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40results about How to "Avoid land occupation" patented technology
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Method for calculating sub-module quantity in bridge arm of modular multi-level current converter
InactiveCN102820671ALow costReduce in quantityElectric power transfer ac networkTransformerPower grid
The invention relates to a method for calculating sub-module quantity in a bridge arm of a modular multi-level current converter, belonging to the technical field of direct current power transmission. The method comprises the following steps of firstly setting a line voltage effective value of an alternating current power grid, determining rated voltage at the direct current side of the modular multi-level current converter according to the transmission capacity of a power transmission line; determining the rated voltage of each sub-module in the modular multi-level current converter according to the used switch apparatus in the modular multi-level current converter; calculating the sum of the doping quantity of the sub-modules of an upper bridge arm and a lower bridge arm of the current converter according to the rated voltage at the direct current side and the rated voltage of the sub-modules; and finally calculating to obtain the cascade quantity of the sub-modules of each bridge arm in the modular multi-level current converter according to the rated voltage of the sub-modules, the line voltage effective value of the alternating current power grid and the sum of the doping quantity of the sub-modules. The method provided by the invention can be used for reducing the cost of the current converter through reducing the quantity of the sub-modules, and further can avoiding the land occupation and cost problems brought by a alternating current transformer.
Owner:TSINGHUA UNIV +1
Goaf waste rock filling coal mining method of flexible shield support in half-edge coal seam
ActiveCN103061764ARealize safe productionAvoid pollutionUnderground miningSurface miningEngineeringSteel rope
The invention discloses a goaf waste rock filling coal mining method of a flexible shield support in a half-edge coal seam, comprising the following steps: firstly arranging an alley way before coal mining, wherein the inclined alley way is arranged along a pitching surface according to an angle of 23-25 degrees, mining along the inclined direction from top to bottom and along the trending from east to west; secondly using a flexible shield support for coal mining with coal mining method, using the flexible shield support on a mining surface, tightening among the flexible shield supports by using back boards, using a steel rope to connect into an integral flexible shield support, and separating the goaf waste rock and coal mining space; and finally carrying out goaf waste rock filling. Through the method, safe production of half-edge coal seam can be realized, and simultaneously the handling problem of waste rock produced in underground coal mine can be solved.
Owner:BEIJING HAOHUA ENERGY RESOURCE
System and method for drying sludge through waste heat of gas turbine
ActiveCN103539333ALower fuel costsSolve the emission problemSludge treatment by de-watering/drying/thickeningSteam useFluidized bed dryingSludge
The invention provides a system and a method for drying sludge through the waste heat of a gas turbine. The gas turbine is connected with a generator; a flue gas outlet of the gas turbine is communicated with a waste heat boiler; a steam outlet of the waste heat boiler is communicated with a steam turbine; the steam turbine is connected with the generator; a steam extraction pipe of the steam turbine is communicated with an inlet of a heated surface pipe of an internal thermal type fluidized bed dryer; an air outlet of an air heater is communicated with an air inlet of the internal thermal type fluidized bed dryer; wet sludge enters the internal thermal type fluidized bed dryer through a wet sludge pipe, flows outside the heated surface pipe, is dried and then is discharged into a dry sludge pipe from a discharging hole. Steam is produced through the flue gas waste heat of the gas turbine to push a steam turbine generator set to generate power, and the waste heat of the steam turbine is taken as a heat source for drying the sludge, so that gradient energy utilization is realized, the heat efficiency is high, and a peculiar smell is not discharged; the fluidization air of the fluidized bed dryer is preheated by hot water, so that the energy utilization rate is further improved, and the environmental problems of groundwater pollution and the like caused by sludge burying and soil utilization are effectively solved.
Owner:凤阳县经济发展投资有限公司
Method for recovering bismuth from bismuth slag
ActiveCN102586627AAvoid safety hazardsReduce labor intensityProcess efficiency improvementElectrolysisSlag
The invention relates to a method for recovering bismuth from bismuth slag, which includes steps of: firstly, smelting silver-refining converter oxidizing slag in high-temperature restoring mode to obtain lead-bismuth alloy, performing silico-fluoric acid system lead-bismuth alloy electrolysis to obtain electric lead products and high-bismuth anode mud; secondly performing hydrochloric acid leaching on the high-bismuth anode mud, filtering to obtain bismuth-contained leaching liquid, wherein the leaching condition is that: liquid-solid ratio (weight ratio) is 3-6:1, process temperature is 40-70 DEG C, hydrochloric acid concentration is 150-200g / L, and reaction time is1.5-2.5h; and thirdly, replacing bismuth in the leaching liquid through reduced iron powder to obtain sponge bismuth and obtain refined bismuth with high purity in pyro-refining electrolysis. Sodium sulfide for sedimenting silver is added in the leaching process to obtain bismuth leaching liquid, silver can be prevented from immersing into the liquid as much as possible, when return washing liquid is used for leaching high-bismuth anode mud, a part of hydrochloric acid is refilled to maintain necessary potential of hydrogen (pH) value, concentration of Cl- is controlled to be 150-200g / L, and simultaneously bismuth ion hydrolysis can be avoided. Compared with the prior art, the method has no operations of water quenching, ball milling, hydrolysis, neutralization and the like of coarse bismuth alloy, has less procedures, is low in cost and free of pollution, simultaneously achieves double-metal electrolysis of the lead-bismuth alloy and does not influence the electric-lead main system.
Owner:蒙自矿冶有限责任公司
Method for inhibiting ionospheric clutter in portable high frequency groundwave radar
InactiveCN101581782AAvoid land occupationReduce adverse effectsWave based measurement systemsAdaptive filterRadar
The invention relates to the radar anti-interference technical field, in particular to a method for inhibiting ionospheric clutter in portable high frequency groundwave radar. In the invention, a plurality of sets of auxiliary crossed loops are arranged in the vertical direction of original crossed loop antennas of the portable high frequency groundwave radar, adaptive cancellation is carried out on the received signals of auxiliary crossed loop antennas, a main crossed loop and monopole antennas; the received signals of the main crossed loop and the monopole antenna are used as a basic input signal, the difference of the received signals between each auxiliary crossed loop antenna and the main crossed loop antenna are used as a reference signal to input three mutually independent self-adapting filters; an error signal is output from the self-adapting filters to be echoed signals of the main crossed loop and the monopole for inhibiting ionospheric clutter. The invention has the following advantages: an ideal ionospheric clutter reference signal can be obtained and the working efficiency and detection performance of radars can be greatly increased.
Owner:WUHAN UNIV
Rural urbanization residential domestic sewage and biomass garbage treatment system and method
InactiveCN103466886AAvoid pollutionAvoid land occupationWaste processingSolid waste disposalWater storageReclaimed water
The invention discloses a rural urbanization residential domestic sewage and biomass garbage treatment system and method. The system comprises a plurality of garbage crushers and a solid-liquid separator, wherein the plurality of garbage crushers are all connected with the solid-liquid separator through pipelines; a solid outlet of the solid-liquid separator is connected with an anaerobic reactor through a pipeline; a liquid outlet of the solid-liquid separator is connected with an aerobic reactor through a pipeline; the downstream side of the aerobic reactor is connected with a sludge-water separator through a pipeline; a sewage outlet of the sludge-water separator is sequentially connected with a sterilizer and a recycled water storage pool through pipelines and is also connected with the anaerobic reactor through a pipeline. By using the comprehensive treatment system and method disclosed by the invention, the biomass garbage and the sewage can be recycled after being treated, thus the no-waste treatment is realized; in addition, space occupation and environment pollution caused in biomass garbage stacking, transporting and sorting processes are avoided, thus residents are urged to classify garbage from the source.
Owner:烟台亿源环保科技有限公司
Process of directly forming and utilizing coal slime of coal cleaning plant
The invention discloses a process of directly forming and utilizing coal slime of a coal cleaning plant. The process comprises the following steps: directly transporting the coal slime from a filter-pressing workshop of the coal cleaning plant to a dosing machine; adding a certain amount of raw coal and an adhesive in percentage by mass; adopting a double-roller forming machine or a screw extruder to form after stirring and uniformly mixing. According to the process disclosed by the invention, the filter-pressing coal slime is not needed to be dried, and can be directly transported to a forming site, so that the coal slime is prevented from occupying land and being polluted. The forming process is simple, a briquette coal product is good in mechanical strength, so that the calorific value of the coal slime briquette coal can be adjusted by matching with the raw coal, and therefore, the use requirements of different users are satisfied. The process disclosed by the invention can be used for effectively solving the problems that the coal slime of the coal cleaning plant is in excess of demand, occupies land, and is polluted.
Owner:HENAN POLYTECHNIC UNIV
Overlying strata isolation grouting filling method for underground emission reduction of coal gangue
ActiveCN113605970ARealize no MasuiAvoid land occupationDirectional drillingMaterial fill-upMining engineeringSlurry
The invention relates to an overlying strata isolation grouting filling method for underground emission reduction of coal gangue, and belongs to the field of emission reduction of coal gangue in coal mining. The overlying strata isolation grouting filling method comprises the steps that according to information of a coal face, a grouting filling key layer is determined, and a plurality of branch holes are downwards constructed in a main hole of directional drilling from the directional drilling of an underground roadway to the interior of the grouting filling key layer; and a grouting and filling system is built underground, tunneling gangue and selected gangue of a mine are crushed and ground into filling slurry, cracks below a key layer are filled with the filling slurry through directional drilling, the key layer is effectively supported, and rock stratum movement and surface subsidence are controlled. According to the overlying strata isolation grouting filling method for underground emission reduction of the coal gangue, the coal gangue generated by the mine is directly prepared into the filling slurry underground and then is filled into the overlying strata mining-induced fractures, so that harmless treatment is realized.
Owner:CHINA UNIV OF MINING & TECH
Method for increasing mine tailing storage reserve based on designed storage capacity
InactiveCN102691304AIncrease storage capacityEasy to useEmbankmentsSoil preservationSlurryEngineering
The invention discloses a method for increasing mine tailing storage reserve based on the designed storage capacity, which belongs to the field of increasing the storage capacity of a mine tailing storehouse. The method comprises the following steps: firstly, laying a layer of working face on original mine tailing slurry in a mine tailing storehouse, arranging a vertical drainage channel in the working face, and setting a horizontal drainage channel on the working face so as to discharge water in the original mine tailing slurry discharges through the vertical drainage channel and the horizontal drainage channel due to the dead weight of solidified tailing soil or tedded tailing soil subsequently stacked on the mine tailing slurry to turn the slurry into a self-supporting soil body with sufficient strength by drainage solidification; and secondly solidifying or tedding tailing slurry subsequently injected to turn the slurry into self-supporting tailing soil with sufficient strength and then stacking the tailing soil on the working face in layers till the final stacking height is achieved.
Owner:BEIHANG UNIV
Flexible direct current transmission system for connecting alternating current networks with different voltage classes
InactiveCN102820672ALow costAvoid land occupationElectric power transfer ac networkLow voltageCurrent voltage
The invention provides a flexible direct current transmission system for connecting alternating current networks with different voltage classes, which belongs to the technical field of direct current transmission. When the rated line voltage value of a first alternating current system is more than the rated line voltage value of a second alternating current system, a first modularization multi-level current converter, a direct current transmission line and a second modularization multi-level current converter are sequentially connected between the first alternating current system and the second alternating current system in series. The two modularization multi-level current converters are subjected to the same direct current voltage, sub modules with the same rated voltage are also adopted, but the modularization multi-level current converter for being connected with the alternating current system with the lower voltage class can be directly connected with the alternating current system without a transformer, and moreover, a relatively smaller sub module cascade number can be adopted. After the transmission system provided by the invention is adopted, the cost of the modularization multi-level current converters is lowered through reducing the number of the sub modules; and additionally, the occupied area and cost problems which are brought by the alternating current transformer can also be solved.
Owner:TSINGHUA UNIV +1
Sheet material integrating filtering dust removal and catalytic denitration, and manufacturing method thereof
ActiveCN109289330AAvoid land occupationLess investmentGas treatmentDispersed particle filtrationEmulsionPolytetrafluoroethylene
The invention discloses a sheet material integrating filtering dust removal and catalytic denitration, and a manufacturing method thereof, wherein the sheet material comprises a base sheet capable offiltering flue gas, and a catalyst for denitration is attached to the base sheet. The manufacturing method comprises: 1, mixing polyphenylene sulfide (PPS) fiber and polytetrafluoroethylene (PTFE) fiber to prepare a base sheet; 2, preparing a viscous filtering material from part of the base sheet; 3, preparing nano-scale catalyst powder from the viscous filtering material, Mn, Ce, Zr, Ti, Fe, Cu and other elements; 4, preparing a manganese-based oxide emulsion from the prepared powder; and 5, immersing the base sheet into the manganese-based oxide emulsion to prepare the sheet material. According to the present invention, the sheet material is placed into the cloth bag dust removing device, such that the flue ash in the industrial flue gas can be filtered while the industrial flue gas is subjected to catalytic denitration treatment, the occupation problem is avoided, the investment is low, and the promotion application of the cloth bag dust removal is easily achieved.
Owner:BEIJING BUILDING MATERIALS ACADEMY OF SCI RES +1
Method for analyzing galloping characteristic of 10kV overhead insulated line under different wind load and icing conditions
PendingCN113591342AExplore featuresExplore the mechanismData processing applicationsDesign optimisation/simulationMarine engineeringIcing conditions
The invention relates to a method for analyzing galloping characteristics of a 10kV overhead insulated line under different wind load and icing conditions. The method comprises the following steps: determining different load and icing conditions of a line according to possible meteorological conditions during operation of the 10kV overhead insulated line; building an insulated line 3D model according to a proportion of 1:1; and carrying out reasonable analysis of galloping characteristics of the 10kV overhead insulated line under different wind load and icing conditions. According to the invention, static and dynamic cloud pictures of displacement of the 10kV overhead insulation line under different wind loads and different icing conditions are obtained, static and dynamic change rules of the displacement are obtained, a theoretical basis is laid for analysis of a galloping mechanism of the 10kV overhead insulation line, and the galloping characteristics and mechanism of the 10kV overhead insulation line are explored in principle. Therefore, precaution and early warning of line galloping are facilitated, and safe operation of power transmission lines is ensured.
Owner:ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +3
Flexible direct current transmission system for connecting alternating current networks with different voltage classes
InactiveCN102820672BLow costAvoid land occupationElectric power transfer ac networkLow voltageCurrent voltage
The invention provides a flexible direct current transmission system for connecting alternating current networks with different voltage classes, which belongs to the technical field of direct current transmission. When the rated line voltage value of a first alternating current system is more than the rated line voltage value of a second alternating current system, a first modularization multi-level current converter, a direct current transmission line and a second modularization multi-level current converter are sequentially connected between the first alternating current system and the second alternating current system in series. The two modularization multi-level current converters are subjected to the same direct current voltage, sub modules with the same rated voltage are also adopted, but the modularization multi-level current converter for being connected with the alternating current system with the lower voltage class can be directly connected with the alternating current system without a transformer, and moreover, a relatively smaller sub module cascade number can be adopted. After the transmission system provided by the invention is adopted, the cost of the modularization multi-level current converters is lowered through reducing the number of the sub modules; and additionally, the occupied area and cost problems which are brought by the alternating current transformer can also be solved.
Owner:TSINGHUA UNIV +1
Flue gas mercury oxidation catalyst and application thereof
ActiveCN106693980AImprove catalytic oxidation performanceSimple preparation processGas treatmentDispersed particle separationSlagFixed bed
The invention discloses a flue gas mercury oxidation catalyst and application thereof. The flue gas mercury oxidation catalyst is metal smelting water quenched slag based on copper smelting or nickel smelting. The flue gas mercury oxidation catalyst has a very strong capability of catalytically oxidating elemental mercury in coal-fired flue gas, has a very high elemental mercury oxidating rate even under the condition that the concentration of hydrogen chloride in the flue gas is relatively low, can be recycled and reused by virtue of own magnetism, and does not affect the subsequent utilization of fly ash after entering the fly ash. The flue gas mercury oxidation catalyst is in contact with the flue gas through particle spraying, a fluidized bed or a fixed bed or other ways, and can achieve high-efficiency oxidation of the elemental mercury in the flue gas. The flue gas mercury oxidation catalyst and the application thereof have the advantages of simplicity, feasibility, less investment, no secondary pollution and the like, and have a wide market application prospect.
Owner:CENT SOUTH UNIV
Water body in-situ repairing equipment and repairing method thereof
PendingCN107973492ARealize the purpose of making waste from wasteImprove the landscape effectWater contaminantsBiological treatment apparatusControl systemRestoration device
The invention discloses water body in-situ repairing equipment. The water body in-situ repairing equipment comprises a paving and planting system, a substrate improving system, a pipeline system, a water distribution system, a solar power supply system and a control system; a water taking pump is arranged at the middle position of a riverway; the bottom improving system is arranged above the watertaking pump; the pipeline system is paved above the substrate improving system; revetments are symmetrically arranged on the left side and the right side of the substrate improving system correspondingly; and the paving and planting system is paved on the surface of each revetment. The invention also discloses a repairing method of the water body in-situ repairing equipment. The riverway is completely utilized to dredge waste, such as bottom mud and urban garden waste, which is greatly generated by the city and is difficult to consume, and the aim of treating the waste by the waste is fulfilled; and by adoption of the water body in-situ repairing equipment and the repairing method thereof, the landscape effect of the riverway can be greatly improved, the rigid impression on people by thehard revetment is changed, and the equipment is particularly suitable for the riverway which does not have transformation space in an urban built-up area.
Owner:上海双骏环保科技有限公司
Downhole mining, screening, mixing and filling integrated gangue cement structure filling system and method
ActiveCN107246279BRealize the balance of mining and chargingHigh liftMaterial fill-upFilling materialsSlurry
The invention discloses an underground selection, screening and stirring integrated gangue cementation construction filling system and method. The system comprises an underground coal and gangue separating device, an underground gangue crushing and screening device, an underground filling material weighing and stirring device, an underground filling material slurry conveying device, an underground filling material slurry casting device and a PLC control device. The filling method comprises the steps that raw coal mined from a driving working face and a mining working face is transported to a raw coal bunker of a mining area, separated clean coal is transported to a clean coal bunker and is lifted by a main well, separated gangues are fed into a gangue crushing machine, and the gangues undergoing secondary smashing are fed into a gangue screening device; various raw filling materials are respectively fed into a burdening hopper, and filtered mine water is added to obtain filling material pulp through stirring after even and drying stirring; the filling material pulp is transported to a filling working face by a stirring transportation truck, then is cast into a filling formwork by a movable filling pump truck and is evenly vibrated by using a vibration device. By adopting the system and method, the mine transportation and lifting pressure is reduced, the working efficiency is improved, and the mining-filling balance of coal mine waste is achieved.
Owner:TAIYUAN UNIV OF TECH
Expressway pile wall type composite roadbed and construction method thereof
PendingCN111636266ANo deformation and settlementEasy to buildRoadwaysSoil preservationStructural engineeringGeotechnical engineering
The invention discloses an expressway pile wall type composite roadbed and a construction method thereof. The roadbed comprises a plurality of reinforcing layers, and a hard shell layer which is laidat the tops of the reinforcing layers; corresponding reinforcing soil layers in the plurality of reinforcing layers are adopted to form a plurality of spaced reinforcing pile wall structures, and a mixed soil pile wall structure is formed between every two adjacent reinforcing pile wall structures; the construction method comprises the steps that 1, determining basic parameters of the expressway pile wall type composite roadbed; 2, paving the reinforcing layers; 3, forming the plurality of reinforcing layers; and 4, paving the hard shell layer. A plurality of spaced reinforcing pile wall structures are formed by the corresponding reinforcing soil layers in the reinforcing layers which are laid layer by layer; the reinforcing pile wall structures and the mixed soil pile wall structures aremutually clamped, the structure is stable, vehicle wheel loads are transmitted into the reinforcing pile wall structures through the hard shell layer and then transmitted into a rock-soil body throughthe reinforcing pile wall structures, the land occupation problem caused by large-area sloping due to roadbed filling is avoided, the cost and the occupied area are greatly reduced, and the construction effect is good.
Owner:XIAN UNIV OF SCI & TECH
110 kV drill-span dual-purpose tension tower
PendingCN110259252AAvoid land occupationWide range of applicationsTowersTransmission lineDual purpose
The invention relates to the field of transmission line poles, in particular to a 110 kV drill-span dual-purpose tension tower, which comprises a tower leg and a tower body arranged on the tower leg.The 110 kV drill-span dual-purpose tension tower is characterized in that an upper layer road cross arm and a lower layer road cross arm are arranged on the tower body from top to bottom respectively, the upper layer road cross arm is composed of an upper layer ground wire cross arm, an upper layer upper-phase wire cross arm, and an upper layer lower-phase wire cross arm which are arranged from top to bottom, and the lower layer road crossarm is composed of a lower layer ground wire crossarm, a lower layer upper-phase wire cross arm, and a lower layer lower-phase wire crossarm which are arranged from top to bottom. The unique feature of the 110 kV drill-span dual-purpose tension tower is that when encountering a line which needs to be drilled or crossed, it is not necessary to newly build a pole tower, the upper layer road cross arm is used for achievingspanningand the lower layer road cross arm is used for achieving drilling by utilizing the vertical height of the pole towerunder the premise of ensuring a safe electrical clearance, occupation of land by the newly builtpole tower can be avoided, the110 kV drill-span dual-purpose tension tower can adapt to various working conditions, and the suitable application range is wide.
Owner:JIANGZHOU JINGLI ENG DESIGN CONSULTING CO LTD +1
Solar energy and wind power impulse turbine power generation all-in-one machine
PendingCN114109750AAvoid land occupationAvoid extra land occupationSolar heating energyFrom solar energyElectric energyElectric generator
The invention discloses a solar energy and wind power impulse turbine power generation all-in-one machine which comprises a supporting and guiding system, a solar water heating system and a wind power generation system. The supporting and guiding system is used for supporting the all-in-one machine and enabling an inlet of the current collector to face the incoming flow direction of wind all the time; the solar water heating system is used for enabling water flow to absorb solar heat and heating incoming flow air entering from the current collector; the wind power generation system boosts, heats and expands incoming flow air entering the heating current collector, then pushes the movable blades to rotate and converts the incoming flow air into electric energy of the power generator. Wind energy and solar energy of the top layer of the high-rise building in the city are utilized, the device can be arranged on the top layer of the high-rise building in the city, and extra land occupation is not needed.
Owner:XIAN THERMAL POWER RES INST CO LTD
An energy-saving and high-efficiency heat exchanger
ActiveCN110926251BAvoid wastingAvoid temperature riseEnergy industryIndirect heat exchangersElectric machineryProcess engineering
Owner:东营市富宏光热石油工程有限公司
A paste filling material for mine filling mining
ActiveCN111320430BMeet the requirements of filling and miningMeet the requirements of filling miningMining engineeringSlag
The invention discloses a paste filling material used for mine filling and mining, which comprises solid material and water, and the mass concentration of the solid material in the filling material is 75% to 80%; the solid material includes slag and fly ash , cement and additives, the filling material is composed of the following components by weight percentage: 42% to 57% slag, 12% to 33% fly ash, 2% to 8% cement, 0.1% to 0.8% additive and 20.1% ~25.6% water; wherein, the slag accounts for 54.3%~73.7% of the weight of the solid material. The paste filling material provided by the present invention can not only treat power plant waste on a large scale, avoid land occupation and environmental pollution problems, but also provide sufficient filling materials for coal mine filling and mining near the power plant, thereby providing favorable conditions for the environmental management of mining areas and power plants. technical measures.
Owner:TIANDI SCI & TECH CO LTD
Method for inhibiting ionospheric clutter in portable high frequency groundwave radar
InactiveCN101581782BAvoid land occupationReduce adverse effectsWave based measurement systemsAdaptive filterRadar
Owner:WUHAN UNIV
Consultancy table for business information consultancy
InactiveCN110720752ARealize classified storageEasy to sort and storeStoolsTablesStructural engineeringWorkbench
The invention discloses a consultancy table for business information consultancy. The consultancy table comprises a main body, a glass insertion groove, a top plate and a work table, wherein fixing discs are uniformly welded on the bottom end of the main body. Through the arrangement of a base plate, a seat plate, clamp posts, clamp grooves, a bottom plate and slide blocks, the self structure of the consultancy table is optimized; on one hand, through the arrangement of the base plate and the seat plate, a seat is provided for a worker for office working; the additional arrangement of a chairwith the matched size is not needed; the humanization degree is higher; through the effects of the slide blocks and slide grooves formed in the bottom plate, when the seat plate is unused, the base plate slides to be pushed to a position under the work table arranged inside the main body, so that the storage effect is achieved, and the space occupation is avoided; on the other hand, through the cooperative effect of the clamp posts and the clamp grooves, a user can conveniently dismount and maintain the base plate; and in addition, a sponge comfortable layer covers the outer side wall of the seat plate, and the comfort degree of the device in the use process is improved, so that the functionality of the device is enhanced.
Owner:江苏掌上云企业管理咨询服务有限公司
System and method for drying sludge through waste heat of gas turbine
ActiveCN103539333BLower fuel costsSolve the emission problemSludge treatment by de-watering/drying/thickeningSteam useFluidized bed dryingSludge
Owner:凤阳县经济发展投资有限公司
Spray pond cooling tower
InactiveCN1332168CSmall height differenceReduce operating energy consumptionTrickle coolersCooling towerEngineering
Owner:SHANGHAI JIAOTONG UNIV
Method for increasing mine tailing storage reserve based on designed storage capacity
InactiveCN102691304BIncrease storage capacityEasy to useEmbankmentsSoil preservationSlurryEngineering
The invention discloses a method for increasing mine tailing storage reserve based on the designed storage capacity, which belongs to the field of increasing the storage capacity of a mine tailing storehouse. The method comprises the following steps: firstly, laying a layer of working face on original mine tailing slurry in a mine tailing storehouse, arranging a vertical drainage channel in the working face, and setting a horizontal drainage channel on the working face so as to discharge water in the original mine tailing slurry discharges through the vertical drainage channel and the horizontal drainage channel due to the dead weight of solidified tailing soil or tedded tailing soil subsequently stacked on the mine tailing slurry to turn the slurry into a self-supporting soil body with sufficient strength by drainage solidification; and secondly solidifying or tedding tailing slurry subsequently injected to turn the slurry into self-supporting tailing soil with sufficient strength and then stacking the tailing soil on the working face in layers till the final stacking height is achieved.
Owner:BEIHANG UNIV
Premixed mortar thin plastering construction method
PendingCN114737780AImprove adhesionAdhesive area is fullMixing operation control apparatusPassive housesArchitectural engineeringStructural engineering
The invention discloses a ready-mixed mortar thin plastering construction method, which comprises the following key steps of: 1, treating a base layer; 2, paying off is controlled; 3, mortar pre-mixing: dry-mixed mortar is adopted, water is added in proportion on site, and the mixture is stirred by a machine for standby application; fourthly, joint treatment is conducted, specifically, when the mortar is stirred through the machine in the last step, the operation of hanging reinforcing nets or net cloth on the joint portions of different wall materials is conducted; 5, automatic spraying is carried out; uniformly spraying the stirred mortar on the wall surface by using automatic spraying equipment, and trowelling and compacting; in the implementation process of all the steps, a network camera is installed on a safety helmet of a worker, and the camera transmits a site construction picture to a project supervision server in real time. The device has the beneficial effects that the occupied area is small, flying dust is little, the construction environment is better, the construction quality is guaranteed, slurry cannot fall off after construction, and the cost is lower.
Owner:湖南教建集团有限公司
Preparation device for modified physical-property-reconstructed steel slag micro powder and application method
PendingCN112575130AAvoid land occupationPollution controlEnergy inputRecycling and recovery technologiesSlagCarbonization
The invention relates to a preparation device for modified physical-property-reconstructed steel slag micro powder and an application method. The preparation device comprises a filler chamber, a centrifugal external field carbonization furnace, a waste heat recovery system, a phosphorus powder recovery system and a grinding-magnetic separation multi-force-field coupling regulation and control device; the centrifugal external field carbonization furnace comprises a feed hopper, a discharge port and a baffle plate, wherein the feed hopper is connected to the filler chamber, and the discharge port is connected to the waste heat recovery system; and the waste heat recovery system is connected to the phosphorus powder recovery system and the grinding-magnetic separation multi-force-field coupling regulation and control device. According to the preparation device, a reaction interface is enlarged by utilizing a centrifugal external field, steel slag phase reconstruction and element migrationkinetics are accelerated, multi-component efficient separation is realized by adopting multi-force-field coupling regulation and control, the modified physical-property-reconstructed steel slag micropowder is used for being blown into a blast furnace, so that the modified physical-property-reconstructed steel slag micro powder serves as secondary energy to be utilized, waste is turned into wealth, in addition, conditions are created for eradicating land occupation of waste slag and curbing environmental pollution, and the preparation device has important significance in recycling the waste slag and saving energy.
Owner:UNIV OF SCI & TECH BEIJING
Fiberboard prepared through seaweed waste and preparing method of fiberboard
InactiveCN108000671AAvoid land occupationSave wood raw materialFlat articlesDomestic articlesScrapAgriculture
The invention discloses a fiberboard and a preparing method of the fiberboard. For the current situation that the seaweed resource in China is rich while the wood resource is in shortage, the high-density fiberboard is prepared with production waste of the seaweed industry and agriculture as raw materials, the seaweed waste is sufficiently utilized, land resource occupation caused by traditional burying treatment is avoided, meanwhile, the wood raw materials are saved, and the forest resource is protected. Specific limitation is made for the seaweed waste drying degree and particle granularity, seaweed slag particles and a bonding agent are bonded under the condition, and the load bearing capability can be effectively improved. Limitation is made for the proportion relation between a urea-formaldehyde resin adhesive and gelatin and the proportion relation between the total mass of the urea-formaldehyde resin adhesive and the gelatin and the mass of seaweed slag, and the fiberboard obtained under the proportion relation can reach the national high-density fiberboard performance standard and has ultralow formaldehyde emission.
Owner:DALIAN OCEAN UNIV
Cyanide-containing wastewater purification and cyanide recovering device and recovering method
InactiveCN110002565AEffective absorptionAvoid security issuesAlkali metal cyanidesWater contaminantsCyanideReclaimed water
The invention relates to a cyanide-containing wastewater purification and cyanide recovering device and a recovering method and belongs to the technical field of environmental protection. A cyanide-containing wastewater storage tank is connected with a heater connected with an acidification reactor; a sulfuric acid storage tank is connected with the acidification reactor; an acidizing fluid circulating pump is connected with the bottom and the upper part of the acidification reactor, the top of the acidification reactor is connected with a jet device, a centrifugal pump is connected with the bottom of an absorption tower and connected with the jet device, a pipeline connected with the jet device is inserted into the bottom of the absorption tower, and an absorption liquid circulating pumpis connected with the bottom and the upper part of the absorption tower; the acidification reactor and an efficient thickening device are connected through an acidizing fluid discharging pump; the bottom of the efficient thickening device is connected with a filtering device through a slurry pump; the upper part of the efficient thickening device and the filtering device are connected with a neutralization reactor. The device and the method have the advantages that the treatment effect is good, the treatment efficiency is high, system operation is stable, industrial application is convenient to realize, and treated wastewater can be returned to a production technological process to be used as reclaimed water.
Owner:CHANGCHUN GOLD RES INST
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