Finishing process for groats of buckwheat

Abstract

The invention discloses a finishing process for groats of buckwheat. A mixture containing a small part of buckwheat hulls, the groats of buckwheat and unshelled buckwheat after husking is firstly screened through a vibration classification screen, oversize products on a lower layer mesh screen enter through a hoister into a color selector for color selection separation, three times of color selection are performed in sequence, separated semi-finished groats of buckwheat are screened and graded through the vibration classification screen, and high quality finished groats of buckwheat are obtained; small grain type unshelled buckwheat selected in the first and the second color selections are evenly mixed with large grain unshelled buckwheat retained by an upper layer screen, and after a cooling-heating treatment, the mixture enters into a huller for secondary husking in batches; and finally, the grain separation rate can reach 99.9 percent, the secondary husking ratio can reach more than 95 percent, the purity of the groats of buckwheat can reach more than 99.9 percent, the unsound grain mass is smaller than or equal to 1 percent, the impurities are less than or equal to 0.10 percent, the broken groats is less than or equal to 1 percent, the groats of buckwheat are bright in surfaces and is clean, and have obvious buckwheat scent, and the purposes of high grain separating quality, high efficiency, high yield and large scale after buckwheat husking can be achieved.

Description

technical field [0001] The invention relates to buckwheat processing, in particular to a buckwheat rice finishing process. 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 the...

AI Technical Summary

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

Images