Deslagging heat exchange device and deslagging system

Abstract

The utility model relates to carbonaceous matter reactor technical field discloses a deslag heat exchange device and deslag system, include: protective cover, including cylinder and lid, the top wall of cylinder has opening, the lid with top wall is detachably connected and covers opening, the lid is through and is provided with mounting hole, heat exchange pipeline is connected with protective cover arrangement, heat exchange pipeline includes intercommunication setting cylinder pipeline and lid pipeline, cylinder pipeline is arranged in cylinder, lid pipeline is arranged in lid. The utility model passes through the heat exchange medium in the heat exchange pipeline and passes in, makes heat exchange medium to be able to absorb the heat that heat exchange pipeline and protective cover delivered, realizes heat recovery utilization while, controlled protective cover's temperature rise, avoids the deformation and burning loss of protective cover due to high temperature, and avoids other components to be damaged by the influence of protective cover high temperature, effectively improves the thermal efficiency and trouble-free operation cycle of deslag system.

Description

Technical Field

[0001] This utility model relates to the field of carbonaceous material reactor technology, specifically to a slag discharge heat exchange device and a slag discharge system. Background Technology

[0002] The carbonaceous material conversion and reforming reactor uses carbonaceous materials to convert and reform product gas. The inorganic residue of carbonaceous materials enters the slag storage tank in a molten liquid state. Under the stable control of the high-temperature flame of the slag temperature regulator, it is discharged into the quenching zone through the slag discharge controller. After being quenched by quenching water into solid small particles, it is transferred out of the reactor.

[0003] In existing technologies, a protective cover welded from steel plates is used inside the slag discharge control section of the reactor slag discharge system to shield the molten liquid slag and the flame from the slag temperature regulator from high-temperature heat radiation to the container shell and partition support plate of the slag discharge control section, thereby protecting these components. However, the protective cover is prone to deformation or burn-out due to high temperatures, causing deterioration in the working conditions of the container shell and partition support plate, affecting the trouble-free operation cycle of the slag discharge system, and also resulting in heat waste. Utility Model Content

[0004] In view of this, the present invention provides a slag discharge heat exchange device and a slag discharge system to solve the problem that the protective cover in the prior art is easily deformed or burned due to high temperature, which causes the working condition of the container shell and the partition support plate of the slag discharge control section to deteriorate, affecting the fault-free operation cycle of the slag discharge system, and also causes heat waste.

[0005] In a first aspect, this utility model provides a slag discharge heat exchange device, comprising: a protective cover, including a cylinder and a cover, wherein the top wall of the cylinder has an opening, the cover is detachably connected to the top wall and covers the opening, and the cover is provided with a through mounting hole; and a heat exchange pipe connected to the protective cover, wherein the heat exchange pipe includes a cylinder pipe and a cover pipe that are connected in communication, the cylinder pipe is coiled on the cylinder, and the cover pipe is coiled on the cover.

[0006] Beneficial effects: By introducing a heat exchange medium into the heat exchange pipe, the heat exchange medium can absorb the heat transferred by the heat exchange pipe and the protective cover, realizing heat recovery and utilization. At the same time, it controls the temperature rise of the protective cover itself, avoids deformation and burn-out of the protective cover due to high temperature, and avoids damage to other components due to the high temperature of the protective cover. It effectively improves the thermal efficiency and trouble-free operation cycle of the slag discharge system.

[0007] In one optional embodiment, a medium inlet pipe is connected to the first end of the cylindrical pipe, the second end of the cylindrical pipe is connected to the first end of the cover pipe, and a medium outlet pipe is connected to the second end of the cover pipe.

[0008] Beneficial effects: By setting up medium inlet pipes and medium outlet pipes, it is convenient for the heat exchange medium to enter and exit the cylinder pipes and cover pipes.

[0009] In one optional embodiment, the second end of the cylindrical pipe is connected to the first end of the cover pipe via a first connector, and the second end of the cover pipe is connected to the medium outlet pipe via a second connector.

[0010] Beneficial effects: The first connector connects the cylindrical pipe and the cover pipe, facilitating their assembly and disassembly; the second connector connects the cover pipe and the medium outlet pipe, facilitating their coordinated installation.

[0011] In one optional embodiment, the top wall has a first through hole, the cover has a second through hole, and the protective cover further includes a fastener. The first through hole and the second through hole are connected, and the fastener passes through the first through hole and the second through hole and connects the top wall and the cover.

[0012] Beneficial effects: The top wall and the cover are detachably connected by fasteners, which facilitates the disassembly and assembly of the cover, thereby facilitating the inspection and maintenance of the cover and other components installed on it.

[0013] In one alternative embodiment, the cover has a plurality of third through holes surrounding the mounting hole.

[0014] Beneficial effect: By setting a third through hole, it is easier to install the cover with other components.

[0015] In one optional embodiment, the cylinder further includes a sidewall, one end of which is connected to the outer periphery of the top wall. The cylinder pipe includes a sidewall pipe and a top wall pipe that are connected in communication. The sidewall pipe is coiled on the sidewall, and the top wall pipe is coiled on the top wall.

[0016] Beneficial effects: Heat exchange pipes are installed on the side walls, top walls, and cover of the protective cover to improve the heat exchange effect with the protective cover.

[0017] In one alternative embodiment, the sidewall is provided with a plurality of mating holes.

[0018] Beneficial effect: By setting mating holes, it is easy to install the side wall with other components.

[0019] In one alternative embodiment, the protective cover further includes a support lug connected to the side wall and disposed at the end of the side wall away from the top wall.

[0020] Beneficial effect: By setting up the support lugs, it is easy to position and install the protective cover and other components in the slag discharge system.

[0021] Secondly, this utility model also provides a slag discharge system, including: an outer shell; a partition structure connected to the outer shell and dividing the interior of the outer shell into a slag storage pool and a slag discharge pool, wherein the partition structure is provided with a connecting hole; the aforementioned slag discharge heat exchange device is disposed in the slag discharge pool, and the slag storage pool is connected to the mounting hole through the connecting hole.

[0022] In one optional embodiment, the slag discharge system further includes a slag temperature regulating structure disposed between the partition structure and the cover, the slag temperature regulating structure being arranged around the connecting hole and the mounting hole.

[0023] Beneficial effect: By setting up a slag temperature regulation structure, the temperature of the molten liquid slag flowing from the slag storage tank to the slag discharge tank can be controlled. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a front view (with partial cross-section) of a slag discharge heat exchange device according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 The top view of the slag discharge heat exchange device shown;

[0027] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0028] Figure 4 This is a front view (with partial cross-section) of a slag discharge system according to an embodiment of the present utility model;

[0029] Figure 5 for Figure 4 A magnified view of part B in the diagram.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Protective cover; 11. Cylinder body; 111. Top wall; 1111. First through hole; 112. Side wall; 1121. Mating hole; 12. Cover body; 121. Mounting hole; 122. Second through hole; 123. Third through hole; 13. Fastener; 14. Support lug; 2. Heat exchange pipes; 21. Cylinder pipes; 211. Side wall pipes; 212. Top wall pipes; 22. Cover pipes; 23. Medium inlet pipe; 24. Medium outlet pipe; 25. First connector; 26. Second connector; 10. Slag discharge heat exchange device; 20. Outer shell; 2 01. Slag storage tank; 202. Slag discharge tank; 203. Slag storage section shell; 204. Slag discharge section shell; 205. Support; 30. Separation structure; 301. Connecting hole; 302. Separation support plate; 303. Slag discharge controller; 40. Slag temperature adjustment structure; 401. Fuel inlet; 402. Combustion aid inlet; 50. Ignition assembly; 60. Flame monitoring assembly; 70. Differential pressure adjustment assembly; 80. Medium inlet pipe; 90. Medium outlet pipe; 1000. Molten liquid slag; 2000. Quenching agent; 3000. Heat exchange medium. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0034] According to an embodiment of the present invention, in one aspect, a slag discharge heat exchange device 10 is provided, such as... Figures 1 to 3 As shown, it includes: a protective cover 1, which includes a cylindrical body 11 and a cover 12. The top wall 111 of the cylindrical body 11 has an opening. The cover 12 is detachably connected to the top wall 111 and covers the opening. The cover 12 is provided with a through mounting hole 121. A heat exchange pipe 2 is connected to the protective cover 1. The heat exchange pipe 2 includes a cylindrical pipe 21 and a cover pipe 22 that are connected to each other. The cylindrical pipe 21 is coiled on the cylindrical body 11, and the cover pipe 22 is coiled on the cover 12.

[0035] The slag discharge heat exchange device 10 of this embodiment uses a heat exchange medium 3000 to be introduced into the heat exchange pipe 2. The heat exchange medium 3000 can absorb the heat transferred by the heat exchange pipe and the protective cover 1, realizing heat recovery and utilization. At the same time, it controls the temperature rise of the protective cover 1 itself, avoids deformation and burn-out of the protective cover 1 due to high temperature, and avoids damage to other components due to the high temperature of the protective cover 1. This effectively improves the thermal efficiency and trouble-free operation cycle of the slag discharge system.

[0036] It is worth noting that in this embodiment, the cylindrical body 11 is connected between the coiled cylindrical pipes 21, and the cover body 12 is connected between the coiled cover pipes 22. The cylindrical pipes 21 and the cover pipes 22 are connected to form a heat exchange pipe 2. Therefore, when the heat exchange medium 3000 is introduced into the heat exchange pipe 2, heat exchange can be carried out on both the cylindrical body 11 and the cover body 12, thereby improving the heat utilization rate and reducing the thermal impact of high temperature on the protective cover 1.

[0037] In addition, the cover 12 is usually used to cooperate with components such as the slag discharge controller 303 and the slag temperature adjustment structure 40. Therefore, the cover 12 and the cylinder 11 are detachable, which makes it easier to inspect and maintain the cover 12, the slag discharge controller 303 and the slag temperature adjustment structure 40.

[0038] In one embodiment, such as Figure 1 and Figure 2 As shown, a medium inlet pipe 23 is connected to the first end of the cylindrical pipe 21, and a medium outlet pipe 24 is connected to the second end of the cover pipe 22. By setting the medium inlet pipe 23 and the medium outlet pipe 24, the heat exchange medium 3000 can be easily introduced and discharged from the cylindrical pipe 21 and the cover pipe 22.

[0039] Specifically, in one embodiment, such as Figure 1 and Figure 2 As shown, the second end of the cylindrical pipe 21 is connected to the first end of the cover pipe 22 via a first connector 25, and the second end of the cover pipe 22 is connected to the medium outlet pipe 24 via a second connector 26. The first connector 25 connects the cylindrical pipe 21 and the cover pipe 22, facilitating their assembly and disassembly. The second connector 26 connects the cover pipe 22 and the medium outlet pipe 24, facilitating their proper fit.

[0040] In one embodiment, such as Figure 2As shown, the top wall 111 has a first through hole 1111, and the cover 12 has a second through hole 122. The protective cover 1 also includes a fastener 13. The first through hole 1111 and the second through hole 122 are connected. The fastener 13 passes through the first through hole 1111 and the second through hole 122 and connects the top wall 111 and the cover 12. The top wall 111 and the cover 12 are detachably connected by the fastener 13, which facilitates the disassembly and assembly of the cover 12, thereby facilitating the inspection and maintenance of the cover 12 and other components installed on the cover 12.

[0041] Specifically, in one embodiment, such as Figure 2 and Figure 3 As shown, a number of first through holes 1111 are provided at intervals along the circumferential direction on the inner peripheral edge of the top wall 111 near the mounting hole 121, and a number of second through holes 122 are provided at intervals along the circumferential direction on the outer peripheral edge of the cover 12. The number of first through holes 1111 and the number of second through holes 122 are connected in a one-to-one correspondence. A number of fasteners 13 are also provided, and each fastener 13 passes through a corresponding first through hole 1111 and second through hole 122 to connect and fix the cover 12 and the top wall 111 in the circumferential direction, so as to ensure the stability and reliability of the installation of the cover 12.

[0042] In one embodiment, such as Figure 2 As shown, the cover 12 has several third through holes 123 arranged around the mounting hole 121. The third through holes 123 facilitate the installation of the cover 12 with other components. Specifically, the third through holes 123 enable the installation of the slag temperature regulating structure 40 with the cover 12. Furthermore, the mounting hole 121 is located at the center of the cover 12, and the third through holes 123 are located on the cover 12 and are arranged in several circles (e.g., two circles) around the center of the cover 12.

[0043] In one embodiment, such as Figure 1 As shown, the cylinder 11 also includes a side wall 112, one end of which is connected to the outer periphery of the top wall 111. The cylinder pipe 21 includes a side wall pipe 211 and a top wall pipe 212 that are connected together. The side wall pipe 211 is coiled on the side wall 112, and the top wall pipe 212 is coiled on the top wall 111. Heat exchange pipes 2 are provided on the side wall 112, the top wall 111, and the cover 12 of the protective cover 1 to improve the heat exchange effect with the protective cover 1.

[0044] It is worth noting that the protective cover 1 is formed by processing a metal diaphragm, and the heat exchange pipe 2 is formed by winding a metal tube. Specifically, the cover pipe 22 formed by winding a metal tube is fused and welded to the diaphragm of the cover body 12 to form a disc-shaped assembly; the side wall pipe 211 formed by winding a metal tube and the diaphragm of the side wall 112 are fused and welded together; and the top wall pipe 212 formed by winding a metal tube and the diaphragm of the top wall 111 are fused and welded together to form a cylindrical assembly.

[0045] Furthermore, the medium inlet pipe 23, the side wall pipe 211, and the top wall pipe 212 can be formed by winding a single metal pipe. Alternatively, multiple metal pipes can be connected by welding or other connection methods before being wound, as long as they can form a tubular channel that is internally connected and internally isolated.

[0046] It is understandable that the medium inlet pipe 23, side wall pipe 211, top wall pipe 212, cover pipe 22 and medium outlet pipe 24 are connected to form an internally connected and internally isolated tubular channel, which is used to flow the heat exchange medium 3000.

[0047] It should be noted that the heat exchange medium 3000 can be either gaseous or liquid.

[0048] In one embodiment, such as Figure 1 As shown, the side wall 112 is provided with a number of mating holes 1121. By providing mating holes 1121, it is convenient to install the side wall 112 with other components (such as ignition assembly 50, flame monitoring assembly 60, differential pressure regulating assembly 70, temperature measuring element, etc.).

[0049] In one embodiment, such as Figure 1 and Figure 2 As shown, the protective cover 1 also includes a support lug 14, which is connected to the side wall 112 and is located at the end of the side wall 112 away from the top wall 111. By providing the support lug 14, it is convenient to position and install the protective cover 1 with other components (such as the outer casing 20) in the slag discharge system.

[0050] It is worth noting that the slag discharge heat exchange device 10 in this embodiment is mainly applicable to fixed bed and mixed bed carbonaceous material gasification and conversion reactors with liquid slag discharge.

[0051] According to an embodiment of the present invention, another aspect also provides a slag discharge system, such as... Figure 4 and Figure 5 As shown, it includes: an outer shell 20; a partition structure 30 connected to the outer shell 20 and dividing the interior of the outer shell 20 into a slag storage tank 201 and a slag discharge tank 202, and the partition structure 30 is provided with a connecting hole 301; the aforementioned slag discharge heat exchange device 10 is installed in the slag discharge tank 202, and the slag storage tank 201 is connected to the mounting hole 121 through the connecting hole 301.

[0052] Furthermore, in one embodiment, such as Figure 4 As shown, the partition structure 30 includes a partition support plate 302 and a slag discharge controller 303. The slag discharge controller 303 is disposed in the middle of the partition support plate 302 and has a connecting hole 301.

[0053] Furthermore, such as Figure 4 As shown, the outer shell 20 includes a slag storage section shell 203 and a slag discharge section shell 204. The slag storage section shell 203 is connected to the upper part of the partition support plate 302, and the slag discharge section shell 204 is connected to the lower part of the partition support plate 302. The upper end face of the partition support plate 302 and the slag discharge controller 303 and the inner side of the slag storage section shell 203 form a slag storage pool 201 through a refractory lining. The lower end face of the partition support plate 302 and the slag discharge controller 303 and the slag discharge section shell 204 enclose the slag discharge pool 202.

[0054] In one embodiment, such as Figure 4 and Figure 5 As shown, the slag discharge system also includes a slag temperature regulating structure 40, which is disposed between the partition structure 30 and the cover 12, and surrounds the connecting hole 301 and the mounting hole 121. By setting the slag temperature regulating structure 40, the temperature of the molten liquid slag 1000 flowing from the slag storage tank 201 to the slag discharge tank 202 can be controlled.

[0055] Specifically, in one embodiment, such as Figure 4 As shown, the upper end of the slag discharge controller 303 is inserted into the partition support plate 302, and the lower end of the slag discharge controller 303 extends into the protective cover 1 through the mounting hole 121. The slag temperature adjustment structure 40 is arranged around the part of the slag discharge controller 303 located between the partition support plate 302 and the cover 12.

[0056] Furthermore, in one embodiment, such as Figure 4 As shown, the slag temperature regulating structure 40 has a fuel inlet 401 and a combustion improver inlet 402. Fuel is fed into the slag temperature regulating structure 40 through the fuel inlet 401, and combustion improver is fed into the slag temperature regulating structure 40 through the combustion improver inlet 402. The fuel and combustion improver burn within the slag temperature regulating structure 40 to generate a high-temperature flame, thereby controlling the temperature of the molten liquid slag 1000 in the slag storage pool 201. Specifically, the slag temperature regulating structure 40 is a slag temperature regulator.

[0057] In one embodiment, such as Figure 4 As shown, the slag discharge system also includes an ignition component 50, a flame monitoring component 60, and a differential pressure regulating component 70. The ignition component 50, the flame monitoring component 60, and the differential pressure regulating component 70 are all installed on the slag discharge section housing 204 and extend into the protective cover 1 through the mating hole 1121 respectively.

[0058] It is worth noting that the differential pressure adjustment component 70 can adjust the differential pressure between the upper and lower sides of the partition structure 30, so that the molten liquid slag 1000 in the slag storage tank 201 can be stably discharged into the slag discharge tank 202, and after passing through the protective cover 1, it enters the quenching agent 2000 for quenching.

[0059] It should be further explained that the slag discharge heat exchange device 10 absorbs the high-temperature flame generated by the combustion of fuel and combustion aid through the slag temperature regulating structure 40, and the high-temperature radiant heat of the molten liquid slag 1000 before it is discharged by the slag discharge controller 303 into the quenching agent 2000. This shields the high-temperature radiant heat from being transferred to the slag storage section shell 203 and the partition support plate 302, thereby reducing the thermal damage to the slag storage section shell 203 and the partition support plate 302.

[0060] In one embodiment, such as Figure 4 As shown, the slag discharge system also includes a medium inlet pipe 80 and a medium outlet pipe 90. Both the medium inlet pipe 80 and the medium outlet pipe 90 are installed through the shell wall of the slag discharge section shell 204. The medium inlet pipe 80 is connected to the medium inlet pipe 23, and the medium outlet pipe 90 is connected to the medium outlet pipe 24.

[0061] In one embodiment, such as Figure 4 As shown, a support 205 is connected to the inner wall of the slag discharge section shell 204, and the lug 14 is connected to the support 205 through a connector.

[0062] In one embodiment, such as Figure 1 and Figure 4 As shown, the outer diameter D1 of the cylindrical assembly is smaller than the inner diameter D2 of the slag discharge section shell 204. Furthermore, the outer diameter D1 of the cylindrical assembly is typically 50mm to 200mm smaller than the inner diameter D2 of the slag discharge section shell 204, i.e., 50mm ≤ D2 - D1 ≤ 200mm. This arrangement facilitates the installation and disassembly of the slag discharge heat exchanger 10 and better meets insulation requirements.

[0063] In one embodiment, such as Figure 1 and Figure 4 As shown, the height H of the cylindrical assembly is typically set such that the lower end face of the cylindrical assembly is 10mm to 100mm higher than the highest liquid level of the quenching agent 2000 inside the slag discharge section shell 204. That is, the distance L between the lower end face of the cylindrical assembly and the highest liquid level of the quenching agent 2000 inside the slag discharge section shell 204 satisfies 10mm ≤ L ≤ 100mm. This arrangement fully utilizes the heat recovery function of the slag discharge heat exchanger 10 and protects the slag discharge section shell 204 and the partition support plate 302, while also preventing the heat exchange medium 3000 from absorbing heat from the quenching agent 2000.

[0064] During operation of the slag discharge system in this embodiment, the molten liquid slag 1000 in the slag storage section shell 203 enters the protective cover 1 via the slag discharge controller 303, and the temperature of the molten liquid slag 1000 is controlled by the slag temperature regulating structure 40. At the same time, the heat exchange medium 3000 is introduced through the medium inlet pipe 80. The heat exchange medium 3000 flows through the medium inlet pipe 23, the side wall pipe 211, the top wall pipe 212, the cover pipe 22, and the medium outlet pipe 24, and is finally sent to the user end through the medium outlet pipe 90. During the flow of the heat exchange medium 3000, it fully absorbs the heat transferred from the protective cover 1 to the heat exchange pipe 2, realizing the recovery and utilization of heat. At the same time, it controls the temperature rise of the protective cover 1 itself, avoids the deformation and burn-out of the protective cover 1 due to high temperature, and avoids damage to other components due to the high temperature of the protective cover 1, effectively improving the thermal efficiency and fault-free operation cycle of the slag discharge system.

[0065] It should be noted that in this embodiment, "carbon-containing materials" refers to various high-quality coal, low-quality coal, inferior coal, peat, mixed briquetted coal, solid waste, solid carbon-containing biomass, heavy oil, and other solid and liquid combustible materials.

[0066] In this embodiment, "reactor" refers to reaction equipment such as gasifiers and reactors that use the aforementioned solid "carbon-containing substances" (carbon-containing particulate matter) as the main raw materials and oxygen and steam as the main gasifying agents to produce gases such as hydrogen, carbon monoxide, and methane.

[0067] In this embodiment, "inorganic residue" refers to substances that are essentially carbon-free and remain in the reactor after carbon-containing substances have undergone gasification, conversion, and oxidation.

[0068] In this embodiment, the "slag temperature regulator" refers to a component that uses combustibles and oxidizers for combustion reaction, and can also be conventionally called a "burner" or "burner nozzle".

[0069] In this embodiment, the "slag discharge controller" refers to the component at the bottom of the reactor used to control the discharge of molten liquid slag, and is also commonly referred to as the "slag outlet" or "slag discharger".

[0070] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A slag discharge heat exchange device, characterized in that, include: The protective cover (1) includes a cylindrical body (11) and a cover (12). The top wall (111) of the cylindrical body (11) has an opening. The cover (12) is detachably connected to the top wall (111) and covers the opening. The cover (12) is provided with a through mounting hole (121). A heat exchange pipe (2) is connected to the protective cover (1). The heat exchange pipe (2) includes a cylindrical pipe (21) and a cover pipe (22) that are connected together. The cylindrical pipe (21) is coiled on the cylindrical body (11), and the cover pipe (22) is coiled on the cover body (12).

2. The slag discharge heat exchanger according to claim 1, characterized in that, The first end of the cylindrical pipe (21) is connected to a medium inlet pipe (23), the second end of the cylindrical pipe (21) is connected to the first end of the cover pipe (22), and the second end of the cover pipe (22) is connected to a medium outlet pipe (24).

3. The slag discharge heat exchanger according to claim 2, characterized in that, The second end of the cylindrical pipe (21) is connected to the first end of the cover pipe (22) via a first connector (25), and the second end of the cover pipe (22) is connected to the medium outlet pipe (24) via a second connector (26).

4. The slag discharge heat exchanger according to any one of claims 1 to 3, characterized in that, The top wall (111) has a first through hole (1111), the cover (12) has a second through hole (122), and the protective cover (1) also includes a fastener (13). The first through hole (1111) and the second through hole (122) are connected. The fastener (13) passes through the first through hole (1111) and the second through hole (122) and connects the top wall (111) and the cover (12).

5. The slag discharge heat exchanger according to any one of claims 1 to 3, characterized in that, The cover (12) has a plurality of third through holes (123) around the mounting hole (121).

6. The slag discharge heat exchanger according to any one of claims 1 to 3, characterized in that, The cylinder (11) also includes a side wall (112), one end of which is connected to the outer periphery of the top wall (111). The cylinder pipe (21) includes a side wall pipe (211) and a top wall pipe (212) that are connected together. The side wall pipe (211) is coiled on the side wall (112), and the top wall pipe (212) is coiled on the top wall (111).

7. The slag discharge heat exchanger according to claim 6, characterized in that, The sidewall (112) is provided with a number of mating holes (1121).

8. The slag discharge heat exchanger according to claim 6, characterized in that, The protective cover (1) also includes a support ear (14), which is connected to the side wall (112) and is located at the end of the side wall (112) away from the top wall (111).

9. A slag removal system, characterized in that, include: Outer shell (20); A partition structure (30) is connected to the outer shell (20) and divides the interior of the outer shell (20) into a slag storage pool (201) and a slag discharge pool (202). A connecting hole (301) is provided on the partition structure (30). The slag discharge heat exchange device (10) according to any one of claims 1 to 8 is disposed in the slag discharge pool (202), and the slag storage pool (201) is connected to the mounting hole (121) through the connecting hole (301).

10. The slag discharge system according to claim 9, characterized in that, The slag discharge system also includes a slag temperature regulating structure (40), which is disposed between the partition structure (30) and the cover (12), and is arranged around the connecting hole (301) and the mounting hole (121).

Images