CN115504816A - Harmless rapid pure physical treatment method suitable for cow dung - Google Patents
Harmless rapid pure physical treatment method suitable for cow dung Download PDFInfo
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- CN115504816A CN115504816A CN202211242821.7A CN202211242821A CN115504816A CN 115504816 A CN115504816 A CN 115504816A CN 202211242821 A CN202211242821 A CN 202211242821A CN 115504816 A CN115504816 A CN 115504816A
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- cow dung
- treatment
- vacuum drying
- method suitable
- harmless
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/06—Apparatus for the manufacture
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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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
Abstract
The invention discloses a harmless rapid pure physical treatment method suitable for cow dung, and relates to the technical field of agricultural dung environment-friendly treatment. The invention comprises the following steps: collecting and crushing pretreatment, namely collecting cow dung and crushing the collected cow dung; step two, vacuum drying treatment, namely adding the cow dung crushed in the step one into a vacuum drying device for vacuum drying operation, and generating waste liquid and drying and discharging; and step three, mixing treatment, namely mixing the dried discharged material generated in the step two with EM (effective microorganisms) or other beneficial bacteria powder, and simultaneously enabling the dried discharged material to be used as a basic material in machine fertilizer processing. The method for treating the cow dung is a pure physical treatment mode, the treatment process is simple and efficient, the energy consumption is low, the product is an organic matrix subjected to sterilization and deinsectization treatment, organic matters and various medium and trace elements beneficial to soil in cow dung waste gas are reserved to the maximum extent, and the aim of recycling the cow dung is fulfilled.
Description
Technical Field
The invention belongs to the technical field of agricultural excrement environmental protection treatment, and particularly relates to a harmless rapid pure physical treatment method suitable for cow dung.
Background
With the development of the large-scale and intensive cattle breeding industry, the problem of environmental pollution caused by concentrated discharge of excrement in cattle farms is increasingly prominent. The cow dung is a biomass resource and contains a large amount of mineral elements and rich nutrient substances, so that the cow dung can be returned to the field after harmless treatment, is beneficial to improving soil fertility, recovering farmland ecology and improving farmland productivity, and has important significance for guaranteeing agricultural sustainable development.
At present, cow dung is generally treated by a traditional composting method, the treatment method has a long period, and odor is generated in the composting process to pollute the environment.
For this reason, there have been also studies on the related art for rapidly treating cow dung. The patent of application number 2020105414418 provides a method for quickly fertilizing cow dung, the method of the invention realizes harmless and recycling of cow dung, the technology quickly treats fresh cow dung through a strong oxidant to prepare an organic fertilizer rich in humic acid and fulvic acid, and then nano clay and biochar are added to form a slow-release organic fertilizer.
However, the chemical treatment method has problems of complicated operation and relatively high treatment cost. In addition, the method of adopting technologies such as rapid aerobic fermentation and the like for treatment has the problems of high treatment energy consumption, air pollution, insufficient fermentation, returning to field and seedling burning of the produced products, and the like, so that how to research the method for efficiently, rapidly and harmlessly treating the cow dung is particularly important.
Disclosure of Invention
The invention aims to provide a harmless rapid pure physical treatment method suitable for cow dung, and solves the technical problems of complex operation and relatively high treatment cost of the conventional chemical treatment method for treating cow dung.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a harmless rapid pure physical treatment method suitable for cow dung comprises the following steps: collecting and crushing pretreatment, namely collecting cow dung and crushing the collected cow dung;
step two, vacuum drying treatment, namely adding the cow dung crushed in the step one into a vacuum drying device for vacuum drying operation, and generating waste liquid and drying and discharging;
and step three, mixing treatment, namely mixing the dried discharged material generated in the step two with EM (effective microorganisms) or other beneficial bacteria powder, and simultaneously enabling the dried discharged material to be used as a basic material in machine fertilizer processing.
Optionally, in the first step, the long materials of the forage contained in the cow dung are crushed to be within 1-2 cm.
Optionally, water contained in the cow dung in the step two is dried and evaporated to form waste liquid which can reach the standard and be discharged, and the dried material can be used as an organic matrix directly returned to the field.
Optionally, the dried material discharged in the third step can be mixed with other materials to prepare organic fertilizer.
Optionally, the vacuum drying device adopts a heat pump type high-temperature steam vacuum dryer, and the temperature of a heat source provided by the heat pump type high-temperature steam vacuum dryer for the drying body part is not more than 150 ℃.
Optionally, the temperature of the cow dung contacting part in the drying chamber of the vacuum drying device is 50-90 ℃ so as to reduce the organic matter component in cow dung damaged by high temperature.
Optionally, in the drying process, the vacuum drying device continuously extracts vacuum in the drying chamber, and when moisture in the cow dung is rapidly extracted under the vacuum condition, germs, worm eggs, grass seeds and the like contained in the cow dung raw materials are inactivated through vacuum.
Optionally, the moisture content of the dried discharged material can be controlled between 10% and 30% according to the use and storage requirements.
Optionally, the discharged material with the water content of 20-30% is suitable for returning to the field in a short time, or is mixed with other dry materials to form an organic matrix material with the water content of below 20%, the organic matrix material can be stored for a long time, and the discharged material with the water content of below 20% can be stored for a long time.
Optionally, the dried material is mixed with beneficial bacteria powder or EM bacteria powder and then returned to the field for use.
The embodiment of the invention has the following beneficial effects:
the method for treating the cow dung is a pure physical treatment mode, has simple and efficient treatment process and low energy consumption, the product is an organic matrix subjected to sterilization and deinsectization treatment, organic matters beneficial to soil and various medium and trace elements in cow dung waste gas are retained to the maximum extent, and the aim of recycling the cow dung is fulfilled.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment of the present invention.
Wherein the figures include the following reference numerals:
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Referring to fig. 1, in this embodiment, a harmless fast physical treatment method for cow dung is provided, which includes the following steps: collecting and crushing pretreatment, namely collecting cow dung and crushing the collected cow dung;
step two, vacuum drying treatment, namely adding the cow dung crushed in the step one into a vacuum drying device for vacuum drying operation, and generating waste liquid and drying and discharging;
and step three, mixing treatment, namely mixing the dried discharged material generated in the step two with EM (effective microorganisms) or other beneficial bacteria powder, and simultaneously enabling the dried discharged material to be used as a basic material in machine fertilizer processing.
In the first step of this example, the relatively long forage material in the cow dung is crushed to within 1-2 cm.
In the second step of this embodiment, the water contained in the cow dung is dried and evaporated to obtain a waste liquid that can reach the standard for discharge, and the dried and discharged material can be used as an organic substrate to be returned to the field directly.
In the third step of this embodiment, the dried material may be mixed with other materials to produce organic fertilizer.
The vacuum drying apparatus of the present embodiment employs a heat pump type high temperature steam vacuum dryer which provides a heat source temperature of not more than 150 degrees to the drying body part.
The temperature of the cow dung contacting part in the drying chamber of the vacuum drying device of the embodiment is 50-90 ℃ so as to reduce the organic matter component in cow dung damaged by high temperature.
In the drying process, the vacuum drying device continuously extracts vacuum in the drying chamber, quickly extracts moisture in the cow dung under the vacuum condition, and simultaneously inactivates germs, worm eggs, grass seeds and the like contained in the cow dung raw materials through vacuum.
The moisture content of the dried discharged material in the embodiment can be controlled between 10% and 30% according to the use and storage requirements.
The discharged material with the water content of 20-30% in the embodiment is suitable for returning to the field for use in a short time, or is mixed with other dry materials to form an organic matrix material with the water content of below 20%, and can be stored for a long time, and the discharged material with the water content of below 20% can be stored for a long time.
The dry ejection of compact and beneficial fungus powder or EM fungus powder of this embodiment mixes the back, returns the field and uses.
The method for treating the cow dung is a pure physical treatment mode, has simple and efficient treatment process and low energy consumption, the product is an organic matrix subjected to sterilization and deinsectization treatment, organic matters beneficial to soil and various medium and trace elements in cow dung waste gas are retained to the maximum extent, and the aim of recycling the cow dung is fulfilled.
The above embodiments may be combined with each other.
It should be noted that in the description of the present specification, descriptions such as "first", "second", etc. are only used for distinguishing features, and do not have an actual order or meaning, and the present application is not limited thereto.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A harmless rapid pure physical treatment method suitable for cow dung is characterized by comprising the following steps: collecting and crushing pretreatment, namely collecting cow dung and crushing the collected cow dung;
step two, vacuum drying treatment, namely adding the cow dung crushed in the step one into a vacuum drying device for vacuum drying operation, and generating waste liquid and drying and discharging;
and step three, mixing treatment, namely mixing the dried discharged material generated in the step two with EM (effective microorganisms) or other beneficial bacteria powder, and simultaneously enabling the dried discharged material to be used as a basic material in the processing of the machine fertilizer.
2. The method for harmless rapid physical purification of cow dung according to claim 1, wherein in the first step, the relatively long material of forage contained in cow dung is crushed to within 1-2 cm.
3. A harmless rapid physical processing method suitable for cow dung according to claim 1, wherein in the second step, water contained in cow dung is dried and evaporated to obtain waste liquid which can reach the standard and be discharged, and the dried material can be used as organic matrix which is directly returned to the field.
4. A harmless rapid physical processing method suitable for cow dung as claimed in claim 1, wherein the dry discharge in step three can be mixed with other materials to make organic fertilizer.
5. A harmless rapid physical processing method for cow dung according to claim 1, wherein the vacuum drying apparatus is a heat pump type high temperature steam vacuum dryer, and the heat pump type high temperature steam vacuum dryer supplies heat source temperature not more than 150 degrees to the drying body part.
6. A harmless rapid physical processing method suitable for cow dung according to claim 5, wherein the temperature of the portion of the drying chamber of the vacuum drying device contacting cow dung is 50-90 ℃ to reduce the organic matter component in cow dung from being destroyed by high temperature.
7. The method as claimed in claim 1, wherein the vacuum drying apparatus continuously vacuumizes the drying chamber during the drying process, rapidly vacuumizes the water in the cow dung, and simultaneously inactivates germs, eggs, grass seeds, etc. contained in the cow dung material by vacuum.
8. A harmless rapid physical processing method suitable for cow dung according to claim 7, wherein the water content of the dried discharge material can be controlled between 10% and 30% according to the use and storage requirements.
9. A harmless rapid pure physical processing method suitable for cow dung as claimed in claim 1, wherein the discharged material with moisture content of 20% -30% is suitable for returning to field in a short time, or is mixed with other dry materials to form an organic matrix material with moisture content below 20%, which can be stored for a long time, and the discharged material with moisture content below 20% can be stored for a long time.
10. A harmless rapid physical processing method suitable for cow dung according to claim 1, wherein the dry discharged material is mixed with the beneficial bacteria powder or EM bacteria powder and then returned to the field for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211242821.7A CN115504816A (en) | 2022-10-11 | 2022-10-11 | Harmless rapid pure physical treatment method suitable for cow dung |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211242821.7A CN115504816A (en) | 2022-10-11 | 2022-10-11 | Harmless rapid pure physical treatment method suitable for cow dung |
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| CN115504816A true CN115504816A (en) | 2022-12-23 |
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| CN202211242821.7A Pending CN115504816A (en) | 2022-10-11 | 2022-10-11 | Harmless rapid pure physical treatment method suitable for cow dung |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2145587C1 (en) * | 1997-09-10 | 2000-02-20 | ТОО Научно-экспертное общество "Эльтрон" | Method of poultry manure processing and product of processing |
| CN101161292A (en) * | 2006-10-10 | 2008-04-16 | 齐梓凡 | An apparatus for rapid drying and processing ordure |
| CN102515897A (en) * | 2011-12-19 | 2012-06-27 | 邱德文 | Dry cow dung powder organic fertilizer, preparation method thereof and application thereof |
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2022
- 2022-10-11 CN CN202211242821.7A patent/CN115504816A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2145587C1 (en) * | 1997-09-10 | 2000-02-20 | ТОО Научно-экспертное общество "Эльтрон" | Method of poultry manure processing and product of processing |
| CN101161292A (en) * | 2006-10-10 | 2008-04-16 | 齐梓凡 | An apparatus for rapid drying and processing ordure |
| CN102515897A (en) * | 2011-12-19 | 2012-06-27 | 邱德文 | Dry cow dung powder organic fertilizer, preparation method thereof and application thereof |
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