Method for sintering ore blending of Jianshan concentrate fines and limonite
A sintering method and concentrate powder technology, which is applied in the sintering field of Jianshan concentrate powder and high-proportion limonite ore blending, can solve the problem of aggravating the deterioration of air permeability and other problems
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Embodiment 1
[0107] The sintering method of this Jianshan concentrate powder and high-proportion limonite ore blending includes the following steps in sequence:
[0108] (1) Material preparation in sinter yard, (2) Yangdi ore pre-wetting, (3) iron material batching, (4) mixed iron material, flux and fuel batching, (5) primary mixer mixing, (6) Secondary mixing machine granulation, (7) Tertiary mixing machine enhanced granulation, (8) Cloth and pressure material, (9) Ignition and heat preservation, (10) Ventilation sintering, (11) Cooling, (12) Refinement grain.
[0109] Specific steps are as follows:
[0110] (1) Preparation of sintered materials
[0111] Receive all kinds of iron materials, fluxes and coke powder in the primary stock yard. Jianshan powder is directly discharged to the material site through the belt, imported mineral powder (PB powder, Yangdi powder) is unloaded from the train to the material bar of the material site through a dumper; the dolomite in the flux is pulled ...
Embodiment 2
[0146] The difference between the present embodiment and embodiment one is that there is no miscellaneous ore powder in the iron material batching material of step (3) iron material batching, and the mass portion proportioning of the iron material batching material is:
[0147] Jianshan Mineral Powder 45 Wetting Yangdi Mineral Powder 38.5 (adding 9% water relative to Yangdi Mineral) PB Powder 13
[0148] To ensure that after mixing, the mass proportion of dry mineral powder is:
[0149] Jianshan mineral powder 47 Yangdi mineral powder 35 PB powder 14.
[0150] Other steps are the same as those in Embodiment 1.
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