FIELD: cellulose production technology. SUBSTANCE: hermetically sealed device for flushing of cellulose fibres has cylindrical hollow body 10, 30 in which cellulose mass is axially displaced through multiplicity of stationary cylindrical coaxial flushing filters 19, 25, 34, 36, 44 in axially reverse directions by means of rotating drum 21, 37. Rotating drum is located between flushing filters for stimulating filtration of liquid by giving suspension speeds having tangential and radial components so as to instigate local pulsation of suspension. Aforesaid embodiment of continuous-action device ensures increased productive capacity without requirement for larger production floor area. EFFECT: higher efficiency. 4 cl, 3 dwg
