CN203769838U - Efficient dust-falling device for underground comprehensive tunneling roadway in coal mine - Google Patents
Efficient dust-falling device for underground comprehensive tunneling roadway in coal mine Download PDFInfo
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- CN203769838U CN203769838U CN201420169491.8U CN201420169491U CN203769838U CN 203769838 U CN203769838 U CN 203769838U CN 201420169491 U CN201420169491 U CN 201420169491U CN 203769838 U CN203769838 U CN 203769838U
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Abstract
The utility model discloses an efficient dust-falling device for an underground comprehensive tunneling roadway in a coal mine. The efficient dust-falling device mainly comprises a tunneling machine efficient spraying dust-falling module, a belt conveyor spraying dust-falling module and a return airway automatic spraying dust-falling module. The tunneling machine efficient spraying dust-falling module comprises an oil pressure and water pressure conversion device and an air and water linkage spraying device. The belt conveyor spraying dust-falling module comprises a coal rock conveying automatic spraying device. The return airway automatic spraying dust-falling module comprises a dust concentration overrun automatic spraying dust-falling device. According to the efficient dust-falling device, dust at a cutting head of a comprehensive tunneling machine, dust at the conveying position for coal rocks of a belt and dust at a return airway are effectively controlled, and the dust produced in the operation process of the working surface of the comprehensive tunneling machine can be effectively reduced. Furthermore, the efficient dust-falling device is low in cost, safe and reliable and has important practical significance for controlling pneumoconiosis morbidity and dust explosion accidents, strengthening labor protection in the coal mine, improving safe and civilized production and accelerating the sustainable and stable development of the coal industry.
Description
Technical field
The utility model belongs to colliery engineering technical field, relates under a kind of coal mine and combines and dig the efficient device for reducing dust in tunnel.
Background technology
In coal production process, dust is one of disaster perplexing safety in production.Producing dirt is the characteristic properties in coal crushing process, and the operation process of development machine digging laneway is one and produces dirt process, and tunnelling ventilation distance is long, and dust is difficult for getting rid of.The dirt that it not only has a strong impact on colliery produces safety, and serious threat miner's is healthy.The dust in tunnelling process, operation being produced, if do not taked dust prevention, can cause workman to obtain anthraco-silicosis or anthracosis, even may cause the generation of dust explosion accident, directly affects mine safety production and benefit.Therefore, effectively control and reduce fully mechanized workface dust concentration, stopping coal dust accident, to promoting Safety of Coal Mine Production, ensureing that worker health is significant.
The link of fully mechanized workface product dirt has cutting head of roadheader brute force coal petrography cutting, coal petrography whereabouts or top board local fall, shipment or delivery coal petrography, machine carrying and helps clearly supporting, and the next dust etc. of kicking up is blown in ventilation.The powerful coal petrography cutting of cutting head of roadheader wherein, transporter fortune coal, and transfer point coal breakage is main product dirt link.
In the work of excavation face in coal mine dust prevention and control, atomizing de-dusting is an important ring.By investigation, find, the existing development machine spray precipitation method of China and the ubiquitous problem of dust falling device are that depositing dust efficiency is not high, and the sedimentation rate of respirable dust and full dirt is low.Main cause is that spraying system design and parameter are unreasonable, has affected atomizing de-dusting effect.
In development machine atomizing de-dusting prior art, excavation face in coal mine dust Control method is mainly that the devices such as high-pressure hydraulic pump, water tank, fire-proof motor, switch are placed on a flat car, after development machine and elevating conveyor, parallel with development machine, by high-pressure hydraulic pump, obtain water under high pressure.The feature of this method is that device is placed on piston shoes, and and then development machine, elevating conveyor towing are advanced.Shortcoming is distance, operation inconvenience, and volume is large, and flow is unadjustable; Or high-pressure hydraulic pump, water tank, fire-proof motor, switch etc. are placed on machine body of boring machine.By high-pressure hydraulic pump, obtain water under high pressure.The shortcoming of this scheme is that atomization mechanism volume is large, Heavy Weight, and operation inconvenience, flow is unadjustable.
In belt conveyor and transfer point atomizing de-dusting prior art, be mainly spray sprinkler dust suppression, deduster dedusting etc.Wherein, deduster dedusting has very high efficiency of dust collection, but deduster dedusting one-time investment is high, operation and maintenance cost is high, volume is large, heavier, and high to surrounding environment requirement, the watering dust suppression of comparing is because investment is little, and operation maintenance amount is very little, and dust suppression efficiency is also good, in current belt transportation system, widely use.Belt conveyor atomizing de-dusting was all to use hand spray in the past, but when opened spraying, whom is responsible for switch by and sprays, and responsibility falls all the time less than crucial point, caused use undesired.Thereby existing spraying in transportation not open in time, dust-laying effect is not good; During belt (or without coal) out of service, close not in time, cause belt creep, coal bunker runs the problems such as storehouse because not running coal.
After the dust that colliery produces in to dust production resource and fortune coal process is controlled, in fully mechanized workface return, still there is dust to exist, in channel of coal mining working surface face return aircourse, all installed in accordance with regulations purification water curtain, be used for purifying distinguished and admirable, improve operation place labour health condition, but when open spraying, whom is responsible for switch by sprays, responsibility falls all the time less than crucial point, causes use undesired, and dust-proof effect is not good.
Utility model content
The purpose of this utility model is to overcome the defect that above-mentioned technology exists, and provides under a kind of coal mine and combines and dig the efficient device for reducing dust in tunnel.Its concrete technical scheme is:
Under a kind of coal mine, combine the efficient device for reducing dust in pick tunnel, mainly comprise development machine efficient spray depositing dust module 1 and belt conveyor atomizing de-dusting module 2 and return airway auto spraying depositing dust module 3, development machine efficient spray depositing dust module 1 comprises oil pressure-hydraulic pressure conversion equipment 4 and wind power ganged atomization mechanism 5, belt conveyor atomizing de-dusting module 2 comprises coal petrography transportation automatic sprayer 6, and return airway auto spraying depositing dust module 3 comprises the dust concentration automatic spray dust removal device 7 that transfinites;
In development machine efficient spray depositing dust module, oil pressure-hydraulic pressure conversion equipment 4 is arranged on development machine, use the hydraulic oil on development machine, utilize development machine that high pressure liquid force feed is provided, by pressure flow hybrid control valve, control hydraulic pump 8, static pressure water or low-pressure water are by inlet pipeline 9, water reducing valve and water filter flow into hydraulic pump 8, development machine hydraulic oil flows into hydraulic pump 8 by pipeline road 10, hydraulic pump 8 changes into water under high pressure by the energy of hydraulic oil, access atomization mechanism after water under high pressure flows out by outlet pipeline 11, and development machine hydraulic oil flows back to development machine oil box by fuel-displaced pipeline 12, water under high pressure outlet pipeline 11 is connected with atomization mechanism with air feed joint 15 by water supply joint 14 respectively jointly with down-hole air-supply pipeline 13, atomization mechanism comprises atomizer passgae 16,3 D stereo spraying frame 17 and some nozzles 18, and development machine efficient spray depositing dust module 1 is synchronizeed start-stop with cutting head of roadheader 19,
Belt conveyor atomizing de-dusting module is that spraying water pipe 20 is set above travelling belt 28, every 5m, one horizontal water pipe 21 is set, and some shower nozzles 22 are installed on spraying water pipe 20; Spraying water pipe is connected with underground mine water supply pipe network 24 by hydraulic gun 23, hydraulic gun trigger 25 places connect a baffle plate 26, during coal petrography 27 process belt 28, touch baffle plate 26, baffle plate 26 is lifted, afterwards trigger hydraulic gun snap switch 29, spraying is opened automatically, simultaneously on belt 28 the more baffle plates 26 of coal petrography 27 amount to lift amplitude larger;
Sensor of dust concentration 30, main control box 31 and explosion-proof switch 32 are connected successively, and arc spraying frame 33 is connected with high pressure water station 35, and spraying frame 33 both sides are provided with infrared ray sensor 34.
Further preferably, oil pressure-hydraulic pressure conversion equipment the key technical indexes in development machine efficient spray depositing dust module: input oil pressure 8～12MPa, input oil mass 50～70L/min, input hydraulic pressure < 1MPa, output spraying hydraulic pressure 10～15MPa, output spray water flow 30～50L/min, 60 °, each atomizer spray angle, effective range 2～4m, atomized particle size 30～150 μ m, droplet speed 25～35m/s.
Further preferably, in belt conveyor atomizing de-dusting module, spraying water pipe 600mm place above travelling belt arranges, every 5m or every 3 shower nozzles, (a horizontal spraying water pipe is set, length covers the full section of belt, laterally spraying water pipe is generally installed 4 shower nozzles, hydraulic gun trigger place link baffle plate lead to for waste and old belt madely, baffle plate is of a size of 500 * 200mm.
Further preferably, in return airway auto spraying depositing dust module, spray bracket adopts arc spraying frame, and it is 7 that shower nozzle number is set.
Compared with prior art, the beneficial effects of the utility model are:
(1) oil pressure-hydraulic pressure conversion equipment volume is very little, lightweight, and oil pressure-hydraulic pressure conversion efficiency is high, does not affect development machine work.
(2) development machine driver can regulate arbitrarily water pressure and the discharge of development machine spraying, reach should depositing dust efficiency height the good object of sight line again.
(3) wind power ganged spraying, atomizing effect is good.
(4) 3 D stereo spraying, shrouds cutterhead.
(5) spraying size is controlled in belt conveyor spraying automatically, and safe and reliable, cost is low.
(6) the dust auto spraying dust falling system design consideration human engineering principle that transfinites, alleviates personnel labor intensity, safe and reliable.
The utility model by fully-mechanized digging machine cutterhead place, coal petrography belt-conveying place and return airway everywhere dust effectively control in addition; can do the dust producing while effectively reducing fully mechanized workface operation; cost is low; safe and reliable; for controlling the pneumoconiosis incidence of disease and dust explosion accident, strengthen colliery labour protection, do security civilization well and produce, accelerate the continual and steady development of coal industry and have important practical significance.
Accompanying drawing explanation
Fig. 1 combines the system block diagram of the pick efficient device for reducing dust in tunnel and method under coal mine;
Fig. 2 is oil pressure-hydraulic pressure conversion equipment schematic diagram;
Fig. 3 is, wherein, Fig. 3 a is wind power ganged three-dimensional spraying top view, and Fig. 3 b is wind power ganged three-dimensional spraying lateral view;
Fig. 4 is coal petrography transportation automatic sprayer schematic diagram;
Fig. 5 is the dust concentration automatic spray dust removal device schematic diagram that transfinites.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in more detail.
Under coal mine, combine the efficient dust-removing method in pick tunnel, mainly comprise development machine efficient spray depositing dust module 1 and belt conveyor atomizing de-dusting module 2 and return airway auto spraying depositing dust module 3.Development machine efficient spray depositing dust module comprises oil pressure-hydraulic pressure conversion equipment 4 and wind power ganged atomization mechanism 5.Belt conveyor atomizing de-dusting module 2 comprises coal petrography transportation automatic sprayer 6.Return airway auto spraying depositing dust module 3 comprises the dust concentration automatic spray dust removal device 7 that transfinites.
The hydraulic oil that in development machine efficient spray depositing dust module, oil pressure-hydraulic pressure conversion equipment 4 uses on development machine, drives hydraulic pump 8, obtains water under high pressure.Hydraulic pump 8, because of hydraulic oil periodic duty in pump, does not affect the normal work of pump in water-stressed conditions, and because hydraulic pump 8 has refrigerating function, so device oil temperature in running can not rise.Utilize development machine that high pressure liquid force feed is provided, by pressure flow hybrid control valve, control hydraulic pump 8, static pressure water or low-pressure water flow into hydraulic pump 8 by inlet pipeline 9, water reducing valve and water filter, development machine hydraulic oil flows into hydraulic pump 8 by pipeline road 10, hydraulic pump 8 changes into water under high pressure by the energy of hydraulic oil, water under high pressure is flowed out and is connect atomization mechanism by outlet pipeline 11, and development machine hydraulic oil flows back to development machine oil box by fuel-displaced pipeline 12.Water under high pressure outlet pipeline 11 is connected with atomization mechanism with air feed joint 15 by water supply joint 14 respectively jointly with down-hole air-supply pipeline 13, realizes wind power ganged spraying, increases atomizing effect.Atomization mechanism comprises atomizer passgae 16,3 D stereo spraying frame 17 and some nozzles 18, and development machine efficient spray depositing dust module is synchronizeed start-stop with cutting head of roadheader 19, realize auto spraying depositing dust.
Belt conveyor atomizing de-dusting module is that broken coal petrography is while passing through belt fortune coal by elevating conveyor, easily produce coal dust, above belt, 60cm place arranges spraying water pipe 20, is the amount of conserving water, every 5m, one horizontal water pipe 21 is set, some shower nozzles 22 are installed on spraying water pipe 20.Spraying water pipe is connected with underground mine water supply pipe network 24 by hydraulic gun 23, hydraulic gun trigger 25 places connect a baffle plate 26, when starting coal petrography 27 through belt 28, belt touches baffle plate 26, baffle plate 26 is lifted, afterwards trigger hydraulic gun snap switch 29, spraying is opened automatically, and it is larger that the more baffle plates 26 of while coal petrography 27 amount lift amplitude, the corresponding increase of spray amount, plays the automatic control big or small object of spraying.
Return airway auto spraying depositing dust module is when distinguished and admirable process sensor of dust concentration 30, sensor of dust concentration 30 detects dust concentration and reaches upper the prescribing a time limit that gear numbering is set, main control box 31 can start explosion-proof switch 32, make arc spraying frame 33 be connected to high pressure pumping plant 35, the distinguished and admirable atomizing de-dusting that carries out to this position.Sensor of dust concentration 30 detects lower the prescribing a time limit that dust concentration is set lower than same gear numbering, and main control box 31 is closed explosion-proof switch 32, and spraying is closed automatically.For convenience of personnel or mine car etc. when spraying, can pass through, arc spraying frame 33 both sides are provided with infrared ray sensor 34, when having personnel or mine car etc. to pass through, infrared ray sensor 34 sends signal, make circuit produce a weak current, through amplifying, deliver to main control box 20 control explosion-proof switch 32 work, spraying is closed, personnel or mine car etc. through after, spraying reopens.
The above; it is only the preferably specific embodiment of the utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (4)
1. under a coal mine, combine the efficient device for reducing dust in pick tunnel, it is characterized in that, mainly comprise development machine efficient spray depositing dust module (1) and belt conveyor atomizing de-dusting module (2) and return airway auto spraying depositing dust module (3), development machine efficient spray depositing dust module (1) comprises oil pressure-hydraulic pressure conversion equipment (4) and wind power ganged atomization mechanism (5), belt conveyor atomizing de-dusting module (2) comprises coal petrography transportation automatic sprayer (6), and return airway auto spraying depositing dust module (3) comprises the dust concentration automatic spray dust removal device (7) that transfinites;
In development machine efficient spray depositing dust module, oil pressure-hydraulic pressure conversion equipment (4) is arranged on development machine, use the hydraulic oil on development machine, utilize development machine that high pressure liquid force feed is provided, by pressure flow hybrid control valve, control hydraulic pump (8), static pressure water or low-pressure water are by inlet pipeline (9), water reducing valve and water filter flow into hydraulic pump (8), development machine hydraulic oil flows into hydraulic pump (8) by pipeline road (10), hydraulic pump (8) changes into water under high pressure by the energy of hydraulic oil, access atomization mechanism after water under high pressure flows out by outlet pipeline (11), and development machine hydraulic oil flows back to development machine oil box by fuel-displaced pipeline (12), water under high pressure outlet pipeline (11) is connected with atomization mechanism with air feed joint (15) by water supply joint (14) respectively jointly with down-hole air-supply pipeline (13), atomization mechanism comprises atomizer passgae (16), 3 D stereo spraying frame (17) and some nozzles (18), and development machine efficient spray depositing dust module (1) is synchronizeed start-stop with cutting head of roadheader (19),
Belt conveyor atomizing de-dusting module is, in travelling belt (28) top, spraying water pipe (20) is set, and every 5m, one horizontal water pipe (21) is set, the upper some shower nozzles (22) of installing of spraying water pipe (20); Spraying water pipe is connected with underground mine water supply pipe network (24) by hydraulic gun (23), hydraulic gun trigger (25) locates to connect a baffle plate (26), during coal petrography (27) process belt (28), touch baffle plate (26), baffle plate (26) is lifted, afterwards trigger hydraulic gun snap switch (29), spraying is opened automatically, and it is larger that upper coal petrography (27) the more baffle plates of amount of while belt (28) (26) lift amplitude;
Sensor of dust concentration (30), main control box (31) and explosion-proof switch (32) are connected successively, and arc spraying frame (33) is connected with high pressure water station (35), and spraying frame (33) both sides are provided with infrared ray sensor (34).
2. under coal mine according to claim 1, combine the efficient device for reducing dust in pick tunnel, it is characterized in that, oil pressure-hydraulic pressure conversion equipment the key technical indexes in development machine efficient spray depositing dust module: input oil pressure 8～12MPa, input oil mass 50～70L/min, input hydraulic pressure < 1MPa, output spraying hydraulic pressure 10～15MPa, output spray water flow 30～50L/min, 60 °, each atomizer spray angle, effective range 2～4m, atomized particle size 30～150 μ m, droplet speed 25～35m/s.
3. under coal mine according to claim 1, combine the efficient device for reducing dust in pick tunnel, it is characterized in that, in belt conveyor atomizing de-dusting module, spraying water pipe 600mm place above travelling belt arranges, every 5m or every 3 shower nozzles, one horizontal spraying water pipe is set, and length covers the full section of belt, and laterally spraying water pipe is installed 4 shower nozzles, hydraulic gun trigger place link baffle plate lead to for waste and old belt madely, baffle plate is of a size of 500 * 200mm.
4. under coal mine according to claim 1, combine the efficient device for reducing dust in pick tunnel, it is characterized in that, in return airway auto spraying depositing dust module, spray bracket adopts arc spraying frame, and it is 7 that shower nozzle number is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169491.8U CN203769838U (en) | 2014-04-01 | 2014-04-01 | Efficient dust-falling device for underground comprehensive tunneling roadway in coal mine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420169491.8U CN203769838U (en) | 2014-04-01 | 2014-04-01 | Efficient dust-falling device for underground comprehensive tunneling roadway in coal mine |
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| CN203769838U true CN203769838U (en) | 2014-08-13 |
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| CN201420169491.8U Expired - Fee Related CN203769838U (en) | 2014-04-01 | 2014-04-01 | Efficient dust-falling device for underground comprehensive tunneling roadway in coal mine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373124A (en) * | 2014-09-11 | 2015-02-25 | 山东科技大学 | Dust preventing device of machine digging surface and dust preventing method |
| CN107100621A (en) * | 2017-04-24 | 2017-08-29 | 张廷民 | The efficient device for reducing dust of development machine |
| CN114414279A (en) * | 2022-01-18 | 2022-04-29 | 山东科技大学 | Method for testing service performance of foam dust settling device for coal mine underground and tunnel |
-
2014
- 2014-04-01 CN CN201420169491.8U patent/CN203769838U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373124A (en) * | 2014-09-11 | 2015-02-25 | 山东科技大学 | Dust preventing device of machine digging surface and dust preventing method |
| CN107100621A (en) * | 2017-04-24 | 2017-08-29 | 张廷民 | The efficient device for reducing dust of development machine |
| CN114414279A (en) * | 2022-01-18 | 2022-04-29 | 山东科技大学 | Method for testing service performance of foam dust settling device for coal mine underground and tunnel |
| CN114414279B (en) * | 2022-01-18 | 2024-01-26 | 山东科技大学 | Test method for service performance of foam dust settling device for underground coal mine and tunnel |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150401 |
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| EXPY | Termination of patent right or utility model |