Aluminum melting furnace refractory material lining construction equipment
By setting up a sealed cavity and piston ring system in the aluminum melting furnace lining construction equipment, combined with vermiculite and ceramic fiber fillers, the problem of lining deformation at high temperatures was solved, achieving uniform flow and efficient heating of molten aluminum, reducing energy consumption and extending equipment life.
Patent Information
- Application Number
- CN202520464297.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The lining of an aluminum melting furnace is prone to deformation under high temperature conditions, which leads to uneven flow of molten aluminum and uneven heating, increases energy consumption, and may cause cracks, shortening its service life.
A construction device for refractory lining of an aluminum melting furnace was designed. By setting a sealing cavity between the movable top seat and the fixed ring plate, and equipping it with a piston ring, a push ring and a clamping ring, the tightness of the clamping ring is adjusted by gas pressure. Combined with vermiculite and ceramic fiber fillers for heat insulation, the device achieves precise clamping and long-term protection of the lining components.
It effectively prevents lining deformation, ensures uniform flow and heating of molten aluminum, improves aluminum melting efficiency, reduces energy consumption, and extends equipment service life.
Smart Images
Figure CN223814962U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aluminium melting furnace equipment technical field especially relates to a kind of aluminium melting furnace refractory lining construction equipment. BACKGROUND
[0002] In modern aluminium smelting and related industrial production system, aluminium melting furnace occupies irreplaceable key position, and is called the core pivot of entire production flow;Whether its operating state is stable, operation is safe, like the weight of balance two ends, directly to the height of production efficiency and the advantage of product quality plays decisive role.
[0003] In actual operation process, the working temperature of aluminium melting furnace is usually as high as 660 DEG C above, even close to 1000 DEG C under certain special process, in such high temperature environment, lining material can occur thermal expansion and cold shrinkage, due to uneven heating of lining each part, and the scouring force brought by aluminium liquid flow, lining is prone to deformation problem, not only affect the flow and heating uniformity of aluminium liquid, reduce aluminium melting efficiency, increase energy consumption, and excessive deformation can also cause lining crack, high-temperature aluminium liquid and furnace gas can penetrate to furnace wall along crack, accelerate the corrosion of furnace wall, shorten the service life of aluminium melting furnace, increase maintenance cost and downtime. CONTENT OF THE UTILITY MODEL
[0004] In view of the lining is prone to deformation problem, not only affect the flow and heating uniformity of aluminium liquid, reduce aluminium melting efficiency, increase energy consumption, and excessive deformation can also cause lining crack, high-temperature aluminium liquid and furnace gas can penetrate to furnace wall along crack, accelerate the corrosion of furnace wall, shorten the service life of aluminium melting furnace, increase maintenance cost and downtime, the utility model provides a kind of aluminium melting furnace refractory lining construction equipment, with precise compact and long-acting protection function, can effectively prevent the lining deformation advantage, solve the problem mentioned in background art.
[0005] The utility model provides following technical scheme: a kind of aluminium melting furnace refractory lining construction equipment, including aluminium melting furnace body, the top of the aluminium melting furnace body is equipped with movable top seat, the inside of the aluminium melting furnace body is equipped with lining piece, the inboard bottom of movable top seat is fixedly connected with fixed ring plate, sealing cavity is arranged at the gap between fixed ring plate and movable top seat, the inside of the sealing cavity is equipped with piston ring, the outer wall of piston ring is attached with the inner wall of sealing cavity, the bottom of piston ring is fixedly connected with lower push ring, the bottom of lower push ring is slidably connected to the open end of the bottom of sealing cavity, the bottom of lower push ring is fixedly connected with compact ring, the bottom of compact ring is compatible with the top end of lining piece, the top of movable top seat is symmetrically provided with two air holes, and the upper end of two air holes is fixedly connected with suction hose and gas injection hose respectively.
[0006] Preferably, the bottoms of the two air holes are communicated with the top of the sealing cavity, the air extraction hose is connected with an external vacuum pump, and the air injection hose is connected with an external air pump.
[0007] By communicating the bottoms of the two air holes with the top of the sealing cavity, the inner lining can be pressed or loosened flexibly.
[0008] Preferably, the side of the movable top base is uniformly provided with a plurality of connecting bolts, and the movable top base is detachably connected to the upper end of the aluminum melting furnace body through the connecting bolts.
[0009] By uniformly arranging the plurality of connecting bolts on the side of the movable top base, the movable top base can be quickly disassembled and assembled, thereby improving the convenience and efficiency of equipment maintenance.
[0010] Preferably, the inner wall of the aluminum melting furnace body is filled with a vermiculite filler, and the inner side of the vermiculite filler is filled with a ceramic fiber filler.
[0011] By the low thermal conductivity of the vermiculite filler and the good heat insulation performance of the ceramic fiber filler, the heat conduction from the furnace to the furnace wall is effectively blocked, and the heat loss is reduced.
[0012] Preferably, the inner side of the ceramic fiber filler is attached to the outer wall of the inner lining.
[0013] By the ceramic fiber filler, the heat transfer from the inner lining to the furnace wall is reduced, and the stress generated by the thermal expansion of the inner lining is also buffered.
[0014] Preferably, the upper end of the movable top base is provided with a feeding port cover plate.
[0015] The utility model has the following effects:
[0016] 1. By arranging the sealing cavity between the movable top base and the fixed ring plate, the piston ring, the push-down ring and the compression ring are arranged in the cavity, when air injection, the gas enters the sealing cavity, the piston ring is pushed to move downward, and then drives the push-down ring and the compression ring to descend, so that the compression ring is tightly pressed on the top end of the inner lining, and by controlling the air injection or air extraction operation, the compression degree of the compression ring can be adjusted in time, the deformation of the inner lining under the complex working conditions such as high temperature of the aluminum melting furnace and aluminum liquid washing is effectively limited, the normal flow and uniform heating of the aluminum liquid in the furnace are ensured, the aluminum melting efficiency is improved, and the energy consumption is reduced.
[0017] 2. The application realizes efficient heat insulation by sequentially filling vermiculite filler and ceramic fiber filler in the inner wall of the aluminum melting furnace body, and the ceramic fiber filler is attached to the outer wall of the lining piece, the vermiculite filler and the ceramic fiber filler both have good heat insulation performance, can effectively block the conduction of heat in the furnace to the furnace wall, reduce heat loss, improve the energy utilization efficiency of the aluminum melting furnace, reduce the energy cost in the production process, and improve the overall performance of the aluminum melting furnace. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view structural schematic diagram of the application.
[0019] Figure 2 It is a schematic diagram of the internal structure of the aluminum melting furnace body of the application.
[0020] Figure 3 It is a schematic diagram of the overall structure of the application.
[0021] Figure 4 It is a schematic diagram of the overall structure of the application. Figure 3 It is a schematic diagram of the overall structure of the application.
[0022] In the figure: 1, aluminum melting furnace body; 2, movable top seat; 3, inlet cover plate; 4, connecting bolt; 5, lining piece; 6, ceramic fiber filler; 7, vermiculite filler; 8, fixed ring plate; 9, sealing cavity; 10, piston ring; 11, push ring; 12, compression ring; 13, air hole; 14, air hose; 15, gas injection hose. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.
[0024] Please refer to Figures 1-4The utility model provides a kind of aluminium melting furnace refractory lining construction equipment, including aluminium melting furnace body 1, the top of aluminium melting furnace body 1 is equipped with movable top seat 2, the inside of aluminium melting furnace body 1 is equipped with lining piece 5, the inside bottom of movable top seat 2 is fixedly connected with fixed ring plate 8, the gap between fixed ring plate 8 and movable top seat 2 is provided with sealing cavity 9, the inside of sealing cavity 9 is equipped with piston ring 10, piston ring 10 in sealing cavity 9 selects high-temperature alloy material, with excellent high-temperature resistance, keep good strength and antioxidant property, can effectively resist high temperature invasion when aluminium melting furnace works, avoid piston ring 10 softening, deformation due to high temperature, ensure its stable operation in sealing cavity 9, piston ring 10 outer wall and sealing cavity 9 inner wall fit, the bottom of piston ring 10 is fixedly connected with lower push ring 11, the bottom of lower push ring 11 is slidably connected to the open end of the bottom of sealing cavity 9, the bottom of lower push ring 11 is fixedly connected with compression ring 12, the bottom of compression ring 12 is adapted to the top end of lining piece 5, by being provided with sealing cavity 9 between movable top seat 2 and fixed ring plate 8, piston ring 10, lower push ring 11 and compression ring 12 are equipped in cavity, when injecting gas, gas enters sealing cavity 9, piston ring 10 is pushed to move downward, in turn drives lower push ring 11 and compression ring 12 to descend, so that compression ring 12 is tightly pressed on the top end of lining piece 5, and by controlling injection or gas extraction operation, the compression degree of compression ring 12 can be adjusted in time, effectively limit the deformation of lining piece 5 under the complex working conditions of high temperature of aluminium melting furnace, aluminum liquid washing etc., ensure the normal flow and uniform heating of aluminum liquid in the furnace, improve the efficiency of aluminium melting, reduce energy consumption.
[0025] Please refer to Figure 3 The top of movable top seat 2 is symmetrically provided with two gas holes 13, the upper ends of the two gas holes 13 are fixedly connected with gas extraction hose 14 and gas injection hose 15 respectively, the outer ends of the gas extraction hose 14 and the gas injection hose 15 are equipped with gas valves, and the gas flow is accurately controlled.
[0026] Please refer to Figures 2-3 The bottoms of the two gas holes 13 are communicated with the top of the sealing cavity 9, the gas extraction hose 14 is connected with an external vacuum pump, and the gas injection hose 15 is connected with an external air pump.
[0027] Please refer to Figures 1-3, the inner wall of the molten aluminum furnace body 1 is filled with vermiculite filler 7, the inner side of the vermiculite filler 7 is filled with ceramic fiber filler 6, and the outer wall of the inner lining 5 is attached to the inner side of the ceramic fiber filler 6. By sequentially filling the vermiculite filler 7 and the ceramic fiber filler 6 in the inner wall of the molten aluminum furnace body 1, and attaching the ceramic fiber filler 6 to the outer wall of the inner lining 5, high-efficiency heat insulation is achieved. The vermiculite filler 7 and the ceramic fiber filler 6 both have good heat insulation performance, effectively blocking the conduction of heat from the furnace to the furnace wall, reducing heat loss, improving the energy utilization efficiency of the molten aluminum furnace, reducing the energy cost in the production process, and improving the overall performance of the molten aluminum furnace. The upper end of the movable top seat 2 is provided with a feeding port cover plate 3. By installing the feeding port cover plate 3 in the upper end of the movable top seat 2, the heat loss in the furnace can be effectively prevented during normal production of the molten aluminum furnace, and the energy utilization rate is improved.
[0028] Working principle: In specific use, first install the molten aluminum furnace refractory lining construction equipment in place, install the movable top seat 2 on the upper end of the molten aluminum furnace body 1 through the connecting bolts 4, and ensure firm installation. When the inner lining 5 needs to be compressed, start the external air pump, inject gas into the sealed cavity 9 through the air injection hose 15. Because the outer wall of the piston ring 10 in the sealed cavity 9 is tightly attached to the inner wall of the sealed cavity 9, the injected gas accumulates in the sealed cavity 9, causing the pressure in the cavity to gradually increase. The pressure acts on the piston ring 10, pushing it to move downward. The piston ring 10 is fixedly connected to the lower push ring 11, which moves downward synchronously with the piston ring 10. The fixedly connected compression ring 12 at the bottom of the lower push ring 11 also descends. Because the bottom of the compression ring 12 is adapted to the top end of the inner lining 5, the compression ring 12 gradually contacts and exerts pressure on the top end of the inner lining 5 during the descending process, thereby compressing the inner lining 5 and limiting its deformation during subsequent work of the molten aluminum furnace. When the molten aluminum furnace completes the work and needs to be inspected, replaced, or other parts of the molten aluminum furnace need to be repaired, start the external vacuum pump and extract the gas in the sealed cavity 9 through the air extraction hose 14. As the gas is extracted, the pressure in the sealed cavity 9 gradually decreases, forming a negative pressure. Under the action of the external atmospheric pressure, the piston ring 10, the lower push ring 11, and the compression ring 12 move upward, causing the compression ring 12 to separate from the inner lining 5. At this time, the connecting bolts 4 can be unscrewed, and the movable top seat 2 can be removed from the molten aluminum furnace body 1, facilitating subsequent maintenance operations.
Claims
1. A refractory lining construction device for an aluminum melting furnace, comprising an aluminum melting furnace body (1), characterized in that: The aluminum melting furnace body (1) is provided with a movable top seat (2) at the top. The aluminum melting furnace body (1) is provided with an inner liner (5) inside. A fixed ring plate (8) is fixedly connected to the bottom inner side of the movable top seat (2). A sealing cavity (9) is provided in the gap between the fixed ring plate (8) and the movable top seat (2). A piston ring (10) is provided inside the sealing cavity (9). The outer wall of the piston ring (10) is in contact with the inner wall of the sealing cavity (9). A push ring (11) is fixedly connected to the bottom of the piston ring (10). The two sides of the bottom of the push ring (11) are slidably connected to the opening end of the bottom of the sealing cavity (9). A pressure ring (12) is fixedly connected to the bottom of the push ring (11). The bottom of the pressure ring (12) is adapted to the top of the inner liner (5). Two air holes (13) are symmetrically opened on the top of the movable top seat (2). A suction hose (14) and an injection hose (15) are fixedly connected to the upper ends of the two air holes (13) respectively.
2. The refractory lining construction equipment for an aluminum melting furnace according to claim 1, characterized in that: The bottom of the two air holes (13) are connected to the top of the sealing cavity (9), the air extraction hose (14) is connected to an external vacuum pump, and the air injection hose (15) is connected to an external air pump.
3. The refractory lining construction equipment for an aluminum melting furnace according to claim 1, characterized in that: Multiple connecting bolts (4) are evenly installed on the side of the movable top seat (2). The movable top seat (2) is detachably connected to the upper end of the aluminum melting furnace body (1) by the connecting bolts (4).
4. The refractory lining construction equipment for an aluminum melting furnace according to claim 1, characterized in that: The inner wall of the aluminum melting furnace body (1) is filled with vermiculite filler (7), and the inner side of the vermiculite filler (7) is filled with ceramic fiber filler (6).
5. The refractory lining construction equipment for an aluminum melting furnace according to claim 4, characterized in that: The inner side of the ceramic fiber filler (6) is attached to the outer wall of the liner (5).
6. The refractory lining construction equipment for an aluminum melting furnace according to claim 1, characterized in that: The upper middle part of the movable top seat (2) is equipped with a feed inlet cover plate (3).