192 results about "Mineral matter" patented technology

The invention relates to the technical field of coal bed gas development and gas extraction, in particular to an electrodialysis-liquid CO2 time sequence synergistic anti-reflection method and system. Comprising an electrodialysis pretreatment stage, a CO2 synergetic permeability increasing stage and a process regulation and energy recovery stage, a mixed solution is injected into a coal seam in a pulse injection mode, and energy recovery is conducted through pipeline fluid pressure in the injection stopping period. According to the technical scheme, through multi-stage cooperation of electrodialysis pretreatment, CO2 phase change fracturing and pulse consolidation and regulation, accurate transformation of the coal seam low-permeability area is achieved. According to the scheme, electrodialysis is utilized to drive an acidic working solution to target and migrate to a difficult-to-permeate area, mineral substances are dissolved, and pores are expanded; then, high-energy expansion stress is generated through liquid CO2 phase change, and a through fracture network is formed; and finally, a pulse injection and energy recovery mechanism is adopted, fracture closing is restrained, system energy consumption is reduced, and therefore the coal seam breathability and the gas extraction efficiency are integrally improved.

The invention provides a comprehensive evaluation method for dissemination characteristics of minerals in coal of different particle sizes, and relates to the field of coal quality analysis. The method comprises the following steps: collecting coal analysis samples of different size fractions, and preparing coal polished sections of all the size fractions; the method comprises the following steps: collecting microscopic images, and constructing a representative microscopic image sample database of each size fraction; carrying out size fraction judgment, generating a component segmentation image on a single particle and a component segmentation image on a microscopic image, and extracting dissemination characteristic parameters of mineral substances in coal of each size fraction; key parameters are screened out, and comprehensive evaluation is carried out on the dissemination characteristics of the minerals in the coal of different size fractions. According to the method, an image processing technology and multivariate statistical analysis are combined, and qualitative and quantitative analysis of the dissemination characteristics of the minerals in the coal is achieved. Compared with an existing microscopic image analysis method, the method has the advantages that the human subjective influence and the labor intensity are remarkably reduced, and the analysis result has higher objectivity and reproducibility.

The invention discloses a self-repairing synchronous grouting material and a preparation method thereof, and belongs to the technical field of grouting materials. The self-repairing synchronous grouting material comprises a cement base material, a microbial capsule and chitosan calcium salt, the concrete comprises the following raw materials in parts by mass: 7-12 parts of Portland cement, 20-28 parts of fly ash, 40-55 parts of quartz sand, 20-30 parts of water, 2-7 parts of bentonite, 1-5 parts of microbial capsules and 1-5 parts of chitosan calcium salt. The self-repairing synchronous grouting material disclosed by the invention is combined with a microorganism self-repairing technology, and mineral substances such as calcium carbonate and the like can be generated through metabolic activity of microorganisms when the material has cracks, so that the cracks are automatically filled, and expansion of the cracks on the surface of a concrete material can be effectively prevented; the grouting material can continuously repair microcracks caused by environmental changes or construction stress in the long-term use process, and the integrity and stability of the structure are kept.

The invention relates to the technical field of oil and gas well wall stability and fracturing yield increase development, in particular to a deep high-temperature rock statistical damage constitutive model construction method which comprises the following steps: performing mineral component and microstructure analysis on a deep rock core by adopting XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscope) technologies, and performing quantitative statistics on mineral content to obtain a deep high-temperature rock statistical damage constitutive model. The method comprises the following steps: acquiring rock brittleness and plasticity characteristic basic data, performing a triaxial compression test by adopting a high-temperature triaxial compressor, and establishing a constitutive model capable of reflecting deep high-temperature rock damage; according to the mechanical characteristics of the deteriorated rock due to temperature rise, the provided model is verified to accurately simulate stress-strain curves of a sample in each stage of a single axis and a conventional three axis under different temperatures and confining pressures, the rationality of indexes is verified, and the deep high-temperature rock statistical damage constitutive model is obtained. The method solves the problem that in the prior art, a statistical damage constitutive model capable of accurately reflecting stress-strain characteristics of the deep high-temperature rock at each stage of a single axis and a conventional three axis under different temperatures and confining pressures is lacked.

The utility model provides a filter equipment and mineralization equipment of mineral spring, filter equipment includes shell and sets up first filter core subassembly in the shell, is equipped with mineralization cavity, first adjusting cavity and second adjusting cavity in first filter core subassembly, is equipped with mineralization filter core in mineralization cavity, first adjusting cavity sets up in the upstream of mineralization cavity, second adjusting cavity sets up in the downstream of mineralization cavity, is equipped with first one -way conducting structure between first adjusting cavity and mineralization cavity, is equipped with second one -way conducting structure between second adjusting cavity and mineralization cavity, first one -way conducting structure and second one -way conducting structure are used for under the opening of one -way water pressure to open to the mineralization cavity and the corresponding adjusting cavity. The opening and closing of two one -way conducting structures depend on water flow pressure, and the operator can flexibly adjust the flow and residence time of water body in mineralization cavity, and the water body with high mineral content in mineralization cavity and the water body with low mineral content in first adjusting cavity and second adjusting cavity are mixed with each other, thereby obtaining the water body with moderate mineral content.

The invention relates to the technical field of preparation of drinking water capable of adjusting mineral content, and discloses a preparation method, device and equipment of drinking water capable of adjusting mineral content, the method comprises the following steps: obtaining target mineral content of a first waterway in real time, taking the target mineral content as a core input parameter, and combining with preset mineral content set by a user to obtain a target mineral content; the opening degree of the two independent valves is calculated and controlled in a linkage mode, so that the mineral content of the discharged water is the preset mineral content. The method has the beneficial effects that closed-loop accurate control on the mixing proportion is realized, upstream fluctuation caused by water quality change of raw water or performance degradation of a filter element can be automatically compensated, the mineral content of final effluent can stably reach a user preset value no matter how the water inlet condition changes, and meanwhile, the water quality of the water outlet can be effectively improved by independently controlling the two water paths respectively. The system can respond to the adjusting instruction more flexibly and quickly, and the intelligent level of water treatment equipment and the reliability of personalized drinking experience are remarkably improved.

The utility model relates to a cooking device. The cooking equipment comprises an inner container and a humidifying assembly. The inner container is provided with a cooking cavity; the humidifying assembly comprises an atomizing nozzle, the atomizing nozzle is connected to the inner container, and the atomizing nozzle is arranged towards the interior of the cooking cavity and sprays water mist. According to the cooking equipment provided in the scheme, the atomizing nozzle connected to the inner container is arranged, the water mist is sprayed towards the interior of the cooking cavity through the atomizing nozzle, and the characteristic that the water mist can become water vapor more quickly compared with water flow is utilized, so that a better humidifying and baking effect is achieved; the characteristic that water mist is composed of fine liquid drops and has a large surface area is utilized, the characteristics that the water mist flows at a high speed and is large in surface tension and not prone to adhesion are combined, the water mist is rapidly evaporated into water vapor, the concentration of mineral substances in the water is reduced, the mineral substances dissolved in the water are prevented from being deposited and crystallized on the surface of the inner container, and the service life of the inner container is prolonged. Therefore, the problem that scale is easy to form during humidifying and baking is prevented.

The invention provides a filter element device and method for controlling mineral substance concentration through an electric field, and is characterized in that the filter element device comprises a shell, a filter assembly, electrode assemblies and a mineralization assembly, the mineralization assembly is arranged in the filter assembly, the electrode assemblies are arranged inside and outside the mineralization assembly, and the filter assembly comprises an upper end cover, a carbon rod and a lower end cover; the upper end cover is connected with the upper end face of the carbon rod and the mineralization assembly, and the lower end face of the carbon rod and the mineralization assembly are connected with the lower end cover; through the design that the directions of the water path and the double electric fields are parallel in the device, the release rate and diffusion efficiency of the mineral substances are further improved, the dissolution efficiency of the mineral substances is regulated and controlled through the voltage, and the effect of accurately regulating the concentration of the mineral substances under different water outlet flows is achieved; and real-time, automatic and flexible regulation and control of the mineral content based on user requirements are realized.

Disclosed herein are methods and systems for determining downhole formation lithology after calculating the mineralogy of the formation based on acquired elemental data in a specific order. More specifically, the elemental data may be acquired using a downhole geological tool. The elemental data are then used to calculate the formation minerals, which, in combination, are then used to determine the formation lithology classifications.

The application provides a thermal infrared hyperspectral characteristic wave band selection method based on an improved particle swarm algorithm, and comprises the following steps: step 1, preparing a mixed salt ore sample, collecting a hyperspectral emissivity spectrum of the mixed salt ore sample, measuring the mass content percentage of each mixed salt mineral in the mixed salt ore sample as a data set for selecting a characteristic wave band and predicting a content; step 2, taking the data set in step 1 as input, and establishing a prediction model of a characteristic wave band combination of each substance in the mixed salt ore and corresponding content prediction based on the improved particle swarm algorithm; step 3, based on the prediction model in step 2, predicting the characteristic wave band combination of each substance in the unknown mixed salt ore and the corresponding content, collecting the content percentage of the mixed salt ore and verifying the result. The improved particle swarm algorithm does not need to artificially adjust the parameters of the algorithm, and the obtained wave band combination prediction result is stable.

A method of treating a portion of a subterranean formation can include introducing a treatment fluid into the portion of the subterranean formation. The treatment fluid can be a drilling fluid, a spacer fluid, a cement composition, or a stimulation fluid. The treatment fluid can include a base fluid; and a lost-circulation material (LCM), wherein the LCM comprises a plurality of particles of inorganic components of roofing materials, wherein the plurality of particles has a particle size distribution (PSD), and wherein the d99 particle size is in a range of 25 to 35 times greater than the d10 particle size; and allowing the LCM to reduce loss of the base fluid into the subterranean formation. The particles of the LCM can include solid aggregates of a combination of different minerals. The PSD and concentration of the LCM can be selected to provide a targeted fluid loss control.

To provide a composition obtained by concentrating mineral components in hot spring water or mineral spring water.SOLUTION: A method for producing a mineral-containing composition, comprising the following steps (1) to (4), wherein warm water and / or mineral water springing out from the ground and having (A) pH3. 5 to pH10. 5 and (B) iron ions in an amount of 20mg / L or less is used as a starting material liquid: (1) The starting solution is mixed with acetic acid in an amount of 0.25 to 0. 1kg per 75kg of the starting solution. (2) Heating is performed before and / or after the mixing of acetic acid to set the temperature of the mixed solution to 50 to 85 °C. (3) Calcium carbonate calcined at 140 °C to 210 °C is mixed with 1. to 2. 5kg per 1kg acetate mixed in (1), and the mixture is allowed to stand at 40 °C or less for 12 hours or more to generate crystals and precipitates. (4) Solutions containing crystals and precipitates 0.05 to 0. 1kg of nitrates per 2kg are mixed, and crystals are collected. According to the present production method, a large amount of crystals can be generated quickly, and a composition in which minerals in hot spring water or mineral spring water are concentrated can be provided.SELECTED DRAWING: Figure 1

The invention discloses a preparation method of a slow-release metasilicic acid mineralization material, which comprises the following steps: adding ore powder into a dilute acid solution for hydrothermal reaction to obtain modified metasilicic acid ore powder; and mixing a cationic polymer, a metal oxide and the modified metasilicic acid mineral powder, and carrying out hydrothermal self-assembly reaction to obtain the self-assembly coated powder modified metasilicic acid mineralization material, and adding the self-assembled coated powder modified metasilicic acid mineralization material into a surface hydrophobic modifier, and carrying out surface hydrophobic modification reaction to obtain the slow-release metasilicic acid mineralization material. According to the invention, the problem that metasilicic acid is slowly dissolved from silicate ore at present is solved, the consumption of metasilicic acid in a soaking state is reduced, the service life of the material is prolonged, and meanwhile, the overhigh content of mineral elements in soaking water is avoided.

The invention discloses a method for extracting fine iron powder from iron-containing minerals by magnetic separation in the field of mineral processing, which comprises the following steps: firstly, coarsely crushing low-grade iron-containing raw ores, carrying out wet ball milling to obtain ore pulp, adding sodium hexametaphosphate and polysorbate 80, and stirring and dispersing; adjusting the pH value of the ore pulp to 5-6 by using diluted hydrochloric acid or sodium hydroxide, adding a quaternary composite modified material with a specific structure, and stirring to enable the material to be in full contact with the iron minerals; then the ore pulp is pumped into a high-gradient magnetic separator, and rough concentrate enriched with iron minerals is separated out under the specific gradient magnetic field intensity; and finally, stirring and desorbing at a constant temperature through a citric acid buffer solution at a certain temperature, magnetically separating to obtain high-grade fine iron powder, and washing and drying the desorbed modified material to be repeatedly used. According to the method, efficient selective extraction of iron in the low-grade iron-containing minerals is achieved through multi-stage structural design and process parameter optimization of the materials, the grade and the recovery rate of the fine iron powder are remarkably improved, and the modified materials can be recycled and are high in environmental friendliness.

The utility model belongs to the technical field of heating and ventilation drainage, concretely relates to a kind of anti-blocking heating and ventilation drainage structure, including drain pipe, processing cylinder and pipeline, processing cylinder is connected to the top of drain pipe, pipeline is connected to one side of processing cylinder, the inside of processing cylinder is provided with water treatment mechanism;Water treatment mechanism includes filter cylinder, electric telescopic rod, cleaning disc and blowdown valve, filter cylinder is installed in the inside of processing cylinder, filter cylinder is located at the center of processing cylinder and is located at the end of pipeline, electric telescopic rod is set up in the top of processing cylinder, the output end of electric telescopic rod is penetrated to the inside of processing cylinder, cleaning disc is fixedly connected to the output end of electric telescopic rod bottom portion.The utility model provides a kind of anti-blocking heating and ventilation drainage structure, can install water treatment structure at pipeline entrance, to remove mineral matter and impurity in water, ensure water flow, avoid water flow to block drain pipe, ensure the efficient operation of heating and ventilation system.

The invention discloses a mineralization kettle external circulation distribution pipeline which comprises a main air inlet pipeline connected with an air inlet of a pressure-bearing fan and a main air outlet pipeline connected with an air outlet of the pressure-bearing fan, first-stage balance branch pipes are connected to the lower portion of the main air inlet pipeline or the main air outlet pipeline, and second-stage balance branch pipes are connected to the two ends of each first-stage balance branch pipe. The two ends of the second-stage balance branch pipe are connected with third-stage balance branch pipes, and the third-stage balance branch pipes are connected to a carbon dioxide diffuser in the mineralization kettle. The carbon dioxide diffusers are arranged in the mineralization kettle, so that the pressure, the flow speed and the flow of carbon dioxide in the multiple carbon dioxide diffusers in the mineralization kettle are equal, and the carbon dioxide uniformly circulates on the surface of the mineral substance at a certain speed in a turbulent flow manner. By arranging the main pipeline, the balance branch pipe and the carbon dioxide diffuser, uniform circulating flow of carbon dioxide in the mineralization kettle is realized, and rapid mass transfer homogenization of mineralization reaction is realized.

Synergistic compositions for improving mineral bioaccessibility comprise lutein, casein phosphopeptide or 1,3-dioleoyl-2-palmitoylglycerol, preferably in combination with one or more of non-digestible oligosaccharides. The compositions can be used to prevent and / or treat mineral deficiency and associated conditions, preferably anaemia, said mineral comprises iron and / or calcium.

The utility model discloses a waterway system capable of adjusting mineral content and a water purifier, the waterway system comprises a normal temperature waterway, one end is used for connecting a tap water end, the other end is used for connecting a normal temperature water end, and a front filter element and a rear filter element are sequentially arranged on the normal temperature waterway along the water flow direction; one end of the mineral water path is connected to a pipeline between the front filter element and the rear filter element, the other end of the mineral water path is connected to the normal-temperature water path and close to the normal-temperature water end, and a water storage tank and a flow adjusting unit are installed on the mineral water path in the water flow direction. The part of water stored in the water storage tank through the mineral substance water path is not filtered by the rear filter element and is rich in mineral substances, the other part of water is purified at the normal-temperature water end, the mineral substance content of the purified water is extremely low, and the flow on the mineral substance water path can be adjusted through the flow adjusting unit. And mixing with the purified water on the normal-temperature water path at the normal-temperature water end to obtain the purified water with different mineral contents.

The invention relates to a desalted water circulation type saline-alkali soil improvement device which comprises a lower treatment box buried in soil and an upper treatment box placed on the ground surface, and a power cavity, a negative pressure cavity, a backflow cavity and a water storage cavity are sequentially arranged in the lower treatment box from top to bottom; according to the device disclosed by the invention, a pressure difference is formed between the backflow cavity and soil by virtue of the inspiration impeller, so that not only is the recovery of salt in the soil promoted, but also the air circulation in the soil is accelerated, the respiration of plant root systems is promoted, and further the growth of plants is promoted; the brackish water in which minerals in the saline-alkali soil are dissolved is subjected to electrolytic treatment, products such as sulfuric acid, hydrochloric acid and sodium hydroxide are obtained through recycling, economic benefits are obtained, meanwhile, accumulation of the minerals in soil is reduced, and improvement of the saline-alkali soil is achieved; water in the water storage tank is recycled, so that the consumption of water resources in the saline-alkali soil improvement process is reduced.

This technical solution belongs to the fields of ecological agriculture, soil biological improvement, and intelligent fertilization technology, specifically involving a method and system for in-situ activation and chelation of minerals based on precise soil nutrient detection. The method includes the following steps: S1. Dual-track soil nutrient collection; S2. Multi-factor targeted formulation calculation; S3. Independent chelation in separate tanks; S4. Final mixing and application; S5. Application. This invention uses natural mineral powder, biological organic acids, and compound probiotics as core raw materials, eliminating the need for expensive chemical chelating agents. The preparation process is green and residue-free, achieving efficient utilization of mineral fertilizers while reducing production costs. It is suitable for the application needs of large-scale field planting, truly achieving the technical goals of low cost, high efficiency, and green residue-free operation. It simultaneously reduces fertilizer use and increases efficiency, improves soil barriers, and enhances arable land quality, possessing strong promotional and application value and industrial economic benefits.

The invention discloses a construction waste road full-section recycling method based on biomimetic mineralization, and belongs to the field of composite materials and resource regeneration. The invention develops a biomimetic mineralized rock-soil enhancer. A proper mineral precursor and a hydrogel precursor are mixed, gel solidification and mineral crystallization reaction are coupled through formula regulation and control, the gel-mineral composite material is generated in situ in one step, and the structure of the gel-mineral composite material has high bionic characteristics. The gel component of the composite material contains high-density hydrogen bonds, so that a covalent-non-covalent double cross-linked network is formed; meanwhile, the hydrophobic groups contained in the hydrogel can prevent water molecules from attacking hydrogen bonds and stabilize the action of the hydrogen bonds, so that the water absorption of the hydrogel is reduced, and the obdurability of the hydrogel is enhanced. Spherical mineral particle components densely distributed in the gel have high rigidity, stress concentration can be resisted, and crack generation and expansion are hindered. Interfaces of the two components are firmly combined to form an organic whole. Therefore, after the biomimetic mineralization enhancer is cured, the product has high obdurability.

The invention relates to the technical field of organic solid fuel combustion, and discloses a method for predicting the generation amount of solid fuel combustion particles. The method comprises the following steps: carrying out component analysis on the solid fuel, and predicting the release concentration of a gas phase of combustion of the solid fuel, the concentration of a reduction reaction product, a particle size distribution curve of breakable mineral particles after crushing, a particle size distribution curve of fuel particles after crushing and a particle size distribution curve of intrinsic minerals after combustion of the fuel particles; and generating a source item based on the prediction data, inputting the source item into the group balance model, outputting a particle size distribution curve of the particulate matters after the combustion reaction, and predicting the emission amount of the particulate matters according to the output particle size distribution curve. The technical problem that an existing research on the generation amount of the organic solid fuel combustion particles lacks a means for predicting the generation amount of the organic solid fuel combustion particles is solved.

The invention relates to a method for simultaneously increasing two-stage carbon sequestration efficiency of charcoal pyrolysis preparation and soil storage, which comprises the following steps: mixing different types of mineral substances with given biomass according to different proportions, preparing various biochar at different pyrolysis temperatures, and calculating the carbon sequestration potential of the biochar; the method comprises the following steps: selecting different types of soil, applying biochar into the soil, culturing, taking out, calculating the carbon retention rate through the carbon content before and after culturing, determining the contribution of soil environmental factors to the carbon retention rate through machine learning, and calculating the correlation coefficient between the soil environmental factors and the carbon retention rate; key soil environment factors of the target soil are obtained, a VIKOR model is constructed based on the carbon sequestration potential and the carbon retention rate, optimal biochar is determined, and pyrolysis parameters corresponding to the optimal biochar are the optimal choices under the target soil. Compared with the prior art, the correlation between the stability of the biochar and the soil environment factors is established, and the biochar is adapted by properly adjusting the key soil environment factors, so that the biochar has higher stability in the soil.

The invention discloses a method for preparing a low-grade phosphorite-biomass composite modifier for promoting regeneration of a soil aggregate structure. The composite modifier comprises the following raw materials: low-grade phosphorite, an activating agent, a biomass complex, a soil conditioner, a cementing agent and a microbial agent in a mass ratio of (32-85): (20-50): (25-38): (25-44): (20-36): (5-14). The low-grade phosphorite and the biomass are combined to construct a mineral skeleton-organic bonding synergistic system, the low-grade phosphorite provides a mineral skeleton to support aggregate formation, the biomass plays a bonding role and increases organic matters, and the low-grade phosphorite and the biomass synergistically promote the regeneration of a sandy soil aggregate structure, so that the soil structure regeneration is improved. And a new path with technical innovation and economic feasibility is provided for soil improvement of sandy soil.

The invention discloses a water purification system, and relates to the technical field of water purification, the water purification system comprises a water inlet waterway, a filtering waterway, a fresh mineral waterway and a heating waterway, the filtering waterway is communicated with the water outlet end of the water inlet waterway, the filtering waterway is provided with a first filter element, a second filter element and a third filter element, the second filter element is configured to be a mineralized filter element, and the third filter element is configured to be a fresh mineral waterway. The second filter element is configured to be a first filter element, the third filter element is configured to be a reverse osmosis filter element, the second filter element and the third filter element are arranged at the downstream of the first filter element in parallel, the water inlet end of the fresh mineral water path is communicated with the water outlet side of the second filter element, the heating water path is provided with a heating device, and the water inlet end of the heating water path is communicated with the water outlet side of the third filter element. According to the technical scheme, the fresh mineral water way independent of the reverse osmosis filter element is provided, so that fresh mineral water which meets the drinking standard and is rich in mineral substances is provided for a user, and the water use requirement of the user is met.

The utility model relates to indoor water purification equipment which comprises a machine shell, a pre-filtering system, a filtering system, a control system and a water production system are arranged in the machine shell, and a water supply system is arranged outside the machine shell. Wherein the pre-filtration system is used for filtering particles with the particle size of 20-150 microns in tap water, the filtration system is used for producing drinking water containing mineral substances, the water production system is used for storing the drinking water produced by the filtration system, the water supply system comprises a water supply pipeline, and the inlet end of the water supply pipeline is communicated with the outlet end of the water production system; a variable-frequency water pump and a stop valve are sequentially arranged on the water supply pipeline, a water taking opening is formed in the tail end of the water supply pipeline, and the control system is used for circulation and closing of all the pipelines. The utility model mainly aims to provide indoor water purification equipment, which can shorten the filtering process and can keep the balance of mineral substances in drinking water at the same time.

The invention relates to a deep stratum well hole and cave mining system and method. The system comprises a well pattern and cave system which is composed of at least one main well hole communicated to a mining position from a well mouth, a plurality of branch well holes and a broken and expanded space; the flow control system is arranged in the well pattern cave system and is used for regulating and controlling injection or discharge of fluid in the broken and expanded space; the system comprises a plurality of branch well holes which are small in spacing and high in curvature and are used for forming the crushing and expanding space. The multilateral well holes are communicated with the crushing and expanding space and are used as channels for injection and discharge; the crushing and expanding space is composed of a plurality of cavities, groove-shaped spaces, seam-shaped spaces or large-diameter well holes formed through reaming, and the crushing and expanding space is filled with gravel piles generated through impact crushing and used for leaching mineral substances. The in-situ wet mining technology for the non-high-permeability stratum is achieved, the wet metallurgy technology is carried out underground from a factory, and an effective path is provided for mineral resource development of the deep stratum.

A purification system for high-hardness strontium-containing natural mineral water relates to the field of water treatment technology. The invention comprises a pretreatment unit, an ultrafiltration unit, a nanofiltration unit, a blending and adjustment unit, and an ozone ultraviolet disinfection unit connected sequentially along the water flow direction. The pretreatment unit removes suspended solids and colloidal particles from the raw water; the ultrafiltration unit retains beneficial minerals such as strontium; the nanofiltration unit efficiently retains calcium and magnesium ions to reduce hardness; the blending and adjustment unit automatically adjusts the ratio of ultrafiltration to nanofiltration permeate through an online strontium content detector and a flow control valve, precisely controlling the strontium content in the finished product water; and the ozone ultraviolet disinfection unit ensures microbial safety. This invention effectively reduces the hardness of raw water, prevents sedimentation, and stably controls the strontium content within the standard range, maintaining the mineral balance and good taste of the finished water. It is suitable for the large-scale, stable production of high-hardness strontium-containing natural mineral water.

The application relates to the field of coal, in particular to a coal heat calculation method and system. The method comprises the following steps: based on a known coal sample database, optimizing and pre-storing model parameter sets of organic matter molecular structure corresponding to different coal types; when the heat value of a to-be-detected coal sample is calculated, the coal type, element content and ash content data of the coal sample are obtained; the corresponding pre-stored parameter set is called according to the coal type; high-sulfur coal or low-sulfur coal is divided according to the amount-of-substance relationship between sulfur elements and Fe / Ti, and the endothermic quantity Q 矿物质 of mineral matter is calculated according to the distribution of mineral elements to a preset chemical reaction library ; the number of core structure units and alkyl side chains in organic matter is determined through the amount-of-substance conservation equation of organic carbon and hydrogen, and the heat value Q 有机质 of organic matter is calculated ; the comprehensive heat value is obtained based on the formula Q v =Q 有机质 -Q 矿物质 ; the defects of poor universality and failure to consider the influence of sulfur and mineral matter in the traditional method are solved, the error is small, and the heat value calculation requirement of an industrial coal sample is met.

The application discloses a processing method and an electrolysis device for electrolytic reduction and oxidation of water, and belongs to the technical field of electrolytic tanks, to solve the problem that in the process of manufacturing hydrogen-rich water, half of the water containing impurities and beneficial minerals for human bodies is discharged as waste water, and the effect of the minerals on human bodies is ignored, and hydrogen is not soluble in water; the method comprises the following steps: filtering tap water through a pre-filter; magnetizing the filtered water through a pipeline and then inputting the water into the electrolysis device; and simultaneously performing ultrasonic oscillation and electrolysis on the water in the electrolysis device; the method can realize continuous circulation electrolysis of large flow separation, and the application of high magnetization and ultrasonic wave technology solves the problems of small water flow, low hydrogen concentration and easy scaling of the existing electrolytic tank, so that the electrolysis effect is better, the water flow can be large or small, the hydrogen concentration is improved, and scaling is not easy.