Submerged arc furnace electrode copper tile shaft sleeve air cooling and heat dredging device

Abstract

The utility model discloses an air cooling and heat dredging device for an electrode copper tile shaft sleeve of a submerged arc furnace, which belongs to the field of submerged arc furnace maintenance and comprises a pressure pump, a pipeline dredging device and a high-pressure hose communicated with the pipeline dredging device and the pressure pump. Compared with the prior art, the device has the advantages that a plurality of threaded cleaning pads are fixed on the side wall of the rotary spray head, the threaded cleaning pads can form an interval type stud, the interval type stud is meshed with a spiral structure formed by the spiral type heat dissipation fins, and when the rotary spray head rotates, the spiral type heat dissipation fins and the spiral type heat dissipation fins are mutually meshed. When the pipeline dredging device moves forwards, the threaded cleaning assembly can synchronously rotate and push the pipeline dredging device to move forwards at the same time, when the pipeline dredging device moves to a corner, due to the fact that the threaded cleaning pad is made of a soft plastic material, the pipeline dredging device can deform and smoothly drive the rotary spray head to turn around, and the situation that the pipeline dredging device is clamped cannot occur.

Description

Technical Field

[0001] This utility model relates to the field of electric arc furnace maintenance, specifically to an air-cooling and heat conduction device for the copper bearing bush of the electric arc furnace electrode. Background Technology

[0002] In the ore refining process, the methods have evolved from the most primitive heating and hammering refining to the most commonly used smelting furnace refining at present. With the development of electrification, the furnace has also evolved from the initial fire heating to electric heating. The energy of the electric arc and the current pass through the furnace charge, and the resistance of the furnace charge generates energy to melt the metal. In the process of power transmission, the direct-cooling electrode copper tile of the electric arc furnace is one of the most important conductive components. It is made of high-purity copper parts cast in one piece. Inside the tile is a water-cooling pipe for heat dissipation and temperature control. In order to accelerate cooling, spiral heat dissipation fins are usually welded inside the water-cooling pipe. The spiral heat dissipation fins increase the contact area of ​​the cooling water, thereby accelerating the cooling effect. The water-cooling pipes currently used are usually U-shaped, such as the "direct-cooling electrode copper tile of electric arc furnace" disclosed in the patent application document with application number: CN92218379.8. Therefore, in order to clean the water-cooling pipes regularly to ensure their heat conduction performance, appropriate drainage devices are usually used for cleaning.

[0003] Currently, the commonly used air-cooling and heat-draining devices for copper bearing bushings of electric arc furnace electrodes typically consist of a pressure pump and a pipe drainer. The two are connected by a high-pressure hose. The high-pressure water flow provided by the pressure pump causes the rotating nozzle of the pipe drainer to continuously rotate and spray water while moving forward, thereby flushing away the scale in the blocked area.

[0004] The drain cleaner functions normally during straight-line impacts, but when it reaches a U-shaped corner, it may be blocked by the heat dissipation fins at the corner, causing the drain cleaner to fail and resulting in corner cleaning failure. Utility Model Content

[0005] The technical problem this invention aims to solve is that, when cleaning the U-shaped bend of the water-cooled pipe in the existing air-cooled and heat-draining device for copper bearing bushings of electric arc furnace electrodes, the pipe drainer is easily stuck by the spiral heat dissipation fins.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a cooling and heat conduction device for copper bearing bushings of electric arc furnace electrodes, including a pressurizing pump, a pipe guide, and a high-pressure hose connecting the pipe guide and the pressurizing pump; the pipe guide includes a fixed-point water passage body connected to the outlet of the high-pressure hose and a rotating nozzle located at the outlet of the fixed-point water passage body; the side wall of the rotating nozzle is provided with a plurality of threaded cleaning assemblies for cleaning heat dissipation fins, the threaded cleaning assembly including a fixed bracket fixed to the side wall of the rotating nozzle by bolts and a threaded cleaning pad welded to the fixed bracket, and the threaded cleaning pad is made of soft plastic.

[0007] As an improvement, the inlet of the rotating nozzle is welded to the outlet of the fixed-point water passage of the guide via a rotating sealed bearing, and the outer wall of the rotating sealed bearing passes through the side wall of the outlet of the fixed-point water passage of the guide.

[0008] As an improvement, the interior of the rotating nozzle is provided with several arc-shaped inclined holes, and the water jet direction of the arc-shaped inclined holes is opposite to the jet direction of the main nozzle of the rotating nozzle.

[0009] As an improvement, each of the aforementioned threaded cleaning pads is located behind the curved inclined holes, and the water spray direction of the curved inclined holes is offset from that of the threaded cleaning pads.

[0010] As an improvement, each of the aforementioned threaded cleaning pads is arranged sequentially according to the spiral direction of the heat dissipation fins to form a complete spaced stud.

[0011] As an improvement, both the pressurizing pump and the pipe drainer are connected to the high-pressure hose via a hose clamp.

[0012] The advantages of this invention compared to the prior art are as follows: This device has several threaded cleaning pads fixed on the side wall of the rotating nozzle. These threaded cleaning pads form an intermittent stud. This intermittent stud and the spiral structure formed by the spiral heat dissipation fins mesh with each other. When the rotating nozzle rotates, the threaded cleaning assembly will rotate synchronously and push the pipe guide forward. When it reaches a corner, because the threaded cleaning pad is made of soft plastic, it can deform and smoothly carry the rotating nozzle to the corner without getting stuck. Attached Figure Description

[0013] Figure 1 This is a general structural diagram of a copper bearing sleeve air-cooling and heat conduction device for an electrode of a submerged arc furnace.

[0014] Figure 2 This is an exploded view of the overall structure of a copper bearing bushing air-cooling and heat conduction device for an electrode of a submerged arc furnace according to this utility model.

[0015] Figure 3This is a cross-sectional view of the overall structure of a copper bearing bushing for an electrode in a submerged arc furnace, according to this utility model.

[0016] Figure 4 This is a structural diagram of the thread cleaning component of a wind-cooling and heat conduction device for copper bearing bushings of electric arc furnace electrodes.

[0017] As shown in the figure: 1. Pressure pump; 2. Pipeline drainer; 21. Drainer fixed-point water flow body; 22. Rotary nozzle; 221. Arc-shaped beveled hole; 23. Rotary sealing bearing; 3. High-pressure hose; 4. Threaded cleaning assembly; 41. Fixed bracket; 42. Threaded cleaning pad. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] As per the instruction manual Figure 2 , 3 As shown in Figure 4, the pipe drainer 2 includes a drainer fixed-point water passage body 21 connected to the outlet of the high-pressure hose 3 and a rotating nozzle 22 located at the outlet of the drainer fixed-point water passage body 21. The inlet of the rotating nozzle 22 is welded to the outlet of the drainer fixed-point water passage body 21 through a rotating sealed bearing 23, and the outer wall of the rotating sealed bearing 23 passes through the side wall of the outlet of the drainer fixed-point water passage body 21. The interior of the rotating nozzle 22 is provided with several arc-shaped inclined holes 221, and the water jet direction of the arc-shaped inclined holes 221 is opposite to the jet direction of the main nozzle of the rotating nozzle 22. The outer wall of the sealing bearing 23 is welded into the groove of the outlet of the fixed-point water passage 21 of the guide. After the inlet of the rotating nozzle 22 is inserted into the central through hole of the rotating sealing bearing 23, the two are welded together with an electric welding machine to ensure the sealing of the high-pressure water flow and to ensure that the rotating nozzle 22 will not fall off due to the impact of the high-pressure water flow. The arc-shaped inclined hole 221 will form an angle thrust when water is discharged, so that the rotating nozzle 22 rotates along the center of the rotating sealing bearing 23 under the action of this thrust. The multiple arc-shaped inclined holes 221 are to increase the rotation speed.

[0020] The rotating nozzle 22 has several threaded cleaning assemblies 4 on its side wall for cleaning the heat dissipation fins. Each threaded cleaning assembly 4 includes a fixing bracket 41 fixed to the side wall of the rotating nozzle 22 by bolts and threaded cleaning pads 42 welded to the fixing bracket 41. The threaded cleaning pads 42 are made of soft plastic. Each threaded cleaning pad 42 is located behind the arc-shaped inclined hole 221, and the water spray direction of the arc-shaped inclined hole 221 is offset from that of the threaded cleaning pad 42. Each threaded cleaning pad 42 is arranged in sequence according to the spiral direction of the heat dissipation fins to form a complete spaced stud. The threaded cleaning pads 42 are arranged in the order of their threads, and the fixing bracket 41 connecting the threaded cleaning pads 42 is placed on the side wall of the rotating nozzle 22. The screw holes of the two are aligned, and screws are screwed in to fix them, so that each threaded cleaning pad 42 forms a complete spaced stud around the rotating nozzle 22. The spaced studs correspond to the spiral heat dissipation fins, thus ensuring that the two will not loosen or misalign when they are engaged.

[0021] As per the instruction manual Figure 1 As shown, it includes a booster pump 1, a pipe dredging device 2, and a high-pressure hose 3 connecting the pipe dredging device 2 and the booster pump 1. The booster pump 1 and the pipe dredging device 2 are both connected to the high-pressure hose 3 by hose clamps. The high-pressure hose 3 is respectively fitted onto the inlet of the bottom surface of the fixed water passage body 21 of the dredging device and the outlet of the booster pump 1, and the two are fixedly connected by hose clamps.

[0022] In a specific implementation of this invention, the rotating nozzle 22 of the pipe cleaner 2 is placed into the water-cooled pipe, so that the threaded cleaning pads 42 around the rotating nozzle 22 engage with the spiral heat dissipation fins. The pressurization pump 1 is started, and the main nozzle at the front of the rotating nozzle 22 will spray an impact water flow to clean the scale. Due to the different spray angles, the arc-shaped inclined holes 221 on the side of the rotating nozzle 22 will generate a rotational force from the high-pressure water flow, thereby driving the rotating nozzle 22 to rotate. During rotation, the threaded cleaning pads 42 will continuously advance on the spiral heat dissipation fins, cleaning the spiral heat dissipation fins while pushing the rotating nozzle 22 forward. When encountering corners, the threaded cleaning pads 42 can also bend according to the actual situation, thereby ensuring that the rotating nozzle 22 can advance along the same path as the spiral heat dissipation fins.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A kind of copper shoe bushing air cooling and hot dredging device of ore-heating furnace electrode, including pressurized pump (1), pipeline dredging device (2) and the high-pressure hose (3) of the communication pipeline dredging device (2) and pressurized pump (1);The pipeline dredging device (2) includes the dredging device fixed-point water body (21) being connected in the water outlet of high-pressure hose (3) and the rotary spray head (22) being located in the water outlet of dredging device fixed-point water body (21);Its characterized in that: The side wall of the rotating nozzle (22) is provided with a plurality of threaded cleaning components (4) for cleaning the heat dissipation fins, the threaded cleaning component (4) comprises a fixed support (41) fixed on the side wall of the rotating nozzle (22) by bolts and a threaded cleaning pad (42) welded on the fixed support (41), and the threaded cleaning pad (42) is made of soft plastic material.

2. The air cooling and heat dissipation device for the shaft sleeve of the copper shoe of the electrode of the ore-smelting furnace according to claim 1, characterized in that: The water inlet of the rotating nozzle (22) is welded to the water outlet of the defuser fixed-point water passing body (21) through a rotating sealing bearing (23), and the outer wall of the rotating sealing bearing (23) penetrates the side wall of the water outlet of the defuser fixed-point water passing body (21).

3. The air cooling and heat dissipation device for the shaft sleeve of the copper shoe of the electrode of the ore-smelting furnace according to claim 1, characterized in that: The rotating nozzle (22) is internally provided with a plurality of arc-shaped inclined holes (221), and the water flow injection direction of the arc-shaped inclined hole (221) is opposite to the injection direction of the main nozzle of the rotating nozzle (22).

4. The air cooling and heat dissipation device for the shaft sleeve of the copper shoe of the electrode of the ore-smelting furnace according to claim 3, characterized in that: Each threaded cleaning pad (42) is located behind the arc-shaped inclined hole (221), and the water injection direction of the arc-shaped inclined hole (221) is staggered with the threaded cleaning pad (42).

5. The air cooling and heat dissipation device for the shaft sleeve of the copper shoe of the electrode of the ore-smelting furnace according to claim 1, characterized in that: Each threaded cleaning pad (42) is sequentially arranged according to the spiral direction of the cleaning heat dissipation fins to form a complete spaced screw.

6. The air cooling and heat dissipation device for the shaft sleeve of the copper shoe of the electrode of the ore-smelting furnace according to claim 1, characterized in that: The pressurizing pump (1) and the pipeline defuser (2) are connected with the high-pressure hose (3) through a throat clamp.

Images