Water-cooling circulating device for electric arc furnace conductive arm

Abstract

The utility model relates to the technical field of water-cooling equipment, in particular to a water-cooling circulating device for a conductive arm of an electric arc furnace, which comprises a circulating coil pipe, connecting pipes and a water blocking plate, a water inlet pipe and a water outlet pipe are respectively inserted and mounted on the outer walls of two ends of the circulating coil pipe, and the connecting pipes are inserted and mounted on the outer walls of one ends of the water inlet pipe and the water outlet pipe. And a collecting cover is inserted into one side of the outer wall of the lower end of the connecting pipe, and a water blocking plate is arranged on one side of the inner wall of the connecting pipe, so that the relative cleanliness of the inner wall of the circulating coil pipe is kept, the heat exchange efficiency of heat exchange liquid in the circulating pipeline is guaranteed, and the cooling effect of the circulating pipeline on the conductive arm is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling equipment, in particular to a water cooling circulation device for a conducting arm of an electric arc furnace. Background Art

[0002] The conductive arm of the electric arc furnace is a key component of the electric arc furnace equipment. It is mainly used for conducting electricity and supporting electrodes. The conductive arm of the electric arc furnace is usually made of copper-steel composite plates and welded to form a rectangular beam structure. This design combines the conductive function of the outer surface copper plate with the mechanical support function of the internal steel plate. Since the operating temperature of the conductive arm is relatively high, it needs to be cooled by a water cooling device. The water cooling device cools the conductive arm through a cooling water circulation system, thereby extending the service life of the equipment and improving production efficiency. The heat exchange liquid commonly used in the water cooling equipment of the steelmaking electric arc furnace is water.

[0003] Although the water cooling structure in the prior art has many benefits, it still has the following problems: it lacks a cleaning structure for the inner wall of the circulation tube used for water cooling heat exchange, which results in that during the heat exchange process, due to the increase in water temperature, the calcium ions and magnesium ions in the water will react with the bicarbonate ions to generate compounds such as calcium carbonate and magnesium hydroxide. The products are generally called scale. The scale adheres to the inner wall of the circulation tube, affecting the heat exchange efficiency and effect of the circulation tube. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a water cooling circulation device for a conducting arm of an electric arc furnace.

[0005] The technical solution adopted by the utility model to solve its technical problems is a water-cooling circulation device for the conductive arm of an electric arc furnace, comprising a circulation coil, a connecting pipe and a water blocking plate, wherein the outer walls at both ends of the circulation coil are respectively plugged with a water inlet pipe and a drain pipe, the outer walls of one end of the water inlet pipe and the drain pipe are both plugged with a connecting pipe, one side of the outer wall of the lower end of the connecting pipe is plugged with a collecting hood, and one side of the inner wall of the connecting pipe is provided with a water blocking plate.

[0006] By adopting the above technical solution, the cooling liquid flows inside the circulating coil through the connecting pipe, the water inlet pipe and the drain pipe, thereby reducing the temperature of the circulating coil, thereby cooling the conductive arm, and the water blocking plate moves inside the circulating coil according to the pressure of the flushing liquid to scrape off the attachments on the inner wall of the circulating coil.

[0007] Specifically, the outer walls of one side of the water inlet pipe and the drain pipe are both designed in a curved shape, and the working height of the outer wall of one end of the drain pipe is located at the upper end of the water inlet pipe.

[0008] By adopting the above technical solution, the heat exchange liquid circulates inside the circulation coil through the water inlet pipe and the drain pipe to cool the circulation coil.

[0009] Specifically, the inner diameter of the connecting pipe is respectively consistent with the inner diameters of the water inlet pipe and the drain pipe, and the connecting pipe is connected to the inside of the circulation coil through the water inlet pipe or the drain pipe.

[0010] By adopting the above technical solution, the heat exchange liquid or flushing liquid inside the connecting pipe flows inside the circulation coil through the water inlet pipe or the drain pipe respectively.

[0011] Specifically, a water pipe is plugged and installed on the outer wall of one side of the connecting pipe, and a flushing pipe is plugged and installed on the outer wall of one end of the connecting pipe.

[0012] By adopting the above technical scheme, the water pipe is connected to the external liquid pump, and the liquid pump pressurizes the heat exchange liquid so that the heat exchange liquid enters the connecting pipe through the water pipe. The flushing pipe is connected to the external liquid pump, and the liquid pump pressurizes the flushing liquid so that the flushing liquid enters the connecting pipe through the flushing pipe.

[0013] Specifically, the collecting hood is designed in a rectangular shape, a sewage pipe is plugged and installed on the outer wall of the lower end of the collecting hood, and the sewage pipe is connected with the inside of the connecting pipe through the collecting hood.

[0014] By adopting the above technical solution, the collecting hood collects the scale in a centralized manner to prevent the scale from being scattered, and the scale mixed with the flushing liquid inside the collecting hood is discharged through the drain pipe.

[0015] Specifically, a filter plate is provided on one side of the inner wall of the connecting pipe, and electromagnets distributed in a circular array are embedded and installed on the inner wall of the connecting pipe.

[0016] By adopting the above technical solution, the filter plate filters the scale inside the connecting pipe and can collect the scale in a centralized manner. The magnetic force of the electromagnet attracts the water blocking plate to maintain the relative position stability of the water blocking plate inside the connecting pipe.

[0017] Specifically, scrapers are installed on the outer walls of both sides of the water blocking plate, a sealing ring is fixedly attached to one side of the outer wall of the water blocking plate, and the scrapers and the sealing ring are in contact with the inner wall of the connecting pipe.

[0018] By adopting the above technical solution, the water blocking plate maintains the sealing between it and the inner wall of the connecting pipe through the sealing ring, so that the water blocking plate can maintain the sealing inside the circulating coil, so that the water blocking plate moves with the flow of the flushing liquid. During the movement of the water blocking plate, the scraper is used to scrape and clean the scale attached to the inner walls of the circulating coil, the connecting pipe, the water inlet pipe and the drain pipe.

[0019] Beneficial effects of the utility model:

[0020] (1) The utility model discloses a water-cooling circulation device for an electric arc furnace conductive arm. An external water pump pressurizes the flushing liquid inside the connecting pipe through a flushing pipe at one end, and the water blocking plate is pushed to move by the pressure of the flushing liquid, so that the water blocking plate moves inside the circulating coil. The water blocking plate scrapes and cleans the scale attached to the inner wall of the circulating coil through a scraper, thereby maintaining the relative cleanliness of the inner wall of the circulating coil, ensuring the heat exchange efficiency of the heat exchange liquid inside the circulating pipe, and ensuring the cooling effect of the circulating pipe on the conductive arm.

[0021] (2) The utility model discloses a water-cooling circulation device for an electric arc furnace conductive arm. The scale scraped off is blocked by the filter plate, causing the scale to accumulate. When the water-blocking plate is scraped off and moved to the inside of the connecting pipe, the magnetic force generated by the electromagnet attracts the water-blocking plate to maintain the relative position stability of the water-blocking plate. The water-blocking plate can push the scale into the collection cover, and the external water pump can transport flushing liquid to the inside of the connecting pipe through the flushing pipe to assist the movement of the scale. The scale inside the collection cover is discharged through the drain pipe, thereby achieving the purpose of centralized cleaning of the scale, ensuring the relative cleanliness of the inner wall of the connecting pipe, and improving the scale collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the appearance of the circulation coil structure of the utility model;

[0024] Figure 2 It is an enlarged schematic diagram of the connecting pipe structure of the utility model;

[0025] Figure 3 It is a cross-sectional schematic diagram of the connecting pipe structure of the utility model;

[0026] Figure 4 It is a partial enlarged schematic diagram of the connecting pipe structure of the utility model;

[0027] Figure 5 It is an enlarged schematic diagram of the water blocking plate structure of the utility model.

[0028] In the figure: 1. circulating coil; 11. water inlet pipe; 12. drain pipe; 2. connecting pipe; 21. water pipe; 22. flushing pipe; 23. collecting hood; 24. sewage pipe; 25. electromagnet; 26. filter plate; 3. water blocking plate; 31. sealing ring; 32. scraper. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] In order to save manpower and improve efficiency, as an embodiment of the present utility model, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the utility model describes a water-cooling circulation device for an electric arc furnace conductive arm, comprising a circulation coil 1, a connecting pipe 2 and a water blocking plate 3, wherein an inlet pipe 11 and a drain pipe 12 are respectively plugged and installed on the outer walls at both ends of the circulation coil 1, a connecting pipe 2 is plugged and installed on the outer walls at one end of the water inlet pipe 11 and the drain pipe 12, a collecting hood 23 is plugged and installed on one side of the outer wall of the lower end of the connecting pipe 2, and a water blocking plate 3 is provided on one side of the inner wall of the connecting pipe 2.

[0031] When in use, the cooling liquid flows inside the circulation coil 1 through the connecting pipe 2, the water inlet pipe 11 and the drain pipe 12, thereby reducing the temperature of the circulation coil 1, thereby cooling the conductive arm, and the water blocking plate 3 moves inside the circulation coil 1 according to the pressure of the flushing liquid to scrape off the attachments on the inner wall of the circulation coil 1.

[0032] In order to ensure the position distinction of the connecting pipe 2, for example, Figure 1 As shown, the outer walls of one side of the water inlet pipe 11 and the drain pipe 12 are both designed in a curved shape, and the working height of the outer wall of one end of the drain pipe 12 is located at the upper end of the water inlet pipe 11.

[0033] When in use, the heat exchange liquid circulates inside the circulation coil 1 through the water inlet pipe 11 and the drain pipe 12 to cool the circulation coil 1.

[0034] In order to ensure the circulation of the heat exchange liquid, for example, Figure 1 As shown, the inner diameter of the connecting pipe 2 is respectively consistent with the inner diameters of the water inlet pipe 11 and the drain pipe 12 , and the connecting pipe 2 is connected to the inside of the circulation coil 1 through the water inlet pipe 11 or the drain pipe 12 .

[0035] When in use, the heat exchange liquid or flushing liquid in the connecting pipe 2 flows in the circulation coil 1 through the water inlet pipe 11 or the drain pipe 12 respectively.

[0036] For the differentiated inflow of flushing liquid and heat exchange liquid, for example, Figure 2 As shown, a water pipe 21 is installed on the outer wall of one side of the connecting pipe 2, and a flushing pipe 22 is installed on the outer wall of one end of the connecting pipe 2.

[0037] When in use, the water pipe 21 is connected to an external liquid pump, which pressurizes the heat exchange liquid so that the heat exchange liquid enters the connecting pipe 2 through the water pipe 21, and the flushing pipe 22 is connected to an external liquid pump, which pressurizes the flushing liquid so that the flushing liquid enters the connecting pipe 2 through the flushing pipe 22.

[0038] In order to discharge the dirt centrally, for example, Figure 3 As shown, the collecting cover 23 is designed in a rectangular shape, and a sewage pipe 24 is inserted and installed on the outer wall of the lower end of the collecting cover 23, and the sewage pipe 24 is connected with the inside of the connecting pipe 2 through the collecting cover 23.

[0039] When in use, the collecting cover 23 collects the scale in a centralized manner to prevent the scale from being scattered, and the scale mixed with the flushing liquid inside the collecting cover 23 is discharged through the drain pipe 24 .

[0040] In order to isolate and collect dirt, for example, Figure 4 As shown, a filter plate 26 is provided on one side of the inner wall of the connecting pipe 2, and electromagnets 25 distributed in a circular array are embedded and installed on the inner wall of the connecting pipe 2.

[0041] When in use, the filter plate 26 filters the scale inside the connecting pipe 2 and can collect the scale in a centralized manner. The magnetic force of the electromagnet 25 attracts the water blocking plate 3 to maintain the relative position stability of the water blocking plate 3 inside the connecting pipe 2 .

[0042] In order to keep the inner wall of the circulation coil 1 clean, for example, Figure 3 As shown, scrapers 32 are installed on the outer walls of both sides of the water blocking plate 3, and a sealing ring 31 is fixed on one side of the outer wall of the water blocking plate 3. The scrapers 32 and the sealing ring 31 are in contact with the inner wall of the connecting pipe 2.

[0043] When in use, the water blocking plate 3 maintains sealing with the inner wall of the connecting pipe 2 through the sealing ring 31, so that the water blocking plate 3 can maintain sealing inside the circulation coil 1, so that the water blocking plate 3 moves with the flow of the flushing liquid. During the movement of the water blocking plate 3, the scale attached to the inner walls of the circulation coil 1, the connecting pipe 2, the water inlet pipe 11 and the drain pipe 12 is scraped and cleaned by the scraper 32. The thickness of the water blocking plate 3 is greater than the inner wall size of the collecting cover 23, so that the water blocking plate 3 can block the collecting cover 23 to prevent the scale from flowing back into the circulation coil 1. The moving speed of the water blocking plate 3 is adjusted according to the pressure of the flushing liquid, so that the wear on the inner wall of the circulation coil 1 can be reduced by adjusting the moving speed of the scraper 32.

[0044] When the utility model is in use, the water pipe 21 is connected to an external liquid pump, and the liquid pump pressurizes the heat exchange liquid, so that the heat exchange liquid enters the interior of the connecting pipe 2 through the water pipe 21, and then the heat exchange liquid enters the interior of the circulation coil 1 through the water inlet pipe 11, and the circulation coil 1 is cooled;

[0045] The circulating coil 1 performs heat exchange cooling on the conductive arm, and then the heat exchange liquid is discharged through the drain pipe 12 and the water pipe 21 at the other end, thereby realizing the recycling of the cold zone liquid;

[0046] The external water pump pressurizes the flushing liquid inside the connecting pipe 2 through the flushing pipe 22 at one end, and the water blocking plate 3 is pushed to move by the pressure of the flushing liquid, so that the water blocking plate 3 moves inside the circulating coil 1. The water blocking plate 3 scrapes and cleans the scale attached to the inner wall of the circulating coil 1 through the scraper 32 until the water blocking plate 3 enters the inside of the connecting pipe 2 at the other end, and the scraped and fallen scale is blocked by the filter plate 26, so that the scale is accumulated;

[0047] The magnetic force generated by the electromagnet 25 attracts the water blocking plate 3 to keep the relative position of the water blocking plate 3 stable, and the water blocking plate 3 can push the scale into the collection cover 23;

[0048] An external water pump can transport flushing liquid to the inside of the connecting pipe 2 through the flushing pipe 22. The flushing liquid can assist in the movement of scale. The scale inside the collection cover 23 is discharged through the drain pipe 24. When used next time, the flow direction of the flushing liquid inside the flushing pipe 22 is reversed, so that the circulating coil 1 can be repeatedly scraped and cleaned.

[0049] It should be noted that the utility model is a water-cooling circulation device for the conductive arm of an electric arc furnace. The components in the utility model are all components known to those skilled in the art, and their structures and principles are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0050] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A water cooling circulation device for an electric arc furnace conductive arm, characterized in that: The invention comprises a circulation coil (1), a connecting pipe (2) and a water blocking plate (3); a water inlet pipe (11) and a drainage pipe (12) are respectively plugged and installed on the outer walls at both ends of the circulation coil (1); a connecting pipe (2) is plugged and installed on the outer walls at one end of each of the water inlet pipe (11) and the drainage pipe (12); a collecting cover (23) is plugged and installed on one side of the outer wall at the lower end of the connecting pipe (2); and a water blocking plate (3) is provided on one side of the inner wall of the connecting pipe (2).

2. A water cooling circulation device for an electric arc furnace conductive arm according to claim 1, characterized in that: The outer walls of one side of the water inlet pipe (11) and the drainage pipe (12) are both designed in a curved shape, and the working height of the outer wall of one end of the drainage pipe (12) is located at the upper end of the water inlet pipe (11).

3. The water cooling circulation device for the electric arc furnace conductive arm according to claim 1, characterized in that: The inner diameter of the connecting pipe (2) is respectively consistent with the inner diameters of the water inlet pipe (11) and the drainage pipe (12), and the connecting pipe (2) is connected to the inside of the circulation coil (1) through the water inlet pipe (11) or the drainage pipe (12).

4. The water cooling circulation device for an electric arc furnace conducting arm according to claim 1, characterized in that: A water pipe (21) is plugged and installed on the outer wall of one side of the connecting pipe (2), and a flushing pipe (22) is plugged and installed on the outer wall of one end of the connecting pipe (2).

5. The water cooling circulation device for the electric arc furnace conductive arm according to claim 1, characterized in that: The collecting hood (23) is designed in a rectangular shape, and a sewage discharge pipe (24) is plugged and installed on the outer wall of the lower end of the collecting hood (23), and the sewage discharge pipe (24) is connected to the inside of the connecting pipe (2) through the collecting hood (23).

6. The water cooling circulation device for the electric arc furnace conducting arm according to claim 1, characterized in that: A filter plate (26) is provided on one side of the inner wall of the connecting pipe (2), and electromagnets (25) distributed in a circular array are embedded and installed on the inner wall of the connecting pipe (2).

7. The water cooling circulation device for the electric arc furnace conducting arm according to claim 1, characterized in that: Scrapers (32) are installed on the outer walls of both sides of the water blocking plate (3), a sealing ring (31) is fixedly attached to one side of the outer wall of the water blocking plate (3), and the scrapers (32) and the sealing ring (31) are in contact with the inner wall of the connecting pipe (2).

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