CN209797801U - Aerobic fermentation device - Google Patents
Aerobic fermentation device Download PDFInfo
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- CN209797801U CN209797801U CN201920246844.2U CN201920246844U CN209797801U CN 209797801 U CN209797801 U CN 209797801U CN 201920246844 U CN201920246844 U CN 201920246844U CN 209797801 U CN209797801 U CN 209797801U
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Abstract
The utility model relates to the technical field of bio-organic fertilizer, a aerobic fermentation device is provided. The device comprises a fermentation tank, a stirring unit, an oxygen supply unit and a dissolved oxygen detector; the upper part of the fermentation tank is provided with a feed inlet which can be opened and closed, and the lower part of the fermentation tank is provided with a liquid outlet and a slag discharge port which can be opened and closed; the stirring unit is inserted into the top of the fermentation tank and is used for stirring the material to be fermented in the fermentation tank, and the stirring speed and the stirring time of the stirring unit are adjustable; the oxygen supply unit is communicated with the lower part of the fermentation tank and is used for supplying oxygen to the fermentation tank, and the oxygen supply amount and the oxygen supply time of the oxygen supply unit are adjustable; the dissolved oxygen detector is inserted in the fermentation tank and used for detecting the dissolved oxygen of the material to be fermented. The utility model discloses can guarantee to wait to ferment the dissolved oxygen volume of material at whole fermentation process and remain throughout between target range minimum dissolved oxygen volume threshold value and the highest dissolved oxygen volume threshold value promptly to can not only promote aerobic microorganism's growth metabolism, but also can improve the quality and the production efficiency of organic liquid fertilizer.
Description
Technical Field
The utility model relates to a bio-organic fertilizer technical field especially relates to an aerobic fermentation device.
background
The organic liquid fertilizer is a novel fertilizer with high concentration, high fertilizer efficiency, multifunction and full nutrition synergy. Because the organic liquid fertilizer integrates organic nutrition, inorganic nutrition, antagonistic microorganism and metabolites thereof, compared with the traditional fertilizer, the organic liquid fertilizer contains a large amount of active cells, high-efficiency nutrient enzymes, amino acids, trace elements and other nutrient components, has better nutrient value and biocontrol function, can be absorbed by plants in a very short time, has good fluidity and is easy to transport and store.
In the preparation process of the organic liquid fertilizer, organic materials such as animal and plant residues, composted manure of livestock and poultry, mineral powder capable of serving as an organic fertilizer source and the like need to be degraded by microorganisms so as to release nutrients. Compared with an anaerobic fermentation mode, the organic liquid fertilizer prepared by using aerobic microorganisms in an aerobic fermentation mode has the advantages of short fermentation time, more thorough substance decomposition, less malodorous gas generation amount and the like. Oxygen is a necessary substance for the growth of aerobic microorganisms, so that the dissolved oxygen is a key influence factor in the process of preparing the organic liquid fertilizer. However, since the metabolic propagation of aerobic microorganisms is a dynamic change process in the fermentation process, the dissolved oxygen of the material to be fermented is difficult to maintain in a target range in the fermentation process, that is, it is difficult to create an aerobic condition suitable for the growth and metabolism of aerobic microorganisms in the fermentation process, which may not only affect the quality and production efficiency of organic liquid fertilizer, but also affect the growth of aerobic microorganisms and cause energy waste.
SUMMERY OF THE UTILITY MODEL
the utility model aims to solve the technical problem that the dissolved oxygen of materials to be fermented is difficult to maintain in the target range and further influences the quality of organic liquid fertilizer and the production efficiency in the fermentation process.
In order to solve the problems, the utility model provides an aerobic fermentation device, which comprises a fermentation tank, a stirring unit, an oxygen supply unit and a dissolved oxygen detector; the upper part of the fermentation tank is provided with a feed inlet which can be opened and closed, and the lower part of the fermentation tank is provided with a liquid outlet and a slag discharge port which can be opened and closed; the stirring unit is inserted into the top of the fermentation tank and is used for stirring the material to be fermented in the fermentation tank, and the stirring speed and the stirring time of the stirring unit are adjustable; the oxygen supply unit is communicated with the lower part of the fermentation tank and is used for supplying oxygen to the fermentation tank, and the oxygen supply amount and the oxygen supply time of the oxygen supply unit are adjustable; the dissolved oxygen detector is inserted in the fermentation tank and used for detecting the dissolved oxygen of the material to be fermented.
the stirring unit comprises a stirring shaft, a stirring motor and a speed regulator, wherein the stirring motor and the speed regulator are arranged at the top of the fermentation tank, and the speed regulator is electrically connected with the stirring motor and is used for regulating the rotating speed of the stirring motor; one end of the stirring shaft is connected with the stirring motor, and the other end of the stirring shaft is inserted into the fermentation tank; the stirring shaft is provided with a plurality of blade groups along the axial direction of the stirring shaft, and each blade group comprises a plurality of blades arranged along the radial direction of the stirring shaft at intervals.
The oxygen supply unit comprises an air pump, and the air pump is communicated with the fermentation tank sequentially through a flow regulating valve and a one-way valve.
The fermentation tank comprises a tank body, a top cover and a storage sieve plate, wherein the top end of the tank body is provided with an opening, and the top cover is covered on the opening; the material placing sieve plate is arranged in the tank body and used for bearing the materials to be fermented, and the tank body is divided into an upper cavity and a lower cavity from top to bottom by the material placing sieve plate; the slag discharge port and the liquid outlet are respectively positioned at the upper side and the lower side of the object placing sieve plate.
the lower part of the side wall of the tank body is provided with an air inlet which is connected with the oxygen supply unit, and the included angle between the air inlet and the liquid outlet in the horizontal direction is less than 180 degrees.
Wherein, the bottom of the tank body is provided with a drain outlet which can be opened and closed.
The top cover is provided with an openable exhaust port, and the exhaust port is connected with a pressure gauge.
Wherein, the top cap with the jar body is detachable to be connected.
Wherein, the aerobic fermentation device also comprises a controller, and the stirring unit, the oxygen supply unit and the dissolved oxygen detector are respectively electrically connected with the controller.
The utility model has simple structure and convenient operation, the dissolved oxygen detector monitors the dissolved oxygen of the material to be fermented in real time in the fermentation process, when the detection value of the dissolved oxygen detector, namely the actual dissolved oxygen of the material to be fermented is less than the preset minimum dissolved oxygen threshold value, the stirring speed and/or the stirring time of the large stirring unit can be adjusted, and meanwhile, the oxygen supply amount and/or the oxygen supply time of the large oxygen supply unit can be adjusted; when the detection value of the dissolved oxygen detector, namely the actual dissolved oxygen of the material to be fermented is larger than the preset maximum dissolved oxygen threshold value, the stirring speed and/or the stirring time of the stirring unit can be adjusted to be small, and meanwhile, the oxygen supply amount and/or the oxygen supply time of the oxygen supply unit can be adjusted to be small. Therefore, in the whole fermentation process, the dissolved oxygen of the material to be fermented can be always kept in a target range, namely between the lowest dissolved oxygen threshold and the highest dissolved oxygen threshold, so that the growth and metabolism of aerobic microorganisms can be promoted, an adaptive environment is provided for the aerobic microorganisms, and the quality and the production efficiency of organic liquid fertilizer can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an aerobic fermentation apparatus according to example 1 of the present invention;
FIG. 2 is a schematic view showing the structure of a fermenter according to example 1 of the present invention;
FIG. 3 is a schematic structural view of a stirring unit in embodiment 1 of the present invention;
FIG. 4 is a flow chart of a method of using an aerobic fermentation apparatus according to embodiment 2 of the present invention.
reference numerals:
1. A fermentation tank; 1-1, a feed inlet; 1-2, a liquid outlet; 1-3, a slag discharge port;
1-4, a sewage draining outlet; 1-5, an air inlet; 1-6, an exhaust port; 1-7, mounting holes;
1-8, a tank body; 1-9, a top cover; 1-10, placing sieve plate; 1-11, boss;
2. A stirring unit; 2-1, a speed regulator; 2-2, a stirring motor; 2-3, a stirring shaft;
2-4, a paddle; 3. an oxygen supply unit; 3-1, an air pump; 3-2, a flow regulating valve;
3-3, a one-way valve; 4. a dissolved oxygen detector; 5. a controller; 6. a support frame.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
It is to be understood that, unless otherwise expressly stated or limited, the term "coupled" is used in a generic sense as defined herein, e.g., fixedly attached or removably attached or integrally attached; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.
example 1
Referring to FIGS. 1 to 3, the present embodiment provides an aerobic fermentation apparatus comprising a fermentation tank 1, a stirring unit 2, an oxygen supply unit 3, and a dissolved oxygen detector 4; the upper part of the fermentation tank 1 is provided with a feed inlet 1-1 which can be opened and closed, and the lower part is provided with a liquid outlet 1-2 and a slag discharge port 1-3 which can be opened and closed; the stirring unit 2 is inserted into the top of the fermentation tank 1 and is used for stirring the material to be fermented in the fermentation tank 1, and the stirring speed and the stirring time of the stirring unit 2 are adjustable; the oxygen supply unit 3 is communicated with the lower part of the fermentation tank 1 and is used for supplying oxygen to the fermentation tank 1, and the oxygen supply amount and the oxygen supply time of the oxygen supply unit 3 are adjustable; the dissolved oxygen detector 4 is inserted in the fermentation tank 1 and is used for detecting the dissolved oxygen of the material to be fermented. The dissolved oxygen detector 4 may be, but is not limited to, a dissolved oxygen sensor.
When preparing the organic liquid fertilizer: firstly, materials to be fermented, namely animal and plant residues, organic materials such as composting and rotten livestock manure, mineral powder and the like, and aerobic microorganisms are added into a fermentation tank 1 through a feeding hole 1-1; then, adjusting the length of the dissolved oxygen detector 4 extending into the fermentation tank 1 so as to enable the detection end of the dissolved oxygen detector 4 to be positioned in the material to be fermented; next, the stirring unit 2 and the oxygen supply unit 3 are started, so that the stirring unit 2 is operated according to the preset initial stirring time and initial stirring speed, and the oxygen supply unit 3 is operated according to the preset oxygen supply time and oxygen supply amount. In the process, if the detection value of the dissolved oxygen detector 4, namely the actual dissolved oxygen of the material to be fermented, is smaller than the preset minimum dissolved oxygen threshold value, the stirring speed and the stirring time of the large stirring unit 2 can be adjusted, and meanwhile, the oxygen supply amount and the oxygen supply time of the large oxygen supply unit 3 can also be adjusted. If the detection value of the dissolved oxygen detector 4 is that the actual dissolved oxygen of the material to be fermented is larger than the preset maximum dissolved oxygen threshold value, the stirring speed and the stirring time of the stirring unit 2 can be adjusted to be small, and meanwhile, the oxygen supply amount and the oxygen supply time of the oxygen supply unit 3 can be adjusted to be small. In the above adjustment process, the stirring unit 2 may adjust the stirring time and the stirring speed of the stirring unit 2 at the same time, or may adjust only one of the stirring time and the stirring speed of the stirring unit 2 according to actual conditions. Similarly, in the oxygen supply unit 3, the oxygen supply time and the oxygen supply amount of the oxygen supply unit 3 may be adjusted at the same time in the above adjustment process, or only one of the oxygen supply time and the oxygen supply amount of the oxygen supply unit 3 may be adjusted according to actual conditions. Therefore, in the whole fermentation process, the dissolved oxygen of the material to be fermented can be always kept in a target range, namely between the minimum dissolved oxygen threshold and the maximum dissolved oxygen threshold. And finally, directly opening the liquid outlet 1-2 after fermentation is finished to obtain the organic liquid fertilizer.
In addition, in order to further reduce the labor intensity of workers, improve the regulation and control precision and realize automatic control, the device further comprises a controller 5, and the stirring unit 2, the oxygen supply unit 3 and the dissolved oxygen detector 4 are respectively and electrically connected with the controller 5. Wherein, the controller 5 may be but is not limited to a PLC controller. Before fermentation, the worker can directly set the minimum dissolved oxygen threshold, the maximum dissolved oxygen threshold, the initial stirring time and the initial stirring speed of the stirring unit 2, and the initial oxygen supply time and the initial oxygen supply amount of the oxygen supply unit 3 on the controller 5. During fermentation, the controller 5 controls the stirring unit 2 to operate at the initial stirring time and the initial stirring speed, and controls the oxygen supply unit 3 to operate at the initial oxygen supply time and the initial oxygen supply amount. In the process, the dissolved oxygen detector 4 sends the real dissolved oxygen of the material to be fermented, which is monitored in real time, to the controller 5: if the actual dissolved oxygen is smaller than the minimum dissolved oxygen threshold, the controller 5 controls the stirring unit 2 to operate according to the first stirring speed and the first stirring time and controls the oxygen supply unit 3 to operate according to the first oxygen supply amount and the first oxygen supply time; wherein, first stirring speed is greater than initial stirring speed, and first stirring time is greater than initial stirring time, and first oxygen suppliment volume is greater than initial oxygen suppliment volume, and first oxygen suppliment time is greater than initial oxygen suppliment time. If the actual dissolved oxygen is larger than the maximum dissolved oxygen threshold value, the controller 5 controls the stirring unit 2 to operate according to a second stirring speed and a second stirring time and controls the oxygen supply unit 3 to operate according to a second oxygen supply amount and a second oxygen supply time; wherein the second stirring speed is less than the initial stirring speed, and the second stirring time is less than the initial stirring time; the second oxygen supply amount is less than the initial oxygen supply amount, and the second oxygen supply time is less than the initial oxygen supply time.
Preferably, the stirring unit 2 comprises a stirring shaft 2-3, a stirring motor 2-2 and a speed regulator 2-1 which are arranged at the top of the fermentation tank 1, wherein the speed regulator 2-1 is electrically connected with the stirring motor 2-2 and is used for regulating the rotating speed of the stirring motor 2-2; one end of the stirring shaft 2-3 is connected with the stirring motor 2-2, and the other end is inserted into the fermentation tank 1; a plurality of blade groups are arranged on the stirring shaft 2-3 along the axial direction of the stirring shaft 2-3, and each blade group comprises a plurality of blades 2-4 which are arranged along the radial direction of the stirring shaft 2-3 at intervals. For example, in the present embodiment, three blade sets are provided on the stirring shaft 2-3, and each blade set includes 2 or 3 blades 2-4. Further, a stirring motor 2-2 and a speed regulator 2-1 are fixed on the top of the fermentation tank 1 through a support frame 6. When the device is provided with a controller 5, the speed regulator 2-1 is electrically connected with the controller 5, and the controller 5 regulates the rotating speed of the stirring motor 2-2 through the speed regulator 2-1, thereby regulating the rotating speed of the stirring shaft 2-3.
Preferably, the oxygen supply unit 3 comprises an air pump 3-1, and the air pump 3-1 is communicated with the fermentation tank 1 sequentially through a flow regulating valve 3-2 and a one-way valve 3-3. When the apparatus has a controller 5, the flow rate adjustment valve 3-2, the check valve 3-3 and the air pump 3-1 are electrically connected to the controller 5. In the fermentation process, the controller 5 controls the air pump 3-1 to be started, and the one-way valve 3-3 and the flow regulating valve 3-2 to be opened. When the oxygen supply amount needs to be increased, the controller 5 controls the flow regulating valve 3-2 to increase the opening degree; otherwise, the controller 5 controls the flow regulating valve 3-2 to reduce the opening degree. In addition, due to the existence of the one-way valve 3-3, the situation that the air pump 3-1 is damaged due to backflow of the material to be fermented in the fermentation tank 1 in the oxygen supply process can be avoided.
Preferably, the fermentation tank 1 comprises a tank body 1-8, a top cover 1-9 and a storage sieve plate 1-10, wherein the top end of the tank body 1-8 is open, and the top cover 1-9 is covered on the open; a plurality of sieve pores are arranged on the storage sieve plate 1-10, wherein the diameter of each sieve pore is preferably 1-3 mm; the storage sieve plate 1-10 is arranged in the tank body 1-8 and used for bearing materials to be fermented, and the tank body 1-8 is divided into an upper cavity and a lower cavity by the storage sieve plate 1-10 from top to bottom; the slag discharging port 1-3 and the liquid outlet 1-2 are respectively positioned at the upper side and the lower side of the storage sieve plate 1-10, namely, the slag discharging port 1-3 is communicated with the upper cavity body, and the liquid outlet 1-2 is communicated with the lower cavity body. The arrangement has the advantages that as the placing sieve plate 1-10 is arranged in the tank body 1-8 to form primary solid-liquid separation, organic liquid fertilizer produced in the fermentation process can directly enter the lower cavity through the sieve mesh, and organic waste residue is intercepted in the upper cavity. After fermentation is finished, the liquid outlet 1-2 is opened to directly discharge the organic liquid fertilizer stored in the lower cavity, and the residue discharge port 1-3 is opened to discharge the organic waste residue stored in the upper cavity.
Furthermore, in order to facilitate installation and cleaning of the object placing sieve plates 1-10, the object placing sieve plates 1-10 are detachably connected with the tank bodies 1-8. For example, in the embodiment, bosses 1-11 extending along the radial direction of the tank body 1-8 are arranged on the side walls of the tank body 1-8 at a distance of 10-15 cm from the bottom surface of the tank body 1-8, and the storage sieve plate 1-10 is erected on the bosses 1-11. Wherein, the slag discharging port 1-3 and the liquid outlet 1-2 are both arranged on the side wall of the tank body 1-8, the slag discharging port 1-3 is positioned at the position 0.5cm above the storage sieve plate 1-10, and the liquid outlet 1-2 is positioned at the position 0.5cm above the bottom surface of the tank body 1-8.
Further, the top cover 1-9 is detachably connected to the can body 1-8. For example, the top cover 1-9 of the present embodiment is provided with a plurality of snaps around the circumference thereof for engaging with the edges of the top of the can body 1-8. Of course, the connection between the caps 1-9 and the tanks 1-8 is not limited to the above, and for example, the caps 1-9 and the tanks 1-8 may be connected by screw threads or flanges. In addition, in order to improve the sealing performance of the fermentation tank 1, the bottom surface of the top cover 1-9 is provided with an annular groove, and a sealing ring which is used for being matched with the top surface of the tank body 1-8 in a sealing mode is embedded in the annular groove.
Further, considering that some organic waste residues with smaller sizes may pass through the sieve holes and enter the lower cavity, in order to prevent oxygen gas flow from blowing small particles of organic waste residues deposited at the bottom of the lower cavity into the liquid outlet 1-2 during oxygen supply, and further cause blockage of the liquid outlet 1-2, the air inlet 1-5 for connecting with the oxygen supply unit 3 is arranged at the lower part of the side wall of the tank body 1-8, and the included angle between the air inlet 1-5 and the liquid outlet 1-2 in the horizontal direction is less than 180 degrees, that is, the air inlet 1-5 and the liquid outlet 1-2 are not arranged opposite to each other. Wherein, the included angle between the air inlet 1-5 and the liquid outlet 1-2 in the horizontal direction is preferably 90 degrees.
Preferably, the bottom of the tank body 1-8 is provided with a drain outlet 1-4 which can be opened and closed so as to clean the small-particle organic waste residues deposited at the bottom of the lower cavity regularly.
Preferably, in order to avoid the overhigh pressure in the tank body 1-8 and facilitate the regular deflation, the top cover 1-9 is provided with an openable exhaust port 1-6, and the exhaust port 1-6 is connected with a pressure gauge.
Preferably, the top cover 1-9 is provided with mounting holes 1-7 for inserting the dissolved oxygen detector 4. More preferably, the mounting holes 1-7 are threaded holes, and the dissolved oxygen detector 4 is in threaded fit connection with the mounting holes 1-7 through connecting pipes, so that the length of the dissolved oxygen sensor extending into the tank bodies 1-8 can be adjusted conveniently.
example 2
As shown in fig. 4, the present embodiment provides a method for using an aerobic fermentation device, which comprises the following steps:
s0', setting the minimum dissolved oxygen threshold, the maximum dissolved oxygen threshold, the initial stirring time and the initial stirring speed of the stirring unit 2, and the initial oxygen supply time and the initial oxygen supply amount of the oxygen supply unit 3 on the controller 5, and jumping to execute step S0 ";
S0', controlling the stirring unit 2 to operate according to the initial stirring time and the initial stirring speed and controlling the oxygen supply unit 3 to operate according to the initial oxygen supply time and the initial oxygen supply amount, and skipping to execute the step S1;
S1, obtaining the actual dissolved oxygen of the material to be fermented through the dissolved oxygen detector 4; it should be noted that step S1 may be executed after step S0 "or in synchronization with step S0".
S2, judging whether the actual dissolved oxygen is smaller than the minimum dissolved oxygen threshold, if so, executing a step S3, otherwise, executing a step S4;
S3, increasing the stirring speed and/or stirring time of the stirring unit 2 and the oxygen supply amount and/or oxygen supply time of the oxygen supply unit 3, and skipping to execute the step S1; specifically, the method comprises the following steps: the controller 5 controls the stirring unit 2 to operate according to a first stirring speed and a first stirring time, and controls the oxygen supply unit 3 to operate according to a first oxygen supply amount and a first oxygen supply time, wherein the first stirring speed is greater than the initial stirring speed, and the first stirring time is greater than the initial stirring time; the first oxygen supply amount is larger than the initial oxygen supply amount, and the first oxygen supply time is longer than the initial oxygen supply time.
S4, judging whether the actual dissolved oxygen is larger than the maximum dissolved oxygen threshold, if so, executing a step S5, otherwise, executing a step S1;
S5, the stirring speed and/or stirring time of the stirring unit 2 and the oxygen supply amount and/or oxygen supply time of the oxygen supply unit 3 are/is reduced, and the step S1 is skipped. Specifically, the method comprises the following steps: the controller 5 controls the stirring unit 2 to operate according to a second stirring speed and a second stirring time, and controls the oxygen supply unit 3 to operate according to a second oxygen supply amount and a second oxygen supply time, wherein the second stirring speed is less than the initial stirring speed, and the second stirring time is less than the initial stirring time; the second oxygen supply amount is less than the initial oxygen supply amount, and the second oxygen supply time is less than the initial oxygen supply time.
Therefore, in the whole fermentation process, the dissolved oxygen of the material to be fermented is always kept in a target range, namely between the lowest dissolved oxygen threshold and the highest dissolved oxygen threshold, so that the growth and metabolism of aerobic microorganisms can be promoted, a suitable environment is provided for the aerobic microorganisms, and the quality and the production efficiency of organic liquid fertilizer can be improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An aerobic fermentation device is characterized by comprising a fermentation tank, a stirring unit, an oxygen supply unit and a dissolved oxygen detector; the upper part of the fermentation tank is provided with a feed inlet which can be opened and closed, and the lower part of the fermentation tank is provided with a liquid outlet and a slag discharge port which can be opened and closed; the stirring unit is inserted into the top of the fermentation tank and is used for stirring the material to be fermented in the fermentation tank, and the stirring speed and the stirring time of the stirring unit are adjustable; the oxygen supply unit is communicated with the lower part of the fermentation tank and is used for supplying oxygen to the fermentation tank, and the oxygen supply amount and the oxygen supply time of the oxygen supply unit are adjustable; the dissolved oxygen detector is inserted in the fermentation tank and used for detecting the dissolved oxygen of the material to be fermented.
2. The aerobic fermentation device of claim 1, wherein the stirring unit comprises a stirring shaft, a stirring motor and a speed regulator, the stirring motor and the speed regulator are arranged on the top of the fermentation tank, and the speed regulator is electrically connected with the stirring motor and is used for regulating the rotating speed of the stirring motor; one end of the stirring shaft is connected with the stirring motor, and the other end of the stirring shaft is inserted into the fermentation tank; the stirring shaft is provided with a plurality of blade groups along the axial direction of the stirring shaft, and each blade group comprises a plurality of blades arranged along the radial direction of the stirring shaft at intervals.
3. The aerobic fermentation device of claim 1 wherein the oxygen supply unit comprises an air pump which is in turn connected to the fermentation tank via a flow control valve and a one-way valve.
4. The aerobic fermentation device of any one of claims 1 to 3 wherein the fermentation tank comprises a tank body, a top cover and a sieve plate, the top end of the tank body is open, and the top cover is covered on the open; the material placing sieve plate is arranged in the tank body and used for bearing the materials to be fermented, and the tank body is divided into an upper cavity and a lower cavity from top to bottom by the material placing sieve plate; the slag discharge port and the liquid outlet are respectively positioned at the upper side and the lower side of the object placing sieve plate.
5. the aerobic fermentation device according to claim 4 wherein the lower part of the side wall of the tank body is provided with an air inlet for connecting with the oxygen supply unit, and the included angle between the air inlet and the liquid outlet in the horizontal direction is less than 180 °.
6. The aerobic fermentation device of claim 4 wherein the bottom of the tank body is provided with a drain outlet which can be opened and closed.
7. The aerobic fermentation device of claim 4 wherein the top lid is provided with an openable and closable vent, and the vent is connected with a pressure gauge.
8. The aerobic fermentation device of claim 4 wherein the top cover is removably attached to the tank.
9. the aerobic fermentation apparatus of claim 1 further comprising a controller, wherein the stirring unit, the oxygen supply unit and the dissolved oxygen detector are electrically connected to the controller, respectively.
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| CN201920246844.2U CN209797801U (en) | 2019-02-27 | 2019-02-27 | Aerobic fermentation device |
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| CN201920246844.2U CN209797801U (en) | 2019-02-27 | 2019-02-27 | Aerobic fermentation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796230A (en) * | 2019-02-27 | 2019-05-24 | 北京农业智能装备技术研究中心 | Aerobic fermentation device and its application method |
| CN113122446A (en) * | 2021-05-20 | 2021-07-16 | 酒泉市林德机械制造有限责任公司 | Agricultural waste resource utilization treatment equipment |
-
2019
- 2019-02-27 CN CN201920246844.2U patent/CN209797801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796230A (en) * | 2019-02-27 | 2019-05-24 | 北京农业智能装备技术研究中心 | Aerobic fermentation device and its application method |
| CN113122446A (en) * | 2021-05-20 | 2021-07-16 | 酒泉市林德机械制造有限责任公司 | Agricultural waste resource utilization treatment equipment |
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