CN108970171A - A kind of extraction equipment and technique - Google Patents
A kind of extraction equipment and technique Download PDFInfo
- Publication number
- CN108970171A CN108970171A CN201810887865.2A CN201810887865A CN108970171A CN 108970171 A CN108970171 A CN 108970171A CN 201810887865 A CN201810887865 A CN 201810887865A CN 108970171 A CN108970171 A CN 108970171A
- Authority
- CN
- China
- Prior art keywords
- spraying
- layer
- film
- extracting
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/028—Flow sheets
- B01D11/0284—Multistage extraction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0292—Treatment of the solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The present invention provides a kind of extraction equipments, including spraying and extracting layer and the distillation layer being connected with the liquid outlet of the spraying and extracting layer；The spraying and extracting layer includes multiple upper live-rollers that top is arranged in, multiple lower driving rollers arranged at the bottom, the extractant spray port being arranged between upper live-roller and lower driving roller, liquid outlet arranged at the bottom and membrane inlet and film outlet that top is arranged in；The distillation layer includes heating device arranged at the bottom, and the exhaust outlet and leakage fluid dram arranged at the bottom at top is arranged in.The present invention carries out extraction processing to film to be processed using fountain extraction and instant evaporation, using spraying and extracting mode, can realize stable effect of extracting to avoid mutual pollution；High temperature distillation is carried out, can reduce extraction tank liquid storage amount, improves safety, while methylene chloride can be recycled, realization recycles, and reduces methylene chloride consumption.In addition, the application is designed using double-layer structure, it is convenient for process for producing/unit exception.
Description
Technical field
The invention belongs to abstraction technique field more particularly to a kind of extraction equipment and techniques.
Background technique
Lithium ion battery separator wet method preparation process utilizes Thermal inactive principle, and polyethylene and small molecule agent are mixed and added
Heat forms the polyethylene sheet with micropore after extrusion after over-quenching, micron order film is made after stretching, then pass through extraction work
Sequence replaces the small molecule agent in diaphragm, then so that extractant is reached boiling point and is gasified by high temperature, finally prepares lithium-ion electric
Pond diaphragm.
In extraction process, common extractant is methylene chloride, methylene chloride density 1.33g/cm3, 39.8 DEG C of boiling point,
Highly volatile.Extraction process used at present is immersion type extraction, i.e., extracts diaphragm immersion in methylene chloride.It is this
There are distinct disadvantages for extraction process: 1, methylene chloride consumption is big, consumes 1.0~1.5 tons daily；2, liquid storage amount is big, safety guarantee
It is weak；3, exception can not be handled in time, and if extract liquor is contaminated, bearing damage etc., maintenance delays the plenty of time.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of extraction equipment and technique, extraction equipment provided by the invention
, it can be achieved that methylene chloride recycles when for extracting the small molecule agent in lithium ion battery separator, it can reduce consumption, subtracting
Few liquid storage amount.
The present invention provides a kind of extraction equipments, are connected including spraying and extracting layer and with the liquid outlet of the spraying and extracting layer
Logical distillation layer；
The spraying and extracting layer include multiple upper live-rollers that top is set, multiple lower driving rollers arranged at the bottom,
Extractant spray port between upper live-roller and lower driving roller, liquid outlet arranged at the bottom are set and the thin of top is set
Film entrance and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and row arranged at the bottom
Liquid mouth.
In one embodiment, the spraying and extracting layer further includes the scraping fluid being arranged between upper live-roller and lower driving roller
Roller, when film is run from the supreme live-roller of lower driving roller, liquid sweeping roller is located at film surface.
In one embodiment, the distillation layer further includes the overflow port that side is arranged in.
In one embodiment, further includes: the condensing unit being connected with the exhaust outlet of the distillation layer.
In one embodiment, the liquid outlet of the condensing unit is sprayed by the extractant of mixing arrangement and spraying and extracting layer
Leaching mouth is connected.
In one embodiment, including sequentially connected multiple units, each unit include spraying and extracting layer and with it is described
The distillation layer that the liquid outlet of spraying and extracting layer is connected；
The spraying and extracting layer include multiple upper live-rollers that top is set, multiple lower driving rollers arranged at the bottom,
Extractant spray port between upper live-roller and lower driving roller, liquid outlet arranged at the bottom are set and the thin of top is set
Film entrance and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and row arranged at the bottom
Liquid mouth；
The membrane inlet of the latter unit is connected with the outlet of the film of previous element.
In one embodiment, the distillation layer is located at below spraying and extracting layer.
The present invention also provides a kind of extracting process, comprising the following steps:
Extraction equipment described in above-mentioned technical proposal is provided；
Film to be processed is successively exported by upper live-roller, lower driving roller to film by membrane inlet, while with white
Oil and methylene chloride mixing are sprayed out by extractant spray port as extractant and are extracted to film to be processed；
In extraction process, the heating device of distillation layer is opened, the extraction of distillation layer will be flow to by spraying and extracting layer liquid outlet
Agent heating, makes methylene chloride gasify, and be discharged by exhaust outlet.
In one embodiment, the heating temperature of the heating device is 60~80 DEG C.
Extraction equipment provided by the invention includes spraying and extracting layer and is connected with the liquid outlet of the spraying and extracting layer
Distill layer；The spraying and extracting layer includes multiple upper live-rollers that top is arranged in, multiple lower driving rollers arranged at the bottom, sets
Set extractant spray port, liquid outlet arranged at the bottom and the film that top is set between upper live-roller and lower driving roller
Entrance and film outlet；The distillation layer includes heating device arranged at the bottom, and the exhaust outlet and setting that top is arranged in exist
The leakage fluid dram of bottom.The present invention carries out extraction processing to film to be processed using fountain extraction and instant evaporation, using spray
Extraction mode is drenched, can realize stable effect of extracting to avoid mutual pollution；High temperature distillation is carried out, can reduce extraction tank storage
Liquid measure improves safety, while can recycle methylene chloride, and realization recycles, and reduces methylene chloride consumption.In addition, this Shen
It please be designed using double-layer structure, be convenient for process for producing/unit exception.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of extraction equipment provided in an embodiment of the present invention.
Specific embodiment
The present invention provides a kind of extraction equipments, are connected including spraying and extracting layer and with the liquid outlet of the spraying and extracting layer
Logical distillation layer；
The spraying and extracting layer include multiple upper live-rollers that top is set, multiple lower driving rollers arranged at the bottom,
Extractant spray port between upper live-roller and lower driving roller, liquid outlet arranged at the bottom are set and the thin of top is set
Film entrance and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and row arranged at the bottom
Liquid mouth.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of extraction equipment provided in an embodiment of the present invention；Wherein, 1 is spraying and extracting
Layer, 11 be membrane inlet, and 12 export for film, and 13 be upper live-roller, and 14 be lower driving roller, and 15 be extractant spray port, and 16 are
Liquid outlet, 17 be liquid sweeping roller；2 be distillation layer, and 21 be heating device, and 22 be exhaust outlet, and 23 be leakage fluid dram, and 24 be overflow port.
Extraction equipment provided by the invention includes spraying and extracting layer 1, spraying and extracting layer 1 include be arranged in top it is multiple on
Live-roller 13, multiple lower driving rollers 14 arranged at the bottom, the extractant being arranged between upper live-roller 13 and lower driving roller 14
Spray port 15, liquid outlet arranged at the bottom 16 and membrane inlet 11 and film outlet 12 that top is set.Film to be processed
Entered by membrane inlet 11, successively by first upper live-roller, first lower driving roller, second upper live-roller, second
Live-roller and when lower driving roller in lower driving roller ... process, the extractant between upper live-roller and lower driving roller sprays out
Extraction processing is carried out in mouth spraying and extracting agent to film to be processed, then drops to the liquid outlet 16 of bottom.
In one embodiment, the spraying and extracting layer further includes the scraping fluid being arranged between upper live-roller and lower driving roller
Roller 17, when film is run from the supreme live-roller of lower driving roller, liquid sweeping roller is located at film surface and wipes the extractant on surface off, drippage
To the liquid outlet 16 of bottom.
Extraction equipment provided by the invention includes distillation layer 2, and distillation, 2 include heating device 21 arranged at the bottom, setting
Exhaust outlet 22 and leakage fluid dram arranged at the bottom 23 at top.Extractant is dropped in distillation layer by liquid outlet 16, heating dress
It sets and extractant is heated, methylene chloride therein is made to gasify and be discharged by exhaust outlet, white oil is then discharged by leakage fluid dram 23.
In one embodiment, the distillation layer further includes overflow port 24, and white oil is discharged by overflow port 24.
In one embodiment, the distillation layer further includes fluid infusion.
In one embodiment, further includes: the condensing unit being connected with the exhaust outlet of the distillation layer (does not show in figure
Out), the methylene chloride condensing recovery for that will gasify.
In one embodiment, the liquid outlet of the condensing unit is sprayed by the extractant of mixing arrangement and spraying and extracting layer
Leaching mouth is connected, and is re-used for extracting after the methylene chloride of recycling is mixed with white oil.
In one embodiment, the extraction equipment includes sequentially connected multiple units, and each unit includes spray extraction
The distillation layer for taking layer and being connected with the liquid outlet of the spraying and extracting layer；
The spraying and extracting layer include multiple upper live-rollers that top is set, multiple lower driving rollers arranged at the bottom,
Extractant spray port between upper live-roller and lower driving roller, liquid outlet arranged at the bottom are set and the thin of top is set
Film entrance and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and row arranged at the bottom
Liquid mouth；
The membrane inlet of the latter unit is connected with the outlet of the film of previous element.
When extraction equipment includes multiple units, control of the vapo(u)rizing temperature realization of each unit to technique can be controlled respectively
System.
In one embodiment, the distillation layer is located at below spraying and extracting layer, and double-layer structure is convenient for process for producing/equipment
It is abnormal.
Extraction equipment provided by the invention is used to extract the small molecule agent in wet process preparing lithium ion battery membrane, and principle is such as
Under:
Film to be processed is entered by membrane inlet 11, successively by first upper live-roller, first lower driving roller, the
Live-roller and when lower driving roller on two upper live-rollers, second lower driving roller ... process, positioned at upper live-roller and underdrive
Extraction processing is carried out in extractant discharge outlet spraying and extracting agent to film to be processed between roller, then drops to going out for bottom
Liquid mouth 16, wherein film to be processed is prepared in accordance with the following methods:
By polyethylene and small molecule agent Hybrid Heating, the polyethylene sheet with micropore is formed after extrusion after over-quenching, is drawn
Micron order film made of after stretching；
Extractant drops to distillation layer 2 by liquid outlet 16, and opening heating device separates methylene chloride evaporation with white oil, from
And realize the recycling and reusing of methylene chloride and white oil.
The present invention also provides a kind of extracting process, comprising the following steps:
Extraction equipment described in above-mentioned technical proposal is provided；
Film to be processed is successively exported by upper live-roller, lower driving roller to film by membrane inlet, while with white
Oil and methylene chloride mixing are sprayed out by extractant spray port as extractant and are extracted to film to be processed；
In extraction process, the heating device of distillation layer is opened, the extraction of distillation layer will be flow to by spraying and extracting layer liquid outlet
Agent heating, makes methylene chloride gasify, and be discharged by exhaust outlet.
In one embodiment, the heating temperature of the heating device is 60~80 DEG C.
When the extraction equipment includes multiple units, the vapo(u)rizing temperature of each unit can be different.
In distillation, residual dichloromethane level in white oil is set to be less than or equal to 3% by controlling vapo(u)rizing temperature；Entire technique is white
Oil residual is less than or equal to 0.5%.
Extraction equipment provided by the invention includes spraying and extracting layer and is connected with the liquid outlet of the spraying and extracting layer
Distill layer；The spraying and extracting layer includes multiple upper live-rollers that top is arranged in, multiple lower driving rollers arranged at the bottom, sets
Set extractant spray port, liquid outlet arranged at the bottom and the film that top is set between upper live-roller and lower driving roller
Entrance and film outlet；The distillation layer includes heating device arranged at the bottom, and the exhaust outlet and setting that top is arranged in exist
The leakage fluid dram of bottom.The present invention carries out extraction processing to film to be processed using fountain extraction and instant evaporation, using spray
Extraction mode is drenched, can realize stable effect of extracting to avoid mutual pollution；High temperature distillation is carried out, can reduce extraction tank storage
Liquid measure improves safety, while can recycle methylene chloride, and realization recycles, and reduces methylene chloride consumption.In addition, this Shen
It please be designed using double-layer structure, be convenient for process for producing/unit exception.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of extraction equipment, which is characterized in that be connected including spraying and extracting layer and with the liquid outlet of the spraying and extracting layer
Distillation layer；
The spraying and extracting layer includes multiple upper live-rollers that top is arranged in, multiple lower driving rollers arranged at the bottom, setting
Extractant spray port, liquid outlet arranged at the bottom between upper live-roller and lower driving roller and the film that top is arranged in enter
Mouth and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and drain arranged at the bottom
Mouthful.
2. extraction equipment according to claim 1, which is characterized in that the spraying and extracting layer further includes being arranged in upper transmission
Liquid sweeping roller between roller and lower driving roller, when film is run from the supreme live-roller of lower driving roller, liquid sweeping roller is located at film surface.
3. extraction equipment according to claim 1, which is characterized in that the distillation layer further includes the overflow that side is arranged in
Mouthful.
4. extraction equipment according to claim 1, which is characterized in that further include: it is connected with the exhaust outlet of the distillation layer
Logical condensing unit.
5. extraction equipment according to claim 4, which is characterized in that the liquid outlet of the condensing unit passes through mixing arrangement
It is connected with the extractant spray port of spraying and extracting layer.
6. extraction equipment according to claim 4, which is characterized in that including sequentially connected multiple units, each unit
Including spraying and extracting layer and the distillation layer being connected with the liquid outlet of the spraying and extracting layer；
The spraying and extracting layer includes multiple upper live-rollers that top is arranged in, multiple lower driving rollers arranged at the bottom, setting
Extractant spray port, liquid outlet arranged at the bottom between upper live-roller and lower driving roller and the film that top is arranged in enter
Mouth and film outlet；
The distillation layer includes heating device arranged at the bottom, be arranged in top exhaust outlet and drain arranged at the bottom
Mouthful；
The membrane inlet of the latter unit is connected with the outlet of the film of previous element.
7. extraction equipment according to claim 1, which is characterized in that the distillation layer is located at below spraying and extracting layer.
8. a kind of extracting process, which comprises the following steps:
Extraction equipment described in claim 1 is provided；
Film to be processed is successively exported by upper live-roller, lower driving roller to film by membrane inlet, at the same with white oil and
Methylene chloride mixing, which is sprayed out as extractant by extractant spray port, extracts film to be processed；
In extraction process, the heating device of distillation layer is opened, the extractant for flowing to distillation layer by spraying and extracting layer liquid outlet is added
Heat makes methylene chloride gasify, and is discharged by exhaust outlet.
9. extracting process according to claim 8, which is characterized in that the heating temperature of the heating device is 60~80
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887865.2A CN108970171B (en) | 2018-08-07 | 2018-08-07 | Extraction equipment and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887865.2A CN108970171B (en) | 2018-08-07 | 2018-08-07 | Extraction equipment and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108970171A true CN108970171A (en) | 2018-12-11 |
| CN108970171B CN108970171B (en) | 2021-06-15 |
Family
ID=64555308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810887865.2A Active CN108970171B (en) | 2018-08-07 | 2018-08-07 | Extraction equipment and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108970171B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668425A (en) * | 2020-04-26 | 2020-09-15 | 河北金力新能源科技股份有限公司 | Meta-aramid diaphragm and preparation method thereof |
| CN115400448A (en) * | 2022-08-30 | 2022-11-29 | 华东理工大学 | Application of No. 5 industrial white oil as MTBE (methyl tert-butyl ether) extraction anti-coking agent and MTBE desulfurization method |
| CN115475408A (en) * | 2022-08-31 | 2022-12-16 | 中材锂膜(宁乡)有限公司 | Wet-process diaphragm extraction device and process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932199A (en) * | 2016-05-26 | 2016-09-07 | 上海双奥能源技术有限公司 | Self-sieve plate extraction device and technology in wet lithium-ion battery membrane production technology |
| CN107252572A (en) * | 2017-07-24 | 2017-10-17 | 河北金力新能源科技股份有限公司 | A kind of efficient low-consume water seal lithium ion cell film extraction process |
| WO2018098410A1 (en) * | 2016-11-26 | 2018-05-31 | George Stantchev | Portable extraction device |
| CN208583007U (en) * | 2018-08-01 | 2019-03-08 | 河北金力新能源科技股份有限公司 | A kind of spray distillation extraction equipment |
-
2018
- 2018-08-07 CN CN201810887865.2A patent/CN108970171B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932199A (en) * | 2016-05-26 | 2016-09-07 | 上海双奥能源技术有限公司 | Self-sieve plate extraction device and technology in wet lithium-ion battery membrane production technology |
| WO2018098410A1 (en) * | 2016-11-26 | 2018-05-31 | George Stantchev | Portable extraction device |
| CN107252572A (en) * | 2017-07-24 | 2017-10-17 | 河北金力新能源科技股份有限公司 | A kind of efficient low-consume water seal lithium ion cell film extraction process |
| CN208583007U (en) * | 2018-08-01 | 2019-03-08 | 河北金力新能源科技股份有限公司 | A kind of spray distillation extraction equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668425A (en) * | 2020-04-26 | 2020-09-15 | 河北金力新能源科技股份有限公司 | Meta-aramid diaphragm and preparation method thereof |
| CN115400448A (en) * | 2022-08-30 | 2022-11-29 | 华东理工大学 | Application of No. 5 industrial white oil as MTBE (methyl tert-butyl ether) extraction anti-coking agent and MTBE desulfurization method |
| CN115475408A (en) * | 2022-08-31 | 2022-12-16 | 中材锂膜(宁乡)有限公司 | Wet-process diaphragm extraction device and process |
| CN115475408B (en) * | 2022-08-31 | 2024-01-19 | 中材锂膜(宁乡)有限公司 | Wet diaphragm extraction device and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108970171B (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108970171A (en) | A kind of extraction equipment and technique | |
| CN107252572B (en) | High-efficiency low-consumption water-sealed lithium ion battery film extraction process | |
| CN206473854U (en) | One kind automation Chinese medicine is extracted and concentration systems | |
| CN105932199B (en) | In wet process lithium ion battery separator production technology from sieve plate extraction equipment and technique | |
| CN207138349U (en) | A kind of degreasing unit for lithium battery diaphragm slab | |
| CN108448197A (en) | The extracting method of waste and old lithium ionic cell electrolyte | |
| CN101266102A (en) | Cane sugar factory waste water zero discharge process | |
| CN206181583U (en) | Horizontal green oil moves back equipment of washing | |
| CN201912870U (en) | DMF (dimethyl formamide) waste gas recovery device | |
| CN103342399B (en) | Acetylene from calcium carbide peace and quiet useless sodium stripping system and method | |
| CN103215608B (en) | Integrated-type acid-washing unit | |
| CN102634381A (en) | System and method for treating benzene-contained separating water of coking benzol | |
| CN115475408B (en) | Wet diaphragm extraction device and process | |
| CN102850428B (en) | Method and device for realizing soybean protein separation by two mediums-mixed leaching | |
| CN208583007U (en) | A kind of spray distillation extraction equipment | |
| CN206739921U (en) | A kind of titanium white flour flow design air-flow crushing tail gas secondary waste heat recycling system | |
| CN104368169A (en) | MVR evaporation and concentration and ultrasonic countercurrent extraction production line | |
| CN104001338A (en) | Desolventizing system and operation process thereof | |
| CN105098147B (en) | A kind of new drop rolling sour device of smear green plate | |
| CN209636173U (en) | Chemically-cleaning device for crude oil atmospheric vacuum distillation system | |
| CN212870608U (en) | Wet diaphragm drying system and wet diaphragm extraction drying system | |
| CN205287700U (en) | Multi -functional traditional chinese medicine volatile oil and extract draw jar | |
| CN205323276U (en) | Multifunctional extraction tank | |
| CN212143737U (en) | Wet-process lithium battery diaphragm face deoiling device | |
| CN101293147B (en) | An automatic switching solvent extraction optical cable and cable glue removal equipment and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |