CN213116285U - Coal underground gasification experiment simulation device - Google Patents
Coal underground gasification experiment simulation device Download PDFInfo
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- CN213116285U CN213116285U CN202021776012.0U CN202021776012U CN213116285U CN 213116285 U CN213116285 U CN 213116285U CN 202021776012 U CN202021776012 U CN 202021776012U CN 213116285 U CN213116285 U CN 213116285U
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Abstract
The utility model discloses a coal underground gasification experiment analogue means, including the horizontal tank body, both ends set up the arc head about the horizontal tank body, be equipped with cylindrical or rectangle gasifier cavity in the tank body, gasifier cavity sets gradually wear-resisting waterproof layer and fire-resistant insulating layer to between the tank body shell, tank body top is equipped with the coal charge mouth, coal charge mouth upper portion is equipped with sealed blind plate, tank body lower part is equipped with the fixed bolster, the arc head of the tank body left and right sides has the head of dismantling that removes the support for the lower part has, left side head is equipped with the intake pipe, right side head is equipped with the outlet duct, the intake pipe, be equipped with the pressure measurement mouth in the intake pipe, supplementary gasification agent input port, the accuse pressure valve is connected to the outlet duct, be equipped with the temperature probe locating support of location temperature probe in. The utility model discloses a setting up and removing can dismantle the head, the screen cloth filter of convenient dismantlement, the true condition in the deep coal seam of simulation is pressed close to the experimental data more.
Description
Technical Field
The utility model relates to a coal underground gasification experiment analogue means.
Background
The coal underground gasification has less influence on the environment, high safety and good development prospect. However, coal gasification is carried out in an unknown underground deep position, so that a plurality of unknown factors exist, and in order to reduce development risks, a simulation experiment device needs to be constructed on the ground to provide reliable experiment data for deep coal bed gasification work to be carried out. Such as: predicting the composition of the synthesis gas; and (4) analyzing the characteristics of the coal seam top and bottom plates after combustion and the like. The coal charging port of the currently used gasification simulation device is arranged above a furnace body shell, the size is small, the diameter is generally about 200mm, a large-size sample cannot be loaded or taken out when a character analysis experiment of a coal seam roof and floor is carried out after combustion, and the data deviation of the experiment of the small sample is large.
Disclosure of Invention
The utility model provides a coal underground gasification experiment analogue means removes through setting up and to dismantle the head, can pack into the morphological change of jumbo size sample simulation combustion space area top, bottom plate, makes the true condition in the deep coal seam that experimental data more pressed close to the simulation.
In order to realize the purpose, the technical scheme of the utility model is that:
the utility model provides a coal underground gasification experiment analogue means, includes the horizontal jar of body, and both ends set up the arc head about the horizontal jar of body, be equipped with cylindrical or rectangle gasifier cavity in the jar body, gasifier cavity sets gradually wear-resisting waterproof layer and fire-resistant insulating layer to between the shell of the tank body, jar body top is equipped with the coal charging mouth that link up with the gasifier cavity, coal charging mouth upper portion is equipped with sealed blind plate, jar body lower part is equipped with the fixed bolster, its characterized in that, the arc head of jar body left and right sides has the head of dismantling that removes the support for the lower part, wherein: the gasification furnace is characterized in that an air inlet pipe is arranged on the arc-shaped seal head on one side, an air outlet pipe is arranged on the arc-shaped seal head on the other side, the air inlet pipe and the air outlet pipe are communicated with the bottom of the gasification furnace cavity body, a pressure detection port and an auxiliary gasification agent input port are arranged on the air inlet pipe, the air outlet pipe is connected with a pressure control valve, a temperature measurement probe is arranged in the gasification furnace cavity body, and a lead of a temperature measurement.
The scheme is further as follows: the gasification furnace is characterized in that a temperature probe positioning support is arranged in the cavity of the gasification furnace and comprises a plurality of coaxial annular frames which are arranged at equal intervals, a transverse and vertical cross support is arranged in each annular frame, the temperature probes are multiple, and the temperature probes are arranged on different layers of the positioning support.
The scheme is further as follows: the air inlet pipe and the air outlet pipe are positioned on the same horizontal axis.
The scheme is further as follows: the diameter of the coal charging port is not less than 200 mm.
The scheme is further as follows: and the sealing blind plate is additionally provided with a fireproof heat-insulating layer and is connected with the coal charging port through a bolt.
The scheme is further as follows: and a detachable screen mesh filter plate is arranged between the arc-shaped end socket and the tank body.
The utility model discloses an useful part is: the utility model discloses a setting up and removing can dismantle the head, the screen cloth filter of convenient dismantlement can pack into the morphological change of jumbo size sample simulation goaf top, bottom plate, makes the true condition in the deep coal seam that experimental data more pressed close to the simulation.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the circular screen filter plate of the present invention.
Detailed Description
A coal underground gasification experiment simulation device is shown in figure 1 and comprises a horizontal tank body 2, wherein arc-shaped end sockets 1 and 3 are arranged at the left end and the right end of the horizontal tank body. A cylindrical or rectangular gasification furnace cavity 7 is arranged in the tank body. And a wear-resistant waterproof layer 8 and a fire-resistant heat-insulating layer 5 are sequentially arranged between the gasification furnace cavity 7 and the arc-shaped end enclosure shell and between the gasification furnace cavity and the tank shell 4. The top of the tank body is provided with a coal charging port 202 communicated with the gasification furnace cavity, and the diameter of the coal charging port 202 is not less than 200 mm. The upper part of the coal charging port 202 is provided with a sealing blind plate 203, and the sealing blind plate 203 is additionally provided with a fireproof heat insulation layer 5 and is connected with the coal charging port 202 through bolts. The lower part of the tank body is provided with a fixed bracket 205. The arc-shaped end sockets on the left side and the right side of the tank body are detachable end sockets with movable brackets 107 and 304. The head is connected with the tank body into a whole through a flange, and as shown in figure 1, the left head 1 is provided with an air inlet pipe 103. The right end enclosure 3 is provided with an air outlet pipe 302. The air inlet pipe 103 and the air outlet pipe 302 are communicated with the bottom side below the central axis of the gasification furnace cavity 7. The intake pipe serves as a burner inlet, and the intake pipe 103 is provided with a pressure detection port 104 and an auxiliary gasifying agent input port 106. The gas outlet pipe 302 is connected with a pressure control valve for controlling the pressure of the gasification gas in the gasification furnace cavity 7. The gasification furnace is characterized in that a temperature measuring probe is arranged in the gasification furnace cavity, a thermometer wire lead-out pipe 102 in the gasification furnace cavity 7 is arranged on the left end socket 1, the temperature measuring probe is connected with a thermometer wire and is led out from the thermometer wire lead-out pipe 102 on the arc-shaped end socket provided with the air inlet pipe, and the temperature measuring probe can also be led out from another arc-shaped end socket. A temperature measuring probe positioning bracket 10 is arranged in the gasification furnace cavity. The positioning support 10 comprises a plurality of coaxial annular frames which are arranged at equal intervals, transverse and vertical cross supports are arranged in the annular frames, the temperature measuring probes are multiple, and the temperature measuring probes are arranged on different layers of the positioning support.
Wherein: the air inlet pipe and the air outlet pipe are positioned on the same horizontal axis.
In the embodiment, changes of a coal seam roof and a coal seam floor after coal seam gasification are analyzed and researched by performing experiments on a solid sample. Installation preparation work of the device: the solid sample is processed by the high pressure of the press machine to form a solid sample which is matched with the gasification furnace cavity 7 in size and has a component structure similar to that of the underground coal bed, and a ventilation pipeline is reserved at the bottom of the solid sample so as to be communicated with the air inlet pipe 103 and the air outlet pipe 302. The movable support 107 at the lower part of the left seal head 1 is moved to move the left seal head 1 to the left side of the middle part 2 of the tank body, the left seal head 1 is provided with an air inlet pipe 103, and the air inlet pipe 103 is provided with a pressure detection port 104 and an auxiliary gasification agent input port 106. The left sealing head 1 is moved to the middle part 2 of the tank body, and the connecting flanges 101 and 201 of the left sealing head 1 and the middle part 2 of the tank body are connected by bolts. And (3) putting the solid sample into the experiment chamber 7, moving the movable support 304 at the lower part of the right seal head 3, moving the right seal head 3 to the right side of the middle part 2 of the tank body, then moving the right seal head 3 to the middle part 2 of the tank body, and connecting the right seal head 3 with the connecting flanges 301 and 204 of the middle part 2 of the tank body through bolts. The burner pipe 9 is then bolted to the connection flanges 901, 105 of the inlet pipe 103 and the gas outlet pipe 6 is bolted to the connection flanges 601, 303 of the outlet pipe 302. After the slurry is filled into the tank from the coal charging port 202 to fill the tank with no gap, the coal charging port 202 is sealed with a sealing blind plate 203. The experimental simulation device is provided with experimental conditions. In order to intercept the coal slurry and filter out redundant water in the coal slurry, a detachable screen filtering plate is arranged between the arc-shaped end enclosure and the tank body.
The utility model discloses a setting up and removing can dismantle the head, the screen cloth filter of convenient dismantlement can pack into the morphological change of jumbo size sample simulation goaf top, bottom plate, makes the true condition in the deep coal seam that experimental data more pressed close to the simulation.
The specific operation process of the embodiment is to fill the device with coal slurry, discharge water to solidify coal and then perform experiments, analyze and research various data of coal bed gasification, and provide accurate and reliable data for improving the scheme and process of coal bed gasification.
Installation preparation work of the device: first, a circular screen filter plate 11 is manufactured, as shown in fig. 2, the circular screen filter plate has a flange 1102 at the periphery and a screen 1101 at the inside. The flange 1102 of the circular screen filter plate 11 matches the connecting flange 204 of the tank middle 2. The movable support 107 at the lower part of the left seal head 1 is moved to move the left seal head 1 to the left side of the middle part 2 of the tank body, the left seal head 1 is provided with an air inlet pipe 103, and the air inlet pipe 103 is provided with a pressure detection port 104 and an auxiliary gasification agent input port 106. The left end enclosure 1 is provided with a thermometer wire outlet pipe 102, a cable on the outer side of the left end enclosure 1 is subjected to sealing treatment, and a thermometer wire channel is arranged inside the left end enclosure 1. The temperature probe is fixed on the temperature probe positioning bracket 10. The temperature measuring probe positioning support 10 comprises a plurality of coaxial annular frames which are arranged at equal intervals, and transverse and vertical cross supports are arranged in the annular frames. The temperature probe is connected with the temperature detector through a lead. And moving the moving bracket 107 at the lower part of the left seal head 1, moving the left seal head 1 to the right, and moving the annular fixed bracket 10 into the experiment chamber 7. An additional pipe arranged at the bottom of the experiment chamber 7 is connected with the air inlet pipe 103 and the air outlet pipe 302. The left end socket 1 and the connecting flanges 101 and 201 of the tank body 2 are connected by bolts. The flange 1102 of the circular screen 11 is bolted to the connecting flange 204 at the right end of the tank 2. According to the experimental requirement, coal slurry containing a binding agent is filled into the coal charging port 202, so that the coal slurry is filled into the whole tank body, and the coal charging port 202 is sealed by a sealing blind plate 203. Water from the slurry flows out of the circular mesh screen plate 1101. After the coal in the experiment chamber 7 is solidified, the circular screen filter plate 11 is removed, the moving bracket 304 at the lower part of the right seal head 3 is moved to the right side of the right seal head 3, the right seal head 3 is moved to the middle part 2 of the tank body, and the connecting flanges 301 and 204 of the right seal head 3 and the middle part 2 of the tank body are connected through bolts. Then, the gas input pipeline 9 is connected with the connecting flanges 901 and 105 of the gas inlet pipeline 103 through bolts, and the gas output pipeline 6 is connected with the connecting flanges 601 and 303 of the gas outlet pipeline 302 through bolts, so that the experimental simulation device has experimental conditions.
The utility model discloses an useful part is: the coal slurry is filled into the device, the moisture is discharged, the coal is solidified, and then the experiment is carried out, so that various data more similar to actual deep coal bed gasification are obtained, and reliable data support is provided for improving the coal bed gasification process.
Claims (6)
1. The utility model provides a coal underground gasification experiment analogue means, includes the horizontal jar of body, and both ends set up the arc head about the horizontal jar of body, are equipped with cylindrical or rectangle gasifier cavity in the jar body, gasifier cavity sets gradually wear-resisting waterproof layer and fire-resistant insulating layer to between the shell of the tank body, jar body top is equipped with the coal charging mouth that link up with the gasifier cavity, coal charging mouth upper portion is equipped with sealed blind plate, jar body lower part is equipped with the fixed bolster, its characterized in that, the arc head of jar body left and right sides has the head of dismantling that removes the support for the lower part, wherein: the gasification furnace is characterized in that an air inlet pipe is arranged on the arc-shaped seal head on one side, an air outlet pipe is arranged on the arc-shaped seal head on the other side, the air inlet pipe and the air outlet pipe are communicated with the bottom side of the gasification furnace cavity, a pressure detection port and an auxiliary gasification agent input port are arranged on the air inlet pipe, the air outlet pipe is connected with a pressure control valve, a temperature measuring probe is arranged in the gasification furnace cavity, and a lead of a temperature measurer.
2. The coal underground gasification experiment simulation device of claim 1, wherein a temperature probe positioning support is arranged in the gasification furnace cavity, the positioning support comprises a plurality of coaxial annular frames which are arranged at equal intervals, a transverse support and a vertical support are arranged in the annular frames, the temperature probes are arranged on different levels of the positioning support, and the temperature probes are arranged on different levels of the positioning support.
3. The coal underground gasification experiment simulation device of claim 1, wherein the gas inlet pipe and the gas outlet pipe are on the same horizontal axis.
4. An underground coal gasification experiment simulation device according to claim 1, wherein the diameter of the coal charging port is not less than 200 mm.
5. An underground coal gasification experiment simulation device according to claim 1, wherein a fire-resistant heat insulation layer is additionally arranged on the sealing blind plate and is connected with a coal charging port through a bolt.
6. An underground coal gasification experiment simulation apparatus as claimed in claim 1, wherein a detachable screen filter plate is arranged between the arc-shaped end socket and the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021776012.0U CN213116285U (en) | 2020-08-24 | 2020-08-24 | Coal underground gasification experiment simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021776012.0U CN213116285U (en) | 2020-08-24 | 2020-08-24 | Coal underground gasification experiment simulation device |
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| Publication Number | Publication Date |
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| CN213116285U true CN213116285U (en) | 2021-05-04 |
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| CN202021776012.0U Active CN213116285U (en) | 2020-08-24 | 2020-08-24 | Coal underground gasification experiment simulation device |
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| CN (1) | CN213116285U (en) |
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2020
- 2020-08-24 CN CN202021776012.0U patent/CN213116285U/en active Active
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