Refractory clay bricks belong to a main variety of silicon-alumina series products. They are refractory products with Al2O3 content of 30-48%, which are made of clay clinker as aggregate and refractory clay as binder. Mainly used in thermal boilers, glass furnaces, cement furnaces, fertilizer gas furnaces, blast furnaces, hot blast furnaces, coking furnaces, electric furnaces, casting and steel casting bricks, etc. Because in addition to the mullite crystals with high refractoriness, the clay bricks also contain nearly half of the low melting point amorphous glass phase.

Specifications of fire clay brick for hot blast stove

1. Clay brick products are divided into three grades: (NZ)-42, (NZ)-40, (NZ)-38 according to physical and chemical indicators.

2. The shape and size of clay brick products conform to the provisions of GB2992-82 "General Refractory Brick Shape and Size". If there is no brick type required by the buyer in the standard, it will be produced according to the drawings of the buyer.

3. Generally divided into standard type, general type, special type, special type, and can also be specially made according to user requirements.

Usage of fire clay brick for hot blast stove

Clay bricks for hot blast stoves are clay bricks made from refractory clay and used to build blast furnace hot blast stoves. Clay bricks for hot blast stoves are used in hot blast stoves, regenerators and partition walls. Clay bricks for hot blast stoves require good thermal shock resistance, high softening temperature under load and small creep.