CN206701286U - A kind of continuous reaction system - Google Patents
A kind of continuous reaction system Download PDFInfo
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- CN206701286U CN206701286U CN201720443526.6U CN201720443526U CN206701286U CN 206701286 U CN206701286 U CN 206701286U CN 201720443526 U CN201720443526 U CN 201720443526U CN 206701286 U CN206701286 U CN 206701286U
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Abstract
It the utility model is related to a kind of continuous reaction system.It includes the multistage kettle being sequentially connected in series；On one-level kettle in the multistage kettle, steam discharge pipe is also associated with（2）；The kettles at different levels in the one-level kettle downstream, are connected to steam feed pipe（3）And steam pipe（4）, and steam feed pipe（3）Outlet in the kettle below liquid level；The steam pipe connected on the kettles at different levels in the one-level kettle downstream（4）, one end is connected on this grade of kettle, the other end or is passed through in one-level kettle below liquid level or is passed through in higher level's kettle below liquid level.The utility model, which relates to, has design simple, practical, is advantageous to steady and continuous production.
Description
Technical field
It the utility model is related to the process units of methyl methacrylate, more particularly to a kind of continuous reaction system.
Background technology
Methyl methacrylate is a kind of important Organic Chemicals, is mainly used in polymerization and copolymerization art, is first
Most important industrial products in base esters of acrylic acid.The application of methyl methacrylate is covered in social every aspect, is related to
To fields such as building, electronics, medical treatment, space flight, automobiles, its demand increasingly increases.In recent years, especially high-performance high score is being pursued
On sub- material, Tri- n -butyltin methacrylate materials demand is huge and turns into research and development focus.Methyl methacrylate is that production is organic
The monomer of glass, lucite have the good transparency, impact resistance, chemical resistance, weatherability and suitable rigidity and
Density, building, optical articles, automobile etc. are widely used in, lucite is that methyl methacrylate is most important at present
End product.
The production method of methyl methacrylate mainly includes ACH methods, isobutene method and ethylene process.ACH methods are as a kind of
Tradition, ripe production technology, worldwide using at most, account for the 75% of worldwide production amount.The characteristics of ACH methods is effective
Using petrochemical industry by-product HCN, and methyl methacrylate yield is high, at the same with technique update and perfect, production
Advantage is also more obvious.At present, the esterification device routinely used is mainly the reactor that outer layer is provided with folder hot jacket, and it is pressed from both sides
Heating steam is passed through in hot jacket.But when being produced using the esterification device, its reactor lactonizes liquid level asphalitine
It is low to steam efficiency, asphalitine accumulation for a long time, attachment kettle inwall, strict demand is brought to consersion unit and control condition,
It is unfavorable for continuous production.Simultaneously because being limited by production equipment, scale, its esterification amount is limited, and adaptability has to be hoisted.
Utility model content
The purpose of this utility model is to provide a kind of continuous reaction system, it have design it is simple, practical, favorably
Produced in steady and continuous.
The purpose of this utility model is realized particular by following technical scheme：
A kind of continuous reaction system, it is characterised in that：It includes the multistage kettle being sequentially connected in series；One-level in the multistage kettle
On kettle, steam discharge pipe is also associated with；The kettles at different levels in the one-level kettle downstream, are connected to steam feed pipe and steam pipe,
And the outlet of steam feed pipe is below liquid level in kettle；The steam pipe connected on the kettles at different levels in the one-level kettle downstream, one end
It is connected on this grade of kettle, the other end or is passed through in one-level kettle below liquid level or is passed through in higher level's kettle below liquid level.
A kind of continuous reaction system, it is characterised in that：It includes the multistage kettle being sequentially connected in series；Described multistage be more than etc.
In Pyatyi；On one-level kettle in the multistage kettle, steam discharge pipe is also associated with；The kettles at different levels in the one-level kettle downstream, respectively
Steam feed pipe and steam pipe are connected with, and the outlet of the steam feed pipe is below liquid level in kettle；Two level kettle downstream
The steam pipe connected on kettles at different levels, its one end are connected on this grade of kettle, and the other end is connected below the liquid level in two level kettle；Two
The steam pipe connected on level kettle, its one end are connected on this grade of kettle, and other end connection is below the liquid level in one-level kettle.
Optimize as further, each kettle in above-mentioned multistage kettle, or indirect steam feeding line be connected with bottom,
Or the pipeloop connected with itself is connected with bottom.Without agitating device in kettle, indirect steam feeding line be passed through two
The material of circulation in secondary steam or pipeloop, you can play stirring action, and the indirect steam being passed through causes liquid in kettle
In the component such as organic matter be easier to steam from kettle top, also further control liquid-surface floating oil amount in kettle.
As further optimization, the outlet of above-mentioned steam feed pipe is at 10~20cm below liquid level in kettle.As again
One-step optimization, the exit of above-mentioned steam feed pipe are connected with shower nozzle.
As further optimization, above-mentioned kettle is preferably jacket reactor.Can by multistage kettle partly or completely
Kettle is arranged to jacket reactor, to pass through the temperature that vapours is passed through in chuck to ensure required in kettle.
Optimize as further, between the two neighboring kettle in above-mentioned multistage kettle, or by being connected with sending for emptying pump
Expects pipe line connects, or the connection of the overflow line by being joined directly together.
The quantity of kettle in the utility model can be adjusted according to production capacity, and the steam of top steam feed pipe adds
Amount is added and subtracted according to the accumulation degree of the materials such as kettle liquid-surface floating oil amount or asphalitine.
The utility model has the advantages that：
The utility model provides a kind of continuous reaction system, and it has design simple, practical, is advantageous to stable connect
Continuous production.Wherein, steam feed pipe is had additional on the kettles at different levels in one-level kettle downstream, impact and direct contact heat by steam
Source, accelerate the components such as organic matter steams efficiency, it is therefore prevented that the long-time accumulation of liquid level organic matter, attachment kettle inwall form viscous
Thick asphalitine, be advantageous to steady and continuous production, when using it for the esterifications such as the production of methyl methacrylate, solve
Long-term existing liquid level asphalitine accumulation, the problem of difficult cleaning in esterification, and comply fully with methyl methacrylate esterification
It is required that.And by combining the setting of bottom indirect steam feeding line so that the component such as organic matter in kettle in liquid is more held
Easily steamed from kettle top, also further rationally control liquid-surface floating oil amount in kettle.In addition, this continuous reaction system strong adaptability,
Not by production equipment, size limit, can flexibly solve the application requirement of different outputs.
Brief description of the drawings
Fig. 1 is the structural representation of continuous reaction system described in the utility model embodiment 1.
Fig. 2 is the structural representation of continuous reaction system described in the utility model embodiment 2.
Fig. 3 is the structural representation of continuous reaction system described in the utility model embodiment 3.
Fig. 4 is the structural representation of continuous reaction system described in the utility model embodiment 4.
Embodiment
The utility model is specifically described below by embodiment, it is necessary to it is pointed out here that be following examples
It is served only for that the utility model is further described, it is impossible to be interpreted as the limitation to scope of protection of the utility model, the field
Technical staff some nonessential modifications and adaptations can be made to the utility model according to above-mentioned the utility model content.
Embodiment 1
As shown in figure 1, a kind of continuous reaction system, it includes the two-stage esterifying kettle being sequentially communicated by feed-stock pipeline 8, and
Emptying pump is connected with feed-stock pipeline 8；Wherein, feed pipe 1 and steam discharge pipe 2 are also associated with one-level esterifying kettle I；Two level ester
Change and steam feed pipe 3 and steam pipe 4 are connected with kettle II, and the shower nozzle 5 of steam feed pipe 3 is located at liquid level in two level esterifying kettle II
At following 10cm；The steam pipe 4 connected on two level esterifying kettle II, its one end are connected to the top of two level esterifying kettle II, the other end
Connect below the liquid level in one-level esterifying kettle I；Two level esterifying kettle II is jacket reactor；One-level esterifying kettle I and two level esterification
Agitating device is provided with kettle II.
In practice when the continuous reaction system in this example carries out esterification, being added through feed pipe 1 has necessarily
The raw materials such as the MAAS of temperature are in one-level esterifying kettle I, then enter two level by being connected with the feed-stock pipeline 8 of emptying pump and be esterified
Kettle II；Heating steam is passed through in the chuck of two level esterifying kettle II to provide temperature needed for esterification, and is passed through by steam feed pipe 3
Steam percussion and directly contact, effectively disperseed the asphalitine that liquid level and kettle wall deposit in kettle so that the ester in kettle
Change the steam pipe 4 that gas is easier from kettle top to exit into one-level esterifying kettle I；One-level esterifying kettle I steams by the esterification being passed through
Methyl methacrylate is steamed as thermal source, removes extraction, refining step afterwards by vapour by kettle top；Ester in two level esterifying kettle II
Change acid solution and be finally discharged into sour water storage tank.
Embodiment 2
As shown in Fig. 2 a kind of continuous reaction system, it includes the two-stage esterifying kettle being sequentially communicated by feed-stock pipeline 8, and
Emptying pump is connected with feed-stock pipeline 8；Wherein, feed pipe 1 and steam discharge pipe 2 are also associated with one-level esterifying kettle I；Two level ester
Change and steam feed pipe 3 and steam pipe 4 are connected with kettle II, and the shower nozzle 5 of steam feed pipe 3 is located at liquid level in two level esterifying kettle II
At following 25cm；The steam pipe 4 connected on two level esterifying kettle II, its one end are connected to the top of two level esterifying kettle II, the other end
Connect below the liquid level in one-level esterifying kettle I；Two level esterifying kettle II is jacket reactor；The bottom connection of one-level esterifying kettle I
There is the pipeloop 7 connected with itself, and circulating pump is provided with pipeloop 7；The bottom of two level esterifying kettle II is connected with two
Secondary steam feed pipeline 6.
Continuous reaction system described in this example, the pipeloop 7 connected with itself of the bottom of one-level esterifying kettle I connection,
Stirring action is served by circulating pump in operation, and it is logical by the indirect steam feeding line 6 of the bottom of two level esterifying kettle II
Entering indirect steam so that indirect steam is stirred in the form of bubbling so that organic matter is easier to steam from kettle top in kettle,
Further rationally control liquid-surface floating oil amount in kettle.
Embodiment 3
As shown in figure 3, a kind of continuous reaction system, it includes the three-level esterifying kettle being sequentially connected in series, wherein, one-level esterifying kettle
The realization of feed-stock pipeline 8 between I and two level esterifying kettle II by being connected with emptying pump is connected, and two level esterifying kettle II is esterified with three-level
Connected between kettle III by the overflow line 9 being joined directly together；On one-level esterifying kettle I, feed pipe 1 and steam discharge pipe are also associated with
2；On two level esterifying kettle II and three-level esterifying kettle III, steam feed pipe 3 and steam pipe 4 are connected to, and steam feed pipe 3
Shower nozzle 5 is at 20cm below liquid level in esterifying kettle；The steam pipe 4 connected on two level esterifying kettle II and three-level esterifying kettle III,
Its one end is connected to the top of this grade of esterifying kettle, and the other end is connected below the liquid level in one-level esterifying kettle I；One-level esterifying kettle
I bottom is connected with the pipeloop 7 connected with itself, and is provided with circulating pump on pipeloop 7；The kettle of two level esterifying kettle II
Bottom and the bottom of three-level esterifying kettle III, are respectively connected with indirect steam feeding line 6；Two level esterifying kettle II and three-level esterifying kettle III are equal
For jacket reactor.
Embodiment 4
As shown in figure 4, a kind of continuous reaction system, it includes the Pyatyi esterifying kettle being sequentially connected in series, wherein, one-level esterifying kettle
Between I and two level esterifying kettle II, between two level esterifying kettle II and three-level esterifying kettle III, the feed pipe by being connected with emptying pump
Line 8 realizes connection, between three-level esterifying kettle III and level Four esterifying kettle IV, between level Four esterifying kettle IV and Pyatyi esterifying kettle V,
Connected by the overflow line 9 being joined directly together；On one-level esterifying kettle I, feed pipe 1 and steam discharge pipe 2 are also associated with；Two level ester
Change on kettle II, three-level esterifying kettle III, level Four esterifying kettle IV and Pyatyi esterifying kettle V, be respectively connected with steam feed pipe 3 and steam
Steam pipe 4, and the shower nozzle 5 of steam feed pipe 3 is at 15cm below liquid level in esterifying kettle；Three-level esterifying kettle III, level Four esterifying kettle
IV and Pyatyi esterifying kettle V on the steam pipe 4 that connects respectively, its one end is connected to the top of this grade of esterifying kettle, and the other end connects
Below liquid level in two level esterifying kettle II；The steam pipe 4 connected on two level esterifying kettle II, its one end are connected to this grade of esterifying kettle
Top, other end connection is below liquid level in one-level esterifying kettle I；The bottom of one-level esterifying kettle I, the kettle of two level esterifying kettle II
Bottom is respectively connected with the pipeloop 7 connected with itself, and is provided with circulating pump on pipeloop 7；Three-level esterifying kettle III
The bottom of bottom, the bottom of level Four esterifying kettle IV and Pyatyi esterifying kettle V, respectively it is connected with indirect steam feeding line 6；Three
Level esterifying kettle III, level Four esterifying kettle IV and Pyatyi esterifying kettle V are jacket reactor.
In practice when carrying out esterification with the continuous reaction system in this example, its Pyatyi esterifying kettle be sequentially connected in series into
Material is respectively sent into subordinate by row continuous production, one-level esterifying kettle I and two level esterifying kettle II by emptying pump and feed-stock pipeline 8
Material is sent into subordinate's esterification by esterifying kettle, three-level esterifying kettle III, level Four esterifying kettle IV and Pyatyi esterifying kettle V by overflow line 9
Kettle, esterification acid solution are finally discharged into sour water storage tank；One-level esterifying kettle I and two level esterifying kettle II are pumped up by pipeloop 7 and circulation
Stirring action, rear three-level esterifying kettle play stirring action by indirect steam in the form of bubbling；Three-level esterifying kettle is steamed by heating afterwards
Vapour enters chuck and provides temperature needed for esterification, one-level esterifying kettle I and two level esterifying kettle II respectively by esterification steam as thermal source, after
The steam feed pipe 3 that level Four esterifying kettle kettle top is set up, by the impact of steam and directly contact, can effectively in Scattered Kettle liquid level with
The asphalitine of kettle wall deposition, while rear three-level esterifying kettle bottom is taken away in acid solution with indirect steam in the form of bubbling stirs
Methyl methacrylate gas so that esterification steam is easier to go out from kettle top row, and last methyl methacrylate is esterified by one-level
The kettle top of kettle I steams, and removes extraction, refining step afterwards.
According to the actual driving of this example, the asphalitine of esterifying kettle liquid level and kettle wall deposition is significantly reduced, while kettle top is esterified
Steam discharge is more unimpeded.
In, indirect steam that its three-level esterifying kettle III, level Four esterifying kettle IV and the bottom of Pyatyi esterifying kettle V are passed through can
Evaporated by the sulphur ammonium lime set of esterification acid pickle recovery sulphur ammonium, both effectively reclaimed a small amount of methyl-prop remained in sulphur ammonium lime set
E pioic acid methyl ester, while by recycling, meet energy-conserving and environment-protective, sustainable development requirement again.
Claims (9)
- A kind of 1. continuous reaction system, it is characterised in that：It includes the multistage kettle being sequentially connected in series；One-level kettle in the multistage kettle On, it is also associated with steam discharge pipe（2）；The kettles at different levels in the one-level kettle downstream, are connected to steam feed pipe（3）And steam Pipe（4）, and steam feed pipe（3）Outlet in the kettle below liquid level；The steaming connected on the kettles at different levels in the one-level kettle downstream Steam pipe（4）, one end is connected on this grade of kettle, the other end or be passed through in one-level kettle below liquid level or be passed through in higher level's kettle liquid level with Under.
- A kind of 2. continuous reaction system, it is characterised in that：It includes the multistage kettle being sequentially connected in series；Described multistage be more than or equal to Pyatyi；On one-level kettle in the multistage kettle, steam discharge pipe is also associated with（2）；The kettles at different levels in the one-level kettle downstream, respectively It is connected with steam feed pipe（3）And steam pipe（4）, and the steam feed pipe（3）Outlet in the kettle below liquid level；Two level The steam pipe connected on the kettles at different levels in kettle downstream（4）, its one end is connected on this grade of kettle, and the other end is connected in two level kettle Below liquid level；The steam pipe connected on two level kettle（4）, its one end is connected on this grade of kettle, and the other end is connected in one-level kettle Below liquid level.
- 3. continuous reaction system as claimed in claim 1 or 2, it is characterised in that：Each kettle in the multistage kettle, or in kettle Bottom is connected with indirect steam feeding line（6）, or the pipeloop connected with itself is connected with bottom（7）.
- 4. continuous reaction system as claimed in claim 1 or 2, it is characterised in that：The steam feed pipe（3）Outlet be located at kettle Below interior liquid level at 10~20cm；The steam feed pipe（3）Exit have additional shower nozzle（5）.
- 5. continuous reaction system as claimed in claim 3, it is characterised in that：The steam feed pipe（3）Outlet in the kettle Below liquid level at 10~20cm；The steam feed pipe（3）Exit have additional shower nozzle（5）.
- 6. continuous reaction system as claimed in claim 1 or 2, it is characterised in that：Described kettle is jacket reactor；The multistage Between two neighboring kettle in kettle, or by being connected with the feed-stock pipeline of emptying pump（8）Connection, or by being joined directly together Overflow line（9）Connection.
- 7. continuous reaction system as claimed in claim 3, it is characterised in that：Described kettle is jacket reactor；The multistage kettle In two neighboring kettle between, or by being connected with the feed-stock pipeline of emptying pump（8）Connection, or overflow by what is be joined directly together Flow tube line（9）Connection.
- 8. continuous reaction system as claimed in claim 4, it is characterised in that：Described kettle is jacket reactor；The multistage kettle In two neighboring kettle between, or by being connected with the feed-stock pipeline of emptying pump（8）Connection, or overflow by what is be joined directly together Flow tube line（9）Connection.
- 9. continuous reaction system as claimed in claim 5, it is characterised in that：Described kettle is jacket reactor；The multistage kettle In two neighboring kettle between, or by being connected with the feed-stock pipeline of emptying pump（8）Connection, or overflow by what is be joined directly together Flow tube line（9）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443526.6U CN206701286U (en) | 2017-04-25 | 2017-04-25 | A kind of continuous reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443526.6U CN206701286U (en) | 2017-04-25 | 2017-04-25 | A kind of continuous reaction system |
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| Publication Number | Publication Date |
|---|---|
| CN206701286U true CN206701286U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720443526.6U Expired - Fee Related CN206701286U (en) | 2017-04-25 | 2017-04-25 | A kind of continuous reaction system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672448A (en) * | 2020-04-30 | 2020-09-18 | 洛阳市奇航化工有限公司 | Reaction device applied to sodium silicate continuous production process |
| CN114534639A (en) * | 2022-02-19 | 2022-05-27 | 济宁福顺化工有限公司 | Multistage esterification reaction processing system |
-
2017
- 2017-04-25 CN CN201720443526.6U patent/CN206701286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672448A (en) * | 2020-04-30 | 2020-09-18 | 洛阳市奇航化工有限公司 | Reaction device applied to sodium silicate continuous production process |
| CN114534639A (en) * | 2022-02-19 | 2022-05-27 | 济宁福顺化工有限公司 | Multistage esterification reaction processing system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20210425 |