Water-free and oxygen-free casting device

Abstract

The utility model discloses a water-free and oxygen-free casting device which comprises a casting chamber, a feeding pipe installed at the top of the casting chamber, a reacting furnace installed at the lower end of the feeding pipe, a mold installed on one side of the reacting furnace, an air return opening formed in the left side of the casting chamber, and a ventilation pipeline connected to the lower portion of the air return opening and leading to a draught fan and a purification column. The purification column is filled with a molecular sieve and a copper catalyst, and a ventilation pipeline from the purification column returns to the casting chamber through an air inlet in the right side of the casting chamber. Compared with the prior art, due to the fact that vacuum protection is adopted in the ingot casting process, an oxidation film is prevented from being generated in the metal ingot casting process, the process is safe and controllable, the automation degree is high, operation is convenient, the metal direct recovery rate is high, and pollution to the environment is avoided.

Description

Technical Field

[0001] The utility model relates to a water-free and oxygen-free casting device, belonging to the technical field of metal smelting. Background Art

[0002] In the process of non-ferrous metal smelting, the refined molten metal needs to be cast into metal ingots that meet national standards. In actual industrial production, disc ingot casting machines or linear ingot casting machines are mostly used. During the pouring process, the high-temperature molten metal will form an oxide film due to contact with the air. In order to ensure the appearance quality of the metal ingot, the surface oxide layer needs to be removed before the molten metal crystallizes after pouring. At present, most companies complete the slag removal work manually under high temperature and high labor intensity, and there is a safety hazard of high-temperature molten metal splashing and scalding the staff. At the same time, the slag removal process entrains the metal raw liquid, reducing the direct metal recovery rate of the ingot casting process, especially for more expensive metals, which directly causes large economic losses.

[0003] Therefore, it is necessary to provide a new casting method to solve the above-mentioned technical problems. Summary of the invention

[0004] The technical problem solved by the utility model is to provide a water-free and oxygen-free casting device. The technology adopts water-free and oxygen-free atmosphere protection for the ingot casting process to prevent the generation of oxide film during the metal ingot casting process. The process is safe and controllable, with a high degree of automation and easy operation.

[0005] In order to solve the above technical problems, the utility model provides an anhydrous and oxygen-free casting device comprising: a casting chamber, a feed pipe installed on the top of the casting chamber, a reaction furnace installed at the lower end of the feed pipe, a mold installed on one side of the reaction furnace, a return air port on the left side of the casting chamber, a ventilation duct connected to a fan and a purification column below the return air port, the purification column is filled with molecular sieves and copper catalysts, and the ventilation duct coming out of the purification column returns to the casting chamber via the air inlet on the right side of the casting chamber.

[0006] The device is used as follows: turn on the fan before use, and the air in the casting room flows through the purification column from the return air port. The molecular sieve and copper catalyst in the purification column can absorb moisture and oxygen in the air, and the filtered air returns to the casting room through the pipeline through the air inlet. This cycle is repeated to maintain a water-free and oxygen-free environment in the casting room. Then open the feed pipe, start the reactor, pour the melted raw materials into the mold for shaping, and discharge the materials after the temperature drops.

[0007] Furthermore, air filters are installed at the air inlet and air return outlet of the casting chamber.

[0008] Furthermore, the top of the purification column is a detachable device to facilitate the replacement of filter media.

[0009] The utility model has the beneficial effects of adopting vacuum protection in the ingot casting process to prevent the generation of oxide film in the metal ingot casting process, the process is safe and controllable, the degree of automation is high, the operation is convenient, the metal direct recovery rate is high, and there is no pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the figure: 1. casting chamber, 2. feeding pipe, 3. reaction furnace, 4. mold, 5. return air port, 6. air inlet, 7. fan, 8 purification column. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] See also Figure 1 A water-free and oxygen-free casting device comprises: a casting chamber 1, a feed pipe 2 is installed on the top of the casting chamber 1, a reaction furnace 3 is installed at the lower end of the feed pipe 2, a mold 4 is installed on one side of the reaction furnace 3, and a return air port 5 is provided on the left side of the casting chamber 1. A ventilation duct is connected below the return air port 5 to a fan 7 and a purification column 8. The purification column 8 is filled with molecular sieves and copper catalysts. The ventilation duct coming out of the purification column returns to the casting chamber 1 through the air inlet 6 on the right side of the casting chamber 1.

[0014] The device is used as follows: the fan 7 is turned on before use, and the air in the casting chamber 1 flows through the purification column 8 from the return air port 5. The molecular sieve and copper catalyst in the purification column 8 can absorb moisture and oxygen in the air, and the filtered air is then returned to the casting chamber 1 through the pipeline through the air inlet 6. This cycle is repeated to maintain a water-free and oxygen-free environment in the casting chamber 1. Then, the feed pipe 2 is opened, the reaction furnace 3 is turned on, and the melted raw materials are poured into the mold 4 for shaping, and the materials can be discharged after the temperature drops.

[0015] Furthermore, air filters are installed at the air inlet and air return outlet of the casting chamber.

[0016] Furthermore, the top of the purification column is a detachable device to facilitate the replacement of filter media.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-free and oxygen-free casting device, characterized in that: include: A casting chamber, a feed pipe is installed on the top of the casting chamber, a reaction furnace is installed at the lower end of the feed pipe, a mold is installed on one side of the reaction furnace, and a return air port is provided on the left side of the casting chamber. A ventilation duct is connected below the return air port to the fan and the purification column. The purification column is filled with molecular sieves and copper catalysts. The ventilation duct coming out of the purification column returns to the casting chamber via the air inlet on the right side of the casting chamber.

2. A water-free and oxygen-free casting device as claimed in claim 1, characterized in that: Air filters are installed at the air inlet and return air outlet of the casting room.

3. A water-free and oxygen-free casting device as claimed in claim 1, characterized in that: The top of the purification column is a detachable device to facilitate the replacement of filter media.

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