Processing method for directly cold-pressing oil from rapeseeds

A processing method and rapeseed technology, which are applied in the direction of fat oil/fat production and fat production, can solve the problems of affecting the quality of refined oil and the efficiency of oil production, affecting the treatment of rapeseed cake, and low separation efficiency, so as to improve the skin and kernel. Separation efficiency, improved peeling rate, simple and convenient operation

Inactive Publication Date: 2017-11-03
望谟县布依王油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to separate the broken skins and kernels before pressing will directly affect the quality of the finished oil and the efficiency of oil extraction, and will also affect the further processing of rapeseed cake
The wind-lifting separation in the prior art is to use wind force to separate components with different qualities. This separation method has low separation efficiency and poor separation accuracy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of processing method of direct cold pressing of rapeseed oil that the present invention proposes comprises the following steps:

[0021] S1, drying and cleaning: collect the rapeseed whose production date is June, and screen the rapeseed through a vibrating sieve and a filter screen to remove impurities such as sand, soil, fruit shell, shriveled seeds, rape stems and leaves;

[0022] S2, rapeseed pretreatment: frying the screened rapeseed oil at a temperature of 40°C, frying the water in the rapeseed to ensure that the water content in the rapeseed is 2%;

[0023] S3, crushing and peeling: put the dried rapeseed in a shelling sorter for grinding, crushing and peeling to obtain crushed and peeled rapeseed, with a peeling rate of 96%; Percentage of rapeseed mass;

[0024] S4, separation of skins and kernels: put the materials in S3 into an air separator, remove the shells of rapeseeds by sorting, and obtain dehulled rapeseed kernels, with a peeling rate of 90%; th...

Embodiment 2

[0028] A kind of processing method of direct cold pressing of rapeseed oil that the present invention proposes comprises the following steps:

[0029] S1, Drying and cleaning: collect the rapeseed whose production date is from May to June, and screen the rapeseed through a vibrating sieve and a filter screen to remove impurities such as sand, soil, fruit shell, shriveled seeds, rape stems and leaves ;

[0030] S2, rapeseed pretreatment: frying the screened rapeseed oil at a temperature of 45°C, frying the water in the rapeseed to ensure that the water content in the rapeseed is 3%;

[0031] S3, crushing and peeling: put the dried rapeseed in a shelling sorter for grinding, crushing and peeling to obtain crushed and peeled rapeseed, with a peeling rate of 96%; Percentage of rapeseed mass;

[0032] S4, separation of skins and kernels: put the materials in S3 into the winnowing machine, remove the shells of rapeseeds by sorting to obtain dehulled rapeseed kernels, with a peelin...

Embodiment 3

[0036] A kind of processing method of direct cold pressing of rapeseed oil that the present invention proposes comprises the following steps:

[0037] S1, Drying and cleaning: collect the rapeseed whose production date is from May to June, and screen the rapeseed through a vibrating sieve and a filter screen to remove impurities such as sand, soil, fruit shell, shriveled seeds, rape stems and leaves ;

[0038] S2, rapeseed pretreatment: frying the screened rapeseed oil at a temperature of 60°C, frying the water in the rapeseed to ensure that the water content in the rapeseed is 2%;

[0039] S3, crushing and peeling: put the dried rapeseed in a shelling sorter for grinding, crushing and peeling to obtain crushed and peeled rapeseed, with a peeling rate of 96%; Percentage of rapeseed mass;

[0040] S4, separation of skins and kernels: put the materials in S3 into an air separator, remove the shells of rapeseeds by sorting to obtain peeled rapeseed kernels, and the peeling rate...

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PUM

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Abstract

The invention discloses a processing method for directly cold-pressing oil from rapeseeds, which includes the following steps: (S1) drying and cleaning: rapeseeds, the production date is May or June, are collected, and the rapeseeds are screened by a vibrating screen and a filter screen; (S2) rapeseed preprocessing: the screened rapeseeds are stir-fried under the stir-frying temperature of 40 DEG C to 60 DEG C until the moisture in the rapeseeds are removed, ensuring that the moisture content in the rapeseeds is 2 to 5 percent; (S3) grinding and shelling: the dried rapeseeds are put into a shelling and separating machine, and are ground and shelled; (S4) shell and kernel separation: the material in S3 is put into a winnower, and the shells of the rapeseeds are removed by the method of separation; (S5) milling: the material in S4 is put into an automatic mill and milled; (S6) low-temperature pressing. The invention provides a high-nutritional value and health-care rapeseed oil production method which is simple, convenient and reasonable in process, and the processing method can provide technical support for the small-scale production of special oil, and is suitable for being popularized in the technical field of edible oil production.

Description

technical field [0001] The invention relates to the technical field of rapeseed processing, in particular to a processing method for directly cold-pressing rapeseed to produce oil. Background technique [0002] Rapeseed, also known as brassica seed, is the fruit of rapeseed, a cruciferous crop. The siliques are long, have many pods, and the grains are full. The oil content in rapeseed is 37.5%-46.3%. According to the different types of rapeseed, its oil content is slightly different. The fruit of rapeseed is silique, that is, rapeseed. The silique is composed of three parts: fruit peck, fruit body and fruit handle. After the siliques are mature, due to the dehydration and contraction of the petals, they can crack automatically. The seeds are spherical or oval, and are composed of three parts: the seed coat, the embryo and the remains of the endosperm. The chemical composition of seeds, generally nitrogen-containing rapeseed rapeseed (5 sheets) 3.9%-5.2%, protein 24.6%-32....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B1/04C11B1/02C11B1/08
CPCC11B1/02C11B1/04C11B1/06C11B1/08
Inventor 王元银
Owner 望谟县布依王油脂有限公司
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