CN104373124A - Dust preventing device of machine digging surface and dust preventing method - Google Patents
Dust preventing device of machine digging surface and dust preventing method Download PDFInfo
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- CN104373124A CN104373124A CN201410460863.7A CN201410460863A CN104373124A CN 104373124 A CN104373124 A CN 104373124A CN 201410460863 A CN201410460863 A CN 201410460863A CN 104373124 A CN104373124 A CN 104373124A
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- 239000000428 dust Substances 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005641 tunneling Effects 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000007921 spray Substances 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000000889 atomisation Methods 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 239000003245 coal Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000004806 packaging method and process Methods 0.000 claims description 20
- 238000000151 deposition Methods 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 14
- 238000010410 dusting Methods 0.000 claims description 13
- 238000013467 fragmentation Methods 0.000 claims description 12
- 238000006062 fragmentation reaction Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Prevention Of Fouling (AREA)
Abstract
The invention discloses a dust preventing device of a machine digging surface and a dust preventing method. The dust preventing device comprises a tunneling machine head spray and a crushing transfer system spray, wherein a wrapping type spray device is arranged at the back end of a tunneling machine head; the front end of the tunneling machine head is exposed outside the wrapping type spray device; the wrapping type spray device comprises an inner steel pipe and an outer steel pipe sleeving the tunneling machine head; and eight mixing type nozzles containing X-shaped diversion core wide-angle spiral openings are evenly arranged between the inner steel pipe and the outer steel pipe for forming a spherical dust reducing area wrapping a tunneling surface head. As for the dust generation of a crushing transfer system, a dust hood is arranged at the joint of a bridge type transfer machine and a belt conveyer outside a crusher, so as to control dust in an all-closed manner; on the other hand, the efficient dust capture is performed by all-aspect and multi-angle atomization nozzles; and in addition, more comprehensive dust preventing measures are formed on the machine digging surface by combining chemical dust removing technology with air curtain dust isolating technology, so that the dust concentration of the machine digging surface is reduced below 10 mg/m3, and the operation environment of workers is greatly improved.
Description
Technical field
The present invention relates to mine underground dustproof field, a kind of tunneling working face dust guard and dust-control method.
Background technology
From the sixties in last century, China introduced First development machine, China's coal-mine down-hole mechanical degree is more and more higher, and development machine obtains applying comparatively widely in China's coal-mine, particularly in recent years, popularizing fast of high-power development machine, accelerates the development of China's experimentation.Experimentation, while raising tunneling working face driving speed, also causes face dust concentration sharply to increase.Survey factually, tunneling working face when not taking any dust prevention mean dust concentration close to 1000mg/m
3, place, local dust concentration is up to 3000mg/m
3, and have the dust close to 55% to be respirable dust, seriously exceed the relevant regulations of national safety standard.High concentrate dust like this gently then reduces the labor productivity of miner, affect ore deposit well yield and benefit, heavy then cause miner to suffer from pneumoconiosis can not curing for a long time and dead, or cause dust explosion, cause great casualties and economic loss to endanger huge, bring serious threat to the safety in production in colliery and miner's physical and mental health.
At present, each mine main is for the high problem of tunneling working face dust concentration, although take the dust prevention and control measures such as such as development machine external spraying, dedusting fan dust suction, foam dust-removing, but effect is unsatisfactory, make to fail to be formed comparatively easy, practical Mine Integrated dust-control method at tunneling working face.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of tunneling working face dust guard and dust-control method, to improve depositing dust or dust-proof efficiency, improve the working environment of tunneling working face.
For solving the problems of the technologies described above, the present invention program comprises:
A kind of tunneling working face dust guard, it comprises driving head, wherein, driving back-end of machine head is provided with packaging type atomization mechanism, driving head front end dew is put at packaging type atomization mechanism outside, this packaging type atomization mechanism comprise be nested with driving head in steel pipe and outer steel pipe, high-pressure air source and water source is fed respectively in interior steel pipe and outer steel pipe, for atomizing de-dusting, eight revolve mouth mixing type nozzle containing X-shaped Water conservancy diversion core wide-angle is evenly arranged between interior steel pipe and outer steel pipe, the set-point of each mixing type nozzle and the angle of the interior steel pipe line of centres are 45 degree, the extension line of each mixing type nozzle arranged direction and the angle of interior steel pipe axis are 30 degree, multiple each mixing type nozzle is in atomize, formation can cover the spherical depositing dust region of tunneling working face.
Described tunneling working face dust guard, wherein, development machine is connected with for broken transfer system that is broken, that transport coal cinder, crushing engine outer setting in broken transfer system has dust-blocking cover, the charging aperture of crushing engine is furnished with multiple charging aperture nozzle, the discharging opening of crushing engine is furnished with multiple discharging opening nozzle, dust-blocking cover front end is furnished with multiple crushing engine nozzle, crushing engine is connected with a bridge conveyor, bridge conveyor is connected with a ribbon conveyer, the transfer point of bridge conveyor and ribbon conveyer junction is furnished with multiple transfer point nozzle.
Described tunneling working face dust guard, wherein, the nozzle diameter of above-mentioned charging aperture nozzle to be four spray pattern be bundle shape is the tangential centrifugal hybrid copper nozzle of 1.5mm, the nozzle diameter of above-mentioned crushing engine nozzle to be four spray pattern be solid cone shaped is the hybrid copper nozzle of vortex and centrifugal of 1.8mm, the nozzle diameter of above-mentioned discharging opening nozzle to be four spray pattern be umbrella shape is the tangential centrifugal copper nozzle of 1.3mm, the nozzle diameter of above-mentioned transfer point nozzle to be four spray pattern be solid cone shaped is the band converging transition vortex and centrifugal formula stainless steel nozzle of 2.0mm.
Described tunneling working face dust guard, wherein, driving head is arranged on the front portion of development machine, and development machine is provided with driver's cabin, the development machine between driver's cabin and driving head is provided with the air curtain machine for the formation of isolating air curtain.
Described tunneling working face dust guard, wherein, development machine rear portion is provided with telescopic belt, telescopic belt is provided with dust-proofing agent automatic adding device, dust-proofing agent automatic adding device can move with telescopic belt, dust-proofing agent automatic adding device is connected with external source by supply channel, and dust-proofing agent automatic adding device is connected with packaging type atomization mechanism by supply line.
Described tunneling working face dust guard, wherein, supply line is provided with booster pump.
Described tunneling working face dust guard, wherein, is provided with forced air duct in machine pick face, can provides sufficient air-flow, introduces a distinguished and admirable branch road to interior steel pipe, and have along interior steel pipe axis the circular air-out bar gap that a width is 5mm by this forced air duct.
A kind of dust-control method using described tunneling working face dust guard, it comprises the following steps: the multiple mixing type nozzles supplied water by outer steel pipe during driving head coal cutting spray water smoke, water smoke is that the angle being 30 degree with interior steel pipe axis angle sprays, in atomisation pressure and interior steel pipe under air pressure acting in conjunction, water smoke and meeting head on collides the active force of generation between rib and nozzle sprays the motive force formed, and water smoke is formed in driving head is wrapped in by spherical depositing dust region; Synchronous, air curtain machine ejects the air-flow vertical with tunneling head direct of travel and is formed and isolate air curtain, and the air circulation of head and driver's cabin is tunneled in obstruct; Dual depositing dust is carried out to tunneling head in isolation air curtain and spherical depositing dust region.
Described dust-control method, wherein, synchronous with above-mentioned steps, dust suppressant adds in spray dust prevention water by application dust suppressant automatic adding device, and atomizing de-dusting, chemical dedusting and air curtain dust-separation are combined; When coal petrography fragmentation is reprinted, charging aperture nozzle becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, coal petrography of prewetting; Crushing engine nozzle becomes 45 degree of angles to spray against coal petrography transporting direction with horizon, produce dirt trap fragmentation; Discharging opening nozzle is sprayed vertically downward, carries out atomizing de-dusting to the small part dust that front does not trap; Transfer point nozzle becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, form negative pressure in dust-blocking cover inside, small part loss is gone out dust outside dust-blocking cover again in inhalation mask, traps.
A kind of tunneling working face dust guard provided by the invention and dust-control method, dirt is produced for tunneling machine cutting, packaging type atomization mechanism is adopted to form spherical depositing dust region, driving head is wrapped up, chemical dustfall's agent can also be added in packaging type atomization mechanism, cut is produced dirt and is closed in driver front by the air curtain adopting air curtain to produce, and atomizing de-dusting, chemical dedusting and air curtain dust-separation are combined; Dirt is produced for broken transfer system, implement the totally-enclosed control dirt of dust-blocking cover on the one hand, prevent fragmentation, reprint and produce the random disperse of dirt, being aided with pulverizing nozzle efficiently catches dirt on the other hand, define comparatively comprehensively synthesis dust prevention measure, not only safe ready at tunneling working face like this, and effectively reduce the high concentrate dust in underground coal mine tunneling working face manufacturing process, improve dustfall efficiency, make the dust concentration of tunneling working face be reduced to 10mg/m
3below, the working environment of staff is significantly improved.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of tunneling working face dust guard in the present invention;
Fig. 2 is the plan structure schematic diagram of tunneling working face dust guard in the present invention;
Fig. 3 is the forward sight structural representation of tunneling working face dust guard in the present invention;
Fig. 4 is the structural representation of air curtain machine in the present invention;
Fig. 5 is the structural representation of booster pump in the present invention;
Fig. 6 is the structural representation of dust-proofing agent automatic adding device in the present invention;
Fig. 7 is the structural representation of packaging type atomization mechanism in the present invention;
Fig. 8 is the structural representation of broken transfer system in the present invention.
Detailed description of the invention
The invention provides a kind of tunneling working face dust guard and dust-control method, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of tunneling working face dust guard and dust-control method, as shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 7, it comprises driving head 1, wherein, driving head 1 rear end is provided with packaging type atomization mechanism 2, and driving head 1 front end dew is put at packaging type atomization mechanism 2 outside, and this packaging type atomization mechanism 2 comprises and is nested with steel pipe 3 and outer steel pipe 4 on driving head, high-pressure air source and water source is fed, for atomizing de-dusting respectively in interior steel pipe 3 and outer steel pipe 4.Be evenly arranged multiple mixing type nozzle 5 revolving mouth containing X-shaped Water conservancy diversion core wide-angle between interior steel pipe 3 and outer steel pipe 4, mixing type nozzle 5 can adopt the mixing type nozzle revolving mouth containing X-shaped Water conservancy diversion core wide-angle that diameter is 2.4mm, spray pattern is solid circular cone.The set-point of each mixing type nozzle 5 and the angle of interior steel pipe 3 line of centres are 45 degree, the extension line of each mixing type nozzle 5 arranged direction and the angle of interior steel pipe 3 axis are 30 degree, each mixing type nozzle 5 is all in atomize, forms the spherical depositing dust region that can cover tunneling working face.As shown in Figure 7, can arrange eight mixing type nozzles between interior steel pipe 3 and outer steel pipe 4, wherein five are positioned at top, and three are positioned at bottom, make water smoke under gravity, catch dust from top to bottom.
In another preferred embodiment of the present invention, development machine 6 with for fragmentation, the broken transfer system of transport coal cinder is connected, crushing engine 14 outer setting in broken transfer system has dust-blocking cover 15, the charging aperture of crushing engine 14 is furnished with multiple charging aperture nozzle 16, the discharging opening of crushing engine 14 is furnished with multiple discharging opening nozzle 17, dust-blocking cover 15 front end is furnished with multiple crushing engine nozzle 18, crushing engine 14 is connected with a bridge conveyor 19, bridge conveyor 19 is connected with a ribbon conveyer 20, bridge conveyor 19 and the transfer point of ribbon conveyer 20 junction are furnished with multiple transfer point nozzle 21.Dust-blocking cover 15 realizes producing the totally-enclosed of dirt to fragmentation, is trapped with crushing engine nozzle 18 by charging aperture nozzle 16, discharging opening nozzle 17 to the dust be closed in crushing engine 14.Transfer point between bridge conveyor 19 and ribbon conveyer 20 also can arrange transfer point dust-blocking cover 22, for the product dirt of closed transfer point, and adopts transfer point nozzle 21 to trap the dust be closed in transfer point.
More particularly, the nozzle diameter of above-mentioned charging aperture nozzle 16 to be four spray pattern be bundle shape is the tangential centrifugal hybrid copper nozzle of 1.5mm, the nozzle diameter of above-mentioned crushing engine nozzle 18 to be four spray pattern be solid cone shaped is the hybrid copper nozzle of vortex and centrifugal of 1.8mm, the nozzle diameter of above-mentioned discharging opening 17 nozzle to be four spray pattern be umbrella shape is the tangential centrifugal copper nozzle of 1.3mm, and the nozzle diameter of above-mentioned transfer point nozzle 21 to be four spray pattern be solid cone shaped is the band converging transition vortex and centrifugal formula stainless steel nozzle of 2.0mm.
Further, as shown in Figures 1 and 2, driving head 1 is arranged on the front portion of development machine 6, development machine 6 is provided with driver's cabin 7, development machine 6 between driver's cabin 7 and driving head 1 is provided with the air curtain machine 8 for the formation of isolating air curtain, while the spherical depositing dust region of formation, air curtain machine 8 produces isolation air curtain, and then improves depositing dust or control dirt effect.
In another preferred embodiment of the present invention, as shown in Figure 1, development machine 6 rear portion is provided with telescopic belt 9, telescopic belt 9 is provided with dust-proofing agent automatic adding device 10, dust-proofing agent automatic adding device 10 can move with telescopic belt 9, dust-proofing agent automatic adding device 10 is connected with external source by supply channel 11, and dust-proofing agent automatic adding device 10 is connected with packaging type atomization mechanism 2 by supply line.And supply line is provided with booster pump 12, increase flow and the initial velocity of packaging type atomization mechanism 2 spraying, and then make the collision adhesive capacity between water smoke and dust stronger, increase atomization space, and then expand the area coverage in spherical depositing dust region, improve dustfall efficiency.
Further, forced air duct 13 is provided with in machine pick face, a distinguished and admirable branch road is introduced to interior steel pipe 3 by this forced air duct 13, sufficient air-flow can be provided, and have along interior steel pipe 3 axis the circular air-out bar gap that a width is 5mm, distinguished and admirable by after the ejection of bar seam, can effectively increase droplet spray regime.
Present invention also offers a kind of dust-control method of described tunneling working face dust guard, it comprises the following steps: the multiple mixing type nozzles 5 supplied water by outer steel pipe 4 during driving head 1 coal cutting spray water smoke, water smoke is that the angle being 30 degree with interior steel pipe 3 axis angle sprays, in atomisation pressure and interior steel pipe under air pressure acting in conjunction, water smoke and meeting head on collides the active force of generation between rib and nozzle sprays the motive force formed, and water smoke is formed in driving head 1 is wrapped in by spherical depositing dust region; Synchronous, air curtain machine 8 ejects the air-flow vertical with tunneling head 1 direct of travel and is formed and isolate air curtain, intercepts the air circulation of tunneling head 1 and driver's cabin 7; Dual depositing dust is carried out to tunneling head in isolation air curtain and spherical depositing dust region.
Further, synchronous with above-mentioned steps, dust suppressant adds in spray dust prevention water by application dust suppressant automatic adding device, and atomizing de-dusting, chemical dedusting and air curtain dust-separation are combined.When coal petrography fragmentation is reprinted, charging aperture nozzle 16 becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, coal petrography of prewetting; Crushing engine nozzle 18 becomes 45 degree of angles to spray against coal petrography transporting direction with horizon, produce dirt trap fragmentation; Discharging opening nozzle 17 is sprayed vertically downward, carries out atomizing de-dusting to the small part dust that front does not trap; Transfer point nozzle 21 becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, form negative pressure in transfer point dust-blocking cover 22 inside, small part loss is gone out dust outside dust-blocking cover again in inhalation mask, traps.Comparatively comprehensively synthesis dust prevention measure is defined at tunneling working face, not only safe ready, and the high concentrate dust effectively reduced in underground coal mine tunneling working face manufacturing process, improve dustfall efficiency, make the dust concentration of tunneling working face be reduced to 10mg/m
3below, the working environment of staff is significantly improved.
It is more specifically:
Tunneling working face meets head on to adopt atomizing de-dusting, and with chemical dedusting use in conjunction, on development machine 6, front is provided with packaging type atomization mechanism 2, rear is provided with airborne booster pump 12, for packaging type atomization mechanism 2 provides constant pressure, when development machine 6 coal cutting, airborne booster pump 12 is opened with packaging type atomization mechanism 2 simultaneously, sedimentation seizure is carried out to the dust that driving head 1 cut produces, near driving head 140m-60m, be provided with dust-proofing agent automatic adding device 10 at development machine 6 rear simultaneously, by quantitative for spray for dust suppression agent, be added continuously in supply line, thus it is large effectively to solve common dust-proof water surface tension, not easily condense, a difficult problem for sedimentation dust, further raising atomizing de-dusting efficiency,
Under the dust-separation of closed air curtain, on development machine 6, driver's cabin 7 front, under the prerequisite not stopping driver's sight line, is provided with air curtain machine 8.Link with development machine 6, form full face air curtain together in driver's cabin 7 front, head 1 space and driver's cabin 7 and rear space will be tunneled and isolate, reduce driving head 1 cut further and produce spreading to personnel's operating location of dust.
And dust suppressant adds in spray dust prevention water by synchronous applications dust suppressant automatic adding device, atomizing de-dusting, chemical dedusting and air curtain dust-separation are combined; When coal petrography fragmentation is reprinted, charging aperture nozzle 16 becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, coal petrography of prewetting; Crushing engine nozzle 18 becomes 45 degree of angles to spray against coal petrography transporting direction with horizon, produce dirt trap fragmentation; Discharging opening nozzle 17 is sprayed vertically downward, carries out atomizing de-dusting to the small part dust that front does not trap; Transfer point nozzle 21 becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, form negative pressure in dust-blocking cover 15 inside, small part loss is gone out dust outside dust-blocking cover again in inhalation mask, traps.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this manual; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this manual, protection of the present invention ought to be subject to.
Claims (10)
1. a tunneling working face dust guard, it comprises the spraying of driving head and the spraying of broken transfer system, wherein, driving back-end of machine head is provided with packaging type atomization mechanism, driving head front end dew is put at packaging type atomization mechanism outside, this packaging type atomization mechanism comprise be nested with driving head in steel pipe and outer steel pipe, eight that are evenly arranged between interior steel pipe and outer steel pipe revolve the mixing type nozzle of mouth containing X-shaped Water conservancy diversion core wide-angle, the spherical depositing dust region that parcel development end is met head on can be formed, dirt is produced for broken transfer system, outside at crushing engine on the one hand, the totally-enclosed control dirt of dust-blocking cover is arranged in bridge conveyor and belt conveyer junction, be aided with in all directions on the other hand, multi-angle pulverizing nozzle efficiently catches dirt, in addition, in conjunction with chemical dedusting, air curtain dust-separation technology, comparatively comprehensively synthesis dust prevention measure is defined at tunneling working face, the dust concentration making machine dig face is reduced to 10mg/m
3below, the operating environment of staff is significantly improved.
2. tunneling working face dust guard according to claim 1, it is characterized in that, eight revolve mouth mixing type nozzle containing X-shaped Water conservancy diversion core wide-angle is evenly arranged between interior steel pipe and outer steel pipe, the set-point of each mixing type nozzle and the angle of the interior steel pipe line of centres are 45 degree, the extension line of each mixing type nozzle arranged direction and the angle of interior steel pipe axis are 30 degree, adopt packaging type atomization mechanism to form spherical depositing dust region, driving face is met head on to wrap up.
3. tunneling working face dust guard according to claim 1, it is characterized in that, development machine with for fragmentation, the broken transfer system of transport coal cinder is connected, crushing engine outer setting in broken transfer system has dust-blocking cover, the charging aperture of crushing engine is furnished with multiple charging aperture nozzle, the discharging opening of crushing engine is furnished with multiple discharging opening nozzle, dust-blocking cover front end is furnished with multiple crushing engine nozzle, crushing engine is connected with a bridge conveyor, bridge conveyor is connected with a ribbon conveyer, the transfer point of bridge conveyor and ribbon conveyer junction is furnished with multiple transfer point nozzle.
4. tunneling working face dust guard according to claim 3, it is characterized in that, the nozzle diameter of above-mentioned charging aperture nozzle to be four spray pattern be bundle shape is the tangential centrifugal hybrid copper nozzle of 1.5mm, the nozzle diameter of above-mentioned crushing engine nozzle to be four spray pattern be solid cone shaped is the hybrid copper nozzle of vortex and centrifugal of 1.8mm, the nozzle diameter of above-mentioned discharging opening nozzle to be four spray pattern be umbrella shape is the tangential centrifugal copper nozzle of 1.3mm, the nozzle diameter of above-mentioned transfer point nozzle to be four spray pattern be solid cone shaped is the band converging transition vortex and centrifugal formula stainless steel nozzle of 2.0mm.
5. tunneling working face dust guard according to claim 1, it is characterized in that, driving head is arranged on the front portion of development machine, and development machine is provided with driver's cabin, the development machine between driver's cabin and driving head is provided with the air curtain machine for the formation of isolating air curtain.
6. tunneling working face dust guard according to claim 1, it is characterized in that, development machine rear portion is provided with telescopic belt, telescopic belt is provided with dust-proofing agent automatic adding device, dust-proofing agent automatic adding device can move with telescopic belt, dust-proofing agent automatic adding device is connected with external source by supply channel, and dust-proofing agent automatic adding device is connected with packaging type atomization mechanism by supply line.
7. tunneling working face dust guard according to claim 6, is characterized in that, supply line is provided with booster pump.
8. tunneling working face dust guard according to claim 1, it is characterized in that, be provided with forced air duct in machine pick face, introduce a distinguished and admirable branch road to interior steel pipe by this forced air duct, and have along interior steel pipe axis the circular air-out bar gap that a width is 5mm.
9. one kind uses the dust-control method of tunneling working face dust guard as claimed in claim 1, it comprises the following steps: the multiple mixing type nozzles supplied water by outer steel pipe during driving head coal cutting spray water smoke, water smoke is that the angle being 30 degree with interior steel pipe axis angle sprays, in atomisation pressure and interior steel pipe under air pressure acting in conjunction, water smoke and meeting head on collides the active force of generation between rib and nozzle sprays the motive force formed, and water smoke is formed in driving head is wrapped in by spherical depositing dust region; Synchronous, air curtain machine ejects the air-flow vertical with tunneling head direct of travel and is formed and isolate air curtain, and the air circulation of head and driver's cabin is tunneled in obstruct; Dual depositing dust is carried out to tunneling head in isolation air curtain and spherical depositing dust region.
10. dust-control method according to claim 9, is characterized in that, synchronous with above-mentioned steps, and dust suppressant adds in spray dust prevention water by application dust suppressant automatic adding device, and atomizing de-dusting, chemical dedusting and air curtain dust-separation are combined; When coal petrography fragmentation is reprinted, charging aperture nozzle becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, coal petrography of prewetting; Crushing engine nozzle becomes 45 degree of angles to spray against coal petrography transporting direction with horizon, produce dirt trap fragmentation; Discharging opening nozzle is sprayed vertically downward, carries out atomizing de-dusting to the small part dust that front does not trap; Transfer point nozzle becomes 45 degree of angles to spray along coal petrography transporting direction with horizon, form negative pressure in dust-blocking cover inside, small part loss is gone out dust outside dust-blocking cover again in inhalation mask, traps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410460863.7A CN104373124B (en) | 2014-09-11 | 2014-09-11 | A kind of tunneling working face dust guard and dust-control method |
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| CN201410460863.7A CN104373124B (en) | 2014-09-11 | 2014-09-11 | A kind of tunneling working face dust guard and dust-control method |
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| CN104373124B CN104373124B (en) | 2016-08-17 |
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| CN105233597A (en) * | 2015-09-28 | 2016-01-13 | 华中科技大学 | Mine dust removing apparatus and mine dust removing method |
| CN105973331A (en) * | 2016-07-01 | 2016-09-28 | 无锡雨德智能物联网科技有限公司 | Water meter with water mist clearing function |
| CN106422607A (en) * | 2016-10-25 | 2017-02-22 | 山西中永通机电设备制造有限公司 | Device and method for removing dust for mining train loading station |
| CN107387152A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of fully mechanized workface ladder subzone of atomization dust pelletizing system |
| CN108361030A (en) * | 2018-02-02 | 2018-08-03 | 太原理工大学 | A kind of development machine annular package dust-arrest device |
| CN109798147A (en) * | 2019-01-09 | 2019-05-24 | 中国矿业大学 | A kind of vertical distributing procedure dust falling system of attal and method |
| CN111308046A (en) * | 2019-11-29 | 2020-06-19 | 南通仁隆科研仪器有限公司 | Loaded coal rock cutting dust production simulation experiment device |
| CN111389587A (en) * | 2020-02-13 | 2020-07-10 | 李飞 | Material crushing and dust removing device and crushing and dust removing method |
| CN111610127A (en) * | 2020-05-21 | 2020-09-01 | 山东科技大学 | Comprehensive dustproof test system for section-adjustable fully-mechanized roadway |
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| CN112065389A (en) * | 2020-09-16 | 2020-12-11 | 中国煤炭科工集团太原研究院有限公司 | Spraying system for edge coal mining complete equipment and coal mining machine |
| CN112324435A (en) * | 2020-12-15 | 2021-02-05 | 中煤第五建设有限公司 | Spraying interlocking device of heading face heading machine |
| CN113374475A (en) * | 2021-06-28 | 2021-09-10 | 中国铁建重工集团股份有限公司 | Exploring, digging, supporting and transporting integrated machine |
| CN113374475B (en) * | 2021-06-28 | 2024-04-23 | 中国铁建重工集团股份有限公司 | Dig over fortune all-in-one |
| CN114809961A (en) * | 2022-04-06 | 2022-07-29 | 安徽理工大学 | Embedded drilling noise reduction and dust removal device beneficial to crushing coal rock wall and operation method |
| CN114809961B (en) * | 2022-04-06 | 2023-11-21 | 安徽理工大学 | Embedded drilling noise reduction and dust removal device beneficial to breaking coal rock wall and operation method |
| CN117052391A (en) * | 2023-09-04 | 2023-11-14 | 山西高河能源有限公司 | Dust removal system for tunneling working face |
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