Method for residue-juice separation after crushing fresh sweet potatoes

A technology for slag separation and sweet potato separation, which is applied in the field of slag and pulp separation after fresh potato crushing, can solve the problems of cost, high starch loss rate, supply and other problems, and achieves the effects of solving loss and waste, stable quality and performance, and prolonging storage time.

Inactive Publication Date: 2012-08-01
南阳天冠种业有限公司
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Problems solved by technology

The technical points are not easy to grasp. More importantly, the starch loss rate of the traditional starch processing technology is very high, and the use of starch cannot meet the cost requirements of industrial production. Moreover, in the existing domestic achievements, there are generally cost problems, so it is impossible to Applied to the supply of bio-energy raw materials, and the starch rancidity speed is fast, which is not conducive to storage

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Embodiment Construction

[0014] A method for separating slag and slurry after crushing fresh potatoes, it comprises the following steps:

[0015] a. Material selection: In order to reduce the cost of starch processing, first, establish high-quality high-starch sweet potato varieties, such as high-starch sweet potato varieties special for ethanol production Xushu 22, detoxified Xushu 18, Shangshu 19, Yushu 7, etc.;

[0016] b. Cleaning: Put the selected potato pieces into the cleaning conveyor with a small shovel, and automatically clean and remove stones in turn to ensure that the raw materials are clean and stone-free. The water intake should be sufficient, 1.0-1.5 tons per ton of fresh potatoes;

[0017] c. Crushing and filtering: input the washed potato pieces into the curved net extrusion type milling machine, and water is added to complete the pulverization of sweet potatoes, the filtration of fine potato flour, and the separation of starch slurry and potato residues; The extrusion type flour mi...

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Abstract

The invention discloses a method for residue-juice separation after crushing fresh sweet potatoes. The method comprises the following steps: material choosing; cleaning; crushing and filtering; fine screening and sand removing; precipitating; cleaning; and dehydration transporting. The method which adopts technical processes of residue-juice separation, cleaning and precipitation makes starch in the juice be separated out through repeatedly cleaning, precipitating and separating on condition that the quality of starch is not influenced, so a loss waste phenomenon of starch is fundamentally solved; and the self oxygen insulation effect of the juice and the oxidation resistance of an antioxidant BHT in the precipitation process, and the pH value of about 6.2 of the juice make the shelf life be comprehensively increased to 300-350 days, so a problem of easy generation of oxidation and acetification during storage of the fresh juice is solved, and the quality of the fresh juice is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sweet potato starch extraction methods, and in particular relates to a method for separating slag and slurry after crushing fresh potatoes. Background technique [0002] In recent years, with the increasingly tense energy supply situation, the development of renewable bio-energy has become a major measure of my country's energy strategy, which has been confirmed in the just-promulgated "Energy Law". In the previous period of bio-energy development, due to the large-scale use of grain raw materials, it had an impact on my country's food security. Therefore, at the end of 2006, the state issued a document stating that the development of fuel ethanol must be "not to compete with others for food, not to compete with others." At the same time, a subsidy policy was introduced to encourage the development of non-grain raw material crops. Under such circumstances, many provinces in the country have formulated pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/00C08B30/02C08B30/04C08B30/06
Inventor 马如斌李国昀刘海洋
Owner 南阳天冠种业有限公司
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