CN105032529A - Process suitable for classifying and cleaning wheat polluted by mycotoxins - Google Patents
Process suitable for classifying and cleaning wheat polluted by mycotoxins Download PDFInfo
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- CN105032529A CN105032529A CN201510453532.5A CN201510453532A CN105032529A CN 105032529 A CN105032529 A CN 105032529A CN 201510453532 A CN201510453532 A CN 201510453532A CN 105032529 A CN105032529 A CN 105032529A
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Abstract
Provided is a process suitable for classifying and cleaning wheat polluted by mycotoxins. The process is characterized by comprising the steps that the wheat from a raw wheat bin sequentially passes through a vibrating screen, a primary stone separator, a fine selecting machine, a primary magnetic selector and a wheat scourer and then is fed into an air classifier to be subjected to air classification; the air-classified wheat sequentially passes through an intensive dampener, a tempered wheat bin, a secondary stone separator and a second magnetic selector and then are fed into a wheat scraping and degerming machine to be subjected to husk scraping and degerming; and the husk-scraped and degermed wheat is fed into a laser color sorter through a rotary flat sieve, and then is fed into a 1B flour mill after sequentially passing trough a spraying dampener, a clean wheat bin, a clean wheat scale and a third magnetic selector.
Description
Technical field
The present invention relates to the separation problem in flour mill's wheat flour milling process, mycotoxin being polluted to wheat, relate to a kind of technique being applicable to the cleaning of mycotoxin pollution wheet grading specifically.This technique is used for the cleaning that mycotoxin pollutes wheat, the mycotoxin in wheat can be polluted wheat and isolate according to a certain percentage, thus reduce mycotoxin levels in wheat.
Background technology
Under hot and humid meteorological condition, the as easy as rolling off a log infected upper mycotoxin of the grain in farmland.At harvesting wheat season, the wheat belt high-temperature high humidity season just such as Yellow-huai river basin, south of China, wheat is more serious by fungal contamination.The detection cereal of south results being carried out to the mycotoxin such as vomitoxin (DON) and zearalenone (ZEN) shows, recall rate is respectively up to 69% and 84%.2010, China Huang-Huai-Hai received serious head blight in the harvest season and pollutes, and wheat DON content large area exceeds standard, and the wheat sealed up for safekeeping by endotoxin contamination is up to more than 170 ten thousand tons.The pollution of head blight not only makes wheat drop in production over a large area, and more brings the risk that mycotoxin pollutes, makes the healthy diet of people bring potential safety hazard.
The poison-removing method that mycotoxin pollutes wheat mainly contains physical method (as absorption, rinsing, grinding etc.), chemical method (as ammonification, hypochlorous acid, ozone and heat treatment etc.) and biological method (as microorganism adsorption, enzyme degraded etc.).But these methods are all not suitable for the processing of wheat flour, because wheat flour milling powder process must be dry process, and to flour without any pollution, the flour meeting edible quality only in this way just can be ground.
Summary of the invention
Object of the present invention provides a kind of applicable mycotoxin to pollute the dry classification separating technology of wheat just for weak point existing in above-mentioned prior art.The present invention is on the basis of conventional wheat cleaning technology, the special air current classifying by uniqueness, the mycotoxin wiped in the three process separation wheats such as wheat peeling and the choosing of laser look pollute wheat, content of toxins in final reduction wheat, makes the wheat flour content of toxins after grinding reach state health standards.
Object of the present invention realizes by following technique measures:
Of the present inventionly be applicable to mycotoxin to pollute the concrete steps of technique of wheet grading cleaning as follows: by the wheat from dirty wheat storehouse successively through vibratory sieve, one stone remover, refiner, one magnetic separation, send into gas flow sizing machine after wheat scourers and carry out air current classifying, by the wheat after air current classifying successively through intensive dampener, wheat wetting storehouse, two road stone removers, send into after two road magnetic separation and wipe wheat to go bacterium machine to carry out wiping skin degerming, wheat after degerming for wiping skin is carried out the choosing of laser look via rotary flat sieve feeding laser color selector, afterwards successively through spraying machine, clean wheat bin, clean wheat scale, 1B flour mill is sent into after three road magnetic separation.
More specifically, technique core of the present invention in traditional wheat cleaning technique, employs three roads be specifically designed to the operation removing mycotoxin wheat, is air current classifying respectively, wipes the degerming and laser look choosing of skin.
Described conventional wheat cleaning technology flow process be three sieves, two dozens, two de-stones, one selected, a brush wheat, one water, a spraying, a dry cleaning technological process of checking the weight.
Described three sieves refer to by the removal of tertiary screen reason various large assorted, little assorted; Described two roads thresh wheat and refer to the large granular impurity smashed in wheat, remove the impurity such as the built-in earth class of wheat ventral groove; Described two road de-stones refer to the stone class impurity removed in wheat; Described selected referring to together removes the xenogenesis such as buckwheat, oat grain grain in wheat; Obtain one brush wheat and refer to the wheat hair, scurf etc. of removing wheat; Described together water refer to adjustment wheat water content; Described spraying together refers to fine setting wheat water content content, makes to reach suitable moisture into mill wheat; Described checking the weight together refers to the flow of metering wheat.
Idiographic flow is as follows:
Wheat from dirty wheat storehouse is sent into 1B flour mill successively after vibratory sieve, one stone remover, refiner, one magnetic separation, wheat scourers, one rotary flat sieve, intensive dampener, wheat wetting storehouse, two road stone removers, two road magnetic separation, two road wheat scourers, two road rotary flat sieves, wheat brush machine, spraying machine, clean wheat bin, clean Mai Cheng tri-road magnetic separation.
And first processing step of the present invention is the air current classifying replaceable operation chain screening operation of one rotary flat sieve in the wheat cleaning technological process of prior art being adopted gas flow sizing machine.Its advantage is: can complete the fines removed after threshing wheat in wheat, the light task such as assorted, wheat can be divided into again heavy, lightweight, light assorted etc. several, thus isolates at this mycotoxin that part belongs to lightweight and pollute wheat.
Secondly, be second to be threshed wheat and wheat brush machine operation integrates, and adopt the degerming operation of wiping skin of wiping skin machine to substitute.This operation both had wheat scourers breaking down particles impurity, destroy the effect sticking to wheat impurity on the surface, have again and wipe the effect that wheat machine removes wheat hair, wheat skin.Therefore this operation is while erasing wheat wheat hair, epidermis, also makes the Testa Tritici layer segment of content of toxins enrichment be removed, thus reduces out the content of toxins of machine wheat.
3rd, be after secondary screen rotary flat sieve operation, the laser look that increases by one laser color selector before spray damping operation selects operation.In this operation, the choosing of laser look is adopted to carry out one laser look choosing to the wheat substantially reaching the requirement of clean wheat to this operation, the black grain, Huang Li etc. of removing mouldy pathology in wheat differ from wheat or other particles of normal wheat color, also serve the content of toxins reducing wheat.
Beneficial effect of the present invention is as follows:
1, due to and the present invention adopts the screening operation of air current classifying replaceable operation chain one rotary flat sieve of gas flow sizing machine, this removes fines in wheat, the light task such as assorted after just making can not only complete after the air current classifying operation of gas flow sizing machine and threshing wheat, wheat can be divided into again heavy, lightweight, light assorted etc. several, thus isolate at this mycotoxin that part belongs to lightweight and pollute wheat.
2, adopt the degerming operation of wiping skin of wiping skin machine both had wheat scourers breaking down particles impurity, destroy the effect sticking to wheat impurity on the surface, have again and wipe the effect that wheat machine removes wheat hair, wheat skin.Therefore this operation is while erasing wheat wheat hair, epidermis, also makes the Testa Tritici layer segment of content of toxins enrichment be removed, thus reduces out the content of toxins of machine wheat.
3, the laser look of laser color selector selects the employing of operation not only can remove the black grain, Huang Li etc. of mouldy pathology in wheat further and differs from wheat or other particles of normal wheat color, also serves the content of toxins reducing wheat.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Fig. 2 is structure principle chart of the present invention.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the top view of Fig. 2.
Fig. 5 is classification mechanism enlarged drawing.
Detailed description of the invention
The present invention is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, of the present inventionly be applicable to mycotoxin to pollute the concrete steps of technique of wheet grading cleaning as follows: by the wheat from dirty wheat storehouse successively through vibratory sieve, one stone remover, refiner, one magnetic separation, send into gas flow sizing machine after wheat scourers and carry out air current classifying, by the wheat after air current classifying successively through intensive dampener, wheat wetting storehouse, two road stone removers, send into after two road magnetic separation and wipe wheat to go bacterium machine to carry out wiping skin degerming, wheat after degerming for wiping skin is carried out the choosing of laser look via rotary flat sieve feeding laser color selector, afterwards successively through spraying machine, clean wheat bin, clean wheat scale, 1B flour mill is sent into after three road magnetic separation.
Wiping wheat described in the present invention removes bacterium machine: model FBGY.46B, is produced by the beneficial science and technology limited Company in Hanzhong three.Described laser color selector: model ZK6-B, is produced by Anhui Zhongke Photoelectricity Color Selection Mechanical Co., Ltd.The color selector of certain also other producers optional.
Gas flow sizing machine described in the present invention is the airflow classification device polluting wheat for mycotoxin of separate case application, its structure as shown in Figure 2,3, 4, the described airflow classification device polluting wheat for mycotoxin comprises classification case B, and described classification case B is made up of casing B1, classification mechanism B2, bunker for collecting B4, described casing B1 is arranged on bracing frame, material homogenizing box A as feeding machanism is installed above the side, top of casing B1, casing B1 outer face below material homogenizing box A position has air inlet C3, the opposite side end face of the casing B1 corresponding with air inlet C3 present position is provided with the air outlet C4 be connected with ventilating system C, in the bottom of casing B1, four bunker for collecting B4 are disposed with by air inlet side to air outlet side, the discharging opening be positioned at bottom four bunker for collecting B4 is to the tilting slope structure of homonymy, and in discharge outlet, spring pressure door is installed, the classification mechanism be made up of fixed graded plate 1 and roto-sort plate 2 is provided with above the charging aperture of four bunker for collecting B4, described fixed graded plate 1 is by will seven pieces of stationary barriers between eight longitudinal regions are divided into above four bunker for collecting B4 charging apertures to form (being namely divided between two longitudinal regions above each bunker for collecting charging aperture), described roto-sort plate 2 is that the graded plate being arranged on every two adjacent hopper junctions respectively by hinge in the mode longitudinally arranged by three pieces of lower limbs is formed, hinge is provided with the regulating handle 3 for driving graded plate to swing around hinge, under the driving of regulating handle 3 top edge of every block-grading plate respectively be positioned at above the lower limb of three pieces of stationary barriers of relevant position contact and coordinate.
Described ventilating system C is made up of centrifugal fan C1 and centrifugal deduster C5; The air inlet of described centrifugal fan C1 is connected with the air outlet of centrifugal deduster C5, the air outlet of centrifugal fan C1 is connected with the air inlet C3 on casing B1 by blower duct C2, the air outlet C4 of casing B1 is connected with the air inlet of centrifugal deduster C5, forms air circulation system; Described air inlet C3 is rectangular configuration pipeline, and be provided with the cowling panel that polylith equidistantly welds in air inlet C3 inside, the width of cowling panel is equal with air inlet width, and the length of cowling panel is equal with air inlet duct length.
More specifically, described material homogenizing box A is the feeding machanism of airflow classification device, wheat imports in material homogenizing box A by elephant trunk, and when wheat flows to classification case B from material homogenizing box A, on the width of whole material homogenizing box A, wheat flows in classification case B with the uniform bed of material of thickness.Classification case B is the key components of this device, and the classification of wheat just completes in classification case B.Shown in casing B1 one there is length and width and high size body structure, be arranged in equipment support.
The drainage line of described bunker for collecting B4 is square-section, and the end of square-section discharging opening is scarf shape, and spring pressure door is positioned at grooved discharging opening, and both sides and discharging opening side plate clearance control are at 1 ~ 1.5mm.When not having material, pressure door is closed, and the Action of Gravity Field downforce door when there being material at material is pressed off, thus material flows out.
Described fixed graded plate 1 is made up of (being a1, a2, a3, a4, a5, a6 and a7 respectively) (see Fig. 5) spaced four pieces of wide plates three pieces of narrow boards, is divided into 8 intervals by inner for casing B1 longitudinal direction, namely F1, F2 ... and F8.The two ends of fixed graded plate 1 are welded on casing B1 biside plate respectively, and its upper edge is contour.Described roto-sort plate 2 is that the graded plate being arranged on every two adjacent hopper junctions respectively by hinge in the mode longitudinally arranged by three pieces of lower limbs is formed, and hinge is provided with the regulating handle 3 for driving graded plate to swing around hinge, namely by rotation regulating handle 3, roto-sort plate 2 can be made to rotate, make the corresponding fixed graded plate 1 lower edge contact cooperation respectively of the upper edge of roto-sort plate 2, i.e. a1, a2, a3, or a3, a4, a5, or a5, a6, a7.Thus make to fall into different interval if the wheat in F2, F3 is due to the position difference of roto-sort plate 2, the first bunker for collecting can be fallen into, or in the second bunker for collecting; The wheat entered in F4, F5 can fall into the second bunker for collecting, or in the 3rd bunker for collecting; The wheat entered in F6, F7 can fall into the 3rd bunker for collecting, or in the 4th bunker for collecting, the wheat entering F8 interval falls into the 4th bunker for collecting.
When ventilating system is run, through the driving effect of centrifugal fan, air enters in blower duct, after over commutation air inlet, level enters in casing, after the wheet grading fallen in casing, wheat falls into bunker for collecting, and air then enters centrifugal deduster by the air outlet of casing and carries out dust separation, isolated dust is discharged by the bottom ash exhauster of centrifugal deduster, and cleaned air then enters blower fan to be continued to recycle.
During the work of this device, wheat is done to fall into casing in order to certain thickness by the refining of material homogenizing box, under horizontal air intake stream air power in casing and gravity synergy, the wheat grain that the weight falling into casing differs and impurity are accelerated by air-flow and carry, in horizontal projectile motion trajectory sedimentation.Light grains wheat accelerates soon, runs far; Heavies wheat accelerates slowly, fed distance is short, finally falls into and is fixed in 8 intervals of graded plate separation, by the position of regulating rotating type graded plate, finally fall into 4 bunker for collecting.
In general, the first bunker for collecting is heavy wheat; Second bunker for collecting is lighter heavy wheat; 3rd bunker for collecting is lightweight wheat; 4th bunker for collecting is light assorted, fines etc.Dust then enters centrifugal deduster with air-flow to carry out purifying and being discharged by centrifugal deduster.
The wheat lack of filling power that mycotoxin pollutes, particle are light, and the wheat do not infected by mycotoxin is full, particle weight, and therefore, in this device, the mycotoxin of lightweight pollutes wheat and separated, and falls into the 3rd bunker for collecting (or second bunker for collecting).
Claims (1)
1. one kind is applicable to the technique that mycotoxin pollutes wheet grading cleaning, it is characterized in that: the concrete steps of described technique are as follows: by the wheat from dirty wheat storehouse successively through vibratory sieve, one stone remover, refiner, one magnetic separation, send into gas flow sizing machine after wheat scourers and carry out air current classifying, by the wheat after air current classifying successively through intensive dampener, wheat wetting storehouse, two road stone removers, send into after two road magnetic separation and wipe wheat to go bacterium machine to carry out wiping skin degerming, wheat after degerming for wiping skin is carried out the choosing of laser look via rotary flat sieve feeding laser color selector, afterwards successively through spraying machine, clean wheat bin, clean wheat scale, 1B flour mill is sent into after three road magnetic separation.
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| CN201510453532.5A CN105032529B (en) | 2015-07-29 | 2015-07-29 | A kind of technique suitable for mycotoxin pollution wheet grading cleaning |
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| CN201510453532.5A CN105032529B (en) | 2015-07-29 | 2015-07-29 | A kind of technique suitable for mycotoxin pollution wheet grading cleaning |
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| CN105032529B CN105032529B (en) | 2018-02-13 |
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| CN108813150A (en) * | 2018-06-29 | 2018-11-16 | 漳州傲农牧业科技有限公司 | A method of reducing corn mycotoxin |
| CN109603985A (en) * | 2018-11-29 | 2019-04-12 | 江南大学 | A kind of production method of the raw wet Flour product tailored flour of low bacterium |
| CN110859268A (en) * | 2019-12-02 | 2020-03-06 | 中储粮成都储藏研究院有限公司 | Method for reducing content of wheat vomitoxin |
| CN111418758A (en) * | 2020-05-08 | 2020-07-17 | 武汉轻工大学 | Method for reducing vomitoxin content of wheat, wheat flour and flour product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108813150A (en) * | 2018-06-29 | 2018-11-16 | 漳州傲农牧业科技有限公司 | A method of reducing corn mycotoxin |
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| CN110859268A (en) * | 2019-12-02 | 2020-03-06 | 中储粮成都储藏研究院有限公司 | Method for reducing content of wheat vomitoxin |
| CN111418758A (en) * | 2020-05-08 | 2020-07-17 | 武汉轻工大学 | Method for reducing vomitoxin content of wheat, wheat flour and flour product |
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