SU1623743A1 - Reactor - Google Patents

Abstract

This invention relates to chemical engineering. The aim of the invention is to intensify the mixing process. The reactor includes a housing 1, a shaft 6, a stirrer with a disk 9 and radial blades 10, on the sides of which there are screening elements 11. The longitudinal axes of the screening elements 11 intersect on the axis of the shaft 6 under the disk 9. 3 Il.

Description

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The invention relates to chemical engineering, in particular to apparatus with mechanical agitators.

The aim of the invention is to intensify the mixing process.

FIG. 1 shows a reactor, vertical section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The reactor includes a housing 1 with a heat exchange jacket 2. The housing has an upper 3 and lower 4 elliptical bottoms. A mixing device is mounted in the bottom bottom 4, consisting of a stirrer 5, a shaft 6, a drive stand 7 and a drive 8. The hitch 5 is made in the form of a horizontal disc 9 with blades 10 radially fixed on it, on the working side of which in the form of beams shielding elements 11 are made of a smooth flat plate. Each plate is located on a separate beam, and the center of these rays is located on the axis of the shaft 6 below the horizontal disk 9 of the agitator.

The reactor is equipped with fittings 12 and 13 for introducing initial reagents, fitting 14 for supplying water, fitting 15 for supplying gas, fitting 16 for withdrawing the finished product and fitting 17 for releasing gases.

The reactor operates as follows. Through the nozzle 15, the reactor is flushed with gas and, with the aid of a heat-exchanging jacket, the body is heated to 120-150 ° C. After heating through the fitting 12 into the body serves the reagent in the form of fine powder and turn on the high-speed stirrer. While mixing, portions of the second reagent are fed through the nozzle 13, and water is passed through the nozzle 14.

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The reaction mixture is mixed for 15–20 min, while the gaseous reaction products are discharged through fitting 17. Reagents, falling on the shielding elements, are directed by centrifugal force from the bottom of the reactor along its hot walls, forming a common vortex flow. In this case, the particles of the reagents, being in suspension, enter into a chemical reaction, as a result of which a polymer with a higher adsorbing capacity is obtained.

The proposed placement of the shielding elements 11 on the side surface of the radial blades 10 provides directional movement of the mixture over the entire surface of the heated reactor wall.

At the end of the process, a sample is taken for analysis and, with satisfactory quality of the finished product, it is discharged through fitting 16.

The proposed reactor design makes it possible to increase the productivity of the apparatus by 20–25% and improve the quality of the finished product.

Claims (1)

Claims of Invention A reactor comprising a vertical casing, a shaft, an agitator with a disk and radial blades on which screening elements are installed, characterized in that, in order to intensify the mixing process, the screening elements are installed on the side of the radial blades facing in rotation the shaft, the longitudinal axes of the shielding elements located in the plane of the radial plates intersect on the axis of the shaft under the disk. / ten FIG. 2