A clean production process of potato starch

A clean production and potato starch technology, which is applied in the field of potato starch processing, can solve the problems of many reverse swirling stages, high energy consumption and water consumption, etc., so as to reduce the swirling stages, save energy and water consumption Effect

Active Publication Date: 2016-06-01
CHINESE RES ACAD OF ENVIRONMENTAL SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that in the prior art, in addition to multi-stage reverse swirl refining, it is necessary to remove coarse fibers and fine slag and replenish a large amount of water through multi-stage reverse swirl, which leads to excessive reverse swirl series in the above technology. Too much energy and water consumption; and then a potato starch processing technology with fewer swirl stages is proposed

Method used

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  • A clean production process of potato starch
  • A clean production process of potato starch
  • A clean production process of potato starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The clean production process of potato starch of the present invention comprises:

[0036] (1) The cassava raw material is transported to the dry impurity removal machine through the belt conveyor for dry impurity removal;

[0037] (2) Send the cassava after dry cleaning to the three-stage paddle cleaning machine for cleaning. During the cleaning process, keep the working water level of the first-stage paddle cleaning machine not lower than 0.5m, and the second-stage paddle cleaning machine The working water level of the third stage paddle cleaning machine is 10cm higher than that of the first stage, and the working water level of the third stage paddle cleaning machine is 10cm higher than that of the second stage; When the water level reaches the overflow port of the washing machine, it reaches the working water level, and the cassava raw material is separated from the solid impurities through the fluctuation of the paddle and enters the subsequent process;

[0038] (...

Embodiment 2

[0043] On the basis of the above, as a variable implementation, such as figure 2 As shown, the top flow from the first stage of the nine-stage countercurrent cyclone is returned to at least one of the three-stage paddle cleaning, filing and desanding to be used as a washing liquid. The process water obtained by dehydration is returned to the rasp mill as slurry replenishment water.

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Abstract

The invention discloses a clean production technology of potato starch. A raw material is subjected to dry cleaning and sent to a tertiary paddle type cleaning machine; the working water level of the primary paddle type cleaning machine is kept not less than 0.5 m; the working water level of the tertiary paddle type cleaning machine is increased by 10 cm for each stage; after cleaning, the raw material is smashed and rasped into a sizing material with solid diameter lower than 1.5 mm; the sizing material is subjected to sand removing, is sequentially subjected to centrifugal separation with separation ratio of 4:1 and secondary counter current centrifugal washing with separation ratio of (3-4):1, wherein the feeding pressure is not less than 0.15 MPa, and the pretreatment sizing material is obtained; the pretreatment sizing material is then subjected to rotational flow concentration, wherein the fraction multiple is 4; the top stream is sent to the primary rotational flow for recycling; the top stream of the primary rotational flow recycle top is sent to the secondary rotational flow recycle; the top stream of the secondary rotational flow recycle top is discharged; the two stage rotational flow recycle separation ratios are sequentially increased by 5% as compared with the rotational flow concentration; the bottom streams of the rotational flow concentration and the two stage rotational flow recycle are sent to a nine stage counter current rotational flow; dehydration and drying are performed after washing. The technology is suitable for starch processing of potato products with low protein content, and water consumption is greatly saved.

Description

technical field [0001] The invention relates to a clean production process of potato starch, which belongs to the technical field of potato starch processing. Background technique [0002] The raw materials of potato starch mainly include potato, sweet potato and cassava, etc. In industry, processing and extracting starch from potato raw materials generally needs to go through technological steps such as cleaning, crushing, sieving, cyclone separation, dehydration, drying and packaging finished products. [0003] Chinese patent document CN101838335A discloses a potato starch separation method and equipment. The raw materials are crushed and sieved and then sent to the concentration step. In this step, the overflow separated by the cyclone is directly discharged from the cyclone system, and the underflow enters the subsequent refining step. Further separation, the refining step is finally separated to obtain underflow starch milk, and the subsequent steps of dehydration, dryi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08B30/04C08B30/02C07K1/14
Inventor潘涔轩刘山红刘闺华汝振广尹洁白艳英苑喜男
OwnerCHINESE RES ACAD OF ENVIRONMENTAL SCI