23 results about "Hard water" patented technology

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 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 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 application discloses a PTA biochemical discharge water recycling hardness removal process improvement method. The method replaces the traditional double-alkali hardness removal method with a weak-acid sodium bed process, can easily reduce the calcium and magnesium hardness to below 5 mg / L, and can directly serve as the water inlet of subsequent reverse osmosis without adding a scale inhibitor. In the application, the sodium bed process is introduced into the hardness removal process of water recycling, and a weak-acid cation exchange resin is used as an exchange carrier, so that the ion exchange capacity is greatly improved, the calcium and magnesium ions can be easily removed without adding additional alkali or sodium carbonate. Meanwhile, on one hand, the high flow rate of the cation exchange tank body is utilized to improve the treatment capacity and reduce the land occupation area; on the other hand, the weak-acid cation has high selectivity to hydrogen ions, the resin regeneration is complete, and the produced water quality is stable. The hardness-removed water obtained by the process can directly enter the reverse osmosis membrane filtration, no scale inhibitor needs to be added, and the recycling rate of PTA wastewater is greatly improved.

A collector for reverse flotation, and a preparation method therefor and the use thereof. The collector for reverse flotation has a chemical structural formula as shown below: R1-NH-R2-NH2, wherein in the formula, R1 and / or R2 comprise(s) at least one of the following functional groups: a -CN3H4 functional group and a -SO3H functional group. The method comprises: S1, providing a diamine compound; and S2, introducing a -CN3 4 functional group and / or a -SO3H functional group into the diamine compound, so as to obtain a collector for reverse flotation. A diamine group and -CN3H4 in the collector for reverse flotation can enhance the interaction with a hydroxyl group, silicon, oxygen and other groups on the surface of an aluminosilicate mineral, thereby improving the selectivity of the collector for reverse flotation; -SO3H can reduce the interaction with metal ions in hard water, thereby improving the hard water resistance and enhancing the adaptability of the collector to hard water; moreover, a hydrocarbyl non-polar macromolecular chain in R1 and / or R2 enhances the hydrophobicity of the surface of mineral particles after the action of the collector, and therefore the collector for reverse flotation has an improved collecting capacity, and also has selectivity for and adaptability to minerals.

This invention relates to a paraquat granule and its preparation method, belonging to the field of pesticide technology. The granule consists of paraquat salt, a layered double hydroxide carrier, a disintegrant, microcrystalline cellulose, an outer coating of an emetic / odorant / tracking agent, and the remainder being water-soluble filler. The granule wear rate is ≤2%, it completely disintegrates within 60 seconds in standard hard water at 25℃, and the suspension rate is ≥90%. Preparation employs a one-step process of screw extrusion-centrifugal granulation-vacuum belt drying or fluidized bed granulation, resulting in high content retention. The product is dust-free and non-caking, suitable for drone-based aerial spraying and long-distance sea transport, facilitating large-scale application in overseas registered areas.

This invention relates to the field of metal recycling technology and discloses a method for recycling titanium scrap, comprising: a mechanical pretreatment stage for crushing and primary magnetic separation of titanium scrap; a cleaning and rinsing stage employing a four-step cleaning process combining ultrasonic waves and spraying with a synergistic chelating agent-biosurfactant-buffer system; water softening pretreatment for hard water environments using a sacrificial-functional double-layer chelating system and a ternary buffer system; a dehydration and drying stage for removing moisture; and a sorting and purification stage using multi-stage magnetic separation and various physical sorting methods to obtain high-purity titanium scrap products. This invention achieves the simultaneous execution of three functions: chelating agent complexation of metal ions, surfactant emulsification of oil contamination, and buffer stabilization of the reaction environment. The cleaning efficiency is 3-5 times higher than that of a single cleaning method, solving the problems of competitive consumption of chelating agents and poor cleaning process stability in hard water environments, thus realizing high-quality recycling of titanium scrap.

The utility model belongs to a kind of test device of water-soluble fertilizer hard water resistance convenient for observation;Including: a plurality of transparent cylinder convenient for observing water-soluble fertilizer state, the top opening of transparent cylinder is equipped with detachable cylinder cover unit, and transparent cylinder and detachable cylinder cover unit are one-to-one corresponding arrangement;The bottom opening of a plurality of transparent cylinders is connected with detachable base unit respectively;With the characteristics of convenient assembly, cleaning and carrying, especially the advantages of cleaning thoroughly to ensure the accuracy of subsequent observation results.

This invention discloses a water softener status management method, device, storage medium, and water softener, mainly comprising: using a salt level detection module to detect the current salt level in the salt tank of the water softener, and determining the salt quantity status based on the detected salt level value; using a regenerated liquid concentration detection module to detect the current concentration of the regenerated liquid, and determining the salt quantity status based on the detected concentration value; when the salt quantity status detected by the salt level detection module and the salt quantity status detected by the concentration detection module are inconsistent, determining the faulty module from among the salt level detection module, the regenerated liquid concentration detection module, and the regenerated liquid supply component based on the current actual salt quantity status of the water softener; and prompting the user to check the faulty module to determine the fault point. This invention can ensure that the water softener will not experience salt shortage due to inaccurate salt quantity status detection, thereby avoiding the use of hard water by the user.

This invention discloses a membrane electrochemical softening system and method based on a nickel-chromium-iron-based electrode. The softening system includes an electrochemically enhanced crystallization unit, a nickel-chromium-iron-based electrode membrane electrolysis reactor, and a solid-liquid separation unit. The softening process includes the following steps: high-hardness water is mixed with the cathode effluent of the membrane electrolysis reactor, and after controlling the pH to be >9.8, it enters the electrochemically enhanced crystallization unit for accelerated crystallization; the resulting scale-containing softened water is treated by a primary solid-liquid separation module to obtain alkaline softened water; then it is refluxed back into the membrane electrolysis reactor for electrolysis, controlling the pH of the cathode effluent to be 10.5-13 and the pH of the anode effluent to be >5.5; the cathode effluent is returned and mixed with high-hardness water to enter the electrochemically enhanced crystallization unit, while the anode effluent enters the electrochemical de-yellowing module, and after electrolysis, it enters the secondary solid-liquid separation module for solid-liquid separation to complete the softening process. This invention can reduce energy consumption and operating costs, and improve controllability and operational stability.

The present invention consists of a process for removing impurities from hard water. Using chemical agents, it removes impurities by mixing a chemical preparation and employing decantation in the first stage of impurity removal. Subsequent validation of the results allows for the removal of other types of impurities present in the water, such as arsenic, cadmium, cyanide, copper, chromium, mercury, nickel, lead, and zinc. Finally, it removes contaminants and microorganisms from the following group: fats and oils, suspended solids, organic carbon, total nitrogen, total phosphorus, worm eggs, E. coli, and fecal enterococci. The resulting sediments are used as biofertilizers, and the treated water can be discharged into conventional municipal sewer systems or, if necessary, treated with ozone (O3) for human consumption.

The present application relates to the technical field of textile dyes, and discloses a reactive dye with high color fastness, a preparation method, a dyeing process and application thereof. The dye takes azo dyes containing ethylene sulfone sulfate reactive groups as the main body, and comprises a composite dispersion stabilizer composed of a comb-shaped polycarboxylate dispersant, an organic polyphosphonic acid chelating agent and a fatty alcohol polyoxyethylene ether wetting agent. The components are mixed, stirred and spray dried, and then the dyeing is carried out under specific hard water conditions, followed by fixation, dyeing, color setting and post-treatment. The wetting agent ensures rapid wetting of the dye, the chelating agent effectively eliminates the interference of metal ions in hard water, and the dispersant provides persistent steric hindrance stability. The synergistic effect of the components improves the solubility and stability of the dye in hard water, reduces the flocculation rate, reduces the generation of color spots and color stains on the surface of the dyed fabric, improves the dyeing uniformity, and obtains better product quality.

The present application belongs to the technical field of metal processing fluid, and discloses a production method of an environmentally-friendly long-acting clean line cutting fluid. The method uses waste edible oil as raw material, and after pretreatment, branched fatty acids are prepared through a deoxygenation-cracking-isomerization coupling reaction and a carbonylation step, and then high-stability bio-ester base oil is generated by directional esterification of the branched fatty acids with neopentyl polyol without beta-hydrogen; intelligent slow-release antioxidant microcapsules, compounded surfactants and functional additives are compounded to form a water-based microemulsion. Through molecular structure reconstruction, intelligent material integration and green process coupling, the present application solves the industry pain points of poor long-term stability, insufficient cleaning performance and high environmental risk of plant oil-based cutting fluid, and the obtained cutting fluid has excellent oxidation stability, strong hard water resistance, good cleaning performance, long-term stable pH, high biodegradation rate, can be continuously used for 180 days without replacement, and has environmental friendliness and high performance.

The application discloses a foaming fire extinguishing agent for coal mine operation and a preparation method thereof. The preparation method comprises the following steps: after xanthan gum is subjected to dry heat treatment and superfine crushing, the xanthan gum is premixed with butanediol to obtain a dispersion slurry; the dispersion slurry is added into water and subjected to high-speed shearing dispersion to obtain a thickening base liquid; a suspending agent and hydrophilic fumed silica are sequentially added into water and dispersed, and then the thickening base liquid is mixed to obtain a composite thickening base liquid; and then, a composite surfactant, a liquid film structure enhancer, an anti-freezing agent and water are added into the composite thickening base liquid, and stirring and uniform mixing are conducted, and then water is added to obtain the foaming fire extinguishing agent. In the preparation process, the temperature is controlled to be not more than 40 DEG C. The foaming fire extinguishing agent has excellent foaming property, foam stability, hard water resistance and fire extinguishing performance, and is particularly suitable for the underground high-hardness water quality and the channel environment with fast air flow speed of a coal mine.

This invention discloses an in-situ depolymerization modification composition of mineral-derived humic acid, its method, and its applications. The composition comprises a hydrogen bond acceptor and an acidic hydrogen bond donor, wherein the hydrogen bond acceptor is selected from one or more of choline compounds, betaine compounds, and quaternary ammonium salt compounds; and the acidic hydrogen bond donor is an aliphatic polycarboxylic acid or a hydroxycarboxylic acid. This method is simple, green, and efficient, yielding a product with low molecular weight, good water solubility, and strong resistance to hard water. It is suitable for various product forms such as solid fertilizers, liquid fertigation fertilizers, and soil conditioners, and has broad application prospects in modern agriculture and ecological restoration.

The utility model discloses a kind of water treatment equipment for boiler, it relates to boiler technical field, and its technical scheme main point is: processing box, the left side of the processing box is fixedly connected with waste liquid tank, the inner wall of waste liquid tank is communicated with the front and back two sides of the processing box, the bottom of the processing box is fixedly connected with water inlet seat, the inside upper portion of water inlet seat is fixedly connected with filter cartridge, the top of the processing box is fixedly connected with drain seat, the inside of waste liquid tank is equipped with dialysis mechanism, the inside of water inlet seat is equipped with self-cleaning mechanism, effect is to realize the dialysis softening of hard water and the self-cleaning of filter cartridge, improve the efficiency and convenience of device.

The present application relates to the technical field of object drying, in particular to an electric heat blowing drying device, which comprises a shell and an inner container, the inside of the inner container is provided with a flow guide plate, a fan blade and a heating pipe, further comprising an air adjusting assembly arranged in front of the fan blade and a separation piece arranged at the bottom of the inner container; the air adjusting assembly is rotationally arranged on the side wall of the flow guide plate, the air adjusting assembly has a first air outlet for drying objects and a second air outlet for increasing the gas flow rate, the first air outlet and the second air outlet are moved to the front of the fan blade by rotation; the present application adjusts the air pressure and the air flow rate by arranging two air outlets, before drying, the high flow rate gas generated by the second air outlet blows off the hard water on the surface of the objects, and the separated hard water is isolated by the liquid collecting cavity. During the drying process, the hard water on the surface of the objects is reduced, thereby reducing the generation of scale and reducing the area that needs to be wiped.

The utility model discloses a kind of anti-blocking softener for cigarette factory, comprising: box, drain pipe, filter plate, installation component and spraying component;Filter plate and spraying component are all arranged in the inside of box, and spraying component is located above filter plate;The bottom of box is provided with water outlet pipe, and water outlet pipe is connected with drain pipe;Installation component includes connector, plug-in rod, fixed block and sliding block, plug-in rod is respectively arranged on the first end of connector and drain pipe, fixed block is respectively arranged on water outlet pipe and the second end of connector, fixed block is provided with installation groove and through hole, and installation groove and through hole are communicated, sliding block is slidably arranged in installation groove, plug-in rod is inserted into through hole, and abuts with sliding block. The utility model can conveniently clean the connector, so that the impurities and limescale in the connector can be cleaned, and the phenomenon of blockage does not occur. And by spraying component, the recovery ion exchange capacity of ion exchange resin is improved, so that the hard water treatment effect is better.

This invention discloses an environmentally friendly metal cutting fluid and its preparation method. The cutting fluid is composed of neodecanoic acid, organic alcohol amines, ethylene oxide-propylene oxide block polyether, nonionic surfactants, and corrosion inhibitors in a specific ratio, prepared through staged temperature-controlled neutralization and step-by-step mixing. This invention is free of toxic and restricted substances such as chlorine, phosphorus, nitrite, and boric acid. It exhibits good biodegradability, excellent lubrication, rust prevention, and hard water stability, has a long service life, and is suitable for various metal cutting processes. It solves the problems of high pollution, easy spoilage, and uneven performance of traditional cutting fluids. The process is simple and suitable for industrial production.