708results 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 provides a fiber humidity adjusting board. The fiber humidity adjusting board is obtained by soaking a composite board in a humidity adjusting liquid, and the composite board is composed of a fiber material treated by carboxylation and porous inorganic particles dispersed in the fiber material, wherein the mass of the inorganic particles accounts for 5 to 30 percent of the solid content of the fiber, and the inorganic particles adopt one or the combination of silica gel, clay, concavo-convex rods, diatomaceous earth, activated carbon, wood charcoal and bamboo charcoal. The invention has the advantages that the fiber humidity adjusting board is a precise humidity adjusting product, when the ambient humidity changes, response can be rapidly made, and through moisture absorbing and releasing, the ambient humidity can be balanced, so as to maintain the humidity in the environment to be constant and ensure that the phenomena of wetting, mould damage or drying and cracking of the stored articles can not occur within the adjusting environment. A strap-shaped fiber humidity adjusting board is adopted, which can be cut arbitrarily; the humidity adjustment can be performed in function, and the moisture holding amount can reach and surpass the equivalent international humidity adjusting products. The fiber humidity adjusting board adopts non-toxic, harmless and recoverable raw material, and the fiber humidity adjusting board is a new-generation green and environment-friendly product.

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 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 discloses a composite catalyst used for catalytic combustion of organic waste gas as well as a preparation method and an application thereof, belonging to the technical field of catalysts. The composite catalyst is a Pt-Pd / Cu-Mn-Zn-Fe / transition layer / cordierite catalyst, macroporous high-sticky composite pseudo boehmite is taken as a second carrier, namely transition rubber, any two of La, Y, Ce and Zr are selected as assistants, non-precious metals such as Cu, Mn, Zn and Fe and precious metals Pd and Pt are taken as active components, wherein the second carrier and the assistants form the transition layer. The preparation method comprises the following steps of: carrying out acid treatment on the cordierite honeycomb ceramic surface and loading the transition layer, then loading the non-precious metal elements Cu, Mn, Zn and Fe by adopting an immersion method, and then sequentially loading the precious metals Pd and Pt by adopting a precipitation-thermal adsorption coupling method. By adopting the invention, sulphur poisoning of the catalyst can be prevented, the life of the catalyst can be prolonged, and the production cost of the catalyst can be reduced.

The invention relates to a core-shell type sulphoaluminate cement-based high-strength lightweight aggregate and a preparation method thereof. With the high-strength lightweight aggregate, a lightweight and high-strength spherical fly ash ceramsite is used as a core; and a sulphoaluminate cement-based cementitious material is coated onto the surface of the fly ash ceramsite to form a shell layer with a porous structure. According to the invention, a proper cementitious material is selected to be coated onto the fly ash ceramsite to prepare the core-shell type sulphoaluminate cement-based high-strength lightweight aggregate, so the bearing capacity of a light aggregate is reinforced, and the strength of light aggregate concrete is improved; meanwhile, by using of ordinary portland cement, fly ash and silica fume as additives, the defects like over-rapid setting time and later-stage strength shrinkage of sulphoaluminate cement are improved, and the bonding strength of a core material anda shell material is reinforced, so the overall strength of core-shell type lightweight aggregate concrete is significantly improved, and the light aggregate concrete can be more extensively applied.

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.

The invention provides an acoustic emission positioning monitoring device and method for a hydraulic fracturing fissure field of a coal body containing gas and belongs to a coal-mine gas disaster prevention and microseism monitoring device and method. The monitoring device is characterized in that a second sealing cavity body is connected in a first sealing cavity body; the two sealing cavity bodies are connected with a ground stress simulation module; a gas adsorption and desorption module is connected with a hydraulic fracturing module and then is connected with a plunger of the second sealing cavity body; a sensor of an acoustic emission positioning monitoring module is connected onto a wall of the second sealing cavity body. The method comprises steps as follows: the acoustic emission sensor is mounted, a coal sample is placed in the second sealing cavity body, and a space coordinates system is established; gas is injected into the coal sample and is sufficiently adsorbed by the coal sample; confining pressure and vertical pressure are applied to the coal sample; high pressure water with tracing color is injected into the coal body, an acoustic emission positioning monitoring system is started and is used for analyzing monitored acoustic emission signals and performing positioning monitoring on coal body fracturing incidents caused by hydraulic fracturing, and real-time monitoring for evolution of the hydraulic fracturing fissure field is realized.

The invention discloses a new method and a device for air purification. The device comprises an enclosure (1), a charge electrode grid (3), multi-stage adsorption accelerating grids (4-1, 4-2, 4-3 and the like), a negative ion emitter (5), an ozone decomposition unit (6), a high-frequency high-voltage power supply (2) and the like, wherein the charge electrode grid (3), the multi-stage adsorption accelerating grids (4-1, 4-2, 4-3 and the like), the negative ion emitter (5) and the ozone decomposition unit (6) are arranged in the enclosure (1). When high air quantity is needed, a fan can be arranged in front of the charge electrode grid (3) or in front of an air outlet. The device is characterized in that: in the enclosure, the (3), the (4-1, 4-2, 4-3 and the like), the (5) and the (6) are sequentially arranged in the direction from an air inlet to the air outlet. The (2) is arranged in a closed space. An electric field is arranged downwind or upwind in the direction from the charge electrode grid (3) to the negative ion emitter (5). The field intensity is of gradient. The high-frequency high-voltage power supply (2) has multi-stage voltage output. When the electric field is arranged downwind, the high-voltage '+' pole is connected with the (3), and the high-voltage '-' pole is connected with the first, second and third adsorption accelerating poles (4-1), (4-2) and (4-3) and the negative ion emitter (5) respectively. When the electric field is arranged upwind, the poles of the (2) are connected reversely, and the (5) is removed at the same time. The device has simple and reasonable integral structure, is sufficient to decompose and adsorb pollutants, generates more negative oxygen ions, and is convenient to clean.

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 sodium ion battery anode material FeS2 / Fe3O4 / C and a preparation method of same. The method includes the steps of: 1) according to the molar ratio of Fe:S = 1:1-5, mixing an iron source solution and a sodium lignin sulfonate solution to form a solution A; 2) performing hydrothermal treatment to the solution A to form a brown-black precipitate; 3) drying and completely grinding the precipitate to form a composite material precursor; 4) in an atmosphere of a protective gas, calcining the precursor to obtain the FeS2 / Fe3O4 / C composite material. The composite material, as a sodium ion battery anode material, has high Coulombic efficiency, is good in cycle performance and has strong adaptability in electrolytes. When being charged / discharged under charge / discharge voltage of 0.01-3.0 V and 1 A / g, after 100 cycles, the sodium ion battery has basically constant specific discharge capacity, so that the sodium ion battery anode material can satisfy demands on high-rate power batteries on market. The preparation method has simple preparation process and low cost.

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.