Cereal sorting system and roll sorting machine

Abstract

A cereal sorting system, characterized by comprising an air force sorting process in which light-weight foreign matter is sorted and removed from raw cereal, a rough sorting process in which foreign matter having different grain size is sorted and removed from the raw cereal, and a roll sorting process in which foreign matter having different shapes is sorted and removed from the raw cereal passed through these both processes; a roll sorting device for cereal, characterized in that an endless belt is passed around a lower roll and an upper roll disposed diagonally above the lower roll, the lower and upper rolls are inclined in the same direction at a specified angle, the inclined angle of the lower roll is set smaller than that of the upper roll, a at a specified rate is provided and / or a drive source for the endless belt is formed of a speed changing drive type.

Description

technical field [0001] The invention relates to a grain screening system and a belt-type screening machine, which can thoroughly screen out various seeds such as hulls, straw, mustard seeds, grass seeds, corn grains, dust, mud, and garbage from soybeans, adzuki beans, and other grains. , stones, metals and other foreign matter, or insect-eating beans, half-grain beans, broken beans and other undesirable objects, and also relates to a belt screening machine assembled in the grain screening system. Background technique [0002] In the past, from grains such as soybeans and adzuki beans, husks, straws, mustard seeds and other seeds, grass seeds, corn kernels, dust, mud, garbage, stones and metals, etc. Peanuts, crushed beans and other undesirable substances are generally completed by a screening system consisting of a roughing machine, a specific gravity screening machine, and a spiral screening machine. [0003] This kind of screening system is to remove the foreign matter wi...

AI Technical Summary

Problems solved by technology

[0009] However, there are the following problems in the conventional belt screening machine: ①. Since the amount of grain raw material supplied from the grain raw material discharge chute is unstable, it may cause overflow or blockage of the grain raw material inlet. In addition, when the grain raw material When the supply of raw materials temporarily exceeds the processing capacity of the equipment, the screening accuracy will be significantly reduced

②.Sometimes the shape of grain raw materials such as soybeans is elliptical. When screening such elliptical grain raw materials, although the raw materials start to roll and screen when the flat belt speed reaches the specified speed, due to the The optimal flat belt speed is different, so there will be deviations in screening accuracy due to the type of raw materials

③. In the case of multi-layer belt screening machines being stacked to form a multi-layer belt screening machine, in the past, the sprockets at one end of the roller shaft above each layer were connected with a chain, and a driving source made the multi-layer flat belt Linkage, so the more layers, the easier it is to cause failure due to chain slack. In addition, when oiling the chain for maintenance, oil will splash on the grain raw materials and cause pollution. Moreover, after maintenance, if the chain is detached It is very dangerous if the sprocket is removed, and there is a problem with operational safety

Images