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38results about How to "Long-term removal" patented technology

Nano-solution for tiles to remove formaldehyde and production process of formaldehyde-removing tiles

InactiveCN102728298AStrong formaldehyde adsorption capacityLong-term removal of formaldehydeOther chemical processesDispersed particle separationTitanium dioxideMaterials science
The invention discloses a nano-solution for tiles to remove formaldehyde and a production process of formaldehyde-removing tiles. The nano-solution for tiles to remove formaldehyde includes a porous mineral loaded titanium dioxide composite material and a tile antifouling solution. The porous mineral loaded titanium dioxide composite material is added into the tile antifouling solution to form a mixture. The production process of formaldehyde-removing tiles includes the following steps of: (1) cleaning tile surfaces; (2) preparing a nano-base solution for tiles to remove formaldehyde; (3) conducting casting, daubing and extrusion with a grinding tool; (4) repeating the operation of step (3); (5) adding water to clean the tile surfaces; (6) preparing nano-surface solution for tiles to remove formaldehyde; (7) conducting casting, daubing and extrusion with the grinding tool; and (8) repeating the operation of step (7). The nano-solution for tiles to remove formaldehyde of the invention has a strong formaldehyde adsorption ability, and can realize the purpose of sustained removal of formaldehyde. The production process of formaldehyde-removing tiles of the invention has a low promotion cost, and can be improved on the basis of existing production processes, thus being suitable for popularization and application.
Owner:王付荣

Economic crop belt for cutting down pollutants in ditch in irrigated region

The invention provides an economic crop belt for cutting down pollutants in a ditch in an irrigated region. The economic crop belt comprises an economic crop growing region, a vertical weight lifting repair region, a transitional spacer region and fixing piles, wherein the economic crop growing region is connected with the vertical weight lifting repair region through the transitional spacer region, and the fixing piles are used for fixing the economic crop growing region, the vertical weight lifting repair region and the transitional spacer region at designated spots on one side of the ditch. According to the economic crop belt, organic pollutants and nutritive salt in farmland tail water are removed through assimilation and absorption as well as adsorption and consumption of water planting economic crops and light ceramic particles in the economic crop growing region as well as biozeolite in the vertical weight lifting repair region, the plants growing in the economic crop belt has economic benefits while giving play to ecological benefits simultaneously, the maintaining enthusiasm of farmers can be strengthened, and the generalization performance is strong. During the irrigation period, the device can be put away and put on the ditch to guarantee the water flow speed of the ditch, has the advantages of being low in cost, simple and attractive, economical and environment-friendly, and obvious in effect, and is suitable for cutting down the pollutants on a farmland surface source.
Owner:HOHAI UNIV

Practical air purifier

The invention discloses a practical air purifier. The practical air purifier comprises an air purifier master machine, an air purifier submachine, a first air changing module, a first gas filter, a disinfection module, and a sterilization system, wherein the air purifier master machine comprises a housing; a prefilter, an electrostatic dust collection device, a photocatalyst filter dam, a negative-ion generator and a cross-flow fan are sequentially arranged in the housing; the photocatalyst filter dam is formed by metal grilles coated with a nano-sized titanium dioxide coating; a UV illuminating lamp is arranged at the top of the photocatalyst filter dam; the air purifier master machine comprises an air quality sensor and an intelligent controller; the air purifier submachine comprises a control module and an air purification device; the intelligent controller is used for transmitting control signals to start the air purifier master machine and the air purification device in the air purifier submachine to work; the sterilization system comprises an impurity removal filter screen, a smell removal filter screen, and a sterilizer. Through the adoption of the practical air purifier disclosed by the invention, toxic and harmful gas in the air can be effectively degraded, so that the air is fresh.
Owner:焦燕

Method of cleaning molten steel with multi-foam screen of continuously casted tundish

The invention relates to a method of cleaning molten steel with a multi-foam screen of a continuously casted tundish. The method adopts the technical scheme that 2-4 permeable bricks (4) are arranged between an water inlet (1) and a water outlet (3) at the bottom (5) of the tundish (2), the distance between the permeable bricks (4) is 50-500mm, and the distance from the center of the permeable brick (4) adjacent to the water outlet to the center of the water outlet (3) is 300 to 600mm; before the tundish is cast, argon is introduced to the permeable bricks (4), the flow quantity of argon is 5-10Nl/min, and the pressure is 0.02-0.05MPa; during the tundish casting, the flow quantity of argon is 7-20Nl/min, and the pressure is 0.08-0.15MPa; and the permeable bricks (4) are inclined or plane, and the permeable bricks (4) can be a diffusion type permeable bricks, permeable bricks with through holes, or combination type permeable bricks. The method provided by the invention has the characteristics that the investment is low, the method is simple to operate, and the method can efficiently eliminate foreign gases and a large amount of small non-metal inclusions. Moreover, the method can efficiently reduce the consumption of fireproof materials and pollution, produce no rolling slags in the smelting process, and make the temperature uniform and stable.
Owner:WUHAN UNIV OF SCI & TECH

Formaldehyde-removing nano-liquid for tiles and production process for formaldehyde-removing tiles

The invention discloses a nano-solution for tiles to remove formaldehyde and a production process of formaldehyde-removing tiles. The nano-solution for tiles to remove formaldehyde includes a porous mineral loaded titanium dioxide composite material and a tile antifouling solution. The porous mineral loaded titanium dioxide composite material is added into the tile antifouling solution to form a mixture. The production process of formaldehyde-removing tiles includes the following steps of: (1) cleaning tile surfaces; (2) preparing a nano-base solution for tiles to remove formaldehyde; (3) conducting casting, daubing and extrusion with a grinding tool; (4) repeating the operation of step (3); (5) adding water to clean the tile surfaces; (6) preparing nano-surface solution for tiles to remove formaldehyde; (7) conducting casting, daubing and extrusion with the grinding tool; and (8) repeating the operation of step (7). The nano-solution for tiles to remove formaldehyde of the invention has a strong formaldehyde adsorption ability, and can realize the purpose of sustained removal of formaldehyde. The production process of formaldehyde-removing tiles of the invention has a low promotion cost, and can be improved on the basis of existing production processes, thus being suitable for popularization and application.
Owner:王付荣

A deodorizing fragrance composition

The invention relates to a deodorant fragrance composition which comprises, in weight percent, 60%-70% of modified zeolite, 10%-15% of tourmaline, 8%-12% of deodorants, 5%-10% of plant essential oil,2%-5% of fragrance depositing agents and an appropriate amount of deionized water. A preparation process includes the steps: baking clinoptilolite at the temperature of 500-700 DEG C for 0.5-2 hours to obtain zeolite particles; grinding the zeolite particles to obtain zeolite powder; adding the zeolite powder into tetramethyl ammonium hydroxide; adding nano-silver particles and nano-titania particles; performing ultrasonic oscillating and stirring at the temperature of 90-120 DEG C for 0.5-1.5 hours; flushing obtained mixture with the deionized water; drying the mixture to obtain the modifiedzeolite; adding the deodorants, the plant essential oil and the fragrance depositing agents; stirring and mixing the modified zeolite, the deodorants, the plant essential oil and the fragrance depositing agents; adding the tourmaline and the deionized water; stirring the mixture to obtain a finished product. By the aid of a porous structure of the modified zeolite, the tourmaline, the fragrance depositing agents and the plant essential oil are adsorbed into pore passages, and long-lasting deodorization and faint scent emission are achieved.
Owner:广州飞逸生物科技有限公司

Food-grade formaldehyde scavenger and preparation method thereof

The invention provides a food-grade formaldehyde scavenger and a preparation method thereof, which are used for solving the technical problems that the formaldehyde scavenger is easy to damage skin, low in deep cleaning efficiency and high in preparation cost, and the formaldehyde scavenger is prepared from the following raw materials in parts by weight: 10-25 parts of natural plant extract; 1-2 parts of a penetrant; 1-2 parts of food-grade salt; 5-10 parts of an active factor; 5-10 parts of an active factor retention agent; 3-5 parts of a viscosity modifier; and 60-80 parts of distilled water. The preparation method of the food-grade formaldehyde scavenger comprises the following steps: mixing distilled water and the active factor retaining agent, and adding the natural plant extracting solution, the active factors and the penetrant to obtain an active penetrating fluid; mixing a viscosity regulator, distilled water and food-grade salt to obtain a viscosity regulating solution; and finally, mixing the viscosity adjusting liquid and the active penetrating fluid to obtain the formaldehyde scavenger. The formaldehyde scavenger provided by the invention is safe and environment-friendly, cleans formaldehyde from the source, and has the characteristics of simple process and low manufacturing cost.
Owner:HENAN UNIVERSITY
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