CN211302133U - Multifunctional waste organic solvent recovery device - Google Patents
Multifunctional waste organic solvent recovery device Download PDFInfo
- Publication number
- CN211302133U CN211302133U CN201921791954.3U CN201921791954U CN211302133U CN 211302133 U CN211302133 U CN 211302133U CN 201921791954 U CN201921791954 U CN 201921791954U CN 211302133 U CN211302133 U CN 211302133U
- Authority
- CN
- China
- Prior art keywords
- liquid phase
- organic solvent
- phase outlet
- tank
- condenser
- 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.)
- Active
Links
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model belongs to the field of chemical devices, in particular to a multifunctional waste organic solvent recovery device, which comprises an integrated batch/continuous rectification system, an azeotropic rectification system and an extractive rectification system; the batch/continuous rectification system comprises a rectification kettle, a rectification tower and a condenser; the gas phase outlet of the rectifying kettle is connected with the gas phase inlet of the rectifying tower; the gas phase outlet of the rectifying tower is connected with the gas phase inlet of the condenser; the liquid phase outlet of the condenser is respectively connected with the phase separation equipment and the reflux controller through a three-way valve; one liquid phase outlet of the reflux controller is connected with a liquid phase reflux port of the rectifying tower, and the other liquid phase outlet is connected with a liquid phase inlet of the cooler; the light liquid phase outlet of the phase separation equipment is connected with the liquid phase reflux port of the rectifying tower, and the heavy liquid phase outlet is connected with the liquid phase inlet of the product tank. The multifunctional waste organic solvent device can recycle and treat various waste organic solvent raw materials, has wide application range, and can treat the waste organic solvent raw materials with approximate boiling points and azeotropic compositions.
Description
Technical Field
The utility model belongs to the chemical plant device field, concretely relates to multi-functional useless organic solvent recovery unit.
Background
In chemical industrial production, with the development of industry, the discharge of dangerous waste in industrial production process is increasing. According to the regulations of the national State of the people's republic of China for preventing and treating the solid waste from polluting the environment, the hazardous waste refers to the solid waste with hazardous characteristics listed in the national records of hazardous waste or identified according to the national regulated hazardous waste identification standard and identification method. However, the waste liquid often contains a large amount of recyclable organic solvents, and the organic solvents still have utilizable value, so along with the gradual implementation of the thirteen-five program and the falling of the legal policy, the countries encourage the resource treatment of the dangerous waste organic solvents in recent years.
In the 2016 edition of waste classification, national records of hazardous waste, waste organic solvents are mainly found in three classes, HW02, HW06 and HW 11. The recoverable organic solvent in the waste liquid is different according to the source of the waste liquid, and a few single organic solvents are mixed, and the boiling points are close or the azeotropic composition is existed. The conventional organic solvent recovery device is designed for a specific waste organic solvent, and once the components of the waste liquid or the source of the waste liquid changes, the organic solvent recovery device needs to be improved or newly built. The mode has high construction cost, large occupied area, time and labor waste, lack of flexibility and universality and poor economic benefit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect among the prior art, provide a multi-functional useless organic solvent recovery unit.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a multifunctional waste organic solvent recovery device comprises an integrated batch/continuous rectification system, an azeotropic rectification system and an extractive rectification system;
the batch/continuous rectification system comprises a rectification kettle, a rectification tower and a condenser; the gas phase outlet of the rectifying still is connected with the gas phase inlet of the rectifying tower; the gas phase outlet of the rectifying tower is connected with the gas phase inlet of the condenser; the liquid phase outlet of the condenser is respectively connected with the phase separation equipment and the reflux controller through a three-way valve; one liquid phase outlet of the reflux controller is connected with the liquid phase reflux port of the rectifying tower, and the other liquid phase outlet is connected with the liquid phase inlet of the cooler; a light liquid phase outlet of the phase separation equipment is connected with a liquid phase reflux port of the rectifying tower, and a heavy liquid phase outlet is connected with a liquid phase inlet of the product tank;
the azeotropic distillation system comprises an entrainer tank; a liquid phase outlet of the entrainer tank is communicated with an azeotropic liquid phase inlet arranged on the rectifying tower;
the extraction and rectification system comprises an extractant tank; and a liquid phase outlet of the extractant tank is communicated with an extraction liquid phase inlet arranged on the rectifying tower.
The rectifying kettles and the condensers are arranged in parallel.
The rectifying still and the condenser are 2 which are arranged in parallel.
The front end of the product tank is provided with a front fraction tank and a transition fraction tank.
And a liquid phase outlet of the transition fraction tank is communicated with a liquid phase return port of the rectifying still.
The condenser is communicated with the vacuum unit, and a vacuum buffer tank is arranged between the condenser and the vacuum unit.
This application still includes an use multi-functional useless organic solvent recovery unit's technology, specifically include a multi-functional useless organic solvent recovery unit handle the useless organic solvent method that contains heterogeneous azeotropic composition, heterogeneous azeotropic composition evaporates from the gas phase export of rectifying column, and the condensation becomes the liquid phase and gets into phase separation equipment behind the condenser, and heterogeneous azeotropic composition carries out the split phase in phase separation equipment, and the light liquid phase of azeotropic composition returns to the rectifying column from the light liquid phase export of phase separation equipment, and the heavy liquid phase of azeotropic composition gets into heavy liquid phase product jar from the heavy liquid phase export, waits to have in the rectifier kettle behind the heavy liquid phase of azeotropic composition, and the light liquid phase of azeotropic composition evaporates from the gas phase export of rectification, gets into light liquid phase product jar.
The application also comprises a process using the multifunctional waste organic solvent recovery device, specifically comprising a method for technically coupling ordinary rectification and azeotropic rectification by the multifunctional waste organic solvent recovery device, wherein a liquid phase outlet of an entrainer tank is connected with an entrainer liquid phase inlet of a rectification tower, an azeotropic composition A in the azeotropic composition of the entrainer and the waste organic solvent forms a new heterogeneous azeotropic composition, the new heterogeneous azeotropic composition is evaporated from a gas phase outlet of the rectification tower and condensed into a liquid phase by a condenser to enter a phase separation device, the heterogeneous azeotropic composition is subjected to phase separation in the phase separation device, the entrainer returns to the rectification tower from a light liquid phase outlet of the phase separation device, the azeotropic composition A enters an A product tank from a heavy liquid phase outlet, after no azeotropic composition A exists in a rectification tower, then the entrainer and the azeotropic composition B are evaporated from the gas phase outlet of the rectification tower in sequence according to the boiling point height, the entrainer enters a front fraction tank, and an azeotropic composition B enters a product tank B.
The application also comprises a process using the multifunctional waste organic solvent recovery device, in particular to a method for technically coupling ordinary rectification and extractive rectification by using the multifunctional waste organic solvent recovery device, the liquid phase outlet of the extractant tank is connected with the extractant liquid phase inlet of the rectifying tower, the extractant changes the relative volatility of azeotropic composition in the waste organic solvent, the light azeotropic composition A is evaporated from the gas phase outlet of the rectifying tower, condensed into liquid phase through a condenser, enters a reflux ratio controller for shunting, part of the liquid phase reflows into the rectifying tower, the other part of the azeotropic composition A enters a product tank A after passing through a cooler cold area, after no azeotropic composition A exists in the rectifying tower, the azeotropic composition B and the extracting agent are sequentially evaporated from a gas phase outlet of the rectifying tower according to the boiling point, the azeotropic composition B enters a product tank B, and the extracting agent enters a front fraction tank.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the multifunctional waste organic solvent recovery device technically couples batch rectification and continuous rectification, and common rectification technology with azeotropic rectification and extractive rectification. A set of multifunctional waste organic solvent device can recycle and treat various waste organic solvent raw materials, has wide application range, and can treat the waste organic solvent raw materials with approximate boiling points and azeotropic compositions.
2. A set of multifunctional waste organic solvent recovery device can process at least 6 waste organic solvent raw materials, the product purity meets the industrial grade standard, and the product recovery rate is more than 85%.
3. The multifunctional organic solvent recovery device is used for treating waste organic solvent raw materials, and has the advantages of low device construction cost, small occupied area, flexible device operation and good economic benefit.
Drawings
FIG. 1 is a schematic view of the overall structure of the multi-functional waste organic solvent recovery device of the present invention;
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
FIG. 1 shows a multi-functional spent organic solvent recovery unit comprising an integrated batch/continuous rectification system, azeotropic rectification system, and extractive rectification system;
the batch/continuous rectification system comprises rectification kettles 2 and 3, a rectification tower 1 and condensers 4 and 5; the gas phase outlet of the rectifying still is connected with the gas phase inlet of the rectifying tower; the gas phase outlet of the rectifying tower is connected with the gas phase inlet of the condenser; the liquid phase outlet of the condenser is respectively connected with a phase separation device 7 and a reflux controller 6 through a three-way valve; one liquid phase outlet of the reflux controller is connected with the liquid phase reflux port of the rectifying tower, and the other liquid phase outlet is connected with the liquid phase inlet of the cooler; a light liquid phase outlet of the phase separation equipment 7 is connected with a liquid phase reflux port of the rectifying tower 1, and a heavy liquid phase outlet is connected with liquid phase inlets of the product tanks 11 and 12;
the azeotropic distillation system comprises an entrainer tank 13; a liquid phase outlet of the entrainer tank is communicated with an azeotropic liquid phase inlet arranged on the rectifying tower;
the extractive distillation system comprises an extractant tank 14; and a liquid phase outlet of the extractant tank is communicated with an extraction liquid phase inlet arranged on the rectifying tower.
The rectifying kettles and the condensers are arranged in parallel.
The rectifying still and the condenser are 2 which are arranged in parallel.
The front ends of the product tanks 11 and 12 are provided with a front fraction tank 9 and a transition fraction tank 10.
And a liquid phase outlet of the transition fraction tank 10 is communicated with a liquid phase return port of the rectifying still.
The condenser is communicated with a vacuum unit 16, and a vacuum buffer tank 15 is arranged between the condenser and the vacuum unit.
Example 1: a process for using the multifunctional apparatus for recovering waste organic solvent includes such steps as distilling the heterogeneous azeotropic composition from the gas phase outlet of rectifying tower, condensing it to become liquid phase, phase separating, returning the light liquid phase back to rectifying tower, returning the heavy liquid phase to heavy liquid phase tank, and distilling the light liquid phase from the gas phase outlet of rectifying tower to light liquid phase tank.
Example 2: a process for using the multifunctional recovery device of waste organic solvent includes such steps as technically coupling ordinary rectification with azeotropic rectification, connecting the liquid phase outlet of entrainer tank with the liquid phase inlet of entrainer in rectifying tower, azeotropic composition A between entrainer and waste organic solvent to form new heterogeneous azeotropic composition, steaming out from gas phase outlet of rectifying tower, condensing to liquid phase by condenser, phase separating, returning the entrainer to rectifying tower from light liquid phase outlet of phase separating equipment, loading the A into product tank, steaming out the A from heavy liquid phase outlet, and sequentially steaming out azeotrope and azeotropic composition B from gas phase outlet of rectifying tower according to boiling point, the entrainer enters a front fraction tank, and an azeotropic composition B enters a product tank B.
Example 3: the process for using the multifunctional waste organic solvent recovery device specifically comprises the steps of technically coupling ordinary rectification and extractive rectification by the multifunctional waste organic solvent recovery device, wherein a liquid phase outlet of an extractant tank is connected with an extractant liquid phase inlet of a rectification tower, the extractant changes the relative volatility of azeotropic compositions in the waste organic solvent, a light azeotropic composition A is evaporated from a gas phase outlet of the rectification tower and condensed into a liquid phase after passing through a condenser, the liquid phase enters a reflux ratio controller for shunting, part of the liquid phase reflows to enter the rectification tower, the other part of the azeotropic composition A enters a product tank A after passing through a cooler cold area, after no azeotropic composition A exists in a kettle, the azeotropic composition B and the extractant are evaporated from a gas phase outlet of the rectification tower in sequence according to the boiling point height, the azeotropic composition B enters a product tank B after entering the rectification tower, and the extractant enters a front tank for fraction.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A multifunctional waste organic solvent recovery device is characterized by comprising an integrated batch/continuous rectification system, an azeotropic rectification system and an extractive rectification system;
the batch/continuous rectification system comprises a rectification kettle, a rectification tower and a condenser; the gas phase outlet of the rectifying still is connected with the gas phase inlet of the rectifying tower; the gas phase outlet of the rectifying tower is connected with the gas phase inlet of the condenser; the liquid phase outlet of the condenser is respectively connected with the phase separation equipment and the reflux controller through a three-way valve; one liquid phase outlet of the reflux controller is connected with the liquid phase reflux port of the rectifying tower, and the other liquid phase outlet is connected with the liquid phase inlet of the cooler; a light liquid phase outlet of the phase separation equipment is connected with a liquid phase reflux port of the rectifying tower, and a heavy liquid phase outlet is connected with a liquid phase inlet of the product tank;
the azeotropic distillation system comprises an entrainer tank; a liquid phase outlet of the entrainer tank is communicated with an azeotropic liquid phase inlet arranged on the rectifying tower;
the extraction and rectification system comprises an extractant tank; and a liquid phase outlet of the extractant tank is communicated with an extraction liquid phase inlet arranged on the rectifying tower.
2. The recycling device for multi-functional used organic solvent according to claim 1, wherein said rectifying still and condenser are disposed in parallel.
3. The recycling device of multi-functional used organic solvent according to claim 1, wherein said rectifying still and condenser are 2 in parallel.
4. The multi-functional waste organic solvent recovery device of claim 1, wherein the front end of the product tank is provided with a front cut tank and a transition cut tank.
5. The multi-functional waste organic solvent recovery device of claim 4, wherein the liquid phase outlet of the transition fraction tank is communicated with the liquid phase return port of the rectifying still.
6. The recycling apparatus of multi-functional used organic solvent according to claim 1, wherein said condenser is connected to a vacuum unit, and a vacuum buffer tank is disposed between said condenser and said vacuum unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921791954.3U CN211302133U (en) | 2019-10-23 | 2019-10-23 | Multifunctional waste organic solvent recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921791954.3U CN211302133U (en) | 2019-10-23 | 2019-10-23 | Multifunctional waste organic solvent recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211302133U true CN211302133U (en) | 2020-08-21 |
Family
ID=72061398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921791954.3U Active CN211302133U (en) | 2019-10-23 | 2019-10-23 | Multifunctional waste organic solvent recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211302133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681173A (en) * | 2019-10-23 | 2020-01-14 | 广州首联环境工程有限公司 | Multifunctional waste organic solvent recovery device and application thereof |
-
2019
- 2019-10-23 CN CN201921791954.3U patent/CN211302133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681173A (en) * | 2019-10-23 | 2020-01-14 | 广州首联环境工程有限公司 | Multifunctional waste organic solvent recovery device and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102190559B (en) | Method and device for refining methanol by using divided wall distillation column | |
| CN103449981B (en) | Azeotropic rectification device and method for separating propylene glycol monomethyl ether and water | |
| CN103755559B (en) | A kind of method of ion liquid abstraction rectifying separation ethyl acetate-isopropanol | |
| CN103086822B (en) | A kind of separation method of m-pentadiene | |
| CN110681173A (en) | Multifunctional waste organic solvent recovery device and application thereof | |
| CN102432453A (en) | Process and equipment for purifying dilute acetic acid solution | |
| CN101412671B (en) | Method for separating isobutyl acetate, ethanol and water by azeotropic distillation | |
| CN211302133U (en) | Multifunctional waste organic solvent recovery device | |
| CN106178571A (en) | A kind of Azeotrope separation technique | |
| CN104628522A (en) | Intermittent extractive distillation process for ethanol-methylbenzene azeotropic mixture | |
| CN112441929B (en) | Method for separating mixture of diisopropylamine and ethanol by azeotropic distillation | |
| CN107556172B (en) | Process method for producing ethylene glycol mono-tert-butyl ether | |
| CN203750202U (en) | Device for recovering hydrogen chloride from hydrochloric acid | |
| CN107473932B (en) | Method for separating butanol and butyl acetate | |
| CN102532060B (en) | Novel process for recovering N-methyl morpholine and N-ethyl morpholine | |
| CN110078584B (en) | Process for recovering dichloropropane and dichloropropene from DD mixed agent | |
| CN107337601B (en) | Method for separating isobutyl alcohol and isobutyl acetate | |
| CN108358808B (en) | Method for recovering dimethylacetamide in waste oil of cyclohexanone device | |
| CN102719282A (en) | Ethanol-water separation method based on automotive fuel and with methyl tertiary butyl ether (MTBE) serving as entrainer | |
| CN206188692U (en) | A device for extracting rectification recovery tetrahydrofuran | |
| CN104693005A (en) | New process for separating methanol-propyl formate azeotrope through extractive distillation | |
| CN208911494U (en) | The two tower multifunctional solvent recyclable devices for Alcohol Production | |
| CN104150550A (en) | Separation device and separation method of acetone-containing isopropanol liquid waste | |
| CN203494193U (en) | Azeotropic rectifying device for separating propylene glycol monomethyl ether from water | |
| CN113559536A (en) | System and method for recycling methanol from waste organic solvent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multifunctional waste organic solvent recovery device Effective date of registration: 20210518 Granted publication date: 20200821 Pledgee: Yuexiu sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: Guangzhou Shoulian Environmental Group Co.,Ltd. Registration number: Y2021440000174 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230530 Granted publication date: 20200821 |