139results about How to "Control formation" patented technology

The invention provides a garbage compression leachate comprehensive waste water treatment device and technological method. The device comprises a grille, a waste water storage tank, an ultrasonic Electro-Fenton reactor, an intermediate water storage tank, an ultrasonic vibration film reactor and a vortex vibration film filtration system, wherein the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system are sequentially connected. The device further comprises a sludge dewatering drying pool which is connected with a vortex energy-saving heat pump flash evaporator of the vortex vibration film filtration system and provided with a circuit connected with the ultrasonic vibration film reactor. Waste water sequentially flows through the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system for redox reactions and filtration. The device is high in operability, high in regeneration cycle use rate and low in operation cost.

The invention relates to a method for preparing mesoporous gamma-Al2O3 by a dynamic hydrothermal method, belonging to the field of preparation of inorganic porous materials. The invention aims to solve the problems that in the prior art, reaction steps are multiple, experimental conditions are difficult to control, products are incompletely crystallized, the reaction time is too long, and a static reaction does not facilitate full contact among reaction materials. The method comprises the following steps of: adding inorganic aluminum salt and a precipitating agent into surfactant solution respectively, and uniformly mixing the inorganic aluminum salt with the precipitating agent; continuously stirring the mixed solution, and performing hydrothermal treatment; and washing and calcinating obtained products after finishing the reaction, and thus obtaining the mesoporous gamma-Al2O3. The method has the advantages that: the reaction is performed more fully, the formation of alumina precursors can be simply controlled, the formation of mesoporous alumina can be effectively controlled, the crystallization time is shortened to be less than 24 hours, the preparation period is short, and the method is suitable for large-scale continuous production.

The invention discloses a novel environment-friendly efficient microorganism water quality purifying mixture and a preparation method thereof. The microorganism water quality purifying mixture is a mixed microorganism bacterial agent mainly consisting of high-concentration bacillus subtilis liquid and high-concentration bdellovibro bacteriovorus liquid, and is prepared from the following raw materials in percentage by volume: 10-50% of bacillus subtilis liquid, 20-60% of bdellovibro bacteriovorus liquid, 0.5-6.0% of normal saline and 0.5-15% of trace element solution. The novel environment-friendly efficient microorganism water quality purifying mixture disclosed by the invention integrates the advantages of the bacillus subtilis in purifying water quality and the bdellovibro bacteriovorus in preventing and treating diseases, has the functions of purifying water quality, preventing and treating diseases and replacing antibiotics, and realizes a function of improving the water for aquaculture.

The invention discloses a preparation method for a crosslinked gelatin antimicrobial film material. The method comprises the following steps of: (1) adding glycerol into gelatin aqueous solution; (2) adding an antimicrobial agent into the solution obtained in the step (1) and dissolving with stirring; (3) adding a crosslinking agent and reacting at the temperature of 45 to 55 DEG C for 20 to 40 minutes under the condition of magnetic stirring; and (4) performing vacuum degassing on the material obtained in the step (3) to obtain the film, wherein the antimicrobial agent is nisin or lysozyme. By the method, the release speed of the antimicrobial agent in the film material can be scientifically adjusted and the purpose of controlled release is realized. The crosslinked gelatin antimicrobial film material can be applied to an inner packaging material for food and aims to solve the food safety problem caused by that the microorganisms grow on the surface in the storage process of the food. The protein-lysozyme/nisin composite antimicrobial film material prepared by the method has great application potency of improving food quality and prolonging the shelf life of the food.

The invention discloses a device for preparing distorted-structure polymer micron/nano composite fiber and a method thereof. The device provided by the invention consists of at least a spinneret set and a receiving device. Two spinnerets in the spinneret group are respectively imposed with positive and negative voltage of different magnitudes and added with components of different shrinkage rates; after being ejected out under the effect of positive and negative voltage and agglutinated, the two components continue to extend under the effect of electric field, then form the composite fiber with the solvent volatilization and finally are received by the receiving device. The composite fiber on the receiving device shrinks due to the resilience caused by charge transfer and then forms distorted fiber due to different shrinkage rates of the two components. According to differences of component properties, voltage and relative positions of the two spinnerets of the receiving device, distorted fibers with different morphologies can be prepared. The invention solves the control problem of the distorted structure and is applicable to large-scale production with simple method and low cost.

The invention relates to a method for defining a fast-growing plant scope, and aims to screen fast-growing, high-yield and high-carbon capturing efficiency plants for the preparation and storage of carbon storage profiles, papermaking, chemical raw materials, fertilizers, building materials, packaging materials, combustion power generation, replacement of fossil energy and the like to realize negative growth of global atmospheric greenhouse gases, adjust a greenhouse effect and control the formation of haze. The method comprises the following steps of (1) defining a selection range; (2) determining each physiological and growth index of fast-growing plants; (3) determining high-quality plants in a community; (4) determining the cover degree or the coverage rate of the plants, and classifying the plants according to the step (2); (5) determining the biomass of the high-quality plants, and classifying the plants again according to the step (2); (6) determining organic matters of a surface layer soil sample or the water quality standard of a water sample in the selected community, and performing comparison according to the step (2); (7) determining the propagation capability of the high-quality plants, and performing removal according to the step (2); and (8) finishing the definition when the accuracy is over 90 percent.

A solid hollow fiber cooling crystallizer and method for crystallizing aqueous and organic solutions are provided. The solid hollow fiber crystallizer (SHFC) for carrying out cooling crystallization of inorganic/organic microsolutes/macrosolutes from solution generally includes a bundle of non-porous hollow fibers mounted within a shell where a feed solution for crystallization flows through the lumen side of the hollow fibers and a cooling solution flows through the shell side to form nuclei and subsequently crystals in the feed solution at a temperature below its saturation temperature. The solid hollow fiber crystallizer may be combined with a mixing device, such as a completely stirred tank or static mixer, to further effectuate crystallization. The solid hollow fiber crystallizer may be operated in a number of modes including feed recycle mode, once through mode, SHFC-in-line static mixer in series mode, and SHFC-CST in series mode. The advantages of solid hollow fiber cooling crystallization in comparison to conventional crystallization processes include improved temperature control between crystallizing solution and coolant, higher nucleation rates, improved control of crystal size and crystal size distribution, smaller crystal size, capability for decoupling crystal nucleation and crystal growth, decreased fouling of process equipment, and improved process scale-up.

The invention relates to an air compressor with ultrasonic bearings. The air compressor with ultrasonic bearings comprises a shell, a motor stator, a motor rotor and a rotor shaft from outside to inside, and further comprises the ultrasonic bearings and a spiral groove type thrust bearing, wherein bearing bushes are arranged at the two ends of the shell, impellers are arranged at the two ends of the rotor shaft respectively, the impellers are sleeved with impeller shells, the impeller shells are in sealing connection with the bearing bushes and are provided with air inlets and air outlets, the air outlet of the impeller shell at one end is connected with the air inlet of the impeller shell at the other end, the ultrasonic bearings are arranged on the bearing bushes at the two ends and are in noncontact connection with the rotor shaft, the spiral groove type thrust bearing is arranged on the part, between the bearing bush at one end and the impeller at the same end, of the rotor shaft, and a thrust bearing cap is arranged between the spiral groove type thrust bearing and the corresponding impeller. Compared with the prior art, the air compressor with ultrasonic bearings has the advantages of being high in rotation speed and efficiency, long in service life, free of lubricating oil and the like.

The invention discloses a method for preparing the hydrate of L-menthol glyoxylic ester by taking a solid acid as a catalyst. The preparation method takes cyclohexane as a water-carrying agent; a reaction liquid A is obtained by the reflux heating and the water diversion of L-menthol and glyoxylic acid aqueous solution under the catalysis of the solid acid and filtered to remove the solid acid, and an organic phase obtained from separation adjusts pH to 4.9 to 5.1; a sodium bisulfate aqueous solution is added to fully react with the A and the obtained reaction liquid B is separated to obtain a water phase to adjust the pH to 7.1 to 7.5; formaldehyde aqueous solution is added and hydrolysis is carried out to obtain the hydrate of L-menthol glyoxylic ester. The method of the invention takes the solid acid as the catalyst, which is easy to be operated, adopts the catalyst which is easy to be separated and can be recycled, thus reducing waste acid emission during the production process, controlling the formation of side products better and having the advantages of high yield and high product purity, etc.

A method for building two-dimension orderly distributed Si quantum spot graphic nanameter structure is to process a phase-shift grating form board on the film of a-Si or a-SiNx: H/a-Si: H/a-SiNx: H then to crystallize it by laser interference, the laser beam arrives at surfaces of a-Si film or a-SiNx: H/a-Si: H/a -SiNx: H via the form board to form beam spots of two dimension periodic distribution of the energy density to make a -Si: H film to realize localized crystallization, that is to form nanometer Si quantum spot array of two-dimension space orderly distributed in the film.

The invention discloses an anticorrosion surfacing method for the inner wall of a steel pipe welding seam. The method is different from the general steel wear-resistant surfacing and the size recovery surfacing and is the anticorrosion surfacing method for the inner wall of the pipe end of a steel pipe on the premise of guaranteeing the good welding performance and the anticorrosion performance of the pipe welding seam. The method is the technology for guaranteeing the continuity of an anticorrosion layer of the inner wall of the steel pipe and belongs to the main part of the inner surfacing anticorrosion technology of the steel pipe welding seam. According to the method, through floating turning of the inner wall of the pipe end, the cleanness of the surface of a pre-surfacing base metal is improved, and the quality of a surfacing layer is guaranteed; and through interface vacant-combustion solid solution, smooth transition of an anticorrosion coating and the anticorrosion surfacing layer of the inner wall of the steel pipe is guaranteed. By the adoption of the method, the anticorrosion performance of the anticorrosion surfacing layer and the continuity of the anticorrosion layer of the inner wall of the whole steel pipe can be guaranteed, it also can be guaranteed that the cut-off, caused by input of energy of surfacing lines, of the pipe end of the steel pipe does not exceed the range specified in the pipeline steel pipe standard, and the practicability of the inner surfacing anticorrosion technology for the steel pipe welding seam is guaranteed. The effect of the anticorrosion surfacing for the inner wall of the steel pipe welding seam is shown in a figure in the abstract.

The invention provides a heat exchange tube, a manufacturing method of the heat exchange tube and a heat exchanger with the heat exchange tube. Arc-shaped grooves perpendicular to the length direction of the heat exchange tube are formed in the surface of the heat exchange tube, the arc-shaped grooves are distributed in a discontinuously staggered mode in the circumferential direction of the heat exchange tube, and the arc-shaped grooves are evenly distributed in the length direction of the heat exchange tube. The surface of the heat exchange tube is designed to be of the structure that the arc-shaped grooves are formed in the discontinuously staggered mode, and the heat exchange area of the heat exchange tube can be effectively increased through the structure. Meanwhile, through the structure that the arc-shaped grooves are formed in the discontinuously staggered mode, gas can generate turbulent flow with strong impacts between clearances of the discontinuously staggered arc-shaped grooves, the impact force of the turbulent flow to the inner wall of the heat exchange tube is enhanced, accumulation of carbon in the gas is effectively reduced, and generation of the accumulated carbon is controlled.

The invention discloses an ashless antioxidant lubricating oil additive. The ashless antioxidant lubricating oil additive comprises the following components: A, dialkyl dithio-carbamate; B: hindered phenol ester; C, alkylated diphenylamine; and D: an N-phenyl-a-naphthyl amine compound. The additive can significantly improve the oxidation problem of lubricating oil, and has an excellent ashless antioxidant effect. The invention also provides a composite lubricating oil additive prepared from the ashless antioxidant lubricating oil additive, which can also significantly improve the oxidation problem of lubricating oil and has an excellent ashless antioxidant effect. In addition, the invention also provides a lubricating oil composition containing the additives, and the lubricating oil composition has an excellent ashless antioxidant effect and a long service life.

The invention discloses a chemical fuel oil additive and a compound fuel oil additive. The chemical fuel oil additive comprises the following components in percentage by mass: 20-34% of polyurethane, 23-40% of polyisobutene amine and 39-53% of ferrocene; and the compound fuel oil additive comprises the following components in percentage by mass: 60-80% of a physical fuel oil additive and 20-40% of the chemical fuel oil additive which comprises polyurethane, polyisobutene amine and ferrocene. According to the chemical fuel oil additive and the compound fuel oil additive disclosed by the invention, the chemical fuel oil additive is added based on the physical fuel oil additive so as to ensure that the formation of nozzle deposits and air inlet valve deposits can be effectively controlled, combustion chamber deposits can also be effectively removed, and the production of new deposits can be inhibited. In addition, the compound fuel oil additive disclosed by the invention is safe and environment-friendly to use, and can also be used for effectively reducing the emissions of three major pollutants namely CO, HC and NOX in vehicle tail gas and reducing the emission of PM.

The invention provides a jujube growth conditioning nutrient solution for preventing and suppressing fruit shrink disease and a preparation method thereof. The nutrient solution comprises water, manganese sulfate, zinc sulfate, boron sulfate, ammonia molybdate, gibberellin and brassin lactone. The preparation method comprises the following preparation processes: adding the water into the manganesesulfate, the zinc sulfate, the boron sulfate and the ammonia molybdate, stirring together, putting into a reaction kettle after fully mixing evenly, heating, putting into a cooling tank after reacting, cooling, then putting back to a stirrer, adding the gibberellin and the brassin lactone into the stirrer sequentially and stirring evenly. The nutrient solution can provide nutrient components required by the development of jujube fruits and the cleavage of cells, condition the growth mechanism of the jujube fruits, enhance the reverse resistance of the jujube, replenish trace elements and extraneous-source hormones required by the jujube fruits, promote the continuity of the cell cleavage of the jujube fruits, strengthen the synchronous effect of various hormones, such as growth hormones,the gibberellin, cell cleavage hormones and the like, and the concentrated supply of various trace elements in the bodies of the jujube fruits and effectively control the fruit stalks of the jujube fruits to form a separation layer, thereby achieving the aims of preventing and suppressing the occurance of the fruit shrink disease of the jujube fruits.

The invention discloses a direct steel making alloying metal oxide core-spun yarn and a manufacturing method thereof, and belongs to the technical field of direct steel making alloying process. In the core-spun yarn, core powder thereof mainly adopts metal salt particles, with high stability, formed by performing high-temperature calcining for balls; and the balls are dryly pressed by metal oxides and alkaline earth metal carbonate. The manufacturing method of the core-spun yarn comprises the following steps: heavy metal oxides and alkaline earth metal carbonate are respectively crushed to proper particle sizes; then, a bonding agent is added for mixing to form balls for calcining; metal salt obtained through calcining is crushed, screened and classified; and after the obtained metal salt particles are uniformly mixed with a reducing agent according to a mass ratio, a core-spun yarn cover is used for coating to obtain the core-spun yarn. The core-spun yarn, manufactured by the method, alloys molten steel, so that the yield of the steel can be prominently improved, and the stability of the yield is guaranteed.

The invention relates to a preparation method of nutritious biscuits with high content of kudzu vine powder, and belongs to the technical field of health-care food. The nutritious biscuits consist ofthe following raw materials in parts by weight: 5-100 parts of kudzu vine powder, 5-100 parts of low gluten wheat flour, 3-50 parts of whole juice of eggs, 3-50 parts of water, 2-30 parts of butter, 2-30 parts of saccharose, 0.01-2 parts of salt and 0.01-2 parts of baking powder. The preparation method of the nutritious biscuits with the high content of the kudzu vine powder comprises the following process steps: treatment of raw materials: softening the butter, beating eggs and sieving the kudzu vine powder; adding the saccharose, the salt and the baking powder in the water, and then adding the beaten egg liquid and the butter; then adding the kudzu vine powder, the wheat flour and a paste and standing; and finally baking, discharging from an oven and packing a finished product. The content of the kudzu vine powder of the finished product is 27-40%. In the method, the roots of kudzu vine are taken as main raw materials, the roots of kudzu vine, which are both medicinal and edible, areutilized, and furthermore, brand-new functional biscuits which are high in content of the kudzu vine powder, are green and healthful, taste crisp, and are nutritious and delicious can be provided forpeople, and the market prospect is wide.