Aluminum and aluminum alloy casting device with heat preservation chute
By setting up a heat exchange zone between the chute and the chute shell and using high-temperature furnace gas for heat exchange, the problem of large heat loss in the chute is solved, heat energy is recovered and reused, and the quality and production efficiency of aluminum and aluminum alloy casting are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHALCO SHANXI NEW MATERIAL CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-28
AI Technical Summary
In existing aluminum and aluminum alloy casting processes, the heat loss from the sluice is significant, resulting in poor product quality and high energy consumption.
A heat exchange zone is set between the chute and the chute shell. High-temperature furnace gas is introduced into the heat exchange zone far from the discharge port through the air inlet pipe to exchange heat with the chute. An insulation layer is set in the chute to reduce heat loss, thus forming a heat energy recovery and reuse system.
It effectively reduces heat loss in aluminum and aluminum alloy melts, maintains melt temperature, improves product quality, increases thermal energy utilization efficiency, and saves production costs.
Smart Images
Figure CN224175613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum and aluminum alloy melting and casting technology, specifically to an aluminum and aluminum alloy melting and casting device with an insulated chute. Background Technology
[0002] In aluminum and aluminum alloy casting processes, chutes are liquid conveying devices that utilize height differences and gravity flow to safely and efficiently transport molten aluminum or aluminum alloys from the smelting furnace to the casting machine. Typically, the length of a chute can range from several meters to tens of meters, depending on production needs. Due to heat exchange between the molten aluminum and the chute and surrounding environment, the cooling rate of the molten aluminum in the chute is very rapid in the initial stages of production, potentially causing a temperature drop of 5°C or even higher per meter of chute. This not only affects the final product quality, easily leading to problems such as segregation, porosity, bubbles, and solidification in the chute, but also increases the furnace start-up temperature requirements for aluminum and aluminum alloy casting, resulting in significant energy loss and consumption during production. Current technology typically installs an insulation cover on the top of the chute to reduce heat loss, but the insulation effect is not ideal. In actual production, even with an insulation cover, the temperature still drops by 3-4°C per meter of chute, failing to fundamentally solve the problem of heat loss. Utility Model Content
[0003] To address the problems of high heat loss and poor product quality during melt transfer in the existing technology, this utility model provides an aluminum and aluminum alloy melting and casting device with an insulated chute.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] An aluminum and aluminum alloy melting and casting apparatus with an insulated chute includes a melting furnace, an inlet pipe, an insulated chute, a casting machine, an outlet pipe, and a dust collection pipe. The melting furnace has a discharge port on its side, which is connected to the inlet end of the insulated chute. The discharge end of the insulated chute is connected to the inlet end of the casting machine. The insulated chute includes an insulated cover plate, a chute shell, a chute itself, and a support plate. The chute is U-shaped, and the insulated cover plate is positioned above the opening of the chute. A dust collection pipe is fitted over the outside of the chute. The sluice box has a shell, and a horizontally arranged support plate is provided between the sluice box and the shell. One end of the support plate is connected to the sluice box, and the other end is connected to the shell. The gap between the shell, the sluice box, and the support plate is a heat exchange zone. One end of the air inlet pipe is connected to the smelting furnace, and the other end is connected to the heat exchange zone away from the outlet of the smelting furnace. One end of the air outlet pipe is connected to the dust collection pipe, and the other end is connected to the heat exchange zone near the outlet of the smelting furnace.
[0006] Furthermore, the heat-insulating cover is connected to the chute shell.
[0007] Furthermore, the inner wall of the chute shell is provided with a heat insulation layer.
[0008] Furthermore, the intake pipe is equipped with a flow regulating valve.
[0009] Furthermore, the inlet of the casting machine is equipped with a temperature sensor.
[0010] Furthermore, a buffer device is provided between the discharge end of the insulated chute and the feed inlet of the casting machine.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention provides an aluminum and aluminum alloy melting and casting device with an insulated chute. A heat exchange zone is set between the chute and its shell, and the air inlet pipe is connected to the heat exchange zone away from the furnace outlet. This allows the high-temperature furnace gas discharged from the furnace to exchange heat with the chute and its surrounding environment within the heat exchange zone, reducing heat loss from the molten aluminum and aluminum alloy and slowing down the cooling rate of the molten aluminum and aluminum alloy in the chute. This ensures that the molten aluminum and aluminum alloy maintains a relatively high temperature when it reaches the casting machine, which is beneficial to improving product quality. At the same time, the air inlet pipe, heat exchange zone, and air outlet pipe form a heat energy recovery and reuse system, improving the efficiency of heat energy utilization, avoiding additional energy consumption during production, and saving production costs. Attached Figure Description
[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:
[0014] Fig. 1 A top view of an embodiment of an aluminum and aluminum alloy melting and casting apparatus with an insulated chute is shown;
[0015] Fig. 2 A schematic diagram of an embodiment of the heat-insulating chute is shown;
[0016] Attached diagram labels: 1-Smelting furnace, 2-Inlet pipe, 3-Insulated chute, 4-Foundry machine, 5-Outlet pipe, 6-Dust collection pipe, 301-Insulated cover plate, 302-Chute shell, 303-Chute, 304-Support plate. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0018] Reference Appendix Figs. 1-2A melting and casting apparatus for aluminum and aluminum alloys with an insulated chute includes a melting furnace 1, an inlet pipe 2, an insulated chute 3, a casting machine 4, an outlet pipe 5, and a dust collection pipe 6. The melting furnace 1 has a discharge port on its side, which is connected to the inlet end of the insulated chute 3. The outlet end of the insulated chute 3 is connected to the inlet end of the casting machine 4. The insulated chute 3 includes an insulated cover plate 301, a chute shell 302, a chute 303, and a support plate 304. The chute 303 is a U-shaped trough, and the insulated cover plate 301 is positioned above the opening of the chute 303. The outer casing of 03 is a chute shell 302. A horizontally arranged support plate 304 is provided between the chute 303 and the chute shell 302. One end of the support plate 304 is connected to the chute 303 and the other end is connected to the chute shell 302. The gap between the chute shell 302, the chute 303 and the support plate 304 is a heat exchange zone. One end of the air inlet pipe 2 is connected to the smelting furnace 1 and the other end is connected to the heat exchange zone away from the outlet of the smelting furnace 1. One end of the air outlet pipe 5 is connected to the dust collection pipe 6 and the other end is connected to the heat exchange zone near the outlet of the smelting furnace 1.
[0019] In one embodiment of this utility model, the heat-insulating cover plate 301 is connected to the chute housing 302.
[0020] In one embodiment of this utility model, the inner wall of the chute shell 302 is provided with a heat insulation layer, which is composed of multiple layers of high temperature resistant and low thermal conductivity materials to enhance the heat preservation effect.
[0021] In one embodiment of this utility model, the air inlet pipe 2 is provided with a flow regulating valve to control the flow rate of the high-temperature furnace gas entering the heat exchange zone.
[0022] In one embodiment of this utility model, the feed inlet of the casting machine 4 is equipped with a temperature sensor for real-time monitoring of the temperature of the aluminum and aluminum alloy melt entering the casting machine 4.
[0023] In one embodiment of this utility model, a buffer device is provided between the discharge end of the heat-insulating chute 3 and the feed inlet of the casting machine 4 to slow down the flow rate of aluminum and aluminum alloy melt and avoid impact and damage to the casting machine.
[0024] During the molten material transport process, high-temperature furnace gas enters the heat exchange zone between the chute shell 302 and the chute 303 through the gas inlet pipe 2, and exchanges heat with the chute 303, so that the chute 303 has a high temperature. At the same time, the high-temperature furnace gas keeps the heat exchange zone in a high-temperature environment, reducing the heat exchange between the aluminum and aluminum alloy molten material and the chute and its external environment during the transport process, and reducing heat loss.
[0025] This invention provides an aluminum and aluminum alloy melting and casting device with an insulated chute. A heat exchange zone is set between the chute and its shell, and the air inlet pipe is connected to the heat exchange zone away from the furnace outlet. This allows the high-temperature furnace gas discharged from the furnace to exchange heat with the chute and its surrounding environment within the heat exchange zone, reducing heat loss from the molten aluminum and aluminum alloy and slowing down the cooling rate of the molten aluminum and aluminum alloy in the chute. This ensures that the molten aluminum and aluminum alloy maintains a relatively high temperature when it reaches the casting machine, which is beneficial to improving product quality. At the same time, the air inlet pipe, heat exchange zone, and air outlet pipe form a heat energy recovery and reuse system, improving the efficiency of heat energy utilization, avoiding additional energy consumption during production, and saving production costs.
[0026] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.
Claims
1. An aluminum and aluminum alloy melting and casting device with an insulated chute, characterized in that, The system includes a smelting furnace (1), an air inlet pipe (2), an insulated chute (3), a casting machine (4), an air outlet pipe (5), and a dust collection pipe (6); the smelting furnace (1) has a discharge port on its side, which is connected to the inlet end of the insulated chute (3), and the discharge end of the insulated chute (3) is connected to the inlet of the casting machine (4); the insulated chute (3) includes an insulated cover plate (301), a chute shell (302), a chute (303), and a support plate (304); the chute (303) is a U-shaped chute, the insulated cover plate (301) is positioned above the opening of the chute (303), and the chute shell (304) is fitted over the outside of the chute (303). 02), a horizontally arranged support plate (304) is provided between the chute (303) and the chute shell (302). One end of the support plate (304) is connected to the chute (303), and the other end is connected to the chute shell (302). The gap between the chute shell (302), the chute (303) and the support plate (304) is a heat exchange zone. One end of the air inlet pipe (2) is connected to the smelting furnace (1), and the other end is connected to the heat exchange zone away from the outlet of the smelting furnace (1). One end of the air outlet pipe (5) is connected to the dust collection pipe (6), and the other end is connected to the heat exchange zone near the outlet of the smelting furnace (1).
2. The aluminum and aluminum alloy melting and casting device with an insulated chute according to claim 1, characterized in that, The heat-insulating cover plate (301) is connected to the chute shell (302).
3. The aluminum and aluminum alloy melting and casting device with an insulated chute according to claim 1, characterized in that, The inner wall of the chute housing (302) is provided with a heat insulation layer.
4. The aluminum and aluminum alloy melting and casting device with an insulated chute according to claim 1, characterized in that, The air intake pipe (2) is equipped with a flow regulating valve.
5. The aluminum and aluminum alloy melting and casting device with an insulated chute according to claim 1, characterized in that, The feed inlet of the casting machine (4) is equipped with a temperature sensor.
6. An aluminum and aluminum alloy melting and casting apparatus with an insulated chute according to claim 1 or 5, characterized in that, A buffer device is provided between the discharge end of the heat-insulating chute (3) and the feed inlet of the casting machine (4).