Method of processing cotton seeds

Abstract

The invention relates to the technology field of crop seed processing. A method of processing cotton seeds comprises following technology steps: an acid treatment solution is prepared, which comprises the following main components in percentage by weight: 10-15% of H2SO4, 0.2% to 0.4% of foaming agent and 0.15 to0.3% of activating agent. The reserved acid treatment solution and cotton seeds are evenly transported to a stirring tank in a fixed amount and stirred. Cotton seeds processed by the acid treatment are transported to a drying tank, and sequentially subjected to processes of carbonization, friction, winnowing, and gravity separation. Naked seeds selected from the processed cotton seeds are put in a spray stirrer, sprayed for 30 to 60 seconds with an alkali solution with a concentration between 10 to 15%, and the solution consumption amount is around 20 to 30 kg for a ton of naked seeds. The dried naked seeds are polished, and then subjected to processes of secondary winnowing and gravity separation, and finally the qualified seeds are packaged and stored. The method of processing cotton seeds has the advantages of low demand on technology, easy and feasible operation, not only decreases the residual acid rate and the residual lint rate, but also largely increases production capacity, therefore production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of crop seed processing, in particular to the processing technology for cotton seed preparation before planting. Background technique [0002] After the cottonseed is separated from the cotton, there are still a lot of residual lint attached to the surface of the cottonseed. When the seeder sows, because the lint on the surface of the cottonseed is entangled with each other, it hinders the smooth spreading of the seeds from the planter, which seriously affects the quality of the cottonseed. For mechanical sowing, before sowing, the cottonseed must be processed to completely peel off the remaining lint from the surface of the cottonseed. At present, the commonly used process is to use dilute sulfuric acid or foam acid processing process. That is: the sulfuric acid solution stirs the cottonseeds, rubs the cottonseeds with a friction cylinder after being dried by a drying cylinder, and then obtains cotton seed...

AI Technical Summary

Problems solved by technology

[0010] The above-mentioned prior art, regardless of the foam acid or the dilute sulfuric acid process, has relatively high requirements on the concentration and dosage of sulfuric acid and the drying and carbonization temperature. If there is a slight negligence, the residual acid and velvet will exceed the standard, affecting the appearance and germination rate of the seeds. At present, ammonia solution is used to neutralize the residual acid, but it will affect the germination rate, and cannot guarantee the seed quality and seed drug coating

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