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

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Применить Всего найдено 2. Отображено 2.
13-10-2010 дата публикации

Shaft sinking process for expansion well completion of mine vertical shaft with boring method

Номер: CN0101858218A
Автор: XIN CAI, FAXIANG CHEN, YUANKUN CHEN, BENJIE HU, GUANGYU HU, HAIBO HUANG, WENZENG LI, RIHUI LIU, ZHIQIANG LIU, JIN MA, JISHENG SHI, CHUAN WANG, CONGPING WANG, XIN WANG, HOUSHENG ZHAO, SHIYUN ZHAO, CAI XIN, CHEN FAXIANG, CHEN YUANKUN, HU BENJIE, HU GUANGYU, HUANG HAIBO, LI WENZENG, LIU RIHUI, LIU ZHIQIANG, MA JIN, SHI JISHENG, WANG CHUAN, WANG CONGPING, WANG XIN, ZHAO HOUSHENG, ZHAO SHIYUN
Принадлежит:

The invention relates to a shaft sinking process for a expansion well completion of mine vertical shaft with boring method, mainly solving the problems of large amount of equipments occupied, high engineering cost, low efficiency, slow velocity of well completion in current mine vertical shaft well completion and comprising the following steps: 1) drilling a shaft; 2) prefabricating a well wall; 3) sinking the well wall; and 4) filling the sunk well wall. In the step of drilling the shaft, the modes of a primary leading hole and a primary final expanding hole are used for well completion, which can greatly improve the well completion speed of the shaft sinking with the boring method by about 20%; a primary leading hole is used for drilling only, which decreases the amount of equipment occupied, reduces slurry emission by about 20% and lowers environment pollution. By adopting a high power drilling machine, a special drilling tool and reasonable technical parameters, the well completion ...

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Номер записи: 1
04-11-2009 дата публикации

Split type reaming bit for large-diameter raising-boring and assembly method thereof

Номер: CN0101571031A
Автор: LIU ZHIQIANG, WU SHIJIE, ZHANG GUANGYU, LIU RIHUI, SUN JIANRONG, WANG CHUAN, CHENG SHOUYE, ZHIQIANG LIU, SHIJIE WU, GUANGYU ZHANG, RIHUI LIU, JIANRONG SUN, CHUAN WANG, SHOUYE CHENG
Принадлежит:

The invention relates to a split type reaming bit for large-diameter raising-boring used in mining machinery and an assembly method thereof. The reaming bit for large-diameter raising-boring is of a split type structure by which the bit is split and transport dimension and weight of the bit are controlled after disassembly, which solves the difficulty of transport and assembly in a narrow roadway of a coal mine, and the reaming bit has higher stability and higher reliability under combined action of great torque, tension and impact.

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Номер записи: 2