CN104984714A - Production load adjustable reaction kettle - Google Patents
Production load adjustable reaction kettle Download PDFInfo
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- CN104984714A CN104984714A CN201510436613.4A CN201510436613A CN104984714A CN 104984714 A CN104984714 A CN 104984714A CN 201510436613 A CN201510436613 A CN 201510436613A CN 104984714 A CN104984714 A CN 104984714A
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- kettle
- liquid outlet
- stirrer
- production load
- scraper
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a production load adjustable reaction kettle. The production load adjustable reaction kettle comprises a kettle body and a kettle cover, wherein the kettle body and the kettle cover are connected through a flange; a liquid inlet and a liquid outlet are formed in the kettle cover; a lower liquid outlet is formed in the bottom of the kettle body; a stirrer is arranged in the kettle body; the top of the stirrer is connected to the rotating shaft of a motor; the stirrer is a frame-type stirrer; and a scraper is arranged on the surface of the stirrer. According to the reaction kettle, the production load can be adjusted according to production plant, the kettle can run in a full or half manner, and the problem of gas-phase gel is solved; by adopting the frame-type stirrer, the relatively large diameter of a frame is beneficial for heat transfer, and driven liquid can take down a static layer from the wall of a polymeric kettle. A circulating pipe is arranged outside the kettle, and the heat of the kettle can be taken away in an external cycle manner.
Description
Technical field
The present invention relates to the adjustable reactor of a kind of production load.
Background technology
PAN precursor is the most traditional be also polymerization the most frequently used is at present polymerisation in solution, and along with production-scale expansion, the volume of reactor, along with increase, there will be a lot of problem simultaneously.Common are and stir that uneven, gum deposit, conversion ratio reduce, reaction is unstable.Existing polymeric kettle list still reaction viscosity is about 20000CP, should use single helix(ribbon type) agitator.And be full still polymerization, easily produce gel in the course of the polymerization process, cause the polymerization cycle of operation short.
Summary of the invention
For above-mentioned existing problems, the invention provides a kind of reactor, by the change of structure, effectively can solve gel problem.
Technical solution of the present invention is:
The adjustable reactor of a kind of production load, comprise kettle and kettle cover, kettle and kettle cover pass through Flange joint, kettle cover there are inlet and liquid outlet, the bottom of described kettle is provided with lower liquid outlet, has agitator in kettle, and the top of agitator connects the rotating shaft of motor, described agitator is gate stirrer, and the surface of described agitator is provided with scraper.
Further, described scraper adopts helical form or wavy scraper.
Further, be provided with outer circulating tube outside described kettle, one end of outer circulating tube is communicated with lower liquid outlet, and the other end of outer circulating tube is communicated with kettle, and the polymer fluid in kettle is returned in kettle through outer circulation pipeline by lower liquid outlet.
Further, be provided with cooling water jecket outside described kettle, in cooling water jecket, have cooling water.
The invention has the beneficial effects as follows, this kind produces the adjustable reactor of load, have the following advantages: one is can regulate according to the production schedule to produce load, and can expire still operation and also can run and solve gas phase gel problem by half still, the conversion ratio of reactor overall reaction can reach 97.5 ~ 98.5%.Two is adopt gate stirrer, and because frame diameter is comparatively large, be conducive to heat transfer, quiescent layer can get off from polymeric kettle cornice by the liquid driven.Three is have circulation pipe outside still, still outer circulation can take away heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Wherein: 1-kettle, 2-kettle cover, 3-flange, 4-agitator, 5-inlet, 6-liquid outlet, 7-scraper, 8-outer circulating tube, 9-lower liquid outlet, 10-cooling water jecket.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 1, the adjustable reactor of a kind of production load, comprise kettle 1 and kettle cover 2, kettle 1 is connected by flange 3 with kettle cover 2, has gate stirrer in kettle 1, and the surface of agitator 4 is provided with scraper 7, and scraper 7 adopts helical form or wavy scraper.Kettle cover 2 has inlet 5 and liquid outlet 6, the bottom of kettle 1 is provided with lower liquid outlet 9, and gate stirrer can be expired still operation and also can be run by half still.Due to employing is gate stirrer, and frame diameter is comparatively large, and be conducive to heat transfer, quiescent layer can get off from polymeric kettle cornice by the liquid driven, and solve gas phase gel problem, the conversion ratio of reactor overall reaction can reach 97.5 ~ 98.5%.
Kettle 1 has liquid outlet 6 and lower liquid outlet 9, produces load adjustable, and when full still runs, stoste enters subsequent processing from liquid outlet 6; When not being the operation of full still, enter subsequent processing from lower liquid outlet 9.
Embodiment two
Embodiment two produces the adjustable reactor of load with the one of embodiment one, its difference is: be provided with outer circulating tube 8 outside kettle 1, one end of outer circulating tube 8 is communicated with lower liquid outlet 9, the other end of outer circulating tube 8 is communicated with kettle 1, polymer fluid in kettle 1 returns in kettle 1 by lower liquid outlet 9 through outer circulating tube 8 line, as which form still outer circulation, thus heat can be taken away.
Embodiment four
Embodiment four produces the adjustable reactor of load with the one of embodiment one, its difference is: be provided with cooling water jecket 10 outside kettle 1, cooling water is had in cooling water jecket 10, realize constant temperature jacket and Nei Wen-jacket temperature control, improve control accuracy, stop the influence of fluctuations reaction effect of contingency or the technological parameter produced because of temperature control.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (4)
1. produce the adjustable reactor of load for one kind, it is characterized in that: comprise kettle and kettle cover, kettle and kettle cover pass through Flange joint, kettle cover there are inlet and liquid outlet, the bottom of described kettle is provided with lower liquid outlet, has agitator in kettle, and the top of agitator connects the rotating shaft of motor, described agitator is gate stirrer, and the surface of described agitator is provided with scraper.
2. the adjustable reactor of production load as claimed in claim 1, is characterized in that: described scraper adopts helical form or wavy scraper.
3. the adjustable reactor of production load as claimed in claim 1 or 2, it is characterized in that: outside described kettle, be provided with outer circulating tube, one end of outer circulating tube is communicated with lower liquid outlet, the other end of outer circulating tube is communicated with kettle, and the polymer fluid in kettle is returned in kettle through outer circulation pipeline by lower liquid outlet.
4. the adjustable reactor of production load as claimed in claim 1 or 2, is characterized in that: be provided with cooling water jecket outside described kettle, have cooling water in cooling water jecket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436613.4A CN104984714A (en) | 2015-07-23 | 2015-07-23 | Production load adjustable reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436613.4A CN104984714A (en) | 2015-07-23 | 2015-07-23 | Production load adjustable reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104984714A true CN104984714A (en) | 2015-10-21 |
Family
ID=54296678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436613.4A Pending CN104984714A (en) | 2015-07-23 | 2015-07-23 | Production load adjustable reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104984714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107245117A (en) * | 2017-07-20 | 2017-10-13 | 江苏恒神股份有限公司 | The reaction unit of polyacrylonitrile-based carbon fibre continuous solution polymerization |
-
2015
- 2015-07-23 CN CN201510436613.4A patent/CN104984714A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107245117A (en) * | 2017-07-20 | 2017-10-13 | 江苏恒神股份有限公司 | The reaction unit of polyacrylonitrile-based carbon fibre continuous solution polymerization |
| CN107245117B (en) * | 2017-07-20 | 2019-03-05 | 江苏恒神股份有限公司 | The reaction unit of polyacrylonitrile-based carbon fibre continuous solution polymerization |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |