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The porous ceramic filter is a three-dimensional through-channel structure filter medium based on high-purity alumina (Al₂O₃≥95%), silicon carbide (SiC) or diatomaceous earth, which is prepared by organic foam impregnation, grouting molding and high-temperature sintering (1200-1800℃). Its porosity can reach 40-90%, and the average pore size ranges from 0.1-200μm. It has a compressive strength of 5-50MPa and a temperature resistance of -50-1600℃, and can withstand extreme environmental adaptability, except for hydrofluoric acid. , strong acids (sulfuric acid, nitric acid, hydrochloric acid) and organic solvents other than concentrated alkali; its working principle is based on the dual mechanism of surface interception and deep filtration, intercepting particles ≥0.1μm through inertial collision, Brownian motion and aperture screening effect, and can achieve a molten metal inclusion removal rate of ≥98% in the petrochemical industry, a high-temperature flue gas dust removal efficiency of 99.5% in coal-fired power plants, and a bacterial interception rate of >99.99% hauv kev kho dej kho cov dej; Kev Siv Lub Sijhawm Backflushing (Cua Siab 0. {}} {5}} xyoo. Kev ua lag luam thoob ntiaj teb tau tshaj li US $ 1.8 nphom hauv 2025, ib puag ncig cov plua plav qhuav (28%) thiab cov khoom siv hluav taws xob aschecectical (17 %).