Electrode connecting device of plasma furnace

Abstract

The utility model belongs to the field of plasma furnaces, particularly relates to an electrode connecting device of a plasma furnace, and aims to solve the problems that a worker needs to use a tool matched with an insulating bolt to disassemble an electrode when the electrode is replaced due to the fact that a clamping piece is connected with a pipe orifice through the insulating bolt in the prior art. In order to solve the problems that the existing plasma furnace has certain limitation, and when a worker forgets to carry tools, insulation bolts of the tools cannot be disassembled and assembled, certain inconvenience exists, the working efficiency is influenced, and to-be-improved, the utility model provides the following scheme that the plasma furnace comprises a plasma furnace body, a connecting mechanism and an electrode mechanism; a connecting pipe is arranged on the plasma furnace body, three dovetail blocks are welded on the connecting pipe, and the connecting mechanism is arranged on the connecting pipe and connected with the three dovetail blocks. In the process of replacing the electrode bar, the effect of rapidly replacing the electrode bar can be achieved without an external tool.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma furnaces, in particular to an electrode connecting device of a plasma furnace. Background Art

[0002] Plasma technology has inherent advantages in the treatment of hazardous waste. It can handle difficult-to-treat waste without negatively impacting the environment, and can also recover valuable by-products. This not only meets today's increasingly stringent environmental requirements, but also conforms to the principles of a circular economy and sustainable development.

[0003] In the prior art, in order to ensure that plasma is continuously generated throughout the entire melting process, an additional clamping system with vertical and horizontal movement functions is required to continuously adjust the position of the first electrode. The clamping system requires additional manual operation and increases the manufacturing cost of the melting furnace. To address the above problem, document No. 202223189289.5 discloses a plasma torch and a plasma furnace having the same, which includes a hollow first electrode, a second electrode, and a first insulating member; the first insulating member is attached to the inner wall of the first electrode; at least a portion of the second electrode is disposed inside the first electrode, and both ends of the second electrode extend out of the first insulating member;

[0004] However, after reading the above patent documents, the following deficiencies were found: when in use, since the clamping part is connected to the pipe mouth through its insulating bolt, when replacing the electrode, the staff needs to use tools compatible with its insulating bolts to perform disassembly operations, which has certain limitations, and when the staff forgets to bring their tools, they cannot disassemble and assemble their insulating bolts, which is inconvenient and affects work efficiency, and needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an electrode connecting device for a plasma furnace.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An electrode connecting device for a plasma furnace comprises a plasma furnace body, a connecting mechanism and an electrode mechanism;

[0008] The plasma furnace body is provided with a connecting pipe, and three dovetail blocks are welded on the connecting pipe. The connecting mechanism is provided on the connecting pipe and connected to the three dovetail blocks.

[0009] The connecting mechanism includes a sleeve, a telescopic rod, a slider and a spring. The sleeve is sleeved on the connecting pipe. Three dovetail grooves are provided on the sleeve, and the three dovetail grooves are respectively clamped with the three dovetail blocks. Three sliding grooves 1 are provided on the sleeve, and two sliding grooves 1 correspond to the three dovetail grooves respectively. Sliders are slidably connected in the three sliding grooves 1, and the three sliders are respectively contacted and connected with the three dovetail blocks. The electrode mechanism is provided on the sleeve and plugged into the connecting pipe. Through the coordinated design between the plasma furnace body, the connecting pipe, the connecting mechanism and the electrode mechanism, not only can the raw material of the plasma furnace body be processed, but also the electrode rod can be quickly replaced without external tools during the replacement of the electrode rod, thereby improving convenience and practicality.

[0010] Specifically, the tops of the three sliders are fixedly connected with telescopic rods, the three telescopic rods are fixedly connected to the sleeves, and the three sliding grooves are respectively connected with the three dovetail grooves, so that the three dovetail blocks are respectively connected with the three dovetail grooves.

[0011] Specifically, springs are fixedly installed in the three telescopic rods, and the three sliders are restored to their original states through the elastic potential energy of the three springs. The three telescopic rods, sliders, and dovetail blocks are arranged at equal intervals on the sleeve and the connecting pipe.

[0012] Specifically, the electrode mechanism includes electrode rod 1, conductive plate 1, insulating rubber 1, electrode rod 2, conductive plate 2, insulating rubber 2, insulating circular plate, and air holes. Electrode rod 1 is fixedly connected to the sleeve. Electrode rod 1 is plugged into the connecting tube and one end extends into the plasma furnace body, which facilitates the processing of raw materials in the plasma furnace body.

[0013] Specifically, a conductive plate 1 is provided at one end of the electrode rod 1, an electrode rod 2 is inserted into the electrode rod 1, a conductive plate 2 is provided at one end of the electrode rod 2, an insulating rubber 1 is provided between the conductive plate 2 and the conductive plate 1, and a set of the insulating rubber is provided on the electrode rod 2. The action of the insulating rubber 1 and the insulating rubber 2 ensures that the arc starting area is at the ends of the two electrode rods.

[0014] Specifically, an insulating rubber 2 is provided inside the electrode rod 1, and the insulating rubber 2 is sleeved on the electrode rod 2 and a cavity is provided between the insulating rubber 2 and the electrode rod 2. The insulating rubber 2 is sealedly connected to the insulating rubber 1. An insulating circular plate is fixedly sleeved at one end of the electrode rod 2, and the insulating circular plate is fixedly connected to the electrode rod 1. A plurality of through holes are opened on the insulating circular plate, and the discharge of the plasma carrier gas is facilitated by the action of the plurality of through holes.

[0015] Specifically, the insulating rubber is provided with air holes, the air holes are connected to the outer wall gas source, and the air holes are connected to the cavity, so as to facilitate the delivery of plasma carrier gas to the ends of the electrode rod 1 and the electrode rod 2. An insulating layer is provided on the outer wall of the electrode rod 1, and the conductive plate 1 and the conductive plate 2 are both provided with terminal posts, so as to facilitate connection with an external power supply.

[0016] Specifically, the three dovetail grooves are respectively adapted to the three dovetail blocks, one side of the three sliders is fixedly connected with a push rod, and the three push rods are slidably connected to the sleeve, so that the three sliders are easily pushed by the action of the three push rods.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The present invention provides an electrode connection device for a plasma furnace. First, the three push rods are used to push the three sliders to slide upward on the sleeve for a certain distance, and the bottom plates of the three sliders are moved to the top of the three dovetail grooves on the sleeve. During this process, the three sliders act on the three telescopic rods respectively, and the three telescopic rods are contracted, and the three springs are compressed and stored. After the three sliders release the obstruction of the three dovetail blocks respectively, the sleeve is rotated on the connecting pipe by a certain angle, and the three dovetail blocks are respectively disengaged from the three dovetail grooves on the sleeve, and the three dovetail blocks are respectively corresponding to the three sliding grooves on the sleeve. After that, the connecting pipe is pulled out of the sleeve, and the electrode rod is pulled out of the connecting pipe, thereby achieving the effect of quickly disassembling the sleeve and the electrode mechanism; conversely, the effect of quickly installing the electrode mechanism and the sleeve can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative. The structures, proportions, sizes, etc. depicted in this specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no technical significance. Any structural modifications, changes in proportional relationships, or adjustments in sizes are not intended to limit the implementation of the present invention.

[0020] Figure 1 This is a schematic diagram of the assembly structure of an electrode connection device for a plasma furnace proposed in the present invention;

[0021] Figure 2This is a schematic diagram of the three-dimensional structure of an electrode connection device for a plasma furnace proposed in the present invention;

[0022] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 5 It is a structural diagram of the connecting pipe, sleeve, slider and dovetail block.

[0025] In the figure: 1. Plasma furnace body; 2. Connecting pipe; 3. Electrode rod 1; 4. Sleeve; 5. Dovetail block; 6. Telescopic rod; 7. Slider; 8. Spring; 9. Conductive plate 1; 10. Insulating rubber 1; 11. Electrode rod 2; 12. Conductive plate 2; 13. Insulating rubber 2; 14. Insulating circular plate; 15. Air hole; 16. Insulating layer; 17. Push rod. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0027] Reference Figure 1-5 , an electrode connecting device for a plasma furnace, comprising a plasma furnace body 1, a connecting mechanism and an electrode mechanism;

[0028] The plasma furnace body 1 is provided with a connecting pipe 2, on which three dovetail blocks 5 are welded. The connecting mechanism is provided on the connecting pipe 2 and connected to the three dovetail blocks 5.

[0029] The connecting mechanism includes a sleeve 4, a telescopic rod 6, a slider 7 and a spring 8. The sleeve 4 is sleeved on the connecting tube 2. Three dovetail grooves are provided on the sleeve 4. The three dovetail grooves are respectively clamped with the three dovetail blocks 5. Three sliding grooves 1 are provided on the sleeve 4. Two sliding grooves 1 correspond to the three dovetail grooves respectively. Sliders 7 are slidably connected in the three sliding grooves 1. The three sliders 7 are respectively in contact with the three dovetail blocks 5. The electrode mechanism is provided on the sleeve 4 and plugged into the connecting tube 2. Through the coordinated design between the plasma furnace body 1, the connecting tube 2, the connecting mechanism and the electrode mechanism, not only can the raw material of the plasma furnace body 1 be processed, but also the electrode rod can be quickly replaced without external tools during the replacement of the electrode rod, thereby improving convenience and practicality.

[0030] In this embodiment, the tops of the three sliders 7 are fixedly connected to the telescopic rods 6, and the three telescopic rods 6 are fixedly connected to the sleeve 4. The three sliding grooves are respectively connected to the three dovetail grooves, so that the three dovetail blocks 5 are respectively connected to the three dovetail grooves.

[0031] In this embodiment, springs 8 are fixedly installed in the three telescopic rods 6, and the three sliders 7 are restored to their original states through the elastic potential energy of the three springs 8. The three telescopic rods 6, sliders 7, and dovetail blocks 5 are arranged at equal intervals on the sleeve 4 and the connecting pipe 2 respectively.

[0032] In this embodiment, the electrode mechanism includes an electrode rod 3, a conductive plate 9, an insulating rubber 10, an electrode rod 11, a conductive plate 12, an insulating rubber 13, an insulating circular plate 14, and an air hole 15. The electrode rod 3 is fixedly connected to the sleeve 4. The electrode rod 3 is plugged into the connecting tube 2 and one end extends into the plasma furnace body 1, which facilitates the processing of the raw materials in the plasma furnace body 1.

[0033] In this embodiment, a conductive plate 19 is provided at one end of the electrode rod 3, an electrode rod 2 11 is inserted into the electrode rod 3, a conductive plate 2 12 is provided at one end of the electrode rod 2 11, an insulating rubber 10 is provided between the conductive plate 2 12 and the conductive plate 19, and the insulating rubber 10 is sleeved on the electrode rod 2 11. The action of the insulating rubber 10 and the insulating rubber 2 13 ensures that the arc starting area is at the ends of the two electrode rods.

[0034] In this embodiment, an insulating rubber 2 13 is provided in the electrode rod 1 3 , the insulating rubber 2 13 is sleeved on the electrode rod 2 11 and a cavity is provided between the insulating rubber 2 13 and the electrode rod 11 , the insulating rubber 2 13 is sealedly connected to the insulating rubber 1 10 , an insulating circular plate 14 is fixedly sleeved at one end of the electrode rod 2 11 , the insulating circular plate 14 is fixedly connected to the electrode rod 1 3 , and a plurality of through holes are opened on the insulating circular plate 14 , which facilitates the discharge of the plasma carrier gas through the action of the plurality of through holes.

[0035] In this embodiment, an air hole 15 is provided on the insulating rubber 10, and the air hole 15 is connected to the outer wall gas source. The air hole 15 is connected to the cavity, which is convenient for transporting plasma carrier gas to the ends of the electrode rod 1 3 and the electrode rod 2 11. An insulating layer 16 is provided on the outer wall of the electrode rod 3, and the conductive plate 1 9 and the conductive plate 2 12 are both provided with terminal posts, which are convenient for connection to an external power supply.

[0036] In this embodiment, the three dovetail grooves are respectively adapted to the three dovetail blocks 5, and one side of the three sliders 7 is fixedly connected with a push rod 17, and the three push rods 17 are all slidably connected to the sleeve 4, and the three sliders 7 are easily pushed by the action of the three push rods 17.

[0037] Working principle: When in use, the terminals on the conductive plate 1 9 and the conductive plate 2 12 are connected to the positive and negative electrodes of the external power supply through wires, thereby delivering electric charge to the electrode rod 1 3 and the electrode rod 2 11. Since there is a certain distance between the electrode rod 1 3 and one end of the electrode rod 2 11, an arc is generated between the electrode rod 1 3 and the electrode rod 2 11. At the same time, the air holes 15 on the insulating rubber 10 are used to deliver input and conduct plasma carrier gas, such as oxidizing gas, nitrogen, etc., into the cavity between the insulating rubber 2 13 and the electrode rod 2 11, and are discharged through the multiple through holes on the insulating circular plate 14. At this time, these gases form plasma under the action of the electric arc, thereby achieving the effect of processing the raw materials in the plasma furnace body 1;

[0038] When the electrode mechanism needs to be replaced, the three sliders 7 are first pushed upward on the sleeve 4 by the action of the three push rods 17 to slide a certain distance, and the bottom plates of the three sliders 7 are respectively moved above the three dovetail grooves on the sleeve 4. During this process, the three sliders 7 act on the three telescopic rods 6 respectively, and the three telescopic rods 6 are contracted, and the three springs 8 are compressed and stored. After the three sliders 7 release the obstruction of the three dovetail blocks 5 respectively, the sleeve 4 is rotated a certain angle on the connecting tube 2, and the three dovetail blocks 5 are respectively disengaged from the three dovetail grooves on the sleeve 4, and the three dovetail blocks 5 are respectively corresponding to the three sliding grooves 1 on the sleeve 4. After that, the connecting tube 2 is pulled out from the sleeve 4, and the electrode rod 1 3 is pulled out from the connecting tube 2, thereby achieving the effect of quickly disassembling the sleeve 4 and the electrode mechanism.

[0039] On the contrary, the electrode mechanism and the sleeve 4 can be quickly installed.

[0040] The technical progress achieved by the present invention compared with the existing technology is that through the cooperation of various components, not only can the raw materials of the plasma furnace body 1 be processed, but also the electrode rods can be quickly replaced without external tools during the replacement process, thereby improving convenience and practicality.

Claims

1. An electrode connection device for a plasma furnace, characterized in that: It comprises a plasma furnace body (1), a connecting mechanism and an electrode mechanism; The plasma furnace body (1) is provided with a connecting pipe (2), three dovetail blocks (5) are welded on the connecting pipe (2), and the connecting mechanism is arranged on the connecting pipe (2) and connected to the three dovetail blocks (5); The connecting mechanism includes a sleeve (4), a telescopic rod (6), a slider (7) and a spring (8), the sleeve (4) is sleeved on the connecting tube (2), the sleeve (4) is provided with three dovetail grooves, the three dovetail grooves are respectively engaged with the three dovetail blocks (5), the sleeve (4) is provided with three sliding grooves 1, two of the sliding grooves 1 correspond to the three dovetail grooves, and the three sliding grooves 1 are all slidably connected with sliders (7), the three sliders (7) are respectively in contact with the three dovetail blocks (5), and the electrode mechanism is arranged on the sleeve (4) and plugged into the connecting tube (2).

2. The electrode connection device of a plasma furnace according to claim 1, characterized in that: The tops of the three sliding blocks (7) are all fixedly connected to telescopic rods (6), the three telescopic rods (6) are all fixedly connected to the sleeves (4), and the three sliding grooves are respectively connected to the three dovetail grooves.

3. The electrode connection device of a plasma furnace according to claim 2, characterized in that: A spring (8) is fixedly installed in each of the three telescopic rods (6), and the three telescopic rods (6), the slider (7), and the dovetail block (5) are arranged at equal intervals on the sleeve (4) and the connecting pipe (2).

4. The electrode connection device for a plasma furnace according to claim 1, characterized in that: The electrode mechanism comprises an electrode rod 1 (3), a conductive plate 1 (9), an insulating rubber 1 (10), an electrode rod 2 (11), a conductive plate 2 (12), an insulating rubber 2 (13), an insulating circular plate (14), and an air hole (15). The sleeve (4) is fixedly connected with the electrode rod 1 (3). The electrode rod 1 (3) is plugged into the connecting tube (2) and one end of the electrode rod extends into the plasma furnace body (1).

5. The electrode connection device for a plasma furnace according to claim 4, characterized in that: One end of the electrode rod one (3) is provided with a conductive plate one (9), the electrode rod two (11) is inserted into the electrode rod one (3), one end of the electrode rod two (11) is provided with a conductive plate two (12), an insulating rubber one (10) is provided between the conductive plate two (12) and the conductive plate one (9), and the insulating rubber one (10) is sleeved on the electrode rod two (11).

6. The electrode connection device for a plasma furnace according to claim 5, characterized in that: An insulating rubber 2 (13) is provided inside the electrode rod 1 (3), the insulating rubber 2 (13) is sleeved on the electrode rod 2 (11) and a cavity is provided between the insulating rubber 2 (13) and the electrode rod 2 (11), the insulating rubber 2 (13) is sealedly connected to the insulating rubber 1 (10), an insulating circular plate (14) is fixedly sleeved on one end of the electrode rod 2 (11), the insulating circular plate (14) is fixedly connected to the electrode rod 1 (3), and a plurality of through holes are opened on the insulating circular plate (14).

7. The electrode connection device for a plasma furnace according to claim 6, characterized in that: The insulating rubber (10) is provided with an air hole (15), and the air hole (15) is connected to the cavity. The outer wall of the electrode rod (3) is provided with an insulating layer (16), and the conductive plate (9) and the conductive plate (12) are both provided with a terminal.

8. The electrode connection device for a plasma furnace according to claim 1, characterized in that: The three dovetail grooves are respectively matched with the three dovetail blocks (5), and one side of the three sliders (7) is fixedly connected with a push rod (17), and the three push rods (17) are slidably connected with the sleeve (4).

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