A flue gas purification device for a secondary aluminum smelting furnace

By designing a flue gas purification device for recycled aluminum smelting furnaces, and utilizing components such as spray boxes and electrostatic generator sleeves, efficient purification of flue gas from recycled aluminum smelting furnaces has been achieved. This solves the problem of unadjustable atomization effect in existing technologies and improves flue gas treatment efficiency and catalyst utilization.

CN119633592BActive Publication Date: 2025-12-09HUBEI POLYTECHNIC UNIV +2
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Patent Information

Application Number
CN202411919131.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-12-09
Estimated Expiration
2044-12-25

AI Technical Summary

Technical Problem

Existing methods for purifying flue gas during recycled aluminum smelting cannot effectively regulate atomization, leading to environmental pollution problems.

Method used

A flue gas purification device for a recycled aluminum smelting furnace was designed. Through components such as a spray box, an electrostatic generator sleeve, and an intermittently interrupted sliding column, the liquid catalyst is atomized and electrostatically adsorbed. Combined with a circulation system driven by an actuator motor, the atomization effect of the catalyst is adjusted to improve the flue gas treatment efficiency.

Benefits of technology

It achieves efficient treatment of harmful gases in the flue gas of recycled aluminum smelting furnace, saves catalyst usage, and improves the ability to adjust flue gas purification and atomization effects.

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Abstract

The present application belongs to the technical field of recycled aluminum smelting, and particularly relates to a recycled aluminum smelting furnace flue gas purification device to solve the technical problem of being unable to adjust the atomization effect, comprising a spraying box body transmission belt, a spraying end cover is fixedly installed on the spraying box body, a connecting mounting bracket is fixedly installed on the spraying end cover through locking screws, an adjusting threaded rotating rod is rotatably installed on the connecting mounting bracket, the threaded rotating rod is manually rotated, the threaded connection between the threaded rotating rod and the sliding adjusting rod drives the impact conical rotary body to slide relative to the liquid outlet pipe opening, and the size of the gap opening between the impact conical rotary body and the liquid outlet pipe through which the liquid catalyst is sprayed changes, the atomization effect of the liquid catalyst is adjusted, the contact effect of the liquid catalyst and harmful gases in the recycled aluminum smelting furnace flue gas is improved through the adjustment of the atomization effect of the liquid catalyst.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of regenerative aluminum smelting, and particularly relates to a regenerative aluminum smelting furnace flue gas purification device. BACKGROUND

[0002] A large amount of harmful flue gas is easily generated in the smelting process of regenerative aluminum smelting, and if directly discharged, environmental pollution is easily caused. A commonly used treatment method is simple spraying, and the treatment effect is poor, and the atomization effect cannot be adjusted at the same time. SUMMARY

[0003] The application aims to provide a regenerative aluminum smelting furnace flue gas purification device to solve the technical problem that the atomization effect cannot be adjusted.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the regenerative aluminum smelting furnace flue gas purification device is as follows:

[0005] The application discloses a flue gas purification device for a secondary aluminum smelting furnace, which comprises a spraying box body, a spraying end cover, a connecting mounting frame, locking screws, an adjusting screw rod, a sliding adjusting rod, a connecting pipe one, an electrostatic generating sleeve, a smoke exhaust end cover, a connecting pipe two, a connecting pipe three, a liquid storage box body, an intermittent interruption sliding column, a sliding column connecting rod, a hinged connecting rod, a driving connecting rod, a circulation A component, a connecting pipe four, a connecting pipe five, a circulation B component, a connecting pipe six, an executing motor, a driving disc, a rectangular sliding groove, an adjusting rod, a rectangular sliding block, a smoke inlet pipe, a rectangular limiting protrusion, a rectangular limiting opening, a middle end connecting box body, an adsorption pipe, a liquid outlet pipe, a liquid outlet pipe opening, an impact conical rotary body, a transmission pulley one and a transmission belt.

[0006] Further, the middle end connecting box body is fixedly provided with a plurality of liquid outlet pipes, the impact conical rotary body is slidably arranged on the liquid outlet pipe, and a gap for spraying liquid catalyst is arranged between the impact conical rotary body and the liquid outlet pipe.

[0007] Further, the plurality of liquid outlet pipe openings are arranged in an array along the circumference of the liquid outlet pipe.

[0008] Further, the plurality of liquid outlet pipes are arranged in an array along the circumference of the middle end connecting box body.

[0009] Further, the intermittent interruption slide post is provided with a sharp end at one end.

[0010] Further, the intermittent interruption slide post is provided with a sharp end at one end.

[0011] Further, the cycle A assembly comprises a cycle connecting sleeve A, a cycle impeller A and an impeller rotating shaft A, the cycle connecting sleeve A is installed between the connecting pipe three and the connecting pipe four, the impeller rotating shaft A is rotatably installed on the cycle connecting sleeve A, the cycle impeller A is fixedly installed on the impeller rotating shaft A, the impeller rotating shaft A is connected to the other output shaft of the execution motor, the transmission pulley one is installed on the other output shaft of the execution motor, and the transmission pulley one is connected to the transmission belt.

[0012] Further, the cycle B assembly comprises a cycle connecting sleeve B, a cycle impeller B, an impeller rotating shaft B and an impeller rotating shaft pulley, the cycle connecting sleeve B is installed between the connecting pipe five and the connecting pipe six, the impeller rotating shaft B is rotatably installed on the cycle connecting sleeve B, the cycle impeller B is fixedly installed at one end of the impeller rotating shaft B, the impeller rotating shaft pulley is fixedly installed at the other end of the impeller rotating shaft B, and the transmission belt is connected to the impeller rotating shaft pulley.

[0013] The present application has the advantages of:

[0014] 1. The regenerated aluminum smelting furnace flue gas enters the spray box through the smoke inlet pipe, and the execution motor is started at the same time. The execution motor drives the cycle A assembly to make the liquid catalyst in the liquid storage box flow through the connecting pipe three and the connecting pipe two, enter the middle end connecting box, and be sprayed onto the impact conical rotary body through the liquid outlet pipe opening. Through the impact force, the gap for facilitating the spraying of the liquid catalyst is arranged between the impact conical rotary body and the liquid outlet pipe, the liquid catalyst is atomized, the liquid catalyst is fully contacted with the regenerated aluminum smelting furnace flue gas in the spray box, the treatment of the harmful gas in the regenerated aluminum smelting furnace flue gas is realized, the treated harmful gas in the regenerated aluminum smelting furnace flue gas is discharged through the connecting pipe one and the electrostatic generating sleeve, and the electrostatic adsorption pipe is used to adsorb the fixed particles. At the same time, the execution motor drives the driving disc to rotate, and then drives the driving connecting rod through the rectangular sliding groove and the rectangular sliding block, so that the driving connecting rod drives the hinged connecting rod and the slide post connecting rod, and drives the two intermittent interruption slide posts to reciprocate relatively. Through the relative reciprocating movement of the two intermittent interruption slide posts, the flow of the catalyst fluid through the connecting pipe two is interrupted, the intermittent spraying of the liquid catalyst is realized, the atomized catalyst can be fully contacted with the harmful gas in the flue gas, and the liquid catalyst can be saved.

[0015] 2. Manually rotating the adjusting screw rod drives the impact cone-shaped rotary body to slide relative to the liquid outlet pipe opening through the threaded connection between the adjusting screw rod and the sliding adjusting rod, and then changes the size of the gap opening between the impact cone-shaped rotary body and the liquid outlet pipe for facilitating the spraying of liquid catalyst, so as to adjust the atomization effect of the liquid catalyst, and improve the contact effect of the liquid catalyst and harmful gas in the flue gas of the recycled aluminum smelting furnace through the adjustment of the atomization effect of the liquid catalyst;

[0016] 3. The rotation of the motor drives the impeller shaft A and the circulating impeller A to rotate, and then the liquid catalyst in the liquid storage tank body flows through the connecting pipe four to the connecting pipe three, and the transmission belt wheel one drives the transmission belt to move

[0017] 4. The transmission belt drives the impeller shaft belt wheel to move, and then the circulating impeller B is driven to rotate through the impeller shaft belt wheel and the impeller shaft B, so that the liquid catalyst in the spray tank body that has contacted the flue gas of the recycled aluminum smelting furnace flows back to the liquid storage tank body through the connecting pipe five and the connecting pipe six, realizing the recycling of the liquid catalyst. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure of the present application Figure 1 ;

[0019] Figure 2 is the overall structure of the present application Figure 2 ;

[0020] Figure 3 is a schematic view of the position of the section line of Figure 1 ;

[0021] Figure 4 is a sectional view along the A-A section of Figure 3 ;

[0022] Figure 5 is a partial enlarged view A of Figure 4 ;

[0023] Figure 6 is a sectional view along the B-B section of Figure 3 ;

[0024] Figure 7 is a partial enlarged view B of Figure 6 ;

[0025] Figure 8 is a partial enlarged view C of Figure 6 ;

[0026] Figure 9 is a sectional view along the C-C section of Figure 3 ;

[0027] Figure 10 Structure diagram of connecting pipe two of the present application;

[0028] Figure 11 Structure diagram of intermittent interruption slide column of the present application;

[0029] Marked description in the figure: spray box 1; spray end cover 2; connecting mounting frame 3; locking screw 4; adjusting screw rod 6; sliding adjusting rod 7; connecting pipe one 8; electrostatic generation sleeve 9; smoke exhaust end cover 10; connecting pipe two 11; connecting pipe three 12; liquid storage box 13; intermittent interruption slide column 14; slide column connecting rod 15; hinged connecting rod 16; driving connecting rod 17; circulation A assembly 18; circulation connecting sleeve A 18-1; circulation impeller A 18-2; impeller rotating shaft A 18-3; connecting pipe four 19; connecting pipe five 20; circulation B assembly 21; circulation connecting sleeve B 21-1; circulation impeller B 21-2; impeller rotating shaft B 21-3; impeller rotating shaft pulley 21-4; connecting pipe six 22; execution motor 23; driving disc 24; rectangular sliding groove 25; adjusting rod 26; rectangular sliding block 27; smoke inlet pipe 28; rectangular limiting protrusion 29; rectangular limiting opening 30; middle end connecting box 31; adsorption pipe 32; liquid outlet pipe 33; liquid outlet pipe opening 34; impact conical rotary body 35; transmission pulley one 36; transmission belt 37. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] Example 1

[0033] As Figures 1-11As shown, a regenerative aluminum smelting furnace flue gas purification device, including spray box 1, spray end cover 2, connecting mounting bracket 3, locking screw 4, adjusting screw rod 6, sliding adjusting rod 7, connecting pipe one 8, static electricity generating sleeve 9, exhaust end cover 10, connecting pipe two 11, connecting pipe three 12, liquid storage tank 13, intermittent interruption slide column 14, slide column connecting rod 15, articulated connecting rod 16, drive connecting rod 17, circulating A component 18, connecting pipe four 19, connecting pipe five 20, circulating B component 21, connecting pipe six 22, execution motor 23, drive disc 24, rectangular sliding groove 25, adjusting rod 26, rectangular sliding block 27, smoke inlet pipe 28, rectangular limiting convex 29, rectangular limiting opening 30, middle end connecting box 31, adsorption pipe 32, liquid outlet pipe 33, liquid outlet pipe opening 34, impact cone-shaped rotary body 35, transmission pulley one 36, transmission belt 37, the spray box 1 is fixedly installed with spray end cover 2, the spray end cover 2 is fixedly installed with connecting mounting bracket 3 through locking screw 4, the connecting mounting bracket 3 is rotatably installed with adjusting screw rod 6, the adjusting screw rod 6 is threadedly connected with sliding adjusting rod 7, the sliding adjusting rod 7 is slidably connected with the connecting mounting bracket 3, the sliding adjusting rod 7 is slidably connected with the spray end cover 2, the spray end cover 2 is fixedly installed with middle end connecting box 31, the middle end connecting box 31 is fixedly installed with connecting pipe two 11, the connecting pipe two 11 is fixedly installed at one end of connecting pipe three 12, the other end of connecting pipe three 12 is fixedly installed on circulating A component 18, the circulating A component 18 and liquid storage tank 13 are installed with connecting pipe four 19, the liquid storage tank 13 and circulating B component 21 are installed with connecting pipe five 20, the circulating B component 21 and the spray box 1 are installed with connecting pipe six 22, the spray box 1 is installed with execution motor 23, the execution motor 23 is a double-shaft motor, one end output shaft of the execution motor 23 is installed with drive disc 24, the drive disc 24 is provided with rectangular sliding groove 25, the rectangular sliding groove 25 is slidably installed with rectangular sliding block 27, the drive disc 24 is rotatably installed with adjusting rod 26, the adjusting rod 26 is threadedly connected with the rectangular sliding block 27, the rectangular sliding block 27 is provided with connecting column, the connecting column on the rectangular sliding block 27 is slidably installed on the drive connecting rod 17 and is limited by limiting ring, the drive connecting rod 17 is hingedly installed at one end of articulated connecting rod 16, the other end of the articulated connecting rod 16 is hingedly installed on the slide column connecting rod 15, the slide column connecting rod 15 is fixedly installed on intermittent interruption slide column 14, the intermittent interruption slide column 14 is slidably installed on connecting pipe two 11, the spray box 1 is fixedly installed with smoke inlet pipe 28, the spray box 1 is fixedly installed with connecting pipe one 8, the connecting pipe one 8 and the exhaust end cover 10 are installed with static electricity generating sleeve 9, the static electricity generating sleeve 9 is installed with adsorption pipe 32, so setting, the regenerative aluminum smelting furnace flue gas enters the spray box 1 through the smoke inlet pipe 28, and the execution motor 23 is started at the same time, the execution motor 23 drives the circulating A component 18 to make the liquid catalyst in the liquid storage tank 13 flow through the connecting pipe three 12 and the connecting pipe two 11, and enters the middle end connecting box 31,The liquid catalyst is sprayed through the outlet pipe opening 34 onto the impact cone-shaped rotating body 35. Through the impact force and the gap between the impact cone-shaped rotating body 35 and the outlet pipe 33 for easy spraying, the liquid catalyst is atomized, ensuring full contact between the liquid catalyst and the flue gas from the recycled aluminum smelting furnace in the spray box 1, thus treating the harmful gases in the flue gas. The treated harmful gases in the flue gas are discharged through the connecting pipe 8 and the electrostatic generator sleeve 9, and through the exhaust end cover 10. The static electricity of the adsorption pipe 32 adsorbs the fixed particles. Simultaneously... The rotation of motor 23 drives the drive disc 24 to rotate, which in turn drives the drive linkage 17 through the rectangular slide groove 25 and the rectangular slider 27. This drive linkage 17 then drives the hinged linkage 16 and the sliding column linkage 15, causing the two intermittently interrupted sliding columns 14 to reciprocate relative to each other. This intermittent reciprocating motion of the two intermittently interrupted sliding columns 14 intermittently interrupts the flow of catalyst fluid through connecting pipe 2 11, achieving intermittent atomization and injection of the liquid catalyst. This ensures that the atomized catalyst can fully contact the harmful gases in the flue gas and conserves liquid catalyst.

[0034] Example 2

[0035] like Figures 1-11 As shown, a liquid outlet pipe 33 is fixedly installed on the middle connecting box 31. Multiple liquid outlet pipes 33 are provided. An impact cone-shaped rotating body 35 is slidably installed on the liquid outlet pipe 33. A gap for convenient liquid catalyst injection is provided between the impact cone-shaped rotating body 35 and the liquid outlet pipe 33. The liquid outlet pipe 33 has multiple liquid outlet pipe openings 34. The impact cone-shaped rotating body 35 is fixedly installed on the sliding adjusting rod 7. With this configuration, manually rotating the adjusting threaded rod 6 adjusts the threaded connection between the threaded rod 6 and the sliding adjusting rod 7, causing the impact cone-shaped rotating body 35 to slide relative to the liquid outlet pipe opening 34. This changes the size of the gap between the impact cone-shaped rotating body 35 and the liquid outlet pipe 33 for convenient liquid catalyst injection, thereby adjusting the atomization effect of the liquid catalyst. By adjusting the atomization effect of the liquid catalyst, the contact effect between the liquid catalyst and harmful gases in the flue gas of the recycled aluminum smelting furnace is improved.

[0036] Among them, a plurality of the liquid outlet pipe openings 34 are arranged in a circumferential array along the liquid outlet pipe 33.

[0037] Among them, multiple liquid outlet pipes 33 are arranged in a circumferential array along the middle connecting box 31.

[0038] The device for purifying flue gas from a recycled aluminum smelting furnace according to claim 1 is characterized in that one end of the intermittent interruption sliding column 14 is provided with a pointed tip.

[0039] The intermittent interruption slide 14 has a rectangular limiting opening 30, and the connecting pipe 2 11 has a rectangular limiting protrusion 29. The rectangular limiting protrusion 29 and the rectangular limiting opening 30 slide and limit each other, so that the intermittent interruption slide 14 cannot be separated from the connecting pipe 2 11.

[0040] Example 3

[0041] like Figures 1-11 As shown, the circulation A component 18 includes a circulation connecting sleeve A18-1, a circulation impeller A18-2, and an impeller shaft A18-3. The circulation connecting sleeve A18-1 is installed between the connecting pipe three 12 and the connecting pipe four 19. The impeller shaft A18-3 is rotatably mounted on the circulation connecting sleeve A18-1, and the circulation impeller A18-2 is fixedly mounted on the impeller shaft A18-3. The impeller shaft A18-3 is connected to another output shaft of the actuator motor 23. A transmission pulley 36 is mounted on the other output shaft of the actuator motor 23 and is connected to the transmission belt 37. With this configuration, the actuator motor 23 rotates, driving the impeller shaft A18-3 and the circulation impeller A18-2 to rotate, thereby causing the liquid catalyst in the liquid storage tank 13 to flow through the connecting pipe four 19 to the connecting pipe three 12, while simultaneously driving the transmission belt 37 to move through the transmission pulley 36.

[0042] Example 4

[0043] like Figures 1-11 As shown, the circulation B assembly 21 includes a circulation connecting sleeve B21-1, a circulation impeller B21-2, an impeller shaft B21-3, and an impeller shaft pulley 21-4. The circulation connecting sleeve B21-1 is installed between the connecting pipe 5 20 and the connecting pipe 6 22. The impeller shaft B21-3 is rotatably mounted on the circulation connecting sleeve B21-1. The circulation impeller B21-2 is fixedly mounted at one end of the impeller shaft B21-3, and the impeller shaft pulley 21-4 is fixedly mounted at the other end of the impeller shaft B21-3. The shaft pulley 21-4 and the transmission belt 37 are connected to the impeller shaft pulley 21-4. With this configuration, the transmission belt 37 drives the impeller shaft pulley 21-4 to move, which in turn drives the circulating impeller B21-2 to rotate through the impeller shaft pulley 21-4 and the impeller shaft B21-3. This causes the liquid catalyst in the spray box 1, which has come into contact with the flue gas of the recycled aluminum smelting furnace, to flow back to the liquid storage tank 13 through the connecting pipe 20 and the connecting pipe 22, thereby realizing the recycling of the liquid catalyst.

[0044] It is to be understood that the present application is described by way of example only, and that modifications or alterations can be made to the features and embodiments described without departing from the spirit and scope of the application. In addition, modifications can be made to the features and embodiments described to accommodate specific situations and materials without departing from the spirit and scope of the application. Accordingly, the application is not limited to the specific embodiments disclosed herein, but rather, the scope of the application includes all embodiments falling within the scope of the claims.

Claims

1. A regenerative aluminum smelting furnace off-gas cleaning device, characterized by, The utility model relates to a kind of smoke cleaning device, including spray box (1), spray end cover (2), connecting mounting frame (3), locking screw (4), adjusting screw rod (6), sliding adjusting rod (7), connecting pipe one (8), electrostatic generation sleeve (9), exhaust end cover (10), connecting pipe two (11), connecting pipe three (12), liquid storage box (13), intermittent interruption slide column (14), slide column connecting rod (15), hinged connecting rod (16), drive connecting rod (17), circulation A component (18), connecting pipe four (19), connecting pipe five (20), circulation B component (21), connecting pipe six (22), execution motor (23), driving disc (24), rectangular sliding groove (25), adjusting rod (26), rectangular slider (27), smoke inlet pipe (28), rectangular limiting protrusion (29), rectangular limiting opening (30), middle end connecting box (31), adsorption pipe (32), liquid outlet pipe (33), liquid outlet pipe opening (34), impact conical rotary body (35), transmission pulley one (36), transmission belt (37), spray end cover (2) is fixedly installed on the spray box (1), connecting mounting frame (3) is fixedly installed on spray end cover (2) by locking screw (4), adjusting screw rod (6) is rotatably installed on connecting mounting frame (3), adjusting screw rod (6) is threadedly connected with sliding adjusting rod (7), sliding adjusting rod (7) is slidably connected with connecting mounting frame (3), sliding adjusting rod (7) is slidably connected with spray end cover (2), middle end connecting box (31) is fixedly installed on spray end cover (2), connecting pipe two (11) is fixedly installed on middle end connecting box (31), connecting pipe two (11) is fixedly installed at one end of connecting pipe three (12), the other end of connecting pipe three (12) is fixedly installed on circulation A component (18), connecting pipe four (19) is installed between circulation A component (18) and liquid storage box (13), connecting pipe five (20) is installed between liquid storage box (13) and circulation B component (21), connecting pipe six (22) is installed between circulation B component (21) and spray box (1), execution motor (23) is installed on spray box (1), execution motor (23) is double-shaft motor, driving disc (24) is installed at one end output shaft of execution motor (23), rectangular sliding groove (25) is opened on driving disc (24), rectangular slider (27) is slidably installed in rectangular sliding groove (25), adjusting rod (26) is rotatably installed on driving disc (24), adjusting rod (26) is threadedly connected with rectangular slider (27), connecting column is provided on rectangular slider (27), connecting column on rectangular slider (27) is slidably fitted on drive connecting rod (17) and is limited by limiting ring, drive connecting rod (17) is hingedly installed at one end of hinged connecting rod (16), hinged connecting rod (16) is hingedly installed at the other end of slide column connecting rod (15), slide column connecting rod (15) is fixedly installed on intermittent interruption slide column (14), intermittent interruption slide column (14) is slidably installed on connecting pipe two (11), smoke inlet pipe (28) is fixedly installed on spray box (1),The spray box (1) is fixedly provided with a connecting pipe I (8), and the connecting pipe I (8) and the smoke exhaust end cover (10) are provided with an electrostatic generating sleeve (9), and the electrostatic generating sleeve (9) is provided with an adsorption pipe (32).

2. The device for purifying flue gas of a secondary aluminum smelting furnace according to claim 1, characterized in that, The middle end connecting box (31) is fixedly provided with liquid outlet pipes (33), and a plurality of liquid outlet pipes (33) are arranged; the impact conical rotary body (35) is slidably arranged on the liquid outlet pipe (33); a gap for spraying liquid catalyst is arranged between the impact conical rotary body (35) and the liquid outlet pipe (33); the liquid outlet pipe (33) is provided with a plurality of liquid outlet pipe openings (34); and the impact conical rotary body (35) is fixedly arranged on the sliding adjusting rod (7).

3. The device for purifying flue gas of a secondary aluminum smelting furnace according to claim 2, characterized in that, The plurality of liquid outlet pipe openings (34) are arranged in a circumferential array along the liquid outlet pipe (33).

4. The device for purifying flue gas of a secondary aluminum smelting furnace according to claim 2, characterized in that, The plurality of liquid outlet pipes (33) are arranged in a circumferential array along the middle end connecting box (31).

5. The device for purifying flue gas of a secondary aluminum smelting furnace according to claim 1, characterized in that, The intermittent interruption slide column (14) is provided with a sharp head at one end.

6. The device for purifying flue gas of a secondary aluminum smelting furnace according to claim 5, characterized in that, The intermittent interruption slide column (14) is provided with a rectangular limiting opening (30); the connecting pipe two (11) is provided with a rectangular limiting protrusion (29); the rectangular limiting protrusion (29) and the rectangular limiting opening (30) are in sliding limiting connection; and the intermittent interruption slide column (14) cannot be separated from the connecting pipe two (11).

Citation Information

Patent Citations

  • Flue gas purification device and flue gas purification method

    CN118767646A

  • Catalyst spraying device

    CN220834948U