705results about How to "Fully adsorbed" patented technology

The invention discloses a preparation method for aluminum oxide by a direct forming method. The method is characterized in that the aluminum oxide is directly formed by a wet filter cake, wherein pore volume is 0.3-0.8ml/g; a specific surface area is 150-300 m<2>/g; and crushing strength is 30-120 N/particle; the preparation process comprises the steps: a) meta-aluminate containing aluminum or a strong acid salt compound is neutralized with a precipitator solution at a temperature of 30-80 DEG C and pH of 6-9; accessory ingredient is added in a neutralizing process; mixture is aged for at least 10min after neutralizing; b) prepared aluminium hydroxide gel is washed by de-ionized water for 4-10 times; dosage of the de-ionized water for each time is 10-40 times of mass of a dried substrate of prepared aluminium hydroxide; a hydrated alumina filter cake is obtained after washing and filtering; content of the aluminium hydroxide in the filter cake is controlled to be 5-50%; and c) the accessory ingredient is added into one or various liquid in the step a) and step b); the filter cake after washing is formed by a normal forming method; and the formed filter cake is dried at a temperature of 80-120 DEG C and calcined at a temperature of 450-1000 DEG C to obtain a finished product of the aluminum oxide.

A method of washing ware in an automatic institutional warewashing machine, using a cleaning composition containing a surfactant which eliminates the need for a surfactant in the rinse step. A surfactant is employed in the wash step in an amount not to exceed 15 wt % based on weight of the detergent. The amount of surfactant is sufficient to provide a layer of surfactant on the ware so as to afford a sheeting action in an aqueous rinse step without any added rinse agent.

The invention discloses a method for preparing a fiber wallboard through a wet process. The method comprises the following steps: 1) pulping: mixing non-wood type natural plant fiber pulp with gramineous plant pulp according to a dry weight ratio of 1:0-1.5 and adding water into the raw materials to dilute the pulp; 2) storing the pulp: placing the obtained mixture pulp into a pulp storage pond and adding water for dilution; 3) carrying out suction filter and formation: inputting the pulp obtained from the previous step into a die cavity for cold-pressing, dehydration and formation so as to obtain a wet blank; and 4) carrying out hot-pressing formation and drying; transferring the wet blank into a hot-pressing mould for hot pressing, removing water generated during the hot pressing, and obtaining the fiber wallboard. The fiber wallboard obtained by using the method has the characteristics of environment-friendliness and high strength.

The invention relates to a ground wall transition robot imitating a wall lizard, which adopts a manner of crawling on all fours and consists of a mechanical part and a circuit part. The mechanical part comprises a body and four legs, is divided into two parts in a completely symmetric manner with interchangeability; the two parts are connected by sliding part; each joint is driven by steering engine; the position of paw is designed into a damping joint, which provides a fixed position for the paw joint when suspending, and angles can be adjusted according to the condition of the wall surface when adsorbing, so as to adapt to varied conditions of the wall surface; the robot realizes the ground wall transition in a transitional walking manner, and the ground wall transition can be realized by the combined of the pitching action of the body and the change of the foothold position of a single foot; the motion control of the robot adopts a master-slave control structure, wherein, a host computer takes charge of the algorithm operation relevant to the gait planning of the robot, and meanwhile sends out orders to a slave computer at certain frequency, then the slave computer receives the orders of the host computer and makes corresponding responses, thus completing the output of the control information of the driver and sending relevant operation state information of the robot back to the host computer; the host computer and the slave computer are communicated by a 232 serial port.

The invention provides environment-friendly water-based paint and a preparation method thereof. The environment-friendly water-based paint comprises water-based resin dispersion, water, compound anion powder, an anion additive, a coalescing agent, a deforming agent, a thickening agent, a dispersing agent and a pH regulator. Crystal salt can undergo water loss after absorbing water molecules from air and the process is carried out alternately to continuously generate anions, so that the redundant cations in the air can be effectively neutralized, the floating dust and particles in the air are adsorbed and the air is purified. Nano silicon dioxide, nano phosphate titanium dioxide and nano zinc dioxide are used as photocatalyst materials which can be used for effectively degrading the harmful gases such as formaldehyde in the air under illumination so as to generate superoxide anion free radicals and accompany negative oxygen ions. Under the combined action of the crystal salt and the photocatalyst, the prepared environment-friendly water-based paint has the advantages of forming high-concentration negative oxygen ion environment which can be kept and sufficiently absorbing the harmful gases and particles such as dust so as to effectively improve the indoor air quality.

The invention discloses a preparation method for silver-coated silicon dioxide composite microsphere particles. The preparation method comprises the steps as follows: preparing nano silicon dioxide particles; sulfhydrylating the silicon dioxide particles; dispersing the sulfhydryl-modified silicon dioxide particles in a silver ammonia solution; and adding polyvinylpyrrolidone to obtain final products, namely the silver-coated silicon dioxide composite microsphere particles. According to the preparation method, the concentration, the temperature and the pH value of the solution are adjusted, and polyvinylpyrrolidone which is both a reductant and a surfactant is used at the same time, so that on one hand, new silver nanoparticles are prevented being oxidized, on the other hand, the silver nanoparticles are prevented from further growing, and therefore, the compactness and the uniformity of a nanosilver coating layer and the directional control of the thickness of the nanosilver coating layer can be achieved; and the preparation method is simple, low in raw material cost and suitable for industrial production.

A shower-type duster is composed of composed of a casing with air inlet, a partition for dividing the cavity in the casing into showering cavity and airflow cavity, a wind-gathering bulkhead for dividing the showering cavity into front and back showering cavities, two filters arranged in two channels between airflow cavity and front and back showering cavities, and two showering nozzles for both showering cavities.

The invention belongs to a manufacturing method of honeycomb type purification activated carbon. The type purification activated carbon is prepared from 20-30 parts by weight of chemical activated carbon, 11.7-21.7 parts by weight of coal-based granular activated carbon and 55.3-63.3 parts by weight of coconut shell activated carbon. The manufacturing method comprises the following steps of: ball-milling, and selecting 65-75 parts by weight of activated carbon powder granules, 1-2 parts by weight of liquidity auxiliary agent, 2-4 parts by weight of adhesive and 20.5-30.5 parts by weight of clay as the raw materials of the honeycomb type purification activated carbon; mixing the raw materials, and uniformly stirring to prepare a product material; pug-milling in vacuum, molding by extrusion, airing and sintering to obtain the honeycomb type purification activated carbon. The interior of the honeycomb type purification activated carbon prepared by using the method can fully absorb air to form low wind resistance cross-ventilation; the activated carbon made of corresponding materials can be selected according to absorbed objects, the good absorption function of the activated carbon is ensured, and the activated carbon has firm shaping and durability. The invention has the advantages of simple and feasible method, low pollution treatment cost, low carbon, energy saving and good treatment effect.

The invention discloses an in-situ presulfurization method of a hydrogenation catalyst. The method comprises the following steps: in the wetting stage of the catalyst, introducing sulfurized oil and hydrogen gas from the bottom of a reactor; when the reactor is full of the sulfurized oil, introducing the sulfurized oil and the hydrogen gas from the top of the reactor for closed cycle; and fillinga vulcanizing agent into the sulfurized oil gradually to complete sulfurization. In the method provided by the invention, the mode of introducing the sulfurized oil from the bottom of the reactor into the reactor is adopted for the wetting process of the catalyst, thus the wetting of the catalyst is more sufficient and complete, and the dry area in a catalyst bed can be effectively prevented; andmeanwhile, as the catalyst is fully wetted, the condition that the catalyst in the oxidation state is reduced by hydrogen gas thus the sulfurization is difficult to perform can be effectively avoided. The sulfurization method provided by the invention is simple in process and is convenient to operate, and the sulfurization effect is better than that of the conventional method, thereby being favorable for improving the activity of the catalyst.

The invention discloses a method for treatment of indoor air pollution by combination of photocatalytic plasma and ultrasonic. The method includes the following steps: 1, a plasma discharge reactor is used to produce plasma free radicals, a strong electric field and ultraviolet light; 2, PM2.5 is absorbed through the strong electric; 3, the plasma free radicals are harmlessly treated by reaction of the plasma free radicals and VOCs (volatile organic chemcials) in the air; 4, incompletely reacted VOCs is further reacted in the presence of a TiO2 photocatalyst; 5, by-products NOx and O3 produced by the reaction are decomposed by a safe catalyst; 6, water or non-toxic organic absorbent and tail gas are mixed fully by an ultrasonic reactor, and fully react in a filling area, and remaining particles and VOCs are left in the organic absorbent; and 7, a tourmaline loaded nano titanium dioxide filler is used in the filling area. The method has the advantages of low energy consumption, small occupation of land, low noise, wide application range, and safe and reliable operation.

The invention provides a superplasticizer for facilitating cement hydration. The superplasticizer is prepared by free radical copolymerization reaction of a monomer a, a monomer b, a monomer c and a modified monomer d, wherein the modified monomer d is prepared by a reaction of a monomer d and nanometer SiO2; the viscosity average molecular weight of the superplasticizer is controlled to be in a range from 30,000 to 80,000. The invention further provides a preparation method of the superplasticizer and application of the superplasticizer in promotion of the cement hydration. The preparation process of the superplasticizer is simple, the use is convenient, and the cost is low; the superplasticizer is prepared by importing superlong side chain polyester, zwitter ions and nanometer particles and can remarkably facilitate early-stage hydration of cement, so that the compressive strength of concrete is improved; furthermore, at room temperature or low temperature, the early-stage reinforcement effect is greatly remarkable, and the middle-stage and later-stage strength is stably improved; besides, the superplasticizer has stronger adaptability for materials, and is suitable for low-temperature large-mixing-amount mineral admixture concrete and prefabricated part concrete.

Provided is a piston valve of a shock absorber which can achieve both an effect of varying an attenuation force according to a pressure and an effect of varying an attenuation force according to a frequency region. The piston valve includes: a main valve unit coupled to a lower end of a piston rod formed with an orifice hole, to divide an inside of a cylinder into an extension chamber and a compression chamber, the main valve unit generating an attenuation force according to a difference of pressure between the extension chamber and the compression chamber; and a frequency sensitive valve unit installed at one side of the main valve unit and configured to generate an attenuation force according to a frequency of hydraulic fluid delivered through the orifice hole of the piston rod, wherein the frequency sensitive valve unit is installed within the main valve unit.

A clean room has a cleaned air feeding apparatus 1 having a rotor 2 adsorbing gaseous chemical substances to an adsorbing part 16 and desorbing the adsorbed gaseous chemical substances at the regenerating part 17. Drive 4 drives the rotor 2 to the adsorbing part16 and the regenerating part 17. The gaseous chemical substances contained in the air are adsorbed, for removal, to the adsorbing part 16, and cleaned air is fed into a clean room main body 32. Heated regenerated air is fed to the regenerating part 17 so as to desorb the adsorbed gaseous chemical substances from the air.

The invention provides a gas sampler with a dedusting function. The gas sampler with the dedusting function comprises a sampling pipe, a gas sampling port, a piston, a piston pull rod, an atomizing device, a refrigerating semiconductor, a blow-down valve and a gas sampler shell, wherein the gas sampling port is arranged in one end of the sampling pipe, and is provided with a group of unidirectional gas intake valves and unidirectional gas exhaust valves; the piston is arranged in the sampling pipe; the piston pull rod is connected with the piston and extends out of the other end of the sampling pipe; the atomizing device is used for spraying water mist into the sampling pipe; the refrigerating semiconductor is arranged on the outer side of the sampling pipe; and the blow-down valve is arranged on a part, which is close to the gas sampling port, of the sampling pipe. The invention also provides a rear-mounted dedusting method. The gas sampler with the dedusting function and the rear-mounted dedusting method provided by the invention have the advantages of convenience in carrying, low cost, high efficiency, good dedusting effect, and no influence to the environment humidity.

The invention discloses a dissociating, independent slurry mixing and bulk floatation process for fine grain middings and belongs to the technical field of coal slime floatation. The process comprises the first step of slurry mixing operation, the second step of roughing, the third step of dehydration and fine floatation operation, the fourth step of separation and desliming operation, the fifth step of coarse slime separation operation, the sixth step of desliming operation and the seventh step of ore grinding operation. According to the independent slurry mixing bulk floatation process for dissociating the coal from the fine grains, the procedure is simple, investment is small, energy consumption is low, the operation cost is low, the separation efficiency is high, and economical benefits are remarkable.

The invention belongs to the technical field of new materials and particularly relates to a recyclable, efficient, efficient, low-resistance, antibacterial and haze-preventing air filtration material. The air filtration material includes a base material layer and a filter layer, wherein the filter layer is an antibacterial agent supported nanofiber layer and is prepared by adopting an in-situ growth method, and the base material layer is made of a non-woven fabric. The air filtration material produces the step-by-step interception-barrier effect on PM2.5 and can efficiently intercept PM2.5 tiny aerosol particles, the 2.5-micron particle filtering efficiency can be up to 100%, the efficiency of filtering 0.5-micron particles and 0.3-micron particles can be up to 99%, the air resistance is 37 Pa, and the gram weight is 22.89 g/m<2>. The air filtration material is simple, convenient and easy to operate, smoke particles absorbed onto the material can be removed through washing after the material fully absorbs smoke, and multi-time repeated utilization is achieved.

The invention discloses a low-odor red phosphorus flame-retardant reinforced polyamide material. The low-odor red phosphorus flame-retardant reinforced polyamide material comprises polyamide resin, areinforced component and a red phosphorus flame retardant, and further comprises an odor absorption inhibitor. The odor absorption inhibitor is selected from modified diatomite or a compound of the modified diatomite and at least one of metallic oxide and an acid absorbent. The low-odor red phosphorus flame-retardant reinforced polyamide material is provided, generation of phosphine is inhibited in all directions and at multiple angles by addition of the odor absorption inhibitor, generated gas such as the phosphine is adsorbed fully, the odor grade of the red phosphorus flame-retardant reinforced polyamide material can be increased remarkably, and meanwhile, quite high mechanical property and flame retardant property are maintained.

The invention discloses a double-coated composite solid-state lithium manganate material and a preparation method thereof. The preparation method comprises the following steps of mixing and sinteringa lithium salt, a titanium salt, an aluminum salt and a phosphate raw material to obtain a solid-state electrolyte lithium titanium aluminum phosphate (Li <1+x> Al <x> Ti <2-x> (PO4) 3 (LATP); addingLATP, single crystal lithium manganate, a graphene oxide aqueous solution and zirconium oxide balls into a sand mill to be fully ground, nanocrystallizing the LATP and attaching the LATP to the surface of the lithium manganate, and meanwhile, coating the lithium manganate with graphene oxide; and after drying, reducing the graphene oxide into graphene at a high temperature in a hydrogen atmosphereto obtain the solid electrolyte and the graphene double-coated lithium manganate positive electrode material. According to the method, the consistency and repeatability of the material are ensured, the manufacturing cost is low, the solid electrolyte can inhibit the dissolution of manganese, the graphene blocks the reaction between the electrolyte and the positive electrode material, and the cycle performance and the high-temperature performance are improved.

A process for fastly removing solid and F from crude wet phosphoric acid includes such steps as adding sodium carbonate, stirring while reaction, adding settling agent prepared from non-ionic flocculant and anionic surfactant, and settling.

The invention relates to a zeolite drum and an adsorption purification system comprising the same. The zeolite drum comprises an outer casing, an inner drum, a group of first partition boards and a group of second partition boards, wherein the outer casing and the inner drum are coaxially arranged, an inner chamber is formed in the inner drum, and an outer chamber is formed between the outer casing and the inner drum; the inner chamber is sequentially divided by the first partition boards into a waste gas inlet chamber, an air inlet chamber and a hot air inlet chamber; the outer chamber is sequentially divided by the second partition boards into a first storage chamber, a second storage chamber and a third storage chamber; the inner chamber and the outer chamber correspond to each other inthe radial direction and form an adsorption area, a desorption area and a regeneration area; the inner drum adopts a hollow structure, the inner space is uniformly filled with multiple groups of zeolite particles, and the inner drum rotates around the central axis to sequentially pass through the adsorption area, the desorption area and the regeneration area. The zeolite drum and the adsorption purification system comprising the same have a good purification effect and high purification efficiency, occupy small space and save the cost.

The invention discloses a hospital department exhaust treatment device and method. The treatment device comprises a primary filtering unit, a sterilizing and disinfecting unit, a secondary filtering unit and an ultraviolet sterilizing and disinfecting unit. An electrostatic dust collector is adopted in the primary filtering unit, and an air inlet of the electrostatic dust collector communicates with an exhaust outlet of the hospital department. The primary filtering unit comprises two particle activated carbon adsorption recycling devices which are connected in parallel, and when one of the particle activated carbon adsorption recycling devices is in a working state, the other particle activated carbon adsorption recycling device is in a standby state. Air inlets of the particle activatedcarbon adsorption recycling devices communicate with an exhaust pipe at the top of a tower body. An air inlet of the ultraviolet sterilizing and disinfecting unit communicates with air outlets of theparticle activated carbon adsorption recycling devices. According to the hospital department exhaust treatment device and method, the structure is reasonable, and treatment of exhausting of differentdepartments is achieved.

The invention relates to a fitting device and a fitting method of a special-shaped curved surface cover plate and a flexible screen. The fitting device comprises a fitting body for pressing the flexible screen; the fitting body comprises an adsorption unit for adsorbing the flexible screen, wherein the adsorption unit comprises a plurality of sub-adsorption units arranged at intervals; a variablesize expansion unit, the variable size expansion unit includes a plurality of sub-expansion units arranged at intervals; wherein the adsorption unit and the expansion unit are jointly formed with a pressing surface which is matched with the shape of the inner surface of the special-shaped curved-surface cover plate; the expansion unit includes a conventional state in which the pressure surface size is smaller than the size of the special-shaped curved-surface cover plate, and an expansion state in which the pressure surface size is matched with the size of the special-shaped curved-surface cover plate. The above-mentioned fitting device for the special-shaped curved surface cover plate and the flexible screen is provided with a plurality of sub-adsorption units which are arranged at intervals used for adsorbing the flexible screen; and when the expansion unit is in the expanded state, the pressing surface is pressed to the flexible screen so as to be fully attached, and the fitting effect is further improved.

The invention discloses a method for effectively removing nitrate in underground water by using a Zn/Cu/Ti multi-metal nanoelectrode. The method comprises the following steps: 1, taking nitrate polluted water of which the nitrate nitrogen content is 5-200mg/L and the sodium sulfate content is 0.01-1.0g/L; 2, manufacturing a Ti nanoelectrode by taking a graphite plate as a cathode and a Ti polar plate as an anode, manufacturing a Cu/Ti double-layer nanoelectrode by taking a Cu polar plate as an anode and a Ti nanoelectrode as a cathode, and manufacturing a Zn/Cu/Ti multi-metal nanoelectrode by taking a Zn polar plate as an anode and the Cu/Ti double-layer nanoelectrode as a cathode; 3, by taking a Pt polar plate as an anode and the Zn/Cu/Ti multi-metal nanoelectrode as a cathode, putting the nitrate polluted water, the cathode plate and the anode plate into an electrolytic bath for electrolysis, thereby removing nitrate in a reduction manner, wherein the nitrate is reduced to generate nitrogen or ammonia after acquiring electrons at the cathode, and thus the purpose of removing the nitrate can be achieved. According to the method, as the Zn/Cu/Ti multi-metal nanoelectrode which is manufactured by taking the Ti nanoelectrode as a substrate is taken as the cathode, the nitrate can be effectively removed in an electrochemical reactor, and no other assistant treatment device is needed.