Electrode holder and electrode column system

Abstract

The application discloses an electrode holder and electrode column system, relates to the technical field of ore smelting furnace mechanical equipment, and comprises a pressing block, a holding cylinder assembly, an electrode, a pressure ring, a bottom ring and a protective screen; the outer portion of an electrode shell of the electrode is surrounded by a copper tile; the pressing block is located outside the copper tile, and the copper tile tightly adheres to the electrode shell under the external pressure of the pressing block; the outer portion of the copper tile is surrounded by the pressure ring, the pressure ring is located at the lower end of the holding cylinder assembly, the lower end of the pressure ring is provided with the bottom ring, and the electrode is located in the pressure ring; the bottom ring is provided with a protective screen supporting surface, and the lower end of the protective screen is fixed to the protective screen supporting surface through an embedded hook. Through the mutual connection, assembly and matching process of the bottom ring, the protective screen and the components of the holder system, the service life of the components is prolonged, the operation rate of the ore smelting furnace is improved, the maintenance difficulty and maintenance cost are reduced, and the purposes of saving electricity and increasing production are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ore smelting furnace mechanical equipment, and particularly relates to an electrode holder and an electrode column system. BACKGROUND

[0002] The ore smelting furnace is also called an electric arc furnace or a resistance furnace, and is an industrial electric furnace with huge power consumption. The ore smelting furnace is mainly used for producing ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ferrosilicomanganese, calcium carbide and the like. The ore smelting furnace mainly comprises an electrode column system, a furnace shell, a furnace cover, a furnace lining, a water cooling system, a smoke exhaust system, a dust removal system, a feeding and discharging system, a burn-through device, a hydraulic system, an ore smelting furnace transformer and various electric devices. The electrode column system is a core part of the ore smelting furnace mechanical equipment, and comprises a holder system, a bottom ring device, a protection screen, an upper and lower holder cylinder, a ring copper pipe, a conductive vertical pipe, an electrode, an electrode cylinder and a sealed insulation part. The core part of the holder system is in a high-temperature and high-concentration dust environment during the operation of the ore smelting furnace, and therefore, the core part of the holder needs to be water-cooled, and the bottom ring and the protection screen are used to seal and protect the holder part, so as to ensure the normal operation of the ore smelting furnace.

[0003] The electrode column holder system is in a high-temperature environment, needs to be sealed and protected by using the bottom ring and the protection screen, and cooling water is used to cool and reduce the temperature of each part. However, the traditional bottom ring and the protection screen have the design defects, are easy to be damaged, leak water and deform. For example, the bottom ring is wrapped around the electrode in the circumferential direction, six protection screens of each electrode are completely surrounded around the electrode and are connected to form a whole, and each bottom ring is hung on the holder cylinder by a hanging device and bears the whole weight of the protection screen. Due to the design defects of the bottom ring hanging point and the cooling water path, the bottom ring is easy to be damaged, deformed and leak water in the high-temperature environment. The bottom ring supports the weight of the protection screen, and due to the design defects of the supporting surface of the bottom ring, the lower edge of the protection screen directly contacts the flame in the furnace in the harsh condition and is easy to be damaged and leak water. The material of the traditional protection screen is stainless steel, the cooling effect is not good during the operation, the stainless steel is easy to crack and difficult to maintain, the magnetic isolation effect of the stainless steel is not as good as that of copper, the product has large power consumption, and once the whole protection screen is damaged, it is difficult to maintain and has high replacement cost.

[0004] Chinese patent CN211451883U discloses a precise control device for the position of the electrode of a submerged arc furnace and a sealed submerged arc furnace. The precise control device for the position of the electrode of the submerged arc furnace comprises a hydraulic lifting device, a pressing block, and a combined holder. The pressing block is fixedly arranged at the end of the hydraulic lifting device. The combined holder is located above the pressing block. A scale is fixedly arranged on the combined holder. The hydraulic lifting device comprises a hydraulic oil station, a hydraulic lifting cylinder, a first oil pipe, a second oil pipe, and a hydraulic cylinder fixing part. A first pressure monitor is arranged on the first oil pipe. A second pressure monitor is arranged on the second oil pipe. The hydraulic cylinder fixing part is fixedly arranged at the bottom of the hydraulic lifting cylinder to fix the hydraulic lifting cylinder.

[0005] Chinese patent CN2540080 discloses an electrode holder for a submerged arc furnace. The feature is that the upper end of the cylinder connecting rod is fixedly connected with the cylinder piston in the cylinder. A spring is sleeved on the cylinder connecting rod between the cylinder piston and the bottom of the cylinder. The lower end of the connecting rod is connected with a threaded rod. The lower end of the connecting rod is hinged with the outer end of a lever hinged to the ear plate on the outer wall of the holding cylinder. The lower end of the upper pull rod is fixedly connected with the lower pull rod. The lower end of the lower pull rod is hinged with the outer end of the pressing rod. The inner end of the pressing rod is in contact with the top head fixed on the copper tile. The lower end of the hanging rod is hinged with the hanging lug fixed on the outer wall of the copper tile. The upper end is hinged with the lower end of the adjustable hanging lug in insulated cooperation.

[0006] Chinese patent CN103604300A discloses an electrode holder, which comprises a copper tile for clamping an electrode, a holding cylinder arranged above the copper tile and connected with the copper tile through a hanging device, a protective sleeve arranged outside the copper tile and leaving a predetermined distance from the outer sidewall of the copper tile, and a pressure ring comprising a pressure ring body sleeved on the copper tile to apply pressure to the copper tile through a corrugated expansion tank on the pressure ring body, and a refractory knotting material part applied on the bottom surface of the pressure ring body.

[0007] Chinese patent CN106658808A relates to a pressing device of a submerged arc furnace electrode holder and a submerged arc furnace electrode holder. The pressing device comprises a flange cover, an extension component, an elastic bellows, a cooling pipe, and a copper tile extrusion piece. The two ends of the elastic bellows are respectively connected with the extension component and the flange cover in a sealed manner to form a containing cavity between the flange cover, the extension component, and the elastic bellows. The cooling pipe is arranged inside the containing cavity. The copper tile extrusion piece is connected to the end of the extension component away from the elastic bellows. The flange cover is provided with an oil hole, a water inlet hole, and a water outlet hole. The oil hole is connected with the containing cavity. The water inlet hole and the water outlet hole are respectively connected with the two ends of the cooling pipe.

[0008] However, the bottom ring and the protective screen in the above-mentioned searched patents are easy to be damaged, which further affects the normal operation of the submerged arc furnace. SUMMARY

[0009] In order to reduce various failures of the electrode, reduce damage of the bottom ring and the protection screen, better protect the holder system of the ore smelting furnace, and increase the service life of the equipment components of the holder system, the application provides an electrode holder and an electrode column system.

[0010] In order to achieve the purpose of the application, the application adopts the following technical solutions:

[0011] An electrode holder comprises a pressing block, a holder barrel assembly, an electrode, a pressure ring, a bottom ring and a protection screen.

[0012] The electrode shell of the electrode is externally surrounded by copper tiles; the pressing block is located outside the copper tiles, and the copper tiles are tightly attached to the electrode shell under the external pressure of the pressing block, so that a large current from the short net is transmitted to the electrode through the water-cooled cable, the annular copper pipe and the water-cooled conductive vertical pipe via the copper tiles, and in operation, the corrugated expander tightly presses the conductive copper tiles on the electrode in a one-to-one manner, so that each copper tile is tightly combined with the electrode, and the phenomenon of arc between the copper tiles and the electrode caused by uneven current and uneven contact pressure is avoided.

[0013] The outer side of the copper tile is provided with the pressure ring, the pressure ring is located at the lower end of the holder barrel assembly, the lower end of the pressure ring is provided with the bottom ring, and the electrode is located in the pressure ring.

[0014] The bottom ring is provided with a protection screen supporting surface, and the lower end of the protection screen is fixed to the protection screen supporting surface through the embedded clasp.

[0015] Further, the pressing block is located between the copper tiles and the pressure ring, and the pressing block applies a certain pressing force to the copper tiles under the action of the pressure ring.

[0016] Further, the copper tiles are combined in multiple pieces, and the diameter of the electrode can be arbitrarily changed.

[0017] Further, the upper end of the electrode is fixed with the holder barrel assembly, the holder barrel assembly comprises an upper holder barrel and a lower holder barrel, the lower end of the upper holder barrel is fixedly connected with the upper end of the lower holder barrel, and the copper tiles are hung on the holder barrel assembly through the hanging devices on the copper tiles.

[0018] Further, the outer side of the lower holder barrel is provided with a cooling water pipeline, and the lower end of the cooling water pipeline is provided with a plurality of conductive copper pipes, and the conductive copper pipes are located outside the holder barrel assembly.

[0019] Further, the conductive copper pipes are connected with the copper tiles, and the cooling water pipeline is connected with the conductive copper pipes.

[0020] Further, the bottom ring is provided with a bolt hole, and adjacent bottom rings are fixedly connected through the bolts arranged in the bolt holes.

[0021] Further, the bottom ring is also provided with a bottom ring hanging part, a through hole is formed in the bottom ring hanging part, the side surface of the pressure ring is provided with a pressure ring hanging point and a pressure ring lug, the pressure ring hanging point is fixedly connected with the bottom ring through a mounting fixing part arranged in the through hole, and the protection screen is fixedly connected with the pressure ring lug.

[0022] Further, the pressure ring is provided with a mounting hole, the mounting hole is used for assembling a bellows, and a gland of the bellows is located on the outer side surface of the pressure ring.

[0023] Further, the pressure ring, the bellows and the bottom ring are combined into one body, and a containing cavity is formed between the pressure ring, the bellows and the bottom ring, so that the connection of the bottom ring is enhanced.

[0024] Further, one end of the bellows is connected with the gland, and the other end has an expansion component.

[0025] Further, the outer oil passage of the bellows cancels the sealing ring, and the exhaust passage of the bellows is increased.

[0026] Further, the bottom ring is provided with a bottom ring water inlet and a bottom ring water return, and the cooling water pipeline is composed of a plurality of water pipes, including a water inlet pipeline and a water return pipeline, the bottom ring water inlet is connected with the water inlet pipeline of the cooling water pipeline, and the bottom ring water return is connected with the water return pipeline of the cooling water pipeline.

[0027] Further, the height of the protection screen supporting surface on the bottom ring is 150 mm, and the width is 70 mm, so that the service life of the bottom ring is prolonged.

[0028] Further, the diameter of the bottom ring is greater than that of the protection screen, the protection screen is completely seated on the protection screen supporting surface of the bottom ring, direct contact of the lower edge of the protection screen with the flame in the furnace in a harsh situation is avoided, and the service life of the protection screen is prolonged.

[0029] Further, the protection screen comprises an upper segment protection screen and a lower segment protection screen, the lower end of the upper segment protection screen is provided with an embedded hook, the upper end of the lower segment protection screen is provided with a hook groove, and the embedded hook of the upper segment protection screen is matched with the hook groove of the lower segment protection screen.

[0030] Further, the upper and lower segment structure of the protection screen can avoid replacement of the whole set of protection screen due to burning of the lower part of the protection screen, and the maintenance cost is reduced.

[0031] Further, the upper segment protection screen is provided with a protection screen water inlet, a protection screen water return and a bolt fixing hole, the protection screen water inlet is connected with the water inlet pipeline of the cooling water pipeline, the protection screen water return is connected with the water return pipeline of the cooling water pipeline, the lower flange of the holding cylinder assembly is bolted in the bolt fixing hole, and then the protection screen and the holding cylinder assembly are fixedly connected together.

[0032] Further, the material of the protection screen is selected as red copper material with better magnetic isolation performance, the cooling effect is improved, the service life is prolonged, the product power consumption is reduced, and the positioning and fixing, sealing performance and insulation performance of the protection screen are combined to prevent high-temperature flue gas from entering the protection screen and burning the holder.

[0033] Further, the copper tile, the bottom ring and the protection screen are protected and fixed by special insulation sealing material, so that the overheat and burnout of the electrode shell caused by the flame and radiation heat in the furnace are fundamentally avoided, and electrode accidents are prevented.

[0034] An electrode column system comprises an electrode holder, further comprising a lifting device and a sealing and insulating component;

[0035] The top of the lifting device is provided with an electrode, and the working end of the electrode is located below the lifting device; the bottom of the lifting device is provided with a holding cylinder assembly; the electrode is located in the lifting device and the holding cylinder assembly,

[0036] One end of the sealing and insulating component is connected with the copper tile, and the other end is connected with the protection screen.

[0037] Further, the lifting device is fixedly connected with the electrode through an electrode clamping device.

[0038] Further, the bottom ring is provided with a plurality of water paths, so that the cooling effect of the cooling water on the bottom ring is improved, the service life of the bottom ring is improved, and high-temperature deformation is avoided.

[0039] Further, the protection screen is fixedly connected with the lower end of the lower holding cylinder to fix the upper part of the protection screen and bear the weight of the protection screen.

[0040] Further, the conductive copper pipe is connected to the left and right ends of the electrode holder, and is extended downward along the holding cylinder assembly and connected to the copper tile.

[0041] Compared with the prior art, the beneficial effects of the present application are as follows:

[0042] The application prolongs the service life of the electrode holder system, improves the operation rate of the electric furnace, and the bottom ring and the protection screen also play the protection role of placing and sealing the electric furnace gas and preventing the high-temperature damage to the electrode equipment; the protection screen is made of Cu99.99% copper material, has no magnetism, and has superior circulating cooling effect, and the protection screen is designed as a segmented structure, so that the whole protection screen can be replaced due to the lower burning loss, and the maintenance cost is reduced; the diameter of the bottom ring is larger than that of the protection screen, the protection screen is specially designed to be seated on the bottom ring, so that the protection screen is prevented from directly contacting the flame in the furnace and being burned, and the service life is improved; the copper tile, the bottom ring and the protection screen are protected and fixed by special insulation sealing materials, so that the overheat burning of the electrode shell caused by the flame and the radiation heat in the furnace is fundamentally avoided, and the electrode accident is eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a whole structure schematic diagram of the electrode column system in the application;

[0044] Figure 2 It is a partial structure diagram of the electrode holder in the application;

[0045] Figure 3 It is an enlarged view of A part of Figure 1 ;

[0046] Figure 4 It is an enlarged view of B part of Figure 1 ;

[0047] Figure 5 It is a structure schematic diagram of the bottom ring in the prior art;

[0048] Figure 6 It is an A-A sectional view of Figure 5 ;

[0049] Figure 7 It is a B-B sectional view of Figure 5 ;

[0050] Figure 8 It is a cooling water flow direction schematic diagram of Figure 5 ;

[0051] Figure 9 It is a structure schematic diagram of the bottom ring in the embodiment 1 of the application;

[0052] Figure 10 It is an A-A sectional view of Figure 9 ;

[0053] Figure 11 Figure 1 is a B-B sectional view of the electrode holder system of the present application; Figure 9

[0054] Figure 2 is a C-C sectional view of the electrode holder system of the present application; Figure 12 Figure 9

[0055] Figure 13 Figure 4 is a schematic view of the cooling water flow of the electrode holder system of the present application; Figure 9 Reference numerals: 1. electrode holder; 2. electrode; 3. bottom ring; 4. hanging rod; 5. copper tile; 6. upper protective screen; 7. lower protective screen; 8. pressure ring; 9. gland; 10. bellows; 11. pressing block; 12. hanging device; 13. sealed insulation part; 14. pressure ring hanging point; 15. bottom ring hanging part; 16. lifting device; 17. hanging piece; 18. conductive copper pipe; 19. clasp; 20. upper holding cylinder; 21. lower holding cylinder; 22. cooling water pipeline; 23. pressure ring hanging lug; 24. electrode clamping device; 25. bottom ring water inlet; 26. bottom ring water return.

[0056] DETAILED DESCRIPTION

[0057] In order to make the purpose and technical scheme of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with examples.

[0058] Example 1

[0059] An electrode holding system as shown in Figure 1, comprising an electrode holder 1 and a lifting device 16, an electrode holder 1 as shown in Figure 2, comprising a pressing block 11, a holding cylinder assembly, an electrode 2, a pressure ring 8, a bottom ring 3 and a protective screen; the electrode shell of the electrode 2 is surrounded by a copper tile 5; the pressing block 11 is located outside the copper tile 5, as shown in Figure 3. Figure 1 Figures 2-4 Figure 4 ​​​​​As shown, one side of the copper tile 5 is provided with an external groove, the pressing block 11 is embedded in the external groove of the copper tile 5, the pressing block 11 is located between the copper tile and the pressure ring 8, the pressing block 11 applies a certain pressing force to the copper tile 5 under the action of the pressure ring 8, the copper tile 5 is tightly attached to the electrode shell under the external pressure of the pressing block 11, and it is guaranteed that the large current from the short net passes through the water-cooled cable, the annular copper pipe, the water-cooled conductive vertical pipe and the copper tile 5 to the electrode 2, and in working, the expander of the corrugated pipe 10 one-to-one presses the conductive copper tile 5 on the electrode 2, so that each copper tile 5 is tightly combined with the electrode 2, and the phenomenon of arc between the copper tile 5 and the electrode 2 caused by uneven current and uneven contact pressure is avoided. The bottom ring 3 is provided with a protection screen supporting surface, the height of the protection screen supporting surface is 150mm, and the width is 70mm, which effectively prolongs the service life of the bottom ring 3. And the diameter of the bottom ring 3 is larger than the diameter of the protection screen, and the protection screen can be completely seated on the protection screen supporting surface of the bottom ring 3, so that the lower edge of the protection screen directly contacts the flame in the furnace in harsh conditions, thereby improving the service life of the protection screen. The protection screen includes an upper section protection screen 6 and a lower section protection screen 7, the lower end of the upper section protection screen 6 is provided with an embedded hook 19, the upper end of the lower section protection screen 7 is provided with a hook groove, and the embedded hook 19 of the upper section protection screen 6 cooperates with the hook groove of the lower section protection screen 7. The upper and lower section structure of the protection screen can avoid replacing the whole protection screen due to the burning of the lower part of the protection screen, thereby reducing the maintenance cost. The upper section protection screen 6 is provided with a protection screen water inlet, a protection screen water return and a bolt fixing hole, the cooling water pipeline is composed of many water pipes, including an inlet pipe and a return pipe, the protection screen water inlet is connected with the inlet pipe of the cooling water pipeline 22, the protection screen water return is connected with the return pipe of the cooling water pipeline 22, the protection screen and the holding cylinder assembly are fixed and connected together by fixing the lower flange of the holding cylinder assembly in the bolt fixing hole. The material of the protection screen is selected from red copper material with better magnetic isolation performance, which improves the cooling effect, prolongs the service life and reduces the product power consumption. In combination with the positioning and fixing, sealing performance and insulation performance of the protection screen, the high-temperature flue gas is prevented from entering the protection screen to burn the holder component. The copper tile 5, the bottom ring 3 and the protection screen are fixed by special insulation sealing material, so that the electrode shell is prevented from being overheated and burned by the flame and radiant heat in the furnace, and electrode accidents are avoided.

[0060] The outer side of the copper tile 5 is further provided with a pressure ring 8, the pressure ring 8 is located at the lower end of the holding cylinder assembly, the lower end of the pressure ring 8 is provided with a bottom ring 3, the electrode 2 is located at the inner side of the pressure ring 8, and a sealing insulation part 13 is arranged between the pressure ring 8 and the bottom ring 3; the bottom ring 3 is provided with a protection screen supporting surface, and the lower end of the protection screen is fixed on the protection screen supporting surface through the embedded hook 19. The electrode 2 has a cylindrical structure, 12 copper tiles 5 are arranged circumferentially around one electrode 2, and the number of the combined copper tiles 5 can be changed to appropriately change the diameter of the electrode 2. Specifically, for example Figure 3As shown, the outer side of the copper tile 5 is provided with a pressure ring 8, the pressure ring 8 is fixed above the bottom ring 3, and a sealing insulation part 13 is arranged between the pressure ring 8 and the bottom ring 3, the upper end of the pressure ring 8 is movably connected with one end of a hanging piece, the other end of the hanging piece is provided with an L-shaped groove, the lower section protection screen 7 is fixed in the L-shaped groove together with the upper section protection screen 6 through a hook 19 structure, and the pressure ring 8, the hanging piece 17 and the copper tile 5 are all located inside the protection screen.

[0061] The upper end of the electrode 2 is fixed with a holding cylinder assembly, the holding cylinder assembly includes an upper holding cylinder 20 and a lower holding cylinder 21, the lower end of the upper holding cylinder 20 is fixedly connected with the upper end of the lower holding cylinder 21, the copper tile 5 is hung on the holding cylinder assembly through the hanging device 12 on the copper tile 5, specifically hung on the lower holding cylinder 21. The outer side of the lower holding cylinder 21 is provided with a cooling water pipeline 22; the lower end of the cooling water pipeline 22 is provided with a plurality of conductive copper pipes 18, and the conductive copper pipes 18 are located outside the holding cylinder assembly. The conductive copper pipes 18 are connected with the copper tile; the cooling water pipeline 22 is connected with the conductive copper pipes 18. The bottom ring 3 can be provided with multiple bottom rings according to actual needs, and the bottom ring 3 is provided with a bolt hole, the adjacent bottom rings 3 are fixedly connected through bolts, and the bolts are inserted into the bolt holes of the bottom rings 3. The bottom ring 3 is also provided with a bottom ring hanging part 15, a through hole is formed in the bottom ring hanging part 15, and a pressure ring hanging point 14 is arranged on the pressure ring 8, as shown in Figure 3 As shown, the pressure ring hanging point 14 of the pressure ring 8 near the copper tile 5 and the through hole of the bottom ring hanging part 15 of the bottom ring 3 are fixedly connected through a screw, as shown in FIG. 4, the pressure ring 8 is arranged on one side of the copper tile 5, the pressure ring lug 23 is arranged on the side surface of the pressure ring 8, and the pressure ring lug 23 is hung on the outer side surface of the lower holding cylinder 21 through the hanging rod 4; the connection part of the upper section protection screen 6 and the lower section protection screen 7 near the copper tile 5 is also provided with a J-shaped hook, and the J-shaped hook is connected with the hanging rod 4.

[0062] The pressure ring 8 is provided with a mounting hole for assembling the bellows 10, and the gland 9 of the bellows 10 is located on the outer side surface of the pressure ring 8. The pressure ring 8, the bellows 10 and the bottom ring 3 are combined into one body, and a containing cavity is formed between the pressure ring 8, the bellows 10 and the bottom ring 3, thereby enhancing the connection of the bottom ring 3. One end of the bellows 10 is connected with the gland 9, and the other end is connected with a telescopic part. The outer oil circuit of the bellows 10 cancels the sealing ring, and the exhaust passage of the bellows 10 is increased. The bottom ring 3 is provided with a bottom ring water inlet 25 and a bottom ring water return 26, the bottom ring water inlet 25 is connected with the water inlet pipeline of the cooling water pipeline 22; and the bottom ring water return 26 is connected with the water return pipeline of the cooling water pipeline 22.

[0063] As shown in Figure 1The electrode column system shown includes an electrode holder 1 and a lifting device 16; the top of the lifting device 16 is provided with an electrode 2, the bottom of the electrode 2 is an electrode working end, and the electrode working end is located below the lifting device 16; the bottom of the lifting device 16 is provided with a holding cylinder assembly; the electrode 2 passes through an upper holding cylinder 20 and a lower holding cylinder 21 and extends below a bottom ring 3. The lifting device 16 is fixedly connected with the electrode through an electrode clamping device 24. The bottom ring 3 is provided with a multi-path water channel, thereby improving the cooling effect of cooling water on the bottom ring 3, improving the service life of the bottom ring 3 and avoiding high-temperature deformation, such as Figures 5-8 The bottom ring 3 structure shown is relatively common in the prior art, and the flow direction of the cooling water is relatively single, and Figures 9-13 The improved bottom ring 3 structure has a multi-path flow direction of the cooling water, thereby improving the cooling effect. A protection screen is fixedly connected with the lower end of the lower holding cylinder 21, thereby playing a role of fixing the upper part of the protection screen and bearing the weight of the protection screen. A conductive copper pipe 18 is connected with the left and right ends of the electrode holder 1, extends downward along the lower holding cylinder 21 and is connected with a copper tile.

[0064] Specifically, the working principle of the electrode column system in the present application is as follows: the present application is composed of a multi-hoisting-point hoisting, a bottom ring 3 with a multi-path water channel design and a protection screen made of full-copper material and designed in an upper-lower segmented manner. The bottom ring 3 is combined with a pressure ring bellows 10 into an integrated whole, the new copper protection screen designed in an upper-lower segmented manner is arranged on the bottom ring 3, and special insulating sealing materials are used to protect and fix the copper tile, the bottom ring 3 and the protection screen, thereby fundamentally avoiding overheat burning of the electrode shell caused by the flame and radiant heat in the furnace and eliminating the electrode 2 accidents. The protection screen is made of copper material and designed in an upper-lower segmented manner, thereby achieving the purposes of demagnetization, power saving, increased output and reduced maintenance cost. The electrode holder 1 is used to transmit strong current to the electrode working end, performs arc combustion in the furnace to convert electric energy into heat energy to achieve the required working condition of the furnace, and performs electrode 2 pressure release and lifting to achieve the purposes of prolonging and adjusting the electrode sintering speed and continuously working the electrode 2. The bottom ring 3 and the protection screen mainly play the roles of sealing the escape of the furnace gas of the ore-smelting furnace and preventing high-temperature damage to the electrode equipment.

[0065] The above is only an embodiment of the present application, which is described in detail, but should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. An electrode holder characterized by comprising: Includes clamping block, gripping cylinder assembly, electrode, pressure ring, bottom ring, and protective screen; The electrode shell of the electrode is surrounded by copper tiles; A pressure ring is attached to the outer side of the copper tile. The copper tile is pressed tightly against the electrode shell under the external pressure of the pressure ring. The pressure ring is located at the lower end of the holding cylinder assembly. A bottom ring is provided at the lower end of the pressure ring, and the electrode is located inside the pressure ring. A protective screen support surface is provided on the bottom ring. The lower end of the protective screen is fixed to the protective screen support surface by an embedded hook. The clamping block is located between the copper tile and the pressure ring; The electrode is fixed with a holding tube assembly, which includes an upper holding tube and a lower holding tube. The lower end of the upper holding tube is fixedly connected to the upper end of the lower holding tube. The copper tile is suspended on the holding tube assembly by a hanging device on the copper tile. A cooling water pipe is provided on the outer side of the lower gripping cylinder; a conductive copper pipe is provided at the lower end of the cooling water pipe, and the conductive copper pipe is located on the outer side of the gripping cylinder assembly; the conductive copper pipe is connected to the copper tile; the cooling water pipe is connected to the conductive copper pipe. The pressure ring is provided with mounting holes for assembling bellows. The bellows cap is located on the outer side of the pressure ring, and the pressure ring, bellows, and bottom ring are combined as one unit. The bottom ring is provided with a bottom ring inlet and a bottom ring outlet. The cooling water pipeline includes an inlet pipe and a return pipe. The bottom ring inlet is connected to the inlet pipe of the cooling water pipeline, and the bottom ring outlet is connected to the return pipe of the cooling water pipeline.

2. An electrode holder according to claim 1, characterized in that The bottom ring is provided with bolt holes, and adjacent bottom rings are fixedly connected by bolts provided in the bolt holes; the bottom ring is also provided with a bottom ring hanging part, and a through hole is opened on the bottom ring hanging part. The side of the pressure ring is provided with a pressure ring hanging point and a pressure ring lifting lug. The pressure ring hanging point is fixedly connected to the bottom ring by the mounting fastener provided in the through hole, and the pressure ring lifting lug is fixedly connected to the protective screen.

3. The electrode holder of claim 1, wherein The protective screen includes an upper protective screen and a lower protective screen. The lower end of the upper protective screen is provided with an embedded hook, and the upper end of the lower protective screen is provided with a hook groove. The embedded hook of the upper protective screen and the hook groove of the lower protective screen cooperate with each other.

4. An electrode holder according to claim 3, wherein The upper protective screen is provided with a protective screen water inlet, a protective screen water return outlet and bolt fixing holes. The protective screen water inlet is connected to the water inlet pipe of the cooling water pipeline, and the protective screen water return outlet is connected to the water return pipe of the cooling water pipeline. The protective screen and the handle cylinder assembly are fixedly connected together by fixing the lower flange bolts of the handle cylinder assembly in the bolt fixing holes.

5. The electrode holder of claim 1, wherein The clamping block is embedded in the outer groove of the copper tile and applies clamping force to the copper tile under the action of the pressure ring.

6. An electrode post system, characterized by, The electrode holder according to any one of claims 1-5 is further comprising a lifting device and an electrode clamping device; The lifting device has an electrode at its top, with the working end of the electrode located below the lifting device; a holding cylinder assembly is located at the bottom of the lifting device; the electrode extends through the holding cylinder assembly to below the bottom ring. The lifting device is fixedly connected to the electrode via an electrode clamping device.

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