Rice multi-stage screening device

Abstract

The invention discloses a rice multi-stage screening device, which comprises a primary screening device and a secondary screening device. The primary screening device includes a primary screening box, a feeding hopper, an air blowing box, a blower, a second A material guide plate, a primary screen plate, a second material guide plate and a collection box; the secondary screening device includes a secondary screening box, a secondary screening mechanism, a first material storage box and a second material storage box, the secondary screening mechanism includes a first bearing block, a secondary screening rotor, a second bearing seat and a mechanism for driving the secondary screening The motor that rotates the drum. The first-stage screening device of the present invention uses air blowing and screening plates to initially screen rice, and handles rice bran and microparticles in the rice, which improves the efficiency of preliminary screening; Screening, and screen the whole rice and broken rice in the rice with the screening cylinder with through holes.

Description

technical field [0001] The invention relates to the technical field of rice screening, in particular to a multi-stage rice screening device. Background technique [0002] In addition to rich in carbohydrates, rice also contains protein, fat, vitamins and 11 kinds of minerals, which can provide comprehensive nutrition for the human body. It is highly nutritious, so it is known as the first of the five grains. After the rice is harvested every year, the rice needs to be dried in order to facilitate the processing of the subsequent work. When drying, generally a large amount of rice is spread on the drying field and used to dry in the open air, so when drying, it is inevitable that some soil, small stones, dust and even iron filings will be mixed in the rice. Moreover, when harvesting Rice itself is also doped with some chaff and other impurities. If you eat these rice containing impurities directly, it will obviously have adverse effects on human health. [0003] The functio...

AI Technical Summary

Problems solved by technology

When drying, generally a large amount of rice is spread on the drying field and used to dry in the open air, so when drying, it is inevitable that some soil, small stones, dust and even iron filings will be mixed in the rice. Moreover, when harvesting Rice itself is also doped with some chaff and other impurities. If you eat these rice containing impurities directly, it will obviously have adverse effects on human health.

[0003] The function of the rice screening device is relatively single, and it cannot screen a variety of impurities. If the rice contains a variety of impurities, it needs a variety of equipment or a variety of processes, which consumes manpower and material resources, and the cost will increase accordingly, but does not perform multiple processes. , it will lead to inexhaustible removal of debris, but it is more difficult to install multiple impurity removal devices, and the operation is more complicated. It is also time-consuming to transfer the rice screened by one device to another device

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