Cast aluminum alloy wheel smelting waste heat recovery energy-saving treatment device

Abstract

The utility model discloses a cast aluminum alloy wheel smelting waste heat recovery energy-saving treatment device, and relates to the technical field of automobile machining. The device comprises a preheating bin, the two ends of the preheating bin are of an open structure, C-shaped plates are symmetrically and fixedly arranged on the two inner side walls of the preheating bin, and the two sides of a wheel to be smelted are embedded in the C-shaped plates; and the preheating assembly comprises U-shaped pipes embedded in the two sides of the interior of the preheating bin, the lower ends of the U-shaped pipes communicate with an air inlet bin, one side of the air inlet bin communicates with an air inlet pipe, and the air inlet pipe communicates with a smoke outlet of the melting furnace. The waste heat of the high-temperature flue gas of the smelting furnace is used for preheating and dehumidifying the materials to be smelted to realize gradient utilization of energy, the investment of drying equipment is reduced, the maintenance cost of the equipment is reduced, part of fuel is replaced by the waste heat, and the device integrates double functions of flue gas waste heat recovery and material pretreatment and has high efficiency, safety and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive processing equipment technology, specifically to an energy-saving device for recovering waste heat from the melting of cast aluminum alloy wheels. Background Technology

[0002] The smelting process of cast aluminum alloy wheels is a key link in industrial production. The flue gas generated during the smelting process of cast aluminum alloy wheels has a high temperature (over 300℃) and has potential thermal energy and resource value.

[0003] In actual processing, the heated flue gas is usually discharged outdoors through pipes, which results in significant energy waste. In addition, aluminum alloy wheels need to be cleaned before melting, which makes the material surface wet. The existing process directly puts the wet material into the melting furnace, which requires additional energy to evaporate the moisture, prolongs the melting time and increases fuel consumption. Therefore, we propose an energy-saving treatment device for waste heat recovery in the melting of cast aluminum alloy wheels to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] An energy-saving device for recovering waste heat from the smelting of cast aluminum alloy wheels includes:

[0006] The preheating chamber has an open structure at both ends, and its two inner side walls are symmetrically fixed with U-shaped plates, and the two sides of the wheel to be melted are embedded in the U-shaped plates.

[0007] The preheating component includes U-shaped tubes embedded on both sides inside the preheating chamber. The lower end of the U-shaped tube is connected to an air inlet chamber, and one side of the air inlet chamber is connected to an air inlet pipe, which is connected to the exhaust port of the melting furnace. The higher end of the U-shaped tube is connected to a guide pipe, and the other end of the guide pipe is connected to an exhaust chamber. One side of the exhaust chamber is connected to an exhaust pipe.

[0008] Furthermore, it also includes a drive unit, which is disposed at the top of the preheating chamber and is used to drive the wheels to be melted to move along the U-shaped plate.

[0009] Furthermore, the driving component includes a mounting box movably disposed on the top of the preheating chamber, a driving rod slidably inserted in the middle of the mounting box, a strip-shaped hole formed in the middle of the top of the preheating chamber, the driving rod slidably inserted inside the strip-shaped hole, a fixing plate fixedly disposed on one side of the driving rod inside the mounting box, a spring connected between the top of the fixing plate and the top wall of the mounting box, and the spring being sleeved on the surface of the driving rod.

[0010] Furthermore, the top of the preheating chamber is symmetrically fixed with limiting plates on both sides of the strip hole, and the bottom of both sides of the mounting box is fixed with extension blocks, which are slidably embedded inside the limiting plates.

[0011] Furthermore, a transparent observation window is provided on the front of the preheating chamber.

[0012] Furthermore, a first strip groove is inclinedly provided at two corners of the inner wall of the U-shaped plate, and a first roller is rotatably connected at equal intervals inside the first strip groove. A second strip groove is fixedly provided in the middle of the inner wall of the U-shaped plate, and a second roller is rotatably connected at equal intervals inside the second strip groove.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes the waste heat of high-temperature flue gas from the smelting furnace for preheating and dehumidifying the materials to be smelted, thereby achieving cascaded energy utilization, reducing investment in drying equipment, lowering equipment maintenance costs, and replacing some fuel with waste heat. This device integrates the dual functions of "flue gas waste heat recovery + material pretreatment," combining high efficiency, safety, and economy, and providing an innovative solution for the green manufacturing of cast aluminum alloy wheels. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is another three-dimensional structural schematic diagram of this utility model;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 This is a utility model Figure 3 Schematic diagram of cross-section along the AA direction.

[0019] Reference numerals: 1. Preheating chamber; 101. Strip hole; 102. Limiting plate; 103. Transparent observation window; 2. C-shaped plate; 3. Preheating assembly; 301. U-shaped tube; 302. Air inlet chamber; 303. Air inlet pipe; 304. Guide pipe; 305. Air outlet chamber; 306. Exhaust pipe; 4. Driving component; 401. Mounting box; 4011. Extension block; 402. Driving rod; 403. Fixing plate; 404. Spring; 5. First strip groove; 6. First roller; 7. Second strip groove; 8. Second roller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] This application provides an energy-saving device for recovering waste heat from the melting of cast aluminum alloy wheels. It primarily addresses the problem of significant energy waste caused by the existing technology of discharging heated flue gas outdoors through pipes. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation:

[0022] A waste heat recovery and energy-saving treatment device for cast aluminum alloy wheel melting includes: a preheating chamber 1, which has an open structure at both ends and has a U-shaped plate 2 symmetrically fixed on its two inner side walls, with the two sides of the wheel to be melted embedded inside the U-shaped plate 2.

[0023] The preheating component 3 includes a U-shaped tube 301 embedded in both sides of the preheating chamber 1. The lower end of the U-shaped tube 301 is connected to an air inlet chamber 302. An air inlet pipe 303 is connected to one side of the air inlet chamber 302. The air inlet pipe 303 is connected to the exhaust port of the melting furnace. The higher end of the U-shaped tube 301 is connected to a guide pipe 304. The other end of the guide pipe 304 is connected to an exhaust chamber 305. An exhaust pipe 306 is connected to one side of the exhaust chamber 305.

[0024] Workflow Description:

[0025] When in use, the high-temperature flue gas (greater than 300°C) generated by the smelting furnace enters the inlet pipe 303 through the exhaust port, and is distributed to the U-shaped pipes 301 on both sides of the preheating chamber 1 through the inlet chamber 302. The flue gas flows in the U-shaped pipes 301 and releases heat into the preheating chamber 1.

[0026] Workers can place the cleaned, damp wheels (the first batch of wheels can be directly put into the smelting furnace, while the preheated wheels are mainly for the second and subsequent batches) one by one into the U-shaped plate 2 in the middle of the preheating chamber 1. The high-temperature flue gas preheats the surface of the wheels to be smelted through the wall of the U-shaped pipe 301, reducing the energy consumption of subsequent smelting.

[0027] After cooling, the flue gas flows into the exhaust chamber 305 through the top guide pipe 304 of the U-shaped pipe 301 and is discharged through the exhaust pipe 306 (which can be further processed or recycled). The gas is then continuously put into new wheels and the above process is repeated.

[0028] This device utilizes the waste heat from the high-temperature flue gas in the smelting furnace for preheating and dehumidifying the materials to be smelted, achieving cascaded energy utilization, reducing investment in drying equipment, lowering equipment maintenance costs, and replacing some fuel with waste heat. Through the integration of "flue gas waste heat recovery + material pretreatment", this device combines high efficiency, safety and economy, providing an innovative solution for the green manufacturing of cast aluminum alloy wheels.

[0029] like Figure 4As shown, in some embodiments, a driving component 4 is also included. The driving component 4 is disposed on the top of the preheating chamber 1. The driving component 4 is used to drive the wheel to be melted to move along the U-shaped plate 2. The driving component 4 includes a mounting box 401 movably disposed on the top of the preheating chamber 1. A driving rod 402 is slidably inserted through the middle of the mounting box 401. A strip hole 101 is constructed in the middle of the top of the preheating chamber 1. The driving rod 402 is slidably inserted inside the strip hole 101. A fixing plate 403 is fixedly provided on one side of the driving rod 402 inside the mounting box 401. A spring 404 is connected between the top of the fixing plate 403 and the inner top wall of the mounting box 401, and the spring 404 is sleeved on the surface of the driving rod 402. More specifically, in use, the mounting box 401 is moved to the feeding end of the preheating chamber 1 (near the air inlet pipe). (On one side of 303), first pull the drive rod 402 upward to horizontally place the first wheel to be melted into the U-shaped plate 2. Then release it. Under the action of the spring 404, the drive rod 402 passes through the circle in the middle of the wheel to be melted. Then move the mounting box 401 so that the first wheel to be melted moves to the other side of the preheating chamber 1. Subsequent wheels to be melted can be placed into the preheating chamber 1 by mutual squeezing. After the preheating operation is completed, the mounting box can be moved. The first wheel to be melted that enters the preheating chamber 1 can push the subsequent wheels to move outward. When the first wheel to be melted is close to the port of the preheating chamber 1, pull the drive rod 402 upward again so that its bottom end is separated from the wheel to be melted. In this way, the last wheel to be melted can be removed, and the preheating work is completed.

[0030] like Figure 4 As shown, in some embodiments, the top of the preheating chamber 1 is symmetrically fixed with limiting plates 102 on both sides of the strip hole 101, and the bottom of both sides of the mounting box 401 is fixed with extension blocks 4011. The extension blocks 4011 are slidably embedded in the limiting plates 102. More specifically, the function of the limiting plates 102 is to restrict the position of the mounting box 401 so that it does not move upward.

[0031] like Figure 2 As shown, in some embodiments, a transparent observation window 103 is provided on the front of the preheating chamber 1. More specifically, by providing a transparent observation window 103, it is convenient for staff to observe the position of the wheel to be melted, and to conveniently insert the drive rod 402 into the round hole in the middle of the melting wheel.

[0032] like Figure 4 As shown, in some embodiments, a first strip groove 5 is inclinedly provided at the two corners of the inner wall of the U-shaped plate 2. A first roller 6 is rotatably connected at equal intervals inside the first strip groove 5. A second strip groove 7 is fixed in the middle of the inner wall of the U-shaped plate 2. A second roller 8 is rotatably connected at equal intervals inside the second strip groove 7. More specifically, by setting the first roller 6 and the second roller 8 to abut against the melting wheel, the friction force during the movement of the melting wheel can be reduced.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste heat recovery and energy-saving treatment device for cast aluminum alloy wheel smelting, characterized in that, Including: A preheating bin (1), both ends of the preheating bin (1) are open structures, and two inner side walls thereof are symmetrically and fixedly provided with U-shaped plates (2), and both sides of the wheel to be melted are embedded inside the U-shaped plates (2); A preheating component (3), the preheating component (3) includes U-shaped pipes (301) embedded on both sides inside the preheating bin (1), a lower end of the U-shaped pipe (301) is connected to an air inlet bin (302), one side of the air inlet bin (302) is connected to an air inlet pipe (303), the air inlet pipe (303) is connected to the smoke exhaust port of the melting furnace, a higher end of the U-shaped pipe (301) is upwardly connected to a diversion pipe (304), the other end of the diversion pipe (304) is connected to an air outlet bin (305), and one side of the air outlet bin (305) is connected to an exhaust pipe (306).

2. The energy-saving device for waste heat recovery from the smelting of cast aluminum alloy wheels according to claim 1, characterized in that, It further includes a driving member (4), the driving member (4) is arranged on the top of the preheating bin (1), and the driving member (4) is used to drive the wheel to be melted to move along the U-shaped plate (2).

3. The energy-saving device for waste heat recovery from the smelting of cast aluminum alloy wheels according to claim 2, characterized in that, The driving member (4) includes a mounting box (401) movably arranged on the top of the preheating bin (1), a driving rod (402) is slidably inserted through the middle of the mounting box (401), a strip-shaped hole (101) is formed in the middle of the top of the preheating bin (1), and the driving rod (402) is slidably inserted inside the strip-shaped hole (101), a fixed disk (403) is fixedly arranged on one side of the driving rod (402) inside the mounting box (401), a spring (404) is connected between the top of the fixed disk (403) and the inner top wall of the mounting box (401), and the spring (404) is sleeved on the surface of the driving rod (402).

4. The energy-saving device for waste heat recovery from the smelting of cast aluminum alloy wheels according to claim 3, characterized in that, Limiting plates (102) are symmetrically and fixedly arranged on both sides of the top of the preheating bin (1) on both sides of the strip-shaped hole (101), extension blocks (4011) are fixedly arranged at the bottoms of both sides of the mounting box (401), and the extension blocks (4011) are slidably embedded inside the limiting plates (102).

5. The energy-saving device for waste heat recovery from the smelting of cast aluminum alloy wheels according to claim 1, characterized in that, A transparent observation window (103) is arranged on the front of the preheating bin (1).

6. The energy-saving device for waste heat recovery from the smelting of cast aluminum alloy wheels according to claim 1, characterized in that, First strip-shaped grooves (5) are obliquely arranged at two corners of the inner wall of the U-shaped plate (

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