CN102773011A - Multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device - Google Patents
Multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device Download PDFInfo
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- CN102773011A CN102773011A CN2012102822694A CN201210282269A CN102773011A CN 102773011 A CN102773011 A CN 102773011A CN 2012102822694 A CN2012102822694 A CN 2012102822694A CN 201210282269 A CN201210282269 A CN 201210282269A CN 102773011 A CN102773011 A CN 102773011A
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Abstract
The invention relates to a multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device. The device comprises a ventilation delivery pipe, a blower, an ventilation inlet manifold, a ventilation exhaust manifold, a plurality of reaction chambers and a backheating system, wherein the ventilation delivery pipe is connected with the ventilation inlet manifold through the blower; each reaction chamber is enclosed by a reaction chamber housing provided with a heat preservation layer; and an electric heater strip and a catalytic agent ceramic layer are successively arranged in the reaction chamber along a gas flow direction; the multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device is characterized in that: an entrance of each reaction chamber is respectively connected with the ventilation inlet manifold through an expansion pipe and a ventilation inlet branch successively; an exit of each reaction chamber is respectively connected with the ventilation exhaust manifold through a contraction pipe and a ventilation exhaust branch successively; the backheating system comprises a backheating inlet pipe, a backheating air blower and a backheating connecting pipe provided with a backheating valve, wherein one end of the backheating inlet pipe is communicated with the ventiliation exhaust manifold; and the other end of the backheating inlet pipe is communicated with the ventilation inlet manifold successively through the backheating air blower and the backheating connecting pipe. The multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device provided by the invention has the advantages of compact structure, high heat recovery efficiency and small floor space.
Description
Technical field
The present invention provides a kind of multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment, belongs to super low concentration methane oxidation technical field.
Background technology
The main component of coal mine gas is a methane, is a kind of utilizable gas energy.But in order to improve the security of Coal Production, adopt a large amount of the ventilation usually with directly it being discharged among the atmosphere after the gas dilution.The direct discharging of this coal mine wind-lack gas has caused the huge waste of limited non-renewable resources on the one hand; Atmosphere pollution and greenhouse effects have also been aggravated on the other hand: are 21 times of carbon dioxide in the methane greenhouse effects in 100 years; Methane accounts for 17% of global warming share, is only second to carbon dioxide.At present, China's coal-mine every year to the methane content of airborne release up to 20,000,000,000 Nm
3, wherein, ventilation air gas accounts for more than 150 hundred million Nm
3The coal mine methane discharge capacity is huge; Ventilation air gas concentration is very low; These two factors are main difficult problems of its utilization of restriction; Effectively utilizing method at present is to adopt hot counter flow oxidation technology (Thermal Flow Reversal Reactor is called for short TFRR) and catalysis counter flow oxidation technology (Catalytic Flow Reversal is called for short CFRR); Adopt TFRR technical finesse coal mine wind-lack gas at home and abroad the carrying out of success commercial application, and the CFRR technology does not have the report of handling ventilation air gas demonstration operation at colliery scene as yet.But consider from angle of practical application, adopt TFRR technical finesse coal mine wind-lack gas to exist to take up an area of in relatively large, the oxidation bed that ceramic honey comb can take place brokenly to stop up after long-term the use, drag losses very greatly, control degree automatically has relatively high expectations, operating technology requires very high subject matter.Shandong Technology Univ discloses in the patent of declaring (201110089163.8) a kind of " multi-reaction chamber coal mine methane preheating catalytic oxidizer "; Weary wind gets into preheater and is heated intensification; In the catalytic oxidation bed, be oxidized to carbon dioxide and water; Hot gas after the oxidation enters atmosphere after the preheater cooling, this oxidator has effectively overcome the problem of counter flow oxidation technology.But because the hot gas after the weary wind oxidation carries out heat recovery through preheater, heat recovery efficiency receives the restriction of preheater, and its efficient is limited, and preheater has increased the cost and the floor space of whole oxidation unit simultaneously, and it awaits further improvement.
Summary of the invention
The object of the invention provides and a kind ofly can overcome the shortcoming that exists in the above-mentioned prior art or deficiency, heat recovery efficiency is high, low in energy consumption, cost is low, floor space is little multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment.Technical scheme is:
A kind of multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment; Comprise weary wind carrier pipe, pressure fan, weary wind inlet manifold, a plurality of weary wind air intake branch, a plurality of weary wind exhaust branch pipe, weary wind exhaust main, a plurality of reative cell and heat regenerative system; Wherein weary wind carrier pipe meets weary wind inlet manifold through pressure fan; Each reative cell surrounds by the reative cell housing that is provided with heat-insulation layer, is arranging electrical heating wire and cat ceramic layer successively along gas flow direction in the reative cell; It is characterized in that: the inlet of each reative cell meets weary wind inlet manifold through convergent divergent channel, weary wind air intake branch respectively successively; The outlet of each reative cell connects weary wind exhaust main, the other end and the atmosphere of weary wind exhaust main through collapsible tube, weary wind exhaust branch pipe respectively successively; Heat regenerative system comprises heat regeneration inlet pipe, backheat blower fan and is provided with the backheat tube connector of backheat valve, wherein an end of heat regeneration inlet pipe and weary wind exhaust main, and the other end is connected with weary wind inlet manifold through backheat blower fan, backheat tube connector successively.
Described multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment, reative cell comprises 2 ~ 6.
Major advantage of the present invention and beneficial effect are:
1, heat regenerative system can directly be sent the weary wind exhaust after the oxidation into weary wind gas handling system; Through realizing being heated reaction temperature with mixing of coal mine methane air inlet; Get into reative cell then and carry out catalytic oxidation; Weary wind heat of exhaust organic efficiency through heat regenerative system is 100%, makes the heat recovery efficiency of oxidation unit higher.
2, a plurality of reative cells are combined in employing, and adopt a cover backheat system to concentrate preheating, can reduce the volume and the floor space of whole device greatly; This kind structure realizes modularized design and manufacturing easily simultaneously.
3, heat regenerative system is provided with the backheat valve, can adjust the backheat air quantity at any time according to the variation of coal mine methane air inlet state (intake air temperature, methane concentration etc.), helps the stable operation of device.
4, utilize the recycling of heat regenerative system realization exhaust gas heat, significantly reduced volume, floor space and the cost of whole device, because of not receiving the restriction of preheater, the heat of exhaust organic efficiency is high simultaneously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Among the figure: 1. weary wind carrier pipe 2. pressure fans 3. weary wind inlet manifold 4. weary wind air intake branch 5. convergent divergent channels 6. electrical heating wires 7. reative cell housings 8. heat-insulation layers 9. cat ceramic layers 10. collapsible tube 11. weary wind exhaust branch pipe 12. weary wind exhaust main 13. heat regeneration inlet pipes 14. backheat blower fans 15. backheat tube connectors 16. backheat valves
The specific embodiment
In the embodiment shown in fig. 1: comprise 3 reative cells, weary wind carrier pipe 1 meets weary wind inlet manifold 3 through pressure fan 2; Each reative cell surrounds by the reative cell housing 7 that is provided with heat-insulation layer 8, is arranging electrical heating wire 6 and cat ceramic layer 9 successively along gas flow direction in the reative cell; The inlet of each reative cell meets weary wind inlet manifold 3 through convergent divergent channel 5, weary wind air intake branch 4 respectively successively; The outlet of each reative cell connects weary wind exhaust main 12, the other end and the atmosphere of weary wind exhaust main 12 through collapsible tube 10, weary wind exhaust branch pipe 11 respectively successively; Heat regenerative system comprises heat regeneration inlet pipe 13, backheat blower fan 14 and is provided with the backheat tube connector 15 of backheat valve 16; Wherein an end of heat regeneration inlet pipe 13 and weary wind exhaust main 12, the other end is connected with weary wind inlet manifold 3 through backheat blower fan 14, backheat tube connector 15 successively.
Claims (2)
1. multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment; Comprise weary wind carrier pipe (1), pressure fan (2), weary wind inlet manifold (3), a plurality of weary wind air intake branches (4), a plurality of weary wind exhaust branch pipes (11), weary wind exhaust main (12), a plurality of reative cell and heat regenerative system; Wherein weary wind carrier pipe (1) meets weary wind inlet manifold (3) through pressure fan (2); Each reative cell surrounds by the reative cell housing (7) that is provided with heat-insulation layer (8), is arranging electrical heating wire (6) and cat ceramic layer (9) successively along gas flow direction in the reative cell; It is characterized in that: the inlet of each reative cell meets weary wind inlet manifold (3) through convergent divergent channel (5), weary wind air intake branch (4) respectively successively; The outlet of each reative cell connects weary wind exhaust main (12), the other end and the atmosphere of weary wind exhaust main (12) through collapsible tube (10), weary wind exhaust branch pipe (11) respectively successively; Heat regenerative system comprises heat regeneration inlet pipe (13), backheat blower fan (14) and is provided with the backheat tube connector (15) of backheat valve (16); Wherein an end of heat regeneration inlet pipe (13) and weary wind exhaust main (12), the other end is connected with weary wind inlet manifold (3) through backheat blower fan (14), backheat tube connector (15) successively.
2. multi-reaction chamber coal mine methane backheat catalytic oxidizing equipment as claimed in claim 1, it is characterized in that: reative cell comprises 2 ~ 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102822694A CN102773011A (en) | 2012-08-05 | 2012-08-05 | Multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device |
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| CN2012102822694A CN102773011A (en) | 2012-08-05 | 2012-08-05 | Multi-reaction-chamber coal mine ventilation backheating catalytic oxidation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479087A (en) * | 2019-08-12 | 2019-11-22 | 江苏水蓝生态环境科技有限公司 | A kind of fume cleaning equipment of the adsorption filtration of environmental protection equipment |
| CN110559847A (en) * | 2019-08-12 | 2019-12-13 | 江苏水蓝生态环境科技有限公司 | Waste gas treatment purifies environment-friendly device |
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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 |
| 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 |
| CN1393283A (en) * | 2001-07-02 | 2003-01-29 | 中国石油化工股份有限公司 | Process for cleaning waste gas containing combustible components |
| WO2010069185A1 (en) * | 2008-12-17 | 2010-06-24 | 胜利油田胜利动力机械集团有限公司 | A method for destroying coal mine low concentration methane gas and an apparatus thereof |
| 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 |
| CN102205207A (en) * | 2011-04-11 | 2011-10-05 | 山东理工大学 | Coal mine methane preheating catalytic oxidation device with multiple reaction chambers |
| CN102218286A (en) * | 2011-04-11 | 2011-10-19 | 山东理工大学 | Preheating and catalytic oxidizing device of coal mine ventilation air methane |
| CN102225321A (en) * | 2011-04-11 | 2011-10-26 | 山东理工大学 | Preheating catalytic-oxidation device with burner starting for coal mine ventilation air methane |
| CN202700368U (en) * | 2012-08-05 | 2013-01-30 | 山东理工大学 | Coal mine ventilation air methane back-heating catalyzed oxidation device with multiple reaction chambers |
-
2012
- 2012-08-05 CN CN2012102822694A patent/CN102773011A/en active Pending
Patent Citations (10)
| 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 |
| 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 |
| CN1393283A (en) * | 2001-07-02 | 2003-01-29 | 中国石油化工股份有限公司 | Process for cleaning waste gas containing combustible components |
| WO2010069185A1 (en) * | 2008-12-17 | 2010-06-24 | 胜利油田胜利动力机械集团有限公司 | A method for destroying coal mine low concentration methane gas and an apparatus thereof |
| 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 |
| CN102205207A (en) * | 2011-04-11 | 2011-10-05 | 山东理工大学 | Coal mine methane preheating catalytic oxidation device with multiple reaction chambers |
| CN102218286A (en) * | 2011-04-11 | 2011-10-19 | 山东理工大学 | Preheating and catalytic oxidizing device of coal mine ventilation air methane |
| CN102225321A (en) * | 2011-04-11 | 2011-10-26 | 山东理工大学 | Preheating catalytic-oxidation device with burner starting for coal mine ventilation air methane |
| CN202700368U (en) * | 2012-08-05 | 2013-01-30 | 山东理工大学 | Coal mine ventilation air methane back-heating catalyzed oxidation device with multiple reaction chambers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479087A (en) * | 2019-08-12 | 2019-11-22 | 江苏水蓝生态环境科技有限公司 | A kind of fume cleaning equipment of the adsorption filtration of environmental protection equipment |
| CN110559847A (en) * | 2019-08-12 | 2019-12-13 | 江苏水蓝生态环境科技有限公司 | Waste gas treatment purifies environment-friendly device |
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Application publication date: 20121114 |