Burner Brick

Prefabricated burner bricks and prefabricated burner beams are made of high-quality high-alumina bauxite clinker, mullite, corundum, pure aluminate cement and a variety of additives. They are made into refractory prefabricated parts through pouring, curing, drying and other processes. Prefabricated burner bricks and burner beams have the characteristics of stable quality, long service life, and convenient maintenance and replacement. They are widely used in various heating furnaces, annealing furnaces, heat treatment furnaces, ignition furnaces and other thermal equipment. Product material and shape design can be provided according to user requirements.

 

Product features

1. Good high temperature performance.;

2. High strength;

3. Good density;

4. Stable volume;

5. Strong resistance to chemical erosion;

6. Good thermal shock resistance;

7. Resistant to high temperature flue gas erosion.

Burner bricks are refractory products used in various burner parts, mainly for organizing flames. Flat flame burners are installed on the furnace roof, and other burners are installed on the furnace wall. The burner bricks are in the shape of a trumpet, composed of one or several pieces, and are inlaid in the furnace lining. The center must be aligned with the center of the burner to ensure effective mixing and preheating of fuel and air, organize the flame shape and stabilize the combustion process. The bricks and the surrounding linings are often subjected to high temperature, sudden temperature changes and air flow scouring, and are damaged quickly. The service life of clay burner bricks used for burning gas is about 1 year, and when heavy oil is used as fuel, its life is only 3 to 6 months. When high-alumina or sillimanite burner bricks are used instead, the use effect is improved; the burner bricks made of high-alumina cement or phosphate refractory castables on gas-fired heating furnaces have a life of 1 to 2 years. Burner bricks made of corundum or mullite low-cement refractory castables are used on oil-fired heating furnaces, and the life is 6 months to 3 years.

The burner brick is used in conjunction with the burner to organize the flame and stabilize the combustion. The burner brick is an important component of the single-side upper burner soaking furnace and the four-corner burner soaking furnace. The former is installed on the upper part of the end wall of one side of the furnace pit, and the exhaust port is provided at the lower part. The flame or airflow moves in a U-shaped manner in the furnace; the latter is installed on the upper part of the four corners of the furnace pit, and the exhaust port is provided at the lower part of the side wall, and the flame forms a rotating airflow. The burner brick is in the shape of a trumpet, and its structure is suitable for secondary hot air combustion, so its size and mass are large. It is generally composed of 2 or 4 clay or high-alumina bricks, and can also be made of phosphoric acid or low-cement series refractory castables and inlaid in the furnace wall. Under normal operation, the service life of the burner brick is 8 to 15 months.

According to different materials, the burner brick is divided into four categories: corundum, high aluminum, silicon carbide, and mullite. According to requirements, different raw materials are selected as aggregates and powders, composite additives are added, and aluminum phosphate is used as a binder. It is vibrated and formed and baked.

Features:

High compressive strength, good thermal shock stability, high load softening temperature.

Erosion resistance, high wear resistance, and peeling resistance.

Low shrinkage after sintering, and the service life is 2-3 times that of unfired bricks.

Applicable:

Industrial kiln burners such as building ceramics and daily ceramics.

Parts with frequent temperature changes, high strength requirements, wear resistance, and erosion resistance

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