Rotary-sifting watermill polishing machine for rice

Abstract

The rice polisher with rotary sieve and water mill includes a frame, a bran collecting bin, a discharge port, a main shaft, a polishing roller, a screw conveyer, a rice sieve and a main driving belt wheel. It features the hollow main shaft with atomizing water pipe connected to water source inserted into its cavity and fixed on to the frame via bearing and other part; the rice sieve on the main shaft and with through hole to the cavity; the polishing roller with through hole for water to flow out; the main driving belt wheel connected to one end of the main shaft and the other belt wheel mounted to the other end of the main shaft and connected via a conveying belt to the reducer; the reducer meshed via a driving wheel to the driven gear on the rice sieve bracket; and the rice sieve bracket rotating in the same direction as and different speed from the main shaft. The rice polisher has the features of high rice polishing rate, high rice yield, low broken rice rate and low power consumption.

Description

technical field [0001] The invention relates to a rice polishing machine, in particular to a rotary sieve rice water mill polishing machine. Background technique [0002] There are mainly two types of rice polishing machines produced at home and abroad: horizontal type and vertical type. They all adopt the traditional fixed screen polishing technology. High-speed rotation, after the rice enters the polishing chamber from the hopper, the polishing roller drives the rice to tumble, leaving a "dead zone" under the polishing chamber. A very small part of the rice entering the "dead zone" can be friction-polished or semi-polished, and most The rice grains are pushed forward under the action of the conveyor, extruded in a straight line and unable to be polished, which reduces the overall polishing rate of the rice out of the machine. When the rice is driven by the polishing roller, it forms static friction in the fixed polishing chamber, and the polishing roller directly collides...

AI Technical Summary

Problems solved by technology

[0002] There are mainly two types of rice polishing machines produced at home and abroad: horizontal type and vertical type. They all adopt the traditional fixed screen polishing technology. High-speed rotation, after the rice enters the polishing chamber from the hopper, the polishing roller drives the rice to tumble, leaving a "dead zone" under the polishing chamber. A very small part of the rice entering the "dead zone" can be friction-polished or semi-polished, and most The rice grains are pushed forward under the action of the conveyor, extruded in a straight line and cannot be polished, which reduces the overall polishing rate of the rice out of the machine

When the rice is driven by the polishing roller, it forms static friction in the fixed polishing chamber, and the polishing roller directly collides with the rice, so that the rice breakage rate is high. If the rice is not fully rolled, the heat generated by the friction of the rice is not enough, the watering of the rice is not very uniform, and it is difficult to form a gelatinized layer on the surface of some rice, and the smoothness and transparency are poor, which seriously affects the polishing quality of the rice.

For this reason, many rice processing factories use two or three rice water milling and polishing machines to improve the polishing quality, which greatly increases the production cost, increases the broken rice rate, and reduces the rice output rate.

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