CN205575949U - Ammonium nitrate production system - Google Patents
Ammonium nitrate production system Download PDFInfo
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- CN205575949U CN205575949U CN201620221304.5U CN201620221304U CN205575949U CN 205575949 U CN205575949 U CN 205575949U CN 201620221304 U CN201620221304 U CN 201620221304U CN 205575949 U CN205575949 U CN 205575949U
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- vaporizer
- ammonium nitrate
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Abstract
The utility model provides a steam can whole condensations ammonium nitrate production system, including neutralizer, evaporimeter, surface cooler and the injection steam condenser who connects gradually, it includes steam ejector, condenser, delivery duct way to spray steam condenser, the surface cooler passes through the delivery duct way with injection steam condenser and connects, the condenser top is equipped with steam inlet, the condenser below is equipped with cooling water inlet and condensate outlet, steam ejector's export is connected with the steam inlet of condenser. The utility model has the advantages of through set up the surface cooler between evaporimeter and steam -jet ejector condenser, can be the most steam rapid condensation in the evaporimeter liquid, few part enters into the steam -jet ejector condenser and carries out the condensation, therefore steam can whole condensations.
Description
Technical field
This utility model relates to ammonium nitrate production field, specifically a kind of ammonium nitrate production system.
Background technology
Use conventional hydraulic injection vacuum extractor in existing ammonium nitrate with evaporation and crystallization system, nitrogen-containing wastewater generation amount big (there are about 700t/h through actual production situation detection), increase produces wastewater comprehensive treatment pressure.
This current operation conditions of evaporation pumped vacuum systems: through field measurement, neutralize by dust technology concentration about 40%, neutralizer outlet concentration of ammonium nitrate solution about 60%, concentration of ammonium nitrate solution about 92% after vaporizer one, dual circulation, pumped vacuum systems about 620m Han ammonia nitrogen quantity of circulating water3/ h (pump efficiency presses 70%), because of evaporation in vacuo system condensing inefficient, indirect steam only cannot all condense by condenser, before causing indirect steam to enter ejector, temperature is up to 62～70 DEG C, ejector exit water temperature is up to 58～60 DEG C, estimated outer row about 360t/h Han the ammonia nitrogen water yield.Owing to this vacuum system device condensation effect is poor, separation efficiency is low, causes ejector water consumption big, containing problems such as ammonia nitrogen amount are high in clear water.
Utility model content
Technical problem to be solved in the utility model is: provide the ammonium nitrate production system that a kind of steam can all condense.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: ammonium nitrate production system, including the neutralizer being sequentially connected with, vaporizer, surface cooler and injection steam condenser, described injection steam condenser includes steam jet ejector, condenser, steam conveying pipe, described surface cooler and injection steam condenser are connected by steam conveying pipe, described condenser is arranged over steam inlet and coolant outlet, being provided with cooling water inlet and condensation-water drain below described condenser, the outlet of described steam jet ejector is connected with the steam inlet of condenser.
Further, described vaporizer is vacuum evaporator.
Further, described neutralizer includes that the first neutralizer and the second neutralizer, described first neutralizer are provided with ammonia entrance, acid entrance and product exit, and described second neutralizer is provided with product inlet and ammonia entrance, and described product exit is connected with product inlet.
Further, described vaporizer includes that interconnective one section of vaporizer and flash evaporator, described one section of vaporizer are connected with neutralizer, and described flash evaporator is connected with surface cooler.
Further, also include that electrodialysis plant, the condensation-water drain of described condenser are connected with electrodialysis plant.
The beneficial effects of the utility model are: by arranging surface cooler between vaporizer and steam ejector condenser, can be liquid by the most of steam rapid condensation in vaporizer, small part enters into steam ejector condenser and condenses, and therefore steam can all condense；Ammonium nitrate therein again can be reclaimed by the condensed water obtained after the recirculated cooling water reusable edible making steam condense, steam condensation of surface cooler by follow-up electrodialysis plant, the soft water obtained also recoverable.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment ammonium nitrate production system schematic.
Label declaration:
11, the first neutralizer；111, ammonia conveyance conduit；112, acid conveyance conduit；12, the second neutralizer；21, one section of vaporizer；22, flash evaporator；3, surface cooler；41, steam jet ejector；42, condenser；421, steam inlet；422, cooling water inlet；423, condensation-water drain；424, coolant outlet；51, a separator；52, second separator；6, cooling tower；7, tank.
Detailed description of the invention
By describing technology contents of the present utility model in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained.
The design of this utility model most critical is: by arranging surface cooler between vaporizer and steam ejector condenser, can be liquid by the most of steam rapid condensation in vaporizer, small part enters into steam ejector condenser and condenses, and therefore steam can all condense.
Refer to Fig. 1 (in Fig. 1, arrow represents material conveying direction), a kind of ammonium nitrate production system, ammonium nitrate production system, including the neutralizer being sequentially connected with, vaporizer, surface cooler 3 and injection steam condenser, described injection steam condenser includes steam jet ejector 41, condenser 42 and steam conveying pipe, described surface cooler and injection steam condenser are connected by steam conveying pipe, described condenser is arranged over steam inlet 421 and coolant outlet 424, cooling water inlet 422 and condensation-water drain 423 it is provided with below described condenser, the outlet of described steam jet ejector is connected with the steam inlet of condenser.
nullAs can be seen from Figure 1，Ammonia is by ammonia conveyance conduit 111、Acid is passed through the first neutralizer 11 by acid conveyance conduit 112，After neutralized，Product enters into the second neutralizer 12，Continue to be passed through ammonia to the second neutralizer，Reactant passes sequentially through one section of vaporizer 21 after the second neutralizer neutralizes further、A separator 51、Flash evaporator 22 and second separator 52，Finally it is passed through surface cooler 3，Steam is condensed to rapidly less than 50 DEG C after entering surface cooler，(indirect steam of 95% is condensed by surface cooler to obtain condensed fluid，Wherein total cooling water about 1200t/h，Inflow temperature 30 DEG C，Leaving water temperature 40 DEG C)，Decline steam enters into injection steam condenser by steam conveying pipe，Make steam by total condensation，The recirculated cooling water of surface cooler enters clean water system (clean water system includes tank 7 and cooling tower 6).Compared with existing pelletize vaporising device, condensing liquid quantity about 1.75t/h can be increased, process through electrodialysis plant and reclaim, the most recyclable ammonium nitrate about 1176 tons/year, reclaims soft water about 210,000 tons/year, realizes qualified discharge simultaneously.
Knowable to foregoing description, the beneficial effects of the utility model are: by arranging surface cooler between vaporizer and steam ejector condenser, can be liquid by the most of steam rapid condensation in vaporizer, small part enters into steam ejector condenser and condenses, and therefore steam can all condense；Ammonium nitrate therein again can be reclaimed by the condensed water obtained after the recirculated cooling water reusable edible making steam condense, steam condensation of surface cooler by follow-up electrodialysis plant, the soft water obtained also recoverable.
Further, described vaporizer is vacuum evaporator.
Seen from the above description, vacuum evaporation can reduce solution boiling point so that solution also can be evaporated under the conditions of low heat, while reducing energy consumption, increases driving force of heat transfer, improves the evaporation capacity of vaporizer unit heat transfer area.
Further, described neutralizer includes that the first neutralizer and the second neutralizer, described first neutralizer are provided with ammonia entrance, acid entrance and product exit, and described second neutralizer is provided with product inlet and ammonia entrance, and described product exit is connected with product inlet.
Seen from the above description, neutralize reaction and be undertaken in two steps, the acid in reactant liquor can be made to be reacted complete, improve the productivity of ammonium nitrate.
Further, described vaporizer includes that interconnective one section of vaporizer and flash evaporator, described one section of vaporizer are connected with neutralizer, and described flash evaporator is connected with surface cooler.
Seen from the above description, neutralize reacted product and carry out multiple-effect evaporation so that ammonium nitrate crystallization as much as possible, improve ammonium nitrate productivity.
Further, also include that electrodialysis plant, the condensation-water drain of described condenser are connected with electrodialysis plant.
Seen from the above description, the condensed water electrodialysis plant that condenser is discharged is desalinated, while reclaiming ammonium nitrate, it is possible to realize the qualified discharge of waste water.
Refer to Fig. 1, embodiment of the present utility model is: ammonium nitrate production system, including the neutralizer being sequentially connected with, vaporizer, surface cooler 3 and injection steam condenser, described injection steam condenser includes steam jet ejector 41, condenser 42 and steam conveying pipe, described surface cooler and injection steam condenser are connected by steam conveying pipe, described condenser is arranged over steam inlet 421 and coolant outlet 424, being provided with cooling water inlet 422 and condensation-water drain 423 below described condenser, the outlet of described steam jet ejector is connected with the steam inlet of condenser.Described vaporizer is vacuum evaporator.Described neutralizer includes the first neutralizer 11 and the second neutralizer 12, and described first neutralizer is provided with ammonia entrance, acid entrance and product exit, and described second neutralizer is provided with product inlet and ammonia entrance, and described product exit is connected with product inlet.Described vaporizer includes that interconnective one section of vaporizer 21 and flash evaporator 22, described one section of vaporizer are connected with neutralizer, and described flash evaporator is connected with surface cooler.Also include that electrodialysis plant, the condensation-water drain of described condenser are connected with electrodialysis plant.
In sum, having the beneficial effects that of the ammonium nitrate production system that this utility model provides: by arranging surface cooler between vaporizer and steam ejector condenser, can be liquid by the most of steam rapid condensation in vaporizer, small part enters into steam ejector condenser and condenses, and therefore steam can all condense；Ammonium nitrate therein again can be reclaimed by the condensed water obtained after the recirculated cooling water reusable edible making steam condense, steam condensation of surface cooler by follow-up electrodialysis plant, the soft water obtained also recoverable；Vacuum evaporation can reduce solution boiling point so that solution also can be evaporated under the conditions of low heat, while reducing energy consumption, increases driving force of heat transfer, improves the evaporation capacity of vaporizer unit heat transfer area；
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing this utility model description and accompanying drawing content to be made; or directly or indirectly it is used in relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (5)
1. ammonium nitrate production system, it is characterised in that: the neutralizer that includes being sequentially connected with, vaporizer, table are cold
Device and injection steam condenser, described injection steam condenser includes that steam jet ejector, condenser, steam are defeated
Pipeline, described surface cooler and injection steam condenser is sent to be connected by steam conveying pipe, on described condenser
Side is provided with steam inlet and coolant outlet, is provided with cooling water inlet and condensation-water drain below described condenser,
The outlet of described steam jet ejector is connected with the steam inlet of condenser.
Ammonium nitrate production system the most according to claim 1, it is characterised in that: described vaporizer is true
Empty vaporizer.
Ammonium nitrate production system the most according to claim 1, it is characterised in that: described neutralizer includes
First neutralizer and the second neutralizer, described first neutralizer is provided with ammonia entrance, acid entrance and product exit,
Described second neutralizer is provided with product inlet and ammonia entrance, and described product exit is connected with product inlet.
Ammonium nitrate production system the most according to claim 1, it is characterised in that: described vaporizer includes
Interconnective one section of vaporizer and flash evaporator, described one section of vaporizer is connected with neutralizer, and described two
Section vaporizer is connected with surface cooler.
Ammonium nitrate production system the most according to claim 1, it is characterised in that: also include that electrodialysis fills
Putting, the condensation-water drain of described condenser is connected with electrodialysis plant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620221304.5U CN205575949U (en) | 2016-03-22 | 2016-03-22 | Ammonium nitrate production system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620221304.5U CN205575949U (en) | 2016-03-22 | 2016-03-22 | Ammonium nitrate production system |
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| CN205575949U true CN205575949U (en) | 2016-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492494A (en) * | 2016-12-07 | 2017-03-15 | 马宏波 | A kind of improve heat recovery rate and reduce the flash system of waste gas discharge |
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2016
- 2016-03-22 CN CN201620221304.5U patent/CN205575949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492494A (en) * | 2016-12-07 | 2017-03-15 | 马宏波 | A kind of improve heat recovery rate and reduce the flash system of waste gas discharge |
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