CN118148702A - Goaf filling treatment equipment - Google Patents
Goaf filling treatment equipment Download PDFInfo
- Publication number
- CN118148702A CN118148702A CN202410582984.2A CN202410582984A CN118148702A CN 118148702 A CN118148702 A CN 118148702A CN 202410582984 A CN202410582984 A CN 202410582984A CN 118148702 A CN118148702 A CN 118148702A
- Authority
- CN
- China
- Prior art keywords
- plate
- material blocking
- pipe
- bin
- conveying
- 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
- 238000007599 discharging Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 37
- 230000000903 blocking effect Effects 0.000 claims description 35
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 description 19
- 239000004575 stone Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000005429 filling process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/14—Pulverising loaded or unloaded materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Screw Conveyors (AREA)
Abstract
The invention discloses goaf filling treatment equipment, which comprises a spiral conveying pipe, a connecting pipe and a discharging bin, and belongs to the technical field of goaf filling.
Description
Technical Field
The invention belongs to the technical field of goaf filling, and particularly relates to goaf filling treatment equipment.
Background
Goaf filling refers to filling a hollow area formed after ore mining, and mainly comprises methods of filling earth, filling stones and the like, wherein the filling can stabilize the earth surface, reduce the risk of subsidence of the earth surface, protect groundwater resources, and can be used as construction land, such as road construction, greening, building construction and the like.
When filling the cavity area by a stone filling or soil filling method, stone blocks are required to be conveyed to the cavity area by a transport vehicle and then are filled, the operation steps are more complicated, the conventional filling and conveying equipment is difficult to realize interval conveying, blockage is easy to occur in the equipment and the cavity area, dust and crushed stone generated in the filling process can enter the equipment, the equipment is easy to be blocked, the service life of the equipment is influenced, and therefore goaf filling treatment equipment is required to be provided.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides goaf filling treatment equipment, which aims to solve the technical problems that dust and crushed stone generated in the existing goaf filling process easily enter the equipment, the inside of the equipment is easily blocked, the existing filling equipment is difficult to realize interval conveying and the like.
The technical scheme adopted by the invention is as follows: the invention provides goaf filling treatment equipment which comprises a spiral conveying pipe, a connecting pipe and a lower bin, wherein the lower bin is arranged under the spiral conveying pipe, the lower bin is communicated with the spiral conveying pipe through the connecting pipe, two groups of material blocking rotating shafts are rotatably connected in the lower bin, material blocking plates are arranged on the material blocking rotating shafts, a magnetic strip plate is arranged at the end part of one side of the material blocking plate, a deformation bag is arranged at the end part of the material blocking plate at the other side of the material blocking plate, follow-up magnetorheological fluid is arranged in the deformation bag, a first trapezoid plate and a second trapezoid plate are respectively arranged on the inner walls of two sides of the lower bin, the first trapezoid plate is positioned on one side of the material blocking plate with the magnetic strip plate at the end part, and the second trapezoid plate is positioned on one side of the material blocking plate with the deformation bag at the end part.
As a preferable technical scheme of the invention, the first trapezoid plate is filled with fixed magnetorheological fluid, the second trapezoid plate is internally provided with a built-in magnetic stripe, and the first trapezoid plate is made of rubber materials.
As a preferable technical scheme of the invention, the baffle plate is arranged around the baffle rotating shaft.
As a preferable technical scheme of the invention, the baffle plates on the baffle rotating shaft are distributed at equal intervals.
As a preferable technical scheme of the invention, the discharging bin is divided into three sections, the upper section and the lower section of the discharging bin are funnel-shaped, the middle section of the discharging bin is a cuboid with a cavity, and the bottom end of the discharging bin is provided with a discharging pipe.
As a preferable technical scheme of the invention, the outer wall of the middle section of the discharging bin is provided with a material blocking motor, and the material blocking motor is rotationally connected with a material blocking rotating shaft.
As a preferable technical scheme of the invention, the outer wall of the upper section of the lower bin is provided with the dredging fan, and the output end of the dredging fan is communicated with the inner space of the lower bin.
As a preferable technical scheme of the invention, a conveying shaft is rotationally connected to the spiral conveying pipe, spiral conveying blades are arranged on the conveying shaft, a conveying motor is arranged on the outer wall of the end part of the spiral conveying pipe, and the conveying motor is rotationally connected with the conveying shaft.
As a preferable technical scheme of the invention, a blanking hopper is arranged right above the spiral conveying pipe, the blanking hopper is connected with the spiral conveying pipe through a blanking pipe, a blade is arranged at the joint of the blanking hopper and the blanking pipe, and the blade is positioned on the inner walls of the blanking hopper and the blanking pipe.
As a preferable technical scheme of the invention, the discharging hopper and the discharging bin are respectively positioned at two ends of the spiral conveying pipe.
The goaf filling treatment equipment provided by the invention has the beneficial effects that:
(1) The fillers such as soil blocks and stones can be scattered under the impact when contacting the blades in the discharging hopper, so that the volume of a single filler is reduced, meanwhile, the direct contact with the discharging hopper is avoided, the contact area between the filler and the inner wall of the discharging hopper is reduced, and excessive fillers are prevented from remaining on the inner wall of the discharging hopper.
(2) The filler above can be conveyed to the lower part when the striker plate rotates, and the upward-diffused dust or splashed broken stone can be blocked.
(3) After filling, the striker plate is in a horizontal state, follow-up magnetorheological fluid in the deformation bag on one side is attracted by the built-in magnetic stripe and then is tightly attached to the second trapezoid plate, the deformation bag on the other side is tightly attached to the magnetic strip plate at the end part of the striker plate, and the fixed magnetorheological fluid in the first trapezoid plate is attracted by the magnetic strip plate at the end part of the striker plate, so that the first trapezoid plate is adsorbed on the surface of the magnetic strip plate, a closed space is formed in the discharging bin, and upward-diffused dust is prevented from entering the equipment.
(4) The discharging bin can form a closed space, so that the invention is suitable for intermittent feeding.
Drawings
FIG. 1 is a schematic diagram of the overall structure of goaf filling treatment equipment according to the present invention;
FIG. 2 is a top view of a goaf filling management apparatus according to the present invention;
FIG. 3 is a cross-sectional view of a goaf filling governance device in accordance with the present invention;
FIG. 4 is a cross-sectional view of a blanking bin according to the present invention;
FIG. 5 is a schematic view of the internal structure of the discharging bin according to the present invention;
FIG. 6 is an enlarged partial view of portion A of FIG. 4;
FIG. 7 is an enlarged partial view of portion B of FIG. 4;
fig. 8 is a partial enlarged view of a portion C of fig. 4.
Wherein, 1, a spiral conveying pipe, 101, a conveying shaft, 102, a spiral conveying blade, 103, a conveying motor, 2, a connecting pipe, 3, a discharging bin, 301, a dredging fan, 302, a material blocking rotating shaft, 303, a material blocking plate, 304, a material blocking motor, 305 and a magnetic strip, 306, deformation bags, 307, follow-up magnetorheological fluid, 308, a first trapezoid plate, 309, fixed magnetorheological fluid, 310, a second trapezoid plate, 311, built-in magnetic stripes, 4, a blanking hopper, 401, blades, 5, a blanking pipe, 6 and a discharging pipe.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-8, the invention provides goaf filling treatment equipment, which comprises a spiral conveying pipe 1, a connecting pipe 2 and a lower bin 3, wherein the lower bin 3 is arranged under the spiral conveying pipe 1, the lower bin 3 is communicated with the spiral conveying pipe 1 through the connecting pipe 2, two groups of material blocking rotating shafts 302 are rotationally connected to the lower bin 3, a material blocking plate 303 is arranged on the material blocking rotating shafts 302, a magnetic plate 305 is arranged at the end part of one side of the material blocking plate 303, a deformation bag 306 is arranged at the end part of the other side of the material blocking plate 303, a follow-up magnetorheological fluid 307 is arranged in the deformation bag 306, a first trapezoidal plate 308 and a second trapezoidal plate 310 are respectively arranged on the inner walls of two sides of the lower bin 3, the first trapezoidal plate 308 is positioned at one side of the material blocking plate 303 with the magnetic plate 305 at the end part, and the second trapezoidal plate 310 is positioned at one side of the material blocking plate 303 with the deformation bag 306 at the end part.
As shown in fig. 6 and 7, the first trapezoid board 308 is filled with a fixed magnetorheological fluid 309, the second trapezoid board 310 is internally provided with a built-in magnetic stripe 311, and the first trapezoid board 308 is made of a rubber material.
As shown in fig. 4 and 5, the baffle 303 is disposed around the baffle shaft 302.
As shown in fig. 4 and 5, the baffle plates 303 on the baffle shaft 302 are distributed at equal intervals.
As shown in fig. 4 and 5, the lower bin 3 is divided into three sections, the upper section and the lower section of the lower bin 3 are funnel-shaped, the middle section of the lower bin 3 is a cuboid with a cavity, and the bottom end of the lower bin 3 is provided with a discharging pipe 6.
As shown in fig. 1 and 4, a material blocking motor 304 is arranged on the outer wall of the middle section of the lower bin 3, and the material blocking motor 304 is rotatably connected with a material blocking rotating shaft 302.
As shown in fig. 4, a dredging fan 301 is installed on the outer wall of the upper section of the lower bin 3, and the output end of the dredging fan 301 is communicated with the inner space of the lower bin 3.
As shown in fig. 3, a conveying shaft 101 is rotatably connected to the screw conveying pipe 1, a screw conveying blade 102 is provided on the conveying shaft 101, a conveying motor 103 is mounted on the outer wall of the end portion of the screw conveying pipe 1, and the conveying motor 103 is rotatably connected to the conveying shaft 101.
As shown in fig. 2 and 3, a blanking hopper 4 is arranged right above the spiral conveying pipe 1, the blanking hopper 4 is connected with the spiral conveying pipe 1 through a blanking pipe 5, a blade 401 is arranged at the joint of the blanking hopper 4 and the blanking pipe 5, and the blade 401 is positioned on the inner walls of the blanking hopper 4 and the blanking pipe 5.
As shown in fig. 1 to 3, the discharging hopper 4 and the discharging bin 3 are respectively positioned at both ends of the screw conveyor pipe 1.
When the device is particularly used, the device is moved to a hollow area of a goaf, the spiral conveying pipe 1 is fixed on the ground through an external support, the filler is put into the blanking hopper 4, the blade 401 on the inner wall of the blanking hopper 4 can avoid the filler from directly contacting with the blanking hopper 4, the contact area between the filler and the inner wall of the blanking hopper 4 is reduced, excessive filler is prevented from remaining on the inner wall of the blanking hopper 4, meanwhile, when the fragile filler contacts the blade 401 in the blanking hopper 4, the crack can occur under impact, the volume of the filler is reduced, after the filler enters the spiral conveying pipe 1, the conveying motor 103 is started, the conveying motor 103 drives the conveying shaft 101 to rotate, the spiral conveying blade 102 on the conveying shaft 101 forwards conveys the filler, when the filler moves to the connecting pipe 2, the filler enters the blanking hopper 3 through the connecting pipe 2, the blocking motor 304 is started at the moment, the baffle plate 303 on the baffle rotating shaft 302 is driven to rotate, the upper filler is conveyed to the lower part by the baffle plate 303 on the baffle rotating shaft 302, so that the filler can quickly enter the hollow area of the goaf, meanwhile, the baffle plate 303 can also block up upwards-diffused dust or splashed broken stone, the filler occupies most space of the lower bin 3 and the spiral conveying pipe 1, the dust can be effectively prevented from diffusing again, any two groups of baffle plates 303 on two sides are in a horizontal state after the filler is finished, the follow-up magnetorheological fluid 307 in the deformation bag 306 on one side is tightly attached to the second trapezoidal plate 310 after being attracted by the built-in magnetic strips 311, the deformation bag 306 on the other side is tightly attached to the magnetic strips 305 on the end part of the baffle plate 303, the fixed magnetorheological fluid 309 in the first trapezoidal plate 308 is attracted by the magnetic strips 305 on the end part of the baffle plate 303, the first trapezoid board 308 is also adsorbed on the surface of the magnetic strip board 305, so that a closed space is formed in the lower bin 3, dust diffused upwards is prevented from entering the equipment, and the closed space can be formed in the lower bin 3, so that the invention is suitable for intermittent feeding, the whole working process of the invention is just the next time, and the step is repeated.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (8)
1. The utility model provides a goaf fills treatment facility, includes screw conveyer pipe (1), connecting pipe (2) and lower feed bin (3), under screw conveyer pipe (1) is located in feed bin (3), communicate through connecting pipe (2) between feed bin (3) and screw conveyer pipe (1), its characterized in that down: the utility model discloses a feeding hopper, a feeding hopper (3) is characterized in that two groups of material blocking rotating shafts (302) are rotationally connected, a material blocking plate (303) is arranged on each material blocking rotating shaft (302), a magnetic strip plate (305) is arranged at one end of each material blocking plate (303), a deformation bag (306) is arranged at the other end of each material blocking plate (303), follow-up magnetorheological fluid (307) is arranged in each deformation bag (306), a first trapezoid plate (308) and a second trapezoid plate (310) are respectively arranged on the inner walls of two sides of the feeding hopper (3), the first trapezoid plates (308) are arranged at one side of each material blocking plate (303) with a magnetic strip plate (305) at the end, the second trapezoid plates (310) are arranged at one side of each material blocking plate (303) with a deformation bag (306) at the end, a built-in magnetic strip (311) is filled in each first trapezoid plate (308), each first trapezoid plate (308) is made of rubber materials, a feeding hopper (1) is provided with a feeding hopper (4) and a feeding hopper (5) is connected with the feeding hopper (4) in a feeding hopper (5), the blade (401) is positioned on the inner walls of the blanking hopper (4) and the blanking pipe (5).
2. The goaf filling management apparatus as recited in claim 1, wherein: the baffle plate (303) is arranged around the baffle rotating shaft (302).
3. A goaf filling management apparatus as claimed in claim 2, wherein: the baffle plates (303) on the baffle rotating shaft (302) are distributed at equal intervals.
4. A goaf filling management apparatus as claimed in claim 3, wherein: the discharging bin (3) is divided into three sections, the upper section and the lower section of the discharging bin (3) are funnel-shaped, the middle section of the discharging bin (3) is a cuboid with a cavity, and a discharging pipe (6) is arranged at the bottom end of the lower section of the discharging bin (3).
5. The goaf filling management apparatus as claimed in claim 4, wherein: the outer wall of the middle section of the discharging bin (3) is provided with a material blocking motor (304), and the material blocking motor (304) is rotationally connected with a material blocking rotating shaft (302).
6. The goaf filling management apparatus as recited in claim 5, wherein: and a dredging fan (301) is arranged on the outer wall of the upper section of the lower bin (3), and the output end of the dredging fan (301) is communicated with the inner space of the lower bin (3).
7. The goaf filling management apparatus as recited in claim 6, wherein: the conveying device is characterized in that the conveying shaft (101) is rotationally connected to the spiral conveying pipe (1), spiral conveying blades (102) are arranged on the conveying shaft (101), a conveying motor (103) is mounted on the outer wall of the end portion of the spiral conveying pipe (1), and the conveying motor (103) is rotationally connected with the conveying shaft (101).
8. The goaf filling management apparatus as recited in claim 7, wherein: the discharging hopper (4) and the discharging bin (3) are respectively positioned at two ends of the spiral conveying pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410582984.2A CN118148702B (en) | 2024-05-11 | 2024-05-11 | Goaf filling treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410582984.2A CN118148702B (en) | 2024-05-11 | 2024-05-11 | Goaf filling treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118148702A true CN118148702A (en) | 2024-06-07 |
| CN118148702B CN118148702B (en) | 2024-07-19 |
Family
ID=91299189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410582984.2A Active CN118148702B (en) | 2024-05-11 | 2024-05-11 | Goaf filling treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118148702B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729962A (en) * | 1950-04-12 | 1956-01-10 | William E Cary Ltd | Liquid circulating apparatus |
| RU8755U1 (en) * | 1998-04-06 | 1998-12-16 | Открытое акционерное общество "ГАЗ" | STAND FOR CENTERING UPPER SUPPORT MAGNETS OF A HIGH-TURNING VERTICAL ROTOR |
| CN101072963A (en) * | 2004-09-21 | 2007-11-14 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| CN204892069U (en) * | 2015-06-29 | 2015-12-23 | 宁波正大农业有限公司 | Feed processing is with high -efficient environmental protection rubbing crusher |
| CN206911527U (en) * | 2017-03-20 | 2018-01-23 | 胡似洋 | A kind of ore pulverizer |
| CN109759492A (en) * | 2019-03-04 | 2019-05-17 | 燕山大学 | High pressure thermal forming device and method in the magnesium alloy pipe of magnetorheological fluid Discrete control |
| CN110626469A (en) * | 2019-10-31 | 2019-12-31 | 山东交通职业学院 | GPS module and memory-carried floating navigation sealed cabin |
| CN210438092U (en) * | 2019-09-03 | 2020-05-01 | 一澄环境科技(武汉)有限公司 | Insoluble powder water purifying agent pipe chain conveying automatic feeding device |
| CN211134124U (en) * | 2019-11-28 | 2020-07-31 | 马涛 | Waste treatment equipment for building site |
| CN111775337A (en) * | 2020-07-29 | 2020-10-16 | 中钢集团马鞍山矿山研究总院股份有限公司 | Combined type dry material hauling accurate conveying and filling station suitable for mine filling system |
| CN114109491A (en) * | 2021-11-30 | 2022-03-01 | 山西工程技术学院 | Goaf mixed filling method and device for selecting reserved roadway |
| CN218796191U (en) * | 2022-11-28 | 2023-04-07 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine crusher for coal mining |
| CN117514327A (en) * | 2023-12-02 | 2024-02-06 | 中煤湖北地质勘察基础工程有限公司 | Goaf filling treatment equipment |
-
2024
- 2024-05-11 CN CN202410582984.2A patent/CN118148702B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729962A (en) * | 1950-04-12 | 1956-01-10 | William E Cary Ltd | Liquid circulating apparatus |
| RU8755U1 (en) * | 1998-04-06 | 1998-12-16 | Открытое акционерное общество "ГАЗ" | STAND FOR CENTERING UPPER SUPPORT MAGNETS OF A HIGH-TURNING VERTICAL ROTOR |
| CN101072963A (en) * | 2004-09-21 | 2007-11-14 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| CN204892069U (en) * | 2015-06-29 | 2015-12-23 | 宁波正大农业有限公司 | Feed processing is with high -efficient environmental protection rubbing crusher |
| CN206911527U (en) * | 2017-03-20 | 2018-01-23 | 胡似洋 | A kind of ore pulverizer |
| CN109759492A (en) * | 2019-03-04 | 2019-05-17 | 燕山大学 | High pressure thermal forming device and method in the magnesium alloy pipe of magnetorheological fluid Discrete control |
| CN210438092U (en) * | 2019-09-03 | 2020-05-01 | 一澄环境科技(武汉)有限公司 | Insoluble powder water purifying agent pipe chain conveying automatic feeding device |
| CN110626469A (en) * | 2019-10-31 | 2019-12-31 | 山东交通职业学院 | GPS module and memory-carried floating navigation sealed cabin |
| CN211134124U (en) * | 2019-11-28 | 2020-07-31 | 马涛 | Waste treatment equipment for building site |
| CN111775337A (en) * | 2020-07-29 | 2020-10-16 | 中钢集团马鞍山矿山研究总院股份有限公司 | Combined type dry material hauling accurate conveying and filling station suitable for mine filling system |
| CN114109491A (en) * | 2021-11-30 | 2022-03-01 | 山西工程技术学院 | Goaf mixed filling method and device for selecting reserved roadway |
| CN218796191U (en) * | 2022-11-28 | 2023-04-07 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine crusher for coal mining |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN118148702B (en) | 2024-07-19 |
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