Ramming Mass
Ramming Mass
The Ramming Mass for Ferro-Alloy Refining and Mineral Heating Furnaces
This series of products are mainly made of high calcium & iron magnesium sand, and introducing ultrafine powder agent and anti-slag erosion reinforcing agent. Its working principle is: the principal crystal phase of the high calcium & iron magnesium sand is periclase (MgO), the consolidation phase 2CaO. Fe2O3 (C2F, Tm = 1425 ℃) is a transitional low eutectic phase. When the temperature is low ,the working layer of the ramming material in contact with the iron liquid can play the function of promoting combustion.When the face form stable sintering layer, in the using temperature (T > 1425 ℃), decompose to FeO and fCaO ,FeO solid solution into MgO generated (Mg, Fe) O high melting point phase, fCaO and SiO2 in the slag generate 2Cao. SiO2 high melting point phase,it improves the performance of slag erosion resistance and anti-slag penetration.The ramming material which is far away from the liquid iron keeps the original loose structure due to the low temperature, which can effectively buffer the thermal stress of the sintered layer and prevent the leakage of molten iron.
| Product Brand | Chemical Content（w%） | Granularity/mm | |||
|---|---|---|---|---|---|
| MgO | SiO2 | CaO | Fe2O3 | ||
| HM-TD-1 | ＞ 84 | ＜ 1.2 | 6-10 | 4-6 | 0-6 |
| HM-TD-2 | > 83 | < 1.5 | 6-12 | 3.5-5 | |
| HM-TD-3 | > 85 | < 3 | < 8 | < 4 | |
| HM-TD-4 | > 83 | < 3.5 | < 6 | < 3 | |
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