Husk crushing and sorting system for walnuts and sorting technology

Abstract

The invention relates to a husk crushing and sorting system for walnuts and a sorting technology. The husk crushing and sorting system comprises a hammering type husk crushing machine, a centrifugal husk crushing machine, a winnowing machine, a rolling filtering screen and a photoelectric color selector, wherein the centrifugal husk crushing machine is arranged between the hammering type husk crushing machine and the winnowing machine; the hammering type husk crushing machine, the centrifugal husk crushing machine, the winnowing machine, the rolling filtering screen and the photoelectric color selector are connected through a conveying belt; the rolling filtering screen is connected with a material feeding hopper of the centrifugal husk crushing machine through a backflow conveying belt. The sorting technology for the walnuts comprises the specific steps: performing pretreatment, boiling and air-drying; performing husk crushing including hammering type husk crushing and centrifugal husk crushing; performing sorting including winnowing sorting and filtering screen sorting; performing photoelectric color selection. The husk crushing and sorting system for the walnuts can be continuously operated, is short in production period and high in feasibility, can be used for realizing complete husk crushing of the walnuts and complete separation between husks and kernels, and is high in quality, high in efficiency and low in labor cost.

Description

technical field [0001] The invention relates to a sorting system and a sorting process for broken nut shells, in particular to a sorting system and a sorting process for broken walnut shells, and belongs to the technical field of nut shelling machinery. Background technique [0002] Walnut is a plant food, rich in unsaturated fatty acids, and is an excellent substitute for animal protein food. However, the walnut shell is hard, and there are multiple hard septums connected to the shell inside. It is very difficult for people to shell the walnut kernel in batches. At present, a single machine is used to hammer the shell and then Sorting is carried out manually, or sorting by air separator after mechanical crushing and manual sorting, or filtering and screening after mechanical crushing and manual sorting. Since walnuts are a natural product as a nut, The impact strength of fruit shells varies, and it is difficult to avoid unbroken or over-broken results by using the hammer-t...

AI Technical Summary

Problems solved by technology

However, the walnut shell is hard, and there are multiple hard septums connected to the shell inside. It is very difficult for people to shell the walnut kernel in batches. At present, a single machine is used to hammer the shell and then Sorting is carried out manually, or sorting by air separator after mechanical crushing and manual sorting, or filtering and screening after mechanical crushing and manual sorting. Since walnuts are a natural product as a nut, The impact strength of fruit shells varies, and it is difficult to avoid unbroken or over-broken results by using the hammer-type shell crushing method, which will affect the quality and efficiency of subsequent sorting and separation of shells and kernels. Crushing the walnuts again, if you continue to use the hammer crusher to crush the walnuts, it will often lead to over-crushing of the walnuts. Therefore, manual sorting is required for unbroken or over-broken walnuts, which wastes manpower and material resources. The rate is poor and the rate of broken kernels is high, resulting in low processing efficiency

In addition, the various links of the existing walnut processing operation methods, such as shell crushing and sorting, rely on the cooperation of manpower, which is not conducive to the realization of assembly line production, and can only be carried out in small batches or intermittent production processes, and the processing efficiency is low.

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