Quick dismounting structure at top of coal water slurry gasification furnace

Abstract

A quick dismounting structure at the top of a coal water slurry gasification furnace is arranged at the top of a furnace body of the coal water slurry gasification furnace, a top opening communicated with the inside of the coal water slurry gasification furnace is formed in the top of the furnace body, the quick dismounting structure comprises a furnace top plate, a combined burner, a mounting plate, a top coil pipe and a clamping mechanism, a mounting opening communicated with the top opening is formed in the middle of the furnace top plate, the combined burner is mounted on the upper side face of the mounting plate, the lower portion of the combined burner penetrates through the mounting plate so that the combined burner can be communicated with the lower portion of the mounting plate, and the top coil pipe is mounted on the lower side face of the mounting plate and combined with the lower portion of the combined burner. The mounting plate covers the upper side face of the furnace top plate so that the top coil pipe can be located on the upper portion in the coal water slurry gasification furnace through the mounting opening and the top opening, and the mounting plate is fixed to the furnace top plate in a clamped mode or separated from the furnace top plate in a clamped mode through a clamping mechanism. Therefore, the combined burner and the top coil pipe are convenient to disassemble and repair.

Description

Technical Field

[0001] The utility model relates to the technical field of water-coal slurry gasification furnaces, in particular to a quick disassembly structure of the top of a water-coal slurry gasification furnace. Background Art

[0002] A water-coal slurry gasifier is a device that converts water-coal slurry into synthesis gas. Water-coal slurry is a high-concentration coal-water mixture formed by mixing solid coal powder and water, and its solid content is usually between 45% and 65%. The water-coal slurry gasifier converts the coal in the water-coal slurry into synthesis gas by spraying the water-coal slurry into a high-temperature and high-pressure gasification reactor for a gasification reaction. At present, designers and manufacturers of water-coal slurry gasifiers are working hard to simplify the structure of the furnace body in order to reduce maintenance costs and improve production efficiency. Among them, the prior art with patent number 202023295658.X discloses an upper structure of a single-nozzle water-coal slurry water-cooled wall gasifier, which simplifies the furnace top structure, increases the continuous operation time of the gasifier, reduces the frequency of maintenance, eliminates the safety hazards caused by frequent start-up and shutdown of the furnace, and improves production efficiency. However, in actual use, the above-mentioned prior art still has the following shortcomings:

[0003] (1) The top coil (upper water-cooled wall) of the water-coal slurry gasifier is mainly used to control the top temperature of the water-coal slurry gasifier and the temperature around the main burner. It must be replaced every six months on average. The disassembly and installation of the main burner and the top coil are very cumbersome and time-consuming, and require the use of professional tools to operate.

[0004] (2) The top coil pipe is easily deformed due to thermal expansion displacement caused by temperature changes during feeding, which causes the deformed top coil pipe to collide with surrounding components during disassembly, causing damage and leakage.

[0005] Therefore, how to provide an improved furnace structure that is convenient for disassembly and installation of components such as top coils has become one of the technical problems to be solved urgently in this field. Utility Model Content

[0006] The technical problem to be solved by this technical solution is how to make the furnace top structure of the water-coal slurry gasifier easy to disassemble and install, so as to facilitate the maintenance and replacement of components such as the main burner and the top coil.

[0007] In order to solve the above technical problems, the present technical scheme provides a quick disassembly structure of the top of a water-coal slurry gasification furnace, which is arranged on the top of a furnace body of the water-coal slurry gasification furnace, and a top opening communicating with the interior of the water-coal slurry gasification furnace is provided on the top of the furnace body. The quick disassembly structure comprises: a furnace top plate, a combined burner, a mounting plate, a top coil pipe and a clamping mechanism, wherein the furnace top plate is covered and fixedly combined with the top opening, and a mounting opening communicating with the top opening is provided in the middle of the furnace top plate, the combined burner is mounted on the upper side surface of the mounting plate, and the lower part of the combined burner passes through the mounting plate so that the combined burner is communicated with the lower part of the mounting plate, the top coil pipe is mounted on the lower side surface of the mounting plate and combined with the lower part of the combined burner, the mounting plate is covered on the upper side surface of the furnace top plate so that the top coil pipe is located at the upper part of the water-coal slurry gasification furnace through the mounting opening and the top opening, and the mounting plate is clamped and fixed with the furnace top plate or disengaged and separated by the clamping mechanism. By operating the locking mechanism, the mounting plate together with the combined burner and the top coil can be quickly and easily removed from the furnace top plate on the top of the furnace body, so as to facilitate the repair or replacement of the combined burner or the top coil, and to facilitate the quick and easy installation of the above-mentioned components back to the top of the furnace body after maintenance, which not only saves manpower and material resources, but also shortens the maintenance time of the above-mentioned components, thereby improving production efficiency.

[0008] As another implementation of the technical solution, the locking mechanism is mainly composed of two locking parts symmetrically arranged on the lower side of the mounting plate and two engaging parts arranged in the furnace top plate, wherein two locking entrances are respectively opened on the upper side of the furnace top plate corresponding to the positions of the two locking parts, and the locking entrances are recessed downward to form a locking space inside the furnace top plate, and a side wall surface away from the mounting opening in the locking space is recessed in a direction away from the mounting opening to form a setting space inside the furnace top plate that is connected to the locking space, and the engaging part is movably installed in the setting space and can be operated to move and engage with or separate from the locking part inserted into the locking space.

[0009] As another implementation of the present technical solution, the clamping part is mainly composed of a strip-shaped combining plate arranged vertically and a strip-shaped clamping plate arranged horizontally, wherein the plate surfaces of the combining plates of the two clamping parts are parallel and the upper ends of the two combining plates are respectively fixedly combined with the two symmetrical sides of the lower side surface of the mounting plate, and the ends of the two clamping plates adjacent to the mounting openings are respectively fixedly combined with the lower ends of the two combining plates; and the engaging part is mainly composed of two telescopic rods, two coil springs, a strip-shaped engaging plate arranged vertically and a strip-shaped buckling plate arranged horizontally, wherein the two telescopic rods of the engaging part are horizontally parallel and spaced apart and arranged on the setting In the space, one end of the telescopic rod is fixedly combined with the side wall away from the installation opening in the setting space, the interlocking plate is set in the setting space and its side wall away from the installation opening is fixedly combined with the other end of the telescopic rod, the coil spring is sleeved on the telescopic rod and the two ends of the coil spring are respectively against the side wall of the setting space and the side wall of the interlocking plate, the snap plate is set in the setting space and its end away from the installation opening is fixedly combined with the upper end of the snap plate, and the snap part is moved horizontally in the setting space by operating the interlocking part so that the clamping part can be inserted into the clamping space, and the snap plate and the clamping plate can be vertically attached or horizontally separated. Accordingly, when the snap plate and the clamping plate are in a vertically attached state, the clamping part can be fixed in the clamping space by the interlocking part to fix the mounting plate together with the combined burner and the top coil pipe on the top of the furnace body; and when the snap plate and the clamping plate are in a horizontally separated state, the mounting plate together with the combined burner and the top coil pipe can be removed from the furnace top plate.

[0010] As another implementation of the technical solution, two operating holes are symmetrically opened on the upper side walls of the two setting spaces, and the engaging portion also includes an L-shaped operating plate, which is arranged in the operating hole and the end of the horizontal section of the L-shaped operating plate is fixedly combined with the side wall of the engaging plate, and the upper end of the vertical section of the L-shaped operating plate is exposed to the upper side of the furnace top plate through the operating hole, thereby, the engaging portion can be driven to move horizontally by sliding the L-shaped operating plate, so that the engaging portion can engage or separate with the engaging portion.

[0011] As another implementation of the technical solution, the clamping part also includes two tension springs and a strip-shaped clamping block, wherein the side wall of the clamping plate adjacent to the installation opening is recessed in a direction away from the installation opening to form a horizontal embedding groove in the clamping plate, one end of the two tension springs is respectively arranged at two sides of the bottom of the embedding groove, the clamping block is arranged in the embedding groove and connected to the other ends of the two tension springs, the clamping block can be pushed in and out of the embedding groove by external force, the bottom of the embedding groove is provided with an embedding opening communicating with the setting space, the side of the embedding plate facing the embedding opening is protruded with a clamping block corresponding to the embedding opening, the wall surface corresponding to the clamping block in the clamping space is recessed in the direction of the installation opening to form a clamping groove, and when the clamping part is inserted into the clamping space, the embedding block of the embedding part is inserted into the embedding opening and pushes against the embedding block to be embedded in the clamping groove. Accordingly, the clamping part can be multiple-clamped by the embedding part to increase the stability of the clamping combination.

[0012] As another implementation of the technical solution, the longitudinal cross-sectional profile of the side of the engaging block facing the engaging groove is in a semicircular arc shape. Accordingly, when the engaging state of the engaging portion is released and lifted up, the engaging block is easily removed from the engaging groove.

[0013] As another implementation of the technical solution, the outer side of the top tube is covered with a protective shell cover, thereby protecting and limiting the top tube.

[0014] As another implementation of the technical solution, the lower side of the furnace top plate is provided with several support parts around the installation opening, wherein the support part is mainly composed of a vertically arranged connecting plate and a horizontally arranged supporting plate, the upper end of the connecting plate is fixedly combined with the lower side of the furnace top plate adjacent to the installation opening, the lower end of the connecting plate is fixedly combined with one end of the supporting plate so that the other end of the supporting plate is arranged toward the vertical extension line where the center of the installation opening is located, and when the top coil enters the water-coal slurry gasification furnace, the protective shell covering the outer side of the top coil is surrounded by several of the connecting plates and supported by several of the supporting plates. In this way, not only the stability of the top coil and the protective shell covering can be increased, but also when the water-coal slurry gasification furnace is charged with materials and the temperature in the furnace changes greatly, it can limit the top coil that is thermally expanded and displaced, thereby preventing the top coil and the protective shell covering from deformation and displacement.

[0015] As another implementation of the technical solution, a buffer pad is provided on one side of the connecting plate toward the vertical extension line of the center of the installation port, and an anti-skid pad is provided on the upper side of the supporting plate. Accordingly, the buffer pad can absorb the lateral impact force of the top plate pipe during thermal expansion displacement, and the anti-skid pad can increase the friction with the protective shell cover to indirectly limit the displacement of the top plate pipe.

[0016] As another implementation of the technical solution, two handles are provided on two symmetrical sides of the side of the mounting plate to facilitate the disassembly and assembly of the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an embodiment of the quick disassembly structure of the water-coal slurry gasification furnace top of the utility model;

[0018] Figure 2 It is a schematic diagram of a furnace top plate in one embodiment of the utility model;

[0019] Figure 3 is a schematic diagram of a locking mechanism in an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of another embodiment of the quick disassembly structure of the water-coal slurry gasification furnace top of the utility model.

[0021] Explanation of symbols in the accompanying drawings: 1 furnace top plate; 10 clamping entrance; 11 clamping space; 111 clamping groove; 12 setting space; 13 operation hole; 14 installation opening; 2 combined burner; 3 installation plate; 31 handle; 4 top coil; 5 clamping mechanism; 50 clamping part; 501 combining plate; 502 clamping plate; 503 embedding groove; 504 embedding opening; 505 tension spring; 506 clamping block; 51 embedding part; 511 telescopic rod; 512 coil spring; 513 embedding plate; 514 snap-fit ​​plate; 515 embedding block; 516 L-shaped operation panel; 6 protective shell cover; 7 support part; 71 connecting plate; 711 buffer pad; 72 support plate; 721 anti-slip pad. DETAILED DESCRIPTION

[0022] The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

[0023] In the context of this specification, any two or more embodiments of the present invention may be arbitrarily combined, and the technical solution thus formed belongs to part of the original disclosure of this specification and also falls within the protection scope of the present invention.

[0024] like Figure 1 The figure shows a schematic diagram of a specific embodiment of the quick disassembly structure of the water-coal slurry gasification furnace top of the utility model. The quick disassembly structure of the water-coal slurry gasification furnace top (hereinafter referred to as the quick disassembly structure) is arranged on the top of the furnace body of the water-coal slurry gasification furnace (not shown in the figure), and a top opening communicating with the inside of the water-coal slurry gasification furnace is opened on the top of the furnace body. Since the water-coal slurry gasification furnace is a prior art, that is, the existing furnace body structure is applied, and the top of the furnace body is mostly a vault structure, and the top opening is opened in the middle of the top of the furnace body, the above structures are all conventional structures of the existing water-coal slurry gasification furnace, and therefore, they will not be explained in the following description and the attached drawings.

[0025] The technical focus of the utility model is that the quick disassembly structure includes a furnace top plate 1, a combined burner 2, a mounting plate 3, a top coil 4 and a clamping mechanism 5. The furnace top plate 1 shown in the attached figure is a rectangular body, but it can also be a plate body of other shapes. The utility model does not limit the shape of the furnace top plate 1. The furnace top plate 1 is covered and fixedly combined with the top opening of the water-coal slurry gasification furnace, combined with Figure 2 As shown, a mounting opening 14 communicating with the top opening is provided in the middle of the furnace top plate 1. The mounting opening 14 is shown to be circular in the figure, but the utility model does not limit the shape of the mounting opening 14. The combined burner 2 is mounted on the upper side of the mounting plate 3, and the lower part of the combined burner 2 penetrates the mounting plate 3 so that the combined burner 2 is communicated with the lower part of the mounting plate 3. The top coil 4 is mounted on the lower side of the mounting plate 3 and combined with the lower part of the combined burner 2. The mounting plate 3 is covered on the upper side of the furnace top plate 1 so that the top coil 4 is located at the upper part of the water-coal slurry gasifier through the mounting opening 14 and the top opening, and the mounting plate 3 is clamped and fixed with the furnace top plate 1 or released and separated by the clamping mechanism 5.

[0026] Specifically, combined Figure 3 As shown, the locking mechanism 5 is mainly composed of two locking parts 50 arranged on two symmetrical sides of the lower side of the mounting plate 3 and two embedded parts 51 arranged in the furnace top plate 1. Figure 2 As shown, two snap-in ports 10 are respectively provided on the upper side of the furnace top plate 1 at positions corresponding to the two snap-in portions 50, and the snap-in ports 10 are recessed downward to form a snap-in space 11 inside the furnace top plate 1, and a side wall in the snap-in space 11 away from the mounting port 14 is recessed in a direction away from the mounting port 14 to form a setting space 12 in the furnace top plate 1 that communicates with the snap-in space 11. The engaging portion 51 is movably installed in the setting space 12 and can be operated to move and engage with or separate from the snap-in portion 50 inserted into the snap-in space 11.

[0027] Specifically, the clamping part 50 is mainly composed of a strip-shaped combining plate 501 arranged vertically and a strip-shaped clamping plate 502 arranged horizontally. The plate surfaces of the combining plates 501 of the two clamping parts 50 are parallel and the upper ends of the two combining plates 501 are respectively fixedly combined with two symmetrical sides of the lower side of the mounting plate 3, and the ends of the two clamping plates 502 near the mounting opening 14 are respectively fixedly combined with the lower ends of the two combining plates 501. The fitting part 51 is mainly composed of two telescopic rods 511, two coil springs 512, a strip-shaped clamping plate 513 arranged vertically and a strip-shaped buckle plate 514 arranged horizontally. Among them, the two telescopic rods 511 of the fitting part 51 are horizontally parallel and spaced apart and arranged in the setting space 12, one end of the telescopic rod 511 is fixedly combined with the side wall in the setting space 12 away from the installation opening 14, the fitting plate 513 is arranged in the setting space 12 and its side wall away from the installation opening 14 is fixedly combined with the other end of the telescopic rod 511, the coil spring 512 is sleeved on the telescopic rod 511 and the two ends of the coil spring 512 are respectively against the side wall of the setting space 12 and the side wall of the fitting plate 513, and the buckle plate 514 is arranged in the setting space 12 and its end away from the installation opening 14 is fixedly combined with the upper end of the fitting plate 513. By operating the engaging portion 51 to move horizontally in the setting space 12, the locking portion 50 can be inserted into the locking space 11, and the snap-fit ​​plate 514 and the locking plate 502 can be fitted together up and down or separated horizontally. When the snap-fit ​​plate 514 and the locking plate 502 are in a state of fitting together up and down, the engaging portion 51 can fix the locking portion 50 in the locking space 11 and fix the mounting plate 3 together with the combined burner 2 and the top coil pipe 4 to the top of the furnace body; and when the snap-fit ​​plate 514 and the locking plate 502 are in a state of being separated horizontally, the mounting plate 3 together with the combined burner 2 and the top coil pipe 4 can be removed from the furnace top plate 1. In addition, two operating holes 13 are symmetrically opened on the upper side walls of the two setting spaces 12, and the engaging portion 51 also includes an L-shaped operating plate 516, which is arranged in the operating hole 13 and the end of the horizontal section of the L-shaped operating plate 516 is fixedly combined with the side wall of the engaging plate 513, and the upper end of the vertical section of the L-shaped operating plate 516 is exposed to the upper side surface of the furnace top plate 1 through the operating hole 13, thereby the engaging portion 51 can be driven to move horizontally by sliding the L-shaped operating plate 516, so that the engaging portion 51 can engage or separate the engaging portion 50.

[0028] Furthermore, the engaging portion 50 further includes two tension springs 505 and a strip-shaped engaging block 506. The side wall of the engaging plate 502 adjacent to the mounting opening 14 is recessed in a direction away from the mounting opening 14 to form a horizontal embedding groove 503 in the engaging plate 502. One end of the two tension springs 505 is respectively disposed at two sides of the bottom of the embedding groove 503. The engaging block 506 is disposed in the embedding groove 503 and connected to the other ends of the two tension springs 505. The engaging block 506 can be pushed in and out of the embedding groove 503 by external force. The bottom of the embedding groove 503 is provided with a The embedding opening 504 communicates with the setting space 12, and the embedding plate 513 faces the embedding opening 504 and is provided with an embedding block 515 protruding from the side corresponding to the embedding opening 504. The wall surface corresponding to the embedding block 506 in the engaging space 11 is recessed toward the installation opening 14 to form an engaging groove 111. When the engaging portion 50 is inserted into the engaging space 11, the embedding block 515 of the engaging portion 51 is inserted into the embedding opening 504 and abuts against the embedding block 506 to be embedded in the engaging groove 111. In addition, the longitudinal cross-sectional profile of the engaging block 506 facing the side of the engaging groove 111 can be semicircular, so that when the engaging state of the engaging portion 50 is released and lifted up, it is convenient for the engaging block 506 to be moved out of the engaging groove 111. Through the above structure, the engaging portion 50 can be multiple-fastened by the embedding portion 51 to increase the stability of the fastened combination.

[0029] Combination Figure 4 FIG. 2 is another embodiment of the present invention. The outer side of the top tube 4 may be covered with a protective shell 6 to protect and limit the top tube 4 . The upper end of the connecting plate 71 is adjacent to the mounting opening 14 and is fixedly coupled to the lower side of the furnace top plate 1, and the lower end of the connecting plate 71 is fixedly coupled to one end of the supporting plate 72 so that the other end of the supporting plate 72 is arranged toward the vertical extension line of the center of the mounting opening 14. When the top coil 4 enters the water-coal slurry gasification furnace, the protective shell cover 6 wrapped around the outside of the top coil 4 is surrounded by several of the connecting plates 71 and supported by several of the supporting plates 72. This not only increases the stability of the top coil 4 and the protective shell cover 6, but also limits the top coil 4 that is thermally expanded and displaced when the water-coal slurry gasification furnace is charged with materials, thereby preventing the top coil 4 and the protective shell cover 6 from deformation and displacement. In addition, a buffer pad 711 may be provided on one side of the vertical extension line of the connecting plate 71 toward the center of the installation port 14, and an anti-slip pad 721 may be provided on the upper side of the support plate 72. The buffer pad 711 can absorb the lateral impact force of the top plate pipe 4 during thermal expansion and displacement, and the anti-slip pad 721 can increase the friction with the protective shell cover 6, thereby indirectly limiting the displacement of the top plate pipe 4.

[0030] In addition, two handles 31 may be provided on the symmetrical sides of the upper side of the mounting plate 3 to facilitate the disassembly and assembly of the mounting plate 3. A sealing component (not shown) and / or a fitting structure of a groove and a convex portion (not shown) may be provided around the joint between the upper side of the furnace top plate and the lower side of the mounting plate to increase the sealing performance of the combination. Since the corresponding sealing structure is a commonly used technical means in the art, it will not be described in detail in the present utility model.

[0031] To sum up, the quick disassembly structure of the utility model can quickly and easily disassemble the mounting plate together with the combined burner and the top coil from the furnace top plate on the top of the furnace body by operating the locking mechanism, so as to facilitate the repair or replacement of the combined burner or the top coil, and to quickly and easily install the above-mentioned components back to the top of the furnace body after maintenance, which not only saves manpower and material resources, but also shortens the maintenance time of the above-mentioned components, thereby improving production efficiency.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent changes made using the patent concept of the present invention should all fall within the patent protection scope of the present invention.

Claims

1. A quick disassembly structure of a water-coal slurry gasification furnace top, arranged on the top of the furnace body of the water-coal slurry gasification furnace, characterized in that: The top of the furnace body is provided with a top opening which is communicated with the interior of the water-coal slurry gasification furnace. The quick disassembly structure includes: a furnace top plate, a combined burner, a mounting plate, a top coil pipe and a clamping mechanism. The furnace top plate is covered and fixedly combined with the top opening, and a mounting opening which is communicated with the top opening is provided in the middle of the furnace top plate. The combined burner is mounted on the upper side surface of the mounting plate, and the lower part of the combined burner passes through the mounting plate so that the combined burner is communicated with the lower part of the mounting plate. The top coil pipe is mounted on the lower side surface of the mounting plate and combined with the lower part of the combined burner. The mounting plate is covered on the upper side surface of the furnace top plate so that the top coil pipe passes through the mounting opening and the top opening and is located in the upper part of the water-coal slurry gasification furnace, and the mounting plate is clamped and fixed with the furnace top plate or disengaged and separated by the clamping mechanism.

2. The quick disassembly structure according to claim 1, characterized in that: The locking mechanism is mainly composed of two locking parts symmetrically arranged on both sides of the lower side of the mounting plate and two engaging parts arranged in the furnace top plate. Two locking entrances are respectively provided on the upper side of the furnace top plate corresponding to the positions of the two locking parts. The locking entrances are recessed downward to form a locking space inside the furnace top plate. A side wall in the locking space away from the mounting opening is recessed in a direction away from the mounting opening to form a setting space in the furnace top plate that communicates with the locking space. The engaging part is movably installed in the setting space and can be operated to move and engage with or separate from the locking part inserted into the locking space.

3. The quick disassembly structure according to claim 2, characterized in that: The clamping part is mainly composed of a strip-shaped combining plate arranged vertically and a strip-shaped clamping plate arranged horizontally. The two combining plates are parallel and their upper ends are fixedly combined with the two symmetrical sides of the lower side of the mounting plate respectively. The ends of the two clamping plates adjacent to the mounting opening are fixedly combined with the lower ends of the two combining plates respectively. The fitting part is mainly composed of two telescopic rods, two coil springs, a strip-shaped fitting plate arranged vertically and a strip-shaped buckle plate arranged horizontally. The two telescopic rods of the fitting part are horizontally parallel and spaced apart and arranged in the setting space. One end of the telescopic rod is fixedly combined with the setting space The locking plate is arranged in the setting space and its side wall away from the mounting opening is fixedly combined with the other end of the telescopic rod. The coil spring is sleeved on the telescopic rod and the two ends of the coil spring respectively abut against the side wall of the setting space and the side wall of the locking plate. The buckle plate is arranged in the setting space and its end away from the mounting opening is fixedly combined with the upper end of the buckle plate. The locking portion is moved horizontally in the setting space by operating the locking portion so that the locking portion can be inserted into the locking space and the buckle plate and the locking plate can be fitted up and down or separated horizontally.

4. The quick disassembly structure according to claim 3, characterized in that: Two operation holes are symmetrically provided on the upper side walls of the two setting spaces, and the fitting part also includes an L-shaped operation plate, which is arranged in the operation hole and the end of the horizontal section of the L-shaped operation plate is fixedly combined with the side wall of the fitting plate, and the upper end of the vertical section of the L-shaped operation plate is exposed to the upper side surface of the furnace top plate through the operation hole, and the fitting part is driven to move horizontally by sliding the L-shaped operation plate.

5. The quick disassembly structure according to claim 3, characterized in that: The two cams are connected by two springs to form a circle, the two cams being connected by a spring to form a circle, the two cams being connected by a spring to form a circle.

6. The quick disassembly structure according to claim 5, characterized in that: The longitudinal cross-sectional profile of the side surface of the engaging block facing the engaging groove is in a semicircular arc shape.

7. The quick disassembly structure according to claim 1, characterized in that: The outer side of the top coil pipe is covered with a protective shell cover.

8. The quick disassembly structure according to claim 7, characterized in that: The lower side of the furnace top plate is provided with several supporting parts around the installation port, and the supporting parts are mainly composed of a vertically arranged connecting plate and a horizontally arranged supporting plate. The upper end of the connecting plate is adjacent to the installation port and fixedly combined with the lower side of the furnace top plate, and the lower end of the connecting plate is fixedly combined with one end of the supporting plate so that the other end of the supporting plate is arranged toward the vertical extension line of the center of the installation port. When the top plate pipe enters the water-coal slurry gasification furnace, the protective shell cover covering the outer side of the top plate pipe is surrounded by several of the connecting plates and supported by several of the supporting plates.

9. The quick disassembly structure according to claim 8, characterized in that: A buffer pad is arranged on one side of the connecting plate toward a vertical extension line where the center of the installation opening is located, and an anti-slip pad is arranged on the upper side of the supporting plate.

10. The quick disassembly structure according to claim 1, characterized in that: Two handles are arranged on two symmetrical sides of the mounting plate.

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