The problem of the dewatering screen not conveying material may be caused by a variety of factors. The following is an analysis of the causes and corresponding solutions:
Analysis of the causes of the problem that the dewatering screen does not discharge materials
1. Screen box installation issues:
• Insufficient levelness: The screen box of the dewatering screen must be kept horizontally on the same horizontal plane when installed. If the horizontal level of the screen box is not balanced, the screen surface will shift to a certain extent and the material will not flow in a straight line.
• Screen plate installation angle problem: The main part of the screen plate of the dewatering screen is 5° upward in the horizontal direction, and the rear part of the screen plate is at an angle of 45° with the main plate. If the installation angle is wrong, it will affect the vibration intensity, resulting in material failure. .
2. Support spring problem:
• Excessive rigidity: When the rigidity of the support spring of the screen box is too large, it is easy for the material to be subject to excessive excitation force, resulting in severe vibration and affecting the normal flow of the material.
Spring damage: If the support spring is damaged, it will also cause uneven stress on the material and cause abnormal flow.
3. Screen problem:
• Screen damage: After long-term use, the screen may become damaged, causing the material to fail to flow normally on the screen surface.
• Screen holes are clogged: The feed speed is too fast or the feed is uneven, resulting in an overly thick layer of material on the screen, causing the screen to be clogged and affecting the dehydration effect.
4. Vibration motor problems:
• Uneven amplitude: The amplitude of the vibration motor is inconsistent, resulting in uneven stress on both sides of the screen surface, affecting the flow of materials.
5. Operation and maintenance issues:
• Uneven feeding: Too much or too little feeding will cause the screen box load to be unbalanced, affecting the screening effect of the material.
• Lack of maintenance: Long-term operation without necessary maintenance, such as loose fastening bolts, insufficient lubrication, etc., will also affect the normal operation of the dewatering screen.
Solution for dewatering screen without material leakage
1. Adjust the screen box installation:
Ensure that the screen box is horizontally level with the same horizontal plane during installation, and adjust the horizontal horizontal plane to keep the screen box level.
Check and adjust the installation angle of the screen plate to ensure that its main part is 5° above the horizontal direction and the rear part is at an angle of 45° to the main plate.
2. Replace or adjust the support spring:
• Select a support spring with a certain degree of toughness as the support for the linear vibrating screen to avoid damage to the support spring due to excessive rigidity.
Adjust the support spring and replace the damaged spring to ensure the elasticity and stability of the spring.
3. Replace the screen:
Check the condition of the screen regularly and replace or clean it promptly if it is found to be damaged or clogged.
When cleaning the screen, you can use high-pressure water guns and other tools to flush it to ensure that the screen holes are unobstructed.
4. Adjust the vibration motor:
Ensure that the amplitudes of the two vibration motors are consistent, which can be achieved by adjusting the eccentric block of the vibration motor.
Regularly check the operating condition of the vibration motor to ensure it is working properly.
5. Optimize operation and maintenance:
• Keep the material fed evenly and continuously. Do not feed too much or too little, causing the load of the screen box to be unbalanced.
• Perform regular maintenance and inspection on the dewatering screen, tighten bolts, add lubricant, clean up material accumulation, etc.
• Strengthen the training and management of operators to improve their operational skills and sense of responsibility.
Through the implementation of the above measures, the problem of the dewatering screen not conveying material can be effectively solved and the working efficiency and service life of the dewatering screen can be improved.
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