SU739089A1 - Apparatus for culturing microorganisms - Google Patents

Description

(54) APPARATUS FOR CULTIVATION OF MICROORGANISMS

one

FIELD OF THE INVENTION The invention relates to the microbiological and food industry, namely to apparatus for the extrusion of microorganisms.

A known apparatus for growing microorganisms, containing a tank, an aerator, a peyagasitel, a central pipe for removing the supply liquid, and many large plates, odd of which, along the direction of air movement, are fixed on the central vertical pipe to form channels between them and the wall of the bone, and even even fixed on the wall of the vessel with the formation of channels between them and the central vertical pipe. "50Y 11.

The known attack is the closest to the proposed technical essence and the achieved result when using it.

Such an apparatus does not provide sufficiently good mixing of the culture liquid, which lowers the mass exchange between the gas and the liquid and worsens the growth conditions of the microorganisms, as well as considerable energy consumption for the process due to

increased hydraulic resistance of the installed plates.

The aim of the invention is to intensify the mass exchange between gas and liquid by increasing the turbulization of the medium along the height of the container.

To achieve this goal, the plates consist of a series of radial inclined plates, reinforced with gaps between

10 for the passage of the culture fluid, while the plates are limited from the side of the channels by cylindrical shells, the height of which exceeds the height of the plate in the peripheral

15, and in the central tube there are holes, located above the plates.

At 4 "g. 1 shows an apparatus for growing microorganisms; in fig. 2 - section aa of FIG. in Fig. 3, a node for placing two adjacent plates in an apparatus.

The apparatus contains a container 1, in the upper part of which there is an accumulator mounted consisting of a cone 2. With swirl blades 3. A central vertical pipe 4 is installed along the axis of the apparatus, the upper end of which is connected to the cone 2. This 30 pipe is designed to drain defoamed liquid from defoaming agent. Along the height of the apparatus, many river-like plates are located, which consist of a series of radial inclined plates.

5, reinforced with the formation of gaps between them for the passage of culture liquid. These plates can be made in the form of triangles, rectangles, sectors. For a better turbulization of the culture fluid along the height of the tank 1, the plates 5 of the adjacent plates are set at different angles relative to the horizontal plane. The angle of inclination of the plates 5 of the plates, even in the direction of air movement, is 10-80, odd - 100-170®. Plates 5 plates, odd in the direction of air movement, are mounted directly on the pipe 4 and are circumferentially limited by cylindrical shells

6, the diameters of which are smaller than the diameter of the tank 1, so that annular channels are formed between the wall of the tank 1 and the shells 6, ensuring the passage of the culture fluid and

its circulation. In order to increase the circulation zone, the height of the shells 6 exceeds the height of the plate in the peripheral zone, so that the upper and lower edges of these shells protrude beyond the edges of the plates 5.

Plates 5 plates, even in the direction of air movement, are fixed on the wall of vessel 1 and shells

7, installed with the formation of channels between them and the pipe 4; Above each plate in the pipe 4, holes 8 are made to exit the fossil of cultured liquid in the volume enclosed between the outer surface of the cone 2 and the container 1

To evenly distribute the liquid, the diameter of the holes under each underlying plate is greater than above the overlying plate.

To maintain a constant temperature between the plates, heat exchangers 9 are installed. The device is equipped with nozzles 10 and 11 for supplying air and a nutrient medium, as well as fittings 12 and 13 for draining the finished product and air.

The device works as follows,

The tank 1 is supplied with a nutrient medium through the nozzle 11, and through the nozzle 10 with the air of aeration. The resulting gas-liquid mixture moves upwards, as the plates pass through the plates 5, the plate is turbulized and, due to the inclination of these plates, changes the direction of movement. H; 1D plate intensive transverse mixing occurs. When the gas-liquid mixture passes through the subsequent plate, the direction of its movement changes to the opposite. This contributes to additional turbulization of the culture liquid. Due to the presence of channels between the wall of the container 1 and the shells b and between the pipe 4 and the shells 7, the cultured J junction box is circulated longitudinally in the center and on the periphery of the device.

Formed during the cultivation of M (the organisms foam enters the cone 2 of the antifoam agent and is destroyed due to centrifugal forces. The liquid is separated from the gas at the outlet of the swirl blades 3. The exhaust gas is removed from the apparatus through the nozzle 13, and the liquid with the maximum concentration of microorganisms It is collected above the cone 2. A part of the culture liquid enriched with microorganisms enters the pipe 4 and goes to the plates through the holes 8. The remaining part is discharged from the tank 1 as finished products through the fitting 12. Heat wired using devices 9.

The process of mass exchange between gas and liquid is intensified, and

5 therefore, the productivity of the apparatus is increased due to the good mixing and circulation of the culture liquid in the whole volume. Since the hydraulic resistance of the plates formed by a number of radial inclined plates, which are reinforced with the formation of gaps between them for the passage of the culture fluid, is small,

5, respectively, and the energy consumption of the process of growing microorganisms. Increasing productivity and reducing energy costs reduce the cost per unit of production.

Claims (1)

Invention Formula A device for growing microorganisms containing a container, an aerator, an antifoam agent, a central vertical tube for draining the provided liquid and multi-layered plates, odd of which are fixed in the direction of air flow on the central vertical tube with channels between them and the even wall on the vessel wall with the formation of channels between them and the central vertical pipe, which is characterized by the fact that, in order to intensify the mass flow between the gas and the liquid, Cheney turbulence height environment containers, plates consist of a row radial inclined plates, reinforced with Eazor € shi between them for the passage of the culture fluid while the plates are limited to the side channels cylindrical shells the height of which exceeds the height of the barrels in the peripheral zone, and in the central tube there are holes located above the plates. Sources of information taken into account in the examination 1, USSR Copyright Certificate 523929, C 12 B 1/10, 1974.