CN205999379U - A kind of multiple spot air sparger and the fermentation tank applying it - Google Patents
A kind of multiple spot air sparger and the fermentation tank applying it Download PDFInfo
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- CN205999379U CN205999379U CN201621029312.6U CN201621029312U CN205999379U CN 205999379 U CN205999379 U CN 205999379U CN 201621029312 U CN201621029312 U CN 201621029312U CN 205999379 U CN205999379 U CN 205999379U
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- jet pipe
- multiple spot
- air sparger
- thalline
- pipe
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- 238000000855 fermentation Methods 0.000 title claims abstract description 44
- 230000004151 fermentation Effects 0.000 title claims abstract description 44
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 abstract description 53
- 239000007788 liquid Substances 0.000 abstract description 51
- 239000007921 spray Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 239000006260 foam Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 23
- 239000001301 oxygen Substances 0.000 description 23
- 229910052760 oxygen Inorganic materials 0.000 description 23
- 239000000463 material Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010564 aerobic fermentation Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 244000039328 opportunistic pathogen Species 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- 239000004100 Oxytetracycline Substances 0.000 description 1
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004103 aerobic respiration Effects 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- IWVCMVBTMGNXQD-PXOLEDIWSA-N oxytetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3[C@H](O)[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-PXOLEDIWSA-N 0.000 description 1
- 229960000625 oxytetracycline Drugs 0.000 description 1
- 235000019366 oxytetracycline Nutrition 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- IWVCMVBTMGNXQD-UHFFFAOYSA-N terramycin dehydrate Natural products C1=CC=C2C(O)(C)C3C(O)C4C(N(C)C)C(O)=C(C(N)=O)C(=O)C4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-UHFFFAOYSA-N 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model discloses a kind of multiple spot air sparger, it at least includes the first jet pipe and the second jet pipe, and described second nozzle inlet end is placed on the port of export of described first jet pipe, has gap between described first jet pipe and described second jet pipe.The invention also discloses a kind of fermentation tank of application multiple spot air sparger described above, described fermentation tank includes tank body, stirrer paddle and air supply pipe;Described air supply pipe is located at the bottom of described tank body, and described stirrer paddle is located at the inside of tank body, and is rotatably connected with described tank body by rotary shaft;The entrance point of the first jet pipe of described multiple spot distributor is connected with described air supply pipe.In the presence of thalline feed liquid thalline is passed through air sparger and the agitating device of tank body by multiple spot air sparger of the present utility model, form unobstructed circulating path.In the presence of high pressure draught, thalline feed liquid is quickly sucked and sprays, deflation effect is played to the foam expanding in thalline feed liquid simultaneously, fermentation tank coefficient can be effectively improved.
Description
Technical field
This utility model is related to a kind of fermentation tank technical field, specifically, is related to one kind and fermented in biology aerobic
Air distribution technique used in journey, it can effectively improve the dissolved oxygen speed of oxygen and thalline feed liquid thalline, makes fermentation technique index
The fermentation tank with multiple spot air sparger being greatly improved with yield.
Background technology
At present in biology aerobic fermenting and producing, such as aminoacid (glutamic acid, lysine ...), organic acid (citric acid, clothing
Health acid ...), antibiotic (penicillin, oxytetracycline ...) enzyme preparation product, sugar alcohols product etc., be all belonging to liquid deep layer
Aerobic fermentation produces.So-called " aerobic production " is exactly the opportunistic pathogen body feed liquid being distributed evenly in aseptic compressed air in fermentation tank
In, enable thalline to obtain sufficient aerobic respiration (dissolved oxygen) so as to normal growth, metabolism, with the biology required for reaching
Product.Kind is different, and the aerobic fermentation cycle is also different, but no matter which kind of aerobic fermentation, all it be unable to do without air from start to finish.Cause
This, how air to be uniformly distributed in fermentation liquid, makes opportunistic pathogen body feed liquid thalline fully the oxygen of in the air be absorbed (dissolving
Oxygen) it is the key factor that impact is given stable high yields irrespective of drought or water logging.
Traditional air sparger it is simply that being passed through a straight tube in fermenter base, have " " font, have " " font,
There is " η " font, the air sparger of these models is all by some supply, then pass through multi gear blade on shaft by sky
Oxygen in gas is uniformly distributed in fermentation liquid, so that gas-liquid is mixed, and reaches the purpose of dissolved oxygen in fermentation liquid, thus can be supplied to
Thalline breathing growth, the purpose of metabolite.Because this technology is one-point type supply, therefore air can not be uniformly distributed, especially
It is major diameter fermentation tank, there is stirring dead angle, make oxygen and thalline feed liquid thalline fully can not merge absorption, cause dissolved oxygen deficiency shadow
Ring fermentation index.
In sum, air sparger of the prior art exist in structure clearly disadvantageous, only can pass through one
Individual point supplies in fermentation tank, relends and helps stirrer paddle to mix the oxygen of in the air with fermentation liquid further it is impossible to by air
In oxygen be evenly distributed in the fermentation liquid of fermentation tank, particularly major diameter fermentation tank, there is stirring dead angle, make oxygen and thalline
Feed liquid thalline can not fully merge, and causes dissolved oxygen not enough impact fermentation index.
Utility model content
The purpose of this utility model is the fermentation tank providing a kind of multiple spot air sparger and applying it, in order to solve
, there is the defect at stirring dead angle in the oxygen of existing fermentation tank and feed liquid undercompounding.
For achieving the above object, a kind of multiple spot of this utility model air sparger, described multiple spot air sparger at least wraps
Include the first jet pipe and the second jet pipe, described second nozzle inlet end is placed on the port of export of described first jet pipe, described first spray
Between pipe and described second jet pipe, there is gap.
Described multiple spot air sparger also includes the 3rd jet pipe, and described 3rd nozzle inlet end is placed on described second jet pipe
The port of export, between described 3rd jet pipe and described second jet pipe, there is gap.
Described multiple spot air sparger also includes the 4th jet pipe, and the entrance point of described 4th jet pipe is placed on described 3rd spray
The port of export of pipe, has gap between described 4th jet pipe and described 3rd jet pipe.
Described first jet pipe, the second jet pipe, the 3rd jet pipe and the 4th jet pipe flare shape.
It is fixedly connected by connecting plate between described first jet pipe and described second jet pipe.
The entrance point of described first jet pipe is provided with flange.
This utility model also provide a kind of application multiple spot air sparger described above fermentation tank it is characterised in that
Described fermentation tank includes tank body, stirrer paddle and air supply pipe;
Described air supply pipe is located at the bottom of described tank body, and described stirrer paddle is located at the inside of tank body, and by rotation
Axle is rotatably connected with described tank body;
The entrance point of the first jet pipe of described multiple spot distributor is connected with described air supply pipe.
The setting quantity of described multiple spot distributor at least 2.
Described air supply pipe is straight tube.
This utility model has the advantage that:
Thalline feed liquid thalline can be passed through air sparger and tank body by multiple spot air sparger of the present utility model
In the presence of agitating device, form unobstructed circulating path, and good reactive state.In the presence of high pressure draught, will
Thalline feed liquid quickly sucks and sprays, and plays deflation effect to the foam expanding in thalline feed liquid simultaneously, can effectively improve fermentation
Tank coefficient;Multiple spot air sparger of the present utility model has powerful suction effect and jet power, makes thalline feed liquid
Reciprocation cycle, the thalline rapidly and uniformly solution absorption in the oxygen of in the air and thalline feed liquid improves dissolved oxygen speed, significantly
Improve fermentation index and be effectively increased tinning coefficient, increase substantially yield.
Brief description
Fig. 1 is the structural representation of multiple spot air sparger of the present utility model.
Fig. 2 is the front view of multiple spot air sparger of the present utility model.
Fig. 3 is the structural representation of the fermentation tank with multiple spot air sparger of the present utility model.
Specific embodiment
Following examples are used for this utility model is described, but are not limited to scope of the present utility model.
As shown in Figure 1 to Figure 3, this utility model provide a kind of multiple spot air sparger, this multiple spot air sparger 10 to
Include the first jet pipe 1 and the second jet pipe 2 less, the second jet pipe 2 entrance point is placed on the port of export of the first jet pipe 1, the first jet pipe 1 He
Between second jet pipe 2, there is gap.The entrance point of the first jet pipe 1, is the inlet port of air (oxygenous), when pressure-air passes through
After the entrance point of the first jet pipe 1 enters the first jet pipe 1, high pressure draught enters the second jet pipe 2 from the first jet pipe 1, due to the second spray
The diameter with diameter greater than the first jet pipe 1 of pipe 2, the entrance point of the second jet pipe 2 is placed on the port of export of the first jet pipe 1, and second
The port of export of the entrance point of jet pipe 2 and the first jet pipe 1 has gap, forms negative pressuren zone in the entrance of the second jet pipe 2, forms ring
The material sucking port of shape, the thalline feed liquid positioned at the second jet pipe 2 inlet ambient can suck the second jet pipe 2, thalline by annular material sucking port
Feed liquid is mixed with air in the second jet pipe.
Likewise, multiple spot air sparger 10 can also include the 3rd jet pipe 3, the 3rd jet pipe 3 entrance point is placed on second
The port of export of jet pipe 2, the diameter with diameter greater than the second jet pipe 2 of the 3rd jet pipe 3, have between the 3rd jet pipe 3 and the second jet pipe 2
Gap, forms annular material sucking port, when high pressure draught and thalline feed liquid pass through three jet pipes 3, forms negative pressuren zone in this gap location,
The thalline feed liquid of the 3rd jet pipe 3 entrance can be sucked the 3rd jet pipe 3, further air and thalline feed liquid be mixed.
Further, multiple spot air sparger 10 also includes the 4th jet pipe 4, and the entrance point of the 4th jet pipe 4 is placed on the 3rd
The port of export of jet pipe 3, the diameter with diameter greater than the 3rd jet pipe 3 of the 4th jet pipe 4, have between the 4th jet pipe 4 and the 3rd jet pipe 3
Gap, forms annular material sucking port.Preferably, between the first jet pipe 1 and the second jet pipe 2, between the second jet pipe 2 and the 3rd jet pipe 3,
All it is fixedly connected by connecting plate 6 between 3rd jet pipe 3 and the 4th jet pipe 4.Certainly also can one between different jet pipes and connecting plate
Body formed.
In an embodiment of the present utility model, multiple spot distributor 10 of the present utility model is by the first jet pipe 1, the second jet pipe
2nd, the 3rd jet pipe 3 and the 4th jet pipe 4 are mutually socketed to form, and wherein, the diameter of the first jet pipe 1 is less than the diameter of the second jet pipe 2,
The diameter of the second jet pipe 2 is less than the diameter of the 3rd jet pipe 3, and the diameter of the 3rd jet pipe 3 is less than the diameter of the 4th jet pipe 4, four sprays
Pipe is collectively forming a multiple spot distributor 10 from fine to coarse with horn-like spray chamber, and the entrance point of the first jet pipe 1 is air inlet,
The port of export of the 4th jet pipe 4 is the spout of multiple spot air sparger 10, and the junction formation three between each jet pipe is of different sizes
Annular material sucking port.Wherein, pass through welded plate between the tube wall of each jet pipe to be connected, the entrance point of the first jet pipe can with air supply pipe even
Connect.
As disposable embodiment, the quantity of the jet pipe of multiple spot air sparger 10 of the present utility model can be five
Individual, six even more many, as long as meeting in thalline feed liquid and the well-mixed purpose of air.
Preferably, the first jet pipe 1, the second jet pipe 2, the 3rd jet pipe 3 and the 4th jet pipe 4 flare shape, jet pipe is set to
Horn shape, is conducive to air-flow to carry the further diffusion of thalline feed liquid and mix, is sufficiently mixed air and thalline feed liquid.First
The entrance point of jet pipe 1 is provided with flange 5, and the first jet pipe 1 can be connected with air supply pipe 8 grade by flange 5.
This utility model also provide a kind of apply above-mentioned multiple spot air sparger 10 fermentation tank, fermentation tank include tank body 7,
Stirrer paddle 9 and air supply pipe 81;Air supply pipe 81 is located at the bottom of tank body 7, and stirrer paddle 9 is located at the inside of tank body 7, and leads to
Cross rotary shaft 82 to be rotatably connected with tank body 7;The entrance point of the first jet pipe 1 of multiple spot distributor 10 is connected with air supply pipe 81.
Wherein, rotary shaft 82 is located at the center of tank body 7, and stirrer paddle 9 is fixedly connected with rotary shaft 82, and stirrer paddle 9
Positioned at the top of multiple spot distributor 10, after thalline feed liquid and air are mixed by multiple spot distributor 10, by the spray of multiple spot distributor
Mouth sprays, and the thalline feed liquid of ejection is further stirred by stirrer paddle 9, and air is further mixed with thalline feed liquid
Close, such that it is able to air and thalline feed liquid are carried out full and uniform mixing, improve the oxygen meltage of thalline feed liquid.
It is preferred that air supply pipe 81 is straight tube, one end of air supply pipe 81 is stretched out the outside of tank body 7, is connected with feeder;For
The other end of trachea 81 stretches into the bottom middle position of tank body 7, arranges multiple many on the air supply pipe 81 stretching into tank base
Point air sparger 10, multiple spot air sparger 10 is fixedly connected with air supply pipe 81 by flange 5.
It is preferred that the setting quantity of multiple spot distributor 10 at least 2, multiple spot distributor 10 uniformly divides on air supply pipe 81
Cloth, the spout of multiple spot air sparger 10 can straight up it is also possible to towards tank body 7 sidewall direction, can also be towards tank
The bottom of body 7, the oxygen of thalline feed liquid and in the air, towards different directions, can sufficiently be filled by the spout of multiple spot distributor 10
Divide mixing.Some supply is changed into multiple spot supply by multiple spot air sparger 10, both tank body 7 bottom gas-feeding pipe 81 is introduced fermentation tank
The interior long straight tube forming a multiple spot supply, installs multiple air spargers 10 on long straight tube air supply pipe.This utility model can
With the size according to tank body 7, setting extend into the length of tank base, and the quantity of setting multiple spot air sparger 10.With
When it is also contemplated that the direction of the spout of multiple spot air sparger 10 so that the air mixing full and uniform with thalline feed liquid.
The fermentation tank with multiple spot air sparger of the present utility model, is according to aerodynamic and venturi principle phase
Design, multiple spot air sparger 10 forms from fine to coarse horn-like many by the jet pipe socket of multiple different-diameters
Point air sparger.When the air with certain pressure passes through air sparger, thalline feed liquid will be between each jet pipe
Annular material sucking port enters jet pipe, in the presence of high pressure air power, quickly through the jet pipe of mutual socket, in jet pipe and spray
At mouthful, air and thalline feed liquid are sufficiently mixed by multiple spot air sparger 10, are ejected into each corner of tank body 7, further
Ground is stirred by stirrer paddle 9, is finally reached air and is uniformly distributed in thalline feed liquid, and dissolved oxygen is sufficient, does not stay dead angle, lifting
The purpose of fermentation index.
The specific operation principle of fermentation tank of the present utility model is:
Fermentation tank of the present utility model, when using, first, is filled appropriate feed liquid in fermentation tank and inoculation is appropriate
Thalline;Open agitating device and multiple spot air sparger, when feeder is supplied to tank interior by air supply pipe simultaneously
Gas, the multiple spot air sparger being arranged on air supply pipe is started working, when high pressure draught enters and leads to from the import of the first jet pipe
Multiple rings when crossing the first jet pipe, the second jet pipe, the 3rd jet pipe and four jet pipes, between the jet pipe of multiple spot air sparger
The multiple negative pressuren zone of surrounding's formation of shape material sucking port, is squeezed in the thalline feed liquid around multiple spot air sparger, in a large number by each ring
Shape material sucking port is inhaled into rapidly in distributor jet pipe, carries out thalline feed liquid and air in the presence of high pressure draught in jet pipe
Mixing.Finally, due to fermentation tank is furnished with agitating device in itself, multiple spot air sparger has powerful suction effect and injection
Ability, can make thalline feed liquid reciprocation cycle in the presence of agitating device and multiple spot air sparger, by the oxygen of in the air with
Thalline in thalline feed liquid rapidly and uniformly solution absorption, improves dissolved oxygen speed, has prevented stirring dead angle and dissolved oxygen is uneven
Insufficient the drawbacks of, fermentation technique index is greatly improved.Meanwhile, in the presence of high pressure draught, multiple spot air sparger
Thalline feed liquid is quickly sucked and sprays, deflation effect is played to the foam expanding in thalline feed liquid simultaneously, and then improve fermentation
Tank coefficient.
Thalline feed liquid thalline can be passed through air sparger and tank body by multiple spot air sparger of the present utility model
In the presence of agitating device, form unobstructed circulating path, and good reactive state.In the presence of high pressure draught, will
Thalline feed liquid quickly sucks and sprays, and plays deflation effect to the foam expanding in thalline feed liquid simultaneously, can effectively improve fermentation
Tank coefficient;Multiple spot air sparger of the present utility model has powerful suction effect and jet power, makes thalline feed liquid
Reciprocation cycle, the thalline rapidly and uniformly solution absorption in the oxygen of in the air and thalline feed liquid improves dissolved oxygen speed, significantly
Improve fermentation index and be effectively increased tinning coefficient, increase substantially yield.
Although, above with general explanation and specific embodiment, detailed description is made to this utility model,
On the basis of this utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belonging to this utility model will
Seek the scope of protection.
Claims (9)
1. a kind of multiple spot air sparger is it is characterised in that described multiple spot air sparger at least includes the first jet pipe and second
Jet pipe, described second nozzle inlet end is placed on the port of export of described first jet pipe, described first jet pipe and described second jet pipe
Between there is gap.
2. multiple spot air sparger according to claim 1 it is characterised in that
Described multiple spot air sparger also includes the 3rd jet pipe, and described 3rd nozzle inlet end is placed on going out of described second jet pipe
Mouth end, has gap between described 3rd jet pipe and described second jet pipe.
3. multiple spot air sparger according to claim 2 is it is characterised in that described multiple spot air sparger also includes
Four jet pipes, the entrance point of described 4th jet pipe is placed on the port of export of described 3rd jet pipe, described 4th jet pipe and the described 3rd
There is between jet pipe gap.
4. multiple spot air sparger according to claim 3 it is characterised in that
Described first jet pipe, the second jet pipe, the 3rd jet pipe and the 4th jet pipe flare shape.
5. multiple spot air sparger according to claim 1 it is characterised in that
It is fixedly connected by connecting plate between described first jet pipe and described second jet pipe.
6. multiple spot air sparger according to claim 1 it is characterised in that
The entrance point of described first jet pipe is provided with flange.
7. a kind of application claim 1-6 any one of multiple spot air sparger fermentation tank it is characterised in that
Described fermentation tank includes tank body, stirrer paddle and air supply pipe;
Described air supply pipe be located at described tank body bottom, described stirrer paddle be located at tank body inside, and by rotary shaft with
Described tank body is rotatably connected;
The entrance point of the first jet pipe of described multiple spot distributor is connected with described air supply pipe.
8. fermentation tank according to claim 7 it is characterised in that
The setting quantity of described multiple spot distributor at least 2.
9. fermentation tank according to claim 7 it is characterised in that
Described air supply pipe is straight tube.
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CN201621029312.6U CN205999379U (en) | 2016-08-31 | 2016-08-31 | A kind of multiple spot air sparger and the fermentation tank applying it |
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CN201621029312.6U CN205999379U (en) | 2016-08-31 | 2016-08-31 | A kind of multiple spot air sparger and the fermentation tank applying it |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106190786A (en) * | 2016-08-31 | 2016-12-07 | 吕建军 | A kind of multiple spot air sparger and apply its fermentation tank |
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2016
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106190786A (en) * | 2016-08-31 | 2016-12-07 | 吕建军 | A kind of multiple spot air sparger and apply its fermentation tank |
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Effective date of registration: 20170616 Address after: 101100, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park light mechanical and electrical integration industry base, Jia Chuang Road, No. 5, building five, layer 611 Patentee after: Beijing Boshuo Deheng science and Technology Development Co Ltd Address before: Luyuan District in Jilin province Changchun 130026 Liaoyang Street No. 7 Patentee before: Lv Jianjun |