Date: Apr. 15, 2022
Mine circular vibrating screen is a new type of vibrating screen, which has the characteristics of reasonable structure, high screening efficiency, and low vibration noise. So how does the mining circular vibrating screen work? What are the advantages?
Mine circular vibrating screen is mainly composed of a screen box, exciter, suspension (or support) device, and motor. The motor drives the main shaft of the exciter to rotate through the V-belt, and the screen box vibrates due to the centrifugal inertial force of the unbalanced weight on the exciter. By changing the eccentric weight of the exciter, different amplitudes can be obtained.
When the mining circular vibrating screen is working, the motor drives the rotary motion of the V-belt and the main shaft of the exciter first. Due to the centrifugal inertia force of the unbalanced weight on the exciter, the screen box is forced to vibrate. The material on the screen surface will be thrown up by the upward force, and then fall back to the screen surface after moving forward for a certain distance. This repeated movement completes the screening process of the material. In addition, the amplitude of the vibrating screen can be adjusted by changing the weight and position of the counterweight.
1. The mining circular vibrating screen adopts a cylindrical eccentric shaft exciter and a partial block to adjust the amplitude. The material screen has a long flow line and a large number of screening specifications. It has a reliable structure, strong excitation force, high screening efficiency, and low vibration noise. , Durable, easy to maintain, safe to use, and so on.
2. The mining circular vibrating screen drive screen machine adopts the petal-shaped coupling and flexible disc coupling with simple structure and easy manufacture and maintenance, which overcomes the defect that the universal coupling is easily damaged; the vibrator adopts the block eccentric type Structure, simple structure.
3. The mining circular vibrating screen has a strong processing capacity, high screening efficiency, reasonable technical parameters, high structural strength and rigidity, reliable operation, low noise, and convenient maintenance.
1. The spring of the circular vibrating screen must be in a vertical state, and the contact surface between the upper support of the spring and the spring must be in a horizontal state. After adjustment, use bolts to fix the upper spring support on the trunnion of the screen box, and then spot-weld it into one.
2. Position the driving direction of the circular vibrating screen, stand at the feeding end, observe the motor position facing the material flow direction, and get the left or right drive. When the driving direction needs to be changed, remove the vibrator pulley from the balance wheel, re-install it on the other side balance wheel and tighten it.
3. Make sure that the tension of the V-belt has a sufficient amount of adjustment, and ensure that the grooves corresponding to the two belt pulleys are in one-to-one correspondence in their respective planes.
4. After the installation and adjustment of the circular vibrating screen, the no-load test run should be carried out for no less than 2h. It is required to run smoothly, without abnormal noise, the amplitude and motion trajectory meet the requirements, and the high temperature of the bearing should not exceed 75℃.
5. After the no-load test run is qualified, it can be put into the load test run, and the load test run time can be carried out according to the process test run requirements.
6. The vibration exciter must be rotated by hand (or other methods) before the test run of the circular vibrating screen. The rotation should be flexible, and the machine can be officially started only when there is no jamming phenomenon.
If the above aspects are done well, the circular vibrating screen can be installed well, which will be of great help to the use of the circular vibrating screen later, and can avoid the problem of the circular vibrating screen due to poor installation.
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