CN209654080U - A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source - Google Patents
A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source Download PDFInfo
- Publication number
- CN209654080U CN209654080U CN201822249458.7U CN201822249458U CN209654080U CN 209654080 U CN209654080 U CN 209654080U CN 201822249458 U CN201822249458 U CN 201822249458U CN 209654080 U CN209654080 U CN 209654080U
- Authority
- CN
- China
- Prior art keywords
- air
- gas
- mixing device
- pit shaft
- idle air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model belongs to mine energy conservation technical field, and in particular to a kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source.There is presently no the technologies for making full use of idle air and low concentration mash gas extraction.The utility model includes gas pump station, it is characterized in that: it further include idle air collecting hood, gas mixing device, main air blower, methane oxidized apparatus, gas mixing device, air heat exchanger, chimney and pit shaft, idle air collecting hood is connect by idle air pipeline with the entrance of gas mixing device, light concentration mash gas safety conveying device is connect by light concentration mash gas safety conveyance conduit with the entrance of gas mixing device, the inlet end of methane oxidized apparatus is connect by pipeline with the outlet of gas mixing device, the inlet end of gas mixing device is connect with the outlet hot air duct of methane oxidized apparatus and cryopumping pipeline respectively, the inlet end of air heat exchanger and the outlet end of gas mixing device connect.The utility model it is reasonable in design, securely and reliably, energy conservation and environmental protection.
Description
Technical field
The utility model belongs to mine energy conservation technical field, and in particular to a kind of to utilize idle air and the low concentration gas heat of oxidation
The pit shaft heat-insulation system in source.
Background technique
Mine shaft heat preservation is that mine Winter safety produces indispensable link, especially in northern area.
Currently, pit shaft heat preservation, which is generally used coal-burning boiler, provides heat source, pollution is big, and energy consumption is high, the state with energy-saving and emission-reduction
Family's environmental protection policy is runed counter to, and small scall coal-fired boiler needs are shut down within the coming years.
At the same time, for a long time, coalmine ventilation gas (idle air) methane concentration is low, enrichment is difficult, large-minded, utilization technology
Difficulty is larger, therefore is generally all directly discharged to atmosphere, is seldom recycled.The concentration generated in process of coal mining is low
In 7% low concentration mash gas extraction because cannot be civilian, it can not be used for internal combustion engine power generation, be chronically at emptying state.It is main in gas
Wanting ingredient is methane, and greenhouse effects such as are at 21 times of quality carbon dioxide, and direct emission not only causes huge energy wave
Take, will also aggravate the greenhouse effects of the earth.Therefore, idle air and low concentration mash gas extraction are made full use of, have energy saving resource,
" the quadruple effect " for reducing environmental pollution, promote Safety of Coal Mine Production and readjusting the energy structure, there is presently no such technologies.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of structure design conjunction
Reason, securely and reliably, the energy-saving and environment-friendly pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source.
The technical scheme in the invention for solving the above technical problem is: this utilizes idle air and the low concentration gas heat of oxidation
The pit shaft heat-insulation system in source includes gas pump station and light concentration mash gas safety conveying device, and the gas pump station passes through pipeline and low
The connection of concentration gas safety conveying device, design feature is: further include idle air collecting hood, gas mixing device, main air blower,
Methane oxidized apparatus, gas mixing device, air heat exchanger, chimney, pit shaft, high temperature hot air valve and idle air valve, the idle air are received
Collection covers on idle air discharge outlet, which is connect by idle air pipeline with the entrance of gas mixing device, described weary
Air valve is mounted on idle air pipeline, the light concentration mash gas safety conveying device by light concentration mash gas safety conveyance conduit with
The entrance of gas mixing device connects, and the inlet end of the methane oxidized apparatus is connected by the outlet of pipeline and gas mixing device
It connects, the inlet end of the gas mixing device is connect with the outlet hot air duct of methane oxidized apparatus and cryopumping pipeline respectively, institute
It states high temperature hot air valve to be mounted on outlet hot air duct, the inlet end of the air heat exchanger and the outlet end of gas mixing device connect
It connects, and the inlet end of the air heat exchanger is connected to outside air, the smoke outlet connection of the chimney and air heat exchanger,
The connection of the hot-blast outlet end of the pit shaft and air heat exchanger.
Further, the utility model further includes methane concentration instrument and emergency vent valve, the methane concentration instrument and tight
Anxious drain tap is installed in the pipeline for connecting methane oxidized apparatus and gas mixing device.
Further, the utility model further includes temperature in wellbore sensor, and the temperature in wellbore sensor is arranged in pit shaft
Around.
Further, main air blower described in the utility model is RTO main air blower.
The gas mixing device entrance of the utility model connects with idle air pipeline and light concentration mash gas safety conveyance conduit respectively
It connects, idle air is collected by idle air cover, and low concentration gas extraction is from gas pump station.The heat source that the utility model is previously mentioned has two
It is a, respectively coal mine methane (methane concentration about 0.3%VOL) and low concentration mash gas extraction (methane concentration about 10%VOL).
The utility model compared with prior art, has the following advantages that and effect: system design rationally, securely and reliably, section
It can environmental protection.Using the idle air of the useless row of coal mine and mash gas extraction as the heat source of pit shaft heat preservation, turns waste into wealth, reduce the combustion of enterprise
Material consumption, reduces the production cost of enterprise.The utility model energy conservation and environmental protection simultaneously, green high-efficient, arranged tail gas are not necessarily to desulfurization
Denitration process will not pollute environment.As national environmental protection policy is increasingly strict, the utility model will be obtained more
Using and better development prospect.
The utility model mixes coal mine methane and low concentration mash gas extraction by mixing machine, and gas density is down to
1.2%, it will be mixed by the high-temperature flue gas and low-temperature flue gas of oxidation unit oxidation discharge, flue gas is produced by air heat exchanger
Heat wind is sent to ventilating shaft, and pit shaft heat preservation is sent into after converging with cold air.This system emptied discarded idle air and low to coal mine originally
Concentration gas is made full use of, and as the heat source of pit shaft heat preservation, has not only avoided coal-burning boiler bring environmental pollution, but also reach
Turn waste into wealth, the purposes of energy-saving and emission-reduction.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the utility model embodiment and/or technical solution in the prior art
Apply example and/or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, be described below in it is attached
Figure is only that some embodiments of the utility model is not making the creative labor for those of ordinary skill in the art
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the knot of idle air and the pit shaft heat-insulation system of low concentration gas oxidation heat source is utilized in the utility model embodiment
Structure schematic diagram.
Label declaration: 1, gas pump station；2, light concentration mash gas safety conveying device；3, idle air discharge outlet；4, idle air is collected
Cover；5, gas mixing device；6, methane concentration instrument；7, emergency vent valve；8, main air blower；9, methane oxidized apparatus；10, gas is mixed
Device；11, air heat exchanger；12, chimney；13, pit shaft；14, temperature in wellbore sensor；15, high temperature hot air valve；16, idle air
Valve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1, aoxidizing the pit shaft heat-insulation system of heat source using idle air and low concentration gas in the present embodiment includes gas
Pumping plant 1, light concentration mash gas safety conveying device 2, idle air collecting hood 4, gas mixing device 5, methane concentration instrument 6, urgent exhaust
Valve 7, main air blower 8, methane oxidized apparatus 9, gas mixing device 10, air heat exchanger 11, chimney 12, pit shaft 13, temperature in wellbore pass
Sensor 14, high temperature hot air valve 15 and idle air valve 16.
Gas pump station 1 in the present embodiment is connected by pipeline and light concentration mash gas safety conveying device 2, idle air collecting hood
4 cover on idle air discharge outlet 3, which is connect by idle air pipeline with the entrance of gas mixing device 5, idle air valve
Door 16 is mounted on idle air pipeline, and light concentration mash gas safety conveying device 2 passes through light concentration mash gas safety conveyance conduit and gas
The entrance of mixing device 5 connects, and the inlet end of methane oxidized apparatus 9 is connect by pipeline with the outlet of gas mixing device 5.
The inlet end of gas mixing device 10 in the present embodiment respectively with the outlet hot air duct and low temperature of methane oxidized apparatus 9
Exhaust pipe connection, high temperature hot air valve 15 are mounted on outlet hot air duct, and the inlet end of air heat exchanger 11 and mixed gas fill
10 outlet end connection is set, and the inlet end of the air heat exchanger 11 is connected to outside air, chimney 12 and air heat exchanger 11
Smoke outlet connection, pit shaft 13 connect with the hot-blast outlet end of air heat exchanger 11.
Methane concentration instrument 6 and emergency vent valve 7 in the present embodiment are installed in for connecting 9 He of methane oxidized apparatus
On the pipeline of gas mixing device 5.Temperature in wellbore sensor 14 is arranged in around pit shaft 13.Main air blower 8 is RTO main air blower.
The process flow of idle air and the pit shaft heat-insulation system of low concentration gas oxidation heat source is utilized in the present embodiment are as follows: gas
Mixing device 5 passes through light concentration mash gas safety conveying device by the coal mine methane from idle air collecting hood 4 and from gas pump station 1
2 low concentration mash gas extraction is blended, and gas density passes through 9 high-temperature oxydation of methane oxidized apparatus after being down to 1.2%, discharge
High-temperature flue gas and low-temperature flue gas are mixed in gas mixing device 10, and flue gas generates hot wind by air heat exchanger 11 and send after mixing
To ventilating shaft, it is sent into pit shaft 13 after converging with cold air and keeps the temperature, exhaust gas then passes through chimney 12 and is emitted into atmosphere.
Light concentration mash gas safety conveying device 2 in the present embodiment is mainly by groups such as executing agency and monitor control systems
At.Executing agency mainly includes water-sealing fire-retardant explosion venting device, automatic explosion suppression device explosion suppressor, automatic explosion arrestment valve etc.；Monitoring control
System processed is made of regulated power supply, detonator signal controller, electric conversion control cabinet, sensor, combined aural and visual alarm etc..
Gas mixing device 5 in the present embodiment is dynamic continuous mixing device, and 1 low concentration gas of gas pump station is mixed into
In ventilation air gas, under the regulation of control system, mixed gas density is made to remain at 1.2% or less.Gas blending dress
The continuous dynamic mixture of ventilation air methane oxidation power generation, mixed precision and high degree of automation can be realized by setting 5, and circulation is big, and drag losses are small,
System is simple.
Methane oxidized apparatus 9 in the present embodiment can be import heat accumulating type thermal oxidizer, containing 2 inside it is heat-insulated one
Body formula heat exchanging bed, filled with enough volumes, pressure drop is smaller, conduct heat uniform medium, allows methane oxidized apparatus 9 mixed in entrance
Methane concentration is closed in gas not less than voluntarily continuous operation in the case where 0.45%.The high-temperature flue-gas of device discharge is up to 954
DEG C, about 90 DEG C of low-temperature flue gas temperature.
Air heat exchanger 11 in the present embodiment can be air-to-air heat exchanger, be added using the high-temperature hot-air that RTO is generated
Hot cold air, for the heat preservation gas supply of pit shaft 13.Air heat exchanger 11 is made of the plate of two pieces of honeycomb shapes, and sheet edges are by swashing
Flush weld is connected together, and circular spot weld is welded as among plate, has lesser welding stress and high bearing capacity.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to the utility model structure example explanation described in this specification.
All equivalence changes or simple change done according to structure, feature and principle described in the concept of the patent of the utility model, are wrapped
It includes in the protection scope of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from the knot of the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source, including gas pump station (1) and low concentration
Gas safety conveying device (2), the gas pump station (1) are connected by pipeline and light concentration mash gas safety conveying device (2),
It is characterized in that: further including idle air collecting hood (4), gas mixing device (5), main air blower (8), methane oxidized apparatus (9), mixed gas dress
(10), air heat exchanger (11), chimney (12), pit shaft (13), high temperature hot air valve (15) and idle air valve (16) are set, it is described weary
Wind collecting hood (4) covers on idle air discharge outlet (3), which passes through idle air pipeline and gas mixing device (5)
Entrance connection, the idle air valve (16) are mounted on idle air pipeline, and the light concentration mash gas safety conveying device (2) passes through low
Concentration gas safety conveyance conduit is connect with the entrance of gas mixing device (5), and the inlet end of the methane oxidized apparatus (9) is logical
Pipeline is crossed to connect with the outlet of gas mixing device (5), the inlet end of the gas mixing device (10) respectively with methane oxidized apparatus
(9) outlet hot air duct is connected with cryopumping pipeline, and the high temperature hot air valve (15) is mounted on outlet hot air duct,
The inlet end of the air heat exchanger (11) is connect with the outlet end of gas mixing device (10), and the air inlet of the air heat exchanger (11)
End be connected to outside air, the chimney (12) connect with the smoke outlet of air heat exchanger (11), the pit shaft (13) and
The hot-blast outlet end of air heat exchanger (11) connects.
2. the pit shaft heat-insulation system according to claim 1 using idle air and low concentration gas oxidation heat source, feature exist
In: it further include methane concentration instrument (6) and emergency vent valve (7), the methane concentration instrument (6) and emergency vent valve (7) are equal
It is mounted on the pipeline for connecting methane oxidized apparatus (9) and gas mixing device (5).
3. the pit shaft heat-insulation system according to claim 1 using idle air and low concentration gas oxidation heat source, feature exist
In: it further include temperature in wellbore sensor (14), the temperature in wellbore sensor (14) is arranged around pit shaft (13).
4. the pit shaft heat-insulation system according to claim 1 using idle air and low concentration gas oxidation heat source, feature exist
In: the main air blower (8) is RTO main air blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249458.7U CN209654080U (en) | 2018-12-29 | 2018-12-29 | A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249458.7U CN209654080U (en) | 2018-12-29 | 2018-12-29 | A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654080U true CN209654080U (en) | 2019-11-19 |
Family
ID=68519638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822249458.7U Active CN209654080U (en) | 2018-12-29 | 2018-12-29 | A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141138A (en) * | 2020-02-11 | 2020-05-12 | 山东理工大学 | Device and method for reducing oxygen content of hot air for drying coal slime in gas oxidation furnace |
-
2018
- 2018-12-29 CN CN201822249458.7U patent/CN209654080U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141138A (en) * | 2020-02-11 | 2020-05-12 | 山东理工大学 | Device and method for reducing oxygen content of hot air for drying coal slime in gas oxidation furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103643986B (en) | Integrated device for synergetic oxidation of low-concentration gas and ventilation gas of self-backheating coal mine | |
| CN205392185U (en) | Gas boiler catalytic denitrification system | |
| CN106196134A (en) | A kind of fume afterheat energy-conserving and environment-protective coal dust preparation system | |
| CN208526264U (en) | A kind of gas oxidative system | |
| CN209654080U (en) | A kind of pit shaft heat-insulation system using idle air and low concentration gas oxidation heat source | |
| CN205119209U (en) | Heating system is united to production and use of marsh gas biological energy source and solar energy | |
| CN202014482U (en) | Equipment for supplying heat and carbon dioxide to vegetables and/or algae by using flue gas of electric power plant | |
| CN104312918B (en) | A kind of method utilizing burning waste gas to promote aerobic fermentation reaction | |
| CN209654075U (en) | A kind of coal mine gas utilization system | |
| CN109519940A (en) | A kind of landfill Flash Gas Compression Skid System and method for household refuse landfill sites | |
| CN209655764U (en) | A kind of coal slime drying system using idle air and mash gas extraction oxidation heat source | |
| CN204097491U (en) | A kind of device utilizing combustion exhaust to promote aerobic fermentation reaction | |
| CN110174021B (en) | Waste heat comprehensive utilization system for drying coal mine wet materials by using low-concentration gas and operation method | |
| CN102072499A (en) | Flue gas low temperature denitriding and coal slime drying combined circulating system | |
| CN204718348U (en) | High-temperature hot-air and coal slime drying control system are produced in coal mine light concentration mash gas oxidation | |
| CN111336521A (en) | Ventilation heating system and method for waste incineration power generation | |
| CN207877377U (en) | It is a kind of to couple energy supplying system based on more air sources of biogas and natural gas | |
| CN208382191U (en) | A kind of adsorbing coupled catalytic combustion system of low-concentration organic exhaust gas | |
| CN209512152U (en) | It is a kind of to be combined the unit using electric air source water heater group depth recovered flue gas latentization waste heat | |
| CN206199039U (en) | A kind of denitration ammonia gas for pretreatment system | |
| CN210079221U (en) | Blowing gas flue gas denitration device | |
| CN208519748U (en) | A kind of biomass combustion heating cycle system | |
| CN208519981U (en) | A kind of biomass high-efficiency energy-saving burning boiler | |
| CN203177200U (en) | Cement kiln oxygen-enriched combustion-supporting system | |
| CN107036156B (en) | Distributed energy station waste heat utilization system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |