447results about How to "Achieve self-cleaning effect" patented technology

The invention discloses a super-hydrophobic nano-composite coating comprising the following components in percentage by weight: 0.5-10.5 percent of hydrophobic silicon dioxide, 0.2-5.4 percent of hydrophobic polymer material and 86.5-99.3 percent of solvent, wherein a contact angle of a water drop on a membrane surface prepared by the coating is 152-169 degrees, and a rolling angle is 1-9 degrees. When the coating is transparent, the visible light transmission of the membrane prepared from the coating is 80-94 percent. The invention also discloses a preparation method of the super-hydrophobic nano-composite coating. The nano-composite coating not only has excellent super-hydrophobicity and low cost of products, but also can obtain higher transparency by reducing the contents of the hydrophobic silicon dioxide and the hydrophobic polymer material and has simple preparation processing equipment and high production efficiency.

The invention provides an antireflection and self-cleaning thin film and a preparation method thereof. According to the preparation method, a solid figure structure of a micron size is processed on a transparent flexible thin film through adopting imprinting technologies and surface modification technologies, so that the transparent flexible thin film has antireflection and self-cleaning performance; the antireflection and self-cleaning thin film is integrated on the window layer of a solar battery assembly, and as a result, the surface reflection of the window layer can be effectively inhibited, and the number of photons entering the absorption layer of a battery can be increased; and therefore, the photoelectric conversion efficiency of the battery can be improved, and especially, the efficiency of the battery can be improved more significantly when sunlight obliquely enters the battery. A super hydrophobic film or a super hydrophilic film can be selected as the antireflection and self-cleaning thin film of the invention; since the super hydrophobic film has a high water contact angle, when the super hydrophobic film tilts, water droplets are very easy to roll down and take away surface pollutants, and therefore, a self-cleaning effect can be realized; and based on the photocatalysis, the super hydrophilic film can degrade surface organic contaminations, and therefore, a self-cleaning effect can be also realized.

A drag reduction superhydrophobic coating and a preparation method thereof belong to the technical field of functional nanometer material application. A base of the drag reduction superhydrophobic coating adopts electroless metal deposition technique, a precious metal micro-nanometer binary grading composite structure is constructed on the base and decorated by a low surface energy material, a water static contact angle of the coating is larger than 150 degrees, and a rolling angle is smaller than 5 degrees. The drag reduction superhydrophobic coating is used for a model with motive power by itself, running speed of the model is obviously increased, and drag reduction rate is as high as 20%. The drag reduction superhydrophobic coating has good corrosivity resistance and can resist corrosion of strong acid and strong base solutions. The drag reduction superhydrophobic coating has repairability, and the preparation method can enable hydrophobicity of damaged areas to be rapidly recovered in a short period. The preparation method of the drag reduction superhydrophobic coating is simple, short in preparation period, and high in drag reduction rate.

The invention relates to the field of dish washing machines and discloses a disintegrating slag self-cleaning and filtering system for a dish washing machine and a dish washing machine. The disintegrating slag self-cleaning and filtering system comprises disintegrating slag filtering components, a water cup with a filtering cavity, a wash pump communicated with the filtering cavity through a pipeline, a drainage structure communicated with the filtering cavity through a pipeline and a flat filter covering the filtering cavity, wherein the disintegrating slag filtering components comprise a column-shaped filter rotationally mounted in the filtering cavity and a disintegrating slag blade tightly mounted in the column-shaped filter; a blowhole used for spraying water toward the column-shaped filter is formed in the water cup; and a self-cleaning spray pipe connected with the blowhole through a pipeline is arranged on the wash pump. According to the disintegrating slag self-cleaning and filtering system and the dish washing machine, water sprayed out from the blowhole flushes away food wastes attached to the disintegrating slag filtering components and drives the disintegrating slag filtering components to perform rotational movement, food waste mixtures and foreign objects in water flow are cut into slag by rotational movement of the disintegrating slag filtering components and then discharged, and further, the self-cleaning effect of the filtering system for the dish washing machine is realized.

The invention discloses an oil-water separation device and a preparation method thereof, and belongs to the technical field of chemical process devices. The preparation method comprises the following steps of: alternately putting a foam metal mesh substrate into ethanol and acetone, ultrasonically cleaning, and drying; preparing the required hydrofluoric acid / silver nitrate corrosive liquid; closely combining the foam metal mesh and a silicon chip, immersing in the heated hydrofluoric acid / silver nitrate corrosive liquid, corroding for 5 to 20 minutes, taking out, washing with distilled water, and drying; and soaking the dried device in ethanol solution of a low-surface-energy substance, taking out, washing with distilled water and drying. The device with multiple functions of adsorbing overflowed oil, an oil skimmer and separating oil and water consists of the metal mesh substrate and nano metal silver particles deposited on the surface of the metal mesh substrate, and has the surface modified by the low-surface-energy substance. The device has superhydrophobic / super-oleophilic effect, can be self-cleaned, can bear high temperature of at least 120DEG C, and can collect leaked oil at high temperature. The preparation method is simple, the flow time is short, and the efficiency is high.

The invention relates to a preparation method and applications of super-hydrophobic SiO2 aerogel powder. The method is implemented through the following steps: preparing a silicon source solution, an oil phase, a surfactant and a surfactant aid into a microemulsion; then, neutralizing the microemulsion until the pH value is 6-10 so as to form wet microgel particles; sequentially carrying out ageing, washing and solvent exchange on the wet microgel particles; finally, modifying the obtained product by using a silane modifier, and drying gel at normal pressure and temperature so as to obtain aerogel powder. The method is capable of preparing aerogel powder by using a microemulsion, the particle size of aerogel powder prepared by using the method is uniformly distributed, and prepared aerogel powder has the characteristics of controllable particle size distribution, short preparation period, and capability of being dried at normal pressure and temperature.

The present invention provides an urban house refuse gasification melting incineration treatment method and its equipment. It is characterized by that the high-temperature air obtained from waste heat of smoke produced by recovering, gasifying, melting and incinerating refuse can be introduced into gasifying furnace and incinerator furnace, and can be used as air required for refuse gasification and combustion-supporting air required for melting and incinerating refuse, so that it can ensure refuse stable gasification and complete combustion, and can completely solve dioxine and secondary pollution of heavy metals and others. Said treatment equipment system is formed from storage bin, gasifying furnace, dust-collecting device, incinerator furnace and high-effective heat storage chamber, etc.

The invention discloses a self-cleaning environment-friendly bamboo particle board. The self-cleaning environment-friendly bamboo particle board comprises, by weight, 100 parts of bamboo particles, 10-15 parts of additives, 8-10 parts of activators, 0-5 parts of adhesive, 0.5-1.0 part of waterproof agents, 0.5-10 parts of adsorbents and 0.2-0.5 part of cleaning agents. The invention further discloses a method for manufacturing the bamboo particle board. The self-cleaning environment-friendly bamboo particle board and the method have the advantages that the particle board is made of waste ethanol residues of wood fuel, the absorbents, the cleaning agents, the waterproof agents and the like, the performance of the manufactured particle board can reach national standards, usage of the traditional adhesive can be prevented or reduced, and accordingly formaldehyde emission of the particle board can be greatly reduced; indoor pollution gas can be effectively absorbed by the manufactured particle board with the adsorbents, self-cleaning effects can be realized by the aid of the cleaning agents on the surfaces of the self-cleaning environment-friendly bamboo particle board, and accordingly the self-cleaning environment-friendly bamboo particle board is suitable for building decoration.

The invention discloses a contact assembly of an isolating switch, comprising a main contact (1) and an involutory contact (2), wherein the main contact (1) comprises an electric conduction base (3),a plurality of sensing fingers (6) and a spring component (4), wherein the electric conduction base (3) is provided with an inclined electric conduction contact surface (31), and the plurality of sensing fingers (6) are respectively connected with the spring component (4) so as to lead the rear ends of the sensing fingers (6) to be contacted with the electric conduction contact surface (31) of theelectric conduction base (3) in a conductive way under the action of the spring component (4). The contact assembly is characterized in that the rear ends of the sensing fingers (6) are straight. Asthe rear ends of the sensing fingers are set to be straight structure, the contact wire length between the rear ends of the sensing fingers and the electric conduction contact surface of the electricconduction base can be prolonged, and the self-cleaning function for a rear contact can be better realized.

The invention discloses sewage treatment equipment which comprises a treatment box, a water inlet pipe and a drainage pipe, the water inlet pipe is fixed in the center of the top of the treatment box, the drainage pipe is arranged in the center of the bottom of the treatment box, and the water inlet pipe and the drainage pipe are both communicated with the treatment box. The driving rotating shaft is rotatably connected between the two corresponding sides of the inner wall of the treatment box and is close to the top, the crushing devices are fixed to the surface of the driving rotating shaft, the crushing devices are evenly distributed on the surface of the driving rotating shaft and are located at the end of the water inlet pipe, and the filter screen device is fixed to the inner wall of the treatment box and is close to the bottom; and the invention relates to the technical field of sewage treatment. According to the sewage treatment equipment, the purposes of crushing sand balls and preventing blockage are achieved, the sand balls which are bonded into balls can be crushed in time, impact on the equipment is reduced, the service life of the equipment is prolonged, meanwhile, blockage can be prevented, the filtering effect is good, and the using performance is improved.

The invention discloses a purified water direct drinking machine. The purified water direct drinking machine comprises a machine case as well as a water tank, a heating water tank, a filter, a water pump and a main control circuit board which are mounted in the machine case. According to the purified water direct drinking machine, the volume of water required to be heated is set through a water volume adjustment knob; the main control circuit board is used for controlling a hot water outlet electromagnetic valve, a cold water outlet electromagnetic valve, a flushing electromagnetic valve, a water addition electromagnetic valve and the like, so that drinking water required by a user can be heated and prevented from being unnecessarily and repeatedly heated, and the purpose of energy conservation is achieved; and in addition, the filter can be self-cleaned by virtue of opening and closing of the flushing electromagnetic valve.

The invention discloses anti-permeation rain-print-resistant anti-pollution wall finish paint and a preparation method thereof, and belongs to the technical field of coating. The formula of the anti-permeation rain-print-resistant anti-pollution wall finish paint comprises the following components in percentage by weight: 40 to 50 percent of a nanometer acrylic ester emulsion, 15 to 20 percent of an organic inorganic compound material, 5 to 10 percent of a nanometer silicon emulsion, 6 to 10 percent of titanium dioxide, 0.4 to 0.5 percent of a hydrophobic dispersing agent, 0.6 to 1 percent of a fluorine-carbon surfactant, aids, and the balance of deionized water, wherein the aids comprise the following components in percentage by weight: 1.5 to 2 percent of a film-forming aid, 0.5 to 0.8 percent of an anti-freeizing agent, 0.4 to 0.6 percent of a defoaming agent, 0.1 to 0.2 percent of a PH value stabilizer, 0.3 to 0.4 percent of a thickening agent and 0.2 to 0.3 percent of an anti-corrosion and bacterial agent. The problems of low anti-permeation, rain-print-resistant and anti-pollution properties in the prior art are solved.

The invention relates to an antifungal and antibacterial coating, which comprises the following components: water, acrylic acid copolymer emulsion, propylene glycol, nano-titanium dioxide, nano-zinc oxide, medical stone, diatomaceous earth, talcum powder, mica powder, and hydroxyethyl cellulose , lignin, anti-sedimentation agent, leveling agent, dispersant, defoamer, thickener. The coating has excellent anti-mildew and antibacterial performance and green environmental protection performance. Among them, the added nano-titanium dioxide directly attacks the bacterial cells through photocatalysis, causing the organic matter in the bacterial cells to degrade, achieving the effect of sterilization, and also has a self-cleaning effect; The added nano-zinc oxide achieves the purpose of sterilization through its strong oxidizing property; the added medical stone and diatomaceous earth have strong adsorption functions, and when used in conjunction with nano-titanium dioxide and nano-zinc dioxide, it can not only improve the anti-mold and anti-bacterial properties of the coating It can also improve the safety performance of the coating and meet the requirements of green environmental protection.

The invention discloses a base station antenna polyvinyl chloride (PVC) profile housing with a surface self-cleaning function. The mechanical properties of the PVC profile housing are improved, the ultraviolet light resistance is greatly increased; and moreover, the non-polarity of the surface energy of the profile is significantly increased, thus the surface water contact angle of the profile is significantly increased, the hydrophobicity is increased and the surface self-cleaning function can be achieved. The base station antenna PVC profile housing with the surface self-cleaning function is prepared from the following raw materials in parts by weight: 100 parts of PVC, 1-3 parts of organotin stabilizer, 5-10 parts of polyacrylate toughening agent, 1-3 parts of polyacrylate processing aid, 5-10 parts of titanium dioxide, 0-5 parts of calcium carbonate, 3-5 parts of calcium stearate, 0.3-1 part of polyethylene wax, 0.2-1.2 parts of silicone oil, 0.3-1.2 parts of fluorosilicone oil and 0.2-1 part of organic fluoride.

The invention provides an anti-fog self-cleaning film and a method for preparing the same. The film is characterized in that: Fe2O3, SiO2 and TiO2 are mixed to form a ternary inorganic nanometer composite sol according to the molar ratio of (0.1-0.4):(10-40):100, and a water soluble macromolecular substance of which the molecular weight is between 400 and 10,000 is added to the composite sol according to the concentration of (0.1-4.0)g.L. The anti-fog self-cleaning film can achieve the advantages of super-hydrophilicity, strong hydrophilic retention capability, high transmittance, high photocatalytic activity, high capability of adhering to base materials, and good anti-fog self-cleaning effects.

The invention discloses a temperature-sensitive self-cleaning polyvinylidene fluoride film and a preparation method thereof. The preparation method comprises the steps of taking polyvinylidene fluoride, titanium dioxide and N-isopropyl acrylamide as main materials to prepare the titanium dioxide / N-isopropyl acrylamide nanoparticle / polyvinylidene fluoride blend film. The preparation method is simple in process and easy for operation and popularization, and does not need an expensive instrument; and the prepared temperature-sensitive self-cleaning polyvinylidene fluoride film is good in temperature response performance and self-cleaning property, and has a wide potential application value in the fields of intelligent devices, water treatment, biochemical engineering and the like.

The invention discloses a self-cleaning vibrating cloth bag dust collector, which comprises a dust removal box body, a cleaning box body is fixed on the top of the dust removal box body, horizontally distributed cloth bag fixing frames are vertically fixed on the side wall of the dust removal box body, the dust removal box body and cleaning The boxes are separated by a cloth bag fixing frame. The bag fixing frame is sealed and fixed with a dust removal bag. The bag support frame is set in the dust removal bag. The air inlet channel is fixed at the entrance of the flue gas, the bottom of the dust bag is fixed with a first snap ring, the outer surface of the side wall of the dust removal box is covered with a fixed bearing ring, and the bottom of the bearing ring is vertically and evenly distributed with four supporting columns , a motor is fixed on the surface of the bearing ring. The present invention is provided with a vibrating frame, which is connected to the dust-removing cloth bag through a buffering and pulling mechanism, and the reciprocating motion of the vibrating frame drives the reciprocating vibration of the dust-removing cloth bag, and the vibration amplitude is relatively large, which can safely realize the self-cleaning ability of the dust-removing cloth bag.

The invention provides a plasma waste gas treatment device and method, and belongs to the technical field of waste gas treatment.The plasma waste gas treatment device comprises a thermal reaction system, an air inlet system, a cooling system, a multistage purification washing system, an exhaust system and a liquid circulating system, and the structureis compact, safe and reliable.The plasma wastegas treatment method comprises the following steps of: carrying out high-temperature cracking reaction after waste gas to be treated enters into the thermal reaction system through the air inlet system, and carrying out quenching and preliminary purification after entering the cooling system; carrying out washing and purification for a plurality of times after entering the multistage washing system; finally discharging the waste gas from a chimney through a dehydration layer under the action of an induced draft fan.The waste gas is subjected to high-temperature cracking, cooling, preliminary purification and multistage purification, so that the purification speed is obviously improved; and the waste gas which can be treated by the method comprises perfluorides, inflammable substances, corrosion, poisons and the like, the purification is thorough, the method is safe and reliable.

The invention discloses flame-retardant rigid polyurethane foam of a hydrophobic graphene aerogel coating and a preparation method of the flame-retardant rigid polyurethane foam. The flame-retardant rigid polyurethane foam comprises the following raw materials: polyether polyol, isocyanate, silicone oil, a catalyst A33, tetraethylortho silicate, ethanol, distilled water, poly-dimethyl siloxane, reduced graphene oxide and trimethylchlorosilane. The preparation method of the flame-retardant rigid polyurethane foam of the hydrophobic graphene aerogel coating specifically comprises the following steps: (1) preparing graphene aerogel with tetraethylortho silicate, ethanol, distilled water and reduced graphene oxide according to a certain process; (2) performing ball-milling on graphene aerogel,mixing the ball-milled graphene aerogel with poly-dimethyl siloxane, and stirring the mixture to obtain a coating; (3) coating rigid polyurethane foam with the coating, and drying to obtain the flame-retardant rigid polyurethane foam. The flame-retardant rigid polyurethane foam disclosed by the invention is simple and convenient in preparation process, green and non-toxic and simple in coating method, easy to operate, good in mechanical property and obvious in flame-retardant effect.

The invention discloses a soot desulfurization deduster which comprises a shell with a cavity inside. An air inlet is formed in the middle of the shell, an air outlet is formed in the top of the shell, the shell is divided into a left chamber and a right chamber, the two chambers are the desulfurization chamber and the water curtain dedusting chamber, the middle of the desulfurization chamber is communicated with the water curtain dedusting chamber through a pipeline, the air inlet is located in the position where the desulfurization chamber is located, the air inlet is in parallel connection with a plurality of Venturi tubes in the desulfurization chamber, a wavy baffle is fixed above the Venturi tubes, a scrubbing solution sprayer is arranged between every two adjacent Venturi tubes, a sediment tank is arranged on the lower portion of the desulfurization chamber, the water curtain dedusting chamber comprises a spraying device, water curtain baffles and a waste liquid pool, and the spraying device is communicated with a clear water region of the sediment tank through a circulating water pump. The deduster is good in filtering effect, convenient to use and high in stability.

The invention discloses a pig feed supplying device capable of automatic timed feed delivery and anti-clogging by self-cleaning. The device comprises a supporting frame, a feed bin and a water tank, wherein the feed bin is fixedly connected with an outer side wall of the water tank, the feed bin is welded with a side wall of the supporting frame, an opening on the lower end of the feed bin is hinged with a permanent magnet bin gate, the opening on the lower end of the feed bin is fixedly connected with an electromagnet baffle plate for limiting the upward rotation of the permanent magnet bin gate and a first spring for limiting the downward rotation of the permanent magnet bin gate, and the other end of the first spring is fixedly connected with the permanent magnet bin gate. Every time awater pressing piston slides down, water in the water tank is driven to immerge into a hydraulic cylinder, and then the water pressing piston slides up to press the water in the hydraulic cylinder tobe sprayed from a nozzle under a nozzle tube to a screw and a feed stirring bin, so as to perform uniform flushing and mixing, thereby achieving the self-cleaning effect. The structural design of thedevice greatly improves the automation degree of the whole pig feeding process and saves labor.

The invention discloses a hydrophobic anti-corrosion ceramic coating, which uses epoxy resin and modified silicone resin as a film-forming material, and adds various fillers, auxiliary agents and solvents, including body fillers, pigments and fillers, curing agents, coloring Agent, toughener, diluent, leveling agent, epoxy coupling agent and solvent. The hydrophobic anti-corrosion ceramic coating of the present invention has stable performance, strong adhesion, excellent salt water resistance, strong acid and alkali corrosion resistance, good weather resistance, high hardness, and excellent wear resistance; and it is environmentally friendly and non-toxic (low VOC), and has Good protection, decoration and functional effects, low price of raw materials, simple preparation method, suitable for the surface of metal substrates that need to be protected under harsh corrosion environments.

The invention discloses an environment-friendly self-cleaning type air purifier, which includes a shell. The shell inner wall is fixedly connected to a filter screen, a cleaning device is disposed on the shell inner wall corresponding to the left side of the filter screen, a filter core is disposed on the shell inner wall corresponding to the right side of the filter screen, an air inlet hole is disposed on the left side of the shell inner wall, the left side at the shell inner wall bottom is fixedly connected to an air pump, the top of the air pump is fixedly connected to an air pump pipeline, and the top of the air pump pipeline is fixedly connected to an intercommunicated air inlet pipeline. Through arrangement of the filter screen, the cleaning device and a cleaning solution storage pool, the environment-friendly self-cleaning type air purifier realizes the self-cleaning effect, can clean the dust entering the purifier, thereby delaying the purification effect reduced by too long use, increasing the service life of the purifier, and accordingly, the environment-friendly self-cleaning type air purifier can better purify air, and is conducive to environmental protection.

The invention discloses a water-based epoxy anti-corrosion primer which consists of a component A and a component B, wherein the component A is prepared from the following raw materials in percentage by weight: 10 to 20 percent of a modified amine hardener, 25 to 40 percent of deionized water, 5 to 30 percent of pigment, 15 to 35 percent of a filler, 5 to 15 percent of an antirust pigment, 0.1 to 0.4 percent of a defoaming agent and 0.3 to 0.8 percent of a leveling agent; the component B is prepared from the following raw materials in percentage by weight: 10 percent of an emulsifier, 50 percent of liquid epoxy resin, 39.8 percent of deionized water and 0.2 percent of a defoaming agent; the quality indexes are as follows: the fineness is less than or equal to 15 [mu]m, the epoxy value is 0.28 to 0.30, and the solid content is 55 + / - 2 percent. The invention further discloses a processing method. The primer is solvent-free and can realize odorlessness and zero discharge; a paint film can be naturally dried, smooth, flat and compact; solvent discharge is eliminated in storage, transportation and use processes; the performance meets the requirements of the standard HG / T4759-2014.

The invention relates to an oil-gas separator assembly which comprises a rotary separation segment and a static filter segment. The rotary separation segment comprises a rotating piece, a rotary framework fixedly arranged on the outer side of the rotating piece, a connecting pipe fixedly connected to the inner side of the rotating piece and a rotary impeller fixedly connected to the rotating piece and located in the connecting pipe. A through hole allowing an oil-gas mixture to pass is formed in the rotating piece. A rotary filter element rotating along with the rotary framework is arranged in the rotary framework. The rotary impeller is used for sucking the oil-gas mixture into the oil-gas separator assembly. The static filter segment comprises a shell in sealing fit with the connecting pipe, static frameworks arranged in the shell, exhaust holes formed in the shell and an oil drainage hole formed in the bottom of the shell. A static filter element is arranged in each static framework. According to the oil-gas separator assembly, the pressure of a crankcase cannot be raised while oil-gas separation is effectively carried out, and meanwhile the service life of the filter elements is effectively prolonged. The invention further discloses an internal combustion engine provided with the oil-gas separator assembly.

The invention relates to the field of waterborne coatings, specifically to a waterborne epoxy-modified polyester plate primer and a preparation method thereof. The waterborne epoxy-modified polyester plate primer is composed of the following components in parts by weight: 40 to 50 parts of waterborne epoxy-modified polyester, 10 to 20 parts of amino resin, 5 to 10 parts of fluorocarbon resin, 10 to 15 parts of a pigment slurry, 0.3 to 0.6 part of a defoaming agent, 0.5 to 3 parts of a thickening agent, 0.5 to 1 parts of a leveling agent, 0.1 to 0.5 part of a wetting agent, 0.2 to 0.8 part of a film-forming agent, 0.5 to 1 part of an anti-settling agent and 0.5 to 1 part of an antiseptic, with the balance being deionized water. The primer coating provided by the invention has the advantages of bright and gorgeous color, strong adhesion, excellent corrosion resistance, high mechanical performance, good durability, good self-cleaning performance, and applicability to requirements of different users.

The invention discloses a composite film-coated self-cleaning inorganic ecological decorative plate and a preparation method thereof.The preparation method comprises the following steps that 1, an inorganic ecological decorative plate is taken as a base body, and after the surface of the inorganic ecological decorative plate is subjected to dust blowing cleaning treatment, film coating loading is performed by adopting a photocatalytic hydrophilic coating through powder coating or spraying or a sol-gel method to obtain a TiO2-loaded inorganic ecological decorative plate; 2, the TiO2-loaded inorganic ecological decorative plate obtained in the step 1 is dried or subjected to ultraviolet curing, the drying temperature is 50 DEG C-85 DEG C, the drying time is 0.5-3 h, and after natural cooling is performed, the composite film-coated self-cleaning inorganic ecological decorative plate is obtained.Accordingly, the inorganic ecological decorative plate is taken as the base body, film coating loading is performed by adopting the photocatalytic hydrophilic coating through powder coating or spraying or the sol-gel method, moisture condensation is performed on kitchen and bath fumes, organic matter, sewage and dirt, outer curtain wall dust is self-removed, the self-cleaning capacity is high, and the durability is good.

The invention discloses a brushing double die head filtering device of air ring die surface hot cutting for a plastic granulator. The brushing double die head filtering device of air ring die surfacehot cutting forthe plastic granulator structurally comprises a gantry transverse frame, shaft rotating motors, distribution boxes, propulsion screw rods, pillar rods, a hot cutting granulator box seatand a cross support plate. According to the brushing double die head filtering device of air ring die surface hot cutting for the plastic granulator, the application of the propulsion screw rods in coordination with the hot cutting granulator seat is realized, a three-section type lifting arm is fallen through the propulsion screw rods to drive a thick frame hole filter net to form air ring die surface hot cutting granulation, water diversion siding shaft seats can be arranged at the upper sub-position and lower sub-position of a double-pass box shell and a water ring cleaning slot is separated by a top box partition frame plate, so that plastic colloid attached to the thick frame hole filter net is lifted and cleaned after die cutting and granulation, and the effect of double net liftingand falling and alternation work is formed; and the circular pressure angle micro-moving frame chamfer flushing operation is formed by a plurality of spherical cavity nozzles of a deviated nozzle discaligning to each through hole,the plastic granulator singly uses a double net structure and is matched with air ring ventilation andwater ring cleaning, so that the effect of double ring upper position and lower position automatic cleaning is achieved, and the granulation effect is improved.

The invention relates to the technical field of coatings, in particular to a self-cleaning coating and a preparation method thereof. The self-cleaning coating is prepared from the following raw materials including fluorocarbon resin, inorganic filler, a thickening agent, an enhancer, a self-cleaning additive, a self-cleaning non-adhesion agent, a crosslinking agent, a coupling agent, a flatting agent, a defoamer, a wetting agent, a film-forming additive, other additive and a solvent. The self-cleaning exterior wall coating provided by the invention has very low surface energy so as to have relatively high hydrophobicity and self-cleaning characteristic, is durable in stain resistance, can reach the self-cleaning effect through scouring with rainwater, is strong in weatherability, resists water, acid and alkali, inhibits bacteria, prevents mould and is good in outdoor gloss and color retention.

The invention discloses an intelligent air purifying robot. The intelligent air purifying robot comprises an intelligent robot, an air filtering device, an ultraviolet decomposition chamber, a plasmadecomposition chamber, a catalysis reaction chamber, an absorbing chamber and a plasma generator; the intelligent robot can actively detect air pollutants and control an electric wheel according to aset threshold or a measured threshold exceeding percentage, and advances to a pollutant concentration area to determine a pollution source and to purify air in areas near the pollution source in an emphasized mode; real-time data is stored and sent through a control main board; through interaction with other intelligent equipment, indoor different areas and purified air data can be known in real time; more importantly, when the robot is in a first mode, the air can be dynamically purified; through multilayer structural design, solid and liquid pollutants and bacteria in the air are effectivelycleaned; and meanwhile, negative ions are added in the cleaned air, so that the air becomes ecologically fresh and comfortable.