CN103694143B - A kind of phosphoric acid by wet process produces the device of urea phosphate continuously - Google Patents
A kind of phosphoric acid by wet process produces the device of urea phosphate continuously Download PDFInfo
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- CN103694143B CN103694143B CN201310726346.5A CN201310726346A CN103694143B CN 103694143 B CN103694143 B CN 103694143B CN 201310726346 A CN201310726346 A CN 201310726346A CN 103694143 B CN103694143 B CN 103694143B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The invention discloses a kind of phosphoric acid by wet process and produce the device of urea phosphate continuously, belong to chemical products production technical field, including phosphoric acid by wet process storage tank, phosphoric acid is for acid pump, centrifuge, synthesis groove, raw material cabin, shurry pump, equipment of crystallisation by cooling, circulating water cooling system, magma dashpot, finished product centrifuge, mother liquor tank and drying machine, the present invention realizes continuous discharge by equipment of crystallisation by cooling, raising automaticity and production capacity are reached, reduce operator, reduce labor intensity, thus improve the effect of production efficiency, circulating water cooling system is used to carry out cooling down, heat exchange amount is big, good cooling results, working environment is greatly improved, also reduce the cost processing cooling water.
Description
Technical field
The invention belongs to chemical products production technical field, relate to a kind of production equipment, specifically
Relate to a kind of phosphoric acid by wet process and produce the device of urea phosphate continuously.
Background technology
Urea phosphate contains nitrogen, two kinds of nutrients of phosphorus, is the compound nitrogen phosphate fertilizer of high concentration, it is possible to
As combustion adjuvant, metal conditioner, Nutrious fermented dose, abluent and purifying phosphoric acid with helping
Agent, additionally, be commonly used for the feed additive of ruminant.The synthesis technique of urea phosphate is by used
Phosphate raw material is mainly thermal phosphoric acid method, at present to using thermal phosphoric acid or wet process phosphoric acid for preparing phosphoric acid
The academic report that the synthesis condition of urea carries out studying is more, but its main method is for coming from the former Soviet Union
Secondary crystallization process, carbamide, polyphosphoric acid technique and come from the TVA technique etc. of the U.S..Pass through
The development of recent decades, as most basic technique thermal phosphoric acid and urea reaction, in work
Industry metaplasia achieves a lot of invaluable experience on producing, but, consult the phosphorous chemical industry periodical after nineteen ninety
Data, almost without the report of its industrialization technology.Because its technological process is simple, therefore mostly
Number enterprise is all oneself to design and develop, and is formed without relatively fixing and set of production equipment, in reality
In the production process of border, many practical problems consider deficiency, cause each plant running situation the most right
The unimpeded of whole technological process impacts.The process units of current urea phosphate belongs to interval mostly
Property operation, production process exists some defects, in process of production during crystallisation by cooling use change
Hot device direct heat transfer cools down, and the heat exchange area of heat exchanger is limited, and the cool time of needs is long, cold
But water consumption is big, it is difficult to process；Due to length cool time and intermittent operation, cause
Production capacity is little, and production capacity is difficult to improve；The automaticity of device is low, the operator of needs
Many, labor intensity is big, causes human resources to waste, and cost of labor increases；Crystallisation by cooling fills
Putting employing open type operation, quantity of steam is big, and working environment is poor.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of phosphoric acid by wet process and produce urea phosphate continuously
Device, thus reach continuous high-efficient produce effect.
The present invention is achieved by following technical solution.
A kind of phosphoric acid by wet process produces the device of urea phosphate continuously, including phosphoric acid by wet process storage tank, phosphoric acid
For acid pump, centrifuge, synthesis groove, raw material cabin, shurry pump, equipment of crystallisation by cooling, recirculated water
Cooling system, magma dashpot, finished product centrifuge, mother liquor tank and drying machine, described wet method phosphorus
Outlet and the phosphoric acid of acid storage tank for the inlet communication of acid pump, described phosphoric acid for acid delivery side of pump with from
The material inlet connection of scheming, the liquid phase discharging opening of described centrifuge and the liquid phase feeding synthesizing groove
Mouth connection, the solid phase charging aperture at described synthesis groove top is by feed hopper and measuring belt and raw material
Storehouse connects, the inlet communication of discharging opening and the shurry pump of synthesis trench bottom, slip delivery side of pump with
Equipment of crystallisation by cooling connects, and described equipment of crystallisation by cooling connects with circulating water cooling system, described
The charging aperture of finished product centrifuge connects with the discharging opening of magma dashpot hypomere, and described magma buffers
Groove connects with equipment of crystallisation by cooling, by conveying belt with dry at the solid-phase outlet of finished product centrifuge
The charging aperture of dry machine is connected, and the liquid-phase outlet of finished product centrifuge connects with the charging aperture of mother liquor tank
Logical.
Described equipment of crystallisation by cooling includes circulating pump, heat exchanger, flash chamber and oslo crystallizer,
The outlet conduit of the charging aperture binder stock pump of described circulating pump and oslo crystallizer epimere
Liquid-phase outlet, the inlet communication of circulation delivery side of pump and heat exchanger, the outlet of described heat exchanger
With the circulation fluid inlet communication on flash chamber, the tremie pipe bottom described flash chamber is tied with Olso
Brilliant device connection, and insert the bottom of oslo crystallizer.
Described circulating water cooling system includes barometric condenser, cooling tower, circulating water chennel and circulation
Water pump, the gas phase import of described barometric condenser hypomere connects with the gaseous phase outlet of flash chamber, the end
The liquid-phase outlet pipe in portion connects with the fluid inlet at circulating water chennel top, described circulating water chennel hypomere
Outlet connect with the water inlet of water circulating pump, on described recirculated water delivery side of pump and cooling tower
Section entrance connection, the outlet of cooling tower hypomere connects with the water inlet of barometric condenser epimere.
Described oslo crystallizer hypomere and bottom have magma outlet, outlet and magma dashpot
The charging aperture connection at top.
The invention has the beneficial effects as follows:
A kind of phosphoric acid by wet process of the present invention produces the device of urea phosphate continuously, is tied by cooling
Brilliant device continuous discharge, has reached raising automaticity and production capacity, reduces operator,
Reducing labor intensity, thus improve the effect of production efficiency, meanwhile, the technical program uses and follows
Ring water cooling system carries out vacuum cool-down cooling, and heat exchange amount is big, good cooling results, working environment
It is greatly improved, decreases cooling water amount and shorten cool time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1-phosphoric acid by wet process storage tank, 2-phosphoric acid is for acid pump, 3-centrifuge, and 4-synthesizes groove,
5-raw material cabin, 6-shurry pump, 7-equipment of crystallisation by cooling, 71-circulating pump, 72 heat exchangers, 73-
Flash chamber, 74-oslo crystallizer, 8-circulating water cooling system, 81-barometric condenser, 82-
Cooling tower, 83-circulating water chennel, 84-water circulating pump, 9-magma dashpot, 10-finished product is centrifuged
Machine, 11-mother liquor tank, 12-drying machine.
Detailed description of the invention
Further describe technical scheme below in conjunction with the accompanying drawings, but claimed scope
It is not limited to described.
As it is shown in figure 1, a kind of phosphoric acid by wet process of the present invention produces the device of urea phosphate continuously,
Including phosphoric acid by wet process storage tank 1, phosphoric acid for acid pump 2, centrifuge 3, synthesis groove 4, raw material cabin 5,
Shurry pump 6, equipment of crystallisation by cooling 7, circulating water cooling system 8, magma dashpot 9, finished product from
Scheming 10, mother liquor tank 11 and drying machine 12, the outlet of described phosphoric acid by wet process storage tank 1 supplies with phosphoric acid
The inlet communication of acid pump 2, described phosphoric acid connects with the material inlet of centrifuge 3 for the outlet of acid pump 2
Logical, the liquid phase discharging opening of described centrifuge 3 connects with the liquid phase feeding mouth of synthesis groove 4, described conjunction
The solid phase charging aperture at grooving 4 top is connected with raw material cabin 5 with measuring belt by feed hopper, synthesis
Discharging opening bottom groove 4 and the inlet communication of shurry pump 6, the outlet of shurry pump 6 and crystallisation by cooling
Device 7 connects, and described equipment of crystallisation by cooling 7 connects with circulating water cooling system 8, described finished product
The charging aperture of centrifuge 10 connects with the discharging opening of magma dashpot 9 hypomere, and described magma buffers
Groove 9 connects with equipment of crystallisation by cooling 7, by conveying belt at the solid-phase outlet of finished product centrifuge 10
It is connected with the charging aperture of drying machine 12, the liquid-phase outlet of finished product centrifuge 10 and mother liquor tank 11
Charging aperture connection.
Described equipment of crystallisation by cooling 7 includes circulating pump 71, heat exchanger 72, flash chamber 73 and Ao Si
Land crystallizer 74, the outlet conduit of the charging aperture binder stock pump 6 of described circulating pump 71 and Austria
The liquid-phase outlet of this land crystallizer 74 epimere, the outlet of circulating pump 71 connects with the import of heat exchanger 72
Logical, the outlet of described heat exchanger 72 and the circulation fluid inlet communication on flash chamber 73, described flash distillation
Tremie pipe bottom room 73 connects with oslo crystallizer 74, and inserts oslo crystallizer 74
Bottom.
Described circulating water cooling system 8 includes barometric condenser 81, cooling tower 82, circulating water chennel
83 and water circulating pump 84, the gas phase import of described barometric condenser 81 hypomere and the gas of flash chamber 73
Phase outlet, the liquid-phase outlet pipe of bottom connects with the fluid inlet at circulating water chennel 83 top,
The described outlet of circulating water chennel 83 hypomere connects with the water inlet of water circulating pump 84, described circulation
The outlet of water pump 84 connects with cooling tower 82 epimere entrance, and the outlet of cooling tower 82 hypomere is with big
The water inlet connection of gas condenser 81 epimere.
Described oslo crystallizer 74 hypomere and bottom have magma outlet, and outlet is delayed with magma
The charging aperture connection at jet-bedding 9 top.
Start phosphoric acid and supply acid pump 2, the phosphoric acid in phosphoric acid by wet process storage tank 1 is sent in centrifuge 3,
After being separated by solid impurity in phosphoric acid, phosphoric acid is entered by the liquid phase discharging opening bottom centrifuge 3
In synthesis groove 4, the carbamide of metering is synthesized groove 4 from the addition of raw material cabin 5, and in synthesis
Groove 4 is sufficiently stirred for dissolve, after mix homogeneously, by shurry pump 6 by mixing in synthesis groove 4
Closing slip and send into the inlet pipeline of circulating pump 71, slip passes through circulating pump 71 routed through heat exchanger
72 are transported in flash chamber 73, under the effect of circulating water cooling system 8, at flash chamber 73
Interior slip separates out urea phosphate crystal, and the tremie pipe bottom flash chamber 73 enters Olso knot
The bottom of brilliant device 74, crystal magma outlet bottom oslo crystallizer 74 enters magma and delays
In jet-bedding 9, finally entering centrifugation in finished product centrifuge 10, solid phase is brought into by conveying
Packing to obtain urea phosphate finished product in entering drying machine 12 after drying, liquid phase enters in mother liquor tank 11,
After deliver to compound fertilizer facility produce compound fertilizer.
Claims (1)
1. phosphoric acid by wet process produces a device for urea phosphate continuously, including phosphoric acid by wet process storage tank (1),
Phosphoric acid for acid pump (2), centrifuge (3), synthesis groove (4), raw material cabin (5), shurry pump (6),
Equipment of crystallisation by cooling (7), circulating water cooling system (8), magma dashpot (9), finished product from
Scheming (10), mother liquor tank (11) and drying machine (12), it is characterised in that: described wet method phosphorus
The outlet of acid storage tank (1) supplies the inlet communication of acid pump (2) with phosphoric acid, and described phosphoric acid is for acid pump
(2) outlet connects with the material inlet of centrifuge (3), the liquid of described centrifuge (3)
Phase discharging opening connects with the liquid phase feeding mouth of synthesis groove (4), described synthesis groove (4) top
Solid phase charging aperture is connected with raw material cabin (5) with measuring belt by feed hopper, synthesis groove (4)
The discharging opening of bottom and the inlet communication of shurry pump (6), the outlet of shurry pump (6) is with cold
But crystallization apparatus (7) connection, described equipment of crystallisation by cooling (7) and circulating water cooling system (8)
Connection, the charging aperture of described finished product centrifuge (10) goes out with magma dashpot (9) hypomere
Material mouth connection, described magma dashpot (9) connects with equipment of crystallisation by cooling (7), finished product from
It is connected with the charging aperture of drying machine (12) by conveying belt at the solid-phase outlet of scheming (10)
Connecing, the liquid-phase outlet of finished product centrifuge (10) connects with the charging aperture of mother liquor tank (11)；
Described equipment of crystallisation by cooling (7) includes circulating pump (71), heat exchanger (72), flash distillation
Room (73) and oslo crystallizer (74), the charging aperture binder of described circulating pump (71)
The outlet conduit of stock pump (6) and the liquid-phase outlet of oslo crystallizer (74) epimere, follow
The outlet of ring pump (71) and the inlet communication of heat exchanger (72), described heat exchanger (72)
Outlet and the circulation fluid inlet communication on flash chamber (73), described flash chamber (73) bottom
Tremie pipe connects with oslo crystallizer (74), and inserts under oslo crystallizer (74)
Portion, oslo crystallizer (74) hypomere and bottom have magma outlet, outlet and magma buffering
The charging aperture connection at groove (9) top；
Described circulating water cooling system (8) include barometric condenser (81), cooling tower (82),
Circulating water chennel (83) and water circulating pump (84), the gas of described barometric condenser (81) hypomere
Phase import connects with the gaseous phase outlet of flash chamber (73), the liquid-phase outlet pipe of bottom and recirculated water
Groove (83) top fluid inlet connection, the outlet of described circulating water chennel (83) hypomere with
The water inlet connection of water circulating pump (84), the outlet of described water circulating pump (84) and cooling tower
(82) epimere entrance connection, the outlet of cooling tower (82) hypomere and barometric condenser (81)
The water inlet connection of epimere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726346.5A CN103694143B (en) | 2013-12-25 | 2013-12-25 | A kind of phosphoric acid by wet process produces the device of urea phosphate continuously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726346.5A CN103694143B (en) | 2013-12-25 | 2013-12-25 | A kind of phosphoric acid by wet process produces the device of urea phosphate continuously |
Publications (2)
| Publication Number | Publication Date |
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| CN103694143A CN103694143A (en) | 2014-04-02 |
| CN103694143B true CN103694143B (en) | 2016-08-17 |
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| CN201310726346.5A Expired - Fee Related CN103694143B (en) | 2013-12-25 | 2013-12-25 | A kind of phosphoric acid by wet process produces the device of urea phosphate continuously |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715490A (en) * | 2017-09-19 | 2018-02-23 | 云南云天化股份有限公司 | A kind of liquid foam separation method suitable for phosphoric acid by wet process low level flash cooled system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734064B (en) * | 2016-11-29 | 2023-08-04 | 贵阳开磷化肥有限公司 | Phosphogypsum harmless treatment device and phosphogypsum harmless treatment method for wet-process phosphoric acid output |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1440056A (en) * | 1921-06-28 | 1922-12-26 | Clarkson Fuller | Method of making urea phosphate |
| GB1149924A (en) * | 1966-11-02 | 1969-04-23 | Power Gas Ltd | Improvements in or relating to the production of urea phosphate |
| GB1208632A (en) * | 1968-03-11 | 1970-10-14 | Power Gas Ltd | Improvements in or relating to the production of urea phosphate |
| CN101318914B (en) * | 2008-07-23 | 2011-10-05 | 瓮福（集团）有限责任公司 | Method for preparing urea phosphoric acid with wet-process phosphoric acid |
| CN102040544A (en) * | 2010-11-15 | 2011-05-04 | 中化重庆涪陵化工有限公司 | Method for continuously producing feed grade urea phosphate by using wet purified phosphoric acid |
| CN102391155B (en) * | 2011-10-25 | 2014-02-26 | 贵州川恒化工有限责任公司 | Urea phosphate production method |
-
2013
- 2013-12-25 CN CN201310726346.5A patent/CN103694143B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715490A (en) * | 2017-09-19 | 2018-02-23 | 云南云天化股份有限公司 | A kind of liquid foam separation method suitable for phosphoric acid by wet process low level flash cooled system |
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Address after: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Applicant after: GUIZHOU KAILIN GROUP Co.,Ltd. Address before: 550002 Guizhou city in Guiyang Province, the Haitian Road No. 203 building 12 layer Applicant before: Guizhou Kailin (Group) Co.,Ltd. |
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Granted publication date: 20160817 Termination date: 20211225 |