CN1935044A - Wheat bran twin-screw extruding treatment method and twin-screw extruding machine thereof - Google Patents
Wheat bran twin-screw extruding treatment method and twin-screw extruding machine thereof Download PDFInfo
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- CN1935044A CN1935044A CNA2006100483623A CN200610048362A CN1935044A CN 1935044 A CN1935044 A CN 1935044A CN A2006100483623 A CNA2006100483623 A CN A2006100483623A CN 200610048362 A CN200610048362 A CN 200610048362A CN 1935044 A CN1935044 A CN 1935044A
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Abstract
The present invention relates to a twin-screw extrusion processing treatment method for wheat bran and its twin-screw extruder. Said treatment method includes the following steps; thermal refining wheat bran; extruding treatment, adopting twin-screw extruder to treat thermal refined wheat bran, the draw ratio of screw rod is 15-30:1, compression ratio of twin-screw is 2-8:1, the rotating speed of screw rod is 150-500 rpm; rotary cutting; and pulverizing. Said invention can make the microorganism, biological enzyme and injurious insect eggs being in the wheat bran be completely killed and inactivated so as to make the wheat bran obtain further development and utilization.
Description
Technical field
The present invention relates to a kind of twin-screw extrusion process processing method of wheat bran, belong to food processing byproducts deep processing category, be a kind of wheat bran through high temperature, high pressure, high shear forces, and can realize the processing method of abrupt release to normal pressure.The invention still further relates to the used twin (double) screw extruder of this method of realization.
Background technology
The byproduct of wheat bran after as wheat flour milling is widely used in feed, food industry.Be used to produce feed, produce food such as vinegar, soy sauce, wine as one of raw material.The reason that restriction wheat bran is done further to use mainly is to contain a large amount of microorganisms, parasite egg in the wheat bran, and not anti-storage is edible dangerous; Contain abundant biology enzyme in the wheat bran, activity is high again, and is not easy to store; The sense of food of wheat bran is coarse, and hair wastes, taste are very bad, is difficult to swallow.CN1440681A discloses a kind of high activity wheat-bran dietary fiber biscuit preparation method, selecting wheat bran for use is raw material, utilize twin (double) screw extruder that it is carried out multi-functional conversion, prepared dietary fiber of high activity, and be that biscuit production auxiliary materials and homemade high-quality high protein flour are arranged in pairs or groups with it, developed the dietary fiber of high activity biscuit.CN1299612A discloses a kind of high-cellulose food and preparation method thereof, handles by twin-screw Bulking Machine, pulverize the high-cellulose base-material.CN2753167Y discloses a kind of bi-screw secondary extruder, this equipment comprises sleeve and the die head that links to each other with sleeve, the a pair of combined threaded rod of engagement in the same way that has counterscrew is installed in sleeve inner, it is characterized in that described combined threaded rod is divided into feeding section, melt zone, extruding zone, homogenizing zone, secondary extruding zone and an oppositely retardance section successively along the die head direction, these the six sections sizes according to pitch are divided, and wherein oppositely retardance section is opposite with other five sections hands of spiral.CN2681887Y discloses the Variable pitch screw in a kind of screw extruder pelletizer, and the screw rod outer setting has flight, and the distance between the flight is not equidistant, and flight its pitch from the feed end to the discharge end diminishes gradually.Flight feed end pitch is 1～20 times of discharge end pitch.CN2706482Y discloses a kind of novel extruder screw that is used for spun-bonded non-woven, chemical fibre.Publish the 112nd～116 page of " food extrusion process technology and application " book of (Zhang Yuzhong, Wang Jing chief editor) by China Light Industry Press and introduced twin (double) screw extruder.Above technology is general to the processing treatment effect of wheat bran, and the technology that wherein has is handled the processing of wheat bran directive significance.
Summary of the invention
The twin-screw extrusion process processing method that the purpose of this invention is to provide a kind of wheat bran, wheat bran is carried out extruding after the strong shear treatment of HTHP, be released into normal temperature and pressure suddenly, make the microorganism in the wheat bran, biology enzyme, the insect worm's ovum is killed or inactivation, make starch gelatinization generation fragrance in the wheat bran, make the protein slaking in the wheat bran, be easy to digestion and absorption, impel the glycosidic bond fracture of cellulose and hemicellulose in the wheat bran, and then degraded, its strand is shortened, make the cell wall rupture of wheat bran simultaneously, born of the same parents' content discharges, and increases soluble dietary fibre content, thereby provides effective way for the further application of wheat bran.
For realizing above-mentioned processing and treating method, another object of the present invention provides a kind of twin (double) screw extruder.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of twin-screw extrusion process processing method of wheat bran, its technical scheme is that it comprises the steps: that (1) wheat bran is modified: adopt the spice machine, add 40～60 order wheat bran earlier, add the water account for wheat bran weight 10～15% or concentration again and be 3～8% food-grade sodium hydroxide solution, mix and stir mixing; (2) extrusion process: employing is rotated full engagement type twin (double) screw extruder in the same way the wheat bran after modified is carried out extrusion process, the running parameter of twin (double) screw extruder is: screw slenderness ratio (L/D) is 15～30: 1, the compression ratio of twin-screw (V1/V2) is 2～8: 1, screw speed is 150～500 rev/mins, material temperature is 120～200 ℃ in the die head, and the extrusion positive pressure is 2.0～15.0MPa; (3) rotary-cut: the corresponding rotary cutter of installing in the outside of die head extrusion, cut off the wheat bran extruded material; (4) pulverize: adopt pulverizer to pulverize, make material after the pulverizing, and be no less than 70% material and can pass through 100 mesh sieves all by 40 mesh sieves.
In the technique scheme, rotary cutter is preferably driven by frequency modulation motor in the step (3).Can the column type bar that the wheat bran extruded material is cut into 0.2～4.0 centimeter length in the step (3).
The twin (double) screw extruder of realizing described processing and treating method has frame, rotary cutter and drive unit thereof, die head, electrical heating cover, rotates full engagement type twin-screw, machine barrel, screw actuator, drawing-in device in the same way, and its technical scheme is that described screw slenderness ratio (L/D) is 15～30: 1; The compression ratio of twin-screw (V1/V2) is 2～8: 1, and wherein, L is the effective length of screw rod, and D is the diameter (big footpath) of screw rod, and V1 is the screw channel volume of a pitch of feeding end screw rod, and V2 is the screw channel volume of last pitch of exhaust end.
In the technique scheme, described rotary cutter can be two strip blades, it is positioned at the outside of die head extrusion and corresponding with the die head extrusion, drive unit can have the frequency modulation motor that is fixed on the frame, be fixed in the drive pulley on the power output shaft of frequency modulation motor, endoporus extended type driven pulley, the adhesive tape that connects drive pulley and driven pulley, the endoporus that passes across driven pulley by two rolling bearings of this endoporus the inside with the fixed axis of the spacing supporting of driven pulley, be located at the auxiliary retaining wall with above-mentioned two rolling bearings difference axial limiting of the inside and outside both sides of driven pulley, its of fixed axis has external screw thread from the endoporus extension inboard of driven pulley, it is fixedly connected on by screw thread with die head, two strip blades of rotary cutter are individually fixed in the outer surface of its extended type endoporus of driven pulley, and the bearing of trend of two strip blades is at the best conllinear of the projection of horizontal plane.
In the technique scheme, the described auxiliary retaining wall that is positioned at the driven pulley inboard can be the part of driven pulley itself, and the auxiliary retaining wall that is positioned at the driven pulley outside can be the baffle plate that removably is fixedly connected on driven pulley.
The characteristics of gained wheat bran extrudate of the present invention (product) are 1) outward appearance: the yellowish-brown powder has a strand special fragrance.2) fineness degree: the material after the pulverizing is all by 40 mesh sieves, and is no less than 70% material and can passes through 100 mesh sieves.3) dietary fiber content: total dietary fiber is more than 40%, and insoluble diedairy fiber is more than 34%, and soluble dietary fiber is more than 6%.
Processing and treating method of the present invention is that wheat bran is carried out extruding after the strong shear treatment of HTHP, be released into normal temperature and pressure suddenly, microorganism, biology enzyme, insect worm's ovum in the wheat bran are killed or inactivation, make starch gelatinization generation fragrance in the wheat bran, make the protein slaking in the wheat bran, be easy to digestion and absorption, impel the glycosidic bond fracture of cellulose and hemicellulose in the wheat bran, and then degraded, its strand is shortened, make the cell wall rupture of wheat bran simultaneously, born of the same parents' content discharges, and has increased soluble dietary fibre content; With pulverizer material is crushed to all by 40 mesh sieves then, and is no less than 70% material and can passes through 100 mesh sieves, further destroyed the cell membrane of wheat bran, born of the same parents' content is discharged more; And make that the ratio of soluble dietary fiber and insoluble diedairy fiber reaches reasonable level in the wheat bran dietary fiber, its long shelf-life, thus provide effective way for the further application of wheat bran.
Be example to produce wholemeal below, further specify the beneficial effect that processing and treating method of the present invention brings:
The wheat bran extrudate and the special first-class wheat flour that make are put into mixer (can adopt leaf band horizontal spiral mixer), add the wholemeal additive again, its weight proportion is wheat bran extrudate 10～30%, wholemeal additive 0.1%, surplus is special first-class wheat flour, the three was mixed 5～8 minutes, can be packaged as the finished product wholemeal.The prescription of described wholemeal additive is glucose oxidase 25ppm (be glucose oxidase account for finished product wholemeal gross mass 25/1000000ths), hemicellulase 15ppm, Vc 15ppm, again with wheaten starch as diluent, be diluted to addition and reach 0.1%, can adopt V-Mixer to mix and be the wholemeal additive in 6 minutes.Food additives such as used hemicellulase, Vc, glucose oxidase mainly work the effect that is connected of strengthening wheat bran and dough gluten network structure.
Adopt the advantage of the wholemeal of processing and treating method production of the present invention to be:
When 1. the wholemeal of Sheng Chaning carried out the Flour product making, the goods mouthfeel was fine and smooth, and hair wastes does not have a strand special wholemeal fragrance.
2. long shelf-life, normal temperature can reach more than 6 months.
3. equipment investment is little, and production cost is low, help producing, and the nutritional labeling in the wheat bran almost all keeps.
4. contain rich dietary fiber and vitamin in the wholemeal, see the following form:
Wholemeal and wheat flour part nutrient are with reference to contrasting table
Description of drawings
Fig. 1 is the structural representation of twin (double) screw extruder of the present invention.
Fig. 2 is the structural representation of the twin-screw of twin (double) screw extruder of the present invention.
Fig. 3 is the rotary cutter of twin (double) screw extruder of the present invention and the structural representation of drive unit.
Fig. 4 is the rotary cutter of twin (double) screw extruder of the present invention and the wherein structural representation of a part of drive unit.
Fig. 5 be among Fig. 4 A to view.
Fig. 6 is along the cutaway view of B-B line among Fig. 5.
The specific embodiment
The twin-screw extrusion process processing method of wheat bran comprises the steps: that (1) wheat bran is modified: adopt the spice machine, add (extracting) 40～60 orders (pure) wheat bran earlier from wheat flour milling workshop bran finisher, adding (pure) water or the concentration that account for wheat bran weight 10～15% (optional 12%) again is the food-grade sodium hydroxide solution of 3～8% (optional 5%), mix and stirred mixing 3～6 minutes.(2) extrusion process: employing is rotated full engagement type twin (double) screw extruder in the same way the wheat bran after modified is carried out extrusion process, the running parameter of twin (double) screw extruder is: screw slenderness ratio (L/D) is 15～30: 1 (optional 15: 1 or 20: 1 or 25: 1 or 30: 1), wherein, L is the effective length of screw rod, and D is the diameter (big footpath) of screw rod.The compression ratio of twin-screw (V1/V2) is 2～8: 1 (optional 2: 1 or 5: 1 or 8: 1), and wherein, V1 is the screw channel volume of a pitch of feeding end screw rod, and V2 is the screw channel volume of last pitch of exhaust end.Screw speed is 150～500 rev/mins (optional 150 rev/mins or 350 rev/mins or 500 rev/mins), material temperature is 120～200 ℃ (optional 120 ℃ or 160 ℃ or 200 ℃) in the die head, and the extrusion positive pressure is 2.0～15.0MPa (optional 2.0MPa or 10.0MPa or 15.0MPa).(3) rotary-cut: the corresponding rotary cutter of installing in the outside of die head extrusion, drive by frequency modulation motor, the wheat bran extruded material can be cut into the column type bar of 0.2～4.0 centimeter length.(4) pulverize: adopt pulverizer to pulverize, make material after the pulverizing, and be no less than 70% material and can pass through 100 mesh sieves all by 40 mesh sieves.The characteristics of gained wheat bran extrudate (product) are 1) outward appearance: the yellowish-brown powder has a strand special fragrance.2) fineness degree: the material after the pulverizing is all by 40 mesh sieves, and is no less than 70% material and can passes through 100 mesh sieves.3) dietary fiber content: total dietary fiber is more than 40%, and insoluble diedairy fiber is more than 34%, and soluble dietary fiber is more than 6%.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, twin-screw of the present invention extruding (going out) machine can have frame, rotary cutter 1 and drive unit 1 thereof ', die head (template) 2, electrical heating cover 3, rotate full engagement type twin-screw 4, machine barrel 5, screw actuator, drawing-in device in the same way.Screw actuator can have distributor box (gearbox) 6, main motor 7.Drawing-in device can have feeding motor 8, feeding screw feeder 9, Arch-Breaking Device 10, feeding hopper.Rotary cutter 1 is two strip blades, it be positioned at die head extrusion 2 ' outside and corresponding with the die head extrusion, drive unit 1 ' the have frequency modulation motor 11 that is fixed on the frame, be fixed in the drive pulley on the power output shaft of frequency modulation motor, endoporus (centre bore) extended type driven pulley (promptly the madial wall of this driven pulley extends a sleeve), the adhesive tape that connects drive pulley and driven pulley, the endoporus that passes across driven pulley by two rolling bearing 1b of this endoporus the inside with the fixed axis 1a of the spacing supporting of driven pulley (support), be located at the auxiliary retaining wall with above-mentioned two rolling bearings difference axial limiting of the inside and outside both sides of driven pulley, the auxiliary retaining wall that is positioned at the driven pulley inboard in the present embodiment is the part of driven pulley itself, is positioned at the baffle plate 1c of auxiliary retaining wall for removably being fixedly connected on driven pulley in the driven pulley outside.Its of fixed axis 1a has external screw thread from the endoporus extension inboard of driven pulley, and it is fixedly connected on by screw thread with die head 2.Two strip blades difference (can pass through bolt) of rotary cutter 1 are fixed in the outer surface (being the outer surface of sleeve) of its extended type endoporus of driven pulley, and the bearing of trend of two strip blades is at the projection conllinear of horizontal plane.This structure can make the smaller volume of twin (double) screw extruder of the present invention.Rotary cutter 1 and drive unit 1 thereof ' be not limited in above-mentioned a kind of structure, also can be other structure.Screw slenderness ratio (L/D) is 15～30: 1; The compression ratio of twin-screw (V1/V2) is 2～8: 1, and wherein, L is the effective length of screw rod, and D is the diameter (big footpath) of screw rod, and V1 is the screw channel volume of a pitch of feeding end screw rod, and V2 is the screw channel volume of last pitch of exhaust end.The method that reaches above-mentioned compression ratio can adopt three sections screw rods of different pitch, and staged changes pitch; Can adopt continuous gradient pitch; Can pitch constant, change the thickness of thread continuously, to change the volume of screw channel; Can discontinuously, staged change screw diameter and spiral groove depth to change the volume of screw channel; Can also change the inside and outside diameter of screw rod continuously, the screw channel volume is diminished gradually.Certainly, the method that reaches above-mentioned compression ratio can also adopt alternate manner.
Claims (6)
1, a kind of twin-screw extrusion process processing method of wheat bran, it is characterized in that it comprises the steps: that (1) wheat bran is modified: adopt the spice machine, add 40～60 order wheat bran earlier, add the water account for wheat bran weight 10～15% or concentration again and be 3～8% food-grade sodium hydroxide solution, mix and stir mixing; (2) extrusion process: employing is rotated full engagement type twin (double) screw extruder in the same way the wheat bran after modified is carried out extrusion process, the running parameter of twin (double) screw extruder is: screw slenderness ratio (L/D) is 15～30: 1, the compression ratio of twin-screw (V1/V2) is 2～8: 1, screw speed is 150～500 rev/mins, material temperature is 120～200 ℃ in the die head, and the extrusion positive pressure is 2.0～15.0MPa; (3) rotary-cut: the corresponding rotary cutter of installing in the outside of die head extrusion, cut off the wheat bran extruded material; (4) pulverize: adopt pulverizer to pulverize, make material after the pulverizing, and be no less than 70% material and can pass through 100 mesh sieves all by 40 mesh sieves.
2, method according to claim 1 is characterized in that rotary cutter is driven by frequency modulation motor in the above-mentioned steps (3).
3, method according to claim 1 and 2 is characterized in that in the above-mentioned steps (3) it being the column type bar that the wheat bran extruded material is cut into 0.2～4.0 centimeter length.
4, a kind of twin (double) screw extruder of realizing the described processing and treating method of claim 1, have frame, rotary cutter and drive unit thereof, die head, electrical heating cover, rotate full engagement type twin-screw, machine barrel, screw actuator, drawing-in device in the same way, it is characterized in that described screw slenderness ratio (L/D) is 15～30: 1; The compression ratio of twin-screw (V1/V2) is 2～8: 1, and wherein, L is the effective length of screw rod, and D is the diameter of screw rod, and V1 is the screw channel volume of a pitch of feeding end screw rod, and V2 is the screw channel volume of last pitch of exhaust end.
5, twin (double) screw extruder according to claim 4, it is characterized in that described rotary cutter (1) is two strip blades, it is positioned at the outside of die head extrusion (2 ') and corresponding with the die head extrusion, drive unit (1 ') has the frequency modulation motor (11) that is fixed on the frame, be fixed in the drive pulley on the power output shaft of frequency modulation motor, endoporus extended type driven pulley, the adhesive tape that connects drive pulley and driven pulley, the endoporus that passes across driven pulley by two rolling bearings (1b) of this endoporus the inside with the fixed axis (1a) of the spacing supporting of driven pulley, be located at the auxiliary retaining wall with above-mentioned two rolling bearings difference axial limiting of the inside and outside both sides of driven pulley, its of fixed axis (1a) has external screw thread from the endoporus extension inboard of driven pulley, it is fixedly connected on by screw thread with die head (2), two strip blades of rotary cutter (1) are individually fixed in the outer surface of its extended type endoporus of driven pulley, and the bearing of trend of two strip blades is at the projection conllinear of horizontal plane.
6, twin (double) screw extruder according to claim 5, it is characterized in that the above-mentioned auxiliary retaining wall that is positioned at the driven pulley inboard is the part of driven pulley itself, be positioned at the baffle plate (1c) of auxiliary retaining wall for removably being fixedly connected in the driven pulley outside with driven pulley.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102657372A (en) * | 2012-05-29 | 2012-09-12 | 江苏牧羊集团有限公司 | Granulating equipment with high gelatinization degree and high productivity and granulating method of granulating equipment |
| CN102919296A (en) * | 2012-11-21 | 2013-02-13 | 杨根喜 | Nutritional wheat flour and production method thereof |
| CN103156267A (en) * | 2013-01-31 | 2013-06-19 | 温特牧(北京)科技有限公司 | Bulking machine |
| CN103169000A (en) * | 2013-01-31 | 2013-06-26 | 温特牧(北京)科技有限公司 | Regeneration rice production apparatus |
| CN105212249A (en) * | 2015-10-21 | 2016-01-06 | 黑龙江省农业科学院食品加工研究所 | A kind of twin (double) screw extruder for the production of coarse cereals reproduced rice |
| CN107348548A (en) * | 2017-07-21 | 2017-11-17 | 贵州省贝真食业有限公司 | A kind of plain meat process equipment bolt special |
| CN108041458A (en) * | 2017-12-06 | 2018-05-18 | 刘继明 | A kind of ultra-thin soybean piece and preparation method thereof |
| CN110236215A (en) * | 2019-07-10 | 2019-09-17 | 广西壮族自治区农业科学院 | A kind of rice-flour noodles machine for the processing of high accounting potato raw material |
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| US20150296867A1 (en) * | 2012-12-14 | 2015-10-22 | Abbott Laboratories | Methods for extruding powered nutritional products using a high shear element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4384837A (en) * | 1980-07-08 | 1983-05-24 | Oryza Oil & Fat Chemical Co., Ltd. | Apparatus for pretreatment for extracting crude oil from rice bran |
| CN1440681A (en) * | 2003-03-13 | 2003-09-10 | 山东农业大学 | Making process of biscuit with high-activity bran food fiber |
| US7235276B2 (en) * | 2003-09-24 | 2007-06-26 | General Mills Ip Holdings Ii, Llc | High protein puffed food product and method of preparation |
| US8741370B2 (en) * | 2005-03-18 | 2014-06-03 | Mgpi Processing, Inc. | Expanded products with high protein content |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102657372A (en) * | 2012-05-29 | 2012-09-12 | 江苏牧羊集团有限公司 | Granulating equipment with high gelatinization degree and high productivity and granulating method of granulating equipment |
| CN102919296A (en) * | 2012-11-21 | 2013-02-13 | 杨根喜 | Nutritional wheat flour and production method thereof |
| CN103156267A (en) * | 2013-01-31 | 2013-06-19 | 温特牧(北京)科技有限公司 | Bulking machine |
| CN103169000A (en) * | 2013-01-31 | 2013-06-26 | 温特牧(北京)科技有限公司 | Regeneration rice production apparatus |
| CN103156267B (en) * | 2013-01-31 | 2017-09-15 | 温特牧(北京)科技有限公司 | Bulking machine |
| CN105212249A (en) * | 2015-10-21 | 2016-01-06 | 黑龙江省农业科学院食品加工研究所 | A kind of twin (double) screw extruder for the production of coarse cereals reproduced rice |
| CN107348548A (en) * | 2017-07-21 | 2017-11-17 | 贵州省贝真食业有限公司 | A kind of plain meat process equipment bolt special |
| CN107348548B (en) * | 2017-07-21 | 2023-04-28 | 贵州省贝真食业有限公司 | Special screw rod of vegetarian meat processing equipment |
| CN108041458A (en) * | 2017-12-06 | 2018-05-18 | 刘继明 | A kind of ultra-thin soybean piece and preparation method thereof |
| CN110236215A (en) * | 2019-07-10 | 2019-09-17 | 广西壮族自治区农业科学院 | A kind of rice-flour noodles machine for the processing of high accounting potato raw material |
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Effective date of registration: 20170314 Address after: 052360 Hebei, Shijiazhuang City, the eastern side of the main street on the north side Patentee after: Hebei black horse flour Co., Ltd. Address before: 052360 Xinji City, the eastern side of the main street on the north side of the city of Hebei Patentee before: Hebei Heima Grain Oil Industry LLC |