CN110538497A - Negative pressure drainage mobile water-slag separating device - Google Patents
Negative pressure drainage mobile water-slag separating device Download PDFInfo
- Publication number
- CN110538497A CN110538497A CN201910942707.7A CN201910942707A CN110538497A CN 110538497 A CN110538497 A CN 110538497A CN 201910942707 A CN201910942707 A CN 201910942707A CN 110538497 A CN110538497 A CN 110538497A
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- Prior art keywords
- slag
- negative pressure
- water
- separating
- collecting
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- 239000002893 slag Substances 0.000 title claims abstract description 134
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 239000003245 coal Substances 0.000 claims abstract description 25
- 239000013049 sediment Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims 4
- 210000003437 trachea Anatomy 0.000 claims 4
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000002351 wastewater Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- B01D29/11—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 bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—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 bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
- B01D29/118—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 bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration open-ended
-
- 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
- E21F16/00—Drainage
-
- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a negative pressure drainage mobile water-slag separating device, which comprises a water-slag collecting mechanism, a negative pressure pipeline, a connecting hose and a water-slag separating mechanism, wherein the negative pressure pipeline provides negative pressure for the water-slag collecting mechanism to collect water slag and separates the water slag after being conveyed to the water-slag separating mechanism through the connecting hose; the negative pressure pipeline comprises a negative pressure suction pipe, a J-shaped air pipe and a negative pressure joint, compressed air enters the negative pressure suction pipe through the negative pressure joint and the J-shaped air pipe to generate backward negative pressure, and water and slag in the collecting hopper are conveyed into the water and slag separating mechanism through the connecting hose to be separated. The coal slag separator has the advantages of reasonable structure, quick separation of wastewater and coal slag, light and handy operation, convenient movement, good separation effect, convenient operation and maintenance, and good market prospect and development space for the prior art.
Description
Technical Field
The invention relates to the technical field of gas-water-slag separation equipment for mine underground roadways, in particular to a negative-pressure drainage movable water-slag separation device.
Background
In the drilling, exploitation, screening and transportation processes of a coal mine, a large amount of dust coal ash is inevitably generated, workers are easily attacked by pneumoconiosis after working for a long time, in addition, an underground tunnel full of dust can seriously block the exploitation progress and the visual field of the transportation tunnel, potential safety hazards are brought to the physical health and underground work of the workers, and in order to reduce the dissipation of the coal powder, a mining face can be continuously flushed with water in the drilling process, so that the coal powder generated in the drilling process is mixed with water flow to form coal water slag.
At present, water slag under a mine flows into a low-lying collecting box along a roadway, water seeps out from a gap after the water slag is collected, and workers load the residual coal slag on a belt to carry away; the roadway has a large amount of water, and the coal slag is accumulated on the roadway, so that great disadvantages are brought to the roadway and workers coming and going, and the normal operation of underground work is influenced.
How to design a rational in infrastructure, design benefit collects waste water cinder rapidly, and the quickly separating separates, and the separation effect is good, and the operation is light and handy, and it is the problem that needs to solve at present to remove convenient negative pressure drainage mobile water sediment separator who has running gear.
Disclosure of Invention
the method aims to solve the problems that coal dust mixed water flow generated in the drilling, mining, screening and transporting processes of the existing coal mine forms coal water granulated slag, the water granulated slag flows into a low-lying collecting box along a roadway, water seeps out from gaps after the water granulated slag is collected, and workers load the residual coal granulated slag on a belt to transport away; the invention provides a negative pressure pumping and discharging movable water-slag separating device, which aims to realize the purposes of reasonable structure, ingenious design, rapid and quick separation of waste water and coal slag, good separation effect, light and handy operation and convenient movement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a negative pressure drainage mobile water-slag separating device comprises a water-slag collecting mechanism, a negative pressure pipeline, a connecting hose and a water-slag separating mechanism, wherein the negative pressure pipeline provides negative pressure for the water-slag collecting mechanism to collect water slag and separate the water slag after being conveyed to the water-slag separating mechanism through the connecting hose, the water-slag collecting mechanism comprises a pneumatic motor, a collecting hopper, a first travelling wheel and two impellers, the collecting hopper is of a rectangular structure with a front opening and a back opening and two closed sides, the two impellers are positioned in the collecting hopper, rubber poking pieces for poking the water slag are arranged on the impellers, the first travelling wheel is respectively fixed on two side walls of the collecting hopper, a water-slag inlet is reserved between the two impellers, the central shaft of the impeller and the rotating shaft of the pneumatic motor positioned above the collecting hopper are the same shaft, the horizontal rotating directions of the two impellers are opposite and face the inside of the collecting hopper together, the pneumatic motor rotates to drive the two, the granulated slag is brought into a collecting hopper from a granulated slag inlet; the negative pressure pipeline comprises a negative pressure suction pipe, a J-shaped air pipe and a negative pressure connector, wherein the negative pressure suction pipe is connected with the rear end of the collecting hopper, the pipe head of the J-shaped air pipe is installed inside the negative pressure suction pipe, the negative pressure connector is located at the extending end of the J-shaped air pipe, compressed air enters the negative pressure suction pipe through the negative pressure connector and the J-shaped air pipe to generate backward negative pressure, and water and slag in the collecting hopper are sent into the water and slag separating mechanism through the connecting hose to be separated.
the water-slag separating mechanism comprises a feeding hole, a hopper, a separating cylinder, a filter screen, a packing auger, a power source, a slag discharging hole, a bottom frame, a second travelling wheel, a water discharging hole and an observation window; the opening of the hopper is gradually reduced from top to bottom, the feed inlet is connected with the granulating slag collecting mechanism through a connecting hose and is used for receiving the granulating slag collected by the granulating slag collecting mechanism, the water outlet is connected with a roadway drainage ditch, and water in the granulating slag is discharged into the roadway drainage ditch by using the granulating slag separating mechanism; the auger provides power by installing the power supply in the cylinder outside, and the row cinder notch is located the end of cylinder, the filter screen is located the periphery of auger, and moisture in the coal slime sediment is appeared from the filter screen in the auger extrusion is carried to flow out from the outlet that is located the cylinder bottom.
The mesh number of the filter screen is 60 meshes.
the power source is a speed reducing motor or a hydraulic motor.
And an observation window for monitoring the water granulated slag conveying in real time is arranged on the separating cylinder.
The separating cylinder is fixed on the underframe through a reinforcing beam.
Compared with the prior art, the invention has the beneficial effects that:
1) the water granulated slag collecting mechanism, the negative pressure pipeline, the connecting hose and the water granulated slag separating mechanism are added, so that waste water and coal slag deposited in a roadway are quickly collected and separated out, and the water granulated slag collecting mechanism, the negative pressure pipeline and the connecting hose are easy to operate and convenient to move, and the separating effect is good;
2) The grain slag collecting mechanism comprises a pneumatic motor, a collecting hopper, first travelling wheels and two impellers, the collecting hopper is of a rectangular structure with a front opening, a rear opening and two closed sides, the two impellers are located inside the collecting hopper, the first travelling wheels are respectively fixed on two side walls of the collecting hopper, a grain slag inlet is reserved between the two impellers, the central shafts of the impellers and the rotating shaft of the pneumatic motor located above the collecting hopper are a common shaft, the horizontal rotating directions of the two impellers are opposite and face the inside of the collecting hopper together, the pneumatic motor rotates to drive the two impellers to move, and the grain slag is brought into the collecting hopper from the grain slag inlet;
3) The negative pressure pipeline comprises a negative pressure suction pipe, a J-shaped air pipe and a negative pressure joint, wherein the negative pressure suction pipe is connected with the rear end of the collecting hopper, the pipe head of the J-shaped air pipe is arranged in the negative pressure suction pipe, the negative pressure joint is positioned at the extending end of the J-shaped air pipe, compressed air enters the negative pressure suction pipe through the negative pressure joint and the J-shaped air pipe to generate backward negative pressure, and water and slag in the collecting hopper are sent into the water and slag separating mechanism through the connecting hose to be separated;
4) the water-slag separating mechanism comprises a feeding hole, a hopper, a separating cylinder, a filter screen, a packing auger, a power source, a slag discharging hole, a bottom frame, a second travelling wheel, a water discharging hole and an observation window; the opening of the hopper is gradually reduced from top to bottom, the feed inlet is connected with the granulating slag collecting mechanism through a connecting hose and is used for receiving the granulating slag collected by the granulating slag collecting mechanism, the water outlet is connected with a roadway drainage ditch, and water in the granulating slag is discharged into the roadway drainage ditch by using the granulating slag separating mechanism; the auger is powered by a power source arranged outside the separating cylinder, the slag discharge port is positioned at the tail end of the separating cylinder, the filter screen is positioned at the periphery of the auger, and water in the coal slime is separated out from the filter screen in the extrusion conveying of the auger and flows out from a water discharge port positioned at the bottom of the separating cylinder;
5) The power source of the transmission shaft is a speed reduction motor or a hydraulic motor, and the power transmission part can be provided with a motor speed reducer or the drive of the hydraulic motor according to the requirements of customers, and can also adopt other drive modes such as a pneumatic motor and the like;
6) The separating cylinder is provided with an observation window for monitoring grain slag conveying in real time, so that the grain slag conveying condition can be observed conveniently at any time, and the separating cylinder is prevented from being blocked;
7) The mesh number of the first filter screen and the second filter screen is 60 meshes, and the 60 meshes of the filter screens can effectively separate water and coal slime residues.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the grain slag collecting mechanism of the present invention;
FIG. 3 is a schematic perspective view of the granulating slag collecting mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the negative pressure pipeline of the present invention;
FIG. 5 is a schematic cross-sectional view of the negative pressure line of the present invention;
FIG. 6 is a schematic structural view of a water-slag separating mechanism according to the present invention;
The labels in the figure are: 1. the water and slag collecting device comprises a water and slag collecting mechanism, 101, a pneumatic motor, 102, a collecting hopper, 103, a first travelling wheel, 104, an impeller, 2, a negative pressure pipeline, 201, a negative pressure suction pipe, 202, a J-shaped air pipe, 203, a negative pressure joint, 3, a connecting hose, 4, a water and slag separating mechanism, 401, a feeding port, 402, a hopper, 403, a separating cylinder, 404, a filter screen, 405, a packing auger, 406, a power source, 407, a slag discharging port, 408, a bottom frame, 409, a second travelling wheel, 410, a water discharging port, 411 and an observation window.
Detailed Description
the following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in the figure, the negative pressure drainage mobile type water-slag separating device comprises a water-slag collecting mechanism 1, a negative pressure pipeline 2, a connecting hose 3 and a water-slag separating mechanism 4, wherein the negative pressure pipeline 2 provides negative pressure for the water-slag collecting mechanism 1 to collect water slag and conveys the water-slag separating mechanism 4 through the connecting hose 3 to separate the water slag, the water-slag collecting mechanism 1 comprises a pneumatic motor 101, a collecting hopper 102, a first walking wheel 103 and two impellers 104, the collecting hopper 102 is of a rectangular body structure with a front opening and a rear opening and two closed sides, the two impellers 104 are positioned in the collecting hopper 102, the impellers 104 are provided with rubber poking pieces for poking the water slag, the first walking wheel 103 is respectively fixed on two side walls of the collecting hopper 102, a water-slag inlet is reserved between the two impellers 104, the central shaft of the impeller 104 and the rotating shaft of the pneumatic motor 101 positioned above the collecting hopper 102 are the same shaft, the horizontal rotating directions of the two impellers 104 are opposite and face the inside of, the pneumatic motor 101 rotates to drive the two impellers 104 to move, and water granulated slag is brought into the collecting hopper 102 from the water granulated slag inlet; the negative pressure pipeline 2 comprises a negative pressure suction pipe 201, a J-shaped air pipe 202 and a negative pressure joint 203, wherein the negative pressure suction pipe 201 is connected with the rear end of the collecting hopper 102, the pipe head of the J-shaped air pipe 202 is installed inside the negative pressure suction pipe 201, the negative pressure joint 203 is located at the extending end of the J-shaped air pipe 202, compressed air enters the negative pressure suction pipe 201 through the negative pressure joint 203 and the J-shaped air pipe 202 to generate backward negative pressure, and water and slag in the collecting hopper 102 are sent into the water and slag separating mechanism 4 through the connecting hose 3 to be separated.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the water-slag separating mechanism 4 comprises a feed inlet 401, a hopper 402, a separating cylinder 403, a filter screen 404, an auger 405, a power source 406, a slag discharge port 407, a bottom frame 408, a second travelling wheel 409, a water discharge port 410 and an observation window 411; the opening of the hopper 402 is gradually reduced from top to bottom, the feed inlet 401 is connected with the granulating slag collecting mechanism 1 through a connecting hose 3 and is used for receiving the granulating slag collected by the granulating slag collecting mechanism 1, the water outlet 410 is connected with a roadway drainage ditch, and water in the granulating slag is discharged into the roadway drainage ditch by using the granulating slag separating mechanism 4; the auger 405 is powered by a power source 406 arranged outside the separating cylinder 403, the slag discharge port 407 is positioned at the tail end of the separating cylinder 403, the filter screen 404 is positioned at the periphery of the auger 405, and water in the coal slime is separated out from the filter screen 404 in the extrusion conveying of the auger 405 and flows out from a water discharge port 410 positioned at the bottom of the separating cylinder 403.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the mesh size of the screen 404 is 60 mesh as described.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the power source 406 as depicted is a reduction motor or a hydraulic motor.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the separating cylinder 403 is provided with an observation window 411 for monitoring the water granulated slag transportation in real time.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the separator bowl 403 as described is secured to the chassis 408 by reinforcing beams.
In practical application, the second travelling wheel 409 is pushed to a preset waste water and coal slag deposition place, the negative pressure pipeline 2 is connected, the horizontal rotating directions of the two impellers 104 are opposite and face the inside of the collecting hopper 102 together, the pneumatic motor 101 rotates to drive the two impellers 104 to move, water slag is brought into the collecting hopper 102 from a water slag inlet, the negative pressure joint 203 is located at the extending end of the J-shaped air pipe 202, compressed gas enters the negative pressure suction pipe 201 through the negative pressure joint 203 and the J-shaped air pipe 202 to generate backward negative pressure, and the water slag in the collecting hopper 102 is sent into the water slag separating mechanism 4 through the connecting hose 3; the feed inlet 401 is connected with the granulating slag collecting mechanism 1 through a connecting hose 3 and is used for receiving the granulating slag collected by the granulating slag collecting mechanism 1, the water outlet 410 is connected with a roadway drainage ditch, and water in the granulating slag is discharged into the roadway drainage ditch by using the granulating slag separating mechanism 4; the auger 405 is powered by a power source 406 arranged outside the separating cylinder 403, the slag discharge port 407 is positioned at the tail end of the separating cylinder 403, the filter screen 404 is positioned at the periphery of the auger 405, and water in the coal slime is separated out from the filter screen 404 in the extrusion conveying of the auger 405 and flows out from a water discharge port 410 positioned at the bottom of the separating cylinder 403.
The coal slag separator has the advantages of reasonable structure, ingenious design, rapid separation of collected wastewater and coal slag, good separation effect, light operation and convenient movement, and solves the problems that coal dust mixed water flow generated in the drilling, mining, screening and transporting processes of the existing coal mine forms coal water slag, the water slag flows into a low-lying collecting box along a roadway, water seeps out from gaps after the water slag is collected, and workers load the residual coal slag on a belt to transport away; the tunnel deposits a large amount of water, and the cinder piles up the tunnel, brings very big unfavorable for tunnel and the workman that comes and goes, influences technical problem such as work normal clear in the pit, to prior art, has fine market prospect and development space.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.
Claims (6)
1. The utility model provides a portable grain sediment separator is put to negative pressure drainage, collects mechanism (1), negative pressure pipeline (2), coupling hose (3) and grain sediment separating mechanism (4) including the grain sediment, and negative pressure pipeline (2) collect mechanism (1) for the grain sediment provides the negative pressure and collects the grain sediment to carry through coupling hose (3) and separate its characterized in that after water sediment separating mechanism (4): the granulating slag collecting mechanism (1) comprises a pneumatic motor (101), a collecting hopper (102), a first travelling wheel (103) and two impellers (104), wherein the collecting hopper (102) is of a rectangular structure with a front opening and a rear opening and two closed sides, the two impellers (104) are positioned in the collecting hopper (102), rubber shifting pieces for shifting granulating slag are arranged on the impellers (104), the first travelling wheel (103) is respectively fixed on two side walls of the collecting hopper (102), a granulating slag inlet is reserved between the two impellers (104), a central shaft of the impeller (104) and a rotating shaft of the pneumatic motor (101) positioned above the collecting hopper (102) are a common shaft, the horizontal rotating directions of the two impellers (104) are opposite and face the inside of the collecting hopper (102) together, the pneumatic motor (101) rotates to drive the two impellers (104) to move, and the granulating slag is brought into the collecting hopper (102) from the granulating slag inlet; negative pressure pipeline (2) include negative pressure straw (201), J-shaped trachea (202) and negative pressure joint (203), wherein negative pressure straw (201) is connected with collection fill (102) rear end, the tube head of J-shaped trachea (202) is installed inside negative pressure straw (201), negative pressure joint (203) are located the end that stretches out of J-shaped trachea (202), compressed gas passes through negative pressure joint (203), J-shaped trachea (202) get into negative pressure straw (201) and produce backward negative pressure, send into the water sediment separating mechanism (4) through coupling hose (3) with the water sediment in collecting fill (102) and separate.
2. The negative pressure drainage mobile water-slag separating device of claim 1, which is characterized in that: the water-slag separating mechanism (4) comprises a feed inlet (401), a hopper (402), a separating cylinder (403), a filter screen (404), a packing auger (405), a power source (406), a slag discharge port (407), a bottom frame (408), a second travelling wheel (409), a water discharge port (410) and a filter screen (411); the opening of the hopper (402) is gradually reduced from top to bottom, the feed inlet (401) is connected with the granulating slag collecting mechanism (1) through a connecting hose (3) and is used for receiving the granulating slag collected by the granulating slag collecting mechanism (1), the water outlet (410) is connected with a roadway drainage ditch, and water in the granulating slag is discharged into the roadway drainage ditch by using the granulating slag separating mechanism (4); the auger (405) is powered by a power source (406) arranged outside the separating cylinder (403), the slag discharge port (407) is positioned at the tail end of the separating cylinder (403), the filter screen (404) is positioned at the periphery of the auger (405), and water in the coal slime is separated out from the filter screen (404) in the extrusion conveying process of the auger (405) and flows out from a water discharge port (410) positioned at the bottom of the separating cylinder (403).
3. The negative pressure drainage mobile water-slag separating device of claim 2, which is characterized in that: the mesh number of the filter screen (404) is 60 meshes.
4. The negative pressure drainage mobile water-slag separating device of claim 2, which is characterized in that: the power source (406) is a speed reducing motor or a hydraulic motor.
5. the negative pressure drainage mobile water-slag separating device of claim 2, which is characterized in that: an observation window (411) for monitoring the water granulated slag conveying in real time is arranged on the separating cylinder (403).
6. the negative pressure drainage mobile water-slag separating device of claim 2, which is characterized in that: the separating cylinder (403) is fixed on the underframe (408) through a reinforcing beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942707.7A CN110538497A (en) | 2019-09-30 | 2019-09-30 | Negative pressure drainage mobile water-slag separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942707.7A CN110538497A (en) | 2019-09-30 | 2019-09-30 | Negative pressure drainage mobile water-slag separating device |
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| Publication Number | Publication Date |
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| CN110538497A true CN110538497A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910942707.7A Pending CN110538497A (en) | 2019-09-30 | 2019-09-30 | Negative pressure drainage mobile water-slag separating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774894A (en) * | 2021-02-22 | 2021-05-11 | 刘艳娥 | Railway coal transportation sprinkler |
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Cited By (1)
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