CN205386393U - Purify dry dewatering device of phosphoric acid flue gas - Google Patents
Purify dry dewatering device of phosphoric acid flue gas Download PDFInfo
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- CN205386393U CN205386393U CN201521108115.9U CN201521108115U CN205386393U CN 205386393 U CN205386393 U CN 205386393U CN 201521108115 U CN201521108115 U CN 201521108115U CN 205386393 U CN205386393 U CN 205386393U
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- flue gas
- phosphoric acid
- drying tower
- molecular sieve
- separator
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Abstract
The utility model discloses a purify dry dewatering device of phosphoric acid flue gas, it includes the water separator and the inside drying tower that is provided with the molecular sieve who connects gradually, water separator gas outlet connection drying tower bottom air inlet, the drying tower outside sets up the molecular sieve regeneration device, and the molecular sieve regeneration device includes separator, cooler, booster compressor and heater. The purification phosphoric acid flue gas warp that produces behind the solvent extraction the utility model discloses moisture has wherein effectively been got rid of after adsorbing dehydration to the device, has guaranteed that follow -up purification phosphoric acid flue gas system can effectual recovered solvent to it is accurate to make the emission flue gas reach the ring assessment of bids.
Description
Technical field
This utility model relates to a kind of purifying phosphoric acid flue gas drying dehydration device, belongs to technical field of phosphorous chemical industry.
Background technology
The commonly used solvent extraction technology in Wet Phosphoric Acid Market field, can realize recycling of extractant by solvent extraction, thus reducing Wet Phosphoric Acid Market production cost.Volatilizable physical property due to water and solvent, through extracting production process, containing a certain amount of water and solvent in the flue gas that purifying phosphoric acid produces, and owing to not possessing drying and dehydrating ability in follow-up purifying phosphoric acid flue gas system, causing that this system cooling capacity is inadequate, it is impossible to efficient recovery solvent, the flue gas MIBK content of discharge is big, irritant abnormal smells from the patient, does not reach environmental impact assessment requirement.
Utility model content
In view of this, this utility model provides a kind of purifying phosphoric acid flue gas drying dehydration device, and it can effectively remove the moisture in purifying phosphoric acid flue gas, it is ensured that purifying phosphoric acid flue gas system energy efficient recovery solvent, makes discharge flue gas reach environmental impact assessment standard.
For solving above technical problem, the technical scheme that this utility model provides is: a kind of purifying phosphoric acid flue gas drying dehydration device, including the water separator being sequentially connected with and the drying tower being internally provided with molecular sieve, water separator gas outlet connects drying tower bottom air inlet, arranges regenerating molecular sieve device outside described drying tower.
Above-mentioned molecular sieve is a kind of aluminosilicate, is mainly connected to form the framing structure of spaciousness by sial by oxo bridge, has the cavity that many sizes are identical in the structure, and cavity has again the micropore that many diameters are identical to be connected.When purifying phosphoric acid flue gas is by molecular sieve, the Water Molecular Adsorption less than channel diameter is at cavity inside, and the purifying phosphoric acid flue gas molecular repulsion bigger than duct outside, so that hydrone and purifying phosphoric acid flue gas molecule are separately.
Described regenerating molecular sieve device includes separator, cooler, supercharger and heater.Its connection is that described heater is connected with gas outlet, drying tower top and forms a circulation, bottom drying tower, gas outlet connects separator one, separator one connects cooler one, cooler one connects supercharger, supercharger connects separator two, separator two connects cooler two, and cooler two connects drying tower bottom air inlet.
Further, described drying tower arranges at least two, and gas drying, regenerating molecular sieve can carry out in different drying towers simultaneously, it is ensured that system is continual continuously to be carried out, it is preferable that drying tower arranges four.
Compared with prior art, this utility model utilizes molecular sieve adsorption drying principles, purifying phosphoric acid flue gas directly carries out Contact-sorption with molecular sieve and dries, adsorption process mass-and heat-transfer is abundant, dehydrating effect is good, and avoid the secondary pollution of purifying phosphoric acid flue gas, effectively achieve the drying and dehydrating of purifying phosphoric acid flue gas.This utility model is provided with regeneration cycle system simultaneously, has reached the effect of continuous process and output.
The purifying phosphoric acid flue gas produced after solvent extraction is dried through this utility model device adsorption dewatering, effectively eliminates moisture therein, it is ensured that the effective recycling design of subsequent purification phosphoric acid flue gas system energy, so that discharge flue gas reaches environmental impact assessment standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Marginal data:
1, water separator；2, separator one；3, separator two；4,5,6,7: drying tower；8, cooler one；9, cooler two；10, heater；11, supercharger.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with detailed description of the invention, the utility model is described in further detail.
Referring to Fig. 1, this utility model provides a kind of purifying phosphoric acid flue gas drying dehydration device, including the water separator 1 being sequentially connected with and four drying towers 4,5,6,7 being internally provided with molecular sieve, molecular sieve is a kind of aluminosilicate, the main framing structure being connected to form spaciousness by sial by oxo bridge, having the cavity that many sizes are identical in the structure, cavity has again the micropore that many diameters are identical to be connected.When purifying phosphoric acid flue gas is by molecular sieve, the Water Molecular Adsorption less than channel diameter is at cavity inside, and the purifying phosphoric acid flue gas molecular repulsion bigger than duct outside, so that hydrone and purifying phosphoric acid flue gas molecule are separately.Water separator 1 gas outlet connects drying tower 4,5,6,7 bottom air inlet, and described drying tower 4,5,6,7 is outside arranges regenerating molecular sieve device.Regenerating molecular sieve device includes separator, cooler, supercharger and heater.Its connection is that heater 10 is connected with gas outlet, drying tower top and forms a circulation, bottom drying tower, gas outlet connects separator 1, separator 1 connects cooler 1, cooler 1 connects supercharger 11, supercharger 11 connects separator 23, separator 23 connects cooler 29, and cooler 29 connects drying tower bottom air inlet.
The purifying phosphoric acid flue gas produced after solvent extraction initially enters after water separator 1 removes free water and enters drying tower, and in drying tower, moisture is adsorbed to be retained, and obtains qualified dry gas product from drying tower top and enters back into purifying phosphoric acid flue gas system recycling design.After absorption performs certain time, drying tower stops absorption, enter regeneration stage, blood pressure lowering is experienced successively through regenerating molecular sieve device, boosting, cold blowing, hot blow step makes the moisture being occluded in drying tower desorb from adsorption tower to carry out cooling down being got rid of, so that adsorbent obtains regeneration, make drying tower pressure close to or up raw gas pressure then through boost process, enter next absorption, desorption cycle process, in an adsorption cycle, one drying tower is in adsorption process, the other three drying tower is in different regenerative procesies, reach the purpose of process continuously.
Below it is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation is not construed as restriction of the present utility model, and protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, without departing from spirit and scope of the present utility model, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (6)
1. a purifying phosphoric acid flue gas drying dehydration device, it is characterised in that: including the water separator being sequentially connected with and the drying tower being internally provided with molecular sieve, water separator gas outlet connects drying tower bottom air inlet, arranges regenerating molecular sieve device outside described drying tower.
2. a kind of purifying phosphoric acid flue gas drying dehydration device according to claim 1, it is characterised in that: described molecular sieve is aluminosilicate.
3. a kind of purifying phosphoric acid flue gas drying dehydration device according to claim 1, it is characterised in that: described regenerating molecular sieve device includes separator, cooler, supercharger and heater.
4. a kind of purifying phosphoric acid flue gas drying dehydration device according to claim 3, it is characterized in that: described heater is connected with gas outlet, drying tower top and forms a circulation, bottom drying tower, gas outlet connects separator one, separator one connects cooler one, cooler one connects supercharger, supercharger connects separator two, and separator two connects cooler two, and cooler two connects drying tower bottom air inlet.
5. a kind of purifying phosphoric acid flue gas drying dehydration device according to claim 1, it is characterised in that: described drying tower arranges at least two.
6. a kind of purifying phosphoric acid flue gas drying dehydration device according to claim 5, it is characterised in that: described drying tower arranges four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108115.9U CN205386393U (en) | 2015-12-25 | 2015-12-25 | Purify dry dewatering device of phosphoric acid flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108115.9U CN205386393U (en) | 2015-12-25 | 2015-12-25 | Purify dry dewatering device of phosphoric acid flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205386393U true CN205386393U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201521108115.9U Active CN205386393U (en) | 2015-12-25 | 2015-12-25 | Purify dry dewatering device of phosphoric acid flue gas |
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| CN (1) | CN205386393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575735A (en) * | 2019-09-09 | 2019-12-17 | 佛山君帝环保科技有限公司 | Flue gas dehydration and white smoke elimination system |
| CN110652787A (en) * | 2018-06-28 | 2020-01-07 | 崔宸瑞 | Method for removing moisture in wet desulphurization tail gas |
-
2015
- 2015-12-25 CN CN201521108115.9U patent/CN205386393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652787A (en) * | 2018-06-28 | 2020-01-07 | 崔宸瑞 | Method for removing moisture in wet desulphurization tail gas |
| CN110575735A (en) * | 2019-09-09 | 2019-12-17 | 佛山君帝环保科技有限公司 | Flue gas dehydration and white smoke elimination system |
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