Silica Bricks for Hot Blast Stove

Silica Brick for Hot Blast Stove Introduction
 

Silica bricks for hot blast stove for siliceous refractory products containing scaly quartz as the main phase in the high temperature part of the blast furnace hot blast stove.Due to the increase of wind temperature, the clay bricks or high alumina bricks used in the high temperature parts of the previous silicate brick hot blast stove are gradually replaced by silica bricks and low creep high alumina bricks.

Catalogue
  
❉Silica Bricks for Hot Blast Stove Feature

❉Silica Bricks for Hot Blast Stove Products Requirement

❉Silica Bricks for Hot Blast Stove Using Requirement
 
❉Silica Bricks for Hot Blast Stoves Using Effect
 
❉Silica Bricks for Hot Blast Stove Specification

 
❉Why Choose Silica Bricks from Rongsheng Refractory Bricks Manufacture

❉Silica Brick for Hot Blast Stove Feature
 
1.Under the condition of long-term high temperature and load, the volume is stable, the creep rate of high temperature is low, and one or even two blast furnaces can be used continuously.
 
2.Good thermal shock resistance above 600 degree C. Adapt to the variability of the hot blast stove temperature to keep bricks and masonry intact.
 
3.Chemical resistance is better than clay bricks and general high alumina bricks. The erosion of silicate bricks hot blast stove by alkaline substances in gas and smoke is limited to the formation of a glass phase on the surface and does not peel off.

 
4. The thermal conductivity of silicon brick used in hot blast stove, is larger than that of clay bricks and high alumina bricks, which is beneficial for storing and releasing heat in a short time.

 
❉Silica Brick for Hot Blast Stove Products Requirement
 
The shape of the product should be regular and the dimensional deviation should be small. The difference of the hole diameter of the check brick is ±1mm, and the Silica bricks hot blast wood furnace of other parts should not exceed ±1%. If the joint of the upper part of the external combustion type hot blast stove is made of composite brick, it needs to be cut before the masonry. Grind and pre-assemble. The surface crack width is not more than 0.5 mm and should have a length limit side. Cracks less than 0.1mm wide will not affect the use, there should be no cracks caused by improper cooling

 
❉Silica Brick for Hot Blast Stove Using Requirement
 
Hot air furnace silica bricks should be stored in a waterproof warehouse and can be used after being wetted at a temperature below 100 degree Celsius. Water-containing silicon bricks used for hot blast stove are affected by freezing and need to be re-inspected. The furnace should be set up to expand the expansion joint according to the thermal expansion rate provided by the manufacturer. The temperature rise curve of the oven should be reasonably formulated, especially in the more intense stage of expansion before 600 degree Celsius.

 
❉Silica Bricks for Hot Blast Stoves Using Effect

 
1. At present, low creep high aluminum checkered bricks produced by "flat expansion" are not suitable for use in high temperature zones of hot blast stove regenerators.
 
2. At present, the country's access to low creep high aluminum checkered bricks is too low, and the technical requirements are too low. In the future, if low creep high aluminum checkered bricks are used, the creep rate, rate of reheating line, thermal shock stability, Requirements for apparent porosity and impurity content.

 
3. The use of silica brick in the high temperature zone of the hot blast stove is a reasonable choice.

 
4. Pay attention to the stability and rationality of the air supply system.

 
5. it is recommended that silicon brick used in hot blast stove from top to bottom are: a, silicon brick; low creep high aluminum lattice brick ( andalusite check brick); low creep clay brick; b, silicon brick; low creep high aluminum lattice Brick (andalusite checkered brick); high-alumina checkered brick; clay lattice brick two forms

 
6.Silica bricks is an important guarantee for high wind temperature and longevity of hot blast stove

 
❉Silica Brick for Hot Blast Stove Specification