CN107603872B - Aerobic fermentation process for solid material - Google Patents
Aerobic fermentation process for solid material Download PDFInfo
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- CN107603872B CN107603872B CN201711009384.3A CN201711009384A CN107603872B CN 107603872 B CN107603872 B CN 107603872B CN 201711009384 A CN201711009384 A CN 201711009384A CN 107603872 B CN107603872 B CN 107603872B
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Abstract
The invention discloses an aerobic fermentation process of solid materials, which comprises a fermentation tank with an open upper end, wherein a plurality of explosion air holes are uniformly distributed at the bottom of the fermentation tank, the explosion air holes are distributed in a matrix manner, the distance between the longitudinal direction and the transverse direction of the adjacent explosion air holes is 300, the aperture phi of each explosion air hole is 1, all the explosion air holes are communicated with an air compressor outside the fermentation tank through high-pressure pipelines, and a composite sensor is arranged on the side wall of the fermentation tank, and the process specifically comprises the following steps: firstly, placing the prepared materials into a fermentation tank, starting an air compressor to perform aeration for 10-20min after T1 time from the moment when the composite sensor detects that the temperature rises to T1, wherein T1 meets the conditions that T1 is more than or equal to 60 ℃ and less than or equal to 70 ℃, and T1 meets the conditions that T1 is more than or equal to 3.5h and less than or equal to 4.5 h; until the composite sensor detects 25% humidity. Therefore, the aeration technology can be applied to the actual solid material aerobic fermentation process, the working environment of the solid material aerobic fermentation is effectively improved, the equipment failure rate is reduced, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of aerobic fermentation, and particularly relates to an aerobic fermentation process for solid materials.
Background
At present, the utilization of human, livestock, poultry and other excrement is widely realized by generating biogas slurry and biogas through anaerobic fermentation in a biogas digester, wherein the biogas can be used for energy combustion, and the biogas slurry can be used as fertilizer or feed. However, because biogas slurry products cannot be commercialized and the temperature requirements for biogas digester operation are high, this treatment must be marginalized. The current mainstream research direction is to prepare organic fertilizer from excrement, so that commercialization of the product and standardization of product quality are facilitated, and aerobic fermentation of prepared solid materials is necessarily required.
However, the aerobic fermentation of the existing solid materials adopts the modes of turning and stirring the materials in a fermentation tank/trough and the like to promote the materials to be fully contacted with the air; such a means of promoting aerobic fermentation is described in, for example, patent applications No. 200910216676.3 and No. 201310743681.6. The traditional extensive aerobic fermentation is not beneficial to ensuring the stability of the product; moreover, the working environment is severe, and almost no one is willing to do the work, so that the labor cost is high; moreover, the failure rate of the turning and stirring equipment is high, the maintenance is inconvenient, and the continuous production is not facilitated.
In fact, in aerobic fermentation treatment of liquid materials, an aeration technique is generally adopted to promote the contact between the materials and air, that is, air is pumped into the materials by an air compressor. However, the gas explosion technology is limited to liquid material treatment at present, and for aerobic fermentation of solid materials, the practical application problem of the gas explosion technology is not solved all the time.
Disclosure of Invention
The invention aims to provide an aerobic fermentation process for solid materials, which is used for applying an aeration technology to aerobic fermentation of the solid materials, so that the working environment of the aerobic fermentation of the solid materials is improved, the failure rate of equipment is reduced, and the production efficiency is improved.
The technical scheme of the invention is as follows: the utility model provides an aerobic fermentation process of solid-state material, includes the open fermentation vat in upper end the fermentation vat bottom has evenly arranged a plurality of blowholes, it is the matrix distribution to explode the gas hole to adjacent blow the gas hole vertically and transversely between the interval be 300, each explode the aperture phi of gas hole 1, all explode the gas hole and all communicate through high-pressure line and the outer air compressor machine of fermentation vat the fermentation vat lateral wall is installed compound sensor for real-time supervision temperature and humidity, still includes following step:
the method comprises the following steps: placing the prepared materials into a fermentation tank, and gradually raising the temperature of the materials along with the aerobic fermentation of the materials;
step two: when the composite sensor detects that the temperature rises to T1, starting the air compressor for 10-20min after T1 time from the moment, wherein T1 meets the conditions that T1 is more than or equal to 60 ℃ and less than or equal to 70 ℃, and T1 meets the conditions that T1 is more than or equal to 3.5h and less than or equal to 4.5 h;
step three: and repeating the step two for many times until the humidity detected by the composite sensor is 25 percent and the aerobic fermentation is finished.
The aeration device is arranged at the bottom of the fermentation tank, the fermentation degree of the solid material is determined by utilizing the temperature and humidity parameters, and the aeration parameter of the solid material is reasonably designed, so that the aeration technology can be applied to the actual aerobic fermentation process of the solid material, the working environment of the aerobic fermentation of the solid material is effectively improved, the failure rate of equipment is reduced, and the production efficiency is improved.
The fermentation tank is a concrete tank with 4000 x 4000, and the pressure of the air compressor is 1.8 MPa.
The distance between the composite sensor and the fermentation tank bottom is 1000.
The air compressor control system is characterized by further comprising a delay switch, the compound sensor and the air compressor are all connected into the control system, when the compound sensor detects that the temperature is T1, the delay switch automatically starts time delay T1, and then the air compressor is automatically started. The automatic control of the equipment is convenient to realize, and the labor cost is reduced.
And (3) the air compressor is aerated for 15min each time, wherein the T1 is 70 ℃, and the T1 is 4 h.
Explode the gas pocket and constitute by hollow screw's hole 3900 a 3900 mounting panel has been arranged at the bottom of the fermentation vat set up on the mounting panel with the mounting hole of exploding the gas pocket one-to-one, hollow screw installs in the mounting hole, the upper end of hollow screw flushes with the mounting panel upper plate face, the lower extreme and the high-pressure line intercommunication of hollow screw, high-pressure line is located the mounting panel below the lower extreme cartridge of fermentation vat lateral wall has the joint, the inner and the high-pressure line intercommunication that connect, the outer end and the air compressor machine intercommunication that connect. The arrangement structure of the explosion hole is simple, and the explosion hole is convenient to assemble, disassemble and maintain.
The mounting plate is provided with a 200 x 200 notch at the position opposite to the joint, and the notch is provided with a cover plate. The arrangement of the notch is convenient for connecting the high-pressure pipeline with the inner end of the joint, and the cover plate is placed after the connection is completed, so that the material is prevented from leaking into the lower part of the mounting plate.
Has the advantages that: the invention provides an aerobic fermentation process for solid materials, which can apply an aeration technology to the actual solid material aerobic fermentation process by arranging an aeration device at the bottom of a fermentation tank, determining the fermentation degree of the solid materials by using temperature and humidity parameters and reasonably designing the aeration parameters of the solid materials.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of a fermentation tank according to the present invention.
Fig. 2 is a bottom view of the mounting plate and high pressure line of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Reference numerals: fermenting vat 1, mounting panel 2, breach 2a, high-pressure line 3, apron 4, joint 5, air compressor machine 6, explosion hole 7, hollow screw 8, composite sensor 9.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, fig. 2 and fig. 3, the present invention includes a fermentation tank 1 with an open upper end, and in this embodiment, the fermentation tank 1 is preferably a concrete tank with 4000 × 4000. A plurality of explosion vents 7 are uniformly arranged at the bottom of the fermentation tank 1, the explosion vents 7 are distributed in a matrix manner, the distance between the longitudinal direction and the transverse direction of each adjacent explosion vent 7 is 300, and the aperture phi of each explosion vent 7 is 1. In the present embodiment, the explosion vent 7 is preferably formed by an inner hole of a hollow screw 8. 3900 x 3900 mounting plate 2 is arranged on the bottom of the fermentation tank 1, mounting holes corresponding to the aeration holes 7 one by one are formed in the mounting plate 2, the hollow screws 8 are mounted in the mounting holes, and the upper ends of the hollow screws 8 are flush with the upper plate surface of the mounting plate 2.
All the explosion holes 7 are communicated with an air compressor 6 outside the fermentation tank 1 through a high-pressure pipeline 3, and the pressure of the air compressor 6 is 1.8 MPa. The high-pressure pipeline 3 is positioned below the mounting plate 2, and the lower end of the hollow screw 8 is communicated with the high-pressure pipeline 3. The lower end of the side wall of the fermentation tank 1 is inserted with a horizontally arranged joint 5, the inner end of the joint 5 is communicated with the high-pressure pipeline 3, and the outer end of the joint 5 is communicated with an air compressor 6. A notch 2a of 200 x 200 is formed at the position, opposite to the joint 5, of the mounting plate 2, a cover plate 4 is mounted at the notch 2a, and the cover plate 4 is a square plate of 200 x 200.
The shape, shape and arrangement of the high-pressure pipeline 3 are not limited and are set according to actual requirements. In the embodiment, the high-pressure pipeline 3 preferably comprises a main gas pipe, and one end of the main gas pipe is communicated with the joint 5; the gas-liquid separation device is characterized by further comprising a plurality of branch gas pipes vertically communicated with the main gas pipe, wherein a plurality of bent pipes are connected to the branch gas pipes through three-way pipe joints 5, the bent pipes correspond to the gas explosion holes 7 in the mounting plate 2 one by one, and the bent pipes are connected with hollow screws 8 in the gas explosion holes 7.
A composite sensor 9 is installed on the side wall of the fermentation tank 1 and used for monitoring temperature and humidity in real time, and the distance between the composite sensor 9 and the bottom of the fermentation tank 1 is 1000.
The invention also comprises the following steps:
the method comprises the following steps: the prepared materials are placed into the fermentation tank 1, aerobic fermentation of the materials is started, and the temperature of the materials gradually rises along with the proceeding of the aerobic fermentation of the materials. The configuration of the materials mainly comprises the adjustment of carbon-nitrogen ratio, water content and fermentation bacteria addition, which are the same as those in the prior art and are not described herein. In fact, the moisture content of the material is 40% -60%, and the material with the moisture content does not generate flowing liquid, and the embodiment is preferably 50%.
Step two: when the composite sensor 9 detects that the temperature rises to T1, starting the air compressor 6 to explode for 10-20min after T1 time from the moment, wherein T1 meets the conditions that T1 is more than or equal to 60 ℃ and less than or equal to 70 ℃, and T1 meets the conditions that T1 is more than or equal to 3.5h and less than or equal to 4.5 h; in this embodiment, T1 is preferably 70 ℃, T1 is 4h, and the air compressor 6 is aerated for 15min each time.
Step three: and repeating the step two for many times until the humidity detected by the composite sensor 9 is 25 percent and the aerobic fermentation is finished.
In fact, in order to reduce labor cost and improve the automation level of the equipment, the present embodiment further includes a delay switch, the delay switch and the composite sensor 9 and the air compressor 6 are both connected to the control system, when the composite sensor 9 detects that the temperature is T1, the delay switch automatically turns on for a delay time of T1, and then the air compressor 6 automatically turns on.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and 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 or all of the technical features may be equivalently replaced; for example, T1 is changed to 60 ℃, 62 ℃ or 67 ℃, T1 is changed to 3.5h, 3.8h, 4.3h or 4.5h, each aeration time of the air compressor is changed to 10min, 13min, 18min or 20min, the arrangement of the explosion holes is changed to direct holes on the high-pressure pipeline, and the like, without causing the essence of the corresponding technical scheme to depart from the technical scheme of each embodiment of the invention, and the technical scheme is covered in the scope of the claims and the specification of the invention.
Claims (3)
1. An aerobic fermentation process of solid materials is characterized in that: including the open fermentation vat in upper end the fermentation vat bottom has evenly arranged a plurality of blowholes, it is the matrix distribution to explode the gas hole to adjacent gas hole that explodes is vertical 300 with horizontal interval between, each the aperture phi of exploding the gas hole is 1, and all explode the gas hole and all communicate through the outer air compressor machine of high-pressure line and fermentation vat the fermentation vat lateral wall is installed composite sensor for real-time supervision temperature and humidity still include following step:
the method comprises the following steps: placing the prepared materials into a fermentation tank, and gradually raising the temperature of the materials along with the aerobic fermentation of the materials;
step two: when the composite sensor detects that the temperature rises to T1, starting the air compressor for 10-20min after T1 time from the moment, wherein T1 meets the conditions that T1 is more than or equal to 60 ℃ and less than or equal to 70 ℃, and T1 meets the conditions that T1 is more than or equal to 3.5h and less than or equal to 4.5 h;
step three: repeating the second step for many times until the humidity detected by the composite sensor is 25% and the aerobic fermentation is finished;
the fermentation tank is a concrete tank with the pressure of 4000 x 4000, and the pressure of the air compressor is 1.8 MPa;
the distance between the composite sensor and the fermentation tank bottom is 1000;
the air compressor control system further comprises a delay switch, the compound sensor and the air compressor are all connected to the control system, when the compound sensor detects that the temperature is T1, the delay switch is automatically started for a delay time of T1, and then the air compressor is automatically started; explode the gas pocket and constitute by hollow screw's hole 3900 a 3900 mounting panel has been arranged at the bottom of the fermentation vat set up on the mounting panel with the mounting hole of exploding the gas pocket one-to-one, hollow screw installs in the mounting hole, the upper end of hollow screw flushes with the mounting panel upper plate face, the lower extreme and the high-pressure line intercommunication of hollow screw, high-pressure line is located the mounting panel below the lower extreme cartridge of fermentation vat lateral wall has the joint, the inner and the high-pressure line intercommunication that connect, the outer end and the air compressor machine intercommunication that connect.
2. Aerobic fermentation process of solid matter according to claim 1, characterized in that: and (3) the air compressor is aerated for 15min each time, wherein the T1 is 70 ℃, and the T1 is 4 h.
3. Aerobic fermentation process of solid matter according to claim 1, characterized in that: the mounting plate is provided with a 200 x 200 notch at the position opposite to the joint, and the notch is provided with a cover plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711009384.3A CN107603872B (en) | 2017-10-25 | 2017-10-25 | Aerobic fermentation process for solid material |
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| CN201711009384.3A CN107603872B (en) | 2017-10-25 | 2017-10-25 | Aerobic fermentation process for solid material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717284A (en) * | 2009-12-10 | 2010-06-02 | 四川农业大学 | Method for preparing organic compound fertilizer by treating chicken manure through biological fermentation technology |
| CN103964913A (en) * | 2014-05-15 | 2014-08-06 | 台冠生物科技（上海）有限公司 | High-pressure aerobic aeration device, high-pressure aerobic fermentation device and mounting method of high-pressure aerobic fermentation device |
| CN105503305A (en) * | 2016-01-20 | 2016-04-20 | 北京丰泰民安生物科技有限公司 | Organic fertilizer trough-type aeration fermenting production process and trough-type fermenting tank |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7078201B2 (en) * | 2004-12-01 | 2006-07-18 | Burmaster Brian M | Ethanol fermentation using oxidation reduction potential |
| CN105541427A (en) * | 2016-02-25 | 2016-05-04 | 江苏省农业科学院 | Straw fermentation processing device and application thereof |
| CN205933668U (en) * | 2016-06-08 | 2017-02-08 | 蔡永辉 | Aeration, collection and carminative combination system in solid -state compost aerobic fermentation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717284A (en) * | 2009-12-10 | 2010-06-02 | 四川农业大学 | Method for preparing organic compound fertilizer by treating chicken manure through biological fermentation technology |
| CN103964913A (en) * | 2014-05-15 | 2014-08-06 | 台冠生物科技（上海）有限公司 | High-pressure aerobic aeration device, high-pressure aerobic fermentation device and mounting method of high-pressure aerobic fermentation device |
| CN105503305A (en) * | 2016-01-20 | 2016-04-20 | 北京丰泰民安生物科技有限公司 | Organic fertilizer trough-type aeration fermenting production process and trough-type fermenting tank |
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Effective date of registration: 20210407 Address after: 330800 Tianxin administrative village Tiandong village, DUSHENG Town, Gao'an City, Yichun City, Jiangxi Province Applicant after: GAO'AN BAODI ECOLOGICAL AGRICULTURAL TECHNOLOGY Co.,Ltd. Address before: 330000 Building 5, 1388 Jingkai Avenue, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Applicant before: JIANGXI RUISAIKE ECOLOGICAL TECHNOLOGY Co.,Ltd. |
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