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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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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 2. Отображено 2.
09-04-2021 дата публикации

Recycled cigarette box wrong plate recognition device

Номер: CN212933532U
Автор: SONG XIAOYI, NING KEFENG, QIAN ZHEN, WANG CHAOLONG, 宋晓毅, 宁克峰, 钱振, 王朝龙
Принадлежит: FUYANG CIGARETTE MAT FACTORY, FUYANG CIGARETTE MATERIAL FACTORY, 阜阳卷烟材料厂

The utility model discloses a recycled cigarette box wrong plate recognition device which comprises a workbench, a fixing device, a supporting device, a displayer and a clamping device. The two-dimensional code scanning gun clamped on the clamping device can be used for scanning the two-dimensional code on the surface of the cigarette box, and then the two-dimensional code is displayed on the display connected with the two-dimensional code scanning gun, so that the cigarette box can be effectively and quickly identified and classified; a supporting device and a clamping device which are arranged at the top of the fixing device can move along the surface of the workbench, and a second mounting block and the clamping device which can move left and right along the sliding rod can drive the clamped two-dimensional code scanning gun to move front and back; the two-dimensional codes at different positions of the smoke box can be conveniently scanned and recognized through movable arrangement ...

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Номер записи: 1
14-04-2023 дата публикации

Thickened oil viscosity reducer for improving crude oil recovery rate and synthesis method of thickened oil viscosity reducer

Номер: CN115960021A
Автор: XU YUANYUAN, WANG JIANBO, LIU YUJIN, WANG TIANCHU, TAO YUAN, SONG XIAOYI, NIU HONGYAN
Принадлежит:

The invention belongs to the technical field of oil exploitation, and particularly relates to a thick oil viscosity reducer for improving crude oil recovery efficiency and a synthesis method thereof. The preparation method comprises the following steps: adding disodium 8-aminonaphthalene-1, 3, 6-trisulfonate, epoxy chloropropane, tetrabutylammonium bromide and water into a flask, stirring, heating and reacting to obtain a viscous liquid; transferring the viscous liquid into a high-pressure reaction kettle, adding a catalyst and nitrogen to purge a pipeline, vacuumizing, then heating, adding epoxypropane, continuously heating, reacting, and cooling to obtain an intermediate; slowly introducing ethylene oxide into the intermediate, heating, reacting, and cooling to room temperature to obtain a crude product; and decoloring the crude product by using activated carbon, and evaporating to dryness by using a rotary evaporator to obtain the product thickened oil viscosity reducer. The thick oil ...

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Номер записи: 2