CN108178672A - A kind of hoisting type composting device - Google Patents
A kind of hoisting type composting device Download PDFInfo
- Publication number
- CN108178672A CN108178672A CN201810174502.4A CN201810174502A CN108178672A CN 108178672 A CN108178672 A CN 108178672A CN 201810174502 A CN201810174502 A CN 201810174502A CN 108178672 A CN108178672 A CN 108178672A
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- Prior art keywords
- retort
- composting device
- hoisting type
- type composting
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009264 composting Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims description 49
- 238000005422 blasting Methods 0.000 claims description 8
- 241000628997 Flos Species 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000002361 compost Substances 0.000 abstract description 36
- 238000000855 fermentation Methods 0.000 abstract description 31
- 230000004151 fermentation Effects 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 12
- 239000002910 solid waste Substances 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 238000003756 stirring Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Manufacturing & Machinery (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to composting device technical fields, and in particular to a kind of hoisting type composting device.There are occupation area of equipment is big, compost treatment effect is poor during in order to solve the problem of to carry out organic solid waste using existing composting device compost treatment, the invention discloses a kind of hoisting type composting devices.The device includes retort and lift unit；The top of the retort is equipped with feed inlet, and the bottom of the retort is equipped with discharge port；The lift unit is located at the top of the retort, and the promotion end of the lift unit stretches into the inside of the retort and vertically extends to the bottom of the retort.The hoisting type composting device of the present invention, not only processing cost is low, floor space is small, Energy in use is low, but also can greatly improve compost fermentation treatment effect.
Description
Technical field
The invention belongs to composting device technical fields, and in particular to a kind of hoisting type composting device.
Background technology
With being continuously increased of China's urban population, economic fast development, the quickening of urbanization process, have more and more
Solid waste needs timely and effectively handled.Wherein, aerobic compost technology is most widely used organic solid waste
Biologic treating technique can make debirs be converted into stable organic fertilizer or humus, and can be in high temperature using composting device
Pathogenic bacteria are killed during fermentation and meet innoxious requirement, compost final product is applied to agriculture and forestry as organic fertilizer or soil conditioner
Plantation, soil remediation etc., recycle organic matter circling.
Wherein, a kind of organic solid castoff heap is disclosed in the Chinese patent of Patent No. ZL201521083288.X
Fertile fermentation cabin and compost reactor.Compost reactor in the patent is set using horizontal type structure in closed fermentation cabin
There is the agitating device for connecting inlet and outlet in the horizontal direction, water is carried out to the material in fermentation cabin by the rotation of agitating device
Square to conveying, material is gradually pushed into outlet port, and pass through agitating device pair in the process by entrance location
Material is stirred overturning, improves the compost fermentation processing speed to material.Although the compost reactor can be completed effectively
Processing to organic solid waste, still, the compost reactor use horizontal type structure, exist take up a large area, site space profit
With rate it is low the problem of, and since the material conveying in fermentation cabin and stirring is completed by agitating device, so if stirring speed
Degree is big, can improve conveying speed, but can not ensure ferment effect；If mixing speed is small, it is ensured that ferment effect, but drop
Low fermentation efficiency, so as to there are ferment effect it is poor the problem of.
Invention content
During in order to solve to carry out compost treatment to organic solid waste using existing composting device, there are occupation area of equipment
Greatly, the problem of compost treatment effect is poor, the present invention propose a kind of hoisting type composting device.The device includes retort and promotion
Unit；The top of the retort is equipped with feed inlet, and the bottom of the retort is equipped with discharge port；The lift unit is located at institute
The top of retort is stated, the promotion end of the lift unit stretches into the inside of the retort and vertically extends to institute
The bottom of retort is stated, the bottoms material of the retort is vertically promoted to the upper strata of the retort.
Preferably, the lift unit uses screw conveyor, wherein the motor of the screw conveyor be fixed on it is described
The top of retort, the input end of the screw conveyor vertically extend to the bottom of the retort, the spiral transferring
Send machine the port of export be located at the retort inside topside position.
Preferably, the retort includes inner cylinder and outer barrel, and between the inner cylinder and the outer barrel
Equipped with insulating layer.
Preferably, it is additionally provided with foul smell collection port at the top of the retort.
Preferably, the lower half portion of the inside of the retort is pyramidal structure, and the discharge port position is equipped with spiral shell
Revolve conveyer.
It is further preferred that the bottom of the retort is equipped with percolate floss hole.
Preferably, which further includes blasting unit；The blasting unit includes supervisor, branch pipe and ring pipe, wherein institute
Supervisor to be stated to connect with air source, the ring pipe is located at the inside of the retort and venthole is equipped on the ring pipe,
One end of the branch pipe is connected with the supervisor, and the other end is connected with the ring pipe.
It is further preferred that valve is equipped on the branch pipe, for adjusting the throughput by the branch pipe.
It is further preferred that the blasting unit includes multiple branch pipes and multiple ring pipes；Multiple rings
Shape pipe is arranged along the short transverse of the retort, and is connected by independent branch pipe with the supervisor.
It is further preferred that the venthole is along the circumferential direction distributed on the ring pipe, and the venthole
Direction is vertically downward.
The hoisting type composting device of the present invention has the advantages that compared with existing compost reactor：
First, hoisting type composting device of the invention is internally provided with promotion list using tridimensional structure and in retort
Member can not only reduce the blade diameter length ratio of entire composting device in this way, thus when realizing that the compost fermentation to same amount material is handled,
The floor space of equipment can be substantially reduced, improves the utilization rate to site space, and after material enters retort at this time, with
Tank can gradually be dropped down onto automatically under its own gravity by the progress of fermentation process and the discharge to tank bottom material, material
Near bottom, i.e. discharge port position, being located at the lift unit inside retort so only needs to meet mixing to material i.e.
Can, the effect conveyed to material is eliminated, so as to effectively control fermentation process, ensures the compost fermentation effect to material
Fruit.
Second, screw conveyor is selected in the present invention as lift unit, and utilizes helical-blade in screw conveyor
The lifting force that piece itself rotation generates carries out hoisting type to material in tank and is mixed up and down.At this point, with convention stir device phase
Compare, i.e., compared with blade type stirrer, the lifting force generated by the rotation of rotating vane itself circumferencial direction is to tank body
The promotion of the decomposed material progress vertical direction of fermentation is completed in bottom, so as to carry out the mixing of material.In this way, it can reduce
Requirement to power of motor and blade construction intensity, wherein in the case where handling identical material, with blade type stirrer
The compare power of motor of the present invention program of power of motor can be reduced to 25%, so as to greatly reduce the manufacture cost of equipment with
And Energy in use, and when to decomposed material and fresh material be mixed up and down by screw conveyor, Ke Yitong
When the function bacterium in decomposed material promoted and mixed with fresh material, increase function bacterium in fresh material and contain
Amount improves the efficiency of compost fermentation processing.
Third, in the present invention by setting screw conveyor, corruption that not only can be to being generated in retort in discharge port
Ripe material carries out automatic decimation, improves efficiency and the automation of compost treatment, and can ensure the leakproofness of retort, prevents
Only there is the spilling of foul smell during discharging, so as to improve the protection to operating environment around.
4th, in the present invention by retort different location ring pipe is set, and by independent branch pipe and
Valve is connected with supervisor, is precisely controlled so as to fulfill to different location oxygenation in retort, is improved the utilization rate of oxygen, is ensured
Accurate progress of the compost fermentation in each stage, and then final compost fermentation effect is improved, shorten composting cycle, reduce energy
Consumption.
Description of the drawings
Fig. 1 is the structure diagram of hoisting type composting device of the present invention.
Specific embodiment
Technical scheme of the present invention is further detailed in the following with reference to the drawings and specific embodiments.
With reference to shown in Fig. 1, hoisting type composting device of the invention, including retort 1 and lift unit 2.Wherein, retort
1 is sealed construction, and is equipped with feed inlet 11, for adding materials to the inside of retort 1, example at the top of retort 1
Such as organic solid waste, discharge port 12 is equipped in the bottom of retort 1, for the decomposed heap that compost fermentation processing obtains will to be passed through
Fertilizer is discharged.Lift unit 2 is located at the top of retort 1, and axis side of the promotion end of lift unit 2 along retort 1
To stretching into the inside of retort 1, and extend to the bottom of retort 1.At this point, reaction can will be located at by lift unit 2
The mixing up and down of 1 materials inside of retort is realized on upper strata inside the material lifting to retort 1 of 1 bottom of tank.
Hoisting type composting device using the present invention carries out compost fermentation processing to materials such as solid waste, house refuses
When, the material inside retort 1 can not only be carried out using lift unit 2 being mixed up and down, 1 bottom of retort will be located at
Decomposed material by certain time compost treatment carries out being mixed up and down with the fresh material newly added in as inoculum, from
And compost fermentation processing is carried out to fresh material using function bacterium existing in decomposed material, the efficiency of compost treatment is improved,
And by the way that lift unit 2 is arranged vertically along the axis direction of retort 1, so as to be substantially reduced entire compost dress
The blade diameter length ratio put reduces the floor space of equipment, improves the utilization rate to site space.
In the present embodiment, lift unit 2 selects screw conveyor.Wherein, the driving motor part of screw conveyor is consolidated
Dingan County is mounted in the top of retort 1, and the input end of screw conveyor vertically extends to the bottom of retort 1, helical feed
The port of export of machine is located at the top half position of the inside of retort 1.In this way, it is carried out by screw conveyor by helical blade
The vertical direction lifting force that the rotation of small range circumferencial direction generates, not only can directly carry the decomposed material of 1 bottom of retort
The upper strata of retort 1 is risen to, the material inside retort 1 is carried out to be mixed, and in fresh material and decomposed object up and down
When material is directly mixed, can function bacterium existing in decomposed material be promoted and mixed with fresh material simultaneously
It closes, increases the content of function bacterium in fresh material, improve the efficiency of compost fermentation processing.
Preferably, in the present embodiment, the tank skin of retort 1 uses double-layer structure, including outer barrel 13 and inner cylinder 14.
Outer barrel 13 is square cylinder and its head cover is completely sealed structure, and inner cylinder 14 is similarly square structure, and in inner cylinder
Insulating layer is equipped between body 14 and outer barrel 13.The inside fermentation temperature of retort 1 can be kept the temperature by insulating layer, from
And ensure that stablizing for entire compost fermentation processing procedure carries out, ensure the effect of compost treatment.
It is further preferred that inner cylinder 14 uses rectangular cone structure, i.e. the bottom of inner cylinder 14 is pyramidal structure, and
Discharge port 12 is located at conical section.In this way, it can be carried out automatically to being located at material of 1 bottom of retort by compost fermentation processing
Summarize collection, consequently facilitating being discharged by discharge port 12 to decomposed material, while lift unit 2 can be ensured to decomposed object
Effective promotion of material.
In addition, in the present embodiment, screw conveyor is equipped in 12 position of discharge port, for the corruption inside retort 1
Ripe material is extracted automatically.Wherein, the installation site of screw conveyor, angle of inclination and development length can be according to scenes
Actual conditions carry out free adjusting.At this point, can not only realize the self-emptying to decomposed material by screw conveyor, improve
The efficiency and convenience of compost treatment, but also can ensure the leakproofness of retort 1, prevent foul smell occur during discharging
Spilling, so as to improve the protection to operating environment around.
At the same time, be additionally provided with a foul smell collection port 15 in the top position of retort 1, for at extraneous foul smell
Reason equipment is attached.In this way, the foul smell that 1 inside of retort generates can effectively be discharged by foul smell collection port 15
Processing, so as to reduce the pollution to outside air.Percolate floss hole 16 is equipped in the bottom of retort 1, for sending out compost
The percolate generated in ferment processing procedure carries out unified collection processing.
In addition, with reference to shown in Fig. 1, hoisting type composting device of the invention, including blasting unit 3.Blasting unit 3 includes master
Pipe 31, branch pipe 32 and ring pipe 33, wherein the outside that supervisor 31 is located at retort 1 is connect with extraneous air source；Ring pipe 33 is located at
The inside of retort 1, and multiple ventholes 331 are equipped on ring pipe 33；Branch pipe 32 runs through the tank skin of retort 1, one end
It is connected with supervisor 31, the other end is connected with ring pipe 33.In this way, by branch pipe 32 by the air delivery being responsible in 31 to ring pipe
It in 33, and then is filled in retort 1 by venthole 331, provides oxygen to the compost fermentation processing in tank, ensure compost fermentation
Processing is normally carried out.
In the present embodiment, blasting unit 3 is set there are four branch pipe 32 and four ring pipes 33.Wherein, four ring pipes 33
It is distributed on the inside of retort 1 along the short transverse of tank body, and being connected with supervisor 31 independently by four branch pipes 32.
In this way, it is supplied by the sufficient of oxygen in setting ring pipe 33 that can ensure to composting fermentation process in tank interior different location
Should, especially coordinate lifting device 2 use, after the material lifting to upper strata of 1 bottom of retort, can again in tank body
The oxygen in portion carries out coming into full contact with mixing, so as to ensure that material the demand of oxygen is kept away in compost fermentation processing procedure
Exempt from anaerobic digestion occur, improve the effect of compost fermentation processing and reduce the generation of foul smell.
In addition, an independent valve 321 is additionally provided on each branch pipe 32, for the air-flow by the branch pipe 32
Amount carries out separately adjustable control.At this point it is possible to precisely supplied oxygen to the demand of oxygen according to different location in tank body, i.e. root
According to the different accurate adjustment for carrying out amount of oxygen of fermentation stage residing for material in tank, so as to ensure entire composting fermentation process
Efficiently, high quality carries out.
In addition, in the present embodiment, venthole 331 is evenly arranged along the circumferencial direction of ring pipe 33, and venthole 331
Opening direction vertically downward.In this way, residence time of the oxygen in tank interior can be extended, increase contact of the oxygen with material
Time improves compost fermentation effect.
Claims (10)
1. a kind of hoisting type composting device, which is characterized in that including retort and lift unit；The top of the retort is equipped with
Feed inlet, the bottom of the retort are equipped with discharge port；The lift unit is located at the top of the retort, described to promote list
The promotion end of member stretches into the inside of the retort and vertically extends to the bottom of the retort, by the reaction
The bottoms material of tank is vertically promoted to the upper strata of the retort.
2. hoisting type composting device according to claim 1, which is characterized in that the lift unit uses helical feed
Machine, wherein the motor of the screw conveyor is fixed on the top of the retort, the input end edge of the screw conveyor is perpendicular
For Nogata to the bottom for extending to the retort, the port of export of the screw conveyor is located at the upper strata position of the inside of the retort
It puts.
3. hoisting type composting device according to claim 1, which is characterized in that the retort includes inner cylinder and outer barrel
Body, and insulating layer is equipped between the inner cylinder and the outer barrel.
4. hoisting type composting device according to claim 1, which is characterized in that be additionally provided with foul smell at the top of the retort
Collection port.
5. hoisting type composting device according to claim 1, which is characterized in that the lower half portion of the inside of the retort
For pyramidal structure, and the discharge port position is equipped with screw conveyor.
6. hoisting type composting device according to claim 5, which is characterized in that the bottom of the retort is equipped with percolate
Floss hole.
7. the hoisting type composting device according to any one in claim 1-6, which is characterized in that the device further includes drum
Wind unit；The blasting unit includes supervisor, branch pipe and ring pipe, wherein the supervisor connect with air source, the ring pipe position
It is connected in the inside of the retort and on the ring pipe equipped with venthole, one end of the branch pipe with the supervisor,
The other end is connected with the ring pipe.
8. hoisting type composting device according to claim 7, which is characterized in that valve is equipped on the branch pipe, is used for
Adjust the throughput by the branch pipe.
9. hoisting type composting device according to claim 7, which is characterized in that the blasting unit includes multiple branch
Pipe and multiple ring pipes；Multiple ring pipes are arranged, and pass through independent branch along the short transverse of the retort
Pipe is connected with the supervisor.
10. hoisting type composting device according to claim 7, which is characterized in that the venthole is along the circumferential direction uniformly distributed
On the ring pipe, and the direction of the venthole is vertically downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174502.4A CN108178672A (en) | 2018-03-02 | 2018-03-02 | A kind of hoisting type composting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174502.4A CN108178672A (en) | 2018-03-02 | 2018-03-02 | A kind of hoisting type composting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108178672A true CN108178672A (en) | 2018-06-19 |
Family
ID=62553193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810174502.4A Pending CN108178672A (en) | 2018-03-02 | 2018-03-02 | A kind of hoisting type composting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108178672A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410571A (en) * | 2020-04-17 | 2020-07-14 | 江苏省农业科学院 | Vertical composting device |
| CN111732465A (en) * | 2020-07-31 | 2020-10-02 | 山东省农业科学院农业资源与环境研究所 | Vegetable waste composting and anaerobic digestion integrated device |
| CN112174709A (en) * | 2020-11-15 | 2021-01-05 | 易冬兵 | A fermenting installation for microbial manure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201634591U (en) * | 2010-03-11 | 2010-11-17 | 杨克俭 | One-step anaerobic dry fermentation device |
| CN203144305U (en) * | 2013-03-15 | 2013-08-21 | 德州创迪微生物资源有限责任公司 | Microbial fertilizer sterilization, inoculation and fermentation integrated device |
| CN205774159U (en) * | 2016-07-01 | 2016-12-07 | 朱桂良 | A kind of semi-automatic feeder pig manure fermented manure device |
| CN107353069A (en) * | 2017-08-29 | 2017-11-17 | 内蒙古科技大学 | A kind of methane/hydrogen coproduction organic fertilizer integration installation for fermenting and fermentation process |
| CN208038338U (en) * | 2018-03-02 | 2018-11-02 | 轻工业环境保护研究所 | A kind of hoisting type composting device |
-
2018
- 2018-03-02 CN CN201810174502.4A patent/CN108178672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201634591U (en) * | 2010-03-11 | 2010-11-17 | 杨克俭 | One-step anaerobic dry fermentation device |
| CN203144305U (en) * | 2013-03-15 | 2013-08-21 | 德州创迪微生物资源有限责任公司 | Microbial fertilizer sterilization, inoculation and fermentation integrated device |
| CN205774159U (en) * | 2016-07-01 | 2016-12-07 | 朱桂良 | A kind of semi-automatic feeder pig manure fermented manure device |
| CN107353069A (en) * | 2017-08-29 | 2017-11-17 | 内蒙古科技大学 | A kind of methane/hydrogen coproduction organic fertilizer integration installation for fermenting and fermentation process |
| CN208038338U (en) * | 2018-03-02 | 2018-11-02 | 轻工业环境保护研究所 | A kind of hoisting type composting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410571A (en) * | 2020-04-17 | 2020-07-14 | 江苏省农业科学院 | Vertical composting device |
| CN111732465A (en) * | 2020-07-31 | 2020-10-02 | 山东省农业科学院农业资源与环境研究所 | Vegetable waste composting and anaerobic digestion integrated device |
| CN111732465B (en) * | 2020-07-31 | 2024-06-04 | 山东省农业科学院农业资源与环境研究所 | Vegetable waste composting and anaerobic digestion integrated device |
| CN112174709A (en) * | 2020-11-15 | 2021-01-05 | 易冬兵 | A fermenting installation for microbial manure |
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Application publication date: 20180619 |
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