CN108176319A - A kind of ultra-clean production system preparation method of urea for vehicle solution - Google Patents
A kind of ultra-clean production system preparation method of urea for vehicle solution Download PDFInfo
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- CN108176319A CN108176319A CN201810049935.7A CN201810049935A CN108176319A CN 108176319 A CN108176319 A CN 108176319A CN 201810049935 A CN201810049935 A CN 201810049935A CN 108176319 A CN108176319 A CN 108176319A
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- Prior art keywords
- urea
- high purity
- purity water
- water
- mixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/708—Filtering materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
Abstract
The invention discloses a kind of ultra-clean production system preparation methods of urea for vehicle solution, include the following steps：It detects whether high purity water is up to standard to be extracted high purity water using water pump, and passes through and detect whether high purity water has impurity to be mixed into, if so, to be re-fed into water tank water storage for use for first filtering, if non-impurity is mixed into, it is for use to be sent directly into water tank；Premixing, it obtains a part of high purity water and carries out being mixed to get urea saturated solution with urea, then by then carrying out crystallization cooling after the urea saturated solution is first passed through 30 65 ° of temperature pipeline temperature rises, by purification processes after cooling, then it carries out active carbon filter and is filtered processing, obtain the solid urea object of high-purity；Then the high purity water in solid urea object and water tank is subjected to ratio and is mixed to get urea for vehicle solution, the urea for vehicle solution is then subjected to secondary filter, obtains final product；By the waste liquid for crystallizing cooling generation by filter sterilization, most start step as high purity water feeding after purification.
Description
Technical field
The present invention relates to a kind of technical fields of urea for vehicle production, and it is ultra-clean to especially relate to a kind of urea for vehicle solution
Production system preparation method.
Background technology
Urea for vehicle is the essential product that heavy-duty diesel vehicle reaches four discharge standard of state.Urea for vehicle refers to that urea concentration is
32.5% and solvent be ultra-pure water aqueous solution of urea, raw material be urea for vehicle special raw material and ultra-pure water.Domestic urea for vehicle
It is mainly got from industrial urea purification, cardinal principle is：1) in 70-75 DEG C of temperature, water occurs in aqueous solution for urea
Solution.2) when below 30 DEG C of temperature, urea is crystallized out from aqueous solution again.3) often hydrolysis crystallization is primary, and purity can obtain
It is generally primary using industrial level-one hydrolysis of urea crystallization to greatly improving, so that it may reach urea for vehicle standard and require, output ratio
Example is 1.5：1, but clean-up effect is poor in the production process of urea for vehicle at present, leads to final urea for vehicle solution purity not
Height, product impurity is more, influences final using effect.
Invention content
A kind of good purification is provided the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art, product meets
It is required that a kind of ultra-clean production system preparation method of urea for vehicle solution.
To achieve these goals, the ultra-clean production system preparation method of a kind of urea for vehicle solution designed by the present invention,
Specifically include following steps：
Whether S1, detection high purity water are up to standard, obtain high purity water, and high purity water is extracted, and pass through detection high purity water using water pump
Whether there is impurity to be mixed into transportational process, if so, carrying out quartz filter, active carbon filter, accurate filter successively
It is sent into that water tank water storage is for use, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea afterwards, is sent directly into water tank and stores up
Water is for use；
S2, premixing obtain after a part detection high purity water up to standard and carry out being mixed to get urea saturation with urea molten
Liquid using aeration mode and homogeneous system, removes the aldehydes in material liquid, and play the role of homogeneous, then by by the urea
Then saturated solution carries out crystallization cooling after first passing through 30-65 ° of temperature pipeline temperature rise, by purification processes, Ran Houjin after cooling
Row active carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, so
The urea for vehicle solution is subjected to secondary filter afterwards, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
Further, high temperature antivirus drying and processing will be carried out inside water tank.
Further, above-mentioned all steps work in a sealed meter environment.
Further, in step s 2 by detecting current environmental temperature in real time, when environment temperature is less than high purity water and urea
During the thermotonus of mixing, start heating system immediately and heated.
Further, defects inspecting first is carried out to urea before uremic is mixed with high purity water in step s 2, works as urea
In first pass through and filter out impurity treatment when containing impurity after, then react with high purity water, if free from admixture is directly reacted with high purity water.
The ultra-clean production system preparation method of a kind of urea for vehicle solution that the present invention obtains, this method pass through in mixed process
It is middle that first product mix is detected so that the product purity higher being finally mixed with, clean-up effect is more preferable, and final products are real
Existing super-purifying treatment, while be first pre-mixed, high purity urea crystallization is obtained, is then being mixed, the automobile-used urine finally obtained
Plain solution purity higher, is more in line with requirement.
Specific embodiment
The present embodiment is further illustrated with reference to embodiment.
Embodiment 1：
The ultra-clean production system preparation method of a kind of urea for vehicle solution provided in the present embodiment, specifically includes following step
Suddenly：
Whether S1, detection high purity water are up to standard, obtain high purity water, and high purity water is extracted, and pass through detection high purity water using water pump
Whether there is impurity to be mixed into transportational process, if so, carrying out quartz filter, active carbon filter, accurate filter successively
It is sent into that water tank water storage is for use, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea afterwards, is sent directly into water tank and stores up
Water is for use；
S2, premixing obtain after a part detection high purity water up to standard and carry out being mixed to get urea saturation with urea molten
Liquid using aeration mode and homogeneous system, removes the aldehydes in material liquid, and play the role of homogeneous, then by by the urea
Then saturated solution carries out crystallization cooling after first passing through 30 ° of temperature pipeline temperature rises, by purification processes after cooling, then live
Property carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, so
The urea for vehicle solution is subjected to secondary filter afterwards, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
Further, high temperature antivirus drying and processing will be carried out inside water tank.
Further, above-mentioned all steps work in a sealed meter environment.
Further, anti-icing fluid is added in the premixing processing procedure of step S2.
Further, defects inspecting first is carried out to urea before uremic is mixed with high purity water in step s 2, works as urea
In first pass through and filter out impurity treatment when containing impurity after, then react with high purity water, if free from admixture is directly reacted with high purity water.
The ultra-clean production system preparation method of a kind of urea for vehicle solution that the present embodiment obtains, this method was by mixing
Cheng Zhongxian is detected product mix so that the product purity higher being finally mixed with, clean-up effect is more preferable, final products
It realizes super-purifying treatment, while is first pre-mixed, obtain high purity urea crystallization, then mixing, what is finally obtained is automobile-used
Urea liquid purity higher, is more in line with requirement.
Embodiment 2：
The ultra-clean production system preparation method of a kind of urea for vehicle solution provided in the present embodiment, specifically includes following step
Suddenly：
Whether S1, detection high purity water are up to standard, obtain high purity water, and high purity water is extracted, and pass through detection high purity water using water pump
Whether there is impurity to be mixed into transportational process, if so, carrying out quartz filter, active carbon filter, accurate filter successively
It is sent into that water tank water storage is for use, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea afterwards, is sent directly into water tank and stores up
Water is for use；
S2, premixing obtain after a part detection high purity water up to standard and carry out being mixed to get urea saturation with urea molten
Liquid using aeration mode and homogeneous system, removes the aldehydes in material liquid, and play the role of homogeneous, then by by the urea
Then saturated solution carries out crystallization cooling after first passing through 65 ° of temperature pipeline temperature rises, by purification processes after cooling, then live
Property carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, so
The urea for vehicle solution is subjected to secondary filter afterwards, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
Further, high temperature antivirus drying and processing will be carried out inside water tank.
Further, above-mentioned all steps work in a sealed meter environment.
Further, in step s 2 by detecting current environmental temperature in real time, when environment temperature is less than high purity water and urea
During the thermotonus of mixing, start heating system immediately and heated.
Further, anti-icing fluid is added in the premixing processing procedure of step S2.
Further, defects inspecting first is carried out to urea before uremic is mixed with high purity water in step s 2, works as urea
In first pass through and filter out impurity treatment when containing impurity after, then react with high purity water, if free from admixture is directly reacted with high purity water.
The ultra-clean production system preparation method of a kind of urea for vehicle solution that the present embodiment obtains, this method was by mixing
Cheng Zhongxian is detected product mix so that the product purity higher being finally mixed with, clean-up effect is more preferable, final products
It realizes super-purifying treatment, while is first pre-mixed, obtain high purity urea crystallization, then mixing, what is finally obtained is automobile-used
Urea liquid purity higher, is more in line with requirement.
Embodiment 3：
The ultra-clean production system preparation method of a kind of urea for vehicle solution provided in the present embodiment, specifically includes following step
Suddenly：
Whether S1, detection high purity water are up to standard, obtain high purity water, and high purity water is extracted, and pass through detection high purity water using water pump
Whether there is impurity to be mixed into transportational process, if so, carrying out quartz filter, active carbon filter, accurate filter successively
It is sent into that water tank water storage is for use, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea afterwards, is sent directly into water tank and stores up
Water is for use；
S2, premixing obtain after a part detection high purity water up to standard and carry out being mixed to get urea saturation with urea molten
Liquid using aeration mode and homogeneous system, removes the aldehydes in material liquid, and play the role of homogeneous, then by by the urea
Then saturated solution carries out crystallization cooling after first passing through 50 ° of temperature pipeline temperature rises, by purification processes after cooling, then live
Property carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, so
The urea for vehicle solution is subjected to secondary filter afterwards, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
Further, high temperature antivirus drying and processing will be carried out inside water tank.
Further, above-mentioned all steps work in a sealed meter environment.
Further, in step s 2 by detecting current environmental temperature in real time, when environment temperature is less than high purity water and urea
During the thermotonus of mixing, start heating system immediately and heated.
Further, anti-icing fluid is added in the premixing processing procedure of step S2.
Further, defects inspecting first is carried out to urea before uremic is mixed with high purity water in step s 2, works as urea
In first pass through and filter out impurity treatment when containing impurity after, then react with high purity water, if free from admixture is directly reacted with high purity water.
Embodiment 4：
The ultra-clean production system preparation method of a kind of urea for vehicle solution provided in the present embodiment, specifically includes following step
Suddenly：
Whether S1, detection high purity water are up to standard, obtain high purity water, and high purity water is extracted, and pass through detection high purity water using water pump
Whether there is impurity to be mixed into transportational process, if so, carrying out quartz filter, active carbon filter, accurate filter successively
It is sent into that water tank water storage is for use, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea afterwards, is sent directly into water tank and stores up
Water is for use；
S2, premixing obtain after a part detection high purity water up to standard and carry out being mixed to get urea saturation with urea molten
Liquid using aeration mode and homogeneous system, removes the aldehydes in material liquid, and play the role of homogeneous, then by by the urea
Then saturated solution carries out crystallization cooling after first passing through 45 ° of temperature pipeline temperature rises, by purification processes after cooling, then live
Property carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, so
The urea for vehicle solution is subjected to secondary filter afterwards, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
Further, high temperature antivirus drying and processing will be carried out inside water tank.
Further, above-mentioned all steps work in a sealed meter environment.
Further, in step s 2 by detecting current environmental temperature in real time, when environment temperature is less than high purity water and urea
During the thermotonus of mixing, start heating system immediately and heated.
Further, anti-icing fluid is added in the premixing processing procedure of step S2.
Further, defects inspecting first is carried out to urea before uremic is mixed with high purity water in step s 2, works as urea
In first pass through and filter out impurity treatment when containing impurity after, then react with high purity water, if free from admixture is directly reacted with high purity water.
Claims (9)
1. a kind of ultra-clean production system preparation method of urea for vehicle solution, it is characterised in that：Specifically include following steps：
Whether S1, detection high purity water are up to standard, obtain high purity water, extract high purity water using water pump, and pass through and detect high purity water and transporting
Whether there is impurity to be mixed into during defeated, if so, being sent after carrying out quartz filter, active carbon filter, accurate filter successively
It is for use to enter water tank water storage, if non-impurity is mixed into, and high purity water is compound that requirement is mixed with urea, is sent directly into water tank water storage and treats
With；
S2, premixing obtain high purity water up to standard after a part detects and carry out being mixed to get urea saturated solution with urea, adopt
With aeration mode and homogeneous system, the aldehydes in material liquid is removed, and play the role of homogeneous, then by the way that the urea saturation is molten
Then liquid carries out crystallization cooling after first passing through 30-65 ° of temperature pipeline temperature rise, by purification processes after cooling, then carry out activity
Carbon filter is filtered processing, obtains the solid urea object of high-purity；
S3 then by solid urea object and water tank high purity water carry out ratio be mixed to get urea for vehicle solution, then will
The urea for vehicle solution carries out secondary filter, obtains final product；
S4, the waste liquid that crystallization cooling generates is passed through into filtering, sterilization is used as high purity water to be sent into step S1 after purification.
2. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 1, it is characterised in that：It will storage
High temperature antivirus drying and processing is carried out inside water tank.
3. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 1 or 2, it is characterised in that：
Above-mentioned all steps work in a sealed meter environment.
4. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 1 or 2, it is characterised in that：
In step s 2 by detecting current environmental temperature in real time, when environment temperature is less than the thermotonus that high purity water is mixed with urea
When, start heating system immediately and heated.
5. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 1 or 2, it is characterised in that：
Anti-icing fluid is added in the premixing processing procedure of step S2.
6. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 1 or 2, it is characterised in that：
In step s 2 before uremic is mixed with high purity water first to urea carry out defects inspecting, when in urea contain impurity when first lead to
It after filtering out impurity treatment, then reacts with high purity water, if free from admixture is directly reacted with high purity water.
7. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 3, it is characterised in that：In step
First to urea progress defects inspecting when uremic is mixed with high purity water before in rapid S2, first passed through when in urea containing impurity
It after filtering out impurity treatment, then reacts with high purity water, if free from admixture is directly reacted with high purity water.
8. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 4, it is characterised in that：In step
First to urea progress defects inspecting when uremic is mixed with high purity water before in rapid S2, first passed through when in urea containing impurity
It after filtering out impurity treatment, then reacts with high purity water, if free from admixture is directly reacted with high purity water.
9. a kind of ultra-clean production system preparation method of urea for vehicle solution according to claim 5, it is characterised in that：In step
First to urea progress defects inspecting when uremic is mixed with high purity water before in rapid S2, first passed through when in urea containing impurity
It after filtering out impurity treatment, then reacts with high purity water, if free from admixture is directly reacted with high purity water.
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| CN201810049935.7A CN108176319A (en) | 2018-01-18 | 2018-01-18 | A kind of ultra-clean production system preparation method of urea for vehicle solution |
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| CN201810049935.7A CN108176319A (en) | 2018-01-18 | 2018-01-18 | A kind of ultra-clean production system preparation method of urea for vehicle solution |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772031A (en) * | 2015-04-14 | 2015-07-15 | 河南心连心化肥有限公司 | Direct vehicle urea solution production device and production method thereof |
| KR101544503B1 (en) * | 2015-06-12 | 2015-08-21 | 경민워터컴(주) | Device for high purity ureasolution and manufacturing method thereof |
| CN105797584A (en) * | 2016-03-29 | 2016-07-27 | 河北鑫达润滑油科技有限公司 | Production method of vehicle-used urea solution |
| CN205850604U (en) * | 2016-07-25 | 2017-01-04 | 苏州耀蓝环保科技有限公司 | The full-automatic device for making of urea for vehicle solution |
| CN107261872A (en) * | 2017-07-06 | 2017-10-20 | 浠水县福瑞德化工有限责任公司 | A kind of urea for vehicle solution production system |
-
2018
- 2018-01-18 CN CN201810049935.7A patent/CN108176319A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772031A (en) * | 2015-04-14 | 2015-07-15 | 河南心连心化肥有限公司 | Direct vehicle urea solution production device and production method thereof |
| KR101544503B1 (en) * | 2015-06-12 | 2015-08-21 | 경민워터컴(주) | Device for high purity ureasolution and manufacturing method thereof |
| CN105797584A (en) * | 2016-03-29 | 2016-07-27 | 河北鑫达润滑油科技有限公司 | Production method of vehicle-used urea solution |
| CN205850604U (en) * | 2016-07-25 | 2017-01-04 | 苏州耀蓝环保科技有限公司 | The full-automatic device for making of urea for vehicle solution |
| CN107261872A (en) * | 2017-07-06 | 2017-10-20 | 浠水县福瑞德化工有限责任公司 | A kind of urea for vehicle solution production system |
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