High-chromium type vanadium-titanium magnetic pellets and method for improving quality of high-chromium type vanadium-titanium magnetic pellets
A vanadium-titanium-magnetite concentrate and vanadium-titanium-magnetite technology are applied in the field of metallurgy and can solve the problems of lack of application of pellets entering the furnace, poor quality and metallurgical properties of high-chromium-type vanadium-titanium magnetite pellets, etc.
Inactive Publication Date: 2017-09-29
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Abstract
The invention provides high-chromium type vanadium-titanium magnetic pellets and a method for improving the quality of the high-chromium type vanadium-titanium magnetic pellets and relates to the technical field of metallurgy. The high-chromium type vanadium-titanium magnetic pellets are prepared by the following steps that high-chromium type vanadium-titanium magnetic concentrates with the water content being 6%-7% in mass percent and binding agents are mixed and stirred according to the ratio of 98.4: 1.5-1.7, and a mixture is obtained; the mixture is pelletized, and the water content of each pelletized green pellet is made to be 9%-10% in mass percent; and the green pellets are screened and roasted sequentially, then roasted pellets are obtained, and roasting is conducted under the oxidizing atmosphere. The high-chromium type vanadium-titanium magnetic pellets obtained by the method for improving the quality of the high-chromium type vanadium-titanium magnetic pellets are excellent in metallurgical performance and high in quality, the requirement of medium-small blast furnaces for the in-furnace pellets can be met, and the requirement of extra-large blast furnaces for the in-furnace pellets is further met, and the high-chromium type vanadium-titanium magnetic pellets have wide industrial production prospects.
Technology Topic
Water contentChromium +6
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PUM
Property | Measurement | Unit |
Compressive strength | 3000.0 | N |
Compressive strength | 3500.0 | N |
Compressive strength | 4000.0 | N |
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