Method for converting nickel-containing solid waste by converter
The invention discloses a method for converting nickel-containing solid waste by a converter, which is characterized by comprising the following steps of: (1) proportioning: matching the nickel-containing solid waste to ensure that the iron content of the charging material is 15-55% and the sulfur c...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for converting nickel-containing solid waste by a converter, which is characterized by comprising the following steps of: (1) proportioning: matching the nickel-containing solid waste to ensure that the iron content of the charging material is 15-55% and the sulfur content is 10-45%; (2) a molten pool is manufactured, materials are put into the furnace in batches, meanwhile, the natural gas amount is gradually increased, the natural gas flow range is 100-400 Nm < 3 >/h, and the temperature in the furnace is required to be controlled to be 1300-1450 DEG C; (3) protecting air holes and air pipes: opening miscellaneous air pipes in the molten pool making period, and protecting the air holes and the air pipes and tuyere bricks; (4) slagging and blowing: during blowing, determining that the pressure of the tuyere is greater than 0.07 Mpa and is stable, and tilting the converter body to 0 position after the air supply amount is greater than 16800 Nm < 3 >/h; and (5) high-grade nicke |
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