Advanced technology promotes new screen progress

Advanced technology promotes new screen progress

Since the 16th century, United Kingdom applied the first set of fixed screen to the coal industry, many kinds of screening equipment has appeared in the world, such as cylinder screen, shaking screen, roller screen, resonance vibration sieve, etc. And the possesses absolute advantage in all screening equipment with its simple structure, large capacity, work reliably, its footprint is about 95%. After the 1970s, with the advancement of screening technology, the emergence of new screening machines revolved around the development of vibrating screen, such as enhanced vibration parameters, equipment of large scale, machine parts and components of three, popularization and application of self-synchronous technology, etc. While others such as roller screen, drum sieve, shake the screen gradually being phased out.

Screening is a separation process carried out according to the material particle size, which means the process separating the smaller particle size from the larger particle size with screen. The handling and processing of materials often need screening operation, so its use range is very wide, including mining, metallurgy, foundry, chemicals, fertilizers, seeds, powder, food, medicine, feed, paper and other industrial sectors. Although these areas all need screening operations, the material nature and process conditions are different from each other, as well as the various requirements for screening equipment. So, we only provide the information on screening equipment for mine.

During the screening process, the material first on the screen surface does decentralized movement, making the material covered with whole sieve. In the sieving motion, the fragmentation of material with certain shape and proportion forms their different levels under the kinetic energy. And large particles on top of small particles, the particles which are smaller than sieve hole size met go through the mesh screen. To achieve large capacity and high screening efficiency during the screening process, materials which are smaller than the mesh must go through sieve rapidly.
Dymott believes that major factors affecting material screening, are the item's own characteristics, operating conditions, sieve structure and screening surface.
A vibrating screen or sieve plays an essential role in industries that involve classifying, separating, sizing, and sorting various materials. They are important in both manufacturing and industrial domains. Their size, design, weight, and operation method can vary dramatically; this is important as they can then provide the maximum possible efficiency for whatever use they are put to. In general terms vibratory sieves and screens are used in the initial processing stage of various raw materials as well as in recycling plants and occasionally in environmental clean up operations.