20 results about "Mineral matrix" patented technology

A multi-component inorganic capsule anchoring system can be used for chemically fastening anchors, bolts, screw anchors, screw bolts, and post-installed reinforcing bars in mineral substrates. The multi-component inorganic capsule anchoring system contains a curable powdery ground-granulated blast-furnace slag-based component A, and an initiator component B in aqueous-phase for initiating a curing process. The powdery ground-granulated blast-furnace slag-based component A contains further silica dust. The component B contains an alkali-silicate component and optionally a plasticizer.

The present disclosure relates to a rock drilling arrangement, a rock drilling rig and a method The rock drilling arrangement comprises a drill string extending along a central axis and a drill head comprising at least two electrodes located at a lower end of said drill string. The drill head is configured to be applied to a mineral substrate and form a drilled hole in the mineral substrate by passing a high voltage current pulse between the at least two electrodes via the mineral substrate. The rock drilling arrangement further comprises a cylindrical casing encompassing the drill head and encompassing at least a lower poron of the drill string extending along the central axis to the drill head. The rock drilling arrangement also includes a fluid transfer arrangement comprising a fluid supply conduit to supply a liquid fluid to an applicaon area of the drill head. The cylindrical casing has a posion aligned to the posion of the drill head and is configured to be adjacent to the mineral substrate during drilling.

Systems and methods are provided for separation / extraction of rare earth elements (REE), yttrium (Y), and / or radium (Ra) from phosphogypsum. Extraction of REE, Y, and / or Ra can be achieved by treating phosphogypsum with acidic aqueous media at ambient temperature in a reactor at low liquid:solid (L:S) ratios (e.g., L:S in a range of from 1:1 to 15:1), followed by ion exchange chromatography or solvent extraction of relevant anions and / or cations to ensure that the mineral hosts remain undersaturated while the gypsum remains saturated in the solvent. Grinding of the phosphogypsum (e.g., in a slurry mill) can be performed to ensure that minor mineral inclusions are fully accessed by the solvent.

A pulsed power drilling system for crushing a mineral matrix and a method of crushing a mineral matrix by passing a pulsed current through the mineral matrix via at least one fluid zone that is at least partially ionized by using microwave radiation. The disclosed pulsed power drilling systems and methods use microwave radiation for at least partially ionizing a fluid region extending between an electrode and a surface of a mineral matrix. The disclosed pulsed power drilling systems and methods may be applied, for example, in rock drilling, concrete processing, mineral processing, and continuous mining. The present disclosure further relates to a drilling machine comprising the pulsed power drilling system and a use of the pulsed power drilling system.

The present invention describes a multi-component inorganic anchoring system for chemically fastening anchors and post-installed reinforcements in a mineral matrix, comprising a curable powdered aluminum cement component A and an initiator component B for initiating a curing process in an aqueous phase, wherein the powdered aluminum cement component A is an aluminum cement component based on powdered calcium aluminate cement, and wherein component B comprises an accelerator component and water, characterized in that at least a portion of the calcium aluminate cement contained in component A has an average particle size in the range of 0.5 to 15 [mu] m. Furthermore, the present invention relates to the use of a calcium aluminate cement having an average particle size in the range of 0.5 to 15 [mu] m in a multi-component inorganic anchoring system for increasing the load value, and to a method for chemically fastening anchoring members, preferably metal anchors and post-installed reinforcements, in a mineral matrix, the mineral matrix is such as a structure made of bricks, concrete, pervious concrete or natural stone.

The invention discloses a porosity fluid filled rock physical modeling method and device, and the method comprises the steps: building a mixed mineral matrix model according to the elastic information of a mixed mineral matrix; adopting a differential equivalent medium method to obtain a mixed mineral matrix containing the pore saturated fluid, and constructing a mixed mineral rock model containing the pore saturated fluid; adopting a differential equivalent medium method to obtain a mixed mineral matrix containing pore saturated fluid and micro-fracture saturated fluid, and constructing a mixed mineral rock model containing the pore saturated fluid and the micro-fracture saturated fluid; adding crack saturated fluid into a mixed mineral matrix containing pore saturated fluid and micro-crack saturated fluid, and calculating corresponding rock elastic characteristics; and obtaining a rock physical model according to the rock elastic characteristics. According to the method, the problem that common rock physical modeling is difficult due to various pore types can be solved.

The application relates to the technical field of soil remediation, and particularly discloses an environment-friendly soil remediation composition and a preparation method thereof. The environment-friendly soil remediation composition is prepared from the following raw materials in parts by mass: calcined mineral matrix 25-45 parts, biochar 10-20 parts, humic acid 5-10 parts, potassium-mineral-source fulvic acid 3-8 parts, pre-fermented substance 10-20 parts, wood residue 5-10 parts, pine scale 3-6 parts, attapulgite or / and bentonite 3-8 parts; the calcined mineral matrix is specifically prepared by mixing diatomite and shale and then performing calcination treatment; and the pre-fermented substance is prepared by taking residue of bacteria, traditional Chinese medicine residue and cottonseed meal as raw materials, mixing the raw materials, adding water and a compound bacterial agent, and then performing fermentation. The environment-friendly soil remediation composition prepared by the application has good remediation capacity for divalent heavy metal ions in soil.

According to the pH detection cat litter based on the plant particles and the preparation method of the pH detection cat litter based on the plant particles, the plant starch particles with the neutral pH are selected as inner cores, and interference of traditional mineral matrix alkalinity deviation on the detection accuracy is effectively avoided; in combination with a polymer coating fixed bromothymol blue and methyl red double indicator system, by utilizing the complementary characteristic of color change intervals of bromothymol blue and methyl red, the obvious color change from orange red to green is realized at the critical threshold of cat urine pH 6.8-7.0, and the problems of blurred color development and difficulty in identifying a transition region in the prior art are solved. Meanwhile, the storage stability and the liquid response speed of the indicator are effectively improved.

The present invention describes a multi-component inorganic anchoring system for chemically fastening anchors and post-installed reinforcements in a mineral matrix, comprising a curable powdered aluminum cement component A and an initiator component B for initiating a curing process in an aqueous phase, component A further comprising calcium carbonate and component B comprising an accelerator component and water, characterized in that the average particle size of the calcium carbonate contained in the component A is in the range of 0.5 to 150 [mu] m. Furthermore, the present invention relates to the use of calcium carbonate having an average particle size in the range of 0.5 to 150 [mu] m in a multi-component inorganic anchoring system for increasing the load value, and to a method for chemically fastening anchoring members, preferably metal anchors and post-installed reinforcements, in a mineral matrix, the mineral matrix is such as a structure made of bricks, concrete, pervious concrete or natural stone.

The application discloses a mineral rare earth element laser-induced breakdown spectroscopy rapid detection method and system, relates to the technical field of spectral analysis and determination, and comprises the following steps: controlling a pulsed laser to break a mineral sample to be measured to generate plasma, acquiring emission image data of the plasma in a preset time window, extracting form feature of iron ions and target rare earth ions in the emission image data, and obtaining corresponding iron ion initial velocity data, iron ion radius data, target rare earth ion initial velocity data and target rare earth ion radius data; the method has the beneficial effects that the method of relying on pure mathematical deconvolution or forcibly stripping overlapping spectra by using a complex software model is avoided, and the risk of error accumulation and model overfitting caused by nonlinear signal fluctuation when facing a complex mineral matrix is eliminated.

A pulsed power drilling tool (100) configured for passing a pulsed current through a mineral matrix (400) to crush the mineral matrix (400), the drilling tool (100) comprising: a pulsed power generator (110) for generating a high voltage current pulse; a drill bit (120) comprising at least one electrode pair (200), the at least one electrode pair (200) comprising at least a first electrode (201) and a second electrode (202), the first electrode (201) comprising a first solid electrode portion (203) and the second electrode comprising a second solid electrode portion (204), the first solid electrode portion (203) and the second solid electrode portion (204) being electrically connectable to a pulsed power generator (110); and at least one ionization device (130), the invention relates to a device (100) for generating at least one ionizing fluid zone (210, 210 ') extending at least from a first solid electrode portion (203) to a surface of a mineral substrate (400) and / or at least from a second solid electrode portion (204) to a surface of the mineral substrate (400), in order to allow a high-voltage current pulse (150) to pass through the at least one ionizing fluid zone (210, 210'). 210 ') and the mineral matrix (400) pass between the first solid electrode portion (203) and the second solid electrode portion (204), where the at least one ionization device (130) comprises at least one first laser emitting device (131) configured to generate a first laser beam (135) and to emit the first laser beam (135) in a direction towards the mineral matrix (400), the first laser beam (135) is configured to ionize a fluid present between the drill bit (120) and the mineral matrix (400) to form a first ionized fluid zone (210) of the at least one ionized fluid zone.

A method for extracting a metal of interest from a mineral substrate comprising: 1) providing a mineral substrate containing a metal of interest, 2) contacting the mineral substrate with a leaching medium comprising a pH reducing microorganism and / or an acid or proton produced by a pH reducing microorganism, and 3) recovering a leachate comprising the metal of interest.

Disclosed in the present disclosure are a rock physics modeling method and apparatus based on pore fluid filling. The method comprises: on the basis of elastic information of a mixed mineral matrix, constructing a mixed mineral matrix model; using a differential effective medium method to obtain a mixed mineral matrix containing a pore-saturating fluid, and constructing a mixed mineral rock model containing the pore-saturating fluid; using the differential effective medium method to obtain a mixed mineral matrix containing the pore-saturating fluid and a microfracture-saturating fluid, and constructing a mixed mineral rock model containing the pore-saturating fluid and the microfracture-saturating fluid; adding a fracture-saturating fluid to the mixed mineral matrix containing the pore-saturating fluid and the microfracture-saturating fluid, and calculating corresponding rock elastic characteristics; and obtaining a rock physics model on the basis of the rock elastic characteristics. The present disclosure can overcome difficulties in common rock physics modeling caused by the diversity of pore types.

The invention provides a preparation method of a modified ferruginous mineral loaded amphoteric polymer heavy metal adsorbent, which comprises the following steps: I, pretreating a mineral matrix, namely crushing, grinding and sieving ferruginous raw ore to obtain mineral powder, grinding and sieving biochar to obtain biochar powder, and calcining and activating the mineral powder and the biochar powder in a muffle furnace to obtain a modified ferruginous mineral loaded amphoteric polymer heavy metal adsorbent; naturally cooling to obtain a calcined modified mineral matrix; iI, preparing a precursor dispersion liquid, namely adding the calcined modified mineral matrix into an organic solvent, performing ultrasonic dispersion at room temperature for 20-40 minutes to obtain a uniform mineral dispersion liquid, sequentially adding an amino monomer, an acrylic monomer, a cross-linking agent and an initiator into the dispersion liquid, and uniformly stirring and mixing to obtain a polymerized precursor liquid; iII, in-situ polymerization reaction: continuously introducing nitrogen into the polymerization precursor liquid to remove air in the system, sealing, and carrying out in-situ free radical polymerization reaction in a constant-temperature environment to obtain a solid-phase product; and IV, post-treatment: sequentially washing the solid-phase product with methanol and deionized water for multiple times to remove unreacted monomer and oligomer impurities, and then drying, grinding and sieving to obtain the magnesium iron mineral loaded amphoteric polymer heavy metal adsorbent. The method can be flexibly applied according to actual wastewater pH characteristics, and the defect that a traditional adsorbent can only treat single type of heavy metal or needs to frequently adjust the pH is overcome.

The invention relates to the technical field of soil remediation, and particularly discloses an environment-friendly soil remediation composition and a preparation method thereof. The environment-friendly soil remediation composition is prepared from the following raw materials in parts by mass: 25 to 45 parts of calcined mineral matrix, 10 to 20 parts of charcoal, 5 to 10 parts of humic acid, 3 to 8 parts of mineral source potassium fulvic acid, 10 to 20 parts of pre-fermentation product, 5 to 10 parts of wood residue, 3 to 6 parts of pine bark and 3 to 8 parts of attapulgite or / and bentonite, the calcined mineral matrix is specifically prepared by mixing diatomite and shale and then performing calcination treatment; the pre-fermentation product is prepared by taking mushroom dregs, traditional Chinese medicine residues and cottonseed meal as raw materials, mixing, adding water and a complex microbial inoculant, and fermenting. The environment-friendly soil remediation composition prepared by the invention particularly has good remediation capability on divalent heavy metal ions in soil.

The present application relates to the technical field of oil and gas field development engineering combined with digital core technology, and discloses a tight reservoir oil and gas well fracturing breakage early warning method based on core CT scanning, comprising the following steps: obtaining a core sample of a target tight reservoir oil and gas well, performing high-resolution CT scanning on the core sample to obtain three-dimensional CT image data of the core; performing image preprocessing and segmentation processing on the three-dimensional CT image data, identifying the spatial distribution information of minerals, matrix, pores and natural fractures inside the core, and constructing a digital core model based on the spatial distribution information. The present application realizes three-dimensional quantitative characterization of minerals, pores and natural fractures in the tight reservoir core by combining high-resolution core CT scanning with a multi-scale segmentation algorithm, overcomes the deviation problem existing in the fracturing breakage prediction of traditional homogeneous models, and effectively reduces the breakage prediction error.

A unit for manufacturing a mineral matrix 1 produced from a powder and water comprising a mixing module 20, connected to a primary water circuit and to a powder collector 30, comprising a mixer 22 and

The application provides a sandstone and mudstone reservoir elastic modulus prediction method, a computing device and a storage medium. The method comprises the following steps: adding sandstone pores to a quartz matrix and adding mudstone pores to a mudstone matrix, combining the quartz matrix containing the sandstone pores and the mudstone matrix containing the mudstone pores to simulate a target sandstone and mudstone reservoir core sample, determining a first simulated elastic modulus of the quartz matrix containing the sandstone pores and a second simulated elastic modulus of the mudstone matrix containing the mudstone pores by using a DEM model; determining a first predicted elastic modulus of a skeleton model of the target sandstone and mudstone reservoir core sample and a second predicted elastic modulus of a mineral matrix of the target sandstone and mudstone reservoir core sample by using a Voigt-Ruess-Hill model; and predicting an elastic modulus of the target sandstone and mudstone reservoir when saturated with fluid by using a Gassmann equation according to the first predicted elastic modulus, the second predicted elastic modulus and an elastic modulus of the fluid in the target sandstone and mudstone reservoir core sample. The elastic modulus of the sandstone and mudstone reservoir can be accurately predicted.

The present disclosure relates to a method of operating a pulsed power drilling apparatus (100) comprising a liquid supply system (110), a liquid recovery system (120) and a drill bit (101), the method comprising: controlling the drill bit in a drilling operation to drill a hole (2) in a mineral matrix (1) by passing a high voltage current pulse (5) through the mineral matrix, controlling the liquid supply system to supply liquid (3) to the bore during the drilling operation; and controlling the liquid recovery system to recover liquid from the bore during the drilling operation wherein the liquid supply system and the liquid recovery system are controlled such that a level (4) of liquid within the bore is at a set target level (h) such that an upper portion (2a) of the bore is free of supplied liquid.

This invention relates to the technical field of combining oil and gas field development engineering with digital core technology, and discloses a method for early warning of fracturing in tight reservoir oil and gas wells based on core CT scanning. The method includes the following steps: acquiring a core sample from a target tight reservoir oil and gas well; performing high-resolution CT scanning on the core sample to obtain three-dimensional CT image data of the core; performing image preprocessing and segmentation on the three-dimensional CT image data to identify the spatial distribution information of minerals, matrix, pores, and natural fractures within the core; and constructing a digital core model based on the spatial distribution information. This invention achieves three-dimensional quantitative characterization of minerals, pores, and natural fractures in tight reservoir cores by combining high-resolution core CT scanning with a multi-scale segmentation algorithm; it overcomes the bias problem existing in traditional homogeneous models in fracturing prediction, effectively reducing fracture prediction errors.