CN115069015A - System and process method for separating impurities in organic solvent - Google Patents
System and process method for separating impurities in organic solvent Download PDFInfo
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- CN115069015A CN115069015A CN202210226352.3A CN202210226352A CN115069015A CN 115069015 A CN115069015 A CN 115069015A CN 202210226352 A CN202210226352 A CN 202210226352A CN 115069015 A CN115069015 A CN 115069015A
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- tank
- organic solvent
- impurities
- filter
- washing
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- 239000012535 impurity Substances 0.000 title claims abstract description 54
- 239000003960 organic solvent Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 26
- 238000005406 washing Methods 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000003599 detergent Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000861 blow drying Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 3
- 238000012824 chemical production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a system for separating impurities in an organic solvent, which comprises a collecting tank, a filter group, a washing tank and a fine filtering tank, wherein a liquid inlet of the fine filtering tank and a liquid outlet of the fine filtering tank are connected with the filter group; a second delivery pump is arranged between the washing tank and the filter group; a third delivery pump is arranged between the fine filtration tank and the filter group; the filter bank includes at least one high efficiency filter. The system for separating the impurities in the organic solvent avoids the danger of contacting materials by personnel, is filtered under the control of an automatic program, can completely separate the impurities, and has simple separation process and easy operation.
Description
Technical Field
The invention relates to the technical field of process methods for separating and removing organic solvents, in particular to a system and a process method for separating impurities in organic solvents.
Background
In chemical production, especially fine chemical production, the impurity removal degree in organic solvent influences the production stability and the raw material consumption, and the impurity removal in organic solvent can adopt common methods of filtration, chemical removal, distillation removal and the like, but has the defects of complicated flow design, manual operation and incapability of controlling the separation effect. In view of the above, it is desirable to design a system and process for separating impurities from organic solvents.
Disclosure of Invention
The invention aims to provide a system and a process method for separating impurities in an organic solvent, which avoid the danger of personnel contacting materials, can completely separate impurities by automatic program control filtration, and has simple separation process and easy operation.
In order to achieve the purpose, the invention provides a system for separating impurities from an organic solvent, which comprises a collecting tank, a filter group, a washing tank and a fine filtering tank, wherein a liquid inlet of the fine filtering tank and a liquid outlet of the fine filtering tank are connected with the filter group, a liquid inlet of the filter group is connected with a liquid outlet of the collecting tank, the bottom end of the filter group is connected with the washing tank, a liquid outlet of the washing tank is connected with the filter group, and a first conveying pump is arranged between the filter group and the collecting tank;
a second conveying pump is arranged between the washing tank and the filter group;
a third delivery pump is arranged between the fine filtering tank and the filter group;
the filter bank includes at least one high efficiency filter.
Preferably, the high-efficiency filters are arranged in three, and the three high-efficiency filters are connected in parallel.
Preferably, the pressure of the first delivery pump is controlled to be 0.3-0.4 MPa.
Preferably, the lower part of the high-efficiency filter is provided with a discharge valve.
Preferably, the washing tank is provided with a detergent feeding valve.
A process for separating impurities from an organic solvent, comprising the steps of:
collecting organic solvent containing impurities in a collecting tank, automatically starting a first conveying pump after the organic solvent reaches a certain liquid level, conveying the organic solvent to a first one of three parallel efficient filters, forming filter cakes by the impurities in the efficient filters, allowing the organic solvent after the filter cakes are separated to enter a fine filtering tank for fine filtering, stopping the operation of the first conveying pump when the liquid level of the organic solvent in the collecting tank reaches below 10% of a low limit, opening a blow-drying valve of the efficient filter, blowing off the organic solvent, opening a discharge valve at the lower part for back blowing after the blowing-off is stopped, allowing the impurities to fall into a hopper, conveying the impurities into a washing tank through conveying equipment, starting a detergent feeding valve on the washing tank once the washing tank is fed, adding a certain proportion of detergent, stopping the feeding when the feed liquid is full of 70%, automatically starting stirring, stirring for 1-2 hours, cleaning the organic solvent in the impurities, and finishing the washing, the valve at the bottom of the washing tank is automatically opened, the second delivery pump is started, the solution is delivered to the second high-efficiency filter, washing liquid and impurities are further filtered and separated, and repeated washing can be carried out according to actual conditions to recover the organic solvent in the impurities to the maximum extent.
Preferably, the collecting tank collects the organic solvent containing impurities, when the liquid level reaches 50% -70%, the first delivery pump is automatically started, and the pressure of the first delivery pump is controlled to be 0.3-0.4 MPa.
Preferably, the feeding valves and the discharging valves on the first conveying pump, the second conveying pump, the third conveying pump, the high-efficiency filter, the washing tank and the fine filtering tank are all connected with a DCS controller and a sequence controller.
Therefore, the system and the process method for separating the impurities in the organic solvent have the following beneficial effects:
(1) the system is formed by utilizing multi-stage high-efficiency filters which are connected in parallel or in series, so that a pure organic solvent is obtained, and meanwhile, pure impurities can be obtained, the content of the solvent in the impurities is reduced to the minimum, and the solvent consumption is saved;
(2) impurities with different particle sizes can be obtained in the recoverable impurities by classification according to different particle sizes of impurity particles, so that the recoverable value is increased;
(3) the DCS control system and the sequence control system are utilized, so that production is completely automatic or carried out, direct contact of operators with materials is avoided, safety and reliability are improved, the whole process is controlled by an automatic program, manual-free automatic operation is realized, and particularly in high-toxicity and high-risk industries, the degree of manual contact damage is effectively avoided.
(4) Combines two methods of filtering and washing, optimizes the filtering effect and simultaneously reduces the dosage of the washing solvent to the minimum.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a system flow diagram of a system and process for separating impurities from an organic solvent according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a system flow diagram of an embodiment of a system and a process for separating impurities in an organic solvent according to the present invention, and as shown in the figure, the present invention provides a system for separating impurities in an organic solvent, which includes a collection tank 1, a filter set, a washing tank 2 and a fine filtration tank 3, wherein a liquid inlet of the fine filtration tank 3 and a liquid outlet of the fine filtration tank 3 are connected to the filter set, a liquid inlet of the filter set is connected to a liquid outlet of the collection tank 1, a bottom end of the filter set is connected to the washing tank 2, a liquid outlet of the washing tank 2 is connected to the filter set, and a first transfer pump 4 is disposed between the filter set and the collection tank 1; a second delivery pump 5 is arranged between the washing tank 3 and the filter group; a third delivery pump 6 is arranged between the fine filtering tank 3 and the filter group; the filter group comprises at least one high efficiency filter 7.
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Examples
The invention provides a system for separating impurities in an organic solvent, which comprises a collecting tank 1, a filter group, a washing tank 2 and a fine filtering tank 3, wherein a liquid inlet of the fine filtering tank 3 and a liquid outlet of the fine filtering tank 3 are connected with the filter group, a liquid inlet of the filter group is connected with a liquid outlet of the collecting tank 1, the bottom end of the filter group is connected with the washing tank 2, a liquid outlet of the washing tank 2 is connected with the filter group, and a first conveying pump 4 is arranged between the filter group and the collecting tank 1; a second delivery pump 5 is arranged between the washing tank 3 and the filter group; a third delivery pump 6 is arranged between the fine filtering tank 3 and the filter group; the number of the high-efficiency filters 7 is three, and the three high-efficiency filters 7 are connected in parallel. The pressure of the first delivery pump 4 is controlled to be 0.3-0.4 MPa.
The lower part of the high-efficiency filter 7 is provided with a discharge valve. The washing tank 2 is provided with a detergent feed valve.
A process for separating impurities from an organic solvent, comprising the steps of:
collecting organic solvent containing impurities in a collecting tank, automatically starting a first conveying pump when the organic solvent reaches 50-70% of liquid level, controlling the pressure of the first conveying pump at 0.3-0.4MPa, conveying the organic solvent to a first one of three high-efficiency filters connected in parallel, forming filter cakes by the impurities in the high-efficiency filters, allowing the organic solvent after filter cake separation to enter a fine filtration tank for fine filtration, interlocking the first conveying pump to stop running when the liquid level of the organic solvent in the collecting tank reaches below 10% of a lower limit, opening a blow-drying valve of the high-efficiency filters to blow off the organic solvent, opening a discharge valve at the lower part to perform back blowing after blowing is stopped, allowing the impurities to fall into a hopper, conveying the impurities into a washing tank through conveying equipment, starting a detergent feeding valve on the washing tank once the washing tank is fed, adding a certain proportion of detergent (the proportion can be controlled to be 2: 1 or 3: 1 according to different material properties), and stopping feeding when the feed liquid is full of 70%, automatically starting stirring, stirring for 1-2 hours, cleaning the organic solvent in the impurities, finishing washing, automatically opening a valve at the bottom of the washing tank, automatically starting a second delivery pump, delivering the solution into a second high-efficiency filter, further filtering and separating the washing liquid and the impurities, and repeatedly washing for many times according to actual conditions to recover the organic solvent in the impurities to the maximum extent.
And the feed valve and the discharge valve on the first conveying pump, the second conveying pump, the third conveying pump, the high-efficiency filter, the washing tank and the fine filtering tank are connected with the DCS controller and the sequence controller.
According to the particle size difference of impurity, every density that filters internals is different in parallelly connected high efficiency filter, just so can make the impurity homoenergetic of different particle sizes under the different conditions get rid of to but the particle size gets rid of, adopt DCS full-automatic sequence control, according to the feeding difference, set up corresponding filtration flow and filtration time, can make the impurity of different content filter thoroughly, the system operation in-process need not the manual work and intervenes the operation, avoided personnel to contact the material medium, furthest's guarantee operating personnel's personal occupational safety.
Therefore, the system and the process method for separating the impurities in the organic solvent avoid the danger of contacting materials by personnel, are filtered by automatic program control, can completely separate the impurities, and have simple separation process and easy operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (8)
1. A system for separating impurities from an organic solvent, comprising:
the device comprises a collecting tank, a filter group, a washing tank and a fine filtering tank, wherein a liquid inlet of the fine filtering tank and a liquid outlet of the fine filtering tank are connected with the filter group, a liquid inlet of the filter group is connected with a liquid outlet of the collecting tank, the bottom end of the filter group is connected with the washing tank, a liquid outlet of the washing tank is connected with the filter group, and a first conveying pump is arranged between the filter group and the collecting tank;
a second conveying pump is arranged between the washing tank and the filter group;
a third delivery pump is arranged between the fine filtering tank and the filter group;
the filter bank includes at least one high efficiency filter.
2. The system of claim 1, wherein the system comprises: the high-efficiency filters are three and are connected in parallel.
3. The system of claim 1, wherein the system comprises: the pressure of the first delivery pump is controlled to be 0.3-0.4 MPa.
4. The system of claim 1, wherein the system comprises: and a discharge valve is arranged at the lower part of the high-efficiency filter.
5. The system of claim 1, wherein the system comprises: and a detergent feeding valve is arranged on the washing tank.
6. A process for the separation of impurities in organic solvents according to any one of claims 1 to 5, characterized in that it comprises the following steps:
collecting organic solvent containing impurities in a collecting tank, automatically starting a first conveying pump after the organic solvent reaches a certain liquid level, conveying the organic solvent to a first one of three parallel efficient filters, forming filter cakes by the impurities in the efficient filters, allowing the organic solvent after the filter cakes are separated to enter a fine filtering tank for fine filtering, stopping the operation of the first conveying pump when the liquid level of the organic solvent in the collecting tank reaches below 10% of a low limit, opening a blow-drying valve of the efficient filter, blowing off the organic solvent, opening a discharge valve at the lower part for back blowing after the blowing-off is stopped, allowing the impurities to fall into a hopper, conveying the impurities into a washing tank through conveying equipment, starting a detergent feeding valve on the washing tank once the washing tank is fed, adding a certain proportion of detergent, stopping the feeding when the feed liquid is full of 70%, automatically starting stirring, stirring for 1-2 hours, cleaning the organic solvent in the impurities, and finishing the washing, the valve at the bottom of the washing tank is automatically opened, the second delivery pump is started, the solution is delivered to the second high-efficiency filter, washing liquid and impurities are further filtered and separated, and repeated washing can be carried out according to actual conditions to recover the organic solvent in the impurities to the maximum extent.
7. The system and process of claim 6, wherein the system comprises: the collecting tank collects the organic solvent containing impurities, when the liquid level reaches 50% -70%, the first conveying pump is automatically started, and the pressure of the first conveying pump is controlled to be 0.3-0.4 MPa.
8. The system and process of claim 6, wherein the system comprises: and the first conveying pump, the second conveying pump, the third conveying pump, the high-efficiency filter, the washing tank and the feed valve and the discharge valve on the fine filtering tank are connected with the DCS controller and the sequence controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226352.3A CN115069015A (en) | 2022-03-09 | 2022-03-09 | System and process method for separating impurities in organic solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226352.3A CN115069015A (en) | 2022-03-09 | 2022-03-09 | System and process method for separating impurities in organic solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115069015A true CN115069015A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210226352.3A Pending CN115069015A (en) | 2022-03-09 | 2022-03-09 | System and process method for separating impurities in organic solvent |
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| Country | Link |
|---|---|
| CN (1) | CN115069015A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429280A (en) * | 2008-12-09 | 2009-05-13 | 江苏新中投资有限公司 | Continuous washing method for product in polyphenylene sulfide production |
| CN208764655U (en) * | 2018-08-28 | 2019-04-19 | 陕西明特石油技术有限公司 | A kind of drain valve drain automatic conveying device |
| CN111592909A (en) * | 2019-02-20 | 2020-08-28 | 中国石油化工股份有限公司 | Oil slurry filtering system and oil slurry filtering method thereof |
-
2022
- 2022-03-09 CN CN202210226352.3A patent/CN115069015A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429280A (en) * | 2008-12-09 | 2009-05-13 | 江苏新中投资有限公司 | Continuous washing method for product in polyphenylene sulfide production |
| CN208764655U (en) * | 2018-08-28 | 2019-04-19 | 陕西明特石油技术有限公司 | A kind of drain valve drain automatic conveying device |
| CN111592909A (en) * | 2019-02-20 | 2020-08-28 | 中国石油化工股份有限公司 | Oil slurry filtering system and oil slurry filtering method thereof |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220920 |
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| RJ01 | Rejection of invention patent application after publication |