CN108640455A - A kind of dewatered sludge aerobic fermentation device - Google Patents
A kind of dewatered sludge aerobic fermentation device Download PDFInfo
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- CN108640455A CN108640455A CN201810583635.7A CN201810583635A CN108640455A CN 108640455 A CN108640455 A CN 108640455A CN 201810583635 A CN201810583635 A CN 201810583635A CN 108640455 A CN108640455 A CN 108640455A
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- aerobic fermentation
- fermentation device
- head cover
- device ontology
- plc controller
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Dewatered sludge aerobic fermentation device solves existing filling and capping all-in-one machine in production, and cleaning is inconvenient, while consuming water resource and cleaning efficiency and low-quality problem are compared in cleaning.Include aerobic fermentation device ontology for it, the top of the aerobic fermentation device ontology is provided with head cover, side at the top of head cover is provided with first charging aperture, the PLC controller that middle part at the top of head cover is provided with, the display screen being provided with positioned at the side of PLC controller at the top of head cover, the other side at the top of head cover is provided with second charging aperture, and the bottom end of aerobic fermentation device ontology is provided with stir chamber.Structure of the invention is novel, it is skillfully constructed, material effectively can be stirred and be divulged information, the efficiency that sludge aerobic fermentation can be improved can prevent humidity and the relatively low influence to working efficiency of temperature, intelligence convenient, it can prevent pollution of the tail gas to ambient enviroment, simple and environmentally-friendly, energy conservation and environmental protection avoids the waste of waste heat.
Description
Technical field
The present invention relates to technical field of sludge treatment, more particularly, to a kind of dewatered sludge aerobic fermentation device.
Background technology
Traditional sludge processing method has 3 kinds：Burning, landfill and recycling.Foreign countries mostly use burning process, but invest
It is huge, easily cause atmosphere pollution；The country mostly uses landfill, but needs to occupy a large amount of soil, while can cause the secondary of environment
Pollution；The big and medium-sized cities soil such as domestic Shanghai regenerated resources are seldom, it is difficult to use this mode for a long time.And with microbiological treatment sludge
It has a extensive future, that is, utilizes microorganism aerobic to ferment, and existing sludge aerobic installation for fermenting efficiency is slower, the inadequate intelligence of fermentation process
Can, while the stink that distributes is easy the environment around pollution, and the waste heat after heating cannot be used appropriately, and can cause one
Fixed waste.
Invention content
For the above situation, to overcome the deficiencies of existing technologies, the present invention provides a kind of dewatered sludge aerobic fermentation device,
The existing sludge aerobic installation for fermenting efficiency of effective solution is slower, and fermentation process is not smart enough, while the stink distributed holds
Environment around easy to pollute, and the problem of waste heat after heating cannot be used appropriately, can cause certain waste.
To achieve the above object, the present invention provides the following technical solutions：The present invention includes aerobic fermentation device ontology, described
The top of aerobic fermentation device ontology is provided with head cover, and the side at the top of head cover is provided with first charging aperture, at the top of head cover in
The PLC controller that portion is provided with, the display screen being provided with positioned at the side of PLC controller at the top of head cover are another at the top of head cover
Side is provided with second charging aperture, and the bottom end of aerobic fermentation device ontology is provided with stir chamber, and being internally provided with for stir chamber is stirred
Motor is mixed, the top of stirring motor is connected with the agitating shaft positioned at aerobic fermentation device body interior, the outside connection of agitating shaft
There are stirring flabellum, the top of aerobic fermentation device body interior to be provided with humidity sensor, the side of humidity sensor is provided with
Temperature sensor, the side that the top of head cover is located at second charging aperture are provided with humidification mouth, and the top for the mouth that is humidified is connected with gas transmission
Pipe, the bottom end of appendix are connected with humidifier, and the both sides of aerobic fermentation device body interior are both provided with heater, aerobic fermentation
Control panel is provided on the outside of device body, input terminal and the alternating current of control panel are electrically connected, and the output end of control panel electrically connects
Connect humidity sensor, temperature sensor and stirring motor, humidity sensor and temperature sensor with the input terminal of PLC controller
It is electrically connected, the output end of PLC controller is electrically connected humidifier, display screen and heater；
The side that the top of the aerobic fermentation device ontology is located at first charging aperture is provided with tail gas discharging pipe, tail gas row
It puts and is provided with vent gas treatment case in the middle part of pipe, vent gas treatment case is internally provided with check valve, and the side of check valve is provided with work
Property charcoal filter layer, the side of activated carbon filter layer is provided with chemical filtering layer, and the low side of tail gas discharging pipe is connected with suction ventilator, inhales
The output end of wind turbine is connected with gas outlet, and the output end of control panel is electrically connected suction ventilator；
Thermoelectric conversion case, the outside setting of aerobic fermentation device ontology are provided on the outside of the aerobic fermentation device ontology
There is an absorber plate, the junction of thermoelectric conversion case and absorber plate is provided with heat-conducting plate, and the side of heat-conducting plate is connected with thermoelectricity development of evil in febrile disease device,
Side inside thermoelectric conversion case is provided with battery cavities, and battery cavities are internally provided with accumulator, and the output end of control panel is electrical
Thermoelectricity development of evil in febrile disease device is connected, thermoelectricity development of evil in febrile disease device is electrically connected accumulator by electric wire.
Preferably, the bottom end of the aerobic fermentation device ontology is provided with supporting rack, and supporting rack low side is provided with support leg.
Preferably, the low side of the humidifier is provided with holder, and the top of humidifier is provided with water filling port, water filling port it is outer
Side is provided with protection cap.
Preferably, the quantity of the stirring flabellum is six, and poke hole is offered on the outside of stirring flabellum, and poke hole is circle
Poke hole.
Preferably, it is connected through a screw thread between the water filling port and protection cap, protection cap is a kind of component of rubber material.
Preferably, it is connected by supporting rod between the PLC controller and head cover, the connection between supporting rod and head cover is
Welding.
Structure of the invention is novel, is skillfully constructed, material effectively can be stirred and be divulged information, can improve dirt
The efficiency of mud aerobic fermentation can prevent humidity and the relatively low influence to working efficiency of temperature, and intelligence is convenient, can prevent tail gas
Pollution to ambient enviroment, simple and environmentally-friendly, energy conservation and environmental protection avoid the waste of waste heat.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is three dimensional structure diagram of the present invention.
Fig. 2 is the mounting structure schematic diagram of stirring motor of the present invention.
Fig. 3 is the structural schematic diagram of vent gas treatment case of the present invention.
Fig. 4 is the structural schematic diagram of thermoelectric conversion case of the present invention.
Fig. 5 is humidifier structural schematic diagram of the present invention.
Specific implementation mode
1-5 is described in further details the specific implementation mode of the present invention below in conjunction with the accompanying drawings.
Embodiment one, is provided by Fig. 1, Fig. 2, Fig. 3 and Fig. 4, and the present invention includes aerobic fermentation device ontology 1, aerobic fermentation
The top of device body 1 is provided with head cover 2, and the side at 2 top of head cover is provided with first charging aperture 3, the other side at 2 top of head cover
It is provided with second charging aperture 6, by first charging aperture 3 and second charging aperture 6, is convenient for the entrance of material, aerobic fermentation device sheet
The bottom end of body 1 is provided with stir chamber 7, and stir chamber 7 is internally provided with stirring motor 8, and the top of stirring motor 8, which is connected with, to be located at
The outside of agitating shaft 9 inside aerobic fermentation device ontology 1, agitating shaft 9 is connected with stirring flabellum 10, after material input, leads to
It crosses control panel 36 and controls the work of stirring motor 8, the work of stirring motor 8 can drive agitating shaft 9 and stirring flabellum 10 to be rotated, i.e.,
Material effectively can be stirred and be divulged information, the efficiency of sludge aerobic fermentation, aerobic fermentation device sheet can be improved
Top inside body 1 is provided with humidity sensor 11, and the side of humidity sensor 11 is provided with temperature sensor 12, head cover 2
The side that top is located at second charging aperture 6 is provided with humidification mouth 13, and the top of humidification mouth 13 is connected with appendix 14, appendix 14
Bottom end be connected with humidifier 15, the both sides inside aerobic fermentation device ontology 1 are both provided with heater 16, aerobic fermentation device
The outside of ontology 1 is provided with control panel 36, the PLC controller 4 that the middle part at the top of head cover 2 is provided with, and 2 top of head cover is located at
The display screen 5 that the side of PLC controller 4 is provided with, by humidity sensor 11 and temperature sensor 12, convenient for incuding aerobic hair
Humidity inside ferment device body 1 and temperature, and be shown on display screen 5 by PLC controller 4, when aerobic fermentation device sheet
When humidity inside body 1 is relatively low, PLC controller 4 can control humidifier 15 and work, inside aerobic fermentation device body 1
Temperature it is relatively low when, PLC controller 4, which can control, to be increased heater 16 and works, and then humidity and temperature can be prevented relatively low right
The influence of working efficiency, intelligence are convenient；
The top of aerobic fermentation device ontology 1 is located at the side of first charging aperture 3 and is provided with tail gas discharging pipe 17 when use,
The middle part of tail gas discharging pipe 17 is provided with vent gas treatment case 18, and vent gas treatment case 18 is internally provided with check valve 19, prevents gas
The side of the reflux of body, check valve 19 is provided with activated carbon filter layer 20, and the side of activated carbon filter layer 20 is provided with chemical mistake
The low side of filtering layer 21, tail gas discharging pipe 17 is connected with suction ventilator 22, and the output end of suction ventilator 22 is connected with gas outlet 23, control panel
36 output end is electrically connected suction ventilator 22, is controlled by control panel 36 and opens suction ventilator 22, you can extracts aerobic fermentation device
Then the gas of ontology 1 is carried out by 21 pairs of gas of activated carbon filter layer 20 and chemical filtering layer inside vent gas treatment case 18
Then deodorization is discharged by gas outlet 23, you can simple and environmentally-friendly to prevent pollution of the tail gas to ambient enviroment；
The outside of aerobic fermentation device ontology 1 is provided with thermoelectric conversion case 24 when use, aerobic fermentation device ontology 1 it is outer
Side is provided with absorber plate 25, and thermoelectric conversion case 24 and the junction of absorber plate 25 are provided with heat-conducting plate 26, the side of heat-conducting plate 26
It is connected with thermoelectricity development of evil in febrile disease device 27, the side inside thermoelectric conversion case 24 is provided with battery cavities 28, and battery cavities 28 are internally provided with
The output end of accumulator 29, control panel 36 is electrically connected thermoelectricity development of evil in febrile disease device 27, and thermoelectricity development of evil in febrile disease device 27 is electrically connected by electric wire 30
Accumulator 29 can absorb the waste heat after aerobic fermentation device body 1 heats by absorber plate 25, and be conducted by heat-conducting plate 26
To thermoelectricity development of evil in febrile disease device 27, electric energy then can be converted waste heat to by thermoelectricity development of evil in febrile disease device 27, and be stored in accumulator 29, saved
Can be environmentally friendly, avoid the waste of waste heat.
Embodiment two is provided on the basis of embodiment one by Fig. 1, and the bottom end of aerobic fermentation device ontology 1 is provided with branch
Support 31,31 low side of supporting rack are provided with support leg 32, whole more stable convenient for making.
Embodiment three is provided on the basis of embodiment one by Fig. 5, and the low side of humidifier 15 is provided with holder 33, humidification
The top of device 15 is provided with water filling port 34, and the outside of water filling port 34 is provided with protection cap 35, convenient for timely adding water and preventing
Magazine enters the inside of humidifier 15.
Example IV is provided on the basis of embodiment one by Fig. 2, and the quantity of stirring flabellum 10 is six, stirs flabellum
10 outsides offer poke hole, and poke hole is round poke hole, is stirred convenient for better sludge.
Embodiment five is connected through a screw thread, protection cap on the basis of embodiment three between water filling port 34 and protection cap 35
35 be a kind of component of rubber material, convenient for making the connection of protection cap 35 more stablize.
Embodiment six is provided on the basis of embodiment five by Fig. 1, passes through supporting rod between PLC controller 4 and head cover 2
Connection, the connection between supporting rod and head cover 2 is welding, convenient for being supported to PLC controller 4.
Control panel 36 is passed using YZLJKB01F control panels 36, humidity sensor 11 using HTU21 humidity in above example
Sensor 11, temperature sensor 12 are added using WRM-101 temperature sensors 12, stirring motor 8 using Y-160M1-2 stirring motors 8
Hot device 16 is used using SRY4 heaters 16, PLC controller 4 using KSD-01F PLC controllers 4, humidifier 15, display screen 5
Using suction ventilator 22 is using XN-1 suction ventilators 22, and hot spot converter 27 is using TRZ thermoelectric converters 27.
The present invention controls stirring motor 8 by control panel 36 and works in use, first after material input, stirring motor 8
Work can drive agitating shaft 9 and stirring flabellum 10 to be rotated, you can, can material is effectively stirred and be divulged information
To improve the efficiency of sludge aerobic fermentation, by humidity sensor 11 and temperature sensor 12, convenient for induction aerobic fermentation device
Humidity inside ontology 1 and temperature, and be shown on display screen 5 by PLC controller 4, inside aerobic fermentation device body 1
Humidity it is relatively low when, PLC controller 4 can control humidifier 15 and work, the temperature inside aerobic fermentation device body 1 compared with
When low, PLC controller 4 can control increasing heater 16 and work, and then humidity and temperature can be prevented relatively low to working efficiency
Influence, intelligence is convenient；It is controlled by control panel 36 when secondly using and opens suction ventilator 22, you can extract aerobic fermentation device sheet
Then the gas of body 1 is removed by 21 pairs of gas of activated carbon filter layer 20 and chemical filtering layer inside vent gas treatment case 18
It is smelly, it is then discharged by gas outlet 23, you can simple and environmentally-friendly to prevent pollution of the tail gas to ambient enviroment；It is logical when finally using
The waste heat after aerobic fermentation device body 1 heats can be absorbed by crossing absorber plate 25, and be conducted to the thermoelectricity development of evil in febrile disease by heat-conducting plate 26
Then device 27 can convert waste heat to electric energy by thermoelectricity development of evil in febrile disease device 27, and be stored in accumulator 29, energy conservation and environmental protection is kept away
The waste of waste heat is exempted from.
Structure of the invention is novel, is skillfully constructed, material effectively can be stirred and be divulged information, can improve dirt
The efficiency of mud aerobic fermentation can prevent humidity and the relatively low influence to working efficiency of temperature, and intelligence is convenient, can prevent tail gas
Pollution to ambient enviroment, simple and environmentally-friendly, energy conservation and environmental protection avoid the waste of waste heat.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. dewatered sludge aerobic fermentation device, including aerobic fermentation device ontology (1), which is characterized in that the aerobic fermentation dress
The top for setting ontology (1) is provided with head cover (2), and the side at the top of head cover (2) is provided with first charging aperture (3), head cover (2) top
The PLC controller (4) that is provided with of middle part, the display screen being provided with positioned at the side of PLC controller (4) at the top of head cover (2)
(5), the other side at the top of head cover (2) is provided with second charging aperture (6), and the bottom end of aerobic fermentation device ontology (1), which is provided with, to be stirred
Chamber (7) is mixed, stir chamber (7) is internally provided with stirring motor (8), and the top of stirring motor (8) is connected with positioned at aerobic fermentation
Device body (1) internal agitating shaft (9) is connected with stirring flabellum (10), aerobic fermentation device ontology on the outside of agitating shaft (9)
(1) internal top is provided with humidity sensor (11), and the side of humidity sensor (11) is provided with temperature sensor (12), top
The side that the top of lid (2) is located at second charging aperture (6) is provided with humidification mouth (13), and the top of humidification mouth (13) is connected with gas transmission
It manages (14), the bottom end of appendix (14) is connected with humidifier (15), and the internal both sides of aerobic fermentation device ontology (1) are both provided with
Heater (16) is provided with control panel (36), the input terminal and alternating current of control panel (36) on the outside of aerobic fermentation device ontology (1)
It is electrically connected, the output end of control panel (36) is electrically connected humidity sensor (11), temperature sensor (12) and stirring motor
(8), humidity sensor (11) and temperature sensor (12) are electrically connected with the input terminal of PLC controller (4), PLC controller
(4) output end is electrically connected humidifier (15), display screen (5) and heater (16)；
The side that the top of the aerobic fermentation device ontology (1) is located at first charging aperture (3) is provided with tail gas discharging pipe (17),
Vent gas treatment case (18) is provided in the middle part of tail gas discharging pipe (17), vent gas treatment case (18) is internally provided with check valve
(19), the side of check valve (19) is provided with activated carbon filter layer (20), and the side of activated carbon filter layer (20) is provided with chemistry
The low side of filter layer (21), tail gas discharging pipe (17) is connected with suction ventilator (22), and the output end of suction ventilator (22) is connected with outlet
The output end of cylinder (23), control panel (36) is electrically connected suction ventilator (22)；
Thermoelectric conversion case (24) is provided on the outside of aerobic fermentation device ontology (1), aerobic fermentation device ontology is set on the outside of (1)
It is equipped with absorber plate (25), thermoelectric conversion case (24) and the junction of absorber plate (25) are provided with heat-conducting plate (26), heat-conducting plate (26)
Side be connected with thermoelectricity development of evil in febrile disease device (27), the internal side of thermoelectric conversion case (24) is provided with battery cavities (28), battery cavities
(28) be internally provided with accumulator (29), the output end of control panel (36) is electrically connected thermoelectricity development of evil in febrile disease device (27), the thermoelectricity development of evil in febrile disease
Device (27) is electrically connected accumulator (29) by electric wire (30).
2. dewatered sludge aerobic fermentation device according to claim 1, which is characterized in that the aerobic fermentation device ontology
(1) bottom end is provided with supporting rack (31), and supporting rack (31) low side is provided with support leg (32).
3. dewatered sludge aerobic fermentation device according to claim 1, which is characterized in that the low side of the humidifier (15)
It is provided with holder (33), the top of humidifier (15) is provided with water filling port (34), and water filling port is provided with protection cap on the outside of (34)
(35)。
4. dewatered sludge aerobic fermentation device according to claim 1, which is characterized in that the number of the stirring flabellum (10)
Amount is six, and poke hole is offered on the outside of stirring flabellum (10), and poke hole is round poke hole.
5. dewatered sludge aerobic fermentation device according to claim 3, which is characterized in that the water filling port (34) and protection
It is connected through a screw thread between lid (35), protection cap (35) is a kind of component of rubber material.
6. dewatered sludge aerobic fermentation device according to claim 1, which is characterized in that the PLC controller (4) and top
It is connected by supporting rod between lid (2), the connection between supporting rod and head cover (2) is welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583635.7A CN108640455A (en) | 2018-06-07 | 2018-06-07 | A kind of dewatered sludge aerobic fermentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583635.7A CN108640455A (en) | 2018-06-07 | 2018-06-07 | A kind of dewatered sludge aerobic fermentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108640455A true CN108640455A (en) | 2018-10-12 |
Family
ID=63751934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810583635.7A Pending CN108640455A (en) | 2018-06-07 | 2018-06-07 | A kind of dewatered sludge aerobic fermentation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108640455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11535544B2 (en) * | 2020-07-09 | 2022-12-27 | Hebei University Of Science And Technology | Device for treatment of organic waste |
-
2018
- 2018-06-07 CN CN201810583635.7A patent/CN108640455A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11535544B2 (en) * | 2020-07-09 | 2022-12-27 | Hebei University Of Science And Technology | Device for treatment of organic waste |
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