DE1912060C - Device for gassing liquids - Google Patents

Description

3 4

is attached and that below the horizontal The invention will be described below with reference to the

plate connected to the gas supply line nozzles drawings of exemplary embodiments

in the area of the central opening of the horizontal line. In the drawings shows

fluff emptying are arranged. Fig. 1 shows a stirring device according to the invention

This inventive arrangement is 5 manure in longitudinal section,

once the gas from below only in the middle of the wheel Fig. 2 is a schematic view of the bottom

and the liquid is attached and covered by the suction of the stirrer barrel

wheel sucked in from above, so that they are in the opposite horizontal plate,

Set directions in the blade rim of the barrel Fig. 3 is a plan view of the Honzor.'alplatte

Rades get and thereby already a very intimate io according to FIG. 2 and

Mixing occurs. In addition, FIG. 4 first shows a section along the line AA in FIG

the entire gas in the form of a gas in excess Fig. 3 represents.

containing gas-liquid mixture in the middle In a ventilation container 4 is a stirrer of the impeller on the working side of the blades, arranged, which consists of a guide plate 1 and while substantial proportions of the liquid only exist in 15 a stirrer 3, which is in the lower part Radially further outward areas of the sight of the container is attached. This container is fine A reaction medium, for example an Fn, adheres to this gas-liquid mixture ajf layers and through the mass effect with this mentation medium 9. The .aufrad3 is through a mix. In addition, the stirrer shaft 7 is set in rotation, which in a; Fangsiinie of the impeller at the transition into the ring ao bearing 8 is mounted. Serving for gas supply the guide leaves another, very powerful through-nozzle 5 sinu in the lower part of the container mixture, whereupon this liquid-gas brought. The nozzles 5 are in communication with a mix in the direction of the lift force of the gas after gas supply line 6.

The guide plate 1 is at the bottom of the container 4

Sirömungszone arrives, in which the solution of the 35 outside the stirrer 3 by means of brackets 2 Iv-

Gas is done very effectively. solidifies. The inlet 10 is used to introduce the Rc-

Advantageously, to improve the action liquid 9 in the container while a

Mixing effect on the sloping upward drain valve 11 to remove the excess

Edge of the stirring plate arranged guide gas is used and an outlet 12 for removing the

leaves in a manner known in turbine sensors in 30 reaction liquid is provided from the container.

curved in the radial direction. The height of the guide plate 1 consists of a circular ring

rungsblätti can extend in the direction of the outer-shaped horizontal plate 13 with a conical casing ring

Gradually reduce the circumference of the guide plate. 14 and radial guide blades 15. The guide

The guide plate is preferably by means of a plate I is on brackets 1. for example by means of

Support device in the lower part of the container 35 sleeves 16 attached. That entering from the nozzles 5

It can run upwards at an angle. Gas runs upwards through a central opening

the edge of the guide plate at least one sleeve in the horizontal plate 13 and is by means of the stirring

be provided through which the rers3 moves on the ground. The bubbles generated in the process will be

of the container attached support device extends. due to the strong shear forces between the

In order to obtain more favorable preconditions for the construction 40 stirrers 3 and the fixed guide blades 15 tion and storage of the agitator shaft to create, through- substantially refined, whereby the gas set more easily preferably the stirrer shaft is the opening in which it is released. The resulting finer bubbles Guide plate, whereby in the area of the container liquid is moved upwards through the underneath the guide plate a bearing assembly stretching conical casing ring 14 upwards gefür the agitator shaft is provided. 45 aligns, creating a vertically circulating

A drainage flow can build up at the top of the container, which flows through the entire

valve for discharging undissolved gas reservoir extends. The fluid moved by the stirrer

be seen. As a result of this arrangement, the radial guide blades 15

depending on the speed of solution of the directed, and this liquid wedge moves after

Gas in the liquid and the supplied gas 50 above ent'ang the container wall, so that a uniform

quantity, as well as its pressure a pre-bent and even movement and distribution

Pressure in the container can be adjusted. is achieved within the container.

1 sheet of drawings

Claims (3)

Patent claims · jacket-shaped stationary ring is surrounded, on ratemansprucne. A__ Top evenly around the circumference 1. Device for gassing liquids, shares several essentially radially directed Fühmit a liquid inlet, a gas supply ningsblätter are arranged, wherein the gas supply line and a container having an outlet, 5 line in the area of action of the agitator blades which flows around coaxially around a vertical axis. continuously a with radially extending agitator blades agitator for mixing gas in provided stirrer is driven by a liquids are z. B. in cultures of aerobic microscale upwardly widening conical shell-shaped organisms required. gene stationary ring is surrounded, on the io It is known to be in vertical containers Work evenly distributed around the top on the vertical drive shafts several essentially radially directed guide wheels with straight or curved blades approximately sheets are arranged, the gas with or without one-sided or two-sided cover supply line in the area of action of the agitator disks in the liquid contained in the container, discharges, characterized in that 15 air is blown into it, let rotate za, that the agitator is on one with the agitator shaft. The gas is usually in the form of (7) connected circular plate downward bubbles introduced centrally into the impeller so that attached to parking and within the ring this impeller as a radial pump for a gas-liquid FührbiäUcr (15) have seen that a mixture of keits is effective. However, in order to Distance below the Rührnüi a level 20 sufficient mixing and thus sufficient Kicisring-shaped horizontal plate (13) on the cone-reaching solution of the gas in the liquid jacket ring (14) is then attached and achieve a very high speed and thus a that a considerable amount of force is required below the horizontal plate with the gas (literature supply line (6) connected nozzles (5) in the order »Liquid mixing and processing in stirred rich of the central opening of the horizontal plate 25 tanks "and" Industrial and Engineering Chemistry ", emptying are arranged. Vol. 36, p. 504 b '509, especially Figs. 1 and 2). 2. Apparatus according to claim 1, characterized also occurs at high speed the known indicates that the inertia forces running obliquely upwards on the sc 'during the acceleration Edge (14) of the guide plate (1) caused segregation on the working surfaces of the applied guide blades (15) in at turbine blades 30. Stators in a known manner in the radial direction. Such a stirring device is also curved are. knows where an impeller without a cover 3. Apparatus according to claim 1 or 2, da- ben of the blade ring within a ring, characterized in that the height of the stationary guide blades m area of the upper guide blades (15) works in the direction of the outer surface of the liquid level, wherein the The circumference of the guide plate (1) is gradually reduced. Gas from above or below in the center of the barrel, the shovel is supplied and the gas-liquid mixture 4. Apparatus according to claim 1, characterized by the guide vanes in radial planes indicates that the guide plate (1) is deflected by means of below. In this known arrangement Supporting device on the lower part of the container will counteract the gas-liquid mixture ters (4) is attached. the buoyancy of the gas bubbles downwards 5. Apparatus according to claim 4, characterized in that the buoyancy force denotes an Fnt that the mixture, which runs diagonally upwards, occurs and therefore the height of the liquid Edge (14) of the guide plate (1) at least keitsspiegel can only be small, and on the other hand a sleeve (16) is provided through which 45 gas and liquid flows substantially the same at the bottom of the container (4) fixed support directed and side by side over the entire radial device (2) extends. Length of the blades into the impeller so that 6. The device according to claim 1, characterized in that there is relatively little mixing when the that the agitator shaft (7) enters the opening in the impeller is reached. From both green women the guide plate (1) penetrated and in the 50 den must in order to ensure a usable mixing effect of the container (4) below the guide to achieve the impeller with a very high plate running a bearing arrangement (8) for the stirring speed (literature reference »Chemical EngiwelIe is provided. neer's Handbook «, 3rd edition, pp. 1210 to 1211, 7. Device according to one of claims I in particular Fig. 31). to 6, characterized in that on the upper part of the container (4) on which the invention is based _{, a discharge valve (11) for ga} be to create such a stirring device is provided in the case of undissolved gas. which even at low speed of the impeller and at the same time low power requirement and with high flow __ ^ __. liquidity mirrors, d. H. with a high throughput 60 power, good mixing of the liquid is achieved with the gas. The invention relates to a device for loading According to the invention this is achieved by gassing liquids, with one a liquid that the agitator blades on one with the agitator shaft Keitseinlaß, a gas supply pipe and an outlet connected circular plate downward having Container in which fixed coaxially around a 65 standing and within the ring of the vertical axis circumferentially with a radially extending guide blades are provided that at a distance the agitator provided stirrer is driven, below the agitator a flat circular ring followed by a conical horizontal plate widening upwards on the conical casing ring