CN201534023U - Filtering, washing and drying integrated continuous pressure filter - Google Patents
Filtering, washing and drying integrated continuous pressure filter Download PDFInfo
- Publication number
- CN201534023U CN201534023U CN2009201442085U CN200920144208U CN201534023U CN 201534023 U CN201534023 U CN 201534023U CN 2009201442085 U CN2009201442085 U CN 2009201442085U CN 200920144208 U CN200920144208 U CN 200920144208U CN 201534023 U CN201534023 U CN 201534023U
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- China
- Prior art keywords
- filter
- inlet
- washing
- predrying
- outlet
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- 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 - Lifetime
Links
- 238000005406 washing Methods 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 title claims abstract description 15
- 238000001035 drying Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 239000000706 filtrate Substances 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 239000000047 product Substances 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 239000012452 mother liquor Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 3
- 239000011521 glass Substances 0.000 abstract 1
- 239000012065 filter cake Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a filtering, washing and drying integrated continuous pressure filter, which is structurally characterized in that a filter body takes a shape of a cylinder; the surface of the cylinder is provided with a rotating drum, a secondary washing water inlet, a pressurizing unit, a predrying medium inlet, a filter cloth cleaning mechanism, a filtrate inlet, a primary washing water inlet, a filter unit chamber and a filtrate flowing pipe; a product outlet is positioned on the bottom of the filter body; the inside of the product outlet is provided with a scraper system and sight glass; the filtrate flowing pipe is positioned in the center of the cylinder; the filter body is positioned between two bearing brackets; and the periphery of a control distribution head system is provided with a distribution control head gland, a secondary washing mother water outlet, a predrying medium outlet, a back blowing gas inlet I, a back blowing gas inlet II, a back blowing gas inlet III, a filtrate outlet and a secondary washing mother water outlet. The utility model has the advantages of compact machine type, strong structural integrity and small occupied area, integrates functions of filtering, washing, predrying and discharging into one whole body and overcomes limitations of the existing filter in the using process.
Description
Technical field
The utility model relates to a kind of collection filtration, washing, the incorporate continuous type of production filter-press of functions/drying.
Background technology
The filtrate of different material is with press filtration continuously on the filter-press rotary drum, and make the filtration, washing of filtrate, predrying, discharging specific indoor being processed separately of different pressures territory element, the filter cake of separating, filtrate, dry gas all can reclaim respectively, thereby satisfy industrial multiduty demand.Existing filter mainly is divided into following several structure,
(1) a kind of pressure filtration equipment of PTA sector application is to filter the pressure of side by the raising mother liquor, increases screen pack both sides pressure reduction and improves filter efficiency, thereby finish the filtration of PTA,
Its technical limitation is that the rotary drum internal drainage is not smooth, and the pressure reduction of screen pack both sides is wayward.
(2) the filter pressing filter (patent No.: 88221356.3) in a kind of rotary drum pressing filter (patent No. is CN97223279.6) and a kind of cartridge type, this technology is a plurality of pressurization cell bodies for the filter rotary drum has, pressurize simultaneously and have certain compressed air in the storehouse, form draught head by distributing valve and open to atmosphere moisture trap, filter cake and washings in the differential pressure action lower groove are recovered.Its technical limitation is that drum rotating forms filter cake, washs again, causes the water content of filter cake higher, and the regular type of filter cake is bad.
(3) (patent No.: 97223279.6), this cleaning technique is conventional versatility technology to the filter cloth cleaning device used of a kind of vacuum filter and pressing filter, and its limitation is: can't guarantee after filter cloth cleans whether the filter residue in each filter mesh is cleaned out.Influence filter effect.
Summary of the invention
In view of above-mentioned existing filter limitation in use, the purpose of this utility model is to provide a kind of filtration, washing, drying integrated continous way filter-press.
The purpose of this utility model is achieved through the following technical solutions:
A kind of filtration, washing, drying integrated continous way filter-press mainly are made up of body, framework 9, presser unit, control dispensing head system, rotary drum, filter element chamber, shedding mechanism, filter cloth wiper mechanism and transmission system.Body is a tubular, and the tube surface is furnished with rotary drum, secondary cleaning water inlet, presser unit, predrying medium inlet, filter cloth wiper mechanism, filtered fluid inlet, rinse water inlet, filter element chamber and a filtrate flows pipe; Products export is positioned at the Lower Half of body, is provided with doctor blade system, visor in it, and the filtrate flows pipe occupies the center of tube, and body is located between support of bearing I and support of bearing II; The bottom is provided with shedding mechanism and reveals mouth; Transmission system is connected with speed change system, and speed change system is connected with body with control dispensing head system by axle; Control dispensing head system likeness in form disk, dish are provided with and distribute control head gland, secondary cleaning mother liquor water out, predrying media outlet, blowback air inlet I, blowback air inlet II, blowback air inlet III, filtered fluid outlet, secondary cleaning mother liquor water out in week.
The utility model has the advantages that:
1, the utility model type compactness, the speed governing rotation in the pressure frame of packing into of control dispensing head system, speed change system, transmission system and filter-press rotary drum, structural integrity is strong, floor space is little, union filtration, washing, predrying, discharging function one, economical and practical, overcome existing filter limitation in use.
2, the utility model is widely used in the fields such as precuring, food, dyestuff, pigment, cellulose derivative, medicine of M-phthalic acid, PTA, aromatic acid, plastics and precuring thereof, paint and resin thereof, is with press filtration continuously for the filtrate of different material one cover novel device is provided.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is Fig. 1 body end view.
Fig. 3 controls the dispensing head end view for Fig. 1.
Description of reference numerals is as follows:
The 1-support of bearing I 2-body 3-support of bearing II 4-control dispensing head 5-of system speed change system 6-transmission system 7-driving motor 8-protective cover 9-framework 10-shedding mechanism 11-frame 12-reveals a mouthful rinse water entrance of a 13-rotary drum 14-secondary cleaning water inlet 15-presser unit 16-predrying medium inlet 17-doctor blade system 18-visor 19-products export 20-filter cloth cleaning mechanism 21-filtered fluid entrance 22-23-filter element chamber 24-filtrate flows pipe 25-and distributes the outlet of the predrying media outlet 28-of control head gland 26-secondary cleaning mother liquid coming outlet 27-blowback air entrance I 29-blowback air entrance II 30-blowback air entrance III 31-filtered fluid outlet 32-secondary cleaning mother liquid coming
The specific embodiment
Shown in Fig. 1-2, a kind of filtration, washing, drying integrated continous way filter-press mainly are made up of body 2, framework 9, presser unit 15, control dispensing head system 4, rotary drum 13, filter element chamber 23, shedding mechanism 10, filter cloth wiper mechanism 20 and transmission system 6.Body 2 is a tubular, the tube surface is furnished with rotary drum 13, secondary cleaning water inlet 14, presser unit 15, predrying medium inlet 16, filter cloth wiper mechanism 20, filtered fluid inlet 21, rinse water inlets 22, filter element chamber 23 and filtrate flows pipes 24, products export 19 is positioned at the Lower Half of body 2, be provided with doctor blade system 17 and visor 18 in it, filtrate flows pipe 24 occupies the center of tube, body 2 and be located in support of bearing I1 and support of bearing II3 between, the bottom is provided with shedding mechanism 10 and reveals mouthfuls 12; Driving motor 7 is connected with speed change system 5, and speed change system 5 is connected with body 2 with control dispensing head system 4 by axle, and protective cover 8 is housed on the speed change system 5, and motor 7 and body 2 are located on the frame 11.
As shown in Figure 3, system dispensing head system 4 circumference are provided with and distribute control head gland 25, secondary cleaning mother liquor water out 26, predrying media outlet 27, blowback air inlet I28, blowback air inlet II29, blowback air inlet III 30, filtered fluid outlet 31, secondary cleaning mother liquor water out 32.
Control dispensing head system 4, speed change system 5, transmission system 6 and filter-press rotary drum 13 are with mode of speed regulation entad rotation in a pressure frame 9; 9 of rotary drum 13 and frameworks adopt packing seal, rotary drum 13 pressurized unit 15 are divided into different air tight housings, the surface of rotary drum 13 is made up of with the filter element chamber 23 that control dispensing head system 4 is connected a filtrate flows pipe 24, under pressurized state, suspension constantly enters filter element chamber 23, filter cake is saved bit by bit in filter element chamber 23, and along with the rotation of rotary drum 13 is transported in subsequently the element cell, filter as requested, washing, predrying can in one or several unit, finishing, after element cell 23 is filled up fully by filter cake, rinse water and drying medium are respectively from a rinse water inlet 22, secondary cleaning water inlet 14 and predrying medium inlet 16 are imported respectively, and single-phase displacement fluid guarantees to pass filter cake.In the non-pressure discharge zone, make the filter cake discharging, filter filter cloth afterwards and cleaned respectively and blowback by the blowback air of blowback air inlet III30 in filter cloth wiper mechanism 20 and the control dispensing head system 4 by the doctor blade system 17 of shedding mechanism 10 and the blowback air of 4 blowback airs inlet I28 of control dispensing head system and blowback air inlet II29.According to design, the filter cloth cleaning fluid can be taken as the recycling of filter cake cleaning solution, avoids being filtered liquid-solid bulk diffusion with this.Mother liquor and cleaning solution arrive control dispensing head systems 4 by filter element chamber 23 and filtrate flows pipe 24, and different here filtrate and blowback air will be separated, discharge and reclaim.
Claims (2)
1. filtration, washing, drying integrated continous way filter-press, mainly be by body (2), framework (9), presser unit (15), control dispensing head system (4), rotary drum (13), filter element chamber (23), shedding mechanism (10), filter cloth wiper mechanism (20) and transmission system (6) are formed, it is characterized in that body (2) is a tubular, the tube surface is furnished with rotary drum (13), secondary cleaning water inlet (14), presser unit (15), predrying medium inlet (16), filter cloth wiper mechanism (20), filtered fluid inlet (21), a rinse water inlet (22), filter element chamber (23) and filtrate flows pipe (24); Products export (19) is positioned at the Lower Half of body (2), be provided with doctor blade system (17), visor (18) in it, filtrate flows pipe (24) occupies the center of tube, and body (2) is located between support of bearing I (1) and support of bearing II (3), and the bottom is provided with shedding mechanism (10) and reveals mouthful (12); Transmission system (6) is connected with speed change system (5), and speed change system (5) is connected with body (2) with control dispensing head system (4) by axle.
2. a kind of filtration according to claim 1, washing, drying integrated continous way filter-press, it is characterized in that above-mentioned control dispensing head system (4) likeness in form disk, dish is provided with and distributes control head gland (25), secondary cleaning mother liquor water out (26), predrying media outlet (27), blowback air inlet I (28), blowback air inlet II (29), blowback air inlet III (30), filtered fluid outlet (31), secondary cleaning mother liquor water out (32) in week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201442085U CN201534023U (en) | 2009-10-17 | 2009-10-17 | Filtering, washing and drying integrated continuous pressure filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201442085U CN201534023U (en) | 2009-10-17 | 2009-10-17 | Filtering, washing and drying integrated continuous pressure filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534023U true CN201534023U (en) | 2010-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201442085U Expired - Lifetime CN201534023U (en) | 2009-10-17 | 2009-10-17 | Filtering, washing and drying integrated continuous pressure filter |
Country Status (1)
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102381964A (en) * | 2010-09-01 | 2012-03-21 | 天华化工机械及自动化研究设计院 | Integral process for washing and filtering terephthalic acid and water recovery |
| CN102476994A (en) * | 2010-11-30 | 2012-05-30 | 天华化工机械及自动化研究设计院 | Method for filtering, washing and separating crude terephthalic acid in oxidation unit of purified terephthalic acid device |
| CN102728128A (en) * | 2011-03-29 | 2012-10-17 | 天华化工机械及自动化研究设计院 | Separation method for dimethylbenzene suspension |
| CN102976368A (en) * | 2011-09-06 | 2013-03-20 | 天华化工机械及自动化研究设计院有限公司 | Method for lowering inorganic ultrafine powder slurry moisture content by adding rotary drum pressurizing type filtering machine |
| CN102992999A (en) * | 2011-09-17 | 2013-03-27 | 中国石油化工股份有限公司 | Matched filtering and washing method for crude m-phthalic acid in oxidation unit of refined m-phthalic acid device |
| CN102989233A (en) * | 2011-09-17 | 2013-03-27 | 天华化工机械及自动化研究设计院有限公司 | Continuous filtration method for polyacrylonitrile pulp |
| CN103305296A (en) * | 2012-03-12 | 2013-09-18 | 天华化工机械及自动化研究设计院有限公司 | Method for filtering and separating coal-to-liquid coal-based catalyst coal-water suspension |
| CN103387492A (en) * | 2012-05-11 | 2013-11-13 | 天华化工机械及自动化研究设计院有限公司 | Outer circulation filtering and washover method for crude terephthalic acid |
| CN103497777A (en) * | 2013-10-14 | 2014-01-08 | 天华化工机械及自动化研究设计院有限公司 | Heavy oil and bitumen extraction and separation method from coal-based oil residue |
| WO2015176562A1 (en) * | 2014-05-20 | 2015-11-26 | 天华化工机械及自动化研究设计院有限公司 | Method for processing acetic acid solvent in oxidising unit of pta industrial apparatus |
| CN105664562A (en) * | 2016-02-01 | 2016-06-15 | 苏州拓维工程装备有限公司 | Rotary-drum-type filter press |
| CN106139696A (en) * | 2015-05-15 | 2016-11-23 | 英威达技术有限公司 | Filter |
| CN106422479A (en) * | 2015-08-06 | 2017-02-22 | 英威达技术有限公司 | Rotary filter |
| JP2017520614A (en) * | 2014-04-24 | 2017-07-27 | 天華化工機械及自動化研究設計院有限公司Ｔｉａｎｈｕａ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｃｈｅｍｉｃａｌ Ｍａｃｈｉｎｅｒｙ Ａｎｄ Ａｕｔｏｍａｔｉｏｎ Ｃｏ．，Ｌｔｄ． | Solvent replacement apparatus and method for increasing CTA solvent replacement rate |
| CN112996582A (en) * | 2018-11-06 | 2021-06-18 | Bhs桑托芬有限公司 | Rotary filter press module |
| CN114705004A (en) * | 2022-05-01 | 2022-07-05 | 宁波科尼管洁净科技有限公司 | Pipe inner wall drying device and working method thereof |
| CN115445290A (en) * | 2022-09-13 | 2022-12-09 | 天华化工机械及自动化研究设计院有限公司 | Method for reducing moisture content of filter cake of pressure filter |
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-
2009
- 2009-10-17 CN CN2009201442085U patent/CN201534023U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102381964A (en) * | 2010-09-01 | 2012-03-21 | 天华化工机械及自动化研究设计院 | Integral process for washing and filtering terephthalic acid and water recovery |
| CN102476994B (en) * | 2010-11-30 | 2014-03-12 | 天华化工机械及自动化研究设计院有限公司 | Method for filtering, washing and separating crude terephthalic acid by using oxidizing unit of fine terephthalic acid device |
| CN102476994A (en) * | 2010-11-30 | 2012-05-30 | 天华化工机械及自动化研究设计院 | Method for filtering, washing and separating crude terephthalic acid in oxidation unit of purified terephthalic acid device |
| CN102728128A (en) * | 2011-03-29 | 2012-10-17 | 天华化工机械及自动化研究设计院 | Separation method for dimethylbenzene suspension |
| CN102976368A (en) * | 2011-09-06 | 2013-03-20 | 天华化工机械及自动化研究设计院有限公司 | Method for lowering inorganic ultrafine powder slurry moisture content by adding rotary drum pressurizing type filtering machine |
| CN102992999B (en) * | 2011-09-17 | 2014-08-27 | 中国石油化工股份有限公司 | Matched filtering and washing method for crude m-phthalic acid in oxidation unit of refined m-phthalic acid device |
| CN102989233A (en) * | 2011-09-17 | 2013-03-27 | 天华化工机械及自动化研究设计院有限公司 | Continuous filtration method for polyacrylonitrile pulp |
| CN102992999A (en) * | 2011-09-17 | 2013-03-27 | 中国石油化工股份有限公司 | Matched filtering and washing method for crude m-phthalic acid in oxidation unit of refined m-phthalic acid device |
| CN103305296A (en) * | 2012-03-12 | 2013-09-18 | 天华化工机械及自动化研究设计院有限公司 | Method for filtering and separating coal-to-liquid coal-based catalyst coal-water suspension |
| CN103387492A (en) * | 2012-05-11 | 2013-11-13 | 天华化工机械及自动化研究设计院有限公司 | Outer circulation filtering and washover method for crude terephthalic acid |
| CN103497777A (en) * | 2013-10-14 | 2014-01-08 | 天华化工机械及自动化研究设计院有限公司 | Heavy oil and bitumen extraction and separation method from coal-based oil residue |
| JP2017520614A (en) * | 2014-04-24 | 2017-07-27 | 天華化工機械及自動化研究設計院有限公司Ｔｉａｎｈｕａ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｃｈｅｍｉｃａｌ Ｍａｃｈｉｎｅｒｙ Ａｎｄ Ａｕｔｏｍａｔｉｏｎ Ｃｏ．，Ｌｔｄ． | Solvent replacement apparatus and method for increasing CTA solvent replacement rate |
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| CN106139696A (en) * | 2015-05-15 | 2016-11-23 | 英威达技术有限公司 | Filter |
| CN106422479A (en) * | 2015-08-06 | 2017-02-22 | 英威达技术有限公司 | Rotary filter |
| CN105664562A (en) * | 2016-02-01 | 2016-06-15 | 苏州拓维工程装备有限公司 | Rotary-drum-type filter press |
| CN112996582A (en) * | 2018-11-06 | 2021-06-18 | Bhs桑托芬有限公司 | Rotary filter press module |
| CN112996582B (en) * | 2018-11-06 | 2022-04-26 | Bhs桑托芬有限公司 | Rotary filter press module |
| CN114705004A (en) * | 2022-05-01 | 2022-07-05 | 宁波科尼管洁净科技有限公司 | Pipe inner wall drying device and working method thereof |
| CN114705004B (en) * | 2022-05-01 | 2024-04-26 | 宁波科尼管洁净科技有限公司 | Pipe inner wall drying device and working method thereof |
| CN115445290A (en) * | 2022-09-13 | 2022-12-09 | 天华化工机械及自动化研究设计院有限公司 | Method for reducing moisture content of filter cake of pressure filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANHUA INSTITUTE OF CHEMICAL MACHINERY + AUTOMATI Effective date: 20121204 Owner name: CHINA PETROCHEMICAL CORPORATION Free format text: FORMER OWNER: RUIDE DRYING TECHNOLOGY CO., LTD., LANZHOU Effective date: 20121204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 730060 LANZHOU, GANSU PROVINCE TO: 100728 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121204 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: Tianhua Chemical Machinery & Automation Research Inst. Address before: 730060 Gansu city of Lanzhou province Xigu District Heshui Road No. 3 Patentee before: Ruide Drying Technology Co., Ltd., Lanzhou |
|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Xu Inventor after: Li Junliang Inventor after: Zhang Wanyao Inventor after: Yi Zhi Inventor after: Wang Rui Inventor after: Zhang Baoquan Inventor after: Li Qiang Inventor before: Zhao Xu Inventor before: Zhang Wanyao Inventor before: Wang Rui |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO XU ZHANG WANYAO WANG RUI TO: ZHAO XU LI JUNLIANG ZHANG WANYAO YI ZHI WANG RUI ZHANG BAOQUAN LI QIANG |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: Tianhua Institute of Chemical Machinery & Automation Co., Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Tianhua Chemical Machinery & Automation Research Inst. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100728 |