Efficient grain impurity-removing and drying device with pre-heating function

Abstract

The invention discloses an efficient grain impurity-removing and drying device with pre-heating function. The efficient grain impurity-removing and drying device comprises a pre-heating box; and a discharging pipe is arranged under the pre-heating box, a impurity-removing box communicates the lower portion of the discharging pipe, and a throwing hopper is arranged on the position, below the discharging pipe, of the impurity-removing box. According to the efficient grain impurity-removing and drying device, rolling rollers and a heating cover are arranged so that hardened grain blocks can be efficiently broken, subsequent screening and dust-removing processes can be facilitated, meanwhile, grain undergo the pre-heating process, and the high-efficiency utilization of the heat energy is realized; the throwing hopper and a cyclone dust collector are arranged, the grain is thrown into the air so that the grain can be in full contact with hot air, the drying efficiency can be improved, drying can be more thorough, and meanwhile, light garbage and flat husks of grains can be cleared; a sealing cover driven by a groove roller and a variable frequency motor are arranged so that the grain falling speed can be controlled conveniently, and the processing effect can be guaranteed; and two stages of sieve plates are arranged, high-efficiency separation can be carried out on solid waste withrelatively large quality in the grain, and the impurity-removing effect can be improved.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a high-efficiency grain impurity removal and drying device with a preheating function. Background technique [0002] When the grain is harvested from heaven and earth, it needs to be preliminarily removed and then dried. After the preliminary drying, the grain needs to be further dried and removed before being processed or stored, which has reached the standard of processing and storage. [0003] Traditional grain drying and impurity removal use independent equipment, which is inefficient and needs to transfer materials back and forth. The traditional screening machine has a simple structure, single function, and general impurity removal effect, and cannot effectively remove shriveled grains, dust, stones, etc. in the grain. Fully cleared, the hardened grain blocks affect the screening, and the screening effect on wet grains is poor, which affects post-processing and storage...

AI Technical Summary

Problems solved by technology

[0003] Traditional grain drying and impurity removal use independent equipment, which is inefficient and needs to transfer materials back and forth. The traditional screening machine has a simple structure, single function, and general impurity removal effect, and cannot effectively remove shriveled grains, dust, stones, etc. in the grain. Fully cleared, the hardened grain blocks affect the screening, and the screening effect on wet grains is poor, which affects post-processing and storage; in addition, the traditional dryer has a slow drying speed and high energy consumption, and cannot fully dry the hardened grain blocks. Dry, resulting in different drying results

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