52 results about "Insulative paint" patented technology

The invention belongs to the technical field of epoxy resin coatings, and particularly relates to an epoxy resin insulating coating with high toughness and high ultraviolet aging resistance and a preparation method thereof. The epoxy resin insulating paint is composed of 2-5 g of a TiO2 (at) PDA (at) BTA nanometer material, 100 g of epoxy resin and 10-60 g of a curing agent, wherein the TiO2 (at) PDA (at) BTA nanometer material has a core-shell structure. The epoxy resin insulating paint is constructed on the basis of the multi-layer core-shell structure functional nanoparticles, so that the toughness of the material is improved, and the ultraviolet aging resistance of the paint is also improved.

The application relates to the technical field of paint, and particularly discloses a water-based insulating paint and a preparation method; the water-based insulating paint comprises components A and B, the mass ratio of the components A and B is (7-9):1, the component A comprises the following raw materials in parts by weight: deionized water 100-150 parts, bentonite 3-8 parts, fumed silica 3-8 parts, titanium white 40-80 parts, barium sulfate 90-110 parts, mica powder 40-60 parts, zinc phosphate 60-80 parts, feldspar powder 40-60 parts, epoxy emulsion 400-500 parts, base material wetting agent 3-5 parts and dispersant 30-80 parts; the component B comprises the following raw materials in parts by weight: curing agent 40-60 parts and solvent 40-60 parts; the dispersant comprises a sulfonate dispersant and a polycarboxylate dispersant; the application promotes the insulating performance of the paint through the synergistic effect of various components, reduces the agglomeration of particles in the paint system, and improves the dispersing performance of the paint.

The invention relates to a chromium-free environment-friendly insulating coating paint and a thin electrical steel strip. The chromium-free environment-friendly insulating coating comprises the following components in percentage by mass: 15%-23% of phosphate; 8%-13% of epoxy resin emulsion; 0.3%-1.2% of boric acid; 0.4%-4.7% of a metal inorganic salt additive; 0.3%-1.1% of a metal hydroxide; 0.1%-0.44% of a coupling agent; 7%-26% of hollow ceramic microsphere particles; and 30.56% to 68.9% of deionized water. The metal inorganic salt additive is at least one of barium oxalate, strontium sulfate and aluminum silicate. The phenomena that solid components in the coating sink to the bottom and water is separated from the surface can be avoided, the compactness of the coating is improved, the wear resistance and corrosion resistance of the coating are improved, the resistivity of the insulating coating can be remarkably improved through the nanoscale hollow ceramic microsphere particles, the loss of electrical steel is reduced, the adhesiveness of the coating is enhanced, and cracks of the coating are reduced.

The utility model relates to the technical field of insulating coating production, in particular to an insulating coating production grinding device which comprises a base, a first support, a second support and a third support are sequentially arranged at the top of the base from left to right, a smashing part is arranged between the first support and the third support and comprises a smashing box, and a discharging bin is arranged at the bottom of the smashing box. A first material guiding pipe is arranged at the bottom end of the discharging bin, a discharging opening is formed in the bottom of the first material guiding pipe, a screen is arranged in the discharging opening, a material guiding hopper is arranged at the position, located at the discharging opening, of the bottom of the first material guiding pipe, a grinding piece is arranged between the first support and the second support, and a material returning piece is arranged at the top of the third support in a penetrating mode. According to the grinding device for insulating paint production, the crushing part is arranged, materials are preliminarily crushed through the crushing rollers in the crushing box, so that the materials have small particle sizes before entering the grinding stage, the time needed by the grinding link is effectively shortened through the design, and the overall grinding efficiency is improved.

The invention relates to the technical field of reversible color-changing coatings, in particular to a reversible color-changing coating for temperature self-detection as well as a preparation method and application of the reversible color-changing coating. The reversible color-changing coating comprises the following raw materials: a reversible color-changing material, a room-temperature curing insulating coating, a heat-conducting filler and a dispersing agent, the reversible color-changing material comprises a long-chain alkyl alcohol solvent, a leuco agent and a gallic acid alkanol ester color developing agent. When the reversible color-changing coating is used, the reversible color-changing coating can be obtained only by coating the lap joint surface of the transformer bushing and curing at room temperature. The reversible color-changing coating disclosed by the invention is good in insulating property, excellent in heat-conducting property, convenient to use and remarkable in color change, and low-temperature light color and high-temperature dark color can be used for temperature self-detection of the lap joint surface of the transformer bushing of the transformer substation, so that inspection of inspection personnel is facilitated.

An amorphous magnetic core protective shell surface insulation treatment device for a transformer belongs to the field of amorphous magnetic core production and comprises a treatment box, and a feeding mechanism, a paint dipping mechanism and a drying mechanism which are arranged in the treatment box. The feeding mechanism comprises a conveying mesh belt, the paint dipping mechanism is arranged on the conveying mesh belt and comprises a paint dipping pool and a side edge pressing wheel, the paint dipping pool is arranged in the treatment box, and the side edge pressing wheel is arranged on the inner side of the paint dipping pool; the drying mechanism is arranged at the discharging end of the paint dipping pool. The paint dipping pool is arranged in the treatment box body, insulating paint is injected into the paint dipping pool, a magnetic core is gradually fed into the paint dipping pool through the conveying net belt, and the conveying net belt is pressed into the bottom of the paint dipping pool through the side edge pressing wheels after entering the paint dipping pool, so that the magnetic core is completely submerged by the insulating paint, and the surface of the magnetic core is completely covered with the insulating paint; and then, the magnetic core coated with the insulating paint is gradually dried from the bottom of the drying machine through the transmission mesh belt, so that the insulating layer is more uniform.

The embodiment of the invention provides an unmanned aerial vehicle self-adaptive telegraph pole insulating paint spraying method and device, and the method comprises the steps that in the spraying operation process, operation environment parameters are obtained in real time, the operation environment parameters are input into a pre-trained reinforcement learning model, and the operation environment parameters comprise the wind speed, the paint temperature and the telegraph pole surface coating state; the reinforcement learning model generates and outputs a pumping pressure adjusting instruction and a flight control instruction in real time according to the input environmental parameters; and according to the pumping pressure adjusting instruction and the flight control instruction, a spraying mechanism is synchronously controlled to conduct atomization spraying at the target pumping pressure, and the unmanned aerial vehicle is controlled to fly along the spraying object at the target flight speed till the thickness of the coating on the surface of the telegraph pole meets the target thickness. The stability and the consistency of the spraying quality are improved, and the coating thickness error is controlled within a preset range; the coating waste caused by environmental fluctuation is greatly reduced, the working efficiency is improved, manual high-altitude operation is avoided, and corresponding safety risks are thoroughly eliminated.

The invention discloses an ultraviolet shielding insulating polyurea composite material as well as a preparation method and application thereof, and relates to the field of insulating paint. The polyurea composite material comprises the following components: aromatic isocyanate, aromatic diamine, illite-loaded semiconductor metal oxide, a polymerization inhibitor and a flatting agent, the molar ratio of illite to the semiconductor metal oxide in the illite-loaded semiconductor metal oxide is (4-10): 1. The illite-loaded semiconductor metal oxide is uniformly dispersed in a polyurea system for modification, the weather resistance of the material is improved by utilizing the excellent ultraviolet aging resistance of the illite, the hydrophobicity of the surface of the material is synchronously improved, the risk of wet flashover caused by accumulation of water drops on the surface of the polyurea material is avoided, and the service life of the material is prolonged. When applied to an insulating coating material of a power transmission line, the insulating coating material can meet long-time stable operation in outdoor high-ultraviolet, high-temperature and high-humidity environments, and has relatively high thermal conductivity and breakdown strength performance.

The utility model relates to the technical field of insulating paint production, concretely for high accuracy batching device for insulating paint production, including batching bucket, be provided with cavity in the batching bucket, the batching bucket bottom wall is provided with the discharge pipe of valve, be provided with mixing subassembly in the cavity, one end of cavity upside is provided with the inlet, be provided with hopper in the inlet, hopper lower extreme is provided with auxiliary assembly, the periphery of hopper is provided with the symmetrical support rod, the weighing assembly is provided with on support rod side wall upper end, the support rod upper side wall is provided with the storage bucket with inlet, the automatic discharge assembly is provided to the storage bucket bottom wall, be provided with liquid level sensor in the storage bucket, the mixing subassembly includes rotating motor, rotating rod and rotating leaf, the auxiliary assembly includes spacing rod, spacing motor and spacing board, the weighing assembly includes auxiliary rod, control motor and weighing bucket, ensure the formula precision of every batch insulating paint.

The utility model discloses a bearing chamber insulation shrinkage fit device of a new energy machine shell end cover. The bearing chamber insulation shrinkage fit device comprises a first rack, a second rack, a heating machine, a heating coil, a rotary supporting plate, a lifting device, a supporting plate and a rotating piece. The rotary tray is connected to the top face of the first rack, the heating machine is connected to the top face of the rotary tray, the heating coil is connected to the output end of the heating machine, the second rack is arranged below the heating coil, the lifting device is connected to the bottom face of a top plate of the second rack, a telescopic rod of the lifting device vertically penetrates through the top face of the second rack, and the tail end of the telescopic rod is connected with a supporting plate. The rotating piece is connected to the center of the top face of the supporting plate. Compared with the prior art, a product placed on the rotating piece is controlled to ascend and descend through the lifting device, the heating coil heats a bearing chamber of an inner ring of the product, an operator rotates the product to enable the inner ring to be evenly heated and expanded, then the insert with the outer side wall coated with ECTFE insulating paint is installed in the insert, and the inner ring shrinks after being cooled. And an insulating layer is formed between the insert and the product and is in interference fit.

The utility model relates to the technical field of silicon steel production, and discloses an oriented silicon steel production line which comprises a working table and transmission rollers installed at the two ends of an inner cavity of the working table, two smearing rollers are installed in the middle of an inner cavity of each transmission roller, and sliding grooves are formed in the two sides, close to the smearing rollers, of the inner cavity of the working table. When the smearing roller starts to rotate at a constant speed, the insulating paint in the storage box slowly flows out of the smearing opening under the action of gravity, the insulating paint flowing out of the smearing opening can be attached to the smearing roller rotating continuously, and the paint is evenly smeared on the surfaces of the upper side and the lower side of the silicon steel sheet along with rotation of the smearing roller. After the smearing roller completes a whole circle of smearing process, residual insulating paint on the smearing roller is scraped off through contact between the shovel plate and the surface of the smearing roller, the scraped-off material enters the groove and slides into the discharging plate, and the situation that the paint is attached to the surface of the smearing roller to affect next-time smearing when the coating roller is not used is avoided.

The invention relates to the technical field of coatings, in particular to an anti-aging insulating coating and a preparation method thereof.The insulating coating is prepared from, by weight, 15-25 parts of hydroxyl-terminated polysiloxane, 2-5 parts of diluent, 0.5-3 parts of cross-linking agent, 30-35 parts of filler, 0.01-0.03 part of catalyst and 42-47 parts of solvent. The insulating paint prepared by the invention has the advantages of higher mechanical strength, favorable aging resistance and favorable insulating property.

The invention discloses a water-based low-VOC environment-friendly black insulating coating and a coating method thereof on the surface of an aluminum foil, belongs to the technical field of environment-friendly coatings, and is suitable for insulation protection in the fields of electronic packaging, flexible circuit boards and the like. The paint has the characteristics of low volatile organic compounds (VOC), high insulativity, excellent adhesive force and rapid low-temperature curing: 1, zero benzene residue and low VOC: water is completely used as a solvent, benzene solvents are not detected, and the VOC content is less than or equal to 50g / L (the content of a traditional solvent type paint is greater than 500g / L); 2, high insulating property: through the synergistic effect of nano aluminum oxide and boron nitride, the dielectric strength of the coating is greater than or equal to 35kV / mm (only 15kV / mm-20kV / mm); and 3, low-temperature curing and high adhesive force: an aziridine cross-linking agent is added, curing is performed at 80-100 DEG C for 3 minutes, the adhesive force is greater than or equal to 98% (a cross-cut method), and the base material does not deform.

The invention relates to the technical field of high polymer materials, and discloses an environment-friendly weather-resistant polyurea bird damage prevention insulating paint based on transgenic soybean oil polyamine, and a preparation method and a coating of the environment-friendly weather-resistant polyurea bird damage prevention insulating paint. The coating contains a component A and a component B, wherein the raw materials for preparing the component A comprise aliphatic isocyanate, a chain extender, an organic bismuth catalyst and a diluent; the component B is prepared from the following raw materials: transgenic soybean oil-based polyamine, a nano modifier, a thixotropic agent, an anti-aging agent and water. Through bio-based raw material innovation, weather-proof structure design, an insulation enhancement technology and a rapid curing system, the finally obtained coating not only has a good insulation effect, but also has a good bird damage prevention effect.

The application provides a moisture-curing quick-drying type HFG weather-resistant insulating paint and a preparation method and application thereof, and relates to the technical field of paint. The paint comprises the following raw materials: 40-50% end alkoxy high-branched fluorosilicon resin, 0.5-1.0% N-(beta-aminoethyl)-gamma-aminopropyl trimethoxysilane, 3-5% thermochromic microcapsules, 0.02-0.05% graphene, 0.5-1.5% fluorinated boron nitride nanosheet, 5-10% hollow glass microbead, 3-6% fluorinated spherical SiO2, 0.1-0.3% fluorocarbon surfactant, 2-3% defoaming agent, 2-3% leveling agent, and the rest is propyl propionate / dimethyl carbonate azeotrope solvent. The moisture-curing quick-drying type HFG weather-resistant insulating paint can realize surface drying within 3 minutes through a self-spraying tank mode only by relying on ambient air humidity, has good insulating performance, temperature visualization, high environmental protection, high environmental applicability, and is suitable for the scenes of live-line repair of power equipment and non-power-off spraying.

The invention relates to the technical field of coating robots, and discloses a coating robot for coating insulating paint, which comprises a robot, brackets are symmetrically and fixedly mounted on the robot, walking mechanical arms are rotatably mounted on the brackets, and driving motors are fixedly mounted in the brackets. The side plates and the guide wheels abut against the cable, so that the contact area of the walking wheels and the cable can be increased, the walking wheels cannot swing when encountering strong lateral wind, the robot can be prevented from swinging, the coating effect can be prevented from being affected, the side plates and the guide wheels can be reset when the robot leaves a strong lateral wind area, and the coating effect is improved. The side plates and the guide wheels are separated from the cable, unnecessary abrasion to the side plates and the guide wheels is avoided, cable areas where the walking wheels, the side plates and the guide wheels are about to pass can be dried, the situation of slipping caused by moisture on the surface of the cable can be avoided, and the walking stability of the walking wheels is improved.

The application relates to the technical field of paint, in particular to a water-based high-temperature-resistant inorganic nano silicon-aluminum insulation paint and a preparation method thereof. The water-based high-temperature-resistant inorganic nano silicon-aluminum insulation paint comprises the following raw materials in parts by weight: water-based nano tree 50-70 parts, color paste 18-23 parts, whisker silicon 12-18 parts, water-based dispersing agent 0.4-0.8 parts, water-based anti-graffiti additive 1-1.5 parts, leveling agent 0.5-0.9 parts, defoaming agent 0.4-0.8 parts, cosolvent 3-5 parts, neutralizing agent 0.2-0.8 parts and deionized water 6-16 parts. The obtained paint film has good insulation, good hydrophobicity, lotus effect, safety, environmental protection, non-toxicity, super-high heat resistance, heat resistance reaching above 800 DEG C, and no odor and smoke in the case of high temperature or combustion.

The invention discloses a UV insulating coating for new energy battery cell aluminum shell spraying equipment as well as a preparation method and application of the UV insulating coating. The UV insulating coating comprises the following components in parts by weight: 60-80 parts of a film forming substance, 15-25 parts of a functional material, 0.8-3 parts of a coating additive, 2-6 parts of an initiator and 3-6 parts of pigment, the film forming substance comprises organic silicon modified polyurethane acrylate resin and an acrylate monomer with good insulativity; the functional materials are nano silicon-calcium powder, high-purity silica powder and nano aluminum oxide powder. The coating disclosed by the invention realizes 100% curing, no residue and no pollution, an insulating and pressure-resistant protective coating of a battery cell is efficiently completed by one-time coating, high-temperature heating and VOC emission are avoided, the coating is suitable for workpieces in different shapes such as square shells and cylindrical shells, meanwhile, colorful appearance decoration is given, and UV coating construction is completed after a production line is off the production line.

The utility model provides a stirring device for insulating paint processing, which comprises a base, a stirring tank is fixedly mounted at the top of the base, support frames are fixedly mounted on the left side and the right side of the base, a stirring mechanism is arranged in an inner cavity of the stirring tank, and the stirring mechanism comprises a double-shaft motor and a first gear. The first gear is movably connected to the rear end of the outer side of the supporting frame through a bearing, and the front end of the outer side of the supporting frame is movably connected with a second gear through a bearing. According to the stirring device for the insulating coating, the coating adhered to the inner wall of the stirring tank can be effectively scraped through the scraping plate while the insulating coating is stirred, the scraping effect is good, the wall scraping effect is achieved while the coating is stirred, and the problem that the follow-up stirring effect on the insulating coating is affected due to the fact that the coating is adhered to the inner wall of the stirring tank is solved.

The invention relates to the technical field of dispersion liquid preparation, and discloses a high-toughness and high-adhesive-force temperature-resistant insulating paint, a preparation method and a coating forming method.The paint comprises a component A and a component B. The weight ratio of the component A to the component B is 10-20: 1, and the component A takes methyl phenyl silicone resin as a film forming base material; the component A is a mixture of a silane coupling agent KH550 and xylene, and the component B is a mixture of a silane coupling agent KH550 and xylene. The preparation method of the coating comprises the following steps: mixing, dispersing, grinding and filtering the component A, and mixing and stirring the component B; the forming method of the coating comprises the steps of mixing and curing of the component A and the component B, construction and stepped heating curing. Through formula collaboration and process optimization, the cured coating can still keep excellent insulating property, adhesive force and toughness in a high-temperature environment, and is suitable for insulating protection of metal substrates in the fields of high-temperature motors, aerospace and the like.

The application discloses a kind of weather-resistant insulating coating and preparation method thereof, belong to functional coating material technical field.The weather-resistant insulating coating includes the following weight parts of component: polyester resin 45-65 parts, curing agent 3-8 parts, leveling agent 0.5-1.5 parts, benzoin degassing agent 0.3-0.8 parts, ultraviolet absorber CoWO4-ZnS 1-5 parts, antioxidant 0.3-1.0 parts, dispersing agent 0.2-0.8 parts, defoaming agent 0.1-0.5 parts, pigment 5-20 parts.By CoWO4 with ZnS composite, wide band ultraviolet absorption and efficient separation of photo-generated carriers are realized, and the weather resistance of coating is significantly improved.

The application discloses an anti-icing insulating coating and a preparation method and application thereof. The preparation method of the anti-icing insulating coating comprises the following steps: 1) dissolving SIS block copolymer in an organic solvent, adding a photoinitiator and ammonia / organic amine, and then irradiating with ultraviolet light to obtain a reaction mixture; and 2) adding 3-mercapto propyl triethoxysilane and tetraethyl orthosilicate into the reaction mixture in step 1), and then irradiating with ultraviolet light to obtain the anti-icing insulating coating. The coating formed by the anti-icing insulating coating has excellent insulating performance and hydrophobic performance, can achieve the anti-icing effect, and is suitable for large-scale industrial application.

The utility model relates to the technical field of electrified spraying equipment, in particular to a high-weather-resistance insulating paint coating device which comprises a material conveying pipe, an extension pipe, a connecting assembly and a limiting ring. A universal curved pipe is arranged at the top end of the conveying pipe, a spray head is arranged at the end of the universal curved pipe, and a connector is arranged on the side face, close to the bottom end, of the conveying pipe; the extension pipe is mounted at the bottom end of the conveying pipe, and the top end is inserted into the inner side of the bottom end of the conveying pipe. The extension pipe is inserted into the bottom end of the material conveying pipe and fixed through the limiting bolt, so that the material conveying pipe and the extension pipe are detachably connected, meanwhile, the material conveying pipe is connected with the electric pole through the fixing assembly, the connecting assembly is fixedly installed on the electric pole through the fixing assembly, and meanwhile, the material conveying pipe is placed on the inner side of the connecting assembly through the limiting ring; and a worker can change the position on the electric pole, and the convenience of coating work is improved.

The invention discloses an intelligent component optimization method and system for an anti-condensation insulating coating, and relates to the technical field of data processing, and the method comprises the steps: building a component database of the anti-condensation insulating coating, determining the initial range of components, and building a component-performance prediction model; with target performance parameters analyzed by the application scene as a target, optimizing the initial range of the components through the component-performance prediction model to obtain predicted theoretical components; performing reliability deviation peak analysis according to the target performance parameters in combination with the components of the prediction theoretical components and the initial components, and positioning the test verification components; and carrying out experimental test verification based on the test verification component, and determining a final optimized target coating component. The technical problems that in the prior art, anti-condensation insulating paint formula optimization depends on artificial experience, and multi-performance index collaborative optimization is difficult to achieve are solved, and the technical effects of achieving intelligent collaborative optimization of multi-target performance and improving formula optimization efficiency and accuracy are achieved.

The invention discloses an insulating coating for safe operation of electrical equipment and a preparation method of the insulating coating. The insulating coating comprises a component I and a component II, wherein the component I is prepared from modified epoxy resin, flaky nano mica, nano aluminum oxide, macromolecular polyethylene, PEEK micro powder, a dispersing agent, a reactive diluent and a flame retardant; the component II comprises modified epoxy phenolic aldehyde, a reactive diluent, nano silicon carbide, nano aluminum oxide, a dispersing agent and a flame retardant. The insulating paint disclosed by the invention has high-performance insulativity, can be used in severe environments such as high voltage, high temperature, acid, alkali, salt and the like, keeps good insulativity and physical and mechanical properties, and can be widely applied to electrical equipment facilities in various industrial places in reality.

The invention relates to a flame-retardant insulating coating as well as a preparation method and a spraying method thereof. The preparation method comprises the following steps: S1, carrying out surface modification treatment on mica microsheets and aluminum oxide nanosheets; s2, adding an inorganic film forming matter matrix, an auxiliary agent and a solvent into a high-speed dispersion machine, and carrying out preliminary mixing to obtain slurry A; s3, slowly adding mica microchips subjected to surface modification treatment into the slurry A under strong shearing; then adding aluminum oxide nanosheets subjected to surface modification treatment and a nano auxiliary filler, and continuing high-speed shearing to obtain slurry B; s4, adding ceramic fibers into the slurry B, and stirring at a low speed, so that the ceramic fibers are dispersed into the slurry to obtain slurry C; and S5, carrying out nanoscale grinding on the slurry C, and then standing and curing to obtain the coating. The coating disclosed by the invention has good insulativity, flame retardance, thermal conductivity and adhesion stability.

This invention discloses a core coating device for transformer production, comprising: a coating box, a slide rail, a slide table assembly, a drive assembly, and a sliding assembly; the coating box contains insulating paint; the slide rail is disposed inside the coating box; the slide table assembly is used to place the core body, and the slide table assembly is slidably connected to the slide rail, which guides the slide table assembly; the drive assembly is used to drive the slide table assembly to move intermittently; the sliding assembly is disposed between the slide table assembly and the slide rail, and the sliding assembly can complete curved sliding during the movement of the slide table assembly driven by the drive assembly, thereby increasing the movement path of the slide table assembly within the coating box. This invention has the advantage of improving the contact effect between the core body and the insulating paint through wave-like motion guided by the sliding assembly, thus improving the coating effect of the core body.

The application relates to the technical field of power equipment, in particular to a self-balancing coating device, an extruding mechanism and a storage mechanism are arranged at the top of a support frame, a spraying mechanism is connected with the storage mechanism and is arranged at one side of a wiring mechanism, a plurality of rotor mechanisms are symmetrically arranged at the two sides of the support frame and are rotationally connected with the support frame, the whole device is driven to ascend by the rotor mechanisms, and the device is automatically hung on a power transmission line by the wiring mechanism to walk, the working efficiency is high, the storage mechanism is extruded according to the material consumption of the spraying mechanism by the extruding mechanism to supply the spraying mechanism with material while walking, the surface of the power transmission line is sprayed by the spraying mechanism, the insulating paint is uniformly attached to the surface of the power transmission line, the rotor mechanism at one side is rotated by 90 degrees to blow air while spraying, the crosswind is offset, the device walks and coats stably, the intelligent degree is high, and the spraying effect is improved.

The invention provides an insulating paint electrified spraying device and method, and belongs to the technical field of paint spraying, the insulating paint electrified spraying device comprises an air compressor, two pressure barrels and a grouting machine, the number of the pressure barrels is two, an air outlet of the air compressor is connected with air inlets of the two pressure barrels respectively, discharging ports of the two pressure barrels are connected with two feeding ports of the grouting machine respectively, and the grouting machine is connected with the air compressor. Two discharging ports of the grouting machine are connected with a feeding port of the spray head, and an air inlet of the spray head is connected with an air outlet of the air compressor. The spraying speed and the output flow of the insulating paint can be controlled, the consistency of the spraying thickness is guaranteed, then the spraying efficiency of the insulating material is improved, meanwhile, good insulating performance is achieved, and the safety requirement of 35 kV hot-line work can be met.