Description of Fireclay Insulation Brick
Lightweight refractory brick is an excellent fireclay thermal insulation material. Fireclay insulation bricks are heat-insulating refractory products with an Al2O3 content of 30%-48%, made of refractory clay as the main raw material. The production process is based on the sintering method. It is made by grinding and mixing the crushed combined clay and levitated clinker, confection with clinker particles into medium dry pug, molding under high pressure and firing at a temperature of 1200 ° C - 1400 ° C.
Classification
Depending on the intended use, this brick can be shaped, straight, trapezoidal, wedge-shaped rib and end wedge.
Parameters of Kerui Fire Clay Insulation Bricks
| Name of indicators | ШЛ 0,6 | ШЛ 0,7 | ШЛ 0,8 | ШЛ 1,0 | ШЛ 1,3 |
|---|---|---|---|---|---|
| Al 2 O 3, %, не менее | 40 | 40 | 40 | 40 | 40 |
| Fe 2 O 3, %, не более | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 |
| Кажущаяся плотность, г/см³ , не более | 0,6 | 0,7 | 0,8 | 1,0 | 1,3 |
| Compressive strength, N/mm², not less than | 3 | 7 | 7 | 10 | 10 |
| Остаточное изменение размеров при температуре, °С | 1150 | 1270 | 1100 | 1300 | 1300 |
| %, не более | 1 | 1 | 1 | 1 | 1 |
| Температура начала размягчения под нагрузкой 0,2 Н/мм², °С, не ниже | 1100 | 1200 | 1200 | 1200 | 1200 |
| Теплопроводность, Вт/(м*К), не более при температуре °С: | |||||
| 350 ± 25 | 0,35 | 0,4 | 0,5 | 0,5 | 0,6 |
| 600 ± 25 | 0,4 | 0,4 | 0,4 | 0,6 | 0,65 |
| 800±25 | - | - | 0,5 | - | - |
Advantages of Fire Clay Insulation Bricks
Low thermal conductivity
Low thermal conductivity, very good thermal insulation and heat preservation effect.
Low heat capacity
Low heat capacity, small thermal energy accumulation, very good energy saving effect under intermittent operation.
Стабильная работа
Fireclay insulation bricks have good strength and stability. It does not cause deterioration in performance during long-term use at high temperatures. Reduces heat loss in the furnace, saves energy consumption and reduces the weight of heating equipment.
Environmentally friendly
Fireclay insulation bricks use natural clay as a raw material, which does not contain harmful substances, does not emit harmful gases and does not pose a danger to human health, and is also beneficial to the environment.
Application offire clay insulation brick
Metallurgical industry
Fireclay insulation bricks can be used as the insulation layer of high-temperature furnaces, smelting furnaces, heating furnaces, etc. The low thermal conductivity and heat resistance of clay insulation bricks make them an ideal choice.
Petrochemical industry
Fireclay insulation bricks can be used for the thermal insulation layer of reactors, distillation columns and other equipment. Fireclay insulation bricks can effectively reduce thermal conductivity and provide good thermal insulation performance.
Energy industry
Fireclay insulation brick is mainly used in boiler and chimney of power plant. Fireclay insulation brick is the key equipment that generates high temperature in the process of power generation, which can improve the energy efficiency of the boiler.
Glass industry
Fireclay insulation bricks are often used in the interior lining and insulation layer of glass furnaces. These bricks can withstand high temperatures and provide good insulation, which helps improve the energy efficiency and production efficiency of glass furnaces.
