How to measure the maximum discharge particle size of crusher

1. After the cone crusher works for a period of time, the wear of the moving cone liner and the fixed cone liner leads to the graal increase of the discharge port. In order to ensure the proct size, it is necessary to continuously adjust the size of the ore outlet. The adjustment of the discharge port of the cone crusher is realized by means of the serrated thread rising and falling cone liner between the adjusting ring and the supporting sleeve. In order to make the tooth thread lubricated and easy to adjust and disassemble, the thread must have enough clearance. After the adjustment, the steel wire shot put method can be used to measure the size of the ore outlet from the crushing chamber to the ore outlet. It is enough to measure one point for the processed new liner, and 6-8 points for the unprocessed or worn liner. After the discharge port meets the size requirements, the adjusting ring shall be locked by the locking cylinder, otherwise it is not allowed to start.

2. Slag crusher
what kind of slag to crush

3. Jaw crusher will have a process of extrusion and opening when it works. In short, extrusion is mainly crushing, opening, discharging and blanking. In the discharging process, a part of the materials larger than the width of the discharging port will be discharged together. This is also the basic principle of cone breaking. Therefore, the maximum proct particle size of crusher discharge is usually calculated by multiplying the width of discharge port by a coefficient.

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5. The gap between the impact plate and the hammer head of hammer crusher is too large, the impact density of the hammer on the material is low, and the impact particle size received by the material is not enough. When the material density is large, and the gap between the impact plate and the hammer head is too large, the hammer can not crush the material well, and the proct will naturally proce coarse particles. The reasons for the large particle size are as follows: (1) the gap between the hammer and the impact plate is too large 2) Wear of plate hammer 3) When the rotor speed is too low, the clearance between the impact plate and the hammer head is 15-20 mm. To solve the problem of too large discharge particles of hammer crusher, the solution can be found from the above reasons. The size of feed particle size and block size will also have a certain impact on the size of discharge. When the feed particle size is large and the feed flow is large, the crushing cavity of impact crusher will be full. In order to avoid blocking phenomenon and increase the load of equipment, the material will be discharged from the machine body before it is fully broken in the crushing cavity; The hardness of the crushed material will also affect the size of the crushing particle size of the impact crusher. When the crushing particle size is larger, the work efficiency is higher. Therefore, according to the actual needs, the particle size of the discharge material should be adjusted reasonably.

6. The particle size characteristics of the crushed procts depend on the properties of the crushed materials, first of all its hardness. The proct size curve not only reflects the working performance of the crusher and the proct characteristics under various outlet widths, but also provides a reliable basis for the adjustment of the outlet of the crusher. This kind of curve expressed by relative particle size (the ratio of ore block size to ore outlet) is very useful. From the curve, we can find out the maximum particle size of the proct. We can find out the content of sodium in the proct which is larger than the particle size grade (resial percentage) of the ore outlet. We can calculate the yield under any particle size and the particle size under any yield. We can also determine the size of the ore outlet according to the yield required by the process.

7. Adjust the particle size of the crusher is mainly to rece the material into the block, in addition to timely replacement of the crusher wear accessories

8. 1、 Crusher overview
crusher is a kind of equipment that uses a certain mechanism to crush large materials into small pieces by one or several force application methods. It is a kind of general equipment widely used in instrial proction. According to its working principle, process characteristics and structure, crushers can be divided into swing crusher, swing crusher, rod crusher and impact crusher< Second, the crusher load detection
it is a mineral processing test technology to detect the actual amount of ore passing through the crushing chamber of the crusher instantaneously. The load of crusher not only affects the particle size and energy consumption of crushing procts, but also affects the normal operation of crusher, so the load of crusher should be detected in time< The detection of crusher outlet is also one of the contents of mineral processing test technology. The purpose of this test is to timely adjust and control the size of the crusher discharge port, so as to effectively control the particle size of crushing procts and reasonably balance the load of each section of crusher< 4. Crusher and process control
1. Sequence control of crusher and auxiliary equipment
2. Automatic control of metal object taking out
3. Automatic control of ore bin level
4. Automatic control of ore separation trolley
5. Automatic adjustment of ore outlet of crusher
6. Load control of crusher
7. Load control of multi-stage crusher and ore outlet
5 The mathematical model of crusher
the mathematical model of crusher is a mathematical expression describing the quantitative relationship between the discharging and feeding particle size characteristics of crusher. In the crusher, the material is discharged after a short stay in the crushing chamber, so the crushing process can be regarded as a static process, which can be described by a time independent matrix model< 6. Crushing efficiency
crushing efficiency is a quantitative index to evaluate the process performance of crusher and crushing process. It can guide the determination of crushing process parameters, select the best working system, improve the structural parameters and design of crusher, and decide the adoption of new technology.

9. Jaw crusher e to improper use will often cause the phenomenon of crusher crash, therefore, in the crushing of materials, we must pay attention to the uniformity of blanking, and the hardness of the material is appropriate, if it is too hard, you can add a process
What are the main factors that affect the work of jaw crusher

in general, the main factors that affect the work of jaw crusher are engagement angle and revolution

the bite angle is the angle between the moving jaw and the fixed jaw. According to the calculation, the maximum engagement angle can reach 32 degrees. In practice, it is less than 25 degrees, generally about 1820 degrees. If the mesh angle is too large, the ore in the crushing chamber will be extruded upward and the sand proction line will be damaged, which will hurt people or damage other equipment. At the same time, with the increase of mesh angle (crushing ratio), the proctivity will decrease. Adjusting the size of the ore outlet will change the size of the engaging angle. In real life, according to the requirements of ore size to adjust the size of ore outlet. Therefore, it is reasonable to enlarge the discharge port as much as possible under the requirement of ensuring the proct size. The size of ore outlet can be adjusted by adjusting the block. When adjusting the size of ore outlet, we should pay attention to the relationship between crushing ratio and proctivity

in a certain range, increasing the rotation number of eccentric shaft can improve the proction capacity of crusher, but also increase the power consumption of crushing unit weight ore. If the rotating speed is too high, the crushed ore in the crushing chamber will not be discharged in time, resulting in blockage. On the contrary, the proction capacity will be reced and the power consumption will be increased. Therefore, the jaw crusher should have the most suitable rotating speed

the eccentric shaft, connecting rod, movable jaw plate, shaft and lining plate of jaw crusher are the main wear parts, which should be lubricated and replaced frequently.

10. Jaw crusher belongs to coarse crushing equipment, which is mainly used for crushing stone and ore, such as river pebble, cobble, granite, basalt and other hard materials. After the jaw crusher has been used for a period of time, with the constant wear of the toothed plate, the ore outlet will become larger and the particle size of the finished proct will become coarser. In order to ensure that the grain size of finished procts meet the requirements of customers, it is necessary to adjust the discharge port to make it meet the factory standard. Follow Zhongke machinery to see the adjustment method of jaw crusher discharge particle size:
in order to obtain qualified proct particle size, operators need to regularly adjust the size of jaw crusher equipment discharge port. There are mainly two ways to adjust the ore outlet:
1. Put a group of gaskets between the back of the support seat of the rear thrust plate and the rear wall of the frame, increase or decrease the number of gaskets or change their thickness, so as to achieve the purpose of adjusting the ore outlet. This method is compact in structure and reliable in adjustment. It is widely used in large and medium jaw crushers
2. Two wedges placed between the back seat of the thrust plate and the frame are suitable for small jaw crushers
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