CN219826804U - Underground gasification furnace for residual coal - Google Patents
Underground gasification furnace for residual coal Download PDFInfo
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- CN219826804U CN219826804U CN202320499807.9U CN202320499807U CN219826804U CN 219826804 U CN219826804 U CN 219826804U CN 202320499807 U CN202320499807 U CN 202320499807U CN 219826804 U CN219826804 U CN 219826804U
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- fixedly connected
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- coal
- filter screen
- gas
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- 239000003245 coal Substances 0.000 title claims abstract description 53
- 238000002309 gasification Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000000571 coke Substances 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 10
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 3
- 235000019809 paraffin wax Nutrition 0.000 claims description 3
- 235000019271 petrolatum Nutrition 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 3
- 239000000428 dust Substances 0.000 claims 1
- 239000003034 coal gas Substances 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Abstract
The utility model discloses a residual coal underground gasifier which comprises a ground surface and a rock layer, wherein a gas pipe is fixedly connected to the inside of the ground surface, a plurality of blocking plates are fixedly connected to two side walls of the gas pipe, and a first filter screen is fixedly connected to the inside of the gas pipe. According to the utility model, water and silt at the top of a coal layer are extracted through the silt water pump, after the water and silt are extracted, the dry firewood layer is ignited through the igniter, so that the gasoline barrel is burnt, the coke layer and paraffin are slowly ignited by a big fire, the coal layer is burnt, so that coal gas is generated, then the coal gas passes through the blocking plate and the first filter screen through the gas pipe, fixed impurities in the coal gas are removed through the blocking plate and the first filter screen, and then the coal gas is conveyed to a designated position, so that the residual coal underground gasifier has the advantages of draining the coal layer, high coal ignition efficiency and blockage prevention of the gas pipe.
Description
Technical Field
The utility model relates to the technical field of gasifiers, in particular to an underground residual coal gasifier.
Background
Underground coal gasification is a process in which coal under the ground is burned under control, and combustible gas is produced by thermal and chemical actions on the coal.
Currently, chinese patent publication No. CN217354343U discloses a video monitoring device in a coal underground gasification furnace, comprising: the high-temperature-resistant camera is used for carrying out video monitoring in the underground coal gasifier; the video acquisition unit is used for supplying power, storing video and regulating and controlling the high-temperature-resistant camera; the high-temperature-resistant protective cover is used for protecting the high-temperature-resistant camera; the low-temperature inert gas supply unit is used for providing low-temperature inert gas for the low-temperature inert gas supply pipe; the low-temperature inert gas supply pipe is used for introducing low-temperature inert gas into the high-temperature resistant protective cover for cooling protection, and forming a sweeping gas curtain on the outer surface of the high-temperature resistant protective cover; an atomized water supply unit for supplying water to the atomized water spray head at regular intervals; the atomized water spray head is used for regularly spraying atomized water on the outer surface of the high-temperature-resistant protective cover for cleaning.
However, in the running process of the underground coal gasifier, as the mining space is increased, the overlying rock of the underground coal gasifier can locally collapse, a collapse zone and a crack zone are formed at the upper part of the combustion space, the bottom plate can also form the crack zone, if the surrounding soil contains abundant water, water can flow into the combustion space of the underground coal gasifier, and as the high temperature in the combustion space of the underground coal gasifier can change water into water vapor, the quality of coal gas is affected, and meanwhile, when water flows into a coal layer, the phenomenon of slow ignition and low ignition success of the coal layer is caused by moisture of the coal layer, and meanwhile, the coal can carry a large amount of solid impurities in the gasification process, so that a gas pipe is extremely easy to be blocked.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide the residual coal underground gasifier, which has the advantages of high drainage efficiency of a coal layer, high ignition efficiency of coal and prevention of blockage of a gas pipe, and solves the problems that water flows into a combustion space area of the coal gasifier to become steam to affect gas quality, the coal layer is moist to cause low ignition efficiency and blockage of the gas pipe.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a incomplete coal underground gasification stove, includes earth's surface and rock layer, the inside fixedly connected with gas-supply pipe of earth's surface, the both sides wall of gas-supply pipe all fixedly connected with a plurality of barrier plates, the inside fixedly connected with first filter screen of gas-supply pipe, and first filter screen is located the upper end of barrier plate, the right side in rock layer inside has been seted up the burning zone, the inside in burning zone is provided with ignition unit, the left side in rock layer inside has been seted up the gallery district, the inside in gallery district is provided with blowdown unit, be provided with the isolation airtight between gallery district and the burning zone;
the ignition unit comprises an ignition gallery arranged at the bottom of a combustion space area, the top of the ignition gallery is fixedly connected with a plurality of support columns, the top of the support columns is fixedly connected with a support plate, the top of the support plate is fixedly connected with a plurality of igniters, the top of the support plate is provided with a dry firewood layer, the inside of the dry firewood layer is provided with a plurality of gasoline barrels, the top of the dry firewood layer is provided with a coke layer, the inside of the coke layer is provided with a plurality of paraffin waxes, and the top of the coke layer is provided with a coal layer;
the blowdown unit includes the silt water pump of fixed connection at the gallery district top, the top intercommunication of silt water pump has the outlet pipe, the right side intercommunication of silt water pump has the water suction pipe, and the water suction pipe extends to the inside in the burning zone, the inside fixedly connected with square frame in the burning zone.
Preferably, the bottom of the filter screen is fixedly connected with a vibrating motor.
Preferably, the blocking plate is provided with a plurality of holes inside.
As a preferable mode of the utility model, a temperature sensor and a light sensor are arranged at the top of the coal layer.
As preferable, the square frame is internally fixedly connected with a second filter screen.
As the preferable mode of the utility model, the top of the square frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw rod, the screw rod extends to the inside of the square frame, the surface of the screw rod is sleeved with a screw sleeve, the left side of the screw sleeve is fixedly connected with a brush, and the brush is attached to the second filter screen.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, water and silt at the top of a coal layer are extracted through the silt water pump, after the water and silt are extracted, the dry firewood layer is ignited through the igniter, so that the gasoline barrel is burnt, the coke layer and paraffin are slowly ignited by a big fire, the coal layer is burnt, so that coal gas is generated, then the coal gas passes through the blocking plate and the first filter screen through the gas pipe, fixed impurities in the coal gas are removed through the blocking plate and the first filter screen, and then the coal gas is conveyed to a designated position, so that the residual coal underground gasifier has the advantages of draining the coal layer, high coal ignition efficiency and blockage prevention of the gas pipe.
2. According to the utility model, by arranging the vibration motor, the phenomenon of blockage caused by the fact that the first filter screen filters fixed sundries in the coal gas for a long time is avoided, and the practicability is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of A in FIG. 1, which is a structural view of the present utility model;
fig. 3 is an enlarged view of B in fig. 1, which is a structural diagram of the present utility model.
In the figure: 1. a surface; 2. a rock layer; 3. a gas pipe; 4. a blocking plate; 5. a first filter screen; 6. a combustion space area; 7. an ignition unit; 71. igniting a gallery; 72. a support column; 73. a support plate; 74. an igniter; 75. a dry firewood layer; 76. a gasoline drum; 77. a coke layer; 78. paraffin wax; 79. a coal layer; 8. a gallery area; 9. a sewage discharge unit; 91. a silt water pump; 92. a water outlet pipe; 93. a water suction pipe; 94. a square frame; 10. isolating and sealing; 11. a vibration motor; 12. a hole; 13. a temperature sensor; 14. a light-sensitive sensor; 15. a second filter screen; 16. a motor; 17. a screw; 18. a screw sleeve; 19. a brush.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, an underground gasification furnace for residual coal comprises a ground surface 1 and a rock layer 2, wherein a gas pipe 3 is fixedly connected to the inside of the ground surface 1, a plurality of baffle plates 4 are fixedly connected to two side walls of the gas pipe 3, a first filter screen 5 is fixedly connected to the inside of the gas pipe 3, the first filter screen 5 is positioned at the upper end of the baffle plates 4, a combustion space area 6 is formed on the right side of the inside of the rock layer 2, an ignition unit 7 is arranged in the combustion space area 6, a drift region 8 is formed on the left side of the inside of the rock layer 2, a pollution discharge unit 9 is arranged in the drift region 8, and an isolation seal 10 is arranged between the drift region 8 and the combustion space area 6;
the ignition unit 7 comprises an ignition gallery 71 arranged at the bottom of the combustion space area 6, the top of the ignition gallery 71 is fixedly connected with a plurality of support columns 72, the top of the support columns 72 is fixedly connected with a support plate 73, the top of the support plate 73 is fixedly connected with a plurality of igniters 74, the top of the support plate 73 is provided with a dry firewood layer 75, a plurality of gasoline barrels 76 are arranged in the dry firewood layer 75, the top of the dry firewood layer 75 is provided with a coke layer 77, a plurality of paraffin 78 are arranged in the coke layer 77, and a coal layer 79 is arranged at the top of the coke layer 77;
the blowdown unit 9 includes the silt water pump 91 of fixed connection at the gallery district 8 top, and the top intercommunication of silt water pump 91 has outlet pipe 92, and the right side intercommunication of silt water pump 91 has the water suction pipe 93, and the water suction pipe 93 extends to the inside of fire zone 6, and the inside fixedly connected with square frame 94 of fire zone 6.
Referring to fig. 1, a vibration motor 11 is fixedly connected to the bottom of the first filter screen 5.
As a technical optimization scheme of the utility model, by arranging the vibration motor 11, the phenomenon of blockage caused by fixed sundries in the gas filtered by the first filter screen 5 for a long time is avoided, and the practicability is improved.
Referring to fig. 1, the blocking plate 4 is internally provided with a plurality of holes 12.
As a technical optimization scheme of the utility model, through arranging the holes 12, the gas can circulate at a higher speed, and the phenomenon of poor gas circulation efficiency caused by arranging the baffle plate 4 is avoided.
Referring to fig. 1 and 2, a temperature sensor 13 and a light sensor 14 are provided on top of the coal layer 79.
As a technical optimization scheme of the utility model, the temperature sensor 13 and the light sensor 14 are arranged, so that the temperature and the light signal in the ignition roadway 71 in the ignition process can be monitored, and whether the ignition process in the ignition roadway 71 is successful or not can be determined through feedback by analyzing the temperature and the light signal.
Referring to fig. 1, a second filter screen 15 is fixedly connected to the inside of the square frame 94.
As a technical optimization scheme of the utility model, the second filter screen 15 is arranged, so that the phenomenon of poor water absorption of the water absorption pipe 93 caused by blockage of the water absorption pipe 93 by coal and sundries is avoided, and the protection is improved.
Referring to fig. 1, a motor 16 is fixedly connected to the top of a square frame 94, a screw 17 is fixedly connected to the output end of the motor 16, the screw 17 extends to the inside of the square frame 94, a screw sleeve 18 is sleeved on the surface of the screw 17, a brush 19 is fixedly connected to the left side of the screw sleeve 18, and the brush 19 is attached to a second filter screen 15.
As a technical optimization scheme of the utility model, through arranging the motor 16, the screw 17, the screw sleeve 18 and the brush 19, the phenomenon of poor drainage efficiency caused by blocking of the second filter screen 15 by sludge is avoided, and the efficiency is improved.
The working principle and the using flow of the utility model are as follows: firstly, water and sludge at the top of the coal layer 79 are pumped into the water outlet pipe 92 through the sludge water pump 91 and the water suction pipe 93 and then discharged into the gallery area 8, after the water and the sludge are pumped, the dry firewood layer 75 is ignited through the igniter 74 so that the gasoline barrel 76 burns, the coke layer 77 is slowly ignited by a big fire, the paraffin 78 is ignited, the coal layer 79 is more quickly ignited by the big fire so that coal gas is generated, the coal gas passes through the blocking plate 4 and the first filter screen 5 through the gas pipe 3, fixed impurities in the coal gas are removed and filtered through the blocking plate 4 and the first filter screen 5, and then the coal gas is conveyed to a designated position.
To sum up: the residual coal underground gasifier solves the problems that the ignition efficiency is low and the gas pipe 3 is blocked due to the fact that water flows into the combustion space area 6 of the coal gasifier to become steam to affect the coal gas quality and the coal layer 79 is wet through the ignition unit 7 and the pollution discharge unit 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a incomplete coal underground gasification stove, includes earth's surface (1) and rock layer (2), its characterized in that: the novel stone dust collector is characterized in that a gas pipe (3) is fixedly connected to the inside of the earth surface (1), a plurality of blocking plates (4) are fixedly connected to the two side walls of the gas pipe (3), a first filter screen (5) is fixedly connected to the inside of the gas pipe (3), the first filter screen (5) is located at the upper end of the blocking plates (4), a combustion space area (6) is formed in the right side of the inside of the stone layer (2), an ignition unit (7) is arranged in the combustion space area (6), a drift region (8) is formed in the left side of the inside of the stone layer (2), a pollution discharge unit (9) is arranged in the drift region (8), and an isolation seal (10) is arranged between the drift region (8) and the combustion space area (6);
the ignition unit (7) comprises an ignition gallery (71) formed at the bottom of a combustion space area (6), a plurality of support columns (72) are fixedly connected to the top of the ignition gallery (71), a support plate (73) is fixedly connected to the top of the support column (72), a plurality of igniters (74) are fixedly connected to the top of the support plate (73), a dry firewood layer (75) is arranged at the top of the support plate (73), a plurality of gasoline barrels (76) are arranged in the dry firewood layer (75), a coke layer (77) is arranged at the top of the dry firewood layer (75), a plurality of paraffin waxes (78) are arranged in the coke layer (77), and a coal layer (79) is arranged at the top of the coke layer (77);
the sewage draining unit (9) comprises a sludge water pump (91) fixedly connected to the top of a gallery area (8), a water outlet pipe (92) is communicated with the top of the sludge water pump (91), a water suction pipe (93) is communicated with the right side of the sludge water pump (91), the water suction pipe (93) extends to the inside of a combustion space area (6), and a square frame (94) is fixedly connected to the inside of the combustion space area (6).
2. The underground gasification furnace for residual coal according to claim 1, wherein: the bottom of the first filter screen (5) is fixedly connected with a vibrating motor (11).
3. The underground gasification furnace for residual coal according to claim 1, wherein: a plurality of holes (12) are formed in the blocking plate (4).
4. The underground gasification furnace for residual coal according to claim 1, wherein: the top of the coal layer (79) is provided with a temperature sensing sensor (13) and a light sensing sensor (14).
5. The underground gasification furnace for residual coal according to claim 1, wherein: the square frame (94) is fixedly connected with a second filter screen (15) inside.
6. The underground gasification furnace for residual coal according to claim 5, wherein: the top fixedly connected with motor (16) of square frame (94), the output fixedly connected with screw rod (17) of motor (16), and screw rod (17) extend to the inside of square frame (94), the surface cover of screw rod (17) is equipped with swivel nut (18), the left side fixedly connected with brush (19) of swivel nut (18), and brush (19) are pasted mutually with second filter screen (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499807.9U CN219826804U (en) | 2023-03-15 | 2023-03-15 | Underground gasification furnace for residual coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499807.9U CN219826804U (en) | 2023-03-15 | 2023-03-15 | Underground gasification furnace for residual coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219826804U true CN219826804U (en) | 2023-10-13 |
Family
ID=88245195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320499807.9U Active CN219826804U (en) | 2023-03-15 | 2023-03-15 | Underground gasification furnace for residual coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219826804U (en) |
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2023
- 2023-03-15 CN CN202320499807.9U patent/CN219826804U/en active Active
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