Coal gasification black water waste heat recovery and utilization device

Abstract

The application discloses a coal gasification black water waste heat recycling device and relates to the technical field of waste heat recycling. The device comprises an equipment box, a bottom plate fixedly connected to the bottom surface of the equipment box, an exhaust pipe fixedly connected to the surface of the equipment box, a valve fixedly installed on the exhaust pipe, an air inlet pipe fixedly connected to one side of the equipment box, one end of the air inlet pipe fixedly connected to one end of a first pipeline, the first pipeline arranged in the equipment box, and a plurality of groups of first exhaust holes arranged on the first pipeline. The device further comprises a filtering assembly, a recycling assembly and an adjusting assembly. The device has a reasonable structure. The filtering assembly is used for preliminarily treating impurities in coal gas. Then, the recycling assembly and the adjusting assembly are used for mixing coal gas with liquid in a recycling box, so that the temperature of the coal gas can be conducted to the liquid. Finally, the temperature of the liquid in the recycling box can be recycled through a second pipeline.

Description

Technical Field

[0001] This invention relates to the field of waste heat recovery and utilization technology, and in particular to a device for recovering and utilizing waste heat from coal gasification black water. Background Technology

[0002] Coal gasification technology is the leading technology in the modern coal chemical industry. Based on the syngas cooling method, coal gasification technology can be divided into two types: quench process and waste heat boiler process. The quench process, with its mature technology, low investment, and simple operation, is currently the most widely used coal gasification technology both domestically and internationally. Raw coal and oxygen undergo combustion and partial oxidation reactions in the gasifier reaction chamber, generating high-temperature, high-pressure crude syngas and liquid slag. After exiting the reaction chamber, the crude syngas and slag enter the quench chamber, where a large amount of quench water rapidly cools the crude syngas from a high temperature of 1300°C–1400°C to 240°C–260°C, resulting in crude syngas with a high gas-to-vapor ratio and quench black that has absorbed a large amount of sensible heat.

[0003] When coal gas is extracted underground, it easily carries water and ash. The pH value of the quench black water fluctuates greatly, has a high solid content, and contains soluble gases and harmful elements such as Ca2+, Mg2+, Cl-, and S2-. This leads to difficulties in waste heat recovery from the gasification unit, significant energy waste in the gasification system, energy utilization rate of less than 70%, and other problems related to inefficient energy use. Furthermore, the black water exiting the quench chamber has high pressure and contains pressure energy. Currently, pressure reducing valves are mainly used for depressurization, but due to the large amount of solids in the black water, timely treatment is necessary to avoid affecting subsequent heat recovery. Summary of the Invention

[0004] The purpose of this application is to provide a waste heat recovery and utilization device for coal gasification black water, which realizes the preliminary treatment of impurities in coal gas through a filter component, then the coal gas is mixed with the liquid inside the recovery tank by the recovery component and the regulating component, so as to facilitate the transfer of coal gas temperature to the liquid, and finally the temperature of the liquid inside the recovery tank is recovered and utilized through a second pipe.

[0005] To achieve the above objectives, this application provides the following technical solution: a coal gasification black water waste heat recovery and utilization device, comprising an equipment box, a base plate fixedly connected to the bottom surface of the equipment box, an exhaust pipe fixedly connected to the surface of the equipment box, a valve fixedly installed on the exhaust pipe, an air inlet pipe fixedly connected to one side of the equipment box, one end of the air inlet pipe being fixedly connected to one end of a first pipe, the first pipe being disposed inside the equipment box, and having a plurality of sets of first exhaust holes; further comprising a filter assembly, a recovery assembly, and an adjustment assembly, the filter assembly being disposed inside the equipment box for treating impurities in the coal gas, the recovery assembly being disposed inside the equipment box for cooperative use, and the adjustment assembly being disposed at the top of the equipment box for cooperative use.

[0006] Preferably, the filter assembly includes a frame fixedly installed on the inner wall of the equipment box, a filter plate is provided on the frame, side plates are fixedly connected to the middle positions of both sides of the filter plate, and a horizontal plate is fixedly connected to the top position of the side plates.

[0007] Preferably, a pair of first bearing seats are fixedly connected to both sides of the top surface of the frame, a crossbar is fixedly connected to the pair of first bearing seats, a sleeve is slidably connected to the crossbar, a retaining ring is fixedly connected to one end of the crossbar, and a first spring is sleeved on the crossbar. The two ends of the first spring are fixedly connected to one side of the sleeve and one side of the retaining ring, respectively.

[0008] Preferably, the sleeve is fixedly connected to the bottom surface of the support plate, the support plate is fixedly connected to a hinge seat, a locking block is rotatably connected to the hinge seat, a locking groove is provided on one side of the locking block, and the horizontal plate is locked inside the locking groove.

[0009] Preferably, the recycling assembly includes a carrying plate fixedly installed inside the equipment box, a recycling bin is provided on the carrying plate, gas collection hoods are fixedly installed on both sides of the carrying plate, a vent pipe is fixedly connected to one side of the top surface of the gas collection hood, the top end of the vent pipe enters the interior of the recycling bin, the vent pipe is fixedly installed on a fixed base, the fixed base is fixedly connected to the interior of the recycling bin, and a second exhaust hole is provided on the fixed base.

[0010] Preferably, a positioning plate is fixedly connected inside the recycling bin, and a first pair of connecting pipes is fixedly connected to the positioning plate. One end of the first pair of connecting pipes is fixedly connected to one end of a second pipe. The second pipe is disposed on the bottom wall of the recycling bin, and a second pair of connecting pipes is fixedly connected to the other end of the second pipe. The second pair of connecting pipes is fixedly installed on the positioning plate.

[0011] Preferably, the adjustment assembly includes a plate fixedly installed on the surface of the equipment box, brackets fixedly connected to both sides of the plate, a drive motor fixedly installed at the center of the top surface of the brackets, a transmission rod fixedly connected to the output end of the drive motor, a disc fixedly connected to the bottom end of the transmission rod, and a pulley rotatably connected to the disc.

[0012] Preferably, the pulley is slidably connected inside the guide rail, and a linkage plate is fixedly connected to both sides of the guide rail. An arm plate is fixedly connected to the other end of the linkage plate. Both ends of the arm plate are slidably connected to the slide rod. Both ends of the slide rod are fixedly connected to the second bearing seat. One end of the second bearing seat is fixedly connected to one side of the bracket.

[0013] Preferably, a number of rods are fixedly connected to the bottom surface of the linkage plate, sleeves are rotatably connected to the rods, an adsorption plate is fixedly connected to the surface of the sleeves, and a connector is rotatably connected to the top of the sleeves, with a round hole on the surface of the connector.

[0014] Preferably, a collar is fixedly connected to the rod body, a pair of frames are fixedly connected to the surface of the collar, a rod is movably inserted into the pair of frames, a limit ring is fixedly connected to one end of the rod, a second spring is sleeved on the rod, and the two ends of the second spring are fixedly connected to one side of the frame body and one side of the limit ring, respectively.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The present invention has a reasonable structure. When the gas enters the interior of the first pipe through the inlet pipe, it is discharged through the first exhaust hole on the first pipe. Then, the gas passes through the filter plate to facilitate the filtration of impurities in the gas. When the filter plate needs to be disassembled, the filter plate is pulled upward to complete the disassembly. During installation, the two ends of the horizontal plate are pressed against the locking block, and then the sleeve slides on the horizontal bar. The movement of the sleeve pulls the first spring, and the pull of the first spring makes the two ends of the horizontal plate lock into the inside of the locking groove, thereby facilitating the installation of the filter plate.

[0017] 2. In this invention, the filtered coal gas enters the interior of the gas collecting hood and then the interior of the vent pipe. A second exhaust port is provided on the vent pipe, through which the coal gas enters the liquid inside the recovery box. The heat in the coal gas is conducted to the liquid inside the recovery box. A second pipe is provided inside the recovery box, and the heat in the liquid inside the recovery box is transferred to the second pipe to heat the liquid inside the second pipe, thereby completing the recovery and utilization of the heat of the coal gas.

[0018] 3. In this invention, the liquid inside the recycling bin contains a large amount of minerals. The drive motor operates, causing the disc on the transmission rod to rotate. The rotation of the disc causes the pulley to slide inside the guide rail, and then the linkage plate on the guide rail moves back and forth. The movement of the linkage plate causes the arm plate to slide on the slide rod, increasing the stability of the linkage plate's movement. The movement of the linkage plate causes the adsorption plate on the sleeve rod to adsorb the minerals in the liquid. When installing the sleeve rod, the connector is moved upward, and one end of the insertion rod slides against the surface of the connector, making it easy for one end of the insertion rod to be inserted into the round hole by the elastic force of the second spring, thus facilitating the installation of the sleeve rod. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the equipment box;

[0021] Figure 2 This is a rear-view 3D structural diagram of the equipment box;

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the equipment box;

[0023] Figure 4 This is a schematic diagram of the three-dimensional frame structure;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the carrier plate;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the support frame;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the rod.

[0027] In the diagram: 1. Equipment box; 101. Base plate; 102. Exhaust pipe; 103. Valve; 104. Inlet pipe; 105. First pipe; 106. First exhaust port; 2. Frame; 201. Filter plate; 202. Side plate; 203. Horizontal plate; 204. First bearing seat; 205. Crossbar; 206. Sleeve; 207. Snap ring; 208. First spring; 209. Support plate; 210. Hinge seat; 211. Locking block; 212. Slot; 3. Loading plate; 301. Recycling box; 302. Gas collection hood; 303. Vent pipe; 304. Fixing seat; 305. Second... 306. Vent hole; 307. Positioning plate; 308. First connecting pipe; 309. Second connecting pipe; 4. Clamping plate; 401. Bracket; 402. Drive motor; 403. Transmission rod; 404. Disc; 405. Pulley; 406. Guide rail; 407. Linkage plate; 408. Arm plate; 409. Slide rod; 410. Second shaft seat; 411. Rod body; 412. Sleeve rod; 413. Adsorption plate; 414. Connecting joint; 415. Round hole; 416. Collar; 417. Frame body; 418. Insert rod; 419. Limiting ring; 420. Second spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Reference Figure 1 - Figure 7 The device for recovering and utilizing waste heat from coal gasification black water includes an equipment box 1. A base plate 101 is fixedly connected to the bottom of the equipment box 1. An exhaust pipe 102 is fixedly connected to the surface of the equipment box 1. A valve 103 is fixedly installed on the exhaust pipe 102. An air inlet pipe 104 is fixedly connected to one side of the equipment box 1. One end of the air inlet pipe 104 is fixedly connected to one end of a first pipe 105. The first pipe 105 is located inside the equipment box 1 and has several sets of first exhaust holes 106. The device also includes a filter assembly, a recovery assembly, and a regulating assembly. The filter assembly is located inside the equipment box 1 to treat impurities in the coal gas. The recovery assembly is located inside the equipment box 1 for use in conjunction with the filter assembly. The regulating assembly is located at the top of the equipment box 1 for use in conjunction with the recovery assembly.

[0030] Specifically, it should be noted that the drive motor 402 is electrically connected to the existing control unit via wires, and the subsequent utilization of waste heat is based on existing technologies, including gasification, pressure reduction, and solid-liquid separation of black water inside the recovery tank 301. These will not be elaborated on further here.

[0031] In one embodiment of this invention, the filter assembly includes a frame 2 fixedly mounted on the inner wall of the equipment housing 1. A filter plate 201 is mounted on the frame 2. Side plates 202 are fixedly connected to the middle positions of both sides of the filter plate 201. A horizontal plate 203 is fixedly connected to the top of the side plates 202. A pair of first bearing seats 204 are fixedly connected to both sides of the top surface of the frame 2. A horizontal rod 205 is fixedly connected to the pair of first bearing seats 204. A sleeve 206 is slidably connected to the horizontal rod 205. One end of the rod 205 is fixedly connected to a retaining ring 207. A first spring 208 is sleeved on the crossbar 205. The two ends of the first spring 208 are fixedly connected to one side of the sleeve 206 and one side of the retaining ring 207, respectively. The sleeve 206 is fixedly connected to the bottom surface of the support plate 209. A hinge seat 210 is fixedly connected to the support plate 209. A locking block 211 is rotatably connected to the hinge seat 210. A locking groove 212 is opened on one side of the locking block 211. A cross plate 203 is locked inside the locking groove 212.

[0032] Specifically, when the gas enters the interior of the first pipe 105 through the inlet pipe 104, it is discharged through the first exhaust hole 106 on the first pipe 105. Then, the gas passes through the filter plate 201 to filter impurities in the gas. When the filter plate 201 needs to be disassembled, the filter plate 201 is pulled upward to complete the disassembly. During installation, the two ends of the horizontal plate 203 are pressed against the locking block 211, and then the sleeve 206 slides on the horizontal bar 205. The movement of the sleeve 206 pulls the first spring 208, and the pull of the first spring 208 causes the two ends of the horizontal plate 203 to be locked inside the slot 212, thereby facilitating the installation of the filter plate 201.

[0033] As one embodiment of this invention, the recycling component includes a carrying plate 3 fixedly installed inside the equipment box 1. A recycling box 301 is provided on the carrying plate 3. Gas collection hoods 302 are fixedly installed on both sides of the carrying plate 3. A vent pipe 303 is fixedly connected to one side of the top surface of the gas collection hood 302. The top end of the vent pipe 303 enters the interior of the recycling box 301. The vent pipe 303 is fixedly installed on a fixing seat 304. The fixing seat 304 is fixedly connected to the interior of the recycling box 301. A second exhaust hole 305 is provided on the fixing seat 304. A positioning plate 306 is fixedly connected to the interior of the recycling box 301. A first pair of connecting pipes 307 is fixedly connected to the positioning plate 306. One end of the first pair of connecting pipes 307 is fixedly connected to one end of a second pipe 308. The second pipe 308 is provided on the bottom wall of the recycling box 301. The other end of the second pipe 308 is fixedly connected to a second pair of connecting pipes 309. The second pair of connecting pipes 309 is fixedly installed on the positioning plate 306.

[0034] Specifically, the filtered coal gas enters the interior of the gas collecting hood 302, and then enters the interior of the vent pipe 303. A second exhaust port 305 is provided on the vent pipe 303, through which the coal gas enters the liquid inside the recovery box 301. The heat in the coal gas is conducted to the liquid inside the recovery box 301. A second pipe 308 is provided inside the recovery box 301, and the heat in the liquid inside the recovery box 301 is transferred to the second pipe 308 to heat the liquid inside the second pipe 308, thereby completing the recovery and utilization of the heat of the coal gas.

[0035] In one embodiment of this invention, the adjustment assembly includes a clamping plate 4 fixedly installed on the surface of the equipment housing 1. Supports 401 are fixedly connected to both sides of the clamping plate 4. A drive motor 402 is fixedly installed at the center of the top surface of the support 401. A transmission rod 403 is fixedly connected to the output end of the drive motor 402. A disc 404 is fixedly connected to the bottom end of the transmission rod 403. A pulley 405 is rotatably connected to the disc 404. The pulley 405 is slidably connected inside a guide rail 406. Linkage plates 407 are fixedly connected to both sides of the guide rail 406. An arm plate 408 is fixedly connected to the other end of the linkage plate 407. Both ends of the arm plate 408 are slidably connected to a slide rod 409. Both ends of the slide rod 409 are fixedly connected to a second shaft seat 410. One end of the base 410 is fixedly connected to one side of the bracket 401. Several sets of rods 411 are fixedly connected to the bottom surface of the linkage plate 407. A sleeve rod 412 is rotatably connected to the rod 411. An adsorption plate 413 is fixedly connected to the surface of the sleeve rod 412. A connector 414 is rotatably connected to the top end of the sleeve rod 412. A round hole 415 is opened on the surface of the connector 414. A collar 416 is fixedly connected to the rod 411. A pair of frames 417 are fixedly connected to the surface of the collar 416. A plug rod 418 is movably inserted into the pair of frames 417. A limit ring 419 is fixedly connected to one end of the plug rod 418. A second spring 420 is sleeved on the plug rod 418. The two ends of the second spring 420 are fixedly connected to one side of the frame 417 and one side of the limit ring 419, respectively.

[0036] Specifically, the liquid inside the recycling bin 301 contains a large amount of minerals. The drive motor 402 operates, causing the disc 404 on the transmission rod 403 to rotate. The rotation of the disc 404 causes the pulley 405 to slide inside the guide rail 406. The linkage plate 407 on the guide rail 406 moves back and forth. The movement of the linkage plate 407 causes the arm plate 408 to slide on the slide rod 409, increasing the stability of the movement of the linkage plate 407. The movement of the linkage plate 407 causes the adsorption plate 413 on the sleeve rod 412 to adsorb the minerals in the liquid. When installing the sleeve rod 412, the connector 414 is moved upward, and one end of the insertion rod 418 slides against the surface of the connector 414, so that one end of the insertion rod 418 can be inserted into the round hole 415 by the elastic force of the second spring 420, thus facilitating the installation of the sleeve rod 412.

[0037] The working principle of this invention is as follows: When gas enters the interior of the first pipe 105 through the inlet pipe 104, it is discharged through the first exhaust hole 106 on the first pipe 105. Then, the gas passes through the filter plate 201 to filter impurities in the gas. When the filter plate 201 needs to be disassembled, the filter plate 201 is pulled upward to complete the disassembly. During installation, the two ends of the horizontal plate 203 are pressed against the locking block 211, and then the sleeve 206 slides on the horizontal bar 205. The movement of the sleeve 206 pulls the first spring 208, and the pull of the first spring 208 causes the two ends of the horizontal plate 203 to be locked inside the slot 212, thereby facilitating the installation of the filter plate 201.

[0038] The filtered coal gas enters the interior of the gas collecting hood 302, and then enters the interior of the vent pipe 303. A second exhaust port 305 is provided on the vent pipe 303, through which the coal gas enters the liquid inside the recovery box 301. The heat in the coal gas is conducted to the liquid inside the recovery box 301. A second pipe 308 is provided inside the recovery box 301, and the heat in the liquid inside the recovery box 301 is transferred to the second pipe 308 to heat the liquid inside the second pipe 308, thereby completing the recovery and utilization of the heat of the coal gas.

[0039] The liquid inside the recycling bin 301 contains a large amount of minerals. The drive motor 402 operates, causing the disc 404 on the transmission rod 403 to rotate. The rotation of the disc 404 causes the pulley 405 to slide inside the guide rail 406. The linkage plate 407 on the guide rail 406 moves back and forth. The movement of the linkage plate 407 causes the arm plate 408 to slide on the slide rod 409, increasing the stability of the movement of the linkage plate 407. The movement of the linkage plate 407 causes the adsorption plate 413 on the sleeve rod 412 to adsorb the minerals in the liquid. When installing the sleeve rod 412, the connector 414 is moved upward, and one end of the insertion rod 418 slides against the surface of the connector 414, so that one end of the insertion rod 418 can be inserted into the round hole 415 by the elastic force of the second spring 420, thus facilitating the installation of the sleeve rod 412.

[0040] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for recovering and utilizing waste heat from coal gasification black water, characterized in that, include Equipment box (1), with a base plate (101) fixedly connected to the bottom surface of the equipment box (1), an exhaust pipe (102) fixedly connected to the surface of the equipment box (1), a valve (103) fixedly installed on the exhaust pipe (102), an air inlet pipe (104) fixedly connected to one side of the equipment box (1), one end of the air inlet pipe (104) fixedly connected to one end of a first pipe (105), the first pipe (105) being located inside the equipment box (1), and a plurality of first exhaust holes (106) being provided on the first pipe (105); It also includes a filter assembly, a recovery assembly and a regulating assembly. The filter assembly is located inside the equipment box (1) to treat impurities in the gas. The recovery assembly is located inside the equipment box (1) for use. The regulating assembly is located at the top of the equipment box (1) for use. The recycling assembly includes a carrying plate (3) fixedly installed inside the equipment box (1), a recycling box (301) is provided on the carrying plate (3), and gas collection hoods (302) are fixedly installed on both sides of the carrying plate (3). A vent pipe (303) is fixedly connected to one side of the top surface of the gas collection hood (302). The top end of the vent pipe (303) enters the interior of the recycling box (301). The vent pipe (303) is fixedly installed on a fixing seat (304). The fixing seat (304) is fixedly connected to the interior of the recycling box (301). A second vent (305) is provided on the seat (304). A positioning plate (306) is fixedly connected inside the recycling bin (301). A first pair of connecting pipes (307) is fixedly connected on the positioning plate (306). One end of the first pair of connecting pipes (307) is fixedly connected to one end of the second pipe (308). The second pipe (308) is located on the bottom wall of the recycling bin (301). The other end of the second pipe (308) is fixedly connected to a second pair of connecting pipes (309). The second pair of connecting pipes (309) is fixedly installed on the positioning plate (306).

2. The waste heat recovery and utilization device for coal gasification black water according to claim 1, characterized in that: The filter assembly includes a frame (2) fixedly installed on the inner wall of the equipment box (1), a filter plate (201) is provided on the frame (2), a side plate (202) is fixedly connected to the middle position of both sides of the filter plate (201), and a horizontal plate (203) is fixedly connected to the top position of the side plate (202).

3. The waste heat recovery and utilization device for coal gasification black water according to claim 2, characterized in that: A pair of first bearing seats (204) are fixedly connected to both sides of the top surface of the frame (2). A crossbar (205) is fixedly connected to the pair of first bearing seats (204). A sleeve (206) is slidably connected to the crossbar (205). A retaining ring (207) is fixedly connected to one end of the crossbar (205). A first spring (208) is sleeved on the crossbar (205). The two ends of the first spring (208) are fixedly connected to one side of the sleeve (206) and one side of the retaining ring (207), respectively.

4. The waste heat recovery and utilization device for coal gasification black water according to claim 3, characterized in that: The sleeve (206) is fixedly connected to the bottom surface of the support plate (209). A hinge seat (210) is fixedly connected to the support plate (209). A locking block (211) is rotatably connected to the hinge seat (210). A locking groove (212) is provided on one side of the locking block (211). The horizontal plate (203) is locked inside the locking groove (212).

5. The waste heat recovery and utilization device for coal gasification black water according to claim 2, characterized in that: The adjustment assembly includes a card plate (4) fixedly installed on the surface of the equipment box (1). A bracket (401) is fixedly connected to both sides of the card plate (4). A drive motor (402) is fixedly installed at the center of the top surface of the bracket (401). A transmission rod (403) is fixedly connected to the output end of the drive motor (402). A disc (404) is fixedly connected to the bottom end of the transmission rod (403). A pulley (405) is rotatably connected to the disc (404).

6. The waste heat recovery and utilization device for coal gasification black water according to claim 5, characterized in that: The pulley (405) is slidably connected inside the guide rail (406). The guide rail (406) is fixedly connected to both sides of the guide rail (406). The other end of the linkage plate (407) is fixedly connected to the arm plate (408). The two ends of the arm plate (408) are slidably connected to the slide rod (409). The two ends of the slide rod (409) are fixedly connected to the second shaft seat (410). One end of the second shaft seat (410) is fixedly connected to one side of the bracket (401).

7. The waste heat recovery and utilization device for coal gasification black water according to claim 6, characterized in that: The bottom surface of the linkage plate (407) is fixedly connected to several sets of rods (411), and a sleeve rod (412) is rotatably connected to the rod (411). An adsorption plate (413) is fixedly connected to the surface of the sleeve rod (412), and a connector (414) is rotatably connected to the top end of the sleeve rod (412). A round hole (415) is opened on the surface of the connector (414).

8. The waste heat recovery and utilization device for coal gasification black water according to claim 7, characterized in that: A collar (416) is fixedly connected to the rod (411), and a pair of frames (417) are fixedly connected to the surface of the collar (416). A rod (418) is movably inserted into the pair of frames (417). A limit ring (419) is fixedly connected to one end of the rod (418), and a second spring (420) is sleeved on the rod (418). The two ends of the second spring (420) are fixedly connected to one side of the frame (417) and one side of the limit ring (419), respectively.

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