CN204550064U - A kind of Phosphoric Acid Concentration equipment - Google Patents
A kind of Phosphoric Acid Concentration equipment Download PDFInfo
- Publication number
- CN204550064U CN204550064U CN201520251365.1U CN201520251365U CN204550064U CN 204550064 U CN204550064 U CN 204550064U CN 201520251365 U CN201520251365 U CN 201520251365U CN 204550064 U CN204550064 U CN 204550064U
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- phosphoric acid
- communicated
- flashing chamber
- pump
- heat exchanger
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Abstract
The utility model discloses a kind of Phosphoric Acid Concentration equipment, and it adds unreliable, unsafe defect for what to solve in prior art concentrated anti-deposition agent.It comprises one way stop peturn valve and the condensate pump be communicated with successively, condensate draining, graphite heat exchanger, recycle pump, flashing chamber and foam removal tower; Condensate pump is communicated with vapor condensation water lines; Graphite heat exchanger is communicated with low pressure steam line; Foam removal tower is between flashing chamber top exit and pump entry, and carry out gas-liquid separation, liquid flow to graphite heat exchanger by recycle pump; Be communicated with dilute phosphoric acid pipeline and Scale inhibitors pipeline between recycle pump and flashing chamber, one way stop peturn valve is located on Scale inhibitors pipeline.The utility model structure is simple, easy to operate, its can effectively stop because of flash distillation in concentration technology process after the flow liquid that loops back enter Scale inhibitors pipeline and cause Scale inhibitors to add the possibility of difficulty, what make concentrated anti-deposition agent adds more reliable, safety.
Description
Technical field
The utility model relates to chemical production field, is specifically related to a kind of Phosphoric Acid Concentration equipment.
Background technology
In prior art, filtrate after phosphoric acid by wet process extraction filtration needs to improve concentration and is prepared into strong phosphoric acid, therefore needs to carry out dehydration by evaporation with steam, but due to the scale forming matter existence in filtrate, filtrate after making to concentrate is due to the minimizing of the water yield, cause the solubleness of foulant decline and separate out, be attached on filter pipes, reduce the heat transfer efficiency of interchanger, interchanger even can be caused to block, scale removal, cleaning difficulty, have a strong impact on production output, and increase the labor operation load of workman.
Common wet-process phosphoric acid concentration technique, along with dilute phosphoric acid directly adds concentrated anti-deposition agent, but in concentration technology process, the flow liquid that loops back after flash distillation easily enters Scale inhibitors pipeline, thus makes adding of concentrated anti-deposition agent unreliable, dangerous.
In sum, need a kind of new Phosphoric Acid Concentration equipment of design to make up above-mentioned defect.
Utility model content
The utility model proposes a kind of Phosphoric Acid Concentration equipment, add unreliable, unsafe defect for what to solve in prior art concentrated anti-deposition agent.The utility model structure is simple, easy to operate, its can effectively stop because of flash distillation in concentration technology process after the flow liquid that loops back enter Scale inhibitors pipeline and cause Scale inhibitors to add the possibility of difficulty, what make concentrated anti-deposition agent adds more reliable, safety.
The technical solution of the utility model is achieved in that
A kind of Phosphoric Acid Concentration equipment, it comprises one way stop peturn valve and the condensate pump be communicated with successively, condensate draining, graphite heat exchanger, recycle pump, flashing chamber and foam removal tower; Condensate pump is communicated with vapor condensation water lines; Graphite heat exchanger is communicated with low pressure steam line; Foam removal tower is between flashing chamber top exit and pump entry, and carry out gas-liquid separation, liquid flow to graphite heat exchanger by recycle pump; Be communicated with dilute phosphoric acid pipeline and Scale inhibitors pipeline between recycle pump and flashing chamber, one way stop peturn valve is located on Scale inhibitors pipeline.
Wherein, whirlwind scum dredger is provided with in foam removal tower.
Wherein, foam removal tower one end is connected with fluorine absorber.
Wherein, one end of flashing chamber is connected with concentrated phosphoric acid and receives tower.
Wherein, the top of flashing chamber is connected to foam removal tower.
Wherein, flashing chamber is communicated to the top of graphite heat exchanger.
Compared with prior art, the utility model, by arranging one way stop peturn valve on Scale inhibitors pipeline, can stop the flow liquid that loops back in concentration technology process after flash distillation to enter Scale inhibitors pipeline, and what make concentrated anti-deposition agent adds more reliable, safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model Phosphoric Acid Concentration equipment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, the utility model discloses a kind of Phosphoric Acid Concentration equipment, and it comprises one way stop peturn valve 1 and the condensate pump 2 be communicated with successively, condensate draining 3, graphite heat exchanger 4, recycle pump 5, flashing chamber 6 and foam removal tower 7; Condensate pump 2 is communicated with vapor condensation water lines 21; Graphite heat exchanger 4 is communicated with low pressure steam line 41; Foam removal tower 7, between flashing chamber 6 top exit and recycle pump 5 entrance, carries out gas-liquid separation, and liquid flow to graphite heat exchanger 4 by recycle pump 5; Be communicated with dilute phosphoric acid pipeline 8 and Scale inhibitors pipeline 9 between recycle pump 5 and flashing chamber 6, one way stop peturn valve 1 is located on Scale inhibitors pipeline 9; Flashing chamber 6 is communicated to the top of graphite heat exchanger 4, and one end of flashing chamber 6 is connected with concentrated phosphoric acid reception tower 10, and the top of flashing chamber 6 is connected to foam removal tower 7.
The utility model flashing chamber is communicated to the top of graphite heat exchanger, and after facilitating the dilute phosphoric acid heating in graphite heat exchanger, its hot acid enters into flashing chamber.The low-pressure steam inputted in graphite heat exchanger in the utility model low pressure steam line condensation after heat exchange flows into condensate draining, is exported, utilize in order to following cycle by condensate pump from condensate line.
The utility model foam removal tower one end is connected with fluorine absorber 11, and is provided with whirlwind scum dredger (not shown) in foam removal tower.Circulation silicofluoric acid content in fluorine absorber can regulate in 10 ~ 18%, and the secondary steam that flashing chamber is overflowed by whirlwind scum dredger is separated phosphoric acid foam, and the fluoro-gas be separated after phosphoric acid foam enters fluorine absorber.
The workflow of the utility model Phosphoric Acid Concentration equipment is: dilute phosphoric acid enters recycle pump by dilute phosphoric acid pipeline after metering, concentrated anti-deposition agent enters recycle pump by Scale inhibitors pipeline after metering, the mixture of dilute phosphoric acid and concentrated anti-deposition agent mixes with a large amount of recycled phosphoric acid in recycle pump, relend and help recycle pump to enter graphite heat exchanger, adopt the dilute phosphoric acid in the low-pressure steam heated graphite interchanger inputted in low pressure steam line, hot acid after heating enters flashing chamber, obtains concentrated phosphoric acid after moisture flash distillation; The secondary steam of flashing chamber effusion is through whirlwind scum dredger, and the fluoro-gas be separated after phosphoric acid foam enters after fluorine absorber removes fluorine and discharges; Those skilled in the art can also increase emission-control equipment as required after fluorine absorber, only need reach the object of environmental protection.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a Phosphoric Acid Concentration equipment, is characterized in that, it comprises one way stop peturn valve and the condensate pump be communicated with successively, condensate draining, graphite heat exchanger, recycle pump, flashing chamber and foam removal tower;
Condensate pump is communicated with vapor condensation water lines; Graphite heat exchanger is communicated with low pressure steam line; Foam removal tower is between flashing chamber top exit and pump entry;
Be communicated with dilute phosphoric acid pipeline and Scale inhibitors pipeline between recycle pump and flashing chamber, one way stop peturn valve is located on Scale inhibitors pipeline.
2. Phosphoric Acid Concentration equipment as claimed in claim 1, is characterized in that, be provided with whirlwind scum dredger in foam removal tower.
3. Phosphoric Acid Concentration equipment as claimed in claim 2, it is characterized in that, foam removal tower one end is connected with fluorine absorber.
4. Phosphoric Acid Concentration equipment as claimed in claim 3, is characterized in that, one end of flashing chamber is connected with concentrated phosphoric acid and receives tower.
5. Phosphoric Acid Concentration equipment as claimed in claim 4, it is characterized in that, the top of flashing chamber is connected to foam removal tower.
6. the Phosphoric Acid Concentration equipment according to any one of claim 1-5, is characterized in that, flashing chamber is communicated to the top of graphite heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251365.1U CN204550064U (en) | 2015-04-23 | 2015-04-23 | A kind of Phosphoric Acid Concentration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251365.1U CN204550064U (en) | 2015-04-23 | 2015-04-23 | A kind of Phosphoric Acid Concentration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204550064U true CN204550064U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520251365.1U Expired - Fee Related CN204550064U (en) | 2015-04-23 | 2015-04-23 | A kind of Phosphoric Acid Concentration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204550064U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293460A (en) * | 2015-11-18 | 2016-02-03 | 贵州开磷集团股份有限公司 | Energy source recovery system for ammonium phosphate production |
| CN105668535A (en) * | 2015-12-31 | 2016-06-15 | 贵州开磷集团股份有限公司 | Concentration method and concentration apparatus for wet method phosphorus acid |
| CN108726494A (en) * | 2017-04-20 | 2018-11-02 | 艺康美国股份有限公司 | Dirt control in phosphoric acid production and processing equipment |
-
2015
- 2015-04-23 CN CN201520251365.1U patent/CN204550064U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293460A (en) * | 2015-11-18 | 2016-02-03 | 贵州开磷集团股份有限公司 | Energy source recovery system for ammonium phosphate production |
| CN105668535A (en) * | 2015-12-31 | 2016-06-15 | 贵州开磷集团股份有限公司 | Concentration method and concentration apparatus for wet method phosphorus acid |
| CN108726494A (en) * | 2017-04-20 | 2018-11-02 | 艺康美国股份有限公司 | Dirt control in phosphoric acid production and processing equipment |
| CN108726494B (en) * | 2017-04-20 | 2023-05-02 | 艺康美国股份有限公司 | Scale control in phosphoric acid production and treatment plants |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20200423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |