Zhengzhou Annec Industrial Co., Ltd. |
Verified Suppliers
|
|
Blast Stove Used Silica Fire Resistant Refractory Brick Light Weight Brick Silicate Bricks for Ceramic Tunnel KHot sale!
Description
Silica Brick is made of quartz stone material, the content of SiO2 is above 93%. It has good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°C, RUL is beyond 1620°C.
SiO2 has different types of crystals in different temperatures, and
the transform between the crystals will cause the change of the
bulk. So there is a close contact between the changes of SiO2
crystals and the produce, performance and usage of silica bricks.
During the heating, there will be changes of the bulk, and
cristobalite changes most, then quartz, phosphorus quartz is the
slowest of all and it also has good heat-conductivity.Coke oven
should use the silica brick with small true density. And the
phosphorus quartz is better than others.
silica bricks have the characteristics of low thermal conductivity,
high load softening temperature, small residual expansion, and
excellent reburning line change performance. They are suitable for
industrial furnaces such as coke ovens, hot blast furnaces, glass
furnaces and carbon furnaces. It is mainly used for the heat
insulation layer and working layer of thermal equipment, and can be
used for the heat insulation layer of various high temperature kiln
equipment under high temperature conditions (≤1500℃) without
contact with molten slag. This product is suitable for the heat
insulation material of the silica brick lining of the high
temperature hot blast stove of the large blast furnace and the heat
insulation of the silica brick masonry of the glass furnace.
Advantages
1). Excellent insulation ,security , long working life .
2). Precise grinding and polishing.
3). Excellent heat radiation, small size ,more environmental and energy-efficient .
4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability
8). Working temperature: 600℃-1200℃·
Application
1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning and so on.
2). As ceramic parts of flexible pad and channel heaters at
operations of pre and postweld heat treatment; Welding process,
stress-relieving, pre-heating & post heating, other
resistance-heating environment
3). halogen lamps, high and low pressure uv lamps, mercury lamps,
uv lamp holders and heating tubes.
4). high-power electrical applicance and all kinds of insulation device.