A Commonly Used Screening Equipment-Rotary Drum Screen

In thebuilding materials production industry, whether it is raw materials or finishedmaterials, we often need to distinguish between them. At this time, a commonmaterial selection equipment is indispensable, that is the drum screen. Ingeneral,

Thecommon application scenarios are as follows: Used for grading large and smallstones in stone yard, and separating soil and stone powder; Separated from sandand gravel in sand yard; Used in the coal industry for the separation of lumpcoal and coal powder and coal washing (components of coal washing machinery); Inthe chemical industry and mineral processing industry, it is used to classifylarge and small lumps and separate powdery substances.

Rotarydrum screen is a new generation of screen material equipment, mainly composedof inlet and outlet, motor, reducer, frame, roller device, etc., can be used inchemical industry, coking plant, mine, power plant, building materials,metallurgy and other industries. The roller device is installed obliquely onthe frame, and the outside is sealed by a sealing isolator to preventcontamination.

Whenthe rotary drum screen is working, the motor connects the reducer and the drumdevice through a coupling, and drives the drum device to rotate around itsaxis. The rotary drum screen is a mechanical method, and several parallelscreen strips form a screen hole to form a screen surface. After putting thematerials into the roller device, the materials are turned and rolled due tothe tilt and rotation of the roller device. The materials are screened out oneby one through different meshes, and the materials stuck in the screen holescan also be ejected to prevent clogging.

Maybewe often hear the terms shaftless roller screen and shafted roller screen, sowhat is the difference between the two? Let me take a look today: Of course,the structure is different. First, whether it has a central axis;

Second,the materials are different. The shaft type is suitable for the separation oflarge and small materials in the mineral processing industry. The shaftlesstype is viscous material. The shaft drum screen is mainly used for theseparation of large and small bulk materials in stone factories, sand and stonefactories and mineral processing industries. The shaftless drum screen ismainly used for the classification of banded and strong winding materials. Itis used for the classification of refractory materials, coal, fertilizers,sandstone stones, and the screening of viscous materials such as coal, coke,white ash, and placer gold. To make the product structure more uniform to meetthe production needs.

Third,the transmission mode is different. The moving mode of the shaft drum screen isthat the driving device is connected to the coupling, and the drum rotatesaround its axis when driven by the motor.

Thetransmission mode of the shaftless drum screen will be different. There arethree transmission modes, chain transmission, gear transmission and idlertransmission.

Third,the transmission mode is different. The moving mode of the shaft drum screen isthat the driving device is connected to the coupling, and the drum rotatesaround its axis when driven by the motor.

Thetransmission mode of the shaftless rotary drum screen will be different. Thereare three transmission modes, chain transmission, gear transmission and idlertransmission.

①       The movement mode of the chain shaftlessrotary drum screen is that the motor drives the chain, and there is a gear atthe front of the drum.

②      Themovement mode of the gear shaftless rotary drum screen is that the front end ofthe drum is equipped with a large gear, and the motor drives the small gear.The small gear and the large gear mesh together, and the drum is rotated by thetorsional force of the gear.

③       The movement mode of the roller-less rotarydrum screen is that the roller is placed on four or more rollers, and theroller is driven by the motor. Under the action of friction, the roller drivesthe roller to rotate.

Fourth,the processing capacity is different. The processing capacity of shaftlessrotary drum screen is 20% higher than that of shaft roller screen.

Theabove is a general description of the equipment such as the drum screen. I didnot expect that it is so widely used, and now it has been developed for variousoccasions. We must investigate it before using it in the future.