Spiral grading sieve

Abstract

The invention relates to a spiral grading sieve, which mainly solves the problems of great abrasion, blockage of sieve pores by North China fritillary root, sieve clinging by fritillary soil of high humidity and low sieving efficiency in conventional sieves. The spiral grading sieve is characterized in that a first layer of sieve surface (6) and a second layer of sieve surface (7) have a 'concave' type formed by parallelly arranged threaded rods (8); threaded ribs and grooves on adjacent threaded rods (8) form sieve pores; the end heads of the threaded rods (8) are fixed with gears (9); gears (9) on adjacent threaded rods (8) are meshed with inert gears (10) under the gears; and belt transmission is adopted between one threaded rod (8) inside the first layer of sieve surface (6) and a diesel engine (3), and between the other threaded rod (8) inside the first layer of sieve surface (6) and a threaded rod (8) inside the second layer of sieve surface (7). The spiral grading sieve has the characteristics of less sieve abrasion, difficult blockage of sieve and high sieving efficiency.

Description

Technical field: [0001] The invention relates to a solid particle sieving device, which belongs to a spiral type flat scallop grade grading sieve. Background technique: [0002] At present, when sieving crop rhizomes as harvest objects at home and abroad, it is generally classified according to the physical geometric size of the particles, which is conducive to sorting. There are problems such as blockage of sieve holes, large wear of the sieve, low operating rate, etc., especially for high-humidity shellfish, which has the problem of sticking to the sieve, and the screening effect is poor. Invention content: [0003] In order to overcome the disadvantages of the existing scallop grading separation sieve, such as large wear of the scallop sieve, blockage of sieve holes by scallop roots, sticky sieve with high humidity soil and low screening efficiency, the present invention provides a spiral scallop grading classifier In addition to inheriting the functions of the traditi...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing scallop grading separation sieve, such as large wear of the scallop sieve, blockage of sieve holes by scallop roots, sticky sieve with high humidity soil and low screening efficiency, the present invention provides a spiral scallop grading classifier In addition to inheriting the functions of the traditional scallop grading sieve, the spiral scallop grading sieve also has the following new functions: 1. Realize the three-stage separation of scallops on the same machine; 2. Use the spiral itself Features Effectively stir the shellfish and the soil to separate the two, so as to realize the screening of the shellfish; 3. For the wet clay soil, it is beneficial to the penetration of the shellfish so that the shellfish will not stick to the sieve holes; 4. Due to the spiral The sieve hole formed by the sieve is dynamic, and the sieve hole formed by the spiral sieve does not have the problem of blocking the sieve; 5. The wear of the sieve is small and the screening efficiency is high

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