Smelting furnace for white corundum production

Abstract

The utility model discloses a smelting furnace for white corundum production, which comprises a fixed seat and a furnace body, the fixed seat is rotatably connected with the furnace body, a hydraulic cylinder for driving the furnace body to rotate is arranged on the fixed seat and the furnace body, the side end of the fixed seat is fixedly connected with a lifting mechanism, the lifting mechanism is connected with a heat preservation cover, and the heat preservation cover is fixedly connected with the furnace body. The top end of the heat preservation cover is communicated with a first exhaust pipe, the other end of the first exhaust pipe is communicated with a heat insulation mechanism, and the other end of the heat insulation mechanism is communicated with a second exhaust pipe, so that a large amount of heat is effectively prevented from being dissipated and lost, energy consumption during white corundum production and smelting is reduced, smelting cost is reduced, and a large amount of heat is prevented from being dissipated into a workshop; the temperature in the workshop is prevented from being too high, the situation that the body health of workers is affected by the high temperature is avoided, people can conveniently add materials from one side of the furnace body, people are prevented from being hurt by the high temperature in the furnace body, and the use practicability of the furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of white fused alumina production, and more specifically, it relates to a smelting furnace for white fused alumina production. Background Technique

[0002] White fused alumina has the properties of white color, high hardness, slightly low toughness, high purity, excellent self-sharpening, strong grinding force, small calorific value, high efficiency, acid and alkali corrosion resistance, high temperature resistance, and good thermal stability. White fused alumina is a high-grade abrasive and grinding tool material, and is also a high-grade grinding and polishing material, etc. The grinding tools made of it are suitable for grinding hardened alloy steel, high carbon steel, high speed steel and various stainless steels. Its fine-grained powder is also widely applicable to special ceramics such as precision casting, steel refractory, chemical refractory, 95 electric porcelain, decorative porcelain, and daily-use porcelain, as well as high-tech industries such as military and electronics. The smelting of white fused alumina is completed by a tilting furnace. Its basic principle is: first, bauxite or alumina powder and other reducing agents and other formula materials are added into the tilting furnace body, and then current is sent through three electrodes to melt the furnace charge in the furnace body and react with the reducing agent, etc. After the reaction is completed, the gear mounted on the trunnion through mechanical transmission is used to rotate the trunnion, thereby driving the furnace body to tilt, and pouring the high-temperature melt in the furnace into the ladle to obtain white fused alumina products.

[0003] During the smelting process of the existing smelting furnace for white fused alumina production, the tops of most smelting furnaces are in an open state, which will cause a large amount of heat loss during the smelting of white fused alumina, increasing the energy consumption during the production and smelting of white fused alumina, and increasing the smelting cost. At the same time, after the smelting is completed, during the process of pouring the molten white fused alumina in the smelting furnace into the ladle, a large amount of heat will be dissipated. The large amount of heat dissipation is likely to cause the temperature inside the workshop to rise. The increase in the temperature inside the workshop affects the normal work of the staff, and at the same time, the staff staying in a high-temperature environment for a long time affects their physical health. In addition, when adding materials into the smelting furnace, people need to stand on the upper side of the smelting furnace for feeding. Since the temperature on the upper side of the smelting furnace is relatively high, it is not convenient for people to feed, reducing the practicality of its use. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the utility model provides a smelting furnace for white fused alumina production to solve the technical problems mentioned in the background technique.

[0005] To achieve the above object, the present utility model provides the following technical solution: A smelting furnace for white fused alumina production, comprising a fixed seat and a furnace body. The fixed seat is rotatably connected to the furnace body, and a hydraulic cylinder for driving the furnace body to rotate is installed on the fixed seat and the furnace body. A lifting mechanism is fixedly connected to the side end of the fixed seat, a heat preservation cover is connected to the lifting mechanism, a first air extraction pipe is communicated with the top end of the heat preservation cover, the other end of the first air extraction pipe is communicated with a heat insulation mechanism, and the other end of the heat insulation mechanism is communicated with a second air extraction pipe. A material box is placed at one end of the fixed seat away from the lifting mechanism, and a material conveying mechanism is connected to the side end of the fixed seat. The bottom end of the material conveying mechanism extends to the inner bottom side of the material box, effectively avoiding a large amount of heat dissipation and loss, reducing the energy consumption during the production and smelting of white fused alumina, reducing the smelting cost, preventing a large amount of heat from being dissipated into the interior of the workshop, avoiding the temperature in the workshop from being too high, and avoiding the high temperature from affecting the physical health of the staff. It is convenient for people to add materials from one side of the furnace body, avoiding damage to people caused by the high temperature inside the furnace body, and improving the practicality of its use.

[0006] The present utility model is further configured such that the lifting mechanism includes a fixed column. A square groove is provided at the top end of the fixed column, a square column is slidably arranged inside the square groove, a threaded groove is provided at the bottom end of the square column, a screw rod is threadedly connected inside the threaded groove, the side end of the square column is fixedly connected to the side end of the heat preservation cover, and a first motor is installed at the bottom end of the fixed column. The output end of the first motor is connected to the bottom end of the screw rod. The height of the heat preservation cover can be conveniently adjusted through the lifting mechanism.

[0007] The present utility model is further configured such that a limiting groove communicated with the inside of the square groove is provided at the side end of the fixed column, a limiting block is slidably arranged inside the limiting groove, and the side end of the limiting block is communicated with the bottom side of the side end of the square column, playing a role in limiting the square column.

[0008] The present utility model is further configured such that the heat insulation mechanism includes a heat insulation box. A sliding groove is provided at the top end of the heat insulation box, a heat insulation plate is hermetically slidably arranged inside the sliding groove, and a first electric cylinder is installed on the heat insulation plate. The bottom end of the first electric cylinder is connected to the top end of the heat insulation box, achieving a heat insulation effect.

[0009] The present utility model is further configured such that the material conveying mechanism includes a material conveying pipe. A rotating shaft is rotatably connected inside the material conveying pipe, a spiral blade is fixedly connected to the outside of the rotating shaft, a second motor is installed at the top end of the material conveying pipe, the output end of the second motor is connected to the top end of the rotating shaft, a discharge pipe is communicated with the upper side of the side end of the material conveying pipe, a connecting seat is fixedly connected to the side end of the fixed seat, the connecting seat is rotatably connected to the material conveying pipe, a first gear is fixedly connected to the outside of the material conveying pipe, a third motor is installed on the connecting seat, a second gear is fixed to the output end of the third motor, and the second gear meshes with the first gear, facilitating the conveyance of the materials required for white fused alumina production into the interior of the furnace body.

[0010] The present utility model is further configured such that a mounting plate is fixedly connected to the side end of the connecting seat, a second electric cylinder is mounted on the mounting plate, and a positioning seat adapted to the material conveying pipe is provided on the second electric cylinder, facilitating the fixation of the material conveying pipe.

[0011] The present utility model is further configured such that a gap is provided between the bottom end of the material conveying pipe and the inner bottom side of the material box, facilitating the sliding of the material inside the material box into the interior of the material conveying pipe.

[0012] The present utility model is further configured such that the height of the middle position at the inner bottom end of the material box is lower than the height of the outer side at the inner bottom end of the material box, facilitating the sliding of the material inside the material box below the material conveying pipe.

[0013] Compared with the prior art, the present utility model provides a smelting furnace for white fused alumina production, having the following beneficial effects:

[0014] 1. When smelting the materials required for white fused alumina production, the height of the heat preservation cover is adjusted through the lifting mechanism, and the heat preservation cover is covered on the furnace body. The heat preservation cover avoids a large amount of heat from being dissipated from the furnace opening of the furnace body. At the same time, the first exhaust pipe and the second exhaust pipe are separated by the heat insulation mechanism, avoiding the dissipation of heat through the first exhaust pipe and the second exhaust pipe. Thus, it effectively avoids the dissipation and loss of a large amount of heat, reduces the energy consumption during the smelting of white fused alumina production, and reduces the smelting cost.

[0015] 2. After the smelting is completed, the first exhaust pipe is communicated with the second exhaust pipe through the heat insulation mechanism, and the heat above the furnace body is extracted through the exhaust equipment externally connected to the second exhaust pipe, avoiding a large amount of heat from being dissipated into the interior of the workshop, avoiding the excessive temperature inside the workshop, and avoiding the high temperature from affecting the physical health of the staff.

[0016] 3. When adding the materials required for white fused alumina to the interior of the furnace body, people pour the materials onto the ground into the lower material box, and at the same time, the materials inside the material box are conveyed into the interior of the furnace body through the material conveying mechanism. Thus, it reduces the height at which people add the materials, and it is convenient for people to add the materials from one side of the furnace body, avoiding the high temperature inside the furnace body from causing damage to people, and improving the practicality of its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front structural schematic diagram of a smelting furnace for white fused alumina production in the present utility model;

[0018] Figure 2 is a rear partial sectional structural schematic diagram of a smelting furnace for white fused alumina production in the present utility model;

[0019] Figure 3 is a sectional structural schematic diagram of the lifting mechanism in the present utility model;

[0020] Figure 4 This is a schematic structural view of the connection between the material conveying mechanism and the material box in the present utility model;

[0021] Figure 5 This is a schematic structural view of the heat insulation mechanism in the present utility model.

[0022] In the figure: 1, fixed seat; 2, furnace body; 3, hydraulic cylinder; 4, heat preservation cover; 5, first air extraction pipe; 6, second air extraction pipe; 7, material box; 8, fixed column; 9, square groove; 10, square column; 11, threaded groove; 12, screw rod; 13, first motor; 14, limiting groove; 15, limiting block; 16, heat insulation box; 17, sliding groove; 18, heat insulation plate; 19, first electric cylinder; 20, material conveying pipe; 21, rotating shaft; 22, spiral blade; 23, second motor; 24, discharge pipe; 25, connecting seat; 26, first gear; 27, third motor; 28, second gear; 29, mounting plate; 30, second electric cylinder; 31, positioning seat. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0025] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally left and right as shown in the drawings; "inside, outside" refer to inside and outside the contours of the respective components, but the above orientation terms are not used to limit the present utility model.

[0026] Please refer to Figures 1-5 , a smelting furnace for the production of white fused alumina, comprising a fixed seat 1 and a furnace body 2. The fixed seat 1 is rotatably connected to the furnace body 2. A hydraulic cylinder 3 for driving the furnace body 2 to rotate is installed on the fixed seat 1 and the furnace body 2. A lifting mechanism is fixedly connected to the side end of the fixed seat 1. A heat preservation cover 4 is connected to the lifting mechanism. The top end of the heat preservation cover 4 is communicated with a first air extraction pipe 5. The other end of the first air extraction pipe 5 is communicated with a heat insulation mechanism. The other end of the heat insulation mechanism is communicated with a second air extraction pipe 6. A material box 7 is placed at one end of the fixed seat 1 away from the lifting mechanism. A material conveying mechanism is connected to the side end of the fixed seat 1. The bottom end of the material conveying mechanism extends to the inner bottom side of the material box 7.

[0027] In this embodiment, when smelting the materials required for the production of white fused alumina, the height of the heat preservation cover 4 is adjusted by a lifting mechanism, and the heat preservation cover 4 is covered on the furnace body 2. The heat preservation cover 4 prevents a large amount of heat from escaping from the furnace mouth of the furnace body 2. At the same time, the first exhaust pipe 5 and the second exhaust pipe 6 are separated by a heat insulation mechanism, preventing heat from escaping through the first exhaust pipe 5 and the second exhaust pipe 6. Thus, it effectively avoids the loss of a large amount of heat, reduces the energy consumption during the production and smelting of white fused alumina, and reduces the smelting cost. When the smelting is completed, the first exhaust pipe 5 is connected to the second exhaust pipe 6 through the heat insulation mechanism, and the heat around the furnace body 2 is drawn away by the exhaust equipment externally connected to the second exhaust pipe 6, preventing a large amount of heat from being dissipated into the interior of the workshop, avoiding the excessive temperature inside the workshop, and avoiding the high temperature from affecting the physical health of the staff. When adding the materials required for white fused alumina into the interior of the furnace body 2, people pour the materials into the lower material box 7 on the ground, and at the same time, the materials inside the material box 7 are conveyed into the interior of the furnace body 2 through a feeding mechanism. Thus, it reduces the height at which people add the materials, making it convenient for people to add materials from one side of the furnace body 2, avoiding the high temperature inside the furnace body 2 from causing damage to people, and improving the practicality of its use.

[0028] Please refer to Figure 1 and Figure 3 , the lifting mechanism includes a fixed column 8. A square groove 9 is provided at the top end of the fixed column 8. A square column 10 is slidably arranged inside the square groove 9. A threaded groove 11 is provided at the bottom end of the square column 10. A screw rod 12 is threadedly connected inside the threaded groove 11. The side end of the square column 10 is fixedly connected to the side end of the heat preservation cover 4. A first motor 13 is installed at the bottom end of the fixed column 8. The output end of the first motor 13 is connected to the bottom end of the screw rod 12. A limiting groove 14 communicating with the inside of the square groove 9 is provided at the side end of the fixed column 8. A limiting block 15 is slidably arranged inside the limiting groove 14. The side end of the limiting block 15 is communicated with the bottom side of the side end of the square column 10, playing a role in limiting the square column 10.

[0029] In this embodiment, the first motor 13 drives the screw rod 12 to rotate. The rotation of the screw rod 12 causes the square column 10 to slide inside the square groove 9. The square column 10 drives the heat preservation cover 4 to move up and down, adjusting the distance between the heat preservation cover 4 and the furnace body 2.

[0030] Please refer to Figure 5 , the heat insulation mechanism includes a heat insulation box 16. A sliding groove 17 is provided at the top end of the heat insulation box 16. A heat insulation plate 18 is hermetically slidably arranged inside the sliding groove 17. A first electric cylinder 19 is installed on the heat insulation plate 18. The bottom end of the first electric cylinder 19 is connected to the top end of the heat insulation box 16.

[0031] In this embodiment, the height of the heat insulation plate 18 is adjusted by the first electric cylinder 19. When the heat insulation plate 18 moves into the interior of the heat insulation box 16, the first suction pipe 5 and the second suction pipe 6 are separated. During the smelting process, heat inside the furnace body 2 is prevented from dissipating through the first suction pipe 5 and the second suction pipe 6. When the heat insulation plate 18 moves to the upper side, the first suction pipe 5 is communicated with the second suction pipe 6, and the heat around the furnace body 2 is drawn away by the suction device externally connected to the second suction pipe 6.

[0032] Please refer to Figure 2 and Figure 4 , the feeding mechanism includes a feeding pipe 20. A rotating shaft 21 is rotatably connected inside the feeding pipe 20. A spiral blade 22 is fixedly connected to the outside of the rotating shaft 21. A second motor 23 is installed at the top end of the feeding pipe 20. The output end of the second motor 23 is connected to the top end of the rotating shaft 21. A discharge pipe 24 is communicated with the upper side of the side end of the feeding pipe 20. A connecting seat 25 is fixedly connected to the side end of the fixed seat 1. The connecting seat 25 is rotatably connected to the feeding pipe 20. A first gear 26 is fixedly connected to the outside of the feeding pipe 20. A third motor 27 is installed on the connecting seat 25. A second gear 28 is fixed to the output end of the third motor 27. The second gear 28 meshes with the first gear 26. A mounting plate 29 is fixedly connected to the side end of the connecting seat 25. A second electric cylinder 30 is installed on the mounting plate 29. A positioning seat 31 adapted to the feeding pipe 20 is provided on the second electric cylinder 30. A gap is provided between the bottom end of the feeding pipe 20 and the inner bottom side of the material box 7, facilitating the material inside the material box 7 to slide into the interior of the feeding pipe 20. The height of the middle position at the bottom end inside the material box 7 is lower than the height of the outer side at the bottom end inside the material box 7, facilitating the material inside the material box 7 to slide below the feeding pipe 20.

[0033] In this embodiment, the third motor 27 drives the second gear 28 to rotate. The second gear 28 drives the first gear 26 and the feeding pipe 20 to rotate, rotating the discharge pipe 24 to the upper side of the furnace body 2. Then, the second electric cylinder 30 is used to push the positioning seat 31 to move, and the side end of the positioning seat 31 is made to abut against the side end of the feeding pipe 20. The feeding pipe 20 is fixed by the positioning seat 31. Then, the material is added into the interior of the material box 7. The material inside the material box 7 slides through the gap between the feeding pipes 20 to below the feeding pipe 20 and contacts the spiral blade 22. The second motor 23 drives the rotating shaft 21 and the spiral blade 22 to rotate. The rotation of the spiral blade 22 conveys the material to the upper side inside the feeding pipe 20. The material inside the feeding pipe 20 falls into the interior of the furnace body 2 through the discharge pipe 24. When the material is conveyed to the furnace body 2, the discharge pipe 24 is rotated to a side away from the furnace body 2.

[0034] In summary, when the overall equipment is in use:

[0035] When adding materials to the interior of the furnace body 2, the third motor 27 drives the second gear 28 to rotate. The second gear 28 drives the first gear 26 and the material conveying pipe 20 to rotate, rotating the discharge pipe 24 to the upper side of the furnace body 2. Then, the second electric cylinder 30 is used to push the positioning seat 31 to move, and the side end of the positioning seat 31 is abutted against the side end of the material conveying pipe 20. The material conveying pipe 20 is fixed by the positioning seat 31. Then, the materials are added into the interior of the material box 7. The materials inside the material box 7 slide down through the gaps between the material conveying pipes 20 and contact the spiral blades 22. The second motor 23 drives the rotating shaft 21 and the spiral blades 22 to rotate. The rotation of the spiral blades 22 conveys the materials to the upper side inside the material conveying pipe 20. The materials inside the material conveying pipe 20 fall into the interior of the furnace body 2 through the discharge pipe 24. When the materials are conveyed to the furnace body 2, the discharge pipe 24 is rotated to the side away from the furnace body 2;

[0036] When smelting is required, the first motor 13 drives the screw rod 12 to rotate clockwise. The clockwise rotation of the screw rod 12 causes the square column 10 and the heat preservation cover 4 to move downward, and the heat preservation cover 4 contacts the furnace body 2. Then, the materials produced by fused alumina are smelted;

[0037] After the smelting is completed, the first motor 13 drives the screw rod 12 to rotate counterclockwise. The counterclockwise rotation of the first screw rod 12 causes the square column 10 and the heat preservation cover 4 to move upward and move to the uppermost side. At this time, the furnace body 2 can rotate normally. At the same time, the first electric cylinder 19 is used to push the heat insulation plate 18 to the uppermost side. Then, the hydraulic cylinder 3 drives the furnace body 2 to rotate, so that the melt inside the furnace body 2 is poured into the ladle. At the same time, the heat extraction device externally connected to the second air extraction pipe 6 extracts the heat around the furnace body 2.

[0038] In all the solutions mentioned above, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smelting furnace for producing white corundum, comprising a fixed seat (1) and a furnace body (2), wherein the fixed seat (1) is rotatably connected to the furnace body (2), and a hydraulic cylinder (3) for driving the furnace body (2) to rotate is installed on the fixed seat (1) and the furnace body (2), wherein: The side end of the fixed seat (1) is fixedly connected to a lifting mechanism, the lifting mechanism is connected to a heat insulation cover (4), the top end of the heat insulation cover (4) is connected to a first exhaust pipe (5), the other end of the first exhaust pipe (5) is connected to a heat insulation mechanism, and the other end of the heat insulation mechanism is connected to a second exhaust pipe (6), a material box (7) is placed at one end of the fixed seat (1) away from the lifting mechanism, the side end of the fixed seat (1) is connected to a feeding mechanism, and the bottom end of the feeding mechanism extends to the inner bottom side of the material box (7).

2. A smelting furnace for producing white corundum according to claim 1, characterized in that: The lifting mechanism comprises a fixed column (8), a square groove (9) is arranged at the top end of the fixed column (8), a square column (10) is slidably arranged inside the square groove (9), a threaded groove (11) is arranged at the bottom end of the square column (10), a screw rod (12) is connected to the internal thread of the threaded groove (11), a side end of the square column (10) is fixedly connected to the side end of the heat preservation cover (4), a first motor (13) is installed at the bottom end of the fixed column (8), and an output end of the first motor (13) is connected to the bottom end of the screw rod (12).

3. A smelting furnace for producing white corundum according to claim 2, characterized in that: The side end of the fixed column (8) is provided with a limiting groove (14) which is in communication with the inside of the square groove (9), and a limiting block (15) is slidably provided inside the limiting groove (14), and the side end of the limiting block (15) is in communication with the bottom side of the side end of the square column (10).

4. A smelting furnace for producing white corundum according to claim 1, characterized in that: The thermal insulation mechanism comprises a thermal insulation box (16), a slide groove (17) being provided at the top end of the thermal insulation box (16), a thermal insulation plate (18) being provided in a sealing and sliding manner inside the slide groove (17), a first electric cylinder (19) being mounted on the thermal insulation plate (18), and a bottom end of the first electric cylinder (19) being connected to the top end of the thermal insulation box (16).

5. A smelting furnace for producing white corundum according to claim 1, characterized in that: The feeding mechanism comprises a feeding pipe (20), the inside of the feeding pipe (20) is rotatably connected to a rotating shaft (21), the outside of the rotating shaft (21) is fixedly connected to a spiral blade (22), a second motor (23) is mounted on the top of the feeding pipe (20), the output end of the second motor (23) is connected to the top of the rotating shaft (21), a discharge pipe (24) is connected to the upper side of the side end of the feeding pipe (20), a connecting seat (25) is fixedly connected to the side end of the fixed seat (1), the connecting seat (25) is rotatably connected to the feeding pipe (20), a first gear (26) is fixedly connected to the outside of the feeding pipe (20), a third motor (27) is mounted on the connecting seat (25), a second gear (28) is fixed to the output end of the third motor (27), and the second gear (28) is meshed with the first gear (26).

6. A smelting furnace for producing white corundum according to claim 5, characterized in that: A mounting plate (29) is fixedly connected to the side end of the connecting seat (25), a second electric cylinder (30) is mounted on the mounting plate (29), and a positioning seat (31) adapted to the material conveying pipe (20) is provided on the second electric cylinder (30).

7. A smelting furnace for producing white corundum according to claim 5, characterized in that: A gap is provided between the bottom end of the material conveying pipe (20) and the bottom side of the interior of the material box (7).

8. The smelting furnace for producing white corundum according to claim 1, characterized in that: The height of the middle position of the bottom end of the material box (7) is lower than the height of the outer side of the bottom end of the material box (7).

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