CN117027919B - Underground coal mine fire extinguishing method and device - Google Patents
Underground coal mine fire extinguishing method and device Download PDFInfo
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- CN117027919B CN117027919B CN202311298558.8A CN202311298558A CN117027919B CN 117027919 B CN117027919 B CN 117027919B CN 202311298558 A CN202311298558 A CN 202311298558A CN 117027919 B CN117027919 B CN 117027919B
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- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000004044 response Effects 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the technical field of underground coal mine fire extinguishment, in particular to an underground coal mine fire extinguishment method and device, comprising the following steps that firstly, when a fire source detector detects that a fire source exists in a certain place in a mine, a fire signal is sent to a controller; step two, the controller controls the sliding motor to drive the sliding seat I to slide along the sliding rail, so that the sliding seat I is close to the fire source detector and the fire source; step three, the stepping motor drives the sliding block to slide along the guide clamping groove, and the sliding seat II simultaneously slides along the sliding rod, so that the plurality of sliding seats II drive the fire extinguishing seats to be close to or far away from each other, and the fire extinguishing area of the fire extinguishing seats is adjusted; pumping out water in the reservoir through the water pump and the connecting pipe, and spraying the water to a fire source and the vicinity thereof through the spray head to extinguish fire; step five, after the water subjected to fire extinguishment is filtered through the filtering water holes, returning the water to the reservoir from the water holes; the invention has the advantages of adjustable fire extinguishing area and higher fire extinguishing efficiency, and also has the advantages of high response speed, safety and reliability in use and capability of preventing a fire source from detonating gas in a mine.
Description
Technical Field
The invention relates to the technical field of underground coal mine extinguishment, in particular to an underground coal mine extinguishment method and device.
Background
The mine is a generic term for forming a roadway, a chamber, equipment, a ground building and a structure of an underground coal mine production system, and along with the requirement of social development, more and more coal mines are developed, so that more and more mines are also created, and because more coal mine resources exist in the mines, great loss can be caused once a fire disaster occurs, the mine is a channel, and once the fire disaster occurs, the fire disaster rapidly spreads, so that irrecoverable loss is caused.
The prior Chinese patent with the bulletin number of CN111335935B discloses an underground coal mine fire extinguishing device, which comprises a mine, wherein the mine is divided into an arc-shaped upper end part of the mine and a rectangular lower end part of the mine, an arc-shaped cavity is formed in the wall body of the upper end part of the mine along the direction of the wall body, and a wind cup is rotationally connected to the middle part of the inner top of the mine through a rotating shaft. According to the invention, the air cup, the air suction mechanism and the plugging mechanism are arranged, the air cup is driven to rotate by air flow flowing in a mine, the air cup drives the permanent magnet to rotate, so that the arc-shaped magnet is pushed to slide back and forth along the arc-shaped chute, the lower end part of the arc-shaped cavity is in a negative pressure state, when fire in the mine occurs, the sliding plug is pulled back into the rectangular groove by thermal deformation metal deformation, water is sucked into the arc-shaped cavity by the negative pressure and sprayed out from the water outlet, so that fire is extinguished rapidly, more loss is avoided, and the extinguishing water flows back to the water storage cavity from the backflow hole again, so that the next continuous use is realized, water resources are not required to be replaced, and the energy and the environment are saved.
However, in practical applications, the device has the following problems: firstly, in order to ensure that water in the water storage cavity can be pumped out by negative pressure, the lengths of the arc-shaped cavity and the water guide cavity can only be set to be relatively short along the length direction of a mine, so that the number of water outlets is limited, water sprayed out of the water outlets can only extinguish fire at the position nearby the water outlets, the fire extinguishing area is small, the fire extinguishing area cannot be adjusted, and therefore, fire is difficult to extinguish a fire source with a large area, and the fire extinguishing efficiency is low; secondly, because the deformation temperature of common metal thermal deformation material is above 90 ℃, the heat conduction plate needs to be burnt to be above 90 ℃ to start deformation so as to open the water conduction cavity, the response speed is slower, and the mine gas and dust are more, before the heat conduction plate deforms, the fire source is extremely easy to detonate the mine gas, and great potential safety hazards exist.
Disclosure of Invention
Aiming at the defects, the invention provides the underground coal mine fire extinguishing method and device, which have the advantages of adjustable fire extinguishing area and higher fire extinguishing efficiency, and also have the advantages of high response speed, safety and reliability in use and capability of preventing a fire source from detonating gas in a mine.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an underground coal mine fire extinguishing device is characterized in that: the fire extinguishing device comprises a mine, a controller embedded on the inner wall of the mine, a plurality of fire source detectors are arranged on the inner side wall of the mine at equal intervals along the length direction of the mine, an embedded steel plate is embedded on the top wall of the mine, a sliding rail is arranged at the bottom of the embedded steel plate, a sliding seat I on the sliding rail is in sliding connection with a sliding driving mechanism used for driving the sliding seat I to slide along the sliding rail, a plurality of fire extinguishing seats are arranged on the sliding seat I and used for driving the fire extinguishing seats to mutually approach or keep away from the adopted fire extinguishing space adjusting mechanism, a fire extinguishing cavity is arranged in the fire extinguishing seats, a plurality of spray heads communicated with the fire extinguishing cavity are arranged on the fire extinguishing seats, the fire extinguishing cavities are communicated through connecting pipes, a bottom plate is arranged at the bottom of the mine, a water storage tank is arranged below the bottom plate, a water outlet pipe is arranged in the water storage tank, one end of the water outlet pipe, which extends into the water storage tank, one end of the water outlet pipe, which is far away from the water pump, is communicated with the connecting pipe, and the fire source detectors, the sliding driving mechanism, the space adjusting mechanism and the water pump are electrically connected with the controller.
The fire extinguishing space adjusting mechanism comprises two fixing plates which are opposite to each other and arranged on a first sliding seat, a sliding rod, a driving shaft and a plurality of second sliding seats are arranged between the two fixing plates, two ends of the sliding rod are respectively fixed on the two fixing plates, the driving shaft is rotatably connected between the two fixing plates through a bearing, the second sliding seats are slidably connected on the sliding rod, a clamping driving assembly is fixed on the back of the first sliding seat and used for driving the driving shaft to rotate, a plurality of guiding clamping grooves are respectively arranged on the driving shaft leftwards and rightwards by taking the axle center of the driving shaft as a datum point, a sliding block is slidably connected in the guiding clamping grooves, one end of the sliding block extends out of the guiding clamping grooves and is connected with the second sliding seats, and the fire extinguishing seat is fixed on the second sliding seats;
further, one end of the driving shaft is provided with a driven wheel; the clamping driving assembly comprises a stepping motor fixed on the fixed plate, a driving wheel is connected to an output shaft of the stepping motor in a driving mode, and the driving wheel is connected with a driven wheel through a belt.
Further, the sliding driving mechanism comprises a sliding motor fixed at one end of the sliding rail, a sliding screw rod arranged on an output shaft of the sliding motor, a sliding internal threaded hole is formed in the first sliding seat, and the first sliding seat is in threaded connection with the sliding screw rod through the internal threaded hole.
Further, the bottom plate includes the backup pad, set up in recess in the backup pad, upper and lower sliding connection is in filter in the recess is used for connecting a plurality of springs that filter and backup pad adopted, be provided with a plurality of drainage holes on the filter, be provided with the water hole in the backup pad, the backup pad is fixed on the opening of cistern.
Further, just right in the backup pad the drainage hole is provided with the mediation post, the water hole sets up in the neighborhood between the mediation post, when the spring is in compressed state, the mediation post inserts in the drainage hole, the top of mediation post flushes with the upper surface of filter this moment, be provided with the mediation inclined plane on the mediation post, the mediation inclined plane is close to the top setting of mediation post.
A method for extinguishing a fire in a coal mine, comprising the steps of: step one, when a fire source detector detects that a fire source exists in a certain place in a mine, a fire signal is sent to a controller;
step two, the controller controls the sliding motor to drive the sliding screw rod to rotate, and the sliding screw rod drives the first sliding seat to slide along the sliding rail through the sliding internal threaded hole, so that the first sliding seat is close to the fire source detector and the fire source;
step three, a stepping motor drives a driving wheel to rotate, the driving wheel drives a driven wheel and a driving shaft to rotate through a belt, the driving shaft rotates to drive a sliding block to slide along a guide clamping groove, and meanwhile, a sliding seat II slides along a sliding rod, so that a plurality of sliding seats II drive fire extinguishing seats to be mutually close to or far away from each other, and the fire extinguishing area of the fire extinguishing seats is adjusted;
pumping out water in the reservoir through the water pump and the connecting pipe, and spraying the water to the fire source and the vicinity thereof through the spray head so as to quickly extinguish the fire source;
and fifthly, the water after fire extinguishment passes through the filtering water holes and returns to the reservoir through the water holes after being filtered.
The beneficial effects of the invention are as follows:
in practical application, when the fire source detector is used, the position of each fire source detector in a mine is recorded into the controller, and when one fire source detector detects a fire source in the mine, the controller controls the sliding driving mechanism to drive the sliding seat to slide along the sliding rail, so that the sliding seat is close to the fire source detector and the fire source, the fire extinguishing space adjusting mechanism drives adjacent fire extinguishing seats to be close to or far away from each other, the fire extinguishing area of the fire extinguishing seats is adjusted, water in the reservoir is pumped out through the water pump and the connecting pipe, and the water is sprayed to the fire source through the spray head, so that the fire extinguishing speed is high, gas in the mine is prevented from being detonated by the fire source, and the fire extinguishing space adjusting mechanism is safer and more reliable to use; the invention has the advantages of adjustable fire extinguishing area and higher fire extinguishing efficiency, and also has the advantages of high response speed, safety and reliability in use and capability of preventing a fire source from detonating gas in a mine.
Drawings
FIG. 1 is a diagram of the method steps of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the slide drive mechanism, first slide, fire extinguishing space adjusting mechanism and fire extinguishing base of the present invention;
FIG. 4 is a schematic view of the first slide, fire interval adjustment mechanism and fire seat of the present invention;
FIG. 5 is a schematic view of the fire extinguishing space adjusting mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the base plate of the present invention;
FIG. 7 is a cross-sectional view of a base plate of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at A;
reference numerals: a mine 1; a fire source detector 2; pre-buried steel plates 3; a first slide seat 4; a slide driving mechanism 5; a slide motor 51; a slide screw 52; a fire extinguishing seat 6; a shower head 61; a connection pipe 62; a fire extinguishing space adjusting mechanism 7; a fixing plate 71; a slide bar 72; a drive shaft 73; guide groove 731; driven wheel 732; a second slide 74; a slider 75; a stepping motor 761; a driving wheel 762; a belt 763; a bottom plate 8; a support plate 81; a groove 811; a water passing hole 812; a filter plate 82; a drainage hole 821; a spring 83; a pull-through post 84; dredging slope 841; a reservoir 9; a water outlet pipe 91; and a water pump 92.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
As shown in fig. 1-8, a downhole fire extinguishing device for coal mine comprises a mine 1, a controller embedded on the inner wall of the mine 1, a plurality of fire source detectors 2 are equidistantly arranged on the inner side wall of the mine 1 along the length direction of the mine 1, an embedded steel plate 3 is embedded on the top wall of the mine 1, a sliding rail is arranged at the bottom of the embedded steel plate 3, a sliding seat 4 which is slidably connected with the sliding rail is arranged on the sliding seat 4, a sliding driving mechanism 5 which is used for driving the sliding seat 4 to slide along the sliding rail is arranged, a plurality of fire extinguishing seats 6 are arranged on the sliding seat 4, a fire extinguishing space adjusting mechanism 7 which is used for driving the fire extinguishing seats 6 to mutually approach or keep away from each other, a fire extinguishing cavity is arranged in the fire extinguishing seats 6, a plurality of spray heads 61 which are communicated with the fire extinguishing cavity are communicated with each other through connecting pipes 62, a bottom plate 8 is arranged at the bottom of the mine 1, a water storage tank 9 is arranged below the bottom plate 8, a water outlet pipe 91 is arranged in the water outlet pipe 9, one end 92 of the water outlet pipe 91 stretches into the water pump 9, one end 92 of the water outlet pipe 92 is electrically communicated with the water pump 2, and the water outlet pipe 92 is electrically connected with the fire extinguishing space adjusting mechanism 92, and the fire extinguishing space adjusting mechanism 2 is electrically connected with one end of the water pump 2; in this embodiment, during the use, all enter the controller with the position of every fire source detector 2 in the mine 1, when the interior fire source of a certain fire source detector 2 detects in the mine 1, the controller control slip actuating mechanism 5 drives slide one 4 along the slide rail and slides, make slide one 4 be close to this fire source detector 2 and fire source, fire extinguishing space adjustment mechanism 7 drive adjacent fire extinguishing seat 6 be close to each other or keep away from, the fire extinguishing area of adjustment fire extinguishing seat 6, water in the cistern 9 is taken out through water pump 92 and connecting pipe 62, water is spouted to the fire source through shower nozzle 61, fire extinguishing speed is fast, prevent the fire source from detonating the gas in the mine 1, safe and reliable in utilization.
As shown in fig. 1-8, the sliding driving mechanism 5 includes a sliding motor 51 fixed at one end of the sliding rail, a sliding screw 52 disposed on an output shaft of the sliding motor 51, a sliding internal threaded hole is disposed on the first slide 4 opposite to the sliding screw 52, and the first slide 4 is screwed with the sliding screw 52 through the internal threaded hole; in this embodiment, in the process of driving the sliding screw rod 52 to rotate by the sliding motor 51, the sliding screw rod 52 drives the first slide seat 4 to slide along the slide rail through the sliding internal threaded hole.
As shown in fig. 1-8, the fire extinguishing space adjusting mechanism 7 includes two fixing plates 71 opposite to the first slide seat 4, a sliding rod 72, a driving shaft 73 and a plurality of second slide seats 74 are disposed between the two fixing plates 71, two ends of the sliding rod 72 are respectively fixed on the two fixing plates 71, the driving shaft 73 is rotatably connected between the two fixing plates 71 through bearings, the second slide seats 74 are slidably connected on the sliding rod 72, a clamping driving assembly is fixed on the back surface of the first slide seat 4, the clamping driving assembly is used for driving the driving shaft 73 to rotate, a plurality of guiding clamping grooves 731 are respectively disposed on the driving shaft 73 leftwards and rightwards with the axle center of the driving shaft 73 as a reference point, one end of the guiding clamping groove 731 is slidably connected with a sliding block 75, after extending out of the guiding clamping groove, the sliding block 75 is connected with the second slide seats 731, and the fire extinguishing seat 6 is fixed on the second slide seats 74; in this embodiment, in the process of driving the driving shaft 73 to rotate by the clamping driving assembly, the driving shaft 73 rotates to drive the sliding block 75 to slide along the guiding slot 731, and meanwhile, the second sliding seat 74 slides along the sliding rod 72, so that the second sliding seats 74 drive the fire extinguishing seat 6 to approach or separate from each other.
As shown in fig. 1-8, one end of the driving shaft 73 is provided with a driven wheel 732; the clamping driving assembly comprises a stepping motor 761 fixed on the fixed plate 71, an output shaft of the stepping motor 761 is in driving connection with a driving wheel 762, and the driving wheel 762 and a driven wheel 732 are connected through a belt 763; in this embodiment, the stepping motor 761 drives the driving pulley 762 to rotate, and the driving pulley 762 drives the driven pulley 732 and the driving shaft 73 to rotate through the belt 763.
As shown in fig. 1 to 8, the bottom plate 8 includes a support plate 81, a groove 811 provided on the support plate 81, a filter plate 82 slidably connected in the groove 811 up and down, and a plurality of springs 83 for connecting the filter plate 82 and the support plate 81, a plurality of water filtering holes 821 are provided on the filter plate 82, a water passing hole 812 is provided on the support plate 81, and the support plate 81 is fixed on the opening of the reservoir 9; in this embodiment, the water after fire extinguishing is filtered through the filtering water holes 821 and returned to the water reservoir 9 through the water holes 812.
As shown in fig. 1-8, a dredging column 84 is disposed on the supporting plate 81 opposite to the drainage hole 821, the drainage hole 812 is disposed between adjacent dredging columns 84, when the spring 83 is in a compressed state, the dredging column 84 is inserted into the drainage hole 821, at this time, the top end of the dredging column 84 is flush with the upper surface of the filter plate 82, a dredging inclined plane 841 is disposed on the dredging column 84, and the dredging inclined plane 841 is disposed near the top end of the dredging column 84; in the embodiment, when a mine worker steps on the supporting plate 81 to pass, the supporting plate 81 slides downwards along the groove 811, and meanwhile, the dredging column 84 is inserted into the water filtering hole 821 to dredge the water filtering hole 821, so that the water filtering hole 821 is prevented from being blocked; after the mine worker leaves, the supporting plate 81 is reset by the restoring force of the spring 83; the pull-through stud 84 is more easily inserted into the drain hole 821 by the pull-through ramp 841.
As shown in fig. 1-8, a method for extinguishing a fire in a coal mine underground comprises the following steps: step one, when a fire source detector 2 detects that a fire source exists at a certain position in a mine 1, a fire signal is sent to a controller;
step two, the controller controls the sliding motor 51 to drive the sliding screw rod 52 to rotate, and the sliding screw rod 52 drives the first slide seat 4 to slide along the sliding rail through the sliding internal threaded hole, so that the first slide seat 4 is close to the fire source detector 2 and the fire source;
step three, a step motor 761 drives a driving wheel 762 to rotate, the driving wheel 762 drives a driven wheel 732 and a driving shaft 73 to rotate through a belt 763, the driving shaft 73 rotates to drive a sliding block 75 to slide along a guide clamping groove 731, and meanwhile, a sliding seat II 74 slides along a sliding rod 72, so that a plurality of sliding seats II 74 drive fire extinguishing seats 6 to be mutually close to or far away from each other, and the fire extinguishing area of the fire extinguishing seats 6 is adjusted;
step four, water in the reservoir 9 is pumped out through the water pump 92 and the connecting pipe 62, and is sprayed to the fire source and the vicinity thereof through the spray head 61, so that the fire source is extinguished rapidly;
and fifthly, the water after fire extinguishment is filtered through the filtering water holes 821 and then returned to the reservoir 9 through the water holes 812.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the invention as defined in the accompanying claims.
Claims (5)
1. An underground coal mine fire extinguishing device is characterized in that: including mine (1), inlay locate controller on the inner wall of mine (1), follow the length direction of mine (1) equidistance is provided with a plurality of fire source detectors (2) on the inside wall of mine (1), inlay on the roof of mine (1) and be equipped with pre-buried steel sheet (3), the bottom of pre-buried steel sheet (3) is provided with the slide rail, sliding connection is in slide on the slide rail slide one (4), be used for the drive slide one (4) follow slide actuating mechanism (5) that slide rail slides adoption, be provided with a plurality of fire extinguishing seat (6) on slide one (4), be used for the drive fire extinguishing seat (6) are close to each other or keep away from fire extinguishing space adjustment mechanism (7) that adopts, be provided with fire extinguishing cavity in fire extinguishing seat (6), be provided with a plurality of intercommunication on fire extinguishing seat (6) shower nozzle (61) in fire extinguishing cavity, a plurality of fire extinguishing cavity are through connecting pipe (62) intercommunication, the bottom of mine (1) is provided with bottom plate (8), the below of bottom plate (8) is provided with cistern (9), cistern (92) are provided with water pump (91) one end (91) are gone into to water pump (91), the fire source detector (2), the sliding driving mechanism (5), the fire extinguishing space adjusting mechanism (7) and the water pump (92) are electrically connected with the controller;
the fire extinguishing space adjusting mechanism (7) comprises two fixing plates (71) which are opposite to each other and arranged on the first sliding seat (4), a sliding rod (72), a driving shaft (73) and a plurality of second sliding seats (74) are arranged between the two fixing plates (71), two ends of the sliding rod (72) are respectively fixed on the two fixing plates (71), the driving shaft (73) is rotatably connected between the two fixing plates (71) through a bearing, the second sliding seat (74) is slidably connected onto the sliding rod (72), a clamping driving assembly is fixed on the back surface of the first sliding seat (4), the clamping driving assembly is used for driving the driving shaft (73) to rotate, a plurality of guide clamping grooves (731) are respectively arranged on the driving shaft (73) leftwards and rightwards by taking the axle center of the driving shaft (73) as a datum point, one end of the sliding block (75) extends out of the guide clamping groove (731) and is connected with the second sliding seat (74), and the second sliding seat (6) is fixed on the second sliding seat (731);
one end of the driving shaft (73) is provided with a driven wheel (732); the clamping driving assembly comprises a stepping motor (761) fixed on the fixed plate (71), a driving wheel (762) is connected to an output shaft of the stepping motor (761) in a driving mode, and the driving wheel (762) and a driven wheel (732) are connected through a belt (763).
2. The underground coal mine fire extinguishing device according to claim 1, wherein the sliding driving mechanism (5) comprises a sliding motor (51) fixed at one end of the sliding rail, a sliding screw (52) arranged on an output shaft of the sliding motor (51), a sliding internal threaded hole is formed in the first sliding seat (4) opposite to the sliding screw (52), and the first sliding seat (4) is in threaded connection with the sliding screw (52) through the internal threaded hole.
3. A downhole fire extinguishing device for coal mine according to claim 1, wherein the bottom plate (8) comprises a supporting plate (81), a groove (811) arranged on the supporting plate (81), a filter plate (82) connected in the groove (811) in an up-down sliding manner, a plurality of springs (83) used for connecting the filter plate (82) and the supporting plate (81), a plurality of water filtering holes (821) arranged on the filter plate (82), a water passing hole (812) arranged on the supporting plate (81), and the supporting plate (81) fixed on the opening of the reservoir (9).
4. A downhole fire extinguishing device for coal mine according to claim 3, wherein the supporting plate (81) is provided with a dredging column (84) opposite to the water filtering holes (821), the water passing holes (812) are arranged between the adjacent dredging columns (84), when the springs (83) are in a compressed state, the dredging columns (84) are inserted into the water filtering holes (821), the top ends of the dredging columns (84) are flush with the upper surface of the filter plates (82), the dredging columns (84) are provided with dredging inclined planes (841), and the dredging inclined planes (841) are arranged close to the top ends of the dredging columns (84).
5. A method for extinguishing a fire in a coal mine, comprising the steps of: step one, when a fire source detector (2) detects that a fire source exists at a certain position in a mine (1), a fire signal is sent to a controller;
step two, the controller controls the sliding motor (51) to drive the sliding screw rod (52) to rotate, and the sliding screw rod (52) drives the sliding seat I (4) to slide along the sliding rail through the sliding internal threaded hole, so that the sliding seat I (4) is close to the fire source detector (2) and the fire source;
step three, a step motor (761) drives a driving wheel (762) to rotate, the driving wheel (762) drives a driven wheel (732) and a driving shaft (73) to rotate through a belt (763), the driving shaft (73) rotates to drive a sliding block (75) to slide along a guide clamping groove (731), meanwhile, a sliding seat II (74) slides along a sliding rod (72), a plurality of sliding seats II (74) drive fire extinguishing seats (6) to be close to or far away from each other, and the fire extinguishing area of the fire extinguishing seats (6) is adjusted;
step four, water in the reservoir (9) is pumped out through the water pump (92) and the connecting pipe (62), and the water is sprayed to the fire source and the vicinity thereof through the spray head (61), so that the fire source is extinguished rapidly;
and fifthly, the water after fire extinguishment is filtered through the filtering water holes (821) and then returned to the reservoir (9) through the water holes (812).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298558.8A CN117027919B (en) | 2023-10-09 | 2023-10-09 | Underground coal mine fire extinguishing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298558.8A CN117027919B (en) | 2023-10-09 | 2023-10-09 | Underground coal mine fire extinguishing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117027919A CN117027919A (en) | 2023-11-10 |
| CN117027919B true CN117027919B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311298558.8A Active CN117027919B (en) | 2023-10-09 | 2023-10-09 | Underground coal mine fire extinguishing method and device |
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| Country | Link |
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| CN (1) | CN117027919B (en) |
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| CN111335935A (en) * | 2020-02-28 | 2020-06-26 | 柳友军 | Fire extinguishing device for underground coal mine |
| CN214403726U (en) * | 2020-12-04 | 2021-10-15 | 邯郸钢铁集团有限责任公司 | Fire-proof device for smoke exhaust port of diesel engine of electric transmission diesel locomotive |
| CN214577203U (en) * | 2021-04-19 | 2021-11-02 | 山西阳光三极科技股份有限公司 | Coal mine underground anti-collision system based on UWB |
| CN214660300U (en) * | 2021-04-19 | 2021-11-09 | 山西阳光三极科技股份有限公司 | Be applied to colliery underground ventilation equipment's dryer supervisory equipment |
| CN116181398A (en) * | 2023-03-22 | 2023-05-30 | 淮北矿业股份有限公司 | Goaf nitrogen blocking fine water mist fire prevention and extinguishing method |
| CN219795322U (en) * | 2023-05-15 | 2023-10-03 | 上海埃意自动控制系统有限公司 | Automatic fire extinguishing device for underground coal mine area |
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2023
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