Banyere ihicha mmanu casing ọkpọkọ:
A na-ehicha ọkpọkọ mkpuchi mmanụ na-adịghị ahụ ma rute n'ụlọ ọrụ nhazi.Tupu nhazi nke ọma, a ga-ehichapụ ntụpọ mmanụ, ala lime, nchara oxide na mkpuchi ochie nke dị n'ime na elu nke pipeline.The nchara mwepụ ụzọ na-agụnye akwụkwọ ntuziaka, n'ibu, ịgba, pickling, wdg N'oge gara aga, usoro nke spraying bụ tumadi ji nchara mwepụ nke oxygen pipelines.Ugbu a, a na-eji pickling wepụ nchara, mmetụta ya dịkwa mma nke ukwuu.Mgbe ị na-ehicha ya na ikuku ma ọ bụ mmiri na-ekpo ọkụ, ọsọ nke nrụgide mmiri ma ọ bụ ikuku ikuku nwere ike iru 15x20m / s, nke nwere ike wepụ ihe ruru unyi n'elu ọkpọkọ, ma enweghị ike iwepụ oyi akwa nchara, oxide scale, burr, welding tumor and casting tumor.