Select kiln refractory materials need to calcination temperature, chemical properties, and so a number of conditions to determine some material needs ultra-high-

temperature calcination, refractories are selected not use ordinary fire; Some substances are relatively strong caustic calcined material , there is a strong need

refractory corrosion. Can be used as raw material for refractory nature, or more, today to talk about kyanite and see what aspects of the role of the refractory.

Kyanite group minerals include kyanite, sillimanite, andalusite, three for the homogeneous phase minerals are anhydrous aluminum silicate. This class ore calcination

can be transformed into mullite and free silica, and produce different volume expansion, mullite has high refractoriness, chemical stability and mechanical strength.

Therefore, kyanite class in metallurgy, building materials and other industrial sectors are widely used. As a refractory raw materials, metallurgy, building materials,

chemical industry, light industry, nuclear engineering and other departments for the manufacture of refractory mortar, cement, castable refractories and plasticity.

Which has the following characteristics: 1, high temperature stability up to 1825 ℃ refractoriness above. 43% lower than the brick loss, birthday noodles length 150

to 200 furnace; 2, other than the high-alumina refractory low cost; 3, high heat capacity, with energy-saving effect; 4, adding uncertainty refractories for high

temperature expanders, make products at high temperatures without shrinkage and peeling. Select kyanite as kiln refractory material, is really a great advantage, it

has high refractoriness, low thermal expansion, resistance to chemical corrosion resistance, while relatively long service life, the use of cost compared with similar

products have great advantage. Please indicate Henan YuFeng Heavy Machinery