81results about How to "Improve the effect of removing formaldehyde" patented technology

The invention discloses a modular indoor air purification device, and relates to the field of air purification. The modular indoor air purification device comprises a machine body, a mounting structure, a purification module and an air supply system; an air inlet and an air outlet are formed in the machine body, the air inlet and the air outlet communicate with exterior and an internal cavity of the machine body respectively, and the air inlet communicates with the air outlet; the mounting structure is fixed connected in the internal cavity of the machine body, and a mounting window is arranged on the mounting structure and located on the cross section of an air channel between the air inlet and the air outlet; the purification module comprises a formaldehyde remover and a particulate pollutant remover, and one of the formaldehyde remover and the particulate pollutant remover is arranged in the mounting window; and the air supply system is used for enabling external air to flow from the air inlet to the air outlet. The modular indoor air purification device has the advantages that the formaldehyde remover and the particle pollutant remover are mutually independent, and formaldehydeor particle pollutants can be selected to remove according to needs.

The invention relates to air purification equipment with a good formaldehyde treatment effect. The equipment comprises a main body, a fixed box, a filter cartridge, a protective shell, an ultravioletlamp, an air pump, an air inlet pipe and an air outlet pipe, the equipment further comprises an impurity removing mechanism and two formaldehyde removing mechanisms. Each formaldehyde removing mechanism comprises a power assembly, a connecting box, a nozzle, a reciprocating assembly, an air cylinder, a piston, a connecting pipe and a hose. The impurity removing mechanism comprises a scraping plateand two lifting assemblies. According to the air purification equipment with a good formaldehyde treatment effect, by means of the formaldehyde removing mechanisms, water is sprayed into the filter cartridge to achieve the formaldehyde removal function, formaldehyde removal work is conducted on the air in two different modes, the formaldehyde removal effect is improved, the practicability of theequipment is improved, and dust adhering to the inner wall of the filter cartridge can be scraped off through the impurity removing mechanism, therefore the blockage probability of the filter cartridge is reduced, and the practicability of the equipment is improved.

The invention discloses a graphene modified and enhanced polyurethane composite material for 3D printing. The graphene modified and enhanced polyurethane composite material is prepared from the following raw materials in parts by weight: 90 to 100 parts of polyurethane, 5 to 10 parts of composite packing, 1 to 5 parts of a functional material, graphene quantum dots and porous graphene, 0.1 to 1 part of a light stabilizer, 5 to 10 parts of a coupling agent, 0.1 to 2 parts of a leveling agent, 1 to 6 parts of a dispersion lubricating agent and 0.1 to 1 part of an antioxidant, wherein the functional material comprises a nano silver / TiO2 antibacterial material and a multi-wall carbon nano tube / nano ZnO formaldehyde removal material; the graphene quantum dots account for 0.5 to 1 percent of the weight of polyurethane, and the porous graphene accounts for 0.5 to 2 percent of the weight of polyurethane. According to the graphene modified and enhanced polyurethane composite material for 3D printing, by the use of the adsorption and slow release functions of kieselguhr and a capsule slow release technology, the antibacterial and formaldehyde removal materials are stored in kieselguhr and then slowly released, to enhance the antibacterial and formaldehyde removal effects of a product to the maximum extent; furthermore, the prepared thermoplastic polyurethane composite material is further high in toughness and excellent in mechanical property, so that the application range of 3D printing is further expanded.

The invention belongs to the technical field of the decorative material, and relates to graphene formaldehyde-removed heating wallpaper, wall cloth and a preparation method. The method comprises the following steps: (1) preparing a formaldehyde-removed coating or an aqueous environment-friendly ink wallpaper coating; (2) pre-heating a base material; (3) coating the pre-heated base material by the wallpaper coating; (4) heating and drying the base material; (5) coating the dried base material by the wallpaper coating, and heating and embossing to prepare the graphene formaldehyde-removed heating wallpaper and the wall cloth; and (6) connecting electrodes at two ends of the wallpaper and the wall cloth, and communicating with a wire and connecting with a domestic power source so as to prepare the heated graphene formaldehyde-removed wallpaper and the wall cloth. Compared with the normal wallpaper and the wall cloth, the wallpaper and the wall cloth do not contain organic pollutants, such as formaldehyde and benzene, and the formaldehyde can be completely removed. In addition, a graphene material with the ultrahigh thermal conductivity is contained, the heating function of the wallpaper and the wall cloth can be provided, and the graphene is added to improve the wear-resisting property of the wallpaper and wall cloth coating in the great degree.

The invention discloses an efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent for formaldehyde. The efficient environmentally-friendly composite nanometer photocatalyst completely-efficient clearing agent includes, by weight, 1000 parts of deionized water, 5-15 parts of photocatalyst, 4-12 parts of dispersing aids, 4-12 parts of a dispersing agent, 4-12 parts of formaldehyde inductive agent, 2-6 parts of a penetrating agent, 4-12 parts of an astringing adsorbent and 1 part of tea polyphenol. The clearing agent can accelerate release of paraformaldehyde and rapidly and safely degrade formaldehyde, solves problems from the source, is high in efficiency of removing formaldehyde, and avoids pollution rebound.

The invention discloses formaldehyde scavenging and odor removing spray in the technical field of air purification. The formaldehyde scavenging and odor removing spray is prepared from components as follows: bacillus microorganisms, rose essential oil, cypress essential oil, geranium essential oil, tea tree essential oil, lavender essential oil and deionized water. The formaldehyde scavenging andodor removing spray is sprayed into the air in a mist form, the contact area of effective ingredients with air is increased, the effective ingredients volatilize into the air without heating, the activity of natural molecules of various essential oils is effectively protected, atomized molecules formed through atomization have very small sizes and are in the size of medical atomized molecules, therefore, higher ingredient utilization rate can be realized, and the formaldehyde scavenging rate can reach 81.4%.

The invention discloses a diatomite loaded nitrogen doped titanium dioxide / silicon dioxide photocatalytic coating and belongs to the field of chemical coatings. The diatomite loaded nitrogen doped titanium dioxide / silicon dioxide photocatalytic coating is prepared from the following components including water, diatomite loaded N-TiO2 / SiO2, wollastonite powder, Ca(OH)2, glue powder, bentonite, a dispersant, a curing agent and a defoaming agent. For the diatomite loaded nitrogen doped titanium dioxide / silicon dioxide photocatalytic coating provided by the invention, by preparing an N-TiO2 / SiO2 composite and loading the N-TiO2 / SiO2 composite in diatomite, the TiO2 photoresponse range is expanded to a visible region from an ultraviolet region before doping, the TiO2 photocatalytic activity isprotected, and the disadvantages that pure nanometer TiO2 is liable to agglomerate, a photogenerated electron-hole pair is liable in re-generation of compounding, and particles with large specific surface area but small particle size are liable to fall off from the coating are alleviated; and the dispersibility of the N-TiO2 / SiO2 in the coating is improved, the inactivation of the TiO2 photocatalytic performance is inhibited, the service life of the N-TiO2 / SiO2 in the coating is prolonged, the loading ratio is increased, and the diatomite loaded nitrogen doped titanium dioxide / silicon dioxidephotocatalytic coating has very good application prospect.

The invention discloses a synthetic method of a sepiolite / nano TiO2 composite material. According to the method, sepiolite and tetrabutyl titanate are taken as raw materials, and the sepiolite / nano TiO2 composite material is synthesized with an in-situ polymerization method. The method comprises the steps as follows: 1), the sepiolite, the tetrabutyl titanate and ethyl alcohol are mixed, stirred, dissolved and subjected to ultrasonic dispersion; 2), the temperature is raised gradually until the ethyl alcohol is volatilized thoroughly, hydrochloric acid and water are added, heating is performed continuously, and the water is volatilized, so that a dried solid is obtained; and 3), the dried solid is washed for a plurality of times and then heated and dried, a dried component is obtained, then the dried component is calcined, and powder, namely, the sepiolite / nano TiO2 composite material, is obtained. With the adoption of the method, the composite material which has a good formaldehyde-removing function can be prepared.

The invention discloses a device capable of conveniently storing an indoor formaldehyde removal agent. The device comprises a storage tank, supporting legs, rolling wheels, a liquid discharge pipe, aspray head, a liquid discharge valve, a liquid injection pipe, a sealing cover, an air feeding pipe, a one-way valve, an electric push rod, a moving rod, a sealing plate, a connection rod, a stirringrod, a threaded cavity, stirring blades, a screw rod and a fixed rod. The device capable of conveniently storing the indoor formaldehyde removal agent is simple in structure and novel in design, pressure is applied to the stirring rod through the electric push rod, thus, the stirring rod rotates and moves around the screw rod, the formaldehyde removal agent can be conveniently stirred uniformly during using, the removal effect of the formaldehyde removal agent on indoor formaldehyde is improved, using is facilitated, and the storage tank storing the formaldehyde removal agent can be conveniently moved in the using process; the stirring rod is driven by the electric push rod to rotate, meanwhile, the interior of the storage tank is pressurized through the sealing plate, the device can conveniently and movably spray the formaldehyde removal agent indoors, and the formaldehyde removal effect is improved; and the device has the good market value and is suitable for application and popularization.

The invention relates to a photocatalyst preparation with a function of effectively removing indoor decorative pollution. The photocatalyst preparation is prepared from components in percentage by weight as follows: 1%-10% of nano titanium dioxide, 0.1%-1% of nano silver, 1%-20% of a synergist and the balance of pure water, wherein the synergist is selected from aloe polysaccharide and / or epigallocatechin gallate. With the adoption of the photocatalyst preparation, formaldehyde can be efficiently removed, and formaldehyde removing property is improved substantially after addition of the synergist; the components are safe and non-toxic, secondary pollution cannot be produced in a using process, and the photocatalyst preparation is safe and reliable and meets requirements of national environmental protection.

The invention belongs to the technical field of decorative materials, and relates to graphene formaldehyde removal and thermal insulation wallpaper and wall cloth and a preparation method. The method comprises the following steps: (1) preparing an formaldehyde removal coating or a water-based environment-friendly ink thermal insulation wallpaper coating; (2) pretreating a base material; (3) coating the preheated base material with the thermal insulation wallpaper coating; heating and embossing to obtain the graphene formaldehyde removal and thermal insulation wallpaper and wall cloth. In the process, since an anti-formaldehyde auxiliary and thermal insulation slurry are added in the wallpaper coating, the graphene formaldehyde removal and thermal insulation wallpaper does not contain organic pollutants such as formaldehyde and benzene in comparison with common wallpaper; moreover, formaldehyde can be removed radically; meanwhile, a thermal insulation material is also added, and the heat transfer can be effectively inhibited to realize a function of indoor thermal insulation; moreover, by adding graphene, the wear resistance of the wallpaper coating also can be enhanced to a great extent.

The invention discloses an antibacterial and aldehyde-removing polyurethane composite material for 3D printing. The composite material is composed of the following raw materials in parts by weight: 90 to 100 parts of polyurethane, 5 to 10 parts of composite filling material, 1 to 5 parts of functional material, 0 to 5 parts of graphene, 0.1 to 1 part of light stabilizer, 5 to 10 parts of coupling agent, 0.1 to 2 parts of leveling agent, 1 to 6 parts of dispersed lubricating agent, and 0.1 to 1 part of antioxidant; wherein the functional material comprises a nano silver / TiO2 antibacterial material and a multi-walled carbon nanotube / nano ZnO aldehyde-removing material. By using the adsorption and sustained-release function of diatomite and a capsule sustained-release technology, the antibacterial material and the aldehyde-removing material are stored in diatomite and released slowly; the antibacterial and aldehyde-removing effect is maximally enhanced; moreover, the prepared thermoplastic polyurethane composite material has excellent flexibility and mechanical properties, and the application range of 3D printing is further enlarged.

The invention provides a honeycomb ceramic catalyst, a preparation method therefor and an application thereof. The honeycomb ceramic catalyst comprises: a honeycomb ceramic; a coating layer which is formed on the surface of the honeycomb ceramic, and comprises a binder and active ingredients; and noble metal which is loaded on the surface of the coating layer, wherein an active ingredient of the noble metal is calcium phosphate oxide. According to the embodiment of the invention, the honey ceramic catalyst has relatively high activity under a room temperature condition, and can remove formaldehyde in a long-acting manner without losing efficacy; and meanwhile, the coating layer and the honey ceramic are firmly combined, so that the problem that a conventional catalyst active ingredient is easy to drop can be effectively overcome; and the honeycomb ceramic catalyst is low in cost and beneficial for realizing industrial production.

The invention discloses a preparation method of novel formaldehyde removing active carbon. The method includes steps of dispersing active carbon, graphene and surface assistant in solvent, and formingmixed solution; then processing the mixed solution by a hydrothermal method; filtering and then performing vacuum thermal treatment on the filter product, so as to obtain the novel formaldehyde removing active carbon. The method is simple in technique and convenient to operate; the prepared product has excellent formaldehyde removing effect; the formaldehyde removing removal rate for 60 minutes is up to over 95%; compared with a traditional untreated active carbon, the formaldehyde removing ability is improved by 50%, thus the formaldehyde removing efficiency is improved, and air quality is effectively improved.

The invention provides a preparation method of an indoor air pollutant scavenger, the scavenger and application thereof. The preparation method comprises the following steps: S1, dissolving metal ionsalt and titanate into anhydrous ethanol, so as to obtain mixed liquor A, mixing the mixed liquor A and water to form TiOH4 sol, and ensuring that the metal ion salt is selected from molybdate and / ortungstate; S2, heating the TiOH4 sol, so as to form visible light photocatalyst hydrosol; S3, dissolving a high efficiency penetrant and a formaldehyde scavenger into water, so as to form mixed liquorB; S4, mixing the visible light photocatalyst hydrosol and the mixed liquor B, so as to form mixed liquor C; and S5, adding nano-silver colloid into the mixed liquor C, and uniformly stirring, so asto form the indoor air pollutant scavenger. The preparation method has the advantages that molybdenum ion and / or tungsten ion is directly doped during titanium hydrolysis, and can stably exist withouta dispersant, absorption wavelength is broadened to be 550 nm from smaller than 388 nm, and the capacity for treating gaseous pollutants is promoted by more than three times.

The invention relates to the field of air purifiers, in particular to an air purifier for removing formaldehyde. The air purifier for removing the formaldehyde comprises a box body, supporting feet, aflow guide plate, a filtering pipeline, an HEPA filtering net, a filtering net, a drying pipeline, a heating plate, a heating body, a telescopic rod, a cover plate, sliding rails, a first activated carbon filtering net, a supporting plate, a second activated carbon filtering net, a limiting plate, an ultraviolet lamp, a humidifying plate, a moisture absorption cotton, a humidifier, a connecting pipe, an air blower, an air pipe and a negative ion generator. The air purifier for removing the formaldehyde is simple in structure and convenient to operate; the air at air inlet holes can be heatedand dried through the heating body and the like; the filtering net is prevented from being blocked; meanwhile, the filtering pipeline is convenient to detach; the filtering net and the HEPA filteringnet are convenient to replace; the contact area can be increased by means of the first activated carbon filtering net and the second activated carbon filtering net which are arranged in an inclined manner, so that the formaldehyde removing effect is improved; and the air can be more comfortable through the structures, such as the humidifying plate and the humidifier.

The invention discloses an environment-friendly shell powder coating and a processing process thereof and relates to the technical field of building materials. The process comprises steps as follows:S1, material pretreatment; S2, preparation of a stock liquid: a raw material A is prepared; S3, effect enhancement: an enhancer and ammonium dihydrogen phosphate are added to the raw material A prepared in S2, the mixture is stirred at the rotating speed of 250-300 r / min for 0.5-0.8 h, and a raw material B is prepared; S4, condensation preparation: tanboocel fiber and glutinous rice flour are added to the raw material prepared in S3, the mixture is stirred at a rotating speed of 150-300 r / min for 0.6-1.5 h and packaged in a sealing pot, and a finished product is prepared. According to the environment-friendly shell powder coating and the processing process thereof, no irritant materials are added, the shell powder material is taken as a main body, the environmental protection safety of thecoating is guaranteed, and the formaldehyde removal capability and the indoor antibacterial and sterilizing capability of the coating are enhanced; meanwhile, the tanboocel fiber and the glutinous rice flour are added, the attachment and the overall plasticity of the coating are improved, and the overall performance of the coating is enhanced.

The invention relates to the field of home furnishing, in particular to a circulative humidifier capable of removing formaldehyde. A suction fan and an exhaust fan are arranged inside a machine body, a partition board is arranged in the upper portion of the machine body, a water tank is arranged in the middle of the machine body, through the water tank and the partition board, an airflow channel in the machine body is made to be in an 'S' shape, the suction fan is connected with a deduster and absorbs the formaldehyde through an activated carbon filter core, the formaldehyde is removed further through the photocatalysis, air is humidified through water-absorbing fiber bars, and the water content of the water-absorbing fiber bars is guaranteed through a gear pump and a water circulation system matched with the gear pump. The total device is capable of removing pollutants in the air with the formaldehyde as the majority, and effective humidification can be achieved.

The invention discloses a pollution purifier for indoor decoration. According to the technical scheme, the pollution purifier includes an air extractor and a treatment barrel. An air outlet of the airextractor is connected with an air inlet pipe which extends into the bottom of the treatment barrel, and the treatment barrel is filled with treatment liquid. The treatment liquid comprises, by weight, 50-60 parts of water, 15-20 parts of modified tourmaline powder, and 60-70 parts of emulsifying wax. The air extractor can extract indoor air into the treatment barrel, air floats up and passes through the treatment liquid, formaldehyde is decomposed into carbon dioxide and water through negative ions, and therefore the treatment liquid can degrade formaldehyde continuously. Compared with a physical adsorption method, the treatment effect of the pollution purifier for indoor decoration is better.

The invention relates to a paste composition for removing formaldehyde and a preparation method thereof and relates to the field of daily articles. The paste composition for removing formaldehyde comprises a paste base body and carbon powder. The carbon powder is dispersed on the surface, in contact with air, of the base body. The paste composition is prepared from the raw materials in percentageby mass: a formaldehyde component, an oil phase component, sodium oxide, a water phase additive and the balance water. The formaldehyde component is prepared from the following components in percentage by mass: 0.7-3.0% of titanium dioxide, 4.7-16.9% of diatomite, 1.1-5.1% of cactus stem extract, 1.1-5.1% of Fargesia dracocephala extract and 0.5-5.0% of carbon powder. The paste composition can remove formaldehyde effectively and is safe to use, and does not pollute the environment or does not have bad smells and the like. The preparation method of the paste composition is simple and controllable to operate and can reach batch production, and the prepared paste composition for removing formaldehyde is high in stability.

The invention discloses a novel efficient formaldehyde catalyzing material and a digital display formaldehyde purifier prepared from the same. The novel efficient formaldehyde catalyzing material comprises a carrier and a formaldehyde catalyzing coating coated on the carrier, the carrier comprises a non-woven fabric layer and a composite fabric layer which are fixed together, and the formaldehydecatalyzing coating is prepared from the following raw materials: high-porosity manganese oxide fiber microspheres, methylglycine proline, an adhesive, nano titanium dioxide, permanganate, distilled water, a defoaming agent and a dispersing agent. The preparation method of the high-porosity manganese oxide fiber microspheres comprises the following steps of: twisting and gathering manganese oxide fiber membranes with a width of 1.5m and disorderly distributed internal fibers to form manganese oxide fiber bundle strips, then performing cutting off and extrusion to form the porous structure nanofiber microspheres. Due to the fact that a large number of micropores exist in the surfaces and the interiors of the high-porosity manganese oxide fiber microspheres in the coating, the efficient formaldehyde catalyzing material can rapidly adsorb formaldehyde in the air and undergo catalytic decomposition, and the formaldehyde removing rate is high.

The invention relates to the technical field of preparation of formaldehyde removal materials, and discloses graphene nano-composite gel for removing formaldehyde, a preparation process and application. Raw materials of the graphene nano-composite gel comprise graphene oxide, concentrated sulfuric acid, phosphoric acid and plant essential oil, and the graphene nano-composite gel is high in formaldehyde removal efficiency. At present, a common photocatalyst achieves the effect of decomposing formaldehyde under the ultraviolet irradiation condition, an ultraviolet region in sunlight is small and the content is low, and the material prepared by the invention achieves the effect of efficiently decomposing formaldehyde under the ultraviolet-free condition.

The invention relates to the field of furniture factory furniture formaldehyde removal devices, in particular to a formaldehyde removal device facilitating chip removal. The formaldehyde removal device comprises a base, a damping structure, a stamping structure, a take-up structure, a limiting structure and a processing structure; the stamping structure is installed on the base, the interior of acontainer containing a formaldehyde removal agent can be continuously pressurized through a labor-saving treading action of a lever, and the formaldehyde removal agent can be finally sprayed out in amist shape, so that the labor-saving effect can be achieved, the formaldehyde removal effect can be better, gas can be extruded into another container, it can be guaranteed that final gas is sprayed out at high pressure, wood chips and dust accumulated on the surface of furniture can be removed in time, and subsequent formaldehyde removal work can be better conducted; and through the installationof the take-up structure, a pipeline can be wound and stored, not only can the pipeline be conveniently drawn to carry out ash removal and formaldehyde removal work on the large-area furniture, but also the pipeline can be automatically wound and stored after the work is finished.

The invention discloses a scavenger with an efficient formaldehyde purifying function. The scavenger comprises the following components in percentages by weight: 4-6% of a natural plant extract, 1-3%of a 4a molecular sieve, 1-3% of kieselguhr, 10-14% of nano TiO2 sol, 1-3% of dodecylbenzene sodium sulfonate, 1-3% of enzyme, 2-4% of lemon wax, 2-4% of tea leaves and the balance of deionized water.The scavenger has the advantages that a powder mixture of more than two of lemon balm, ficus elastic, ivy tree barks and spathiphyllum kochii is used as a raw material, by amino acid extracted by a supercritical method, the ratio of other chemical raw materials is reduced correspondingly, and therefore, secondary pollution caused by an air purifying agent can be relieved; and the 4a molecular sieve and the kieselguhr are added and are modified by transition metal, the adsorption ability of the 4a molecular sieve and the kieselguhr is greatly enhanced, the 4a molecular sieve and the kieselguhr belong to natural zeolite and are low in price, and thus, the cost of the scavenger is reduced; and by addition of the tea leaves, the scavenger is fresh while an effect of removing the formaldehydeis enhanced.

The invention discloses a method for sepiolite / nano TiO2 in situ synthesis and doping modification. With sepiolite, tetrabutyl titanate and a rare earth additive as raw materials, a sepiolite / nano TiO2 composite material is synthesized by an in situ polymerization method; the method comprises the following steps: (1) mixing sepiolite, tetrabutyl titanate and ethanol, stirring to dissolve, and carrying out ultrasonic dispersion to obtain a mixed liquid; (2) dissolving the rare earth additive in dilute hydrochloric acid, and adding the mixed liquid obtained in the step (1); (3) gradually heating up to make ethanol evaporate completely, adding water, and then continuing heating to evaporate water to obtain a dried solid; and (4) washing the dried solid for a plurality of times, heating and drying to obtain a dried ingredient, and then calcining the dried ingredient to obtain a powder which is a modified sepiolite / nano TiO2 composite material. The method can be adopted to produce the composite material having a good function of removing formaldehyde.

The invention discloses an infrared-based wireless communication device, which comprises a casing, a power supply module and a control module are arranged inside the casing, a button group and an infrared emitting device are arranged on the casing, and a formaldehyde removal device, an air extraction device, and a detachable The air inlet of the exhaust device is connected with an exhaust pipe. The formaldehyde removal device includes a hollow box body. The inner wall of the box body is provided with an upper baffle plate and a lower baffle plate along the horizontal direction. The surface is provided with a layer of photocatalyst coating, and the inner wall of the box body is located under the upper baffle and the lower baffle, respectively, and an ultraviolet lamp electrically connected to the control module is installed, and an air extraction device switch electrically connected to the control module is provided on the outer shell The button and the ultraviolet light switch button, the outlet of the air extraction device are connected with the bottom of the box body through an air outlet pipe, the top of the box body is provided with an air outlet pipe, and a filter device is arranged in the air outlet pipe. The beneficial effect is that it has the function of removing formaldehyde and has strong practicability.

The invention relates to an antibacterial formaldehyde-removing composite inorganic artificial stone material and a preparation method thereof. The material comprises the following components in parts by mass: 40 to 65 parts of aggregate; 25 to 40 parts of cement; 1 to 10 parts of a composite modifier; 0.001 to 0.008 part of a water reducing agent; 0.0002 to 0.002 part of a retarder; 6.5 to 15 parts of water; and 0.0008 to 0.005 part of modified antibacterial powder. According to the antibacterial formaldehyde-removing composite inorganic artificial stone, the modified antibacterial powder capable of continuously radiating terahertz waves is used for replacing a metal ion antibacterial agent to prepare the artificial stone, direct contact is not needed, good harmful gas decomposition and sterilization effects are achieved, environmental pollution is reduced, and human health is facilitated.

The invention discloses indoor formaldehyde removing equipment. The equipment comprises a shell; a first containing cavity, a second containing cavity and a third containing cavity are formed in the shell; an air inlet fan is fixedly arranged on a side wall of the first containing cavity; the inner side of a transmission channel is fixedly provided with a first activated carbon plate; one side ofthe air inlet fan is fixedly connected with a transmission channel; a filtering cylinder net is arranged inside the second containing cavity; a movable plate is arranged on the bottom wall of the third containing cavity; and a second activated carbon plate is arranged on a side wall of the third containing cavity. According to the indoor formaldehyde removing equipment, air is purified for multiple times, so that formaldehyde in the air is removed, and air purification capability is high. The filtering cylinder net is arranged, so that the contact area between a ferric chloride solution and air is increased, and formaldehyde removal efficiency is improved. In the equipment, a placement groove and the movable plate both can be pulled out by manpower, and then exchange is convenient; sealingperformance of the whole shell is good, so that overflow of air is avoided, and harm of ultraviolet rays to human bodies is avoided.

The invention relates to the field of purifiers, in particular to an indoor formaldehyde purifier, which comprises a mounting plate, an air suction mechanism and a multi-stage formaldehyde purification mechanism, and is characterized in that the upper surface of the mounting plate is fixedly connected with a box body; the air suction mechanism is connected with the box body; the multi-stage formaldehyde purification mechanism is connected into the box body, and an air outlet of the air suction mechanism is connected with an air inlet of the multi-stage formaldehyde purification mechanism; themulti-stage formaldehyde purification mechanism comprises a dust removal filter bag, an activated carbon filter plate, a cleaning door, a connecting pipe, a dust removal chamber, a gas guide pipe, a formaldehyde adsorption chamber, a microbial degradation chamber, a porous ceramic microbial culture medium and a heating plate; a dust removal chamber, a formaldehyde adsorption chamber and a microbial degradation chamber are sequentially arranged in the box body from left to right, a diatom ooze plate is fixedly connected to the inner wall of the dust removal chamber, and a dust removal filter bag is installed in the dust removal chamber. The indoor formaldehyde purifier provided by the invention has the advantages of good purification effect and low use difficulty.

The invention relates to the technical field of mortar preparation, and particularly discloses formaldehyde-removing premixed mortar and a preparation method thereof. The formaldehyde-removing premixed mortar comprises the following components in parts by weight: 20-30 parts of cement; 50 to 70 parts of river sand; 1-10 parts of a formaldehyde absorbing composition; the formaldehyde absorption composition comprises a formaldehyde absorbent and vermiculite powder. According to the invention, the formaldehyde absorbent and the vermiculite powder are combined for the first time to serve as the formaldehyde absorption composition to be added into the premixed mortar, so that the premixed mortar has an excellent formaldehyde removal function.