CN104307424A - High-concentration caustic soda liquid preparation device - Google Patents
High-concentration caustic soda liquid preparation device Download PDFInfo
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- CN104307424A CN104307424A CN201410511743.5A CN201410511743A CN104307424A CN 104307424 A CN104307424 A CN 104307424A CN 201410511743 A CN201410511743 A CN 201410511743A CN 104307424 A CN104307424 A CN 104307424A
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- caustic soda
- soda liquid
- conveyance conduit
- delivery pump
- delivery
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Abstract
The invention discloses a high-concentration caustic soda liquid preparation device, comprising a preparation kettle, a delivery pump, a caustic soda liquid elevated tank and a reaction kettle, wherein the preparation kettle is communicated with an inlet of the delivery pump through a first delivery pipeline, an outlet of the delivery pump is communicated with the inlet of the caustic soda liquid elevated tank through a second delivery pipeline, the outlet of the caustic soda liquid elevated tank is communicated with the reaction kettle through a discharge pipeline, and a valve for opening or closing the discharge pipeline is arranged on the discharge pipeline. The high-concentration caustic soda liquid preparation device is characterized in that an anticorrosion self-regulating electric heat tracing tape capable of automatically adjusting the temperature is tightly wound around the outer wall of each of the first delivery pipeline, the delivery pump and the second delivery pipeline. The high-concentration caustic soda liquid preparation device has the advantages that the delivery pipelines and the delivery pump can be effectively prevented from being blocked by sodium hydroxide crystals separated out from high-concentration caustic soda liquid due to too low temperature and the working efficiency is high.
Description
Technical field
The present invention relates to high-concentration caustic soda liquid and join alkali device.
Background technology
At (R)-(+)-2-(4-hydroxyphenoxy) in the production process of propionic acid (be called for short " DHPPA "), need to use high-concentration caustic soda liquid to join alkali device and high-concentration caustic soda liquid is delivered to participation reaction in reactor, the structure that the high-concentration caustic soda liquid used at present joins alkali device is: comprise and join alkali still, join alkali still to be connected with the import of elevated tank with caustic soda liquid by conveyance conduit and delivery pump, the outlet of elevated tank with caustic soda liquid is connected with the import of reactor.The shortcoming that above-mentioned high-concentration caustic soda liquid joins alkali device is: when environment temperature is too low (as in the winter time), high-concentration caustic soda liquid easily separates out NaOH crystallization, and then blocks conveyance conduit and delivery pump, not only have impact on carrying out smoothly of production, and inconvenient maintenance, inefficiency.
Summary of the invention
The object of this invention is to provide a kind of high-concentration caustic soda liquid of conveyance conduit and delivery pump blocking that can prevent and join alkali device.
For achieving the above object, present invention employs following technical scheme: described high-concentration caustic soda liquid joins alkali device, comprise: join alkali still, delivery pump, elevated tank with caustic soda liquid and reactor, join alkali still to be connected with the import of delivery pump by the first conveyance conduit, conveying delivery side of pump is connected with the import of elevated tank with caustic soda liquid by the second conveyance conduit, the outlet of elevated tank with caustic soda liquid is connected with reactor by discharge pipe, discharge pipe is provided with the valve that can open or close discharge pipe, it is characterized in that: at the first conveyance conduit, on the outer wall of delivery pump and the second conveyance conduit, tight voluble wrapping has the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
Further, aforesaid high-concentration caustic soda liquid joins alkali device, and wherein: on the first conveyance conduit, be provided with the valve that can open or close the first conveyance conduit, on the outer wall of valve, also closely voluble wrapping has the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
Further, aforesaid high-concentration caustic soda liquid joins alkali device, wherein: on the outer wall of discharge pipe and in order on the outer wall of the valve that opens or closes discharge pipe also respectively closely voluble wrapping have the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: can effectively prevent conveyance conduit and delivery pump because of high-concentration caustic soda liquid generation of clogging due to temperature too low precipitation NaOH crystallization, considerably increase the safe handling of production, also improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram that high-concentration caustic soda liquid of the present invention joins alkali device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, described high-concentration caustic soda liquid joins alkali device, comprise: join alkali still 1, delivery pump 2, elevated tank with caustic soda liquid 3 and reactor 4, join alkali still 1 to be connected with the import of delivery pump 2 by the first conveyance conduit 5, first conveyance conduit 5 is provided with first valve 6 that can open or close the first conveyance conduit 5, the outlet of delivery pump 2 is connected with the import of elevated tank with caustic soda liquid 3 by the second conveyance conduit 7, the outlet of elevated tank with caustic soda liquid 3 is connected with reactor 4 by discharge pipe 8, discharge pipe 8 is provided with second valve 9 that can open or close discharging 8, on the outer wall of the first conveyance conduit 5, on the outer wall of the first valve 6, on the outer wall of delivery pump 2, the outer wall of the second conveyance conduit 7, on the outer wall of discharge pipe 8, and second valve 9 outer wall on respectively closely voluble wrapping have the anticorrosion temperature selflimiting electric tracing band 10 that automatically can regulate temperature,
Operation principle of the present invention is as follows: first the temperature of limit certainly of anticorrosion temperature selflimiting electric tracing band 10 is set as 60 degree, then open the first valve 6 and start delivery pump 2, the high-concentration caustic soda liquid of now joining in alkali still 1 enters elevated tank with caustic soda liquid 3 along the first conveyance conduit 5, second conveyance conduit 7 under the effect of delivery pump 2, then open the second valve 9 again, make the high-concentration caustic soda liquid in elevated tank with caustic soda liquid 3 enter in reactor 4 by the second valve 6 with discharge pipe 8; The first conveyance conduit 5, first valve 6, second conveyance conduit 7, second valve 9 is passed through with the process of discharge pipe 8 at high-concentration caustic soda liquid, anticorrosion temperature selflimiting electric tracing band 10 makes to flow through the first conveyance conduit 5, first valve 6, second conveyance conduit 7, second valve 9 all the time and controls at 60 degree with the temperature of the high-concentration caustic soda liquid of discharge pipe 8, thus effectively prevent high-concentration caustic soda liquid generation of clogging due to the too low crystallization of temperature, and then ensure that carrying out smoothly of production, not only increase the safe handling of production, also improve operating efficiency.
Claims (3)
1. high-concentration caustic soda liquid joins alkali device, comprise: join alkali still, delivery pump, elevated tank with caustic soda liquid and reactor, it is characterized in that: join alkali still and be connected with the import of delivery pump by the first conveyance conduit, conveying delivery side of pump is connected with the import of elevated tank with caustic soda liquid by the second conveyance conduit, the outlet of elevated tank with caustic soda liquid is connected with reactor by discharge pipe, discharge pipe is provided with the valve that can open or close discharge pipe, it is characterized in that: at the first conveyance conduit, on the outer wall of delivery pump and the second conveyance conduit, tight voluble wrapping has the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
2. high-concentration caustic soda liquid according to claim 1 joins alkali device, it is characterized in that: on the first conveyance conduit, be provided with the valve that can open or close the first conveyance conduit, on the outer wall of valve, also closely voluble wrapping has the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
3. high-concentration caustic soda liquid according to claim 1 joins alkali device, it is characterized in that: on the outer wall of discharge pipe and in order on the outer wall of the valve that opens or closes discharge pipe also respectively closely voluble wrapping have the anticorrosion temperature selflimiting electric tracing band that automatically can regulate temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511743.5A CN104307424A (en) | 2014-09-29 | 2014-09-29 | High-concentration caustic soda liquid preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511743.5A CN104307424A (en) | 2014-09-29 | 2014-09-29 | High-concentration caustic soda liquid preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104307424A true CN104307424A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410511743.5A Pending CN104307424A (en) | 2014-09-29 | 2014-09-29 | High-concentration caustic soda liquid preparation device |
Country Status (1)
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| CN (1) | CN104307424A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02311444A (en) * | 1989-05-29 | 1990-12-27 | Ube Ind Ltd | Production of optically active d-2-(4-hydroxy-phenoxy) propionic acid ester |
| CN201482482U (en) * | 2009-08-27 | 2010-05-26 | 浙江华友钴业股份有限公司 | Device of composite powder material |
| CN202478916U (en) * | 2012-02-03 | 2012-10-10 | 江苏泰格油墨有限公司 | Production device for liquid water-soluble resin |
| CN202510916U (en) * | 2012-04-20 | 2012-10-31 | 天津二十冶建设有限公司 | Heat preservation structure used for temporary water pipe during winter construction period |
| CN202715270U (en) * | 2012-06-15 | 2013-02-06 | 浙江远力健药业有限责任公司 | Hydrolysis equipment in production of Qingkailing compound tablets |
| CN203303917U (en) * | 2013-05-10 | 2013-11-27 | 周建东 | Alkali device |
| CN204234051U (en) * | 2014-09-29 | 2015-04-01 | 张家港市三联化工科技有限公司 | High-concentration caustic soda liquid joins alkali device |
-
2014
- 2014-09-29 CN CN201410511743.5A patent/CN104307424A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02311444A (en) * | 1989-05-29 | 1990-12-27 | Ube Ind Ltd | Production of optically active d-2-(4-hydroxy-phenoxy) propionic acid ester |
| CN201482482U (en) * | 2009-08-27 | 2010-05-26 | 浙江华友钴业股份有限公司 | Device of composite powder material |
| CN202478916U (en) * | 2012-02-03 | 2012-10-10 | 江苏泰格油墨有限公司 | Production device for liquid water-soluble resin |
| CN202510916U (en) * | 2012-04-20 | 2012-10-31 | 天津二十冶建设有限公司 | Heat preservation structure used for temporary water pipe during winter construction period |
| CN202715270U (en) * | 2012-06-15 | 2013-02-06 | 浙江远力健药业有限责任公司 | Hydrolysis equipment in production of Qingkailing compound tablets |
| CN203303917U (en) * | 2013-05-10 | 2013-11-27 | 周建东 | Alkali device |
| CN204234051U (en) * | 2014-09-29 | 2015-04-01 | 张家港市三联化工科技有限公司 | High-concentration caustic soda liquid joins alkali device |
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Legal Events
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
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| RJ01 | Rejection of invention patent application after publication |