Shaftless drum screen can be customized with gear drum sorting machine

Introduction to drum screen

Drum screen is a new generation of screening equipment, mainly composed of inlet and outlet, motor, reducer, frame, drum device, etc. It can be used in industries such as chemical industry, coking plant, mining, power plant, building materials, metallurgy, etc. The drum device is installed obliquely on the frame and is sealed by a sealed isolation cover to prevent contamination.

Shaftless drum screen can be customized with gear drum sorting machineAnalysis of the advantages of drum screen

1. Using a specially designed sieve with high screening efficiency and long service life;

The installation inclination angle of the drum screen produced by Weiming is small, and the screen holes are not easily blocked;

3. Simple structure and easy maintenance; Smooth operation with low noise;

4. The drum screen equipment occupies a small space and is convenient for process layout.

Shaftless drum screen can be customized with gear drum sorting machineworking principle

The drum device is installed obliquely on the frame. The electric motor is connected to the drum device through a coupling via a reducer, driving the drum device to rotate around its axis. After the material enters the drum device, due to the tilt and rotation of the drum device, the material on the screen surface flips and rolls, causing qualified materials (undersized products) to be discharged through the discharge port at the bottom of the rear end of the drum, and unqualified materials (undersized products) to be discharged through the discharge port at the tail end of the drum. Due to the flipping and rolling of materials inside the drum, materials stuck in the sieve holes can be ejected to prevent blockage of the sieve holes.Drum sand screening machine, drum screening machineThe principle and structure of the drum screen are almost the same, which is reflected in people's understanding and naming of it

performance comparison

Screen type project cage drum screen flat vibrating screen cantilever vibrating screen

Coal adaptability: Suitable for various types of coal clocks. Only suitable for coal clocks with certain moisture and no impurities. Only suitable for coal clocks with certain moisture and no impurities

The coal feeding methods are flexible and diverse, and can be designed according to the actual situation to only adapt to belts and funnels. The fixed size of the coal inlet is only suitable for belts and funnels, and the size of the coal inlet is fixed

Screening method, rotation, vibration, vibration

The screening efficiency is as high as 95percentageAbove 10-70percentage, depending on the coal quality and moisture content, set at 10-80percentageDepending on the coal quality and moisture content

Operation and maintenance

The cage type drum screen operates reliably and requires minimal maintenance. The following is a brief description of several issues that should be noted during operation:

1. When driving, it is necessary to first turn on the cage type drum screen, and then turn on the feeding equipment; The opposite is true when parking;

2. During the first three days of operation, the fasteners of the cage type drum screen should be checked daily, and any looseness should be promptly tightened. In the future, regular (weekly or bi monthly) inspections and handling of the fasteners of the cage type drum screen can be carried out;

3. The bearing seat and gearbox should be regularly checked for lubrication, and oil should be added and changed in a timely manner. The main shaft bearing adopts No.2 lithium based grease. Normally, the grease should be added every two months, and the amount should not be too much, otherwise it may cause the bearing to overheat. All bearings should be cleaned and inspected once a year.

4. When restarting equipment that has been out of service for more than 30 days, the motor insulation should be tested by shaking to avoid motor burnout.