Tianjian Brilliance Figure, bottom ramming mass

Henan Refractories Co., Ltd. Tianjian Brilliance Carbon ramming material current problems often encountered in use is generally low thermal conductivity of carbon ramming material is not conducive to rapid cooling blast furnace, thus affecting the service life. Therefore, heat transfer coefficient up carbon ramming materials research and application update great market prospects. Whether in carbon ramming compound added admixtures, change the properties of materials at high temperatures occur in situ by the reaction, or change the local material structure from the design point of view, so that carbon ramming material layer at elevated operating temperatures, achieve carbon brick and stave match the thermal conductivity, thermal conductivity is generally to ensure that no damage to the structure of the overall construction, so as to improve blast furnace life requirements. Electric stove construction program to ensure the reliability of the use of ramming material and the bottom of the safety of the construction operation made the following provisions: (1) According to hearth size, prepare enough ramming mixes, damp materials are not allowed to use, allowed foreign matter; (2) a permanent bottom layer 5 layer standard brick masonry, the ramming material laid directly on the Qi Hao permanent layer, if the construction in the original permanent layer, the need to clean up a permanent layer, so that the exposed brick , remove surface residue; and (3) knot a total thickness of 300mm, divided into two to tie, each thickness of 150mm, with a hammer blow or stamped into the bottom of the pot-shaped; (4) After completion of the first layer of ramming a surface with a rake rake the depth of about "ten" and "X" shaped groove of 20mm, and then put another layer of ramming or tamping material real step to enable better integration between the two (should pay particular attention to the edge play real); (5) tie after the applied pressure 10Kg of about 4mm diameter steel rod inserted to a depth of no more than 30mm in order to pass; (6) laid out, with a thin iron plate (or 2-3 layer large blade) to the bottom of all materials covered; (7) paved hearth furnace material as soon as possible, and may not place a long time.