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Process for separating repeseed kernel from shell and cold extracting oil

A rapeseed husk and process technology, which is applied in the production of fat oil/fat and fat production, can solve the problems of poor market adaptability, increased energy consumption of solvent recovery and high energy consumption

Inactive Publication Date: 2002-03-13
罗永宗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) High energy consumption
Pre-pressing-extraction is to reduce the oil content of the cake to 10-15% by pre-pressing, but no oil is produced during the puffing process, and materials with high oil content (above 46%) are leached, which greatly increases the energy consumption of solvent recovery and oil refining. the cost of
[0005] (2) Poor product adaptation to the market
All products of this process are refined oil, which has poor adaptability to the market and affects sales

Method used

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  • Process for separating repeseed kernel from shell and cold extracting oil
  • Process for separating repeseed kernel from shell and cold extracting oil

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Embodiment Construction

[0029] First, the rapeseed is classified with a grading sieve to separate the small grains. The graded rapeseed is sent to the conditioning machine. The front part of the conditioning machine is a horizontal steam tube bundle dryer, and the rear part is a blower. The rapeseed is first heated to 40-90°C, and then cooled by strong wind to below 30°C. After tempering, the rapeseed with brittle shell and tough kernel is sent to the toothed roller sheller for shelling, and then the shell and kernel are separated by vibrating screening machine and wind separator. The husk is directly leached to extract the contained oil, and the rapeseed husk is the secondary by-product of this process. The rapeseed kernels are sent to a continuous screw press and cold-pressed at room temperature to obtain all-natural rapeseed oil, which is not refined but has the appearance of refined oil, and retains all the nutrients and beneficial ingredients in natural oil. Continue to process the cake or di...

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Abstract

The oil extracting process incldues the steps of: modifying repeseed to make the shell become brittle and the kernel become tough; shelling in a shelling machine; separating shell from kernel; leaching oil directly from shell and desolventizing and refining the leached oil; cold squeezing kernel at normal temperature and depositing or filtering to obtain rapeseed kernel oil. The present inventionhas the advantages of simple technological process, low oil producing cost, high produce quality and high value of side product.

Description

Technical field: [0001] The present invention is related to rapeseed oil extraction process. technical background: [0002] Most of the existing rapeseed oil extraction adopts the pre-extraction-extraction process. This process is to grind the rapeseed with skin, steam and fry, pre-extract oil and cake, hydrate and refine the oil to obtain secondary oil, and extract the cake to obtain For oil and meal, desolventize and refine the oil to obtain secondary oil or refined oil, and desolventize the meal to obtain rapeseed meal. The secondary oil produced by this process is brownish black, and further refining will not only increase the cost, but also lose nutritional and beneficial ingredients such as vitamin E, carotene, and phytosterols during the refining process. Synthetic antioxidants are added to refined oils. The obtained meal is brown-black, and due to the high fiber content, the metabolizable energy is very low; because the hull contains a large amount of anti-nutritio...

Claims

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Application Information

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IPC IPC(8): C11B1/06C11B1/10
Inventor 罗永宗
Owner 罗永宗
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