High-temperature electric arc melting furnace capable of rapidly removing valuable metal impurities

Abstract

The utility model discloses a high-temperature electric arc melting furnace capable of quickly removing valuable metal impurities, which comprises a melting furnace body and a plurality of electric arc bars, the plurality of electric arc bars are respectively arranged at the top of the melting furnace body, a furnace door is arranged at one side of the melting furnace body, a discharge pipe is arranged at the other side of the melting furnace body, two L-shaped frames are arranged at the top of the melting furnace body, and the two L-shaped frames are respectively connected with the furnace door and the discharge pipe. A supporting ring is arranged between the inner walls of the two L-shaped frames, a bottom cylinder is arranged in the supporting ring, and by arranging the supporting ring, the L-shaped frames, the bottom cylinder, a top cylinder, a compression-resistant ring, a filter disc and filter holes, valuable metal needing to be subjected to high-temperature electric arc smelting is sequentially fed into the smelting furnace body through the top cylinder; when the valuable metal is smelted, the valuable metal falls down to the surface of the filter disc under the action of gravity, and large-particle impurities are blocked by the plurality of filter holes through manual subsequent stirring, so that the impurities can be quickly pre-screened through the plurality of filter holes, and the purification effect before the valuable metal is smelted is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature electric arc melting furnaces, in particular to a high-temperature electric arc melting furnace capable of quickly removing valuable metal impurities. Background Art

[0002] High temperature arc melting furnace is an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000℃. For melting metals, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, and the equipment occupies a small area. It is suitable for the melting of high-quality alloy steel, and valuable metals include scrap metals, alloys or other metal mixtures.

[0003] High-temperature arc melting furnaces can mainly perform high-temperature melting of valuable metals, and operate by electrode arc. However, when melting valuable metals, workers often directly throw a batch of valuable metals into the melting furnace, and the valuable metals will be mixed with some particulate impurities, and the particulate impurities cannot be pre-screened in the melting furnace, so organic metals cannot be purified. In other words, traditional melting furnaces cannot quickly remove metal impurities. Therefore, it is particularly important to design a high-temperature arc melting furnace that can quickly remove valuable metal impurities. Utility Model Content

[0004] The utility model aims to provide a high-temperature arc melting furnace capable of quickly removing valuable metal impurities, so as to solve the problem in the background art that the particulate impurities cannot be pre-screened in the melting furnace, and thus the organic metal cannot be purified.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature electric arc melting furnace capable of quickly removing valuable metal impurities, comprising a melting furnace body and a plurality of electric arc rods, wherein the plurality of electric arc rods are respectively arranged on the top of the melting furnace body, a furnace door is arranged on one side of the melting furnace body, a discharge pipe is arranged on the other side of the melting furnace body, two L-shaped frames are arranged on the top of the melting furnace body, a support ring is arranged between the inner walls of the two L-shaped frames, a bottom cylinder is arranged inside the support ring, one end of the bottom cylinder is connected with the top end of the melting furnace body through insertion, a top cylinder is sleeved on one end of the bottom cylinder, a filter disc is arranged inside the top cylinder, and a plurality of filter holes are opened on the surface of the filter disc.

[0006] As a preferred technical solution of the utility model, auxiliary grooves are provided on both sides of the inner wall of the top tube, and a threaded rod is provided inside one of the auxiliary grooves.

[0007] As a preferred technical solution of the utility model, a fixing column is arranged inside another auxiliary groove, and a pushing block is sleeved on one end of the fixing column and the threaded rod.

[0008] As a preferred technical solution of the utility model, an anti-pressure ring is arranged between the inner walls of the two pushing blocks, and a filter disc is arranged inside the anti-pressure ring.

[0009] As a preferred technical solution of the present utility model, the plurality of filter holes are arranged at equal intervals.

[0010] As a preferred technical solution of the utility model, a rotating rod is rotatably installed on the top of the top cylinder, and one end of the rotating rod is fixedly connected to one end of the threaded rod.

[0011] As a preferred technical solution of the utility model, one of the pushing blocks is threadedly sleeved with one end of the threaded rod, and the other pushing block is movably sleeved with one end of the fixed column.

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

[0013] 1. The utility model discloses a high-temperature arc melting furnace which can quickly remove valuable metal impurities. By arranging a support ring, an L-shaped frame, a bottom cylinder, a top cylinder, a pressure-resistant ring, a filter disc and filter holes, valuable metals to be subjected to high-temperature arc melting are sequentially delivered to the interior of the melting furnace body through the top cylinder. The bottom cylinder and the top cylinder cooperate with each other, mainly for pre-screening impurities in the valuable metals. The valuable metals fall downward to the surface of the filter disc under the action of gravity. After subsequent artificial stirring, impurities with large particles will be blocked by a plurality of filter holes. Therefore, impurities can be quickly pre-screened through a plurality of filter holes, thereby achieving a purification effect before valuable metal smelting and improving the quality of subsequent valuable metal smelting.

[0014] 2. The utility model discloses a high-temperature arc melting furnace which can quickly remove valuable metal impurities. The utility model provides a fixed column, a threaded rod, a pushing block and a rotating rod. The threaded rod is driven to rotate synchronously by repeatedly rotating the rotating rod, and the pushing block sleeved on one end of the threaded rod moves up and down. Both sides of the pressure-resistant ring are supported by two pushing blocks respectively, so the two pushing blocks move up and down synchronously, thereby facilitating the adjustment of the position height of the filter disc. After the height of the filter disc is increased, the impurities screened on its surface can be cleaned out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 It is a partial exploded view of the utility model.

[0019] In the figure: 1. smelting furnace body; 2. arc rod; 3. furnace door; 4. discharge pipe; 5. support ring; 6. L-shaped frame; 7. bottom cylinder; 8. top cylinder; 9. fixing column; 10. threaded rod; 11. pushing block; 12. anti-pressure ring; 13. filter plate; 14. filter hole; 15. rotating rod; 16. auxiliary groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution for a high-temperature arc melting furnace that can quickly remove valuable metal impurities:

[0022] Embodiment 1:

[0023] like Figure 1-3 As shown, a high-temperature electric arc melting furnace capable of quickly removing valuable metal impurities comprises a melting furnace body 1 and a plurality of electric arc rods 2, wherein the plurality of electric arc rods 2 are respectively arranged at the top of the melting furnace body 1, a furnace door 3 is arranged at one side of the melting furnace body 1, a discharge pipe 4 is arranged at the other side of the melting furnace body 1, two L-shaped frames 6 are arranged at the top of the melting furnace body 1, a support ring 5 is arranged between the inner walls of the two L-shaped frames 6, a bottom cylinder 7 is arranged inside the support ring 5, one end of the bottom cylinder 7 is connected with the top end of the melting furnace body 1, a top cylinder 8 is sleeved on one end of the bottom cylinder 7, and the top cylinder 8 A filter disc 13 is arranged inside, and a plurality of filter holes 14 are opened on the surface of the filter disc 13. A fixing column 9 is arranged inside another auxiliary groove 16. The fixing column 9 and one end of the threaded rod 10 are sleeved with a pushing block 11. The valuable metals fall downward to the surface of the filter disc 13 under the action of gravity. After subsequent artificial stirring, large impurities will be blocked by the plurality of filter holes 14. Therefore, the impurities can be quickly pre-screened through the plurality of filter holes 14, thereby achieving the purification effect of the valuable metals before smelting and improving the quality of subsequent valuable metal smelting.

[0024] Embodiment 2:

[0025] Based on the first embodiment, Figure 1 and Figure 4 As shown, a rotating rod 15 is rotatably installed on the top of the top cylinder 8, one end of the rotating rod 15 is fixedly connected to one end of the threaded rod 10, one pushing block 11 is threadedly sleeved on one end of the threaded rod 10, and the other pushing block 11 is movably sleeved on one end of the fixed column 9. The utility model provides a high-temperature arc melting furnace that can quickly remove valuable metal impurities. By setting the fixed column 9, the threaded rod 10, the pushing block 11 and the rotating rod 15, repeatedly rotating the rotating rod 15 will drive the threaded rod 10 to rotate synchronously, and the pushing block 11 sleeved on one end of the threaded rod 10 will move up and down.

[0026] Working principle: Valuable metals include scrap metals, alloys and other metal mixtures. Electric arc furnaces use the high temperature generated by the electrode arc to melt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000℃. For melting valuable metals, electric arc furnaces have greater process flexibility than other steelmaking furnaces and can effectively remove sulfur and phosphorus impurities, because the temperature generated by the electrode arc of the electric arc furnace is above 3000℃, so sulfur and phosphorus can be removed;

[0027] The furnace temperature is easy to control, the equipment occupies a small area, and is suitable for the smelting of alloy steel. Valuable metals refer to other metals with recycling value in addition to the main metal in the raw materials for refining metals, and valuable metals include scrap metals. Therefore, a large amount of impurities will adhere to the outer surface of the metal. After the impurities fall into the interior of the smelting furnace body 1, they will affect the quality of subsequent arc smelting. Before smelting the valuable metals, the staff can sequentially deliver the valuable metals that need to be subjected to high-temperature arc smelting to the interior of the smelting furnace body 1 through the top cylinder 8. The mutual cooperation between the bottom cylinder 7 and the top cylinder 8 can mainly be used for the valuable metals. The impurities in the metal are pre-screened, and the valuable metals fall downward to the surface of the filter disc 13 under the action of gravity. After subsequent artificial stirring, the impurities with large particles will be blocked by a plurality of filter holes 14. Therefore, the impurities can be pre-screened quickly through a plurality of filter holes 14. The aperture size of the filter hole 14 is set to the volume size of the impurities to be filtered. The impurities filtered by this aperture will improve the quality of subsequent valuable metal smelting. The impurities can be processed subsequently, and the filter disc 13 will not be blocked. The valuable metals after the impurities are processed will continue to be directly guided to the inside of the smelting furnace body 1 through the bottom cylinder 7;

[0028] For subsequent smelting, molten steel will be injected into the smelting furnace body 1. The molten steel contains a certain amount of impurity elements. These impurities may react with the main metal and other impurities during the high-temperature smelting process, thereby changing their existence form and making them easier to separate. By adding molten steel, the impurity elements contained in it can be used to interact with other impurities in the melt, promote the removal and transformation of impurities, and improve the purity of the metal melt. In conjunction with the operation of multiple arc rods 2, valuable metals can be smelted at high temperature, achieving the purification effect of valuable metals before smelting, and improving the quality of subsequent valuable metal smelting;

[0029] Since the screening mechanism is located at the top of the smelting furnace body 1, and the internal smelting area of ​​the smelting furnace body 1 is located at the inner bottom, far away from the screening mechanism, and the staff will wear gloves made of high-temperature resistant material, so the rotating rod 15 can be rotated, and the staff can repeatedly rotate the rotating rod 15, which will drive the threaded rod 10 to rotate synchronously, and the pushing block 11 mounted on one end of the threaded rod 10 will move up and down, and the two sides of the pressure-resistant ring 12 are supported by two pushing blocks 11 respectively, so the two pushing blocks 11 will move up and down synchronously, so as to facilitate the adjustment of the position height of the filter disc 13, and the impurities screened on the surface of the filter disc 13 can be cleaned out after the height of the filter disc 13 is raised. An escalator is provided on one side of the smelting furnace body 1, and the valuable metals can be screened for impurities in batches.

[0030] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] Although the 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 high-temperature arc melting furnace capable of quickly removing valuable metal impurities, comprising a melting furnace body (1) and a plurality of arc rods (2), wherein the plurality of arc rods (2) are respectively arranged on the top of the melting furnace body (1), characterized in that: A furnace door (3) is provided on one side of the smelting furnace body (1), a discharge pipe (4) is provided on the other side of the smelting furnace body (1), two L-shaped frames (6) are provided on the top of the smelting furnace body (1), a support ring (5) is provided between the inner walls of the two L-shaped frames (6), a bottom cylinder (7) is provided inside the support ring (5), one end of the bottom cylinder (7) is connected with the top of the smelting furnace body (1), a top cylinder (8) is sleeved on one end of the bottom cylinder (7), a filter disc (13) is provided inside the top cylinder (8), and a plurality of filter holes (14) are provided on the surface of the filter disc (13).

2. A high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 1, characterized in that: Auxiliary grooves (16) are provided on both sides of the inner wall of the top cylinder (8), and a threaded rod (10) is arranged inside one of the auxiliary grooves (16).

3. A high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 2, characterized in that: A fixing column (9) is arranged inside the other auxiliary groove (16), and a pushing block (11) is sleeved on one end of the fixing column (9) and the threaded rod (10).

4. A high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 3, characterized in that: An anti-pressure ring (12) is arranged between the inner walls of the two pushing blocks (11), and a filter disc (13) is arranged inside the anti-pressure ring (12).

5. The high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 1, characterized in that: The plurality of filter holes (14) are arranged at equal intervals.

6. A high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 1, characterized in that: A rotating rod (15) is rotatably mounted on the top of the top cylinder (8), and one end of the rotating rod (15) is fixedly connected to one end of the threaded rod (10).

7. A high-temperature arc melting furnace capable of quickly removing valuable metal impurities according to claim 3, characterized in that: One of the pushing blocks (11) is threadedly sleeved on one end of the threaded rod (10), and the other pushing block (11) is movably sleeved on one end of the fixed column (9).

Images