Electrolytic aluminum flue gas desulfurization device

Abstract

The invention relates to a desulfurization device, in particular to an electrolytic aluminum flue gas desulfurization device which comprises a support, a device body is fixedly mounted on the support, a desulfurization cavity is formed in the device body, an air guide opening is formed in the bottom of the desulfurization cavity in a penetrating mode, and scraper mechanisms are slidably mounted on the three side walls of the device body. The scraper mechanism comprises a plurality of hydraulic cylinders, piston rods of the hydraulic cylinders are fixedly connected with connecting bent rods, scrapers are fixedly installed at one ends of every two symmetrical connecting bent rods, and the scrapers are tightly attached to the inner wall of the device body. And the scraping plate is driven to move downwards by clinging to the inner wall of the main body, so that other products such as gypsum slag adhered to the inner wall are removed.

Description

Technical Field

[0001] The invention relates to a desulfurization device, in particular to an electrolytic aluminum flue gas desulfurization device. Background Art

[0002] The flue gas emitted during the production of electrolytic aluminum contains a large amount of pollutants, including fluoride, dust, asphalt smoke (low concentration) and SO2. The SO2 in the flue gas mainly comes from the pre-baked anode of the electrolytic cell production raw materials. Under the high temperature environment in the electrolytic cell, the sulfur in the anode carbon block is oxidized into SO2 and enters the electrolytic flue gas. Desulfurization of electrolytic aluminum flue gas is an indispensable process in the treatment of electrolytic aluminum flue gas. Electrolytic aluminum flue gas is only allowed to be discharged after desulfurization. An electrolytic aluminum flue gas desulfurization device is required in this process. The desulfurization device in the existing technology is not easy to clean and recover the large amount of gypsum slag and other by-products generated when the desulfurization is completed. Therefore, a new type of electrolytic aluminum flue gas desulfurization device is urgently needed to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to solve the defects mentioned in the above background technology by proposing an electrolytic aluminum flue gas desulfurization device.

[0004] The technical solution adopted by the present invention is as follows:

[0005] Provided is an electrolytic aluminum flue gas desulfurization device, comprising a bracket, on which a device body is fixedly mounted, a desulfurization chamber is provided inside the device body, an air guide port is provided through the bottom of the desulfurization chamber, and scraper mechanisms are slidably mounted on three side walls of the device body, the scraper mechanisms comprising a plurality of hydraulic cylinders, piston rods of the plurality of hydraulic cylinders are fixedly connected to connecting bent rods, and scrapers are fixedly mounted on one end of two symmetrical connecting bent rods, and the scrapers are closely attached to the inner wall of the device body.

[0006] As a preferred technical solution of the present invention: an air inlet pipe is fixedly installed on the side wall of the device body close to the bottom, and an exhaust pipe is fixedly installed on the top of the device body, and the air inlet pipes of the exhaust pipes are both connected to the desulfurization chamber.

[0007] As a preferred technical solution of the present invention: the side wall of the device body is penetrated with symmetrical discharge ports, and connecting pipes are symmetrically fixedly installed on the discharge ports. One end of the connecting pipe is fixedly connected to a collection box, and the connecting pipe is connected to the collection box.

[0008] As a preferred technical solution of the present invention: support plates are fixedly installed on the side walls of three sides of the device body close to the top, the hydraulic cylinder is fixedly installed on the support plate, and the piston rod of the hydraulic cylinder penetrates and is slidably installed in the support plate.

[0009] As a preferred technical solution of the present invention: a cover box is fixedly installed on three side walls of the device body, the cover box is located above the discharge port, and the scraper mechanism is located inside the cover box.

[0010] As a preferred technical solution of the present invention: a plurality of slide grooves are formed through three side walls of the device body, a plurality of the slide grooves are located below the support plate and above the discharge port, and a plurality of the connecting bent rods are slidably installed in the slide grooves.

[0011] As a preferred technical solution of the present invention: a symmetrical mounting plate is fixedly installed on the inner wall of the device body near the top, a filter screen plate is fixedly installed in the upper mounting plate, and an activated carbon plate is fixedly installed in the lower mounting plate.

[0012] As a preferred technical solution of the present invention: a water storage tank plate is fixedly installed below the symmetrical mounting plate, a plurality of atomizing nozzles are fixedly installed at the bottom of the water storage tank plate, and the plurality of atomizing nozzles are connected to the inside of the water storage tank plate.

[0013] The present invention provides an electrolytic aluminum flue gas desulfurization device. Through the scraper mechanism, after starting a plurality of hydraulic cylinders, the piston rod drives the scraper to move downward close to the inner wall of the main body, so that the gypsum slag and other impurity products attached to the inner wall of the device after desulfurization are scraped away and finally recycled into a collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0015] Figure 2 It is an internal explosion analysis diagram of the device body of an embodiment of the present invention;

[0016] Figure 3 This is a second-angle analysis diagram of the internal explosion of the device body according to an embodiment of the present invention.

[0017] The meaning of each mark in the figure is:

[0018] 1. Bracket; 2. Device body; 3. Inlet pipe; 4. Exhaust pipe; 5. Connecting pipe; 6. Collecting box; 7. Cover box; 8. Air guide port; 9. Support plate; 10. Hydraulic cylinder; 11. Connecting bent rod; 12. Water storage tank plate; 13. Atomizing nozzle; 14. Mounting plate; 15. Activated carbon plate; 16. Filter screen plate; 17. Scraper. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this embodiment can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example:

[0021] Reference Figure 1-3 As shown, a preferred embodiment of the present invention provides an electrolytic aluminum flue gas desulfurization device, including a bracket 1, a device body 2 is fixedly installed on the bracket 1, a desulfurization chamber is opened inside the device body 2, an air guide port 8 is opened through the bottom of the desulfurization chamber, a scraper mechanism is slidably installed on three side walls of the device body 2, the scraper mechanism includes a plurality of hydraulic cylinders 10, a support plate 9 is fixedly installed on the side walls of the three sides of the device body 2 near the top, the hydraulic cylinder 10 is fixedly installed on the support plate 9, the piston rod of the hydraulic cylinder 10 penetrates and is slidably installed in the support plate 9, and the plurality of hydraulic The piston rod of the cylinder 10 is fixedly connected to the connecting bent rod 11, and a scraper 17 is fixedly installed at one end of the two symmetrical connecting bent rods 11. The scraper 17 is close to the inner wall of the device body 2, and an air intake pipe 3 is fixedly installed on the side wall of the device body 2 near the bottom. An exhaust pipe 4 is fixedly installed on the top of the device body 2. The air intake pipe 3 of the exhaust pipe 4 is connected to the desulfurization chamber. After several hydraulic cylinders 10 are started, the scraper mechanism is set up, and the piston rod drives the scraper 17 connected to the connecting bent rod 11 to scrape the gypsum slag and impurities generated by electrolysis on the inner wall of the desulfurization chamber.

[0022] Secondly, a symmetrical discharge port is formed through the side wall of the device body 2, and a connecting pipe 5 is fixedly installed at the symmetrical discharge port. One end of the connecting pipe 5 is fixedly connected to a collecting box 6, and the connecting pipe 5 is connected to the collecting box 6. Impurities such as gypsum slag scraped off by the scraper 17 will flow along the connecting pipe 5 into the collecting box 6 for recovery.

[0023] Secondly, the three side walls of the device body 2 are fixedly installed with a cover box 7, the cover box 7 is located above the discharge port, and the scraper mechanism is located inside the cover box 7. The three side walls of the device body 2 are penetrated by a number of slide grooves, which are located below the support plate 9 and above the discharge port, and a number of connecting bent rods 11 are slidably installed in the slide grooves.

[0024] Secondly, a symmetrical mounting plate 14 is fixedly installed on the inner wall of the device body 2 near the top, a filter screen plate 16 is fixedly installed in the upper mounting plate 14, and an activated carbon plate 15 is fixedly installed in the lower mounting plate 14. The activated carbon plate 15 and the filter screen plate 16 will filter the smoke.

[0025] Finally, a water tank plate 12 is fixedly installed below the symmetrical mounting plate 14, and a plurality of atomizing nozzles 13 are fixedly installed at the bottom of the water tank plate 12. The plurality of atomizing nozzles 13 are connected to the inside of the water tank plate 12. The water tank plate 12 contains spray liquid for desulfurizing the electrolytic aluminum fume. The plurality of atomizing nozzles 13 can increase the contact area between the spray liquid and the aluminum fume, thereby increasing the desulfurization efficiency.

[0026] When operation is required, the aluminum fume is connected to the air inlet pipe 3, and the aluminum fume enters the desulfurization chamber along the air inlet pipe 3 and the air guide port 8, and a plurality of atomizing nozzles 13 are started. The atomizing nozzles 13 spray water mist and react with the flue gas to perform desulfurization. The activated carbon plate 15 and the filter screen plate 16 set will filter the flue gas after the reaction, and finally the filtered flue gas is discharged from the exhaust pipe 4. When the desulfurization is completed, a large amount of gypsum slag and other impurities will adhere to the inner wall of the device. At this time, a plurality of hydraulic cylinders 10 are started, and the piston rod drives the scraper 17 connected to the connecting bent rod 11 to scrape the inner wall of the device downward, and finally the scraped gypsum slag and other impurities will enter the collection box 6 along the connecting pipe 5 for recovery.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electrolytic aluminum flue gas desulfurization device, comprising a bracket (1), a device body (2) fixedly mounted on the bracket (1), a desulfurization chamber provided inside the device body (2), an air guide port (8) penetrating through the bottom of the desulfurization chamber, and scraper mechanisms slidably mounted on three side walls of the device body (2), characterized in that: The scraper mechanism comprises a plurality of hydraulic cylinders (10), the piston rods of the plurality of hydraulic cylinders (10) being fixedly connected to connecting bent rods (11), and a scraper (17) being fixedly mounted on one end of two symmetrical connecting bent rods (11), and the scraper (17) being closely attached to the inner wall of the device body (2).

2. The aluminum electrolytic flue gas desulfurization device according to claim 1, characterized in that: An air inlet pipe (3) is fixedly mounted on the side wall of the device body (2) close to the bottom, and an exhaust pipe (4) is fixedly mounted on the top of the device body (2), and the air inlet pipe (3) of the exhaust pipe (4) is connected to the desulfurization chamber.

3. The electrolytic aluminum flue gas desulfurization device according to claim 1, characterized in that: A symmetrical discharge port is formed through the side wall of the device body (2), and a connecting pipe (5) is fixedly installed symmetrically to the discharge port. One end of the connecting pipe (5) is fixedly connected to a collection box (6), and the connecting pipe (5) is connected to the collection box (6).

4. The aluminum electrolytic flue gas desulfurization device according to claim 1, characterized in that: The side walls of the device body (2) on three sides close to the top are fixedly mounted with support plates (9), the hydraulic cylinder (10) is fixedly mounted on the support plate (9), and the piston rod of the hydraulic cylinder (10) penetrates and is slidably mounted in the support plate (9).

5. The aluminum electrolytic flue gas desulfurization device according to claim 1, characterized in that: A cover box (7) is fixedly mounted on three side walls of the device body (2); the cover box (7) is located above the discharge port, and the scraper mechanism is located inside the cover box (7).

6. The aluminum electrolytic flue gas desulfurization device according to claim 1, characterized in that: A plurality of slide grooves are formed through the three side walls of the device body (2), and the plurality of slide grooves are located below the support plate (9) and above the discharge port, and the plurality of connecting bent rods (11) are slidably installed in the slide grooves.

7. The aluminum electrolytic flue gas desulfurization device according to claim 1, characterized in that: A symmetrical mounting plate (14) is fixedly mounted on the inner wall of the device body (2) near the top, a filter screen plate (16) is fixedly mounted in the upper mounting plate (14), and an activated carbon plate (15) is fixedly mounted in the lower mounting plate (14).

8. The aluminum electrolytic flue gas desulfurization device according to claim 7, characterized in that: A water storage tank plate (12) is fixedly mounted below the symmetrical mounting plate (14), and a plurality of atomizing nozzles (13) are fixedly mounted at the bottom of the water storage tank plate (12), and the plurality of atomizing nozzles (13) are connected to the interior of the water storage tank plate (12).

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