CN112127868B - Test device for simulating underground coal gasification and oil shale co-production and test method thereof - Google Patents
Test device for simulating underground coal gasification and oil shale co-production and test method thereof Download PDFInfo
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- CN112127868B CN112127868B CN202011031410.4A CN202011031410A CN112127868B CN 112127868 B CN112127868 B CN 112127868B CN 202011031410 A CN202011031410 A CN 202011031410A CN 112127868 B CN112127868 B CN 112127868B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/241—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection combined with solution mining of non-hydrocarbon minerals, e.g. solvent pyrolysis of oil shale
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
Simulation coal underground gasification and oil shale co-production test device, including the experiment cabinet, coal conveying system, coal gasification reaction system and oil shale reaction system, coal conveying system is fixed to be set up in one side of experiment cabinet, coal gasification reaction system sets up in the experiment cabinet, the fixed top that sets up the experiment cabinet of oil shale reaction system, coal conveying system's output sets up the top center top of experiment cabinet and is located oil shale reaction system's below, coal gasification reaction system passes through coal gasification gas outlet duct with oil shale reaction system and is connected. The method can simulate the gasification process of underground coal more truly, and introduce the high-temperature coal gasification gas generated by underground coal gasification into the oil shale reaction furnace, so as to simulate the reaction of oil shale in the high-temperature environment of the high-temperature coal gasification gas, realize the feasibility of underground coal gasification and oil shale co-production, and have important significance for researching the underground coal gasification and oil shale co-production technology.
Description
Technical Field
The invention relates to the technical field of underground coal gasification and oil shale exploitation, in particular to a test device and a test method for simulating coal underground gasification and oil shale co-exploitation.
Background
The underground coal gasification integrates well building, coal mining and gasification into a whole. The underground coal gasification is carried out in an underground gasification furnace, namely, coal in a gasification cave at one end of an air inlet hole of a gasification channel in a coal bed is ignited, and gasification agents (comprising air, oxygen and water vapor) are introduced through the air inlet hole to realize controlled combustion. If the oil shale is distributed on the upper layer of the coal, the joint mining of the adjacent coal and the oil shale can be completed by utilizing a large amount of released heat generated by underground coal gasification with half the effort. Therefore, the design of the test device for simulating the coal underground gasification and the oil shale co-production has important significance for guiding the research of the coal underground gasification and oil shale co-production technology.
Disclosure of Invention
The invention aims to provide a test device and a test method for simulating underground coal gasification and oil shale co-production, which can simulate the gasification process of underground coal more truly, introduce high-temperature coal gasification gas generated by underground coal gasification into an oil shale reaction furnace, simulate the reaction of oil shale in the high-temperature environment of the high-temperature coal gasification gas, realize the feasibility of underground coal gasification and oil shale co-production, and have important significance for researching the underground coal gasification and oil shale co-production technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
simulation coal underground gasification and oil shale co-production test device, including the experiment cabinet, coal conveying system, coal gasification reaction system and oil shale reaction system, coal conveying system is fixed to be set up in one side of experiment cabinet, coal gasification reaction system sets up in the experiment cabinet, the fixed top that sets up the experiment cabinet of oil shale reaction system, coal conveying system's output sets up the top center top of experiment cabinet and is located oil shale reaction system's below, coal gasification reaction system passes through coal gasification gas outlet duct with oil shale reaction system and is connected.
The experiment cabinet is the cuboid box, and the roof middle part of experiment cabinet is equipped with first rectangle opening, can dismantle fixedly connected with through the flange on the roof of experiment cabinet and be used for the first open-ended first case lid of sealed shutoff, and the bottom plate lower surface of experiment cabinet all is equipped with a fixed stay subaerial first supporting leg all around.
Coal transfer system is including supporting dull and stereotyped and conveyer belt, supports dull and stereotyped left side top of setting at the experiment cabinet along left right direction level, and the bottom of supporting the flat board is provided with a plurality of fixed supports subaerial second supporting legs, and the right side of supporting the flat board is located the center top of experiment cabinet, and conveyer belt conveyer is along controlling horizontal fixed mounting of direction on supporting the flat board, and conveyer belt conveyer's right side output aligns under with the right side edge of supporting the flat board.
The coal gasification reaction system comprises a gasification furnace and a coal briquette pressing device, the gasification furnace is a cuboid box body, the cross-sectional dimension of the gasification furnace is smaller than that of a first rectangular opening, a second rectangular opening is arranged in the middle of a top plate of the gasification furnace, a second box cover used for sealing and plugging the second rectangular opening is detachably and fixedly connected onto the top plate of the gasification furnace through a flange, the coal briquette pressing device is arranged in the gasification furnace, two transparent observation cylinders positioned in the gasification furnace are fixedly arranged on a bottom plate of the gasification furnace, the transparent observation cylinders are vertically arranged, two first electric push rods are fixedly arranged on a bottom plate of the gasification furnace, telescopic rods of the two first electric push rods are vertically arranged, the telescopic rods of the two first electric push rods respectively extend into the two transparent observation cylinders concentrically, high-temperature cameras are arranged at the tops of the telescopic rods of the two first electric push rods, and a gasification agent inlet pipe communicated with the interior of the gasification furnace is fixedly connected to the center of the bottom plate of the gasification furnace, a gasifying agent inlet pipe penetrates through the bottom plate of the experiment cabinet downwards and extends out of the experiment cabinet, a first pressure gauge is arranged on the gasifying agent inlet pipe, the lower end of a coal gasification gas outlet pipe is fixedly connected to the top plate of the gasification furnace, the coal gasification gas outlet pipe is communicated with the inside of the gasification furnace, the coal gasification gas outlet pipe penetrates through the top plate of the experiment cabinet upwards and extends out of the experiment cabinet, the upper end of the coal gasification gas outlet pipe is connected with the oil shale reaction system, the outer part of the coal gasification gas outlet pipe is wrapped with a heat preservation layer, a coal gasification gas collecting pipe which is positioned above the experiment cabinet is arranged on the coal gasification gas outlet pipe, a valve, a second pressure gauge and a coal gas purifier are arranged on the coal gasification gas collecting pipe along the gas flowing direction, the inlet end of the gasifying agent inlet pipe is connected with a gasifying agent supply device, the outlet end of the coal gasification gas collecting pipe is connected with a coal gasification gas collecting device, and water spray heads which spray water towards the inside the gasification furnace are arranged on the periphery of the top plate of the gasification furnace, the sprinkler bead all leads to pipe and is connected with outside water source, install the ignition who stretches into in the gasifier on the bottom plate of gasifier, a plurality of temperature sensor, a plurality of pressure sensor, a plurality of humidity transducer and a plurality of component testing arrangement, each temperature sensor sets up left by gasifier bottom plate center along the straight line in proper order, each pressure sensor sets up forward by gasifier bottom plate center in proper order along the straight line, each humidity sensor sets up backward by gasifier bottom plate center in proper order along the straight line, each component testing arrangement sets up right by gasifier bottom plate center in proper order along the straight line.
The coal briquette pressing device comprises four second electric push rods and a plurality of vertical press plates, the four second electric push rods are respectively and fixedly arranged in the middle of four side plates of the gasification furnace, telescopic rods of the four second electric push rods are all horizontally arranged, the telescopic rods of the four second electric push rods penetrate through the corresponding side plates of the gasification furnace and extend into the gasification furnace, the inner ends of the telescopic rods of the four second electric push rods are respectively and fixedly connected with a vertical push plate, each vertical press plate is arranged side by side and is encircled to form a rectangular fence, the rectangular fence is positioned in the middle of the four vertical push plates, connecting through holes parallel to the vertical push plates are respectively arranged on the side parts and the lower side parts of the vertical push plates, a telescopic connecting rod is respectively and penetratingly connected in the two connecting through holes, the adjacent side edges of the two adjacent vertical press plates are hinged through a pin shaft, the upper end and the lower end of the pin shaft positioned at four corners of the rectangle are respectively and fixedly connected on a top plate and a bottom plate of the gasification furnace, every vertical clamp plate is all fixed to be provided with the engaging lug seat towards both sides portion about the one side in the outside, the central through-hole has been seted up on the engaging lug seat, the central line of central through-hole is parallel with vertical clamp plate and sets up along the horizontal direction, left two telescopic link rods correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection left side respectively, two telescopic link rods on right side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection right side respectively, two telescopic link rods of front side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection front side respectively, two telescopic link rods of rear side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection rear side respectively.
The oil shale reaction system comprises an oil shale reaction furnace, a liquid product collecting box and a gaseous product collecting box, wherein the oil shale reaction furnace is a cuboid box body, a third rectangular opening is arranged in the middle of a top plate of the oil shale reaction furnace, a third box cover used for sealing and plugging the third rectangular opening is detachably and fixedly connected onto the top plate of the oil shale reaction furnace through a flange, suspenders are fixedly connected onto four side surfaces of the oil shale reaction furnace, the oil shale reaction furnace is fixedly hung on a laboratory roof through four suspenders, the oil shale reaction furnace is positioned above a gasification furnace, the upper end of a coal gasification gas outlet pipe is fixedly connected onto a bottom plate of the oil shale reaction furnace and communicated with the inside of the oil shale reaction furnace, a liquid product collecting pipe is fixedly connected onto the bottom plate of the oil shale reaction furnace, the outlet end of the liquid product collecting pipe is connected with the liquid product collecting box, and a third pressure gauge is arranged on the liquid product collecting pipe, a gaseous product discharge pipe is fixedly connected to a top plate of the oil shale reaction furnace, the outlet end of the gaseous product discharge pipe is connected with the gaseous product collection box, and a fourth pressure gauge is arranged on the gaseous product discharge pipe.
The test method for simulating the test device for coal underground gasification and oil shale combined mining specifically comprises the following steps:
(1) filling a coal sample into a gasification furnace, filling an oil shale sample into an oil shale reaction furnace, and then installing the whole test device;
(2) pressing the coal sample into a coal briquette to ensure that the coal briquette meets the size and the tightness required by the test;
(3) introducing gasifying agents (air, oxygen and water vapor) into the gasification furnace through a gasifying agent inlet pipe, starting an ignition device, igniting a coal briquette sample, enabling the coal briquette to be gasified and reacted in the gasification furnace, simultaneously spraying water into the gasification furnace through each water spray head, simulating the underground coal gasification process, observing the gasification process of the coal briquette in the gasification furnace through a high-temperature camera, and respectively monitoring the temperature, the pressure and the humidity of different parts in the gasification furnace and the components of the coal gasification gas in the gasification process of the coal briquette through each temperature sensor, each pressure sensor, each humidity sensor and each component testing device;
(4) and purifying one part of the coal gasification gas, collecting the purified coal gasification gas into a coal gasification gas collecting device, and introducing the other part of the coal gasification gas into an oil shale reaction furnace to react with an oil shale sample so as to simulate the exploitation of oil shale.
The step (1) is specifically as follows: initially, a first rectangular opening of an experimental cabinet and a second rectangular opening of a gasification furnace are both in an open state, according to the amount of a coal sample required by a test, the coal sample is conveyed into the gasification furnace through a conveyor belt conveyor, the amount of the coal sample can be well controlled by the conveyor belt conveyor, the coal sample falls from the right output end of the conveyor belt conveyor and falls into a space of a rectangular fence enclosed by four rows of vertical pressing plates in the gasification furnace, after the whole coal sample enters the gasification furnace, a second box cover is fixedly connected to a top plate of the gasification furnace in a flange connection mode, the second rectangular opening is sealed and blocked, then, sand is filled into a cavity between the experimental cabinet and the gasification furnace through the first rectangular opening to serve as a heat insulation material, the first box cover is fixedly connected to the top plate of the experimental cabinet in a flange connection mode, and the first rectangular opening is sealed and blocked, meanwhile, opening a third box cover, putting the oil shale sample into the oil shale reaction furnace through a third rectangular opening, fixedly connecting the third box cover to a top plate of the oil shale reaction furnace in a flange connection mode, and sealing and plugging the third rectangular opening, so that the whole test device is well installed;
the step (2) is specifically as follows: four second electric putter synchronous motion are controlled to control system through the laboratory, four vertical push pedal reciprocating motion are driven in step to four second electric putter's telescopic link, then every vertical push pedal just drives corresponding one row of vertical clamp plate reciprocating motion through corresponding two telescopic connecting rod respectively, so, four rows of vertical clamp plate reciprocating motion compress the coal sample simultaneously, compress the coal sample into the coal cinder, wherein, can be in advance according to experimental required coal cinder size and inseparable degree, adjust the length of telescopic connecting rod and each second electric putter's telescopic link distance of stretching out and drawing back.
The step (3) is specifically as follows: the gasification agent is introduced into the gasification furnace through a gasification agent inlet pipe, the pressure of the gasification agent is monitored according to a first pressure gauge, an ignition device is started to ignite coal briquettes, the coal briquettes are gasified and reacted in the gasification furnace, water is sprayed into the gasification furnace through each water spray head to simulate the underground coal gasification process, two first electric push rods are started, telescopic rods of the two first electric push rods respectively drive high-temperature cameras at the tops of the two electric push rods to move up and down in corresponding two transparent observation cylinders, the two high-temperature cameras pick up and transmit the gasification process of the coal briquettes in the gasification furnace to a control system of a laboratory, the gasification process of the coal briquettes in the gasification furnace can be displayed in real time through a display after the control system is processed, so that experimenters can observe the gasification process, and the temperatures, the humidity and the temperatures of different parts in the gasification furnace in the coal briquettes are respectively monitored by each temperature sensor, each pressure sensor, each humidity sensor and each component testing device, The pressure, the humidity and the components of the coal gasification gas are measured, and the measured temperature, the measured pressure, the measured humidity and the components of the coal gasification gas are transmitted to a control system of a laboratory, and are directly read and checked through a display after being processed; wherein, measure the admission pressure of gasification agent in the gasification agent intake pipe through first manometer, measure the pressure of giving vent to anger of coal gasification gas in the coal gasification gas outlet duct through the second manometer simultaneously, so, can control the gasification process of coal cinder in the gasifier and go on under the ordinary pressure condition or the pressurization condition through the entering pressure of control gasification agent alright.
The step (4) is specifically as follows: high-temperature coal gasification gas generated by the gasification reaction of the coal briquette in the gasification furnace is discharged from the gasification furnace through a coal gasification gas outlet pipe, at the moment, opening a valve to enable one part of high-temperature coal gasification gas to pass through a coal gasification gas collecting pipe and enter a coal gasification gas collecting device after being purified by a coal gas purifier, enabling the other part of high-temperature coal gasification gas to enter an oil shale reaction furnace through a coal gasification gas outlet pipe, closing the valve after the required coal gasification gas sample is collected, all high-temperature coal gasification gas discharged from the gasification furnace enters the oil shale reaction furnace through the coal gasification gas outlet pipe, an oil shale sample reacts in the environment of the high-temperature coal gasification gas to generate liquid products and gaseous products, the liquid products enter the liquid product collecting box through the liquid product collecting pipe, and the gaseous product enters the gaseous product collecting box through the gaseous product discharge pipe, oil shale is simulated, and finally the liquid product and the gaseous product are analyzed.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following advantages:
1. the method simulates the underground coal gasification process and the process that the heat generated by the underground coal gasification is transmitted to the position close to the oil shale layer to realize the oil shale co-production; the method can simulate and collect products of different layers (including a coal gasification layer and an oil shale reaction layer), and can develop a comparison test of coal gasification products and influences on oil shale exploitation under different conditions when parameters such as pressure of a gasification agent, water amount sprayed into a gasification furnace, mechanical properties of coal blocks and the like are controlled.
2. The test device for simulating underground coal gasification and oil shale combined mining can compress coal samples in the gasification furnace to form coal blocks by controlling four second electric push rods to drive four rows of vertical press plates to move simultaneously, and can simulate the shape of an underground coal seam; the length of each telescopic connecting rod and the telescopic distance of the telescopic rods of the four second electric push rods can be adjusted according to the size of the required coal blocks and the tightness of the coal blocks, so that the mechanical property of the underground coal bed is simulated; in the gasification process, four water spray heads arranged on the top plate of the gasification furnace can spray water into the gasification furnace to simulate the underground hydrological condition, so that the gasification process of underground coal is simulated more truly.
3. The gasification furnace is characterized in that all temperature sensors, all pressure sensors, all humidity sensors and all component testing devices are circumferentially distributed on the bottom plate of the gasification furnace, so that the temperature, pressure, humidity and component of different parts in the gasification furnace can be measured in the gasification process of coal briquettes; fixed mounting has two inside transparent observation section of thick bamboos that are located the gasifier on the gasifier bottom plate, fixed mounting has two first electric putter that are located corresponding transparent observation section of thick bamboos on the bottom plate of gasifier, two first electric putter's telescopic link top all is provided with the high temperature camera, the high temperature camera is under first electric putter's effect, can realize the observation to whole gasification, in addition, can measure the inlet pressure of gasification agent in the gasification agent intake pipe through first manometer, measure the pressure of giving vent to anger of coal gasification gas in the coal gasification gas outlet duct through the second manometer.
In conclusion, the method can simulate the gasification process of underground coal more truly, introduce high-temperature coal gasification gas generated by underground coal gasification into the oil shale reaction furnace, simulate the reaction of oil shale in the high-temperature environment of the high-temperature coal gasification gas, realize the feasibility of coal underground gasification and oil shale co-production, and has important significance for researching the technology of coal underground gasification and oil shale co-production.
Drawings
Fig. 1 is a schematic diagram of the operation of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a first perspective view of a gasification furnace of the coal gasification reaction system of the present invention.
Fig. 4 is a second perspective view of a gasification furnace of the coal gasification reaction system of the present invention.
FIG. 5 is a schematic view of the structure of the inside of the gasification furnace of the present invention.
Fig. 6 is a schematic structural view of a coal briquette pressing apparatus of the present invention.
Figure 7 is a schematic view of the structure of the vertical push plate of the present invention.
FIG. 8 is a schematic diagram of the construction of the vertical platen of the present invention.
Fig. 9 is a schematic structural diagram of an oil shale reaction system of the present invention.
Detailed Description
The embodiments of the present invention are further described below with reference to the drawings.
As shown in fig. 1-9, a simulation coal underground gasification and oil shale commingled production test device, including laboratory cabinet 1, coal conveying system, coal gasification reaction system and oil shale reaction system, coal conveying system is fixed to be set up in one side of laboratory cabinet 1, coal gasification reaction system sets up in laboratory cabinet 1, the fixed top that sets up laboratory cabinet 1 of oil shale reaction system, coal conveying system's output sets up the top center top of laboratory cabinet 1 and is located oil shale reaction system's below, coal gasification reaction system passes through coal gasification gas outlet pipe 2 with oil shale reaction system and is connected.
Experiment cabinet 1 is the cuboid box, and the roof middle part of experiment cabinet 1 is equipped with first rectangle opening, can dismantle fixedly connected with through the flange on the roof of experiment cabinet 1 and be used for the first open-ended first case lid 3 of sealed shutoff, and the bottom plate lower surface of experiment cabinet 1 all is equipped with a fixed stay subaerial first supporting leg 4 all around.
Coal transfer system is including supporting dull and stereotyped 5 and conveyer belt conveyor 6, support dull and stereotyped 5 along the left side top of controlling the direction level setting at experiment cabinet 1, the bottom of supporting dull and stereotyped 5 is provided with a plurality of fixed supports subaerial second supporting legs 7, the right side limit of supporting dull and stereotyped 5 is located experiment cabinet 1's central top, conveyer belt conveyor 6 is along controlling the horizontal fixed mounting of direction level on supporting dull and stereotyped 5, conveyer belt conveyor 6's right side output aligns under with the right side edge of supporting dull and stereotyped 5.
The coal gasification reaction system comprises a gasification furnace 8 and a coal briquette pressing device, the gasification furnace 8 is a cuboid box body, the section size of the gasification furnace 8 is smaller than that of a first rectangular opening, a second rectangular opening is arranged in the middle of a top plate of the gasification furnace 8, a second box cover 9 for sealing and plugging the second rectangular opening is detachably and fixedly connected to the top plate of the gasification furnace 8 through a flange, the coal briquette pressing device is arranged in the gasification furnace 8, two transparent observation cylinders 10 positioned in the gasification furnace 8 are fixedly arranged on a bottom plate of the gasification furnace 8, the transparent observation cylinders 10 are vertically arranged, two first electric push rods 11 are fixedly arranged on the bottom plate of the gasification furnace 8, telescopic rods of the two first electric push rods 11 are vertically arranged, the telescopic rods of the two first electric push rods 11 respectively extend into the two transparent observation cylinders 10 in the same center, and high-temperature cameras 12 are arranged at the tops of the two first electric push rods 11, a gasifying agent inlet pipe 13 communicated with the inside of the gasification furnace 8 is fixedly connected to the center of the bottom plate of the gasification furnace 8, the gasifying agent inlet pipe 13 penetrates through the bottom plate of the experiment cabinet 1 downwards and extends out of the experiment cabinet 1, a first pressure gauge 14 is arranged on the gasifying agent inlet pipe 13, the lower end of a coal gasification gas outlet pipe 2 is fixedly connected to the top plate of the gasification furnace 8, the coal gasification gas outlet pipe 2 is communicated with the inside of the gasification furnace 8, the coal gasification gas outlet pipe 2 penetrates through the top plate of the experiment cabinet 1 upwards and extends out of the experiment cabinet 1, the upper end of the coal gasification gas outlet pipe 2 is connected with an oil shale reaction system, a heat insulation layer (for preventing the temperature of coal gasification) is wrapped outside the coal gasification gas outlet pipe 2, a coal gasification gas collecting pipe 15 positioned above the experiment cabinet 1 is arranged on the coal gasification gas outlet pipe 2, a valve 16, a second pressure gauge 17 and a coal gas purifier 18 are arranged on the coal gasification gas collecting pipe 15 along the gas flowing direction, the inlet end of the gasifying agent inlet pipe 13 is connected with a gasifying agent supply device, the outlet end of the gasifying gas collecting pipe 15 is connected with a gasifying gas collecting device, the periphery of the top plate of the gasification furnace 8 is provided with a water spraying head 42 which sprays water towards the inside of the gasification furnace 8, the water spraying heads 42 are connected with an external water source through water pipes, the bottom plate of the gasification furnace 8 is provided with an ignition device 19 which extends into the gasification furnace 8 and a plurality of temperature sensors 20, a plurality of pressure sensor 21, a plurality of humidity transducer 22 and a plurality of component testing arrangement 23, each temperature sensor 20 sets up left by 8 bottom plate centers of gasifier in proper order along the straight line, and each pressure sensor 21 sets up forward by 8 bottom plate centers of gasifier in proper order along the straight line, and each humidity transducer 22 sets up backward by 8 bottom plate centers of gasifier in proper order along the straight line, and each component testing arrangement 23 sets up right by 8 bottom plate centers of gasifier in proper order along the straight line. The gasifying agent supply device, the coal gasification gas collecting device and the external water source are all conventional devices required by the test.
The coal briquette pressing device comprises four second electric push rods 24 and a plurality of vertical press plates 25, wherein the four second electric push rods 24 are respectively and fixedly arranged in the middle of four side plates of the gasification furnace 8, telescopic rods of the four second electric push rods 24 are all horizontally arranged, the telescopic rods of the four second electric push rods 24 penetrate through the corresponding side plates of the gasification furnace 8 and extend into the gasification furnace 8, the inner ends of the telescopic rods of the four second electric push rods 24 are respectively and fixedly connected with a vertical push plate 26, each vertical press plate 25 is arranged side by side and surrounds into a rectangular fence, the rectangular fence is positioned in the middle of the four vertical push plates 26, the side parts and the lower side parts of the vertical push plates 26 are respectively provided with a connecting through hole 27 parallel to the vertical push plates 26, two connecting through holes 27 are respectively and penetratingly connected with a telescopic connecting rod 28, and the adjacent sides of two adjacent vertical press plates 25 are hinged through a pin shaft 29, the upper end and the lower end of a pin shaft 29 positioned at four corners of the rectangle are respectively fixedly connected to a top plate and a bottom plate of the gasification furnace 8, the upper side and the lower side of one side of each vertical pressing plate 25 facing to the outside are respectively and fixedly provided with a connecting lug seat 30, a central through hole 31 is formed in each connecting lug seat 30, the central line of the central through hole 31 is parallel to the vertical pressing plate 25 and is arranged along the horizontal direction, the two left telescopic connecting rods 28 respectively correspond to each connecting lug seat 30 on the upper side and each connecting lug seat 30 on the lower side of one row of vertical pressing plates 25 on the left side in a penetrating connection mode, the two right telescopic connecting rods 28 respectively correspond to each connecting lug seat 30 on the upper side and each connecting lug seat 30 on the lower side of one row of vertical pressing plates 25 on the right side in a penetrating connection mode, the two rear telescopic connecting rods 28 respectively correspond to each connecting lug seat 30 on the upper side and each connecting lug seat 30 on the lower side An ear mount 30 and a lower respective attachment ear mount 30.
The oil shale reaction system comprises an oil shale reaction furnace 32, a liquid product collecting box 33 and a liquid product collecting box 34, the oil shale reaction furnace 32 is a cuboid box body, a third rectangular opening is arranged in the middle of a top plate of the oil shale reaction furnace 32, a third box cover 35 for sealing and blocking the third rectangular opening is detachably and fixedly connected to the top plate of the oil shale reaction furnace 32 through a flange, suspenders 36 are fixedly connected to four side surfaces of the oil shale reaction furnace 32, the oil shale reaction furnace 32 is fixedly hung on a laboratory roof 41 through four suspenders 36, the oil shale reaction furnace 32 is positioned above a gasification furnace 8, the upper end of a coal gasification gas outlet pipe 2 is fixedly connected to a bottom plate of the oil shale reaction furnace 32 and communicated with the inside of the oil shale reaction furnace 32, a liquid product collecting pipe 37 is fixedly connected to the bottom plate of the oil shale reaction furnace 32, and the outlet end of the liquid product collecting pipe 37 is connected with the liquid product collecting box 33, the liquid product collecting pipe 37 is provided with a third pressure gauge 38, the top plate of the oil shale reaction furnace 32 is fixedly connected with a gaseous product discharging pipe 39, the outlet end of the gaseous product discharging pipe 39 is connected with the gaseous product collecting box 34, and the gaseous product discharging pipe 39 is provided with a fourth pressure gauge 40.
The conveyor belt conveyor 6, the first electric push rod 11, the high-temperature camera 12, the ignition device 19, the temperature sensor 20, the pressure sensor 21, the humidity sensor 22, the component testing device 23 and the second electric push rod 24 are all conventional devices, and specific construction and working principle are not described in detail.
The test method for simulating the test device for coal underground gasification and oil shale combined mining specifically comprises the following steps:
(1) filling a coal sample into the gasification furnace 8, filling an oil shale sample into the oil shale reaction furnace 32, and then installing the whole test device;
(2) pressing the coal sample into a coal briquette to ensure that the coal briquette meets the size and the tightness required by the test;
(3) introducing gasifying agents (air, oxygen and water vapor) into the gasification furnace 8 through a gasifying agent inlet pipe 13, starting an ignition device 19, igniting a coal briquette sample, enabling the coal briquette to be subjected to gasification reaction in the gasification furnace 8, simultaneously spraying water into the gasification furnace 8 through each water spray head 42, simulating the underground coal gasification process, observing the gasification process of the coal briquette in the gasification furnace 8 through a high-temperature camera 12, and respectively monitoring the temperature, the pressure and the humidity of different parts in the gasification furnace 8 and the components of the coal gasification gas in the coal briquette gasification process through each temperature sensor 20, each pressure sensor 21, each humidity sensor 22 and each component testing device 23;
(4) and purifying one part of the coal gasification gas and then collecting the purified coal gasification gas into a coal gasification gas collecting device, and introducing the other part of the coal gasification gas into an oil shale reaction furnace 32 to react with an oil shale sample so as to simulate the exploitation of oil shale.
The step (1) is specifically as follows: initially, a first rectangular opening of the experiment cabinet 1 and a second rectangular opening of the gasification furnace 8 are both in an open state, according to the amount of coal samples required by the experiment, the coal samples are conveyed into the gasification furnace 8 through the conveyor belt conveyor 6, the amount of the coal samples can be well controlled by using the conveyor belt conveyor 6, the coal samples fall from the right output end of the conveyor belt conveyor 6 and fall into the space of a rectangular fence surrounded by four rows of vertical pressing plates 25 in the gasification furnace 8, after all the coal samples enter the gasification furnace 8, a second box cover 9 is fixedly connected to the top plate of the gasification furnace 8 in a flange connection mode, the second rectangular opening is sealed and blocked, then sand is filled into a cavity between the experiment cabinet 1 and the gasification furnace 8 through the first rectangular opening to serve as a heat insulation material, and the first box cover 3 is fixedly connected to the top plate of the experiment cabinet 1 in a flange connection mode, sealing and plugging the first rectangular opening, simultaneously opening the third box cover 35, putting the oil shale sample into the oil shale reaction furnace 32 through the third rectangular opening, fixedly connecting the third box cover 35 to the top plate of the oil shale reaction furnace 32 in a flange connection manner, and sealing and plugging the third rectangular opening, so that the whole test device is installed;
the step (2) is specifically as follows: four second electric putter 24 synchronous motion are controlled to control system through the laboratory, four vertical push pedal 26 reciprocating motion are driven in step to four second electric putter's 24 telescopic links, then every vertical push pedal 26 just drives corresponding one row of vertical clamp plate 25 reciprocating motion through corresponding two telescopic link 28 respectively, so, four rows of vertical clamp plate 25 reciprocating motion compress the coal sample simultaneously, press the coal sample into the coal cinder, wherein, can be according to experimental required coal cinder size and inseparable degree in advance, adjust the length of telescopic link 28 and the flexible distance of each second electric putter's 24 telescopic link.
The step (3) is specifically as follows: gasifying agents are introduced into the gasification furnace 8 through a gasifying agent inlet pipe 13, the pressure of the gasifying agents is monitored according to a first pressure gauge 14, an ignition device 19 is started to ignite coal briquettes, the coal briquettes are gasified and reacted in the gasification furnace 8, water is sprayed into the gasification furnace 8 through each water spray head 42 at the same time, the underground coal gasification process is simulated, two first electric push rods 11 are started, telescopic rods of the two first electric push rods 11 respectively drive high-temperature cameras 12 at the tops of the two first electric push rods to move up and down in corresponding two transparent observation cylinders, the gasification process of the coal briquettes in the gasification furnace 8 is shot and transmitted to a control system of a laboratory through the two high-temperature cameras 12, the gasification process of the coal briquettes in the gasification furnace 8 can be displayed in real time through a display after the control system is processed, so that an experimenter can observe the gasification process, and the temperature sensors 20, the pressure sensors 21, the humidity sensors 22 and the component testing devices 23 respectively monitor the temperature of different parts in the gasification process of the coal briquettes in the gasification furnace 8, The pressure, the humidity and the components of the coal gasification gas are measured, and the measured temperature, the measured pressure, the measured humidity and the components of the coal gasification gas are transmitted to a control system of a laboratory, and are directly read and checked through a display after being processed; wherein, the first pressure gauge 14 is used for measuring the gas inlet pressure of the gasifying agent in the gasifying agent inlet pipe 13, and the second pressure gauge 17 is used for measuring the gas outlet pressure of the coal gasification gas in the coal gasification gas outlet pipe 2, so that the gasification process of the coal briquette in the gasification furnace 8 can be controlled to be carried out under the normal pressure condition or the pressurization condition by controlling the inlet pressure of the gasifying agent.
The step (4) is specifically as follows: high-temperature coal gasification gas generated by gasification reaction of coal briquettes in the gasification furnace 8 is discharged from the gasification furnace 8 through a coal gasification gas outlet pipe 2, at the moment, a valve 16 is opened, a part of the high-temperature coal gasification gas passes through a coal gasification gas collecting pipe 15 and is purified by a coal purifier 18 and then enters a coal gasification gas collecting device, the other part of the high-temperature coal gasification gas enters an oil shale reaction furnace 32 through a coal gasification gas outlet pipe 2, after a required coal gasification gas sample is collected, the valve 16 is closed, all the high-temperature coal gasification gas discharged from the gasification furnace 8 enters the oil shale reaction furnace 32 through the coal gasification gas outlet pipe 2, the oil shale sample reacts under the environment of the high-temperature coal gasification gas to generate liquid products and gaseous products, the liquid products enter a liquid product collecting box 33 through a liquid product collecting pipe 37, and the gaseous products enter a gaseous product collecting box 34 through a gaseous product discharge pipe 39, oil shale is simulated and finally, the liquid and gaseous products are analyzed.
The invention has the following advantages:
1. the method simulates the underground coal gasification process and the process that the heat generated by the underground coal gasification is transmitted to the position close to the oil shale layer to realize the oil shale co-production; the method can simulate and collect products of different layers (including a coal gasification layer and an oil shale reaction layer), and can carry out a comparison test on the coal gasification products and the influence on oil shale exploitation under different conditions when parameters such as pressure of a gasification agent, water amount sprayed into the gasification furnace 8, mechanical property of coal blocks and the like are controlled.
2. According to the test device for simulating underground coal gasification and oil shale combined mining, the four rows of vertical pressing plates 25 can be driven by controlling the four second electric push rods 24 to move simultaneously to compress coal samples in the gasification furnace 8 to form coal blocks, and the shape of an underground coal bed is simulated; the length of each telescopic connecting rod 28 and the telescopic distance of the telescopic rods of the four second electric push rods 24 can be adjusted according to the size of the required coal blocks and the tightness of the coal blocks, so that the mechanical property of the underground coal bed is simulated; in the gasification process, the four water spray heads 42 arranged on the top plate of the gasification furnace 8 can spray water into the gasification furnace 8 to simulate the underground hydrological condition, so that the gasification process of underground coal is simulated more truly.
3. The temperature sensors 20, the pressure sensors 21, the humidity sensors 22 and the component testing devices 23 are circumferentially distributed on the bottom plate of the gasification furnace 8, so that the temperature, the pressure, the humidity and the components at different positions in the gasification furnace 8 in the coal gasification process can be measured; fixed mounting has two inside transparent observation section of thick bamboos 10 that are located gasifier 8 on 8 bottom plates of gasifier, fixed mounting has two first electric putter 11 that are located corresponding transparent observation section of thick bamboos 10 on 8 bottom plates of gasifier, two first electric putter 11's telescopic link tops all are provided with high temperature camera 12, high temperature camera 12 is under first electric putter 11's effect, can realize the observation to whole gasification, in addition, can measure the inlet pressure of gasification agent in gasification agent intake pipe 13 through first manometer 14, measure the outlet pressure of coal gasification gas in coal gasification gas outlet duct 2 through second manometer 17.
The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (6)
1. Simulation coal underground gasification and oil shale commingled production test device, its characterized in that: the coal gasification reaction system is fixedly arranged on one side of the experiment cabinet, the coal gasification reaction system is arranged in the experiment cabinet, the oil shale reaction system is fixedly arranged above the experiment cabinet, the output end of the coal transmission system is arranged above the top center of the experiment cabinet and below the oil shale reaction system, and the coal gasification reaction system is connected with the oil shale reaction system through a coal gasification gas outlet pipe;
the experiment cabinet is a cuboid box body, a first rectangular opening is formed in the middle of a top plate of the experiment cabinet, a first box cover used for sealing and plugging the first rectangular opening is detachably and fixedly connected onto the top plate of the experiment cabinet through a flange, and a first supporting leg fixedly supported on the ground is arranged on the periphery of the lower surface of a bottom plate of the experiment cabinet;
the coal conveying system comprises a supporting flat plate and a conveyor belt conveyor, the supporting flat plate is horizontally arranged above the left side of the experiment cabinet along the left-right direction, a plurality of second supporting legs fixedly supported on the ground are arranged at the bottom of the supporting flat plate, the right side edge of the supporting flat plate is positioned above the center of the experiment cabinet, the conveyor belt conveyor is horizontally and fixedly arranged on the supporting flat plate along the left-right direction, and the right output end of the conveyor belt conveyor is aligned with the right side edge of the supporting flat plate;
the coal gasification reaction system comprises a gasification furnace and a coal briquette pressing device, the gasification furnace is a cuboid box body, the cross-sectional dimension of the gasification furnace is smaller than that of a first rectangular opening, a second rectangular opening is arranged in the middle of a top plate of the gasification furnace, a second box cover used for sealing and plugging the second rectangular opening is detachably and fixedly connected onto the top plate of the gasification furnace through a flange, the coal briquette pressing device is arranged in the gasification furnace, two transparent observation cylinders positioned in the gasification furnace are fixedly arranged on a bottom plate of the gasification furnace, the transparent observation cylinders are vertically arranged, two first electric push rods are fixedly arranged on a bottom plate of the gasification furnace, telescopic rods of the two first electric push rods are vertically arranged, the telescopic rods of the two first electric push rods respectively extend into the two transparent observation cylinders concentrically, high-temperature cameras are arranged at the tops of the telescopic rods of the two first electric push rods, and a gasification agent inlet pipe communicated with the interior of the gasification furnace is fixedly connected to the center of the bottom plate of the gasification furnace, a gasifying agent inlet pipe penetrates through the bottom plate of the experiment cabinet downwards and extends out of the experiment cabinet, a first pressure gauge is arranged on the gasifying agent inlet pipe, the lower end of a coal gasification gas outlet pipe is fixedly connected to the top plate of the gasification furnace, the coal gasification gas outlet pipe is communicated with the inside of the gasification furnace, the coal gasification gas outlet pipe penetrates through the top plate of the experiment cabinet upwards and extends out of the experiment cabinet, the upper end of the coal gasification gas outlet pipe is connected with the oil shale reaction system, the outer part of the coal gasification gas outlet pipe is wrapped with a heat preservation layer, a coal gasification gas collecting pipe which is positioned above the experiment cabinet is arranged on the coal gasification gas outlet pipe, a valve, a second pressure gauge and a coal gas purifier are arranged on the coal gasification gas collecting pipe along the gas flowing direction, the inlet end of the gasifying agent inlet pipe is connected with a gasifying agent supply device, the outlet end of the coal gasification gas collecting pipe is connected with a coal gasification gas collecting device, and water spray heads which spray water towards the inside the gasification furnace are arranged on the periphery of the top plate of the gasification furnace, the water spray heads are all connected with an external water source through water pipes, an ignition device, a plurality of temperature sensors, a plurality of pressure sensors, a plurality of humidity sensors and a plurality of component testing devices which extend into the gasification furnace are installed on a bottom plate of the gasification furnace, each temperature sensor is sequentially arranged leftwards from the center of the bottom plate of the gasification furnace along a straight line, each pressure sensor is sequentially arranged forwards from the center of the bottom plate of the gasification furnace along a straight line, each humidity sensor is sequentially arranged backwards from the center of the bottom plate of the gasification furnace along a straight line, and each component testing device is sequentially arranged rightwards from the center of the bottom plate of;
the coal briquette pressing device comprises four second electric push rods and a plurality of vertical press plates, the four second electric push rods are respectively and fixedly arranged in the middle of four side plates of the gasification furnace, telescopic rods of the four second electric push rods are all horizontally arranged, the telescopic rods of the four second electric push rods penetrate through the corresponding side plates of the gasification furnace and extend into the gasification furnace, the inner ends of the telescopic rods of the four second electric push rods are respectively and fixedly connected with a vertical push plate, each vertical press plate is arranged side by side and is encircled to form a rectangular fence, the rectangular fence is positioned in the middle of the four vertical push plates, connecting through holes parallel to the vertical push plates are respectively arranged on the side parts and the lower side parts of the vertical push plates, a telescopic connecting rod is respectively and penetratingly connected in the two connecting through holes, the adjacent side edges of the two adjacent vertical press plates are hinged through a pin shaft, the upper end and the lower, every vertical clamp plate is all fixed to be provided with the engaging lug seat towards both sides portion about the one side in the outside, the central through-hole has been seted up on the engaging lug seat, the central line of central through-hole is parallel with vertical clamp plate and sets up along the horizontal direction, left two telescopic link rods correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection left side respectively, two telescopic link rods on right side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection right side respectively, two telescopic link rods of front side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection front side respectively, two telescopic link rods of rear side correspond each engaging lug seat of upside and each engaging lug seat of downside of one row of vertical clamp plate in through connection rear side respectively.
2. The test device for simulating coal underground gasification and oil shale co-production according to claim 1, characterized in that: the oil shale reaction system comprises an oil shale reaction furnace, a liquid product collecting box and a gaseous product collecting box, wherein the oil shale reaction furnace is a cuboid box body, a third rectangular opening is arranged in the middle of a top plate of the oil shale reaction furnace, a third box cover used for sealing and plugging the third rectangular opening is detachably and fixedly connected onto the top plate of the oil shale reaction furnace through a flange, suspenders are fixedly connected onto four side surfaces of the oil shale reaction furnace, the oil shale reaction furnace is fixedly hung on a laboratory roof through four suspenders, the oil shale reaction furnace is positioned above a gasification furnace, the upper end of a coal gasification gas outlet pipe is fixedly connected onto a bottom plate of the oil shale reaction furnace and communicated with the inside of the oil shale reaction furnace, a liquid product collecting pipe is fixedly connected onto the bottom plate of the oil shale reaction furnace, the outlet end of the liquid product collecting pipe is connected with the liquid product collecting box, and a third pressure gauge is arranged on the liquid product collecting pipe, a gaseous product discharge pipe is fixedly connected to a top plate of the oil shale reaction furnace, the outlet end of the gaseous product discharge pipe is connected with the gaseous product collection box, and a fourth pressure gauge is arranged on the gaseous product discharge pipe.
3. The test method for simulating the test device for coal underground gasification and oil shale co-production according to claim 2, wherein the test method comprises the following steps: the method specifically comprises the following steps:
(1) filling a coal sample into a gasification furnace, filling an oil shale sample into an oil shale reaction furnace, and then installing the whole test device;
(2) pressing the coal sample into a coal briquette to ensure that the coal briquette meets the size and the tightness required by the test;
(3) introducing gasifying agents (air, oxygen and water vapor) into the gasification furnace through a gasifying agent inlet pipe, starting an ignition device, igniting a coal briquette sample, enabling the coal briquette to be gasified and reacted in the gasification furnace, simultaneously spraying water into the gasification furnace through each water spray head, simulating the underground coal gasification process, observing the gasification process of the coal briquette in the gasification furnace through a high-temperature camera, and respectively monitoring the temperature, the pressure and the humidity of different parts in the gasification furnace and the components of the coal gasification gas in the gasification process of the coal briquette through each temperature sensor, each pressure sensor, each humidity sensor and each component testing device;
(4) and purifying one part of the coal gasification gas, collecting the purified coal gasification gas into a coal gasification gas collecting device, and introducing the other part of the coal gasification gas into an oil shale reaction furnace to react with an oil shale sample so as to simulate the exploitation of oil shale.
4. The test method for simulating the test device for coal underground gasification and oil shale co-production according to claim 3, wherein the test method comprises the following steps: the step (1) is specifically as follows: initially, a first rectangular opening of an experimental cabinet and a second rectangular opening of a gasification furnace are both in an open state, according to the amount of a coal sample required by a test, the coal sample is conveyed into the gasification furnace through a conveyor belt conveyor, the amount of the coal sample can be well controlled by the conveyor belt conveyor, the coal sample falls from the right output end of the conveyor belt conveyor and falls into a space of a rectangular fence enclosed by four rows of vertical pressing plates in the gasification furnace, after the whole coal sample enters the gasification furnace, a second box cover is fixedly connected to a top plate of the gasification furnace in a flange connection mode, the second rectangular opening is sealed and blocked, then, sand is filled into a cavity between the experimental cabinet and the gasification furnace through the first rectangular opening to serve as a heat insulation material, the first box cover is fixedly connected to the top plate of the experimental cabinet in a flange connection mode, and the first rectangular opening is sealed and blocked, meanwhile, opening a third box cover, putting the oil shale sample into the oil shale reaction furnace through a third rectangular opening, fixedly connecting the third box cover to a top plate of the oil shale reaction furnace in a flange connection mode, and sealing and plugging the third rectangular opening, so that the whole test device is well installed;
the step (2) is specifically as follows: four second electric putter synchronous motion are controlled through the control system in laboratory, four vertical push pedal reciprocating motion are driven in step to four second electric putter's telescopic link, then every vertical push pedal just drives corresponding one row of vertical clamp plate reciprocating motion through corresponding two telescopic connecting rod respectively, so, four rows of vertical clamp plate reciprocating motion compress the coal sample simultaneously, compress the coal sample into the coal cinder, wherein, according to experimental required coal cinder size and inseparable degree in advance, adjust the length of telescopic connecting rod and each second electric putter's telescopic link distance of stretching out and drawing back.
5. The test method for simulating the test device for coal underground gasification and oil shale co-production according to claim 4, wherein the test method comprises the following steps: the step (3) is specifically as follows: the gasification agent is introduced into the gasification furnace through a gasification agent inlet pipe, the pressure of the gasification agent is monitored according to a first pressure gauge, an ignition device is started to ignite coal briquettes, the coal briquettes are gasified and reacted in the gasification furnace, water is sprayed into the gasification furnace through water spray heads to simulate the underground coal gasification process, two first electric push rods are started, telescopic rods of the two first electric push rods respectively drive high-temperature cameras at the tops of the two electric push rods to move up and down in corresponding two transparent observation cylinders, the two high-temperature cameras pick up and transmit the gasification process of the coal briquettes in the gasification furnace to a control system of a laboratory, the gasification process of the coal briquettes in the gasification furnace is displayed in real time through a display after the control system is processed so as to be observed by an experimenter, and the temperature sensors, the pressure sensors, the humidity sensors and the component testing devices respectively monitor the temperature, the humidity and the pressure of different parts in the gasification furnace in the coal briquettes gasification process, The pressure, the humidity and the components of the coal gasification gas are measured, and the measured temperature, the measured pressure, the measured humidity and the components of the coal gasification gas are transmitted to a control system of a laboratory, and are directly read and checked through a display after being processed; wherein, measure the admission pressure of gasification agent in the gasification agent intake pipe through first manometer, measure the pressure of giving vent to anger of coal gasification gas in the coal gasification gas outlet duct through the second manometer simultaneously, so, just control the gasification process of coal cinder in the gasifier and go on under the ordinary pressure condition or the pressurization condition through the entering pressure of control gasification agent.
6. The test method for simulating the test device for coal underground gasification and oil shale co-production according to claim 5, wherein the test method comprises the following steps: the step (4) is specifically as follows: high-temperature coal gasification gas generated by the gasification reaction of the coal briquette in the gasification furnace is discharged from the gasification furnace through a coal gasification gas outlet pipe, at the moment, opening a valve to enable one part of high-temperature coal gasification gas to pass through a coal gasification gas collecting pipe and enter a coal gasification gas collecting device after being purified by a coal gas purifier, enabling the other part of high-temperature coal gasification gas to enter an oil shale reaction furnace through a coal gasification gas outlet pipe, closing the valve after the required coal gasification gas sample is collected, all high-temperature coal gasification gas discharged from the gasification furnace enters the oil shale reaction furnace through the coal gasification gas outlet pipe, an oil shale sample reacts in the environment of the high-temperature coal gasification gas to generate liquid products and gaseous products, the liquid products enter the liquid product collecting box through the liquid product collecting pipe, and the gaseous product enters the gaseous product collecting box through the gaseous product discharge pipe, oil shale is simulated, and finally the liquid product and the gaseous product are analyzed.
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