CN105771305A - Buffer crystallization equipment for producing adblue - Google Patents
Buffer crystallization equipment for producing adblue Download PDFInfo
- Publication number
- CN105771305A CN105771305A CN201610307294.1A CN201610307294A CN105771305A CN 105771305 A CN105771305 A CN 105771305A CN 201610307294 A CN201610307294 A CN 201610307294A CN 105771305 A CN105771305 A CN 105771305A
- Authority
- CN
- China
- Prior art keywords
- crystallization kettle
- crystallization
- pump
- urea
- cooling medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 119
- 230000008025 crystallization Effects 0.000 title claims abstract description 113
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 59
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 99
- 239000004202 carbamide Substances 0.000 claims description 52
- 239000002826 coolant Substances 0.000 claims description 34
- 210000002700 urine Anatomy 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012267 brine Substances 0.000 claims description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 47
- 239000000243 solution Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 17
- 239000012295 chemical reaction liquid Substances 0.000 description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 11
- 150000003672 ureas Chemical class 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses buffer crystallization equipment for producing adblue. The equipment comprises an adblue liquid synthesis tank, a conveying pump, a crystallization kettle, a vacuum pump, a buffer tank and a circulation pump, wherein a liquid inlet is formed in the upper side of the crystallization kettle; a liquid outlet and a product outlet are formed in the bottom of the crystallization kettle; the buffer tank, the vacuum pump and the crystallization kettle are sequentially connected, so that vacuum is formed in the crystallization kettle; an input opening of the conveying pump is connected with the adblue liquid synthesis tank; an output opening of the conveying pump is connected with the liquid inlet of the crystallization kettle; an input opening of the circulation pump is connected with the liquid outlet of the crystallization kettle; an output opening of the circulation pump is connected with the adblue liquid synthesis tank; the crystallization kettle is also provided with a separation plate. The plate crystallization equipment has the advantages that adblue synthesis liquid obtained through reaction in the adblue liquid synthesis tank is directly used for crystallization in the vacuum environment; the technical flow process is simplified; the production cost is reduced; the mass high-purity adblue can be continuously produced; the energy is saved; the environment is protected; good economic benefits and social benefits are realized.
Description
Technical field
The invention belongs to production urea for vehicle technical field, relate to a kind of baffle crystallization equipment producing urea for vehicle.
Background technology
Regulation according to national environmental protection department, from 1 day July in 2013, the heavy-duty diesel vehicle of sale was intended to reach state IV discharge standard, compared with state Ⅲ emission standard, the state IV of heavy-duty diesel oil automobile discharges discharged nitrous oxides and reduces about 30%, and particulate matter (PM) discharge reduces more than 80%.In order to reduce exhaust gas from diesel vehicle discharge in nitrogen oxides and particulate matter.At present, car manufactures commonly used SCR (SCR) the technical finesse exhaust gas from diesel vehicle of the country such as American-European, make up to the discharge standard that Europe V, Europe VI are even higher.
Exhaust gas from diesel vehicle treatment fluid is to cooperate with SCR technology, by the reducing agent that the conversion of nitrogen oxides in motor exhaust is harmless nitrogen and water, the primary raw material of exhaust gas from diesel vehicle treatment fluid is urea for vehicle and water, urea for vehicle is not common agriculture carbamide or industrial urea, neither chemical analysis reagent, but one has certain added value, can the specialty chemicals of large-scale industrial production.Urea for vehicle operation principle is that urea for vehicle is added to SCR system, and in hot environment (temperature is higher than 300 DEG C), carbamide resolves into ammonia, adds the effect of catalyst, and the nitrogen oxides in tail gas can react rapidly generation nitrogen and water with ammonia.The delivery temperature of diesel engine is generally 300-500 DEG C, meets the heat required for reduction of nitrogen oxide.
At present, the main flow of urea production is that ammonia and carbon dioxide react generation urea synthesis reaction liquid under certain condition, and urea synthesis reaction liquid obtains solid urea then through processes such as flush distillation, double evaporation-cooling, pelletizes.But, the purity requirement of urea for vehicle is significantly high, commercially available industry or agricultural urea granules are higher due to magazine content such as biurets, can not be directly used in preparation urea for vehicle solution, it is necessary to make urea synthesis reaction liquid by repeatedly crystallization with impurity contents such as the biurets that reduces in carbamide.
Summary of the invention
The invention provides a kind of equipment simple, floor space is little, improves the baffle crystallization equipment of the production urea for vehicle of the purification efficiency of carbamide.
In order to realize foregoing invention purpose, technical scheme is as follows:
A kind of baffle crystallization equipment producing urea for vehicle, including urine synthesis tank, delivery pump, crystallization kettle, vacuum pump, surge tank and circulating pump；Described crystallization kettle is arranged over inlet, and bottom is provided with liquid outlet and products export；Described surge tank, vacuum pump and crystallization kettle are sequentially connected with, and make to be formed in crystallization kettle vacuum；The input port of described delivery pump is connected with urine synthesis tank, and the delivery outlet of delivery pump is connected with the inlet of crystallization kettle；The input port of described circulating pump is connected with the liquid outlet of crystallization kettle, and the delivery outlet of circulating pump is connected with urine synthesis tank；Described crystallization kettle is additionally provided with dividing plate.
As further improvement, above-described dividing plate is longitudinally distributed in crystallization kettle, and the inside of crystallization kettle is divided into multiple little lattice；It is equipped with cooling coil in each little lattice；Described crystallization kettle is additionally provided with cooling medium entrance and cooling medium outlet；By placed in series between described cooling coil, and it is connected with the cooling medium entrance on crystallization kettle and cooling medium outlet.
As further improvement, in above-described crystallization kettle, it is additionally provided with spray thrower；Described spray thrower includes shower and spray head；Described shower is connected with circulating pump by pipeline；Described spray head is uniform to be arranged on shower；Described shower is arranged on the top of dividing plate.
As further improvement, in above-described described cooling coil, pass into cooling medium；Described cooling medium is cool brine or cold water.
As further improvement, above-described crystallization kettle be arranged over feed tube and rotary nozzle；One end of described feed tube is connected with the inlet of crystallization kettle, and the other end is connected with rotary nozzle.
During use, the urea synthesis solution being obtained by reacting in urine synthesis tank enters in the crystallization kettle being in vacuum state by delivery pump, crystallization kettle adopt dividing plate crystallization kettle is divided into multiple little lattice, and it is provided with, in each little lattice, the cooling coil being connected with cooling medium, urea synthesis solution is made to carry out crystallisation by cooling purification on dividing plate, open the valve of circulating pump and urine synthesis tank UNICOM, unsaturated urea reaction liquid is delivered in urine synthesis tank and again reacts；After so circulation is extremely fully obtained by reacting saturated urea reaction liquid, close the valve of circulating pump and urine synthesis tank UNICOM, open the valve being connected with the shower in crystallization kettle, with the saturated urea reaction liquid product spray washing that crystallization on dividing plate is obtained, improve the purity of product.
Compared to prior art, the present invention has the advantage that and has the beneficial effect that:
1, the present invention directly adopts the urea synthesis solution being obtained by reacting in urine synthesis tank to carry out crystallization, make use of the feature that the temperature of urea synthesis solution is high, it is not necessary to additional heat, decreases the generation of biuret；And in vacuum environment, the high-temperature water meeting rapid vaporization in urea synthesis solution, therefore have part water and be evaporated from urea synthesis solution, improve the concentration of urea synthesis solution, improve the productivity ratio of product, it is ensured that the quality of product.
2, the crystallization kettle of the present invention adopts dividing plate as crystalline carrier, the cold air that urea synthesis solution produces with the cooling coil in little lattice under vacuum is made to carry out heat exchange, make urea synthesis solution crystallisation by cooling in separator face, add unit crystallization area, improve production efficiency；Meanwhile, crystalline solid is suspended in separator face, when crystalline substance, liquid two-phase laminated flow, thoroughly discharges the liquid that impurity content is high, improves purification rate.
3, the crystallization kettle in the present invention is provided with spray thrower, the reactant liquor that crystal column surface and crystallization kettle are remaining can be carried out spray washing, decrease impurity content, improve product quality.
4, the present invention is provided with circulating pump, again can be delivered in urea synthesis tank by unsaturated urea synthesis solution and carry out secondary response again, save raw material, reduce production cost.
5, the rotary nozzle that the present invention is provided with, fully can be scattered in urea synthesis solution in crystallization kettle and react, and response area is wide, improves the homogeneity of product quality, improves crystalline rate simultaneously.
6, present configuration advantages of simple, simplifies technological process, reduces production cost, can produce high-volume, highly purified urea for vehicle, energy-conserving and environment-protective continuously, have good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Accompanying drawing identifies:
1-urine synthesis tank, 2-delivery pump, 3-crystallization kettle, 4-feed tube, 5-rotary nozzle, 6-surge tank, 7-vacuum pump-, 8-spray head, 9-dividing plate, 10-circulating pump, 11-shower, 12-cooling coil.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1:
A kind of baffle crystallization equipment producing urea for vehicle, including urine synthesis tank 1, delivery pump 2, crystallization kettle 3, vacuum pump 7, surge tank 6 and circulating pump 10.Crystallization kettle 3 is arranged over inlet, and bottom is provided with liquid outlet and products export.Described surge tank 6, vacuum pump 7 are sequentially connected with crystallization kettle 3, make to be formed in crystallization kettle 3 vacuum.The input port of described delivery pump 2 is connected with urine synthesis tank 1, and the delivery outlet of delivery pump 2 is connected with the inlet of crystallization kettle 3.The input port of described circulating pump 10 is connected with the liquid outlet of crystallization kettle 3, and the delivery outlet of circulating pump 10 is connected with urine synthesis tank 1；Described crystallization kettle 3 is additionally provided with dividing plate 9.
Described dividing plate 9 is longitudinally distributed in crystallization kettle 3, and the inside of crystallization kettle 3 is divided into multiple little lattice；It is equipped with cooling coil 12 in each little lattice.Described crystallization kettle 3 is additionally provided with cooling medium entrance and cooling medium outlet, by placed in series between cooling coil 12, and is connected with the cooling medium entrance on crystallization kettle 3 and cooling medium outlet.Cooling medium is passed in described cooling coil 12；Described cooling medium is cool brine.
During use, the urea synthesis solution being obtained by reacting in urine synthesis tank 1 enters in the crystallization kettle 3 being in vacuum state by delivery pump 2, crystallization kettle 3 adopt dividing plate 9 crystallization kettle 3 is divided into multiple little lattice, and in each little lattice, it is provided with the cooling coil 12 being connected with cooling medium, urea synthesis solution is made to carry out crystallisation by cooling purification on dividing plate 12, open the valve of circulating pump 10 and urine synthesis tank 1 UNICOM, unsaturated urea reaction liquid is delivered in urine synthesis tank 1 and again reacts, obtain highly purified urea product.
Embodiment 2:
A kind of baffle crystallization equipment producing urea for vehicle, including urine synthesis tank 1, delivery pump 2, crystallization kettle 3, vacuum pump 7, surge tank 6 and circulating pump 10.Crystallization kettle 3 is arranged over inlet, and bottom is provided with liquid outlet and products export.Described surge tank 6, vacuum pump 7 are sequentially connected with crystallization kettle 3, make to be formed in crystallization kettle 3 vacuum.The input port of described delivery pump 2 is connected with urine synthesis tank 1, and the delivery outlet of delivery pump 2 is connected with the inlet of crystallization kettle 3.The input port of described circulating pump 10 is connected with the liquid outlet of crystallization kettle 3, and the delivery outlet of circulating pump 10 is connected with urine synthesis tank 1；Described crystallization kettle 3 is additionally provided with dividing plate 9.
Described dividing plate 9 is longitudinally distributed in crystallization kettle 3, and the inside of crystallization kettle 3 is divided into multiple little lattice；It is equipped with cooling coil 12 in each little lattice.Described crystallization kettle 3 is additionally provided with cooling medium entrance and cooling medium outlet, by placed in series between cooling coil 12, and is connected with the cooling medium entrance on crystallization kettle 3 and cooling medium outlet.Cooling medium is passed in described cooling coil 12；Described cooling medium is cold water.It is additionally provided with spray thrower in described crystallization kettle 3；Spray thrower includes shower 11 and spray head 8；Described shower 11 is connected with circulating pump 10 by pipeline；Described spray head 8 is uniform to be arranged on shower 11；Described shower 11 is arranged on the top of dividing plate 9.
During use, the urea synthesis solution being obtained by reacting in urine synthesis tank 1 enters in the crystallization kettle 3 being in vacuum state by delivery pump 2, brilliant still 3 adopt dividing plate 9 that crystallization kettle 3 is divided into multiple little lattice, and in each little lattice, it is provided with the cooling coil 12 being connected with cooling medium, urea synthesis solution is made to carry out crystallisation by cooling purification on dividing plate 12, open the valve of circulating pump 10 and urine synthesis tank 1 UNICOM, unsaturated urea reaction liquid is delivered in urine synthesis tank 1 and again reacts, after so circulation is extremely fully obtained by reacting saturated urea reaction liquid, close the valve of circulating pump 10 and urine synthesis tank 1 UNICOM, open the valve being connected with the shower 11 in crystallization kettle 3, with the saturated urea reaction liquid product spray washing that crystallization on dividing plate 9 is obtained, obtain highly purified urea product.
Embodiment 3:
A kind of baffle crystallization equipment producing urea for vehicle, including urine synthesis tank 1, delivery pump 2, crystallization kettle 3, vacuum pump 7, surge tank 6 and circulating pump 10.Crystallization kettle 3 is arranged over inlet, and bottom is provided with liquid outlet and products export.Described surge tank 6, vacuum pump 7 are sequentially connected with crystallization kettle 3, make to be formed in crystallization kettle 3 vacuum.The input port of described delivery pump 2 is connected with urine synthesis tank 1, and the delivery outlet of delivery pump 2 is connected with the inlet of crystallization kettle 3.The input port of described circulating pump 10 is connected with the liquid outlet of crystallization kettle 3, and the delivery outlet of circulating pump 10 is connected with urine synthesis tank 1.Described crystallization kettle 3 be arranged over feed tube 4 and rotary nozzle 5；One end of described feed tube 4 is connected with the inlet of crystallization kettle 3, and the other end is connected with rotary nozzle 5, and urea synthesis solution can be fully scattered in crystallization kettle 3 and react by rotary nozzle 5, and response area is wide, improves the homogeneity of product quality.The bottom of described crystallization kettle 3 is inverted cone, it is simple to control the yield of product.
Described dividing plate 9 is longitudinally distributed in crystallization kettle 3, and the inside of crystallization kettle 3 is divided into multiple little lattice；It is equipped with cooling coil 12 in each little lattice.Described crystallization kettle 3 is additionally provided with cooling medium entrance and cooling medium outlet, by placed in series between cooling coil 12, and is connected with the cooling medium entrance on crystallization kettle 3 and cooling medium outlet.Cooling medium is passed in described cooling coil 12；Described cooling medium is cold water.It is additionally provided with spray thrower in described crystallization kettle 3；Spray thrower includes shower 11 and spray head 8；Described shower 11 is connected with circulating pump 10 by pipeline；Described spray head 8 is uniform to be arranged on shower 11；Described shower 11 is arranged on the top of dividing plate pipe 9.
During use, the urea synthesis solution being obtained by reacting in urine synthesis tank 1 enters in the crystallization kettle 3 being in vacuum state by delivery pump 2, brilliant still 3 adopt dividing plate 9 that crystallization kettle 3 is divided into multiple little lattice, and in each little lattice, it is provided with the cooling coil 12 being connected with cooling medium, urea synthesis solution is made to carry out crystallisation by cooling purification on dividing plate 12, open the valve of circulating pump 10 and urine synthesis tank 1 UNICOM, unsaturated urea reaction liquid is delivered in urine synthesis tank 1 and again reacts, after so circulation is extremely fully obtained by reacting saturated urea reaction liquid, close the valve of circulating pump 10 and urine synthesis tank 1 UNICOM, open the valve being connected with the shower 11 in crystallization kettle 3, with the saturated urea reaction liquid product spray washing that crystallization on dividing plate 9 is obtained, obtain highly purified urea product.
Claims (5)
1. the baffle crystallization equipment producing urea for vehicle, it is characterised in that: include urine synthesis tank (1), delivery pump (2), crystallization kettle (3), vacuum pump (7), surge tank (6) and circulating pump (10)；Described crystallization kettle (3) is arranged over inlet, and bottom is provided with liquid outlet and products export；Described surge tank (6), vacuum pump (7) are sequentially connected with crystallization kettle (3), make to be formed in crystallization kettle (3) vacuum；The input port of described delivery pump (2) is connected with urine synthesis tank (1), and the delivery outlet of delivery pump (2) is connected with the inlet of crystallization kettle (3)；The input port of described circulating pump (10) is connected with the liquid outlet of crystallization kettle (3), and the delivery outlet of circulating pump (10) is connected with urine synthesis tank (1)；Described crystallization kettle (3) is additionally provided with dividing plate (9).
2. the baffle crystallization equipment of production urea for vehicle according to claim 1, it is characterised in that: described dividing plate (9) is longitudinally distributed in crystallization kettle (3), and the inside of crystallization kettle (3) is divided into multiple little lattice；Cooling coil (12) it is equipped with in each little lattice；Described crystallization kettle (3) is additionally provided with cooling medium entrance and cooling medium outlet；By placed in series between described cooling coil (12), and it is connected with the cooling medium entrance on crystallization kettle (3) and cooling medium outlet.
3. the baffle crystallization equipment of production urea for vehicle according to claim 2, it is characterised in that: it is additionally provided with spray thrower in described crystallization kettle (3)；Described spray thrower includes shower (11) and spray head (8)；Described shower (11) is connected with circulating pump (10) by pipeline；Described spray head (8) is uniform to be arranged on shower (11)；Described shower (11) is arranged on the top of dividing plate (9).
4. the baffle crystallization equipment according to the arbitrary described production urea for vehicle of Claims 2 or 3, it is characterised in that: pass into cooling medium in described cooling coil (12)；Described cooling medium is cool brine or cold water.
5. the baffle crystallization equipment of production urea for vehicle according to claim 1, it is characterised in that: described crystallization kettle (3) be arranged over feed tube (4) and rotary nozzle (5)；One end of described feed tube (4) is connected with the inlet of crystallization kettle (3), and the other end is connected with rotary nozzle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307294.1A CN105771305B (en) | 2016-05-11 | 2016-05-11 | Produce the baffle crystallization equipment of urea for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307294.1A CN105771305B (en) | 2016-05-11 | 2016-05-11 | Produce the baffle crystallization equipment of urea for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105771305A true CN105771305A (en) | 2016-07-20 |
| CN105771305B CN105771305B (en) | 2018-10-02 |
Family
ID=56401230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307294.1A Active CN105771305B (en) | 2016-05-11 | 2016-05-11 | Produce the baffle crystallization equipment of urea for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771305B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169167A (en) * | 1994-11-02 | 1997-12-31 | 斯文森过程设备公司 | Improved crystallization apparatus and method |
| CN2748145Y (en) * | 2004-12-24 | 2005-12-28 | 河南省粮油机械工程有限公司 | Crystallizing tank |
| CN201168456Y (en) * | 2008-03-11 | 2008-12-24 | 张建臣 | Lipin low temperature crystallization jar |
| CN201524442U (en) * | 2009-10-10 | 2010-07-14 | 过志昌 | High-efficient scraping wall type hollow sheet bar cooling continuous crystallizer |
| US20110171105A1 (en) * | 2008-09-17 | 2011-07-14 | David Sevier | System and Process for Capturing, Concentrating, or Crystallizing a Target Compound from a Mixture |
| CN103801106A (en) * | 2012-11-02 | 2014-05-21 | 中国石油化工集团公司 | Sleeve type crystallizer |
| CN104557617A (en) * | 2013-10-10 | 2015-04-29 | 中国石油化工股份有限公司 | Diesel exhaust fluid production method |
| CN104740891A (en) * | 2015-04-16 | 2015-07-01 | 威海沁和实业有限公司 | Air cooling crystallizer for inner fin tubes |
| CN204815763U (en) * | 2015-06-16 | 2015-12-02 | 江阴市江中设备制造有限公司 | Evaporation crystallization integrated device |
| CN205042347U (en) * | 2015-08-18 | 2016-02-24 | 安阳化学工业集团有限责任公司 | Automobile -used urea solution's production system |
| CN205886277U (en) * | 2016-05-11 | 2017-01-18 | 南宁市夏阳化工科技有限责任公司 | Produce automobile -used ureal baffle crystallization equipment |
-
2016
- 2016-05-11 CN CN201610307294.1A patent/CN105771305B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169167A (en) * | 1994-11-02 | 1997-12-31 | 斯文森过程设备公司 | Improved crystallization apparatus and method |
| CN2748145Y (en) * | 2004-12-24 | 2005-12-28 | 河南省粮油机械工程有限公司 | Crystallizing tank |
| CN201168456Y (en) * | 2008-03-11 | 2008-12-24 | 张建臣 | Lipin low temperature crystallization jar |
| US20110171105A1 (en) * | 2008-09-17 | 2011-07-14 | David Sevier | System and Process for Capturing, Concentrating, or Crystallizing a Target Compound from a Mixture |
| CN201524442U (en) * | 2009-10-10 | 2010-07-14 | 过志昌 | High-efficient scraping wall type hollow sheet bar cooling continuous crystallizer |
| CN103801106A (en) * | 2012-11-02 | 2014-05-21 | 中国石油化工集团公司 | Sleeve type crystallizer |
| CN104557617A (en) * | 2013-10-10 | 2015-04-29 | 中国石油化工股份有限公司 | Diesel exhaust fluid production method |
| CN104740891A (en) * | 2015-04-16 | 2015-07-01 | 威海沁和实业有限公司 | Air cooling crystallizer for inner fin tubes |
| CN204815763U (en) * | 2015-06-16 | 2015-12-02 | 江阴市江中设备制造有限公司 | Evaporation crystallization integrated device |
| CN205042347U (en) * | 2015-08-18 | 2016-02-24 | 安阳化学工业集团有限责任公司 | Automobile -used urea solution's production system |
| CN205886277U (en) * | 2016-05-11 | 2017-01-18 | 南宁市夏阳化工科技有限责任公司 | Produce automobile -used ureal baffle crystallization equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105771305B (en) | 2018-10-02 |
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