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CN110885261A - Fermentation production process of organic fertilizer - Google Patents

Fermentation production process of organic fertilizer Download PDF

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Publication number
CN110885261A
CN110885261A CN201911105242.6A CN201911105242A CN110885261A CN 110885261 A CN110885261 A CN 110885261A CN 201911105242 A CN201911105242 A CN 201911105242A CN 110885261 A CN110885261 A CN 110885261A
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China
Prior art keywords
raw materials
fermentation
organic fertilizer
fixedly connected
transmission
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CN201911105242.6A
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Chinese (zh)
Inventor
崔礼信
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Nanjing Sanmei Agricultural Development Co Ltd
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Nanjing Sanmei Agricultural Development Co Ltd
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Priority to CN201911105242.6A priority Critical patent/CN110885261A/en
Publication of CN110885261A publication Critical patent/CN110885261A/en
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a fermentation production process of an organic fertilizer, which comprises the following steps: adding the collected organic fertilizer solid raw materials into a special container, and adding clear water to dilute the solid raw materials for later use; adding the completely diluted organic fertilizer solid raw materials into a stirrer, scattering the condensed raw materials, filtering the scattered raw materials to obtain liquid for later use, and taking the scattered solid raw materials; adding the scattered solid raw materials into a drying separator, adding the large raw materials at the separation part into a crusher, and crushing the large raw materials until the raw materials are all small particles; adding the granular raw materials into the container again, adding the compound probiotic solution into the container, and properly increasing the humidity of the granular raw materials according to the water content of the granular raw materials; the processed solid organic fertilizer raw materials are added into a fermentation tank and fermented for 15 days, and the invention relates to the technical field of organic fertilizers. The fermentation production process of the organic fertilizer achieves the aims of reducing the fermentation process, reducing the labor force of workers and improving the fermentation efficiency and the fermentation quality.

Description

Fermentation production process of organic fertilizer
Technical Field
The invention relates to the technical field of organic fertilizers, in particular to a fermentation production process of an organic fertilizer.
Background
The organic fertilizer is mainly derived from plants and/or animals, and is a carbon-containing material which is applied to soil to provide plant nutrition as a main function. Is prepared from biological substances, animal and plant wastes and plant residues, eliminates toxic and harmful substances in the biological substances, and is rich in a large amount of beneficial substances, including: various organic acids, peptides and rich nutrient elements including nitrogen, phosphorus and potassium. The fertilizer not only can provide comprehensive nutrition for crops, but also has long fertilizer efficiency, can increase and update soil organic matters, promote microbial propagation, improve the physical and chemical properties and biological activity of soil, and is a main nutrient for green food production.
At present, organic fertilizer fermentation is usually in missed fermentation, gas generated by fermentation can pollute the surrounding environment and influence the quality of the living environment of people around, meanwhile, the organic fertilizer fermentation turning process is complicated, and the oxygenation coverage rate of the organic fertilizer fermentation is low, so that the fermentation time is prolonged.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a fermentation production process of an organic fertilizer, which solves the problems that the fermentation of the organic fertilizer is usually in a missed fermentation mode, the gas generated by the fermentation pollutes the surrounding environment and influences the quality of the living environment of surrounding people, meanwhile, the organic fertilizer fermentation turning process is complicated, the oxygenation coverage rate of the organic fertilizer fermentation is low, and the fermentation time is prolonged.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a fermentation production process of an organic fertilizer comprises the following steps:
step one, adding the collected organic fertilizer solid raw materials into a special container, adding an equal amount of clear water into the container, and diluting the solid raw materials for later use;
step two, adding the completely diluted organic fertilizer solid raw materials into a stirrer, scattering the condensed raw materials, filtering the scattered raw materials into liquid for later use, and taking the scattered solid raw materials;
step three, adding the scattered solid raw materials into a drying separator, separating small raw materials for later use, adding large raw materials at the separated position into a grinder, and grinding the large raw materials until the raw materials are all small particles;
step four, adding the granular raw materials into the container again, adding the composite probiotic solution into the container while uniformly stirring, and then properly increasing the humidity of the granular raw materials according to the water content of the granular raw materials;
and step five, adding the processed solid organic fertilizer raw materials into a fermentation tank, fermenting for 15 days, turning and filling oxygen once every 1 day until fermentation is completed, and processing the liquid fertilizer by the residual filtered liquid in the step two.
Preferably, the dilution time of the solid raw material in the step one is 20 to 24 hours.
Preferably, the organic fertilizer solid raw materials and the liquid are added into the stirrer together in the step two.
Preferably, the diameter of the small raw material particles in the third step is 5-6 cm.
Preferably, in the fourth step, a proper amount of the liquid filtered in the second step can be added into the granular raw material, and the humidity is adjusted to be about 45-60%.
Preferably, the fermentation tank comprises a fermentation storage tank, a feed inlet is arranged at the top end of the interior of the fermentation storage tank, a discharge tank is arranged at the middle position of the bottom of the fermentation storage tank, a transmission channel is fixedly connected to the right side of the interior of the fermentation storage tank, a transmission rotating shaft is connected to the interior of the transmission channel in a penetrating and rotating manner, a transmission spiral sheet is fixedly connected to the surface of the transmission rotating shaft, which is located inside the transmission channel, a transmission feed inlet is arranged at the bottom of the left side of the transmission channel, a discharge guide plate is communicated with the position, which is close to the upper side, of the left side of the transmission channel, the output end of the discharge guide plate extends to the left side of the interior of the fermentation storage tank, a high-pressure air pump is fixedly connected to the position, which is close to the upper side, and an oxygen explosion inner pipe, the output of high pressure air pump with explode oxygen inner tube intercommunication, the fermentation is accomodate the position intercommunication that the groove left side is close to the top and is had odor treatment purification groove.
Preferably, the fermentation is accomodate the groove left side and is close to the position of below and runs through and rotate and be connected with the transmission and link the axle, the transmission links the right-hand member fixedly connected with pushing ram that the axle is located the fermentation and accomodates inslot portion, the transmission links the even fixedly connected with puddler in surface that the axle is located the fermentation and accomodates inslot portion.
Preferably, the fermentation is accomodate the outside left side fixedly connected with second motor in groove, the output fixedly connected with driving gear of second motor, the left side axle center fixedly connected with driven gear of transmission even axle department, driven gear and driving gear meshing are connected.
Preferably, the top end of the outside of the fermentation accommodating groove is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a driving rotating wheel.
Preferably, the top axle center department fixedly connected with driven runner of transmission pivot, driven runner passes through the belt and is connected with the transmission of initiative runner.
(III) advantageous effects
The invention provides a fermentation production process of an organic fertilizer. The method has the following beneficial effects:
the fermentation production process of the organic fertilizer comprises the steps of adding the collected organic fertilizer solid raw materials into a special container, adding an equal amount of clear water into the container, and diluting the solid raw materials for later use; adding the completely diluted organic fertilizer solid raw materials into a stirrer, scattering the condensed raw materials, filtering the scattered raw materials to obtain liquid for later use, and taking the scattered solid raw materials; adding the scattered solid raw materials into a drying separator, separating small blocks of raw materials for later use, adding large blocks of raw materials at the separation part into a crusher, and crushing the large blocks of raw materials until the raw materials are uniformly formed into small blocks of particles; adding the granular raw materials into the container again, adding the composite probiotic solution into the container while uniformly stirring, and then properly increasing the humidity of the granular raw materials according to the water content of the granular raw materials; add the fermentation cylinder with the fertile solid raw material of machine that processing was accomplished, the raw materials gets into from the feed inlet, first motor work drives the transmission pivot and rotates, thereby the transmission flight drives the raw materials of fermentation storage tank bottom and penetrates in the transmission passageway from the transmission feed inlet, discharge from ejection of compact draw plate again, high-pressure air pump work, thereby spout aerobic air from exploding the oxygen inner tube and oxygenate, second motor work drives transmission connecting shaft and rotates, thereby puddler stirring raw materials, the propelling movement wheel propelling movement raw materials right simultaneously, guarantee that the raw materials can get into from the transmission feed inlet, 15 days of fermentation, turn over the heap during every 1 day and fill oxygen once, until accomplishing the fermentation, remaining filtration liquid carries out liquid fertilizer processing, reached and reduced the fermentation flow, alleviate workman's labour, the purpose of improvement fermentation efficiency and fermentation quality.
Drawings
FIG. 1 is a schematic view of a fermenter according to the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention.
In the figure: the device comprises a fermentation storage tank 1, a feeding hole 2, a discharging groove 3, a transmission channel 4, a transmission rotating shaft 5, a transmission spiral plate 6, a transmission feeding hole 7, a discharging guide plate 8, a high-pressure air pump 9, an oxygen explosion inner pipe 10, an odor treatment purification tank 11, a transmission connecting shaft 12, a material pushing wheel 13, a stirring rod 14, a second motor 15, a driving gear 16, a driven gear 17, a first motor 18, a driving rotating wheel 19, a driven rotating wheel 20 and a belt 21.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a fermentation production process of an organic fertilizer comprises the following steps:
step one, adding the collected organic fertilizer solid raw materials into a special container, adding an equal amount of clear water into the container, and diluting the solid raw materials for later use;
step two, adding the completely diluted organic fertilizer solid raw materials into a stirrer, scattering the condensed raw materials, filtering the scattered raw materials into liquid for later use, and taking the scattered solid raw materials;
step three, adding the scattered solid raw materials into a drying separator, separating small raw materials for later use, adding large raw materials at the separated position into a grinder, and grinding the large raw materials until the raw materials are all small particles;
step four, adding the granular raw materials into the container again, adding the composite probiotic solution into the container while uniformly stirring, and then properly increasing the humidity of the granular raw materials according to the water content of the granular raw materials;
and step five, adding the processed solid organic fertilizer raw materials into a fermentation tank, fermenting for 15 days, turning and filling oxygen once every 1 day until fermentation is completed, and processing the liquid fertilizer by the residual filtered liquid in the step two. The dilution time of the solid raw material in the step one is 20-24 hours. And in the second step, the organic fertilizer solid raw materials and the liquid are added into the stirrer together. In the third step, the diameter of the small raw material particles is 5-6 cm. In the fourth step, a proper amount of the liquid filtered in the second step can be added into the granular raw material, and the humidity is adjusted to be about 45-60%.
The fermentation tank comprises a fermentation accommodating groove 1, a feed inlet 2 is arranged at the top end inside the fermentation accommodating groove 1, a discharge groove 3 is arranged at the middle position of the bottom of the fermentation accommodating groove 1, a transmission channel 4 is fixedly connected at the right side inside the fermentation accommodating groove 1, a transmission rotating shaft 5 is connected inside the transmission channel 4 in a penetrating and rotating manner, a transmission spiral sheet 6 is fixedly connected to the surface of the transmission rotating shaft 5 positioned inside the transmission channel 4, a transmission feed inlet 7 is arranged at the bottom of the left side of the transmission channel 4, a discharge guide plate 8 is communicated at the left side of the transmission channel 4 and close to the upper side, the output end of the discharge guide plate 8 extends to the left side inside the fermentation accommodating groove 1, a high-pressure air pump 9 is fixedly connected at the position outside the fermentation accommodating groove 1 and close to the upper side, an oxygen explosion inner tube 10 is fixedly connected at the left side inside the fermentation accommodating groove 1 and below the discharge guide plate 8, and, an odor treatment purification tank 11 is connected to the left side of the fermentation storage tank 1 near the upper part. The position that the left side of fermentation storage tank 1 is close to the below runs through and is connected with transmission even axle 12 in a rotating way, and transmission even axle 12 is located the fermentation storage tank 1 inside right-hand member fixedly connected with pushing ram 13 of inside, and transmission even axle 12 is located the fermentation storage tank 1 inside surperficial fixedly connected with puddler 14. The left side outside fermentation storage tank 1 is fixedly connected with second motor 15, and the output fixedly connected with driving gear 16 of second motor 15, and the left side axle center department fixedly connected with driven gear 17 of transmission connecting shaft 12, driven gear 17 and driving gear 16 meshing are connected. The top end outside the fermentation accommodating groove 1 is fixedly connected with a first motor 18, and the output end of the first motor 18 is fixedly connected with a driving rotating wheel 19. The top axis of the transmission rotating shaft 5 is fixedly connected with a driven rotating wheel 20, and the driven rotating wheel 20 is in transmission connection with a driving rotating wheel 19 through a belt 21.
During the use, the raw materials gets into from feed inlet 2, 18 work of first motor drives transmission pivot 5 and rotates, thereby transmission flight 6 drives the fermentation and accomodates the raw materials of 1 bottom of groove and penetrate transmission channel 4 from transmission feed inlet 7 in, draw the board 8 to discharge from the ejection of compact again, high-pressure air pump 9 work, thereby spout aerobic air from exploding oxygen inner tube 10 and oxygenate, 15 work of second motor drives transmission even axle 12 and rotates, thereby puddler 14 stirring raw materials, the propelling movement raw materials of pusher wheel 13 right side simultaneously, guarantee that the raw materials can get into from transmission feed inlet 7.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The fermentation production process of the organic fertilizer is characterized by comprising the following steps of:
step one, adding the collected organic fertilizer solid raw materials into a special container, adding an equal amount of clear water into the container, and diluting the solid raw materials for later use;
step two, adding the completely diluted organic fertilizer solid raw materials into a stirrer, scattering the condensed raw materials, filtering the scattered raw materials into liquid for later use, and taking the scattered solid raw materials;
step three, adding the scattered solid raw materials into a drying separator, separating small raw materials for later use, adding large raw materials at the separated position into a grinder, and grinding the large raw materials until the raw materials are all small particles;
step four, adding the granular raw materials into the container again, adding the composite probiotic solution into the container while uniformly stirring, and then properly increasing the humidity of the granular raw materials according to the water content of the granular raw materials;
and step five, adding the processed solid organic fertilizer raw materials into a fermentation tank, fermenting for 15 days, turning and filling oxygen once every 1 day until fermentation is completed, and processing the liquid fertilizer by the residual filtered liquid in the step two.
2. The fermentation production process of the organic fertilizer as claimed in claim 1, which is characterized in that: the dilution time of the solid raw material in the step one is 20-24 hours.
3. The fermentation production process of the organic fertilizer as claimed in claim 1, which is characterized in that: and adding the organic fertilizer solid raw materials and the liquid into the stirrer together in the step two.
4. The fermentation production process of the organic fertilizer as claimed in claim 1, which is characterized in that: the diameter of the small raw material particles in the third step is 5-6 cm.
5. The fermentation production process of the organic fertilizer as claimed in claim 1, which is characterized in that: in the fourth step, a proper amount of the liquid filtered in the second step can be added into the granular raw materials, and the humidity is adjusted to be about 45-60%.
6. The fermentation production process of the organic fertilizer as claimed in claim 1, which is characterized in that: the fermentation tank comprises a fermentation storage tank (1), a feed inlet (2) is formed in the top end inside the fermentation storage tank (1), a discharge chute (3) is formed in the middle position of the bottom of the fermentation storage tank (1), a transmission channel (4) is fixedly connected to the right side inside the fermentation storage tank (1), a transmission rotating shaft (5) is connected to the inside of the transmission channel (4) in a penetrating and rotating mode, a transmission spiral piece (6) is fixedly connected to the surface of the transmission rotating shaft (5) located inside the transmission channel (4), a transmission feed inlet (7) is formed in the left bottom of the transmission channel (4), a discharge guide plate (8) is communicated to the position on the left side of the transmission channel (4) and close to the upper side, the output end of the discharge guide plate (8) extends to the left side inside the fermentation storage tank (1), and a high-pressure air pump (9) is fixedly connected to the position on the outside of the fermentation storage tank (1, fermentation is accomodate the inside left side of groove (1) and is located the below fixedly connected with of ejection of compact draw board (8) and explodes oxygen inner tube (10), the output of high pressure air pump (9) with explode oxygen inner tube (10) intercommunication, fermentation is accomodate groove (1) left side and is close to the position intercommunication of top and have odor treatment to purify groove (11).
7. The fermentation production process of the organic fertilizer as claimed in claim 6, which is characterized in that: the fermentation is accomodate groove (1) left side and is close to the position of below and runs through and rotate and be connected with transmission even axle (12), transmission even axle (12) are located the fermentation and accomodate right-hand member fixedly connected with stoking wheel (13) of groove (1) inside, transmission even axle (12) are located the fermentation and accomodate even fixedly connected with puddler (14) in surface of groove (1) inside.
8. The fermentation production process of the organic fertilizer as claimed in claim 7, which is characterized in that: the fermentation is accomodate outside left side fixedly connected with second motor (15) of groove (1), the output fixedly connected with driving gear (16) of second motor (15), the left side axle center fixedly connected with driven gear (17) of transmission even axle (12), driven gear (17) are connected with driving gear (16) meshing.
9. The fermentation production process of the organic fertilizer as claimed in claim 8, which is characterized in that: the top end outside the fermentation accommodating groove (1) is fixedly connected with a first motor (18), and the output end of the first motor (18) is fixedly connected with a driving rotating wheel (19).
10. The fermentation production process of the organic fertilizer as claimed in claim 9, which is characterized in that: the top axle center department fixedly connected with driven runner (20) of transmission pivot (5), driven runner (20) are connected with initiative runner (19) transmission through belt (21).
CN201911105242.6A 2019-11-13 2019-11-13 Fermentation production process of organic fertilizer Pending CN110885261A (en)

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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102060584A (en) * 2010-11-26 2011-05-18 云南云叶化肥股份有限公司 Fermentation technology for organic fertilizer
CN102093949A (en) * 2010-12-08 2011-06-15 江南大学 Multifunctional biological solid fermentation tank
CN202089969U (en) * 2011-03-22 2011-12-28 江苏康力生物科技发展有限公司 Aerator of biological fermentation tank
CN103667015A (en) * 2013-11-29 2014-03-26 麦行 Fermentation tank
CN103694007A (en) * 2013-11-18 2014-04-02 广西金穗生物科技有限责任公司 Double fermentation process for bio-organic fertilizer production
CN103739329A (en) * 2013-12-31 2014-04-23 稼禾生物股份有限公司 Method for producing novel organic fertilizer by fermenting plant straws
CN104261918A (en) * 2014-09-29 2015-01-07 青海绿杰特种养殖种植有限公司 Organic fertilizer fermentation method
CN205008377U (en) * 2015-09-01 2016-02-03 东阳市耐立电镀化工设备五金厂 Kitchen garbage resourceful treatment equipment
CN106045597A (en) * 2016-08-15 2016-10-26 陆开珍 Composting process for biological organic fertilizer
CN205820995U (en) * 2016-07-23 2016-12-21 山东丽沃得环保工程有限公司 Packaged type anaerobic treatment device
CN107523480A (en) * 2017-10-11 2017-12-29 曹茂娟 A kind of solar energy auxiliary heating type biogas quick reaction device
CN207011662U (en) * 2017-04-18 2018-02-16 滕州合易食品有限公司 A kind of batch plant being used in fermented feed
CN108569915A (en) * 2017-10-27 2018-09-25 江苏农牧科技职业学院 A kind of farm's livestock and poultry feces processing equipment
CN108623337A (en) * 2017-03-21 2018-10-09 张清秋 The manufacture craft of organic fertilizer is made in a kind of recycling house refuse
CN109206168A (en) * 2018-11-06 2019-01-15 占学宽 A kind of fermentation technology for organic fertilizer
CN209602350U (en) * 2019-02-27 2019-11-08 莱阳易农农牧设备有限公司 Slaughterhouse organic sludge fermentation machine

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102060584A (en) * 2010-11-26 2011-05-18 云南云叶化肥股份有限公司 Fermentation technology for organic fertilizer
CN102093949A (en) * 2010-12-08 2011-06-15 江南大学 Multifunctional biological solid fermentation tank
CN202089969U (en) * 2011-03-22 2011-12-28 江苏康力生物科技发展有限公司 Aerator of biological fermentation tank
CN103694007A (en) * 2013-11-18 2014-04-02 广西金穗生物科技有限责任公司 Double fermentation process for bio-organic fertilizer production
CN103667015A (en) * 2013-11-29 2014-03-26 麦行 Fermentation tank
CN103739329A (en) * 2013-12-31 2014-04-23 稼禾生物股份有限公司 Method for producing novel organic fertilizer by fermenting plant straws
CN104261918A (en) * 2014-09-29 2015-01-07 青海绿杰特种养殖种植有限公司 Organic fertilizer fermentation method
CN205008377U (en) * 2015-09-01 2016-02-03 东阳市耐立电镀化工设备五金厂 Kitchen garbage resourceful treatment equipment
CN205820995U (en) * 2016-07-23 2016-12-21 山东丽沃得环保工程有限公司 Packaged type anaerobic treatment device
CN106045597A (en) * 2016-08-15 2016-10-26 陆开珍 Composting process for biological organic fertilizer
CN108623337A (en) * 2017-03-21 2018-10-09 张清秋 The manufacture craft of organic fertilizer is made in a kind of recycling house refuse
CN207011662U (en) * 2017-04-18 2018-02-16 滕州合易食品有限公司 A kind of batch plant being used in fermented feed
CN107523480A (en) * 2017-10-11 2017-12-29 曹茂娟 A kind of solar energy auxiliary heating type biogas quick reaction device
CN108569915A (en) * 2017-10-27 2018-09-25 江苏农牧科技职业学院 A kind of farm's livestock and poultry feces processing equipment
CN109206168A (en) * 2018-11-06 2019-01-15 占学宽 A kind of fermentation technology for organic fertilizer
CN209602350U (en) * 2019-02-27 2019-11-08 莱阳易农农牧设备有限公司 Slaughterhouse organic sludge fermentation machine

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Application publication date: 20200317