Aluminum alloy waste purifying and smelting device

Abstract

The utility model provides an aluminum alloy waste purifying and smelting device which comprises a furnace frame and a furnace body arranged in the furnace frame, a feeding port is formed in the top of the furnace frame, a discharging port is formed in the bottom of the furnace frame, a pretreatment unit is arranged above the feeding port, and a smelting unit is arranged above the discharging port. The pretreatment unit comprises a magnetic separation device and a feeding channel arranged at the bottom of the magnetic separation device, the feeding channel is matched with the feeding port in size, a mounting layer is arranged below the feeding channel and arranged between the furnace body and the pretreatment unit, a sealing plate is rotationally arranged at the top of the mounting layer, and the sealing plate is connected with the magnetic separation device. A stirring unit is arranged at the bottom of the mounting layer. According to the aluminum alloy waste purifying and smelting device, due to the arrangement of the stirring rod and the stirring rod, aluminum alloy at different positions can be in full contact with hot air in the heating process, it is guaranteed that the aluminum alloy in a furnace can basically reach the melting point within the same time, and the heating time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy waste processing equipment, in particular to an aluminum alloy waste purification and smelting device. Background Art

[0002] Aluminum alloy scrap refers to discarded aluminum alloy materials generated during the production, processing and use of aluminum alloys. Aluminum alloy scrap is usually composed of aluminum and other elements (such as copper, magnesium, silicon, zinc, manganese, etc.), which give the alloy specific properties such as strength, hardness, corrosion resistance, etc. The purity and composition of the scrap have a direct impact on the difficulty of the recycling process and the quality of the recycled aluminum alloy.

[0003] The recycling of aluminum alloys often requires purification and smelting. Purification and smelting refers to the process of removing impurities from aluminum alloy waste or other aluminum-containing materials through smelting to increase the purity of aluminum so that it can be reused in the production of aluminum products. This process is crucial for the recycling and reuse of aluminum materials.

[0004] During purification and smelting, the aluminum alloy waste is often crushed first, and then the crushed aluminum alloy waste is put into a smelting furnace. During smelting, since the aluminum alloy in the smelting furnace is often melted in a static state, the heating temperature of the aluminum alloy materials at different positions is often different. Therefore, the time required for the aluminum alloy at different positions to reach the melting point temperature is often different. In order to complete the smelting of all the aluminum alloys in the furnace, the high temperature time required is often very long, which causes a waste of resources to a certain extent.

[0005] In view of this, a device for purifying and smelting aluminum alloy waste is proposed. Utility Model Content

[0006] The utility model aims to solve the problem that the time required to complete the smelting of aluminum alloys at different positions is different, which causes the smelting furnace to work for a long time and causes waste of resources, and provides an aluminum alloy waste purification and smelting device.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: an aluminum alloy waste purification and smelting device, comprising a furnace frame and a furnace body arranged in the furnace frame, the top of the furnace frame is provided with a feeding port, the bottom of the furnace frame is provided with a discharge port, a pretreatment unit is provided above the feeding port, the pretreatment unit comprises a magnetic separation device and a feeding channel arranged at the bottom of the magnetic separation device, the feeding channel is adapted to the size of the feeding port, an installation layer is provided below the feeding channel, the installation layer is arranged between the furnace body and the pretreatment unit, a sealing plate is rotatably provided on the top of the installation layer, and a stirring unit is provided at the bottom of the installation layer.

[0008] Furthermore, the stirring unit comprises a gear ring rotatably mounted in the mounting layer and a plurality of stirring rods fixedly connected to the bottom of the gear ring, and a plurality of stirring rods for increasing the contact area with the stirring object are fixedly mounted on the stirring rod.

[0009] Furthermore, the sealing plate is provided with teeth, the teeth are meshedly connected with a first gear rotatably mounted on the mounting layer, and the mounting layer is fixedly connected with a first motor for driving the first gear to rotate.

[0010] Furthermore, a second gear is meshingly connected to the gear ring, and the second gear is rotatably mounted on the mounting layer, and a second motor for driving the second gear to rotate is fixedly connected to the mounting layer.

[0011] Furthermore, a ceramic filter plate for filtering impurities during discharge is fixedly installed at the discharge port.

[0012] Furthermore, the furnace rack is provided with a heating device for increasing the furnace body temperature during smelting, the furnace rack is provided with an air inlet for introducing inert protective gas into the furnace body during smelting, and the furnace body is provided with a temperature monitoring device for monitoring the furnace body temperature during smelting.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the aluminum alloy waste purification and smelting device provided by the utility model can magnetically separate the aluminum alloy waste before entering the melting furnace to remove a large amount of magnetic impurities, thereby improving the purity of the smelted aluminum alloy. In addition, through the setting of the stirring rod and the stirring rod, the aluminum alloys at different positions can fully contact with the hot air during the heating process, ensuring that the aluminum alloys in the furnace can basically reach the melting point at the same time, reducing the time required for heating the furnace body, and reducing energy loss and the cost invested by the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a bottom view of the three-dimensional structure of an embodiment of the utility model.

[0017] Figure 3 The figure is a schematic structural diagram of a furnace body according to an embodiment of the present invention.

[0018] Figure 4 The figure is a schematic structural diagram of a stirring unit according to an embodiment of the present invention.

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] Figure 6 This is an exploded schematic diagram of an embodiment of the utility model.

[0021] In the figure:

[0022] 1. furnace frame, 11. furnace body, 111. air inlet, 112. heating device, 113. temperature monitoring device, 12. feeding port, 13. discharging port, 131. ceramic filter plate, 14. mounting layer;

[0023] 2. pretreatment unit, 21. magnetic separation device, 22. feeding channel, 23. sealing plate, 24. teeth, 25. first gear, 26. first motor;

[0024] 3. stirring unit, 31. gear ring, 32. stirring rod, 33. stirring rod, 34. second gear, 35. second motor. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 .

[0027] The utility model discloses an aluminum alloy waste purification and smelting device, comprising a furnace frame 1 and a furnace body 11 arranged in the furnace frame 1, a feeding port 12 is arranged on the top of the furnace frame 1, a discharging port 13 is arranged on the bottom of the furnace frame 1, a pretreatment unit 2 is arranged above the feeding port 12, the pretreatment unit 2 comprises a magnetic separation device 21 and a feeding channel 22 arranged at the bottom of the magnetic separation device 21, the feeding channel 22 is adapted to the size of the feeding port 12, a mounting layer 14 is arranged below the feeding channel 22, the mounting layer 14 is arranged between the furnace body 11 and the pretreatment unit 2, a sealing plate 23 is rotatably arranged on the top of the mounting layer 14, and a stirring unit 3 is arranged at the bottom of the mounting layer 14.

[0028] It should be noted that the aluminum alloy put into the magnetic separation device 21 is aluminum alloy fragments that have been crushed. Since most aluminum alloys cannot be magnetically attracted, the magnetic impurities can be separated by the magnetic separation device 21 to improve the purity of the smelted aluminum alloy.

[0029] Specifically, the stirring unit 3 includes a gear ring 31 rotatably mounted in the mounting layer 14 and a plurality of stirring rods 32 fixedly connected to the bottom of the gear ring 31 , and a plurality of stirring rods 33 for increasing the contact area with the stirring object are fixedly mounted on the stirring rod 32 .

[0030] In the specific setting, the stirring rod 32 and the stirring rod 33 should be made of high-temperature resistant materials such as silicon carbide to ensure that they can work in the environment of 700-750°C required for the melting of aluminum alloy. In addition, sealing measures should be taken at the rotating connection between the stirring unit 3 and the mounting layer 14 to prevent high-temperature gas from entering the mounting layer 14 and causing damage to devices such as motors. Secondly, a heat insulation layer can be set at the bottom of the mounting layer 14 to further prevent damage to devices such as motors.

[0031] In addition, teeth 24 are provided on the sealing plate 23, and a first gear 25 rotatably mounted on the mounting layer 14 is meshedly connected to the teeth 24, and a first motor 26 for driving the first gear 25 to rotate is fixedly connected to the mounting layer 14. A second gear 34 is meshedly connected to the gear ring 31, and the second gear 34 is rotatably mounted on the mounting layer 14, and a second motor 35 for driving the second gear 34 to rotate is fixedly connected to the mounting layer 14.

[0032] That is to say, the first motor 26 is used to control the closing and opening of the feeding channel 22 by the sealing plate 23, and the second motor 35 is used to control the rotation of the stirring rod 32 and the stirring rod 33. During specific operation, the second motor 35 can be reversed at intervals to reverse the stirring rod 32, thereby further improving the stirring effect of the device.

[0033] Secondly, a ceramic filter plate 131 is fixedly installed at the discharge port 13 for filtering impurities during discharge. The purpose of using the ceramic filter plate is to filter the molten aluminum liquid to remove tiny impurities, so as to further improve the purification effect of the device.

[0034] Again, the furnace frame 1 is provided with a heating device 112 for increasing the temperature of the furnace body 11 during smelting, the furnace frame 1 is provided with an air inlet 111 for introducing inert protective gas into the furnace body 11 during smelting, and the furnace body 11 is provided with a temperature monitoring device 113 for monitoring the temperature of the furnace body 11 during smelting.

[0035] It should be noted that when smelting aluminum alloy, the aluminum liquid will absorb a certain amount of hydrogen, and it needs to be degassed by introducing inert gas to reduce pores and improve the purity of the aluminum liquid. Inert gas and nitrogen or argon can be selected.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A device for purifying and smelting aluminum alloy waste, comprising a furnace frame (1) and a furnace body (11) arranged in the furnace frame (1), characterized in that: A feeding port (12) is arranged at the top of the furnace frame (1), a discharge port (13) is arranged at the bottom of the furnace frame (1), a pretreatment unit (2) is arranged above the feeding port (12), the pretreatment unit (2) comprises a magnetic separation device (21) and a feeding channel (22) arranged at the bottom of the magnetic separation device (21), the feeding channel (22) is adapted to the size of the feeding port (12), a mounting layer (14) is arranged below the feeding channel (22), the mounting layer (14) is arranged between the furnace body (11) and the pretreatment unit (2), a sealing plate (23) is rotatably arranged at the top of the mounting layer (14), and a stirring unit (3) is arranged at the bottom of the mounting layer (14).

2. The aluminum alloy waste purification and smelting device according to claim 1, characterized in that: The stirring unit (3) comprises a toothed ring (31) rotatably mounted in the mounting layer (14) and a plurality of stirring rods (32) fixedly connected to the bottom of the toothed ring (31); a plurality of stirring rods (33) for increasing the contact area with the stirring object are fixedly mounted on the stirring rod (32).

3. The aluminum alloy waste purification and smelting device according to claim 1, characterized in that: The sealing plate (23) is provided with teeth (24), and the teeth (24) are meshingly connected with a first gear (25) rotatably mounted on the mounting layer (14), and the mounting layer (14) is fixedly connected with a first motor (26) for driving the first gear (25) to rotate.

4. The aluminum alloy waste purification and smelting device according to claim 2, characterized in that: The gear ring (31) is meshedly connected with a second gear (34), the second gear (34) is rotatably mounted on the mounting layer (14), and the mounting layer (14) is fixedly connected with a second motor (35) for driving the second gear (34) to rotate.

5. The aluminum alloy waste purification and smelting device according to claim 1, characterized in that: A ceramic filter plate (131) is fixedly installed at the discharge port (13) for filtering impurities during discharge.

6. The aluminum alloy waste purification and smelting device according to claim 1, characterized in that: The furnace frame (1) is provided with a heating device (112) for increasing the temperature of the furnace body (11) during smelting, the furnace frame (1) is provided with an air inlet (111) for introducing an inert protective gas into the furnace body (11) during smelting, and the furnace body (11) is provided with a temperature monitoring device (113) for monitoring the temperature of the furnace body (11) during smelting.

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