CN219722225U

CN219722225U - Dust removing device for electric furnace

Info

Publication number: CN219722225U
Application number: CN202320729421.2U
Authority: CN
Inventors: 邓小东; 曹文强
Original assignee: Inner Mongolia Xinchuang Metallurgy Co ltd
Current assignee: Inner Mongolia Xinchuang Metallurgy Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-09-22
Anticipated expiration: 2033-04-06

Abstract

The utility model provides an electric furnace dust removing device, comprising: an electric furnace, a bag-type dust remover and a cooling assembly; a smoke outlet is arranged on the electric furnace; the bag-type dust collector is provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with the smoke outlet through a first pipeline, and the bottom of the bag-type dust collector is provided with a first ash outlet; the bag-type dust collector comprises an outer shell and an inner shell, a sealing cavity is formed between the inner shell and the outer shell, and a first through hole and a second through hole are respectively formed in the outer side walls of the upper section and the lower section of the outer shell; the cooling assembly comprises a water inlet pipeline, a cooler and a cooling pipeline; one end of the water inlet pipeline is communicated with the water inlet of the cooler, the water outlet of the cooler is communicated with one end of the cooling pipeline, and the other end of the cooling pipeline sequentially penetrates through the first through hole, the sealing cavity and the second through hole and is communicated with the water inlet pipeline. According to the cooling device, the cooling component is used for cooling the bag-type dust collector, so that the bag-type dust collector is prevented from being damaged due to overhigh temperature, and the cooling water is recycled.

Description

Dust removing device for electric furnace

Technical Field

The utility model relates to a dust removing technology, in particular to an electric furnace dust removing device.

Background

The electric furnace is a heating furnace for converting electric energy in the furnace into heat to heat a workpiece, and can be classified into a resistance furnace, an induction furnace, an arc furnace, a plasma furnace, an electron beam furnace, and the like. Compared with a fuel furnace, the electric furnace has the advantages that: the furnace atmosphere is easy to control, the material heating is fast, the heating temperature is high, the temperature is easy to control, the production process is easy to realize mechanization and automation, the labor sanitation condition is good, the heat efficiency is high, the product quality is good, the environment is more friendly, and the environmental problem which is getting worse is facilitated to be relieved.

The electric furnace can generate high-temperature flue gas in the process of heating the workpiece, and if the high-temperature flue gas contains a large amount of heat and dust, the high-temperature flue gas can cause serious pollution to the atmosphere, so that the high-temperature flue gas needs to be treated by the electric furnace dust removing device and then is discharged, and the environmental pollution caused by the high-temperature flue gas directly discharged by the electric furnace is avoided. In the existing electric furnace dust removing device, high-temperature flue gas carries a large amount of heat in the dust removing process, so that a certain influence is caused on the dust remover, and the service life of the electric furnace dust removing device and the dust removing effect are reduced.

Disclosure of Invention

The utility model provides an electric furnace dust removing device which is used for solving the technical problems described in the background technology.

In order to solve the technical problems, the utility model is realized by adopting the following technical problems:

the utility model provides an electric furnace dust removing device, which comprises an electric furnace, a cloth bag dust remover and a cooling assembly;

a smoke outlet is arranged on the electric furnace;

the bag-type dust collector is provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with the smoke outlet through a first pipeline, and the bottom of the bag-type dust collector is provided with a first ash outlet; the bag-type dust collector comprises an outer shell and an inner shell, a sealing cavity is formed between the inner shell and the outer shell, and a first through hole and a second through hole are respectively formed in the outer side walls of the upper section and the lower section of the outer shell;

the cooling assembly comprises a water inlet pipeline, a cooler and a cooling pipeline; one end of the water inlet pipeline is communicated with the water inlet of the cooler, the water outlet of the cooler is communicated with one end of the cooling pipeline, and the other end of the cooling pipeline sequentially penetrates through the first through hole, the sealing cavity and the second through hole and is communicated with the water inlet pipeline.

Optionally, the cooling pipeline comprises a first pipe section, a spiral pipe section and a second pipe section which are sequentially communicated;

the spiral pipe section is wound on the outer wall of the inner shell, one end of the first pipe section is communicated with the water outlet of the cooler, the other end of the first pipe section penetrates through the first through hole and is communicated with one end of the spiral pipe section, one end of the second pipe section penetrates through the second through hole and is communicated with the other end of the spiral pipe section, and the other end of the second pipe section is communicated with the water inlet pipeline.

Optionally, a first fixing plate and a second fixing plate are horizontally arranged in the bag-type dust collector, a dust collecting bag is arranged at the bottom of the first fixing plate, the second fixing plate is positioned right below the dust collecting bag, and a plurality of ash leakage holes are further formed in the second fixing plate;

the electric furnace dust removing device further comprises a dust scraping component, wherein the dust scraping component is located between the first fixing plate and the second fixing plate, and the dust scraping component can move up and down between the first fixing plate and the second fixing plate to be sleeved outside the dust removing bag.

Optionally, the ash scraping assembly comprises an ash cleaning barrel and a driving motor;

a brush is arranged on the inner wall of the ash removal barrel, the bottom of the ash removal barrel is connected with an electric telescopic rod, a third through hole is formed in the middle of the second fixing plate, and a rod body of the electric telescopic rod is rotationally connected in the third through hole;

the side wall of the lower section of the bag-type dust collector is provided with a fourth through hole, an output shaft of the driving motor penetrates through the fourth through hole and stretches into the bag-type dust collector, a driving gear is sleeved on a shaft body of the output shaft of the driving motor, the shaft body of the driving motor is positioned in the bag-type dust collector, a driven gear is sleeved at the bottom end of the electric telescopic rod, and the driven gear is meshed with the driving gear.

Optionally, the bottom of ash removal section of thick bamboo is fixed through the inclined rod the top of electric telescopic handle, the one end of inclined rod is fixed the bottom of ash removal section of thick bamboo, the other end of inclined rod is fixed the top of electric telescopic handle.

Optionally, the first ash hole is last to be linked together has the second pipeline, the second pipeline is kept away from the one end intercommunication of first ash hole has the ash storage storehouse, the visual observation window has been seted up on the lateral wall in ash storage storehouse, be provided with the second ash hole on the ash storage storehouse.

Optionally, a controller is arranged on the outer wall of the bag-type dust collector, a material level sensor is arranged in the bag-type dust collector, an electric material level valve is arranged on the second pipeline, the output end of the material level sensor is electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the input end of the electric material level valve.

Optionally, a third pipeline is communicated with the air outlet, and an induced draft fan is communicated with one end, far away from the air outlet, of the third pipeline.

Optionally, a heat dissipation fin is disposed on the outer peripheral wall of the first pipe.

According to the electric furnace dust removing device provided by the utility model, high-temperature flue gas generated in the process of processing a workpiece by the electric furnace is discharged from the smoke outlet on the electric furnace and then sequentially enters the bag-type dust remover through the first pipeline and the smoke inlet on the bag-type dust remover, the bag-type dust remover removes dust from the high-temperature flue gas entering the bag-type dust remover, the gas after dust removal is discharged through the air outlet on the bag-type dust remover, dust after dust removal is discharged through the first dust outlet at the bottom of the bag-type dust remover, in the process of removing the high-temperature flue gas entering the bag-type dust remover by the bag-type dust remover, the cooling component on the bag-type dust remover carries out cooling treatment on the bag-type dust remover, specifically, water provided by the water inlet pipeline enters the cooler and is cooled by the cooler, the cooling water flows through the cooling pipeline, and the cooling pipeline is arranged in the sealing cavity between the inner shell and the outer shell of the bag-type dust remover, and the cooling water cools the sealing cavity while flowing through the cooling pipeline, so that the bag-type dust remover is prevented from being damaged due to overhigh temperature, the service life of the bag-type dust remover is prolonged, in addition, the cooling water in the cooling pipeline is recycled to the bag-type dust remover, and the cooling water can be recycled after the cooling water is recycled to the cooling water pipeline and the cooling water is recycled to the dust remover.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an electric furnace dust-removing device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the inside of a bag-type dust collector according to another embodiment of the present utility model;

fig. 3 is a schematic structural view of a sealed chamber and a cooling assembly between an inner casing and an outer casing of a bag-type dust collector according to another embodiment of the present utility model.

In the figure: 100. an electric furnace; 101. a smoke outlet; 200. a bag-type dust collector; 201. a smoke inlet; 202. an air outlet; 203. a first ash discharge port; 204. an outer housing; 2041. a first through hole; 2042. a second through hole; 205. an inner housing; 206. sealing the chamber; 207. a first fixing plate; 208. a second fixing plate; 209. a fourth through hole; 210. a controller; 211. a level sensor; 301. a water inlet pipe; 302. a cooler; 303. a cooling pipe; 3031. a first pipe section; 3032. a helical tube section; 3033. a second pipe section; 400. a first pipe; 401. a heat radiation fin; 500. an ash storage bin; 501. a visual observation window; 502. a second ash discharge port; 600. a dust removal bag; 701. a driving motor; 702. a drive gear; 703. an electric telescopic rod; 704. a driven gear; 705. a dust removing cylinder; 7051. a brush; 800. a second pipe; 900. a third conduit; 901. and (5) a draught fan.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.

Referring to fig. 1 to 3, the present utility model provides an electric furnace dust removing apparatus including an electric furnace 100, a bag-type dust remover 200, and a cooling assembly; because the electric furnace 100 contains a large amount of heat and dust in the high-temperature flue gas generated in the process of heating the workpiece, if the high-temperature flue gas is directly discharged, serious pollution is caused to the atmosphere, and therefore, the bag-type dust remover 200 is used for removing dust from the high-temperature flue gas to obtain gas and dust. The bag-type dust collector 200 in the dust removing process is cooled by the cooling assembly.

The electric furnace 100 is provided with a smoke outlet 101; the electric furnace 100 generates high-temperature flue gas in the process of processing a workpiece, and the high-temperature flue gas is discharged through a smoke outlet 101 on the electric furnace 100, and the workpiece can be a steel member, a metal alloy and the like.

The bag-type dust collector 200 is provided with a smoke inlet 201 and a smoke outlet 202, the smoke inlet 201 is communicated with the smoke outlet 101 through a first pipeline 400, and the bottom of the bag-type dust collector 200 is provided with a first ash discharge opening 203; the bag-type dust collector 200 comprises an outer shell 204 and an inner shell 205, a sealing chamber 206 is formed between the inner shell 205 and the outer shell 204, and a first through hole 2041 and a second through hole 2042 are respectively formed in the outer side walls of the upper section and the lower section of the outer shell 204; wherein, the high temperature flue gas generated in the process of processing the workpiece by the electric furnace 100 is discharged from the smoke outlet 101 on the electric furnace 100 and then sequentially enters the bag-type dust remover 200 through the first pipeline 400 and the smoke inlet 201 on the bag-type dust remover 200, the bag-type dust remover 200 removes dust on the high temperature flue gas entering the bag-type dust remover, the gas after the dust removal is discharged through the gas outlet 202 on the bag-type dust remover 200, and the dust after the dust removal is discharged through the first dust outlet 203 at the bottom of the bag-type dust remover 200.

The cooling assembly comprises a water inlet pipe 301, a cooler 302 and a cooling pipe 303; one end of the water inlet pipeline 301 is communicated with the water inlet of the cooler 302, the water outlet of the cooler 302 is communicated with one end of the cooling pipeline 303, and the other end of the cooling pipeline 303 sequentially penetrates through the first through hole 2041, the sealing cavity 206 and the second through hole 2042 and is communicated with the water inlet pipeline 301. In the process of removing dust from high-temperature flue gas entering the bag-type dust collector 200, the cooling component on the bag-type dust collector 200 performs cooling treatment on the bag-type dust collector 200, specifically, water supplied through the water inlet pipeline 301 enters the cooler 302 and is cooled by the cooler 302 to obtain cooling water, the cooling water flows through the cooling pipeline 303, the cooling pipeline 303 is arranged in the sealing chamber 206 between the inner shell 205 and the outer shell 204 of the bag-type dust collector 200, the cooling water cools the sealing chamber 206 while flowing through the cooling pipeline 303, the bag-type dust collector 200 is prevented from being damaged due to overhigh temperature, the service life of the bag-type dust collector 200 is prolonged, in addition, the cooling water in the cooling pipeline 303 returns to the water inlet pipeline 301 after cooling the bag-type dust collector 200, and the cooling water obtained after cooling the cooling water enters the cooler 302 can be recycled, so that the recycling rate of the water is improved, and the cooling cost of the bag-type dust collector 200 is saved.

In some embodiments, the cooling conduit 303 of the present utility model comprises a first tube segment 3031, a helical tube segment 3032, and a second tube segment 3033 in sequential communication; specifically, the helical tube segment 3032 is wound on the outer wall of the inner housing 205, one end of the first tube segment 3031 is communicated with the water outlet of the cooler 302, the other end of the first tube segment 3031 penetrates the first through hole 2041 to be communicated with one end of the helical tube segment 3032, one end of the second tube segment 3033 penetrates the second through hole 2042 to be communicated with the other end of the helical tube segment 3032, and the other end of the second tube segment 3033 is communicated with the water inlet pipeline 301. Wherein, the helical pipe section 3032 is located in the sealed cavity 206 and is wound on the inner housing 205, and the helical pipe section 3032 makes the cooling water entering the helical pipe section 3032 cool the inner housing 205 as much as possible, thereby rapidly reducing the temperature in the inner housing 205, avoiding the damage of the high-temperature flue gas to the bag-type dust collector 200, and ensuring the service life of the bag-type dust collector 200.

In some embodiments, a first fixing plate 207 and a second fixing plate 208 are horizontally arranged in the bag-type dust collector 200, a dust collecting bag 600 is arranged at the bottom of the first fixing plate 207, the second fixing plate 208 is positioned under the dust collecting bag 600, and a plurality of ash leakage holes are formed in the second fixing plate 208; wherein the first fixing plate 207 plays a role of fixing the dust bag 600.

The electric furnace dust removing device further comprises a dust scraping component, wherein the dust scraping component is located between the first fixing plate 207 and the second fixing plate 208, and the dust scraping component can move up and down between the first fixing plate 207 and the second fixing plate 208 so as to be sleeved outside the dust removing bag 600.

When the bag-type dust collector 200 operates for a period of time, dust particles adhere to the outer wall of the dust collection bag 600, and the dust collection bag 600 is blocked by the dust particles, so that the dust collection efficiency of the dust collection bag 600 is affected, the dust collection bag 600 needs to be cleaned by the dust scraping assembly, and therefore, when the dust scraping assembly moves to be sleeved outside the dust collection bag 600, dust adhering to the outer wall of the dust collection bag 600 is cleaned by the dust scraping assembly. The dust scraping assembly can be moved to the lower part of the dust removing bag 600 after the cleaning is completed, so that the dust removing effect of the dust removing bag 600 is prevented from being influenced.

In some embodiments, the ash scraping assembly includes an ash removal cartridge 705 and a drive motor 701; a brush 7051 is arranged on the inner wall of the ash removal barrel 705, an electric telescopic rod 703 is connected to the bottom of the ash removal barrel 705, a third through hole is formed in the middle of the second fixing plate 208, and the rod body of the electric telescopic rod 703 is rotatably connected in the third through hole; specifically, a fourth through hole 209 is formed in the side wall of the lower section of the bag-type dust collector 200, an output shaft of the driving motor 701 penetrates through the fourth through hole 209 and stretches into the bag-type dust collector 200, a driving gear 702 is sleeved on a shaft body of the output shaft of the driving motor 701, which is positioned in the bag-type dust collector 200, a driven gear 704 is sleeved at the bottom end of the electric telescopic rod 703, and the driven gear 704 is meshed with the driving gear 702.

Specifically, in the dust removing process, the top of the dust removing cylinder 705 is located at the bottom of the dust removing bag 600, at this time, the dust removing cylinder 705 is still located above the second fixing plate 208, after the bag-type dust remover 200 operates for a period of time, dust particles adhere to the outer wall of the dust removing bag 600, and the dust particles block the dust removing bag 600 to affect the dust removing efficiency of the dust removing bag 600, at this time, the dust removing cylinder 705 on the top is driven by the electric telescopic rod 703 to move upwards until the top of the dust removing cylinder 705 contacts with the lower surface of the first fixing plate 207, at this time, the bag-type dust remover 200 is embedded in the dust removing cylinder 705, the driving motor 701 is turned on, the output shaft of the driving motor 701 drives the driving gear 702 sleeved on the driving motor 702 to rotate, the driving gear 702 drives the driven gear 704 meshed with the driving gear to rotate, the driven gear 704 rotates the electric telescopic rod 703, the electric telescopic rod 703 rotates to drive the dust removing cylinder 705 on the top, and the dust removing brush 7051 on the inner wall of the dust removing cylinder 705 continuously cleans dust leakage holes of the dust removing bag 600 via the second fixing plate 208. After the dust removal is finished, the electric telescopic rod 703 is retracted to separate the dust removal barrel 705 from the dust removal bag 600, so that the dust removal bag 600 is ensured to be exposed outside the dust removal barrel 705, and the dust removal effect of the dust removal bag 600 is better exerted.

In some embodiments, the bottom of the ash removal barrel 705 in the present utility model is fixed to the top of the electric telescopic rod 703 by a diagonal rod 706, one end of the diagonal rod 706 is fixed to the bottom of the ash removal barrel 705, and the other end of the diagonal rod 706 is fixed to the top of the electric telescopic rod 703. The plurality of inclined rods 706 are provided, the purpose of the plurality of inclined rods 706 is to stably fix the ash cleaning barrel 705 on the top of the electric telescopic rod 703, and in addition, in the process of cleaning dust on the outer wall of the dust removing bag 600 by the brush 7051 on the inner wall of the ash cleaning barrel 705, the cleaned dust can be discharged from the first dust discharging port 203 to the bag-type dust remover 200 through the gaps between the plurality of inclined rods 706. The number of diagonal rods 706 may be limited according to practical situations, and the present utility model is not further limited herein.

In some embodiments, a second pipeline 800 is connected to the first ash discharge port 203, one end of the second pipeline 800 away from the first ash discharge port 203 is connected to an ash storage bin 500, a visual observation window 501 is formed on a side wall of the ash storage bin 500, and a second ash discharge port 502 is formed on the ash storage bin 500. Wherein, the dust that obtains after the sack cleaner 200 removes dust gets into the ash storage bin 500 through first row ash hole 203 and second pipeline 800, observes the quantity of the dust that stores in the ash storage bin 500 through the visual observation window 501 that sets up on the lateral wall of ash storage bin 500, and when the dust in the ash storage bin 500 is stored fully soon, the dust in the ash storage bin 500 is discharged to the second row ash hole 502 on the rethread ash storage bin 500, ensures the continuity of ash storage process.

In some embodiments, a controller 210 is disposed on the outer wall of the bag-type dust collector 200, a level sensor 211 is disposed in the bag-type dust collector 200, an electric level valve 801 is disposed on the second pipe 800, an output end of the level sensor 211 is electrically connected to an input end of the controller 210, and an output end of the controller 210 is electrically connected to an input end of the electric level valve 801. Wherein, the bag-type dust collector 200 has an upper limit value of the material level, when the material level value detected by the material level sensor 211 is greater than the upper limit value of the material level of the bag-type dust collector 200, the material level sensor 211 transmits the signal to the controller 210, and the controller 210 opens the electric material level valve 801 to discharge the dust in the bag-type dust collector 200 from the first dust discharge port 203 and the second pipeline 800 into the dust storage bin 500, thereby realizing the real-time detection of the material level in the bag-type dust collector 200.

In some embodiments, the air outlet 202 of the present utility model is connected to a third pipe 900, and an induced draft fan 901 is connected to an end of the third pipe 900 away from the air outlet 202. The induced draft fan 901 provides power for high-temperature smoke circulation, so that smoke generated by the electric furnace 100 can be rapidly discharged from the smoke outlet 101 and then enter the bag-type dust collector 200 through the first pipeline 400 and the smoke inlet 201, and the continuity of the dust collection process is ensured.

In some embodiments, the first pipe 400 of the present utility model is provided with a heat radiating fin 401 on the outer peripheral wall thereof. The heat dissipation fin 401 is for enhancing heat transfer, the first pipe 400 may be a steel pipe, a stainless steel pipe, a copper pipe, etc., and the heat dissipation fin 401 may be a steel strip, a stainless steel strip, a copper strip, an aluminum strip, etc. The high-temperature flue gas generated in the process of heating the workpiece by the electric furnace 100 is discharged from the smoke outlet 101, enters the first pipeline 400 from the smoke inlet 201 on the bag-type dust collector 200, and the radiating fins 401 on the first pipeline 400 can play a role in radiating the first pipeline 400, so that the temperature of the high-temperature flue gas entering the bag-type dust collector 200 through the first pipeline 400 is lower than the temperature of the high-temperature flue gas exiting from the smoke outlet 101 on the electric furnace 100, and the cooling burden of the cooling assembly on the bag-type dust collector 200 is reduced.

The specific working principle of the electric furnace dust removing device provided by the utility model is as follows:

flue gas generated in the process of heating a workpiece by the electric furnace 100 enters the bag-type dust remover 200 through the smoke outlet 101, the first pipeline 400 and the smoke inlet 201, dust in the flue gas is removed through a dust removing bag 600 in the bag-type dust remover 200, the obtained gas is discharged out of the bag-type dust remover 200 through the air outlet 202, the dust enters the ash storage bin 500 through the first ash outlet 203 and the second pipeline 800, in the dust removing process, water provided by the water inlet pipeline 301 enters the cooler 302 and is cooled by the cooler 302 to obtain cooling water, and the cooling water sequentially flows through a first pipe section 3031, a spiral pipe section 3032 and a second pipe section 3033 of the cooling pipeline 303 and then enters the water inlet pipeline 301 again to realize water recycling; the electric telescopic rod 703 is opened to drive the ash removal barrel 705 at the top of the electric telescopic rod 703 to move upwards until the top of the ash removal barrel 705 contacts with the lower surface of the first fixing plate 207, at this time, the bag-type dust remover 200 is embedded in the ash removal barrel 705, the driving motor 701 is opened, the output shaft of the driving motor 701 drives the driving gear 702 sleeved on the bag-type dust remover to rotate, the rotation of the driving gear 702 drives the driven gear 704 in meshed connection with the driving gear 702 to rotate, the rotation of the driven gear 704 drives the electric telescopic rod 703 to rotate, the rotation of the electric telescopic rod 703 drives the ash removal barrel 705 at the top of the bag-type dust remover to continuously clean dust attached to the outer wall of the dust removal bag 600 by the brush 7051 on the inner wall of the ash removal barrel 705 in the rotating process.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The electric furnace dust removing device is characterized by comprising an electric furnace (100), a bag-type dust remover (200) and a cooling assembly;

a smoke outlet (101) is arranged on the electric furnace (100);

a smoke inlet (201) and a smoke outlet (202) are formed in the bag-type dust collector (200), the smoke inlet (201) is communicated with the smoke outlet (101) through a first pipeline (400), and a first ash discharge port (203) is formed in the bottom of the bag-type dust collector (200); the bag-type dust collector (200) comprises an outer shell (204) and an inner shell (205), a sealing cavity (206) is formed between the inner shell (205) and the outer shell (204), and a first through hole (2041) and a second through hole (2042) are respectively formed in the outer side walls of the upper section and the lower section of the outer shell (204);

the cooling assembly comprises a water inlet pipeline (301), a cooler (302) and a cooling pipeline (303); one end of the water inlet pipeline (301) is communicated with the water inlet of the cooler (302), the water outlet of the cooler (302) is communicated with one end of the cooling pipeline (303), and the other end of the cooling pipeline (303) sequentially penetrates through the first through hole (2041), the sealing cavity (206) and the second through hole (2042) and is communicated with the water inlet pipeline (301).

2. The electric furnace dust removal device according to claim 1, wherein the cooling duct (303) comprises a first tube section (3031), a helical tube section (3032) and a second tube section (3033) which are sequentially communicated;

the spiral pipe section (3032) is wound on the outer wall of the inner shell (205), one end of the first pipe section (3031) is communicated with the water outlet of the cooler (302), the other end of the first pipe section (3031) penetrates through the first through hole (2041) and one end of the spiral pipe section (3032), one end of the second pipe section (3033) penetrates through the second through hole (2042) and the other end of the spiral pipe section (3032), and the other end of the second pipe section (3033) is communicated with the water inlet pipeline (301).

3. The electric furnace dust removal device according to claim 1, wherein a first fixing plate (207) and a second fixing plate (208) are horizontally arranged in the bag-type dust remover (200), a dust removal bag (600) is arranged at the bottom of the first fixing plate (207), the second fixing plate (208) is positioned under the dust removal bag (600), and a plurality of ash leakage holes are further formed in the second fixing plate (208);

the electric furnace dust removal device further comprises a dust scraping component, wherein the dust scraping component is located between the first fixing plate (207) and the second fixing plate (208), and the dust scraping component can move up and down between the first fixing plate (207) and the second fixing plate (208) to be sleeved outside the dust removal bag (600).

4. An electric furnace dust collector according to claim 3, wherein the dust scraping assembly comprises a dust cleaning barrel (705) and a drive motor (701);

a brush (7051) is arranged on the inner wall of the ash cleaning barrel (705), an electric telescopic rod (703) is connected to the bottom of the ash cleaning barrel (705), a third through hole is formed in the middle of the second fixing plate (208), and the rod body of the electric telescopic rod (703) is rotatably connected in the third through hole;

the utility model discloses a cloth bag dust remover, including sack cleaner (200), motor drive (704) including sack cleaner (200), motor drive (701), driving gear (702) are equipped with on the lateral wall of hypomere of sack cleaner (200), the output shaft of driving motor (701) runs through fourth through-hole (209) and stretches into in sack cleaner (200), the output shaft of driving motor (701) is located cover on the shaft body in sack cleaner (200) is equipped with driving gear (702), the bottom cover of motor-driven telescopic handle (703) is equipped with driven gear (704), driven gear (704) with driving gear (702) meshing.

5. The electric furnace dust removal device according to claim 4, wherein the bottom of the dust removal cylinder (705) is fixed at the top of the electric telescopic rod (703) through a diagonal rod (706), one end of the diagonal rod (706) is fixed at the bottom of the dust removal cylinder (705), and the other end of the diagonal rod (706) is fixed at the top of the electric telescopic rod (703).

6. The electric furnace dust removal device according to claim 1, wherein the first ash discharge port (203) is communicated with a second pipeline (800), one end, away from the first ash discharge port (203), of the second pipeline (800) is communicated with an ash storage bin (500), a visual observation window (501) is formed in the side wall of the ash storage bin (500), and the ash storage bin (500) is provided with a second ash discharge port (502).

7. The electric furnace dust removal device according to claim 6, wherein a controller (210) is arranged on the outer wall of the bag-type dust remover (200), a material level sensor (211) is arranged in the bag-type dust remover (200), an electric material level valve (801) is arranged on the second pipeline (800), the output end of the material level sensor (211) is electrically connected with the input end of the controller (210), and the output end of the controller (210) is electrically connected with the input end of the electric material level valve (801).

8. The electric furnace dust removal device according to claim 1, wherein a third pipeline (900) is communicated with the air outlet (202), and an induced draft fan (901) is communicated with one end, far away from the air outlet (202), of the third pipeline (900).

9. The electric furnace dust removal device according to any one of claims 1 to 8, wherein a heat radiating fin (401) is provided on an outer peripheral wall of the first duct (400).