CN112253231A - Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field - Google Patents
Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field Download PDFInfo
- Publication number
- CN112253231A CN112253231A CN202011257382.8A CN202011257382A CN112253231A CN 112253231 A CN112253231 A CN 112253231A CN 202011257382 A CN202011257382 A CN 202011257382A CN 112253231 A CN112253231 A CN 112253231A
- Authority
- CN
- China
- Prior art keywords
- coal
- cinder
- liquid
- crawler
- cinder liquid
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 128
- 239000003245 coal Substances 0.000 title claims abstract description 84
- 239000002893 slag Substances 0.000 title claims abstract description 49
- 238000005553 drilling Methods 0.000 title claims abstract description 44
- 239000003818 cinder Substances 0.000 claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- 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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a crawler walking type centralized coal cinder liquid collecting device for a coal mine underground drilling site, which comprises a crawler walking trolley, wherein a conveying pipe is arranged at the upper part of the crawler walking trolley through a support frame, flange mounting surfaces are respectively arranged on two ports of the conveying pipe, a feeding pipe is connected on the flange mounting surface at one end of the conveying pipe in a flange manner, the feeding pipe conveys coal cinder liquid generated in the drilling process into the conveying pipe through a pipeline, a plugging end cover is connected on the flange mounting surface at the other end of the conveying pipe in a flange manner, a plurality of coal cinder liquid guide outlets are arranged on the conveying pipe at intervals, a valve switch is arranged on each coal cinder liquid guide outlet, and a coal cinder liquid collecting mechanism is arranged on the crawler walking trolley and below the conveying pipe; the invention not only saves coal resources and optimizes the environment in the roadway, but also can utilize the coal slag liquid collecting mechanism to carry out solid collection on the coal slag discharged from the drilled hole so as to judge whether the drilled hole is qualified or not, thereby greatly improving the working efficiency of drilling.
Description
Technical Field
The invention relates to the technical field of coal slag liquid collection, in particular to a crawler walking type coal slag liquid centralized collection device for a coal mine underground drilling site.
Background
In the current coal mine tunnel boring yard, it needs to cut the coal hole with a large amount of high pressure water to beat the in-process, the mixed thick liquid of final exhaust water and cinder slips to the tunnel along drilling, not only extravagant coal resource, and can lead to the environment variation in the tunnel, simultaneously because whether qualified in order to judge drilling need be measured the cinder that drills out, this again need carry out the solid to the cinder that the landing is to the tunnel and collects, workman's intensity of labour has greatly been increased, and the work efficiency who drills is seriously influenced. Therefore, a new apparatus is needed to solve the above problems.
Disclosure of Invention
In view of the above, the invention provides a crawler belt walking type centralized coal slag liquid collecting device for a coal mine underground drilling site, which can directly collect coal slag liquid discharged in a drilling process and lead the coal slag liquid out of a coal slag liquid guide outlet to a coal slag liquid collecting mechanism below a valve switch, solid coal slag is blocked in a material gathering area by a filter screen, and water enters a drain pipe from a drain hole and is led to a drain ditch in a roadway, so that coal resources are saved, the environment in the roadway is optimized, the coal slag liquid collecting mechanism can be used for performing solid collection on the coal slag discharged from a drilling hole to judge whether the drilling hole is qualified, and the drilling work efficiency is greatly improved.
In order to achieve the aim, the invention provides a crawler belt walking type centralized coal slag liquid collecting device for a coal mine underground drilling site, which comprises a crawler belt walking trolley, the upper part of the crawler-type walking trolley is provided with a material conveying pipe along the length direction through a supporting frame, two ports of the material conveying pipe are respectively provided with a flange mounting surface, the flange mounting surface at one end of the material conveying pipe is connected with a material inlet pipe through a flange, the feed pipe conveys the cinder liquid generated in the drilling process into the feed delivery pipe through a pipeline, a plugging end cover is connected on a flange mounting surface at the other end of the feed delivery pipe in a flange way, a plurality of cinder liquid guide outlets are arranged on the conveying pipe at intervals, each cinder liquid guide outlet is provided with a valve switch, and a cinder liquid collecting mechanism is arranged below the conveying pipe and used for collecting cinder liquid guided out by a cinder liquid guide outlet.
Furthermore, the cinder liquid collecting mechanism comprises a surrounding plate arranged at the edge of the upper part of the crawler-type walking trolley and used for collecting cinder liquid guided out by the cinder liquid guide outlet, a partition plate is arranged inside the surrounding plate to divide the inside of the surrounding plate into material gathering areas which are the same as the cinder liquid guide outlet in quantity and correspond to the cinder liquid guide outlet one by one, a drain hole is formed in the side surface of the surrounding plate corresponding to each material gathering area, a filter screen is arranged on each drain hole, one end of a drain pipe is connected to the outer side of each drain hole, and the other end of the drain pipe is led into a drain ditch in a roadway during use.
Further, a gas drainage port is formed in the material conveying pipe.
Furthermore, an observation window is arranged on the material conveying pipe.
Furthermore, the bottoms of the two ends of the conveying pipe are respectively provided with a slag cleaning hole, and the slag cleaning holes are in threaded connection with plugs.
Further, the valve switch is a manual valve switch, or a hydraulic valve switch, or an electric valve switch, or a pneumatic valve switch.
Further, the number of the coal slag liquid guide outlets is 2-5.
The technical scheme of the invention has the following beneficial effects: the invention aims at the technical problems that in the current coal mine tunnel drilling field, a large amount of high-pressure water is needed to be used for washing and cutting coal holes in the drilling process, finally discharged water and coal cinder mixed slurry slides into the tunnel along the drilled hole, not only is the coal resource wasted, but also the environment in the tunnel is deteriorated, and meanwhile, the drilled coal cinder is required to be measured to judge whether the drilled hole is qualified or not, so that the coal cinder sliding into the tunnel is required to be subjected to solid collection, the labor intensity of workers is greatly increased, and the drilling work efficiency is seriously influenced. The utility model provides a colliery is gathering device is concentrated with track walking cinder liquid in pit drilling field, including crawler-type walking dolly, be provided with the conveying pipeline along its length direction on crawler-type walking dolly upper portion, all be provided with flange mounting face on the both ends mouth of conveying pipeline, flange joint has the inlet pipe on the flange mounting face that lies in conveying pipeline one end, the inlet pipe is through the pipeline with the cinder liquid that the in-process of drilling produced to be carried into in the conveying pipeline, flange joint has the shutoff end cover on the flange mounting face that lies in the conveying pipeline other end, the interval is provided with a plurality of cinder liquid delivery port on the conveying pipeline, all be provided with the valve switch on every cinder liquid delivery port, just be provided with cinder liquid collection mechanism in the below that lies in the conveying pipeline on crawler-type walking dolly and be used for collecting the cinder liquid of deriving by cinder liquid delivery port.
In addition, the cinder liquid collecting mechanism comprises a coaming arranged at the edge of the upper part of the crawler-type walking trolley and used for gathering cinder liquid guided out by a cinder liquid guide outlet, a partition plate is arranged in the coaming to divide the interior of the coaming into gathering material areas which are the same as the cinder liquid guide outlet in quantity and correspond to the cinder liquid guide outlet one by one, a drain hole is respectively arranged on the side surface of the coaming corresponding to each gathering material area, a filter screen is arranged on each drain hole, one end of a drain pipe is connected to the outer side of each drain hole, and the other end of the drain pipe is led into a drain ditch in a roadway during use.
The coal slag liquid collecting mechanism can directly collect the coal slag liquid discharged in the drilling process and lead the coal slag liquid out of the coal slag liquid guide outlet to the coal slag liquid collecting mechanism below the valve switch, solid coal slag is blocked in the material gathering area by the filter screen, and water enters the drain pipe from the drain hole and is led to the drain ditch in the roadway, so that not only are coal resources saved and the environment in the roadway optimized, but also the coal slag liquid collecting mechanism can be used for carrying out solid collection on the coal slag discharged from the drilled hole to judge whether the drilled hole is qualified, and the drilling work efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural front view of a crawler-type centralized collecting device for coal slag liquid for a coal mine underground drilling site according to the present invention;
FIG. 2 is a schematic structural right view of a crawler-type centralized collecting device for coal slag liquid for a coal mine underground drilling site according to the present invention;
reference numerals:
a crawler-type traveling trolley 1; a support frame 2; a delivery pipe 3; a flange mounting surface 4; a feed pipe 5; a pipeline 6; end cap 7 is plugged; a coal slag liquid outlet 8; a valve switch 9; a coaming 10; a partition plate 11; a drain hole 12; a drain pipe 13; a gas discharge port 14; an observation window 15; a slag cleaning hole 16; and a plug 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1-2: the utility model provides a colliery is gathering device in pit with track walking cinder liquid for drilling field, includes crawler-type walking dolly, crawler-type walking dolly upper portion is provided with the conveying pipeline through the support frame along its length direction, all be provided with flange mounting face on the both ends mouth of conveying pipeline, be located flange connection has the inlet pipe on the flange mounting face of conveying pipeline one end, the inlet pipe will be beaten the cinder liquid transport that the in-process produced through the pipeline and advance in the conveying pipeline, be located flange connection has the shutoff end cover on the flange mounting face of the conveying pipeline other end, the interval is provided with a plurality of cinder liquid delivery port on the conveying pipeline, all is provided with the valve switch on every cinder liquid delivery port, on the crawler-type walking dolly and be located the below of conveying pipeline is provided with cinder liquid collection mechanism and is used for collecting the cinder liquid of deriving by cinder liquid delivery port.
Particularly, as shown in fig. 1 and 2, a colliery is track walking cinder liquid centralized collection device for underground drill site in colliery, including track-mounted walking dolly 1, track-mounted walking dolly 1 upper portion is provided with conveying pipeline 3 along its length direction through support frame 2, all be provided with flange mounting face 4 on the both ends mouth of conveying pipeline 3, be located flange joint has inlet pipe 5 on flange mounting face 4 of conveying pipeline 3 one end, inlet pipe 5 is carried the cinder liquid that produces in the drilling process through pipeline 6 in the conveying pipeline 3, be located flange joint has shutoff end cover 7 on the flange mounting face 4 of the conveying pipeline 3 other end, the interval is provided with two cinder liquid delivery outlets 8 on the conveying pipeline 3, all is provided with valve switch 9 on every cinder liquid delivery outlet 8, on track-mounted walking dolly 1 and be located the below of conveying pipeline 3 is provided with cinder liquid collection mechanism and is used for collecting the cinder liquid that is derived by cinder liquid delivery outlet 8.
In the embodiment, after the centralized collecting device for the coal cinder liquid adopts the structure, any port of the conveying pipe 3 can be selected as a feeding port as required, so that construction personnel can conveniently select the port according to actual requirements, and the coal cinder liquid generated in the drilling process enters the conveying pipe 3 through the feeding pipe 5 by using a pipeline; in addition, when the conveying pipe 3 is used for guiding out the cinder liquid, one valve switch 9 is opened each time to collect the cinder liquid discharged in the drilling process and guide the cinder liquid into the cinder liquid collecting mechanism corresponding to the lower part of the valve switch 9, so that seamless switching between different cinder liquid collecting mechanisms can be realized, the precipitation and filtration time of the cinder liquid in the cinder liquid collecting mechanism is superposed with the drilling process, the working efficiency is improved, namely after the solid cinder liquid in one cinder liquid collecting mechanism is filled up, the precipitation and filtration are needed for a period of time, the valve switch corresponding to the upper part of the cinder liquid collecting mechanism is closed, and the other valve switch is opened to lead the cinder liquid in the conveying pipe 3 into the corresponding cinder liquid collecting mechanism from the cinder liquid guide outlet at the position, and the cinder liquid collecting mechanism also needs a period of time when the cinder liquid is filled up, different valve switches are seamlessly switched, so that the sedimentation filtering time and the filling time of the coal slag liquid collecting mechanism are overlapped and crossed together, the coal slag liquid-solid-liquid separation efficiency is greatly improved, the drilling machine does not need to stop, and the probability of the drilling machine breaking down is reduced. In addition, it is obvious that two cinder liquid guide outlets 8 are arranged on the conveying pipe 3 at intervals, and more cinder liquid guide outlets 8, such as three or four cinder liquid guide outlets 8, may also be arranged on the conveying pipe 3 at intervals. The coal slag liquid collecting mechanism can directly collect the coal slag liquid discharged in the drilling process and lead the coal slag liquid out of the coal slag liquid guide outlet to the coal slag liquid collecting mechanism below the valve switch, solid coal slag is blocked in the material gathering area by the filter screen, and water enters the drain pipe from the drain hole and is led to the drain ditch in the roadway, so that not only are coal resources saved and the environment in the roadway optimized, but also the coal slag liquid collecting mechanism can be used for carrying out solid collection on the coal slag discharged from the drilled hole to judge whether the drilled hole is qualified, and the drilling work efficiency is greatly improved.
According to an embodiment of the present invention, as shown in fig. 1, the cinder liquid collecting mechanism includes a surrounding plate 10 disposed at an upper edge of the crawler type traveling trolley 1 for collecting cinder liquid guided out from the cinder liquid guide outlet 8, a partition plate 11 is disposed inside the surrounding plate 10 to divide the inside of the surrounding plate 10 into aggregate regions having the same number as the cinder liquid guide outlet 8 and corresponding to the cinder liquid guide outlet 8 one by one, a drain hole 12 is disposed on a side surface of the surrounding plate 10 corresponding to each aggregate region, a filter screen is disposed on each drain hole 12, one end of a drain pipe 13 is connected to an outer side of each drain hole 12, and when in use, the other end of the drain pipe 13 is guided into a drain ditch in a roadway.
In this embodiment, behind the cinder liquid collection mechanism adopted above-mentioned structure, the cinder liquid is derived to valve switch below by cinder liquid delivery port and gathers in the material district, solid cinder is kept off by the filter screen and has gathered in the material district, and moisture gets into the drain pipe by the wash port and causes in the escape canal in the tunnel, not only practiced thrift coal resources, optimized the environment in the tunnel, and can utilize cinder liquid collection mechanism to carry out solid collection in order to judge whether qualified in order to punch to the discharged cinder of drilling, the work efficiency who drills has greatly been improved.
According to an embodiment of the present invention, as shown in fig. 1, a gas drainage port 14 is provided on the material conveying pipe 3, so that gas can be drained for the second time to prevent gas from exceeding the standard in the roadway.
According to one embodiment of the invention, as shown in fig. 1, the feed conveyor pipe 3 is provided with an observation window 15, so that when the inside of the feed conveyor pipe 3 is cleaned, the observation window 15 can be opened to observe and clean the inside of the feed conveyor pipe 3.
According to one embodiment of the invention, as shown in fig. 1, the bottoms of both ends of the conveying pipeline 3 are respectively provided with a slag cleaning hole 16, and a plug 17 is connected to the slag cleaning hole 16 in a threaded manner.
According to an embodiment of the present invention, the valve switch 9 is a manual valve switch, and it is obvious that the valve switch 9 may be other types, such as a hydraulic valve switch, an electric valve switch, or a pneumatic valve switch.
According to an embodiment of the present invention, as shown in fig. 1, the number of the liquid coal cinder outlets 8 is 2, and obviously, the number of the liquid coal cinder outlets 8 may also be multiple, such as 3, 4, or 5.
The use method of the invention comprises the following steps: firstly, moving the centralized collecting device for coal cinder liquid to a drilling site in a coal mine, selecting one port of a conveying pipe as a feeding hole according to actual needs, connecting a flange of the feeding pipe to the feeding hole, and plugging the other port by using a plugging end cover; then, conveying the coal cinder liquid generated in the drilling process into a conveying pipe by using a pipeline; later, open one of them valve switch and collect and derive to the cinder liquid collection mechanism that the valve switch below corresponds in order to bore the discharged cinder liquid of in-process, solid cinder has been kept off in gathering the material district by the filter screen, and moisture gets into the drain pipe and leads to in the escape canal in the tunnel by the wash port, has not only practiced thrift coal resources, has optimized the environment in the tunnel, and can utilize cinder liquid collection mechanism to carry out the solid collection in order to judge whether qualified in order to punch to the cinder that the drilling was discharged, has greatly improved the work efficiency who drills.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a colliery is crawler travel formula cinder liquid for pit drilling field and is concentrated collection device which characterized in that: including crawler-type walking dolly, crawler-type walking dolly upper portion is provided with the conveying pipeline through the support frame along its length direction, all be provided with flange mounting face on the both ends mouth of conveying pipeline, be located flange connection has the inlet pipe on the flange mounting face of conveying pipeline one end, the inlet pipe will be drilled the cinder liquid that the in-process produced through the pipeline and carry into in the conveying pipeline, be located flange connection has the shutoff end cover on the flange mounting face of the conveying pipeline other end, the interval is provided with a plurality of cinder liquid delivery port on the conveying pipeline, all is provided with the valve switch on every cinder liquid delivery port, on the crawler-type walking dolly and be located the below of conveying pipeline is provided with cinder liquid collection mechanism and is used for collecting the cinder liquid of deriving by cinder liquid delivery port.
2. The crawler belt walking type centralized coal slag liquid collecting device for the coal mine underground drilling site as claimed in claim 1, wherein: the cinder liquid collecting mechanism comprises a coaming arranged at the edge of the upper part of the crawler-type walking trolley and is used for gathering cinder liquid guided out by a cinder liquid guide outlet, a partition plate is arranged in the coaming to divide the interior of the coaming into material gathering areas which are the same as the cinder liquid guide outlet in quantity and correspond to the cinder liquid guide outlet one by one, a drain hole is respectively formed in the side surface of the coaming corresponding to each material gathering area, a filter screen is arranged on each drain hole, one end of a drain pipe is connected to the outer side of each drain hole, and the other end of the drain pipe is led into a drain ditch in a roadway during use.
3. The crawler belt walking type centralized coal slag liquid collecting device for the coal mine underground drilling site as claimed in claim 2, wherein: and a gas drainage port is arranged on the material conveying pipe.
4. The crawler belt walking type centralized coal slag liquid collecting device for the coal mine underground drilling site as claimed in claim 3, wherein: an observation window is arranged on the material conveying pipe.
5. The device for collecting the crawler-type centralized cinder liquid for the coal mine underground drilling site as claimed in claim 4, wherein: the bottom of the two ends of the conveying pipe is respectively provided with a slag cleaning hole, and the slag cleaning holes are in threaded connection with plugs.
6. The crawler-type centralized collecting device for the coal slag liquid for the underground coal mine drilling site as claimed in any one of claims 1 to 5, wherein: the valve switch is a manual valve switch, a hydraulic valve switch, an electric valve switch or a pneumatic valve switch.
7. The crawler-type centralized collecting device for the coal slag liquid for the underground coal mine drilling site as claimed in any one of claims 1 to 5, wherein: the number of the coal cinder liquid leading-out ports is 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257382.8A CN112253231A (en) | 2020-11-11 | 2020-11-11 | Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257382.8A CN112253231A (en) | 2020-11-11 | 2020-11-11 | Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112253231A true CN112253231A (en) | 2021-01-22 |
Family
ID=74265482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011257382.8A Withdrawn CN112253231A (en) | 2020-11-11 | 2020-11-11 | Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112253231A (en) |
-
2020
- 2020-11-11 CN CN202011257382.8A patent/CN112253231A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112211245B (en) | Urban river channel silt and algae cleaning device for hydraulic engineering | |
| CN204827222U (en) | Hydrodrill with drill way blowout preventer | |
| CN109763783A (en) | A kind of mine underground air water slag separation system with dust gathering arrester | |
| CN213684234U (en) | Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field | |
| CN112253231A (en) | Crawler walking type centralized coal slag liquid collecting device for underground coal mine drilling field | |
| CN109775881A (en) | A kind of gas slag separation device with walking mechanism | |
| CN213684235U (en) | Continuous coal slag-liquid separation metering equipment for underground coal mine drilling field | |
| CN204898861U (en) | Underground pipeline dredging car | |
| CN209011829U (en) | Mud water type TBM and slurry-water balance type shield machine | |
| CN218093134U (en) | Multistage tunnel trash removal and distribution system | |
| CN112253232A (en) | Continuous coal slag-liquid separation metering equipment for underground coal mine drilling field | |
| CN207934841U (en) | Underground coal mine is drilled and the blowout prevention device for reducing dust in punch process | |
| CN113663383A (en) | Filter device for muddy water type shield tunneling machine and using method thereof | |
| CN115199231A (en) | Hole blowout preventing device and method with integration of slag discharging, dust removing and extraction | |
| CN214464354U (en) | Drainage, slag discharge, exhaust, blowout prevention and dust prevention device for multi-stage gas extraction drilling orifice | |
| CN113123802A (en) | Tunnel inverted arch virtual slag mechanized cleaning method | |
| CN110439573B (en) | Tunnel mobile dredging and flushing device and method | |
| CN208742056U (en) | A kind of double grid sewage disposal apparatus of alternative expression | |
| CN214464199U (en) | Take alarming function's rich water stratum shield to construct dregs collection device | |
| CN217518618U (en) | Drilling blowout prevention and dust removal device | |
| CN108286435B (en) | Filtering stone collecting device and method for slurry shield slurry collecting system | |
| CN212003253U (en) | Gas drainage drilling compressed air drainage connection structure | |
| CN213836479U (en) | Coal mine electromechanical equipment for coal mining | |
| CN212898301U (en) | Based on perforating device for highway engineering | |
| CN113482714B (en) | Sewage-cleaning and shunting system for large-counter-slope construction of long-distance high-permeability tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210122 |