78results about How to "Play a self-cleaning role" patented technology

The invention relates to the technical field of chemical engineering and in particular relates to a layer-by-layer clicked, bonded and self-assembled graphene oxide polyolefin separation membrane and a preparation method thereof. The preparation method comprises the following steps: mixing an unmodified polyolefin separation membrane with bromine and irradiating bromine by ultraviolet light so as to prepare a bromo-membrane; performing nucleophilic substitution on the bromo-membrane and sodium azide to prepare a polymer membrane with an azide group; preparing graphene oxide with the azide group and alkynyl by using open-looping and condensation methods; performing layer-by-layer clicking, bonding and self-assembling on the graphene oxide with the azide group and alkynyl to be formed onto the surface of the polyolefin separation membrane with the azide group, thereby achieving layer-by-layer clicking and self-assembling modification on graphene oxide on the surface of the polyolefin separation membrane. The preparation method is a universal method for polyolefin separation membrane surface modification. The hydrophilia and the anti-pollution property of the polymer membrane are improved, the polyolefin separation membrane is permanently modified, and thus the polyolefin separation membrane can be widely applied to the field of chemical engineering.

The invention relates to control valve of braking device that includes valve body, valve core and shuttle valve. The feature is that the valve core adopts two position and tee coupling valve core. One end of valve core connects to the output end of shuttle valve. The input end of shuttle interface B and C connect to hydraulic system pressure output end. The other end of spring cavity of valve core connects to oil tank. And the input interface of control valve P connects to low voltage constant pressure resource. The cavity of valve core connects to output interface A of control valve through output end. The output interface A connects to brake. Cavity of valve core connects to interface L, which connects to oil tank, through return check valve and control valve. The invention has the advantages of simple and small volume, etc.

The invention discloses a novel electrostatic cooking fume purification integral machine which comprises a shell, wherein a cooking fume collection cover is mounted on one side of the shell; a water tank is arranged at the bottom of the shell; an exhaust fan is mounted inside the shell; cooking fume purification cavities are formed in two sides of the exhaust fan; an air outlet and an air inlet communicated with the cooking fume purification cavities are formed in the shell; an electric field purification device, a first cyclone baffle filter, a self-sucking baffle purifier and a second cyclone baffle filter are sequentially mounted from the air outlet to the air inlet inside the cooking fume purification cavities; and a detergent replenishing device is connected with the water tank. Due to a five-stage efficient oil removal purification system, the integral machine has ideal oil removal effect, a detergent can be automatically replenished, filters of the cooking fume purification cavities can be automatically cleaned to ensure optimal performance, the maintenance cost is greatly reduced, waste oil is automatically collected and recycled, and thus pollution is reduced.

The invention discloses multifunctional environment-friendly waterproof paint. The paint comprises, by weight, 25-35 parts of waterborne acrylic emulsion, 10-20 parts of butylbenzene emulsion, 10-20 parts of titanium dioxide, 5-10 parts of light calcium carbonate, 2-5 parts of ceramic fibers, 2-5 parts of molybdenum disulfide, 1-3 parts of dispersants, 0.1-2 parts of adhesion promoters, 0.1-1 part of an ultraviolet absorbent, 0.1-1 part of an antioxidant, 0.1-1 part of a defoamer, 0.5-5 parts of thickeners, 1-2 parts of coalescing agents and 10-25 parts of water. The multifunctional environment-friendly waterproof paint simultaneously has good adhesive force and mechanical properties, is good in ageing resistance, cracking resistance and temperature adaptability, is free of toxin, and is excellent in comprehensive performance.

The invention discloses a rattan washing device for rattan-plaited furniture. The rattan washing device comprises a washing device body and a sealing cover and is characterized in that the sealing cover is arranged above the washing device body, telescoping air cylinders are mounted on two sides of the washing device body, the telescoping air cylinders are connected with the sealing cover throughair cylinder rods, a first motor is mounted at the top of the sealing cover, a coupler is mounted at the center of the bottom of the sealing cover, the coupler is in transmission connection with the first motor through a reducer, and a left washing shaft and a right washing shaft are mounted on the coupler. The rattan washing device has the advantages that automatic soaking and washing can be completely only by placing rattans into a washing cavity, manpower cost can be saved, worker labor intensity can be relieved, soaking and washing are combined, rattan processing efficiency is increased, and washing quality standardization is achieved; auxiliary washing shafts and the left and right washing shafts are coordinated to rub the surfaces of the rattans so as to remove dirt, and bristles onthe surfaces of the left and right washing shaft rub each other to achieve self-cleaning.

The invention discloses a self-cleaning oxide film, which is doped by SrTiO3 of different valent state metal ions as X: SrTiO3, wherein X is one of Cr3+, Zn2+, Al3+, Ga3+, Ge3+, In3+, W6+, Ta5+, Nb5+ or V5+ with doped density at 0.01-10mol%. The making method comprises the following steps: weighing organic salt or nitrate of raw material X according to doped density of X; adding (CH3COO) 2Sr.0.5H2O, Ti (OC2H5) 4 and raw materials into carbinol; adding acetic acid; heating; stirring until the liquid is transparent; blending three carbinol with Sr2+, Ti4+ and X; stirring until transparent; adjusting density through carbinol; adjusting pH value through acetic acid or ammonia; sedimenting the composite solution on the substrate through whirl coating equipment; annealing in the pipe-typed furnace to obtain the first layered film; sedimenting for several times until the thickness of film reaches 10nm-1um; placing film in the pipe-typed furnace to anneal; crystallizing film completely; fitting for purifying local indoor air as coating of building surface, mirror surface, metal surface and ceramic surface.

The invention discloses a vertical solar support for a set top box. Fixing plates are vertically arranged on a base to form a vertical hollowed-out containing space which allows the set top box to be placed vertically, so that space is saved. A fan is arranged in the base which is in a hollow structure, the fixing plates are provided with a plurality of holes, on the one hand, heat radiation of the set top box is facilitated while effectiveness in utilization of the set top box is improved, and on the other hand, due to blowing action of the fan, dust accumulated outside the set top box and the fixing plates can be avoided, and a self-cleaning function is realized. In addition, flexible solar panels are arranged outside the fixing plates respectively, and the fan is connected with the storage battery which is arranged in the base, so that indoor sunshine can be fully used and converted into electric energy for driving the fan to rotate, consumption of common batteries is reduced, and energy saving and environment friendliness are achieved.

The invention discloses a novel self-cleaning dust-removing water film filtering plate. The novel self-cleaning dust-removing water film filtering plate comprises a filtering plate edge frame, wherein a plurality of metal wire net plates and plastic net plates are arranged in the filtering plate edge frame; the metal wire net plates and the plastic net plates are alternatively arranged at intervals; each metal wire net plate is formed by weaving a plurality of wave-shaped steel wire nets; the metal wire net plates and the plastic net plates are fixed with each other by metal wires. When large-particle dust passes through the metal wire net plates and the plastic net plates, the metal wire net plates are deformed to vibrate, and the dust adhered to the metal wire net plates and the plastic net plates is crushed and dissolved by continuously-impacting water particles, so as to be brought away, and furthermore, the self-cleaning effect is realized and the filtering plate can be used for a long period; impact in different directions is generated by movement directions of particles via through holes of different angles, so that the dust gas and water mist are sufficiently mutually mixed, collided and adsorbed under the action of the plurality of layers of net plates; the specific gravity of dust particles, which are not dissolved, is increased under the action of steam after the particles pass through the unit, and the particles can be easily centrifuged and condensed in the next procedure.

The invention provides a low-VOC (Volatile Organic Compound) glass fiber enhanced polypropylene composite material plate for an automobile and a preparation method thereof. The low-VOC glass fiber enhanced polypropylene composite material plate structurally comprises a honeycomb paper core, wherein glass fiber felts are arranged on the upper and lower surfaces of the honeycomb paper core; hot meltadhesive layers are arranged on the surfaces of the glass fiber felts; polypropylene mixed coatings are arranged on the surfaces of the hot melt adhesive layers; the surfaces of the polypropylene mixed coatings are coated with self-cleaning layers and the self-cleaning layers are nano iron-based titanium dioxide composite photocatalyst coatings; the preparation method of the low-VOC glass fiber enhanced polypropylene composite material plate comprises the following steps: preparing polypropylene mixed coating material liquid; compounding the honeycomb paper core and the glass fiber felts, coating the hot melt adhesive layers, coating the polypropylene mixed coatings and coating the self-cleaning layers. The low-VOC glass fiber enhanced polypropylene composite material plate for the automobile, provided by the invention, has a self-cleaning effect and can be used for adsorbing, decomposing and degrading toxic and harmful gas; a molding technology is simple, and energy saving and environment protection are realized.

The invention relates to a range hood with a self-cleaning function. The range hood comprises a shell and a fan, wherein a filter screen is arranged at an air inlet of the fan, the output shaft of a motor extends to the direction of the filter screen, and a gap is formed between the output shaft of the motor and the filter screen, and the fan is provided with a clutch mechanism capable of enablingthe filter screen to be connected with or separated from an output shaft of the motor; and the range hood is further comprises a cleaning medium supply mechanism and a spray pipe, wherein a water outlet end of the cleaning medium supply mechanism is connected with a first end of the spray pipe, a second end of the spray pipe is arranged to the front side surface of the filter screen correspondingly. Under a oil fume suction state of the range hood, the clutch mechanism drives the filter screen to be separated from the output shaft of the motor, fan impellers rotate, and the filter screen is static; when the range hood needs to be cleaned, the clutch mechanism drives the filter screen to be connected with the output shaft of the motor, the impellers and the filter screen rotate synchronously, at the moment, water can be discharged from the spray pipe to wash the filter screen, the impellers and a volute, so that oil contamination is prevented from accumulating, a self-cleaning effect is achieved, and then the range hood can keep a good oil fume removal function.

The invention discloses a preparation method of a hydrophobic porous polymer conductive material. The preparation method comprises the following steps of performing high-temperature carbonization on abiological base material in an inert atmosphere to obtain a porous carbon-based framework; and enabling the porous carbon-based framework to be compactly paved on a rough structural template, and performing wetting on the porous carbon-based framework by a hydrophobic polymer solution, and then performing micro-phase separating, drying and stripping treatment to obtain the hydrophobic porous polymer conductive material. The preparation method is simple and convenient to operate; and the prepared hydrophobic porous polymer conductive material is light in weight, excellent in hydrophobic performance and high in shielding performance and can be widely applied to the electromagnetic shielding field.

The invention discloses a comb shaped film-bioreactor with free end, which is characterized by the following: possessing film-biological reaction tank; equipping a baffle in the reaction tank; dividing the reaction tank into a sludge mixing oxidation area and a film component part water outlet area with the baffle; communicating the bottom of the sludge mixing oxidation area and the bottom of the film component part water outlet area; arranging a liquid level controller at the upper of the sludge mixing oxidation area; equipping an aeration head at the bottom of the film-biological reaction tank; assembling a comb shaped film-component part with a free end in the film component part water outlet area; connecting to third valve, outflow tube, subatmospheric pressure gage, water outlet sorption pump and pure water tank; connecting the water outlet sorption pump with a time delay relay; connecting the siphon tube road to the subatmospheric pressure gage and the pure water tank; connecting the aeration head to gas flow counter, second valve and aeration pump; connecting the liquid level controller to the first valve and raw water tank. This invention possesses the advantages of simple structure, convenient production and low energy consumption.

The invention discloses a novel heat-insulating and self-cleaning environmentally friendly coating. The coating comprises, by mass, 30-65 parts of an acrylate emulsion, 25-55 parts of a silicone-acrylic emulsion, 5-15 parts of fluoroalkylsiloxane, 5-15 parts of a glass fiber filler, 5-10 parts of mica powder, 3-8 parts of talcum powder, 3-10 parts of ceramic powder, 5-15 parts of nanometer titanium dioxide, 5-10 parts of nano-alumina, 5-10 parts of nano-graphite powder, 2-5 parts of a silane coupling agent, 1-3 parts of a viscosity regulator, 1-3 parts of a leveling agent, 1-3 parts of a dispersant and 0.5-1.5 parts of a defoaming agent. The novel heat-insulating and self-cleaning environmentally friendly coating is used as an environmentally friendly exterior wall coating, and has the advantages of good heat insulating performance, good anti-fouling performance, good self-cleaning performance, long storage period, good stability and good use effect.

The invention discloses gel prepared from biomass pyrolysis fluid. The gel is prepared from the following ingredients by using the total weight of the gel as 100 weight parts: 5 to 60 parts of biomasspyrolysis fluid, 5 to 40 parts of traditional Chinese medicine extracts, 0.1 to 20 parts of menthol, 0.1 to 10 parts of borneol, 2 to 30 parts of gel substrates and the balance water. The pH value is3.0 to 6.0. The gel provides the foundation and examples for the preparation of female external contraceptives, or external use medicine for preventing and treating female venereal diseases, or external use medicine for preventing and treating elytritis, cervicitis and cervical erosion, and external use medicine for preventing and treating carcinoma of uterine cervix. Good clinic application prospects are realized.

The invention provides a degradable toothbrush main material with a self-cleaning function. The toothbrush main material is prepared by the following steps of mixing chitosan, a radix notoginseng extract, a honeysuckle extract, carboxymethyl chitosan, a nanomaterial, biotin, lysine and collagen to prepare a mixed solution; adding a degradable resin material, and carrying out a cross-linking reaction under the action of a cross-linking agent to prepare a textile material; adding polybutylene terephthalate, a lubricant, an antioxidant and polyethylene glycol 200, and performing fusing, dissolving, extruding and cooling to obtain textile particles; and carrying out electrostatic spinning. According to the invention, nanoparticles are adopted to cooperate with the radix notoginseng extract andthe honeysuckle extract, so that the plasticity and elasticity of the material are enhanced, and the self-cleaning, bacteriostasis and efficient decontamination effects of the toothbrush main material are realized; and therefore, the toothbrush main material ensures the oral health of people and is suitable for commercial popularization.

The invention relates to an organic-inorganic hybrid antistatic self-cleaning film, which comprises PEDOT / PSS.TiO2 or PEDOT / PSS.TiO2-Er.N, water, an organic solvent, a dispersing agent and a conductivity enhancer, and is prepared by coating with an antistatic super-hydrophilic self-cleaning coating material. According to the invention, the antistatic self-cleaning film can be subjected to super-hydrophilic photocatalytic degradation, has a self-cleaning effect, also can resist static electricity and fouling, and has important significance when being applied to a glass curtain wall or a solar cell; PEDOT / PSS.TiO2-Er.N can introduce a donor energy level and an acceptor energy level into TiO2 at the same time, so that separation of photo-induced electrons and holes can be accelerated, the recombination probability is reduced, and the photodegradation activity is improved; and the coating mode adopted by the invention is spray coating, spin coating, blade coating or roller coating, so thatthe operation is simple, and the method is suitable for industrial production.

A hydrophobic self-cleaning magnesite wallboard comprises a decorative surface layer (1) made of decorative magnesite cement mortar, an ultra-light filling layer (2) made of plant fiber and perlite composite magnesite cement mortar, a chopped fiber reinforcing and toughening magnesite cement mortar structural layer (3) and a superhydrophobic layer (4), accordint to the hydrophobic self-cleaning magnesite wallboard, the surface of magnesite wallboard is coated with micro-nano structure coating, by combining with the sandwich structure that the ultra-light filling layer is wrapped with the decorative layer and the structural layer, the strength and waterproofing performance of the glass-magnesium board is effectively improve , at the same time, nano tourmaline is adopted in the formula, andthe negative ions released by the nano tourmaline can purify the air, which is beneficial to human health.

The invention discloses an impact-resistant self-cleaning material transfer point rubber chute lining plate. The lining plate is composed of a rubber lining plate wall and chutes and characterized inthat the rubber lining plate wall is formed by combining a plurality of rubber lining plate bodies end to end and fixed on the wall of the chute through T-shaped bolts; each rubber lining plate body is a double-H-shaped whole body and is formed by composite vulcanization of high-performance rubber and a reinforced fabric framework and composed of a base plate, a bearing plate and binding rib strips; bolt holes are formed in the base plates and fixed on the wall plates of the chutes through the bolts; groove patterns are arranged on the surfaces of the bearing plates in the material feeding direction, and each bearing plate is internally provided with an aramid mesh cloth framework layer; the binding rib strips are connected between the base plates and the bearing plates. The lining plate solves the problem that existing devices are easily destroyed and attached to materials, can be widely applied to transfer points of various transportation material industries, can bear large impact load, has high impact resistance, high wear resistance and a certain self-cleaning capability, and is convenient to install, maintain and replace and high in product service life.

The invention relates to a high-strength flame-retardant soil-covering dust screen prepared from waste PVC, a method and application. The high-strength flame-retardant soil-covering dust screen comprises construction waste PVC, a heat stabilizer, a flame-retardant plasticizer, a light stabilizer and an antioxidant. The heat stabilizer, the flame-retardant plasticizer, the light stabilizer and theantioxidant respectively account for 2%-4%, 30%-50%, 0.05%-2% and 0.1%-1% of the mass of the construction waste PVC. Compared with the prior art, the high-strength flame-retardant soil-covering dust screen has the advantages of good anti-aging effect, good flame retardant property, moderate flexibility, light weight and the like; corresponding tailoring is conducted indifferent use occasions according to the requirements of consumers; the high-strength flame-retardant soil-covering dust screen can be used for various stock yards, improves the polluted environment, and saves coal and inorganicsolid waste powder; in addition, the high-strength flame-retardant soil-covering dust screen has certain super-hydrophilicity, dust can be easily washed by rainwater, the self-cleaning effect is achieved, no maintenance cost is needed, and the high-strength flame-retardant soil-covering dust screen can also be suitable for agriculture to improve the quality and yield of crops.

The invention discloses a preparation method of a colored plaster decorative wall material with a self-cleaning function. Firstly, redispersible latex powder, cellulose ether, an antifoaming agent, a lubricant and whiskers are added to a conical twin-screw mixer for mixing, then mica powder, white cement and sepiolite powder are added to the material obtained in the last step, and a pigment premix is added to the material obtained in the last step; quartz powder and natural colored sand are added to the material obtained in the last step, the material is mixed, and the wall material is prepared. A material formula is adopted, a classified even mixing preparation procedure is adopted particularly during preparation, and a good beneficial effect is realized. The plaster decorative wall material effectively overcomes the defects that the coating surface hardness of existing art paint, textured paint, stone-like paint, latex paint and the like is low and coating surfaces cannot be polished.

The invention provides an automatic deslagging device of a pipeline, a heat exchanger pipe and a self-cleaning method, in particular to an automatic deslagging device capable of achieving self cleaning for an air preheater. The automatic deslagging device comprises a rotary deslagging mechanism and a cleaning mechanism. The outer edge of the rotary deslagging mechanism is matched with the inner diameter of the pipeline and rotates under the driving of fluid in the pipeline so as to deslag the inner wall of the pipeline. The cleaning mechanism is used for cleaning the rotary deslagging mechanism and / or the inner wall of the pipeline so as to solve the technical problems that in the prior art, furnace shutdown for deslagging is needed, a spiral device is prone to being abraded, or the cleaning cleanliness is not enough.

The invention provides an oil smoke purifier capable of automatically sucking oil, forwardly and backwardly intercepting oil and collecting oil. The oil smoke purifier comprises a hollow forward rotating shaft, wherein a forward oil smoke purifier is mounted at one end of the forward rotating shaft; the inside of the forward rotating shaft is rotatably connected with a backward rotating shaft; oneend of the backward rotating shaft extends out of the forward oil smoke purifier and is connected with a backward oil smoke purifier; the other ends of the forward rotating shaft and the backward rotating shaft are in driving connection with a forward-backward driving device; the forward oil smoke purifier or the backward oil smoke purifier comprises a fixed inner ring disc and a fixed outer ringdisc; a plurality of first wind-guiding and oil-intercepting sheets are obliquely mounted between the fixed inner ring disc and the fixed outer ring disc along a peripheral direction; the transversesections of the first wind-guiding and oil-intercepting sheets are wave-shaped.

The invention relates to the technical field of aquatic product processing, in particular to aquatic product airing equipment. The equipment comprises a base and four universal wheels and further comprises a controller, a rainproof mechanism, an airing mechanism and a drainage mechanism, the airing mechanism comprises an airing disc, a placing assembly, an angle adjusting assembly and two verticalplates, the rainproof mechanism comprises a driving assembly and two baffles, the drainage mechanism comprises an adjusting plate, two traction assemblies and two limiting assemblies, the two limiting assemblies are symmetrically arranged at the end, away from the vertical plates, of the adjusting plate, the airing disc is located between the adjusting plate and the two baffles, and the angle adjusting assembly and the driving assembly are electrically connected with the controller. The aquatic product airing equipment has good drainage effect and better insect expelling effect, and no pollution is caused. Meanwhile, the airing angle can be automatically adjusted according to the illumination intensity, water such as grease generated during airing can be discharged in time, and taking isconvenient after airing.

The invention discloses an air inlet self-cleaning system for engineering machinery, and belongs to the field of air filtering systems. The defects that in the prior art, a self-cleaning air filter iscomplex in structure, an air compression pump is needed for providing a high-pressure air source, and the self-blowing time interval is long are overcome. According to the technical scheme, the air inlet self-cleaning system for engineering machinery is characterized by comprising a first-stage dry type air filter, a main ventilation pipeline and a second-stage dry type air filter, the first-stage dry type air filter is connected with the second-stage dry type air filter through the main ventilation pipeline, a pipeline fan is arranged on the main ventilation pipeline between the first-stagedry type air filter and the second-stage dry type air filter, and an air inlet pipeline is mounted at an air inlet of the second-stage dry type air filter, a check valve A is arranged on the main ventilation pipeline, and a check valve B is arranged on the air inlet pipeline. The air inlet system can be pressurized in the working process of the whole machine, the air inlet resistance of an engineis effectively reduced, and the first-stage air filter can be cleaned and dedusted through back flushing immediately during shutdown.

The invention relates to a preparation method of a self-cleaning formaldehyde removing wall cloth. The method includes the steps of: preparing 9-21g of sulfonated polyether ether ketone, 7-16g of a hydrogen atom donor polymer, 1.7-12.4wt% of a crosslinking agent, an appropriate amount of acetic acid regulating the pH value of a finishing liquid to 2-5, and the balance deionized water into a 1kg solution; coating a pure cotton fabric with the polymer composite finishing liquid; conducting predrying in a 100DEG C drying oven for 15min; performing baking for 45s in a 160DEG C baking machine for 45s; coating the back of the pure cotton fabric coated with the composite finishing liquid with a nano-Ag water-based resin dispersion liquid, then conducting predrying in a 100DEG C drying oven for 15min and performing baking in a 160DEG C baking machine for 45s; coating the macromolecular resin surface with a gold salt containing foam finishing liquid, and conducting vacuum drying; using 350nm ultraviolet light to conduct irradiation, and reducing gold ions into gold nanoparticles to prepare the self-cleaning formaldehyde removing wall cloth. The wall cloth provided by the invention can effectively degrade toxic and harmful substances and play a role in self-cleaning of wall cloth.

The invention provides an organic garbage sieving machine. The organic garbage sieving machine comprises a sieve tray assembly, wherein the sieving tray assembly comprises a power shaft, a speed reducer and a plurality of driven shafts, the power shaft and the driven shafts are sequentially arrayed in parallel, the power shaft is connected with an output shaft of the speed reducer through a coupling, chain wheels are installed at the end of the power shaft and the ends of the driven shafts, and every two adjacent chain wheels are in linkage through a roller chain; a plurality of sieve trays are arrayed on the power shaft and the driven shafts at equal intervals in series, the sieve trays on the power shaft and the sieve trays on the adjacent driven shafts are arranged in a staggered mode, or the sieve trays on every two adjacent driven shafts are arranged in a staggered mode. In the sieving process, garbage on the sieve trays moves horizontally, in the garbage moving process, the part with the particle size smaller than 15*30 mm leaks from gaps in the side faces of the sieve trays to achieve sieving, and the part with the particle size larger than 15*30 mm is conveyed away.

The invention discloses an anti-splashing device and method used for a welding sensor. The anti-splashing device comprises a base, and a lens light outlet hole and a laser device light outlet hole are formed in the base. A lens blocking piece and a laser device blocking piece are arranged at the positions, on the inner sides of the lens light outlet hole and the laser device light outlet hole, of the base, and a rocking handle and a swing rod are arranged between the lens blocking piece and the laser device blocking piece. The swing rod is engaged with a steering engine output shaft gear, drives the rocking handle to rotate and converts motion into reciprocating linear motion of the lens blocking piece and the laser device blocking piece in the base, and therefore opening and closing of the lens light outlet hole and the laser device light outlet hole are achieved. The device has the advantages of being compact in structure, small in occupied space and capable of achieving self-cleaning. In the using process of a laser welding seam sensor, the influence of splashed welding slag particles on the welding sensor can be effectively blocked. The structure can be applied to a line structured light laser sensor, a surface structured light laser sensor, a binocular sensor and other occasions needing lens protection.

The invention discloses a drying and dedusting integrated machine for real silks. The drying and dedusting integrated machine comprises a drying frame, a feeding roller, a pulling roller and a discharging roller. Support legs are arranged at four corners of the bottom of the drying frame. Holders are mounted on two sides of the drying frame respectively. The feeding roller and the discharging roller are arranged on the holders on two sides. A conveying roller, the pulling roller and an electrostatic precipitation roller are mounted in the drying frame. The conveying roller and the electrostatic precipitation roller are mounted at positions close to the feeding roller and the discharging roller respectively. The drying and dedusting integrated machine has the advantages that air sprayed from an air nozzle is heated by heat dissipated by a heating net in a short time, so that the sprayed air is not overheated; the air nozzle is multidirectional and has high spray volume, so that drying area of the real silks is increased; when the humidity is high, a dehumidifier is started up for dehumidification, and drying efficiency is improved; dust in holes of the real silks is removed by the electrostatic precipitation roller, so that printing effect of the real silks is guaranteed; the dust on the surface of the electrostatic precipitation roller can be scrapped off by a dust scrapping frame, and accordingly, the self-cleaning effect is achieved.

The invention discloses Ni<2+>-doped titanium oxide sol for the preparation of a self-cleaning film. The titanium oxide sol contains a solution A and a solution B, wherein the solution A contains butyl titanate, absolute alcohol and glacial acetic acid in a molar ratio of 1.000:6.667:0.200; the solution B contains absolute alcohol, acetylacetone, distilled water and nickel nitrate in a molar ratio of 3.333: 0.500: 1.000: (0.020-0.030); and after the solution A is mixed with the solution B, the molar ratio of butyl titanate to nickel nitrate is 1: (0.020-0.030). The invention also discloses a preparation method of the sol. The sol in the invention has the following advantages: (1) the formula and process are simple and practical, the sol is suitable for the industrial mass production; and (2) the film prepared by the sol has photocatalytic property and super-hydrophilic property, thus the photocatalytic degradation of organic pollutants can be promoted; and a surface water film can be formed on the surface of the material, thus the adhesive force of inorganic contamination particles to the surface can be reduced, the contaminants on the surface of the material can be cleaned up thoroughly and the self-cleaning function can be realized truly.

The invention discloses a semi-high door provided with an idler wheel guide rail device. The semi-high door comprises a sliding door body, a guide rail (1) installed on the sliding door body, slide blocks (2) connected with the slide rail (1) and a driving device (3) which is used for driving the guide rail (1) and the slide blocks (2) to move oppositely; each slide block (2) comprises a shell (21), idler wheels which are installed on the shell (21) and are connected with the guide rail (1), and scraper plates (23) which are installed at the two sides of the shell (31); the driving device (3)comprises a motor (31) fixedly installed on a platform, a driving wheel (32) installed on the motor (31), tension wheels (33) which are installed on the platform and are located at the two sides of the driving wheel (32) respectively, and a belt (34) of which the two ends are fixedly installed at the two sides of a platform screen door. The friction damage of the slide blocks (2) and the slide rail (1) can be effectively reduced, the semi-high door has a good self-cleaning effect, and the service life of the platform screen door is prolonged.