Device for extracting protein from corn starch wastewater and preparation method for device

Abstract

The invention particularly discloses a device for extracting protein from corn starch wastewater and a preparation method for the device, and aims at solving the problems that existing starch wastewater treatment employing physical and chemical methods is complicated in procedure and relatively high in cost, and exceeds the standard in emission. The device for extracting protein from corn starch wastewater comprises a membrane separator and a regulating tank, wherein the regulating tank is communicated with the corn starch wastewater; a high-pressure water pump is arranged on a pipeline between the regulating tank and the membrane separator; the membrane separator comprises a shell; a plurality of tubular membranes are arranged at the bottom of the shell; an air hose of which the bottom end is sealed is arranged near the tubular membranes; a plurality of vortex holes formed along the tangential direction of a pipe wall are formed in the air hose; and an air pump which is communicated with the air hose is arranged at the upper end of the air hose. The structure and the technological process are reasonable and reliable in design; through separation of the corn starch wastewater once again, the phenomenon that the environment is polluted by wastewater is completely eradicated, and a protein product is obtained; meanwhile, through the arrangement of the air hose, the separation efficiency and effect are improved; and the device has the advantages of being simple in procedure, relatively low in cost, and convenient to operate.

Description

technical field [0001] The invention relates to protein extraction technology, in particular to a protein extraction device from cornstarch wastewater and a preparation method thereof. Background technique [0002] The extraction of cornstarch from corn needs to go through the process of "first immersion, second grinding, and third separation": "first immersion" means that after the corn is cleaned and sieved to remove impurities such as corncobs and stones, it is soaked in the countercurrent method of soaking acid. After that, it is sent to the crushing process for crushing; "second grinding" means that the germ and fiber in the corn are separated after the soaked corn is coarsely ground and finely ground; starch and gluten. [0003] In the production process, water is added in multiple process steps starting from soaking, and after the final separation process "gluten concentration, dehydration, and drying", the waste water from which the gluten concentrate is extracted i...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of cumbersome procedures, excessive discharge and high cost in the physical and chemical treatment of existing starch wastewater, the present invention provides a protein extraction device for corn starch wastewater and a preparation method thereof

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