CN112663714A - Coal mine underground water bin dredging equipment - Google Patents
Coal mine underground water bin dredging equipment Download PDFInfo
- Publication number
- CN112663714A CN112663714A CN202011533665.0A CN202011533665A CN112663714A CN 112663714 A CN112663714 A CN 112663714A CN 202011533665 A CN202011533665 A CN 202011533665A CN 112663714 A CN112663714 A CN 112663714A
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- wall
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- base
- transmission belt
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003245 coal Substances 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims 9
- 238000000034 method Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses underground coal mine sump dredging equipment, and relates to the technical field of underground sump dredging, and the underground coal mine sump dredging equipment comprises a base, wherein a water storage tank, an adjusting sleeve and a power supply are arranged at the top of the base, a separation tank is arranged at the top of the water storage tank, the bottom of the adjusting sleeve is in threaded connection with the top of the base, an adjusting sleeve rod is connected to the inner wall of the adjusting sleeve in a sliding mode, an electric hydraulic rod and a dredging device are arranged at the right end of the base, the left end of the electric hydraulic rod is in threaded connection with the right end of the base, and the electric hydraulic rods are symmetrically arranged on the left side and the right side of the. According to the invention, the electric hydraulic rod and the threaded rod are combined, so that the angle of the dredging device can be conveniently adjusted, the problem of low applicability caused by different shapes of the water bins is avoided, the separation box is arranged to separate coal mines in muddy water, and the combination of the clamping block and the elastic part is adopted, so that the vibration of the collecting box on a transmission belt can be reduced in the moving process.
Description
Technical Field
The invention relates to sump dredging equipment, relates to the technical field of underground sump dredging, and particularly relates to underground sump dredging equipment for a coal mine.
Background
The sump under the mine form is various, and the structure of sump is more complicated, and the shape difference is big, and the sump is long narrow different, and the slope differs, and the peat mixes together, has very big intensity of labour to manual cleaning, needs one kind for this reason to separate the peat to can adjust according to the structure in sump.
The following problems exist in the prior art:
1. in the prior art, when the equipment works under a mine, the equipment is limited by the space size of a construction site, so that the problem that the construction angle of the dredging equipment cannot be adjusted according to the space size in the mine is solved, and a plurality of coal mines with larger particles can be collected in the process of cleaning muddy water and cannot be treated respectively;
2. in the prior art, the influence of the gravity of muddy water is stressed in the dredging process, so that the abrasion degree between a gear and a driving belt is increased in the moving process of a transmission device;
3. because the dredging equipment works in the mine, the regulation of each device is required to be realized according to the working space, the weight of the dredging equipment is reduced as much as possible, but the existing driving device is generally provided with a plurality of motors simultaneously, the weight of the whole device is increased, the original purpose of reducing the weight cannot be achieved, the applicability of the dredging equipment for the underground water sump of the coal mine is poor, and therefore structural innovation is required to be carried out to solve the specific problem.
Disclosure of Invention
The invention provides underground coal mine sump dredging equipment, which aims to adjust the angle of a dredging device and solve the problem that the dredging equipment is limited by a working space; the other purpose is to solve the problem of coal mines with large particles in muddy water so as to achieve the effect of separating coal mines from muddy water, and the other purpose is to reduce the weight of the whole device, conveniently place dredging equipment in a mine, facilitate the reduction of labor intensity during movement and solve the problem of abrasion among partial devices.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a clear equipment of digging of colliery sump pit, includes the base, the top of base is provided with water storage box, adjusting sleeve and power, the top of water storage box is provided with the separator box, adjusting sleeve's bottom and the top threaded connection of base, adjusting sleeve's inner wall sliding connection has the adjusting collar pole, the right-hand member of base is provided with electronic hydraulic stem and clears the device of digging, the left end of electronic hydraulic stem and the right-hand member threaded connection of base, and the right-hand member symmetry setting that just electronic hydraulic stem is located the base, clear right side setting that the device of digging is located electronic hydraulic stem, adjusting sleeve's top is provided with the driving machine case.
The technical scheme of the invention is further improved as follows: the clear device of digging includes screw, drive belt and collecting box, the left end threaded connection of screw has electronic hydraulic stem, the right-hand member of screw is provided with the speed case, the left and right sides embedding of speed case is connected with axle sleeve one, the outer wall of screw is connected with the inner wall rotation of axle sleeve one, the inner wall of speed case is provided with drive gear one and drive gear two, the right-hand member of screw is through the axle sleeve one that sets up and drive gear one's left end threaded connection, and drive gear one is located the left and right sides symmetry setting of drive gear two, and drive gear one's outer wall meshes with drive gear two's outer wall mutually.
The technical scheme of the invention is further improved as follows: the left side of drive gear one is provided with axle sleeve two, the inner wall of axle sleeve two is inlayed with the outer wall of screw and is connected, the outer wall welding of axle sleeve two has drive gear three, the outer wall of drive gear three rotates and is connected with the speed transmission case, the bottom threaded connection of speed transmission case has the base, the right-hand member of speed transmission case is provided with the thick liquid pole, the outer wall of thick liquid pole cup joints with the inner wall of screw, the right-hand member swing joint of thick liquid pole has the stopper, the right-hand member overlap joint of stopper has the screw, and the center department of stopper and the axle center department threaded connection of thick liquid pole.
The technical scheme of the invention is further improved as follows: the transmission belt comprises a first transmission belt and a second transmission belt, the right end of the first transmission belt is hinged to the left end of the second transmission belt, gear belts are arranged on the outer walls of the first transmission belt and the second transmission belt, a clamping block is welded to the top of the first transmission belt, an elastic part is welded to the top of the second transmission belt, a collecting box is arranged above the transmission belt, the outer wall of the clamping block is rotatably connected with the collecting box, and the top of the elastic part is welded to the bottom of the collecting box.
The technical scheme of the invention is further improved as follows: the inner wall of the elastic part is provided with a return spring, the upper end and the lower end of the return spring are welded with the inner wall of the elastic part, the collecting box is elastically connected with the second driving belt through the arranged elastic part, and one end of the collecting box is slidably connected with a driving case.
The technical scheme of the invention is further improved as follows: the outer wall of the transmission gear III is connected with a gear belt in a meshing mode, and the shaft sleeve II is symmetrically arranged on the left side and the right side of the inner wall of the transmission case.
The technical scheme of the invention is further improved as follows: the inner wall of drive machine case is provided with inverter motor, and inverter motor's drive end rotates and is connected with drive gear, drive gear's one end rotates and is connected with the regulation loop bar, drive gear's outer wall meshing is connected with the gear area.
The technical scheme of the invention is further improved as follows: the outer wall of the adjusting sleeve is provided with a threaded rod, the inner wall of the adjusting sleeve rod is fixedly provided with a gear rack, the threaded rod penetrates through the outer wall of the adjusting sleeve, and one end of the threaded rod is meshed with the gear rack.
The technical scheme of the invention is further improved as follows: the water storage tank is characterized in that a separation layer and a rotating shaft are arranged at the bottom of the inner wall of the water storage tank, a driving motor is arranged on the right side of the water storage tank, the driving end of the driving motor is rotatably connected with the right end of the rotating shaft, and the bottom of the driving motor is in threaded connection with the top of the base.
The technical scheme of the invention is further improved as follows: the filter is fixedly mounted at the bottom of the inner wall of the separation box, the support columns are welded at the top of the water storage box, and the water storage box is fixedly connected with the separation box through the support columns.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides coal mine underground water sump dredging equipment, which is characterized in that an electric hydraulic rod and a threaded rod are combined, so that the angle of a dredging device can be conveniently adjusted, the problem that the applicability is low due to the fact that the shapes of water sumps are different is avoided, the arranged separation box can be used for separating coal mines from muddy water, the separated muddy water can flow into a water storage box, and when a certain amount of muddy water is deposited, a driving motor is started to conveniently clean the muddy water in the water storage box outwards.
2. The invention provides coal mine underground water sump dredging equipment, which is characterized in that a clamping block and an elastic piece are combined, so that the vibration of a collecting box on a transmission belt can be reduced in the moving process, the collecting box is prevented from moving on the transmission belt while being subjected to gravity, and the abrasion between a gear belt and a driving gear is reduced.
3. The invention provides coal mine underground water sump dredging equipment, which can reduce the use amount of motors and the weight of the whole device by matching the transmission case and the driving case, indirectly drive the propellers on two sides of the driving case to rotate by providing power by the driving case in the dredging process, and better dredge the water sump in the rotating process of the propellers.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the transmission case structure of the present invention;
FIG. 3 is a schematic view of the connection between the driving housing and the transmission belt structure according to the present invention;
FIG. 4 is a schematic view of the connection of the drive gear and the belt of the present invention;
FIG. 5 is a schematic view of the structural connection of the collection box and the transmission belt of the present invention;
FIG. 6 is a schematic view of the elastic member according to the present invention;
fig. 7 is a cross-sectional view of an adjustment stem arrangement of the present invention.
In the figure: 1. a base; 2. a water storage tank; 121. a first transmission belt; 122. a second transmission belt; 3. a separation tank; 4. a filter plate; 5. a separation layer; 6. a drive motor; 7. a rotating shaft; 8. a support pillar; 9. an electro-hydraulic lever; 10. clearing and digging the device; 11. a propeller; 12. a transmission belt; 121. a first transmission belt; 122. a second transmission belt; 13. a collection box; 14. an adjustment sleeve; 15. adjusting the loop bar; 16. a threaded rod; 17. a transmission case; 18. a first shaft sleeve; 19. a second shaft sleeve; 191. a third transmission gear; 20. a first transmission gear; 21. a second transmission gear; 22. a limiting block; 23. a paddle lever; 24. a drive chassis; 25. a drive gear; 26. a clamping block; 27. an elastic member; 28. a return spring; 29. a gear belt; 30. a gear rack; 31. a power source.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-7, the invention provides a coal mine underground water sump dredging device, which comprises a base 1, wherein a water storage tank 2, an adjusting sleeve 14 and a power supply 31 are arranged at the top of the base 1, a separation tank 3 is arranged at the top of the water storage tank 2, the bottom of the adjusting sleeve 14 is in threaded connection with the top of the base 1, an adjusting sleeve rod 15 is connected to the inner wall of the adjusting sleeve 14 in a sliding manner, an electric hydraulic rod 9 and a dredging device 10 are arranged at the right end of the base 1, the left end of the electric hydraulic rod 9 is in threaded connection with the right end of the base 1, the electric hydraulic rod 9 is symmetrically arranged at the left side and the right side of the base 1, the dredging device 10 is arranged at the right side of the electric hydraulic rod 9, and a driving case 24.
In this embodiment, can temporarily store collecting muddy water through the water storage box 2 that sets up, great colliery in the muddy water can be separated to separator box 3, uses through the cooperation of adjusting sleeve 14 and adjusting loop bar 15, can adjust the terrain clearance of whole device to through the flexible of electronic hydraulic stem 9, can adjust the angle between dredging device 10 and the base 1, thereby changed the angle of dredging, increased the suitability of whole device in sump in the pit.
As shown in fig. 1, in this embodiment, preferably, the inner wall bottom of water storage tank 2 is provided with separate layer 5 and pivot 7, the right side of water storage tank 2 is provided with driving motor 6, driving motor 6's drive end is rotated with the right-hand member of pivot 7 and is connected, and driving motor 6's bottom and base 1's top threaded connection, drive pivot 7 through starting driving motor 6, outwards release the muddy water of water storage tank 2 bottom, convenient clearance, the inner wall bottom fixed mounting of separator 3 has filter 4, filter 4 is convenient for carry out the separation processing to the colliery in the muddy water, reduce the waste of resource, the top welding of water storage tank 2 has support column 8, the support 8 that sets up lives 8 and is convenient for fix separator 3, and water storage tank 2 is through the support column 8 and the separator 3 fixed connection that set up.
Example 2
As shown in fig. 1 and fig. 2, on the basis of embodiment 1, the present invention provides a technical solution: the digging device 10 comprises a propeller 11, a transmission belt 12 and a collection box 13, wherein the left end of the propeller 11 is in threaded connection with an electric hydraulic rod 9, the electric hydraulic rod 9 plays a role of auxiliary support for the propeller 11, the right end of the propeller 11 is provided with a transmission box 17, the left side and the right side of the transmission box 17 are embedded and connected with a first shaft sleeve 18, the outer wall of the propeller 11 is rotatably connected with the inner wall of the first shaft sleeve 18, the inner wall of the transmission box 17 is provided with a first transmission gear 20 and a second transmission gear 21, the right end of the propeller 11 is in threaded connection with the left end of the first transmission gear 20 through the arranged first shaft sleeve 18, the first transmission gear 20 is symmetrically arranged at the left side and the right side of the second transmission gear 21, the outer wall of the first transmission gear 20 is meshed with the outer wall of the second transmission gear 21, the left side of the first transmission gear 20, the outer wall welding of axle sleeve two 19 has drive gear three 191, the outer wall meshing of drive gear three 191 is connected with gear belt 29, axle sleeve two 19 is located the inner wall left and right sides symmetry setting of speed transmission case 17, the outer wall rotation of drive gear three 191 is connected with speed transmission case 17, the bottom threaded connection of speed transmission case 17 has base 1, the right-hand member of speed transmission case 17 is provided with thick liquid pole 23, the outer wall of thick liquid pole 23 cup joints with the inner wall of screw 11, the screw 11 that sets up can promote the muddy water of its bottom to the bottom of collecting box 13 at the pivoted in-process, be convenient for more muddy water are collected to collecting box 13, the right-hand member swing joint of thick liquid pole 23 has stopper 22, the right-hand member overlap joint of stopper 22 has screw 11, and the axle center department threaded connection of stopper.
Example 3
As shown in fig. 1, 5 and 6, the present invention provides a technical solution based on embodiment 1 and embodiment 2: preferably, the transmission belt 12 comprises a first transmission belt 121 and a second transmission belt 122, the right end of the first transmission belt 121 is hinged to the left end of the second transmission belt 122, gear belts 29 are arranged on the outer walls of the first transmission belt 121 and the second transmission belt 122, a clamping block 26 is welded on the top of the first transmission belt 121, an elastic member 27 is welded on the top of the second transmission belt 122, a collection box 13 is arranged above the transmission belt 12, the outer wall of the clamping block 26 is rotatably connected with the collection box 13, the top of the elastic member 27 is welded with the bottom of the collection box 13, a return spring 28 is arranged on the inner wall of the elastic member 27, the upper end and the lower end of the return spring 28 are welded with the inner wall of the elastic member 27, the collection box 13 is elastically connected with the second transmission belt 122 through the arranged elastic member 27, one end of the collection box 13 is slidably connected with a driving cabinet 24, the need for the collecting bin 13 to move on the drive belt 12 while being subjected to gravity is avoided, reducing wear between the toothed belt 29 and the drive gear 25.
Example 4
As shown in fig. 3 and 7, the present invention provides a technical solution based on embodiment 1, embodiment 2, and embodiment 3: the inner wall of the driving case 24 is provided with a variable frequency motor, the driving end of the variable frequency motor is rotatably connected with a driving gear 25, the diameter of the outer wall of the driving gear 25 is equal to that of the outer wall of the shaft sleeve II 19, a transmission gear III 191 arranged on the shaft sleeve II 19 is meshed with a gear belt 29, so that the shaft sleeve 19 is indirectly driven to rotate through the rotation of the variable frequency motor, the rotation of the propellers 11 on the two sides of the base 1 is realized, one end of the driving gear 25 is rotatably connected with an adjusting sleeve rod 15, the outer wall of the driving gear 25 is meshed with the gear belt 29, the outer wall of the adjusting sleeve 14 is provided with a threaded rod 16, the inner wall of the adjusting sleeve rod 15 is fixedly provided with the gear strip 30, the threaded rod 16 penetrates through the outer wall of the adjusting sleeve 14, one end of the threaded rod 16 is meshed with the gear strip, the weight of the whole device is reduced.
The working principle of the underground coal mine underground water sump dredging device is as follows:
as shown in figures 1-7, the invention is through putting the whole apparatus to the place needing to be dug, adjust the construction angle of the digging apparatus 10 according to the construction place of the sump, through starting the electronic hydraulic stem 9, there is power 31 to provide power, promote the distance between base 1 and the propeller 11, and rotate the threaded spindle 16 to drive its bottom and engage with the rack 20 to rotate, and then regulate the ground clearance of the whole apparatus, drive the rotation of the drive gear 25 of its both sides through starting the driving chassis 24, and then make the rotation between drive gear 25 and the toothed belt 29, and then drive the rotation of the drive belt 12, make the collecting box 13 reciprocate with the drive belt 12, realize the process of digging in the course of moving, and during this, because the rotation of the drive belt 12 will drive the drive gear three 191, because the drive gear three 191 links with the propeller 11, the propellers 11 on the two sides of the base 1 are indirectly driven to rotate, the muddy water is pushed to move towards the middle part along with the rotation of the propellers 11, the collection box 13 can collect more muddy water, and the collection box 13 pours the collected muddy water into the separation box 3 along with the movement of the collection box 13 on the transmission belt 12, so that the muddy water is separated.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (10)
1. The utility model provides a clear equipment of digging of colliery sump in pit, includes base (1), its characterized in that: the top of base (1) is provided with water storage box (2), adjusting sleeve (14) and power (31), the top of water storage box (2) is provided with separator box (3), the bottom of adjusting sleeve (14) and the top threaded connection of base (1), the inner wall sliding connection of adjusting sleeve (14) has regulation loop bar (15), the right-hand member of base (1) is provided with electronic hydraulic stem (9) and digs device (10), the left end of electronic hydraulic stem (9) and the right-hand member threaded connection of base (1), and the left and right sides symmetry that electronic hydraulic stem (9) are located base (1) sets up, the right side that digs device (10) are located electronic hydraulic stem (9) sets up, the top of adjusting sleeve (14) is provided with drive machine case (24).
2. The underground coal mine pit excavation equipment according to claim 1, wherein: the dredging device (10) comprises a propeller (11), a transmission belt (12) and a collecting box (13), the left end of the propeller (11) is in threaded connection with an electric hydraulic rod (9), the right end of the propeller (11) is provided with a speed transmission box (17), the left side and the right side of the transmission case (17) are embedded and connected with a first shaft sleeve (18), the outer wall of the propeller (11) is rotationally connected with the inner wall of the first shaft sleeve (18), the inner wall of the transmission case (17) is provided with a first transmission gear (20) and a second transmission gear (21), the right end of the propeller (11) is in threaded connection with the left end of a first transmission gear (20) through a first shaft sleeve (18), the first transmission gear (20) is symmetrically arranged at the left side and the right side of a second transmission gear (21), and the outer wall of the first transmission gear (20) is meshed with the outer wall of the second transmission gear (21).
3. The underground coal mine pit excavation equipment as claimed in claim 2, wherein: the left side of drive gear one (20) is provided with axle sleeve two (19), the inner wall of axle sleeve two (19) is connected with the outer wall of screw (11) in an embedded manner, the outer wall welding of axle sleeve two (19) has drive gear three (191), the outer wall rotation of drive gear three (191) is connected with speed transmission case (17), the bottom threaded connection of speed transmission case (17) has base (1), the right-hand member of speed transmission case (17) is provided with thick liquid pole (23), the outer wall of thick liquid pole (23) cup joints with the inner wall of screw (11), the right-hand member swing joint of thick liquid pole (23) has stopper (22), the right-hand member overlap joint of stopper (22) has screw (11), and the center department of stopper (22) locates threaded connection with the axle center department of thick liquid pole (23).
4. The underground coal mine pit excavation equipment as claimed in claim 2, wherein: the transmission belt (12) comprises a first transmission belt (121) and a second transmission belt (122), the right end of the first transmission belt (121) is hinged to the left end of the second transmission belt (122), gear belts (29) are arranged on the outer walls of the first transmission belt (121) and the second transmission belt (122), a clamping block (26) is welded to the top of the first transmission belt (121), an elastic part (27) is welded to the top of the second transmission belt (122), a collection box (13) is arranged above the transmission belt (12), the outer wall of the clamping block (26) is rotatably connected with the collection box (13), and the top of the elastic part (27) is welded to the bottom of the collection box (13).
5. The underground coal mine pit excavation equipment according to claim 4, wherein: the inner wall of the elastic part (27) is provided with a return spring (28), the upper end and the lower end of the return spring (28) are welded with the inner wall of the elastic part (27), the collection box (13) is elastically connected with a second transmission belt (122) through the arranged elastic part (27), and one end of the collection box (13) is slidably connected with a driving case (24).
6. The underground coal mine pit excavation equipment according to claim 3, wherein: the outer wall of the transmission gear III (191) is connected with a gear belt (29) in a meshing mode, and the shaft sleeve II (19) is located on the left side and the right side of the inner wall of the transmission case (17) and is symmetrically arranged.
7. The underground coal mine pit excavation equipment according to claim 1, wherein: the inner wall of drive machine case (24) is provided with inverter motor, and inverter motor's drive end rotates and is connected with drive gear (25), the one end of drive gear (25) rotates and is connected with regulation loop bar (15), the outer wall meshing of drive gear (25) is connected with gear belt (29).
8. The underground coal mine pit excavation equipment according to claim 1, wherein: the outer wall of adjusting sleeve (14) is provided with threaded rod (16), the inner wall fixed mounting of adjusting loop bar (15) has rack (30), threaded rod (16) run through in the outer wall of adjusting sleeve (14), and the one end meshing of threaded rod (16) is connected with rack (30).
9. The underground coal mine pit excavation equipment according to claim 1, wherein: the water storage tank is characterized in that a separation layer (5) and a rotating shaft (7) are arranged at the bottom of the inner wall of the water storage tank (2), a driving motor (6) is arranged on the right side of the water storage tank (2), the driving end of the driving motor (6) is rotatably connected with the right end of the rotating shaft (7), and the bottom of the driving motor (6) is in threaded connection with the top of the base (1).
10. The underground coal mine pit excavation equipment according to claim 1, wherein: the filter plate (4) is fixedly mounted at the bottom of the inner wall of the separation box (3), a support column (8) is welded at the top of the water storage box (2), and the water storage box (2) is fixedly connected with the separation box (3) through the support column (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533665.0A CN112663714A (en) | 2020-12-23 | 2020-12-23 | Coal mine underground water bin dredging equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533665.0A CN112663714A (en) | 2020-12-23 | 2020-12-23 | Coal mine underground water bin dredging equipment |
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| Publication Number | Publication Date |
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| CN112663714A true CN112663714A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011533665.0A Pending CN112663714A (en) | 2020-12-23 | 2020-12-23 | Coal mine underground water bin dredging equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2737840Y (en) * | 2004-10-29 | 2005-11-02 | 单衍刚 | Water sump coal mud dredger |
| CN201045195Y (en) * | 2007-04-30 | 2008-04-09 | 张德永 | Hydraulic spiral tee mine sump dredging device |
| WO2018103348A1 (en) * | 2016-12-08 | 2018-06-14 | 王睿琦 | Worm drive-based constant-flow slit type inlet and outlet port |
| CN111255003A (en) * | 2020-01-20 | 2020-06-09 | 黑龙江工业学院 | Coal mine underground water bin dredging equipment |
| CN211774070U (en) * | 2020-03-31 | 2020-10-27 | 罗华超 | Hydraulic engineering is with high-efficient desilting device |
-
2020
- 2020-12-23 CN CN202011533665.0A patent/CN112663714A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2737840Y (en) * | 2004-10-29 | 2005-11-02 | 单衍刚 | Water sump coal mud dredger |
| CN201045195Y (en) * | 2007-04-30 | 2008-04-09 | 张德永 | Hydraulic spiral tee mine sump dredging device |
| WO2018103348A1 (en) * | 2016-12-08 | 2018-06-14 | 王睿琦 | Worm drive-based constant-flow slit type inlet and outlet port |
| CN111255003A (en) * | 2020-01-20 | 2020-06-09 | 黑龙江工业学院 | Coal mine underground water bin dredging equipment |
| CN211774070U (en) * | 2020-03-31 | 2020-10-27 | 罗华超 | Hydraulic engineering is with high-efficient desilting device |
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Effective date of registration: 20230627 Address after: 274700 middle section of Dongxi Road, economic development zone, yuncheng county, Heze City, Shandong Province Applicant after: Shandong energy group Luxi Mining Co.,Ltd. Address before: 276017 No. 69 Commercial Street, Luozhuang District, Linyi City, Shandong Province Applicant before: LINYI MINING GROUP Co.,Ltd. |
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Application publication date: 20210416 |