CN212167059U - Underground excavation working face purification system - Google Patents
Underground excavation working face purification system Download PDFInfo
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- CN212167059U CN212167059U CN202020607968.1U CN202020607968U CN212167059U CN 212167059 U CN212167059 U CN 212167059U CN 202020607968 U CN202020607968 U CN 202020607968U CN 212167059 U CN212167059 U CN 212167059U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
A purification system for an underground excavation working face is arranged in an underground excavation roadway and comprises a water curtain dust removal device, an air drying box, a dirty air processor (containing Hogatat particles), a draw-out type fan and a press-in type fan. The system utilizes the draw-out fan to carry out water curtain dust removal, air drying box drying and catalytic oxidation of CO into CO by the dirty air processor on the dirty air near the digging operation face dike head in sequence2And then drawing out. The dirty wind still contains CO with higher concentration after being processed, the processed dirty wind is pressed into the vicinity of the digging operation face by a press-in type fan and then is pumped out by a draw-out type fan, thus forming circulation, repeating for many times, and converting CO into CO as much as possible2. The system can be used for carrying out dust fall and CO purification on the excavation working face on site, realizes circulation or partial circulation ventilation and can effectively improve the working face environment.
Description
Technical Field
The utility model relates to an environmental treatment after the roadway blasting, concretely relates to dig operation face clean system in pit.
Background
The underground excavation working face is generally a single-head roadway, the ventilation is poor, toxic and harmful gas (mainly CO) generated by blasting is difficult to discharge, the working environment is poor, and the safety of operating personnel is seriously endangered; moreover, the dust and the blast fume generated by blasting are discharged for a long time, and the production efficiency and the bench effect are greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an underground mining operation face clean system, it can solve one-end tunnel and long distance tunnel ventilation problem, improves the mining operation face environment to above-mentioned prior art is not enough.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a kind of DH to dig the operation surface clean system, fix to dig the tunnel in the well, characterized by, this system includes water curtain dust-collecting equipment, air drying cabinet, foul air processor, draw-out type blower and press-in type blower; the water curtain dust removing device is arranged near the digging operation face dike, the mouth end of the air inlet cylinder of the draw-out fan is close to the water curtain dust removing device, and the air inlet cylinder is sequentially connected with the air drying box and the dirty air processor, so that the dirty air near the digging operation face dike is sucked into the air inlet cylinder after being subjected to water curtain dust removal by the draw-out fan, and then is dried by the air drying box and is catalyzed and oxidized by the dirty air processor into CO (carbon monoxide)2Then drawing out; the press-in type fan is arranged near the draw-out type fan, and the outlet cylinder nozzle of the press-in type fan is positioned between the dike digging working face head and the water curtain dust removing device, so that the dirty air pumped out by the draw-out type fan is pressed into the position near the dike digging working face head by the press-in type fan and then is pumped out by the draw-out type fan for circulation treatment.
The waste wind processor is internally provided with a device for catalyzing and oxidizing CO into CO2The hopcalite particle of (1).
Preferably, a plurality of particle boxes 33 are arranged in the dirty air processor, and hopcalite particles are arranged in the dirty air processor; the dirty wind processor also comprises a box body, the particle boxes are clamped on a bottom plate of the box body, and a plurality of through holes with the diameter smaller than that of the hopcalite particles are arranged on the particle boxes, so that catalytic oxidation of CO into CO by the hopcalite particles is facilitated2。
Preferably, the box body of the dirty air processor is provided with a vent on one of the opposite side plates in the direction of the dirty air, and the vent is connected with the air inlet cylinder of the draw-out fan, so that the dirty air enters the dirty air processor after being dried by the air drying box and is drawn out by the draw-out fan through catalytic oxidation.
Preferably, the box of the above-mentioned dirty wind treater is provided with a movable upper cover, and when hopcalite particles are invalid, the movable upper cover can be opened, the particle box can be taken out, and hopcalite particles in the particle box can be replaced.
The air drying box is internally provided with a drying agent to remove moisture in the dirty air from the water curtain dust removal device.
The system utilizes the extraction type fan to extract the dirty air near the dike front of the excavation working face through the water curtain dust removal device, the air drying box and the dirty air processor in sequence, and in the process, part of CO in the dirty air is converted into CO through catalytic oxidation reaction2. The dirty wind still contains CO with higher concentration after being processed, the processed dirty wind is pressed into the vicinity of the digging operation face by a press-in type fan and then is pumped out by a draw-out type fan, thus forming circulation, repeating for many times, and converting CO into CO as much as possible2。
The system can carry out CO purification and dust fall on the excavation working face on site, realizes circulation or partial circulation ventilation, economically and effectively improves the working face environment, and is an ideal underground excavation working face purification system. The system has the advantages of simple structure, convenience for underground installation, economy, wide applicability and the like.
Drawings
Fig. 1 is a system diagram of the present invention.
Fig. 2 is a side view of the dirty air processor of the present invention.
Fig. 3 is a plan view of the upper cover of the dirty air processor of the present invention after being opened.
Figure 4 is a side view of the particle cassette of the present invention.
Detailed Description
Referring to fig. 1, the utility model relates to an excavation working face clean system in pit sets up in the excavation tunnel in the pit, and it includes water curtain dust collector 1, air drying cabinet 2, foul air treater 3, pull-out type fan 4 and forced fan 5, wherein:
the water curtain dust removal device 1 is a conventional device, is arranged near a dike working face dike head 6, can form water curtain isolation, effectively limits dust near the dike working face dike head 6, and reduces dust when dirty air near the dike working face dike head 6 passes through the water curtain dust removal device 1;
the air drying box 2, which is a conventional device, is provided on the side of the water curtain dust removing apparatus 1 remote from the dike digging working face tip 6. The air drying box 2 is internally provided with a drying agent which can remove moisture in the dirty air;
the dirty air processor 3 is arranged on one side of the air drying box 2 far away from the water curtain dust removal device 1. Referring to fig. 2 to 4, the dirty air processor 3 includes a box 31, a ventilation opening 32 is respectively disposed on a side plate of the box 31 opposite to the dirty air direction, a plurality of particle boxes 33 are disposed in the box 31, the particle boxes 33 are clamped on a bottom plate of the box 31, hopcalite particles (not shown) are disposed in the particle boxes 33, a plurality of through holes 331 are disposed on the particle boxes 33, and the diameter of the through holes 331 is smaller than that of the hopcalite particles, so that the hopcalite particles can catalyze and oxidize CO into CO2The box body 31 is also provided with a movable upper cover 34, when the hopcalite particles fail, the movable upper cover 34 can be opened, the particle box 33 can be taken out, and the hopcalite particles can be replaced;
the mouth end of the air inlet cylinder 41 of the extraction type fan 4 is positioned between the water curtain dust removal device 1 and the air drying box 2 and is close to the water curtain dust removal device 1, and the air drying box 2 and the foul air processor 3 are sequentially connected to the air inlet cylinder 41 of the extraction type fan 4, so that the extraction type fan 4 can be used for sucking the foul air near the digging operation face head 6 into the air drying box 2 through the air inlet cylinder 41 after water curtain dust removal is carried out on the foul air by the water curtain dust removal device 1, the moisture in the foul air is removed by the drying agent in the air drying box 2, the dry foul air with certain wind speed enters the foul air processor 3, and partial CO in the foul air is catalytically oxidized into CO under the action of Hogatard particles2Then the treated dirty air is pumped out by a draw-out fan;
the press-in type fan 5 is arranged on one side of the draw-out type fan 4 far away from the dirty air processor 3, and the tube mouth of the outlet tube 51 of the press-in type fan 5 is positioned between the digging working face dike head 6 and the water curtain dust removing device 1. Because the dirty air still contains CO with higher concentration after being processed by the water curtain dust removing device 1, the air drying box 2 and the dirty air processor 3, the processed dirty air can be pressed into the vicinity of the dike digging operation surface head 6 by the press-in type fan 5, then the dirty air is sucked into the air inlet cylinder for drying and catalytic oxidation treatment after being subjected to dust removal by the pull-out type fan 4 (please refer to the arrow direction in figure 1, the dirty air is sucked out after being dried and catalytic oxidation treatment) (see the arrow direction in figure 1 for the dirty airWind circulation) is formed, and the circulation is repeated for a plurality of times, so that CO is converted into CO as much as possible2。
When the system is used, after the excavation working face is blasted, the draw-out type fan and the press-in type fan are simultaneously turned on, the system starts to operate, dirty air dust removal and CO purification are carried out, an operator can use a CO tester to measure the CO concentration, and when the CO content generated by roadway blasting is reduced to below 24ppm, the system can be turned off after the safety is determined, and subsequent operation is started.
Claims (8)
1. A purification system for an underground excavation working face is arranged in an underground excavation roadway and is characterized by comprising a water curtain dust removal device (1), an air drying box (2), a dirty air processor (3), a draw-out fan (4) and a press-in fan (5); the water curtain dust removal device (1) is arranged near a digging operation face dike head (6), the cylinder opening end of an air inlet cylinder of the draw-out fan (4) is close to the water curtain dust removal device (1), and the air inlet cylinder (41) is sequentially connected with the air drying box (2) and the dirty air processor (3) so as to utilize the draw-out fan (4) to suck dirty air near the digging operation face dike head (6) into the air inlet cylinder after the water curtain dust removal of the water curtain dust removal device (1), and then the dirty air is dried by the air drying box (2) and the dirty air processor (3) is catalyzed and oxidized into CO to be CO2Then drawing out; the press-in type fan (5) is arranged near the extraction type fan (4), and the tube mouth of the outlet tube (51) of the press-in type fan (5) is positioned between the digging working face dike head (6) and the water curtain dust removing device (1), so that the dirty wind extracted by the extraction type fan (4) is pressed near the digging working face dike head (6) by the press-in type fan (5) and then extracted by the extraction type fan (4) for circulation processing.
2. A downhole extraction face cleaning system according to claim 1, wherein the dirty air processor (3) is built-in with catalytic oxidation of CO to CO2The hopcalite particle of (1).
3. A downhole extraction face cleaning system according to claim 2, wherein the dirty air processor (3) is provided with a plurality of particle boxes (33) for arranging hopcalite particles.
4. A downhole extraction face cleaning system according to claim 3, wherein the particle cassette (33) is provided with a plurality of through holes (331), the diameter of the through holes (331) being smaller than the hopcalite particles.
5. A downhole extraction face cleaning system according to claim 4, wherein the dirty air handler (3) comprises a housing (31), the particle cassette (33) being clamped to a floor of the housing (31).
6. A downhole extraction face purification system according to claim 5, wherein the housing (31) of the dirty air processor (3) is provided with ventilation openings (32) on an opposite side plate in the direction of dirty air, and the ventilation openings (32) are connected with the air inlet drum (41) of the extraction fan (4).
7. A downhole extraction face cleaning system according to claim 5, wherein the housing (31) of the dirty air handler (3) is provided with a removable upper cover (34).
8. A downhole extraction face cleaning system according to claim 1, wherein the air drying box (2) is built in with a desiccant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607968.1U CN212167059U (en) | 2020-04-22 | 2020-04-22 | Underground excavation working face purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607968.1U CN212167059U (en) | 2020-04-22 | 2020-04-22 | Underground excavation working face purification system |
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| Publication Number | Publication Date |
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| CN212167059U true CN212167059U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020607968.1U Active CN212167059U (en) | 2020-04-22 | 2020-04-22 | Underground excavation working face purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356917A (en) * | 2021-07-19 | 2021-09-07 | 陕西冶金设计研究院有限公司 | Air return device and air return method for long-distance single-head tunneling roadway |
-
2020
- 2020-04-22 CN CN202020607968.1U patent/CN212167059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356917A (en) * | 2021-07-19 | 2021-09-07 | 陕西冶金设计研究院有限公司 | Air return device and air return method for long-distance single-head tunneling roadway |
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