Post-processing technology for buckwheat

Abstract

The invention discloses a post-processing technology for buckwheat. Hulled mixed materials with a few buckwheat husks, a little buckwheat groat and a little unhusked buckwheat are screened through a vibration classification screen, materials on a lower-layer screen sieve enter a color selector through a lifter for color selecting separation, three times of color selection are carried out in sequence, semi-finished buckwheat groat obtained through separation is screened and classified through the vibration classification screen, and high-quality finished buckwheat groat is obtained; small unhusked buckwheat obtained through color selection of the first time and color selection of the second time is evenly mixed with large unhusked buckwheat stopped on an upper-layer screen, and mixtures enter a husker in batches for secondary husking after cold and heat treatment; and the final material and grain separation rate is 99.9%, the secondary husking rate is above 95%, the purity of buckwheat groat can be above 99.9%, the unsound grain mass is smaller than or equal to 1%, impurities are smaller than or equal to 0.10%, broken groat is smaller than or equal to 1%, the surface is bright and clean, the remarkable buckwheat fragrance is achieved, and the aims of the high quality, high efficiency, high yield and large scale of material and grain separation are achieved after buckwheat husking.

Description

technical field [0001] The invention relates to buckwheat processing, in particular to a post-processing technology of buckwheat. 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...

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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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