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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 4. Отображено 4.
01-08-2023 дата публикации

Efficient and environment-friendly starting method for dilute nitric acid production device

Номер: CN116514079A
Автор: LI QINGQING, QIAN MING, FENG XIPENG, AN ZHAOHUI, LI JINGLI, SUN ZHONGMING, LI GUANGQIAN, LI NING, ZHI BAONING, XI ZHEN
Принадлежит:

The invention relates to a method for efficiently starting a dilute nitric acid production device in an environment-friendly manner, which belongs to the technical field of nitric acid production and comprises the following steps: A, evaporating and filtering liquid ammonia, and heating until the pressure reaches 0.45-0.85 MPa; b, adjusting the rotating speed of the air compressor, the angle of a stationary blade and an anti-surge valve of the air compressor, and designing 28-33% of the load air volume; c, ignition preparation is made; d, opening a gas ammonia main valve; and E, igniting a hydrogen ignition device, introducing ammonia into the oxidation furnace for 1-2 minutes, matching the ammonia-air ratio to 7.5% or above, starting to red a catalyst platinum net and rapidly rising the furnace temperature of the oxidation furnace, indicating that the ignition of the oxidation furnace is successful, turning off the hydrogen ignition device, adjusting the air volume of an air compressor ...

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Номер записи: 1
30-12-2015 дата публикации

Fertile prilling tower vent gas treatment system in of nitro

Номер: CN0204911090U
Автор: LI QINGQING, LI GUANGQIAN, FENG XIPENG, WANG XIUZHI
Принадлежит:

The utility model provides a fertile prilling tower vent gas treatment system in of nitro, include venturi tube scrubber, washing basin, scrubbing tower, water -collecting tray, circulation cistern, wash basin and accumulator. The utility model discloses a two -stage sprays washing device, fully handles dust -laden tail gas for the vented tail gas dust content is extremely low, and the dust is retrieved liquid concentration and is improved greatly, has realized not only that material furthest retrieves, has still avoided because of retrieving the adverse effect that liquid water content height caused to product quality. The utility model discloses a spraying the water and being and recycling, no waste water is arranged outward, and whole water consumption is few.

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Номер записи: 2
28-04-2023 дата публикации

Structure for improving denitration separation efficiency in magnesium nitrate solution

Номер: CN116020142A
Автор: QIAN MING, FENG XIPENG, LI QINGQING, LI GUANGQIAN, LI NING, AN ZHAOHUI, ZHI BAONING
Принадлежит:

The invention relates to the technical field of chemical product concentrated nitric acid production, in particular to a structure for improving denitration separation efficiency in magnesium nitrate solution, which comprises a buffer tank, the top of the buffer tank is communicated with a liquid inlet pipe, the top of the liquid inlet pipe is communicated with a concentration tower, and the bottom of the buffer tank is fixedly connected with a spiral discharger. A first valve is installed on the outer side of the bottom of the spiral discharger, the outer side of the inclined part of the buffer tank is communicated with an emptying pipe, a vertically-arranged steel column is fixedly connected into the buffer tank, and a buffer steel plate is fixedly connected to the top of the steel column; the buffer steel plate and the steel column can buffer the falling speed of a magnesium nitrate solution, reduce scouring to a heating steam coil of the magnesium nitrate solution heater, also can settle ...

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Номер записи: 3
20-01-2016 дата публикации

Vent gas treatment system in in nitric acid manufacture

Номер: CN0204973598U
Автор: LI QINGQING, LI GUANGQIAN, FENG XIPENG, XU GUANG AN, XU GUANG'AN
Принадлежит:

The utility model provides a vent gas treatment system in in nitric acid manufacture, including evaporating pot, gas mixing pipeline, catalytic reduction retort, tail gas turbine machine and heat exchanger. The utility model discloses an add the catalytic reduction retort behind nitric acid absorption tower tail gas pipeline, the nitrogen oxide in messenger's tail gas generates contamination free nitrogen gas and water with the gas ammonia fast reaction of corresponding volume to eliminate the problem that nitric acid manufacture process exhaust tail gas emits the tobacco, have considerable environmental benefit. Simultaneously, utilize the process consideration such as temperature, pressure of nitric acid manufacture device self still ingeniously, need not additionally to set up pressure regulating, the equipment of adjusting the temperature to greatly reduced the treatment cost of tail gas.

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Номер записи: 4