95results about How to "Broad development prospects" patented technology

A magnetically controlled welding method with consumable electrode features that a pair of exciting coils for upper and lower electrodes are arranged respectively above and under the workpiece to be welded, and an exciting power supply is used to provide the exciting current to said coils and generate an external vertical magnetic field for controlling and perform the welding to the workpiece protected by active gas or CO2. Its welding apparatus has exciting power supply, exciting unit and water cooling system.

The invention relates to a flexural fatigue mode adjustable tester for testing mechanical properties of materials, and a testing method thereof, belonging to the field of precision instruments. The tester comprises a flexural fatigue loading unit, a test piece clamping unit, an associated movement unit and a precise detection unit, wherein the flexural fatigue loading unit is powered by a direct current servo motor, a crank and rocker mechanism is driven to realize reciprocating swinging of a rocker by primary worm gear reduction, the rocker drives the clamping unit to realize reciprocating rotation, a bended test sample is repeatedly bent along with the reciprocating rotation of the clamping unit, and the associated movement unit does associated rotation and translation under the driving of the bended test sample. The tester has the advantages that the error of converting bending moment in three-point bending loading is avoided, the influence of the friction force of a support roller on the testing result is avoided, the bending moment and the bending angle can be accurately measured, different fatigue modes can be realized, and fatigue testing with different stress amplitudes and different average stresses can be realized.

The invention relates to a preparation method of structure-modified 1,2-polybutadiene rubber, belongs to a macromolecular compound obtained by carbon-carbon unsaturated bond reaction, relates to a preparation method of butadiene homopolymers, and is characterized by comprising (1) raw materials used; (2) the preparation method of the structure-modified 1,2-polybutadiene rubber; (3) a preparation method of mixed stock of the structure-modified 1,2-polybutadiene rubber. The invention provides a molybdenum catalyst system which can substantially raise the activity of the catalysis system, reduce the molecular weight of a polymerization product, widen molecular weight distribution and decrease the polymerization glue solution viscosity, and simultaneously also provides a structure modifier for improving cold-flow performance and processability of a polymer and wet traction and aging resistance of vulcanized rubber and greatly increasing the service life of the rubber by generating a branched structure of the polymer, so as to realize the industrial preparation method of the structure-modified 1,2-polybutadiene rubber product by molybdenum catalytic synthesis.

The invention relates to an edging cube-shaped cobalt-iron prussian blue nanometer material and a preparation method thereof. The preparation method comprises the following steps of firstly, stirring and dissolving a surfactant into water under the magnetic action; after dissolving, sequentially adding sodium citrate and cobalt salt to prepare a solution A; then, dissolving potassium ferricyanide solid into water to prepare a solution B; gradually dripping the solution A into the solution B while stirring; after dripping, continuing to stir for a period of time; standing and aging the reaction liquid for a period of time, naturally cooling, centrifuging, washing, and drying, so as to obtain the edging cube-shaped cobalt-iron prussian blue nanometer material. Compared with the prior art, the synthesizing method has the advantages that by changing the conditions, the edging cube-shaped cobalt-iron prussian blue nanometer material is prepared; the morphology and structure of the material are not reported in the literature; the preparation is simple, the implementing is easy, and the large-batch preparation effect is realized.

The invention provides an improved method for producing low-salt high-quality dense soda ash by using light soda ash produced by a hot method alkali combination process as a raw material. The method comprises the following steps: firstly, producing the light soda ash containing 0.5 to 0.9 percent of NaCl in mass fraction through hot method alkali combination; and secondly, producing the low-salt high-quality dense soda ash containing less than 0.3 percent of the NaCl in mass fraction by adopting a liquid-phase hydration method or a modified solid-phase hydration method, wherein in order to ensure the salinity in the product, a certain amount of saliferous mother liquor of 40 to 80 g/L is needed to be discharged from a hydration system continuously or discontinuously and the saliferous soda mother liquor is sent back into a brine refining system, a Na2CO3 component in the mother liquor serves as a calcium remover, and a NaCl component serves as a raw material component. The method overcomes the defects that an ammonia soda process for producing the low-salt dense soda ash has a large sewage discharge and a combination soda production method cannot normally produce the low-salt dense soda ash; the raw materials can be coarse sea salts and mine salts, or bitterns obtained through solution mining of salt mines can be used directly; and the method has the advantages of no sewage discharge, good product quality and extensive development prospect.

The invention discloses a preparation method of a single-component water-based polyurethane adhesive for use in flexible package compounding. The method comprises the following steps: reacting polyisocyanate with polyester polyol and polyether polyol, adding a chain extender, and continually reacting to obtain a polyurethane prepolymer; continually reacting epoxy resin with a modifier of a silane coupling agent to obtain a modified polyurethane prepolymer; cooling the modified prepolymer, neutralizing and salifying, and adding water for high-speed dispersion to obtain the single-component water-based polyurethane adhesive for use in flexible package compounding. The method is simple in preparation process, and the obtained single-component water-based polyurethane adhesive is convenient to use.

The invention discloses a solid glue stick, and is prepared with watercraft polyurethane latex as a major glue component, water as solvent, sodium stearate as gel, and polyvinyl alcohol and polyethylene pyrrole azululanone as accessory ingredients, and moderate glycerol added as humectant, wherein a self-emulsion method is adopted for the preparation of the watercraft polyurethane latex. The invention has the advantages that coated surface of the watercraft polyurethane adhesive adopted in preparing the solid glue stick is not easy to be damaged; the mechanical property is excellent; the modification is easy; the compatibility with paint is good; the prepared solid glue stick has obvious advantages in properties of assigned model, hardness, coating, and splicing, etc.; the exterior is pure white; the feeling is subtle; the splicing property is good; the drying speed is high; time for paper tearing is less than one minute; the hydrating period is as long as one year; the reserve property is fine.

The invention relates to a nano stannic oxide-graphene composite as well as a preparation method and an application thereof. Firstly, a SnCl4*5H2O solution is added to a graphene oxide aqueous solution and stirred, graphene oxide sheets adsorb Sn<4+>,the graphene oxide sheets adsorbing Sn<4+> are dissolved in deionized water and subjected to ultrasonic treatment after being separated, and an obtained dispersing solution is used as a seed crystal adsorbing solution; a SnCl4*5H2O aqueous solution, a NaOH aqueous solution and a surfactant aqueous solution are prepared respectively; the seed crystal adsorbing solution and the SnCl4*5H2O aqueous solution are mixed, then the NaOH aqueous solution and the surfactant aqueous solution are dropwise added to the solution sequentially, the mixture is stirred, mixed evenly and ultrasonically and then transferred to a closed reaction kettle to be subjected to a hydrothermal reaction, and the nano stannic oxide-graphene composite is obtained after natural cooling, centrifugation, washing and drying. The nano stannic oxide-graphene composite is applied to specific response to ammonia gas under the room temperature condition. Compared with the prior art, the composite has the advantages that the synthesis method is simple and easy to implement, and the shape of a product is controlled.

The invention relates to a method for preparing an alkali type copper molybdate microsphere having a surface nano-whisker structure. The method comprises the following steps of: (1), dropwise adding copper salt solution into molybdate solution, wherein the mol ratio of copper salt to molybdate is 1:1; (2), adjusting the pH of a mixed system obtained in the step (1) to 6, transferring the mixed system into a reaction kettle, stirring magnetically and ultrasonically so that the mixed system is uniformly dispersed, and keeping the temperature at 50-110 DEG C for 1-12h; and (3), cooling to room temperature by the end of the reaction, and centrifuging, washing, drying and collecting a sample so as to obtain the alkali type copper molybdate microsphere having the surface nano-whisker structure. Compared with the prior art, the method disclosed by the invention is simple in process, universal in preparation condition, steady in product morphology, high in purity and simple in product treatment, and is applied to medium-scale industrial production.

The invention relates to a method for preparing 2-(N-alkyl)aminobenzothiazole derivatives by using active alcohol as alkylating reagent. The method is as follows: commercial or easily synthesized 2-aminobenzothiazole compounds used as the starting raw material perform alkylation reaction with alcohol in the presence of the catalytic amounts of copper salt and alkali to obtain the 2-(N-alkyl)aminobenzothiazole derivatives. The method uses environmentally friendly alcohol as alkylating reagent; only one byproduct-water is generated, which can not damage the environment; the reaction has high atom economy, the requirements of green chemistry can be met and the method has wide application prospect.

The invention discloses a double-acting gradually-advancing type prestress plate four-axis pulse electromagnetic shape adjusting and nature adjusting device. An electromagnetic coil is installed on a piston rod of a middle hinged shaft hydraulic cylinder, and the electromagnetic coil can have the movement of rotating around the axis of the electromagnetic coil, moving along the axis of the electromagnetic coil, moving along the Y axis of space and swinging by four degrees of freedom through a horizontally-moving and swing driving assembly. A plate feeding frame assembly is used for positioning a plate through a plate clamping assembly installed on the plate feeding frame assembly, and the plate can be driven to move along the X axis of the space. A flexible die and a frame pressing assembly are matched for bending and pre-loading the metal plate and bearing the pulse electromagnetic force generated during work of the electromagnetic coil. The movement that the plate gradually advances in the length direction of the plate and the movement that the electromagnetic coil gradually advances and adjusts the shape in the width direction of the plate can be sequentially executed alternately, the function of the pulse electromagnetic force generated by the electromagnetic coil on the whole curved surface of the plate is achieved through the cooperation of the two movements, and the shape adjusting function and the nature adjusting function are achieved on the metal plate having a certain initial prestress state.

The present invention belongs to the field of micron/nanometer material preparing technology and hydrothermal synthesis technology, and is especially low temperature process of preparing RE borate crystal with oxide as precursor. In the hydrothermal system, insoluble RE oxide and hydrated boron trioxide or boron trioxide as the boron source and precursor are reacted at 190-280 deg.c for 12-48 hr, and through further washing, the required RE borate crystal is obtained. The present invention provides one inorganic synthesis way, and the production process has no any pollution. The present invention has simple technological process, easy-to-constitute reaction system, high product purity and other advantages, and is suitable for industrial production.

The invention relates to a synthetic method of 2-(N-alkyl)aminooimidazole derivatives. The synthetic method comprises the steps of adding a 2-aminooimidazole derivative, an iridium or rhodium metal complex catalyst, alkali (or no alkali) and alcohol in a reactor under the protection of nitrogen or in an air atmosphere, reacting the reaction mixture for a plurality of hours at a temperature of 100-130 DEG C, cooling to a room temperature, removing the solvent by rotary evaporation, and then obtaining a target compound by column separation. The synthetic method shows three significant advantages that 1) nearly non-toxic alcohol is used as an alkylating agent; 2) the reaction only generates water as a by-product and has no environmental hazards; and that 3) the reaction has high atomic economy. Therefore, the reaction has wide development prospects.

The invention discloses a device and method for producing a fine-denier or super-fine-denier nylon 66 filament and belongs to the technical field of textile materials. The device comprises an evaporator, a preheater, a reactor, a flash vessel and a polycondensation finisher system. A pressure adjusting valve is arranged on the evaporator. A three-section biphenyl secondary-circuit heating method is adopted by the reactor. The polycondensation finisher system comprises a polycondensation finisher, a vapor liquid separator, a vapor purifier device and a nitrogen injection system. A polycondensation reaction is conducted on a water solution of nylon 66 salt through the improved continuous polycondensation system, and then a nylon 66 resin melt is obtained. Spinning is directly conducted on the nylon 66 resin melt to manufacture the fine-denier or super-fine-denier nylon 66 POY filament. According to the device and method for producing the fine-denier or super-fine-denier nylon 66 filament, direct melt spinning is conducted by the adoption of a multi-hole spinneret plate, a POY melt spinning device and the accurate spinning technology through the technical improvement to an existing continuous polycondensation system and more reliable technology control, and therefore the nylon 66 POY filament with the dpf ranging from 0.8dtex to 1.0dtex is manufactured.

The invention relates to a steel casting GS24Mn6 capable of optimizing the chemical compositions of the steel casting GS24Mn6 by adding trace elements V and Ti and adjusting partial residual elements so as to improve and optimize the comprehensive performance of the steel casting GS24Mn6. The material comprises the following optimized chemical components: smaller than or equal to 0.23 percent of C, 1.50-1.65 percent of Mn, 0.30-0.45 percent of Si, smaller than or equal to 0.015 percent of S, smaller than or equal to 0.020 percent of P, 0.20-0.30 percent of Cr, 0.005-0.01 percent of Ti, 0.10-0.15 percent of Mo and 0.05-0.08 percent of V. The invention has the advantages that the welding performance of the steel casting GS24Mn6 is greatly improved, and the comprehensive performance of the material thereof reaches or even exceeds the requirements of partial low alloyed steel so that the steel casting GS24Mn6 has wide industrial development prospects for substituting high-strength high-toughness steel.

The invention initially provides a preparation method of a forging mold by using a composite build-up welding and spray welding method, combined with the characteristics of the build-up welding and the spray welding, and aiming at the status quo of the traditional forging mold manufacturing technology in China at present. The method comprises the following steps of: a. forging a forging mold substrate and carrying out thermal refining, wherein an allowance is reserved at a substrate cavity; b. build-up welding uniformly distributed build-up welding transition layers on a specific cavity surface by using an automatic gas shield build-up welding technique; c. forming a surface reinforcement layer on the surface of the transition layer by using a one-step spray welding method; d. finishing the spray welding and carrying out the remelting and warming at once by using a tempering and slow cooling technique; and e. fine finishing, and putting the size of each part of the cavity in place. Compared with the traditional preparation method of the forging molds, the production cost is reduced, the condemnation factor of a product is decreased, meanwhile, the joint strength of the mold substrate and a welding layer is enhanced, the strength and the impact toughness of the mold are improved, the wear-resisting and the thermal fatigue resistance properties of a surface layer are optimized, and the property of the mold surpasses that of the new-made integral molds of 5CrNiMo and 5CrMnMo.

The invention relates to novel polyetheramine used as a gasoline detergent and a synthetic method thereof. The polyetheramine is shown as a general formula (I) shown in the specification. In the formula (I), n is the number of repetitive units of polyether chain segments and is between 10 and 40, R1 is one of alkyl (C1-2), R2 is one of alkyl (C1-2) or alkoxy (C1-2), and X is an organic group containing amino. The synthetic method includes following two steps: subjecting polyether and ketene or acetoacetate to condensation, and reacting the product of the condensation with an amine to produce the polyetheramine. The polyetheramine is used as the gasoline detergent, inhibits or cleans deposited carbon in engine fuel nozzles, inlet valves and combustion chambers, reduces combustion oil consumption, prolongs service lifetime of engines, reduces discharge of automobile exhaust, and has important application value.

The invention provides a preparation method of a hyperbranched amine polymer modified cotton fiber adsorption material. The preparation method comprises the following steps: firstly, soaking cotton fibers subjected to alkaline treatment into a trimesoyl chloride solution, sealing with a preservative film, carrying out ultrasonic treatment and then taking out the cotton fibers, putting into a thermostat water bath with the temperature of 15 to 50 DEG C, carrying out thermostatic waterbath for 30 to 120 minutes and then cleaning with organic cleaning liquid; secondly, tiling the cotton fibers onfilter paper, putting into a filter and repeating the following operations for 3 to 6 times: pouring a hyperbranched amine polymer aqueous solution from the upper part, sealing, introducing nitrogen,pressurizing to 0.01 to 0.05 MPa, taking out after the pressurization is finished, and then washing with distilled water until the cleaning liquid is neutral; thirdly, tiling the modified cotton fibers on a culture dish and putting into a vacuum drying oven for drying and fixing. The preparation process disclosed by the invention is simple, and the operation is easy to control; the obtained modified cotton fiber material can adsorb and desorb pollutants such as heavy metal ions and organic dyes, so that removal or recovery of the pollutants is realized.

The invention relates to an Mg secondary cell, comprising vanadium oxide nanotube or molybdenum oxide active material as anode, Mg as cathode, Mg(AlBu2Cl2)2 as electrolyte and diaphragm celgard 2300, where the nanotube comprises metallic cation-doped vanadium oxide nanotube, the doping metallic cations account for 10 mol%-30 mol% of the vanadium oxide, and the doping metallic cations are copper or silver ions. And it has higher initial discharge specific capacity and powerful discharge property. And it has advantages of low price and good safety and as a power battery, has great application and development prospects.

The invention discloses a three-color duck roll. A preparation method of the three-color duck roll comprises the following steps: steaming and cooking meat roll prepared by rolling duck meat mud through thin sheets of bean curd and kelps; then carrying out vacuum package, and freezing, wherein according to the formula, the duct meat mud comprises the following raw materials in parts by weight: 40-60 parts of meat mud, 60-80 parts of Chinese yam mud, 6-10 parts of sesame oil, 1-5 parts of green onion, 2-4 parts of non-iodized salt, 1-3 parts of ginger and 0.01-0.05 part of pepper powder, wherein the ratio of the addition amount of the bean curd and the kelps to the duck meat mud is (15-20):(10-14). According to the three-color duck roll disclosed by the invention, strong alkaline food, namely kelps and mildly alkaline foods, namely thin sheets of bean curd and Chinese yam are selected, and are matched with acid food, namely duck meat, so that the three-color duck roll is balanced in nutrition, the nutrition requirements of a human body can be fully met, a bran-new eating variety is provided for a consumer, and the fabrication method is strong in maneuverability and applicable to factory production scale.

The invention relates to a method of preparing methanol through metal hydrothermal reduction of formic acid. According to the invention, a catalyst, a reducing agent and formic acid are added into a reactor according to a mol ratio of 1-5: 0-5: 1, a filling rate is controlled to be 25 to 45%, reaction temperature is 180 to 350 DEG C, reaction pressure is saturated vapor pressure corresponding to the reaction temperature, a pH value is 1 to 1.5, and a reaction lasts for 1 to 12 h; therefore, formic acid is converted into methanol. Compared to the prior art, the method provided in the invention has the following advantages: capacity of highly efficiently converting formic acid into methanol which has a higher utilization value, good selectivity, a simple process, no secondary pollution and immense development potential.

The invention discloses a flow line magnesium electrolysis production method. In the method, a head cell (1), a melt pipeline (2), an electrolysis cell (3) and a tail cell (6) are utilized; and the head cell (1), the electrolysis cell (3) and the tail cell (6) are connected in series through the melt pipeline (2) to form a closed cycle magnesium electrolysis production method. By adopting the method, the defect that the conventional magnesium electrolysis cell can only be operated independently is overcome, and centralized charging and centralized magnesium production of a magnesium electrolysis process are realized. The labor intensity of workers is reduced, and the frequency of conveying high-temperature melt through a crown block in a workshop is greatly reduced, so that the safety production level is improved.

The invention relates to an efficient movable phase change heat storage heating device. At present, a movable phase change heat storage heating device which does not require a pipe network and is high in heat energy recovery efficiency does not exist. The efficient movable phase change heat storage heating device is characterized by comprising a heat storage tank, a heat storage assembly, a steam pipe, a cold water pipe, a plurality of heating pipe rows, a bottom hot water pipe, a condensed water pipe, a hot water thermoregulation pipe and an air exhaust pipe. The heat storage assembly comprises a plurality of heat storage aluminum foil bags, phase change materials are arranged in the heat storage aluminum foil bags, the heat storage aluminum foil bags are installed inside the heat storage tank, each heating pipe row comprises a plurality of steam branch pipes, the heating pipe rows are perpendicularly installed inside the heat storage tank, the cold water pipe comprises a main pipe body and a plurality of branch pipe bodies, the branch pipe bodies are all perpendicularly fixed to the main pipe body and arranged in parallel, the bottom hot water pipe is located on the lower middle portion of the heat storage tank, and the two ends of the hot water thermoregulation pipe are connected to the cold water pipe and the bottom hot water pipe respectively. The efficient movable phase change heat storage heating device is reasonable in structural design and high in heat energy recovery efficiency.

The invention discloses a method for detecting the polysaccharide content of a ganoderma lucidum extract through near-infrared spectroscopy. The method includes the following steps that firstly, a ganoderma lucidum extract sample is selected; secondly, near-infrared spectral acquisition is conducted; thirdly, a wave band area is selected; fourthly, spectrum data are preprocessed; fifthly, a prediction and correction model is optimized; sixthly, a PLS prediction and correction model is built; seventhly, the models are verified. By means of the method, the polysaccharide content of the ganoderma lucidum extract can be quickly and quantitatively detected, and detection time of each sample is within one minute. Under the significance level of 0.05, a prediction value and an actual measurement value almost have no significant difference, detection is accurate and reliable, the method can be directly applied to online detection of the polysaccharide content of the ganoderma lucidum extract, and the method has wide application and development prospects.

The invention provides a method for preparing conducting polyaniline immobilized enzyme with a nanometer structure. The method comprises the following steps of: 1, adding aniline monomers serving as a template, or an acid dopant which contains a surface active agent and serves as a soft template, or polystyrene (PS) serving as a hard template into deionized water in which the aniline monomers are dispersed, and at room temperature, magnetically stirring the mixed solution to obtain uniform emulsion; under an action of electrostatic force, adding aqueous solution of oxidant into the emulsion at one time to obtain the conducting polyaniline with the nanometer structure; and 2, dispersing the obtained conducting polyaniline in buffer solution of phosphoric acid, uniformly stirring the mixed solution, dissolving the free enzyme in the same buffer solution, performing covalent coupling of the mixed solution on a shaking table at the speed of 60 to 120rpm, washing the mixed solution and removing supernatant to obtain the immobilized enzyme having the nanometer structure and using the conducting polyaniline as a carrier. The immobilized enzyme prepared by the method can be applied to the decoloring reaction of dyes, and has the advantages of mild reaction conditions, high degradation efficiency and repeated use.

The invention relates to a preparation method for the agricultural bactericide of a plant source, and belongs to the technical field of agricultural bactericide. The preparation method comprises the following steps: firstly, taking fruit of cubeb litsea tree as raw materials, breaking and homogenizing the fruit of cubeb litsea tree, adding into deionized water for extraction; carrying out transpiration by vapour to obtain effective substances; standing for layering to obtain the essential oil of the fruit of cubeb litsea tree; extracting bacteriocidal substances of alkylphenolic acids in ginkgo leaves by the deionized water; subsequently, extracting antibacterial substances in cinnamon herba pogostemonis by ethyl alcohol; and finally, carrying out heating stirring on ginkgo leaf extracts, cinnamon extracts, litsea cubeba oil and the like; through a synergistic effect among multiple ingredients, achieving a sterilization purpose to obtain the agricultural bactericide of plant source. The agricultural bactericide prepared with the preparation method has a broad-spectrum inhibition function on various plant pathogenic bacteria, is safe to crops, does not pollute environment and has the advantages of high efficiency and low toxicity, and resistance is unlikely to generate to the agricultural bactericide by the bacteria.

The invention belongs to the technical field of residential building entity full life cycle prediction, and discloses a residential building entity full life cycle analysis method based on the Internet and BIM. The method includes: establishing an analysis method for a digital building concept; analyzing influence factors of the entity project in each stage from the perspective of full-factor and whole-process analog simulation; by establishing an application method of an entity project and comparing the application method with a technical result, obtaining key influence factors of the Internet + BIM technology in the development of the building industry and the value of the entity project using the BIM technology, and obtaining a reference scheme of the development of the entity project and engineering application. By establishing the application method of the entity project and comparing the application method with the technical result, the key influence factors of the Internet + BIM technology in the development of the construction industry and the value of the entity project using the BIM technology are obtained, and the reference scheme of the development of the entity project and the engineering application is obtained.

The invention provides a multiparameter input weighted system radiating method which comprises the following steps of: on the basis of an air-cooled radiating mode, collecting the actual temperature value of a key part through integrally considering the influence of a plurality of heat sources of a server on system temperature, and dynamically and intelligently regulating the configuration of system radiating resources by utilizing a comprehensive weighting algorithm to realize the heat radiation of system optimization, wherein the system comprises the following main components: a distributed temperature sensor, a temperature data uploading channel, a weighting processing unit and a radiating resource, wherein the distributed temperature sensor is the basis of a system structure and is responsible for collecting system temperature information; the temperature data uploading channel is mainly responsible for transferring the system temperature information to the weighting processing unit; the weighting processing unit is responsible for converting the system temperature information into a regulating index for the radiating resource; and the radiating resource has the action of improving the corresponding radiating capability according to the radiating requirement computed by the processing unit.

The invention relates to a parallel boat type device for intercepting and recycling floating oil. The device for intercepting and recycling the floating oil comprises traction boats, a piece of assembled type intercepting waterproof cloth, water pumps, water pipes and oil-water separation buckets. In the working process, two boats sail on the water surface in parallel and a V shape is formed between the two boats by the assembled type intercepting waterproof cloth which vertically floats on the water surface; the floating oil between the two boats is gathered at the bottom of the V shape due to the stopping and the guiding of boat bodies and the intercepting device, and the gathered floating oil has a certain thickness, so that the oil and the water can be pumped into the separation buckets on the boats through the water pumps. A valve is respectively installed each of the upper part and the lower part of each separation bucket; since the oil is lighter than the water and is not dissolved in the water, the oil and the water can be separated into two layers in the buckets, the water can be directly discharged out of the boats through the valves at the lower parts and the recycled oil can enter oil tanks through the valves at the upper parts. Each unit of the assembled type intercepting waterproof cloth is composed of an inflation rod, a piece of waterproof cloth, a zip fastener, a snap fastener and a lead weight and the assembled type intercepting waterproof cloth can be composed of different quantities of the units as required.

The invention relates to a preparation method of a carbon-nitrogen-codoped NiFe2O4-Ni nanocomposite material with the cubic structure. The preparation method comprises the steps that firstly, a NiAc2 solution and a K3[Fe(CN)6]2 solution are prepared separately, the NiAc2 solution and the K3[Fe(CN)6]2 solution are stirred and mixed and then subjected to standing for a period of time, precipitates are generated, and centrifuging, washing and drying are conducted to obtain a Ni3[Fe(CN)6]2 nano cube material; secondly, the obtained material is put into a porcelain boat, the porcelain boat is placed in a tubular furnace, protective gas is introduced into the tubular furnace, calcining is conducted by setting a program and increasing the temperature, and after the temperature is decreased, the carbon-nitrogen-codoped NiFe2O4-Ni nanocomposite material with the cubic structure is taken out and obtained. The carbon-nitrogen-codoped NiFe2O4-Ni nanocomposite material with the cubic structure has the excellent properties when the composite material is used for a supercapacitor electrode material. Compared with the prior art, the synthesizing method is simple and easy to operate, and control over the product morphology is achieved.