CN109530206A - A kind of material screening device - Google Patents
A kind of material screening device Download PDFInfo
- Publication number
- CN109530206A CN109530206A CN201811346610.1A CN201811346610A CN109530206A CN 109530206 A CN109530206 A CN 109530206A CN 201811346610 A CN201811346610 A CN 201811346610A CN 109530206 A CN109530206 A CN 109530206A
- Authority
- CN
- China
- Prior art keywords
- sieve
- horizontal
- grating
- plate
- sieve plate
- 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.)
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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
-
- 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
- B07B1/4636—Regulation of screen apertures
-
- 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
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/522—Cleaning with brushes or scrapers with brushes
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention is by being arranged the sieve for being provided with the vertical and horizontal plate and central hollow that are parallel to each other up and down, sieve pore is formed with horizontal grating and perpendicular grating, the upper lower cross plate of perpendicular grating and sieve plate is fixed, the both ends of horizontal grating are connected to motor, motor is arranged in guide rail, a plurality of horizontal grating is driven to move upwards on sieve simultaneously by movement of the motor in guide rail, to adjust the distance between adjacent horizontal grating, to adjust the size of sieve pore, the sizing screening to different-grain diameter material is completed with a sieve.
Description
Technical field
The present invention relates to screening technique field, specially a kind of material screening device.
Background technique
When existing screening plant carries out multistage screening to material, the mode for mostly using setting multilevel screen to be screened,
The sieve pore of multilayer screen cloth is gradually increased, and screens away the smallest material of partial size on first layer sieve, so that the object of other partial sizes
Material stays on first layer sieve, and the sieve of lower layer is put into after being collected to the material of other partial sizes, is sieved layer by layer to material
Choosing, the material of different-grain diameter is screened and is collected, but this screening mode has to that multiple sieves, screening plant is arranged
Structure is complicated, cumbersome in screening process, in the prior art also useful one piece inclined sieve plate different size of sieve pore setting up and down,
So that material carries out sizing screening, but this screening side to material by different size of sieve during falling on sieve plate
Formula makes the excessive velocities that material glides on sieve plate, so that material screening is not thorough, the material of small particle is in small-bore
Screening, which is not thorough, on sieve plate slides into large aperture area.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of material screening devices, using one piece of plane sieve plate to object
Material carries out the separation of multistage partial size.
To realize the above-mentioned technical purpose, the invention provides the following technical scheme:
A kind of material screening device, including sieve plate, sieve plate are provided with the vertical and horizontal plate being parallel to each other, the centre of vertical and horizontal plate up and down
For hollow shape, the right and left of sieve plate is provided with guide rail, and the sieve pore being made of on sieve plate horizontal grating and perpendicular grating erects grating and sieve
The upper and lower ends of plate are fixedly connected, and the upper end of perpendicular grating is arranged in horizontal grating, and the quantity of horizontal grating is n item, under sieve plate
End transverse slat is first horizontal grating, and the upper end transverse slat close to sieve plate is the horizontal grating of nth, and the horizontal grating of nth has certain height,
The distance of the horizontal grating of nth to the vertical and horizontal plate in sieve plate upper end is greater than at a distance from (n-1)th horizontal grating, is highly greater than institute's material screening
Height, the both ends of horizontal grating are connected with motor-driven carrier, and the bottom of two motor-driven carriers is provided with pulley, and two pulleys are all provided with
It sets in guide rail, graduated scale is provided with beside two guide rails, program is configured in motor-driven carrier, the lower end of sieve is arranged
Have small particle material material-receiving device, the upper end of sieve is provided with multiple brushes, and one end of brush is connected on sieve, brush it is another
One end is connected on the cross bar of brush attachment device, and cross bar both ends are connected with support rod, and the bottom end of support rod is provided with idler wheel, rolling
Wheel contact at the edge of sieve, the width of cross bar and sieve plate it is of same size, the quantity of brush is set as the bottom surface covering of brush
Entire sieve.
Further, the upper end of sieve is provided with feeding device, and the bottom end of sieve is provided with shaking device, initial Shi Youjin
Material device pours into the material of various partial sizes on sieve, and sieve is shaken under the action of shaking device, above sieve
Material is screened, and the material of minimum grain size is screened into small particle collection device.
Further, sieve is provided with the collection device of other partial size materials perpendicular to the lower end of guide rail, and collection device is
Bucket-shaped, the width of collection device is greater than the width of sieve, and the lower end of collection device and sieve is hinged, the lower end setting of collection device
There is a piston device, piston device includes perpendicular to aggregate bin bottom end and apical support lives the mandril of collection bucket bottom end, mandril and flat
Row is hinged in the rotating bar of sieve, and the bottom end of rotating bar is provided with cylinder, cylinder drive telescopic rod pull one end of rotating bar to
Lower movement drives the rotating bar other end to move upwards, and drives mandril to push upwards, so that collection bucket be driven to overturn.
Further, pushing meanss are connected on the cross bar of brush attachment device, pushing meanss are driven by driving device, are driven
Dynamic device can be cylinder.
Further, after having screened small particle material, brush connection dress is driven with driving device driving pushing meanss
Set and moved on sieve, move to lower end from the upper end of sieve, by the material brush of no other partial sizes screened away to other
Partial size collection device is collected.
Further, after to the material collection of other partial sizes, starting motor-driven carrier slides in guide rail, drives 1-n item horizontal
The upward end motion in the lower end of grating from sieve plate, the program setting in motor-driven carrier are to drive transporting to sieve plate upper end for the first horizontal grating
Dynamic distance is x, and it is 2x that the 2nd article of horizontal grating, which moves upwards distance, and the distance that the horizontal grating of nth moves upwards is nx, when initial, the
The horizontal grating of n item with to being greater than nx at a distance from the vertical and horizontal plate in sieve plate upper end.
Further, after the distance for adjusting adjacent horizontal grating, starting piston device drives collection bucket reversion so that other grains
The material of diameter is poured on sieve, is screened again to big partial size material.
Compared with prior art, the present invention provides a kind of material screening device, have it is following the utility model has the advantages that
The present invention is by being arranged the sieve for being provided with the vertical and horizontal plate and central hollow that are parallel to each other up and down, with horizontal sieve
Item and perpendicular grating form sieve pore, and the upper lower cross plate of perpendicular grating and sieve plate is fixed, the both ends of horizontal grating are connected to motor, and motor is set
It sets in guide rail, drives a plurality of horizontal grating to move upwards on sieve simultaneously by movement of the motor in guide rail, to adjust
The distance between adjacent horizontal grating completes the classifying screen to different-grain diameter material with a sieve to adjust the size of sieve pore
Choosing.
Detailed description of the invention
Fig. 1 is mesh structure schematic diagram of the present invention.
Fig. 2 is guide rail structure schematic diagram of the present invention.
Fig. 3 is material-receiving device schematic diagram of the invention.
Fig. 4 is the guide rail structure schematic diagram of the embodiment of the present invention 2.
In figure: 1- transverse slat, 2- riser, 3- erect grating, the horizontal grating of 4-, 5- guide rail, 6- graduated scale, 7- electric vehicle, 8- cross
Bar, 9- support rod, 10- brush, 11- small particle collection device, 12- other partial size collection devices, 13- mandril, 14- rotating bar,
15- cylinder, 16- blower.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1, with reference to Fig. 1-3, a kind of material screening device, including sieve plate, sieve plate are provided with mutually flat up and down
Capable vertical and horizontal plate (1,2), the centre of vertical and horizontal plate (1,2) are hollow shape, and the right and left of sieve plate is provided with guide rail 5, on sieve plate by
The sieve pore that horizontal grating 4 and perpendicular grating 3 form, perpendicular grating 3 are fixedly connected with the upper and lower ends of sieve plate, and the horizontal setting of grating 4 is in perpendicular sieve
The upper end of item 3, the quantity of horizontal grating 4 are n item, and the lower end transverse slat 1 close to sieve plate is first horizontal grating 4, close to the upper of sieve plate
End transverse slat 1 is the horizontal grating 4 of nth, and the horizontal grating 4 of nth has certain height, the horizontal grating 4 of nth to sieve plate upper end transverse slat 1
Distance is greater than at a distance from (n-1)th horizontal grating 4, is highly greater than the height of institute's material screening, the both ends of horizontal grating 4 are connected with electricity
Dynamic trolley 7, the bottom of two motor-driven carriers 7 are provided with pulley, and two pulleys are arranged in guide rail 5, the side of two guide rails 5
While being provided with graduated scale 6, program is configured in motor-driven carrier 7, the lower end of sieve is provided with small particle material material-receiving device
11, the upper end of sieve is provided with multiple brushes 10, and one end of brush 10 is connected on sieve, and the other end of brush 10 is connected to brush
On the cross bar 8 of sub-connecting device, 8 both ends of cross bar are connected with support rod 9, and the bottom end of support rod 9 is provided with idler wheel, and idler wheel contact exists
The edge of sieve, the width of cross bar 8 and sieve plate it is of same size, the quantity of brush 10 is set as the entire sieve of bottom surface covering of brush
Net, the upper end of sieve are provided with feeding device (not shown go out), and the bottom end of sieve is provided with shaking device (not shown go out), initially
When the material of various partial sizes is poured on sieve by feeding device, sieve is shaken under the action of shaking device, to sieve
Material above is screened, and the material of minimum grain size is screened into small particle collection device 11, and sieve is perpendicular to leading
The lower end of rail 5 is provided with the collection device 12 of other partial size materials, collection device 12 be it is bucket-shaped, the width of collection device 12 is greater than
The lower end of the width of sieve, collection device and sieve is hinged, and the lower end of collection device is provided with piston device, and piston device includes
Perpendicular to aggregate bin bottom end and apical support lives the mandril 13 of collection bucket bottom end, and mandril 13 is cut with scissors with the rotating bar 14 for being parallel to sieve
It connects, the bottom end of rotating bar 14 is provided with cylinder 15, and one end that cylinder 15 drives telescopic rod to pull rotating bar 14 moves downward, and drives
14 other end of rotating bar moves upwards, and mandril 13 is driven to push upwards, so that collection bucket 12 is driven to overturn, brush attachment device
Pushing meanss (not shown go out) is connected on cross bar 8, pushing meanss are driven by driving device, and driving device can be cylinder,
After small particle material has been screened, 10 attachment device of brush is driven to move on sieve with driving device driving pushing meanss, from
The upper end of sieve moves to lower end, and the material brush of no other partial sizes screened away to other partial size collection devices is received
Collection, after the material collection of other partial sizes, starting motor-driven carrier 7 slides in guide rail 5, drives the horizontal grating of 1-n item from sieve plate
The upward end motion in lower end, the program setting in motor-driven carrier 7 be drive the first horizontal grating 4 to sieve plate upper end move distance be x,
It is 2x that 2nd article of horizontal grating 4, which moves upwards distance, and the distance that the horizontal grating 4 of nth moves upwards is nx, when initial, the horizontal sieve of nth
Item 4 is with to nx is greater than at a distance from sieve plate upper end transverse slat 1, and after the distance for adjusting adjacent horizontal grating 4, starting piston device, which drives, to be collected
Bucket reversion screens big partial size material again so that the material of other partial sizes is poured on sieve.
Embodiment 2, with reference to Fig. 1,4, a kind of material screening device, including sieve plate, sieve plate are provided with mutually flat up and down
Capable vertical and horizontal plate (1,2), the centre of vertical and horizontal plate (1,2) are hollow shape, and the right and left of sieve plate is provided with guide rail 5, on sieve plate by
The sieve pore that horizontal grating 4 and perpendicular grating 3 form, perpendicular grating 3 are fixedly connected with the upper and lower ends of sieve plate, and the horizontal setting of grating 4 is in perpendicular sieve
The upper end of item 3, the quantity of horizontal grating 4 are n item, and the lower end transverse slat 1 close to sieve plate is first horizontal grating 4, close to the upper of sieve plate
End transverse slat 1 is the horizontal grating 4 of nth, and the horizontal grating 4 of nth has certain height, the horizontal grating 4 of nth to sieve plate upper end transverse slat 1
Distance is greater than at a distance from (n-1)th horizontal grating 4, is highly greater than the height of institute's material screening, the both ends of horizontal grating 4 are connected with electricity
Dynamic trolley 7, the bottom of two motor-driven carriers 7 are provided with pulley, and two pulleys are arranged in guide rail 5, the side of two guide rails 5
While being provided with graduated scale 6, program is configured in motor-driven carrier 7, the lower end of sieve is provided with small particle material material-receiving device
11, the lower end of sieve is additionally provided with blower 16, and the upper end of sieve is provided with feeding device (not shown go out), the bottom end setting of sieve
There is shaking device (not shown go out), is poured into the material of various partial sizes on sieve by feeding device when initial, in shaking device
Effect lower screen cloth is shaken, and screens to the material above sieve, the material of minimum grain size is screened into granule
Diameter collection device 11, small particle material screening after, starting blower 16 to sieve top dry so that the material of other partial sizes to
Upper suspension, starting motor-driven carrier 7 slide in guide rail 5, drive the upward end motion in lower end of 1-n item horizontal grating from sieve plate, electronic
Program setting in trolley 7 be drive the first horizontal grating 4 to sieve plate upper end move distance be x, the 2nd article of horizontal grating 4 fortune upwards
Dynamic distance is 2x, and the distance that the horizontal grating 4 of nth moves upwards is nx, when initial, the horizontal grating 4 of nth with arrive sieve plate upper end transverse slat
1 distance is greater than nx, after the distance for adjusting adjacent horizontal grating 4, stops blower 16 and dries, so that the material of other partial sizes is fallen
It is screened again on sieve.
Claims (7)
1. a kind of material screening device, it is characterised in that: including sieve plate, sieve plate be provided with up and down be parallel to each other it is vertical and horizontal
The centre of plate, vertical and horizontal plate is hollow shape, and the right and left of sieve plate is provided with guide rail, is made of on sieve plate horizontal grating and perpendicular grating
Sieve pore, perpendicular grating are fixedly connected with the upper and lower ends of sieve plate, and the upper end of perpendicular grating is arranged in horizontal grating, and the quantity of horizontal grating is n
Item, the lower end transverse slat close to sieve plate are first horizontal grating, and the upper end transverse slat close to sieve plate is the horizontal grating of nth, the horizontal sieve of nth
Item has certain height, and the distance of the horizontal grating of nth to the vertical and horizontal plate in sieve plate upper end is greater than at a distance from (n-1)th horizontal grating, high
Degree is greater than the height of institute's material screening, and the both ends of horizontal grating are connected with motor-driven carrier, and the bottom of two motor-driven carriers is provided with
Pulley, two pulleys are arranged in guide rail, and graduated scale is provided with beside two guide rails, is configured with journey in motor-driven carrier
Sequence, the lower end of sieve are provided with small particle material material-receiving device, and the upper end of sieve is provided with multiple brushes, one end connection of brush
On sieve, the other end of brush is connected on the cross bar of brush attachment device, and cross bar both ends are connected with support rod, support rod
Bottom end is provided with idler wheel, and idler wheel contact is in the edge of sieve, of same size, the quantity setting of brush of the width and sieve plate of cross bar
Entire sieve is covered for the bottom surface of brush.
2. material screening device according to claim 1, it is characterised in that: the upper end of sieve is provided with feeding device, sieve
The bottom end of net is provided with shaking device, is poured into the material of various partial sizes on sieve by feeding device when initial, in shaking device
Under the action of sieve shaken, the material above sieve is screened, the material of minimum grain size is screened into small
Partial size collection device.
3. material screening device according to claim 2, it is characterised in that: sieve is provided with it perpendicular to the lower end of guide rail
The collection device of his partial size material, collection device be it is bucket-shaped, the width of collection device is greater than the width of sieve, collection device and sieve
The lower end of net is hinged, and the lower end of collection device is provided with piston device, and piston device includes perpendicular to aggregate bin bottom end and top
The mandril of collection bucket bottom end is supported, mandril is hinged with the rotating bar for being parallel to sieve, and the bottom end of rotating bar is provided with cylinder, gas
One end that cylinder drives telescopic rod to pull rotating bar moves downward, and the rotating bar other end is driven to move upwards, and mandril is driven to push up upwards
It is dynamic, so that collection bucket be driven to overturn.
4. material screening device according to claim 3, it is characterised in that: be connected with and push away on the cross bar of brush attachment device
Dynamic device, pushing meanss are driven by driving device, and driving device can be cylinder.
5. material screening device according to claim 4, it is characterised in that: after having screened small particle material, with drive
Dynamic device driving pushing meanss drive brush attachment device to move on sieve, move to lower end from the upper end of sieve, will not have
The material brush of other partial sizes screened away to other partial size collection devices are collected.
6. material screening device according to claim 5, it is characterised in that: after the material collection of other partial sizes, starting
Motor-driven carrier slides in guide rail, drives the upward end motion in lower end of 1-n item horizontal grating from sieve plate, and the program in motor-driven carrier is set
Be set to the first horizontal grating of drive is x to sieve plate upper end move distance, and it is 2x that the 2nd article of horizontal grating, which moves upwards distance, and nth is horizontal
The distance that grating moves upwards is nx, when initial, the horizontal grating of nth at a distance from the vertical and horizontal plate in sieve plate upper end greater than nx.
7. material screening device according to claim 5, it is characterised in that: after the distance of the adjacent horizontal grating of adjustment, starting
Piston device drives collection bucket to invert so that the material of other partial sizes is poured on sieve, is sieved again to big partial size material
Choosing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346610.1A CN109530206A (en) | 2018-11-13 | 2018-11-13 | A kind of material screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346610.1A CN109530206A (en) | 2018-11-13 | 2018-11-13 | A kind of material screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530206A true CN109530206A (en) | 2019-03-29 |
Family
ID=65847122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346610.1A Pending CN109530206A (en) | 2018-11-13 | 2018-11-13 | A kind of material screening device |
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| CN (1) | CN109530206A (en) |
Cited By (11)
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|---|---|---|---|---|
| CN109894368A (en) * | 2019-04-04 | 2019-06-18 | 蔡海潮 | Five cereals filter device |
| CN110560360A (en) * | 2019-09-30 | 2019-12-13 | 上海旭虹精密模具制造有限公司 | Automatic ceramic chip screening equipment |
| CN111389730A (en) * | 2020-03-27 | 2020-07-10 | 新昌县盈启自动化设备有限公司 | Two-way splitter is used in fire retardant processing |
| CN112191529A (en) * | 2020-09-10 | 2021-01-08 | 苏州金丝港智能发展股份有限公司 | Seed grading screening device for breeding and use method thereof |
| CN112604943A (en) * | 2020-11-30 | 2021-04-06 | 温州竺陌机械科技有限公司 | Induction type material grading plant for construction machinery |
| CN112871637A (en) * | 2021-01-12 | 2021-06-01 | 易铝 | Vibration feeding equipment with adjustable grid gaps for coal mine |
| CN112934692A (en) * | 2021-02-07 | 2021-06-11 | 中国水利水电第九工程局有限公司 | Sand classifying and screening machine and sand classifying and screening construction process |
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| CN113634477A (en) * | 2021-07-28 | 2021-11-12 | 神华准格尔能源有限责任公司 | Coal screening device |
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| CN110560360B (en) * | 2019-09-30 | 2024-05-31 | 上海旭虹精密模具制造有限公司 | Automatic ceramic chip screening equipment |
| CN110560360A (en) * | 2019-09-30 | 2019-12-13 | 上海旭虹精密模具制造有限公司 | Automatic ceramic chip screening equipment |
| CN111389730A (en) * | 2020-03-27 | 2020-07-10 | 新昌县盈启自动化设备有限公司 | Two-way splitter is used in fire retardant processing |
| CN112191529A (en) * | 2020-09-10 | 2021-01-08 | 苏州金丝港智能发展股份有限公司 | Seed grading screening device for breeding and use method thereof |
| CN112604943A (en) * | 2020-11-30 | 2021-04-06 | 温州竺陌机械科技有限公司 | Induction type material grading plant for construction machinery |
| CN112871637A (en) * | 2021-01-12 | 2021-06-01 | 易铝 | Vibration feeding equipment with adjustable grid gaps for coal mine |
| CN112934692A (en) * | 2021-02-07 | 2021-06-11 | 中国水利水电第九工程局有限公司 | Sand classifying and screening machine and sand classifying and screening construction process |
| CN112934692B (en) * | 2021-02-07 | 2023-01-31 | 中国水利水电第九工程局有限公司 | Sand classifying and screening machine and sand classifying and screening construction process |
| CN113188943A (en) * | 2021-04-20 | 2021-07-30 | 山东大学 | Automatic rock slag screening and testing robot and method suitable for TBM |
| CN113634477A (en) * | 2021-07-28 | 2021-11-12 | 神华准格尔能源有限责任公司 | Coal screening device |
| CN114405817A (en) * | 2021-12-21 | 2022-04-29 | 三一汽车制造有限公司 | Screen device and mixing plant |
| CN116441153A (en) * | 2023-06-13 | 2023-07-18 | 中国云南路建集团股份公司 | Gravel screening equipment for municipal construction |
| CN116441153B (en) * | 2023-06-13 | 2023-08-22 | 中国云南路建集团股份公司 | Gravel screening equipment for municipal construction |
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