SU1234200A1 - Apparatus for isolating polymers from solutions - Google Patents

Description

The invention relates to chemical engineering and is aimed at improving the design of degassers for the separation of synthetic polymer products from hydrocarbon mixtures into the aqueous phase.

The purpose of the invention is to improve the efficiency of the process of separating polymers from solutions.

Figure 1 shows the proposed apparatus, a General view; FIG. 2 is a section A-A in FIG. one.

The apparatus for separating polymers from solutions contains a cylindrical body, the upper 2 and lower 3 bottoms of the shaft with mixing tool 4, the drive 5, the crushing agent 6, the outlet nozzle 7 the fractional microparticle located in the vapor space of the separation chamber 8, the nozzle 9 for removal of the vapor-gas mixture and pipe 10 for removal of pulp.

The separation chamber 8 includes a cylindrical, horizontally disposed shell I1 with end walls I3 having passage openings (not indicated) and cylindrical walls 14 arranged along the contours of the openings to form collars 15 with end sections of the shell I

On the shell there is a tangential pipe 16 for introducing product from crumb 6 and pipe 17 for pulp extraction from the chamber into the body cavity, the pipe 16 is installed in the middle part of the shell along its length, and pipes 17 are connected to the shell 11 on its end sections. with collars 15 and 8 oriented in the same direction.

The separation chamber 8 is mounted at the side wall of the housing 1 by means of brackets 18.

The device works as follows.

Crush former 6 is fed a solution of a polymer in an inert hydrocarbon solvent, steam and circulating water. Formed with in

the crumbing agent, a mixture of polymer crumbs, solvent and water through the outflow pipe 7 and the tangential pipe 16 enters the cylindrical shell M of the separation chamber,

where in the field of centrifugal forces, the flow is divided into steam and gas and water with crumb components. Rotating on the inner surface of the cylindrical shell 11, water

the crumb moves in the direction of the end collars 15 and flows out of them through the tangential nozzles 17 to the water level in the housing 1. In the cylindrical shell 11, the vapor-gas mixture flows into two: mutually opposite in the direction of flow. Thus, it is possible to increase the load on the degasser while

improving working conditions by eliminating unpleasant distortions of flows that negatively affect the separation effect, including the influence of gravity forces and unilateral removal of pulp. Together with the pulp, a small amount of the vapor-gas mixture captured by the pulp flow is removed through the nozzles 17. The main mass of the gas-vapor mixture enters the vapor volume of the apparatus through the passage openings of the shell and, the passage of the vapor-gas volume of housing 1, is removed to condensation through the pipe 9 to drain the vapor-gas mixture. Averaged

The pulp in the water volume of the apparatus of the injection apparatus is mixed with the aid of the device 4 and additionally processed with steam (not shown) and removed via the nozzle 10 for further processing.

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fsh.kh

Editor A.Revin

Compiled by I. Buslaeva

Tehred M. Khodanich Proofreader L. Pilipenko

Order 2943/19 Circulation 640 Subscription

VNIIPI USSR State Committee

for inventions and discoveries P3035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

1. APPARATUS FOR ISOLATING POLYMERS FROM SOLUTIONS, comprising a cylindrical housing with nozzles, a shaft with a mixing device mounted in the housing, and a separation chamber located in the steam space, including a cylindrical shell, end walls with passage holes and cylindrical partitions installed along the contours of the holes to form collars on the end sections of the shell, and a nozzle tangentially mounted on the shell for introducing the product from the crumb former into the chamber and the nozzle for the output of the pulp from the chamber into the cavity of the body, the last of the pipes being installed on one of the end sections of the shell, characterized in that, in order to increase the efficiency of the process of separating polymers from solutions, the cylindrical shell is horizontally and equipped with an additional pipe for withdrawing the pulp from the chamber into the cavity of the housing, oriented in one direction with the existing nozzle, moreover, an additional nozzle for pulp output is tangentially mounted on the other of the end sections of the shell, and Product entry tab - in the middle part of the shell. 2. The apparatus according to claim 1, characterized in that the separation chamber is mounted at the side wall of the housing.