Screening and drying device

Abstract

The invention provides a screening and drying device. The screening and drying device comprises a shell, a screening cylinder, a conveying device, a separation cylinder, a heating box, a combustion chamber, an air sucker and a protective cover. The elimination of large impurities of materials is realized through the screening cylinder; the primarily screened materials flow into the separation cylinder through the conveying device for secondary screening through cooperation with the air sucker; light impurities sucked by the air sucker flow into the combustion chamber for combustion to realizethe waste utilization of impurity resources; meanwhile, the air sucker blows air into the combustion chamber to achieve two purposes in one machine; the combustion chamber is used for heating liquid in the heating box; and in the secondary screening process of the materials, the materials in the separation cylinder are heated and dried by the heating box around the outer wall of the separation cylinder, so that the synchronous implementation of screening and drying of the materials is realized, and the drying and screening time of the materials is effectively shortened.

Description

technical field [0001] The invention relates to the technical field of crop separation and drying, in particular to a screening and drying device. Background technique [0002] General crops (cereals, rapeseed, soybeans, etc.), especially seed and fruit crops, usually need to be screened and dried for subsequent storage and processing. The traditional drying method is mainly drying on the playground by sunlight , the hand-operated windmill after drying is screened; in the drying and screening process, the labor load is large, the labor intensity is high, and the efficiency is low, and there are also some drying and screening devices on the market at present, see Chinese patents CN103385291A, CN203399656U, CN203936028U, CN104226603A these Although the device solves the problem of drying or screening to a certain extent, it has the following problems: 1. It simply includes the screening part or the drying part. Drying and screening cannot be carried out at the same time, which...

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Problems solved by technology

[0002] General crops (cereals, rapeseed, soybeans, etc.), especially seed and fruit crops, usually need to be screened and dried for subsequent storage and processing. The traditional drying method is mainly drying on the playground by sunlight , the hand-operated windmill after drying is screened; in the drying and screening process, the labor load is large, the labor intensity is high, and the efficiency is low, and there are also some drying and screening devices on the market at present, see Chinese patents CN103385291A, CN203399656U, CN203936028U, CN104226603A these Although the device solves the problem of drying or screening to a certain extent, it has the following problems: 1. It simply includes the screening part or the drying part. Drying and screening cannot be carried out at the same time, which increases labor time and reduces efficiency; 2. Often it can only be screened once, and the impurities in the grass strips in the material need to be manually removed; 3. The screening cylinder or screening net is blocked by crops, reducing the screening efficiency

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