112 results about "Slurry viscosity" patented technology

The invention provides a foundation pit water gushing iron ore grading thixotropic blockage reduction method which comprises the steps that iron ore tailings are crushed and screened into multi-stage particle size particles, and a customized mold is subjected to 3D printing based on foundation pit scanning data; paving particles in a mold layer by layer, doping iron powder, and cementing and curing cement paste to form a prefabricated body; the prefabricated body is installed to a water gushing area, the slurry viscosity is increased through a grading contact network, a weak gravitational flow state is triggered to be transiently changed to an anti-scouring state, and water flow speed reduction is achieved; alternating field induction micro-vibration is synchronously started during lateral grouting, and grout permeation and bubble discharge are driven; after solidification, the guide core body is pulled away, and remaining pore channels are self-compacted by a grading system to form an anti-seepage structure. The method has the advantages that the anti-scouring performance is enhanced; particle-slurry-foundation pit curved surface triple self-adaptive combination is carried out; the engineering cost is reduced.

The invention provides low-temperature synthesis equipment for reducing slurry viscosity and a synthesis method thereof, and relates to the field of ceramic slurry synthesis, the low-temperature synthesis equipment comprises a synthesis assembly, the synthesis assembly comprises a driving mechanism and a dispersion mechanism, the effective use outer diameter of the dispersion mechanism can be freely regulated and controlled, so that the dispersion mechanism can adapt to dispersion cylinders with different inner diameters; the working position can be flexibly adjusted without replacing the dispersion disc, the gap between the dispersion disc and the barrel wall is reduced to eliminate edge stirring dead angles, and meanwhile, the two dispersion mechanisms rotate in opposite directions, so that the dispersion mechanisms are matched with different outer diameters, a complex three-dimensional flow field can be formed in the barrel, the slurry dispersion uniformity and the viscosity reduction efficiency are remarkably improved, and the dispersion efficiency is improved. The problems that a dispersing disc of a dispersing machine used for synthesizing ceramic slurry is of a fixed structure and can only adapt to a dispersing barrel with a certain specific inner diameter, the dispersing machine is mostly of a single-disc structure, dead angles are easily formed at the upper part and the bottom of a barrel body, and the synthesis effect is poor are solved.

The invention provides a starch saccharification reaction state prediction, regulation and control method, which is applied to the technical field of food processing, and comprises the following steps: dividing a reaction system into a plurality of sub-regions, collecting temperature, slurry viscosity, starch particles, enzyme concentration and other sensing data of each sub-region, and calculating a local gelatinization degree index by using a preset gelatinization degree calculation model. According to the method, a saccharification reaction state prediction model is established, saccharification parameters of each sub-region are predicted in combination with the saccharification reaction state prediction model, then a saccharification state prediction result of the whole reaction system is generated, and the type, dosage and time of amylase putting are determined according to the deviation between the prediction result and a preset saccharification target. Therefore, the product quality and the saccharification efficiency are improved.

The invention belongs to the field of lithium ion battery positive electrode materials, and particularly relates to a low-cost preparation method of a lithium ion battery positive electrode material lithium manganese iron phosphate. The preparation method comprises the following steps: firstly, reacting manganese oxide with phosphoric acid and hydrogen peroxide in advance to obtain manganese phosphate slurry; adding an iron source and a carboxylic acid-based carbon source into the reaction system, uniformly stirring and mixing, ball-milling for a period of time, adding lithium phosphate and an organic carbon source into the reaction container, fully and uniformly mixing the raw materials, and refining particles; and finally, carrying out spray drying and high-temperature sintering on the obtained slurry to prepare the lithium iron manganese phosphate positive electrode material. The method has the advantages of low slurry viscosity in the preparation process, high solid content, simple preparation process, low cost, easiness in batch and large-scale expansion and the like, and the prepared lithium manganese iron phosphate positive electrode material product has excellent electrochemical performance.

The utility model discloses an anti-clamping roller mechanism of a desulfurization vacuum belt conveyor, and relates to the technical field of limestone-gypsum wet desulfurization equipment optimization. The device comprises a belt roller, positioning columns are coaxially installed on the two sides of the belt roller, one positioning column is coaxially connected with a power mechanism, the positioning columns are rotatably installed on a supporting frame, containing gaps are formed in the supporting frame, and the positioning columns penetrate through the containing gaps. The outer wall of the positioning column is connected with the inner wall of the containing gap through a bearing, the bearing is arranged in the containing gap, a plugging cavity is formed between the inner wall of the containing gap and the outer wall of the positioning column, and a plugging medium conveying mechanism is arranged in the supporting frame. The discharging end of the plugging medium conveying mechanism is communicated with the plugging cavity; the problems that according to an existing belt conveyor, a roller is prone to being clamped due to large slurry viscosity, and after the belt conveyor is shut down for a long time, a power roller is prone to being stuck are solved.

The invention provides a splitting grouting discrete element numerical simulation method based on slurry viscosity time-varying characteristics, and belongs to the technical field of splitting grouting simulation. Comprising the following steps: performing a slurry viscosity time-varying characteristic indoor test to obtain the time-varying characteristic of slurry viscosity; constructing a slurry DEM particle viscosity time-varying contact model based on the time-varying characteristics; carrying out splitting grouting simulation based on a slurry DEM particle viscosity time-varying contact model; under a fixed working condition, an obtained simulation result is compared with a test result of an indoor test, and the slurry DEM particle contact model is calibrated; and the calibrated slurry DEM particle contact model is utilized to carry out splitting grouting simulation under multiple working conditions. According to the device and the method, the viscosity time-varying characteristic and the phase change consolidation mechanism of the slurry can be effectively coupled, and the dynamic influence of the rheological characteristic of the slurry in a pore injected medium on the splitting diffusion process can be accurately simulated; and a beneficial method is provided for improving the accuracy and scientificity of the splitting grouting diffusion process of the tunnel and underground engineering.

Disclosed are a viscosity-reducing polycarboxylic superplasticizer and a preparation method therefor. The viscosity-reducing polycarboxylic superplasticizer is obtained by compounding a macromolecular polymer and a pre-wrapped small-molecule polymer in a weight ratio of 1.7-2.3 : 1, wherein the molecular weight of the macromolecular polymer is between 75,000-85,000; and the pre-wrapped small-molecule polymer comprises a small-molecule polymer, a thickening agent and water in a weight ratio of 1,000 : 0.7-1.3 : 8-10, with the molecular weight of the small-molecule polymer being between 14,000-16,000. The polycarboxylic superplasticizer is prepared by compounding the macromolecular polymer and the small-molecule polymer in a certain proportion, thereby exerting a linked viscosity reduction effect, effectively reducing the slurry viscosity of high-performance concrete, improving the adaptability of a concrete admixture, and solving the problem of the site construction of high-performance concrete being difficult.

This invention relates to a method for the graded utilization of wet-process phosphoric acid and the co-production of food-grade phosphoric acid and ammonium phosphate, belonging to the field of phosphoric acid chemical technology. The method first purifies the raw phosphoric acid, with the main process involving multi-stage extraction and back-extraction to obtain food-grade phosphoric acid. For the byproduct raffinate acid, no complex purification is required; instead, a slurry process is used directly to prepare fertilizer. When producing diammonium phosphate, the final neutralization pH is controlled at 8.0-8.5, and the degree of ammoniation is 1.8-2.0. When producing monoammonium phosphate, the raffinate acid is mixed with slag acid and filter solids, and a small amount of raw material acid is added to neutralize to a pH of 4.0-4.5, with a degree of ammoniation of 1.0-1.1. This invention overcomes the problems of high slurry viscosity, equipment blockage, and low product grade caused by the direct fertilizer production of raffinate acid with a simplified process. Furthermore, it coordinates with the disposal of system waste in monoammonium phosphate production, truly achieving high-value utilization and clean production of all components of wet-process phosphoric acid.

A method for producing an electrode assembly for a solid-state battery, wherein the electrode assembly is produced by partially drying an electrode slurry (20-50% dryness) and subsequently coating it with a solid electrolyte slurry of controlled viscosity (1,000-10,000 cP) and solids content (40-80 wt%). Both slurries are dried at 60-120 °C, whereby the ratio of solid electrolyte slurry viscosity to electrode slurry viscosity (0.2-1.0) is reduced to minimize interlayer mixing. The degree of dryness is determined by comparing the residual solvent in the partially dried layer with that of the original slurry. This approach results in a uniform interface between the electrode and the electrolyte.A corresponding method for a solid-state battery encloses the resulting electrode arrangement together with an anode layer in a battery housing, ensuring improved interfacial stability.

The application relates to the technical field of lithium ion batteries, in particular to an ultralow-viscosity manganese iron phosphate lithium material and a preparation method thereof, which comprises the following steps: S1. preparing a manganese iron phosphate precursor; S2. mixing the manganese iron phosphate precursor, lithium hydroxide, goulac gum, vanadium pentoxide and deionized water, and then performing second grinding to obtain a premix; and S3. drying, sintering and airflow crushing the premix to obtain the ultralow-viscosity manganese iron phosphate lithium material. The manganese iron phosphate precursor is synthesized in advance, so that the uniform distribution of manganese iron elements in the material can be ensured; then, the manganese iron phosphate precursor is reacted with lithium hydroxide, goulac gum and other substances; part of the goulac gum releases an aldehyde group in an alkaline environment created by the lithium hydroxide, and serves as a reducing agent; the remaining goulac gum serves as a dispersant, reduces the slurry viscosity and is helpful to the uniform dispersion of components; in addition, the goulac gum can form a dense and uniform coating layer on the surface of the material as a polysaccharide, so that the performance of the manganese iron phosphate lithium material is improved.

The invention discloses a desulfurization slurry foaming early warning system based on viscosity control and an operation method thereof, and belongs to the technical field of industrial flue gas desulfurization intelligent control. The system comprises a data acquisition and processing module, a feature extraction module, a model calculation module and a risk early warning module. The system collects slurry viscosity, temperature, pH and foam height signals in real time, and adopts a sliding time window to extract dynamic characteristics such as viscosity change rate delta V / delta t, temperature deviation delta T and pH fluctuation standard deviation sigma pH; based on fusion of an index nonlinear distribution method with time-varying gain and an XGBoost decision tree algorithm, an adaptive foaming risk index model R (t) is constructed, and dynamic adjustment of parameter weight coefficients (Wv, Wt and WpH) is realized. By introducing a model prediction error feedback e (t) and an actual observation risk index Robs (t), the system can automatically correct the weight and continuously learn an operation rule, so that advanced prediction and graded early warning of the foaming risk of the desulfurization slurry are realized.

The utility model discloses a compound fertilizer slurry viscosity regulation and control device, especially in the technical field of compound fertilizer production, including the shower nozzle, the shower nozzle outside is equipped with the adjusting part for adjusting compound fertilizer slurry viscosity, the adjusting part prevents compound fertilizer rubber material to stay through multiple groups of vibrating part, and each group vibrating part includes the vertical board of being equipped with the outside of shower nozzle top end, the one side of vertical board bottom end is close to the installation of telescopic link of shower nozzle, the one end of telescopic link is installed with the movable plate of the section of L of far away from vertical board.

The invention relates to the technical field of shield tunnel construction, in particular to an underground structure compaction grouting permeation filtration diffusion time-varying analysis system and method.The method comprises the following steps that a grouting pressure and grouting time relation calculation model is built, and construction parameters are obtained; inputting the obtained construction parameters into a constructed grouting pressure and grouting time relation calculation model; the situation that the grouting pressure changes along with the grouting time and considering the deep percolation effect and the slurry viscosity time-varying characteristic at the same time, the situation that the grouting pressure changes along with the grouting time and considering the deep percolation effect independently and the situation that the grouting pressure changes along with the grouting time and considering the viscosity time-varying characteristic independently are obtained through calculation and output. According to the method, the pore blocking effect caused by particle deposition of the slurry in the soil body and the dynamic change of the slurry viscosity along with time are coupled, and the influence of the deep percolation effect and the time-varying property of the slurry viscosity on the permeation and diffusion of the slurry is considered at the same time.

An electrode assembly is produced by partially drying an electrode slurry (20-50% dryness), then coating a solid electrolyte slurry with controlled viscosity (1,000-10,000 cP) and solids content (40-80 wt %). Both slurries are dried at 60-120° C., while the ratio of solid electrolyte slurry viscosity to electrode slurry viscosity (0.2-1.0) reduces interlayer mixing. The degree of dryness is determined by comparing residual solvent in the partially dried layer to the original slurry. This approach yields a uniform interface between the electrode and electrolyte. A corresponding method for an all-solid-state battery encloses the resulting electrode assembly, along with an anode layer, in a battery casing, ensuring enhanced interface stability.

This invention discloses lithium iron phosphate cathode materials, their preparation methods, and lithium-ion batteries, relating to the field of lithium-ion battery technology. This invention utilizes first, second, and third iron phosphates of different particle sizes to form a three-level multi-scale particle size distribution system, which can improve the material's packing efficiency and compaction density. By utilizing the synergistic effect of macromolecular carbon sources and dispersants, the sand milling process is optimized, reducing slurry viscosity and improving sand milling efficiency, significantly reducing sand milling time while ensuring particle integrity and dispersibility. Simultaneously, the use of macromolecular and small-molecule carbon sources to form a double-layer carbon coating structure achieves synergistic mechanical support and conductive enhancement, simultaneously improving the material's cycle stability and rate performance.

The invention belongs to the technical field of grouting simulation, and particularly discloses a deformation porous medium splitting grouting simulation method and system.The method comprises the steps that a three-dimensional geometric model of a porous medium in an area to be simulated is built, a computational domain is determined, and the computational domain is divided into a plurality of non-overlapped unit grids; establishing a multiphase system control equation, and carrying out numerical updating on relative permeability, density, viscosity and surface tension; on the basis of the updated parameters, fluid velocity field calculation is conducted through a fluid control equation of the pure fluid area; calculating transmission time based on the obtained fluid velocity, and updating a slurry viscosity field through a slurry viscosity space-time tracking model; and the solid speed and mass are updated based on the solid mass and momentum conservation equation, and the grouting simulation process is completed. According to the method, the permeability change of the porous medium and the dynamic coupling effect of the stress state are comprehensively considered, and a scientific basis is provided for grouting design and optimization under complex working conditions in engineering.

The invention provides a battery pole piece production coating control method, a battery pole piece production coating control system and battery pole piece production coating control equipment, and relates to the field of battery production control. Compensating the coating width deviation caused by factors such as base material tension fluctuation, slurry viscosity change, base material transverse deviation and the like by using the first feedback control parameter; in addition, according to the method, a second feedback control parameter is accurately obtained by fully utilizing dislocation data between the front side and the back side of a base material of the battery pole piece, and the second feedback control parameter is utilized to compensate for edge dislocation of a double-side coating film caused by factors such as base material dislocation and tension fluctuation; the two feedback control parameters can be decoupled through a model prediction control means, so that mutual interference caused between control loops is restrained, the coating consistency of the battery pole piece is improved, and the energy density and safety of the battery are improved.

This application discloses a multi-parameter real-time monitoring and intelligent batching system for gangue-filled slurry, comprising: a sensing and monitoring module for real-time acquisition of slurry physical property parameters and pipeline operating parameters during the preparation and transportation of gangue-filled slurry; the parameters include at least slurry density, slurry viscosity, slurry flow rate, and pipeline pressure; an intelligent decision-making module, communicatively connected to the sensing and monitoring module, which has a built-in intelligent decision-making model based on deep reinforcement learning, for dynamically outputting instructions for adjusting the slurry ratio based on the received real-time parameters, the instructions including the adjustment amount of the mass ratio of fine-particle gangue to coarse-particle gangue and the adjustment amount of slurry mass concentration; and a batching execution module, communicatively connected to the intelligent decision-making module, for real-time control of the fine-particle gangue feeding device, the coarse-particle gangue feeding device, and the water supply device according to the instructions, so as to dynamically adjust the particle size distribution and concentration of the slurry. This achieves adaptive optimization of the gangue-filled slurry ratio.

This invention relates to a method, device, equipment, and medium for controlling post-grouting construction of cast-in-place piles, belonging to the field of communication technology. The method includes: parameter optimization calculation: constructing a dynamic optimization model based on machine learning algorithms to perform multi-objective collaborative optimization of grouting pressure, grouting volume, and grout viscosity, outputting the design value of each parameter; real-time feedback control: dynamically adjusting grouting parameters according to the pressure fluctuation rate and flow deviation rate during the grouting process to meet preset constraints; and intelligent termination control: dynamically executing a graded termination strategy based on real-time monitoring data, where different graded termination strategies correspond to different termination conditions. This achieves the effect of enabling the automated system to accurately allocate the amount of grouting material according to real-time working conditions, avoiding material waste caused by improper human operation, and significantly improving material utilization.

The invention provides a water-based electrosilvering coating for an automobile hub and a preparation method of the water-based electrosilvering coating, and belongs to the technical field of paints.The preparation method of the coating comprises the following preparation steps that deionized water, a dispersing agent, a water-based hydroxyl acrylic acid dispersion, a defoaming agent, a flatting agent and dipropylene glycol monobutyl ether are evenly mixed, pH is adjusted, and a premixed resin material is obtained; the preparation method comprises the following steps: mixing an ethanol solution with cyanomethyl [3-(trimethoxysilyl) propyl] trithiocarbonate, adding glacial acetic acid and water-based aluminum paste, stirring, filtering, washing, dispersing in deionized water, adding a sulfobetaine methacrylate monomer and potassium persulfate, heating, reacting, cooling, filtering, washing, mixing with deionized water, and drying to obtain the water-based aluminum silver paste. Modified water-based aluminum paste is obtained; and mixing and stirring the premixed resin material and the modified water-based aluminum paste, adjusting the viscosity and pH of the paste, filtering, standing and curing to obtain the water-based electrosilvering coating for the automobile hub. A coating prepared from the coating has good hardness and corrosion resistance.

The present application belongs to the technical field of lithium battery slurry concentration measurement, and relates to a lithium battery slurry viscosity prediction method, system and electronic equipment thereof, comprising the following steps: collecting operating parameter data of a stirrer of target slurry in a stirring process in a preset time period; obtaining actual viscosity of the target slurry in the preset time period, and calculating the viscosity of the target slurry based on a pre-established slurry viscosity prediction model according to the operating parameter data of the stirrer to obtain a first predicted viscosity of the target slurry; determining a correction coefficient of the slurry viscosity prediction model according to the actual viscosity and the first predicted viscosity; obtaining a prediction time period in a real-time prediction request, and predicting a second predicted viscosity of the target slurry in the prediction time period based on the correction coefficient and the slurry viscosity prediction model. The present application has the advantages that the viscosity of the slurry in the stirrer can be accurately predicted, and the situation that the viscosity of the slurry is too high or too low during stirring can be avoided.

The application provides a preparation method of a positive electrode slurry, the positive electrode slurry, a positive electrode sheet, a secondary battery and an electric device. The preparation method of the positive electrode slurry comprises first stirring, second stirring and third stirring. In the first stirring, a positive electrode active material is mixed and stirred with a binder to prepare a dry mixture. In the second stirring, a solvent is kneaded with the dry mixture to prepare a primary slurry. In the third stirring, a conductive agent, the solvent and the binder are mixed and stirred with the primary slurry to prepare the positive electrode slurry. The preparation method has universality and is suitable for a slurry containing different molecular weight binders, especially a high molecular weight binder, so that the slurry viscosity and the anti-settling property are effectively improved, the slurry uniformity is optimized, the conductive performance is improved, and the preparation cost is reduced and the production efficiency is improved.

The invention relates to the technical field of oxide ceramic matrixes, and particularly discloses an oxide ceramic matrix composite material and a preparation method thereof.The oxide ceramic matrix composite material is prepared from, by mass, 90-99 parts of ceramic matrix powder, 1-10 parts of oxide ceramic fibers and 0.5-8 parts of a silane coupling agent; wherein the ceramic matrix powder comprises aluminum oxide (Al2O3) and at least one sintering aid, and the volume of the oxide ceramic fibers accounts for 10-25% of the total volume of the composite material; the high-performance and high-density oxide ceramic-based composite material is prepared by combining key technologies such as fiber modification, slurry viscosity control, vacuum pressure impregnation and stepped hot pressed sintering.

The present application proposes a splitting grouting discrete element numerical simulation method based on the time-varying characteristics of slurry viscosity, belonging to the technical field of splitting grouting simulation; including obtaining the time-varying characteristics of slurry viscosity by conducting indoor test of time-varying characteristics of slurry viscosity; constructing a slurry DEM particle viscosity time-varying contact model based on the time-varying characteristics; conducting splitting grouting simulation based on the slurry DEM particle viscosity time-varying contact model; comparing the obtained simulation results with the test results of indoor test under fixed working conditions, and calibrating the slurry DEM particle contact model; using the calibrated slurry DEM particle contact model to conduct splitting grouting simulation under multiple working conditions. The present application can effectively couple the time-varying characteristics of slurry viscosity and the phase change consolidation mechanism, realize accurate simulation of the dynamic influence of the rheological properties of the slurry in the pore on the splitting diffusion process, and further provide a beneficial method for improving the accuracy and scientificity of the splitting grouting diffusion process of tunnels and underground engineering.

The invention provides a coal seam floor aquifer bedding grouting final hole pressure selection method and system, and the method comprises the steps: considering the spatial viscosity distribution difference of slurry of different flow patterns in a flowing region, which belongs to a two-phase fluidity problem in a slurry water displacement process and has a coupling effect and a temperature influence between the slurry and a rock mass in a slurry diffusion process; the relation between the grouting pressure p and the grout diffusion radius r is determined; and performing numerical simulation analysis to obtain the relationship between the grouting pressure and the slurry diffusion radius in the water-driving grouting process in which the ground temperature, the slurry viscosity time-varying characteristic, the rock mass coupling effect and the damage effect are comprehensively considered, and achieving the research target of giving the preset diffusion radius to inversely calculate the final hole pressure. The technical problems that due to the fact that a grouting final hole pressure calculation method under the multi-factor comprehensive influence is lacked, the actual grout diffusion effective radius is smaller than the designed diffusion radius, full coverage of a grouting transformation area cannot be achieved, and then potential threats are caused to recovery of deep coal resources are solved.

The application discloses a water-based lithium iron positive plate and a preparation method thereof. The positive plate is a water-based positive slurry, and comprises LFP, carbon nanotubes CNT, a conductive agent SP, a water-based binder, a dispersing agent and deionized water. The preparation method of the water-based lithium iron positive plate is started from aspects of a positive formula, coating parameters and process technology, and the like. By adding an NMP+PC (1:2) mixed solution in mixing, strictly controlling slurry viscosity, and low-speed stirring in a turnover tank, guarantee is provided for slurry coating. By controlling coating temperature, installing a humidifying device, and starting from a single side, and controlling workshop temperature and humidity, the water-based lithium iron positive plate is coated on a single side without edge curling, edge cracking, hardness and brittleness, and generation breakage. The water-based positive plate has solved the problem that the water-based positive plate cannot be mass-produced all the time, and a feasible preparation method of the water-based lithium iron positive plate is successfully developed. The prepared battery has similar performance to that of an oil-based lithium battery, is lower in cost, and is green and pollution-free.

The invention discloses stirring equipment and a stirring method, and belongs to the technical field of stirring equipment. The equipment comprises a bracket; an output shaft of the stirrer is connected with an external stirring shaft; the external neodymium magnet is coaxially and fixedly connected to the tail end of the external stirring shaft; a cover plate is arranged at the top of the stirring tank, and a circular sealing strip is embedded in the edge of the cover plate and is locked with the tank body; the internal neodymium magnet is positioned below the cover plate and forms magnetic coupling with the external neodymium magnet; the internal stirring shaft is coaxially connected with an internal neodymium magnet, and double stirring discs are mounted on the shaft; a stirring disc hole is formed in the middle of the stirring disc, stepped stirring disc teeth are arranged above and below the disc surface, and the dispersing rod is vertically welded on the disc surface; multiple sensors are integrated on the side wall of the stirring tank, a tank interlayer is provided with a cooling water inlet and a cooling water outlet, the top of a tank cavity is provided with a drying gas inlet, and the bottom is provided with a vacuum port. The viscosity stability of the slurry is remarkably improved, the volatility is greatly reduced, and the overall performance and consistency are comprehensively improved.

The invention relates to a polymer slurry viscosity detection method and device based on a slump method, and belongs to the technical field of polymer material detection.The method comprises the steps that in the dispersion process of polymer slurry, slump parameters of the polymer slurry are obtained; the slump parameters comprise slump time, sample temperature, slump speed and slump breadth; inputting the slump parameters into a trained prediction model to obtain predicted viscosity of the polymer slurry output by the prediction model; the prediction model is obtained by training the BP neural network based on the collapse parameters of the standard sample. The polymer slurry viscosity detection method based on the slump method provided by the invention has the advantages of small sample consumption in the detection process, low cost, sustainable slurry dispersion process in the detection process, real-time detection and feedback of the slump speed and breadth of the polymer slurry under the dead weight based on the slump method and the neural network algorithm, and accurate detection of the viscosity of the polymer slurry. The predicted viscosity of the polymer slurry can be accurately measured in real time, and the detection speed is high.

The invention discloses sedimentation-free and agglomeration-free nano-diamond slurry and a preparation method and application thereof.The sedimentation-free and agglomeration-free nano-diamond slurry is composed of a component A and a component B. The weight percentage of the component A to the component B is 80-95 wt%: 5-20 wt%, the component A is prepared from, by weight, 20-50 wt% of a first organic solvent, 20-50 wt% of a silane coupling agent, 5-20 wt% of a dispersing agent, 5-20 wt% of a permeation promoter and 5-20 wt% of nano-diamond powder, and the component B is prepared from, by weight, 20-50 wt% of a second organic solvent, 5-20 wt% of the content of the silane coupling agent is 2-5 wt%, the content of the dispersing agent is 5-20 wt%, the content of the permeation promoter is 3-10 wt%, the content of the nano diamond powder is 15-70 wt%, and the permeation promoter is selected from at least one of pure Fe powder, pure Co powder, 2% of pure Cr powder and pure CeO2 powder; the component B is prepared from the following raw materials in percentage by weight: 60 to 80 percent of second organic solvent, 10 to 20 percent of resin and 10 to 20 percent of corresponding curing agent. The dispersity and stability of the nano-diamond powder are remarkably improved; the slurry viscosity is optimized, and a simple dip-coating process is realized; a thick hardened infiltrated layer is formed, and the steel hardness is remarkably improved; the process is simple, economical and environment-friendly; and universality and expandability are realized.

The present application relates to the technical field of mineral processing engineering, and discloses a multi-stage grinding and grading linked beneficiation method for recovering low-grade lead-zinc ore, which first breaks the macroscopic wrapping of the ore through coarse grinding, then separates the fine useful minerals which have been completely dissociated, and directs the coarse particles which have not been dissociated to the fine grinding link for deep grinding, while judging whether the fine grinding slurry meets the standard based on the dissociation detection result, and the non-standard particles are returned for regrinding, and a combined dispersant adding structure is adopted, a mineral characteristic detection unit is simultaneously added, and a dynamic parameter adaptation mechanism of the grading equipment is adopted, the dispersant inhibits particle agglomeration through the dual action of charge repulsion and steric hindrance, the characteristic detection unit captures the changes of the mineral surface charge, the settling velocity and the slurry viscosity after the action of the dispersant in real time, and then the vibration frequency, the overflow pressure and other key parameters of the grading equipment are dynamically adjusted through the parameter adaptation mechanism, so as to offset the settling deviation caused by the change of the mineral characteristics, and avoid the loss of fine useful minerals.