How to Choose Refractory Bricks for Hazardous Waste Incinerators

Selecting refractory bricks for use in hazardous waste incinerators requires consideration of a variety of factors, including fire resistance, chemical stability, corrosion resistance, and the ability to adapt to specific process conditions. The selection should be based on the chemical composition of the incinerated materials and the type of kiln.

Here are some suggestions for choosing refractory bricks:

Refractory temperature: Choose refractory bricks that meet or exceed the operating temperature of the incinerator. Generally, bricks with high refractory temperatures are required under high-temperature conditions. For example, for high temperatures exceeding 1500 degrees Celsius, you may need to choose corundum, mullite, silicon carbide, chromium-containing refractory materials, etc.

Corrosion resistance: The gases produced by hazardous waste incinerators may contain acidic or alkaline substances, so corrosion-resistant refractory bricks are required. Materials such as alumina and aluminum silicate usually have good corrosion resistance.

Thermal shock stability: Incinerators may experience rapid changes in temperature during operation, so refractory bricks are required to have good thermal shock stability to prevent the bricks from cracking or breaking due to temperature changes.

Chemical stability: Choose refractory bricks that can withstand the chemical reactions and high-temperature conditions that occur during incineration. Ensure that the refractory bricks will not react adversely when in contact with the waste and will not be corroded by components in the waste.

Supplier reputation and quality control: Choose refractory bricks from experienced and reputable suppliers to ensure that they meet appropriate standards and quality requirements. The quality of refractory bricks is critical to the performance of the incinerator.

Cost-Effectiveness: Consider factors such as refractory brick price, longevity, and maintenance costs to determine an option that fits your budget and performs well.

Taking the above factors into consideration, it is very important to communicate with the refractory material supplier or engineer to select suitable refractory bricks based on the specific incinerator design and operating conditions.