Silica Bricks

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Silica Bricks (T-3)

Silica bricks are acidic refractory materials and have good resistance to acidic slag erosion. The load softening temperature is as high as 1640~1670℃, and the volume is relatively stable under long-term use at high temperatures.

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Description of Silica Bricks

It is mainly used for the partition walls of the carbonization chamber and combustion chamber of coke ovens, the regenerators and slag chambers of steel-making open-hearth furnaces, soaking furnaces, refractory materials of glass melting furnaces and ceramic firing kilns, and other kiln vaults. Load-bearing parts. It is also used in high-temperature load-bearing parts of hot blast furnaces and acidic open-hearth furnace tops.

Silica bricks parameter

ITEM		YC-94K	YC-95B	YC-95A	YC-96B	YC-96A
SiO2 %		≥94	≥95	≥95	≥96	≥96
Fe203 %		≤1.5	≤1.2	≤1.2	≤1.0	≤0.8
Refractoriness ℃		≥1710	≥1710	≥1710	≥1710	≥1710
A.P %		≤24	≤22(24	≤22(24)	≤22(24)	≤22(24)
B.D g/cm3		≤2.33	≤2.35	≤2.35	≤2.34	≤2.34
MPa	≥20KG	≥30	≥30(25)	≥30(25)	≥30(25)	≥30(25)
MPa	<20kg	≥30	≥35(30	≥35(30)	≥35(30	≥35(30)
RUL ℃		≥1630	≥1650	≥1660	≥1670	≥1680

Features

In the production process of refractory bricks, poor molding or firing problems may be related to unreasonable particle grading.

Silica Bricks for Coke Oven

Modern coke ovens are large-scale thermal equipment built with tens of thousands of tons and nearly a thousand types of brick refractory materials, of which silica bricks account for 60% to 70%. The main component of silica bricks for coke ovens is tridymite, which is mainly used to build coke oven regenerator walls, chutes, combustion chambers, carbonization chambers and furnace tops. Silica bricks for coke ovens mainly have the characteristics of high softening temperature under load, high thermal conductivity, good thermal shock resistance, and volume stability at high temperatures.