CN108164300B

CN108164300B - Fermentation tank and fermentation method and application thereof

Info

Publication number: CN108164300B
Application number: CN201611118614.5A
Authority: CN
Inventors: 牛俊文; 殷骏
Original assignee: Chico Crop Science Co ltd
Current assignee: Chico Crop Science Co ltd
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2023-03-31
Anticipated expiration: 2036-12-07
Also published as: CN108164300A

Abstract

The invention relates to a fermentation tank and a fermentation method and application thereof, wherein the fermentation tank comprises a tank body, at least one turbulence pipeline is arranged in the tank body, one end of the turbulence pipeline extends out of the tank body, and the other end of the turbulence pipeline extends into the tank body; at least one air blowing pipeline is arranged in the tank body, one end of the air blowing pipeline extends out of the tank body, and the other end of the air blowing pipeline extends into the tank body; the tank body is also internally provided with is provided with a stirring device. The fermentation method is that the material is stirred and gas is introduced, and the material is repeatedly pumped and put by the stirring pipeline, thereby completing the fermentation; meanwhile, the fermentation tank can be used as a storage tank and/or a reaction kettle. According to the invention, the stirring device and the stirring pipeline are combined for use, so that materials are uniformly stirred without dead angles in the tank fermentation process, the materials are more uniformly contacted with gas, the fermentation effect is better, and the device disclosed by the invention has the advantages of simplicity in operation, short fermentation time and good effect for organic fertilizers with large fermentation quantity.

Description

Fermentation tank and fermentation tank fermentation process and use

Technical Field

The invention belongs to the technical field of biological fermentation, and particularly relates to a fermentation tank, a fermentation method and application thereof.

Background

For the fermentation of organic fertilizers, the traditional method is usually natural fermentation, the natural fermentation is a static fermentation process, and the defects of unclear flora, difficult fermentation starting, abnormal fermentation stopping, incomplete fermentation, easy production of mixed bacteria fermentation products and the like exist. Moreover, the fermentation time of natural fermentation is long, and the effect is poor. In recent years, in order to satisfy the increasing demand for bio-fermentation products in human life, devices for shortening the fermentation time and improving the fermentation effect have been increasingly developed.

CN105084695A discloses fertilizer fermentation cylinder, it includes lifting machine, agitating unit, cylinder transmission, the lifting machine includes braced frame, feeding funnel, lifts the motor, agitating unit includes the fermentation tank body, roller bearing, stirring rake, transmission, cylinder transmission includes hydraulic cylinder group, brake group, driven gear. The reaction efficiency in the fermentation process is improved and the environmental pollution is reduced by a mechanical stirring mode.

CN204824656U discloses an organic fertilizer fermentation tank, which belongs to a horizontal tank body and comprises a cylindrical, closed and horizontally placed tank body, wherein a feed inlet and a discharge outlet are formed in the tank body, at least one pair of supporting wheels are arranged at the bottom of the tank body, and transmission teeth fixedly connected with the tank body are radially and annularly arranged outside the tank body; the transmission teeth are connected with a transmission wheel gear on the output shaft of the motor; a central shaft is welded in the tank body, and a stirring blade is welded on the central shaft. It improves the area of contact of material and oxygen through the rotation of the jar body, and the jar is internal to have no dead angle for the degradation of material obtains better fermentation effect.

CN2186753Y discloses a multifunctional fermentation tank, which comprises a tank main body, a stirring device, a temperature measuring device and a material inlet and outlet. The constant temperature adjusting device, the uniform sprinkling device, the oxygen-ammonia proportion adjusting device and the constant temperature and constant pressure adjusting interface are also arranged. Its agitating unit adopts spiral auger formula structure, improves the stirring effect that turns greatly, shortens fermentation time, improves product quality.

CN104529675A discloses an organic fertilizer fermentation method, which comprises the following steps: (1) raw material treatment: drying the collected straws in the sun and then crushing to obtain straw powder; drying the collected livestock and poultry manure in the sun to obtain dry manure; pulverizing the collected Chinese medicinal materials to obtain Chinese medicinal residue; (2) mixing and stirring the materials; (3) fermentation: starting fermentation, keeping for two days, turning over the pile, and continuously performing for 3 times until the fermentation is sufficiently and uniformly; (4) completing the fermentation: the color of the material is changed into black brown, the volume of the material is reduced, the material is loose, the foul smell is avoided, and hypha is arranged on the surface. However, the fermentation process is still natural fermentation, so that the fermentation time is long and the process is slow.

CN104261918A discloses an organic fertilizer fermentation method, which adopts pool type aerobic continuous fermentation and specifically comprises the following steps: A. uniformly mixing the solid organic waste, the microbial fermentation inoculum and the auxiliary materials according to a predetermined proportion, obtaining a fermentation raw material; wherein the solid organic waste, the microbial fermentation inoculum and the ratio of 70-75:29.99-24.99:0.01, so that the carbon-nitrogen ratio in the fermentation raw material is 25-30:1; B. carrying out primary aerobic fermentation on the fermentation raw material at a temperature of not less than 55 ℃ for not less than 7 days to obtain a primary fermentation product; C. carrying out secondary fermentation on the primary fermentation product at normal temperature for 10-15 days to obtain a secondary fermentation product; D. and drying the secondary fermentation product to obtain the organic fertilizer. Therefore, the method also belongs to natural fermentation, and has the defects of long fermentation time, slow process and the like.

Most of the existing organic fertilizer fermentation processes are natural fermentation, and because the volume of a fermentation tank body is large, particularly in the organic fertilizer fermentation process, the existing fermentation device cannot realize uniform and/or sufficient stirring of materials, and relatively fixed dead angle areas still exist between stirring blades and near the bent part of the tank body, so that the existing fermentation device still has the requirement of further improvement in the aspects of fermentation time, fermentation effect and product quality. Meanwhile, the existing fermentation method has the defects that the raw material selection is not fine enough, so that the fermentation process cannot be performed fully and thoroughly, and different tank bodies are required to be used respectively in the fermentation, storage and reaction stages, so that the manufacturing standard is complex, more tank bodies are required to be used for adapting to the process, and the cost and the process waste are caused.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a fermentation tank with high fermentation speed and no stirring dead angle, a fermentation method and applications thereof.

In order to achieve the purpose, the invention provides a fermentation tank which comprises a tank body, wherein at least one stirring pipeline is arranged in the tank body, one end of the stirring pipeline extends out of the tank body, and the other end of the stirring pipeline extends into the tank body and is used for pumping and placing materials in the tank body; at least one air blowing pipeline is arranged in the tank body, one end of the air blowing pipeline extends out of the tank body, and the other end of the air blowing pipeline extends into the tank body; the tank body is also internally provided with a stirring device for stirring the materials in the tank body.

When the air blowing pipelines and the turbulence pipelines are multiple, the air blowing pipelines and the flow guide pipelines are arranged in a penetrating mode along the circumferential direction of the tank body.

The stirring device comprises a vertically arranged rotating shaft, and a plurality of stirring parts are arranged on the rotating shaft at intervals along the axial direction.

The tank body is of a structure with one end open and the other end closed, a support frame is arranged at the open end of the tank body, and one end of the rotating shaft is rotatably connected with the support frame.

Wherein, be provided with on the support frame with the drive arrangement of the one end connection of pivot.

The tank body is of a structure with two closed ends, and one end of the rotating shaft is rotatably connected with the end cover of the tank body.

Wherein, a driving device connected with one end of the rotating shaft is arranged on the end cover.

The tank wall of the tank body comprises an inner layer and an outer layer which are made of stainless steel materials, and an inner lining arranged between the inner layer and the outer layer, and the inner lining is connected with the inner layer and the outer layer through a metal clamping piece.

Wherein, be provided with detection device in the jar body for monitor material fermentation state.

Wherein, a filter screen is arranged at the pipe orifice of the turbulence pipeline.

Wherein, the bottom of the tank body is of an inverted cone structure.

A fermentation method of a fermentation tank is characterized by comprising the following steps:

introducing gas into the materials in the tank body through a gas blowing pipeline, and stirring the materials through a stirring device;

the materials in the tank body are pumped and discharged in a reciprocating way through the stirring pipeline, so that the materials are uniformly stirred and uniformly contacted with the gas;

and continuously introducing gas into the gas blowing pipeline, and continuously pumping and placing the materials in a reciprocating manner by the stirring pipeline until the fermentation of the materials is finished.

Use of a fermenter, wherein the fermenter is used as a holding tank and/or a reaction vessel.

Due to the adoption of the technical scheme, the invention has the following advantages: 1. according to the device, the stirring device and the stirring pipeline are arranged in the tank body, the stirring device can stir materials along the circumferential direction, the stirring pipeline can realize the vertical turning of the materials through pumping and placing the materials, the stirring and the fermentation without dead angles in the tank body in the fermentation process are realized through the combination of the stirring device and the stirring pipeline, and the fermentation time is effectively prolonged. 2. According to the device, the air blowing pipeline is arranged in the tank body, and the air blowing pipeline and the turbulence pipeline are uniformly distributed along the circumferential direction of the tank body, so that the contact range of materials and gas is effectively enlarged, and the air blowing time is shortened. 3. The device has the advantages of simple operation, short fermentation time and good effect aiming at the organic fertilizer with large fermentation amount.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference characters designate like or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of a stirring device of the present invention;

FIG. 4 is a schematic view of the structure of the air blowing duct of the present invention;

FIG. 5 is a schematic view of the construction of the turbulence conduit of the present invention;

FIG. 6 is a schematic view of the installation of the turbulence conduit of the present invention;

FIG. 7 is a schematic view of the installation of the air blowing duct of the present invention;

FIG. 8 is a flow chart of a fermentation process of the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper, lower, left, right, inner, outer, front, rear, leading, trailing, etc. indicate orientations or positional relationships based on those shown in the drawings, and are simply for convenience of simplifying the description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the device of the invention comprises a tank body 1 which is vertically placed, at least one turbulence pipeline 2 is arranged on the inner side wall of the tank body 1, one end of the turbulence pipeline 2 extends out of the tank body 1 to be connected with external equipment, and the other end of the turbulence pipeline 2 extends into the tank body 1 to be used for pumping and placing materials in the tank body 1; the inner side of the tank body 1 is also provided with at least one air blowing pipeline 3, one end of the air blowing pipeline 3 extends out of the tank body 1 to be connected with external equipment, and the other end of the air blowing pipeline 3 extends into the tank body 1 to be used for introducing air into the tank body 1; a stirring device 4 for stirring the materials in the tank body 1 is also arranged in the tank body 1.

It should be noted that the other ends of the turbulence pipe 2 and the air blowing pipe 3 can be adjusted according to the working condition and extend to the upper part, the middle part, the bottom part or any position of the tank body 1.

As shown in fig. 3, the stirring device 4 includes a vertically arranged rotating shaft 41, a plurality of stirring portions 42 are axially arranged on the rotating shaft 41 at intervals, and the stirring portions 42 can be blades with any shape in the prior art, such as a rod shape, a spiral shape, a fan blade shape, and the like, and can effectively stir the material; meanwhile, a plurality of stirring rods may be provided at intervals on the rotating shaft 41, and a stirring portion 42 may be provided on each stirring rod, so as to improve the stirring effect.

In a preferred embodiment, the tank body 1 is of a structure with one open end and one closed end, a support frame 5 horizontally arranged is arranged at the open end of the tank body 1, one end of a rotating shaft 41 penetrates through the support frame 5 and is rotatably connected with the support frame 5, and a driving device 6 connected with the rotating shaft 41 is arranged on the support frame 5 and is used for driving the rotating shaft 41 to rotate, so that the stirring device 4 can stir materials. Wherein, in order to make the material stirring more even, the one end of pivot 41 is connected with the center of support frame 5 to guarantee that all materials homoenergetic stir.

Wherein, in order to make the support frame 5 and the tank body 1 more firmly connected, an annular support platform (not shown in the figure) can be horizontally arranged on the tank body 1 along the circumferential direction, and the periphery of the support frame 5 is tightly connected with the support platform.

In a preferred embodiment, the tank 1 is a structure with two closed ends, one end of the rotating shaft 41 penetrates through the end cover of the tank 1 and is rotatably connected with the end cover, and the driving device 6 connected with the rotating shaft 41 is arranged on the end cover of the tank 1.

In a preferred embodiment, the number of the air blowing pipelines 3 is at least two, each air blowing pipeline 3 and the turbulence pipeline 2 are arranged at equal intervals along the circumferential direction of the tank body 1, and the turbulence pipelines 2 are positioned between the air blowing pipelines 3, so that the material fermentation and the stirring are more uniform, and the fermentation efficiency is improved.

In order to make the material in the stirring pipeline 2 more efficient take out, put jar body 1, can set up the bottom of jar body 1 to the back taper structure, and stir the center that flows the other end of pipeline 2 and extend to the back taper bottom for make the material can concentrate the bottom of jar body 1 be convenient for collect and stir the complete taking out, putting of flowing pipeline 2.

Wherein, the bottom of the tank body 1 is not limited to the inverted cone structure, and can also adopt an inclined bottom surface structure, and the other end of the stirring pipeline 2 extends to the bottommost part of the inclined bottom surface. It should be noted that the bottom surface of the tank body 1 only needs to be capable of collecting the materials in the tank body 1 so as to facilitate the pumping and placing of the stirring pipeline 2.

As shown in fig. 4, a flange 7 is disposed at one end of each air blowing pipeline 3 extending out of the tank body 1, and the flange 7 is connected with an air compressor (not shown in the figure) and is used for introducing gas into each air blowing pipeline 3 to ferment the material.

As shown in fig. 5, a flange 7 is arranged at one end of the turbulence pipe 2 extending out of the tank body 1, and the flange 7 is connected with a corrosion-resistant pump (not shown in the figure) and used for enabling the materials in the tank body 1 to enter and exit from the turbulence pipe 2 through the corrosion-resistant pump, so as to realize the turning of the materials in the fermentation process and the extraction of the materials settled at the bottom after the fermentation process is finished.

As shown in fig. 6 and 7, in order to prevent the agitation pipeline 2 and the air blowing pipeline 3 from interfering with material stirring and fermentation during operation and simultaneously prevent the agitation pipeline 2 and the air blowing pipeline 3 from being damaged or corroded, the agitation pipeline 2 and the air blowing pipeline 3 can be embedded in the wall of the tank body 1 to avoid being exposed.

In the above embodiment, the air blowing pipeline 3 and the turbulence pipeline 2 may be embedded in the tank wall of the tank body 1, or may be attached to and extend to the bottom of the tank body 1 along the inner tank wall, or may be spaced apart from the inner tank wall.

In the above embodiment, the wall of the can body 1 includes inner and outer layers coated with stainless steel, and a reinforcing inner liner (not shown) made of a metal hoop member for improving the strength and corrosion resistance of the can body 1, wherein the inner liner is disposed between the inner and outer layers.

In the above embodiment, the nozzle of the turbulence pipe 2 is provided with a filter screen (not shown), the filter screen is used for filtering materials, wherein the diameter of the meshes of the filter screen is between 0.2cm and 0.5 cm.

In the above embodiment, the tank 1 is provided with a detection device, which includes a temperature sensor, a liquid level sensor, and the like, for detecting the fermentation condition of the material in the tank 1.

In the above embodiment, the driving device 6 may be a motor, a hydraulic cylinder, an air cylinder, or the like.

In the above embodiment, the pipe diameter of the turbulence pipe 2 is larger than that of the air blowing pipe 3.

The technical effect of the device according to the invention is illustrated below by means of a specific embodiment.

Examples

The tank body 1 is a tank body with the inner diameter of 135cm, the height of the tank body of 40cm, the depth of the inverted cone bottom of 40cm and the total volume of about 12.2 cubic meters, and when the tank is used, the tank body 1 is buried underground, and the upper part of the tank body is exposed out of the ground, so that the loading and observation operations are facilitated.

When the device of the embodiment works, after materials are added into the tank body 1, the rotating shaft 41 of the driving device 6 is started to drive the stirring part 42 to rotate, so that the materials are stirred, gas is introduced into the tank through the gas blowing pipeline 3 to ferment the materials, then the pump connected with the stirring pipeline 2 is started, the stirring pipeline 2 is driven to perform reciprocating pumping and releasing motion on the materials in the tank body 1, the materials are further uniformly stirred, and the materials are fully contacted with the gas.

As shown in fig. 8, the present invention also includes a fermentation method based on the above device, which comprises the following steps:

1) Pretreating the materials

Crushing and screening the pre-fermented organic fertilizer raw materials to obtain raw materials with the particle size of not more than 0.5cm for the fermentation process;

2) Device inspection

The tank body 1 is cleaned, so that the fermentation process can be smoothly carried out;

checking the smoothness of the turbulence pipeline 2 and the air blowing pipeline 3;

checking the blockage condition of the filter screen, and replacing the filter screen if necessary;

checking whether the stirring device 4 and the detection device work normally;

3) Adding the materials into the tank body 1 according to the proportion, and starting the stirring device 4 to stir until the materials are uniformly mixed;

4) Starting an air compressor, introducing sufficient gas into the tank body 1 through an air blowing pipeline 3 to ensure the normal operation of the fermentation process, and starting the fermentation process;

5) Fermentation monitoring

Monitoring the temperature value displayed by the temperature sensor in the fermentation process, wherein the temperature value gradually rises along with the fermentation process, the temperature value drops after the fermentation process reaches the peak value, and a proper amount of zymophyte agent is added into the tank body 1 according to the fermentation degree when the temperature value drops to be lower than 40 ℃; then starting the stirring device 4 to uniformly mix the materials;

6) Starting a pump, and enabling the materials to be pumped and discharged in a reciprocating manner through the stirring pipeline 2, so that the materials are uniformly stirred and uniformly contacted with gas for 10-40min;

7) And repeating the steps 4) to 6) according to the material fermentation condition until the material fermentation is finished.

The invention also includes uses based on the above apparatus and method:

when the device does not work, the device can be used as a storage tank;

after the fermentation is finished, the material which is not dissolved in the liquid can be pumped out through the stirring pipeline 2, so that the device can be used as a reaction kettle.

The device can also be used as a fermentation system, namely a plurality of tank bodies 1 are connected in series for use, the tank bodies 1 are arranged in series according to the requirement of enterprise capacity and respectively used as a fermentation tank, a storage tank and/or a reaction kettle, and the tank bodies 1, the storage tank and/or the reaction kettle can also be switched at any time according to the requirement of enterprise capacity and process.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A fermentation tank is characterized by comprising a tank body, wherein at least one turbulence pipeline is arranged in the tank body, one end of the turbulence pipeline extends out of the tank body, the other end of the turbulence pipeline extends into the tank body, and one end of the turbulence pipeline extending into the tank body is used for pumping and placing materials in the tank body in a reciprocating manner; at least one air blowing pipeline is arranged in the tank body, one end of the air blowing pipeline extends out of the tank body, and the other end of the air blowing pipeline extends into the tank body; the tank body is also internally provided with a stirring device for stirring the materials in the tank body; when the number of the air blowing pipelines and the number of the turbulence pipelines are multiple, all the air blowing pipelines and all the turbulence pipelines are arranged in a penetrating manner along the circumferential direction of the tank body; the stirring device comprises a rotating shaft which is vertically arranged, and a plurality of stirring parts are arranged on the rotating shaft at intervals along the axial direction; the bottom of the tank body is of an inverted cone structure or an inclined bottom surface structure.

2. The fermenter according to claim 1, wherein the tank body is open at one end and closed at the other end, a support frame is provided at the open end of the tank body, and one end of the rotating shaft is rotatably connected with the support frame.

3. The fermenter according to claim 2, wherein a driving unit connected to one end of the rotating shaft is provided on the supporting frame.

4. The fermenter according to claim 1, wherein the tank is closed at both ends, and one end of the rotating shaft is rotatably connected to the end cap of the tank.

5. The fermenter according to claim 4, wherein a driving unit connected to one end of the shaft is provided on the lid.

6. The fermenter according to any one of claims 1 to 5, wherein the wall of the tank body comprises inner and outer layers made of stainless steel material, and an inner lining disposed between the inner and outer layers, the inner lining being connected to the inner and outer layers by a metal band.

7. A fermenter according to any one of claims 1 to 5, wherein a detection device is provided in the vessel for monitoring the fermentation status of the material.

8. The fermenter according to any one of claims 1 to 5, wherein a filter screen is provided at the mouth of the turbulence conduit.

9. A fermentation method of a fermenter, characterized in that the fermenter according to any of claims 1 to 8 is used, comprising: introducing gas into the materials in the tank body through a gas blowing pipeline, and stirring the materials through a stirring device; one end of the stirring pipeline extending into the tank body is used for pumping and discharging the materials in the tank body in a reciprocating manner, so that the materials are uniformly stirred and are uniformly contacted with the gas; and continuously introducing gas into the gas blowing pipeline, and continuously pumping and placing the materials in a reciprocating manner by the stirring pipeline until the fermentation of the materials is completed.

10. Use of a fermenter according to one of the claims 1 to 8 as a holding tank and/or reaction vessel.