Totally-closed submerged arc furnace equipment

Abstract

The utility model discloses totally-closed submerged arc furnace equipment which comprises a furnace body and a cover plate arranged on the furnace body, the cover plate is rotationally connected with the furnace body through a hinge, a first feeding pipe is arranged on the furnace body, a second feeding pipe is connected to the first feeding pipe, a feeding hopper is arranged on the top of the second feeding pipe, and a discharging hopper is arranged on the top of the second feeding pipe. The second feeding pipe is provided with a sealing box, the sealing box is internally provided with a sealing mechanism, the sealing mechanism comprises a sealing plate used for blocking the second feeding pipe, the sealing plate is driven to move by manually pushing the push plate, the sealing plate is inserted into the lower portion of the pipe fitting, the arc-shaped sleeve part extrudes the spring to be compressed in the insertion process, and after insertion, the sealing plate is sealed by the sealing box. And the compressed spring pushes the pipe fitting and the arc-shaped sleeve piece to extrude the sealing plate to abut against the second feeding pipe through the self-resetting capacity, so that the second feeding pipe is sealed, and the situation that heat in the submerged arc furnace is lost from the feeding position, energy waste is caused, and the smelting effect is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ore-fired furnace equipment, in particular to a fully enclosed ore-fired furnace equipment. Background Art

[0002] The submerged arc furnace is also called an arc furnace or a resistance furnace. It is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents and solvents. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloys and other ferroalloys. It is an important industrial raw material in the metallurgical industry and a chemical raw material such as calcium carbide. Its working characteristics are the use of carbon or magnesium refractory materials as furnace linings and the use of self-training electrodes. In order to avoid heat loss in the submerged arc furnace, the submerged arc furnace is usually set up in a closed manner. The sealing effect of the existing submerged arc furnace equipment at the feed point is poor, which leads to heat loss in the submerged arc furnace, causing energy waste and affecting the smelting effect. For this reason, we have designed a fully enclosed submerged arc furnace equipment. Summary of the invention

[0003] The utility model aims to solve the problem that the sealing effect of the feeding part of the submerged arc furnace equipment in the prior art is poor, resulting in the heat loss in the submerged arc furnace and causing energy waste, and proposes a fully enclosed submerged arc furnace equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fully enclosed ore-fired furnace device comprises a furnace body and a cover plate arranged on the furnace body, wherein the cover plate is rotatably connected to the furnace body via a hinge, a first feed pipe is arranged on the furnace body, a second feed pipe is connected to the first feed pipe, a feed hopper is arranged on the top of the second feed pipe, a sealing box is arranged on the second feed pipe, a sealing mechanism is arranged in the sealing box, and the sealing mechanism comprises a sealing plate for sealing the second feed pipe.

[0006] Preferably, a material discharge pipe and an air discharge pipe are provided on the furnace body, and valves are provided on the material discharge pipe and the air discharge pipe.

[0007] Preferably, a plurality of electrodes are provided on the top of the furnace body, and a support is provided on the bottom of the furnace body.

[0008] Preferably, a threaded rod is provided on the cover plate, a threaded groove is provided on the side wall of the furnace body, and the threaded rod is threadedly connected to the threaded groove.

[0009] Preferably, the sealing mechanism further comprises:

[0010] A pipe fitting, wherein a slide groove is provided in the side wall of the second feed pipe, and the pipe fitting is slidably connected to the slide groove via a spring;

[0011] An arc-shaped kit is fixedly connected to the pipe fitting.

[0012] Preferably, a push plate is slidably connected inside the sealing box, and one end of the push plate slides through the side wall of the sealing box, and the push plate is fixedly connected to the sealing plate.

[0013] The beneficial effects of the utility model are:

[0014] The utility model drives the sealing plate to move by manually pushing the push plate, and the sealing plate is inserted under the pipe fitting. During the insertion process, the arc-shaped kit squeezes the spring to be compressed. After the insertion, the compressed spring pushes the pipe fitting and the arc-shaped kit to squeeze the sealing plate close to the second feed pipe through its own reset ability, so as to close the second feed pipe, thereby preventing the heat in the ore-heat furnace from being lost from the feed point, causing energy waste and affecting the smelting effect.

[0015] The utility model adopts a threaded rod inserted into a threaded groove on the furnace body, and the threaded rod is rotated to drive the cover plate to be close to the furnace body, so as to ensure the sealing of the ore-heat furnace to prevent the heat in the furnace body from being lost and affecting the smelting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a fully enclosed ore-fired furnace device proposed by the utility model;

[0017] Figure 2 This is a front cross-sectional view of a fully enclosed ore-fired furnace device proposed by the utility model;

[0018] Figure 3 This is a left side cross-sectional view of a fully enclosed ore-fired furnace device proposed by the utility model.

[0019] In the figure: 1. furnace body; 2. bracket; 3. cover plate; 4. discharge pipe; 5. air outlet pipe; 6. valve; 7. electrode; 8. threaded rod; 9. first feed pipe; 10. second feed pipe; 11. feed hopper; 12. sealing box; 13. push plate; 14. sealing plate; 15. arc kit; 16. slide groove; 17. pipe fitting; 18. spring. DETAILED DESCRIPTION

[0020] Reference Figure 1-Figure 3 A fully enclosed ore-fired furnace device comprises a furnace body 1 and a cover plate 3 arranged on the furnace body 1, the cover plate 3 is rotatably connected to the furnace body 1 through a hinge, a first feed pipe 9 is arranged on the furnace body 1, a second feed pipe 10 is connected to the first feed pipe 9, a feed hopper 11 is arranged on the top of the second feed pipe 10, a sealing box 12 is arranged on the second feed pipe 10, a sealing mechanism is arranged in the sealing box 12, and the sealing mechanism comprises a sealing plate 14 for sealing the second feed pipe 10.

[0021] Reference Figure 1As shown, a discharge pipe 4 and an air outlet pipe 5 are provided on the furnace body 1, and valves 6 are provided on the discharge pipe 4 and the air outlet pipe 5. The discharge pipe 4 and the air outlet pipe 5 are unobstructed through the valves 6. The discharge pipe 4 and the air outlet pipe 5 are closed to ensure the sealing of the furnace body 1 and avoid heat loss. After smelting, the discharge pipe 4 and the air outlet pipe 5 are opened by the valve 6, so that the waste and gas in the furnace body 1 are discharged from the discharge pipe 4 and the air outlet pipe 5 respectively. A plurality of electrodes 7 are provided on the top of the furnace body 1, and the furnace body 1 is heated by the electrodes 7. A bracket 2 is provided at the bottom of the furnace body 1, and the bracket 2 includes a fixedly connected support ring and a plurality of support rods to place the furnace body 1.

[0022] Reference Figure 1 and Figure 3 As shown, a threaded rod 8 is provided on the cover plate 3, and a threaded groove is provided on the side wall of the furnace body 1. The threaded rod 8 is threadedly connected to the threaded groove. The opening and closing of the furnace body 1 is controlled by the cover plate 3. The cover plate 3 is opened to facilitate cleaning of the furnace body 1. The cover plate 3 is closed and fixed to the furnace body 1 by the threaded rod 8. The threaded rod 8 is inserted into the threaded groove on the furnace body 1. The threaded rod 8 is twisted to drive the cover plate 3 to be close to the furnace body 1, so as to ensure the sealing of the ore-heat furnace to prevent the heat in the furnace body 1 from being lost from the cover plate 3 and affecting the smelting effect.

[0023] Reference Figure 1 and Figure 2 As shown, the sealing mechanism also includes a pipe fitting 17, a slide groove 16 is opened in the side wall of the second feed pipe 10, and the pipe fitting 17 is slidably connected to the slide groove 16 through a spring 18; the sealing mechanism also includes an arc-shaped kit 15, and the arc-shaped kit 15 is fixedly connected to the pipe fitting 17. When the sealing plate 14 is not inserted, the spring 18 squeezes the arc-shaped kit 15 and fits tightly against the second feed pipe 10, so that the second feed pipe 10 is connected for feeding. Compared with the traditional method of adding a valve to control the pipeline closure, the valve is easy to block large solid materials. It should be noted that the end of the sealing plate 14 is inclined and the edge of the arc-shaped kit 15 is arc-shaped. The purpose is that when the sealing plate 14 is pushed to close the second feed pipe 10, the oblique side of the sealing plate 14 is close to the arc edge of the arc-shaped kit 15, which is convenient for inserting the sealing plate 14 into the bottom of the arc-shaped kit 15.

[0024] A push plate 13 is slidably connected inside the sealing box 12, and one end of the push plate 13 slides through the side wall of the sealing box 12. The push plate 13 is fixedly connected to the sealing plate 14. When in use, the push plate 13 is manually pushed to drive the sealing plate 14 to move. The sealing plate 14 is inserted under the pipe fitting 17. During the insertion process, the arc-shaped kit 15 squeezes the spring 18 to be compressed, and the sleeve 17 is retracted into the slide groove 16. The compressed spring 18 pushes the pipe fitting 17 and the arc-shaped kit 15 to squeeze the sealing plate 14 close to the second feed pipe 10 through its own reset ability, so as to close the second feed pipe 10, thereby preventing the heat in the electric arc furnace from being lost from the feed point, causing energy waste and affecting the smelting effect.

[0025] The working principle of the utility model is as follows:

[0026] The push plate 13 is manually pushed to drive the sealing plate 14 to move, and the sealing plate 14 is inserted under the pipe fitting 17. During the insertion process, the arc sleeve 15 squeezes the spring 18 to be compressed. The compressed spring 18 pushes the pipe fitting 17 and the arc sleeve 15 to squeeze the sealing plate 14 close to the second feed pipe 10 through its own reset ability, thereby closing the second feed pipe 10.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully enclosed ore-fired furnace device, comprising a furnace body (1) and a cover plate (3) arranged on the furnace body (1), characterized in that: The cover plate (3) is rotatably connected to the furnace body (1) via a hinge; a first feed pipe (9) is provided on the furnace body (1); a second feed pipe (10) is connected to the first feed pipe (9); a feed hopper (11) is provided at the top of the second feed pipe (10); a sealing box (12) is provided on the second feed pipe (10); a sealing mechanism is provided inside the sealing box (12); the sealing mechanism comprises a sealing plate (14) for sealing the second feed pipe (10).

2. A fully enclosed submerged arc furnace equipment according to claim 1, characterized in that: The furnace body (1) is provided with a material discharge pipe (4) and an air discharge pipe (5), and both the material discharge pipe (4) and the air discharge pipe (5) are provided with valves (6).

3. A fully enclosed ore-fired furnace device according to claim 1, characterized in that: A plurality of electrodes (7) are provided on the top of the furnace body (1), and a support (2) is provided on the bottom of the furnace body (1).

4. A fully enclosed submerged arc furnace equipment according to claim 1, characterized in that: The cover plate (3) is provided with a threaded rod (8), a threaded groove is provided on the side wall of the furnace body (1), and the threaded rod (8) is threadedly connected to the threaded groove.

5. A fully enclosed submerged arc furnace equipment according to claim 1, characterized in that: The sealing mechanism also includes: A pipe fitting (17), wherein a slide groove (16) is provided in a side wall of the second feed pipe (10), and the pipe fitting (17) is slidably connected to the slide groove (16) via a spring (18); An arc-shaped sleeve (15), wherein the arc-shaped sleeve (15) is fixedly connected to the pipe fitting (17).

6. A fully enclosed ore-fired furnace device according to claim 1, characterized in that: A push plate (13) is slidably connected inside the sealing box (12), and one end of the push plate (13) slides through the side wall of the sealing box (12), and the push plate (13) is fixedly connected to the sealing plate (14).

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