wanhaorefractory

  Quartz sand is the quartz writing processing of silica particles (Also called silica, quartz, quartz rock), is a texture hard, wear-resisting, stable chemical properties of silicate minerals. In nature exist in quartz sandstone, quartzite and vein quartz. Quartz sandstone is consolidation of clastic rocks, quartz particles are contented above 95%, and is derived from a variety of magmatic rocks, sedimentary rocks and metamorphic rocks, heavy minerals is less, associated minerals have feldspar, mica and clay minerals.   Quartz sand have several kinds of classical. Admiral quartz have higher fireproof performance, industrial quartz sand is often divided into: ordinary quartz sand, fine quartz sand, high purity quartz sand, fused quartz and silicon powder, etc.   Quartz sand have important role in glass, refractory and metallurgy. Quartz sand have unique physical and chemical properties, make it in aviation, aerospace, electronic, mechanical, and today a significant r

  Tap hole clay is used to seal the taphole refractory , at present there are water stemming and can be divided into two types: anhydrous tap hole clay, the former is used in low pressure, strengthening smelting degree is not high, the small blast furnace, the latter in high top pressure, high degree of intensification of smelting of large and medium blast furnace. Tap hole clay can be divided into two parts - refractory aggregate and binder. Refractory aggregate means corundum, mullite, flint clay and other refractory raw material and modified materials such as coke, mica. Binder for water or organic material such as tar pitch and phenolic resin, also adding SiC Si3N4, expansive agent and additive, etc. Aggregate in a certain size and weight matrix, under the harmonic of binder has certain plasticity, thus can through the mud gun hitting iron mouth to block the molten iron. With water as a bond is called the water stemming, tar, organic material such as r