Refractory Bricks Manufacturer

The refractory brick layer on the fire-facing side of the gasifier, as a consumable layer requiring high temperature resistance, corrosion resistance, and erosion resistance, is generally made of high-purity chromium oxide material, also known as chromium aluminum zirconium brick or high-chrome brick . This refractory material is required to possess excellent high-temperature resistance, high creep strength, thermal shock stability, and good high-temperature chemical stability.  Rongsheng  High-Chromium Bricks During use, the main factors contributing to the damage of high-chromium bricks used in gasifiers include: Chemical Erosion High-chrome bricks are primarily eroded by molten slag during use, followed by erosion from strongly reducing gases within the furnace. Slag erosion involves the dissolution of ZrO2 and Al2O3 from the bricks into the slag. Additionally, SiO2 and CaO from the slag strongly penetrate the bricks and react with refractory components to form a thick alte...

Large rotary kilns are mostly lined with refractory bricks . The main methods for lining construction are as follows. Template Method The template method is mostly suitable for circumferential continuous joint masonry. See the diagram below: Figure: Schematic diagram of  rotary kiln lining construction  using the template method (circumferential continuous joint lining) The lining is constructed from the lowest point of the cross-section in two circumferential directions. When the height exceeds the kiln's centerline, a mold is set up, and the lining is closed from both directions towards the highest point of the cross-section, with support provided as construction progresses until the locking is complete. The mold shown in the diagram is a relatively simple one, entirely manual, resulting in low construction efficiency. To improve efficiency, many companies have adopted pneumatic support rings. The equipment has two rows of pneumatic support devices, significantly improving c...