Oil-rich coal underground in-situ pyrolysis product separation and recovery equipment

Abstract

The invention discloses underground oil-rich coal in-situ pyrolysis product separation and recovery equipment which comprises a cooling assembly, a conduction assembly and a gas collection assembly, and the cooling assembly, the conduction assembly and the gas collection assembly are used for condensing and separating pyrolysis gaseous products. When ordinary condensation separation and recovery equipment cools and recovers gaseous tar in in-situ pyrolysis products in an oil-rich coal well, the problem that a cooling pipe is blocked due to the fact that the tar has high surface tension and viscosity and is prone to mutual adsorption and gathering together is solved. According to the device, the hydrodynamic assembly and the conduction assembly are designed, and through cooperative use of the hydrodynamic assembly and the conduction assembly, the interior of the cooling coil pipe can be automatically and intermittently pressurized and filled with gas in the gaseous tar cooling and recycling process, so that the conduction and dredging effects are achieved through the pressurized airflow, on one hand, blockage caused by tar gathering is avoided, and on the other hand, the cooling efficiency is improved; and on the other hand, cooling can be assisted.

Description

Technical Field

[0001] The present application relates to the technical field of separation and recovery of pyrolysis products, in particular to equipment for separation and recovery of in-situ pyrolysis products of oil-rich coal underground. Background Art

[0002] The main product of in-situ pyrolysis of oil-rich coal underground is coal tar. Oil-rich coal refers to a special coal resource with a tar yield of 7% to 12%, which has the composite properties of coal, oil and gas. The in-situ pyrolysis technology of oil-rich coal underground is a method of extracting tar in situ deep underground. The produced gaseous tar needs to be separated and recovered using corresponding cooling equipment.

[0003] The existing patent document "CN210096979U A High-temperature Gas Cooling Chamber" discloses a cooling and recovery device. Although the cooling and recovery device in the above technical solution can cool and recover gaseous tar, during the cooling process, due to the high surface tension and viscosity of the tar itself, it is easy to adsorb each other and gather together to form agglomerates, and the long-term aggregation of agglomerates is likely to cause the problem of clogging the pipeline;

[0004] That is, the prior art has the following technical problems: ordinary cooling and recovery equipment is prone to form lumps and block pipelines during the cooling of tar. Therefore, in order to solve the above problems, an in-situ pyrolysis product separation and recovery device for oil-rich coal underground is proposed. Summary of the invention

[0005] In this embodiment, an underground in-situ pyrolysis product separation and recovery device for oil-rich coal is provided to solve the problem that common cooling and recovery equipment in the prior art is prone to form lumps and block pipelines during the cooling of tar.

[0006] According to one aspect of the present application, an underground in-situ pyrolysis product separation and recovery device for oil-rich coal is provided, and the underground in-situ pyrolysis product separation and recovery device for oil-rich coal comprises:

[0007] A cooling component for condensing and separating the pyrolysis gaseous product, wherein a hydraulic component is fixedly connected to the bottom end of the cooling component;

[0008] A conduction component, which is fixedly arranged on the side wall of the hydraulic component, is connected to the hydraulic component, and can automatically conduct pressurized gas to the pipeline when cooling the gaseous product;

[0009] A gas collecting assembly connected to a cooling assembly;

[0010] A gas recovery component is connected to the hydraulic component, and the gas recovery component is connected to the gas collection component. The gas recovery component can recover the gas used for conduction.

[0011] Furthermore, the cooling component includes a cooling bin, a coolant output end, a coolant input end, a cooling coil, a coil input end and a coil output end. A coolant output end is provided at the upper end of the cooling bin, a coolant input end is provided at the bottom end of the cooling bin, a cooling coil is fixedly provided in the inner cavity of the cooling bin, a coil input end is fixedly provided at the upper end of the cooling coil, the coil input end extends to the outer wall of the cooling bin, a coil output end is fixedly provided at the bottom end of the cooling coil, the coil output end extends to the outer wall of the cooling bin, and an input check valve is installed on the coil input end.

[0012] Furthermore, the hydrodynamic component includes a circular shell, a connecting pipe, a rotating roller, blades and a half gear. The connecting pipe is fixedly connected to the coolant input end, a circular shell is fixedly arranged on the connecting pipe, and the connecting pipe is communicated with the inner cavity of the circular shell.

[0013] Furthermore, a rotating roller is rotatably connected in the inner cavity of the circular shell, a blade is fixedly provided at the arc-shaped wall of the rotating roller, a plurality of blades are provided, and the plurality of blades are equidistantly fixed at the arc-shaped wall of the rotating roller, a half gear is rotatably connected at the side wall of the circular shell, and the half gear is fixedly connected to the rotating roller.

[0014] Furthermore, the conduction component includes a movable guide rail, a positioning column, a rack, a fixed cylinder, a fixed bracket, a movable piston, a push rod, a booster spring, an air suction hose and an air jet hose. The fixed bracket is fixedly arranged on the side wall of the circular shell, the fixed bracket is fixedly connected to the fixed cylinder, the movable piston is slidably connected in the inner cavity of the fixed cylinder, one end of the movable piston is fixedly connected to one end of the push rod, the other end of the push rod passes through the inner cavity side wall of the fixed cylinder and extends outside the wall, one end of the booster spring is fixedly connected to the side wall of the movable piston, and the other end of the booster spring is fixedly connected to the inner cavity wall of the fixed cylinder.

[0015] Furthermore, the positioning column is fixedly arranged on the side wall of the circular shell, the movable guide rail is arranged on the positioning column and slidingly cooperates with the positioning column, a rack is fixedly connected to the upper side of the movable guide rail, the rack is meshed with the half gear, and one end of the rack is fixedly connected to one end of the push rod.

[0016] Furthermore, one end of the jet hose is fixedly connected to the left end of the inner cavity of the fixed cylinder, the other end of the jet hose extends into the inner cavity of the cooling coil and is fixedly connected to the cooling coil, one end of the suction hose is fixedly connected to the left end of the inner cavity of the fixed cylinder, the other end of the suction hose extends into the inner cavity of the airbag and is fixedly connected to the airbag, an output one-way valve is installed on the jet hose, and an input one-way valve is installed on the suction hose.

[0017] Furthermore, the inner cavity of the airbag is filled with nitrogen.

[0018] Furthermore, the gas collection assembly includes an output pipe, a cylindrical shell and an air collecting bag. The output pipe is connected to the coil output end, a cylindrical shell is fixedly provided on the output pipe, an air collecting bag is fixedly connected to the upper position of the cylindrical shell, and the air collecting bag is connected to the inner cavity of the cylindrical shell.

[0019] Furthermore, the gas recovery assembly includes a swing arm, a first connecting frame, a fixed frame, a second connecting frame, a connecting tube, a piston, a piston, a moving rod, an input hose and an output hose, one end of the swing arm is fixedly connected to the center of the half gear, one end of the swing arm is rotatably connected to the first connecting frame, the fixed frame is fixedly connected to the side wall of the circular shell, one end of the fixed frame is rotatably connected to the second connecting frame, one end of the second connecting frame is fixedly connected to a connecting tube, a piston is slidably connected in the inner cavity of the connecting tube, one side of the piston is fixedly connected to one end of the moving rod, the other end of the moving rod is fixedly connected to the first connecting frame, an input hose and an output hose are fixedly connected to one end of the inner cavity of the connecting tube, one end of the input hose extends into the inner cavity of the air collecting bag and is fixedly connected to the air collecting bag, one end of the output hose extends into the inner cavity of the air bag and is fixedly connected to the air bag, an input check valve is installed on the input hose, and an output check valve is installed on the output hose.

[0020] Through the above-mentioned embodiments of the present application, in order to solve the problem in the prior art that, when ordinary condensation separation and recovery equipment is used to cool and recover the gaseous tar in the in-situ pyrolysis products of oil-rich coal mines, the tar itself has high surface tension and viscosity, and is easily adsorbed and aggregated together, causing blockage in the cooling pipe, the present application designs a hydraulic component and a conductive component. Through the coordinated use of the hydraulic component and the conductive component, the interior of the cooling coil can be automatically and intermittently pressurized and filled with gas during the cooling and recovery of the gaseous tar, thereby playing a role of conducting and unblocking through the pressurized airflow. On the one hand, it avoids blockage caused by tar aggregation, and on the other hand, it can assist in cooling and cooling. At the same time, the present application also designs a gas recovery component, which can automatically recycle and reuse the used gas, saving costs and being suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0023] Figure 2 This is a schematic structural diagram of the back of an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the front side of an embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the internal structure of a cooling assembly according to an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of a water dynamic component according to an embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the overall structure of a conducting component according to an embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the internal structure of a fixed cylinder according to an embodiment of the present application;

[0029] Figure 8 This is a schematic diagram of the structure of a gas collection assembly according to an embodiment of the present application;

[0030] Fig. 9 A connection diagram of a gas recovery component according to an embodiment of the present application;

[0031] Fig.10 This is a schematic diagram of the internal structure of a gas recovery component according to an embodiment of the present application.

[0032] In the figure:

[0033] Cooling assembly 1, cooling chamber 101, coolant output end 102, coolant input end 103, cooling coil 104, coil input end 105, coil output end 106;

[0034] Water dynamic component 2, circular shell 201, connecting pipe 202, rotating roller 203, blade 204, half gear 205;

[0035] Conducting assembly 3, movable guide rail 301, positioning column 302, rack 303, fixed cylinder 304, fixed bracket 305, movable piston 306, push rod 307, booster spring 308, suction hose 309, jet hose 310, air bag 311;

[0036] Gas collection assembly 4, output pipe 401, cylindrical shell 402, gas collection bag 403;

[0037] Gas recovery assembly 5, swing arm 501, first connecting frame 502, fixed frame 503, second connecting frame 504, connecting tube 505, piston 506, moving rod 507, input hose 508, output hose 509. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0041] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0042] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] See also Figure 1-3 As shown, the in-situ pyrolysis product separation and recovery equipment for oil-rich coal underground, the in-situ pyrolysis product separation and recovery equipment for oil-rich coal underground includes:

[0044] A cooling component 1 for condensing and separating the pyrolysis gaseous product, wherein a hydraulic component 2 is fixedly connected to the bottom end of the cooling component 1;

[0045] A conduction component 3, which is fixedly arranged on the side wall of the hydraulic component 2, and is connected to the hydraulic component 2. The conduction component 3 can automatically conduct pressurized gas to the pipeline when cooling the gaseous product;

[0046] A gas collecting component 4, wherein the gas collecting component 4 is connected to the cooling component 1;

[0047] A gas recovery component 5, wherein the gas recovery component 5 is connected to the hydraulic component 2, and the gas recovery component 5 is connected to the gas collection component 4, and the gas recovery component 5 can recover the gas used for conduction;

[0048] Through the above technical solution, through the coordinated use of the hydraulic component 2 and the conduction component 3, the gas can be automatically and intermittently pressurized and filled into the interior of the cooling coil 104 during the cooling and recovery process of the gaseous tar, so that the pressurized airflow plays a role in conducting and clearing, which on the one hand avoids the blockage caused by the accumulation of tar, and on the other hand can assist in cooling and cooling. At the same time, the present application also designs a gas recovery component 5, which can automatically recycle and reuse the used gas, saving costs and being suitable for promotion;

[0049] For further technical solutions, see Figure 4As shown, the cooling assembly 1 includes a cooling bin 101, a coolant output end 102, a coolant input end 103, a cooling coil 104, a coil input end 105 and a coil output end 106. The cooling bin 101 is provided with a coolant output end 102 at the upper end, the cooling bin 101 is provided with a coolant input end 103 at the bottom end, the cooling bin 101 is fixedly provided with a cooling coil 104 in the inner cavity of the cooling bin 101, the upper end of the cooling coil 104 is fixedly provided with a coil input end 105, the coil input end 105 extends to the outer wall of the cooling bin 101, the bottom end of the cooling coil 104 is fixedly provided with a coil output end 106, the coil output end 106 extends At the outer wall of the cooling bin 101, an input check valve is installed on the coil input end 105. Through the technical solution, the gaseous tar that needs to be separated and recovered is input into the inner cavity of the cooling coil 104 through the coil input end 105, and the coolant is output into the inner cavity of the cooling bin 101 through the coolant input end 103. The contact between the coolant and the cooling coil 104 realizes the function of heat exchange, so that the gaseous tar flowing inside the cooling coil 104 is cooled and condensed, so that the cooled tar is output through the coil output end 106, and the cooling water is output through the coolant output end 102 after being heated. Through the technical solution, the cooling, separation and recovery function of the gaseous tar is realized;

[0050] For specific technical solutions, please refer to Figure 5 As shown, the water dynamic component 2 includes a circular shell 201, a connecting pipe 202, a rotating roller 203, a blade 204 and a half gear 205. The connecting pipe 202 is fixedly connected to the coolant input end 103. The circular shell 201 is fixedly arranged on the connecting pipe 202. The connecting pipe 202 is communicated with the inner cavity of the circular shell 201. When the present application is in use, the cooling water is transported to the coolant input end 103 through the connecting pipe 202, so as to enter the inner cavity of the cooling chamber 101 for cooling.

[0051] A rotating roller 203 is rotatably connected in the inner cavity of the circular shell 201, and a blade 204 is fixedly provided at the arc-shaped wall of the rotating roller 203. There are a plurality of blades 204, and the blades 204 are equidistantly fixed at the arc-shaped wall of the rotating roller 203. A half gear 205 is rotatably connected to the side wall of the circular shell 201, and the half gear 205 is fixedly connected to the rotating roller 203. Through the present technical solution, in the process of circulating cooling water, the cooling water flows through the connecting pipe 202 and the circular shell 201, and then the blade 204 is pushed to rotate by the flow of cooling water, so that the rotating roller 203 is driven to rotate by the rotation of the blade 204, and then the half gear 205 is driven to rotate. Through the present technical solution, when cooling gaseous tar, the half gear 205 can be automatically driven to rotate by the conveying movement of cooling water.

[0052] As a preferred technical solution, please refer to Figure 6 and Figure 7 As shown, the conduction component 3 includes a movable guide rail 301, a positioning column 302, a rack 303, a fixed cylinder 304, a fixed bracket 305, a movable piston 306, a push rod 307, a pressure-boosting spring 308, an air suction hose 309 and an air-jet hose 310. The fixed bracket 305 is fixedly arranged on the side wall of the circular shell 201. The fixed bracket 305 is fixedly connected with the fixed cylinder 304. The movable piston 306 is slidably connected in the inner cavity of the fixed cylinder 304. One end of the movable piston 306 is fixedly connected with one end of the push rod 307. The other end of the push rod 307 penetrates the inner cavity side wall of the fixed cylinder 304 and extends outside the wall. One end of the pressure-boosting spring 308 is fixedly connected with the side wall of the movable piston 306. The other end of the pressure-boosting spring 308 is fixedly connected with the inner cavity wall of the fixed cylinder 304. According to the technical solution, the movable piston 306 can be driven to move by the movement of the push rod 307.

[0053] The positioning column 302 is fixedly arranged on the side wall of the circular shell 201, and the movable guide rail 301 is arranged on the positioning column 302 and slidably cooperates with the positioning column 302. A rack 303 is fixedly connected to the upper side of the movable guide rail 301, and the rack 303 is meshed with the half gear 205. One end of the rack 303 is fixedly connected to one end of the push rod 307. Through the technical solution, when the gas tar is cooled, the conveying movement of the cooling water can automatically drive the half gear 205 to rotate, so that the rotation of the half gear 205 can drive the rack 303 to move, and the movement of the rack 303 can drive the push rod 307 to move, so that the movement of the push rod 307 can drive the movable piston 306 to move. The movement causes the movable piston 306 to move rightward in the inner cavity of the fixed cylinder 304. As the movable piston 306 continues to move, the booster spring 308 is continuously compressed. When the half gear 205 meshes with the rack 303 and rotates to the toothless part, since the rack 303 loses the limiting effect of the teeth and the booster spring 308 is in a compressed state at this time, the booster spring 308 will rebound quickly, pushing the movable piston 306 to move quickly, causing the movable piston 306 to move back to the left end of the fixed cylinder 304. As the half gear 205 continues to rotate, the toothed part of the half gear 205 will mesh with the rack 303, and drive the rack 303 to move rightward, thereby driving the movable piston 306 to move rightward again;

[0054] One end of an air jet hose 310 is fixedly connected to the left end of the inner cavity of the fixed cylinder 304, and the other end of the air jet hose 310 extends into the inner cavity of the cooling coil 104 and is fixedly connected to the cooling coil 104. One end of an air suction hose 309 is fixedly connected to the left end of the inner cavity of the fixed cylinder 304, and the other end of the air suction hose 309 extends into the inner cavity of the air bag 311 and is fixedly connected to the air bag 311. An output check valve is installed on the air jet hose 310, and an input check valve is installed on the air suction hose 309.

[0055] The inner cavity of the airbag 311 is filled with nitrogen. According to the technical solution, when the movable piston 306 moves rightward in the inner cavity of the fixed cylinder 304, the fixed cylinder 304 can extract nitrogen in the inner cavity of the airbag 311 through the suction hose 309 due to the rightward movement of the movable piston 306, so that the nitrogen enters the inner cavity of the fixed cylinder 304. As the booster spring 308 is continuously compressed, the elastic force after compression is released, pushing the movable piston 306 to move at a high speed, so that the nitrogen in the inner cavity of the fixed cylinder 304 is pressurized and transported to the inner cavity of the cooling coil 104 through the jet hose 310 through the high-speed movement of the movable piston 306. In the cavity, since nitrogen is quickly introduced into the cooling coil 104 in a short time, it can play the role of conducting and clearing the blockage, thereby avoiding the blockage caused by adsorption and aggregation during the tar cooling process, and plays the role of automatic conduction, which is particularly suitable for the cooling of gaseous tar. At the same time, through the coordinated use of the hydraulic component 2 and the conduction component 3, pressurized nitrogen can be continuously and intermittently introduced into the interior of the cooling coil 104 during the flow of cooling water, which plays a better unblocking and conducting function. At the same time, nitrogen is used as the conducting medium and will not react with tar.

[0056] For further technical solutions, see Figure 8 As shown, the gas collection component 4 includes an output pipe 401, a cylindrical shell 402 and an air collecting bag 403. The output pipe 401 is connected to the coil output end 106. The output pipe 401 is fixedly provided with a cylindrical shell 402. The upper position of the cylindrical shell 402 is fixedly connected with an air collecting bag 403. The air collecting bag 403 is connected to the inner cavity of the cylindrical shell 402. Through the present technical solution, the cooled tar can be output through the output pipe 401, and nitrogen can be output simultaneously with the tar. Since nitrogen itself is relatively light, when it moves to the cylindrical shell 402, it will move upward into the inner cavity of the air collecting bag 403 due to its own low density.

[0057] For specific technical solutions, please refer to Fig. 9 and Fig.10As shown, the gas recovery assembly 5 includes a swing arm 501, a first connecting frame 502, a fixed frame 503, a second connecting frame 504, a connecting tube 505, a piston 506, a piston 506, a moving rod 507, an input hose 508 and an output hose 509, one end of the swing arm 501 is fixedly connected to the center of the half gear 205, one end of the swing arm 501 is rotatably connected to the first connecting frame 502, the fixed frame 503 is fixedly connected to the side wall of the circular shell 201, and one end of the fixed frame 503 is rotatably connected to A second connecting frame 504, at one end of which a connecting tube 505 is fixedly connected, a piston 506 is slidably connected in the inner cavity of the connecting tube 505, one end of a moving rod 507 is fixedly connected to one side of the piston 506, the other end of the moving rod 507 is fixedly connected to the first connecting frame 502, an input hose 508 and an output hose 509 are fixedly connected to one end of the inner cavity of the connecting tube 505, one end of the input hose 508 extends into the inner cavity of the air collecting bag 403 and is fixed to the air collecting bag 403 The output hose 509 is connected, one end of the output hose 509 extends into the inner cavity of the airbag 311 and is fixedly connected to the airbag 311. The input hose 508 is installed with an input check valve, and the output hose 509 is installed with an output check valve. According to the technical solution, when the half gear 205 rotates continuously, the swing arm 501 can be driven to rotate, so that the rotation of the swing arm 501 can drive the first connecting frame 502 to move in an annular manner, and then drive one end of the moving rod 507 to move in an annular manner, so that the piston 506 can be driven to rotate in the connecting cylinder 5 05 reciprocates in the inner cavity of the connecting tube 505. When the piston 506 moves to the left in the inner cavity of the connecting tube 505, the nitrogen gathered in the air bag 403 can be extracted through the input hose 508, so that the nitrogen enters the inner cavity of the connecting tube 505. When the piston 506 moves to the right in the inner cavity of the connecting tube 505, the nitrogen can be transported to the inner cavity of the air bag 311 through the output hose 509. It can be seen from the above description that through the setting of the gas recovery component 5, the nitrogen can be automatically recovered and reused during use, thereby reducing costs.

[0058] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An underground in-situ pyrolysis product separation and recovery device for oil-rich coal, characterized by: The oil-rich coal underground in-situ pyrolysis product separation and recovery equipment comprises: A cooling component (1) for condensing and separating pyrolysis gaseous products, wherein a hydraulic component (2) is fixedly connected to the bottom end of the cooling component (1); A conduction component (3), the conduction component (3) is fixedly arranged on the side wall of the hydraulic component (2), the conduction component (3) is connected to the hydraulic component (2), and the conduction component (3) can automatically conduct pressurized gas to the pipeline when cooling the gaseous product; A gas collecting assembly (4), wherein the gas collecting assembly (4) is connected to the cooling assembly (1); A gas recovery component (5), the gas recovery component (5) is connected to the hydraulic component (2), the gas recovery component (5) is connected to the gas collection component (4), and the gas recovery component (5) can recover the gas used for conduction.

2. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 1 is characterized in that: The cooling assembly (1) comprises a cooling chamber (101), a cooling liquid output end (102), a cooling liquid input end (103), a cooling coil (104), a coil input end (105) and a coil output end (106); the cooling liquid output end (102) is arranged at the upper end of the cooling chamber (101), the cooling liquid input end (103) is arranged at the bottom end of the cooling chamber (101), and a cooling liquid cooling element (104) is fixedly arranged in the inner cavity of the cooling chamber (101). A cooling coil (104) is provided, wherein a coil input end (105) is fixedly arranged at the upper end of the cooling coil (104), and the coil input end (105) extends to the outer wall of the cooling bin (101); a coil output end (106) is fixedly arranged at the bottom end of the cooling coil (104), and the coil output end (106) extends to the outer wall of the cooling bin (101); and an input non-return valve is installed on the coil input end (105).

3. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 1 is characterized in that: The hydraulic assembly (2) comprises a circular shell (201), a connecting pipe (202), a rotating roller (203), a blade (204) and a half gear (205); the connecting pipe (202) is fixedly connected to a cooling liquid input end (103); the connecting pipe (202) is fixedly provided with a circular shell (201); and the connecting pipe (202) is communicated with an inner cavity of the circular shell (201).

4. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 3 is characterized in that: A rotating roller (203) is rotatably connected in the inner cavity of the circular shell (201), a blade (204) is fixedly provided on the arc-shaped wall of the rotating roller (203), a plurality of blades (204) are provided, and the plurality of blades (204) are equidistantly fixed on the arc-shaped wall of the rotating roller (203), a half gear (205) is rotatably connected on the side wall of the circular shell (201), and the half gear (205) is fixedly connected to the rotating roller (203).

5. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 1, characterized in that: The conduction assembly (3) comprises a movable guide rail (301), a positioning column (302), a rack (303), a fixed cylinder (304), a fixed bracket (305), a movable piston (306), a push rod (307), a pressure-increasing spring (308), an air suction hose (309) and an air discharge hose (310), wherein the fixed bracket (305) is fixedly arranged on the side wall of the circular shell (201), and the fixed cylinder (304) is fixedly connected to the fixed bracket (305). A movable piston (306) is slidably connected in the inner cavity of the fixed cylinder (304); one end of the movable piston (306) is fixedly connected to one end of a push rod (307); the other end of the push rod (307) passes through the inner cavity side wall of the fixed cylinder (304) and extends outside the wall; one end of a booster spring (308) is fixedly connected to the side wall of the movable piston (306); the other end of the booster spring (308) is fixedly connected to the inner cavity wall of the fixed cylinder (304).

6. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 5, characterized in that: The positioning column (302) is fixedly arranged on the side wall of the circular shell (201), the movable guide rail (301) is arranged on the positioning column (302) and is slidably matched with the positioning column (302), a rack (303) is fixedly connected to the upper side of the movable guide rail (301), the rack (303) is meshed with the half gear (205), and one end of the rack (303) is fixedly connected to one end of the push rod (307).

7. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 5, characterized in that: One end of an air jet hose (310) is fixedly connected to the left end of the inner cavity of the fixed cylinder (304), and the other end of the air jet hose (310) extends into the inner cavity of the cooling coil (104) and is fixedly connected to the cooling coil (104). One end of an air suction hose (309) is fixedly connected to the left end of the inner cavity of the fixed cylinder (304), and the other end of the air suction hose (309) extends into the inner cavity of the air bag (311) and is fixedly connected to the air bag (311). An output check valve is installed on the air jet hose (310), and an input check valve is installed on the air suction hose (309).

8. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 7, characterized in that: The inner cavity of the airbag (311) is filled with nitrogen.

9. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 1, characterized in that: The gas collection assembly (4) comprises an output pipe (401), a cylindrical shell (402) and an air collecting bag (403); the output pipe (401) is connected to the coil output end (106); the output pipe (401) is fixedly provided with a cylindrical shell (402); the upper position of the cylindrical shell (402) is fixedly connected with an air collecting bag (403); the air collecting bag (403) is communicated with the inner cavity of the cylindrical shell (402).

10. The equipment for separating and recovering the in-situ pyrolysis products of oil-rich coal underground according to claim 1, characterized in that: The gas recovery assembly (5) comprises a swing arm (501), a first connecting frame (502), a fixed frame (503), a second connecting frame (504), a connecting tube (505), a piston (506), a piston (506), a moving rod (507), an input hose (508) and an output hose (509), one end of the swing arm (501) is fixedly connected to the center of the half gear (205), one end of the swing arm (501) is rotatably connected to the first connecting frame (502), the fixed frame (503) is fixedly connected to the side wall of the circular shell (201), one end of the fixed frame (503) is rotatably connected to the second connecting frame (504), one end of the second connecting frame (504) is fixedly connected to the connecting tube (505), and the A piston (506) is slidably connected in the inner cavity of the connecting tube (505), one end of a movable rod (507) is fixedly connected to one side of the piston (506), and the other end of the movable rod (507) is fixedly connected to the first connecting frame (502). An input hose (508) and an output hose (509) are fixedly connected to one end of the inner cavity of the connecting tube (505), one end of the input hose (508) extends into the inner cavity of the air collecting bag (403) and is fixedly connected to the air collecting bag (403), one end of the output hose (509) extends into the inner cavity of the air bag (311) and is fixedly connected to the air bag (311), an input check valve is installed on the input hose (508), and an output check valve is installed on the output hose (509).

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