A special electrode sealing process

Abstract

The present invention provides a special electrode sealing process applied to the field of electrode sealing. A sealing layer and a self-testing layer are arranged inside and outside the electrode. When a gap appears between the sealing layer and the electrode, the smoke in the electric furnace overflows along the gap and gathers in a closed cavity formed by the sealing layer and the self-testing layer. On the one hand, the self-testing layer is locally convexed by pressurization to achieve visual detection, so that the staff can find the smoke overflow in time and deal with it. On the other hand, the smoke transfers heat to the self-testing layer, and the self-testing layer transfers heat to the periphery of the sealing layer by outward movement, so that the periphery of the sealing layer undergoes thermal expansion from the outside to the inside, thereby enhancing the sealing between the self-testing layer and the electrode, reducing the generation of smoke leakage, and reducing the impact on the working environment and personnel. In addition, when too much smoke overflows, the transparent flexible bag provides a temporary storage area for the overflowed smoke, so that it is not easy to be released into the air environment, providing another guarantee for the air environment and work safety.

Description

Technical Field

[0001] The present application relates to the field of electrode sealing, and in particular to a special electrode sealing process. Background Art

[0002] An electric furnace is an electric heating device that uses electric heating to achieve the desired process purpose (such as smelting, melting, heating, heat treatment, sintering, drying, etc. of materials).

[0003] Electrode seal is the main auxiliary equipment of electric furnace device. It mainly uses the sealing device to cover the electrode in the electrode hole to prevent the gaseous substances generated in the furnace from overflowing.

[0004] Most of the existing electrode sealing devices have the problem of poor tracking performance (following the electrode). As the electrode moves, gaps are likely to appear on the sealing surface around the electrode, causing smoke leakage. When the processing object is solid waste or hazardous waste, the smoke overflowing from the electrode seal will cause serious pollution to the working environment and bring great harm to the health of the operators. Summary of the invention

[0005] The purpose of this application is to solve the problem that the existing electrode sealing device is prone to gaps and smoke leakage due to electrode movement. Compared with the existing technology, a special electrode sealing process is provided, including the following steps:

[0006] S1. Installation 1: First, tightly fit the sealing layer on the outer end of the electrode of the electric furnace to seal the connection between the electrode hole and the electrode;

[0007] S2. Installation 2: The self-test layer is placed on the sealing layer and the outside of the electrode, and is connected and fixed to the flange at the upper end of the electric furnace cover;

[0008] S3, smoke leakage self-inspection: When a gap appears between the sealing layer and the electrode, the smoke in the electric furnace overflows along the gap and gathers in the closed cavity formed by the sealing layer and the self-inspection layer. On the one hand, the self-inspection layer is partially convexed by increasing the pressure, so as to realize visual inspection;

[0009] S4. Sealing: On the other hand, the smoke transfers heat to the self-testing layer, and the self-testing layer transfers the heat to the periphery of the sealing layer by moving outward, causing the periphery of the sealing layer to expand from the outside to the inside, thereby enhancing the sealing between itself and the electrode and reducing the degree of smoke leakage.

[0010] Furthermore, the sealing layer comprises an outer sleeve, the inner wall of the outer sleeve is fixedly connected to the temperature-sensitive deformation layer, and the inner wall of the temperature-sensitive deformation layer is fixedly connected to a plurality of vertically superimposed flexible sealing layers.

[0011] Furthermore, the temperature-sensitive deformation layer includes a heat-conducting ring sheet and an expansion layer distributed up and down. The heat-conducting ring sheet and the outer sleeve are both made of heat-conducting materials, and the expansion layer is made of heat-expanding materials.

[0012] Furthermore, the self-test layer comprises an outer cylinder, the inner diameter of the outer cylinder is the same as the outer diameter of the outer sleeve, and the inner wall of the outer cylinder is fixedly connected with an upper sealing layer.

[0013] Furthermore, a plurality of through holes are formed on the outer cylinder, and a visual inspection strip is slidably connected inside the through holes, and the visual inspection strip is located at the lower side of the upper sealing layer.

[0014] Furthermore, the visual inspection strip includes an external display rod and a heat conductive block, one end of the external display rod is fixedly connected to one end of the heat conductive block, and the external display rod is located on a side close to the outside world.

[0015] Furthermore, the outer surface of the display stick is coated with a colored coating, and the heat conducting block is made of a heat conducting material.

[0016] Furthermore, a plurality of mounting holes are provided on the outer cylinder, and bolt assemblies are connected between the mounting holes and the flanges.

[0017] Optionally, the self-inspection layer also includes a sealing ring, the outer end of the sealing ring is fixedly connected to one end of a transparent flexible bag, the other end of the transparent flexible bag is fixedly connected to the outer end of the outer tube, the visual inspection strip is located on the inner side of the transparent flexible bag, and an air release hole is opened at the upper end of the visual inspection strip.

[0018] Optionally, a gas release tube communicating with the inner side of the transparent flexible bag is fixedly connected to the transparent flexible bag, and one end of the gas release tube away from the transparent flexible bag is connected to and communicated with the gas collecting device.

[0019] Compared with the prior art, the advantages of this application are:

[0020] (1) The present application arranges a sealing layer and a self-testing layer inside and outside the electrode. When a gap appears between the sealing layer and the electrode, the smoke in the electric furnace overflows along the gap and gathers in the closed cavity formed by the sealing layer and the self-testing layer. On the one hand, the self-testing layer is partially convexed by pressurization, so that visual detection can be achieved, so that the staff can find the smoke overflow in time and deal with it. On the other hand, the smoke transfers heat to the self-testing layer, and the self-testing layer transfers heat to the periphery of the sealing layer by moving outward, so that the periphery of the sealing layer undergoes thermal expansion from the outside to the inside, thereby enhancing the sealing between the sealing layer and the electrode, reducing the generation of smoke leakage, and reducing the impact on the working environment and personnel.

[0021] (2) When smoke overflow occurs and the expansion layer has expanded due to heat, most of the inspection strip moves to the outside of the outer tube due to the continuous overflow of smoke. In order to reduce the probability of the inspection strip falling out from the inside of the perforation, the smoke can enter the transparent flexible bag along the release hole through the setting of the release hole, and then be discharged and collected through the release pipe for subsequent treatment; the transparent flexible bag provides a temporary storage area for the overflowing smoke and does not affect the visual prompt function of the inspection strip. Even if the inspection strip falls from the perforation due to smoke, the smoke is not easily released into the air environment, which provides another guarantee for the air environment and work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the process flow chart of this application;

[0023] Figure 2 This is a schematic diagram of the front structure of the sealing layer and the self-test layer of the present application;

[0024] Figure 3 This is a schematic diagram of the front structure after the sealing layer and self-test layer of the present application are installed;

[0025] Figure 4 This is a partial stereogram of the sealing layer and the self-test layer of the present application after installation;

[0026] Figure 5 This is a partial stereogram of the sealing layer of the present application after installation;

[0027] Figure 6 This is a schematic diagram of the front structure of this application when smoke overflow occurs Figure 1 ;

[0028] Figure 7 This is a schematic diagram of the front structure of this application when smoke overflow occurs Figure 2 ;

[0029] Figure 8 This is a schematic diagram of the front structure after the sealing layer and the self-test layer are installed in Example 2 of the present application;

[0030] Fig. 9 for Figure 8 The structural diagram at A in the middle;

[0031] Fig.10 This is a partial stereoscopic view of the sealing layer and the self-test layer after installation in Example 2 of the present application.

[0032] Description of the numbers in the figure:

[0033] 1 flange, 21 flexible sealing layer, 22 heat conductive ring sheet, 23 expansion layer, 24 outer sleeve, 31 outer cylinder, 32 upper sealing layer, 33 inspection strip, 3301 external display rod, 3302 heat conductive block, 34 transparent flexible bag, 35 sealing ring, 36 air release pipe, 301 air release hole, 4 bolt assembly. DETAILED DESCRIPTION

[0034] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0035] Embodiment 1:

[0036] The present invention provides a special electrode sealing process, please refer to Figure 1, including the following steps:

[0037] S1. Installation 1: First, tightly fit the sealing layer on the outer end of the electrode of the electric furnace to seal the connection between the electrode hole and the electrode;

[0038] S2, Installation 2: The self-test layer is placed on the sealing layer and the outside of the electrode, and is connected and fixed to the flange 1 at the upper end of the electric furnace cover;

[0039] S3, smoke leakage self-inspection: When a gap appears between the sealing layer and the electrode, the smoke in the electric furnace overflows along the gap and gathers in the closed cavity formed by the sealing layer and the self-inspection layer. On the one hand, the self-inspection layer is partially convexed by increasing the pressure, so as to realize visual inspection;

[0040] S4. Sealing: On the other hand, the smoke transfers heat to the self-testing layer, and the self-testing layer transfers the heat to the periphery of the sealing layer by moving outward, causing the periphery of the sealing layer to expand from the outside to the inside, thereby enhancing the sealing between itself and the electrode and reducing the degree of smoke leakage.

[0041] See also Figure 2 The sealing layer includes an outer sleeve 24, the inner wall of the outer sleeve 24 is fixedly connected to the temperature-sensitive deformation layer, and the inner wall of the temperature-sensitive deformation layer is fixedly connected to a plurality of vertically superimposed flexible sealing layers 21. Figure 3 and Figure 5 When the sealing layer is put on the outside of the electrode, a seal is formed between the flexible sealing layer 21 and the electrode to block the gaseous substances in the electric furnace.

[0042] See also Figure 2 The temperature-sensitive deformation layer includes a heat-conducting ring sheet 22 and an expansion layer 23 distributed above and below. The heat-conducting ring sheet 22 and the outer sleeve 24 are made of heat-conducting materials, and the expansion layer 23 is made of heat-expanding materials, such as Figure 6 As shown in FIG. 1 , when a gap is formed between the flexible sealing layer 21 and the electrode and smoke overflow occurs, the smoke temperature will eventually be transferred to the heat-conducting ring sheet 22 and the outer sleeve 24, so that the two heat the expansion layer 23 in multiple directions, thereby achieving thermal expansion of the expansion layer 23, as shown in FIG. Figure 7 As shown, the flexible sealing layer 21 is squeezed toward the electrode through the expansion effect of the expansion layer 23, thereby improving the sealing effect between the flexible sealing layer 21 and the electrode and reducing the generation of smoke overflow.

[0043] See also Figure 2 and Figure 4The self-inspection layer includes an outer cylinder 31. The inner ring diameter of the outer cylinder 31 is the same as the outer ring diameter of the outer sleeve 24. When in use, the outer cylinder 31 is just sleeved on the outer end of the outer sleeve 24. The inner wall of the outer cylinder 31 is fixedly connected with the upper sealing layer 32. A plurality of perforations are opened on the outer cylinder 31. The inner part of the perforations is slidably connected with an inspection strip 33. The inspection strip 33 is located on the lower side of the upper sealing layer 32. The distance from the lower end of the inspection strip 33 to the lower end of the outer cylinder 31 is the same as the height of the sealing layer, so that after the sealing layer and the self-inspection layer are installed, the inspection strip 33 is tightly fitted with the upper end of the sealing layer.

[0044] See also Figure 3 The visual inspection strip 33 includes an external display stick 3301 and a heat conductive block 3302. One end of the external display stick 3301 is fixedly connected to one end of the heat conductive block 3302, and the external display stick 3301 is located on the side close to the outside world. The outer surface of the external display stick 3301 is coated with a color coating, and the heat conductive block 3302 is made of heat conductive material.

[0045] Combination Figure 3 and Figure 6 , Figure 3 This is the initial state diagram after installation. Manually push the visual inspection strip 33 so that most of it is located inside the outer tube 31, and its outer end is close to the outer end of the outer tube 31. At this time, the heat conductive block 3302 is in contact with the flexible sealing layer 21. When smoke overflows between the flexible sealing layer 21 and the electrode, the smoke will gradually gather between the flexible sealing layer 21 and the upper sealing layer 32, causing the air pressure in this area to gradually increase. At the same time, the temperature of the heat conductive block 3302 rises due to the influence of the smoke. As the air pressure continues to increase, the smoke will push the visual inspection strip 33 to the outside, such as Figure 6 As shown, when the heat conductive block 3302 moves to a position where it is not in contact with the flexible sealing layer 21, at this time, on the one hand, the flue gas directly transfers the temperature to the heat conductive ring sheet 22, and on the other hand, the heat conductive block 3302 comes into contact with the outer sleeve 24, transferring its own high temperature to the outer sleeve 24, so that the heat conductive ring sheet 22 and the outer sleeve 24 heat the expansion layer 23 at the same time, causing the expansion layer 23 to expand due to the heat, thereby achieving a sealing effect on the flexible sealing layer 21 and the electrode.

[0046] In addition, as the inspection strip 33 moves toward the outside, its visible length outside the outer tube 31 increases, and its own color prompt can give the staff an obvious visual prompt, so that the staff can deal with the smoke overflow in time and reduce the pollution of smoke to the working environment.

[0047] Combination Figure 3 and Figure 4 A plurality of mounting holes are provided on the outer cylinder 31, and a bolt assembly 4 is connected between the mounting holes and the flange 1. The bolt assembly 4 includes bolts and nuts. The bolt assembly 4 realizes a fixed connection between the outer cylinder 31 and the flange 1, thereby realizing the fixation of 2.

[0048] Embodiment 2:

[0049] This embodiment adds the following structure based on the embodiment 1: Figure 8 and Fig.10 The self-inspection layer also includes a sealing ring 35, the outer end of the sealing ring 35 is fixedly connected to one end of a transparent flexible capsule 34, the other end of the transparent flexible capsule 34 is fixedly connected to the outer end of the outer tube 31, and the visual inspection strip 33 is located on the inner side of the transparent flexible capsule 34, and the upper end of the visual inspection strip 33 is provided with a gas release hole 301 (such as Fig. 9 As shown in FIG. 1 , a gas release tube 36 communicating with the inner side of the transparent flexible bag 34 is fixedly connected to the transparent flexible bag 34, and one end of the gas release tube 36 away from the transparent flexible bag 34 is connected to and communicated with the gas collecting device.

[0050] When installing the self-test layer, while the outer cylinder 31 is sleeved on the outside of the sealing layer, the sealing ring 35 is simultaneously sleeved on the outer end of the electrode, and a third seal is added to the electrode on the basis of the flexible sealing layer 21 and the upper sealing layer 32;

[0051] By adding the above-mentioned structure, when smoke overflow occurs and the expansion layer 23 has expanded due to heat, most of the inspection strip 33 moves to the outside of the outer tube 31 due to the continuous overflow of smoke. In order to reduce the probability of the inspection strip 33 falling out from the inside of the perforation, the smoke can enter the transparent flexible bag 34 along the release hole 301 through the setting of the release hole 301, and then be discharged and collected through the release pipe 36 for subsequent processing; the transparent flexible bag 34 provides a temporary storage area for the overflowing smoke, and does not affect the visual prompt function of the inspection strip 33. Even if the inspection strip 33 falls from the perforation due to smoke, the smoke is not easily released into the air environment, which provides another guarantee for the air environment and work safety.

[0052] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A special electrode sealing process, characterized in that: The following steps are involved: S1. Installation 1: First, tightly fit the sealing layer on the outer end of the electrode of the electric furnace to seal the connection between the electrode hole and the electrode; S2, Installation 2: The self-test layer is placed on the sealing layer and the outer side of the electrode, and is connected and fixed to the flange (1) at the upper end of the electric furnace cover; S3, smoke leakage self-inspection: When a gap appears between the sealing layer and the electrode, the smoke in the electric furnace overflows along the gap and gathers in the closed cavity formed by the sealing layer and the self-inspection layer. On the one hand, the self-inspection layer is partially convexed by increasing the pressure, so as to realize visual inspection; S4, Sealing: On the other hand, the smoke transfers heat to the self-testing layer, and the self-testing layer transfers heat to the periphery of the sealing layer by moving outward, causing the periphery of the sealing layer to expand from the outside to the inside, thereby enhancing the sealing between itself and the electrode and reducing the degree of smoke leakage; The sealing layer comprises an outer sleeve (24), the inner wall of the outer sleeve (24) is fixedly connected to a temperature-sensitive deformation layer, the inner wall of the temperature-sensitive deformation layer is fixedly connected to a plurality of vertically superimposed flexible sealing layers (21), the temperature-sensitive deformation layer comprises a heat-conducting ring sheet (22) and an expansion layer (23) distributed up and down, the heat-conducting ring sheet (22) and the outer sleeve (24) are both made of heat-conducting material, and the expansion layer (23) is made of heat-expanding material; The self-inspection layer comprises an outer cylinder (31), the inner diameter of the outer cylinder (31) being the same as the outer diameter of the outer sleeve (24), the inner wall of the outer cylinder (31) being fixedly connected to an upper sealing layer (32), the outer cylinder (31) being provided with a plurality of through holes, the interior of the through holes being slidably connected to an inspection strip (33), the inspection strip (33) being located at the lower side of the upper sealing layer (32).

2. A special electrode sealing process according to claim 1, characterized in that: The visual inspection strip (33) comprises an external display stick (3301) and a heat-conducting block (3302), one end of the external display stick (3301) is fixedly connected to one end of the heat-conducting block (3302), and the external display stick (3301) is located on a side close to the outside world.

3. A special electrode sealing process according to claim 2, characterized in that: The outer surface of the external display rod (3301) is coated with a colored coating, and the heat conducting block (3302) is made of a heat conducting material.

4. A special electrode sealing process according to claim 1, characterized in that: The outer cylinder (31) is provided with a plurality of mounting holes, and a bolt assembly (4) is connected between the mounting holes and the flange (1).

5. A special electrode sealing process according to claim 1, characterized in that: The self-inspection layer further comprises a sealing ring (35), the outer end of the sealing ring (35) being fixedly connected to one end of a transparent flexible capsule (34), the other end of the transparent flexible capsule (34) being fixedly connected to the outer end of the outer tube (31), the visual inspection strip (33) being located on the inner side of the transparent flexible capsule (34), and an air release hole (301) being provided at the upper end of the visual inspection strip (33).

6. A special electrode sealing process according to claim 5, characterized in that: The transparent flexible bag (34) is fixedly connected to a gas release tube (36) which is in communication with the inner side thereof; one end of the gas release tube (36) which is away from the transparent flexible bag (34) is connected to and in communication with a gas collecting device.

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