Conductive copper shaft device of electroslag remelting furnace

Abstract

The utility model relates to a conductive copper shaft device of an electroslag remelting furnace. A material rod cooling device is arranged in a material rod; a copper sleeve device is arranged on the outer side of the material rod; a copper bush device cooling device is arranged in an independent cavity formed between a waterproof copper bush of the copper bush device and an external copper shaft; the material rod cooling device and the copper sleeve device cooling device respectively form an independent cooling water path; the technical effects of high cooling efficiency and no sealing ring are achieved, and the problems that a sealing ring mechanism at the lower end of the conductive copper shaft is affected by environment such as high temperature for a long time, deteriorates and loses efficacy and is prone to water leakage, and the water cooling efficiency of single-path water circulation is low are mainly solved. The sealing reliability and the water cooling efficiency of water circulation of the conductive copper shaft device are improved, the on-site maintenance frequency and the maintenance intensity of workers are reduced, and stable operation of on-site smelting production is guaranteed.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to a conductive copper shaft device, especially to a conductive copper shaft device of electroslag remelting furnace. BACKGROUND

[0002] The conductive copper shaft is one of the components in the electroslag remelting furnace, and its copper shaft terminal surface is tightly attached to the surface of the dummy electrode in the working process, large current is conducted to the dummy electrode, and then the large current is conducted to the consumable electrode by the dummy electrode. Since the whole conductive copper shaft structure is large and the current density passing through is large, it works in a high temperature environment for a long time, and the sealing reliability of water circulation is required to be good and the water cooling efficiency is required to be high.

[0003] The existing conductive copper shaft device of electroslag remelting furnace is designed, the structure of the lower end part of the copper shaft is relatively complex, and is assembled from multiple parts, and a sealing ring mechanism is used between the parts. Since the copper shaft lower end is attached to the dummy electrode, the temperature is very high, the sealing ring is affected by high temperature and is prone to deterioration and failure, and water leakage is easy. In addition, the water circulation channel adopts single water design, the cooling water flows into the cavity between the conductive copper shaft and the material rod through the water inlet at the upper end of the conductive copper shaft device, then enters the inner core of the material rod through the water return hole at the bottom of the material rod, and finally flows out through the water outlet at the upper end. That is, the cooling of the conductive copper shaft and the material rod shares a water path, and the cooling efficiency is low, and the accumulated heat cannot be removed in time. Therefore, the above-mentioned design structure is prone to water leakage under high temperature and the like for a long time, resulting in high maintenance frequency and high maintenance intensity of workers on site, and sometimes even needs to be overhauled, seriously delays the smelting time on site, and affects the production progress. UTILITY MODEL CONTENTS

[0004] The purpose of the embodiment of the utility model is to provide a conductive copper shaft device of electroslag remelting furnace, which has high cooling efficiency and does not use a sealing ring.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model designs a conductive copper shaft device of electroslag remelting furnace, which comprises:

[0006] A material rod;

[0007] A material rod cooling device is arranged in the material rod;

[0008] A copper sleeve device is arranged on the outside of the material rod; the copper sleeve device is used for the large current conduction of the conductive copper shaft device of electroslag remelting furnace;

[0009] A copper sleeve device cooling device is arranged in the copper sleeve device;

[0010] The material rod cooling device and the copper sleeve device cooling device respectively form separate cooling water paths.

[0011] Further, the electric conductive copper shaft device of the electric-shock remelting furnace has the driving device further comprising:

[0012] The driving device is arranged above the material rod;

[0013] The material rod is fixedly connected to the driving end of the driving device;

[0014] The insulating device is arranged at the end of the copper sleeve device.

[0015] The ball lock device is arranged at the end of the material rod and at the inner side of the insulating device; during the process of driving the material rod to be adjusted upwardly, the ball lock device locks the dummy electrode so as to keep the dummy electrode stable.

[0016] Further, the electric conductive copper shaft device of the electric-shock remelting furnace has the driving device further comprising:

[0017] The clamping air cylinder is fixed to the outer copper shaft fixing flange plate of the copper sleeve device through four long connecting rods;

[0018] The top support is connected with the lower end of the piston rod of the clamping air cylinder through the protruding shaft sleeve at the upper end of the top support, and the top support moves up and down together with the piston rod of the clamping air cylinder; four sliding guide holes are arranged on the top support, and the four long connecting rods pass through each guide hole respectively, and the top support slides up and down along the long connecting rods; the upper end of the material rod is connected with the bottom surface of the top support and moves up and down together with the top support.

[0019] Further, the electric conductive copper shaft device of the electric-shock remelting furnace has the ball lock device further comprising:

[0020] The dummy electrode holder is clamped into the dummy electrode holder at the end of the material rod;

[0021] The dummy electrode clamping ring is sleeved into the dummy electrode clamping ring outside the dummy electrode holder;

[0022] A plurality of ceramic balls are mounted outside the dummy electrode holder; the dummy electrode clamping ring is sleeved on and adhered to the outer cylindrical surface of the lower part of the dummy electrode holder; the protruding part at the upper end of the dummy electrode is inserted into the counterbore at the bottom of the dummy electrode holder and connected with the dummy electrode holder; when the dummy electrode clamping ring moves downwardly relative to the dummy electrode holder, the ceramic balls are pushed to lock the dummy electrode, so that the dummy electrode is kept stable.

[0023] Further, the electric conductive copper shaft device of the electric-shock remelting furnace has the material rod cooling device further comprising:

[0024] a material rod cooling water inlet pipe is fixed on the top end surface of the material rod;

[0025] a material rod cooling water return pipe is fixed on the top end surface of the material rod;

[0026] The material rod cooling water inlet pipe extends from the water inlet of the upper end of the material rod to the bottom end of the core inside the material rod; the material rod cooling water flows downward through the bottom of the material rod through the material rod cooling water inlet pipe, and then flows upward to the top of the material rod through the core cavity of the material rod, and is discharged through the material rod cooling water return pipe.

[0027] Further, in the electric-shock remelting furnace conductive copper shaft device, the copper sleeve device further comprises:

[0028] a water-proof copper sleeve, the water-proof copper sleeve is sleeved outside the material rod; and an external copper shaft is sleeved outside the water-proof copper sleeve.

[0029] a copper shaft welding terminal, the copper shaft welding terminal is arranged outside the false electrode clamping ring;

[0030] an external copper shaft, the copper shaft welding terminal is connected with the external copper shaft through welding;

[0031] a copper shaft terminal, the copper shaft terminal is fixed below the copper shaft welding terminal through bolts;

[0032] Further, in the electric-shock remelting furnace conductive copper shaft device, the copper sleeve device cooling device further comprises:

[0033] a copper shaft cooling water inlet pipe, the copper shaft cooling water inlet pipe is fixedly connected on the external copper shaft of the copper sleeve device;

[0034] a copper shaft cooling water return pipe, the copper shaft cooling water return pipe is fixedly connected on the external copper shaft of the copper sleeve device;

[0035] The external copper shaft and the water-proof copper sleeve form an independent cavity, the copper shaft cooling water inlet pipe extends from the water inlet of the upper end of the external copper shaft to the bottom end of the external copper shaft; the copper shaft cooling water flows downward through the bottom of the external copper shaft through the copper shaft cooling water inlet pipe, and then flows upward to the top of the external copper shaft through the independent cavity formed between the external copper shaft and the water-proof copper sleeve, and is discharged through the copper shaft cooling water return pipe.

[0036] Further, in the electric-shock remelting furnace conductive copper shaft device, the insulation device further comprises:

[0037] An upper insulation pad is arranged between the upper part of the dummy electrode clamp ring and the copper shaft welding terminal;

[0038] An outer insulation pad is sleeved into the outer side of the dummy electrode clamp ring;

[0039] A bottom insulation pad is fixed at the bottom of the dummy electrode clamp ring.

[0040] Further, in the electric-shock heavy melting furnace conductive copper shaft device, a cross slot is arranged at the connection between the material rod and the top support, and the material rod cooling water inlet pipe and the material rod cooling water return pipe are arranged in the cross slot.

[0041] Further, in the electric-shock heavy melting furnace conductive copper shaft device, the copper shaft cooling water inlet pipe penetrates through the outer copper shaft and enters the inside of the outer copper shaft, and the copper shaft cooling water return pipe penetrates through the outer copper shaft and is connected to the outside.

[0042] Compared with the prior art, the embodiment of the present application has the following advantages: the material rod cooling device is arranged in the material rod, the copper sleeve device is arranged on the outside of the material rod, the copper sleeve device cooling device is arranged in the independent cavity formed between the water-proof copper sleeve of the copper sleeve device and the outer copper shaft, and the material rod cooling device and the copper sleeve device cooling device form separate cooling water paths.

[0043] The electric-shock heavy melting furnace conductive copper shaft device has the following advantages: the structure design is more reasonable, the connection and combination of multiple parts at the lower end of the conductive copper shaft are achieved by welding, the sealing ring mechanism is abandoned, no sealing ring is needed, the problem that the sealing ring mechanism is easily damaged and leaks due to the influence of high temperature and other environments for a long time is avoided, the sealing reliability of water circulation is improved, the water circulation channel of the conductive copper shaft device adopts two-way water design, one way of water is for the conductive copper shaft, and the other way of water is for the material rod core shaft, the two-way water circulation channels are separated by the cavity formed between the outside of the material rod and the inside of the water-proof copper sleeve and do not affect each other, and the water cooling efficiency of the whole device is improved.

[0044] The utility model discloses can reach high cooling efficiency, and, the technical effect of not using sealing washer, mainly solve the problem of the sealing washer mechanism of the lower end part of the conductive copper shaft being affected by high temperature and being metamorphosed and failing to leak water easily for a long time and the problem of low single -path water circulation water cooling efficiency, to improve the sealing reliability and water cooling efficiency of the water circulation of the conductive copper shaft device, reduce the maintenance frequency and the maintenance strength of the worker of the scene, guarantee the stable operation of the scene smelting production. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is the external structure schematic diagram of the utility model;

[0046] Figure 2 It is the internal structure schematic diagram of the utility model;

[0047] Figure 3 It is the structure schematic diagram of the lower half of the utility model;

[0048] Figure 4 It is the A-A direction enlarged partial structure schematic diagram of the utility model;

[0049] Figure 5 It is the B-B direction enlarged partial structure schematic diagram of the utility model.

[0050] In the drawing: 1-clamping cylinder, 2-top support, 3-rod cooling water inlet pipe, 4-rod cooling backwater pipe, 5-copper shaft cooling water inlet pipe, 6-copper shaft cooling backwater pipe, 7-rod, 8-water isolation copper sleeve, 9-external copper shaft, 10-pseudo electrode holder, 11-upper insulating pad, 12-pseudo electrode clamping ring, 13-outer insulating pad, 14-bottom insulating pad, 15-copper shaft terminal, 16-pseudo electrode, 17-copper shaft welding terminal, 18-cross slot, 100-rod cooling device, 200-copper sleeve device, 300-copper sleeve device cooling device, 400-driving device, 500-insulating device, 600-ball lock device. DETAILED DESCRIPTION

[0051] To make the purpose, technical scheme and advantage of the utility model more clear, the following will combine the drawings and carry out the detailed elaboration to each embodiment of the utility model. However, the ordinary skilled in the art can understand that in each embodiment of the utility model, many technical details are proposed to make the reader better understand the present application. However, even if there is no these technical details and various changes and modifications based on the following each embodiment, the technical scheme claimed in each claim of the present application can be realized.

[0052] The embodiment of the utility model relates to a kind of electric-shock remelting furnace conductive copper shaft device, as shown in Fig. Figures 1 to 5 It includes:

[0053] A material rod cooling device 100 is arranged inside the material rod 7, and the material rod cooling device 100 is used for cooling the inside of the material rod 7.

[0054] A copper sleeve device 200 is arranged outside the lower part of the material rod 7, and the copper sleeve device is used for the large current conduction of the electrically conductive copper shaft device of the electric slag remelting furnace in the embodiment.

[0055] A copper sleeve device cooling device 300 is arranged inside the copper sleeve device 200, and the copper sleeve device cooling device 300 is used for cooling the copper sleeve device 200.

[0056] The material rod cooling device 100 and the copper sleeve device cooling device 300 form separate cooling water channels, respectively. The water circulation channel of the electrically conductive copper shaft device adopts a two-way water design, one way of water for the electrically conductive copper shaft and the other way of water for the material rod core shaft, and the two-way water circulation channels are separated by the cavity formed between the outside of the material rod and the inside of the water-proof copper sleeve, and do not affect each other, thereby improving the water cooling efficiency of the whole device. The utility model can achieve high cooling efficiency, and the technical effect of not using a sealing ring, mainly solves the problems of the sealing ring mechanism of the lower end of the electrically conductive copper shaft being easily affected by high temperature and other environments and being metamorphosed and invalid and water leakage, and the problem of low single-way water circulation water cooling efficiency, so as to improve the sealing reliability and water cooling efficiency of the water circulation of the electrically conductive copper shaft device, reduce the maintenance frequency and the maintenance strength of workers on site, and ensure the stable operation of smelting production on site.

[0057] In order to achieve the above technical effects, in the electrically conductive copper shaft device of the electric slag remelting furnace in the embodiment, as shown in Figures 1 to 5 , the driving device 400 further comprises:

[0058] A driving device 400 is arranged above the material rod 7.

[0059] The material rod 7 is fixedly connected to the driving end of the driving device 400, and the driving device 400 drives the movement of the material rod 7.

[0060] An insulating device 500 is arranged at the end of the copper sleeve device 200, and the insulating device 500 is used for the insulation between the copper sleeve device 200 and the false electrode clamping ring 12.

[0061] A ball lock device 600 is arranged at the end of the material rod 7 and inside the insulating device 500, and the ball lock device 600 locks the false electrode 16 during the upward driving of the material rod 7 by the driving device 400, so that the false electrode 16 is kept stable.

[0062] In order to achieve the above technical effects, in the electrically conductive copper shaft device of the electric slag remelting furnace in the embodiment, as shown in Figures 1 to 5 , the driving device 400 further comprises:

[0063] The clamping air cylinder 1 is fixed to the outer copper shaft 9 fixed flange plate of the copper sleeve device 200 through four long connecting rods, and the clamping air cylinder 1 is used for driving the top support 2.

[0064] The top support 2 is connected with the lower end of the piston rod of the clamping cylinder 1 through the protruding sleeve at the upper end, and moves up and down with the piston rod of the clamping cylinder 1; four sliding guide holes are arranged on the top support 2, and four long connecting rods pass through each guide hole respectively, and the top support 2 slides up and down along the long connecting rods; the upper end of the material rod 7 is connected with the bottom surface of the top support 2 and moves up and down with the top support 2.

[0065] In order to achieve the above technical effects, in the electric remelting furnace conductive copper shaft device in the embodiment, as shown in the figure, Figures 1 to 5 The ball lock device 600 further comprises:

[0066] The end of the material rod 7 is clamped into the dummy electrode holder 10;

[0067] The dummy electrode clamping ring 12 is sleeved outside the dummy electrode holder 10;

[0068] The copper shaft welding terminal 17 is arranged outside the dummy electrode clamping ring 12;

[0069] A plurality of ceramic balls are mounted outside the dummy electrode holder 10; the dummy electrode clamping ring 12 is sleeved on and adheres to the outer cylindrical surface of the lower part of the dummy electrode holder 10; the protruding part at the upper end of the dummy electrode 16 extends into the counterbore at the bottom of the dummy electrode holder 10 and is connected with the dummy electrode holder 10; when the dummy electrode clamping ring 12 moves downward relative to the dummy electrode holder 10, the ceramic balls are pushed to lock the dummy electrode 16, so that the dummy electrode 16 is kept stable.

[0070] In order to achieve the above technical effects, in the electric remelting furnace conductive copper shaft device in the embodiment, as shown in the figure, Figures 1 to 5 The material rod cooling device 100 further comprises:

[0071] The material rod cooling inlet pipe 3 is fixed on the top end surface of the material rod 7;

[0072] The material rod cooling return pipe 4 is fixed on the top end surface of the material rod 7;

[0073] The material rod cooling inlet pipe 3 extends from the water inlet at the upper end of the material rod 7 to the bottom end of the core inside the material rod 7; the material rod cooling water flows downward through the bottom of the material rod 7 through the material rod cooling inlet pipe 3, and then flows upward to the top of the material rod through the core cavity of the material rod 7 and is discharged through the material rod cooling return pipe 4. The material rod cooling inlet pipe 3 and the material rod cooling return pipe 4 constitute a separate cooling water circuit.

[0074] In order to achieve the above technical effects, in the electric remelting furnace conductive copper shaft device in the embodiment, as shown in the figure, Figures 1 to 5 The copper sleeve device 200 further comprises:

[0075] Waterproof copper sleeve 8, the outer side of the material rod 7 into waterproof copper sleeve 8; In the outer side of waterproof copper sleeve 8 into the outer copper shaft 9.

[0076] Copper shaft welding terminal 17 and the outer copper shaft 9 are connected by welding; Copper shaft welding terminal 17 and the outer copper shaft 9 are welded, without sealing ring installation, to prevent water leakage.

[0077] The copper shaft terminal 15 is fixed below the copper shaft welding terminal 17; The copper shaft terminal 15 is installed below the copper shaft welding terminal 17.

[0078] In the working process, the bottom plane of the copper shaft terminal 15 of the copper sleeve device 200 completely matches the surface of the dummy electrode 16. A large current is conducted to the dummy electrode 16 by the copper sleeve device 200, and then conducted to the consumable electrode by the dummy electrode 16, to supply power for the electroslag remelting process.

[0079] In order to achieve the above technical effects, in the conductive copper shaft device of the electroslag remelting furnace in the embodiment, as shown in Figures 1 to 5 The copper sleeve device cooling device 300 further comprises:

[0080] The copper shaft cooling water inlet pipe 5 is fixedly connected to the outer copper shaft 9 of the copper sleeve device 200;

[0081] The copper shaft cooling water return pipe 6 is fixedly connected to the outer copper shaft 9 of the copper sleeve device 200; The copper shaft cooling water inlet pipe 5 and the copper shaft cooling water return pipe 6 constitute a single cooling water circuit.

[0082] An independent cavity is formed between the outer copper shaft 9 and the waterproof copper sleeve 8, the copper shaft cooling water inlet pipe 5 extends from the water inlet at the upper end of the outer copper shaft 9 to the bottom end of the outer copper shaft 9; The copper shaft cooling water flows downward through the bottom of the outer copper shaft 9, and then flows upward to the top of the outer copper shaft through the independent cavity formed between the outer copper shaft 9 and the waterproof copper sleeve 8, and is discharged through the copper shaft cooling water return pipe 6.

[0083] In order to achieve the above technical effects, in the conductive copper shaft device of the electroslag remelting furnace in the embodiment, as shown in Figures 1 to 5 The insulation device 500 further comprises:

[0084] An upper insulation pad is arranged between the copper shaft welding terminal 17 of the copper sleeve device 200 and the dummy electrode clamping ring 12;

[0085] An outer insulation pad 13 is sleeved outside the dummy electrode clamping ring 12;

[0086] A bottom insulation pad 14 is fixed at the bottom of the dummy electrode clamping ring 12. The upper insulation pad 11, the outer insulation pad 13 and the bottom insulation pad 14 constitute the structure of the insulation device 500.

[0087] In order to realize the above technical effects, in the electric remelting furnace conductive copper shaft device in the embodiment, as shown in the drawings, Figures 1 to 5 A cross slot 18 is formed at the connection between the material rod 7 and the top support 2, and a material rod cooling water inlet pipe 3 and a material rod cooling water return pipe 4 are arranged in the cross slot 18. The material rod cooling water inlet pipe 3 and the material rod cooling water return pipe 4 can extend into the interior of the material rod 7 without affecting the installation of the material rod 7.

[0088] In order to realize the above technical effects, in the electric remelting furnace conductive copper shaft device in the embodiment, as shown in the drawings, Figures 1 to 5 The copper shaft cooling water inlet pipe 5 penetrates through the outer copper shaft 9 to the interior of the outer copper shaft 9, and the copper shaft cooling water return pipe 6 penetrates through the outer copper shaft 9 to be connected to the outside. Such a structure constitutes a cooling water loop.

[0089] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. An electrically conductive copper shaft apparatus for an electro- slag-remelt furnace, characterized by, Comprise: Material rod; Material rod cooling device, material rod cooling device is arranged in the inside of material rod; Copper bush device, copper bush device is arranged on the outside of material rod; Copper bush device is used for the large current conduction function of copper shaft device of electric slag remelting furnace; Copper bush device cooling device, copper bush device cooling device is arranged in the inside of copper bush device; The material rod cooling device and the copper bush device cooling device form separate cooling waterway respectively.

2. The electro-winning furnace electrically conductive copper shaft apparatus of claim 1, wherein, Also include: Driving device; Driving device is arranged above the material rod; Material rod, the material rod is fixedly connected on the driving end of driving device; Insulation device, the insulation device is arranged at the end of copper bush device; Ball lock device, the ball lock device is arranged at the end of material rod, inside the insulation device; In the process of driving the material rod to go up, the ball lock device locks the dummy electrode, and the dummy electrode remains stable.

3. The electro-winning furnace electrically conductive copper shaft apparatus of claim 2, wherein, The driving device further comprises: Clamping cylinder, the clamping cylinder is fixed on the outside copper shaft fixed flange plate of copper bush device through four long connecting rods; Top support, the upper end protruding shaft sleeve of top support is connected with the lower end of piston rod of clamping cylinder, and top support moves up and down with piston rod of clamping cylinder; Four sliding guide holes are arranged on top support, and four long connecting rods pass through each guide hole respectively; Top support slides up and down along long connecting rod; The upper end of material rod is connected with the bottom surface of top support, and material rod moves up and down with top support.

4. The electro-winning furnace electrically conductive copper shaft apparatus of claim 2, wherein, The ball lock device further comprises: Dummy electrode holder, the dummy electrode holder is clamped into the end of material rod; Dummy electrode clamping ring, the dummy electrode clamping ring is sleeved into the outside of dummy electrode holder; A plurality of ceramic balls are mounted on the outside of dummy electrode holder; Dummy electrode clamping ring is sleeved on the outer cylindrical surface of the lower part of dummy electrode holder and is attached thereto; The protruding part of the upper end of the dummy electrode extends into the counterbore at the bottom of the dummy electrode holder and is connected with the dummy electrode holder; When the dummy electrode clamping ring moves downward relative to the dummy electrode holder, the ceramic balls are pushed to lock the dummy electrode, so that the dummy electrode remains stable.

5. The electro-winning furnace electrically conductive copper shaft apparatus of claim 1, wherein, The material rod cooling device further comprises: Material rod cooling water inlet pipe, the material rod cooling water inlet pipe is fixed on the top end face of material rod; Material rod cooling water return pipe, the material rod cooling water return pipe is fixed on the top end face of material rod; The material rod cooling water inlet pipe extends from the water inlet of the upper end of the material rod to the bottom end of the core inside the material rod; The material rod cooling water flows downward through the bottom of the material rod, and then flows upward through the core cavity of the material rod to the top of the material rod, and is discharged through the material rod cooling water return pipe.

6. The electro-winning furnace electrically conductive copper shaft apparatus of claim 2, wherein, The copper bush device further comprises: Waterproof copper bush, the waterproof copper bush is sleeved on the outside of material rod; The outer copper shaft is sleeved on the outside of waterproof copper bush; Copper shaft welding terminal, the copper shaft welding terminal is arranged on the outside of dummy electrode clamping ring of ball lock device; External copper shaft, the copper shaft welding terminal is connected with the external copper shaft by welding; A copper shaft terminal is bolted below the copper shaft welding terminal.

7. The electro-winning furnace electrically conductive copper shaft apparatus of claim 1, wherein, The copper sleeve device cooling device further comprises: A copper shaft cooling water inlet pipe is fixedly connected to the outer copper shaft of the copper sleeve device. A copper shaft cooling water return pipe is fixedly connected to the outer copper shaft of the copper sleeve device. An independent cavity is formed between the outer copper shaft and the water-proof copper sleeve, the copper shaft cooling water inlet pipe extends from the water inlet at the top end of the outer copper shaft to the bottom end of the outer copper shaft, the copper shaft cooling water flows downward through the bottom of the outer copper shaft, and then flows upward through the independent cavity formed between the outer copper shaft and the water-proof copper sleeve to the top of the outer copper shaft, and is discharged through the copper shaft cooling water return pipe.

8. The electro-winning furnace electrically conductive copper shaft apparatus of claim 2, wherein, The insulation device further comprises: An outer insulation pad is sleeved on the outer side of the false electrode clamping ring of the ball lock device. An upper insulation pad is arranged between the upper part of the false electrode clamping ring and the copper shaft welding terminal. A bottom insulation pad is fixed to the bottom of the false electrode clamping ring.

9. The electro-winning furnace electrically conductive copper shaft apparatus of claim 5, wherein, A cross slot is formed at the connection between the material rod and the top support, and the material rod cooling water inlet pipe and the material rod cooling water return pipe are arranged in the cross slot.

10. The electro-winning furnace electrically conductive copper shaft apparatus of claim 7, wherein, The copper shaft cooling water inlet pipe penetrates through the outer copper shaft to the inside of the outer copper shaft, and the copper shaft cooling water return pipe penetrates through the outer copper shaft to the outside.

Images