Flow-isolating and energy-saving rice mill and rice milling method

Abstract

The invention discloses a flow-isolating and energy-saving rice mill and a rice milling method; the rice mill is used for one hundred years in the world; and a core part-a whitening chamber thereof dose not has the big technical breakthrough in structure all the time, and still consists of a milling roller, a rice sieve and a huller blade, so that the energy consumption is high, and broken rice is much. The flow-isolating and energy-saving rice mill comprises a feeding device (1), a whitening chamber (2), a discharge device (3), a transmission device (4) and a frame (5), wherein the whitening chamber comprises a set of rice milling rooms (9) consisting of milling rollers (6), flow isolating bodies (7) and rice sieves (8); the distances between the flow isolating bodies and the milling rollers are below 2 mm; the rice sieves are mounted at the outer sides of the flow isolating bodies; and a negative pressure space (11) is formed between the outer sides of the rice sieves and a shell (10), and is connected with a suction fan. The flow-isolating and energy-saving rice mill is used for milling rice.

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] Rice milling machines have been used in the world for more than 100 years. The core component of the whitening room has not had a major technical breakthrough in structure. It is still composed of three parts: rollers, rice sieves, and rice knives. The roller plays the role of grinding the skin of brown rice. 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 more 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 o...

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 are extruded when they pass through this gap, and the whitening room is connected as a whole, and the rice grains circle in it, passing through the rice knives many times for processing, resulting in large energy consumption, so that the energy consumption required for milling is relatively low. It also consumes a lot of power for no reason, and the power consumption per ton meter 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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