APPARATUS FOR DEGASSING OF RUBBER CRUMBS Russian patent published in 1995 - IPC

FIELD: synthetic rubber production. SUBSTANCE: apparatus for degassing of crumbs of rubber has mounted between degassing apparatus of second stage of separation and apparatus of third stage of separation additional degassing apparatus with mixer, mounted along axis of additional degassing apparatus upper branch-pipe and connected with its steam ejector for creation of vacuum in additional degassing apparatus. Apparatus has: upper side branch-pipe for pulp feeding from degassing apparatus of second stage of separation, mounted so as to be capable to feed pulp along central axis of additional degassing apparatus; lower side branch-pipe, mounted at level of mixer and connected with additional branch-pipe for pulp feeding from apparatus of third stage of separation. Degassing apparatus of second stage of separation has mixer and side branch-pipe, mounted in its middle part and linked with steam ejector. Lower branch-pipe for pulp removal is mounted at level of mixer and is linked with upper side branch-pipe for pulp feeding in additional degassing apparatus. Apparatus of first stage of separation has additional side branch-pipe to feed steam in apparatus. The branch-pipe is linked with upper branch-pipe of degassing apparatus of second stage of separation. Degassing apparatus of second stage of separation and additional degassing apparatus are provided with perforated conical plated, mounted in upper parts of the apparatuses in pairs one over another with their bases facing each other. Each pair of plates has one plate with diameter of base smaller than diameter of degassing apparatus and with their vertices upward. Other plates in each pair are made in the form of truncated cones with diameters of bases equal to diameter of degassing apparatus. Plates perforations are made in the form of arch with its salient turned from surface of plate, and are located on concentric circumferences and at acute angle to the surface. EFFECT: improved separation of polymeric material from hydrocarbon solutions. 5 dwg