Preparation method for high protein cottonseed meal and selected device therefor

Abstract

The invention discloses a preparation method for high protein cottonseed meal and a selected device therefor. The preparation method includes delinting cottonseeds, removing impurities of the cotton seeds, and husking; feeding into a husking roller uniformly by a variable frequency feeding device, putting the mixture of husks and kernels after husking into a cottonseed kernel and husk separation device, putting the fine selected cotton kernel into a double-roller flaking device, then putting into a layered cooker for wetting, steaming, frying to obtain cooked flakes, wherein a medium-temperature medium-wet technology is adopted in the steaming and frying step, so that the protein denaturation is avoided to the greatest extent while the free gossypol content is effectively reduced. Meanwhile a press screw device applicable to the cottonseed kernel and husk separation device and a spiral oil press is provided, so that the cottonseed husking efficiency is high, the prepared high protein cottonseed meal is high in quality, the prepared high protein cottonseed meal has the crude protein content of not less than 52%, the bottom oil of not more than 1.0%, the moisture of not more than 9.0%, the crude fiber of not more than 6.0%, the crude ash of not more than 7.5%, the NSI value of not less than 65% and the free gossypol of not more than 800ppm, and is wide in application and promotion values.

Description

technical field [0001] The invention relates to the technical field of deep processing of oil crops. Specifically, the present invention relates to a method for preparing high-protein cotton meal and the technical field of selecting equipment. Background technique [0002] Cottonseed is an oil plant with high protein and oil content. In recent years, my country's animal husbandry and feed industry have developed very rapidly. Protein is the main raw material for feed and protein raw materials are scarce in my country. At present, the total demand for protein raw materials is 46 million tons, and the supply gap is more than 20 million tons per year, which requires a large amount of imports. [0003] Cottonseed is an oil plant with high protein and oil content. In 2013, the domestic cottonseed output was about 9 million tons, and Xinjiang's output was about 5 million tons. As a cotton-producing area, it ranks first in the country in terms of total output, per unit area yield...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects of poor quality of cottonseed meal and low oil yield in the existing cottonseed pre-pressing and leaching process at home and abroad, as well as the technical status quo that needs to be improved and solved urgently in terms of cottonseed hulling rate, screening and screw pressing equipment, this paper The purpose of the invention is to provide a high-protein cotton meal preparation method and selected equipment. By providing a cottonseed processing method for producing high-protein cotton meal and improving the oil yield and special equipment applicable thereto, the shelling efficiency is high and the preparation Produce high-quality high-protein cotton meal, the obtained high-protein cotton meal has crude protein content ≥ 52%, residual oil ≤ 1.0%, moisture content ≤ 9.0%, crude fiber ≤ 6.0%, crude ash content ≤ 7.5%, NSI value ≥ 65%, free cotton Phenol ≤ 800ppm, good technical effect

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