Soybean protein concentrate preparation system

Abstract

The present invention relates to a soybean protein concentrate preparation system. An outlet of a raw material temporary storage bin is connected with a solid material inlet of an extractor via a quantitative packing auger, a wet meal outlet of the extractor is connected with an inlet of a wet meal conveyor, an inlet of a new solvent pump is connected with a fresh solvent tube, an outlet of the new solvent pump is connected with a new solvent inlet of the extractor, a concentrated liquid outlet of the extractor is connected with an inlet of a concentrated extract extracting pump, an outlet ofthe concentrated extract extracting pump is connected with an inlet of a first-stage hydrocyclone via a mixed liquid conveying tube, a light phase outlet of the first-stage hydrocyclone is connected with an inlet of a second-stage hydrocyclone, a light phase outlet of the second-stage hydrocyclone is connected to an inlet of a solution temporary storage tank, and bottom parts of the first-stage and second-stage hydrocyclones and solution temporary storage tank are connected to a return port of the powder extractor; and a lower outlet of the solution temporary storage tank is connected with anextract evaporation recovery system via a temporary storage tank transfer pump. The soybean protein concentrate preparation system saves equipment investment, utilizes all powder wastes and greatly improves economic benefits.

Description

technical field [0001] The invention relates to an extraction system, in particular to a soybean concentrated protein preparation system, which can be used for dynamic extraction in industries such as food, environmental protection and chemical industry, and belongs to the technical field of extraction equipment. Background technique [0002] The raw material of concentrated soybean protein is low-denatured puffed soybean meal or white soybean chips desolvated at low temperature. The production process starts from the daily warehouse, which stores raw materials for about one day, which can ensure the stable operation of the leaching workshop; the material is first quantitatively output by the frequency conversion scraper of the daily warehouse, and enters the grading screen (20 mesh) through the elevator, and then goes to the sieve. The material enters the weighing scale for measurement, and then is sent to the temporary storage tank of the leaching workshop through the hois...

AI Technical Summary

Problems solved by technology

[0003] The existing soybean protein concentrate production system has the following defects: 1. The low utilization rate of raw materials leads to a decline in economic benefits

If there is no relevant production line, it can only be sold at a low price, which seriously affects economic benefits

If the raw material is low-denatured expanded soybean meal, this part of high-protein raw soybean meal can only be mixed into the high-temperature meal production line, and can be used as animal feed after being matured, with low economic value

[0004] 2. There must be a screening process: because the original extractor cannot handle high-powder raw materials, it can only handle flake or granular materials

[0006] 4. It must be equipped with an oversized extractor: the strength of the raw material saturated with water and ethanol is poor, and after the material layer is formed, the porosity is low under the pressure of its own weight and the permeability is poor

[0008] 6. The extractor needs to be equipped with a multi-stage solvent circulation pump and grid backwashing system: the solvent circulation spray system is usually not lower than a 12-stage circulation pump, which consumes a lot of power and has many leakage points of pump valves.

The concentrated extract obtained by the soybean protein concentrate production system contains a lot of powder particles. If it flows into the subsequent pipeline, it will cause the valve of the outlet pipe to be blocked. It must be filtered with a filter or grid

The clogging of the filter screen or the grid will lead to the decline or unsustainable effect of the extraction or washing process, and it must be cleaned and maintained frequently; the structure of the grid backwashing system is complex, closed in an explosive solvent environment (full of ethanol vapor), and frequent failures affect the chemical industry. Unit running continuously

[0009] 7. During the working process of the existing extractor, the contact between most of the solid materials and the extraction liquid is laminar flow contact, and the mixing with the extraction liquid is insufficient; Solvents are prone to short circuits, resulting in insufficient extraction power and low extraction efficiency; the extraction path seems to be long, but the utilization rate of the upper screen surface of each group of leaching units is very low

The extractor is long and thin, and the length of the workshop is determined according to the length of the equipment. It has high requirements on the site, and is designed for special non-standard, so it is difficult to increase production or upgrade

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