Energy-saving metallurgical electric arc furnace

Abstract

The utility model relates to the technical field of metallurgy, in particular to an energy-saving metallurgical electric arc furnace which comprises a base, two supporting plates are fixedly connected to the symmetrical positions of the upper end face of the base, an electric arc furnace body is jointly and rotationally connected between the two supporting plates, and two fixing plates are fixedly connected to the side face of the electric arc furnace body. A cover plate is jointly and rotationally connected between the two fixing plates, a pressure release valve is fixedly connected to the upper end face of the cover plate, a sealing block is slidably connected into the pressure release valve, a discharging pipe is fixedly connected to the side face of the electric arc furnace body, and the left end of the discharging pipe communicates with the interior of the electric arc furnace body. A high-temperature-resistant electromagnetic valve is mounted on the surface of the discharging pipe, and a groove is formed in the upper end face of the base; according to the electric arc furnace, the electric arc furnace body can be driven to incline through the hydraulic rod, raw materials in the electric arc furnace body can be completely discharged through the discharging pipe, manual operation of workers is not needed, and the workload of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to an energy-saving metallurgical arc furnace. Background Art

[0002] Patent No. CN204678871U discloses an electric arc furnace. The utility model has a reasonable structural design, good melting effect, stable structure and low manufacturing cost.

[0003] In the above-mentioned existing electric arc furnace, the furnace cover is arranged at the mouth of the furnace body, and the electrode extends into the furnace body from the furnace cover; a feed port is provided on one side of the furnace body, and a slag port and a discharge port are provided on the other side of the furnace body; the furnace cover includes a support frame and a refractory cover body; the support frame includes a bottom ring, a top cover and a connecting beam; the interior of the top cover is hollow; a water inlet pipe and a water outlet pipe are fixed on the furnace cover, both of which are connected to the interior of the top cover, but the device discharges materials through the discharge port on the side of the furnace body, and the staff needs to manually tilt the furnace body to pour all the raw materials in the furnace body, which increases the workload of the staff.

[0004] In order to solve the above problems, the utility model proposes an energy-saving metallurgical arc furnace. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an energy-saving metallurgical electric arc furnace to solve the technical problems in the prior art: "the furnace cover is arranged at the mouth of the furnace body, and the electrode extends into the furnace body from the furnace cover; a feed port is provided on one side of the furnace body, and a slag port and a discharge port are provided on the other side of the furnace body; the furnace cover includes a support frame and a refractory cover body; the support frame includes a bottom ring, a top cover and a connecting beam; the interior of the top cover is hollow; a water inlet pipe and a water outlet pipe are fixed on the furnace cover and are both connected to the interior of the top cover, but the device discharges materials through the discharge port on the side of the furnace body, and the staff needs to manually tilt the furnace body to pour all the raw materials in the furnace body, which increases the workload of the staff."

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: it includes a base, two support plates are fixedly connected at symmetrical positions on the upper end face of the base, an arc furnace body is rotatably connected between the two support plates, two fixed plates are fixedly connected to the side face of the arc furnace body, a cover plate is rotatably connected between the two fixed plates, a pressure relief valve is fixedly connected to the upper end face of the cover plate, a sealing block is slidably connected inside the pressure relief valve, a discharge pipe is fixedly connected to the side face of the arc furnace body, the left end of the discharge pipe is connected to the inside of the arc furnace body, a high-temperature resistant solenoid valve is installed on the surface of the discharge pipe, a groove is provided on the upper end face of the base, the inner wall of the groove is rotatably connected to a rotating block with the lower end face of the arc furnace body, a hydraulic rod is fixedly connected between the two rotating blocks, and an electrode rod is installed on the lower end face of the cover plate.

[0007] As a preferred technical solution of the present invention, the sides of the electric arc furnace body and the cover plate are fixedly connected with fixing blocks, and threaded rods are commonly threadedly connected in the two fixing blocks.

[0008] As a preferred technical solution of the present invention, the upper end surface of the sealing block is fixedly connected to a spring, and the top end of the spring is fixedly connected to the inner wall of the pressure relief valve.

[0009] As a preferred technical solution of the present invention, the lower end surface of the cover plate overlaps the upper end surface of the electric arc furnace body, and the lower end surface of the pressure relief valve is connected to the electric arc furnace body.

[0010] As a preferred technical solution of the present invention, a pressure gauge is fixedly connected to the upper end surface of the cover plate, and a mold is placed in the groove.

[0011] As a preferred technical solution of the present invention, the bottom of the inner wall of the electric arc furnace body is configured to be arc-shaped.

[0012] The utility model provides an energy-saving metallurgical arc furnace, which has the following beneficial effects:

[0013] The electric arc furnace body can be tilted by the hydraulic rod, so that all the raw materials inside the electric arc furnace body can be discharged through the discharge pipe, without the need for manual operation by the staff, thus reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the hydraulic rod proposed in the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the groove proposed in the utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the electric arc furnace body proposed in the present invention;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the pressure relief valve proposed in the utility model;

[0019] Figure 6 The utility model provides a structural diagram of the sealing block.

[0020] In the figure: 1 base, 2 groove, 3 rotating block, 4 hydraulic rod, 5 mold, 6 support plate, 7 arc furnace body, 8 discharge pipe, 9 high temperature resistant solenoid valve, 10 fixed plate, 11 cover plate, 12 pressure relief valve, 13 pressure gauge, 14 fixed block, 15 electrode rod, 16 sealing block, 17 spring. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0023] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

[0024] refer to Figure 1-6 , an energy-saving metallurgical arc furnace, comprising a base 1, two support plates 6 are fixedly connected at symmetrical positions on the upper end surface of the base 1, an arc furnace body 7 is rotatably connected between the two support plates 6, two fixed plates 10 are fixedly connected to the side of the arc furnace body 7, a cover plate 11 is rotatably connected between the two fixed plates 10, the upper end surface of the cover plate 11 is fixedly connected to a pressure relief valve 12, a sealing block 16 is slidably connected inside the pressure relief valve 12, a discharge pipe 8 is fixedly connected to the side of the arc furnace body 7, the left end of the discharge pipe 8 is connected to the interior of the arc furnace body 7, a high-temperature resistant solenoid valve 9 is installed on the surface of the discharge pipe 8, a groove 2 is provided on the upper end surface of the base 1, the inner wall of the groove 2 and the lower end surface of the arc furnace body 7 are rotatably connected with a rotating block 3, a hydraulic rod 4 is fixedly connected between the two rotating blocks 3, and an electrode rod 15 is installed on the lower end surface of the cover plate 11.

[0025] By providing the hydraulic rod 4 , the hydraulic rod 4 can drive the electric arc furnace body 7 to turn over through the rotating block 3 , so that the melted raw materials in the electric arc furnace body 7 can be poured out.

[0026] Furthermore, the sides of the electric arc furnace body 7 and the cover plate 11 are fixedly connected with fixing blocks 14 , and threaded rods are commonly threadedly connected in the two fixing blocks 14 .

[0027] By providing a threaded rod and tightening the threaded rod in the fixing block 14 , the sealing performance of the connection between the cover plate 11 and the electric arc furnace body 7 can be improved.

[0028] Furthermore, a spring 17 is fixedly connected to the upper end surface of the sealing block 16 , and the top end of the spring 17 is fixedly connected to the inner wall of the pressure relief valve 12 .

[0029] By providing the spring 17 , the spring 17 can press the sealing block 16 against the inner wall of the pressure relief valve 12 by its own elastic force.

[0030] Furthermore, the lower end surface of the cover plate 11 overlaps with the upper end surface of the electric arc furnace body 7 , and the lower end surface of the pressure relief valve 12 is connected to the interior of the electric arc furnace body 7 .

[0031] Furthermore, a pressure gauge 13 is fixedly connected to the upper end surface of the cover plate 11 , and a mold 5 is placed in the groove 2 .

[0032] Furthermore, the bottom of the inner wall of the electric arc furnace body 7 is configured to be arc-shaped.

[0033] By setting the inner wall of the electric arc furnace body 7 to be in an arc shape, all the fluid can be easily discharged from the discharge pipe 8 when the electric arc furnace body 7 rotates.

[0034] The working principle of the utility model is as follows: first, the staff puts the raw materials to be heated and melted into the electric arc furnace body 7, then the staff flips down the cover plate 11 to close it on the electric arc furnace body 7, and tightens the threaded rod into the fixing block 14. The staff starts the electrode rod 15 to heat the inside of the electric arc furnace body 7. The gas generated by the raw materials during heating increases, causing the pressure inside the electric arc furnace body 7 to increase, and the gas will push the sealing block 16 upward. When the pressure inside the electric arc furnace body 7 is greater than the elastic force of the spring 17, the gas will push the sealing block 16 up to make it The pressure relief valve 12 is connected to the arc furnace body 7. At this time, the gas inside the arc furnace body 7 will be relieved through the pressure relief valve 12. When the pressure is reduced, the spring 17 drives the sealing block 16 to move downward to seal the arc furnace body 7. When the raw material is completely melted, the staff starts to shorten the hydraulic rod 4. The hydraulic rod 4 can drive the arc furnace body 7 to flip through the rotating block 3, so that all the raw materials inside the arc furnace body 7 can flow to the vicinity of the discharge pipe 8. At this time, the staff controls the high-temperature resistant solenoid valve 9 to open, so that the raw material can flow into the mold 5 through the discharge pipe 8;

[0035] Compared with the existing technology, manual operation by staff is not required, which reduces the workload of staff.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An energy-saving metallurgical arc furnace, comprising a base (1), characterized in that: Two support plates (6) are fixedly connected at symmetrical positions on the upper end surface of the base (1); an arc furnace body (7) is rotatably connected between the two support plates (6); two fixing plates (10) are fixedly connected to the side surfaces of the arc furnace body (7); a cover plate (11) is rotatably connected between the two fixing plates (10); a pressure relief valve (12) is fixedly connected to the upper end surface of the cover plate (11); a sealing block (16) is slidably connected inside the pressure relief valve (12); and the arc furnace body (7) is fixedly connected to the upper end surface of the cover plate (11). ) is fixedly connected to the side of the electric arc furnace body (7), the left end of the discharge pipe (8) is connected to the inside of the electric arc furnace body (7), and a high-temperature resistant electromagnetic valve (9) is installed on the surface of the discharge pipe (8). The upper end surface of the base (1) is provided with a groove (2), and the inner wall of the groove (2) and the lower end surface of the electric arc furnace body (7) are both rotatably connected to a rotating block (3), and a hydraulic rod (4) is fixedly connected between the two rotating blocks (3). The lower end surface of the cover plate (11) is installed with an electrode rod (15).

2. The energy-saving metallurgical arc furnace according to claim 1, characterized in that: The sides of the electric arc furnace body (7) and the cover plate (11) are both fixedly connected with fixing blocks (14), and a threaded rod is commonly threadedly connected in the two fixing blocks (14).

3. The energy-saving metallurgical arc furnace according to claim 1, characterized in that: The upper end surface of the sealing block (16) is fixedly connected to a spring (17), and the top end of the spring (17) is fixedly connected to the inner wall of the pressure relief valve (12).

4. The energy-saving metallurgical arc furnace according to claim 1, characterized in that: The lower end surface of the cover plate (11) overlaps with the upper end surface of the electric arc furnace body (7), and the lower end surface of the pressure relief valve (12) is connected to the inside of the electric arc furnace body (7).

5. The energy-saving metallurgical arc furnace according to claim 1, characterized in that: A pressure gauge (13) is fixedly connected to the upper end surface of the cover plate (11), and a mold (5) is placed in the groove (2).

6. The energy-saving metallurgical arc furnace according to claim 1, characterized in that: The bottom of the inner wall of the electric arc furnace body (7) is arranged in an arc shape.

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