CN109013338A - A kind of novel specific gravity classificatory - Google Patents
A kind of novel specific gravity classificatory Download PDFInfo
- Publication number
- CN109013338A CN109013338A CN201811067454.5A CN201811067454A CN109013338A CN 109013338 A CN109013338 A CN 109013338A CN 201811067454 A CN201811067454 A CN 201811067454A CN 109013338 A CN109013338 A CN 109013338A
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- China
- Prior art keywords
- height
- leg
- sieve
- support plate
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 25
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000003860 storage Methods 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- 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
-
- 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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- 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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
Abstract
A kind of novel specific gravity classificatory, support device is installed between screen bed base and pedestal, support device includes the transverse bar for being fixed on screen bed base lower part, rear support leg component, there are two front support leg components for the lower rotational connection of transverse bar, two front support leg components are each attached in support plate, one end of support plate and pedestal are hinged, first height-regulating device is installed on pedestal, the connection of the free end of first height-regulating device and support plate, first height-regulating device adjusts the height of support plate free end and then adjusts the difference in height of two front support leg components, support plate is equipped with adjusting rod, one end of adjusting rod and support plate are hinged, its other end is connected with the second height-regulating device, second height-regulating device is mounted on the base.It can satisfy different fine graded needs, and sub-material is more thorough；It can be adjusted according to inclination angle of the material to wind speed and sieve, realize the separation to different material；Applied widely, the grain that difference is big and difference is small is able to achieve classification.
Description
Technical field
The present invention relates to grain processing field, especially a kind of novel specific gravity classificatory.
Background technique
Grain cleaning equipment is seed processing industry and indispensable one of the equipment of grain stocking industry, and grain is being put in storage
Or need to screen away light miscellaneous, small miscellaneous, the big miscellaneous and moldy kernel being mingled in grain before processing, to guarantee the high-quality of grain
Degree.Although the grain processing industry screen classification technique of China there has been significant progress, existing gravity grading equipment is then
It is preceding endfeed, the difference using specific gravity, heavier feeds are brought out in the past, light material is brought out from afterwards, this gravity grading technology
Being only limitted to two kinds, mixtures of materials difference of specific gravity is big and granularity is close, is difficult meet demand in the actual production process.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the purpose of the present invention is just to provide a kind of novel specific gravity essence
Select machine, using the frictional force between wind-force, vibration force, material gravity, material and compass screen surface and material itself automatically form on to
Under it is material bed, can be realized the Accurate Classification to material, it is applied widely.
Its solution is a kind of novel specific gravity classificatory, including sieve nest component, is mounted on the defeated wind on sieve nest component top
Component, the pedestal being supported to sieve nest component, the sieve nest component include sieve, carry out around sieve one week and to sieve
The screen bed base of support, the defeated wind component include the fan housing for covering on sieve top, and fan housing top is communicated with wind conveying pipe, on wind conveying pipe
It is connected with control valve, vibration device is fixedly connected on the screen bed base, support dress is installed between the screen bed base and pedestal
It sets, the support device includes the transverse bar for being fixed on screen bed base lower part, rear support leg component, the lower rotational connection of transverse bar
There are two front support leg component, front support leg component lower part is equipped with support plate, and two front support leg components are each attached in support plate,
One end of support plate and pedestal are hinged, and the first height-regulating device, the free end of the first height-regulating device and support plate are equipped on pedestal
Connection, first height-regulating device adjust the height of support plate free end and then adjust the difference in height of two front support leg components, institute
Support plate is stated equipped with adjusting rod, one end of the adjusting rod and support plate are hinged, and the other end is connected with the second height-regulating device,
Second height-regulating device is mounted on the base, and rear support leg component is fixed on adjusting rod.Second height-regulating device adjusts adjusting rod certainly
Realize the adjusting to the height of rear support leg component height in turn by the height held.
Preferably, front support leg component includes front upper leg, front lower leg, is connected between front upper leg and front lower leg by the first spring
It connects, front upper leg and transverse bar are rotatablely connected, and front lower leg is fixedly connected with support plate.The rear support leg component upper leg after including,
Leg is descended afterwards, is connected between rear upper leg and afterwards lower leg by second spring, and rear upper leg is fixedly connected with screen bed base, afterwards lower leg and adjusting
Bar is fixedly connected.
Preferably, the first height-regulating device includes the first nut connecting with base rotation, the with support plate rotation connection
One screw rod, the first screw rod and the first nut screw are rotatablely connected.
Preferably, the second height-regulating device includes first connecting rod, the second connecting rod, third connecting rod, the 4th connecting rod,
Two nuts, lantern ring, the first connecting rod are connect with the second connecting rod by the first pin rotation, and the first pin is fixed with pedestal
Connection, the second connecting rod are connect with third connecting rod by the second pin rotation, and the second pin is fixedly connected with lantern ring, and third connects
Extension bar is connect with the 4th connecting rod by third pin rotation, and third pin is fixedly connected with adjusting rod, the 4th connecting rod and the
One connecting rod is connected by the 4th pin rotation, and the 4th pin is fixedly connected with the second nut, the second nut screw connection
There is the second screw rod, the second screw rod and lantern ring are rotatablely connected.
Preferably, vibration device includes two vibrating motors being fixed on screen bed base.
Preferably, screen slope be arranged, sieve top be equipped be equipped with across fan housing feed inlet, feed inlet be located at sieve compared with
A high upper lateral part, the lower side of sieve are equipped with discharge port.
Preferably, the top of sieve is equipped with cutting plate, and cutting plate is rotatably connect with screen bed base.
The beneficial effects of the present invention are: can satisfy different fine graded needs, and sub-material is more thorough；It can be according to object
The inclination angle of wind speed and sieve is adjusted in material, realizes the separation to different material；Applied widely, difference is big and difference is small
Grain is able to achieve classification.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the right view of Fig. 1 of the present invention.
Fig. 3 is the schematic diagram of support construction of the present invention.
Fig. 4 is Fig. 3 rearview of the present invention.
Fig. 5 is the schematic diagram of support plate of the present invention and adjusting rod.
Fig. 6 is the schematic diagram of screen assemblies of the present invention.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
It is provided by Fig. 1 to Fig. 6, a kind of novel specific gravity classificatory, including sieve nest component 1, is mounted on 1 top of sieve nest component
Defeated wind component, the pedestal 2 that sieve nest component 1 is supported, which is characterized in that the sieve nest component 1 includes sieve 3, around sieve
Net 3 one weeks and the screen bed base 4 of the support carried out to sieve 3, the defeated wind component includes the fan housing 5 for covering on 3 top of sieve, fan housing
5 tops are communicated with wind conveying pipe 6, and control valve is connected on wind conveying pipe 6, is fixedly connected with vibration device on the screen bed base 4, described
Support device is installed between screen bed base 4 and pedestal 2, the support device include the transverse bar 7 for being fixed on 4 lower part of screen bed base,
Rear support leg component 8, there are two front support leg components 9 for the lower rotational connection of transverse bar 7, and 9 lower part of front support leg component is equipped with
Support plate 10, two front support leg components 9 are each attached in support plate 10, and one end of support plate 10 and pedestal 2 are hinged, on pedestal 2
First height-regulating device is installed, the first height-regulating device is connect with the free end of support plate 10, and first height-regulating device adjusts branch
The height of 10 free end of fagging and then the difference in height for adjusting two front support leg components 9, the support plate 10 are equipped with adjusting rod 11,
One end of the adjusting rod 11 and support plate 10 are hinged, and the other end is connected with the second height-regulating device, the installation of the second height-regulating device
On pedestal 2, rear support leg component 8 is fixed on adjusting rod 11.The height of second height-regulating device adjusting, 11 free end of adjusting rod
And then adjusting of the realization to the height of 8 height of rear support leg component.Two front support leg components 9 and rear support leg component 8, pass through
Adjust adjusting of the height realization of these three supporting points to 3 gradient of sieve.First height-regulating device adjusts 10 free end of support plate
Height, and then realize the adjusting of two front support leg components, 9 difference in height, support plate 10 and 11 square crossing of adjusting rod, support plate
The rear support leg component 8 being also able to drive on adjusting rod 11 and adjusting rod 11 when 10 inclination deflects.
The front support leg component 9 includes front upper leg 12, front lower leg 13, passes through first between front upper leg 12 and front lower leg 13
Spring 14 connects, and front upper leg 12 and transverse bar 7 are rotatablely connected, and front lower leg 13 is fixedly connected with support plate 10.The rear support leg
Component 8 upper leg 15, afterwards lower leg 16 after including, are connected between rear upper leg 15 and afterwards lower leg 16 by second spring 17, rear upper leg 15
It is fixedly connected with screen bed base 4, lower leg 16 is fixedly connected with adjusting rod 11 afterwards.Between front support leg component 9 and rear support leg component 8
It is respectively provided with spring, is capable of increasing the Oscillation Amplitude of 3 component of sieve.
First height-regulating device includes that the first nut 18 being rotatablely connected with pedestal 2 and support plate 10 are rotatablely connected
First screw rod 29, the first screw rod 29 are connect with 18 helical rotation of the first nut.The first screw rod 29 is rotated, to realize to support plate 10
The adjusting of free end height.
Second height-regulating device includes first connecting rod 19, the second connecting rod 20, third connecting rod 21, the 4th connecting rod
22, the second nut 23, lantern ring 24, the first connecting rod 19 are connect with the second connecting rod 20 by the first pin rotation, and first
Pin is fixedly connected with pedestal 2, and the second connecting rod 20 is connect with third connecting rod 21 by the second pin rotation, the second pin with
Lantern ring 24 is fixedly connected, and third connecting rod 21 is connect with the 4th connecting rod 22 by third pin rotation, third pin and adjusting
Bar 11 is fixedly connected, and the 4th connecting rod 22 is connect with first connecting rod 19 by the 4th pin rotation, the 4th pin and the second spiral shell
Mother 23 is fixedly connected, and 23 spiral of the second nut is connected with the second screw rod 30, and the second screw rod 30 is rotatablely connected with lantern ring 24.The
One connecting rod 19, the second connecting rod 20, third connecting rod 21, the 4th connecting rod 22 form parallelogram sturcutre, pass through rotation
Second screw rod 30, can be realized the distance between the first pin and third pin.And then ground, it realizes to 11 free end of adjusting rod height
The adjusting of degree, and then the height for adjusting rear support leg component 8 realizes the adjusting to 3 component deflection angle of sieve.
The vibration device includes two vibrating motors being fixed on screen bed base 4 25.
The sieve 3 is obliquely installed, and 3 top of sieve is equipped with the feed inlet 26 across fan housing 5, and feed inlet 26 is located at sieve
The higher upper lateral part of net 3, the lower side of sieve 3 are equipped with discharge port 27.
The top of the sieve 3 is equipped with cutting plate, and cutting plate is rotatably connect with screen bed base 4.Cutting plate setting is going out
At material mouth 27, Accurate Classification can be carried out to material.
In the use of the present invention, passing through the inclination angle of the first screw rod 29 and the adjustable sieve 3 of the second screw rod 30, realize to not
With the adjusting of material falling speed.The coefficient of colligation of material is big up to be moved along 3 longitudinal direction of sieve, and coefficient of colligation is small along compass screen surface
Longitudinal direction moves down, when material movement to discharge end, from top to bottom along compass screen surface longitudinal direction, the coefficient of colligation of material by
Small to greatly, discharge end, which is provided with cutting plate, facilitates material progress Accurate Classification, is equipped with cutting plate, client in discharge port 27
The product of cutting plate selection production can be needed to rotate according to the production of oneself.Pass through the adjustable wind speed of control valve and wind
Amount, is adjusted according to different materials, realizes the accurate screening to material.
The beneficial effects of the present invention are: can satisfy different fine graded needs, and sub-material is more thorough；It can be according to object
The inclination angle of wind speed and sieve is adjusted in material, realizes the separation to different material；Applied widely, difference is big and difference is small
Grain is able to achieve classification.
Embodiment described above is not intended to limit the scope of the present invention, before not departing from design concept of the present invention
It puts, the various changes and improvements that technical staff described in this field makes technical solution of the present invention should all be included in the present invention
Claims determine protection scope in.
Claims (7)
1. a kind of novel specific gravity classificatory, including sieve nest component (1), the defeated wind component that is mounted on sieve nest component (1) top, to sieve
The pedestal (2) that body component (1) is supported, which is characterized in that the sieve nest component (1) includes sieve (3), around sieve (3)
One week and the screen bed base (4) of support that carries out to sieve (3), the defeated wind component includes covering on the fan housing on sieve (3) top
(5), fan housing (5) top is communicated with wind conveying pipe (6), and control valve, fixed company on the screen bed base (4) are connected on wind conveying pipe (6)
It is connected to vibration device, support device is installed between the screen bed base (4) and pedestal (2), the support device includes being fixed on
The transverse bar (7), rear support leg component (8) of screen bed base (4) lower part, there are two front supports for the lower rotational connection of transverse bar (7)
Leg assembly (9), front support leg component (9) lower part are equipped with support plate (10), and two front support leg components (9) are each attached to support plate
(10) on, one end and pedestal (2) of support plate (10) hingedly, are equipped with the first height-regulating device, the first height-regulating device on pedestal (2)
It is connect with the free end of support plate (10), first height-regulating device adjusts the height of support plate (10) free end and then adjusts two
The difference in height of front support leg component (9), the support plate (10) be equipped with adjusting rod (11), one end of the adjusting rod (11) with
Hingedly, the other end is connected with the second height-regulating device to support plate (10), and the second height-regulating device is mounted on pedestal (2), rear support
Leg assembly (8) is fixed on adjusting rod (11).
2. a kind of novel specific gravity classificatory according to claim 1, which is characterized in that the front support leg component (9) include before on
Leg (12), front lower leg (13), between front upper leg (12) and front lower leg (13) by the first spring (14) connect, front upper leg (12) with
Transverse bar (7) rotation connection, front lower leg (13) is fixedly connected with support plate (10), the rear support leg component (8) include after on
Leg (15) descends leg (16) afterwards, afterwards upper leg (15) and afterwards lower leg (16) between connected by second spring (17), afterwards upper leg (15) and
Screen bed base (4) is fixedly connected, and leg (16) is descended to be fixedly connected with adjusting rod (11) afterwards.
3. a kind of novel specific gravity classificatory according to claim 1 or 2, which is characterized in that first height-regulating device
The first nut (18) including being rotatablely connected with pedestal (2), the first screw rod (29) with support plate (10) rotation connection, the first spiral shell
Bar (29) is connect with the first nut (18) helical rotation.
4. a kind of novel specific gravity classificatory according to claim 1 or 2, which is characterized in that second height-regulating device
Including first connecting rod (19), the second connecting rod (20), third connecting rod (21), the 4th connecting rod (22), the second nut (23),
Lantern ring (24), the first connecting rod (19) are connect with the second connecting rod (20) by the first pin rotation, the first pin and bottom
Seat (2) is fixedly connected, and the second connecting rod (20) is connect with third connecting rod (21) by the second pin rotation, the second pin and set
Ring (24) is fixedly connected, and third connecting rod (21) is connect with the 4th connecting rod (22) by third pin rotation, third pin with
Adjusting rod (11) is fixedly connected, and the 4th connecting rod (22) is connect with first connecting rod (19) by the 4th pin rotation, the 4th pin
Nail is fixedly connected with the second nut (23), and the second nut (23) spiral is connected with the second screw rod (30), the second screw rod (30)
It is rotatablely connected with lantern ring (24).
5. a kind of novel specific gravity classificatory according to claim 1, which is characterized in that the vibration device includes two solid
The vibrating motor (25) being scheduled on screen bed base (4).
6. a kind of novel specific gravity classificatory according to claim 1, which is characterized in that the sieve (3) is obliquely installed, sieve
Net (3) top is equipped with the feed inlet (26) across fan housing (5), and feed inlet (26) is located at the higher upper lateral part of sieve (3), sieves
Net (3) lower side is equipped with discharge port (27).
7. a kind of novel specific gravity classificatory according to claim 1, which is characterized in that the top of the sieve (3) is equipped with
Cutting plate, cutting plate are rotatably connect with screen bed base (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067454.5A CN109013338A (en) | 2018-09-13 | 2018-09-13 | A kind of novel specific gravity classificatory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067454.5A CN109013338A (en) | 2018-09-13 | 2018-09-13 | A kind of novel specific gravity classificatory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109013338A true CN109013338A (en) | 2018-12-18 |
Family
ID=64622095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811067454.5A Pending CN109013338A (en) | 2018-09-13 | 2018-09-13 | A kind of novel specific gravity classificatory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109013338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967356A (en) * | 2019-05-13 | 2019-07-05 | 河南粮院机械制造有限公司 | A kind of triangle grader |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169492Y (en) * | 1993-08-20 | 1994-06-22 | 湖北省粮机厂研究设计所 | Specific gravity stone separator |
| CN2329441Y (en) * | 1998-05-13 | 1999-07-21 | 农业部南京农业机械化研究所 | Gravity-type separator working table tilt angle regulator |
| CN201940369U (en) * | 2010-12-31 | 2011-08-24 | 沈玉现 | Suction type proportional corn embryo selector |
| CN102502221A (en) * | 2011-12-01 | 2012-06-20 | 攀钢集团攀枝花钢钒有限公司 | Material distribution device |
| CN103495557A (en) * | 2013-10-10 | 2014-01-08 | 石河子市华农种子机械制造有限公司 | Numerical control specific-gravity type seed classificator |
| CN206827664U (en) * | 2017-05-16 | 2018-01-02 | 宁夏易兴实业有限公司 | A kind of material elevator |
| CN209006180U (en) * | 2018-09-13 | 2019-06-21 | 河南粮院机械制造有限公司 | A kind of novel specific gravity classificatory |
-
2018
- 2018-09-13 CN CN201811067454.5A patent/CN109013338A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169492Y (en) * | 1993-08-20 | 1994-06-22 | 湖北省粮机厂研究设计所 | Specific gravity stone separator |
| CN2329441Y (en) * | 1998-05-13 | 1999-07-21 | 农业部南京农业机械化研究所 | Gravity-type separator working table tilt angle regulator |
| CN201940369U (en) * | 2010-12-31 | 2011-08-24 | 沈玉现 | Suction type proportional corn embryo selector |
| CN102502221A (en) * | 2011-12-01 | 2012-06-20 | 攀钢集团攀枝花钢钒有限公司 | Material distribution device |
| CN103495557A (en) * | 2013-10-10 | 2014-01-08 | 石河子市华农种子机械制造有限公司 | Numerical control specific-gravity type seed classificator |
| CN206827664U (en) * | 2017-05-16 | 2018-01-02 | 宁夏易兴实业有限公司 | A kind of material elevator |
| CN209006180U (en) * | 2018-09-13 | 2019-06-21 | 河南粮院机械制造有限公司 | A kind of novel specific gravity classificatory |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967356A (en) * | 2019-05-13 | 2019-07-05 | 河南粮院机械制造有限公司 | A kind of triangle grader |
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