CN112121654A - Efficient production and purification system for standard urea solution for vehicle - Google Patents
Efficient production and purification system for standard urea solution for vehicle Download PDFInfo
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- CN112121654A CN112121654A CN202011185346.5A CN202011185346A CN112121654A CN 112121654 A CN112121654 A CN 112121654A CN 202011185346 A CN202011185346 A CN 202011185346A CN 112121654 A CN112121654 A CN 112121654A
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- stirring
- box
- shaft
- stirring shaft
- filter screen
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000004202 carbamide Substances 0.000 title claims abstract description 46
- 238000000746 purification Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 91
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012086 standard solution Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 7
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 241000220317 Rosa Species 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Images
Classifications
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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
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/15—Dissolving comprising constructions for blocking or redispersing undissolved solids, e.g. sieves, separators or guiding constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/50—Elements used for separating or keeping undissolved material in the mixer
- B01F21/503—Filters
-
- 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
- B01F23/80—After-treatment of the mixture
-
- 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
- B01F23/80—After-treatment of the mixture
- B01F23/802—Cooling the mixture
-
- 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
- B01F23/80—After-treatment of the mixture
- B01F23/808—Filtering the mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
- B01F35/187—Preventing generation of dust or dirt; Sieves; Filters using filters in mixers, e.g. during venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/93—Heating or cooling systems arranged inside the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/98—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides an efficient automobile-used urea standard solution production and purification system, which relates to the technical field of urea production and comprises a stirring box, wherein a box cover is installed at the top of the stirring box, a motor is installed at the top of the box cover, the output end of the motor is connected with a stirring shaft, stirring blades are welded on one side of the outer wall of the stirring shaft, a first filter screen is connected to the outer wall of the stirring shaft, a rotating plate is connected to the bottom of the stirring shaft, an empty groove is formed in the bottom of the stirring shaft, a fixed shaft is connected to the inside of the empty groove, and a rotating shaft is installed. According to the invention, the stirring shaft starts to rotate through the motor, so that the stirring blades start to rotate, the stirring shaft rotates, the rotating plate also starts to rotate through the rotating shaft, urea rotates in the stirring box, the stirring blades stir the urea, and the urea is fully dissolved under the heating of the heating wire, so that the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of urea production, in particular to a high-efficiency production and purification system for a standard urea solution for a vehicle.
Background
With the development of scientific technology and the progress of times, the automotive urea is suitable for cars, trucks, buses and heavy off-road diesel engine vehicles equipped with SCR (selective catalytic reduction exhaust gas aftertreatment) systems, is a necessary consumable in SCR technology, and converts harmful nitrogen oxides discharged by diesel engines into harmless water vapor and nitrogen together with an SCR catalyst. With the approach of the implementation time of national IV emission standards, national great cities such as Beijing, Shenzhen and Shanghai have started to implement the national IV standards in advance.
The existing urea is single in form during mixing, so that urea is not fully dissolved, the use is influenced, and the biuret is not thoroughly purified in a purification system, so that the quality of the urea is poor.
Disclosure of Invention
The invention aims to solve the defects that the urea is not fully dissolved and the use is influenced due to a single form of the existing urea during mixing, and the urea quality is poor due to incomplete purification of biuret in a purification system, and provides the efficient automotive urea standard solution production and purification system.
In order to achieve the purpose, the efficient automobile urea standard solution production and purification system adopts the technical scheme that: the efficient production and purification system for the automobile urea standard solution comprises a stirring tank, wherein a tank cover is installed at the top of the stirring tank, a motor is installed at the top of the tank cover, an output end of the motor is connected with a stirring shaft, stirring blades are welded on one side of the outer wall of the stirring shaft, a first filter screen is connected to the outer wall of the stirring shaft, a rotating plate is connected to the bottom of the stirring shaft, an empty groove is formed in the bottom of the stirring shaft, a fixed shaft is connected to the inside of the empty groove, a rotating shaft is installed at the bottom of the rotating plate, a gas collecting box is installed on one side of the lower end of the tank cover, a second filter screen is arranged inside the gas collecting box, a gas outlet is formed in one side of the gas collecting box, a first pipeline is connected to one side of the bottom of the stirring tank, a water pump, the condenser pipe is installed to the inside top of rose box, and the inside below of rose box installs the third filter screen, the bottom of third filter screen is equipped with the activated carbon layer, the inner wall middle part of agitator tank is connected with the heater.
Preferably, the motor and the stirring blade form a rotating structure through the stirring shaft, and the stirring blade is symmetrical about the central axis of the stirring shaft.
Preferably, the first filter screen is fixedly connected with the stirring shaft, and three groups of the first filter screen are distributed.
Preferably, the rotating plate and the stirring box form a rotating structure through a rotating shaft, and the area of the rotating plate is equal to the area of the bottom end of the stirring box.
Preferably, the stirring shaft and the fixed shaft form a detachable structure through the empty groove, and the fixed shaft is fixedly connected with the rotating plate.
Preferably, the central axis of the condensation pipe is on the same straight line with the central axis of the filter box, and the condensation pipe is spiral.
Preferably, the bottom center of the third filter screen coincides with the top center of the activated carbon layer, and the length of the third filter screen is equal to the length of the activated carbon layer.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the stirring shaft starts to rotate through the motor, so that the stirring blades start to rotate, the stirring shaft rotates, the rotating plate also starts to rotate through the rotating shaft, urea rotates in the stirring box, the stirring blades stir the urea, and the urea is fully dissolved under the heating of the heating wire, so that the working efficiency is improved.
2. According to the invention, when urea is dissolved in the stirring box, a large amount of biuret foam is generated in the stirring box through heating of the heating wire, so that the foam is separated from the urea under the action of the first filter screen, and then the biuret is discharged under the action of the third filter screen and the activated carbon layer, so that the purification effect is better, and the quality of the urea is ensured.
3. According to the invention, the stirring shaft is clamped and connected with the fixed shaft through the empty groove, so that the box cover and the stirring box can be disassembled, the stirring box and the stirring shaft can be cleaned, urea flows into the filter box under the action of the water pump, and the condensation pipe is spiral, so that the urea can be rapidly cooled, and the efficient purification can be realized.
Drawings
FIG. 1 is a schematic front view of a purification system according to the present invention;
FIG. 2 is a schematic view of the internal structure of a stirring shaft in the present invention;
FIG. 3 is a schematic view of the inner wall structure of the stirring tank of the present invention.
Illustration of the drawings:
1. a stirring box; 2. a first filter screen; 3. a motor; 4. a stirring shaft; 5. a box cover; 6. a gas collection box; 7. a second filter screen; 8. an air outlet; 9. a rotating plate; 10. a rotating shaft; 11. a first conduit; 12. a water pump; 13. a second conduit; 14. a condenser tube; 15. a filter box; 16. a third filter screen; 17. an activated carbon layer; 18. a stirring blade; 19. a fixed shaft; 20. an empty groove; 21. a heating wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a high-efficiency production and purification system for a standard urea solution for a vehicle comprises a stirring box 1, a first filter screen 2, a motor 3, a stirring shaft 4, a box cover 5, a gas collection box 6, a second filter screen 7, a gas outlet 8, a rotating plate 9, a rotating shaft 10, a first pipeline 11, a water pump 12, a second pipeline 13, a condensing pipe 14, a filter box 15, a third filter screen 16, an activated carbon layer 17, stirring blades 18, a fixing shaft 19, an empty groove 20 and a heating wire 21, wherein the box cover 5 is installed on the top of the stirring box 1, the motor 3 is installed on the top of the box cover 5, the stirring shaft 4 is connected to the output end of the motor 3, the stirring blades 18 are welded to one side of the outer wall of the stirring shaft 4, the first filter screen 2 is connected to the outer wall of the stirring shaft 4, the rotating plate 9 is connected to the bottom of the, the pivot 10 is installed to the bottom of rotor plate 9, gas collecting box 6 is installed to the low side one side of case lid 5, and the inside arrangement of gas collecting box 6 has second filter screen 7, one side of gas collecting box 6 is equipped with gas outlet 8, bottom one side of agitator tank 1 is connected with first pipeline 11, and one side of first pipeline 11 is connected with water pump 12, one side of water pump 12 is connected with second pipeline 13, and rose box 15 is installed to one side of second pipeline 13, condenser pipe 14 is installed to the inside top of rose box 15, and third filter screen 16 is installed to the inside below of rose box 15, the bottom of third filter screen 16 is equipped with activated carbon layer 17, the inner wall mid-portion of agitator tank 1 is connected with heater 21.
Further, the motor 3 and the stirring blade 18 form a rotating structure through the stirring shaft 4, and the stirring blade 18 is symmetrical about the central axis of the stirring shaft 4, so that the stirring shaft 4 and the stirring blade 18 start to rotate through the motor 3.
Furthermore, the first filter screen 2 is fixedly connected with the stirring shaft 4, three groups of first filter screens 2 are distributed, and foams are separated from urea under the action of the first filter screen 2.
Further, the rotating plate 9 and the stirring tank 1 form a rotating structure through the rotating shaft 10, the area of the rotating plate 9 is equal to the area of the bottom end of the stirring tank 1, and the rotating plate 9 starts to rotate inside the stirring tank 1 through the rotating shaft 10.
Further, (mixing) shaft 4 passes through dead slot 20 and fixed axle 19 constitution detachable construction, and is fixed connection between fixed axle 19 and the rotor plate 9 for (mixing) shaft 4 is when rotating, through driving fixed axle 19, makes rotor plate 9 also can rotate, and the dismantlement of (mixing) shaft 4 of also being convenient for is conveniently washd.
Further, the central axis of the condensation pipe 14 and the central axis of the filter box 15 are on the same straight line, and the condensation pipe 14 is spiral, so that the contact area between urea and the condensation pipe 14 is increased, and urea can be rapidly cooled.
Further, the bottom center of the third filter screen 16 coincides with the top center of the activated carbon layer 17, and the length of the third filter screen 16 is equal to the length of the activated carbon layer 17, so that biuret is removed through the third filter screen 16 and the activated carbon layer 17, other impurities and heavy metals are also removed, and the quality of urea is ensured.
The working principle is as follows: when in use, urea and water are put into the stirring box 1, then the motor 3 (model: Y100L 1-4) is used for enabling the stirring shaft 4 to start rotating, the stirring blades 18 start rotating, the stirring shaft 4 starts rotating simultaneously, the rotating plate 9 starts rotating through the rotating shaft 10, the urea rotates in the stirring box 1, the stirring blades 18 stir the urea, the urea is fully dissolved under the heating of the heating wire 21, simultaneously the generated ammonia gas enters the gas collection box 6, the ammonia gas is discharged from the gas outlet 8 after being filtered by the second filter screen 7, the safety of workers is ensured, then the first filter screen 2 filters a large amount of biuret foam generated in the stirring box 1, then the urea enters the filter box 15 through the first pipeline 11 and the second pipeline 13 through the water pump 12, and then the urea rapidly heats under the action of the condensing pipe 14, and biuret is removed through the third filter screen 16 and the activated carbon layer 17, other impurities and heavy metals are removed, the quality of urea is ensured, and efficient purification is achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The efficient production and purification system for the automobile urea standard solution comprises a stirring box and is characterized in that a box cover is installed at the top of the stirring box, a motor is installed at the top of the box cover, an output end of the motor is connected with a stirring shaft, stirring blades are welded on one side of the outer wall of the stirring shaft, a first filter screen is connected to the outer wall of the stirring shaft, a rotating plate is connected to the bottom of the stirring shaft, an empty groove is formed in the bottom of the stirring shaft, a fixed shaft is connected to the inside of the empty groove, a rotating shaft is installed at the bottom of the rotating plate, a gas collecting box is installed on one side of the lower end of the box cover, a second filter screen is arranged inside the gas collecting box, a gas outlet is formed in one side of the gas collecting box, a first pipeline is connected to one side of, and a filter box is installed on one side of the second pipeline, a condenser pipe is installed above the interior of the filter box, a third filter screen is installed below the interior of the filter box, an activated carbon layer is arranged at the bottom end of the third filter screen, and a heating wire is connected to the middle part of the inner wall of the stirring box.
2. The efficient system for producing and purifying the standard urea solution for the vehicle as claimed in claim 1, wherein the motor and the stirring blade form a rotating structure through the stirring shaft, and the stirring blade is symmetrical about the central axis of the stirring shaft.
3. The efficient system for producing and purifying the standard urea solution for the vehicle as claimed in claim 1, wherein the first filter screen is fixedly connected with the stirring shaft, and three groups of the first filter screen are distributed.
4. The high-efficiency production and purification system for standard urea solution for vehicle as claimed in claim 1, wherein said rotating plate and said stirring tank form a rotating structure through a rotating shaft, and the area of said rotating plate is equal to the area of the bottom end of said stirring tank.
5. The efficient system for producing and purifying the standard urea solution for the vehicle as claimed in claim 1, wherein the stirring shaft is detachably connected to the fixed shaft through a hollow groove, and the fixed shaft is fixedly connected to the rotating plate.
6. The efficient system for producing and purifying standard urea solution for vehicles as claimed in claim 1, wherein the central axis of said condenser tube is aligned with the central axis of said filter box, and said condenser tube is spiral.
7. The high-efficiency production and purification system for standard urea solution for vehicle as claimed in claim 1, wherein the bottom center of said third filter is coincident with the top center of said activated carbon layer, and the length of said third filter is equal to the length of said activated carbon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011185346.5A CN112121654A (en) | 2020-10-29 | 2020-10-29 | Efficient production and purification system for standard urea solution for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011185346.5A CN112121654A (en) | 2020-10-29 | 2020-10-29 | Efficient production and purification system for standard urea solution for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112121654A true CN112121654A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011185346.5A Pending CN112121654A (en) | 2020-10-29 | 2020-10-29 | Efficient production and purification system for standard urea solution for vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN112121654A (en) |
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|---|---|---|---|---|
| US20160325227A1 (en) * | 2015-05-05 | 2016-11-10 | Vovax Material and Technology | Manufacturing Method of Urea Solution Used For Intelligent And High Efficiency Diesel Engine Vehicle |
| CN206566776U (en) * | 2017-02-22 | 2017-10-20 | 东莞市百和环保科技有限公司 | A kind of urea dissolver |
| CN107774183A (en) * | 2016-08-31 | 2018-03-09 | 衡水卡力洁环保科技有限公司 | A kind of urea for vehicle production equipment and process |
| CN108421443A (en) * | 2018-03-08 | 2018-08-21 | 尹成龙 | A kind of agitating device for building that mixing effect is good |
| CN208642408U (en) * | 2018-08-21 | 2019-03-26 | 宜昌微诺科技有限公司 | A kind of efficient urea for vehicle solution preparing tank |
| CN111013438A (en) * | 2019-12-05 | 2020-04-17 | 抚州市东乡区莉芳节能环保科技有限公司 | Purification device for automobile-used urea production |
| CN111013230A (en) * | 2019-12-17 | 2020-04-17 | 天蓝素(十堰)汽车环保科技有限公司 | Automobile-used urea is filter equipment for solution |
| CN211098702U (en) * | 2019-10-18 | 2020-07-28 | 河南宫川食品有限公司 | Mixer is used in vermicelli production |
| CN213966024U (en) * | 2020-10-29 | 2021-08-17 | 河南弘康环保科技有限公司 | Efficient production and purification system for automobile-used urea standard solution |
-
2020
- 2020-10-29 CN CN202011185346.5A patent/CN112121654A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160325227A1 (en) * | 2015-05-05 | 2016-11-10 | Vovax Material and Technology | Manufacturing Method of Urea Solution Used For Intelligent And High Efficiency Diesel Engine Vehicle |
| CN107774183A (en) * | 2016-08-31 | 2018-03-09 | 衡水卡力洁环保科技有限公司 | A kind of urea for vehicle production equipment and process |
| CN206566776U (en) * | 2017-02-22 | 2017-10-20 | 东莞市百和环保科技有限公司 | A kind of urea dissolver |
| CN108421443A (en) * | 2018-03-08 | 2018-08-21 | 尹成龙 | A kind of agitating device for building that mixing effect is good |
| CN208642408U (en) * | 2018-08-21 | 2019-03-26 | 宜昌微诺科技有限公司 | A kind of efficient urea for vehicle solution preparing tank |
| CN211098702U (en) * | 2019-10-18 | 2020-07-28 | 河南宫川食品有限公司 | Mixer is used in vermicelli production |
| CN111013438A (en) * | 2019-12-05 | 2020-04-17 | 抚州市东乡区莉芳节能环保科技有限公司 | Purification device for automobile-used urea production |
| CN111013230A (en) * | 2019-12-17 | 2020-04-17 | 天蓝素(十堰)汽车环保科技有限公司 | Automobile-used urea is filter equipment for solution |
| CN213966024U (en) * | 2020-10-29 | 2021-08-17 | 河南弘康环保科技有限公司 | Efficient production and purification system for automobile-used urea standard solution |
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