Electrode connection structure convenient to disassemble and assemble

Abstract

The utility model discloses an electrode connecting structure convenient to disassemble and assemble. The electrode connecting structure comprises an electrode, a copper strip, a pressing block, an adjustable connecting assembly, a molybdenum strip, an insulating ceramic tube and a hot area shell electrode tube opening. One end of the copper strip is connected with the electrode, the other end of the copper strip is connected with the surface of one side of one end of the molybdenum strip, and the pressing block movably abuts against the surface of the other side of one end of the molybdenum strip through the adjustable connecting assembly, so that the copper strip is detachably connected with the molybdenum strip; the hot area shell electrode tube opening is formed in the hot area, the insulating ceramic tube is rotatably installed in the hot area shell electrode tube opening, and the other end of the molybdenum belt penetrates through the insulating ceramic tube and then is connected with the heating belt. The utility model relates to the technical field of electric heating furnaces, and can solve the problem that in the prior art, electrodes are inconvenient to disassemble and assemble when a sectional type heating furnace enclosure is overhauled.

Description

Technical Field

[0001] This utility model relates to the field of electric heating furnace technology, and in particular to an electrode connection structure that is easy to assemble and disassemble. Background Technology

[0002] In electrically heated industrial furnaces, please refer to the appendix. Figure 2 Current is transmitted from the transformer through electrode 100, copper strip 1, and molybdenum strip 4 to the heating strip 300 inside the hot zone 200 for heating. Traditionally, the electrodes are arranged as close as possible to the furnace door in the design to facilitate disassembly and regular maintenance.

[0003] However, in segmented heating (multi-temperature zone) heating systems, please refer to the appendix. Figure 1 Since each heating zone requires an independent input / output electrode 100, the electrodes 100 cannot be centrally arranged on the side near the furnace door. Furthermore, due to the limited space inside the furnace, personnel cannot easily access the electrodes 100 for assembly and disassembly. Therefore, the electrodes 100 are often designed as an integral structure. The existing electrode connection structure installation method is as follows: first, the external structure of the furnace body is assembled as a whole; after the hot zone 200 is installed into the furnace body, the electrodes 100 are then inserted through the electrode flange opening at the top of the furnace body. The electrodes 100 are connected to one end of the molybdenum strip 4 via the copper strip 1; the other end of the molybdenum strip 4 passes through the insulating ceramic tube 10 and is connected to the heating zone 300 via connecting bolts 9.

[0004] During the subsequent use of the segmented heating furnace, when the molybdenum strip 4 is oxidized or the insulating ceramic tube 10 is broken and needs replacement, all the electrodes 100 above it must be completely removed. Similarly, when the heating belt 300 within the hot zone 200 needs to be pulled out of the furnace body for maintenance, all the electrodes 100 above it must also be removed sequentially, causing significant inconvenience for subsequent maintenance. Therefore, there is a need to provide an electrode connection structure that facilitates disassembly and assembly, solving the problem of inconvenient electrode disassembly and assembly during the enclosure maintenance of existing segmented heating furnaces. Summary of the Invention

[0005] The purpose of this utility model is to provide an electrode connection structure that is easy to disassemble and assemble, which can solve the problem of inconvenient electrode disassembly and assembly during the maintenance of segmented heating furnaces in the prior art.

[0006] This utility model is implemented as follows:

[0007] An electrode connection structure that is easy to assemble and disassemble includes an electrode, a copper strip, a pressure block, an adjustable connection assembly, a molybdenum strip, an insulating ceramic tube, and an electrode port for a hot zone housing. One end of the copper strip is connected to the electrode, and the other end of the copper strip is in contact with one side surface of one end of the molybdenum strip. The pressure block is movably pressed against the other side surface of one end of the molybdenum strip through the adjustable connection assembly, so that the copper strip and the molybdenum strip are detachably connected. The electrode port for the hot zone housing is installed on the hot zone, and the insulating ceramic tube is rotatably installed inside the electrode port for the hot zone housing. The other end of the molybdenum strip passes through the insulating ceramic tube and is connected to the heating element.

[0008] The adjustable connection assembly includes a connector, a fixing block, and an adjusting bolt. The connector is mounted on the other end of the copper strip by a mounting bolt. The connector has an obliquely arranged obliquely shaped hole, and the pressure block has a mounting screw hole. The mounting bolt passes through the obliquely shaped hole and the mounting screw hole, so that the pressure block can be adjusted to connect with the connector along the obliquely shaped hole. The fixing block is mounted on one end of the molybdenum strip by a mounting bolt. The adjusting bolt is screwed through the fixing block and presses against the pressure block. The rotation direction of the adjusting bolt is consistent with the vertical projection direction of the obliquely shaped hole. The fixing block and the adjusting bolt are located inside the insulating ceramic tube.

[0009] The connector has a U-shaped cross-section with an opening on one side, so that the connector is surrounded on the other end of the copper strip on three sides, and the pressure block is embedded in the open end of the connector.

[0010] A bushing washer is fitted onto the mounting bolts that connect the connector and the pressure block. The bushing washer is movably positioned within the oblong hole of the connector along with the mounting bolts.

[0011] A through hole is formed on one end of the molybdenum strip, and the protruding end of the mounting bolt connecting the copper strip and the connector is inserted into the through hole, which is located above the fixing block.

[0012] A flange is formed at the outer edge of the insulating ceramic tube, and a pad is formed on the inner wall of the hot zone shell electrode tube opening; when the flange rests on the pad, the insulating ceramic tube is installed through the hot zone shell electrode tube opening; when the insulating ceramic tube is rotated relative to the hot zone shell electrode tube opening until the flange and the pad are misaligned, the insulating ceramic tube is detachably installed through the hot zone shell electrode tube opening.

[0013] The insulating ceramic tube has two symmetrically formed flanges, and the inner wall of the hot zone shell electrode tube opening has two symmetrically formed pads, so that the two flanges can be placed on the two pads respectively.

[0014] Each of the aforementioned pads has a stop formed on the inner wall of the electrode port of the hot zone housing on both sides, so that when each flange is placed on the corresponding pad, the flange is blocked and limited by the stop on both sides.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. This utility model features a pressure block and an adjustable connecting assembly. By rotating the adjusting bolt, the pressure block can be pushed upwards or released downwards. When the pressure block is pushed upwards along the oblong hole, it can press the molybdenum strip onto the copper strip, ensuring a reliable connection between the two. When the pressure block moves downwards along the oblong hole, it can release the pressure on the molybdenum strip, facilitating its disassembly. Personnel can disassemble and replace the molybdenum strip within the hot zone without disassembling the entire upper electrode, greatly shortening daily maintenance time. A single person can complete the operation, reducing maintenance manpower.

[0017] 2. This utility model features an insulating ceramic tube with a flange and an electrode opening in the hot zone housing with a pad and a stop. When the flange overlaps and rests on the pad and is limited by the stops on both sides, the insulating ceramic tube can be installed through the electrode opening in the hot zone housing, making installation reliable and convenient. It is also detachable. Personnel can lift the insulating ceramic tube upwards from inside the hot zone, causing the flange to detach from the pad and the stop, and rotate the insulating ceramic tube 90° to separate the flange from the pad, thus removing the insulating ceramic tube. Disassembly is convenient and does not require complete disassembly of the upper electrode, greatly shortening daily maintenance time. A single person can complete the operation, reducing maintenance manpower. Attached Figure Description

[0018] Figure 1 This is a side view of the electrode connection structure of an existing electric heating furnace;

[0019] Figure 2 This is a front view of the electrode connection structure of an existing electric heating furnace;

[0020] Figure 3 This is a schematic diagram showing the connection of the copper strip, molybdenum strip, pressure block, and adjustable connection assembly in the electrode connection structure of this utility model that is easy to assemble and disassemble.

[0021] Figure 4 yes Figure 3 Side view;

[0022] Figure 5 This is a top view of the disassembled insulating ceramic tube and the electrode port of the hot zone shell in the electrode connection structure of this utility model that is easy to disassemble and assemble.

[0023] Figure 6 This is a top view of the installation of the insulating ceramic tube and the electrode port of the hot zone shell in the electrode connection structure of this utility model that is easy to disassemble and assemble.

[0024] Figure 7 This is an installation diagram of the electrode connection structure of this utility model that is easy to assemble and disassemble.

[0025] In the diagram, 100 is the electrode, 200 is the hot zone, 300 is the heating band, 1 is the copper strip, 2 is the pressure block, 21 is the mounting screw hole, 3 is the connector, 31 is the oblong hole, 4 is the molybdenum strip, 41 is the through hole, 5 is the fixing block, 6 is the bushing gasket, 7 is the adjusting bolt, 8 is the mounting bolt, 9 is the connecting bolt, 10 is the insulating ceramic tube, 101 is the flange, 11 is the hot zone shell electrode tube opening, 11.1 is the pad, and 11.2 is the stop. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Please see the appendix Figure 3 To be continued Figure 7 An electrode connection structure that is easy to assemble and disassemble includes an electrode 100, a copper strip 1, a pressure block 2, an adjustable connection assembly, a molybdenum strip 4, an insulating ceramic tube 10, and a hot zone shell electrode port 11. One end of the copper strip 1 is connected to the electrode 100, and the other end of the copper strip 1 is in contact with one side surface of one end of the molybdenum strip 4. The pressure block 2 is movably pressed against the other side surface of one end of the molybdenum strip 4 through the adjustable connection assembly, so that the copper strip 1 and the molybdenum strip 4 are detachably connected. The hot zone shell electrode port 11 is installed on the hot zone 200, and the insulating ceramic tube 10 is rotatably installed in the hot zone shell electrode port 11. The other end of the molybdenum strip 4 passes through the insulating ceramic tube 10 and is connected to the heating band 300 through a connecting bolt 9.

[0028] Personnel inside the hot zone 200 use an adjustable connecting assembly to push the pressure block 2, pressing the molybdenum strip 4 firmly onto the copper strip 1, ensuring a reliable connection between the two. Simultaneously, the adjustable connecting assembly can release the pressure block 2, releasing it from the molybdenum strip 4 and allowing for quick removal from the copper strip 1. During maintenance and replacement of the molybdenum strip 4, it is not necessary to completely remove the upper electrode 100; personnel can perform the installation and removal operations on the molybdenum strip 4 from inside the hot zone 200, reducing labor and simplifying the installation and removal process.

[0029] The insulating ceramic tube 10 is installed and disassembled with the electrode port 11 of the hot zone shell by rotating. The installation and disassembly are convenient. When the heating belt 300 needs to be pulled out of the furnace body for maintenance, the personnel can rotate the insulating ceramic tube 10 inside the hot zone 200 to remove it from the electrode port 11 of the hot zone shell. There is no need to remove the electrode 100 above. The installation and disassembly of the insulating ceramic tube 10 can be carried out without removing the entire electrode 100. This reduces the amount of manpower and the difficulty of installing and disassembling the insulating ceramic tube 10.

[0030] Please see the appendix Figure 3 and attached Figure 4The adjustable connection assembly includes a connector 3, a fixing block 5, and an adjusting bolt 7. The connector 3 is mounted on the other end of the copper strip 1 by a mounting bolt 8. The connector 3 has an obliquely arranged waist-shaped hole 31, and the pressure block 2 has a mounting screw hole 21. The mounting bolt 8 passes through the waist-shaped hole 31 and the mounting screw hole 21, so that the pressure block 2 can be adjustedly connected to the connector 3 along the waist-shaped hole 31. The fixing block 5 is mounted on one end of the molybdenum strip 4 by a mounting bolt 8. The adjusting bolt 7 is screwed through the fixing block 5 and presses against the pressure block 2. The rotation direction of the adjusting bolt 7 is consistent with the vertical projection direction of the waist-shaped hole 31. The fixing block 5 and the adjusting bolt 7 are located inside the insulating ceramic tube 10.

[0031] Preferably, the fixing block 5 is provided with a threaded hole that matches the adjusting bolt 7, allowing the adjusting bolt 7 to be threadedly rotated through the fixing block 5. Under the transmission of the thread, the adjusting bolt 7 can move upward and push the pressure block 2, or the adjusting bolt 7 can move downward and release the pressure block 2, thereby realizing that the pressure block 2 moves obliquely upward along the waist-shaped hole 31 to press the molybdenum strip 4 or moves obliquely downward to release the molybdenum strip 4. The mounting bolt 8 and the adjusting bolt 7 on the fixing block 5 are perpendicular to each other and staggered to avoid the mounting bolt 8 interfering with the rotation adjustment of the adjusting bolt 7.

[0032] Preferably, two oblong holes 31 are arranged at intervals on both sides of the connector 3, and two mounting screw holes 21 are arranged at intervals on both sides of the pressure block 2; the obliquely arranged oblong holes 31 cooperate with the mounting screw holes 21 and the mounting bolts 8 to provide guidance and limit for the oblique upward or oblique downward movement of the pressure block 2, and convert the vertical movement of the adjusting bolts 7 into the oblique upward or oblique downward movement of the pressure block 2, so that the movement process is stable and controllable.

[0033] The length and tilt angle of the waist-shaped hole 31 can be adaptively adjusted according to the actual movement trajectory of the pressure block 2 to ensure that when the pressure block 2 moves obliquely upward to the top of the waist-shaped hole 31, it can press the molybdenum strip 4 onto the copper strip 1, ensuring a reliable connection between the molybdenum strip 4 and the copper strip 1. When the pressure block 2 moves obliquely downward to the bottom of the waist-shaped hole 31, it can disassemble the molybdenum strip 4 from the copper strip 1.

[0034] Please see the appendix Figure 3 and attached Figure 4 The connector 3 has a U-shaped cross-section with an opening on one side, so that the connector 3 is surrounded on the other end of the copper strip 1 on three sides, and the pressure block 2 is embedded in the open end of the connector 3.

[0035] The opening width of the connector 3 can be adjusted according to the width of the copper strip 1. The width of the pressure block 2 is slightly smaller than the opening width of the connector 3, so that the connector 3 can be installed on the copper strip 1 on three sides, and the pressure block 2 can move inside the connector 3.

[0036] Please see the appendix Figure 4A bushing gasket 6 is fitted onto the mounting bolt 8 that connects the connector 3 and the pressure block 2. The bushing gasket 6 is movably disposed in the oblong hole 31 of the connector 3 along with the mounting bolt 8.

[0037] The bushing gasket 6 isolates the mounting bolt 8 from the wall of the oblong hole 31, protecting the mounting bolt 8 and preventing thread wear.

[0038] Please see the appendix Figure 3 A through hole 41 is formed on one end of the molybdenum strip 4. The protruding end of the mounting bolt 8 connecting the copper strip 1 and the connector 3 is inserted into the through hole 41. The through hole 41 is located above the fixing block 5.

[0039] By setting through hole 41, not only can the protruding end of mounting bolt 8 be avoided, making it easier to insert one end of molybdenum strip 4 into the gap between copper strip 1 and pressure block 2 in connector 3, but the connection reliability between copper strip 1 and molybdenum strip 4 can also be improved by inserting the protruding end of mounting bolt 8 into through hole 41.

[0040] Please see the appendix Figure 5 and attached Figure 6 A flange 101 is formed at the outer edge of the insulating ceramic tube 10, and a pad 11.1 is formed on the inner wall of the hot zone shell electrode tube opening 11. When the flange 101 rests on the pad 11.1, the insulating ceramic tube 10 is installed through the hot zone shell electrode tube opening 11. When the insulating ceramic tube 10 is rotated relative to the hot zone shell electrode tube opening 11 until the flange 101 is misaligned with the pad 11.1, the insulating ceramic tube 10 is detachably installed through the hot zone shell electrode tube opening 11.

[0041] Preferably, the flange 101 can be disposed at the top edge of the outer wall of the insulating ceramic tube 10, and the pad 11.1 can be disposed at the top of the inner wall of the hot zone shell electrode port 11. When the flange 101 is placed on the pad 11.1, the insulating ceramic tube 10 can be installed through the hot zone shell electrode port 11. When the insulating ceramic tube 10 is rotated until the flange 101 and the pad 11.1 are misaligned, the insulating ceramic tube 10 can be removed from the hot zone shell electrode port 11.

[0042] The insulating ceramic tube 10 is easy and quick to install and remove. There is no need to completely disassemble the upper electrode 100. Personnel can complete the installation and removal of the insulating ceramic tube 10 inside the hot zone 200.

[0043] Please see the appendix Figure 5 and attached Figure 6 Preferably, two flanges 101 are symmetrically formed on the insulating ceramic tube 10, and two pads 11.1 are symmetrically formed on the inner wall of the hot zone shell electrode tube 11, so that the two flanges 101 can be placed on the two pads 11.1 respectively.

[0044] The two flanges 101 and the two pads 11.1 are spaced 180° apart. When assembling or disassembling the insulating ceramic tube 10, simply rotate the insulating ceramic tube 10 90° clockwise or counterclockwise. The two pads 11.1 provide support for the two flanges 101, ensuring that the insulating ceramic tube 10 is stably and reliably installed in the electrode port 11 of the hot zone shell.

[0045] Please see the appendix Figure 5 and attached Figure 6 Preferably, a stop iron 11.2 is formed on the inner wall of the hot zone shell electrode port 11 on both sides of each of the pad irons 11.1, so that when each flange 101 is placed on the corresponding pad iron 11.1, the flange 101 is blocked and limited by the stop irons 11.2 on both sides.

[0046] Preferably, the stop 11.2 is slightly higher than the flange 101, which can effectively limit the flange 101 and prevent the flange 101 from slipping off the pad 11.1 due to accidental rotation of the insulating ceramic tube 10. When disassembling the insulating ceramic tube 10, it is only necessary to raise the insulating ceramic tube 10 above the stop 11.2 to rotate the insulating ceramic tube 10, which takes into account both the installation reliability and the convenience of disassembly of the insulating ceramic tube 10.

[0047] Please see the appendix Figure 3 To be continued Figure 7 The installation method of this utility model is as follows:

[0048] First, install the outer part of electrode 100, and connect one end of copper strip 1 to electrode 100. The outer part of electrode 100 and copper strip 1 are installed with electrode 100 in a conventional manner, which will not be described in detail here.

[0049] Install the U-shaped connector 3 onto the other end of the copper strip 1 and secure it with the mounting bolt 8. Insert the pressure block 2 into the opening of the connector 3, aligning the oblong holes 31 on both sides of the connector 3 with the mounting screw holes 21 on both sides of the pressure block 2. Place the bushing 6 onto the mounting bolt 8 and screw the mounting bolt 8 through the oblong hole 31 and into the mounting screw hole 21, allowing the pressure block 2 to move along the length of the oblong hole 31 within the opening of the connector 3.

[0050] The hot zone 200 is installed and fixed inside the furnace body. The hot zone 200 is installed in a conventional manner, which will not be described in detail here. Personnel can then fill the insulating ceramic tubes 10 one by one from the inside of the hot zone. When installing the insulating ceramic tubes 10, the two flanges 101 of the insulating ceramic tube 10 are offset from the two pads 11.1 on the inner wall of the electrode port 11 of the hot zone shell. After the insulating ceramic tube 10 passes through the electrode port 11 of the hot zone shell upwards, it is rotated 90° so that the two flanges 101 overlap and rest on the two pads 11.1. It is limited by the stop irons 11.2 on both sides, so that the insulating ceramic tube 10 can be installed through the electrode port 11 of the hot zone shell.

[0051] Next, the fixing block 5 is installed on one end of the molybdenum strip 4 and located below the through hole 41 using the mounting bolt 8. One end of the molybdenum strip 4 is inserted from the inside to the outside into the gap between the copper strip 1 and the pressure block 2, so that the protruding end of the mounting bolt 8 connecting the copper strip 1 and the connector 3 is inserted into the through hole 41.

[0052] Rotate the adjusting bolt 7 from the inside to move the adjusting bolt 7 upward and push the pressure block 2 upward along the waist-shaped hole 31. The obliquely set waist-shaped hole converts the vertical movement of the adjusting bolt 7 into the vertical and horizontal movement of the pressure block 2. After the pressure block 2 moves horizontally, it presses the molybdenum strip 4 onto the copper strip 1.

[0053] Finally, the other end of the molybdenum strip 4 is connected to the entire annular heating belt 300. The molybdenum strip 4 and the heating belt 300 are connected in a conventional way, which will not be described in detail here.

[0054] Please see the appendix Figure 3 To be continued Figure 7 The disassembly method of this utility model is as follows:

[0055] Personnel only need to operate inside the hot zone. First, disconnect the molybdenum belt 4 from the heating belt 300, then loosen the adjusting bolt 7, that is, rotate the adjusting bolt 7 downwards to make the pressure block 2 move downwards along the waist-shaped hole 31 and release the pressure on the molybdenum belt 4, so that the molybdenum belt 4 can be pulled out for replacement.

[0056] When replacing the insulating ceramic tube 10, personnel only need to gently lift the insulating ceramic tube 10 from the inside by hand, so that the flange 101 of the insulating ceramic tube 10 is higher than the stop 11.2, and rotate the insulating ceramic tube 10 90° so that the flange 101 is misaligned with the shim 11.1 and the stop 11.2, and the insulating ceramic tube 10 can be easily removed. Furthermore, when inspecting the hot zone 200, the insulating ceramic tube 10 can also be pulled out separately from the furnace body without disassembling the electrode 100 above it.

[0057] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An electrode connection structure that is easy to assemble and disassemble, characterized in that: The device includes an electrode (100), a copper strip (1), a pressure block (2), an adjustable connection assembly, a molybdenum strip (4), an insulating ceramic tube (10), and a hot zone shell electrode port (11). One end of the copper strip (1) is connected to the electrode (100), and the other end of the copper strip (1) is in contact with one side surface of one end of the molybdenum strip (4). The pressure block (2) is movably pressed against the other side surface of one end of the molybdenum strip (4) through the adjustable connection assembly, so that the copper strip (1) and the molybdenum strip (4) are detachably connected. The hot zone shell electrode port (11) is installed on the hot zone (200), and the insulating ceramic tube (10) is rotatably installed inside the hot zone shell electrode port (11). The other end of the molybdenum strip (4) passes through the insulating ceramic tube (10) and is connected to the heating belt (300).

2. The electrode connection structure for easy assembly and disassembly according to claim 1, characterized in that: The adjustable connection assembly includes a connector (3), a fixing block (5), and an adjusting bolt (7); the connector (3) is mounted on the other end of the copper strip (1) by a mounting bolt (8), the connector (3) has an obliquely arranged waist-shaped hole (31), the pressure block (2) has a mounting screw hole (21), the mounting bolt (8) passes through the waist-shaped hole (31) and the mounting screw hole (21), so that the pressure block (2) can be adjustedly connected to the connector (3) along the waist-shaped hole (31); the fixing block (5) is mounted on one end of the molybdenum strip (4) by a mounting bolt (8), the adjusting bolt (7) is screwed through the fixing block (5) and presses against the pressure block (2), and the rotation direction of the adjusting bolt (7) is consistent with the vertical projection direction of the waist-shaped hole (31); the fixing block (5) and the adjusting bolt (7) are located inside the insulating ceramic tube (10).

3. The electrode connection structure for easy assembly and disassembly according to claim 2, characterized in that: The connector (3) has a U-shaped structure with an opening on one side, so that the connector (3) is surrounded on the other end of the copper strip (1) on three sides, and the pressure block (2) is embedded in the opening end of the connector (3).

4. The electrode connection structure for easy assembly and disassembly according to claim 2 or 3, characterized in that: the connection... A bushing gasket (6) is fitted onto the mounting bolt (8) of the connector (3) and the pressure block (2). The bushing gasket (6) is movably disposed in the waist-shaped hole (31) of the connector (3) along with the mounting bolt (8).

5. The electrode connection structure for easy assembly and disassembly according to claim 2, characterized in that: A through hole (41) is formed on one end of the molybdenum strip (4), and the protruding end of the mounting bolt (8) connecting the copper strip (1) and the connector (3) is inserted into the through hole (41). The through hole (41) is located above the fixing block (5).

6. The electrode connection structure for easy assembly and disassembly according to claim 1 or 2, characterized in that: A flange (101) is formed at the outer edge of the insulating ceramic tube (10), and a pad (11.1) is formed on the inner wall of the hot zone shell electrode tube opening (11). When the flange (101) rests on the pad (11.1), the insulating ceramic tube (10) is installed through the hot zone shell electrode tube opening (11). When the insulating ceramic tube (10) rotates relative to the hot zone shell electrode tube opening (11) until the flange (101) and the pad (11.1) are misaligned, the insulating ceramic tube (10) is detachably installed through the hot zone shell electrode tube opening (11).

7. The electrode connection structure for easy assembly and disassembly according to claim 6, characterized in that: Two flanges (101) are symmetrically formed on the insulating ceramic tube (10), and two pads (11.1) are symmetrically formed on the inner wall of the electrode tube opening (11) of the hot zone shell, so that the two flanges (101) can be placed on the two pads (11.1) respectively.

8. The electrode connection structure for easy assembly and disassembly according to claim 6 or 7, characterized in that: Each of the pads (11.1) has a stop (11.2) formed on the inner wall of the hot zone shell electrode port (11) on both sides, so that when each flange (101) is placed on the corresponding pad (11.1), the flange (101) is blocked and limited by the stop (11.2) on both sides.

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