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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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Применить Всего найдено 7. Отображено 7.
15-08-2023 дата публикации

Discharging system at bottom of reduction furnace of pure hydrogen shaft furnace

Номер: CN116592648A
Автор: ZHOU HEMIN, HAO XIAODONG, SHEN PENGFEI, XU HONGJUN, ZHANG JUN, YANG GUANGHAO, HE PENG, GAO LIANG, ZHANG SHUAI
Принадлежит:

The invention relates to a discharging system at the bottom of a reduction furnace of a pure hydrogen shaft furnace, belongs to the technical field of reduction of the pure hydrogen shaft furnace, and solves the problem that a dead material area is easily formed at the bottom of the reduction furnace of the shaft furnace due to material accumulation in the prior art. A vertical material loosening device is arranged in the center of the reduction furnace bottom of the pure hydrogen shaft furnace, the vertical material loosening device vertically penetrates through the reduction furnace bottom of the pure hydrogen shaft furnace, a plurality of material discharging areas are arranged around the vertical material loosening device, each material discharging area is provided with a material discharging opening, and each material discharging opening is provided with a spiral material discharging device. The vertical material loosening device comprises a top cone, a material loosening roller, a ...

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Номер записи: 1
23-06-2023 дата публикации

800MPa-grade high-strength corrosion-resistant steel bar and preparation method thereof

Номер: CN116288060A
Автор: ZHOU HEMIN, KE XUELI, HUANG YUHONG, WANG CHANGCHENG, CAI HENGZHONG, ZENG ZHIZHONG, ZHANG JUN, XU HONGJUN, JOON-CHUL GOH, SHEN PENGFEI
Принадлежит:

The invention discloses an 800MPa-grade high-strength corrosion-resistant steel bar and a preparation method thereof, belongs to the technical field of metal materials, and is used for solving the problems that an existing steel bar is low in strength grade and lacks 800MPa-grade hot-rolled steel bars, and the yield strength, the tensile strength and the corrosion resistance of the steel bar cannot be reasonably matched. And the problems that in the prior art, the prestressed reinforcement subjected to quenching-tempering heat treatment is too high in carbon equivalent, cannot be used for reinforcement welding, is low in plasticity index and cannot be used as a common reinforced concrete building structure are also solved. The high-strength corrosion-resistant steel bar comprises the following components in percentage by mass: 0.30%-0.32% of C, 0.55%-0.75% of Si, 1.20%-1.55% of Mn, 0.45%-0.85% of Ni, 0.45%-0.85% of Cr, 0.140%-0.160% of V, 0.025%-0.035% of N, less than or equal to 0.025% ...

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Номер записи: 2
25-08-2023 дата публикации

Pure hydrogen shaft furnace top gas dry purification system and method and pure hydrogen shaft furnace system

Номер: CN116640891A
Автор: ZHOU HEMIN, HAO XIAODONG, XU HONGJUN, SHEN PENGFEI, ZHANG JUN, HE PENG, XU HAICHUAN, CHEN CHUNYU
Принадлежит:

The invention relates to a pure hydrogen shaft furnace top gas dry purification system and method and a pure hydrogen shaft furnace system, belongs to the technical field of pure hydrogen shaft furnace reduction, and solves the problems of purification treatment and cyclic utilization of existing pure hydrogen shaft furnace top gas. The dry purification system for the top gas of the pure hydrogen shaft furnace comprises a cyclone dust removal device, a heat exchanger, a closed bag dust removal device, a condensing device and a centrifugal dewatering and demisting device which are sequentially connected in the flow direction of the top gas. The furnace top gas purified by the system can be recycled as hydrogen for pure hydrogen shaft furnace reduction.

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Номер записи: 3
23-06-2023 дата публикации

Electric heating device and method for reducing high-temperature hydrogen in pure hydrogen shaft furnace

Номер: CN116287519A
Автор: ZHOU HEMIN, HAO XIAODONG, ZHANG JUN, SHEN PENGFEI, XU HONGJUN, HE PENG, JOON-CHUL GOH
Принадлежит:

The invention relates to an electric heating device and method for reducing high-temperature hydrogen in a pure hydrogen shaft furnace, belongs to the technical field of ferrous metallurgy, and solves the technical problem that hydrogen cannot be directly heated to 1050 DEG C by a metal heat exchanger in the prior art. A porous heat accumulator and a plurality of mutually connected silicon molybdenum rods are arranged in the heater, the porous heat accumulator is arranged between every two adjacent silicon molybdenum rods, the silicon molybdenum rods are arranged perpendicular to the flowing direction of hydrogen, the silicon molybdenum rods are connected with the silicon controlled rectifier voltage regulating system through electrodes, and the silicon controlled rectifier voltage regulating system is connected with the silicon controlled rectifier voltage regulating system through the electrodes. And the silicon-controlled voltage regulating system is used for heating the silicon-molybdenum ...

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Номер записи: 4
23-06-2023 дата публикации

1000MPa-grade ultrahigh-strength corrosion-resistant steel bar and preparation method thereof

Номер: CN116288061A
Автор: ZHOU HEMIN, KE XUELI, WANG CHANGCHENG, HUANG YUHONG, CAI HENGZHONG, ZENG ZHIZHONG, ZHANG JUN, XU HONGJUN, JOON-CHUL GOH, SHEN PENGFEI
Принадлежит:

The invention discloses a 1000MPa-grade ultrahigh-strength corrosion-resistant steel bar and a preparation method thereof, belongs to the technical field of metal materials, and is used for solving the problems that an existing steel bar is low in strength grade and lacks 1000MPa-grade hot-rolled steel bars, and the yield strength, the tensile strength and the corrosion resistance of the steel bar cannot be reasonably matched. And the problems that in the prior art, the prestressed reinforcement subjected to quenching-tempering heat treatment is too high in carbon equivalent, cannot be used for reinforcement welding, is low in plasticity index and cannot be used as a common reinforced concrete building structure are also solved. The 1000MPa-grade ultrahigh-strength corrosion-resistant steel bar comprises the following components in percentage by mass: 0.32% to 0.35% of C, 0.55% to 0.85% of Si, 1.40% to 1.60% of Mn, 0.45% to 0.85% of Ni, 0.65% to 1.05% of Cr, 0.140% to 0.180% of V, 0.020% ...

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Номер записи: 5
16-05-2023 дата публикации

Device and method for pure hydrogen metallurgy directly-heated type rapid hydrogen electric heating

Номер: CN116123730A
Автор: ZHOU HEMIN, HAO XIAODONG, ZHANG JUN, SHEN PENGFEI, XU HONGJUN, HE PENG, JOON-CHUL GOH
Принадлежит:

The invention relates to a device and a method for pure hydrogen metallurgy directly-heated type rapid hydrogen electric heating, belongs to the technical field of metallurgy, and aims to solve the problem that hydrogen cannot be heated to 1050 DEG C through metal tube type heat exchange in the prior art. A plurality of heating tube bundles used for heating hydrogen are arranged in the heater, high-temperature-resistant spiral turbolators or aluminum oxide ceramic porous heat accumulators are arranged in the heating tube bundles, the hydrogen flows in the heating tube bundles to be heated, the heating tube bundles are connected with electrodes, and the electrodes are connected with the heating tube bundles. And the silicon controlled voltage regulating system is connected with the electrodes and is used for regulating different heating powers to heat the heating tube bundle. Hydrogen is directly heated to 1050 DEG C through electric heating, the heating efficiency is high, and hydrogen ...

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Номер записи: 6
22-08-2023 дата публикации

Wet purification system and method for top gas of pure hydrogen shaft furnace and pure hydrogen shaft furnace system

Номер: CN116622927A
Автор: ZHOU HEMIN, HAO XIAODONG, ZHANG JUN, HE PENG, XU HONGJUN, SHEN PENGFEI, GAO DA, GAO LIANG, HAO YUKUAN
Принадлежит:

The invention relates to a pure hydrogen shaft furnace top gas wet purification system and method and a pure hydrogen shaft furnace system, belongs to the technical field of pure hydrogen shaft furnaces, and solves the problems of purification treatment and cyclic utilization of pure hydrogen shaft furnace top gas in the prior art. The pure hydrogen shaft furnace top gas wet purification system comprises a cyclone dust removal device, a heat exchanger, an atomization cooling device, a venturi dust removal device and a dehydration demisting device which are sequentially connected in the flow direction of top gas. The furnace top gas purified by the system can be recycled as hydrogen for pure hydrogen shaft furnace reduction.

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Номер записи: 7