CN201686602U - Extrusion type sludge dewatering system - Google Patents
Extrusion type sludge dewatering system Download PDFInfo
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- CN201686602U CN201686602U CN2010201824434U CN201020182443U CN201686602U CN 201686602 U CN201686602 U CN 201686602U CN 2010201824434 U CN2010201824434 U CN 2010201824434U CN 201020182443 U CN201020182443 U CN 201020182443U CN 201686602 U CN201686602 U CN 201686602U
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- sludge
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- extrusion
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Abstract
The utility model discloses an extrusion type sludge dewatering system. A sludge stirring tank, a reactor and an extrusion type dewatering machine are connected sequentially via a sludge delivery pipe, an inlet of the sludge stirring tank is connected with a sewage settling tank used for storing sludge via a first sludge pump, a second sludge pump is arranged on the sludge delivery pipe between the sludge stirring tank and the reactor, a sludge conveyor is arranged below a sludge outlet of the extrusion type dewatering machine, a chemical outlet pipe of a first chemical feeding device is connected with the sludge delivery pipe at the inlet of the sludge stirring tank, and a chemical outlet pipe of a second chemical feeding device is connected with a chemical feeding hole of the reactor. The extrusion type sludge dewatering system is compact in structure, simple in operation, high in automation degree and separation and recovery rate and free of secondary pollution, and has better economical benefit in terms of saving energy and water, protecting environment and the like. In addition, the extrusion type sludge dewatering system has a module combination function, so that the sludge dewatering system can be used for treating more sewage after being added with single units.
Description
Technical field
The utility model relates to a kind of environmental protection equipment, specifically is a kind of extrusion sludge dewatering system, and its effect is with the separation of dewatering of oil, oil-containing, sewage containing methanol mud that gas field development produced.
Background technology
At present, at oil, oil-containing that gas field development produced, contain in the pure sewage of low concentration mud, also there is not equipment from sludge water, mud to be separated.Be originally that the oil-containing that produces, sewage containing methanol mud are moved sludge sump to car in oil recovery, gas and oily(waste)water concentration technology, sewage mud in the sludge sump is by sun natural drying, water, methyl alcohol and condensate oil in the evaporation mud behind the evaporation airing, are transported mud the postpone burning or are buried ground with car again.The shortcoming of this processing mode is: there are unsafe factor in 1, spontaneous evaporation, airing, the light oil (as condensate oil), methyl alcohol, the former wet goods that contain volatile in oil-containing, the sewage containing methanol mud, has toxicity, explosive, harm such as corrodibility is strong, easily blast if any naked light and to cause security incident, so sludge sump only is applicable to that ethereal oil content is little, do not have poison, non-explosive, do not have corrosive occasion.2, the wasting of resources can't be recycled methyl alcohol in the mud and condensate oil.3, contaminate environment, a large amount of volatile light oil are diffused in the air, can cause surrounding enviroment to have a strong impact on.4, need to build sludge sump, increased processing cost.5, the treatment time long because sludge treatment needs long-time spontaneous evaporation, processing efficiency is low.
The utility model content
Technical problem to be solved in the utility model provides the dewatering system of the sewage of low concentration mud of a kind of handling oil gas field oil-containing, alcohol, it is simple in structure, the moisture percentage in sewage sludge of separating is low, the rate of recovery height of oil, methyl alcohol, and the existing relatively method of processing efficiency improves greatly.
Extrusion sludge dewatering system described in the utility model, it mainly comprises sludge agitator tank, reactor, extrusion dewaterer, mud transfer roller, first chemicals dosing plant and second chemicals dosing plant, described sludge agitator tank, reactor and extrusion dewaterer are connected successively by sludge carrier pipe, the sludge agitator tank inlet connects the sewage slurry tank that is used to store mud through first sludge pump, and the sludge carrier pipe between sludge agitator tank and the reactor is provided with second sludge pump; The mud transfer roller is positioned at the mud mouth below of extrusion dewaterer, and the drug discharging tube of first chemicals dosing plant connects the sludge carrier pipe of sludge agitator tank ingress; The dosing mouth of the drug discharging tube ligation device of second chemicals dosing plant.
Above-mentioned sludge agitator tank comprises tank body, central reactor, oil collecting ring, first electric motor, stirring rake, motorized valve, described first electric motor mounting is at the tank body top, the output shaft of first electric motor extends to the tank body inner bottom part always, the coaxial formula central reactor that installs and fixes in tank body, the mouth of pipe of sludge carrier pipe is the oblique insertion central reactor of level top, the oil collecting ring of hollow be located at the central reactor top and with the central reactor internal communication, oil collecting ring is connected to oil header with the light oil output sludge agitator tank of collecting; Stirring rake is installed in the first motor output shaft bottom, and motorized valve is installed on the sludge carrier pipe that is stretched out by tank base.
As improvement of the present utility model, described central reactor is the stepped circular cone bench-type of thin-walled hollow, connects water eliminator in the central reactor bottom by some vertical grids.Stirring rake can be cross V-type stirring rake.
Described reactor comprises setting device and reaction unit two portions, described setting device and reaction unit are that two centres are only by the separated seal case of dividing plate, the sludge stream circulation passage that is communicated with setting device and reaction unit is left in the dividing plate top, be provided with the mud inlet in the setting device bottom, above inlet, be provided with the backgauge decompression board, second electric motor is equipped with at the reaction unit top, the output shaft of second electric motor passes the reaction unit roof and extends to the bottom, on second motor output shaft, agitating vane is housed, the reaction unit upper portion side wall is provided with sludge outlet and connects extrusion dewaterer by sludge carrier pipe, and the reaction unit roof also is provided with dosing mouth to insert the drug discharging tube of second chemicals dosing plant.
As improvement of the present utility model, be provided with upflow tube and fluid level controller in setting device inside, the overflow port of described upflow tube is located at the inner predetermined height of setting device, and upflow tube connects sludge agitator tank, and fluid level controller is located on the setting device roof and controls second sludge pump and opens and closes.
Described extrusion dewaterer comprises the tunnel like extruser that is obliquely installed, the low end of extruser is provided with the mud inlet, a higher end is provided with mud mouth, is provided with water tank below extruser, and water tank and extruser are communicated with by the water falling hole that is located at tunnel bottom.
As improvement of the present utility model, on the tunnel of tunnel like extruser inwall, be provided with the some groups of set collars that mate mutually and the ring that moves about, and set collar and the end play between the ring of moving about are entered the mouth by mud and diminish gradually to the mud mouth direction.The screw extruding shaft pitch of tunnel like extruser is diminished to the mud mouth direction gradually by the mud inlet.Mud mouth inboard at described tunnel like extruser also is provided with by pressing plate.
The beneficial effects of the utility model:
1, system's formation is simple, easy and simple to handle, and volume is little, automatic degree height, and maintenance workload is few, convenient management, energy consumption is low, and running cost is few.
2, all devices is assembled on the common bed, is convenient to transportation, conveniently installs.
3, mud handling capacity is manually adjustable, not influenced by tank level height and moisture percentage in sewage sludge, and the moisture percentage in sewage sludge of separating is low, and oil, Methanol Recovery efficient height do not have secondary pollution, have favorable economic benefit at aspects such as energy-conservation, water saving, protection environment.
4, have the combined modules function,, need not to carry out scrap build, only need to increase unit and get final product when handling bigger sewage.
Description of drawings
Fig. 1 is a system construction drawing of the present utility model,
Fig. 2 is the structural representation of sludge agitator tank among Fig. 1,
Fig. 3 be Fig. 2 A-A to sectional view,
Fig. 4 is the structural representation of reactor among Fig. 1,
Fig. 5 is the structural representation of extrusion dewaterer among Fig. 1.
Fig. 6 is the structural representation of set collar among Fig. 5,
Fig. 7 is the structural representation of Fig. 5 middle reaches rotating ring.
Embodiment
It is external that whole plant of the present utility model is installed on the sewage slurry tank, with sludge pump jar in a sludge water freely to extract the pond out external.As Fig. 1, the utility model mainly is made up of first sludge pump 1, sludge agitator tank 2, second sludge pump 3, reactor 4, extrusion dewaterer 5, mud transfer roller 6, first chemicals dosing plant 7, second chemicals dosing plant 8 etc., each equipment can be installed on the same sled seat 10, is convenient to moving of whole plant like this.The mud pipe that advances of first sludge pump 1 is connected with the mud extraction mouth of a river, sewage slurry tank (not shown) bottom, be equipped with valve on the sludge out pipe of first sludge pump 1, with pump oil-containing, sewage containing methanol mud is promoted to sludge agitator tank 2 and stirs and mix, at stirred pot bottom outlet place second sludge pump 3 is installed, oil-containing, sewage containing methanol mud is promoted to reactor 4, reactor 4 is when pumping into sewage mud, add coagulating agent by first chemicals dosing plant 7, flocculation agent, fully enter extrusion dewaterer 5 after the flocculation reaction and carry out the sewage separation, contain＜80% dewatered sludge squeeze-up outside, reach the dehydration purpose, the mud that falls has defeated mud machine 6 to be passed to move on the car to burn and burns, and separates fuel-displaced, water, methyl alcohol and condensate oil enter oily water separation and extraction system is extracted.
Below specifically introducing the details of each major equipment respectively forms.
1, sludge agitator tank
As Fig. 2, sludge agitator tank mainly is made up of tank body, central reactor 21, oil collecting ring 22, first electric motor 23, stirring rake 25, motorized valve 26, wherein:
First electric motor 23 is installed in the tank body top, its output shaft extends to the tank body inner bottom part, the coaxial formula central reactor 21 that installs and fixes in tank body, this central reactor 21 is the stepped circular cone bench-type of thin-walled hollow, connects water eliminator 28 in the central reactor bottom by some vertical grids 27.The mouth of pipe of sludge carrier pipe is the oblique insertion central reactor of level 21 tops, and oil collecting ring 22 is located at the central reactor top and is communicated with the reaction chamber 24 of central reactor inside, and oil collecting ring 22 is connected to oil header with the light oil output sludge agitator tank of collecting 2; Stirring rake 25 is installed in the first motor output shaft bottom, and this stirring rake 25 is a cross V-type stirring rake.Motorized valve 26 is installed on the sludge carrier pipe that is stretched out by tank base.As Fig. 3, cross V-type stirring rake is made up of the blade of, v font four band 30-degree angle degree, rotating speed of agitator is 3～5r/min, it turns to opposite with the spirrillum water (flow) direction, it is more even that sewage mud is stirred, mud is not separated with water, make not sedimentation of mud, for follow-up stable and the quantitative dosing flocculation reaction lays the foundation.
Concentration is squeezed into sludge agitator tank at the lower concentration oily(waste)water mud of 2000mg/L～60000mg/L by first sludge pump 1, design by spout, make sewage mud horizontal plane with the off-centered oblique reaction chamber 24 that sprays in the central reactor in, water inlet begins to add coagulating agent by first chemicals dosing plant 7 simultaneously, make medicament and water inlet obtain filling a part hybrid reaction, sewage mud rotates into central reactor from top, in the reaction chamber of central reactor, be the eddy flow state to prolong current through line, guarantee the reaction times, the little oil droplet of dispersive passes through breakdown of emulsion in the water, contact-impact becomes big oil droplet, under buoyancy and sluicing, particle diameter become big oil droplet and water in oil slick be easy to be floated to the import top and form oil reservoir, the most oil slick that is gathered in the central reactor top is drained the oil automatically by oil collecting ring.The current spirrillum enters the negative area, bottom, fall and flow in the tank body again on grade water plate, directly do not wash away the mud of sludge agitator tank bottom by shelves water plate, solidliquid mixture in the equipment is laminar flow regime, be beneficial to the settlement separate of silt particle, in order not make sludge settling solid, the utility model is provided with cross V-type stirring rake, rotating speed 3～5r/min turns on the contrary with the spirrillum water (flow) direction, and it is more even that sewage mud is stirred, mix more thorough, treat to open motorized valve automatically behind the even 10～15min of sludge water stirrer, open second sludge pump 2 of sludge agitator tank bottom in the time of opening of valves, the sewage mud that stirs is risen to setting device in the reactor, add dose in order to reduce, and effective, save cost, sludge agitator tank is a crux.
2, reactor
As Fig. 4, reactor 4 comprises setting device 41 and reaction unit 42 two portions, described setting device 41 and reaction unit 42 are that two centres are only by dividing plate 43 separated seal cases, the sludge stream circulation passage that is communicated with setting device 41 and reaction unit 42 is left in dividing plate 43 tops, be provided with the mud inlet in setting device 41 bottoms, above inlet, be provided with backgauge decompression board 44, setting device 41 inside are provided with upflow tube 46 and fluid level controller 47, the overflow port of described upflow tube 46 is located at the inner predetermined height of setting device, upflow tube 46 connects sludge agitator tank 2, and fluid level controller 47 is located on the setting device roof and controls second sludge pump 3 and opens and closes.Second electric motor 45 is equipped with at reaction unit 42 tops, the output shaft of second electric motor 45 passes reaction unit 42 roofs and extends to the bottom, on second motor output shaft, agitating vane is housed, reaction unit 42 upper portion side wall are provided with sludge outlet and connect extrusion dewaterer 5 by sludge carrier pipe, and reaction unit 42 roofs also are provided with dosing mouth to insert the drug discharging tube of second chemicals dosing plant 8.
By second sludge pump 3 sewage mud is promoted in the setting device 41, certainly flow into reaction unit 42 behind the full liquid equably, this setting device is provided with the backgauge decompression board, what make pressure comes liquid decompression once, evenly rise, can discharge apparatus, at the setting device center upflow tube 46 is set, come liquid to get back in the sludge agitator tank unnecessary during big and this device processes ability of Tathagata liquid measure, fluid level controller 47 has been installed at the top simultaneously, Tathagata hydroful stops second sludge pump 3 automatically to the contact of fluid level controller, guarantees the normal operation of total system.
When sewage mud from setting device 41 equably when flowing into reaction unit 42, add macromolecule organic flocculating agent by second chemicals dosing plant 8, start whipping appts, this whipping appts adopts speed control by frequency variation, according to different sewage mud, the medicament that adds is also different, mixing speed is also different, after the sewage mud dosing flocculation, little alumen ustum becomes big and blocky alumen ustum, the benefit of speed control by frequency variation is to prevent from the good big alumen ustum of flocculation is smashed, and fully gravity flow enters extrusion dewaterer 51 separation of dewatering after the flocculation reaction.
3, extrusion dewaterer
As Fig. 5, extrusion dewaterer 5 comprises the tunnel like extruser 51 that is obliquely installed, extruser 51 low ends are provided with mud inlet 52, a higher end is provided with mud mouth 53, be provided with water tank 54 below extruser 51, water tank 54 and extruser 51 are communicated with by the water falling hole 55 that is located at tunnel bottom.The tunnel inwall of tunnel like extruser 51 is provided with some groups of set collars that mate mutually 56 and the ring 57 that moves about, and set collar 56 and the end play of moving about between the ring 57 are diminished to the mud mouth direction gradually by the mud inlet.Screw extruding shaft pitch is also diminished to the mud mouth direction gradually by the mud inlet simultaneously.Be provided with by pressing plate in mud mouth 53 inboards.
As Fig. 6,7, set collar 56 is fixed by four axles that are installed on the tunnel inwall, between per 2 set collars, is added with 1 set-up piece 58 respectively four shaft connection places, the ring 57 that moves about is installed between four set-up pieces that four angles of set collar install, and the ring that moves about so can not wander off and be stuck.
Set-up piece 58 is thicker than moving about ring plate, and the internal diameter of the ring plate of moving about is bigger 2 than the external diameter of screw extruding shaft blade.Extruser integral body can be divided into enriching section and dewatering period two portions, mud mouth from the sewage import of enriching section to dewatering period, the pitch of screw extruding shaft diminishes gradually, fixed ring piece and the gap of moving about between the ring plate also diminish gradually, and wherein the set-up piece of dewatering period is than the set-up piece of enriching section thick 10～20.Under action of gravity, water leaches from the ring plate gap that relatively moves, and solids then constantly is compressed at the volley, realizes concentrating fast.The sludge outlet place is provided with the back pressure plate, with the pressure in the adjusting screw chamber.The extrusion sludge dewatering device is finished concentrated being operated in one with press dewatering of mud, has replaced traditional filter cloth and centrifugal filter type with the delicate filter bulk-mode of uniqueness.
The screw-blade of screw extruding shaft has certain angle on the circumference of extruding axle, rotation along with screw extruding shaft, the promotion ring plate of moving about is constantly rotated, and equipment relies on set collar and the mobile realization continuous self-cleaning that moves about between the ring is washed process, thereby has avoided blockage problem dexterously.
Remaining chemicals dosing plant and mud transfer roller etc. all are existing installations, have just carried out adaptability reform as required, do not repeat them here.
Claims (10)
1. extrusion sludge dewatering system, it is characterized in that mainly comprising sludge agitator tank (2), reactor (4), extrusion dewaterer (5), mud transfer roller (6), first chemicals dosing plant (7) and second chemicals dosing plant (8), described sludge agitator tank (2), reactor (4) and extrusion dewaterer (5) are connected successively by sludge carrier pipe, sludge agitator tank (2) inlet connects the sewage slurry tank that is used to store mud through first sludge pump (1), and the sludge carrier pipe between sludge agitator tank (2) and the reactor (4) is provided with second sludge pump (3); Mud transfer roller (6) is positioned at the mud mouth below of extrusion dewaterer (5), and the drug discharging tube of first chemicals dosing plant (7) connects the sludge carrier pipe of sludge agitator tank (2) ingress; The dosing mouth of the drug discharging tube ligation device (4) of second chemicals dosing plant (8).
2. extrusion sludge dewatering system according to claim 1, it is characterized in that sludge agitator tank (2) comprises tank body, central reactor (21), oil collecting ring (22), first electric motor (23), stirring rake (25), motorized valve (26), described first electric motor (23) is installed in the tank body top, the output shaft of first electric motor (23) extends to the tank body inner bottom part always, the coaxial central reactor (21) that installs and fixes formula in tank body, the mouth of pipe of sludge carrier pipe is the oblique insertion central reactor of level (21) top, the oil collecting ring of hollow (22) be located at the central reactor top and with the central reactor internal communication, oil collecting ring (22) is connected to oil header with the light oil output sludge agitator tank of collecting (2); Stirring rake (25) is installed in the first motor output shaft bottom, and motorized valve (26) is installed on the sludge carrier pipe that is stretched out by tank base.
3. extrusion sludge dewatering system according to claim 2 is characterized in that described central reactor (21) is the stepped circular cone bench-type of thin-walled hollow, connects water eliminator (28) in the central reactor bottom by some vertical grids (27).
4. extrusion sludge dewatering system according to claim 2 is characterized in that described stirring rake (25) is a cross V-type stirring rake.
5. according to any one described extrusion sludge dewatering system of claim 1-4, it is characterized in that described reactor (4) comprises setting device (41) and reaction unit (42) two portions, described setting device (41) and reaction unit (42) are that two centres are only by the separated seal case of dividing plate (43), the sludge stream circulation passage that is communicated with setting device (41) and reaction unit (42) is left in dividing plate (43) top, be provided with the mud inlet in setting device (41) bottom, above inlet, be provided with backgauge decompression board (44), second electric motor (45) is equipped with at reaction unit (42) top, the output shaft of second electric motor (45) passes reaction unit (42) roof and extends to the bottom, on second motor output shaft, agitating vane is housed, reaction unit (42) upper portion side wall is provided with sludge outlet and connects extrusion dewaterer (5) by sludge carrier pipe, and reaction unit (42) roof also is provided with dosing mouth to insert the drug discharging tube of second chemicals dosing plant (8).
6. extrusion sludge dewatering system according to claim 5, it is characterized in that setting device (41) inside is provided with upflow tube (46) and fluid level controller (47), the overflow port of described upflow tube (46) is located at the inner predetermined height of setting device, upflow tube (46) connects sludge agitator tank (2), and fluid level controller (47) is located on the setting device roof and controls second sludge pump (3) and opens and closes.
7. according to any one described extrusion sludge dewatering system of claim 1-4, it is characterized in that described extrusion dewaterer (5) comprises the tunnel like extruser (51) that is obliquely installed, the low end of extruser (51) is provided with mud inlet (52), a higher end is provided with mud mouth (53), be provided with water tank (54) in extruser (51) below, water tank (54) and extruser (51) are communicated with by the water falling hole (55) that is located at tunnel bottom.
8. extrusion sludge dewatering system according to claim 7, the tunnel inwall that it is characterized in that described tunnel like extruser (51) is provided with the some groups of set collars that mate mutually (56) and the ring (57) that moves about, and set collar (56) and the end play of moving about between the ring (57) are diminished to the mud mouth direction gradually by mud inlet.
9. extrusion sludge dewatering system according to claim 7 is characterized in that the screw extruding shaft pitch of described tunnel like extruser (51) is diminished to the mud mouth direction gradually by the mud inlet.
10. extrusion sludge dewatering system according to claim 7 is characterized in that mud mouth (53) inboard of described tunnel like extruser is provided with by pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201824434U CN201686602U (en) | 2010-05-07 | 2010-05-07 | Extrusion type sludge dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201824434U CN201686602U (en) | 2010-05-07 | 2010-05-07 | Extrusion type sludge dewatering system |
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| Publication Number | Publication Date |
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| CN201686602U true CN201686602U (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201824434U Expired - Fee Related CN201686602U (en) | 2010-05-07 | 2010-05-07 | Extrusion type sludge dewatering system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823829A (en) * | 2010-05-07 | 2010-09-08 | 江苏思诺环保机械科技有限公司 | Extrusion sludge dewatering system |
| CN103626377A (en) * | 2012-08-21 | 2014-03-12 | 绍兴县永通丝绸印染有限公司 | Sludge dewatering and deodorizing system for printing and dyeing mill |
| CN104193138A (en) * | 2014-09-19 | 2014-12-10 | 江苏涞森环保设备有限公司 | Sludge dewatering system |
| CN107670544A (en) * | 2017-11-09 | 2018-02-09 | 东莞市联洲知识产权运营管理有限公司 | A kind of chemicals dosing plant on sludge dewatering mixer |
| CN107879588A (en) * | 2017-10-30 | 2018-04-06 | 无锡康柏斯机械科技有限公司 | A kind of oil-containing, containing alcohol sludge dewatering equipment and its dewatering |
-
2010
- 2010-05-07 CN CN2010201824434U patent/CN201686602U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823829A (en) * | 2010-05-07 | 2010-09-08 | 江苏思诺环保机械科技有限公司 | Extrusion sludge dewatering system |
| CN103626377A (en) * | 2012-08-21 | 2014-03-12 | 绍兴县永通丝绸印染有限公司 | Sludge dewatering and deodorizing system for printing and dyeing mill |
| CN104193138A (en) * | 2014-09-19 | 2014-12-10 | 江苏涞森环保设备有限公司 | Sludge dewatering system |
| CN107879588A (en) * | 2017-10-30 | 2018-04-06 | 无锡康柏斯机械科技有限公司 | A kind of oil-containing, containing alcohol sludge dewatering equipment and its dewatering |
| CN107670544A (en) * | 2017-11-09 | 2018-02-09 | 东莞市联洲知识产权运营管理有限公司 | A kind of chemicals dosing plant on sludge dewatering mixer |
| CN107670544B (en) * | 2017-11-09 | 2019-10-08 | 睢宁秋歌农业发展有限公司 | A kind of chemicals dosing plant on sludge dewatering blender |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU SIAO ENVIRONMENTAL PROTECTION TECHNOLOGY C Free format text: FORMER OWNER: JIANGSU SINUO ENVIRONMENTAL PROTECTION MACHINERY S+T CO., LTD. Effective date: 20150625 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150625 Address after: Yixing Gaocheng town high in Jiangsu province Wuxi city village 214200. Patentee after: Jiangsu Siao Environmental Protection Science & Technology Co., Ltd. Address before: 214251, No. 64 East Road, Guan Lin Town, Yixing, Jiangsu Patentee before: Jiangsu Sinuo Environmental Protection Machinery Technology Co., Ltd. |
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| 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: 20101229 Termination date: 20160507 |