98 results about "Ceramic insulators" patented technology

The invention is suitable for the technical field of electrical equipment detection, and provides a ceramic insulator intelligent evaluation method based on spectral feature analysis, and the method comprises the steps: obtaining spectral data through 120 GHz high-frequency laser, synchronously collecting environment and electrical parameters, extracting 10-dimensional spectral features, and fusing the 10-dimensional spectral features into a multi-modal feature vector; training is carried out by using an integrated learning model fused by a random forest and XGBoost and an LSTM time sequence model, and a dynamic weight updating mechanism is combined to adapt to environmental changes; outputting aging grade probability distribution, aging trend prediction in the future 6 months and a risk value gt; and 3.0, early warning is triggered. According to the scheme, evaluation precision, dynamic adaptability and prediction capability are improved, and reliable support is provided for operation and maintenance of a power system.

The invention belongs to the technical field of ceramic insulator processing, and discloses a lightning protection ceramic insulator product processing glaze spraying device and method.The lightning protection ceramic insulator product processing glaze spraying device comprises a workbench, the top of the workbench is fixedly connected with a mechanical arm glaze sprayer, one end of the workbench is fixedly connected with a square box, the top of the square box is fixedly connected with a fixed box, and the lightning protection ceramic insulator product processing glaze spraying device further comprises a glaze spraying device, a glaze spraying processing mechanism and a cross sleeve rod drive a lifting disc and the ceramic insulator to rotate, a mechanical arm glaze spraying device can conveniently conduct all-dimensional glaze spraying work on the outer wall of the ceramic insulator, in the process that two flexible sleeve plates extrude an inner cavity of the ceramic insulator, it can be ensured that the ceramic insulator stably rotates, and the glaze spraying efficiency is improved. And the glaze spraying accuracy of the mechanical arm glaze sprayer on the ceramic insulator is improved. In general, when glaze spraying work is carried out on more ceramic insulators at the same time, the rotation of the multiple ceramic insulators can be more stable due to the dead weight of the multiple ceramic insulators, and glaze spraying of the mechanical arm glaze spraying device on the outer walls of the ceramic insulators is more accurate.

The invention relates to the technical field of power equipment state detection, in particular to an insulator pollution degree classification method based on a double-attention multi-scale enhancement network, which comprises the steps of preparing ceramic insulator samples of different pollution grades, collecting hyperspectral image data of the samples, constructing a double-attention multi-scale enhancement network framework model, and classifying the pollution degree of the ceramic insulator samples. The model comprises a double-branch spectrum enhancement module and a multi-scale spatial spectrum feature extraction module. A local area with a target pixel as the center is extracted from hyperspectral image data to serve as network input, spectrum related features are captured through a double-branch spectrum enhancement module, and multi-scale dirty area features and channel attention features are extracted and fused through a multi-scale spatial spectrum feature extraction module; and outputting a ceramic insulator pollution grade classification result by using global average pooling and a full connection layer. According to the method, high-precision pixel-level classification of the pollution degree of the ceramic insulator is realized, and the method is suitable for monitoring and evaluating the pollution state of the ceramic insulator of an actual power system.

The utility model relates to the field of insulators, in particular to a ceramic insulator for a high-low voltage power transmission line, which comprises an insulator and a chassis, the bottom of the insulator is provided with the chassis, the upper end face of the chassis is provided with through holes in a front-back symmetrical manner, the upper end face of the chassis is provided with a fixing groove, and the left end face in the fixing groove is rotatably provided with an adjusting lead screw through a bearing. Adjusting sliding blocks are installed on the outer side wall of the adjusting lead screw in a bilateral symmetry mode, a fixing plate is installed on the upper end face of each adjusting sliding block, a plurality of limiting frames are installed at the inner side end of each fixing plate from top to bottom, and a fixing screw rod is installed at the bottom of the base plate. And the limiting frame is used for clamping and fixing the winding part, so that the winding and mounting stability is ensured, and the phenomenon that the binding rope is easy to break and fall off after being used for a long time during binding rope fixing is avoided.

The utility model relates to the technical field of medical disinfection equipment, in particular to a plasma electric field generator with a double-layer protection function, which comprises a reaction cavity frame, four preformed holes which are vertically symmetrical are formed in the left part and the right part of the reaction cavity frame and are used for circuit connection, and 11 dust collection plates are connected between the front part and the rear part of the reaction cavity frame. 10 groups of corona electrodes which are symmetrical up and down are connected between the front part and the rear part of the reaction cavity frame, each group comprises two pieces, and the corona electrodes on the upper layer and the lower layer are arranged at equal intervals. The utility model provides a gradient double-layer protection structure, through differentiated material combination and space reconstruction, while the compactness of equipment is maintained, the insulation effect of a ceramic insulator is realized, the phenomena of current leakage and short circuit are effectively prevented, a physical isolation space reserved between layers can effectively block a breakdown arc diffusion path, and the service life of the equipment is prolonged. In addition, the shell forms final safety redundancy, and continuous and safe operation of equipment is ensured.

The application discloses a flash connecting method of ceramic insulators, which comprises the following steps: abutting the joint surfaces of the ceramic insulators coated with conductive colloid; abutting the conductive rings against the joint surfaces of the ceramic insulators; applying super high voltage or super high current to the conductive rings to force the conductive colloid to conduct electricity and cause the flash connection of the ceramic insulators; cutting off the power supply; and removing the conductive rings after the ceramic insulators are cooled to room temperature. By abutting the conductive rings against the joint surfaces of the two insulators, the super high voltage or super high current of the super capacitor is used to heat the conductive colloid on the joint surfaces of the insulators, so that the mass transfer effect of the insulators on the two sides is caused, and the instant flash connection is realized. The connecting temperature is significantly reduced, and the connecting time is shortened. The two ceramic insulators can be connected in seconds by using the method, the energy consumption can be reduced by using the super capacitor, and the application can be widely applied to the field of super large size power porcelain.

The invention relates to the technical field of ceramic insulator production, and particularly discloses a ceramic insulator production mud blank shaping device which comprises a machining table, a rotary storage barrel, an internal knife rest mounting table, an internal fettling knife assembly, a driving reset assembly, a supporting table structure and an external fettling knife assembly, and a bearing is fixedly mounted in the middle of one side of the machining table; according to the mud blank shaping device for ceramic insulator production, through cooperation of the rotary storage barrel, the internal fettling cutter assembly, the supporting table structure, the external fettling cutter assembly and the drilling structure, it is guaranteed that the exterior and the interior of a mud blank can be fettled and drilled at the same time while it is guaranteed that the mud blank can rotate smoothly; therefore, secondary fettling operation does not need to be carried out after the green body is pressed and formed, the operation that the green body is turned over and the exterior of the green body is fettled after the fettling operation on the interior of the green body is completed is avoided, then the time needed by procedure switching is avoided, and the fettling efficiency is improved.

The invention discloses a large-size electronic packaging shell and a manufacturing method thereof, and belongs to the technical field of electronic packaging. The packaging shell comprises a metal shell body and a metal cover body, wherein the metal shell body is made of 4J29 kovar alloy or carbon structural steel with the carbon content ranging from 0.08% to 1.3%; the sealing insulator is embedded in the bottom of the metal shell and comprises a hollow cylindrical ceramic body, and a tungsten composite metal layer and a metal coating are sequentially formed on the inner surface and the outer surface of the ceramic body from inside to outside; the ceramic body is made of aluminum nitride or silicon nitride; and the leading pin is inserted into the ceramic insulator, and the material of the leading pin is beryllium bronze. According to the packaging shell, the problems of stress deformation of the leading-out end and damage to the sealing area caused by thermal mismatch are avoided, so that the device failure caused by the stress deformation is avoided, and the sealing performance and long-term reliability of the device are ensured.

The application belongs to the technical field of insulator assembly and manufacturing, and particularly relates to a ceramic insulator automatic pin insertion machine and a working method thereof. The space between two adjacent insulators is limited, which leads to inconvenient pin insertion. The two insulators need to be spread apart by an assembler during pin insertion, which affects the pin insertion efficiency. Meanwhile, the insufficient operation space may cause damage to the insulators during assembly. The following scheme is proposed, which comprises a pin insertion base provided with two installation side plates. The ceramic insulator automatic pin insertion machine and the working method thereof have the effect of improving the pin insertion assembly efficiency of the ceramic insulator string. During the pin insertion connection of the ceramic insulator, the device can spread one of the adjacent insulators to one side to increase the operation space during pin insertion. Meanwhile, the device does not need to be assisted by an assembler, which increases the use effect of the device. Moreover, the increase of the operation space can also avoid damage to the insulators during assembly.

The utility model relates to the technical field of insulators, and provides an assembled electric porcelain insulator, which comprises a plurality of groups of mutually matched ceramic insulators and connecting rods, the connecting rods are arranged at the lower ends of the ceramic insulators, the bottom ends of the connecting rods are fixedly connected with chucks, the top ends of the ceramic insulators are internally provided with mounting cavities, and the mounting cavities are fixedly connected with the chucks. A clamping cavity is formed in the middle of the mounting cavity, three evenly-distributed sliding grooves are formed in the periphery of the mounting cavity, sliding clamping plates are slidably connected into the sliding grooves, sliding pins are fixedly connected to the rear ends of the sliding clamping plates, a rotating disc is rotatably connected to the top end of the mounting cavity, and arc-shaped guide grooves are formed in the positions, corresponding to the sliding pins, of the rotating disc. The sliding pins are slidably connected into the arc-shaped guide grooves corresponding to the sliding pins. According to the utility model, the operation is simple and fast during connection, installation and disassembly, and the installation time and labor cost can be reduced.

The invention discloses a high-reliability metal shell for a gyroscope, which is characterized by comprising a metal shell substrate made of iron-nickel alloy; the ceramic insulator is fixedly arranged in the through hole of the metal shell base body; the metal lead penetrates through the ceramic insulator and is electrically isolated from the ceramic insulator; wherein a plurality of adaptive structures for mounting chips are arranged in the metal shell base body, and flange holes for assembling and positioning are formed in the outer part of the metal shell base body.

An internally grounded filter feedthrough having a filter capacitor connected to a feedthrough is described. The feedthrough comprises an insulator having an active conductive pathway extending to its device and body fluid sides, and a ground conductive pathway extending part-way through the insulator thickness from the insulator device side. An undercut extending into the insulator sidewall communicates with the ground conductive pathway but does not extend to the insulator device or body fluid sides or to the active conductive pathway. A braze seals the insulator sidewall to the ferrule and extends into the undercut so that the braze contacts the ground conductive pathway. That way, the braze provides a ground electrical path from a capacitor ground via to the ground conductive pathway in the insulator connected to the braze sealed to the ferrule.

The present disclosure relates to a pod propulsion unit. A pod propulsion unit 1 is proposed comprising: a housing (2); a support arm (3); a propeller shaft (5) rotatably supported within the housing by at least a first bearing arrangement (6) having a first bearing housing (7); a first fastening arrangement (11) for fastening the first bearing housing (7) to the housing (2). The first bearing housing (7) and the housing (2) are spaced apart from each other by a first electrically insulating arrangement (13) arranged between the first bearing housing (7) and the housing (2) and configured to electrically insulate the first bearing housing (7) from the housing (2). The first electrically insulating arrangement (13) comprises a first ceramic insulator (42) and the first ceramic insulator (42) contacts the first bearing housing (7) and the housing (2) so as to space the first bearing housing (7) and the housing (2) apart from each other.

The utility model relates to the technical field of polishing equipment, in particular to an electroceramic insulator surface polishing device which comprises a replaceable polishing head used for polishing the surface of an electroceramic insulator and a handheld rod, a polishing motor is embedded in the center of one end of the handheld rod, and a storage battery providing electric energy for the polishing motor is installed in the handheld rod. The replaceable polishing head is matched with the positioning ring sleeves at the two ends and the mounting screw holes and the mounting bolts on the inserting shafts, so that the polishing head can be conveniently mounted and dismounted, and polishing heads of different specifications or abraded polishing heads can be conveniently replaced; a polishing motor and a storage battery are embedded in a handheld rod, so that the whole device is convenient to hold and operate and has independent electric energy supply, and an external power supply is not needed; the rotating operation of the polishing head is conveniently controlled through the control switch; and the output end of the polishing motor is connected with the rotating shaft and then connected with the inserting shaft, finally, the replaceable polishing head is driven to rotate, and efficient polishing operation on the surface of the electric porcelain insulator is achieved.

The application discloses a barium-based rare earth synergistic type ultra-high insulation alkali-free glaze composition for spark plugs and a preparation method and application thereof, and belongs to the technical field of spark plug manufacturing. In order to solve the problem that the high-temperature insulation performance of the glaze of a spark plug is insufficient due to ion migration in the prior art, the application provides an alkali-free (containing no monovalent metal ion), low calcium and magnesium, high barium, rare earth and fluoride containing ultra-high insulation glaze composition for the surface of a ceramic insulator of a spark plug, and a preparation method and glazing and sintering process of the glaze. The application is a new type of alkali-free glaze taking high content BaO as an insulation core, B2O3 as a low-temperature fluxing main body and rare earth oxides as an anti-crystallization and performance enhancer, and realizes the unification of ultra-high high-temperature insulation performance, low-temperature sintering and a wide process window.

This invention discloses a non-destructive testing device for the electrical performance of tubular and shell assemblies, belonging to the technical field of electrical performance testing for tubular and shell assemblies. The device includes a button-type testing module and a PCB (Printed Circuit Board). The button-type testing module is used to achieve a non-destructive, solderless electrical connection between the PCB and the tubular and shell assembly. The PCB is provided with pads for testing the electrical performance of the tubular and shell assembly. By achieving a non-destructive, solderless electrical connection between the PCB and the tubular and shell assembly through the button-type testing module, compared to the existing technology of welding the two ends of a wire to the ceramic insulator and ceramic substrate of a ceramic insulator assembly to achieve an electrical connection between the ceramic insulator and the ceramic substrate, the wire and welding process are eliminated, achieving non-destructive electrical performance testing of the tubular and shell assembly and significantly improving the testing efficiency. This solves the problems of high welding difficulty, difficult wire routing, non-non-destructive testing, and low electrical performance testing efficiency in existing technologies.

The utility model discloses a relay with high safety. The relay comprises a relay main body, a shell, a base and a stable structure, the relay main body is sleeved with a shell, the top is provided with a ceramic insulator, a coil and a contact, and the bottom is provided with a base; longitudinal slots are formed in the upper side surface of the base for mounting and positioning; the stabilizing structure comprises a supporting rod, the bottom of the supporting rod penetrates through the base and is provided with a supporting plate, the supporting rod is driven to move longitudinally through a threaded rotating rod, and jacking and fixing of the relay body are achieved in cooperation with the clamping inserting groove. A fixed block and a movable cavity are arranged on the upper side of the base, a limiting sliding groove is formed in the cavity, and a limiting sliding block is arranged at the top of the supporting rod to ensure stable movement. The bottom side of the base is provided with a placing groove convenient to disassemble. The relay is fixed through a mechanical structure, and compared with a traditional mode, the relay is higher in stability, easy to assemble and disassemble, free of complex tools and suitable for severe environments, safe operation of the relay is guaranteed, and maintenance cost is reduced.

The application belongs to the technical field of insulator processing, and particularly relates to a ceramic insulator, a processing system and a processing method thereof. The ceramic insulator processing system comprises a processing table, two clamping seats are slidably connected to the processing table, a clamping plate is rotatably connected to each clamping seat, a placing groove is arranged on the lower side of the processing table, two sliding seats are slidably connected to the processing table, a transverse seat is slidably connected to each sliding seat, wiping cotton is arranged on each transverse seat, a first compression spring is fixedly connected between each sliding seat and each transverse seat, a filter plate is detachably connected to the lower side of the processing table through bolts, an air suction machine is fixedly connected to the lower side of the filter plate, and an openable and closable shell is arranged on the outer side of the processing table. The openable and closable shell can wrap the processing table, and the device can collect the debris and residues remaining on the ceramic insulator during the cleaning process after polishing, so as to facilitate the recycling of subsequent materials.

The application discloses a porous nano ceramic reinforcing body, a light-weight nano composite ceramic insulator and a preparation method thereof. 2‑x Cu x P2O7, and a multi-stage pore-forming agent and silane coupling agent interface modification technology is used to construct a three-level pore structure with macroscopic pores, microscopic pores and nanopores. The reinforcing body is prepared through an optimized gel injection molding and gradient sintering process, high strength under high porosity is achieved, and the overall material has near-zero thermal expansion characteristics by using the negative thermal expansion effect. The size instability and internal thermal stress caused by the sharp change of temperature are solved, and the long-term reliable operation of the insulator under extreme climate is laid a foundation.

The invention discloses an energy storage structure and method of a vacuum circuit breaker, and relates to the technical field of vacuum circuit breakers, the energy storage structure comprises a circuit breaker shell, ceramic insulators are fixedly installed on the upper surface of the circuit breaker shell at equal intervals, and the energy storage structure further comprises an energy storage assembly arranged in the circuit breaker shell; the energy storage assembly comprises a positioning piece fixedly connected to the outer surface of one side of the circuit breaker shell; through the arrangement of the energy storage main shaft, the energy storage spring, the rotating gear, the ratchet wheel, the tooth block and the connecting spring, the energy storage operation of the vacuum circuit breaker can be rapidly completed, and when the vacuum circuit breaker is installed at the high position of a building, the energy storage operation of the vacuum circuit breaker can be completed through a simple tool. According to traditional manual energy storage, people need to climb to the position near equipment or even operate in a suspended mode, the danger of falling or slipping exists, the structure allows long-distance control through a long-handle lever, an extension rod and other simple tools, the operator does not need to directly make contact with a high-voltage component or is located at the dangerous position, and the personal injury probability is greatly reduced.

The invention provides a ceramic insulator and a preparation method thereof, and belongs to the technical field of power equipment. The insulator comprises a core layer and a shell layer, wherein the core layer comprises the following components in percentage by mass: 70%-80% of aluminum oxide, 15%-25% of yttrium-stabilized zirconium oxide, 2%-5% of cerium oxide and 0.5%-1% of yttrium oxide. The shell layer comprises the following components in percentage by mass: 90%-95% of aluminum oxide, 1%-2% of magnesium oxide, 1%-3% of silicon oxide and 0.5%-1% of boric oxide. The ceramic insulator provided by the invention adopts a core-shell structure design, aluminum oxide in the core layer provides a relatively high mechanical strength basis, and yttrium-stabilized zirconium oxide is used as a toughening phase, so that the toughness of the insulator can be effectively improved, and the risk of brittle fracture is reduced. The high content of alumina in the shell layer further enhances the surface hardness and wear resistance of the insulator.

The invention relates to the technical field of ceramics, in particular to a preparation method of a high-strength ceramic insulator. The preparation method comprises the following steps: carrying out spark plasma ball milling on corundum, tantalum fluoride powder and niobium fluoride powder to prepare modified corundum powder; mixing and ball-milling the modified corundum powder with feldspar, titanium oxide, wollastonite, magnesian clay and the like to prepare pug; and carrying out filter pressing, aging, forming and sintering to prepare the high-strength ceramic insulator. The niobium fluoride powder and the tantalum fluoride powder are introduced, and the spark plasma ball milling technology is adopted, so that the compactness, the volume density and the microstructure uniformity of the ceramic are remarkably improved, the porosity and the water absorption rate are reduced, and the bending strength and the pollution flashover resistance are improved.

According to the assembled ceramic insulator, each adjusting shaft is sleeved with a plurality of adjusting sliding blocks capable of sliding along the adjusting shaft in the extending direction of the adjusting shaft, and each adjusting sliding block is provided with two adjusting assemblies capable of being synchronously driven; each adjusting assembly comprises three adjusting cylinders and a ceramic umbrella sheet, the three adjusting cylinders are arranged in the radial direction of the first insulating porcelain column, one ends of the three adjusting cylinders are connected in a sleeving mode, the ceramic umbrella sheet is connected to the tail end adjusting cylinder, and the three adjusting cylinders are configured to be capable of being driven layer by layer so as to drive the ceramic umbrella sheet to move in the radial direction; the wire holder is provided with a first end face which can block one end of the first insulating knob insulator and can be connected with the other end of each adjusting shaft and a second end face which is deviated from the first end face, and the second end face is provided with a wire connection assembly used for being connected with an external cable. The problems that an existing ceramic insulator only depends on winding installation and manual adjustment modes, accurate assembly and adjustment are difficult to achieve, the overall stability and connection reliability are affected, and the environment adaptability is poor are solved.

The application provides a ceramic insulator and a preparation method thereof, and belongs to the technical field of power equipment. The insulator comprises a core layer and a shell layer. The core layer comprises the following components in percentage by mass: 70-80% of alumina, 15-25% of yttrium stabilized zirconia, 2-5% of cerium oxide, and 0.5-1% of yttrium oxide. The shell layer comprises the following components in percentage by mass: 90-95% of alumina, 1-2% of magnesium oxide, 1-3% of silicon oxide, and 0.5-1% of boron oxide. The ceramic insulator of the application adopts a core-shell structure design. The alumina in the core layer provides a high mechanical strength basis, and the yttrium stabilized zirconia as a toughening phase can effectively improve the toughness of the insulator and reduce the risk of brittle fracture. The high content of alumina in the shell layer further enhances the surface hardness and wear resistance of the insulator.

The invention discloses a power insulator with a protection structure at the edge, and the power insulator comprises a plurality of groups of ceramic insulators, the outer end of each ceramic insulator is provided with a protection assembly, and the center of each ceramic insulator is provided with a slot. An upper resin rod and a lower resin rod are respectively inserted into the slots at the two ends of the plurality of groups of ceramic insulators, a middle resin rod is inserted into the slot between the upper resin rod and the lower resin rod, fixed seats are fixedly mounted at the separated ends of the upper resin rod and the lower resin rod, and a fastening assembly is arranged on one side of each fixed seat. The flashover phenomenon of discharge breakdown occurs between the adjacent ceramic insulators, the protection assembly can effectively protect the edges of the ceramic insulators, damage caused by overlarge stress at the edges is avoided, the sunken sealing grooves and the umbrella-shaped faces of the ceramic insulators form transitional umbrella skirt-shaped cambered surfaces after being matched with the upper sheath, and therefore the sealing effect of the ceramic insulators is improved. Therefore, water drops cannot gather on the surface and can quickly flow away to reduce the conductivity, and the safety is improved.

The invention discloses a metallization printing method for the side surface of an insulator for an inlaid tube shell. The metallization printing method comprises the following steps: (A) manufacturing a ceramic insulator green ceramic chip by using a green ceramic tape and metallization slurry according to a multi-layer ceramic production process; (B) pasting a thermosensitive film on the back surface of a green ceramic tape of the green ceramic chip of the ceramic insulator, and cutting a non-side printing surface; (C) cutting the side printing surface to obtain a strip-shaped raw ceramic piece of the ceramic insulator pasted with the thermosensitive film; (D) arranging and fixing the strip-shaped raw ceramic pieces of the ceramic insulator on the substrate, keeping the side printing surfaces upward, and carrying out full printing; and (E) baking the strip-shaped raw ceramic piece of the ceramic insulator to obtain the naturally-falling side-metallized ceramic insulator. The production efficiency can be improved, the steps are simplified, the possibility of appearance defects caused in the manual operation process is reduced, and the quality is improved; tedious manual operation is avoided, and the cost of customizing a mold is saved; the defects of the prior art are overcome, and mass production of the ceramic insulator is facilitated.

The invention discloses a ceramic vacuum insulator with a three-dimensional microstructure on the surface and a preparation method of the ceramic vacuum insulator, and solves the technical problems that an existing modified ceramic insulator cannot be used in a high-temperature environment, and an existing vacuum surface flashover voltage boosting method is limited in application range, high in equipment requirement, complex in operation and the like. The ceramic vacuum insulator comprises a ceramic vacuum insulator base body and a three-dimensional microstructure coating the surface of the ceramic vacuum insulator base body, the three-dimensional microstructure is formed by interweaving micron wires in a three-dimensional space on the surface of the ceramic vacuum insulator substrate; and the micro-wire adopts a polymethylsiloxane micro-wire of which the surface is subjected to high-temperature ceramic treatment. The three-dimensional micro-structure can improve the vacuum surface voltage withstanding level of the insulator, and after high-temperature ceramization, the insulator with the three-dimensional micro-wire structure on the surface can be applied to the high-temperature environment of 800 DEG C or below and has the high-temperature insulation characteristic, so that the application range of the ceramic vacuum insulator is widened.

The invention relates to the field of ceramic insulators for high and low voltage power transmission lines, in particular to a ceramic insulator for a high and low voltage power transmission line and a manufacturing process of the ceramic insulator. A ceramic insulator of a high-low voltage power transmission line comprises a fixing frame, a clamping plate is detachably connected to the fixing frame, an umbrella-shaped ceramic piece is arranged below the fixing frame, two sliding rails are rotatably connected to the lower portion of the fixing frame, each sliding rail is slidably connected with a chuck, and a cleaning mechanism is arranged between the two chucks. The cleaning mechanism comprises two lifting tables, each lifting table is detachably connected to the corresponding chuck, the two lifting tables are rotationally connected with a second rotating ring, the second rotating ring is fixedly connected with two symmetrically-arranged supports, and each support is rotationally connected with a cleaning rod. The invention provides an insulator which can be self-cleaned on the premise that the insulation effect is not interfered.

The invention relates to a method for manufacturing a patterned groove in the surface of a ceramic insulator and the ceramic insulator. According to the method, in the wet blank forming stage of the ceramic insulator, a prefabricated flexible mold is used for imprinting, and the patterned groove is integrally formed in the surface of a blank body; according to the method, on the premise that the continuity of the glaze layer and the integrity of the base body are not damaged, stable manufacturing of the patterned groove is achieved, the method can be highly compatible with follow-up glaze dipping and sintering procedures, and the overall performance and the service life of the insulator are guaranteed. Meanwhile, the method has good replicability and large-scale application potential, and can provide solid process support for popularization of the embedded RTV coating structure in an actual power grid. The invention provides a brand new way for engineering application of the embedded coating structure on the ceramic insulator.

A method for implementing plasma injection in the middle of a blast furnace involves evenly installing several plasma torches on the upper part of the furnace waist or the lower part of the furnace body around the circumference. The plasma torches inject coke oven gas, hydrogen, or other reducing gases into the blast furnace. Utilizing their adjustability, the method effectively controls the edge temperature within the blast furnace and enhances reduction, improving edge permeability and promoting smooth blast furnace operation. It does not aim to completely replace all reduction within the blast furnace. The provided plasma torches consist of an electrode head, an arc-igniting ion head, an extension sleeve, electrode needles, a ceramic insulator, isolation ribs, a reducing gas inlet, sealing packing, and a pressure cap. Each torch has a power of 50kW to 80kW, an outer diameter of 60mm±10mm, and a length of 800mm±100mm. Each plasma torch is equipped with an independent box-type control cabinet, enabling individual power supply and control. The reducing gas injection rate is set to 10m³ to 50m³ per ton of iron. 3 The temperature injected into the furnace is 1100℃±100℃. It has the functions of single-branch gas supply, single-branch pressure and flow measurement and instantaneous display, and single-branch flow adjustment and control.