CN1070915A

CN1070915A - Novel process with the swirler corn starch separating

Info

Publication number: CN1070915A
Application number: CN 92109976
Authority: CN
Inventors: 年文恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-13
Filing date: 1992-10-13
Publication date: 1993-04-14

Abstract

A kind of novel process with the swirler corn starch separating, its technical essential is to adopt the micro-spin liquid separator tube to form separate hydrocyclone, with 4-6 grades of placed in-line separate hydrocyclones will sieve, coarse starch milk behind the clean sand, entering swirlers at different levels successively separates, then the underflow of I level swirler directly being entered 5-7 grades of placed in-line separate hydrocyclones washs, starch is thoroughly separated with albumen, and tail level underflow is the purified starch breast, makes finished product through dehydration, drying.It further improves starch quality and yield, and the reduction occupation area of equipment reduces construction investment, and easy handling, maintenance significantly reduce production costs, and alleviate labor intensity of operating staff.

Description

Novel process with the swirler corn starch separating

The present invention relates to a kind of separating, washing W-Gum technology, particularly use the novel process of swirler corn starch separating.

In the starch industry, to produce in the high-quality W-Gum flow process, starch is utmost point the key link with proteic the separation.The shortcoming that the present inventor once adopted tens meters long skewed slots to come the separating, washing W-Gum to exist at the medium and small starch of domestic majority producer, as processing unit, backward in technique, starch recoveries is low, the poor quality, sanitary condition is poor, the skewed slot floor space is big, the building operation expense is high, at adopting many bench centrifuges tandem process or whizzer to separate again the equipment price costliness that the technology separating, washing W-Gum with the swirler washing exists, energy consumption is big, the maintenance and operation conditional request proposes a kind of novel process (patent No. CN88105133.0) of corn starch separating than problems such as height.The swirler and the skewed slot process combined that adopt the spinning liquid separator tube to install have tentatively solved the problem of above-mentioned existence.But, influence the task performance of swirler because of the poorly sealed leakage material of swirler of spinning liquid separator tube assembling.Do not fully phase out skewed slot in addition, the problem that still exists the traditional skewed slot separating, washing starch of above-mentioned employing to bring, this technical process is unfavorable for that W-Gum separates with proteic, is badly in need of further improving.

The technology that the purpose of this invention is to provide a kind of improved separating, washing W-Gum, it adopts the swirler with two kinds of functions of separation and cleaning to finish isolating whole technical process, thereby further improve starch quality and yield, the reduction occupation area of equipment, reduce construction investment, easy handling, maintenance significantly reduce production costs, and alleviate labor intensity of operating staff.

The object of the present invention is achieved like this: adopt the micro-spin liquid separator tube to form separate hydrocyclone, with the placed in-line separate hydrocyclone of 4-6 level will sieve, coarse starch milk behind the clean sand, entering swirlers at different levels successively separates, then the underflow of I level swirler directly being entered the placed in-line separating, washing swirler of 5-7 level washs, starch is thoroughly separated with albumen, tail level underflow is the purified starch breast, makes finished product through dehydration, drying.

Because traditional skewed slot has been completely abolished in technical process of the present invention, all the separate hydrocyclone that uses the micro-spin liquid separator tube to form is finished protein isolate and the whole process of washing starch, so the protein content in can obviously reducing I level underflow starch milk, also can make I level underflow separate the swirler washing through the 5-7 level again, starch is thoroughly separated with albumen, and remove soluble substance in the starch milk as far as possible through washing.So thorough reform traditional technology of this technical process, the cancel all skewed slot, not only reduce the floor space and the construction investment of skewed slot, easy handling and maintenance reduce operator, reduce labor intensity, further reduce production costs, and reduce the microbial contamination chance, reduce acidity, thereby further improve the quality of products and yield.

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a kind of process flow sheet of the present invention.

Fig. 2 is a kind of structural representation of miniature cyclone pipe.

Fig. 3 is a separate hydrocyclone structural representation of the present invention.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is miniature cyclonic separation schematic diagram.

Describe concrete technical process of the present invention in detail according to Fig. 1-5.This W-Gum separating technology, be different from skewed slot separating technology, whizzer separating technology or whizzer fully and add the swirler separating technology, but all adopt the novel process of 11 grades of swirlers, assembling micro-spin liquid separator tube 25 in parallel in the multistage swirler, this micro-spin liquid separator tube 25 is made up of pipe cap 04, body 01, opening for feed 02, overflow port 05, underflow opening 03.According to the output of separating starch and processing requirement micro-spin liquid separator tube 25 with desired number, clamp parallel connection with dividing plate 30 respectively and pack in the swirler, form separate hydrocyclone and separating, washing swirler respectively.During operation, with starch milk at 6-7kgf/cm ²Pressure under, in opening for feed 02 high speed ascending pipe, starch milk the pipe in high speed rotating, because the proportion difference, heavy starch granules produces bigger centrifugal force and is thrown toward tube wall, along with the external spiral stream of high speed rotating rotates along tube wall, drop to bottom underflow opening 03 and flow out, be referred to as underflow; The protein grain that proportion is little produces less centrifugal force, rises to the top at the pipe middle part with the rotation of internal screw stream and is flowed out by overflow port, is referred to as overflow.Like this, starch in the starch milk and albumen are just separated comes.

The present invention is made up of 11 grades of swirlers, the I level is a segregation section to the V level, VI level to XI level is the separating, washing section, in every grade of swirler respectively according to the output of institute's separating starch and the micro-spin liquid separator tube of processing requirement different amts in parallel, by dividing plate 30 it is divided into feed chamber I, underflow chamber II and overflow chamber's III in every grade of swirler, the feed chamber I is equipped with tensimeter 26, micro-spin liquid separator tube 25 and opening for feed 27.Will be by feeding pump 2 through 4.5-5.5 ° of Be ' coarse starch milk behind screening, the clean sand at 6-7kgf/cm ²Pressure under, squeeze in the I level swirler 3 by opening for feed 27 and to separate through micro-spin liquid separator tube 25.Overflow after the separation enters overflow chamber's III, discharge by overflow port 29, squeezing into II level swirler 5 through Turo pump 4 again separates, underflow returns I level swirler 3, its overflow is squeezed in the III level swirler 7 by Turo pump 6, underflow returns II level swirler 5, its overflow is squeezed into IV level swirler 9 by Turo pump 8 and is separated, underflow returns III level swirler 7, its overflow is squeezed into V level swirler 11 by Turo pump 10 and is separated, underflow returns in the IV level swirler 9, and its overflow is through the protein-contg Fu Zhishui after thoroughly separating.Send next procedure to extract protein powder.

I level underflow leaves segregation section, squeeze into VI level swirler 14 by Turo pump 13 and carry out separating, washing, its overflow is squeezed into segregation section through Turo pump 2 and is separated, underflow is squeezed into VII level swirler 16 through Turo pump 15, VI level swirler 14 is returned in its overflow, underflow is squeezed into VIII level swirler 18 by Turo pump 17, VII level swirler 16 is returned in its overflow, and underflow is squeezed into IX level swirler 20 by Turo pump 19, and VIII level swirler 18 is returned in its overflow, underflow is squeezed into X level swirler 22 by Turo pump 21, IX level swirler 20 is returned in its overflow, and underflow is squeezed into XI level swirler by Turo pump 23, and X level swirler 22 is returned in its overflow, underflow promptly becomes the purified starch breast, simultaneously, also squeeze into XI level swirler 24, distinguish back previous stage swirler step by step with overflow by Turo pump 23 through 40-45 ℃ of warm water behind the clean sand, so, starch milk is thoroughly washed.So far, from the effusive underflow starch milk of XI level swirler 24 underflow openings, be exactly through fully separating and the purified starch breast that washs.Thereby the separation and the washing of starch milk have been finished.The purified starch breast is made finished product through dehydration, drying.

The present invention removes and is applicable to W-Gum, is applicable to that more albumen washed with separating with starch of starch in other Starch Production such as beans, potato class, cereal.

Claims

1, a kind of novel process with the swirler corn starch separating, it is characterized in that adopting the micro-spin liquid separator tube to form separate hydrocyclone, with the placed in-line separate hydrocyclone of 4-6 level will sieve, coarse starch milk behind the clean sand, entering swirlers at different levels successively separates, then the underflow of I level swirler directly being entered the placed in-line separate hydrocyclone of 5-7 level washs, starch is thoroughly separated with albumen, and tail level underflow is the purified starch breast, makes finished product through dehydration, drying.

2, novel process according to claim 1 is characterized in that each interior micro-spin liquid separator tube of separate hydrocyclones at different levels clamps parallel connection with dividing plate respectively and fits together.