Aluminum electrolysis flue gas dedusting system

Abstract

The utility model relates to dust removal system technical field, concretely is a kind of aluminum electrolysis flue dust removal system, including dust remover, the bottom of dust remover is provided with dust remover box, the side of dust remover is connected with outlet flue, and outlet flue includes bend pipe;Bend pipe is fixedly connected with air chute;The left part of air chute is located inside the bottom end of bend pipe, and right part is located the outside of air chute;The part of air chute inside bend pipe is located in the top end opening;The right end of air chute is connected with gas lift machine, and the top of gas lift machine is connected with the side of dust remover by pipeline one;The utility model is through setting air chute, gas lift machine, can the dust that falls into bend pipe is recycled into dust remover box, to prevent dust accumulation in bend pipe bottom, cause the problem of dust removal system operation not normally.

Description

Technical Field

[0001] This utility model relates to the field of dust removal system technology, specifically an aluminum electrolysis flue gas dust removal system. Background Technology

[0002] The main function of the dust collector in the aluminum electrolysis feeding system is to purify the flue gas in the electrolysis workshop. Dust-laden gas enters the dust collector through the inlet and is adsorbed onto the filter bags by the suction force of the purification fan. After back-blowing cleaning, the particles fall into the housing, and the gas is discharged from the outlet. It then enters the desulfurization absorption tower for secondary purification through the outlet flue. The gas entering the outlet flue contains a small amount of dust, and dust accumulation is likely to occur at the bend at the bottom of the outlet flue. Severe dust accumulation in the outlet flue can lead to abnormal operation of the dust collection system, affecting the material supply and flue gas purification effect in the electrolysis workshop, and thus affecting environmental data. Utility Model Content

[0003] The main objective of this invention is to provide an aluminum electrolysis flue gas dust removal system to solve the problem in the prior art where dust easily accumulates at the bottom bend of the outlet flue of the aluminum electrolysis flue gas dust removal system, leading to abnormal operation of the dust removal system.

[0004] To achieve the above objectives, this utility model provides an aluminum electrolysis flue gas dust removal system, including a dust collector. The bottom of the dust collector has a dust collector housing, and the side of the dust collector is connected to an outlet flue, which includes a bend. A pneumatic chute is fixedly connected to the bend. The left part of the pneumatic chute is located at the bottom inside the bend, and the right part is located outside the bend. The top of the portion of the pneumatic chute inside the bend is open. An air lifter is connected to the right end of the pneumatic chute, and the top of the air lifter is connected to the side of the dust collector via a pipe.

[0005] Furthermore, the top area of ​​the portion of the pneumatic chute located inside the bend is larger than the cross-sectional area of ​​the bend.

[0006] Furthermore, the connection point between pipe 1 and the dust collector is located below the connection point between the bend and the dust collector.

[0007] Furthermore, the pneumatic chute includes an air chamber, a material chamber, and a porous permeable plate located between the air chamber and the material chamber.

[0008] Furthermore, the air-lifting machine includes an air chamber two, a material chamber two, and a porous permeable plate two located between the air chamber two and the material chamber two; a lifting pipe is installed inside the material chamber two, and an air jet pipe is installed in the air chamber two directly opposite the lifting pipe; the top of the air jet pipe is located above the porous permeable plate two and is fixedly connected to a nozzle, and the side of the air jet pipe is sealed and fixedly connected to the porous permeable plate two; both the air chamber two and the air jet pipe are connected to an air inlet pipe.

[0009] Furthermore, a recycling chute is connected to the bottom of the dust collector housing via a pipe.

[0010] This invention, by incorporating a pneumatic chute and an air lifter, can collect dust falling into the bend into the dust collector housing, thereby preventing dust from accumulating at the bottom of the bend and causing malfunctions in the dust collection system.

[0011] This invention, by setting the connection point between the pipe and the dust collector below the connection point between the bend and the dust collector, can prevent the dust collected by the dust collector from re-entering the bend. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0013] Figure 1 A schematic diagram of an embodiment of an aluminum electrolysis flue gas dust removal system; Figure 2 This is a schematic diagram of the air-lift machine in the embodiment; In the diagram: 1. Dust collector; 101. Dust collector housing; 2. Outlet flue; 201. Bend; 3. Pneumatic chute; 301. Air chamber one; 302. Material chamber one; 303. Perforated air plate one; 4. Air lifter; 401. Air chamber two; 402. Material chamber two; 403. Perforated air plate two; 404. Lifting pipe; 405. Air jet pipe; 406. Nozzle; 5. Pipe one; 6. Recovery chute. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] like Figures 1 to 2 As shown, according to an embodiment of the present invention, an aluminum electrolysis flue gas dust removal system is provided, including a dust collector 1. A dust collector housing 101 is provided at the bottom of the dust collector 1. An outlet flue 2 is connected to the side of the dust collector 1. The outlet flue 2 includes a bent pipe 201 connected to the dust collector 1. A pneumatic chute 3 is fixedly connected to the bent pipe 201. The left part of the pneumatic chute 3 is located at the bottom of the inside of the bent pipe 201, and the right part is located outside the bent pipe 201. The top of the part of the pneumatic chute 3 located inside the bent pipe 201 is open. An air lifter 4 is connected to the right end of the pneumatic chute 3. The top of the air lifter 4 is connected to the side of the dust collector 1 through a pipe 5.

[0016] The top area of ​​the portion of the pneumatic chute 3 located inside the bend 201 is larger than the cross-sectional area of ​​the bend 201, ensuring that when dust falls from inside the dust collector 1 to the bottom of the bend 201, the dust falls into the interior of the pneumatic chute 3 through the opening at the top of the pneumatic chute 3.

[0017] The connection point between pipe 15 and dust collector 1 is located below the connection point between bend 201 and dust collector 1; this prevents dust collected in dust collector 1 from re-entering bend 201.

[0018] The pneumatic chute 3 includes an air chamber 301, a material chamber 302, and a porous permeable plate 303 located between the air chamber 301 and the material chamber 302. The air chamber 301 is connected to an air supply pipe. The pneumatic chute 3 is used to transport the dust in the bend 201 to the air lifter 4.

[0019] The air-lifting machine 4 includes an air chamber 401, a material chamber 402, and a porous ventilation plate 403 located between the air chamber 401 and the material chamber 402. A lifting pipe 404 is installed inside the material chamber 402, and an air jet pipe 405 is installed in the air chamber 401 directly opposite the lifting pipe 404. The top of the air jet pipe 405 is located above the porous ventilation plate 403 and is fixedly connected to a nozzle 406. The side of the air jet pipe 405 is sealed and fixedly connected to the porous ventilation plate 403. Both the air chamber 401 and the air jet pipe 405 are connected to an air inlet pipe. The air-lifting machine 4 is used to collect dust into the dust collector 1.

[0020] In some embodiments, the bottom of the dust collector housing 101 is connected to a recovery chute 6 via a pipe; the recovery chute 6 is used to discharge dust from the bottom of the dust collector housing 101.

[0021] The working principle of the above embodiment is as follows: the flue gas containing a small amount of dust in the dust collector 1 is discharged along the outlet flue 2, and the dust in the flue gas falls into the bottom of the bend 201 and enters the pneumatic chute 3 at the bottom of the bend 201; the dust falls into the interior of the pneumatic chute 3 through the opening at the top of the pneumatic chute 3, and the pneumatic chute 3 transports the dust to the air lifter 4, and the air lifter 4 recovers the dust back into the dust collector 1; thus preventing dust from accumulating at the bottom of the bend 201.

[0022] The above embodiment, by setting up the pneumatic chute 3 and the air lifter 4, can recover the dust that falls into the bend 201 into the dust collector housing 101, thereby preventing dust from accumulating at the bottom of the bend 201 and causing the dust removal system to malfunction.

[0023] Existing dust removal systems that do not contain pneumatic chute 3 and air lifter 4 often experience dust accumulation at the bottom bend of the outlet flue, leading to malfunctions and shutdowns for maintenance. However, the aluminum electrolysis flue gas dust removal system described in the above embodiment eliminates the problem of dust accumulation at the bottom of bend 201, completely resolving the issue of malfunctions and shutdowns caused by dust accumulation at the bottom bend of the outlet flue.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aluminum electrolysis flue gas dust removal system, comprising a dust collector (1), a dust collector housing (101) disposed at the bottom of the dust collector (1), and an outlet flue (2) connected to the side of the dust collector (1), the outlet flue (2) comprising a bend (201); characterized in that, The bend (201) is fixedly connected to a pneumatic chute (3); the left part of the pneumatic chute (3) is located at the bottom inside the bend (201), and the right part is located outside the bend (201); the top of the part of the pneumatic chute (3) inside the bend (201) is open; the right end of the pneumatic chute (3) is connected to an air lifter (4), and the top of the air lifter (4) is connected to the side of a dust collector (1) through a pipe (5).

2. The aluminum electrolysis flue gas dust removal system as described in claim 1, characterized in that, The top area of ​​the portion of the pneumatic chute (3) located inside the bend (201) is greater than the cross-sectional area of ​​the bend (201).

3. The aluminum electrolysis flue gas dust removal system as described in claim 1, characterized in that, The connection point between the pipe (5) and the dust collector (1) is located below the connection point between the bend (201) and the dust collector (1).

4. The aluminum electrolysis flue gas dust removal system as described in claim 1, characterized in that, The pneumatic chute (3) includes an air chamber (301), a material chamber (302), and a porous permeable plate (303) located between the air chamber (301) and the material chamber (302).

5. The aluminum electrolysis flue gas dust removal system as described in claim 1, characterized in that, The air-lifting machine (4) includes an air chamber two (401), a material chamber two (402), and a porous permeable plate two (403) located between the air chamber two (401) and the material chamber two (402); a material lifting pipe (404) is provided inside the material chamber two (402), and an air jet pipe (405) is provided in the air chamber two (401) directly opposite the material lifting pipe (404); the top of the air jet pipe (405) is located above the porous permeable plate two (403) and is fixedly connected to a nozzle (406); the side of the air jet pipe (405) is sealed and fixedly connected to the porous permeable plate two (403), and both the air chamber two (401) and the air jet pipe (405) are connected to an air inlet pipe.

6. The aluminum electrolysis flue gas dust removal system as described in claim 1, characterized in that, The bottom of the dust collector housing (101) is connected to a recycling chute (6) via a pipe.

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