CN112169535A - Extraction device and extraction method for coal mine ventilation air methane - Google Patents
Extraction device and extraction method for coal mine ventilation air methane Download PDFInfo
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- CN112169535A CN112169535A CN202011069484.7A CN202011069484A CN112169535A CN 112169535 A CN112169535 A CN 112169535A CN 202011069484 A CN202011069484 A CN 202011069484A CN 112169535 A CN112169535 A CN 112169535A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000003245 coal Substances 0.000 title claims abstract description 24
- 238000009423 ventilation Methods 0.000 title claims description 41
- 238000000605 extraction Methods 0.000 title claims description 23
- 230000003647 oxidation Effects 0.000 claims abstract description 42
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 42
- 238000001035 drying Methods 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 6
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 6
- 239000002274 desiccant Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 238000001179 sorption measurement Methods 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 25
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 18
- 230000002265 prevention Effects 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 238000003795 desorption Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 8
- 239000011490 mineral wool Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 210000002268 wool Anatomy 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/343—Heat recovery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/40098—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating with other heating means
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a fire-proof plate shell, which belongs to the technical field of coal mining and comprises an outer fixed cylinder, wherein a drying plate is arranged in the inner cavity of the outer fixed cylinder, side wall threads are arranged on the side wall of the drying plate, a first thread groove matched with the side wall threads is arranged on the inner wall of the outer fixed cylinder, the upper end face and the lower end face of the drying plate are respectively provided with a consistent through hole in a penetrating manner, a silica gel drying agent is filled in the inner cavity of the drying plate, a methane treatment device is arranged at the top of the drying plate, a first guide pipe is arranged on the methane treatment device, a left switch valve is arranged on the first guide pipe, a left connecting flange is connected to one end of the first guide pipe, which is far away from the outer fixed cylinder, an oxidation device is connected to the right side of the left connecting flange, a second guide pipe is arranged on the right side of the oxidation, thereby realizing the efficient utilization of resources.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a device and a method for extracting coal mine ventilation air methane.
Background
The ventilation air is also called coal mine air exhaust gas, namely coal mine gas with the methane concentration lower than seventy percent. According to statistics of relevant departments, methane exhausted into the atmosphere by ventilation air methane is equivalent to the gas transmission of western gas in east one year in China, and the greenhouse gas effect is about two hundred million tons of carbon dioxide equivalent.
In the coal mining process, a large amount of gas generated in a coal seam rushes to a mining space, mine ventilation for removing the mine gas is one of basic means for gas control, in order to improve the safety of coal mine production, a large amount of gas is discharged to the atmosphere along with a mine wind wellhead ventilator, and the direct discharge of ventilation air methane causes huge waste of non-renewable resources on one hand and aggravates atmospheric pollution and greenhouse effect on the other hand, so that the extraction device and the extraction method for coal mine ventilation air methane have practical value.
Disclosure of Invention
The invention aims to provide an extraction device and an extraction method for coal mine ventilation air methane, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a coal mine ventilation air methane's extraction element, includes outer fixed cylinder, outer fixed cylinder inner chamber is provided with dry plate, dry plate lateral wall is provided with the lateral wall screw thread, outer fixed cylinder inner wall is provided with the thread groove one that matches with the lateral wall screw thread, the terminal surface all runs through and is provided with unanimous clearing hole about the dry plate, dry plate inner chamber is filled and is provided with the silica gel drier, the dry plate top is provided with methane treatment device, be provided with guiding tube one on the methane treatment device, be provided with left switch valve on the guiding tube one, guiding tube one is kept away from outer fixed cylinder one end and is connected with left flange, left flange right side is connected with the oxidation device, the oxidation device right side is provided with guiding tube two, be provided with right switch valve on the guiding.
Preferably, methane treatment device includes the urceolus, the urceolus outer wall is provided with protruding screw thread, the urceolus inner chamber is provided with the carborundum hot plate, carborundum hot plate inner chamber is provided with adsorbs the desorption component, urceolus shell inner chamber is provided with cotton layer of pearl, rock wool heat preservation, the cotton layer of heat preservation by interior outside to respectively.
Preferably, adsorb desorption component and include the punch holder, the punch holder below is provided with the lower plate, the equal activity of punch holder and lower plate inner chamber is pegged graft and is provided with the adsorption plate, and is two sets of the adsorption plate all runs through and is provided with the guide hole, and is two sets of the adsorption plate inner chamber all is provided with the active carbon adsorption layer, be provided with the linkage plate between punch holder and the lower plate, punch holder and lower plate bottom all run through and are provided with the screw, just the equal activity of screw inner chamber on punch holder and the lower plate is pegged graft and is provided with the linkage plate, the punch holder top is provided with the top handle, top handle periphery gluing is provided with the anti-skidding rubber ring layer.
Preferably, the oxidation device comprises an oxidation cylinder, a cylindrical electric heating plate is arranged on the periphery of the oxidation cylinder, an outer cover cylinder shell is sleeved on the periphery of the cylindrical electric heating plate, a first heat preservation layer and a second heat preservation layer are respectively arranged in an inner cavity of the outer cover cylinder shell from inside to outside, a heat conduction pipe is connected to the top of the oxidation cylinder, the top end of the heat conduction pipe respectively penetrates through the cylindrical electric heating plate, the outer cover cylinder shell, the first heat preservation layer and the second heat preservation layer, side connecting pipes are respectively connected to the left side and the right side of the oxidation cylinder, outer fixing flanges are respectively arranged on the back sides of the two groups of side connecting pipes, a group of side mounting flanges are respectively arranged on the back sides of the two groups of outer fixing flanges, the outer fixing flanges are movably connected with the side mounting flanges through connecting bolts, fireproof shells are respectively connected to the, the utility model discloses a fire prevention shell, including fire prevention shell, base ring, fixing screw, damping spring, fixing nut, heat pipe, fire prevention shell inner chamber is provided with the base ring, the base ring is kept away from side connecting pipe one end and is provided with multiunit fixing screw, the base ring is kept away from side connecting pipe one side and is provided with two sets of fire prevention dishes, just fixing screw all runs through two sets of fire prevention dishes, the fixing screw periphery all cup joints and is provided with damping spring, just damping spring sets up between two sets of fire prevention dishes, fixing screw runs through behind two sets of fire prevention dishes.
Preferably, it is two sets of run through the grafting on the fire prevention dish is kept away from side connecting pipe one end and is provided with multiunit flange bolt, the flange bolt periphery is cup jointed and is provided with flange nut, and keeps away from two sets of side connecting pipe side mounting flange all through flange bolt and flange nut respectively with left flange and right flange swing joint.
Preferably, the outer wall of the upper clamping plate is provided with an external thread, the inner wall of the silicon carbide heating plate is provided with an internal groove matched with the internal thread, and the upper clamping plate is movably connected with the silicon carbide heating plate through the external thread.
An extraction method of an extraction device of coal mine ventilation air methane comprises the following steps:
s1: the ventilation air methane firstly enters the inner cavity of the drying plate through the through holes, and then is dried by the silica gel drying agent in the inner cavity of the drying plate;
s2: the dried ventilation air methane enters the inner cavities of the two groups of adsorption plates through the guide holes, the ventilation air methane is adsorbed through the two groups of activated carbon adsorption layers, when the ventilation air methane adsorbed on the activated carbon adsorption layers needs to be desorbed, the silicon carbide heating plate is heated, and the ventilation air methane adsorbed on the activated carbon adsorption layers is desorbed through high temperature;
s3: methane after desorption will produce heat through the heating oxidation effect, opens left ooff valve, closes right ooff valve, and the heat is leading-in to produce a large amount of heats through the oxidation of tube-shape electric heating board heating after the oxidation section of thick bamboo inner chamber, and the heat of production is transmitted by the heat pipe again for a large amount of heat energy that produce behind the methane oxidation of ventilation air methane can reuse, changing waste into valuables.
Compared with the prior art, the invention has the beneficial effects that:
1. the heat insulation treatment of the heat generated by the silicon carbide heating plate is realized through the pearl wool layer, the rock wool heat insulation layer and the heat insulation cotton layer arranged in the inner cavity of the outer barrel, so that the phenomenon that the temperature in the inner cavity of the silicon carbide heating plate is dissipated too fast is prevented, and the heating effect of the silicon carbide heating plate is influenced;
2. when the change is dismantled to the adsorption plate to needs, drive the punch holder through the top handle earlier and rotate, because through threaded connection between punch holder and the carborundum hot plate, so the punch holder is convenient for take out from carborundum hot plate inner chamber, pulling the top handle and driving the bottom structure upward movement upwards lifting to the realization will adsorb the desorption component and take out from carborundum hot plate inner chamber, the rethread unscrews the centre gripping bolt, again with two sets of adsorption plates respectively from between the punch holder and between the lower plate take off can.
3. The explosion impact of methane generated in the oxidation process in the oxidation cylinder realizes explosion-proof treatment through the fireproof disc, thereby ensuring the safe oxidation of methane in ventilation air.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the methane processing apparatus according to the present invention;
FIG. 3 is a schematic view of the structure of the adsorption/desorption member of the present invention;
FIG. 4 is a schematic structural diagram of an oxidation apparatus according to the present invention.
In the figure: 1. an outer fixed cylinder; 2. drying the plate; 3. sidewall threads; 4. a methane treatment unit; 41. an outer cylinder; 42. raised threads; 43. a heat insulation cotton layer; 44. a rock wool heat-insulating layer; 45. a pearl cotton layer; 46. a silicon carbide heating plate; 5. an adsorption/desorption member; 51. an upper splint; 52. a lower splint; 53. a connector tile; 54. a top handle; 55. clamping the bolt; 56. an adsorption plate; 57. a guide hole; 58. an activated carbon adsorption layer; 6. an oxidation unit; 61. an oxidation cylinder; 62. a cylindrical electric heating plate; 63. an outer cylindrical shell; 64. a first heat insulation layer; 65. a second heat-insulating layer; 66. a side connection pipe; 67. an outer fixed flange; 68. a fire resistant housing; 69. a base ring; 610. fixing the stud; 611. fixing a nut; 612. a movable ring; 613. a damping spring; 614. a fire-proof tray; 615. a side mounting flange; 616. a flange bolt; 617. a flange nut; 618. a heat conducting pipe; 7. a silica gel desiccant; 8. through the hole; 9. a first guide pipe; 10. a left on-off valve; 11. a left attachment flange; 12. a second guide tube; 13. a right connecting flange; 14. and a right switch valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution of a coal mine ventilation methane extraction device: the utility model provides a coal mine ventilation air methane's extraction element, including outer fixed cylinder 1, 1 inner chamber of outer fixed cylinder is provided with drying plate 2, 2 lateral walls of drying plate are provided with lateral wall screw thread 3, 1 inner wall of outer fixed cylinder is provided with the thread groove I that matches with lateral wall screw thread 3, terminal surface all runs through about drying plate 2 and is provided with unanimous clearing hole 8, 2 inner chambers of drying plate are filled and are provided with silica gel drier 7, 2 tops of drying plate are provided with methane treatment device 4, be provided with guiding tube one 9 on the methane treatment device 4, be provided with left ooff valve 10 on the guiding tube one 9, 1 one end of outer fixed cylinder is kept away from to guiding tube one 9 is connected with left flange 11, left flange 11 right side is connected with oxidation unit 6, 6 right sides of oxidation unit are provided with guiding tube two 12.
Referring to fig. 2, the methane treatment device 4 includes an outer cylinder 41, the outer wall of the outer cylinder 41 is provided with a raised thread 42, the inner cavity of the outer cylinder 41 is provided with a silicon carbide heating plate 46, the inner cavity of the silicon carbide heating plate 46 is provided with an adsorption and desorption member 5, the inner cavity of the shell of the outer cylinder 41 is respectively provided with a pearl wool layer 45, a rock wool heat insulation layer 44 and a heat insulation cotton layer 43 from inside to outside, the heat insulation treatment of the heat generated by the silicon carbide heating plate 46 is realized through the pearl wool layer 45, the rock wool heat insulation layer 44 and the heat insulation cotton layer 43 arranged in the inner cavity of the outer cylinder 41, and the temperature loss of the inner cavity of the silicon.
Referring to fig. 3, the adsorption and desorption member 5 includes an upper plate 51, a lower plate 52 is disposed below the upper plate 51, adsorption plates 56 are movably inserted into inner cavities of the upper plate 51 and the lower plate 52, guide holes 57 are formed through the two groups of adsorption plates 56, activated carbon adsorption layers 58 are disposed in inner cavities of the two groups of adsorption plates 56, a connecting plate 53 is disposed between the upper plate 51 and the lower plate 52, screw holes are formed through bottoms of the upper plate 51 and the lower plate 52, connecting plates 53 are movably inserted into inner cavities of the screw holes of the upper plate 51 and the lower plate 52, a top handle 54 is disposed on a top of the upper plate 51, an anti-slip rubber ring layer is adhered to an outer periphery of the top handle 54, when the adsorption plates 56 need to be disassembled and replaced, the upper plate 51 is driven to rotate by the top handle 54, and the upper plate 51 is connected to the silicon carbide heating plate 46 by a screw thread, so that the upper plate 51 can be conveniently, the top handle 54 is lifted upwards to drive the bottom structure to move upwards, so that the adsorption and desorption component 5 is taken out from the inner cavity of the silicon carbide heating plate 46, the clamping bolt 55 is loosened, and then the two groups of adsorption plates 56 are respectively taken down from the space between the upper clamping plates 51 and the space between the lower clamping plates 52.
Referring to fig. 4, the oxidation apparatus 6 includes an oxidation cylinder 61, a cylindrical electrical heating plate 62 is disposed on the periphery of the oxidation cylinder 61, an outer cover cylinder 63 is sleeved on the periphery of the cylindrical electrical heating plate 62, a first insulating layer 64 and a second insulating layer 65 are respectively disposed in an inner cavity of the outer cover cylinder 63 from inside to outside, a heat conducting pipe 618 is connected to the top of the oxidation cylinder 61, the top end of the heat conducting pipe 618 penetrates through the cylindrical electrical heating plate 62, the outer cover cylinder 63, the first insulating layer 64 and the second insulating layer 65, side connecting pipes 66 are connected to the left and right sides of the oxidation cylinder 61, outer fixing flanges 67 are disposed on opposite sides of the two sets of side connecting pipes 66, a set of side mounting flanges 615 are disposed on opposite sides of the two sets of outer fixing flanges 67, the outer fixing flanges 67 are movably connected to the side mounting flanges 615 through connecting bolts, fire-proof housings 68 are connected to, the inner chamber of fireproof shell 68 is provided with base ring 69, base ring 69 is kept away from side connecting pipe 66 one end and is provided with multiunit fixing stud 610, base ring 69 is kept away from side connecting pipe 66 one side and is provided with two sets of fire prevention dish 614, and fixing stud 610 all runs through two sets of fire prevention dish 614, fixing stud 610 periphery all cup joints and is provided with damping spring 613, and damping spring 613 sets up between two sets of fire prevention dish 614, fixing stud 610 runs through behind two sets of fire prevention dish 614 with fixation nut 611 swing joint, be provided with the ooff valve on the heat pipe 618, methane is in the explosion impact that the inside oxidation process of oxidation cylinder 61 produced, realize explosion-proof processing through fire prevention dish 614, thereby guarantee ventilation air methane safe oxidation.
Referring to fig. 1 and 4, a plurality of sets of flange bolts 616 are inserted into the mounting flange 615 connected to one end of each of the two sets of fire-proof plates 614 far away from the side connecting pipe 66, flange nuts 617 are sleeved on the peripheries of the flange bolts 616, and the two sets of side mounting flanges 615 far away from the side connecting pipe 66 are movably connected to the left connecting flange 11 and the right connecting flange 13 through the flange bolts 616 and the flange nuts 617, respectively.
Referring to fig. 2 and 3, an outer wall of the upper clamp plate 51 is provided with an external thread, an inner wall of the silicon carbide heating plate 46 is provided with an internal groove matched with the internal thread, and the upper clamp plate 51 is movably connected with the silicon carbide heating plate 46 through the external thread.
An extraction method of an extraction device of coal mine ventilation air methane comprises the following steps,
s1: the ventilation air methane firstly enters the inner cavity of the drying plate 2 through the through hole 8, and then is dried by the silica gel drying agent 7 in the inner cavity of the drying plate 2;
s2: the dried ventilation air methane enters the inner cavities of the two groups of adsorption plates 56 through the guide hole 57, the ventilation air methane is adsorbed through the two groups of activated carbon adsorption layers 58, when the ventilation air methane adsorbed on the activated carbon adsorption layers 58 needs to be desorbed, the silicon carbide heating plate 46 is heated, and the ventilation air methane adsorbed on the activated carbon adsorption layers 58 is desorbed through high temperature;
s3: the desorbed methane generates heat through the heating oxidation effect, the left switch valve 10 is opened, the right switch valve 14 is closed, the heat is guided into the inner cavity of the oxidation cylinder 61 and then is heated and oxidized through the cylindrical electric heating plate 62 to generate a large amount of heat, and the generated heat is transmitted through the heat conduction pipe 618, so that a large amount of heat energy generated after the methane oxidation effect of the ventilation air methane can be reused, and waste is changed into valuable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a coal mine ventilation air methane's extraction element, includes outer fixed cylinder (1), its characterized in that: the inner cavity of the outer fixed cylinder (1) is provided with a drying plate (2), the side wall of the drying plate (2) is provided with a side wall thread (3), the inner wall of the outer fixed cylinder (1) is provided with a thread groove I matched with the side wall thread (3), the upper end face and the lower end face of the drying plate (2) are provided with consistent through holes (8) in a penetrating manner, the inner cavity of the drying plate (2) is filled with a silica gel drying agent (7), the top of the drying plate (2) is provided with a methane treatment device (4), the methane treatment device (4) is provided with a first guide pipe (9), the first guide pipe (9) is provided with a left switch valve (10), one end, far away from the outer fixed cylinder (1), of the first guide pipe (9) is connected with a left connecting flange (11), the right side of the left connecting flange (11) is connected with an oxidation device (6, and a right switch valve (14) is arranged on the second guide pipe (12).
2. The coal mine ventilation air methane extraction device of claim 1, wherein: methane treatment device (4) are including urceolus (41), urceolus (41) outer wall is provided with protruding screw thread (42), urceolus (41) inner chamber is provided with carborundum hot plate (46), carborundum hot plate (46) inner chamber is provided with adsorbs desorption component (5), urceolus (41) shell inner chamber is provided with cotton layer of pearl (45), rock wool heat preservation (44), heat preservation cotton layer (43) by interior outside to respectively.
3. The coal mine ventilation air methane extraction device of claim 2, wherein: adsorb desorption component (5) and include punch holder (51), punch holder (51) below is provided with lower plate (52), punch holder (51) and lower plate (52) inner chamber are all moved to peg graft and are provided with adsorption plate (56), and are two sets of adsorption plate (56) all run through and are provided with guide hole (57), and are two sets of adsorption plate (56) inner chamber all is provided with activated carbon adsorption layer (58), be provided with between punch holder (51) and lower plate (52) linkage plate (53), punch holder (51) and lower plate (52) bottom all run through and are provided with the screw, just the equal activity of screw inner chamber on punch holder (51) and lower plate (52) is pegged graft and is provided with linkage plate (53), punch holder (51) top is provided with top handle (54), top handle (54) periphery gluing is provided with anti-skidding rubber ring layer.
4. The coal mine ventilation air methane extraction device of claim 1, wherein: the oxidation device (6) comprises an oxidation cylinder (61), wherein a cylindrical electric heating plate (62) is arranged on the periphery of the oxidation cylinder (61), an outer cover cylinder shell (63) is sleeved on the periphery of the cylindrical electric heating plate (62), a first heat preservation layer (64) and a second heat preservation layer (65) are respectively arranged in the inner cavity of the outer cover cylinder shell (63) from inside to outside, a heat conduction pipe (618) is connected to the top of the oxidation cylinder (61), the top end of the heat conduction pipe (618) penetrates through the cylindrical electric heating plate (62), the outer cover cylinder shell (63), the first heat preservation layer (64) and the second heat preservation layer (65) respectively, side connecting pipes (66) are respectively connected to the left side and the right side of the oxidation cylinder (61), outer fixing flanges (67) are respectively arranged on the opposite sides of the side connecting pipes (66), a set of side connecting pipes (67) are respectively arranged on the opposite sides of the outer fixing flanges (67), a set of side, the opposite backs of the two groups of side mounting flanges (615) are both connected with fireproof shells (68), the opposite backs of the two groups of fireproof shells (68) are both connected with the other group of side mounting flanges (615), a base ring (69) is arranged in the inner cavity of the fireproof shell (68), a plurality of groups of fixing studs (610) are arranged at one end of the base ring (69) far away from the side connecting pipe (66), two groups of fireproof discs (614) are arranged on one side of the base ring (69) far away from the side connecting pipe (66), the fixing studs (610) penetrate through two groups of fireproof discs (614), damping springs (613) are sleeved on the peripheries of the fixing studs (610), and damping spring (613) sets up between two sets of fire prevention dish (614), fixed double-screw bolt (610) run through behind two sets of fire prevention dish (614) with fixation nut (611) swing joint, be provided with the ooff valve on heat pipe (618).
5. The extraction device of coal mine ventilation air methane according to claim 4, characterized in that: two sets of run through on the fire prevention dish (614) keep away from side mounting flange (615) that side connecting pipe (66) one end links to each other and peg graft and be provided with multiunit flange bolt (616), flange bolt (616) periphery is cup jointed and is provided with flange nut (617), and keeps away from two sets of side connecting pipe (66) side mounting flange (615) all through flange bolt (616) and flange nut (617) respectively with left flange (11) and right flange (13) swing joint.
6. The coal mine ventilation air methane extraction device of claim 3, wherein: the outer wall of the upper clamping plate (51) is provided with an external thread, the inner wall of the silicon carbide heating plate (46) is provided with an internal thread groove matched with the internal thread, and the upper clamping plate (51) is movably connected with the silicon carbide heating plate (46) through the external thread.
7. The extraction method of the extraction device of the coal mine ventilation air methane according to any one of the claims 1 to 6, characterized by comprising the following steps: the method comprises the following steps:
s1: the ventilation air methane firstly enters the inner cavity of the drying plate (2) through the through hole (8), and then is dried by the silica gel desiccant (7) in the inner cavity of the drying plate (2);
s2: the dried ventilation air methane enters the inner cavities of the two groups of adsorption plates (56) through the guide hole (57), the ventilation air methane is adsorbed through the two groups of activated carbon adsorption layers (58), when the ventilation air methane adsorbed on the activated carbon adsorption layers (58) needs to be desorbed, the silicon carbide heating plate (46) is heated, and the ventilation air methane adsorbed on the activated carbon adsorption layers (58) is desorbed through high temperature;
s3: the methane after desorption will generate heat through the heating oxidation effect, open left ooff valve (10), close right ooff valve (14), heat is leading-in to oxidation cylinder (61) inner chamber after through tube-shape electric heating board (62) heating oxidation, produce a large amount of heat, the heat of production is transmitted by heat pipe (618) again for a large amount of heat energy that produce behind the methane oxidation effect of ventilation air methane can reuse, changing waste into valuables.
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Application publication date: 20210105 |