Uniformity of feeder
Vibrating feeder: if the ore is evenly broken, small in size and good in fluidity, swing type or wave type can be selected. It is suitable for elliptical vibration type and directional vibration type
double mass vibrating feeder: the principle of double mass near resonance inertial vibration is adopted. Single row or double row shear rubber springs are arranged at the top and bottom, and the lower pressing plate is connected to the balance body by bolts, and then the left and right side plates are connected with the groove body. It has compact structure, stable starting under constant pressure, and is not affected by the load and jamming of the tank material. The feeding particle size (0-850mm) is large (8-1800t / h). It can be equipped with stepless frequency converter to realize frequency conversion feeding and batching, and remote microcomputer operation and control
Chinese ancient currency is relatively rare. Like shells and stones of ancient times, the oldest are some of the food they beat. Then there are coins of various shapes made of copper. Next is our world fixed currency gold and silver. There is also the paper money that we made in Song Dynasty
China is a country with 5000 years of cultural history. So our country has the most exotic currencies. In the Yellow River Valley in ancient times, we didn't have money, we all hunted together, and then we went back to our houses to share our prey. So money at that time was food, that is, the food of other animals was exchanged for the food of other animals. With the increase of the number of people living in groups, our currency has been replaced with shells and more beautiful stones, which is a manifestation of the progress of life. When people know how to dress up, they will wear shells in strings around their necks. For example, the first Chinese dragon unearthed in Puyang City, Henan Province, is a dragon shaped pattern with shells{ RRRRR}with the development of time, the initial country was formed, and the country unified its currency. Our currency became a copper currency. There are many shapes of this kind of currency, such as round, concentric circle, square, knife and so on. After that, gold will appear in our vision. Yuanbao appeared in our country, which is the unique currency of our country. In the Song Dynasty, our country was highly developed, and the circulation of money was very large. In some places, there will be banknotes, which are made by many businesses together. This is a pioneering work of our country, and it has also influenced the world. Our country is still using paper money as our common currency. The history of currency is a development history of our country. The development of currency represents the development degree of our country. All kinds of exotic currencies represent the brilliant development history of our country
The types of crushers are hammer crusher, jaw crusher, cone crusher, impact crusher and so on, each type of installation is different! The following is my jaw crusher hammer crusher as an example to give you a detailed talk! Hope to help you again
and manufacturers generally provide door-to-door installation and debugging services, you don't have to worry about this! Most of the crusher manufacturers will be considerate service! I have been engaged in crusher sales for nearly 10 years, and I generally provide 100% satisfactory service to customers. Door to door installation, training, regular door-to-door service, etc
jaw crusher installation, commissioning and use of maintenance full analysis
jaw crusher (jawbone) in the process of installation and commissioning, often e to operational errors or unqualified commissioning to the subsequent proction process buried unsafe risks. How to install and debug jaw crusher to avoid unnecessary loss in use? Global crusher network in the practical application of customer feedback information, problems, summed up the following points, for your reference
During the no-load test run of jaw crusher, the temperature rise of the bearing shall not exceed 30 ℃ when the jaw crusher runs continuously for 2 hours (2) all fasteners of jawbone machine should be firm without loosening (3) flywheel and Geneva run smoothly (4) all the friction parts of the jawbone machine have no scratch, chipping, grinding and abnormal sound (5) the adjustment device of jaw crusher discharge port should be able to ensure the adjustment range of discharge port (2) on load test run of the crusher (1) the crusher shall not have periodic or significant impact sound (2) the maximum feeding particle size should meet the design requirements (3) the temperature rise of the bearing shall not exceed 30 ℃ after continuous operation for 8h (4) the processing capacity and proct size of crusher should meet the design requirements There was no obvious movement between the adjusting seat and the rack ear seat First, carefully check whether the lubrication of the bearing is good and whether there is enough grease at the joint of the thrust plate (2) carefully check whether all fasteners are tight (3) carefully check whether the drive belt is in good condition. If it is found that there is damage, it should be replaced in time. When there is oil stain on the drive belt or pulley, the oil stain should be wiped clean with a rag (4) check whether the protective device is in good condition and eliminate the unsafe phenomenon in time (5) check whether there is ore or debris in the crushing chamber. If there is ore or debris, it must be cleaned to ensure that the cavity of the crusher starts (6) check whether the jacking bolt is returned, whether the gasket pack is compressed, and whether the T-bolt is tightened Inspection items before starting of jaw crusher (2) the jaw crusher can only be started without load (3) before starting, the alarm must be given by ring or signal in advance (4) stop operation immediately if abnormal phenomenon is found after starting. After finding out and eliminating the abnormal conditions, the crusher can be restarted First, the jaw crusher can be put into proction after normal operation (2) the materials to be crushed should be evenly added into the crusher chamber, and side feeding or full feeding should be avoided to avoid unilateral overload or bearing overload (3) ring normal operation, the bearing ground temperature rise should not exceed 30 ℃, and the maximum temperature should not exceed 70 ℃. When the above temperature is exceeded, stop the vehicle immediately, find out the cause and remove it (4) stop feeding before stopping, and turn off the power after the materials in the crushing chamber are completely discharged (5) when crushing, in case of shutdown e to material blockage in crushing chamber, the power supply shall be turned off immediately, and the material in crushing chamber shall be cleaned before starting again (6) when one end of jaw plate is worn out, it can be turned around for use After the jawbone machine has been used for a period of time, the tightening Bush should be re tightened to prevent the loosening of the tightening bush from damaging the machineall kinds of mechanical equipment, no matter the workload is large or small, should take the maintenance as the focus of maintenance. Only when the equipment is properly maintained can it give full play to its maximum efficiency. The easily damaged parts of jaw crusher are relatively few, so it is necessary to pay attention to the matters of crushing materials in order to eliminate the major accidents in the operation of proction machinery. Pay attention to the maintenance and use of machinery specification, put an end to the accident. Avoid causing unnecessary losses to you
precautions for installation and commissioning of hammer crusher
(1) because the hammer crusher has a certain frequency and strength of vibration ring normal use, the user should strictly follow the foundation drawing provided by the manufacturer ring installation to prevent other problems. In order to save trouble, some units directly put the hammer crusher on the precast slab, exposed several steel heads and welded together with the bottom plate of the hammer crusher to cope with the use. In this way, they often deceive others in vain, but regret when there is an accident. If it is necessary to use precast slab, the safety factor should be increased according to the parameter characteristics of hammer crusher, and the precast slab should be customized after careful calculation
(2) when installing, pay attention to align the motor pulley and hammer crusher pulley with proper tightness. It should be considered that the working environment should be kept dry and ventilated to prevent rain, snow and st from eroding the motor. There should also be protective cover, overload protector and other protective facilities to ensure the safety of equipment and personnel
(3) when installing the hammer crusher, if necessary and the site conditions permit, the feeding device should be installed to ensure the uniformity and continuity of feeding, and prevent the aggravation of vibration of the whole machine caused by partial feeding or more or less feeding, high temperature rise of bearings on one or both sides, motor overload, etc
(4) when the hammer crusher is installed, it is necessary to install a feeding device to remove foreign matters, so as to prevent some materials that have damage to the hammer crusher from entering the hammer crusher, such as iron block and other hard materials, which will cause damage to the screen bottom, hammer head and other parts after entering the hammer crusher; Another example is: soft materials with certain toughness, such as plastic strips, block the screen bottom and wind the rotor after entering the hammer crusher, affecting the treatment effect
(1) in normal use, the operator should often check the tightness of the fasteners, the wear degree of the vulnerable parts, the resial amount of lubricating oil (grease), etc. The fastening of the fastening, the repair of the repair, the replacement of the replacement, the filling of the filling. It should be included in the "regular maintenance system" and strictly implemented. It can't be formalized and the system can't exist in name only(2) on the premise that the type of crushing raw materials has been determined, the amount of manpower and material should not exceed the handling capacity of the hammer crusher; It is not allowed to put the bulk materials that can not be processed by hammer crusher directly into hammer crusher, and the crushing device should be installed in the previous process. Otherwise, the hammer crusher will not be able to handle, and the motor, bearing or other components will be damaged
in a word, when selecting the hammer crusher, the customer should first understand the use position of the hammer crusher, the characteristics of raw materials, feed particle size, discharge particle size, processing capacity, etc. Under the condition of clear understanding of its own situation, the hammer crusher model is selected according to the process conditions. If there are special circumstances, in order to meet the requirements, we should consider whether to add the previous equipment or some auxiliary equipment
the correct installation and debugging of cone crusher and the matters needing attention, It is also a must, so how to correctly install and debug the cone crusher? The following global crusher network lists the installation and debugging steps and precautions of the cone crusher:
when installing the cone crusher, first install the frame on the foundation, calibrate the levelness, and then install the transmission shaft. Install the eccentric shaft sleeve into the frame sleeve from the upper part of the frame, and calibrate the clearance of the bevel gear. Then install the spherical bearing support, lubrication system and water seal system, insert the assembled spindle and movable cone, install the support ring, adjusting ring and spring, and finally install the feeding device
after installation, the no-load test was concted for 7-8 hours. If there is no problem, carry out the load test for 12-16 hours. At this time, the oil discharged from the oil drain pipe should not exceed 50-60 ℃
before the cone crusher starts, first check whether there is ore or other objects stuck in the crushing chamber; Check whether the width of the ore outlet is appropriate; Check whether the spring safety device is normal; Check the oil quantity and temperature in the oil tank (no less than 20 ℃ in winter); And to the water seal st-proof device water supply, and then check its drainage, and so on. After the above inspection and confirmation of the correctness of the inspection, the cone crusher can be started according to the following proceres
start the oil pump to check the oil pressure. Generally, the oil pressure should be in the range of 0.8-1.5 (kg) cm2. Pay attention to the oil pressure not to be too high to avoid accidents. For example, in a crushing workshop of an iron mine in China, the oil pressure of the cone crusher oil pump exceeds 3 (kg) cm2, resulting in a major equipment accident of the cone crusher. In addition, the water pressure in the cooler should be 0.5 (kg) cm2 lower than the oil pressure to avoid water mixing into the oil
after the oil pump runs normally for 3-5 minutes, start the cone crusher. When the cone crusher idles for 1-2 minutes and everything is normal, then start the feeder to crush the ore
the ore fed into the cone crusher should be evenly fed into the crushing chamber from the distributor, otherwise it will cause overload of the machine, premature wear of the lining plates of the movable cone and the fixed cone, rece the proction capacity of the equipment and proce uneven proct particle size. At the same time, the feeding ore is not allowed to enter the crushing cavity only from one side (surface), and the feeding particle size should be controlled within the specified range
When the ore is fed evenly, the problem of ore discharge must also be paid attention to. If the ore discharge is accumulated under the ore discharge port of the cone crusher, the movable cone may be lifted up, resulting in a major accident. Therefore, when the ore outlet is blocked, the machine should be shut down immediately to deal with it quickly In order to improve the proction capacity and rece the grinding cost, the proct size of the fine crushing cone crusher must be strictly controlled. Therefore, the operators are required to check the wear condition of the ore outlet regularly, adjust the size of the ore outlet immediately, and then measure with lead block, so as to ensure the requirements of the particle size of the broken procts In order to ensure the safety and normal proction of the cone crusher, it is necessary to pay attention to the application of the safety spring in the operation of the machine. If the spring has normal tightness, but the support ring often jumps up, it is not allowed to tighten the spring at this time. Instead, it is necessary to find out the reasons for the jump up of the support ring. In addition to entering the non broken objects, it may be caused by uneven or too much ore feeding, too small size of the ore outlet, wet ore blocking the ore outlet, etcit should be noted that in order to maintain the width of the ore outlet
the mined ore is initially crushed by jaw crusher. After crushing to a reasonable fineness, the ore is evenly sent to ball mill through elevator and feeder, and then crushed and ground by ball mill. The fine ore grinded by ball mill enters the next process: classification. The spiral classifier cleans and classifies the ore mixture according to the principle that the specific gravity of solid particles is different and the sedimentation speed in liquid is different. When the cleaned and graded mineral mixture passes through the magnetic separator, the magnetic material in the mixture is separated by magnetic force and mechanical force e to the different specific magnetic coefficients of various minerals. After preliminary separation by magnetic separator, the mineral particles are sent to the flotation machine, and different drugs are added according to different mineral characteristics to separate the required minerals from other substances. After the required minerals are separated, because they contain a lot of water, they must be initially concentrated by the thickener, and then dried by the dryer to get the dry minerals
Red Star machine is a professional mineral processing equipment manufacturer. Red Star machine can configure hematite process equipment according to the needs of users, improve proction efficiency and create greater benefits. Welcome to Hongxing machine, No.8, Tanxiang Road, Zhengzhou high tech Zone, Henan Province to purchase hematite beneficiation equipment
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Hongxing machine hematite beneficiation process:
the mined ore is initially crushed by jaw crusher. After crushing to a reasonable fineness, it is evenly sent to ball mill through elevator and feeder, and then crushed and ground by ball mill. The fine ore grinded by ball mill enters the next process: classification. The spiral classifier cleans and classifies the ore mixture according to the principle that the specific gravity of solid particles is different and the sedimentation speed in liquid is different. When the cleaned and graded mineral mixture passes through the magnetic separator, the magnetic material in the mixture is separated by magnetic force and mechanical force e to the different specific magnetic coefficients of various minerals. After preliminary separation by magnetic separator, the mineral particles are sent to the flotation machine, and different drugs are added according to different mineral characteristics to separate the required minerals from other substances. After the mineral is separated, because it contains a lot of water, it must be concentrated by a thickener and then dried by a dryer
(1) the ore must be fed in the middle of the distribution plate, and it is not allowed to directly feed the ore into the crushing chamber. Because it is easy to overload the crusher and make the liner wear unevenly
the correct ore feeding conditions are as follows:
a ore is evenly dispersed in the crushing chamber through the distribution plate< (2) the maximum feeding size of the crusher should not be equal to the size of the feeding mouth, (the maximum size of the feeding block ≤ 85% of the size of the feeding mouth), otherwise, the output of the crusher will be reced
b some other parts of the crusher are damaged
(3) the crusher is not allowed to start under load, which will cause accidents
(4) when stopping the crusher, the feeder must be stopped first, and the ore that has entered the crushing chamber must be crushed and discharged before the crusher stops
(5) when the crusher is working, the pressure of the locking system and the working condition of the hydraulic station should be checked frequently, and the problems found should be dealt with in time
2. The output of crusher
the output of crusher is related to feeding mode, feeding block size, ore discharge block size, physical and mechanical properties of ore, temperature, etc., with a wide range of changes. The output given by the manufacturer is the approximate throughput under specified conditions
3. Replacement of rolling mortar wall
the rolling mortar wall has a U-shaped screw on the adjusting ring, and zinc alloy is injected between the two to make it closely combined. When the rolling mortar wall is newly installed or replaced, after working for 6-8 hours, its fastening condition should be checked, and the U-shaped screw should be tightened again
4. Replacement of cone crushing wall
the cone crushing wall is fixed on the cone body with the cone head, and zinc alloy is cast between the two. After the newly installed or replaced cone crushing wall works for 6-8 hours, its fastening condition should be checked, and if it is loose, it should be tightened immediately
5. Gear meshing
the disc is worn e to friction, which affects the change of gear clearance. In order to ensure the normal meshing of gears, a gasket must be added on the bottom cover, and the thickness of the gasket should be equal to the wear amount of the disc
6. Bowl bearing and sealing device
when installing the bowl bearing, pay attention not to damage the oil retaining ring by the wire rope (hardwood and other objects can be used to support between the wire ropes)
ring assembly, the bearing spherical surface should be scraped to ensure that the crushing cone and bowl shaped spherical surface contact in the outer circle, and the inner ring should ensure an annular clearance of 0.35-0.5mm
the bowl shaped bearing bush is fixed on the bowl shaped bearing frame with locking pins of balsamic alloy filled around to prevent the bowl shaped bearing bush from rotating along the circumference
the bowl bearing frame and the frame body are fixed with keys (pins). If there is a gap between the bowl bearing frame and the frame body in the work, it must be handled immediately
7. The cylindrical bushing and frame body are the third transition fit. In order to prevent the rotation of the bushing, zinc alloy is injected into the upper groove of the bushing. When replacing the new bushing, it should be prepared according to the actual size of the frame body, because the long-time work and loading and unloading of the crusher will inevitably lead to the change of the fit relationship. If the clearance is too large, the bushing will break
8. Conical bushing
the taper sleeve should be lapped with the empty eccentric shaft, and zinc alloy should be injected to prevent the taper sleeve from rotating. The zinc alloy should fill all the gaps. The taper sleeve may be deformed e to hot injection of zinc alloy. Therefore, the new taper sleeve should be checked and the dimensions D1, D2 and B should be corrected in time, The spare parts should be prepared according to the actual size of the inner diameter of the eccentric sleeve to keep the original fit
9. Spring
(1) the function of spring is to protect the crusher from being damaged when the crusher enters into the unbreakable material, so the pressure of spring is compatible with the crushing force of crusher. When the crusher works normally, the spring does not move. Only when the crusher is overloaded e to the iron block falling into the crushing chamber, the supporting sleeve is lifted, and the spring is compressed
(2) when the upper part of the crusher works normally, it jumps, which is an abnormal phenomenon. We must carefully analyze the causes and take measures to eliminate them. If the compression spring is wrongly compressed, it will not work normally, but may damage the parts, because the compression spring will increase the crushing force
there are the following reasons for the beating of the upper part of the crusher:
a feeding is uneven or too much feeding
b feeding contains too much small and powdery ore or too much humidity
C the gap between the discharge ports is too small
10. The exposed rotating part of the machine should be equipped with a protective cover, which is provided by the user.