System and method for treating siderite

A technology of siderite and rotary hearth furnace, applied in the field of smelting, can solve the problems of density, low specific magnetic susceptibility, poor selectivity, etc., and achieve the effects of sufficient magnetization, low cost and low energy consumption
CN106399672AInactive Publication Date: 2017-02-15JIANGSU PROVINCE METALLURGICAL DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU PROVINCE METALLURGICAL DESIGN INST
Publication Date
2017-02-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a system and a method for treating siderite. The system comprises an atomizer mill, a pelletizer, a drying device and a rotary hearth furnace, wherein the atomizer mill comprises a discharge hole; the pelletizer comprises a charge hole and a discharge hole; the drying device comprises a charge hole and a discharge hole; and the rotary hearth furnace comprises a charge hole, a discharge hole and a retaining wall. According to the system and the method for treating siderite disclosed by the invention, magnetizing roasting and reducing roasting of materials are integrally completed, so that magnetizing is sufficient and reducing effect is good; sensible heat of magnetized and roasted pellets is sufficiently utilized for reducing and roasting materials, so that energy consumption is small and cost is low; and conditions are created for expanding resource utilization of iron ores.
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Description

technical field

[0001] The invention belongs to the technical field of smelting, and in particular relates to a system and method for processing siderite. Background technique

[0002] In recent years, with the rapid development of the iron and steel industry, my country's development of iron ore resources is intensive, the comprehensive utilization rate is low, and the difficulty of geological exploration is increasing, which makes the iron ore resources with good geological conditions, high resource grade and good sorting ability It is gradually decreasing, the sustainable supply capacity of mineral resources is declining, and the reserve resources are insufficient. Only by actively developing and utilizing refractory iron ore and low-grade iron ore resources can we effectively expand the amount of iron ore resources that can be used industrially in my country and reduce foreign dependence , to ensure the security of iron ore supply.

[0003] The crystals of siderite are rh...

Claims

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