Method for crushing fine powders of whole rice for fuel ethanol production

Abstract

The invention discloses a method for crushing fine powders of whole rice for fuel ethanol production. The method is characterized in that rice (1) is fed into a pulverizer (3) through a conveying system (2), the crushed fine powder is conveyed and separated by a negative pressure conveying system (4), the fine powder enters a fine powder drum screen (5) for screening, undersize products are qualified fine powders (6) and enter a stirring system (7) for stirring and mixing, the slurry is sent to a next procedure (8), the fine powders enter the fine powder drum screen (5) to be sieved, the oversize products are flaky rice hulls, and the flaky rice hulls (9) are re-crushed by the pulverizer (3). The method has the beneficial effects that the problems that the rice with hulls is crushed and the fine powders are mixed with strip rice hulls are solved, the crushed rice fine powder reaches the control range of qualified particle size, the production process requirements are met, the method isapplied to the fuel ethanol in rice production and the effect is good.

Description

technical field [0001] The invention belongs to the technical field of fuel ethanol production, in particular to a method for pulverizing whole rice fine powder for fuel ethanol production. Background technique [0002] Raw materials for fuel ethanol production mainly include cassava, corn, and old rice. [0003] In the traditional process, rice is used as raw material for the production of fuel ethanol. The rice is dehulled into brown rice and rice husk, and the rice husk is crushed and used as a low-value feed filler. Fuel ethanol is produced, and the waste mash produced is processed to produce by-product feed and biogas. [0004] In the existing technology, rice is used as a raw material for the production of fuel ethanol. The rice is directly crushed into a fine powder with a certain particle size without husking, and fuel ethanol is produced through liquefaction, fermentation, and rectification, and by-product feed and biogas are produced after waste mash is processed...

AI Technical Summary

Problems solved by technology

[0005] The production of fuel ethanol uses rice as the raw material. The rice is crushed with husks, and there are fine powders entrained with rice husk fragments. The particle size of the fine powder is unqualified, which affects the subsequent feed particle size.

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