Metal separation device

Abstract

The utility model provides a metal separation device, which comprises a heating furnace, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe which are sequentially connected through a pipeline, a cooling water pipe is arranged in the condenser; the condenser is further provided with an argon inlet, and the condenser is filled with argon. And the vacuum pump extracts the gaseous metal from the heating furnace and enters the condenser. As the boiling points of aluminum, magnesium and zinc are different, in the heating process of the heating furnace, waste aluminum is firstly heated to be in a liquid state and then sequentially reaches the boiling points of zinc and magnesium, so that zinc and magnesium are sequentially gasified and overflowed and enter a condenser to be condensed and collected, and separation of zinc, magnesium and aluminum is completed. When zinc and magnesium are in a gaseous state, bubbles can be formed in the liquid waste aluminum, rise and finally are separated from the liquid waste aluminum; and in the process, the liquid waste aluminum cannot block overflowing of gaseous zinc and magnesium, so that the metal separation efficiency of the waste aluminum is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal separation, in particular to a metal separation device. Background Art

[0002] When producing aluminum alloy, waste aluminum will be generated, and these waste aluminum contain magnesium and zinc elements. To extract waste aluminum into high-purity aluminum ingots, it is necessary to extract magnesium and zinc from the waste aluminum and realize the reuse of magnesium and zinc.

[0003] The conventional method is to extract by using the different melting points of metals. When extracting by this method, the waste aluminum is in a state of coexistence of solid and liquid, and the liquid flow extraction will be hindered by the solid, resulting in a low extraction rate.

[0004] Therefore, how to improve the extraction efficiency of magnesium and zinc has become an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] To solve the technical problems in the background art, the utility model discloses a metal separation device.

[0006] The utility model provides a metal separation device, including those connected in sequence through pipelines:

[0007] A heating furnace, used to heat the waste aluminum and heat the metal to a gaseous state;

[0008] A condenser, inside which a cooling water pipe is arranged; the condenser is also provided with an argon inlet to fill argon into the condenser;

[0009] A vacuum pump, which pumps the gaseous metal out of the heating furnace and into the condenser.

[0010] Circulating tap water is arranged in the cooling water pipe to cool the gaseous metal in the condenser; argon is used to remove the air in the condenser to avoid oxidation of the gaseous metal in the condenser. At the same time, the argon has a low temperature and can also play a role in cooling the gaseous metal; furthermore, the argon fills the condenser, which can improve the condensation efficiency of the gaseous metal.

[0011] Due to the different boiling points of aluminum, magnesium, and zinc, when the heating furnace is heating up, the waste aluminum will be first heated to a liquid state, and then reach the boiling points of zinc and magnesium in sequence, so that zinc and magnesium are vaporized and overflowed in sequence and enter the condenser for condensation and collection, thus completing the separation of zinc, magnesium, and aluminum. When zinc and magnesium are in a gaseous state, they will form bubbles in the liquid waste aluminum and rise, and finally break away from the liquid waste aluminum; during this process, the liquid waste aluminum will not block the overflow of gaseous zinc and magnesium, thereby improving the metal separation efficiency of the waste aluminum.

[0012] The position of the argon inlet directly affects the air removal efficiency in the condenser. Based on this, a further design is that the argon inlet is located at the bottom of the condenser.

[0013] To improve the cooling efficiency of the cooling water pipe, a further design is that the cooling water pipe is arranged in a spiral shape.

[0014] Since the gaseous metal is likely to adhere to the inner wall of the condenser after condensation and is difficult to remove, based on this, a further improvement lies in that an annular argon gas pipe is provided at the top position of the condenser; a plurality of downward jet holes are provided on the argon gas pipe, and the number thereof is set such that when the argon gas is ejected downward from the jet holes, it covers the inner wall of the condenser. With this arrangement, an argon gas layer will be formed on the inner wall of the condenser, thereby preventing the metal from adhering to the inner wall of the condenser.

[0015] Since the condensed metal will also adhere to the cooling water pipe, based on this, a further improvement lies in that an acoustic soot blower is also installed at the top of the condenser.

[0016] To extend the flow path of the gaseous metal in the condenser and improve the condensation effect, a further improvement lies in that the condenser is provided with a gaseous metal inlet, which is connected to the top of the heating furnace through a pipeline; the gaseous metal inlet is located at the bottom position of the condenser.

[0017] Under the negative pressure of the vacuum pump, the argon gas blown out from the argon gas pipe is easily directly sucked away by the vacuum pump and is difficult to achieve the purpose of forming an argon gas layer on the inner wall of the condenser. Based on this, a further design is that the air pressure in the argon gas pipe is more than twice the negative pressure generated by the vacuum pump. Brief Description of the Drawings

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 is a schematic structural view of the present utility model;

[0020] Figure 2 is Figure 1 an enlarged view of part A in

[0021] In the figure: 1, heating furnace; 2, condenser; 3, cooling water pipe; 4, argon gas pipe; 5, vacuum pump; 6, acoustic soot blower; 7, first pipeline; 8, second pipeline; 11, gaseous metal outlet; 21, argon gas inlet; 22, gaseous metal inlet; 23, waste gas outlet; 41, jet hole. Detailed Description of the Specific Embodiment

[0022] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] Such as Figure 1As shown in the figure, the utility model discloses a metal separation device, which includes a heating furnace 1, a condenser 2, a vacuum pump 5, a first pipeline 7 and a second pipeline 8.

[0024] The heating furnace 1 is used to heat waste aluminum and heat the metal to a gaseous state. A gaseous metal outlet 11 is arranged at the top of the heating furnace 1.

[0025] A cooling water pipe 3 is arranged inside the condenser 2, and tap water circulating inside it enters from the bottom and exits from the top for cooling. The cooling water pipe 3 is spiral-shaped to increase the length of the cooling water pipe 3 and improve the cooling effect. A gaseous metal inlet 22 is arranged at the lower end of the condenser 2. The inlet of the first pipeline 7 is connected to the gaseous metal outlet 11, and the outlet is connected to the gaseous metal inlet 22.

[0026] An argon inlet 21 is also arranged at the lower end of the condenser 2 to fill argon into the condenser 2, remove the air inside the condenser 2, and avoid oxidation of the gaseous metal after it enters the condenser 2.

[0027] As Figure 2 shown, a horizontally arranged annular argon pipe 4 is installed at the top of the inner cavity of the condenser 2. A plurality of evenly distributed air injection holes 41 are arranged on the argon pipe 4, and the air injection holes 41 face downwards. The number of them is set such that when argon is ejected downward from the air injection holes 41, it covers the inner wall of the condenser 2. With such a setting, an argon layer will be formed on the inner wall of the condenser 2, thus avoiding metal from adhering to the inner wall of the condenser 2.

[0028] An acoustic soot blower 6 is also installed at the top of the condenser 2, which generates sound waves to make the metal adhering to the cooling water pipe 3 fall off.

[0029] An exhaust gas outlet 23 is arranged at the top of the condenser 2. The inlet of the second pipeline 8 is connected to the exhaust gas outlet 23, and the outlet of the second pipeline 8 is connected to the suction port of the vacuum pump 5. In this way, when the vacuum pump 5 is started, the gaseous metal in the heating furnace 1 will be pumped out and enter the condenser 2 for condensation and collection. The exhaust gas enters the second pipeline 8 and is discharged from the exhaust port of the vacuum pump 5.

[0030] The air pressure inside the argon pipe 4 is more than twice the negative pressure generated by the vacuum pump 5. With such a setting, it is avoided that the argon ejected from the argon pipe 4 is easily directly sucked away by the vacuum pump 5 and it is difficult to form an argon layer on the inner wall of the condenser 2.

[0031] Before the utility model is started, the argon inlet 21 is opened to remove the air in the condenser 2, and at this time the argon pipe 4 is closed. When the gaseous metal starts to enter the condenser 2, the argon pipe 4 is opened to eject argon, and this argon will fill the inside of the condenser 2, so the argon inlet 21 can be closed.

[0032] The cooling water pipe 3 is provided with circulating tap water for cooling the gaseous metal in the condenser 2; argon is used to remove the air in the condenser 2 to prevent the gaseous metal in the condenser 2 from oxidizing. At the same time, the low temperature of argon can also cool the gaseous metal; moreover, argon fills the condenser 2, which can improve the condensation efficiency of the gaseous metal.

[0033] Due to the different boiling points of aluminum, magnesium, and zinc, when the heating furnace 1 is heating up, the waste aluminum will be first heated to the liquid state, and then reach the boiling points of zinc and magnesium in sequence, so that zinc and magnesium are vaporized and overflow in sequence and enter the condenser 2 for condensation and collection, thus completing the separation of zinc, magnesium, and aluminum. When zinc and magnesium are in the gaseous state, bubbles will be formed in the liquid waste aluminum and rise, and finally break away from the liquid waste aluminum; during this process, the liquid waste aluminum will not block the overflow of gaseous zinc and magnesium, thereby improving the metal separation efficiency of the waste aluminum.

[0034] Taking the above ideal embodiment of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A metal separation device, characterized in that: Including connected in sequence by pipelines: A heating furnace (1) for heating the scrap aluminum and heating the metal to a gaseous state; A condenser (2) is provided with a cooling water pipe (3) inside; the condenser (2) is also provided with an argon gas inlet (21) for filling the condenser (2) with argon gas; The vacuum pump (5) draws the gaseous metal out of the heating furnace (1) and into the condenser (2).

2. A metal separation device according to claim 1, characterized in that: The argon gas inlet (21) is located at the bottom of the condenser (2).

3. A metal separation device according to claim 1, characterized in that: The cooling water pipe (3) is arranged in a spiral shape.

4. A metal separation device according to claim 1, characterized in that: An annular argon gas pipe (4) is provided at the top of the condenser (2); The argon gas pipe (4) is provided with a plurality of downward-facing jet holes (41), the number of which is set such that when the argon gas is sprayed downward from the jet holes (41), the inner wall of the condenser (2) is covered.

5. A metal separation device according to claim 4, characterized in that: A sonic soot blower (6) is also installed on the top of the condenser (2).

6. A metal separation device according to claim 1, characterized in that: The condenser (2) is provided with a gaseous metal inlet (22) and is connected to the top of the heating furnace (1) through a pipeline; The gaseous metal inlet (22) is located at the bottom of the condenser (2).

7. A metal separation device according to claim 4, characterized in that: The gas pressure in the argon gas pipe (4) is more than twice the negative pressure generated by the vacuum pump (5).

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