CN103422880A - Stone drift fully-mechanized excavating surface dust removing system - Google Patents
Stone drift fully-mechanized excavating surface dust removing system Download PDFInfo
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- CN103422880A CN103422880A CN2013103228299A CN201310322829A CN103422880A CN 103422880 A CN103422880 A CN 103422880A CN 2013103228299 A CN2013103228299 A CN 2013103228299A CN 201310322829 A CN201310322829 A CN 201310322829A CN 103422880 A CN103422880 A CN 103422880A
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Abstract
The invention provides a stone drift fully-mechanized excavating surface dust removing system. The dust removing system comprises a ventilation device and dust remover. The ventilation device comprises an air supply channel, an air supply fan, an air exhausting channel and a drawing fan. The air supply fan is installed on the air supply channel; an air outlet of the air supply channel faces a fully-mechanized excavating surface; both the drawing fan and the dust remover are installed on the air exhausting channel; an air inlet of the air exhausting channel faces the fully-mechanized excavating surface. In the construction process of the fully-mechanized excavating surface, air containing a large amount of dust near the fully-mechanized excavating surface is drawn to the interior of the air exhausting channel by an exhaust fan, falls through the dust remover and is discharged; meanwhile, fresh air in other drifts can be continuously conveyed to positions near the fully-mechanized excavating surface through an air feeder, extraction, purification and dust fall treatment is conducted on the fresh air, dust concentration of the fully-mechanized excavating surface and dust concentration of returned air of the fully-mechanized excavating surface are greatly reduced, good dust fall effect is achieved, potential safety hazards are eliminated, and the working environment and working efficiency are improved.
Description
Technical field
The present invention relates to the coal mine dedusting technology, relate 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, can produce a large amount of dust when tunnelling, the operation of driving face is numerous and diverse, the place position that produces dust is changeable, fast development along with the rock gangway experimentation, the China's coal-mine dust pollution question is on the rise, and as fully mechanized workface, when only taking interior external spraying, the 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, can worsen the operating environment of meeting head on so a large amount of waters are dustproof, not only provide spoil and bring difficulty, more can cause fully-mechanized digging machine mire down in mud and affect safety in production.
Summary of the invention
The invention provides a kind of rock gangway fully mechanized workface dust pelletizing system, for overcoming defect of the prior art, reach dust removing effects.
The invention provides a kind of rock gangway fully mechanized workface dust pelletizing system, 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 at least one wind power ganged sprayer be located 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, and the air outlet of described casing is communicated with atmosphere; Described wind power ganged sprayer comprises the 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, be provided with at least one Dust-proof screen window in described casing, described casing between the air intake of described casing and the air outlet of described casing is provided with at least one pedestal, be provided with the chute with described screen edges adaptation in described pedestal, 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 outlet of the air intake of described casing and/or described casing is provided with filter screen.
Rock gangway fully mechanized workface dust pelletizing system provided by the invention, 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 the rock gangway fully mechanized workface and discharge after deduster carries out depositing dust, by ventilator, the fresh air in other tunnels constantly is transported near the rock gangway fully mechanized workface in a steady stream simultaneously, by extracting out and purifying the depositing dust processing, greatly reduce the dust concentration of work plane and return air thereof, received dust-laying effect preferably, eliminated potential safety hazard, improved working environment, improved operating efficiency.
The accompanying drawing explanation
The structural representation of the dust pelletizing system that Fig. 1 a provides for the embodiment of the present invention;
The use state reference view of the dust pelletizing system that Fig. 1 b provides for the embodiment of the present invention;
The front view of the deduster in the dust pelletizing system that Fig. 2 provides for the embodiment of the present invention;
The top view that Fig. 3 is Fig. 2;
The left view that Fig. 4 is Fig. 2;
The structural representation that Fig. 5 is Dust-proof screen window embodiment in deduster;
The scheme of installation that Fig. 6 is deduster;
The right view that Fig. 7 is Fig. 6.
The specific embodiment
As shown in Figure 1a, the embodiment of the present invention 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 present invention 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 be arranged 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.
Installation and use below in conjunction with concrete mine to dust pelletizing system 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 the assistant conveyance tunnel in distinguished and admirablely finally through ventilating shaft, discharge, can establish interim main fan in ventilating shaft, 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 the 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 types to the 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 embodiment of the present invention provides is greatly improved the air quality of work plane and return thereof, digging laneway becomes air intake by return air, high-power pull-out type portable blower is joined the forced portable blower of small-power, take and take out as main, the 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 the 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 the pull-out type air duct is arranged on opposite side, while not taking compound ventilation, near the respirable dust concentration that 5 meters record driver of roadheader is 15.2～18.5mg/m
3, after taking compound ventilation, near the 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, produce in the situation that work plane is normal, and the respirable dust concentration recorded in distinguished and admirable in 5 meters positions of distance deduster air outlet is 1.2～1.6mg/m
3, full dust concentration is 2.2～2.6mg/m
3, and, after getting rid of deduster 1, the respirable dust concentration recorded 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 the 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 all is installed on each nozzle 30, the air inlet port in spraying chamber is connected with presses the wind control valve, the water inlet in spraying chamber is equipped with water control valve, by pressing wind control valve and water control valve to regulate the parameter of high-pressure blast and water, make the 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, be provided with at least one Dust-proof screen window 13 in casing 11, 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, be provided with the chute suitable with Dust-proof screen window 13 edges in pedestal 14, 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, be 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 chute and frame 13a in pedestal 14 are suitable.
For convenience of cleaning, casing 11 sides are provided with at least one clean-up port 15 for clearing up 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: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
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 the 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, be provided with at least one Dust-proof screen window in described casing, described casing between the air intake of described casing and the air outlet of described casing is provided with at least one pedestal, be provided with the chute with described Dust-proof screen window edge adaptation in described pedestal, 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.
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| CN201310322829.9A CN103422880B (en) | 2013-07-29 | 2013-07-29 | Rock gangway fully mechanized workface dust pelletizing system |
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| CN201310322829.9A CN103422880B (en) | 2013-07-29 | 2013-07-29 | Rock gangway fully mechanized workface dust pelletizing system |
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| CN103422880B CN103422880B (en) | 2016-08-10 |
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Cited By (6)
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| CN103670488A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Underground coal mine automatic dustproof spraying device |
| CN106110804A (en) * | 2016-05-25 | 2016-11-16 | 煤炭工业济南设计研究院有限公司 | A kind of haze processing system based on abandoned mine |
| CN106761878A (en) * | 2015-11-19 | 2017-05-31 | 成都九十度工业产品设计有限公司 | A kind of mine ventilation system |
| CN108612557A (en) * | 2018-04-25 | 2018-10-02 | 陆淑鑫 | A kind of tunnel Multifunction ventilated watering device |
| CN110242340A (en) * | 2019-07-16 | 2019-09-17 | 杭州创威实业股份有限公司 | A kind of depth tunnel oxygen rich gas circulatory system |
| CN114297794A (en) * | 2021-12-27 | 2022-04-08 | 太原理工大学 | Full-space intelligent comprehensive dust removal method for fully-mechanized excavation working face |
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| CN114297794A (en) * | 2021-12-27 | 2022-04-08 | 太原理工大学 | Full-space intelligent comprehensive dust removal method for fully-mechanized excavation working face |
| CN114297794B (en) * | 2021-12-27 | 2024-03-29 | 太原理工大学 | Comprehensive intelligent comprehensive dust removal method for full space of fully-mechanized coal mining face |
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