Uniform heating equipment for bauxite treatment

Abstract

The utility model relates to bauxite heating technical field, the utility model provides a kind of uniform heating equipment for bauxite treatment, including base, still including support frame, electric kiln, feeding mechanism, first rotating mechanism and stirring mechanism, two support frames are fixedly arranged on base, support frame is penetrated and is provided with support mouth, bearing is installed in support mouth, electric kiln is arranged between two support frames, the inner wall of electric kiln is inlaid and is provided with multiple heating plate, the side wall of electric kiln is installed with battery, battery and heating plate are electrically connected, the both ends of electric kiln are fixed and are communicated and are provided with support tube, support tube is inserted into bearing and is rotatably connected with the inner wall of bearing, the side wall of electric kiln is provided with discharge port, the side wall of electric kiln is located on the side of discharge port and is installed with cover plate by bolt, by above technical scheme, for solving the technical problem that bauxite in prior art is easily affected product quality due to uneven heating in heating process.

Description

Technical Field

[0001] This utility model relates to the field of bauxite heating technology, specifically to a uniform heating device for bauxite processing. Background Technology

[0002] Bauxite is a natural mineral raw material rich in alumina, with alumina as its core component. It often contains impurities such as iron oxide and silicon dioxide. It is a key raw material in the fields of refractory materials, abrasives, ceramics and aluminum industry. In the bauxite processing, roasting is generally required to achieve stable crystal transformation, dehydration and impurity removal and activity control. These indicators directly affect the performance of downstream products.

[0003] The mainstream equipment for bauxite calcination is the rotary kiln. The kiln body is placed at an incline, and the raw material is fed in from the upper part. Due to the inclination and rotation of the kiln body, the material gradually moves from the upper part to the lower part. Fuel is introduced into the kiln from the kiln head for combustion, and the generated gas flows to the upper part to exchange heat with the material. The material gradually heats up during the movement and goes through processes such as drying, preheating, decomposition, and calcination before being discharged from the kiln head.

[0004] However, during the heating process, there is a natural temperature gradient in the kiln body from the feed end to the discharge end. The front end (feed side) is mainly for preheating and dehydration, and the temperature is relatively low. The rear end (discharge side) has the highest calcination temperature. If the temperature is not properly controlled, a "low temperature zone" or "overheated zone" may easily appear in the middle section, which will affect the heating uniformity of bauxite and the product quality. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a uniform heating device for bauxite processing, which solves the technical problem that uneven heating of bauxite during the heating process can easily affect product quality.

[0006] According to one aspect, at least one embodiment of the present invention provides a uniform heating device for bauxite processing, including a base, a support frame, an electric kiln, a feeding mechanism, a first rotating mechanism, and a stirring mechanism. Two support frames are fixedly mounted on the base, each support frame having a through-hole. A bearing is installed within the through-hole. The electric kiln is positioned between the two support frames. Multiple heating plates are embedded in the inner wall of the electric kiln. A battery is installed on the side wall of the electric kiln and electrically connected to the heating plates. Support pipes are fixedly and interconnected at both ends of the electric kiln. The support pipes extend into the bearings and are rotatably connected to the inner wall of the bearings. A discharge port is opened on the side wall of the electric kiln. A cover plate is bolted to one side of the discharge port on the side wall of the electric kiln. The feeding mechanism is mounted on the support frame for adding bauxite into the electric kiln. The first rotating mechanism is positioned between the support pipe and the support frame for driving the support pipe to rotate. The stirring mechanism is mounted on the support frame for stirring the bauxite within the electric kiln.

[0007] Preferably, the feeding mechanism includes a support platform and a feeding bin. The support platform is fixedly mounted on one of the support frames. A screw feeder is provided on the top side wall of the support platform. The screw feeder extends into the support tube and is rotatably connected to the support tube. A sealing ring is fixedly provided on the inner wall of the support tube. The sealing ring contacts the outer wall of the screw feeder. The feeding bin is connected to the input end of the screw feeder. A feeding control valve is installed in the feeding bin.

[0008] Furthermore, the first rotating mechanism includes a first pulley, a second pulley, and a first motor. The first pulley is coaxial and fixedly mounted on the support tube, the second pulley is rotatably mounted on one of the support frames, a belt is provided for transmission between the first pulley and the second pulley, and the first motor is mounted on one of the support frames, with the output end of the first motor fixedly connected to the second pulley.

[0009] Furthermore, the stirring mechanism includes a support cover, a support plate, a stirring rod, a reciprocating movement mechanism, and a second rotating mechanism. The support cover is fixedly mounted on the support frame on the side away from the screw feeder. The support plate is slidably mounted inside the support cover. A stirring column is rotatably mounted on the support plate. The stirring column extends through the support tube into the electric kiln and contacts the sealing ring. Multiple stirring rods are fixedly mounted on the side wall of the stirring column. The reciprocating movement mechanism is located between the support cover and the support plate and is used to drive the support plate to reciprocate within the support cover. The second rotating mechanism is located on the support plate and is used to drive the stirring column to rotate.

[0010] Furthermore, the reciprocating movement mechanism includes an adjustment groove, an adjustment disc, and a second motor. The adjustment groove is formed on the side wall of the support cover away from the support frame. The adjustment disc is rotatably disposed in the adjustment groove. A rotating shaft is rotatably disposed at the eccentric position of the adjustment disc. An adjustment rod is fixedly disposed on the side wall of the rotating shaft. The end of the adjustment rod away from the rotating shaft is hinged to the support plate. The second motor is mounted on the support cover, and the output end of the second motor is fixedly connected to the adjustment disc.

[0011] Based on the above scheme, the second rotating mechanism includes a first gear ring, a first gear, and a driving mechanism. The first gear ring is fixedly disposed on the outer wall of the stirring column, the first gear is rotatably disposed on the support plate, the first gear meshes with the first gear ring, and the driving mechanism is disposed on the support cover for driving the first gear to rotate.

[0012] Based on the above scheme, the driving mechanism includes a first driving port, a second driving port, a driving prism, and a third motor. The driving port is opened on the support plate, the second driving port is opened on the first gear, the driving prism is rotatably disposed inside the support cover, the driving prism passes through the first driving port and the second driving port, the driving prism is connected to the side wall of the second driving port with a clearance fit, and the third motor is mounted on the support cover, the output end of the third motor is fixedly connected to the driving prism.

[0013] Based on the above scheme, reinforcing ribs are fixedly installed on the support frame.

[0014] The beneficial effects of the embodiments of this utility model are as follows: 1. In this utility model, by setting up the first rotating mechanism, the operation of the first motor can drive the second pulley to rotate, and at the same time, the belt and the first pulley drive the support pipe and the electric kiln to rotate, thereby driving the alumina inside the electric kiln to stir and turn, thereby improving the heating uniformity of the alumina. 2. In this utility model, by setting up a stirring mechanism, the operation of the reciprocating moving mechanism can drive the stirring column and stirring rod to reciprocate horizontally, and at the same time, the operation of the second rotating mechanism can drive the stirring column to rotate, thereby stirring the bauxite through the stirring rod, which can further improve the heating uniformity of the bauxite. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a uniform heating device for bauxite treatment in one embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional structural diagram of the support frame in the embodiment; Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the stirring mechanism in the embodiment; Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A; Figure 5 for Figure 1 The embodiment is shown in the cross-sectional view of the support cover.

[0017] In the diagram: 1. Base; 2. Support frame; 3. Bearing; 4. Electric kiln; 5. Battery; 6. Support pipe; 7. Cover plate; 8. Support platform; 9. Screw feeder; 10. Feed hopper; 11. First pulley; 12. Second pulley; 13. First motor; 14. Support cover; 15. Support plate; 16. Stirring column; 17. Adjusting trough; 18. Adjusting disc; 19. Rotating shaft; 20. Adjusting rod; 21. Second motor; 22. First gear ring; 23. First gear; 24. First drive port; 25. Second drive port; 26. Drive prism; 27. Third motor. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-5As shown, this invention illustrates a uniform heating device for bauxite processing according to one embodiment of the present invention. The device includes a base 1, support frames 2, an electric kiln 4, a feeding mechanism, a first rotating mechanism, and a stirring mechanism. Two support frames 2 are fixedly mounted on the base 1, each with a through-hole. A bearing 3 is installed inside the through-hole. The electric kiln 4 is positioned between the two support frames 2. Multiple heating plates are embedded in the inner wall of the electric kiln 4. A battery 5 is installed on the side wall of the electric kiln 4 and electrically connected to the heating plates. Both ends of the electric kiln 4 are fixedly mounted... A support pipe 6 is fixedly and continuously installed in the electric kiln 4. The support pipe 6 extends into the bearing 3 and is rotatably connected to the inner wall of the bearing 3. A discharge port is opened on the side wall of the electric kiln 4. A cover plate 7 is installed on the side of the discharge port of the electric kiln 4 by bolts. A feeding mechanism is set on the support frame 2 for adding bauxite into the electric kiln 4. A first rotating mechanism is set between the support pipe 6 and the support frame 2 for driving the support pipe 6 to rotate. A stirring mechanism is set on the support frame 2 for stirring the bauxite in the electric kiln 4. Reinforcing ribs are fixedly installed on the support frame 2.

[0024] Reference Figure 1 and Figure 2 The feeding mechanism includes a support platform 8 and a feeding bin 10. The support platform 8 is fixedly mounted on one of the support frames 2. A screw feeder 9 is mounted on the top side wall of the support platform 8. The screw feeder 9 extends into the support pipe 6 and is rotatably connected to the support pipe 6. A sealing ring is fixedly mounted on the inner wall of the support pipe 6. The sealing ring contacts the outer wall of the screw feeder 9. The feeding bin 10 is connected to the input end of the screw feeder 9. A feeding control valve is installed in the feeding bin 10. Specifically, after bauxite is added to the feeding bin 10, bauxite can be added to the electric kiln 4 through the operation of the screw feeder 9.

[0025] Reference Figure 2 The first rotating mechanism includes a first pulley 11, a second pulley 12, and a first motor 13. The first pulley 11 is coaxial and fixedly mounted on the support tube 6. The second pulley 12 is rotatably mounted on one of the support frames 2. A belt is provided between the first pulley 11 and the second pulley 12 for transmission. The first motor 13 is mounted on one of the support frames 2. The output end of the first motor 13 is fixedly connected to the second pulley 12. Specifically, the operation of the first motor 13 can drive the second pulley 12 to rotate. At the same time, the belt and the first pulley 11 drive the support tube 6 and the electric kiln 4 to rotate. In turn, the rotation of the electric kiln 4 drives the agitation of the bauxite inside the electric kiln 4, thereby improving the heating uniformity of the bauxite.

[0026] Reference Figures 3-5The stirring mechanism includes a support cover 14, a support plate 15, stirring rods, a reciprocating moving mechanism, and a second rotating mechanism. The support cover 14 is fixedly mounted on a support frame 2 on the side away from the screw feeder 9. The support plate 15 is slidably mounted inside the support cover 14. A stirring column 16 is rotatably mounted on the support plate 15. The stirring column 16 extends through the support pipe 6 into the electric kiln 4 and contacts the sealing ring. Multiple stirring rods are fixedly mounted on the side wall of the stirring column 16. The reciprocating moving mechanism is located between the support cover 14 and the support plate 15 and is used to drive the support plate 15 to reciprocate within the support cover 14. The second rotating mechanism is located on the support plate 15 and is used to drive the stirring column 16 to rotate. The reciprocating moving mechanism includes an adjusting groove. 17. Adjusting disc 18 and second motor 21. The adjusting groove 17 is opened on the side wall of the support cover 14 away from the support frame 2. The adjusting disc 18 is rotatably set in the adjusting groove 17. The eccentric position of the adjusting disc 18 is rotatably set with a rotating shaft 19. The side wall of the rotating shaft 19 is fixedly set with an adjusting rod 20. The end of the adjusting rod 20 away from the rotating shaft 19 is hinged to the support plate 15. The second motor 21 is installed on the support cover 14. The output end of the second motor 21 is fixedly connected to the adjusting disc 18. Specifically, the operation of the second motor 21 can drive the adjusting disc 18 to rotate. The rotation of the adjusting disc 18 can push the stirring plate, stirring column 16 and stirring rod to move back and forth in the horizontal direction through the rotating shaft 19 and the adjusting rod 20.

[0027] Reference Figures 3-5 The second rotating mechanism includes a first gear ring 22, a first gear 23, and a driving mechanism. The first gear ring 22 is fixedly mounted on the outer wall of the stirring column 16. The first gear 23 is rotatably mounted on the support plate 15 and meshes with the first gear ring 22. The driving mechanism is mounted on the support cover 14 and is used to drive the first gear 23 to rotate. The driving mechanism includes a first driving port 24, a second driving port 25, a driving prism 26, and a third motor 27. The driving port is located on the support plate 15, the second driving port 25 is located on the first gear 23, and the driving prism 26 is rotatably mounted inside the support cover 14. Prism 26 penetrates the first drive port 24 and the second drive port 25. The drive prism 26 and the side wall of the second drive port 25 are connected by a clearance fit. The third motor 27 is mounted on the support cover 14. The output end of the third motor 27 is fixedly connected to the drive prism 26. Specifically, the operation of the third motor 27 can drive the drive prism 26 to rotate. At the same time, through the clearance fit between the drive prism 26 and the side wall of the second drive port 25, the first gear 23 is driven to rotate. Simultaneously, through the meshing of the first gear 23 and the first gear ring 22, the stirring column 16 is driven to rotate, thereby facilitating the stirring of bauxite by the stirring rod.

[0028] In this embodiment, during use, after adding bauxite to the feed hopper 10, the operator can add the bauxite to the electric kiln 4 via the screw feeder 9 and then close the feed control valve. The operator then controls the first motor 13 to operate, which drives the second pulley 12 to rotate. Simultaneously, the belt and the first pulley 11 drive the support pipe 6 and the electric kiln 4 to rotate, thereby causing the bauxite inside the electric kiln 4 to be agitated, thus improving the heating uniformity of the bauxite. At the same time, the operator controls the second motor 21 and the third motor 27 to operate. The operation of the second motor 21 can drive the support pipe 6 and the electric kiln 4 to rotate. The rotating adjustment plate 18 rotates, and the rotation of the adjustment plate 18 can drive the stirring plate, stirring column 16 and stirring rod to move horizontally back and forth through the rotating shaft 19 and the adjustment rod 20. The operation of the third motor 27 can drive the driving prism 26 to rotate. At the same time, the gap between the driving prism 26 and the side wall of the second driving port 25 drives the first gear 23 to rotate. Simultaneously, the meshing of the first gear 23 and the first gear ring 22 drives the stirring column 16 to rotate, thereby facilitating the stirring of bauxite by the stirring rod, thereby further improving the heating uniformity of bauxite. After heating is completed, the cover plate 7 can be opened to discharge the bauxite.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A uniform heating device for bauxite processing, comprising a base (1), characterized in that, Also includes: Support frame (2), two support frames (2) are fixedly installed on the base (1), and a support opening is provided through the support frame (2), and a bearing (3) is installed in the support opening. An electric kiln (4) is set between two support frames (2). Multiple heating plates are embedded in the inner wall of the electric kiln (4). A storage battery (5) is installed on the side wall of the electric kiln (4). The storage battery (5) is electrically connected to the heating plates. Both ends of the electric kiln (4) are fixed and connected with support pipes (6). The support pipes (6) extend into the bearing (3) and are rotatably connected to the inner wall of the bearing (3). A discharge port is opened on the side wall of the electric kiln (4). A cover plate (7) is installed on the side of the discharge port by bolts. The feeding mechanism is mounted on the support frame (2) and is used to add bauxite into the electric kiln (4); A first rotating mechanism is disposed between the support tube (6) and the support frame (2) for driving the support tube (6) to rotate; A stirring mechanism is provided on the support frame (2) for stirring the bauxite in the electric kiln (4).

2. The uniform heating device for bauxite processing according to claim 1, characterized in that, The feeding mechanism includes: A support platform (8) is fixedly mounted on one of the support frames (2). A screw feeder (9) is provided on the top side wall of the support platform (8). The screw feeder (9) extends into the support tube (6) and is rotatably connected to the support tube (6). A sealing ring is fixedly provided on the inner wall of the support tube (6). The sealing ring is in contact with the outer wall of the screw feeder (9). Feed bin (10), which is connected to the input end of the screw feeder (9), and a feed control valve is installed in the feed bin (10).

3. The uniform heating device for bauxite processing according to claim 2, characterized in that, The first rotating mechanism includes: The first pulley (11) is coaxial and fixedly mounted on the support tube (6); The second pulley (12) is rotatably mounted on one of the support frames (2), and a belt is provided between the first pulley (11) and the second pulley (12) for transmission. A first motor (13) is mounted on one of the support frames (2), and the output end of the first motor (13) is fixedly connected to the second pulley (12).

4. The uniform heating device for bauxite processing according to claim 3, characterized in that, The stirring mechanism includes: Support cover (14), the support cover (14) is fixedly mounted on the support frame (2) on the side away from the screw feeder (9); A support plate (15) is slidably disposed inside the support cover (14). A stirring column (16) is rotatably disposed on the support plate (15). The stirring column (16) extends through the support tube (6) into the electric kiln (4). The stirring column (16) contacts the sealing ring. Stirring rods, multiple stirring rods are fixedly provided on the side wall of the stirring column (16); A reciprocating movement mechanism is disposed between the support cover (14) and the support plate (15) for driving the support plate (15) to reciprocate within the support cover (14); The second rotating mechanism is disposed on the support plate (15) and is used to drive the stirring column (16) to rotate.

5. The uniform heating device for bauxite processing according to claim 4, characterized in that, The reciprocating movement mechanism includes: Adjustment groove (17), the adjustment groove (17) is formed on the side wall of the support cover (14) away from the support frame (2); An adjusting disc (18) is rotatably disposed in the adjusting groove (17). A rotating shaft (19) is rotatably disposed at the eccentric position of the adjusting disc (18). An adjusting rod (20) is fixedly disposed on the side wall of the rotating shaft (19). The end of the adjusting rod (20) away from the rotating shaft (19) is hinged to the support plate (15). The second motor (21) is mounted on the support cover (14), and the output end of the second motor (21) is fixedly connected to the adjustment plate (18).

6. The uniform heating device for bauxite processing according to claim 5, characterized in that, The second rotating mechanism includes: The first toothed ring (22) is fixedly disposed on the outer wall of the stirring column (16); The first gear (23) is rotatably mounted on the support plate (15) and meshes with the first gear ring (22); A drive mechanism is provided on the support cover (14) for driving the first gear (23) to rotate.

7. The uniform heating device for bauxite processing according to claim 6, characterized in that, The drive mechanism includes: The first drive port (24) is located on the support plate (15); The second drive port (25) is located on the first gear (23); A driving prism (26) is rotatably disposed inside the support cover (14). The driving prism (26) passes through the first driving port (24) and the second driving port (25). The driving prism (26) and the side wall of the second driving port (25) are connected by a clearance fit. The third motor (27) is mounted on the support cover (14), and the output end of the third motor (27) is fixedly connected to the drive prism (26).

8. The uniform heating device for bauxite processing according to claim 7, characterized in that, The support frame (2) is fixedly provided with reinforcing ribs.

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