334results about How to "Purify" patented technology

The invention discloses a composite porous activated carbon flue gas adsorbent which is characterized by comprising the following raw materials in parts by weight: 98-105 parts of shell activated carbon, 36-40 parts of diatomite, 2-3 parts of sodium metasilicate, 2-3 parts of rosin, 2-3 parts of VAE emulsion, 2-3 parts of polyvinyl alcohol, 1-2 parts of sodium alcohol ether sulphate, 1-2 parts of sodium citrate, 1-2 parts of gypsum residue, 2.5-3.5 parts of pulverized fuel ash, 4-5 parts of edible corn starch, 2-3 parts of lanthanum nitrate, 9-12 parts of glass fiber powder, 4-6 parts of adsorption aids and a proper amount of water. The composite porous activated carbon flue gas adsorbent disclosed by the invention is reasonable in formula, viscous matters such as polyvinyl alcohol and edible corn starch are added, the toughness and strength of the activated carbon are improved, and the service life is prolonged; and due to the addition of the adsorption aids, the adsorbent has special porosity, the contact time between gas and the adsorbent is prolonged, and the effects of inhibiting bacteria and purifying the air are achieved. Therefore, the adsorption efficiency is high, the production process is simple, and the adsorbent is suitable for industrial dry desulfurization, automobile exhaust desulfurization and daily air purification.

The invention provides riverway water quality purification and ecosystem restoration adjustable wetland technology, which comprises that: a rubber dam with adjustable height is arranged in a riverway; potamogeton plants are planted at the upstream of the rubber dam of the riverway to form artificial wetland; the planting density of the potamogeton plants is between 20 and 30 clusters / m, and a cluster is between 3 and 4 plants; the retention and purification time of river water in the artificial wetland is adjusted by adjusting the height of the rubber dam, the height of the rubber dam is improved in normal and dry seasons to store water to make the water level at the upstream of the rubber dam of the riverway improved, and the adjusting height of the rubber dam is determined by the COD concentration of the river water at the inlet of the artificial wetland and the temperature of the river water. By planting the potamogeton plants in the riverway to form the wetland, instead of lifting the water onto land to construct an artificial wetland, the technology can more directly and effectively restore the damaged riverway ecosystem, improve the water quality of polluted river water, and can ensure normal flood discharge of the riverway in flood season.

A aluminum alloy material consists of Si 9.5-11.5wt%, Cu 2.0-3.0wt%, Mg 0.3-0.4wt%, mixed rare earth RE 0.1-0.3wt%, Mn is less than or equal to 0.5, Zn is less than or equal to 1.0, Fe is less than or equal to 1.0, Al residue. The mixed rare earth RE consists of La 5-80wt%, Ce 5-40wt%, Nd 1-20wt%, Y 1-20wt%, Pr 1-20wt%. It achieves good flowing, mechanical and cutting machining performance.

The invention relates to a preparation method of high-conductivity aluminum alloy and belongs to the field of nonferrous metal materials. The preparation method comprises the following steps of: preparing an aluminum ingot comprising the following alloy elements in percentage by weight: 4.5 to 13.5 percent of Si (silicon), 0.1 to 1.5 percent of Mg (magnesium) and not more than 0.1 percent of impurity elements, smelting the aluminum ingot in a furnace, adding 0.1 to 0.3 percent of zirconium which serves as additive for the alloying treatment, uniformly mixing, then adding 0.1 to 1.35 percent of rare-earth element for degeneration, purifying, degassing and deslagging, and covering the surface of aluminum liquid with a solid covering agent; casting to prepare the aluminum alloy conductor material; and carrying out the first-stage aging treatment and the second-stage aging treatment on the aluminum alloy conductor material, discharging and cooling with air. The manufactured aluminum-silicon alloy can meet the requirements on the aluminum alloy material conductivity and the mechanical property; and moreover, the preparation process is simple, the cost is low, and the mass production is easy to realize.

The present invention relates to a plant growth device on water. Said device is formed from floating carrier and supportinb body, in which the described floating carrier is equipped with horizontal frame and vertical frame which are fixedly and tightly connected. The described vertical frame is equipped with closed float whose height can be changed for regulating load capacity or the described floating carrier. Between horizontal frames the supporting strips are set for strengthening connection between horizontal frames. The described supporting body can be fixed on the described floating corrier, said supporting body is equipped with nesh-bag in which the filler is held. Under the condition of having no soil it can make plant normally grow on-water.

The invention provides a titanium and aluminum based alloy powder material for additive manufacturing. The titanium and aluminum based alloy powder material is prepared from the following raw materials in percentage by atom: 47 to 56 percent of Al, 1.6 to 2.3 percent of Cr, 1.6 to 2.0 percent of Mo, 0.6 to 1.2 percent of TiB2 and the balance of Ti and unavoidable impurity. In addition, the invention also provides a method for preparing the alloy powder material. The method comprises the following steps of I, protecting the inner wall of a graphite flow guiding pipe by adopting a ceramic flow guiding inner core; II, preparing high-temperature-preventing carbonized coatings at the end surfaces of the graphite flow guiding pipe and then loading the graphite flow guiding pipe into a smelting chamber; III, preparing an ingot blank by adopting vacuum self-consuming arc smelting; IV, smelting to prepare an alloy melt by adopting a water-cooled copper crucible; V, carrying out atomization treatment, so that the titanium and aluminum based alloy powder material for the additive manufacturing is obtained. The alloy powder material is an alloy system designed for the additive manufacturing process and various properties of a product manufactured through the additive manufacturing technique by adopting the alloy powder material can reach expected effects.

The invention relates to a vertical indoor air cleaner capable of highly effectively removing volatile organic gas, comprising a shell; the shell is composed of an ozone oxidizing chamber, a photocatalysis reaction chamber and an absorption chamber from bottom to top in sequence; the ozone oxidizing chamber is provided with an oxidization ultraviolet lamp; the lower part of the oxidization ultraviolet lamp is provided with filtration layers; the photocatalysis reaction chamber is internally provided with a photocatalysis ultraviolet lamp; the upper part and the lower part of the photocatalysis ultraviolet lamp are both provided with photocatalysis sieves; the absorption chamber is internally provided with absorption layers; the top of the shell is provided with an air outlet, the lateral side of the lower part thereof is provided with an air inlet; the air inlet is connected with the internal space of the shell at the lower part of the filtration layers; photocatalyst sieves are coated with nano titanium dioxide catalyst, blocky activated carbon cellucotton is preferably selected as the absorbing material. The air cleaner features simple structure, convenient adaptation and very high purifying rate of volatile organic gas and is mainly applicable to the indoor air pollution control.

The invention provides preparation of a waste water treating agent by using active calcium silicate and a treatment method for papermaking waste water, belonging to the technical field of environment protection. The waste water treating agent comprises, by weight, 60 to 98 parts of active calcium silicate, 0.5 to 40 parts of an inorganic flocculating agent and 0.01 to 0.5 part of an organic polymeric flocculant. The above-mentioned components are blended in a composition modification device so as to prepare the waste water treating agent. The treatment method for papermaking waste water comprises the following steps: adding the treating agent accounting for 0.2 to 2% of the weight of waste water to be treated into the papermaking waste water; stirring the waste water for 5 to 30 min so as to realize adsorption treatment; stopping stirring and carrying out standing for 5 to 30 min; and subjecting the treated waste water to solid-liquid separation, wherein separated water can be used as water for pulping and paper making, and separated solids can be used as a paperboard filling material after purification. According to the invention, an application scope of active calcium silicate is broadened, comprehensive utilization of resources is realized, investment and operation cost of a waste water treatment facility is greatly reduced, and the treatment method is especially applicable to medium-sized and small enterprises.

The water purifier for deeply treating tap water through filtering, purifying, mineralizing, activating, alkalifying and softening consists of one mineralizing tray and filtering element. The filtering element includes successively arranged active carbon layer, small Chinese medicinal stone grain layer, Chinese medicinal stone-ceramic ball layer, tourmaline-ceramic ball layer and calcium sulfite ball layer. Inside the mineralizing tray, is the mixture comprising large Chinese medicinal stone grain 50-60 weight portions, tourmaline 15-20 weight portions, magnetite 8-10 weight portions and composite tourmaline material 5-8 weight portions. The purified water can promote metabolism, neutralize acid metabolites in body, eliminate free radical, prevent diseases and result in other health functions.

The invention provides a method for combining soilless culture of strawberries with high-density aquiculture of snakeheads and relates to the technical field of agriculture. An organic ecological soilless culture system is established outside a snakehead aquiculture pond, is used for planting strawberries or other fruits and vegetables and is connected with the snakehead aquiculture pond through an underground water circulating pipeline, water in the snakehead aquiculture pond is continuously purified under the purifying effect of soilless culture media, nutrients are provided for the fruits and the vegetables by using the large quantity of snakehead excrement, the culture media are used for purifying aquiculture water, a pond still water aquiculture mode is changed to be a running water aquiculture mode and the cyclic utilization of water resources is realized. Since the water in the pond is continuously purified under the purifying effect of the soilless culture media, the nutrients are provided for the fruits and the vegetables by using the large quantity of snakehead excrement, the culture media are used for purifying aquiculture water, the pond still water aquiculture mode is changed to be the running water aquiculture mode, the pond aquiculture goals of cyclically utilizing the water resources, saving the energy, protecting the environment and achieving sustainable development are realized.

An air purifier for indoor ventilation purification and circulation purification comprises an air purifier box, an outdoor air duct, an outdoor air inlet, a room A return air inlet, an indoor return air inlet, a room A air supply outlet, a mixed-air duct, a fan, a purifier I and a purifier II. The air purifier for the indoor ventilation purification and the circulation purification is characterized in that a room B return air inlet and a room B air supply outlet can be further arranged apart from the room A return air inlet and the room A air supply outlet; the outdoor air duct is connected with the outdoor air inlet, the room A return air inlet and the room B return air inlet are communicated with the indoor return air inlet, one side of the mixed-air duct is connected with the outdoor air inlet and the indoor return air inlet, the other side of the mixed-air duct is connected with one side of the purifier I, the other side of the purifier I is connected with one side of the fan, the other side of the fan is connected with one side of the purifier II, and the other side of the purifier II is connected with the room A return air supply outlet and the room B air supply outlet. The air purifier can be connected to a temperature and humidity regulator, so that the whole indoor air can meet comfort requirements for purification, oxygen enrichment and moderate temperature and humidity.

The invention relates to an antibiosis fabric making method, in particular to an antibiosis fabric making method which adopts specialized nanometer material as additive. The invention adopts the following procedures that: (1) the addition of nanometer particles: nano-sized titanium dioxide particles and argentine particles are added to dye or bleacher and fully mixed; (2) the fabric is dyed and bleached by the fully mixed dye or bleacher under the high-temperature condition. The fabric achieved by the invention has the functions of long lasting antibiosis, deodorization, ultraviolet resistance, etc. The invention is suitable for clothes, undergarments, hoses, towels, bath towels, facemasks, napkins, knitting, home textile, etc.

The invention discloses an antibiotic-free feed for fattening pigs, belonging to the technical field of feeds. The antibiotic-free feed comprises a feed used during a fattening period and a feed used before slaughter, wherein the feed used during the fattening period is prepared from the following materials by weight percent: 54-58 percent of corn, 17-19 percent of soybean meal, 10-14 percent of wheat germ, 8-10 percent of wheat middling, 1 percent of composite additive, 3 percent of premixed materials and 1 percent of trace elements; and the feed used before slaughter is the feed used during the fattening period without adding the trace elements. By adopting the feed, the application of antibiotics can be avoided, the metal level in the produced pork is greatly reduced, the meat color score is improved by 14.55 percent, the marbling score is improved by 9.09 percent, the fat content in muscle is improved by 21.05 percent, and the rate of water loss is reduced by 32.98 percent. By using the feed provided in the invention, the daily gain and the survival rate of the fattening pigs are significantly increased, the feed conversion ratio is reduced, the body weight for slaughter is increased, and feeding days and age in days for slaughter are significantly reduced. In addition, the preparation method disclosed in the invention is simple, and the production cost is low.

Copper-chromium-zirconium alloy is characterized by being prepared from the following raw materials in percent by weight: 0.2-1.2% of chromium, 0.05-0.2% of zirconium, 0.06-0.10% of magnesium, 0.05-0.5% of scandium and the balance of copper. The invention further provides a preparation method of the copper-chromium-zirconium alloy. The preparation method sequentially comprises the following steps:(1), proportionally preparing copper, chromium, zirconium, magnesium and scandium elements, performing vacuum smelting, and performing split casting to obtain a casting blank; (2), performing homogenizing treatment and hot extrusion on the casting blank to obtain a bar blank; (3), performing solid solution treatment to the bar blank; (4), performing cold deformation processing on the bar blank obtained after the solid solution treatment; (5), performing aging treatment to a material obtained after the cold deformation processing to obtain the needed copper-chromium-zirconium alloy. The copper-chromium-zirconium alloy has high tensile strength, high electrical conductivity and high elongation and has relatively high high-temperature tensile strength and excellent comprehensive performance.

The invention discloses a wear-resisting and high-hardness flux core wire. The wear-resisting and high-hardness flux core wire is composed of a flux core and a low-carbon cold-rolling steel tape sheath wrapped on the outer side of the flux core. The flux core comprises, by weight, 20-25 parts of low-carbon ferrochromium, 1.5-3 parts of titanium powder, 1-2 parts of nickel powder, 5-8 parts of calcium-silicon alloys, 2-4 parts of magnesium-aluminum alloys, 3-5 parts of electrolytic manganese, 1-2 parts of ferromolybdenum, 2.5-4 parts of ferroniobium, 1-2 parts of ferrovanadium, 3-5 parts of rare earth iron alloys, 3-5 parts of carbonate, 3-4 parts of graphite, 120-150 parts of iron powder, 0.5-1.5 parts of tungsten powder and 2-4 parts of calcium fluoride. The wear-resisting and high-hardness flux core wire has good welding performance, deposited metal tissue is compact, air holes and cracks are avoided, combination with base metal is good, performance is stable, and deposited metal has good wear resistance, corrosion resistance, high hardness and other performance.

The invention discloses a method for utilizing industrial wastes to produce microbial grease by means of fermentation and a special strain Rhodotorula glutinis Rh.g CGMCC No.2258. The method of the invention is a method for utilizing the industrial wastes (such as waste water of industrial production like starches, monosodium glutamate, paper making and so on, and / or fermentation industrial residues like soya residues and so on) as culture media to produce the microbial grease through fermentation of the Rhodotorula glutinis; the microbial grease obtained by the method also can be taken as material lipid to prepare biodiesel, and conversion rate can reach 80 to 99 percent. The production method of the microbial grease has the advantages of simple operation, low cost and high use value, and not only pollution of high concentration wastes which are discharged by fermentation industries like starches, monosodium glutamate, paper making, soya residues, etc. on the environment can be reduced but also the wastes can be converted into treasures by using the wastes to produce the grease which is a product in short supply in the current market, thereby the aim of resource utilization of the wastes is reached.

The invention relates to a method for preparing toughened 24 CrNiMo alloy steel through a selective laser melting technology. The method is characterized in that 24CrNiMo / CeO2 composite powder with a determined mass ratio and a uniform phase is prepared through mechanical ball-milling; and an alloy steel component is quickly formed layer by layer according to a predetermined selective laser melting path and process parameters. Through actions of refining crystalline grains, purifying a molten pool and the like in the laser molten pool through CeO2, samples which have small structures and are free of obvious defects such as cracks and pores are formed; and a selective laser melting process with large power, a great powder paving thickness and lower scanning speed is adopted, so that the forming rate is increased. A 24CrNiMo alloy steel component has room-temperature tensile strength of 10000 MPa level, and has ductility of 20-26%, so that strength and toughness of 24 CrNiMo alloy steel prepared by the selective laser melting technology are improved. The method is mainly applied to laser additive manufacturing of a 24 CrNiMo alloy steel high-speed railway brake disc.

The invention discloses a negative oxygen ion functional coating, a preparation method and an application, comprising 3 to 5 parts of tourmaline powder, 1 to 3 parts of graphene oxide, 1 to 2 parts of nano-titanium oxide, 15 to 20 parts of gypsum powder, and diatom powder 30-50 parts of at least one of clay or montmorillonite, and 10-20 parts of at least one of styrene-acrylic emulsion, pure benzene emulsion or water-based polyurethane. The preparation process of the paint raw material of the present invention is simple, and only needs to be pulverized and ground to a specified fineness; the painting process is simple, and no large-scale engineering construction equipment is required; while improving the durability and decoration of the expanded perlite external wall insulation board, it also It can release negative oxygen ions, play the ecological effects of haze reduction, sterilization and air purification, etc., and enrich the performance of the external wall insulation board material; it is prepared into a water-based paint, which has green environmental protection and energy-saving effects compared with traditional oil-based paints; the present invention The produced coating releases a negative oxygen ion concentration of 6000Ions / cm within 14 days 3 above.

The invention discloses a composite culturing device and method suitable for an urban household.The culturing device comprises a fishpond and a soilless cultivation plantation bed located above the fishpond; an inclined plane and a containing cavity are formed in the fishpond, and a connecting pipe, a pump, an output pipe and a water return pipe are connected between the containing cavity and the soilless cultivation plantation bed; an overflow opening is formed in the upper edge of the soilless cultivation plantation bed, and the inner diameter of the water return pipe is smaller than that of the output pipe; cover plates are arranged on the soilless cultivation plantation bed in a covering mode; solar panels are arranged on the cover plates, the outer surface of the fishpond and the outer surface of the soilless cultivation plantation bed, the solar panels are connected with an accumulator, and the accumulator is connected to the pump through a controller.The culturing method comprises the steps that water in the fishpond is pumped into the soilless cultivation plantation bed through the pump, and water is purified in the soilless cultivation plantation bed and flows back into the fishpond.According to the composite culturing device and method suitable for the urban household, residual bait and excrement of aquatic animals are decomposed through water circulation and microorganisms, nutrient is provided for plants, and the water flowing back into the fishpond is purified through plant root systems and the action of the microorganisms.

The invention discloses an effluent recyclable type ecological pond purification system, comprising an ecological pond, wherein the ecological pond is provided with a water inlet and a water outlet, the water outlet of the ecological pond is connected with a water inlet of a farmland by virtue of a back-irrigation ditch, the farmland is provided with a water outlet, the water outlet of the farmland is connected with the water inlet of the ecological pond by virtue of a first drainage ditch, the water inlet of the ecological pond is provided with a first inlet check gate, the water outlet of the ecological pond is provided with a water pump and an automatic water quality monitoring instrument, and the water outlet of the ecological pond is connected with a second drainage ditch which is provided with an outlet check gate; the water inlet of the farmland is connected with a farmland irrigation ditch which is provided with a third inlet check valve; and one end, connected with the farmland, of the back-irrigation ditch is provided with a second inlet check valve. The system disclosed by the invention is less in investment, good in treatment effect, high in ecological benefit and convenient in maintenance management, and is applicable to a sewage cycling treatment recycling system.

The invention provides a device and method for molten iron ultrasonic treatment on an industrial casting site. The device is composed of a smelting device, a nodulizing ladle, a transferring device, an ultrasonic treatment device and a pouring device. Furnace burden is smelted through a smelting device, molten iron obtained after nodulizing is obtained in the nodulizing ladle by means of the nodulizing process. The nodulizing ladle is transferred to the position below the ultrasonic treatment device through the transferring device, the ultrasonic treatment device downwards move to enable an ultrasonic treatment device probe to go deep into the position 30 mm to 500 mm below the liquid face of melt in the nodulizing ladle for conducing ultrasonic treatment device on the molten iron, ultrasonic technological parameters are adjusted, cavitation bubbles will be generated in the metal melt, and the stirring effect is achieved. Meanwhile, crystal nucleuses are formed nearby the cavitation bubbles, and therefore the texture is refined. By means of the method and device, in cooperation with the actual conditions on the industrial casting site, ultrasonic treatment is applied to a production line more conveniently and quickly, batch processing is facilitated, and the excellent nodular cast iron mechanical property is obtained.

The invention provides a high-temperature-tolerance far-infrared coating as well as a preparation method and application thereof. The high-temperature-tolerance far-infrared coating is prepared from the following components in parts by weight: 20-60 parts of adhesives, 30-45 parts of chromium oxide green powder, 0.1-10 parts of silicate mineral powder, 0.01-2 parts of silane coupling agents, 1-4 parts of glycerinum and 15-35 parts of water. The high-temperature-tolerance far-infrared coating is stable in system and convenient to use; the coating is coated on the surface of a heating device and is gradiently heated and cured to form a far-infrared radiation coating; the coating is capable of radiating wavelength of 6-14 microns and is also capable of permanently releasing negative ions; meanwhile, the formed coating is stable in quality and low in possibility of falling off from the heating device when the coating is heated for a long time; the temperature tolerance of the coating can reach 800 DEG C or more.

The invention discloses an air purifier, and belongs to the technical field of air purification devices. The air purifier comprises a box base provided with an accommodating cavity, a fan, a printed circuit board, a high energy ion generator, an ion tube provided with an inner electrode and an outer electrode, a power plug, a power switch, and a box cover; one end of the box base is fixed with a first side cover, and the other end of the box base is fixed with a second side cover; air inlets communicated with the accommodating cavity are distributed on the second side cover; the fan is arranged at one end of the accommodating cavity; the printed circuit board is fixed at the other end of the accommodating cavity; the high energy ion generator is arranged on the printed circuit board and is electrically connected with the printed circuit board; the ion tube is arranged on the high energy ion generator; the inner electrode is electrically connected with an output positive pole of the high energy ion generator; the outer electrode is electrically connected with the printed circuit board; the power plug and the power switch are fixed on the box base and are electrically connected withthe printed circuit board; the box cover is matched with the box base, and is provided with air outlets communicated with the accommodating cavity; and the printed circuit board is electrically connected with the fan. The air purifier has the advantages of convenience in use, low price, contribution to guaranteeing human health, energy conservation and simple structure.

The invention relates to a method and device for utilizing catalyst in the ethylidene norbornene isosynthesis technology, and provides the method for utilizing the catalyst in the ethylidene norbornene isosynthesis technology. The method comprises the steps that a multi-level stirring reaction kettle set is composed of two or more stirring reaction kettles connected in series; fresh vinyl norbornene raw materials continuously enter a reaction system to be reacted through the first-level stirring reaction kettle in the multi-level stirring reaction kettle set, the obtained ethylidene norbornene passes through grading whirlcones arranged among the multiple levels of stirring reaction kettles in the multi-level stirring reaction kettle set, liquid and solid separation is carried out on the obtained ethylidene norbornene , and then continuous discharging is carried out through the last-level stirring reaction kettle in the multi-level stirring reaction kettle set; the fresh catalyst continuously enters the reaction system through the last-level stirring reaction kettle to be involved in the reaction and enters the grading whirlcones arranged among the multiple levels of stirring reaction kettles in the multi-level stirring reaction kettle set, liquid and solid separation is carried out on the fresh catalyst, and then the fresh catalyst is discharged out of the first-level stirring reaction kettle.

The invention relates to a boiler flue gas purifying and heat exchanging device. The boiler flue gas purifying and heat exchanging device comprises a boiler, a flue gas purifying chamber, a first heat exchanger, a second heat exchanger and a reverse osmosis membrane set, wherein the boiler is communicated with a flue inlet in the flue gas purifying chamber through a flue gas pipeline, a flue gas outlet in the flue gas purifying chamber is communicated with the second heat exchanger, a liquid outlet in the flue gas purifying chamber is communicated with the first heat exchanger, the first heat exchanger is communicated with the reverse osmosis membrane set, and the reverse osmosis membrane set is communicated with a liquid inlet in the flue gas purifying chamber; the flue gas purifying chamber comprises a casing, a flue inlet pipe, a DC power supply, a negative electrode, a positive electrode, an activated carbon layer and a flue exhausting pipe; circulation liquid is stored in the casing; a coil pipe is arranged on the first heat exchanger, a heat exchanging flue pipe is arranged on the second heat exchanger, and an outlet in the heat exchanging flue pipe is communicated with a chimney. According to the boiler flue gas purifying and heat exchanging device disclosed by the invention, when flue gas is purified through the flue gas purifying chamber, the circulation liquid in the flue gas purifying chamber directly performs heat exchange with the flue gas; the circulation liquid is in direct contact with the flue gas, so that the heat exchanging efficiency is high, and the heat loss is low.

The invention relates to a decoration sculpture and a decoration plate, in particular to a salt sand sculpture and a salt sand plate which have effects of salt therapy and health protection, and a preparation method for the salt sculpture and the salt sand plate. The salt sand sculpture and the salt sand plate are formed by the following steps of: adding a binding agent into natural salt sand which is taken as main raw materials to prepare salt sand mortar, pouring the salt sand mortar into a prefabricated mould, naturally curing, and stripping the mould. The salt sand sculpture and the salt sand plate are firm and durable, and have the disinfection and sterilization effects, and the effect of improving air environment. The salt sand sculpture and the salt sand plate keep both original crystalline shape and characteristics of salt, and a semitransparent effect of the salt. The salt sand sculpture can be matched with lamp light so as to be made into various salt sand sculpture lamps. The salt sand plate is used for various places, and has the effects of purifying air and the effects of salt therapy and health protection.

The invention provides a rural domestic sewage manual wetland system and a purification method. The system comprises at least one wetland bed formed with red bricks and straw as filler. The grain sizes of the filler gradually decrease from bottom to top. According to the method, domestic sewage is purified through the wetland beds formed with the red bricks and the straw as the filler. The grain sizes of the filler gradually decrease from bottom to top. Domestic swage is distributed on the upper portions of the wetland beds, and purified water is obtained at the bottoms of the wetland beds. By means of the system and the method, rural domestic sewage can be purified, rural abandoned straw and construction waste are adopted as wetland matrix, the price is low, but the sewage purification effect is good.

The invention discloses a damp-proof mildew-proof wall used for a building. The wall comprises a wall basic body, a negative ion coating, an inner wall wallboard and an air layer A are sequentially arranged from outside to inside on the right side of the wall basic body, a heat-preservation layer, an anti-crack adhering layer, a damp-proof layer, an air layer B and a veneer are arranged from inside to outside on the left side of the wall basic body, the upper side and the lower side of the air layer are connected with a circulating pipeline, the part, on the lower side of the air layer, of thecirculating pipe is provided with a temperature gauge used for measuring gas temperature in the circulating pipeline, a heater is further arranged on the circulating pipeline and used for heating gasin the circulating pipeline, the heater is further connected with an air inlet pipe which is communicated with the circulating pipeline, the air inlet pipeline is provided with an air pump A, the part, on the upper side of the air layer, of the circulating pipe is provided with an air pump B, and a pressure gauge is arranged on the circulating pipeline and used for measuring pressure in the circulating pipe. The wall can realize dehumidification and mildew prevention and can be protected, and meanwhile indoor air can be purified.

The invention provides a tantalum ring and a preparation method thereof, a sputtering device comprising the tantalum ring and an application thereof. The tantalum ring comprises a ring part and patterns arranged on the surface of the ring part, and the patterns are in a conical pit shape, the conical pit-shaped patterns have a large specific surface area, when the conical pit-shaped patterns are applied to a sputtering process, a large amount of sputtering source can be attached on the conical pit-shaped patterns, and a better adhesion force is provided; in addition, the patterns present a conical pit shape, the tops of the conical pits face the interior of the ring part, the bottoms of every two adjacent conical pits are connected, a plane-shaped structure is presented but not a structurewith a pointed end, therefore, the phenomenon of point discharge occurring in a power-on process can be avoided, so that the service life of the tantalum ring is prolonged. The preparation method ofthe tantalum ring is simple, only the knurling treatment is needed, surface sharpening treatment is not needed, and it is ensured that on the premise that the obtained tantalum ring has better adsorption power and adsorption capacity on the sputtering source, and the situation of the point discharge is avoided as well.

The invention provides a control method and a device of an air conditioner and the air conditioner and a computer readable storage medium. The control method comprises the steps of detecting air indexparameters of fresh air which flows in an air intake assembly; controlling to spray and purify the fresh air according to the air index parameters, wherein the air index parameters include the concentration of dust particles and / or the concentration of a specified type of noxious gas, and the specified type of noxious gas is dissolved in liquid. According to the control method, on one hand, various pollutants can be purified at the same time, a humidification function is realized, automatic purification of the fresh air is realized, and the cleanliness of an operating area of the air conditioner is guaranteed; on the other hand, the fresh air is purified by utilizing the structure of the air conditioner, and consumables do not need to be replaced, so that the repeated removal of the air conditioner is avoided, the service life of the air conditioner is prolonged, secondary pollution is not generated, and the environmental requirements are met.