Extraction apparatus for crab shells

Abstract

A disclosed extraction apparatus for crab shells is characterized in that a liquid outlet of an acid tank (1) is connected with a liquid inlet of a precipitation tank (2), a precipitate outlet of the precipitation tank (2) is connected with a liquid inlet of a water-washing tank (3), and a liquid outlet of the water-washing tank (3) is connected with a liquid inlet of a centrifuge (4) and a liquid inlet of a spray dryer (5); the acid tank (1) is inside provided with a stirring device, an acidity indicating meter and an alkali-liquid tank; the stirring device is disposed at the bottom end of the acid tank, and the alkali-liquid tank is disposed at the top end of the acid tank (1); the alkali-liquid tank also is provided with a linkage valve controlling opening and closing of the alkali-liquid tank; and the linkage valve is controlled by a switch at the outside of the acid tank (1). The provided extraction apparatus for crab shells is simple in structure, convenient to operate, good in drying effect, labor-saving and time-saving, and is suitable for wide popularization and application.

Description

technical field [0001] The invention relates to a crab shell extraction device, which belongs to the technical field of biological equipment. Background technique [0002] my country is rich in crab resources, and the main processing of crabs is to collect large pieces of crab meat under the breast shell and in the claws to process canned crab meat, and some are processed into crab sauce, crab yellow sauce, crab oil and crab flavoring seasoning. and other products. While the crab is processed, a lot of leftovers are produced, including the small feet of the crab and a large amount of crab shells. Crab shell is the main raw material for the production of chitin. The content of chitin in crab shell is as high as 58-85%. Liver and kidney disease, high blood pressure, obesity and other diseases are beneficial to the prevention of cancer cell lesions and adjuvant radiotherapy and chemotherapy in the treatment of tumor diseases. Based on the above advantages, it is of great signi...

AI Technical Summary

Problems solved by technology

[0003] At present, the extraction devices for extracting chitin include independent acid tanks and alkali tanks. After the acid extraction, the alkali extraction, the acid solution in the acid tank and the lye solution in the alkali tank need to be treated separately and intensively. The processing steps are many, the operation is complicated, and the construction period In addition, since the chitin extracted from crab shells is a neutral mucopolysaccharide, it is a high molecular weight substance, and its molecular weight can reach more than 1 million. Therefore, common drying methods such as decompression drying, far-infrared drying, electric Heat drying methods are difficult to dry or difficult to dry completely

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