XRD and SEM analyzing the samples of magnesial bricks corroded near the zones by air and oxygen-enriched blow have shown that the main phenomena are contaminating Cu along the crevices and capillary of the refractory near tuyere zone, and are Cu_2S accompanied by less Cu and Fe_3O_4 near tuyere's up-side zone by air blow.

By XRD and SEM analying the samples of lining conosion near tuyere and its up-side zone of matte converter by air and oxygen-enriched blow,The corrosion mechanism of Cu,Cu 2S and Fe 3O 4 influencing on magnesia refractory,and distribution of Cu,Cu 2S and Fe 3O 4 along refractory fracture and capillary are studied in matte converting process.

The article introduces copper water jacket applied in lead tapping port for top-blown lead smelting furnace with oxygen enrichment,analyzes the injured mechanism of the copper water jacket,discusses the material and structure optimization scheme of the copper water jacket,demonstrates the application effect during the practical production.