CN103274440B - Acid adding device, as well as method and equipment for producing calcium chloride with acid adding device - Google Patents
Acid adding device, as well as method and equipment for producing calcium chloride with acid adding device Download PDFInfo
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- CN103274440B CN103274440B CN201310257275.9A CN201310257275A CN103274440B CN 103274440 B CN103274440 B CN 103274440B CN 201310257275 A CN201310257275 A CN 201310257275A CN 103274440 B CN103274440 B CN 103274440B
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- hydrochloric acid
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Abstract
The invention relates to a method and equipment for producing calcium chloride, in particular to an acid adding device, as well as a method and equipment for producing calcium chloride with the acid adding device. The equipment for producing calcium chloride comprises an acid tank, wherein the acid tank is connected with a calcium liquid pipeline by an acid adding pump; the calcium liquid pipeline is connected with a clear liquid barrel; and the clear liquid barrel is communicated with a triple effect evaporation system by a clear liquid pump. The method for producing calcium chloride with the acid adding device comprises the steps that in a process of conveying a raw calcium liquid to the clear liquid barrel, hydrochloric acid is added to the calcium liquid pipeline by the acid adding device, the calcium liquid and hydrochloric acid enter the clear liquid barrel together to allow impurities in the calcium liquid to fully mix and react with hydrochloric acid, and finally the qualified raw calcium liquid is sent to the triple effect evaporation system by the clear liquid pump for concentration. Compared with the prior art, hydrochloric acid is added to the calcium liquid pipeline by the acid adding device, so that the content of the impurities in the raw calcium liquid is reduced effectively, evaporation and scarring of an evaporative heater are relieved greatly, an operation cycle of the equipment is prolonged, a yield of calcium chloride is increased, and the quality of calcium chloride is improved.
Description
Technical field
the present invention relates to and produce the method and apparatus of calcium chloride, specifically a kind of means for feeding acid and utilize means for feeding acid to produce the method and apparatus of calcium chloride.
Background technology
at present, a lot of solvay soda process soda factory generally utilizes discharged evaporated waste ammonia liquid to produce calcium chloride.Consume to reduce to improve calcium chloride concentration contained by waste liquid, wherein some ammonia alkali factory have employed and newly distills renovation technique.Effectively liquid waste concentration is improved after transformation, but thereupon also create a new problem, namely in new waste liquid, contained ash breast waits impurity more, well heater in subsequent evaporation production process is caused to scab fast and many, affect heat transfer effect, seriously restrict output, and the every consumption of product is raised, product basicity is high, exceeds national regulations scope.
calcium chloride producer of the same trade be all generally directly stock liquid is carried out after evaporation concentration for the production of, do not carry out pre-treatment through means for feeding acid, thus cause a large amount of impurity to enter the finished product, affect quality product.And causing evaporation heater to scab seriously, frequent cleaning, restriction is produced.
Summary of the invention
the object of the present invention is to provide a kind of means for feeding acid impurity in raw material calcium liquid effectively can removed, recycle the method and apparatus that this means for feeding acid produces calcium chloride.
means for feeding acid of the present invention adopts following technical scheme:
a kind of means for feeding acid, comprise sour tank, it is characterized in that: sour tank is arranged hydrochloric acid entrance, hydrochloric acid outlet, clean-up port and rinse mouth, wherein hydrochloric acid entrance and hydrochloric acid outlet are arranged on the side of sour tank, and clean-up port is placed in sour tank top, and rinse mouth is placed in sour pot bottom.
this means for feeding acid compared with prior art, has the simple advantage of structure, effectively can remove impurity in raw material calcium liquid in sour tank by adding hydrochloric acid.
the preferred version of means for feeding acid is:
acid tank is also provided with mouth for subsequent use and manhole, and mouth for subsequent use is placed in sour tank top.
acid tank is equipped with liquidometer.
manhole is placed in the middle part of sour tank.
the equipment utilizing means for feeding acid to produce calcium chloride adopts following technical scheme:
utilize means for feeding acid to produce an equipment for calcium chloride, comprise sour tank, sour tank is connected with calcium liquid pipeline by acid adding pump, and calcium liquid pipeline is connected with clear liquid bucket, and clear liquid bucket is by clear liquid pump and triple effect evaporation system connectivity.
adopt and produce the equipment of calcium chloride with the means for feeding acid that utilizes of technique scheme, compared with prior art, effectively can remove the impurity in raw material calcium liquid; Alleviate evaporation heater greatly to scab phenomenon, extend the equipment cycle of operation, improve product production and quality; Calcium liquid and calcium chloride output high, energy-saving effect is remarkable; Flow process is short, saves production equipment floor space; Calcium chloride product foreign matter content is few, superior in quality.
utilize means for feeding acid to produce the method for calcium chloride, adopt following technical scheme:
a kind of method utilizing means for feeding acid to produce calcium chloride, carry out as follows: raw material calcium liquid is being delivered in the process of clear liquid bucket, first by means for feeding acid, hydrochloric acid is added in calcium liquid pipeline, then calcium liquid enters clear liquid bucket together with hydrochloric acid, make the impurity in calcium liquid and hydrochloric acid fully mix and react, finally qualified raw material calcium liquid is sent into triple effect evaporation system by clear liquid pump and is gone concentrate.
the means for feeding acid that utilizes of technique scheme is adopted to produce the method for calcium chloride compared with prior art, by means for feeding acid, hydrochloric acid is added in calcium liquid pipeline, effectively reduce the foreign matter content in raw material calcium liquid, alleviate evaporation greatly to alleviate evaporation heater greatly and to scab phenomenon, extend the equipment cycle of operation, improve product production and quality.Present invention process is simple, and easy to operate, production efficiency is high, good product quality, and facility investment is little, and energy consumption is low.
the preferred version utilizing means for feeding acid to produce the method for calcium chloride is:
impurity in calcium liquid and hydrochloric acid carry out neutralization reaction.
impurity main component in calcium liquid is ash breast.
Accompanying drawing explanation
fig. 1 is the structural representation of means for feeding acid.
fig. 2 is the process flow sheet utilizing means for feeding acid to produce calcium chloride.
Embodiment
below in conjunction with drawings and Examples in detail the present invention is described in detail:
a kind of means for feeding acid, shown in accompanying drawing 1, in figure: hydrochloric acid outlet 1, hydrochloric acid entrance 2, clean-up port 3, mouth for subsequent use 4, manhole 5, rinse mouth 6, liquidometer 7.
acid tank arranges hydrochloric acid entrance 1, hydrochloric acid outlet 2, clean-up port 3, rinse mouth 6, mouth for subsequent use 4 and manhole 5, and mouth 4 for subsequent use is placed in sour tank top.
wherein hydrochloric acid entrance 2 and hydrochloric acid outlet 1 are arranged on the same side of sour tank, and clean-up port 3 is placed in sour tank top, and rinse mouth 6 is placed in sour pot bottom.
acid tank is equipped with liquidometer 7; Manhole 5 is placed in the middle part of sour tank.This means for feeding acid structure is simple, effectively can remove impurity in raw material calcium liquid in sour tank by adding hydrochloric acid.
hydrochloric acid is entered in sour tank by hydrochloric acid entrance 1 and stores, and when liquid level arrives 0.5 ~ 1.5 meter of liquid level, by the effect of acid adding pump, in the raw material calcium liquid pipeline that hydrochloric acid outputs to through hydrochloric acid outlet 1, and enters follow-up equipment clear liquid bucket therewith.
utilize means for feeding acid to produce an equipment for calcium chloride, mode of connection is see accompanying drawing 2; Acid tank is connected with calcium liquid pipeline by acid adding pump, and calcium liquid pipeline is connected with clear liquid bucket, and clear liquid bucket is by clear liquid pump and triple effect evaporation system connectivity.
utilize means for feeding acid to produce the method for calcium chloride, carry out as follows:
(flow is 90m to raw material calcium liquid
3
/ hr, CaO content 0.8ti) before entering clear liquid bucket, first by sour tank and acid adding pump, concentration is added in calcium liquid pipeline 25% ~ 30% time selecting equably; Then calcium liquid enters clear liquid bucket together with hydrochloric acid.The breast of the ash in calcium liquid is made to wait impurity fully mix with hydrochloric acid and carry out acid-base neutralisation reaction, carry out in the mol ratio ratio of CaO and HCl1:2, foreign matter content is reduced to (CaO content is 0.3 ~ 0.4ti) in production requirement indication range, adds hydrochloric acid content and control at 200 l/hr; Then deliver to original evaporization process through clear liquid pump to go to produce.
the present invention to reduce in raw material calcium liquid ash breast wait foreign matter content by adding hydrochloric acid, greatly alleviates evaporation heater and to scab phenomenon, extend the equipment cycle of operation, improve product production, quality.Present invention process is simple, and easy to operate, production efficiency is high, good product quality, and facility investment is little, and energy consumption is low.
Claims (2)
1. the method utilizing means for feeding acid to produce calcium chloride, carry out as follows: raw material calcium liquid is being delivered in the process of clear liquid bucket, first by means for feeding acid, hydrochloric acid is added in calcium liquid pipeline, then calcium liquid enters clear liquid bucket together with hydrochloric acid, make the impurity in calcium liquid and hydrochloric acid fully mix and react, finally qualified raw material calcium liquid is sent into triple effect evaporation system by clear liquid pump and is gone concentrate.
2. the method utilizing means for feeding acid to produce calcium chloride according to claim 1, is characterized in that: the impurity in calcium liquid and hydrochloric acid carry out neutralization reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257275.9A CN103274440B (en) | 2013-06-26 | 2013-06-26 | Acid adding device, as well as method and equipment for producing calcium chloride with acid adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257275.9A CN103274440B (en) | 2013-06-26 | 2013-06-26 | Acid adding device, as well as method and equipment for producing calcium chloride with acid adding device |
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| Publication Number | Publication Date |
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| CN103274440A CN103274440A (en) | 2013-09-04 |
| CN103274440B true CN103274440B (en) | 2015-02-04 |
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| CN201310257275.9A Active CN103274440B (en) | 2013-06-26 | 2013-06-26 | Acid adding device, as well as method and equipment for producing calcium chloride with acid adding device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125673A (en) * | 2007-08-28 | 2008-02-20 | 唐山三友志达钙业有限公司 | Method for directly producing calcium chloride from ammonia-soda process waste liquid |
| CN101254937A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for producing liquid calcium chloride by using industry waste acid |
| CN202052531U (en) * | 2011-05-05 | 2011-11-30 | 陈启松 | Anti-backflow and anti-volatilization acid adding device |
| CN202369652U (en) * | 2011-12-02 | 2012-08-08 | 新疆中泰化学（集团）股份有限公司 | Acid adding device for membrane method denitration process |
| CN202705492U (en) * | 2012-05-10 | 2013-01-30 | 佛山津西金兰冷轧板有限公司 | Acid washing device |
| CN202705494U (en) * | 2012-05-10 | 2013-01-30 | 佛山津西金兰冷轧板有限公司 | Cleaning device |
| CN202717579U (en) * | 2012-06-20 | 2013-02-06 | 陕西天宏硅材料有限责任公司 | Automatic hydrogen chloride-adding device for hydrogen chloride synthetic furnace |
| CN102786074A (en) * | 2012-09-03 | 2012-11-21 | 南通市明鑫化工有限公司 | Calcium chloride production process |
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Inventor after: Wang Zhide Inventor after: Li Fengwu Inventor after: Gu Yanhui Inventor after: Zhou Jian Inventor after: Zhang Tiecheng Inventor after: Dong Lei Inventor after: Cui Yanqiang Inventor after: Zhang Yonghui Inventor after: Li Zhongsheng Inventor after: Wang Wenying Inventor after: Yu Xin Inventor after: Ye Hongyao Inventor after: Guo Hongmei Inventor after: Zhang Chunli Inventor before: Wang Zhide Inventor before: Li Fengwu Inventor before: Gu Yanhui Inventor before: Zhou Jian Inventor before: Zhang Tiecheng Inventor before: Cui Yanqiang Inventor before: Zhang Yonghui Inventor before: Li Zhongsheng Inventor before: Wang Wenying Inventor before: Yu Xin Inventor before: Ye Honghui Inventor before: Guo Hongmei Inventor before: Zhang Chunli |
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Free format text: CORRECT: INVENTOR; FROM: WANG ZHIDE CUI YANQIANG ZHANG YONGHUI LI ZHONGSHENG WANG WENYING YU XIN YEHONGHUI GUO HONGMEI ZHANG CHUNLI LI FENGWU GU YANHUI ZHOU JIAN ZHANG TIECHENG TO: WANG ZHIDE CUI YANQIANG ZHANG YONGHUI LI ZHONGSHENG WANG WENYING YU XIN YE HONGYAO GUO HONGMEI ZHANG CHUNLI LI FENGWU GU YANHUI ZHOU JIAN ZHANG TIECHENG DONG LEI |