3 tips for rotary vibrating screen installation
No matter what kind of mechanical equipment it is, there may be various failure problems when it is running. Most of the failure problems are basically caused by incorrect installation. Improper installation will also cause The abnormal operation of mechanical equipment is a relatively common failure problem and the main reason for the problem. Therefore, the correct installation method is very important.
Adjustment of the installation level
Adjustment of the installation level of the vibrating screen: Whether the vibrating screen is installed in a horizontal plane is very important to the operation of the screening equipment.
When installing and leveling, use the bottom surface of the four support devices as the benchmark, or measure the screen surface with a level gauge, and use the pad under the support spring base to adjust until it meets the installation standard.
Torsional Vibration Treatment
Torsional Vibration Treatment of Screen Plates on Both Sides of Rotary Vibrating Screen
Most the cases of torsional vibration are the vibrating screen of the double-box vibration exciter. The main reasons are as follows:
The included angles of the eccentric blocks of the exciters on the sieve plates on both sides are different
There are 3 possibilities:
- The eccentric block angle is not correct.
- One side of the included angle of the eccentric block is incorrect.
- The wrong angle of the eccentric block is caused by the reverse installation of the gear reference surface.
The 2 box exciters are connected incorrectly through the drive shaft.
The above two situations are the main reasons for the torsional vibration of the sieve.
When the torsional vibration of the rotary vibrating screen occurs, the abnormal operation can be judged by the observation method and the marking method. After finding the source of the torsional vibration, it can be eliminated by adjusting to the normal angle and position.
How to adjust the upper and lower weights of the rotary vibrating screen
By changing the phase angle of the upper and lower weights, the movement trajectory and residence time of the materials on the screen can be changed. In order to make the screen machine adapt to the separation state required by various materials, such as the distribution of materials, processing capacity, separation efficiency, net passing rate, and other changes, it should be adjusted to the best state.
The angle of the upper hammer of the rotary vibrating screen cannot be adjusted, open the adjustment hole of the bottom barrel, loosen the fixing bolt of the lower weight, and adjust the phase angle of the upper and lower weights in the opposite direction of the discharge port according to the trajectory of the screened material. Then put a small amount of material on the screen, make the screen run, and check the movement trajectory of the screen material. If the processing parameters have reached the best effect, stop the machine and tighten the fixing bolts, and the adjustment is over (remember to tighten the fixing bolts) .
Note: Sometimes due to the influence of the specific gravity of the material, humidity, stacking inclination angle, and other parameters, it is impossible to adjust the phase angle successfully at one time, so the user should have sufficient patience to adjust so that the screen machine can play its due high efficiency.
Adjustment of additional weights.
Additional weight is installed on the first test of the upper and lower weights. Its function is to increase the exciting force of the sieve machine. According to the number of layers of the user’s sieve machine and the specific gravity of the material, the exciting force can be increased or decreased, and the number of additional weights can be increased or decreased. The screen machine can achieve the best screening effect.