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1964results about How to "Accelerate evaporation" patented technology

Dyed polyester FDY fiber and preparation method thereof

The invention relates to polyester FDY fiber and a preparation method thereof. The preparation method comprises: metering a modified polyester melt, extruding, cooling, oiling, drawing, carrying out heat setting, and winding to prepare the polyester FDY fiber, wherein the unchanged longitudinal height is maintained during the cooling, the cross section area of the slow cooling chamber is increasedwhile the plate surface temperature of the spinning plate is maintained by using the thermal insulation method. According to the present invention, the material of the fiber is the modified polyester, the molecular chain of the modified polyester comprises a terephthalic acid chain segment, an ethylene glycol chain segment and a diol chain segment having the branched chain, the structure formulaof the diol chain segment having the branched chain is defined in the specification, R1 and R2 are respectively and independently selected from straight chain alkylidene with a carbon atom number of 1-3, R3 is selected from alkyl with a carbon atom number of 1-5, and R4 is selected from alkyl with a carbon atom number of 2-5; the chromatic aberration [delta]E of the prepared fiber is less than 0.200; and the preparation process is simple and reasonable, and the prepared fiber has excellent performance.
Owner:JIANGSU HENGLI CHEM FIBER

Method of extracting essential oil from biomass wastes and a device thereof

A method of extracting essential oil from biomass wastes puts biomass wastes, such as wood residuals, wood chips or other plants, in an air-tight oxygen-free reaction vessel to be heated up indirectly, for conducting a thermal pyrolysis cracking reaction (i.e. dry distillation); and guides volatile gas which is distilled when the processed wastes disintegrate, into a condenser to be condensed as liquid which is then separated into water and oil through an oil-water separation tank. Whereas, non-liquefied gas is discharged outside after deodorizing, and residuals in the reaction vessel are processed with high-temperature dry distillation once to become activated carbons. In processing, temperature and pressure in the reaction vessel are controlled in multiple phases, along with using a suction pump of a changeable speed and a changeable flow rate to suck out air in high speed in phases, to keep internal pressure of the reaction vessel at a low pressure condition, thereby shortening a processing time and acquiring high quality essential oil and activated carbons as by-products.The present invention also includes a system device to implement this method. In the oil-water separation tank of this device, an ultrasonic generator is provided to re-disintegrate tars, which improves quality of the oil products.
Owner:LIN WEI CHIH

Technology for reducing waste incineration fly ash via water logging pretreatment

The invention relates to a technology for reducing waste incineration fly ash via water logging pretreatment, and the technology is particularly suitable for the treatment of waste incineration fly ash with salt content higher than 20%. A water logging dechlorination manner is used for treating waste incineration fly ash; by prolonging the logging time, the water consumption is greatly reduced, a subsequent wastewater treatment process is simplified at the same time and a soluble salt resource is recycled; before fly ash enters into a furnace, most of heavy metals and chlorine salts are removed, a matrix of fly ash is purified, and by virtue of existing incineration equipment of waste incineration power plants, pollutants such as dioxin are thoroughly degraded, so that the overall normal running of a waste incineration line is ensured and the harmless and reduction treatment of waste incineration fly ash is realized. The technology has a characteristic of correct in-situ treatment, and is simple in process and low in investment and operation costs; by gathering most of heavy metals and salts in heavy metal plaster and gathering little of the two in secondary fly ash, the reduction of waste incineration fly ash is realized, and then a favorable foundation is laid for the subsequent further treatment or resource utilization.
Owner:TIANJIN YIMING ENVIRONMENTAL TECH CO LTD

Planting method of famous and precious Chinese herb medicine dendrobium officinale

InactiveCN103004421AConducive to accumulation of emissionsAccelerate evaporationHorticultureFertilizer mixturesPlant rootsEvaporation
The invention relates to a planting method of famous and precious Chinese herb medicine dendrobium officinale, and the method is characterized in that a cultivation bed of a plantation trough with an undulated bottom is established under a certain facility environment, multiple mixed organic matrixes mainly comprising pine bark are paved, a nondestructive planting technology for stretching tissue culture seedling roots is adopted, and scientific and reasonable dendrobium officinale planting method adopting comprehensive cultivation measures such as a photo and temperature control technology, a fertilizer control technology, an insect and harmful organism nuisanceless control technology and a sustainable harvesting technology is adopted in different growth seasons and for different plants according to the biological characteristics of the dendrobium officinale; and due to the adoption of the method, the ventilation, moisture evaporation and moistening functions of a plant root environment can be enhanced, and harmful substances influencing the growth of the plant can be eliminated in time, so that the plant can grow strong, active components are highly concentrated, the resistance is enhanced, a purpose of high yield and excellent quality can be realized, the high yield and stable yield of the dendrobium officinale can be guaranteed, the product quality is excellent, sustainability for harvesting the dendrobium officinale for multiple years can be realized, and super high yield of fresh products about 600kg per Mu every year can be realized after the method is put into production.
Owner:MAOMING HUISHENGYUAN BIOLOGICAL SCI & TECH

Method and device for extracting lithium from lapidolite by chloridizing roasting method

ActiveCN101775505ALow melting pointReduce or inhibit precipitationRubidiumPotassium
The invention discloses a method and a device for extracting lithium, which is used for preparing lithium carbonate, from a lapidolite ore by a chloridizing roasting method. The method comprises the following steps of: firstly, mixing the lapidolite ore, calcium chloride and sodium hydroxide with a compound bonding agent for pellet fabrication; secondly, performing chloridizing roasting in a square-frame shaped track type roasting furnace; thirdly, leaching out soot dust by using solution containing sodium carbonate and potassium carbonate to ensure that potassium, sodium, rubidium and cesium enter the solution and convert the lithium into lithium carbonate; fourthly, filtering the mixture to obtain a lithium carbonate solid, and circularly using the filtrated mother liquor to leach out the soot dust; fifthly, when an alkali metal salt is close to be saturated, indirectly heating the filtrated mother liquor by using the residual heat of the gas in the roasting furnace to evaporate part of water; sixthly, passing CO2 into the filtrated mother liquor to perform carbonation; and seventhly, performing cooling crystallization to separate out a mixed salt of the sodium carbonate and the potassium carbonate, returning part of the mixed salt which is used as an auxiliary material mixed and roasted with lapidolite for cyclic utilization, using another part of the mixed salt as a carbonate reagent needed in dissolution, and using the rest part of the mixed salt as byproducts of the sodium carbonate and the potassium carbonate. The method has the advantages of high lithium recovery rate, good material comprehensive utilization, large equipment productivity, high production efficiency, small water consumption in the process and less wastewater discharge.
Owner:CENT SOUTH UNIV

Composting method for biologically dehydrating livestock manure

The invention provides a composting method for biologically dehydrating livestock manure, which comprises the following steps: under the condition of adding biological fermentation strains, horizontally laying the livestock manure, adding fly maggots for fermenting, and then, adding the livestock manure and biological fermentation strains in batches, wherein the fermentation period is 3-7 days, and the fermentation condition is 22-42 DEG C. The invention also provides a composting method for biologically dehydrating the livestock manure, which comprises the following steps: under the condition of adding the biological fermentation strains, horizontally laying the livestock manure, and then, adding the fly maggots for fermenting, wherein the fermentation period is 7-12 days, and the fermentation condition is 10-22 DEG C. The invention reduces the initial water content of livestock manure composting by microbiological synergistic action, fully performs the action of composting fermentation strains, does not need to add auxiliary materials for regulating the water content of the livestock manure, reduces the treatment cost of the livestock manure, and improves the composting quality. Meanwhile, the culture of fly maggots provides a large amount of high-quality feed protein and raw materials for further processing to better recycle organic wastes, thereby realizing the purposes of protecting environment and increasing efficiency and yield agriculturally.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

System and method for promoting growth of multiple root systems in a hydroponic environment

This invention provides a container and associated growing process that promotes the growth of at least two different, specialized types of roots and that provides the optimal conditions for these two types of roots. In particular, the container defines an upper section that promotes growth of a fine intricate web of roots that is surrounded by an organic, non-organic or mixed organic and non-organic nutrient-rich medium. This upper section is separated by a permeable medium divider that allows predetermined quantities of water to pass into the upper section (to maintain desired moisture in the nutrient medium (soil), while a lower/bottom section contains a reservoir of hydroponic water that may be relatively free of any nutrients (e.g. “non-nutrient” water). Extending from the upper root ball are a series of water-drinking straw-like roots that transpire water directly from the non-nutrient reservoir and that are continually exposed to massive amounts of atmospheric oxygen. A transport (capillary) device allows water to wick from the reservoir into the upper section to maintain a desired level of moisture in the upper roots, and carrying with it additional dissolved oxygen via evaporation and transpiration. The bottom section can be filled with an acceptable porous, water-storing medium such as gravel or rock wool. The permeable medium divider can include one or more capillary devices that allow transfer of water from the lower reservoir into the upper section. In certain embodiments, the divider can include a series of formations that allow it to sit in an elevated manner on a water-containing structure (such as a sponge-like medium).
Owner:WRIGHT PAUL L

On-duty flame stabilizer

The invention discloses an on-duty flame stabilizer, which comprises an atomization slot, an oil injection rod, an evaporation tube, a stabilizer side wall and air injection holes, wherein the atomization slot is a slot-shaped structural part with certain wall thickness and is arranged in the evaporation tube, a slot mouth points downstream, and the oil injection rod is at downstream position; the oil injection rod is provided with a plurality of oil injection holes and is arranged in the evaporation tube; the evaporation tube is a slot-shaped structural part with the air injection holes at both sides and certain wall thickness, and the outer side of the evaporation tube is provided with a stabilizer side wall; the stabilizer side wall is a two-side plat plate type structural part with certain wall thickness, and two flat plates have a certain flare angle downstream; a gap is left between the atomization slot and the evaporation tube, and the gap is flush at the head part of the stabilizer; a gap is left between the evaporation tube and the stabilizer side wall, and the gap is flush at the head part of the stabilizer; the air injection holes are positioned at both sides of the evaporation tube close to the bottom; and the on-duty flame stabilizer can be used in an aircraft engine and a stamping engine to improve the ignition performance, the flame stability and the combustion efficiency.
Owner:PEKING UNIV

Pneumatic multi-nozzle complex tissue and organ manufacturing system with multiple degrees of freedom

The invention relates to a pneumatic multi-nozzle complex tissue and organ manufacturing system with multiple degrees of freedom, belonging to the field of organ manufacturing. The system comprises an X-direction movement mechanism, a Y-direction movement mechanism, a Q-direction rotation mechanism, a lifting platform, a rotary forming table, a shell, a high-pressure air source, a multi-nozzle forming unit, a spray solution pressure tank, a temperature control device, a sterilization device and a control unit. Under the control of the control unit, the multi-nozzle unit moves according to the set path and can spray according to the set sequence, so that the forming size is wide in cover range; the relative angle formed between a center shaft of a spray valve and the surface of the rotary forming table can be changed, so that a complex curved surface can be conveniently manufactured. The system enables multiple cells and support materials to be arranged at the corresponding positions for once according to the computer instruction, and various subsequent processing processes can be completed at the same time; the formed three-dimensional structure is directly connected with the corresponding circulating system in vivo, and various physiological functions of the complex tissues and organs can be rapidly realized.
Owner:TSINGHUA UNIV
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