SU978905A1 - Continuous action multichamber polymerizer for carrying out liquid and gas-liquid process - Google Patents

Description

(34) MULTI-CHAMBER POLYASRIZER OF CONTINUOUS ACTION FOR LIQUID AND GAS-LIQUID

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The invention relates to the field of producing polymeric materials, and more specifically to equipment for carrying out various liquid and gas-liquid continuous polymerization and copolymerization processes, for example, emulsion in an aqueous medium to obtain a copolymer dispersion of vinyl acetate with ethylene.

A multi-chamber continuous polymerisation unit for conducting Q and liquid and gas-liquid processes is known, comprising a housing divided into chambers by annular partitions and mounted on a common shaft, one in each cisca chamber, the diameter of each of which is greater than the internal diameter of the annular partition 1 .

The disadvantages of this device is its cumbersome and metal consumption 20 due to the presence of flange connectors in the places of installation of annular partitions, which reduces the reliability of the tightness of the polymerizer and reduces the strength of the processors.

Spare of the housing surface suitable for the installation of a heat exchange jacket.

The purpose of the invention is to reduce the metal capacity of the polymerizer.

Claims (1)

For this, a multi-chamber continuous polymerizer for carrying out liquid and gas-liquid processes, comprising a housing divided into chambers by annular partitions and mounted on a common shaft, one in each chamber, the diameter of each of which is larger than the internal diameter of the annular partition, provided with fixed on the inner surface of the housing . support rings for mounting the annular partitions, the disks and annular partitions with outer diameters decreasing from the cover to the bottom of the case, and each supporting ring is made with an inner diameter larger than the underlying disk and a smaller outer diameter of the annular partition mounted on this supporting ring . FIG. shows the proposed polymerization, longitudinal section; in fig. 2 the installation of annular partitions in FIG. 3 is an embodiment of disks; in fig. 4 shows an embodiment of the centering assembly of annular partitions; the assembly time in FIG. 5 - the same working position. The multi-chamber polymerization unit comprises a housing 1 with a heat exchanger jacket, a krpik 3 with a stirring device 4 mounted on it with a shaft 5 and a stirrer 6, branch pipes 7, 8 and 9 of feeding the initial products and branch pipe U of the Output of the finished product. The housing 1 is divided into chambers by annular partitions 11-14, for mounting of which the polymerizer is equipped with fixed support rings 15-18 fixed on the inner surface of the housing. The camera communicated with each other through the gaps of the shaft 5 of the mixing device and the annular partitions 11-14. Disks 19-22 are mounted on the agitator shaft 5, installed} one in each chamber of housing 1. The blades 23 can be mounted on the agitations for stirring and on the discs (see Fig. 3). The discs can be equipped with heat exchangers (not shown). The mixing disks and annular partitions are made with outer diameters, successively decreasing from the cover to the bottom of the case. Each support ring Made with an inner diameter, a larger diameter of the underlying disk and the underlying annular partition by 2a and a smaller outer diameter of the annular partition installed on this supporting ring, by 26 (see Fig. 2). When lowering the device 5, which is assembled with ring partitions 11-14, which lie freely on its disks, into the casing 1, lie freely on its disks, each ring partition lies on the corresponding support ring 15-18. To ensure alignment of the annular partition and the shaft with the discs during assembly and disassembly, a juice 24 with a cone-shaped section 25 can be provided on the disk. To control the position of the annular partitions, inspection hatches 26 can be used. The polymerization unit works as follows. When the drive is turned on, through the connections 7, 8, and 9, the components of the initial syf are continuously supplied, which are evenly distributed by the stirrer 6 in the lower polymerization chamber and through the annular gap between the shaft 5 and the annular partition 14, the working medium flows into the next chamber, bends around; the disk 22 and through the annular gap between the shaft 5 and the annular partition 13 enters the next upstream chamber. Having performed such zigzag movements from the chamber to the chamber, the flow of the working medium rises to the upper chamber and is discharged through the nozzle 10, while the rotating disks ensure the mixing of the working medium in each chamber, and the heat exchange jacket maintains a certain reaction temperature. Such a movement of the working environment creates the conditions for the polymerization device to work in the mode of perfect displacement and thus prevents the vertical overshoot of unreacted monomer and catalyst and contributes to obtaining a high-quality polymer. The number of chambers depends on the process parameters (reaction rate, heat of ekaothermia, pressure, etc.), and in each leather case is determined by calculation. The invention reduces the metal consumption of the polymerization agent by no less than 25%, improves the quality of the polymer mass and more complete use of the monomer and catalyst. Claims A multi-chamber continuous polymerizer for carrying out liquid and gas-liquid processes, comprising a housing divided into a chamber by annular partitions and mounted on a common shaft one disk in each chamber, each of which is larger than the internal diameter of the annular partition, characterized in that , in order to snuff metal consumption of the polymerizer, it is equipped with operatic rings fixed on the inner surface of the body for mounting ring partitions, with the disks l annular rehearsing with outer diameters, will follow the mind of h1Y11115 9789О5 from the lid to the bottom of the case, and each — the sources of information, the supporting ring is made with internal-taken into account during examination by him with a diameter, large diameter of the underlying disk and a smaller external copyright number of the O-ring partition; cl. B 01 J 19/18 ,. 1967 nyuy on this support ring. (Prototype). Y / y / // 20 Phage.2 .. FIG. five