CN201001989Y - Device for regenerating and rectifying for rotary drum vacuum filtering machine filter cloth - Google Patents
Device for regenerating and rectifying for rotary drum vacuum filtering machine filter cloth Download PDFInfo
- Publication number
- CN201001989Y CN201001989Y CNU2007200675515U CN200720067551U CN201001989Y CN 201001989 Y CN201001989 Y CN 201001989Y CN U2007200675515 U CNU2007200675515 U CN U2007200675515U CN 200720067551 U CN200720067551 U CN 200720067551U CN 201001989 Y CN201001989 Y CN 201001989Y
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- filter cloth
- filter
- rotary drum
- automatic
- drum vacuum
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Abstract
The utility model discloses a reproduction and position correction device for the filter cloth of the rotor drum vacuum filter, wherein, the automatic position correction device comprises a filter cloth automatic stretching drum device, a bow-like stretching rod and a movable stretching drum, which are positioned in sequence and in parallel on the filter cloth washing groove - the position of the bow-like stretching rod is higher than the position of the filter cloth automatic stretching device. The filter cloth automatic washing and reproduction device is composed of an unloading drum, an unloading air injecting tube, a filter cloth back washing tube and a filter cloth front washing tube. The unloading air injecting tube is positioned below the unloading drum on the right; the two sets of filter cloth back washing tubes are arranged below the unloading air injecting tube on the right and below the bow-like stretching rod; the two sets of filter cloth front washing tubes are positioned in the middle of the two filter cloth back washing tubes and below the movable stretching drum. The utility model carry out the automatic filter cloth position correction and the automatic control simultaneously by making use of the solid and liquid separation and the reproduction of the filter media. The device has a concise and rational structure and a high efficient and stable performance, and is easy to operate.
Description
Technical field
The utility model relates to a kind of device of field of mechanical technique, is specifically related to a kind of rotary drum vacuum filter filter cloth regeneration and deviation correcting device.
Background technology
Along with the development of society and the diversity of product, there is a large amount of Separation of Solid and Liquid problems need to begin our attention, promoted the raising of solid-liquid separating equipment simultaneously.Filtration is the main means of Separation of Solid and Liquid, and extremely application fields is arranged.Vacuum filter enters production application from the sixties in last century in China, but form is continued to use former Soviet Union heaviness, power consumption is big, filter efficiency is low structure always, and bigger change is not arranged.From the later stage eighties in last century to the nineties, after the domestic large-scale pharmacy corporation of China began to introduce the advanced vacuum-type drum filter of the U.S. DORR company and the Western European countries, the advantage on the import equipment performance displayed.
Existing vacuum-type drum filter mainly comprises folding belt and scraper-type rotary drum filter.Operation principle all is under the pressure difference effect, forces the liquid-solid two-phase mixture by filter medium the time, and solid particle is trapped, and reaches the purpose of Separation of Solid and Liquid.Folding belt rotary drum filter discharge way is to utilize three rollers, and filter cloth is wrapped on filter drum and the roller by certain way, along with the flip-flop of filter cloth traffic direction, realizes that filter cake comes off from filter cloth, falls into the filter cake groove.The scraper plate that relies on the rotary drum side that comes off of scraper-type rotary drum filter filter cake is realized.
There is following problem in existing vacuum-type drum filter: the regeneration of Separation of Solid and Liquid and filter medium can not be carried out simultaneously in (1) filter process; (2) the filter cloth deviation correcting device needs artificial the adjustment, the operation easier height, and the wrinkle that filter cloth sideslip and sideslip produce when pushing back cause the filter cloth wearing and tearing; (3) strainability is subjected to the material characteristic fluctuation big; The scope of application is narrower, is used for papermaking, starch industry more; (4) general enterprise can't be born for the price of import equipment (particularly spare part), the operating cost costliness.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, the utility model provides a kind of rotary drum vacuum filter filter cloth regeneration and deviation correcting device, regeneration by Separation of Solid and Liquid in the filter process and filter medium is carried out simultaneously, filter cloth automatic deviation correction and equipment operation Automatic Control, simple for structure rationally, performance efficient stable, easy to operate.
The utility model is achieved through the following technical solutions, and the utility model comprises: automatic deviation rectifying device, the automatic regenerated from washing device of filter cloth.Two devices are installed on the side plate of filter cloth sink both sides, are positioned at filter reservoir exit side.
Described automatic deviation rectifying device comprises: horizontally on the filter cloth sink, bow type nutted rod position is higher than the filter cloth automatic takeup successively for filter cloth automatic takeup, arc nutted rod and activity tensioning roller, these three parts.
Described activity tensioning roller comprises: horizontal adjusting screw(rod), vertical adjusting screw rod, live bearing, movable roll guiding trestle, movable idler roller; Movable idler roller two ends are provided with live bearing, and the vertical adjusting screw rod is arranged at live bearing top, and live bearing vertically moves in the chute of movable roll guiding trestle both sides, and a side of movable roll guiding trestle is provided with horizontal adjusting screw(rod).
The automatic regenerated from washing device of described filter cloth comprises discharge roller, discharging air blown pipe, filter cloth reverse side scavenge pipe and filter cloth front scavenge pipe, discharging air blown pipe is positioned at the lower right of discharge roll, two cover filter cloth reverse side scavenge pipes are positioned at discharging air blown pipe lower right and bow type nutted rod below, and two cover filter cloth front scavenge pipes are positioned at the below of two filter cloth reverse side scavenge pipes middle part and movable idler roller.
Described discharge roller surface has the screw type steel wire of projection, and the nozzle of different size type is housed on anti-scavenge pipe of filter cloth and the positive scavenge pipe, and the parameter of nozzle is selected by the test to material, and the position of scavenge pipe can be made up layout as requested.
The utility model filter cloth automatic deviation rectifying device makes the tensile force of filter cloth keep impartial, and the correction of filter cloth is carried out automatically at any time; Use the automatic regenerated from washing device of filter cloth, filter cloth enters automatic cleaning through behind the discharge zone, and the tow sides with filter cloth clean high-pressure wash water in different positions through nozzle, and the pressure of rinse water and injection flow rate can be adjusted according to filtering vacuum.
The utility model adopts the filter cloth automatic deviation rectifying device, carries out the compensation of tensile force when making permeability medium (filter cloth) work operation and adjusts to prevent the filter cloth sideslip, and filter cloth is held back the process that realizes regeneration behind the solid phase particles simultaneously.Filter cake under being held back by filter cloth is through suction strainer, drying, washing, again behind the dry section, run to discharge zone with filter cloth, sparge pipe ejection high pressure cascade makes the filter cloth tow sides be subjected to abundant washing, and the fine particle residue that is packed in the filter cloth hole is washed down, and finishes the regeneration to filter cloth.Filter cloth after the regeneration, enters in the suspension with rotary drum again around to rotary drum by the mop roller, begins new circulation.
The utility model is compared with prior art, and the utility model adopts full-automatic filter cloth regeneration and deviation correcting device technology, and filter is continuous feed and discharging under vacuum action, is in operation to clean filter cloth automatically, and operation automatically, continuously; Filter loading and unloading filter cloth is convenient, and automatic deviation correction during the filter cloth operation is accomplished unattended; After adopting full-automatic filter cloth regeneration and deviation correcting device technology, modular construction is reasonable, stable drive, and noiselessness except that carrying out operational maintenance, reaches freedom from repairs; Discharging completely, filter cloth washing fully, material filtering efficient height reaches 95～97%.The utility model can be applicable to fields such as pharmacy, chemical industry, food, metallurgy, papermaking and environmental protection, can obtain good economy, environmental benefit.
Description of drawings
Fig. 1 is the utility model automatic deviation rectifying device structural representation
Fig. 2 is the automatic regenerated from washing apparatus structure of a utility model filter cloth schematic diagram
Fig. 3 is the utility model fundamental diagram
Among Fig. 1, discharge roller 1, filter cloth automatic takeup 2, spring 3, fairlead 4, support 5, guide post 6, guide roller 7, D type gib block 8, arc nutted rod 9, nutted rod support 10, horizontal adjusting screw(rod) 11, vertical adjusting screw rod 12, live bearing 13, movable roll guiding trestle 14, movable idler roller 15, photoelectric induction device 16.
Among Fig. 2, filter cloth sink 17, discharging air blown pipe 18, filter cloth reverse side scavenge pipe 19, filter cloth front scavenge pipe 20, nozzle 21, reservoir 22, washings filter 23.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, present embodiment has provided detailed embodiment and process being to implement under the prerequisite with technical solutions of the utility model, but protection domain of the present utility model is not limited to following embodiment.
Present embodiment comprises: automatic deviation rectifying device, the automatic regenerated from washing device of filter cloth.Two devices are installed on the side plate of filter cloth sink 17 both sides, are positioned at filter reservoir exit side.
As shown in Figure 1, described automatic deviation rectifying device comprises: filter cloth automatic takeup 2, arc nutted rod 9 and activity tensioning roller.Horizontally on filter cloth sink 17, bow type nutted rod 9 positions are higher than filter cloth automatic takeup 2 to these three parts successively.
Described filter cloth automatic takeup 2 is positioned at discharge roller 1 top, and two covers are arranged, and is symmetrical set on the horizontal fixed plate of filter cloth sink 17 both sides by the angle-steel support.
After described bow type nutted rod 9 is installed in filter cloth automatic takeup 2, bow shape tube is fixed on the horizontal fixed plate of filter cloth sink 17 both sides by two angle-steel fixed supports;
Described arc nutted rod 9 is the sinusoidal circular arc type bend pipe of intermediate projections, is installed on the nutted rod support 10 with fixing hoop, and circular arc type projection bend pipe makes filter cloth stretch to both sides along the camber curve, makes filter cloth smooth non-wrinkle.
Described filter cloth automatic takeup 2 comprises: spring 3, fairlead 4, support 5, guide post 6, guide roller 7 and D shape gib block 8.Two guide rollers 7 are positioned at the front end of D type gib block 8, be splayed configuration, D type gib block 8 is that two high abrasion resisting materials are made, D type passages are formed in two synthetic backs, and D shape gib block 8 and guide post 6 are connected slip in fairlead 4 by bearing pin, fairlead 4 is fixing by two nuts and support 5, whole filter cloth automatic takeup 2 is fixed on the filter cloth sink 17 horizontal fixed plates by support 5, and guide post 6 afterbodys are equipped with spring 3, arbitrarily the thrust of regulating spring 3.
Described activity tensioning roller is made up of horizontal adjusting screw(rod) 11, vertical adjusting screw rod 12, live bearing 13, movable roll guiding trestle 14, movable idler roller 15.Live bearing 13 is installed at movable idler roller 15 two ends, vertical adjusting screw rod 12 is equipped with on live bearing 13 tops, live bearing 13 vertically moves in movable roll guiding trestle 14 both sides chutes, one side of movable roll guiding trestle 14 is equipped with horizontal adjusting screw(rod) 11, make movable idler roller 15 in movable roll guiding trestle 14, make movement in vertical direction by regulating vertical adjusting screw rod 12 handles, horizontal adjusting screw(rod) 11 handles of adjusting make movable roll guiding trestle 14 make horizontal hunting along the bottom fulcrum, and the position of movable idler roller 15 is adjusted arbitrarily in vertical and horizontal direction.
Described movable roll guiding trestle 14 is fixed by round pin and filter cloth sink 17 side plates, and the live bearing of movable idler roller 15 both sides is connected with the chute of movable roll guiding trestle 14.
As shown in Figure 2, the automatic regenerated from washing device of described filter cloth comprises discharge roller 1, discharging air blown pipe 18, filter cloth reverse side scavenge pipe 19 and filter cloth front scavenge pipe 20.Discharging air blown pipe 18 is positioned at the lower right of discharge roll 1, the direction of puff prot and filter cloth filter cake discharge direction meet at right angles, two cover filter cloth reverse side scavenge pipes 19 are positioned at discharging air blown pipe 18 lower rights and bow type nutted rod 9 belows, two cover filter cloth front scavenge pipes 20 are positioned at the below of two filter cloth reverse side scavenge pipe 19 middle parts and movable idler roller 15, and Butterworth Hatch and walking of filter cloth acutangulate layout.
Described discharge roller 1 surface has the screw type steel wire of projection, is positioned at the rotary drum filter discharge side outside, and turning spur speed and rotary drum linear velocity keep a certain proportion of constant speed.
The nozzle 21 of different size type is housed on described filter cloth reverse side scavenge pipe 19 and the filter cloth front scavenge pipe 20, the parameter of nozzle 21 is selected by the test to material, and the position of filter cloth reverse side scavenge pipe 19 and filter cloth front scavenge pipe 20 can be arranged according to the property combination of filter material.
As shown in Figure 3, the utility model adopts the filter cloth automatic deviation rectifying device, carries out the compensation of tensile force when making permeability medium (filter cloth) work operation and adjusts to prevent the filter cloth sideslip, and filter cloth is held back the process that realizes regeneration behind the solid phase particles simultaneously.Filter cake under being held back by filter cloth is through suction strainer, drying, washing, again behind the dry section, run to discharge zone with filter cloth, filter cloth reverse side scavenge pipe 19, filter cloth front scavenge pipe 20 ejection high pressure cascades make the filter cloth tow sides be subjected to abundant washing, the fine particle residue that is packed in the filter cloth hole is washed down, finished regeneration filter cloth.Filter cloth after the regeneration, enters in the suspension with rotary drum again around to rotary drum by mop roller, begins new circulation.
Described bow type nutted rod 9 is expanded to both sides along bow type nutted rod 9 when making the filter cloth operation, and filter cloth is flattened, and eliminates filter cloth fold.Be the adaptation different material, the needs of different filter clothes, bow type nutted rod 9 usefulness anchor ears are fixed on the nutted rod support 10, bend high adjustable angle, make the filter cloth stretching force suitable, both eliminated the filter cloth fold, make the frictional force minimum of filter cloth and nutted rod again, to improve the service life of filter cloth.Bow type nutted rod 9 is filter cake jack-up simultaneously, and filter cake fractures to split and separates with filter cloth, makes discharging more complete.
Described filter cloth auto-tensioning deviation correcting device is used for adjusting automatically the tensile force of filter cloth width and corrects the filter cloth sideslip automatically.Filter cloth fabric width two sideband D shape guide pads 8 are provided with guide roller, and filter cloth is introduced in the guider.When filter cloth normally moves, the stressed of filter cloth automatic takeup 2 both sides D shape guide pads 8 equates, be subjected to force unbalance sideslip to occur as filter cloth, the D shape guide pad 8 that is installed in filter cloth automatic takeup 2 both sides detects the filter cloth side-play amount, simultaneously spring 3 is subjected to force unbalance, increase with side-play amount, the stressed of spring 3 toward the middle skew of rotary drum one side increases gradually, filter cloth automatic takeup 2 retracts original position with filter cloth automatically, finally make both sides D shape guide pad 8 stress balances, allow walking of filter cloth on correct operating position.Filter cloth automatic takeup 2 also is provided with photoelectric induction device 16, photoelectric induction device 16 is installed in filter cloth automatic takeup 2 tops, each side one, in case the side-play amount of D shape guide pad 8 surpasses the scope of automatic deviation correction, after photoelectric induction device 16 obtains signal, send adjusting activity idler roller 15 instruction, adjust, in order to avoid filter cloth is stressed excessive and damage.
Described movable idler roller 15 is used for adjusting filter cloth length direction tightening force and regulating the sideslip that filter cloth running unbalance stress produces.The position of movable idler roller 15 is adjusted arbitrarily in vertical and horizontal direction, and the fabric width both sides are stressed does not wait even filter cloth is because a variety of causes causes, and can be easy to adjust to normal operating conditions yet.
The automatic regenerated from washing device of described filter cloth comprises discharge roller, discharging air blown, the anti-scavenge pipe of filter cloth and positive scavenge pipe.Filter cloth is after discharge roll 1 discharging, at first jet from the reverse side of filter cloth, make left filter cake break away from filter cloth, simultaneously filter cloth is dredged with compressed air, through the filter cloth scavenge pipe filter cloth is cleaned for anti-, positive and negative, positive four times repeatedly again, filter cloth is fully regenerated.
The utility model characteristics: the filter cloth automatic deviation rectifying device makes the tensile force of filter cloth keep impartial, the entangling of filter cloth Partially automatically at any time carry out; Filter cloth automatic washing regenerating unit, filter cloth enters automatic cleaning through behind the discharge zone, Tow sides with filter cloth clean high-pressure wash water in different positions through nozzle, make filter cloth hold back solid phase Realize the process of regeneration behind the particle. But filter cloth injection point and blowback point flexible combination make the filter cake discharging complete, With less washings, filter cloth is fully regenerated. And to the repetitive cycling utilization of washings, washing The important channel that the consumption of water and recycling be control water pollution, saving water resource, reduce production costs.
Claims (10)
1, a kind of rotary drum vacuum filter filter cloth regeneration and deviation correcting device, it is characterized in that, comprise: automatic deviation rectifying device, the automatic regenerated from washing device of filter cloth, described automatic deviation rectifying device comprises: filter cloth automatic takeup (2), arc nutted rod (9) and activity tensioning roller, horizontally on filter cloth sink (17), bow type nutted rod (9) position is higher than filter cloth automatic takeup (2) to these three parts successively; The automatic regenerated from washing device of described filter cloth comprises discharge roller (1), discharging air blown pipe (18), filter cloth reverse side scavenge pipe (19) and filter cloth front scavenge pipe (20), discharging air blown pipe (18) is positioned at the lower right of discharge roll (1), two cover filter cloth reverse side scavenge pipes (19) are positioned at discharging air blown pipe (18) lower right and bow type nutted rod (9) below, and two cover filter cloth front scavenge pipes (20) are positioned at the below of two filter cloth reverse side scavenge pipes (19) middle part and movable idler roller (15).
2, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device, it is characterized in that, after described bow type nutted rod (9) is arranged on filter cloth automatic takeup (2), be fixed on by two angle-steel fixed supports on the horizontal fixed plate of filter cloth sink (17) both sides; Described arc nutted rod (9) is the sinusoidal circular arc type bend pipe of intermediate projections, uses fixing hoop on nutted rod support (10).
3, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device, it is characterized in that, described filter cloth automatic takeup (2) is positioned at discharge roller (1) top, and two covers are arranged, and is symmetrical set on the horizontal fixed plate of filter cloth sink (17) both sides by the angle-steel support.
4, according to claim 1 or 3 described rotary drum vacuum filter filter cloth regeneration and deviation correcting devices, it is characterized in that described filter cloth automatic takeup (2) comprising: spring (3), fairlead (4), support (5), guide post (6), guide roller (7) and D shape gib block (8); Two guide rollers (7) are positioned at the front end of D type gib block (8), be splayed configuration, D shape gib block (8) is connected by bearing pin with guide post (6), and D shape gib block (8) is located in the fairlead (4), fairlead (4) is fixedlyed connected with support (5), and guide post (6) afterbody has spring (3).
5, according to claim 1 or 3 described rotary drum vacuum filter filter cloth regeneration and deviation correcting devices, it is characterized in that, described filter cloth automatic takeup (2) also is provided with photoelectric induction device (16), and photoelectric induction device (16) is located at filter cloth automatic takeup (2) top, each side one.
6, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device, it is characterized in that described activity tensioning roller comprises: horizontal adjusting screw(rod) (11), vertical adjusting screw rod (12), live bearing (13), movable roll guiding trestle (14), movable idler roller (15); Movable idler roller (15) two ends are provided with live bearing (13), vertical adjusting screw rod (12) is arranged at live bearing (13) top, live bearing (13) is vertical moving in the chute of movable roll guiding trestle (14) both sides, and a side of movable roll guiding trestle (14) is provided with horizontal adjusting screw(rod) (11).
7, rotary drum vacuum filter filter cloth regeneration according to claim 6 and deviation correcting device, it is characterized in that, described movable roll guiding trestle (14) is fixed by round pin and filter cloth sink (17) side plate, and the live bearing of movable idler roller (15) both sides is connected with the chute of movable roll guiding trestle (14).
8, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device is characterized in that, described discharge roller (1) surface has the screw type steel wire of projection, are positioned at the rotary drum filter discharge side outside.
9, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device is characterized in that, described discharging air blown pipe (18), and the direction of its puff prot and filter cloth filter cake discharge direction meet at right angles; Described filter cloth front scavenge pipe (20), its Butterworth Hatch and walking of filter cloth acutangulate layout.
10, rotary drum vacuum filter filter cloth regeneration according to claim 1 and deviation correcting device is characterized in that, described filter cloth reverse side scavenge pipe (19) and filter cloth front scavenge pipe (20) are provided with nozzle (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200675515U CN201001989Y (en) | 2007-03-01 | 2007-03-01 | Device for regenerating and rectifying for rotary drum vacuum filtering machine filter cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200675515U CN201001989Y (en) | 2007-03-01 | 2007-03-01 | Device for regenerating and rectifying for rotary drum vacuum filtering machine filter cloth |
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| Publication Number | Publication Date |
|---|---|
| CN201001989Y true CN201001989Y (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200675515U Expired - Fee Related CN201001989Y (en) | 2007-03-01 | 2007-03-01 | Device for regenerating and rectifying for rotary drum vacuum filtering machine filter cloth |
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| Country | Link |
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| CN (1) | CN201001989Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728131A (en) * | 2012-07-11 | 2012-10-17 | 上海奥德水处理科技有限公司 | Reused water and high-pressure gas mixed cleaning device |
| CN104107579A (en) * | 2014-07-31 | 2014-10-22 | 梁均全 | Arched strip type negative-pressure filter device |
| CN106045266A (en) * | 2016-07-13 | 2016-10-26 | 佛山科学技术学院 | High-precision large-flux belt-type filtration and concentration equipment based on filter cloth |
| CN108854198A (en) * | 2018-07-24 | 2018-11-23 | 宝钢股份黄石涂镀板有限公司 | A kind of synchronous pressure roll-type filter bed device |
-
2007
- 2007-03-01 CN CNU2007200675515U patent/CN201001989Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728131A (en) * | 2012-07-11 | 2012-10-17 | 上海奥德水处理科技有限公司 | Reused water and high-pressure gas mixed cleaning device |
| CN104107579A (en) * | 2014-07-31 | 2014-10-22 | 梁均全 | Arched strip type negative-pressure filter device |
| CN104107579B (en) * | 2014-07-31 | 2016-08-03 | 梁均全 | A kind of arch belt negative pressure filtration device |
| CN106045266A (en) * | 2016-07-13 | 2016-10-26 | 佛山科学技术学院 | High-precision large-flux belt-type filtration and concentration equipment based on filter cloth |
| CN106045266B (en) * | 2016-07-13 | 2019-06-18 | 佛山科学技术学院 | A kind of belt type filter concentrator on the basis of the big flux filter cloth of high-precision |
| CN108854198A (en) * | 2018-07-24 | 2018-11-23 | 宝钢股份黄石涂镀板有限公司 | A kind of synchronous pressure roll-type filter bed device |
| CN108854198B (en) * | 2018-07-24 | 2021-02-19 | 宝钢股份黄石涂镀板有限公司 | Synchronous press roll type filter bed device |
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| ASS | Succession or assignment of patent right |
Owner name: JIANGSU GREENWAY ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: SHANGHUI JIAO TONG UNIVERSITY XINDE ENVIRONMENT PROTECT CO., LTD. Effective date: 20130311 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200030 XUHUI, SHANGHAI TO: 215332 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130311 Address after: 215332 Jiangsu Province town Kunshan city flower road, Zhonghuan Plaza No. 169 21 storey office building 1 unit 2128, room 2129 Patentee after: Jiangsu Greenway Environmental Protection Technology Co., Ltd. Address before: 200030 Nanyang building, 667 Panyu Road, Shanghai, 4G Patentee before: Shanghai Xinde Environmental Protection Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20150301 |
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| EXPY | Termination of patent right or utility model |