A dust removal device for a closed electric furnace of ferrosilicon manganese alloy

Abstract

The present invention relates to the technical field of dust removal devices, and discloses a dust removal device for a closed electric furnace of ferrosilicon manganese alloy, including: a connecting pipe for communicating with the exhaust pipe of the closed electric furnace of ferrosilicon manganese alloy, a processing pipe fixedly connected and communicating with one end of the connecting pipe away from the closed electric furnace of ferrosilicon manganese alloy, a filtering part arranged in the processing pipe for filtering impurities in the flue gas discharged from the closed electric furnace of ferrosilicon manganese alloy, and a spraying part arranged on the processing pipe. The present invention adopts the technical means of combining a spiral baffle plate and a spraying part. By the spiral baffle plate, the flow rate of water passing through is reduced, while cooling the flue gas, the tar in the flue gas is liquefied. At the same time, the spiral baffle plate can also provide a place for the droplet-shaped tar to adhere to and gradually discharge with the water flow, which can effectively avoid the situation that the liquefied tar adheres to the filtering part and blocks it, overcomes the deficiencies of the prior art, and improves the practicability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal devices, and more specifically, it relates to a dust removal device for a closed electric furnace of ferrosilicon manganese alloy. Background Art

[0002] Ferrosilicon manganese alloy is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. During its production process, a closed electric furnace is usually required for heating treatment. A large amount of flue gas containing harmful substances will be generated during the operation of the closed electric furnace. Therefore, the flue gas needs to be pretreated before being discharged.

[0003] In the prior art, the dry treatment process or the wet treatment process is mostly used to pretreat the flue gas. Among them, the dry treatment process is a technology that uses physical, mechanical, chemical and other methods to treat waste gas, waste or pollutants without using water or other liquid media. The wet treatment process mainly refers to the "two reactors and one tower" wet treatment process, which mainly includes two reactors and one tower to pretreat waste water or flue gas containing pollutants such as heavy metals.

[0004] Although the above two treatment processes can better remove pollutants and impurities in the flue gas, in the actual operation process, since the flue gas discharged from the closed electric furnace of ferrosilicon manganese alloy contains a large amount of tar and dust, when the temperature of the tar drops to two hundred and thirty degrees, it will change from gaseous state to liquid state. The liquid tar has strong viscosity, is easy to adsorb the dust in the flue gas, adheres to the filtering device inside the pipeline, blocks the pipeline of the dust removal device adopting any one of the above two treatment processes, and affects its normal use, which has certain inconveniences. Summary of the Invention

[0005] The present invention provides a dust removal device for a closed electric furnace of ferrosilicon manganese alloy, and solves the technical problem that the liquid tar in the related technology has high viscosity, is easy to adsorb the dust in the flue gas, adheres to the inside of the pipeline, blocks the pipeline of the dust removal device adopting any one of the above two treatment processes, and affects its normal use.

[0006] The present invention provides a dust removal device for a closed electric furnace of ferrosilicon manganese alloy, including:

[0007] A connecting pipe for communicating with the exhaust pipe of the closed electric furnace of ferrosilicon manganese alloy;

[0008] A processing pipe fixedly connected and communicating with the end of the connecting pipe far away from the closed electric furnace of ferrosilicon manganese alloy;

[0009] A filtering part arranged in the processing pipe for filtering impurities in the flue gas discharged from the closed electric furnace of ferrosilicon manganese alloy;

[0010] A spraying part arranged on the processing pipe, and its water outlet end is located above the filtering part;

[0011] An oil absorption part is arranged in the treatment pipe and is used for adsorbing tar in the flue gas. It is located below the filtering part. The oil absorption part includes a spiral baffle.

[0012] A sewage discharge pipe is fixedly connected to and communicates with the lower end of the treatment pipe.

[0013] Preferably, it further includes a heat absorption part arranged in the treatment pipe. The heat absorption part includes a water collecting pipe arranged below the filtering part, and the opening of the water collecting pipe gradually narrows from top to bottom. A horizontal shaft is rotatably connected in the treatment pipe. A rotating plate is fixedly connected to the middle of the shaft body of the horizontal shaft. One end of the rotating plate is fixedly connected with a water receiving tray. A sealing plate is rotatably connected to the water receiving tray. A first counterweight is fixedly connected to the sealing plate. The other side of the rotating plate is fixedly connected with a second counterweight. The second counterweight is in contact and cooperation with the spiral baffle. The spiral baffle, the second counterweight, the rotating plate and the water receiving tray are all made of metal materials with good heat conduction performance.

[0014] Preferably, it further includes a plurality of mounting blocks fixedly connected to the inner wall of the treatment pipe. The upper surface of each mounting block is fixedly connected with a compression spring. The upper end of the compression spring is fixedly connected with the lower surface at the corresponding position of the spiral baffle.

[0015] Preferably, a spiral flow blocking rod is fixedly installed inside the plate body of the spiral baffle, and the length of the spiral flow blocking rod is equal to the length of the spiral baffle.

[0016] Preferably, a spiral drainage rod is fixedly installed on the lower side of the plate body of the spiral baffle. The spiral flow blocking rod has a first length, the spiral drainage rod has a second length, and the first length is greater than the second length.

[0017] Preferably, the filtering part includes an annular plate fixedly connected in the treatment pipe. A support frame is fixedly connected to the annular plate. A filter cloth bag is sleeved on the support frame. A metal filter bag adapted to the outer shape of the filter cloth bag is sleeved on the filter cloth bag. A plurality of positioning rods are fixedly connected to the upper surface of the annular plate. Positioning grooves for the positioning rods to penetrate are formed at corresponding positions on the metal filter bag.

[0018] Preferably, a horizontal plate is arranged in the treatment pipe. A pair of clamping grooves for the horizontal plate to be embedded are formed on the inner wall of the treatment pipe. The length of the horizontal plate is greater than the inner diameter of the treatment pipe. A bolt is threadedly connected to the middle of the horizontal plate. The lower end of the bolt is in contact and cooperation with the upper surface of the metal filter bag.

[0019] Preferably, the spraying portion includes a water inlet pipe detachably connected to the processing pipe, and an atomizing nozzle is installed at one end of the water inlet pipe extending into the processing pipe.

[0020] Preferably, the bottom of the water receiving tray is conical.

[0021] Preferably, a plurality of equidistantly arranged supporting legs are fixedly connected to the processing tube.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention adopts the technical means of cooperating with the spiral baffle and the spray part. The spiral baffle reduces the speed of water flow, cools the flue gas and liquefies the tar in the flue gas at the same time. At the same time, the spiral baffle can also provide droplet-shaped tar for attachment and gradually discharge it with the water flow, which can effectively avoid the liquefied tar from adhering to the filter part and clogging it, overcomes the shortcomings of the existing technology, and improves the practicality of the device.

[0024] 2. The present invention adopts technical means that match the oil absorption part and the heat absorption part, and uses the water in the water receiving tray to absorb heat, so as to avoid the temperature of the device itself being too high, which can effectively extend the service life of the device. At the same time, after the water in the water receiving tray is heated for a period of time, it is poured onto the spiral baffle under the action of gravity, and the heated water flow is used to flush the liquid tar attached to the spiral baffle, which has a better effect.

[0025] 3. The present invention adopts a technical means of coordinating a water receiving tray and a compression spring, utilizing the impact force when the water receiving tray is tilted, combined with the elastic force of the compression spring, to make the spiral baffle vibrate up and down, thereby accelerating the falling speed of the tar droplets attached to the lower side of the spiral baffle, avoiding the formation of lumps due to excessive attachment time, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a cross-sectional schematic diagram of the present invention for showing the internal structure of the processing tube;

[0028] Figure 3 This is an exploded view of the present invention for showing the filter portion;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the spray part of the present invention;

[0030] Figure 5 This is a schematic diagram of the overall structure of the oil absorption part of the present invention;

[0031] Figure 6 The present invention is used to demonstrateFigure 5 Schematic diagram of the overall structure after adjusting the perspective;

[0032] Figure 7 is a schematic diagram of the overall structure of the present invention for showing the heat absorption part;

[0033] Figure 8 is a front view structural schematic diagram of the present invention for showing the heat absorption part.

[0034] In the figure: 100, connecting pipe; 200, processing pipe; 300, filtering part; 400, spraying part; 500, oil absorption part; 600, sewage pipe; 700, heat absorption part;

[0035] 201, support feet;

[0036] 301, annular plate; 302, support frame; 303, filter cloth bag; 304, metal filter bag; 305, positioning rod; 306, cross plate; 307, bolt;

[0037] 401, water inlet pipe; 402, atomizing nozzle;

[0038] 501, spiral baffle; 502, mounting block; 503, compression spring; 504, spiral flow blocking rod; 505, spiral flow guiding rod;

[0039] 701, water collecting pipe; 702, horizontal axis; 703, rotating plate; 704, water receiving tray; 705, sealing plate; 706, first counterweight; 707, second counterweight. Detailed implementation manners

[0040] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. The functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0041] As Figure 1 - Figure 8As shown in the figure, this embodiment provides a dust removal device for a silicon-manganese alloy closed electric furnace, including: a connecting pipe 100 for communicating with the exhaust pipe of the silicon-manganese alloy closed electric furnace; a processing pipe 200 fixedly connected and communicating with one end of the connecting pipe 100 away from the silicon-manganese alloy closed electric furnace; a filtering part 300 arranged in the processing pipe 200 for filtering impurities in the flue gas discharged from the silicon-manganese alloy closed electric furnace; a spraying part 400 arranged on the processing pipe 200, and its water outlet end is located above the filtering part 300; an oil absorption part 500 arranged in the processing pipe 200 for adsorbing tar in the flue gas, and it is located below the filtering part 300. The oil absorption part 500 includes a spiral baffle 501; a sewage discharge pipe 600 fixedly connected and communicating with the lower end of the processing pipe 200.

[0042] The working principle and beneficial effects of the above technical solution are as follows: First, the flue gas discharged from the silicon-manganese alloy closed electric furnace is discharged into the processing pipe 200 through the connecting pipe 100 and discharged upward along the pipeline of the processing pipe 200. During this process, the flue gas first passes through the spiral baffle 501. When the water flow sprayed by the spraying part 400 flows downward along the spiral baffle 501, it reacts with the flue gas, reduces the temperature of the flue gas, liquefies the gaseous tar in the flue gas into tar droplets, adheres to the spiral baffle 501, and is washed downward along the spiral baffle 501 by the water flow, and finally discharged from the sewage discharge pipe 600 and enters the next processing procedure.

[0043] At the same time, the flue gas continues to rise, and the dust and other impurities inside it are intercepted by the filtering part 300. At the same time, the water flow sprayed by the upper spraying part 400 reversely flushes the filtering part 300. While cooling it, the dust and other impurities attached to the inner side of it are washed away, and finally discharged from the sewage discharge pipe 600.

[0044] This embodiment adopts the technical means of combining the spiral baffle 501 and the spraying part 400. By reducing the flow rate of the water flow through the spiral baffle 501, while cooling the flue gas, the tar component in the flue gas is liquefied. At the same time, the spiral baffle 501 can also provide a place for the tar in droplet form to adhere and gradually be discharged with the water flow, which can effectively avoid the situation that the liquefied tar adheres to the filtering part 300 and blocks it, overcomes the deficiencies of the prior art, and improves the practicability of this device.

[0045] In a specific embodiment: it also includes a heat absorption part 700 arranged in the processing tube 200, the heat absorption part 700 includes a water collecting pipe 701 arranged on the lower side of the filter part 300, and the opening of the water collecting pipe 701 gradually narrows from top to bottom, and a horizontal axis 702 is rotatably connected in the processing tube 200, and a rotating plate 703 is fixedly connected to the middle part of the axis of the horizontal axis 702, and one end of the rotating plate 703 is fixedly connected to a water receiving tray 704, and a sealing plate 705 is rotatably connected to the water receiving tray 704, and a first counterweight block 706 is fixedly connected to the sealing plate 705, and a second counterweight block 707 is fixedly connected to the other side of the rotating plate 703, and the second counterweight block 707 is in contact with the spiral deflector 501, and the spiral deflector 501, the second counterweight block 707, the rotating plate 703 and the water receiving tray 704 are all set to a metal material with good thermal conductivity.

[0046] The working principle and beneficial effects of the above technical scheme are as follows: the water collecting pipe 701 changes the trajectory of the falling water so that it falls into the water collecting pan 704, exchanges heat with the water collecting pan 704, reduces the temperature of the internal parts of the device, and at the same time, the water in the water collecting pan 704 is quickly heated. When there is too much water accumulated inside the water collecting pan 704, under the action of gravity, it rotates in the direction close to the spiral baffle 501 with the horizontal axis 702 as the center, and lifts the second counterweight block 707 until its lower edge collides with the spiral baffle 501. During this process, the first counterweight block 706 contacts and squeezes the inner wall of the treatment tube 200, and rotates under the reaction force of the inner wall, driving the sealing plate 705 to rotate, so that the heated water in the water collecting pan 704 is poured out from the gap opened by the sealing plate 705, and the heated water flows downward along the upper surface of the spiral baffle 501, flushing the tar droplets and other impurities on the spiral baffle 501. After the water is poured out, the weight of one side of the water receiving tray 704 becomes lighter. Under the action of the gravity of the second counterweight block 707, the water receiving tray 704 and the rotating plate 703 rotate in the opposite direction with the horizontal axis 702 as the axis to the initial position, and re-receive the water flow discharged from the water collecting pipe 701. The sealing plate 705 rotates in the opposite direction under the action of the gravity of the first counterweight block 706 and re-fits with the water receiving tray 704 to prevent the water inside it from flowing out. After the water receiving tray 704 is filled with water, the above process is repeated, and this cycle is repeated to rinse the stains on the spiral deflector 501.

[0047] In a specific embodiment: it also includes a plurality of mounting blocks 502 fixedly connected to the inner wall of the processing tube 200, and the upper surface of each mounting block 502 is fixedly connected to a compression spring 503, and the upper end of the compression spring 503 is fixedly connected to the lower surface of the corresponding position of the spiral deflector 501.

[0048] The working principle and beneficial effects of the above technical solution are as follows: After the amount of water accumulated inside the water receiving tray 704 is excessive, under the action of gravity, it rotates around the horizontal axis 702 towards the direction close to the spiral baffle 501 until its lower edge collides with the spiral baffle 501. The impact force when the water receiving tray 704 is tilted, combined with the elastic force of the compression spring 503, causes the spiral baffle 501 to vibrate up and down, accelerating the dropping speed of the tar droplets adhering to the lower side of the spiral baffle 501, preventing them from forming lumps due to excessive adhesion time and adsorbing a large amount of dust in the flue gas, making it difficult to clean, and further improving the practicality of this device.

[0049] In a specific embodiment: A spiral flow blocking rod 504 is fixedly installed inside the plate body of the spiral baffle 501, and the length of the spiral flow blocking rod 504 is equal to the length of the spiral baffle 501.

[0050] The working principle and beneficial effects of the above technical solution are as follows: The setting of the spiral flow blocking rod 504 can prevent water from spilling from the edge of the spiral baffle 501, enabling it to flow downward along the spiral baffle 501. While reducing its temperature, it washes away the tar droplets adhering to its surface.

[0051] In a specific embodiment: A spiral drainage rod 505 is fixedly installed on the lower side of the plate body of the spiral baffle 501. The spiral flow blocking rod 504 has a first length, the spiral drainage rod 505 has a second length, and the first length is greater than the second length.

[0052] The working principle and beneficial effects of the above technical solution are as follows: The spiral drainage rod 505 can gather the tar droplets adhering to the lower surface of the spiral baffle 501 together as much as possible, and finally drip along the spiral drainage rod 505 to the middle position of the spiral baffle 501. And the first length is greater than the second length, which can prevent some tar droplets from directly dripping onto the inner wall of the processing pipe 200 from the lower end of the spiral drainage rod 505 to form lumps.

[0053] In a specific embodiment: The filtering part 300 includes an annular plate 301 fixedly connected inside the processing pipe 200. A support frame 302 is fixedly connected to the annular plate 301. A filter cloth bag 303 is sleeved on the support frame 302. A metal filter bag 304 adapted to its outer shape is sleeved on the filter cloth bag 303. A plurality of positioning rods 305 are fixedly connected to the upper surface of the annular plate 301. Positioning grooves for the positioning rods 305 to penetrate are formed at corresponding positions on the metal filter bag 304.

[0054] The working principle and beneficial effects of the above technical solution are as follows: First, the opening of the filter cloth bag 303 is set downwardly on the support frame 302, then the opening of the metal filter bag 304 is set downwardly and sleeved on the filter cloth bag 303. Finally, the position of the metal filter bag 304 is adjusted so that multiple positioning rods 305 penetrate into the corresponding positioning grooves. After installation, the filter cloth bag 303 can filter out dust and other impurities in the flue gas. At the same time, the water flow sprayed by the atomizing nozzle 402 above it performs reverse flushing on it. While cooling it, the dust and other impurities attached to its inner side are washed away and finally discharged from the sewage pipe 600.

[0055] In a specific embodiment: A cross plate 306 is arranged in the processing pipe 200. A pair of clamping grooves for the cross plate 306 to be embedded are opened on the inner wall of the processing pipe 200. The length of the cross plate 306 is greater than the inner diameter of the processing pipe 200, and a bolt 307 is threadedly connected to the middle of the cross plate 306. The lower end of the bolt 307 is in contact and cooperation with the upper surface of the metal filter bag 304.

[0056] The working principle and beneficial effects of the above technical solution are as follows: First, one end of the cross plate 306 is obliquely inserted into one of the clamping grooves, then the cross plate 306 is laid flat and the other end is inserted into the other clamping groove. Then, the bolt 307 is screwed until the lower end of the bolt 307 is firmly pressed against the metal filter bag 304. When disassembling, loosen the bolt 307 and move the cross plate 306 in the direction close to any one of the clamping grooves so that the other side of the cross plate 306 is lifted out of the corresponding clamping groove. Then, tilt the cross plate 306 to take it out.

[0057] In a specific embodiment: The spraying part 400 includes a water inlet pipe 401 detachably connected to the processing pipe 200. One end of the water inlet pipe 401 extending into the processing pipe 200 is provided with an atomizing nozzle 402.

[0058] The working principle and beneficial effects of the above technical solution are as follows: One end of the water inlet pipe 401 away from the processing pipe 200 is connected to a high-pressure water pump, and the water flow is transported through the water inlet pipe 401 to the atomizing nozzle 402 and then sprayed out.

[0059] In a specific embodiment: The bottom of the water receiving tray 704 is arranged in a conical shape.

[0060] The working principle and beneficial effects of the above technical solution are as follows: By setting the bottom of the water receiving tray 704 in a conical shape, the tar droplets attached to the water receiving tray 704 gather at the tip position at the bottom of the water receiving tray 704 under the action of gravity and then drip onto the rotating plate 703 and slide along the rotating plate 703 to the spiral baffle 501. It can effectively prevent tar from dripping to places where the water flow is difficult to wash, improving the practicability of this device.

[0061] In a specific embodiment: A plurality of support feet 201 are fixedly connected to the processing pipe 200 at equal intervals.

[0062] The working principle and beneficial effects of the above technical solution are: The support feet 201 can support the processing pipe 200, improving its stability.

[0063] Working principle:

[0064] First, the flue gas discharged from the silicon-manganese alloy closed electric furnace is discharged into the processing pipe 200 through the connecting pipe 100 and discharged upward along the pipeline of the processing pipe 200. During this process, the flue gas first passes through the spiral baffle 501. When the water flow sprayed by the spraying part 400 flows downward along the spiral baffle 501, it reacts with the flue gas, reducing the temperature of the flue gas, liquefying the gaseous tar in the flue gas into tar droplets, attaching to the spiral baffle 501, being washed downward along the spiral baffle 501 by the water flow, and finally discharged from the sewage pipe 600 and entering the next processing step.

[0065] At the same time, the flue gas continues to rise, and the dust and other impurities inside it are intercepted by the filtering part 300. At the same time, the water flow sprayed by the atomizing nozzle 402 above flushes it in the reverse direction. While cooling it, the dust and other impurities attached to its inner side are washed away, and finally discharged from the sewage pipe 600.

[0066] The water collecting pipe 701 changes the trajectory of the falling water, making it fall into the water receiving tray 704, where it undergoes heat exchange with the water receiving tray 704, reducing the temperature of the internal parts of the device. At the same time, the water body in the water receiving tray 704 is quickly heated. After too much water accumulates in the water receiving tray 704, under the action of gravity, it rotates around the horizontal axis 702 in the direction close to the spiral baffle 501, tilting the second counterweight 707 until its lower edge collides with the spiral baffle 501.

[0067] During this process, the first counterweight 706 contacts and presses against the inner wall of the treatment pipe 200, rotates under the reaction force of the inner wall, drives the sealing plate 705 to rotate, and causes the heated water in the water receiving tray 704 to pour out from the gap opened by the sealing plate 705. The heated water flows downward along the upper surface of the spiral baffle 501, flushing the tar droplets and other impurities on the spiral baffle 501. After the water is poured out, the weight on one side of the water receiving tray 704 becomes lighter. Under the gravitational force of the second counterweight 707, the water receiving tray 704 and the rotating plate 703 rotate reversely around the horizontal axis 702 to the initial position, and catch the water discharged from the water collecting pipe 701 again. The sealing plate 705 rotates reversely under the gravitational force of the first counterweight 706 and fits together with the water receiving tray 704 again to prevent the water inside from flowing out. After the water receiving tray 704 is filled with water, the above process is repeated. In this way, the stains on the spiral baffle 501 are repeatedly washed with the heated water flow, preventing the tar droplets from staying for too long and forming lumps.

[0068] At the same time, the impact force when the water receiving tray 704 is tilted, combined with the elastic force of the compression spring 503, causes the spiral baffle 501 to vibrate up and down, accelerating the dropping speed of the tar droplets attached to the lower side of the spiral baffle 501, preventing them from forming lumps due to excessive attachment time and adsorbing a large amount of dust in the flue gas, which makes them difficult to clean, and further improving the practicality of this device.

[0069] The embodiments of the present invention have been described above, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A dust removal device for a silicon manganese alloy closed electric furnace, characterized in that, Comprising: A connecting pipe (100) for communicating with the exhaust pipe of a closed electric furnace for ferrosilicon manganese alloy; A processing pipe (200) fixedly connected and communicating with one end of the connecting pipe (100) far from the closed electric furnace for ferrosilicon manganese alloy; A filtering section (300) arranged inside the processing pipe (200) for filtering impurities in the flue gas discharged from the closed electric furnace for ferrosilicon manganese alloy; A spraying section (400) arranged on the processing pipe (200), and its water outlet end is located above the filtering section (300); An oil absorption section (500) arranged inside the processing pipe (200) for adsorbing tar in the flue gas, and it is located below the filtering section (300). The oil absorption section (500) includes a spiral baffle plate (501); A sewage discharge pipe (600) fixedly connected and communicating with the lower end of the processing pipe (200); It further includes a heat absorption section (700) arranged inside the processing pipe (200). The heat absorption section (700) includes a water collecting pipe (701) arranged on the lower side of the filtering section (300), and the opening of the water collecting pipe (701) gradually narrows from top to bottom. A transverse axis (702) is rotatably connected inside the processing pipe (200). A rotating plate (703) is fixedly connected to the middle of the shaft body of the transverse axis (702). A water receiving tray (704) is fixedly connected to one end of the rotating plate (703). A sealing plate (705) is rotatably connected to the water receiving tray (704). A first counterweight (706) is fixedly connected to the sealing plate (705). A second counterweight (707) is fixedly connected to the other side of the rotating plate (703). The second counterweight (707) is in contact and cooperation with the spiral baffle plate (501), and the spiral baffle plate (501), the second counterweight (707), the rotating plate (703) and the water receiving tray (704) are all made of metal materials with good heat conduction performance.

2. The dust removal device for a silicon manganese alloy closed electric furnace according to claim 1, wherein It further includes a plurality of mounting blocks (502) fixedly connected to the inner wall of the processing pipe (200). A compression spring (503) is fixedly connected to the upper surface of each mounting block (502), and the upper end of the compression spring (503) is fixedly connected to the lower surface of the corresponding position of the spiral baffle plate (501).

3. The dust removal device for a ferrosilicon manganese closed electric furnace according to claim 2, characterized in that, A spiral flow blocking rod (504) is fixedly installed inside the plate body of the spiral baffle plate (501), and the length of the spiral flow blocking rod (504) is equal to the length of the spiral baffle plate (501).

4. A silicon-manganese alloy closed electric furnace dust removal device according to claim 3, characterized in that, A spiral drainage rod (505) is fixedly installed on the lower side of the plate body of the spiral baffle plate (501). The spiral flow blocking rod (504) has a first length, the spiral drainage rod (505) has a second length, and the first length is greater than the second length.

5. The dust removal device for a silicon manganese alloy closed electric furnace according to claim 4, characterized in that, The filtering part (300) includes an annular plate (301) fixedly connected inside the processing pipe (200). A support frame (302) is fixedly connected to the annular plate (301). A filter cloth bag (303) is sleeved on the support frame (302). A metal filter bag (304) adapted to its outer shape is sleeved on the filter cloth bag (303). A plurality of positioning rods (305) are fixedly connected to the upper surface of the annular plate (301). Positioning grooves for the positioning rods (305) to penetrate are formed at corresponding positions on the metal filter bag (304).

6. The dust removal device for a ferrosilicon manganese closed electric furnace according to claim 5, characterized in that A horizontal plate (306) is arranged inside the processing pipe (200). A pair of clamping grooves for the horizontal plate (306) to be embedded are formed on the inner wall of the processing pipe (200). The length of the horizontal plate (306) is greater than the inner diameter of the processing pipe (200). A bolt (307) is threadedly connected to the middle of the horizontal plate (306). The lower end of the bolt (307) is in contact and cooperation with the upper surface of the metal filter bag (304).

7. The dust removal device for a silicon manganese alloy closed electric furnace according to claim 6, characterized in that, The spraying part (400) includes a water inlet pipe (401) detachably connected to the processing pipe (200). An atomizing nozzle (402) is installed at one end of the water inlet pipe (401) extending inside the processing pipe (200).

8. The dust removal device for a silicon manganese alloy closed electric furnace according to claim 7, characterized in that, The bottom of the water receiving tray (704) is arranged in a conical shape.

9. The dust removal device for a ferrosilicon manganese closed electric furnace according to claim 8, wherein, A plurality of support feet (201) are fixedly connected to the processing pipe (200) and are arranged at equal intervals.

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