Multi-stage impurity removing and screening device for rice

Abstract

The invention discloses a multi-stage impurity removing and screening device for rice. The multi-stage impurity removing and screening device for the rice comprises a box body, a feeding opening is formed in one side of the upper end of the box body, a first screening cavity is formed right below the feeding opening, an air blowing opening and a first discharging opening are formed in the right side of the first screening cavity, a first dust outlet is formed in the left side of the first screening cavity, a first screening net is arranged at the bottom of the first screening cavity; a secondscreening cavity is formed below the first screening net, another air blowing nozzle and a second discharging port are fixedly formed in the right side of the second screening cavity, a second dust outlet is formed in the left side of the second screening cavity; air blowers are arranged at the air blowing openings, the first dust outlet and the second dust outlet are connected with a dust collecting box, the first screening net and the second screening net incline towards the lower right portion, vibration motors are fixedly connected to the bottoms of the first screening net and the second screening net; and a first discharging opening and a second discharging opening are connected with a discharging sliding groove. According to the multi-stage impurity removing and screening device forthe rice, two-stage filtering and screening can be carried out on rice containing dust impurities, and the filtering and impurity removing effect is remarkably improved.

Description

technical field [0001] The invention relates to the field of rice processing, in particular to a rice multi-stage impurity removal and screening device. Background technique [0002] my country is a country with a large population, as well as a major food production and consumption country. The average daily rice consumption is as high as 32.9 tons, which means that rice production is very important. In the process of rice production, because some rice with poor quality is easy to be mixed in the rice harvesting process, and at the same time, some rice is damaged during transportation and may be mixed with impurities, so the rice with poor quality and impurities may be cleaned up in time, and the rice screening is essential. [0003] With the development of science and technology, rice screening machines and rice selection machines have emerged as the times require, but there are certain disadvantages in the use of existing screening devices: some screening devices have onl...

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Problems solved by technology

[0003] With the development of science and technology, rice screening machines and rice selection machines have emerged as the times require, but there are certain disadvantages in the use of existing screening devices: some screening devices have only one level of screening stages, which cannot achieve different volumes of rice. The purpose of screening, secondly, there is only one level of impurity removal device, and some light dust in rice cannot be removed by one-time soot blowing and impurity removal, and will still enter the screened rice, the actual use effect is poor, affecting the quality of rice

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