742 results about "Calcium hydroxide" patented technology

The invention belongs to the technical field of calcium hydroxide preparation, and particularly relates to a preparation method of calcium hydroxide with high specific surface area, which comprises the following steps: S1, adding triethanolamine and diethanolisopropanolamine into water, and uniformly mixing to obtain an active agent solution; s2, mixing quick lime with an active agent solution, and carrying out digestion reaction to generate a calcium hydroxide coarse material; and S3, sieving and drying the calcium hydroxide coarse material to obtain the calcium hydroxide with the high specific surface area. The specific surface area of calcium hydroxide can be remarkably increased through the active agent solution, meanwhile, the uniformity and sufficiency of the quick lime digestion reaction are optimized, the calcium hydroxide particle aggregation phenomenon is reduced, and finally the calcium hydroxide product with the high specific surface area and the high activity is prepared.

The invention discloses a high belite sulphoaluminate cement-based two-component grouting material and a preparation method thereof. The grouting material comprises a gelling component and a coagulating reinforcing component, wherein the gelling component is prepared from a high belite sulphoaluminate cement clinker and an additive A; the admixture A comprises a water reducing agent, a retarder and slow-release minerals; the coagulating and reinforcing component comprises ordinary Portland cement clinker, calcium hydroxide, gypsum and an additive B; the admixture B comprises a water reducing agent and an early strength agent. According to the high belite sulphoaluminate cement-based grouting material, the formula composition of the high belite sulphoaluminate cement-based grouting material is optimized, so that the hydration process of the high belite sulphoaluminate cement is more continuous and lasting, and the compressive strength of the obtained high belite sulphoaluminate cement-based grouting material can be continuously improved.

The invention relates to the technical field of environmental protection and dust removal, and discloses a dust removal device for calcium hydroxide product production, the dust removal device comprises a box body, the lower surface of the box body is provided with two sets of dust falling hoppers, the two sides of the box body are fixedly connected with an air inlet pipe and an air outlet pipe respectively, and the inner wall of the box body is provided with a partition plate. The driving assembly drives the pulse sliding pipe and the plugging assembly to move downwards, after the pulse sliding pipe and the plugging assembly move to a certain position, the control assembly controls the plugging assembly to plug a certain section of the filter cartridge, then the pulse mechanism enables gas to pass through the pulse main pipe, the pulse fixing pipe and the pulse sliding pipe, and then the gas is blown out from the pulse head. And then the driving assembly drives the blocking assembly to continue to move downwards, pulse dust removal is carried out on the filter cartridge section by section, pulse airflow accurately covers the whole section of the filter cartridge, it is ensured that dust on all parts can be thoroughly removed, and the dust removal effect is greatly improved.

The invention discloses a method for preparing calcium hydroxide slurry with high specific surface area and high pore volume, which comprises the following steps: S1, adding an alcohol reagent into water to obtain a solution A; s2, adding an inorganic salt solution into the solution A, and uniformly mixing to obtain a solution B; s3, a reagent X is added into the solution B, ultrasonic mixing is performed to obtain a solution C, and the reagent X is a mixture of phenol or triethanolamine, ethidene diamine and ethylamine; and S4, adding calcium oxide powder into the solution C, continuously stirring, and reacting to obtain calcium hydroxide slurry. The invention provides a method for preparing calcium hydroxide slurry with high specific surface area and high pore volume, the calcium hydroxide slurry prepared by the method can form calcium hydroxide with high specific surface area and high pore volume when in use, and the method aims to solve the problems of low specific surface area and low pore volume of the existing calcium hydroxide. Therefore, the problem of desulfurization performance inactivation caused by blockage of calcium hydroxide (desulfurizer) pores by generated CaSO3 and CaSO4 in the desulfurization process is avoided.

The invention discloses a method for preparing calcium hydroxide with high specific surface area and high pore volume by a semi-dry method, which comprises the following steps: S1, adding an alcohol reagent into water, and uniformly mixing to obtain a solution A; s2, adding a composite cationic surfactant into the solution A, and dissolving to obtain a solution B; s3, adding an iron salt solution into the solution B, and uniformly mixing to obtain a solution C; s4, adding triethanolamine into the solution C, and performing ultrasonic dissolution to obtain a solution D; and S5, spraying the solution D into calcium oxide powder, continuously stirring, and reacting to prepare calcium hydroxide with high specific surface area and high pore volume. The calcium hydroxide prepared by the method has a high specific surface area and a rich pore structure, is powdery after reaction, and is relatively low in water content.

The invention provides a method for decomposing and mineralizing fluorine-containing organic matter wastewater, which is applied to the technical field of treatment of fluorine-containing organic matter wastewater generated in a perfluoroether elastomer emulsion flocculation process, and comprises the following steps: S1, carrying out adsorption and desorption treatment on the fluorine-containing organic matter wastewater to obtain a concentrated solution of the fluorine-containing organic matter wastewater; s2, hydrogen peroxide and ferrous ions are added into a container containing the concentrated solution to obtain a mixed solution, the pH of the mixed solution is adjusted to be 2-4, the concentration mass ratio of the hydrogen peroxide to organic matter contained in the fluorine-containing organic matter wastewater is 1: 1-2, the molar ratio of the hydrogen peroxide to the ferrous ions is 1-6: 1, micro-nano bubbles are introduced into the mixed solution, and ultrasonic treatment is conducted; s3, calcium hydroxide is added into the treated mixed solution, calcium fluoride precipitates are obtained through centrifugal treatment, and the fluorine-containing organic matter in the wastewater can be degraded and mineralized.

The invention discloses a preparation method of high-viscosity cationic starch, which belongs to the technical field of modified starch, and comprises the following steps: crosslinking epichlorohydrin, ball-milling and cationizing; the epoxy chloropropane crosslinking comprises the following steps: mixing starch, calcium hydroxide and deionized water, stirring at 40-50 DEG C, adding sodium stearoyl lactylate, stirring at 50-55 DEG C, naturally cooling to room temperature, adding sodium chloride and epoxy chloropropane, stirring, dropwise adding a potassium hydroxide aqueous solution, stirring, adjusting the pH value to 6, filtering, taking filter residues, washing and drying to obtain crosslinked starch; in the step of ball milling, calcium hydroxide, sucrose fatty acid ester SE-11 and deionized water are mixed and then subjected to ball milling, and a ball-milled material is obtained; the prepared high-viscosity cationic starch is high in paste liquid viscosity and cationic substitution degree, good in paste liquid viscosity stability, uniform in substitution degree and paste liquid viscosity, high in reaction efficiency in cationization and low in alkali consumption.

Processes and apparatuses for degrading PFAS into calcium fluoride, carbon dioxide, and water. PFAS are heated and introduced to a calcium base which will degrade the PFAS. The PFAS may be in a stream that is a PFAS enriched stream formed by desorbing the PFAS from an adsorbent which removed the PFAS from a contaminant stream. The PFAS may be desorbed in the presence of the calcium base. The calcium base may be calcium hydroxide, calcium oxide, calcium carbonate, or combinations thereof.

The invention relates to a starch pore-enlarging type high-chlorine-capacity long-acting high-temperature dechlorinating agent and a preparation method thereof, and belongs to the technical field of dechlorinating, the starch pore-enlarging type high-chlorine-capacity long-acting high-temperature dechlorinating agent comprises the following raw materials: complexing coating calcium hydroxide, modified hydroxyapatite, a composite inorganic adhesive, reinforcing and toughening whiskers, a composite pore-forming agent, a composite synergist, nano calcium carbonate and water; according to the starch reaming type high-chlorine-capacity long-acting high-temperature dechlorinating agent obtained by the invention, the breakthrough chlorine capacity is 40.9 to 44.9 percent, the crushing strength is 139 to 151N. Cm <-1 >, and the abrasion rate is 0.8 to 1.5 percent.

The invention discloses a method for comprehensively recycling electrolytic aluminum carbon residues, and relates to the technical field of comprehensive recycling of waste materials. The method for comprehensively recycling the electrolytic aluminum carbon residues comprises the following steps of: breaking the carbon residues into 0.1-1cm particles by a hammer, carrying out wet ball milling under the condition of adding a flotation agent, and separating carbon powder on the upper layer and gray regenerated cryolite on the bottom layer of slurry through flotation equipment, wherein the fineness is 40-100 meshes, and the carbon content is less than 1%; the preparation method comprises the following steps: adding water into cryolite to prepare slurry, adding calcium oxide or calcium hydroxide, heating, stirring and reacting for 1-3 hours, and carrying out filter pressing to obtain filtrate and filter residues which are calcium fluoride and a sodium metaaluminate solution; the purity of the calcium fluoride powder is greater than 85%; and introducing hydrochloric acid into the filtrate, stirring and adjusting the pH to 7-9 to obtain aluminum hydroxide slurry, filtering and washing to obtain aluminum hydroxide, and drying to obtain the aluminum hydroxide with the purity of more than 95%.

A process produces high-purity vanadium chemicals from vanadium raw materials having high molybdenum contents. Molybdenum is selectively precipitated via vanadium from alkaline vanadate solutions using the following process steps: providing a molybdenum-containing alkaline vanadate solution, adding calcium hydroxide as a precipitant in portions while keeping the pH constant between 6 and 7 using acid, mixing the solution, solid-liquid separation of the resulting suspension, and further processing the low-molybdenum alkaline vanadate solution to produce a high-purity vanadium chemical having a molybdenum content of at most 500 ppm.

The invention discloses a polymer self-repairing waterproof paint and a use method thereof, and relates to the technical field of waterproof paints.The polymer self-repairing waterproof paint is prepared from cement, carbonized waste aerated building blocks, carbonized copper slag, modified montmorillonite, polymer emulsion, a dispersing agent, a defoaming agent and a flatting agent as main ingredients, and aragonite whiskers dispersed in the carbonized waste aerated building blocks are used for improving the strength of the waterproof paint; silica gel generated by carbonization reacts with cement to generate calcium hydroxide to generate C-S-H with a low calcium-silicon ratio, so that the corrosion resistance and the impermeability of the coating are improved; the carbonized copper slag is doped into the waterproof coating, so that the wear resistance of the waterproof coating is improved, copper ions can achieve an antibacterial effect, silica gel generated after carbonization has relatively high activity, and the cement consumption is further reduced; on one hand, carbon sequestration is realized, and on the other hand, the carbonized waste aerated building blocks and active substances in the copper slag are utilized, so that the strength performance, corrosion resistance, impermeability and wear resistance of the coating are improved, the cement consumption is reduced, and the building material utilization rate of the coating is increased.

The invention discloses a low-carbon composite cementitious material, a mortar preparation method and application, and the low-carbon composite cementitious material comprises the following raw materials by weight: 50%-85% of cement, 15%-50% of Yellow River mud sand micro powder, 0%-0.75% of a sodium hydroxide activator, and 0%-7.5% of a calcium hydroxide activator. The method has the beneficial effects that the specific surface area of the Yellow River mud sand is influenced through mechanical grinding, more nucleation sites are generated on the surface of the Yellow River mud sand, the subsequent hydration reaction of the Yellow River mud sand and cement is promoted, and the Yellow River mud sand is easy to form micro-group aggregation through grinding, so that internal pores are filled, the porosity is reduced, and the strength is improved; and through the composite excitation effect of the two alkali activators, the generation of C-S-H and C-A-S-H gels is promoted, the pore size distribution is refined, the microstructure is improved, and the potential volcanic ash or activity of sediments is excited to the maximum extent.

The application provides an ultra-high performance concrete and a preparation method thereof, and the concrete comprises the following raw materials in parts by weight: cement 260-280 parts, modified quartz sand powder 120-160 parts, modified steel fiber 8-15 parts, fly ash 20-26 parts, polycarboxylic acid water reducing agent 7-12 parts, EVA emulsion 16-24 parts, alkali-resistant glass fiber 4-7 parts, and water 140-180 parts. The preparation method of the modified steel fiber is as follows: the steel fiber is soaked in a potassium hydroxide solution and then dried, the dried steel fiber is added into a calcium hydroxide slurry, potassium carbonate is added for a first stirring reaction, a mixed solution of nano-SiO2 and a coupling agent is further added for a second stirring reaction, filtration and drying are performed, and the modified steel fiber is obtained. The ultra-high performance concrete prepared by the application has scientific proportioning of various raw materials, good toughness, strength and crack resistance, and can effectively improve the service life of the concrete.

The present application relates to a kind of sea sand chloride solidifying agent and its application method, the solidifying agent includes solidifying agent A and solidifying agent B;The solidifying agent A is proportioned according to the raw material of weight parts as follows: modified hydrotalcite 2~5 parts, ultrafine silica powder 0.05~0.2 parts, water 30~120 parts;The solidifying agent B is proportioned according to the raw material of weight parts as follows: metakaolin 1~4 parts, calcium hydroxide 0.1~0.3 parts, water 45~180 parts.The present application is attached to the surface of sea sand by modified hydrotalcite with ion adsorption effect and forms inner solid layer, can effectively absorb the chloride ion released by sea sand;While using calcium hydroxide to excite metakaolin with sheet shape and form stable outer solid layer, can effectively prevent the shedding of inner solid layer material;The generated hydrated calcium silicate and hydrated calcium aluminate gel can also absorb the chloride ion solidified from the escape of inner solid layer, further improve the chloride ion solidification effect.

This application relates to the field of brake friction material technology, specifically disclosing a brake pad compound, a synthetic brake pad, its preparation method, and its application. The brake pad compound provided in this application comprises the following components in parts by weight: 10-13 parts liquid nitrile rubber, 8-12 parts modified phenolic resin, 20-40 parts reinforcing fiber, 8-12 parts calcium hydroxide, 1-3 parts light magnesium oxide, 10-15 parts calcium carbonate whiskers, 2-5 parts calcined alumina, 10-15 parts graphite, 5-10 parts heavy calcium carbonate, 0.8-1.2 parts sulfur, and 0.8-1.2 parts accelerator; the reinforcing fiber comprises steel fiber, aramid fiber, and mineral fiber in a weight ratio of (10-25):1:(5-15). The brake pad compound and the method for preparing the synthetic brake pad provided in this application can produce synthetic brake pads with good frictional stability and small batch-to-batch variations, resulting in high safety and reliability when used in traffic vehicle braking systems.

The application provides a quartz sand acid washing waste liquid resource treatment method, and belongs to the field of industrial waste water treatment, and comprises the following steps: adding magnetic composite seeds to the quartz sand acid washing waste liquid, and performing magnetic separation after stirring treatment; adding soluble potassium salt to the treated waste liquid to recover potassium fluosilicate; treating the filtrate through diffusion dialysis to obtain recovered acid and dialysis residual liquid; the diffusion dialysis treatment adopts an asymmetric membrane, the asymmetric membrane has a physical gradient of one side being a dense structure and the other side being a loose structure, and the dense structure side is in contact with the waste liquid; and adding calcium oxide or calcium hydroxide to the dialysis residual liquid for deep treatment and calcium recovery. The application provides a quartz sand acid washing waste liquid resource treatment method which is low in treatment cost, high in resource recovery rate and friendly to the environment, and realizes the differentiated resource recovery of the quartz sand acid washing waste liquid.

The invention provides nanoscale hydroxyapatite as well as a preparation method and application thereof, and relates to the technical field of hydroxyapatite. The preparation method provided by the invention comprises the following steps: completely reacting calcium hydroxide slurry with a phosphoric acid solution under mechanical mixing, and standing and curing to obtain hydroxyapatite slurry; mixing the hydroxyapatite slurry with a binder, and calcining at 800-1200 DEG C to obtain a precursor; and grinding the precursor in a water phase to obtain a nano suspension, and carrying out spray drying to obtain the nano-scale hydroxyapatite. According to the preparation method disclosed by the invention, a stable multi-stage pore structure can be constructed through high-temperature calcination, and the regularity and the stability of the size of the hydroxyapatite can be improved through spray drying treatment, so that the nano-scale hydroxyapatite has high biological activity and stability, and the defect that pure hydroxyapatite slurry is not resistant to scouring is effectively overcome.

The application provides a high-purity calcium carbonate purification device and process, relates to the technical field of separation and purification devices, and the device comprises a reaction kettle, the reaction kettle is provided with a stirring assembly, further comprises a mixing unit, the mixing unit comprises a lower cylinder, a mixing cylinder and a driving piece, the lower cylinder is arranged at the top of the reaction kettle, a rotating shaft is coaxially arranged in the mixing cylinder, branch pipes two and a feeding port are arranged on the side wall of the mixing cylinder; the upper end of the rotating shaft arranged in the mixing cylinder extends into the end of the lower cylinder, a centrifugal flinger is arranged at the end of the lower cylinder, a plurality of flinger outlets are arranged on the outer circumferential surface of the centrifugal flinger, an adsorption port is arranged on the outer circumferential surface of the upper end of the rotating shaft, and a channel is arranged in the rotating shaft and connected with the flinger outlets and the adsorption port; the paste is uniformly dispersed and added into the kettle body through the mixing unit, the stirring assembly of the reaction kettle works simultaneously, the uniformly added calcium hydroxide is mixed and stirred with the solvent in the kettle body, so that the probability of calcium hydroxide paste clumping and sinking to the bottom is reduced, the mixing uniformity of the calcium hydroxide is improved, the mixing efficiency is improved, and energy is saved.

The utility model discloses a calcium hydroxide particle size accurate regulation and control device which comprises a workbench and a particle size regulation and control assembly used for accurately regulating and controlling the particle size of calcium hydroxide particles, a collecting hole is formed in one end of the upper surface of the workbench, and a fixing cylinder is fixedly installed at one end of the edge of the upper surface of the collecting hole. The particle size regulation and control assembly is detachably installed on one side of the fixing cylinder, an installation rod is fixedly installed at the other end of the upper surface of the workbench, an empty groove is formed in one side of the workbench, a vibration motor is arranged in the empty groove, and a linkage cylinder is fixedly installed at one end of the outer surface of the fixing cylinder. The whole structure has high regulation and control capacity on calcium hydroxide particles, accurate regulation and control can be carried out, the condition of mixing caused by large particle size span is avoided, particle size distribution is uniform, and application scenes with high particle size uniformity requirements can be effectively met.

The invention belongs to the technical field of concrete, and provides ecological concrete and a preparation method thereof, the ecological concrete comprises 25-35 parts of steel slag, 10-20 parts of slag powder, 5-10 parts of desulfurized gypsum, 30-35 parts of recycled aggregate, 5-8 parts of charcoal, 1-2 parts of fiber, 1-1.5 parts of a water reducing agent, 0.5-1 part of an air entraining agent, 1-2 parts of an antifreezing agent, and 15-20 parts of water. The steel slag serving as an early strength and alkaline component of the concrete not only provides strength, but also can release calcium hydroxide in the hydration process due to the calcium oxide active component contained in the steel slag, so that an alkaline environment is provided for the system; the superfine slag powder is rich in active silicon dioxide, aluminum oxide and other components and can be subjected to a pozzolanic reaction with calcium hydroxide in an alkaline environment, so that the later strength of the ecological concrete is remarkably enhanced, and the defect that the later strength of the steel slag is slowly increased is overcome; according to the invention, volcanic ash reaction is taken as a core mechanism, and the strength and durability are improved by recycling wastes.

The invention belongs to the technical field of new materials, and provides an aerogel composite insulation board as well as a preparation method and application thereof. The aerogel composite insulation board is prepared from the following raw materials in parts by weight: 100 parts of an inorganic cementing material, 4.5 to 10 parts of polystyrene foam particles, 0.6 to 1.8 parts of silicon dioxide aerogel powder, 3 to 6 parts of silica sol and 80 to 110 parts of water, the inorganic cementing material comprises Portland cement, gypsum and calcium hydroxide. The aerogel composite insulation board is low in heat conductivity coefficient, high in compressive strength and excellent in fire resistance and flame retardance, meets the increasingly high building energy-saving and fireproof safety requirements at present, and is a novel building energy-saving insulation material with great development prospects.

The utility model discloses a kind of calcium hydroxide efficient centrifugal fan, including bottom plate, the top of bottom plate is equipped with two fixed frame, two fixed frame are slidably fitted with moving frame, one fan body is rotatably fitted between two moving frames, one side of one moving frame is equipped with support plate, the top of support plate is equipped with motor, the side of fan body is rotatably fitted with fan shaft, coupling is provided between motor output end and fan shaft;The side of fan body is provided with air inlet, air outlet is provided on fan body, filter screen is installed on the side of air inlet, lifting mechanism is provided between fixed frame and moving frame.The utility model is equipped with moving frame, can mobilize lifting mechanism to adjust the height of moving frame and fan body, make fan body rotation adjustment the orientation of air outlet, so that it can be adjusted according to need, it is convenient to install when different orientation and height of air outlet change.

A mineral-filled acrylic resin system for the production of molded bodies, comprising a radically polymerizable (meth)acrylate binder system, an initiator system and mineral fillers, characterized in that the system comprises at least one thiol-containing compound with functionally dampened crosslinking effect and a polymerization-compatible calcium hydroxide additive system, wherein both the crosslinking effect and the basic effect are spatially and functionally homogenized.

The invention discloses a method for preparing polyaluminum chloride from fly ash through mechanical activation and ammonium sulfate roasting and synchronously removing calcium, and particularly relates to the field of hydrometallurgy and solid industrial waste treatment. Adding ammonium sulfate powder into the ground fly ash obtained in the step S1, carrying out a roasting process, carrying out sulfuric acid leaching, adding calcium hydroxide at the same time, and carrying out solid-liquid separation; by adopting the ground fly ash, favorable conditions are created for roasting the ammonium sulfate powder and the aluminum compound. According to the technology, the aluminum element in the fly ash can be efficiently extracted within 30 minutes, resource utilization of solid waste is promoted, aluminum resources in the ash residues are recycled to the maximum extent, and the problems proposed in the background technology are solved.

The invention relates to potassium superoxide composite particles as well as a dry-method preparation process and a preparation system thereof, and belongs to the technical field of superoxide. The composite particle comprises a core and a shell layer, the core is a mixture of potassium superoxide and bentonite, the shell layer is a calcium hydroxide wrapping layer wrapping the core, and the core and the shell layer form a core-shell structure; the process comprises the steps of dry powder mixing, dry granulation and size stabilization, microwave strengthening and surface wrapping. The system comprises a raw material pretreatment device, a dry powder mixing device, a dry rolling granulation device, a microwave strengthening treatment device and a surface wrapping device. A dry granulation process is adopted, the risk that potassium superoxide and water are subjected to violent reaction is fundamentally eliminated, bentonite is used as an inert matrix, the effects of diluting and stabilizing potassium superoxide are achieved, the sensitivity of potassium superoxide to external stimulation is reduced, and the particle product is excellent in comprehensive performance.

The invention discloses a method for separating silicon-containing impurities from re-quicklime, and relates to the technical field of separation of silicon-containing impurities from re-quicklime, and the method comprises the following steps: S1, mixing calcined re-quicklime with water according to a mass ratio of 1: (1-3) to form re-quicklime slurry, and reacting calcium oxide in the re-quicklime with water to generate calcium hydroxide; s2, the reaction is maintained for 30-90 minutes under the stirring condition, and the reaction temperature is controlled to be 40-80 DEG C; s3, standing and settling after stirring is stopped, so that calcium hydroxide with lower density floats upwards, and silicon-containing impurities with higher density, including silicon dioxide and calcium silicate, are settled; s4, separating the upper-layer calcium hydroxide slurry from the lower-layer silicon-containing precipitate by adopting a gravity separation, scraping or mechanical filtration mode to obtain a re-quicklime product after silicon removal, compared with a traditional acid pickling or single screening process, the method does not introduce an acidic medium, does not need high-energy-consumption equipment, is simple in process and environment-friendly, and is suitable for continuous industrial production.

The invention provides a bouquet-shaped calcium carbonate preparation method, and relates to the technical field of calcium carbonate preparation processes. The preparation method comprises the following steps: 1) adding polyhydroxy organic acid into water as a base solution; 2) preparing a calcium hydroxide suspension as a calcium source; (3) simultaneously adding a calcium source into the base solution and introducing CO2 gas; 4) adjusting the adding speed of a calcium source in real time to control the reaction conductivity interval until the carbonation reaction is finished to obtain a calcium carbonate suspension; and 5) precipitating, filtering, drying and screening the obtained suspension to obtain a target product. According to the invention, the formation of bouquet-shaped calcium carbonate crystals is controlled by combining conductivity regulation and control and an organic molecule induction method. The method is simple in operation process and small in chemical reagent addition, and the prepared bouquet-shaped calcium carbonate is uniform in morphology, good in dispersion, multiple in interfacial active sites, large in specific surface area and rich in pores and has a secondary fine structure.

The application relates to the technical field of mine safety detection equipment, and discloses a rotary rolling test device for measuring calcium hydroxide dust rate, which comprises a mounting seat, a composite rotating part, a rotary driving part, an inner ring driving part and a control center. The mounting seat is provided with a mounting cavity, opposite two inner walls of the mounting cavity which are distributed at intervals along a first horizontal direction are respectively provided with a transmission shaft and a driven shaft, and the transmission shaft and the driven shaft are coaxially arranged; the composite rotating part comprises an outer ring, an inner ring and a box body, the outer ring is connected with the transmission shaft and the driven shaft respectively; the inner ring is coaxially embedded in the outer ring, and the inner ring can rotate around its own axis relative to the outer ring; the box body is installed on the inner ring through a pivot shaft; the box body can rotate around the pivot shaft relative to the inner ring; the rotary driving part is drivingly connected with the transmission shaft; the inner ring driving part is installed on the outer ring and drivingly connected with the inner ring; and the control center is electrically connected with the rotary driving part and the inner ring driving part respectively. The device realizes multi-dimensional simulation impact.

This invention relates to the fields of high-purity sodium preparation and safe disposal of sodium-calcium slag, and discloses a method and apparatus for preparing high-purity sodium and safely disposing of sodium-calcium slag using a gravity separation-controlled combustion-alkali leaching process. The method includes the following steps: (1) gravity separation of liquid sodium slag to obtain pure sodium and high-calcium sodium slag; (2) calcination of the high-calcium sodium slag to obtain calcined slag; (3) leaching of the calcined slag with an alkaline solution to obtain sodium hydroxide solution and calcium hydroxide. The method and apparatus provided by this invention have advantages such as high efficiency in separating sodium and calcium, saving separation time, safe and controllable production process, and continuous production process. It provides a safe and efficient method for the preparation of high-purity sodium and safely disposes of the new sodium-calcium slag generated by this method, realizing the continuous preparation of high-purity sodium and the safe recycling of new sodium-calcium slag.