CN206108901U - A highly efficient reaction cauldron for diammonium phosphate production - Google Patents
A highly efficient reaction cauldron for diammonium phosphate production Download PDFInfo
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- CN206108901U CN206108901U CN201621010992.7U CN201621010992U CN206108901U CN 206108901 U CN206108901 U CN 206108901U CN 201621010992 U CN201621010992 U CN 201621010992U CN 206108901 U CN206108901 U CN 206108901U
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Abstract
The utility model discloses a highly efficient reaction cauldron for diammonium phosphate production, including the thick liquids pipe, reaction tube phosphoric acid distributor pipe, the cooling tube, press from both sides the cover, spiral cooling tube and water cooling system, the thick liquids pipe, the cooling tube, reaction tube and phosphoric acid distributor pipe are the order and connect, the end cover is connected to thick liquids pipe one side, the opposite side is connected on one side of the cooling tube, the cooling tube opposite side is connected with the reaction tube, the internal diameter of reaction tube is two rank structures, it leans on the thick liquids pipe for tubular construction always, it contracts gradually to lean on phosphoric acid distributor pipe one side to be an internal diameter, the pipe wall is thickened and be continuous variation's reducing tubular construction gradually, the phosphoric acid distributor pipe is a three -way tube structure, and its both sides are ligation pipe and a gas ammonia spray tube respectively, and the other phosphoric acid conveying pipe that still is provided with of phosphoric acid distributor pipe side presss from both sides the cover and sets up in the outside of cooling tube, and spiral cooling tube sets up and is pressing from both sides between cover and the cooling tube, and water cooling system still is connected with spiral cooling tube. The utility model discloses simple structure, convenient to use.
Description
Technical field
This utility model is related to features of DAP production technical field, more specifically, more particularly to a kind of to be used for di(2-ethylhexyl)phosphate
The highly effective reaction kettle of ammonium production.
Background technology
In existing Chemical Engineering Technology, the production of Diammonium phosphate (DAP) (DAP) is generally all using preneutralization and pipe reaction
The technique that device is combined is produced, and this combined process is one kind using preneutralization drum ammonization and granulation technique and tubular reactor
The hybrid technique that the advantage of technique grows up.This technique has with respect to preneutralization drum ammonization and granulation technique allows reaction material
Slurry has higher water content, and operating flexibility is bigger, higher to material adaptability, what slurry delivery pump and feed-line were not easily blocked
Advantage；Due to the reaction for carrying out part ammonia and phosphoric acid in comminutor, the water yield for bringing comminutor into is few, revert system equipment size
Little, plant investment is low；Drying system load reduction, energy consumption are relatively low.Preneutralization reactor and high efficiency reactor is used to produce simultaneously
Phosphor ammonium slurry, in ammoniation and granulation machine (comminutor), further ammonification, directly uses strong phosphoric acid in high efficiency reactor, and utilizes
Reacting heat evaporation moisture, makes into the moisture in comminutor to reduce, so as to reduce returning charge ratio and energy efficient.
However, the usual structure of tubular reactor used in this set of technological process is excessively simple, this traditional pipe
Formula reactor directly using strong phosphoric acid when be easy to fouling, blocking.Therefore, applicant earlier application Application No.
201420152976.6 utility model patent, mainly include gas ammonia jet pipe, adpting flange, phosphoric acid distributor pipe, phosphoric acid feed pipe,
Reaction tube, slurry nozzle and end cap, its in use there exists a further problem in that, there is portion from slurry nozzle slip out
Point it is in granular form, this is that, as phosphoric acid is the polyprotic acid of moderate strength, reactional equation is as follows：
NH3(gas)+H3PO4(liquid)=NH4H2PO4+134.97kJ/mol (1)
NH3(gas)+NH4H2PO4(liquid)=(NH4)2HPO4+81.0kJ/mol (2)
Wherein first hydrion of ammonia neutralising phosphoric acid generates phosphorous acid ammonia (such as formula 1), belongs to moment irreversible heat release anti-
Should, ammonia neutralizes second hydrion and generates the speed of phosphoric acid diamino although to compare neutralization first relatively slow, but appoints to belong to and quickly put
Thermal response (such as formula 2).Substantial amounts of heat can be produced during the course of the reaction, the patent of earlier application does not account for design cooling
Scheme, this results in slip and is easily dried into granule by heat, in turn results in the phenomenons such as slurry nozzle blocking and occurs, affects normal
Use.For this reason, it is necessary to be improved to overcome above-mentioned technical problem to prior art.
Utility model content
The purpose of this utility model is the height for features of DAP production that provide a kind of simple structure, effectively can radiate
Validity response kettle.
In order to achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of highly effective reaction kettle for features of DAP production, including slurry pipe, reaction tube and phosphoric acid distributor pipe, which is also
Including a cooling tube, chuck, spiral cooling tube and water-cooling system, the slurry pipe, cooling tube, reaction tube and phosphoric acid distributor pipe
To be linked in sequence, the slurry pipe side connects end cap, and opposite side is connected with cooling tube side, the cooling tube opposite side and
Reaction tube connects, and the internal diameter of the reaction tube is two stage structures, and it is a straight tube structure which leans on slurry pipe, and leans on phosphoric acid distributor pipe one
Side is gradually tapered up for an internal diameter, tube wall is gradually thickening and be in continually varying reducing tubular construction；And the phosphoric acid distributor pipe is one
Three-way pipe structure, its both sides distinguish coupled reaction pipe and a gas ammonia jet pipe, are additionally provided with by phosphoric acid distribution tube side
Phosphoric acid feed pipe, the chuck are arranged on the outside of the cooling tube, the spiral cooling tube be arranged on chuck and cooling tube it
Between, the water-cooling system is also connected with spiral cooling tube.
Further, the water-cooling system includes water inlet pipe, outlet pipe, water cooling pond and circulating pump, described water cooling pond one end
It is connected with the import of spiral cooling tube by water inlet pipe, its other end is connected with the water side of spiral cooling tube by outlet pipe.
Further, the external diameter of the gas ammonia jet pipe is less than the internal diameter at the internal diameter minimum position of reaction tube.
Further, some slurry spouts are additionally provided with the body of the slurry pipe, slurry spout is angle adjustable
Flat burner structure.
Further, the reaction tube and cooling tube, cooling tube are sprayed with gas ammonia with phosphoric acid distributor pipe and phosphoric acid distributor pipe
Connected using adpting flange between pipe, and the adpting flange adopts lap joint flange.
Compared with prior art, the utility model has the advantage of：This utility model simple structure, it is easy to use, pass through
The structure designs such as cooling tube, it is ensured that the heat produced by course of reaction sheds, it is ensured that slip is not oven-dried, it is to avoid material
Slurry spout blocking；Simultaneously can react fully in use is carried out, and is easy to quick regulation operation operating mode, prevent fouling and
Blocking, ensures to stablize and persistently gives birth to.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of the highly effective reaction kettle for features of DAP production described in the utility model.
Fig. 2 is the structural representation that the highly effective reaction kettle for features of DAP production described in the utility model connects water-cooling system
Figure.
Description of reference numerals：1st, gas ammonia jet pipe, 2, adpting flange, 3, phosphoric acid distributor pipe, 4, phosphoric acid feed pipe, 5, reaction
Pipe, 6, cooling tube, 7, chuck, 8, spiral cooling tube, 9, slurry nozzle, 10, end cap, 11, water cooling pond, 12, circulating pump.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to make to protection domain of the present utility model
Define.
Refering to shown in Fig. 1 and Fig. 2, this utility model provides a kind of highly effective reaction kettle for features of DAP production, including
Slurry pipe, reaction tube 5 and phosphoric acid distributor pipe 3.
This utility model also includes a cooling tube 6, chuck 7, spiral cooling tube 8 and water-cooling system, the slurry pipe, cooling
Pipe 6, reaction tube 5 and phosphoric acid distributor pipe 3 are to be linked in sequence, the slurry pipe side connection end cap 10, and opposite side and cooling
6 side of pipe connects, and 6 opposite side of the cooling tube is connected with reaction tube 5, and the internal diameter of the reaction tube 5 is two stage structures, and which is by slurry
Expects pipe be a straight tube structure, and lean on 3 side of phosphoric acid distributor pipe to gradually taper up for an internal diameter, tube wall it is gradually thickening and be in consecutive variations
Reducing tubular construction；And the phosphoric acid distributor pipe 3 is a three-way pipe structure, coupled reaction pipe 5 and a gas are distinguished in its both sides
Ammonia jet pipe 1, is additionally provided with phosphoric acid feed pipe 4 by 3 side of phosphoric acid distributor pipe, and the chuck 7 is arranged on the cooling tube 6
Outside, the spiral cooling tube 8 are arranged between chuck 7 and cooling tube 6, and the water-cooling system is also connected with spiral cooling tube 8.
Specifically, the water-cooling system includes water inlet pipe, outlet pipe, water cooling pond 11 and circulating pump 12, the water cooling pond 11
One end is connected with the import of spiral cooling tube 8 by water inlet pipe, and its other end is by outlet pipe and the water side of spiral cooling tube 8
Connection.Circulating cooling function is capable of achieving by starting circulating pump 12.
The cooling tube 6 preferably adopts aluminum material, is conducive to the conduction of heat.
The external diameter of the gas ammonia jet pipe 1 is less than the internal diameter at the internal diameter minimum position of reaction tube 5.
Some slurry spouts 9, flat spray of the slurry spout 9 for angle adjustable are additionally provided with the body of the slurry pipe
Mouth structure.
The reaction tube 5 and cooling tube 6, cooling tube 6 and phosphoric acid distributor pipe 3 and phosphoric acid distributor pipe 3 and gas ammonia jet pipe it
Between using adpting flange connect, and the adpting flange adopt lap joint flange.
During use, gas ammonia sprays into phosphoric acid distributor pipe 3 by the nozzle at high speeds of gas ammonia jet pipe 1, and in phosphoric acid distributor pipe 3 with
The phosphoric acid mixing that phosphoric acid feed pipe 4 is sent into, is then fed into, in reaction tube 5, after the completion of reaction, carrying out slip by cooling tube 6
Cooling, you can the slurry nozzle 9 on slurry pipe discharges.
In this course of work, by the feeding speed control mixing journey at the gas ammonia jet pipe 1 and phosphoric acid feed pipe 4
Degree, contact area and response speed, it is ensured that both made material mix homogeneously, and do not made reaction excessively violent, and in reaction tube 5, made
Gas, liquid, solid mutually progressively mix abundant, realize that reaction is uniform, steady, gentle, sufficiently carry out, form high-quality atomization situation
Good slip.And control feeding amount at gas ammonia jet pipe 1 and phosphoric acid feed pipe 4 and can also ensure that phosphoric acid and ammonia are fully mixed,
Even if the ammonia that can be sparged into has a small amount of unfinished reaction also can be absorbed in air bubble buoyancy, largely avoid on reaction tube 5
Slip on portion's wall continues ammonification, fouling and blocking.And by cooling tube 6, chuck 7, spiral cooling tube 8 and water-cooling system etc.
Structure design, it is ensured that the heat produced by course of reaction sheds, it is ensured that slip is not oven-dried, it is to avoid slurry nozzle is blocked up
Plug.
Although being described in conjunction with the accompanying embodiment of the present utility model, patent owner can be wanted in appended right
Various modifications or modification are made within the scope of asking, as long as less than the protection model described by claim of the present utility model
Enclose, all should be within protection domain of the present utility model.
Claims (5)
1. a kind of highly effective reaction kettle for features of DAP production, including slurry pipe, reaction tube and phosphoric acid distributor pipe, its feature
It is：Also include a cooling tube, chuck, spiral cooling tube and water-cooling system, the slurry pipe, cooling tube, reaction tube and phosphorus
To be linked in sequence, the slurry pipe side connects end cap to sour distributor pipe, and opposite side is connected with cooling tube side, the cooling tube
Opposite side is connected with reaction tube, and the internal diameter of the reaction tube is two stage structures, and it is a straight tube structure which leans on slurry pipe, and leans on phosphoric acid
Distributor pipe side is gradually tapered up for an internal diameter, tube wall is gradually thickening and be in continually varying reducing tubular construction；And the phosphoric acid point
Stringing is a three-way pipe structure, and coupled reaction pipe and a gas ammonia jet pipe are distinguished in its both sides, by phosphoric acid distribution tube side
Be additionally provided with phosphoric acid feed pipe, the chuck is arranged on the outside of the cooling tube, the spiral cooling tube be arranged on chuck with
Between cooling tube, the water-cooling system is also connected with spiral cooling tube.
2. the highly effective reaction kettle for features of DAP production according to claim 1, it is characterised in that：The water-cooling system
Including water inlet pipe, outlet pipe, water cooling pond and circulating pump, import of the described water cooling pond one end by water inlet pipe with spiral cooling tube connects
Connect, its other end is connected with the water side of spiral cooling tube by outlet pipe.
3. the highly effective reaction kettle for features of DAP production according to claim 1, it is characterised in that：The gas ammonia jet pipe
External diameter less than reaction tube internal diameter minimum position at internal diameter.
4. the highly effective reaction kettle for features of DAP production according to claim 1, it is characterised in that：The slurry pipe
Some slurry spouts, flat burner structure of the slurry spout for angle adjustable are additionally provided with body.
5. the highly effective reaction kettle for features of DAP production according to claim 1, it is characterised in that：The reaction tube with
Cooling tube, is connected using adpting flange between cooling tube and phosphoric acid distributor pipe and phosphoric acid distributor pipe and gas ammonia jet pipe, and institute
State adpting flange and adopt lap joint flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010992.7U CN206108901U (en) | 2016-08-30 | 2016-08-30 | A highly efficient reaction cauldron for diammonium phosphate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010992.7U CN206108901U (en) | 2016-08-30 | 2016-08-30 | A highly efficient reaction cauldron for diammonium phosphate production |
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| CN206108901U true CN206108901U (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621010992.7U Active CN206108901U (en) | 2016-08-30 | 2016-08-30 | A highly efficient reaction cauldron for diammonium phosphate production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473193A (en) * | 2017-09-12 | 2017-12-15 | 甘肃瓮福化工有限责任公司 | A kind of method of system and production Diammonium phosphate (DAP) from heated drying production Diammonium phosphate (DAP) |
| CN113560051A (en) * | 2021-08-10 | 2021-10-29 | 扬州瑞阳化工有限责任公司 | Phosphorus spray gun for phosphorus supply of yellow phosphorus combustion furnace |
-
2016
- 2016-08-30 CN CN201621010992.7U patent/CN206108901U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473193A (en) * | 2017-09-12 | 2017-12-15 | 甘肃瓮福化工有限责任公司 | A kind of method of system and production Diammonium phosphate (DAP) from heated drying production Diammonium phosphate (DAP) |
| CN107473193B (en) * | 2017-09-12 | 2020-12-15 | 甘肃瓮福化工有限责任公司 | System for producing diammonium phosphate by self-heating drying and method for producing diammonium phosphate |
| CN113560051A (en) * | 2021-08-10 | 2021-10-29 | 扬州瑞阳化工有限责任公司 | Phosphorus spray gun for phosphorus supply of yellow phosphorus combustion furnace |
| CN113560051B (en) * | 2021-08-10 | 2022-08-05 | 扬州瑞阳化工有限责任公司 | Phosphorus spray gun for phosphorus supply of yellow phosphorus combustion furnace |
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