Method and process for stabilizing online acid sediment of soybean protein

Abstract

The invention discloses a method and process for stabilizing online acid sediment of soybean protein. According to the method, a hydrochloric acid constant-pressure buffer tank is arranged among the output end of a cam type rotor pump, the output end of a hydrochloric acid metering pump and the input end of a static mixer, and opening of the hydrochloric acid metering pump is controlled by a pressure remote controller, so that hydrochloric acid in the buffer tank is kept at constant pressure; a flow switch and a micro-flowmeter are arranged at the outlet end of the hydrochloric acid constant-pressure buffer tank; and an SK-type structure is adopted inside the static mixer. The method is simple in method and convenient to operate, and has the characteristics of eliminating the pulse phenomenon of the hydrochloric acid metering pump generated in the delivering process and the phenomenon that materials are not uniformly deposited or mixed due to the structure defect of the static mixer.

Description

technical field [0001] The invention relates to the technical field of food processing equipment and food processing methods, in particular to a method for stably adding acid online in the acid precipitation section of soybean protein, controlling the uniform mixing of soybean milk and hydrochloric acid, and stabilizing the isoelectric point, which is used to solve the problem of reducing the acid precipitation section The problem of protein loss in Background technique [0002] The mixed soybean milk is directly transported by the cam rotor pump, and is pre-mixed with the hydrochloric acid from the diaphragm quantitative pump in the mixer. The internal structure of the mixer is S-shaped, resulting in uneven mixing of materials and deposition, which is not conducive to the recovery of materials and products. Control of thermotolerant bacteria. [0003] Disadvantages of the original method: [0004] Diaphragm quantitative pump is driven by the motor through the coupling to ...

AI Technical Summary

Problems solved by technology

Continuous pressure and quantitative discharge of hydrochloric acid can be formed by adjusting the reciprocating operation of a certain stroke, but there is a pulse phenomenon during the reciprocating and returning process, and the amount of acid supply is instantaneously unstable, causing the isoelectric point of the acid precipitation liquid to be unstable and affecting the quality of the material. Recycle

[0005] The S-type structure mixer only changes the flow direction of the material, and cannot fully mix the mixed soy milk and hydrochloric acid, and it is easy to accumulate on the back of the blade, which affects the control of heat-resistant bacteria in the product.

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