Unhulled rice threshing device

Abstract

The invention relates to an unhulled rice threshing device. The unhulled rice threshing device comprises a cylindrical sieve device, an unhulled rice conveying device, a vibrating sieve device, a first cyclone separation device, an unhulled rice thresher, a second cyclone separation device and a straw recovering device, wherein the cylindrical sieve device is provided with a first unhulled rice discharge opening and a first sundry discharge opening; the vibrating sieve device is provided with a second unhulled rice discharge opening and a second sundry discharge opening, the second unhulled rice discharge opening communicates with a feed opening of the unhulled rice conveying device, and the second sundry discharge opening communicates with a feed opening of the first cyclone separation device; the first cyclone separation device is provided with a third unhulled rice discharge opening and a third sundry discharge opening, the third sundry discharge opening communicates with a feed opening of the straw recovering device, and the third unhulled rice discharge opening communicates with a feed opening of the unhulled rice thresher; and the second cyclone separation device is providedwith a fourth unhulled rice discharge opening and a fourth sundry discharge opening, the fourth unhulled rice discharge opening communicates with a feed opening of the unhulled rice conveying device,and the fourth sundry discharge opening communicates with a feed opening of the straw recovering device.

Description

technical field [0001] The invention relates to the technical field of agricultural product processing, in particular to a paddy threshing device. Background technique [0002] After the rice is mature, it is harvested by harvesters. The rice harvested by the harvester contains more stalks and incompletely threshed rice ears. Before the rice is milled, the rice should be cleaned of impurities, mainly to remove the straw and rice leaves from the rice. The method adopted is to sieve the rice, the rice falls from the sieve, and the straw is left on the sieve. In addition to the stalks, the ears of rice that have not been fully threshed will also stay on the sieve, and eventually the ears of rice and the stalks will be cleaned out as waste, resulting in a waste of rice. Since the ear of rice containing rice accounts for a very small proportion of waste, if the waste is threshed twice, it will consume a lot of electric energy and increase the cost of machine use. Especially f...

AI Technical Summary

Problems solved by technology

In addition to the straw, the ears of rice that have not been fully threshed will also stay on the sieve, and eventually the ears of rice together with the straw will be cleaned out as waste, resulting in waste of rice

Since the rice ears containing rice account for a very small proportion of waste, if the waste is threshed twice, it will consume a lot of electricity and increase the cost of machine use

Especially for large-scale rice processing, if the sieving time is long, the energy consumption of the sieve will be increased, and it will also take time; if the sieving time is short, a lot of rice will be sieved out with the waste

Paddy is mixed in the waste and also increases the power consumption of the thresher

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