CN206985861U - A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system - Google Patents
A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system Download PDFInfo
- Publication number
- CN206985861U CN206985861U CN201720574653.XU CN201720574653U CN206985861U CN 206985861 U CN206985861 U CN 206985861U CN 201720574653 U CN201720574653 U CN 201720574653U CN 206985861 U CN206985861 U CN 206985861U
- Authority
- CN
- China
- Prior art keywords
- sewage
- collecting vessel
- systems
- organic fertilizer
- collecting
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Fertilizers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system, including:For carrying out the solid-liquid separation system, the pre-filtration system for removing larger particles debris, tubular ultra-filtration membrane system, the multistage RO systems for multistage filtering and concentration for further removing smaller particle debris of initial gross separation to solid in sewage and liquid, aquaculture wastewater after above-mentioned each system, obtains the clear water for meeting state sewage emission standard and the Liquid organic fertilizer that can be used as fertilizer successively.After being handled using above-mentioned technical proposal livestock and poultry cultivation sewage, the water quality of resulting clear water both can reach sewage drainage standard and Treated sewage reusing standard, solid-state and Liquid organic fertilizer can also be obtained, avoid and environment is polluted, and improve the utilization rate to sewage, and the automatic running of whole system can be realized and each system is cleaned automatically, reduce cost of labor.
Description
Technical field
It the utility model is related to sewage treatment area, and in particular to a kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer
Recovery system.
Background technology
The daily excrement and urine waste discharge capacity of some existing livestock and poultry farms is all bigger, and if at the sewage that is discharged
Reason is not up to standard or directly discharged without administering, i.e., the pollutant such as COD, suspension, ammonia nitrogen, total phosphorus in sewage effluent seriously surpasses
Mark, it will cause seriously to pollute to surrounding environment.In addition, also containing some available nutrients in institute's sewage effluent, can such as make
For organic fertilizer etc., if directly discharging or without recycling, it will cause some to have while being polluted to environment
The loss of machine fertilizer, sewage can not be made full use of.Sewage is handled and recycled it would therefore be desirable to have a set of
System is to avoid polluting environment.
Utility model content
For above-mentioned technical problem, the purpose of this utility model be to provide a kind of livestock and poultry cultivation sewage disposal zero-emission and
Organic fertilizer recovery system, after being handled using the system sewage, its water quality both can reach sewage drainage standard and reclaimed water is returned
With standard, moreover it is possible to obtain solid-state and Liquid organic fertilizer, avoid and environment is polluted, and improve the utilization rate to sewage.
To reach above-mentioned purpose, the technical scheme that the utility model is provided is as follows:A kind of livestock and poultry cultivation sewage disposal zero-emission
Put with organic fertilizer recovery system, including:
Solid-liquid separation system, the solid-liquid separation system are provided with sewage collecting pool, and the solid in sewage and liquid are carried out
After initial gross separation, gained filtered fluid is collected in sewage collecting pool;
Pre-filtration system, the pre-filtration system include prefilter and the first collecting vessel, and prefilter is to sewage collecting
Sewage in pond carries out pre-filtering, and after the debris for removing larger particles, the sewage filtered is stored in the first collecting vessel;
Tubular ultra-filtration membrane system, the tubular ultra-filtration membrane includes tubular ultra-filtration membrane and the second collecting vessel, tubular ultra-filtration membrane remove
Debris of the particle diameter more than 10 μm in the sewage of the first collecting vessel is removed, by the sewage collecting after ultrafiltration in the second collecting vessel;
Multistage RO systems, the multistage RO systems include multistage RO, multiple collecting vessels and a scuttlebutt, described multistage RO pairs
The filter water of gained is stored in scuttlebutt by sewage in the second collecting vessel after carrying out multistage filtering and concentration, will be final dense
Liquid organic fertilizer is made in contracting fluid dewatering.
Further, the multistage RO systems include one-level RO systems, two level RO systems, DTRO systems, the 3rd collecting vessel,
4th collecting vessel, the 5th collecting vessel and scuttlebutt, the water inlet of the one-level RO systems are connected with the delivery port of the second collecting vessel
Connect, the filtered water collection for having filtered to obtain is collected in the 4th collecting vessel in the 3rd collecting vessel, and by obtained concentrate;
The delivery port of 3rd collecting vessel is connected with the water inlet of two level RO systems, and the clear water obtained after having filtered is collected in scuttlebutt
In;The delivery port of 4th collecting vessel is connected with the water inlet of DTRO systems, and the concentrate after DTRO systems have concentrated is collected
In the 5th collecting vessel, Liquid organic fertilizer is made after dehydration concentrates.
Further, after the two level RO systems are filtered and concentrated to the filter water in the 3rd collecting vessel, will concentrate
Liquid, which returns to, carries out circulating filtration and concentration in the second collecting vessel.
Further, filter water resulting when handling the concentrate in the 4th collecting vessel is back to by the DTRO systems
In 3rd collecting vessel, filter and concentrate again through two level RO systems.
Further, the recovery system also includes a control system, and separation of solid and liquid system is controlled by the control system
System, pre-filtration system, the automatic running of tubular ultra-filtration membrane system and multistage RO systems.
Further, the sewage collecting pool and/or the first collecting vessel and/or the second collecting vessel and/or the 3rd collecting vessel
And/or the 4th be respectively provided with an elevator pump in collecting vessel, by the elevator pump by sewage, filter water or concentrate pump under corresponding
The water inlet of level system.
Further, the sewage collecting pool and/or the first collecting vessel and/or the second collecting vessel and/or the 3rd collecting vessel
And/or the 4th be additionally provided with fluid level controller in collecting vessel, the fluid level controller is by monitoring sewage collecting pool and each collecting vessel
In actual water level automatically control the opening and closing of each elevator pump.
Further, the fluid level controller is liquid-level floater.
Further, a filter screen is provided with the prefilter, the aperture of the filter screen is 0.5~0.8mm.
Further, the scuttlebutt and tubular ultra-filtration membrane system, one-level RO systems, two level RO systems and DTRO systems it
Between be respectively provided with a return duct, when each system is out of service and sewage empties, the filter water in scuttlebutt will be by returning accordingly
Flow tube is back to each system and it is cleaned.
Further, the filter water in the scuttlebutt is after disinfection by ultraviolet light, available for rinse poultry colony house, ground,
Road, vehicle, construction, urban afforestation, fire-fighting etc..
Using above-mentioned technological means, the utility model has the advantages that:Using pre-filtering, ultrafiltration, counter-infiltration and
The modes such as film concentration, which are combined, to be handled sewage, and its water quality both can reach sewage drainage standard(Reference《Livestock and poultry breeding industry is dirty
Contaminate thing discharge standard》(GB/T 18596-2001)), also can reach rinse poultry colony house, ground, road, vehicle, urban afforestation,
The Treated sewage reusing standard such as construction, fire-fighting(Part water standard reference《Urban sewage reutilization urban reclaimed water water quality》
(GB/T 18920-2002)), while solid-state and Liquid organic fertilizer can be obtained, avoid and environment is polluted, and improved pair
The utilization rate of sewage, and the automatic running of whole system can be realized and each system is cleaned automatically, reduce cost of labor.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the present utility model.
Embodiment
With reference to specific embodiment, the utility model is described further.
As shown in figure 1, a kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system, including following multiple systems
System:For carrying out the solid-liquid separation system of initial gross separation, for removing the pre- of larger particles debris to solid in sewage and liquid
Filtration system, for further remove smaller particle debris tubular ultra-filtration membrane system and for multistage filtering and the multistage of concentration
RO systems.
Livestock and poultry cultivation excrement and urine waste is after separation of solid and liquid obtains solid organic fertilizer and methane-generating pit pretreatment, biogas slurry(Cross
Filtrate)It is collected in sewage collecting pool, the sewage collecting pool also has regulation stabilizing water quantity, equal Hengshui in addition to sewage is collected
Matter etc. acts on.Elevator pump, fluid level controller etc. are provided with sewage collecting pool, the fluid level controller can use liquid-level floater etc.,
The water level of sewage collecting pool is monitored by fluid level controller, and then automatically controls the opening and closing of elevator pump.In collecting pit
Sewage be pumped to the water inlet of prefilter by elevator pump, sewage collecting pool can be also arranged on to higher position, according to
Making sewage self-flowing by gravity, the sewage after prefilter has filtered enters the first collecting vessel to the water inlet of prefilter,
The delivery port of first collecting vessel is connected with the water inlet of tubular ultra-filtration membrane, and particle diameter is can remove more than 10 here by tubular ultra-filtration membrane
μm debris(Such as suspension, insoluble colloid)Afterwards, by the filtered water collection filtered in the second collecting vessel.Wherein, in advance
0.5~0.8mm filter screens can be housed to filter the debris of larger particles in filter, prefilter is set before tubular ultra-filtration membrane
Effect be the debris for removing larger particles in sewage to avoid blocking or damage tubular ultra-filtration membrane, i.e. the guarantor as tubular ultra-filtration membrane
Pacify filter.
It is after prefilter using the advantage of tubular ultra-filtration membrane:It is fairly simple for the pre-processing requirements of material, liquid,
Need to only be removed through 0.5~0.8mm filter screens has the gritty matter directly damaged to enter tubular membrane unit to film, due to pretreatment letter
Single-unit about input cost, has saved operating cost.For processing high solid material, high concentration material, liquid, tubular membrane shows non-
All abilities, it is not afraid of blocking, is not likely to produce concentration polarization, and flow velocity can be adjusted on a large scale, it is ensured that its disposal ability.
Hereafter, the water quality after being handled for guarantee can reach sewage discharge national standard, be set after tubular ultra-filtration membrane more
Level RO systems, the setting of series can be depending on actual demand, and the utility model is by taking two-stage RO systems and a DTRO systems as an example, tool
Body is as follows:
The delivery port of second collecting vessel is connected with the water inlet of one-level RO systems, the delivery port and two level of the 3rd collecting vessel
The water inlet of RO systems is connected, and after the filter water of one-level RO system outputs enters the 3rd collecting vessel, enters back into two level RO systems
System is handled so that its effluent quality is up to state standards《Urban sewage reutilization urban reclaimed water water quality》(GB/T
18920-2002), the filtered water collection handled through two level RO systems is in scuttlebutt, in being carried out to it after disinfection by ultraviolet light
Water circulation, available for poultry colony house, ground, road, vehicle, construction, urban afforestation, fire-fighting etc. is rinsed, improve to original
There is the utilization rate of sewage.
Through one-level RO systems processing after concentrate be stored in the 4th collecting vessel, after DTRO systems can be pumped into by elevator pump
The water inlet of system, or water inlet of the delivery port of the 4th collecting vessel directly with DTRO systems is connected, it is preferred that through DTRO systems
Filter water after system processing is handled with true into the 3rd collecting vessel to improve the utilization rate to water, then by two level RO systems
The water stabilization of guarantor's water outlet is reliable, and the concentrate after the processing of DTRO systems is stored in the 5th collecting vessel, can be further by its
Dehydration concentration is fabricated to Liquid organic fertilizer, and fertilizer efficiency is lifted by increasing the nutrient density of Liquid organic fertilizer.Can by this mode
Nutrient in sewage is highly concentrated with recycling.
In addition, to improve the producing water ratio of one-level RO systems, the concentrate after the processing of two level RO systems is back to the second receipts
Collect in bucket, be recycled for the processing of the system such as one-level RO, two level RO and DTRO, with the water quality after further raising processing and to dirt
The recycling of nutrient in water.
In addition, can also be in one, Duo Gehuo in the first collecting vessel, the second collecting vessel, the 3rd collecting vessel, the 4th collecting vessel
Elevator pump is provided with whole collecting vessels, can be by elevator pump by sewage, filter water or concentrate pump to corresponding next stage system
The water inlet of system, each system can be set in the same horizontal line using such a mode so that overall to seem more attractive in appearance;Also
Fluid level controller can be provided with, the fluid level controller can use liquid-level floater etc., each collecting vessel is monitored by fluid level controller
In water level, and then automatically control the opening and closing of elevator pump.
Further to improve the automaticity of whole system and saving human cost, the utility model, which removes, can use hand
Dynamic control is outer, can also be provided with a control system, remaining all system can be automatically controlled, to realize the automatic of whole system
Operation.
In addition, it is respectively provided between scuttlebutt and tubular ultra-filtration membrane system, one-level RO systems, two level RO systems and DTRO systems
One return duct, when tubular ultra-filtration membrane system, one-level RO systems, two level RO systems and DTRO systems are out of service and sewage empties
When, the filter water in scuttlebutt will be back to each system by corresponding return duct and it will be cleaned.
Using the technical solution of the utility model, separation of solid and liquid acquisition solid-state can be carried out to livestock and poultry cultivation excrement and urine waste to be had
Machine fertilizer, then after prefilter and tubular ultra-filtration membrane processing, by one-level RO systems, two level RO systems, DTRO systems etc.
Mutual cooperation meets the standard of national pollution emission standard and urban reclaimed water water quality to obtain, and the liquid that can also obtain higher concentration has
Machine fertilizer, and then the zero-emission of the sewage is realized, avoid polluting environment, it is organic also the nutrient of sewage can be condensed into liquid
Fertilizer improves the utilization rate to sewage, and can realize the automatic running of whole system and each system is carried out certainly to recycle
Dynamic cleaning, reduces cost of labor.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model is made a variety of changes, be the scope of protection of the utility model.
Claims (10)
1. a kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system, it is characterised in that including:Separation of solid and liquid system
System, the solid-liquid separation system are provided with sewage collecting pool, after carrying out initial gross separation to the solid in sewage and liquid, by gained mistake
Filtrate is collected in sewage collecting pool;
Pre-filtration system, the pre-filtration system include prefilter and the first collecting vessel, and prefilter is in sewage collecting pool
Sewage carry out pre-filtering, after the debris for removing larger particles, the sewage filtered is stored in the first collecting vessel;
Tubular ultra-filtration membrane system, the tubular ultra-filtration membrane include tubular ultra-filtration membrane and the second collecting vessel, and tubular ultra-filtration membrane removes the
Particle diameter is more than 10 μm of debris in the sewage of one collecting vessel, by the sewage collecting after ultrafiltration in the second collecting vessel;
Multistage RO systems, the multistage RO systems include multistage RO, multiple collecting vessels and a scuttlebutt, and the multistage RO is to second
The filter water of gained is stored in scuttlebutt by the sewage in collecting vessel after carrying out multistage filtering and concentration, by final concentrate
Liquid organic fertilizer is made in dehydration.
2. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 1 and organic fertilizer recovery system, it is characterised in that
The multistage RO systems include one-level RO systems, two level RO systems, DTRO systems, the 3rd collecting vessel, the 4th collecting vessel, the 5th receipts
Collection bucket and scuttlebutt, the water inlet of the one-level RO systems are connected with the delivery port of the second collecting vessel, will filter what is obtained
Filtered water collection is collected in the 4th collecting vessel in the 3rd collecting vessel, and by obtained concentrate;The water outlet of 3rd collecting vessel
Mouth is connected with the water inlet of two level RO systems, and the clear water obtained after having filtered is collected in scuttlebutt;4th collecting vessel goes out
The mouth of a river is connected with the water inlet of DTRO systems, and the concentrate after DTRO systems have concentrated is collected in the 5th collecting vessel, warp
Liquid organic fertilizer is made after dehydration concentration.
3. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 2 and organic fertilizer recovery system, it is characterised in that
After the two level RO systems are filtered and concentrated to the filter water in the 3rd collecting vessel, concentrate is returned into the second collecting vessel
Middle progress circulating filtration and concentration.
4. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 3 and organic fertilizer recovery system, it is characterised in that
Filter water resulting when handling the concentrate in the 4th collecting vessel is back in the 3rd collecting vessel by the DTRO systems, through two
Level RO systems are filtered and concentrated again.
5. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 4 and organic fertilizer recovery system, it is characterised in that
The recovery system also includes a control system, and solid-liquid separation system, pre-filtration system, tubular type are controlled by the control system
The automatic running of ultrafiltration membrane system and multistage RO systems.
6. a kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system as any one of claim 1 to 5,
Characterized in that, the sewage collecting pool and/or the first collecting vessel and/or the second collecting vessel and/or the 3rd collecting vessel and/or
An elevator pump is respectively provided with four collecting vessels, by the elevator pump by sewage, filter water or concentrate pump to corresponding next stage system
The water inlet of system.
7. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 6 and organic fertilizer recovery system, it is characterised in that
In the sewage collecting pool and/or the first collecting vessel and/or the second collecting vessel and/or the 3rd collecting vessel and/or the 4th collecting vessel
Fluid level controller is additionally provided with, the fluid level controller is by monitoring the actual water level in sewage collecting pool and each collecting vessel come automatic
Control the opening and closing of each elevator pump.
8. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 7 and organic fertilizer recovery system, it is characterised in that
The fluid level controller is liquid-level floater.
9. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 6 and organic fertilizer recovery system, it is characterised in that
A filter screen is provided with the prefilter, the aperture of the filter screen is 0.5~0.8mm.
10. a kind of livestock and poultry cultivation sewage disposal zero-emission as claimed in claim 6 and organic fertilizer recovery system, its feature exist
In being respectively provided with a backflow between scuttlebutt and the tubular ultra-filtration membrane system, one-level RO systems, two level RO systems and DTRO systems
Pipe, when each system is out of service and sewage empties, the filter water in scuttlebutt will be back to each system by corresponding return duct
Unite and it is cleaned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720574653.XU CN206985861U (en) | 2017-05-23 | 2017-05-23 | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720574653.XU CN206985861U (en) | 2017-05-23 | 2017-05-23 | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206985861U true CN206985861U (en) | 2018-02-09 |
Family
ID=61389438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720574653.XU Expired - Fee Related CN206985861U (en) | 2017-05-23 | 2017-05-23 | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206985861U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106986470A (en) * | 2017-05-23 | 2017-07-28 | 厦门科滤膜技术有限公司 | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system and its technique |
CN111732242A (en) * | 2020-08-18 | 2020-10-02 | 湖南鑫恒环境科技有限公司 | Harmless treatment and recycling process for slurry wastewater |
CN112876017A (en) * | 2021-03-22 | 2021-06-01 | 重庆大学 | Rural septic tank excrement resource thing collection vehicle based on membrane separation |
-
2017
- 2017-05-23 CN CN201720574653.XU patent/CN206985861U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106986470A (en) * | 2017-05-23 | 2017-07-28 | 厦门科滤膜技术有限公司 | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system and its technique |
CN106986470B (en) * | 2017-05-23 | 2023-04-25 | 厦门科滤膜技术有限公司 | Livestock and poultry breeding sewage treatment zero-emission and organic fertilizer recycling system and technology thereof |
CN111732242A (en) * | 2020-08-18 | 2020-10-02 | 湖南鑫恒环境科技有限公司 | Harmless treatment and recycling process for slurry wastewater |
CN112876017A (en) * | 2021-03-22 | 2021-06-01 | 重庆大学 | Rural septic tank excrement resource thing collection vehicle based on membrane separation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206985861U (en) | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system | |
CN206544958U (en) | A kind of Waste Water Treatment | |
CN206553326U (en) | A kind of wastewater treatment equipment | |
CN205501073U (en) | Papermaking wastewater treatment system | |
CN109264922A (en) | A kind of device and method of natural feather waste water recycling device | |
CN207091183U (en) | A kind of industrial and mineral waste water high-efficiency purifies and recycled equipment | |
CN106986470A (en) | A kind of livestock and poultry cultivation sewage disposal zero-emission and organic fertilizer recovery system and its technique | |
CN206607122U (en) | A kind of municipal sewage system | |
CN205933455U (en) | Industrial waste water high -efficiency processing device | |
CN205088040U (en) | Sewage treatment plant carries mark technological transformation degree of depth filtration system | |
CN106865643A (en) | A kind of ceramic straight filter system for processing waste water of mine of not dosing | |
CN206089332U (en) | Sewage resource system up to standard is synthesized in multi -functional villages and small towns | |
CN110330140A (en) | Saline and alkaline region water pollution improvement and system for regenerating and recycling and method | |
CN202212065U (en) | Car washing water circulation all-in-one machine | |
CN108793597A (en) | A kind of higher suspension solid concentration stain disease reuse project method | |
CN209456193U (en) | One kind being used for powder sewage-treatment plant | |
CN204779141U (en) | Heavy metal wastewater retrieval and utilization treatment facility | |
CN207418524U (en) | A kind of water circulation system | |
CN207713572U (en) | A kind of New Type of Sewage Treatment System | |
CN206188579U (en) | Normal water cyclic utilization equipment | |
CN202898106U (en) | Backwash-free self-flow type mud water separating device for aerobic pool | |
CN208151108U (en) | A kind of intermediate water reuse system for recirculated cooling water | |
CN207158820U (en) | Chemical Manufacture reactant mixture decontaminates purifying box | |
CN207091155U (en) | A kind of biogas slurry utilization of wastewater resource system | |
CN109879487A (en) | Environment-friendly buried filtering and recycling device for automobile cleaning |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20190523 |