64results about How to "Pollution has" patented technology

The invention discloses a composite phase-change energy storage material for microcapsules and a preparation method thereof. The coating of the microcapsule is made of silicon dioxide, and the core of the microcapsule is made of a phase-change energy storage material, wherein the phase-change energy storage material is a paraffin organic solid-liquid phase-change energy storage material. 0.2 to 0.5 wt.% of dispersed emulsifier, 52.5 to 62.5 wt.% of solvent water, 18.75 to 31.5 wt.% of phase-change energy storage material and 15.5 to 18.75 wt.% of inorganic silica source are matched and put into a reactor for stirring for 5 to 8 hours; the mixture is uniformly dispersed and emulsified at the temperature 3 to 8 DEG C higher than that for solid-liquid phase change; hydrochloric acid aqueous solution catalyst with the pH value of 0.93 to 4.07 or sodium hydroxide aqueous solution catalyst with the pH value of 8.0 to 12.0 is added into the emulsion; the reacting solution is naturally cooled to room temperature and precipitation solution is obtained; the precipitate is washed with the combination of water and petroleum ether, wherein the mass percent of the petroleum ether is 30 wt.%; then the precipitate is washed with deionized water and is filtered, and the product is naturally aired. The invention improves the technology of phase-change energy storage and conservation, and has the function of automatic temperature regulation, favorable physical and chemical stability, crack resistance, flame retardancy, wear resistance and high thermal conductivity.

The invention discloses a device for evaluating the automobile exhaust degradation effect of an OGFC mixture. The device comprises a closed container, an automobile engine, an automobile exhaust analyzer, a track board test piece, and air supplying devices, wherein the air supplying devices are arranged in the closed container. The invention further discloses an evaluation method which comprises the following steps in sequence: preparing the track board test piece, and generating automobile exhaust; simulating the degradation of automobile exhaust on a pavement and testing the concentration of each gas in the automobile exhaust; processing data. The track board test piece is prepared from the OGFC mixture which is added with a photocatalytic material; the evaluation index, used for evaluating the automobile exhaust degradation effect, of the OGFC mixture is taken as the degradation rate. The evaluation device can simulate the automobile exhaust degradation processes of the OGFC mixture in different illumination conditions by controlling the number of ultraviolet lamp tubes. The evaluation method is accurate and reliable, and coincides with the automobile exhaust degradation situation on a real pavement.

The invention discloses a novel organic compound fertilizer. The fertilizer is prepared from following raw materials in parts by weight: 45-50 of livestock manure, 7-9 of silkworm excrement, 20-23 of rice hull, 11-13 of dry pine needle, 20-25 of sawdust, 10-15 of peat, 15-20 of bentonite, 12-14 of natural zeolite, 5-7 of calcium oxide, 2-4 of magnesium oxide, 10-13 of vinasse, 9-12 of a soil activator and a proper amount of water. The fertilizer is prepared from the livestock manure, the sawdust, the rice hull, and other agricultural and sideline products, thus achieving utilization of waste products, increasing the soil fertilizer efficiency and reducing environment pollution. The silkworm excrement is excrement excreted after silkworms eat mulberry leaves, and contains crude proteins, crude fat, crude fiber, soluble nitrogen-free compounds, ash, etc., and is rich in chlorophyll, vitamin E, K pectin, and the like. The dry pin needle is rich in amino acids, vitamins, a plurality of trace elements, and phytocidin and vitamins, and has functions of diseases prevention and disease resistance, wherein the amino acids, the vitamins, and the plurality of trace elements are essential for growth and development of animals. The peat is rich in nitrogen, potassium, phosphor, calcium, manganese, etc., and is capable of improving a soil hardening phenomenon, and the like, enhancing water retention capability, air permeability, and fertilizer retention capability and increasing nutrients, thus improving the product quality and achieving better economic benefit.

The invention provides a polyalcohol solid-solid phase-change composite material. The polyalcohol solid-solid phase-change composite material comprises a polyalcohol solid-solid phase-change material and a resin base material, is capable of avoiding the problems of melt flow and osmotic migration, and has wide phase-change temperature range, big phase-change latent heat, and adjustable phase-change temperature and phase-change latent heat. The invention further provides a method for preparing the polyalcohol solid-solid phase-change composite material. The method can be used for preparing the polyalcohol solid-solid phase-change composite materials with all profiles and good constancy and in all sizes. The preparation technology is simple and free from environment pollution. The polyalcohol solid-solid phase-change composite material of the invention has wide application value in the fields, such as the heat protection of aircrafts, the constant-temperature temperature control of precise instruments, meters and electronic devices, heat barrier coating, solar utilization, recovery of industrial residual heat and waste heat, the energy source of electric peak load shifting and valley filling, material, aerospace, textile, electric power, medical instrument, building and the like.

The invention relates to a preparation method of chitin film. Chitin is added into combined aqueous solution containing NaOH and urea, the aqueous solution is frozen at low temperature, and unfreezing and stirring to be uniform are carried out, thus obtaining chitin solution. The chitin solution is cast on a glass plate and is subject to high temperature gelation, water is used for washing away residual NaOH and urea in film, so as to obtain chitin wet film, and drying is carried out, thus obtaining the chitin film. Glycerine is taken as plasticizer, so as to obtain the glycerine plasticized chitin film. In the invention, dissolution of chitin, gelation, film-forming and plasticizing are all physical processes, and no chemical reaction is taken place. The film can effectively absorb heavy metal ion and has favourable mechanical properties. The method of the invention is simple, operation is convenient, and no pollution to the environment is produced. The chitin film can have wide application prospect in the fields of tissue engineering support material and sewage treatment.

The invention relates to a functional frame-proof fiber and relative preparation, wherein it is characterized in that: it also comprises nanometer additive powder with tourmaline and tourmaline; and its components comprises cellulose at 75-95%; said nanometer additive powder at 5-25%; and its preparation comprises: preparing the tourmaline and tourmaline into nanometer additive powder; mixing the powder with cellulose with different ratios, via static mixer; using fusion mixing method to prepare the spinning liquid. The inventive fiber has lower cost and controllable parameter.

The invention discloses a method for preparing activated carbon by using waste wool, which specifically comprises the following steps of: firstly, cutting waste wool into pieces, heating to 260 DEG C in a tubular reactor under the protection of nitrogen, pyrolyzing for 30min to 60min to form initial carbon with a tubular structure; secondly, evenly mixing the initial carbon and a powdered activator together according to a certain mass ratio, activating the mixture in the tubular reactor at high temperature, heating to 400-700DEG C, and then preserving the temperature for 30-90min, and cooling to the room temperature and taking out; and finally cleaning and drying to obtain finished activated carbon made from waste wool. By the method for preparing activated carbon provided by the invention, the pollution caused by the waste wool is avoided; and simultaneously, based on the special structure of wool, the prepared activated carbon is of a tubular structure and has special performances and purposes; and the pollution is not produced in the whole production method basically, so the production method meets the requirements of clean production and recycling economy, and has great market value and social benefit.

The invention discloses a method for manufacturing environment-friendly ecological tanned lamb skin. The method comprises the following steps: firstly, soaking a raw material lamb skin into water, adding degreasant and sodium carbonate in the soaking process, and removing hair and meat in the water soaking process; putting the lamb skin in water, adding degreasant and sodium carbonate for soaking and removing fat, and removing meat for the second time; putting into water for the second time to soften the lamb skin and removing fur and meat; pickling and softening, and taking out the skin and standing still for two days; tanning, taking out and standing still for two days; performing primary treatment, putting into water, adding syntans, a fatting agent and formic acid, soaking, taking out, standing for one day, performing oxidation washing and reduction bleaching, and finally finishing, thus obtaining a product. When tanned lamb skin is manufactured by using the method, environment pollution can be reduced and relevant maintenance expense for wastewater treatment and the like can be reduced, so that the production cost can be reduced and moreover the manufactured product is excellent in property.

The invention discloses a preparation technology of sponge titanium and a reaction furnace of sponge titanium, and belongs to the field of nonferrous metallurgy technology. The reaction furnace of the invention comprises a reacting pot and a cooling pot. The outside of the inner wall of the reacting pot is fixedly equipped with an electrically heated wire which is connected with a conductive rod. The reacting pot is wrapped with an insulation layer and the furnace wall and the upper part of the reacting pot is communicated with an evacuation tube. The cooling pot is equipped with a cooling water jacket, the upper part of which is communicated with an evacuation tube of the cooling pot. The reacting pot and the cooling pot are fixed respectively by the top heads at two sides and in parallel arrangement, and communicated with a central tube. The central tube is wrapped with an inner heating jacket. The upper part of the cooling pot is communicated with a discharge tube. Simultaneously the invention also provides a preparation technology of sponge titanium by using reaction furnace, the technology has the advantages of changing the problem of serial furnace including the unstable production quality, the large energy consumption, the serious environmental pollution, the large operation intensity of worker and the large workload. Changing the furnace to parallel type and the middle connection of using an inner heating tube has the advantages of the energy conservation, safety and the short reaction time.

The utility model provides an energy-saving and carbon-emission-reducing incense stick comprising an incense stick body and a fabric layer, and the fabric layer covers the outside of the incense stick body. The energy-saving and carbon-emission-reducing incense stick provided is natural, smokeless, non-toxic, and environmentally friendly, and moreover, the incense stick is matched with color to distinguish incense kinds and uses, and to increase external beauty.

The invention discloses an EPDM series environment-friendly type rubber floor sizing material. The EPDM series environment-friendly type rubber floor sizing material is prepared from, by weight, 29%-32% of EPDM rubber, 1.4-1.6% of zinc oxide, 1.1-1.3% of active magnesium oxide, 0.2-0.35% of stearic acid, 0.4-0.5% of an anti-aging agent 445, 1.4-3.2% of titanium dioxide, 0-6.5% of pottery clay, 12-18.5% of a fire retardant FR-880, 18-23.5% of aluminum hydroxide, 4-6.5% of zinc borate, 0-4.6% of a fire retardant BN-18C, 4-6.5% of white carbon black, 0-7.6% of nanometer kaolin, 0-6.5% of calcium carbonate superfine powder, 0.5-0.65% of an antistatic agent, 0.5-0.65% of a dispersing agent, 0.5-0.65% of a flow promoter, 0.4-0.5% of an anti-ultraviolet agent, 0.4-0.5% of an antibacterial agent, 0.5-0.7% of a deodorant, 0.7-0.85% of DCP, 0.4-0.5% of a vulcanizing agent and 0-0.2% of pigment, wherein the total content percentage of the components is 100%. The invention further discloses a preparing method of the sizing material. The problems that in the prior art, a floor material is poor in skid resistance, nonelastic, not waterproof or wearproof or fireproof or antibacterial and high in price, and releases harmful gas or radioactive elements are solved.

The invention relates to a reactive halogen-free flame retardant and a preparation method thereof, belonging to the technical field of flame retardant. The reactive halogen-free flame retardant is represented by the following formula, wherein, R1 and R2 represent respectively independent H, C1-C6 alkyl or phenyl, R3 represents H,C1-C6 alkyl or phenyl, and R4 represents H or C1-C6 alkyl. The reactive halogen-free flame retardant is a flame retardant with a combination of the sour resource, the char resource and the gas resource of an intumescent flame retardant, and comprises polymerisable methacrylate groups. The preparation method has the advantages of simple process, safety, easy operation, and basic no pollution to the environment, and the yield can reach more than 80%. Hydrogen chloride gas generated in the reaction process after being absorbed by bind acid agent has no corrosion to the device. The prepared product is acicular crystals from white to light red, has synergistic effects resulting from nitrogen and phosphorus elements, and has the advantages of no halogen, low toxicity, no pollution and the like.

The invention discloses a folium artemisiae argyi extract air freshener for air sterilization and mosquito repelling. The air freshener contains the following ingredients in percentage by weight: 60-90% of a folium artemisiae argyi extracting solution, 10-40% of pyrethrin and 0.5-2.0% of a solubilizer. A preparation process comprises the following steps: grinding and soaking dried folium artemisiae argyi, and extracting the folium artemisiae argyi through a steam distillation method to obtain two components, i.e., folium artemisiae argyi oil on upper layer and water on lower layer; collecting a mother solution in which distillate contains 0.1-0.15% of folium artemisiae argyi oil, to obtain a folium artemisiae argyi extract; adding the solubilizer and the pyrethrin to the mother solution in percentage by weight, uniformly stirring completely, filtering, inspecting, shading, bottling and sealing to obtain the air freshener. The air freshener disclosed by the invention not only can keep air fresh, deodorize and dispel mosquitoes, but also can inhibit and kill bacteria; the air freshener can function as refreshing as well as preventing epidemic and preserving health; the air freshener is favorable for body health, free from residue and side effect, environmentally friendly and sanitary.

The invention provides a polymorphic hansenula polymorpha mutant strain and application of the polymorphic hansenula polymorpha mutant strain in glutathione biosynthesis. Firstly, low-energy ions N+ serve as a mutagenesis source, mutagenesis treatment for Hansenula polymorpha DL-1 is achieved, a glutathione (GSH) high-producing strain (DL-18) is obtained, the temperature remains 37 DEG C, the speed remains 180 r / min, shake flask fermentation remains for 42 hours, the dry cell weight (DCW) in end products is 7.04 g / L, the total quantity of the GSH is 420.46 mg / L, and the DCW in the end products and the total quantity of the GSH are respectively improved by 1.73 times and 1.94 times compared with the original mutant strain. Hereditary stability of the DL-18 is detected through subculture, yatsushiro is cultivated, content changes of the GSH are not significant, and therefore, the hereditary stability of the mutant strain is high.

The invention belongs to the technical field of meat product preservation methods and discloses a novel fish paste preservative as well as a preparation method and application thereof. The preservative comprises the following raw material substances in parts by weight: 30-70 parts of chitosan, 20-50 parts of tea polyphenol, 15-35 parts of whey protein, 5-15 parts of snakehead mucus, 2-15 parts of needle mushroom polysaccharide and 45-55 parts of water; and the preservative also can comprise 5-10 parts of pitaya stem and leaf juice. The preparation method comprises the following steps: uniformly mixing chitosan, tea polyphenol, whey protein, snakehead mucus, needle mushroom polysaccharide and water by virtue of ultrasonic treatment of ultrasonic waves, carrying out ultra high pressure treatment on the uniformly mixed liquid, and uniformly mixing the solution in combination with micro-jet high pressure homogenization treatment, thereby obtaining the novel fish paste preservative.

The invention relates to a preparation method of an air purifying filtering material, and more specifically discloses a preparation method of a filtering material used for welding fume. The preparation method is used for solving a problem of conventional welder anti-dust respirators that adsorption and dedusting performance is poor. The preparation method comprises following steps: 1, medical stone powder is prepared; 2, medical stone nano-grade particles are prepared; 3, surface modification is carried out so as to obtain surface modified particles; 4, heating blending is carried out so as to obtain a high polymeric compound; 5, carbonization is carried out so as to obtain a carbonization product; 6, melt spinning is carried out so as to obtain medical stone functional fiber; 7, catalytic activation modification is carried out so as to obtain catalytic activation modified medical stone fiber; and 8, spunlace moulding is carried out so as to obtain a medical stone functional filtering material which is the filtering material used for welding fume. The filtering material is taken as a dedusting filtering material.

The invention discloses a method for repairing heavy-metal cadmium polluted soil by using bougainvillea speetabilis plants and relates to a plant stable biological repairing technology for managing the polluted environment. According to the method, bougainvillea speetabilis is mainly planted in a heavy-metal polluted environment, mainly soil; the bougainvillea speetabilis can normally grow and has no any poisoning phenomenon, and a biomass is not reduced; heavy metal is mainly enriched at roots of the plants and the transfer coefficients in the plants are relatively low; and the bougainvillea speetabilis has the characteristics of plants which can be used in the plant stable repairing technology. When the plants are used for repairing the polluted soil, the polluted soil and underground water are managed, and the environment is beautified.

The invention provides a preparation method of coating for a building outer wall. The preparation method comprises the following steps: performing the modification reaction on acrylic elastic emulsion, fluorine-carbon emulsion, polydimethylsiloxane and graphene, then adding a mould-proof algae-control agent, an anti-insect additive, microporous calcium carbonate, modified attapulgite clay, glass beads, high-viscosity attapulgite clay, nano zinc oxide, nano titanium dioxide, a defoaming agent, and a film forming agent, sufficiently and uniformly mixing and dispersing, thus obtaining the coating. The preparation method of the coating for the building outer wall is simple in process, safe and pollution-free; and the prepared coating is not only resistant to abrasion, water, aging and pollution, but also is good in adhesion and mould-proof and anti-insect effect and suitable for popularization and application.

The invention discloses a composite phase-change energy storage material for microcapsules and a preparation method thereof. The coating of the microcapsule is made of silicon dioxide, and the core of the microcapsule is made of a phase-change energy storage material, wherein the phase-change energy storage material is a paraffin organic solid-liquid phase-change energy storage material. 0.2 to 0.5 wt.% of dispersed emulsifier, 52.5 to 62.5 wt.% of solvent water, 18.75 to 31.5 wt.% of phase-change energy storage material and 15.5 to 18.75 wt.% of inorganic silica source are matched and put into a reactor for stirring for 5 to 8 hours; the mixture is uniformly dispersed and emulsified at the temperature 3 to 8 DEG C higher than that for solid-liquid phase change; hydrochloric acid aqueous solution catalyst with the pH value of 0.93 to 4.07 or sodium hydroxide aqueous solution catalyst with the pH value of 8.0 to 12.0 is added into the emulsion; the reacting solution is naturally cooledto room temperature and precipitation solution is obtained; the precipitate is washed with the combination of water and petroleum ether, wherein the mass percent of the petroleum ether is 30 wt.%; then the precipitate is washed with deionized water and is filtered, and the product is naturally aired. The invention improves the technology of phase-change energy storage and conservation, and has the function of automatic temperature regulation, favorable physical and chemical stability, crack resistance, flame retardancy, wear resistance and high thermal conductivity.

The invention discloses a multi-functional pavement sweeping device. The multi-functional pavement sweeping device comprises a vehicle body, a water tank, a garbage housing box, an electric rotating brush, a dust collector, a solar cell, water spraying openings and an engine system, wherein the water tank and the garbage housing box are adjacently mounted on the vehicle body; the electric rotating brush and the dust collector, which are supplied with power by the solar cell on the roof of the vehicle, are mounted at the bottom of the vehicle body; the plurality of water spraying openings are formed in the two sides of the vehicle body; the water in the water tank is sprayed out from the water spraying openings through a water pump; and the engine system is arranged in the vehicle body and used for as power for driving the vehicle body. The multi-functional pavement sweeping device disclosed by the invention has the advantages of simple and practical structure, clean and pollution-free energy, high mobility, large output torque, high adjustability, no pollution and the like and also has functions such as sweeping function, dust collecting function, water spraying function and the like.

The invention discloses an epoxy mortar coating and a preparation method thereof. The epoxy mortar coating special for the waterborne terrace is prepared from a component A and a component B. The component A is prepared from, by mass, 30-50 parts of an epoxy curing agent, 30-40 parts of deionized water, 0.1-0.3 part of an antifoaming agent, 0.1-0.4 part of a dispersing agent, 0.2-0.6 part of a base material wetting agent and 0.5-0.6 part of a leveling agent. The component B is prepared from 85-95 parts of epoxy resin and 5-15 parts of aliphatic glycidyl ether. The component C is prepared from80-100 parts of 80-120 quartz sand and 20-40 parts of 325 Portland cement. The epoxy mortar coating is low in VOC content and good in skid resistance, and a formed paint film is high in adhesive force, extremely high in hardness and excellent in water resistance and solvent resistance.

According to the photovoltaic-pumped storage-terrestrial heat combined development and utilization system for the abandoned coal mine and the construction method, a coal mine underground space reservoir communicates with heat exchange equipment through a water pumping and heat taking well, and cooled terrestrial heat water comes out of the heat exchange equipment and enters a ground subsidence area reservoir through a terrestrial heat water tail water conveying pipe; the ground subsidence area reservoir is communicated with the coal mine underground space reservoir through a recharge power generation channel, a water suction pump is arranged on the water suction heat extraction well, and a hydroelectric generating set is arranged on the recharge power generation channel; a circulating water pipeline is arranged between the heat source utilization end and the heat exchange equipment; a solar panel of the photovoltaic power station is erected above the reservoir in the ground subsidence area; the photovoltaic power station is connected with the water pump through a transmission line; the underground space of the coal mine is an abandoned coal mine goaf or / and a laneway project. Therefore, combined development and comprehensive utilization of multi-energy complementary modes such as solar energy, geothermal energy and underground space energy storage are realized.

The invention provides a high-content bacterium-coated biological fertilizer and solves the problems that the existing biological fertilizer is low in content of organic matters and low in content of beneficial bacteria, the growth requirements of plants cannot be met, and the content of heavy metals exceeds the standard. The high-content bacterium-coated biological fertilizer is prepared from the following raw materials: furfural residue, humic acid, kiln dust, bacillus subtilis, bacillus licheniformis, bacillus mucilaginosus, zinc sulphate monohydrate and boric acid. A preparation method of the high-content bacterium-coated biological fertilizer comprises the following steps: firstly mixing the furfural residue and humic acid, fermenting and decomposing, then adding the kiln dust and microelements and stirring, then pelleting and drying, and finally coating and filling to obtain the high-content bacterium-coated biological fertilizer. The high-content bacterium-coated biological fertilizer has the effects of increasing yield and efficiency, improving soil hardness, inhibiting diseases and insect pests, reducing application quantities of chemical fertilizers and accelerating growth of the plants; when the high-content bacterium-coated biological fertilizer is applied to fruit trees, the fruit trees can bloom regular flowers, the flowers and the fruits can be retained, and the leaf fall period is late; the high-content bacterium-coated biological fertilizer is capable of resisting early spring diseases, preventing and treating premature senescence, resisting lodging, resisting drought and cold and reducing pollution to the environment; the content of the bacteria in the biological fertilizer produced by the method reaches one billion per gram; the content of the organic matters in the biological fertilizer reaches up to 80%.

The invention discloses the breeding technology of beef cattle with selenium-rich beef. A ''Guixi cattle'' beef cattle breed is used, a selenium-rich diet is obtained by a method of adding a selenium-containing amino acid animal nutrient solution into a mixed concentrate fed at the fattening beef cattle stage, and as long as feeding of fattening beef cattle is performed according to a daily feeding method from 25-35 d before slaughter, the selenium content in beef can reach the standard requirement of 0.15-0.50 mg / kg of selenium-rich beef. After feeding the fattening beef cattle with the mixedconcentrate added with the selenium-containing amino acid animal nutrient solution, it is not only beneficial to improvement of disease resistance of fattening beef cattle growth, but also to transformation of selenium and absorption of nutrients in the fattening beef cattle, organic selenium is transformed into selenoproteins through the physiological function of the beef cattle, and the nutritional value and health care function of beef quality are further improved, so that a safe, nutritious and healthy selenium-rich nutrient beef is produced, the selenium-deficient people can supplement the necessary selenium nutrient element for the human body, and thereby the selenium-rich nutrient beef is very beneficial for human health.

The invention discloses a phosphate material for efficiently and selectively removing lead ions from a solution. The material contains strontium and / or barium ions capable of making an exchange with the lead ions; and lead phosphate substances with better stability are generated after the exchange to realize the effect of fixing the lead ions. The material has a saturated extent of adsorption for the lead ions in the solution, which is obviously higher than that in the existing report; and in the presence of interfering ions, such as zinc ions, copper ions, arsenic ions, chromium ions, iron ions and cadmium ions, the selectivity is effective even for removing the lead ions at a very low concentration. In addition, the performance for removing the lead is a little affected by the temperature and the pH of the solution; and the phosphate material which is convenient in operation and strong in practicability is a novel and excellent material for selectively removing the lead ions.

The invention discloses an antibacterial breathable film capable of being composted and degraded as well as a preparation method and application of the antibacterial breathable film. The breathable film comprises biodegradable plastic, inorganic filler subjected to surface treatment, a macromolecular coupling agent of a bio-based carrier, a dispersing aid, an antibacterial master batch, an antioxidant and a fluorine-containing polymer processing aid. The uniformity of the air permeability (water vapor permeability) of the degradable breathable film can be effectively improved by compounding the nano calcium carbonate and the superfine calcium carbonate, and the prepared breathable film is completely degraded within 3-6 months in a compost state, does not cause any pollution to the environment, and has the social benefits of low carbon, environmental protection, reduction of environmental pollution and the like; and under the storage conditions of drying, moisture-proof sealing and normal temperature, the shelf life of three years can be ensured.

The invention relates to an inner support device of a basement precast slab mold and a construction method. The device is used for supporting between a first precast slab and a second precast slab oppositely arranged; the first precast slab and the second precast slab are vertically arranged on the edge of a basement cushion layer; and the inner support device of the basement precast slab mold comprises at least one first stand column vertically arranged in a basement and bonded on the first precast slab, at least one second stand column vertically arranged in the basement and bonded on the second precast slab, at least one first hinge piece fixed on the first stand column, at least one second hinge piece arranged corresponding to the first hinge piece and fixed on the second stand column, and at least one support pipe capable of adjusting the length, connected between the first hinge piece and the second hinge piece and supported between the first stand column and the second stand column. The device is convenient in disassembly and capable of recycling.

The invention discloses a method for preparing a functional material. The method comprises thefollowing steps of adding Schiff base and Anderson type polyacid Na3[AlMo6O24H6]NH4.10H2O in the volume ratio of 1 to 1 into a conical flask for reaction, and reacting to generate a great amount of brown precipitates; secondly, stirring the generated precipitates at normal temperature by an electromagnetic stirrer for 12 hours, then filtering the precipitates, washing the precipitates in the volume ratio of 1 to 1 of water, methyl alcohol and DMF to dichloromethane; then stirring filtrate by the electromagnetic stirrer at normal temperature for 12 hours, and filtering; and then sealing and storing the filtrate, and sealing for 2-3 days, thereby obtaining large-size massive crystals. According to the method, the defects of rigorous reaction conditionsofa great amount of organic and inorganic composite monocrystalmaterials under normal conditions and small crystal body size at present are remedied; the novel synthesis path of mild reaction, easiness in control, energy conservation and low pollution is developed; additionally, the composite materialcan be used for further improvingthephotocatalytic efficiency of a traditional polyacidprecursor, and has a good application prospect oftheinnocent treatment of organic pollutants.