Energy-saving heat accumulating type burner device for aluminum smelting

Abstract

The invention relates to the technical field of heat storage type combustors, in particular to an aluminum smelting energy-saving heat storage type combustor device which comprises a machine body internally provided with a plurality of heat storage chambers, sealing doors corresponding to the heat storage chambers are arranged on the side face of the machine body, and heat storage body installation boxes located in the heat storage chambers are installed in the machine body in a sliding mode. A heat accumulator is installed in the heat accumulator installation box, and a grating movably abutting against the heat accumulator is movably installed on the bottom face of the heat accumulator installation box. In the process of pulling the sealing door to horizontally move, the first control part drives the sealing plate to horizontally move along with the sealing door, so that the sealing plate completely seals the holes in the grating, the bottom surface of the pulverized heat accumulator is in a sealed state, heat accumulator powder is effectively prevented from leaking from the holes in the grating, and the working environment is kept clean and tidy when the heat accumulator is replaced.

Description

Technical Field

[0001] This invention relates to the field of regenerative burner technology, and more particularly to an energy-saving regenerative burner device for aluminum smelting. Background Technology

[0002] The aluminum smelting energy-saving regenerative burner is a combustion system that uses ceramic regenerators to recover waste heat from high-temperature flue gas and use it to efficiently preheat combustion air. Through the ultimate recovery of waste heat, the system can reinvest a large amount of heat that was originally carried away by the exhaust gas into the smelting process, thereby significantly reducing the overall energy consumption of aluminum smelting.

[0003] In the operation and maintenance of existing regenerative burners, the regular replacement of the regenerator is a necessary task. The regenerator is prone to pulverization when it is in a high-temperature circulating environment for a long time. During the replacement process, because there is a perforated grid at the bottom of the regenerator, the powder generated when moving the regenerator can easily pass through the grid and remain at the bottom of the regenerator chamber. This not only increases the difficulty of cleaning, but also forces maintenance personnel to enter the regenerator chamber for manual cleaning, which consumes a lot of time and manpower, but also brings corresponding safety risks. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art that the powder generated during the movement of the pulverized heat storage body is easily trapped at the bottom of the heat storage chamber through the grid, and to propose an energy-saving regenerative burner device for aluminum smelting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An energy-saving regenerative burner device for aluminum smelting includes a body with multiple regenerative chambers. A sealing door corresponding to each regenerative chamber is provided on the side of the body. A regenerative body mounting box located within each regenerative chamber is slidably installed in the body. A regenerative body is installed inside the regenerative body mounting box. A grid that movably abuts against the regenerative body is movably installed on the bottom surface of the regenerative body mounting box. A first control unit for controlling the opening and closing of holes in the grid is provided between the grid and the sealing door. A second control unit for controlling the opening and closing of the sealing door is provided on the body. A third control unit for controlling the horizontal movement of the regenerative body mounting box as the sealing door opens and closes is provided on the body.

[0006] Preferably, the sealed door is provided with a handle.

[0007] Preferably, a slide rail is fixedly connected to the inner wall of the heat storage chamber, a slide groove corresponding to the slide rail is provided on the heat storage body mounting box, and a sliding plate is fixedly connected to the heat storage body mounting box and slidably installed on the slide rail.

[0008] Preferably, the positions of the holes on the grid correspond to the positions of the holes in the heat storage body, and the area of ​​the grid is larger than the bottom area of ​​the heat storage body mounting box.

[0009] Preferably, the first control unit includes a storage groove formed on the grille, the two ends of the opening of the storage groove are in active contact with the heat storage body mounting box at corresponding positions, a sealing plate for sealing the grille holes is slidably installed on the storage groove, a guide plate that is slidably connected to the heat storage body mounting box is fixedly connected to the sealing plate, two connecting rods connected to the guide plate are pin-driven on the side of the sealing door near the heat storage chamber, an abutment rod is fixedly connected to the connecting rod, and a limiting rod corresponding to the abutment rod is fixedly connected to the grille.

[0010] Preferably, the connecting rod is composed of an upper section rod, a middle section rod, and a lower section rod connected in sequence. The upper section rod is slidably installed on the side of the sealing door near the heat storage chamber. The upper section rod is a horizontally arranged rectangular rod, and the height of the rectangular rod is at least three-quarters of the height of the sealing door. The middle section rod is a vertically arranged rectangular rod. The lower section rod is a horizontally arranged rectangular rod that is fixedly connected to the sealing plate. The limiting rod has an L-shaped structure.

[0011] Preferably, the second control unit includes a mounting plate fixedly connected to the machine body, a hydraulic cylinder is fixedly mounted on the mounting plate, a push plate is fixedly connected to the output end of the hydraulic cylinder, an abutment plate is fixedly connected to the sealing door, and a semi-circular hole matching the outer edge contour of the output end of the hydraulic cylinder is opened on the abutment plate, and a pressure sensor is embedded in the semi-circular hole.

[0012] Preferably, the machine body has a storage hole, and a guide post located in the storage hole is fixedly connected to the sealing door. A guide groove is provided on the side of the machine body with the sealing door. The guide groove consists of an upper groove and a lower groove. The width of the upper groove is equal to the diameter of the guide post, and the width of the lower groove is at least 1.2 times the diameter of the guide post.

[0013] Preferably, the third control unit includes a telescopic block fixedly connected to the heat storage body mounting box. The telescopic block is composed of two rectangular sleeves of different sizes connected movably. A first connecting rod is pin-connected between the telescopic block and the side of the sealing door near the heat storage body mounting box.

[0014] Preferably, a collection box is fixedly connected to the lower side of the machine body, a protective door is hinged to the collection box on the same side as the sealing door, a cylinder is installed on the side wall of the collection box, and a second connecting rod is pin-connected between the cylinder and the protective door.

[0015] Compared with the prior art, the present invention has the following advantages: 1. During the horizontal movement of the sealing door, the first control unit will drive the sealing plate to move horizontally, so as to completely seal the holes on the grid, so that the bottom surface of the pulverized heat storage body is in a sealed state, effectively preventing the heat storage body powder from leaking from the grid holes, thereby maintaining a clean working environment when replacing the heat storage body.

[0016] 2. The present invention utilizes the second control unit to drive the sealing door to move vertically. During this process, the sealing door will drive the heat storage body installation box to move horizontally through the third control unit, so that maintenance personnel can move the heat storage body installation box to the outside of the machine without manually pushing it, which is conducive to improving the work efficiency of heat storage body replacement. At the same time, the form of driving the sealing door horizontally first and then vertically helps to reduce the overall area occupied by the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an energy-saving regenerative burner device for aluminum smelting proposed in this invention; Figure 2 This is a schematic diagram of another embodiment of the energy-saving regenerative burner device for aluminum smelting proposed in this invention; Figure 3 For the present invention Figure 2 A schematic diagram of the locally enlarged structure A proposed in the paper; Figure 4 This is a diagram showing the internal state of the aluminum smelting energy-saving regenerative burner device after the disassembly of the sealing door and the installation box of the regenerator. Figure 5 For the present invention Figure 4 A schematic diagram of the B-part enlarged structure proposed in the paper; Figure 6 This is a schematic diagram of the connection structure between the sealing door, the third control unit, the first control unit, and the heat storage body mounting box of an energy-saving regenerative burner device for aluminum smelting proposed in this invention. Figure 7 This is a schematic diagram of the connection structure between the first control unit and the grid of an energy-saving regenerative burner device for aluminum smelting proposed in this invention; Figure 8 For the present invention Figure 7 A schematic diagram of the C-shaped locally enlarged structure proposed in the paper; Figure 9 This is a schematic diagram of the telescopic block structure of an energy-saving regenerative burner device for aluminum smelting proposed in this invention.

[0018] In the diagram: 1. Body; 2. Sealing door; 3. Heat storage box; 4. Grille; 5. Slide rail; 6. Slide groove; 7. Sliding plate; 8. Storage slot; 9. Enclosing plate; 10. Connecting rod; 11. Abutting rod; 12. Limiting rod; 13. Mounting plate; 14. Hydraulic cylinder; 15. Push plate; 16. Abutting plate; 17. Semicircular hole; 18. Storage hole; 19. Guide column; 20. Guide groove; 21. First connecting rod; 22. Collection box; 23. Protective door; 24. Cylinder; 25. Second connecting rod; 26. Telescopic block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] This embodiment relates to an energy-saving regenerative burner device for aluminum smelting, see reference... Figures 1 to 9 As shown, the aluminum smelting energy-saving regenerative burner device includes a body 1 with multiple regenerative chambers inside. A sealing door 2 corresponding to the regenerative chamber is provided on the side of the body 1. A handle is provided on the sealing door 2, and a silicone sleeve is provided on the handle. A regenerative body installation box 3 located in the regenerative chamber is slidably installed in the body 1. A regenerative body is installed in the regenerative body installation box 3.

[0021] A slide rail 5 is fixedly connected to the inner wall of the heat storage chamber. A slide groove 6 corresponding to the slide rail 5 is provided on the heat storage body mounting box 3. The slide rail 5 and slide groove 6 guide and limit the movement of the heat storage body mounting box 3, helping to improve its stability during movement. A sliding plate 7 is fixedly connected to the heat storage body mounting box 3 and slidably mounted on the slide rail 5. The sliding connection between the sliding plate 7 and the heat storage body mounting box 3 ensures that the heat storage body mounting box 3 will not detach from the slide rail 5 when moved outside the machine body 1. This allows the heat storage body mounting box 3 to move outside the machine body 1 without detachment, so that after replacing the heat storage body, the operator does not need to re-mount it. The installation of the heat storage body mounting box 3 helps improve the installation efficiency of the heat storage body replacement. The bottom surface of the heat storage body mounting box 3 is movably installed with a grid 4 that moves against the heat storage body. The position of the holes on the grid 4 corresponds to the position of the holes in the heat storage body. Each honeycomb channel of the heat storage body is an independent micro heat exchange channel. The coaxial alignment of the holes of the grid 4 and the heat storage body channel forms a smooth and continuous flow channel. The gas can pass smoothly through the holes of the grid 4 and directly enter the heat storage body channel, minimizing additional resistance and thus saving energy consumption of the induced draft fan or blower. The area of ​​the grid 4 is larger than the bottom surface area of ​​the heat storage body mounting box 3.

[0022] A first control unit for controlling the opening and closing of the holes on the grille 4 is provided between the grille 4 and the sealing door 2. The first control unit includes a receiving groove 8 formed on the grille 4. The two ends of the opening of the receiving groove 8 are in active contact with the heat storage body mounting box 3 at corresponding positions to ensure the sealing of the heat storage body in the heat storage body mounting box 3. A sealing plate 9 for sealing the holes of the grille 4 is slidably installed on the receiving groove 8. The structure of the sealing plate 9 must correspond to the grille 4. While retaining the area in contact between the receiving groove 8 and the heat storage body mounting box 3, holes matching the holes of the grille 4 should also be provided to avoid affecting the continuity of the flow channel formed by the coaxial alignment of the grille 4 and the heat storage body channel. A guide plate 27 that is slidably connected to the heat storage body mounting box 3 is fixedly connected to the sealing plate 9. A pin is installed on the side of the sealing door 2 near the heat storage chamber. Two connecting rods 10 are connected to the guide plate 27 by pins. It should be noted that the heat storage body mounting box 3 has guide holes for sliding installation of the guide plate 27. The distance between the two connecting rods 10 is greater than the width of the heat storage body mounting box 3 on the same side. Here, "same side" refers to the side of the heat storage body mounting box 3 closer to the connecting rods 10. An abutment rod 11 is fixedly connected to the guide plate 27. A limiting rod 12 corresponding to the abutment rod 11 is fixedly connected to the grid 4. The limiting rod 12 has an L-shaped structure. The movement stroke of the abutment rod 11 is limited by the limiting rod 12. After the limiting rod 12 and the abutment rod 11 move and abut against each other, the sealing plate 9 reaches its maximum movement stroke. At this time, the sealing plate 9 will completely cover the holes on the grid 4, thereby preventing the heat storage body powder from falling to the bottom of the heat storage chamber through the holes, which helps to ensure the cleanliness of the working environment inside the heat storage chamber.

[0023] The machine body 1 is equipped with a second control unit for controlling the opening and closing of the sealing door 2. The second control unit includes a mounting plate 13 fixedly connected to the machine body 1, a hydraulic cylinder 14 fixedly mounted on the mounting plate 13, a push plate 15 fixedly connected to the output end of the hydraulic cylinder 14, and an abutment plate 16 fixedly connected to the sealing door 2. The abutment plate 16 has a semi-circular hole 17 that matches the outer contour of the output end of the hydraulic cylinder 14. A pressure sensor is embedded in the semi-circular hole 17. When the output end of the hydraulic cylinder 14 makes contact with the semi-circular hole 17, the pressure signal detected by the pressure sensor will change, and the hydraulic cylinder 14 will... Upon receiving the signal, the device is activated, and then the push plate 15 drives the contact plate 16 to move vertically upward, thereby causing the sealing door 2 to release from the closed state of the body 1. The body 1 has a storage hole 18, and a guide post 19 located in the storage hole 18 is fixedly connected to the sealing door 2. A guide groove 20 is provided on the side of the body 1 with the sealing door 2. The depth of the storage hole 18 matches the maximum stroke of the sealing plate 9. The guide groove 20 consists of an upper groove and a lower groove. The width of the upper groove is equal to the diameter of the guide post 19, and the width of the lower groove is at least 1.2 times the diameter of the guide post 19.

[0024] The body 1 is equipped with a third control unit for controlling the horizontal movement of the heat storage tank 3 as the sealing door 2 opens and closes. The third control unit includes a telescopic block 26 fixedly connected to the heat storage tank 3. The telescopic block 26 is composed of two rectangular sleeves of different sizes connected movably. The depth of the receiving hole 18 and the maximum telescopic stroke of the telescopic block 26 match the maximum movement stroke of the sealing plate 9. A first connecting rod 21 is pin-connected between the telescopic block 26 and the side of the sealing door 2 near the heat storage tank 3. It should be noted that the length of the first connecting rod 21 is the same as the length of the connecting rod 10 to ensure that the first connecting rod 21 and the connecting rod 10 are connected. The transmission ratio of the two connecting rods 10 remains consistent, and the connection points on the heat storage body mounting box 3 and the grid 4 form a parallelogram with the corresponding connection points on the sealing door 2. This ensures that during the movement of the sealing door 2, the first connecting rod 21 always remains parallel to the connecting rod 10, and the displacements of the heat storage body mounting box 3 and the grid 4 in the vertical and horizontal directions are completely consistent. Both the first connecting rod 21 and the connecting rod 10 are mounted on the heat storage body mounting box 3, the grid 4, and the sealing door 2 via pins. This rotary pair provides the necessary rotational freedom while constraining the relative movement in other directions, ensuring the stability and precision of the entire linkage system.

[0025] In this embodiment, when the heat storage body needs to be replaced, the sealing door 2 is pulled. The sealing door 2 causes the guide post 19 to disengage from the receiving hole 18. The sealing door 2 drives the telescopic block 26 to extend and retract via the first connecting rod 21. The sealing door 2 drives the guide plate 27 to move horizontally via the connecting rod 10. The guide plate 27 drives the sealing plate 9 and the abutment rod 11 to move horizontally. The sealing door 2 drives the abutment plate 16 until the end of the guide post 19 near the receiving hole 18 and the guide groove 20 connect to the side wall of the receiving hole 18 in the longitudinal direction and become coplanar. At this time, the guide post 19 is completely disengaged from the receiving hole 18, the telescopic block 26 reaches its maximum extension and retraction stroke, the sealing plate 9 completely seals the holes on the grille 4, the abutment rod 11 and the limit rod 12 move against each other, and the semi-circular hole 17 moves against the output end of the hydraulic cylinder 14. The pressure signal detected by the pressure sensor will change. After receiving the signal, the hydraulic cylinder 14 will start and drive the abutment plate 16 to move vertically upward through the push plate 15, so that the sealing door 2 will be released from the closed state of the machine body 1. The sealing door 2 drives the heat storage box 3 to move horizontally through the first connecting rod 21. The sealing door 2 drives the guide plate 27 to move horizontally through the connecting rod 10. Since the abutment rod 11 and the limit rod 12 are in abutting state at this time, the guide plate 27 can drive the grille 4 to move horizontally. It should be noted that the movement of the grille 4 and the heat storage box 3 is synchronous until the heat storage box 3 is completely separated from the machine body 1. At this time, the sliding plate 7 is still located on the slide rail 5. At this time, the operator can pick up the heat storage body through the clamp. After the staff replaces the heat storage body, the hydraulic cylinder 14 drives the push plate 15 to move vertically downward. At this time, the sealing door 2 moves vertically downward under the action of gravity, so that the push plate 15 always moves against the contact plate 16. Since the force required for the heat storage body installation box 3 and the grid 4 to move is much greater than the force required for the telescopic block 26 and the sealing plate 9 to move, the telescopic block 26 and the sealing plate 9 will move first during the downward movement of the sealing door 2. At this time, the sealing plate 9 no longer blocks the holes on the grid 4 until the contact rod 11 moves against the heat storage body installation box 3 and the telescopic block 26 reaches its maximum stroke. At this time, the sealing door 2 will drive the heat storage body installation box 3 and the grid 4 to move towards the heat storage chamber through the first connecting rod 21 and the connecting rod 10 during the downward movement. When the guide column 19 is horizontally aligned with the receiving hole 18, the staff pushes the sealing door 2 so that the guide column 19 is completely inserted into the receiving hole 18. At this time, the heat storage body installation box 3 and the grid 4 are completely inserted into the working area.

[0026] In another embodiment, a collection box 22 is fixedly connected to the lower side of the body 1. A protective door 23 is hinged to the collection box 22 on the same side as the sealing door 2. A cylinder 24 is installed on the side wall of the collection box 22. A second connecting rod 25 is pin-connected between the cylinder 24 and the protective door 23. The cylinder 24 controls the opening and closing of the protective door 23 through the second connecting rod 25. The collection box 22 can be used as a temporary storage area for heat storage. The collection box 22 can be equipped with a partition. The internal space of the collection box 22 is divided into two storage spaces with different functions by the partition. One is used to store new heat storage and the other is used to store old heat storage. The temporary storage area can serve as a buffer in the maintenance process to ensure the orderly replacement of new and old heat storage. At the same time, it provides rapid access support for spare parts in the event of a sudden failure, reducing system downtime.

[0027] In this embodiment, when it is necessary to remove the heat storage body, the cylinder 24 is activated to drive one end of the second connecting rod 25 to move, and the other end of the second connecting rod 25 drives the protective door 23 to open, so that the staff can take out the old heat storage body.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving regenerative burner device for aluminum smelting, comprising a body (1) with multiple regenerative chambers, characterized in that, The side of the body (1) is provided with a sealing door (2) corresponding to the heat storage chamber. A heat storage body installation box (3) located in the heat storage chamber is slidably installed in the body (1). A heat storage body is installed in the heat storage body installation box (3). A grid (4) that moves against the heat storage body is movably installed on the bottom surface of the heat storage body installation box (3). A first control part for controlling the opening and closing of the holes on the grid (4) is provided between the grid (4) and the sealing door (2). A second control part for controlling the opening and closing of the sealing door (2) is provided on the body (1). A third control part for controlling the horizontal movement of the heat storage body installation box (3) with the opening and closing of the sealing door (2) is provided on the body (1).

2. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, The sealed door (2) is equipped with a handle.

3. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, A slide rail (5) is fixedly connected to the inner wall of the heat storage chamber. A slide groove (6) corresponding to the slide rail (5) is opened on the heat storage body mounting box (3). A sliding plate (7) is fixedly connected to the heat storage body mounting box (3) and slidably installed on the slide rail (5).

4. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, The positions of the holes on the grid (4) correspond to the positions of the holes in the heat storage body, and the area of ​​the grid (4) is larger than the bottom area of ​​the heat storage body mounting box (3).

5. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, The first control unit includes a storage groove (8) opened on the grille (4). The two ends of the opening of the storage groove (8) are in active contact with the heat storage body mounting box (3) at corresponding positions. The storage groove (8) is slidably installed with a sealing plate (9) for sealing the holes of the grille (4). A guide plate (27) that is slidably connected to the sealing plate (9) and the heat storage body mounting box (3) is fixedly connected. Two connecting rods (10) that are connected to the guide plate (27) are installed on the side of the sealing door (2) near the heat storage chamber. An abutment rod (11) is fixedly connected to the guide plate (27). A limiting rod (12) corresponding to the abutment rod (11) is fixedly connected to the grille (4).

6. The energy-saving regenerative burner device for aluminum smelting according to claim 5, characterized in that, The heat storage body mounting box (3) is provided with a guide hole for sliding installation of the guide plate (27), and the limiting rod (12) is an L-shaped structure.

7. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, The second control unit includes a mounting plate (13) fixedly connected to the body (1), a hydraulic cylinder (14) fixedly mounted on the mounting plate (13), a push plate (15) fixedly connected to the output end of the hydraulic cylinder (14), a contact plate (16) fixedly connected to the sealing door (2), and a semi-circular hole (17) matching the outer contour of the output end of the hydraulic cylinder (14) on the contact plate (16), and a pressure sensor is embedded in the semi-circular hole (17).

8. The energy-saving regenerative burner device for aluminum smelting according to claim 7, characterized in that, The body (1) has a storage hole (18) and a guide post (19) located in the storage hole (18) is fixedly connected to the sealing door (2). A guide groove (20) is provided on the side of the body (1) where the sealing door (2) is located. The guide groove (20) is composed of an upper groove and a lower groove. The width of the upper groove is equal to the diameter of the guide post (19), and the width of the lower groove is at least 1.2 times the diameter of the guide post (19).

9. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, The third control unit includes a telescopic block (26) fixedly connected to the heat storage body mounting box (3). The telescopic block (26) is composed of two rectangular sleeves of different sizes connected in a movable manner. The telescopic block (26) is connected to the side of the sealing door (2) near the heat storage body mounting box (3) by a pin shaft with a first connecting rod (21).

10. The energy-saving regenerative burner device for aluminum smelting according to claim 1, characterized in that, A collection box (22) is fixedly connected to the lower side of the body (1). A protective door (23) is hinged to the collection box (22) and the sealing door (2) on the same side. A cylinder (24) is installed on the side wall of the collection box (22). A second connecting rod (25) is connected between the cylinder (24) and the protective door (23) by a pin.

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