for the foreign matters, the rack and other components. The hammer crusher produced by Henan Hongxing Mining Machinery is designed with the overhead strike type structure so that the machine has large crushing angle and crushing ratio, which can reduce the impact of large pieces of material against the rotor. This kind of structural design plays a protective role to protect the impact plate so that the service life of parts of the rotor is extent. The upper chamber of the crusher is equipped with a counter plate which can be adjusted. It has sufficient crushing space which can help to improve the crushing ratio of the upper chamber. The adjustable performance of the discharge lattice screen is strong so that the control of the crushing and discharge granularity becomes more convenient.
The single stage hammer crusher hammer is generally the full rotary type, that is, the rotation angle is 360 degrees. The line speed is generally in the 30-50 m / sec. The strength of the rotor has enough endurance for the impact of the bulk materials. Since the single stage hammer crusher can crush the materials about 1 meter into the particle size of less than 25 mm, it is used as the primary crusher. The single-stage hammer crusher is used very widely for the industries which want to get large crushing ratio. This characteristic obviously has great significance to simplify the process, reduce power consumption, reduce investment and increase economic efficiency. The drying hammer crusher is the crushing equipment for the materials with high water content. If the water content of the coal is less than 7% to 10%, you can use the drying hammer crusher both for drying and crushing the materials. This equipment set drying and crushing a two step one machine to complete, such as moisture content of the coal is less than 7% to 11%, can be applied.
The performance of the single stage hammer crusher is ideal and the crushing efficiency is obvious. The process parameters of the single stage hammer crusher produced by Henan Hongxing Mining Machinery fully strictly comply the standards.

Some Advantages of Impact Crusher in Energy Saving

Today's society is the society with sustainable development. The mining machinery and equipment enterprises are beginning to focus on the development of environmental protection and energy saving. For this production situation, various production companies have increased the improvement of environmental protection and energy saving. The impact crusher is a kind of environmentally friendly equipment.
First, the impact crusher can effectively deal with the materials with much moisture content to prevent clogging. When the impact crusher is processing materials with excessive moisture, the feed chute and counterattack board of the impact crusher can be equipped with a heating device to prevent the adhesion of the materials. The impact crusher can effectively prevent clogging without the bottom screen.
Second, the impact is convenient and flexible to regulate the feed size. The impact crusher can adjust the feed size through a variety of ways. For example, we can regulate the speed of the rotor and adjust the gap between the counter plate and the grinding chamber. The clearance adjustment can be achieved by the by mechanical or hydraulic adjustment. The hydraulic adjustment system can be easily achieved through local operating button or fortune control system to complete the adjustment of the gap.
Third, the impact crusher is not easy to be worn and the metal utilization is high. The wear of the board hammer of the impact crusher only appears on the side which is towards the materials. When the speed of the rotor is normal, the materials will fall to the surface of the board hammer. The back and sides of the board hammer will not be worn. In addition, the grinding rod on the bottom is also very easy to replace. The metal utilization rate of the board hammer of the impact crusher can be up to as high as 45% -48%.
Forth, the impact crusher is suitable for both soft materials and very hard materials. The board hammer of the impact crusher is firmly fixed on the rotor with mechanical clamping structure. The rotor has very large moment of inertia when it is rotating. Compared with the hammer crusher, the rotor of the impact crusher has greater momentum, which can be adapted to crushing hard materials and the energy consumption is low. 
Fifth, the spare parts are easy to replace with less maintenance costs. Only six board hammers are installed on the rotor of the impact crusher. The time and cost of repair and maintenance are greatly reduced.
It can be seen that the performance of the impact crusher already has a lot of advantages. It is very important for the environment and the production quality of the entire crusher production line.

A Review of Development of the Jaw Crusher

With the continuous development of modern industry, the various types of crushing equipment develop very rapidly at home and abroad. The specifications of the crushing equipment become more abundant. The crushing mechanism becomes more mature. The mere static crushing, impact free crushing and squeezing crushing have gradually developed into the high-pressure, high-energy and high-efficiency crushing with complex mechanism. This article will describe several common crushing equipments and review the development of the jaw crusher.
There has been more than 100 years’ history of the jaw crusher. Meantime, the structure of the device has gone through continuous improvement and innovation. The performance has been greatly improved, but there is no fundamental change in the basic principle which still basically belongs to the static extrusion crushing. There are more than 60 large and medium-sized enterprises to produce the jaw crushers. The jaw crushers produced by different enterprises have different characteristics, size specifications, models, performance and output. In the applications of the jaw crushers, the simple pendulum jaw crusher and the compound pendulum jaw crusher are used most widely. The manufacturing technology in recent years has gone through the three stages. The stages can be divided into the imitation of the foreign advanced equipment, improvement and self-design. At present, the domestic jaw crushers have basically reached the internationalization and have formed the product line. The update and design make the structure and performance of the equipment more rationalized and advanced. In the update and design of the compound pendulum jaw crusher, Henan Hongxing Mining Machinery appropriately reduces the hanging height of the moving jaw, increases the volume of the crushing chamber, narrows eccentricity, reduces tooth angle, installs the screw or the hydraulic adjustment device and improve the shape and materials of the liner (pad) so that the trajectory of the movable jaw is more reasonable. The operation and adjustment is more convenient and the repair cycle and service life is extended. In addition, the crushing efficiency and production capacity is significantly improved. The compound pendulum jaw crusher has significant technical characteristics after transformation.
The simple pendulum jaw crusher produced by Henan Hongxing Mining Machinery has the separated structure. The jaw crusher is connected by the screw or pin. The bearing spindle and moving jaw use the sliding bearing. The thin oil is used as the lubricant. The equipment is controlled by the hydraulic system. In order to meet the needs of the factories, mines, building materials, road construction and mineral processing, Henan Hongxing Mining Machinery continuously innovate and develop more new crushing equipments.

How to Simplify Crushing Links and Reduce Costs

The crusher equipment is indispensable in the ore beneficiation production. The crusher equipment serves production to meet the requirements of the production process, reduce labor intensity and improve labor productivity. Crusher equipment has played a huge role for human transformation of nature and the creation of wealth. Therefore, we should improve the crusher equipment to make it more complete and efficient with better and higher performance to provide better service for mankind.
Copper-nickel ore smelting workshop was founded in 1998. The material crushing system processes are the followings. The materials enter the # 1 crusher through the chute feeder. The materials after being crushed are sent into the vibrating screen for separation of the block and powder by the # 1 transport belt conveyor. The powder ore is sent to # 2 conveyor belt by the sub-feeder. The lump ore is sent to the # 2 crusher for secondary crushing by # 3 conveyor belt and then it is sent to the vibrating screen separation of the block and powder by # 1 conveyor belt. The block mine is sent to silo by 4 # conveyor belt. This is a cycle. The process is cumbersome and complex and labor intensity of the employees is large. In addition, the efficiency is very low. Only the continuous crushing for 24 hours can meet production. Once the equipment fails, it will affect the entire production. Due to the production conditions, the loss of the device is also very large and the cost increases correspondingly.
We have done a lot of on-site investigation and finally decide to transform the entire crushing system. Now we will introduce the transformation process. First, we adjust the discharge mouth of the crusher in order to meet the technical requirements and complete crushing operation once. Second, the sieve of the vibrating screen is adjusted. The sieve is narrowed 50% and 2,3,4 belt and 2 # crusher is removed. Under the vibrating screen, we directly make and install two silos to reduce the transport links of the belt.
After a period of time of intense work, we have successfully completed the transformation of the installation work and the production capacity has been improved. The cost of equipment repair and maintenance is reduced greatly. The most significant effect is that the working efficiency is increase by 300%. Due to the reduction of the equipment, the working environment has also been improved so that the workers have higher enthusiasm. Therefore, we should use the view of scientific development to solve the problems in the production.

Tooth Form of Jaw Plate Has Impact on Efficiency

The compound pendulum jaw crusher is one of the most important product in the crushing industry. It has the advantages of simple structure, easy maintenance, high reliability, and large crushing ratio. The speed of development of the jaw crusher is quick. There are products coming out every 5 ~ l0 years, including the improvements from the rack to the jaw plate and various of parts.
The movable jaw plate and the fixed jaw plate are the direct working face of the jaw crusher for crushing rocks. The crushing force of the machine is imposed on the rock through the two jaw plates to complete the crushing task. Judging from the current situation, the tooth form of the jaw plate is different. The tooth form of the jaw plate has great impact on the production capacity of the jaw crusher.
 Different jaw crushers have different tooth forms of the jaw plates. Now we will talk about the tooth forms of the jaw plates in terms of tooth height, angle of the tooth form, and the number of teeth.  Like other types of machinery, the jaw crusher has its own characteristic parameters, such as noise, unit power consumption, production capacity, product granularity, in which the production capacity is main parameters. Some manufacturers have carried out the trials of the crusher, but they can only do some estimates on the production capacity due to the limits of experimental conditions and means. After the high-level test of Henan Hongxing Mining Machinery for the production capacity of the jaw crusher, we find that the rotational speed of the machine and shape of the crushing chamber have an impact on the production capacity of the machine besides tooth forms of the jaw plates.
No matter what kind of tooth, the final results will cause the bend and shear of the rock. In this experiment, the compressive strength is 80 ~ 120MP. There are two types of tooth forms: triangular teeth and trapezoidal teeth. After the experiment, we can find that  the trapezoidal teeth is more wearable than the triangular teeth. The physical properties of the triangular teeth are better than that of trapezoidal teeth.