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166results about How to "Improve the environment" patented technology

Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer

A wavelength division multiplexer/demultiplexer is provided that integrates axial gradient refractive index elements with a diffraction grating to provide efficient coupling from a plurality of input optical sources (each delivering a single wavelength to the device) which are multiplexed to a single polychromatic beam for output to a single output optical source. The device comprises: (a) means for accepting an optical input from at least one optical source, the means including a planar surface; (b) a first coupler element comprising (1) a first axial gradient refractive index collimating lens having a planar entrance surface onto which the optical input is incident and (2) a first homogeneous index boot lens affixed to the first collimating lens and having a planar exit surface from which optical light exits; (c) a diffraction grating formed on the planar exit surface which combines a plurality of angularly separated diffracted wavelengths from the optical light; (d) a reflecting element for reflecting the plurality of diffracted wavelengths; (e) a second coupler element comprising (1) a second homogeneous index boot lens having a planar entrance surface onto which said plurality of diffracted wavelengths is incident and (2) a second axial gradient refractive index collimating lens affixed to the second homogeneous index boot lens; and (f) means for outputting at least one multiplexed, polychromatic output beam to an optical receiver, the means including a planar back surface. The device may be operated in either the forward or the reverse direction.
Owner:AUXORA

Method and system for establishing power grid visualized perceptual model

The invention relates to a method and a system for establishing a power grid visualized perceptual model. The method comprises the following steps: firstly, performing situation awareness demand analysis according to the target of power grid security risk assessment, then sequentially performing data preprocessing and data integration according to the result of the situation awareness demand analysis, establishing a knowledge correlation analysis engine for data of environment factors and production factors, extracting the knowledge data to obtain statistically synthetic KPI data in a space dimension and a time dimension, adopting a visualization technology to visually show diagrams of the environment data, the statistically synthetic KPI data and the knowledge data, and combining the situation awareness with the visualized views to realize situation visualization, so as to establish the power grid visualized perceptual model. Through the model, the information of the various factors in the environment can be immediately acquired and acknowledged, the future state of the environment can be predicted, and the running state of the power grid can be shown in real time, so that users can understand and use the power grid knowledge more directly and quickly.
Owner:YUNNAN ELECTRIC POWER DISPATCH CONTROL CENT +1

Method for producing soil conditioner raw material by using kitchen garbage and solid agriculture and forestry wastes

The invention provides a method for producing a soil conditioner raw material by using kitchen garbage and solid agriculture and forestry wastes. The method comprises the following steps of (1) performing raw material treatment: respectively treating the kitchen garbage and the solid agriculture and forestry wastes; (2) performing subcritical hydropyrolysi-ozone oxidization digestion: feeding smashed raw materials into a reaction kettle, and feeding ozone for digesting the raw materials in a united manner under a high-temperature and high-pressure subcritical environment; (3) after the raw materials are digested, cooling and decompressing the reaction kettle, and performing solid-liquid phase separation on products; and (4) drying and smashing the separated solid phase products to obtain the soil conditioner raw material for later use, and feeding liquid phase products into a water storage basin for recycling. According to the method, an effect of improving the environment in both the urban and countries is achieved, energy is fully saved, repeated use of resources is realized, and harm caused by improper treatment on the garbage to human is avoided; the ecological benefit of a kitchen garbage recycling product is enhanced, the cost for treating the kitchen garbage is lowered, and the appeal of harmless, reducing and recycling garbage treatment of the government is responded.
Owner:HUNAN SHULIN ENVIRONMENTAL TECH CO LTD

Melting and iron-smelting device of heat storage type electric arc furnace

ActiveCN101643807APrevent oxidationImprove the environmentReducing substancesProduct gas
The invention provides a melting and iron-smelting device of a heat storage type electric arc furnace, which comprises a furnace body of the electric arc furnace and matched equipment, at least one pair of combustion chambers and at least one pair of heat storage devices, the device is further provided with at least one pair of gasification boxes which are arranged between the furnace body of theelectric arc furnace and the combustion chambers, and at least one layer of coal grid is arranged in each gasification box. Each gasification box is provided with a bypass, and valves are arranged onan outlet, an inlet and the bypass of each gasification box. The device aims at preventing reduced substances at the gas inlet from being oxidized after that circulating gas or air enters the electricarc surface; oxygen-containing gas preheated by the heat storage devices, in particular to the air, firstly enters the combustion chambers to be mixed with fuel sprayed into the combustion chambers for burning before entering the electric arc furnace, and high-temperature flue gas is exhausted from the combustion chambers and then enters the gasification boxes to carry out gasification reaction with coal in the coal grids for generating CO, thereby forming a reducing atmosphere, optimizing the environment of melting, reducing and iron-smelting of the electric arc furnace, being conductive tothe reducing process of the reduced substances, improving the quality of reduced iron products and reducing environmental pollution.
Owner:SHIJIAZHUANG XINHUA IND FURNACE CO LTD

Kitchen fresh air system

PendingCN108240692AImprove the environmentHigh carbon oxide contentDomestic stoves or rangesLighting and heating apparatusReturn channelFresh air
A kitchen fresh air system comprises an extractor hood and a ceiling. A fresh air outlet is formed in a machine shell and communicates with an outdoor port through a first fresh air channel and a second fresh air channel. A fresh air draught fan and a first one-way valve are arranged in the second fresh air channel. An air inlet is formed in the ceiling. An air return channel for communication ofthe air inlet and the second fresh air channel is arranged above the ceiling. A second one-way valve is arranged in the air return channel. A fresh air purification device is arranged in the second fresh air channel. An air outlet of the air return channel communicates with the part, between an air inlet of the fresh air purification device and an outdoor fresh air suction-in port, of the second fresh air channel. The first one-way valve is arranged on the part, between the air outlet of the air return channel and the outdoor fresh air suction-in port, of the second fresh air channel. According to the kitchen fresh air system, clean air can be provided into a kitchen during cooking and after cooking through control over the first one-way valve and the second one-way valve, the fresh air system enters an inner circulation mode when the outdoor environment is seriously polluted, and accordingly the kitchen air is purified.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Waste gas treatment process and device adopting reverse flow counter-impact turbulence washing tower

The invention provides a waste gas treatment process and device adopting a reverse flow counter-impact turbulence washing tower. The process includes following steps: enabling waste gas to pass a heat exchanger and enter a reverse spray washing pipe of the reverse flow washing tower to contact with a first-stage reverse spray, second-stage reverse spray or third-stage reverse spray absorbing liquid circulating system which sprays flow upwards to obtain mixed absorbing liquid, and forming a gas-liquid turbulence foam washing area; enabling the mixed absorbing liquid to enter the bottom of the reverse flow washing tower along the flow and enter a holed pipe to form a gas-liquid or liquid-liquid bubble washing area, enabling the waste gas after going through the bubble washing area to pass a defoamer and then an outlet of the heat exchanger, and discharging the waste gas after being purified. The waste gas treatment process and device has the advantages that gas-liquid counter-impact is utilized to increase contact specific surface area of the waste gas and the absorbing liquid to form the turbulence foam washing area, and the three reverse spray absorbing liquid circulating systems are designed creatively; natural gravity of the reverse spray absorbing liquid is utilized, and pipe wall hole diameter of 1-20mm is designed at the bottom of the reverse spray washing pipe creatively to form the bubble washing area.
Owner:浙江海牛环境科技股份有限公司

Method for culturing litopenaeus vannamei in saline-alkali soil

The invention discloses a method for culturing litopenaeus vannamei in saline-alkali soil. The method sequentially comprises the steps of preparation of a pond, clearing of the pond, nutrification of water, water introduction, fertilization, covering with a greenhouse, releasing of shrimp larvae, feeding and shrimp harvesting. The method is characterized in that the pond is prepared following the steps of firstly, site selection, wherein before site selection, testing is conducted, and measurements of the salinity higher than 0.05%, the calcium ion concentration higher than 80 mg/L and the magnesium ion concentration higher than 150 mg/L are required; secondly, building of the pond, wherein the rectangular pond with the area of 100-500 mu is selected, the length-width ratio is (1-2):(2-3), the depth of the pond is 1.5-1.8 meters, and the maximum water-storage depth is 1.2-1.5 meters. The pond bottom gradient meets the requirement that water in the pond can flow by itself to be drained, a water discharging system and a water inlet system of a farm are separately arranged, a small pond is built in a small reservoir at a water inlet of the rectangular pond according to the scale of (30-50):1, and the bottom of the small pond is 30 centimeters or above higher than the rectangular pond; an aerator is arranged. According to the method suitable for culturing the litopenaeus vannamei in the saline-alkali soil, the method can be suitable for culturing the litopenaeus vannamei in the saline-alkali soil, and the saline-alkali soil can be developed and utilized.
Owner:渤海水产股份有限公司 +2

Method for producing heat storage brick by magnesite tailing

InactiveCN102603337AAvoid bulk accumulationImprove the environmentSolid waste disposalBrickTailings
The invention discloses a method for producing a heat storage brick by the magnesite tailing, which improves the heat storage capability and the thermal shock stability of the heat storage brick. The method for producing the heat storage brick by the magnesite tailing comprises the following steps of: mixing 55-65wt% of magnesite tailing and 35-45wt% of iron powdered ore; carrying out ball milling to mixed materials in a ball mill; adding 5wt% of water into the ball-milling material in a mixing mill for mixing to obtain aggregate; breaking and screening the prepared aggregate; adding 5wt% of sulphurous acid paper pulp waste liquor as binder; then adding 1-1.5wt% of steel fiber to evenly mix; and mixing by the mixing mill; and pressing the mixed material into the heat storage brick under the pressure of 1000-1200KN. The method disclosed by the invention is characterized in that the magnesite tailing which is the waste after the magnesite tailing is adopted for mineral separation serves as raw material, the magnesite resource is effectively utilized, the phenomenon that a great quantity of magnesite tailing is accumulated is avoided, and the environment is improved. Meanwhile, the mafic heat storage material produced by the magnesite tailing has strong heat storage capability, the compression strength can reach 50-60MP, and the bulk density reaches 2.5-4g/cm<3>.
Owner:UNIV OF SCI & TECH LIAONING

Architectural tile prepared by using Anshan-type iron ore tailings and preparation method thereof

The invention relates to an architectural tile prepared by using Anshan-type iron ore tailings and a preparation method thereof. The architectural tile comprises iron ore tailings powder, blast furnace slag, borax, anhydrous BaCO3, magnesite, potassium feldspar, soda ash, TiO3, Sb2O3 and sulfur; and the preparation method comprises the following steps of: putting materials into a ball mill and carrying out mixed milling for a certain time to reach required granularity, adding water and blending into uniform thin paste, removing air bubbles on a vibration machine, removing upper water, pouring into a ceramic mold, vibrating on the vibration machine, then removing upper water, then putting the mold and the materials into a drying furnace together to be dried, putting into a sintering furnace to be roasted, discharging and demolding, cutting and shaping. The invention effectively utilizes resources, improves the environment and solves stacking problem of tailings. Compared with the prior art, the invention has high utilization ratio of iron tailings, low porosity, no waste gas, waste residues, waste water, noise and radioactive contamination in the preparation process, simple production process and easy operation. The cut and polished product has bright and clean surface and can substitute decorative materials, such as marble granite, and the like.
Owner:JILIN UNIV

Ecological soil retaining structure

The invention provides an ecological soil retaining structure. The ecological soil retaining structure mainly comprises soil retaining plates, ecological bags, small balconies, supporting piers, inverted filter layers, drain holes, plants, drip irrigation pipes, flow guide grooves and vertical drain holes. The ecological soil retaining structure can replace an existing soil retaining plate technology, and is arranged between piles of a sheet-pile retaining wall or between stand columns of an anchor rod retaining wall or is combined with other retaining structure styles to be used. The ecological soil retaining structure is mainly characterized in that the ecological bags and the soil retaining plates are alternatively arranged from bottom to top and combined together to form an ecologicalface wall, the soil retaining plates are main pressure-bearing components which bear the soil pressure, and the ecological bags are main carriers of green landscapes. The ecological soil retaining structure enables a conventional concrete face wall to be changed into the ecological face wall capable of achieving landscape greening, and the largest greening area of the face wall can be 70% or above. The ecological soil retaining structure comprises a drip irrigation system and a drainage system, and is combined with the technology characterized in that the space behind the plates is refilled with planting soil, the excellent environment is provided for plant growth, and the landscape greening effect is quite excellent.
Owner:丁兆锋

Inner circulation film formation method of aerobic and salt-resisting denitrifying bacteria and denitrifying reactor

The invention provides an inner circulation type denitrifying reactor. The inner circulation type denitrifying reactor comprises a reactor body, wherein the reactor body is internally provided with flow guide plates for longitudinally separating the reactor body into three spaces, namely a water inlet region, a biological packing region and a water outlet region; the biological packing region is internally provided with biological packing; an aeration head is arranged at the lower part of the reactor body; a denitrifying sludge reflowing pipeline, communicated to the top of the reactor body, is further connected and arranged at the bottom of the reactor body. The invention further discloses an inner circulation film formation method of aerobic and salt-resisting denitrifying bacteria. By adopting the inner circulation type denitrifying reactor provided by the invention, rapid film formation of the aerobic and salt-resisting denitrifying bacteria is realized. With the adoption of the method, the problems that the content of nitrate and nitrite of rear-end output water of a biological denitrifying system is high and the content of total nitrogen does not reach the standard and the like can be completely solved; and meanwhile, the method is simple and easy to operate and has a relatively short implementation period and engineering-oriented implementation can be directly carried out.
Owner:BLUESTAR LEHIGH ENG INST CO LTD
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