The selection of suitable refractory bricks depends on the type and composition of the materials handled by the incinerator, as well as its aggressiveness to the refractory materials. Different types of incineration materials may contain different chemical compositions, so the corresponding refractory fire bricks need to be selected according to the actual situation.
When selecting incinerator lining materials, firstly, according to the temperature of the furnace, refractory fire bricks and insulation materials that can withstand the incineration temperature must be selected; secondly, the corrosiveness of the combustion products to the furnace lining must be considered.
Domestic waste may contain organic matter, moisture and other components, and the erosion of refractory bricks is relatively small.
Industrial hazardous waste may contain acidic or alkaline substances, whether it contains fluorine, and whether it contains molten salt and alkali. Corresponding refractory firebricks need to be selected.
Solid waste may contain components such as metal oxides, requiring refractory firebricks that are resistant to high temperatures and wear.
The waste liquid may contain highly corrosive chemicals, so refractory fire bricks with good corrosion resistance need to be selected.
Medical waste may contain organic, inorganic, biological and other components. Its chemical properties and combustion characteristics need to be comprehensively considered to select corresponding refractory bricks. Generally speaking, the refractory fire bricks commonly used in incinerators mainly include the following types:
Magnesia bricks: Magnesia bricks have high high temperature resistance and alkali resistance, and are suitable for use in high temperature environments. They have good stability against corrosive media at high temperatures, so they are often used in the inner walls of the furnaces, discharge ports and other parts of incinerators.
Silicon carbide refractory bricks: Silicon carbide bricks have excellent high temperature resistance and chemical stability, and can operate stably for a long time at extremely high temperatures. They are commonly used in the linings of incinerators, combustion chambers, and in some high-temperature areas of furnaces.
Aluminum bricks: Aluminum refractory fire bricks have good high temperature resistance and corrosion resistance, and have certain stability against some corrosive gases at moderate temperatures. They can be used in some secondary parts or medium temperature areas of the incinerator.
Silica-alumina refractory bricks: Silica-alumina refractory firebricks combine the advantages of silicon and aluminum and have good fire resistance and corrosion resistance. They are typically used in some medium to high temperature areas of the incinerator.
Therefore, when selecting refractory fire bricks, it is necessary to fully understand the composition of the incinerated materials and their erosion of the refractory materials, so as to select appropriate refractory fire bricks to ensure the stable operation and long-term use of the incinerator. If you have any relevant questions, please feel free to consult online customer service or leave your contact information to communicate with you for answers.
