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Method for melting copper by using waste copper and concentrate of copper sulfide as raw materials
The invention discloses a method for melting copper by using waste copper and concentrate of copper sulfide as raw materials. The method comprises the following steps of: in a mass ratio of the copper content of waste copper to the copper content of the concentrate of copper sulfide of 1:1.3-10, mixing the waste copper and the concentrate of copper sulfide, adding a raw material containing silicon dioxide into the mixture, recycling, continuously putting the mixture into a melting pond, adding fuel and controlling the temperature of the melt to be between 1,100 and 1,300 DEG C, charging oxygen-enriched air, of which the volume concentration is 23 to 85 percent, in the melting pond, and stirring and melting the materials in an oxidizing atmosphere in the melting pond until slag and copper matte are separated by melting; transferring the separated copper matte to an air refining procedure for air refining to obtain raw copper products; transferring the slag to a common electric furnace for melting to further lower the copper content of the slag to below 0.5 percent, and performing water quenching of the slag; and transferring smoke to an acid-making procedure for preparing sulfuric acid. By the method, a large amount of waste copper can be treated, and simultaneously due to the adoption of the waste copper, the slag type of the concentrate of copper sulfide in melting is improved.
Owner:XIZHI ELECTRONICS MATERIALS BRANCH YUNNAN COPPER IND GRP +3
Method for repairing heavy metal-contaminated soil by using oilseed rape-oil sunflower crop rotation technology
InactiveCN104772327ASignificantly enriched featuresAdaptableContaminated soil reclamationSoil scienceSoil heavy metals
The invention relates to a plant restoration technology for heavy metal-contaminated soil, specifically to a method for repairing heavy metal-contaminated soil by using oilseed rape-oil sunflower crop rotation technology. The method overcomes the problems of seasonal restriction, slow growth, low biomass of an overground part, low total absorption and accumulation amount of heavy metals, tolerance and enrichment capability to only one single heavy metal, bad economic benefits and poor comprehensive effects in practical application of plants used in conventional heavy metal-contaminated soil restoration technology. According to the method provided by the invention, oilseed rape and oil sunflower are planted in soil contaminated by compound heavy metals according to the natural growing periods of the oilseed rape and the oil sunflower, and conventional cultivation is carried out; the oilseed rape and the oil sunflower both grow normally in the contaminated soil, no obvious symptom of toxicity appears, and the outputs of the oilseed rape and the oil sunflower are not affected; and since the biomass of the overground parts of the oilseed rape and the oil sunflower is great, a great amount of various heavy metals can be absorbed and accumulated, and in particular, the contents of Cu, Zn, Cd and Hg in the plants of the oilseed rape and the oil sunflower are obviously higher than soil background values, reaching an enrichment level.
Owner:HUNAN AGRICULTURAL UNIV
Method for rapidly culturing colorful tree and broad-leaved tree seedlings in container for forestation
InactiveCN101558727AAvoid natural droughtExtend the time for afforestationClimate change adaptationAfforestationDiseaseInsect pest
The invention relates to a method for rapidly culturing colorful tree and broad-leaved tree seedlings in a container for forestation, which comprises the steps as follows: 1, choosing uncontaminated and full smoke tree seeds and steeping the smoke tree seeds in clean water for storing in sand; then after supplementing water to the smoke tree seeds in spring, sowing the smoke tree seeds after 70 percent of the smoke tree seeds open mouth to sprout; 2, bedding and placing the smoke tree seeds in basins; 3, raising seedlings: sowing the sprouted smoke tree seeds in a seedling basin by a spot seeding method with temperature being controlled at 15-28 DEG C and the humidity at 60 percent, covering the smoke tree seeds with sand, spraying the smoke tree seeds and finally covering the smoke tree seeds with a row cover; then performing thinning, watering, dressing, pinching and preventing disease and insect pest; and 4, foresting. The invention realizes the purposes of raising seedling and forestation in the current year to avoid natural drought, prolongs the forestation time, has no growth delaying period, reduces the forestation cost, increases the emergence rate in unit area and improves the survival rate of forestation.
Owner:天津市蓟州区林业科技推广中心
On-site assembling type extending arm combined node
InactiveCN102425237AImprove bearing capacityImprove plasticityBuilding constructionsEngineering structuresFire resistance
The invention provides an on-site assembling type extending arm combined node, which is adapted to the big-span, high-rise and heavy-load development of a modern engineering structure and the requirement of enduring a mal-condition. The on-site assembling type extending arm combined node comprises a steel tube concrete column, H-type girder mounting plates for extending arms, outer base plates for the extending arms, an H-type girder, and the like. Two H-type girder mounting plates for the extending arms are welded on the steel tube concrete column; cross-shaped node H-type girder mounting plates for the extending arms, T-shaped node H-type girder mounting plates for the extending arms, straight node H-type girder mounting plates for the extending arms and L-shaped node H-type girder mounting plates for the extending arms are respectively selected according to different node forms of a central column of a middle frame, a side pillar of the middle frame, the central column of a side frame and the side pillar of the side frame; and the H-type girder is assembled on site. The on-site assembling type extending arm combined node has the effects and advantages of high bearing capacity, excellent plasticity and toughness, convenience in construction, better fire resistance, excellent economic effects and beautiful and safe nodes and meets the demand of industrialization of the modern construction technology.
Owner:SHENYANG JIANZHU UNIVERSITY
Method of repairing heavy metal contaminated soil by utilizing turmeric
ActiveCN102755990ASignificantly enriched featuresAvoid re-entryContaminated soil reclamationFood chainSlow growth
The invention relates to a plant repairing technology of heavy metal contaminated soil, in particular to a method of repairing the heavy metal contaminated soil by utilizing turmeric, solving the problems of short plants, slow growth, low biomass, less total amount of absorbed and accumulated heavy metals, resistance and enrichment capacity to single heavy metal, poor economic benefit, poor actual application comprehensive effect and the like existing in the conventional heavy metal contaminated soil repairing technology. The method comprises the following steps of: directly planting the turmeric in the heavy metal compositely contaminated soil and performing conventional cultivation. The turmeric can normally grow in the contaminated soil, has no obvious poisoning symptoms and dose not affect the root tuber saponin content in the turmeric; the root system of the turmeric is developed, the biomass is large, and a large amount of various heavy metals can be absorbed and accumulated; and particularly, the contents of heavy metals Zn and Cd in fibrous roots are obviously higher than a soil background value to achieve the level of super enrichment. The method has the advantages of simple cultivation, low management cost, capability of benefiting from one-time planting for many years, extremely high medicinal value and capabilities of preventing the heavy metals from reentering a food chain and gaining certain economic income during contamination treatment.
Owner:HUNAN AGRICULTURAL UNIV
Rotating RTO
InactiveCN107726338ATake advantage ofStructural scienceIncinerator apparatusCombustionCombustion chamber
The invention discloses a rotating RTO. The rotating RTO comprises a thermal oxidation chamber, a rotating regenerative chamber, a rotating valve, a motor, an oxygen supplementing draught fan, an exhaust gas fan, a combustion-supporting burner, a flame arrester, a G-G heat exchanger and a chimney; the rotating regenerative chamber is arranged on the lower portion of the thermal oxidation chamber;the rotating valve is arranged on the lower portion of the rotating regenerative chamber; the motor is arranged on the lower portion of the rotating valve; the flame arrester is arranged on the left side of the rotating valve; the exhaust gas fan is arranged on the left side of the flame arrester; the oxygen supplementing draught fan is arranged on the upper portion of the exhaust gas fan; the combustion-supporting burner is arranged on the right side of the oxygen supplementing draught fan; the G-G heat exchanger is arranged on the right side of the thermal oxidation chamber; and the chimneyis arranged on the right side of the G-G heat exchanger; heat of a combustion chamber is fully utilized, on one hand, the heat is transmitted to a heat accumulator to preheat exhaust gas, and the heatefficiency is improved; and on the other hand, after high temperature flue gas and low temperature flue gas going out because of heat release of the regenerative chamber are mixed, mixed gas enters the G-G heat exchanger, hot air is recycled, the dual effects of energy conservation and environment protection are achieved, and the exhaust gas treatment efficiency reaches 99%.
Owner:JIANGSU BAI NA ENVIRONMENTAL PROTECTION EQUIPCO
Carbon dioxide management system and method
ActiveCN104203745AWill not emitImprove securityPipeline systemsFluid transferredManagement systemStorage tank
A carbon dioxide management system and method are disclosed. The carbon dioxide management system, according to one embodiment of the present invention, comprises: a carbon dioxide injection line for supplying, to a carbon dioxide storage, carbon dioxide temporarily stored in a carbon dioxide storage tank; a booster pump, a vaporizing apparatus, and a heating apparatus disposed in the carbon dioxide injection line; and a carbon dioxide recycling means for recycling the carbon dioxide stored in the carbon dioxide storage tank so as to maintain a constant pressure in the carbon dioxide storage tank when the carbon dioxide is supplied to the carbon dioxide storage.
Owner:SAMSUNG HEAVY IND CO LTD
Vertical hydrofoil paddle stirring device for water treatment
InactiveCN104959067ACompact structureSimple operation and maintenanceTreatment using aerobic processesTreatment with anaerobic digestion processesImpellerMarine engineering
The invention discloses a vertical hydrofoil paddle stirring device for water treatment. The vertical hydrofoil paddle stirring device comprises a motor, a speed reducer, bearings and a shaft, wherein the motor is arranged above the speed reducer; the bearings are arranged under the speed reducer; the free tail end of the shaft is provided with a hub; the circumferential surface of the hub is provided with three lifting lugs which are uniformly arranged in a welding way; the lifting lugs and the upper surface of the hub are in 45-degree included angle arrangement; the lifting lugs are provided with hydrofoil paddles; the length of each hydrofoil paddle is 10m; each hydrofoil paddle is in bending arrangement and comprises a first bending blade, a second bending blade, a third bending blade and a fourth bending blade; the first bending blades are connected with the lifting lugs through plural bolts; each first bending blade and the corresponding second bending blade are in 150-degree included angle arrangement; each second bending blade and the corresponding third bending blade are in 140-degree included angle arrangement; each third bending blade and the corresponding fourth bending blade are in 130-degree included angle arrangement. According to the vertical hydrofoil paddle stirring device disclosed by the invention, the hydraulic retention time is increased, the energy consumption is reduced, and the floating force is increased.
Owner:JIANGSU PHILIP ENVIRONMENT ENG
Method for preventing shaft from cracking in alleviation water-bearing layer by utilizing automatic supply water loss method
The invention belongs to the technical field of shafts for coal mine, and particularly discloses a method for preventing a shaft from cracking on an automatic supply water loss layer water level of an alleviation water-bearing layer. The method comprises a structure of an automatic supply water drill hole and a method, wherein the automatic supply water drill hole and the upper group of water-bearing layer are corresponding provided with a set of drain pipes (bridge-type flower pipes), a middle water separating pipe section is a solid pipe, a set of water filling pipes are corresponding arranged on the middle and lower groups of water-bearing layer, and the bottom is a sand setting pipe; the water of the alleviation water-bearing layer enters into water filling holes through gravels and the drain pipes arranged at the periphery of the drill hole, the water fills a water loss layer through the water filling pipes of the water loss layer under the action of the water level differential pressure, and a purpose that the water supply can stabilize the water level is achieved, gushing sands in a water supply process precipitates the bottom sand setting pipe, the water filling pipe is prevented from plugging, the water filling effect is guaranteed, and a condition that the water level falls so as to cause the transformation and crack of the well wall is reduced and eliminated.
Owner:兖矿能源集团股份有限公司
Method for vehicle exit management in parking system and system therefor
InactiveCN105793890AReduce engineering expensesLower selling priceTicket-issuing apparatusData processing applicationsInformation processingEngineering
The present invention relates to a method for vehicle exit management in a parking system including a parking information display terminal installed on the outside of a parking tower and a parking management information processing device capable of data-communicating with the parking information display terminal, the method comprising the steps of: receiving corresponding vehicle information recognized by an RF card of a vehicle which stops at the entrance of the parking tower from the parking information display terminal by the parking management information processing device; receiving exit standby reservation information from a customer terminal of a vehicle parked in the parking tower by the parking management information processing device; configuring an exit standby turn of a vehicle parked in the parking tower according to the sequence at which the parking management information processing device has received the exit standby reservation information and the reserved exit time; generating exit standby information using the configured exit standby sequence and the vehicle information by the parking management information processing device; and notifying the generated exit standby information to the customer terminal or the parking information display terminal by the parking management information processing device, thereby eliminating inconvenience of mechanical parking tower parking.
Owner:CORRSTECH KOREA
Carbon dioxide management system and method
ActiveCN104204700AEffective liquefactionSave energySolidificationLiquefactionLiquid lineLiquid carbon
A carbon dioxide management system and method are disclosed. The carbon dioxide management system, according to one embodiment of the present invention, comprises: a carbon dioxide gas line which is connected to an upper part of a carbon dioxide storage tank and via which gaseous carbon dioxide travels; a carbon dioxide liquid line which is connected to the carbon dioxide storage tank and via which liquid carbon dioxide travels; a line combining unit to which the carbon dioxide gas line and the carbon dioxide liquid line are connected, so that the gaseous carbon dioxide and the liquid carbon dioxide are mixed; and a carbon dioxide liquefier which is connected from the line combining unit and which is for liquefying the gaseous carbon dioxide.
Owner:SAMSUNG HEAVY IND CO LTD
Intelligent disinfection robot disinfection master controller and disinfection control method thereof
PendingCN113318249AImprove health and safetyAvoid or reduce health and safety hazardsProgramme controlComputer controlControl engineeringUltraviolet lights
The invention discloses an intelligent disinfection robot disinfection master controller. The intelligent disinfection robot disinfection master controller comprises an AGV chassis and a disinfection robot front end, the disinfection robot front end is provided with a human-computer interaction interface unit and a main controller board, a single chip microcomputer chip module, an ultraviolet lamp disinfection control module, a disinfectant atomizer control module, a disinfectant atomizer interface end and a sensor signal module are arranged on the main controller board, a disinfection system comprises an ultraviolet disinfection lamp, an ultraviolet lamp protection cover and an atomizer lifting rod, the ultraviolet lamp disinfection control module, the disinfectant atomizer control module, the disinfectant atomizer interface end and the sensor signal module are respectively in electric and / or communication connection with the single chip microcomputer chip module, and the AGV chassis and a main controller are respectively in communication with the disinfection robot front end and the background. The functions of the robot chassis and a disinfection system can be controlled in a linkage mode, automatic disinfection treatment on public environment sanitation is achieved, the disinfection treatment efficiency is improved, the disinfection management cost is low, and potential safety hazards of public environment health are reduced.
Owner:NINGBO BAYI IND
Once mounting, locating and constructing method for steel ladder outside concrete silo following sliding mould construction
The invention discloses a once mounting, locating and constructing method for a steel ladder outside a concrete silo following sliding mould construction. A construction process comprises the following steps of: leaving an upper inlet on a sliding mould operating platform of the concrete silo and fixing an upper end of a prepared tool type pulling steel ladder on a sliding mould enclosed ring; after sliding the sliding mould operating platform to a preset height during a concrete silo construction process, welding an engineering steel ladder on an outer wall of the concrete silo; and then hanging and welding the tool type pulling steel ladder on the engineering steel ladder; and repeating the steps till completely constructing. According to the method provided by the invention, rental feeof materials about ** Yuan can be saved, the cost of purchasing a safety net foot plank about ** Yuan can be saved, the cost of assembling and disassembling a riding track tower about ** Yuan can be saved, the cost of materials about ** Yuan can be saved, the cost of disassembling a needed machine matched with a tower crane or truck crane about ** Yuan per day can be saved, and the cost of a mounting machine of the steel ladder about ** Yuan can be saved. Totally, the cost about ** Yuan can be saved, a construction period can be reduced by two days, and the method is practical and economical as well as safe and has remarkable composite economic benefits.
Owner:河北省第四建筑工程有限公司
Tile paving process with sound-insulation mortar
The invention discloses a tile paving process with sound-insulation mortar, and belongs to the field of buildings. The tile paving process comprises the following steps of paving neat cement on a concrete floor, and levelling; paving a sound-insulation mortar layer on the neat cement; and after maintaining the sound-insulation mortar layer, paving a cement oil layer on the sound-insulation mortarlayer, then paving tiles on the cement oil layer, and accomplishing the pavement of the tiles with the sound-insulation mortar. According to the process, from the aspect of the construction period, the time for independently making the sound-insulation mortar layer is saved, and the whole ceramic pavement construction time can be saved; from the aspect of cost, the sound-insulation mortar replacescommon dry hard cement mortar, so that the cost of the dry hard cement mortar can be saved; in addition, the construction period is reduced, and the corresponding management cost can be reduced; andfrom the aspect of floor net height, the sound-insulation mortar replaces the common dry hard cement mortar, so that the floor net height can be increased by about 3cm (the thickness of the dry hard cement mortar).
Owner:赵鹏付
Method for improving soil cadmium removal capability of tobacco by use of fertilization and harvesting technology
The invention provides a method for improving the soil cadmium removal capability of tobacco by use of a fertilization and harvesting technology. The method comprises the following steps of: transplanting tobacco seedlings to heavy metal cadmium contaminated soil according to a natural growing period of the tobacco seedlings, performing conventional cultivation, applying additional fertilizers during a vigorous growing period, and harvesting tobacco after the tobacco seedlings are mature; and performing conventional cultivation again, and applying additional fertilizers so as to promote growth of regenerated tobacco, so that the cadmium absorption and enrichment capability is improved by virtue of application of additional fertilizers and the growing process of regenerated tobacco, and thus the purpose of removing excessive cadmium in soil is achieved. The tobacco seedlings can grow normally in cadmium contaminated soil without obvious toxic symptoms and influence on tobacco yield, and the tobacco seedlings can be regenerated; furthermore, the overground part of the tobacco is large in biomass, so that a large amount of heavy metal cadmium can be absorbed and accumulated. The method provided by the invention is relatively simple in cultivation and low in management cost; harvesting can be performed twice through once planting; tobacco has relatively high protein content; after being treated, tobacco can serve as a feed, and heavy metals can be prevented from entering a food chain again by virtue of a utilization mode of the tobacco, so that certain economical benefits can be achieved while pollution is treated.
Owner:HUNAN AGRICULTURAL UNIV
Method for improving internal crystallization of aluminum products
The invention relates to a method for improving internal crystallization of products in nonferrous industries, in particular to a method for improving internal crystallization of aluminum products. The method includes that virgin aluminum serves as a raw material, an rear earth (RE) element is added into a holding furnace, after the holding furnace is full, nitrogen is fed into a prepared powder refining agent tank, the prepared powder refining agent is infiltrated into molten aluminum through nitrogen pressure to be stirred constantly, after fining, aluminum water is stirred evenly, molten aluminum scum is removed, the temperature of the holding furnace is adjusted timely to be kept in a range between 700 DEG C and 760 DEG C, and the molten aluminum is stood for 20 to 40 minutes. According to the method, the technique is unique, improvements of industrial pure aluminum strength and plasticity processed by the RE are larger than those processed by conventional fusing agents, the rate of finished products is improved, the RE value is saved, and the rare earth aluminum ingot loss value is saved.
Owner:QINGTONGXIA ALUMINUM GRP
Subway environmental control machine room fabricated electromechanical construction method based on BIM technology
PendingCN112632684ALow costImprove construction qualityGeometric CADBuilding material handlingReworkLaser scanning
The invention discloses a subway environmental control machine room fabricated electromechanical construction method based on a BIM technology. The method comprises the steps of obtaining a BIM model on a 3D laser scanning site, comprehensively optimizing an electromechanical system model, performing die assembly through various professional models, completing basic model optimization and prefabricating a processing part, through a material statistics function of BIM software, generating required processing part materials and processing styles, carrying out prefabrication processing, using a robot to accurately locate parts, and using a BIM lofting robot to carry out traditional operation modes on a plurality of professional projects at the same time on site. According to the invention, the working efficiency of equipment installation and system debugging is greatly improved, the labor cost, the machine tool use cost, the material cost, the management cost and the like are reduced, the budget control capability is greatly improved, the quality is improved, the rework is greatly reduced, the engineering quality is improved, the safety is improved, problems are predicted in advance, dangerous factors are reduced, the working efficiency is greatly improved, and the disassembly and modification workload is reduced.
Owner:南通装配式建筑与智能结构研究院 +1
Lawn green belt construction method
InactiveCN101810083BWith multiple functionsExtend your lifeHorticultureSoil-working methodsBrickLandscaping
Owner:陈怀茂
Method for repairing soil heavy metal pollution by using ixeris denticulata
InactiveCN105710126ASignificantly enriched featuresAdaptableContaminated soil reclamationFood chainSoil heavy metals
The invention relates to a phytoremediation technology of heavy metal contaminated soil, and solves such problems as incapability of harvesting plants by many times, season limitation, slow growth, low ground biomass, low total quantity of absorbed and accumulated heavy metal and no possession of better economic benefit in a traditional heavy metal contaminated soil repair technology. The method comprises the following steps: ixeris denticulata is planted in heavy metal compound contaminated soil according to natural growing season for routinely cultivating. No obvious poison symptom is generated; the output of ixeris denticulata is not influenced; the ground biomass is high; 4-6 times of clipping can be performed in the growing season without influencing the growing speed; a lot of various heavy metal can be absorbed and accumulated; and the content of the heavy metal in plants is obviously higher than the background value of heavy metal in soil, and heavy metal in the plants reaches an enrichment level. The method is simple in cultivation; the ixeris denticulata, as conventional grass, is higher in economic value, and is detoxified to prevent the heavy metal from entering a food chain again; and the abundant economic incomes can be obtained while the pollution is treated.
Owner:HUNAN AGRICULTURAL UNIV
Production construction method of electromechanical integrated bare concrete beams and columns
InactiveCN109531774AStable jobGuaranteed uptimeCeramic shaping apparatusConcrete beamsManagement process
The invention relates to a building component and a production method thereof, in particular to a production construction method of electromechanical integrated bare concrete beams and columns. The production construction method specifically comprises the steps of assembling and treating a die; limiting to install, and laying a pipeline; vibrating and forming concrete; maintaining and demolding; and performing surface treatment on the component. Compared with a traditional production method of concrete beams and columns, the method has the advantages that a production die plate of the electromechanical integrated bare concrete beams / columns is convenient to assemble and is simple to operate, the quality of bare concrete is guaranteed, decorative materials are not needed on surfaces, and only protective layers need to be sprayed for use, so that the economic benefits are increased; a die plate seam and node control scheme is reasonably designed, so that the phenomena of mortar leakage,die expansion and the like can be reduced, the demand of a user can be preferably met, and the automation level of the production method is high; and in the production mode of the electromechanical integrated concrete beams / columns, high efficiency, high quality and economy of product production are guaranteed, the onsite management investment is reduced in the uniform production mode, and the management process is simplified and cannot be compared with a traditional process.
Owner:山东海龙建筑科技有限公司
Carbon Dioxide Management Systems and Methods
Owner:SAMSUNG HEAVY IND CO LTD
Method for preventing shaft from cracking in alleviation water-bearing layer by utilizing automatic supply water loss method
Owner:兖矿能源集团股份有限公司
Carbon Dioxide Management Systems and Methods
ActiveCN104203745BWill not emitImprove securityPipeline systemsFluid transferredManagement systemCarbon dioxide
Owner:SAMSUNG HEAVY IND CO LTD
Method for restoring heavy-metal-contaminated soil by utilizing oil sunflower planting
The invention discloses a method for restoring heavy-metal-contaminated soil by utilizing oil sunflower planting. The method comprises the following steps of planting oil sunflower in the heavy-metal-contaminated soil according to a natural growing period, and conventionally culturing the oil sunflower. The oil sunflower rapidly grows and has strong root systems, biomass of the overground part of oil sunflower is large, the oil sunflower is drought-resisting and barren-resisting property, has strong tolerance and enrichment property to heavy metal, can grow normally in the heavy-metal-contaminated soil and no obvious poison symptoms appear. The method provided by the invention has the advantages that the selected oil sunflower can absorb and accumulate a large quantity of multiple heavy metals, and particularly, the contents of heavy metals such as Cu, Pb, Cd and As in the plant reach a high enrichment level, and the problems in the existing heavy-metal-contaminated soil restoring technology that the plants slowly grow, the biomass is low, the total quantity of absorbed and accumulated heavy metals is small, the plants only have the tolerance and enrichment capacity to a single heavy metal, does not have the good economic benefits, and has poor practical application comprehensive result.
Owner:HUNAN AGRICULTURAL UNIV
Method for supporting surrounding rock of diversion tunnel
PendingCN113187520AShorten the construction periodImprove efficiencyUnderground chambersTunnel liningMesh reinforcementRebar
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP NO 4 ENG
Method of repairing heavy metal contaminated soil by utilizing turmeric
The invention relates to a plant repairing technology of heavy metal contaminated soil, in particular to a method of repairing the heavy metal contaminated soil by utilizing turmeric, solving the problems of short plants, slow growth, low biomass, less total amount of absorbed and accumulated heavy metals, resistance and enrichment capacity to single heavy metal, poor economic benefit, poor actual application comprehensive effect and the like existing in the conventional heavy metal contaminated soil repairing technology. The method comprises the following steps of: directly planting the turmeric in the heavy metal compositely contaminated soil and performing conventional cultivation. The turmeric can normally grow in the contaminated soil, has no obvious poisoning symptoms and dose not affect the root tuber saponin content in the turmeric; the root system of the turmeric is developed, the biomass is large, and a large amount of various heavy metals can be absorbed and accumulated; and particularly, the contents of heavy metals Zn and Cd in fibrous roots are obviously higher than a soil background value to achieve the level of super enrichment. The method has the advantages of simple cultivation, low management cost, capability of benefiting from one-time planting for many years, extremely high medicinal value and capabilities of preventing the heavy metals from reentering a food chain and gaining certain economic income during contamination treatment.
Owner:HUNAN AGRICULTURAL UNIV
Intelligent contract power grid system based on block chain technology
InactiveCN111062050AData SecurityLow management feeData processing applicationsDigital data protectionPower gridData management
The invention discloses an intelligent contract power grid system based on a blockchain technology. The intelligent contract power grid system comprises a user connection module, an intelligent contract execution module, a blockchain support module and a power grid connection module; the user connection module is used for providing a unified interface for a user, so that the user can interact withthe intelligent contract in the intelligent contract execution module in a completely same data interaction mode; the intelligent contract execution module is used for executing an intelligent contract; and the block chain support module is used for providing a unified interface for accessing block chain data for the intelligent contract in the intelligent contract execution module, and the powergrid connection module enables the power grid to interact with the intelligent contract in the intelligent contract execution module in a completely same data interaction mode. Based on the intelligent power grid platform of the block chain technology, the system can realize data security of the user, data can be ensured even if the user data is transmitted in a public network, and the high management cost caused by centralized data management and data transmission by using a special line is saved.
Owner:深圳市中和智通智能科技有限公司
Tubular lamp and mfg. method thereof
InactiveCN1155981CEasy and Strong ConnectionImprove protectionElectric discharge tubesGas discharge lamp detailsEffect lightEngineering
The present invention provides a tube lamp and its manufacturing method which allow a lighting circuit and a shell to be easily and reliably connected together, which enable automation of a step of connecting the lighting circuit and the shell together, and which require low costs while achieving a high production efficiency. The tube lamp includes a case (2) having a shell (9) at an end thereof, and a lighting circuit (5) housed in the case (2) and having a printed circuit board (12) with a circuit part (13) mounted thereon, wherein the shell (9) and the lighting circuit (5) are connected together without leads.
Owner:PANASONIC CORP
A method of increasing the ability of tobacco to remove soil cadmium by using fertilization and mowing technology
ActiveCN105964681BIncrease productionStrong patienceContaminated soil reclamationToxic symptomFood chain
The invention provides a method for improving the soil cadmium removal capability of tobacco by use of a fertilization and harvesting technology. The method comprises the following steps of: transplanting tobacco seedlings to heavy metal cadmium contaminated soil according to a natural growing period of the tobacco seedlings, performing conventional cultivation, applying additional fertilizers during a vigorous growing period, and harvesting tobacco after the tobacco seedlings are mature; and performing conventional cultivation again, and applying additional fertilizers so as to promote growth of regenerated tobacco, so that the cadmium absorption and enrichment capability is improved by virtue of application of additional fertilizers and the growing process of regenerated tobacco, and thus the purpose of removing excessive cadmium in soil is achieved. The tobacco seedlings can grow normally in cadmium contaminated soil without obvious toxic symptoms and influence on tobacco yield, and the tobacco seedlings can be regenerated; furthermore, the overground part of the tobacco is large in biomass, so that a large amount of heavy metal cadmium can be absorbed and accumulated. The method provided by the invention is relatively simple in cultivation and low in management cost; harvesting can be performed twice through once planting; tobacco has relatively high protein content; after being treated, tobacco can serve as a feed, and heavy metals can be prevented from entering a food chain again by virtue of a utilization mode of the tobacco, so that certain economical benefits can be achieved while pollution is treated.
Owner:HUNAN AGRICULTURAL UNIV
Once mounting, locating and constructing method for steel ladder outside concrete silo following sliding mould construction
ActiveCN102409862BSave rental feeLow management feeBuilding material handlingSafety netEconomic benefits
The invention discloses a once mounting, locating and constructing method for a steel ladder outside a concrete silo following sliding mould construction. A construction process comprises the following steps of: leaving an upper inlet on a sliding mould operating platform of the concrete silo and fixing an upper end of a prepared tool type pulling steel ladder on a sliding mould enclosed ring; after sliding the sliding mould operating platform to a preset height during a concrete silo construction process, welding an engineering steel ladder on an outer wall of the concrete silo; and then hanging and welding the tool type pulling steel ladder on the engineering steel ladder; and repeating the steps till completely constructing. According to the method provided by the invention, rental feeof materials about ** Yuan can be saved, the cost of purchasing a safety net foot plank about ** Yuan can be saved, the cost of assembling and disassembling a riding track tower about ** Yuan can be saved, the cost of materials about ** Yuan can be saved, the cost of disassembling a needed machine matched with a tower crane or truck crane about ** Yuan per day can be saved, and the cost of a mounting machine of the steel ladder about ** Yuan can be saved. Totally, the cost about ** Yuan can be saved, a construction period can be reduced by two days, and the method is practical and economical as well as safe and has remarkable composite economic benefits.
Owner:河北省第四建筑工程有限公司
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