Method for squeezing oil by wetting, steaming and frying cottonseed kernels

Abstract

The invention belongs to the technical field of vegetable oil expression, and particularly relates to a cottonseed kernel wetting, steaming and frying oil expression method which comprises a first-stage wetting system, a flaking mill, a second-stage wetting system, a multi-layer steaming and frying pot and an oil press which are sequentially connected in series, and is characterized by comprising five steps of first-stage wetting, flaking, second-stage wetting, steaming and frying and oil expression. The production capacity and the production efficiency are improved, the product quality is stable, and water and energy are saved.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil extraction, and in particular relates to a method for moistening, steaming, frying and extracting oil from cottonseed kernels. Background technique [0002] Cottonseed kernel is a by-product of cotton, and the oil content of cottonseed kernel is about 11% to 15%, so the extraction of cottonseed oil from cottonseed kernel has great economic value, and cotton oil has been widely used in the catering industry as frying or cooking oil, The traditional cottonseed kernel oil extraction process adopts high moisture steaming and frying oil extraction method, but this oil extraction method has the following problems: [0003] 1. In order to achieve the effect of steaming and frying, the moisture of the material embryo needs to be increased from about 10% to 18-22%, resulting in a waste of water resources; 2. When steaming and frying, directly add the required water, the wetting is not uniform and suf...

AI Technical Summary

Problems solved by technology

[0003] 1. In order to achieve the effect of steaming and frying, the moisture content of the raw material needs to be increased from about 10% to 18-22%, resulting in waste of water resources; Product quality of subsequent oil extraction;

[0004] 3. Turn 18-22% of the moisture in the blank into direct steam through indirect steam heating, which wastes a lot of heat energy, and the steam is discharged into the atmosphere, causing environmental pollution

[0005] 4. In the process of steaming and frying, due to the high moisture content of the raw material and the long steaming time, the production capacity cannot be effectively improved, the efficiency is low, the requirements for human operation are high, and the equipment capacity is limited

Images