13 results about "Settling rate" patented technology

This application relates to the field of sodium fluoride production technology, specifically disclosing a slurry separation device, including a first cylinder, a second cylinder, and a flow-limiting barrier. The second cylinder is installed above the first cylinder using the flow-limiting barrier. A stirring section is installed on the first cylinder, a slurry feed section is provided above the stirring section, a circulating liquid feed section is provided below the stirring section, and a heavy phase discharge section is provided at the bottom of the first cylinder. A light phase discharge section is installed on the second cylinder. This application can quickly separate silica and sodium fluoride according to their settling rates during the circulation process. Furthermore, the slurry separation device provided by this application is easy to disassemble and clean, and has good practical performance.

The invention relates to the technical field of data visualization, in particular to a data processing method of a chemical management platform. The method comprises the following steps: deploying sensors in a chemical waste liquid separation unit to collect data such as concentration, temperature, pressure, pH value and sedimentation rate, performing fusion processing through edge computing equipment, adaptively dividing separation sections, and performing anomaly judgment based on a separation efficiency index to construct a dynamic visual model. And finally, the data is pushed to a chemical service platform through a network communication protocol, so that real-time data monitoring and risk early warning in the waste liquid separation process are realized. According to the invention, accurate division of separation segments is realized through multi-dimensional sensing acquisition and edge calculation, intelligent abnormal identification and dynamic visual modeling are realized through combination of a separation efficiency index and a convergence determination mechanism, and real-time data monitoring and risk early warning in a separation process are realized through a network communication protocol. Therefore, the data precision, the abnormity identification capability and the platform monitoring level of the chemical waste liquid separation process are obviously improved.

The invention relates to the technical field of mineral separation equipment control, and discloses a special discharging control method for a high-density jigger and a control structure of the special discharging control method. The method comprises the following steps: acquiring a bed initial physical signal through detection, and separating water flow pulsation interference through specific filtration to obtain a pure bed state signal. Then feature vectors composed of bed density distribution, looseness and particle sedimentation rate are constructed and compared with a preset standard model item by item, a discharge adjustment plan is generated and verified according to the difference, and finally a control instruction set containing the valve opening degree, duration and strength is issued to drive discharge. And evaluating the convergence degree of the new state and the target after execution, and determining whether to start the next round of control. By means of the method, the sensing precision of the real state of the high-density fine particle material bed can be improved, accurate and self-adaptive adjustment of the discharging strategy is achieved, and therefore the separation efficiency and stability are improved.

The application discloses a method for improving the concentration efficiency of a concentration tank, and has the characteristics that it comprises the following steps: screening and adding reagents and calculating the adding amount: sampling the ore pulp in the concentration tank, measuring the settling rate of the sample; adding different reagents in the sample respectively, and measuring the settling rate respectively; adding different amounts of reagents in the sample respectively, and measuring the settling rate respectively; recording the reagent model used when the optimal settling rate is achieved and the final adding amount of the reagent; calculating the adding amount of the reagent of the concentration tank: measuring the ore input amount of the concentration tank, the area of the concentration tank and the particle size of the ore pulp; calculating the specific adding amount of the reagent of the concentration tank according to the screening and adding reagents and the calculation of the adding amount; and adding reagents: adding reagents at the ceramic machine overflow pipe entering the concentration tank according to the calculation of the adding amount of the reagent of the concentration tank. The application adds reagents in the concentration tank, makes the floating solid particles gather, accelerates the settling rate of the solid particles, increases the adsorption of the ceramic plate to the ore pulp, and improves the production capacity.

The present application discloses a method and apparatus for determining the settling rate of proppants in hydraulic fracturing. The method comprises: acquiring the target mesh size of the proppant; obtaining the bulk density of the proppant, and the density and viscosity of the carrier fluid under reservoir conditions; retrieving the proppant concentration (sand ratio) during injection; and applying a pre-established predictive model specific to the selected mesh size. The model inputs include proppant bulk density, carrier fluid density, reservoir-temperature viscosity, and sand ratio, and the output is the estimated settling velocity. This method effectively addresses the technical challenge of predicting proppant transport behavior under downhole conditions, thereby enhancing proppant placement accuracy and improving fracture conductivity in low-permeability formations.

The application provides an integrated gas-lift reactor and method for separating target based on high-activity granular sludge, reaction period of the gas-lift reactor is divided into sludge expansion suspension stage and sludge sedimentation reflux stage, through the settling rate of the granular sludge in each stage and the apparent gas velocity of the liquid phase, the expansion rate difference value of the sludge bed in the reactor between adjacent stages is determined; according to all the expansion rate difference values and the distribution density of different height regions, the particle size grading and activity layering characteristics of the granular sludge in the reactor are determined, and then the sludge loss amount of the effluent outlet is predicted according to the particle size grading and the activity layering characteristics, so as to obtain the retention enrichment effect evaluation value of the granular sludge; when the retention enrichment effect evaluation value is lower than the preset evaluation threshold value, the gas-lift aeration amount of the reactor bottom and the liquid phase circulation rate in the draft tube are balanced in stages. Based on the above scheme, the balanced separation and retention of the high-activity granular sludge can be realized.

The application discloses a mine water coagulation treatment method based on floc property optimization and belongs to the technical field of water treatment. In view of the problems of PAM dosage depending on experience, unreasonable hydraulic parameters and weak water quality fluctuation resistance in the existing polyaluminum chloride-polyacrylamide (PAC-PAM) combined process, the floc structure and the settling performance are synergistically optimized by precisely regulating the dosage of reagent and the flocculation hydraulic condition. The method is as follows: 30 mg / L of PAC is added to mine water, fast stirring is carried out at 500 r / min for 1 min; then 0.8 mg / L of PAM is added, and slow stirring is carried out at 80 r / min for 15 min. After the above parameter control, the coagulation floc is in a dense network shape, the median particle size increases to 1004 mu m, the settling rate is significantly improved, the residual turbidity decreases to 1.31 NTU; the particle size distribution span is 1.216, the fractal dimension is 1.752, the strength factor is 82.13%, and the recovery factor is 70.07%, so that the excellent structure strength and self-repairing capacity are combined. The application determines the PAM dosage critical threshold, establishes the quantitative correlation of "process parameters-floc structure-settling performance", and provides a precise controllable technical scheme for mine water treatment.

The invention provides a dust settling and spraying device capable of preventing atmospheric pollution, and relates to the field of dust settling equipment, the dust settling and spraying device comprises a settling chamber, the settling chamber is of a tubular structure, a hemispherical input end and a hemispherical output end are arranged at the two ends of the settling chamber respectively, an air inlet pipe is arranged at the input end, an exhaust pipe is arranged at the output end, and an air outlet pipe is arranged at the exhaust pipe. A collecting bin for supporting the settling chamber is further arranged at the bottom of the settling chamber, and an air raising mechanism is arranged on the side, close to the input end, in the settling chamber; the air raising mechanism is used for sucking and then discharging entering waste gas, the atomization spraying assembly is matched, the effect of a fog gun machine is achieved, the waste gas and atomized water are fully mixed and make contact, meanwhile, the blocking assembly is used for blocking, liquid drops with certain pressure further explode and sputter when making contact with the blocking assembly, and the liquid drops with certain pressure are prevented from exploding and splashing. And the adhesive force to dust in the waste gas is further increased, so that the sedimentation rate of the device to fine particles is increased.

The present application relates to the technical field of oil drilling, and particularly relates to a drilling fluid density measuring device and method considering the influence of barite settling rate. The technical scheme is as follows: the lower end of a mud tank is connected with a screw pump through a second electronic valve, the upper side of the mud tank is connected with a viscosity agent tank through a pipeline, and the middle part is connected with a viscometer through a pipeline; a wellbore mounting frame is installed on one side of the mud tank, a wellbore is installed on the wellbore mounting frame, the middle part of the wellbore is adjusted in inclination angle through a wellbore angle rotating motor, an inner cylinder for simulating a drill string is installed in the inner cavity of the wellbore, an inner cylinder rotating motor is installed on the top of the inner cylinder, the mud tank is connected with the inner cylinder through a pipeline at the bottom of the inner cylinder, and a plurality of density meters are installed at equal intervals from top to bottom in the inner cylinder. The beneficial effects are as follows: the present application can measure the barite settling rate at different depths and the drilling fluid density under the conditions of different densities, viscosities and barite particle sizes, and can establish a model on the basis of experimental data to predict the drilling fluid density.

The application relates to the technical field of pouring sealant, and specifically discloses a low-settling pouring sealant and a preparation method thereof. The low-settling pouring sealant comprises an A component and a B component, the A component comprises the following raw materials in parts by weight: 50-60 parts of polysiloxane; 10-15 parts of a heat-conducting material; 10-15 parts of mixed white carbon black; 10-15 parts of a crosslinking agent; and 5-8 parts of a defoaming agent; the B component comprises the following raw materials in parts by weight: 50-60 parts of polysiloxane; 10-15 parts of a heat-conducting material; 10-15 parts of mixed white carbon black; and 0.5-0.8 parts of a catalyst; the mixed white carbon black comprises ion-modified white carbon black and coupling agent-modified white carbon black in a weight ratio of (1.8-2):1; and the preparation method is as follows: I, preparation of the A and B components; II, two-component mixing: to obtain the low-settling pouring sealant. The product has the advantages of high anti-settling performance and good heat-conducting capacity, and the settling rate is not higher than 10.36 wt%.

The invention belongs to the technical field of wastewater treatment, and particularly relates to an environment-friendly treating agent for papermaking wastewater and a preparation method thereof. The treating agent comprises a component A and a component B, the mass ratio of the component A to the component B is 1: (5-10); the component A is prepared from the following raw materials in parts by weight: 20 to 25 parts of polyacrylamide, 1 to 2 parts of glyoxal, 0.01 to 0.03 part of initiator and 50 to 60 parts of deionized water; the component B is prepared from the following raw materials in parts by weight: 10 to 20 parts of modified bentonite and 1 to 5 parts of plant extract. The treating agent has excellent heavy metal ion adsorption capacity, high sedimentation rate and comprehensive decontamination effect, and meanwhile, the risk of secondary pollution is reduced from the source.

This invention discloses a method and system for designing pulsed volumetric fracturing, comprising: obtaining the maximum conductivity parameter of the proppant based on the engineering geological parameters of the target layer by analyzing the main controlling factors affecting fracture closure and conductivity, thereby calculating the construction parameters corresponding to the maximum conductivity parameter; analyzing the influence of varying fiber fracturing fluid concentration on proppant dust settling rate under different fiber concentration conditions, thereby obtaining the optimal fiber concentration and fracturing fluid concentration under the condition of discontinuous proppant column support; and using the maximum conductivity construction parameter, optimal fiber concentration, and optimal fracturing fluid concentration as design parameters for pulsed volumetric fracturing. This invention fully considers the optimization design problem of pulsed proppant loading regime in volumetric fracturing, providing a design method for establishing high conductivity channels in volumetric fracturing.

The application discloses a montmorillonite suspension quality detection method based on computer vision and belongs to the technical field of computer vision and medical detection. The method continuously collects time sequence images and environmental temperature of the montmorillonite suspension in a transparent detection container through an intelligent sensor; calculates the settling height and instantaneous settling rate by tracking the settling interface after image preprocessing, and determines the final settling volume ratio; calculates the uniformity factor by fusing the gray level co-occurrence matrix feature parameters in the suspension layer region; calculates the fractal dimension by using the difference box counting method to evaluate the flocculation degree; constructs a multi-dimensional feature vector to input a support vector machine classifier to determine the quality grade, and uses a regression model to predict the average particle size; and transmits the uniformity factor and the average particle size to a main controller to adjust the operating parameters of a stirring mechanism or a high-shear dispersion emulsifier. The application realizes the micro, non-contact and online detection and intelligent control of the settling behavior, flocculation structure and particle distribution of the montmorillonite suspension.