170 results about "Salt crystallization" patented technology

The invention discloses a concrete model under salt freezing circulation, a construction method and a construction method of a damage evolution model, and a salt freezing circulation process is simplified into processes of continuous accumulation of sulfate crystals in pores, water condensation into ice, and repeated expansion and contraction of ice melting into water. The process of continuous accumulation of pore sulfate crystals in the sample concrete model and the process of mortar reduction and porosity increase in the sample concrete model are simulated, model parameters are adjusted, so that the salt freezing process of the sample conforms to the actual situation, and the service life of concrete is predicted through the sample concrete model. A specific time node reaching a failure standard is accurately predicted; the invention discloses a concrete damage evolution model based on the combination of continuous damage mechanics and a crack propagation theory, and aims to solve the problem that a traditional concrete damage model cannot accurately predict concrete damage evolution in a salt freezing circulation environment, and particularly, the long-term influence of the salt freezing environment on a concrete structure is lack of accurate quantitative analysis.

The invention discloses an electric pulse and salt crystallization synergetic coal seam anti-reflection system and method, and the system comprises a salt solution preparation tank which is internally provided with a Na2SO4 saturated solution; one ends of the first high-pressure water injection pump and the second high-pressure water injection pump are respectively communicated with the salt solution preparation tank, and the other ends of the first high-pressure water injection pump and the second high-pressure water injection pump are respectively communicated with the negative electrode drill hole and the positive electrode drill hole through a first pipeline and a second pipeline; the positive electrode end of the electric pulse generating device is connected with a positive electrode, the positive electrode is arranged in the positive electrode drill hole, the negative electrode end of the electric pulse generating device is connected with a negative electrode, the negative electrode is arranged in the negative electrode drill hole, and the electric pulse generating device is configured to generate a large number of microfractures in the coal body by utilizing the electrogenerated shock wave and the Joule heating effect and drive the Na2SO4 saturated solution to diffuse towards the deep parts of the fractures; and the first cooling jet device and the second cooling jet device are respectively communicated with the negative electrode drill hole and the positive electrode drill hole and are configured to respectively inject a low-temperature medium into the negative electrode drill hole and the positive electrode drill hole.

The invention belongs to the technical field of energy storage batteries, and particularly relates to a desalting, dehumidifying and cooling integrated thermal management device and method for a marine environment energy storage battery. The device is composed of an energy storage battery module, an air inlet dehumidification and desalination module, an air return reprocessing module, a salt crystallization and separation module, a cold source heat exchanger and a heat source heat exchanger. Wherein the inlet air dehumidification and desalination module cools inlet air by utilizing a first solvent and inlet air cross flow heat exchange mode, meanwhile, the first solvent dissolves salt mist ions in inlet sea wind, and the purposes of reducing the dew point temperature and dehumidifying the inlet sea wind are further achieved; in order to ensure water-salt concentration balance of the first solution, a salt crystallization precipitation module and a return air retreatment module are adopted to jointly adjust the concentration of the first solution. A solution is provided for safe and reliable operation of the energy storage battery system under the ocean high-temperature, high-humidity and high-salt links.

The invention discloses a hot-dip galvanizing strip steel production waste gas treatment mechanism, and relates to the technical field of hot-dip galvanizing strip steel production, the hot-dip galvanizing strip steel production waste gas treatment mechanism comprises a treatment tower body, the treatment tower body comprises a gas inlet dispersion area, a treatment area I, a treatment area II, a treatment area III and a gas exhaust area which are sequentially distributed from bottom to top, and the left side of the upper part of the gas inlet dispersion area communicates with a gas inlet; the top of the exhaust area is communicated with an exhaust port, and the treatment tower body is provided with a spraying unit for spraying alkaline liquid drops to the acid waste gas. The device has the advantages that the main movable assembly and the driving assembly are matched to drive the filler to move in a small range in the annular space, and the filler collides with each other, so that the surface and internal pores are prevented from being blocked by salt crystals and other dirt generated in the reaction; the disturbance block further disturbs the motion trail of the filler while the filler collides in a small range all the time; and spraying operation is matched for flushing, so that the anti-blocking effect is further improved, and the waste gas treatment efficiency is improved.

The invention relates to the technical field of sodium chloride crystal preparation systems, in particular to a sodium chloride crystal preparation system which comprises a crystal separation tank, an annular isolation cylinder 2, a first heat exchanger, a center cylinder and an annular isolation cylinder. The annular isolation barrel is provided with an upper guide section and a lower acceleration section which are sequentially connected, the upper end of the upper guide section is fixedly connected to the inner circumferential wall of the crystallization separation tank, the upper guide section is gradually and downwards inclined from outside to inside of the crystallization separation tank, and the lower acceleration section is located at the lower end of the upper guide section. Through circulating conveying of the first conveying pump and cooperation of the first conveying pump, the heating mechanism and the fine grain eliminating mechanism, circulating treatment of brine in the crystallization separation tank is achieved, the functions of particle size grading and particle size growth are achieved, the salt crystallization process is optimized, the proportion of the salt product with the size smaller than 450 micrometers is reduced to be within 18% from 45%, and the crystal breaking force is enhanced and is increased to 3.30-6.77 N from 1.39-6.61 N.

The invention discloses an impurity removal device and an impurity removal method for salt separation crystallization mother liquor of chemical high-salt wastewater, and belongs to the technical field of comprehensive utilization of water resources. The impurity removal device comprises a high-density sedimentation tank for receiving high-salinity wastewater salt separation crystallization mother liquor; the first-stage reactor is connected with the high-density sedimentation tank through a pipeline; the second-stage reactor is connected with the first-stage reactor through a pipeline; the three-stage reactor is connected with the filtering device through a pipeline, the filtering device is connected with the mesoporous adsorption tower through a pipeline, the mesoporous adsorption tower is connected with the chelating resin tower through a pipeline, and the chelating resin tower is connected with the modified zeolite adsorption tower through a pipeline. The method has the advantages that equipment configuration is reasonable, and good stability and operability are achieved; the method provided by the invention has outstanding process route originality and low treatment cost, and realizes liquid phase treatment and high-valued cyclic utilization of the chemical high-salinity wastewater salt separation crystallization mother liquor.

The invention discloses an anti-crystallization overflowing regulating valve and a using method thereof, the anti-crystallization overflowing regulating valve comprises a valve body, the valve body is formed by splicing an input pipe and an output pipe, a ball valve wraps the joint of the input pipe and the output pipe, a valve handle capable of driving the ball valve to rotate is arranged on the ball valve, and a removing assembly used for removing crystals is arranged in the input pipe. By arranging the removing assembly, flow guide blades can be driven to rotate by means of impact force of waste water, a driven ring and a driven shaft which are connected with the flow guide blades can synchronously rotate at the first time, accordingly, arc-shaped cutters are driven to rotate to efficiently scrape and remove crystals on the inner wall of the input pipe, and the blocking problem caused by accumulation of the crystals is effectively prevented; and meanwhile, the first cutting edge and the second cutting edge of the arc-shaped cutter form a composite cutting angle, crystal substances attached to the inner wall of the input pipe are cut in two times, so that the resistance of the crystal substances to the arc-shaped cutter is reduced, and salt crystal substances attached to the pipe wall can be efficiently eradicated.

The invention discloses an interface evaporation seawater desalination device based on an armor Janus structure and a preparation method, and relates to the technical field of seawater desalination devices.The device comprises a black copper net frame and a carbon nano tube sponge, the carbon nano tube sponge is filled in the black copper net frame, the black copper net frame is made of a super-hydrophobic material, and the carbon nano tube sponge is filled in the black copper net frame. The carbon nanotube sponge is made of a super-hydrophilic material; the super-hydrophilic carbon nanotube sponge on the inner layer can quickly adsorb and transmit seawater by virtue of excellent hydrophilicity and a porous network structure, and a water micro-channel penetrating through the whole body is efficiently constructed; the super-hydrophobic black copper net on the outer layer is like a protective barrier, and the super-hydrophobic characteristic of the surface of the super-hydrophobic black copper net can remarkably reduce the adhesive force between seawater and the net surface, so that salt crystals possibly separated out in the evaporation process are difficult to adhere to the surface of the super-hydrophobic black copper net, and the problem of interface blockage caused by accumulation of the salt crystals is effectively avoided.

The invention discloses a preparation method of salt crystallization prevention aerogel with a vertical microchannel structure. The preparation method comprises the following steps: step 1, preparing a PPy-PDA composite photo-thermal material; step 2, preparing a PVA / HPC solution; step 3, preparation of a PVA / HPC coated PPy-PDA precursor solution; and step 4, preparing the PVA / HPC coated PPy-PDA composite aerogel with the vertical micro-channel structure. The salt crystallization prevention aerogel with a vertical micro-channel structure is prepared by utilizing a directional freezing and chemical cross-linking technology, the salt crystallization prevention aerogel has excellent photo-thermal response capability and energy conversion efficiency, and the vertically arranged micro-channel structure can promote rapid directional transportation of moisture and salt ions and inhibit salt accumulation and crystallization; meanwhile, the chemical crosslinking strategy enhances the mechanical stability and durability of the gel network. The preparation process is controllable, and the material is green and environment-friendly and can be applied to the field of solar interface evaporation desalination of high-salinity wastewater.

The present invention discloses a near-zero discharge system and method for high-salt and high-concentration organic industrial wastewater, which includes a freezing crystallization system, a fine crystal clarification and separation system, a nanofiltration salt separation system, a sodium chloride evaporation crystallization system, a sodium sulfate evaporation crystallization system, a mixed salt crystallization system, a hot melt system, and a miscellaneous salt drying system. Through the process of the present invention, most of the sulfate in the water is first precipitated in the form of thenardite decahydrate. As the temperature rises or the fine crystals are reversely dissolved, the sulfate content in the lean nitrate solution is increased, which increases the difficulty of operating the sodium chloride evaporation crystallization system. By rotary immersion ultrafiltration, the thenardite decahydrate can be effectively separated, and a large amount of pre-ultrafiltration pretreatment can be omitted; the water produced by the rotary immersion ultrafiltration enters the nanofiltration system, which can increase the mass ratio of sodium chloride: sodium sulfate in the lean nitrate solution to more than 100; the mixed salt after crystallization is re-salted by hot melting, which greatly reduces the output of miscellaneous salts.

The application provides a concentrated brine interface evaporation device for anti-salt crystallization, comprising a photothermal evaporation unit, the photothermal evaporation unit comprises a hydrophilic hollow porous tube and a photothermal material layer coated on the outside of the hydrophilic hollow porous tube, the hollow axial direction and the diameter direction of the hydrophilic hollow porous tube form a three-dimensional multi-directional evaporation channel, on the one hand, the photothermal evaporation rate is improved, on the other hand, the salt ions in the photothermal material layer are quickly exchanged through the convection effect, and then flow into the inner layer low-concentration water, so that the photothermal layer is prevented from appearing salt crystallization. The inner layer and the peripheral wall of the hydrophilic hollow porous tube are formed with a porous structure through the hydrophilic hollow porous tube, the convection effect of the liquid in the hollow tube is enhanced, the evaporation amount of the device is evenly distributed to the surrounding through the three-dimensional structure design, the concentration of the evaporation surface is prevented from being too high, and the synergistic effect makes the device effectively inhibit the crystallization of salt in the device during the evaporation process.

The invention discloses a resourceful treatment system and method for wastewater with high organic matter content and high sodium nitrate content. The system comprises a wastewater pretreatment system, a nanofiltration unit, a sodium chloride evaporation unit, a sodium nitrate evaporation and crystallization unit, a sodium sulfate evaporation unit, a wet catalytic oxidation device, a mixed salt evaporation unit and a carnallite drying unit. The method comprises the following steps: (1) sodium nitrate crystallization; (2) crystallizing sodium sulfate; (3) catalytic oxidation; and (4) mixed salt crystallization. The system has the advantages that the system is simple in connection structure and easy to realize, sodium nitrate crystal salt is not produced in the rear-end mixed salt evaporation process, and meanwhile, the part of sodium nitrate has relatively high economic benefits; according to the method, the concentration multiple of mixed salt evaporation is increased, and the amount of dried carnallite is reduced, so that the carnallite treatment cost is reduced.

The low-energy-consumption and high-efficiency seawater desalination and water purification process is achieved by applying photothermal conversion materials such as a carbon nanotube film, and finally fresh water meeting the drinking standard is obtained. Meanwhile, seawater (namely brine) which is concentrated to reach the critical concentration of salt crystallization is conveyed to the house type crystallizing pond. Afterwards, under the action of continuous solarization and wind blowing, water is promoted to be further evaporated until the brine reaches a supersaturated state, so that salt such as sodium chloride is gradually separated out to form salt crystals, and the table salt is obtained.

The present application discloses a salt cavern brine circulation fissure repair system and repair method, comprising a brine injection pipe, a brine outlet channel, a surface brine circulation device and a surface brine pump system. The brine injection pipe and the brine outlet channel are located in the salt cavern wellbore, and the brine injection pipe is located on the center line of the salt cavern wellbore space. The brine outlet channel is an annular space surrounded by the salt cavern wellbore and the brine injection pipe. The brine injection pipe is connected to the surface brine pump system, the brine outlet channel is connected to the surface brine circulation device, and the surface brine circulation device is connected to the surface brine pump system. Brine is injected into the salt cavern through the brine injection pipe, and the brine flows back to the surface brine circulation device through the brine outlet channel, and then circulated into the salt cavern through the surface brine pump system. The present application uses a brine positive circulation system in the wellbore, combined with a salt crystallization effect driven by temperature difference, to achieve efficient repair of the damage and leakage problem at the second interface position of the salt cavern injection and production pipe, thereby eliminating the hidden danger of gas leakage.

The application discloses a cleaning method for a spotting needle of a chip spotting instrument, and comprises the following steps: preparing a cleaning solution, wherein the cleaning solution comprises A liquid, B liquid and n groups of mixed liquid; and sequentially using the B liquid, the n groups of mixed liquid and the A liquid to clean the spotting needle; wherein the A liquid is 2-4% (V / V) Hellmanex III aqueous solution, the B liquid is 70-80% (V / V) isopropyl alcohol aqueous solution, the n groups of mixed liquid are obtained by mixing the A liquid and the B liquid and have different isopropyl alcohol concentrations, and n is greater than or equal to 1. The Hellmanex III aqueous solution is used as the A liquid and the isopropyl alcohol aqueous solution is used as the B liquid, so that the residual protein in the spotting needle can be better removed; meanwhile, the residual protein can be cleaned while avoiding the influence of the isopropyl alcohol solution on the next protein sample spotting, and SDS is not needed to be used, so that the salt crystallization is avoided to block the spotting needle.

This invention provides a quadruple ion-coupled erosion-protected concrete and its preparation method, relating to the field of special concrete materials technology. The concrete comprises basic components and functional admixtures. The basic components include cementitious materials, aggregates, and water. The functional admixtures include a coupling ion locking agent, a dual-interface film-forming aid, and a salt-expansion-resistant crack-resistant agent. The coupling ion locking agent includes calcined calcium aluminum hydrotalcite and diethylenetriamine pentacarboxylate; the dual-interface film-forming aid includes isobutyltriethoxysilane and lithium silicate; and the salt-expansion-resistant crack-resistant agent includes calcium sulfoaluminate expansion agent and lightly calcined magnesium oxide. The three admixtures work synergistically from three dimensions: active ion solidification, in-situ interface shielding, and full-cycle volume compensation, achieving simultaneous solidification of the four erosion ions, continuous blocking of penetration channels, and effective offsetting of salt crystallization expansion stress. This ensures the long-term safe service of the concrete under extreme conditions of high water pressure, high humidity, alternating wet and dry conditions, and multi-ion coupling erosion.

The invention discloses an evaporative crystallization salt separation system and method for high-salinity wastewater. The system comprises a first nanofiltration unit, a first concentrated water preheating unit, a first falling film concentration unit, a first primary-effect evaporation unit, a secondary-effect finished salt unit, a last-effect carnallite unit, a carnallite incineration unit, a second nanofiltration unit, a second concentrated water preheating unit and a second falling film concentration unit which are communicated in sequence, a second primary evaporation unit and a second crystallization finished salt unit; the secondary-effect finished salt unit is used for separating out divalent finished salt, the last-effect carnallite unit is used for separating out carnallite, and the crystallized finished salt unit is used for separating out monovalent finished salt. According to the system, through coupling of three processes of nanofiltration pre-concentration, directional crystallization and carnallite incineration regeneration, the bottleneck of a traditional technology is broken through, and carnallite, high-purity sodium sulfate finished product salt and sodium chloride finished product salt are separated out.

The invention discloses an experimental device and an experimental method for a brine discharging pipe column in a salt cavern energy storage cavern shaft, relates to the technical field of pipe column experimental devices, and aims to solve the problem of how to improve the accuracy of a salt crystallization experiment result of the brine discharging pipe column. The experimental device comprises an experimental tubular column, a first water injection assembly and a second water injection assembly, the experimental tubular column comprises an outer-layer tubular column body and an inner-layer tubular column body located in the outer-layer tubular column body, and a cooling flow channel is formed between the outer circumferential face of the inner-layer tubular column body and the inner circumferential face of the outer-layer tubular column body; the first water inlet of the inner-layer tubular column and the second water outlet of the outer-layer tubular column are located at one end of the experimental tubular column, and the first water outlet of the inner-layer tubular column and the second water inlet of the outer-layer tubular column are located at the other end of the experimental tubular column. A water outlet of the first water injection assembly is connected with the first water inlet, and a water return port of the first water injection assembly is connected with the first water outlet and used for injecting brine. A water outlet of the second water injection assembly is connected with the second water inlet, and a water return port of the second water injection assembly is connected with the second water outlet and used for injecting cooling water.

This utility model discloses a salt replenishment device for aquaculture to prevent salt accumulation. It includes a mixing component and a salt inlet component installed on one side of the mixing component, as well as a water tank component placed below the mixing component. The water tank component includes a base plate, with an mounting block installed at the top center of the base plate. A water distribution hopper is fixedly installed on the top of the mounting block. Three sets of telescopic rods are installed on the top of the base plate, and water troughs are installed on the tops of the telescopic rods. The salt inlet component includes a salt feeder, the outlet of which is connected to the mixing component, and a salt hopper installed at the inlet of which. This utility model uses telescopic rods to move the water tank upwards, creating a gap between the water tank and the water distribution hopper. This gap, combined with the inclined design of the water tank, allows excess salt solution to be discharged, preventing salt crystals formed from the evaporation of residual brine from mixing with fresh brine and resulting in a higher actual salt content.

This utility model relates to the field of concentrated brine technology and discloses a concentrated brine concentration device for the steel industry. The device includes a concentration tank with a cover on top and a concentration assembly inside. In this concentrated brine concentration device, steam contacts the liquid as much as possible before entering the outlet, releasing more latent heat. Compared to direct top dissipation or simple heating, this results in a larger heat exchange area, higher heat utilization, and reduced energy consumption. Simultaneously, the steam pipes are heated to prevent their temperature from falling below the waste liquid temperature, thus avoiding cold spots and preventing salt crystallization on lower surfaces, improving heat exchange efficiency. Regular scraping by a scraper removes initial deposits of crystals or soft scale, preventing further accumulation into hard scale, keeping the steam pipes and concentration tank surface clean, improving heat exchange efficiency, and reducing operating energy consumption.

The present invention relates to the technical field of edible salt preparation, and particularly discloses a solar energy and electric heating combined driven edible salt crystal preparation method and apparatus, the apparatus comprises: a crystallization pool, the wall surface of the crystallization pool comprises a heat conduction contact surface layer, a sealing heating interlayer and a thermal insulation substrate, a protective cover capable of sealing the crystallizing pond is hinged to an opening of the crystallizing pond; the heating module comprises an electric heat conduction element arranged in the sealed heating interlayer, a fixed power source and a solar storage battery, the fixed power source and the solar storage battery can supply power to the electric heat conduction element, and the solar storage battery is in electric signal connection with a photovoltaic panel; the stirring assembly comprises a plurality of stirring shafts arranged in the crystallizing pond, stirring blades arranged on the stirring shafts respectively and a power mechanism for driving the stirring shafts to rotate, so that the problems that in traditional edible salt crystallization preparation, edible salt is prone to being polluted, and the crystallization process is restricted by weather are solved.

The invention discloses an aerogel-based evaporator with a double-network structure as well as a preparation method and application of the aerogel-based evaporator, and relates to the technical field of water treatment. According to the aerogel-based evaporator, sodium alginate and nanocellulose are used for constructing an interpenetrating dual-network as a framework, acidified carbon nanotubes are combined as a photo-thermal material, and the aerogel-based evaporator is prepared through a sol-gel method and a freeze-drying process. The double-network structure synergistically exerts the advantages of super hydrophilicity and high mechanical strength, and salt ion deposition and crystallization are effectively inhibited; the acidified carbon nanotubes guarantee efficient photo-thermal conversion, and the solar energy utilization rate is improved. The evaporator successfully solves the problems that traditional equipment is low in solar energy utilization rate, salt crystallization damages the evaporator and the like, has excellent mechanical stability, wide water body adaptability and light environment adaptability, and is environment-friendly in preparation process, easy to produce on a large scale and suitable for industrial production. And an efficient and stable novel technical scheme is provided for solar-driven water purification and seawater desalination.

The application provides a preparation method of MK-0616 south fragment, and relates to the technical field of polypeptide synthesis. The preparation method comprises the following steps: condensation reaction of alkyl primary alcohol 17 and protected amino acid 2 to obtain intermediate 18; deprotection reaction of the intermediate 18 to obtain intermediate 19; condensation reaction of the intermediate 19 and compound 4 to obtain intermediate 20; deprotection reaction of the intermediate 20 to obtain intermediate 21; condensation reaction of the intermediate 21 and compound 10 to obtain intermediate 22; deprotection reaction of the intermediate 22 to obtain intermediate 23; condensation reaction of the intermediate 23 and compound 14 to obtain intermediate 24; hydrolysis reaction of the intermediate 24 to obtain a crude product of MK-0616 south fragment; salt crystallization of the crude product of MK-0616 south fragment to obtain intermediate 15; and free acidization of the intermediate 15 to obtain a pure product of MK-0616 south fragment.

The invention discloses a method for predicting an ammonium salt corrosion high-risk area of a catalytic cracking fractionation device. The method comprises the following steps: acquiring process structure parameters of a heavy oil catalytic cracking fractionation device to be detected and physical property data of reaction oil gas composition; establishing a process calculation model of the fractionation device according to the process characteristics and the physical property data of the reaction oil gas composition; solving material flow parameters in the fractionation device by using the model, and analyzing material flow characteristics such as vapor-liquid phase distribution, temperature distribution and corrosive medium component distribution in the device; calculating an ammonium salt crystallization temperature based on the material flow characteristics; and identifying and determining a high-risk area of ammonium salt crystallization corrosion in the fractionation device by combining the material flow characteristics and the ammonium salt crystallization temperature. The method can rapidly and accurately predict the ammonium salt crystallization corrosion high-risk area in the heavy oil catalytic cracking fractionation device, effectively reduces corrosion damage, optimizes anti-corrosion measures, improves the safe operation performance of the device, and is suitable for corrosion prediction and protection of petrochemical equipment.

The invention discloses a lithium salt crystallization method, which adopts a lithium precipitation kettle with two layers of ultrasonic generators arranged at diagonal positions in a kettle body, and comprises the following steps: starting the ultrasonic generators, and adjusting the ultrasonic frequency to be 20-150KHz; adding sodium carbonate and a lithium sulfate solution into the lithium precipitation kettle by adopting an inverse addition method; continuously carrying out ultrasonic reaction for 2-4 hours, and turning off the ultrasonic generator; and carrying out solid-liquid separation to obtain lithium carbonate. According to the invention, the scaling phenomenon in the reaction kettle can be basically eliminated completely, and scale blocks do not need to be cleaned manually; the content of impurities in the lithium salt is reduced: the content of sulfate radicals is reduced to 0.07% or below from 0.08% in the prior art and can be reduced to 0.045%, and the content of sodium ions is reduced to 0.02% or below from 0.025% in the prior art and can be reduced to 0.01% or below; and the particle size of the lithium salt crystal particles is reduced from the average particle size of 25-40 microns in the existing process to 3-20 microns in the process disclosed by the invention, and the appearance of the particles is more uniform.

The utility model discloses a high-salt waste liquid incineration system, which belongs to the technical field of waste liquid incineration treatment equipment and comprises an incinerator, a waste heat boiler, an air preheater, an economizer, a quench tower, a dry absorption device and a bag-type dust collector. New flue gas generated by combustion in the incinerator sequentially enters the waste heat boiler, the air preheater, the economizer, the quench tower, the dry type absorption device and the bag-type dust collector. A flue gas inlet of the bag-type dust collector is communicated with an incineration hearth of the incinerator through a backflow pipeline, backflow flue gas is guided to flow back into the incineration hearth, and crystal nucleuses are provided for crystallization of molten salt in new flue gas; the molten salt can be promoted to be condensed into dust-shaped crystals, and the dust-shaped crystals are adsorbed by negative pressure at the slag chute and discharged; the phenomenon that molten salt adheres to the furnace wall and is hung on the furnace wall is effectively avoided, and the situation that the slag sliding opening is blocked is avoided.

This application relates to a flexible packed bed ultragravity evaporator, including an evaporation tower and an isolation air plate disposed within the evaporation tower. The isolation air plate divides the space inside the evaporation tower into an evaporation space and an air inlet space. It also includes a hollow water separator disposed within the evaporation tower and rotatably connected to the evaporation tower, a water inlet pipe with its first end connected to a water source and its second end extending into the first end of the hollow water separator, flexible packing material filled within the evaporation space, and an ultraviolet cleaning lamp disposed on the inner wall of the evaporation tower. The first end of the hollow water separator communicates with the space outside the evaporation tower, the air inlet communicates with the air inlet space, and the exhaust port communicates with the evaporation space. The flexible packed bed ultragravity evaporator disclosed in this application uses a direct gas-liquid contact method to reduce the complexity of the equipment structure. It uses flexible packing material as the intermediate medium for gas-liquid contact, increasing the contact area while avoiding corrosion problems. Simultaneously, it can remove salt crystals from the surface of the flexible packing material, solving the clogging problem.

The invention relates to the technical field of polyurethane sponge, in particular to composite sponge for seawater desalination and a preparation method of the composite sponge. Comprising the following steps: S1, pretreating sponge; s2, putting the pretreated sponge, dopamine and lithium salt into a tris (hydroxymethyl) aminomethane hydrochloride buffer solution, and carrying out self-polymerization reaction; s3, soaking the sponge modified by polydopamine-lithium chloride in an ethanol solution of acidified carbon nanotubes for ultrasonic treatment; and S4, spraying the n-hexane mixed solution of polydimethylsiloxane on the peripheral area of the side surface of the acidified carbon nanotube modified sponge, and curing to obtain the multifunctional composite sponge. Through the bionic micro-nano structure design, the material is endowed with the dynamic salt-resistant characteristic, the problem of performance degradation caused by salt crystallization blockage of a traditional evaporator is solved, and the service life of equipment is remarkably prolonged.

The application discloses a carbon dioxide salt crystallization observation system and method, relates to the technical field of carbon dioxide storage, and is characterized in that a micro-nano fluidic chip is assembled in a holder, a carbon dioxide injection device is connected with a first injection hole of the micro-nano fluidic chip, a brine injection device is connected with a second injection hole of the micro-nano fluidic chip, a temperature regulation device is connected with the holder, and an image shooting device is connected with an image acquisition device. The micro-nano fluidic chip can be used to simulate salt crystallization behavior at a micro scale. By regulating the injection pressure of different phase carbon dioxide through the carbon dioxide injection device, the injection pressure of different types of brine through the brine injection device, and the internal temperature of the holder through the temperature regulation device, and in combination with the image acquisition device, the salt crystallization picture of the micro-nano fluidic chip shot by the image shooting device can be acquired in real time, so that the dynamic evolution process of salt crystallization under different temperature, pressure, phase carbon dioxide and brine type factors can be dynamically observed in real time.

The invention discloses a modularized self-recording type rapid installation box for tide level equipment, relates to the technical field of installation boxes for tide level equipment, and aims to solve the technical problem that when a traditional vertical heat dissipation hole is impacted by surge, water flow is prone to directly filling a heat dissipation hole in the top of a box body along a hole channel, the modularized self-recording type rapid installation box comprises an installation frame, and a sealing mechanism and a ventilation mechanism are arranged in the installation frame; and an arc-shaped cover plate is fixedly mounted at the top of the mounting frame. The designed heat dissipation holes are changed into inclined downward arrangement, water flow slides down along the inclined surfaces of the hole walls during surge impact, the inclined structures enable the outer sides to be low, the inner sides to be high and residual water to be discharged outwards along the inclined surfaces in the hole channels, accumulated water retention and salt crystallization are avoided, the protection head is a conical cover body, and the water flow slides down along the inclined surfaces during surge impact, so that the protection effect is improved. Therefore, seawater is further prevented from entering, the waterproof performance is remarkably improved, and the problem that when a traditional vertical heat dissipation hole is impacted by surge, water flow is prone to directly filling the heat dissipation hole in the top of the box body along a hole channel is solved.