Walnut screening machine

Abstract

The invention discloses a walnut screening machine, and aims to provide a walnut screening machine with high screening efficiency. The machine comprises a rack, a screen drum rotatably mounted on therack, a feeding groove fixedly connected to the rack and located at a feed inlet of the screen drum, discharge grooves fixedly connected to the rack and located below the screen drum and at a discharge end, and a power device for driving the screen drum to rotate. The screen drum is divided into a plurality of sections, and the apertures of screen meshes of each section of the screen drum are sequentially increased from the feed inlet to the other end; the inner wall of the screen drum is provided with a spiral conveying blade; rollers are rotationally arranged on the rack and located on the upper portion and / or side of the outer wall of the screen drum; the axes of the rollers are parallel to the screen drum, and the wall surfaces of the rollers are close to the outer wall surface of thescreen drum; the length of the rollers is not shorter than the length of screen hole areas on the screen cylinder. The machine is suitable for screening various walnuts.

Description

technical field [0001] The invention relates to the technical field of screening equipment, in particular to a walnut screening machine. Background technique [0002] Walnuts are produced in many provinces in China. Distributed in Central Asia, West Asia, South Asia and Europe. Born in hillsides and hills at an altitude of 400-1800 meters, it is commonly cultivated in plains and hills in China. The seeds have high oil content and can be eaten raw or squeezed into oil; the wood is solid and is a good hardwood material. Together with almonds, cashews, and hazelnuts, it is listed as the world's four largest dried fruits. As a kind of nut loved by the majority of people, walnut has rich nutritional value and high edible value. It contains 15-20 grams of protein per 100 grams, and contains calcium, phosphorus, iron and other trace elements and minerals necessary for human body. And carotene, riboflavin and other vitamins are beneficial to the human body and can strengthen the...

AI Technical Summary

Problems solved by technology

After the walnuts are harvested, they are generally screened according to their volume, and the walnuts within a certain diameter range are screened out to achieve product grading; at present, manual screening and mechanical screening are mainly used. Manual screening not only consumes manpower and time, but also makes the efficiency very low.

However, the existing walnut screening equipment has the following deficiencies: (1) When walnuts are screened, walnuts will be stuck on the sieve holes, causing blockage of the sieve holes, resulting in a significant reduction in screening efficiency. It needs to be cleaned manually by knocking, which is easy to clean. cause walnuts to crumble

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