90results about "Evaporation" patented technology

A novel process for desulfurizing spodumene smelting slag using EDTA is presented. This process uses the final solid waste obtained from the water leaching lithium extraction process after sulfuric acid roasting of spodumene as raw material. A prepared EDTA solution is added to the smelting slag containing approximately 10% calcium sulfate, allowing the raw material to fully react with the EDTA solution, thus achieving desulfurization of the smelting slag. Finally, the filtrate is subjected to rotary evaporation precipitation, and the EDTA solution is recovered and recycled. This process has high resource utilization, not only achieving 99.9% desulfurization of the smelting slag in a short time but also enabling the recycling of the EDTA solution. The desulfurization method provided by this process is highly efficient, simple, and transforms waste into valuable resources, increasing economic benefits. Furthermore, it effectively addresses the environmental compatibility issues of solid waste in the existing lithium mining industry, which is of great significance for the sustainable and high-quality development of the lithium battery industry.

This disclosure provides systems and methods for purifying precursor compounds. One method includes one or more of the following steps: mixing a crude product solution with a first solvent, wherein the crude product solution comprises a precursor compound and at least one impurity; wherein the boiling point of the first solvent is higher than the boiling point of the crude product solution; feeding at least the mixture of the crude product solution and the first solvent into an evaporator; and collecting a distillate comprising the precursor compound from the evaporator, wherein the purity of the precursor compound in the distillate is greater than 95%, as determined by [further steps]. 1 Determined by H NMR. Other methods and systems are presented in this paper.

This utility model discloses a purification device for natural methyl cinnamate, including a purification tank. A heating jacket is installed on the outer side of the bottom of the purification tank. A rotating shaft is rotatably installed in the middle of the bottom of the purification tank via a mechanical seal. Natural methyl cinnamate and other materials are transported into the purification tank. The solution is heated by using the heating jacket. During this process, the installation sleeve and stirring blades are controlled to rotate. The stirring blades can stir the solution inside the purification tank. At the same time, the installation sleeve is driven to rise intermittently, and the stirring blades on the installation sleeve will rise and fall intermittently, which can push the solution inside the purification tank to flow up and down, improving the stirring quality of the solution inside the purification tank. Meanwhile, the rotation of the rotating shaft will drive the pusher ring to rotate. The pusher ring can push the material adhering to the inner wall of the purification tank, preventing the material from sticking to the inner wall of the purification tank under prolonged heating, thus improving the purification quality of natural methyl cinnamate.

The utility model provides a kind of for industrial lubricating oil's depth purification device, it is related to lubricating oil purification technical field to solve the problem that the precision difference of filter core is larger in the simple water removal filtering function of traditional oil filter, including oil storage tank;Oil storage tank is connected with the import of feed pump by control valve A;Piping heater is connected with the feed inlet of negative pressure evaporator;The discharge outlet of negative pressure evaporator bottom is connected with the import of dehydration circulating pump by control valve B;Dehydration circulating pump is connected with the feed inlet of mesoporous adsorption filter by control valve D.The whole process adopts vacuum dehydration, mesoporous adsorption filtration, membrane hole filtration purification process, not only can effectively remove water in waste lubricating oil, and can effectively adsorb and remove oxidation condensate, paint film, oil sludge and other organic impurities in lubricating oil, ensure that the cleanliness index of filtered lubricating oil meets the cleanliness requirement of high-end equipment for lubricating oil.

This invention discloses a method and system for the continuous production of long-chain polyamides. The method includes: (1) feeding a diacid and a diamine into a prepolymerization reactor for a prepolymerization reaction, wherein the prepolymerization reactor is a horizontal screw reactor; (2) evaporating and dehydrating the product of the prepolymerization reaction; and (3) the output from step (2) entering a final polymerization reactor for continuous final polycondensation. The long-chain polyamides prepared by this method and system have a narrow molecular weight distribution, low viscosity, and stable performance. In particular, compared with batch methods, the process has a high degree of automation and high production efficiency.

An oil-removal plant for removing oil from metal chips of non-ferrous materials comprises a container of such chips and a container for the recovered oil; the chips container cooperates with a magnetic field generator member, one of such container and said generator member being rotary so as to enable the generation of a rotary magnetic field which impacts and passes through the chips heating them, the oil evaporating from the chips and being subsequently condensed and recovered in then oil container. A method for removing oil from chips is also described and claimed herein.

The utility model relates to primary amine production technical field, concretely is primary amine rectification purification system. Primary amine rectification purification system, including storage tank, storage tank is connected with rectifying column through heat exchanger, and the bottom of rectifying column is connected with membrane evaporator through pipeline, and the inside of rectifying column is equipped with primary condenser, and rectifying column is connected with gas -liquid separation tank through secondary condenser. The system is through the additional membrane evaporator, and the liquid phase material of rectifying column bottom discharge is handled again. The unique structure design of membrane evaporator makes it can distribute liquid material into film shape evenly, greatly increases evaporation area, strengthens mass transfer process, further separates the primary amine and impurity remaining in liquid phase, significantly improves the purity of product, satisfies the strict requirement of high -end application field to primary amine high purity.

The present application relates to air conditioning equipment technical field, particularly to a kind of solution regeneration device and solution air conditioner for solution air conditioner.The solution regeneration device includes: support structure, set to the side of condenser in outdoor unit, the inside of the support structure has cavity;Spray part, set to the top of the cavity;Liquid collection tank, set to the bottom of the cavity;Celdek packing, set between the spray part and the liquid collection tank, for expanding the contact surface of solution and air;Wherein, it further includes ultrasonic excitation module, for converting the power frequency of electric current into high frequency to carry out ultrasonic oscillation.In the present application, solution regeneration device can vibrate solution to produce cavitation effect by setting ultrasonic excitation module, also can ultrasonic disturbance to heat and mass transfer of spraying solution process, reduce regeneration temperature, promote water vapor in solution efficient evaporation, improve solution regeneration efficiency, greatly reduce the energy consumption required in solution regeneration process, so that solution air conditioner is more energy saving and environmental protection.

This invention discloses an air-suspension low-temperature heat pump evaporation device and its usage method, including an evaporator. The lower part of the evaporator forms a heat exchange cycle with a hot-side heat exchanger, and the top of the evaporator is connected to a cold-side heat exchanger, which is connected to a distilled water system. The outlet of the hot-side heat exchanger is connected to the inlet of the cold-side heat exchanger via a flash tank, and the outlet of the cold-side heat exchanger is connected to the inlet of the hot-side heat exchanger via an air-suspension compressor to form a cycle. The outlet of the flash tank is also connected to the motors of the frequency converter and the air-suspension compressor. In actual use, the connection of the hot-side heat exchanger, the cold-side heat exchanger, the flash tank, and the air-suspension compressor allows the steam heat to be recovered and utilized, effectively improving the heat utilization rate and helping to reduce operating energy consumption. Furthermore, the flash tank ensures a stable liquid intake for the cooling needs of the motor and the frequency converter, while also ensuring the overall heat exchange capacity of the system and avoiding the impact of sudden load drops on the compressor, thereby greatly improving and ensuring the operating energy efficiency of the compressor and the whole system.

This invention discloses a green and energy-saving formaldehyde production system and method. Methanol is fed into a methanol buffer tank, then sequentially preheated in a dehydrogenation feed preheater, a dehydrogenation evaporator, and a first preheater to 210-260°C. After being heated, it enters the dehydrogenation reactor for a dehydrogenation reaction in the presence of a catalyst. The reaction liquid sequentially enters the first preheater and the dehydrogenation feed preheater to recover heat, and then sequentially enters a condenser and a dehydrogenation separator for gas-liquid separation. The liquid phase sequentially enters a preheater, a dryer, a light tower, and an aldehyde tower for separation to obtain formaldehyde product. The remaining liquid enters an alcohol tower to recover formaldehyde. The gas phase sequentially enters a dehydrogenation condenser, a compressor, and a pressure swing adsorption unit to obtain hydrogen. This invention produces hydrogen as a byproduct, which is used as an energy output, making it a green and energy-saving production process. Furthermore, the addition of water vapor reduces the occurrence of side reactions such as dimethyl ether and carbon buildup.

The application discloses a layered extraction recovery device for evaluating the permeability of a regenerating agent for a regeneration technology, which comprises a box, a lifting control module, a rotation control module and a heating control module; a box door is arranged on the front face of the box and a digital display control module is embedded in the box door; the digital display control module comprises a power button, a start button, an emergency stop / reset button and a temperature setting button; an electricity connection port is arranged on the back face of the box; the lifting control module is arranged on the lower surface of the top of the box and is connected with the power button, the start button and the emergency stop / reset button respectively; the rotation control module is arranged on the upper surface of the bottom of the box and is connected with the power button, the start button and the emergency stop / reset button respectively; the heating control module is arranged in the box and is connected with the temperature setting button; and temperature measuring holes and flow guiding holes are arranged on the side face of the box. The application simplifies the operation process, accurately controls the same time of each dissolution and improves the safety of solvent evaporation recovery.

Provided is a method capable of industrially advantageously producing a Lamiaceae plant extract containing rosmarinic acid at a high concentration. A method for producing a hot-water extract of a Lamiaceae plant including the following steps (A) and (B): (A) subjecting a Lamiaceae plant to a blanching treatment at 85°C or higher, then drying; and (B) extracting a dried product obtained in the step (A) with hot water.

The utility model provides a kind of working substance purification system, it is related to high temperature heat pipe technical field.Working substance purification system includes first separating device, second separating device and environment generating device, first separating device includes first container, filter device in first container and first heating device, first container contains the working substance to be purified, first heating device is used to heat the working substance to be purified, filter device is configured to centrifugal filtration to the working substance to be purified.Second separating device includes second container and second heating device, second container is connected with the export of first container, and second heating device is used to heat the working substance, which is contained by second container, after centrifugal filtration by first separating device, to separate the impurities with lower evaporation temperature in the working substance after centrifugal filtration.Environment generating device includes protective gas supply source, and protective gas supply source is connected with first separating device and second separating device, and provides protective gas for first separating device and second separating device.

This invention relates to the field of simulated resin recycling technology, and discloses a waste recycling device and method for highly realistic resin crafts, including a frame; a melting component for melting the simulated resin crafts; an evaporation component for separating harmful gases from the melted mixed solution; and a condensation component for controlling the condensation and collection of the separated harmful gases. This waste recycling device and method for highly realistic resin crafts, by setting up a roller and flat plate structure in the evaporation component, forms a uniform liquid film in the solution during heating and rotation, significantly increasing the evaporation area, promoting the efficient evaporation and separation of harmful solvents such as dichloromethane, reducing residual impurities, and improving the purity of the recovered monomers. The equipment integrates functional modules such as melting, evaporation, condensation, and recycling, and, in conjunction with a servo motor driving a reciprocating screw and a circulation frame, realizes automatic feeding, rotary evaporation, and cooling water circulation pump operation, reducing manual intervention and improving processing efficiency.

The application relates to a sulfur foam acid production pretreatment system and a pretreatment method, and belongs to the field of industrial acid production. The system comprises, in sequence, a demulsification stirring tank, a hot melt separation device, an evaporation crystallization device, a drying device and a sulfur particle granulator. The hot melt separation device comprises a hot melt shell, a heat supply unit and a stirring unit. A feeding port is arranged at the top of the hot melt shell. The demulsification stirring tank is communicated with the feeding port. An overflow port and a discharge port are sequentially arranged on the side wall of the hot melt shell from top to bottom. Sealing doors and first valves are arranged at the overflow port and the discharge port respectively. The evaporation crystallization device is communicated with the discharge port. The heat supply unit is arranged on the hot melt shell. The stirring unit is arranged in the hot melt shell. The stirring unit is used for stirring sulfur foam in the hot melt shell. The application has the technical effects that the sulfur foam treatment system is simple and convenient to operate.

The present invention relates to an evaporator for solar-driven desalination, a method for manufacturing the same, and a hybrid desalination system including the same. More specifically, the evaporator for solar-driven desalination of the present invention includes commercially available and cost-effective carbon nanotubes, cellulose nanofibers, and agarose, and by mixing them at an optimized ratio to prepare an aerogel and applying it as an evaporator for solar-driven desalination, it can have excellent surface hydrophilicity, low density, and very high salt removal efficiency by generating high capillary force with a plurality of vertical microchannels. Furthermore, it is energy-efficient because it has low thermal conductivity, making it efficient for thermal concentration, and can convert sustainable solar energy into thermal energy to recover fresh water without energy consumption. Furthermore, the hybrid desalination system of the present invention can improve fresh water recovery rate and energy generation by forming an SWRO-SD-PRO system in which a seawater desalination unit (SWRO) for fresh water recovery, a solar-driven desalination unit (SD) for additional fresh water recovery, and a pressure retarded osmosis unit (PRO) for energy generation are sequentially combined, and has the advantages of being eco-friendly and economically superior.

This utility model relates to the technical field of red yeast rice extract processing equipment, and discloses a high-efficiency concentration and separation device for red yeast rice extract, including a processing mechanism with a support mechanism at the bottom; the processing mechanism includes a base plate, a mixing tank fixedly connected to the top left side of the base plate, a rotating rod rotatably connected inside the mixing tank, a spiral stirring blade fixedly connected to the surface of the rotating rod, a motor fixedly connected to the top of the rotating rod, a heater installed inside the mixing tank, and a feed pipe fixedly connected to the top of the mixing tank. This high-efficiency concentration and separation device for red yeast rice extract, driven by the motor, enables the spiral stirring blades to form a three-dimensional circulating stirring effect within the mixing tank. This stirring method can fully disperse the raw materials, allowing the extract to have comprehensive and multi-layered contact and reaction with the raw materials, greatly increasing the chances of dissolution and precipitation of the effective components, thereby significantly improving the extraction rate of the effective components.

The present application relates to the field of polyolefin catalyst spherical carrier preparation and its raw material recycling process, and in particular to a separation method of oil-containing hexane.A separation method of oil-containing hexane is disclosed, which comprises: performing first thin film evaporation separation on the oil-containing hexane in a first thin film evaporator to obtain a first top distillate and a first bottom distillate; performing second thin film evaporation separation on the material containing the first bottom distillate in a second thin film evaporator to obtain a second top distillate and a second bottom distillate; and performing separation on the second bottom distillate to obtain white oil and silicone oil; wherein the recovered hexane comprises the first top distillate.The method has high separation precision and separation efficiency, and realizes efficient recycling and utilization of the three components of the oil-containing hexane.

This invention provides a method for the comprehensive utilization of lithium slag from lepidolite smelting, relating to the field of solid waste treatment technology. The method includes the following steps: desalination: mixing the lepidolite smelting lithium slag with an aqueous solution, performing multi-stage washing and pressure filtration at 40-60°C to obtain filter cake and filtrate A; impurity removal; evaporation and salt extraction: treating the high-salt purified liquid using vacuum pervaporation and thermal pervaporation methods respectively to precipitate potassium sulfate and sodium sulfate, obtaining industrial-grade sodium sulfate and potassium sulfate products respectively. This invention enables lithium slag to be desalinated, impurity-removed, and weight-reduced into general solid waste, while obtaining higher purity industrial-grade sodium sulfate and potassium sulfate products, thus improving enterprise efficiency and quality.

The present application relates to a kind of stripping liquid rectification regeneration system and regeneration method, it is related to stripping liquid regeneration technical field, including rectifying column, balance tank and vacuum unit, rectifying column top side is connected by being arranged drain pipe with balance tank, the rectifying column kettle section is connected with falling film evaporator;It further includes vaporizer by pipeline with rectifying column middle section position is connected, the feed end of vaporizer is connected with pre-processing component by pipeline;The pre-processing component includes processing tank and be in the ceramic filter of processing tank, electric rotating rod and preheater, the ceramic filter upper end is connected with electric rotating rod by transmission part, and transmission part both sides are symmetrically equipped with scale removal piece and scale removal piece, ceramic filter rotates under the drive of electric rotating rod, while driving scale removal piece and scale removal piece complete to the scale removal of ceramic filter upper end.The stripping liquid regeneration efficiency and effect of the present application are effectively improved.

The present application belongs to hydrogen production technology field, provide a kind of multi-source waste heat dynamic coupling's steady-state ammonia decomposition hydrogen production system and control method, including hydrogen production branch, waste heat control branch and controller, controller is according to the pressure difference of coke oven raw gas pipeline and converter gas pipeline, temperature data, adjust the opening of corresponding flow regulating valve, realize static pressure decoupling and steady-state mixed temperature, according to heat carrier temperature and ammonia purity, first intelligent distribution three-way valve opening ratio is adjusted, realize the dynamic distribution of waste heat energy, through the priority arbitration mechanism of outlet residual ammonia concentration sensor and intelligent three-way valve, priority guarantee the heat balance of reaction zone, even in extreme fluctuation working condition, also can ensure product hydrogen purity standard through load follow-up adjustment, meet the stringent requirements of downstream hydrogen-based shaft furnace to reducing gas quality, the present application is through waste heat cascade utilization and dynamic coupling's steady-state ammonia decomposition hydrogen production method, reduce energy consumption, improve the utilization efficiency of energy-saving hydrogen.

To provide a moisture removal device and the like that efficiently remove moisture of a moisture-containing liquid.SOLUTION: A moisture-containing liquid filled into a container is irradiated with microwaves, and a distance between a surface of the liquid filled into the container, and an emission part for emitting microwaves is held at a predetermined distance.SELECTED DRAWING: Figure 2

The application discloses a continuous hydrolysis and extraction purification integrated process of 3-isobutyl glutaric acid, and relates to the technical field of 3-isobutyl glutaric acid. A micro-channel hydrolysis reaction liquid is generated; a high-dispersion acidification mixed liquid is obtained; a high gravity continuous mass transfer and liquid-liquid separation are carried out by using a high-speed rotating centrifugal field, a primary organic extraction phase rich in a target product is extracted; liquid-liquid complex washing is carried out under pulse oscillation, and a purified extraction phase is obtained; organic extraction solvent is gasified and stripped, and a supersaturated liquid material without solvent residue is collected at the bottom; under a multi-stage programmed cooling gradient, nucleation and crystal growth are induced, and a high-purity 3-isobutyl glutaric acid product is extracted after online solid-liquid separation. The application significantly improves the generation quality of a target intermediate and the robustness of a reaction system.

This invention provides a method and system for purifying a cyclic ester stream. The method includes the step of continuously evaporating a solution stream containing cyclic esters, thereby converting all or part of the cyclic esters into a solid state. Specifically, it includes the following steps: (a) introducing the solution stream containing cyclic esters into a continuous evaporation concentration unit, thereby converting all or part of the cyclic esters into a solid state, to obtain a gaseous solvent and a stream A containing purified solid cyclic esters; (b) introducing the stream A containing purified solid cyclic esters obtained in step (a) into a particle size control unit, to obtain a stream B containing purified solid cyclic esters; optionally, (c) introducing the stream B containing purified solid cyclic esters obtained in step (b) into a solid-liquid separation unit, to obtain a filtrate and a stream C containing purified solid cyclic esters; (d) drying the stream B containing purified solid cyclic esters obtained in step (b) or the stream C containing purified solid cyclic esters obtained in step (c), to obtain dried glycolide particles. This invention solves the technical problems of high difficulty in particle size control, insufficient chemical purity of the product, and inability to operate continuously in existing glycolide purification technologies.

The application provides an evaporation condensing device and a working method. The evaporation condensing device comprises an evaporation assembly, the evaporation assembly comprises an evaporator, a heater and a water supply tank. The heater is arranged at the lower part of the evaporator and is used for heating water in the evaporator to evaporate into water vapor. The water supply tank is arranged at the lower side of the evaporator and is communicated with the bottom of the evaporator. The condensing assembly comprises a condenser, a cooler and a water discharge tank. The condenser is arranged in sequence and is spaced apart from the evaporator along the second direction. The cooler is arranged at the upper part of the condenser and is used for cooling the water vapor to condense into condensed water. The water discharge tank is arranged at the lower side of the condenser and is communicated with the bottom of the condenser. The water supply tank is arranged at the upper side of the water discharge tank along the vertical direction. A communication pipe is arranged between the evaporator and the condenser, and the two ends of the communication pipe are communicated with the evaporator and the condenser respectively. The siphon height of the water supply tank is smaller than the spacing between the communication pipe and the water supply tank along the vertical direction. The efficiency of evaporation and condensation is improved, and the consumption of energy is saved.

This invention relates to the field of biopharmaceutical wastewater treatment, specifically a biopharmaceutical wastewater treatment device. The device includes a housing with an evaporation chamber inside. An anti-backflow mechanism is fixedly connected to the top of the evaporation chamber. A treatment chamber is also located inside the housing, and the treatment chamber and evaporation chamber are horizontally positioned. In this biopharmaceutical wastewater treatment device, when the equipment stops working, the components inside the transmission chamber gradually cool down. As the temperature decreases, residual condensate extends into the transmission pipe for backflow. However, due to the temperature drop, the hydraulic oil in the telescopic rod cools and depressurizes, causing the telescopic rod to contract and block the upper pipe again. Furthermore, the cooling process allows the airbag to return to normal. The backflowing liquid can then enter the guide pipe through the sealing groove for collection, preventing wastewater backflow and pollution.