CN107961465A - A kind of mining Vehicular multifunctional fire extinguishing device - Google Patents

A kind of mining Vehicular multifunctional fire extinguishing device Download PDF

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Publication number
CN107961465A
CN107961465A CN201711296889.2A CN201711296889A CN107961465A CN 107961465 A CN107961465 A CN 107961465A CN 201711296889 A CN201711296889 A CN 201711296889A CN 107961465 A CN107961465 A CN 107961465A
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CN
China
Prior art keywords
valve
fire extinguishing
foam
outlet
mixing agitator
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Pending
Application number
CN201711296889.2A
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Chinese (zh)
Inventor
张辛亥
郑仲明
张天赐
冯振
邢二军
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Xi'an Tean Technology Co Case Preparation
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Xi'an Tean Technology Co Case Preparation
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Publication date
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Priority to CN201711296889.2A priority Critical patent/CN107961465A/en
Publication of CN107961465A publication Critical patent/CN107961465A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C5/00Making of fire-extinguishing materials immediately before use
    • A62C5/02Making of fire-extinguishing materials immediately before use of foam
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C27/00Fire-fighting land vehicles

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The present invention relates to a kind of mining Vehicular multifunctional fire extinguishing device, solve in existing Mine Integrated preventing and extinguishing fire technology, defeated pitch is from the problem of remote, system is huge, connection roadway blocks heavy workload, efficiency is low.Including foam generating system, filling system, composite gellant add-on system and vehicle-mounted migration system, slip casting, spray inhibition foam, note three-phase froth, note composite colloid, the inorganic solidified five kinds of techniques of foam of note are merged into a kind of multi-functional preventing and extinguishing fire technology.According to mine fire extinguishing difference needs, spray to the coal seam needed, realizes preventing and extinguishing fire of coal mine Integration ofTechnology, and apparatus structure is simple, fast, and makes to fix fire extinguishing system in the past and is changed into vehicle-mounted mobile, has promoted the development of preventing and extinguishing fire technology modernization.

Description

A kind of mining Vehicular multifunctional fire extinguishing device
Technical field
The invention belongs to mine disaster prevention and control field, is related to a kind of multi-functional fire extinguishing equipment, more particularly to a kind of mining Vehicular multifunctional fire extinguishing device.
Background technology
Mine fire needs to take comprehensive preventing and extinguishing fire technology.Modern mine Stope dimension is big, and coal working face size is big, Grouting Extinguishment, the fire extinguishing of note composite colloid, note three-phase foam extinguishing are required to be conveyed using ground grouting system, when defeated pitch When too far away, just it is difficult to realize put out a fire.
And existing fire extinguishing system is huge, thousands of or even tens of kms are controlled, and each system placement region is different, pipe Manage and difficult in maintenance.Working face drivage efficiency is high, but connection roadway closure workload is very big, and labor intensity is big, and efficiency is low, restricts High yield and efficiency plays.Therefore, there is an urgent need for a kind of multi-functional fire extinguishing equipment that can fast move, to improve fire extinguishing ability And efficiency, ensure mine safety production.
The content of the invention
The object of the present invention is to provide a kind of quick and easy, flexible mining Vehicular multifunctional fire extinguishing device, integrate more Kind extinguishing device, has adapted to the various fire prevention needs of mine.
The technical solution of the present invention is to provide a kind of mining Vehicular multifunctional fire extinguishing device, its special character exists In:Fire extinguishing device including car body and on car body, above-mentioned fire extinguishing device include filling system, foam generating system and Composite gellant add-on system;
Above-mentioned filling system includes feed device, mixing agitator and grouting pump;Above-mentioned feed device enters equipped with raw material Mouth and material outlet, the outlet connection outlet pipeline and valve c of above-mentioned grouting pump, above-mentioned feed device are used for feedstock transportation extremely Mixing agitator is mixed with water, and the entrance of above-mentioned grouting pump is connected by pipeline with mixing agitator for that will mix Slurry afterwards is delivered to grout injection location by outlet conduit;
Above-mentioned foam generating system includes expanding foam solution storage tank, pump and porous crumbs bubble generator, above-mentioned porous crumbs and steeps generator Gas access and foam outlet are provided with, above-mentioned expanding foam solution storage tank is used to store expanding foam solution, and said pump is used to convey expanding foam solution Generator is steeped to porous crumbs, expanding foam solution produces inhibition foam in porous crumbs bubble generator with gas and exported by foam outlet; Valve b is provided with above-mentioned foam outlet;
Above-mentioned composite gellant add-on system includes colloid storage tank;
Above-mentioned mixing agitator steeps generator with porous crumbs by pipeline, valve a and connects;The port of export of above-mentioned colloid storage tank Connected equipped with valve d and by pipeline with outlet conduit;
Valve a and valve b is respectively used to control inhibition foam and exports to mixing agitator and output extremely perfusion point, valve c The output of slurry and colloid Yong Yu not be controlled with valve d to irrigating a little.
Preferably, above-mentioned mixing agitator steeps generator with porous crumbs by three-way pipeline and connects, two of three-way pipeline Output terminal sets valve a and valve b respectively, the output terminal equipped with valve b as foam outlet, output terminal equipped with valve a with Mixing agitator connects, and the 3rd output terminal of three-way pipeline is connected with porous crumbs bubble generator.
Preferably, above-mentioned car body has explosion-proof, is provided with pneumatic prosperity on above-mentioned car body, which passes through compressed air There is provided power, can work under powering-off state, above-mentioned pneumatic prosperity is connected with feed device and mixing agitator, for Mixing agitator and feed device provide power.
Preferably, above-mentioned feed device is spiral feeder.
Preferably, above-mentioned grouting pump pumps for wind-driving grouting.
Preferably, the pump in foam generating system is pneumatic self priming pump.
Preferably, the material outlet of feed device is located at the bottom of feed device, and above-mentioned raw materials outlet is positioned at mixing The surface of device entrance.
Preferably, the gas being passed through by gas access is air or nitrogen.
Preferably, above-mentioned raw materials are loess, flyash or inorganic solidified filler.
Preferably, colloid storage tank is equipped with water inlet.
The beneficial effects of the invention are as follows:
1st, by apparatus of the present invention can realize slip casting, spray inhibition foam, note three-phase froth, the inorganic solidified foam of note, Five kinds of techniques of composite colloid are noted, realize preventing and extinguishing fire of coal mine Integration ofTechnology, have adapted to the different needs of mine fire extinguishing;
2nd, the fire extinguishing system of existing fixation is changed into vehicle-mounted mobile system by the present invention, and maneuverability is adaptable, has Beneficial to quick extinguishing, the modernization development of motive force preventing and extinguishing fire technology;
3rd, the present invention uses pneumatic prosperity, and using compressed gas as power, compressed gas injects air motor so that motor Rotate, therefore also can normal use in fire powering-off state tool;
4th, apparatus structure is simple, has explosion-proof without powered part, can be made light, be conducive to mine etc. have it is quick-fried Fry instant fire extinguishment in dangerous environment;
5th, cost of the present invention is low, easy to safeguard.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the principle of the present invention schematic diagram.
Reference numeral is in figure:11- feed devices, 111- feed(raw material)inlets, 112- material outlets, 12- mixing agitators, 13- air motors, 14- wind-driving groutings pump, 15- outlet conduits, 16- valves c;
21- expanding foam solution storage tanks, the pneumatic self priming pumps of 22-, 23- porous crumbs bubble generator, 24- valves b, 25- valve a;
31- colloid storage tanks, 32- valves d, 33- rear pump.
Embodiment
Below in conjunction with drawings and the specific embodiments, the invention will be further described.
It will be seen from figure 1 that apparatus of the present invention mainly include filling system, foam generating system, composite gellant addition System and vehicle-mounted migration system, filling system, foam generating system, composite gellant add-on system are located at vehicle-mounted migration system On;
Filling system includes spiral feeder 11, mixing agitator 12, air motor 13 and wind-driving grouting pump 14, wherein Air motor 13 is rotated by injecting compressed air, and power is provided for spiral feeder 11 and mixing agitator 12, spiral Feed device 11 includes feed(raw material)inlet 111 and material outlet 112, and wherein material outlet 112 is located at 12 entrance of mixing agitator Feedstock transportation is mixed to form slurry, wind-driving grouting pump 14 into mixing agitator 12 by surface, spiral feeder 11 with water For the slurry in mixing agitator 12 to be delivered to grout injection location.
Foam generating system includes expanding foam solution storage tank 21, pneumatic self priming pump 22 and porous crumbs bubble generator 23, with foaming agent It is raw material with water, producing foamed liquid, is stored in expanding foam solution storage tank 21 by a certain percentage, and pneumatic self priming pump 22 is used for expanding foam solution It is pumped in porous crumbs bubble generator 23, there is gas access on porous crumbs bubble generator 23, expanding foam solution is soaked life in porous crumbs Inhibition foam is produced under the action of gas in device 23, can be defeated by the foam outlet being arranged on porous crumbs bubble generator 23 Go out, foam outlet is provided with valve b24, for controlling the output of inhibition foam.
Composite gellant add-on system includes colloid storage tank 31, and colloid storage tank 31 is equipped with water inlet, using gelling agent and Water is raw material, and colloid is made by a certain percentage, and the colloid made is stored in colloid storage tank 31, and passes through supporting rear pump 33 Output;
Wherein mixing agitator 12 steeps generator 23 with porous crumbs by three-way pipeline and valve a25 and connects, wherein one is logical As foam outlet, valve b24 is installed on foam outlet end, and in addition two reduction of fractions to a common denominators do not connect mixing agitator 12 and porous crumbs are soaked Raw device 23, valve a25 are arranged close to one end of mixing agitator 12;Colloid storage tank 31 by pipeline and valve d32 with it is pneumatic The pipeline connection of 14 port of export of grouting pump, valve c16, valve are additionally provided with the segment pipe close to one end of wind-driving grouting pump 14 Door d32 is located at after valve c16.
The equipment can realize that grouting, note inhibition foam, note three-phase froth, the inorganic solidified foam of note, note composite colloid go out Fire, detailed process can be found in Fig. 2;
When only needing Grouting Extinguishment, valve a25, valve b24 and valve d32 are closed, valve c16 is opened, using loess Or flyash is raw material, loess or flyash are added by spiral feeder 11 by feed(raw material)inlet 111, in air motor 13 Under drive so that loess or flyash enter in mixing agitator 12 from material outlet 112, then by mixing agitator 12 Water inlet adds a certain proportion of water, loess or flyash into mixing agitator 12 and is stirred with water in interior mix of mixing agitator 12 Mixing can be adjusted into slurries, the concentration of slurries by the water of addition, under the pumping of wind-driving grouting pump 14 that slurries are defeated Send to grout injection location, so as to fulfill live slurrying and grouting function, i.e. technique 1 in Fig. 2.
When only needing to note inhibition foam fire extinguishing, valve a25, valve c16 and valve d32 are closed, valve b24 is opened, adopts It is raw material with foaming agent and water, is configured to expanding foam solution by a certain percentage and is stored in expanding foam solution storage tank 21, pass through pneumatic self priming pump Expanding foam solution is pumped to porous crumbs by 22 to be steeped in generator 23 with gas (air or noble gas) effect generation inhibition foam, passes through foam Outlet output is to fire area, i.e. technique 2 in Fig. 2;
When needing to irrigate three-phase froth, valve b24, valve d32 are closed, valve a25 and valve c16 is opened, using loess Or flyash is raw material, loess or flyash are added by spiral feeder 11 by feed(raw material)inlet 111, in air motor 13 Under drive so that loess or flyash enter in mixing agitator 12 from material outlet 112, then by mixing agitator 12 Water inlet mixes a certain proportion of water of addition, loess or flyash in blender 12 and is stirred with water in interior mix of mixing agitator 12 Mixing is into slurries;Water and foaming agent are configured to expanding foam solution by a certain percentage, are pumped to expanding foam solution by pneumatic self priming pump 22 Being acted in porous crumbs bubble generator 23 with gas and produce inhibition foam, inhibition foam enters mixing agitator 12 by valve a25, Slurries are mixed with inhibition foam in mixing agitator 12, form three-phase froth, are pumped three-phase froth by wind-driving grouting pump 14 Send to application site, realize the technique 4 in function, that is, Fig. 2 of perfusion three-phase froth.
When needing to irrigate inorganic solidified foam, valve b24, valve d32 are closed, valve a25 and valve c16 is opened, adopts It is raw material with inorganic solidified filler (such as cream water filler), inorganic solidified filler is added by spiral shell by feed(raw material)inlet 111 Feed device 11 is revolved, under the drive of air motor 13 so that inorganic solidified filler enters from material outlet 112 to be mixed In device 12, then mixed by the water inlet on mixing agitator 12 and a certain proportion of water is added in blender 12, it is inorganic solidified Filler is mixed in mixing agitator 12 with water and slurries is made;Water is configured to foam by a certain percentage with foaming agent Liquid, is pumped to porous crumbs by expanding foam solution by pneumatic self priming pump 22 and steeps in generator 23 with gas effect generation inhibition foam, hinder Bubble foam enters mixing agitator 12 by valve a25, and slurries are mixed with inhibition foam in mixing agitator 12, is formed inorganic Cure foam, inorganic solidified foam is pumped to by filling place by wind-driving grouting pump 14, foamed solidification material can be in fill up ground Point cures, and realizes technique 3 in the function, that is, Fig. 2 for irrigating inorganic solidified foam filling and blocking.
When needing to irrigate composite colloid, valve a25, valve b24 and valve c16 are closed, uses gelling agent and water as original Material, is made colloid by a certain percentage, and is exported by supporting delivery pump, realizes technique in function i.e. Fig. 2 of leak stopping and fire extinguishing 5。

Claims (10)

  1. A kind of 1. mining Vehicular multifunctional fire extinguishing device, it is characterised in that:Fire extinguishing dress including car body and on car body Put, the fire extinguishing device includes filling system, foam generating system and composite gellant add-on system;
    The filling system includes feed device (11), mixing agitator (12) and grouting pump;Set on the feed device (11) There are feed(raw material)inlet (111) and material outlet (112), the outlet connection outlet pipeline (15) and valve c (16) of the grouting pump, institute State feed device (11) to be used to feedstock transportation to mixing agitator (12) being mixed with water, the entrance of the grouting pump Connected by pipeline with mixing agitator (12) for mixed slurry to be delivered to grout injection location by outlet conduit (15);
    The foam generating system includes expanding foam solution storage tank (21), pump and porous crumbs bubble generator (23), the porous crumbs and is soaked Raw device (23) is provided with gas access and foam outlet, and the expanding foam solution storage tank (21) is used to store expanding foam solution, and the pump is used for Expanding foam solution is delivered to porous crumbs bubble generator (23), expanding foam solution produces resistance bubble with gas in porous crumbs bubble generator (23) Foam is exported by foam outlet;Valve b (24) is provided with the foam outlet;
    The composite gellant add-on system includes colloid storage tank (31);
    The mixing agitator (12) is steeped generator (23) with porous crumbs by pipeline, valve a (25) and is connected;The colloid storage tank (31) the port of export is equipped with valve d (32) and is connected by pipeline with outlet conduit (15);
    Valve a (25) and valve b (24) is respectively used to control inhibition foam and exports to mixing agitator (12) and output extremely perfusion Point, valve c (16) and valve d (32) are respectively used to the output of control slurry and colloid to irrigating a little.
  2. 2. mining Vehicular multifunctional fire extinguishing device according to claim 1, it is characterised in that:The mixing agitator (12) steep generator (23) with porous crumbs by three-way pipeline to connect, two output terminals of three-way pipeline set valve a respectively (25) and valve b (24), the output terminal equipped with valve b (24) is as foam outlet, and the output terminal equipped with valve a (25) is with mixing Blender (12) connects, and the 3rd end is connected with porous crumbs bubble generator (23).
  3. 3. mining Vehicular multifunctional fire extinguishing device according to claim 2, it is characterised in that:The car body has explosion-proof Property, it is provided with the car body pneumatic flourishing (13), pneumatic flourishing (13) and feed device (11) and mixing agitator (12) connect, for providing power to mixing agitator (12) and feed device (11).
  4. 4. mining Vehicular multifunctional fire extinguishing device according to claim 3, it is characterised in that:The feed device (11) For spiral feeder.
  5. 5. mining Vehicular multifunctional fire extinguishing device according to claim 4, it is characterised in that:The grouting pump is pneumatic Grouting pump (14).
  6. 6. mining Vehicular multifunctional fire extinguishing device according to claim 5, it is characterised in that:In foam generating system Pump as pneumatic self priming pump (22).
  7. 7. mining Vehicular multifunctional fire extinguishing device according to claim 6, it is characterised in that:The original of feed device (11) Material outlet (112) is located at the bottom of feed device (11), and the material outlet (112) is being located at mixing agitator (12) entrance just Top.
  8. 8. mining Vehicular multifunctional fire extinguishing device according to claim 7, it is characterised in that:It is passed through by gas access Gas be air or nitrogen.
  9. 9. mining Vehicular multifunctional fire extinguishing device according to claim 8, it is characterised in that:The raw material for loess, Flyash or inorganic solidified filler.
  10. 10. mining Vehicular multifunctional fire extinguishing device according to claim 9, it is characterised in that:Colloid storage tank (31) is set There is water inlet.
CN201711296889.2A 2017-12-08 2017-12-08 A kind of mining Vehicular multifunctional fire extinguishing device Pending CN107961465A (en)

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Application Number Priority Date Filing Date Title
CN201711296889.2A CN107961465A (en) 2017-12-08 2017-12-08 A kind of mining Vehicular multifunctional fire extinguishing device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109372569A (en) * 2018-12-29 2019-02-22 西安科技大学 A kind of mining fire extinguishing device adapting to different mine fires
CN109772613A (en) * 2019-01-30 2019-05-21 江苏安全技术职业学院 A kind of foam slurry injection device
CN110359930A (en) * 2019-07-20 2019-10-22 湖南科技大学 A kind of grouting system and its fire extinguishing method for easily broken rocks
CN110425000A (en) * 2019-07-26 2019-11-08 徐州安云矿业科技有限公司 Foam, preparation system and the method and instillation process for preventing and treating coal mine gob fire
CN115814319A (en) * 2022-09-27 2023-03-21 陕西陕煤铜川矿业有限公司 Coal mine car-mounted fire extinguishing system and method
CN115887978A (en) * 2022-10-18 2023-04-04 山东科技大学 Liquid nitrogen direct injection and low-temperature foaming intelligent injection system based on mine fire zone characteristics and application method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1569288A (en) * 2004-05-11 2005-01-26 杨海 Filling solidified foam for fire prevention and extinguishing in mine
CN201529335U (en) * 2009-11-10 2010-07-21 义马煤业集团股份有限公司千秋煤矿 Multifunctional integrated fireproofing and extinguishing device
US20130277072A1 (en) * 2012-01-12 2013-10-24 Rusmar Incorporated Method and apparatus for applying rock dust to a mine wall
CN103599607A (en) * 2013-10-22 2014-02-26 中国矿业大学 Apparatus for generating solidified foam fluid for coal mine fire preventing and extinguishing
CN205434754U (en) * 2016-03-11 2016-08-10 河北新概念矿山设备有限公司 Fire extinguishing systems is synthesized in portable coal field fire district
CN207667017U (en) * 2017-12-08 2018-07-31 西安安备特安防科技有限公司 A kind of mining Vehicular multifunctional fire extinguishing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1569288A (en) * 2004-05-11 2005-01-26 杨海 Filling solidified foam for fire prevention and extinguishing in mine
CN201529335U (en) * 2009-11-10 2010-07-21 义马煤业集团股份有限公司千秋煤矿 Multifunctional integrated fireproofing and extinguishing device
US20130277072A1 (en) * 2012-01-12 2013-10-24 Rusmar Incorporated Method and apparatus for applying rock dust to a mine wall
CN103599607A (en) * 2013-10-22 2014-02-26 中国矿业大学 Apparatus for generating solidified foam fluid for coal mine fire preventing and extinguishing
CN205434754U (en) * 2016-03-11 2016-08-10 河北新概念矿山设备有限公司 Fire extinguishing systems is synthesized in portable coal field fire district
CN207667017U (en) * 2017-12-08 2018-07-31 西安安备特安防科技有限公司 A kind of mining Vehicular multifunctional fire extinguishing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
余高明, 国防工业出版社 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109372569A (en) * 2018-12-29 2019-02-22 西安科技大学 A kind of mining fire extinguishing device adapting to different mine fires
CN109372569B (en) * 2018-12-29 2021-01-29 西安科技大学 Mining fire prevention and extinguishing device capable of adapting to different mine fires
CN109772613A (en) * 2019-01-30 2019-05-21 江苏安全技术职业学院 A kind of foam slurry injection device
CN110359930A (en) * 2019-07-20 2019-10-22 湖南科技大学 A kind of grouting system and its fire extinguishing method for easily broken rocks
CN110359930B (en) * 2019-07-20 2020-08-11 湖南科技大学 Grouting system for easily-broken roadway surrounding rock and fire preventing and extinguishing method thereof
CN110425000A (en) * 2019-07-26 2019-11-08 徐州安云矿业科技有限公司 Foam, preparation system and the method and instillation process for preventing and treating coal mine gob fire
CN115814319A (en) * 2022-09-27 2023-03-21 陕西陕煤铜川矿业有限公司 Coal mine car-mounted fire extinguishing system and method
CN115887978A (en) * 2022-10-18 2023-04-04 山东科技大学 Liquid nitrogen direct injection and low-temperature foaming intelligent injection system based on mine fire zone characteristics and application method
CN115887978B (en) * 2022-10-18 2023-11-24 山东科技大学 Liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and application method
US12098640B2 (en) 2022-10-18 2024-09-24 Shandong University Of Science And Technology Liquid nitrogen direct injection and foaming intelligent filling system based on mine fire area characteristics and application method

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Application publication date: 20180427