CN103316519A - Filtering and washing device - Google Patents
Filtering and washing device Download PDFInfo
- Publication number
- CN103316519A CN103316519A CN2013102380547A CN201310238054A CN103316519A CN 103316519 A CN103316519 A CN 103316519A CN 2013102380547 A CN2013102380547 A CN 2013102380547A CN 201310238054 A CN201310238054 A CN 201310238054A CN 103316519 A CN103316519 A CN 103316519A
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- Prior art keywords
- reactor
- pipe
- filtering
- washing device
- filtration
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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.)
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- 238000001914 filtration Methods 0.000 title claims abstract description 53
- 238000005406 washing Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 28
- 238000010276 construction Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 241001137251 Corvidae Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 235000015108 pies Nutrition 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 10
- 239000012065 filter cake Substances 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- NHNUFAASKXPOQA-UHFFFAOYSA-N (3-acetamido-2-hydroxyphenyl)arsonic acid Chemical compound C(C)(=O)NC=1C(=C(C=CC1)[As](O)(=O)O)O NHNUFAASKXPOQA-UHFFFAOYSA-N 0.000 description 2
- KWMDHCLJYMVBNS-UHFFFAOYSA-N 2-bromo-4,6-dinitroaniline Chemical compound NC1=C(Br)C=C([N+]([O-])=O)C=C1[N+]([O-])=O KWMDHCLJYMVBNS-UHFFFAOYSA-N 0.000 description 2
- LHRIICYSGQGXSX-UHFFFAOYSA-N 2-chloro-4,6-dinitroaniline Chemical compound NC1=C(Cl)C=C([N+]([O-])=O)C=C1[N+]([O-])=O LHRIICYSGQGXSX-UHFFFAOYSA-N 0.000 description 2
- WYRNRZQRKCXPLA-UHFFFAOYSA-N 3-(n-ethylanilino)propanenitrile Chemical compound N#CCCN(CC)C1=CC=CC=C1 WYRNRZQRKCXPLA-UHFFFAOYSA-N 0.000 description 2
- FENJKTQEFUPECW-UHFFFAOYSA-N 3-anilinopropanenitrile Chemical compound N#CCCNC1=CC=CC=C1 FENJKTQEFUPECW-UHFFFAOYSA-N 0.000 description 2
- TYTBUABAZPLEIG-UHFFFAOYSA-N C(C)N(C1=CC=CC=C1)CC.C(C)(=O)NC=1C(=C(C=CC1)[As](O)(O)=O)O Chemical compound C(C)N(C1=CC=CC=C1)CC.C(C)(=O)NC=1C(=C(C=CC1)[As](O)(O)=O)O TYTBUABAZPLEIG-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- CJIPLMHXHKPZGM-UHFFFAOYSA-N n,n-bis(prop-2-enyl)aniline Chemical compound C=CCN(CC=C)C1=CC=CC=C1 CJIPLMHXHKPZGM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filtering and washing device which is composed of a hollow reactor, first filtering pipes, a stirring device, a material inlet, water inlets, a tail gas exhaust pipe, a filtering pipe opening, a material outlet, a liquid exhaust pipe and a liquid collecting pipe, wherein the first filtering pipes and the stirring device are arranged in the reactor; the material inlet, the water inlets, the tail gas exhaust pipe, the filtering pipe opening, the material outlet, the liquid exhaust pipe and the liquid collecting pipe are arranged outside the reactor; the filtering pipe opening is formed in the outer wall of the reactor; one ends of the first filtering pipes respectively extend into the reactor; the parts of the first filtering pipes, which extend into the reactor, are hollow pipes with through holes formed in the pipe walls; filtering cloth or filtering bags are tightly wrapped on the outer peripheries of the hollow pipes with the through holes formed in the pipe walls; the other ends of the first filtering pies are respectively fixed on the filtering pipe opening through flanges and are connected with the external liquid exhaust pipe. The filtering and washing device provided by the invention has a favorable filtering and washing effect, and is few in water washing quantity, and filtering cakes are loose, and pipeline delivery is convenient; enclosed operation is realized, and the production environment is improved; the impurity content is low; the product quality is good.
Description
(1) technical field
The present invention relates to a kind of filtration washing device, particularly a kind of filtration washing device of dye and dye intermediate.
(2) background technology
In the production of dyestuff intermediate; often can run into and filter and washing process, and the filtration in producing and washing process adopt traditional suction filtration tank to carry out usually, cause the filter cake bed thickness; the wash water consumption is large; washing is difficult for evenly, and product purity is not high, when synthetic for follow-up dyestuff; cause diazonium to decompose; dyestuffs purity is low, and yield is low, affects the dyestuff quality.
In addition, filter cake shifts with artificial, and labour intensity is high, and this suction filtration tank can't be realized closed-loop operation, and the working site smell is larger, and workman's execute-in-place environment is relatively poor, residual such as N-cyanoethyl-Phenhenzamine synthesis material benzyl chloride has the intense stimulus smell, not environmental protection.
(3) summary of the invention
In order to overcome above shortcomings in existing dyestuff intermediate filtration and the washing process, the invention provides a kind of filtration washing respond well, the wash water consumption is few, and the loose pipeline that is easy to of filter cake is carried, compare with traditional suction filtration tank, production environment improves, and impurity content is low, be used for dyestuff synthetic, the filtration washing device of superior product quality.
The technical solution used in the present invention is:
The filtration washing device, reactor by hollow, be arranged on the first screen pipe of inside reactor, agitating device, and the charging hole that is arranged on the reactor outside, the inlet opening, tail gas discharging pipe, filter the mouth of pipe, discharge opening, discharging tube and collector tube constitute, it is characterized in that: offer the filtration mouth of pipe on the outer wall of described reactor, described the first screen pipe one end stretches into described inside reactor, the part that described the first screen pipe stretches into inside reactor is the hollow tube that is furnished with through hole on the tube wall, and the periphery that is furnished with the hollow tube of through hole on the described tube wall closely is enclosed with filter cloth or filter bag; The other end of described the first screen pipe is fixed on the described filtration mouth of pipe and with the described discharging tube of outside by flange respectively and is connected, and described discharging tube is communicated with the collector tube of being convenient to the conveying of mother liquid coming and washings.
Further, one end of described the first screen pipe is fixed on by flange on the filtration mouth of pipe of sidewall of described reactor, and be horizontally in the bottom of inside reactor, but and single or multiple lift arrange, the part that described the first screen pipe stretches into inside reactor supports by bottom support bracket; End and the inwall of the opposite side of inside reactor that described the first screen pipe stretches into the part of inside reactor can touch mutually also can not touch mutually and be connected.
Further, the bottom of described bearing is bolted the bottom at inside reactor; Described bearing can be crescent or hemispherical.
Further, the bottom of described reactor also is provided with the second screen pipe, and an end of described the second screen pipe is fixed on by flange on the filtration mouth of pipe of bottom of described reactor, and the other end stretches into described inside reactor and is vertical distribution.
Further, the top of described reactor is respectively arranged with described charging hole and tail gas discharging pipe; Described sidewall of reactor and top are equipped with the inlet opening, and described inlet opening is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening.
Further, the top of described reactor is respectively arranged with described charging hole and tail gas discharging pipe; Described reactor head is provided with the inlet opening, and described inlet opening is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening.
Further, described reactor is connected to form by reactor body and capping, offer the installing hole that described agitating device is installed in the described capping, described agitating device is installed in the described installing hole by stirring support, and described agitating device stretches in the described reactor body.
Further, offer the vent gas treatment hole in the described capping, described vent gas treatment hole is connected with tail gas discharging pipe.
Further, the top of described reactor also offers is convenient to the manhole that the people enters inside reactor maintenance and erection unit, is equipped with the watertight construction that prevents that tail gas from leaking on the installing hole of described manhole and agitating device.
Further, described collector tube is connected with the vacuum plant that can accelerate the rate of filtration.
When the present invention uses, at first open the valve of tail gas discharging pipe and charging hole, all the other valve closings enter treating material in the reactor body by charging hole through delivery pump, open simultaneously the screen pipe valve and carry out discharge opeing.The reactor body charging is complete, and after observing substantially anhydrous discharge by the visor on the discharging tube, closes charging hole and screen pipe valve.Open the inlet opening valve, add water, add water and close the inlet opening valve after complete; Open the screen pipe valve and carry out discharge opeing, observe substantially anhydrous discharge by the discharging tube visor after, close the screen pipe valve, keeping simultaneously charging hole is closed condition.Repeat above-mentioned water, drain step 1 time that adds.Close the screen pipe valve, open the inlet opening valve, after pipeline is metered into certain water gaging with flowmeter, close the inlet opening valve, water: quality of material ratio=1.2～2:1, under the normal temperature and pressure, start after agitating device making beating 20～60min, open the discharge opening valve and be transferred to the use of coupling operation with pump.Shift completely, close stirring, close discharge opening valve and offgas duct valve, shut down stand-by.
Filtration washing device of the present invention is specially adapted to dyestuff intermediate such as N-cyanoethyl-Phenhenzamine, 3-acetylaminohydroxyphenylarsonic acid N, N-diallyl aniline, N-cyanoethyl aniline, paranitroanilinum, ortho-chlor-para nitraniline, 2,6-dichloro paranitroanilinum, 6-chloro-2,4-dinitroaniline, 6-bromo-2,4-dinitroaniline, 3-acetylaminohydroxyphenylarsonic acid N, N-diethylaniline, N-ethyl-N-cyanoethyl aniline etc.
Beneficial effect of the present invention is embodied in:
1, filtration washing is respond well, and the wash water consumption is few, and the loose pipeline that is easy to of filter cake is carried;
2, realize closed-loop operation, production environment improves, and impurity content is low, is used for dyestuff synthetic, superior product quality;
3, will filter and making beating unites two into one, adopt simultaneously the pump convey materials, need not loaded down with trivial details artificial sled material packing, reduce labour intensity and cost of labor;
4, cost of investment and operating cost are low; Device quantity is few, and equipment operating is convenient, safeguards simple;
5, be easy to realize maximizing, raise the efficiency.
(4) description of drawings
Fig. 1 is overall structure schematic diagram of the present invention (front view).
Fig. 2 is overall structure top view of the present invention.
Be labeled as among the figure: the 1-reactor; The 2-charging hole; The 3-discharge opening; The 4-agitating device; 5-the first screen pipe; 6,9-inlet opening; The 7-bearing; 8-the second screen pipe, 10-tail gas discharging pipe; The 11-watertight construction.
(5) specific embodiment
See figures.1.and.2, the filtration washing device, reactor 1 by hollow, be arranged on the first screen pipe 5 of reactor 1 inside, agitating device 4, and the charging hole 2 that is arranged on reactor 1 outside, the inlet opening, tail gas discharging pipe 10, filter the mouth of pipe, discharge opening 3, discharging tube and collector tube constitute, offer the filtration mouth of pipe on the outer wall of described reactor 1, described the first screen pipe 5 one ends stretch into described reactor 1 inside, the part that described the first screen pipe 5 stretches into reactor 1 inside is the hollow tube that is furnished with through hole on the tube wall, and the periphery that is furnished with the hollow tube of through hole on the described tube wall closely is enclosed with filter cloth or filter bag; The other end of described the first screen pipe 5 is fixed on the described filtration mouth of pipe and with the described discharging tube of outside by flange respectively and is connected, and described discharging tube is communicated with the collector tube of being convenient to the conveying of mother liquid coming and washings.
Further, described first end that filters 5 pipes is fixed on by flange on the filtration mouth of pipe of sidewall of described reactor, and be horizontally bottom at inside reactor, and but single or multiple lift arranges, and the part that described the first screen pipe stretches into inside reactor supports by bottom support bracket 7; The end that described the first screen pipe 5 stretches into the part of inside reactor can be touched mutually with the inwall of the opposite side of inside reactor or not touch mutually and is connected.
Further, the bottom of described bearing 7 is bolted the bottom at inside reactor; Described bearing can be crescent or hemispherical.
Further, the bottom of described reactor also is provided with the second screen pipe 8, and an end of described the second screen pipe 8 is fixed on by flange on the filtration mouth of pipe of bottom of described reactor, and the other end stretches into described inside reactor and is vertical distribution.
Further, the top of described reactor 1 is respectively arranged with described charging hole 2 and tail gas discharging pipe 10; Described sidewall of reactor and top are equipped with inlet opening 6,9, and described inlet opening is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening 3.
Further, the top of described reactor 1 is respectively arranged with described charging hole 2 and tail gas discharging pipe 10; Described reactor head is provided with inlet opening 9, and described inlet opening 9 is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening 3.
Further, described reactor is connected to form by reactor body and capping, offer the installing hole that described agitating device 4 is installed in the described capping, described agitating device 4 is installed in the described installing hole by stirring support, and described agitating device 4 stretches in the described reactor body.
Further, offer the vent gas treatment hole in the described capping, described vent gas treatment hole is connected with tail gas discharging pipe 10.
Further, the top of described reactor also offers is convenient to the manhole that the people enters inside reactor maintenance and erection unit, is equipped with the watertight construction 11 that prevents that tail gas from leaking on the installing hole of described manhole and agitating device.
Further, described collector tube is connected with the vacuum plant that can accelerate the rate of filtration.
When the present invention uses, at first open the valve of tail gas discharging pipe 10 and charging hole 2, all the other valve closings enter treating material in the reactor body by charging hole 2 through delivery pump, open simultaneously the screen pipe valve and carry out discharge opeing.The reactor body charging is complete, and after observing substantially anhydrous discharge by the visor on the discharging tube, closes charging hole and screen pipe valve.Open the inlet opening valve, add water, add water and close the inlet opening valve after complete; Open the screen pipe valve and carry out discharge opeing, observe substantially anhydrous discharge by the discharging tube visor after, close the screen pipe valve, keeping simultaneously charging hole is closed condition.Repeat above-mentioned water, drain step 1 time that adds.Close the screen pipe valve, open the inlet opening valve, after pipeline is metered into certain water gaging with flowmeter, close the inlet opening valve, water: quality of material ratio=1.2～2:1, under the normal temperature and pressure, start after agitating device making beating 20～60min, open the discharge opening valve and be transferred to the use of coupling operation with pump.Shift completely, close stirring, close discharge opening valve and offgas duct valve, shut down stand-by.
Filtration washing device of the present invention is specially adapted to dyestuff intermediate such as N-cyanoethyl-Phenhenzamine, 3-acetylaminohydroxyphenylarsonic acid N, N-diallyl aniline, N-cyanoethyl aniline, paranitroanilinum, ortho-chlor-para nitraniline, 2,6-dichloro paranitroanilinum, 6-chloro-2,4-dinitroaniline, 6-bromo-2,4-dinitroaniline, 3-acetylaminohydroxyphenylarsonic acid N, N-diethylaniline, N-ethyl-N-cyanoethyl aniline etc.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reaches in those skilled in the art conceives the equivalent technologies means that can expect according to the present invention.
Claims (10)
1. filtration washing device, reactor by hollow, be arranged on the first screen pipe of inside reactor, agitating device, and the charging hole that is arranged on the reactor outside, the inlet opening, tail gas discharging pipe, filter the mouth of pipe, discharge opening, discharging tube and collector tube constitute, it is characterized in that: offer the filtration mouth of pipe on the outer wall of described reactor, described the first screen pipe one end stretches into described inside reactor, the part that described the first screen pipe stretches into inside reactor is the hollow tube that is furnished with through hole on the tube wall, and the periphery that is furnished with the hollow tube of through hole on the described tube wall closely is enclosed with filter cloth or filter bag; The other end of described the first screen pipe is fixed on the described filtration mouth of pipe and with the described discharging tube of outside by flange respectively and is connected, and described discharging tube is communicated with the collector tube of being convenient to the conveying of mother liquid coming and washings.
2. filtration washing device as claimed in claim 1, it is characterized in that: an end of described the first screen pipe is fixed on by flange on the filtration mouth of pipe of sidewall of described reactor, and be horizontally bottom at inside reactor, and but single or multiple lift arranges, and the part that described the first screen pipe stretches into inside reactor supports by bottom support bracket; The end that described the first screen pipe stretches into the part of inside reactor can be touched mutually with the inwall of the opposite side of inside reactor or not touch mutually and is connected.
3. filtration washing device as claimed in claim 2, it is characterized in that: the bottom of described bearing is bolted the bottom at inside reactor; Described bearing can be crescent or hemispherical.
4. filtration washing device as claimed in claim 3, it is characterized in that: the bottom of described reactor also is provided with the second screen pipe, one end of described the second screen pipe is fixed on by flange on the filtration mouth of pipe of bottom of described reactor, and the other end stretches into described inside reactor and is vertical distribution.
5. filtration washing device as claimed in claim 4, it is characterized in that: the top of described reactor is respectively arranged with described charging hole and tail gas discharging pipe; Described sidewall of reactor and top are equipped with the inlet opening, and described inlet opening is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening.
6. filtration washing device as claimed in claim 4, it is characterized in that: the top of described reactor is respectively arranged with described charging hole and tail gas discharging pipe; Described reactor head is provided with the inlet opening, and described inlet opening is connected with water inlet pipe; The central authorities of described reactor bottom are provided with discharge opening.
7. such as claim 5 or 6 described filtration washing devices, it is characterized in that: described reactor is connected to form by reactor body and capping, offer the installing hole that described agitating device is installed in the described capping, described agitating device is installed in the described installing hole by stirring support, and described agitating device stretches in the described reactor body.
8. filtration washing device as claimed in claim 7, it is characterized in that: offer the vent gas treatment hole in the described capping, described vent gas treatment hole is connected with tail gas discharging pipe.
9. filtration washing device as claimed in claim 8, it is characterized in that: the top of described reactor also offers is convenient to the manhole that the people enters inside reactor maintenance and erection unit, is equipped with the watertight construction that prevents that tail gas from leaking on the installing hole of described manhole and agitating device.
10. filtration washing device as claimed in claim 9, it is characterized in that: described collector tube is connected with the vacuum plant that can accelerate the rate of filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102380547A CN103316519A (en) | 2013-06-13 | 2013-06-13 | Filtering and washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102380547A CN103316519A (en) | 2013-06-13 | 2013-06-13 | Filtering and washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103316519A true CN103316519A (en) | 2013-09-25 |
Family
ID=49185735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102380547A Pending CN103316519A (en) | 2013-06-13 | 2013-06-13 | Filtering and washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103316519A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890831A (en) * | 2017-11-15 | 2018-04-10 | 江苏昌吉利新能源科技有限公司 | Sedimentation filtration integrative machine is used in a kind of organolithium production |
| CN109248498A (en) * | 2017-07-15 | 2019-01-22 | 中蓝连海设计研究院 | A kind of dehydration agitator |
| CN111991883A (en) * | 2020-08-18 | 2020-11-27 | 浙江诚信医化设备有限公司 | Filter capable of achieving multi-layer filtering |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2063799C1 (en) * | 1993-10-08 | 1996-07-20 | Пензенский комбинат медицинских препаратов "Биосинтез" | Reactor-filter |
| CN101073726A (en) * | 2007-04-03 | 2007-11-21 | 黄冈德利生物科技开发有限公司 | Agitation filtering pot for rapessed cake dreg de-toxin reaction |
| CN101560157A (en) * | 2009-06-02 | 2009-10-21 | 王彦明 | Manufacturing technique of amantadine hydrochloride and special equipment thereof |
| CN202161869U (en) * | 2011-07-08 | 2012-03-14 | 江苏傲伦达科技实业股份有限公司 | Multifunctional sealed filter |
| CN202860551U (en) * | 2012-10-24 | 2013-04-10 | 中国石油化工股份有限公司 | Ion exchange device |
| CN203425589U (en) * | 2013-06-13 | 2014-02-12 | 浙江龙盛集团股份有限公司 | Filtering and cleaning device |
-
2013
- 2013-06-13 CN CN2013102380547A patent/CN103316519A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2063799C1 (en) * | 1993-10-08 | 1996-07-20 | Пензенский комбинат медицинских препаратов "Биосинтез" | Reactor-filter |
| CN101073726A (en) * | 2007-04-03 | 2007-11-21 | 黄冈德利生物科技开发有限公司 | Agitation filtering pot for rapessed cake dreg de-toxin reaction |
| CN101560157A (en) * | 2009-06-02 | 2009-10-21 | 王彦明 | Manufacturing technique of amantadine hydrochloride and special equipment thereof |
| CN202161869U (en) * | 2011-07-08 | 2012-03-14 | 江苏傲伦达科技实业股份有限公司 | Multifunctional sealed filter |
| CN202860551U (en) * | 2012-10-24 | 2013-04-10 | 中国石油化工股份有限公司 | Ion exchange device |
| CN203425589U (en) * | 2013-06-13 | 2014-02-12 | 浙江龙盛集团股份有限公司 | Filtering and cleaning device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248498A (en) * | 2017-07-15 | 2019-01-22 | 中蓝连海设计研究院 | A kind of dehydration agitator |
| CN107890831A (en) * | 2017-11-15 | 2018-04-10 | 江苏昌吉利新能源科技有限公司 | Sedimentation filtration integrative machine is used in a kind of organolithium production |
| CN111991883A (en) * | 2020-08-18 | 2020-11-27 | 浙江诚信医化设备有限公司 | Filter capable of achieving multi-layer filtering |
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Application publication date: 20130925 |