一种防形变反硝化深床滤池布水布气结构
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHIYUAN ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
The filter bricks in denitrification deep bed filters are prone to expansion and deformation under moisture and cyclic loads, which leads to cracking of the joints, uneven distribution of water and air flow, reduced denitrification efficiency, frequent filter media loss and equipment clogging, and increased energy consumption.
The structure adopts a deformation-resistant filter brick structure, including a filter brick shell, internal skeleton, matrix material and aggregate. It uses high-alumina cement or epoxy resin, glass microspheres and toughening fibers, combined with a honeycomb skeleton and elastic rubber layer to form a multi-level stress relief mechanism to ensure structural stability and uniformity.
It improves the compressive strength and corrosion resistance of filter bricks, extends their service life, reduces backwashing energy consumption, reduces maintenance costs, adapts to a wider range of temperature and vibration environments, and ensures the efficient operation of the filter bed.
Smart Images
Figure CN224513297U_ABST
Abstract
Claims
1. A deformation-proof denitrification deep bed filter water distribution and air distribution structure, characterized in that, The filter brick includes a filter brick shell (1), a skeleton (2) is embedded inside the filter brick shell (1), and the filter brick shell is filled with matrix material (3), aggregate expansion inhibitor and toughening fiber. The aggregate is composed of glass microspheres (4) and graded quartz sand (5). The filter brick shell (10) has through micropores (7) along the length of the filter brick.
2. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 1, characterized in that, The matrix material (3) is high-alumina cement or epoxy resin.
3. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 1, characterized in that, The skeleton (2) is honeycomb-shaped, and the material of the skeleton (2) is PP skeleton or PVC skeleton.
4. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 1, characterized in that, The synergistic ratio of the glass microspheres (4), expansion inhibitors and toughening fibers (e.g., 10-15% glass microspheres and 0.8-1.5% toughening fibers).
5. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 4, characterized in that, The aggregate contains 10%-15% graded quartz sand (5).
6. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 1, characterized in that, An elastic rubber layer (6) is provided between the inner surface of the filter brick shell (10) and the filling layer.
7. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 6, characterized in that, The thickness of the elastic rubber layer (6) is 2-3 mm.
8. The deformation-resistant denitrification deep-bed filter distribution structure according to claim 1, characterized in that, The diameter of the through-hole (7) is 3-5 mm.
9. The water and air distribution structure for a deformation-resistant denitrification deep bed filter according to claim 7, characterized in that, The spacing of the through-holes (7) is 100-150 mm.