CN108300627A - A kind of semi liquid state fermentation system of self feed back - Google Patents
A kind of semi liquid state fermentation system of self feed back Download PDFInfo
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Abstract
The invention discloses a kind of semi liquid state fermentation systems of self feed back, belong to technical field of bioengineering.A kind of efficient semi liquid state fermentation system based on self feed back of the present invention, including computer, PLC controller, dissolved oxygen meter and self feed back anaerobic fermentation reactor；The self feed back anaerobic fermentation reactor of the present invention can reduce the pollution of miscellaneous bacteria during traditional zymotic, and automatization level is high, can reduce production cost.Semi liquid state fermentation is carried out using the self feed back anaerobic fermentation reactor of the present invention, 21 days alcoholic strengths of yellow wine fermentation can be made to improve 8%, amino nitrogen improves 12%, improves fermentation efficiency.
Description
Technical field
The present invention relates to a kind of semi liquid state fermentation systems of self feed back, belong to technical field of bioengineering.
Background technology
Semi liquid state fermentation body means the fermentation system between liquid and solid-state, often refers in particular to containing certain content solid
The fermentation system of object, solid content are generally less than the 50% of total volume, and this kind of system often exists due to the characteristic of its own
Mass transfer passes the problem of oxygen difficulty.Semi liquid state anaerobism or amphimicrobian system are especially semi-open to be in its fermentation process simultaneously
Into open system, this kind of system is often also required to certain oxygen supply to ensure that amphimicrobian is become reconciled due to Bacterial community complexity
The growth of oxygen animalcule.But this kind of system is often empirically mixed, is supplied oxygen at present, if opened rake in yellow rice wine, is answered
Close the back-mixing etc. in Vegetable Drink Fermented.With the continuous promotion of human cost and food nutrition demand for security, therefore compel to be essential
Want a kind of highly effective and safe semi liquid state anaerobic fermentation system that can not influence traditional handicraft.
Have there is a collection of novel system in the fields such as semi liquid state anaerobic fermentation system such as yellow rice wine, fermentation beverage made of fruits or vegetables at present,
Such as the fermentation system of patent CN 101805679B slot types, the technique for retaining original traditional zymotic system to greatest extent；But this
For class system still without solving the problems, such as that safety and self feed back adjust this, process efficiency and safety still have room for promotion.Separately
A kind of common system is pot type fermentation system, often with stirring systems such as frame paddles, but this kind of system often mass transfer effect
It is bad, pass oxygen control also not enough precisely.For precisely for oxygen transfer, in 101950165 B of patent CN, include by structure
Include the system of industrial personal computer, PLC, temperature sensor, intelligence instrument and live actuator, the automation control completed in yellow rice wine is opened
Rake, but this kind of system will often add plurality of devices, increase Operating Complexity, and this kind of control is generally required based on a variety of
Algorithm is simulated, and versatility has much room for improvement.The novel fermentation system that another kind emerges in large numbers in wine production, such as patent CN
1107719C blocks component, during the fermentation ceaselessly to cope with " the skin lid " of Grape Skin formation by taper
Minute bubbles are formed to complete to break " skin lid ", and completes mass transfer and passes oxygen；Although having no more additional equipment, mixing effect compared with
Difference is also only applicable to anaerobic fermentation system.
In conclusion for the anaerobism and amphimicrobian fermentation system of semi liquid state, there is an urgent need to one to pass oxygen control precisely,
Mass transfer effect is good, and smaller saturation type fermentation system is influenced on original fermentation system.
Invention content
The first purpose of the invention is to provide a kind of anaerobic fermentation reactors, including reactor body, diaphragm and gas
Distributor；In inside reactor, diaphragm is set to above gas distributor for the diaphragm and gas distributor coaxial arrangement；It is described
Diaphragm is in funnel-form, including interconnected bucket-shaped structure and tubular structure；The maximum radial length of bucket-shaped structure is anti-with fermentation
It answers device diameter equal, plays the role of baffle, fermentation reactor ontology is located to the region of funnel top face and lower section
Keep apart, to adapt to the back-mixing effect requirements of different fermentations system；The gas distributor is in annular shape, and gas is arranged on annulus
Hole is horizontally placed on the underface of diaphragm tubular structure；Gas distributor is by pipeline and is arranged in sidewall of reactor logical
Gas port connects；By-passing valve is arranged in sidewall areas where diaphragm；One channel of the by-passing valve be located at the bucket-shaped structure of funnel
The region of top face connects, another channel is connect with the region below the bucket-shaped structure top surface of funnel；
In one embodiment of the invention, it is arranged along fermentation reaction on the side wall of the anaerobic fermentation reactor ontology
The first blow vent and the second blow vent of device formed symmetrical；First blow vent is for accessing detection component；Second ventilation
Mouth is connect with gas distributor.
In one embodiment of the invention, on the side wall of the anaerobic fermentation reactor fermentation reactor ontology, closely
Sample tap is arranged in bottom section, and air bleeding valve is arranged in nearly top area.
In one embodiment of the invention, the anaerobic fermentation reactor fermentation reactor body interior setting difference
The cooling coil of both sides above and below diaphragm.
Second purpose is to provide a kind of efficient semi liquid state fermentation system based on self feed back, including computer, PLC control
Device, dissolved oxygen meter and self feed back anaerobic fermentation reactor；The dissolved oxygen meter both ends are separately connected computer and self feed back anaerobic fermentation
Reactor；The PLC controller respectively with computer, the by-passing valve of self feed back anaerobic fermentation reactor and annular gas distributor
Connection；Diaphragm is set in the self feed back anaerobic fermentation reactor, and the diaphragm will be in the self feed back anaerobic fermentation reactor
Part is upper and lower two regions；The two paths of by-passing valve are separately connected above-mentioned two region；The annular gas distributor is set
It is placed in immediately below diaphragm, is connect with blow vent.
In one embodiment of the invention, the efficient semi liquid state fermentation system further includes U-shaped differential manometer, flow
Meter, air compressor and nitrogen cylinder；The both ends of the U-shaped differential manometer respectively with above and below the diaphragm of self feed back anaerobic fermentation reactor
Both sides are connected to；The self feed back anaerobic fermentation reactor also passes sequentially through flowmeter and three-way switch valve and air compressor and nitrogen
Gas cylinder connects.
In one embodiment of the invention, the diaphragm is in funnel-form, including bucket-shaped structure and tubular structure；It is bucket-shaped
The maximum radial length of structure is equal with fermentation reactor diameter, and the annular gas distributor is horizontally placed at annular shape
The underface of diaphragm tubular structure；Stomata is set on the annulus of annular gas distributor, and by pipeline and is arranged in reactor
Blow vent connection on side wall.
In one embodiment of the invention, it is arranged along fermentation reactor axis pair on the side wall of fermentation reactor ontology
The first blow vent and the second blow vent claimed；The annular gas distributor is connect with one of blow vent.
In one embodiment of the invention, on the side wall of fermentation reactor ontology, sample tap is arranged in nearly bottom section,
Air bleeding valve is arranged in nearly top area.
In one embodiment of the invention, nearby by-passing valve is arranged in the bucket-shaped structure of diaphragm；The one of the by-passing valve
A channel is connect with the region above funnel, another channel is connect with the region below funnel.
In one embodiment of the invention, fermentation reactor body interior, which is also set up, is located at diaphragm both sides up and down
Cooling coil.
In one embodiment of the invention, the fermentation reactor ratio of height to diameter is 0.25~4.0.
In one embodiment of the invention, the fermentation reactor ratio of height to diameter is 0.6~2.5.
In one embodiment of the invention, the bucket-shaped structure height of the diaphragm and the ratio between the height of tubular structure are
0.5~2.0.
In one embodiment of the invention, the bucket-shaped structure height of the diaphragm and the ratio between the height of tubular structure are
0.7~1.5.
In one embodiment of the invention, the ratio between the height of the diaphragm and height for reactor are 0.05-0.5.
In one embodiment of the invention, the ratio between the height of the diaphragm and height for reactor are 0.1~0.3.
In one embodiment of the invention, the width of the diaphragm and reactor width are 0.1~0.9.
In one embodiment of the invention, the width of the diaphragm and reactor width are 0.2~0.6.
In one embodiment of the invention, critical pressure is>When 1.0 atmospheric pressure, by-passing valve is opened.
In one embodiment of the invention, the by-passing valve air inlet is located at funnel diaphragm, apart from diaphragm top
The distance in face accounts for the 0.07~0.17 of fermentation reactor whole height.
In one embodiment of the invention, the by-passing valve air inlet is located at funnel diaphragm, apart from diaphragm top
The distance in face accounts for the 0.09-0.12 of fermentation reactor whole height.
In one embodiment of the invention, the diameter d2 of the annular gas distributor and separator bottom diameter d1
Ratio (d2:D1) between 0.2-1.5.
In one embodiment of the invention, the diameter d2 of the annular gas distributor and separator bottom diameter d1
Ratio (d2:D1) between 0.5-1.2.
In one embodiment of the invention, the annular gas distributor be the oxygen supply intensity that provides of reactor between
Between 0.05-1.0vvm.
In one embodiment of the invention, the oxygen supply intensity is between 0.2-0.6vvm.
The present invention also provides the anaerobic fermentation reactors or the efficient semi liquid state fermentation system based on self feed back to exist
The application of fermentation arts.
Advantageous effect：(1) self feed back anaerobic fermentation reactor of the invention can reduce miscellaneous bacteria during traditional zymotic
Pollution, and automatization level is high, can reduce production cost.
(2) the self feed back anaerobic fermentation reactor of the application present invention carries out semi liquid state fermentation, can make yellow wine fermentation 21 days
Alcoholic strength improves 8%, and amino nitrogen improves 12%, improves fermentation efficiency.
Description of the drawings
Fig. 1 is semi liquid state self feed back anaerobic fermentation reactor；1, air bleeding valve；2, cooling coil；3, by-passing valve；4, diaphragm；
5, the first blow vent；6, the second blow vent；7, sample tap；8, annular gas distributor；
Fig. 2 is semi liquid state self feed back anaerobic fermentation reactor size marking figure；Wherein, H reacts for self feed back anaerobic fermentation
The height of device；H is the height to reactor bottom at the top of diaphragm；H1 is the height of the bucket-shaped structure of diaphragm；H2 is diaphragm tubular knot
The height of structure；
Fig. 3 is fermentation system cold work die schematic device；3, by-passing valve；7, sample tap；8, annular gas distributor；9,
Self feed back anaerobic fermentation reactor；10, computer；11, dissolved oxygen meter；12, U-shaped differential manometer；13, PLC controller；14, threeway is cut
Change valve；15, flowmeter；16, air compressor；17, nitrogen cylinder；
Fig. 4 is the relationship of total gas holdup and ratio of height to diameter；
Fig. 5 is the measurement result of incorporation time；
Fig. 6 is the comparison result of yellow rice wine pH prepared by different process；
Fig. 7 is the comparison result of yellow rice wine alcoholic strength prepared by different process；
Fig. 8 is the comparison result of yellow rice wine amino nitrogen prepared by different process.
Specific implementation mode
The design of 1 semi liquid state self feed back anaerobic fermentation reactor of embodiment
As shown in Figure 1, semi liquid state self feed back anaerobic fermentation system be fermentation reactor body interior along axis setting every
Film 4, and in the underface of diaphragm 4 setting annular gas distributor 8；The diaphragm 4 is in funnel-form, including bucket-shaped structure and tubular
Structure, the two are interconnected；The maximum radial length of bucket-shaped structure is equal with fermentation reactor diameter, and bucket-shaped structure plays baffle
Effect, the zone isolation that fermentation reactor ontology is located to funnel top face and lower section is opened, to adapt to different fermentations
The back-mixing effect requirements of system；The annular gas distributor 8 at annular shape, be horizontally placed on diaphragm tubular structure just under
Side；Stomata is set on the annulus of annular gas distributor 8, and is connect with the second blow vent 6 by pipeline；Fermentation reactor ontology
Side wall on setting along fermentation reactor formed symmetrical the first blow vent 5 and the second blow vent 6；First blow vent 5 can
Component is detected for accessing；On the side wall of fermentation reactor ontology, sample tap 7 is arranged in nearly bottom section, and nearly top area is set
Air bleeding valve 1 is set, by-passing valve 3 is arranged in the sidewall areas where diaphragm 4；One channel of the by-passing valve 3 with positioned at funnel it is bucket-shaped
The region of structure top face connects, another channel is connect with the region below the bucket-shaped structure top surface of funnel；Fermentation is anti-
Device body interior is answered to also set up the cooling coil 2 for being located at about 4 both sides of diaphragm.
The operation principle of the reactor is：By-passing valve is usually in closed state in fermentation process, when saturation type fermentation is anti-
It answers in device after input zymotic fluid, the raw material containing pericarp, rice skin can form lid at the top of reactor liquid level.It is sent out in microorganism
Under ferment effect, air is constantly accumulated between the liquid level and bucket-shaped structure underside wall below the bucket-shaped structure of funnel, forms cavity
Structure.The gas of chamber portion can not be discharged, and be filled without being fermented liquid, where cavity after the gas saturation in space, newly
The gas of generation will enter from the tubular structure of diaphragm lower part, emerge by neck and rise to zymotic fluid surface and form big gas
Bubble, these bubbles continuously stir wine with dregs lid, achieve the purpose that reduce broth temperature.When needing stronger agitation, bypass is opened
Valve makes bulk gas rush at upper space upwards from diaphragm tubular structure and stirs wine with dregs lid, and keep fermentation anti-under pressure
The liquid level of device diaphragm top face is answered to decline rapidly, the gas of diaphragm lower part gas storage space is fermented liquid and takes, which can
Reach compared to stirring action more soft for mechanical fermentation reactor, will not destroy microorganism in fermentation process from
So activity.When by-passing valve is closed, with fermentation process microorganism aerogenesis, the liquid level and bucket below the bucket-shaped structure of funnel again
Cavity structure is formed between shape structure underside wall, as the gas storage space is full of by gas again, by-passing valve is opened, by above-mentioned mistake
Journey repeats, and achievees the purpose that product temperature in continuous back-mixing and control tank.
The design of 2 semi liquid state self feed back anaerobic fermentation system of embodiment
As shown in figure 3, semi liquid state self feed back anaerobic fermentation system includes computer 10, and PLC controller 13, dissolved oxygen meter 11, U
Type differential manometer 12, self feed back anaerobic fermentation reactor 9, flowmeter 15, air compressor 16 and nitrogen cylinder 17；The self feed back is detested
9 structure of aerobe fermentation reactor is the same as embodiment 1；11 both ends of the dissolved oxygen meter are separately connected computer 10 and self feed back anaerobic fermentation is anti-
Answer device 9；The PLC controller 13 respectively with computer 10, the by-passing valve 3 and annular gas of self feed back anaerobic fermentation reactor 9
Distributor 8 connects；The both ends of U-shaped differential manometer 12 are connected to both sides above and below the diaphragm of self feed back anaerobic fermentation reactor 9 respectively；Institute
It states self feed back anaerobic fermentation reactor 9 and also passes sequentially through flowmeter 15 and three-way switch valve 14 and air compressor 16 and nitrogen cylinder
17 connections.
The operation principle of the semi liquid state self feed back anaerobic fermentation system is：Self feed back anaerobic fermentation reactor 9 is opened,
The upper and lower limit of DO concentration is set in PLC controller, the DO on dissolved oxygen meter pops one's head in feeds back to on-line checking by the DO in reactor
In dissolved oxygen meter 11, DO concentration is transferred to PLC controller 13 by dissolved oxygen meter 11, when the signal strength that dissolved oxygen meter 11 exports is less than setting
Good lower limit, at this time PLC controller send out instruction, air compressor 16 is opened by three-way switch valve 14, closing nitrogen cylinder 17,
By the output quantity of 15 stable regulation oxygen of flowmeter, gas transport to annular gas distributor 8 can uniformly improve zymotic fluid
Middle oxygen content；When for anaerobic fermentation, the anaerobic state of zymotic fluid can be controlled by being passed through nitrogen.When the letter that dissolved oxygen meter 11 transmits
Number intensity is higher than the upper limit set, and PLC controller sends out instruction at this time, passes through three-way switch valve 14,16 He of close compressor
Nitrogen cylinder 17, more accurately DO concentration in control system；At the same time, when entire zymotic fluid needs complete anaerobic condition, dissolved oxygen
The signal strength that instrument 11 exports is zero, and PLC controller sends out instruction, and by three-way switch valve 14, close compressor 16 opens nitrogen
Gas cylinder 17, flowmeter 15 adjust nitrogen output quantity, the distribution of annular gas distributor balanced gas.
Gas holdup of the U-shaped differential manometer designed for measuring gas.Population mean gas holdup is surveyed using volumetric method：
Population mean gas holdup ε is measured：It injects water into fermentation tank, by blow vent with constant gas velocity input air, leakage
Bucket diaphragm top liquid level constantly rises, and after liquid level reaches stationary value, closes air compressor machine, records liquid level maximum height at this time
H.By-passing valve is opened, liquid level drops to a certain stationary value, record data H0.ε can be then obtained, calculation formula is as follows：
ε=(H-H0)/H=1-H0/H
In formula：The total gas holdups (v/v) of ε-；H- highests liquid level (cm)；Liquid level (cm) after H0- declines；
3 semi liquid state anaerobic fermentation system cold work die of embodiment
Using cold work die, determines the entirety and critical component size of fermentation reactor, include the Gao Jing of fermentation reactor
Than (H：) and membrane shape D1.The specific measurement such as embodiment 2 of gas holdup.
In order to be better understood by the performance of fermentation reactor, zymotic fluid is replaced to carry out using the xanthans of different viscosities real
It tests.Detect back-mixing state of the xanthans in this fermentation reactor of different viscosities.The determination step of incorporation time is：It is anti-in fermentation
It answers and water is added in device, it is in colourless just that a certain amount of phenolphthalein reagent, which is added, and adjusts liquid in pH value to tank, is then added 5mL's
1mol·L-1Sodium hydroxide solution, solution shows red after mixing of ventilating, and adds the 1molL-1 hydrochloric acid of 5mL, and timing is opened
Begin, until solution is colourless, then it is assumed that be uniformly mixed, timing terminates.Incorporation time is measured in different ventilatory capacities, works as sky
When chamber is filled up by gas, i.e., lower layer's liquid level is concordant with funnel diaphragm bottommost, reaches back-mixing requirement, immediately back-mixing, each to test
It is repeated 3 times and is averaged.
It is 1 to have investigated fermentation reactor ratio of height to diameter respectively:1.5,1:1.8 and 1:Gas holdup when 2.0, as shown in Figure 4.Water
When substituting zymotic fluid, with the increase of ratio of height to diameter, gas holdup is gradually reduced total gas holdup, and 0.136 is down to from 0.182；Difference is viscous
It spends xanthans and substitutes zymotic fluid, ratio of height to diameter 1：1.5 to 1：When 1.8, gas holdup declines, and drops to 0.164- from 0.176 respectively
0.167；Ratio of height to diameter 1：1.8 to 1：When 2.0, gas holdup rises, and rises to 0.370-0.382 from 0.164-0.167 respectively.
It is 1 to have investigated fermentation reactor ratio of height to diameter respectively:1.5,1:1.8 and 1:Incorporation time when 2.0, as shown in Figure 5.
Gas velocity is bigger, and incorporation time is shorter, such as：Ratio of height to diameter is 1：When 1.8,10.98s is dropped to from 20.98；Ratio of height to diameter is bigger, mixing
Time is longer, such as：When gas velocity is 1L/min, 28.98s is risen to from 15.44.
At the same time, in order to improve the back-mixing effect of fermentation reactor, incorporation time is further measured, and compare two kinds
The funnel of form, lower edge are vertically and lower along horn mouth (modified).
Consider determination, under chill state, uses ratio of height to diameter for 1:When 1.8, acquired results are preferable, and separator bottom is flat
Straight shaped cylindrical can more preferably take big horn-like in bottom, and flared membrane can be such that incorporation time shortens.Ventilatory capacity is 1L/
When min, ratio of height to diameter 1：1.5, flared membrane shortens 11.10% than straight shaped cylindrical incorporation time；Ratio of height to diameter is 1：1.8
Flared membrane shortens 12.74% than straight shaped cylindrical；Ratio of height to diameter is 1：2.0 flared membrane shortens than straight shaped cylindrical
38.53%.
4 half-dry type yellow rice wine semi liquid state of embodiment is made
Half-dry type yellow rice wine semi liquid state brewing new zymotechnique be：(200% water logging is added in glutinous rice quality meter to glutinous rice-dipping
Stain one day)-steamed rice (100 DEG C, 10~20min)-cooling (being cooled to 20~30 DEG C)-nest (addition glutinous rice quality 0.4%
Yeast for brewing rice wine, three days)-fall tank (self feed back fermentation tank)-plus bent plus water (glutinous rice quality meter, 200% water, 3% wheat koji)-head rake
(from back-mixing, one day)-bis- rakes (from back-mixing, one day)-tri- rakes (from back-mixing, one day)-preceding ferment terminates (seven days)-and ferments afterwards
(low temperature, six days), uses saturation type fermentation reactor, without manually opening rake, realizes fermentation reactor self feed back mixing.From
The ratio of height to diameter of reaction type fermentation reactor is 1:1.5, diaphragm is in flat type funnel-form, d1：D1 is 0.5, h：H is 0.65, h1：h2
It is 1.0, the obstructed oxygen of pilot process.
Half-dry type yellow rice wine semi liquid state brewing traditional zymotic technique be：(200% water is added in glutinous rice quality meter to glutinous rice-dipping
Dipping one day)-steamed rice (100 DEG C, 10~20min)-cooling (being cooled to 20~30 DEG C)-nest (addition glutinous rice quality
0.4% yeast for brewing rice wine, three days)-fall tank (large cylinder)-plus bent plus water (glutinous rice quality meter, 200% water, 3% wheat koji, one day)-head rake
(manually open rake, one day)-bis- rake (manually open rake, one day)-tri- is harrowed after (manually open rake, one day)-preceding ferment terminates (seven days)-
Fermentation (low temperature, six days).It is manual operation that traditional yellow rice wine zymotechnique, which opens the rake stage, and Mechanization Level is low.
By new process compared with traditional handicraft, new process pH is relatively low, and fermentation is more controllable, and alcoholic strength and amino nitrogen are more
Height, it is specific as follows：Since the yellow wine fermentation stage sample adding song, adding this step of water, 21 days yellow rice wine obtained of traditional handicraft fermentation
Alcoholic strength 9.38g/L, amino peptide nitrogen 0.57g/L, pH 4.36；The yellow rice wine alcoholic strength 10.1g/L that new process ferments 21 days, amino
Peptide nitrogen 0.67g/L, pH3.44.
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not limited to the present invention, any to be familiar with this skill
The people of art can do various change and modification, therefore the protection model of the present invention without departing from the spirit and scope of the present invention
Enclosing be subject to what claims were defined.
Claims (10)
1. a kind of anaerobic fermentation reactor, which is characterized in that including reactor body, diaphragm and gas distributor；The diaphragm
It is coaxially disposed in inside reactor with gas distributor, diaphragm is set to above gas distributor；The diaphragm is in funnel-form, packet
Include interconnected bucket-shaped structure and tubular structure；The maximum radial length of bucket-shaped structure is equal with fermentation reactor diameter；Institute
It is in annular shape to state gas distributor, and stomata is arranged on annulus, is horizontally placed on the underface of diaphragm tubular structure；Gas distributor
It is connect with the blow vent being arranged in sidewall of reactor by pipeline；By-passing valve is arranged in the sidewall of reactor of diaphragm region；
The region that one channel of the by-passing valve is located at the bucket-shaped structure top face of funnel with reactor is connect, another channel and position
Region connection below the bucket-shaped structure top surface of funnel.
2. anaerobic fermentation reactor according to claim 1, which is characterized in that be arranged on the side wall of the reactor body
Along the first blow vent and the second blow vent of fermentation reactor formed symmetrical；First blow vent is for accessing the first device of detection
Part；Second blow vent is connect with gas distributor.
3. anaerobic fermentation reactor according to claim 2, which is characterized in that the anaerobic fermentation reactor fermentation reaction
On the side wall of device ontology, sample tap is arranged in nearly bottom section, and air bleeding valve is arranged in nearly top area；Setting point inside reactor body
Not Wei Yu diaphragm up and down both sides cooling coil.
4. Zymolysis Equipment or system containing any anaerobic fermentation reactor of claims 1 to 3.
5. a kind of efficient semi liquid state fermentation system based on self feed back, which is characterized in that including computer, PLC controller, dissolved oxygen
Instrument and any anaerobic fermentation reactor of claims 1 to 3；The dissolved oxygen meter both ends are separately connected computer and anaerobism hair
Ferment reactor；The PLC controller connects with computer, the by-passing valve of anaerobic fermentation reactor and annular gas distributor respectively
It connects.
6. the efficient semi liquid state fermentation system according to claim 5 based on self feed back, which is characterized in that described efficient half
Liquid state fermentation system further includes U-shaped differential manometer, flowmeter, air compressor and nitrogen cylinder；Distinguish at the both ends of the U-shaped differential manometer
It is connected to both sides above and below the diaphragm of anaerobic fermentation reactor；The anaerobic fermentation reactor also passes sequentially through flowmeter and threeway is cut
Valve is changed to connect with air compressor and nitrogen cylinder.
7. the efficient semi liquid state fermentation system according to claim 6 based on self feed back, which is characterized in that the anaerobism hair
The ratio of height to diameter of ferment reactor is 0.25~4.0；The ratio between the height of diaphragm and height for reactor are 0.05-0.5；The bucket-shaped knot of diaphragm
The ratio between structure height and the height of tubular structure are 0.5~2.0.
8. the efficient semi liquid state fermentation system according to claim 7 based on self feed back, which is characterized in that anaerobic reactor
Interior critical pressure>When 1.0 atmospheric pressure, by-passing valve is opened；Annular gas distributor is that the oxygen supply intensity that reactor provides is situated between
Between 0.05~1.0vvm.
9. the efficient semi liquid state fermentation system according to claim 8 based on self feed back, which is characterized in that the by-passing valve
Air inlet is located at funnel diaphragm, and the distance apart from diaphragm top surface accounts for the 0.07~0.17 of fermentation reactor whole height.
10. a kind of any efficient semi liquid state fermentation system the answering in fermentation arts based on self feed back of claim 6~9
With.
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Application publication date: 20180720 |