CN102817630B - Gas dust and slag water collector - Google Patents

Gas dust and slag water collector Download PDF

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Publication number
CN102817630B
CN102817630B CN201210121397.0A CN201210121397A CN102817630B CN 102817630 B CN102817630 B CN 102817630B CN 201210121397 A CN201210121397 A CN 201210121397A CN 102817630 B CN102817630 B CN 102817630B
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China
Prior art keywords
water
casing
water pipe
slag
box body
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Expired - Fee Related
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CN201210121397.0A
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CN102817630A (en
Inventor
赵林
蒋和财
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CHENGDU SHENG XIN ELECTRICAL AND MECHANICAL EQUIPMENT Co Ltd
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CHENGDU SHENG XIN ELECTRICAL AND MECHANICAL EQUIPMENT Co Ltd
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Priority to CN201210121397.0A priority Critical patent/CN102817630B/en
Publication of CN102817630A publication Critical patent/CN102817630A/en
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Abstract

The invention relates to a gas dust and slag water collector which comprises a box body, a gas and water slag inlet pipe arranged on the upper part of the side wall of the box body and aslant downwards inserted into the side wall of the box body, a slag discharging hopper arranged on the lower part of the side wall of the box body and aslant downwards inserted into the side wall of the box body, a water outlet arranged on the lower part of the side wall of the box body, a filter net arranged inside the box body and aslant arranged, and an air outlet arranged on the upper end face of the box body, vertically inserted into the box body and used for exhausting, wherein the lower end of the filter net is connected with the slag discharging hopper; water pipes for spraying water are arranged inside the upper end face of the box body, the pipeline of the gas and water slag inlet pipe and the pipeline of the air outlet; a water inlet of a water pipe inside the upper end face of the box body penetrates through the end part of the box body and is connected with an external water source through a movable joint and a quick plug; and at least one nozzle is arranged at the lower end of the water pipe inside the upper end face of the box body. The gas dust and slag water collector has the beneficial effect that potential safety hazard that harmful materials, such as gas, water and boring mud are collected in an underground tunnel so that gas exceeds limit, a large quantity of mixtures of boring mud and water are accumulated is prevented.

Description

Gas dust slag water collector
Technical field
The invention belongs to technical field of coal exploitation, in particular to arranging powder dust to the gas of ejection in boring in extraction borehole work progress and pressure wind, boring mud, water is effectively separated, and prevents from executing in drill-through journey the coal mine special equipment occurring that gas exceeding limit and dust harzard, boring mud and aqueous mixtures wash away, reduce tunnel available ventilation section after deposit buildup.
Background technology
Coal mine gas, dust accident are one of disasters of down-hole, if there is gas, dust accident, not only can heavy damage production environment, and can cause casualties, huge loss is caused to the people, enterprise, country, therefore, elimination gas exceeding limit and dust are the preconditions of pre-gas prevention, dust accident, are also one of important leverages of mine safety production.
Due to geologic sedimentation effect, the toxic and harmfuls such as a large amount of gas are overstock in coal seam, in order to realize safe digging, under normal circumstances, first special gas pumping tunnel will be arranged before digging, adopt underground drill rig construction extraction borehole early excise gas pumping, after extraction is up to standard, digging coal can be started.But in construction extraction borehole process, after particularly many mines enter deep horizontal, coal seam gas-bearing capacity, pressure all will increase, execute brill spray orifice, the gas exceeding limit unsafe problems that time delay spray orifice of even holing causes, the boring hole problem that collapses is also more and more outstanding, in order to overcome collapse hole and gas exceeding limit problem, have to take pressure wind row powder construction technology, the mixture of a large amount of boring mud and water washes away simultaneously, (according to measuring and calculating after deposit buildup, produce the mine of 1,500,000 tons per year for one, the quality about about 4500 tons after the mixture precipitation accumulation of boring boring mud and the water formed is executed every year because administering gas.) reduce tunnel available ventilation section, not only direct impact is caused on mine ventilation, but also cause potential safety hazard to the construction of mine extraction secure quality standardizatio.
In the prior art, the applicant proposed in 2011 09 month 14 the application for a patent for invention that application for a patent for invention number is CN201110271263.2, and this application for a patent for invention proposes the treatment facility (i.e. " gas-pumping gas-water-slag separating device ") that special gas grain slag three is effectively separated.Although the technical scheme of this application for a patent for invention has effective effect in the collection of air water slag with being separated, but the rapid disposal ability of dust is also seemed not enough, this is not mainly because arrange special water injector, particularly this application for a patent for invention in the up-to-date research and development of the applicant and when supporting the use in " spiral catcher " that the present patent application is submitted on the same day, because this " spiral catcher " does not have water dust removal process, in the air water slag of therefore being come by " spiral catcher ", dust is large especially, therefore original application for a patent for invention number is CN201110271263.2 the disposal ability of " gas-pumping gas-water-slag separating device " then shows slightly not enough.
Summary of the invention
The object of the invention is, in order to overcome existing aqueous vapor slag catcher (eliminator) to the deficiency of the disposal ability of dust, to propose a kind of gas dust slag water collector.
Technical scheme of the present invention is: gas dust slag water collector, comprise the casing as main body, the air water slag inlet tube being positioned at insertion wall box under being tilted on wall box top, be positioned at wall box bottom being tilted under insertion wall box dirt-excluding bucket, be positioned at wall box bottom delivery port, be positioned at box house tilt to install and lower end be connected with dirt-excluding bucket filter screen, the gas outlet for being vented of vertical insertion casing that is positioned at casing upper surface, it is characterized in that, the inside of described casing upper surface, water pipe in order to water spray is all installed in the pipeline of in the pipeline of air water slag inlet tube and gas outlet, the water inlet of the water pipe of the inside of described casing upper surface is connected with the water source of quick plug with outside by movable joint through the end of casing, the water pipe lower end of the inside of casing upper surface is provided with at least one nozzle, one end of the water pipe of the inside of end face is connected with the ducted water pipe of air water slag inlet tube in order to supply water to the water pipe of air water slag inlet tube, the other end is connected in order to the piped water supply to gas outlet with the ducted water pipe of gas outlet, the ducted water pipe of described air water slag inlet tube and the ducted water pipe of gas outlet all has the aperture of water spray.
The ducted water pipe of above-mentioned air water slag inlet tube arranges in the shape of a spiral along the axis of tube wall, the ducted water pipe of described gas outlet arranges in the shape of a spiral in same level, pipeline arrangement in " H " shape of the inside of described casing upper surface, the water inlet pipe being somebody's turn to do the pipeline of " H " shape arrangement is positioned at the middle part of the horizontal line of " H " shape water pipe, totally six, described nozzle, six nozzles are arranged on two vertical curves of " H " shape water pipe according to the mode of three.
The invention has the beneficial effects as follows: after the air water slag collected in gas dust slag water collector enters casing by air water slag inlet tube, because gas outlet is connected with extraneous extraction pipeline, casing is made to be in negative pressure state, the pernicious gas with gas entered from air water slag inlet tube is fully taken away, the mixture of water and slag is tilted to lower landing along filter screen under gravity, water then filters the below that filter screen falls into casing and collects at water outlet, etc. reaching, a certain amount of rear delivery port rubber door row outlet that naturally backs down is external, and by the place of water pipe collecting to regulation, boring mud then collects in dirt-excluding bucket place along the downward landing of the upper surface of filter screen, waits to reach that a certain amount of rear naturally to back down slag notch rubber door row outlet external, and can collect the place of regulation.The water pipe all installed in the inside of the casing upper surface in the present embodiment, the pipeline of air water slag inlet tube and in the pipeline of gas outlet is sprayed water, due to these water pipe arms having aperture, therefore the water sprayed forms many places water smoke, make water smoke can reach sufficient mixing with air water slag, effectively serve the effect of depositing dust, water pipe particularly in gas outlet also can form intensive water smoke, and therefore solid dirt not easily passs through.By the device of said structure, effectively can carry out effective separation in the place or container that also can be collected into regulation to the air water slag formed in extraction borehole process, thus prevent gas and the hazardous substances such as water, boring mud from collecting in tunnel thus cause the potential safety hazards such as the mixture bulk deposition of gas exceeding limit and boring mud water.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention.
Fig. 2 is the top view in the A direction of Fig. 1.
Fig. 3 is the nozzle mounting structure schematic diagram in the B direction of Fig. 2.
Description of reference numerals: the water pipe 31 of the inside of air water slag inlet tube 1, nozzle 2, water pipe 3, casing upper surface, the ducted water pipe 32 of air water slag inlet tube, the ducted water pipe 33 of gas outlet, quick plug 4, movable joint 41, gas outlet 5, delivery port 6, delivery port rubber door 7, filter screen 8, dirt-excluding bucket 9, slag notch rubber door 10, fillister head screw 11, door press strip 12, casing 13, gutter 14.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Figure 1, gas dust slag water collector, comprise the casing 13 as main body, the air water slag inlet tube 1 being positioned at insertion casing 13 sidewall under being tilted to of casing 13 side wall upper part, be positioned at casing 13 lower sidewall being tilted under insertion casing 13 sidewall dirt-excluding bucket 9, be positioned at casing 13 lower sidewall delivery port 6, be positioned at casing 13 inner inclination install and lower end be connected with dirt-excluding bucket 9 filter screen 8, the gas outlet 5 for being vented of vertical insertion casing 13 that is positioned at casing 13 upper surface, it is characterized in that, the inside of described casing 13 upper surface, water pipe in order to water spray is all installed in the pipeline of in the pipeline of air water slag inlet tube 1 and gas outlet 5, the water inlet of the water pipe 31 of the inside of described casing 13 upper surface is connected with the water source of quick plug 4 with outside by movable joint 41 through the end of casing 13, water pipe 31 lower end of the inside of casing 13 upper surface is provided with at least one nozzle 2, the present embodiment is six, also can have more and need at least one or more nozzle of setting arbitrarily, one end of the water pipe 31 of the inside of end face is connected with the ducted water pipe 32 of air water slag inlet tube 1 in order to supply water to the water pipe of air water slag inlet tube 1, the other end is connected in order to the piped water supply to gas outlet 5 with the ducted water pipe 33 of gas outlet 5, the ducted water pipe of described air water slag inlet tube 1 and the ducted water pipe of gas outlet 5 all has the aperture of water spray.
In the present embodiment, the ducted water pipe of described air water slag inlet tube 1 arranges in the shape of a spiral along the axis of tube wall, the ducted water pipe of described gas outlet 5 arranges in the shape of a spiral in same level, pipeline arrangement in " H " shape of the inside of described casing 13 upper surface, the water inlet pipe being somebody's turn to do the pipeline of " H " shape arrangement is positioned at the middle part of the horizontal line of " H " shape water pipe, totally six, described nozzle 2, six nozzles 2 are arranged on two vertical curves of " H " shape water pipe according to the mode of three.
Slag notch rubber door 10 bolt is connected on casing 13 by fillister head screw 11 and door press strip 12 in the exit of casing 13 by above-mentioned dirt-excluding bucket 9.
The entrance of above-mentioned delivery port 6 is positioned at the sidewall of casing 13, and outlet level upwards, is bolted the delivery port rubber door 7 being provided with and blocking outlet in exit.
The lower surface of above-mentioned casing 13 also has a gutter 14, and described gutter 14 is by the opening and closing of ball valve control piper.
After said structure is arranged, described casing 13 forms a relative confined space, and described air water slag inlet tube 1 is for inputting the gas slag mixture of well-mixed methane gas, boring mud, dust composition; Described filter screen 8 is for being separated into gas, water and slag by air water slag mixture; Described gas outlet 5 is retracted in gas pipe for overstocking the methane gas be separated in casing 13; Described dirt-excluding bucket 9 is for collecting the boring mud after separation; Described delivery port 6 is for collecting the water after separation; Both sealing containment housing 13 are in negative pressure state to make casing 13 by the cinder notch rubber door 10 near described dirt-excluding bucket 9 and the delivery port rubber door 7 near delivery port 6 respectively.
Above-mentioned casing 13 is cylindrical in the present embodiment, but those of ordinary skill in the art it is to be appreciated that, the Main Function of casing 13 is that the relatively airtight space of formation one is in order to hold the gas slag mixture before being separated and the gas after being separated, water and slag, therefore the concrete shape of casing 13 is not limited to cylindrical, all structures that can form relatively airtight space all can as casing 13 of the present invention, relatively airtight should be understood to be in the present invention gas outlet 5 with extraneous air extractor UNICOM and work time should ensure that the inside of casing 13 is in negative pressure state, the pernicious gas with gas entered from air water slag inlet tube 1 is fully taken away by such guarantee.Those of ordinary skill in the art it is to be appreciated that, the formation of casing 13 itself is one and shows and the process of suggestion, can be made by existing casing manufacturing technology, body structure concrete disclosed in the present embodiment should not be understood to the restriction to casing 13, and all relatively airtight casings with certain negative pressure that can be formed all can be considered as being equivalent to casing 13 disclosed in the present embodiment.
Although the composition structure of the present embodiment disclosed a kind of concrete air water slag inlet tube 1, but those of ordinary skill in the art can be easy to structurally make distortion, as long as the structure be sent to above casing 13 of the aqueous vapor slag stabilized with mixture in the external world can be realized all can be considered as being equivalent to the slag of air water disclosed in the present embodiment inlet tube 1.
The filter screen 8 of the present embodiment can adopt steel frame construction, and the material of filter screen 8 is stainless steels, and the density of screen pack mesh should ensure enough closely to be convenient to better separating liquid and solid.
Although the composition structure of the present embodiment disclosed a kind of concrete dirt-excluding bucket 9, but those of ordinary skill in the art can be easy to structurally make distortion, all can be considered as being equivalent to dirt-excluding bucket 9 disclosed in the present embodiment as long as the structure that casing 13 can cut out dirt-excluding bucket 9 under negative pressure state can be realized.
Although the composition structure of the present embodiment disclosed a kind of concrete delivery port 6, but those of ordinary skill in the art can be easy to structurally make distortion, as long as delivery port 6 can be realized can close delivery port 6 and the structure being convenient to be connected with the water pipe in the external world all can be considered as being equivalent to delivery port 6 disclosed in the present embodiment under negative pressure state.
The course of work and the principle of the gas dust slag water collector of the present embodiment are: when work starts, first after the air water slag collected by miscellaneous equipment (what propose as the applicant applies for " spiral catcher " on the same day with the present patent application) being entered casing 13 by air water slag inlet tube 1, open the exhaust plant be connected with gas outlet 5, because casing 13 is relatively airtight spaces, therefore the pernicious gas with gas entered from air water slag inlet tube 1 is fully taken away, the mixture of water and slag is tilted to lower landing along filter screen 8 under gravity, the inside of casing 13 upper surface simultaneously in the present embodiment, the water pipe all installed in the pipeline of in the pipeline of air water slag inlet tube 1 and gas outlet 5 is sprayed water, due to these water pipe arms having aperture, therefore the water sprayed forms many places water smoke, make water smoke can reach sufficient mixing with air water slag, effectively serve the effect of depositing dust, particularly also can form intensive water smoke at the water pipe 33 of gas outlet 5, therefore solid dirt not easily passs through.The below that filter screen 8 in abundant mixed aqueous vapor slag mixture falls into water tank 13 is collected at delivery port 6 place, waits to reach a certain amount of rear delivery port rubber door 7 that naturally backs down and discharge outside water tank 13, and by the place of water pipe collecting to regulation; Slag then collects in dirt-excluding bucket 9 place along the downward landing of the upper surface of filter screen 8, waits to reach a certain amount of rear slag notch rubber door 10 that naturally backs down and discharge outside water tank 13, and can collect the place of regulation.In order to better discharge the larger water slurry of proportion, can also regular opening water discharge pipe 14.By the device of said structure, effectively can carry out effective separation in the place or container that also can be collected into regulation to the air water slag formed in mash gas pumping drilling process, thus prevent gas and the hazardous substances such as water, boring mud from collecting in tunnel thus cause the potential safety hazards such as the mixture bulk deposition of gas exceeding limit and boring mud water.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.

Claims (2)

1. gas dust slag water collector, comprise the casing (13) as main body, be positioned at the air water slag inlet tube (1) of insertion casing (13) sidewall under being tilted to of casing (13) side wall upper part, be positioned at the dirt-excluding bucket (9) of insertion casing (13) sidewall under being tilted to of casing (13) lower sidewall, be positioned at the delivery port (6) of casing (13) lower sidewall, be positioned at casing (13) inner inclination to install and the filter screen (8) that is connected with dirt-excluding bucket (9) of lower end, be positioned at the gas outlet (5) for being vented of the vertical insertion casing (13) of casing (13) upper surface, it is characterized in that, the inside of described casing (13) upper surface, water pipe in order to water spray is all installed in the pipeline of in the pipeline of air water slag inlet tube (1) and gas outlet (5), the water inlet of the water pipe (31) of the inside of described casing (13) upper surface is connected with the water source of outside by movable joint (41) and quick plug (4) through the end of casing (13), water pipe (31) lower end of the inside of casing (13) upper surface is provided with at least one nozzle (2), one end of the water pipe (31) of the inside of end face is connected in order to supply water to the water pipe of air water slag inlet tube (1) with the ducted water pipe (32) of air water slag inlet tube (1), the other end is connected in order to the piped water supply to gas outlet (5) with the ducted water pipe (33) of gas outlet (5), the ducted water pipe of described air water slag inlet tube (1) and the ducted water pipe of gas outlet (5) all has the aperture of water spray.
2. gas dust slag water collector according to claim 1, it is characterized in that, the ducted water pipe of described air water slag inlet tube (1) arranges in the shape of a spiral along the axis of tube wall, the ducted water pipe of described gas outlet (5) arranges in the shape of a spiral in same level, pipeline arrangement in " H " shape of the inside of described casing (13) upper surface, the water inlet pipe being somebody's turn to do the pipeline of " H " shape arrangement is positioned at the middle part of the horizontal line of " H " shape water pipe, totally six, described nozzle, six nozzles (2) are arranged on two vertical curves of " H " shape water pipe according to the mode on three, one side.
CN201210121397.0A 2012-04-23 2012-04-23 Gas dust and slag water collector Expired - Fee Related CN102817630B (en)

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Application Number Priority Date Filing Date Title
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CN102817630B true CN102817630B (en) 2015-04-22

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CN110608004A (en) * 2019-10-22 2019-12-24 贵州盘江精煤股份有限公司 Gas-slag separating device for drilling
CN111364946B (en) * 2020-03-18 2024-01-19 河南理工大学 Wing type air-water-slag separation device with drill rod sealing function and application method thereof
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101122236A (en) * 2007-06-12 2008-02-13 淮南矿业(集团)有限责任公司 Gas-coal separation equipment applied to outburst coal seam safety drilling blowout prevention system
CN201310373Y (en) * 2008-12-12 2009-09-16 淮南矿业(集团)有限责任公司 Coal gas purifier for safety protection system for drilling and spraying orifice
CN201513200U (en) * 2009-10-16 2010-06-23 李胜祥 Negative-pressure adjustable low-position water-inflow large-displacement automatic slag discharging and water draining device
CN201763368U (en) * 2010-09-17 2011-03-16 郑州市光力科技发展有限公司 Dust removal box for underground boring construction
CN201857992U (en) * 2010-11-23 2011-06-08 王崇民 Dust collector capable of preventing gas outburst
CN102392676A (en) * 2011-09-14 2012-03-28 成都晟鑫机电设备有限公司 Integrated device for separating gas, water and slag
CN202560298U (en) * 2012-04-23 2012-11-28 成都晟鑫机电设备有限公司 Gas dust slag water collector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101122236A (en) * 2007-06-12 2008-02-13 淮南矿业(集团)有限责任公司 Gas-coal separation equipment applied to outburst coal seam safety drilling blowout prevention system
CN201310373Y (en) * 2008-12-12 2009-09-16 淮南矿业(集团)有限责任公司 Coal gas purifier for safety protection system for drilling and spraying orifice
CN201513200U (en) * 2009-10-16 2010-06-23 李胜祥 Negative-pressure adjustable low-position water-inflow large-displacement automatic slag discharging and water draining device
CN201763368U (en) * 2010-09-17 2011-03-16 郑州市光力科技发展有限公司 Dust removal box for underground boring construction
CN201857992U (en) * 2010-11-23 2011-06-08 王崇民 Dust collector capable of preventing gas outburst
CN102392676A (en) * 2011-09-14 2012-03-28 成都晟鑫机电设备有限公司 Integrated device for separating gas, water and slag
CN202560298U (en) * 2012-04-23 2012-11-28 成都晟鑫机电设备有限公司 Gas dust slag water collector

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