CN113909088A - Soil-rock mixture screening device with dust catching function - Google Patents
Soil-rock mixture screening device with dust catching function Download PDFInfo
- Publication number
- CN113909088A CN113909088A CN202111018796.XA CN202111018796A CN113909088A CN 113909088 A CN113909088 A CN 113909088A CN 202111018796 A CN202111018796 A CN 202111018796A CN 113909088 A CN113909088 A CN 113909088A
- Authority
- CN
- China
- Prior art keywords
- screen
- screening
- soil
- dust
- screens
- 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.)
- Granted
Links
Images
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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- 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
- Combined Means For Separation Of Solids (AREA)
Abstract
A soil-rock mixture screening device with a dust catching function is suitable for separation and use of soil-rock mixtures. The dust collecting device comprises a screening system, a driving system, a dust collecting system and a control system, wherein the screening system comprises a screen and a screen side baffle, the driving system comprises a supporting rod, a circular ring bracket, a transmission rod, a motor and a slide rail, the dust collecting device comprises an equipment shell, an industrial dust collector, a dust collecting bag and a weighing device, and the control system comprises a rotating speed controller and a slide rail controller; the driving system transmits the angular velocity to enable the screening system to operate, the control system adjusts the rotating speed and the position of the driving system, and the dust collecting system collects dust in the operation process of the screening system. The invention can greatly reduce air pollution in the screening process and greatly ensure that the screening data is accurate.
Description
Technical Field
The invention relates to a soil-rock mixture screening device, in particular to a soil-rock mixture screening device with a dust catching function, which is suitable for separating soil-rock mixtures.
Background
The soil-rock mixture is as the composition material such as mine refuse dump, tailing storehouse, city waste rock heap and mountain landslide body, and the fail safe nature of geotechnical engineering is directly influenced to the mechanical properties of soil-rock mixture, and the hole between the thick granule of soil-rock mixture that the grading is good is filled by finer granule, and chain filling effect makes soil-rock mixture compactness better, and water permeability and compressibility are also less, and the mechanical properties that soil-rock mixture after the consolidation demonstrates are also stronger. Therefore, accurately obtaining the grading characteristics of the collected sample plays an important role in the construction of geotechnical engineering.
However, the earth-rock mixture is screened by adopting an earth-engineering grading screen, dust particles are scattered in the air due to vibration in the screening process, the air environment of a laboratory is seriously polluted, and the harm to testers is great. Meanwhile, the dissipated dust particles cannot be brought into the statistical category of the grading curve, so that the grading curve obtained by the geotechnical grading sieve is slightly distorted.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the soil-rock mixture screening device with the dust catching function, and the device can effectively solve the problems of large pollution and inaccurate detection data in the traditional soil-rock mixture screening test.
In order to solve the technical problem, the invention provides a soil-rock mixture screening device with a dust catching function, which is characterized in that: comprises a screening system, a driving system, a dust catching system and a control system; the dust collecting system is arranged at the bottom of the screening system and used for absorbing dust generated in the operation process of the screening system, and the control system is used for controlling the rotating speed of the driving system;
the screening system is composed of a plurality of mutually nested cylindrical screen structures which are horizontally arranged in a multilayer mode, the dust catching device comprises an equipment shell which is arranged on the outer side of the plurality of mutually nested cylindrical screen structures and wraps the equipment shell, the position of the equipment shell is kept different and does not rotate along with the plurality of mutually nested cylindrical screen structures, an air outlet is formed in the bottom of the equipment shell, the air outlet is connected with an industrial dust collector through a pipeline, a dust collecting bag is arranged on the lower portion of the industrial dust collector, and a weighing device is arranged at the bottom of the dust collecting bag.
The center of the multi-layer horizontally-arranged and mutually-nested cylindrical screen structures is an innermost screen, the innermost screen is a horizontally-arranged cylindrical screen, two sides of the innermost screen are respectively provided with a screen side baffle, and the center of the screen side baffle on one side is provided with a ventilation feed inlet; the outer side of the innermost screen is provided with a plurality of screens which are connected in a layer-by-layer nested manner through screen side baffles at two sides, the screening system is integrally closed, and the apertures of the innermost screen and the plurality of layers of screens arranged at the outer side of the innermost screen are gradually reduced from inside to outside;
the driving system comprises rotating shaft supports arranged on two sides of a plurality of mutually-nested cylindrical screen structures horizontally arranged in multiple layers, one group of rotating shaft supports are connected with a motor arranged on the other side support through a transmission rod for rotating shafts along with the rotating shafts, the other group of rotating shaft supports are connected with a support through a rotating shaft, the driving rotating shafts are connected with the motor arranged on the other side support through transmission rods, the rotating shafts and the driving rotating shafts along with the rotating shafts are ring supports coaxially arranged, and each ring support is connected with one screen side through a plurality of supporting rods.
The screen side baffles on two sides of each screen in the plurality of nested cylindrical screen structures are in sliding connection with other screens arranged on the inner side and the outer side.
A sliding rail allowing the motor to slide is arranged between the motor and the support arranged on the motor, a transmission rod of the motor is meshed with the circular ring supports through a gear for driving, the meshed gear can only be meshed with and drive 2 or more circular ring supports simultaneously according to needs, and different screens are driven to rotate according to the position of the motor on the sliding rail; the motor circularly reciprocates on the slide rail at a constant speed as required, so that the screen meshes are sequentially driven to rotate, the torque on the transmission rod is reduced, and the service life of the transmission rod is prolonged.
An external gear transmission section with the length of 160mm is arranged on the transmission rod, 4 screens can be rotated simultaneously, and the rotation speed of the screens is 20 r/min.
The number of the cylindrical screens stacked layer by layer is 8, and the screen mesh diameters of the screens are 10, 5, 2.5, 1.25, 0.63, 0.315, 0.16 and 0.08mm from inside to outside respectively; the distance between two adjacent screens is 50 mm; the innermost screen had a mesh diameter of 10mm and a radius of 100 mm.
The moving distance of the motor on the sliding rail is 400 mm.
The control system is arranged on a bracket where the motor is arranged and comprises a rotating speed controller and a sliding rail controller which are arranged on the bracket.
Has the advantages that:
1. the dust catching device reduces the escape of dust in the screening process, and greatly prevents testers and other equipment in a laboratory from being exposed to an environment with high dust;
2. the dust collecting system has good replenishing effect, can obtain more accurate particle grading curve of the soil-rock mixture through the collected particle mass, and greatly optimizes the evaluation index of rock engineering;
3. this device uses the multilayer tube-shape screen cloth structure of level setting, compares the screen cloth structure that common slope set up, and the area of granule and screen cloth contact is bigger in this device use, makes the screen cloth area obtain bigger application to improve the efficiency of screening.
4. The device has high automation degree, and greatly reduces the labor intensity of testers.
Drawings
FIG. 1 is a schematic structural diagram of a soil and rock mixture screening device with a dust catching function according to the present invention;
FIG. 2 is a schematic illustration of the interconnection of screen side dams in the screening system of the present invention;
FIG. 3 is a schematic illustration of the present screening system after charging;
figure 4 is a schematic illustration of the horizontal screening system of the present invention in use with screening as compared to a conventional inclined screening device.
In the figure: 1-screening system, 101-screen, 102-screen side baffle, 2-driving system, 201-supporting rod, 202-circular bracket, 203-driving rod, 204-motor, 205-sliding rail, 3-dust catching system, 301-equipment housing, 302-industrial dust collector, 303-dust collecting bag, 304-weighing device, 4-control system, 401-speed controller and 402-sliding rail controller.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
as shown in fig. 2, the soil and rock mixture screening device with the dust catching function of the invention comprises a screening system 1, a driving system 2, a dust catching system 3 and a control system 4; the two sides of the screening system 1 are provided with brackets which are connected with each other through a driving system 2 shaft, the driving system 2 outputs angular velocity to drive the screening system 1 to rotate, the dust catching system 3 is arranged at the bottom of the screening system 1 and used for absorbing dust generated in the operation process of the screening system 2, and the control system 4 is used for controlling the rotating speed of the driving system 2; the control system 4 is arranged on a support where the motor 204 is arranged, the control system 4 comprises a rotating speed controller 401 and a sliding rail controller 402 which are arranged on the support, the screening system 1 is formed by a plurality of layers of horizontally-arranged nested cylindrical screen structures, the dust catching device comprises an equipment shell 301 which is arranged on the outer side of the plurality of nested cylindrical screen structures and wraps the cylindrical screen structures, the position of the equipment shell 301 is kept different and does not rotate along with the plurality of nested cylindrical screen structures, an air outlet is formed in the bottom of the equipment shell 301 and is connected with the industrial dust collector 302 through a pipeline, a dust collecting bag 303 is arranged on the lower portion of the industrial dust collector 302, and a weighing device 304 is arranged at the bottom of the dust collecting bag 303.
As shown in fig. 2 and fig. 3, the central position of the multi-layer horizontally-arranged multiple mutually-nested cylindrical screen structures is an innermost screen 103, the innermost screen 103 is a horizontally-arranged cylindrical screen, two sides of the innermost screen 103 are respectively provided with a screen side baffle 102, and the center of the circle of the screen side baffle 102 on one side is provided with a ventilation feed inlet; a plurality of screens 101 which are connected in a layer-by-layer nested manner through screen side baffles 102 at two sides are arranged at the outer side of the innermost screen 103, the screens 101 which are connected in a layer-by-layer nested manner ensure that the whole screening system 1 is closed, and the apertures of the innermost screen 103 and the multi-layer screens 101 arranged at the outer side of the innermost screen 103 are gradually reduced from inside to outside; the driving system 2 comprises rotating shaft supports arranged on two sides of a plurality of mutually-nested cylindrical screen structures horizontally arranged in multiple layers, one group of rotating shaft supports are connected with a support through rotating shafts, the other group of rotating shaft supports are driving rotating shafts, the driving rotating shafts are connected with motors 204 arranged on supports on the other side through transmission rods 203, the driving rotating shafts and the driving rotating shafts are a plurality of coaxially-arranged circular ring supports 202, and each circular ring support 202 is connected with one screen side baffle 102 through a plurality of supporting rods 201.
The number of the cylindrical screens 101 stacked layer by layer is 8, and the screen mesh diameters of the screens 101 are respectively 10, 5, 2.5, 1.25, 0.63, 0.315, 0.16 and 0.08mm from inside to outside; the distance between two adjacent screens 101 is 50 mm; the innermost screen 103 has a mesh diameter of 10mm and a radius of 100 mm.
The screen side baffles 102 on two sides of each screen 101 in the plurality of nested cylindrical screen structures are in sliding connection with other screens 101 arranged on the inner side and the outer side.
Between the motor 204 and the support it is provided with a slide 206 allowing the motor 204 to slide: the moving distance of the motor 204 on the sliding rail 205 is 400mm, the transmission rod 203 of the motor 204 is meshed with the circular ring brackets 202 through gears and driven, the gears are meshed according to needs, only 2 or more circular ring brackets 202 can be meshed and driven at the same time, and different screens 101 are driven to rotate according to the position of the motor 204 on the sliding rail 206; the motor 204 circularly reciprocates on the slide rail 206 at a constant speed as required, so that the screens 101 are sequentially driven to rotate, the torque on the transmission rod is reduced, and the service life of the transmission rod is prolonged.
Specifically, the transmission rod 203 is provided with an external gear transmission section with the length of 160mm, 4 screens 101 can be rotated simultaneously, and the rotation speed of the screens 101 is 20 r/min.
As shown in fig. 4, the inclined cylindrical screen causes material accumulation at the lower part of the screen, and particularly when the centrifugal method is used for screening particles, large particles are accumulated at the lower part of the screen, and small particles float on the large particles. The material to be screened does not roll over with the rotation of the screen drum. This device utilizes the leak to continue the feed from the ventilation feed inlet.
Claims (9)
1. The utility model provides a soil stone mixture screening plant with catch dirt function which characterized in that: comprises a screening system (1), a driving system (2), a dust catching system (3) and a control system (4); the two sides of the screening system (1) are provided with supports and are connected with each other through a driving system (2) shaft, the driving system (2) outputs angular velocity to drive the screening system (1) to rotate, the dust catching system (3) is arranged at the bottom of the screening system (1) and used for absorbing dust generated in the operation process of the screening system (2), and the control system (4) is used for controlling the rotating speed of the driving system (2);
the screening system (1) is composed of a plurality of layers of horizontally arranged nested cylindrical screen structures, the dust catching device comprises an equipment shell (301) which is arranged on the outer side of the plurality of nested cylindrical screen structures and wraps the equipment shell, the position of the equipment shell (301) is kept different and does not rotate along with the plurality of nested cylindrical screen structures, an air outlet is formed in the bottom of the equipment shell (301), the air outlet is connected with an industrial dust collector (302) through a pipeline, a dust collecting bag (303) is arranged on the lower portion of the industrial dust collector (302), and a weighing device (304) is arranged at the bottom of the dust collecting bag (303).
2. The soil and rock mixture screening device with the dust catching function as claimed in claim 1, wherein: the center of the multi-layer horizontally-arranged and mutually-nested cylindrical screen structures is an innermost screen (103), the innermost screen (103) is a horizontally-arranged cylindrical screen, two sides of the innermost screen (103) are respectively provided with a screen side baffle (102), and the center of the screen side baffle (102) at one side is provided with a ventilation feed inlet; the outer side of the innermost screen (103) is provided with a plurality of screens (101) which are connected in a layer-by-layer nested manner through screen side baffles (102) at two sides, the screens (101) connected in a layer-by-layer nested manner ensure that the screening system (1) is integrally closed, and the apertures of the innermost screen (103) and the multi-layer screens (101) arranged at the outer side of the innermost screen are gradually reduced from inside to outside.
3. The soil and rock mixture screening device with the dust catching function as claimed in claim 2, wherein: the driving system (2) comprises rotating shaft supports arranged on two sides of a plurality of mutually-nested cylindrical screen structures horizontally arranged in a multilayer mode, one group of rotating shaft supports are connected with a support through rotating shafts and supports in a rotating mode, the other group of rotating shaft supports are driving rotating shafts, the driving rotating shafts are connected with motors (204) arranged on supports on the other side through driving rods (203), the rotating shafts and the driving rotating shafts are ring supports (202) coaxially arranged, and each ring support (202) is connected with one screen side baffle (102) through a plurality of supporting rods (201).
4. The soil and rock mixture screening device with the dust catching function as claimed in claim 2, wherein: the number of the cylindrical screens (101) which are stacked layer by layer is 8, and the screen mesh diameters of the screens (101) are respectively 10, 5, 2.5, 1.25, 0.63, 0.315, 0.16 and 0.08mm from inside to outside; the distance between two adjacent screens (101) is 50 mm; the innermost screen (103) has a mesh diameter of 10mm and a radius of 100 mm.
5. The soil and rock mixture screening device with the dust catching function as claimed in claim 3, wherein: the screen side baffles (102) on two sides of each screen (101) in the plurality of nested cylindrical screen structures are in sliding connection with other screens (101) arranged on the inner side and the outer side.
6. The soil and rock mixture screening device with the dust catching function as claimed in claim 4, wherein: a sliding rail (206) allowing the motor (204) to slide is arranged between the motor (204) and the bracket arranged on the motor (204), a transmission rod (203) of the motor (204) is meshed with the circular ring brackets (202) through a gear to drive, the gear is meshed according to needs, only 2 or more circular ring brackets (202) can be meshed and driven at the same time, and different screens (101) are driven to rotate according to the position of the motor (204) on the sliding rail (206); the motor (204) circularly reciprocates on the sliding rail (206) at a constant speed as required, so that the screen (101) is sequentially driven to rotate, the torque on the transmission rod is reduced, and the service life of the transmission rod is prolonged.
7. The soil and rock mixture screening device with the dust catching function as claimed in claim 6, wherein: the control system (4) is arranged on a bracket where the motor (204) is arranged, and the control system (4) comprises a rotating speed controller (401) and a sliding rail controller (402) which are arranged on the bracket.
8. The soil and rock mixture screening device with the dust catching function as claimed in claim 6, wherein: an external gear transmission section with the length of 160mm is arranged on the transmission rod (203), 4 screens (101) can be rotated simultaneously, and the rotation speed of the screens (101) is 20 r/min.
9. The soil and rock mixture screening device with the dust catching function as claimed in claim 6, wherein: the moving distance of the motor (204) on the sliding rail (205) is 400 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111018796.XA CN113909088B (en) | 2021-09-01 | 2021-09-01 | Soil-rock mixture screening device with dust catching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111018796.XA CN113909088B (en) | 2021-09-01 | 2021-09-01 | Soil-rock mixture screening device with dust catching function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113909088A true CN113909088A (en) | 2022-01-11 |
| CN113909088B CN113909088B (en) | 2023-04-11 |
Family
ID=79233521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111018796.XA Active CN113909088B (en) | 2021-09-01 | 2021-09-01 | Soil-rock mixture screening device with dust catching function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113909088B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8510484D0 (en) * | 1985-04-25 | 1985-05-30 | Akron Machinery Uk Ltd | Grading particulate material |
| CN2695125Y (en) * | 2004-02-06 | 2005-04-27 | 上海宝钢冶金建设公司 | Multilayer coaxial rotary sieve |
| CN204842151U (en) * | 2015-08-14 | 2015-12-09 | 云南青葵生物科技有限公司 | Feed ingredient edulcoration unit |
| CN111871791A (en) * | 2020-08-17 | 2020-11-03 | 昆明理工大学 | Efficient vibration screening device for earth and stone bulk |
| CN211937759U (en) * | 2020-04-07 | 2020-11-17 | 郑州弘祥高新材料有限公司 | A a many section of thick bamboo screening plant for white corundum production and processing |
| CN213001062U (en) * | 2020-08-18 | 2021-04-20 | 天津交通职业学院 | Automatic change sleeve grain composition screening ratio appearance |
-
2021
- 2021-09-01 CN CN202111018796.XA patent/CN113909088B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8510484D0 (en) * | 1985-04-25 | 1985-05-30 | Akron Machinery Uk Ltd | Grading particulate material |
| CN2695125Y (en) * | 2004-02-06 | 2005-04-27 | 上海宝钢冶金建设公司 | Multilayer coaxial rotary sieve |
| CN204842151U (en) * | 2015-08-14 | 2015-12-09 | 云南青葵生物科技有限公司 | Feed ingredient edulcoration unit |
| CN211937759U (en) * | 2020-04-07 | 2020-11-17 | 郑州弘祥高新材料有限公司 | A a many section of thick bamboo screening plant for white corundum production and processing |
| CN111871791A (en) * | 2020-08-17 | 2020-11-03 | 昆明理工大学 | Efficient vibration screening device for earth and stone bulk |
| CN213001062U (en) * | 2020-08-18 | 2021-04-20 | 天津交通职业学院 | Automatic change sleeve grain composition screening ratio appearance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113909088B (en) | 2023-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111842123A (en) | Grit classified screening device for municipal works | |
| CN1976853A (en) | Device and method for loading a chamber with a divided solid | |
| CN108311380A (en) | A kind of chemical industry has powder classification to shake screening machine | |
| CN113909088B (en) | Soil-rock mixture screening device with dust catching function | |
| CN206838468U (en) | A kind of chemical fertilizer screening machine | |
| CN114993654A (en) | Drilling method shaft hobbing cutter rock breaking and slag discharging efficiency influence factor research test system | |
| CN114871108B (en) | Steel slag asphalt mixture preparation device | |
| CN102128764B (en) | Measuring device and testing method for powder falling performance of filter stick formed paper | |
| CN108693305A (en) | A kind of methylene oxide detecting instrument that the accuracy of detection with filtering dust function is high | |
| KR20160004425A (en) | Portable appratus for soil sizing | |
| CN212733036U (en) | Automatic dredging and blockage preventing device of high-efficiency powder concentrator | |
| WO2014194687A1 (en) | Apparatus for screening solid material in cut and fill mining | |
| CN114733751B (en) | Mechanical vibration fine screen classifier | |
| KR101856571B1 (en) | Dry weight separation apparatus using eccentric rotary motion and method thereof | |
| CN216173969U (en) | Rotary screening machine | |
| CN2149256Y (en) | Sleeve type multi-stage sieves | |
| CN205797778U (en) | Isolate the special equipment of centrifugal material screening grading technology | |
| CN215917623U (en) | A processingequipment for sodium silicate | |
| CN104707775A (en) | Drum-type convenient and fast aggregate screening device | |
| CN210730106U (en) | Multistage screening power transmission of rice | |
| CN207169873U (en) | The on-line automatic control sieve of coal pulverizer failure ball takes device | |
| CN219003685U (en) | A filter screening plant for powdered material | |
| CN112893079A (en) | Drum-type sand screening device for construction engineering construction | |
| CN114042616A (en) | Grit sieving mechanism that building engineering used | |
| CN111589694A (en) | Pre-dispersion masterbatch particle screening device without nitrosamine production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230320 Address after: 221116 Research Institute of China University of Mining and Technology, 1 University Road, Xuzhou, Jiangsu Applicant after: CHINA University OF MINING AND TECHNOLOGY Applicant after: Kunming Coal Design and Research Institute Co.,Ltd. Address before: China University of mining and technology, No.1, Daxue Road, Xuzhou City, Jiangsu Province, 221116 Applicant before: CHINA University OF MINING AND TECHNOLOGY |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |