CN105457357A - Sludge filter press - Google Patents
Sludge filter press Download PDFInfo
- Publication number
- CN105457357A CN105457357A CN201610036941.XA CN201610036941A CN105457357A CN 105457357 A CN105457357 A CN 105457357A CN 201610036941 A CN201610036941 A CN 201610036941A CN 105457357 A CN105457357 A CN 105457357A
- Authority
- CN
- China
- Prior art keywords
- filter plate
- fixed
- sheet frame
- frame
- sludge
- 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a sludge filter press. The sludge filter press comprises guide pillars arranged in parallel. A right beam is fixed to one ends of the guide pillars, and a left beam is fixed to the other ends of the guide pillars; at least two plate frame assemblies are arranged on the guide pillars in a sliding mode, secondary parts and primary parts are formed on the plate frame assemblies, and when the secondary parts and the primary parts of the adjacent plate frame assemblies are in contact, filtering chambers with variable sizes are formed; the right beam is fixedly connected with the plate frame assembly adjacent to the right beam, feeding holes in the right beam are communicated with material holes in the plate frame assemblies to form channels, and the channels are connected with the filtering chambers; locking rods are arranged on the plate frame assemblies, an automatic discharging mechanism is further fixed to the left beam and the right beam, partition plate position locks are fixed to the automatic discharging mechanism, and when suspending liquid is led into the filtering chambers, the locking rods are put into the partition plate position locks. When the filter press works, sludge with the water content of 80% can be pressed and dried into sludge with the water content of 15% or less without adding any chemical or any solid powder.
Description
Technical field
The present invention relates to a kind of sludge filter press.
Background technology
Along with the development of Chinese society economy and urbanization, water supply and sewage pipe network is extended, the increase of sewage treatment plant, sludge yield gets more and more, but current domestic specific resistance to filtration level is very low, and mud is after the thickening of routine, mainly throw aside, be difficult to reach the requirement of the minimizing of mud, stabilisation, innoxious, resource, and bring secondary pollution and the water supply and sewage of environment, the difficulty that sewage disposal normally runs.Although some water treatment enterprise, also drop into some mechanical sludge dewatering equipment, due to backward in technique, always unsatisfactory." State Council is about some suggestions of developing a circular economy " sludge reduction recycling, as one of emphasis link of developing a circular economy.The optimization of Treatment of Sludge project and modernization development have become and accelerate an urgent demand science that urban development promotes Urbanization in China to solve sludge handling problem imperative in fact.And plant equipment lignin-sludge substitute mode is the important measures of current domestic effective energy-saving and emission-reduction.Along with the fast development of economy and growth in the living standard people more and more emphasize that the raising of quality of life is constantly bettered people's living environment.In recent years, China has strict requirement to the improvement of urban environment and the attaching importance to environmental protection department all the more that transforms to ecocity and the sanitary city, in this condition under this overall background, the dynamics that governments at all levels increase urban environment improvement all one after another is not only paid much attention to and is supported energetically economically in policy.In addition governments at all levels also actively groping the most appropriate, the mechanization Environmental-protecting treater of efficient science and advanced person.
The sludge dewatering equipment of current extensive use is if the moisture content of belt filter press, plate and frame type filter-press, folded spiral shell formula filter press dehydrated sludge is all 70% ~ 80%.Mud after dehydration needs to utilize the moisture in heat source evaporation mud, i.e. sludge drying.General steam, flue gas etc., cause that processing cost is high, tail is large-minded, cooling water inflow causes secondary pollution greatly, easily.Also have at present part producer to adopt after dehydrated sludge reinforcing body powder through frame filter press press filtration, make dehydrated sludge moisture content below 60%, but it is comparatively large to add pressed powder amount, only increases the solids content of mud, adds useless solid discharge simultaneously.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of sludge filter press be provided, this filter press in the course of the work, without the need to adding any medicament or the mud of moisture 80% can press dry to less than 15% by pressed powder.
According to technical scheme of the present invention: a kind of sludge filter press, it is characterized in that: comprise guide pillar arranged in parallel, right beam is fixed in guide pillar one end, the other end fixes left beam, guide pillar slides at least two group sheet frame assemblies are set, sheet frame assembly is formed sub-portion and female portion, when the sub-portion of adjacent two sheet frame assemblies and female portion contact with each other, form the worry room that size is variable; You Liang is fixedly connected with the sheet frame assembly closed on mutually, and the material hole on the feedhole on right beam and sheet frame assembly is formed through passage mutually, and passage is connected with worry room; Sheet frame assembly is provided with locking bar, Zuo Liang, right beam are also fixed with Automatic Charging Device, Automatic Charging Device are fixed with partition position lock, when passing into suspension in worry room, locking bar is placed in partition position lock, and the lifting driving lever in Automatic Charging Device is used for sheet frame assembly to move in the horizontal direction.
As a further improvement on the present invention, described sheet frame assembly comprises filter plate frame, pressing plate, filter plate, filter cloth, sheet frame, the groove of filter plate frame is female portion, filter plate is arranged at bottom portion of groove, filter cloth is arranged on filter plate, sheet frame is fixed on the housing of filter plate frame, and the bottom portion of groove edge osculum of filter plate frame, pressing plate is fixed on filter plate frame bottom and forms sub-portion.
As a further improvement on the present invention, some osculums offered by described filter plate, the osculum on filter plate is connected by guiding gutter, and described guiding gutter is opened on filter plate, near filter plate frame side or is opened in filter plate both side surface.
As a further improvement on the present invention, described Automatic Charging Device comprises linear slide seat, lifting driving lever, lock frame, partition position lock, wherein linear slide seat is individually fixed in Zuo Liang, You Liangshang with lock frame two ends, lifting driving lever slides and is arranged on linear slide seat, several partition positions lock is uniform to be arranged on lock frame, and partition position lock vertically can do elevating movement.
As a further improvement on the present invention, described Zuo Liang, right both beams are fixed on guide pillar by locking nut.
Technique effect of the present invention is: the invention provides a kind of without the need to adding any medicament or the mud of moisture 80% can press dry to less than 15% by pressed powder; Adopt the super-pressure squeezing of 6MP, effectively remove the space water in mud, while part removes capillary water in mud and cellular water, Milling Efficiencty is more than 6 times of common filter press; Adopt alloy material and nonmetallic materials combination filter plate can bear the operating pressure of more than kiloton, the filter plate life-span is ten several times of common filter plate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is sectional view of the present invention.
Fig. 3 is stereogram of the present invention.
Fig. 4 is the schematic diagram that in the present invention, right beam and sheet frame are always shaped as passage.
Fig. 5 is the schematic diagram of Automatic Charging Device in the present invention.
Fig. 6 is filter plate surface texture view in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
In Fig. 1 ~ 6, comprise right beam 1, left beam 2, walking beam 3, guide pillar 4, oil cylinder 5, cylinder bar 6, locking nut 7, sheet frame assembly 8, filter plate frame 8-1, pressing plate 8-2, filter plate 8-3, filter cloth 8-4, sheet frame 8-5, locking bar 8-6, Automatic Charging Device 9, linear slide seat 9-1, lifting driving lever 9-2, lock frame 9-3, partition position lock 9-4, feed pipe 10, passage A, consider room B etc.
As shown in Fig. 1 ~ 6, the present invention is a kind of sludge filter press, comprise guide pillar 4 arranged in parallel, right beam 1 is fixed in guide pillar 4 one end, the other end fixes left beam 2, and guide pillar 4 slides arranges at least two group sheet frame assemblies 8, sheet frame assembly 8 is formed sub-portion and female portion, when the sub-portion of adjacent two sheet frame assemblies 8 and female portion contact with each other, form the worry room B that size is variable; Right beam 1 is fixedly connected with the sheet frame assembly 8 closed on mutually, and the feedhole on right beam 1 and the material hole on sheet frame assembly 8 are formed through passage A mutually, and passage A is connected with worry room B; Sheet frame assembly 8 is provided with locking bar 8-6, left beam 2, right beam 1 are also fixed with Automatic Charging Device 9, Automatic Charging Device 9 is fixed with partition position lock 9-4, when passing into suspension in worry room B, locking bar 8-6 is placed in partition position lock 9-4, the lifting driving lever 9-2 in Automatic Charging Device 9 and is used for sheet frame assembly 8 to move in the horizontal direction.
Sheet frame assembly 8 comprises filter plate frame 8-1, pressing plate 8-2, filter plate 8-3, filter cloth 8-4, sheet frame 8-5, the groove of filter plate frame 8-1 is female portion, filter plate 8-3 is arranged at bottom portion of groove, filter cloth 8-4 is arranged on filter plate 8-3, sheet frame 8-5 is fixed on the housing of filter plate frame 8-1, the bottom portion of groove edge osculum of filter plate frame 8-1, pressing plate 8-2 is fixed on bottom filter plate frame 8-1 and forms sub-portion.Have osculum at the edge of filter plate frame 8-1, operationally, press filtration water is discharged from osculum.
Filter plate 8-3 offers some osculums, and the osculum on filter plate 8-3 is connected by guiding gutter, and described guiding gutter is opened on filter plate 8-3, near filter plate frame 8-1 side or is opened in filter plate 8-3 both side surface.
Automatic Charging Device 9 comprises linear slide seat 9-1, lifting driving lever 9-2, lock frame 9-3, partition position lock 9-4, wherein linear slide seat 9-1 is individually fixed on left beam 2, right beam 1 with lock frame 9-3 two ends, lifting driving lever 9-2 slides and is arranged on linear slide seat 9-1, several partition positions lock 9-4 is uniform to be arranged on lock frame 9-3, and partition position lock 9-4 vertically can do elevating movement.The elevating movement of partition position lock 9-4 can be realized by various ways, can install a cylinder respectively, drive partition position to lock 9-4 carry out elevating movement by cylinder on lock frame 9-3, corresponding to each partition position lock 9-4 place; Lifting driving lever 9-2 also can realize elevating movement by cylinder.In concrete production practices, the lift work of partition position lock 9-4 and lifting driving lever 9-2, also can be chosen as hydraulic cylinder according to specific needs or other modes realize.
Left beam 2, both right beams 1 are fixed on guide pillar 4 by locking nut 7.
The course of work of the present invention is as follows: original state, each sheet frame assembly 8 points intersperses among on guide pillar 4, lifting driving lever 9-2 is by the horizontal slip of lift work vertically and linearly slide plate chair 9-1, promote locking bar 8-6 and sheet frame assembly 8 is moved to corresponding partition position lock 9-4 place, formed before making adjacent two sheet frame assemblies 8 and consider room B, the complete passage A of rear formation assembled by right beam 1 and feed pipe 10, and passage A and filter chamber B UNICOM, can pass into suspension.Suspension hydraulic pressure is pressed into filter chamber B by passage A by charging pump, after suspension is full of filter chamber B appropriate location, oil cylinder 5 promotes walking beam 3 and extrudes the plate frame assembly 8 be arranged in order, (now, partition position lock 9-4 regains downwards) until passage A and filter chamber B isolates, extract suspension in passage A out, strengthen crushing strength to more than 6MP, filter cloth 8-4 forms filter residue, filtrate is through filter cloth 8-4 and flow into filter plate frame 8-1 osculum along the osculum of filter plate 8-3 and guiding gutter and discharge, after filtration, shed extruding force, Automatic Charging Device 9 drags sheet frame assembly 8 removal filter residue successively.
Claims (5)
1. a sludge filter press, it is characterized in that: comprise guide pillar (4) arranged in parallel, right beam (1) is fixed in guide pillar (4) one end, the other end fixes left beam (2), the upper slip of guide pillar (4) arranges at least two group sheet frame assemblies (8), sheet frame assembly (8) is upper forms sub-portion and female portion, when the sub-portion of adjacent two sheet frame assemblies (8) and female portion contact with each other, forms the worry room (B) that size is variable; Right beam (1) is fixedly connected with the sheet frame assembly (8) closed on mutually, and the material hole on the feedhole on right beam (1) and sheet frame assembly (8) is formed through passage (A) mutually, and passage (A) is connected with worry room (B); Sheet frame assembly (8) is provided with locking bar (8-6), left beam (2), right beam (1) are also fixed with Automatic Charging Device (9), Automatic Charging Device (9) is fixed with partition position lock (9-4), when passing into suspension in worry room (B), locking bar (8-6) is placed in partition position lock (9-4), and the lifting driving lever (9-2) in Automatic Charging Device (9) is for moving sheet frame assembly (8) in the horizontal direction.
2. sludge filter press as claimed in claim 1, it is characterized in that: described sheet frame assembly (8) comprises filter plate frame (8-1), pressing plate (8-2), filter plate (8-3), filter cloth (8-4), sheet frame (8-5), the groove of filter plate frame (8-1) is female portion, filter plate (8-3) is arranged at bottom portion of groove, filter cloth (8-4) is arranged on filter plate (8-3), sheet frame (8-5) is fixed on the housing of filter plate frame (8-1), the bottom portion of groove edge osculum of filter plate frame (8-1), pressing plate (8-2) is fixed on filter plate frame (8-1) bottom and forms sub-portion.
3. sludge filter press as claimed in claim 2, it is characterized in that: some osculums offered by described filter plate (8-3), osculum on filter plate (8-3) is connected by guiding gutter, and described guiding gutter is opened in upper, close filter plate frame (8-1) side of filter plate (8-3) or is opened in filter plate (8-3) both side surface.
4. sludge filter press as claimed in claim 1, it is characterized in that: described Automatic Charging Device (9) comprises linear slide seat (9-1), lifting driving lever (9-2), lock frame (9-3), partition position lock (9-4), wherein linear slide seat (9-1) is individually fixed on left beam (2), right beam (1) with both two ends of lock frame (9-3), lifting driving lever (9-2) is slided and is arranged on linear slide seat (9-1), several partition positions lock (9-4) are uniform to be arranged on lock frame (9-3), and partition position lock (9-4) vertically can do elevating movement.
5. sludge filter press as claimed in claim 1, is characterized in that: both described left beam (2), right beam (1) are fixed on guide pillar (4) by locking nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610036941.XA CN105457357B (en) | 2016-01-20 | 2016-01-20 | sludge filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610036941.XA CN105457357B (en) | 2016-01-20 | 2016-01-20 | sludge filter press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105457357A true CN105457357A (en) | 2016-04-06 |
| CN105457357B CN105457357B (en) | 2017-12-12 |
Family
ID=55595782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610036941.XA Expired - Fee Related CN105457357B (en) | 2016-01-20 | 2016-01-20 | sludge filter press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105457357B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249731A (en) * | 2018-05-04 | 2018-07-06 | 湖北合加环境设备有限公司 | The self-locking device and filter plate of electro-osmosis sludge high-dry dewaterer filter chamber |
| CN114225520A (en) * | 2021-12-09 | 2022-03-25 | 山西瑞光热电有限责任公司 | Vacuum belt dehydrator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181615A (en) * | 1977-09-16 | 1980-01-01 | Hans Wilms | Filter apparatus |
| JPH01155913A (en) * | 1987-12-11 | 1989-06-19 | Shinichiro Katabuchi | Apparatus for forming sludge cake |
| CN201046354Y (en) * | 2006-12-19 | 2008-04-16 | 秦海江 | Rapid opening pressure filter |
| CN204233841U (en) * | 2014-11-10 | 2015-04-01 | 中联重科股份有限公司 | Plate and frame filter press |
| CN104587718A (en) * | 2014-12-26 | 2015-05-06 | 上海市政工程设计研究总院（集团）有限公司 | Variable-capacitance plate frame dehydration device for sludge |
| CN204910913U (en) * | 2015-09-15 | 2015-12-30 | 江苏中泥净化环境科技有限公司 | Filter plate subassembly and use its pressure filter |
-
2016
- 2016-01-20 CN CN201610036941.XA patent/CN105457357B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181615A (en) * | 1977-09-16 | 1980-01-01 | Hans Wilms | Filter apparatus |
| JPH01155913A (en) * | 1987-12-11 | 1989-06-19 | Shinichiro Katabuchi | Apparatus for forming sludge cake |
| CN201046354Y (en) * | 2006-12-19 | 2008-04-16 | 秦海江 | Rapid opening pressure filter |
| CN204233841U (en) * | 2014-11-10 | 2015-04-01 | 中联重科股份有限公司 | Plate and frame filter press |
| CN104587718A (en) * | 2014-12-26 | 2015-05-06 | 上海市政工程设计研究总院（集团）有限公司 | Variable-capacitance plate frame dehydration device for sludge |
| CN204910913U (en) * | 2015-09-15 | 2015-12-30 | 江苏中泥净化环境科技有限公司 | Filter plate subassembly and use its pressure filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249731A (en) * | 2018-05-04 | 2018-07-06 | 湖北合加环境设备有限公司 | The self-locking device and filter plate of electro-osmosis sludge high-dry dewaterer filter chamber |
| CN108249731B (en) * | 2018-05-04 | 2023-06-13 | 启迪合加新能源汽车有限公司 | Self-locking device and filter plate of filter chamber of electroosmosis sludge high-dry dehydrator |
| CN114225520A (en) * | 2021-12-09 | 2022-03-25 | 山西瑞光热电有限责任公司 | Vacuum belt dehydrator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105457357B (en) | 2017-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Sanwu Inventor before: Zhao Kejian |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170621 Address after: 510665 Guangdong city of Guangzhou province Tianhe District Software Park Building No. 59 Middle East block, Grand Building Room 501 Applicant after: Shi Sanwu Address before: 505, room 1, building 188, 215028 Pier Road, Suzhou Industrial Park, Suzhou, Jiangsu, China Applicant before: SUZHOU LUOMAI ENVIRONMENTAL TECHNOLOGY CO.,LTD. |
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| TA01 | Transfer of patent application right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Lipeng Inventor before: Shi Sanwu |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170918 Address after: 518017 A building, 11H building, No. 1002 Fu Qiang Road, Shenzhen, Guangdong, Futian District, Ruichang Applicant after: Sun Lipeng Address before: 510665 Guangdong city of Guangzhou province Tianhe District Software Park Building No. 59 Middle East block, Grand Building Room 501 Applicant before: Shi Sanwu |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200506 Address after: 518000 no.131-2209, Longjing Village, Longguang community, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Changqing New Energy Investment Consulting Co., Ltd Address before: 518017 11H, building A, Ruichang building, 1002 Fu Qiang Road, Shenzhen, Guangdong, Futian District Patentee before: Sun Lipeng |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20210120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |