【Product introduction】The drum screen is mainly composed of a motor, a reducer, a drum device, a frame, a sealing cover, and an inlet and outlet. The roller unit is mounted on the rack at an angle. The motor is connected to the drum device through a reducer through a coupling, and drives the drum device to rotate around its axis. When the material enters the drum device, the material on the screen surface flips and rolls due to the inclination and rotation of the drum device, so that the qualified material (the product under the screen) is discharged through the discharge port at the bottom of the rear end of the drum, and the unqualified material (the product on the screen) is discharged through the discharge port at the tail of the drum. As the material flips and rolls in the drum, the material stuck in the screen hole can be ejected to prevent the sieve hole from being blocked. The principle structure of drum screen sand machine, drum screening machine and drum screen is almost the same, and there are differences in people's understanding and name of it. [Product features] Drum screen performance characteristics: 1. Wide material adaptability This machine is widely used in screening all kinds of materials, whether it is inferior coal, slime, bituminous coal and other materials, it can be screened smoothly. 2. The feeding method is simple and diverse. The feeding port of the rotary screen can be set according to the actual juice on site. Whether it is a belt, funnel or other feeding method, it can be fed smoothly without special measures. 3. Equipment with high screening efficiency can be equipped with a comb type screen cleaning mechanism. During the screening process, no matter how dirty or miscellaneous the materials entering the screening cylinder are, it can be screened, thus improving the screening efficiency of the equipment. 4. The screening amount is large and easy to be enlarged. Under the same size, the circular area is larger than that of other shapes, so the effective screening area is large, so that the material can fully contact the screen, so the screening amount per unit time is large. Due to its simple structure, convenient layout, novel and mature technology, etc., it is easy to be enlarged. 5. Its own energy consumption is small, the rotary screen motor power is small, one-half to one-third of other screen types, and the operating time for processing the same amount of materials is only one-half of that of other screen types, so the energy consumption is low. 6. Good working environment The entire screening cylinder can be sealed with a sealed isolation cover, which eliminates dust flying and block splashing during the screening cycle, and avoids pollution to the working environment. 7. Low equipment noise During the operation of the rotary screen, due to the small speed of the rotary screen and the sealing isolation cover to isolate it from the outside world, the noise cannot be transmitted to the outside world, thereby reducing the equipment noise. 8. Long service life and small maintenance volume The rotary screen is composed of several annular nets. Its total screening area is far larger than the screening area of other screen types. In addition, the screening efficiency is high, the equipment operation time is short, so the service life is long, the wearing parts are few, and the maintenance volume is small. 9. Convenient maintenance The sealing isolation cover of the equipment can be disassembled. After disassembly, it does not affect the normal operation of the machine, and the maintenance is very convenient.