CN102966367B - Roadway construction equipment and dust removing device thereof - Google Patents
Roadway construction equipment and dust removing device thereof Download PDFInfo
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- CN102966367B CN102966367B CN201210483072.7A CN201210483072A CN102966367B CN 102966367 B CN102966367 B CN 102966367B CN 201210483072 A CN201210483072 A CN 201210483072A CN 102966367 B CN102966367 B CN 102966367B
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Abstract
The invention discloses roadway construction equipment and a dust removing device thereof. The dust removing device comprises a negative-pressure wind-cone, a dust removing fan, a dust remover, an air curtain mechanism and a positive-pressure wind-cone, wherein the air curtain mechanism is arranged on the roadway construction equipment or the roadway inner wall of roadway construction equipment operation; the air curtain mechanism is used for ejecting air current into a roadway to form a dust-blocking air curtain for isolating the control chamber of the roadway construction equipment from a tunneling work surface; the positive-pressure wind-cone is arranged on the roadway construction equipment or the roadway inner wall; the exhaust end of the positive-pressure wind-cone is arranged between the dust-blocking air curtain and the tunneling work surface; the exhaust end of the positive-pressure wind-cone points to the tunneling work surface; and the air sucking end of the negative-pressure wind-cone is arranged between the dust-blocking air curtain and the tunneling work surface. According to the dust removing device disclosed by the invention, air is supplied to the tunneling work surface through the positive-pressure wind-cone for blowing gas near the tunneling work surface away and lowering the gas concentration on the tunneling work surface, so that safety problems of explosion and the like possibly caused by the accumulation of gas on the tunneling work surface to a certain degree are avoided.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of tunnelling equipment and dust arrester thereof.
Background technology
Development machine is a kind of synthesization coal excavation apparatus integrating the functions such as cut, shipment, walking, because driving face mostly is the very low dry coal layer of water content, so development machine is in tunneling process, a large amount of dust can be produced in digging laneway, especially the Dust Capacity of rock gangway machine pick generation is larger, can up to more than 1000mg/m3, and the operator of development machine generally from dust source very close to, the physical and mental health of dust serious harm operator.
The patent No. is patent discloses " a kind of tunnelling machine enclosed type dust collection method and device " of CN200710015894, and the dust arrester in this patent comprises air curtain envelope dirt device, wind sucting tube, air duct and dedusting fan.Wherein, air curtain envelope dirt device is arranged on the front of development machine operator, comprises steam jet atomizer and air supply pipe; Wherein, steam jet atomizer is arranged on development machine, and arrange around the fuselage of development machine, be its supply air flow by the air supply pipe of down-hole, the air-flow that steam jet atomizer ejects forms air curtain dust-break in digging laneway, driving face and development machine operator are isolated, the dusty gas at driving face place, through air curtain and in the driving face place of development machine formation negative pressure, is carried out purified treatment by air duct suction dedusting fan by wind sucting tube.But there is following defect in this device: the dusty gas of driving face is only isolated in the front of operator by the air curtain in this device, if in tunnel gassy, because the ventilation at driving face place is undesirable, gas can be caused to assemble at driving face place, when gathering finite concentration, the accident such as easily set off an explosion, therefore there is serious potential safety hazard.
Summary of the invention
In view of this, the present invention proposes a kind of tunnelling equipment and dust arrester thereof, to reduce the gas density at driving face place, solves the safety problems such as the blast that may cause due to gas accumulation.
An aspect, the invention provides a kind of dust arrester, and for tunnelling equipment, this dust arrester comprises negative pressure air duct, dedusting fan and deduster, and this device also comprises air curtain mechanism and positive pressure wind pipe.Wherein, air curtain mechanism is arranged at the tunnel inwall of tunnelling equipment or tunnelling equipment availability, and air curtain mechanism is used for jet-stream wind in tunnel, with the dust-break air curtain of the operating room and driving face that form isolation tunnelling equipment; Positive pressure wind pipe is arranged at tunnelling equipment or tunnel inwall, and its exhaust end is placed between dust-break air curtain and driving face, and the exhaust end of positive pressure wind pipe points to driving face; The suction end of negative pressure air duct is placed between dust-break air curtain and driving face.
Further, in above-mentioned dust arrester, dust-break air curtain is parallel to the cross section in tunnel.
Further, in above-mentioned dust arrester, air curtain mechanism also comprises the airflow control mechanism for regulating air curtain mechanism jet-stream wind flow.
Further, in above-mentioned dust arrester, air curtain mechanism comprises air inlet pipe, nozzle carrier and multiple nozzle; Wherein, nozzle carrier, is dismountablely connected to the roof in tunnel or is fixedly connected on the fuselage periphery in tunnelling equipment cabinet front, is provided with the gas passage be connected with air inlet pipe in nozzle carrier; Multiple nozzle is fixedly connected on nozzle carrier, and each nozzle is all connected with the gas passage in nozzle carrier; Airflow control mechanism is flow control valve, is installed on air inlet pipe.
Further, in above-mentioned dust arrester, nozzle is flat nozzle.
Further, in above-mentioned dust arrester, air curtain mechanism comprises air inlet pipe and air jet pipe; Wherein, air jet pipe is dismountable to be connected to the roof in tunnel or to be fixedly connected on the fuselage periphery in tunnelling equipment cabinet front, and air jet pipe is connected with air inlet pipe, and the tube wall of air jet pipe axially offers ventilating hole channel along it; Airflow control mechanism is flow control valve, is installed on air inlet pipe.
Further, in above-mentioned dust arrester, on the panoramic table that the suction end of negative pressure air duct is arranged on tunnelling equipment or cutting units.
Further, above-mentioned dust arrester also comprises: dust shield, on the panoramic table being arranged on tunnelling equipment or cutting units, and is connected with the suction end of negative pressure air duct.
Dust arrester in the present invention by positive pressure wind pipe to driving face place air feed, gas near driving face is dispelled, dilute the gas density at this place, avoid gas and gather the safety problems such as the blast that to a certain degree may cause at driving face place.The air-flow that air curtain mechanism sprays forms dust-break air curtain between the operating room and driving face of development machine, dust is isolated near driving face, stop its regional diffusion to operator place, meanwhile, the dust that driving face place can produce by negative pressure air duct sucks purified treatment in deduster.
On the other hand, present invention also offers a kind of tunnelling equipment, this tunnelling equipment is provided with any one dust arrester above-mentioned.
Further, described tunnelling equipment is development machine or pick anchor all-in-one.
Because dust arrester has above-mentioned effect, so the tunnelling equipment with this dust arrester also has corresponding technique effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the elevation of dust arrester embodiment of the present invention;
Fig. 2 is the mounting structure schematic diagram of dust arrester embodiment of the present invention;
Fig. 3 is the another mounting structure schematic diagram of dust arrester embodiment of the present invention;
Description of reference numerals:
1 air curtain mechanism
11 nozzle carriers
2 positive pressure wind pipes
3 negative pressure air ducts
4 development machines
5 dust-break air curtains
6 dedusters
7 carrying vehicles
8 air duct supports
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
See Fig. 1 to Fig. 3, there is shown the preferred embodiment of dust arrester of the present invention, this device is used for tunnelling equipment, such as development machine 4, pick anchor all-in-one etc., and the present embodiment, to be applied to development machine 4, is described this dust arrester.As shown in the figure, this dust arrester at least comprises negative pressure air duct 3, dedusting motor and the deduster 6 and air curtain mechanism 1 and positive pressure wind pipe 2 that connect successively.
Wherein, air curtain mechanism 1 is arranged at the tunnel inwall of development machine 4 or development machine 4 operation, and air curtain mechanism 1 is for isolating the operating room of development machine 4 and the dust-break air curtain 5 of driving face to jet-stream wind in tunnel to be formed.Preferably, dust-break air curtain 5 is parallel to the cross section (hatched parts shown in Fig. 1) in tunnel.During concrete enforcement, air curtain mechanism 1 can be arranged on development machine, also can be arranged on the tunnel inwall of development machine 4 work, the air-flow that air curtain mechanism 1 sprays forms dust-break air curtain 5 between the operating room and driving face of development machine 4, is isolated in by dust near driving face, stops its regional diffusion to operator place, effectively improve the working environment of operator, in addition, because dust-break air curtain 5 is formed by air-flow, so do not affect operator's sight line.
Positive pressure wind pipe 2 is arranged on the inwall in the tunnel of development machine 4 operation, and its exhaust end is placed between dust-break air curtain 5 and driving face, and the exhaust end of positive pressure wind pipe 2 points to driving face.
Specifically, positive pressure wind pipe 2 can be arranged on the roof of digging laneway, its exhaust end is through after dust-break air curtain 5, to driving face place air feed, to dilute the gas that driving face place gushes out in time, prevent gas from assembling at driving face place, avoid the safety problems such as the blast that may cause due to gas accumulation.During concrete enforcement, by arranging the position of tunnel positive pressure wind pipe, dust-break air curtain, negative pressure air duct, recirculating air flow can be formed between driving face and dust-break air curtain 5, better to avoid gas accumulation.People from this area should be appreciated that the suction end of positive pressure wind pipe 2 should be connected with source of the gas, and in the present embodiment, source of the gas can be blower fan.
Negative pressure air duct 3 is arranged on development machine 4, and its suction end is placed between dust-break air curtain 5 and driving face; The exhaust end of negative pressure air duct 3, dedusting fan (not shown), deduster 6 connect successively, certainly, the exhaust end of negative pressure air duct 3, deduster 6, dedusting fan also can be made to connect successively.Specifically, negative pressure air duct 3 is arranged along the longitudinal axis of development machine 4, and the top of development machine is connected to by air duct support 8, the suction end of negative pressure air duct 3 is through dust-break air curtain 5, and form negative pressure by dedusting fan at driving face place, in time by the dusty gas negative suction air duct 3 at driving face place, and then carry out purified treatment in suction deduster 6.Preferably, on the panoramic table that the suction end of negative pressure air duct 3 is arranged on development machine 4 or cutting units, make negative pressure air duct 3 can with the turntable of development machine 4 or cutting units synchronous hunting, to strengthen pick-up performance.
In order to strengthen pick-up performance further, the present embodiment can also set up dust shield (not shown).On the panoramic table that dust shield is arranged on development machine or cutting units, and be connected with the inlet scoop of negative pressure air duct 3.During concrete enforcement, the cross sectional shape of dust shield can be tubaeform, rectangle etc.
Because negative pressure air duct 3 needs to be connected with the deduster 6 be arranged on after development machine 4, so general length is longer, during concrete enforcement, negative pressure air duct 3 can utilize air duct support 8 to be connected with development machine 4 and second conveyor, deduster 6 is arranged on the carrying vehicle 7 that can be synchronized with the movement with development machine 4, see Fig. 3, carrying vehicle 7 is connected to the afterbody of development machine 4, with development machine 4 synchronizing moving.
Can find out, positive pressure wind pipe 2 set up by dust arrester in the present embodiment, the exhaust end of positive pressure wind pipe 2 is arranged near driving face through dust-break air curtain 5, during development machine 4 operation, gas near driving face, to driving face place air feed, dispels by positive pressure wind pipe 2, avoids gas to assemble at driving face place, dilute the concentration of gas, avoid the safety problems such as the blast that gas accumulation may cause.Meanwhile, the dust that driving face place can produce by negative pressure air duct 3 sucks in deduster 6 and carries out purified treatment.
People from this area is to be understood that, the dust-break air curtain 5 formed due to air curtain mechanism 1 need gas that positive pressure wind pipe 2 is extruded and be mixed with work plane dust airflow-resistive in driving face region, it is not allowed to spread in the tunnel at operating room place, therefore the air velocity of dust-break air curtain 5 must reach certain value, meet matching relationship with press-in air velocity, just can reach the object of dust-break.For meeting this requirement, the air curtain mechanism 1 in the present embodiment can also set up airflow control mechanism (not shown).During concrete enforcement, this airflow control mechanism can be flow control mechanism, is arranged in the air inlet pipe in air curtain mechanism 1, and airflow control mechanism controls air curtain air velocity, presses general mood Flow Velocity to mate, enable the air curtain of formation reach dust-break effect with tunnel.
Continue the preferred structure see also show air curtain mechanism 1 in Fig. 1, figure again.As shown in the figure, air curtain mechanism 1 comprises air inlet pipe (not shown), nozzle carrier 11 and multiple nozzle 12.Wherein, the dismountable roof being connected to tunnel of nozzle carrier 11.The gas passage be connected with air inlet pipe is provided with in nozzle carrier 11; Multiple nozzle 12 is fixedly connected on the lower wall surface of nozzle carrier 11, and is connected with the gas passage in nozzle carrier 11.In the present embodiment, can according to drift section size, pressure air quantity and wind speed, for air curtain mechanism 1 configures the blower fan of corresponding air quantity.
The shape of nozzle carrier 11 and the shape of tunnel roof suitable, specifically, be the tunnel of dome-shaped for cross section, nozzle carrier 11 can be arc section; Be the tunnel of rectangle for cross section, nozzle carrier 11 can be strip, and the present embodiment take cross section as the tunnel of dome-shaped is example, is described the concrete structure of air curtain mechanism 1.As shown in Figure 1, nozzle carrier 11 is arced tube structure, such as steel pipe, can be welded by one or more snippets, and be connected on the tunnel roof in development machine driver's cabin front, air inlet pipe is connected with this nozzle carrier 11, the gas passage air feed in this nozzle carrier 11.Nozzle 12 can select flat nozzle, and nozzle 12 is arranged in the inwall of this nozzle carrier 11 along the axis direction of nozzle carrier 11, and is connected with the gas passage in this nozzle carrier 11.The air-flow that nozzle 12 sprays from top to bottom forms the hatched parts be full of in dust-break air curtain 5(Fig. 1 of whole drift section), the dust blocking driving face place spreads to operating room.Preferably, nozzle 12 is evenly arranged along the inwall of nozzle carrier 11.
In above-described embodiment, airflow control mechanism can select flow control valve, is arranged in the air inlet pipe of air curtain mechanism 1, with the air flow rate regulating air curtain mechanism 1 to spray, makes it meet and is pressed into the matching relationship of air quantity in tunnel, realizing the object of dust-break.
In the present embodiment, nozzle carrier 11 and removably connecting of tunnel roof are specifically as follows: on the arc outer wall of nozzle carrier 11, be fixedly connected with hook, this hook be articulated in be arranged at tunnel roof crossbeam on, certainly, also can adopt other the mode that removably connects, the present invention is not construed as limiting its concrete type of attachment.
In order to simplied system structure, also nozzle carrier 11 and nozzle 12 can be replaced with air jet pipe.Be specially, the dismountable roof being connected to tunnel of air jet pipe, air jet pipe is connected with air inlet pipe, and the tube wall of air jet pipe axially offers ventilating hole channel along it, ventilating hole channel is arranged down, to make the air-flow of ventilating hole channel Jet with downward flow direction, form the dust-break air curtain 5 being full of whole drift section, when specifically implementing, ventilating hole channel can run through whole air jet pipe along the axis of air jet pipe, also can arrange along the axially spaced-apart of air jet pipe.Air jet pipe can be identical with the connected mode of tunnel roof with the nozzle carrier 11 in above-described embodiment with the mode of removably connecting of tunnel roof, therefore do not repeat.
Before development machine 4 operation, first nozzle carrier 11 is articulated on the crossbeam of the tunnel roof being placed in development machine operating room front, then to supply gas in nozzle carrier 11, the air-flow that nozzle 12 sprays forms dust-break air curtain 5, development machine 4 starts operation, and slowly move forward along tunnel, when the operating room of development machine 4 is near dust-break air curtain 5, stop operation, hydraulic support, takes off nozzle carrier 11, moved forward, again be arranged on be positioned at development machine operating room front tunnel roof on, according to this mounting method, development machine carries out operation in whole tunnel.In the process of moving nozzle seat 11, also the exhaust port side of positive pressure wind pipe 2 is extended forward, the exhaust port side of positive pressure wind pipe 2 is remained between dust-break air curtain 5 and driving face always.
In the another embodiment that this law is bright, positive pressure wind pipe 2 also can be arranged on development machine 4, now, for the blower fan of positive pressure wind pipe 2 air feed also can be arranged on development machine 4, with development machine 4 synchronizing moving.
In another embodiment of the invention, air curtain mechanism 1 also can be fixedly connected on the periphery in the operating room front of development machine 4, the air-flow sprayed due to air curtain mechanism 1 needs to be full of whole drift section, so when air curtain mechanism 1 is connected on development machine 4, nozzle carrier 11 and the nozzle 12 of air curtain mechanism 1 need the periphery being arranged in machine body of boring machine, and the air-flow that nozzle 12 is sprayed is to external radiation in whole drift section.It should be noted that, the front in the present embodiment is the front in development machine 4 travel direction.
When air curtain mechanism 1 is connected to fuselage, because air curtain mechanism 1 can move with development machine 4, so in the process of development machine 4 operation, do not need to dismantle air curtain mechanism 1.
In the embodiment of the present invention, form dust-break air curtain 5 by air curtain mechanism 1 in development machine operator front end, the dust Control produced by driving face, in region of meeting head on, stops its long range diffusion in tunnel, realizes dust " zone isolation ".Arranged through dust-break air curtain 5 tunnel positive pressure wind pipe 2, the gas making press-in air-flow dilute driving face in time may to gush out, avoids gas accumulation; In addition, negative pressure air duct 3, equally through dust-break air curtain 5, forms negative pressure by dedusting fan at negative pressure air duct inlet scoop place, thus is sucked by dusty gas, forms recirculating air flow at air curtain area of isolation.Finally, discharge through deduster 6 purified treatment at the dusty gas of meeting head on to suck.
Present invention also offers a kind of tunnelling equipment, such as development machine, pick anchor all-in-one, this tunnelling equipment is provided with any one dust arrester above-mentioned, wherein, the specific implementation process of this dust arrester illustrates see above-mentioned, and the present invention does not repeat them here.
Because dust arrester has above-mentioned effect, so the tunnelling equipment with this dust arrester also has corresponding technique effect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a dust arrester, for tunnelling equipment, this device comprises negative pressure air duct, dedusting fan and deduster (6), and it is characterized in that, this device also comprises:
Air curtain mechanism (1), be arranged at the tunnel inwall of described tunnelling equipment or described tunnelling equipment availability, described air curtain mechanism (1) is for jet-stream wind in described tunnel, the operating room of described tunnelling equipment and the dust-break air curtain (5) of driving face is isolated to be formed
Positive pressure wind pipe (2), be arranged at described tunnelling equipment or described tunnel inwall, its exhaust end is placed between described dust-break air curtain (5) and described driving face, and the exhaust end of described positive pressure wind pipe (2) points to described driving face;
The suction end of described negative pressure air duct (3) is placed between described dust-break air curtain (5) and described driving face;
Described air curtain mechanism (1) also comprises the airflow control mechanism for regulating described air curtain mechanism (1) jet-stream wind flow.
2. dust arrester according to claim 1, is characterized in that, described dust-break air curtain (5) is parallel to the cross section in described tunnel.
3. dust arrester according to claim 1, is characterized in that, described air curtain mechanism (1) comprises air inlet pipe, nozzle carrier (11) and multiple nozzle (12); Wherein,
Described nozzle carrier (11), dismountablely be connected to the roof in described tunnel or be fixedly connected on the fuselage periphery in described tunnelling equipment cabinet front, in described nozzle carrier (11), being provided with the gas passage be connected with described air inlet pipe;
Described multiple nozzle (12) is fixedly connected on described nozzle carrier (11), and each described nozzle (12) is all connected with the gas passage in described nozzle carrier (11);
Described airflow control mechanism is flow control valve, is installed on described air inlet pipe.
4. dust arrester according to claim 3, is characterized in that, described nozzle (12) is flat nozzle.
5. dust arrester according to claim 1, is characterized in that, described air curtain mechanism (1) comprises air inlet pipe and air jet pipe; Wherein,
Described air jet pipe is dismountable to be connected to the roof in described tunnel or to be fixedly connected on the fuselage periphery in described tunnelling equipment cabinet front, and described air jet pipe is connected with described air inlet pipe, and the tube wall of described air jet pipe axially offers ventilating hole channel along it;
Described airflow control mechanism is flow control valve, is installed on described air inlet pipe.
6. dust arrester according to claim 1, is characterized in that, on the panoramic table that the suction end of described negative pressure air duct (3) is arranged on described tunnelling equipment or cutting units.
7. dust arrester according to claim 6, is characterized in that, described dust arrester also comprises:
Dust shield, on the panoramic table being arranged on described tunnelling equipment or cutting units, and is connected with the suction end of described negative pressure air duct (3).
8. a tunnelling equipment, is characterized in that, described tunnelling equipment is provided with the dust arrester according to any one of claim 1 to 7.
9. tunnelling equipment according to claim 8, is characterized in that, described tunnelling equipment is development machine or pick anchor all-in-one.
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| CN201210483072.7A CN102966367B (en) | 2012-11-23 | 2012-11-23 | Roadway construction equipment and dust removing device thereof |
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| CN201210483072.7A CN102966367B (en) | 2012-11-23 | 2012-11-23 | Roadway construction equipment and dust removing device thereof |
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| CN102966367B true CN102966367B (en) | 2015-07-08 |
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| CN105736029B (en) * | 2016-04-20 | 2018-02-27 | 孟钧 | A kind of stretching recover of negative pressure air duct |
| CN105735992B (en) * | 2016-04-20 | 2018-02-27 | 孟钧 | A kind of air duct reclaims stretching device |
| CN105697061B (en) * | 2016-04-20 | 2018-02-27 | 孟钧 | A kind of anti-tenesmus recovery stretching device of mining ventilating tunnel |
| CN107227966B (en) * | 2017-06-22 | 2023-10-10 | 天地科技股份有限公司 | Temporary support device for tunnel excavation |
| CN107559007A (en) * | 2017-09-04 | 2018-01-09 | 太重煤机有限公司 | A kind of digging laneway dust goes out except device |
| CN107387152B (en) * | 2017-09-12 | 2019-07-30 | 中国矿业大学 | A kind of fully mechanized workface ladder subzone of atomization dust pelletizing system |
| CN110454174B (en) * | 2019-09-18 | 2020-10-20 | 中国矿业大学 | Isolated tunneling machine and isolated extraction method for high gas mine |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
| CN111365058B (en) * | 2020-03-09 | 2022-02-15 | 内蒙古科技大学 | Self-moving type double-pressure ventilation device for strip mine |
| CN114033471A (en) * | 2021-10-27 | 2022-02-11 | 中国煤炭科工集团太原研究院有限公司 | Intelligent dust removal robot suitable for heading machine |
| CN114320431B (en) * | 2021-11-26 | 2023-12-15 | 煤炭科学技术研究院有限公司 | High-efficient dust-proof air curtain for tunneling surface |
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| JPH08218799A (en) * | 1995-02-09 | 1996-08-27 | Kajima Corp | Dust collector for tunnel construction work |
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