A fluidized bed furnace for producing sulfuric acid

Abstract

This utility model discloses a fluidized bed furnace for producing sulfuric acid, comprising a main body box, a furnace body at the upper end of the main body box, and a placement structure inside the main body box. The placement structure includes a placement plate and a fixing plate, with a handle fixedly mounted on the fixing plate. A top cover is provided at the upper end of the furnace body, and a cleaning structure is provided on the top cover, facilitating cleaning of the furnace body after production. The cleaning structure includes a scraper ring and a collection ring, with the collection ring fixedly mounted on the scraper ring. Two fixing rods are fixedly mounted on the top cover, and the scraper ring is positioned between the two fixing rods. The scraper ring engages with the inner wall of the furnace body, facilitating the scraping of dust through the interaction between the scraper ring and the inner wall of the furnace body.

Description

Technical Field

[0001] This utility model relates to the field of sulfuric acid production, and more specifically, it relates to a fluidized bed furnace for producing sulfuric acid. Background Technology

[0002] Sulfuric acid is very common in industrial production. The production process typically involves heating pyrite ore, introducing oxygen or air during heating, and reacting the heated pyrite with the air to produce sulfur dioxide. This sulfur dioxide is then used to produce sulfuric acid. During sulfuric acid production, the combustion of coke and ore in the furnace generates a large amount of dust. This dust adheres to the furnace walls, reducing the furnace space and hindering gas movement, thus affecting the operation of the fluidized bed furnace and the production of sulfuric acid. Furthermore, after the ore and coke have burned, the slag often needs to be removed. Existing fluidized bed furnaces typically use baffles or perforated plates to hold the coke and ore. However, as the coke and ore burn, some of the resulting ash and slag pass through the holes and fall into other parts of the furnace, making cleaning difficult and hindering the complete removal of ash and slag after production, thus affecting the operation of the fluidized bed furnace. Utility Model Content

[0003] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a fluidized bed furnace for producing sulfuric acid, so as to solve the technical problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed furnace for producing sulfuric acid, comprising a main body box, a furnace body at the upper end of the main body box, a placement structure inside the main body box, the placement structure comprising a placement plate and a fixing plate, a handle fixedly disposed on the fixing plate, a top cover at the upper end of the furnace body, and a cleaning structure disposed on the top cover, thereby facilitating cleaning of the furnace body after production; The cleaning structure includes a scraping ring and a collecting ring. The collecting ring is fixedly mounted on the scraping ring. A fixing rod is fixedly mounted on the upper cover. There are two fixing rods. The scraping ring is positioned between the two fixing rods. The scraping ring cooperates with the inner wall of the furnace body, thereby facilitating the scraping of dust through the cooperation between the scraping ring and the inner wall of the furnace body.

[0005] The present invention is further configured such that the placement plate and the main body box cooperate with each other, the main body box is provided with a connecting groove, and connecting blocks are fixedly provided at both ends of the placement plate. The connecting blocks and the connecting groove cooperate with each other, and the fixing plate is fixedly provided at one end of the placement plate, thereby forming the entire placement structure.

[0006] The present invention is further configured such that the placement plate has through holes, and multiple through holes are provided; an extension block is fixedly provided on the main body box; a limit block is provided on the extension block; the limit block and the extension block are rotatably connected; and a damping is provided between the limit block and the extension block, thereby limiting the fixed plate through the limit block.

[0007] The present invention is further configured such that a ramp is provided at the lower end of the placement plate inside the main body box, the ramp is fixedly connected to the main body box, and a fan door is provided on the fixed plate, the fan door is rotatably connected to the fixed plate, thereby facilitating the collection of falling ash and slag through the fan door and the ramp.

[0008] The present invention is further configured such that an extension plate is fixedly provided on both the main body box and the upper cover, and an electric push rod is provided between the extension plate of the main body box and the extension plate of the upper cover. The fixed end of the electric push rod is fixedly connected to the extension plate of the main body box, and the moving end of the electric push rod is fixedly connected to the extension plate of the upper cover, so that the upper cover is moved by the extension of the electric push rod.

[0009] The present invention is further configured such that both ends of the scraper ring are fixedly provided with mating blocks, the lower end of the fixing rod is provided with a notch, the notch and the mating block are mutually engaged, both the fixing rod and the mating block are provided with connecting holes, the connecting holes are provided with threads, and the connecting holes on the fixing rod and the mating block are bolted together, thereby facilitating the connection between the scraper ring and the fixing rod.

[0010] The present invention is further configured such that a fixing frame is fixedly installed on the upper cover, a pump is installed on the fixing frame, a discharge pipe is installed at one end of the pump, a connecting pipe is installed at the other end of the pump, and an air inlet pipe is installed on the main body box, thereby facilitating the collection of the generated gas by the pump.

[0011] The present invention is further configured such that the connecting pipe passes through the upper cover, and a collecting cover is provided on the upper cover between the two fixed rods. The collecting cover is fixedly connected to the fixed rods, and the other end of the connecting pipe is fixedly connected to the collecting cover. The extraction pump is connected to the collecting cover through the connecting pipe, thereby facilitating the movement of gas.

[0012] (III) Beneficial Effects Compared with the prior art, the present invention provides a fluidized bed furnace for producing sulfuric acid, which has the following beneficial effects: 1. This utility model, through its placement structure, allows for the production of sulfur dioxide. Burning coke and ore are placed on a placement plate, and air is introduced into the furnace via an external gas supply device and an air inlet pipe. This causes a reaction within the furnace to produce sulfur dioxide. A pump installed on the top cover connects to a collection hood to extract the sulfur dioxide. The sulfur dioxide produced is then drawn out from the collection hood through a connecting pipe and pumped out. The sulfur dioxide is then transported to other production devices via an exhaust pipe, thus enabling the production of sulfuric acid and facilitating the generation and collection of sulfur dioxide gas.

[0013] 2. This utility model, by setting up a placement plate, allows the limiting block on the extension block to be rotated after production is completed, so that the limiting block no longer obstructs the fixed plate. Then, by pulling the handle, the placement plate can be pulled out from the main body box, thereby collecting the ash and slag generated after production on the placement plate. The ash and slag that fall through the through hole to the bottom of the main body box falls onto the inclined platform. The fan door is opened by the rotational connection between the fan door and the fixed plate, which facilitates the collection of the fallen ash and slag, thus facilitating the cleaning of the ash and slag generated in the fluidized bed furnace after production.

[0014] 3. This utility model, through the setting of a cleaning structure, after production is completed, the extension of the electric push rod drives the upper cover to rise. During the rise of the upper cover, the scraper ring installed on the fixed rod moves upward. Through the contact between the scraper ring and the inner wall of the furnace, the dust adhering to the inner wall of the furnace is scraped off. The scraped dust slides down the upper surface of the scraper ring and falls into the collection ring for collection. By unscrewing the bolts out of the connection holes, the scraper ring and the collection ring can be disassembled, and the dust can be poured out, thus completing the cleaning of the furnace body. This facilitates quick cleaning of the furnace body after production is completed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a fluidized bed furnace used for sulfuric acid production. Figure 2 This is a schematic diagram of the overall structure of a fluidized bed furnace used for sulfuric acid production. Figure 3 This is a schematic diagram of the fitting structure between the top cover and the furnace body of a fluidized bed furnace used for sulfuric acid production. Figure 4 This is a schematic diagram of the fit between the top cover and the cleaning structure of a fluidized bed furnace used for sulfuric acid production. Figure 5 This is a schematic diagram of the placement structure of a fluidized bed furnace used for sulfuric acid production.

[0016] In the diagram: 1. Main body box; 2. Furnace body; 3. Placement plate; 4. Fixing plate; 5. Handle; 6. Top cover; 7. Scraper ring; 8. Collection ring; 9. Fixing rod; 10. Connecting groove; 11. Connecting block; 12. Through hole; 13. Extension block; 14. Limiting block; 15. Inclined platform; 16. Fan door; 17. Extension plate; 18. Electric push rod; 19. Mating block; 20. Notch; 21. Connecting hole; 22. Fixing frame; 23. Extraction pump; 24. Discharge pipe; 25. Connecting pipe; 26. Collection cover. Detailed Implementation

[0017] 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.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figure 1-5 A fluidized bed furnace for producing sulfuric acid includes a main body box 1, a furnace body 2 at the upper end of the main body box 1, a placement structure inside the main body box 1, the placement structure including a placement plate 3 and a fixing plate 4, a handle 5 fixedly installed on the fixing plate 4, an upper cover 6 at the upper end of the furnace body 2, and a cleaning structure on the upper cover 6. The cleaning structure includes a scraper ring 7 and a collection ring 8. The collection ring 8 is fixedly mounted on the scraper ring 7. A fixing rod 9 is fixedly mounted on the upper cover 6. There are two fixing rods 9. The scraper ring 7 is positioned between the two fixing rods 9. The scraper ring 7 cooperates with the inner wall of the furnace body 2.

[0021] In this embodiment, the placement structure facilitates the placement of ores, and the main structure of the fluidized bed furnace is formed by the cooperation of the furnace body 2 and the main body box 1.

[0022] More specifically, the cleaning structure facilitates the cleaning of the furnace body 2 after production is completed, and the dust is scraped off by the cooperation of the scraper ring 7 and the inner wall of the furnace body 2.

[0023] Please see Figures 1-5As one implementation method for the entire fluidized bed furnace: the placement plate 3 and the main body box 1 cooperate with each other. The main body box 1 has a connecting groove 10. Both ends of the placement plate 3 are fixedly provided with connecting blocks 11, which cooperate with the connecting groove 10. A fixing plate 4 is fixedly provided at one end of the placement plate 3. The placement plate 3 has multiple through holes 12. An extension block 13 is fixedly provided on the main body box 1. A limit block 14 is provided on the extension block 13. The limit block 14 and the limit block 14 are connected to the main body box 1. The extension blocks 13 are rotatably connected, and the limiting block 14 is damped to the extension blocks 13. An inclined platform 15 is located at the lower end of the placement plate 3 inside the main body box 1, and the inclined platform 15 is fixedly connected to the main body box 1. A fan door 16 is provided on the fixed plate 4, and the fan door 16 is rotatably connected to the fixed plate 4. Extension plates 17 are fixedly provided on both the main body box 1 and the upper cover 6. An electric push rod 18 is provided between the extension plates 17 of the main body box 1 and the extension plates 17 of the upper cover 6. The fixed end of the electric push rod 18 is located at the main body box 1. The extension plates 17 are fixedly connected to each other. The moving end of the electric push rod 18 is fixedly connected to the extension plate 17 of the upper cover 6. Both ends of the scraper ring 7 are fixedly provided with mating blocks 19. The lower end of the fixed rod 9 is provided with a notch 20, which is mated with the mating block 19. Both the fixed rod 9 and the mating block 19 are provided with connecting holes 21. The connecting holes 21 are provided with threads. The connecting holes 21 on the fixed rod 9 and the connecting holes 21 on the mating block 19 are bolted together. The upper cover 6 is fixedly provided with A fixed frame 22 is provided, and a pump 23 is provided on the fixed frame 22. One end of the pump 23 is provided with a discharge pipe 24, and the other end of the pump 23 is provided with a connecting pipe 25. An air inlet pipe is provided on the main body box 1. The connecting pipe 25 passes through the upper cover 6. A collection cover 26 is provided on the upper cover 6 between two fixed rods 9. The collection cover 26 is fixedly connected to the fixed rods 9. The other end of the connecting pipe 25 is fixedly connected to the collection cover 26. The pump 23 and the collection cover 26 are connected through the connecting pipe 25. Specifically, after production is completed, the limiting block 14 on the rotating extension block 13 is rotated so that the limiting block 14 no longer obstructs the fixed plate 4. Then, by pulling the handle 5, the placement plate 3 is pulled out from the main body box 1, allowing the collection of ash residue generated during production on the placement plate 3. Ash residue that falls through the through hole 12 to the bottom of the main body box 1 falls onto the inclined platform 15. The fan door 16, connected to the fixed plate 4, is rotated to open, facilitating the collection of the fallen ash residue. During production... After production is completed, the upper cover 6 is raised by the extension of the electric push rod 18. During the rise of the upper cover 6, the scraper ring 7 installed on the fixed rod 9 moves upward. Through the contact between the scraper ring 7 and the inner wall of the furnace body 2, the dust adhering to the inner wall of the furnace body 2 is scraped off. The scraped dust slides down the upper surface of the scraper ring 7 and falls into the collection ring 8 for collection. By unscrewing the bolt out of the connection hole 21, the scraper ring 7 and the collection ring 8 can be disassembled and the dust can be dumped, thus completing the cleaning of the furnace body 2.

[0024] In summary, when using it as a whole: When sulfur dioxide is produced, burning coke and ore are placed on the placement plate 3. Air is introduced into the furnace body 2 through an external air supply device and an air inlet pipe, thereby producing sulfur dioxide through a reaction in the furnace body 2. The sulfur dioxide is extracted through the connection between the extraction pump 23 on the upper cover 6 and the collection hood 26. The sulfur dioxide produced by the reaction is extracted from the collection hood 26 through the connecting pipe 25 by the extraction pump 23. The sulfur dioxide is then transported to other production devices through the exhaust pipe.

[0025] After production is completed, the limiting block 14 on the extension block 13 is rotated so that the limiting block 14 no longer obstructs the fixed plate 4. Then, the placement plate 3 is pulled out from the main body box 1 by pulling the handle 5, so that the ash and slag generated after production on the placement plate 3 can be collected. The ash and slag that fall through the hole 12 to the bottom of the main body box 1 falls onto the inclined platform 15. The fan door 16 is rotated and connected to the fixed plate 4, so that the fan door 16 can be opened to facilitate the collection of the fallen ash and slag. The extension of the electric push rod 18 drives the upper cover 6 to rise. During the rise of the upper cover 6, the scraper ring 7 installed on the fixed rod 9 moves upward. Through the contact between the scraper ring 7 and the inner wall of the furnace body 2, the dust adhering to the inner wall of the furnace body 2 is scraped off. The scraped dust slides down the upper surface of the scraper ring 7 and falls into the collection ring 8 for collection. By unscrewing the bolt out of the connection hole 21, the scraper ring 7 and the collection ring 8 can be disassembled and the dust can be dumped, thus completing the cleaning of the furnace body 2.

[0026] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed furnace for producing sulfuric acid, comprising a main chamber (1), characterized in that: The main body box (1) is provided with a furnace body (2) at the upper end. The main body box (1) is provided with a placement structure, which includes a placement plate (3) and a fixing plate (4). A handle (5) is fixedly provided on the fixing plate (4). The furnace body (2) is provided with a top cover (6) at the upper end. A cleaning structure is provided on the top cover (6). The cleaning structure includes a scraping ring (7) and a collecting ring (8). The collecting ring (8) is fixedly mounted on the scraping ring (7). A fixing rod (9) is fixedly mounted on the upper cover (6). There are two fixing rods (9). The scraping ring (7) is located between the two fixing rods (9). The scraping ring (7) cooperates with the inner wall of the furnace body (2).

2. A fluidized bed furnace for producing sulfuric acid according to claim 1, characterized in that: The placement plate (3) and the main body box (1) cooperate with each other. The main body box (1) is provided with a connecting groove (10). Both ends of the placement plate (3) are fixedly provided with connecting blocks (11). The connecting blocks (11) and the connecting groove (10) cooperate with each other. The fixing plate (4) is fixedly provided at one end of the placement plate (3).

3. A fluidized bed furnace for producing sulfuric acid according to claim 2, characterized in that: The placement plate (3) has a through hole (12) and multiple through holes (12). An extension block (13) is fixedly installed on the main body box (1). A limit block (14) is installed on the extension block (13). The limit block (14) and the extension block (13) are rotatably connected. A damping is provided between the limit block (14) and the extension block (13).

4. A fluidized bed furnace for producing sulfuric acid according to claim 2, characterized in that: An inclined platform (15) is provided inside the main body box (1) at the lower end of the placement plate (3). The inclined platform (15) is fixedly connected to the main body box (1). A fan door (16) is provided on the fixed plate (4). The fan door (16) is rotatably connected to the fixed plate (4).

5. A fluidized bed furnace for producing sulfuric acid according to claim 1, characterized in that: Both the main body box (1) and the top cover (6) are fixedly provided with extension plates (17). An electric push rod (18) is provided between the extension plate (17) of the main body box (1) and the extension plate (17) of the top cover (6). The fixed end of the electric push rod (18) is fixedly connected to the extension plate (17) of the main body box (1), and the moving end of the electric push rod (18) is fixedly connected to the extension plate (17) of the top cover (6).

6. A fluidized bed furnace for producing sulfuric acid according to claim 1, characterized in that: Both ends of the scraper ring (7) are fixedly provided with mating blocks (19). The lower end of the fixing rod (9) is provided with a notch (20). The notch (20) and the mating block (19) are mutually matched. Both the fixing rod (9) and the mating block (19) are provided with connecting holes (21). The connecting holes (21) are provided with threads. The connecting holes (21) on the fixing rod (9) and the connecting holes (21) on the mating block (19) are bolted together.

7. A fluidized bed furnace for producing sulfuric acid according to claim 1, characterized in that: A fixing frame (22) is fixedly installed on the upper cover (6), and a pump (23) is installed on the fixing frame (22). A discharge pipe (24) is installed at one end of the pump (23), and a connecting pipe (25) is installed at the other end of the pump (23). An air inlet pipe is installed on the main body box (1).

8. A fluidized bed furnace for producing sulfuric acid according to claim 7, characterized in that: The connecting pipe (25) passes through the upper cover (6), and a collection cover (26) is provided on the upper cover (6) between two fixing rods (9). The collection cover (26) is fixedly connected to the fixing rods (9), and the other end of the connecting pipe (25) is fixedly connected to the collection cover (26). The extraction pump (23) is connected to the collection cover (26) through the connecting pipe (25).

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