Jaw Crusher Can Be Used to Crush Various Materials

In the ore operations, one of the important uses of the crushing operation of the jaw crusher is to prepare the original ore to the useful components. At this time, the materials to be crushed are different from the single and uniform materials and different from the mixing materials
Generally, the very coarse ore particles are equivalent to a kind of homogeneous material, which contain the useful mineral inclusions occurs in the gangue mineral matrix. In mining, a jaw crusher is used to reduce large rocks into smaller pieces of rock, like gravel. A jaw crusher is usually the first part of a system of several crushing machines that break down the material into the desired shape and size. Large rocks are inserted into the mouth of the crushing chamber, where hydraulic pressure is applied to the material to crush it into a roughly uniform smaller size. There are essentially two types of jaw crushers: overhead eccentric and double-toggle. Each type of jaw crusher uses a different method to power the crushing chamber of the jaw crushing unit. The particularly fine ore particles close to a kind of free useful minerals with a variety of free gangue mineral mixture. The adjusting device of Hongxing jaw crusher can be used to adjust the size of the discharge gate, and there are two kinds of adjusting mechanism forms which can make flexible adjustment and achieve the promise adjustment. Compared with other jaw crushers, our machine has a longer crushing chamber and smaller locking angles. This design can effectively increase crushing strength of our jaw crusher.
For the materials with intermediate particles, if the particle size of the particles becomes small, the crushing process may separate the useful minerals from the gangue. As the leader of Mining Machinery industry, Henan Hongxing Mining Machinery has produced many types of jaw crusher, which can be used to crush various materials. The jaw crushers produced by Henan Hongxing Mining Machinery have exported to a lot of countries and they are favored by a lot of customers.
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How to Deal with Temperature Impact on Crusher Machine

The crusher machine is commonly used in the mining, construction, cement, railway and other fields. It is also often used in the plateau section or the open-pit mining in fall and winter. The crusher machine is greatly affected by the local climate, geological conditions and freezing layer. Cold climate and low temperature weather tend to reduce the service life of the crusher, which will bring serious loss to the users. For example, in the major mining areas in northern Inner Mongolia, the crusher machine is often troubled by the perennially seasonal frozen layer blasting and excavation.
In the blasting process, the stone which is difficult to be crushed is very hard like the iron in the cold winter. The blasting effect and bucketing efficiency will be seriously affected and the security risk also exists in the bucketing and transport process. In addition, huge impact will be brought to the crushing system when the large piece of stone enter the ore beneficiation process, which will cause clogging for the crushing station and increase the failure rate of the crusher machine. Seriously, production halts may occur.
The above description has told us the low temperature seriously affects the service life of the crushing machinery and equipment. Therefore, special process for the crusher machine is very necessary. Henan Hongxing Mining Machinery has done a lot of researches on the control of the harm to the crusher machine according to specific using environment. The crusher machine produced by Henan Hongxing Mining Machinery has been greatly improved to adapt to the production in the low-temperature environment.
In addition, the temperature of the individual components has the normal range. Particularly in the using process, the crusher machine should not work with overload in the low temperature to ensure the normal operation of the low speed pre-temperature stage. The machine can be started when it has reached the predetermined temperature. The machine should not operate in the high temperature. We should frequently check the value in the various thermometers. If there is problem, you should immediately stop the machine and exclude the faults.

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Air Distribution Method for the Rotary Kiln

With the burnout effect of the circulating fluidized bed in the incineration system with pyrolysis gas and solid product, the overall temperature of the circulating fluidized bed is between 850℃ to 1100 ℃. The classification of the air supply and the oxygen-enriched combustion make the reaction become strong. After the solid materials enter the circulating fluidized bed, the materials run in the fluidization shape. The is residence time is more than 40 minutes to 60 minutes, which can ensure that the solid material can burn out in the rotary kiln. The hot burning lapse rate of the ash discharged from the rotary kiln is less than 2%, which is far below the incineration standard. The combustible gas after pyrolysis in the rotary kiln can burn rapidly after it enter the circulating fluidized bed with the high turbulence fed by the classifier and high-oxygen conditions. The residence time of the flue gas in the circulating fluidized bed is more than 3 seconds to 4 seconds, which can make the available natural gas fully burn and effectively inhibit the generation of the harmful substances.
In the circulating fluidized bed of the rotary kiln, the limestone is added as the bed material. The calcium oxide produced by the limestone with the pyrolysis under the high temperature can react with the hydrogen chloride and other acid gas produced in the incineration of the medical wastes. In this way, the emission concentration of the hydrogen chloride can be reduced, which can avoid the corrosion problems of the tail equipment. The high temperature flue gas produced by the circulating fluidized bed is cooled to 500℃ through the air preheater and the pyrolysis wind and stream wind are heated to more than 500℃. The high temperature combustion air can improve the combustion temperature level in the incineration chamber so that the medical wastes can keep burning without the auxiliary of the fuel. The fuel gas from the high-temperature air preheater is cooled to less than 200℃ through the fuel cold device.

Replacement Procedure of Thrust Board of Jaw Crusher

Henan Hongxing Mining Machinery is a well-know brand in the mining machinery manufacturing industry, which is a share holding system integrated with the development, research, production and the sales. How to replace the thrust spring and the thrust board at the bottom of the jaw crusher when they are damaged? The experts of Henan Hongxing Mining Machinery will detailed introduce the replacement procedure of the thrust board of the jaw crusher in this article.
When the thrust board of the crusher is seriously worn or the front thrust board is broken, you must remove the ore stones in the crushing cavity and remove the worn or broken thrust board. In addition, you should check if the toggle plate on the moving jaw and the connecting rod are damaged. You should pull the moving jaw near the fixed jaw. Replace the old thrust board with a new thrust plate after lubricate with dry oil on the working face of the toggle plate so that the new thrust plate can slowly contact with the working face of the toggle plate. You should tense the level rod so that the moving jaw can nip the thrust plate.  Tighten the security cover and connect the lubrication system, and then adjust the size of the discharge mouth.
The most frequent repair project for the jaw crusher is to replace the thrust plate. For the whole crusher machine, you should first disassemble the thrust plate. You should tighten the baffle bolt and cut off the dry oil lubricating pipe to hang the thrust plate on the hook of the crane or other lifting equipments. Then you can loose one end of the spring of the waling stripe. Pull the moving jaw to the direction of the fixed jaw and remove the thrust plate. If you need to remove the back thrust board, you should open the connecting rod, front thrust board and the moving jaw together. After disassembling the thrust, you should cut off the dilute lubricating oil tubing and the cooling water pipe. There should be a frame at the lower part of the connecting rod. Then you can disassemble the rod cap in order to lift out rod.
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Perfect Brand and Service Boost Development of Crusher

With the increasingly rapid pace of economic development in China, the change of the development situation and the acceleration of the pace of the infrastructure construction, the technical level of the domestic mining machinery is gradually enhanced and the mining machinery has become an important support of the national industrial manufacturing industry. The performance, quality and the technical level of the crusher machine have definitely improved. In the homogeneity times, the perfect brand and after-sales service have become a key role in the market competition.
Henan Hongxing Mining Machinery is a large professional enterprise for the development, production, sale and after-sales service. Henan Hongxing Mining Machinery has decades’ production history with excellent quality brand. The high-quality crusher machine produced by Henan Hongxing Mining Machinery has been favored by a lot of customers at home and abroad. Henan Hongxing Mining Machinery has produced various types of crusher machines, which has brought direct economic benefits and has brought praise for the customers.
Today, after-sales service has become the most important lesson in marketing, which has become the advantage for the business and customers. Good after-sales service is a main way to enhance customer satisfaction and loyalty and the best promotion for the establishment and the important approach for the next sale. Therefore, the increasingly fierce market competition in the crusher industry can gradually transmit the competition between the service and the brand. The perfect after-sales service system and the influence of world brand will drive the bright future in the mining machinery industry.
All the well-known large and small enterprises depend on the high quality, high-end brand and the comprehensive service support. The development of the crusher industries also need to focus on the brand building and the perfect service system, which can improve the satisfaction of the customers. The perfect brand effect of the crusher machine can potentially establish a kind of propaganda dissemination, significantly reduce costs and increase the market share and brand reputation to promote the crusher industry to the international stage.
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How to Reduce Attrition of the Sand Making Machine

The sand making machine is a common casting machinery and equipment. Since the sand making machine has large crushing ratio and high-speed rotation, the attrition faults of the wear parts is frequent, which will cause frequent repair of the machine. Among the various wear pars of the sand making machine, the failure time for the attrition of the plate hammer is the shortest and the attrition cost is the highest. Therefore, reducing the consumption of the plate hammer is the key issue to solve the attrition of the plate hammer.
The factors that affect the consumption of the plate hammer of the sand making machine are the followings.
The first is the line speed. The line speed is the parameter which has the greatest impact on the attrition of the plate hammer of the sand making machine, because the size of the line speed directly affects the size of the impact energy and the size of the ratio. The line speed also plays a decisive role in the particle size of the product. Too great line speed will cause that the material can not enter the impact area so that there is severe attrition between the materials and the plate hammer.
The second is the processing capacity and the discharge gap. When the processing power of the sand making machine increases, the product size will be thicker and the crushing ratio will become small. Then the unit attrition consumption of the board hammer will also reduce. Similarly, changing the size of the discharge gap can also change the particle size of the products to some extent.
The third is the nature of the materials to be broken. The effect of the materials to be crushed on the sand making machine includes the nature of the materials, the feeding granularity and the moisture content of the materials.
How to reduce the attrition of the plate hammer of the sand making machine?
First, we should reasonably choose the parameters. Choosing a reasonable line speed is very important. To this end, we should reduce the line speed of rotation of the rotor as much as possible.
Second, try to improve the wear resistance of the material of the plate hammer. The data has indicated that the chromium-molybdenum alloy steel, high chromium cast iron can be used as perfect materials for casting the plate hammer.
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Maintenance Knowledge about the Grinding Machine

There are a lot of grinding machine, such as the ball mill and Raymond mill. The grinding machine is widely used for grinding materials in various industries. As a result, grasping certain maintenance knowledge about the grinding machine is very necessary.
First, check if the adjustment of the roller, bearings, belts, gears and other parts is correct to prevent the abnormal vibration or noise.
Second, keep the load on the grinding roller so that the flow rate is uniform. Check if distribution of the flow of the whole grinding roller and the grinding are uniform. Maintain the adjustment ability of the grinding machine. The scraper or brush can be used to clean the grinding roller.
Third, check the work situation of the roller device. Pay special attention to the fastening situation of the connecting bolts to prevent the accident caused by the looseness of the screws and falling off of the grinding roll.
Forth, check the temperature of the surface of the grinding roller and the temperature of the motor. The rising temperature of the operation of the transmission system may lead to the heating of the belt and the rising temperature of the oil.
Fifth, during the feeding process, the diameter of the hard materials should be preferably less than 15 mm. The diameter of the soft material diameter can be 20 mm. The bulk materials are not allowed to be added to the machine. The feeding should be uniform. Too many materials will block the air flue, reduce the yield and burn out the motor. Too few materials will also affect the yield.
Sixth, the metal blocks are not allowed to enter the machine. Otherwise, the grinding roller and grinding ring even the center hanger will be damaged.
Seventh, the air flow control valve of the mill on the inlet air pipe of the fan is generally opened to the maximum position. According to the fineness and the production requirements, you can do appropriate adjustments.
Eighth, according to the difference of the size, hardness, moisture content, specific gravity and the processing of the materials to be grinded, you can adjust the upper analyzer.
Ninth, if the surface of the grinding roller is uneven, you should timely replace the roller.

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Mobile Crusher Plant Helps Disposal of Construction Waste

The majority of construction waste is generated in the process of housing reconstruction, repair, decoration or road expansion. Large amount of the waste concrete, bricks, stone, abandoned reinforcing steel bars, glass, muck and wood in the construction waste. The construction waste is hard for disposal like the garbage in daily life. However, long-term placement of stuffing will not only occupy the land resources and affect convenient transportation, but also distribute the unpleasant smell and cause pollution of the environment. Therefore, scientific solution for the disposal of the construction waste needs professional processing equipment, which can make the waste resources become the renewable resources to achieve the low-carbon and environmental protection changes for the construction waste.
With the continuous progress of science and technology, China's construction waste treatment technology has been successfully applied at home and abroad. As a professional and excellent construction waste disposal equipment manufacturers, Henan Hongxing Mining Machinery has comprehensively analyzed the construction waste. At present, the mobile crusher plant" href="http://www.crusher-export.com/crusher/n123.htm">mobile crusher plant produced by Henan Hongxing Mining Machinery is specialized for the disposal of the construction waste. The new generation of the mobile crusher plant sets the feeding process, crushing process and the transport process as a whole, which is widely used for the crushing and screening operations for the disposal of the mining wastes in the engineering construction and mining industry. The mobile crusher plant can remove the pollution caused by the construction waste. In addition, the construction waste becomes valuable, which promotes the construction waste disposal to go towards a sustainable development road.
The mobile crusher plant can help the recycling of the construction wastes and make them become valuable to benefit humans. For example, after brick, stone, concrete and other waste are crushed, they can be used as the sand for the masonry of the sand pulp and plastering mortar. The waste concrete blocks after fine crushing can be mixed with the standard sand as the sand slurry. The recycling of the construction waste can save the energy and achieve the clean production and closed circular economy industrial chain to protect human environment. More importantly, the construction waste disposal industry as an emerging industry can make the enterprises achieve economic and social benefits to create the greatest wealth in the not optimistic economic situation.
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Ways to Reduce Attrition of Grate of the Hammer Crusher

The hammer crusher generates high-speed rotation with the drive of the motor through the rotor to drive the rotation of the hammerhead fixed on the rotor. Then the hammerhead repeatedly strikes the materials falling down continuously and it gradually crushes the materials with different weight to the required particle size. At last, the grate installed at the discharging port is used for coarse screening of the materials. The finished products which meet the requirements can pass the grate excluding devices, while the materials that do not meet the requirements will enter the secondary crushing process.
In the working process of the Hammer crusher, the attrition of the grate and the supporting frame of the grate are also frequently beside the attrition of the rotor and the hammerhead. Therefore, in order to extend the service life of the equipment, we should improve the attrition degree of the grate and reduce the replacement times. For this situation, the professional manufacturer Henan Hongxing Mining Machinery has put forward the improvement measures for the grate of the hammer crusher after careful study to ensure the normal use and maintenance of the large amount of the users.
The first problem considered is the design of the hammer crusher. We can change the groove cage bar supporting bracket in the equipment design into the design without groove cage bar supporting bracket in the premise that the work performance of the crusher should not be affected. In this way, the discharging length of the materials can be increase effectively. In addition, it can play a good role in terms of the fixity of the grate bars.
Second, we can change the short grate bars into the long grate bars with a convex edge in the middle. At the same time, we can change the small and short curved flat lining installed on both sides of the rack of the bottom of the equipment into a large curved board. The outer arc should be widened. After that, weld the screw holes which are not in use to prevent the scatter of the dust. The improvement of the grate of the hammer crusher can effectively reduce the attrition of the grate, which can save the maintenance costs.
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The Maintenance Standards for Roller Crusher

In terms of the commissioning of the roller crusher, you should pay attention to the following matters before the commissioning. First, you should check if all fastening parts are fastened. Second, check if the gap between the rollers has adjusted to the desired size. Third, check if the oil of the various lubricating parts is enough. Forth, check if there are metal objects or other debris falling into the spring. Fifth, check if there are obstructions around the machine to interfere the normal operation of the equipment.
For the empty load test of the roller crusher, the unloaded load test should be not less than two hours. The temperature of the bearing must not exceed 60 °C. The coupling should rotate flexibly. The temperature of the rolling bearing should not exceed 70 °C.  The sealing should be good. The equipment should run smoothly and there should be no obvious sound of the roll gaps.
For the load test of the roller crusher, you can start the load test of the roller crusher if the roller crusher is normal after the empty load test. The load test should not be less than four hours. The spring force should be uniform. There should be no strong vibration for the machine body.  The lubrication should meet the requirements. The current of the motor should not exceed the specified value.
The maintenance quality standards of the roller crusher should meet the followings.
First, the lognitudinal level degree should not exceed 0.2/1000.
Second, when you assemble the sliding bearing, you should carry out the scraping for the bearing and the spherical surface to make it meet the following requirements. The contact cambered surface between the bearing bush and journal should be 1OO to120 degrees. The tip clearance between the bearing bush and the journal should be 0.10% to 0.15% of the diameter of the journal. The side gap of on each side should be 50% to 70% of the tip clearance. The contact area of the spherical bush should not be less than 60% of the total area of the spherical area and it should be concentrated in the intermediate position.
Third, when you assemble the rollers, the height difference of the patching of the roll skin should not be more than 3mm.
Forth, the gap between the movable roller and the fixing roller should be 4mm to 10mm. The gap can be adjusted according to production needs.
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Concentrator Need Choose Device According to Particles

The concentrator should use the equipments with different types according to the size of the particles to be separated. In the experiment, the vibrating screen can be used for the separation of particles whose diameter is more than 0.25 cm. The diameter which is lower than the 0.25cm will lead to the low efficiency in the screening process. The separation process is based on the difference of the sedimentation velocity of particles in the fluid, which is often referred to as the grading.
With the action of the gravity, the particles and fluid will suffer from the resistance in the sedimentation. When the resistance is equal to the effective weight of the particles, the particles will reach a maximum speed, namely the limit settling velocity. The limit speed is related to the particle size and concentration. If it is between the limit speed of the isolated particles, the fluid upwardly has a value in speed, which can make the particles divided into the downstream- movement particles and the countercurrent-movement particles. This is the basis for the hydraulic classification of the separated particles.
The experts of Henan Hongxing Mining Machinery have done a lot of experiments on the grading operations by using the gravity as the separating force. In the hydrocyclone operations, the centrifugal force can be used as the separating force.
The whole structure of the rake classifier and the spiral classifier is similar. The upper part of the rake is hung, while the lower part sinks in the pulp. The eccentric movement can be used to make the rake move certain distance from the slant. Then you can lift the rake to return to the original position. With the repetitive motion, the sand will be slowly transported to the discharging end from the slope. The motion mechanism system is composed by the crankshaft, eccentric and connecting rod. The lifting height of the rake is usually 90% to 95% of the height of the rake plate. There are one to six rakes. The standard width of the single rake is 1200mm or 1500mm. 
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Introduction and Role of Jaw Plate of Jaw Crusher

The fixed crushing plate on the front wall of the rack is installed by the countersunk bolts, most of which are vertically positioned. The movable jaw is installed with a tilt angle of 15 ° to 25 °. On the surface of the movable jaw, we can install the moving jaw plate through the countersunk bolts. The jaw plate plays very important role in the jaw crusher machine. It has the following roles.
First, the jaw plate used as the wearing parts which can be replaced can prevent the body of the moving jaw and chassis from wear and tear. Second, the jaw plate can impose force on the materials to crush the materials. Since the jaw plate directly contact with the materials, the jaw plate bears great crushing force. In addition, there is very strong friction between the jaw plate and the materials. As a result, the jaw plate should be made of the materials with high strength and wear-resistant properties. Usually, the jaw plate is made of the high manganese steel containing 12% to 14% manganese. The jaw plate of the small jaw crusher can be casted by the white cast iron.
The surface of the jaw table is often casted in triangle shape or wavy shape and forms a longitudinal groove to help the materials crushed can discharge materials along the longitudinal grooves. During the installation process, the teeth peak of the movable jaw plate should aim at the tooth valley of the fixed jaw plate to impose the extrusion, split and bending action on the materials to increase the crushing effect. The angle of the tooth peak of the jaw plate is generally 900 to 1200 and the ratio between the tooth height and tooth pitch is 1/2 to 1/3.
The attrition of the various parts of the jaw plat is uniform. Usually, the lower part of the jaw plate is worn fast. The attrition of the fixed jaw plate is faster than the attrition of the movable jaw plate. In order to extend the service life of the jaw plate, the jaw plate is often made to vertically symmetrical shape. 

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Running Process Parameters of Rotary Kiln Incinerator

The hazardous waste has some of the characteristics that distinguish it from other wastes. We tend to take advantage of these features to differentiate and distinguish whether a particular non-physical waste belongs to the hazardous waste. The hazardous waste refers to the waste which contains one or more hazardous substances or in which the various components after the interaction can generate the harmful substances. The hazardous waste is toxic, flammable, reactive, infectious, corrosive and radioactive. According to the definition of the hazardous waste, some waste is a hazardous waste as long as it has one or more hazardous characteristics. The so-called hazardous characteristics identification method is to test the nature of the waste according to certain criteria to distinguish whether it is a hazardous waste. There are a wide variety of hazardous characteristics of the hazardous waste, so it is difficult to be measured one by one. From the practical point of view, we can choose the corrosivity, reactivity and the toxicity of the waste for the identification.
The largest danger of the hazardous waste on the environment and human is the impact of the heavy metal on human health and the environment. In addition, the highly toxic organic pollutants namely the dioxin and others generated from the waste with atmosphere in the incineration process also has serious impact on the human and the environment. As a result, we should pay special attention to the two aspects. The running process parameters of the rotary kiln incinerator are the main parameters to directly affect the effects of hazardous waste incineration.
According to the hazardous waste disposal regulations, the physical and chemical characteristics of the different types of hazardous waste have different requirements on the processing parameters on the rotary kiln. When we design the new test station, we should try to improve the temperature of the rotary kiln and increase the cooling rate of the flue gas to effectively control the dioxin.
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