Anti-blocking double-layer roller screen

Abstract

The invention discloses an anti-blocking type double-layer roller screen, and relates to the technical field of material screening. The roller screen comprises a rack, an inner cylinder screen and anouter cylinder screen, wherein the inner cylinder screen and the outer cylinder screen are installed on the rack; the cross section profile of the rack is of an inverted V-shaped structure, and a first fixing rod is symmetrically connected between the bottom ends of the first side plate and the second side plate of the rack; the inner cylinder screen is obliquely installed between the first side plate and the second side plate; the outer cylinder screen is located outside the inner cylinder screen, the central axis of the outer cylinder screen coincides with the central axis of the inner cylinder screen, and the outer surface of the outer cylinder screen is fixedly connected with fixing plates which are in line contact with supporting wheels; and multiple protruding bodies are uniformly arranged on the surface of a rolling brush, brushes are arranged among the protruding bodies, and a rotating shaft is arranged at the two ends of the rolling brush. According to the anti-blocking type double-layer roller screen, through arranging the rolling brush between the inner cylinder screen and the outer cylinder screen, through a transmission mode of a belt wheel and a gear, power of the rolling brush, the inner cylinder screen and the outer cylinder screen is output by the same motor, the so that blockage of the double-layer roller screen is avoided, screening efficiency is improved, and manufacturing cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of material screening, in particular to an anti-clogging type double-layer drum screen. Background technique [0002] With the advancement of science and technology, people often use double-deck drum screens when screening materials; double-deck drum screens are mechanical equipment that can be screened twice according to the specifications of materials. It has a wide range of applications, such as For grain screening, it puts the material into the inner cylinder sieve during work, and the material screened by the inner cylinder sieve will be screened twice by the outer cylinder sieve to remove impurities and improve the quality of the material. [0003] At present, in the double-deck trommel screens on the market, the outer cylinder screen is generally fixed or the outer cylinder screen and the inner cylinder screen move synchronously, and its screening efficiency is low; while the inner and outer cylinder ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an anti-clogging double-layer drum screen, by setting a roller brush between the inner cylinder screen and the outer cylinder screen, and respectively connecting the roller brush, the inner cylinder screen and the outer cylinder screen through the transmission mode of the pulley and the gear. The power of the trommel screen is output by the same motor, which solves the problems of the existing double-deck trommel screen due to material clogging, low screening efficiency and high manufacturing cost

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