Belt type separated flow rice mill and rice milling method

Abstract

The main problems of the traditional whitening method of the belt-type separated flow rice mill and the rice milling method are high energy consumption and a lot of broken rice. A belt-type split-flow rice mill, which consists of: a feeding device (1), a whitening chamber (2), a discharge device (3), a transmission device (4) and a frame (5). The chamber includes 2 sets of rice milling rooms (8) that are arranged opposite to each other and surrounded by a milling belt (6) and a screening body (7). The milling belt bypasses the frame (5 ) The rollers (9) at both ends are connected end to end to form a ring belt. The screening body is installed in two rows on both sides of the straight section of the grinding belt. The screening body (7) and the There is a gap between the grinding belts (6), and the gap is less than 2 mm. There is a negative pressure space between the outside of the screening body and the casing, and the negative pressure space (10) is connected to a suction fan. The invention is used for rice milling.

Description

Technical field: [0001] The invention relates to a paddy processing equipment-rice milling machine. The function of the rice mill is to peel off the surface cortex of brown rice formed after paddy husking to become edible white rice. Background technique: [0002] The rice milling machine has been used in the world for more than 100 years, and its core component, the whitening room, has not had a major technical breakthrough in structure, and is still composed of a roller and a rice knife sieve. The roller plays the role of grinding the skin of brown rice, and the function of the rice knife is to increase the pressure in the whitening chamber and increase the whitening effect. The main problems of the traditional whitening method are high energy consumption and a lot of broken rice. The reason is that the brown rice in the traditional process rotates spirally with the roller during the milling process, and there is a gap of 10-8mm between the rice knife and the roller of th...

AI Technical Summary

Problems solved by technology

The main problems of the traditional whitening method are high energy consumption and a lot of broken rice. The reason is that the brown rice in the traditional process rotates spirally with the roller during the milling process, and there is a gap of 10-8mm between the rice knife and the roller of the rice mill. , the rice grains must pass through this gap for circulation, and the rice milling room is connected as a whole. This structure greatly weakens the relative friction required for milling, and also consumes a lot of power for no reason. The power consumption per ton of rice is generally above 20kw.

At the same time, due to the long distance traveled by the rice grains, the pressure in the whitening room is high, and a considerable part of the energy used for cutting and peeling brown rice during the whitening process is converted into heat, which causes a large temperature rise of the rice grains, consumes energy and brings adverse consequences.

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