CN109384853A - A kind of preparation method of buckwheat starch - Google Patents
A kind of preparation method of buckwheat starch Download PDFInfo
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- CN109384853A CN109384853A CN201811147560.4A CN201811147560A CN109384853A CN 109384853 A CN109384853 A CN 109384853A CN 201811147560 A CN201811147560 A CN 201811147560A CN 109384853 A CN109384853 A CN 109384853A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
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- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
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- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
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- C08B30/042—Extraction or purification from cereals or grains
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
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Abstract
The invention discloses a kind of preparation methods of buckwheat starch, including following below scheme: (1) buckwheat raw grain carries out miscellaneous clearly remove sand；(2) buckwheat raw grain is classified according to particle size；(3) decortication processing is carried out to buckwheat raw grain；(4) immersion treatment is carried out to the buckwheat polished rice after decortication；(5) precision grinding process；(6) starch fiber separation process；(7) starch milk enrichment process；(8) starch fine purifiation process；(9) it is dehydrated, is dry, sieving, packaging and warehousing.The present invention improves the separating technology of buckwheat starch and albumen, can accomplish the product quality for neither influencing buckwheat starch, and can retain suitable albumen, so that buckwheat starch is had unique nutrition, health-care components, and the protein content in buckwheat starch is between 0.9-1.0%；The buckwheat starch for taking preparation method of the invention to produce has the characteristics that purity is high, fineness are high, and product is in good taste, color is good, and high production efficiency, preparation condition are mild, it is easy to accomplish industrialized production.
Description
Technical field
The present invention relates to a kind of starch producing technology, the preparation method of specifically a kind of buckwheat starch.
Background technique
Vitamin and several mineral materials and citric acid of the buckwheat starch rich in the needed by human body such as vitamin C, B1, B2, E,
Contain Lu Ding composition in the organic acids such as oxalic acid, especially buckwheat starch, the permeability of capillary can be improved, maintains capilary
Circulation, reinforce ascorbic metabolism and it promoted to raise long-pending function in body, thus be usually used in treatment because of blood capillary
The ancillary drug of haemorrhage caused by pipe brittleness and hypertension, the aglycon bucket skin element degraded through rutin can treat bronchitis, cough
It coughs, anti-what is said or talked about disease etc..
With the adjustment of people's dietary structure, improvement of living standard, human body increasingly payes attention to the health-care effect of diet,
Buckwheat starch can be used as food additives or nutritional auxiliary, make an addition in numerous food, can propose the nutrition of plateau food,
It is able to maintain the unique property of buckwheat starch again.
At present in the production process of buckwheat starch, the separating technology of buckwheat starch and albumen is sufficiently complex and difficulty very
Greatly.Therefore, the present invention provides a kind of preparation method of buckwheat starch, improves the separating technology of buckwheat starch and albumen, can accomplish
The product quality for neither influencing buckwheat starch, and can retain suitable albumen, make buckwheat starch have unique nutrition, health care at
Point, and the protein content in buckwheat starch is between 0.9-1.0%.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of buckwheat starch, mentioned above in the background art to solve
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of preparation method of buckwheat starch, including following below scheme: (1) buckwheat raw grain carries out miscellaneous clearly remove sand；(2) by buckwheat raw grain
It is classified according to particle size；(3) decortication processing is carried out to buckwheat raw grain；(4) the buckwheat polished rice after decortication is impregnated
Processing；(5) precision grinding process；(6) starch fiber separation process；(7) starch milk enrichment process；(8) starch fine purifiation process；(9) it takes off
Water, drying, sieving, packaging and warehousing；
The step (4) specifically: the buckwheat polished rice after decortication is placed in the filling of the immersion containing water and is impregnated 48 hours, water temperature is
30-36 DEG C, the weight ratio of buckwheat polished rice and water is 1:25-40；In soaking process, sodium sulfite solution is added in impregnating filling；
It is primary that every 6-8 hours tank was turned over during immersion.
As a further solution of the present invention: the step (2) specifically: by the buckwheat raw grain after screening through Belt Conveying
Machine send to the classification of three-level oscillatory type and selects sieve, is three kinds by the screening of the buckwheat raw grain of variable grain size, classification standard be 2mm with
Under particle be one kind, the particle between 2.5-3mm is one kind, and the particle of 3mm or more is one kind.
As a further solution of the present invention: the step (5) specifically: by buckwheat polished rice and water after immersion with 1:(10-
15) it is sent into needle mill after weight ratio dilution after smashing defibrination and enters bolter progress slurry separation.
As a further solution of the present invention: the step (6) specifically: suspension is sent by pumping to First screen centrifuge
Basket center, under the influence of centrifugal force, slurry, which is fallen into slag trapping chamber, is pumped to next screen centrifuge, continues to pass sequentially through
Four screen centrifuges are separated；Starch granules passes through mesh under the influence of centrifugal force and enters powder-collecting chamber；Ejected wash water is respectively from four
Platform screen centrifuge enters, and carries out cleaning continuous movement, by dregs continuous wash one time in each screen centrifuge；Separate the starch generated
Cream by be pumped into remove sand in sand cleaning machine after enter starch milk enrichment process.
As a further solution of the present invention: the step (7) specifically: starch milk enrichment process uses level Four eddy flow system
System is completed, and level Four cyclone system includes concentrate cyclone M1, concentrate cyclone M2, Protein Separation cyclone A1 and Protein Separation rotation
Flow device A2；Wherein, 10mmA type cyclone pipe a number of built in concentrate cyclone M1, concentrate cyclone M2, by 1-2 Baume degrees
Starch milk be concentrated into 8-10 Baume, and remove the albumen and fiber fines of 70-75%, concentrate cyclone M1, concentrate cyclone M2
It is run using cascaded structure；Most of albumen is separated from starch milk, into concentrate cyclone A1, concentrate cyclone A2
Built-in 10mmA cyclone pipe, concentrate cyclone A1, concentrate cyclone A2 use cascaded structure, by concentrate cyclone M1, concentration eddy flow
The starch concentration and recovery contained in device M2 overflow.
As a further solution of the present invention: the step (8) specifically: the starch milk of 8-10 Baume degrees is sent into, is adopted
In 11 grades of washing systems with 11 rinsing machings of cascaded structure, wherein 15mmB type rotation a number of built in preceding 3 rinsing machings
Flow tube, behind 10mmA type cyclone pipe a number of built in 7 rinsing machings, 10mmB type cyclone pipe built in last 1 rinsing maching；
Starch milk enters from First rinsing maching, and ejected wash water enters implementation only developing technique from last rinsing maching, arrives last one
Platform rinsing maching underflow is smart starch milk up to standard；In smart starch milk precipitating agitator tank, into smart starch milk tank.
As a further solution of the present invention: the step (9) specifically: take off smart starch milk with vacuum drum is pumped into
Wetting system carries out scraper centrifugal dehydration, and the water of removing is sent into washing technique water pot；Starch is on the rotary drum of scraper centrifugal machine
Uniform to form cake layer, adjustment scraper scrapes off 0.05-1cm every time；The cake layer scraped is sent under the action of screw conveyor
It is dried during steam flow is dry, drying temperature≤150 DEG C；Then it is packed in storage after 120 meshes sieve.
As a further solution of the present invention: further including clarification process between step (8) and step (9), clarify process
Specifically: contain a large amount of light impurities, albumen and a small amount of short grained in the overflow of first rinsing maching in 11 grades of washing systems
Starch, the starch of diameter 2um enter two-stage clarification system, and two-stage clarification system includes clarification system C1 and clarification system C2, clear
The built-in 10mmB type cyclone pipe of clear system C1, clarification system C2, and clarification system C1, clarification system C2 are connected using flow is subtracted
Mode connects operation；Clarification system C1 underflow enters 11 grades of washing systems；Clarification system C2 overflow enters starch milk enrichment process
Concentrate cyclone M1 in carry out concentration and recovery；Clarification system C1, clarification system C2 feed pressure are not less than 10kg, clarification system
System C1 underflow Baume degrees is 3-4 Baume degrees.
Compared with prior art, the beneficial effects of the present invention are:
The present invention improves the separating technology of buckwheat starch and albumen, can accomplish the product quality for neither influencing buckwheat starch, and can
Retain suitable albumen, makes buckwheat starch that there is unique nutrition, health-care components, and the protein content in buckwheat starch is in 0.9-
Between 1.0%；The buckwheat starch for taking preparation method of the invention to produce has the characteristics that purity is high, fineness are high, product mouthfeel
Well, color is good, and high production efficiency, preparation condition are mild, it is easy to accomplish industrialized production.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of preparation method of buckwheat starch, including following below scheme: (1) buckwheat raw grain carries out miscellaneous clearly remove sand；(2) by buckwheat raw grain
It is classified according to particle size；(3) decortication processing is carried out to buckwheat raw grain；(4) the buckwheat polished rice after decortication is impregnated
Processing；(5) precision grinding process；(6) starch fiber separation process；(7) starch milk enrichment process；(8) starch fine purifiation process；(9) it takes off
Water, drying, sieving, packaging and warehousing.
The step (1) specifically: buckwheat raw grain is subjected to miscellaneous clearly remove sand by windmill screening；
The step (2) specifically: the buckwheat raw grain after screening is sent through belt conveyor to the classification of three-level oscillatory type and selects sieve,
It is three kinds by the buckwheat raw grain screening of variable grain size, classification standard is 2mm particle below to be a kind of, between 2.5-3mm
Particle be one kind, the particle of 3mm or more is one kind, in this way the shelling of classification more conducively buckwheat raw grain, makes buckwheat raw grain can be with
Complete shelling, more conducively subsequent production.
The step (3) specifically: buckwheat raw grain is sent in two times into buckwheat raw grain peeling machine and is peeled；
The step (4) specifically: the buckwheat polished rice after decortication is placed in the filling of the immersion containing water and is impregnated 48 hours, water temperature is
30 DEG C, the weight ratio of buckwheat polished rice and water is 1:25；During immersion treatment, most of soluble protein of buckwheat polished rice can be molten
Yu Shui；To prevent lactic acid from generating in soaking process, suitable sodium sulfite solution is added by impregnate rice total amount 0.25%；It is soaking
It is primary that every 6 hours tank was turned over during bubble, it is therefore an objective to so that buckwheat polished rice is uniformly impregnated, be turned over tank work available air compressor and come
It realizes；
The step (5) specifically: buckwheat polished rice after immersion and water are sent into needle mill with the weight ratio of 1:10, material into
Left and right sides is divided to enter high-speed rotating Moving plate center after entering needle mill, since material is by the effect of centrifugal force, between moving, determining needle repeatedly
It is violently shaken and broken, to greatest extent by separate out, fiber is formed starch because there is stronger toughness to be not easy to crash
The slag crust of small pieces, rather than the slag crust of thin paste, this is conducive to sieve and wash out free starch；Material forms suspension after grinding；Essence
The purpose of mill is to destroy the combination of starch and non-starch ingredient in buckwheat, makes the maximum separate out of starch, separates fibre
Slag is tieed up, and separates protein and starch granules in endosperm, so that further separation and purification；
The step (6) specifically: suspension is pumped in the basket of First screen centrifuge (LS160M-T) by single screw rod
The heart, under the influence of centrifugal force, slurry are distributed evenly along compass screen surface, and are moved to big footpath direction, and outer rim of going directly falls into collection slag
It is pumped to next screen centrifuge in room, passes sequentially through five screen centrifuges and is separated；Starch pellet is less than sieve due to diameter
Mesh enters powder-collecting chamber by mesh under the influence of centrifugal force；Nozzle is all set before and after the basket of screen centrifuge, and ejected wash water is from the
Five screen centrifuges, which enter to first screen centrifuge direction, carries out washing motion, by dregs cleaning one time in each screen centrifuge, most
Powder-collecting chamber of the Zhongdao up to the first sieve；Isolated starch milk is sent to by defoaming pump remove sand in sand cleaning machine after enter starch milk be concentrated
Process；Sieve mesh mesh number is 120 mesh, cleans water pressure 7kg, and the Baume degrees into the starch milk of starch milk enrichment process is 1
Baume degrees；Fiber separation is mainly that will release the fibrous residue after starch repeatedly to be washed, it is made to contain less free starch
With combine starch；
The step (7) specifically: starch milk enrichment process is completed using level Four cyclone system, and level Four cyclone system includes concentration
Cyclone M1, concentrate cyclone M2, Protein Separation cyclone A1 and Protein Separation cyclone A2；Wherein concentrate cyclone M1, dense
10mmA type cyclone pipe in varying numbers built in contracting cyclone M2, can be concentrated into 8 Baumes for the starch milk of 1 Baume degrees, and remove
The albumen and fiber fines of 70-75%；The flows tandem principle work such as concentrate cyclone M1, concentrate cyclone M2 use, concentration rotation
It flows a large amount of albumen, small fiber and a small amount of starch contained in the overflow of device M1, concentrate cyclone M2 and enters Protein Separation eddy flow
Device A1, Protein Separation cyclone A2；10mmA cyclone pipe built in Protein Separation cyclone A1, Protein Separation cyclone A2, albumen point
It, can be by concentrate cyclone M1, concentrate cyclone from the flows tandem principle work such as cyclone A1, Protein Separation cyclone A2 use
The recovery of starch contained in M2 overflow, and enter concentrate cyclone M1 reciprocation cycle, Protein Separation cyclone A2 overflow contains greatly
The albumen and impurity of amount enter protein salvage process, into before starch fine purifiation process, guarantee the A2 overflow of Protein Separation cyclone
Not starch-containing, M2 underflow starch milk is in 8 Baume degrees；Four cyclone pressure differences are 65kg, Protein Separation cyclone A1, albumen
Separate hydrocyclone A2 feed pressure is 1012 kilograms；
The step (8) specifically: the starch milk of 8 Baume degrees is sent into 11 grades of washing systems containing rinsing maching W1-W11,
Wherein 15mmB type cyclone pipe in varying numbers built in rinsing maching W1-W3,10mmA type in varying numbers built in rinsing maching W4-W10
Cyclone pipe, 10mmB type cyclone pipe built in rinsing maching W11, the flows tandem principle work such as rinsing maching W1-W11 use；Starch milk from
Rinsing maching W1 enters, and ejected wash water enters from rinsing maching W11, and the charging of every level-one is the underflow of previous stage and the overflow of rear stage,
A countercurrent washing is formed, rinsing maching W11 underflow is smart starch milk；Smart starch milk enters sand cleaning machine after secondary remove sand, into
Enter smart starch milk tank；Because buckwheat starch particle is small, so to complete to wash using three kinds of different cyclone pipe series connection, and to pressure
Force request is stringenter, and each cyclone pressure difference is 6kg, and rinsing maching W1 feed pressure is 9kg, and every grade of feed pressure is passed later
Increase 0.5kg, reach rinsing maching W11 feed pressure 14kg, the Baume degrees of rinsing maching W11 underflow essence starch milk is 18 Baume degrees；
The step (9) specifically: be dehydrated smart starch milk with being pumped into scraper centrifugal machine, the water of removing is sent to washing recruitment
In skill water pot；Starch uniformly forms cake layer on the rotary drum of scraper centrifugal machine, and adjustment scraper scrapes off 0.05cm every time；It scrapes
Cake layer be sent to drying plant and be dried, drying temperature≤90 DEG C；Then it is packed in storage after being sieved.
Embodiment 2
Unlike the first embodiment:
The step (4) specifically: the buckwheat polished rice after decortication is placed in the filling of the immersion containing water and is impregnated 48 hours, water temperature is
36 DEG C, the weight ratio of buckwheat polished rice and water is 1:40；During immersion treatment, most of soluble protein of buckwheat polished rice can be molten
Yu Shui；To prevent lactic acid from generating in soaking process, suitable sodium sulfite solution can be added；It was turned over during immersion every 8 hours
Tank is primary, it is therefore an objective to so that buckwheat polished rice is uniformly impregnated, turn over tank work available air compressor to realize；
The step (5) specifically: buckwheat polished rice after immersion and water are sent into needle mill with the weight ratio of 1:15, material into
Left and right sides is divided to enter high-speed rotating Moving plate center after entering needle mill, since material is by the effect of centrifugal force, between moving, determining needle repeatedly
It is violently shaken and broken, to greatest extent by separate out, fiber is formed starch because there is stronger toughness to be not easy to crash
The slag crust of small pieces, rather than the slag crust of thin paste, this is conducive to sieve and wash out free starch；Material forms suspension after grinding；Essence
The purpose of mill is to destroy the combination of starch and non-starch ingredient in buckwheat, makes the maximum separate out of starch, separates fibre
Slag is tieed up, and separates protein and starch granules in endosperm, so that further separation and purification；
The step (6) specifically: suspension is pumped in the basket of First screen centrifuge (LS160M-T) by single screw rod
The heart, under the influence of centrifugal force, slurry are distributed evenly along compass screen surface, and are moved to big footpath direction, and outer rim of going directly falls into collection slag
It is pumped to next screen centrifuge in room, passes sequentially through five screen centrifuges and is separated；Starch pellet is less than sieve due to diameter
Mesh enters powder-collecting chamber by mesh under the influence of centrifugal force；Nozzle is all set before and after the basket of screen centrifuge, and ejected wash water is from the
Five screen centrifuges, which enter to first screen centrifuge direction, carries out washing motion, by dregs cleaning one time in each screen centrifuge, most
Powder-collecting chamber of the Zhongdao up to the first sieve；Isolated starch milk is sent to by defoaming pump remove sand in sand cleaning machine after enter starch milk be concentrated
Process；Sieve mesh mesh number is 160 mesh, cleans water pressure 9kg, and the Baume degrees into the starch milk of starch milk enrichment process is 2
Baume degrees；Fiber separation is mainly that will release the fibrous residue after starch repeatedly to be washed, it is made to contain less free starch
With combine starch；
The step (7) specifically: starch milk enrichment process is completed using level Four cyclone system, wherein concentrate cyclone M1, dense
10mmA type cyclone pipe in varying numbers built in contracting cyclone M2, can be concentrated into 10 Baumes for the starch milk of 2 Baume degrees, and remove
The albumen and fiber fines of 70-75%；The flows tandem principle work such as concentrate cyclone M1, concentrate cyclone M2 use, concentration rotation
It flows a large amount of albumen, small fiber and a small amount of starch contained in the overflow of device M1, concentrate cyclone M2 and enters Protein Separation eddy flow
Device A1, Protein Separation cyclone A2；10mmA cyclone pipe built in Protein Separation cyclone A1, Protein Separation cyclone A2, albumen point
It, can be by concentrate cyclone M1, concentrate cyclone from the flows tandem principle work such as cyclone A1, Protein Separation cyclone A2 use
The recovery of starch contained in M2 overflow, and enter concentrate cyclone M1 reciprocation cycle, Protein Separation cyclone A2 overflow contains greatly
The albumen and impurity of amount enter protein salvage process, into before starch fine purifiation process, guarantee the A2 overflow of Protein Separation cyclone
Not starch-containing, M2 underflow starch milk is in 10 Baume degrees；Four cyclone pressure differences are 70kg, Protein Separation cyclone A1, egg
White separate hydrocyclone A2 feed pressure is 1012 kilograms；
The step (8) specifically: the starch milk of 10 Baume degrees is sent into 11 grades of washing systems containing rinsing maching W1-W11,
Wherein 15mmB type cyclone pipe in varying numbers built in rinsing maching W1-W3,10mmA type in varying numbers built in rinsing maching W4-W10
Cyclone pipe, 10mmB type cyclone pipe built in rinsing maching W11, the flows tandem principle work such as rinsing maching W1-W11 use；Starch milk from
Rinsing maching W1 enters, and ejected wash water enters from rinsing maching W11, and the charging of every level-one is the underflow of previous stage and the overflow of rear stage,
A countercurrent washing is formed, rinsing maching W11 underflow is smart starch milk；Smart starch milk enters sand cleaning machine after secondary remove sand, into
Enter smart starch milk tank；Because buckwheat starch particle is small, so to complete to wash using three kinds of different cyclone pipe series connection, and to pressure
Force request is stringenter, and each cyclone pressure difference is 6.5kg, and rinsing maching W1 feed pressure is 10kg, and every grade of charging pressure later
Power is incremented by 0.5kg, reaches rinsing maching W11 feed pressure 15kg, and the Baume degrees of rinsing maching W11 underflow essence starch milk is 20 Baumes
Degree；
The step (9) specifically: be dehydrated smart starch milk with being pumped into scraper centrifugal machine, the water of removing is sent to washing recruitment
In skill water pot；Starch uniformly forms cake layer on the rotary drum of scraper centrifugal machine, and adjustment scraper scrapes off 1cm every time；It scrapes
Cake layer is sent to drying plant and is dried, drying temperature≤90 DEG C；Then it is packed in storage after being sieved.
Embodiment 3
Unlike the first embodiment:
The step (4) specifically: the buckwheat polished rice after decortication is placed in the filling of the immersion containing water and is impregnated 48 hours, water temperature is
32 DEG C, the weight ratio of buckwheat polished rice and water is 1:30；During immersion treatment, most of soluble protein of buckwheat polished rice can be molten
Yu Shui；To prevent lactic acid from generating in soaking process, suitable sodium sulfite solution can be added；It was turned over during immersion every 7 hours
Tank is primary, it is therefore an objective to so that buckwheat polished rice is uniformly impregnated, turn over tank work available air compressor to realize；
The step (5) specifically: buckwheat polished rice after immersion and water are sent into needle mill with the weight ratio of 1:12, material into
Left and right sides is divided to enter high-speed rotating Moving plate center after entering needle mill, since material is by the effect of centrifugal force, between moving, determining needle repeatedly
It is violently shaken and broken, to greatest extent by separate out, fiber is formed starch because there is stronger toughness to be not easy to crash
The slag crust of small pieces, rather than the slag crust of thin paste, this is conducive to sieve and wash out free starch；Material forms suspension after grinding；Essence
The purpose of mill is to destroy the combination of starch and non-starch ingredient in buckwheat, makes the maximum separate out of starch, separates fibre
Slag is tieed up, and separates protein and starch granules in endosperm, so that further separation and purification；
The step (6) specifically: suspension is pumped in the basket of First screen centrifuge (LS160M-T) by single screw rod
The heart, under the influence of centrifugal force, slurry are distributed evenly along compass screen surface, and are moved to big footpath direction, and outer rim of going directly falls into collection slag
It is pumped to next screen centrifuge in room, passes sequentially through five screen centrifuges and is separated；Starch pellet is less than sieve due to diameter
Mesh enters powder-collecting chamber by mesh under the influence of centrifugal force；Nozzle is all set before and after the basket of screen centrifuge, and ejected wash water is from the
Five screen centrifuges, which enter to first screen centrifuge direction, carries out washing motion, by dregs cleaning one time in each screen centrifuge, most
Powder-collecting chamber of the Zhongdao up to the first sieve；Isolated starch milk is sent to by defoaming pump remove sand in sand cleaning machine after enter starch milk be concentrated
Process；Sieve mesh mesh number is 140 mesh, cleans water pressure 8kg, and the Baume degrees into the starch milk of starch milk enrichment process is
1.5 Baume degrees；Fiber separation is mainly that will release the fibrous residue after starch repeatedly to be washed, it is made to contain less free shallow lake
Powder and combine starch；
The step (7) specifically: starch milk enrichment process is completed using level Four cyclone system, wherein concentrate cyclone M1, dense
10mmA type cyclone pipe in varying numbers built in contracting cyclone M2, can be concentrated into 9 Baumes for the starch milk of 1.5 Baume degrees, and remove
The albumen and fiber fines of 70-75%；The flows tandem principle work such as concentrate cyclone M1, concentrate cyclone M2 use, concentration rotation
It flows a large amount of albumen, small fiber and a small amount of starch contained in the overflow of device M1, concentrate cyclone M2 and enters Protein Separation eddy flow
Device A1, Protein Separation cyclone A2；10mmA cyclone pipe built in Protein Separation cyclone A1, Protein Separation cyclone A2, albumen point
It, can be by concentrate cyclone M1, concentrate cyclone from the flows tandem principle work such as cyclone A1, Protein Separation cyclone A2 use
The recovery of starch contained in M2 overflow, and enter concentrate cyclone M1 reciprocation cycle, Protein Separation cyclone A2 overflow contains greatly
The albumen and impurity of amount enter protein salvage process, into before starch fine purifiation process, guarantee the A2 overflow of Protein Separation cyclone
Not starch-containing, M2 underflow starch milk is in 9 Baume degrees；Four cyclone pressure differences are 68kg, Protein Separation cyclone A1, albumen
Separate hydrocyclone A2 feed pressure is 1012 kilograms；
The step (8) specifically: the starch milk of 9 Baume degrees is sent into 11 grades of washing systems containing 11 rinsing maching W1-W11
In, wherein 15mmB type cyclone pipe in varying numbers built in first three rinsing maching W1-W3, behind built in seven rinsing maching W4-W10
10mmA type cyclone pipe in varying numbers, 10mmB type cyclone pipe built in the last one rinsing maching W11,11 rinsing maching W1-W11 are adopted
With equal flows tandem principle work；Starch milk enters from first rinsing maching W1, ejected wash water from the last one rinsing maching W11 into
Enter, the charging of every level-one is the underflow of previous stage and the overflow of rear stage, forms a countercurrent washing, rinsing maching W11 underflow is
Smart starch milk；Smart starch milk enters sand cleaning machine after secondary remove sand, into smart starch milk tank；Because buckwheat starch particle is small, institute
It completes to wash to use three kinds of different cyclone pipe series connection, and stringenter to pressure requirements, each cyclone pressure difference is
6.2kg, rinsing maching W1 feed pressure are 9.5kg, and every grade of feed pressure is incremented by 0.5kg later, reach rinsing maching W11 charging pressure
Power 14.5kg, the Baume degrees of rinsing maching W11 underflow essence starch milk are 19 Baume degrees；
The step (9) specifically: be dehydrated smart starch milk with being pumped into scraper centrifugal machine, the water of removing is sent to washing recruitment
In skill water pot；Starch uniformly forms cake layer on the rotary drum of scraper centrifugal machine, and adjustment scraper scrapes off 0.08cm every time；It scrapes
Cake layer be sent to drying plant and be dried, drying temperature≤90 DEG C；Then it is packed in storage after being sieved.
Embodiment 4
On the basis of embodiment 1.Further include clarification process between step (8) and step (9), clarifies process specifically: 11
It is left containing a large amount of light impurities, albumen and a small amount of short grained starch, diameter 2um in the overflow of rinsing maching W1 in grade washing system
Right starch enters two-stage clarification system: clarification system C1, clarification system C2,10mmB built in clarification system C1, clarification system C2
Type cyclone pipe, and clarification system C1, clarification system C2 can be led to small tears recovery of starch using the connection of flow series system is subtracted
Clarification system C1 underflow is crossed into 11 grades of washing systems；Still contain micro starch granule in clarification system C2 overflow, into shallow lake
Concentration and recovery is carried out in the concentrate cyclone M1 of powder cream enrichment process；The system that asks for a clarification C1, clarification system C2 feed pressure are equal
Not less than 10kg, clarification system C1 underflow Baume degrees is 3-4 Baume degrees.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (8)
1. a kind of preparation method of buckwheat starch, which is characterized in that including following below scheme: (1) buckwheat raw grain carries out miscellaneous clearly remove sand；
(2) buckwheat raw grain is classified according to particle size；(3) decortication processing is carried out to buckwheat raw grain；(4) to the buckwheat after decortication
Polished rice carries out immersion treatment；(5) precision grinding process；(6) starch fiber separation process；(7) starch milk enrichment process；(8) starch extract
Wash process；(9) it is dehydrated, is dry, sieving, packaging and warehousing；
The step (4) specifically: the buckwheat polished rice after decortication is placed in the filling of the immersion containing water and is impregnated 48 hours, water temperature is
30-36 DEG C, the weight ratio of buckwheat polished rice and water is 1:25-40；In soaking process, sodium sulfite solution is added in impregnating filling；
It is primary that every 6-8 hours tank was turned over during immersion.
2. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (2) specifically: will sieve
Buckwheat raw grain after choosing, which is sent through belt conveyor to the classification of three-level oscillatory type, selects sieve, and the buckwheat raw grain of variable grain size is sieved
Three kinds are selected as, classification standard is 2mm particle below to be a kind of, and the particle between 2.5-3mm is one kind, the particle of 3mm or more
For one kind.
3. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (5) specifically: will soak
Buckwheat polished rice and water are after bubble with 1:(10-15) weight ratio dilution after be sent into needle mill smash enter after defibrination bolter into
The separation of row slurry.
4. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (6) specifically: suspend
Liquid is sent by pumping to the basket center of First screen centrifuge, and under the influence of centrifugal force, slurry falls into slag trapping chamber and is pumped to
Next screen centrifuge continues to pass sequentially through four screen centrifuges being separated；Starch granules passes through mesh under the influence of centrifugal force
Into powder-collecting chamber；Ejected wash water enters from four screen centrifuges respectively, carries out cleaning continuous movement, and the dregs in each screen centrifuge are connected
Continuous cleaning one time；Separate generate starch milk by be pumped into remove sand in sand cleaning machine after enter starch milk enrichment process.
5. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (7) specifically: starch
Newborn enrichment process is completed using level Four cyclone system, and level Four cyclone system includes concentrate cyclone M1, concentrate cyclone M2, albumen
Separate hydrocyclone A1 and Protein Separation cyclone A2；Wherein, a number of built in concentrate cyclone M1, concentrate cyclone M2
The starch milk of 1-2 Baume degrees is concentrated into 8-10 Baume by 10mmA type cyclone pipe, and removes the albumen and fiber fines of 70-75%,
Concentrate cyclone M1, concentrate cyclone M2 are run using cascaded structure；Most of albumen is separated from starch milk, is entered
10mmA cyclone pipe built in concentrate cyclone A1, concentrate cyclone A2, concentrate cyclone A1, concentrate cyclone A2 use tandem junction
Structure, the starch concentration and recovery that will contain in concentrate cyclone M1, concentrate cyclone M2 overflow.
6. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (8) specifically: by 8-
The starch milk of 10 Baume degrees is sent into, in 11 grades of washing systems using 11 rinsing machings of cascaded structure, wherein preceding 3 rinsing machings
Built-in a number of 15mmB type cyclone pipe, behind 10mmA type cyclone pipe a number of built in 7 rinsing machings, last 1
10mmB type cyclone pipe built in rinsing maching；Starch milk enters from First rinsing maching, and ejected wash water enters from last rinsing maching
Implement only developing technique, is smart starch milk up to standard to a last rinsing maching underflow；In smart starch milk precipitating agitator tank, into
Enter smart starch milk tank.
7. the preparation method of buckwheat starch according to claim 1, which is characterized in that the step (9) specifically: will be smart
Starch milk carries out scraper centrifugal dehydration with vacuum drum dehydration equipment is pumped into, and the water of removing is sent into washing technique water pot；
Starch uniformly forms cake layer on the rotary drum of scraper centrifugal machine, and adjustment scraper scrapes off 0.05-1cm every time；The filter cake scraped
Layer send in steam flow drying under the action of screw conveyor and is dried, drying temperature≤150 DEG C；Then it is sieved by 120 meshes
After be packed in storage.
8. the preparation method of buckwheat starch according to claim 1, which is characterized in that between step (8) and step (9)
Further include clarification process, clarify process specifically: containing a large amount of light in the overflow of first rinsing maching in 11 grades of washing systems
Impurity, albumen and a small amount of short grained starch, the starch of diameter 2um enter two-stage clarification system, and two-stage clarification system includes clear
The built-in 10mmB type cyclone pipe of clear system C1 and clarification system C2, clarification system C1, clarification system C2, and it is clarification system C1, clear
Clear system C2 is run using the connection of flow series system is subtracted；Clarification system C1 underflow enters 11 grades of washing systems；Clarification system C2
Overflow, which enters, carries out concentration and recovery in the concentrate cyclone M1 of starch milk enrichment process；Clarification system C1, clarification system C2 charging
Pressure is not less than 10kg, and clarification system C1 underflow Baume degrees is 3-4 Baume degrees.
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| CN1178080A (en) * | 1997-11-03 | 1998-04-08 | 邹光友 | Process for producing vermicelli from sweet potato |
| CN101121756A (en) * | 2006-08-07 | 2008-02-13 | 榆林市新田源集团公司 | Method for producing buckwheat starch |
| CN102453099A (en) * | 2010-10-18 | 2012-05-16 | 中粮集团有限公司 | Preparation method of corn starch |
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