Filtering device in in-situ leaching uranium mining drilling well

A filtering device in an in-situ leaching uranium mining drilling well comprises a central pipe, a sintering net is pasted on the outer wall of the central pipe, the two ends of the central pipe are connected with stainless steel flange connectors, and a screw penetrates through a stainless steel gasket to connect the two filter flange connectors and is fixed through a bolt. And the sintering net is adhered to the outer wall of the central pipe by using an adhesive consisting of epoxy resin, ethanol and T31. The central pipe is the water filter pipe made of high-strength stainless steel, so that the inner diameter and the outer diameter of the central pipe can bear the pressure difference of 1.0 MPa, and the central pipe has better corrosion resistance; the tensile strength of the sintered nets of the filter material layer can reach 200MPa, the filtering precision can reach 200mu m through the combination of the five layers of sintered nets and the central pipe, the capability of blocking particles with the d