447 results about "Red mud" patented technology

The invention discloses a cementing material for a solid waste-based road of a coal-fired power plant and a preparation method of the cementing material. The cementing material mainly comprises a cementing component, an alkali-activated component and a reinforcing component, the gelling component is a mixture of coal-fired power plant fly ash and furnace slag; the alkali-activated component is a mixture of alkali residues, red mud, blast furnace slag and coal-fired power plant desulfurized gypsum; the reinforcing component is rice hull ash or peanut hull ash. The mass ratio of the gelling component to the alkali-activated component is (4 / 1)-(10 / 1); and the addition amount of the reinforcing component is 1-3% of that of the main body material. The coal-fired power plant solid waste fly ash, the furnace slag and the desulfurized gypsum are used as main bodies, a small amount of other industrial solid waste is added, and the cementing material belongs to a full-solid-waste low-carbon cementing material and can be applied to a road base, a subbase or a base layer. The invention has the characteristics of low carbon emission, high solid waste consumption, simple production process and strong pavement performance, and in addition, the invention has a good stabilization effect on the problem that part of solid waste heavy metals and sulfate ions in a coal-fired power plant exceed the standard.

The invention relates to the technical field of cement materials, in particular to a red-mud-containing steel slag composite cementing material and a preparation method thereof.The method comprises the steps that red mud, slag, steel slag, desulfurized gypsum and sulphoaluminate cement clinker are subjected to dry mixing to obtain an initial mixture; determining whether the excitation capability of the potential hydration activity reaches the standard or not based on the alkaline matching index, and adjusting the weight part of the sulphoaluminate cement clinker; adding a composite exciting agent to obtain activated slurry; determining whether the dispersion effect of the flocculation structure of the initial mixture is qualified or not based on the dispersion index of the flocculation structure, and adjusting the ball milling rotating speed; adding a polymer emulsion to obtain an initial composite cementing material; determining whether the synergistic enhancement effect of the polymer emulsion and the activated slurry is qualified or not based on the synergistic enhancement index, and adjusting the dripping rate of the polymer emulsion; the steel slag composite cementing material containing the red mud is obtained. The preparation stability of the red mud-containing steel slag composite cementing material is improved.

The invention belongs to the technical field of solid waste concrete, and discloses fireproof sound-insulation heat-preservation light-weight high-strength all-solid waste concrete and a preparation method thereof.The fireproof sound-insulation heat-preservation light-weight high-strength all-solid waste concrete is prepared from an all-solid waste fireproof cementing material, all-solid waste light aggregate, water and a functional additive; the all-solid-waste fireproof cementing material comprises an alkaline activator component and an active powder component, the alkaline activator component comprises red mud and carbide slag in a mass ratio of (1.5-2.5): 1, and the active powder component comprises granulated blast furnace slag and low-temperature activated calcined coal gangue powder in a mass ratio of (1.0-1.8): 1; the all-solid-waste lightweight aggregate comprises coarse aggregate and fine aggregate in a mass ratio of (1-1.5): 1, wherein both the coarse aggregate and the fine aggregate comprise high-temperature expanded and roasted coal gangue lightweight aggregate; wherein the low-temperature activated and calcined coal gangue powder is obtained by performing gradient temperature control calcination on coal gangue at 650-800 DEG C and then grinding the coal gangue until the specific surface area is greater than or equal to 500m < 2 > / kg; the high-temperature expanded and roasted coal gangue lightweight aggregate is obtained by roasting and expanding coal gangue at 1100-1300 DEG C and then screening and grading.

The invention discloses a red-mud-based multi-element solid waste cementing material as well as a preparation method and application thereof, and belongs to the technical field of building materials. The red-mud-based multi-element solid waste cementing material comprises the following components in parts by mass: 30-40 parts of red mud, 5-15 parts of fly ash, 10-20 parts of superfine slag powder, 30 parts of Portland cement, 4 parts of dihydrate gypsum and 2-25 parts of an alkali activator, alkaline components of the red mud are utilized to excite potential activity of the superfine slag powder and the fly ash, the additional alkaline activator excites potential activity in the red mud, and meanwhile, several industrial solid wastes and the Portland cement generate gel substances such as hydrated aluminosilicate under the synergistic effect, so that the mechanical property of the cement is improved; the building material meeting the strength requirement is provided while a large amount of red mud is consumed.

The invention belongs to the technical field of industrial solid waste resource recycling, and discloses a nano composite filling material based on in-situ acid-base mutual modification enhancement and application thereof. According to the nano composite filling material, the alkalinity of the red mud and the acidity of the desulfurized gypsum are used for neutralization, the alkalinity of a system is reduced, a synergistic reaction is excited, a large number of ettringite crystals playing a key enhancing role are generated under the regulation and control of a nano material, and the ettringite crystals and a geopolymer form an interpenetrating network structure. The obtained slurry is low-viscosity and high-fluidity Newtonian fluid (diffusivity gt and 250 mm), the 7-day strength is larger than 2.0 MPa, the pH value is 7-9, and the fluorine ion concentration is lt; and the leaching of heavy metal ions is qualified, and the method is environment-friendly and safe. Efficient resource utilization of the red mud and the desulfurized gypsum is achieved, and the method is simple in process, low in cost and especially suitable for mine filling and engineering backfilling.

The invention provides an environment-friendly sludge curing stabilizer and a preparation method thereof, and the environment-friendly sludge curing stabilizer comprises the following components in parts by weight: 10-25 parts of modified aggregate; 60-70 parts of a cementing agent; 5-30 parts of a water absorbent; the modified aggregate is formed by mixing silica fume and steel slag particles, the cementing agent is composed of slag, fly ash and bentonite, and the water absorbing material is composed of semi-hydrated phosphogypsum, quick lime and red mud; the curing stabilizer is composed of modified aggregate, a cementing agent and a water absorbing material. The environment-friendly sludge curing stabilizer prepared by the invention is used for treating sludge, the water content in 3d is reduced by 80% or more, and the compressive strength exceeds 3MPa; the water content within 14 days is reduced by 90% or above, the compressive strength can reach 6 MPa or above, the compressive strength exceeds the strength grade requirement of a roadbed material, meanwhile, the leaching concentration of heavy metal in the sludge is reduced by 95% or above, the sludge can be used as a building material for resource utilization, and the method has important significance on resource utilization, land occupation reduction and environmental pollution reduction. Wide popularization and application prospects are realized.

Ultrafast flash evaporation joule heating synthesis methods and systems, more particularly, ultrafast synthesis methods for recovering metals from ores, fly ash, and bauxite residue (red mud).

The invention belongs to the technical field of metallurgy, and discloses a hydrogen reduction dissolution method for bauxite. Comprising the following steps: mixing bauxite and circulating mother liquor to form raw ore pulp, adding a reducing agent, and performing Bayer process reduction dissolution; the reducing agent is hydrogen. According to the method, impurity-free and low-energy-consumption efficient dissolution is realized by introducing the gas-phase reducing agent hydrogen, red mud discharge is reduced from the source, and the recovery rate of valuable components is increased.

The invention provides a dry red mud argillization device and argillization method. The dry red mud argillization device comprises an argillization bin and a stirring tank A, the argillization bin is mounted on the ground through a bracket, and the bottom of the argillization bin is higher than the top surface of the stirring tank A; a discharging platform is arranged beside the argillization bin; the left side wall and the right side wall in the argillization bin are inclined planes which are inclined from outside to inside and extend downwards, the front side wall and the rear side wall in the argillization bin are vertical planes, the bottom surface of the argillization bin is a horizontal plane, a stirring groove in the front-back direction is formed in the middle of the bottom surface, and a horizontal spiral stirrer is arranged in the stirring groove; a sealing cover is arranged at the top of the stirring tank A, a stirring mechanism is arranged in the stirring tank A, and a water inlet pipe in the clockwise tangential direction is arranged on the lower portion of the side wall of the stirring tank A; an outlet of the stirring tank is connected with a sludge discharge tank; the tail end of the bottom surface of the sludge discharge tank penetrates through a sealing cover through a discharge nozzle and enters the stirring tank A; according to the invention, dry red mud can be conveniently and rapidly converted into red mud slurrying slurry, and the prepared slurrying slurry has good fluidity and fine granularity.

The invention relates to a method for preparing sodium aluminate and co-producing flame-retardant grade aluminum hydroxide from secondary aluminum ash, and belongs to the technical field of solid waste resource utilization. The method comprises the following steps: proportioning secondary aluminum ash, bauxite, sodium carbonate and bluestone according to a specific ratio, ball-milling and mixing, and calcining at a high temperature to obtain a sodium aluminate clinker; stirring and leaching the clinker and the leaching solution under specific conditions to obtain a sodium aluminate crude solution and red mud slag; adding an impurity removal agent into the sodium aluminate crude liquid in stages, carrying out normal-pressure and high-temperature stirring reaction, and carrying out ultrasonic-assisted treatment to obtain sodium aluminate fine liquid; adding a seed crystal into the sodium aluminate fine liquid, cooling step by step under a specific stirring condition for decomposition, and after decomposition, carrying out ultrasonic washing, wet grinding, drying and grading treatment on an aluminum hydroxide filter cake to obtain flame-retardant grade aluminum hydroxide; and concentrating the sodium aluminate fine liquid, desalting, cooling, drying and crushing to obtain sodium aluminate solid powder. According to the invention, high-valued utilization of the secondary aluminum ash is realized, the obtained flame-retardant grade aluminum hydroxide has high whiteness, controllable granularity and high purity of sodium aluminate, and is suitable for industrial production.

The invention relates to the technical field of solid waste treatment, in particular to a zeolite-based porous adsorption material and a preparation method thereof. The zeolite-based porous adsorption material is prepared from light particles and alkali liquor through a zeolitization reaction, and the light particles are prepared from the following raw materials in parts by mass: 30-60 parts of regenerated micro powder, 5-15 parts of red mud, 5-15 parts of glass powder, 10-40 parts of solid waste powder and 5-15 parts of a foaming agent; the regenerated micro powder is cement-based construction waste regenerated micro powder, and the solid waste powder comprises one or more of fly ash, coal gangue and fine coal gasification slag; the foaming agent comprises charcoal and / or rice hull ash. The multi-solid-waste zeolite-based porous adsorption light particles with excellent performance and good economic and environment-friendly benefits are prepared by taking the construction waste regenerated micro powder as a main raw material and synergistically using various solid wastes and the foaming agent.

This invention discloses a method for extracting aluminum from fly ash, red mud, and coal gangue and preparing ferrosilicon alloy, belonging to the field of solid waste resource comprehensive utilization technology. The key technical points include: raw material pretreatment, material mixing, roasting reaction, alkali dissolution carbon treatment, and separation and purification steps. Coal gangue is used as a carbonaceous reducing agent, mixed with fly ash, red mud, or iron-containing powder in a specific ratio, roasted under an inert atmosphere or vacuum environment, and then aluminum hydroxide is extracted by alkali dissolution carbon. Finally, ferrosilicon alloy and corresponding byproducts are obtained by wet magnetic separation. This invention achieves synergistic high-value utilization of multiple industrial solid wastes, reduces the environmental pressure of solid waste storage, and has the advantages of short process, low energy consumption, low cost, and high product purity, making it suitable for large-scale industrial applications.

The invention relates to the technical field of solid waste harmless and recycling equipment, in particular to a gradient temperature pyrolysis-melting vitrification integrated treatment device and process for red mud. According to the device, an electromagnetic heating rotary kiln pyrolysis section and an electrode melting section are directly coupled with a material transfer device through high-temperature atmosphere isolation. The process comprises the following steps: granulating red mud, a reducing agent and a flux, feeding into a rotary kiln of which the temperature is accurately controlled by multiple groups of electromagnetic induction coils in a partitioned manner, and sequentially completing dehydration, selective reduction and iron particle polymerization to produce gt; high-temperature pyrolysis slag at 1000 DEG C; the pyrolysis slag directly falls into an electric melting pool to complete melting and iron-slag liquid phase separation under absolute isolation of reducing atmosphere and oxidizing atmosphere by the device, and pig iron and a stable glass body are respectively obtained. Through the design of'hot slag direct melting 'and'energy closed loop', the problems of high energy consumption and complex flow of the traditional process are solved, and efficient recovery of iron resources in the red mud and thorough harmless and high-valued utilization of the residues are realized.

The application provides a quick-setting anti-freezing geopolymer pavement base material and a preparation method thereof, and belongs to the technical field of geopolymer materials. The application takes red mud and titanium white slag as precursor materials, takes carbide slag as an alkali activator, and simultaneously adds anti-freezing reinforcing materials compounded by white mud, ceramic powder and brick powder. The geopolymer pavement base material is formed by compounding multiple components, fully utilizes multiple high-alkaline and silicon-aluminum-rich solid waste resources, has the comprehensive advantages of low carbon, environmental protection, low cost, short construction period, excellent anti-freezing performance and the like, breaks through the technical bottlenecks of slow low-temperature setting and poor durability of the pavement base material in cold regions, and is suitable for highway, municipal road and border road engineering in high-cold regions. The application has important engineering significance and popularization value for green traffic infrastructure construction in cold regions.

The invention discloses a solid-waste-based dredged sludge high-strength curing agent, a preparation method and application, and relates to the technical field of dredged sludge curing utilization, the solid-waste-based dredged sludge high-strength curing agent comprises 5-30% of coal gangue micro powder, 10-70% of slag micro powder, 5-20% of red mud micro powder, 5-25% of desulfurized gypsum micro powder, 3-30% of an activator, and 1-15% of an inorganic reinforcing agent. The curing agent is low in cost and wide in application prospect, solid waste resource utilization can be achieved, a new green sustainable development mode is constructed, the activity of the solid waste and dredged sludge is improved by adding the activating agent, curing of the dredged sludge is accelerated, and the strength of a cured body is improved by adding the inorganic reinforcing agent.

The application relates to an aerated concrete prepared from granite waste rock powder and a preparation method thereof. The aerated concrete of the application takes granite waste rock powder (skeleton effect), calcium carbide slag (calcic material), clay (sintering promotion), red mud (gel filling) and coal gangue (siliceous material) as core raw materials, replaces traditional natural sandstone and lime, realizes industrial solid waste resource utilization, conforms to the development direction of green building materials, and significantly reduces the dependence on natural resources.

5 Disclosed is a process for capturing multi-gas emissions. The process comprises passing multi-gas emissions through a reactor unit, spraying any one of sodium hydroxide, fly ash, fly ash-slaked / quick lime mixture, fly ash- steelmaking residue mixture, slaked lime- steelmaking residue mixture, red mud and red mud-fly ash mixture, over the multi-gas emissions in the reactor unit; and capturing water droplets coming along the multi-10 emissions using a demister unit.

The invention relates to the technical field of roadbed slope protection, discloses a roadbed slope protection composition based on solid waste-geopolymer and a construction method of the roadbed slope protection composition, and aims to solve the problems of high carbon emission, low solid waste utilization rate, strong ecological destructiveness and weak disaster resistance of a traditional roadbed slope protection material. According to the invention, fly ash, desulfurized gypsum, mineral powder and pretreated red mud are taken as core raw materials, and are matched with a geopolymer activator and a heavy metal stabilizer to form a cement-free flow state system with a high solid waste mixing ratio; during construction, a casing pipe is not needed, through the drilling-layered pouring technology, the solidification body is naturally attached to soil through the fluidity, a multi-deformation solidification structure without rigid cutting is formed, the anti-scouring and anti-collapse capacity of a roadbed slope can be enhanced through the structure, damage of natural disasters such as flood to a roadbed can be effectively resisted, and the construction period is shortened. Meanwhile, the ecological compatibility of the mechanical property and the plant root system penetration rate is considered.

The invention provides a formula design method and device and a computer readable storage medium, and belongs to the technical field of cementing materials. The method comprises the following steps: acquiring an input value, wherein the input value is one of formula data and performance data of the cementing material; the performance data is 3d compressive strength CS, and the formula data is a calcination temperature F, and a content correction value x of the calcium solid waste, a content correction value y of the phosphogypsum and a content correction value z of the red mud in the raw materials; according to a first formula and the input value, an output value is obtained through prediction, and the output value is the other one of the formula data and the performance data; wherein the formula I is as follows: CS = K * (45.57 to 5.31 * A + 4.52 * B + 16.45 * C + 3.36 * AB + 0.0875 * AC-4. 45 * BC-28.26 * A-4. 80 * B-9. 35 * C + 0.9375 * AB-17.19 * AC + 4.83 * AB). The invention aims to provide the prediction method which can predict the relationship between the formula and the performance expression of the cementing material and is beneficial to reducing the difficulty and the cost of formula design.

The invention relates to the technical field of solid waste resource utilization and geopolymer grouting material preparation, and discloses an all-solid-waste-based geopolymer grouting material and a preparation method thereof. The all-solid-waste-based geopolymer grouting material comprises the following components in parts by weight: 60-70 parts of slag, 20-30 parts of red mud, 10 parts of silica fume, 15.6-28 parts of an alkali activator, 0.8 part of a water reducing agent and 93.12-103.04 parts of water, wherein the total amount of the slag, the red mud and the silica fume is 100 parts. The all-solid-waste-based geopolymer grouting material provided by the invention has the characteristics of low price and easy acquisition of raw materials, simplicity and convenience in preparation, good working performance, high strength and the like. Solid waste resources are recycled, the use of cement is reduced, and good environment-friendly and economic benefits are achieved.

The invention provides a preparation method of a fluorine removal agent based on modified red mud, which comprises the following steps: modifying industrial red mud, adding a certain amount of activated carbon, and mixing. The method for modifying the industrial red mud comprises the following steps: drying the industrial red mud and limestone until free water does not exist, and respectively grinding and sieving; mixing the ground industrial red mud and limestone according to a certain proportion, and adding a small amount of purified water to infiltrate to obtain a mixture of the industrial red mud and the limestone; adding an activating agent into the mixture for acidification activation, adjusting the pH value to be less than 1, stirring and standing to obtain an activated mixture; and evaporating the activated mixture to dryness, and calcining to obtain the modified red mud and limestone mixture. The industrial red mud is used as the raw material, the process is simple, the cost is low, waste resources are recycled, and the method has a good application prospect.

The invention relates to the technical field of red mud recycling, in particular to a method for improving magnetic separation iron extraction efficiency by modifying red mud through industrial kiln tail gas CO2. The invention discloses a method for improving magnetic separation iron extraction efficiency by using industrial kiln tail gas CO2 modified red mud, which comprises the following steps: collecting tail gas discharged in the calcining process of an industrial kiln, and sequentially carrying out dust removal, desulfurization and compression to obtain compressed tail gas; the method comprises the following steps: mixing red mud with water, introducing compressed tail gas, and carrying out carbonization reaction at 60-80 DEG C to obtain carbonized modified red mud slurry; and the carbonized modified red mud slurry is placed in a high-gradient magnetic separator for magnetic separation, and refined iron powder is obtained. By means of the method, resource utilization of industrial kiln tail gas CO2 and efficient quality improvement of the red mud can be achieved, a dense alkali film wrapping hematite in the red mud is stripped, the hematite crystal structure is optimized, and meanwhile the iron extraction cost of the red mud and carbon emission of an industrial kiln are reduced.

This invention discloses a gasification reduction ironmaking system and method for the synergistic resource utilization of solid and hazardous waste and red mud. The system includes a raw material pretreatment unit, a pyrolysis gasification and purification unit, a gasification reduction ironmaking unit, and a waste heat comprehensive utilization unit. After pretreatment, the solid and hazardous waste enters a multi-stage gasifier for pyrolysis and gasification reactions. Combined with a two-stage gas-solid separation and return structure, the gas yield and carbon conversion rate are improved. The gasified gas enters the reduction furnace and pre-reduction furnace for cascade reduction, realizing the efficient recovery of iron resources from red mud. The waste heat comprehensive utilization unit performs multi-stage heat exchange on the tail gas and uses it for the preparation of gasifying agents, realizing closed-loop heat utilization. This invention constructs a multi-cycle system of gas, heat, and materials, realizing the recycling of gas, heat, and materials. It not only improves the resource utilization rate but also obtains tail gas rich in methane, achieving the synergistic and efficient resource utilization of solid and hazardous waste and red mud.

The application provides a method for full resource recycling of Bayer process red mud, valuable elements such as aluminum, iron, calcium, silicon and gallium in the red mud are leached into a solution, main elements (aluminum, iron, calcium and silicon) are separated first to obtain industrial products such as iron ore powder, silica gel, gypsum and water purifying agent, and gallium elements are enriched, gallium is separated and extracted from the solution through extraction, the purpose of full resource recycling of the Bayer process red mud is achieved, high concentration enrichment of the gallium elements is realized, valuable elements are not wasted, and the method has the advantages of less interference factors, high extraction efficiency, saved extraction agent and back extraction agent.

This invention discloses a composite pellet binder containing red mud and its application, belonging to the technical field of binders for metallurgical pelleting. The binder uses red mud, a waste residue from the alumina industry, as the main raw material, combined with functional additives. By mass percentage, red mud accounts for 73%~87%, with the remainder being functional additives. This invention, through multi-component synergistic formulation, solves the industry pain points of poor compatibility with strong alkalinity and insufficient self-binding performance of red mud. The prepared binder can directly replace bentonite used in pelleting, exhibiting superior pelletizing performance at the same addition amount. Simultaneously, it can increase the iron content of pellets by 0.248~0.62 percentage points, reduce ironmaking waste emissions, and possess significant environmental and economic benefits. It is compatible with existing pelleting production processes, requires no new equipment, and is easy to industrialize.

The invention discloses a preparation method of an open-pore geopolymer. The preparation method comprises the following steps: (a) drying, crushing and sieving red mud and fly ash; (b) preparing an alkali activator; (c) mixing the red mud and the powder marl obtained in the step (a) in proportion to obtain a mixture, pouring the mixture into the alkali activator prepared in the step (b), and stirring with a stirrer to form a first mixture; (d) adding a surfactant into the first mixture, and continuously stirring by using the stirrer to form a second mixture; (e) adding a foaming agent into the second mixture, and continuously stirring by using the stirrer to form slurry; (f) the slurry is subjected to die filling, standing and curing in sequence, and the open-pore geopolymer is obtained.According to the method, the red mud and the fly ash are compounded according to the specific proportion, a self-cementation geopolymer is formed through an alkali excitation reaction, and the problem of absorption of the two kinds of solid waste is synchronously solved.

The application relates to a method for preparing RM / Ni(OH)2 nanometer material based on red mud and application, and aims to utilize solid waste red mud (RM), slowly hydrolyze Na2O and CaO in the RM, take metal oxides such as Fe2O3, Al2O3 and TiO2 as supporting materials, in-situ grow Ni(OH)2 nanometer sheets on the RM surface through a one-step hydrothermal method, and prepare RM / Ni(OH)2 nanometer adsorption material. The adsorbent RM / Ni(OH)2 has the characteristics of high adsorption capacity, low cost and simple manufacturing process, can effectively adsorb dye wastewater, realizes resource utilization of the RM, provides a new idea for water dye pollution treatment and RM resource utilization, combines the advantages of high specific surface area and rich surface functional groups of the red mud and Ni(OH)2, and makes up for the shortage of limited adsorption capacity of the two. The raw material source is rich, the RM is not subjected to traditional acid-base treatment in the use process, secondary pollution caused by acid-base waste liquid to the environment is reduced, and the true "waste treatment with waste" is realized.

This invention belongs to the field of magnetic separation technology, and in particular to a device for the coordinated mineralization and magnetic separation of iron in red mud. The lower inner side of the sand mill shell is provided with an arc-shaped concave cavity adapted to a cylindrical grinding rotor. The cylindrical grinding rotor is set in the arc-shaped concave cavity by rotation. Its outer cylindrical surface and the inner wall of the sand mill shell form a non-equidistant grinding chamber with left and right symmetry and a larger upper and smaller lower spacing. The minimum gap between the chambers is located in the bottom area of ​​the arc-shaped concave cavity. An overflow port is opened on the side wall of the sand mill shell in the downstream direction of the slurry flow path. A belt-type iron separator is used to magnetically separate the slurry discharged from the overflow port to remove iron. The slurry after magnetic separation is returned to the inside of the sand mill shell for circulation and re-grinding. The mixture after one grinding is subjected to preliminary magnetic separation to remove iron ore that can be magnetically adsorbed. Then the remaining mixture is circulated again. By diverting the iron-containing particles during the circulation process, it is ground to the target 1μm faster.

The application discloses a solid waste-based self-compacting super-waterproof backfill material and a preparation method thereof, and the solid waste-based self-compacting super-waterproof backfill material is formed by mixing and stirring slag and a solid waste-based high-impervious curing agent and water; the solid waste-based high-impervious curing agent comprises steel slag powder, granulated blast furnace slag, fly ash, red mud, industrial by-product gypsum, hydrophobic organic acid salt, alkali metal lactate, high-performance polycarboxylate water reducer and dispersant. Physical-chemical reactions occur in the mixing and stirring, a large amount of cementing bodies are generated in the curing process, the inter-particle pores of soil are filled, the structure is compacted, the strength is high, and the imperviousness is good; the application focuses on the solid waste resource utilization demand, has the advantages of high solid waste utilization rate, low economic cost, high fluidity, good waterproof performance and the like; and the application changes the need of adding cement clinker in traditional backfill materials, and is more economical and environment-friendly.