A new processing technology of buckwheat

Abstract

The invention discloses a new processing technology for buckwheat grains. Hulled mixed material containing few buckwheat husks, the buckwheat grains and buckwheat with hulls undergoes screening by a vibrating classification screen firstly, oversize material on a lower-layer screen net enters a color sorter for color sorting separation through an elevator and sequentially undergoes color sorting of three times, and the separated half-finished buckwheat grains are screened and classified through the vibrating classification screen for obtaining the high-quality finished buckwheat grains; the small-grain buckwheat with the hulls separated through primary and secondary color sorting and the large-grain buckwheat with the hulls intercepted by an upper-layer screen net are uniformly mixed, undergo cold treatment and hot treatment and then enter a huller for secondary hulling in a batched mode; the separation rate of final grain material reaches 99.9%, the secondary hulling rate is higher than 95%, the purity of the buckwheat grains is higher than 99.9%, the mass of unsound grains is smaller than or equal to 1%, the mass of impurities is smaller than or equal to 0.10%, the mass of broken grains is smaller than or equal to 1%, the buckwheat grains are bright and clean in surface and have obvious buckwheat fragrance, and the purposes of high quality, high efficiency, high yield and large scale of grain separation of the hulled buckwheat can be realized.

Description

technical field [0001] The invention relates to buckwheat processing, in particular to a new buckwheat processing technology. Background technique [0002] Buckwheat belongs to the dicotyledonous Polygonaceae, buckwheat genus, its growth period is short, suitable for growth in cold climate environment, commonly known as jade wheat, triangle wheat, rye wheat, is a very ideal miscellaneous grain crops. Because of its unique nutritional value, it has been paid more and more attention by people. However, based on the characteristics of buckwheat such as small size, strong shell toughness, large kernel brittleness, and small gap between kernel and shell, coupled with the limitations and imperfections of the mechanical properties of the existing buckwheat shelling machine, the existing shelling machine is used for its It is very difficult to shell the buckwheat. The chaff cannot be completely removed after the buckwheat is shelled by the sheller. According to the requirements of ...

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Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the defects of the separation of shelled buckwheat and shelled buckwheat and the low secondary shelling rate in the existing buckwheat processing process, and the buckwheat contains a small part of buckwheat husk, buckwheat and The mixture of hulled buckwheat is firstly screened through the vibrating grading sieve A equipped with upper and lower screens, using the particle size difference between hulled buckwheat and buckwheat and automatic grading characteristics, with the help of a screen with suitable mesh and movement form For the first paddy separation, the buckwheat husks are sent to the collection bin of the air net system by the suction type vertical suction separator; The material is broken buckwheat and dust, and enters the collection bin; the material on the lower screen is mainly buckwheat and some small-grained buckwheat with shells, and this part of the mixed material enters the color sorter through the elevator for color separation and separation. The shelled small-grained buckwheat is mixed with the upper sieve (large-grained shelled buckwheat) and then enters the shelling machine for secondary shelling. The separated qualified pure buckwheat continues to be used in two layers. The vibrating grading sieve B of the sieve is screened, and the broken buckwheat and light impurities are separated again to produce high-purity and high-quality buckwheat products

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