Aluminum reverberatory furnace refractory lining body structure of overhead burner
By designing a top-mounted burner and constructing a refractory lining, the problems of burner space occupation and furnace lining damage in reverberatory furnaces were solved, achieving stable operation of the reverberatory furnace and efficient melting of aluminum blocks.
Patent Information
- Application Number
- CN202423097623.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In existing reverberatory furnaces, the burners are installed on the side wall of the furnace, which results in a large space occupation and flame splashing causing localized damage to the furnace lining, affecting operational stability.
The design employs a top-mounted burner, combined with components such as the furnace top steel structure, I-beams, ceramic fiber blankets, and trapezoidal splicing seams to form a stable refractory lining structure. The ceramic fiber blankets provide thermal insulation, the trapezoidal splicing seams improve the ease of replacement, and the fixing mechanism enhances stability.
It improves the operational stability and molten aluminum block efficiency of the reverberatory furnace, reduces furnace lining damage, and enhances the maintenance efficiency and high-temperature resistance of the refractory lining.
Smart Images
Figure CN223500134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reverberatory furnace technology, specifically to a refractory lining structure for an aluminum reverberatory furnace with a top-mounted burner. Background Technology
[0002] A reverberatory furnace is a commonly used thermal equipment for aluminum melting and casting. The heat transfer method inside the furnace is not only by the reflection of the flame, but more importantly by the radiation heat transfer through the furnace top, furnace walls and hot gas. During operation, the reverberatory furnace uses the high-speed flame ejected from the burner nozzle of the regenerative burner to melt the aluminum material in the furnace to obtain molten aluminum, and completes operations such as slag removal, refining and degassing.
[0003] Burners are typically installed on the side walls of kilns, which takes up more space. Furthermore, the flames spraying from the side onto the aluminum material and then splashing onto the furnace wall can cause localized overheating of the furnace lining, thus exacerbating the erosion of the lining by slag and causing localized damage to the lining, leading to unplanned shutdowns of the reverberatory furnace. To address these issues, we have developed a top-mounted burner aluminum reverberatory furnace refractory lining structure. Summary of the Invention
[0004] The purpose of this invention is to provide a refractory lining structure for an aluminum reverberatory furnace with a top-mounted burner, in order to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a refractory lining structure for an aluminum reverberatory furnace with a top burner, comprising a furnace top steel structure and burners, wherein an I-beam is fixedly connected to the surface of the furnace top steel structure, and a furnace top working layer is provided below the I-beam, wherein a fixing mechanism and a connecting mechanism are provided on the surface of the furnace top working layer, wherein the fixing mechanism includes a fixing plate and a threaded anchor fixedly connected to the furnace top working layer, and the connecting mechanism includes a connecting anchor rod and a sliding plate, wherein a limiting rod for limiting the connecting anchor rod is slidably connected inside the sliding plate.
[0006] Preferably, the top end of the burner is fixedly connected to the steel structure of the furnace top, and the bottom end of the burner is fixedly connected to the adjacent working layer of the furnace top. A ceramic fiber blanket is fixedly connected to the surface of the working layer of the furnace top. The ceramic fiber blanket provides heat insulation to the working layer of the furnace top, offsets the stress generated by the thermal expansion of the furnace wall, and prevents the high temperature inside the reverberatory furnace from spreading to the outside.
[0007] Preferably, the interior of the furnace top working layer is provided with trapezoidal splicing seams, and two adjacent furnace top working layers are tightly fitted together through the trapezoidal splicing seams. The surface of the ceramic fiber blanket is fixedly connected to the furnace top insulation layer. Through the trapezoidal splicing seams, the two sides of the furnace top working layer are divided into an interlocking state. When a furnace top working layer is damaged, only the corresponding furnace top working layer needs to be replaced.
[0008] Preferably, the bottom end of the connecting anchor rod is fixedly connected to the adjacent furnace top working layer, and the top end of the connecting anchor rod is clamped with a connecting frame, and the top end of the connecting frame is clamped with the I-beam. The connecting anchor rod is fixed to the bottom of the I-beam by the cross combination of the two connecting frames.
[0009] Preferably, the sliding plate is threaded with a fastening bolt in the middle, and the top of the fastening bolt is in close contact with the I-beam. By the top of the fastening bolt being in close contact with the surface of the I-beam, the sliding plate is fixed to the surface of the I-beam, thereby improving the stability of the sliding plate during operation.
[0010] Preferably, one end of the limiting rod is inserted into the connecting anchor rod, and the other end of the limiting rod is fixedly connected to a telescopic spring, and one end of the telescopic spring is fixedly connected to the sliding plate. The telescopic spring provides tension to the limiting rod, making the insertion of the limiting rod and the connecting anchor rod more tight.
[0011] Preferably, the top of the fixing plate is tightly connected to the I-beam by connecting bolts, a fixing ring is fixedly connected to the surface of the I-beam, and a fixing sleeve is hinged to the top of the threaded anchor. The top of the fixing plate is fixed by connecting bolts, thereby reinforcing the furnace top working layer near the burner.
[0012] Preferably, the top end of the fixed sleeve is rotatably connected to an adjusting nut, and the internal thread of the adjusting nut is connected to a fixing screw, and the top end of the fixing screw is engaged with a fixing ring. By engaging the fixing ring at the top end of the fixing screw with the fixing ring, the working layer of the furnace top is fixed directly below the I-beam.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This application uses a furnace top steel structure to fix the I-beams and the burners, allowing the burners to heat and melt the aluminum blocks inside the reverberatory furnace. The furnace top steel structure and the I-beams are used to install and position the furnace top working layer, improving the maintenance efficiency of the furnace top working layer. The furnace top working layer is reinforced and positioned using fixing plates and threaded anchors, thereby fixing the furnace top working layer to the bottom surface of the I-beams. The limiting rods are fixed using sliding plates, and the limiting rods are connected to the connecting anchor rods, thus connecting the furnace top working layer to the I-beams.
[0015] 2. This application uses ceramic fiber blankets to provide thermal insulation for the furnace top working layer, offsetting the stress generated by the thermal expansion of the furnace wall, preventing the high temperature inside the reverberatory furnace from spreading to the outside, and improving the efficiency of molten aluminum blocks in the reverberatory furnace. The furnace top insulation layer provides thermal insulation for the reverberatory furnace, preventing the high temperature inside the reverberatory furnace from spreading to the outside, and improving the efficiency of molten aluminum blocks in the reverberatory furnace. The trapezoidal splicing seam divides the two sides of the furnace top working layer into an interlocking state. When one part of the furnace top working layer is damaged, only the corresponding furnace top working layer needs to be replaced. It can also prevent flames from passing through the splicing seam and impacting the insulation layer and metal anchors, causing irreversible damage. The connecting anchor rod is fixed to the bottom of the I-beam by two connecting frames that are cross-combined.
[0016] 3. This application secures the sliding plate to the surface of the I-beam by tightly abutting the top of the fastening bolt, thereby improving the stability of the sliding plate's operation. A tension spring provides tension to the limiting rod, ensuring a tighter connection between the limiting rod and the connecting anchor rod, thus enhancing the fixation of the furnace top working layer. Connecting bolts secure the top of the fixing plate, reinforcing the furnace top working layer near the burner and preventing damage from high temperatures near the burner, thus improving the stability of the furnace top working layer's operation. Adjusting the height of the fixing screw and the fixing sleeve by adjusting the nut, and engaging the retaining ring at the top of the fixing screw with the fixing ring, fixes the furnace top working layer directly below the I-beam, further improving the stability of the furnace top working layer's operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the refractory lining of an aluminum reverberatory furnace with a top-mounted burner according to the present invention.
[0018] Figure 2 This is a schematic diagram of the fixing mechanism of the refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to the present invention;
[0019] Figure 3 This is a schematic diagram of the connection mechanism of the refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to this utility model.
[0020] Figure 4 This is an exploded schematic diagram of the connection mechanism of the refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to the present invention.
[0021] The following are the labels in the diagram: 1. Furnace roof steel structure; 2. I-beam; 3. Burner; 4. Furnace roof working layer; 5. Trapezoidal splice; 6. Ceramic fiber blanket; 7. Furnace roof insulation layer; 8. Fixing mechanism; 801. Fixing plate; 802. Connecting bolt; 803. Fixing ring; 804. Threaded anchor; 805. Fixing sleeve; 806. Adjusting nut; 807. Fixing screw; 9. Connecting mechanism; 901. Connecting anchor; 902. Connecting frame; 903. Sliding plate; 904. Fastening bolt; 905. Limiting rod; 906. Telescopic spring. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-4 This utility model provides a technical solution for a refractory lining structure of an aluminum reverberatory furnace with a top burner, including a furnace top steel structure 1 and a burner 3. An I-beam 2 is fixedly connected to the surface of the furnace top steel structure 1, and a furnace top working layer 4 is set below the I-beam 2. The furnace top steel structure 1 fixes the I-beam 2, thereby reinforcing the burner 3, making the heating and melting of the aluminum blocks inside the reverberatory furnace by the burner 3 more stable. The furnace top steel structure 1 and the I-beam 2 are used to install and position the furnace top working layer 4, thereby improving the maintenance efficiency of the furnace top working layer 4.
[0024] The top of the burner 3 is fixedly connected to the furnace top steel structure 1, and the bottom of the burner 3 is fixedly connected to the adjacent furnace top working layer 4. A ceramic fiber blanket 6 is fixedly connected to the surface of the furnace top working layer 4, and a furnace top insulation layer 7 is fixedly connected to the surface of the ceramic fiber blanket 6. The ceramic fiber blanket 6 provides heat insulation to the furnace top working layer 4, offsets the stress generated by the thermal expansion of the furnace wall, prevents the high temperature inside the reverberatory furnace from spreading to the outside, and improves the efficiency of the reverberatory furnace molten aluminum blocks. The furnace top insulation layer 7 provides heat insulation to the reverberatory furnace, prevents the high temperature inside the reverberatory furnace from spreading to the outside, and improves the efficiency of the reverberatory furnace molten aluminum blocks.
[0025] The interior of the furnace top working layer 4 is provided with trapezoidal splicing seams 5, and two adjacent furnace top working layers 4 are tightly fitted together through the trapezoidal splicing seams 5. The trapezoidal splicing seams 5 divide the two sides of the furnace top working layer 4 into an interlocking state. When one furnace top working layer 4 is damaged, only the corresponding furnace top working layer 4 needs to be replaced. This can also prevent flames from penetrating through the splicing seams and impacting the insulation layer and metal anchors, causing irreversible damage.
[0026] The surface of the furnace top working layer 4 is provided with a fixing mechanism 8 and a connecting mechanism 9. The fixing mechanism 8 includes a fixing plate 801 and a threaded anchor 804 that are fixedly connected to the furnace top working layer 4. The fixing plate 801 and the threaded anchor 804 are used to reinforce and position the furnace top working layer 4, thereby fixing the furnace top working layer 4 to the bottom surface of the I-beam 2.
[0027] The top of the fixing plate 801 is tightly connected to the I-beam 2 by connecting bolts 802. A fixing ring 803 is fixedly connected to the surface of the I-beam 2. A fixing sleeve 805 is hinged to the top of the threaded anchor 804. The top of the fixing plate 801 is fixed by connecting bolts 802, thereby reinforcing the furnace top working layer 4 near the burner 3, preventing the high temperature near the burner 3 from damaging the furnace top working layer 4, and improving the stability of the operation of the furnace top working layer 4.
[0028] The top of the fixed sleeve 805 is rotatably connected to an adjusting nut 806. The internal thread of the adjusting nut 806 is connected to a fixing screw 807, and the top of the fixing screw 807 is engaged with a fixing ring 803. By adjusting the adjusting nut 806, the height of the fixing screw 807 and the fixed sleeve 805 is adjusted. By engaging the retaining ring at the top of the fixing screw 807 with the fixing ring 803, the furnace top working layer 4 is fixed directly below the I-beam 2, thereby improving the stability of the furnace top working layer 4 during operation.
[0029] The connecting mechanism 9 includes a connecting anchor rod 901 and a sliding plate 903. The sliding plate 903 has a sliding connection inside which a limiting rod 905 of the limiting connecting anchor rod 901 is slidably connected. The limiting rod 905 is fixed by the sliding plate 903 and is engaged with the connecting anchor rod 901 to connect the furnace top working layer 4 and the I-beam 2 together.
[0030] The bottom end of the connecting anchor rod 901 is fixedly connected to the adjacent furnace top working layer 4. The top end of the connecting anchor rod 901 is clamped with a connecting frame 902, and the top end of the connecting frame 902 is clamped with the I-beam 2. There are two connecting frames 902. The connecting anchor rod 901 is fixed to the bottom of the I-beam 2 by the cross combination of the two connecting frames 902.
[0031] The sliding plate 903 is threaded with a fastening bolt 904 in the middle, and the top of the fastening bolt 904 is in close contact with the I-beam 2. The top of the fastening bolt 904 is provided with a particle protrusion. By the fastening bolt 904 being in close contact with the surface of the I-beam 2, the sliding plate 903 is fixed to the surface of the I-beam 2, thereby improving the stability of the sliding plate 903 during operation.
[0032] One end of the limiting rod 905 is inserted into the connecting anchor rod 901, and the other end of the limiting rod 905 is fixedly connected to a telescopic spring 906. One end of the telescopic spring 906 is fixedly connected to the sliding plate 903. The telescopic spring 906 provides tension to the limiting rod 905, making the insertion of the limiting rod 905 and the connecting anchor rod 901 more tight and improving the fixing ability of the furnace top working layer 4.
[0033] The fixing mechanism 8 and the connecting mechanism 9 are combined to form a furnace top hanging system. On the one hand, it maintains the tension on the furnace top refractory lining. On the other hand, when the furnace top refractory lining undergoes volume changes due to temperature changes, the anchor bricks will not break due to lateral shear force.
[0034] In use, this utility model works as follows: The I-beam 2 is fixed to the furnace top steel structure 1. First, two connecting brackets 902 are cross-combined to fix the connecting anchor rod 901 to the bottom of the I-beam 2, positioning the furnace top working layer 4. A telescopic spring 906 provides tension to the limiting rod 905, causing the limiting rod 905 to engage with the connecting anchor rod 901. Connecting bolts 802 fix the top of the fixing plate 801, reinforcing the furnace top working layer 4 near the burner 3. Adjusting nuts 806 adjust the height of the fixing screw 807 and the fixing sleeve 805. The retaining ring at the top of the fixing screw 807 engages with the fixing ring 803. The furnace top working layer 4 is fixed directly below the I-beam 2 to improve the stability of its operation. The ceramic fiber blanket 6 and the furnace top insulation layer 7 provide thermal insulation to the furnace top working layer 4, offsetting the stress caused by the thermal expansion of the furnace wall, preventing the high temperature inside the reverberatory furnace from spreading to the outside, and improving the efficiency of molten aluminum blocks in the reverberatory furnace. Through the above devices, on the one hand, the tension on the furnace top refractory lining is maintained, and on the other hand, when the volume of the furnace top refractory lining changes due to temperature changes, the anchor bricks will not break due to lateral shear force. When one furnace top working layer 4 is damaged, only the corresponding furnace top working layer 4 needs to be replaced, which improves the maintenance efficiency of the furnace top working layer 4.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A refractory lining structure for an aluminum reverberatory furnace with a top burner, comprising a furnace top steel structure (1) and a burner (3), characterized in that: The surface of the furnace top steel structure (1) is fixedly connected to an I-beam (2), and a furnace top working layer (4) is provided below the I-beam (2). The surface of the furnace top working layer (4) is provided with a fixing mechanism (8) and a connecting mechanism (9). The fixing mechanism (8) includes a fixing plate (801) and a threaded anchor (804) fixedly connected to the furnace top working layer (4). The connecting mechanism (9) includes a connecting anchor rod (901) and a sliding plate (903). The sliding plate (903) is internally slidably connected to a limiting rod (905) of the limiting connecting anchor rod (901).
2. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 1, characterized in that: The top of the burner (3) is fixedly connected to the furnace top steel structure (1), and the bottom of the burner (3) is fixedly connected to the adjacent furnace top working layer (4). A ceramic fiber blanket (6) is fixedly connected to the surface of the furnace top working layer (4).
3. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 2, characterized in that: The interior of the furnace top working layer (4) is provided with a trapezoidal splicing seam (5), and two adjacent furnace top working layers (4) are tightly fitted together through the trapezoidal splicing seam (5). The surface of the ceramic fiber blanket (6) is fixedly connected with the furnace top insulation layer (7).
4. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 1, characterized in that: The bottom end of the connecting anchor rod (901) is fixedly connected to the adjacent furnace top working layer (4), and the top end of the connecting anchor rod (901) is clamped with a connecting frame (902), and the top end of the connecting frame (902) is clamped with the I-beam (2).
5. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 1, characterized in that: The sliding plate (903) is threaded with a fastening bolt (904) in the middle, and the top of the fastening bolt (904) is in close contact with the I-beam (2).
6. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 1, characterized in that: One end of the limiting rod (905) is inserted into the connecting anchor rod (901), and the other end of the limiting rod (905) is fixedly connected to a telescopic spring (906), and one end of the telescopic spring (906) is fixedly connected to the sliding plate (903).
7. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 1, characterized in that: The top end of the fixing plate (801) is tightly connected to the I-beam (2) by connecting bolts (802), and a fixing ring (803) is fixedly connected to the surface of the I-beam (2). The top end of the threaded anchor (804) is hinged to a fixing sleeve (805).
8. The refractory lining structure of an aluminum reverberatory furnace with a top-mounted burner according to claim 7, characterized in that: The top end of the fixed sleeve (805) is rotatably connected to an adjusting nut (806), and the internal thread of the adjusting nut (806) is connected to a fixing screw (807), and the top end of the fixing screw (807) is engaged with a fixing ring (803).