Wave-shaped sieve plate and production processes thereof

Abstract

The invention provides a wave-shaped sieve plate which comprises a sieve plate mounting seat and a plurality of sieve plate modules; each sieve plate module is fixed on the sieve plate mounting seat and comprises a base and a plurality of sieve plate units; each base and the plurality of sieve plate units are integrally formed; the plurality of sieve plate units are arranged at the upper end of each base side by side; each sieve plate unit is of a long triangular body structure with an upward tip; sieve holes with same number and shape are uniformly distributed on the two sides of the tips; and a flow guide channel is formed between every two adjacent sieve plate units. The invention also provides two production processes, namely a casting process and an injection molding process. Comparedwith a sieve plate with a similar size, for the wave-shaped sieve plate, the aperture ratio of the sieve plate is multiplied by a wave-shaped sieve surface, so that the production efficiency of sieving machinery, particularly the efficiency of a dehydration sieving machine, is greatly improved; and the special tip structure of each module vibrates along with the sieving machine to exert the effect of loosening a material bed layer from the bottom, so that adjustment of the bed layer structure and material advancing are assisted to a certain extent, and the probability of hole blocking and thelabor cost for cleaning and maintaining are reduced.

Description

technical field [0001] The invention relates to the field of sieve plates, in particular to a corrugated sieve plate and a production process thereof. Background technique [0002] The sieve plate is the most important part that determines the screening efficiency in the screening machinery and equipment, and is widely used in classification, dehydration and other processes. [0003] Polyurethane sieve plate has the characteristics of high wear resistance, good elasticity, not easy to block holes and light weight, and is gradually replacing traditional steel sieve plate. Compared with the punching and welding processes of traditional steel sieve plates, the molding and production processes of polyurethane materials are different in many ways. Due to the material characteristics of polyurethane, such as the elastic modulus is much lower than that of metal sieve plates, in order to ensure the same rigidity as steel sieve plates, it is generally realized by increasing the thic...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention aims to propose a corrugated sieve plate and its production process to solve the problems of low porosity and low dehydration efficiency of the above-mentioned polyurethane flat sieve plate in the dehydration process

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