CN111255451B - Spraying dust-settling device for fully mechanized coal mining face and working method thereof - Google Patents
Spraying dust-settling device for fully mechanized coal mining face and working method thereof Download PDFInfo
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- CN111255451B CN111255451B CN202010235504.7A CN202010235504A CN111255451B CN 111255451 B CN111255451 B CN 111255451B CN 202010235504 A CN202010235504 A CN 202010235504A CN 111255451 B CN111255451 B CN 111255451B
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- 238000005065 mining Methods 0.000 title claims abstract description 38
- 238000005507 spraying Methods 0.000 title claims abstract description 38
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 7
- 239000007921 spray Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 35
- 239000003595 mist Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 230000001629 suppression Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 9
- 239000000779 smoke Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Spray Control Apparatus (AREA)
Abstract
The invention discloses a spraying dust-settling device for a fully mechanized coal mining face, which comprises a two-degree-of-freedom moving part, a holder and a spray head. The spraying dust-settling device for the fully-mechanized coal mining face provided by the invention realizes the spraying dust-settling of dust at any position in the whole range of the fully-mechanized coal mining face by using 1 spray head, and avoids the defects of staggered and disordered connecting pipelines, higher cost and the like caused by adopting a plurality of spray heads. The high-pressure air and the high-pressure water are in full contact, water mist with extremely small particle size is easily formed, the dust fall effect is improved, the size of the particle size of the water mist does not depend on the size of the nozzle opening any more, and the defect that the nozzle opening is easily blocked due to the excessively small nozzle opening is overcome.
Description
Technical Field
The invention relates to a spraying dust-settling device, in particular to a spraying dust-settling device for a large-range operation field.
Background
Coal is one of the most main energy sources in China at present, but safety accidents often occur due to complex working conditions and poor working environment of coal mines, and great loss is caused to the society and families.
Along with the increase of coal mining intensity, mining depth and improvement of mechanization degree, more and more dust is generated in the coal mining process, the existence of the dust seriously threatens the health of underground personnel and the safety of mines, in order to meet the requirements of safe mine and green mine construction, the dust in the underground coal mine needs to be effectively prevented and treated, and a fully mechanized mining face is a main source of dust generation and is bound to be a key point of dust prevention and treatment.
Combine the main equipment of adopting the working face to have the coal-winning machine, scraper conveyor, hydraulic support, combine to adopt the spraying dust fall mostly at present, because it is very big to combine to adopt working face span space, in order to guarantee to spray the dust fall to the dust in arbitrary space, all install a shower nozzle at every hydraulic support, the installation of a lot of shower nozzles, cause pipeline system unusual complicacy, the cost increase, the increase of pipe joint, cause easily and reveal, influence the effect of spraying dust fall, present nozzle does not all set up the water smoke chamber, rely on long and thin nozzle opening to form the water smoke alone, the granularity of water smoke is great, for the granularity that reduces water smoke, generally adopt less nozzle opening, less nozzle opening forms the jam easily in the use.
Disclosure of Invention
The invention provides a spraying dust-settling device for a fully mechanized mining face, which is simple in structure and not easy to block, and can realize omnibearing spraying dust-settling of the fully mechanized mining face.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a spraying dust-settling device for a fully mechanized coal mining face comprises a two-degree-of-freedom moving part, a holder and a spray head; the two-degree-of-freedom moving component comprises a left upright, a steel wire rope, a horizontal moving component, a right upright, a platform and a vertical moving component, wherein the left upright and the right upright are arranged in parallel, the steel wire rope is arranged between the left upright and the right upright, the horizontal moving component is arranged on the steel wire rope and can move along the steel wire rope, the vertical moving component is arranged on the horizontal moving component and can move in a direction vertical to the steel wire rope, and the platform is arranged on the vertical moving component; the holder comprises a pitching assembly and a horizontal rotating assembly, wherein the pitching assembly is mounted on the horizontal rotating assembly and can be pitched relative to the horizontal rotating assembly, and the horizontal rotating assembly is mounted on the platform and can rotate relative to the platform; the spray head is installed on the pitching assembly of the holder, and a high-pressure water nozzle connected with high-pressure water and a high-pressure air nozzle connected with high-pressure air are arranged on the spray head.
Further, the two-degree-of-freedom moving part further comprises tensioning wheel assemblies, the tensioning wheel assemblies are symmetrically mounted on the side faces of the upper portions and the lower portions of the left upright post and the right upright post, and the two steel wire ropes are respectively tensioned between the tensioning wheel assemblies on the upper portions and the lower portions of the left upright post and the right upright post.
Further, the horizontal moving component comprises a support plate, a driving mechanism and a guiding mechanism, the driving mechanism is installed on the upper portion of the support plate, the guiding mechanism is installed on the upper portion and the lower portion of the support plate, the support plate comprises a front panel and a rear panel which are arranged in parallel, the driving mechanism comprises a horizontal traction belt, a first belt pulley, a second belt pulley, a horizontal motor, a walking roller shaft and a walking roller, the walking roller shaft is rotatably installed on the support plate, the first belt pulley and the walking roller are installed on the walking roller shaft, the walking roller is located between the front panel and the rear panel, the horizontal motor is installed on the support plate, the second belt pulley is installed on an output shaft of the horizontal motor, and the first belt pulley and the second belt pulley are in transmission connection through the horizontal traction belt, the guide mechanism comprises a walking guide wheel shaft and a walking guide wheel, the walking guide wheel shaft is fixedly arranged on the supporting plate, the walking guide wheel is rotatably arranged on the walking guide wheel shaft and is positioned between the front panel and the rear panel, and the walking roller and the walking guide wheel frame are arranged on the steel wire rope.
Further, the vertical moving component comprises a roller component, a vertical traction belt, a vertical guide rod, a linear bearing and a vertical motor, the roller components comprise rollers, roller shafts and roller component brackets, the rollers are rotatably arranged on the roller component brackets through the roller shafts, the two vertical guide rods are arranged on the supporting plate of the horizontal moving component in parallel, the two roller components are respectively arranged on the horizontal moving component and positioned in the middle of the two ends of the two vertical guide rods, wherein the roller shaft of one roller component is in transmission connection with the vertical motor, the vertical traction belt is installed between the rollers of the two roller components, the linear bearings are installed on the two vertical guide rods, and the platform is installed on the linear bearings and is fixedly connected with the vertical traction belt.
Further, horizontal rotation subassembly include horizontal rotation motor, worm, slewing bearing and braced frame, the worm installation braced frame go up and with horizontal rotation motor transmission is connected, slewing bearing's inner circle fixed mounting be in on braced frame's the bottom surface, slewing bearing's outer lane processing has the worm wheel, worm wheel on slewing bearing's the outer lane with the worm meshes mutually, braced frame fixed mounting be in on the platform, the every single move unit mount be in on slewing bearing's the outer lane.
Furthermore, every single move subassembly is including installing flat board, shower nozzle installation flat board, every single move axle, first gear, second gear, steering wheel and shower nozzle fixation clamp, the every single move axle is installed install on the installation flat board, the one end of every single move axle is installed first gear, first gear with the meshing of second gear, the second gear with the steering wheel transmission is connected, the shower nozzle installation flat board is fixed the intermediate position of every single move axle, the shower nozzle fixation clamp is installed on the shower nozzle installation flat board, the installation flat board is installed on the horizontal rotation subassembly, the shower nozzle is fixed in the shower nozzle fixation clamp.
Further, the nozzle comprises a nozzle head, a sealing ring and a nozzle seat, the nozzle head, the sealing ring and the nozzle seat are connected together through screws, the sealing ring is located between the nozzle head and the nozzle seat, the front end of the nozzle head is provided with a plurality of nozzle openings, the rear end of the nozzle head is a water mist cavity, and the nozzle seat is provided with the high-pressure water nozzle and the high-pressure air nozzle.
Further, the tensioning wheel assembly comprises an extension spring, a tensioning wheel mounting frame, a tensioning wheel shaft and a tensioning wheel, wherein a long hole groove is formed in the tensioning wheel mounting frame, two ends of the tensioning wheel shaft are slidably arranged in the long hole groove, the tensioning wheel is mounted on the tensioning wheel shaft, and the extension spring is arranged between the tensioning wheel shaft and the tensioning wheel mounting frame.
The invention also provides a working method of the spraying dust-settling device for the fully mechanized coal mining face, which comprises the following steps:
the spray head sprays water mist under the action of high-pressure water and high-pressure air, and the adjustment of the particle size and the water mist strength of the water mist can be realized by controlling the water inflow of the high-pressure water and the air inflow of the high-pressure air;
secondly, when the horizontal moving component moves along the steel wire rope, the horizontal moving component drives the vertical moving component, the platform and the holder to move, so that the spray head is driven to move along the steel wire rope, and the spray dust suppression at any position in the horizontal direction on the fully mechanized coal mining face is realized;
thirdly, when the vertical moving component moves along the direction vertical to the steel wire rope, the platform and the holder can be driven to move, so that the spray head is driven to move in the direction vertical to the steel wire rope, and the spray dust settling at any position in the vertical direction of the fully mechanized coal mining face is realized;
fourthly, the horizontal rotating component can drive the pitching component to rotate through rotating action, so that the spray head is driven to rotate, the spraying direction of the spray head is changed, and multi-directional spraying dust suppression at any position in the fully mechanized mining working face is realized;
fifthly, the pitching motion of the pitching assembly can drive the spray head to do pitching motion as well, the spraying angle of the spray head is changed, and omnibearing spraying dust suppression at any position in the fully mechanized mining working face is realized.
Compared with the prior art, the invention has the following beneficial effects:
1. the spraying dust fall of dust at any position in the whole range of the fully mechanized mining face is realized by using 1 spray head, and the defects of staggered and disordered connecting pipelines, high cost and the like caused by adopting a plurality of spray heads are avoided.
2. Use 1 shower nozzle, avoided the increase of pipeline joint, significantly reduced reveals, practiced thrift water consumption and gas consumption, improve the effect of spraying dust fall simultaneously by a wide margin.
3. The invention installs the spray head on the pan-tilt, the pitching angle and the horizontal rotation angle of the spray head can be adjusted in the spraying process, and the spraying dust fall range of the spray head is enlarged.
4. The inside water smoke chamber of shower nozzle makes highly-compressed air and water under high pressure fully contact, forms the water smoke of minimum granularity easily, has improved dust fall effect, and the size of the granularity of water smoke no longer relies on the size of nozzle opening, has avoided the shortcoming that the undersize nozzle opening leads to the nozzle opening to block up easily.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a two-degree-of-freedom moving part according to an embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at B;
FIG. 5 is a schematic view of a horizontal movement assembly according to an embodiment of the present invention;
FIG. 6 is a front view of a horizontal movement assembly in an embodiment of the present invention;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is a rear view of the horizontal migration assembly in an embodiment of the present invention;
FIG. 9 is a schematic diagram of a support plate structure according to an embodiment of the present invention;
FIG. 10 is a schematic view of a vertical motion assembly according to an embodiment of the present invention;
FIG. 11 is a schematic view of a tension wheel assembly in an embodiment of the present invention;
FIG. 12 is a schematic view of a tensioner mounting bracket configuration in an embodiment of the present invention;
FIG. 13 is a schematic structural diagram of a roller assembly according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a pan/tilt head according to an embodiment of the present invention;
FIG. 15 is a schematic structural diagram of a pitch assembly in an embodiment of the present invention;
FIG. 16 is a schematic view of a horizontal rotation assembly according to an embodiment of the present invention;
FIG. 17 is a top view of a horizontal rotation assembly in an embodiment of the present invention;
FIG. 18 is a view A-A of FIG. 17;
FIG. 19 is a view B-B of FIG. 18;
FIG. 20 is a schematic view of a showerhead according to an embodiment of the present invention;
FIG. 21 is a front elevational view, in full section, of a sprinkler structure in accordance with an embodiment of the present invention;
FIG. 22 is a left side view of a showerhead in an embodiment of the invention;
wherein, 1, two-degree-of-freedom moving part; 2. a holder; 3. a spray head;
101. a left upright post; 102. a tension wheel assembly; 103. a wire rope; 104. a horizontal movement assembly; 105. a right upright post; 106. a platform; 107. a vertical movement assembly;
1071. a T-shaped polished rod mounting seat; 1072. a roller assembly; 1073. a vertical traction belt; 1074. a vertical guide bar; 1075. a linear bearing; 1076. a vertical motor;
1021. an extension spring; 1022. a tension wheel mounting bracket; 1023. a spring hook is buckled; 1024. a tension pulley shaft; 1025. a tension wheel;
1022.1, elongated slots;
1072.1, rollers; 1072.2, a roller shaft 1072.3, a roller assembly bracket;
1041. a support plate; 1042. a horizontal traction belt; 1043.1, a first pulley; 1043.2, a second pulley; 1044. a walking guide wheel shaft; 1045. a traveling guide wheel; 1046. a horizontal motor; 1047. a traveling roller shaft; 1048. a walking roller; 1041.1, a front panel; 1041.2, a rear panel; 1041.3, an intermediate tank; 1041.4, rectangular holes; 1041.5, mounting holes of walking roller shafts; 1041.6, a walking guide wheel shaft mounting hole;
21. a pitch assembly; 23. a horizontal rotation assembly;
211. installing a flat plate; 212. a pedestal bearing; 213. a flat plate is arranged on the spray head; 214. a pitch axis; 215.1, a first gear; 215.2, second gear; 216. a steering engine; 217. a steering engine mounting rack; 218. a nozzle fixing clamp;
231. a horizontal rotation motor; 232. a left bearing seat 233, a right bearing seat 234, a worm; 235. a slew bearing; 236. a support frame; 238. a flat bond; 239. a cylindrical roller bearing;
31. a nozzle head; 32. a seal ring 33, a nozzle holder; 311. a water mist cavity 312 and a nozzle opening; 331. high-pressure water nozzle, 332 and high-pressure air nozzle.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the spraying and dust settling device for the fully mechanized coal mining face of the present invention includes a two-degree-of-freedom moving component 1, a pan-tilt 2 and a nozzle 3, wherein the pan-tilt 2 can drive the nozzle 3 to rotate horizontally and move in pitch, the pan-tilt 2 is mounted on the platform 106 of the two-degree-of-freedom moving component 1, and the two-degree-of-freedom moving component 1 can drive the pan-tilt 2 to move in the horizontal direction and the vertical direction, so as to achieve spraying and dust settling at different positions of the fully mechanized coal mining face.
As shown in fig. 3, the two-degree-of-freedom moving part 1 includes a left column 101, a wire rope 103, a horizontal moving assembly 104, a right column 105, a platform 106, and a vertical moving assembly 107, the left column 101 and the right column 105 are disposed in parallel, the wire rope 103 is disposed between the left column 101 and the right column 105, the left column 101, the right column 105, and the wire rope 103 form a supporting frame of the two-degree-of-freedom moving part 1, the horizontal moving assembly 104 is disposed on the wire rope 103 and is movable along the wire rope 103, the vertical moving assembly 107 is mounted on the horizontal moving assembly 104 and is movable in a direction perpendicular to the wire rope 103, and the platform 106 is mounted on the vertical moving assembly 107.
As shown in fig. 14, the pan/tilt head 2 includes a pitching assembly 21 and a horizontal rotating assembly 23, wherein the pitching assembly 21 is mounted on the horizontal rotating assembly 23 to be capable of pitching motion relative to the horizontal rotating assembly 23, and the horizontal rotating assembly 23 is mounted on the platform 106 to be capable of rotating motion relative to the platform 106.
As shown in fig. 20, the nozzle 3 is mounted on the pitching assembly 21 of the pan/tilt head 2, and the nozzle 3 is provided with a high pressure water nozzle 331 connected to high pressure water and a high pressure air nozzle 332 connected to high pressure air.
As shown in fig. 3 and 4, the two-degree-of-freedom moving unit 1 further includes tension pulley assemblies 102, the tension pulley assemblies 102 are symmetrically mounted on the upper and lower side surfaces of the left and right columns 101 and 105, and the two wire ropes 103 are respectively tensioned between the tension pulley assemblies 102 on the upper and lower sides of the left and right columns 101 and 105.
As shown in fig. 5 to 9, the horizontal moving assembly 104 includes a support plate 1041, a driving mechanism and a guiding mechanism, the driving mechanism is installed on the upper portion of the support plate 1041, the guiding mechanism is installed on the upper portion and the lower portion of the support plate 1041, the support plate 1041 includes a front plate 1041.1 and a rear plate 1041.2 which are arranged in parallel, the driving mechanism includes a horizontal traction belt 1042, a first belt pulley 1043.1, a second belt pulley 1043.2, a horizontal motor 1046, a walking roller shaft 1047 and a walking roller 1048, the walking roller shaft 1047 passes through the walking roller shaft installation holes 1041.5 of the front plate 1041.1 and the rear plate 1041.2 on the upper portion of the support plate 1041 and is rotatably installed on the support plate 1041, the walking roller shaft 1047 and the walking roller shaft installation hole 1041.5 are in clearance fit, the first belt pulley 1043.1 and the walking roller 1048 are installed on the walking roller shaft 1047, the walking roller 1048 and the walking roller shaft 1047 are circumferentially fixed by a key, and is located in a middle slot 1041.3 between the front panel 1041.1 and the rear panel 1041.2, the horizontal motor 1046 passes through a rectangular hole 1041.4 on the front panel 1041.1, and is fixedly mounted on the rear panel 1041.2 of the support plate 1041, the second pulley 1043.2 is mounted on the output shaft of the horizontal motor 1046 through a key, the first pulley 1043.1 and the second pulley 1043.2 are in transmission connection through the horizontal traction belt 1042, the guiding mechanism includes a walking guide wheel shaft 1044 and a walking guide wheel 1045, the walking guide wheel shaft 1044 is fixedly mounted on the support plate 1041, the walking guide wheel shaft 1044 passes through walking guide wheel shaft mounting holes 1041.6 of the upper and lower front panels 1041.1 and the rear panel 1041.2 of the support plate 1041 respectively, the walking guide wheel shaft 1044 is in interference fit with the walking guide wheel shaft mounting holes 1041.6, and the walking guide wheel 1045 is rotatably mounted on the walking guide wheel shaft 1044, and is positioned in a middle groove 1041.3 between the front panel 1041.1 and the rear panel 1041.2, and the traveling roller 1048 and the traveling guide wheel 1045 are erected on the steel wire rope 103.
When the horizontal motor 1046 rotates, the first belt pulley 1043.1 installed on the output shaft of the horizontal motor 1046 is driven to rotate, then the horizontal traction belt 1042 drives the second belt pulley 1043.2 installed on the walking roller shaft 1047 to rotate, the rotation of the second belt pulley 1043.2 drives the walking roller shaft 1047 to rotate, and the rotation of the walking roller shaft 1047 drives the rotation of the walking roller 1048. The rotation of the walking rollers 1048 and the guiding of the walking guide wheels 1045 realize that the horizontal moving assembly 104 can move on the steel wire rope 103 in the horizontal direction.
As shown in fig. 10 and 13, the vertical moving assembly 107 includes a roller assembly 1072, a vertical traction belt 1073, a vertical guide rod 1074, a linear bearing 1075 and a vertical motor 1076, the roller assembly 1072 includes a roller 1072.1, a roller shaft 1072.2 and a roller assembly support 1072.3, the roller 1072.1 is rotatably mounted on the roller assembly support 1072.3 through the roller shaft 1072.2, the two vertical guide rods 1074 are parallelly mounted on the support plate 1041 of the horizontal moving assembly 104 through a T-shaped optical lever mounting seat 1071, the two roller assemblies 1072 are respectively mounted at the upper and lower ends of the support plate 1041 of the horizontal moving assembly 104 and located at the middle position of the two ends of the two vertical guide rods 1074, wherein the roller shaft 1072.2 of one roller assembly 1072 is in transmission connection with the vertical motor 1076, the vertical traction belt 1073 is mounted between the rollers 1072.1 of the two roller assemblies 1072, two all install on the perpendicular guide bar 1074 linear bearing 1075, the platform 106 install on linear bearing 1075 and with perpendicular traction belt 1073 fixed connection, perpendicular motor 1076 passes through the motor installing support and installs the lower extreme at backup pad 1041, the output shaft of perpendicular motor 1076 passes through the shaft coupling and installs at backup pad 1041 lower extreme the roller shaft 1072.2 of roller assembly 1072 is connected. When the vertical motor 1076 rotates, the roller shaft 1072.2 of the roller assembly 1072 mounted at the lower end of the support plate 1041 is driven to rotate, the rotation of the roller shaft 1072.2 drives the roller 1072.1 mounted thereon to rotate, thereby driving the vertical traction belt 1073 to rotate, and the rotation of the vertical traction belt 1073 drives the platform 106 fixedly connected thereto to move up and down along the vertical guide bar 1074.
As shown in fig. 16 to 19, the horizontal rotation assembly 23 includes a horizontal rotation motor 231, a worm 234, a slew bearing 235 and a support frame 236, the worm 234 is fixedly installed on the supporting frame 236 through a left bearing seat 232 and a right bearing seat 233 and is in transmission connection with the horizontal rotation motor 231, cylindrical roller bearings 239 are arranged between the worm 234 and the left bearing seat 232 and the right bearing seat 233, the inner race of the slew bearing 235 is fixedly installed on the bottom surface of the support frame 236, the outer ring of the slewing bearing 235 is processed with a worm wheel, the worm wheel on the outer ring of the slewing bearing 235 is meshed with the worm 234, the support frame 236 is fixedly mounted to the platform 106, the pitch assembly 21 is mounted to the outer race of the slew bearing 235, the horizontal rotation motor 231 is fixedly installed on the left bearing 232, and an output shaft of the horizontal rotation motor 231 is circumferentially and fixedly connected with the worm 234 through a flat key 238.
When the horizontal rotation motor 231 rotates, the worm 234 is rotated, the worm 234 rotates to drive the outer ring of the slewing bearing 235 to rotate horizontally, and the outer ring of the slewing bearing 235 rotates horizontally to drive the pitch assembly 21 mounted thereon to rotate horizontally.
As shown in fig. 15, the pitching assembly 21 includes a mounting plate 211, a nozzle mounting plate 213, a pitching shaft 214, a first gear 215.1, a second gear 215.2, a steering gear 216 and a nozzle fixing clip 218, the pitching shaft 214 is mounted on the mounting plate 211 through a bearing 212 with a seat, one end of the pitching shaft 214 is mounted with the first gear 215.1, the first gear 215.1 is engaged with the second gear 215.2, the second gear 215.2 is in transmission connection with the steering gear 216, the steering gear 216 is mounted on the mounting plate 211 through a steering gear mounting bracket 217, an output shaft of the steering gear 216 is mounted with the second gear 215.2, a transmission ratio between the first gear 215.1 and the second gear 215.2 is 1:1, the nozzle mounting plate 213 is fixed at a middle position of the pitching shaft 214, the nozzle fixing bracket 218 is mounted on the nozzle mounting plate 213, the mounting plate 211 is mounted on the horizontal rotating member 23, and the shower head 3 is fixed in the shower head fixing clip 218.
When the steering engine 216 swings, the pitch shaft 214 and the nozzle mounting plate 213 fixedly mounted on the pitch shaft 214 are driven to pitch through a gear mechanism, and the nozzle 3 mounted on the nozzle mounting plate 213 is driven to pitch by the pitch of the nozzle mounting plate 213.
As shown in fig. 20 to 22, the nozzle 3 includes a nozzle head 31, a sealing ring 32 and a nozzle holder 33, the nozzle head 31, the sealing ring 32 and the nozzle holder 33 are connected together by screws, the sealing ring 32 is located between the nozzle head 31 and the nozzle holder 33, the front end of the nozzle head 31 has a plurality of nozzle openings 312, the rear end of the nozzle head 31 is a water mist chamber 311, and the nozzle holder 33 is provided with the high pressure water connector 331 and the high pressure air connector 332.
As shown in fig. 11 and 12, the tension wheel assembly 102 includes a tension spring 1021, a tension wheel mounting bracket 1022, a tension wheel shaft 1024, and a tension wheel 1025, wherein the tension wheel mounting bracket 1022 is provided with an elongated hole 1022.1, both ends of the tension wheel shaft 1024 are slidably disposed in the elongated hole 1022.1, the tension wheel 1025 is mounted on the tension wheel shaft 1024, and the tension spring 1021 is disposed between the tension wheel shaft 1024 and the tension wheel mounting bracket 1022.
The tension wheel shaft 1024 and the tension wheel mounting bracket 1022 are fixedly connected with the spring hooks 1023, the extension spring 1021 is connected between the corresponding spring hooks 1023, and under the action of the extension spring 1021, the tension wheel shaft 1024 can move in the elongated hole 1022.1, so that the tension of the steel wire rope 103 mounted between the tension wheels 1025 is kept constant.
The invention relates to a working method of a spraying dust-settling device for a fully mechanized coal mining face, which comprises the following specific steps:
firstly, the spray head 3 sprays water mist under the action of high-pressure water and high-pressure air, and the adjustment of the particle size and the water mist intensity of the water mist can be realized by controlling the water inflow of the high-pressure water and the air inflow of the high-pressure air;
secondly, when the horizontal moving component 104 moves along the steel wire rope 103, the horizontal moving component 104 drives the vertical moving component 107, the platform 106 and the cloud deck 2 to move, so that the spray head 3 is driven to move along the steel wire rope 103, and spray dust fall at any position in the horizontal direction on the fully mechanized coal mining face is realized;
thirdly, when the vertical moving component 107 moves along the direction vertical to the steel wire rope 103, the platform 106 and the holder 2 can be driven to move, so that the spray head 3 is driven to move along the direction vertical to the steel wire rope 103, and spray dust fall at any position of the fully mechanized coal mining face in the vertical direction is realized;
fourthly, the horizontal rotating component 23 rotates to drive the pitching component 21 to rotate, so as to drive the spray head 3 to rotate, change the spraying direction of the spray head 3 and realize multi-directional spraying dust suppression at any position in the fully mechanized mining working face;
fifthly, the pitching motion of the pitching assembly 21 can drive the spray head 3 to do pitching motion as well, so that the spraying angle of the spray head 3 is changed, and omnibearing spraying dust suppression at any position in the fully mechanized coal mining working face is realized.
When the dust concentration of the fully mechanized mining face is greater than a threshold value, immediately driving spraying;
when the dust concentration of the fully mechanized mining face is smaller than a threshold value, spraying is stopped, and the spray head moves to another position;
the foregoing is only a preferred embodiment of the present invention. The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention. All technical solutions which are formed by adopting equivalent substitutions or equivalent transformations shall fall within the protection scope of the appended claims.
Claims (7)
1. A spraying dust-settling device for a fully mechanized coal mining face is characterized by comprising a two-degree-of-freedom moving part (1), a holder (2) and a spray head (3);
the two-degree-of-freedom moving part (1) comprises a left upright (101), a steel wire rope (103), a horizontal moving assembly (104), a right upright (105), a platform (106) and a vertical moving assembly (107), wherein the left upright (101) and the right upright (105) are arranged in parallel, the steel wire rope (103) is arranged between the left upright (101) and the right upright (105), the horizontal moving assembly (104) is arranged on the steel wire rope (103) and can move along the steel wire rope (103), the vertical moving assembly (107) is arranged on the horizontal moving assembly (104) and can move in a direction vertical to the steel wire rope (103), and the platform (106) is arranged on the vertical moving assembly (107);
the head (2) comprises a pitching assembly (21) and a horizontal rotating assembly (23), wherein the pitching assembly (21) is mounted on the horizontal rotating assembly (23) and can be pitched relative to the horizontal rotating assembly (23), and the horizontal rotating assembly (23) is mounted on the platform (106) and can rotate relative to the platform (106);
the spray head (3) is arranged on the pitching assembly (21) of the cloud deck (2), and a high-pressure water nozzle (331) connected with high-pressure water and a high-pressure air nozzle (332) connected with high-pressure air are arranged on the spray head (3);
horizontal migration subassembly (104) includes backup pad (1041), actuating mechanism and guiding mechanism, and actuating mechanism installs on the upper portion of backup pad (1041), and guiding mechanism installs upper portion and lower part in backup pad (1041), backup pad (1041) is including parallel arrangement's front panel (1041.1) and rear panel (1041.2), actuating mechanism includes horizontal traction belt (1042), first belt pulley (1043.1), second belt pulley (1043.2), horizontal motor (1046), walking roller shaft (1047) and walking gyro wheel (1048), walking roller shaft (1047) rotationally install on backup pad (1041), install on walking roller shaft (1047) first belt pulley (1043.1) and walking gyro wheel (1048), walking gyro wheel (1048) are located between front panel (1041.1) and rear panel (1041.2), horizontal motor (1046) is installed on backup pad (1041), the second belt pulley (1043.2) is mounted on an output shaft of the horizontal motor (1046), the first belt pulley (1043.1) and the second belt pulley (1043.2) are in transmission connection through the horizontal traction belt (1042), the guide mechanism comprises a walking guide wheel shaft (1044) and a walking guide wheel (1045), the walking guide wheel shaft (1044) is fixedly mounted on the support plate (1041), the walking guide wheel (1045) is rotatably mounted on the walking guide wheel shaft (1044) and is located between the front panel (1041.1) and the rear panel (1041.2), and the walking roller (1048) and the walking guide wheel (1045) are erected on the steel wire rope (103);
the vertical moving assembly (107) comprises a roller assembly (1072), a vertical traction belt (1073), vertical guide rods (1074), a linear bearing (1075) and a vertical motor (1076), wherein the roller assembly (1072) comprises a roller (1072.1), a roller shaft (1072.2) and a roller assembly bracket (1072.3), the roller (1072.1) is rotatably installed on the roller assembly bracket (1072.3) through the roller shaft (1072.2), and the two vertical guide rods (1074) are parallelly installed on a support plate (1041) of the horizontal moving assembly (104); the two roller assemblies (1072) are located in the middle positions of two ends of the two vertical guide rods (1074), the roller shaft (1072.2) of one roller assembly (1072) is in transmission connection with the vertical motor (1076), the vertical traction belt (1073) is installed between the rollers (1072.1) of the two roller assemblies (1072), the linear bearings (1075) are installed on the two vertical guide rods (1074), and the platform (106) is installed on the linear bearings (1075) and is fixedly connected with the vertical traction belt (1073).
2. The spraying dust-settling device for the fully mechanized mining face of claim 1, wherein the two-degree-of-freedom moving part (1) further comprises a tension wheel assembly (102), the tension wheel assemblies (102) are symmetrically installed on the side surfaces of the upper portions and the lower portions of the left upright column (101) and the right upright column (105), and the two steel wire ropes (103) are respectively tensioned between the tension wheel assemblies (102) on the upper portions and the lower portions of the left upright column (101) and the right upright column (105).
3. The spray dust settling device for the fully mechanized mining face of claim 1, wherein the horizontal rotation assembly (23) comprises a horizontal rotation motor (231), a worm (234), a slewing bearing (235) and a support frame (236), the worm (234) is mounted on the support frame (236) and is in transmission connection with the horizontal rotation motor (231), an inner ring of the slewing bearing (235) is fixedly mounted on a bottom surface of the support frame (236), an outer ring of the slewing bearing (235) is provided with a worm wheel, the worm wheel on the outer ring of the slewing bearing (235) is engaged with the worm (234), the support frame (236) is fixedly mounted on the platform (106), and the pitch assembly (21) is mounted on the outer ring of the slewing bearing (235).
4. The spraying dust settling device for the fully mechanized mining face of claim 1, wherein the pitching assembly (21) comprises a mounting plate (211), a nozzle mounting plate (213), a pitching shaft (214), a first gear (215.1), a second gear (215.2), a steering engine (216) and a nozzle fixing clamp (218), the pitching shaft (214) is mounted on the mounting plate (211), the first gear (215.1) is mounted at one end of the pitching shaft (214), the first gear (215.1) is meshed with the second gear (215.2), the second gear (215.2) is in transmission connection with the steering engine (216), the nozzle mounting plate (213) is fixed at a middle position of the pitching shaft (214), the nozzle fixing clamp (218) is mounted on the nozzle mounting plate (213), and the mounting plate (211) is mounted on the horizontal rotating assembly (23), the spray head (3) is fixed in the spray head fixing clamp (218).
5. The spraying dust-settling device for the fully mechanized mining face of claim 1, wherein the nozzle head (3) comprises a nozzle head (31), a sealing ring (32) and a nozzle holder (33), the nozzle head (31), the sealing ring (32) and the nozzle holder (33) are connected together through screws, the sealing ring (32) is located between the nozzle head (31) and the nozzle holder (33), the front end of the nozzle head (31) is provided with a plurality of nozzle openings (312), the rear end of the nozzle head (31) is provided with a water spray cavity (311), and the nozzle holder (33) is provided with the high-pressure water nozzle (331) and the high-pressure air nozzle (332).
6. The spray dust settling device for the fully mechanized mining face of claim 2, wherein the tension wheel assembly (102) comprises a tension spring (1021), a tension wheel mounting bracket (1022), a tension wheel shaft (1024) and a tension wheel (1025), the tension wheel mounting bracket (1022) is provided with an elongated hole slot (1022.1), both ends of the tension wheel shaft (1024) are slidably disposed in the elongated hole slot (1022.1), the tension wheel (1025) is mounted on the tension wheel shaft (1024), and the tension spring (1021) is disposed between the tension wheel shaft (1024) and the tension wheel mounting bracket (1022).
7. The working method of the spray dust-settling device for the fully mechanized mining face as claimed in any one of claims 1 to 6, comprising the steps of:
the spray head (3) sprays water mist under the action of high-pressure water and high-pressure air, and the adjustment of the particle size and the water mist intensity of the water mist can be realized by controlling the water inflow of the high-pressure water and the air inflow of the high-pressure air;
secondly, when the horizontal moving component (104) moves along the steel wire rope (103), the horizontal moving component (104) drives the vertical moving component (107), the platform (106) and the cloud deck (2) to move, so that the spray head (3) is driven to move along the steel wire rope (103), and spray dust fall at any position in the horizontal direction on the fully mechanized mining face is realized;
thirdly, when the vertical moving component (107) moves along the direction vertical to the steel wire rope (103), the platform (106) and the cloud deck (2) can be driven to move, so that the spray head (3) is driven to move along the direction vertical to the steel wire rope (103), and spray dust fall at any position of the fully mechanized coal mining face in the vertical direction is realized;
fourthly, the horizontal rotating component (23) rotates to drive the pitching component (21) to rotate, so that the spray head (3) is driven to rotate, the spraying direction of the spray head (3) is changed, and multi-directional spraying dust suppression at any position in the fully mechanized mining working face is realized;
fifthly, the pitching motion of the pitching assembly (21) can drive the spray head (3) to do pitching motion as well, the spraying angle of the spray head (3) is changed, and omnibearing spraying dust reduction at any position in the fully mechanized coal mining working face is realized.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235504.7A CN111255451B (en) | 2020-03-30 | 2020-03-30 | Spraying dust-settling device for fully mechanized coal mining face and working method thereof |
| PCT/CN2021/081299 WO2021197069A1 (en) | 2020-03-30 | 2021-03-17 | Dust suppression spraying apparatus for use on fully-mechanized coal-mining face and working method for apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235504.7A CN111255451B (en) | 2020-03-30 | 2020-03-30 | Spraying dust-settling device for fully mechanized coal mining face and working method thereof |
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| Publication Number | Publication Date |
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| CN111255451A CN111255451A (en) | 2020-06-09 |
| CN111255451B true CN111255451B (en) | 2021-04-23 |
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| CN202010235504.7A Active CN111255451B (en) | 2020-03-30 | 2020-03-30 | Spraying dust-settling device for fully mechanized coal mining face and working method thereof |
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| WO (1) | WO2021197069A1 (en) |
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| CN111255451B (en) * | 2020-03-30 | 2021-04-23 | 江苏科技大学 | Spraying dust-settling device for fully mechanized coal mining face and working method thereof |
| CN112156588A (en) * | 2020-09-04 | 2021-01-01 | 广州市景云机电科技有限公司 | A air dust device for building site |
| CN114177726A (en) * | 2021-11-04 | 2022-03-15 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Single-hydrodynamic smashing-preventing spraying dust-settling device with rotary nozzle |
| CN113908647B (en) * | 2021-11-15 | 2024-04-09 | 辽宁工程技术大学 | Supersonic self-spiral micro-fog dust settling device |
| CN114602278B (en) * | 2022-03-18 | 2023-11-14 | 马鞍山市方正机械制造有限责任公司 | Control system for realizing automatic tracking, spraying and dust suppression of cradle head based on electromagnetic wave tracking technology |
| CN118304731B (en) * | 2024-06-07 | 2024-09-03 | 天津天禹天恒建设工程有限公司 | Dust fall device for building site |
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| WO2021197069A1 (en) | 2021-10-07 |
| CN111255451A (en) | 2020-06-09 |
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