CN102205207B - Coal mine methane preheating catalytic oxidation device with multiple reaction chambers - Google Patents
Coal mine methane preheating catalytic oxidation device with multiple reaction chambers Download PDFInfo
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- CN102205207B CN102205207B CN 201110089163 CN201110089163A CN102205207B CN 102205207 B CN102205207 B CN 102205207B CN 201110089163 CN201110089163 CN 201110089163 CN 201110089163 A CN201110089163 A CN 201110089163A CN 102205207 B CN102205207 B CN 102205207B
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Abstract
The invention relates to a coal mine methane preheating catalytic oxidation device with multiple reaction chambers and belongs to technical field of ultralow-concentration methane oxidation. The device comprises a coal mine methane supply system, a pre-heater, even reaction chambers, a suction system, an exhaust system, an exhaust heating system and a measuring and controlling system, wherein an electric heater, a temperature-equalizing and flow-equalizing bed and a catalytic oxidation bed are arranged in each reaction chamber. After starting to heat, the coal mine methane is heated after entering into the pre-heater through the coal mine methane supply system; and then the coal mine methane is supplied to each reaction chamber through the suction system; carbon dioxide and water are oxidized in the catalytic oxidation bed of the reaction chamber; after the reacted heat gas is converged by the exhaust system, one part of the heat gas is used for utilizing the heat; and the residual heat gas enters into the pre-heater and transfers the heat to the fresh coal mine methane, and the residual heat gas is lastly discharged into the atmosphere after being cooled. The coal mine methane preheating catalytic oxidation device with multiple reaction chambers has the advantages of compact structure, low power consumption, simpleness in running, high reliability, and the like.
Description
Technical field
The present invention relates to a kind of multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, belong to super low concentration methane oxidation technical field.
Background technology
The main component of coal mine gas is methane, is a kind of greenhouse gases, and its greenhouse effects are 21 times of carbon dioxide.In recent years, China to discharge methane by coal mine methane every year be more than 150 hundred million Nm
3If this ventilation air gas is used, approximately amount to 2,300 ten thousand tons of standard coals, can reduce discharging 200,000,000 tons of equivalent carbon dioxide.Coal mine wind-lack gas concentration is very low, be difficult to utilize conventional burners directly to be burnt, effectively utilizing at present method is to adopt hot counter flow oxidation technology (Thermal Flow Reversal Reactor, be called for short TFRR) and catalysis counter flow oxidation technology (Catalytic Flow Reversal is called for short CFRR).The basic functional principle of these two kinds of counter flow oxidation technology is substantially identical with structure, and the main distinction is that CFRR has used oxidation catalyst, has reduced the needed temperature of gas oxidation.Methane in the MEGTEC employing TFRR of the company technical finesse coal mine methane of Sweden, and reclaim its energy.MEGTEC company in 2004 Australia than and installed 4 and overlapped TFRR than opening up the West Cliff of company colliery, bring into operation at the beginning of 2007, about 20% coal mine methane in West Cliff colliery can be converted into the useful energy, generating capacity is 5MW; 1 cover TFRR was installed in colliery, one of Dengfeng City, China Henan in 2007, has been specifically designed to the destruction ventilation air methane.The units such as the Shandong Technology Univ of China, Shengli Oil Field Shengli Power Machinery Group Co., Ltd, Zibo black bavin new forms of energy Co., Ltd also successively independent development the hot counter flow oxidation device of coal mine wind-lack gas, and carried out application test research at colliery scene, begun now demonstrating running.Nineteen ninety-five Canadian Minerals and energy technology center (CANMET) begin to research and develop coal mine wind-lack gas catalysis countercurrent reaction (CFRR) technology, developed now laboratory scale catalytic methane countercurrent reaction chamber, and carried out coal mine wind-lack gas catalytic oxidation simulated test on this device.On the whole, the gas in coal mine methane can be administered and utilize in hot countercurrent reaction chamber and catalysis countercurrent reaction chamber effectively.But from the practical application angle, only have at present hot countercurrent reaction technology successfully to carry out the business application at colliery scene.But adopt TFRR technical finesse coal mine wind-lack gas also to exist following problem: (1) TFRR takes up an area relatively large, for example will process 150m with the TFRR unit of MEGTEC company
3The gas of/s, its plant area area is about (63 * 14.62 * 4.49) m; (2) oxidation bed of TFRR is made of a large amount of ceramic honey combs, and ceramic honey comb is the problems such as meeting cracking, fragmentation and obstruction after long-term the use, in general will change one time ceramic honey comb every year, and maintenance cost is too high; (3) drag losses of TFRR is very large, and generally more than 8000KPa, the energy consumption of blower fan is very high; (4) air-flow in the oxidation bed of TFRR need to constantly be changed direction, and maintains the middle part of oxidation bed to guarantee high-temperature area, and control degree is automatically had relatively high expectations, and operating technology requires very high.These subject matters have strengthened the difficulty that the TFRR Technique Popularizing is used.
Summary of the invention
Purpose of the present invention is exactly that defective, a kind of volume of innovation development that will overcome above-mentioned technology existence are little, the wind-insufficient preheating catalysis oxidizer of coal mine with multi-reaction chamber of compact conformation.Its technical scheme is:
A kind of multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine comprises weary wind supply air system, preheater, even number reative cell, air inlet system and exhaust system, the heat-obtaining system of bleeding, measurement and control system, it is characterized in that:
Weary wind supply air system comprises blower fan, the first weary wind transfer pipeline and the second weary wind transfer pipeline, and an end of the first weary wind transfer pipeline is communicated with the mine air-lack outlet, and the other end is communicated with the second weary wind transfer pipeline through blower fan;
preheater comprises the preheater core, the weary wind entrance of preheater, the weary wind outlet of preheater, the preheater exhaust gas entrance, the preheater waste gas outlet, preheater shell and the 4th thermal insulation separation thermosphere, wherein the preheater core adopts gas-gas dividing wall type heat exchanger, the weary wind passage two ends of preheater core inner are communicated with the weary wind entrance of preheater and the weary wind outlet of preheater respectively, the exhaust steam passage two ends of preheater core inner are communicated with preheater exhaust gas entrance and preheater waste gas outlet respectively, the weary wind entrance of preheater passes the 4th thermal insulation separation thermosphere, reach that preheater shell is outside to be communicated with the second weary wind transfer pipeline, the 4th thermal insulation separation thermosphere is passed in the weary wind outlet of preheater, reach the preheater shell outside, the inlet end that is communicated with air inlet system and exhaust system, the preheater waste gas outlet is communicated with ambient atmosphere through waste gas outlet pipe,
the even number reative cell is arranged side by side, arranging successively the electrical heating starting drive along gas flow direction in each reative cell, samming current-sharing bed and catalytic oxidation bed, wherein samming current-sharing bed is piled up by the honeycomb ceramic heat accumulator of macroporosity and is consisted of, some circles are arranged on honeycomb ceramic heat accumulator, square or polygonal hole, filling catalyst in the catalytic oxidation bed, catalyst is that cordierite honeycomb ceramic take small porosity is as carrier, alundum (Al2O3) is Second support, Pt, Pd is main active, be prepared from the equally distributed method of high dispersive rate, and samming current-sharing bed and catalytic oxidation bed both sides are equipped with fixed network, gas flow direction in two adjacent reative cells is opposite,
air inlet system and exhaust system comprise the hot blast tube connector, air inlet pipe, a plurality of air intake branches, a plurality of air inlet flared tubes, a plurality of air inlet cloth bellows, a plurality of exhaust gas centralized gas tanks, a plurality of collapsible tubes, a plurality of waste gas arms, flue gas leading and waste gas flared tube, the outside that wherein is positioned at two reative cells of outermost end is communicated with air inlet cloth bellows, exhaust gas centralized gas tank and air inlet cloth bellows are disposed between two adjacent reative cells successively, and be communicated with reative cell respectively, be that each reative cell all is communicated with air inlet cloth bellows and an exhaust gas centralized gas tank, each air inlet cloth bellows is all successively through an air inlet flared tube, air intake branch is communicated with air inlet pipe, each exhaust gas centralized gas tank is all successively through a collapsible tube, a waste gas arm is communicated with flue gas leading, air inlet pipe connects the weary wind outlet of preheater through the hot blast tube connector, flue gas leading connects the preheater exhaust gas entrance through the waste gas flared tube,
The heat-obtaining system of bleeding comprises the exhaust tube that is provided with control valve, and wherein the inlet end of exhaust tube is communicated with flue gas leading;
Measurement and control system comprises: measurement and control unit; Be arranged on the first pressure sensor, concentration sensor and flowmeter on the second weary wind transfer pipeline, be respectively used to measure pressure, concentration and the flow of weary wind in the second weary wind transfer pipeline; Be arranged on the second pressure sensor and the first temperature sensor on the hot blast tube connector, be used for measuring the pressure and temperature of weary wind in the hot blast tube connector; The second temperature sensor that is arranged on catalytic oxidation bed inside is used for measuring the temperature of catalytic oxidation bed; Be arranged on the three-temperature sensor on waste gas outlet pipe, be used for measuring the temperature of waste gas outlet; Be arranged on the 4th temperature sensor on exhaust tube, be used for measuring the temperature of the hot blast of bleeding; The output of the first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor, the first pressure sensor, the second pressure sensor, concentration sensor and flowmeter is connected with measurement and control unit by holding wire, and the control end of control valve is connected with measurement and control unit by holding wire.
Described multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, reative cell is surrounded by inner housing, and the outside of inner housing is surrounded by the 3rd thermal insulation separation thermosphere, is provided with shell body outside the 3rd thermal insulation separation thermosphere.
Described multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, fixed network are used for the honeycomb ceramic heat accumulator of the fixedly interior filling of samming current-sharing bed and the catalyst carrier of the interior filling of catalytic oxidation bed, and the surrounding of fixed network is fixedly connected with the inwall of inner housing.
Described multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, electrical heating starting drive comprise a plurality of electrical heating wire and stay pipes parallel to each other of being wound with, and the two ends of each stay pipe are passed inner housing, are inserted on the 3rd thermal insulation separation thermosphere.
Described multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, the junction of inner housing and air inlet cloth bellows, exhaust gas centralized gas tank is equipped with sealing gasket.
Described multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, the outside of hot blast tube connector, air inlet pipe, air inlet flared tube, collapsible tube, flue gas leading and exhaust tube is equipped with the first thermal insulation separation thermosphere, and the outside of air inlet cloth bellows, exhaust gas centralized gas tank is equipped with the second thermal insulation separation thermosphere.
its operation principle is: when working after the device heating starting, from the weary wind of the mine air-lack outlet first weary wind transfer pipeline of flowing through successively, blower fan, the second weary wind transfer pipeline and the weary wind entrance of preheater enter preheater, be heated to heat up at preheater and reach methane and can get temperature by catalytic oxidation, again through the weary wind outlet of preheater, the hot blast tube connector enters air inlet pipe, pass through successively again the air inlet flared tube after a plurality of air intake branch shuntings through air inlet pipe, air inlet cloth bellows enter the reative cell of each reative cell, be oxidized to carbon dioxide and water in the catalytic oxidation bed of reative cell, reacted hot gas is through the exhaust gas centralized gas tank, collapsible tube confluxes in flue gas leading, a part is carried out heat utilization through exhaust tube is removed, remaining gas is through the waste gas flared tube, the preheater exhaust gas entrance enters preheater, transfer heat to fresh weary wind, pass through the preheater waste gas outlet after cooling, waste gas outlet pipe enters among atmosphere.
The present invention compared with prior art, its advantage and beneficial effect are:
1, a plurality of reative cells are combined in employing, and adopt a preheater to concentrate preheating, can greatly reduce volume and the floor space of whole device; This kind structure easily realizes modularized design and manufacturing simultaneously.
2, the flow resistance of preheater is less, thereby the flow resistance of whole device is less, can effectively reduce the power of blower fan, improves the performance driving economy of device.
3, only have filled honeycomb pottery in samming current-sharing bed and catalytic oxidation bed, the ceramic honey comb consumption greatly reduces, and then has reduced the maintenance cost that brings because changing ceramic honey comb.
Description of drawings
Fig. 1 is the section of structure of the embodiment of the present invention 1.
Fig. 2 is A-A profile embodiment illustrated in fig. 1.
Fig. 3 is B-B profile embodiment illustrated in fig. 1.
Fig. 4 is the C-C profile of Fig. 2.
Fig. 5 is the partial structurtes profile of the embodiment of the present invention 2.
Fig. 6 is D-D profile embodiment illustrated in fig. 5.
in figure: 1. blower fan, 2. the first weary wind transfer pipeline, 3. flowmeter, 4. concentration sensor, 5. the first pressure sensor, 6. waste gas outlet pipe, 7. the second weary wind transfer pipeline, 8. preheater, 9. hot blast tube connector, 10. the second pressure sensor, 11. the first temperature sensor, 12. waste gas flared tube, 13. control valve, 14. exhaust tube, 15. the 4th temperature sensor, 16. reative cell, 17. samming current-sharing bed, 18. catalytic oxidation bed, 19. fixed network, 20. air inlet flared tube, 21. the second temperature sensor, 22. air intake branch, 23. the first thermal insulation separation thermosphere, 24. the second thermal insulation separation thermosphere 25. air inlet cloth bellows, 26. air inlet pipe, 27. sealing gasket, 28. exhaust gas centralized gas tank, 29. shell body, 30. inner housing 31. the 3rd thermal insulation separation thermosphere, 32. electrical heating wire, 33. stay pipe, 34. collapsible tube, 35. waste gas arm, 36. flue gas leading, 37. measurement and control unit, 38. preheater waste gas outlet, 39. preheater core, 40. the 4th thermal insulation separation thermosphere, 41. preheater shell, 42. preheater exhaust gas entrance, 43. the weary wind outlet of preheater, 44. the weary wind entrance of preheater, 45. three-temperature sensor
The specific embodiment
Below in conjunction with embodiment, embodiment of the present invention are further illustrated.
Embodiment 1
In the embodiment 1 shown in Fig. 1-4: the coal mine wind-lack gas preheating catalysis oxidizer of coal mine with four reative cells 16 includes weary wind supply air system, preheater 8, reative cell 16, air inlet system and exhaust system, the heat-obtaining system of bleeding, measurement and control system.Wherein:
Weary wind supply air system comprises that an end of blower fan 1, the first weary wind transfer pipeline 2 and the second weary wind transfer pipeline 2 of weary wind transfer pipeline 7, the first is communicated with the mine air-lack outlet, and the other end is communicated with the second weary wind transfer pipeline 7 through blower fan 1;
preheater 8 comprises preheater core 39, the weary wind entrance 44 of preheater, the weary wind outlet 43 of preheater, preheater exhaust gas entrance 42, preheater waste gas outlet 38, preheater shell 41 and the 4th thermal insulation separation thermosphere 40, wherein preheater core 39 adopts gas-gas dividing wall type heat exchanger, the weary wind passage two ends of preheater core 39 inside are communicated with the weary wind entrance 44 of preheater and the weary wind outlet 43 of preheater respectively, the exhaust steam passage two ends of preheater core 39 inside are communicated with preheater exhaust gas entrance 42 and preheater waste gas outlet 38 respectively, the weary wind entrance 44 of preheater passes the 4th thermal insulation separation thermosphere 40, reach that preheater shell 41 is outside to be communicated with the second weary wind transfer pipeline 7, the 4th thermal insulation separation thermosphere 40 is passed in the weary wind outlet 43 of preheater, reach preheater shell 41 outsides, the inlet end that is communicated with air inlet system and exhaust system, preheater waste gas outlet 38 is communicated with ambient atmosphere through waste gas outlet pipe 6,
Four reative cells 16 are arranged side by side, and each reative cell 16 surrounds by inner housing 30, and the outside of inner housing 30 is surrounded by the 3rd thermal insulation separation thermosphere 31, and the 3rd thermal insulation separation thermosphere 31 outsides are provided with shell body 29; Arranging successively electrical heating starting drive, samming current-sharing bed 17 and catalytic oxidation bed 18 along gas flow direction in each reative cell 16, wherein the electrical heating starting drive comprises a plurality of electrical heating wire 32 and stay pipes 33 parallel to each other of being wound with, and the two ends of each stay pipe 33 are passed inner housing 30, are inserted on the 3rd thermal insulation separation thermosphere 31; Samming current-sharing bed 17 is piled up by the honeycomb ceramic heat accumulator of macroporosity and is consisted of, some circles, square or polygonal hole are arranged on honeycomb ceramic heat accumulator, the interior filling catalyst of catalytic oxidation bed 18, catalyst is that cordierite honeycomb ceramic take small porosity is as carrier, alundum (Al2O3) is Second support, Pt, Pd are main active, be prepared from the equally distributed method of high dispersive rate, and samming current-sharing bed 17 and catalytic oxidation bed 18 both sides are equipped with fixed network 19; Fixed network 19 is used for the fixedly honeycomb ceramic heat accumulator of samming current-sharing bed 17 interior fillings and the catalyst carrier of catalytic oxidation bed 18 interior fillings, and the surrounding of fixed network 19 is fixedly connected with the inwall of inner housing 30; Gas flow direction in adjacent two reative cells 16 is opposite;
Air inlet system and exhaust system comprise hot blast tube connector 9, air inlet pipe 26, three air intake branches 22, three air inlet flared tubes 20, three air inlet cloth bellows 25, two exhaust gas centralized gas tanks 28, two collapsible tubes 34, two waste gas arms 35, flue gas leading 36 and waste gas flared tubes 12.The outside that wherein is positioned at two reative cells 16 of outermost end is communicated with air inlet cloth bellows 25, exhaust gas centralized gas tank 28 and air inlet cloth bellows 25 are disposed on successively between two adjacent reative cells 16, also are communicated with reative cell 16 respectively, be that each reative cell 16 all is communicated with air inlet cloth bellows 25 and an exhaust gas centralized gas tank 28, and the junction of the inner housing 30 of each reative cell 16 and air inlet cloth bellows 25, exhaust gas centralized gas tank 28 is equipped with sealing gasket 27; Each air inlet cloth bellows 25 all is communicated with air inlet pipe 26 through an air inlet flared tube 20, air intake branch 22 successively, each exhaust gas centralized gas tank 28 all is communicated with flue gas leading 36 through a collapsible tube 34, a waste gas arm 35 successively, air inlet pipe 26 connects the weary wind outlet 43 of preheater through hot blast tube connector 9, and flue gas leading 36 connects preheater exhaust gas entrance 42 through waste gas flared tube 12; The outside of hot blast tube connector 9, air inlet pipe 26, air inlet flared tube 20, collapsible tube 34, flue gas leading 36 is equipped with the first thermal insulation separation thermosphere 23, and the outside of air inlet cloth bellows 25, exhaust gas centralized gas tank 28 is equipped with the second thermal insulation separation thermosphere 24;
The heat-obtaining system of bleeding comprises the exhaust tube 14 that is provided with control valve 13,, wherein the outside of exhaust tube 14 is provided with the first thermal insulation separation thermosphere 23, and the inlet end of exhaust tube 14 is communicated with flue gas leading 36;
Measurement and control system comprises: measurement and control unit 37; Be arranged on the first pressure sensor 5, concentration sensor 4 and flowmeter 3 on the second weary wind transfer pipeline 7, be respectively used to measure pressure, concentration and the flow of weary wind in the second weary wind transfer pipeline 7; Be arranged on the second pressure sensor 10 and the first temperature sensor 11 on hot blast tube connector 9, be used for measuring the pressure and temperature of hot blast tube connector 9 interior weary wind; Be arranged on the second temperature sensor 21 of the honeycomb ceramic heat accumulator inside of measuring catalytic oxidation bed 18, be used for measuring the temperature of catalytic oxidation bed 18; Be arranged on the three-temperature sensor 45 on waste gas outlet pipe 6, be used for measuring the temperature of waste gas outlet; Be arranged on the 4th temperature sensor 15 on exhaust tube 14, be used for measuring the temperature of the hot blast of bleeding; The output of the first temperature sensor 11, the second temperature sensor 21, three-temperature sensor 45, the 4th temperature sensor 15, the first pressure sensor 5, the second pressure sensor 10, concentration sensor 4 and flowmeter 3 is connected with measurement and control unit 37 by holding wire, and the control end of control valve 13 is connected with measurement and control unit 37 by holding wire.
Embodiment 2
In the embodiment 2 shown in Fig. 5-6: the coal mine wind-lack gas preheating catalysis oxidizer of coal mine has six reative cells 16, air inlet system and exhaust system are made of hot blast tube connector 9, air inlet pipe 26, four air inlet flared tubes 20, four air inlet cloth bellows 25, three exhaust gas centralized gas tanks 28, three collapsible tubes 34, flue gas leading 36, waste gas flared tubes 12, air inlet pipe 26 is provided with four air intake branches 22, flue gas leading 36 is provided with three waste gas arms 35, and remainder is identical with embodiment 1.
Claims (5)
1. a multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine, comprise weary wind supply air system, preheater (8), even number reative cell (16), air inlet system and exhaust system, bleed heat-obtaining system and measurement and control system, it is characterized in that:
Weary wind supply air system comprises blower fan (1), the first weary wind transfer pipeline (2) and the second weary wind transfer pipeline (7), one end of the first weary wind transfer pipeline (2) is communicated with the mine air-lack outlet, and the other end is communicated with the second weary wind transfer pipeline (7) through blower fan (1);
preheater (8) comprises preheater core (39), the weary wind entrance of preheater (44), the weary wind outlet of preheater (43), preheater exhaust gas entrance (42), preheater waste gas outlet (38), preheater shell (41) and the 4th thermal insulation separation thermosphere (40), wherein preheater core (39) adopts gas-gas dividing wall type heat exchanger, the inner weary wind passage two ends of preheater core (39) export (43) with the weary wind entrance of preheater (44) and the weary wind of preheater respectively and are communicated with, the inner exhaust steam passage two ends of preheater core (39) are communicated with preheater exhaust gas entrance (42) and preheater waste gas outlet (38) respectively, the weary wind entrance of preheater (44) passes the 4th thermal insulation separation thermosphere (40), reach that preheater shell (41) is outside to be communicated with the second weary wind transfer pipeline (7), the 4th thermal insulation separation thermosphere (40) is passed in the weary wind outlet of preheater (43), reach preheater shell (41) outside, the inlet end that is communicated with air inlet system and exhaust system, preheater waste gas outlet (38) is communicated with ambient atmosphere through waste gas outlet pipe (6),
even number reative cell (16) is arranged side by side, each reative cell (16) surrounds by inner housing (30), the outside of inner housing (30) is surrounded by the 3rd thermal insulation separation thermosphere (31), be provided with shell body (29) outside the 3rd thermal insulation separation thermosphere (31), arranging successively the electrical heating starting drive along gas flow direction in each reative cell (16), samming current-sharing bed (17) and catalytic oxidation bed (18), wherein samming current-sharing bed (17) is piled up by the honeycomb ceramic heat accumulator of macroporosity and is consisted of, some circles are arranged on honeycomb ceramic heat accumulator, square or polygonal hole, the interior filling catalyst of catalytic oxidation bed (18), catalyst is that cordierite honeycomb ceramic take small porosity is as carrier, alundum (Al2O3) is Second support, Pt, Pd is main active, be prepared from the equally distributed method of high dispersive rate, and samming current-sharing bed (17) and catalytic oxidation bed (18) both sides are equipped with fixed network (19), gas flow direction in adjacent two reative cells (16) is opposite,
air inlet system and exhaust system comprise hot blast tube connector (9), air inlet pipe (26), a plurality of air intake branches (22), a plurality of air inlet flared tubes (20), a plurality of air inlet cloth bellows (25), a plurality of exhaust gas centralized gas tanks (28), a plurality of collapsible tubes (34), a plurality of waste gas arms (35), flue gas leading (36) and waste gas flared tube (12), the outside that wherein is positioned at two reative cells (16) of outermost end is communicated with air inlet cloth bellows (25), exhaust gas centralized gas tank (28) and air inlet cloth bellows (25) are disposed between adjacent two reative cells (16) successively, and be communicated with reative cell (16) respectively, be that each reative cell (16) all is communicated with air inlet cloth bellows (25) and an exhaust gas centralized gas tank (28), each air inlet cloth bellows (25) is all successively through an air inlet flared tube (20), air intake branch (22) is communicated with air inlet pipe (26), each exhaust gas centralized gas tank (28) is all successively through a collapsible tube (34), a waste gas arm (35) is communicated with flue gas leading (36), air inlet pipe (26) connects the weary wind outlet of preheater (43) through hot blast tube connector (9), flue gas leading (36) connects preheater exhaust gas entrance (42) through waste gas flared tube (12),
The heat-obtaining system of bleeding comprises the exhaust tube (14) that is provided with control valve (13), and wherein the inlet end of exhaust tube (14) is communicated with flue gas leading (36);
Measurement and control system comprises: measurement and control unit (37); Be arranged on the first pressure sensor (5), concentration sensor (4) and flowmeter (3) on the second weary wind transfer pipeline (7), be respectively used to measure pressure, concentration and the flow of weary wind in the second weary wind transfer pipeline (7); Be arranged on the second pressure sensor (10) and the first temperature sensor (11) on hot blast tube connector (9), be used for measuring the pressure and temperature of weary wind in hot blast tube connector (9); Be arranged on the temperature that inner the second temperature sensor (21) of catalytic oxidation bed (18) is used for measuring catalytic oxidation bed (18); Be arranged on the three-temperature sensor (45) on waste gas outlet pipe (6), be used for measuring the temperature of waste gas outlet; Be arranged on the 4th temperature sensor (15) on exhaust tube (14), be used for measuring the temperature of the hot blast of bleeding; The output of the first temperature sensor (11), the second temperature sensor (21), three-temperature sensor (45), the 4th temperature sensor (15), the first pressure sensor (5), the second pressure sensor (10), concentration sensor (4) and flowmeter (3) is connected with measurement and control unit (37) by holding wire, and the control end of control valve (13) is connected with measurement and control unit (37) by holding wire.
2. multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine as claimed in claim 1, it is characterized in that: fixed network (19) is used for the fixedly honeycomb ceramic heat accumulator of the interior filling of samming current-sharing bed (17) and the catalyst carrier of the interior filling of catalytic oxidation bed (18), and the surrounding of fixed network (19) is fixedly connected with the inwall of inner housing (30).
3. multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine as claimed in claim 1, it is characterized in that: the electrical heating starting drive comprises a plurality of electrical heating wire (32) and stay pipes (33) parallel to each other of being wound with, and the two ends of each stay pipe (33) are passed inner housing (30), are inserted on the 3rd thermal insulation separation thermosphere (31).
4. multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine as claimed in claim 1 is characterized in that: inner housing (30) is equipped with sealing gasket (27) with the junction of air inlet cloth bellows (25), exhaust gas centralized gas tank (28).
5. multi-reaction chamber wind-insufficient preheating catalysis oxidizer of coal mine as claimed in claim 1, it is characterized in that: the outside of hot blast tube connector (9), air inlet pipe (26), air inlet flared tube (20), collapsible tube (34), flue gas leading (36) and exhaust tube (14) is equipped with the first thermal insulation separation thermosphere (23), and the outside of air inlet cloth bellows (25), exhaust gas centralized gas tank (28) is equipped with the second thermal insulation separation thermosphere (24).
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| CN 201110089163 CN102205207B (en) | 2011-04-11 | 2011-04-11 | Coal mine methane preheating catalytic oxidation device with multiple reaction chambers |
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| CN 201110089163 CN102205207B (en) | 2011-04-11 | 2011-04-11 | Coal mine methane preheating catalytic oxidation device with multiple reaction chambers |
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| CN102773047B (en) * | 2012-08-05 | 2014-07-30 | 山东理工大学 | Coal mine ventilation preheating catalytic oxidizer with two-stage hot blast recirculation |
| CN102773011A (en) * | 2012-08-05 | 2012-11-14 | 山东理工大学 | Multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device |
| CN102773046A (en) * | 2012-08-05 | 2012-11-14 | 山东理工大学 | Combustor started regenerative catalytic oxidation device with a plurality of reaction chambers for coal mine ventilation air methane (VAM) |
| GB201318592D0 (en) | 2013-10-21 | 2013-12-04 | Johnson Matthey Davy Technologies Ltd | Process and apparatus |
| GB201504130D0 (en) | 2015-03-11 | 2015-04-22 | Johnson Matthey Davy Technologies Ltd | Process |
| CN105080337A (en) * | 2015-08-10 | 2015-11-25 | 中国矿业大学(北京) | Cyclone type coal mine ventilation air methane catalysis oxidation reactor |
| CN108854517B (en) * | 2018-05-31 | 2021-03-30 | 上海化工研究院有限公司 | Heating catalytic decomposition type air purification device for vehicle |
| CN108905609A (en) * | 2018-07-31 | 2018-11-30 | 中国华能集团有限公司 | Circulation of tail gas explosion-proof type coal mine gas catalytic oxidizing equipment and method |
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2011
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| US5366708A (en) * | 1992-12-28 | 1994-11-22 | Monsanto Eviro-Chem Systems, Inc. | Process for catalytic reaction of gases |
| CA2325966A1 (en) * | 2000-11-14 | 2002-05-14 | Bruce Richard Peachey | Method for treating vented or fugitive methane streams |
| CN1913953A (en) * | 2004-01-26 | 2007-02-14 | 日本碍子株式会社 | Selectively permeable membrane type reactor |
| WO2011037056A1 (en) * | 2009-09-25 | 2011-03-31 | 大阪瓦斯株式会社 | Method and apparatus for removing low concentrations of methane |
| CN101915117A (en) * | 2010-06-25 | 2010-12-15 | 中国矿业大学 | Coal mine methane gas oxidation device |
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