CN109734117A - A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter - Google Patents
A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter Download PDFInfo
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- CN109734117A CN109734117A CN201811559574.7A CN201811559574A CN109734117A CN 109734117 A CN109734117 A CN 109734117A CN 201811559574 A CN201811559574 A CN 201811559574A CN 109734117 A CN109734117 A CN 109734117A
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- calcium chloride
- chloride solution
- organic matter
- useless
- reutilization
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The technique of the present invention provides a kind of useless calcium chloride solution cycling and reutilization containing organic matter, useless calcium chloride solution enters recirculation heater through evaporating column, circulating-heating pump, recirculation heater is heated using steam, evaporating column is again introduced into after the completion of heating, utilize the difference of water, organic matter boiling point in useless calcium chloride solution, successively isolate organic matter and water therein, qualified calcium chloride solution enters calcium chloride storage tank through circulating-heating pump and is recycled, and the recovery utilization rate of calcium chloride reaches 95~98%.
Description
Technical field
The present invention relates to a kind of techniques of useless calcium chloride solution cycling and reutilization, and in particular to a kind of useless chlorine containing organic matter
The technique for changing calcium solution cycling and reutilization, belongs to field of waste water treatment.
Technical background
Calcium chloride solution has lower freezing point, is all used as refrigerating medium or anti-icing fluid in numerous areas such as chemical industry, food,
The calcium chloride solution of various concentration, freezing point from can 0 DEG C be reduced to -51 DEG C.
Have in chemical industry using the freezing water removal of calcium chloride low-freezing and is widely applied very much, the cracking in tetrafluoroethene device
Gas is after washing, alkali cleaning, and containing a large amount of organic matter and moisture, calcium chloride (18~26% concentration) is freezing water scavenging system just
It is able to satisfy the requirement of tetrafluoroethene refining step well.The cracking gas of calcium chloride solution and tetrafluoroethene comes into full contact with, and removes wherein
Organic matter and moisture it is molten to produce the largely useless calcium chloride containing organic matter with the long-term operation of tetrafluoroethene device
Liquid, useless calcium chloride solution are all sent to sewage-treatment plant, cause the waste of calcium chloride solution, while increasing sewage treatment
Cost, it is uneconomical not environmentally.
Summary of the invention
The technique of the purpose of the present invention is to provide a kind of useless calcium chloride solution cycling and reutilization containing organic matter, using useless
The difference of water, organic matter boiling point in calcium chloride solution, realizes the recycling of calcium chloride solution.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter, comprising:
Useless calcium chloride solution enters evaporating column, and the calcium chloride solution in evaporating column enters circulating-heating through circulating-heating pump
Device heats recirculation heater using steam, and calcium chloride solution is again introduced into evaporating column, using water in useless calcium chloride solution, has
The difference of machine object boiling point first isolates the lower organic matter of boiling point, continues heating and is separated again from the moisture in calcium chloride solution, is closed
The calcium chloride solution of lattice enters calcium chloride storage tank through circulating-heating pump and is recycled, and realizes the recycling of calcium chloride, chlorination
Online concentration analyzer is arranged in calcium outlet.The organic matter and water isolated enter exhaust gas cooler, and water enters cold after supercooling
Lime set storage tank, organic matter are discharged into incineration system through vacuum pump and are burned.
Further, the evaporating column is operated under negative pressure, and operating pressure is -95~-98kpa.
Further, the temperature of the recirculation heater is controlled at 100~120 DEG C.
Further, the tail gas condenser temperature is controlled at 60~80 DEG C.
Further, the qualified calcium chloride solution concentration is 22% or more.
Further, the calcium chloride recovery utilization rate is 95~98%.
The invention has the benefit that
1, the present invention is environmental protection and energy saving design, and recycling for useless calcium chloride may be implemented.
2, the present invention has many advantages, such as that easy to operate, the rate of recovery is high, at low cost, energy-efficient.
3, present invention adds safety interlock control systems, safe and efficient, realize automated control operation.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Process flow chart Fig. 1 of the invention；
1, evaporating column 2, recirculation heater 3, exhaust gas cooler 4, calcium chloride storage tank 5, condensate liquid storage tank 6, circulation add
Heat pump 7, vacuum pump
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
The specific embodiment of the present apparatus are as follows:
Embodiment 1:
Useless calcium chloride solution enters evaporating column 1, and the pressure of evaporating column 1 is -95kpa, the calcium chloride solution warp in evaporating column
Circulating-heating pump 6 enters recirculation heater 2 and heats, and 2 outlet temperature of control loop heater is 100 DEG C, and calcium chloride solution is again
The lower organic matter of boiling point is first isolated using the difference of water, organic matter boiling point in useless calcium chloride solution into evaporating column 1, after
Continuous heating is separated again from the moisture in calcium chloride solution, and online concentration analyzer is arranged in calcium chloride outlet, and 22% calcium chloride is molten
Liquid is recycled through circulating-heating pump 6 into calcium chloride storage tank 4, realizes the recycling of calcium chloride, the rate of recovery of calcium chloride
It is 95%.
The organic matter and water isolated enter exhaust gas cooler 3, and 3 temperature of exhaust gas cooler is controlled at 60 DEG C, and water is through being subcooled
But enter condensate liquid storage tank 5 afterwards, organic matter is discharged into incineration system through vacuum pump 7 and is burned.
Embodiment 2:
Useless calcium chloride solution enters evaporating column 1, and the pressure of evaporating column 1 is -98kpa, the calcium chloride solution warp in evaporating column
Circulating-heating pump 6 enters recirculation heater 2 and heats, and 2 outlet temperature of control loop heater is 110 DEG C, and calcium chloride solution is again
The lower organic matter of boiling point is first isolated using the difference of water, organic matter boiling point in useless calcium chloride solution into evaporating column 1, after
Continuous heating is separated again from the moisture in calcium chloride solution, and online concentration analyzer is arranged in calcium chloride outlet, and 22% calcium chloride is molten
Liquid is recycled through circulating-heating pump 6 into calcium chloride storage tank 4, realizes the recycling of calcium chloride, the rate of recovery of calcium chloride
It is 98%.
The organic matter and water isolated enter exhaust gas cooler 3, and 3 temperature of exhaust gas cooler is controlled at 80 DEG C, and water is through being subcooled
But enter condensate liquid storage tank 5 afterwards, organic matter is discharged into incineration system through vacuum pump 7 and is burned.
Embodiment 3:
Useless calcium chloride solution enters evaporating column 1, and the pressure of evaporating column 1 is -98kpa, the calcium chloride solution warp in evaporating column
Circulating-heating pump 6 enters recirculation heater 2 and heats, and 2 outlet temperature of control loop heater is 110 DEG C, and calcium chloride solution is again
The lower organic matter of boiling point is first isolated using the difference of water, organic matter boiling point in useless calcium chloride solution into evaporating column 1, after
Continuous heating is separated again from the moisture in calcium chloride solution, and online concentration analyzer is arranged in calcium chloride outlet, and 22% calcium chloride is molten
Liquid is recycled through circulating-heating pump 6 into calcium chloride storage tank 4, realizes the recycling of calcium chloride, the rate of recovery of calcium chloride
It is 96%.
The organic matter and water isolated enter exhaust gas cooler 3, and 3 temperature of exhaust gas cooler is controlled at 70 DEG C, and water is through being subcooled
But enter condensate liquid storage tank 5 afterwards, organic matter is discharged into incineration system through vacuum pump 7 and is burned.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (6)
1. a kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter, which is characterized in that useless calcium chloride solution enters
Evaporating column, the calcium chloride solution in evaporating column are entered recirculation heater through circulating-heating pump, are added using steam to recirculation heater
Heat, calcium chloride solution are again introduced into evaporating column, using the difference of water, organic matter boiling point in useless calcium chloride solution, first isolate boiling
The lower organic matter of point continues heating and is separated again from the moisture in calcium chloride solution, and qualified calcium chloride solution is through circulating-heating
Pump enters calcium chloride storage tank and is recycled, and realizes the recycling of calcium chloride.
2. a kind of technique of useless calcium chloride solution cycling and reutilization containing organic matter according to claim 1, feature exist
In the evaporating column is operated under negative pressure, and operating pressure is -95~-98kpa.
3. a kind of technique of useless calcium chloride solution cycling and reutilization containing organic matter according to claim 1, feature exist
In the temperature of the recirculation heater is controlled at 100~120 DEG C.
4. a kind of technique of useless calcium chloride solution cycling and reutilization containing organic matter according to claim 1, feature exist
In the tail gas condenser temperature is controlled at 60~80 DEG C.
5. a kind of technique of useless calcium chloride solution cycling and reutilization containing organic matter according to claim 1, feature exist
In the qualified calcium chloride solution concentration is 22% or more.
6. a kind of technique of useless calcium chloride solution cycling and reutilization containing organic matter according to claim 1, feature exist
In the calcium chloride recovery utilization rate is 95~98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559574.7A CN109734117A (en) | 2018-12-20 | 2018-12-20 | A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811559574.7A CN109734117A (en) | 2018-12-20 | 2018-12-20 | A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter |
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| CN109734117A true CN109734117A (en) | 2019-05-10 |
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| CN201811559574.7A Pending CN109734117A (en) | 2018-12-20 | 2018-12-20 | A kind of technique of the useless calcium chloride solution cycling and reutilization containing organic matter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307202A (en) * | 2022-02-22 | 2022-04-12 | 江西思远再生资源有限公司 | Production method of calcium chloride |
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| US20170038110A1 (en) * | 2014-04-16 | 2017-02-09 | Johnson Controls Technology Company | Method for operating a chiller |
| CN107162300A (en) * | 2017-05-09 | 2017-09-15 | 北京国电富通科技发展有限责任公司 | The method that chlorination calcium is separated and recovered in the high organic wastewater of high salt |
| CN206511948U (en) * | 2016-04-01 | 2017-09-22 | 北京煜境科技有限公司 | A kind of low-temperature negative-pressure steams sour device |
| CN107913526A (en) * | 2017-12-27 | 2018-04-17 | 河北工业大学 | High level salt solution evaporation crystallization equipment and process |
| CN107921493A (en) * | 2015-06-23 | 2018-04-17 | 罗希特·D·乔什 | The method of circulating liquid waste material |
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2018
- 2018-12-20 CN CN201811559574.7A patent/CN109734117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170038110A1 (en) * | 2014-04-16 | 2017-02-09 | Johnson Controls Technology Company | Method for operating a chiller |
| CN104973638A (en) * | 2015-06-18 | 2015-10-14 | 中国科学院青岛生物能源与过程研究所 | Processing technology of high-salt high-concentration organic waste liquid |
| CN107921493A (en) * | 2015-06-23 | 2018-04-17 | 罗希特·D·乔什 | The method of circulating liquid waste material |
| CN206511948U (en) * | 2016-04-01 | 2017-09-22 | 北京煜境科技有限公司 | A kind of low-temperature negative-pressure steams sour device |
| CN107162300A (en) * | 2017-05-09 | 2017-09-15 | 北京国电富通科技发展有限责任公司 | The method that chlorination calcium is separated and recovered in the high organic wastewater of high salt |
| CN107913526A (en) * | 2017-12-27 | 2018-04-17 | 河北工业大学 | High level salt solution evaporation crystallization equipment and process |
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| CN114307202A (en) * | 2022-02-22 | 2022-04-12 | 江西思远再生资源有限公司 | Production method of calcium chloride |
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