CN203269930U - Fermentation liquid defoaming and stirring device and fermentation tank with same - Google Patents
Fermentation liquid defoaming and stirring device and fermentation tank with same Download PDFInfo
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- CN203269930U CN203269930U CN 201320057266 CN201320057266U CN203269930U CN 203269930 U CN203269930 U CN 203269930U CN 201320057266 CN201320057266 CN 201320057266 CN 201320057266 U CN201320057266 U CN 201320057266U CN 203269930 U CN203269930 U CN 203269930U
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- froth breaking
- defoaming
- fermentor tank
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Abstract
The utility model relates to a defoaming device in the fields of fermentation and bioengineering, and particularly relates to a fermentation liquid defoaming and stirring device and a fermentation tank with the same. The fermentation liquid defoaming and stirring device comprises a defoaming blade arranged on a stirring shaft, wherein the defoaming blade is composed of two same butterfly wing shaped blades and a blade shaft seat for connecting the two butterfly wing shaped blades; the extended surface of each butterfly wing shaped blade is an arc surface, and the eccentric part of the arc surface is lack of a semicircle; and the blade shaft seat is provided with two symmetric blade mounting curves rotating around the blade shaft seat for 180 DEG, the length of each blade mounting curve is equal to the perimeter of the eccentric semicircle of the extended surface of each butterfly wing shaped blade, and the two butterfly wing shaped blades are pressed to form a curve which is bilaterally fixed on the blade shaft seat along the mounting curves on the blade shaft seat. The fermentation liquid defoaming and stirring device provided by the utility model is capable of effectively eliminating fermentation liquid foams and good in defoaming effect, and has a stirring function besides a defoaming function.
Description
Technical field
The utility model relates to the defoaming device of fermentation and bioengineering field, specifically a kind of fermented liquid froth breaking whipping appts and the fermentor tank that this device is housed.
Background technology
In fermentation and biotechnology, most widely used equipment is fermentor tank or bio-reactor, fermented liquid can produce a large amount of bubbles due to the chemical property of substrate or the reason of microorganism foaming bacterium when fermentation in tank, form foam, as untimely processing, foam can rise rapidly, overflow outside tank, pollute or the fermented liquid loss, this phenomenon is especially serious in aerobic fermentation process.General de-foaming process adopts the method for chemistry or physics.The former adds low-carbon alcohol, mineral oil, polar organic compounds or silicone resin class chemical defoamer to reduce the surface tension of fermented liquid in fermented liquid, thereby suppress or the minimizing formation of foam, but because biological respinse has strict requirement to bacterial classification or product, often can not or not wish to add chemical defoamer.The latter's physical method is with the broken bubble of mechanical collision principle, commonly used is rake froth breaking stirring rake, structure as shown in Figure 1, rake froth breaking stirring rake is arranged on stir shaft 6 tops fermentations liquid level A places, by the broken bubble of rake pin B, but the fermentation liquid level poor effect that this mode is many to foam and the foam development is fast.
The utility model content
Technical problem to be solved in the utility model is: overcome the shortcoming of prior art, the fermentor tank that proposes a kind of fermented liquid froth breaking whipping appts and this device is housed can effectively be eliminated the fermented liquid foam.
The technical scheme that the utility model solves above technical problem is:
A kind of fermented liquid froth breaking whipping appts comprises the froth breaking blade that is arranged on stir shaft, and the froth breaking blade is comprised of with the blade axle bed that is connected two butterfly aliform blade sheets two identical butterfly aliform blade sheets; The developed surface of butterfly aliform blade sheet is a cambered surface, and the cambered surface eccentric part has lacked a semicircle; Have on the blade axle bed two symmetries around blade axle bed 180
oThe blade installation curve, the length of blade installation curve equals the semicircle girth of the eccentric semicircle of butterfly aliform blade sheet developed surface, two butterfly aliform blade sheets are pressed into a curved surface and are fixed on the blade axle bed along the installation curve on the blade axle bed is symmetrical.
A kind of fermentor tank, fermentor tank are equipped with above-mentioned fermented liquid froth breaking whipping appts.
The utility model adopts the helical stir blade of similar butterfly aliform wide at the top and narrow at the bottom, and it is arranged on common stir shaft.The froth breaking stirring system adopts independent power device, be arranged on the top of fermentor tank, butterfly aliform agitating vane can move up and down at stir shaft, generally, the lower end of froth breaking blade approximately 1/3 place is the fermentation liquid level, and namely lower end 1/3 part of blade is immersed under the fermentation liquid level.Under standard state, the froth breaking stirring system is in holding state, does not rotate.When formation of foam and Quick Extended, when needing to control, just start the froth breaking stirring system.Utilize butterfly aliform blade liquid to be stirred the principle that produces vortex to rotation center when subsurface part fast rotational, the liquid level that bubbles is stirred, foam moves to the vortex core rapidly under centripetal suction, and sink with vortex, the foam that part does not reach sinking is under the shock of blade top spiral camber, surface tension goes to pot, and foam can't continue to form or expansion, thereby reaches the purpose of froth breaking.
Froth breaking process of the present utility model is as follows:
⑴ before froth breaking stirring system starts, as shown in Figure 3, before the froth breaking stirring system starts, formation of foam is surperficial at fermented liquid, and constantly expansion is risen;
⑵ froth breaking stirring system initial start stage forms vortex at the mixing center liquid level during rotation of froth breaking blade as shown in Figure 4, and foam is subjected to the backspin gravitational attraction, collects to the vortex core;
⑶ in froth breaking stirring system when work,, the foam that converges in the vortex core was to lose surface tension under powerful vortex suction destroyed or suck below liquid level as shown in Figure 5;
⑷ the froth breaking stirring system work later stage as shown in Figure 6, the shock of part does not reach that the foam of sinking rotated blade top spiral camber, surface tension goes to pot, foam can't continue to form or expansion.
Because there is its singularity in the fermented liquid formation of foam, the utility model is artificial solves the undesirable problem of fermented liquid froth breaking and conducts in-depth research, result has been made the profile that defoaming effect depends on the froth breaking blade clear, find that the helical stir blade has certain effect to the fermented liquid froth breaking, but the defoaming effect of different spiral-shaped froth breaking blade is far from each other; So, studied the defoaming effect of difform helical stir blade in great detail, found that the helical stir blade defoaming effect of similar butterfly aliform wide at the top and narrow at the bottom is better; The utility model is further studied, and found that the froth breaking blade of the utility model concrete shape can complete the froth breaking process of above ⑴-⑷, thereby has completed the utility model.
The technical scheme that the utility model further limits is:
Aforesaid fermented liquid froth breaking whipping appts, froth breaking blade lower end 1/3 part is immersed under the liquid level that needs froth breaking.
aforesaid fermentor tank, butterfly aliform paddle components design variable and mutual mathematical relation thereof are: the fermentor tank diameter is P, butterfly aliform blade sheet rotating diameter D=P/8～P/6, blade axle bed diameter H=D/8, the high Q=D/3 of described butterfly aliform blade sheet, butterfly aliform blade sheet developed surface small end chord length r=1/20* (D-H), semicircle (being that blade is around the axle bed circle) radius m=1.2*Q/3.14159, butterfly aliform blade sheet developed surface string arc length L=2*m+11*r, butterfly aliform blade sheet developed surface string camber h=L/2.43, butterfly aliform blade sheet developed surface string arc radius R=(L*L/ (8*h))+(h/2).
Aforesaid fermentor tank, froth breaking blade are positioned at fermentor tank central authorities, a side or are symmetrically distributed in fermentor tank both sides.
The rotating diameter of the utility model froth breaking blade is affected by two factors: 1. the diameter of fermentor tank; 2. rotating speed of agitator.The rotating diameter D of general froth breaking blade is 1/8 to 1/6 of fermentor tank diameter P.In 0.5-5 rice scope, the froth breaking rotating speed of agitator is at 50-400rpm when the fermentor tank diameter, motor power (output) demand 0.2-5.5kw.Not solid-state fermentation liquid or production batch indirect fermentation liquid are changed large fermentor tank, adopt frequency control motor, in order to can control better defoaming effect and energy-conservation.
The utility model fermented liquid froth breaking whipping appts can effectively be imitated and be eliminated the fermented liquid foam, and defoaming effect is good; Except above-mentioned their defoaming function is arranged, also has agitating function.As long as regulate blade in the subsurface degree of depth, just can play stirring action.Generally, blade 1/2 or more under liquid level, mixing effect is just fairly obvious, certainly, blade is more in subsurface part, stirs diameter larger, the power that needs is also larger.
Description of drawings
Fig. 1 is the use state graph of existing rake froth breaking stirring rake.
Fig. 2 is the installation site figure of the utility model fermented liquid froth breaking whipping appts.
Fig. 3 is the state graph before the utility model fermented liquid froth breaking whipping appts starts.
Fig. 4 is the state graph of the utility model fermented liquid froth breaking whipping appts initial start stage.
Fig. 5 is the utility model fermented liquid froth breaking whipping appts work state graph in mid-term.
Fig. 6 is the state graph in whipping appts work later stage of the utility model fermented liquid froth breaking.
Fig. 7 is the structural representation of the utility model fermented liquid froth breaking whipping appts.
Fig. 8 is the structure vertical view of the utility model stir shaft and froth breaking blade.
Fig. 9 is the structural front view of the utility model stir shaft and froth breaking blade.
Figure 10 is the utility model butterfly aliform blade sheet developed surface structural representation.
Figure 11 is the utility model blade installation curve structural representation.
Figure 12 is the structural representation of the utility model embodiment 2.
Figure 13 is the structural representation of the utility model embodiment 3.
Figure 14 is the structural representation of the utility model embodiment 4.
Figure 15 is the blade degree of depth and power demand graph of a relation.
Embodiment
The fermented liquid froth breaking whipping appts of the present embodiment, structure as shown in Figure 7, the power of froth breaking stirring system is provided by the electric motor 1 at top, electric motor 1 is passed to stir shaft 6 by speed reduction unit 2 with power, stir shaft 6 drives 8 rotations of froth breaking blades.Frame 3 plays supporting electric motivation and fixing stir shaft.Bearing assembly 4 plays the location and reduces rotational resistance.Boss 5 on fermentor tank or bio-reactor is the erecting stages that support the froth breaking stirring system.On stir shaft, keyway 7 can prevent that the froth breaking blade from skidding, and 9 froth breaking blade upper-lower positions of blade lock screw are regulated positioning function.
The structure vertical view of stir shaft and froth breaking blade as shown in Figure 8, front view as shown in Figure 9, the froth breaking blade is comprised of with the blade axle bed 12 of being connected with being connected two butterfly aliform blade sheets two identical butterfly aliform blade sheets 10; The developed surface of butterfly aliform blade sheet is a cambered surface, and as shown in figure 10, the cambered surface eccentric part has lacked a semicircle 13; Have on blade axle bed 12 two symmetries around blade axle bed 180
oBlade installation curve 12A, as shown in figure 11, in figure, solid line is positive, dotted line is reverse side, the length of blade installation curve equals the semicircle girth of butterfly aliform blade sheet 10 or the eccentric semicircle of 11 developed surfaces, and two butterfly aliform blade sheets are pressed into a curved surface and are fixed on the blade axle bed along the installation curve on the blade axle bed is symmetrical.
Butterfly aliform agitating vane can move up and down at stir shaft, and generally, the lower end of froth breaking blade 8 approximately 1/3 place is the fermentation liquid level, and namely lower end 1/3 part of froth breaking blade 8 is immersed under fermentation liquid level A, as shown in Figure 2.
The utility model fermented liquid froth breaking whipping appts also has agitating function except above-mentioned their defoaming function is arranged.As long as regulate blade in the subsurface degree of depth, just can play stirring action.Generally, blade 1/2 or more under liquid level, mixing effect is just fairly obvious, certainly, blade is more in subsurface part, stirs diameter larger, the power that needs is also larger.Be arranged on diameter as the froth breaking stirring system of the reactor blade rotating diameter 650mm of 5000mm as example take one, variable-frequency motor power is 5.5kw, rotating speed 100rpm, agitating vane enters the degree of depth of liquid level from 100mm, each 50mm that deepens, until blade all enters under liquid level, its electric current is increased to 8.8A from 6.8A, as shown in figure 15.
The present embodiment is a kind of fermentor tank of the embodiment of being equipped with 1 fermented liquid froth breaking whipping appts, 2 meters of the present embodiment fermentor tank diameters, and the manufacturing of its froth breaking agitating vane is pressed table 1 parameter and is carried out.
The design variable (mm of unit) of table 1 blade rotating diameter 300mm
| The blade rotating | D | 300 | |
| Blade axle bed diameter | H | 37.50 | |
| Blade is high | Q | 100.00 | |
| Blade developed surface small end chord length | r | 13.13 | |
| Blade is around the axle bed radius of circle | m | 38.20 | |
| Blade developed surface string arc length | L | 220.77 | |
| Blade developed surface string camber | h | 90.85 | |
| Blade developed surface string arc radius | R | 112.48 |
The present embodiment fermented liquid froth breaking whipping appts is arranged on 400mm place, inclined to one side fermentor tank center, structure as shown in figure 12, blade bottom 50mm immerses the fermentation liquid level, joins the 3kw variable-frequency motor.Observations such as table 2:
Table 2 300mm froth breaking rotating speed of agitator and power and defoaming effect are observed
| Mixing speed | Electric current | Power | Phenomenon is described |
| rpm | A | Kw | ? |
| 23 | 1.9 | 1.03 | Whirlpool does not appear in liquid level, and foam still |
| 51 | 2.7 | 1.46 | Whirlpool appears in liquid level, and foam moves to the whirlpool center |
| 84 | 3.0 | 1.62 | Lather collapse, blade splash little spray |
| 92 | 3.6 | 1.95 | The spray radius that blade splashes reaches 0.7 |
| 100 | 4.2 | 2.27 | The spray that blade splashes covers whole liquid levels |
Above result shows, mixing speed gets final product froth breaking within 90rpm, first wife 3kw motor is more bigger, 2.2kw gets final product.
The present embodiment is a kind of fermentor tank of the embodiment of being equipped with 1 fermented liquid froth breaking whipping appts, 5 meters of the present embodiment fermentor tank diameters, and the manufacturing of its froth breaking agitating vane is pressed table 3 parameter and is carried out.
The design variable (mm of unit) of table 3 blade rotating diameter 600mm
| The blade rotating diameter | D | 600.00 |
| Blade axle bed diameter | H | 75.00 |
| Blade is high | Q | 200.00 |
| Blade developed surface small end chord length | r | 26.25 |
| Blade is around the axle bed radius of circle | m | 76.39 |
| Blade developed surface string arc length | L | 441.54 |
| Blade developed surface string camber | h | 181.70 |
| Blade developed surface string arc radius | R | 224.97 |
The present embodiment fermented liquid froth breaking whipping appts is arranged on the fermentor tank center, structure as shown in figure 13, blade bottom 70mm immerses the fermentation liquid level, joins 7.5kw Excitation Adjustment speed motor.Observations such as table 4:
Table 4 600mm froth breaking rotating speed of agitator and power and defoaming effect are observed
| Mixing speed | Electric current | Power | Phenomenon is described |
| rpm | A | Kw | ? |
| 60 | 9.2 | 4.98 | Whirlpool appears in liquid level, moves to the whirlpool center |
| 110 | 9.2 | 4.98 | Foam begins to disappear, and the spray radius that blade splashes reaches 1 meter |
| 160 | 10.0 | 5.41 | Most of lather collapse, the spray radius that blade splashes reaches 1.5 meters |
| 203 | 10.2 | 5.52 | The spray that foam completely dissolve, blade splash covers most of liquid level |
| 248 | 10.2 | 5.52 | The spray that blade splashes covers whole liquid levels |
Above result shows, but mixing speed at 200rpm left and right froth breaking, excitation electromotor adjustable speed, but not energy-conservation, first wife 7.5kw motor is more bigger, 5.5kw gets final product.
The present embodiment is a kind of bio-reactor of the embodiment of being equipped with 1 fermented liquid froth breaking whipping appts, and the present embodiment bio-reactor is 4.4x14 rice square type structure, and the manufacturing of its froth breaking agitating vane is pressed table 5 parameter and carried out.
The design variable (mm of unit) of table 5 blade rotating diameter 650mm
| The blade rotating diameter | D | 650.00 |
| Blade axle bed diameter | H | 81.25 |
| Blade is high | Q | 216.67 |
| Blade developed surface small end chord length | r | 28.44 |
| Blade is around the axle bed radius of circle | m | 82.76 |
| Blade developed surface string arc length | L | 478.33 |
| Blade developed surface string camber | h | 196.85 |
| Blade developed surface string arc radius | R | 243.72 |
The bioreactor configurations two cover fermented liquid froth breaking whipping apptss system of the present embodiment, structure is arranged on respectively 4.5 and 9.5 meters of reactor longitudinal cenlerline as shown in figure 14, both between 5 meters of distances.Blade bottom 70mm immerses the fermentation liquid level, joins 5.5kw Excitation Adjustment speed motor.Observations such as table 6:
Table 6 650mm froth breaking rotating speed of agitator and power and defoaming effect are observed
| Mixing speed | Electric current | Power | Phenomenon is described |
| rpm | A | Kw | ? |
| 95 | 6.8 | 3.22 | Whirlpool does not appear in liquid level, and foam still |
| 135 | 7.0 | 3.31 | Little whirlpool appears in liquid level, and foam moves to the whirlpool center, approximately 1.2 meters of the spray radiuses that blade splashes |
| 210 | 7.2 | 3.41 | Most of lather collapse, the spray radius that blade splashes reaches 1.5 meters |
| 249 | 7.4 | 3.5 | The spray that foam completely dissolve, blade splash covers most of liquid level |
| 283 | 7.5 | 3.55 | The spray that blade splashes covers whole liquid levels |
Above result shows, these macro-organism reactor configurations two cover froth breaking stirring systems, and mixing speed gets final product froth breaking about 250rpm, can adopt the mounting means of many cover froth breaking stirring systems coupling on rectangular reactor.
The field that the utility model is used is biotechnology not only, also respectively the fields such as using environment-friendly engineering, pharmaceutical engineering, food engineering, Agricultural engineering under the situation that chemical defoamer is restricted.
Device of the present utility model also can play the function of stirring except their defoaming function.Mounting means is also flexible and changeable.For those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also carry out some improvement and modification to the utility model, the technical scheme that the equal replacement of all employings or equivalent transformation form all falls in the protection domain of the utility model claim.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. a fermented liquid froth breaking whipping appts, comprise the froth breaking blade that is arranged on stir shaft, it is characterized in that: described froth breaking blade is comprised of with the blade axle bed (12) that is connected two butterfly aliform blade sheets two identical butterfly aliform blade sheets (10 with are connected); The developed surface of described butterfly aliform blade sheet is a cambered surface, and the cambered surface eccentric part has lacked a semicircle (13); Have on described blade axle bed (12) two symmetries around blade axle bed 180
oBlade installation curve (12A), the length of described blade installation curve equals the semicircle girth of the eccentric semicircle of described butterfly aliform blade sheet (10 or 11) developed surface, and described two butterfly aliform blade sheets are pressed into a curved surface and are fixed on the blade axle bed along the installation curve on described blade axle bed is symmetrical.
2. fermented liquid froth breaking whipping appts as claimed in claim 1 is characterized in that: described froth breaking blade lower end 1/3 part is immersed under the liquid level that needs froth breaking.
3. fermentor tank, described fermentor tank is equipped with the described fermented liquid froth breaking of claim 1 or 2 whipping appts.
4. fermentor tank as claimed in claim 3 is characterized in that: described froth breaking blade is positioned at fermentor tank central authorities, a side or is symmetrically distributed in fermentor tank both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057266 CN203269930U (en) | 2013-01-31 | 2013-01-31 | Fermentation liquid defoaming and stirring device and fermentation tank with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057266 CN203269930U (en) | 2013-01-31 | 2013-01-31 | Fermentation liquid defoaming and stirring device and fermentation tank with same |
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| Publication Number | Publication Date |
|---|---|
| CN203269930U true CN203269930U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320057266 Expired - Fee Related CN203269930U (en) | 2013-01-31 | 2013-01-31 | Fermentation liquid defoaming and stirring device and fermentation tank with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103109A (en) * | 2013-01-31 | 2013-05-15 | 王晓军 | Fermentation liquor de-foaming and stirring device and fermentation tank provided with fermentation liquor de-foaming and stirring device |
| CN106732273A (en) * | 2016-12-26 | 2017-05-31 | 江苏新宏大集团有限公司 | A kind of half water law phosphoric acid special agitating apparatus |
-
2013
- 2013-01-31 CN CN 201320057266 patent/CN203269930U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103109A (en) * | 2013-01-31 | 2013-05-15 | 王晓军 | Fermentation liquor de-foaming and stirring device and fermentation tank provided with fermentation liquor de-foaming and stirring device |
| CN106732273A (en) * | 2016-12-26 | 2017-05-31 | 江苏新宏大集团有限公司 | A kind of half water law phosphoric acid special agitating apparatus |
| CN106732273B (en) * | 2016-12-26 | 2024-05-24 | 江苏新宏大集团有限公司 | Special agitating unit of semi-water process phosphoric acid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200131 |