A hydrometallurgical heat exchanger

Abstract

The present invention discloses a wet smelting heat exchanger, which relates to the technical field of heat exchangers, including a tube shell, a tube sheet and heat exchange tubes. Tube sheets are fixed at both ends of the tube shell. There are multiple heat exchange tubes, and the multiple heat exchange tubes are spirally wound on the skeleton inside the tube shell. A sealing plate is provided on one side of the tube sheet. Multiple groups of fixing components are distributed in a ring array on the outside of the sealing plate. A transmission component is installed on the side of the sealing plate away from the tube sheet. Two connecting pipes are connected to the sealing plate, and one end of the two connecting pipes is installed with an installation component. When the heat exchange tubes inside the existing wet smelting heat exchanger are cleaned by the present invention, the connecting gears on multiple groups of fixing components can be rotated simultaneously at one time by humans, which brings convenience to the opening process of the tube sheet, so that the staff does not need to use disassembly tools to disassemble them one by one, and also replaces the traditional connection method of installing with left and right fastening bolts, thereby improving the fixed installation efficiency between the tube sheet and the sealing plate.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, in particular to a wet smelting heat exchanger. Background Art

[0002] In order to achieve the best heat dissipation effect, wet smelting heat exchangers often adopt a bundled tube structure. Capillary tubes are generally used as heat exchange tubes with an outer diameter of 4.5-8MM. The number of tubes is designed according to the required heat exchange area, ranging from dozens to nearly a hundred tubes.

[0003] Due to the large number of heat exchange tubes in existing hydrometallurgical heat exchangers, scale easily accumulates on the outer walls of the heat exchange tubes during continuous use. Scale coating the outer walls of the heat exchange tubes significantly reduces the heat exchange efficiency of the heat exchanger, wastes some of the energy of the high-temperature wastewater, and causes poor cooling effect on the equipment, resulting in equipment damage. To address this problem and improve heat exchange efficiency, the heat exchange tubes inside the heat exchanger must be cleaned regularly. Existing cleaning methods are mainly manual cleaning. Before cleaning, the heat exchange tubes and the frame inside the shell must be removed together. Before removing these structures, the flanges connecting the ends of the heat exchanger must be removed. During removal, the number of fastening bolts between the flanges and the shell is generally around 20-30, so they need to be removed one by one manually, which consumes a lot of manpower and increases the labor intensity. After cleaning, the heat exchange tubes need to be replaced in the shell, which requires another step of tightening multiple bolts during assembly, further increasing work time. To this end, we propose a hydrometallurgical heat exchanger. Summary of the Invention

[0004] The object of the present invention is to provide a hydrometallurgical heat exchanger to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wet smelting heat exchanger, comprising a tube shell, a tube sheet and a heat exchange tube, tube sheets are fixed at both ends of the tube shell, a plurality of heat exchange tubes are provided, and the plurality of heat exchange tubes are spirally wound on the skeleton inside the tube shell, the heat exchange tube is made of polytetrafluoroethylene, a sealing plate is provided on one side of the tube sheet, and a plurality of fixing components are distributed in a ring array on the outside of the sealing plate, a transmission component is installed on the side of the sealing plate away from the tube sheet, two connecting pipes are connected to the sealing plate, one end of the two connecting pipes is installed with an installation component, and one end of the two connecting pipes is fixedly installed with a first connecting pipe and a second connecting pipe through the installation component, and the first connecting pipe and the second connecting pipe are respectively connected to the liquid inlet and liquid outlet of the heat exchange tube.

[0006] The lockhole that is formed on the upper end of the shaft is formed on the upper portion of the shaft, and the lockhole that is formed on the upper portion of the shaft is formed on the upper portion of the shaft.

[0007] Preferably, the transmission assembly includes an outer rotating ring, a first connecting rod, a second connecting rod, an inner rotating ring and an arc-shaped rack. The first connecting rod is fixed to the outside of the outer rotating ring and is provided with multiple, and each of the first connecting rods is fixed with an arc-shaped rack at one end away from the outer rotating ring, and the arc-shaped rack is meshed with the connecting gear. The inner side of the outer rotating ring is fixedly connected to the inner rotating ring through the second connecting rod, and the side of the outer rotating ring close to the sealing plate is rotatably connected to a support bearing, and the side of the support bearing away from the outer rotating ring is fixedly connected to the outer side of the sealing plate, and the outer side of the inner rotating ring is transmission-connected to the input end of the mounting assembly, so that the transmission assembly can be used to conveniently control multiple fixed assemblies to perform synchronous movement.

[0008] Preferably, the mounting assembly includes an annular mounting plate, a second threaded sleeve, a second threaded column, a second fixing plate, a transmission gear and a linkage, the annular mounting plate is fixed to the end portion of the connecting pipe, one end of the first connecting pipe and the second connecting pipe are both fixed with a support ring that seals and fits with the outer side of the connecting pipe, the second threaded sleeve is provided with three groups, the second threaded sleeve is rotatably mounted on the annular mounting plate, the second threaded column is threadedly connected to the inner side of the second threaded sleeve, the second fixing plate is fixed to one end of the second threaded column and is press-fitted with the outer edge of the support ring, the outer side of the second threaded sleeve is fixedly sleeved with a transmission gear, the transmission gear is provided with three groups, a linkage is installed on the side of the annular mounting plate away from the support ring, and the output end of the linkage is transmission-connected to the transmission gear, and the outer side of the inner rotating ring is transmission-connected to the input end of the linkage, and the mounting assembly also facilitates the rapid installation between the connecting pipe on the sealing plate and the external pipe joint.

[0009] Preferably, the linkage part includes a large gear ring and a linkage gear. The large gear ring is rotatably connected to the annular mounting plate through a slewing bearing. The three groups of transmission gears are all meshed on the outside of the large gear ring. The linkage gear is also meshed and connected to the outside of the large gear ring. The central axis of the linkage gear is rotatably connected to the annular mounting plate through a bearing. The outer side of the inner rotating ring is provided with evenly distributed teeth. The inner rotating ring is meshed and connected to the linkage gear through the teeth, and the linkage between the mounting assembly and the transmission assembly is realized through the linkage part.

[0010] Preferably, a V-shaped limit frame is fixed to one end of the second threaded column away from the second fixing plate, so that the movement of the three second threaded columns is more stable and synchronous.

[0011] Preferably, there are two second connecting rods, and a fixing column is fixed on the side of the two second connecting rods away from the sealing plate, and an operating plate is fixed on the end of the fixing column away from the second connecting rod. An anti-slip sleeve is provided on the outer side of the operating plate, which facilitates the operation of the outer rotating ring for rotation through the operating plate.

[0012] Preferably, a plurality of U-shaped grooves are provided on the outer side of the tube sheet, the shape of the U-shaped grooves is similar to that of the first fixing plate, and the first fixing plate can pass through the U-shaped grooves, so that the first fixing plate can pass through the tube sheet to the other side during installation.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When cleaning the heat exchange tubes inside the existing wet smelting heat exchanger, the present invention uses a transmission assembly to simultaneously remove multiple groups of fixing assemblies between the tube sheet and the sealing plate. The transmission assembly is rotated manually. The significance is that the connecting gears on multiple groups of fixing assemblies can be rotated simultaneously at one time, which brings convenience to the opening process of the tube sheet, so that the staff does not need to use disassembly tools to disassemble them one by one. It also replaces the traditional connection method of installing with about 20-30 fastening bolts, thereby improving the fixed installation efficiency between the tube sheet and the sealing plate. In addition, the linkage between the installation assembly and the transmission assembly also facilitates the rapid installation between the connecting pipe on the sealing plate and the external pipe joint.

[0015] 2. The heat exchange tube material of the present invention is a soft polytetrafluoroethylene tube, which has the advantages of strong acid and alkali resistance, high temperature resistance and long service life during wet smelting, and is suitable for heat exchange of various highly corrosive liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2It is a schematic diagram of the local structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the present invention from another perspective;

[0020] Figure 5 This is a schematic diagram of the transmission assembly structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the installation assembly structure of the present invention;

[0022] Figure 7 This is a structural schematic diagram of the installation component of the present invention from another perspective.

[0023] In the figure: 1-tube shell; 2-tube sheet; 3-heat exchange tube; 4-sealing plate; 5-fixing assembly; 6-transmission assembly; 7-connecting pipe; 8-mounting assembly; 9-first connecting pipe; 10-second connecting pipe; 11-first threaded sleeve; 12-connecting sleeve; 13-connecting gear; 14-connecting plate; 15-first threaded column; 16-fixing rod; 17-first fixing plate; 18-limiting rod; 19-outer rotating ring; 20-first connecting rod; 21-second connecting rod; 22-inner rotating ring; 23-arc rack; 24-support bearing; 25-annular mounting plate; 26-second threaded sleeve; 27-second threaded column; 28-second fixing plate; 29-transmission gear; 30-linkage member; 31-support ring; 32-large gear ring; 33-linkage gear; 34-teeth; 35-V-type limiting frame; 36-fixing column; 37-operating panel; 38-U-shaped groove. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Figure 1-Figure 3As shown in the figure, a wet smelting heat exchanger includes a tube shell 1, a tube sheet 2 and a heat exchange tube 3. The tube sheet 2 is fixed at both ends of the tube shell 1. There are multiple heat exchange tubes 3, and the multiple heat exchange tubes 3 are spirally wound on the skeleton inside the tube shell 1. The material of the heat exchange tube 3 is polytetrafluoroethylene. The heat exchange tube 3 made of this material has the advantages of strong acid and alkali resistance, high temperature resistance and long service life during wet smelting. It is suitable for use as a heat exchanger for various highly corrosive liquids. A sealing plate 4 is provided on one side of the tube sheet 2. Multiple groups of fixing components 5 are distributed in a ring array on the outside of the sealing plate 4. A transmission group is installed on the side of the sealing plate 4 away from the tube sheet 2. Part 6, two connecting pipes 7 are connected to the sealing plate 4, one end of the two connecting pipes 7 is installed with a mounting assembly 8, and one end of the two connecting pipes 7 is fixedly installed with a first connecting pipe 9 and a second connecting pipe 10 through the mounting assembly 8, and the first connecting pipe 9 and the second connecting pipe 10 are respectively connected to the liquid inlet and liquid outlet of the heat exchange tube 3; the fixing assembly 5 includes a first threaded sleeve 11, a connecting sleeve 12, a connecting gear 13, a connecting plate 14, a first threaded column 15, a fixing rod 16 and a first fixing plate 17, the first threaded sleeve 11 is rotatably mounted on the sealing plate 4, and the first threaded column 15 is threadedly connected to the first threaded sleeve 11 On the inside, the connecting sleeve 12 is fixed to one end of the first threaded sleeve 11, and the connecting gear 13 is fixedly sleeved on the outside of the connecting sleeve 12. The end of the first threaded column 15 away from the first threaded sleeve 11 is fixedly connected to the connecting plate 14. The top of the connecting plate 14 is fixedly connected to the first fixing plate 17 through a fixing rod 16. The first fixing plate 17 is tightly fitted with the outer edge of the tube sheet 2. The middle part of the connecting plate 14 is slidably sleeved with a limiting rod 18. One end of the limiting rod 18 is fixedly connected to the outer side of the sealing plate 4. There are multiple connecting gears 13, and multiple connecting gears 13 are connected to the outer transmission of the transmission assembly 6. When cleaning the heat exchange tubes inside the existing wet smelting heat exchanger, the transmission assembly 6 can be used to simultaneously remove multiple groups of fixing assemblies 5 between the tube sheet 2 and the sealing plate 4. By manually rotating the transmission assembly 6, the significance is that the connecting gears 13 on multiple groups of fixing assemblies 5 can be rotated simultaneously at one time, which facilitates the opening process of the tube sheet 2, thereby eliminating the need for staff to use disassembly tools to disassemble them one by one. It also replaces the traditional connection method of installing with about 20-30 fastening bolts, thereby improving the fixed installation efficiency between the tube sheet 2 and the sealing plate 4.

[0026] Among them, such as Figure 4As shown, in order to facilitate the control of multiple fixed components 5 for synchronous movement, the transmission component 6 includes an outer rotating ring 19, a first connecting rod 20, a second connecting rod 21, an inner rotating ring 22 and an arc-shaped rack 23. The first connecting rod 20 is fixed to the outside of the outer rotating ring 19 and is provided in plurality. Each first connecting rod 20 is fixed with an arc-shaped rack 23 at one end away from the outer rotating ring 19. The arc-shaped rack 23 is meshed with the connecting gear 13. The inner side of the outer rotating ring 19 is fixedly connected to the inner rotating ring 22 through the second connecting rod 21. The side of the outer rotating ring 19 close to the sealing plate 4 is rotatably connected to the support bearing 24. The side of the support bearing 24 away from the outer rotating ring 19 is fixedly connected to the outer side of the sealing plate 4. The outer side of the inner rotating ring 22 is transmission-connected to the input end of the mounting component 8.

[0027] At the same time, if Figure 5 As shown, in order to facilitate the operation of the outer rotating ring 19 for rotation, two second connecting rods 21 are provided, and a fixing column 36 is fixed on the side of the two second connecting rods 21 away from the sealing plate 4, and an operating plate 37 is fixed on the end of the fixing column 36 away from the second connecting rod 21, and an anti-slip sleeve is provided on the outside of the operating plate 37.

[0028] Specific operation process: When cleaning the heat exchange tube 3 inside the heat exchanger, it is necessary to first remove the sealing plate 4 and open the tube sheet 2. At this time, the operating plate 37 can be manually rotated, and the operating plate 37 drives the inner rotating ring 22 to rotate, and the inner rotating ring 22 drives the outer rotating ring 19 to rotate together, and the outer rotating ring 19 drives multiple arc-shaped racks 23 to revolve through the first connecting rod 20. When the arc-shaped rack 23 rotates, it will rotate the connecting gear 13 one by one, and the connecting gear 13 drives the first threaded sleeve 11 to rotate, and the first threaded sleeve 11 drives the first threaded column 15 to move. The first threaded column 15 drives the first fixing plate 17 to move away from the tube sheet 2 through the connecting plate 14 and the fixing rod 16, so that the first fixing plate 17 is no longer pressed against the outer edge of the tube sheet 2, thereby facilitating the release of the first fixing plate 17 on the multiple positions of the tube sheet 2. The fixed connection function, thereby replacing the traditional connection method of installing with about 20-30 fastening bolts, improves the disassembly efficiency between the tube sheet 2 and the sealing plate 4.

[0029] Example 2: Figure 5 and Figure 6As shown, this embodiment further illustrates Example 1. The mounting assembly 8 shown in the figure includes an annular mounting plate 25, a second threaded sleeve 26, a second threaded column 27, a second fixing plate 28, a transmission gear 29 and a linkage 30. The annular mounting plate 25 is fixed to the end of the connecting pipe 7. One end of the first connecting pipe 9 and the second connecting pipe 10 are fixed with a support ring 31 that is sealed and fitted with the outer side of the connecting pipe 7. The second threaded sleeve 26 is provided with three groups. The second threaded sleeve 26 is rotatably mounted on the annular mounting plate 25. The second threaded column 27 is threadedly connected to the second threaded sleeve 2 6, the second fixing plate 28 is fixed to one end of the second threaded column 27 and is pressed into fit with the outer edge of the support ring 31. The outer fixed sleeve of the second threaded sleeve 26 is connected with a transmission gear 29. The transmission gear 29 is provided with three groups. A linkage member 30 is installed on the side of the annular mounting plate 25 away from the support ring 31, and the output end of the linkage member 30 is transmission-connected to the transmission gear 29, and the outer side of the inner rotating ring 22 is transmission-connected to the input end of the linkage member 30. The installation component 8 also facilitates the rapid installation between the connecting pipe 7 on the sealing plate 4 and the external pipe joint.

[0030] Among them, such as Figure 6 As shown, in order to realize the linkage between the mounting assembly 8 and the transmission assembly 6, the linkage part 30 includes a large ring gear 32 and a linkage gear 33. The large ring gear 32 is rotatably connected to the annular mounting plate 25 through a slewing bearing. The three sets of transmission gears 29 are all meshed on the outside of the large ring gear 32. The linkage gear 33 is also meshed and connected to the outside of the large ring gear 32. The central axis of the linkage gear 33 is rotatably connected to the annular mounting plate 25 through a bearing. The outer side of the inner rotating ring 22 is provided with evenly distributed teeth 34, and the inner rotating ring 22 is meshed and connected to the linkage gear 33 through the teeth 34.

[0031] In addition, if Figure 6 As shown, in order to make the movement of the three second threaded columns 27 more stable and synchronous, a V-shaped limiting frame 35 is fixed to one end of the second threaded column 27 away from the second fixing plate 28 .

[0032] Specific implementation method: When controlling the first fixed plate 17, the staff rotates the operating plate 37 to drive the inner rotating ring 22 to rotate, and the outer teeth 34 will also drive the linkage gear 33 to rotate, and the linkage gear 33 drives the large ring gear 32 to rotate, and the large ring gear 32 drives the three transmission gears 29 to rotate together, and the transmission gear 29 drives the second threaded sleeve 26 to rotate, and the second threaded sleeve 26 drives the second threaded column 27 to move, and the second threaded column 27 drives the second fixed plate 28 to move, thereby simultaneously releasing the fixing effect of the second fixed plate 28 on the support ring 31 that is sealed and fitted on the outside of the connecting pipe 7, and then produces a linkage effect with the linkage part 30. When disassembling the fixing assembly 5, the connecting pipe 7 on the sealing plate 4 and the external pipe joint can also be disassembled at the same time, which can further improve the installation and disassembly efficiency of the overall structure.

[0033] Example 3: Figure 1 and Figure 7 As shown, this embodiment further illustrates Example 1. Tube sheets 2 are fixed at both ends of the tube shell 1 in the figure. A plurality of heat exchange tubes 3 are provided. The plurality of heat exchange tubes 3 are spirally wound on the skeleton inside the tube shell 1. A sealing plate 4 is provided on one side of the tube sheet 2. Multiple groups of fixing components 5 are distributed in a ring array on the outside of the sealing plate 4. A transmission component 6 is installed on the side of the sealing plate 4 away from the tube sheet 2. Two connecting pipes 7 are connected to the sealing plate 4. One end of the two connecting pipes 7 is installed with a mounting component 8, and one end of the two connecting pipes 7 is fixedly installed with a first connecting pipe 9 and a second connecting pipe 10 through the mounting component 8. The first connecting pipe 9 and the second connecting pipe 10 are respectively connected to the liquid inlet and liquid outlet of the heat exchange tube 3. A plurality of U-shaped grooves 38 are opened on the outside of the tube sheet 2. The shape of the U-shaped groove 38 is similar to that of the first fixing plate 17, and the first fixing plate 17 can pass through the U-shaped groove 38.

[0034] When installing the sealing plate 4, multiple first fixing plates 17 first pass through the U-shaped groove 38, and then the sealing plate 4 is rotated so that the first fixing plates 17 rotate between two adjacent U-shaped grooves 38. Similarly, when removing the sealing plate 4, multiple first fixing plates 17 will also pass through the U-shaped groove 38. This design allows the structure on the sealing plate 4 to move better on the tube plate 2.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrometallurgical heat exchanger, comprising a tube shell (1), a tube sheet (2) and a heat exchange tube (3), wherein the tube sheet (2) is fixed to both ends of the tube shell (1), and is characterized in that: The heat exchange tubes (3) are provided in plurality, and the plurality of heat exchange tubes (3) are spirally wound on the skeleton inside the tube shell (1). The heat exchange tubes (3) are made of polytetrafluoroethylene. A sealing plate (4) is provided on one side of the tube sheet (2), and multiple groups of fixing components (5) are distributed in a ring array on the outer side of the sealing plate (4). A transmission component (6) is installed on the side of the sealing plate (4) away from the tube sheet (2). Two connecting tubes (7) are connected to the sealing plate (4), and one end of the two connecting tubes (7) is installed with a mounting component (8), and one end of the two connecting tubes (7) is fixedly installed with a first connecting tube (9) and a second connecting tube (10) respectively through the mounting component (8). The first connecting tube (9) and the second connecting tube (10) are respectively connected to the liquid inlet end and the liquid outlet end of the heat exchange tube (3); The fixing assembly (5) includes a first threaded sleeve (11), a connecting sleeve (12), a connecting gear (13), a connecting plate (14), a first threaded column (15), a fixing rod (16) and a first fixing plate (17), wherein the first threaded sleeve (11) is rotatably mounted on the sealing plate (4), the first threaded column (15) is threadedly connected to the inner side of the first threaded sleeve (11), the connecting sleeve (12) is fixed to one end of the first threaded sleeve (11), the connecting gear (13) is fixedly sleeved on the outer side of the connecting sleeve (12), and the first threaded column (15) is screwed to the inner side of the first threaded sleeve (11). 5) One end away from the first threaded sleeve (11) is fixedly connected to the connecting plate (14), the top of the connecting plate (14) is fixedly connected to the first fixing plate (17) through the fixing rod (16), the first fixing plate (17) is tightly fitted with the outer edge of the tube plate (2), the middle part of the connecting plate (14) is slidably sleeved with a limiting rod (18), one end of the limiting rod (18) is fixedly connected to the outer side of the sealing plate (4), the number of the connecting gears (13) is multiple, and the multiple connecting gears (13) are transmission-connected to the outer side of the transmission assembly (6); The transmission assembly (6) includes an outer rotating ring (19), a first connecting rod (20), a second connecting rod (21), an inner rotating ring (22) and an arc-shaped rack (23), wherein the first connecting rod (20) is fixed to the outer side of the outer rotating ring (19) and is provided with a plurality of them, and each of the first connecting rods (20) is fixed with an arc-shaped rack (23) at one end away from the outer rotating ring (19), and the arc-shaped rack (23) is meshed and connected with the connecting gear (13), and the inner side of the outer rotating ring (19) is fixedly connected with the inner rotating ring (22) through the second connecting rod (21), and the outer rotating ring (19) is rotatably connected with a support bearing (24) on a side close to the sealing plate (4), and the support bearing (24) is fixedly connected to the outer side of the sealing plate (4) on a side away from the outer rotating ring (19), and the outer side of the inner rotating ring (22) is transmission-connected with the input end of the mounting assembly (8); The mounting assembly (8) comprises an annular mounting plate (25), a second threaded sleeve (26), a second threaded column (27), a second fixing plate (28), a transmission gear (29) and a linkage member (30). The annular mounting plate (25) is fixed to the end of the connecting pipe (7). One end of each of the first connecting pipe (9) and the second connecting pipe (10) is fixed with a support ring (31) that is sealed and fitted with the outer side of the connecting pipe (7). The second threaded sleeve (26) is provided with three groups. The second threaded sleeve (26) is rotatably mounted on the annular mounting plate (25). The second threaded column (27) is threadedly connected to the annular mounting plate (25). On the inner side of the second threaded sleeve (26), the second fixed plate (28) is fixed to one end of the second threaded column (27) and is tightly fitted with the outer edge of the support ring (31). The outer fixed sleeve of the second threaded sleeve (26) is connected with a transmission gear (29). The transmission gear (29) is provided with three groups. A linkage member (30) is installed on the side of the annular mounting plate (25) away from the support ring (31), and the output end of the linkage member (30) is transmission-connected to the transmission gear (29). The outer side of the inner rotating ring (22) is transmission-connected to the input end of the linkage member (30). The linkage member (30) includes a large gear ring (32) and a linkage gear (33). The large gear ring (32) is rotatably connected to the annular mounting plate (25) through a slewing bearing. The three groups of transmission gears (29) are all meshed on the outside of the large gear ring (32). The linkage gear (33) is also meshed and connected to the outside of the large gear ring (32). The center axis of the linkage gear (33) is rotatably connected to the annular mounting plate (25) through a bearing. The outer side of the inner rotating ring (22) is provided with uniformly distributed teeth (34). The inner rotating ring (22) is meshed and connected to the linkage gear (33) through the teeth (34).

2. The hydrometallurgical heat exchanger according to claim 1, characterized in that: A V-shaped limiting frame (35) is fixed to one end of the second threaded column (27) away from the second fixing plate (28).

3. The hydrometallurgical heat exchanger according to claim 1, characterized in that: Two second connecting rods (21) are provided, and a fixing column (36) is fixed on one side of the two second connecting rods (21) away from the sealing plate (4), and an operating plate (37) is fixed on one end of the fixing column (36) away from the second connecting rod (21), and an anti-slip sleeve is provided on the outer side of the operating plate (37).

4. The hydrometallurgical heat exchanger according to claim 1, characterized in that: A plurality of U-shaped grooves (38) are provided on the outer side of the tube plate (2). The shape of the U-shaped grooves (38) is similar to that of the first fixing plate (17), and the first fixing plate (17) can pass through the U-shaped grooves (38).

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