Grain sieving device

Abstract

The invention belongs to the technical field of grain husk separation, and particularly discloses a grain husk sieving apparatus. The grain husk sieving apparatus comprises a feeding unit, a husk sieving unit and a separation unit, wherein the feeding unit comprises a material cabin and a feeding passage; the husk sieving unit comprises a communication pipe, a rotary drum, an arc plate and a transmission shaft, a grinding drum is fixed in the rotary drum, a discharging end of the feeding passage is fixedly connected with an inner passage, and the inner wall of the grinding drum and the outer wall of the inner passage are respectively provided with a plurality of pressing blocks; the arc plate is fixedly provided with a connecting rod; the separation unit comprises a rotating shaft, a separation drum and a motor, a pushing plate is connected into the separation drum in a sliding manner, the pushing plate is fixedly provided with a pushing column, and the rotating shaft is fixedly provided with a second cam; the side walls of the upper portion and the lower portion of the separation drum are respectively connected with an air pipe, and each air pipe is provided with a one-way exhaustvalve; the upper surface of the separation drum is provided with a one-way inlet valve; and the side wall of the separation drum is provided with an outlet, and a charging door is arranged in the separation drum. By using the grain husk sieving apparatus, the sufficiency of sieving grain husk can be ensured, and grains which are not husked can be prevented from entering a next procedure.

Description

technical field [0001] The invention belongs to the technical field of grain husking, in particular to a grain sieving device. Background technique [0002] Grains contain not only a large amount of carbohydrates (about 70-80%), but most of them are starch. Grain starch is divided into two types according to its molecular structure: amylose and amylopectin. Due to the differences in solubility, viscosity, and digestibility of the two, as well as the different proportions in different grains, they directly affect their processing. Features and edible flavor. Grain carbohydrates have a high utilization rate, usually over 90%, and are the main source of human body heat. [0003] Rice is one of the most commonly eaten grains for humans. Rice needs to go through processes such as impurity removal, husking, rice milling, and finished product finishing before it is processed into rice that can be eaten by people. In the paddy processing process, it is necessary to carry out the ...

AI Technical Summary

Problems solved by technology

In the paddy processing process, it is necessary to sieve the paddy. When the paddy is sieved, the following problems usually occur when using the prior art: (1) before the paddy is sieved Use the impurity removal device to remove impurities and dust in the rice, and then transfer the rice to the skin screening device after the impurity removal device. The processing steps are cumbersome and inefficient.

(2) When sifting the paddy, due to the large amount of paddy processing in the existing equipment, the paddy shelling is not sufficient, and some paddy enters the next processing process without the shelling process, causing adverse effects on the follow-up processing of the paddy. Impact

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