370 results about "Tailings" patented technology

The invention relates to an anorthite material and a preparation method thereof. The adopted technical proposal comprises the following steps of: according to (ZL200510019664.3) patent technology, namely a method for preparing titanium and a titanium alloy by utilizing titanium-containing furnace slag, taking molten tailings which is extracted with the titanium alloy as a raw material, adding 20 to 50 weight percent of silica, 0 to 60 weight percent of clay and 0 to 40 percent aedelforsite, and cooling a melt to obtain the anorthite material after the mixture is completely molten and a bath composition is uniform; or taking cold tailings extracted with the titanium alloy as the raw material, adding 20 to 50 weight percent of the silica, 0 to 60 weight percent of the clay and 0 to 40 percent the aedelforsite, carrying out mix grinding on the raw material and the admixture until the particle size is less than 0.1 mm, performing blank compression, and calcining the mixture at a temperature of between 1,200 and 1,400 DEG C to obtain the anorthite material. The method takes the tailings extracted with the titanium as the raw material, saves precious bauxite resources, has low cost, ensures that industrial residue is utilized with high added value, is environment-friendly and has simple process.

This invention discloses a method and system for controlling the leaching of residual leaching agents in ion-type rare earth leaching fields. A reaction-diffusion coupled kinetic model is established; initial parameters of the physicochemical properties of the tailings soil and the desorption rate constant are obtained; initial leaching conditions are set and substituted into the model to obtain the cation desorption rate of the leaching agent; combined with the leaching flow rate, a curve of cumulative desorption over time is obtained; the inflection point of the cumulative desorption in the curve is identified; and the leaching intensity and leaching method during the leaching process are controlled; the controlled leaching conditions are substituted back into the model to determine the next inflection point of the cumulative desorption in the curve, and this process is repeated until the control termination condition is reached. By using the method and system of this invention, the physicochemical properties of the ore soil are tested, the cation desorption rate of the residual leaching agent is predicted, and then the leaching process is controlled based on the predicted cation desorption rate, thereby improving leaching efficiency and reducing water consumption.

The application provides a method for vegetation restoration of mining waste land, and relates to the field of mine vegetation restoration.The method comprises the following steps: (1) waste rock tailings treatment; (2) landform modification; (3) slope treatment; (4) soil improvement; (5) vegetation restoration; the application performs landform modification on waste rock tailings treated in the mining rough stone yard, and performs vegetation restoration on the soil improved in the mining rough stone yard and the slope, improves the soil micro-ecological environment, rapidly increases the vegetation coverage and abundance; combined with water conservancy measures, external water sources can be purified, not only the ecological system stability of the mining area is improved, and the environmental pollution of the mining area is reduced, but also the land utilization rate of the mining rough stone yard is improved.

The application discloses a preparation device and method of a coal gangue soil conditioner, relates to the field of tailing utilization of solid waste utilization, and comprises a supporting assembly, the supporting assembly comprises an operation table, a wind screen assembly is arranged on the top of the operation table, and a mixing assembly and a fermentation assembly are arranged on the outer side of the operation table; when the application is used, a driving motor is started, the output shaft of the driving motor is rotated, the double-shaft gear is engaged to drive the driven gear ring to rotate, the coal gangue raw materials in the ball mill barrel are continuously rotated to be ground into powder, the ground coal gangue is discharged from the feeding port and then conveyed into the inside of the wind screen chamber, the coal gangue powder is conveyed downwards along the inclined discharging slide plate to the area close to the feeding pipeline, an air blower is started, the airflow generated by the air blower blows the coal powder particles forward, the coal powder particles pass through the screen and enter the inside of the feeding pipeline, and the remaining materials can be taken out by opening the sealing plate, so that separation is realized.

This application belongs to the field of electrolytic manganese preparation technology, specifically providing a method for preparing electrolytic manganese from manganese carbonate ore through dry polishing pre-selection and multi-stage purification, including the following steps: a) crushing and screening the manganese carbonate ore to obtain ore of a first particle size; b) subjecting the ore of the first particle size to dry strong magnetic separation pre-selection and tailings removal to obtain pre-selected concentrate; c) grinding the pre-selected concentrate to obtain a grinding product of a second particle size; d) mixing the grinding product with water or return liquid for slurry treatment to obtain a slurry; e) mixing the slurry with sulfuric acid for chemical leaching to obtain a leaching slurry; f) subjecting the leaching slurry to multi-stage purification treatment to obtain a purified electrolyte; g) electrolyzing the purified electrolyte to obtain cathode electrolytic manganese. The electrolytic manganese obtained by this application has the advantages of high purity, low water load, and low reagent consumption.

The application discloses a kind of for tantalum niobium tailings in tin metal recovery's synergistic treatment system, specifically related to metallurgical solid waste resource utilization technical field, acoustic-electricity perception pre-agglomeration module exports pre-agglomeration probability index according to pre-agglomeration threshold value;Heat resistance chromatography module exports the temperature field and fluidized void fraction distribution of suspected agglomeration area;Inhibiting ingredient self-adapting module calculates inhibitor addition rate according to distribution;Wind material decoupling adjustment module exports decoupled wind speed and feed rate set value according to addition rate and bed pressure drop;Chain negative feedback blocking module detects pressure drop deviation to generate feedback correction, superimposed to wind speed set value and reversely adjust feed rate set value, while used to update pre-agglomeration threshold value;The application realizes the online identification of agglomeration precursor, accurate danger area precision inhibiting and the closed-loop cooperation of wind material decoupling, inhibits the nonlinear deterioration of coking loss flow, makes tin recovery rate keep stable when tailings fluctuation, and reduces inhibitor consumption and manual intervention.

This invention discloses an efficient separation and beneficiation method for scheelite, wolframite, and cassiterite in a tungsten-tin mixed concentrate, comprising the following steps: (1) pre-treatment by grinding, flotation desulfurization, and weak magnetic separation to remove iron from the tungsten-tin mixed concentrate to obtain weak magnetic tailings; (2) concentration and drying of the weak magnetic tailings obtained in step (1) followed by electrostatic separation to obtain electrostatic concentrate and electrostatic tailings; (3) stirring and slurry conditioning of the electrostatic concentrate obtained in step (2) followed by strong magnetic separation to obtain strong magnetic concentrate and strong magnetic tailings; stirring and slurry conditioning of the electrostatic tailings obtained in step (2) followed by scheelite upgrading flotation to obtain scheelite concentrate and scheelite flotation tailings. Based on the differences in conductivity, magnetism, and flotation properties of scheelite, wolframite, and cassiterite, this invention employs a “cassiterite / wolframite electrostatic separation-wolframite / cassiterite strong magnetic separation-scheelite upgrading flotation” process to achieve efficient separation of wolframite, scheelite, and cassiterite.

This application provides a system, method, electronic device, and storage medium for intelligent mineral processing, comprising: a conveying device that uniformly distributes and arranges the ore to be processed in a single layer before conveying it to a detection area; a primary processing device that collects the geometric and color distribution characteristics of the ore, thereby classifying the ore into easily processed and difficult-to-process types, and sending them to a first secondary processing channel or a second secondary processing channel respectively; the first secondary processing channel directly identifies the concentrate or tailings by recognizing the geometric and / or color distribution characteristics of the easily processed type of ore; the second secondary processing channel collects the image and spectral characteristics of the difficult-to-process type of ore, associates the image and spectral characteristics with the same target ore using the geometric characteristics as a spatial reference, fuses them to obtain fused features, and calculates the confidence level of the sorting action, thereby performing sorting. This application improves sorting efficiency and accuracy through hierarchical processing and multimodal association fusion based on geometric reference, and is particularly suitable for complex and difficult-to-process ores.

The application discloses a kind of weak magnetic mineral separation methods of magnetic seed circulating reinforced flocculation magnetic separation, raw material is broken to grinding ore to the fineness of-75µm content 60%-90%, ore powder is configured into ore pulp, 100-400 grams / ton of magnetic seed is added to ore pulp, at the speed of 700-1500rpm Realize selective flocculation, and the flocculation of ore pulp is given to high gradient magnetic separator, under the action of magnetic force, surface attachment magnetic seed's manganese mineral flocculation is selectively adsorbed to the surface of magnetic separation drum, and is collected after scraping plate, and it is manganese concentrate, and non-magnetic or weak magnetic gangue mineral is discharged as tailings with ore pulp flow, and high-grade manganese minerals are efficiently separated by using permanent magnet cylinder type magnetic separator to process manganese-loaded magnetic seed.The present application solves the problems of low recovery rate, complex process, poor recovery effect of micro-fine particles and high environmental risk faced by the current industry, significantly improves the manganese recovery rate and concentrate grade, and realizes the maximum utilization of manganese resources in tailings.

The application discloses a kind of high oxidation rate lead-zinc oxide ore aerated sulphidation flotation and tailings discharge process, belong to mineral processing technical field.The method includes the following steps: grinding to lead-zinc oxide ore raw ore, obtain slurry;Sodium sulfide is added to slurry, and under the condition of aerated stirring, sulphidation reaction is carried out, and sulphidation slurry is obtained;Collector and foaming agent are added to sulphidation slurry, and flotation is carried out, and lead concentrate and zinc concentrate are obtained.The application introduces forced aerated stirring in the sulphidation process, strengthens the mass transfer process among gas-liquid-solid three phases, promotes the generation of dense, stable lead sulfide film on the surface of lead oxide minerals, solves the problem of low sulphidation efficiency of traditional sulphidation process.The application is used to treat refractory lead-zinc oxide ore containing Pb 5.59%, Zn 44.02%, oxidation rate more than 90%, and closed-circuit test can obtain qualified lead concentrate with lead grade of 60.72% and lead recovery rate of 79.53%, while lead flotation tailings directly become zinc concentrate with zinc grade of 46.33% and zinc recovery rate of 98.41%, realizing efficient separation of lead and zinc and tailings discharge.

This invention discloses a special reinforcing steel fiber for all-solid waste concrete and its modification method, belonging to the field of building materials technology. The reinforcing steel fiber uses recycled steel fiber from automobile tires as the core raw material. Through a graded process of raw material pretreatment, dopamine coating, and ettringite deposition modification, a chemical bonding layer and a microstructure reinforcing layer are formed on the fiber surface, significantly improving its interfacial bonding performance with the all-solid waste concrete matrix. The suitable all-solid waste concrete system consists of granulated blast furnace slag powder, industrial by-product gypsum, alkaline industrial by-products, and iron tailings sand, achieving 100% solid waste utilization. When the modified steel fiber content is 1-2%, the 28-day compressive strength of the concrete increases by over 10%, and the flexural strength increases by over 100%, combining environmental friendliness and high performance, providing an innovative solution for solid waste resource utilization and building material upgrading.

The application provides a preparation method and application of a quick-membrane-attached sulfur autotrophic denitrification filler, and the specific steps of the preparation method are as follows: S1, mixing pyrite tailings slag, sulfur, calcium carbonate and sodium bicarbonate; S2, heating and rotating the material obtained in S1 in a rotary reaction kettle until the sulfur component is completely melted, stopping heating after the material is uniformly mixed, cooling, and continuously rotating the reaction kettle for granulation during the cooling process; S3, stopping the rotation of the reaction kettle in S2 when the material forming rate is more than 70%, and screening the material, so that the quick-membrane-attached sulfur autotrophic denitrification filler is obtained. The filler has a large specific surface area and high porosity, is beneficial to quick membrane-attachment, and can be successfully applied to wetland treatment.

The application relates to the field of concrete, and particularly discloses a kind of ultra-high performance concrete and a preparation method thereof. Each volume part of the ultra-high performance concrete comprises the following components by weight: 210-250 parts of water, 800-950 parts of cement, 150-250 parts of silica fume, 150-800 parts of quartz sand, 250-750 parts of graphite tailings, 200-300 parts of silica powder, 100-200 parts of steel fiber, and 10-100 parts of water reducing agent. The ultra-high performance concrete has good mechanical properties, electrical conductivity and self-sensing performance.

The application discloses a kind of mechanism sand tailings fine powder concrete mix proportion design method, and the design method of mechanism sand tailings fine powder content includes: S1, determine the initial proportion of cement and mechanism sand tailings fine powder in concrete mix proportion, add water and cement, mechanism sand tailings fine powder is mixed, and mixed material is obtained;S2, fill standard test container;S3, calculate the packing density of mixed material;S4, gradually reduce the amount of water, repeat S1-S3, obtain the closest packing density of cement and mechanism sand tailings fine powder initial proportion;S5, change the proportion of mechanism sand tailings fine powder, repeat S1-S4, obtain the closest packing density of different cement and mechanism sand tailings fine powder proportion, determine the mixing amount ratio of mechanism sand tailings fine powder in cement.The method can fully consider the filling effect of mechanism sand tailings fine powder in concrete cementing system, and more accurately control the mixing amount range of mechanism sand tailings fine powder in concrete.

A method for treating process water of a flotation arrangement, the flotation arrangement including a flotation arrangement including a mineral flotation line and a process water treatment arrangement for treating underflow of the of the mineral flotation line. The method includes the steps of a) dewatering underflow from the flotation in a gravitational solid-liquid separator; b) subjecting supernatant from step a) to cleaning flotation for collecting at least fine particles and residual flotation chemicals, for separating at least fine particles and residual flotation chemicals from the supernatant into cleaning flotation overflow, and for forming purified process water as cleaning flotation underflow; c) removing cleaning flotation overflow as tailings, and d) recirculating purified process water into the mineral flotation line.

This disclosure relates to the field of waste resource utilization technology, and in particular to a method and apparatus for preparing coal gangue blasting abrasive, as well as the coal gangue blasting abrasive itself. The method includes: feeding coal gangue tailings to a hydrocyclone for coal slime removal to obtain coarse-grained coal gangue; centrifuging the coarse-grained coal gangue to obtain dehydrated coal gangue; and feeding the dehydrated coal gangue into a hot air drying system for drying to obtain dried coal gangue blasting abrasive. Through targeted coal slime removal, the amount of dust generated during the blasting process of the coal gangue blasting abrasive can be reduced, improving the environment; processing coal gangue tailings into coal gangue blasting abrasive results in extremely low raw material costs, and the entire process allows for wastewater recycling without secondary pollution.

The utility model relates to iron tailings sand particle screening technical field discloses a dustproof iron tailings sand particle screening device, including base and fixed box, the top fixedly connected with fixed box of base, the inside of fixed box is provided with collecting box, the front end fixedly connected with handle of collecting box, the both sides fixedly connected with side plate of base top, the top between side plate fixedly connected with fixed frame, the both sides fixedly connected with fixed block of fixed frame front end, the rear end swing joint has dust cover of fixed frame top, this dustproof iron tailings sand particle screening device is set up with fixed frame, fixed block, dust cover, feed inlet, positioning buckle, and dust cover is turned to lower, and positioning buckle is buckled outside fixed block, and the feed inlet of dust cover can put into screen frame gravel, so that dust is not easy to fly everywhere when screening, solves the problem that dust is easy to fly everywhere in the screening process.

The present application relates to the technical field of mineral processing, and provides a siderite directional enrichment and separation integrated process, which comprises the following steps: ore pretreatment, ore slurry directional dispersion and selective flocculation regulation, batch flotation separation, product refining and wastewater recycling four links, each link is accurately matched based on mineral surface electrical property and adsorption characteristic parameters, the iron element grade of siderite after flotation can be increased by more than 15%, the highest recovery rate can reach 76.70%, the iron grade can be increased to 59.90% at most, the high-value recovery of low-grade multi-element symbiotic siderite is realized, and the tailing discharge amount is reduced by 15%; the wastewater is closed-loop recycled without external discharge, and the first-level requirement of the comprehensive wastewater discharge standard is met.

This invention provides a method for treating red mud, comprising the following steps: First, red mud slurry from an aluminum plant is fed into a red mud storage tank, filtered to obtain an alkaline solution and red mud filter cake. The alkaline solution is returned to the aluminum plant, and the red mud filter cake is mixed with additives to form a red mud mixture. Second, the red mud mixture is fed into an electromagnetic rotary kiln for calcination. Within the electromagnetic rotary kiln, from the inlet to the outlet, the temperature varies in different sections: the first section is 25-600℃, the second section is 600-800℃, the third and fourth sections are 800-1000℃, and the fifth section is below 100℃. Third, the output material from the electromagnetic rotary kiln is subjected to dry magnetic separation. The magnetic separation includes two stages: the first stage involves weak magnetic separation of the cooled material to obtain iron concentrate powder and the first tailings; the second stage involves strong magnetic separation of the first tailings to obtain middlings and tailings. The middlings are titanium dioxide, and the tailings are geopolymers. This invention achieves zero-emission standards for the entire production process, has low production investment costs, and is easily compatible with the Bayer process in China.

This application provides a beneficiation method for sulfur-associated zinc ore, relating to the field of mining and metallurgy. The raw sulfur-associated zinc ore is first ground and then pulped to obtain a slurry. The slurry undergoes a first sulfur roughing process to obtain a first sulfur roughing concentrate and a first sulfur roughing tailings. The first sulfur roughing concentrate is then subjected to a second grinding process followed by a first sulfur cleaning process to obtain a first sulfur concentrate. The first sulfur roughing tailings undergo a second sulfur roughing process to obtain a second sulfur roughing concentrate and a second sulfur roughing tailings. The second sulfur roughing concentrate undergoes a second sulfur cleaning process to obtain a second sulfur concentrate. The second sulfur roughing tailings undergo sulfur scavenging to obtain sulfur scavenging tailings. The sulfur scavenging tailings undergo sulfur-zinc roughing to obtain a sulfur-zinc rough concentrate and sulfur-zinc rough tailings. The sulfur-zinc rough concentrate undergoes a sulfur-zinc mixed cleaning process to obtain a sulfur-zinc mixed concentrate. The sulfur-zinc mixed concentrate undergoes magnetic separation to obtain a third sulfur concentrate and a zinc concentrate.

The application belongs to the technical field of soil improvement, and provides a carbon sequestration and soil improvement agent based on iron tailings sand and a preparation method thereof, which comprises the following steps: S1, grinding the iron tailings sand by using a ball mill and sieving to obtain iron tailings powder, and drying to constant weight; drying the biomass material naturally, crushing by using a crusher, sieving, obtaining biomass material powder, and drying to constant weight again; S2, uniformly mixing the biomass material and the iron tailings sand according to different proportions; S3, preparing the iron tailings sand-biochar composite material by using a one-step pyrolysis method under a set temperature condition, and preparing the soil improvement agent. The application provides an effective recycling way for reasonably treating large iron tailings sand, reduces the occupation of land resources by the tailings sand and possible environmental pollution and safety hazards; on the other hand, the application realizes the utilization of waste biomass material, and makes a positive contribution to solving the problem of soil degradation, realizing sustainable utilization of resources and promoting sustainable development of agriculture.

This invention relates to a flotation method for gasification ash residue, the flotation method comprising the following steps: (1) pretreating the gasification ash residue to obtain pretreated residue; (2) subjecting the pretreated residue obtained in step (1) to a first flotation to obtain a first rough concentrate and a first tailings; (3) subjecting the first rough concentrate obtained in step (2) to a second flotation to obtain a second rough concentrate and a second tailings; (4) subjecting the second rough concentrate obtained in step (3) to a third flotation to obtain a concentrate and a third tailings. The flotation method provided by this invention improves the surface characteristics of the gasification ash residue by pretreating it, while simultaneously improving the flotation process flow. By employing a specific flotation process, the flotation effect of the gasification ash residue is optimized, significantly improving the indicators of the obtained concentrate.

The application provides a recycling method and device of industrial tailings, and relates to the technical field of industrial tailings recycling. The method comprises the following steps: electrolytic manganese slag is mixed with lime or alkali liquor and stirred, ammonia gas is recovered by negative pressure to obtain pretreated manganese slag and ammonia water; shale is crushed, pulverized and aged to obtain aged shale material; water-quenched slag is mixed with coal gangue to obtain mixed auxiliary material; the three are mixed and stirred to form molding raw material, and the molding raw material is molded, dried and sintered at 950 DEG C to obtain manganese slag sintered porous brick. The device comprises an ammonia gas negative pressure recovery system, a stirring unit, a crushing and pulverizing unit, an aging bin, a molding machine, a drying kiln and a sintering kiln. The application removes ammonia nitrogen, reduces pollution, absorbs various industrial tailings, produces ammonia water as by-product, and realizes the recycling of the porous brick.

The application discloses a beneficiation method of low-grade tin ore by using magnetic separation and flotation. The beneficiation method of low-grade tin ore by using magnetic separation and flotation comprises the following steps: step (1), crushing and grinding the low-grade tin ore, using water as a leaching agent, and separating by a wet magnetic separator to obtain magnetic minerals and magnetic tailings; step (2), drying the magnetic tailings after the magnetic separation, and then placing the tailings in a flotation agent to perform a flotation treatment to obtain flotation minerals and flotation tailings; step (3), concentrating the flotation tailings after the flotation treatment to obtain concentrated tailings; and step (4), smelting the concentrated tailings to finally obtain tin metal, sulfide, silicate, oxide and impurities. The application combines the magnetic separation and the flotation to improve the ore separation efficiency and the recovery rate, the water is used as a leaching liquid in the magnetic separation process to reduce the cost, and no new impurities are introduced, and the flotation agent can reduce the surface tension of the tin ore to improve the leaching rate.

This invention provides a method and system for in-situ detection of lead-zinc tailings aggregates based on LIBS technology, relating to the field of mineral element detection. The method includes: optimizing and correcting the number of benchmark sampling points based on the detection complexity index of Q samples to obtain Q suitable sampling points; based on the sample sequence to be tested and the Q suitable sampling points, using LIBS technology to sequentially perform in-situ detection on the Q samples, outputting Q in-situ detection results. During the in-situ detection process, the number of suitable sampling points for subsequent samples is further optimized based on the consistency of historical detection results. This invention aims to solve the technical problem that existing detection methods typically use fixed rules, resulting in a difficulty in balancing detection efficiency and accuracy, and failing to meet the requirements of batch, on-site, and rapid detection in highway engineering. It can significantly improve the efficiency of in-situ detection of lead-zinc tailings aggregates while ensuring detection accuracy.

This application provides a two-step flocculation adaptive control method for tailings slurry based on FBRM online monitoring, relating to the field of tailings treatment technology in the mineral processing industry. The method includes: online monitoring of the original tailings slurry using focused beam reflection measurement under no-doping conditions to obtain the particle size baseline characteristics of the original slurry; adding a primary flocculant to obtain a first slurry, and monitoring the dynamic particle size characteristics of the flocs during the flocculation process in real time; based on the dynamic particle size characteristics of the first slurry, determining whether the first slurry has reached a ready state suitable for secondary flocculation according to a preset primary flocculation completion criterion; when the first slurry reaches the ready state, automatically initiating the addition of a secondary flocculant to obtain a second slurry, and providing real-time feedback on the particle size distribution change in the second slurry as a control signal to adaptively adjust the dosing rate of the secondary flocculant. This method can automatically adapt to changes in ore properties, solid content, and operating conditions, and has strong potential for widespread application.

This invention belongs to the field of mine backfilling engineering technology, and relates to a tailings cemented backfilling pipeline conveying resistance optimization mechanism. It includes a tailings cemented backfilling pipeline body and a base plate. A first hollow box is fixedly connected to the top of the tailings cemented backfilling pipeline body near the discharge end. A hollow disc is fixedly connected to the discharge end of the tailings cemented backfilling pipeline body. A T-shaped groove is formed in the center of the hollow disc, and a resistance optimization component is arranged in the center of the hollow disc. This invention, through the setting of the resistance optimization component, can regulate the flow area of ​​the slurry discharge inside the tailings cemented backfilling pipeline body, thereby dynamically matching different slurry concentrations, flow rates, and pipe operating conditions. This controls the discharge flow rate and establishes a reasonable back pressure inside the pipe, suppressing semi-hollow pipe flow and gas-slurry disturbance, regulating the overall flow pattern of the pipeline, and balancing the pressure gradient inside the pipe, thereby reducing the local resistance at the end and the overall conveying resistance, achieving the effect of synergistic optimization of the backfilling pipeline resistance.

The utility model discloses a tailing pond construction transport device, including the frame, the frame both sides are installed with the track assembly, the frame top is fixed with the cab, the frame bottom is fixed with the bottom plate away from the cab one side, the bottom plate upper surface is fixed with the stand, the stand top is fixed with the crossbeam, the crossbeam surface is connected with the sliding sleeve slidingly, the crossbeam is hollow design inside, and the crossbeam is provided with the drive assembly of drive sliding sleeve movement inside. In the utility model, setting up the frame, track assembly, bottom plate, crossbeam, sliding sleeve, drive assembly, electric hoist and storage mechanism, through the storage mechanism in the material storage ground storage material, then utilizes the track assembly drive this device movement, through the electric hoist and stores the material mechanism to hang to the frame, then transports the storage mechanism to the designated place to not need in the material storage ground waiting for loading, only needs to carry on the back and forth rotation of the storage mechanism to be transported to, thereby improves the transportation efficiency.

The present invention relates to the technical field of green backfill mining in coal mines. Disclosed are a multi-source solid waste backfill slurry and a preparation method therefor. Raw materials for the multi-source solid waste backfill slurry include: a multi-source solid waste material, a waterborne epoxy resin, a curing agent, a waterborne acrylic resin, and polyacrylic acid. Raw materials for the multi-source solid waste material include: tailings, desulfurized gypsum, fly ash, and gasification slag. The raw materials used in the present invention are all green and environmentally friendly raw materials, various types of solid waste materials feature low costs, and the entire preparation process requires no addition of cement, effectively reducing the cost of backfill mining in coal mines; moreover, efficiently and rationally utilizing various types of solid waste materials reduces surface accumulation, and vigorously promotes the green mining process of coal, thereby providing a brand-new green backfill approach for cemented backfill mining, and achieving significant social and economic benefits in ensuring safe and low-cost mining of mines.