CN217323911U - Vertical fermentation tank for microbial organic fertilizer - Google Patents
Vertical fermentation tank for microbial organic fertilizer Download PDFInfo
- Publication number
- CN217323911U CN217323911U CN202220944460.XU CN202220944460U CN217323911U CN 217323911 U CN217323911 U CN 217323911U CN 202220944460 U CN202220944460 U CN 202220944460U CN 217323911 U CN217323911 U CN 217323911U
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- China
- Prior art keywords
- fermentation tank
- exhaust
- pipe
- organic fertilizer
- purifying box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000855 fermentation Methods 0.000 title claims abstract description 125
- 230000004151 fermentation Effects 0.000 title claims abstract description 124
- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 54
- 230000000813 microbial effect Effects 0.000 title claims abstract description 53
- 238000000746 purification Methods 0.000 claims abstract description 70
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000004332 deodorization Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 9
- 230000002000 scavenging effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 38
- 239000002912 waste gas Substances 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000010926 purge Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000011403 purification operation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 102000010911 Enzyme Precursors Human genes 0.000 description 1
- 108010062466 Enzyme Precursors Proteins 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The utility model relates to a fertilizer processing equipment technical field, concretely relates to microbial organic fertilizer vertical fermentation cylinder, including the fermentation cylinder, mixer and intake pipe, the fermentation cylinder has feed inlet and discharge gate, the mixer includes driving motor and stirring rake, a serial communication port, still include exhaust gas deodorizing device, exhaust gas deodorizing device includes the purifying box, the exhaust tube, the aspiration pump, feed liquor pipe and exhaust subassembly, purifying box and fermentation cylinder fixed connection, the exhaust tube is connected with the fermentation cylinder, and be connected with the purifying box, the aspiration pump is connected with the exhaust tube, and the drive exhaust tube is bled, the feed liquor pipe is connected with the purifying box, and to inputing the scavenging solution in the purifying box, exhaust subassembly is connected with the purifying box, obtain discharging after the exhaust purification deodorization with the production in the fermentation cylinder, improve microbial organic fertilizer vertical fermentation cylinder's production microbial organic fertilizer fermentation quality's effect.
Description
Technical Field
The utility model relates to a fertilizer processing equipment technical field especially relates to a microbial organic fertilizer vertical fermentation cylinder.
Background
Traditional microbial fermentation is to pile up the material in a pile, uses the tipping bucket machine to turn over the heap once every 2-3 days after the pile-up, for the microorganism provides sufficient oxygen, accelerates the fermentation process, and one month later, stops turning over the heap, waits for natural maturity, but traditional microbial fermentation time overlength influences microbial organic fertilizer's production efficiency.
In order to solve the problems, the fermentation period of the microbial organic fertilizer fermentation tank is shortened, the organic fertilizer raw materials are put into the fermentation tank through a feeding port and are stirred and mixed through a stirrer, so that the organic fertilizer raw materials and the zymogen liquid are uniformly mixed, the fermentation quality is improved, the oxygen concentration in the fermentation tank is controlled through an air inlet assembly, and sufficient oxygen is ensured to be provided.
But among the prior art, in fermentation process, can produce a large amount of waste gases, the untimely discharge of waste gas can influence the oxygen concentration in the fermentation cylinder, influences microbial organic fertilizer's production efficiency, and waste gas can give off the stink, breed bacterium and polluted environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a microbial organic fertilizer vertical fermentation tank has solved in fermentation process, can produce a large amount of waste gas, and the untimely discharge of waste gas can influence the oxygen concentration in the fermentation cylinder, influences microbial organic fertilizer's production efficiency, and waste gas can distribute the stink, breed bacterium and polluted environment's problem.
In order to achieve the aim, the utility model provides a vertical fermentation tank for microbial organic fertilizer, which comprises a fermentation tank, a stirrer and an air inlet pipe, wherein the fermentation tank is provided with a feed inlet and a discharge outlet, the stirrer comprises a driving motor and a stirring paddle, the air inlet pipe is arranged at the top of the fermentation tank,
also comprises an exhaust gas deodorization device;
waste gas deodorizing device includes purifying box, exhaust tube, aspiration pump, feed liquor pipe and exhaust subassembly, the purifying box with fermentation cylinder fixed connection, and be located the lateral wall of fermentation cylinder, the exhaust tube with the fermentation cylinder is connected, and with the purifying box is connected, the aspiration pump with the exhaust tube is connected, and the drive the exhaust tube is bled, the feed liquor pipe with the purifying box is connected, and to the purifying box is interior to input the scavenging solution, the exhaust subassembly with the purifying box is connected, and is located the purifying box is kept away from one side of fermentation cylinder.
Wherein, exhaust gas deodorizing device still includes the flowing back subassembly, the flowing back subassembly is installed the bottom of purifying box.
The liquid discharge assembly comprises a liquid discharge pipe and a valve, and the liquid discharge pipe is connected with the purification box and is positioned at the bottom of the purification box; the valve is connected with the liquid discharge pipe and is positioned at one end of the liquid discharge pipe close to the purification box.
The exhaust assembly comprises an exhaust pipe and an exhaust pump, and the exhaust pipe is connected with the purification box and is positioned on one side of the purification box; the exhaust pump is connected with the exhaust pipe and is positioned at one end of the exhaust pipe close to the purification box.
Wherein, the purifying box has an observation window, the observation window sets up the purifying box is kept away from one side of blast pipe.
The microbial organic fertilizer vertical fermentation tank also comprises a feeding pipe and a discharging pipe, wherein the feeding pipe is connected with the fermentation tank and matched with the feeding hole; the discharging pipe is connected with the fermentation tank and matched with the discharging port.
Wherein, the vertical fermentation cylinder of microbial organic fertilizer still includes the support frame, the support frame with fermentation cylinder fixed connection, and with purifying box fixed connection, and be located the bottom of fermentation cylinder.
The microbial organic fertilizer vertical fermentation tank of the utility model feeds microbial organic fertilizer raw materials into the fermentation tank through the feed inlet, the microbial organic fertilizer raw materials are stirred and mixed evenly through the stirrer, in the stirring process, a proper amount of oxygen required by fermentation is input through the air inlet pipe, polluted and rancid waste gas can be generated in the microbial organic fertilizer fermentation process, the air pump is started to pump the waste gas in the fermentation tank into the purification liquid of the purification box through the air pumping pipe, the waste gas is emitted out of the purification liquid from the bottom of the purification liquid, the deodorization and purification operation of the waste gas is realized, and finally the waste gas is discharged out of the purification box through the exhaust assembly, therefore, the waste gas generated in the fermentation tank is purified and deodorized and then discharged, and the fermentation quality of the microbial organic fertilizer produced in the microbial organic fertilizer vertical fermentation tank is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic view of the overall structure of a vertical fermentation tank for microbial organic fertilizer according to a first embodiment of the present invention.
Fig. 2 is a schematic connection diagram of a vertical fermentation tank for microbial organic fertilizer according to a first embodiment of the present invention.
Fig. 3 is a front view of the exhaust gas deodorizing device according to the first embodiment of the present invention.
Fig. 4 is a right side connection diagram of the exhaust gas deodorizing device according to the first embodiment of the present invention.
Fig. 5 is a front view of a vertical fermentation tank for microbial organic fertilizer according to a second embodiment of the present invention.
Fig. 6 is a front view of a vertical fermentation tank for microbial organic fertilizer according to a third embodiment of the present invention.
In the figure: 101-fermentation tank, 102-stirrer, 103-gas inlet pipe, 104-material inlet pipe, 105-material outlet pipe, 106-driving motor, 107-stirring paddle, 108-waste gas deodorization device, 109-purification box, 110-gas extraction pipe, 111-gas extraction pump, 112-gas inlet pipe, 113-gas exhaust component, 114-purification liquid, 115-liquid discharge component, 116-liquid discharge pipe, 117-valve, 118-gas exhaust pipe, 119-gas exhaust pump, 120-observation window, 221-material inlet pipe, 222-material outlet pipe and 323-support frame.
Detailed Description
The embodiments of the invention will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings, and the embodiments described hereinafter with reference to the drawings are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.
The first embodiment:
referring to fig. 1 to 4, fig. 1 is a schematic view of an overall structure of a microbial organic fertilizer vertical fermentation tank, fig. 2 is a schematic view of a connection of the microbial organic fertilizer vertical fermentation tank, fig. 3 is a schematic view of a front connection of an exhaust gas deodorizing device, and fig. 4 is a schematic view of a right connection of the exhaust gas deodorizing device. The utility model relates to a microbial organic fertilizer vertical fermentation cylinder: the fermentation tank 101 is provided with a feeding hole 104 and a discharging hole 105, the stirrer 102 comprises a driving motor 106 and a stirring paddle 107, the waste gas deodorization device 108 comprises a purification tank 109, an air suction pipe 110, an air suction pump 111, an air inlet pipe 112, an air exhaust component 113 and a liquid drainage component 115, the liquid drainage component 115 comprises a liquid drainage pipe 116 and a valve 117, the air exhaust component 113 comprises an air exhaust pipe 118 and an air exhaust pump 119, and the purification tank 109 is provided with an observation window 120;
in the present embodiment, the fermentation tank 101 is a hollow cylindrical tank, and provides a fermentation site for microbial organic fertilizer fermentation, the feed inlet 104 is provided on the top of the fermentation tank 101 along the central axis, organic fertilizer raw materials are fed into the fermentation tank 101 through the feed inlet 104, the discharge outlet 105 is provided on the bottom of the fermentation tank 101 near the purge bin 109, the diameter of the discharge outlet 105 is smaller than that of the feed inlet 104, the fermented microbial organic fertilizer is output from the fermentation tank 101 through the discharge outlet 105, the agitator 102 is composed of the driving motor 106 and the agitating paddle 107, the driving motor 106 is fixedly installed on the bottom of the fermentation tank 101 along the central axis, the output shaft of the driving motor 106 faces the direction of the fermentation tank 101, and a deceleration device is installed in the driving motor 106, make driving motor 106 slowly rotates, the stirring rake 107 is installed the inside of fermentation cylinder 101, the stirring rake 107 is close to the one end of driving motor 106 runs through fermentation cylinder 101, with the output of driving motor 106 rotates and is connected, through driving motor 106 drive stirring rake 107 rotates, makes mixer 102 intensive mixing microorganism fertilizer raw materials in the fermentation cylinder 101, intake pipe 103 fixed mounting be in feed inlet 104 is kept away from one side of exhaust tube 110 to be connected with outside oxygen jar, through intake pipe 103 to input appropriate amount oxygen in the fermentation cylinder 101.
The purification box 109 is fixedly connected with the fermentation tank 101 and is located on the outer side wall of the fermentation tank 101, the suction pipe 110 is connected with the fermentation tank 101 and is connected with the purification box 109, the suction pump 111 is connected with the suction pipe 110 and drives the suction pipe 110 to suck air, the liquid inlet pipe 112 is connected with the purification box 109 and inputs a purification solution 114 into the purification box 109, and the exhaust assembly 113 is connected with the purification box 109 and is located on the side of the purification box 109 away from the fermentation tank 101; the purification box 109 is fixedly installed on the right outer side wall of the fermentation tank 101, one side of the purification box 109 connected with the fermentation tank 101 is matched with the outer side of the fermentation tank 101, the interior of the purification box 109 is hollow and rectangular, so as to provide storage conditions for the purification liquid 114 and conditions for waste gas treatment, one end of the extraction tube 110 penetrates through the top of the fermentation tank 101 and extends into the fermentation tank 101, the other end of the extraction tube 110 penetrates through the top of the purification box 109 and extends to be close to the bottom of the purification box 109, the extraction tube 110 penetrates through the fermentation tank 101 and the purification box 109, waste gas generated in the fermentation tank 101 is input into the purification box 109 through the purification box 109 for deodorization treatment, the extraction pump 111 is fixedly installed on the top of the purification box 109 close to the extraction tube 110, and with the exhaust tube 110 fixed connection, through the aspiration pump 111 realize with waste gas suction in the fermentation cylinder 101 in the purifying box 109, feed liquor pipe 112 is installed the purifying box 109 keeps away from one side of fermentation cylinder 101, and with purifying box 109 link up, feed liquor pipe 112 is connected with outside purifying liquid 114 storage jar, through feed liquor pipe 112 to purifying box 109 in input be used for purifying the deodorant waste gas purifying liquid 114, exhaust subassembly 113 fixed mounting in purifying box 109 is close to one side at the purifying box 109 top for discharge the waste gas after purifying the deodorization purifying box 109, avoid the internal gas pressure of purifying box 109 is too high.
Secondly, the drain assembly 115 is installed at the bottom of the purification box 109; the drain assembly 115 is fixedly installed at a central axis of the bottom of the purification tank 109 and is communicated with the inside of the purification tank 109, and the purified liquid 114, which cannot be purified and deodorized any more, is discharged from the purification tank 109 through the drain assembly 115.
Meanwhile, the drain pipe 116 is connected to the purification box 109 and is located at the bottom of the purification box 109; the valve 117 is connected to the drain pipe 116 and is located at one end of the drain pipe 116 close to the purification box 109; the drain pipe 116 is fixedly installed on a central axis of the bottom of the purification box 109 and is communicated with the interior of the purification box 109, when the purification liquid 114 in the purification box 109 can not purify and deodorize the exhaust gas any more, the purification liquid 114 is discharged out of the purification box 109 through the drain pipe 116, the valve 117 is fixedly installed at one end of the drain pipe 116 close to the purification box 109, the drainage operation of the drain pipe 116 is controlled through the valve 117, and the drainage speed is controlled.
Then, the exhaust pipe 118 is connected to the purge tank 109 and is located at one side of the purge tank 109; the exhaust pump 119 is connected to the exhaust pipe 118 and is located at one end of the exhaust pipe 118 close to the purification tank 109; the one end of blast pipe 118 with purifying box 109 is connected, and stretches into in the purifying box 109, the other end orientation of blast pipe 118 is kept away from the ascending direction of purifying box 109 for with purify the waste gas after the deodorization and follow export in the purifying box 109, exhaust pump 119 fixed mounting be in blast pipe 118 is close to the one end of purifying box 109, through exhaust pump 119 will emit the waste gas discharge of purifying liquid 114 purifying box 109 avoids atmospheric pressure in the purifying box 109 is too big, influences subsequent deodorization waste gas discharge purifying liquid 114.
In addition, the observation window 120 is disposed on a side of the purge tank 109 away from the exhaust pipe 118; the observation window 120 is fixedly arranged on one side of the purification box 109 far away from the exhaust pipe 118 and is located in the middle of the purification box 109, and the observation window 120 is provided with anti-corrosion visible glass, so that a worker can observe the amount of the purification liquid 114 input into the purification box 109 conveniently and observe the change of the purification liquid 114, and the purification liquid 114 can be replaced in time.
When the microbial organic fertilizer vertical fermentation tank of the embodiment is used, microbial organic fertilizer raw materials are fed into the fermentation tank 101 through the feed inlet 104, the microbial organic fertilizer raw materials are stirred and mixed uniformly through the stirrer 102, during the stirring process, a proper amount of oxygen required by fermentation is input through the air inlet pipe 103, polluted and rancid waste gas generated during the microbial organic fertilizer fermentation process is pumped into the purification liquid 114 of the purification box 109 through the air pumping pipe 110 by starting the air pumping pump 111, the waste gas in the fermentation tank 101 is pumped into the purification liquid 114 of the purification box 109, the waste gas is pumped out of the purification liquid 114 from the bottom of the purification liquid 114, the deodorization and purification operation of the waste gas is realized, and finally the waste gas is discharged out of the purification box 109 through the exhaust assembly 113, therefore, the waste gas generated in the fermentation tank 101 is purified and deodorized and then discharged, and the fermentation quality of the microbial organic fertilizer produced in the microbial organic fertilizer vertical fermentation tank is improved.
Second embodiment:
on the basis of the first embodiment, please refer to fig. 5, and fig. 5 is a front view of a vertical fermentation tank for microbial organic fertilizer. The vertical fermentation tank for microbial organic fertilizer in the embodiment further comprises a feeding pipe 221 and a discharging pipe 222.
Wherein the feeding pipe 221 is connected with the fermentation tank 101 and is matched with the feeding hole 104; the discharge pipe 222 is connected with the fermentation tank 101 and is matched with the discharge hole 105; the feeding pipe 221 is communicated with the fermentation tank 101, the diameter of the feeding pipe 221 is matched with that of the feeding hole 104, microbial organic fertilizer raw materials are fed into the fermentation tank 101 through the feeding pipe 221, the discharging pipe 222 is fixedly installed on one side, close to the discharging hole 105, of the fermentation tank 101, the discharging pipe 222 is matched with that of the discharging hole 105, and a flow control device is arranged in the discharging pipe 222 and used for outputting the fermented microbial organic fertilizer in the fermentation tank 101.
The third embodiment is:
on the basis of the first embodiment, please refer to fig. 6, and fig. 6 is a front view of a vertical fermentation tank for microbial organic fertilizer. The vertical fermentation tank for the microbial organic fertilizer further comprises a support frame 323.
Wherein, the supporting frame 323 is fixedly connected with the fermentation tank 101, fixedly connected with the purification box 109 and positioned at the bottom of the fermentation tank 101; support frame 323 with fermentation cylinder 101 fixed connection's part, with the circular bottom cooperation of fermentation cylinder 101, the centre of two ring shape support frames 323 is equipped with respectively even bracing piece, support frame 323 still have with two supports the inclined support pole of purifying box 109 is used for the auxiliary stay purifying box 109, through support frame 323 is right the microbial organic fertilizer vertical fermentation cylinder carries out the supporting role.
While the above disclosure describes one or more preferred embodiments of the present invention, it is not intended to limit the scope of the claims to such embodiments, and one skilled in the art will understand that all or a portion of the processes performed in the above embodiments may be practiced without departing from the spirit and scope of the claims.
Claims (7)
1. A vertical fermentation tank for microbial organic fertilizer comprises a fermentation tank, a stirrer and an air inlet pipe, wherein the fermentation tank is provided with a feed inlet and a discharge outlet, the stirrer comprises a driving motor and a stirring paddle, the air inlet pipe is arranged at the top of the fermentation tank, the vertical fermentation tank is characterized in that,
also comprises an exhaust gas deodorization device;
waste gas deodorizing device includes purifying box, exhaust tube, aspiration pump, feed liquor pipe and exhaust subassembly, the purifying box with fermentation cylinder fixed connection, and be located the lateral wall of fermentation cylinder, the exhaust tube with the fermentation cylinder is connected, and with the purifying box is connected, the aspiration pump with the exhaust tube is connected, and the drive the exhaust tube is bled, the feed liquor pipe with the purifying box is connected, and to the purifying box is interior to input the scavenging solution, the exhaust subassembly with the purifying box is connected, and is located the purifying box is kept away from one side of fermentation cylinder.
2. The microbial organic fertilizer vertical fermentation tank of claim 1,
the waste gas deodorization device also comprises a liquid discharge assembly, and the liquid discharge assembly is arranged at the bottom of the purification box.
3. The microbial organic fertilizer vertical fermentation tank of claim 2,
the liquid discharge assembly comprises a liquid discharge pipe and a valve, and the liquid discharge pipe is connected with the purification box and is positioned at the bottom of the purification box; the valve is connected with the liquid discharge pipe and is positioned at one end of the liquid discharge pipe close to the purification box.
4. The microbial organic fertilizer vertical fermentation tank of claim 1,
the exhaust assembly comprises an exhaust pipe and an exhaust pump, and the exhaust pipe is connected with the purification box and is positioned on one side of the purification box; the exhaust pump is connected with the exhaust pipe and is positioned at one end of the exhaust pipe close to the purification box.
5. The microbial organic fertilizer vertical fermentation tank of claim 4,
the purifying box is provided with an observation window, and the observation window is arranged on one side of the purifying box far away from the exhaust pipe.
6. The microbial organic fertilizer vertical fermentation tank of claim 1,
the microbial organic fertilizer vertical fermentation tank also comprises a feeding pipe and a discharging pipe, wherein the feeding pipe is connected with the fermentation tank and matched with the feeding hole; the discharging pipe is connected with the fermentation tank and matched with the discharging port.
7. The microbial organic fertilizer vertical fermentation tank of claim 1,
the microbial organic fertilizer vertical fermentation tank further comprises a support frame, wherein the support frame is fixedly connected with the fermentation tank, fixedly connected with the purification box and located at the bottom of the fermentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944460.XU CN217323911U (en) | 2022-04-22 | 2022-04-22 | Vertical fermentation tank for microbial organic fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944460.XU CN217323911U (en) | 2022-04-22 | 2022-04-22 | Vertical fermentation tank for microbial organic fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217323911U true CN217323911U (en) | 2022-08-30 |
Family
ID=82947901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220944460.XU Expired - Fee Related CN217323911U (en) | 2022-04-22 | 2022-04-22 | Vertical fermentation tank for microbial organic fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217323911U (en) |
-
2022
- 2022-04-22 CN CN202220944460.XU patent/CN217323911U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220830 |