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Mineral separation process of complex fluorite difficult to separate
The invention relates to a mineral separation process, in particular to a mineral separation process of complex fluorite difficult to separate. The process includes utilizing sodium hydroxide to treat oleic acid to obtain modified oleic acid, utilizing concentrated sulfuric acid to treat water glass and obtain acidized water glass, conducting ore grinding on fluorite ores according to the prior art, conducting coarse separation under the temperature of 25-30 DEG C, then conducting seven times fine separation on coarse separation foams and adding the acidized water glass into the foams in the first four times of fine separation to prepare fluorite concentrate. The process can improve separation efficiency of calcium fluoride, silica and calcite, improves quality and recycle rate of the fluorite ores, obtains high quality acid grade fluorite ores and resolves the problem of difficulty in separation of complex fluorite flotation, is remarkable in application effect in separation of the complex fluorite difficult to separate, has repeatability, simultaneously reduces requirements of fluorite mineral flotation for ore temperature, reduces energy consumption, reduces usage of collectingagent oleic acid, reduces environment pollution caused by exhaust of a large amount of waste water containing oleic acid and has better economical and social benefits.
Owner:BAIYIN NONFERROUS GROUP
Preparation method for biomass charcoal adsorbent loaded with chitosan magnetic nanoparticles
InactiveCN104801280AImprove adsorption capacityEfficient removalOther chemical processesWater/sewage treatment by sorptionSorbentMagnetite Nanoparticles
The invention provides a preparation method for a biomass charcoal adsorbent loaded with chitosan magnetic nanoparticles. The preparation method comprises the following steps: preparing biomass charcoal, preparing a chitosan-acetic acid solution, preparing an iron solution and preparing biomass charcoal loaded with the chitosan magnetic nanoparticles. The invention further provides the biomass charcoal adsorbent loaded with the chitosan magnetic nanoparticles. According to the adsorbent, the biomass charcoal is used as a base material and the surface of the adsorbent is loaded with the chitosan magnetic nanoparticles. The adsorbent prepared through the preparation method can adsorb heavy metal, dye and partial anions, and has the advantages of high adsorption capacity, strong magnetism, stable property and high mechanical performance.
Owner:HOHAI UNIV
Mineral processing technology by utilizing grade difference of potassium feldspar
The invention relates to a mineral processing technology by utilizing the grade difference of potassium feldspar. The mineral processing technology comprises the following steps that (1), potassium feldspar raw ore is mined and sorted in a separated mode according to the three classes of low-grade potassium feldspar ore, medium-grade potassium feldspar ore and high-grade potassium feldspar ore; (2), the mineral processing processes of crushing, washing, grinding for grading, desliming, and magnetic separation for deep iron removal are carried out on the low-grade potassium feldspar ore; (3), the mineral processing processes of crushing, washing, grinding for grading, desliming, flotation for mica removal and iron removal, flotation for separating feldspar from quartz, and magnetic separation for deep iron removal are carried out on the medium-grade potassium feldspar ore; (4), the mineral processing processes of crushing, washing, grinding for grading, desliming, magnetic separation for deep iron removal, wet superfine grinding and screening are carried out on the high-grade potassium feldspar ore. The different mineral processing technical schemes are adopted for the potassium feldspar ore of different grades, and the purposes of being free of environmental pollution, simplifying the production processes and efficiently developing and utilizing resources are achieved.
Owner:ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
Method of preparing proteins, chitin and chitosan from degreased shrimp meals of euphausia superba
InactiveCN103613637AEfficient development and utilizationReduce dosagePeptide preparation methodsEthylene diamineEngineering
The invention discloses a method of preparing proteins, chitin and chitosan from degreased shrimp meals of euphausia superba. The method comprises the following steps: 1, extracting the proteins; 2, preparing the chitin; 3, preparing the chitosan. By adopting the method, the proteins with high purity, the chitin and the chitosan with high deacetylation degree are prepared from waste shrimp meals used as raw materials, and effective development and utilization of euphausia superba resources are realized; as EDTA (Ethylene Diamine Tetraacetic Acid) is adopted to carry out decalcification, the decalcification effect is good, the decalcification rate of once decalcification can reach above 95 percent, the EDTA also has a decoloration effect during the decalcification, and the dosage of hydrogen peroxide used as a subsequent decolorant is greatly saved; the used EDTA can be recycled and reused, the recovery rate can reach above 85 percent; in addition, as the reaction is carried out under the neutral and slight alkaline conditions, the characters of the obtained chitin are more stable than those of the chitin obtained by virtue of a hydrochloric acid method, and the product performance is greatly improved; the whole process technology is simple, waste water, waste slag and organic reagents generated in the production process can be all recycled and turned into wealth, and the environment pollution is also lowered.
Owner:青岛福创环境科技有限公司
Mineral separation method for recovering fluorite from flotation tailings of wolframite and scheelite
ActiveCN108672094AEliminate stress and other disadvantagesGood dispersionFlotationKeroseneHigh pressure
The invention relates to a mineral separation method for recovering fluorite from the flotation tailings of wolframite and scheelite. The method comprises the following steps: a modified oleic collector is added into the flotation tailings of wolframite and scheelite, roughing is carried out and then the rough concentrates and tailings of fluorite are obtained, wherein the modified oleic collectoris the combination of oleic acid, kerosene and octylphenyl polyoxyethylene ether; a gangue inhibitor is added into the rough concentrates of fluorite and fine separation working is carried out, wherein the gangue inhibitor is the combination of aluminum sulfate, tannin extract and sodium hexametaphosphate. According to the mineral separation method disclosed by the invention, through improvementfor a flotation reagent, the disadvantages of high pressure, corrosion resistance and the like of a tailing pond, caused due to the difficult sedimentation of tailings, which are brought by the adoption of sodium silicate, acidified sodium silicate and other inhibitors in fluorite flotation in the prior art, are overcome, and safe, environment-friendly and efficient development and utilization forfluorite resources in the flotation tailings of wolframite and scheelite are realized; and meanwhile, the grade and recovery rate of fluorite concentrates are increased, the content of CaF2 in the fluorite concentrates is higher than 95%, the recovery rate is higher than 75%, and good economic benefits and application prospect are achieved.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD
Dual gradient drilling system and dual gradient drilling method based on coiled tubing electric drive
ActiveCN109763771ASafe development and utilizationEfficient development and utilizationFluid removalUnderwater drillingOcean bottomProcess equipment
The invention relates to a dual gradient drilling system and a dual gradient drilling method based on coiled tubing electric drive and belongs to the technical field of natural gas hydrate and seafloor surface oil and gas drilling equipment. A dual gradient drilling downhole blow-out preventer system comprises a pilot hole drilling system and a hydrate stirring and absorbing system, wherein the pilot hole drilling system comprises a coiled tubing, a cable, a hollow electric multistage centrifugal pump, a reducer union, a dual-layer drill rod, an outer casing pipe, a simple wellhead, a casing pipe blowout preventer, a lift pump, an adapter, a connecting sleeve, a hollow motor, a drill bit and a drill bit port; the hydrate stirring and absorbing system comprises the coiled tubing, the cable,the hollow electric multistage centrifugal pump, the reducer union, the dual-layer drill rod, the outer casing pipe, the simple wellhead, the casing pipe blowout preventer, the lift pump, the adapter, the connecting sleeve, the hollow motor, the drill bit and the drill bit port. The dual gradient drilling system and the dual gradient drilling method disclosed by the invention can be used for effectively exploiting marine gas hydrates, improve the exploiting rate and are process equipment and a process method with higher reliability.
Owner:SOUTHWEST PETROLEUM UNIV
Manufacturing method for bamboo and wood oriented strand board for bottom plates of containers
ActiveCN105171883AHigh strengthImprove waterproof performanceLaminationLamination apparatusWood shavingsEngineering
The invention provides a manufacturing method for a bamboo and wood oriented strand board for bottom plates of containers. The method includes the following steps that firstly, bamboo and wood serve as raw materials; secondly, the bamboo and the wood are used for manufacturing bamboo shavings through a chipping machine; thirdly, the bamboo shavings and wood shavings are dried; fourthly, 6-10% of pF glue is applied, and 2-7% of MDI glue is applied; fifthly, oriented laying is performed on a three-layer oriented laying machine; sixthly, the slab of a three-layer oriented structure is manufactured through laying; and seventhly, a rough board which is hot-pressed is cooled in a plate turning cooling device. The method has the beneficial effects that the bamboo and the wood are laid in a layered and oriented manner to manufacture the bamboo and wood oriented strand board which is a good structural material and an outdoor material, and the bamboo and wood oriented strand board is high in strength, good in size stability, high in waterproof performance, environment-friendly and good in machining performance. By using the manufacturing method, the technology is stable in the production process, and the manufactured board meets the requirement of the standard (GB / T19536-2004) of plywood for the bottom plates of the containers in China.
Owner:NANJING FORESTRY UNIV
Technical equipment for peak regulation for solar powered pumped storage electric power generation
InactiveCN1760541APracticalSolve the problem of not being able to continuously provide users with stable energyFrom solar energyMachines/enginesPower stationPower grid
A peak regulation device of pumped storage generating by solar energy not only can convert solar energy to be water energy for developing and depositing solar energy extensively but also can finalize peak regulation of power grid without consumption of power grid energy from traditional pumped storage power station so as to raise electric load supply of power grid maximally .
Owner:HEBEI AGRICULTURAL UNIV.
Shale capillary pressure and water saturation measurement method
InactiveCN106644875AGreat application valueEfficient development and utilizationPermeability/surface area analysisWeighing by absorbing componentShale gasCapillary pressure
The invention discloses a shale capillary pressure and water saturation measurement method. The method includes the steps of shale sample grinding, drying, cooling, moisture adsorption by a saline solution, desorption by a saline solution and measurement. The shale capillary pressure and water saturation measurement method can be used for pore structure studies and determination of porosity, relative permeability, shale wettability and irreducible water saturation of shale reservoir strata, and has extensive application value in terms of reservoir stratum performance evaluation and reserve calculation of shale. Measuring a relationship curve between capillary pressure and water saturation of the shale is of great significance to efficient development and utilization of unconventional shale gas resources.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI
Biochar-supported magnetic substance composite adsorption material, and preparation method and application method thereof
ActiveCN106799208AGuaranteed stabilityQuality improvementOther chemical processesWater contaminantsNickel saltCobalt salt
The invention discloses a biochar-supported magnetic substance composite adsorption material, and a preparation method and application method thereof, and belongs to the field of water treatment. The biochar-supported magnetic substance composite adsorption material is prepared by the following steps: mixing and uniformly grinding a biomass, a cobalt salt and a nickel salt to obtain a mixture, calcining the obtained mixture under the protection of inert gas, and performing cooling. The preparation scheme requires few steps, is environment-friendly, and has broad industrial production prospect, and the biochar-supported magnetic substance composite adsorption material prepared by the preparation method has a good adsorption effect.
Owner:HUANGHUAI UNIV +1
Preparation method of acrylic acid moisturizing composite material
InactiveCN102924644AImprove water absorption and retention capacityEasy to shapeSilica gelLow density
The invention discloses a preparation method of an acrylic acid moisturizing composite material which comprises the following components in part by weight: 100 parts of acrylic acid, 60 parts of water, 20 parts of NaOH solution, 0.5 parts of N,N-methylene acrylic amide, 4 parts of ammonium persulfate, 20 to 100 parts of bentonite, and 40 to 80 parts of silica-gel powder. The moisturizing material has the characteristics of high water absorption, good water retention effect, low density and easiness in forming, and can be applied to moisturizing application fields, such as interior moisturizing decoration, flowerpot moisturizing layers, and the like.
Owner:SHAANXI UNIV OF TECH
Combined collecting agent for flotation of cryptocrystalline graphite ore
InactiveCN105233993AEfficient development and utilizationImprove development and utilization valueFlotationMining engineeringEther
The invention relates to a collecting agent for flotation of cryptocrystalline graphite ore. The collecting agent is a combined collecting agent AM, wherein the combined collecting agent AM is composed of the following components in parts by weight: 60-70 parts of diesel oil, 20-30 parts of ether alcohol and 10-20 parts of C12H25-N(CH3)2CH2COO. The collecting agent has high collecting capacity for cryptocrystalline graphite and excellent selectivity and can obtain high-carbon graphite concentrate from low-grade cryptocrystalline graphite ore through beneficiation, wherein the fixed carbon content of the high-carbon graphite concentrate is 95%.
Owner:HUNAN RES INST FOR NONFERROUS METALS
Method for identifying the start date of snowmelt runoff in Northeast China
ActiveCN109063896AGuaranteed water supply needsGuarantee the water demand for aviationClimate change adaptationForecastingEngineeringBusiness forecasting
A method for identify that start date of snowmelt runoff in northeast China is disclosed, It can reasonably estimate the start date of spring snowmelt runoff, provide a basis for the construction of reliable and suitable snowmelt runoff forecasting model, and further scientifically and reasonably formulate reservoir operation scheme, which can not only ensure the demand of agricultural water supply and shipping water, but also reserve storage capacity for the later flood control, and realize the efficient development and utilization of water resources. The method comprises the following steps:(1) dividing the snowmelt runoff of a watershed; (2) identification of the start date of snowmelt runoff in the watershed; (3) Regularity calibration of snowmelt runoff start date in the watershed.
Owner:STATE GRID CORP OF CHINA +3
Identification and evaluation method for canker resistance of kiwi fruit
InactiveCN107083416AIncrease awarenessPromote healthy and sustainable developmentMicrobiological testing/measurementMicroorganism based processesHigh resistanceHigh humidity
The invention discloses an identification and evaluation method for the canker resistance of a kiwi fruit. The condition that in vitro branch culture after inoculation treatment is carried out at a relatively low temperature and relatively high humidity is ensured through determining reasonable in vitro branch sampling time of the kiwi fruit and innovating an in vitro branch inoculation culture mode; a branch peeling mode is utilized for resistance identification; the canker resistance of the kiwi fruit is identified and evaluated through the branch browning degree, so that the identification method is simple and intuitive; the identification result and the expression of field canker resistance of the kiwi fruit have relatively high consistency; and the method is suitable for most of kiwi fruit varieties. According to the method, recognition on the canker resistance of an existing kiwi fruit variety and other wild germplasm resources is greatly promoted, a producer can select a variety with high resistance for planting according to the requirements, further development and utilization of excellent resistant germplasm resources are facilitated, and healthy and sustainable development of the whole kiwi fruit industry is promoted.
Owner:GUANGXI INST OF BOTANY THE CHINESE ACAD OF SCI
Acute myocardial infarction detection system
ActiveCN105527445AHigh ProspectsEfficient development and utilizationDisease diagnosisBiological testingFluorescenceBiomarker (petroleum)
The present invention relates to the technical field of clinical medicinal detection devices, and more particularly relates to an acute myocardial infarction detection system including a horizontal immunofluorescence chromatography reagent card and a miniature digital detector, the acute myocardial infarction detection system further includes a client side, the miniature digital detector acquires a fluorescent signal of the horizontal immunofluorescence chromatography reagent card, converts the fluorescent signal into an electrical signal, and transmits to the client side by a data transmission chip, and the horizontal immunofluorescence chromatography reagent card is a double-biomarker horizontal immunofluorescence chromatography reagent card. The acute myocardial infarction detection system ensures the accuracy of test results. At the same time, the test results are transmitted to a family doctor or a specialist doctor of a user by the client side to facilitate the professional medical professionals to timely provide prevention, health care, emergency medical treatment guidance and treatment monitoring to patients with acute myocardial infarction.
Owner:叶青
Mineral separation process of complex fluorite difficult to separate
Owner:BAIYIN NONFERROUS GROUP
Combined cooling heating and power system based on liquefied natural gas gasification cold energy and running method
ActiveCN110671840AImprove process energy efficiencyReduce operating energy consumptionHeat pumpsContainer filling methodsProcess engineeringToxic industrial waste
The invention discloses a combined cooling heating and power system based on liquefied natural gas gasification cold energy and a running method, and belongs to the field of heating and refrigerationcombined systems. In the system, a low-temperature boiler, an expander, an LNG gasifier and a working medium pump are sequentially connected through a pipeline to form a loop. The expander is connected with a main shaft of a power generator. An LNG storage tank, the LNG gasifier, a main temperature increasing device, a pressure regulator, a metering and odorization device and a gas pipe network are sequentially connected through a pipeline. An outlet of an air heating tower, a first pump, the low-temperature boiler, the main temperature increasing device and an inlet of the air heating tower are sequentially connected to form a loop. A cold user is connected with the system in a plurality of ways. On the basis of improving the process energy efficiency of a liquefied natural gas gasification station, a multi-energy comprehensive utilization integrated technical solution based on the liquefied natural gas gasification cold energy is disclosed, various cold energy, industrial waste heat,geothermal energy and other renewable energy sources are comprehensively utilized to improve the energy efficiency of an energy system in China, and requirements of different load characteristics aremet.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Preparation method of composite vegetable oil-based polyurethane foam material
The invention relates to a preparation method of a composite vegetable oil-based polyurethane foam material, and belongs to the technical field of polyurethane foam materials. According to the invention, sesame oil and epoxidized soybean oil are used as raw materials to prepare vegetable oil polyols, then hydrogenated castor oil is added to prepare the composite vegetable oil-based polyurethane foam material, and meanwhile, diphenylmethane diisocyanate is added as a raw material. The reaction activity of the diphenylmethane diisocyanate is high, so that the catalyst usage is reduced, the content of harmful volatile organic compounds in the polyurethane foam is reduced, and the safety of the polyurethane foam is improved. The steam pressure of the diphenylmethane diisocyanate is low, so that the polyurethane foam is very convenient to store, transport and produce, the safety of the production process is improved, the danger coefficient of the polyurethane foam in the production processis reduced, and the polyurethane foam prepared from the diphenylmethane diisocyanate has the advantages of being safe in process technology and good in environmental protection performance.
Owner:卜乐乐
Method for preparing clean coal, ammonium fluorosilicate byproduct and sodium metaaluminate product from coal gangue
InactiveCN104787791AShort reaction timeShort processSilicon halogen compoundsSolid fuelsMicrowaveAcid dissolution
The invention discloses a method for preparing clean coal, an ammonium fluorosilicate byproduct and a sodium metaaluminate product from coal gangue. The method comprises the following steps: microwave reaction, microwave acidification, ammoniation absorption and neutralization. Compared with domestic existing methods of acid dissolution, high-temperature calcinations and the like, the reaction time is greatly shortened, the reaction energy consumption is greatly reduced, a technological process is shortened, the whole processing process is low-carbon and environment-friendly, and environment-friendly efficient comprehensive development and utilization of the coal gangue is truly realized.
Owner:GUIZHOU YUANSHENG POTASSIUM TECH
Processing method of wild debregeasia edulis fruits
InactiveCN108541911AEfficient development and utilizationPromote development and utilizationAlcoholic beverage preparationInorganic compound food ingredientsSaccharumSucrose
The invention discloses a processing method of wild debregeasia edulis fruits, and provides a processing method of wild debregeasia edulis fruits, an application of wild debregeasia edulis fruits in functional foods, beverages and health wines with the function of protecting the livers, and a method for preparing liver-protecting health wine by using wild debregeasia edulis fruits as a raw material. The method for preparing the liver-protecting health wine by using the wild debregeasia edulis fruits as the raw material mainly comprises the following step of using wild debregeasia edulis fruitsas a raw material; adding sucrose and sophora japonica honey into the wild debregeasia edulis fruits, wherein the mass ratio of the wild debregeasia edulis fruits to the sucrose and the sophora japonica honey is (1-5) to 1; and performing fermentation by adopting a dry fruit wine fermentation method so as to obtain a debregeasia edulis fruit wine product, which has special aroma of wild debregeasia edulis fruits and is rich in substances such as polyphenols, flavones and the like. The debregeasia edulis fruit wine product has good oxidation-resisting, free-radical-scavenging and liver-protecting effects, and can be used as nutritious health-caring fruit wine. Development and utilization of wild plant resources can be promoted by application of the technology so as to increase developmentstrength of novel foods and utilization of wild plant resources, and thus, benefit and efficiency improvements of the agriculture and the food industry are achieved; so that, the processing method ofthe wild debregeasia edulis fruits has very good application prospects.
Owner:SHAANXI NORMAL UNIV
Comprehensive cultivation method for improving salt tolerance of millet in saline-alkali land
ActiveCN109169063AGood output stabilityIncrease productionCereal cultivationSowingAgricultural science
The invention discloses a comprehensive cultivation method for improving salt tolerance of millet in a saline-alkali land. The method comprises the following steps: (1) variety selection is carried out based on the land: a planted millet variety is selected according to the soil salt content of the saline-alkali land; (2) soil treatment is carried out: plough pan is broken through deep tillage, straw returning to subsoil is carried out, and salt return to the soil is suppressed; (3) green fertilization is carried out: a slow / controlled release fertilizer and a bio-organic fertilizer are selected, the soil salt input is reduced, and amendment fertilization is carried out; (4) incremental sowing is carried out: the sowing amount is controlled at 550 to 600 g / mu; and (5) salt control management is carried out: a calcium solution is sprayed at a seedling stage and timely irrigation is carried out at jointing and heading stages. Through coordinated use of multiple technical means, high-efficiency cultivation of millet in the saline-alkali land can be realized, which is of great significance for realizing adjustment and optimization of the agricultural structure in the saline-alkali land, transforming the agricultural development mode and promoting the three-component planting structure in the saline-alkali land.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
In-situ online characterization method for structural characteristics of micro-fine particle iron mineral aggregate
PendingCN113713968AEfficient development and utilizationHigh Acquisition AccuracyImage enhancementImage analysisSeparation technologyEngineering
The invention belongs to the field of mineral separation, and particularly relates to an in-situ online characterization method for structural characteristics of a micro-fine particle iron mineral aggregate. According to the method, a high-speed camera shooting technology and a focused light beam reflection real-time measurement technology are adopted to carry out real-time acquisition on image characteristics and particle size composition conditions of iron mineral aggregates in the micro-fine particle iron mineral agglomerating and size mixing process, and then an image analysis technology is combined to carry out real-time characterization on structural characteristics of the micro-fine particle iron mineral aggregates. The method has the characteristics of high acquisition precision and high acquisition speed. Real-time monitoring is carried out in the large-scale continuous production process of a dressing plant, on-line real-time regulation and control are carried out on a mineral aggregate structure by adjusting process parameters according to a characterization result collected in real time and a separation index, and therefore the process parameters of an agglomeration separation process with the better separation index are selected out. Technical support is provided for application of the micro-fine particle iron ore agglomeration separation technology, and efficient development and utilization of micro-fine particle complex refractory iron ore resources are achieved through the agglomeration separation technology.
Owner:NORTHEASTERN UNIV
Leuciscus waleckii-pasture comprehensive planting and breeding saline-alkali soil improving method
InactiveCN108935239AImprove water qualityImprove the efficiency of ecological farmingClimate change adaptationPisciculture and aquariaAlkali soilWater quality
The invention discloses a leuciscus waleckii-pasture comprehensive planting and breeding saline-alkali soil improving method, and relates to a saline-alkali soil improving method, in particular to a method adopting leuciscus waleckii-pasture comprehensive planting and breeding for saline-alkali soil improving. The problems that according to existing saline-alkali soil improving methods, the improving efficiency is low, the project scale is large, the investment and operation cost is high, and the improvement effect is poor are solved. The leuciscus waleckii-pasture comprehensive planting and breeding saline-alkali soil improving method comprises the steps of 1 laying out the saline-alkali soil; 2, performing soaking and flushing; 3, preparing a culture pond; 4, performing fingerling stock;5, performing culture management, wherein feed feeding is performed, the oxygen content in water is controlled, the water quality is regulated, and bacillus powder is added into the culture pond periodically; 6, utilizing pond culture water in the culture pond for performing soaking and flushing in a plurality of land parcels to be treated. The method is used for saline-alkali soil improvement.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
A method for improving carbonate-type saline-alkali land by fish farming
ActiveCN108901941BImprove water qualityImprove the efficiency of ecological farmingClimate change adaptationPisciculture and aquariaAlkali soilEnvironmental engineering
The invention discloses a method for adopting fish culture for improving carbonate-type saline-alkaline land, and relates to a method for improving the carbonate-type saline-alkaline land. The methodsolves the problem that an existing method for improving the carbonate-type saline-alkaline land has a poor improvement effect and complicated means. The method comprises the steps of equally dividingthe saline-alkaline land into several saline-alkaline land units, building a dam at the edges, digging a ditch in the outer side of the dam, laying water collection branch pipes and water collectionmain pipes in a soil layer, and forming water outlets of the water collection main pipes in a water collection pool outside the saline-alkaline land; planting forage grass or saline-alkaline-tolerancecrops in each saline-alkaline land unit, selecting a pond, afterwards, stocking fingerlings, putting feed, managing culture, regulating and controlling the water quality, and utilizing pond water forsoil irrigation and washing. The method integrates regulation and control of the water quality through biological floccules, scientific oxygen aeration and scientific feeding, and the purpose that bottom mud of the pond is restored, the alkalinity of the saline-alkaline land is reduced, the water quality environment of the pond is improved, and putting of feed in the culture process is lowered. The method is suitable for improving the carbonate-type saline-alkaline land.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
Saline-alkali ditch slope repairing method and application by cultivating Bermuda grass with plant growing bags
InactiveCN109267577ASalt tolerantFast growthWater resource protectionExcavationsRevegetationChinese characters
The invention discloses a saline-alkali ditch slope repairing method by cultivating Bermuda grass with plant growing bags, which comprises the following steps of: (1) preparing plant growing bags: placing the grass stems of Bermuda grass into plant matrices, wrapping with non-woven fabric, sealing, and making into the shape connected by a plurality of the Chinese character 'Tu'; (2) stacking the plant growing bags: the plant growing bags are staggered and stacked according to the zipper type; (3) fixing the plant growing bags: as for a slope with the gradient less than 45 degrees, fixing is not needed; as for the slope with the gradient larger than 45 degrees, an anchor rod is used for fixing; (4) curing the plant growing bags: trimming is conducted when the Bermuda grass grows to 15cm; irrigation is carried out in time under the condition of drought until a plateau is formed; in the period of accumulation of salt in the surface soil, the leaves are sprayed with spermidine to improve the salt tolerance. The saline-alkali ditch slope repairing method and application by cultivating Bermuda grass with the plant growing bags achieve the stabilization and vegetation restoration of the saline-alkali ditch slope through the synergistic use of a plurality of key technical means, and have important significance for the efficient development and utilization of the saline-alkali land andthe reconstruction of the fragile ecology of the saline-alkali ditch.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
Two-level optimization method for grid-connected microgrid based on two-level demand response
ActiveCN108009693BEfficient development and utilizationIncrease the proportionForecastingSingle network parallel feeding arrangementsPower usageClean energy
The invention relates to a two-level optimization method for grid-connected microgrids based on two-level demand response. The demand response layer guides users to actively track the power generation output of clean energy through one-level optimization, promotes the efficient development and utilization of clean energy, and improves the efficiency of clean energy. The proportion in the terminal energy consumption, through the adjustment of the demand load through the secondary optimization, forms a more stable power load operation state and improves the output stability of the controllable micro-source. On this basis, the microgrid layer minimizes the comprehensive operating cost from the perspective of microgrid economy. Fully consider the demand side response based on the time-of-use electricity price to construct a reasonable two-layer optimization model of the grid-connected microgrid and adopt the proposed genetic algorithm based on simulated annealing to solve the model, which improves the convergence speed and accuracy of the model solution.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Coal and gas exploitation integrated permeability-increasing enhancer as well as preparation method and application thereof
ActiveCN112342007AThe number of pores increasesReduce mineral contentOther gas emission reduction technologiesFluid removalProcess engineeringChloride
The invention belongs to the technical field of efficient and safe production of mines, and discloses a coal and gas exploitation integrated permeability-increasing enhancer as well as a preparation method and application thereof. The coal and gas exploitation integrated permeability-increasing enhancer is composed of, by mass, 6%-10% of 20mol / l concentrated nitric acid, 1%-5% of N-lauroyl creatine sodium, 2%-6% of 1-butyl-3-methylimidazolium chloride and mine dustproof water. The coal and gas exploitation integrated enhancer provided by the invention can improve the wettability of a coal bodyby physicochemical modification of the coal body, inhibit and reduce the generation of dust in a coal seam exploitation process, greatly improve the permeability of the coal body, improve the coal seam occurrence and exploitation conditions, facilitate efficient development and utilization of coal seam gas, improve coal bed gas exploitation, relieve energy shortage, prevent gas disasters of underground coal mines, reduce greenhouse gas emission, facilitate efficient co-exploitation of coal and coal bed gas, and improve the safe and efficient production level of coal mines in China.
Owner:SHANDONG UNIV OF SCI & TECH
Combined heat, power and cooling system and operation method based on liquefied natural gas gasification cold energy
ActiveCN110671840BImprove process energy efficiencyReduce operating energy consumptionHeat pumpsContainer filling methodsProcess engineeringCooling energy
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
A beneficiation process utilizing grade differentiation of potassium feldspar
InactiveCN103990541BNo pollution in the processEfficient development and utilizationWet separationIron removalLower grade
Owner:ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
Carbon-to-peak carbon neutralization data processing system and method and computer equipment
PendingCN114297853AAchieving comprehensive aggregationEfficient development and utilizationDesign optimisation/simulationData processing systemData class
The invention discloses a carbon-to-peak carbon neutralization data processing system and method and computer equipment, and the system comprises a data obtaining module which is used for obtaining carbon-to-peak carbon neutralization data, the carbon-to-peak carbon neutralization data comprises carbon source data and carbon sink data, and comprehensive summarization of the carbon-to-peak carbon neutralization data is realized; the parameter extraction module is used for obtaining input data types and parameters based on the carbon source data and the carbon sink data, and accurately extracting multi-variety and multi-aspect carbon peak carbon neutralization data; the data checking module is used for inputting the data types and the parameters into a preset carbon neutralization database and checking the carbon source data and the carbon sink data to obtain checking results of the carbon source data and the carbon sink data; and the path generation module is used for analyzing based on the checking result to obtain a carbon-to-peak carbon neutralization realization path, and realizing safe and efficient development and utilization of carbon-to-peak carbon neutralization data.
Owner:BEIJING E HUALU INFORMATION TECH
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