A dust removal device for a metallurgical furnace

Abstract

The utility model belongs to dust removal device technical field, concretely is a kind of special furnace dust removal device for metallurgy, including metallurgical furnace;Metallurgical furnace top is fixedly connected with air inlet pipe;The end portion of air inlet pipe is fixedly connected with dust removal tank away from metallurgical furnace;The top of dust removal tank is fixedly connected with exhaust pipe close to air inlet pipe;Stirring assembly is equipped in the dust removal tank;The end portion of air inlet pipe is equipped with gas distribution assembly close to dust removal tank;Dust removal tank is equipped with scraping assembly and cleaning assembly;This step is through the setting of metallurgical furnace, air inlet pipe, dust removal tank, exhaust pipe, gas distribution assembly and stirring assembly, and special furnace dust removal structure for metallurgy is formed, the function that gas and liquid are fully contacted to carry out particulate matter settlement is realized, the problem that gas and liquid contact time is shorter or contact area is smaller is solved, improve the uniformity of gas and liquid contact, improve the effect of gas dust removal.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dust removal device technical field, specifically a special furnace dust removal device of metallurgy. BACKGROUND

[0002] The special furnace of metallurgy is an industrial furnace used for heat treatment of various raw materials or workpieces in the metallurgical process.

[0003] The special furnace of metallurgy can be divided into fuel furnace, electric furnace and self-heating furnace according to different heat sources, the fuel furnace is with the combustion heat of fuel as heat source, the electric furnace is with electricity as heat source, the self-heating furnace is with the heat generated by furnace charge to maintain normal operation of the furnace, the special furnace of metallurgy produces smoke and dust when in use, and needs to use dust removal device to remove dust in gas.

[0004] In the existing dust removal technology of the special furnace of metallurgy, gas is passed into liquid to make particulate matter in the gas settle, the area of gas passing into liquid is limited, leading to uneven contact of gas and liquid, thereby affecting the dust removal effect.

[0005] Therefore, the utility model provides a special furnace dust removal device of metallurgy. UTILITY MODEL CONTENTS

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem in the background art is solved.

[0007] The utility model solves the technical scheme that the utility model discloses a special furnace dust removal device of metallurgy, including metallurgical furnace, the top fixed connection of metallurgical furnace has the gas inlet pipe, the end fixed connection of gas inlet pipe far from metallurgical furnace has dust removal tank, the top fixed connection of dust removal tank near gas inlet pipe has the exhaust pipe, the inside of dust removal tank is equipped with the stirring subassembly, the end of gas inlet pipe near dust removal tank is equipped with the gas distribution subassembly, the inside of dust removal tank is equipped with the ash scraping subassembly and the cleaning subassembly, this step passes through the setting of metallurgical furnace, gas inlet pipe, dust removal tank, exhaust pipe, gas distribution subassembly and stirring subassembly, constitutes the dust removal structure of special furnace of metallurgy, realizes the function that gas and liquid contact fully and particulate matter settles, solves the problem that gas and liquid contact time is short or contact area is small, improves the uniformity of gas and liquid contact, improves the effect of dust removal to gas.

[0008] Preferably, the gas distribution assembly comprises a gas distributor, a snorkel, a drain tank and a water inlet pipe; the drain tank and the water inlet pipe are fixedly connected to the outer side wall of the dust removal tank respectively; the gas distributor is rotatably connected to the end of the air inlet pipe close to the dust removal tank; the gas distributor is rotatably connected to the top of the inner side wall of the dust removal tank; the gas distributor is internally provided with an air passage; the snorkel is fixedly connected to the outer side wall of the gas distributor; the snorkel is provided with multiple groups on the outer side wall of the gas distributor and is uniformly distributed on the outer side wall of the gas distributor; the snorkel is communicated with the air inlet pipe through the air passage in the gas distributor; the bottom of the gas distributor is connected with the stirring assembly; this step, by the arrangement of the gas distributor, the snorkel, the drain tank and the water inlet pipe, forms a rotating gas exhaust structure, realizes the function of uniformly passing gas into the liquid in the dust removal tank, solves the problem of insufficient contact between gas and liquid, reduces the temperature of the gas passing into the liquid, improves the gas particle settling effect, and improves the sufficiency of the contact between gas and liquid.

[0009] Preferably, the stirring assembly comprises a servo motor, a rotating disc, a stirring plate and a rotating shaft; the servo motor is fixedly connected to the bottom of the dust removal tank; the rotating disc is fixedly connected to the transmission end of the servo motor; the rotating disc is rotatably connected to the bottom of the inner side wall of the dust removal tank; the stirring plate is fixedly connected to the top of the rotating disc; the stirring plate is provided with multiple groups on the top of the rotating disc and is uniformly distributed on the top of the rotating disc; the bottom end of the rotating shaft is fixedly connected to the top of the rotating disc; the top end of the rotating shaft is fixedly connected to the bottom of the gas distributor; this step, by the arrangement of the servo motor, the rotating disc, the stirring plate and the rotating shaft, forms a liquid stirring structure, realizes the function of stirring the liquid in the dust removal tank, solves the problem of uneven contact between gas and liquid, improves the contact area between gas and liquid, and reduces the problem of insufficient contact between gas and liquid leading to a decrease in the particle settling effect.

[0010] Preferably, the dust scraping assembly comprises a first rotating frame, a scraper and a spring; one end of the first rotating frame is fixedly connected to the outer side wall of the rotating disc; the other end of the first rotating frame is fixedly connected to the outer side wall of the gas distributor; the scraper is slidably connected to the side wall of the first rotating frame away from the rotating disc; one end of the spring is fixedly connected to the side wall of the scraper close to the first rotating frame; the spring is provided with multiple groups on the side wall of the scraper and is uniformly distributed on the side wall of the scraper; the other end of the spring is fixedly connected to the inside of the scraper; this step, by the arrangement of the first rotating frame, the scraper and the spring, forms a dust scraping structure for the inner side wall of the dust removal tank, realizes the function of scraping the inner side wall of the dust removal tank, solves the problem of dirt on the inner side wall of the dust removal tank, improves the cleanliness of the inner side wall of the dust removal tank, and reduces the situation of dirt on the inner side wall of the dust removal tank caused by the adhesion of particles to the inner side wall of the dust removal tank.

[0011] Preferably, the cleaning assembly comprises a second rotating frame and a brush; one end of the second rotating frame is fixedly connected to the outer side wall of the rotating disc; the other end of the second rotating frame is fixedly connected to the outer side wall of the gas distributor; the brush is fixedly connected to the outer side wall of the second rotating frame away from the rotating disc; the brush is provided in multiple groups on the outer side wall of the second rotating frame and is uniformly distributed on the side wall of the second rotating frame; this step forms a cleaning structure for the inner side wall of the dust removal tank by the arrangement of the second rotating frame and the brush, so that the particles adhering to the inner side wall of the dust removal tank are swept off, the cleanliness of the inner side wall of the dust removal tank is improved, and the situation that the particles adhere to the inner side wall of the dust removal tank and cause the inner side wall of the dust removal tank to be dirty is reduced.

[0012] Preferably, the outer side wall of the air inlet pipe is fixedly connected with heat dissipation fins; the heat dissipation fins are provided in multiple groups on the outer side wall of the air inlet pipe and are uniformly distributed on the outer side wall of the air inlet pipe; this step increases the contact area of the air inlet pipe with air, accelerates the heat dissipation speed of the air inlet pipe, and reduces the temperature of the gas in the air inlet pipe.

[0013] Preferably, the bottom of the dust removal tank is fixedly connected with supporting legs; the supporting legs are provided in multiple groups on the bottom of the dust removal tank; the bottom of the supporting leg is fixedly connected with a foot plate; the supporting legs support the dust removal tank, the foot plate increases the stability of the dust removal tank when it is placed, reduces the situation that the dust removal tank is tilted, and improves the stability of the device during operation.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model discloses a special furnace dust removal device for metallurgy, which is composed of a metallurgical furnace, an air inlet pipe, a dust removal tank, an exhaust pipe, a gas distribution assembly and an agitation assembly, realizes the function of gas and liquid fully contacting and particle deposition, solves the problem of short contact time or small contact area of gas and liquid, improves the uniformity of gas and liquid contact, and improves the dust removal effect of gas.

[0016] 2. The utility model discloses a special furnace dust removal device for metallurgy, which is composed of a gas distributor, a submersible pipe, a drainage tank and a water inlet pipe, realizes the function of uniformly introducing gas into liquid in the dust removal tank, solves the problem of insufficient contact of gas and liquid, reduces the temperature of gas when it is introduced into liquid, improves the particle deposition effect of gas, and improves the sufficiency of gas and liquid contact. DRAWINGS

[0017] The utility model will be further described below with reference to the drawings.

[0018] Figure 1 It is the perspective view of the utility model;

[0019] Figure 2 It is the structural schematic view of the cooperation of the submersible pipe and the air inlet pipe in the utility model;

[0020] Figure 3 Figure 1 is a structure diagram of the rotating disc and the rotating frame cooperating in the utility model;

[0021] Figure 4 Figure 2 is a structure diagram of the stirring plate and the rotating disc cooperating in the utility model.

[0022] In the figure: 1, metallurgical furnace; 11, air inlet pipe; 12, dust removal tank; 13, exhaust pipe; 2, gas distributor; 21, submersible pipe; 22, water discharge tank; 23, water inlet pipe; 3, servo motor; 31, rotating disc; 32, stirring plate; 33, rotating shaft; 4, first rotating frame; 41, scraper; 42, spring; 5, second rotating frame; 51, brush; 6, heat sink; 7, supporting leg; 71, foot disc. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As shown in Figures 1 to 4 the utility model embodiment of a special metallurgical furnace dust removal device, including metallurgical furnace 1;Metallurgical furnace 1 top fixedly connected with air inlet pipe 11;Air inlet pipe 11 is fixedly connected with dust removal tank 12 away from the end of metallurgical furnace 1;Dust removal tank 12 is fixedly connected with exhaust pipe 13 near the top of air inlet pipe 11;Dust removal tank 12 inside is equipped with stirring assembly;Air inlet pipe 11 is equipped with gas distribution assembly near the end of dust removal tank 12;Dust removal tank 12 inside is equipped with ash scraping assembly and cleaning assembly;In work, the high-temperature gas generated in metallurgical furnace 1 enters the inside of dust removal tank 12 through air inlet pipe 11, water or other liquid is injected into dust removal tank 12, the gas is introduced into the liquid in dust removal tank 12 through gas distribution assembly, the stirring assembly stirs the liquid in dust removal tank 12 and drives the rotation of gas distribution assembly, the gas rotates and discharges in dust removal tank 12, fully contacts with the liquid in dust removal tank 12, so that the particulate matter in the gas settles, and the gas after dust removal is discharged through exhaust pipe 13;This step is composed of metallurgical special furnace dust removal structure through the setting of metallurgical furnace 1, air inlet pipe 11, dust removal tank 12, exhaust pipe 13, gas distribution assembly and stirring assembly, realizes the function of gas and liquid full contact and particulate matter settlement, solves the problem of short contact time or small contact area of gas and liquid, improves the uniformity of gas and liquid contact, and improves the effect of gas dust removal.

[0025] As shown in Figure 2 and Figure 3As shown, the air distribution assembly includes air distributor 2, submersible pipe 21, drain tank 22 and water inlet pipe 23; drain tank 22 and water inlet pipe 23 are fixedly connected to the outer side wall of dust removal tank 12 respectively; air distributor 2 is rotatably connected to the end of air inlet pipe 11 close to dust removal tank 12; air distributor 2 is rotatably connected to the top of the inner side wall of dust removal tank 12; air distributor 2 is internally provided with an air passage; submersible pipe 21 is fixedly connected to the outer side wall of air distributor 2; submersible pipe 21 is provided with multiple groups on the outer side wall of air distributor 2 and is uniformly distributed on the outer side wall of air distributor 2; submersible pipe 21 is communicated with air inlet pipe 11 through the air passage inside air distributor 2; the bottom of air distributor 2 is connected with the stirring assembly; in operation, submersible pipe 21 is inserted into the liquid in dust removal tank 12, rotating assembly drives air distributor 2 and submersible pipe 21 to rotate, gas is discharged through submersible pipe 21 and fully contacts with the liquid, drain tank 22 and water inlet pipe 23 are externally connected with the circulating cooling device, the liquid in dust removal tank 12 cools down submersible pipe 21 and gas before discharging, and the particulate matters in gas are settled; this step, through the arrangement of air distributor 2, submersible pipe 21, drain tank 22 and water inlet pipe 23, forms a rotating gas discharge structure, realizes the function of uniformly discharging gas into the liquid in dust removal tank 12, solves the situation that the insufficient contact between gas and liquid leads to the decline of the settlement effect of particulate matters, reduces the temperature of gas when entering the liquid, improves the settlement effect of gas particulate matters, and improves the sufficiency of the contact between gas and liquid.

[0026] As shown, Figures 2 to 4 The stirring assembly includes servo motor 3, rotating disc 31, stirring plate 32 and rotating shaft 33; servo motor 3 is fixedly connected to the bottom of dust removal tank 12; rotating disc 31 is fixedly connected to the driving end of servo motor 3; rotating disc 31 is rotatably connected to the bottom of the inner side wall of dust removal tank 12; stirring plate 32 is fixedly connected to the top of rotating disc 31; stirring plate 32 is provided with multiple groups on the top of rotating disc 31 and is uniformly distributed on the top of rotating disc 31; bottom end of rotating shaft 33 is fixedly connected to the top of rotating disc 31; top end of rotating shaft 33 is fixedly connected to the bottom of air distributor 2; in operation, servo motor 3 is started, rotating disc 31, stirring plate 32 and rotating shaft 33 are driven by servo motor 3 to rotate, air distributor 2 and submersible pipe 21 are driven by rotating shaft 33 to rotate, and liquid in dust removal tank 12 is agitated by stirring plate 32, improving the uniformity of the contact between gas and liquid; this step, through the arrangement of servo motor 3, rotating disc 31, stirring plate 32 and rotating shaft 33, forms a liquid agitation structure, realizes the function of agitating the liquid in dust removal tank 12, solves the situation that the contact between gas and liquid is not uniform, improves the contact area between gas and liquid, and reduces the situation that the insufficient contact between gas and liquid leads to the decline of the settlement effect of particulate matters.

[0027] As shown, Figure 3 and Figure 4As shown, the scraping assembly includes a first rotating frame 4, a scraper 41 and a spring 42; one end of the first rotating frame 4 is fixedly connected to the outer side wall of the rotating disc 31; the other end of the first rotating frame 4 is fixedly connected to the outer side wall of the gas distributor 2; the scraper 41 is slidingly connected to the side wall of the first rotating frame 4 away from the rotating disc 31; one end of the spring 42 is fixedly connected to the side wall of the scraper 41 close to the first rotating frame 4; the spring 42 is provided on the side wall of the scraper 41 in multiple groups and is evenly distributed on the side wall of the scraper 41; the other end of the spring 42 is fixedly connected to the inside of the scraper 41; in working, the rotating disc 31 drives the first rotating frame 4 and the scraper 41 to rotate, the spring 42 abuts against the scraper 41 to contact the inner side wall of the dust removal tank 12, and the spring 42 scrapes off the sludge or foreign matter adhered to the inner side wall of the dust removal tank 12 when rotating; this step, by the setting of the first rotating frame 4, the scraper 41 and the spring 42, forms a scraping structure of the inner side wall of the dust removal tank 12, realizes the function of scraping the inner side wall of the dust removal tank 12, solves the dirty condition of the inner side wall of the dust removal tank 12, improves the cleanliness of the inner side wall of the dust removal tank 12, and reduces the condition that the particulate matter adheres to the inner side wall of the dust removal tank 12 to cause the dirty condition of the inner side wall of the dust removal tank 12.

[0028] As shown in Figure 3 and Figure 4 , the cleaning assembly includes a second rotating frame 5 and a brush 51; one end of the second rotating frame 5 is fixedly connected to the outer side wall of the rotating disc 31; the other end of the second rotating frame 5 is fixedly connected to the outer side wall of the gas distributor 2; the brush 51 is fixedly connected to the outer side wall of the second rotating frame 5 away from the rotating disc 31; the brush 51 is provided on the outer side wall of the second rotating frame 5 in multiple groups and is evenly distributed on the side wall of the second rotating frame 5; in working, the rotating disc 31 drives the second rotating frame 5 and the brush 51 to rotate, the brush 51 contacts the inner side wall of the dust removal tank 12 to clean the inner side wall of the dust removal tank 12, and the particulate matter adhered to the inner side wall of the dust removal tank 12 is swept off; this step, by the setting of the second rotating frame 5 and the brush 51, forms a cleaning structure of the inner side wall of the dust removal tank 12, sweeps off the particulate matter adhered to the inner side wall of the dust removal tank 12, improves the cleanliness of the inner side wall of the dust removal tank 12, and reduces the condition that the particulate matter adheres to the inner side wall of the dust removal tank 12 to cause the dirty condition of the inner side wall of the dust removal tank 12.

[0029] As shown in Figure 2 , the outer side wall of the gas inlet pipe 11 is fixedly connected with a plurality of heat dissipation fins 6; the heat dissipation fins 6 are provided on the outer side wall of the gas inlet pipe 11 in multiple groups and are evenly distributed on the outer side wall of the gas inlet pipe 11; in working, the heat dissipation fins 6 are fixed on the outer side wall of the gas inlet pipe 11 to increase the contact area of the gas inlet pipe 11 with air; this step, by the setting of the heat dissipation fins 6, increases the contact area of the gas inlet pipe 11 with air, speeds up the heat dissipation speed of the gas inlet pipe 11, and reduces the temperature of the gas in the gas inlet pipe 11.

[0030] As shown in Figure 2As shown, the bottom of the dust removal tank 12 is fixedly connected with the supporting legs 7; the supporting legs 7 are arranged in multiple groups at the bottom of the dust removal tank 12; the bottom of the supporting legs 7 is fixedly connected with the foot plates 71; in working, the supporting legs 7 support the dust removal tank 12, the foot plates 71 increase the stability of the dust removal tank 12 when placed, reduce the situation that the dust removal tank 12 is overturned, and improve the stability of the device when working.

[0031] In working, the high-temperature gas generated in the metallurgical furnace 1 enters the inside of the dust removal tank 12 through the gas inlet pipe 11, water or other liquid is injected into the dust removal tank 12, the gas is introduced into the liquid in the dust removal tank 12 through the gas distribution assembly, the stirring assembly stirs the liquid in the dust removal tank 12 and drives the gas distribution assembly to rotate, the gas is discharged while rotating in the dust removal tank 12, fully contacts with the liquid in the dust removal tank 12, and the particulate matters in the gas are settled, the gas after dust removal is discharged through the gas outlet pipe 13; the diving pipe 21 is introduced into the liquid in the dust removal tank 12, the rotating assembly drives the gas distributor 2 and the diving pipe 21 to rotate, the gas is discharged through the diving pipe 21 and fully contacts with the liquid, the water discharge tank 22 and the water inlet pipe 23 are connected with the circulating cooling device, the liquid in the dust removal tank 12 cools the diving pipe 21 and the gas and then discharges, and the particulate matters in the gas are settled; the servo motor 3 is started, the servo motor 3 drives the rotating disc 31, the stirring plate 32 and the rotating shaft 33 to rotate, the rotating shaft 33 drives the gas distributor 2 and the diving pipe 21 to rotate, and the stirring plate 32 stirs the liquid in the dust removal tank 12, thereby improving the uniformity of the contact between the gas and the liquid; the rotating disc 31 drives the first rotating frame 4 and the scraper 41 to rotate when rotating, the spring 42 abuts against the scraper 41 and contacts with the inner side wall of the dust removal tank 12, and the spring 42 is rotated to scrape off the sludge or foreign matters adhered to the inner side wall of the dust removal tank 12; the rotating disc 31 drives the second rotating frame 5 and the brush 51 to rotate when rotating, the brush 51 contacts with the inner side wall of the dust removal tank 12 to clean the inner side wall of the dust removal tank 12, and the particulate matters adhered to the inner side wall of the dust removal tank 12 are swept off; the radiating fins 6 are fixed to the outer side wall of the gas inlet pipe 11 to increase the contact area between the gas inlet pipe 11 and air; the supporting legs 7 support the dust removal tank 12, the foot plates 71 increase the stability of the dust removal tank 12 when placed, reduce the situation that the dust removal tank 12 is overturned, and improve the stability of the device when working.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a metallurgical furnace, comprising a metallurgical furnace (1); characterized in that: The metallurgical furnace (1) is fixedly connected to the top of an air inlet pipe (11); a dust collector (12) is fixedly connected to the end of the air inlet pipe (11) away from the metallurgical furnace (1); an exhaust pipe (13) is fixedly connected to the top of the dust collector (12) near the air inlet pipe (11); an agitation component is provided inside the dust collector (12); a gas distribution component is provided at the end of the air inlet pipe (11) near the dust collector (12); and a ash scraping component and a cleaning component are provided inside the dust collector (12).

2. The dust removal device for a metallurgical furnace according to claim 1, characterized in that: The gas distribution assembly includes a gas distributor (2), a submersible pipe (21), a drain tank (22), and a water inlet pipe (23); the drain tank (22) and the water inlet pipe (23) are respectively fixedly connected to the outer wall of the dust collector (12); the gas distributor (2) is rotatably connected to the end of the air inlet pipe (11) near the dust collector (12); the gas distributor (2) is rotatably connected to the top of the inner wall of the dust collector (12); the gas distributor (2) has an air passage inside; the submersible pipe (21) is fixedly connected to the outer wall of the gas distributor (2); multiple sets of the submersible pipe (21) are arranged on the outer wall of the gas distributor (2) and are evenly distributed on the outer wall of the gas distributor (2); the submersible pipe (21) communicates with the air inlet pipe (11) through the air passage inside the gas distributor (2); the bottom of the gas distributor (2) is connected to the stirring assembly.

3. The dust removal device for a metallurgical furnace according to claim 2, characterized in that: The agitation assembly includes a servo motor (3), a turntable (31), an agitator plate (32), and a rotating shaft (33); the servo motor (3) is fixedly connected to the bottom of the dust collector (12); the turntable (31) is fixedly connected to the transmission end of the servo motor (3); the turntable (31) is rotatably connected to the bottom of the inner wall of the dust collector (12); the agitator plate (32) is fixedly connected to the top of the turntable (31); multiple sets of agitator plates (32) are provided on the top of the turntable (31) and are evenly distributed on the top of the turntable (31); the bottom end of the rotating shaft (33) is fixedly connected to the top of the turntable (31); the top end of the rotating shaft (33) is fixedly connected to the bottom of the air distributor (2).

4. The dust removal device for a metallurgical furnace according to claim 3, characterized in that: The ash scraping assembly includes a first rotating frame (4), a scraper (41), and a spring (42); one end of the first rotating frame (4) is fixedly connected to the outer wall of the turntable (31); the other end of the first rotating frame (4) is fixedly connected to the outer wall of the air distributor (2); the scraper (41) is slidably connected to the side wall of the first rotating frame (4) away from the turntable (31); one end of the spring (42) is fixedly connected to the side wall of the scraper (41) close to the first rotating frame (4); multiple sets of springs (42) are provided on the side wall of the scraper (41) and are evenly distributed on the side wall of the scraper (41); the other end of the spring (42) is fixedly connected to the inside of the scraper (41).

5. The dust removal device for a metallurgical furnace according to claim 3, characterized in that: The cleaning assembly includes a second rotating frame (5) and a brush (51); one end of the second rotating frame (5) is fixedly connected to the outer wall of the turntable (31); the other end of the second rotating frame (5) is fixedly connected to the outer wall of the air distributor (2); the brush (51) is fixedly connected to the outer wall of the second rotating frame (5) away from the turntable (31); multiple sets of the brush (51) are arranged on the outer wall of the second rotating frame (5) and are evenly distributed on the side wall of the second rotating frame (5).

6. The dust removal device for a metallurgical furnace according to claim 1, characterized in that: The outer wall of the air intake pipe (11) is fixedly connected with a heat sink (6); multiple sets of heat sinks (6) are provided on the outer wall of the air intake pipe (11) and are evenly distributed on the outer wall of the air intake pipe (11).

7. The dust removal device for a metallurgical furnace according to claim 1, characterized in that: The bottom of the dust collector (12) is fixedly connected to a support leg (7); multiple sets of support legs (7) are provided at the bottom of the dust collector (12); and a foot plate (71) is fixedly connected to the bottom of the support leg (7).

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