CN208389887U - A kind of agitating device of large-scale fermentation cylinder - Google Patents
A kind of agitating device of large-scale fermentation cylinder Download PDFInfo
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- CN208389887U CN208389887U CN201820833135.XU CN201820833135U CN208389887U CN 208389887 U CN208389887 U CN 208389887U CN 201820833135 U CN201820833135 U CN 201820833135U CN 208389887 U CN208389887 U CN 208389887U
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- agitating shaft
- pushing
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- rack
- ratchet
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Abstract
A kind of agitating device of large-scale fermentation cylinder drives the scheme of agitating shaft using hydraulic drive ratchet, ratchet.Agitating shaft top has rigidly fixed stirring blade, and lower part secures a ratchet, has pawl to withstand on the gear ring of ratchet, and pawl pin joint can be swung on pushing-pulling-rack on pushing-pulling-rack, and pushing-pulling-rack pin joint can be swung on agitating shaft round agitating shaft；The piston of hydraulic cylinder also pin joint on pushing-pulling-rack, piston is pushed pawl advance or retreated by pushing frame to be resetted, the piston of hydraulic cylinder often stretches primary, pawl just pushes ratchet to turn over certain angle, the agitating shaft being rigidly fixed on ratchet just also turns over certain angle, since the lever of pushing-pulling-rack acts on, the rotation that the thrust of hydraulic cylinder is exaggerated several times to push agitating shaft.The benefit of the utility model is: agitating shaft is driven much simpler hydraulic drive with relative gear rings to substitute, and saves manufacturing cost, stable and reliable in work, and fermentation overall process will not pollute ambient enviroment.
Description
[technical field]
The invention belongs to organic matter fermentation facility fields, and in particular to a kind of agitating device of large-scale fermentation cylinder is suitable for
Manufacture that organic fertilizer is pollution-free.
[background technique]
Ma Yun is mentioned in speech of on the June 21st, 2017 to 3000 multidigit enterpriser of the U.S.: China Today will be eaten every year
Fall 600,000,000 pigs, 7,000,000,000 chickens, please imagine, how surprising the excrement that so more pigs generate in 1 year is, if poultry
Poultry manure cannot be handled in time, surface water, underground water, soil and air can be caused how serious pollution in wide area.But
If organic fertilizer can be made so more excrement, that will be again how raw material sources abundant.
The prior art has the main methods of excrement and organic matter: compost or landfill, the higher processing of technology content
It is that organic fertilizer is made after fermenting, usually in a greenhouse, piles tens centimeters of thickness, periodically stirred with machinery, promote
Fermentation.It does so, not only occupies the soil of a large amount of preciousnesses, and odor pollution area is vast, mosquitos and flies breeds row, how to allow
Fermentation process carries out in closed environment, becomes the optimal scheme of numerous environment specialists, occurs in the market in recent years several
Device kind drying or fermented, is well better, but capacity is small, and processing cost is high, and applicant is by largely investigation and many years
The hermetic type vertical type fermentation cylinder of 20 tons of muck of capacity has been made in practical experience, and about three meters of diameter, about four meters of height, loose and watery stool is soft
Sticky, the steel stirring blade of pre-production is broken off repeatedly, it is seen that the torque of needs have it is much, in machinery field it is maximum and
The smallest equipment is all most difficult to manufacture, and the critical issue for being most difficult to capture in this case is how to be driven agitating shaft, and insider exists
When design large-scale rotation, it will recognize that be driven with gear ring first, this is mature technology, but the few lists of gear ring of three rice diameters
Position can work it out, if spliced with multistage, the accuracy of manufacture, installation accuracy and rigidity of gear ring etc. are all hard nut to cracks,
Farm machinery afford to be able to bear manufacturing cost by no means.The applicant is according to the farm machinery manufacturing experiences of many years, for stirring
The characteristic that axis revolving speed is slow, torque is big is mixed, has captured above-mentioned problem finally, therefore this case occurs.
[summary of the invention]
The purpose of the present invention is to provide a kind of agitating devices of large-scale fermentation cylinder to solve the above problems, using hydraulic thrust
Dynamic ratchet, ratchet drive the scheme of agitating shaft.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of agitating device of large-scale fermentation cylinder includes: to stir
Mix axis, ratchet, pawl, pushing-pulling-rack, hydraulic cylinder and hydraulic system, air pump and gas pipeline and installation it is necessary to components
Rack；
The agitating shaft is vertically mounted on the bearing base of rack by thrust bearing, can freely be turned on bearing base
It is dynamic；Several stirring blades have been welded on agitating shaft top, and agitating shaft lower part secures a ratchet, has pawl to withstand on the gear ring of ratchet
On, pawl pin joint can be swung on pushing-pulling-rack on pushing-pulling-rack, and the pushing-pulling-rack is by the approximate pushing-pulling-rack upper piece of several pieces shapes
It is formed with pushing-pulling-rack bottom sheet, has a macropore pin joint on agitating shaft, use screw between pushing-pulling-rack upper piece and pushing-pulling-rack bottom sheet
It is integrally fixed, can be swung round agitating shaft with sleeve；Also connection has tension spring on pawl, and the other end of tension spring is connected in pushing-pulling-rack
In bottom sheet or rack, tensing pawl is adjacent to it always on the gear ring of ratchet；There are also the pistons of hydraulic cylinder also pin joint to push and pull
On frame, hydraulic system starting when, piston hydraulic cylinder top stretch out or retract, by pushing frame push pawl advance or after
Reset is moved back, the piston of hydraulic cylinder often stretches once, and pawl just pushes ratchet to turn over certain angle, is rigidly fixed on ratchet
Agitating shaft just also turns over certain angle, and since the lever of pushing-pulling-rack acts on, the thrust of hydraulic cylinder is exaggerated several times of conversions
At the large torque of agitating shaft, it is fixed on the blade on agitating shaft and the muck in fermentation cylinder is just pushed to roll；In the agitating shaft
Portion be it is hollow, agitating shaft lower part is provided with hush panel, and as the terminal of airflow channel, agitating shaft top reaches fermentation cylinder
It is provided with gas delivery mask pin joint outside top cover, on top cover of cylinder body and entangles agitating shaft top, sealing is provided between gas delivery mask and agitating shaft
It encloses, there is pipeline to be connected on air pump at the top of gas delivery mask；Be also provided on stirring blade airflow channel and with inside agitating shaft
Airflow channel connection, when air pump starting, pressure-air enters the air-flow of stirring blade by the airflow channel inside agitating shaft
Channel, and sprayed out of blade rear end fumarole；Several gas outlets are additionally provided on fermentation top cover of cylinder body, in fermentation process
The exhaust gas of generation is collected from gas outlet with air-introduced machine.
Be further arranged to: the pawl and hydraulic cylinder has several, is symmetrically evenly arranged on ratchet circumference, while being spine
Wheel increases large torque, and improves the dynamic balance performance of agitating shaft.
Be further arranged to: the pushing-pulling-rack is provided with several travel switches in swing approach, and travel switch is electrically connected
The control device for having connect hydraulic system is conveniently adjusted and controls the swing angle of pushing-pulling-rack.
Be further arranged to: being provided with electric calorifie installation on the airflow line, to enter fermentation cylinder delivery air into
Row heating.
Be further arranged to: the section of the stirring blade is triangle, and slope tip is towards direction of advance.
Be further arranged to: the stirring blade is provided with fumarole, and fumarole is along stirring blade trailing flank straight line width
It penetrates shape to be distributed, the blade tip remoter from agitating shaft axial line, stomata spacing is smaller.
It is further arranged to: 45 degree of the oblique lower section of stirring blade fumarole outgassing direction, the setting of fumarole top
There is mud guard.
Be further arranged to: the stirring blade, only the three pieces stirring blade close to cylinder bottom is in same level
Upper uniformly distributed, remaining stirring blade is uniformly distributed along helix on agitating shaft, in vertical direction up and down under be not overlapped.
It is further arranged to: for the ease of manufacturing and installing, being fixedly connected after agitating shaft segmentation manufacture, nethermost two sections
Convex block shaft coupling is provided between agitating shaft.
Compared with prior art, the invention has the following beneficial effects: the drive characteristics according to low-rotate speed, large torque, use
Relative gear rings are driven much simpler hydraulic drive to substitute, and manufacturing cost is greatly saved, stable and reliable in work, convenient for behaviour
Make, be conveniently adjusted, muck ferment effect is especially good, and not only fermentation is fast, also it is " ripe " thoroughly, it is uniformly " ripe ".Due in agitating shaft
It is upper to be provided with air delivery device, fresh air needed for providing fermentation, so, the entire cylinder that ferments can enclose, in cylinder
The exhaust gas generated in fermentation process, is all collected carry out environmental protection treatment by top setting air intake device, entire to ferment overall process all
Ambient enviroment will not be polluted.
[Detailed description of the invention]
To keep figure succinct, the hydraulic system that is very familiar with to insider, air pump, tracheae are not just illustrated, anyway ability
Can installation adaptation to local conditions, which be arranged, in field technique personnel needn't elaborate any further.
Fig. 1 is that the structural schematic diagram of large-scale stirring shaft drive of the invention (to see internal structure clearly, it is outer to conceal part
Shroud body, gas delivery mask and other and the incoherent components of patent).
Fig. 2 is the full sectional view (being added to the gas delivery mask that Fig. 1 is concealed) of large-scale stirring shaft drive.
The transmission principle figure of Fig. 3 large size stirring shaft drive (in order to see ratchet clearly, make by pushing-pulling-rack upper piece below
Transparent processing, only outline on；It conceals pushing-pulling-rack upper piece above and agitating shaft top, conceal all screws, nut).
Fig. 4 is the structural schematic diagram of stirring blade.
Fig. 5 is pushing-pulling-rack structural schematic diagram.
Fig. 6 is partial enlarged view at A in Fig. 2.
Fig. 7 is partial enlarged view at B in Fig. 2.
Fig. 8 is partial enlarged view at C in Fig. 6.
Appended drawing reference:
1 agitating shaft, 11 ratchets, 12 pawls, 13 pushing-pulling-racks upper piece, 14 pushing-pulling-rack bottom sheet, 15 hydraulic cylinders, 151 pistons, 16 draw
Spring, 17 shaft couplings；18 hush panels.
2 stirring blades, 21 slopes, 22 fumaroles, 23 mud guards.
3 racks, 31 cylinder coaming plates, 32 top cover of cylinder bodies, 33 bearing bases, 34 thrust bearings, 35 gas outlets, 36 gas delivery masks,
37 air inlets, 38 sealing rings.
[specific embodiment]
The present invention is elaborated below with drawings and examples.
Embodiment 1:
Referring to Fig. 1, Fig. 2, a kind of agitating device of large-scale fermentation cylinder includes: agitating shaft 1, ratchet 11, pawl 12, push-and-pull
Frame, hydraulic cylinder 15 and hydraulic system, air pump and gas pipeline and installation institute it is necessary to the device of components general designation rack 3；
Referring to Fig. 1, Fig. 2, the agitating shaft 1 is vertically mounted on the bearing base 33 of rack by thrust bearing, can be
It is freely rotated on bearing base 33；12 stirring blades 2 are welded in 1 top of agitating shaft；Referring to Fig. 3, Fig. 5,1 lower part of agitating shaft are solid
A ratchet 11 is determined, there are two pawls 12 to withstand on the gear ring of ratchet 11,12 pin joint of pawl, can be in pushing-pulling-rack on pushing-pulling-rack
Upper swing, the pushing-pulling-rack are made of the approximate pushing-pulling-rack upper piece 13 of two groups of shapes and pushing-pulling-rack bottom sheet 14, are had one big
Hole pin joint is integrally fixed between pushing-pulling-rack upper piece 13 and pushing-pulling-rack bottom sheet 14 with screw and sleeve on agitating shaft 1, can be round
Agitating shaft 1 is swung；Also connection has tension spring 16 on pawl 12, and the other end of tension spring 16 is connected in pushing-pulling-rack bottom sheet 14 or rack 3,
Tensing pawl 12 is adjacent to it always on the gear ring of ratchet 11；There are also the pistons 151 of hydraulic cylinder 15 also pin joint on pushing-pulling-rack,
Hydraulic system starting when, piston 151 hydraulic cylinder 15 top stretch out or retract, by pushing frame push pawl 12 advance or
Person, which retreats, to be resetted, and the piston 151 of hydraulic cylinder 15 often stretches once, and pawl 12 just pushes ratchet 11 to turn over certain angle, rigidity
The agitating shaft 11 being fixed on ratchet 11 just also turns over certain angle, and since the lever of pushing-pulling-rack acts on, hydraulic cylinder 15 is pushed away
Power is exaggerated the several times of large torques for being converted to agitating shaft 1, is fixed on the blade on agitating shaft and just pushes the excrement to ferment in cylinder
Fertilizer rolling promotes the muck in cylinder to ferment uniform.Referring to Fig. 2, Fig. 6, Fig. 7, what the agitating shaft 1 was internally hollow, stirring
1 lower part of axis is provided with terminal of the hush panel 18 as airflow channel, and 1 top of agitating shaft reaches outside fermentation top cover of cylinder body 32, cylinder
It is provided with 36 pin joint of gas delivery mask on body top cover 32 and entangles 1 top of agitating shaft, referring to Fig. 8, is arranged between gas delivery mask 36 and agitating shaft 1
There is sealing ring 38, for reinforcing air-tightness；The top of gas delivery mask 36 has pipeline to be connected on air pump；It is also provided on stirring blade 2
Airflow channel is simultaneously connected to the airflow channel inside agitating shaft 1, and when air pump starting, pressure-air passes through inside agitating shaft 1
Airflow channel enter the airflow channel inside stirring blade 2, and spray, stirring out of stirring blade 2 rear end fumarole 22
Fresh air is conveyed to muck during mixing, zymogenous bacteria is promoted quickly to breed.Two are additionally provided on fermentation top cover of cylinder body 32
A gas outlet 35, collects the exhaust gas generated in fermentation process with air-introduced machine from gas outlet 35 and carries out environmental protection treatment.
Referring to Fig. 3, in the present embodiment, there are two the pawls 12 and hydraulic cylinder 15, is symmetrically evenly arranged on ratchet 11
On circumference, while increasing large torque for ratchet 11, and improve the dynamic balance performance of agitating shaft 1, keeps work more reliable and more stable.
In the present embodiment, it is provided with two groups of travel switches in the pushing-pulling-rack swing approach, is separately positioned on pushing-pulling-rack
The beginning and end of stroke, travel switch have been electrically connected the control device of hydraulic system, are conveniently adjusted and control the pendulum of pushing-pulling-rack
Dynamic angle.
In the present embodiment, it is provided with electric calorifie installation on the airflow line, convenient in season in severe winter or northern severe cold
Area is heated to the conveying air to ferment in cylinder is entered, and keeping having in fermentation cylinder is suitable for the environment temperature fermented.
Referring to Fig. 4, in the present embodiment, the section of the stirring blade 2 is triangle, and slope tip is towards advance side
To, be in soft fluffy state when falling later convenient for while pushing up muck in stirring, convenient for fermentation process it is smooth into
Row.
Referring to Fig. 4, in the present embodiment, the fumarole 22 of the stirring blade 2 is along stirring blade trailing flank straight line radiation-like
Distribution, stirring blade 2 top remoter from 1 axial line of agitating shaft, stomata spacing is smaller, becomes convenient for the outlet air pressure of fumarole 22
To consistent, the air conveyed into fermentation cylinder is evenly distributed a little.
Referring to Fig. 4, in the present embodiment, 45 degree of the oblique lower section of the outgassing direction of the fumarole 22 is set above fumarole 22
It is equipped with mud guard 23, contact fumarole 22 will not directly with muck, in order to avoid blocking.
Referring to Fig. 1, Fig. 2, in the present embodiment, three pieces of the stirring blade 2 at cylinder bottom be in same level
Cloth, remaining nine stirring blade 2 is uniformly distributed along helix on agitating shaft 1, in vertical direction up and down under be not overlapped.Make to ferment
The more uniform no dead angle of material stirring in cylinder.
Referring to Fig. 3, in the present embodiment, for the ease of manufacturing and installing, the segmentation manufacture of agitating shaft 1, nethermost two sections are stirred
It mixes and is provided with convex block shaft coupling 17 between axis 1.
The working principle of the invention is: after being packed into muck and fermenting microbe in the cylinder that ferments, starting hydraulic system is gentle
Pump, air pump continuously convey fresh sky into fermentation cylinder by the airflow channel of the inside of agitating shaft 1 and stirring blade 2
Gas, the piston 151 of hydraulic system then driving hydraulic cylinder 15 stretch primary at regular intervals, and in the present embodiment, ratchet 11 is arranged
There are 20 teeth, each ratchet occupies 18 degree, it is contemplated that the resistance of muck and the elasticity of agitating shaft 1, hydraulic system are set to live
Plug 151 stretch primary length just make agitating shaft 1 swing 20 degree, next time piston 151 stretching when, pawl 12 has 2 degree or so
Stroke be not by 11 resistance of ratchet.The purpose being arranged in this way is to ensure that the movement of each pawl 12 can be pushed reliably
Ratchet 11 avoids because stroke is inadequate, and pawl 12 only rubs in the outer ring of ratchet 11 and makes a round trip.There is tension spring 16 to rise on pawl 12
Effect, so pawl 12 is tightly attached to the periphery of ratchet 11 always.When piston 151 is retracted into the final limit, the tip of pawl 12 into
The ratchet most inner side for entering ratchet 11 is exactly near the position of 1 axis of agitating shaft；When piston 151 forward extends out, piston 151 is logical
Pushing-pulling-rack is crossed pawl 12 toward being pushed forward, the ratchet side that pawl 12 heads on ratchet 11 drives agitating shaft 1 to rotate, in the row of pawl 12
Into on the way, tension spring 16 is elongated；When piston 151 back retracts, pawl 12 is moved back toward opposite direction, and tension spring 16 is shortening, but always
It allows pawl 12 to be close to the peripheral slope of ratchet 11 to retract, at this time agitating shaft 1 is motionless under the resistance of muck, is fixed on
Ratchet 11 on agitating shaft 1 is also motionless；After pawl 12 falls back on certain distance, under the pulling of tension spring 16, pawl 12
Tip once enters the most inner side of ratchet 11 again, into the initial position of next circulation.The distance of stretch out and draw back of piston 151 by
Four travel switches control, and when travel switch is touched by pushing-pulling-rack, can issue the control that electric signal passes to hydraulic system
Device controls the contraction time and flexible stroke of piston 151.
It is emphasized that: this patent only discloses a kind of large-scale agitating shaft and its transmission device, as fermentation cylinder itself
Charging, discharging, monitoring device etc. will disclose in separate case.
The beneficial effects of the present invention are: ultra-large type agitating shaft is driven much simpler hydraulic drive with relative gear rings to replace
Manufacturing cost is greatly saved in generation, stable and reliable in work, convenient for operating, being conveniently adjusted, small in size.Due to being set on agitating shaft
Air delivery device and blower unit have been set, entire fermentation process can have been allowed to have enclosed the possibility realized, in fermentation process
Gas sampling gets up carries out environmental protection treatment again, and fermentation overall process is made all not pollute ambient enviroment.
Claims (9)
1. a kind of agitating device of large-scale fermentation cylinder, include: agitating shaft, ratchet, pawl, pushing-pulling-rack, hydraulic cylinder and hydraulic system,
Air pump and gas pipeline and installation it is necessary to the racks of components；The agitating shaft is vertically mounted on machine by thrust bearing
On the bearing base of frame, it can be freely rotated on bearing base；Agitating shaft top secures several rigid blades, agitating shaft lower part
A ratchet is secured, has pawl to withstand on the gear ring of ratchet, pawl pin joint can be swung on pushing-pulling-rack on pushing-pulling-rack, institute
The pushing-pulling-rack stated is made of the approximate pushing-pulling-rack upper piece of several pieces shapes and pushing-pulling-rack bottom sheet, has a macropore pin joint in agitating shaft
On, it is integrally fixed, can be swung round agitating shaft with screw and sleeve between pushing-pulling-rack upper piece and pushing-pulling-rack bottom sheet；On pawl also
Connection has tension spring, and the other end of tension spring is connected in pushing-pulling-rack bottom sheet or rack, and tensing pawl is adjacent to it always in ratchet
On gear ring；There are also the pistons of hydraulic cylinder also pin joint on pushing-pulling-rack, and in hydraulic system starting, piston stretches out on hydraulic cylinder top
Or retract, advancing or retreat by pushing frame promotion pawl resets, and the piston of hydraulic cylinder often stretches once, and pawl just pushes spine
Wheel turns over certain angle, and the agitating shaft being rigidly fixed on ratchet just also turns over certain angle, due to the lever of pushing-pulling-rack
Effect, the thrust of hydraulic cylinder are exaggerated the several times of large torques for being converted to agitating shaft, and the blade being fixed on agitating shaft just pushes away
Muck rolling in dynamic fermentation cylinder；What the agitating shaft was internally hollow, agitating shaft lower part is provided with hush panel, as air-flow
The terminal in channel, agitating shaft top reach outside fermentation top cover of cylinder body, gas delivery mask pin joint are provided on top cover of cylinder body and entangles stirring
Axis top is provided with sealing ring, has pipeline to be connected on air pump at the top of gas delivery mask between gas delivery mask and agitating shaft；Stirring blade
On be also provided with airflow channel and be connected to the airflow channel inside agitating shaft, when air pump starting, pressure-air passes through stirring
Airflow channel inside axis enters the airflow channel of stirring blade, and sprays out of blade rear end fumarole；Fermentation cylinder top
It covers and is additionally provided with several gas outlets, the exhaust gas generated in fermentation process is collected from gas outlet with air-introduced machine.
2. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the pawl and hydraulic cylinder
Have several, be symmetrically evenly arranged on ratchet circumference, while increasing large torque for ratchet.
3. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the pushing-pulling-rack is being swung
Several travel switches are provided in approach, travel switch has been electrically connected the control device of hydraulic system.
4. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that be provided with electricity on airflow line
Thermal.
5. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the stirring blade section
It is triangle, slope tip is towards direction of advance.
6. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: set on the stirring blade
It is equipped with fumarole, is distributed along stirring blade trailing flank straight line radiation-like, the blade tip remoter from agitating shaft axial line, between stomata
Away from smaller.
7. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the stirring blade jet
45 degree of the oblique lower section of hole outgassing direction, fumarole top are provided with mud guard.
8. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the stirring blade, only
Three pieces stirring blade close to cylinder bottom be it is uniformly distributed in same level, remaining stirring blade is equal along helix on agitating shaft
Cloth is not overlapped up and down in vertical direction.
9. a kind of agitating device of large-scale fermentation cylinder as described in claim 1, it is characterised in that: the agitating shaft is segmented system
It is fixedly connected after making, convex block shaft coupling is provided between nethermost two sections of agitating shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820833135.XU CN208389887U (en) | 2018-05-31 | 2018-05-31 | A kind of agitating device of large-scale fermentation cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820833135.XU CN208389887U (en) | 2018-05-31 | 2018-05-31 | A kind of agitating device of large-scale fermentation cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208389887U true CN208389887U (en) | 2019-01-18 |
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ID=65135006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820833135.XU Withdrawn - After Issue CN208389887U (en) | 2018-05-31 | 2018-05-31 | A kind of agitating device of large-scale fermentation cylinder |
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| Country | Link |
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| CN (1) | CN208389887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479524A (en) * | 2018-05-31 | 2018-09-04 | 嵊州市科灵机械有限公司 | A kind of agitating device of large-scale fermentation cylinder |
-
2018
- 2018-05-31 CN CN201820833135.XU patent/CN208389887U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479524A (en) * | 2018-05-31 | 2018-09-04 | 嵊州市科灵机械有限公司 | A kind of agitating device of large-scale fermentation cylinder |
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Granted publication date: 20190118 Effective date of abandoning: 20230711 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190118 Effective date of abandoning: 20230711 |