Mesh belt screen with high-molecular ring belt plane-rotation movement screen surface and manufacturing method of special mesh belt

Abstract

The invention discloses a mesh belt screen with a high-molecular ring belt plane-rotation movement screen surface and a manufacturing method of a special mesh belt thereof. An existing classifying screen mainly adopts a vibrating screen, and has the disadvantages that the yield is low, and the screen surface is likely to block. The mesh belt screen comprises an equipment integral framework (1) anda screen box (2) hinged on the framework, wherein a head wheel (21) and a tail wheel (22) are arranged in the screen box, the head wheel is connected with a rotation driving device (23), the screen box is connected with a plane-rotation driving device (24), the high-molecular ring belt screen surface (3) is used as a conveyor belt to be arranged on the head wheel (21) and the tail wheel (22) in asleeving mode, screening holes (31) are formed in the high-molecular ring belt screen surface, the two sides of the high-molecular ring belt screen surface are provided with non-porous wear-resistantareas (32), the width of the non-porous wear-resistant areas is 15-100 millimeters, carrier rollers (4) are arranged at the screen surface lower part, in contact with materials, of the high-molecularring belt screen surface, and material blocking plates are connected on two side box plates of the screen box. The mesh belt screen is used for the physical classification of solid particulate materials such as foodstuffs.

Description

technical field [0001] The invention relates to a sieve made of high polymer material, with compound motion of flat return and straight line, for grading food raw materials and other solid particle materials, and a manufacturing method of the special mesh belt. Background technique [0002] The material physical grading screen is widely used in the grading treatment of various materials in grain and other industries. The existing grading sieves are mainly mesh belt sieves, which have the disadvantages of low output, easy clogging of the sieve surface, frequent manual cleaning and regular replacement of the sieve surface, which cannot be used continuously, low service life, and poor sieving effect. [0003] During the screening, the grain moves with the conveyor belt. Since there is no agitation and vertical jumping, the smaller particles are always close to the screen surface and can pass through the discharge end of the screen at any time. The screening effect gradually wea...

AI Technical Summary

Problems solved by technology

The existing grading sieves are mainly mesh belt sieves, which have the disadvantages of low output, easy clogging of the sieve surface, frequent manual cleaning and regular replacement of the sieve surface, non-continuous use, low service life, and poor sieving effect

[0003] During the screening, the grain moves with the conveyor belt. Since there is no agitation and vertical jumping, the smaller particles are always close to the screen surface and can pass through the discharge end of the screen at any time. The screening effect gradually weakens during the movement, so that the particles larger than The particles with sieve size quickly move towards the outlet until they are discharged out of the machine to complete the entire screening of the material. Severe classification will occur during the screening, and it is difficult to screen out the slender straw for a long time

[0004] There is no bottleneck for large-scale promotion of mesh belt screens, and there is no suitable special screen for use. We have done a lot of experiments with hinged and woven wire screens, but none of them were successful.

Hinged and woven steel wire screens have a common disadvantage, that is, the steel wires are easy to move when walking, resulting in larger screen holes and smaller adjacent screen holes, changing the shape of the screen holes, and making the screening work impossible. For example, we use long strips When the holes are sieved to remove small impurities in the grain, when the sieve surface is moving, the larger the sieve holes will cause a large amount of grain to fall into the impurities, causing losses

[0005] At the same time, the woven steel wire screen is also easy to break, and its service life is generally about 10 days, which is far from meeting the requirements of normal continuous work. We have also done a lot of experiments with hinged punching plates. The position is prone to deformation, and even the screen is broken

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