CN213286863U - Monoether synthesizer - Google Patents
Monoether synthesizer Download PDFInfo
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- CN213286863U CN213286863U CN202022125607.6U CN202022125607U CN213286863U CN 213286863 U CN213286863 U CN 213286863U CN 202022125607 U CN202022125607 U CN 202022125607U CN 213286863 U CN213286863 U CN 213286863U
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Abstract
The utility model provides a monoether synthesizer, including the reation kettle body, centrifuge, a condenser, stills, be equipped with cooling coil in the reation kettle body, the top of the reation kettle body is equipped with the agitator, the stirring vane of this agitator is located cooling coil's sky, the top of the reation kettle body is equipped with a plurality of inlet pipes, the process medium import of condenser links to each other through the top of the first pipeline with the reation kettle body, the process medium export links to each other through the sky of second pipeline with a collection tank, the bottom of this collection tank is passed through the third pipeline and is supplied to the reation kettle body, centrifuge's feed inlet passes through the bottom of fourth pipeline with the reation kettle body and links to each other, this centrifuge's leakage fluid dram is right through the buffer tank stills feed, stills's cauldron top low boiling point component export is external to discharge monoether, stills's cauldron bottom high boiling point component export is supplied to the reation kettle body through the fifth pipeline. The utility model has the advantages of simple structure and convenient operation, chloropropene steam and excessive ethylene glycol that can effectively recycle the synthetic in-process and produce.
Description
Technical Field
The utility model relates to a chemical industry field, in particular to monoether synthesizer.
Background
The chemical industry uses ethylene glycol, chloropropene and sodium hydroxide as raw materials to synthesize monoether in a synthesizer. The boiling point of the synthesized monoether is higher than that of chloropropene and lower than that of ethylene glycol.
In the process of synthesizing the monoether, the temperature in the synthesizing device is higher, so that the chloropropene of one of the raw materials is more in volatilization loss, so that the raw materials are wasted, the ethylene glycol of the second raw material is excessive and is discharged along with the synthesized monoether, a monoether crude product is obtained after separation, and the separated ethylene glycol is directly discharged, so that the raw materials are wasted.
Therefore, how to effectively improve the utilization rate of ethylene glycol and chloropropene is a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The utility model aims at providing a monoether synthesizer to prior art's not enough, its simple structure, convenient operation can effectively recycle chloropropene steam and the excessive ethylene glycol that produces in the synthetic process.
The technical scheme of the utility model is that: a monoether synthesizer is composed of a reactor body with cooling coiled tube, a centrifugal machine with multiple feeding tubes, a condenser with multiple feeding tubes, a collecting tank with multiple feeding tubes, a reaction still with multiple feeding tubes, a cooling coil tube, a stirrer at its top, a first pipeline for feeding the technological medium of said condenser, a second pipeline for feeding the technological medium of said condenser, a collecting tank with multiple discharging tubes, a fourth pipeline for discharging monoether, and a kettle bottom high-boiling-point component outlet of the distillation kettle supplies materials to the reaction kettle body through a fifth pipeline.
And a heating jacket is arranged on the periphery of the reaction kettle body.
The top of the reaction kettle body is provided with a safety valve and a pneumatic ball valve, and the downstream ends of the safety valve and the pneumatic ball valve are connected in parallel and used for being connected with a safety discharge system.
And a sixth pipeline is arranged on the first pipeline in parallel, the upstream end of the sixth pipeline is used for being connected with a nitrogen source, and a first one-way valve is arranged on the sixth pipeline.
The first pipeline is coated with a heat insulation layer.
And the top of the collecting tank is provided with an emptying valve for connecting with a tail gas system.
And a seventh pipeline is arranged at the top of the collecting tank and is used for connecting with a vacuum-pumping system.
And a pilot shower valve is arranged on the third pipeline.
Adopt above-mentioned technical scheme to have following beneficial effect:
1. the monoether synthesis device comprises a reaction kettle body, a centrifugal machine, a condenser and a distillation kettle, wherein the reaction kettle body is used for synthesizing monoether from raw materials, the centrifugal machine is used for solid-liquid separation of materials generated by the reaction kettle body, the condenser is used for recycling chloropropene steam generated in the reaction kettle body, and the distillation kettle forcibly separates excessive diethylene glycol and target product monoether. Be equipped with cooling coil in the reation kettle body, the top of the reation kettle body is equipped with the agitator, and the stirring vane of this agitator is located cooling coil's sky for the raw materials in the reation kettle that heaies up satisfies reaction conditions, and stirring vane is used for the mixing raw materials, and avoids the local overheat of raw materials, guarantees to react and normally goes on. The top of the reaction kettle body is provided with a plurality of feeding pipes which are respectively used for being connected with the ethylene glycol source, the chloropropene source and the sodium hydroxide source, and raw materials enter the reaction kettle body through the corresponding feeding pipes, so that automatic feeding can be realized, and the feeding proportion is ensured. The process medium inlet of the condenser is connected with the top of the kettle body through the first pipeline, the process medium outlet of the condenser is connected with the inner space of a collecting tank through the second pipeline, the bottom of the collecting tank is communicated with the inner space of the reaction kettle body through the third pipeline, in the process of synthesizing monoether by raw materials in the reaction kettle body, the temperature is high, a large amount of chloropropene is evaporated due to the low boiling point of chloropropene, the steam is condensed into liquid through the condenser and collected into the collecting tank, the collected liquid chloropropene can be returned to the reaction kettle body through the third pipeline to be used as a raw material, the internal pressure of the reaction kettle body can be effectively prevented from being too high, and the chloropropene can be recycled. The feed inlet of the centrifuge is connected with the bottom of the reaction kettle body through a fourth pipeline, the liquid outlet of the centrifuge supplies materials to the distillation kettle through a buffer tank, the reaction kettle body reacts to obtain materials including generated salt, monoether and excessive glycol, the materials can enter the centrifuge through the fourth pipeline to be subjected to solid-liquid separation, the salt is separated out, the rest monoether (with a lower boiling point) and glycol (with a higher boiling point) enter the distillation kettle, the monoether is discharged outwards through distillation at the kettle top low-boiling-point component outlet of the distillation kettle, and the kettle bottom high-boiling-point component outlet of the distillation kettle supplies materials to the reaction kettle body through a fifth pipeline to complete separation of the monoether and recycle of the glycol.
2. The top of the reaction kettle body is provided with a safety valve and a pneumatic ball valve, the downstream ends of the safety valve and the pneumatic ball valve are connected in parallel and used for being connected with a safety discharge system, if the first pipeline is blocked, the pneumatic ball valve is controlled to be opened, the reaction kettle body is subjected to pressure discharge, or after the pressure exceeds a set value, the pressure is discharged through the safety valve, and the production safety of the reaction kettle body is effectively guaranteed.
3. The top of collection tank is equipped with the atmospheric valve for be connected with tail gas system, the top of collection tank is equipped with the seventh pipeline, be used for linking to each other with vacuum pumping system, can be as required, and chloropropene steam that produces in the collection tank discharges to tail gas system, guarantees production safety, also can utilize vacuum pumping system, takes chloropropene steam that the reation kettle internal produced out, improves chloropropene's recovery efficiency.
4. And a guiding and leaching valve is arranged on the third pipeline, and the collected chloropropene can be discharged by using the guiding and leaching valve and used for other purposes or storage.
The following further description is made with reference to the accompanying drawings and detailed description.
Drawings
Fig. 1 is a schematic connection diagram of the present invention.
In the attached drawing, 1 is a reaction kettle body, 2 is a centrifuge, 3 is a condenser, 4 is a distillation kettle, 5 is a cooling coil, 6 is a stirrer, 7 is a feeding pipe, 8 is a collecting tank, 9 is a buffer tank, 10 is a pneumatic ball valve, 11 is a safety valve, 12 is a first one-way valve, 13 is an emptying valve, 14 is a pilot valve, 101 is a first pipeline, 102 is a second pipeline, 103 is a third pipeline, 104 is a fourth pipeline, 105 is a fifth pipeline, 106 is a sixth pipeline, and 107 is a seventh pipeline.
Detailed Description
In this embodiment, the device that does not mark concrete structure adopts the conventional equipment in chemical industry field usually, does not mark the conventional or according to the guide suggestion of producer of the conventional or installation connection in chemical industry field of adoption of the specific installation and connection mode usually.
Referring to FIG. 1, a particular embodiment of a monoether synthesis apparatus is shown. The monoether synthesis device comprises a reaction kettle body 1, a centrifuge 2, a condenser 3 and a distillation kettle 4. Be equipped with cooling coil 5 in the reation kettle body 1, utilize circulation hot water as heating medium, heat up the internal raw materials of reation kettle, in order to improve intensification efficiency, satisfy the production demand of enterprise, the periphery of the reation kettle body 1 still is equipped with the heating jacket, heats up the internal empty material of reation kettle through letting in heat medium. The top of the reaction kettle body 1 is provided with a stirrer 6, and a stirring blade of the stirrer 6 is positioned in the hollow space of the cooling coil 5. The top of the reaction kettle body 1 is provided with a plurality of inlet pipes 7, which are respectively used for being connected with an ethylene glycol source, a chloropropene source and a sodium hydroxide source, concretely, the number of the inlet pipes is three, each inlet pipe is respectively provided with a pneumatic ball valve for controlling the opening and closing or the feeding amount of the corresponding inlet pipe, in order to meet the requirement of safe production, the top of the reaction kettle body 1 is provided with a safety valve 11 and a pneumatic ball valve 10, the safety valve 11 and the downstream end of the pneumatic ball valve 10 are connected in parallel and are used for being connected with a safe discharge system, and in emergency or according to the requirement, the pressure of the reaction kettle body can be relieved through the. The process medium inlet of the condenser 3 is connected with the top of the reaction kettle body 1 through the first pipeline 101, specifically, the first pipeline 101 is coated with a heat preservation layer, in order to improve the safety of conveying chloropropene steam, the first pipeline 101 is connected with the sixth pipeline 106 in parallel, the upstream end of the sixth pipeline 106 is used for being connected with a nitrogen source, the sixth pipeline 106 is provided with the first check valve 12, nitrogen is input to the first pipeline through the sixth pipeline, and the chloropropene steam is diluted. The process medium outlet of the condenser 3 is connected with the inner space of a collecting tank 8 through a second pipeline 102, and the condensing medium of the condenser adopts chilled water. This collection tank 8's bottom is passed through third pipeline 103 and is passed through the feed to the reation kettle body 1, in order to satisfy the actual demand, be equipped with on the third pipeline 103 and lead shower valve 14, can be used for other usage or storage with the outer row of chloropropene liquid that obtains of collecting, collection tank 8's top is equipped with atmospheric valve 13, be used for being connected with tail gas system, the chloropropene steam that produces in usable atmospheric valve will collect the jar releases row to tail gas system, in order to improve the extraction efficiency to the internal chloropropene steam of reation kettle, collection tank 8's top is equipped with seventh pipeline 107, be used for linking to each other with vacuum pumping system. The feed inlet of the centrifuge 2 is connected with the bottom of the reaction kettle body 1 through a fourth pipeline 104, and the liquid outlet of the centrifuge 2 supplies materials to the distillation kettle 4 through a buffer tank 9. And a kettle top low-boiling-point component outlet of the distillation kettle 4 externally discharges monoether for rectification and purification, and a kettle bottom high-boiling-point component outlet of the distillation kettle 4 supplies materials to the reaction kettle body 1 through a fifth pipeline 105.
The utility model discloses an operating principle does, the raw materials of synthetic monoether, during ethylene glycol, chloropropene, sodium hydroxide added into the reation kettle body according to the proportion of regulation, utilized cooling coil, heating jacket, heaied up reaction raw materials, and opened the agitator and stirred the mixing to the raw materials, the synthesis obtains the monoether. In the synthesis process, part of chloropropene is evaporated into liquid under the high-temperature condition, enters a condenser through a first pipeline, is condensed into liquid, enters a collection tank through a second pipeline for temporary storage, and can return chloropropene collected in the collection tank to a reaction kettle body as a raw material for reutilization according to actual requirements. And (3) the material generated in the reaction kettle enters a centrifuge through a fourth pipeline, solid-liquid separation is carried out through the centrifuge, after salt generated in the material is separated, the main components of the remaining material are monoether and glycol, after the material enters the distillation kettle, the monoether with a lower boiling point is discharged from a kettle top low-boiling-point component outlet of the distillation kettle and is used for further purification after condensation to obtain a target product, and the glycol is retained in the distillation kettle and discharged from a kettle bottom high-boiling-point component outlet and returns to the reaction kettle body to be used as a raw material for reutilization.
Claims (8)
1. A monoether synthesizer is characterized in that: comprises a reaction kettle body (1), a centrifuge (2), a condenser (3) and a distillation kettle (4),
a cooling coil pipe (5) is arranged in the reaction kettle body (1), a stirrer (6) is arranged at the top of the reaction kettle body (1), stirring blades of the stirrer (6) are positioned in the hollow space of the cooling coil pipe (5), a plurality of feeding pipes (7) are arranged at the top of the reaction kettle body (1) and are respectively used for being connected with an ethylene glycol source, a chloropropene source and a sodium hydroxide source,
the process medium inlet of the condenser (3) is connected with the top of the reaction kettle body (1) through a first pipeline (101), the process medium outlet of the condenser (3) is connected with the inner space of a collecting tank (8) through a second pipeline (102), the bottom of the collecting tank (8) supplies materials to the reaction kettle body (1) through a third pipeline (103),
the feed inlet of the centrifuge (2) is connected with the bottom of the reaction kettle body (1) through a fourth pipeline (104), the liquid outlet of the centrifuge (2) supplies materials to the distillation kettle (4) through a buffer tank (9),
and a kettle top low boiling point component outlet of the distillation kettle (4) discharges monoether outwards, and a kettle bottom high boiling point component outlet of the distillation kettle (4) supplies materials to the reaction kettle body (1) through a fifth pipeline (105).
2. The monoether synthesis apparatus of claim 1, wherein: and a heating jacket is arranged on the periphery of the reaction kettle body (1).
3. The monoether synthesis apparatus of claim 1, wherein: the top of the reaction kettle body (1) is provided with a safety valve (11) and a pneumatic ball valve (10), and the downstream ends of the safety valve (11) and the pneumatic ball valve (10) are connected in parallel and used for being connected with a safety discharge system.
4. The monoether synthesis apparatus of claim 1, wherein: and a sixth pipeline (106) is arranged on the first pipeline (101) in parallel, the upstream end of the sixth pipeline (106) is used for being connected with a nitrogen source, and a first check valve (12) is arranged on the sixth pipeline (106).
5. The monoether synthesis apparatus of claim 1, wherein: the first pipeline (101) is coated with an insulating layer.
6. The monoether synthesis apparatus of claim 1, wherein: and the top of the collecting tank (8) is provided with an emptying valve (13) for connecting with a tail gas system.
7. The monoether synthesis apparatus of claim 1, wherein: and a seventh pipeline (107) is arranged at the top of the collecting tank (8) and is used for being connected with a vacuum-pumping system.
8. The monoether synthesis apparatus of claim 1, wherein: and a pilot shower valve (14) is arranged on the third pipeline (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022125607.6U CN213286863U (en) | 2020-09-24 | 2020-09-24 | Monoether synthesizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022125607.6U CN213286863U (en) | 2020-09-24 | 2020-09-24 | Monoether synthesizer |
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| CN213286863U true CN213286863U (en) | 2021-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980048A (en) * | 2021-09-16 | 2022-01-28 | 太仓市茜泾化工有限公司 | Preparation method of dimethyl benzyl phosphate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980048A (en) * | 2021-09-16 | 2022-01-28 | 太仓市茜泾化工有限公司 | Preparation method of dimethyl benzyl phosphate |
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