Aluminum alloy smelting system

Abstract

The utility model discloses an aluminum alloy smelting system which relates to the technical field of metal smelting and comprises a furnace body, a furnace door is hinged to the front side of the furnace body through a hinge, an air pressure sensor is fixedly arranged on the left side of the upper portion of the furnace body, and a temperature sensor is fixedly arranged on the right side of the air pressure sensor and located above the furnace body. A smelting air inlet pipe is arranged at the bottom of the left side of the furnace body, an ash removal box is fixedly arranged at the top of the right side of the furnace body, an ash removal door is hinged to the right end face of the ash removal box through a hinge, a first collection box is arranged above the ash removal box, and the ash removal box is connected with the first collection box through a first exhaust pipe. A first filter screen is arranged on the inner side of the ash removal box and located on the left side of an air inlet of the first exhaust pipe. According to the aluminum alloy smelting furnace, smelting gas is conveyed into the furnace body through the smelting gas inlet pipe, aluminum alloy can be conveniently machined and smelted, the gas pressure sensor monitors whether gas leakage occurs in the furnace body or not, and the furnace body can be conveniently overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to an aluminum alloy smelting system. Background Technique

[0002] Metal smelting is an important industrial process used to extract metals from their ores or waste materials and process them into usable forms. Smelting heats metal ores or waste materials above their melting points through high temperatures, separating the metals and forming liquids. Common smelting equipment includes electric arc furnaces, induction furnaces, and flame furnaces, etc. Different equipment is suitable for different types and scales of metal smelting. Aluminum alloys are widely used in multiple industrial fields, such as manufacturing automotive parts, aerospace devices, building materials, and electronic equipment, etc. Due to their excellent performance characteristics, such as high strength, good thermal conductivity, and corrosion resistance, a smelting system for aluminum alloys is required.

[0003] The utility model with the authorization announcement number CN206052122U discloses an aluminum alloy smelting system. This utility model can monitor the temperature through a temperature sensor to prevent caking and blockage due to too low temperature, set up a discharging device to ensure the stability of the pipeline connection at the discharging port, use a holding furnace for refining, and set up a heat return pipe between the holding furnaces to improve the thermal energy utilization efficiency.

[0004] The above device can achieve the purpose of smelting aluminum alloys, but this device is not equipped with an ash cleaning device. During the aluminum alloy smelting process, it is inevitable to generate smelting dust, so it needs to be cleaned. Moreover, the thermal energy utilization efficiency of the smelting waste gas of this device is not high, and the heat in the smelting waste gas is not reused multiple times, resulting in a relatively low degree of energy conservation. Content of the Utility Model

[0005] The purpose of the utility model is to provide an aluminum alloy smelting system to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An aluminum alloy melting system includes a furnace body. A furnace door is hinged to the front side of the furnace body. A pressure sensor is fixedly arranged on the left side above the furnace body. A temperature sensor is fixedly arranged on the right side of the pressure sensor above the furnace body. A melting intake pipe is arranged at the bottom left of the furnace body. A dust cleaning box is fixedly arranged at the top right of the furnace body. A dust cleaning door is hinged to the right end face of the dust cleaning box. A first collecting box is arranged above the dust cleaning box. The dust cleaning box is connected to the first collecting box through a first exhaust pipe. A first filter screen is arranged inside the dust cleaning box and the first filter screen is located on the left side of the intake port of the first exhaust pipe. A heat exchanger is arranged on the right side of the first collecting box. The first collecting box is connected to the heat exchanger through a second exhaust pipe. A third exhaust pipe is arranged at the discharge port of the heat exchanger.

[0008] As a further scheme of the utility model: A first handle is fixedly arranged on the front side of the furnace door. A second handle is fixedly arranged on the dust cleaning door.

[0009] As a further scheme of the utility model: A second filter screen is arranged inside the first collecting box and the second filter screen is located below the intake port of the second exhaust pipe.

[0010] As a further scheme of the utility model: A second collecting box is arranged at the top left of the furnace body. The furnace body is connected to the second collecting box through a second return pipe. A blower is fixedly arranged on the left side of the second collecting box. The second collecting box is connected to the first collecting box through a first return pipe.

[0011] As a further scheme of the utility model: An electromagnetic control valve is arranged on the first return pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The melting gas is conveyed into the furnace body through the melting intake pipe, which is convenient for processing and melting the aluminum alloy. The pressure sensor monitors whether there is air leakage in the furnace body. When there is air leakage, the pressure detected by the pressure sensor will drop, which is convenient for overhauling the furnace body.

[0014] 2. The discharged tail gas is initially filtered through the first filter screen, and the melting dust is retained in the dust cleaning box. Moreover, the flow rate of the tail gas is reduced, which is convenient for the melting dust to further deposit in the dust cleaning box. The second filter screen conducts a second filtration on the melting tail gas in the first collecting box, further reducing the dust content in the melting tail gas. At the same time, the filtered melting tail gas is fed to the heat exchanger, which is convenient for the heat exchanger to utilize the heat in the melting tail gas, achieving the purpose of saving energy.

[0015] 3. The filtered smelting tail gas is refluxed into the second collection box through the first return air pipe, and the blower conveys the outside air and the refluxed smelting tail gas into the furnace body, thereby facilitating the furnace body to efficiently smelt aluminum alloy and improving the smelting efficiency of aluminum alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 It is a front view structure schematic diagram of an embodiment of the present utility model.

[0018] Figure 3 It is a top view structure schematic diagram of an embodiment of the present utility model.

[0019] Figure 4 It is a sectional structure schematic diagram of an embodiment of the present utility model.

[0020] ANNOTATION OF REFERENCE NUMERALS: 1. Furnace body; 2. Furnace door; 3. First handle; 4. Melting intake pipe; 5. Second return air pipe; 6. Second collection box; 7. Blower; 8. First return air pipe; 9. Electromagnetic control valve; 10. Air pressure sensor; 11. Temperature sensor; 12. Ash cleaning box; 13. Ash cleaning door; 14. Second handle; 15. First filter screen; 16. First exhaust pipe; 17. First collection box; 18. Second filter screen; 19. Second exhaust pipe; 20. Heat exchanger; 21. Third exhaust pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following embodiments will describe the present utility model in detail with reference to the drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the components can be enlarged or reduced. The embodiments listed in the present utility model are only used to illustrate the present utility model and are not used to limit the scope of the present utility model. Any obvious modification or change made to the present utility model does not depart from the spirit and scope of the present utility model.

[0022] Embodiment

[0023] Please refer to Figures 1 to 4, in the embodiment of the present utility model, an aluminum alloy melting system includes a furnace body 1. A furnace door 2 is hinged to the front side of the furnace body 1. A first handle 3 is fixedly arranged on the front side of the furnace door 2. A pressure sensor 10 is fixedly arranged on the upper left side of the furnace body 1. A temperature sensor 11 is fixedly arranged above the furnace body 1 on the right side of the pressure sensor 10. A melting inlet pipe 4 is arranged at the bottom left side of the furnace body 1. Melting gas is conveyed into the furnace body 1 through the melting inlet pipe 4, which is convenient for processing and melting aluminum alloy. The pressure sensor 10 monitors whether there is air leakage in the furnace body 1. When there is air leakage, the detected air pressure by the pressure sensor 10 will drop, which is convenient for overhauling the furnace body 1.

[0024] A dust cleaning box 12 is fixedly arranged at the top right side of the furnace body 1. A dust cleaning door 13 is hinged to the right end face of the dust cleaning box 12. A second handle 14 is fixedly arranged on the dust cleaning door 13. A first collecting box 17 is arranged above the dust cleaning box 12. The dust cleaning box 12 is connected to the first collecting box 17 through a first exhaust pipe 16. A first filter screen 15 is arranged inside the dust cleaning box 12 and the first filter screen 15 is located on the left side of the air inlet of the first exhaust pipe 16. A heat exchanger 20 is arranged on the right side of the first collecting box 17. The first collecting box 17 is connected to the heat exchanger 20 through a second exhaust pipe 19. A second filter screen 18 is arranged inside the first collecting box 17 and the second filter screen 18 is located below the air inlet of the second exhaust pipe 19. A third exhaust pipe 21 is arranged at the discharge port of the heat exchanger 20. The discharged tail gas is initially filtered by the first filter screen 15, and the melting dust is retained in the dust cleaning box 12, and the flow rate of the tail gas is reduced, which is convenient for the melting dust to further deposit in the dust cleaning box 12. The second filter screen 18 conducts a second filtration on the melting tail gas in the first collecting box 17, further reducing the dust content in the melting tail gas. At the same time, the filtered melting tail gas is fed to the heat exchanger 20, which is convenient for the heat exchanger 20 to utilize the heat in the melting tail gas, achieving the purpose of saving energy.

[0025] A second collecting box 6 is arranged at the top left side of the furnace body 1. The furnace body 1 is connected to the second collecting box 6 through a second return pipe 5. A blower 7 is fixedly arranged on the left side of the second collecting box 6. The second collecting box 6 is connected to the first collecting box 17 through a first return pipe 8. An electromagnetic control valve 9 is arranged on the first return pipe 8. The filtered melting tail gas is refluxed into the second collecting box 6 through the first return pipe 8. The blower 7 conveys the outside air and the refluxed melting tail gas into the furnace body 1, which is convenient for the furnace body 1 to efficiently melt the aluminum alloy and improve the melting efficiency of the aluminum alloy.

[0026] When the device is in use, the furnace door 2 is opened through the first handle 3, the aluminum alloy is placed in the furnace body 1, and then the furnace door 2 is closed. The smelting gas is transported into the furnace body 1 through the smelting inlet pipe 4. The air pressure sensor 10 and the temperature sensor 11 monitor the air pressure and temperature conditions in the furnace body 1. Then the tail gas is transported into the dust cleaning box 12. The first filter screen 15 initially filters the discharged tail gas, and the smelting dust is retained in the dust cleaning box 12. When dust cleaning is required, the dust cleaning door 13 is opened to clean the smelting dust in the dust cleaning box 12. Then the second filter screen 18 conducts a second filtration on the smelting tail gas in the first collection box 17. Then a part of the tail gas is transported from the first return pipe 8 to the second collection box 6. The blower 7 transports the outside air and the recycled smelting tail gas into the furnace body 1, thereby facilitating the efficient smelting of the aluminum alloy in the furnace body 1. When the temperature in the furnace body 1 is insufficient for smelting, the blower 7 and the electromagnetic control valve 9 are closed to increase the temperature in the furnace body 1. Another part of the tail gas is fed to the heat exchanger 20 to further utilize the heat in the tail gas and improve the utilization degree of the smelting tail gas by the device. Finally, the tail gas is discharged to the outside through the third exhaust pipe 21.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An aluminum alloy smelting system, comprising a furnace body (1), characterized in that: The furnace body (1) is hingedly connected to a furnace door (2) on the front side, an air pressure sensor (10) is fixedly arranged on the left side above the furnace body (1), a temperature sensor (11) is fixedly arranged on the right side of the air pressure sensor (10) and located above the furnace body (1), a smelting air inlet pipe (4) is arranged on the bottom of the left side of the furnace body (1), a dust cleaning box (12) is fixedly arranged on the top of the right side of the furnace body (1), a dust cleaning door (13) is hingedly connected to the right end face of the dust cleaning box (12), and a dust cleaning box (12) is arranged above the dust cleaning box (12). A first collecting box (17) is provided, and a cleaning box (12) is connected to the first collecting box (17) via a first exhaust pipe (16); a first filter screen (15) is arranged on the inner side of the cleaning box (12), and the first filter screen (15) is located on the left side of the air inlet of the first exhaust pipe (16); a heat exchanger (20) is arranged on the right side of the first collecting box (17); the first collecting box (17) is connected to the heat exchanger (20) via a second exhaust pipe (19); and a third exhaust pipe (21) is arranged at the outlet of the heat exchanger (20).

2. The aluminum alloy smelting system according to claim 1, characterized in that: A first handle (3) is fixedly provided on the front side of the furnace door (2), and a second handle (14) is fixedly provided on the ash cleaning door (13).

3. The aluminum alloy smelting system according to claim 2, characterized in that: A second filter screen (18) is arranged in the first collecting box (17), and the second filter screen (18) is located below the air inlet of the second exhaust pipe (19).

4. The aluminum alloy smelting system according to any one of claims 1 to 3, characterized in that: A second collecting box (6) is arranged at the top of the left side of the furnace body (1), and the furnace body (1) is connected to the second collecting box (6) via a second air return pipe (5). A blower (7) is fixedly arranged on the left side of the second collecting box (6), and the second collecting box (6) is connected to the first collecting box (17) via a first air return pipe (8).

5. The aluminum alloy smelting system according to claim 4, characterized in that: The first air return pipe (8) is provided with an electromagnetic control valve (9).

Images