124results about How to "With adsorption function" patented technology

The invention discloses nano biological filler for purifying aquaculture wastewater in a biological filter tank and a preparation method of the nano biological filler. The biological filler comprises an EM rejuvenation solution and an adsorption carrier of the EM rejuvenation solution, wherein the EM rejuvenation solution is a product obtained by performing mixed fermentation on an EM stock solution, molasses and deionized water; the adsorption carrier is obtained by performing mixed pressing on composite nano powder, kaolin powder and modified bentonite; the composite nano powder is a product obtained by performing mixing and high-temperature sintering on nano-level aluminum oxide, titanium dioxide and silicon dioxide; modified bentonite is prepared from sodium diethyldithiocarbamate modified original soil. The preparation method comprises the following steps: pressing adsorption carrier particles; fermenting to obtain the EM rejuvenation solution; dipping the EM rejuvenation solution by using the adsorption carrier to obtain the nano biological filler. The obtained nano biological filler is high in pore volume, high in cell adsorption capacity, large in specific surface area and strong in stability, has a good treatment effect on aquaculture sewage, and can be used for rapidly removing ammonia nitrogen, phosphorus and heavy metal ions in an aquaculture water body.

The invention relates to an ionic liquid precursor and a mesoporous material for supporting the ionic liquid precursor, synthesis and application. A preparation method comprises the following steps of: 1) synthesizing the ionic liquid precursor; 2) synthesizing the mesoporous material for supporting the ionic liquid precursor; and 3) acidizing or alkalifying the synthesized mesoporous material for supporting the ionic liquid precursor according to the requirements so as to obtain a target product. The loading capacity of the mesoporous material for supporting the ionic liquid precursor is relatively adjusted, and a mesoporous material for supporting functionalized ionic liquid can be obtained by further acidizing or alkalifying the material according to the requirements. The amount, strength of acid and alkali, properties, variety and the like of ionic liquid supported on the material are adjustable, so that the material can meet the demand of application such as various acid and alkaline catalytic reactions, chemical adsorption and separation and the like. By the material, the using amount of the ionic liquid is greatly reduced, the better catalytic effect is achieved when the material is applied to aldol condensation reactions, and the recycling of a catalyst can be realized. The kind of material is expected to be used for catalyzing more chemical reactions, and may be applied in the fields of adsorption, separation, ionic conductance and the like.

The present invention relates to a wood pulp nonwoven fabric for manufacturing filter tip of cigarette. Said invention uses wood pulp fiber and high-melting point synthetic fiber or / and artificial fiber as raw material and adopts air laying mode to make them into fiber web, then utilizes adhesive to make crosslinking reaction so as to obtain the invented nonwoven fabric for manufacturing filter tip of cigarette.

The present invention is continuous water milling production process of extracting buckwheat starch, buckwheat protein, flavone and dietary fiber. Buckwheat is water soaked, milled into milk and separated in a horizontal sieve to obtain buckwheat slurry and buckwheat dreg; buckwheat slurry is separated continuously to obtain buckwheat starch-I, buckwheat starch-II, buckwheat protein-I, buckwheat protein-II and buckwheat protein-III; and buckwheat dreg is separated to obtain buckwheat protein-IV, flavone and dietary fiber. The present invention obtains eight kinds of product with high additional value from buckwheat, and the production process has less investment, high production efficiency, low cost, no environmental pollution and other advantages.

The invention discloses a preparation method and application of functionalized polyvinyl alcohol microspheres. The preparation method comprises the following steps: uniformly mixing polyvinyl alcohol microspheres, epoxy chloropropane and a hydrochloric acid solution, carrying out a stirring reaction for 1-5 hours in a water bath, and carrying out centrifuging, water cleaning and drying for later use after the reaction; uniformly mixing the obtained chloridized polyvinyl alcohol microspheres, tetrabutylammonium bromide, ethidene diamine and a sodium hydroxide solution, carrying out the stirring reaction for 4-10 hours in the water bath, and carrying out the centrifuging, ethanol cleaning and the drying for later use after the reaction; and uniformly mixing the obtained aminated polyvinyl alcohol microspheres with 2-(2-pyridine) azo-resorcinol, formaldehyde and distilled water, stirring for 6-18 hours in the presence of nitrogen, and carrying out the centrifuging, the ethanol cleaning and the drying after the reaction, so as to obtain an end product. The functionalized polyvinyl alcohol microspheres provided by the invention can be used for chelating heavy metal and detecting and processing divalent heavy metal ions in wastewater and have the characteristics of simple preparation condition, low cost, short detection response time and high adsorption capacity.

The invention relates to an expanded graphite zinc oxide composite photocatalyst and a preparation method thereof. The composite photocatalyst comprises: 10%-99% of expanded graphite and 1%-90% of zinc oxide by weight percentage. The preparation method comprises: (1) adding expanded graphite to sodium hydroxide solution at a mass volume ratio of 1-2 g: 100 ml, and stirring at room temperature for 0.5-3 hours to obtain a reaction liquid; : Add 0.1-5 zinc acetate solution into the above reaction solution, react at 50°C-90°C for 2-6 hours, vacuum filter the mixed solution, and dry the filter residue at 60°C-120°C. The invention not only avoids the agglomeration of its own particles, but also effectively prevents the reaccumulation of expanded graphite sheets; the raw materials of the preparation method are common and easy to obtain, the cost is low, and it has good application prospects.

A multi-functional biological magnetic fiber, is composed of multi-functional biological magnetic agglomerate and fiber-classed resin section, the agglomerate is consists of the following components: carrier resin 36-67.5%, magnetic powder 11-37%, active carbon powder 4-13%, combinant coupling agent 2.5-6%, and dispersing agent 15-18%. The manufacturing method is: (1) drying the magnetic powder and active carbon powder, which are mixed with the carrier resin, coupling agent and dispersing agent, heated, processed with high speed, extruding by screw, cooled and cut into particles, forming the functional agglomerate; (2) dry the functional agglomerate, the add into the fiber-classed resin section, through molten stressing the spinning and processed, acquiring the multifunctional biological magnetic fiber; (3) place the fiber acquired in the strong magnetic field of 6000-1200v Gauss to magnetize for 0.5-2min, the get the product. The fiber is a compound fiber with compound functions such as magnetic, absorptive, negative ion and far-infared ones.

The invention discloses a preparation method for activated carbon fibers with a photocatalysis function. The activated carbon fibers for immobilizing graphite phase carbon nitride are prepared by an electrochemical deposition method by taking activated carbon fibers, dicyanodiamine, N,N-dimethylformamide and the like as main raw materials. The activated carbon fibers have an adsorption function and the photocatalysis function. Under a condition of darkness or insufficient light, pollutants can be purified under the adsorption function of the activated carbon fibers; under a condition of sufficient light, the pollutants can be purified under the adsorption function and the photocatalysis function; in-situ regeneration of the adsorption function of the activated carbon fibers can be realized; labor, resource and financial consumption of a regeneration process is greatly reduced. Successful research on the activated carbon fibers has an important significance for relieving of insufficience of activated carbon fiber supply in China.

The invention relates to a preparation method of a silicate polymer flocculant rich in active catalyst. The preparation method comprises the following steps: firstly, adding 4-5 parts by weight of sodium silicate to 55-65 parts by weight of water to prepare a sodium silicate solution; secondly, adding the sodium silicate solution to 18-24 parts by weight of 98% sulfuric acid or 37% hydrochloric acid under the stirring condition; adjusting the pH value of the mixed solution to be 3.5-6.5; fully reacting to obtain a polymeric silicic acid solution; then, adding 12-18 parts by weight of inorganic salt and 0.2-0.5 parts by weight of catalyst particles to the polymeric silicic acid solution; stirring to fully react; and finally, standing; and curing to obtain the silicate polymer flocculant rich in active catalyst. The catalyst particles comprise one or several of MnO2, FeOOH and TiO2 in any proportion. The silicate polymer flocculant rich in active catalyst, which is prepared by the method, can improve the processing of hardly coagulated water, such as low-turbidity water, algae-contained water, and the like by the synergy of all components.

The invention discloses a stabilization and solidification agent for high-concentration arsenic alkali residues. The stabilization and solidification agent is composed of following components including an oxidizing agent composed of hydrogen peroxide and persulfate, a stabilizing agent composed of molysite and / or ferrite, and a conditioner composed of kaolin and / or attapulgite, red mud and pulverous coal. The synergistic interaction effect between all the components of the stabilization and solidification agent is obvious, efficient stabilization and solidification of the high-concentration arsenic alkali residues can be achieved, a method for using the agent is simple, cost is low, and the stabilization and solidification agent is suitable for application and popularization.

The invention relates to an indoor environment-friendly sepiolite mud coating and belongs to the technical field of indoor decoration materials. The indoor environment-friendly sepiolite mud coating comprises the following raw materials in parts by weight: 35-50 parts of sepiolite powder, 8-12 parts of talcum powder, 5-10 parts of heavy calcium carbonate powder, 5-10 parts of titanium dioxide and8-13 parts of kieselguhr. The indoor environment-friendly sepiolite mud coating provided by the invention is a novel indoor coating prepared from sepiolite as a main raw material mixed with other environment-friendly materials; compared with a conventional coating, the coating provided by the invention can be made with water on site before coating, in addition, the coating provided by the invention brings excellent properties of the sepiolite into sufficient play, the coating is environment-friendly, odorless and good in sound and thermal insulation and in addition has certain adsorption functions, and thus the content of harmful substances such as formaldehyde in rooms can be effectively reduced; and in addition, due to addition of other raw materials, a certain antibacterial effect is achieved, and the coating is a preferred wall coating of the conventional home decoration and industrial decoration industry.

The invention relates to a method for harmlessly treating livestock and poultry breeding waste water, comprising the following steps of: after injecting the livestock and poultry breeding waste water into an adjusting tank, adding an addition agent to aerate and stir; simultaneously, carrying out ultrasonic treatment; coarsely screening and separating so as to remove large particles and obtain a first-stage separated substance; injecting the waste water of the adjusting tank into a separation tank; adding the addition agent again to perform aeration, stir and aerobic treatments; injecting in separation equipment for separating to obtain a second-stage separated substance and separated waste water; adsorbing and filtering the separated waste water through an adsorbent so as to obtain recycled or dischargeable standard water; and simultaneously, obtaining a third-stage separated substance. The method disclosed by the invention has the advantages of simple process, easiness in operation and high efficiency. By means of a treatment system for separating solid and liquid and organic substances, contents of organic substances and nutritional components in the livestock and poultry breeding waste water can be reduced effectively; the environment pollution problem of the livestock and poultry breeding waste water is solved; the water quality of the treated livestock and poultry waste water can achieve the discharge standard; the separated substances can be recycled in other fields; and the invention provides an effective approach for harmlessly treating the livestock and poultry breeding waste water and has a realistic significance.

An ionic sieve for defluorinating the drinking water is compased of the powder of montmorillonite column compound as carrier and one or more of Cu, Ag, Ce and Gd as active component. Its preparing process includes such steps as preparing Ti columning agent, mixing with montmorillonite, calcining, immersing in the solution of said metals, and heating.

The invention discloses fiber cloth with color protection and adsorption functions as well as a preparation method and application thereof. The preparation method comprises: weighing a certain amount of water-soluble high molecular polymer and dissolving into de-ionized water to obtain a high molecular polymer water solution; adding a pH (Potential of Hydrogen) regulator, a surfactant and an auxiliary agent into the high molecular polymer water solution; stirring until the components are completely dissolved; putting viscose fibers, polyester fibers and functional fibers into a water solution after stirring and dissolving; reacting at 50 DEG C to 80 DEG C for 15 minutes to 60 minutes; carrying out filtering and drying treatment on the reacted solution to obtain cross-color-proof fibers; laying the dried cross-color-proof fibers to form a net; furthermore, fixing the net into cloth; carrying out hot pressing operation to form the fiber cloth with the color protection and adsorption functions. The fiber cloth prepared by the preparation method provided by the invention can strongly adsorb an active dye, dust scale and mites in a water solution; a dark color caused by the fact that colorful ions and stains are mixed is effectively prevented, and the color of clothes keeps more bright and lasting.

The invention discloses a powder decoration coating and preparation and construction methods thereof, and belongs to the technical field of coatings. The powder decoration coating comprises raw materials in parts by weight as follows: 40-70 parts of shell powder of 1,000-2,000 meshes, 10-30 parts of a powder functional material, 2-10 parts of dispersible gelatin powder and / or a silicate cross-linked substance, 1-5 parts of sepiolite short-fibers and 5-30 parts of colorful composite rock slices. The powder decoration coating is prepared from the shell powder calcinated at the temperature of 300 DEG C, the powder functional filler, the colorful composite rock slices, the powder cross-linked substance and functional additives through blending, the shell powder calcinated at the temperature of 300 DEG C is taken as a main material, and the powder decoration coating is good in breathability, anti-condensation, scrubbing-resistant, pollution-resistant, anti-bacterial, mould-proof and non-inflammable and has a green and environment-friendly inorganic system and a colorful decoration effect.

The invention relates to a layered silicate-containing colloidal electrolyte for storage batteries, which mainly comprises a silicon-containing gel, a thixotropic agent, a complex additive and electrolyte, wherein the thixotropic agent is layered silicate with the width / thickness ratio of 100-2,000. The colloidal electrolyte comprises the following components in percentage by weight: 2.0 to 10.0 percent of gelatinizing agent, 0.05 to 0.5 percent of thixotropic agent, 5.0 to 13.0 percent of complex additive and the balance of dilute solution of sulfuric acid. The colloidal electrolyte has goodthixotropic liquidity and gel stability and low colloid kinetic viscosity; and the filling efficiency of the colloidal electrolyte and the infiltration of the colloidal electrolyte on the baffle plate and polar plates are greatly improved. The electrolyte can be used for assembling storage batteries with different purposes, such as starting batteries, stationary batteries, traction batteries and the like.

The invention discloses a method for preparing heavy metal ion adsorbents from grafted modified cotton fibers. The method includes placing oxidized cotton fibers in tetraethylenepentamine solution, carrying out heating grafting reaction, sufficiently washing reaction products by water and then carrying out freeze-drying on the reaction products to obtain tetraethylenepentamine grafted modified cotton fibers; sequentially adding NaOH aqueous solution, absolute ethyl alcohol and epichlorohydrin into oxidized cotton fibers, carrying out heating grafting reaction in water bath, then washing reaction products by water until the reaction products are neutral, washing the reaction products by acetone and drying the reaction products to obtain epoxy cotton fibers; sequentially adding deionized water, Na2CO3 and diethylenetriamine into the obtained epoxy cotton fibers, carrying out grafting reaction under nitrogen protection conditions, washing reaction products by water until the reaction products are neutral, and drying the reaction products to obtain ion exchange fibers; uniformly mixing the ion exchange fibers and the obtained tetraethylenepentamine grafted modified cotton fibers with one another to obtain the heavy metal ion adsorbents.

The invention discloses biological activated carbon for degrading sewage COD and a preparation method thereof. The preparation method for the biological activated carbon comprises the following steps: 1) screening strains, domesticating, performing amplification culture and compounding, thereby acquiring compound strains; 2) pre-treating the activated carbon; and 3) preparing the biological activated carbon: uniformly mixing the pre-treated activated carbon and compound strains, culturing for 20-30 hours under constant temperature of 28-37 DEG C and fully drying. The biological activated carbon disclosed by the invention has the advantages of large specific surface area, strong adsorption capacity, excellent effect of removing COD in sewage, simple preparation process and low production cost; the compound flora on the biological activated carbon can specifically degrade the main COD components in the sewage; the formed biological film has a certain adsorption function, so that the biological activated carbon has dual adsorption capacities of the COD adsorption biological film and the activated carbon adsorption carrier; the service life of the biological activated carbon is prolonged; the dosage of the activated carbon in a sewage treatment process is reduced; and the market application value is high.

The invention discloses a floor projector stand which comprises a shell, a supporting column, an accommodating tank, a rotating shaft, a lifting locking assembly and a rotating locking assembly, wherein an electric jack is arranged inside the shell; the bottom of the supporting column is fixedly connected with a piston rod of the electric jack; a bearing sleeve is arranged at the top of the supporting column; a projector is placed inside the accommodating tank; the top of the rotating shaft is fixedly connected with the lower surface of the accommodating tank; the bottom of the rotating shaftis sleeved by the bearing sleeve; the lifting locking assembly comprises a pair of pneumatic telescopic rods, a lifting rod and a suction cup assembly; the lifting rod is connected with the movable ends of the pneumatic telescopic rods; the suction cup assembly is arranged on the lifting rod; the rotating locking assembly comprises a fixing sleeve, three L-shaped supporting rods and three springs;and when the end parts of the horizontal parts of the L-shaped supporting rods are all connected with the bearing sleeve, the springs are all in the natural state. By adoption of the floor projectorstand disclosed by the invention, the up-down adjustment and the 360-degree rotating adjustment of the projector can be achieved, thereby meeting the projection demand of the projector; and the floorprojector stand has no exacting demand for a floor placement point and can be properly placed according to the floor space, thereby improving the utilization ratio of the floor space.

The invention discloses an environment-friendly building decorating material capable of improving indoor air quality, which comprises the following raw materials in parts by weight: 40-90 parts of diatomite, 20-50 parts of quartz sand, 15-25 parts of kaolin, 15-35 parts of sepiolite, 10-20 parts of titanium dioxide powder, 10-35 parts of activated clay, 20-40 parts of Palygouskite and 2-5 parts of cellulose. The environment-friendly building decorating material is mainly used for decorating indoor walls, the decorated walls have moisture absorbing and adsorption functions, the indoor air quality can be improved, and the living quality of people is improved.

The invention provides a door with function of air purification. The door is provided with a carbon plate; the outside of the carbon plate is stuck with a ventilated decoration layer, or the door is provided with ventholes passing through the carbon plate from the surface of the door; the venthole is a straight hole or an oblique hole; or the door is provided with inner holes; the inner hole is provided with a carbon material with adsorptive function; the door is provided with the ventholes reaching the inner holes from the surface of the door; or the inside of the door is provided with an air purifying cavity having the carbon material with the adsorptive function; the inside of the air purifying cavity is provided with the carbon material with the adsorptive function; the door is provided with the ventholes reaching the air purifying cavity from the surface of the door; or the surface of the door is stuck with carbon paper; or the door is provided with fixed carbon fibre felt; and the surface of the carbon fibre felt is provided with a ventilated interlayer. In the invention, the carbon material with the adsorptive function is used for manufacturing the door to allow the door to have functions of purifying air, adsorbing harmful gas, adjusting humidity and strengthening negative ions and lightens the harm of smoking on the health of families.

The invention provides a novel process for removing metal ions in wet-process phosphoric acid. The process comprises the following steps: 1) adding alkaline partially-hydrolytic polyacrylonitrile fiber to deionized water, stirring, naturally filtering, washing a filter cake till the pH of liquid flowing out from the bottom of a Buchner funnel is 8 and obtaining exchange fiber of polyacrylonitrile ions and wet ions when no liquid flows out from the bottom; and 2) filling space between polypropylene cotton of a fiber filter and a cylindrical shell with the exchange fiber of polyacrylonitrile ions and wet ions, connecting a phosphoric-acid outlet pipe of an electrodialysis device with an inlet pipe of the fiber filter, allowing an outlet pipe of the fiber filter to enter a phosphoric-acid storage tank, pumping wet-process phosphoric acid into the electrodialysis device for circulation through a pump, allowing the wet-process phosphoric acid to pass through the electrodialysis device and operating the fiber filter and the electrodialysis device at the same time. The process has the advantages of simple process flow, low energy consumption, low production cost, little environmental pollution and high purification depth. In addition, the electrodialysis device used in the process is simple and easy to operate, low in energy consumption and low in cost needed.

The invention provides a nano silver bamboo charcoal fiber which is a bamboo charcoal fiber containing nano vesicles. Raw materials for preparing the nano silver bamboo charcoal fiber at least includethe nano vesicles, bamboo charcoal powder, water-based polymer materials, modified chitosan and additives. The nano silver bamboo charcoal fiber is prepared by adopting a dry-wet-wet three-coagulation bath method.

The invention discloses a formaldehyde purification robot for household use, which comprises a purifier shell, an accommodation cavity is opened inside the purifier shell, an air intake slot communicating with the accommodation cavity is opened on the front of the purifier shell, the accommodation One side of the inner wall of the cavity is fixedly installed with a purification box, and the purification box is located at the front and back of the air intake slot, and the inside of the accommodation cavity is fixed with a purification box, and the purification box is located at the back of the purification box, and the inner wall of the accommodation cavity An exhaust fan is arranged on one side. The invention sets up a purification box. When formaldehyde passes through the purification box, it will be purified by the purification plate installed in the purification box. The activated carbon adsorption net on the purification plate can effectively absorb the formaldehyde floating in the air, and when the button is pressed , the rotating plate will be rotated, so that the purification plate will pop out, thereby facilitating the replacement of the purification plate, achieving the effect of simple and convenient replacement of the purification plate, thereby ensuring the efficiency of the purifier in removing formaldehyde.

A carbon fiber and basalt composite filtering material consists of an upper composite fiber felt layer, a lower composite fiber felt layer and a middle base cloth layer. The upper composite fiber felt layer is composited with the middle base cloth layer into a whole by a lower needling process, and the lower composite fiber felt layer is composited with the middle base cloth layer into a whole by an upper needling process. The middle base cloth layer is mesh cloth woven by a rapier by using 1K carbon fibers. Each of the upper composite fiber felt layer and the lower composite fiber felt layer is mixed the following materials by weight percentage: 50% of carbon fiber short chopped strands, 25% of stainless steel short chopped strands and 25% of basalt fiber short chopped strands, and the upper composite fiber felt layer and the lower composite fiber felt layer are needled onto the middle base cloth layer by a needle machine to form a composite felt layer. The composite filtering material manufactured according to the processes is further dipped in a chemical dipping solution and dried. According to the carbon fiber and basalt composite filtering material, the oxidation resistance of carbon fibers at a high temperature is improved after the dipping and flame retardant treatment, and the softness of a needle felt is improved.

The invention belongs to the nano-biotechnology and a nano-catalysis aquaponics method. The existing aquaponics technology has the disadvantages that the fish excrement decomposition speed is low, aquaponics starting time is long and production efficiency is low. The method includes the steps of preparing aquaponics nano-catalysts, smashing tourmaline, medical stone and zeolite till the density of meshes reaches 2500, accurately weighing purple grit mud, tourmaline, nanometer titania, nanometer magnesia, medical stone and zeolite, mixing all the compositions, pressing the mixture into a grain shape or a tablet shape with water content of 20%, sintering the mixture at a temperature of 1100 DEG C to 1200 DEG C for 10 hours, placing the nano-catalysts and aquaponics microbial strain bacillus into a fish breeding water body, pumping out fish breeding pool water to be used for vegetable planting, making water absorbed by vegetables flow back into the fish breeding water body, and repeating the circulating. The nano-catalysis aquaponics method has the advantages of being high in catalysis speed, quick in fish excrement decomposition, and capable of shortening the aquaponics starting time, saving resources and improving the aquaponics production efficiency.

The invention discloses a chlorella-containing 3D printed wire and a preparation method thereof. The 3D printed wire is composed of 59-91 parts by weight of a base resin, 8-40 parts by weight of chlorella and 0.05-2 parts by weight of white oil. The preparation method comprises: (1) drying, (2) weighing, (3) high speed kneading, (4) melting granulation, (5) melt extrusion, (6) cooling traction, (7) coiling, and (8) printing of a specific structure based on a FDM technology. The preparation method utilizes a small-sized single-cell autotrophic organism which is rich in functional groups, can becombined with dye molecules or heavy metal ions and has a low price. Through an efficient and accurate FDM technology, a porous support skeleton of fine particles is prepared. The preparation methodis simple and realizes low energy consumption. The chlorella-containing 3D printed wire as an adsorbent solves the problem that after the polysaccharide in forms of a solution, powder, microsphere andgel treats the dye, the adsorbent is difficult to separate from the solution so that secondary pollution is produced. The chlorella-containing 3D printed wire realizes green circulation and high efficiency use.

A panel overturning and micro-adjusting mechanism comprises a rack. An oil cylinder base is fixed in the rack through a second pin shaft, the output end of the oil cylinder base is connected with an overturning arm, the overturning arm structurally comprises an overturning arm body, a bottom plate is fixed in the overturning arm body, a jacking oil cylinder is mounted on the bottom plate, and the top of the bottom plate is connected with the side wall of the overturning arm body through a third pin shaft; a movable base of a right-angled structure is fixed on the left side wall in the middle of the overturning arm body through a pressing block, an adjusting washer and bolts, and an electromagnet and a support block are mounted on the long right-angle side of the movable base; the overturning arm further comprises a pull rod oil cylinder connected with a stop pin, and the stop pin and the pull rod oil cylinder which are connected are mounted at the bottom of the short right-angle side of the movable base through driving keys; a support is mounted on the lower portion of the overturning arm body, an optoelectronic switch is mounted on the support, and a bent portion is arranged at the bottom of the overturning arm body. The panel overturning and micro-adjusting mechanism is high in production efficiency and good in safety.

The invention discloses a household formaldehyde eliminating method. A purifier outer shell is internally provided with a storage cavity, the front face of the purifier outer shell is provided with anair inlet groove communicated with the storage cavity, a purification box is fixedly mounted on one side of the inner wall of the storage cavity and positioned on the back face of the air inlet groove, a purification tank is fixedly mounted in the storage cavity and positioned on the back face of the purification box, and a draught fan is arranged on one side of the inner wall of the storage cavity. By arrangement of the purification tank, formaldehyde passing through the purification tank is eliminated through a purification plate in the purification tank, and formaldehyde in air can be effectively adsorbed by an activated carbon adsorption net on the purification plate; when a button is pressed, a rotating plate rotates to pop up the purification plate, so that the purification plate can be replaced conveniently and simply, and formaldehyde elimination efficiency of a purifier can be guaranteed.