203 results about "Hard water" patented technology

The invention discloses a potassium fulvate chelated macroelement water-soluble fertilizer with stress resistance and growth promotion functions, and relates to the technical field of water-soluble fertilizers, the potassium fulvate chelated macroelement water-soluble fertilizer comprises the following raw materials by weight: 167-210 parts of mineral source potassium fulvate, 450-460 parts of potassium nitrate, 300-310 parts of urea, 150-160 parts of potassium dihydrogen phosphate, 30-40 parts of potassium sulfate, 15-25 parts of EDTA-disodium, and 5-15 parts of citric acid. 0.5 to 1.5 parts of brassinolide and 4 to 6 parts of polyaspartic acid; according to the potassium fulvate chelated macroelement water-soluble fertilizer with the stress-resistant and growth-promoting functions, through chelation cooperation of potassium fulvate and nitrogen, phosphorus and potassium, the solubility of the chelated phosphorus element in water is increased, and the chelated phosphorus element can be more uniformly distributed in soil; by adopting an EDTA-disodium and citric acid composite chelating system, volatilization and loss of nitrogen elements are reduced, the problem of precipitation of calcium, magnesium and phosphorus is solved, and the soil conditioner is suitable for hard water areas and especially has outstanding performance in saline-alkali soil and arid areas.

The embodiment of the utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a controller, a water inlet of the water softening system is used for receiving raw water, and a water outlet of the water softening system can output soft water; a water inlet of the water purification system is communicated with a water outlet of the water softening system, a water outlet of the water purification system is used for outputting purified water, the water purification system comprises a filtering system and a wastewater drainage pipeline, a water inlet of the filtering system is communicated with the water inlet of the water purification system, and a water outlet of the filtering system is communicated with the water outlet of the water purification system; a wastewater port of the filtering system is communicated with a wastewater drainage pipeline; the controller is connected with the soft water system and is connected with the wastewater drainage pipeline; when the water outlet of the water softening system outputs hard water, the controller is used for controlling the wastewater drainage pipeline to increase the wastewater discharge capacity so as to protect the filtering system, and the filter element can have the normal service life.

The invention relates to the technical field of cleaning agents, and discloses a biodegradable environment-friendly cleaning agent, which comprises: a composite surfactant system comprising at least one nonionic surfactant, an ampholytic surfactant and a chelating functional surfactant; the plant extract oil system comprises limonene and a eucalyptus oil mixture; the functional particle system comprises nanoscale enzyme microcapsules and slow-release type oxidized particles; the natural polysaccharide stable network system comprises at least two polysaccharide thickeners and a bio-based cross-linking agent, and the assistant system comprises a metal ion chelating agent, a buffer acid system and water. By introducing sodium polyaspartate as a green chelating surfactant, efficient chelating of calcium and magnesium ions under a hard water condition is realized, the cleaning power is remarkably improved, water stain residues are reduced, and the cleaning performance with wider adaptability is obtained.

The invention discloses modified humic acid as well as a preparation method and application thereof, and relates to the technical field of humic acid modification. The preparation method comprises the following steps: activating mineral source humic acid, and adding a manganese-based activator to obtain activated humic acid; adding activated humic acid, a grafting agent and a silane monomer into a cross-linking system, stirring, standing, and then heating for reaction; after the reaction is finished, adjusting the pH value to be alkaline, keeping heating and stirring, and then drying to obtain modified humic acid; wherein the grafting agent comprises the following raw materials: sodium sulfite and acetylacetone. The modified humic acid still has high water solubility in hard water, and flocculent precipitate formed by the humic acid and metal ions can be avoided.

The invention relates to a preparation method of a carboxylate dispersant and an application of the carboxylate dispersant in a suspending agent, and belongs to the technical field of dispersants.The carboxylate polymer containing carboxyl, polyethylene glycol and slow-release chelating agent nanoparticles are polymerized together to form a comb-shaped structure; the sulfonic acid group on the carboxylate dispersant is ionized into-SO3-, the surfaces of pesticide particles are negatively charged, the electrostatic repulsion in the system is enhanced, the collision among the softened pesticide particles can be weakened, the sedimentation trend of the pesticide nanoparticles is weakened to a certain extent, and the stability of the suspension system is improved. Meanwhile, sodium ethylene diamine tetracetate in the slow-release chelating agent nano-microspheres can be slowly released, the sodium ethylene diamine tetracetate is preferentially chelated with calcium ions and magnesium ions in water, the calcium ions and the magnesium ions are prevented from being combined with sulfonic acid and carboxylic acid groups on the carboxylate dispersing agent, and the comb-shaped structure of the carboxylate dispersing agent has strong steric hindrance, so that the carboxylate dispersing agent can be used for dispersing calcium ions and magnesium ions in water. The effect of physically blocking calcium and magnesium ions can be achieved.

The utility model relates to the technical field of valve equipment, in particular to a flow-adjustable ball valve seat which comprises a valve seat body, and a circulating hole is formed in the side wall of the valve seat body. Through the arrangement of the first connecting piece, the mounting plate, the first threaded hole, the second threaded hole, the first threaded groove and the mounting bolt, after the first connecting piece, the mounting plate and the valve seat body abut against one another and are fixed through the mounting bolt and threads of the first threaded hole, the second threaded hole and the first threaded groove, the first connecting piece, the mounting plate and the valve seat body abut against one another; hard water can be filtered by the ion exchange resin filter screen plate when entering the mounting plate through the first connecting piece in the water inlet pipe, heavy metal ions and impurities in the water can be removed by ion exchange resin in the ion exchange resin filter screen plate, and the hardness of the water can be adjusted; at the moment, the filtered water cannot form scale in the valve ball groove after entering the valve seat body, so that the scale is prevented from depositing in the valve ball groove to corrode metal substances, and the service life of the valve seat body is prolonged.

The embodiment of the utility model discloses a purified water dispenser, a control method and a computer readable storage medium, the purified water dispenser comprises a water softening system, a water purifying system and a controller, a water inlet of the water softening system is used for connecting tap water, and a water outlet of the water softening system can output soft water; a water inlet of the water purification system is communicated with a water outlet of the water softening system, a water outlet of the water purification system is used for outputting purified water, the water purification system comprises a pressurizing pipeline and a filtering system, a water inlet of the pressurizing pipeline is communicated with the water inlet of the water purification system, and a water outlet of the pressurizing pipeline is communicated with a water inlet of the filtering system; a water outlet of the filtering system is communicated with a water outlet of the water purifying system; the controller is connected with the water softening system and is connected with the pressurizing pipeline; when the water outlet of the water softening system outputs hard water, the controller can control the water pressure in the pressurizing pipeline to be reduced, so that the reverse osmosis filter element can reach the normal service life.

The invention provides an efficient boiler scale and corrosion inhibition composite agent and a preparation method thereof, and belongs to the technical field of water treatment agents. The sulfonated polycarboxylic acid copolymer is introduced, crystal nucleus formation is inhibited through chelation of carboxylic acid groups of the sulfonated polycarboxylic acid copolymer, the dispersing capacity and hard water tolerance are improved through sulfonic acid groups, normal growth of microcrystals can be adsorbed and interfered through regulation and control of isopropanol on molecular weight, and loose scale bodies easy to remove are promoted to be formed; the polyether grafted copolymer is used as an efficient dispersing agent, the main chain of the polyether grafted copolymer is responsible for adsorbing and anchoring generated tiny scale bodies, and extended polyether long side chains of the polyether grafted copolymer form a steric hindrance shielding layer to wrap particles and suspend stably, so that the scale bodies are prevented from gathering and growing up; the two components cooperate to form a scale inhibition defense line, and cooperate with auxiliary agents such as the compound amine and the deoxidant in the system to construct a comprehensive protection network, so that long-period stable operation of the boiler system is guaranteed.

The invention discloses a power plant and coal plant spraying device for large-scale thermal power generation, and belongs to the technical field of spraying, the power plant and coal plant spraying device comprises a support, an electric telescopic rod is assembled on the side face of the support, a sliding block is fixedly connected to the telescopic end of the electric telescopic rod, a hard water pipe is fixedly connected to the interior of the sliding block, and a water tank is assembled on the side face of the support. The water tank is connected with a water hose through a water pump, the end, away from the water pump, of the water hose communicates with a hard water pipe, and a rectangular plate is fixedly connected to the outer side of the hard water pipe. Through interaction of the rectangular plate, the L-shaped support plate, the motor, the square frame, a short pipe, a forked fixing rod, a universal shaft, a connecting rod, an extrusion ball, an oval groove, protruding blocks and a spray head, the extrusion ball is extruded through the multiple sets of irregular protruding blocks, and then the spray head can conduct irregular swing spraying along with the extrusion ball under the action of the connecting rod; and therefore, spraying can be carried out at multi-angle positions.

The invention discloses a preparation method of a pesticide pollution remediation agent for groundwater of karst landforms, and relates to the technical field of groundwater pollution remediation. The method has the effect of enhancing pesticide degradation, pesticide pollutants can be efficiently degraded in a complex environment of karst underground water by compounding hard water-resistant fungi, dehalogenation bacteria and denitrifying bacteria, and a better remediation effect is achieved; the medicament can improve the stability and the adsorption capacity of the carrier, the bionic calcium phosphate nano carrier is adopted, the specific surface area is high, the adsorption capacity is excellent, the adsorption capacity on pollutants can be effectively enhanced, and the remediation effect is improved; the agent has an efficient repairing mechanism, the load capacity of the flora is enhanced through biological induction mineralization and physical adsorption enhancement of a bacterium-carrier complex, the release rate of the flora is controlled through an intelligent coating technology, and precise repairing is achieved.

The utility model discloses milk powder production pretreatment equipment, and belongs to the technical field of milk powder pretreatment equipment, the milk powder production pretreatment equipment comprises a constant temperature barrel and a control computer, the top of the constant temperature barrel is covered with a barrel cover, a stirring mechanism extending into the constant temperature barrel is fixedly arranged in the middle of the barrel cover, and two symmetrically arranged hard water pipes are hermetically arranged on the barrel cover; the bottom end of the hard water pipe is hermetically connected with an automatic rotary spraying head, and the top end of the hard water pipe is hermetically connected with a water supply hose; after fresh milk is treated and discharged, external water supply equipment can convey high-pressure water flow to a water supply hose and a hard water pipe, and finally the high-pressure water flow is sprayed out from an automatic rotary spraying head to wash a heating inner barrel and a stirring mechanism, so that the fresh milk attached to the heating inner barrel and the stirring mechanism is cleaned; and the automatic rotating spraying head can automatically rotate under the impact action of water flow to improve the cleaning effect, after cleaning is completed, the electric heating plate works again to enable the overall temperature of the heating inner barrel to rise, and moisture is evaporated to ensure that the interior of the barrel is clean and dry.

The present application relates to the technical field of cooling liquid, and particularly relates to a cooling liquid composition, a preparation method and application thereof.The cooling liquid composition comprises a metal corrosion inhibitor; the metal corrosion inhibitor is 5-aminothiophene-2-formamide and / or 3-aminothiophene-2-formamide.The cooling liquid composition provided by the present application has excellent corrosion protection performance for copper, stainless steel, 3003 aluminum, 4043 aluminum and 6063 aluminum and the like, prevents the occurrence of cooling liquid leakage during the use of high-power liquid cooling charging equipment, and brings safety risks; the cooling liquid composition can be compatible with various non-metallic materials, prolongs the service life of parts, has good sediment dispersion performance, hard water resistance and stability, and ensures the good heat dissipation circulation and stable operation of equipment.

The application relates to the field of water treatment, in particular to a one-active-one-standby water treatment control system alternating use control method which comprises a first water treatment device for softening hard water and a second water treatment device for softening hard water and alternating with the first water treatment device. The first water treatment device and the second water treatment device of the application alternately produce water, form uninterrupted supply of softened water, one water treatment device produces water, and the other water treatment device is standby, can continuously supply softened water to a water area, and cannot appear the phenomenon that the water production is stopped during regeneration, is automatically controlled, and is convenient to use.

The invention discloses a gas field wastewater treatment process, belongs to the technical field of wastewater treatment, and solves the technical problems of poor treatment effect and high cost of fracturing flowback fluid in the prior art. The treatment process comprises regulating homogenization, flotation reaction, advanced oxidation, biochemical treatment, boron removal treatment and membrane treatment. The flotation reaction comprises adding 10-300 ppm of an organic breaker, 50-1100 ppm of a hard water softener, 1-200 ppm of a heavy metal scavenger, 1‰-2‰ of a flocculant, and 10-100 ppm of a coagulant aid to the wastewater, and pneumatically stirring the wastewater to obtain a supernatant. The advanced oxidation comprises performing ozone oxidation, iron-carbon micro-electrolysis and electrocatalytic oxidation on the supernatant obtained by the flotation reaction. The biochemical treatment comprises performing anaerobic denitrification and aerobic treatment on the wastewater after the advanced oxidation. The invention has the advantages of low dosage of reagents, simple and stable process, high treatment efficiency and no secondary pollution.

The utility model discloses integrated industrial circulating water ion removal equipment which comprises a shell, a first water inlet and a first water outlet are formed in the position, close to the bottom, of the end face of one side in the length extension direction of the shell, the first water inlet is connected with a water inlet pipe, and the water inlet pipe extends upwards in the shell and is connected with one end of a sterilization and algae removal groove; a second water outlet is formed in the other end of the sterilization and algae removal tank and connected with a water outlet pipe, a third water outlet of the water outlet pipe is formed in the position, close to the bottom, of one side of the adsorption cavity in the length direction, and a plurality of adsorption devices which are evenly distributed and can adsorb calcium and magnesium ions in water are arranged in the length direction of the adsorption cavity. An overflow port of an overflow pipe is formed in the other side of the adsorption cavity; the overflow pipe is connected with the first water outlet. By adopting the design scheme and the highly integrated design, the sterilization, algae removal and calcium and magnesium ion adsorption of the industrial hard water are simultaneously realized through one device, so that the industrial hard water is converted into soft water, and the soft water can be recycled.

The utility model discloses a portable polygonatum kingianum atomization spraying device which comprises a water tank providing water pressure and a power source and an atomization device connected with the water tank. The atomization device comprises a vortex fan, an extension air pipe arranged on an air outlet of the vortex fan, a spraying mechanism arranged at the other end of the extension air pipe, a control switch arranged on the vortex fan and a hard water pipe connected with the control switch and the spraying mechanism. The water pump and the spraying mechanism are used for atomizing liquid medicine, and the vortex fan generates airflow to spray water mist to the distance and the high position.

The utility model discloses a composite water softening treater which comprises a tank body, the lower end of the tank body is of an opening structure, a resin tank is installed in the tank body, the upper end of the resin tank is of an opening structure, a filter screen is arranged at the lower end in the resin tank, and the space between the upper surface of the filter screen and the inner arc face of the resin tank is sequentially filled with adsorption resin, cation exchange resin and anion exchange resin from bottom to top. A spiral flow deflector is arranged on the inner arc surface of the resin tank, a threaded ring is arranged at the lower end of the resin tank and is in threaded connection with the lower end of the tank body, the upper surface of the spiral flow deflector gradually inclines downwards from the middle to the outer edge, and a conical ring is arranged at the upper end of the tank body and is a hollow ring. The hard water is guided to be in uniform contact with the composite resin, the utilization efficiency of the composite resin is improved, the hard water is softened more comprehensively through the composite resin, and the water softening treatment effect is improved.

The invention belongs to the technical field of oil for hydraulic supports, and particularly relates to biodegradable emulsified oil for a hydraulic support and a preparation method of the biodegradable emulsified oil. The biodegradable emulsified oil for the hydraulic support is prepared from the following raw materials in parts by mass: 40 to 50 parts of modified castor oil, 2 to 6 parts of eutectic solvent, 2 to 5 parts of emulsifier, 3 to 8 parts of antirust agent, 0.5 to 1.5 parts of defoaming agent and 15 to 30 parts of water, the biodegradable emulsified oil for the hydraulic support, provided by the invention, has good compatibility with 40-grade artificial hard water, and also has excellent anti-rust property and corrosion resistance.

The invention discloses a water softener, which comprises a water softening valve, which comprises a valve body with a valve cavity, the valve body is provided with a soft tank interface, and the soft tank interface is internally provided with a side wall channel and a central channel which are both communicated with the valve cavity; the soft water tank is mounted on the outer side of the soft tank connector; the first water distributor is mounted on the inner side of the soft tank connector; the first end of the central pipe is communicated with the central channel, and the second end of the central pipe penetrates through the first water distributor so as to extend into the water softening tank; the second water distributor is arranged at the second end of the central pipe; the water softening tank, the first water distributor, the central pipe and the second water distributor define a water softening cavity, the water softening cavity is filled with a water softening medium, and the side wall channel is communicated with the water softening cavity through the first water distributor. According to the technical scheme, the assembly efficiency of the water softener can be improved, and the installation sealing performance of the first water distributor is relatively reliable, so that the risk that a softening medium escapes or hard water flows in is reduced.

The invention discloses flocculation softening hard water treatment equipment based on crystallization granulation and solid-liquid separation, and relates to the technical field of hard water softening, the flocculation softening hard water treatment equipment comprises a hard water treatment fluidized bed body, the lower side of the hard water treatment fluidized bed body is fixedly provided with a mounting base, one side of the mounting base is provided with a Venturi feeding pipe, and the other side of the mounting base is provided with a water inlet pipe; a second-stage mixing cavity is formed in the mounting base, a hollow rotating shaft is movably mounted in the second-stage mixing cavity, stirring fan blades are fixedly mounted on the lower side of the hollow rotating shaft in an array manner, and a sacrificial sleeve is movably mounted on one side of the second-stage mixing cavity. On the basis that the stirring fan blades are driven by water flow, the cleaning function of the sacrificial sleeve is achieved through the cleaning mechanism, the adverse effect caused by crystallization and scaling at the end of the Venturi feeding pipe is greatly reduced, the stability of the equipment in the using process is improved, and the service life of the equipment is prolonged. And the medicament and the water flow can be secondarily mixed in the secondary mixing cavity through the rotating stirring fan blades.

The invention discloses a water softening valve and a water softening machine, and relates to the technical field of water softening machines, a valve body of the water softening valve is provided with a valve cavity and a salt suction channel, a grating assembly is arranged in the valve cavity, and the outer periphery of the grating assembly abuts against the inner peripheral face of the valve cavity so that the valve cavity can be divided into a plurality of water passing cavities in the axial direction of the valve cavity; the plurality of water passing cavities comprise a water inlet cavity, a side wall cavity, a pollution discharge cavity, a central cavity and a water injection and salt absorption cavity; the piston is inserted into the inner periphery of the grating assembly and moves in the axial direction of the valve cavity; the soft water valve has a regeneration mode and a flushing mode, and in the regeneration mode, the piston is located at the regeneration position, so that saline water in the salt box is guided into the soft water tank through the water injection salt suction cavity and the salt suction channel, and regenerated waste water is discharged through the sewage discharge cavity; in the flushing mode, the piston is located at the flushing position so that hard water in the water inlet cavity or the water outlet cavity can be guided into the soft water tank to be flushed, and sewage generated after flushing is discharged out of the sewage discharging cavity. According to the technical scheme, the reasonability of the waterway mode of the soft water valve can be improved, and the performance of the water softener is improved.

To provide a liquid hand dishwashing detergent composition which, while providing good foaming properties, viscosity, and stability, still has high biodegradability and a high concentration of renewable components.SOLUTION: The need for a liquid hand dishwashing composition which, while including a surfactant derived from a more renewable supply source, still provides good performance, in particular foam longevity in the presence of oily and fatty particulate soils and hard water, as well as oily and fatty soil removal, is met by formulating the liquid hand dishwashing composition with an alkylalkanolamide sulfate anionic surfactant in combination with an alkyl sulfate anionic surfactant.SELECTED DRAWING: None

The utility model relates to the technical field of softened water treatment, disclose a kind of softened water treatment device for induced crystallization granulation, the side end of water inlet pipe is fixedly connected with filter box, the bottom of filter box is fixedly connected with extension box, the inside of filter box is equipped with the filter assembly for filtering hard water impurities, the inside between the inside of filter box to extension box is equipped with water retaining component, the outside top of filter box is equipped with two groups of limiting component for limiting filter assembly and water retaining component, the utility model is provided with limiting component, filter assembly and water retaining component, hard water first after flowing to filter screen after passing through pass, to realize the filtration of impurities in hard water, it is convenient to filter and treat hard water, avoid the situation that the accumulation and deposition of impurities in water appear in the softened water operation, avoid the situation that impurities block pipeline appear in the conveying process of water flow, to avoid the normal progress of hard water softening operation.

The invention discloses an emulsifier composition with a low HLB (Hydrophile-Lipophile Balance) value suitable for various water qualities and application of the emulsifier composition, and belongs to the technical field of fine chemical engineering or the field of agriculture. The low-HLB-value emulsifier composition suitable for various water qualities consists of the following components in parts by weight: 50-90 parts of secondary alcohol polyoxyethylene ether; 20 to 50 parts by weight of pesticide emulsifier No. 500; 1-10 parts by weight of sulfonated sodium dioctyl succinate; and 20-40 parts by weight of fatty acid ester. The secondary alcohol polyoxyethylene ether is prepared from synthetic alcohol, and has the characteristics of low temperature resistance, no gel, less foam and low odor. After the emulsifier with extremely low HLB (Hydrophile-Lipophile Balance) value and adapting to various water qualities is mixed with oil ester with low HLB value, such as mineral oil and jojoba oil, the appearance is uniform, transparent and stable; when the oil agent is used in deionized water, standard hard water and three times hard water, the oil agent is uniformly dispersed in various kinds of water, and no floating oil appears on the surface.

The application discloses a water softener, comprising: a water softener valve, comprising a valve body with a valve cavity, the valve body is provided with a soft tank interface, the soft tank interface is provided with a side wall channel and a center channel which are both communicated with the valve cavity; a soft water tank which is installed outside the soft tank interface; a first water distributor which is installed inside the soft tank interface; a center pipe, the first end of which is communicated with the center channel, the second end of which is provided through the first water distributor to extend into the soft water tank; and a second water distributor which is provided at the second end of the center pipe; the soft water tank, the first water distributor, the center pipe and the second water distributor enclose a soft water cavity, the soft water cavity is filled with soft water medium, and the side wall channel is communicated with the soft water cavity through the first water distributor. The technical scheme of the application can improve the assembly efficiency of the water softener, and make the installation sealing of the first water distributor relatively reliable, so as to reduce the risk of escape of softening medium or intrusion of hard water.

The present invention relates to the technical field of buckets, and in particular to an excavation bucket for construction and a method thereof, comprising a bucket mechanism, comprising a shovel body, the bottom of the front side of the shovel body being fixedly connected with shovel teeth, the bottoms on both sides of the front side of the shovel body being fixedly connected with side teeth, and the top of the shovel body being fixedly connected with ear plates; a dust removal mechanism, comprising a transfer box, two of which are provided, the inner sides of the transfer boxes being fixedly connected with the tops on both sides of the shovel body, the transfer boxes being connected with an external water pump, the outer side of the top of the transfer box being connected with a water outlet pipe, the bottom inside the water outlet pipe being fixedly connected with a three-hole plate, the top of the three-hole plate being movably connected with a two-hole plate, the bucket mechanism is controlled by using an excavator to excavate and shovel out the soil, the dust removal mechanism is activated during excavation to spray water mist for dust removal, and the descaling mechanism can be used to remove dust from water in hard water areas.

A process for softening hard water comprising the steps of: a) contacting hard water with a thermally regenerable ion exchange resin pre- saturated with ammonium and bicarbonate ions so as to replace 'hard' ions in the feedwater with NH4 + and HCO3 - ions; b) heating the ammonium bicarbonate (AB) solution produced to decompose the AB, producing a soft product water of low salinity; c) collecting the emitted ammonia and carbon dioxide gases by bubbling through cool water to re-form the concentrated AB regenerant solution; and d) passing the concentrated ammonium bicarbonate solution through the hardwater exhausted resin, at elevated temperatures (up to 80°C) to partially decompose the AB and generate controlled partial pressures of NH3 and CO2 (up to 10 atm, in a sealed column) to drive the resin regeneration process. e) repeating steps a) to d).

The invention discloses a membrane-free electrochemical water treatment device and method based on scaling induction and equal-flux seepage, and belongs to the technical field of water treatment. The device comprises a reaction tank, an equal-flux porous seepage anode, a T-shaped array cathode, a plurality of water inlets, a plurality of water outlets and a power supply. The T-shaped array cathode induces scaling to form a porous isolation layer, the equal-flux seepage design of the anode is combined, efficient acid-base separation under the membrane-free condition is achieved, the problems of bottom acid liquid retention and backmixing are fundamentally solved, and the device has the advantages of being low in energy consumption, simple in structure, easy to maintain, low in cost and the like, and has wide application prospects. The softening agent is suitable for softening industrial hard water such as circulating cooling water.

The invention discloses a preparation method of a long-acting corrosion-resistant extreme pressure cutting fluid, and relates to the technical field of metal working fluids. According to the method, mineral oil is used as base oil and matched with fatty acid, boric acid ester and sulfonate to form a synergistic extreme pressure system, an aluminum product corrosion inhibitor and a polyol ester antirust agent are combined to form a dual-corrosion-resistant system, and functional auxiliaries such as a biological stabilizer and an anti-foaming agent are used as auxiliary agents. The preparation method comprises the steps of pretreatment, extreme pressure component compounding, anti-corrosion system adding, functional additive blending, emulsifying and curing, post-treatment and other optimization processes. Through collaborative design of components and optimization of technological parameters, the defects that existing domestic cutting fluid is short in anti-corrosion aging, insufficient in extreme pressure lubrication, weak in hard water resistance and the like are overcome, the product can form long-acting protection on sensitive metal, is suitable for counter weight load processing, is high in hard water resistance, is biologically stable, is environment-friendly and safe, and has a wide application prospect. And the high-end machining requirements in the fields of military industry, aerospace and the like are met, and practical value and popularization significance are achieved.

The present application relates to the field of microorganisms, and in particular to a strain of Vibrio gigas for removing calcium ions in high-salt hard water and its application. The strain is named Vibrio gigas DZWSW, and was preserved in the China General Microbiological Culture Collection Center on December 20, 2021, with the preservation number of CGMCC No. 24153. The Vibrio gigas DZWSW provided in the present application plays an important role in precipitating calcium ions in high-salt hard water, and has a broad application prospect in hard water softening. After the Vibrio gigas DZWSW provided in the present application precipitates calcium ions in high-salt hard water, carbonate mineral precipitates are formed, including calcite, single-water calcite and dolomite minerals; the formed mineral precipitates can be used in the field of building materials, and have a broad application prospect.