Dust removal device for silicon-manganese alloy closed electric furnace

Abstract

The invention relates to the technical field of dust removal devices, and discloses a silicon-manganese alloy closed electric furnace dust removal device which comprises a connecting pipe used for being communicated with an exhaust pipeline of a silicon-manganese alloy closed electric furnace, a treatment pipe fixedly connected and communicated with one end, away from the silicon-manganese alloy closed electric furnace, of the connecting pipe, and a filtering part arranged in the treatment pipe and used for filtering dust in the silicon-manganese alloy closed electric furnace. The treatment pipe is used for filtering impurities in flue gas exhausted by the silicon-manganese alloy closed electric furnace, and the spraying part is arranged on the treatment pipe. The technical means that the spiral baffle plate and the spraying part are matched is adopted, the flowing speed of water flow is reduced through the spiral baffle plate, tar in smoke is liquefied while the smoke is cooled, meanwhile, the spiral baffle plate can allow droplet-shaped tar to adhere to and be gradually discharged along with the water flow, and therefore the tar can be effectively sprayed out. The situation that liquefied tar is attached to the filtering part and blocks the filtering part can be effectively avoided, the defects in the prior art are overcome, and the practicability of the device is improved.

Description

Technical Field

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

[0002] Silicon manganese alloy is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. During the production process, it is usually necessary to use a closed electric furnace for heating treatment. The closed electric furnace will produce a large amount of flue gas containing harmful substances during operation, so the flue gas needs to be pre-treated before it can be discharged.

[0003] Existing technologies mostly use dry treatment processes or wet treatment processes to pretreat flue gas. The dry treatment process is a technology that treats waste gas, waste materials or pollutants by physical, mechanical, chemical or other means without using water or other liquid media. The wet treatment process mainly refers to the "two-reactor and one-tower" wet treatment process, which mainly includes two reactors and one tower to pretreat wastewater or flue gas containing pollutants such as heavy metals.

[0004] Although the above two treatment processes can effectively remove pollutants and impurities in the flue gas, in the actual operation process, since the flue gas discharged from the closed silicon-manganese alloy electric furnace contains a large amount of tar and dust, the tar will be converted from gas to liquid when the temperature drops to 230 degrees. The liquid tar has strong viscosity and is easy to absorb the dust in the flue gas and adhere to the filter device inside the pipe. The pipe of the dust removal device using any of the above two treatment processes will be blocked, affecting its normal use, and there are certain inconveniences. Summary of the invention

[0005] The present invention provides a silicon-manganese alloy closed electric furnace dust removal device, which solves the technical problem in the related art that liquid tar has high viscosity, is easy to absorb dust in the flue gas, adheres to the inside of the pipeline, and blocks the pipeline of the dust removal device using any of the above two treatment processes, affecting its normal use.

[0006] The present invention provides a dust removal device for a closed silicon-manganese alloy electric furnace, comprising:

[0007] A connecting pipe, used to connect with the exhaust pipe of the silicon-manganese alloy closed electric furnace;

[0008] A processing pipe is fixedly connected and communicated with an end of the connecting pipe away from the silicon-manganese alloy closed electric furnace;

[0009] A filter unit, arranged in the processing tube, for filtering impurities in the flue gas discharged from the silicon-manganese alloy closed electric furnace;

[0010] A spraying part, which is arranged on the processing tube and has a water outlet located above the filtering part;

[0011] An oil absorption part is arranged in the processing tube, used for absorbing tar in the flue gas, and is located below the filtering part, and the oil absorption part includes a spiral baffle;

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

[0013] Preferably, it also includes a heat absorption part arranged in the treatment tube, the heat absorption part includes a water collecting pipe arranged at the lower side of the filter part, and the opening of the water collecting pipe gradually narrows from top to bottom, and a horizontal axis is rotatably connected in the treatment tube, a rotating plate is fixedly connected to the middle part of the axis of the horizontal axis, one end of the rotating plate is fixedly connected to 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, and a second counterweight is fixedly connected to the other side of the rotating plate, the second counterweight is in contact with the spiral baffle, and the spiral baffle, the second counterweight, the rotating plate and the water receiving tray are all set to a metal material with good thermal conductivity.

[0014] Preferably, it also includes a plurality of mounting blocks fixedly connected to the inner wall of the processing tube, each mounting block having a compression spring fixedly connected to its upper surface, and the upper end of the compression spring is fixedly connected to the lower surface of the corresponding position of the spiral baffle.

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

[0016] Preferably, a spiral guide rod is fixedly mounted on the lower side of the plate body of the spiral baffle plate, the spiral baffle rod has a first length, the spiral guide rod has a second length, and the first length is greater than the second length.

[0017] Preferably, the filter portion includes an annular plate fixedly connected to the processing tube, a support frame fixedly connected to the annular plate, a filter cloth bag is sleeved on the support frame, a metal filter bag matching its shape is sleeved on the filter cloth bag, a plurality of positioning rods are fixedly connected to the upper surface of the annular plate, and positioning grooves for the positioning rods to penetrate into corresponding positions on the metal filter bag.

[0018] Preferably, a transverse plate is provided in the processing tube, and a pair of slots for the transverse plate to be embedded in the inner wall of the processing tube are provided. The length of the transverse plate is greater than the inner diameter of the processing tube, and a bolt is threadedly connected to the middle part of the transverse plate, and the lower end of the bolt is in contact with the upper surface of the metal filter bag.

[0019] Preferably, the spraying part comprises 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 configured in a cone shape.

[0021] Preferably, a plurality of equidistantly arranged supporting feet 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 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 prior art and improves the practicability of the device.

[0024] 2. The present invention adopts technical means that cooperate with 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 device itself from being overheated, and can effectively extend the service life of the device. At the same time, after a period of heating and temperature rise, the water in the water receiving tray 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 cooperating with a water receiving tray and a compression spring, and utilizes the impact force when the water receiving tray is tilted, in combination 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 It is an exploded view of the present invention for showing the filter part;

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

[0030] Figure 5 It 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 demonstrate Figure 5 Schematic diagram of the overall structure after adjusting the viewing angle;

[0032] Figure 7 It is a schematic diagram of the overall structure of the heat absorbing part of the present invention;

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

[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 leg;

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

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

[0038] 501, spiral baffle; 502, mounting block; 503, compression spring; 504, spiral choke rod; 505, spiral guide rod;

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

[0040] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0041] like Figure 1 - Figure 8As shown, the present embodiment provides a silicon-manganese alloy closed electric furnace dust removal device, including: a connecting pipe 100, used to be connected to the exhaust duct of the silicon-manganese alloy closed electric furnace, a processing pipe 200, fixedly connected and connected to the end of the connecting pipe 100 away from the silicon-manganese alloy closed electric furnace, a filter 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 spray part 400, arranged on the processing pipe 200, and its water outlet end is located above the filter part 300, an oil absorption part 500, arranged in the processing pipe 200, for absorbing tar in the flue gas, and it is located below the filter part 300, the oil absorption part 500 includes a spiral baffle 501, and a sewage pipe 600, which is fixedly connected and connected to 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 treatment pipe 200 through the connecting pipe 100, and is discharged upward along the pipeline of the treatment pipe 200. In this process, the flue gas first passes through the spiral baffle 501. During the process of the water flow sprayed from the spray part 400 flowing downward along the spiral baffle 501, it reacts with the flue gas to reduce the temperature of the flue gas, and liquefies the gaseous tar in the flue gas into tar droplets, which adhere to the spiral baffle 501 and are washed downward along the spiral baffle 501 by the water flow, and are finally discharged from the sewage pipe 600 and enter the next treatment process.

[0043] At the same time, the smoke continues to rise, and the dust and other impurities inside it are intercepted by the filter part 300. At the same time, the water flow sprayed from the upper spray part 400 back-flushes the filter part 300, cooling it down while washing away the dust and other impurities attached to its inner side, and finally discharged from the sewage pipe 600.

[0044] This embodiment adopts the technical means of cooperating with the spiral baffle 501 and the spray part 400. The spiral baffle 501 reduces the speed of water flow, cools the flue gas and liquefies the tar components in the flue gas. At the same time, the spiral baffle 501 can also provide droplet-shaped tar for attachment and gradually discharge it with the water flow, which can effectively prevent the liquefied tar from adhering to the filter part 300 and clogging it, thereby overcoming the shortcomings of the prior art and improving the practicability of the 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, 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 baffle plate 501, and the spiral baffle plate 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 receiving tray 704, exchanges heat with the water receiving tray 704, reduces the temperature of the internal parts of the device, and at the same time, the water in the water receiving tray 704 is quickly heated. When too much water accumulates inside the water receiving tray 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, rotates under the reaction force of the inner wall, and drives the sealing plate 705 to rotate, so that the heated water in the water receiving tray 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 gravity of the second counterweight block 707, the water receiving tray 704 and the rotating plate 703 rotate in the opposite direction to the initial position with the horizontal axis 702 as the axis, 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 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 baffle 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, each mounting block 502 is fixedly connected to the upper surface of 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 baffle 501.

[0048] The working principle and beneficial effects of the above technical solution are as follows: when too much water accumulates inside the water collecting tray 704, under the action of gravity, it rotates with the horizontal axis 702 as the center in the direction close to the spiral baffle 501 until its lower edge collides with the spiral baffle 501. The impact force when the water collecting tray 704 tips over, combined with the elastic force of the compression spring 503, causes the spiral baffle 501 to vibrate up and down, thereby accelerating the falling speed of tar droplets attached to the lower side of the spiral baffle 501, preventing the tar droplets from adhering to the lower side of the spiral baffle 501 for too long and absorbing a large amount of dust in the flue gas to form lumps, which becomes difficult to clean, thereby further improving the practicality of the device.

[0049] In a specific embodiment: a spiral baffle rod 504 is fixedly installed on the inner side of the spiral baffle plate 501 , and the length of the spiral baffle rod 504 is equal to the length of the spiral baffle plate 501 .

[0050] The working principle and beneficial effects of the above technical solution are as follows: the setting of the spiral baffle rod 504 can prevent water from spilling from the edge of the spiral baffle 501, so that it can flow downward along the spiral baffle 501, lowering its temperature while flushing away the tar droplets attached to its surface.

[0051] In a specific embodiment: a spiral guide rod 505 is fixedly installed on the lower side of the plate body of the spiral baffle plate 501, the spiral blocking rod 504 has a first length, the spiral guide 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 attached to the lower surface of the spiral baffle 501 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 dripping directly from the lower end of the spiral drainage rod 505 to the inner wall of the treatment tube 200 to form lumps.

[0053] In a specific embodiment: the filter part 300 includes an annular plate 301 fixedly connected to the processing tube 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 matching its 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, and corresponding positions on the metal filter bag 304 are penetrated by positioning grooves for the positioning rods 305 to penetrate.

[0054] The working principle and beneficial effects of the above technical solution are as follows: first, the filter cloth bag 303 is mounted on the support frame 302 with the opening facing downward, and then the metal filter bag 304 is mounted on the filter cloth bag 303 with the opening facing downward, and finally the position of the metal filter bag 304 is adjusted so that the multiple positioning rods 305 are all inserted into the corresponding positioning grooves. The installed filter cloth bag 303 can filter out the dust and other impurities in the flue gas, and at the same time, the water flow sprayed from the atomizing nozzle 402 above it back-flushes it, cooling it down while flushing away the dust and other impurities attached to its inner side, and finally discharges it from the sewage pipe 600.

[0055] In a specific embodiment: a transverse plate 306 is provided in the processing tube 200, and a pair of slots for the transverse plate 306 to be embedded are opened on the inner wall of the processing tube 200, the length of the transverse plate 306 is greater than the inner diameter of the processing tube 200, and a bolt 307 is threadedly connected to the middle part of the transverse plate 306, and the lower end of the bolt 307 is in contact 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, insert one end of the horizontal plate 306 obliquely into one of the slots, then lay the horizontal plate 306 flat, insert the other end into the other slot, and then tighten the bolt 307 until the lower end of the bolt 307 and the metal filter bag 304 are pressed against each other. When disassembling, loosen the bolt 307, move the horizontal plate 306 in the direction close to any one of the slots, so that the other side of the horizontal plate 306 is lifted out of the corresponding slot, and then tilt the horizontal 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 , and an atomizing nozzle 402 is installed at one end of the water inlet pipe 401 extending into the processing pipe 200 .

[0058] The working principle and beneficial effects of the above technical solution are as follows: a high-pressure water pump is connected to one end of the water inlet pipe 401 away from the treatment pipe 200, and water 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 configured 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 into a cone shape, the tar droplets attached to the water receiving tray 704 are gathered at the tip of 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, which can effectively prevent tar from dripping to places that are difficult to be washed by water flow, thereby improving the practicality of the device.

[0061] In a specific embodiment: a plurality of support legs 201 equidistantly arranged are fixedly connected to the processing tube 200 .

[0062] The working principle and beneficial effects of the above technical solution are as follows: the supporting legs 201 can support the processing tube 200 to improve its stability.

[0063] Working principle:

[0064] First, the flue gas discharged from the silicon-manganese alloy closed electric furnace is discharged into the treatment pipe 200 through the connecting pipe 100, and is discharged upward along the pipeline of the treatment pipe 200. In this process, the flue gas first passes through the spiral baffle 501. The water flow sprayed from the spray part 400 reacts with the flue gas while flowing downward along the spiral baffle 501, thereby reducing the temperature of the flue gas and liquefying the tar in the flue gas into tar droplets. The tar droplets adhere to the spiral baffle 501, and are washed downward along the spiral baffle 501 by the water flow, and are finally discharged from the sewage pipe 600 to enter the next treatment process.

[0065] At the same time, the smoke continues to rise, and the dust and other impurities inside it are intercepted by the filter unit 300. At the same time, the water flow sprayed from the atomizing nozzle 402 above reversely flushes it, cooling it down while washing away the dust and other impurities attached to its inside, and finally discharged from the sewage pipe 600.

[0066] The water collecting pipe 701 changes the trajectory of the falling water so that it falls into the water receiving tray 704, and exchanges heat with the water receiving tray 704 to reduce the temperature of the internal parts of the device. At the same time, the water in the water receiving tray 704 is quickly heated. When too much water accumulates inside the water receiving tray 704, under the action of gravity, it rotates with the horizontal axis 702 as the center of the circle in a direction close to the spiral baffle 501, and lifts the second counterweight block 707 until its lower edge collides with the spiral baffle 501.

[0067] 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 receiving tray 704 is poured out from the gap opened in the sealing plate 705, and the heated water flows downward along the upper surface of the spiral baffle plate 501, flushing the tar droplets and other impurities on the spiral baffle plate 501. After the water is poured out, the weight of one side of the water receiving tray 704 becomes lighter. Under the action of gravity of the second counterweight block 707, the water receiving tray 704 and the rotating plate 703 rotate in the opposite direction to the initial position with the horizontal axis 702 as the axis, 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 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 the cycle is repeated. The heated water flow is used to repeatedly rinse the stains on the spiral baffle 501 to prevent the tar droplets from staying too long and forming lumps.

[0068] At the same time, the impact force when the water 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 falling speed of the tar droplets attached to the lower side of the spiral baffle 501, avoiding the formation of lumps due to long-term attachment and absorption of a large amount of dust in the flue gas, which becomes difficult to clean, thereby further improving the practicality of the device.

[0069] The above describes an embodiment of the present invention, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms, all of which are protected by this embodiment.

Claims

1. A silicon-manganese alloy closed electric furnace dust removal device, characterized in that: include: A connecting pipe (100) is used to be connected to an exhaust pipe of a silicon-manganese alloy sealed electric furnace; The processing tube (200) is fixedly connected to and communicates with the end of the connecting tube (100) away from the silicon-manganese alloy closed electric furnace; A filter unit (300) is arranged in the processing tube (200) and is used to filter impurities in the flue gas discharged from the silicon-manganese alloy closed electric furnace; A spraying part (400) is arranged on the processing pipe (200), and a water outlet end thereof is located above the filtering part (300); An oil absorption part (500) is arranged in the processing tube (200) and is used to absorb tar in the smoke. The oil absorption part (500) is located below the filtering part (300). The oil absorption part (500) includes a spiral baffle (501); The sewage discharge pipe (600) is fixedly connected to and communicates with the lower end of the treatment pipe (200).

2. A silicon-manganese alloy closed electric furnace dust removal device according to claim 1, characterized in that: The heat absorbing part (700) is arranged in the processing tube (200), and the heat absorbing part (700) includes a water collecting pipe (701) arranged at the lower side of the filtering part (300), and the opening of the water collecting pipe (701) gradually narrows from top to bottom. The processing tube (200) is rotatably connected with a transverse axis (702), and a rotating plate (703) is fixedly connected to the middle part of the shaft body of the transverse axis (702), and one end of the rotating plate (703) is fixedly connected to a water receiving tray (704). A sealing plate (705) is rotatably connected to the disk (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 with the spiral baffle (501), and the spiral baffle (501), the second counterweight (707), the rotating plate (703) and the water receiving tray (704) are all made of metal material with good thermal conductivity.

3. A silicon-manganese alloy sealed electric furnace dust removal device according to claim 2, characterized in that: It also includes a plurality of mounting blocks (502) fixedly connected to the inner wall of the processing tube (200), and each mounting block (502) is fixedly connected to the upper surface of 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 baffle (501).

4. A silicon-manganese alloy closed electric furnace dust removal device according to claim 3, characterized in that: A spiral baffle rod (504) is fixedly mounted on the inner side of the plate body of the spiral baffle plate (501), and the length of the spiral baffle rod (504) is equal to the length of the spiral baffle plate (501).

5. A silicon-manganese alloy sealed electric furnace dust removal device according to claim 4, characterized in that: A spiral guide rod (505) is fixedly mounted 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 guide rod (505) has a second length, and the first length is greater than the second length.

6. A silicon-manganese alloy sealed electric furnace dust removal device according to claim 5, characterized in that: The filtering part (300) comprises an annular plate (301) fixedly connected to the processing tube (200), a support frame (302) fixedly connected to the annular plate (301), a filter bag (303) sleeved on the support frame (302), a metal filter bag (304) matching its shape sleeved on the filter bag (303), a plurality of positioning rods (305) fixedly connected to the upper surface of the annular plate (301), and positioning grooves for the positioning rods (305) to penetrate are provided at corresponding positions on the metal filter bag (304).

7. The dust removal device for a closed silicon-manganese alloy electric furnace according to claim 6, characterized in that: A transverse plate (306) is arranged inside the processing tube (200), and a pair of slots for the transverse plate (306) to be inserted are opened on the inner wall of the processing tube (200), the length of the transverse plate (306) is greater than the inner diameter of the processing tube (200), and a bolt (307) is threadedly connected to the middle part of the transverse plate (306), and the lower end of the bolt (307) is in contact with the upper surface of the metal filter bag (304).

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

9. A silicon-manganese alloy sealed electric furnace dust removal device according to claim 8, characterized in that: The bottom of the water receiving tray (704) is arranged in a cone shape.

10. A silicon-manganese alloy sealed electric furnace dust removal device according to claim 9, characterized in that: The processing tube (200) is fixedly connected to a plurality of supporting legs (201) arranged at equal distances.

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