Sand washing machine equipment drum sand screen 50 sand screen sand separator shaftless drum screen drum screen

  Trommel screen
  Roller screen provides a simple, high-tech and economical solution for a variety of raw materials, and also provides optimization for subsequent beneficiation process
This method helps to reduce operating procedures, reduce investment costs and improve Gao product quality
At the same time, it allows rapid and mass processing
The treated raw materials can directly enter a variety of beneficiation equipment, such as centrifugal concentrator and spiral chute, Jig and other drum screen provide a simple,efficient and economical solution to upgrade a wide rang of material and optimize the subsequent process steps of recovery
This method of screening helps to reduce operating and investment cost and to increase product quality,while allowing rapid and large volume processing。
 
Roller screen is a kind of machinery widely used in separation technology
It controls the separation of sand and stone by controlling the particle size, and the separation accuracy is high
The cylinder of drum screen is generally divided into several sections, depending on the specific situation
The screen holes are arranged from small to large, and the screen hole diameter on each section is the same

Drum screen is mainly composed of motor, reducer, drum device, frame, sealing cover and inlet and outlet

 
Working principle: the roller device is installed obliquely on the frame
The motor is connected with the drum device through a coupling through a reducer to drive the drum device to rotate around its axis
When the materials enter the drum device, due to the inclination and rotation of the drum device, the materials on the screen surface turn and roll, so that the qualified materials (products under the screen) are discharged through the discharge port at the bottom of the rear end of the drum, and the unqualified materials (products on the screen) are discharged through the discharge port at the tail of the drum
Due to the overturning and rolling of materials in the drum, the materials stuck in the screen hole can be ejected to prevent the screen hole from being blocked
The principle and structure of drum sand screening machine, drum screening machine and drum screen are almost the same, which is due to the difference in people's understanding and name

 
Features 1
The screen hole is not easy to be blocked

2
Stable operation and low noise

3
Simple structure and convenient maintenance

4
The screening cylinder can be closed, which is easy to close and collect dust

5
The whole machine has high reliability and less primary investment

6
Special screen is adopted, with high screening efficiency and long service life

 
Scope of application 1
It is used for grading large and small stones and separating soil and stone powder in the quarry

2
It is used for sand and stone separation in the sand and stone yard

3
The coal industry is used for the separation of lump coal and pulverized coal and coal washing (an integral part of coal washing machinery)

4
Chemical industry and mineral processing industry are used for the classification of large and small blocks and the separation of powdery substances

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Operation and maintenance: the cage roller screen operates stably with a small amount of maintenance
The following is a brief description of the problems that should be paid attention to in operation:
1
When starting up, the cage roller screen must be opened first, and then the feeding equipment; Reverse when shutdown;
2
Three days before operation, the fasteners of cage roller screen shall be checked every day
If they are loose, they shall be tightened in time
After that, the fasteners of cage roller screen can be inspected and treated regularly (weekly or half a month);
3
The lubrication of bearing pedestal and gearbox shall be checked regularly, and the oil shall be filled and changed in time
The large shaft bearing adopts No
2 base grease
Under normal circumstances, the grease shall be filled once every two months
The filling amount shall not be too much, otherwise it is easy to cause the bearing to overheat
All bearings shall be cleaned and inspected once a year

4
When the equipment is stopped for a long time (more than 30 days) and restarted, the broken edge of the motor shall be measured by shaking to avoid burning the motor