A device for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop

Abstract

This utility model discloses a device for collecting and treating exhaust gas in an electrolytic manganese electrolysis workshop. The device includes an electrolytic cell and a telescopic hood. The telescopic hood comprises a supporting steel frame, a telescopic steel frame, a track, and hydraulic cylinder assemblies. Two rows of hydraulic cylinder assemblies are installed on the floor of the electrolytic workshop on both sides of the electrolytic cell. Each row of hydraulic cylinder assemblies is rotatably connected to the track via rotating components. This device for collecting and treating exhaust gas in an electrolytic manganese electrolysis workshop controls the tilt and horizontal state of the track through the hydraulic cylinder assemblies. The tilting of the track causes the supporting steel frame to slide down and extend under gravity, resulting in energy efficiency, a safe working environment, and reduced cable dragging and wear.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas collection equipment, specifically a device suitable for waste gas collection and treatment in electrolytic manganese electrolysis workshops. Background Technology

[0002] During the electrolysis of metallic manganese, a mixture of ammonia, ammonium sulfate, magnesium sulfate, manganese sulfate, carbon monoxide, oxygen, water vapor, and a small amount of hydrogen is released from the surface of the electrolytic cell. This mixture floats above the electrolytic cell at a height of 0.1-1.5 meters, giving the production workshop a distinct ammonia odor. This poses a health hazard to workers and pollutes the environment, and has always been a major environmental problem plaguing the electrolytic manganese industry. Therefore, solving this problem is of paramount importance.

[0003] The waste gas generated on the electrolytic cell rises slowly, and the amount produced varies. It is easily volatilized and diffuses. The evaporating gases of ammonium sulfate, magnesium sulfate, and manganese sulfate contained in the waste gas are prone to crystallization, which can cause blockage of the air duct during the collection process. The net dimensions of the electrolysis workshop are 86m x 50m x 10m (length x width x height), and the surface dimensions of the electrolytic cell are approximately 72m x 15.2m (length x width). Due to the large overall area of ​​the electrolytic cell, and the fact that workers are constantly entering and leaving the cell, inspecting the cell, and cleaning the cell, traditional waste gas collection methods are difficult to implement and consume too much energy. Therefore, the focus of this utility model is how to solve the problem of large-area waste gas collection while ensuring production. Utility Model Content

[0004] The purpose of this invention is to provide a device suitable for collecting and treating waste gas in electrolytic manganese metal electrolysis workshops, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for collecting and treating waste gas in an electrolytic manganese electrolysis workshop includes an electrolytic cell and a telescopic hood, wherein the telescopic hood includes a supporting steel frame, a telescopic steel frame, a track, and a hydraulic cylinder assembly.

[0007] Two rows of hydraulic cylinder groups are installed on the ground of the electrolysis workshop, located on both sides of the electrolytic cell. The two rows of hydraulic cylinder groups are rotatably connected to the rails through rotating parts. The rails are equipped with movable support steel frames, which are connected to each other by telescopic steel frames.

[0008] A foldable canopy is arranged on the supporting steel frame. Support plates are installed on the first and last supporting steel frames respectively. The support plate of the first supporting steel frame is connected to the exhaust corrugated pipe. The exhaust corrugated pipe is connected to the exhaust gas treatment tower through the exhaust fan. The gas treated by the exhaust gas treatment tower is discharged into the air through the exhaust pipe.

[0009] As a further embodiment of this utility model: the rotating component is a rail-connecting rotating component and a ground-connecting rotating component, which have the same structure. The rotating component consists of a rotating shaft and a mounting base. The mounting base is U-shaped, and the rotating shaft is rotatably mounted in the mounting base through a bearing. The rotating shaft of the rail-connecting rotating component is connected to the rail, and the mounting base is connected to the telescopic end of the hydraulic cylinder group. The rotating shaft of the ground-connecting rotating component is connected to the bottom of the hydraulic cylinder group. The mounting base is fixed to the ground to accommodate the tilt angle freedom of the rail.

[0010] As a further improvement of this utility model: the supporting steel frame and the track are movably connected by a sliding component;

[0011] The sliding component includes a bracket, a main wheel, and auxiliary wheels. The bracket is installed at the bottom of the supporting steel frame. One rotatable main wheel and two rotatable auxiliary wheels are installed on the bracket. The main wheel is located at the top of the track and can roll on the top of the track. The auxiliary wheels are located at the bottom of the track and play a role in balancing and preventing slippage.

[0012] As a further embodiment of this utility model: the telescopic cover also includes an electric control component, the head support steel frame is fixed on the track and cannot be moved, and the support steel frame is provided with wire holes;

[0013] The electric control components mainly consist of a geared motor, a linkage shaft, a reel, and a wire rope. A side plate is installed on the head support steel frame. Both the geared motor and the linkage shaft are mounted on the side plate. The output end of the geared motor is connected to the linkage shaft. The geared motor is fixed on the side plate. The linkage shaft is rotatably mounted on the side plate through bearings. Two reels are installed at both ends of the linkage shaft. One end of the wire rope is fixed to the reel, and the other end passes through the wire hole and connects to the tail support steel frame.

[0014] As a further improvement of this utility model: the telescopic cover also includes an air intake assembly;

[0015] The intake assembly includes a ventilation pipe, an adjustment pipe, a docking end, a connecting pipe, and a tailpipe. The ventilation pipe is installed on the support plate at the tail end. The ventilation pipe is a downward-curved pipe. The bottom of the ventilation pipe is connected to the adjustment pipe. The docking end is installed at the bottom of the adjustment pipe. The connecting pipe is fixed on the carrier and located directly below the docking end. The docking end is in the shape of an inverted bowl, covering the connecting pipe to form a connection. When the top of the connecting pipe is in complete contact with the docking end, the internal channel is connected.

[0016] As a further embodiment of this utility model: the regulating pipe includes an upper pipe ring, a lower pipe ring, a bellows, a gear, a guide rail, and a rack. The upper pipe ring is connected to the ventilation pipe, and the lower pipe ring is connected to the docking end. The bellows is fixed between the upper pipe ring and the lower pipe ring. The upper pipe ring is provided with two sets of left-right symmetrical rotatable gears and guide rails located on both sides of the gears. A slidable rack that meshes with the gear is installed in the guide rail.

[0017] As a further improvement of this utility model, the lower ring is provided with anti-slip texture located directly below the guide rail.

[0018] As a further improvement of this utility model, the tailpipe is connected to the induced draft fan via an induced draft pipe.

[0019] As a further improvement of this utility model, a weighing sensor is provided between the connecting pipe and the carrier.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This device, applicable to the collection and treatment of waste gas in electrolytic manganese electrolysis workshops, controls the tilt and horizontal state of the track through the control of hydraulic cylinder groups. The tilt of the track causes the supporting steel frame to slide down the canopy under the action of gravity, which is energy-saving, efficient, safe in the working environment, and reduces cable dragging and wear.

[0022] 2. This device, applicable to the collection and treatment of waste gas in electrolytic manganese electrolysis workshops, controls the speed of the shed during the unfolding process through electric control components, reducing the impact on the equipment and providing traction force during the retraction process.

[0023] 3. This device, applicable to the collection and treatment of exhaust gas in electrolytic manganese electrolysis workshops, achieves the expansion and retraction of the telescopic shed via hydraulic cylinder control, while simultaneously connecting the air intake assembly. It operates stably and safely with excellent sealing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a device for collecting and treating waste gas in an electrolytic manganese metal workshop.

[0025] Figure 2 This is a three-dimensional schematic diagram of the structure of a telescopic hood in a device suitable for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop.

[0026] Figure 3 This is a schematic diagram of the structure of a telescopic hood in a device suitable for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop.

[0027] Figure 4 This is a schematic diagram of the air intake assembly in a device suitable for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop.

[0028] Figure 5 This is a schematic diagram of the regulating pipe in a device suitable for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop;

[0029] Figure 6 This is a schematic diagram of the sliding component in a device suitable for collecting and treating waste gas in an electrolytic manganese metal electrolysis workshop.

[0030] In the diagram: 1. Electrolytic cell; 2. Telescopic hood; 201. Supporting steel frame; 202. Telescopic steel frame; 203. Track; 204. Hydraulic cylinder assembly; 205. Connecting pipe; 206. Ventilation pipe; 207. Adjusting pipe; 208. Connecting end; 209. Tail pipe; 210. Wire wheel; 211. Linkage shaft; 212. Steel wire rope; 213. Side plate; 214. Gear motor; 215. Grounding rotating component; 216. Rail connecting rotating component; 217. Weighing sensor; 218. Support frame; 219. Main wheel; 220. Auxiliary wheel; 3. Exhaust corrugated pipe; 4. Exhaust duct; 5. Exhaust fan; 6. Exhaust fan; 7. Waste gas treatment tower; 8. Exhaust pipe. Detailed Implementation

[0031] Please see Figures 1-6 In this embodiment of the utility model, a device for collecting and treating waste gas in an electrolytic manganese electrolysis workshop includes an electrolytic cell 1 and a telescopic cover 2. The telescopic cover 2 includes a supporting steel frame 201, a telescopic steel frame 202, a track 203, and a hydraulic cylinder group 204. The supporting steel frame 201, the telescopic steel frame 202, and the track 203 form a mobile electric telescopic shed structure. The telescopic principle and the supporting principle of this shed are existing technologies and will not be described in detail here.

[0032] Two rows of hydraulic cylinder groups 204 are installed on the ground of the electrolysis workshop, located on both sides of the electrolysis cell 1. The two rows of hydraulic cylinder groups 204 are rotatably connected to the rail 203 through rotating parts. The rail 203 is equipped with a movable support steel frame 201, and the support steel frames 201 are connected to each other by telescopic steel frames 202. The two rows of hydraulic cylinder groups 204 control the lifting and tilting of the rail 203. The PLC controls the extension and retraction parameters of each hydraulic cylinder in the hydraulic cylinder group 204. The different lifting heights of the hydraulic cylinders at different positions cause the rail 203 to produce different tilt angles. Under the action of weight, the support steel frame 201 at the top of the rail 203 slides to a lower position on the rail 203, causing the telescopic cover 2 to extend. The specific actions of the telescopic cover 2 to unfold include the following.

[0033] S1, the hydraulic cylinder group 204 operates synchronously to lift the track 203, so that the track 203 is higher than the electrolytic cell;

[0034] S2, except for the first hydraulic cylinder, all other hydraulic cylinders contract synchronously once, controlling the contraction amount and contraction time of each hydraulic cylinder to avoid the track 203 from bending under force;

[0035] S3, adjust the tilt angle of track 203 to allow telescopic cover 2 to unfold smoothly. A limit plate is set at the end of track 203 to prevent derailment.

[0036] S4, after the telescopic cover 2 is fully extended, the hydraulic cylinder retracts synchronously, and the track 203 drives the telescopic cover 2 to descend and cover the electrolytic cell, thus completing the exhibition shed;

[0037] This allows for different work requirements at different times, achieving the purpose of collecting exhaust gas and retracting the telescopic hood for storage.

[0038] This method of exhibition tent differs from the method of motor-driven walking mechanism. The motor-driven walking mechanism requires electrical energy, external wiring or battery configuration. Repeated walking and dragging of the wire causes cable wear, which poses a risk of leakage and electric shock. Moreover, the electrolytic cell environment is complex, and both the battery and the cable can easily cause accidents, posing safety hazards. This application eliminates the need to drag cables and configure batteries. The cable of the hydraulic cylinder group 204 can be pre-buried, the cable is not exposed, and there is no need to configure batteries, which improves the safety of the working environment. The motor-driven walking mechanism has insufficient traction force at the end of the exhibition tent's stroke due to the traction distance and friction loss of the supporting steel frame 201 and telescopic steel frame 202 structural components. This application does not have this power loss, which can better realize the movement of the exhibition tent. It also has low energy consumption, low cost and maintenance of hydraulic cylinders, and simple and reliable structure.

[0039] A foldable canopy is arranged on the supporting steel frame 201. Support plates are respectively installed on the first and last supporting steel frames 201. The support plate of the first supporting steel frame 201 is connected to the exhaust corrugated pipe 3. The exhaust corrugated pipe 3 is connected to the exhaust gas treatment tower 7 through the exhaust fan 6. The gas treated by the exhaust gas treatment tower 7 is discharged from the exhaust pipe 8. When the telescopic hood 2 collects the exhaust gas on the surface of the trough in the telescopic hood, in order to solve the problem of the exhaust gas flowing according to the airflow path, the exhaust corrugated pipe 3 is designed to be installed at one end of the telescopic hood 2. The negative pressure required by the exhaust corrugated pipe 3 is provided by the exhaust fan 6, so that the telescopic hood 2 is in a negative pressure environment to prevent the exhaust gas from escaping. When the track 203 tilts, the supporting steel frame 201 also tilts. Therefore, the exhaust corrugated pipe 3 is installed. The structural design of the exhaust corrugated pipe 3 makes it retractable and deformable, while maintaining effective communication, which meets the application scenario of this application.

[0040] In a preferred embodiment, the rotating components are a rail-connecting rotating component 216 and a ground-connecting rotating component 215. The rail-connecting rotating component 216 and the ground-connecting rotating component 215 have the same structure. The rotating component consists of a rotating shaft and a mounting base. The mounting base is U-shaped. The rotating shaft is rotatably mounted in the mounting base through a bearing. The rotating shaft of the rail-connecting rotating component 216 is connected to the rail 203. The mounting base is connected to the telescopic end of the hydraulic cylinder assembly 204. The rotating shaft of the ground-connecting rotating component 215 is connected to the bottom of the hydraulic cylinder assembly 204. The mounting base is fixed to the ground to accommodate the tilt angle freedom of the rail 203.

[0041] In a preferred embodiment, the supporting steel frame 201 and the track 203 are movably connected by a sliding component;

[0042] The sliding component includes a bracket 218, a main wheel 219, and auxiliary wheels 220. The bracket 218 is installed at the bottom of the supporting steel frame 201. A rotatable main wheel 219 and two rotatable auxiliary wheels 220 are respectively installed on the bracket 218. The main wheel 219 is located at the top of the track 203 and can roll on the top of the track 203. The auxiliary wheels 220 are located at the bottom of the track 203 and play a role in balancing and preventing slippage.

[0043] In a preferred embodiment, the telescopic cover 2 further includes an electric control component, the head support steel frame 201 is fixed on the track 203 and cannot be moved, and the support steel frame 201 is provided with a wire hole;

[0044] The electric control unit mainly consists of a geared motor 214, a linkage shaft 211, a reel 210, and a wire rope 212. A side plate 213 is mounted on the head support steel frame 201. Both the geared motor 214 and the linkage shaft 211 are mounted on the side plate 213. The output end of the geared motor 214 is connected to the linkage shaft 211, and the geared motor 214 is fixed to the side plate 213. The linkage shaft 211 is rotatably mounted on the side plate 213 via bearings. Two reels 210 are respectively mounted at both ends of the linkage shaft 211. One end of the wire rope 212 is fixed to the reel 210, and the other end passes through a wire hole and connects to the tail support steel frame 201. The geared motor 214 drives the reels 210 to rotate via the linkage shaft 211. The steel wire rope 212 is retracted and extended, and its length does not exceed the travel length of the track 203. The geared motor 214 has forward and reverse rotation functions, which is existing technology and will not be described in detail here. The geared motor 214 has two functions: First, during the unfolding process, since the unfolding tent is unfolded by sliding, its unfolding speed cannot be controlled. The geared motor 214 needs to control the unfolding speed by controlling the release speed of the steel wire rope 212. Second, during the storage process, the geared motor 214 retracts the steel wire rope 212, thereby pulling the telescopic cover 2 to retract and achieve its purpose. During the storage process, the hydraulic cylinder lifts and controls the track 203 to be higher than the electrolytic cell and to a horizontal state, reducing the influence of gravity and avoiding increased energy consumption.

[0045] In a preferred embodiment, the telescopic cover 2 further includes an air intake assembly;

[0046] The intake assembly includes a ventilation pipe 206, an adjusting pipe 207, a connecting end 208, a connecting pipe 205, and a tailpipe 209. The ventilation pipe 206 is mounted on the tail support plate. The ventilation pipe 206 is a downwardly curved pipe. The bottom of the ventilation pipe 206 is connected to the adjusting pipe 207. The connecting end 208 is installed at the bottom of the adjusting pipe 207. The connecting pipe 205, located directly below the connecting end 208, is fixed on the carrier. The connecting end 208 is in the shape of an inverted bowl, covering the connecting pipe 205 to form a connection. When the top of the connecting pipe 205 is in complete contact with the connecting end 208, the internal channel... To better guide the gas flow and carry away the waste gas, an air inlet is set up so that the airflow enters from the tail and exits from the head to the waste gas treatment tower 7. Therefore, the air inlet at the tail of the telescopic hood 2 needs to be connected. The connection needs to consider automatic connection and the sealing of the connection. After the shed is opened, the connection end 208 moves above the connecting pipe 205. In step S4, the hydraulic cylinder retracts synchronously. As the telescopic hood 2 lowers its height to cover the electrolytic cell, the height of the connection end 208 also decreases with the telescopic hood 2. During the descent, the connection end 208 and the connecting pipe 205 are connected.

[0047] In a preferred embodiment, the regulating pipe 207 includes an upper pipe ring 20701, a lower pipe ring 20702, a bellows pipe 20703, a gear 20704, a guide rail 20705, and a rack 20706. The upper pipe ring 20701 is connected to the ventilation pipe 206, and the lower pipe ring 20702 is connected to the docking end 208. The bellows pipe 20703 is fixed between the upper pipe ring 20701 and the lower pipe ring 20702. The upper pipe ring 20701 is provided with two sets of symmetrically rotatable gears 20704 and guide rails 20705 located on both sides of the gears 20704. A slidable rack 20706 that meshes with the gears 20704 is installed in the guide rail 20705. During or after docking, the docking end 208 needs to apply a certain pressure to the docking pipe 205. To maintain its sealing, the hydraulic cylinder has a shrinkage error. The shrinkage error will not affect the tilt of the guide rail, but it will definitely affect the sealing of the mating end 208 and the connecting pipe 205. At the same time, if the mating end 208 and the connecting pipe 205 are tilted when they are in contact, their contact surface will shrink, which will also pose a certain risk of damage to the pipeline. Therefore, an adjusting pipe 207 is set. The adjusting pipe 207 is equipped with a retractable and deformable bellows 20703, as well as a gear 20704 and a rack 20706. When the lower ring 20702 is tilted, the tilted surface contacts the rack 20706 and pushes the gear 20704 to rotate. The gear 20704 will drive the rack 20706 on the other side to extend downward until the tilt angle of the lower ring 20702 meets the surface contact with the connecting pipe 205, ensuring its sealing.

[0048] In a preferred embodiment, the lower tube ring 20702 is provided with anti-slip texture located directly below the guide rail 20705. After both the upper tube ring 20701 and the lower tube ring 20702 come into contact with the lower tube ring 20702, the ventilation pipe 206 applies pressure to the mating end 208 through the lower tube ring 20702, so that the mating end 208 and the mating pipe 205 are sealed by pressure. A rubber gasket can be provided inside the mating end 208. When the mating end 208 and the mating pipe 205 are mated, the mating end 208 applies pressure to the mating pipe 205, and the rubber gasket deforms to achieve a seal.

[0049] In a preferred embodiment, the tailpipe 209 is connected to the induced draft fan 5 through the induced draft pipe 4. The ventilator is installed in the basement of the electrolytic cell surface and blows clean air into the rubber pad through the vent, causing the exhaust gas in the rubber pad to flow to the other end.

[0050] In a preferred embodiment, a load cell 217 is provided between the connector 205 and the carrier. Since the bearing capacity of the connector 205 and the ventilation pipe 206 is limited, the pressure applied during the docking process of the connector 205 and the ventilation pipe 206 is detected by the load cell 217 to obtain the specific pressure value. When the pressure reaches the level required for a tight seal, the hydraulic cylinder stops contracting and maintains the state.

[0051] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.

[0052] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant, comprising an electrolytic cell (1) and a telescopic hood (2), characterized in that, The telescopic cover (2) includes a supporting steel frame (201), a telescopic steel frame (202), a track (203), and a hydraulic cylinder assembly (204). Two rows of hydraulic cylinder groups (204) are installed on the ground of the electrolysis workshop, located on both sides of the electrolysis cell (1). The two rows of hydraulic cylinder groups (204) are rotatably connected to the rail (203) through rotating parts. The rail (203) is equipped with a movable support steel frame (201), and the support steel frames (201) are connected to each other through telescopic steel frames (202). A foldable canopy is arranged on the supporting steel frame (201). Support plates are respectively installed on the first and last supporting steel frames (201). The support plate of the first supporting steel frame (201) is connected to the exhaust corrugated pipe (3). The exhaust corrugated pipe (3) is connected to the exhaust gas treatment tower (7) through the exhaust fan (6). The gas treated by the exhaust gas treatment tower (7) is discharged from the exhaust pipe (8).

2. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 1, characterized in that, The rotating components are a rail-connecting rotating component (216) and a ground-connecting rotating component (215). The rail-connecting rotating component (216) and the ground-connecting rotating component (215) have the same structure. The rotating component consists of a rotating shaft and a mounting base. The mounting base is U-shaped. The rotating shaft is rotatably installed in the mounting base through a bearing. The rotating shaft of the rail-connecting rotating component (216) is connected to the rail (203). The mounting base is connected to the telescopic end of the hydraulic cylinder group (204). The rotating shaft of the ground-connecting rotating component (215) is connected to the bottom of the hydraulic cylinder group (204). The mounting base is fixed to the ground to accommodate the tilt angle freedom of the rail (203).

3. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 1, characterized in that, The supporting steel frame (201) and the track (203) are movably connected by a sliding component; The sliding component includes a bracket (218), a main wheel (219), and auxiliary wheels (220). The bracket (218) is installed at the bottom of the supporting steel frame (201). A rotatable main wheel (219) and two rotatable auxiliary wheels (220) are installed on the bracket (218). The main wheel (219) is located at the top of the track (203) and can roll on the top of the track (203). The auxiliary wheels (220) are located at the bottom of the track (203) and play a role in balancing and preventing slippage.

4. The device for collecting and treating the waste gas of the electrolytic manganese workshop according to claim 1, characterized in that, The telescopic cover (2) also includes an electric control component. The head support steel frame (201) is fixed on the track (203) and cannot be moved. The support steel frame (201) has wire holes. The electric control component mainly consists of a geared motor (214), a linkage shaft (211), a reel (210), and a wire rope (212). A side plate (213) is installed on the head support steel frame (201). The geared motor (214) and the linkage shaft (211) are both installed on the side plate (213). The output end of the geared motor (214) is connected to the linkage shaft (211). The geared motor (214) is fixed on the side plate (213). The linkage shaft (211) is rotatably installed on the side plate (213) through a bearing. Two reels (210) are installed at both ends of the linkage shaft (211). One end of the wire rope (212) is fixed on the reel (210), and the other end passes through the wire hole and is connected to the tail support steel frame (201).

5. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 1, characterized in that, The telescopic cover (2) also includes an air intake assembly; The intake assembly includes a ventilation pipe (206), an adjusting pipe (207), a docking end (208), a connecting pipe (205), and a tailpipe (209). The ventilation pipe (206) is installed on the support plate at the tail. The ventilation pipe (206) is a downward-curved pipe. The bottom of the ventilation pipe (206) is connected to the adjusting pipe (207). The docking end (208) is installed at the bottom of the adjusting pipe (207). The connecting pipe (205) is fixed on the carrier and located directly below the docking end (208). The docking end (208) is in the shape of an inverted bowl, covering the connecting pipe (205) to form a connection. When the top of the connecting pipe (205) is in complete contact with the docking end (208), the internal channel forms a connection.

6. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 5, characterized in that, The regulating pipe (207) includes an upper pipe ring (20701), a lower pipe ring (20702), a bellows pipe (20703), a gear (20704), a guide rail (20705), and a rack (20706). The upper pipe ring (20701) is connected to the ventilation pipe (206), and the lower pipe ring (20702) is connected to the docking end (208). The bellows pipe (20703) is fixed between the upper pipe ring (20701) and the lower pipe ring (20702). The upper pipe ring (20701) is provided with two sets of left-right symmetrical rotatable gears (20704) and guide rails (20705) located on both sides of the gears (20704). A slidable rack (20706) that meshes with the gears (20704) is installed in the guide rail (20705).

7. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 6, characterized in that, The lower ring (20702) is provided with anti-slip texture located directly below the guide rail (20705).

8. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 5, characterized in that, The tailpipe (209) is connected to the induced draft fan (5) through the induced draft pipe (4).

9. A device suitable for collecting and treating exhaust gases from an electrolytic manganese plant according to claim 5, characterized in that, A weighing sensor (217) is provided between the connecting pipe (205) and the carrier.

Images