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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 3. Отображено 3.
22-08-2023 дата публикации

Method for reducing expansion rate of pellets

Номер: CN116622982A
Автор: FAN JIANJUN, LI HAOKUN, SHI YONGLIN, LIU WENWEN, LIANG JIANZHONG, CAI MEIXIA, HE JIA
Принадлежит:

The invention discloses a method for reducing the expansion rate of pellets, which comprises the following steps: adding a mixture of finely ground rotary kiln ring forming matter and iron flux slag into iron ore powder according to a certain proportion, and then preparing, pelletizing, roasting and cooling to obtain finished pellets. According to the method disclosed by the invention, a mixture of the finely ground rotary kiln ring forming matter and the iron flux slag is added into the iron ore powder according to a certain proportion, so that the technical problem that the expansion rate of the pellet is deteriorated when the alkaline pellet is produced through a chain grate-rotary kiln by taking finely ground limestone powder as a flux and taking fine-fraction iron ore powder as an iron material is solved; the expansion rate of the pellets is 14-19%, and the method is completely suitable for large-proportion matching of blast furnace ironmaking and is beneficial to stable and smooth ...

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Номер записи: 1
27-06-2023 дата публикации

Production method of chromium-containing molten iron

Номер: CN116334336A
Автор: LI HAOKUN, FAN JIANJUN, SHI YONGLIN, LIANG JIANZHONG, LIU WENWEN, HE JIA
Принадлежит:

The invention discloses a production method of chromium-containing molten iron, which comprises the following steps: proportioning: proportioning chromium-iron pellets, flux and coke; charging: preheating the proportioned ferrochrome pellets, flux and coke, and then adding the preheated ferrochrome pellets, flux and coke into the submerged arc furnace from the top of the submerged arc furnace; the method comprises the following steps: smelting: introducing current into an electrode in a submerged arc furnace for smelting, and carrying out furnace charge pre-reduction in the smelting process, namely purifying submerged arc furnace gas discharged from the top of the submerged arc furnace in the smelting process, and adding hydrogen and coal bed gas to form mixed gas of the submerged arc furnace gas, the hydrogen and the coal bed gas, and after being heated, the mixed gas is uniformly sprayed into the submerged arc furnace from a tuyere below the furnace charge surface of the submerged arc ...

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Номер записи: 2
22-08-2023 дата публикации

Method for blowing pickling sludge in blast furnace

Номер: CN116622921A
Автор: LIU WENWEN, ZHANG HUA, LI HAOKUN, SHI YONGLIN, YI GUILAN, FAN JIANJUN, LIANG JIANZHONG, HE JIA
Принадлежит:

The invention discloses a method for blowing pickling sludge in a blast furnace, which comprises the following steps: (1) drying the pickling sludge to obtain dried pickling sludge; (2) mixing the dried pickling sludge with injection coal, and grinding to obtain mixed fine powder; and (3) applying the mixed fine powder to a blast furnace coal injection process. The method effectively recycles the stainless steel pickling sludge, improves the performance of the furnace slag in the blast furnace hearth area, reduces the viscosity and melting point of the furnace slag, and promotes the discharge of slag iron. Meanwhile, metal elements in the pickling sludge are effectively recycled, and the effects that solid waste does not leave a factory and is reasonably utilized are achieved.

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Номер записи: 3