CN202882814U - Safe drilling pneumatic jet flow three-proofing device for outburst coal layer - Google Patents

Safe drilling pneumatic jet flow three-proofing device for outburst coal layer Download PDF

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Publication number
CN202882814U
CN202882814U CN 201220535793 CN201220535793U CN202882814U CN 202882814 U CN202882814 U CN 202882814U CN 201220535793 CN201220535793 CN 201220535793 CN 201220535793 U CN201220535793 U CN 201220535793U CN 202882814 U CN202882814 U CN 202882814U
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China
Prior art keywords
pneumatic
pressure
dust
crept
coal bed
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Expired - Fee Related
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CN 201220535793
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Chinese (zh)
Inventor
王玉奇
张伟峰
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王玉奇
张伟峰
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Priority to CN 201220535793 priority Critical patent/CN202882814U/en
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Abstract

A safe drilling pneumatic jet flow three-proofing device for an outburst coal layer is mainly sued for solving the problems of hole spraying, coal dust flying and gas over running. A hole-sealing sleeve (1) on the device is fastened in an opening, the tail end of the hole-sealing sleeve (1) is connected with a separator, an automatic deslagging port (5) is arranged on the separator (2), and large blocks of coal slag are sprayed out during separation discharging construction. The tail portion of the separator (2) is sealed by a movable disc (4) formed by clamping two semi-circular discs, and the separator (2) is connected with a dust-removing pipe (1) through a steel wire framework flexible hose (13). An air-compressing connector (10) and a self-pressing connector (7) are arranged on a pneumatic jet flow device (6), the air-compressing connector (10) compresses air to form high-pressure air and enables self-compressing water produced by the self-pressing connector (7) to be atomized in the pneumatic jet flow device (6) and form a high pressure air-water mixed body, the high pressure air-water mixed body is jet to a dust-removing pipe (18) through a nozzle (19) and forms high negative pressure air flow to blow and discharge coal dust and gas to a coal dust and gas separating device (14), and the coal dust and the gas are separated and discharged through a gas exhausting hole (15) and a slag hopper (16). The safe drilling pneumatic jet flow three-proofing device for the outburst coal layer adopts pneumatic jet flow, is simple and convenient to install, and achieves a dust-removing rate of 99%.

Description

Projecting coal bed safety is crept into pneumatic jet three anti-devices
Technical field
The utility model belongs in the underground construction of colliery the coal seam construction drill technical field of drilling, and relates generally to projecting coal bed safety and creeps into pneumatic jet three anti-devices.
Background technology
As everyone knows, eliminating all dangerous accident potential in the coal mining activity under coal mine is one of key content of current national trouble free service.The drilling construction that a practical problem that faces in the down-hole coal excavation operation process at present is exactly the projecting coal bed construction problem that creeps into, particularly soft seam remains the technical barrier that needs solution.Now, no matter what adopt in projecting coal bed drilling construction process is water deslagging wet type drilling technology or wind deslagging dry type drilling technology, have all that spray orifice, coal dust fly upward, three serious security hidden troubles of gas exceeding limit, might cause sudden accident to occur.When particularly adopting water deslagging wet type drilling technology, the spray orifice phenomenon is even more serious.During spray orifice, moment has a large amount of cinder band water to spray together, and the oncoming force is violent, intensity is large, often because operating personnel hide not as good as injured by impact, and a large amount of gas of when spray orifice, often can gushing out, easily cause gas explosion accident.Although the spray orifice situation that wind deslagging dry type drilling technology produces is smaller than the spray orifice intensity that water deslagging wet type drilling technology produces, and can produce a large amount of coal dusts during spray orifice, trickle coal dust is harmful health not only, and operation is crept in the cloud that forms impact.
Summary of the invention
In view of the existing problem of present technology, the spray orifice, the coal dust that produce in the projecting coal bed drilling construction fly upward in order to solve, the gas exceeding limit problem, get rid of hidden danger, the utility model discloses a kind of projecting coal bed safety and creep into pneumatic jet three anti-devices, coal dust, ickings, the gas that produces in the time of can preventing spray orifice and make drilling construction is inhaled in the set locking device and separate discharge in device, get rid of fundamentally that the spray orifice, the coal dust that occur in the drilling construction fly upward, three hidden dangers of gas exceeding limit, improve working environment, ensure safety in production.
In order to realize the foregoing invention purpose, the concrete technical scheme that the utility model is taked is: a kind of projecting coal bed safety is crept into pneumatic jet three anti-devices, mainly is to be made of sealing of hole sleeve, eliminator, rubber seal, movable disk, automatic discharge mouth, pneumatic ejector, self-pressure water swivel, hydraulic pressure pressure meter, water flow control valve, pressure wind joint, distinguished and admirable control valve, blast pressure meter, steel-wire carcass flexible pipe, coal dust and gas separator, steam vent, leakage slag bucket, nozzle, dust removing tube; Wherein, the outside dimension of sealing of hole sleeve is identical with projecting coal bed construction drill diameter, the length of sealing of hole sleeve is according to the Depth determination of projecting coal bed construction drill, the sealing of hole sleeve is fastening to be installed in the construction drill, the tail end of sealing of hole sleeve is equipped with eliminator, and the sealing of hole sleeve adopts the screw thread mode to be connected with eliminator; Described projecting coal bed safety is crept into pneumatic jet three anti-devices, wherein be provided with the automatic discharge mouth on the eliminator, the bulk cinder that sprays in the drilling construction separates by the automatic discharge mouth discharges, the tail end of eliminator seals eliminator with two semi-discs movable disk that forms that interlocks, prevent coal dust, gas leakage, stud with rubber seal on the eliminator inner circle, avoiding drilling rod when running up and the eliminator friction produces spark, be connected by steel-wire carcass flexible pipe employing plug-in type quick connector between eliminator and the dust removing tube; Described projecting coal bed safety is crept into pneumatic jet three anti-devices, wherein be provided with on the pneumatic ejector and press the wind joint, the self-pressure water swivel, distinguished and admirable control valve, water flow control valve, the blast pressure meter, the hydraulic pressure pressure meter, nozzle, pneumatic ejector by snap joint respectively with down-hole wind, water lines links to each other, press the wind joint that the wind pressurization of down-hole is formed high-pressure blast and make in pneumatic ejector, atomizing from setting-out that the self-pressure water swivel produces, form high pressure geomantic omen mixture, high pressure geomantic omen mixture forms the high negative pressure air-flow in pneumatic ejector during flow at high speed after injection stream is in the dust removing tube.The high negative pressure air-flow with the coal dust in the eliminator, gas by when the suction of steel-wire carcass flexible pipe is in the dust removing tube, also that the ickings in the dust removing tube and coal dust is moistening, reach the purpose of dedusting; Described projecting coal bed safety is crept into pneumatic jet three anti-devices, wherein high-pressure blast and from the pressure of setting-out respectively by distinguished and admirable control valve and water flow control valve control, the pressure size shows by hydraulic pressure pressure meter and blast pressure meter; Described projecting coal bed safety is crept into pneumatic jet three anti-devices, wherein the upper end of coal dust and gas separator is provided with the steam vent of separate discharge gas, the bottom of lower end is provided with the leakage slag bucket of the moistening coal dust of separate discharge, ickings, adopt flange to be connected by dust removing tube between the discharging coal dust that suction is come from dust removing tube and the gas, coal dust and gas separator and pneumatic ejector.
The projecting coal bed safety that is used for that the utility model proposes is crept into pneumatic jet three anti-devices, the high negative pressure air flow energy that forms by pneumatic ejector arrives coal dust, ickings and gas suction in coal dust and the gas separator fast, dedusting is timely, can avoid because of accidents such as the untimely plug-hole bit freezings of dust discharge deslagging.Experiment shows that projecting coal bed safety that the utility model proposes creeps into pneumatic jet three anti-devices and can form 0~8Kpa negative pressure, high 2~the 4Kpa of negative pressure that forms than high-pressure water jet, spray orifice, coal dust fly upward the problem with gas exceeding limit when effectively having solved projecting coal bed creeping into.The utility model equipment is simple, and is easy to connect, can utilize the ready-made pressure wind in down-hole as kinetic energy, saves energy consumption, and dust removal efficiency reaches 99%, is specially adapted to the drill site operation.
Description of drawings
Fig. 1 is the utility model three anti-apparatus system schematic diagrames;
Fig. 2 is the utility model movable disk structural representation;
Fig. 3 is the utility model rubber seal schematic diagram.
Among the figure: 1, sealing of hole sleeve; 2, eliminator; 3, rubber seal; 4, movable disk; 5, automatic discharge mouth; 6, pneumatic ejector; 7, self-pressure water swivel; 8, hydraulic pressure pressure meter; 9, water flow control valve; 10, press the wind joint; 11, distinguished and admirable control valve; 12, blast pressure meter; 13, steel-wire carcass flexible pipe; 14, coal dust and gas separator; 15, steam vent; 16, leak slag bucket; 17, nozzle; 18, dust removing tube; 19, drill bit; 20, drilling rod.
The specific embodiment
Provide the specific embodiment of the present utility model below in conjunction with accompanying drawing as follows:
Such as Fig. 1, Fig. 2, shown in Figure 3, projecting coal bed safety described in the utility model is crept into pneumatic jet three anti-devices, mainly is by sealing of hole sleeve 1, eliminator 2, rubber seal 3, movable disk 4, automatic discharge mouth 5, pneumatic ejector 6, self-pressure water swivel 7, hydraulic pressure pressure meter 8, water flow control valve 9, presses wind joint 10, distinguished and admirable control valve 11, blast pressure meter 12, steel-wire carcass flexible pipe 13, coal dust and gas separator 14, steam vent 15, leakage slag bucket 16, nozzle 17, deduster 18 to consist of.The outside dimension of sealing of hole sleeve 1 is identical with projecting coal bed construction drill diameter.When creeping into, use first 19 perforates of major diameter drill bit, the diameter of drill bit 19 must be identical with sealing of hole sleeve 1 outside dimension, and perforate is to appropriate depth backed off after random drilling rod 20.Sealing of hole sleeve 1 must fastening being installed in the construction drill according to the degree of depth of projecting coal bed construction drill.Eliminator 2 adopts screwed connection with sealing of hole sleeve 1, the automatic discharge mouth 5 that arranges on the eliminator 2 is for separating of the bulk cinder that sprays in the discharging drilling construction, the tail end of eliminator 2 seals eliminator 2 with the movable disk 4 that two semi-discs interlock, and prevents coal dust, gas leakage.Stud with rubber seal 3 on the inner circle of eliminator 2, avoid drilling rod 20 when running up and eliminator 2 frictions produce sparks.After eliminator 2 and sealing of hole sleeve 1 connect, check the abrasion condition of the rubber seal 3 in the eliminator 2, and then pack into drill bit 19 and drilling rod 20 in the sealing of hole sleeve 1 and firm drilling equipment.Adopt plug-in type quick connector to connect eliminator 2 and dust removing tube 18 with steel-wire carcass flexible pipe 13, be provided with on the pneumatic ejector 6 and press wind joint 10 and self-pressure water swivel 7, pneumatic ejector 6 links to each other with water lines with the wind of down-hole respectively by snap joint, is connected by dust removing tube 18 between pneumatic ejector 6 and coal dust and the gas separator 14.Coal dust and gas separator 14 are provided with steam vent 15 and leak slag bucket 16, and a flexible pipe and exterior are housed on the steam vent 15.During drilling construction, open distinguished and admirable control valve 11 and water flow control valve 9 and show pressure by blast pressure meter 12 and hydraulic pressure pressure meter 8, and can regulate as required the size that the amount of controlling wind and water is controlled the high negative pressure air-flow.Press wind joint 10 with the high-pressure blast of down-hole make that self-pressure water swivel 7 produces from setting-out in pneumatic ejector 6 interior atomizings, form high pressure geomantic omen mixture.High pressure geomantic omen mixture forms the high negative pressure air-flow after nozzle 17 jets are in the dust removing tube 18 when pneumatic ejector 6 interior flow at high speed, the cinder that sprays in the drilling construction is by the automatic discharge mouth 5 separated discharges on the eliminator 2, and coal dust and gas are discharged into behind the dust removing tube 18 time coal dust and the gas separator 14 also by moistening by the suction of high negative pressure air-flow by steel-wire carcass flexible pipe 13.The gas that enters coal dust and gas separator 14 separates by steam vent 15 to be taken away, and coal dust, ickings are discharged by leaking slag bucket 16.Blowout prevention, coal dust control fly upward, the purpose of anti-gas exceeding limit thereby reached.

Claims (8)

1. projecting coal bed safety is crept into pneumatic jet three anti-devices, it is characterized in that: it mainly is by sealing of hole sleeve (1) that described projecting coal bed safety is crept into pneumatic jet three anti-devices, eliminator (2), rubber seal (3), movable disk (4), automatic discharge mouth (5), pneumatic ejector (6), self-pressure water swivel (7), hydraulic pressure pressure meter (8), water flow control valve (9), press wind joint (10), distinguished and admirable control valve (11), blast pressure meter (12), steel-wire carcass flexible pipe (13), coal dust and gas separator (14), steam vent (15), leak slag bucket (16), nozzle (17), dust removing tube (18) consists of; Wherein sealing of hole sleeve (1) is fastening is installed in the construction drill, sealing of hole sleeve (1) tail end is connected with eliminator (2), eliminator (2) is provided with automatic discharge mouth (5), movable disk (4) sealing that the tail end of eliminator (2) interlocks with two semi-discs, pneumatic ejector (6) is provided with self-pressure water swivel (7), hydraulic pressure pressure meter (8), water flow control valve (9), press wind joint (10), distinguished and admirable control valve (11), blast pressure meter (12), nozzle (17), coal dust and gas separator (14) are provided with steam vent (15), leak slag bucket (16).
2. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, and it is characterized in that: the outside dimension of sealing of hole sleeve (1) is identical with the diameter of projecting coal bed construction drill, and the length of sealing of hole sleeve (1) is pressed the Depth determination of construction drill.
3. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, and it is characterized in that: sealing of hole sleeve (1) adopts the screw thread mode to be connected with eliminator (2).
4. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, it is characterized in that: stud with rubber seal (3) on the inner circle of eliminator (2).
5. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, it is characterized in that: the high-pressure blast in the pneumatic ejector (6) and controlled by distinguished and admirable control valve (11) and water flow control valve (9) respectively from the pressure of setting-out.
6. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, it is characterized in that: press wind joint (10) that the wind pressurization of down-hole is formed high-pressure blast and make by pneumatic ejector (6) in, atomize from setting-out of producing of self-pressure water swivel (7) to form high pressure geomantic omen mixture jet rear formation high negative pressure air-flow in the dust removing tube (18).
7. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, it is characterized in that: be connected by steel-wire carcass flexible pipe (13) employing plug-in type quick connector between eliminator (2) and the dust removing tube (18).
8. projecting coal bed safety according to claim 1 is crept into pneumatic jet three anti-devices, it is characterized in that: be connected by dust removing tube (18) employing flange between pneumatic ejector (6) and coal dust and the gas separator (14).
CN 201220535793 2012-10-19 2012-10-19 Safe drilling pneumatic jet flow three-proofing device for outburst coal layer Expired - Fee Related CN202882814U (en)

Priority Applications (1)

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CN 201220535793 CN202882814U (en) 2012-10-19 2012-10-19 Safe drilling pneumatic jet flow three-proofing device for outburst coal layer

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Application Number Priority Date Filing Date Title
CN 201220535793 CN202882814U (en) 2012-10-19 2012-10-19 Safe drilling pneumatic jet flow three-proofing device for outburst coal layer

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410461A (en) * 2013-08-22 2013-11-27 永贵能源开发有限责任公司 Three-proof device in drilling process
CN103615281A (en) * 2013-12-03 2014-03-05 淮南润成科技股份有限公司 Mining water jet flow orifice dust precipitation device
CN104533513A (en) * 2015-01-07 2015-04-22 河南理工大学 High-pressure abrasive material gas jet coal-breaking pressure relief and permeability improvement equipment and method
CN106812483A (en) * 2017-03-21 2017-06-09 徐文娟 Coal mine drilling geomantic omen jet extraction dust arrester
CN111594260A (en) * 2020-06-03 2020-08-28 徐州工程学院 Device for cleaning residual coal dust in hole sealing section of coal seam drilling

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410461A (en) * 2013-08-22 2013-11-27 永贵能源开发有限责任公司 Three-proof device in drilling process
CN103410461B (en) * 2013-08-22 2015-10-28 永贵能源开发有限责任公司 A kind of three anti-devices of drilling in process
CN103615281A (en) * 2013-12-03 2014-03-05 淮南润成科技股份有限公司 Mining water jet flow orifice dust precipitation device
CN104533513A (en) * 2015-01-07 2015-04-22 河南理工大学 High-pressure abrasive material gas jet coal-breaking pressure relief and permeability improvement equipment and method
CN106812483A (en) * 2017-03-21 2017-06-09 徐文娟 Coal mine drilling geomantic omen jet extraction dust arrester
CN111594260A (en) * 2020-06-03 2020-08-28 徐州工程学院 Device for cleaning residual coal dust in hole sealing section of coal seam drilling

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130417

Termination date: 20151019

EXPY Termination of patent right or utility model