Grid section used for sintering acid mine
An acid and grate technology, applied in the field of sintered grate, can solve problems such as shortening the service life, and achieve the effects of prolonging the service life, shortening the downtime and reducing the cost of use
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Embodiment 1
[0032] A grate used for acid ore sintering, the mass percentage composition of which is:
[0033] C 1.3%, Cr 28.0%, Mo 0.5%, Ni 1.4%, Si 1.4%, Mn 0.8%, Ti 0.10%, Re 0.14%, Al 1.9%, and the balance is iron (Fe).
[0034] Preparation:
[0035] (1) Ingredients. The furnace charge is mainly medium and low-carbon scrap steel, followed by the return material and the ferroalloy ferromolybdenum, ferrochrome, ferromanganese, ferro-titanium and nickel plates. The return material should be clean and dry, and the scrap steel should not be severely rusted. The composition of various ferroalloys should be clear. The carbon content is mixed according to the lower limit of the specification in the above formula, chromium, nickel, and molybdenum are mixed according to the middle limit of the specification, and the other is mixed according to the amount required by the range. The alloy element recovery rate when mixed is calculated as follows: nickel and molybdenum are calculated as 100 % (Ie nickel...
Embodiment 2
[0045] A grate used for acid ore sintering, the mass percentage composition of which is:
[0046] C 1.2%, Cr 27.0%, Mo 0.4%, Ni 1.3%, Si 1.3%, Mn 0.7%, Ti 0.10%, Re 0.10%, Al 1.5%, and the balance is iron.
[0047] The preparation method is the same as in Example 1.
Embodiment 3
[0049] A grate used for acid ore sintering, the mass percentage composition of which is:
[0050] C 1.1%, Cr 26.0%, Mo 0.3%, Ni 1.1%, Si 1.1%, Mn 0.6%, Ti 0.10%, Re0.06%, Al 1.1%, and the balance is iron.
[0051] The preparation method is the same as in Example 1.
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