CN203420726U - Dedusting system of fully mechanized excavation face of rock roadway - Google Patents
Dedusting system of fully mechanized excavation face of rock roadway Download PDFInfo
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- CN203420726U CN203420726U CN201320456280.8U CN201320456280U CN203420726U CN 203420726 U CN203420726 U CN 203420726U CN 201320456280 U CN201320456280 U CN 201320456280U CN 203420726 U CN203420726 U CN 203420726U
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Abstract
The utility model provides a dedusting system of a fully mechanized excavation face of a rock roadway. The dedusting system of the fully mechanized excavation face of the rock roadway comprises a ventilation device and a dust remover, wherein the ventilation device comprises an air supplying channel, an air supplying draught fan, an air discharging channel and an air pumping draught fan, the air supplying fan is installed on the air supplying channel, an air outlet of the air supplying channel faces the fully mechanized excavation face, both the air pumping draught fan and the dust remover are installed on the air discharging channel, and an air inlet of the air discharging channel faces the fully mechanized excavation face. During construction of the fully mechanized excavation face of the rock roadway, air which contains a large amount of dust on a position near the fully mechanized excavation face of the rock roadway is dedusted and then discharged after being pumped into the air discharging channel through an exhaust fan, fresh air which is in other roadways is continuously conveyed to the position near the fully mechanized excavation face of the rock roadway through the air supplying draught fan at the same time, then dust concentration of a working face and dust concentration of return air of the working face are greatly reduced through pumping, purification and dedusting, a good dedusting effect is achieved, potential safety hazards are eliminated, the work environment is improved, and working efficiency is improved.
Description
Technical field
The utility model relates to coal mine dedusting technology, relates in particular to a kind of rock gangway fully mechanized workface dust pelletizing system.
Background technology
Stone head development machine is as the capital equipment of coal mine roadway driving, when tunnelling, can produce a large amount of dust, the operation of driving face is numerous and diverse, the place position that produces dust is changeable, fast development along with rock gangway experimentation, China's coal-mine dust pollution question is on the rise, and if fully mechanized workface is when only taking interior external spraying, driver locates dust concentration up to 300～1000mg/m
3, and respirable dust accounts for 30% left and right of full dust concentration, no matter is full dust concentration or the equal severe overweight of respirable dust concentration, and the serious consequence of bringing is increasing of coal industry pneumoconiosis number.
The dustproof problem of rock roadway in coal mine fully mechanized workface is the difficulties of logical anti-management always, because tunneling residing rock stratum, work plane meets cement, so a large amount of waters are dustproof, can worsen the operating environment of meeting head on, not only provide spoil and bring difficulty, more can cause fully-mechanized digging machine mire down in mud and affect safety in production.
Utility model content
The utility model provides a kind of rock gangway fully mechanized workface dust pelletizing system, for overcoming defect of the prior art, reaches dust removing effects.
The utility model provides a kind of rock gangway fully mechanized workface dust pelletizing system, and this dust pelletizing system comprises ventilation installation and deduster;
Described ventilation installation comprises air-supply passage, breeze fan, air exhaust passage and exhausting blower fan; Described breeze fan is arranged on described air-supply passage, and the air outlet of described air-supply passage is towards fully mechanized workface; Described exhausting blower fan and described deduster are installed on described air exhaust passage, and the air intake of described air exhaust passage is towards described fully mechanized workface.
Wherein, described breeze fan is arranged on described air-supply passage end, and the air intake of described air-supply passage is connected with the air outlet of described breeze fan.
Further, described exhausting assembling is at described air exhaust passage middle part, and described deduster is arranged on described air exhaust passage end, and the air outlet of described air exhaust passage is connected with described deduster.
Particularly, described deduster comprises casing and be located at least one wind power ganged sprayer in this casing, and described tank ends is provided with air intake and air outlet, and the air intake of described casing is connected with the air outlet of exhaust duct, the air outlet connection atmosphere of described casing; Described wind power ganged sprayer comprises spraying chamber and is located at least one nozzle on this spraying chamber, described spraying chamber be respectively equipped with for connect compressed-air actuated air inlet port with for being connected the water inlet at water source.
Wherein, in described casing, be provided with at least one Dust-proof screen window, described casing between the air intake of described casing and the air outlet of described casing is provided with at least one pedestal, in described pedestal, be provided with the chute with described screen edges adaptation, described Dust-proof screen window can insert in the chute of described pedestal from described casing one side.
Wherein, described casing side is provided with at least one for clearing up the clean-up port of dust.
Further, described bottom half is provided with sewage draining exit.
Further, the air intake of described casing and/or the air outlet of described casing are provided with filter screen.
The rock gangway fully mechanized workface dust pelletizing system that the utility model provides, in the construction of rock gangway fully mechanized workface, by exhaust blower by near the air suction air exhaust passage that contains a large amount of dust rock gangway fully mechanized workface and discharge after deduster carries out depositing dust, by ventilator, the fresh air in other tunnels is constantly transported near rock gangway fully mechanized workface in a steady stream simultaneously, by extracting out with purification depositing dust, process, greatly reduce the dust concentration of work plane and return air thereof, received good dust-laying effect, eliminated potential safety hazard, improved working environment, improved operating efficiency.
Accompanying drawing explanation
The structural representation of the dust pelletizing system that Fig. 1 a provides for the utility model embodiment;
The use state reference view of the dust pelletizing system that Fig. 1 b provides for the utility model embodiment;
The front view of the deduster in the dust pelletizing system that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the structural representation of Dust-proof screen window embodiment in deduster;
Fig. 6 is the scheme of installation of deduster;
Fig. 7 is the right view of Fig. 6.
The specific embodiment
As shown in Figure 1a, the utility model embodiment provides a kind of rock gangway fully mechanized workface dust pelletizing system, and this dust arrester comprises ventilation installation and deduster 1; Ventilation installation comprises air-supply passage 2, breeze fan 3, air exhaust passage 4 and exhausting blower fan 5; Breeze fan 3 is arranged on air-supply passage 2, and the air outlet of air-supply passage 2 is towards fully mechanized workface 6; Exhausting blower fan 5 and deduster 1 are installed on air exhaust passage 4, and the air intake of air exhaust passage 4 is towards fully mechanized workface 6.
The rock gangway fully mechanized workface dust pelletizing system that the real embodiment of the utility model provides, fresh air is pressed in air-supply passage 2 by breeze fan 3, and be admitted to fully mechanized workface 6 by air-supply passage 2, the dust-laden of fully mechanized workface 6 is distinguished and admirable to be drawn in air exhaust passage 4 under 5 effects of exhausting blower fan, finally by discharging after deduster 1 filtration and depositing dust, distinguished and admirable trend is referring to the arrow points in Fig. 1 a, in the present embodiment, breeze fan 3 is preferably mounted at the air intake end of supply air duct 2, also can be arranged on air-supply passage 2 middle parts, when air-supply passage 2 more in short-term, breeze fan 3 also can be arranged on the air opening end of air-supply passage 2, exhausting blower fan 5 is arranged on air exhaust passage 4 middle parts, also can be arranged on air intake end or the air outlet end of air exhaust passage 4, and deduster 1 is arranged on the air opening end of air exhaust passage 4.In the present embodiment, the concrete shape of air-supply passage 2 and air exhaust passage 4 can arrange according to the actual conditions of underworkings, at this, does not limit, and circular pipe or square pipe specifically can be selected in air channel, are arranged in tunnel.
Below in conjunction with concrete mine, the installation of dust pelletizing system and use are elaborated, as shown in Figure 1 b, mine adopts main shaft 7, auxiliary shaft 8 air intakes, ventilating shaft return air, blower fan is not shown in the figures at 1b, auxiliary shaft detour and assistant conveyance tunnel in distinguished and admirablely finally through ventilating shaft, discharge, in ventilating shaft, can establish interim main fan, interim main fan can be selected FBCDZ-8-No28 profile shaft stream convection rotary type ventilation fan, rated power is 2 * 450Kw, fully mechanized workface 6 is taked combination of forced and exhaust ventilation, wherein the breeze fan 3 of forced ventilation can select 2 * 15 types to axial flow rotary portable blower, open single-stage, the air-supply passage 2 of supporting air duct is selected Φ 800mm positive pressure wind pipe, the air outlet of positive pressure wind pipe apart from driving face 6 between 5～8 meters, the exhausting blower fan 5 of exhaust ventilation selects FBCDNo6.7/2 * 30 type pull-out type to axial flow rotary portable blower, open single-stage, the air exhaust passage 4 of the supporting air duct of suction side is selected the negative pressure skeleton air duct of Φ 1000mm, the air intake of negative pressure skeleton air duct apart from driving face 6 between 10～15 meters, the weary wind of extracting out is pressed into marshalling yard No. one by the pipeline 9 of Φ 800mm, finally by crossing after deduster 1 purifies, discharge.
The rock gangway fully mechanized workface dust pelletizing system that the utility model embodiment provides is greatly improved the air quality of work plane and return thereof, digging laneway becomes air intake from return air, high-power pull-out type portable blower is joined the forced portable blower of small-power, take and take out as main, extraction air quantity is 372～430m3/min, being pressed into air quantity is 196～262m3/min, air quantity>=168m3/min that air duct stack section tunnel is passed through, and (interior sump tunnelling rough section is 17.6m to meet the requirement that rock gangway wind speed is not less than 0.15m/s
2required airflow is>=159m3/min), forced air duct is directly fresh distinguished and admirable driver of roadheader one side of delivering to, and pull-out type air duct is arranged on opposite side, while not taking compound ventilation, near the respirable dust concentration that 5 meters of record driver of roadheader is 15.2～18.5mg/m
3, to take after compound ventilation, near respirable dust concentration driver is reduced to 2.3～3.1mg/m
3, dust reduction rate reaches more than 83.2%; Full dust concentration is by 23.6～25.2mg/m
3drop to 3.8～4.3mg/m
3, dust reduction rate reaches more than 82.9%, and the respirable dust concentration that all meets national industrial hygiene standard code is less than 3.5mg/m
3be less than 10mg/m with full dust concentration
3requirement; The air outlet of deduster 1 work plane is normal produce in the situation that, is 1.2～1.6mg/m at the respirable dust concentration recording apart from 5 meters of positions of deduster air outlet in distinguished and admirable
3, full dust concentration is 2.2～2.6mg/m
3, and after getting rid of deduster 1, the respirable dust concentration recording at exhausting blower fan 5 air outlets is 13.7～14.9mg/m
3, full dust concentration is 21.0～22.5mg/m
3, dust reduction rate reaches respectively more than 89.3% and 88.4%.
As the preferred version of above-described embodiment, for further increasing wind flow, breeze fan 3 is arranged on air-supply passage 2 ends, and the air intake of air-supply passage 2 is connected with the air outlet of breeze fan 3.Exhausting blower fan 5 is arranged on air exhaust passage 4 middle parts, and deduster 1 is arranged on air exhaust passage 4 ends, and the air outlet of air exhaust passage 4 is connected with deduster 1.
The specific embodiment as above-described embodiment, as shown in Fig. 2-7, deduster 1 comprises casing 11 and is located at least one wind power ganged sprayer 12 in this casing 11, casing 11 two ends are provided with air intake 10 and air outlet 20, the air intake 10 of casing is connected with the air outlet of exhaust duct 4, and the air outlet 20 of casing is communicated with atmosphere; Wind power ganged sprayer 12 comprises spraying chamber and is located at least one nozzle 30 on this spraying chamber, the chamber of spraying be respectively equipped with for connect compressed-air actuated air inlet port with for being connected the water inlet at water source.
The sectional dimension of casing is 1600mm * 1600mm, the wind power ganged sprayer 12 of per pass is provided with three nozzles 30, a shower nozzle 3 is all installed on each nozzle 30, the air inlet port in spraying chamber is connected with presses wind control valve, the water inlet in spraying chamber is provided with water control valve, by pressing wind control valve and water control valve to regulate the parameter of high-pressure blast and water, make shower nozzle spraying for reducing the dust laden air of the box house of flowing through and reach dust-laying effect.
In order further to improve the purifying and dedusting effect of deduster, in casing 11, be provided with at least one Dust-proof screen window 13, casing 11 between the air intake 10 of casing 11 and the air outlet 20 of casing 11 is provided with at least one pedestal 14, in pedestal 14, be provided with the chute suitable with Dust-proof screen window 13 edges, Dust-proof screen window 13 can insert in the chute of pedestal 14 from casing 11 1 sides.The present embodiment Zhong You tetra-road Dust-proof screen windows 13, are divided into two kinds of specifications, and Dust-proof screen window 13 interlaced arrangement of two kinds of specifications, for improving filter dirt effect.The handle 13c that Dust-proof screen window 13 has frame 13a, the filter screen 13b of bookbinding in frame 13a and is located at described frame 13a mono-side forms, and the chute in pedestal 14 and frame 13a are suitable.
For convenience of cleaning, casing 11 sides are provided with at least one for clearing up the clean-up port 15 of dust.Casing 11 bottoms are provided with sewage draining exit 16.Deduster has designed two cleaning passages 16, is mainly used to the rock dirt of cleaning deposition, and dust arrester has also designed two dust-laden outlets of sewer 17 and has been used for normal draining-off sewage.
For further increasing filter effect, the air intake 10 of casing 11 and/or the air outlet 20 of casing 11 are provided with filter screen.Filter screen is selected 18 * 16 order nylon window screenings, and filter screen adopts retort stand to fix, and handgrip has been installed, and is convenient to pull.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (8)
1. a rock gangway fully mechanized workface dust pelletizing system, is characterized in that, this dust pelletizing system comprises ventilation installation and deduster;
Described ventilation installation comprises air-supply passage, breeze fan, air exhaust passage and exhausting blower fan; Described breeze fan is arranged on described air-supply passage, and the air outlet of described air-supply passage is towards fully mechanized workface; Described exhausting blower fan and described deduster are installed on described air exhaust passage, and the air intake of described air exhaust passage is towards described fully mechanized workface.
2. rock gangway fully mechanized workface dust pelletizing system according to claim 1, is characterized in that, described breeze fan is arranged on described air-supply passage end, and the air intake of described air-supply passage is connected with the air outlet of described breeze fan.
3. rock gangway fully mechanized workface dust pelletizing system according to claim 1, it is characterized in that, described exhausting assembling is at described air exhaust passage middle part, and described deduster is arranged on described air exhaust passage end, and the air outlet of described air exhaust passage is connected with described deduster.
4. according to the arbitrary described rock gangway fully mechanized workface dust pelletizing system of claim 1-3, it is characterized in that, described deduster comprises casing and is located at least one wind power ganged sprayer in this casing, described tank ends is provided with air intake and air outlet, the air intake of described casing is connected with the air outlet of exhaust duct, and the air outlet of described casing is communicated with atmosphere; Described wind power ganged sprayer comprises spraying chamber and is located at least one nozzle on this spraying chamber, described spraying chamber be respectively equipped with for connect compressed-air actuated air inlet port with for being connected the water inlet at water source.
5. rock gangway fully mechanized workface dust pelletizing system according to claim 4, it is characterized in that, in described casing, be provided with at least one Dust-proof screen window, described casing between the air intake of described casing and the air outlet of described casing is provided with at least one pedestal, in described pedestal, be provided with the chute with described Dust-proof screen window edge adaptation, described Dust-proof screen window can insert in the chute of described pedestal from described casing one side.
6. rock gangway fully mechanized workface dust pelletizing system according to claim 5, is characterized in that, described casing side is provided with at least one for clearing up the clean-up port of dust.
7. rock gangway fully mechanized workface dust pelletizing system according to claim 6, is characterized in that, described bottom half is provided with sewage draining exit.
8. according to the arbitrary described rock gangway fully mechanized workface dust pelletizing system of claim 5-7, it is characterized in that, the air intake of described casing and/or the air outlet of described casing are provided with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456280.8U CN203420726U (en) | 2013-07-29 | 2013-07-29 | Dedusting system of fully mechanized excavation face of rock roadway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456280.8U CN203420726U (en) | 2013-07-29 | 2013-07-29 | Dedusting system of fully mechanized excavation face of rock roadway |
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| Publication Number | Publication Date |
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| CN203420726U true CN203420726U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320456280.8U Expired - Fee Related CN203420726U (en) | 2013-07-29 | 2013-07-29 | Dedusting system of fully mechanized excavation face of rock roadway |
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| CN (1) | CN203420726U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422880A (en) * | 2013-07-29 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Stone drift fully-mechanized excavating surface dust removing system |
| CN103670478A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Coal mine ventilation system |
| CN105298532A (en) * | 2015-11-02 | 2016-02-03 | 江西稀有金属钨业控股集团有限公司 | Dust-controllable stope electric rake roadway |
| CN106593509A (en) * | 2017-01-20 | 2017-04-26 | 中铁十二局集团第七工程有限公司 | Tunnel negative pressure ventilation system |
-
2013
- 2013-07-29 CN CN201320456280.8U patent/CN203420726U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422880A (en) * | 2013-07-29 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Stone drift fully-mechanized excavating surface dust removing system |
| CN103422880B (en) * | 2013-07-29 | 2016-08-10 | 淮南矿业(集团)有限责任公司 | Rock gangway fully mechanized workface dust pelletizing system |
| CN103670478A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Coal mine ventilation system |
| CN105298532A (en) * | 2015-11-02 | 2016-02-03 | 江西稀有金属钨业控股集团有限公司 | Dust-controllable stope electric rake roadway |
| CN106593509A (en) * | 2017-01-20 | 2017-04-26 | 中铁十二局集团第七工程有限公司 | Tunnel negative pressure ventilation system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20170729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |