41 results about "Dealkalization" patented technology

The invention discloses an efficient consolidation agent for tailings in an underground mine filling mining method and a preparation method thereof, and relates to the technical field of consolidation agents, the consolidation agent is prepared from a gelling base material, a nano reinforcing agent, a chemical exciting agent and an organic fiber reinforcing agent according to a specific mass ratio; aiming at the problems of unstable volume, insufficient strength and the like of a traditional consolidation agent, through high-temperature calcination of the steel slag to eliminate harmful components, dealkalization treatment of the red mud, acid activation of the phosphogypsum and volcanic ash reaction of the fly ash, the volume stability and the gelling activity of a filling body are remarkably improved, and the consolidation agent is suitable for complex underground environment requirements; aiming at the pain points of low early strength, weak interface bonding and the like of the consolidation agent, the cohesion is improved by strong bonding of the surface-modified nano SiO2 and a gelling base material, a chemical exciting agent is added to cooperate with CO2 carbonization to generate nano crystal nucleuses, hydration sites are provided, a pore structure is optimized, bleeding is inhibited, the fluidity and stability of slurry can be effectively improved, and the consolidation effect is good. And the requirements of underground filling homogeneity and pumpability are met.

This invention discloses a lithium slag dealkalization treatment agent and a method for the resource utilization of lithium slag in building materials, comprising the following raw materials in parts by weight: 50-80 parts sodium hydroxide, 30-50 parts water glass, 5-15 parts polycarboxylate superplasticizer, and 10-20 parts calcium carbonate. This invention has the advantage of being environmentally friendly and solves the problems of existing lithium slag resource utilization methods, such as the inconvenience of preparing high-strength, high-insulation building materials from waste lithium slag, insufficient strength of lithium slag building materials making them unsuitable for load-bearing structures or high-load scenarios, limiting their use to low-strength filler materials or non-structural components, significantly reducing their economic value, and poor insulation performance failing to meet energy-saving building standards, resulting in a lack of competitiveness in scenarios requiring thermal insulation such as walls or roofs.

The application discloses a kind of red mud gradient depth purification-rare earth-radioactivity synergistic target purification method, by " hierarchical pretreatment and microwave modification→three-stage gradient dealkalization→rare earth-radioactivity synergistic target purification→full quantization recycling" four-stage integrated process, realize red mud harmless and high-value utilization.The three-stage gradient dealkalization uses microwave-CO2-biological synergic system, after dealkalization pH≤8.0, Na2O content<1%;Rare earth-radioactivity purification is extracted by HDES and coupled with multi-ligand magnetic material system, light rare earth recovery rate≥95%, middle heavy / rare earth recovery rate≥90%, U / Th removal rate≥95%;Full quantization recycling realizes red mud total utilization rate≥98.5%, wastewater reuse rate≥95%, every ton of red mud fixed CO2≥0.2 tons.The application is suitable for various high-alkali, containing radioactive and rare earth red mud treatment, with environmental benefits and economic benefits.

The invention discloses a process for dealkalizing and deeply reducing red mud through gradient temperature control treatment, which comprises the following steps: 1) accurately metering raw materials and grinding; 2) feeding the ground raw materials into a red mud stirrer, and stirring at a gradient rotating speed; 3) feeding the stirred and mixed raw materials into a granulator for granulation, and pressing the materials into particle materials with the particle size of 5-15mm; 4) feeding the particle material into a dealkalization solid-phase reaction device, and forming a particle material after a solid-phase reaction in a reducing atmosphere; (5) feeding the particle material after the solid-phase reaction into a cooling machine, and slowly cooling in a furnace by adopting a nitrogen direct circulating cooling method; 6) crushing the cooled material by a crusher until the particle size is less than 5mm; 7) performing magnetic separation on the ground powder by a high-gradient magnetic separator.According to the method, efficient dealkalization and iron element reduction separation are realized through high-temperature dealkalization pre-reduction and high-temperature deep reduction melt separation.

The invention provides a microwave hydrothermal curing red mud-based building block paving material and a preparation method thereof, and belongs to the technical field of industrial solid waste resource utilization. The preparation method comprises the following steps: adding water into raw materials comprising dealkalized red mud, carbide slag, ardealite, steel slag powder and aluminum tailings, uniformly mixing, carrying out compression molding, putting into a microwave reaction kettle, and carrying out hydrothermal curing treatment under the conditions that microwave irradiation is carried out and the temperature is 100-200 DEG C and the pressure is 0.2-0.4 MPa, so as to obtain the red mud-based building block paving material. According to the preparation method disclosed by the invention, the curing rate of heavy metal ions in an industrial solid waste material is improved and the radioactive hazard of the material is weakened through a quadruple synergistic mechanism of dealkalization pretreatment, low-temperature hydrothermal crystallization, heavy metal ion curing and radiation shielding, so that the red-mud-based building block paving material has relatively high strength; the problem of saltpetering of the red mud is effectively solved, and the application requirements of municipal engineering, river dike dam protection, hazardous waste protection and other scenes can be met.

The invention discloses microwave activated red mud-biomass solid waste magnesium oxychloride aggregate and a circulation method, and belongs to the technical field of solid waste recycling and negative carbon building materials. The method comprises the following steps: mixing Bayer process red mud and biomass solid waste according to a mass ratio of 3: 1-1: 1, and carrying out microwave activation at 500-1200 DEG C for 10-60 minutes; carrying out magnetic separation on the activated material to obtain an iron ore concentrate-biomass charcoal composite material which can be used as a wave-absorbing material, so as to obtain low-alkali activated red mud residues; 10-50 parts of the residues, 15-40 parts of light calcined magnesia powder and 15-40 parts of a magnesium chloride solution are mixed, the molar ratio of magnesium oxide to magnesium chloride is 6-9, and solid waste aggregate is obtained after forming and curing; the waste aggregate is regenerated into active powder after being subjected to heat treatment at 400-800 DEG C for 0.5-2 hours, and new aggregate can be circularly prepared. According to the method, red mud dealkalization and iron recovery, high-value utilization of biomass and carbon sequestration and stability augmentation and closed-loop circulation of aggregate are synchronously realized.

The application relates to a paste filling material, raw material components of the paste filling material comprising: a red mud-based active material, a first red mud, a pumping agent and a stabilizer; wherein the red mud-based active material is obtained by sintering of dealkalization red mud and industrial by-product gypsum, raw material components of the dealkalization red mud comprising a second red mud and calcium oxide-rich slag. The application converts the red mud into the paste filling material through two-stage utilization, has the advantages of simple process and low cost, and has excellent performances such as good fluidity, high mechanical strength and slight expansion, reaches the performance requirements of the mine filling material, and realizes high-content utilization of the red mud in the filling material field.

The invention relates to a method for preparing calcium aluminate by using alkaline residues, which comprises the following steps: adding an induced settling agent into alkaline residue slurry to promote the growth of calcium carbonate crystal grains in the alkaline residue slurry and further promote the settling of calcium carbonate, aluminum calcium carbonate and other products so as to facilitate subsequent better solid-liquid separation; carrying out dealkalization type liquid-solid separation treatment on the sedimentation liquid to obtain low-sodium modified alkaline residues and catalytic filtrate; reacting the catalytic filtrate with aluminum ash to obtain sodium aluminate, ammonia gas, methane and hydrogen; then carrying out solid-liquid separation to obtain modified aluminum ash with less leached fluorine and less volatile ammonia; and preheating and calcining the modified alkaline residues and the modified aluminum ash to obtain a target calcium aluminate product. The preparation method provides a thought for preparing high-quality calcium aluminate from the alkali residues discharged in the Bayer process aluminum oxide production process.

The present invention provides a vanadium extraction tailings calcification reduction dealkalization method. The method comprises the following steps: pre-treating the vanadium extraction tailings with a composite low-temperature curing agent for pelletization to prepare a silicon-free pellet raw material that releases CO2 at high temperature; adopting a hot air drying-microwave consolidation process to strengthen the strength of the pellets; and then using a rotary kiln for reduction roasting, so that the alkali metals in the vanadium extraction tailings enter the gas phase and are removed through dust removal. The obtained slag phase has high iron and vanadium metallization rates and can be directly used in a blast furnace. The alkali metals in the vanadium extraction tailings are effectively removed, enabling the recycling of the vanadium extraction tailings in the ironmaking process, improving the recovery rate of valuable elements in the vanadium extraction tailings, and increasing the blast furnace's ability to process the vanadium extraction tailings.

The invention discloses fly ash-red mud based ultrafine powder and a preparation method and application thereof.The fly ash-red mud based ultrafine powder is prepared from, by weight, 50-70 parts of modified fly ash, 10-35 parts of dealkalized red mud, 4-10 parts of waste glass micro powder and 4-10 parts of nanometer silicon-aluminum sol, the dealkalized red mud is prepared from red mud through calcination-secondary leaching. The fly ash-red mud-based ultrafine powder prepared by the invention can replace S95-grade mineral powder, is remarkably better in working performance, mechanical property and durability after being used for preparing sea sand concrete, can effectively prolong the service life of marine environment concrete engineering while reducing the production cost of the sea sand concrete, and has higher engineering application value.

The present application belongs to the technical field of environmental protection and solid waste recycling, and particularly relates to a method for passivating, completely removing alkali and retaining valuable metal components of red mud. The present application limits the precise alkali removal acid amount by an acid amount formula, creates a weak acid reaction environment, and limits only the alkali substances contained in the red mud to participate in the neutralization reaction by controlling the passivation agent amount, liquid-solid ratio, stirring time and temperature and other parameters, to generate alkali salt dissolved in water, and then separates and discharges the alkali salt by filtration to prepare the alkali-removed red mud filter cake. During the whole reaction process, the metal oxide components such as Fe2O3 and TiO2 are basically completely retained in the alkali-removed red mud filter cake due to the weak acid environment and the passivation and oxidation of the passivation agent. The alkali-removed red mud obtained by the present application contains zero alkali and increased iron content, and can be directly used as fine iron powder or catalyst, adsorbent, building material, roadbed material and the like.

The invention discloses a red mud all-element high-value resource recycling process, and relates to the technical field of red mud. Sodium silicate and sodium alkali are efficiently separated through washing of the double-helix mud washing machine, concentration of the thickener, dealkalization leaching of ammonium chloride, classification of the hydrocyclone, targeted treatment of coarse and fine particles, high-value utilization of silicon alkali overflow liquid, two-stage membrane electrodialysis and the like; the problems of recovery of sodium silicate and electronic-grade silica sol in the red mud, removal and conversion of sodium hydroxide into high-purity sodium hydroxide and full-component decomposition, separation and enrichment of valuable elements (silicon, aluminum, iron, titanium, vanadium, heavy metals and three-rare elements) are completely solved, and finally full-element utilization of the red mud, especially enrichment of alkali-soluble three-rare elements, is realized. The commercial value of the red mud is far higher than that of bauxite, and a feasible industrial path is provided for harmless, recycling and high-value utilization of the red mud.

The invention relates to the technical field of mine filling materials, in particular to an alkali-activated red mud filling material and a preparation method and application thereof. The invention provides an alkali-activated red mud filling material, which is prepared from the following raw materials in parts by weight: 70 to 90 parts of red mud, 10 to 20 parts of a dealkalizing agent, 1 to 3 parts of a dealkalizing-coagulating aid, 10 to 30 parts of an auxiliary cementing material, 0.1 to 0.5 part of a retarder, 0.1 to 0.3 part of a water-retaining agent and 0.1 to 0.3 part of an interface reinforcing agent, wherein the weight part of the red mud is the weight part of the dry basis red mud. The alkali-activated red mud filling material prepared by adopting a method combining a dealkalization technology and an alkali-activated technology provided by the invention is faster in coagulation, higher in compressive strength and lower in bleeding rate, meanwhile, the preparation method solves the problems that a large amount of red mud is high in dealkalization cost and difficult to fully utilize after dealkalization, and has great practical application value.

The invention belongs to the technical field of red mud solid waste treatment, and particularly discloses a strong-basicity red mud-based directional dealkalization environment-friendly filling material and a preparation method thereof. The red-mud-based environment-friendly filling material provided by the invention comprises the following components: red mud, cement, a biomass organic acid modifier and water. The preparation method comprises the following steps: inputting the red mud into a paste storage thickener; mixing the thickened red mud, cement and water, and stirring to obtain initial slurry; adding a biomass organic acid modifier, and continuously stirring to obtain slurry; and filling and curing to obtain the red-mud-based environment-friendly filling material. The invention provides a directional dealkalization technology taking biomass-based organic acid as a core neutralizer, silicon-aluminum activity of the red mud is synchronously activated, auxiliary cementing materials such as slag are not needed, the superiority of biomass-based dealkalization is verified through experimental data, and three targets of dealkalization environmental protection, strength standard reaching and waste treatment with waste are achieved.

The application discloses a method for dealkalization of red mud and resource utilization, characterized in that the method comprises the following steps: adding red mud and titanium dioxide waste acid into deionized water, adding hydrogen peroxide, fully stirring to form a mixed solution, filtering, obtaining dealkalization clear liquid and dealkalization residue; adjusting the pH of the dealkalization clear liquid to neutral, performing solid-liquid separation, obtaining second residue and second clear liquid; adding calcium oxide to the second clear liquid, collecting the gas generated in the process by spraying, performing solid-liquid separation, obtaining third residue and third clear liquid and recycling; and recycling after evaporation and concentration of the spraying liquid. The application enriches the iron content in the dealkalization red mud while dealkalizing the red mud, which is beneficial to iron recovery; the obtained second residue is iron hydroxide, which can be directly used as iron concentrate for recovery and smelting; the third clear liquid is concentrated by evaporation to obtain concentrated ammonia water for continuous reuse, thereby reducing ammonia water consumption; a small amount of solid waste calcium sulfate is generated, and solid waste reduction, resource utilization and harmlessness are truly realized.

The invention discloses a method for removing sodium and potassium in red mud by using a ferric sulfate solution, and belongs to the technical field of industrial solid waste treatment and recycling. The method for removing the sodium and the potassium in the red mud by using the ferric sulfate solution comprises the following steps: mixing the ferric sulfate solution with the red mud, carrying out dealkalization treatment, and then carrying out solid-liquid separation to obtain dealkalized red mud and dealkalized leachate, so as to complete removal of the sodium and the potassium in the red mud. Compared with a traditional acid neutralization method which directly uses inorganic acid or organic acid as a raw material, the method has the advantages that the acid in the dealkalization process comes from Fe < 3 + > hydrolysis; when H < + > is consumed in the dealkalization process, hydrolysis balance of Fe < 3 + > moves to continuously supplement H < + >, selective removal of sodium is realized in the dealkalization process, and the content of Na2O in the dealkalized red mud is 1t; 1%. The acid generated by hydrolysis can effectively dissolve sodium-containing silicate, but hardly dissolves aluminum-containing components in the red mud, so that selective dealkalization is realized.

The application discloses a strain with a red mud dealkalization function and application thereof, and the classification name of the BRY1 strain is Acinetobacter baumannii Acinetobacter baumannii , the preservation number of which is GDMCC No 66371, the preservation date is May 22, 2025, and the preservation unit is Guangdong Microbial Culture Collection Center. The BRY1 strain provided by the application has strong alkali resistance and high acid production capacity, and can quickly and effectively neutralize alkaline substances in red mud. The BRY1 strain is obtained by being separated and screened from a specific environment, i.e., a red mud storage yard, and has good adaptability and dealkalization specificity to the red mud environment.

The application belongs to the technical field of solid waste resource utilization, and particularly relates to a red mud-based multifunctional water treatment agent and a preparation method thereof. The method comprises the steps of red mud dealkalization, drying and crushing, acid dissolution reaction, pH regulation, function enhancement and slow-release carrier forming, etc. By introducing modified polyacrylamide functional additives and compound flocculants, the removal capacity of the treatment agent for heavy metal ions, organic pollutants and high-hardness ions is effectively improved. A sodium alginate-polyvinyl alcohol ion cross-linking slow-release system is used to realize the combination of long-acting release and broad-spectrum purification functions. Compared with the prior art, the method not only realizes the resource utilization of red mud waste, but also has the advantages of structural stability, strong adaptability, high treatment efficiency and the like.

The invention provides low-saline-alkali slag engineering soil and a preparation method thereof. The method comprises the following steps: pumping water-containing alkaline residues into a slurry A stirring device, introducing CO2-containing alkaline residue lime kiln flue gas, and adding a dealkalization auxiliary agent to prepare dealkalized alkaline residue slurry A; meanwhile, in another stirring device B, auxiliary materials and water are mixed, and auxiliary slurry B is obtained; next, pumping the dealkalized alkaline residue slurry A and the auxiliary slurry B into a mixed slurry tank, adding an ionic solubilizer, and further stirring to form mixed slurry; and finally, conveying the mixed slurry to a plate and frame dehydrator, and carrying out filter pressing dehydration treatment to obtain a filter cake, namely the low-alkali low-saline-alkali slag engineering soil. The low-alkali and low-salt-alkali slag engineering soil has excellent early strength and rapid hardening characteristics, meanwhile, the dealkalization and desalination efficiency of the alkali slag is remarkably improved, and a solution is provided for recycling, reduction, harmless treatment and high-value utilization of the alkali slag.

The invention belongs to the technical field of environmental protection and solid waste recycling, and particularly relates to a passivated fully dealkalized red mud catalyst and a preparation method thereof. According to the method, the amount of added accurate dealkalization acid is limited through an acid amount formula, a weak acid reaction environment is created, only alkaline substances contained in the red mud are limited to participate in a neutralization reaction by controlling parameters such as passivation dosage, liquid-solid ratio, stirring time and temperature, water-soluble alkali salt is generated, then the alkali salt is separated and discharged in a filtering mode, and the water-soluble alkali salt is obtained. And preparing a dealkalized red mud filter cake. In the whole reaction process, Fe2O3, TiO2 and other metal oxide components are passivated by the passivator due to a weak acid environment, and the oxidation effect is basically completely retained in the dealkalized red mud filter cake. The alkali content of the dealkalized red mud obtained by the technical method is zero, and the iron content is increased. The red mud prepared through high-temperature calcination can be used as an iron-based denitration catalyst, and the flue gas denitration rate is high.

The present application relates to the technical field of comprehensive utilization of solid waste, and particularly relates to an aluminum-silicon solid waste dealkalization and resource system based on lattice distortion, comprising: a dealkalization control module, comprising a pulping unit for converting aluminum-silicon solid waste into a permeable system; a resource recovery module, comprising a separation unit for separating dealkalized solid phase from alkali-containing liquid phase after dealkalization; a dealkalization determination module for determining whether the dealkalization completeness of aluminum-silicon solid waste meets the requirements according to the dealkalization completion rate; a variable pressure mechanism construction module for determining whether to construct a structure disturbance mechanism and determining the alternating pressure difference amplitude according to the alkali metal ion concentration in the leaching solution of the dealkalized solid phase; and a dealkalization environment adjustment module for determining whether to add a low-concentration weak acid solution according to the net release rate of alkali metal ions in the dealkalization process. The present application improves the dealkalization completeness of aluminum-silicon solid waste.

The invention relates to the technical field of cementitious materials, in particular to a multi-element solid waste based cementitious material, a preparation method and application, the multi-element solid waste based cementitious material comprises a multi-element solid waste main material, a composite excitation system, a crystal form regulating agent, a carbon sequestration modification component and a functional modification additive; the multi-element solid waste main material covers various conventional and refractory solid wastes, and the red mud is subjected to dealkalization treatment; the composite excitation system is of an inorganic-organic synergistic type; the crystal form regulating agent directionally induces the hydration product to form an interlaced structure; the carbon sequestration modified component is a compound; the functional modification additive is compounded by graphene oxide and polyether amine, and all the components cooperate to guarantee the performance of the material. The solid waste utilization rate is increased, and the environmental protection pressure and carbon emission are reduced; the composite excitation system guarantees stable strength, the crystal form regulator optimizes the structure to improve durability, the carbon sequestration component realizes carbon sequestration, and the composite excitation system has both environmental protection and economic benefits and meets the low-carbon development demand.

The utility model relates to the technical field of dust ash treatment, especially to a high-zinc dust ash dealkalization zinc enrichment treatment device, when using, granular dust ash is poured into the box and is carried out the crushing operation to the dust ash through the crushing assembly, the dust ash after crushing enters the inside of the box, the inside of the box is provided with the pickling solution and carries out the dealkalization assembly to the dust ash, after the operation is finished, the dust ash solution enters the centrifuge and carries out the solid -liquid separation, improves the processing efficiency, including bottom plate, centrifuge and box, the bottom plate top end is installed with centrifuge and box, still includes crushing assembly and dealkalization assembly, the inside of box is installed with crushing assembly and dealkalization assembly, the dealkalization assembly is linked with centrifuge input end.

The application relates to a modifier for the inner surface of a glass bottle and a use method thereof, characterized by comprising the following steps: (1) inorganic dealkalizing agents and liquid dispersion medium are mixed according to a mass-volume ratio of 25-50:1 to form a suspension or a solution, thereby forming the modifier; (2) during the initial mold pre-blowing stage and the final mold blowing stage, the modifier is atomized and sprayed into the inner cavity of a glass blank being blow-molded, and the modifier is sprayed while blow-molding gas is blown; the spraying amount of the modifier is 3-40 mg / dm 2 of the inner surface of the glass; (3) after the molded glass bottle is annealed, the glass bottle is cleaned, and a glass bottle product with a greatly reduced content of alkali metal ions in the inner surface is obtained. The application has the following advantages: the dealkalizing agent does not contain a sulfur group and an ammonium group, no pollutants are generated, and the strict requirements of high-end and green packaging are met; a new dealkalization process of a "blow-blow" molding composite inner surface modification is developed, the surface modification and the molding process are completed synchronously, the production efficiency and the energy utilization rate are significantly improved, the modification effect is excellent, and the chemical stability of the glass is significantly improved.

The invention relates to the technical field of catalyst preparation, and provides a catalyst with dealkalized red mud as a carrier and a preparation method and application thereof. The catalyst comprises a carrier dealkalized red mud and a composite metal oxide loaded on the carrier; the composite metal oxide is prepared from Fe2O3, K2O, CeO2, WO3, MoO3, MgO, Gd2O3 and BaO. The catalyst provided by the invention takes the aluminum industrial waste red mud as the carrier, the raw materials are green, environment-friendly and easily available, the catalyst preparation process is simple, the cost is lower, and the catalyst has the characteristics of high selectivity and short reaction induction period when being used for preparing styrene by ethylbenzene dehydrogenation.

The invention discloses a lithium slag dealkalization treatment agent and a lithium slag building material resource utilization method. The lithium slag dealkalization treatment agent comprises the following raw materials in parts by weight: 50-80 parts of sodium hydroxide, 30-50 parts of water glass, 5-15 parts of a polycarboxylate superplasticizer and 10-20 parts of calcium carbonate. The method has the advantage of environmental protection, and solves the problems that when existing lithium slag is used for building material resource utilization, waste lithium slag cannot be conveniently prepared into a high-strength and high-heat-preservation building material, and if the lithium slag building material is insufficient in strength, cannot be used for a bearing structure or a high-load scene and only can be used for a low-strength filling material or a non-structural component, the economic value of the lithium slag building material is greatly reduced; if the thermal insulation performance is poor, the energy-saving building standard is difficult to meet, and the competitiveness is lacked in scenes needing thermal insulation and cold insulation such as walls or roofs.

The invention relates to the technical field of inorganic pigments, and discloses a high-temperature yellowish-brown inorganic pigment and a preparation method, system and application of the high-temperature yellowish-brown inorganic pigment. Iron minerals are enriched through 3.0 T high field intensity magnetic separation, and Fe2O3gt is obtained; 70% of purification powder; mixing the powder with zinc oxide and chromic oxide according to a specific ratio of 60: 25: 15, and calcining at a high temperature of 1180-1200 DEG C to promote generation of stable hue; and finally, carrying out air jet pulverization to obtain a superfine product. The red mud is successfully converted into the high-performance high-temperature yellow-brown inorganic pigment through a combined process of deep dealkalization, high-field-intensity magnetic separation, a specific formula and high-temperature synthesis, the product is pure in color development and excellent in high-temperature stability, and a new way is provided for high-value-added utilization of the red mud.

The invention relates to a method for predicting the dealkalization amount of float glass, which comprises the following steps of: collecting historical process data of a float glass production line from a tin bath to the tail end of an annealing furnace and the dealkalization amount of each position and orientation of the glass to form a data set D1; performing preprocessing and normalization processing on the data set D1 to form a data set D2; inputting the data set D2 into a plurality of established models for pre-training, and determining an optimization model; performing feature screening on parameters of dealkalization positions of plates in glass production to obtain an optimal feature subset; and inputting the optimal feature subset into the optimization model, optimizing parameters of the model through Bayesian optimization, and predicting the dealkalization amount. According to the method, the historical process data of the float glass production line from the tin bath to the tail end of the annealing furnace and the dealkalization amount of each position and orientation of the glass are collected, the model is selected, and then the model parameters are subjected to Bayesian optimization, so that the accuracy of predicting the dealkalization amount of the production line is improved.

The application provides a red mud-based artificial soil and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing red mud, a calcium source and a sodium aluminate solution to obtain a raw slurry; (2) performing a first hydrothermal reaction on the obtained raw slurry to prepare a first clinker slurry, and obtaining a dealkalized red mud after first solid-liquid separation; (3) mixing the dealkalized red mud, detoxified fly ash and water to perform a second hydrothermal reaction, and obtaining a second clinker slurry; (4) sequentially performing second solid-liquid separation and washing on the obtained second clinker slurry to obtain a soil matrix; and (5) mixing the obtained soil matrix with organic matter and culturing to obtain the red mud-based artificial soil. The first hydrothermal reaction is used for dealkalizing the red mud and recovering alkali, the second hydrothermal reaction is used for solidifying active alkali in the red mud, then the introduction of organic matter increases the content of effective nutrients in the artificial soil and forms a granular structure, and finally the red mud-based artificial soil with good performance is prepared.