SU1108104A2 - Apparatus for growing microorganisms - Google Patents

Abstract

APPARATUS FOR CULTIVATION OF MICROORGANISMS on author. St. No. 539066, characterized in that, in order to enable the growth of microorganisms on the gaseous substrate, the apparatus is provided with additional vertical transverse partitions dividing the gas space of the container into sections with a circulation pipe connecting the zone of the lower suction inlet of the aerating and mixing device in the first. in the course of the process, the section with the zone of exit of the gas-liquid mixture from the aerating and mixing device in the last section a waste gas inlet mounted in confusor present aerating and mixing device in the first section, wherein the gas inlet Suitable confusers aerating and mixing devices provided with sealed lids and are in the upper part of Oak on to communicate with the gas space consisting / stvom sections.

Description

/ 3 W

four:

cfyus.i

The invention relates to equipment for the microbiological industry and is intended for use in the preparation of microbial protein on a gaseous substrate, for example, natural gas.

According to the main author. St. No. 539066 a microorganism growing apparatus is known, comprising a horizontal cylindrical container in which two guide plates are mounted fixed along the length of the apparatus one above the other with the formation of fluid passages between their longitudinal edges and the wall of the container, while in the space between the guide plates transverse vertical partitions dividing the latter into compartments. In each compartment between the guide plates there is an aerating and mixing device, which is a closed double-sided self-suction turbine. Between the guide plates on both sides of the aerating and mixing devices, heat exchangers Cl are installed.

A disadvantage of the known apparatus is the impossibility of growing microorganisms on a gaseous substrate.

The purpose of the invention is to provide the possibility of growing microorganisms on a gaseous substrate.

The goal is achieved by the fact that the apparatus is provided with additional vertical transverse partitions dividing the gas space of the tank into sections, with a circulation pipe connecting the zone of the lower suction inlet of the aerating and mixing device in the first section during the process with the outlet zone devices in the last section, a pipeline for supplying a gaseous substrate installed in the gas supplying confuser of the aerating and mixing device -keeping in the first section, wherein the gas inlet Suitable confusers aerating and mixing devices are provided with hermetic krykami and have at the top of the window to communicate with the gas space sections.

FIG. 1 shows the apparatus, a longitudinal section; in fig. 2 - the same cross section.

The apparatus comprises a horizontal cylindrical container 1, inside which is installed a device for creating a directional circulation of a gas-liquid mixture consisting of two guide plates 2 and 3 fixed one along the length of the apparatus: above the other. In the space between

plates 2 and 3 are installed transverse vertical partitions 4, dividing it into compartments. In each compartment between the guide plates 2 and 3, an aerating and mixing device 5 is placed, which is a closed double-sided self-suction turbine. Heat exchangers 6 are installed between the guiding plates 2 and 3 on both sides of the aerating and mixing 10 devices. In the upper part of the tank 1, which corresponds to the location of the gas space, opposite vertical partitions 4 are installed additional vertical transverse partitions 7, which are in contact with their lower parts plates 2 and 3 and tanks separating the gas space into sections. Outside the tank 1, a circulation pipe 8 is placed, which connects the zone of the lower suction inlet of the aerating and mixing device in the first section along the process with the area of the gas-liquid mixture leaving the aerating and mixing device in the last section. In the space between the wall of the tank 1 by the guide plate 2 at an angle to the horizon, additional - guide plates 0 9 are installed so that a part of the downward fluid flow flows into the adjacent section. The gas supplying convergers 10 of the aerating and mixing devices 5 are insulated from the atmosphere by sealed covers 11 and have windows 12 in their upper part for communication with the gas space of the sections. Pipelines 13 and 14 for supplying the gaseous substrate are installed in the gas supplying confuser 10 of the aerating device 5 in the first section.

The device works as follows. 5 Tank 1 is filled with culture liquid and seed culture is introduced. The aerating and mixing devices 5 are turned on and the gaseous substrate is supplied through the pipe Q wires 13 and 14. The culture fluid from the lower and upper zones of the apparatus is sucked in by aerating and mixing devices 5 and is ejected as a gas-liquid mixture into the middle zone located between the guide plates 2 and 3. Next, the gas-liquid mixture flows around the heat exchangers, partially de-aerating through the passages between the longitudinal edges of the guides.

0 plates 2 and 3 and the wall of the tank 1 flows back into the lower and upper zones to the suction nozzles of the aerating and mixing devices 5. At the same time part of the culture fluid is lowered between the wall of the tank

1 and the guide plate 2, along the additional guide plates 9, flow into the adjacent section, moving this way along the tank. The gas mixture located above the liquid level does not have the ability to freely flow along the apparatus, since the partitions 7 separating the gas space are immersed by their lower part in the liquid. The gas phase flows from section to section only with the culture liquid in the form of a gas-liquid mixture. During operation, each section recirculates both the culture liquid and the gas mixture while moving them along the device from section to section. Having reached .. the last section, exhausted gas

the mixture is removed from the apparatus, a part of the culture fluid is returned to the first section through the circulation pipe, and a part is taken for further processing.

Thus, due to the separation of the gas space of the tank by transverse vertical partitions, the installation of a circulation pipe, the supply of gas supplying confusors

0 aerating and mixing devices

sealed edges and windows for communication with the gas space of the sections achieve recirculation of the culture fluid and gas mixture

5 while moving them along the apparatus, which makes it possible to grow microorganisms on a gaseous substrate with the most complete utilization thereof.

J

ten

Claims (1)

1 DEVICE FOR GROWING MICROORGANISMS by ed. St. No. 539066, characterized in that, in order to ensure the possibility of growing microorganisms on a gaseous substrate, the apparatus is equipped with additional vertical transverse partitions separating the gas space of the container into sections, a circulation pipe connecting the zone of the lower suction pipe of the aeration and mixing device in the first. section c process, exit zone of the gas-liquid mixture from the aeration and mixing device in the last section, the gaseous substrate supply pipeline installed in the gas supply confuser of the aeration and mixing devices in the first section, while the gas supply confusers of the aeration and mixing devices are equipped with tight 'covers and have a window on the upper part for communication with the gas space of the sections