Method for mechanically separating river crab shell and meat

Abstract

The invention relates to a method for mechanically separating river crab shell and meat, which belongs to the technical field of food processing and producing, and comprises the following steps of: cleaning; cooking; pre-processing, namely removing the shell, branchia, lung and other inedible parts; sorting, namely separating and sorting the crab body, crab claws and crab pincers; and separating the shell from the meat through adopting a belt to extrude the crab body, separating the shell from the meat through adopting a roller to extrude the shell from the meat, and separating the shell from the meat through adopting negative pressure resorption. The method for mechanically separating river crab shell and meat has high automation degree, so the labor intensity of workers is greatly reduced, the production efficiency is increased, the economic benefit is improved, less crab meat is left on the shell, the wastes which are generated during the shell and meat separation process are reduced, the pollution of the crab shell to the environment is decreased, the meat yield of the crab body can reach above 70%, moreover, the crab meat quality is good, and the shell is basically not broken. The total shell and meat separation efficiency of the river crab is improved by above 20 times, and the yield is improved by above 2%.

Description

technical field [0001] The invention relates to a method for mechanically separating shell and meat of river crab, which belongs to the technical field of food processing and production. Background technique [0002] River crab, scientific name Chinese mitten crab, is a rare freshwater product with delicious taste, rich nutrition and high economic value. In recent years, my country's river crab breeding industry has developed rapidly, and its output has increased sharply. According to statistics in 2009, my country's river crab farming involves 30 provinces (municipalities, autonomous regions) across the country, with an area of ​​667,000 hectares, an output of 530,000 tons, and an output value of 2.8 billion. It has become the industry with the largest output value of a single species of freshwater fishery. [0003] At present, my country's river crab products are still mainly sold fresh and alive. However, due to the rapid increase in aquaculture production and the strong ...

AI Technical Summary

Problems solved by technology

[0005] Separation of shell and meat is a key link in the processing of crab powder. At present, the separation of shell and meat of river crabs is basically done manually. After cleaning and cooking river crabs, workers use small tools such as knives, scissors, tweezers, spoons, and pipes to scrape and squeeze them. High labor intensity, low processing efficiency, more residual meat on the shell, resulting in waste, and easy to cause human pollution during processing, affecting product safety

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