CN101696637B - Coal and gas separation bin and method thereof - Google Patents
Coal and gas separation bin and method thereof Download PDFInfo
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- CN101696637B CN101696637B CN2009100357272A CN200910035727A CN101696637B CN 101696637 B CN101696637 B CN 101696637B CN 2009100357272 A CN2009100357272 A CN 2009100357272A CN 200910035727 A CN200910035727 A CN 200910035727A CN 101696637 B CN101696637 B CN 101696637B
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Abstract
The invention relates to a coal and gas separation bin and a method thereof. The separation bin is integrally poured with concrete reinforced by anchor rods; the bottom of the separation bin is funnel-shaped; the lower part of the separation bin is a coal discharge pipe, and the upper part of the separation bin is a cover; the top part of the cover of the separation bin is provided with a jet pipe joint and a drawing pipe joint; and a coal discharge opening of the coal discharge pipe of the separation bin is provided with a counterbalance type bin gate. Jet materials protruding out of an excitation borehole are introduced into the separation bin, the drawing pipe is used for drawing gas so that the interior of the separation bin is in a negative pressure state to weaken the jet flow impact and achieve the separation of the coal and the gas; the coal entering the separation bin automatically opens the coal discharge opening of the separation bin and flows out under the action of gravity, and then the coal is carried away by a transporter on a lower laneway; and when the coal in the bin is emptied, under the action of a counterbalance at the coal discharge opening, the coal discharge opening is closed automatically so that the interior of the bin is kept in the negative pressure state. The jet materials with repeated coal and gas protrusions on a coal layer in the excitation borehole are separated to achieve that tens of thousands of coals are mined through a single hole. The coal and gas separation bin has a simple structure, simple and convenient method, and has easy construction and good effect.
Description
Technical field
The present invention relates to a kind of outstanding coal mining of boring and mash gas extraction technology, the especially a kind of coal of low-permeability, low-intensity, high gas and coal and the gas separation bin and method of the projecting coal bed boring jet flow of gas of being applicable to of exciting.
Background technology
Coal and gas are outstanding to be a big disaster of well worker Coal Production.Outstanding strong coal body destruction, coal and the gas of being accompanied by sprays, and formation outburst hole and certain release scope, it all is to discharge naturally via the tunnel that big-and-middle-sized coal and gas outstanding coal and gas took place in the past, underground operators life and roadway and electromechanical equipment are damaged, even generation gas explosion, enlarge the disaster scope, cause great casualties and property loss.It is less to utilize hydraulic flushing in hole to bring out the outstanding intensity of coal and gas, generally carries out the separation of coal, water, gas by small-sized eliminator, uncontrollable with separate a large amount of outstanding jet flow thing coal and gas.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of simple in structurely, method is easy, safe and reliable coal and gas separation bin and method.
Technical scheme: coal of the present invention and gas separation bin, comprise that being located at brattice way is funnelform concrete with bottom between the tunnel, bottom and separates warehouse, the bottom of concrete separation warehouse is provided with through anchor pole, the fixed separation bin of concrete puts the coal pipe, its top is provided with through anchor pole, the fixed separation bin lid of concrete, and the separation bin tops is respectively equipped with jet pipe joint that links to each other with jet pipe and the releasing pipe joint that links to each other with releasing pipe; The coal discharge outlet that separation bin is put the coal pipe is provided with the counterweight system door; Described concrete separates the interior diameter of warehouse greater than 2 meters, and interior sectional area is greater than 100 times of sectional areas in the jet pipe.
Coal of the present invention and gas separation method:
A, at first excavate a dark vertical between brattice way and tunnel, bottom, boring and insert anchor pole around the dark vertical borehole wall wouldn't be reinforced;
B, in dark vertical bottom center separation bin is set and puts the coal pipe, anchor pole in the dark vertical around it is outwards extracted out, made the close separation bin in anchor pole outer end put the outer wall of coal pipe, annotate the fixed anchor pole of mortar afterwards, after the good template of tunnel, bottom frame, to coal discharge outlet borehole wall fluid concrete;
C, put at separation bin and to set up the bottom that joins with it on the coal pipe and be funnelform concrete separation bin phantom plate, section construction, anchor pole around the borehole wall is outwards extracted near concrete separation bin phantom plate, annotate the fixed anchor pole of mortar afterwards, fluid concrete between the separation bin phantom plate and the dark vertical borehole wall, fixed formation concrete separates warehouse;
D, separation bin lid is placed on the concrete concrete separates on the warehouse, anchor pole around the borehole wall is outwards extracted near concrete separation bin lid, annotate the fixed anchor pole of mortar afterwards, fluid concrete between the separation bin phantom plate and the dark vertical borehole wall makes separation bin lid, concrete separate warehouse and put the firm formation separation bin that strikes up partnership of coal pipe;
E, the jet pipe that will excite boring coal and gas to give prominence to are connected on the jet pipe joint of separation bin, and the gas drainage under suction pipeline are connected on the releasing pipe joint of separation bin;
F, give prominence to gas, when beginning to spray coal and gas, go into separation bin, simultaneously the gas in the separation bin is carried out pump drainage, make separation bin be in negative pressure state by the jet pipe pass when exciting boring that coal takes place;
The Weight type door is opened in g, the coal free-falling that enters separation bin automatically under the effect of gravity, put the coal pipe through separation bin and outwards flow out, and will emit coal and transport by being located at belt conveyer in the lane, bottom;
When the coal emptying in the separation bin, the coal discharge outlet that separation bin is put the coal pipe is closed under the effect of counterweight automatically, makes to keep negative pressure state in the separation bin.
Beneficial effect: will excite boring that a large amount of coals and the outstanding coal and artificial the separating of gas jet flow thing of gas take place, because the separation bin cross section is big, reduced jet speed, simultaneously the gas in the separation bin is carried out extraction, make separation bin be in negative pressure state, weakened the jet flow impact, and extracted methane gas out, the realization coal separates with methane gas.Can effectively control and separate the outstanding jet flow thing of coal and gas, avoid underground operators life and roadway and electromechanical equipment are damaged, prevent gas explosion.And can improve boring outstanding coal and gas output greatly, the single hole coal mining output of general medium-thickness seam can reach 10,000 tons.It is simple in structure, and method is easy, and easily construction is effective, has practicality widely.
Description of drawings
Fig. 1 is the structural representation of coal of the present invention and gas separation bin.
Among the figure: 1-jet pipe joint; 2-releasing pipe joint; 3-separation bin lid; The 4-concrete separates warehouse; The 5-separation bin is put the coal pipe; The 6-anchor pole; The 7-brattice way; Tunnel, 8-bottom.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
As shown in Figure 1, build the bottom and be funnelform concrete and separate warehouse 4 between brattice way 7 and tunnel, bottom 8, the bottom that concrete separates warehouse 4 is built separation bin and is put coal pipe 5, and the coal discharge outlet that separation bin is put coal pipe 5 is provided with the counterweight system door; Concrete separates warehouse 4 tops and builds separation bin lid 3, and the top of separation bin lid 3 is respectively equipped with jet pipe joint 1 and the releasing pipe joint 2 that links to each other with releasing pipe; Concrete separates warehouse 4 and is formed by concreting, its interior diameter is greater than 2 meters, be located at concrete respectively and separate separation bin lid 3 and the separation bin of warehouse 4 about and put coal pipe 5 usefulness metals and manufacture and form, concrete separates warehouse 4, separation bin lid 3 and separation bin puts the fixed anchor pole 6 of mortar of coal pipe 5 peripheries and the separation bin of an integral body of concrete formation.
Coal of the present invention and gas separation method: between brattice way 7, tunnel, bottom 8, adopt conventional anti-well construction method to excavate a dark vertical, around the dark vertical borehole wall, beat armature boring, insert anchor pole 6, wouldn't reinforce; With hanging scaffold separation bin is put coal pipe 5 and be placed into desired location, pull out separation bin and put the outer wall that anchor pole to the separation bin in the dark vertical wall around the coal pipe 5 is put coal pipe 5, and it is fixed to annotate mortars to armature boring 6; Set up template in tunnel, bottom 8, with the top hanging scaffold to coal discharge outlet borehole wall fluid concrete, fixed separation bin is put coal pipe 5, set up the template that concrete separates warehouse 4 at the top hanging scaffold afterwards, extract concrete and separate around the warehouse 4 anchor pole 6 in the dark vertical wall to concrete separation bin phantom plate, and it is fixed to annotate mortar to armature boring 6, uses the top hanging scaffold to borehole wall fluid concrete then; After having built concrete separation warehouse 4, with hanging scaffold separation bin lid 3 being placed on concrete separates on the warehouse 4, pull out around the separation bin lid 3 anchor pole 6 in the dark vertical wall to the separation bin lid, and it is fixed to annotate mortar to armature boring 6, from top to borehole wall fluid concrete, fixed good separation bin lid 3 makes separation bin lid 3, concrete separate warehouse 4 and put 5 firm the striking up partnership of coal pipe, forms separation bin.To excite boring that coal takes place in brattice way 7 and be connected with the jet pipe joint 1 at separation bin top with the outstanding jet pipe of gas, and the gas drainage under suction pipeline is connected with the releasing pipe joint 2 at separation bin top, the extraction effect makes separation bin be in negative pressure state.Boring generation coal and gas are outstanding when exciting, when beginning to spray coal and gas, spray in the separation bin through jet pipe joint 1 by the jet flow pipeline, because the separation bin diameter is greater than 2 meters, when exciting the outstanding beginning of boring coal and gas jet flow, the interior sectional area of separation bin has reduced jet speed greatly greater than 100 times of sectional areas in the jet pipe.Because the extraction effect makes separation bin be in negative pressure state, weaken the jet flow impact simultaneously, and extracted methane gas out; Concrete separates the coal body that warehouse 4 stores ejection, realizes the separation of coal, methane gas; Under the action of gravity of coal, open separation bin automatically and put the counterweight system door of coal pipe 5, emit coal and transport to the conveyor belt in tunnel, bottom 8; When in the storehouse during coal emptying, under the counterweight effect of coal discharge outlet 5, close coal discharge outlet automatically, make to keep negative pressure state in the storehouse.
Claims (2)
1. coal and gas separation bin, it is characterized in that: it comprises and is located at that brattice way (7) is funnel-form with bottom between tunnel, bottom (8) and the concrete reinforced through anchor pole (6) separates warehouse (4), the bottom of concrete separation warehouse (4) is provided with through anchor pole (6), the fixed separation bin of concrete puts coal pipe (5), its top is provided with through anchor pole (6), the fixed separation bin lid (3) of concrete, and separation bin lid (3) top is respectively equipped with jet pipe joint (1) that links to each other with jet pipe and the releasing pipe joint (2) that links to each other with releasing pipe; The coal discharge outlet that separation bin is put coal pipe (5) is provided with the counterweight system door; Described concrete separates the interior diameter of warehouse (4) greater than 2 meters, and interior sectional area is greater than 100 times of sectional areas in the jet pipe.
2. the coal and the gas separation method of separation bin according to claim 1 is characterized in that:
A, at first excavate a dark vertical between brattice way (7) and tunnel, bottom (8), boring and insert anchor pole (6) around the dark vertical borehole wall wouldn't be reinforced;
B, in dark vertical bottom center separation bin is set and puts coal pipe (5), anchor pole (6) in the dark vertical around it is outwards extracted out, make anchor pole (6) outer end put the outer wall of coal pipe (5) near separation bin, annotate the fixed anchor pole of mortar (6) afterwards, after the good template of tunnel, bottom (8) frame, to coal discharge outlet borehole wall fluid concrete;
C, put at separation bin and to set up the bottom that joins with it on the coal pipe (5) and be funnelform concrete separation bin phantom plate, section construction, anchor pole (6) around the borehole wall is outwards extracted near concrete separation bin phantom plate, annotate the fixed anchor pole of mortar (6) afterwards, fluid concrete between the separation bin phantom plate and the dark vertical borehole wall, fixed formation concrete separates warehouse (4);
D, separation bin lid (3) is placed on concrete separates on the warehouse (4), anchor pole (6) around the borehole wall is outwards extracted near the separation bin lid, annotate the fixed anchor pole of mortar (6) afterwards, fluid concrete between the separation bin phantom plate and the dark vertical borehole wall makes separation bin lid (3), concrete separate warehouse (4) and put the firm formation separation bin that strikes up partnership of coal pipe (5);
E, the jet pipe that will excite boring coal and gas to give prominence to are connected on the jet pipe joint (1) of separation bin, and the gas drainage under suction pipeline are connected on the releasing pipe joint (2) of separation bin;
F, give prominence to gas, when beginning to spray coal and gas, go into separation bin, simultaneously the gas in the separation bin is carried out pump drainage, make separation bin be in negative pressure state by the jet pipe pass when exciting boring that coal takes place;
The Weight type door is opened in g, the coal free-falling that enters separation bin automatically under the effect of gravity, put coal pipe (5) through separation bin and outwards flow out, and will emit coal and transport by being located at belt conveyer in the tunnel, bottom (8);
When the coal emptying in the separation bin, the coal discharge outlet that separation bin is put coal pipe (5) is closed under the effect of counterweight automatically, makes to keep negative pressure state in the separation bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100357272A CN101696637B (en) | 2009-10-09 | 2009-10-09 | Coal and gas separation bin and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100357272A CN101696637B (en) | 2009-10-09 | 2009-10-09 | Coal and gas separation bin and method thereof |
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| Publication Number | Publication Date |
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| CN101696637A CN101696637A (en) | 2010-04-21 |
| CN101696637B true CN101696637B (en) | 2011-09-14 |
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| CN2009100357272A Expired - Fee Related CN101696637B (en) | 2009-10-09 | 2009-10-09 | Coal and gas separation bin and method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101975076A (en) * | 2010-09-21 | 2011-02-16 | 安徽理工大学 | Structure for preventing coal and gas outburst and method for preventing outburst |
| CN102121369B (en) * | 2010-12-15 | 2013-04-24 | 中国神华能源股份有限公司 | Method for separating gas |
| CN113294154B (en) * | 2021-04-13 | 2023-10-03 | 昆明理工大学 | Method for reserving roadway in dead zone at bottom of ore drawing |
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| US4320627A (en) * | 1979-10-20 | 1982-03-23 | Air Products And Chemicals, Inc. | Apparatus for recovering natural gas in a mine |
| CN1546843A (en) * | 2003-12-15 | 2004-11-17 | 苏国民 | Method for separating coal mine gas |
| CN2825947Y (en) * | 2004-11-30 | 2006-10-11 | 淮北矿业集团煤业有限责任公司芦岭煤矿 | Blowout preventer for drill of protrusive coal seam |
| UA78006C2 (en) * | 2004-08-03 | 2007-02-15 | Fedorov Res Inst Of Mine Mecha | Method for degassing gas-bearing coal beds |
| 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 |
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2009
- 2009-10-09 CN CN2009100357272A patent/CN101696637B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320627A (en) * | 1979-10-20 | 1982-03-23 | Air Products And Chemicals, Inc. | Apparatus for recovering natural gas in a mine |
| CN1546843A (en) * | 2003-12-15 | 2004-11-17 | 苏国民 | Method for separating coal mine gas |
| UA78006C2 (en) * | 2004-08-03 | 2007-02-15 | Fedorov Res Inst Of Mine Mecha | Method for degassing gas-bearing coal beds |
| CN2825947Y (en) * | 2004-11-30 | 2006-10-11 | 淮北矿业集团煤业有限责任公司芦岭煤矿 | Blowout preventer for drill of protrusive coal seam |
| 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 |
Non-Patent Citations (2)
| Title |
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| 俞启香，罗新荣.地面钻井的瓦斯检测与防喷技术.《矿业世界》.1994,(第1期),34-35. * |
| 李旭东.多功能井下钻井防喷装置的研制和应用.《中国煤炭地质》.2009,第21卷(第3期),66-67. * |
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| CN101696637A (en) | 2010-04-21 |
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