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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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Применить Всего найдено 3. Отображено 3.
23-06-2023 дата публикации

Wear-resistant repair material feeding device and method for CFB circulating fluidized bed

Номер: CN116277498A
Автор: ZHANG SHENG, PEI YIXIN, LI YEQING, QIAN LONGFEI, FANG XIANBIN
Принадлежит:

The invention discloses a feeding device and method for a wear-resistant repairing material for a CFB circulating fluidized bed, and relates to the technical field of repairing of circulating fluidized beds, the device comprises a crushing barrel, a stirring and mixing assembly connected with the crushing barrel through a detachable feeding pipe, and a forming mold connected with the stirring and mixing assembly through a detachable discharging pipe, the stirring and mixing assembly comprises two symmetrically arranged mixing barrels, and two mixing augers are symmetrically arranged between the two mixing barrels; the method comprises the following steps: S1, crushing; s2, primary stirring and mixing; s3, secondary stirring and mixing; and S4, molding in a mold. According to the preparation technology and performance of the repairing material of the circulating fluidized bed, the stirring and mixing assembly is optimally arranged, the mixing effect is further improved, feeding can be conducted ...

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Номер записи: 1
01-08-2023 дата публикации

Corrosion-resistant and wear-resistant plastic refractory special for SNCR (selective non-catalytic reduction) in CFB (circulating fluid bed) target region

Номер: CN116514533A
Автор: ZHANG SHENG, HONG ZHANLIANG, LI YEQING, FAN XIAOKANG
Принадлежит:

The invention discloses a CFB target area SNCR special corrosion-resistant and wear-resistant plastic refractory and a preparation method thereof.The plastic refractory is prepared from, by weight, 55%-70% of aggregate, 6%-15% of silicon carbide micro powder, 4%-8% of chromic oxide micro powder, 0.5%-5% of silicon micro powder, 2%-8% of binding agent, 0.5%-3% of additive and the balance aluminum oxide micro powder, the preparation method comprises the following steps of S1, primary mixing, S2, material mixing, S3, heat treatment, S4, heat treatment and S5, heat treatment. S3, drying; the prepared plastic refractory has the advantages of being high in strength, good in wear resistance and good in corrosion resistance, the aggregate with different particle sizes and other micro powder act together, the formed plastic refractory is more compact, and the wear resistance and the corrosion resistance are improved. The silicon carbide micro powder improves the wear resistance and thermal shock ...

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Номер записи: 2
02-05-2023 дата публикации

Corrosion-resistant and wear-resistant silicon carbide plastic refractory for lining of incinerator and preparation method thereof

Номер: CN116041086A
Автор: ZHANG SHENG, FAN XIAOKANG, WU JUNJIE, LI YEQING, QIAO XUEGAN, LI HAO
Принадлежит:

The invention discloses a corrosion-resistant and wear-resistant silicon carbide plastic refractory for an incinerator lining and a preparation method. The plastic refractory is prepared from the following components in parts by mass: 46 to 55 parts of porous silicon carbide aggregate, 15 to 20 parts of silicon carbide powder, 16 to 20 parts of corundum powder, 6 to 9 parts of aluminum oxide, 0 to 1 part of silicon powder, 5 to 10 parts of glass fiber, 3 to 8 parts of graphite, 2.5 to 3.5 parts of binding agent, 1 to 2 parts of plasticizer and 0.3 to 0.6 part of defoaming agent. The silicon carbide aggregate, the silicon carbide powder, the corundum powder, the aluminum oxide, the silicon powder, the binding agent, the plasticizer and the defoaming agent are mixed to prepare the plastic refractory, meanwhile, the glass fibers and the graphite are added, and the silicon carbide aggregate is modified, so that the plastic refractory with excellent wear resistance is obtained.

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Номер записи: 3