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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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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 8. Отображено 8.
07-08-2013 дата публикации

Roof contacting process in goaf filling treating procedure

Номер: CN103233771A
Принадлежит:

The invention relates to a roof contacting process in a goaf filling treating procedure and belongs to the technical field of mining engineering. The technical scheme of the roof contacting process in the goaf filling treating procedure includes: detecting a goaf to obtain the coordinate of the top point position of a top plate; drilling a filling drill hole at the top point position of the top plate, and performing cementing filling; installing a three-way plug valve on a filling pipe of the filling drill hole, and guiding a washing pipeline out on the filling pipe through the three-way plug valve; when the position with 1m away from the top point of the top plate is filled, extending the filling pipe to the position farthest from the filling drill hole, and simultaneously, arranging a 1-1.5m temporary retaining wall on the filling drill hole portion; when cement body is full, continuing to fill; and finally opening the three-way plug valve, guiding water away through the washing pipeline ...

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19-09-2012 дата публикации

Device for automatic penetration of wool tops and automatic oiling of comb box chain of gilling machine

Номер: CN102677235A
Принадлежит:

The invention provides a device for automatic penetration of wool tops and automatic oiling of a comb box chain of a gilling machine. The device structurally comprises a control circuit, a three-way electromagnetic valve, an oiling device, the comb box chain, an air tank, an air distributing valve, a can coiler, air pipes and an oil pipe, wherein the control circuit is connected with the three-way electromagnetic valve by a guide line; the three-way electromagnetic valve is provided with an air inlet A, an air outlet B and an air outlet C; the air distributing valve is provided with an air inlet D, an air outlet E and an air outlet F; the air inlet A of the three-way electromagnetic valve is connected with an air pump by the air pipe, and the air outlet B of the three-way electromagnetic valve is connected with the oiling device by the air pipe; an oil outlet of the oiling device is connected with the comb box chain by the oil pipe; the air outlet C of the three-way electromagnetic valve ...

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21-11-2012 дата публикации

Gel material used for unclassified tailing cement

Номер: CN102786241A
Принадлежит:

The invention discloses a gel material used for unclassified tailing cement, which comprises the following raw materials by weight ratio: 15.5%-17.5% of desulfurized gypsum, 3.5-5.5% of high calcium lime and 77%-81% of water quenching slag powder. According to the invention, desulfurized gypsum, high calcium lime and an additive are taken as a main material for preparing an high efficiency exciting agent, the high efficiency exciting agent can excite the water quenching slag powder having latent activity, thereby a gelling effect is generated, hardening is generated under the hydration effect, and the material can form a high-strength filling body. The exciting agent material of the gel material is desulfurized gypsum wasted by a power plant, the source of the material is wide, the price is low, no secondary processing is required, therefore the cost is low. The exciting agent and the water quenching slag powder are mixed to form the gel material; the water quenching slag is the ironmaking ...

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17-04-2013 дата публикации

Large-range goaf group filling method

Номер: CN103046955A
Принадлежит:

The invention relates to a large-range goaf group filling method and belongs to the technical field of mining engineering. According to the technical scheme, the method includes: dividing filling units, selecting filling material, and laying out filling pipes; calculating to determine the thickness of a filling retaining wall, performing site construction, reserving drain holes and filter holes in the filling retaining wall, and stacking a hillock inverted filter layer behind the filling retaining wall; laying filter pipes, allowing the filter pipes to extend out from the drain holes of the filling retaining wall; constructing a filling borehole, 133mm-150mm in diameter, at a highest point, applying the filling borehole as an overhead discharge point, ensuring roof contact, constructing the corresponding number of filling boreholes according to practical situation, and performing alternating filling. The large-range goaf group filling method has the advantages that filling process is simplified ...

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21-11-2012 дата публикации

Stability numerical analysis and optimization design method based on monitoring information in slope construction process

Номер: CN102789516A
Принадлежит:

The invention relates to a stability numerical analysis and optimization design method based on the monitoring information in a slope construction process, and belongs to the technical field of dynamic construction, optimization design and risk prevention and control of the geotechnical slope engineering. The technical scheme includes establishing slope equivalent parameter inversion and step construction time effect analysis of a current construction step based on the slope monitoring information to obtain an equivalent numerical model and a numerical simulation iterative step corresponding to the current construction step; performing the optimization design of a next-step slope construction scheme and the stability and reliability analysis and the risk prediction of the slope engineering on the basis; and performing regulation and control and construction according to predicted slope instability risks, and further developing deformation monitoring, dynamic design and optimization design ...

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03-10-2012 дата публикации

Needle loop maintenance replacement device for gilling machine

Номер: CN102704051A
Принадлежит:

The invention provides a needle loop maintenance replacement device for a gilling machine, which structurally comprises a working needle cylinder, a maintenance needle cylinder and a needle loop, wherein the right end of the working needle cylinder is connected with the gilling machine; an inserted blind hole is arranged at the center of the left end of the working needle cylinder; positioning blind holes are arranged at the edge of the left end of the working needle cylinder; the excircle of the working needle cylinder is longitudinally provided with working needle loop guide slots; an inserted boss is arranged in the middle of the right end of the maintenance needle cylinder; the inserted boss is correspondingly in inserted connection with the inserted blind hole at the left end of the working needle cylinder; positioning pins are arranged at the right end of the maintenance needle cylinder; the positioning pins are in inserted connection with the positioning blind holes at the left end ...

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27-02-2013 дата публикации

Method for testing caking degree of powdery filling cementitious material

Номер: CN102944646A
Принадлежит:

The invention discloses a method for testing the caking degree of a powdery filling cementitious material, belonging to the technical field of test methods of powdery materials. The method is used for testing the hardening degree of the powdery filling cementitious material, comprising the following steps: giving a calculation formula of the caking coefficient of the material; fully dispersing the material to be tested and uniformly mixing, and filling in a bucket; calculating the initial volume weight of the material; using a press machine to carry out low-speed pressure consolidation on the material to make the material dense; pouring the material out from the bucket at a normal speed, and testing the caking type of the material and the diameter and type of the cake; calculating the caking coefficient of the material according to the calculation formula of the caking coefficient of the material; and evaluating the caking degree of the material and the fluency of discharging according ...

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19-09-2012 дата публикации

High-efficiency filling mining method for controlling rock mass movement

Номер: CN102678119A
Принадлежит:

The invention relates to a high-efficiency filling mining method for controlling rock mass movement, and belongs to the technical field of mining. According to the technical scheme, the method comprises the following steps of: dividing an ore body into levels for mining, and mining along the levels from bottom to top; dividing panels along the strike of the ore body, stoping each panel of the ore body through two steps, namely stoping charmers and stoping ore pillars, wherein cemented fill after stage open-stope is adopted in the process of stoping the charmers, and non-cemented fill is adopted in the process of stoping the ore pillars; arranging strip pillars among the panels, wherein panel intervening pillars are pillars arranged at unequal spacing; and optimizing and obtaining the sizes of the panel intervening pillars, the ore pillars and the strip pillars through setting up an optimization mode. The high-efficiency filling mining method has the advantages that the stability of stope ...

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