171results about How to "Desaturation" patented technology

A dental multi-color machinable zirconia ceramic and its preparation method. The zirconia ceramic has the characteristics of translucence and color gradient, and contains more than five porcelain layers with the same hue and different saturation. The lightness gradually decreases from the top of the ceramic to the bottom layer, and the saturation The density gradually increases, and the color transitions naturally with a sense of hierarchy; the pre-sintered porous ceramic body of the zirconia ceramic is easy to cut and shape, and can be used to make personalized and beautiful dental zirconia all-ceramic restorations through the CAD / CAM system, which is conducive to preserving the abutment teeth. Improve the repair success rate. The preparation method of the dental complex color machinable zirconia ceramic is simple, effective and easy to popularize.

A Red Green Blue-to-Red Green Blue White (RGB-to-RGBW) color decomposition method and system. The RGB-to-RGBW color decomposition method includes: determining an output value of white based on inputted RGB values and a saturation; and outputting the output value when an input color is a pure color.

The invention provides a slag washing water steam recycling and white fog removing system and a recycling method. The slag washing water steam recycling and white fog removing system comprises a slagwashing water steam chimney close to a blast furnace, at least one cooling spraying device and a hot air furnace assembly; the lower portion of the slag washing water steam chimney can contain waste slag discharged out of the blast furnace and carries out slag washing operation, the cooling spraying devices are arranged in the middle of the slag washing water steam chimney and spray atomized waterto the lower portion of the slag washing water steam chimney, the hot air furnace assembly is communicated with the blast furnace and the upper portion of the slag washing water steam chimney, the hot air furnace assembly can convey generated hot air into the blast furnace, and conveys the treated waste gas to the upper portion of the slag washing water steam chimney, the mist spraying cooling direct heat exchange manner is adopted, the cooling efficiency is high, in combination with the humidity and condensation effect of atomized water, a small amount of water is sprayed, and therefore a large amount of water steam can be recycled, water steam which is not condensed is subject to waste gas temperature rise dilution, the water steam saturability is reduced, and white smoke is prevented from being generated.

The invention discloses a linear rotation permanent magnet actuator adopting a staggered pole structure. the linear rotation permanent magnet actuator comprises a housing (1), a stator, a rotor and a rotating shaft (9), wherein the stator is provided with three groups of stator units in the axial direction, the three groups of stator units are connected by virtue of non-magnetic-conducting connectors (10); the stator is provided with first magnetic poles (6) and second magnetic poles (7) which are alternatively arranged in the axial direction, the first magnetic poles (6) comprise first permanent magnetic poles (61) and first iron poles (62) which are alternatively arranged in the circumferential direction, the second magnetic poles (7) comprise second permanent magnetic poles (71) and second iron poles (72) which are alternatively arranged in the circumferential direction, and the first permanent magnetic poles (61) and the second permanent magnetic poles (71) are opposite in magnetism. According to the linear rotation permanent magnet actuator, the consumption of a permanent magnet is greatly reduced, the size of the actuator is reduced, and the power density is increased.

The invention relates to a method for selectively removing calcium ions from a concentrated water byproduct of a sea water desalination process and other high-calcium-magnesium-content concentrated brines, which comprises the following steps: regulating the pH value of the concentrated water to 7.0-8.5, and then heating to a certain temperature; introducing the concentrated water into a heat-insulating apparatus capable of realizing sealed stirring, adding a sodium sulfite or sodium carbonate solution having a certain concentration while stirring, reacting for 1-40 minutes while sufficiently stirring, standing for 5-10 minutes, and then filtering to remove calcium sulfite or calcium carbonate precipitate; and adding hydrochloric acid into the filtrate to regulate the pH value back to 6. According to the invention, the problems of low calcium removal rate, high magnesium loss rate, long stirring time and the like during the concentrated water treatment based on the traditional normal-temperature sodium carbonate precipitation method are overcome, the operation is convenient, the investment is low, and the operation cost is low; and the concentrated water liquid subjected to decalcification treatment can be further deeply concentrated through a membrane method or hot method, thereby improving the fresh water recovery rate and realizing the reutilization and zero discharge of the resources. The method provided by the invention is suitable for selectively removing calcium ions from sea water, sea water or brackish water subjected to other treatment processes such as reverse osmosis or multiple-effect evaporation and concentration, underground salt brines and concentrated water of industrial waste water subjected to reverse osmosis treatment.

The invention relates to a later-period air injection exploitation method for super heavy oil reservoir using steam assisted gravity drainage (SAGD) exploitation. The method comprises the following steps of: newly drilling a straight well as an air injection well at a position where a steam cavity of the super heavy oil reservoir develops poorly; perforating on the upper part of the air injection well to complement a perforation section with the length of 2-3m; continuously injecting air by the air injection well at the speed of 20,000-80,000m<3> / day and firing to exploit; and stopping injecting the air when the volume percentage of the oxygen in the produced gas reaches 3 percent or the volume ratio of the volume of the injected air and the volume of the produced crude oil reaches over 3,000m<3> / m<3>. With the adoption of the method, the later-period heat loss is reduced by using the SAGD technology, and the stable production of the whole system is maintained by utilizing heat energy released by reacting substances in the oil reservoir.

The invention discloses a method for treating liquefiable sandy soil foundations by using microbial bubbles, mainly targeting at liquefiable sandy soil layers, using liquid injection nozzles, hollow drill pipes, connectors, catheters, compressors, bacterial liquid storage tanks, etc. The device injects pre-enriched and cultured denitrifying bacteria liquid into the soil to replace pore water, and the bacteria perform denitrification in the pores to produce inert gases nitrogen and carbon dioxide. The nitrogen produced by biological metabolism in the pores can effectively reduce the soil saturation, increase the shear strength of the soil, and improve the soil's ability to resist liquefaction. Nitrogen dioxide produced by biological metabolism can induce the precipitation of calcium ions in the bacterial fluid to form calcite. Calcite has strong cementing properties, which can effectively improve the cohesion between soil particles, increase the shear strength, and can fill the pores of the soil, increase the compactness of the soil, and further improve its ability to resist liquefaction.

A solid-state imaging device includes a plurality of two-dimensionally arranged photo diodes and a plurality of microlenses having substantially hemispherical shapes which cover the respective photo diodes. The microlens has a multilayer structure including at least a transparent resin upper layer which forms at least a portion of the substantially hemispherical shape, and a colored lower layer provided on a portion of the transparent resin upper layer which is located above the photo diode, with an interface between the colored lower layer and the transparent resin upper layer having a shape conforming to a surface of the photo diode.

The present invention relates to a flux-gate type non-contact current measuring device for measuring a current to be measured by detecting an electromagnetic field around a conducting wire into which the current to be measured flows, wherein the present invention can detect a direct current component through a change of an oscillating signal by applying the oscillating signal for magnetizing two cores in mutually opposite polarities, wherein: an LC oscillation circuit is formed by using the inductance of a coil wound on one core, and the direct current component is detected by applying an LC-oscillating signal to a coil wound on the other core; an alternating current component is detected by using another core; compensated currents corresponding to the detected direct current and alternating current components are converged under a condition of offsetting a magnetic flux by the current to be measured, so that the current to be measured can be measured by measuring the compensated currents in the converged state thereof; and the present invention can normally measure a current by automatically demagnetizing an LC oscillating core even in a circumstance that the LC oscillating core is saturated by the current to be measured.

Disclosed is a process for producing an SiC single crystal by a solution method. The process can prevent defects attributable to seed touch in which seed crystals are brought into contact with a solution to grow SiC single crystals with reduced defect density. The process comprises bringing SiC seed crystals into contact with a melt containing Si within a graphite crucible to grow SiC single crystals on the SiC seed crystals and is characterized in that the SiC seed crystals are brought into contact with the melt in such a state that C is unsaturated.

The invention discloses a liquefiable foundation device for micro-nano bubble processing and an operation method. In terms of a liquefiable sand layer in a foundation, a mixture of micro-nano bubbles and water is injected through a micro-nano gas-liquid mixture generator, a compressor, an air guide pipe, a hollow drilling pipe, a gas sprayer and the like, the micro-nano bubbles can stay in soil for a long time, the saturation is reduced, shearing strength of the soil is enhanced, and accordingly liquefaction resistance of the liquefiable sand layer is remarkably improved. When the liquefiable sand layer bears a vibration load, gas left in the soil can serve as a buffering agent and effectively buffer the tendency that pore water pressure rises, and accordingly the liquefaction resistance of the foundation is improved.

A mist collecting apparatus which sucks and collects mist that is generated due to ejection of a liquid includes: an exhaust duct from which a suction unit for sucking outside air extends downward; and a liquid absorbing member which is mounted to the suction unit so that a lower end portion thereof is disposed on an outside of the exhaust duct and an upper end portion thereof is disposed in the exhaust duct, wherein a suction pressure of the liquid absorbing member on a liquid by capillary force is equal to or greater than a difference between hydraulic heads of an upper and a lower end of the liquid absorbing member.

A fine-grain material centrifugal filtering and dewatering device comprises a frame, a housing, a motor, a drum and a speed regulator. A spindle of the motor penetrates the bottom of the housing to be connected with the drum, the spindle penetrates the housing to be provided with a sealing component, the upper portion of the housing is provided with an upper housing cover, the lower portion of the housing is provided with a liquid discharge outlet, the side wall of the drum is provided with a plurality of filtrate holes, and filter medium is attached to the inner wall of the drum. The upper portion of the drum is provided with an upper drum cover, the housing is provided with a feed pipe penetrating the upper housing cover and the upper drum cover to enter the drum, a mechanical sealing component is arranged at an inlet of the upper drum cover, the feed pipe is respectively provided with a suspension liquid feed system and an air feed system through pipelines, and the pipelines are provided with flow control valves. By coordinating pressurized filtering and centrifugal filtering, filtering speed can be accelerated by centrifugal force, dewatering speed is accelerated by compressed air, therefore dewatering process of a centrifugal filter is enhanced, solid-liquid separation efficiency is improved, residual water in centrifugal filter cakes is reduced and centrifugal dewatering effect of fine-grain materials is improved.

The invention discloses a natural gas hydrate parallel horizontal well miscible-phase displacement mining method and belongs to the technical field of natural gas hydrate mining. The method includes the steps that in combination with geological data, a parallel horizontal well network is arranged for a target reservoir; matched well-completion operation is performed; after well completion is finished, depressurizing mining is performed through horizontal wells till no economic benefit exists; after depressurizing mining is finished, fracturing operation is performed on the horizontal wells; then a ground supply system and an underground injection system are arranged at the injection wells; and carbon dioxide and chemical agents are separately injected into the natural gas hydrate reservoirthrough the injection wells, and natural gas and produced water are collected from the producing wells. The natural gas hydrate parallel horizontal well miscible-phase displacement mining method is suitable for the reservoir which is low in permeability, poor in communication property, rich in storage and low in natural gas hydrate saturability; the horizontal wells distributed in parallel are arranged for the target reservoir so that the storage amount of the available natural gas hydrate can be increased; and mining is performed by separately injecting the carbon dioxide and the chemical agents through the injection wells, the gas mining efficiency can be improved, the ultimate recovery factor is improved, and the economic benefits are improved.

The invention provides a side-by-side horizontal well exploitation method of natural gas hydrates and belongs to the technical field of natural gas hydrate exploitation. The method comprises the steps that combined with geological data, a side-by-side horizontal well net is arranged in a target reservoir, and matched well-completion practices are conducted, and after well completion, depressurizing exploitation is conducted through the horizontal wells until no economic benefits; fracturing operation is conducted on horizontal wells after depressurizing exploitation, then a ground supply system and an insulated tubing heating system are arranged in a water injection well, hot water is injected into the natural gas hydrate reservoir through the water injection well, and nature gas and produced water are collected through a production well. The method is suitable for the reservoir which is poor in connectedness, thick in storage and low in natural gas hydrate saturation, the reserves of the available natural gas hydrates can be improved by arranging the horizontal wells which are distributed side by side in the target reservoir, and the insulated tubing heating system is utilized to achieve hot water injection for exploitation so that the heating efficiency can be improved, the heat loss can be reduced, the gas production efficiency can be improved, and the economic benefit can be improved.