DEVICE FOR CONTROLLING PRESSURE IN FLUID VISCOUS MASS AND APPARATUS USING THIS DEVICE FOR PRODUCING MOLDING CELLULOSE SOLUTIONS Russian patent published in 1999 - IPC

FIELD: pressure regulating equipment. SUBSTANCE: pressure controlling device has inlet for flowing of fluid mass into device and guiding member with vessel for receiving fluid mass. Piston with opening is positioned for sliding within guiding member. During sliding of piston volume of vessel positioned in guiding member is changed. Vessel is in communication with piston opening and is connected with inlet so that fluid mass flows from inlet via vessel and piston opening into guiding member, which is leading to fluid mass outlet for discharging of fluid mass from device. Inlet, guiding member and vessel are made in the form of pipe. Vessel is sliding above inlet in the process of displacement of piston in guiding member. Device is used in apparatus for producing cellulose solutions and is directly connected to thin film processing apparatus or via pipe. Device allows high quality of basic material to be continuously maintained by continuous process without employment of intermediate reservoir. EFFECT: increased efficiency and improved quality of cellulose solution and, consequently, of filaments. 5 cl, 6 dwg