53 results about "Evaporation" patented technology

The invention relates to a cyclic production method of glyphosate, belonging to the technical field of pesticide production techniques. The production method comprises steps as follows: the raw material dimethyl phosphite is subjected to an alkyl ester method to obtain glyphosate and a glyphosate mother solution; the glyphosate mother solution is treated to obtain a secondary alkali mother solution; the secondary alkali mother solution is subjected to catalytic preoxidation, high-temperature high-pressure air electrocatalytic degradation and liquid membrane extraction to obtain a liquid membrane concentrated solution and a saliferous liquid membrane diluted solution; the liquid membrane concentrated solution is subjected to active carbon decoloration, concentration by evaporation, and high temperature polymerization to obtain sodium tripolyphosphate; the saliferous liquid membrane diluted solution is filtered by a nanofiltration membrane to obtain a membrane concentrated solution and a membrane diluted solution; the membrane concentrated solution returns to the catalytic preoxidation step to be recovered; the membrane diluted solution enters an MVR (mechanical vapor recompression) system to be subjected to concentration by evaporation, thereby obtaining sodium chloride crystal, distilled water and a mother solution; and the sodium chloride crystal, distilled water and mother solution are respectively utilized. The invention lowers the production cost, enhances the utilization ratio of the product, reduces the discharge of waste liquor in the glyphosate production procedure, is environment-friendly, and has obvious comprehensive economic benefit and social benefit.

The aqueous clay waste formed during a phosphate or other mineral recovery processes is flocculated in a well which is generally formed in a sedimentation lagoon, the supernatant is taken from the top of well and is recycled to the main flotation or other separation process (generally after running across sediment in the lagoon) and the thickened sediment which is formed in the well is pumped from the base of the well to one or more final lagoons where it is converted to a solid sediment by sedimentation and evaporation.

An oven comprises a housing defining a cooking cavity, a steam generator defining a chamber and having an evaporation element located in the chamber for generating steam that is introduced into the cooking cavity, and a water reservoir in fluid communication with the chamber and positioned relative to the chamber to supply water to the chamber to at least a minimum level at which the water completely immerses the evaporation element. Further, the steam generator can have a top defining an upper extent of the chamber, and the water reservoir can have a top positioned relative to the chamber such that the water reservoir top is vertically below the steam generator top.

This invention has a series of multiple parallel plates that form desalination chambers between them that have seawater or other saline water flowing down the inside of one plate of each chamber. Steam which is generated by solar heat or other heat source condenses on the outside of first chamber of the series on the plate, which has seawater running down it. This releases heat that evaporates the seawater. The vapor flows to the other wall (plate) of the desalination chamber and condenses, and this releases heat that flows through the plate to the next stage of parallel plates and evaporates seawater flowing down the other side of the plate. Each succeeding stage operates at a lower temperature than the previous stage. The final stage is cooled by the evaporation of seawater into the air. One embodiment of the invention has the parallel plates sloped at an angle to the horizontal so that the seawater flows down on the lower plate and evaporates with heat supplied from below. The vapor condenses on the ceiling of the chamber. Since each succeeding stage upward is at a lower temperature, the vapor pressure will be lower in succeeding stages. This pressure differential can be used to pump the seawater from one stage to the next higher stage.

The invention discloses an intelligent rainwater system based on runoff simulation and multi-sensor monitoring, and an operation method. The system comprises a runoff simulation and control host basedon a GIS, a meteorological forecast and runoff satellite monitoring server, a distributed small meteorological station, a vertical surface rain condition monitor, a movable rainfall radar, an infrared video monitor, an evaporation measuring instrument, a rainwater pipe network flow monitor, a water quality online monitor, an air quality monitor, a radar rainfall monitor, an infiltration area saturation monitor, an accumulation area water level monitor, a shallow-layer underground water level monitor, a surface runoff monitor, a waterproof unmanned aerial vehicle with a speed measuring buoy, an optical fiber temperature sensing system, an optical fiber pressure sensing system, a communication module, an intelligent controller, a rainwater utilization facility water supply point, a high-position rainwater hydroelectric generation module, a submersible conveying pump, a pressurization infiltration device and the like. According to various parameters, the rainfall flood disasters are subjected to scientific early warning and warning, and measures are adopted, so that the disaster risk of rainfall flood disasters to a building area or a building can be reduced.

The invention relates to a counter-flow flame combustion chamber which has a monocyclic cavity structure. The counter-flow flame combustion chamber is designed by adopting a concept of staged combustion, and combustion gas is supplied from a pre-combustion stage and a main combustion stage, wherein the pre-combustion stage adopts a diffusion combustion structural mode with stable whirlblast, and the main combustion stage adopts a combustion structural mode of combining premixing and pre-evaporation with counter-flow flame. The counter-flow flame combustion chamber mainly comprises a shunt diffuser, an external combustion chamber case shell, an internal combustion chamber case shell, a fuel nozzle, a head pre-combustion stage, a flame tube external wall main combustion stage, a flame tube internal wall main combustion stage, a flame tube external wall and a flame tube internal wall, wherein the head pre-combustion stage utilizes stable flame in a low-speed backflow area, which is generated by whirlblast air entering the combustion chamber from a pre-combustion stage whirlblast assembly; the main combustion stage comprises the flame tube internal wall main combustion stage and the flame tube external wall main combustion stage, and uniform oil-gas mixture jetted from the main combustion stage counters in a flame tube to form a counter jet flow which forms counter-flow flame under the ignition of pre-combustion flame. The invention has simple structure, and can effectively reduce disposal of pollutants besides ensuring the normal work condition of an aeroengine.

A water evaporation system and method for disposing of excess water left over from oil or gas drilling, fracturing, and production operations and from other wastewater producing operations. The system comprises a pumping system for pumping the wastewater from a pond through a filtration system and then to one or more nozzle arrays attached to cables suspended over the pond.

The present invention discloses an evaporative cooling clothing system for reducing body temperature of a wearer of the clothing system. The clothing system may include a clothing article for covering the wearer and a liquid reservoir for storing liquid. The clothing system may also include a hollow transport defining a cavity. The hollow transport is connected to the clothing article and connected to the liquid reservoir to allow the liquid to pass through the cavity from the liquid reservoir to the clothing article. The clothing article exposes the liquid to an environment surrounding the clothing article for evaporation.

The invention relates to the technical field of water treatment, and particularly relates to and discloses a treatment method for recycling high-hardness and high-salinity waste water. The treatment method comprises the following steps: (1) removing organic matters, softening and removing salt for the first time by using a primary treatment system; (2) removing organic matters, softening and removing salt for the second time by using a secondary treatment system; (3) performing evaporation and freezing crystallization treatment on concentrated liquid. According to the treatment method for recycling high-hardness and high-salinity waste water, a physical and chemical treatment and membrane integrated technology and an evaporation and freezing crystallization technology are combined, high-quality water can be recycled, the resin is softened to regenerate internal supply of an acid and alkali medicament, industrial salt is generated, resources are utilized effectively and comprehensively,long-term effective and stable operation of the system is guaranteed, and the advantages of good treatment effect, stable and reliable operation and capability of completely utilizing resources are achieved.

The present invention generally relates, to optical lithography and more particularly relates to the fabrication of transparent or semitransparent phase shifting masks used in the manufacture of semiconductor devices. In particular, the present invention utilizes an internal etch stop layer and either a deposited substantially transparent layer, deposited partially transparent layer or deposited opaque thereon in an otherwise conventional photomask. The photomask of the present invention is used to make semiconductor devices or integrated circuits. In a preferred embodiment of the present invention is directed to an aaPSM comprising: a patterned opaque layer with a first set of at least one light transmitting openings and a second set of at least one light transmitting openings; a deposited substantially transparent layer underlying the opaque layer wherein the deposited substantially transparent layer has corresponding light transmitting openings to each of the openings of the first set of at least one light transmitting openings, a substantially transparent etch stop layer underlying the deposited substantially transparent layer, and a substantially transparent substrate underlying the transparent etch stop layer. In a preferred embodiment, the internal substantially transparent etch stop layer of the present invention is comprised of MgF_x and even more particularly may be comprised of MgF₂ deposited under evaporation. Other materials that may be used for the substantially transparent etch stop layer of the present invention include but are not limited to Al₂O₃ and Al_xN_y.

An exhaust gas treatment device comprises a casing and a tail gas treatment module located inside the casing, wherein the casing comprises a mixing cavity, a splitting cavity and a distributing cavity; the exhaust gas treatment device further comprises a conical mixer located inside the mixing cavity and a mixing pipe located in the splitting cavity, and the conical mixer comprises a plurality of conical swirl plates and a plurality of openings corresponding to the conical swirl plates. Therefore, on one hand, urea can be laid on the pipe wall of the mixing cavity so as to increase the evaporation area and dwelling time of the urea and improve the mixing effect; on the other hand, exhaust gas can flow more smoothly, the local pressure loss can be reduced, and the back pressure can be reduced.

The objective of the invention is to provide an adhesion-prevention plate used for a vacuum film-forming device, a manufacturing method of the plate, a vacuum film-forming device adopting the adhesion-prevention plate and a vacuum film forming method, wherein the adhesion-prevention plate has good stripping preventing effects of a film forming material in a repeated evaporation circumstances. The adhesion-prevention plate is used for preventing adhesion of the film forming material to an unneeded position in the vacuum film-forming device, is made of aluminum, and comprises a surface of a concave-convex structure having concave parts with an average opening diameter being 0.01-9 [mu]m. A plurality of convex parts having an average height of 30-1000 [mu]m are arranged on the surface. The average density of the convex parts is higher than 10/10 mm<2>. The ratio of the bottom area of the convex parts is larger than 90% in a square area having a size of 10 mm.

The invention discloses a preparation method of a waterborne polyurethane emulsion and the waterborne polyurethane emulsion prepared by the preparation method. The preparation method comprises the following steps: (1) synthesizing a polyurethane prepolymer: mixing and dehydrating polypropylene oxide polyether glycol and polycarbonate diol, dropwise adding toluene diisocynate after dehydrating for heat-preserving reaction, and finally dropwise adding prepared mixed solution of dihydroxybutyric acid, 1, 4-butanediol and acetone for heat-preserving reaction to finally prepare the prepolymer; (2) adding aminoalkyl silicon oil, an inner crosslinking agent and hydroxy-propyl acrylate to modify; (3) neutralizing to salify: dropwise adding an acetone solution of a neutralizer triethylamine into the modified prepolymer prepared in the step (2) for reaction so as to prepare a polyurethane salified solution; and (4) dissolving disulfamate and a diamido chain extender in water, quickly adding to the polyurethane salified solution which is stirred at a high speed, quickly dispersing and extending chains, and heating the emulsion to remove the solvent through evaporation to obtain the waterborne polyurethane emulsion.

The invention discloses a preparation method for micron-size carbonyl iron and nickel alloy powder. The preparation method for the micron-size carbonyl iron and nickel alloy powder comprises the following steps that A1, Ni(co)4 is subjected to high-pressure synthesis; A2, Fe(co)5 is subjected to high-pressure synthesis; A3, Ni(co)4 is subjected to evaporation and vaporization, and a liquid Ni(co)4 compound prepared through reacting is guided into a first vaporizer at the constant speed, heated and vaporized; A4, Fe(co)5 is subjected to evaporation and vaporization, and a liquid Ni(co)5 compound prepared through reacting is guided into a second vaporizer at the constant speed, heated and vaporized; A5, premixing is conducted, specifically, vaporized Fe(co)5, Ni(co)4 vapor and ammonia gas together enter a pre-mixer through carrier tape, the ratio of iron to nickel is adjusted, and the mixed gas in the pre-mixer is guided into a thermal decomposition furnace to be subjected to thermal decomposition and alloying; and A6, gas-solid separation is conducted, and the iron-nickel alloy powder is obtained. According to the preparation method for the micron-size carbonyl iron and nickel alloy powder, operation is easy, quantity production is easy to achieve, and the cost is low; and the prepared iron-nickel alloy powder has the advantages of being uniform in iron and nickel distribution, good in pressing performance and sintering performance and the like and has excellent comprehensive mechanical performance, and the tool service life is prolonged by 10%-20%.

The invention discloses a photothermal evaporation surface, and a preparation method and an application thereof, and belongs to the technical field of solar photothermal utilization. The photothermalevaporation surface is formed by attaching porous microstructures, which are periodically arranged in an array, to the surface of a substrate, and every porous microstructure is a coffee ring-shaped structure formed by the accumulation of nanoparticles; and a micro-droplet generator is used to periodically arrange nanofluid droplets on the surface of the substrate in the array manner, and heatingis carried out to evaporate the droplets until dryness in order to form the coffee ring-shaped porous microstructures, periodically arranged in the array manner, on the surface of the substrate. The photothermal evaporation surface provided by the invention has a high photothermal conversion efficiency and can be repeatedly used, and the preparation method has the advantages of very small use amount of the nanofluid required for preparing the high-efficiency photothermal evaporation surface, low cost, and facilitation of industrial application.

The invention provides a system for continuously recycling a waste ternary lithium-ion battery and belongs to the technical field of recycling of lithium-ion batteries. The system comprises a pre-treatment unit, an acid leaching unit, a primary impurity removal unit, a co-precipitation unit, a secondary impurity removal unit and an ammonia recycling unit, wherein the pre-treatment unit comprises apulverizer, a pulse dust collection device, a positive and negative electrode powder cabin and a separation machine; the acid leaching unit comprises a leaching reaction kettle and a micro-filteringmachine I; the primary impurity removal unit comprises an impurity removal reaction kettle and a squeezing machine; the co-precipitation unit comprises a material preparation kettle, a co-precipitation reaction tank and a centrifugal machine; the secondary impurity removal unit comprises a secondary impurity removal reaction kettle and a micro-filtering machine II; the ammonia recycling unit comprises a heater, an evaporation crystallization device, a condenser and an ammonia liquid receiving tank. The invention further provides a technology for continuously recycling the waste ternary lithium-ion battery by utilizing the system. According to the system provided by the invention, a prepared nickel-cobalt-manganese ternary material precursor has high purity and large tap density; grains have a small grain diameter and narrow distribution and are uniformly mixed; a lithium sulfate solution can be directly used for producing lithium carbonate.

The invention relates to a method for preparing nesquehonite whiskers and nano flaky basic magnesium carbonate. The method is characterized in that sodium bicarbonate and magnesium chloride are used as raw materials, and nesquehonite whisker samples with high aspect ratio of 20-30 and narrow distribution range are obtained by controlling reaction conditions; filtrate obtained by filtering nesquehonite is subjected to further high-temperature reaction to obtain nano flaky basic magnesium carbonate with the content of 41-44%; after the reaction, evaporation, concentration and crystallization are performed on filtrate obtained by filtering the basic magnesium carbonate to allow the sodium chloride crystals to be separated, and the sodium chloride crystals are obtained through filtering. The method has the advantages the method is simple in preparation process, easy in process control, mild in condition and easy to achieve industrialization; the nesquehonite whiskers are high in purity, good in overall dispersity, high in aspect ratio and narrow in distribution range; total reaction yield is above 98.0%, and raw material utilization maximization is achieved; the side products sodium chloride can be recycled and refined.

The invention relates to an organic light emitting device. The organic light emitting device comprises a red-light layer, wherein the red-light layer comprises a subjective material and an objective material, the subjective material comprises a first subjective material and a second subjective material, the first subjective material and the second subjective material can form an exciplex compound,and the red-light layer is fabricated according to the following steps of mixing the first subjective material and the second subjective material to form a subjective evaporation source and evaporating the subjective evaporation source and an objective evaporation source to form the red-light layer. In the organic light emitting device, the exciplex compound is formed, the doping concentration ofthe objective material can be reduced by an FRET energy transfer effect, the stability of the device can be improved, the light emitting efficiency is improved, and the efficiency roll-off phenomenonis effectively prevented; and the subjective material is mixed in advance, so that the complexity and the cost of evaporation equipment are reduced, the difficulty of an evaporation process is reduced, the proportion of the first subjective material and the second subjective material is easy to control, and the problem of proportion imbalance is prevented. The invention also discloses a fabrication method of the organic light emitting device and a display device.

The invention discloses a siphon circulation, contraflow heat regeneration and vapor compression distillation device, which utilizes siphon circulation to replace a circulation pump so as to drive feed liquid, and condensation latent heat can be cyclically recovered, so that the investment and the power consumption of the circulation pump are saved; contraflow heat regeneration and climbing-film evaporation of the feed liquid are commonly driven by the siphon circulation and outer pressure of a pipeline, so that evaporation latent heat is provided for generating secondary steam; large-temperature rise and small-temperature difference contraflow heat regeneration is adopted, so that not only is shell-pass evaporation pressure increased to a large extent, but also tube-pass condensation pressure is reduced to a large extent, the pressure difference, the emission and the power consumption of a water vapor compressor are reduced to a large extent, and the power consumption per ton water is reduced to 5 to 8 kW*h/t to a large extent; the falling head of the siphon circulation, contraflow heat regeneration and vapor compression distillation device is fully utilized, so that a condensed water discharging pump and a feed liquid discharging pump are omitted.

The invention relates to a desulfurization wastewater zero discharging system and method based on waste heat reuse under a low-load working condition. The desulfurization wastewater zero discharging system comprises an economizer flue gas bypass subsystem and a desulfurization wastewater evaporation subsystem, wherein the economizer flue gas bypass subsystem comprises an economizer bypass flue, and can increase the flue gas temperature and the denitration efficiency under the low-load working condition; the desulfurization wastewater evaporation subsystem comprises a wastewater pipeline, a softening box, a concentration device, a wastewater preheater, a flue gas cooler, a heating medium water pump, a heating medium water pipeline, a wastewater pump and an atomization sprayer, and can perform concentration reduction, preheating and atomization on the wastewater to improve the evaporation efficiency of the wastewater. The invention further relates to a method for realizing zero discharging of the desulfurization wastewater under the low-load working condition by using the desulfurization wastewater zero discharging system based on the waste heat reuse. The system and the method havethe characteristics of a simple technological process, and can make effective use of waste heat of the flue gas to realize zero discharging of the wastewater under the low-load working condition of aunit and also improve the system denitration efficiency.

The invention discloses a tubular film evaporator for polyester production, comprising a shell which is provided with a feed inlet and a vacuum extract opening at the top. A feed outlet is arranged at the bottom of the shell. At least a group of evaporation units is arranged below the feed inlet inside the shell, and each group of evaporation units comprises a material receiving funnel and a heat exchange tube. The heat exchange tube is arranged perpendicularly and inserted in the circular hole at the bottom of the material receiving funnel. A circular gap is retained between the periphery of the heat exchange tube and the material receiving funnel. During polyester production, materials flows downwards from the circular gap retained between the periphery of the heat exchange tube and flows downwards in a film shape along the surface of the heat exchange tube and meanwhile, heat exchange occurs between the materials and the heat exchange tube, and the byproducts generated by the reaction overflow continuously and are extracted by a vacuum pump. Because the materials are distributed outside the heat exchange tube, the problem of blockage is solved. The tubular film evaporator has the advantages of good film forming effect, reliable use and high work efficiency and can be used in production of polymers of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylece terephthalate (PBT), PTT and the like.

The invention relates to a method for treating dinitro-diazophenol (DDNP) primary explosive production wastewater, belonging to the technical field of primary explosive sewage environmental-friendly treatment. The method is characterized by comprising the following steps: 1), carrying out classification: carrying out separation treatment on wastewater generated in the DDNP primary explosive production process according to the concentrations of poisonous compounds to obtain high-concentration wastewater and low-concentration wastewater, and respectively storing the high-concentration wastewater and the low-concentration wastewater; 2) carrying out high-concentration wastewater treatment: spraying the high-concentration wastewater on solid fuel, carrying out evaporation concentration, placing the solid fuel with less water after evaporation into a boiler, and incinerating the solid fuel with less water; 3) carrying out low-concentration wastewater treatment: introducing the low-concentration wastewater into a settling pond, settling the low-concentration wastewater, and utilizing the boiler to evaporate the supernatant liquor; and 4), periodically fishing out and cleaning the settling pond, blending solid precipitates in the settling pond into the solid fuel, and incinerating the solid precipitates and the solid fuel together. The method of the invention has the advantages that the wastewater treatment is safe and environmental-friendly, zero discharge of the DDNP primary explosive sewage is achieved, energy resources are saved, and the service life of production equipment is not influenced.

The invention discloses a heat pipe type concentrator-type photovoltaic/thermal integration-based combined heat and power generation apparatus. A high-power concentrator-type photovoltaic power generation system is realized through a Fresnel collecting lens; a heat pipe technology is introduced to the high-power concentrator-type photovoltaic power generation system; a cell chip is mounted on an evaporation section of a heat pipe, so that the heating problem of the concentrator-type cell chip is solved; a cooling water apparatus of the chip is designed in a series-wound and shunt-wound manner; a temperature sensor is mounted on a cooling water pipeline; the controller controls the rotary speed of a feed pump according to a signal of the temperature sensor and a temperature setting value so as to control the flowing speed of cooling water; and in other words, the temperature of the cooling water can be controlled. The high-power concentrator-type photovoltaic/thermal integration-based combined heat and power generation can be realized; and in addition, the system is extremely high in photoelectric efficiency and photo-thermal efficiency.

The invention discloses an invisible humidifier of a floor heating system, and belongs to the technical field of humidifiers. The technical problem to be solved is to provide the invisible humidifier of the floor heating system, which utilizes the floor-heating temperature, does not waste power, does not occupy space, and is very good in effect. According to the technical scheme adopted by the invention, the invisible humidifier of the floor heating system comprises a water inlet, a cold water storage tank, an S-shaped heating tube, a warm water storage tank and a water absorption evaporation module, wherein the cold water storage tank and the warm water storage tank are separately arranged at the two sides of the S-shaped heating tube, and communicate with the S-shaped heating tube; the cold water storage tank communicates with the water inlet through a pipeline; the side surface of the warm water storage tank communicates with the bottom of the water absorption evaporation module; and the water inlet is close to the water absorption evaporation module. The invisible humidifier of the floor heating system is suitable for a house with a floor heating system, and has the advantages of being environmentally-friendly, energy-saving, free of space occupation, and good in humidifying effect.

The invention discloses a double-trench close planting water and fertilizer integrated Chinese yam cultivation method. A double-trench planting mode is adopted, the width of each unit is 1.2m, and twoplanting trenches are formed in each unit, so that the length of the planting trench per mu reaches about 1100m. Compared with the traditional single trench planting that the planting trench length only reaches 740m, the double-trench close planting method has the advantages that the planting trench length of about 360m is increased, a planting row spacing of 0.2m is less than the traditional planting row spacing of about 0.25m, and the planting density is increased. Then, the yield per plant of Chinese yam is about 80% of the yield per plant during single trench planting, the yield per mu isabout 130% of the yield per mu during single trench planting, water is directly supplied to the Chinese yam root through a dropper, the water usage amount can be reduced, and the evaporation capacityof surface water can be reduced, so that the water-saving planting aim is achieved.