Surimi wastewater protein extracting and purifying precipitation tank

Abstract

The invention discloses a surimi wastewater protein extracting and purifying precipitation tank comprising a tank body. The tank is characterized in that the upper part of the tank body is provided with a feeding pipe; the feeding pipe is provided with a rotor flow meter and a precipitation flocculant liquid inlet pipe; the interior of the tank body is axially provided with a first stirrer, the first stirrer comprises a rotating shaft and stirring blades fixed on the lower part of the rotating shaft, and the upper part of the rotating shaft is provided with a fan-shaped foam baffle which can horizontally rotate along the rotating shaft; the foam baffle is located below an outlet of the feeding pipe; a position, having the same height as the foam baffle, on the tank is provided with a foam discharge port; the foam discharge port is connected with a foam recycling tank through a foam discharge pipe; the upper end of the foam recycling tank is connected with a defoaming agent liquid inlet pipe, and the lower end of the foam recycling tank is connected with the lower part of the tank body through a reflux pipe; the side wall of the tank body is provided with a plurality of supernatant discharge pipes, and the bottom of the tank body is provided with a precipitation discharge pipe. The tank has the advantages that the tank can control the input ratio of raw materials to reagents, can discharge foams and recycle the foams for reuse, and improves the protein extracting efficiency which is high.

Description

technical field [0001] The invention relates to a protein precipitation tank, in particular to a surimi wastewater protein refining precipitation tank. Background technique [0002] In recent years, surimi products have been favored by more and more people. However, a large amount of protein-rich wastewater generated during the production and processing of surimi not only pollutes the environment, but also wastes protein resources with potential utilization value. The protein content in these wastewaters can be as high as 5-30 mg / mL (the protein content in fresh milk is about 28 mg / mL). Therefore, it is of great significance to study the extraction and recovery of proteins in surimi wastewater. The existing protein extraction in surimi wastewater requires a settling tank. Currently, the settling tanks on the market are too single in function and not high enough in automation. Foam processing, lack of recycling devices, resulting in a certain degree of waste of raw materials...

AI Technical Summary

Problems solved by technology

The existing protein extraction in surimi wastewater requires a settling tank. Currently, the settling tanks on the market are too single in function and not high enough in automation. Foam processing, lack of recycling devices, resulting in a certain degree of waste of raw materials and reagents, etc., so it is necessary to develop a new type of sedimentation tank to meet the demand

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