295 results about "Mineral particles" patented technology

The invention provides a rock image classification method based on edge enhancement and multi-scale feature fusion. By combining the edge enhancement and multi-scale feature fusion technology, the accuracy of mineral classification in the rock slice image is remarkably improved. According to the method, rock slice image interference is eliminated through filtering and denoising, and mineral particle edges are enhanced by fusing morphological top-hat transformation and a Laplace operator; and performing multi-scale pyramid decomposition on the enhanced image to extract high-frequency information, performing multi-direction response enhancement to generate a direction feature map, and performing channel-level fusion on the original image, the edge enhanced image and the direction feature map. And finally, inputting the fused image into a convolutional neural network to complete rock type classification. According to the method, mineral boundary expression is effectively enhanced, the classification accuracy is improved, and a reliable technical scheme is provided for geological analysis and lithology identification.

The utility model belongs to the technical field of flotation machines, and particularly relates to a flotation machine scraper cleaning device which comprises a flotation machine main shell, first fixing rings are symmetrically arranged on one side of the upper side of the flotation machine main shell, a first shaft rod is rotationally arranged between the first fixing rings, and scraper mechanisms are arranged on the outer side of the first shaft rod at equal intervals. The scraping plate mechanism comprises a sleeve, connecting rods and scraping plates, the sleeve is fixedly connected to the outer side of the first shaft rod in a sleeving mode, the connecting rods are symmetrically arranged on the outer side of the sleeve in a surrounding mode, and the scraping plates are arranged at the ends, away from the sleeve, of the connecting rods. The bristles can brush the upper side face of the arc-shaped blanking plate and the upper side face of the scraping plate about to rotate away from the arc-shaped blanking plate, the scraping plate can be cleaned in time in the separation process, ore grain foam scraped by the scraping plate can be rapidly cleaned out of the arc-shaped blanking plate, the ore grain foam is prevented from rotating back to the surface of ore pulp along with the scraping plate, and the ore pulp quality is improved. Therefore, the effect of scraping ore grain foam next time is prevented from being affected, and the overall efficiency of ore grain separation is guaranteed.

The invention provides a method for measuring and calculating the article position of continuous silver ore with the particle size of 0.037 mm or above, and belongs to the technical field of mineral grade detection. The silver grade in the sample is measured and calculated through screening; leaching and measuring the content of silver monomers and continuous silver minerals, and reselecting to obtain a heavy sand product; carrying out fluorescent dyeing on the heavy sand product, and selecting monomer silver minerals; analyzing the color of the silver mineral through point scanning data of a scanning electron microscope, melting the monomer silver mineral to obtain the volume of the monomer silver mineral, and calculating the content of the monomer silver mineral; and carrying out conversion to obtain the continuous silver ore article position with the size of more than 0.037 mm. According to the method, the target mineral is rapidly and accurately obtained by adopting density medium reselection and fluorescent dye tracing; introducing a scanning electron microscope to measure and calculate the actual density of the silver mineral to replace the theoretical density, smelting the silver mineral in a mold, and carrying out volume measurement and calculation to obtain the actual metal amount closer to the actual silver mineral; measuring and calculating errors caused by impurities and irregular shapes of mineral particles are reduced; and the calculated grade of the silver mineral is more accurate.

The invention relates to the field of powder material manufacturing, and discloses a powder particle model parameter calibration method based on a discrete element method.The method comprises the steps that a static accumulation angle experiment is conducted, and the accumulation angle of micron-sized powder is obtained; performing particle size scaling according to a powder particle size distribution curve; discrete element intrinsic parameters are set according to powder characteristics and mold materials; setting to-be-calibrated parameters and ranges; performing PB design according to the to-be-calibrated parameters and the range; analyzing a test result and screening test parameters which have relatively obvious influence on the simplified and scaled powder accumulation angle; establishing a regression model and seeking an optimal combination by taking a relatively significant test parameter as an independent variable and taking an actually measured static accumulation angle as a target value; and finally determining the mineral particle model parameters based on the discrete element method through the established optimization combination verified by a numerical test. According to the method, the parameter calibration efficiency and the parameter calibration accuracy are improved, and an effective technical means is provided for key parameters of a powder particle numerical simulation experiment.

The invention discloses a relay bin device capable of intelligently detecting and adjusting the mineral height and a deep-sea mining system.The relay bin device comprises a relay bin, a height adjusting unit, a detecting unit and a self-cleaning unit, the height adjusting unit comprises a shell assembly, an air bag assembly and a piston assembly, the shell assembly is arranged in the relay bin, and the air bag assembly is arranged in the relay bin; the air bag assembly is arranged in the shell assembly, a high-pressure air chamber is formed in the air bag assembly, the movable end of the piston assembly extends into the high-pressure air chamber and is in sealed sliding connection with the high-pressure air chamber, and the movable end of the piston assembly can move up and down in the axial direction of the relay bin by inflating and deflating the high-pressure air chamber so as to adjust the height of mineral particles; the detection unit comprises a high-pressure waterproof radar and a high-pressure waterproof ultrasonic sensor, and the high-pressure waterproof radar and the high-pressure waterproof ultrasonic sensor are arranged on the two sides of a discharging port of the relay bin respectively; the cleaning end of the self-cleaning unit faces the high-pressure waterproof ultrasonic sensor and is used for cleaning the high-pressure waterproof ultrasonic sensor regularly.

The invention provides a pore geometric morphology fine characterization method based on confining pore forming of mineral particles, which comprises the following steps: S1, performing fine characterization of the mineral particles based on geometric morphology characteristics, and accurately identifying the mineral particles in combination with characterization results; s2, performing geometric shape quantitative characterization on different types of pores from the angles of pore diameters, roundness, flatness, shape indexes and corner angle indexes to obtain geometric shape parameters of the pores; s3, on the basis of the recognized mineral particles, the names of confinement pores are determined, clustering analysis is conducted on the confinement pores in combination with the geometric morphology quantitative characterization result obtained in the step S2, and a pore classification scheme is established; and S4, based on a classification scheme and a quantitative characterization result, determining development characteristics of shale reservoir pores, establishing a porosity contribution index model formula, and matching and verifying a reservoir physical property result. According to the method, through comprehensive analysis of the pore morphological characteristics, solid data support and theoretical basis can be provided for scientific evaluation of a high-quality pore development mode.

The invention relates to the technical field of vibrating screen production, and particularly discloses a linear vibrating screen which comprises a rack, a stock bin, a vibrating screen assembly and an adjusting mechanism, the vibrating screen assembly comprises two screens and a vibrating motor, the two screens are arranged in an up-down inclined mode and installed on the rack through vibrating bases respectively, the vibrating motor is installed on the vibrating bases, and the adjusting mechanism is installed on the stock bin. The adjusting mechanism comprises a material guiding plate, a first driving structure, a second driving structure and a third driving structure, the material guiding plate is rotationally installed below the stock bin, a material passing opening and a baffle are arranged on the upper-layer screen, the first driving structure is used for driving the screen on the lower side to move, and the second driving structure is used for driving the baffle to act. The third driving structure is used for driving the material guiding plate to turn over. According to the mineral particle screening device, the two screens can be adjusted according to the proportion of large and small particles in mineral particles, so that the screening effect on the mineral particles is ensured.

The invention discloses a method for mechanically activating and intensifying decomposition of mineral type rare earth ore and smelting separation, which comprises the following steps of: S1, adding the mineral type rare earth ore serving as a raw material into ore grinding equipment, and mechanically activating under the action of microwaves; s2, mixing the mechanically activated mineral type rare earth ore obtained in the step S1 with concentrated sulfuric acid, performing sulfating roasting decomposition to obtain sulfating roasted ore, and treating tail gas generated by roasting; and S3, the sulfated roasted ore obtained in the step S2 is leached through a magnesium bicarbonate solution, neutralization and impurity removal are conducted, and after solid-liquid separation is conducted, a sulfuric acid rare earth solution and leaching residues are obtained. The mineral type rare earth ore is subjected to mechanical and microwave activation treatment, so that the granularity of mineral particles is reduced, generation of a new reaction surface is promoted, a mineral crystal structure is deformed, a rare earth phase is subjected to favorable change, wrapped rare earth mineral components are fully exposed and are fully contacted and reacted with acid, and the activation performance of the rare earth ore is improved; and a higher rare earth yield is obtained.

The invention discloses simulated lunar soil for engineering and a preparation process thereof, the simulated lunar soil has a multilayer structure design, and comprises a basic mineral structure layer, a surface activity control layer and a simulated space environment effect layer. The basic mineral structure layer is prepared from modified olivine, titanium-rich basalt, rare earth doped plagioclase, calcium phosphate minerals, nano iron particles and vitreous minerals according to a specific proportion; the surface activity control layer adopts an atomic layer deposition technology to form a nano oxide layer on the surface of the mineral particles; the simulated space environment effect layer is formed through low-pressure helium ion bombardment and ultraviolet irradiation. The preparation process comprises the steps of intelligent graded crushing, mineral phase change control, surface modification and activation treatment, multi-parameter synchronous regulation and control and the like. The simulated lunar soil can be produced in a customized mode according to different lunar area characteristics, the matching degree with real lunar soil physical characteristics exceeds 90%, the ground testing precision of lunar exploration equipment is remarkably improved, and technical support is provided for lunar on-site resource utilization and lunar base construction.

The application provides a high-efficiency recovery method for copper in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue, and belongs to the technical field of mineral processing.The application recovers sulfide copper minerals and intergrowth of the sulfide copper minerals and cupric ferrite in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue through flotation, then recovers cupric ferrite and intergrowth of the cupric ferrite and the sulfide copper minerals in middlings and tailings in the flotation through magnetic separation, and finally recovers superfine cupric ferrite and copper mineral particles completely wrapped by gangue minerals in the tailings in the magnetic separation through chemical dissociation.The application uses the method of combination of flotation, magnetic separation and chemical dissociation, strengthens recovery of the copper in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue, and the comprehensive recovery rate can reach 91.18%.

The invention relates to the technical field of space exploration and lunar soil experiments, in particular to a melting centrifugal type mineral particle morphology remodeling device and a lunar soil glass ball preparation method. The device comprises a mineral protolith high-temperature melting system, a mineral melting slurry conveying system, a centrifugal mineral particle size control system and a mineral particle cooling and morphology remodeling system. The preparation method of the lunar soil glass ball comprises the following steps: adding basalt mineral powder and mineral melting additive powder into a melting centrifugal mineral particle morphology remodeling device to obtain simulated lunar soil glass balls with different particle sizes, and performing morphology transformation on the simulated lunar soil glass balls with different particle sizes by using an ion beam gun. And the lunar soil glass ball state of the impact melting history is reduced. According to the method, high-precision engineering mass production of components, morphology and mechanical properties of the lunar soil glass balls is realized through a fusion centrifugal forming and ion beam surface control composite process, and the problem of soil mechanical behavior deviation caused by morphology distortion of existing simulated lunar soil is solved.

The invention provides a magnetic separator for a mine plant, and belongs to the technical field of magnetic separators. The transverse shafts are fixedly arranged on the inner walls of the two sides of the screening bin, and the outer surfaces of the transverse shafts are movably sleeved with screening plates. During use, mineral aggregates are poured into the screening bin through the feeding hopper, the mineral aggregates are screened through through holes in the screening plates, one side of a pulling plate makes contact with one side of each screening plate, and therefore the screening efficiency is improved; a screening plate is pulled to further enable a plurality of connecting plates and a plurality of second telescopic rods to pull a plurality of first springs, when a pulling plate does not make contact with the screening plate, the connecting plates are pulled through the elastic force of the first springs, and under the back-and-forth movement of the screening plate, mineral aggregates rapidly slide to the interior of the crushing bin on one side of the screening plate; therefore, when the magnetic separator is used, mineral materials are screened, the situation that due to the fact that the mineral granularity is too large, magnetic minerals cannot be effectively adsorbed, and the separation effect is reduced is prevented, and the screening effect is good.

The application discloses a beneficiation separation method for high-copper and low-zinc high-sulfur polymetallic ore, which comprises the following steps: A, after crushing the raw ore, ball milling and grading are performed, the sand is returned to the ball mill, and the overflow product is fed into a copper roughing process; B, copper roughing is performed; C, the roughing concentrate is subjected to copper cleaning process to obtain copper concentrate, and the roughing tailings are fed into a copper scavenging process; D, copper scavenging is performed, the scavenging tailings are subjected to grading, the sand is returned to the ball mill, and the overflow product is fed into a zinc roughing process; E, zinc roughing is performed, the roughing concentrate is subjected to zinc cleaning process to obtain zinc concentrate, and the roughing tailings are subjected to zinc scavenging process to obtain zinc tailings. The application efficiently realizes the separation of copper concentrate and zinc concentrate by fully utilizing the mineral particle size distribution characteristics, introducing a particle size grading system and improving the flotation reagent, and has the technical characteristics of high separation yield, easy operation, stable separation index and the like.

The invention discloses a protective coating treating agent, a protective coating treating fluid, modified forage and a preparation method and application thereof, and belongs to the technical field of ecological engineering. The protective coating treating agent comprises a first component, a second component and a third component in a mass ratio of 10: (0.5-2.5): (1-3), the first component is a natural polymer film-forming material; the second component is a plant-derived functional anti-degradation agent; and the third component is a natural mineral particle reinforcing agent. The protective coating treating agent containing the components is prepared into a protective coating treating fluid, and then the protective coating treating fluid is coated on the surface of forage to form a protective coating, so that the aging resistance of the straw checks in environments of high temperature, strong ultraviolet rays, sand erosion and microbial erosion can be remarkably improved, the service life of the straw checks is prolonged, and the service life of the straw checks is prolonged. And the operation and maintenance cost of ecological restoration engineering is reduced. The straw checkerboard with the protective coating can be widely applied to ecological engineering construction such as treatment of railways, highways and sand source areas in arid and windy sand areas.

The application discloses a kind of multi-element combination collector and its application in low-grade lepidolite flotation, belong to mineral processing technical field.The multi-element combination collector provided by the application is composed of cationic amine collector, anionic promoter and long-chain anionic collector, which significantly improves the reaction activity of the collector and the capture behavior of the mineral particles during the flotation process, reduces the foam viscosity and increases the fluidity, effectively solves the problem of overstable foam and the difficulty of flotation separation of different silicate minerals under acidic conditions, reduces environmental pollution and equipment corrosion, and also strengthens the hydrophobic floating behavior of lepidolite surface, resulting in high grade Li2O concentrate, further realizing the clean recycling of low-grade lepidolite resources.

The invention belongs to the technical field of ore dressing equipment, and particularly relates to a spiral chute ore dressing machine for mineral particles, which comprises a bracket, a spiral chute I and a spiral chute II which are centrosymmetric are connected to the bracket, vertical plate parts are arranged on the edges of the two sides of the spiral chute I and the spiral chute II, and a fixed cover is connected to the upper part of the bracket; a lifting plate capable of sliding up and down is arranged in the fixed cover, two pairs of spiral extrusion vertical plates attached to the inner side of the vertical plate part are connected to the lifting plate, and a feeding pipe with two feeding ends is arranged below the fixed cover. Ore pulp flowing out of the feeding pipe flows downwards along the first spiral chute and the second spiral chute, under the action of centrifugal force and gravity, minerals with different densities are zoned in the first spiral chute and the second spiral chute, the rotating rotating column enables the spiral material extruding vertical plate to move up and down in a reciprocating mode through the oval groove and the protruding block, and the materials are extruded through the spiral material extruding vertical plate. And the spiral material extruding vertical plate intermittently extrudes ore pulp at the vertical plate part through the inclined surface, so that the ore pulp is prevented from being retained at the edge, the cleaning difficulty is reduced, and the separation efficiency and separation effect of the ore pulp are ensured.

The invention relates to the technical field of image processing and intelligent identification, and discloses an image segmentation method for identifying a mineral boundary in a table ore zone. The method comprises the steps of constructing a multi-branch single-output enhancement unit based on gating enhancement and multi-head attention combined dynamic fusion, constructing a multi-scale fusion module of a split-level fusion pyramid structure based on multi-head attention and residual fusion, constructing a trunk module based on convolutional layer and enhancement unit stacking, and constructing a multi-scale fusion module of a split-level fusion pyramid structure based on multi-head attention and residual fusion. Constructing an image recognition segmentation model by combining step-by-step down-sampling, a multi-scale fusion module and a prediction head; and obtaining an ore zone image of a shaking table operation site of the reselection workshop, inputting the ore zone image into the image recognition segmentation model to obtain a recognition result, and completing shaking table separation of the mineral particles based on the recognition result. The problem of insufficient segmentation precision caused by particle size difference, illumination interference, fuzzy boundary and real-time requirement in the existing industrial mineral separation process is solved.

The invention relates to the technical field of micro-fine particle mineral flotation, in particular to a vibration grid device capable of improving the quality of flotation column concentrate. The device is applied to a foam separation section of a flotation column, two groups of grids are symmetrically arranged on two sides of an inner cavity of the flotation column, the grids are positioned on the upper section of an ore pulp liquid level of the flotation column, grid surfaces of the grids are vertically arranged, and the two grids are driven by a reciprocating driving structure and do synchronous reciprocating approaching and separating actions in the radial direction of the flotation column. The structure of the separation section of the flotation column is optimized, weak-hydrophobicity non-target fine mineral particles on the surfaces of bubbles are promoted to be desorbed from the surfaces of the bubbles, and the fine particle flotation concentrate grade of the flotation column is improved.

The invention discloses a sandstone slice image component identification method based on a GL-SLIC algorithm and semi-supervised learning. The method comprises the following steps: firstly, acquiring a sandstone slice image amplified by 200 times under single polarization, converting an RGB image into a CIE-Lab color space, and extracting a GLBP texture feature vector; then a GL-SLIC superpixel segmentation algorithm is constructed, and adaptive segmentation based on texture and color features is realized in combination with a Gabor filter and a local binary pattern; then implementing a region merging algorithm to generate complete mineral particles and pore fragments; finally, a classifier based on VGG16 and a discriminator based on ResNet18 are constructed, a semi-supervised self-training framework is adopted, a model is initialized by using about 6% of manual labeling samples, a high-confidence-coefficient pseudo-label extension training data set is generated through iteration, and automatic recognition of sandstone components such as quartz, pores, kaolinite, rock debris and a matrix is achieved. According to the method, the recognition accuracy of 96.3% on a test set is achieved, compared with a traditional method, the segmentation precision and the recognition accuracy are remarkably improved, the data labeling cost is greatly reduced, and an efficient technical scheme is provided for automatic analysis of geological images.

The inner cylinder type electric separator comprises a machine base, a separation cylinder is rotationally arranged on the machine base, a feeding mechanism, an electrostatic electrode mechanism and a sweeping assembly are arranged in the separation cylinder, the feeding mechanism is used for feeding materials to the inner wall of the separation cylinder, and the sweeping assembly is located on the side, in the rotation direction of the separation cylinder, of the electrostatic electrode mechanism; material receiving assemblies are arranged below the static electrode mechanism and the sweeping assembly, the static electrode mechanism is used for discharging semiconductor and conductor ore grains, and the sweeping assembly is used for discharging non-conductor ore grains. The inner barrel type electric separator has the advantages that minerals with larger particle sizes can be separated, coarse-fraction non-conductor mineral particles are prevented from being mixed into conductor mineral particles, coarse-fraction conductor mineral particles are prevented from being mixed into the non-conductor mineral particles, the separation precision is high, whole-fraction direct separation can be achieved, and the production process is simple.

The invention belongs to the technical field of mineral flotation, and discloses multi-stage regulation mineral flotation separation equipment which comprises a flotation separation equipment body, and further comprises a pre-filtering device, a separation device and a control device, and the pre-filtering device is arranged at the top of one end of an inner cavity of the flotation separation equipment body; the water inlet pipe is fixedly mounted on one side of the top of the flotation separation equipment body; according to the technical scheme, through the arrangement of the dispersing device and the shaking device, when the dispersing device runs, the top of one end of the dispersing device can be rotated, so that minerals and sewage which are guided into the bottom of the water inlet pipe can be driven to flow integrally, and large mineral impurities can be rotated by the dispersing device to uniformly fall on the top of a filter screen plate; meanwhile, the shaking device can be synchronously driven to drive the whole filter screen plate to shake up and down, so that the uniform dispersion efficiency is greatly improved, large mineral particles can be finally prevented from being accumulated to block the filter screen plate, and the filtering fluency and efficiency of the filter screen plate are greatly improved.

The invention discloses a mineral particle surface modification device based on vortex strengthening, and relates to the technical field of mineral separation, the mineral particle surface modification device comprises a shunting circulation mixing assembly, and the shunting circulation mixing assembly is used for mixing ore pulp and chemicals and then conveying the mixture to an inlet of a pulp mixing tank; the flow dividing and circulating mixing assembly comprises a transition pipeline with one end communicated with an inlet of the pulp mixing tank, a first pipeline is coaxially arranged in the transition pipeline, a second pipeline is arranged outside the transition pipeline in the length direction of the transition pipeline, and the two ends of the second pipeline extend into the transition pipeline. The head end of the second pipeline is located in front of the head end of the first pipeline, and the tail end of the second pipeline is communicated with the tail end of the first pipeline. The agent and the ore pulp are forcibly refluxed and mixed in advance before entering the pulp mixing tank, and due to the mixing effect, the mixed liquid does not need to be stirred for a long time in the subsequent pulp mixing tank, and the utilization rate of the agent is increased.

The invention belongs to the technical field of shaking tables, and discloses a novel shaking table structure with a good recovery effect, the novel shaking table structure comprises a bottom plate, the right side of the top of the bottom plate is fixedly provided with a transmission assembly, the left end of the transmission assembly is fixedly connected with a movable plate, and the left side of the back of the movable plate is fixedly provided with a driving motor; the other end of the output shaft of the driving motor is fixedly connected with a rotating shaft, and the front end of the rotating shaft extends into the movable plate and is movably connected with the inner wall of the movable plate in a sleeving mode. By arranging the driving motor, the driving wheel, the driven wheel and the conveying belt, as the outer surface of the conveying belt is a smooth surface, ore grain crushing can be reduced, ore grain integrity can be kept, and the recovery rate of fine-fraction minerals can be increased; therefore, the driving wheel and the driven wheel are matched to drive the conveying belt to move, the conveying belt drives the minerals to slowly move leftwards, and the screening efficiency of the minerals is improved.

The invention relates to the technical field of mineral processing, and particularly provides a flotation concentrate quality evaluation method. According to the flotation concentrate quality evaluation method, systematic and quantitative comprehensive evaluation is carried out by combining multiple parameters such as the concentrate grade, the harmful impurity content, the yield, the mineral granularity characteristic and the dissociation degree characteristic, and accurate data support can be provided for concentrate quality judgment and mineral separation process optimization.

The invention relates to the technical field of sludge treatment and recycling, in particular to a novel sludge conditioner for a novel filter press, which is prepared from the following components in percentage by weight: 15 to 30 percent of modified humate, 5 to 12 percent of compound enzyme preparation, 8 to 20 percent of zwitterionic polymeric flocculant, 20 to 40 percent of inorganic skeleton construct, 3 to 10 percent of oxidant and 10 to 25 percent of hydrophobic modified mineral particles. And the balance of pH regulator and deionized water. According to the novel sludge conditioner disclosed by the invention, by compounding modified humate and other core components, a synergistic action mechanism is constructed, so that the water content of a sludge filter cake is less than or equal to 50-60%, the weight of the filter cake is reduced by over 20%, the COD (Chemical Oxygen Demand) of filtrate is reduced by over 30%, the novel sludge conditioner is adaptive to various filter presses, the filter pressing period is shortened by over 15% through an optimized conditioning process, the productivity is improved, and the treatment cost and the environmental protection pressure are reduced.

The invention relates to the field of image recognition, and discloses a mineral structure type recognition method, system and device and a storage medium. The method comprises the following steps: collecting an optical microscopic image of a sample; detecting the optical microscopic image by adopting a preset image processing algorithm to obtain a network-shaped characteristic graph, a mineral total particle graph, a plurality of single mineral particle graphs and respective pixel point numbers; if the number of the pixel points of the network-shaped feature map is greater than 0, performing intersection comparison on the network-shaped feature map, the mineral total particle map and each single mineral particle map to obtain a total intersection, a plurality of sub-intersections and respective pixel point numbers; and calculating a first proportion based on the number of pixel points of the network-shaped feature map and the number of pixel points of the total intersection, calculating a second proportion based on the number of pixel points of each single mineral particle map and the number of pixel points of each sub-intersection, and further identifying the structure type of each mineral in the sample, including a network structure and a crushing structure. According to the invention, the recognition efficiency of the type of the reticular structure or the crushed structure of the mineral is improved.

The application discloses a deep-sea mining system bunker device with water inlet at the bottom, and relates to the field of deep-sea mining.The technical scheme of the application comprises a bunker room;the lower part of the inner wall of the bunker room is a conical surface structure with a large upper part and a small lower part;the top of the bunker room is vertically provided with a riser pipe, the lower end of the riser pipe extends to the inside of the bunker room, the upper end of the riser pipe extends to the upper part of the bunker room and is connected with a storage room;the top of the bunker room is provided with a feeding opening, the feeding opening is located at one side of the riser pipe, the feeding opening is connected with a feeding pipe, the feeding pipe is provided with a first valve and a second valve, and a storage space is arranged between the first valve and the second valve;the bottom of the bunker room is provided with a lower bunker opening corresponding to the riser pipe, the lower bunker opening is connected with a transition pipe, and the lower part of the transition pipe is connected with a water outlet and a water inlet.The application can conveniently add minerals into the bunker room, and the minerals will not flow out during the injection process, the lower part of the conical surface structure of the inner wall of the bunker room can make the mineral particles gather in the lower bunker opening, and the upward water flow can easily lift the mineral particles.

The application belongs to the technical field of water drive reservoir development, and particularly relates to a temperature-sensitive self-fusion plugging agent and a preparation method and application thereof. The temperature-sensitive self-fusion plugging agent comprises temperature-sensitive organic particles and inorganic particles; the volume ratio of the temperature-sensitive organic particles and the inorganic particles is 5-30:70-95; and the inorganic particles are silicon-containing mineral particles. The temperature-sensitive self-fusion plugging agent has excellent temperature resistance, salt resistance and shear resistance, and high plugging strength, so that the plugging rate is improved.

The application discloses a method for identifying the dispersion mode of oil and gas through a cap layer, and relates to the technical field of oil and gas reservoirs. The technical scheme is as follows: selecting a rock sample, carrying out particle fluorescence testing, and obtaining a parameter QGF-E representing the content of hydrocarbon adsorbed on the outside of a mineral particle and a parameter QGF-index representing the content of hydrocarbon in the inside of the mineral particle; identifying the dispersion mode of oil and gas through the cap layer according to the relationship between QGF-E and QGF-index, wherein if QGF-E is positively correlated with QGF-index, it indicates that the dispersion mode of oil and gas through the cap layer is slow percolation; and if QGF-index basically remains unchanged with the increase of QGF-E, it indicates that the dispersion mode of oil and gas through the cap layer is episodic rupture. The analysis and testing data obtained through the quantitative fluorescence testing of the cap layer are used to distinguish the dispersion mode of oil and gas through the cap layer by using the quantitative fluorescence data of the cap layer, so that the dispersion mode of oil and gas through the cap layer can be accurately identified, and the problems of randomness and multiple solutions in the prior art can be effectively avoided.

The invention relates to a method and an impact crusher for reducing the size of mineral particles with an impact crusher (1) comprising a housing (2) in which are provided a rotatable inner rotor (10) having a central axis and a rotatable outer rotor (11) provided coaxially with the inner rotor (10) and comprising a circumferential wall (24) having an impact section (26). A discharge space (12) is provided between the outer rotor (11) and the inner surface of the housing (2). The mineral particles are supplied to the inner rotor (10) while the inner and outer rotors (11) rotate in opposite directions about the central axis, and the mineral particles are displaced on the inner rotor (10) under the action of centrifugal force. Then, the mineral particles are thrown from the inner rotor (10) in a tangential direction towards the impact section (26) of the outer rotor (11) to reduce the size of the mineral particles upon impact to obtain impact-reduced mineral particles, and the impact-reduced mineral particles are removed from the outer rotor (11) along opposite axial sides of the impact section (26) of the circumferential wall (24) to obtain impact-reduced mineral particles. The mineral particles are discharged from the outer rotor (11) into a discharge space (12).