Roasting furnace for aluminum oxide production

Abstract

The utility model relates to the technical field of roasting furnaces, in particular to a roasting furnace for aluminum oxide production, which comprises a roasting furnace and an adsorption mechanism arranged at the top end of the roasting furnace, the adsorption mechanism comprises a rotating frame capable of being driven by a motor to rotate, and a plurality of dust adsorbers are uniformly arranged on the inner wall of the rotating frame. Compared with the prior art, according to the roasting furnace for aluminum oxide production, the motor of the adsorption mechanism drives the rotating frame to rotate at the top end of the roasting furnace, when material particles enter the roasting furnace from the top end, the dispersed and suspended particles can rotate along with the rotating frame to be rapidly adsorbed by the dust adsorber, and therefore the material particles can be rapidly adsorbed. Therefore, the purpose of reducing dust flying can be achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of alumina roasting furnaces, and in particular relates to a roasting furnace for alumina production. Background Technology

[0002] During the production or testing of alumina roasting, the feeding or input of dried material particles into the roasting furnace can easily generate a large amount of dust, which can pollute the environment and pose certain safety hazards. Current alumina roasting production mainly uses multiple air handling units to reduce suspended dust emissions from the exhaust gas generated by the roasting furnace, but it fails to effectively treat the suspended dust generated during material input. Utility Model Content

[0003] The purpose of this invention is to provide a calcining furnace for alumina production, which solves the problem of suspended dust during material input.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a calcining furnace for alumina production, comprising:

[0006] roasting oven; and

[0007] An adsorption mechanism is disposed on the top of the roasting furnace. The adsorption mechanism includes a mounting frame, a connecting ring adapted to the roasting furnace is rotatably connected inside the mounting frame, a rotating frame is fixedly connected to the connecting ring, a plurality of dust adsorbers are evenly arranged on the inner wall of the rotating frame, a rotating column is fixedly connected to the outer surface of the rotating frame, and a driven wheel is fixedly connected to the outer surface of the rotating column. A fixing plate is fixedly connected to the top of the roasting furnace, a fixing seat is fixedly connected to the outer surface of the fixing plate, a motor is disposed on the fixing seat, the output shaft of the motor is fixedly connected to a rotating shaft through a coupling, and a driving wheel is fixedly connected to the rotating shaft; the driving wheel and the driven wheel mesh with each other.

[0008] According to some embodiments of this application, the outer surface of the mounting frame is uniformly provided with a plurality of threaded bolts for connecting to the roasting furnace.

[0009] According to some embodiments of this application, the bottom of the rotating column is rotatably connected to the top of the mounting frame.

[0010] According to some embodiments of this application, the dust collector is a humidified adsorption plate.

[0011] According to some embodiments of this application, the calcining furnace for alumina production further includes:

[0012] The removal mechanism is configured to fit against the outer surface of the roasting furnace; the removal mechanism includes an annular scraper capable of reciprocating along the axial direction of the roasting furnace.

[0013] According to some embodiments of this application, the removal mechanism further includes a crown gear meshing with the drive wheel. The crown gear is rotatably mounted on the fixed plate. The crown gear is connected to a pulley one. The pulley one is connected to a pulley two via a belt drive. The pulley two is fixedly connected to a rotating rod. A turntable is fixedly connected to the end of the rotating rod away from the pulley two. The turntable is drively connected to the annular scraper.

[0014] According to some embodiments of this application, the rotating rod is rotatably connected to the limiting block, the limiting block is fixed to the top of the extension plate, and the extension plate is fixedly disposed in the roasting furnace.

[0015] According to some embodiments of this application, an off-axis is fixedly connected to the side of the turntable away from the pulley two, the off-axis is slidably connected to the moving groove, a moving block is fixedly connected to the side of the moving groove away from the turntable, the end of the moving block away from the moving groove is fixedly connected to the annular scraper, a sliding plate is fixedly connected to the bottom of the moving block, and the sliding plate slides through the extension plate.

[0016] According to some embodiments of this application, a collection frame is connected to the outer surface of the roasting furnace, the collection frame is connected to the roasting furnace by bolts and threads, and the collection frame is located below the annular scraper.

[0017] According to some embodiments of this application, the inner wall of the annular scraper is provided with a heat-resistant scraping layer that conforms to the outer surface of the roasting furnace.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention incorporates a dust collector and utilizes a motor to drive a rotating frame. The rotating frame, in turn, drives the dust collector to rotate, allowing suspended dust generated by material particles fed into the roasting furnace via the rotating frame to be quickly adsorbed by the dust collector through diffusion or airflow. This reduces dust dispersion and effectively suppresses the adverse effects caused by the suspension and diffusion of dust generated during material feeding. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the adsorption mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the humidification plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the removal mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the off-axis assembly of this utility model;

[0026] Figure 6 This is a schematic diagram of the assembly of the annular scraper of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 101. Roasting furnace; 2. Adsorption mechanism; 201. Mounting frame; 202. Bolt 1; 203. Connecting ring; 204. Rotating frame; 205. Dust adsorber; 206. Rotating column; 207. Driven wheel; 208. Fixing plate; 209. Fixing seat; 210. Motor; 211. Rotating shaft; 212. Driving wheel; 3. Removal mechanism; 301. Crown gear; 302. Pulley 1; 303. Belt; 304. Pulley 2; 305. Rotating rod; 306. Turntable; 307. Limiting block; 308. Offset shaft; 309. Moving groove; 310. Moving block; 311. Annular scraper; 312. Collection frame; 313. Bolt 2; 314. Slide plate; 315. Extension plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to the following: Figure 1 , Figure 2 and Figure 3 The calcining furnace for alumina production provided in this embodiment of the utility model includes:

[0031] A roasting furnace 101 and an adsorption mechanism 2 are disposed on the top of the roasting furnace 101. The adsorption mechanism 2 includes a mounting frame 201, a connecting ring 203 adapted to the roasting furnace 101 is rotatably connected inside the mounting frame 201, a rotating frame 204 is fixedly connected to the connecting ring 203, a plurality of dust adsorbers 205 are evenly arranged on the inner wall of the rotating frame 204, a rotating column 206 is fixedly connected to the outer surface of the rotating frame 204, and a driven wheel 207 is fixedly connected to the outer surface of the rotating column 206. A fixing plate 208 is fixedly connected to the top of the roasting furnace 101, a fixing seat 209 is fixedly connected to the outer surface of the fixing plate 208, a motor 210 is disposed on the fixing seat 209, a rotating shaft 211 is fixedly connected to the output shaft of the motor 210 through a coupling, and a driving wheel 212 is fixedly connected to the rotating shaft 211. The driving wheel 212 and the driven wheel 207 mesh with each other.

[0032] It is understood that in the calcining furnace for alumina production provided in this embodiment of the present invention, the dried material particles are fed or added from the top of the calcining furnace 101, and the dust generated therefrom can be adsorbed by the rotating dust adsorber 205, thereby preventing it from spreading or suspending in the air environment and suppressing its adverse effects on the environment.

[0033] It is obvious that when the motor 210 drives the rotating frame 204 to rotate, the multiple dust collectors 205 evenly distributed inside the rotating frame 204 are in the area with a high air velocity. As is well known, the pressure is low where the air velocity is high. Especially in the relatively narrow area inside the rotating frame 204, the diffused dust particles are very easy to move towards the dust collectors 205 under the action of pressure difference, and can then be quickly adsorbed by them to fully improve the adsorption and dust removal effect.

[0034] Please refer to it again. Figure 3 In some embodiments of this application, the outer surface of the mounting frame 201 is uniformly provided with a plurality of threaded bolts 202 for connecting the roasting furnace 101 to achieve a combination of disassembly and fixing with the roasting furnace 101.

[0035] Please refer to it again. Figure 3 In some embodiments of this application, the bottom of the rotating column 206 is rotatably connected to the top of the mounting frame 201, so as to further improve the rotational stability of the rotating column 206 when the rotating column 206 is rotated and installed through the mounting frame 201.

[0036] In some embodiments of this application, the dust collector 205 is a humidifying adsorption plate, so as to quickly adsorb dust by humidifying adsorption.

[0037] Alternatively, the dust collector 205 can also use an activated carbon adsorption plate for adsorption. In this case, a cover that can be opened and closed can be added to the top of the rotating column 206 to improve the adsorption and dust removal effect.

[0038] Considering that the actual working environment of the roasting furnace 101 has a lot of dust and is easily adsorbed on its outer surface, this utility model further proposes a dust removal design for the outer surface of the roasting furnace 101.

[0039] Please refer to the following: Figure 1 , Figure 4 , Figure 5 and Figure 6 In some embodiments of this application, the calcining furnace for alumina production further includes:

[0040] The removal mechanism 3 is disposed in close contact with the outer surface of the roasting furnace 101; the removal mechanism 3 includes an annular scraper 311 that can reciprocate along the axial direction of the roasting furnace 101.

[0041] According to an embodiment of this application, the annular scraper 311 is used to move up and down along the outer surface of the roasting furnace 101 and remove dust from its surface.

[0042] Please refer to it again. Figure 1 and Figure 4 In a further embodiment of this application, the removal mechanism 3 further includes a crown gear 301 meshing with the drive wheel 212. The crown gear 301 is rotatably mounted on the fixed plate 208. The crown gear 301 is connected to a pulley 302. The pulley 302 is connected to a pulley 304 via a belt 303. A rotating rod 305 is fixedly connected to the pulley 304. A turntable 306 is fixedly connected to the end of the rotating rod 305 away from the pulley 304. The turntable 306 is connected to the annular scraper 311.

[0043] Obviously, the removal mechanism 3 provided in this embodiment of the application can share the motor 210 with the adsorption mechanism 2 through the engagement of the crown gear 301 and the drive wheel 212, so as to realize the linkage between the feeding dust removal and the external wall dust removal of the roasting furnace 101. This not only helps to reduce the number of motors 210, but also reduces the complexity of the entire device to a certain extent.

[0044] Please refer to further details. Figure 4 and Figure 5 In a further embodiment of this application, the outer surface of the rotating rod 305 is rotatably connected to the limiting block 307, the limiting block 307 is fixed to the top of the extension plate 315, and the extension plate 315 is fixedly disposed in the roasting furnace 101.

[0045] Please refer to further details. Figure 4 , Figure 5 and Figure 6In a further embodiment of this application, a deflector 308 is fixedly connected to the side of the turntable 306 away from the pulley 304. The deflector 308 is slidably connected to the moving groove 309. A moving block 310 is fixedly connected to the side of the moving groove 309 away from the turntable 306. One end of the moving block 310 away from the moving groove 309 is fixedly connected to the annular scraper 311. A slide plate 314 is fixedly connected to the bottom of the moving block 310. The slide plate 314 is slidably inserted through the extension plate 315.

[0046] Please refer to it again. Figure 1 and Figure 4 In a further embodiment of this application, a collection frame 312 is connected to the outer surface of the roasting furnace 101. The collection frame 312 is threadedly connected to the roasting furnace 101 by bolts 313, and the collection frame 312 is located below the annular scraper 311 to collect the scraped dust particles.

[0047] In some embodiments of this application, the inner wall of the annular scraper 311 is provided with a heat-resistant scraping layer that fits the roasting furnace 101 to improve scraping efficiency.

[0048] Please refer to them again. Figures 1 to 6 The overall description of the embodiments of this utility model is as follows:

[0049] An adsorption mechanism 2 is provided on the top of the roasting furnace 101, and a removal mechanism 3 is provided on the outer surface of the roasting furnace 101. The adsorption mechanism 2 includes a mounting frame 201, and a bolt 202 is threadedly connected to the inner wall of the mounting frame 201. The bolt 202 is connected to the mounting frame 201 and can then be fixed to the mounting frame 201. A connecting ring 203 is rotatably connected to the inner wall of the mounting frame 201, and a rotating frame 204 is fixedly connected to the inner wall of the connecting ring 203. A dust collector 205 is fixedly connected to the inner wall of the rotating frame 204, and a rotating column 206 is fixedly connected to the outer surface of the rotating frame 204. The dust collector 205 is connected to the rotating frame 204, and the rotating frame 204 will drive the dust collector 205 to rotate. A driven wheel 207 is fixedly connected to the outer surface of the rotating column 206. A fixed plate 208 is fixedly connected to the outer surface of the roasting furnace 101. A fixed seat 209 is fixedly connected to the outer surface of the fixed plate 208. A motor 210 is fixedly connected to the inner wall of the fixed seat 209, thus fixing the position of the motor 210. The output shaft of the motor 210 is fixedly connected to a rotating shaft 211 via a coupling. A driving wheel 212 is fixedly connected to the outer surface of the rotating shaft 211. The mounting frame 201 is threadedly connected to the roasting furnace 101 via bolts 202. Four dust collectors 205 are provided. The bottom of the rotating column 206 is rotatably connected to the mounting frame 201, the rotating shaft 211 is rotatably connected to the fixed plate 208, and the driving wheel 212 meshes with the driven wheel 207, thereby driving the driven wheel 207 to rotate.

[0050] The removal mechanism 3 includes a crown gear 301 meshing with the drive wheel 212. The crown gear 301 is rotatably connected to the fixed plate 208. An extension plate 315 is fixedly connected to the roasting furnace 101. A pulley 302 is fixedly connected to the crown gear 301, connecting the extension plate 315 to the roasting furnace 101, thus fixing the position of the extension plate 315. A belt 303 is driven by the pulley 302. A second pulley 304 is driven by the end of the belt 303 away from the pulley 302. A rotating rod 305 is fixedly connected to the second pulley 304, connecting the rotating rod 305 to the second pulley 304, which can then drive the rotating rod 305 to rotate. A turntable 306 is fixedly connected to the end of the rotating rod 305 away from the pulley 304. A limiting block 307 is rotatably connected to the outer surface of the rotating rod 305. The bottom of the limiting block 307 is fixedly connected to the top of the extension plate 315. The extension plate 315 is connected through the limiting block 307, and then the position of the rotating rod 305 is restricted by the limiting block 317. An off-axis 308 is fixedly connected to the side of the turntable 306 away from the pulley 304. A moving groove 309 is slidably connected to the off-axis 308. A moving block 310 is fixedly connected to the side of the moving groove 309 away from the turntable 306. An annular scraper 311 is fixedly connected to the end of the moving block 310 away from the moving groove 309. The annular scraper 311 is connected through the moving block 310, and then the moving block 310 can drive the annular scraper 311 to move. The inner wall of the annular scraper 311 is slidably connected to the outer surface of the roasting furnace 101.

[0051] One specific application of this utility model embodiment is as follows:

[0052] When the equipment needs to be used, the motor 210 can be started. The motor 210 will cause the rotating shaft 211 to rotate, which in turn drives the drive wheel 212 to rotate. The drive wheel 212 then drives the driven wheel 207 to rotate, which in turn drives the rotating column 206 to rotate. The rotating column 206 then drives the rotating frame 204 to rotate, which in turn drives the dust collector 205 to rotate. This allows for dust adsorption during material feeding, reducing dust dispersion. When maintenance of the dust collector 205 is required, simply unscrew bolt 202 from the mounting frame 201 and the roasting furnace 101, then lift the rotating column 206 upwards to remove the dust collector 205 from the device for maintenance. Furthermore, while the rotating shaft 211 rotates, the crown gear 301 is also driven to rotate by the drive wheel 212. The crown gear 301 then drives the pulley 302 to rotate, which in turn drives the pulley 304 to rotate via the belt 303. The pulley 304 then drives the rotating rod 305 to rotate, which in turn drives the turntable 306 to rotate. The rotation of the turntable 306 causes the offset shaft 308 to perform a circular motion. At this time, the offset shaft 308 causes the moving groove 309 to reciprocate up and down on the surface of the turntable 306. The moving groove 309 then drives the annular scraper 311 to move across the surface of the roasting furnace 101 via the moving block 310 to scrape dust. At the same time, the moving block 310 also drives the slide plate 314 to slide within the extension plate 315. The scraped dust falls into the collection frame 312 and is collected.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A calcining furnace for alumina production, characterized in that, include: roaster; as well as An adsorption mechanism is disposed on the top of the roasting furnace. The adsorption mechanism includes a mounting frame, a connecting ring adapted to the roasting furnace is rotatably connected inside the mounting frame, a rotating frame is fixedly connected to the connecting ring, a plurality of dust adsorbers are evenly arranged on the inner wall of the rotating frame, a rotating column is fixedly connected to the outer surface of the rotating frame, and a driven wheel is fixedly connected to the outer surface of the rotating column. A fixing plate is fixedly connected to the top of the roasting furnace, a fixing seat is fixedly connected to the outer surface of the fixing plate, a motor is disposed on the fixing seat, the output shaft of the motor is fixedly connected to a rotating shaft through a coupling, and a driving wheel is fixedly connected to the rotating shaft; the driving wheel and the driven wheel mesh with each other.

2. The calcining furnace for alumina production according to claim 1, characterized in that, The outer surface of the mounting frame is uniformly provided with multiple threaded bolts for connecting to the roasting furnace.

3. The calcining furnace for alumina production according to claim 2, characterized in that, The bottom of the rotating column is rotatably connected to the top of the mounting frame.

4. The calcining furnace for alumina production according to any one of claims 1 to 3, characterized in that, The dust collector is a humidified adsorption plate.

5. The calcining furnace for alumina production according to any one of claims 1 to 3, characterized in that, The calcining furnace for alumina production also includes: The removal mechanism is configured to fit against the outer surface of the roasting furnace; the removal mechanism includes an annular scraper capable of reciprocating along the axial direction of the roasting furnace.

6. The calcining furnace for alumina production according to claim 5, characterized in that, The removal mechanism further includes a crown gear that meshes with the drive wheel. The crown gear is rotatably mounted on the fixed plate. The crown gear is connected to a pulley one. The pulley one is connected to a pulley two via a belt drive. A rotating rod is fixedly connected to the pulley two. A turntable is fixedly connected to the end of the rotating rod away from the pulley two. The turntable is drivenly connected to the annular scraper.

7. The calcining furnace for alumina production according to claim 6, characterized in that, The rotating rod is rotatably connected to the limiting block, the limiting block is fixed to the top of the extension plate, and the extension plate is fixedly installed in the roasting furnace.

8. The calcining furnace for alumina production according to claim 7, characterized in that, A deflector is fixedly connected to the side of the turntable away from the pulley two. The deflector is slidably connected to the moving groove. A moving block is fixedly connected to the side of the moving groove away from the turntable. The end of the moving block away from the moving groove is fixedly connected to the annular scraper. A sliding plate is fixedly connected to the bottom of the moving block. The sliding plate slides through the extension plate.

9. The calcining furnace for alumina production according to claim 8, characterized in that, A collection frame is connected to the outer surface of the roasting furnace. The collection frame is connected to the roasting furnace by bolts and threads, and the collection frame is located below the annular scraper.

10. The calcining furnace for alumina production according to any one of claims 6 to 9, characterized in that, The inner wall of the annular scraper is provided with a heat-resistant scraping layer that fits the outer surface of the roasting furnace.

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