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5.2.5 It shall be strictly forbidden that any explosive or closed container is mixed in scrap charge. |
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5.2.6 The scrap bucket shall be designed based on the scrap bulk density of 0.7t/m 3 1.0t/m 3 and according to the principle of furnace charging with single bucket.
5.2.7 For a new converter steelmaking shop,a separate scrap proportioning shop shall be provided for classified scrap storage,in which the scrap proportioning and bucket charging operation shall be performed according to the requirement.The scrap proportioning shop shall meet the scrap demand for 2 10-day operation.
5.2.8 The ferroalloy for converter steelmaking shall be purchased qualified material with particle size of 5mm 50mm.The steelmaking shop shall not be provided with the crushing and processing facility.The online or offline preheating and drying facility may be provided according to the requirements of steel grades.The composition of ferroalloy shall be in conformity with the current relevant national standard.Ferroalloy should be stored in and supplied from a ferroalloy warehouse.The ferroalloy shall be protected from mixing,rainwater and moisture during storage and transportation.