A method for fixing anodes in plasma facilities for treating corrosive waste gas

Abstract

The present invention relates to the field of plasma equipment assembly technology, and discloses a device for fixing the anode of a plasma facility for treating corrosive waste gas, including a tube expansion mechanism, the tube expansion mechanism including an oil cylinder, the bottom end of the oil cylinder is fixedly connected to a support shaft, the bottom of the support shaft is fixedly connected to a lifting plate, the outer periphery of the lifting plate is hinged with a hinge rod, and the other end of the hinge rod is hinged with a rubber block. In the device for fixing the anode of a plasma facility for treating corrosive waste gas, after the tube expansion block is positioned, as the hydraulic pressure in the hydraulic pipe increases, the oil cylinder is moved downward by the hydraulic pressure, so that the lifting plate moves downward, and in conjunction with the hinge rod transmission, the rubber block drives the arc plate to prop up the anode tube outward, so that the anode tube is tightly clamped inside the hole, so as to achieve the effect of improving the interface strength by expansion type fixation, and when the tube expansion block extends into the anode tube, as the truncated table moves downward, the magnetic attraction between the magnetic blocks moves away from each other, so that the gravity block top contacts, the indicator light is on, and the positioning ability of the expansion block is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plasma equipment assembly, in particular to a method for fixing an anode of a plasma facility for treating corrosive waste gas. Background Art

[0002] Plasma equipment includes a metal frame, an anode tube, a cathode tube, etc., and welding is usually used to fix the anode tube. However, during the welding of stainless steel, the weld is subjected to high welding temperature, and its material changes, making the weld surface not corrosion-resistant. The strength of the weld will decrease with the increase of use time, resulting in a shortened service life of the equipment. In addition, welding is labor-intensive and labor-intensive, and the labor cost is high. Due to the large number of anode tubes, long-term welding will not only harm the user's health, but also reduce the assembly efficiency of the equipment. The present method uses the expansion tube method to fix the anode without a welding port. However, during the extension of the expansion tube block, the expansion block and the hole are easily misaligned, thereby reducing the positioning accuracy of the expansion block and the combination effect of the anode tube and the hole. Therefore, it is necessary to improve the positioning ability to improve the expansion tube efficiency. In addition, the plasma waste gas treatment facility is in an acidic corrosive waste gas environment, and the traditional glass, porcelain and silicon and ceramic fired ultra-high voltage porcelain bottles are used in a state of high-voltage humid electrolysis, and the results of long-term use cannot be achieved, which reduces the service life of the equipment.

[0003] To solve the above problems, the inventor provides a method for fixing the anode of a plasma facility for treating corrosive waste gas. The device for fixing the anode of a plasma facility for treating corrosive waste gas has the following characteristics: after the expansion block is positioned, as the hydraulic pressure in the hydraulic pipe increases, the oil cylinder moves downward under the hydraulic pressure, causing the lifting plate to move downward, and in conjunction with the hinge rod transmission, the rubber block drives the arc plate to prop up the anode tube outward, so that the anode tube is tightly clamped inside the hole, achieving the effect of expansion-type fixation to improve the strength of the interface; when the expansion block is extended into the anode tube, as the truncated table moves downward, the magnetic attraction between the magnetic blocks moves away from each other, causing the gravity block to top the contact point, the indicator light comes on, and the positioning ability of the expansion block is improved. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a method for fixing the anode of a plasma facility for treating corrosive waste gas, which has the advantages of expansion-type fixation to improve interface strength and self-positioning of the relative distance between the expansion block and the pipe mouth when the expansion block is extended, and solves the problems that welding will weaken the strength of the joint and thus reduce the service life, and the expansion block is difficult to position when extended, which may easily lead to misalignment between the pipe mouth and the pipe.

[0005] In order to achieve the purpose of improving the interface strength and the self-positioning relative distance between the expansion block and the pipe mouth when the expansion block is extended, the present invention provides the following technical solutions: a device for fixing the anode of a plasma facility for treating corrosive waste gas, comprising an expansion mechanism, the expansion mechanism comprising an oil cylinder, the bottom end of the oil cylinder is fixedly connected to a support shaft, the bottom of the support shaft is fixedly connected to a lifting plate, the periphery of the lifting plate is hinged with a hinge rod, the other end of the hinge rod is hinged with a rubber block, the end of the rubber block away from the lifting plate is fixedly connected to an arc plate, the bottom end of the lifting plate is elastically connected to a spring, an end cover is arranged above the oil cylinder, and a hydraulic pipe is sleeved inside the end cover.

[0006] Preferably, a support shaft is fixedly connected to the bottom center of the oil cylinder, and a lifting plate is fixedly connected to the bottom and middle periphery of the support shaft respectively. A hinge rod is hinged at one end of the rubber block close to the support shaft, and the height of the lifting plate is changed by moving the support shaft up and down.

[0007] Preferably, the rubber blocks are arranged at equal angles about the axis of the support shaft, the arc plates are divided into two groups, the arc plates are limitedly connected in pairs, the hydraulic pipes are connected to the external hydraulic components, and the height of the oil cylinder is changed by transmitting hydraulic pressure through the hydraulic pipes.

[0008] Preferably, it includes a positioning mechanism, which includes a truncated table, the center limit of the truncated table is connected to a gravity block, the left and right ends of the gravity block are hinged with connecting rods, the other end of the connecting rod is hinged with a magnetic block, a contact is arranged above the gravity block, an active magnetic ring is arranged on the periphery of the truncated table, and an indicator light is arranged above the truncated table.

[0009] Preferably, the interior of the truncated cone is hollow, the mass of the gravity block is greater than the mass of the magnetic block, the left and right ends of the gravity block are connected to the magnetic blocks through a connecting rod transmission, the magnetic poles of the corresponding surfaces of the magnetic block and the active magnetic ring are in opposite directions, the contacts and the indicator light are electrically connected, and the height of the gravity block is changed by the attraction of the magnetic block to pull the connecting rod.

[0010] Preferably, it also includes a metal plate frame, the surface of which is provided with a hole, an anode tube is inserted into the inside of the hole, the left and right ends of the top of the metal plate frame are fixedly connected with insulating columns, the top of the insulating column is fixedly connected with a top frame, an expansion block is provided inside the anode tube, the internal limit of the expansion block is connected with an expansion mechanism, and the bottom end of the expansion block is fixedly connected with a positioning mechanism.

[0011] Preferably, the metal plate frame is divided into upper and lower layers, the radius of the hole is larger than the radius of the anode tube, the insulating column is a columnar body made of polytetrafluoroethylene material, the top of the expansion block is threadedly connected to an end cap, the internal limit of the expansion block is connected to an oil cylinder, and the interior of the expansion block is connected to a hydraulic pipe. The use of polytetrafluoroethylene material extends the service life of the insulating column and the porcelain bottle.

[0012] Preferably, the internal limit of the expansion block is connected with a rubber block, the top periphery of the expansion block is fixedly connected with an indicator light, the radius of the expansion block is smaller than the inner wall radius of the anode tube, and the periphery of the anode tube is provided with an active magnetic ring to provide conditions for the insertion of the expansion block.

[0013] A method for fixing an anode in a plasma facility for treating corrosive waste gas comprises the following steps:

[0014] S1: welding the metal steel plate to the plasma equipment body;

[0015] S2: Drill holes at equal distances on the surface of the metal steel plate;

[0016] S3: Pass the prepared metal tube parallel to the hole;

[0017] S4: insert the tube expansion devices one by one and locate the tube expansion positions;

[0018] S5: Start the hydraulic assembly to make the tube expansion device extend the radius of the expanded metal tube to fit into the hole;

[0019] S6: When the expansion pressure reaches the set pressure, the hydraulic assembly automatically releases pressure;

[0020] S7: After the automatic pressure relief is completed, pull out the tube expansion device and insert the next tube to be expanded.

[0021] Beneficial Effects

[0022] Compared with the prior art, the present invention provides a method for fixing an anode in a plasma facility for treating corrosive waste gas, which has the following beneficial effects:

[0023] 1. The device for fixing the anode of the plasma facility for treating corrosive waste gas is connected to a cylinder through the internal limit of the expansion block. When the expansion block is positioned, the external hydraulic component connected to the hydraulic pipe is started. As the hydraulic pressure inside the hydraulic pipe increases, the cylinder is moved downward by the hydraulic pressure, causing the support shaft and the lifting plate to move downward. In cooperation with the transmission of the hinge rod, the rubber block gradually stretches to one side of the inner wall of the anode tube, and the arc plates are stretched and fit to the inner wall of the anode tube. As the pressure on the cylinder gradually increases, the rubber block drives the arc plates to prop up the anode tube outward, so that the anode tube is tightly clamped inside the hole. The hydraulic component is closed, and the lifting plate moves up under the elastic force of the spring to reset the rubber block and the arc plate, so that the expansion block can be smoothly removed, thereby achieving the effect of improving the interface strength by expansion type fixation, avoiding welding heating to reduce the interface strength, and improving the service life of the equipment.

[0024] 2. The device for fixing the anode of the plasma facility for treating corrosive waste gas is fixedly connected with a truncated table through the bottom end of the expansion block. When the expansion block is inserted into the anode tube, the active magnetic ring is taken out and placed directly below the hole. As the truncated table moves downward, the magnetic blocks are moved away from each other by the magnetic attraction. Under the transmission of the connecting rod, the gravity block hits the contact point, causing the indicator light to light up, indicating that the user has reached the expansion position, thereby achieving the effect of self-positioning the relative distance between the expansion block and the tube mouth when the expansion block is extended, thereby improving the positioning ability of the expansion block.

[0025] 3. The method of fixing the anode of the plasma facility for treating corrosive waste gas is as follows: after a hole is opened on the steel plate, the prepared metal pipe is inserted through the hole flushly, and then the rubber expansion block is inserted into the metal pipe. After the expansion block is positioned, the external hydraulic component is started to make the expansion block prop up the inner wall of the metal pipe outward so that the expanded position of the metal pipe is firmly combined with the hole plate. When the hydraulic component reaches the set pressure, it automatically releases the pressure, the expansion block returns to its original state, and the metal pipe is expanded and stuck in the hole plate. The expansion block is taken out and the next metal pipe is continued, so as to improve the interface strength and the assembly efficiency, avoid welding smoke generated during welding, and greatly extend the service life of the plasma equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an appearance diagram of the metal plate frame of the present invention;

[0027] Figure 2 This is the appearance diagram of the top frame of the present invention removed;

[0028] Figure 3 This is a schematic diagram of the appearance of the insulating column of the present invention;

[0029] Figure 4 This is a schematic diagram of the expansion tube block insertion of the present invention;

[0030] Figure 5 This is a cross-sectional view of the expansion block insertion structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the operation of the tube expansion mechanism of the present invention;

[0032] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at AA in the middle;

[0033] Figure 8 For the present invention Figure 6 Schematic diagram of the structure at the middle BB;

[0034] Fig. 9 For the present invention Figure 5 A magnified view of the structure in the middle.

[0035] In the figure: 1. metal plate frame; 2. hole; 3. anode tube; 4. insulating column; 5. top frame; 6. expansion block; 7. expansion mechanism; 71. oil cylinder; 72. support shaft; 73. lifting plate; 74. hinge rod; 75. rubber block; 76. arc plate; 77. spring 1; 78. end cover; 79. hydraulic pipe; 8. positioning mechanism; 81. round table; 82. gravity block; 83. connecting rod; 84. magnetic block; 85. contact; 86. active magnetic ring; 87. indicator light. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figure 1-8 A device for fixing an anode for treating corrosive waste gas in a plasma facility comprises an expansion mechanism 7, which comprises an oil cylinder 71. A support shaft 72 is fixedly connected to the bottom end of the oil cylinder 71. A lifting plate 73 is fixedly connected to the bottom of the support shaft 72. A hinge rod 74 is hinged to the periphery of the lifting plate 73. A rubber block 75 is hinged to the other end of the hinge rod 74. An arc plate 76 is fixedly connected to the end of the rubber block 75 away from the lifting plate 73. A spring 77 is elastically connected to the bottom end of the lifting plate 73. An end cover 78 is arranged above the oil cylinder 71. A hydraulic pipe 79 is sleeved inside the end cover 78. The bottom center of the oil cylinder 71 is fixedly connected to the support shaft 72. The bottom and the middle periphery of the support shaft 72 are respectively fixedly connected to the lifting plate 73. The end of the rubber block 75 close to the support shaft 72 is hinged to the hinge rod 74. The rubber block 75 is about The axis of the support shaft 72 is arranged at equal angles, and the arc plates 76 are divided into two groups. The arc plates 76 are connected in pairs, and the hydraulic pipe 79 is connected to the external hydraulic component. After the expansion mechanism 7 is positioned, the hydraulic component is started to continuously pressurize the inside of the hydraulic pipe 79, and the hydraulic pressure is transmitted through the hydraulic pipe 79 to change the height of the oil cylinder 71. The oil cylinder 71 moves downward under pressure, causing the lifting plate 73 to move downward synchronously. Under the transmission of the hinge rod 74, the rubber block 75 and the arc plate 76 gradually support the inner wall of the metal pipe, and gradually prop up the metal pipe outward, so that the metal pipe and the hole plate are firmly clamped. After the hydraulic component reaches the set pressure, the pressure is released to reset the rubber block 75 and the arc plate 76, providing conditions for the expansion of the next metal pipe, thereby achieving the effect of expanding fixation to improve the interface strength, avoiding welding heating to reduce the interface strength, and improving the service life of the equipment.

[0039] Embodiment 2:

[0040] See also Figure 4-9A device for fixing an anode of a plasma facility for treating corrosive waste gas comprises a positioning mechanism 8, the positioning mechanism 8 comprises a truncated table 81, a gravity block 82 is connected to the center limit of the truncated table 81, a connecting rod 83 is hinged at the left and right ends of the gravity block 82, a magnetic block 84 is hinged at the other end of the connecting rod 83, a contact point 85 is arranged above the gravity block 82, an active magnetic ring 86 is arranged at the periphery of the truncated table 81, an indicator light 87 is arranged above the truncated table 81, the interior of the truncated table 81 is hollow, the mass of the gravity block 82 is greater than the mass of the magnetic block 84, the left and right ends of the gravity block 82 are hinged, and the magnetic block 84 is hinged at the other end of the connecting rod 83. The end is connected to a magnetic block 84 through a connecting rod 83. The magnetic poles of the corresponding surfaces of the magnetic block 84 and the active magnetic ring 86 are in opposite directions. The contact 85 and the indicator light 87 are electrically connected. By moving the active magnetic ring 86 under the joint of the metal pipe, when the expansion block is inserted, the magnetic block 84 movably connected to the bottom of the truncated table 81 is attracted to pull the connecting rod 83 to change the height of the gravity block 82. The top contact 85 of the gravity block 82 makes the indicator light 87 light up, indicating to the user that the expansion position has been reached, so as to achieve the effect of self-positioning the relative distance between the expansion block and the pipe mouth when the expansion block is extended, thereby improving the positioning ability of the expansion block.

[0041] Embodiment three:

[0042] See also Figure 1-9A device for fixing an anode for treating corrosive waste gas in a plasma facility comprises a metal plate frame 1, a hole 2 is opened on the surface of the metal plate frame 1, an anode tube 3 is inserted in the hole 2, the left and right ends of the top of the metal plate frame 1 are fixedly connected with insulating columns 4, the top of the insulating column 4 is fixedly connected with a top frame 5, an expansion tube block 6 is arranged inside the anode tube 3, and an expansion tube mechanism 7 is connected to the internal limit of the expansion tube block 6, the expansion tube mechanism 7 comprises an oil cylinder 71, the bottom end of the oil cylinder 71 is fixedly connected with a support shaft 72, the bottom of the support shaft 72 is fixedly connected with a lifting plate 73, the periphery of the lifting plate 73 is hinged with a hinge rod 74, the other end of the hinge rod 74 is hinged with a rubber block 75, the end of the rubber block 75 away from the lifting plate 73 is fixedly connected with an arc plate 76, and the bottom end of the lifting plate 73 is elastically connected A spring 77 is connected to the top of the oil cylinder 71, an end cover 78 is arranged above the oil cylinder 71, and a hydraulic pipe 79 is sleeved inside the end cover 78. The bottom center of the oil cylinder 71 is fixedly connected to a support shaft 72, and the bottom and the middle periphery of the support shaft 72 are respectively fixedly connected to a lifting plate 73. The end of the rubber block 75 close to the support shaft 72 is hinged with a hinge rod 74, and the rubber block 75 is arranged at equal angles about the axis of the support shaft 72. The arc plate 76 is divided into two groups, and the arc plates 76 are limitedly connected in pairs. The hydraulic pipe 79 is connected to the external hydraulic component. The bottom end of the expansion tube block 6 is fixedly connected to a positioning mechanism 8, and the positioning mechanism 8 includes a round table 81. The center limit of the round table 81 is connected to a gravity block 82. The left and right ends of the gravity block 82 are hinged with connecting rods 83, and the other end of the connecting rod 83 is hinged with a magnetic block 84. A contact 85 is arranged above the force block 82, an active magnetic ring 86 is arranged on the periphery of the truncated table 81, an indicator light 87 is arranged above the truncated table 81, the interior of the truncated table 81 is hollow, the mass of the gravity block 82 is greater than the mass of the magnetic block 84, the left and right ends of the gravity block 82 are connected to the magnetic block 84 through the connecting rod 83, the magnetic poles of the corresponding surfaces of the magnetic block 84 and the active magnetic ring 86 are in opposite directions, the contact 85 and the indicator light 87 are electrically connected, the metal plate frame 1 is divided into upper and lower layers, the radius of the hole 2 is greater than the radius of the anode tube 3, the insulating column 4 is a columnar body made of polytetrafluoroethylene material, the top of the expansion tube block 6 is threadedly connected to the end cover 78, the internal limit of the expansion tube block 6 is connected to the oil cylinder 71, the interior of the expansion tube block 6 is connected to the hydraulic pipe 79, the interior of the expansion tube block 6 The limiter is connected with a rubber block 75, and an indicator light 87 is fixedly connected to the top periphery of the expansion block 6. The radius of the expansion block 6 is smaller than the inner wall radius of the anode tube 3. An active magnetic ring 86 is arranged on the periphery of the anode tube 3 to provide conditions for the insertion of the expansion block 6. After the expansion mechanism 7 is positioned, the hydraulic assembly is started to continuously pressurize the inside of the hydraulic tube 79, and the hydraulic pressure is transmitted through the hydraulic tube 79 to change the height of the oil cylinder 71. The oil cylinder 71 moves downward under pressure, so that the lifting plate 73 moves downward synchronously. Under the transmission of the hinge rod 74, the rubber block 75 and the arc plate 76 gradually support the inner wall of the metal tube, and gradually prop up the metal tube outward, so that the metal tube and the hole plate are firmly clamped. After the hydraulic assembly reaches the set pressure, the pressure is released to reset the rubber block 75 and the arc plate 76, so as to provide conditions for the expansion of the next metal tube.Thus, the expansion type fixation improves the interface strength, avoids welding heating to reduce the interface strength, and improves the service life of the equipment. When the expansion block is inserted, the magnetic block 84 at the bottom of the round table 81 is attracted to pull the connecting rod 83 to change the height of the gravity block 82. The top contact 85 on the gravity block 82 makes the indicator light 87 light up, indicating the user to reach the expansion position, so as to achieve the effect of self-positioning the relative distance between the expansion block and the pipe mouth when the expansion block is inserted, and improve the positioning ability of the expansion block.

[0043] A method for fixing an anode in a plasma facility for treating corrosive waste gas comprises the following steps:

[0044] S1: welding the metal steel plate to the plasma equipment body;

[0045] S2: Drill holes at equal distances on the surface of the metal steel plate;

[0046] S3: Pass the prepared metal tube parallel to the hole;

[0047] S4: insert the tube expansion devices one by one and locate the tube expansion positions;

[0048] S5: Start the hydraulic assembly to make the tube expansion device extend the radius of the expanded metal tube to fit into the hole;

[0049] S6: When the expansion pressure reaches the set pressure, the hydraulic assembly automatically releases pressure;

[0050] S7: After the automatic pressure relief is completed, pull out the tube expansion device and insert the next tube to be expanded.

[0051] After a hole is opened on the steel plate, the prepared metal pipe is inserted flush through the hole plate, and then the rubber expansion block is inserted into the metal pipe. After the expansion block is positioned, the external hydraulic component is started to make the expansion block prop up the inner wall of the metal pipe outward, so that the expanded position of the metal pipe is firmly combined with the hole plate. When the hydraulic component reaches the set pressure, it automatically releases the pressure, the expansion block returns to its original state, and the metal pipe is expanded and stuck in the hole plate. The expansion block is taken out and the next metal pipe is continued, so as to improve the interface strength and the assembly efficiency, avoid welding smoke generated during welding, and greatly extend the service life of the plasma equipment.

[0052] Working process and principle: Based on the surface of the metal plate frame 1, a hole 2 is opened, and an anode tube 3 is inserted into the inside of the hole 2. After the metal plate frame 1 is assembled, the anode tubes 3 are inserted into the hole 2 one by one. At this time, the expansion block 6 is taken out and inserted into the anode tube 3. Based on the bottom end of the expansion block 6, a round table 81 is fixedly connected. An active magnetic ring 86 is placed under the anode tube 3 and the hole 2 where the expansion block 6 is inserted. The active magnetic ring 86 is adsorbed on the outer wall of the anode tube 3. As the expansion block 6 is extended, the magnetic block 8 connected to the internal limit of the round table 81 is Under the effect of the gradually increasing magnetic attraction, the left and right magnetic blocks 84 gradually move away from each other until they reach the cross section where the active magnetic ring 86 is located. At this time, the magnetic attraction of the magnetic blocks 84 is the largest, and the distance between the magnetic blocks 84 is the largest. Under the traction of the connecting rod 83, the gravity block 82 gradually moves up to lift the contact 85. Because the contact 85 is electrically connected to the indicator light 87, the indicator light 87 is on. The user can see the light of the indicator light 87 through the tube mouth of the anode tube 3, and the positioning of the expansion block 6 is completed. The hydraulic assembly connected to the hydraulic tube 79 is turned on to start the expansion.

[0053] Since the internal limit of the expansion block 6 is connected to the oil cylinder 71, the interior of the expansion block 6 is connected to the hydraulic pipe 79. As the liquid pressure in the hydraulic pipe 79 increases, the oil cylinder 71 is gradually moved downward under the pressure. Because the bottom center of the oil cylinder 71 is fixedly connected to the support shaft 72, the bottom and the middle of the support shaft 72 are respectively fixedly connected to the lifting plate 73, and the outer periphery of the lifting plate 73 is connected to the rubber block 75 through the hinge rod 74. At this time, when the lifting plate 73 moves downward and cooperates with the hinge rod 74 to push, the rubber block 75 moves away from the support shaft 72. Because the end of the rubber block 75 away from the support shaft 72 is fixedly connected to the arc plate 76, and the arc plates 76 are connected in a limit position in pairs, as the lifting plate 73 continues to move downward, the rubber block 75 and the arc plate 76 are connected in a limit position in pairs. The curved plate 76 gradually stretches and supports the inside of the anode tube 3. As the internal pressure of the hydraulic tube 79 continues to increase, the rubber block 75 supports the inner wall of the anode tube 3 outwards. At the same time, the curved plates 76 expand and fit the inner wall of the anode tube 3, and simultaneously support the anode tube 3 outwards, so that the radius of the contact surface of the anode tube 3 gradually increases until it is close to the inner wall of the hole 2. At this time, the hydraulic component reaches the set pressure and the elastic force of the spring 77 resets the lifting plate 73, so that the rubber block 75 and the curved plate 76 are reset, so that the expansion block 6 can be smoothly taken out of the expanded anode tube 3 to prepare for the next anode tube 3, thereby achieving the effect of expanding fixation to improve the interface strength, avoiding welding heating to reduce the interface strength, and improving the service life of the equipment.

[0054] In summary, the device for fixing the anode of the plasma facility for treating corrosive waste gas is connected to the oil cylinder 71 through the internal limit of the expansion block 6. When the expansion block 6 is positioned, the external hydraulic component connected to the hydraulic pipe 79 is started. As the internal hydraulic pressure of the hydraulic pipe 79 increases, the oil cylinder 71 is hydraulically moved downward, causing the support shaft 72 and the lifting plate 73 to move downward. In cooperation with the transmission of the hinge rod 74, the rubber block 75 gradually extends to one side of the inner wall of the anode tube 3, and the arc plates 76 are limited and stretched to fit the inner wall of the anode tube 3. As the pressure on the oil cylinder 71 gradually increases, the rubber block 75 drives the arc plates 76 to prop up the anode tube 3 outward, so that the anode tube 3 is tightly clamped in the hole 2. The hydraulic component is closed, and the lifting plate 73 is moved upward by the elastic force of the spring 77 to reset the rubber block 75 and the arc plates 76, so that the expansion block 6 can be smoothly removed, thereby achieving the effect of improving the interface strength by expansion type fixation, avoiding welding heating to reduce the interface strength, and improving the service life of the equipment.

[0055] In addition, the device for fixing the anode of the plasma facility for treating the corrosive waste gas is fixedly connected with a round table 81 through the bottom end of the expansion block 6. When the expansion block 6 is inserted into the anode tube 3, the active magnetic ring 86 is taken out and placed just below the hole 2. As the round table 81 moves downward, the magnetic blocks 84 are moved away from each other by the magnetic attraction. Under the transmission of the connecting rod 83, the gravity block 82 presses the contact point 85, so that the indicator light 87 lights up, indicating that the user has reached the expansion position, thereby achieving the effect of self-positioning the relative distance between the expansion block and the tube mouth when the expansion block is inserted, and improving the positioning ability of the expansion block.

[0056] In addition, the method for fixing the anode of the plasma facility for treating corrosive waste gas is as follows: after a hole is opened in the steel plate, a prepared metal pipe is passed through the hole plate in a flush manner, and then a rubber expansion block is inserted into the metal pipe. After the expansion block is positioned, an external hydraulic component is started to make the expansion block prop up the inner wall of the metal pipe outward, so that the expanded position of the metal pipe is firmly combined with the hole plate. When the hydraulic component reaches the set pressure, it automatically releases the pressure, the expansion block returns to its original state, and the metal pipe is expanded and stuck in the hole plate. The expansion block is taken out, and the next metal pipe is continued, so as to achieve the effect of improving the interface strength and the assembly efficiency, avoiding welding smoke generated during welding, and greatly extending the service life of the plasma equipment.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for fixing an anode for treating corrosive waste gas in a plasma facility, comprising a tube expansion mechanism (7), characterized in that: The tube expansion mechanism (7) comprises an oil cylinder (71), the bottom end of the oil cylinder (71) is fixedly connected to a support shaft (72), the bottom of the support shaft (72) is fixedly connected to a lifting plate (73), the outer periphery of the lifting plate (73) is hinged with a hinge rod (74), the other end of the hinge rod (74) is hinged with a rubber block (75), the end of the rubber block (75) away from the lifting plate (73) is fixedly connected to an arc plate (76), the bottom end of the lifting plate (73) is elastically connected to a spring 1 (77), an end cover (78) is arranged above the oil cylinder (71), a hydraulic pipe (79) is sleeved inside the end cover (78), the rubber block (75) is arranged at equal angles with respect to the axis of the support shaft (72), the arc plates (76) are divided into two groups, the arc plates (76) are limitedly connected in pairs, and the hydraulic pipe (79) is connected to an external hydraulic component; The positioning mechanism (8) also includes a truncated table (81), the center limit of the truncated table (81) is connected to a gravity block (82), the left and right ends of the gravity block (82) are hinged with connecting rods (83), the other end of the connecting rod (83) is hinged with a magnetic block (84), a contact point (85) is arranged above the gravity block (82), an active magnetic ring (86) is arranged on the periphery of the truncated table (81), an indicator light (87) is arranged above the truncated table (81), the interior of the truncated table (81) is hollow, the mass of the gravity block (82) is greater than the mass of the magnetic block (84), the left and right ends of the gravity block (82) are connected to the magnetic block (84) through the connecting rod (83), the magnetic poles of the corresponding surfaces of the magnetic block (84) and the active magnetic ring (86) are in opposite directions, and the contact point (85) and the indicator light (87) are electrically connected; It also comprises a metal plate frame (1), a hole (2) is provided on the surface of the metal plate frame (1), an anode tube (3) is inserted into the inside of the hole (2), insulating columns (4) are fixedly connected to the left and right ends of the top of the metal plate frame (1), the top of the insulating column (4) is fixedly connected to a top frame (5), an expansion block (6) is arranged inside the anode tube (3), an expansion mechanism (7) is connected to the internal limit of the expansion block (6), and a positioning mechanism (8) is fixedly connected to the bottom end of the expansion block (6).

2. The device for fixing an anode for treating corrosive waste gas in a plasma facility according to claim 1, characterized in that: The center of the bottom of the oil cylinder (71) is fixedly connected to a support shaft (72), the bottom and the periphery of the middle of the support shaft (72) are respectively fixedly connected to a lifting plate (73), and one end of the rubber block (75) close to the support shaft (72) is hingedly connected to a hinge rod (74).

3. The device for fixing an anode for treating corrosive waste gas in a plasma facility according to claim 1, characterized in that: The metal plate frame (1) is divided into upper and lower layers, the radius of the hole (2) is larger than the radius of the anode tube (3), the insulating column (4) is a columnar body made of polytetrafluoroethylene material, the top of the expansion block (6) is threadedly connected to an end cover (78), the internal limit of the expansion block (6) is connected to an oil cylinder (71), and the interior of the expansion block (6) is connected to a hydraulic pipe (79).

4. The device for fixing an anode for treating corrosive waste gas in a plasma facility according to claim 1, characterized in that: The expansion tube block (6) is internally limited and connected to a rubber block (75); an indicator light (87) is fixedly connected to the periphery of the top of the expansion tube block (6); the radius of the expansion tube block (6) is smaller than the radius of the inner wall of the anode tube (3); and an active magnetic ring (86) is arranged on the periphery of the anode tube (3).

5. A method for fixing an anode for treating corrosive waste gas in a plasma facility, using the device for fixing an anode for treating corrosive waste gas in a plasma facility as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1: welding the metal steel plate to the plasma equipment body; S2: Drill holes at equal distances on the surface of the metal steel plate; S3: Pass the prepared metal tube parallely through the hole plate; S4: insert the tube expansion devices one by one and locate the tube expansion positions; S5: Start the hydraulic assembly to make the tube expansion device extend the radius of the expanded metal tube to fit into the hole; S6: When the expansion pressure reaches the set pressure, the hydraulic assembly automatically releases pressure; S7: After the automatic pressure relief is completed, pull out the tube expansion device and insert the next tube to be expanded.

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