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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 5. Отображено 5.
14-01-2009 дата публикации

Fast prediction method for crossdrift and pitshaft coal uncovering burst fatalness

Номер: CN0101344514A
Автор: JIANG CHENGLIN, CHEN SONGLI, LU SHUWEN, LI XIAOWEI, TANG JUN, CHEN YUJIA, XIE QINGXUE, CHENGLIN JIANG, SONGLI CHEN, SHUWEN LU, XIAOWEI LI, YUJIA CHEN, QINGXUE XIE
Принадлежит:

The invention discloses a quick prediction technique of protrusion danger in the crossdrift and pitshaft coal uncovering, implements quick gas pressure measurement of a coal bed in front of a working face of a crossdrift or a pitshaft through rock strata grouting and rock strata densification, and collects a complete coal core of the coal bed with a coring device, thus determining the position of a soft bed and obtaining a coal sample in the soft bed, and after the collecting of the complete coal core is finished, a thermometer is sent into the coal bed through a coring pore and taken out after occluded for half an hour, the temperature of the coal bed is read, an initially released gas dilatation energy index Wp of the collected coal sample in the soft bed of the coal core is measured, and whether the protrusion is generated when uncovering the coal bed of the crossdrift or the pitshaft and protrusion intensity are determined by comparing the measured initially released gas dilatation ...

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Номер записи: 1
28-01-2009 дата публикации

Coring method and apparatus for extracting downhole projecting coal bed integral coal core

Номер: CN0101353952A
Автор: JIANG CHENGLIN, CHEN SONGLI, LU SHUWEN, LI XIAOWEI, TANG JUN, CHEN YUJIA, XIE QINGXUE, CHENGLIN JIANG, SONGLI CHEN, SHUWEN LU, XIAOWEI LI, YUJIA CHEN, QINGXUE XIE
Принадлежит:

The invention relates to a coring method for collecting the complete coal core of an outburst coal seam, and a device thereof; after a drilling machine enters the coal seam by drilling a rock hole in the coal seam by the rock formation, the coring device is mounted to advance forward while rotating and alloy sheets embedded on a drill bit begins to cut the coal seam; the cut-out cylindrical coal cores are sent to a suspending stable semi-closed inner tube for protection; in the rotating process, an outer tube with a helical blade can transmit coal slacks produced in the drilling process and cut soft-stratification coal pressed into coal holes at the same time, thereby keeping the coal slack removal channel clear and smooth; when the drilling depth is equal to the length of the semi-closed inner pipe, a drilling rod is withdrawn, and a snap ring on a bit body clamps and takes out the coal core; the coring device continues to drill in the same way, and the complete coal core of the whole ...

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Номер записи: 2
29-08-2023 дата публикации

Circulating air flow type liquid nitrogen fracturing device and method

Номер: CN116658142A
Автор: ZHANG LEI, TIAN YUECHEN, LIU YONGCHENG, GUO LUCHENG, YUAN XIAOCHUAN, TIAN SHIXIANG, XIE QINGXUE, HAO DINGYI
Принадлежит:

The circulating air flow type liquid nitrogen fracturing device comprises an impact part, the impact part comprises a heat insulation part, the heat insulation part is arranged on the top coal wall of a drill hole and provided with a shell in a penetrating mode, the bottom face of the shell is arranged to be an open end, a heating part is arranged at the bottom of an inner cavity of the shell, and an impact part is arranged at the bottom of the heating part; a heating cavity is formed between the outer wall of the heating part and the inner wall of the shell, a plurality of fourth valves are arranged on the outer wall of the shell between the heating cavity and the heat insulation part in the circumferential direction, and third valves are arranged in the areas, between the fourth valves and the heat insulation part, in the shell. The external connection part comprises a liquid nitrogen pump station and a gas extraction station, the liquid nitrogen pump station is communicated with the ...

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Номер записи: 3
04-01-2012 дата публикации

Fast prediction method for crossdrift and pitshaft coal uncovering burst fatalness

Номер: CN0101344514B
Автор: LI XIAOWEI, XIE QINGXUE, JIANG CHENGLIN, CHEN YUJIA, CHEN SONGLI, TANG JUN, LV SHUWEN, XIAOWEI LI, QINGXUE XIE, CHENGLIN JIANG, YUJIA CHEN, SONGLI CHEN, SHUWEN LV
Принадлежит:

The invention discloses a quick prediction method of protrusion danger in the crossdrift and pitshaft coal uncovering, implements quick gas pressure measurement of a coal bed in front of a working face of a crossdrift or a pitshaft by rock strata grouting and rock strata densification, and collects a complete coal core of the coal bed with a coring device, thus determining the position of a soft bed and obtaining a coal sample in the soft bed, and after the collecting of the complete coal core is finished, a thermometer is sent into the coal bed through a coring pore and taken out after occluded for half an hour, the temperature of the coal bed is read, an initially released gas dilatation energy index Wp of the collected coal sample in the soft bed of the coal core is measured, and whether the protrusion is generated when uncovering the coal bed of the crossdrift or the pitshaft and protrusion intensity are determined by comparing the measured initially released gas dilatation energyindex ...

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Номер записи: 4
22-08-2023 дата публикации

Coal seam cracking and permeability increasing system and method based on chemical cold and heat circulation

Номер: CN116624210A
Автор: ZHANG LEI, LIU XINYUAN, LUO LIANG, LI JIACHENG, ZENG SHIPAN, TIAN SHIXIANG, XIE QINGXUE, YE ZHIWEI
Принадлежит:

The invention discloses a coal seam cracking and permeability increasing system and method based on chemical cold and hot circulation, and relates to a device capable of improving the gas permeability and desorption amount of a coal seam and reducing the blocking problem in drainage and mining. The system mainly comprises a drill bit arranged at the foremost end of a drill rod, a positioner located in the drill bit and a hole packer arranged at the rear end of the drill rod; the gas supply pipe, the carbon gas pipe, the liquid nitrogen pipe and the hydrochloric acid pipe are located on the drill rod, the perforation pipe column is located behind the drill bit, and the liquid nitrogen is changed into nitrogen after absorbing heat to fracture a coal seam and forms mixed gas with carbon dioxide injected in the next step to displace gas; the gas displacement effect of mixed gas of nitrogen and carbon dioxide is better than that of single gas displacement. And through perforation, the diffusion ...

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Номер записи: 5