CN107981026A - The extraction process unit and method of a kind of soybean protein - Google Patents
The extraction process unit and method of a kind of soybean protein Download PDFInfo
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- CN107981026A CN107981026A CN201711387049.7A CN201711387049A CN107981026A CN 107981026 A CN107981026 A CN 107981026A CN 201711387049 A CN201711387049 A CN 201711387049A CN 107981026 A CN107981026 A CN 107981026A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
- A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
- A23J1/14—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from leguminous or other vegetable seeds; from press-cake or oil-bearing seeds
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Abstract
The extraction process unit and method of a kind of soybean protein, the described method includes：S1：Extraction step, defatted soybean meal is mixed in proportion with water, feed liquid is ground, and it is 80 mesh sieves by more than 80% to be ground to granularity, and stirring at low speed extracts 40 60min, and the specific mixing speed of stirring at low speed is 50 70 revs/min；S2：Step with centrifugal separation, after the completion of an extraction step, extracting solution is centrifuged with centrifuge, and solid phase enters second extraction process, and liquid phase enters the heavy process of acid；S3：Second extraction step, the solid phase after once extracting adds diluted acid water and carries out water-soluble, rinsing, and feed liquid is ground, and is ground to 80 mesh sieve of granularity by more than 85%, 40 minutes extraction times 5 minute, 60 70 revs/min of mixing speed；S4：Secondary centrifuging separating step, after the completion of second extraction step, extracting solution is centrifuged with centrifuge, and liquid phase enters the heavy process of acid, and solid phase separately uses it for anything else.
Description
Technical field
The present invention relates to soybean protein processing technique field, and in particular to a kind of extraction process unit of soybean protein and side
Method.
Background technology
Soybean protein isolate is a kind of protide food additives produced using cooled defatted soybean meals as raw material, is had good
Good functional character, including dissolubility, gelation, retentiveness, emulsibility, foaming characteristic etc., it is widely used in meat products, drink
The fields such as material, vegetarian diet and Flour product.For protein content more than 90%, amino acid classes have nearly 20 kinds in soybean protein isolate,
And containing essential amino acid, its is full of nutrition, is alternative animal eggs few in number in vegetable protein without cholesterol
One of white kind.
Soybean protein isolate production is generally extracted using the heavy technique of alkali soluble acid, raw material dregs of beans through the solution of sodium hydroxide and water
Albumen, then adds salt acid for adjusting pH value and recycles albumen 4.5 or so, then obtain pH value with sodium hydroxide and water soluble protein
In the certain density protein solution of 6.5-8.0, after high-temperature instantaneous sterilization and flash distillation remove raw meat, powdery is produced using high-pressure fog
Soybean protein isolate product.
Existing protein production technique, only focuses on extraction in itself, technological process not enough refines, and extensive management, is unfavorable for essence
The really quality of the extracted soybean protein of control.
The content of the invention
It is an object of the invention to propose it is a kind of can efficiently, the extraction of fine, accurate, high quality extraction soybean protein
Processing unit and method.
For this purpose, the present invention uses following technical scheme：
A kind of soybean protein extraction process unit, including：Feeding port, elevator, hopper, an extraction tank, an extraction pump, shearing
Pump, compensator, delivery pump, an extraction seperator, two extraction tanks, two extraction pumps, two extraction seperators, soya-bean milk tank, soya-bean milk pump；
Wherein described feeding port is used for throwing raw materials, and the elevator is used to lift the raw material dregs of beans put into from feeding port
To eminence alkali soluble is carried out subsequently into an extraction tank；The hopper be used as dregs of beans come under elevator it is temporary between an extraction tank
Tank；The one extraction tank is for dissolving the tank of dregs of beans；The one extraction pump is centrifugal pump, outwards defeated for extracting the material in tank by one
Send；The shear pump is shear pump, for being sheared, being crushed by dissolved feed liquid；The compensator is used for temporary allotment
Good extraction feed liquid；The delivery pump is centrifugal pump, for the feed liquid in compensator is transported to an extraction seperator；One extraction
Seperator is used to feed liquid being separated into soya-bean milk and bean dregs for the first time；The two extractions tank is used to keep in the separated bean dregs of an extraction, inside
Portion adds dilution water to be mixed；The two extractions pump is used to the feed liquid in two extraction tanks being transported to two extraction seperators；Two extraction point
It is soya-bean milk and bean dregs to disembark for the bean dregs of an extraction to be carried out secondary separation；The soya-bean milk tank is used to keep in an extraction seperator and two
The liquid phase soya-bean milk that extraction seperator is separated；The soya-bean milk pump is used to the soya-bean milk in soya-bean milk tank being transported to next workshop section.
As the presently preferred embodiments, it is provided with agitating device in described one extraction tank, compensator, two extraction tanks and soya-bean milk tank.
As the presently preferred embodiments, the soybean protein extraction process unit uses 304 stainless steels with material institute contact site
It is made.
A kind of extracting treating method of soybean protein, including：
S1：Extraction step, defatted soybean meal is mixed in proportion with water, feed liquid is ground, is ground to granularity
It is 80 mesh sieves by more than 80%, stirring at low speed extraction 40-60min, the specific mixing speed of stirring at low speed turns for 50-70/
Minute；
S2：Step with centrifugal separation, after the completion of an extraction step, extracting solution is centrifuged with centrifuge,
Solid phase enters second extraction process, and liquid phase enters the heavy process of acid；
S3：Second extraction step, the solid phase after once extracting add diluted acid water and carry out water-soluble, rinsing, and to feed liquid into
Row grinding, is ground to 80 mesh sieve of granularity by more than 85%, -40 minutes 5 minutes extraction time, 60-70 revs/min of mixing speed
Clock；
S4：Secondary centrifuging separating step, after the completion of second extraction step, extracting solution is centrifuged with centrifuge,
Liquid phase enters the heavy process of acid, and solid phase separately uses it for anything else.
As the presently preferred embodiments, in step S1, the mixed proportion of defatted soybean meal and water is：1:10-1:15 mixing, water temperature
20-55℃。
As the presently preferred embodiments, in step S3, the pickle that the solid phase after once extracting is added to 4-8 times of dregs of beans amount carries out
Water-soluble, rinsing, adjusts pH1.0-3.0, and wherein pickle is prepared in advance, and concentration 0.5-5.0%, temperature are allocated with water and acid solution
20-55℃。
As the presently preferred embodiments, the method further includes：Before step S1 progress is carried out, there is material preparation process, have
Body is as follows：The physical and chemical composition and each bag of weight in raw material dregs of beans are detected, it is 15%-25% to prepare concentration (mass percent)
NaOH solution, 48-53 DEG C of the hot water of injection into an extraction tank 4, solution hot water amount is by measuring liquid level or direct marking of control；
Hot water opens the agitating device in an extraction tank after adding well, add raw material while stirring, be uniformly mixed；Add the NaOH of predetermined concentration
Solution, the predetermined concentration are 15%-25%, and pH value is adjusted to 7-8.
As the presently preferred embodiments, in step S2, an extraction seperator is opened within 20 minutes in advance, treats to open an extraction after the completion of an extraction
Pump, feeds to centrifuge, and flow passes through an extraction pump discharge valve regulated.
As the presently preferred embodiments, in step s3, while an extraction seperator charging, add to an extraction seperator slag notch
Enter hot water, fallen into after bean dregs are diluted in two extraction tanks, open two extraction agitating devices, be uniformly mixed bean dregs and water, when two extraction tanks
When liquid level reaches 1/3, start two extraction pumps, material is squeezed into the separation of two extraction seperators.
As the presently preferred embodiments, in step s 4, shift to an earlier date 20 minutes and open two extraction seperators, treat to open two after the completion of two extractions
Extraction pump, feeds to centrifuge, and flow passes through two extraction pump discharge valve regulateds.
Brief description of the drawings
Fig. 1 is soybean protein extraction process unit structure diagram of the present invention.
Reference numeral：1. feeding port；2. elevator；3. hopper；A 4. extraction tank；401.CIP water；402. extraction water；
403. extraction alkali；404. agitating device；A 5. extraction pump；6. shear pump；7. compensator；701.CIP water；702. agitating device；
8. delivery pump；A 9. extraction seperator；901. 1 extraction bean dregs outlets；902. 1 extraction soya-bean milk outlets；10. two extraction tanks；101. stirring dress
Put；11. two extraction pumps；12. two extraction seperators；121. two extraction bean dregs outlets；122 2 extraction soya-bean milk outlets；13. soya-bean milk tank；131. stir
Mix device；A 132. extraction soya-bean milk entrance；133. two extraction soya-bean milk entrances；14. soya-bean milk pumps；15. Suan Chen workshop sections.
Embodiment
Further illustrate technical scheme below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is soybean protein extraction process unit structure diagram of the present invention, the soybean protein extraction processing
Device includes successively：Feeding port 1, elevator 2, hopper 3, an extraction tank 4, an extraction pump 5, shear pump 6, compensator 7, delivery pump 8, one
Extract seperator 9, two extraction tanks 10, two extraction pumps 11, two extraction seperators 12, soya-bean milk tank 13, soya-bean milk pump 14；Wherein described feeding port 1 is used
In throwing raw materials, the raw material dregs of beans lifting that the elevator 2 is used to put into from feeding port 1 is to eminence subsequently into an extraction tank 4
Carry out alkali soluble；The hopper 3 comes the temporary storage tank between an extraction tank as dregs of beans under elevator；It is described one extraction tank 4 be for
Dissolve the tank of dregs of beans；The one extraction pump 5 is centrifugal pump, is outwards conveyed for extracting the material in tank 4 by one；The shear pump 6 is height
Fast shear pump, for dissolved feed liquid to be carried out high speed shear, is crushed；The compensator 7 is used for keeping in deployed extraction
Feed liquid；The delivery pump 8 is centrifugal pump, for the feed liquid in compensator is transported to an extraction seperator 9；The one extraction seperator
9 be horizontal spiral discharge sedimentation centrifuge, for feed liquid to be separated into soya-bean milk and bean dregs for the first time；The two extractions tank 10, is used for
The separated bean dregs of a temporary extraction, are mixed in inside plus dilution water；The feed liquid that the two extractions pump 11 is used to extract two in tank is defeated
It is sent to two extraction seperators 12；It is described two extraction seperator 12 be horizontal spiral discharge sedimentation centrifuge, for by one extract bean dregs into
Row secondary separation is soya-bean milk and bean dregs；The soya-bean milk tank 13 is used to keep in an extraction seperator 9 and two extraction seperators 12 are separated
Liquid phase soya-bean milk；The soya-bean milk pump 14 is impeller pump, for the soya-bean milk in soya-bean milk tank 13 to be transported to next workshop section.
The soybean protein extraction process unit material institute contact site in the present invention, it is preferred to use 304 stainless steels
Matter.
The soybean protein extraction processing technology of the present invention is described below：
(1) once extract：Defatted soybean meal and water are pressed 1:10-1:15 mixing, 20-55 DEG C of water temperature, feed liquid pipeline
The equipment such as emulsification pump or colloid mill is ground, and by more than 80%, stirring at low speed extraction 40-60min, is stirred 80 mesh sieve of granularity
Mix speed 50-70r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 4-8 times of dregs of beans amount carries out water-soluble, rinsing,
Adjust pH1.0-3.0, feed liquid is ground with equipment such as pipeline emulsification pump or colloid mills, 80 mesh sieve of granularity by 85% with
On, extraction time 5-40min, mixing speed 60-70r/min.Wherein pickle is prepared in advance, and concentration is allocated with water and acid solution
0.5-5.0%, 20-55 DEG C of temperature；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
Further details of mode of operation is as follows：
This method includes material and prepares, add water, feed intake, adding alkali, an extraction separation, two extractions, two to extract the several steps of separation.
Material before feeding intake prepares：
The physical and chemical composition and each bag of weight in raw material dregs of beans are detected, foundation is provided for correctly operation.Predominantly detect
Protein content, water-soluble nitrogen, the dregs of beans pack margin of error.
Prepare the NaOH solution that concentration (mass percent) is 15%-25%, concentration is preferably 20%.
The lye of the good various concentration of configuration：Examine whether extraction alkali belongs to defined concentration range with Baume Hydrometer.
Prepare hot water：Perform hot water 15m in advance in hot-water cylinder3, 52 ± 1 DEG C of winter hot water temperature, summer water temperature 50 ± 1
℃.Hot-water cylinder is equipped with two sets of hot-water heating systems, and hot water temperature reaches 45 ± 5 DEG C after making steam mixing, then adds hot-water cylinder
Interior, temperature control is subject to hot-water cylinder temperature.When hot water amount reaches 14.5-15m3It can be used afterwards.
Prepare defoamer：Defoamer is melted into uniform emulsion with 50-80 DEG C of hot water in advance.
Add water:13.5m is injected into an extraction tank 43Hot water, solution hot water amount is by measuring liquid level or direct marking of control；
Feed intake：Hot water opens the agitating device 404 in an extraction tank 4 after adding well, add raw material, every batch of addition while stirring
For 1500kg, it is uniformly mixed.
Add alkali：The NaOH solution of predetermined concentration is added, the predetermined concentration is preferably 15%-25%, more preferably
20%, pH value is adjusted to 7-8, is preferably 7.2 ± 0.1 or so, stirring is switched into low speed after extracting 15 minutes, that is, reduces and stirs
Mix the stir speed (S.S.) of device.
One extraction separation：Open within 20 minutes in advance an extraction seperator, treat to open an extraction pump after the completion of an extraction, to centrifuge into
Material, flow pass through an extraction pump discharge valve regulated.The one extraction seperator separating effect is by solid phase water content and liquid phase dregginess
Two indices are weighed：General liquid outlet soya-bean milk slag inclusion is less than 1.4% (percent by volume)；Slag notch bean dregs water content is less than 82%
(percentage by weight).The separating effect of the one extraction seperator can control by adjusting its differential speed, weir position plate.
Two extractions：While an extraction seperator charging, 6m is added to an extraction seperator slag notch3The hot water of/hr, by bean dregs
Fallen into after dilution in two extraction tanks.Two extraction agitating devices are opened, are uniformly mixed bean dregs and water.When two extraction tank liquid levels reach 1/3,
Start two extraction pumps, material is squeezed into the separation of two extraction seperators.
Two extraction separation：Open within 20 minutes in advance two extraction seperators, treat to open two extraction pumps after the completion of two extractions, to centrifuge into
Material.Flow passes through two extraction pump discharge valve regulateds.Separating effect of disembarking is weighed by solid phase water content and liquid phase dregginess two indices
Amount.General liquid outlet soya-bean milk slag inclusion is less than 1.0% (percent by volume)；Slag notch bean dregs water content is less than 84% (quality percentage
Than).Seperator separating effect can control by adjusting its differential speed, weir position plate.Auger of slagging tap is opened in two extraction chargings at the same time, will
Bean dregs are delivered to outdoor.The soya-bean milk liquid stream that one extraction seperator and two extraction seperators are isolated enters in soya-bean milk tank, opens agitating device,
Soya-bean milk is uniformly mixed, when tank level reaches 1/2, soya-bean milk pump is opened and squeezes into the heavy tank of acid.In the operating process of extraction workshop section
In, as found to produce more foam in material pot, add a little defoamer defoaming.
Extract the computational methods of recovery rate：
m1:The quality of liquid phase 1；
m2：The quality of liquid phase 2；
m3：The quality of dregs of beans；
w1：The solidity thing content of liquid phase 1；
w2：The solidity thing content of liquid phase 2；
w3：The dry matter content of dregs of beans；
cp1:The butt crude protein of liquid phase 1；
cp2:The butt crude protein of liquid phase 2；
cp3:The butt crude protein of dregs of beans；
The detection method of crude protein, is detected according to GB standard GB 5009.5-2016.
The extraction recovery rate of the present invention is up to 74%-77%.
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is used only for help and understands the present invention, is not construed as the concrete restriction to the present invention.
Comparative example 1
(1) once extract：Defatted soybean meal and diluted alkaline water are pressed 1:10 mixing, 48 ± 2 DEG C of water temperature, stirring at low speed extraction
45 ± 5min, 60 ± 5r/min of mixing speed；It is 10.8-11.5 that diluted alkaline water prepares pH with sodium hydroxide and water；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The water that solid phase 1 after once extracting is added to 5 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
PH7.5 ± 0.3 30 ± 5min of extraction time, mixing speed 65r/min.48 ± 2 DEG C of temperature；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 70 ± 1%.
Embodiment 1
(1) once extract：Defatted soybean meal and water are pressed 1:10 mixing, 30 ± 2 DEG C of water temperature, feed liquid pipeline emulsification pump
Or the equipment such as colloid mill is ground, for 80 mesh sieve of granularity by 85 ± 2%, stirring at low speed extracts 45 ± 5min, mixing speed
60±5r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 8 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
Section pH1.0 feed liquids are ground with equipment such as pipeline emulsification pump or colloid mills, and 80 mesh sieve of granularity is by 90 ± 2%, during extraction
Between 30 ± 5min, mixing speed 65r/min.Wherein pickle is prepared in advance, and concentration 3 ± 0.1%, temperature are allocated with water and acid solution
30±2℃；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 74 ± 1%.
Embodiment 2
(1) once extract：Defatted soybean meal and water are pressed 1:12 mixing, 30 ± 2 DEG C of water temperature, feed liquid pipeline emulsification pump
Or the equipment such as colloid mill is ground, for 80 mesh sieve of granularity by 85 ± 2%, stirring at low speed extracts 45 ± 5min, mixing speed
60±5r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 7 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
PH1.0 is saved, feed liquid is ground with equipment such as pipeline emulsification pump or colloid mills, and 80 mesh sieve of granularity is by 90 ± 2%, during extraction
Between 30 ± 5min, mixing speed 65r/min.Wherein pickle is prepared in advance, and concentration 3 ± 0.1%, temperature are allocated with water and acid solution
30±2℃；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 74.5 ± 1%.
Embodiment 3
(1) once extract：Defatted soybean meal and water are pressed 1:12 mixing, 35 ± 2 DEG C of water temperature, feed liquid pipeline emulsification pump
Or the equipment such as colloid mill is ground, for 80 mesh sieve of granularity by 87 ± 2%, stirring at low speed extracts 50 ± 5min, mixing speed
60r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 6 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
Save pH2.0 ± 0.3, feed liquid is ground with equipment such as pipeline emulsification pump or colloid mills, 80 mesh sieve of granularity by 90 ± 2%,
30 ± 5min of extraction time, mixing speed 65r/min.Wherein pickle is prepared in advance, with water and acid solution allotment concentration 3 ±
0.1%, 30 ± 2 DEG C of temperature；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 75.5 ± 1%.
Embodiment 4
(1) once extract：Defatted soybean meal and water are pressed 1:15 mixing, 45 ± 2 DEG C of water temperature, feed liquid pipeline emulsification pump
Or the equipment such as colloid mill is ground, for 80 mesh sieve of granularity by 87 ± 2%, stirring at low speed extracts 50 ± 5min, mixing speed
70r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 5 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
PH1.0 is saved, feed liquid is ground with equipment such as pipeline emulsification pump or colloid mills, and 80 mesh sieve of granularity is by 92 ± 2%, during extraction
Between 30 ± 5min, mixing speed 65r/min.Wherein pickle is prepared in advance, and concentration 3 ± 0.1%, temperature are allocated with water and acid solution
40±2℃；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 74.5 ± 1%.
Embodiment 5
(1) once extract：Defatted soybean meal and water are pressed 1:14 mixing, 45 ± 2 DEG C of water temperature, feed liquid pipeline emulsification pump
Or the equipment such as colloid mill is ground, for 80 mesh sieve of granularity by 87 ± 2%, stirring at low speed extracts 50 ± 5min, mixing speed
70r/min；
(2) once centrifuge：After the completion of once extracting, extracting solution is centrifuged with centrifuge, solid phase 1 enters
Second extraction process, liquid phase 1 enter the heavy process of acid；
(3) second extraction：The pickle that solid phase 1 after once extracting is added to 6 times of dregs of beans amount carries out water-soluble, rinsing, adjusts
PH3.0 is saved, feed liquid is ground with equipment such as pipeline emulsification pump or colloid mills, and 80 mesh sieve of granularity is by 92 ± 2%, during extraction
Between 30 ± 5min, mixing speed 65r/min.Wherein pickle is prepared in advance, and concentration 3 ± 0.1%, temperature are allocated with water and acid solution
40±2℃；
(4) secondary centrifuging separates：After the completion of two leachings, extracting solution is centrifuged with centrifuge, it is heavy that liquid phase 2 enters acid
Process, solid phase 2 separately use it for anything else.
The technique recovery rate is 76.5 ± 1%.
Although exemplary embodiment describing the present invention with reference to several, it is to be understood that, above-described embodiment is explanation and shows
Example property and non-limiting embodiment.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above-described embodiment is not limited to any foregoing details, and should be in the essence that appended claims are limited
Widely explained in god and scope, therefore the whole changes fallen into claim or its equivalent scope and remodeling all should be and encloses
Claim is covered.
Claims (10)
1. a kind of soybean protein extraction process unit, including：Feeding port, elevator, hopper, an extraction tank, an extraction pump, shear pump,
Compensator, delivery pump, an extraction seperator, two extraction tanks, two extraction pumps, two extraction seperators, soya-bean milk tank, soya-bean milk pump；
Wherein described feeding port is used for throwing raw materials, and the raw material dregs of beans that the elevator is used to put into from feeding port is lifted to height
Place carries out alkali soluble subsequently into an extraction tank；The hopper comes the temporary storage tank between an extraction tank as dregs of beans under elevator；Institute
It is for dissolving the tank of dregs of beans to state an extraction tank；The one extraction pump is centrifugal pump, is outwards conveyed for extracting the material in tank by one；It is described
Shear pump is shear pump, for being sheared, being crushed by dissolved feed liquid；The compensator is used for keeping in deployed extraction
Feed liquid；The delivery pump is centrifugal pump, for the feed liquid in compensator is transported to an extraction seperator；The one extraction seperator is used
In by feed liquid for the first time be separated into soya-bean milk and bean dregs；The two extractions tank is used to keep in the separated bean dregs of an extraction, in inside plus dilution
Water is mixed；The two extractions pump is used to the feed liquid in two extraction tanks being transported to two extraction seperators；The two extractions seperator is used for
It is soya-bean milk and bean dregs that the bean dregs of one extraction are carried out secondary separation；The soya-bean milk tank is used to keep in an extraction seperator and two extraction seperators
The liquid phase soya-bean milk separated；The soya-bean milk pump is used to the soya-bean milk in soya-bean milk tank being transported to next workshop section.
2. processing unit as claimed in claim 1, is provided with described one extraction tank, compensator, two extraction tanks and soya-bean milk tank and stirs
Mix device.
3. processing unit as claimed in claim 1, the soybean protein extraction process unit and the contact site use of material institute
304 stainless steels are made.
4. a kind of extracting treating method of soybean protein, including：
S1：Extraction step, defatted soybean meal is mixed in proportion with water, feed liquid is ground, and is ground to granularity as 80
Mesh sieve is by more than 80%, and stirring at low speed extraction 40-60min, the specific mixing speed of stirring at low speed is 50-70 revs/min；
S2：Step with centrifugal separation, after the completion of an extraction step, extracting solution is centrifuged with centrifuge, solid phase
Into second extraction process, liquid phase enters the heavy process of acid；
S3：Second extraction step, adds diluted acid water by the solid phase after once extracting and carries out water-soluble, rinsing, and feed liquid is ground
Mill, is ground to 80 mesh sieve of granularity by more than 85%, -40 minutes 5 minutes extraction time, 60-70 revs/min of mixing speed；
S4：Secondary centrifuging separating step, after the completion of second extraction step, extracting solution is centrifuged with centrifuge, liquid phase
Into the heavy process of acid, solid phase separately uses it for anything else.
5. method as claimed in claim 4, in step S1, the mixed proportion of defatted soybean meal and water is：1:10-1:15 mixing,
20-55 DEG C of water temperature.
6. method as claimed in claim 4, in step S3, the solid phase after once extracting adds the diluted acid of 4-8 times of dregs of beans amount
Liquid carries out water-soluble, rinsing, adjusts pH1.0-3.0, and wherein pickle is prepared in advance, and concentration 0.5-5.0% is allocated with water and acid solution,
20-55 DEG C of temperature.
7. method as claimed in claim 4, the method further include：Before step S1 progress is carried out, there is material to prepare step
Suddenly, it is specific as follows：Physical and chemical composition and each bag of weight, preparation mass percent concentration in detection raw material dregs of beans are 15%-
25% NaOH solution, the hot water of 48-53 DEG C of injection into an extraction tank, solution hot water amount is by measuring liquid level or directly mark control
System；Hot water opens the agitating device in an extraction tank after adding well, add raw material while stirring, be uniformly mixed；Add predetermined concentration
NaOH solution, the predetermined concentration are 15%-25%, and pH value is adjusted to 7-8.
8. method as claimed in claim 4, in step S2, an extraction seperator is opened within 20 minutes in advance, treats to open after the completion of an extraction
Qi Yicui is pumped, and is fed to centrifuge, and flow passes through an extraction pump discharge valve regulated.
9. method as claimed in claim 4, in step s3, while an extraction seperator charging, goes out to an extraction seperator
Cinder notch adds hot water, is fallen into after bean dregs are diluted in two extraction tanks, opens two extraction agitating devices, is uniformly mixed bean dregs and water, when
When two extraction tank liquid levels reach 1/3, start two extraction pumps, material is squeezed into the separation of two extraction seperators.
10. method as claimed in claim 4, in step s 4, two extraction seperators are opened within 20 minutes in advance, after the completion for the treatment of two extractions
Two extraction pumps are opened, are fed to centrifuge, flow passes through two extraction pump discharge valve regulateds.
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