Pickling sludge electric furnace treatment equipment

Abstract

The invention relates to the technical field of electric furnaces, and discloses pickling sludge electric furnace treatment equipment which comprises an electric furnace body, a cover plate is arranged above the electric furnace body, a feeding pipeline movably penetrates through the cover plate, two symmetrical nitrogen connecting pipelines further penetrate through the cover plate, and a plurality of gas connecting pipelines are further arranged above the cover plate; two mounting shells are arranged in an inner cavity of the electric furnace body. According to the device, a wedge-shaped block is extruded to move downwards when a first spray head and a second spray head rotate, so that a mounting shell is driven to move downwards, at the moment, a driving assembly can exhaust air in a special-shaped mounting pipe, and at the moment, air is exhausted when the special-shaped mounting pipe rotates by about 90 degrees; meanwhile, the first spray head or the second spray head can be attached to the inner cavity of the mounting shell at the moment, so that air can be reversely fed into the first spray head or the second spray head during air blowing, the first spray head or the second spray head is cleaned, and it is guaranteed that the first spray head or the second spray head cannot be blocked to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of electric furnace technology, specifically, it relates to an electric furnace treatment device for acid washing sludge. Background Technology

[0002] With the continuous increase in the production of stainless steel products, the amount of sludge generated from stainless steel pickling is also increasing year by year. Stainless steel pickling sludge accounts for approximately 3-5% of stainless steel production, and now stainless steel production enterprises generate millions of tons of pickling sludge annually. Combined with historical stockpiles, the accumulated amount of stainless steel pickling sludge is growing larger and larger. The pickling sludge contains approximately 10% valuable metals such as Fe, Ni, and Cr, as well as CaF2, CaO, SiO2, sulfates, nitrates, and acidic substances. It is classified as hazardous solid waste. If not properly treated, the Cr+6 and various heavy metals in the sludge will cause significant environmental harm. However, the pickling sludge is often treated in electric furnaces using oxygen and carbon monoxide, which easily generates large amounts of harmful gases.

[0003] While existing methods can expel harmful gases and block them with gas curtains when the feed inlet is opened, preventing them from escaping, problems often arise during operation. When sludge falls into the electric furnace, dust is easily stirred up and accumulates at the jet nozzles. When the nozzles are closed, this dust tends to concentrate at the nozzle tip, causing blockage. Consequently, the jet curtain may fail to form the next time it is activated, leading to harmful gases escaping from the feed pipe.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An electric furnace for treating acid pickling sludge includes an electric furnace body. A cover plate is provided on top of the electric furnace body, through which a feed pipe is movably passed. Two symmetrical nitrogen connection pipes also pass through the cover plate, and multiple gas connection pipes are provided above the cover plate. Two mounting shells are provided within the inner cavity of the electric furnace body, arranged circumferentially. Multiple equally spaced circular slots are formed at the bottom of the inner cavities of both mounting shells, and a movable sleeve is provided at the bottom of each circular slot. The inner cavity of each movable sleeve fits into... The furnace body is equipped with an irregularly shaped mounting tube, and wedge-shaped blocks are provided on one side wall of each of the two mounting shells. The inner cavity of the furnace body is also equipped with a circular rotating plate with a slot through the middle. Multiple first nozzles and second nozzles are respectively provided on the opposite side walls of the slot. Four connecting slots are provided on the top of the circular rotating plate in a circular arrangement. The inner cavity of the furnace body is also equipped with a driving assembly, which is used to drive the first nozzles and second nozzles to rotate in a circular manner. The driving assembly is also used to generate gas by drawing gas from the irregularly shaped mounting tube.

[0006] In a preferred embodiment of the present invention, the bottom of the electric furnace body is provided with four support legs arranged in a circular pattern, the bottom of the inner cavity of the electric furnace body is provided with a discharge port, and the bottom of the electric furnace body is provided with a first valve at the discharge port.

[0007] In a preferred embodiment of the present invention, an installation pipe is provided at the bottom of each of the two nitrogen connection pipes, and an annular sealing plate is provided through the bottom of the two installation pipes. Four sealing partitions are provided at the bottom of the annular sealing plate in a circular arrangement. The four sealing partitions are provided in the inner cavity of the placement shell. An annular groove is provided on the placement shell. The annular groove and the annular sealing plate are rotatably connected. Four connecting grooves are provided at the bottom of the placement shell, and the connecting grooves and the connection grooves are integrally connected.

[0008] In a preferred embodiment of the present invention, the drive assembly includes a servo motor, which is disposed above the cover plate. A rotating rod is provided at the output end of the servo motor. The rotating rod movably passes through the cover plate, and a drive gear is provided at the end away from the servo motor. A toothed ring is meshed on one side wall of the drive gear, and a circular rotating ring is provided in the inner cavity of the toothed ring.

[0009] In a preferred embodiment of the present invention, the inner cavity of the circular rotating ring is provided with a discharge pipe, the discharge pipe is located at the bottom of the feed pipe, and a second valve is provided at the bottom of the discharge pipe.

[0010] In a preferred embodiment of the present invention, the circular rotating ring is rotatably disposed at the bottom of the cover plate. An irregularly shaped groove is formed on the outer wall of the circular rotating ring. Two guide sliders are slidably disposed in the inner cavity of the irregularly shaped groove. The two guide sliders are symmetrical to each other. A connecting block is disposed above each of the two guide sliders. A connecting rod is disposed on each side wall of the two connecting blocks. The four connecting rods are symmetrical to each other in pairs. A connecting member is disposed at the opposite end of each pair of the four connecting rods. The four connecting members are symmetrical to each other in pairs.

[0011] In a preferred embodiment of the present invention, each of the irregularly shaped mounting tubes has two mutually symmetrical rectangular slots on its upper part, each of the irregularly shaped mounting tubes has a mounting rod in its inner cavity, each mounting rod is movably inserted through two adjacent rectangular slots, and a connecting rod is provided between each pair of mounting rods, and a connecting member is provided on the two connecting rods.

[0012] In a preferred embodiment of the present invention, each of the mounting rods is provided with a fixing rod at its bottom, and a piston plate is provided at the bottom of each fixing rod away from the mounting rod. Each piston plate is sealed in the inner cavity of the irregularly shaped mounting tube, and an annular plate is also provided in the inner cavity of each irregularly shaped mounting tube.

[0013] In a preferred embodiment of the present invention, each of the irregularly shaped mounting tubes is respectively disposed at the bottom of the cover plate, and a movable sleeve is disposed on the outer side wall of the end of each irregularly shaped mounting tube away from the cover plate. Each movable sleeve has four movable grooves arranged in a circular pattern in its inner cavity. Each movable groove is symmetrical to each other in pairs. A movable slider is slidably disposed in the inner cavity of each movable groove. Each movable slider is symmetrical to each other in pairs. One of the four opposing side walls of each movable slider is disposed on the side wall of the irregularly shaped mounting tube. A return spring is also disposed in the inner cavity of each movable groove, and the other end of the return spring is disposed on the movable slider.

[0014] In a preferred embodiment of the present invention, the bottom of the circular rotating ring is provided with four connecting frames arranged in a circular pattern, each connecting frame is provided with a mounting frame at its bottom end, and each mounting frame is provided with a fixing block at one of its opposite ends. Each fixing block is provided at the bottom of the circular rotating plate.

[0015] Compared with the prior art, the present invention has the following advantages: This invention controls the rotation of a circular rotating ring via a drive assembly. When the circular rotating ring rotates, it drives the circular rotating plate to rotate, thus driving the first and second nozzles to rotate. Simultaneously, the rotation of the first and second nozzles compresses the wedge-shaped block downwards, thereby causing the mounting housing to move downwards. At this time, the drive assembly allows air to be drawn from the irregularly shaped mounting tube first, and then discharged when the rotation approaches 90 degrees. At this point, the first or second nozzle can fit against the inner cavity of the mounting housing, so air can be drawn into the first or second nozzle in reverse during blowing, thereby cleaning the first or second nozzle and ensuring that the first or second nozzle does not become clogged to a certain extent.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of an electric furnace treatment equipment for acid pickling sludge; Figure 2 A bottom view schematic diagram of an electric furnace treatment equipment for acid pickling sludge; Figure 3 This is a side view schematic diagram of an electric furnace treatment equipment for acid pickling sludge. Figure 4 A cross-sectional view (I) of the electric furnace body of an electric furnace treatment equipment for pickling sludge; Figure 5 A cross-sectional view (II) of the electric furnace body of an electric furnace treatment equipment for pickling sludge; Figure 6 A schematic diagram of the exploded structure of the nitrogen connection pipeline in an electric furnace treatment equipment for pickling sludge; Figure 7 A top view schematic diagram of the circular rotating plate structure of an electric furnace treatment device for acid pickling sludge; Figure 8 A bottom view schematic diagram of the circular rotating plate structure of an electric furnace treatment device for acid pickling sludge; Figure 9 A schematic diagram of the installation shell structure of an electric furnace treatment equipment for acid pickling sludge; Figure 10 This is a schematic cross-sectional view of an irregularly shaped installation pipe for an electric furnace treatment device for pickling sludge.

[0018] In the picture: 1. Electric furnace body; 11. Support leg; 111. Discharge port; 12. Nitrogen connection pipe; 121. Installation pipe; 122. Annular sealing plate; 123. Sealing partition; 13. Feed pipe; 14. First valve; 15. Cover plate; 16. Discharge pipe; 161. Second valve; 17. Gas connection pipe; 2. Servo motor; 21. Rotary rod; 211. Drive gear; 212. Gear ring; 22. Circular rotating ring; 221. Irregular groove; 222. Guide slider; 23. Connecting block; 231. Connecting rod; 232. Connecting component; 3. Circular rotating plate; 31. Connecting slot; 311. Housing placement; 312. Annular slot; 32. First nozzle; 321. Second nozzle; 33. Fixing block; 331. Mounting bracket; 332. Connecting bracket; 4. Irregularly shaped mounting tube; 41. Rectangular groove; 42. Mounting rod; 421. Connecting rod; 422. Fixing rod; 423. Piston plate; 424. Circular ring plate; 43. Moving sleeve; 431. Moving slide; 432. Moving slider; 433. Return spring; 44. Mounting housing; 441. Circular groove; 45. Wedge block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1:

[0021] like Figures 1 to 10As shown, an electric furnace treatment device for pickling sludge includes an electric furnace body 1. A cover plate 15 is provided above the electric furnace body 1, and a feed pipe 13 is movably passed through the cover plate 15. Two symmetrical nitrogen connection pipes 12 also pass through the cover plate 15. Multiple gas connection pipes 17 are also provided above the cover plate 15. Two mounting shells 44 are provided inside the electric furnace body 1. The two mounting shells 44 are circumferentially distributed. Multiple equally spaced circular slots 441 are opened at the bottom of the inner cavity of each mounting shell 44. Each circular slot 441 is provided with a movable sleeve 43 at the bottom of the mounting shell 44. Each movable sleeve 43 The inner cavity is fitted with irregularly shaped mounting tubes 4 respectively, and wedge-shaped blocks 45 are provided on one side wall of the two mounting shells 44; the inner cavity of the electric furnace body 1 is also provided with a circular rotating plate 3, the circular rotating plate 3 has a slot through the middle, and multiple equidistant first nozzles 32 and second nozzles 321 are respectively provided on the opposite side wall of the slot cavity; four circumferentially distributed connecting slots 31 are provided on the top of the circular rotating plate 3; the inner cavity of the electric furnace body 1 is also provided with a driving assembly, which is used to drive the first nozzles 32 and second nozzles 321 to rotate in a circle, and the driving assembly is also used to draw gas into the irregularly shaped mounting tubes 4. The drive assembly controls the rotation of the circular rotating ring 22. When the circular rotating ring 22 rotates, it drives the circular rotating plate 3 to rotate, which in turn drives the first nozzle 32 and the second nozzle 321 to rotate. Simultaneously, the rotation of the first nozzle 32 and the second nozzle 321 compresses the wedge block 45 to move downward, thereby driving the mounting housing 44 to move downward. At this time, the drive assembly allows air to be drawn from the irregularly shaped mounting tube 3 first, and then discharged when the rotation approaches 90 degrees. At this time, the first nozzle 32 or the second nozzle 321 can fit against the inner cavity of the mounting housing 44. Therefore, when blowing air, air can be drawn into the first nozzle 32 or the second nozzle 321 in the opposite direction, thereby cleaning the first nozzle 32 or the second nozzle 321. Thus, to a certain extent, it is ensured that the first nozzle 32 or the second nozzle 321 will not become blocked.

[0022] like Figures 1 to 5 As shown in the specific embodiment, the bottom of the electric furnace body 1 is provided with four support legs 11 arranged in a circular pattern, and the bottom of the inner cavity of the electric furnace body 1 is provided with a discharge port 111. A first valve 14 is provided at the discharge port 111 at the bottom of the electric furnace body 1. In this configuration, the installation position and components of the first valve 14 are determined.

[0023] like Figures 1 to 10As shown, further, installation pipes 121 are respectively provided at the bottom ends of the two nitrogen connection pipes 12, and annular sealing plates 122 are provided through the bottom of the two installation pipes 121. Four sealing partitions 123 are provided at the bottom of the annular sealing plates 122 in a circular arrangement. The four sealing partitions 123 are provided in the inner cavity of the housing 311. Annular grooves 312 are provided on the housing 311. The annular grooves 312 and the annular sealing plates 122 are rotatably connected. Four connecting grooves are provided at the bottom of the housing 311, and the connecting grooves and the connecting grooves 31 are integrated. In this configuration, when nitrogen is injected into the housing 311 through the nitrogen connection pipe 12, the housing 311 can rotate because it is integrally connected with the circular rotating plate 3. Since the housing 311 has a sealing partition 123 in its inner cavity, it can be divided into four areas. Nitrogen can enter the two opposite areas every 90 degrees, allowing the nitrogen to enter the circular rotating plate 3 and be delivered to the first nozzle 32 or the second nozzle 321, thus forming a rectangular nitrogen curtain. This reduces the leakage of residual harmful gases from the open feed pipe 13 to a certain extent.

[0024] Example 2:

[0025] The difference between Embodiment 1 and this embodiment is as follows: (See figure) Figures 1 to 10 As shown, an electric furnace treatment device for pickling sludge includes a drive assembly comprising a servo motor 2, which is positioned above a cover plate 15. A rotating rod 21 is located at the output end of the servo motor 2, movably passing through the cover plate 15. A drive gear 211 is located at the end furthest from the servo motor 2. A gear ring 212 meshes with one side wall of the drive gear 211, and a circular rotating ring 22 is located within the inner cavity of the gear ring 212. This configuration defines the installation position and components of the drive assembly.

[0026] like Figures 1 to 10 As shown, in a specific embodiment, a discharge pipe 16 is provided inside the circular rotating ring 22. The discharge pipe 16 is located at the bottom of the feed pipe 131, and a second valve 161 is provided at the bottom of the discharge pipe 16. In this configuration, the installation position of the second valve 161 is determined.

[0027] like Figures 1 to 10As shown, further, the circular rotating ring 22 is rotatably mounted at the bottom of the cover plate 15. An irregularly shaped groove 221 is formed on the outer wall of the circular rotating ring 22. Two guide sliders 222 are slidably mounted inside the irregularly shaped groove 221. The two guide sliders 222 are symmetrical to each other. A connecting block 23 is provided above each of the two guide sliders 222. Connecting rods 231 are provided on the side walls of the two connecting blocks 23 respectively. The four connecting rods 231 are symmetrical to each other in pairs. Connecting pieces 232 are provided at opposite ends of the four connecting rods 231 in pairs. The four connecting pieces 232 are symmetrical to each other in pairs. In this configuration, the position of the guide sliders 222 is determined.

[0028] Example 3:

[0029] The difference between Embodiment 2 and this embodiment is that: Figures 1 to 10 As shown, an electric furnace treatment device for pickling sludge has two symmetrical rectangular slots 41 on the top of each irregularly shaped mounting pipe 4. Each irregularly shaped mounting pipe 4 has an mounting rod 42 inside its cavity. Each mounting rod 42 movably passes through two adjacent rectangular slots 41, and a connecting rod 421 is provided between each pair of mounting rods 42. A connecting piece 232 is provided on each of the two connecting rods 421. This design ensures that the guide slider 222 can move vertically.

[0030] like Figures 1 to 10 As shown, in a specific embodiment, each mounting rod 42 is provided with a fixing rod 422 at its bottom, and a piston plate 423 is provided at the end of each fixing rod 422 away from the mounting rod 42. Each piston plate 423 is sealed in the inner cavity of the irregular mounting tube 4, and an annular plate 424 is also provided in the inner cavity of each irregular mounting tube 4. In this configuration, when the guide slider 222 moves, the mounting rod 42 can move vertically. When the mounting rod 42 moves vertically, it can drive the fixing rod 422 to move vertically. When the fixing rod 422 moves vertically, it can drive the piston plate 423 to move vertically. When the piston plate 423 moves vertically upward, it can allow the irregularly shaped mounting tube 4 to draw air. When the piston plate 423 moves downward, it can allow the irregularly shaped mounting tube 4 to release air. When releasing air, the gas can be blown in the opposite direction through the mounting housing 44 and the first nozzle 32 or the second nozzle 321 that is in contact with it, thereby preventing the first nozzle 32 or the second nozzle 321 from being blocked by dust to a certain extent.

[0031] like Figures 1 to 10As shown, each irregularly shaped mounting tube 4 is further disposed at the bottom of the cover plate 15, and a movable sleeve 43 is disposed on the outer wall of the end of each irregularly shaped mounting tube 4 away from the cover plate 15. Each movable sleeve 43 has four movable grooves 431 arranged in a circular pattern in its inner cavity. Each movable groove 431 is symmetrical to each other in pairs. Each movable groove 431 has a movable slider 432 slidably disposed in its inner cavity. Each movable slider 432 is symmetrical to each other in pairs. The four opposite side walls of each movable slider 432 are disposed on the side wall of the irregularly shaped mounting tube 4. Each movable groove 431 is also provided with a return spring 433 in its inner cavity, and the other end of the return spring 433 is disposed on the movable slider 432. In this configuration, it is ensured that when one end of the first nozzle 32 contacts the inclined surface of the wedge block 45, the wedge block 45 can be squeezed and tilted downward with the assistance of the moving sleeve 43 and the irregular mounting tube 4. This ensures that the mounting housing 44 can separate from the second nozzle 321 until the circular rotating plate 3 rotates 90 degrees. At this time, the first nozzle 32 can be placed in the original position of the second nozzle 321. At this time, the mounting housing 44 can be reset with the assistance of the return spring 433 of the moving sleeve 43, so that the first nozzle 32 and the mounting housing 44 can fit together. Therefore, continuing the above steps can blow air in the reverse direction on the first nozzle 32.

[0032] like Figures 1 to 10 As shown, furthermore, the bottom of the circular rotating ring 22 is provided with four connecting brackets 332 arranged in a circular pattern. Each connecting bracket 332 has a mounting bracket 331 at its bottom end. Each mounting bracket 331 has a fixing block 33 at one of its opposite ends. Each fixing block 33 is located at the bottom of the circular rotating plate 3. This arrangement ensures that the circular rotating plate 3 can rotate.

[0033] The implementation principle of the acid washing sludge electric furnace treatment equipment of the present invention is as follows: First, the staff inputs the sludge into the electric furnace body 1 through the feed pipe 13. Before inputting, the staff controls the operation of the second valve 161, so that the second valve 161 can be opened, thereby ensuring that the sludge can fall into the inner cavity of the electric furnace body 1. At this time, the staff starts the servo motor 2 by controlling it. Therefore, the servo motor 2 can drive the rotating rod 21 to rotate. When the rotating rod 21 rotates, it can drive the drive gear 211 to rotate. When the drive gear 211 rotates, it can drive the gear ring 212 to rotate. When the gear ring 212 rotates, it can drive the circular rotating ring 22 to rotate. When the circular rotating ring 22 rotates, it can rotate in a circle through the connecting frame 332 and the mounting frame 331 set at the bottom. When the mounting frame 331 rotates in a circle, it can drive the fixing block 33 to rotate in a circle. Therefore, it can drive the circular rotating plate 3 to rotate in a circle. At the same time, when the circular rotating ring 22 rotates in a circle, it can also drive the guide slider 222 to move vertically with the assistance of the mounting rod 42 which is slidably installed in the inner cavity of the rectangular slot 41 opened on the irregular groove 221 and the irregular mounting tube 4 (because the mounting rod 42 is provided with a connector 232, and the connector 232 is provided with a connecting rod 231, and the connecting rod 231 is provided with a connecting block 23, and the connecting block 23 is provided on the guide slider 222, thus ensuring that the guide slider 222 can only move vertically). When the guide slider 222 moves, it ensures that the mounting rod 42 can move vertically. When the mounting rod 42 moves vertically, it can drive the fixing rod 422 to move vertically. When the fixing rod 422 moves vertically, it can drive the piston plate 423 to move vertically. When the piston plate 423 moves vertically upward, it allows the irregularly shaped mounting tube 4 to extract air. When the piston plate 423 moves downward, it can allow the irregularly shaped mounting tube 4 to release air. When the air is released, the gas can be blown in the opposite direction through the mounting housing 44 and the first nozzle 32 or the second nozzle 321 that is attached at this time, thereby preventing the first nozzle 32 or the second nozzle 321 from being blocked by dust to a certain extent. When the circular rotating plate 3 rotates, it can drive the first nozzle 32 and the second nozzle 321, which are arranged in a rectangular pattern inside the cavity, to rotate (because each opposite side wall of the inner cavity of the circular rotating plate 3 is equipped with the same first nozzle 32 or second nozzle 321). Therefore, according to the "Instruction Manual Appendix", Figure 10 "At this point, the first nozzle 32 rotates clockwise, so one end of the first nozzle 32 will contact the inclined surface of the wedge block 45, thus squeezing the wedge block 45 to move downwards with the assistance of the moving sleeve 43 and the irregular mounting tube 4. This ensures that the mounting housing 44 can separate from the second nozzle 321 until the circular rotating plate 3 rotates 90 degrees. At this point, the first nozzle 32 can be placed in the original position of the second nozzle 321, and the mounting housing 44 can be reset with the assistance of the return spring 433 of the moving sleeve 43, so that the first nozzle 32 and the mounting housing 44 can fit together. Therefore, continuing the above steps can blow air in the reverse direction on the first nozzle 32." When nitrogen is injected into the housing 311 through the nitrogen connection pipe 12 (because the housing 311 and the circular rotating plate 3 are integrated, the housing 311 can rotate, and because the housing 311 is equipped with a sealing partition 123, the housing 311 can be divided into four areas. So when it rotates 90 degrees, nitrogen can enter the two opposite areas, so that the nitrogen can enter the circular rotating plate 3 and be delivered to the first nozzle 32 or the second nozzle 321 through the circular rotating plate 3, thereby forming a rectangular nitrogen curtain. Therefore, it can reduce the leakage of residual harmful gas from the opened feed pipe 13 to a certain extent).

Claims

1. An electric furnace treatment device for pickling sludge, comprising an electric furnace body (1), characterized in that: A cover plate (15) is provided above the electric furnace body (1). A feed pipe (13) is movably passed through the cover plate (15). Two symmetrical nitrogen connection pipes (12) are also passed through the cover plate (15). Multiple gas connection pipes (17) are also provided above the cover plate (15). The inner cavity of the electric furnace body (1) is provided with two mounting shells (44), which are arranged in a circular pattern. The bottom of the inner cavity of each of the two mounting shells (44) is provided with multiple equally spaced circular slots (441), and each circular slot (441) is provided with a movable sleeve (43) at the bottom of the mounting shell (44). Each movable sleeve (43) is provided with a shaped mounting tube (4) fitted into its inner cavity. A wedge block (45) is provided on one side wall of each of the two mounting shells (44). The inner cavity of the electric furnace body (1) is also provided with a circular rotating plate (3). The circular rotating plate (3) has a slot through the middle, and a number of first nozzles (32) and second nozzles (321) are respectively provided on the opposite side walls of the slot cavity. The circular rotating plate (3) has four connecting slots (31) arranged in a circular pattern above it. The inner cavity of the electric furnace body (1) is also provided with a driving component, which is used to drive the first nozzle (32) and the second nozzle (321) to rotate in a circular motion. The driving component is also used to draw gas into the irregularly shaped installation tube (4).

2. The electric furnace treatment equipment for pickling sludge according to claim 1, characterized in that, The bottom of the electric furnace body (1) is provided with four support legs (11) arranged in a circular pattern. The bottom of the inner cavity of the electric furnace body (1) is provided with a discharge port (111). The bottom of the electric furnace body (1) is provided with a first valve (14) at the discharge port (111).

3. The electric furnace treatment equipment for pickling sludge according to claim 1, characterized in that, The bottom ends of the two nitrogen connection pipes (12) are respectively provided with installation pipes (121), and the bottom of the two installation pipes (121) are provided with annular sealing plates (122). The bottom of the annular sealing plates (122) is provided with four sealing partitions (123) arranged in a circular pattern. The four sealing partitions (123) are provided in the inner cavity of the placement shell (311). The placement shell (311) is provided with annular grooves (312). The annular grooves (312) and the annular sealing plates (122) are rotatably connected. The bottom of the placement shell (311) is provided with four connecting grooves, and the connecting grooves and the connecting grooves (31) are integrated.

4. The electric furnace treatment equipment for pickling sludge according to claim 1, characterized in that, The drive assembly includes a servo motor (2), which is located above the cover plate (15). The output end of the servo motor (2) is provided with a rotating rod (21), which moves through the cover plate (15). The end away from the servo motor (2) is provided with a drive gear (211). A gear ring (212) is meshed on one side wall of the drive gear (211), and a circular rotating ring (22) is provided in the inner cavity of the gear ring (212).

5. The electric furnace treatment equipment for pickling sludge according to claim 4, characterized in that, The inner cavity of the circular rotating ring (22) is provided with a feeding pipe (16), the feeding pipe (16) is located at the bottom of the feeding pipe (131), and a second valve (161) is provided at the bottom of the feeding pipe (16).

6. The electric furnace treatment equipment for pickling sludge according to claim 4, characterized in that, The circular rotating ring (22) is rotatably mounted at the bottom of the cover plate (15). The outer wall of the circular rotating ring (22) is provided with an irregular groove (221). Two guide sliders (222) are slidably mounted inside the irregular groove (221). The two guide sliders (222) are symmetrical to each other. A connecting block (23) is provided above each of the two guide sliders (222). A connecting rod (231) is provided on each side wall of the two connecting blocks (23). The four connecting rods (231) are symmetrical to each other in pairs. A connector (232) is provided at the opposite end of each pair of the four connecting rods (231). The four connectors (232) are symmetrical to each other in pairs.

7. The electric furnace treatment equipment for pickling sludge according to claim 1, characterized in that, Each of the irregularly shaped mounting tubes (4) has two symmetrical rectangular slots (41) on its top. Each of the irregularly shaped mounting tubes (4) has an mounting rod (42) inside its cavity. Each mounting rod (42) is movably inserted through two adjacent rectangular slots (41). A connecting rod (421) is provided between each pair of mounting rods (42), and a connector (232) is provided on each of the two connecting rods (421).

8. The electric furnace treatment equipment for pickling sludge according to claim 7, characterized in that, Each of the mounting rods (42) is provided with a fixing rod (422) at its bottom. Each fixing rod (422) is provided with a piston plate (423) at one end away from the mounting rod (42). Each piston plate (423) is sealed in the inner cavity of the irregular mounting tube (4). Each irregular mounting tube (4) is also provided with a ring plate (424) in its inner cavity.

9. The electric furnace treatment equipment for pickling sludge according to claim 8, characterized in that, Each of the irregularly shaped mounting tubes (4) is respectively set at the bottom of the cover plate (15), and a movable sleeve (43) is provided on the outer wall of the end of each irregularly shaped mounting tube (4) away from the cover plate (15). Each movable sleeve (43) has four movable grooves (431) arranged in a circular pattern in its inner cavity. Each movable groove (431) is symmetrical to each other in pairs. Each movable groove (431) has a movable slider (432) slidably arranged in its inner cavity. Each movable slider (432) is symmetrical to each other in pairs. One side wall of each movable slider (432) is set on the side wall of the irregularly shaped mounting tube (4). Each movable groove (431) also has a return spring (433) in its inner cavity, and the other end of the return spring (433) is set on the movable slider (432).

10. The electric furnace treatment equipment for pickling sludge according to claim 6, characterized in that, The bottom of the circular rotating ring (22) is provided with four connecting frames (332) arranged in a circular pattern. Each connecting frame (332) is provided with a mounting frame (331) at its bottom end. Each mounting frame (331) is provided with a fixing block (33) at one of its opposite ends. Each fixing block (33) is provided at the bottom of the circular rotating plate (3).

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