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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 26. Отображено 26.
02-12-2015 дата публикации

Gear pump self -cooled retarding braking device of high -rise rescue lift of non - wound form

Номер: CN0204823983U
Автор: LIU GUANGTIAN, MAO HAIJUN
Принадлежит:

The utility model provides a gear pump self -cooled retarding braking device of high -rise rescue lift of non - wound form, its main points are: it is including rotatory assembly, static assembly and coolant liquid from circulation system, static assembly includes that the outer end in speed reducer flange shaft hole connects the sealed chamber of circle box -like, and in bearing endotheca that the reducer output axle passed the shaft hole got into the sealed chamber of circle box -like, rotatory assembly was installed in circle box -like sealed chamber, the round water annulus is established to the parietal periphery in the sealed chamber of circle box -like, the coolant liquid drives the coolant liquid self -loopa of annular water course from circulation system's hydraulic gear pump's gear shaft key -type connection reducer output axle, hydraulic gear pump. The utility model discloses an actively the effect is: to slow down and brake function collection in an organic whole, reduce the ...

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24-08-2011 дата публикации

Ultra-deep drilling bit apparatus for high tailing dam

Номер: CN0101481993B
Принадлежит:

The invention discloses a drilling head device used for ultra-deep drilling of high tailing dam, which is characterized in that four pairs of V-shaped grooves are symmetrically opened on a bottom lip surface of a tyre foundation, the size of the V-shaped groove is supposed to match the diameter of the bottom part of cemented carbide, four round grooves are arranged on the central axis of the V-shaped grooves at the lateral side of the tyre foundation, the size of the round grooves is supposed to match the diameter of surface embedded alloy, a water gap is arranged at the lateral bottom surface of the tyre foundation, thread tapping is carried out on the upper part of the drilling head, the cemented carbide is arranged on the bottom lip surface of the tyre foundation, the surface embedded alloy is arranged at the lateral side of the tyre foundation; the cemented carbide is welded and embedded in the V-shaped grooves on the bottom lip surface of the drilling head, an inner exit lip is arranged ...

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09-06-2023 дата публикации

Natural fracture state dynamic monitoring method under true triaxial hydraulic fracturing and related equipment

Номер: CN116241248A
Принадлежит:

The invention discloses a method for dynamically monitoring the state of a natural fracture under true triaxial hydraulic fracturing and related equipment, relates to the field of fracture slippage and opening monitoring, and mainly aims to solve the problem that the change rule of the fracture along with various experimental parameters in the experimental process cannot be monitored in real time in the prior art. The method comprises the steps that dynamic parameters of a sample under the hydraulic fracturing condition are obtained based on a monitoring system, and the sample is a tight reservoir simulation sample with fracture characteristics; and determining the crack opening and the crack slippage of the sample based on the dynamic parameters of the sample fed back by the monitoring system. The method is used for the dynamic monitoring process of the natural fracture state under true triaxial hydraulic fracturing.

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18-07-2023 дата публикации

Visual fracturing experiment system and method for fracture propagation mechanism of fracture-vuggy carbonate rock

Номер: CN116448568A
Принадлежит:

The invention discloses a fracture-vuggy carbonate rock fracture propagation mechanism visual fracturing experiment system and method. The fracture-vuggy carbonate rock fracture propagation mechanism visual fracturing experiment system comprises a fracture-vuggy sample, a pressurization clamping assembly, a clamping assembly and a camera shooting assembly. The pressurization clamping assembly simulates ground stress conditions of different stratum environments in a pressurization mode, the clamping assembly clamps a fracture-cavity sample, the fracture-cavity sample is a three-dimensional solid model established according to site ct point cloud data, an expansion image of a simulated fracture in the hydraulic fracturing process is captured in multiple angles through a high-speed camera, and the fracture-cavity sample is subjected to fracture simulation. And carrying out distribution characteristic analysis on full-field stress or deformation by adopting a DIC. The hydraulic fracturing experiment ...

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14-06-1995 дата публикации

Single air-supply palm type first-aid respirator

Номер: CN0001103596A
Автор: HAIJUN MAO, MAO HAIJUN
Принадлежит:

The first-aid respirator designed for emergency treatment mainly consists of air source inlet, airflow outlet, output flow choke, safety valve, airflow controller and controlling amplifier. Being small and light and needing only one air source, the said first-aid respirator is suitable for various medical units.

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15-07-2009 дата публикации

Ultra-deep drilling bit apparatus for high tailing dam

Номер: CN0101481993A
Принадлежит:

The invention discloses a drilling head device used for ultra-deep drilling of high tailing dam, which is characterized in that four pairs of V-shaped grooves are symmetrically opened on a bottom lip surface of a tyre foundation, the size of the V-shaped groove is supposed to match the diameter of the bottom part of cemented carbide, four round grooves are arranged on the central axis of the V-shaped grooves at the lateral side of the tyre foundation, the size of the round grooves is supposed to match the diameter of surface embedded alloy, a water gap is arranged at the lateral bottom surface of the tyre foundation, thread tapping is carried out on the upper part of the drilling head, the cemented carbide is arranged on the bottom lip surface of the tyre foundation, the surface embedded alloy is arranged at the lateral side of the tyre foundation; the cemented carbide is welded and embedded in the V-shaped grooves on the bottom lip surface of the drilling head, an inner exit lip is arranged ...

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15-02-2012 дата публикации

Cr-containing creep-resisting extruded zinc alloy and preparation method thereof

Номер: CN0101914704B
Принадлежит:

The invention discloses a Cr-containing creep-resisting extruded zinc alloy, belonging to the technical field of metal material manufacture. The alloy comprises the following components by mass percent: 0.05-3.0% of Cr, 0.5-2.5% of Cu, 0.1-0.3% of Ti and the balance of Zn and impurities which accounts for no more than 0.05% of the total amount. The alloy also can comprise 0.1-1.0% of Al by mass. The preparation method is implemented as follows: smelting by adopting a coverage protective method at the temperature of 630-720 DEG C, adding the alloy elements respectively in a form of pure Zn, pure Al and intermediate alloys of Cu-Cr, Zn-Cu and Zn-Ti, casting at the temperature of 450-500 DEG C after the alloy solution is mixed evenly, homogenizing ingots for 6-10h at the temperature of 360-380 DEG C, performing extrusion forming at the temperature of 240-320 DEG C with the extrusion ratio of 15-38, and annealing for 1-3h at the temperature of 180-220 DEG C. The invention has reasonable component ...

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10-12-2014 дата публикации

Stepping linkage automatic feeding quilting machine

Номер: CN104195748A
Автор: MAO HAIJUN
Принадлежит:

The invention provides a stepping linkage automatic feeding quilting machine which comprises a lifting beam, a machine body and a roller shaft. The lifting beam is provided with sewing machine heads, an induction probe is arranged in the machine body between the two adjacent sewing machine heads, the two ends of the lifting beam are connected with cams at the lower ends of the lifting beam through connection rods, a driving chain wheel is connected with a motor through a transmission chain, one side of a rocker always abuts against one end of each connection rod, a stepping wheel and a stepping chain wheel are driven to rotate through a stepping wheel linkage mechanism by means of swinging of the rocker, the transmission chain wound on the stepping chain wheel is S-shaped and winds around two roller shaft chain wheels so that the two roller shaft chain wheels can rotate oppositely, and transmission chain pressing mechanisms connected with the transmission chain are arranged above the cams ...

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20-07-2011 дата публикации

Chemical siltation resisting drainage device for tailing dam

Номер: CN0101629417B
Принадлежит:

The invention discloses a chemical siltation resisting drainage device for a tailing dam, comprising a drainage pipe, a siltation resisting trough, water seepage holes, water seepage troughs and geotextiles. The invention is characterized in that the drainage pipe is a circular pipe, and the end part of the pipe is provided with the water seepage troughs and the water seepage holes, and the waterseepage troughs are tightly wrapped by the geotextiles; the siltation resisting trough is a rectangular box body having no cover, and the front end of the box body is provided with a circular hole having the same pipe diameter as the drainage pipe; the drainage pipe is obliquely arranged in the siltation resisting trough of the box body at an inclination angle so as to prevent the geotextiles from generating chemical siltation and ensure that the dam body can drain normally. The chemical siltation resisting drainage device has the advantages of simple structure, high effectiveness, low cost and ...

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30-05-2023 дата публикации

Novel efficient mixing and adjusting system

Номер: CN116173806A
Принадлежит:

The invention discloses a novel efficient mixing and adjusting system, and relates to the technical field of ammonium nitrate production devices. The device comprises a dilute nitric acid tank, a primary mixer, an ammonia water tank and a secondary mixer, a nitric acid loop pipe is welded to the outer surface of the dilute nitric acid tank, the outer surface of the nitric acid loop pipe is connected with the inner surface of the primary mixer, the outer surface of the nitric acid loop pipe is connected with the inner surface of a nitric acid pump output pipe, and a nitric acid pump is installed on the outer surface of the dilute nitric acid tank; an ammonia water loop pipe is welded to the inner surface of the ammonia water tank, an ammonia water pump is installed on the outer surface of the ammonia water tank, and the outer surface of the ammonia water loop pipe is connected with the inner surface of an ammonia water pump output pipe. According to the calcium nitrate production device, ...

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15-12-2010 дата публикации

Cr-containing creep-resisting extruded zinc alloy and preparation method thereof

Номер: CN0101914704A
Принадлежит:

The invention discloses a Cr-containing creep-resisting extruded zinc alloy, belonging to the technical field of metal material manufacture. The alloy comprises the following components by mass percent: 0.05-3.0% of Cr, 0.5-2.5% of Cu, 0.1-0.3% of Ti and the balance of Zn and impurities which accounts for no more than 0.05% of the total amount. The alloy also can comprise 0.1-1.0% of Al by mass. The preparation method is implemented as follows: smelting by adopting a coverage protective method at the temperature of 630-720 DEG C, adding the alloy elements respectively in a form of pure Zn, pure Al and intermediate alloys of Cu-Cr, Zn-Cu and Zn-Ti, casting at the temperature of 450-500 DEG C after the alloy solution is mixed evenly, homogenizing ingots for 6-10h at the temperature of 360-380 DEG C, performing extrusion forming at the temperature of 240-320 DEG C with the extrusion ratio of 15-38, and annealing for 1-3h at the temperature of 180-220 DEG C. The invention has reasonable component ...

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30-06-2023 дата публикации

Multi-vehicle-type cold chain vehicle pickup path optimization method

Номер: CN116362651A
Принадлежит:

The invention relates to the field of cold chain vehicle goods taking path optimization, and discloses a path optimization method for first one-kilometer goods taking of agricultural products by adopting multiple vehicle types, which comprises the following steps of: proposing a first one-kilometer multi-vehicle type vehicle goods taking mode of an agricultural product cold chain, and determining problem constraint conditions; acquiring position coordinates, demand quantity, service time windows and service time data of the agricultural product producing area customer points; a multi-vehicle-type cold chain vehicle goods taking path optimization model is constructed with the purpose of minimizing the sum of the fixed cost, the transportation cost and the refrigeration cost of the goods taking vehicle and the movable refrigerator; and designing a variable neighborhood-genetic hybrid algorithm to solve the multi-vehicle-type cold chain vehicle pickup path optimization model, and obtaining ...

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15-08-2023 дата публикации

Natural fracture dynamic monitoring method under true triaxial hydraulic fracturing and related equipment

Номер: CN116591653A
Принадлежит:

The invention provides a natural fracture dynamic monitoring method under true triaxial hydraulic fracturing and related equipment. The method comprises the steps that on the basis of a hydraulic pressure test, dynamic parameters of a natural fracture sample under true triaxial hydraulic fracturing are obtained through an optical fiber sensor, and the sample comprises a shaft; and based on the dynamic parameters, crack slippage of the sample and deformation quantity of the shaft are determined. The influence of parameters such as natural fracture types, fracturing fluid displacement and fracture intersection angles on the deformation quantity of the shaft can be studied, so that quantitative evaluation is achieved, and technical support is provided for fracturing horizon optimization and fracturing construction site parameter optimization design. And meanwhile, the method has certain engineering significance for promoting the horizontal shaft damage prevention theory and technology and ...

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23-03-2018 дата публикации

A agitating unit for composite processing of concrete additive

Номер: CN0207128070U
Автор: MAO HAIJUN

The utility model provides an agitating unit for composite processing of concrete additive, including motor, stirring wing, feed cover, even basin, inlet tube, automatic water installation, agitator,ejection of compact lid, base, support and the nut of adding, the automatic water installation that adds includes water tank, valve, water pipe, level sensor, electric cabinet, automatic switch, handswitch, the stirring wing includes the main tributary pole and divides branch two parts, dividing branch and concavo -convex agitator side common cooperation, making the stirring of material more even, add ration that the water installation carries out water and add and get through automatic, saved the artifical manual control water yield and added the step of getting, greatly improved productionefficiency, the bottom of adjacent support respectively is equipped with the nut that can adjust from top to bottom, can carry out the regulation of support length through adjusting nut.

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23-06-2023 дата публикации

Crushed zone well wall stability evaluation method

Номер: CN116296848A
Принадлежит:

The invention discloses a fracture zone well wall stability evaluation method. The method comprises the following steps: preparing a cubic sample containing fracture zone characteristics, wherein the cubic sample is used for performing a borehole wall stability test; a borehole is drilled in the cubic sample, a simulated fracture zone monitoring system is arranged in the borehole, and the cubic sample is placed in a true triaxial loading chamber; after drilling fluid is injected into the borehole, fracture zone borehole wall stability tests under different ground stress conditions are carried out; according to the fracture zone borehole wall stability tests under different ground stress conditions, epoxy resin is injected into a borehole, and after the epoxy resin is shaped, quantitative evaluation of fracture zone damage characteristics is carried out on the epoxy resin. According to the technical scheme provided by the invention, quantitative evaluation of the fracture zone well wall ...

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24-12-2014 дата публикации

Stepping linkage transmission mechanism for quilt sewing machine

Номер: CN104233657A
Автор: MAO HAIJUN
Принадлежит:

The invention provides a stepping linkage transmission mechanism for a quilt sewing machine. The stepping linkage transmission mechanism comprises an ascending and descending cross beam, a machine body and a roll shaft, wherein the two ends of the ascending and descending cross beam are respectively connected with synchronously rotating cams arranged on the side wall of the machine body arranged at the lower end of the ascending and descending cross beam through a connecting rod, the circle center of the cam is coaxially connected with a driving chain wheel, the driving chain wheel is connected with a motor output chain wheel, one side of a rocker arm always leans against one end of the connecting rod, the front end of a stepping wheel is provided with a stepping rocker arm, one end of the stepping rocker arm is rotationally connected with a center shaft of the stepping wheel, the stepping rocker arm and the rocker arm are movably connected through a telescopic connecting rod, an arc-shaped ...

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23-06-2023 дата публикации

Concrete mixing equipment

Номер: CN116277490A
Принадлежит:

The invention provides concrete stirring equipment, and solves the technical problems in the background art that part of existing equipment cannot discharge concrete, and residual concrete still exists in a stirring box. The concrete stirring equipment comprises a stirring frame, a stirring cavity with an upward opening is formed in the stirring frame, a power shaft is rotationally arranged on the bottom wall of the stirring cavity, a stirring plate is fixedly arranged at the position, located at the top end of the stirring cavity, of the power shaft, two opposite bent stirring rollers are fixedly arranged on the stirring plate, and a containing cavity is formed in the stirring plate in a left-right penetrating mode. Two transmission shafts are rotationally arranged on the rear wall of the storage cavity, and transmission gears which are coaxial with the transmission shafts and are meshed with the transmission shafts are fixedly arranged on the two transmission shafts, so that concrete ...

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28-04-2023 дата публикации

Method for monitoring slippage of block fault

Номер: CN116026250A
Принадлежит:

The invention discloses a sliding amount monitoring method for a block fault. According to the invention, the physical simulation experiment of the fault-containing rock is carried out, so that the mechanical stability of the fault can be effectively monitored in the injection-production process of the gas storage. And the monitoring optical fiber is arranged in the fault-containing rock core, so that information capture of infinitesimal displacement can be realized, and favorable support is provided for establishment of a fault slippage or fault activation mechanism and a critical judgment criterion. The principle of the optical fiber monitoring method used in the invention is that Brillouin scattering in an optical fiber has a good linear relationship with temperature and strain, and a BOTDA technology based on a stimulated Brillouin scattering amplification effect is used to realize measurement of strain or temperature along the optical fiber. And the deformation condition of fault activation ...

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02-12-2015 дата публикации

Plunger pump self -cooled retarding braking device of high -rise rescue lift of non - wound form

Номер: CN0204823984U
Автор: LIU GUANGTIAN, MAO HAIJUN
Принадлежит:

The utility model provides a plunger pump self -cooled retarding braking device of high -rise rescue lift of non - wound form, its main points are: it is including rotatory assembly, static assembly and coolant liquid from circulation system, static assembly includes that the outer end in speed reducer flange shaft hole connects the sealed chamber of circle box -like, and in bearing endotheca that the reducer output axle passed the shaft hole got into the sealed chamber of circle box -like, rotatory assembly was installed in circle box -like sealed chamber, the round water annulus is established to the parietal periphery in the sealed chamber of circle box -like, the coolant liquid from the eccentric wheel key -type connection of circulation system's plunger type water pump at the reducer output axle, the coolant liquid self -loopa of plunger type water pump drive water annulus. The utility model discloses an actively the effect is: to slow down and brake function collection in an organic ...

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25-04-2023 дата публикации

Concrete stirring device and using and processing method thereof

Номер: CN116001094A
Принадлежит:

The invention provides a concrete stirring device which comprises a barrel-shaped stirring box body and reinforcing supporting legs, the reinforcing supporting legs are installed at the bottom of the stirring box body, a driving motor is arranged at the top of the stirring box body, a connecting rod is fixedly arranged at the output end of the driving motor, and a hollow first rotating rod with two through ends is rotationally arranged at the top of the stirring box body; the other end of the first rotating rod vertically slides downwards, penetrates through the top of the stirring box body and extends into the stirring box body, a first stirring assembly is fixedly arranged on the side wall of the first rotating rod, a second rotating rod is further arranged on the top of the stirring box body, and the second rotating rod slidably penetrates through the first rotating rod and is rotationally connected with the bottom of the stirring box body; a second stirring assembly with the rotating ...

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04-04-2023 дата публикации

Image processing method and device, electronic equipment and storage medium

Номер: CN115914848A
Принадлежит:

The invention relates to an image processing method and device, electronic equipment and a storage medium. To-be-processed images are acquired and displayed for multiple times. And determining a corresponding image brightness value according to the operation condition of the user on the to-be-processed image or the pixel value of the to-be-processed image when the to-be-processed image is acquired each time. And determining a historical brightness value sequence including a preset initial brightness value and a historically acquired image brightness value corresponding to the to-be-processed image, so as to determine an image exposure value of the to-be-processed image according to the image brightness value and the historical brightness value sequence. And in response to the condition that the difference between the image exposure value and a preset target exposure value is greater than a difference threshold, adjusting an exposure parameter of the to-be-processed image according to the ...

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08-09-2020 дата публикации

Concrete finished product hopper

Номер: CN0111634564A
Принадлежит:

The invention provides a concrete finished product hopper, and relates to the technical field of concrete stirring. The concrete finished product hopper is characterized in that the lower end of an upper hopper is provided with an upper assembly edge, and the upper end of a lower hopper is provided with a lower assembly edge; an assembly space is reserved between the upper assembly edge and the lower assembly edge, and the assembly space is provided with a vibration isolation pad made from an elastic material; an upper surface of the vibration isolation pad is hermetically attached to the lower surface of the upper assembly edge, and the lower surface of the vibration isolation pad is hermetically attached to the upper surface of the lower assembly edge; an upper positioning piece is arranged at the upper end of a sliding rod and attached to the upper surface of the upper assembly edge, and a lower positioning piece is arranged at the lower end of the sliding rod; and a vibration isolation ...

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18-03-2015 дата публикации

Personalized web page system and implementation method

Номер: CN104424249A
Принадлежит:

The invention relates to a personalized web page system and an implementation method. The personalized web page implementation method comprises the following steps: indentifying the identity of the user using the browser for browsing the web page; judging whether the storage unit stores the web page customization information of the user; when storing the web page customization information of the user, capturing the web page subject content required by the user for display according to the web page customization information of the user; arranging the captured web page subject content customized by the user and controlling the browser for displaying the arranged customized web page content. The method captures the web page content required by the user from the web page server for offering the personalized web page service for the user by indentifying the identity of the user and obtaining the personalized web page information customized web page content from the storage unit.

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04-04-2023 дата публикации

Infrared baking lamp

Номер: CN115887935A
Принадлежит:

The invention discloses an infrared baking lamp which comprises a support, a main machine, a connecting arm and a baking lamp holder. The top end of the stand column is fixedly connected with a platform. A temperature meter is fixedly arranged on one side of the upper surface of the platform; the connecting arm comprises a first connecting rod, a second connecting rod and a telescopic rod which are hinged to the rotating seat, and one end of the telescopic rod is detachably connected with a baking lamp cap; a lampshade used for adjusting the irradiation area of the infrared lamp holder is fixedly connected to the exterior of the lamp shell. A smoke sensor is further fixedly arranged in the lamp shell and electrically connected with a negative pressure air suction device. Infrared lamp baking is carried out on a skin flap transplantation part in an all-dimensional mode, and therefore the skin flap transplantation survival rate is guaranteed; and the temperature of the lamp baking position ...

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30-06-2023 дата публикации

Three-dimensional fracture shape reconstruction method after acid fracturing of rock sample

Номер: CN116363321A
Принадлежит:

The invention provides a three-dimensional fracture shape reconstruction method after acid fracturing of rock samples. The method comprises the following steps: acquiring a plurality of different rock samples; slicing each rock sample, respectively extracting a slice plane image of each rock sample, converting the slice plane image into a black-and-white image, and dividing the slice images of each rock sample into one group; identifying an acid fracturing crack corresponding to each slice image; constructing a three-dimensional model for each rock sample according to the acid fracturing crack corresponding to each group of slice images; according to the three-dimensional model of each rock sample, respectively identifying the crack type of each rock sample; the crack type comprises an X-type node crack, a Y-type node crack and an I-type node crack; and according to the crack types corresponding to all the rock samples, constructing a crack form model for each rock sample, and depicting ...

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20-01-2010 дата публикации

Chemical siltation resisting drainage device for tailing dam

Номер: CN0101629417A
Принадлежит:

The invention discloses a chemical siltation resisting drainage device for a tailing dam, comprising a drainage pipe, a siltation resisting trough, water seepage holes, water seepage troughs and geotextiles. The invention is characterized in that the drainage pipe is a circular pipe, and the end part of the pipe is provided with the water seepage troughs and the water seepage holes, and the water seepage troughs are tightly wrapped by the geotextiles; the siltation resisting trough is a rectangular box body having no cover, and the front end of the box body is provided with a circular hole having the same pipe diameter as the drainage pipe; the drainage pipe is obliquely arranged in the siltation resisting trough of the box body at an inclination angle so as to prevent the geotextiles from generating chemical siltation and ensure that the dam body can drain normally. The chemical siltation resisting drainage device has the advantages of simple structure, high effectiveness, low cost and ...

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