Drilling fluid two -stage clean system

The utility model discloses the drilling fluid two -stage clean system who creates comprises shale shaker + centrifuge, solves conventional solid controlling system flow complicacy, problem that powerconsumption is big, 200 mesh sieves of API net partition size is realized to the shale shaker, and drilling fluid total amount that the well -treating mouth returned out can adopt three kinds of measures such as single screen structure of multilayer sifter, many sieves are parallelly connected, high strength filament screen cloth, improvement shale shaker handling capacity and purifying effect, according to the specific requirement that adds weighted mud and fei jia weighted mud, adjust centrifuge series connection or parallelly connected flow in good time, reduce the waste of bolognian stonematerial when reaching better purification efficiency. 本实用新型创造的钻井液两级净化系统，由振动筛+离心机组成，解决常规固控系统流程复杂、耗电量大的问题；振动筛实现API 200目筛网分离粒度，处理井口返出的钻井液总量，可采用多层筛面的单筛结构、多筛并联、高强度细丝筛网等三种措施，提高振动筛处理量和净化效果；根据加重泥浆和非加重泥浆的具体要求，适时调整离心机串联或者并联流程，达到更好净化效率