250results about How to "Easy to float" patented technology

There is disclosed a radio control flying toy in which an airframe can be easily floated and a running direction can be easily controlled. The toy is provided with: an airframe 11 formed into a rectangular plate shape having a flat bottom surface on a lower side; first to fourth propellers 16a, 16b, 16c, and 16d which are disposed in four corners forming at least a quadrangular shape on the lower side of the airframe 11 and which feed air toward a bottom-surface side to float the airframe 11; first to fourth driving means 17a, 17b, 17c, and 17d which drive the first to fourth propellers 16a, 16b, 16c, and 16d, respectively; a control unit 20 which individually controls driving outputs of the first to fourth driving means 17a, 17b, 17c, and 17d, respectively; a transmitter 30 for transmitting a control signal for flight from the outside to the control unit 20; and a battery 21 which supplies power to the first to fourth driving means 17a, 17b, 17c, and 17d and the control unit 20.

The invention relates to a carbon fiber wetland type ecological floating bed and an arrangement method thereof, belonging to the field of sewage treatment. The carbon fiber wetland type ecological floating bed comprises a bed body, a biological carbon fiber material, floating bed plants and a wetland tank, wherein the wetland tank is arranged in the bed body; the interior of the wetland tank is filled with a porous light-weight artificial wetland filler; the floating bed plants are planted in the middle of the filler; and the biological carbon fiber material is hung on a suspension rod at the bottom of the wetland tank. According to the carbon fiber wetland type ecological floating bed, the processes of the ecological floating bed, bio-contact oxidation and the artificial wetland are reasonably combined to ensure that sewage is firstly subjected to bio-contact oxidation to degrade most pollutants, then the sewage is intercepted and further degraded through the wetland structure, and finally, through the absorption effect of plant roots, the quality of the sewage is better improve; and meanwhile, the reasonable layout of plants can be used for achieving the purposes of beautifying the environment, improving the ecological diversity and promoting the degradation effect on the pollutants of the whole floating bed system.

A water tank filter having a double structure including an inner filter having a small pore size for trapping fine particles of filth from tank water and situated within a hollow outer filter having a large pore size for trapping coarse particles of filth. The inner filter is situated in roughly the upper half of the internal space of the outer filter. Disclosed also is a water tank purifier including the water tank filter. The water tank filter and purifier can effectively remove both coarse and fine particles of filth from a water tank. The filter does not quickly get clogged, and is easy to handle.

The invention relates to a high oil absorption composite material containing cellulose waste filler and a preparation method thereof. The composite material takes acrylic ester multipolymer high oil absorption resin as base material, in which the cellulose waste in the shape of island is uniformly dispersed in the base material. The preparation includes the following steps of: the preparation of the base material, namely the acrylic ester multipolymer high oil absorption resin; the preparation of the cellulose waste filler; the blending of the high oil absorption resin and the cellulose waste filler to prepare the high oil absorption composite material. Compared with the prior art, the composite material has the following advantages of excellent oil absorption performance, the availability to absorb a plurality of oils, high oil absorption percentage and good fat-binding performance. The key technology of the invention lies in the acrylic ester multipolymer oil absorption resin, which has wide raw material source, takes water accounting for 60-80 percent as dispersing medium, and the technology is simple and easily controllable. The filler is natural cellulose waste with the particle diameter of 0.25-0.035mm. The waste can be bagasse, corn cob, peanut shells and sawdust powder, and has wide source, belongs to resource recycling area, conforms to the national policy of sustainable development and is simple, safe and environment-friendly in preparation process.

The invention discloses a lithium ion battery lithium-enriching technology and a lithium ion battery prepared by the technology. The lithium-enriching technology comprises the following steps: evenly pre-mixing lithium powder and EC powder under a dry state at a temperature which is lower than the melting point of EC, then heating the mixture to a temperature which is higher than the melting point of EC to melt EC powder to evenly disperse lithium powder in the EC solvent so as to obtain lithium powder slurry; painting the obtain lithium powder slurry on at least one of the positive electrode sheet, the negative electrode sheet, or the diaphragm of a lithium ion battery, and then cooling to a temperature that is lower than the EC melting point so as to obtain a positive electrode sheet, negative electrode sheet and/or diaphragm containing a lithium-enriched surface layer. Compared to the prior art, the lithium-enriching technology has the advantages of simple preparation method, even dispersing effect, and no destruction on the surface protective layer of lithium powder during the dispersing process, moreover, the lithium-enriched layer does not to be dried after painting, and thus the phenomenon that lithium powder is oxidized and released into the air during the high temperature baking process is effectively avoided.

A technology for feeding the rare-earth wire into conticasting tundish features that the molten steel flows from ladle into tundish and then into the crystallizer under the control of stopper, and the rare-earth wire comes into molen steel near the stopper in the tundish and is molten. Its advantages are uniform distribution of rare earth is molten steel, high effect on modifying sulfide, high rate of finished products and impact toughness, for conticast plate, and simple operation.

The invention relates to a heavy anticorrosion super weatherproof powder coating. The heavy anticorrosion super weatherproof powder coating comprises the following components of: an epoxy resin particle system containing epoxy resin and an adaptive curing agent A and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B, wherein the weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). The heavy anticorrosion super weatherproof powder coating provided by the invention has excellent weatherproof and anticorrosion properties and also can realize automatic stratification after once coating is carried out, and construction is simple.

The invention provides high-fluidity pumping ceramsite concrete and a preparation method thereof. A formula of the concrete comprises cement, coal ash, water, fine aggregate, limestone flour, pumping aid, ceramsites, ceramic sand, redispersable emulsion and hydroxypropyl methyl cellulose. The method comprises the following steps: reasonably selecting respective raw materials and usage thereof according to a unit weight of concrete to be prepared, soaking the ceramsites to a saturated water absorption state in advance, then mixing with other raw materials, and stirring to prepare the ceramsite concrete. By controlling the grain size of the ceramsites and a fineness modulus of the fine aggregate, the redispersable emulsion and hydroxypropyl methyl cellulose are cooperatively added to promote the cementation of the cementing materials such as the cement, the coal ash and the limestone flour with the ceramsites, and the cohesiveness and water retaining property of the concrete are increased, and the problems of easy floating, layering and separation of the ceramsites in the ceramsite concrete are effectively solved, moreover, separation and layering of the ceramsites can be effectively avoided by using the ceramsite concrete produced according to the invention, and slump loss in a material transporting and waiting process is obviously reduced.

[Summary]

[Problems] To provide extremely-spherical-three-dimensional-shaped particles of crystalline mannitol containing large hollows and gaps inside.

[Solution] Spherical particles of crystalline mannitol made by spray drying, extremely spherical (having an aspect ratio of 1.0 to 1.2), high oil absorption rates according to test method A, wherein powder has a mean particle diameter of 15 to 165 μm, a loose bulk density of 0.35 to 0.60 and an angle of repose of 30 to 50 degrees, and has a hardness of 7 to 20 kgf, when directly compressed.

Provided is an impact type electric tool. A striking mechanism is used, which uses a hammer having striking claws that are equally arranged in the rotational direction and an anvil having struck claws. A relationship between a striking energy E, which the hammer has right before striking the anvil, and a disengaging torque T_B, which is applied between the hammer and the anvil right before the hammer is disengaged from the anvil, is set as 5.3×T_B<E<9.3×T_B in the case of three claws and set as 9.3×T_B<E<15.0×T_B in the case of two claws, so as to perform striking by skipping one of the claws of the hammer and the anvil when a high torque is required. Accordingly, the electric tool achieves output of a high torque while maintaining a favorable operational feeling during striking.

The invention discloses integrated high-efficiency sewage treatment equipment which comprises a box body, wherein the interior of the box body is sequentially partitioned into a water inlet chamber, a mixing chamber and a water purification chamber from the left to the right by virtue of a first filtering net and a second filtering net; the first filtering net is positioned on the left side of the second filtering net; the upper end of the water inlet chamber communicates with a biological deodorization device through an exhaust pipe; a sewage inlet pipe communicating with the water inlet chamber is arranged at the upper end on the left side of the water inlet chamber; a sprayer is arranged in the water inlet chamber in the lower end of the sewage inlet pipe; the sprayer communicates with the output end of a liquid pump outside the left side of the box body through a conveying pipe; and the input end of the liquid pump communicates with a foam cleaning agent storage tank at the lower end of the liquid pump. The integrated high-efficiency sewage treatment equipment disclosed by the invention is reasonable in structural design and is capable of completing the operations of mixing sewage and foam cleaning agents, stirring, deodorizing, filtering, performing air-flotation treatment, removing residues and scraping mud at a time, the sewage treatment effect is improved, the first filtering net and the second filtering net can be automatically cleaned, blockage is avoided, and the replacement frequency and the maintenance costs of the first filtering net and the second filtering net can be reduced.

The invention relates to a micro low carbon, low silicon, low phosphor, and low sulfur Al-Mg-Ca-Fe alloy used in steel-making. It uses as deoxidizer and contains 20-85wt% Al, 5-20wt% Mg, 1-15wt% Ca, C less than 0.02wt%, Si less than 1.0wt%, P less than 0.02wt%, S less than 0.02wt%, the rest is Fe. It is smelted from line frequency furnace. The invention has the advantage of easy to use, stable, and could improve the recovery factor of the metal element. The molten steel treated by the deoxidizer has good fluidity, high work rates, high benefits, etc. The deoxidizer could discharge the impurity, and it has good mechanical behavior, good quality, long useful life and good social benefit.

The invention provides a novel process of steelmaking deoxidization by utilizing precipitator dust of a refining furnace, comprising the steps of 1, under the circumstance that the blowing process of a converter or an electric furnace is finished, the carbon end-point composition W[C] %=0.1-0.6% and the tapping temperature is 1580-1620 DEG C during the tapping, connecting the bottom to blow argon gas 2-4min before the tapping and carrying out gas stirring at the speed of 150-480L/min; and 2, after the tapping of the liquid steel in the converter or the electric furnace, starting to continuously add tons of steel aluminium blocks or alloy to carry out deoxidization, and when the quantity of the liquid steel is 7-17t in a steel ladle, starting to add the precipitator dust of the refining furnace along with the steel flow of the tapping of the furnace, wherein the adding quantity of the steel aluminium blocks or alloy is confirmed according to carbon content of the liquid steel before the tapping, the tapping time of the furnace is 2-8min, the adding of the precipitator dust of the refining furnace needs to be finished in 3-4min and the adding quantity is 1.2-6kg/ton of steel. According to the invention, the precipitator dust of the refining furnace is adopted as the deoxidizing agent, so that the novel process is suitable for silicon killed steel and silicon-aluminium killed steel.

The mixed aeration type biological treating system features that there are one circular biochemical pond set beside the mixing pond, which has one inside ejector and two overflow grooves in the top including one connected to the mixing pond via an outside circulating pipe; one first stage air floating pond connected to the other overflow groove and to the mixing pond via a sewage reflux pipe; one second stage air floating pond connected to the first stage air floating pond; one blower connected to the circular biochemical pond via ventilating pipeline; and one shallow aeration pipe in the outlet of the ventilating pipeline. The present invention has combined inside-pond circulation and outside-pond circulation, greatly raised impact resistance, and increased chemical-adding coagulating and air floating pond for raised treating capacity.

The invention relates to the technical field of continuous casting refining treatment, and in particular relates to an RH (relative humidity) treatment method for low silicon-aluminum killed steel. The method is characterized in that the method is suitable for <C> greater than or equal to 0.010% and less than or equal to 0.05%, <Si> greater than or equal to 0.03% and less than or equal to 0.05%, and argon-blown silicon less than or equal to 0.008% after discharge of steel from a converter, SiO2 oxidized by low carbon ferrosilicon and Al2O3 in molten steel are reacted through rimmed steel by RH so as to produce deoxidized product aluminum silicate, and fine Al2O3 inclusion adhere to the aluminum silicate in floating upward process, so that the purpose of purifying the molten steel is achieved. Compared with the prior art, the method has the beneficial effects of meeting the requirement of upper limit of 0.03% of the end product silicon of low silicon-aluminum killed steel, reducing the phenomenon of flocculation caused by producing RH low silicon-aluminum killed steel through a middle sheet billet chamber machine, and lowering the inclusion rate of a steel board, and the cold rolling inclusion rate of defect is lowered to 0.26% from 0.46%.

The invention relates to an yttrium rare earth magnesium composite nodulizer, which comprises the following components in percentage by weight: 35-55% of Si, 4.5-10% of Mg, 0.05-1.2% of Y, 0-1.0% of Bi, 0-5% of Sb, 0.5-5% of Ca, 0-5% of Ba and the balance of Fe and a small number of impurity elements. The yttrium rare earth magnesium composite nodulizer takes yttrium iron alloy as a source of yttrium, and a mix-melting method is adopted in a medium-frequency induction furnace to produce the yttrium rare earth magnesium composite nodulizer. Years of researches and application practices prove that the yttrium rare earth magnesium composite nodulizer produced by the yttrium iron alloy can completely solve the problems of spheroidalization decaying, graphite degeneration and the like in the process of producing nodular cast iron with a thick and large cross section under different conditions and solves the phenomenon of 'sandwich' of inhomogenous structure property of the nodular cast iron with the thick and large cross section. Because the rare earth contains yttrium and does not contain any other rare earth elements, the rare earth element is single without mutual interference of rare earth elements, and the spheroidalization decaying resisting capacity is strong.

Provided is an alkali-free glass substrate having a high strain point and excellent bubble count, and a method for manufacturing the alkali-free glass substrate. The method includes: a batch preparing process of preparing a raw material batch so as to obtain alkali-free glass containing, in mass %, 50 to 80% of SiO₂, 15 to 30% of Al₂O₃, 0 to 4.5% of B₂O₃, 0 to 10% of MgO, 0 to 15% of CaO, 0 to 10% of SrO, 0 to 15% of BaO, 0 to 5% of ZnO, 0 to 5% of ZrO₂, 0 to 5% of TiO₂, 0 to 15% of P₂O₅ and 0 to 0.5% of SnO₂ as a glass composition; a melting process of melting the prepared raw material batch; a fining process of fining the molten glass; and a forming process of forming the fined glass into a sheet shape. The raw material batch is melted such that a bubble enlarging temperature of the obtained glass is lower than a maximum temperature of the fining process.

The invention relates to a high strength steel wire for arc additive manufacturing, and a preparation method thereof. The high strength steel wire comprises the following components by mass: 0.09%-0.14% of C, 0.6%-1.0% of Si, 1.5%-2.0% of Mn, 0.5%-0.8% of Mo, 2.0%-3.0% of Ni, 0.3%-0.6% of Cr, no more than 0.1% of Al, no more than 0.02% of P, no more than 0.02% of S, no more than 5 ppm of H and thebalance Fe. Inclusions are less during arc additive manufacturing by using the high strength steel wire, and the continuous forming requirements of the arc additive manufacturing can be met; and thearc additive manufacturing accumulation state has high strength and plasticity.

The invention discloses a sewage comprehensive treatment device, comprising a treatment box, the inside of the treatment box is separated from left to right by a partition into a stirring and crushing cavity, a sediment cavity and a dissolved air cavity connected in sequence, and the left upper end of the treatment box is A sewage inlet pipe connected to the stirring and crushing chamber is provided; a stirring device is provided in the stirring and crushing chamber, and a stirring motor is provided at the upper end of the treatment tank to drive the stirring device to rotate; a horizontally arranged filter screen is provided at the lower end of the sediment chamber The left side of the lower end of the dissolved air chamber is provided with a dissolved air nozzle, and the dissolved air nozzle communicates with an external dissolved air tank, and the right side of the described dissolved air nozzle is provided with a plurality of ultrasonic generators at intervals, and the upper end of the described dissolved air chamber is provided with There is an air flotation processing mechanism. The invention has reasonable structural design and convenient use, can realize effective treatment of sewage in small medical institutions through stirring and pulverizing, sedimentation, air flotation treatment and multiple disinfection treatment of sewage, has high treatment efficiency, good treatment effect and strong practicability.