CN110508482A - A kind of high-efficiency seed sorting screen and screening plant - Google Patents
A kind of high-efficiency seed sorting screen and screening plant Download PDFInfo
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- CN110508482A CN110508482A CN201910830949.7A CN201910830949A CN110508482A CN 110508482 A CN110508482 A CN 110508482A CN 201910830949 A CN201910830949 A CN 201910830949A CN 110508482 A CN110508482 A CN 110508482A
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- 238000012216 screening Methods 0.000 title claims abstract description 25
- 239000004579 marble Substances 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 13
- 241000196324 Embryophyta Species 0.000 claims description 12
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 240000002791 Brassica napus Species 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 33
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 7
- 244000188595 Brassica sinapistrum Species 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000005256 carbonitriding Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/30—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4654—Corrugated Screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention relates to a kind of high-efficiency seed sorting screen and screening plants, belong to agricultural machinery technological field.The sorting screen includes with the rectangular sieve frame of seed half to be screened self-flowing angle ± 1 ° tiltably-mounted, and the top and bottom surface of screen frame are respectively arranged on the weave mesh of the rigid compass screen surface of densely covered mesh and the rectangular leak hole that gathers；The identical appearance ball sieve lattice of several sizes are separated by longitudinal blend stop and lateral rib in screen frame；Compass screen surface is wavy in periodic relief corresponding with horizontal bar stripe pitch, and the horizontal segment and tilting section of wave crest and trough equal length are formed by connecting by round-corner transition, and the inclination angle of tilting section is equal to seed self-flowing angle ± 1 °；Hold in ball sieve lattice and places the plastics marble that several diameters are greater than leak hole side length.The present invention, which effectively increases, cleans quality, can get the cleaning effect of almost non-blind area, guarantees operation quality for a long time.
Description
Technical field
The present invention relates to a kind of seed riddle, especially a kind of high-efficiency seed sorting screen also relates to sieve accordingly
Screening device belongs to agricultural machinery technological field.
Background technique
Screening is the conventional means of purification of seeds.During seed screening, inevitably appearance is stifled sieves phenomenon, influences screening work
The small granule seed of industry quality, especially rapeseed etc is often difficult to clear up after blocking.Blocked to solve sorting screen,
To guaranteeing being normally carried out for purification of seeds, seed refining apparatus is often equipped with sieve cleaning mechanism, wherein with application No. is
200620159381.9 Chinese patent is most representative, and seed sieve cleaning mechanism is made of cleaning ball-collecting rack, cleaning ball, described
Clean ball-collecting rack longitudinal direction be equipped with partition, it is described cleaning ball-collecting rack on there are also mold compression moulding retaining groove and punching forming herringbone
Shape strip material-dropping hole is placed with a certain number of cleaning balls in slot.Using above-mentioned seed sieve cleaning mechanism, even only with a set of bias
Linkage, while screen box and sieve cleaning mechanism are driven, make high elastic rubber ball with the reciprocally swinging of sieve cleaning mechanism, by sieve and clearly
Random collision between clean ball-collecting rack and hit the material for cramming sieve pore, reach cleaning purpose.
However practice have shown that, there are following places to be modified for the above-mentioned prior art: 1) compass screen surface is plane, not only its screening surface
The screening efficiency that product determines can be further improved, and seed is completely dependent on vibrosieve, and screening effect needs further to be changed
It is kind；2) cleaning marble diameter is uniform, the collision movement certain regularity easy to form when cleaning, and effect is not ideal enough；3) consider
To being prone to wear, sieve thickness is thicker, is easy obstruction.
Summary of the invention
It is an object of the invention to: it is directed to disadvantage of the existing technology, a kind of by optimization design, screening and clear is provided
The high-efficiency seed sorting screen that significant effect improves is sieved, and then proposes corresponding screening plant.
To achieve the above object, the basic technical scheme of high-efficiency seed sorting screen of the present invention are as follows: including with seed to be screened
The rectangular sieve frame of half self-flowing angle ± 1 ° tiltably-mounted, the top and bottom surface of the screen frame are respectively arranged on the rigid of densely covered mesh
Property the compass screen surface and weave mesh of rectangular leak hole of gathering；Several size phases are separated by longitudinal blend stop and lateral rib in the screen frame
Same appearance ball sieves lattice；
The compass screen surface is in wavy, the level of wave crest and trough equal length of periodic relief corresponding with horizontal bar stripe pitch
Section and tilting section are formed by connecting by round-corner transition, and the inclination angle of the tilting section is equal to seed self-flowing angle ± 1 °；
Two kinds of partial size plastics marble for holding several diameters of placement in ball sieve lattice and being greater than the leak hole side length.
The unique curved-surface structure compass screen surface of the present invention not only increases sieving area, and during making full use of screen for seeds to shake
Gravity flow, effectively increase and clean quality.Meanwhile the cleaning marble of different-diameter under compass screen surface, predetermined density can get almost without
The cleaning effect of blind area, ensure that operation quality for a long time, has properly settled the easily stifled sieve of the prior art, difficult cleaning, has influenced operation matter
The problem of amount.
It is that the compass screen surface is thin by 0.5 ± 0.1mm by surface carbo-nitriding Wear-resistant Treatment that the present invention, which further improves,
Steel plate is made.It is surface-treated and can guarantee that compass screen surface has enough service life, and thickness reduces as far as possible, and kind is greatly reduced
The stifled sieve phenomenon of son is conducive to cleaning but also obtaining more large amplitude when it is hit by cleaning marble.
The present invention further improves, and the compass screen surface two sides are supported by the similar profiling item of shape.
The present invention further improves, 200 ± 3 millimeters of side length for holding ball sieve lattice, wherein placing three diameters
30 ± 1 millimeters, four 25 ± 1 millimeters of diameter of plastics marble.
Screening plant of the invention is that five layers of high-efficiency seed sorting screen are with three one group two above, following set difference
Inclination is fixedly mounted on upper screen box and lower screen box based on starting of oscillation mechanism, and tilt angle is equal to the gravity flow of rape seed half
Angle.
The present invention also further improve be, one group of top and time high-rise two high-efficiency seed sorting screens above
High-end end be staggered the having a down dip under end of the feedboard for being undertaken on feed inlet, and low side is respectively provided with impurities removal slot, fills separately below
There is batch turning plate parallel with it；Middle layer high-efficiency seed sorting screen in the following set reversely inclines with one group of sorting screen above
It is tiltedly, high-end to be undertaken under the two batch turning plate low sides that top layer is staggered with time upper layer corresponding end of high-efficiency seed sorting screen,
Batch turning plate parallel with it is housed down；The secondary lower layer of the following set and the high-end end of lowest level high-efficiency seed sorting screen are wrong
Open the low side for being undertaken on the middle layer high-efficiency seed sorting screen, under be respectively provided with impurity separating plate parallel with it, low side leads to
Mouth is planted out；The low side of each impurity separating plate is respectively provided with impurities removal slot.
The present invention still further improves, the compass screen surface sieve of the top layer, secondary upper layer and middle layer high-efficiency seed sorting screen
Eye is the elliptical aperture that width is greater than seed particle size；The compass screen surface mesh of the secondary lower layer and lowest level high-efficiency seed sorting screen is width
Less than the elliptical aperture of seed particle size.
Detailed description of the invention
It describes in detail below in conjunction with drawings and examples to the present invention.
Fig. 1 is to clean screen(ing) machine screening plant structural schematic diagram using rape seed of the invention.
Fig. 2 is the dimensional decomposition structure diagram of Fig. 1 (starting of oscillation mechanism is omitted).
Fig. 3 is the structure diagram of one embodiment of the invention.
Fig. 4 is the schematic perspective view (removing compass screen surface) of Fig. 3 embodiment.
Fig. 5 is the dimensional decomposition structure diagram of Fig. 3 embodiment.
Fig. 6 is the design parameter schematic diagram of Fig. 3 embodiment.
Fig. 7 is the marble density test result schematic diagram of Fig. 3 embodiment.
Fig. 8 is Fig. 3 embodiment marble particle size test result schematic diagram.
Specific embodiment
The high-efficiency seed sorting screen that the present embodiment is suitable for the screening of partial size 2mm specification rape seed is mounted on shown in Fig. 1 and Fig. 2
Rape seed is cleaned in the screening plant of screen(ing) machine, and the feed inlet 1-3 of top one end of the screening plant, which is provided with towards end, to have a down dip
Feedboard 1-2, five layers of high-efficiency seed, which are cleaned, is sieved into two groups --- one group two and following set three above, rectangular mesh screen
Frame can pull and push fixed in position with the 5 ° of inclinations of rape seed half self-flowing angle respectively by upper rail 1-4 and lower guideway 1-4 '
In upper screen box 1-1 and lower screen box 1-11 based on starting of oscillation mechanism, thus can be convenient by needing to change sorting screen.
The high-end end of the top layer in one group and time upper layer high-efficiency seed sorting screen 2, which is staggered, above is undertaken on feedboard 1-
2 have a down dip under end, and low side is respectively provided with the impurities removal slot 1-5 that sundries is discharged towards two sides；Top layer and time upper layer high-efficiency seed
Batch turning plate 1-6 parallel with it is respectively provided under sorting screen 2.
Middle layer high-efficiency seed sorting screen 2 ' and upper one group of sorting screen reversed dip in following set, it is high-end to be undertaken on most
Upper layer and the corresponding end of time upper layer high-efficiency seed sorting screen 2 are staggered under two batch turning plate 1-6 low sides, under be equipped with it is parallel with it
Batch turning plate 1-6 '.The secondary lower layer of following set and the high-end end of lowest level high-efficiency seed sorting screen be staggered accept it is efficient in middle level
The low side of seed riddle 2 ', under be respectively provided with impurity separating plate parallel with it, the low side of each impurity separating plate is respectively provided with sundries
The impurities removal slot being discharged towards two sides.The low side of secondary lower layer and lowest level high-efficiency seed sorting screen leads to kind mouth 1-8 out.
In this way, screening plant constitutes the detour sorting screen subchannel of "the" shape.Starting of oscillation mechanism includes being located at upper screen box
The two phase place that motor 1-9 drives between 1-1 and lower screen box 1-11 is staggered 180 ° of eccentric wheel mechanism 1-7, two eccentric wheel mechanism 1-7
It is connect respectively by connecting rod 1-10 and 1-10 ' with upper screen box 1-1 and lower screen box 1-11.Upper screen box 1-1 and the lower bottom screen box 1-11
Connect respectively by vertical elastic strip with rack, thus can motor by eccentric wheel connecting rod mechanism drive under left and right reciprocating screen
It is dynamic.
Upper and lower two groups of 2 or 2 ' basic structure of high-efficiency seed sorting screen is identical, as shown in Figures 3 to 6, rectangular sieve frame 2-1
Top and bottom surface be respectively arranged on the rigid compass screen surface 2-2 of densely covered mesh and the weave mesh 2- of the densely covered rectangular leak hole of side length 12.5mm
4.The compass screen surface of the mesh different from of each layer high-efficiency seed sorting screen, top layer and secondary upper layer and middle layer high-efficiency seed sorting screen
Mesh is the elliptical aperture of width 3.2mm, long 25mm, horizontal spacing 5mm, the longitudinal pitch 30mm in adjacent ellipses hole；Secondary lower layer and most
The mesh of lower layer is the elliptical aperture of width 1.8mm, long 20mm, horizontal spacing 4mm, the longitudinal pitch 25mm in adjacent ellipses hole.
It is equal that several length and width are separated by longitudinal blend stop 3-1 and transverse direction rib 3-2 in rectangular sieve frame 2-1 that four mouldings surround
Lattice are sieved for 200 millimeters, the identical appearance ball of size.To obtain optimal cleaning effect, applicant carried out two groups of Optimum Experiments, first
Influence of the cleaning marble quantity to cleaning efficiency that diameter is 25mm is first investigated.As shown in Figure 7, when cleaning marble negligible amounts
When, marble are low to the shock frequency of compass screen surface in operation process, and cleaning effect is undesirable, so that cleaning efficiency is lower.With marble
The increase of quantity, cleaning efficiency are also gradually promoted, when marble number is 7, cleaning efficiency highest.When quantity further increases,
The movement of marble is influenced each other and is restricted, and cleaning efficiency starts to reduce.Illustrate the density of plastics marble with 1-2/squares
Decimetre is advisable.Then, further to promote cleaning effect, quality is preferably cleaned, is keeping marble sum 7 constant
In the case of, the big marble replacement diameter of diameter 30mm is the small marble of 25mm one by one by applicant, and investigates replacement different number
Influence of the small marble to effect is cleaned.As shown in Figure 8, when replacing original 3 small marble using 3 big marble, i.e., each
Sieve lattice clean that effect is best when being 3 big 4 small marble of marble, because size marble will be hit with varying strength and the random of frequency
It beats, and reduces and hit blind area.It thereby determines that, places 30 millimeters and four 25 millimeters of diameter of three diameters in each appearance ball sieve lattice
Plastics marble.Marble diameter is greater than leak hole side length.
As shown in fig. 6, rigidity compass screen surface 2-2 is made of the 0.5mm thin plate by surface carbo-nitriding Wear-resistant Treatment, it is in
Wavy, the two sides profiling 2-5 support similar by shape of periodic relief corresponding with lateral rib 3-2 spacing, to avoid
Crack.Its wave crest and the tilting section AB and horizontal segment BC of trough equal length are formed by connecting by fillet R=400mm transition, installation
The inclination angle of tilting section AB afterwards is equal to 10 ° of seed self-flowing angle.Compared with prior art, the high-efficiency seed of the present embodiment cleans sifter device
There is following remarkable advantage:
1) curved-surface structure compass screen surface increases sieving area, improves screening efficiency；
2) effect is cleaned according to effective improve that be obliquely installed of self-flowing angle；
3) different-diameter, predetermined density cleaning marble can get best cleaning effect, guarantee operation quality for a long time；
4) the wear-resistant and anti-blocking property of the thin compass screen surface of Wear-resistant Treatment is all good, and is conducive to cleaning.
When work, upper screen box and lower screen box are under the drive of motor-driven two connecting rod of eccentric wheel, respectively with frequency 5Hz, row
Journey 30mm reciprocative-screening.Along feedboard, about half falls on that top layer, the other half falls on time to the seed to be cleaned of feed inlet input
Layer high-efficiency seed sorting screen compass screen surface on, sieve leakage seed fall on corresponding batch turning plate after, sieve and wander to middle layer high-efficiency seed
On sorting screen, and is then sieved along compass screen surface to impurities removal slot and be discharged by the relatively bigger material (being commonly called as big miscellaneous) that sieve stays.
Later, it falls on seed on the high-efficiency seed sorting screen of middle layer and falls into the batch turning plate of lower section across compass screen surface, and sieve about one
Partly fall on that time lower layer, the other half falls on the compass screen surface of lowest level high-efficiency seed sorting screen, and sieve to be converged to out by its low side and plant
Mouth output, and then sieved by the smaller sundries (being commonly called as small miscellaneous) that sieve is fallen on each layer impurity separating plate to impurities removal slot and be discharged.
Experiments have shown that the screening plant of the present embodiment is successively fallen using the sieve of seed and sieve stays, sorting is eliminated greatly respectively
Miscellaneous and small miscellaneous, the high-efficiency seed sorting screen of middle layer reversed dip is not only acted as with the effect of cramped construction linking detour runner,
And due to compass screen surface and sieve reversed dip and cause to be practically in jolt state, to make watering and separation procedure winnow with a dustpan, sieve effect combines, nothing
By being sorting or cleaning, effect is more preferable.In short, the present embodiment is thin due to being concerned about many optimization designs generally ignored
Section, therefore the complete technical solution not being readily conceivable that is drafted out, the screening and cleaning effect of optimization can be obtained.
Claims (7)
1. a kind of high-efficiency seed sorting screen, it is characterised in that: pacify including being tilted with seed half to be screened self-flowing angle ± 1 °
The rectangular sieve frame set, the top and bottom surface of the screen frame are respectively arranged on the volume of the rigid compass screen surface of densely covered mesh and the rectangular leak hole that gathers
Knitmesh lattice；The identical appearance ball sieve lattice of several sizes are separated by longitudinal blend stop and lateral rib in the screen frame；
The compass screen surface is in wavy, the level of wave crest and trough equal length of periodic relief corresponding with horizontal bar stripe pitch
Section and tilting section are formed by connecting by round-corner transition, and the inclination angle of the tilting section is equal to seed self-flowing angle ± 1 ° to be cleaned；
Two kinds of partial size plastics marble for holding several diameters of placement in ball sieve lattice and being greater than the leak hole side length.
2. high-efficiency seed sorting screen according to claim 1, it is characterised in that: the compass screen surface uses total by surface carbon nitrogen
The 0.5mm thin plate for seeping Wear-resistant Treatment is made.
3. high-efficiency seed sorting screen according to claim 2, it is characterised in that: the compass screen surface two sides are by similar imitative of shape
The support of shape item.
4. high-efficiency seed sorting screen according to claim 3, it is characterised in that: 200 ± 3 milli of side length for holding ball sieve lattice
Rice, wherein placing three 30 ± 1 millimeters, four 25 ± 1 millimeters of diameter of diameter of plastics marble.
5. using the screening plant of any high-efficiency seed sorting screen of Claims 1-4, it is characterised in that: five layers efficient kind
Sub- sorting screen tilted respectively with one group two above, following set three be fixedly mounted on the upper screen box based on starting of oscillation mechanism and under
Screen box, tilt angle are equal to rape seed half self-flowing angle.
6. screening plant according to claim 5, it is characterised in that: one group of top and time high level two above described
The high-end end of high-efficiency seed sorting screen is staggered the having a down dip under end of the feedboard for being undertaken on feed inlet, and low side is respectively provided with impurities removal
Slot is equipped with batch turning plate parallel with it separately below；
Middle layer high-efficiency seed sorting screen and one group of sorting screen reversed dip above in the following set, it is high-end to be undertaken on most
Under the two batch turning plate low sides that upper layer and time upper layer corresponding end of high-efficiency seed sorting screen are staggered, under parallel with it fall is housed
Flitch；
The secondary lower layer of the following set and the high-end end of lowest level high-efficiency seed sorting screen, which are staggered, is undertaken on the middle layer height
Imitate the low side of seed riddle, under be respectively provided with impurity separating plate parallel with it, low side leads to kind of a mouth；Each impurity separating plate it is low
End is respectively provided with impurities removal slot.
7. screening plant according to claim 6, it is characterised in that: the top layer, secondary upper layer and middle layer high-efficiency seed
The compass screen surface mesh of sorting screen is the elliptical aperture that width is greater than seed particle size；The secondary lower layer and lowest level high-efficiency seed sorting screen
Compass screen surface mesh is the elliptical aperture that width is less than seed particle size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830949.7A CN110508482B (en) | 2019-09-04 | 2019-09-04 | High-efficient seed cleaning sieve and sieving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830949.7A CN110508482B (en) | 2019-09-04 | 2019-09-04 | High-efficient seed cleaning sieve and sieving mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN110508482A true CN110508482A (en) | 2019-11-29 |
| CN110508482B CN110508482B (en) | 2024-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910830949.7A Active CN110508482B (en) | 2019-09-04 | 2019-09-04 | High-efficient seed cleaning sieve and sieving mechanism |
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