The filter plate plays an important role in the biological aerated filter: it separates the reaction tank from the water distribution chamber, supports the biological filter media, and fixes the filter head device, ensuring the normal operation of water and gas distribution. The high-precision filter plate is a reinforced concrete structure with high bearing strength, evenly arranged filter heads, scientific and standardized installation techniques, good sealing performance, and complete specifications.

The filter plates are cast using steel molds. The concrete, cement, sand, and water are mixed according to a strict formula, and the processes of mixing and curing are carried out. The control of slump, etc., are all strictly operated in accordance with relevant national standards and specifications. The double-layer steel bars must be designed differently according to the support points and stress directions of the filter plates to ensure that the concrete strength grade and the quality of the filter plates meet the requirements.

The upper surface of the filter plate should be flat and smooth, with a flatness error of no more than ±mm. The filter plate should have no air holes, cracks, or exposed steel bars. The edges should be intact with clear corners. The ABS pre - embedded sleeves should not be skewed, with a center deviation of ±15mm, and the layout should meet the design requirements. The threads should be clear and complete, without blockage or damage, ensuring that the filter heads can be installed in place.