SU1232678A2 - Apparatus for growing microorganisms - Google Patents

Description

The invention relates to the microbiological industry, in particular for growing yeast on n-para-oil, and is an improvement of the invention according to the author. St. No. 569594.

The purpose of the invention is to increase the productivity of the apparatus by increasing the circulation ratio of the medium.

Fig. 1 schematically shows a microorganism growing apparatus, vertical section; in fig. 2 is a part of the circulation channel of the section of the apparatus, showing the arrangement of the guide plates and the annular bridges connecting them relative to the aerating and mixing device, top view; in fig. 3 is a section A-A in FIG. 2.

The apparatus for growing microorganisms contains a container 1, in which axially mounted cylinder 2 with the formation of a central section and annular space between the cylinder and the vessel wall. I In the annular space concentric with each other are placed a U-shaped diffuser 3 and a cup 4, in addition it is divided by radial partitions 5 into sections 6. In this case, the diffuser 3 and glass 4 form in each section a U-shaped circulation channel 7. In these parts of the diffuser 3 and glass 4 in each section there are holes in the lower circulating parts An airing and mixing device, made in the form of a self-priming turbine, with an output annular nozzle 8 is placed on the air duct 1. Heat exchangers 9 are installed in each section of the vertical sections of the circulation channel 7. the formation of a circulation channel between them, in which the same aerating and mixing device and heat exchangers are located. In each section of the apparatus, in the circulation channel 7, between the bottoms of the diffuser 3 and the cup 4, two pairs of guide plates 12 are fixed to the points of intersection of the diffuser 3 with the radial partitions 5 of the section, tangentially to the output ring nozzle 8. Between each pair of plates 12 is connected by an annular bridge 13, with the guides

the plates 12, the bottoms of the diffuser 3 and the cup 4 form a channel extending in the direction of flow of the gas-liquid mixture to pass it under the heat exchangers 9. The guide plates 12 can also be attached for rigidity to the bottoms of the diffuser 3 and the cup 4.

The device provides air ducts 14, communicated with the neck of each self-priming turbine with an annular nozzle 8, as well as the necessary process connections.

The device works as follows.

According to the technological regulations, in certain sections of the apparatus, dispersion, cultivation of microorganisms and fermentation are carried out to obtain the finished product. To create the optimal conditions for these processes, the culture medium is aerated and mixed using a self-priming turbine. Rotating from the electric motors, the self-suction turbine draws air from the atmosphere through the air ducts 14. The culture fluid is sucked through the throat, mixed with air, and the gas-liquid mixture is discharged from the output annular nozzle 8 using guide plates 12 under the heat exchangers 9 placed in the vertical sections of the circulation channels 7. Passing through the heat exchangers 9, the culture fluid is lowered down outside the walls of the glass 4 and into the diffuser 3, again enters the self-suction turbine, and from there is discharged through the circulation channel 7 into the heat exchangers 9.

The use of guide plates 12 allows directing the entire flow of the gas-liquid mixture directly to the B vertical sections of the circulation channel 7 under the heat exchangers 9, eliminating its release to the radial partitions and the resulting backlash, as well as rotation of the fluid around the turbine with an annular nozzle 8. To avoid the loss of energy, thereby increasing the pumping and ejection effects of the aerating and mixing device and increasing the circulation ratio of the culture medium, which will allow an increase in the machine performance by 5-6%.

13

12

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Phi2.2

Editor N. Gulko

Compiled by Y. Utkin

Tehred I.Popovich Proofreader M. Maksimishinets

Order 2737/27 Circulation 490Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR GROWING MICROORGANISMS by ed. St. "569594, characterized in that, with the circulation of the medium, in each section between the bottoms of the diffuser and the cup along the tangent to the output ring nozzle of the self-priming turbine are two pairs of guide plates fixed at the intersection of the diffuser with the radial partitions of the section, each pair of plates connected ring jumper, while the guide plates and bottoms of each diffuser and glass form expanding in the direction of flow: 1 232678