CN116688601A - Colliery is water filter equipment in pit - Google Patents
Colliery is water filter equipment in pit Download PDFInfo
- Publication number
- CN116688601A CN116688601A CN202310990126.7A CN202310990126A CN116688601A CN 116688601 A CN116688601 A CN 116688601A CN 202310990126 A CN202310990126 A CN 202310990126A CN 116688601 A CN116688601 A CN 116688601A
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- Prior art keywords
- box
- screw thread
- water
- rose box
- filtering
- 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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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 63
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 12
- 241000220317 Rosa Species 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000010405 clearance mechanism Effects 0.000 claims description 6
- 239000010865 sewage Substances 0.000 abstract description 21
- 230000002265 prevention Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the field of mine sewage filtration, and discloses a coal mine underground water filtering device, which comprises a filtering box, a garbage collection box, a pressing mechanism, a pressure driving mechanism, a filtering net and a cleaning mechanism, wherein the filtering net is fixed in the filtering box, the garbage collection box is arranged in the filtering box at the lower left part of the filtering net, the garbage collection box is slidably arranged in the filtering box, the cleaning mechanism for cleaning the filtering net is arranged in the filtering box, the pressure driving mechanism for driving the cleaning mechanism to rotate is arranged on the filtering box, and the pressure driving mechanism comprises: the invention has the advantages of convenient sewage filtration, convenient garbage cleaning in sewage and blockage prevention.
Description
Technical Field
The invention relates to the technical field of mine sewage filtration, in particular to a coal mine underground water filtration device.
Background
When mining is carried out in a mine, more water flow is needed, more impurities are contained in the water flow after the water flow is used, water resources under the mine are relatively tense, sewage is required to be filtered and recycled, the working environment under the mine is relatively poor, dust is more, and attention is required to be paid to explosion protection when electric appliances such as motors are used, so that the use of the motors is reduced during filtration.
The existing mine filtering device is easy to accumulate garbage on the filter screen inside the mine filtering device when the mine filtering device is used, the filter screen is easy to block after a long time, the filter screen is required to be manually detached for cleaning, and the mine filtering device is inconvenient to clean, convenient to filter sewage, convenient to clean garbage in sewage and capable of preventing the blocking of the mine underground water filtering device, so that the defects in the current practical application are overcome, and the current requirements are met.
Disclosure of Invention
The invention aims to provide a coal mine underground water filtering device which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a colliery is water filter equipment in pit, includes rose box, refuse collection box, hold-down mechanism, pressure actuating mechanism, filter screen and clearance mechanism, the rose box internal fixation has the filter screen, refuse collection box is installed to the lower left side of filter screen in the rose box, refuse collection box slidable mounting is in the rose box, install the clearance mechanism that is used for clearing up the filter screen in the rose box, install on the rose box and be used for driving clearance mechanism pivoted pressure actuating mechanism, pressure actuating mechanism includes: the high-pressure pump comprises a transition water tank, a high-pressure pump, a water suction pipe, a spray pipe, a transmission shaft, blades and a first bevel gear, wherein the transition water tank and the high-pressure pump are both fixed at the top of the filter tank, the transmission shaft inserted into the filter tank is rotationally connected to the transition water tank, the first bevel gear is installed at the bottom of the transmission shaft, a plurality of blades are fixed at the upper end of the transmission shaft, the water suction pipe inserted into the filter tank is connected to the front side of the high-pressure pump, the spray pipe inserted into the transition water tank is connected to the left side of the high-pressure pump, and the spray pipe points to the blades.
Preferably: the front end of the garbage collection box is fixedly provided with a sealing baffle plate, a handle is arranged on the sealing baffle plate, and a pressing mechanism for pressing the sealing baffle plate is arranged on the outer side of the filter box.
Preferably: the hold-down mechanism includes: the filter box comprises a rotating rod, a first thread, a second thread, a first thread sleeve, a second thread sleeve, a compression bar and a limiting rod, wherein the rotating rod is rotationally connected to the outer side of the filter box, the first thread is arranged on the left half section of the rotating rod, the first thread sleeve matched with the first thread is arranged on the outer side of the first thread, the second thread is arranged on the right half section of the rotating rod, the second thread sleeve matched with the second thread is arranged on the outer side of the second thread, the limiting rod inserted into the filter box is arranged on the first thread sleeve and the second thread sleeve, the rotation directions of the first thread and the second thread are opposite, and the compression bar is fixed on the lower sides of the first thread sleeve and the second thread sleeve.
Preferably: the limiting rod is in sliding connection with the filter box, and a limiting chute for limiting rod movement is arranged on the filter box.
Preferably: a toggle rod is arranged at the right end of the rotating rod.
Preferably: the bottom of the transition water tank is provided with a return pipe inserted into the filter tank, and the return pipe is provided with a one-way valve.
Preferably: the cleaning mechanism includes: the filter comprises a vertical plate, a rotating shaft, a second bevel gear and scraping plates, wherein the vertical plate is fixed in the filter box, the vertical plate is positioned on the right side of the filter screen, the rotating shaft is connected to the vertical plate in a rotating mode, the second bevel gear is arranged at the right end of the rotating shaft, and a plurality of scraping plates are arranged at the left end of the rotating shaft.
Preferably: the first bevel gear is in running fit with the second bevel gear.
Preferably: the rotation axis runs through the filter screen, the scraper blade is laminated mutually with the filter screen.
Preferably: the left side of rose box is installed inlet channel, the drain pipe is installed on the right side of rose box.
The beneficial effects of the invention are as follows: this colliery is water filter equipment in pit, when using, sewage in the mine flows into the rose box through the inlet channel, filter the rubbish in the sewage through the filter screen, the water after the filtration is discharged from the drain pipe and is recycled, the filter screen is when filtering rubbish, a part rubbish is direct falls into the dustbin in, another part rubbish can be accumulated on the filter screen, through the rivers in the rose box of water suction pipe suction, then, the high-pressure pump is with rivers pressurization back from the injection pipe blowout, the high-pressure rivers are strikeed the blade, the blade drives the transmission shaft rotation under the impact force effect, drive first bevel gear through the transmission shaft and rotate, drive the rotation of second bevel gear through the rotation of second bevel gear, drive the rotation of rotation axis through the rotation axis, scrape the rubbish that is attached to on the filter screen through the scraper blade, prevent the filter screen jam, after long-time use, pause sewage gets into the rose box, then, take out the dustbin from the rose box, clear up rubbish in the dustbin, push back the rose box, continue to filter to the rose box in the rose box, it can to lead to sewage to in the rose box to carry out the filtration. In conclusion, the invention is convenient for filtering sewage, cleaning garbage in sewage and preventing blockage.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial view of the invention at a in fig. 1.
Fig. 3 is a schematic view of the open state of fig. 1 according to the present invention.
Fig. 4 is an internal cross-sectional view of the present invention.
Fig. 5 is a second internal cross-sectional view of the present invention.
Fig. 6 is a schematic diagram of a portion of the structure of the present invention.
Fig. 7 is a schematic diagram of a portion of the structure of the present invention.
Legend description:
1. a filter box; 101. limiting sliding grooves; 2. a water inlet pipe; 3. a drainage pipe; 4. a garbage collection box; 401. a sealing baffle; 402. a handle; 5. a compressing mechanism; 501. a rotating lever; 5011. a toggle rod; 502. a first thread; 503. a second thread; 504. a first threaded sleeve; 505. a second threaded sleeve; 506. a compression bar; 507. a limit rod; 6. a pressure driving mechanism; 601. a transition water tank; 6011. a return pipe; 6012. a one-way valve; 602. a high pressure pump; 603. a water suction pipe; 604. a jet pipe; 605. a transmission shaft; 606. a blade; 607. a first bevel gear; 7. a filter screen; 8. a cleaning mechanism; 801. a vertical plate; 802. a rotation shaft; 803. a second bevel gear; 804. a scraper.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Specific examples are given below.
Referring to fig. 1-7, in the embodiment of the invention, the underground water filtering device for the coal mine comprises a filtering box 1, a garbage collection box 4, a pressing mechanism 5, a pressure driving mechanism 6, a filtering net 7 and a cleaning mechanism 8, wherein a water inlet pipeline 2 is arranged on the left side of the filtering box 1, the water inlet pipeline 2 is connected with a sewage discharge pipeline of a mine, so that sewage in the mine is discharged into the filtering box 1, a drainage pipeline 3 is arranged on the right side of the filtering box 1, filtered sewage is discharged from the drainage pipeline 3, the filtered water is recycled, the filtering net 7 is fixed in the filtering box 1, the garbage collection box 4 is arranged below the left side of the filtering net 7 in the filtering box 1 in a matched manner, the garbage collection box 4 is slidably arranged at the bottom of the inner side of the filtering box 1, garbage or impurities falling on the filtering net 7 are collected through the garbage collection box 4, a sealing baffle 401 is fixed at the front end of the garbage collection box 4, a handle 402 is arranged on the sealing baffle 401, a pressing mechanism 5 for pressing the sealing baffle 401 is arranged on the outer side of the filtering box 1, the filtering box 1 is pressed onto the outer wall of the filtering box 1 through the pressing mechanism 5, the filtering mechanism 4 is prevented from flowing out of the filtering box 1, and the filtering mechanism is arranged in the filtering box 1, and the filtering mechanism is used for cleaning the garbage collection box 8 is driven by the filtering mechanism 8, and is arranged in the filtering box 1.
During the use, filter the rubbish in the rivers through filter screen 7, in the rubbish collection box 4 is directly fallen to some rubbish under the action of gravity, another part rubbish can be accumulated on filter screen 7, drive clean-up mechanism 8 through pressure driving mechanism 6 rotates, scrape the rubbish of adhering to on the filter screen 7 through clean-up mechanism 8, the rubbish of scraping relies on gravity to fall to the rubbish collection box 4 in store, after long-time use, the sewage entering rose box 1 is paused, then, take out rubbish collection box 4 from rose box 1 in, clear up the rubbish in the rubbish collection box 4, push back rubbish collection box 4 to rose box 1 again, continue to let in sewage to filter 1 in and filter can.
The pressing mechanism 5 includes: the rotary rod 501, the first screw thread 502, the second screw thread 503, the first screw thread sleeve 504, the second screw thread sleeve 505, the pressing strip 506 and the limiting rod 507, the rotary rod 501 is rotationally connected to the outer side of the filter box 1, the left half section of the rotary rod 501 is provided with the first screw thread 502, the first screw thread sleeve 504 matched with the first screw thread 502 is arranged on the outer side of the first screw thread 502, the right half section of the rotary rod 501 is provided with the second screw thread 503, the second screw thread sleeve 505 matched with the second screw thread 503 is arranged on the outer side of the second screw thread 503, the limiting rod 507 is arranged on the first screw thread sleeve 504 and the second screw thread sleeve 505, the limiting rod 507 is in sliding connection with the filter box 1, the limiting chute 101 used for the movement of the limiting rod 507 is arranged on the filter box 1, the limiting rod 507 is used for limiting the movement of the first screw thread sleeve 504 and the second screw thread sleeve 505 so that the first screw thread sleeve 505 can not rotate but can only move linearly, the rotation directions of the first thread 502 and the second thread 503 are opposite, so that when the rotating rod 501 rotates, the movement directions of the first thread bush 504 and the second thread bush 505 are opposite, the lower sides of the first thread bush 504 and the second thread bush 505 are both fixedly provided with a pressing strip 506, the pressing strip 506 is pressed on the sealing baffle 401, the right end of the rotating rod 501 is provided with a poking rod 5011, when the filter box 1 is used, the rotating rod 501 is driven to rotate through the poking rod 5011, the first thread bush 504 and the second thread bush 505 are driven to move in opposite directions through the rotating rod 501, the two pressing strips 506 are driven to move in opposite directions through the first thread bush 504 and the second thread bush 505, after the pressing strip 506 is moved away from the sealing baffle 401, the garbage collection box 4 can be pulled out of the filter box 1, after the pressing strip 506 is pressed on the sealing baffle 401, the sealing baffle 1 is prevented from leaking water flow in the filter box 1.
The cleaning mechanism 8 includes: the vertical plate 801, the rotation axis 802, the second bevel gear 803 and the scraper blade 804, the inside of the vertical plate 801 being fixed in rose box 1, the vertical plate 801 is located the right side of filter screen 7, rotate on the vertical plate 801 and be connected with rotation axis 802, the second bevel gear 803 is installed to the right-hand member of rotation axis 802, rotation axis 802 passes through filter screen 7, a plurality of scrapers 804 are installed to the left end of rotation axis 802, scraper blade 804 is laminated with filter screen 7 mutually, during the use, drive scraper blade 804 through rotation axis 802 and scrape rubbish that is attached to filter screen 7 through scraper blade 804.
The pressure driving mechanism 6 includes: the high-pressure pump 602, the water suction pipe 603, the injection pipe 604, the transmission shaft 605, blade 606 and first bevel gear 607, transition water tank 601 and high-pressure pump 602 are all fixed in the top of rose box 1, the transmission shaft 605 of inserting into rose box 1 is connected with to the internal rotation of transition water tank 601, first bevel gear 607 is installed to the bottom of transmission shaft 605, first bevel gear 607 and second bevel gear 803 running fit, the upper end of transmission shaft 605 is fixed with a plurality of blade 606, the front side of high-pressure pump 602 is connected with the water suction pipe 603 of inserting into rose box 1, the left side of high-pressure pump 602 is connected with injection pipe 604 of inserting into transition water tank 601, injection pipe 604 is directional blade 606, the back flow 6011 of inserting into rose box 1 is installed to the bottom of transition water tank 601, install the check valve 6012 on the back flow 6012, the setting through the check valve 6012 makes rivers can only flow into rose box 1 from transition water tank 601, when in the use, high-pressure pump 602 absorbs rivers 605 through water suction pipe 603, then, high-pressure pump 602 is with rivers after pressurizing, from injection pipe 604, high-pressure pump 602 is sprayed, high-pressure side, blade 606 carries out impact on the blade 606, make the water flow into the first bevel gear 803 drive the first bevel gear into the first bevel gear 601, and then drive bevel gear 601 to rotate, and drive down the bevel gear 6012 into the first bevel gear into the rotation, and rotate through the first bevel gear 6012, drive down the blade 606, and then drive down the bevel gear into the rotation.
Working principle: when the underground water filtering device for the coal mine is used, sewage in the coal mine flows into the filtering box 1 through the water inlet pipeline 2, garbage in the sewage is filtered through the filter screen 7, the filtered water is discharged from the water discharge pipeline 3 and reused, when the filter screen 7 filters the garbage, part of the garbage directly falls into the garbage collection box 4, the other part of the garbage can be accumulated on the filter screen 7, water flow in the filtering box 1 is sucked through the water suction pipe 603 by the high-pressure pump 602, then the water flow is pressurized by the high-pressure pump 602 and then sprayed out of the spraying pipe 604, the high-pressure water flow impacts the blades 606, the blades 606 under the impact force drives the transmission shaft 605 to rotate, the first bevel gear 607 is driven to rotate through the transmission shaft 605, the second bevel gear 803 is driven to rotate through the first bevel gear 803, the rotation shaft 802 is driven to rotate through the rotation shaft 802, the scraping of the scraping plate 804 is used for preventing the filter screen 7 from being blocked, after long-time use, the sewage is suspended into the filtering box 1, then the garbage collection box 4 is taken out of the filtering box 1, the garbage collection box 4 is cleaned, and the garbage collection box 4 is pushed back into the filtering box 1, namely, and the filtering box 1 can be continuously filtered.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a colliery is water filter equipment in pit, its characterized in that, including rose box (1), garbage collection box (4), hold-down mechanism (5), pressure actuating mechanism (6), filter screen (7) and clearance mechanism (8), rose box (1) internal fixation has filter screen (7), install garbage collection box (4) in rose box (1) below left of filter screen (7), garbage collection box (4) slidable mounting is in rose box (1), install clearance mechanism (8) that are used for clearing up filter screen (7) in rose box (1), install on rose box (1) and be used for driving clearance mechanism (8) pivoted pressure actuating mechanism (6);
the pressure drive mechanism (6) includes: transition water tank (601), high-pressure pump (602), water suction pipe (603), injection pipe (604), transmission shaft (605), blade (606) and first bevel gear (607), transition water tank (601) and high-pressure pump (602) are all fixed in the top of rose box (1), transition water tank (601) internal rotation is connected with transmission shaft (605) of inserting in rose box (1), first bevel gear (607) are installed to the bottom of transmission shaft (605), the upper end of transmission shaft (605) is fixed with a plurality of blades (606), the water inlet end of high-pressure pump (602) is connected with water suction pipe (603) of inserting in rose box (1), the water outlet end of high-pressure pump (602) is connected with injection pipe (604) of inserting in transition water tank (601), injection pipe (604) point to blade (606).
2. The underground water filtering device for the coal mine according to claim 1, wherein a sealing baffle plate (401) is fixed at the front end of the garbage collection box (4), a handle (402) is arranged on the sealing baffle plate (401), and a pressing mechanism (5) for pressing the sealing baffle plate (401) is arranged on the outer side of the filtering box (1).
3. A downhole water filter according to claim 2, wherein the hold-down mechanism (5) comprises: dwang (501), first screw thread (502), second screw thread (503), first screw thread cover (504), second screw thread cover (505), compress tightly strip (506) and gag lever post (507), dwang (501) rotate and connect in the outside on rose box (1), the left half section of dwang (501) is provided with first screw thread (502), first screw thread cover (504) with it is installed in the outside of first screw thread (502), the right half section of dwang (501) is provided with second screw thread (503), second screw thread cover (505) with it is installed in the outside of second screw thread (503), gag lever post (507) on first screw thread cover (504) and second screw thread cover (505) are all installed one and are inserted on rose box (1), the rotation direction of first screw thread (502) and second screw thread (503) is opposite, the downside of first screw thread cover (504) and second screw thread cover (505) all is fixed with one and compresses tightly strip (506).
4. A downhole water filter device for coal mine according to claim 3, wherein the limit rod (507) is slidably connected with the filter box (1), and a limit chute (101) for moving the limit rod (507) is arranged on the filter box (1).
5. A downhole water filter device according to claim 3, wherein the end of the turning rod (501) is provided with a toggle rod (5011).
6. The underground water filtering device for the coal mine according to claim 1, wherein a return pipe (6011) inserted into the filtering tank (1) is arranged at the bottom of the transition water tank (601), and a one-way valve (6012) is arranged on the return pipe (6011).
7. A downhole water filter according to claim 1, wherein the cleaning mechanism (8) comprises: riser (801), rotation axis (802), second bevel gear (803) and scraper blade (804), riser (801) are fixed in the inside of rose box (1), riser (801) are located the right side of filter screen (7), rotate on riser (801) and be connected with rotation axis (802), second bevel gear (803) are installed to the right-hand member of rotation axis (802), a plurality of scraper blades (804) are installed to the left end of rotation axis (802).
8. The coal mine downhole water filter apparatus of claim 7, wherein the first bevel gear (607) matingly engages the second bevel gear (803).
9. The underground water filtering device for coal mine as claimed in claim 7, wherein the rotation shaft (802) penetrates through the filter screen (7), and the scraper (804) is attached to the filter screen (7).
10. The underground water filtering device for the coal mine according to claim 1, wherein a water inlet pipeline (2) is arranged on the left side of the filtering box (1), and a water discharge pipeline (3) is arranged on the right side of the filtering box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310990126.7A CN116688601A (en) | 2023-08-08 | 2023-08-08 | Colliery is water filter equipment in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310990126.7A CN116688601A (en) | 2023-08-08 | 2023-08-08 | Colliery is water filter equipment in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116688601A true CN116688601A (en) | 2023-09-05 |
Family
ID=87843746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310990126.7A Pending CN116688601A (en) | 2023-08-08 | 2023-08-08 | Colliery is water filter equipment in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116688601A (en) |
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Application publication date: 20230905 |