Repair and maintenance knowledge of disc screen

Preface: As an important screening equipment, the disc screen plays a key role in the fields of sand, gravel, concrete processing, garbage classification, etc. In order to ensure the long-term stable operation of the disc screen, maintenance and maintenance work is essential. The following is a detailed article on the maintenance and maintenance of the disc screen, aiming to provide comprehensive guidance and suggestions.

A. Maintenance of disc screen

disc screen

1. Mechanical failure maintenance

During the operation of the disc screen, the disc screen may encounter various mechanical failures, such as bearing damage, gear wear, and drive shaft breakage. The occurrence of these failures is usually related to factors such as the quality of the equipment, the use environment, and the operation method.

Bearing damage: The bearing is an important component of the disc screen, which bears the role of support and rotation. When the bearing is damaged, it will cause problems such as poor operation of the equipment and increased noise. At this time, it is necessary to stop the machine in time for inspection and replace the damaged bearing. When replacing the bearing, the product of the same model and specification as the original bearing should be selected, and ensure that it is installed correctly.

Gear wear: Gear wear is one of the common faults of the disc screen, which is usually manifested as increased gear clearance, increased noise, and reduced transmission efficiency. For gears with severe wear, they should be replaced in time. When replacing the gears, ensure that the meshing clearance of the gears is reasonable to avoid abnormal operation of the equipment due to excessive or too small clearance.

Drive shaft fracture: Drive shaft fracture is usually caused by long-term operation of the equipment, excessive load or material problems. When the drive shaft breaks, the equipment will not operate normally. At this time, it is necessary to replace the broken drive shaft and check whether there are problems with other related components.

2. Electrical fault repair

The electrical system of the disc screen includes components such as motors, control cabinets, sensors, etc. The failure of these components may cause problems such as failure to start and abnormal operation of the equipment.

Motor failure: The motor is the power source of the disc screen. When the motor fails, the equipment will not operate normally. Common motor failures include motor burnout, motor overheating, etc. For motor failure, the machine should be stopped and checked in time, and the damaged motor should be replaced or repaired. When replacing or repairing the motor, ensure that the model and specifications of the motor are the same as the original motor, and ensure that the motor wiring is correct.

Control cabinet failure: The control cabinet is the control center of the disc screen, responsible for the start, stop, speed regulation and other functions of the equipment. When the control cabinet fails, the equipment will not operate normally or operate abnormally. For control cabinet failure, check whether there are problems with the circuits, components, etc. in the control cabinet, and replace the damaged components or repair the circuits in time.

Sensor failure: The sensor is an important component of the disc screen, which is used to detect the operating status of the equipment, material flow and other information. When the sensor fails, the equipment will not operate normally or operate abnormally. For sensor failure, check whether the wiring and installation position of the sensor are correct, and replace the damaged sensor in time.

3. Other fault repairs

In addition to mechanical and electrical failures, the disc screen may also encounter other faults, such as screen blockage, screen plate wear, etc.

Screen blockage: Screen blockage is one of the common faults of the disc screen, usually caused by excessive material humidity, small screen holes or aging of the screen. For screen blockage, the screen should be stopped in time to clean the screen to ensure the smooth flow of the screen. When cleaning the screen, avoid using hard objects to scratch the surface of the screen.

Screen plate wear: The screen plate is an important component of the disc screen, which is used for screening and conveying materials. When the sieve plate is worn, it will lead to problems such as reduced screening efficiency and poor material conveying. Severely worn sieve plates should be replaced in time. When replacing the sieve plate, make sure that the model and specifications of the sieve plate are the same as the original sieve plate, and make sure that the sieve plate is installed in the correct position.

B. Maintenance of disc screens

disc screen

1. Daily cleaning

Daily cleaning is the basic work of disc screen maintenance, including cleaning dirt, dust and concrete residues on the surface of the equipment.

Equipment surface cleaning: Regularly use soft water and professional cleaning agents to clean the surface of the equipment, and avoid using water containing chemicals such as acids and alkalis. When cleaning, be careful not to splash water into the inside of the equipment to avoid damaging electrical components.

Screen cleaning: Regularly clean the material residue and blockages on the screen to ensure the smooth flow of the screen. You can use a bristle brush or air gun for cleaning, but avoid using hard objects to scratch the surface of the screen.

2. Lubrication and maintenance

Lubrication and maintenance are an important part of disc screen maintenance, including lubricating bearings, gears and other components.

Bearing lubrication: Regularly add an appropriate amount of lubricating oil or grease to the bearing to ensure smooth operation of the bearing. When adding lubricating oil or grease, be careful not to add too much or too little to avoid affecting the lubrication effect.

Gear lubrication: For gears that need lubrication, an appropriate amount of lubricating oil or grease should be added regularly. When adding lubricating oil or grease, pay attention to the meshing clearance of the gears and the type and specification of the lubricating oil.

3. Component inspection and replacement

Component inspection and replacement is an important task in the maintenance of the disc screen, including checking the wear of components such as bearings, gears, and transmission shafts, and replacing damaged components in time.

Bearing inspection and replacement: Regularly check the operation and wear of the bearings, and replace the bearings with severe wear in time. When replacing bearings, products of the same model and specification as the original bearings should be selected, and ensure that they are installed correctly.

Gear inspection and replacement: Regularly check the meshing and wear of the gears, and replace the gears with severe wear in time. When replacing gears, ensure that the model and specification of the gears are the same as the original gears, and ensure that the meshing clearance of the gears is reasonable.

Drive shaft inspection and replacement: Regularly check the operation and wear of the drive shaft. Drive shafts with cracks, deformation and other problems should be replaced in time. When replacing the drive shaft, ensure that the model and specification of the drive shaft are the same as the original drive shaft, and ensure that the installation position of the drive shaft is correct.

4. Electrical system inspection and maintenance

Electrical system inspection and maintenance is an important part of disc screen maintenance, including checking the operation and wiring of components such as motors, control cabinets, and sensors.

Motor inspection and maintenance: Regularly check the operation and temperature of the motor. For abnormal motors, the motor should be stopped for inspection and repair in time. When repairing the motor, it should be noted that the model and specification of the motor are the same as the original motor, and ensure that the wiring of the motor is correct.

Control cabinet inspection and maintenance: Regularly check whether there are any problems with the circuits, components, etc. in the control cabinet, and replace damaged components or repair the circuits in time. When checking the control cabinet, pay attention to whether the wiring and grounding of the control cabinet meet the requirements.

Sensor inspection and maintenance: Regularly check whether the wiring and installation position of the sensor are correct, and replace damaged sensors in time. When replacing the sensor, ensure that the model and specifications of the sensor are the same as the original sensor, and ensure that the sensor is installed in the correct position.

disc screen

5. Whole machine inspection and debugging

The whole machine inspection and debugging is the last step in the maintenance of the disc screen, including checking the overall operation of the equipment, adjusting the operating parameters of the equipment, etc.

Whole machine operation inspection operating parameters: adjust the equipment: stop the machine according to the actual operation of the equipment, and adjust the operation of the whole machine. Check the operation of the equipment, including the replacement of the operation parameters, such as the speed of the equipment, whether the amplitude is stable, and whether the noise is too large to ensure the operation of the equipment. The effect should be timely for the equipment that has reached the best abnormal state. Stop the machine for inspection and maintenance

PS: The maintenance and maintenance of the disc screen is the key to ensure its long-term stable operation. In terms of maintenance, corresponding maintenance measures should be taken for different types of faults; in terms of maintenance, daily cleaning, lubrication maintenance inspection, component inspection and maintenance, and whole machine inspection and debugging should be done well. Through scientific maintenance and maintenance measures, the service life of the disc screen can be extended, the operating efficiency and screening effect of the equipment can be improved, and greater economic and social benefits can be created for the enterprise. For the repair and maintenance of disc screens, the training and education of operators should be strengthened to improve their operating skills and safety awareness to ensure the correct use and maintenance of the equipment. At the same time, a complete equipment management system and maintenance plan should be established to regularly inspect and maintain the equipment, timely discover and solve potential problems, and ensure the normal operation and service life of the equipment.

Author:Fiona Fan

Fiona Fan is a contributor to the blog and news column of the Zhongcheng Machinery website. She has several years of work experience in the machinery industry, has a deep understanding of crushing machinery and screening equipment, and shares useful knowledge about environmental protection machinery.