CN212293561U - Fermentation device with novel mechanical defoaming mechanism - Google Patents

Abstract

The utility model relates to a fermentation with novel mechanical defoaming mechanism device, including fermentation cylinder, defoaming mechanism, installation fermentation cylinder blast pipe and fermentation cylinder intake pipe on the fermentation cylinder, the one end of fermentation cylinder intake pipe extends to the bottom in the fermentation cylinder, defoaming mechanism includes storage tank, foam overflow pipe, total intake pipe, filter. The utility model discloses a setting of defoaming mechanism, the residual pressure of make full use of fermentation cylinder tail gas and the pressure differential of external atmospheric pressure, promote the foam and carry out the machinery defoaming through the filter, make the foam broken, need not extra consumption power, through controlling first valve and second valve, change the gas circuit, to letting in gas in the storage tank intake pipe, make the pressure increase in the storage tank, can make the inside filterable liquid of storage tank flow back to the fermentation tank through the foam overflow pipe, it is extravagant to reduce, can also flush the filter membrane simultaneously here, prevent the filter membrane jam of filter.

Description

Fermentation device with novel mechanical defoaming mechanism

Technical Field

The utility model relates to a fermentation cylinder technical field, concretely relates to fermentation with novel mechanical defoaming mechanism device.

Background

In the microbial fermentation process, a large amount of gas can be generated in the fermentation liquor due to the introduction of sterile air and the respiration of the microorganisms, and the gas can form foams due to surface tension and float on the surface of the liquid to form the foams due to the existence of colloidal substances such as protein in the fermentation liquor. Too much foam prevents gas exchange, which affects respiratory metabolism of the producing bacteria. In addition, if the foam is not well controlled, a large amount of liquid can escape, waste and pollution are caused, the risk of bacterial contamination is increased, and the subsequent extraction is difficult. The currently more common defoaming methods are chemical defoaming and mechanical defoaming. The chemical defoaming cost is high, and simultaneously, the gas-liquid transfer of fermentation liquor can be influenced. Mechanical defoaming is generally implemented by installing mechanical defoaming slurry on the upper part of a stirring shaft or installing a rotating disc, a rotating rotor and the like at an air outlet on the upper part of a fermentation tank, and foams are crushed by shearing acting force, but the efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a fermentation device with a novel mechanical defoaming mechanism.

In order to achieve the above object, the utility model adopts the following technical scheme:

a fermentation device with a novel mechanical defoaming mechanism comprises a fermentation tank and a defoaming mechanism, wherein a fermentation tank exhaust pipe and a fermentation tank intake pipe are installed on the fermentation tank, one end of the fermentation tank intake pipe extends to the bottom in the fermentation tank, the defoaming mechanism comprises a storage tank, a foam overflow pipe, a main intake pipe and a filter, the storage tank is positioned on one side outside the tank body, a storage tank intake pipe and a storage tank exhaust pipe are installed on the storage tank, the storage tank intake pipe is connected with the main intake pipe and the fermentation tank intake pipe through a first valve so as to convey gas into the storage tank intake pipe or the fermentation tank intake pipe through the main intake pipe, the storage tank exhaust pipe is connected with a fermentation tank exhaust pipe and a main exhaust pipe through a second valve so as to discharge the gas in the storage tank exhaust pipe and the fermentation tank exhaust pipe from the main exhaust pipe, the other end of the foam overflow pipe extends into the fermentation tank and is communicated with the foam filter, so that the fermentation liquid in the fermentation tank is defoamed by the foam filter and flows into the storage tank from the overflow pipe.

Preferably, the filter includes filtration membrane, disc, is the filter membrane mounting bracket of hemisphere grid structure, the fixed vacuole formation of disc and filter membrane mounting bracket, filtration membrane installs on the surface of filter membrane mounting bracket, filtration membrane is high temperature resistant glass fiber milipore filter.

In any of the above aspects, preferably, the first valve and the second valve are both three-way valves.

In any of the above schemes, preferably, the outer wall of the fermentation tank is sleeved with a jacket for adjusting the temperature of the fermentation liquid in the fermentation tank.

In any of the above embodiments, it is preferable that at least three baffles are fixed to the inner wall of the fermentation tank.

In any of the above schemes, preferably, the top center part of the fermentation tank is provided with a stirring shaft, one end of the stirring shaft is connected with a motor, the motor is arranged on the fermentation tank, the other end of the stirring shaft extends into the fermentation tank, and the stirring shaft in the fermentation tank is provided with a third-stage stirring paddle.

In any of the above schemes, preferably, the top of the fermentation tank is provided with a feed inlet, and the bottom of the fermentation tank is provided with a discharge outlet and a sampling port.

In any of the above schemes, preferably, the outer wall of the jacket is provided with a plurality of first expansion ports communicated with the inside of the fermentation tank, the top of the fermentation tank is provided with a plurality of second expansion ports, the top of the fermentation tank is provided with a tank pressure detection port and a foam detection port, the tank pressure detection port is connected with a pressure monitor, and the foam detection port is connected with a foam detection probe.

In any of the above schemes, preferably, the main exhaust pipe is sleeved with a condensation component to cool the gas exhausted from the main exhaust pipe.

In any of the above schemes, preferably, the central lines of the main exhaust pipe and the fermentation tank exhaust pipe are in the same straight line, so that the liquid condensed in the main exhaust pipe can conveniently flow back to the fermentation tank through the fermentation tank exhaust pipe.

Compared with the prior art, the utility model provides a pair of fermentation device with novel mechanical defoaming mechanism has following beneficial effect:

1. through the arrangement of the defoaming mechanism, the residual pressure of the tail gas of the fermentation tank and the pressure difference of the external atmospheric pressure are fully utilized to push the foam to be mechanically defoamed through the filter, so that the foam is crushed, no additional power consumption is needed, the gas path is changed by controlling the first valve and the second valve, gas is introduced into the gas inlet pipe of the storage tank, the pressure in the storage tank is increased, the liquid filtered in the storage tank can flow back to the fermentation tank through the foam overflow pipe, the waste is reduced, meanwhile, the filter membrane can be flushed backwards, and the filter membrane of the filter is prevented from being blocked;

2. through setting up baffle and tertiary stirring rake in the fermentation cylinder, stirring paddle leaf's rotation stirs the zymotic fluid in the fermentation cylinder, and the baffle plays the effect of blockking to the rotation of zymotic fluid, makes the zymotic fluid part take place the reversal, helps the more even to the zymotic fluid stirring.

Drawings

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of a fermentation device with a novel mechanical defoaming mechanism provided by the present invention;

FIG. 2 is a view showing the distribution of the second expansion port, the tank pressure detecting port and the foam detecting port on the tank cover in the embodiment shown in FIG. 1;

FIG. 3 is a schematic view of the filter of the embodiment of FIG. 1;

FIG. 4 is a schematic view of the filter shown in FIG. 3 without the filter membrane installed.

The figures are labeled as follows: 1. a fermentation tank; 2. a baffle plate; 3. a jacket; 4. a first expansion port; 5. a stirring paddle; 6. a stirring shaft; 7. a filter; 8. a storage tank; 9. a condensing assembly; 10. a foam detection port; 11. a motor; 12. a feed inlet; 13. a second expansion port; 14. a tank pressure detection port; 15. a disc; 16. a filtration membrane; 17. mounting a filter membrane; a1, a second valve; a2, a first valve; b1, a main air inlet pipe; b2, a fermentation tank air inlet pipe; b3, a storage tank air inlet pipe; b4, a foam overflow pipe; b5, a fermentation tank exhaust pipe; b6, a storage tank exhaust pipe; b7, main exhaust pipe.

Detailed Description

In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.

As shown in FIGS. 1-4, an embodiment of a fermentation apparatus with a novel mechanical defoaming mechanism provided by the present invention comprises a fermentation tank 1 and a defoaming mechanism, wherein the fermentation tank 1 comprises a tank body and a tank cover, the tank body and the tank cover are detachably fixed by screws, a rubber gasket is arranged between the tank body and the tank body to perform a sealing function, the tank cover is detachably connected with the tank body to facilitate disassembly and cleaning, a fermentation tank 1 exhaust pipe and a fermentation tank 1 intake pipe are mounted on the fermentation tank 1, one end of the fermentation tank 1 intake pipe extends to the bottom inside the fermentation tank 1, the defoaming mechanism comprises a storage tank 8, a foam overflow pipe B4, a total intake pipe B1 and a filter 7, the storage tank 8 is located at one side outside the tank body, a storage tank 8 intake pipe and a storage tank 8 exhaust pipe are mounted on the storage tank 8, the storage tank 8 intake pipe is connected with the total intake pipe B1 and the fermentation tank 1, so as to through total intake pipe B1 to the interior conveying gas of storage tank 8 intake pipe or fermentation cylinder 1 intake pipe, first valve A2 is connected with the other end of fermentation cylinder 1 intake pipe, storage tank 8 exhaust pipe passes through second valve A1 and connects fermentation cylinder 1 calandria and total exhaust pipe B7 to make the gas in storage tank 8 exhaust pipe and the fermentation cylinder 1 exhaust pipe discharge from total exhaust pipe B7, the one end of foam overflow pipe B4 extends to the bottom in the storage tank 8, the other end of foam overflow pipe B4 extends to in the fermentation cylinder 1 and communicates foam filter 7, so that the zymotic fluid in the fermentation cylinder 1 passes through foam filter 7 defoaming and flows into in the storage tank 8 from the overflow pipe.

The air inlet pipe of the storage tank 8, the air inlet pipe of the fermentation tank 1 and the total air inlet pipe B1 are connected through a first valve A2, and sterile air is controlled by a first valve A2 to directly enter the fermentation tank 1 or to pass through the storage tank 8 and then enter the fermentation tank 1 through a foam overflow pipe B4; make full use of the residual pressure of 1 tail gas in fermentation cylinder and the pressure differential of external atmospheric pressure, promote the foam and carry out the mechanical defoaming through filter 7, make the foam broken, need not extra consumption power, 8 blast pipes in storage tank, 1 blast pipe in fermentation tank passes through the second three way valve connection, control tail gas through 1 blast pipe direct waste discharge in fermentation tank or through 8 blast pipe waste discharge in storage tank through second valve A1, through controlling first valve A2 and second valve A1, change the gas circuit, let in gas in 8 inlet tubes to storage tank, make the pressure increase in the storage tank 8, can make the inside filterable liquid of storage tank 8 pass through foam overflow pipe B4 backflow fermentation tank 1, it is extravagant to reduce, can also the back flush filter membrane here simultaneously, prevent filter 7's filter membrane jam.

The filter 7 comprises a filtering membrane 16, a disc 15 and a filtering membrane mounting rack 17 which is of a hemispherical grid structure, the disc and the filtering membrane mounting rack are fixed to form a cavity, the filtering membrane is mounted on the outer surface of the filtering membrane mounting rack, and the filtering membrane is a high-temperature-resistant glass fiber ultrafiltration membrane. The foam enters the foam overflow pipe B4 through the filtration membrane and the grid holes on the filtration membrane mounting rack, so that the filtration and defoaming functions are realized. The bubbles are broken when passing through the filter 7, and small molecular substances such as gas and water pass through the bubbles, so that the aim of eliminating the foam is fulfilled. The filter 7 has downward filtering holes, so that partial particles can be reduced to block the filtering holes.

The first valve A2 and the second valve A1 are three-way valves.

The outer wall of the fermentation tank 1 is sleeved with a jacket 3 for adjusting the temperature of fermentation liquor in the fermentation tank 1.

At least three baffles 2 are fixed on the inner wall of the fermentation tank 1, and in the rotating process of the stirring shaft 6, the baffles 2 play a role in blocking the rotation of the fermentation liquor, so that the fermentation liquor is partially reversed, and the fermentation liquor is stirred more uniformly.

The top center part installation (mixing) shaft 6 of fermentation cylinder 1, motor 11 is connected to the one end of (mixing) shaft 6, and motor 11 installs on fermentation cylinder 1, the other end of (mixing) shaft 6 extends to the inside of fermentation cylinder 1, install tertiary stirring rake 5 on the (mixing) shaft 6 in the fermentation cylinder 1.

The top of fermentation cylinder 1 sets up feed inlet 12, the bottom of fermentation cylinder 1 sets up discharge gate and sample connection.

The fermentation tank comprises a jacket 3, and is characterized in that a plurality of first expansion ports 4 communicated with the interior of the fermentation tank 1 are arranged on the outer wall of the jacket 3, a plurality of second expansion ports 13 are installed at the top of the fermentation tank 1, a tank pressure detection port 14 and a foam detection port 10 are arranged at the top of the fermentation tank 1, a pressure detection probe is connected to the tank pressure detection port 14, the tank pressure is monitored in real time, the foam detection probe is connected to the foam detection port 10, the fermentation tank 1 controls the temperature in the fermentation tank through a jacket 33, the first expansion ports 4 are formed in the side wall of the fermentation tank 1, one of the expansion ports is used for being connected with a temperature detection device and used for monitoring the temperature of the fermentation liquid in real time, the two expansion ports are respectively used for being connected with a dissolved oxygen detection probe and a PH detection probe, and the second expansion ports 13 are used. Jacket inner cavity sets up import and export on the cover, lets in the cooling of circulating comdenstion water realization to the fermentation cylinder in to the cover, to the interior heating to the fermentation cylinder of realizing through circulation hot steam or hot water of cover, pressure detection probe, foam detection probe, temperature-detecting device, oxygen detection probe and PH detection probe and the structure of cover and the effect of playing are prior art, are known to technical staff in the field to be not the technical improvement point of this application, consequently no longer give unnecessary details here.

The cover has condensation subassembly 9 on total vent pipe B7 to cooling off the exhaust gas in total vent pipe B7, retrieving the zymotic fluid that contains in the combustion gas, avoiding extravagant, condensation subassembly 9 includes condenser coil, safety cover, the safety cover is connected with the blast pipe, the condenser pipe is located the safety cover, and condenser coil's both ends all extend to the outside of safety cover, and condenser coil is intraductal through the circulating condensation water, cools off the waste gas in the blast pipe, and the water vapor condensation liquefaction flows back to fermentation cylinder 1 in.

The central lines of the main exhaust pipe B7 and the fermentation tank 1 exhaust pipe are on the same straight line, so that the liquid condensed in the main exhaust pipe B7 conveniently flows back to the fermentation tank 1 through the fermentation tank 1 exhaust pipe.

The working principle of the embodiment is as follows: the air inlet pipe of the fermentation tank 1 is communicated with the total air inlet pipe B1 by controlling a first valve A2, the total air inlet pipe B1 is filled with sterile air and enters fermentation liquor through the air inlet pipe of the fermentation tank 1, the exhaust pipe of the fermentation tank 1 is communicated with the total exhaust pipe B7 by controlling a second valve A1, tail gas directly enters the total exhaust pipe B7 through the exhaust pipe of the fermentation tank 1 and is discharged, when a large amount of foam is generated, a foam detection probe can transmit an electric signal to start mechanical defoaming, in the defoaming process, the tail gas enters the total exhaust pipe B7 through the exhaust pipe of a storage tank 8 by controlling a second valve A1, the foam on the upper layer of the fermentation liquor is extruded to pass through a filter 7 (similar to suction filtration) by virtue of the tank pressure of the fermentation tank 1, the foam is broken when passing through the filtration pores of a filtration membrane on the filter 7, small molecular substances such as gas and, reducible partial granule blocks up the filtration pore, when the defoaming finishes, through changing second valve A1, make tail gas pass through fermentation tank 1 blast pipe and get into total vent pipe B7, change first valve A2 simultaneously, make aseptic air pass through in the 8 intake pipes of storage tank get into storage tank 8, 8 pressure in the storage tank rises, the partial liquid that gets into storage tank 8 among the defoaming process blows back fermentation tank 1 through foam overflow pipe B4, reduce the zymotic fluid loss, still can play the purpose that washes the filtration pore and prevent the jam simultaneously. After the liquid in the tank 8 flows into the fermentation tank 1, the first valve A2 is changed to make the sterile air enter the fermentation tank 1 through the air inlet pipe of the fermentation tank 1.

It will be understood by those skilled in the art that any combination of the elements of the present invention, including the summary and detailed description of the invention provided in the foregoing description and illustrated in the accompanying drawings, is not to be considered limiting in scope and in order to make the description more concise, and not to describe every element of the combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a fermentation device with novel mechanical defoaming mechanism which characterized in that: the defoaming device comprises a fermentation tank and a defoaming mechanism, wherein a fermentation tank exhaust pipe and a fermentation tank intake pipe are arranged on the fermentation tank, one end of the fermentation tank intake pipe extends to the bottom in the fermentation tank, the defoaming mechanism comprises a storage tank, a foam overflow pipe, a total intake pipe and a filter, the storage tank is positioned on one side outside the tank body, the storage tank intake pipe and the storage tank exhaust pipe are arranged on the storage tank, the storage tank intake pipe is connected with the total intake pipe and the fermentation tank intake pipe through a first valve so as to convey gas into the storage tank intake pipe or the fermentation tank intake pipe through the total intake pipe, the storage tank exhaust pipe is connected with a fermentation tank exhaust pipe and the total exhaust pipe through a second valve so as to discharge gas in the storage tank exhaust pipe and the fermentation tank exhaust pipe from the total exhaust pipe, one end of the foam overflow pipe extends to the, so that the fermentation liquid in the fermentation tank is defoamed by the foam filter and flows into the storage tank from the overflow pipe.

2. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the filter includes filtration membrane, disc, is the filter membrane mounting bracket of hemisphere grid structure, the fixed vacuole formation of disc and filter membrane mounting bracket, filtration membrane installs on the surface of filter membrane mounting bracket, filtration membrane is high temperature resistant glass fiber milipore filter.

3. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the first valve and the second valve are both three-way valves.

4. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the outer wall of the fermentation tank is sleeved with a jacket to adjust the temperature of fermentation liquor in the fermentation tank.

5. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: at least three baffles are fixed on the inner wall of the fermentation tank.

6. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the top center part installation (mixing) shaft of fermentation cylinder, the motor is connected to the one end of (mixing) shaft, and the motor is installed on the fermentation cylinder, the other end of (mixing) shaft extends to the inside of fermentation cylinder, install tertiary stirring thick liquid on the (mixing) shaft in the fermentation cylinder.

7. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the top of fermentation cylinder sets up the feed inlet, the bottom of fermentation cylinder sets up discharge gate and sample connection.

8. The fermentation device with the novel mechanical defoaming mechanism of claim 4, wherein: the fermentation tank is characterized in that a plurality of first expansion ports communicated with the inside of the fermentation tank are formed in the outer wall of the clamping sleeve, a plurality of second expansion ports are installed at the top of the fermentation tank, a tank pressure detection port and a foam detection port are formed in the top of the fermentation tank, a pressure monitor is connected to the tank pressure detection port, and a foam detection probe is connected to the foam detection port.

9. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the condensation component is sleeved on the main exhaust pipe to cool the gas exhausted from the main exhaust pipe.

10. The fermentation device with the novel mechanical defoaming mechanism of claim 1, wherein: the central lines of the main exhaust pipe and the fermentation tank exhaust pipe are on the same straight line, so that liquid condensed in the main exhaust pipe conveniently flows back into the fermentation tank through the fermentation tank exhaust pipe.

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