Checker brick is a heat transfer medium and heat storage body that plays an important role in many fields. In the industrial field, such as hot blast furnaces, glass kilns and coke oven regenerators, checker bricks are used for heat exchange and heat storage. Moreover, Kerui has hot-selling checker bricks of different specifications and materials for you to choose from.
Features of Kerui High Performance Checker Bricks
Checker bricks have multiple transparent grid holes parallel to the side surfaces. In addition, it has positioning protrusions and positioning grooves located on two parallel surfaces. The specific advantages of Kerui checker bricks are as follows. Get more information about Kerui refractory bricks on LinkedIn.
- Strong heat exchange capacity;
- Large heat storage area;
- Good volume stability;
- Good high temperature load creep performance;
- High density;
- Low porosity;
- Smooth ventilation.
Material Design of Checker Brick
It can be divided into fire clay checker brick, high alumina checker brick, silica checker brick and sillimanite checker brick. Checker bricks of different materials have different performance characteristics. Therefore, they are suitable for different working environments and temperature conditions. For example, when the hot air is below 900℃(1652℉), clay bricks are generally used. However, when the wind temperature is above 900℃(1652℉), high alumina bricks, sillimanite refractory bricks and silica bricks are used for checker bricks.
The Grid Hole Design of Kerui Brick Checker
Checker bricks with different numbers of holes have different heat storage areas and heat transfer efficiencies. Thus, this can meet the needs of different equipment and processes. The following is a comparison of the heat storage area of several typical chequer bricks.
- Traditional 7-hole checker bricks: grid hole diameter is 43mm, heat storage area is 38.1m²/m³;
- 7-hole high-efficiency checker bricks: grid hole diameter is 30mm, heat storage area is 47.08m²/m³;
- 19-hole high-efficiency checker bricks: grid hole diameter is 30mm, heat storage area is 48.6m²/m³;
- 31-hole high-efficiency checker bricks: grid hole diameter is 25mm, heat storage area is 58.1m²/m³;
- 37-hole high-efficiency checker bricks: grid hole diameter is 20mm, heat storage area is 68.7m²/m³.
The Role of Checker Brick for Hot Blast Stove
Checker bricks play a vital role in hot blast furnaces. Hot blast furnaces are typical regenerative heat exchangers. Checker bricks, as their heat storage bodies, undertake the key tasks of absorbing and releasing heat.
During the furnace burning period, the high-temperature flue gas after combustion passes through the holes of the checker bricks and transfers heat to the checker bricks. During the air supply period, cold air enters the hot blast furnace from the blower. Then, it becomes hot air after passing through the heated checker bricks. Finally, it is sent to the blast furnace through the hot air pipe for combustion reaction.
Choose Kerui Checker Brick Manufacturer
Using Kerui checker brick can significantly increase the hot air temperature of the hot blast furnace and reduce fuel consumption. Therefore, our refractory bricks improve the ironmaking efficiency and economic benefits of the blast furnace.
Moreover, the checker brick series products produced by KR Refractory have been successfully used in more than 120 steel smelting enterprises at home and abroad. We have accumulated rich experience in R&D, production and application. Welcome to call us for negotiation or visit our factory at any time.
