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31results about How to "Slow drain" patented technology

Waterborne fireproof coating for ultrathin expanded steel structure and preparation method thereof

The invention relates to a waterborne fireproof coating for an ultrathin expanded steel structure and a preparation method thereof. The fireproof coating is prepared from the following components in parts by weight: 12 to 14 parts of silicone acrylic emulsion, 16 to 18 parts of vac-veova emulsion, 2.0 to 2.5 parts of expanded perlite, 1.0 to 1.5 parts of hollow glass micro-beads, 39 to 42 parts ofa microencapsulated flame retardant measured by a core material, 3.5 to 4.0 parts of a microencapsulated synergistic flame retardant measured by the core material, 4.5 to 5.0 parts of filler, 1.5 to1.8 parts of a preservative and 3.5 to 4.2 parts of a coating additive, wherein the microencapsulated flame retardant is prepared from a silica gel coated intumescent flame retardant, and the microencapsulated synergistic flame retardant is prepared from silica gel coated synergistic flame retardant. The fireproof coating is high in fire endurance and excellent in durability and water resistance;the effective fireproof material and flame retardant compositions of the fireproof coating loss slowly along with external environmental factors; the effective fireproof service life is long; the fireproof flame retarding effect is good; and the fireproof coating is particularly suitable for an outdoor steel structural building.
Owner:奔腾漆业(上海)有限公司

Method for preparing water purifying agent containing polyaluminum sulfate from aluminum ash, sulfuric acid and optional red mud

The invention provides a method for preparing a water purifying agent containing polyaluminum sulfate from aluminum ash, sulfuric acid and optional red mud, and the method comprises the following steps: uniformly mixing the aluminum ash with sodium carbonate and/or sodium hydroxide and a calcium-containing raw material, roasting at 400-1000 DEG C in an oxidizing atmosphere, reacting a roasted product with the sulfuric acid and the optional red mud until the pH value of slurry filtrate is 3.0-4.0, Al2O3 accounts for 5-12m%, and the basicity is 40-75, filtering to obtain filtrate as the water purifying agent containing the polyaluminum sulfate, and washing filter residue to obtain solid residue for further utilization or tockpiling and landfill. Through the steps of mixing and roasting, theflammable and combustible problems of hydrogen released by metal aluminum hydrolysis or acidolysis, the ammonium nitrogen problem in purified water caused by entering of ammonium produced by acid hydrolysis of aluminum nitride into the water purifying agent, the activation problem of low-activity alumina, especially alpha-alumina, and the problems of stabilization and harmlessness of fluorine in the aluminum ash which need two or three steps to be treated in the prior art can be solved in one time. The hardness of treated water increases slightly during the use of the water purifying agent product.
Owner:山东铝晖环保科技有限公司

Method for preparing water purifying agent containing poly-aluminum chloride from aluminum ash, hydrochloric acid and optional red mud

The invention provides a method for preparing a water purifying agent containing poly-aluminum chloride from aluminum ash, hydrochloric acid and optional red mud. The method comprises the following steps that the aluminum ash, sodium carbonate and/or sodium hydroxide and a calcium-containing raw material are mixed uniformly and calcined at an oxidizing atmosphere at 400-1000 DEG C, the calcinationproduced material is reacted with hydrochloric acid and the optional red mud until the pH of the slurry filtrate is 3.5-4.5, Al2O3 is 3-12m%, the basicity is 40-100 and calcium is 0.01-0.5mol/L, filtering is performed, the filtrate is the water purifying agent containing poly-aluminum chloride, and solid residues obtained by washing filter residues is further utilized or subjected to storage andlandfill. The step A solves the flammable and explosive problem of metal aluminum hydrolysis or acid hydrolysis hydrogen release which needs to be processed by two or three steps in the prior art, theproblem of water-ammonium-nitrogen after purification due to the fact that acid hydrolysis of aluminum nitride produces ammonium to enter the water purifying agent, the activation of low-activity alumina, especially alpha-alumina, and the stabilization and detoxification of aluminum ash containing fluorine; and during the use of water purifying agent products, the hardness of treated water is less increased.
Owner:山东铝晖环保科技有限公司

Far infrared heating mouse pad and preparation method thereof

The invention provides a far infrared heating mouse pad. The mouse pad comprises a surface layer, an insulating heat conducting layer, a far infrared heating paper layer, an insulating heat reflectingfilm layer and a bottom layer in sequence from top to bottom, wherein the far infrared heating paper layer comprises two pieces of far infrared heating paper in parallel; the two pieces of far infrared heating paper are connected through a circuit structure; the circuit structure comprises a combination switch; and the combination switch controls a connection mode of the two pieces of far infrared heating paper to be serial or parallel. According to the mouse pad, the far infrared heating paper layer is utilized for heating, so that the heating area is large and the temperature distribution is uniform; and by utilizing the insulating heat reflecting film layer, the heat loss can be reduced; the circuit structure is utilized to control the connection mode of the two pieces of far infraredheating paper, so as to control the heating power, so that the temperature of the mouse pad can be adjusted to increase the hand comfort of the users; and the far infrared heating paper can be used asa heating material which is environmentally friendly and pollution-free and does not damage the human health.
Owner:NANOCARBON CO LTD

Regenerated flue gas dechlorinating agent and preparation method thereof

The invention discloses a regenerated flue gas dechlorinating agent and a preparation method thereof. The dechlorinating agent is prepared from the following components in percentage by mass: 35%-65% of active components, 10%-35% of auxiliaries, 15%-25% of adhesives and 5%-10% of pore-forming agents. According to the regenerated flue gas dechlorinating agent, the active components are set as one or more of copper oxide, manganese oxide, magnesium carbonate and calcium hydroxide, the types of the active components is enrichsed, the loss speed of the active components is slow when the active components are mixed to prepare the dechlorinating agent, the service life of the dechlorinating agent is prolonged, the new dechlorinating agent preparation method is adopted, after the dechlorinating agent preparation is completed, the whole structure of the dechlorinating agent is stable, and during the use, the dechlorinating agent has the characteristics of high temperature resistance, high water content, high oxygen content and high CO2 content, so that the dechlorinating agent can adapt to the characteristics of the environment when being used in regenerated flue gas, and the using effect of the dechlorinating agent is better and more obvious.
Owner:昆山市精细化工研究所有限公司

Self-cleaning type surface code spraying device for wires and cables for integrated circuits

The invention discloses a skin code spraying device for wires and cables for a self-cleaning integrated circuit, and relates to the technical field of wire and cable code spraying. The self-cleaning type surface code spraying device for the electric wire and the cable for the integrated circuit comprises a box body, a shell, a self-cleaning assembly, a blow-drying and collecting mechanism and a printing ink drying mechanism, the shell is fixedly installed on one side of the box body, a code spraying head is arranged on the inner wall of the box body, and a transition wheel is rotationally installed in the box body. According to the self-cleaning type surface code spraying device for the electric wire and cable for the integrated circuit, washing type self-cleaning is conveniently carried out before traction code spraying of the electric wire and cable, compared with a scraping cleaning mode, the situation that the surface of the electric wire and cable is deformed is avoided, the rotation direction of the cleaning sponge is opposite to the traction direction during cleaning, the cleaning quality is remarkably improved, and the cleaning efficiency is improved. And ink on the surface of the electric wire and cable can be conveniently dried by hot air after the electric wire and cable are subjected to code spraying, and the phenomenon that code spraying data are scratched when the electric wire and cable are pulled after code spraying and drying treatment are not performed in time is avoided.
Owner:本信电子科技重庆有限公司

Preparation method of slow release fertilizer for schoenoplectus trigueter with high fertilizer utilization rate

InactiveCN107805135ASeedlings are pureRealize prenatal and postnatal careSuperphosphatesCalcareous fertilisersMagnesium saltPolyethylene glycol
The invention discloses a preparation method of a slow release fertilizer for schoenoplectus trigueter with a high fertilizer utilization rate. The preparation method comprises the following steps of:mixing whey protein, polymaleic acid, polyethylene glycol and water, carrying out heating, stirring, and heating again, continuously stirring the mixture, carrying out spray drying, adding microcrystalline cellulose and oxidized starch, and uniformly stirring the mixture to obtain a material a; mixing sodium selenite, gypsum powder, wollastonite powder, manganese humate and hexaurea ferric trinitrate, adding water, and stirring the materials uniformly to obtain a first prefabricated material; mixing puffed blood powder, pig manure and sunflower seed meal uniformly, and adding compound fermenting bacteria for fermentation to obtain material c; and adding the first prefabricated material, urea, ammonium sulfate, calcium superphosphate and a potassium magnesium salt into the material c, uniformly mixing the materials, granulating the mixture, spraying the material a for coating to obtain the slow release fertilizer for schoenoplectus trigueter with a high fertilizer utilization rate. Thefertilizer obtained by the method provided by the invention has an extremely high utilization rate of nutrient substances and a slow nutrient substance loss speed, and can improve the quality of schoenoplectus trigueter, enhance the stress resistance of schoenoplectus trigueter, reduce the risk of agricultural environment pollution and protect the environment.
Owner:来安县义坤农业发展有限公司

High-effective lubricating oil fractional distillation device

The invention discloses a high-effective lubricating oil fractional distillation device which includes a pedestal. A fractional distillation box is fixedly connected to the top of the pedestal; a lubricating oil storage box is connected to the top of the right side of the fractional distillation box via a first oil pipe; a heavy oil storage box is connected to the bottom of the right side of the fractional distillation box via a second oil pipe; a transparent glass board and an electronic thermometer are fixedly connected successively to the left side of the fractional distillation box from top to bottom; a mixed basic oil feeding pipe is connected to the left side of the fractional distillation box and is arranged above the transparent glass board. The invention relates to the technical field of lubricating oil processing. During heating, mineral basic oil is heated more uniformly, and the mineral basic oil in the upper and middle parts is heated rapidly and the fractional distillation box has good heat preservative effects. The stirring device can move vertically, so that the mineral basic oil in the upper and lower parts can be mixed well, thereby increasing evaporation speed ofthe mineral basic oil and improving the fractional distillation efficiency of the lubricating oil.
Owner:WUXI FEITIAN GREASE

A rapid dehydration system for iron concentrate powder

The invention discloses a rapid dehydration system for iron concentrate powder, which belongs to the technical field of mineral processing in the metallurgical industry. The dehydration system of the present invention includes a sedimentation tank, a filter device, a high-pressure air blowing device, an air blowing pipe and a solar heating device, wherein: the sedimentation tank includes a pulp inlet, a pulp spacer, a sedimentation tank discharge port and a slope bottom of the sedimentation tank The ore pulp inlet is opened on one side of the top of the sedimentation tank, and the ore discharge port of the sedimentation tank is opened at the bottom of the other side wall of the sedimentation tank; the pulp spacer is set inside the discharge port of the sedimentation tank; There is a slope bottom of the sedimentation tank with high inclination on the left and low inclination on the right, and the inclination slope is 1 to 3%; the filter device is installed on the inner side of the pulp spacer; the high-pressure air blowing device blows air to the iron concentrate powder in the sedimentation tank through the air blowing pipe; the solar energy The heating device is set on the top of the sedimentation tank. The invention realizes the purpose of rapid dehydration of iron ore concentrate powder in a sedimentation tank in a small and medium-sized iron ore dressing plant with low investment and low water content in the final product.
Owner:GUANGXI SHENGLONG METALLURGICAL CO LTD

Fast dehydration system for iron ore concentrate powder

The invention discloses a fast dehydration system for iron ore concentrate powder, and belongs to the technical field of ore dressing in the metallurgical industry. The dehydration system comprises a sedimentation tank, a filter device, a high-pressure gas blowing device, a gas blowing tube and a solar heating device, wherein the sedimentation tank comprises an ore pulp feeding hole, an ore pulp partition strip plate, an ore discharge hole of the sedimentation tank and a slope bottom of the sedimentation tank; the ore pulp feeding hole is formed in one side at the top end of the sedimentation tank, and the ore discharge hole of the sedimentation tank is formed in the bottom of the side wall at the other side of the sedimentation tank; the ore pulp partition strip plate is arranged at the inner side of the ore discharge hole of the sedimentation tank; the bottom of the sedimentation tank is the slope bottom, with an inclined angle which is higher at the left side and lower at the right side, of the sedimentation tank, and the gradient of the inclined angle is 1-3%; the filter device is arranged at the inner side of the ore pulp partition strip plate; the high-pressure gas blowing device blows gas to the iron ore concentrate powder in the sedimentation tank by virtue of the gas blowing tube; and the solar heating device is arranged on the top of the sedimentation tank. According to the fast dehydration system, the iron ore concentrate powder of ore dressing plants for small and medium-sized iron ore mines is fast in dehydration in the sedimentation tank; the investment is little; and a final product is low in moisture content.
Owner:GUANGXI SHENGLONG METALLURGICAL CO LTD

Regenerated flue gas dechlorinating agent and preparation method thereof

The invention belongs to the technical field of dechlorinating agents, and relates to a regenerated flue gas dechlorinating agent and a preparation method thereof, the dechlorinating agent comprises the following components by mass: 20%-30% of a carrier, 50%-60% of an active component, 10%-25% of an auxiliary agent, 0.5%-1.5% of an inert separant, and 1%-10% of a pore forming agent; the sum of the mass percentages of the components is 100%. According to the prepared regenerated flue gas dechlorinating agent, the modified molecular sieve is adopted as a carrier, the rich pore channel structure of the molecular sieve is optimized, the pore volume and the specific surface area are increased, the surface acidity of the molecular sieve is enhanced, and the combination degree of the modified molecular sieve carrier and active components is enhanced; when multiple active components are loaded on the molecular sieve to prepare the dechlorinating agent for use, the adsorption activity of the dechlorinating agent is improved, and meanwhile, due to the addition of the inert separant and the auxiliaries, the sintering of the active components is prevented, so that the whole structure of the dechlorinating agent is more stable, the maximization of the chlorine capacity of the dechlorinating agent is effectively realized, and the dechlorinating agent has the characteristic of high temperature and high water resistance.
Owner:QINGDAO UNIV OF SCI & TECH +1

An ultra-thin intumescent steel structure water-based fireproof coating and preparation method thereof

The invention relates to a waterborne fireproof coating for an ultrathin expanded steel structure and a preparation method thereof. The fireproof coating is prepared from the following components in parts by weight: 12 to 14 parts of silicone acrylic emulsion, 16 to 18 parts of vac-veova emulsion, 2.0 to 2.5 parts of expanded perlite, 1.0 to 1.5 parts of hollow glass micro-beads, 39 to 42 parts ofa microencapsulated flame retardant measured by a core material, 3.5 to 4.0 parts of a microencapsulated synergistic flame retardant measured by the core material, 4.5 to 5.0 parts of filler, 1.5 to1.8 parts of a preservative and 3.5 to 4.2 parts of a coating additive, wherein the microencapsulated flame retardant is prepared from a silica gel coated intumescent flame retardant, and the microencapsulated synergistic flame retardant is prepared from silica gel coated synergistic flame retardant. The fireproof coating is high in fire endurance and excellent in durability and water resistance;the effective fireproof material and flame retardant compositions of the fireproof coating loss slowly along with external environmental factors; the effective fireproof service life is long; the fireproof flame retarding effect is good; and the fireproof coating is particularly suitable for an outdoor steel structural building.
Owner:奔腾漆业(上海)有限公司

Building energy-saving solar heat storage water supply system

The invention discloses a building energy-saving solar heat storage water supply system which comprises a water storage tank, evacuated collector tubes, a reflecting plate, a heat preservation water tank and a supporting frame. The reflecting plate is located on the sides, obliquely facing downwards, of the multiple sets of evacuated collector tubes; one end of the heat preservation water tank communicates with the interior of the water storage tank through a connecting pipe; each evacuated collector tube comprises a glass outer tube and a glass inner tube; a vacuum cavity is formed by each glass outer tube and the corresponding glass inner tube, and arc-shaped reflecting plates and air suction films are arranged in the vacuum cavities; an air suction film is attached to the inner wall of each glass outer tube; lenses are annularly arranged on the inner walls of the glass outer tubes; and the two groups of arc-shaped reflecting plates are symmetrically arranged in each vacuum cavity and attached to the inner wall of the corresponding glass outer tube, and the outer arc directions of the arc-shaped reflecting plates correspond to the outer wall of the corresponding glass inner tube. According to the building energy-saving solar heat storage water supply system provided by the invention, the heat efficiency of a solar water heater is improved, and the heat preservation performance is improved.
Owner:武汉赛尔太阳能科技有限公司

A method for rapid dehydration of iron concentrate powder in a sedimentation tank

The invention discloses an iron concentrate powder high-speed dehydration method in a settling pond and belongs to the technical field of metallurgical industry beneficiation. According to the method, multiple rectangular concrete settling ponds with inclined slope bottoms are constructed, an air compressor blowing device is arranged, the tail ends of blowing pipes which are connected into an air compressor are inserted into the pond from the upper end to the lower end of the settling pond for conducting 'compressing and blowing', the extra moisture in the pond is floated out of the surface of the settling pond along with air flow in the pond, standing is conducted for a while, after the clean water on the surface of the pond is drained completely, the moisture content of the iron concentrate powder in the pond can reach 10%, and materials can be discharged. By the utilization of the theories that the iron concentrate powder is not large in density and not prone to absorbing water, the moisture absorbed on the surface of the iron concentrate powder is much and irregular in shape, so that a gap is large and an air flow channel is formed, and therefore the moisture on the surface of the iron concentrate powder is easy to blow out. By means of the method, the high-speed dehydration of the iron concentrate powder in the settling pond of small and medium sized iron ore mine dressing plants can be achieved, the investment is little, and the moisture content is low in a final product.
Owner:马鞍山市茂鑫环保新材料有限公司

Fresh-keeping storage method of cucumbers

The invention discloses a fresh-keeping storage method of cucumbers, and particularly relates to the field of fresh-keeping storage of vegetables, which comprises the following steps: S1, picking andscreening: screening picked cucumbers, removing damaged cucumbers, removing flower heads and reserving stems of qualified cucumbers, and grading according to the lengths of the cucumbers; S2, cleaningand drying: using salt, baking soda and water to prepare cleaning water, wherein the ratio of the salt to the baking soda to the water is 1: 1: 100, soaking for 20-30 min, and after being taken out,washing the materials with clear water and air-drying the product; and S3, mixed liquid spraying: specifically, preparing the mixed liquid firstly, wherein the mixed liquid is prepared from the following components in parts by weight: 0.1-0.4 part of sugar, 0.1-0.4 part of yeast, 0.2-0.35 part of vinegar and 0.2-0.35 part of baijiu, then adding the mixed liquid into water to be diluted and stirredfor 10 min, and putting the stirred mixed liquid into a sprayer. The cucumbers are graded according to the lengths of the cucumbers, the cucumbers with moderate lengths and higher grades are selected, the mixed liquid is sprayed on the surfaces of the cucumbers, the storage time is longer, the taste of the cucumbers is improved, water loss is slower, and the cucumber grade can be improved.
Owner:江苏康润农业科技发展有限公司 +1

Preparation method of special fertilizer for mat grass for improving soil hardening

InactiveCN107759355APure mat grass seedlingsStrong hair growthCalcareous fertilisersExcrement fertilisersChemistryPolyvinyl alcohol
The invention discloses a preparation method of a special fertilizer for mat grass for improving soil hardening. The preparation method comprises the following steps: mixing ammonium molybdate, lightcalcium carbonate, quartz sand, manganese sulfate and diaminoferric xanthohumate, adding water and uniformly stirring the materials to obtain a first prefabricated material; uniformly mixing waste oilresidues, pigeon dung and chrysanthemum meal, and adding an EM bacterial agent for fermentation to obtain a second prefabricated material; adding the first prefabricated material, saturated ammonia water, ferric ammonium phosphate, a defluorinated phosphate fertilizer and a kiln ash potash fertilizer into the second prefabricated material, carrying out uniform mixing and granulating, spraying ananti-caking agent for coating to obtain the special fertilizer for the mat grass for improving soil hardening. The anti-caking agent is prepared by the following processes: mixing keratin, polymaleicacid, polyvinyl alcohol and water, heating and stirring the mixture, heating the mixture again, continuously stirring the mixture, carrying out spray drying, adding talcum powder and cyclodextrin, andstirring the mixture uniformly to obtain the anti-caking agent.
Owner:来安县义坤农业发展有限公司

A kind of organic light-emitting diode substrate and its preparation method, display panel

The invention discloses an organic light emitting diode substrate, a preparation method thereof, and a display panel. The substrate includes a base and a pixel defining layer arranged on the base to define a plurality of pixel regions. In the first direction, the width of the bottom of the cross section of the pixel defining layer is smaller than the width of the top. In the second direction, the cross section of the pixel defining layer The width of the bottom is greater than the width of the top. For such a substrate, when the organic light-emitting material solution is printed on the pixel area, during the drying process, the airflow loss in the pixel area is relatively slow in the first direction, while the airflow loss in the second direction is relatively fast, thereby offsetting the microaction and migration. The effect of distance on drying balances the redistribution process of the organic light-emitting material in the pixel area, improves the uniformity of the morphology of the organic light-emitting layer in the first direction and the second direction, and improves the lifespan and display effect of the OLED device. The invention also proposes a preparation method of the substrate and a display panel comprising the substrate.
Owner:BOE TECH GRP CO LTD

A kind of rapid dehydration method of iron concentrate powder

The invention discloses a rapid dewatering method for iron concentrate powder, and belongs to the technical field of ore dressing in metallurgy industry. According to the method, four sedimentation basins are established, and a high-pressure gas blowing apparatus and a solar energy heating apparatus are provided. The end of a gas blowing pipe put into the high-pressure gas blowing apparatus is artificially inserted from the upper end to the lower end of each sedimentation basin for successive pressurized gas blowing, superfluous water in the basin floats to the surface of the sedimentation basin along with the gas flow in the basin, and standing is performed for a period after all clear water at the basin surface is completely discharged; and when standing is performed, residual water is evaporated under the heating effect of the solar energy heating apparatus and the heat conduction effect of iron concentrate self, and when the water content of the iron concentrate powder in the basin reaches 10% or lower, the product can be cleared and discharged. The method realizes target that the iron concentrate powder in the sedimentation basin of a small / medium-size iron-mine ore dressing plant is rapidly dewatered as well as the investment is less, and the final product is low in water content.
Owner:马鞍山市茂鑫环保新材料有限公司
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