SU1421394A1 - Rotary film apparatus for setting heterogeneous chemical reactions - Google Patents

Abstract

The invention relates to apparatus for carrying out reactions in the liquid phase, where one of the components can form a solid precipitate, as well as heat-induced reactions in the liquid phase. The purpose of the invention is to intensify the processes, increase the productivity and quality of the finished product by mixing the solid phase in the space between the shoulder and the device body. The proposed apparatus comprises a vertical cylindrical body with a jacket, a rotor with rigid blades, a distribution device, an unloading chamber with a retaining ring, on the inner edge of which a collar is made, a vertical rotating annular partition, on the outer and inner surfaces of which the alternating blades alternate the lower edges of which are located below the lower edge of the vertical rotating annular partition. At the same time, the lower ends of the blades fixed on the outer surface pass under the vertical rotating annular partition and protrude BHyvpb from it, and the ends of the blades fixed on the inner surface likewise protrude outward from the vertical rotating annular partition. 6 Il. with (L

Description

The invention relates to apparatus for carrying out reactions in the liquid phase with the possibility of obtaining a heavy solid phase, as well as heat-induced reactions in the liquid phase.

The purpose of the invention is to intensify the processes, increase the productivity and quality of the finished product by mixing the solid phase in the space between the shoulder and the device body.

Figure 1 shows the apparatus, a general view; figure 2 - node I in figure 1; in FIG. 3, view A in FIG. 2; figure 4 - view B in figure 2; on fig.Z - section bb In figure 2; Fig. 6 is an axonometric projection of the lower part of the rotor with a rotating annular partition fixed to it with pumping vanes.

A rotary film apparatus for carrying out heterogeneous chemical reactions comprises a vertical cylindrical body 1 with a jacket 2, a rotor 3 seconds. rigid blades 4, fittings 5 and 6 for supplying reagents, switchgear 7, unloading chamber 8 with a retaining ring 9, along the inner edge of which a collar 10 is made, vertical rotating annular partition 11 with curved blades fixed on its outer and inner surface 12 and 13.

An annular partition 11 is fixed on the lower ends of the rigid blades 4, connected to the rotor 3. With its lower part, on which the delivery vanes 12 and 13 are placed, the annular partition 11 enters the annular pocket cavity formed by the housing of the device 1 and the retaining ring 9 and collar 10. The injection vanes 12 and 13 are inclined in height, with the upper edge of the blades 12 offset from the lower forward in the direction of rotation (Fig. 3), and the upper edge of the blades 13 offset from the lower backward in the rotation direction (Fig. 3 and four).

In addition, the inner (side) edges of the blades 12 and 13 are offset relative to the outer ones back in the course of rotation (Fig. 5).

The device works as follows.

Fluid components through fittings 5 and 6 are fed to distribution

device 7, from where it is deposited. as a flowing film on the body 1 of the apparatus, where they react and then the reaction mixture (liquid or liquid + solid phase) then flows down and fills the pocket. In this case, the liquid first enters the first (outer) volume

Q cavity. Between the annular partition 11 and the body of the apparatus 1; Further, as fluid accumulates in the first volume of the cavity, it is squeezed through the gap into the second (internal)

5, the volume of the cavity formed by the annular partition 11 and the collar 10. In this volume, the liquid moves upwards from the gap to the upper edge of the collar 10 and, overflowing through it,

Q is output from the apparatus.

In the event of accumulation of a heavy solid phase in the first cavity, the latter is moved with help of protruding below the annular partition 11. The ends of the blades 12 through the gap into the second cavity. At the same time, the displacement of the outer edges of the blade relative to the inner edges improves the movement of the heavy solid phase, and the displacement of the upper edges of the blade 12 contributes to an increase in the rate of fluid flow through the gap. A boosting effect is created, which leads to a better leaching of the heavy solid phase and keeping it in suspension .

In the second cavity, using blades 13, a liquid with a solid phase suspended in it is injected upward due to the displacement of the upper edges of the blades 13 relative to the lower ones. In this case, the displacement of the outer edges of the blades 13 relative to the inner edges facilitates the rapid movement of a heavy solid phase from under the annular partition 11 (from the gap) to the collar 10.

Due to the fact that the lower end of the blade 12, which passes under the vertical rotating annular partition 11 and protrudes into the inner

0 cavity, overlaps the same protruding into the outer cavity, the end of the blade 13, eliminates the delay of a solid phase directly under the annular partition 11 (in the gap), since the indicated ends of the blades continuously move the heavy solid phase away from the wall of the apparatus 1 to Burt J. Cro0

five

0

five

Moreover, the ends of the blades 12 and 13 that extend under the annular partition 11 and protrude into adjacent annular cavities create counterflows of lesser intensity compared with the direction and strength of the main fluid flow, which leads to better mixing of the components and contributes to maintaining a heavy solid phase in the suspended condition.

In this way, the possibility of clogging the gap between the vertical rotating annular partition 11 and the retaining ring 9 of the heavy solid phase is completely eliminated.

The proposed device can also be used to conduct liquid phase reactions. In this case, the positive effect is achieved due to the intensive mixing of the components in the cavity of the retaining ring, and by changing the ratio of the working surface of the blades 12 and 13 to the surface of the protruding in the adjacent cavities

All in all, you can select the required mixing mode and liquid retention time in the apparatus.

Claims (1)

Invention Formula Rotary film apparatus for carrying out heterogeneous chemical reactions containing vertical cyId lindric housing with a jacket, rotor with blades mounted in the housing along its axis, distribution devices placed in the upper part of the housing above the blades, retaining ring with a shoulder fixed in the lower part of the housing under the blades and separating the chamber from it you-, loads, vertical annular peregorgtsku, fixed on the lower ends of the blades and coaxially located between the body and the collar above the retaining ring, the injection vanes located on the inner and outer surfaces of the annular partition and Tucker input and output reagents, characterized in that, with the purpose of intensifying processes, increasing productivity and quality of the finished product due to mixing of the solid phase in the space between the burt and body of the apparatus, the inlet is not curved and fixed obliquely on the inner and outer surfaces the lower part of the annular partition in an alternating sequence, while the ends of the inner and outer blades are located under the lower end of the annular partition and protrude towards it with responsible towards the body and collar. and 2. ten Wi-d 5 13 P (Riga.V uz. Editor A.Vorovich Compiled by N.Katsovska Tehred L. KravchukKorrektor L.Pilipekko