Impurity removal production method of sweet potato starch

Abstract

The invention is applicable to the technical field of starch processing, and provides a sweet potato starch impurity removal production method, which comprises a mounting plate, the front surface of the mounting plate is fixedly connected with a drainage pipe of a continuous U-shaped structure, and one side of the mounting plate is fixedly provided with a water pump for conveying wastewater into the drainage pipe; the number of the sand discharging pipes is multiple, each sand discharging pipe is fixedly connected to the multiple U-shaped surfaces of the bottom of the water discharging pipe and communicates with the interior of the water discharging pipe, and a sealing plug used for blocking the interior of each sand discharging pipe is inserted into the corresponding sand discharging pipe; and the lifting mechanism is arranged on the mounting plate and can enable the multiple sealing plugs to move up and down at the same time. Wastewater can be slowly conveyed into the drainage pipe through the water pump, starch can flow out of one side of the drainage pipe along with water, fine gravel with large density can be accumulated at the bottom of each U-shaped structure in the drainage pipe, and the effect of removing the gravel from the wastewater can be effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of starch processing, and in particular relates to a method for removing impurities from sweet potato starch. Background technique [0002] Starch is a high molecular carbohydrate, a polysaccharide composed of a single type of sugar unit. The basic structural unit of starch is α-D-glucopyranose, and the covalent polymer formed by the glycosidic bond after the glucose is removed from the water molecule is the starch molecule. Sweet potato starch, also known as sweet potato starch, sweet potato starch, sweet potato starch, potato starch, mountain flour, etc., is a powder made from sweet potato starch, etc. Generally, sweet potato powder is granular, with coarse grains and fine grains. Coarse grains are best for home purchases. Sweet potato starch is the same as corn starch. It will become viscous after being melted in water, and sweet potato powder has a higher viscosity than corn starch. Therefore, sweet po...

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Problems solved by technology

[0003] At present, during the production and processing of sweet potato starch, waste water will be produced through steps such as washing, crushing, and impurity removal. The waste water contains three substances: starch, water, and fine sand. In order to avoid waste and reduce production costs, it will be The water and starch are collected for reuse, but there is currently no effective way to filter out the fine sand in the wastewater, so it is necessary to design a production method for removing impurities from sweet potato starch to solve this problem

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