Efficient, environment-friendly and energy-saving screening device for corn grains

Abstract

The invention provides an efficient, environment-friendly and energy-saving screening device for corn grains. The efficient, environment-friendly and energy-saving screening device comprises a base, a screening device body, a feeding device for feeding to the screening device body, a first driving device and a second driving device. The screening device body comprises a first screening plate, a second screening plate and a collecting box; the feeding device comprises a feeding box, and an impurity collecting chamber and a material chamber are formed in the feeding box; a feeding pipe is arranged on the feeding box, a feeding hopper is arranged at the feeding end of the feeding pipe, a distributing plate is arranged in the feeding pipe, the inside of the feeding pipe is divided into an impurity channel and a material channel by the distributing plate, the feeding hopper is located on the material channel and provided with a feeding opening, an air inlet pipe is arranged at the portion, close to the feeding end of the material channel, of the side wall of the feeding pipe and is aslant downwards, the impurity channel is communicated with the impurity collecting chamber, and the material channel is communicated with the material chamber; and the first driving device and the second driving device are used for driving the first screening plate and the second screening plate to vibrate up and down. The efficient, environment-friendly and energy-saving screening device is simple in structure, free of manual operation and good in screening effect.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a high-efficiency, environment-friendly and energy-saving corn grain screening device. Background technique [0002] At present, after the corn is harvested and threshed, impurities such as husks and sand grains are often mixed in the corn, which affects the overall quality of the corn. There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of corn; the other is the method of using a corn screening machine. The method has the disadvantage of high cost of purchasing the equipment due to the complex structure of the corn screening machine. In addition, due to the large amount of impurities in the corn, a large amount of dust will appear during the screening process, which will affect the health of the operators. Con...

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Problems solved by technology

[0002] At present, after corn is harvested and threshed, impurities such as hulls and sand are often mixed into the corn, which affects the overall quality of the corn.

There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of corn; the other is the method of using a corn screening machine. method, this method has the disadvantage of high cost of purchasing the equipment due to the complex structure of the corn screening machine. In addition, due to the large amount of impurities in the corn, a large amount of dust will appear during the screening process, which will affect the health of the operators

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