SU1454841A1 - Installation for growing microorganisms - Google Patents

Abstract

This invention relates to the microbiological industry. The purpose of the invention is to increase the specific capacity of the microbial growth plant. The installation includes a central column 1 and at least two peripheral columns 2 and 3 connected to it, one of which serves to circulate the gaseous substrate, and the other for oxygen-containing gas, the external circulation loop,

Description

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This invention relates to the microbiological industry.

The purpose of the invention is to increase the specific productivity of the installation.

FIG. 1 schematically shows the proposed installation, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The plant for growing microorganisms includes a central column 1 and at least two peripheral columns 2 and 3 connected to it, one of which serves to circulate the gaseous substrate and the other for oxygen-containing gas, the external circulation loop containing the stimulator 4 flow and heat exchanger 5, connected by pipelines 6 and 7 to the central and peripheral columns, and the recirculation circuit of the gaseous substrate (methane) containing the gas blower 8, the suction 9 and the discharge 10 gas ducts.

The central column 1 is divided by continuous partitions 11 into sections 12, in which mixers are installed, made for example in the form of drain funnels 13. The peripheral columns 2 and 3 are divided into sections 14 by perforated plates 15. Sections 12 of the central column 1 are communicated by means of pipelines 16 and 17 with upper and lower sections of the peripheral columns 2 and 3. The gas spaces of the sections 12 of the central column 1 are interconnected by pipelines 18 for venting gas through the pipe 19. The peripheral column 2 is equipped with a pipe 20 for gas supply razyogo substrate at a column 3patrubkom 21 for feed and oxygen-containing gas. Exhaust gaseous substrate (methane) is discharged through pipe 22, and air through pipe 23.

The central column 1 is provided with nozzles 24 and 25 for supplying process water and mineral nutrition. The removal of the finished product is carried out through the pipe 26.

The installation works as follows.

Methane is fed into the peripheral columns 2 and 3 separately through the nozzle 20, and oxygen-containing gas is fed through the nozzle 21 simultaneously with a liquid flow booster 4, through which the liquid from the lower part of the central column 1 passes through a heat exchanger 5, where it is cooled and is injected into the upper sieve tray 15 of columns 2 and 3. As a result, the installation organizes the circulation of the culture medium from the upper section of the peripheral columns through pipelines 16 into the area under the funnel 13, in which the mixing is divided of the saturated streams according to the Measure of their descent through the funnel 13 into the zone below it, from which the pipelines 17 deliver the liquid to the downstream sieve plates 15 of the peripheral columns 2 and 3. In the column with methane feed, the latter passes upwards through the plates 15 , the culture fluid is collected in the upper part of the column and through the pipe 22. either be selected for recycling, or the gas blower 8 is fed back to the lower part of the column for reuse, while this

the current is added to a fresh portion of methane.

In the air supplying column 3, the latter also passes from the bottom up, saturating the culture fluid with oxygen, collects in the upper part of the column and through the nozzle 25 is diverted to purification and to the atmosphere, since it does not contain methane. The gaseous biosynthesis products, a certain amount of air and methane as a result of their stripping in the sections of the central column are collected in the upper part of the column 1 and removed for purification. The process water and mineral feed are delivered to the upper part of the column 1 through pipes 2 24 and 25, the finished product is discharged through pipe 26 in the external circulation loop of the culture liquid. In the process of growing biomass, liquid flows in the peripheral columns 2 and 3 with methane and oxygen are separately saturated, providing the maximum driving force for mass transfer followed by mixing of the liquid flows in the sections of the central column 1, in which active biomass growth occurs, with cyclical saturation with methane and oxygen flows of the culture fluid and their subsequent disposal in the sections of column 1, which is completed within 5-7 seconds, is provided by the speed of circulation of the culture liquid Spins through the external circulation loop through the flow rate drive 4, selection of fluid volumes on the plate overflow plates 15 peripheral columns 2 and 3 and sections of the central column 1.

Separate supply of methane and oxygen (air) eliminates the creation of an explosive concentration of the gas mixture, since the peripheral columns contain methane and oxygen (air) separately, and in the central column these gases are only in dissolved form.

Thus, the formation of insulated sections in the centralI. The 4th kilonne and their consecutive communication through pipelines with sections of the peripheral columns ensures maximum saturation of the fluid flows separately with methane and oxygen, with subsequent displacement in the sections of the central column. This design solution allows methane and air to be used simultaneously as an activator for mixing the liquid on the plates and as a substrate without maintaining the explosion-proof ratio of the volumes of methane: air as 3: 1, while eliminating the conditions of the explosion.

The presence of an external circulation loop and the flow through it of fluid from the lower part of the central column to the peripheral columns in: - the upper sections on the sieve plates allows to thermostat the culture fluid and create a vertical circulation.

The combined effect of the above structural differences makes it possible to increase the specific capacity of the installation to 2.7 kg DIA / m-h.

Claims (1)

Invention Formula , "G 2о 25 JQ five g l A plant for growing microorganisms, comprising a central column and peripheral columns connected to it, divided in height into a series of sections and equipped with process connections, and an external circulation loop containing a flow booster and a heat exchanger connected to the central and peripheral columns by means of pipelines, that, in order to increase the specific productivity, the central column is divided in height by flat baffles into separate sections, each section being communicated with omoschi pipings vsh1e- and downstream sections of the peripheral columns, wherein at least one of the latter serves for circulating the oxygen-containing gas, and the other - for gaseous substrate. .y FIG. 2 fig.Z Editor N.Kishtulinets Compiled by G. Loshkareva TehredM.Khodanych Proofreader O.Kundrik Order 7410/29 Circulation. 500 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5        11 ||| Java ™ Yves I ™ And in BBV-1b cc Production and printing company, Uzhgorod, st. Project, 4 sixteen B b 17 Subscription