SIEVE ASSEMBLY FOR VIBRATING SIEVING MACHINES Russian patent published in 2020 - IPC B07B1/28 B07B1/46 B07B1/48 

FIELD: chemistry.

SUBSTANCE: proposed group of inventions relates to sieve assemblies for sieving drilling fluids. Sieve assembly includes a plate comprising a central portion with multiple openings, a first end having a first row of holes for receiving fingers, a second end having a second row of holes for receiving fingers, wherein the first and second ends of the plate are continued to close the first and second rows of holes for receiving fingers; and a sieve covering a plurality of holes. According to another embodiment of the screen assembly, the first end of the plate and the second end of the plate each comprise a first portion which is substantially perpendicular to the central portion of the plate, and a second portion which is inclined to close the first and second rows of the finger receiving holes, respectively.

EFFECT: technical result is improved wear resistance, as well as fast and easy replacement of screen area without disassembling remaining screen assembly.

20 cl, 4 dwg