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Dry type cassava starch extraction process

A tapioca starch and process technology, applied in the field of dry tapioca starch refining process, can solve the problems of high waste water treatment cost, high equipment cost, large plant area, etc., achieve low equipment cost and labor cost, reduce production cost, and improve economical effect of benefit

Active Publication Date: 2012-12-12
李文胜 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tapioca starch is extracted by water milling process, which has the following defects: 1. Large water consumption and power consumption, high production cost; 2. Large amount of wastewater generated during the extraction process, high wastewater treatment cost, affecting the ecological environment; 3. Large plant area , equipment cost is high, manpower consumption is big, and production procedure is complicated; 4, processing time is long, and output per unit time is little, and production efficiency is low, and yield is unstable; Bleaching powder 0.5 kg / ton and potassium permanganate 0.1 kg / ton to prevent cassava starch from deteriorating. The resulting product has chemical residues, poor product quality, and is not environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A dry cassava starch refining process, which includes the following processing steps: Step A, putting cassava in a polishing machine for polishing, the polishing time is 1min, the polishing speed is 12.5t / h, and the power of the polishing machine is 5.5kw; Step B, putting cassava into an air-cooled ultrafine pulverizer for pulverization, the rotating speed of the pulverizing tool is 2900r / min, wherein, the pulverizing device can pulverize more than 95% of the starch in the cassava, pulverize the fiber below 10% in the cassava, The mesh number of starch is 80 orders, and the mesh number of fiber is 20-80 orders, makes cassava flour; Step C, puts cassava flour into air-flow type sieving machine and separates, and the mesh number of the first sieve cloth is 80 orders, the second The mesh number of the second sieve is 20 mesh, and tapioca starch and tapioca residues are obtained by separating; step D, the tapioca starch is air-dried, cooled and collected by an aggregate devi...

Embodiment 2

[0034] A dry cassava starch refining process, which includes the following processing steps: step A, putting cassava into a polishing machine for polishing, the polishing time is 1.5min, the polishing speed is 25t / h, and the power of the polishing machine is 11kw; B. Put cassava into an air-cooled ultrafine pulverizer for crushing. The rotating speed of the crushing cutter is 3800r / min. Wherein, the crushing device can crush more than 95% of the starch in the cassava, and crush less than 10% of the fiber and starch in the cassava. The mesh number of the fiber is 120 mesh, and the mesh number of fiber is 20-120 mesh, makes cassava flour; Step C, tapioca flour is put into air-flow type sieving machine and separates, and the mesh number of the first sieve cloth is 120 mesh, and the second The mesh number of the sieve is 50 mesh, and the tapioca starch and tapioca residue are obtained by separating; step D, the tapioca starch is air-dried, cooled and collected by a collection devic...

Embodiment 3

[0036] A dry cassava starch refining process, which includes the following processing steps: Step A, putting cassava into a polishing machine for polishing, the polishing time is 1.5min, the polishing speed is 30t / h, and the power of the polishing machine is 13.5kw; Step B, putting cassava into an air-cooled ultrafine pulverizer for pulverization, the rotating speed of the pulverizing tool is 4000r / min, wherein, the pulverizing device can pulverize more than 95% of the starch in the cassava, pulverize the fiber below 10% in the cassava, The mesh number of starch is 160 mesh, and the mesh number of fiber is 20-160 mesh, makes cassava flour; Step C, puts cassava flour into air-flow type sieving machine and separates, and the mesh number of the first sieve cloth is 160 mesh, the second The mesh number of the second sieve is 60 mesh, and the cassava starch and cassava residues are obtained by separating; step D, the cassava starch is air-dried, cooled and collected by an aggregate ...

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Abstract

The invention relates to the technical field of starch extraction process, in particular to a dry type cassava starch extraction process. The dry type cassava starch extraction process includes the steps: placing cassava into a polishing device for polishing; placing the polished cassava into a crushing device for crushing, wherein more than 95% of starch and less than 10% of fibers in the cassava can be crushed by the crushing device so that cassava powder is prepared; feeding the cassava powder into a screening device for separation so that cassava starch and cassava residues are obtained; performing air drying, cooling and collecting the cassava starch by a collecting device; and packaging the cassava starch into a finished product prior to warehousing. The dry type cassava starch extraction process substitutes for a traditional levigation extraction process, can achieve zero water consumption, zero gas consumption and zero discharge, and is free of any chemical preparation, low in equipment cost, labor cost and production cost and high in processing efficiency. The extracted cassava starch is an all-natural product and high in quality, and the process meets the requirements of modern society on environmental protection and is high in economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of starch refining technology, in particular to a dry tapioca starch refining technology. Background technique [0002] Tapioca starch refers to the powder obtained from cassava after starch extraction, dehydration and drying. It includes two types of raw starch and modified starch. It is widely used in food industry and non-food industry, and has a variety of utilization values. [0003] The traditional cassava starch extraction method usually adopts the water milling process, that is, the purchased cassava is first transported to the pool for cleaning, and then the water mill is added with water for disintegration. The crushed cassava starch liquid is crushed for the second time with a water mill to obtain an aqueous cassava starch solution, and the screened cassava starch is bleached with chemical raw materials by a vibrating sieving machine, and then desanded, separated, dehydrated and dried, and ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/00
Inventor 李文胜
Owner 李文胜
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