Blanking electrode of glass melting furnace and high-level liquid waste glass curing melting furnace

Abstract

According to the blanking electrode of the glass melting furnace and the high-level liquid waste glass curing melting furnace, when external cooling air enters a heat dissipation channel of an electrode tip, the electrode tip can be cooled, and deformation of the electrode tip is avoided. The blanking electrode of the glass melting furnace comprises an electrode tip assembly and a cooling assembly. The electrode tip assembly is arranged at the bottom in the glass melting furnace; the top of the electrode tip assembly is provided with a flat-plate-shaped electrode tip, a heat dissipation channel is formed in the electrode tip, and the heat dissipation channel is arranged along the outer ring of the electrode tip. The cooling assembly comprises an air inlet pipeline and an air outlet pipeline; the air inlet pipeline and the air outlet pipeline are both arranged outside the glass melting furnace, penetrate through the side wall of the glass melting furnace and then extend into the electrode tip to be communicated with the heat dissipation channel, so that external cooling air can enter the heat dissipation channel through the air inlet pipeline to dissipate heat of the electrode tip; and then the air is discharged through the air outlet pipeline.

Description

Technical Field

[0001] This invention belongs to the field of radioactive waste liquid treatment technology, specifically relating to a glass furnace feeding electrode and a high-level radioactive waste liquid glass curing furnace. Background Technology

[0002] The radioactive waste treatment process generates a large amount of high-level radioactive waste (e.g., concentration greater than 100%). (Regarding high-level radioactive waste liquid), currently, high-level radioactive waste liquid vitrification technology is the only high-level radioactive waste liquid vitrification technology that can be applied in engineering. The working principle of high-level radioactive waste liquid vitrification technology is to use a glass furnace to melt the radioactive nuclides in the high-level radioactive waste liquid with glass and then solidify it to prevent the radioactive nuclides from entering the external environment.

[0003] Electrodes are important components that provide heat to glass furnaces. When electricity is applied to the electrodes, Joule heating is generated, which melts the glass in the glass furnace into molten glass.

[0004] The electrode consists of an electrode head and an electrode shaft. The electrode head is located inside the glass furnace and can be block-shaped or plate-shaped. The electrode shaft is fixed to the side wall of the glass furnace and extends into the furnace to connect with the electrode head. When the electrode is energized, it generates Joule heat within the glass furnace to heat the molten glass. The electrode head also heats up along with the molten glass. For plate-shaped electrode heads, the structural stability decreases significantly after heating, making them prone to deformation and affecting their normal use. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art by providing a glass furnace feeding electrode and a high-level radioactive waste liquid glass curing furnace, which can cool the electrode head when external cooling air enters the heat dissipation channel of the electrode head, thereby preventing the electrode head from deforming.

[0006] In a first aspect, embodiments of the present invention provide a glass furnace feeding electrode, which includes an electrode head assembly and a cooling assembly. The electrode head assembly is disposed at the bottom inside the glass furnace; the top of the electrode head assembly has a flat electrode head, and a heat dissipation channel is formed inside the electrode head, the heat dissipation channel being disposed along the outer circumference of the electrode head. The cooling assembly includes an air inlet pipe and an air outlet pipe; both the air inlet pipe and the air outlet pipe are disposed outside the glass furnace, and both pass through the side wall of the glass furnace and extend into the interior of the electrode head, communicating with the heat dissipation channel, so that external cooling air can enter the heat dissipation channel through the air inlet pipe to dissipate heat from the electrode head, and then be discharged through the air outlet pipe.

[0007] In some embodiments, the electrode head assembly includes an electrode head body and a cooling flange. The electrode head body is vertically disposed at the bottom of the glass melting furnace; the longitudinal cross-sectional shape of the electrode head body is T-shaped, and the electrode head body includes the electrode head and a support member, the support member being disposed at the bottom of the electrode head for supporting the electrode head. The cooling flange is annular in shape, and an annular groove is formed on the upper surface of the cooling flange; the cooling flange is fastened to the lower surface of the electrode head, so that the groove and the lower surface of the electrode head together form the heat dissipation channel. The air inlet pipe and the air outlet pipe both penetrate the outer wall of the cooling flange and communicate with the heat dissipation channel.

[0008] In some embodiments, a baffle plate is further provided in the heat dissipation channel. The baffle plate is positioned between the air inlet pipe and the air outlet pipe to separate the heat dissipation channel, so that the cooling air entering from the air inlet pipe located on one side of the baffle plate flows around the heat dissipation channel once and then flows out through the air outlet pipe located on the other side of the baffle plate.

[0009] In some embodiments, a feeding channel is provided in the middle of the electrode head body. The feeding channel runs through the electrode head and the support member from top to bottom, and the longitudinal cross-section of the feeding channel is a stepped shape that decreases in size from top to bottom.

[0010] In some embodiments, the glass furnace feeding electrode further includes a corrugated pipe. The corrugated pipe is sleeved outside the air inlet pipe and the air outlet pipe. A first end of the corrugated pipe is fixedly and sealed to the side wall of the glass furnace, and a second end of the corrugated pipe is fixedly and sealed to the outer side wall of both the air inlet pipe and the outer side wall of the air outlet pipe, so as to compensate for the displacement between the side wall of the glass furnace and the air inlet pipe and the air outlet pipe through the corrugated pipe.

[0011] In some embodiments, an insulating gasket is provided between the corrugated pipe and the sidewall of the glass furnace. A first end of the corrugated pipe is fixedly and sealed to a first end of the insulating gasket, and the sidewall of the glass furnace is fixedly and sealed to a second end of the insulating gasket.

[0012] In some embodiments, the glass furnace feeding electrode further includes a thermocouple tube. The thermocouple tube extends from outside the glass furnace, through the second end of the corrugated pipe, and through the side wall of the glass furnace before entering the interior of the electrode head. The outer wall of the thermocouple tube is fixedly and sealed to the second end of the corrugated pipe. A thermocouple through-hole is formed inside the thermocouple tube, allowing the sensing end of the thermocouple to pass through the through-hole and extend into the electrode head to measure the temperature of the electrode head.

[0013] In some embodiments, a thermocouple support is provided at one end of the thermocouple tube located outside the glass furnace, and the thermocouple support is used to fix the thermocouple.

[0014] In some embodiments, an air outlet is provided at one end of the air duct located outside the glass furnace, and a sound-absorbing device is provided at the air outlet.

[0015] Therefore, the glass furnace feeding electrode provided in this embodiment of the invention forms a heat dissipation channel Q inside the flat electrode head, and the air inlet and outlet pipes outside the glass furnace pass through the side wall of the glass furnace and extend into the electrode head to communicate with the heat dissipation channel Q. This allows external cooling air to enter the heat dissipation channel Q through the air inlet pipe to dissipate heat from the electrode head, and then be discharged through the air outlet pipe, thereby cooling down the electrode head after it heats up when powered on. By setting the heat dissipation channel Q along the outer ring of the electrode head, the flow field distribution of the cooling air entering the heat dissipation channel Q within the electrode head can be optimized, thereby improving the heat dissipation efficiency of the cooling air on the electrode head, improving the effect of cooling down the electrode head, and preventing the flat electrode head from deforming due to a significant decrease in structural stability after heating, thus maintaining the normal working state of the electrode head.

[0016] Secondly, embodiments of the present invention also provide a high-level radioactive waste glass curing furnace, which includes a glass furnace and glass furnace feeding electrodes as described in the first aspect. The glass furnace is used to contain glass and radioactive waste. There are multiple glass furnace feeding electrodes, and the electrode heads of these electrodes are used to heat the glass and radioactive waste within the glass furnace after energization.

[0017] The high-level radioactive waste liquid glass curing furnace provided in this embodiment of the invention has the same beneficial effects as the glass furnace feeding electrode described above, and will not be repeated here. Attached Figure Description

[0018] Figure 1 : A top view of a glass furnace feeding electrode provided in an embodiment of the present invention;

[0019] Figure 2 : A side view of a glass furnace feeding electrode provided in an embodiment of the present invention;

[0020] Figure 3 : A structural diagram of an electrode head assembly provided in an embodiment of the present invention;

[0021] Figure 4 : A partial structural diagram of a glass furnace feeding electrode provided in an embodiment of the present invention;

[0022] Figure 5 : A structural diagram of a bellows provided in an embodiment of the present invention;

[0023] Figure 6 : A structural diagram of a thermocouple support provided in an embodiment of the present invention;

[0024] Figure 7 : A structural diagram of a noise reduction device provided in an embodiment of the present invention.

[0025] Among them, 1-electrode head assembly; 2-thermocouple tube; 3-cooling assembly; 4-bellows; 5-insulating pad; 6-silencing device; 7-connector; 8-thermocouple support; 9-electrode head; 10-wind baffle; 11-cooling flange; 12-first mounting flange; 13-bellows body; 14-second mounting flange; 15-silencer pipe section; 16-connecting seat; 17-silencer; 18-connecting block; 19-pressure rod; 20-compression spring; 21-air inlet duct; 22-air outlet duct; 23-mounting frame; Q-heat dissipation channel. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1:

[0028] like Figure 1 As shown, an embodiment of the present invention provides a glass furnace feeding electrode, which is applied in a glass furnace to heat the glass body in the glass furnace.

[0029] like Figure 1 and Figure 2 As shown, the glass furnace feeding electrode includes an electrode head assembly 1 and a cooling assembly 3. The electrode head assembly 1 is located at the bottom of the glass furnace; the top of the electrode head assembly 1 has a flat electrode head 9, and a heat dissipation channel Q is formed inside the electrode head 9, which is arranged along the outer ring of the electrode head 9. The cooling assembly 3 includes an air inlet pipe 21 and an air outlet pipe 22. Both the air inlet pipe 21 and the air outlet pipe 22 are located outside the glass furnace, and both pass through the side wall of the glass furnace and extend into the interior of the electrode head 9 to communicate with the heat dissipation channel Q, so that external cooling air can enter the heat dissipation channel Q through the air inlet pipe 21 to dissipate heat from the electrode head 9, and then be discharged through the air outlet pipe 22.

[0030] For example, the electrode head assembly 1 is fixed to the bottom wall of the glass furnace.

[0031] For example, the material of the electrode head 9 can be molybdenum metal, etc. The shape of the flat electrode head 9 can be circular, rectangular, etc. Figure 1 As shown, in this embodiment, the electrode head 9 is circular in shape. In this case, as... Figure 1As shown, the heat dissipation channel Q is roughly circular in shape.

[0032] For example, both the air inlet duct 21 and the air outlet duct 22 can be made of steel. Both the air inlet duct 21 and the air outlet duct 22 can be formed by electron beam welding of multiple sub-ducts.

[0033] like Figure 1 As shown, Figure 1 The dashed lines in the diagram indicate the side wall of the glass furnace. The two ends of the air inlet pipe 21 and the air outlet pipe 22 are located inside and outside the glass furnace, respectively. The side walls of both the air inlet pipe 21 and the air outlet pipe 22 can be fixedly or movably connected to the side wall of the glass furnace, ensuring the airtightness of the glass furnace.

[0034] For example, one end of the air inlet duct 21 located outside the glass furnace is connected to a high-pressure (e.g., 0.4 MPa) cooling air duct so that cooling air can enter the heat dissipation channel Q through the air inlet duct 21 to dissipate heat from the electrode head 9.

[0035] By arranging the heat dissipation channel Q along the outer ring of the electrode head 9, the flow field distribution of the cooling air entering the heat dissipation channel Q within the electrode head 9 can be optimized, thereby improving the heat dissipation efficiency of the cooling air on the electrode head 9.

[0036] With the above settings, cooling air can flow into the heat dissipation channel Q inside the electrode head 9 to dissipate heat from the electrode head 9, thereby cooling the electrode head 9 and preventing the flat electrode head 9 from deforming due to reduced structural stability after heating, thus maintaining the normal working state of the electrode head 9.

[0037] Therefore, the glass furnace feeding electrode provided in this embodiment of the invention forms a heat dissipation channel Q inside the flat electrode head 9, and the air inlet pipe 21 and air outlet pipe 22 outside the glass furnace both pass through the side wall of the glass furnace and extend into the electrode head 9 to communicate with the heat dissipation channel Q. This allows external cooling air to enter the heat dissipation channel Q through the air inlet pipe 21 to dissipate heat from the electrode head 9, and then be discharged through the air outlet pipe 22, thereby cooling the electrode head 9. By setting the heat dissipation channel Q along the outer ring of the electrode head 9, the flow field distribution of the cooling air after entering the heat dissipation channel Q can be optimized, thereby improving the heat dissipation efficiency of the cooling air on the electrode head 9, improving the heat dissipation effect on the electrode head 9, and preventing the flat electrode head 9 from deforming due to a significant decrease in structural stability after heating, thus maintaining the normal working state of the electrode head 9.

[0038] In some embodiments, such as Figure 3As shown, the electrode head assembly 1 includes an electrode head body and a cooling flange 11. The electrode head body is vertically positioned at the bottom of the glass melting furnace; the longitudinal cross-section of the electrode head body is T-shaped, and the electrode head body includes an electrode head 9 and a support member, which is located at the bottom of the electrode head 9 to support the electrode head 9. The cooling flange 11 is annular in shape, and an annular groove is formed on the upper surface of the cooling flange 11; the cooling flange 11 is fastened to the lower surface of the electrode head 9, so that the groove and the lower surface of the electrode head 9 together form a heat dissipation channel Q. The air inlet pipe 21 and the air outlet pipe 22 both penetrate the outer wall of the cooling flange 11 and communicate with the heat dissipation channel Q.

[0039] For example, the electrode head body is vertically inserted through the bottom wall of the glass furnace and then welded to the bottom wall inside the glass furnace.

[0040] For example, such as Figure 3 As shown, the top horizontal portion of the electrode head body forms the electrode head 9, and the bottom vertical portion of the electrode head body forms the support member. The electrode head 9 and the support member can be an integral structure.

[0041] For example, the material of the cooling flange 11 can be the same as the material of the electrode head 9, such as molybdenum metal.

[0042] For example, the cooling flange 11 is attached to the lower surface of the electrode head 9 and then connected to the electrode head 9 by electron beam welding.

[0043] Combination Figure 1 and Figure 3 The outer ring shape and size of the cooling flange 11 are the same as those of the outer ring of the electrode head 9. For example, if the electrode head 9 is circular, then the cooling flange 11 is annular.

[0044] For example, after the air inlet duct 21 and the air outlet duct 22 pass through the outer wall of the cooling flange 11, they are connected to the outer wall of the cooling flange 11 by TIG welding (Tungsten Inert Gas Welding, also known as non-consumable electrode inert gas shielded arc welding).

[0045] For example, such as Figure 3 As shown, the lower surface of the electrode head 9 is provided with a mounting groove that matches the cooling flange 11. The cooling flange 11 can be inserted into the mounting groove. The mounting groove is used to position the cooling flange 11 and increase the cross-sectional area of ​​the heat dissipation channel Q.

[0046] With the above setup, the heat dissipation channel Q can be formed by the electrode head 9 and the cooling flange 11, reducing the manufacturing difficulty of the heat dissipation channel Q.

[0047] In some embodiments, combined with Figure 1 and Figure 3A baffle plate 10 is also provided in the heat dissipation channel Q. The baffle plate 10 is located between the air inlet duct 21 and the air outlet duct 22 to divide the heat dissipation channel Q, so that the cooling air entering from the air inlet duct 21 located on one side of the baffle plate 10 flows around the heat dissipation channel Q once (e.g., Figure 1 (The circular arrow line in the image) then flows out through the air outlet duct 22 located on the other side of the baffle plate 10.

[0048] For example, the heat dissipation channel Q has a rectangular cross-sectional shape, and the baffle plate 10 is a rectangular plate. The material of the baffle plate 10 can be steel. The baffle plate 10 can be welded to the cooling flange 11.

[0049] With the above settings, the cooling air can only flow in one direction within the heat dissipation channel Q, which can make full use of the cooling air introduced through the air inlet duct 21 to dissipate heat from the electrode head 9, and prevent the cooling air introduced through the air inlet duct 21 from flowing out through the air outlet duct 22 before it has fully dissipated heat from the electrode head 9, thereby improving the utilization rate of cooling air.

[0050] In some embodiments, combined with Figure 1 and Figure 3 A feeding channel is provided in the middle of the electrode head body. The feeding channel runs through the electrode head 9 and the support from top to bottom, and the shape of the longitudinal section of the feeding channel is a stepped shape that decreases from large to small in the direction from top to bottom.

[0051] Understandably, the molten glass inside the glass furnace flows out through the feeding channel to the external storage tank.

[0052] By setting up a stepped feeding channel, the molten glass can enter the storage tank smoothly, effectively preventing splashing after the molten glass enters the storage tank.

[0053] In some embodiments, such as Figure 4 As shown, the glass furnace feeding electrode also includes a corrugated pipe 4. The corrugated pipe 4 is sleeved outside the air inlet pipe 21 and the air outlet pipe 22. The first end of the corrugated pipe 4 is fixed and sealed to the side wall of the glass furnace, and the second end of the corrugated pipe 4 is fixed and sealed to the outer side wall of the air inlet pipe 21 and the outer side wall of the air outlet pipe 22, so as to compensate for the displacement between the side wall of the glass furnace and the air inlet pipe 21 and the air outlet pipe 22 through the corrugated pipe 4.

[0054] For example, such as Figure 5 As shown, the bellows 4 includes a first mounting flange 12, a bellows body 13, and a second mounting flange 14. The first mounting flange 12 forms the first end of the bellows 4, and the second mounting flange 14 forms the second end of the bellows 4. The two ends of the bellows body 13 are connected to the first mounting flange 12 and the second mounting flange 14 respectively by end-face welding.

[0055] For example, the first mounting flange 12 is fixed to the side wall of the glass furnace by welding. The end face of the second mounting flange 14 is provided with through holes for the air inlet pipe 21 and the air outlet pipe 22 to pass through. After the air inlet pipe 21 and the air outlet pipe 22 pass through the through holes on the end face of the second mounting flange 14, they are sealed and fixedly connected to the end face of the second mounting flange 14 by welding, so as to achieve isolation between the inside and outside environment of the glass furnace.

[0056] Understandably, the corrugated pipe body 13 can deform (compress, elongate, or bend). When the air inlet duct 21 and air outlet duct 22 deform due to thermal expansion and contraction caused by temperature changes inside the glass furnace, displacement may occur between the air inlet duct 21 and air outlet duct 22 and the side wall of the glass furnace. At this time, the corrugated pipe body 13 can compensate for the above displacement through its own deformation. Compared with the air inlet duct 21 and air outlet duct 22 being directly fixed to the side wall of the glass furnace, the displacement between the air inlet duct 21 and air outlet duct 22 and the side wall of the glass furnace can avoid stress on the side wall of the glass furnace caused by the displacement, thereby avoiding damage to the side wall of the glass furnace caused by the above stress.

[0057] In some embodiments, such as Figure 4 As shown, an insulating gasket 5 is provided between the corrugated pipe 4 and the side wall of the glass furnace. The first end of the corrugated pipe 4 is fixed and sealed to the first end of the insulating gasket 5, and the side wall of the glass furnace is fixed and sealed to the second end of the insulating gasket 5.

[0058] For example, the insulating pad 5 can be a ceramic block. The insulating pad 5 is provided with through holes for bolts to pass through.

[0059] Combination Figure 4 and Figure 5 The first mounting flange 12 is provided with threaded holes, and the side wall of the glass furnace is provided with a mounting frame 23. The bolt passes through the through holes on the insulating gasket, the mounting frame 23, and the insulating gasket 5 in sequence, and then is threadedly connected to the threaded hole on the first mounting flange 12 (the first end of the bellows 4) to achieve a fixed and sealed connection between the first end of the bellows 4 and the side wall of the glass furnace, as well as insulation between the bellows 4 and the side wall of the glass furnace.

[0060] With the above settings, the first end of the corrugated pipe 4 can be fixed and sealed to the side wall of the glass furnace, maintaining the airtightness of the glass furnace and preventing the current on the electrode head 9 from being transmitted to the side wall of the glass furnace through the air inlet pipe 21, the air outlet pipe 22, and the corrugated pipe 4.

[0061] In some embodiments, such as Figure 1 and Figure 4As shown, the glass furnace feeding electrode also includes a thermocouple tube 2. The thermocouple tube 2 extends from outside the glass furnace, through the second end of the corrugated pipe 4, and the side wall of the glass furnace before entering the electrode head 9. The outer wall of the thermocouple tube 2 is fixed and sealed to the second end of the corrugated pipe 4. A thermocouple through-hole is formed inside the thermocouple tube 2, allowing the sensing end of the thermocouple to pass through the through-hole and extend into the electrode head 9 to measure the temperature of the electrode head 9.

[0062] For example, the thermocouple tube 2 passes through the end face of the second end of the corrugated tube 4 and is fixed and sealed to the end face of the second end of the corrugated tube 4 to maintain a sealed state inside the glass furnace.

[0063] For example, external current is transmitted to electrode head 9 through thermocouple tube 2.

[0064] For example, such as Figure 3 As shown, a circular hole is provided on the side of the electrode head 9 facing the thermocouple tube 2. The thermocouple tube 2 extends into the circular hole and is connected to the electrode head 9 by TIG welding.

[0065] The electrode head 9 has an extension hole at the position corresponding to the thermocouple through hole of the thermocouple tube 2. The detection end of the thermocouple passes through the thermocouple through hole and extends into the extension hole inside the electrode head 9 to measure the temperature inside the electrode head 9.

[0066] With the above settings, the thermocouple can be inserted into the electrode head 9 to measure the temperature inside the electrode head 9, so that the current on the electrode head 9 can be adjusted according to the temperature of the electrode head 9, thereby controlling the temperature of the electrode head 9 and the temperature of the glass melt in the glass furnace.

[0067] In some embodiments, such as Figure 4 As shown, a thermocouple support 8 is provided at one end of the thermocouple tube 2 located outside the glass furnace. The thermocouple support 8 is used to fix the thermocouple.

[0068] like Figure 6 As shown, the thermocouple support 8 includes a connecting block 18, a pressure rod 19, and a compression spring 20. The connecting block 18 is a rectangular block and is fixed to the end of the thermocouple tube 2 located outside the glass furnace. A through hole is provided in the middle of the connecting block 18, the size of which allows the thermocouple to pass through. The pressure rod 19 is rotatably mounted on the connecting block 18 via a rotating shaft. The compression spring 20 is fixed to one side of the connecting block 18 by screws and abuts against the pressure rod 19.

[0069] For example, the tail end of the thermocouple (the end opposite the sensing end) has a fixing groove. When it is necessary to insert the thermocouple into the thermocouple through hole in the inner shaft tube 2, the sensing end of the thermocouple extends into the thermocouple through hole through the through hole in the middle of the connecting block 18. After the fixing groove at the tail end of the thermocouple is aligned with the pressure rod 19, the pressure rod 19 is rotated to press down the pressure rod 19. Figure 6 As shown, a portion of the pressure rod 19 is pressed into the fixing groove at the tail end of the thermocouple to secure it. At this time, the compression spring 20 can maintain the downward pressure state of the pressure rod 19 to prevent it from loosening.

[0070] With the above setup, the thermocouple can be stably fixed in the thermocouple through hole.

[0071] In some embodiments, such as Figure 1 and Figure 2 As shown, the air outlet duct 22 is located at one end outside the glass furnace and has an air outlet, and a silencer 6 is installed at the air outlet.

[0072] For example, such as Figure 6 As shown, the silencing device 6 includes a muffler pipe section 15, a connecting seat 16, and a muffler 17. The muffler pipe section 15 is used to discharge cooling air, the connecting seat 16 is used to connect the muffler pipe section 15 and the muffler 17, and the muffler 17 is used for noise reduction.

[0073] By setting the above, the volume of the cooling air discharged from the air outlet can be reduced, thereby preventing the sound of the gas discharged from the air outlet from affecting the working environment near the glass furnace feeding electrode.

[0074] In some examples, such as Figure 1 As shown, the air inlet duct 21 has an air inlet at one end outside the glass furnace, and a connector 7 is provided at the air inlet.

[0075] For example, after the first end of the connector 7 is inserted into the air inlet, it is sealed to the side wall of the air inlet duct 21 by TIG welding. The second end of the connector 7 is provided with a connecting flange so that the connector 7 can be connected to the external cooling air duct through the connecting flange.

[0076] The above settings facilitate the input of external cooling air into the air intake duct 21.

[0077] Example 2:

[0078] This invention also provides a high-level radioactive waste glass curing furnace, which includes a glass furnace and the glass furnace feeding electrodes described in Example 1. The glass furnace is used to contain the glass and radioactive waste. Multiple glass furnace feeding electrodes are provided, and the electrode heads 9 of these electrodes are used to heat the glass and radioactive waste inside the glass furnace after energization.

[0079] For example, radioactive waste can be high-level liquid waste (e.g., with a concentration greater than...). (waste liquid).

[0080] For example, by controlling the flow of alternating current through multiple glass furnace feeding electrodes, a circuit is created between the different glass furnace feeding electrodes, causing them to heat up. This can heat the glass and radioactive waste in the glass furnace into a homogeneous glass melt. After the homogeneous glass melt is cast into a solid body, the radioactive nuclides in the radioactive waste can be solidified and isolated, reducing the impact on the external biosphere.

[0081] In this embodiment, the glass furnace feeding electrode allows external cooling air to enter the internal heat dissipation channel of the electrode head 9 for cooling, preventing the flat electrode head 9 from deforming due to reduced structural stability after heating, thus maintaining the normal working state of the electrode head 9 and ensuring the working state of the high-level radioactive waste liquid glass curing furnace.

[0082] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A glass furnace feeding electrode, characterized in that, include: Electrode head assembly (1) is located at the bottom of the glass furnace; The electrode head assembly (1) has a flat electrode head (9) at its top, and a heat dissipation channel is formed inside the electrode head (9), the heat dissipation channel being arranged along the outer ring of the electrode head (9); and, The cooling assembly (3) includes an air inlet pipe (21) and an air outlet pipe (22). The air inlet pipe (21) and the air outlet pipe (22) are both located outside the glass furnace and extend through the side wall of the glass furnace into the electrode head (9) and communicate with the heat dissipation channel so that external cooling air can enter the heat dissipation channel through the air inlet pipe (21) to dissipate heat from the electrode head (9) and then be discharged through the air outlet pipe (22).

2. The glass furnace feeding electrode according to claim 1, characterized in that, The electrode head assembly (1) includes: The electrode head body is vertically installed at the bottom of the glass melting furnace; the longitudinal cross-sectional shape of the electrode head body is T-shaped, and the electrode head body includes the electrode head (9) and a support member, the support member being located at the bottom of the electrode head for supporting the electrode head (9); and, The cooling flange (11) is annular in shape, and an annular groove is provided on the upper surface of the cooling flange (11); the cooling flange (11) is fastened to the lower surface of the electrode head (9) so that the groove and the lower surface of the electrode head (9) together form the heat dissipation channel. Both the air inlet pipe (21) and the air outlet pipe (22) pass through the outer wall of the cooling flange (11) and are connected to the heat dissipation channel.

3. The glass furnace feeding electrode according to claim 2, characterized in that, The heat dissipation channel is also provided with a baffle plate (10), which is located between the air inlet pipe (21) and the air outlet pipe (22) to separate the heat dissipation channel so that the cooling air entering from the air inlet pipe (21) located on one side of the baffle plate (10) flows around the heat dissipation channel once and then flows out through the air outlet pipe (22) located on the other side of the baffle plate (10).

4. The glass furnace feeding electrode according to claim 2, characterized in that, A feeding channel is provided in the middle of the electrode head body; The feeding channel runs through the electrode head (9) and the support from top to bottom, and the longitudinal section of the feeding channel is a stepped shape that decreases in size from top to bottom.

5. The glass furnace feeding electrode according to claim 2, characterized in that, It also includes bellows (4); The corrugated pipe (4) is sleeved outside the air inlet pipe (21) and the air outlet pipe (22). The first end of the corrugated pipe (4) is fixed and sealed to the side wall of the glass furnace. The second end of the corrugated pipe (4) is fixed and sealed to the outer side wall of the air inlet pipe (21) and the outer side wall of the air outlet pipe (22) to compensate for the displacement between the side wall of the glass furnace and the air inlet pipe (21) and the air outlet pipe (22).

6. The glass furnace feeding electrode according to claim 5, characterized in that, An insulating pad (5) is provided between the corrugated pipe (4) and the side wall of the glass furnace. The first end of the corrugated pipe (4) is fixed and sealed to the first end of the insulating pad (5), and the side wall of the glass furnace is fixed and sealed to the second end of the insulating pad (5).

7. The glass furnace feeding electrode according to claim 5, characterized in that, It also includes thermocouple tubes (2); The thermocouple tube (2) extends from outside the glass furnace, through the second end of the corrugated pipe (4), through the side wall of the glass furnace, and into the interior of the electrode head (9). The outer side wall of the thermocouple tube (2) is fixed and sealed to the second end of the corrugated pipe (4). The thermocouple tube (2) has a thermocouple through hole so that the detection end of the thermocouple passes through the thermocouple through hole and extends into the electrode head (9) to measure the temperature of the electrode head (9).

8. The glass furnace feeding electrode according to claim 7, characterized in that, The thermocouple tube (2) is provided with a thermocouple support (8) at one end outside the glass furnace. The thermocouple support (8) is used to fix the thermocouple.

9. The glass furnace feeding electrode according to claim 2, characterized in that, The air outlet duct (22) is provided with an air outlet at one end outside the glass furnace, and a sound-absorbing device (6) is provided at the air outlet.

10. A high-level radioactive waste liquid glass curing furnace, characterized in that, include: Glass melting furnaces are used to contain glass and radioactive waste; and, The glass furnace feeding electrode according to any one of claims 1-9, wherein there are multiple glass furnace feeding electrodes, and the electrode heads (9) of the multiple glass furnace feeding electrodes are used to heat the glass body and radioactive waste in the glass furnace after being energized.

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