CN205235780U - Be used for automobile -used ureal blending device of melting urea preparation - Google Patents
Be used for automobile -used ureal blending device of melting urea preparation Download PDFInfo
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- CN205235780U CN205235780U CN201520630783.1U CN201520630783U CN205235780U CN 205235780 U CN205235780 U CN 205235780U CN 201520630783 U CN201520630783 U CN 201520630783U CN 205235780 U CN205235780 U CN 205235780U
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Abstract
The utility model discloses a be used for automobile -used ureal blending device of melting urea preparation, it includes: mounting flange (8), mixing arrangement bucket wall (9), penetration multitube mix piece (10) after mounting flange (5), anticlockwise monolithic (6), rotate right monolithic (7), the vortex sheet before melting urea liquid inlet flange (1), the import of melting urea liquid (2), ultrapure water feed inlet (3), ultrapure water melting urea mixed zone (4), the vortex sheet, the penetration multitube mixes the rearmounted flange (11) of piece, mixes buffers (12), mixed liquid outlet (13). This heat transfer device simple structure practices thrift characteristics such as energy consumption, small in size, is not needing under the dominant exterior condition, and the ultrapure water mixes through the urea that line mixer can produce reposition of redundant personnel, cross -mixed and the three effect of reverse whirl and molten condition. The mixing efficiency is up to 98%. The effectual mixed problem of melting urea production in -process with the ultrapure water of having solved has improved automobile -used urea production efficiency greatly.
Description
Technical field
The utility model belongs to exhaust gas from diesel vehicle Treatment Solution technical field, is specifically related to a kind of blending device of preparing automobile-used urea for fusing urea, is mainly used in the production field of automobile-used urea standard liquid.
Background technology
Lot of experiments shows, SCR technology (SCR) is best suited for " state's IV " discharge solution of diesel vehicle, and this technology must utilize urea liquid to the NO in tail gasXProcess, thereby automobile-used urea liquid becomes the essential product of " state's IV " discharge solution. Urea SCR technology by spraying into a certain amount of aqueous solution of urea in blast pipe, and urea obtains reducing agent NH through pervaporation, pyrolysis and hydrolytic process again3，NH3Under the effect of catalyst, optionally NOx is reduced to N2Thereby, realize and reduce NOXDischarge. The production technology of current automobile-used urea has: the ratio that ultrapure urea crystal and ultra-pure water are 31.8%～33.3% according to urea concentration is mixed, after common agriculture urea mixes with ultra-pure water, prepare automobile-used urea etc. by purifying, above method is subject to the production that the relative influence such as production capacity are unfavorable for carrying out extensive automobile-used urea solution.
The another kind of production method of automobile-used urea is that the urea liquid that generates in urea production process is after flash vaporization is removed remaining ammonia and carbon dioxide, do not need granulation can directly be used for producing automobile-used urea liquid, melting liquid before the external carbamide granulation of employing is conventionally as raw material, after being purified, it adds special purification water, after adsorption filtration, just can produce automobile-used urea liquid, in carbamide granulation process, need to consume a large amount of steam, the discharge that does not need granulation to reach energy-saving and cost-reducing, to reduce the pernicious gases such as granulation formaldehyde from production link, the object of reduction environmental pollution. At present domestic in the production process of common agriculture urea, the technology that the urea liquid of generation can directly be used for producing automobile-used urea liquid is subject to that fusing urea is difficult to ultra-pure water to mix, urea liquid out after the current domestic project text that yet there are no Successful Practice of puzzlement of the problem such as easy crystallization.
Summary of the invention
Utility model object: be a kind of reasonable in design of research and development design, what have wide range of applications prepares the blending device of automobile-used urea for fusing urea, successfully solving fusing urea effectively mixes with ultra-pure water, effectively prevent the crystallization in mixed process, be conducive to large-scale production and the practice of this project.
The utility model patent is to adopt following technical scheme to realize: a kind of blending device of preparing automobile-used urea for fusing urea, it comprises: before molten urea solution suction flange 1, molten urea solution import 2, ultra-pure water charging aperture 3, ultra-pure water fusing urea mixed zone 4, blade, after mounting flange 5, anticlockwise monolithic 6, right rotation monolithic 7, blade, mounting flange 8, mixing arrangement bucket wall 9, the mixed sheet 10 of penetration multitube, penetration multitube mix the rearmounted flange 11 of sheet, mix buffering area 12, product outlet 13.
Described molten urea solution suction flange 1 connects molten urea solution import 2, and ultra-pure water charging aperture 3 is through mixing arrangement bucket wall 9.
Mounting flange 8 principal security anticlockwise monolithics 6 after mounting flange 5 and blade before described blade, right rotation monolithic 7 can disassembly, cleaning in the time running into urea liquid crystallization.
Described anticlockwise monolithic 6 connects right rotation monolithic 7, right rotation monolithic 7 connects mounting flange 8 after blade, connect that mounting flange 8 liquid outlets after blade connect mixed sheet 10 inlets of penetration multitubes, mixed sheet 10 liquid outlets of penetration multitube connect the rearmounted flange 11 of the mixed sheet of penetration multitubes, and the rearmounted flange 11 of the mixed sheet of penetration multitube connects and mixes buffering areas 12 and mix product outlets 13.
The beneficial effects of the utility model: 1) there is no moving component, do not have wearing and tearing, almost there is no maintenance cost, residence time of material short (generally only several seconds), installation and maintenance and easy to clean; 2) continuous processing, mixed process is not interrupted, and mass-transfer efficiency is very high, and pressure drop and energy consumption are very low; 3) have rapidly and efficiently mix, simple in structure, save the features such as energy consumption, volume be small and exquisite, do not needing in outer power situation, ultra-pure water can be produced shunting, be intersected and mix and reverse three effects of eddy flow mix with the urea of molten condition by pipe-line mixer. Mixing efficiency is up to 98%. Effectively solve in fusing urea production process and the mixed problem of ultra-pure water, greatly improved automobile-used urea production efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1 is that molten urea solution suction flange, 2 is for molten urea solution import, 3 is for ultra-pure water charging aperture, 4 is for ultra-pure water fusing urea mixed zone, 5 is for mounting flange, 6 before blade is for anticlockwise monolithic, 7 is for right rotation monolithic, 8 is for mounting flange, 9 after blade is for mixing arrangement bucket wall, 10 is for the mixed sheet of penetration multitube, 11 is for the rearmounted flange of the mixed sheet of penetration multitube, 12 is for mixing buffering area, 13 for mixing product outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described: a kind of blending device of preparing automobile-used urea for fusing urea, comprise molten urea solution suction flange (1), molten urea solution import (2), ultra-pure water charging aperture (3), ultra-pure water fusing urea mixed zone (4), mounting flange (5) before blade, anticlockwise monolithic (6), right rotation monolithic (7), mounting flange after blade (8), mixing arrangement bucket wall (9), penetration multitube mixes sheet (10), the mixed rearmounted flange of sheet of penetration multitube (11), mix buffering area (12), mixture export (13).
Described molten urea solution suction flange (1) connects molten urea solution import (2), and ultra-pure water charging aperture (3) is through mixing arrangement bucket wall (9).
Mounting flange (8) principal security anticlockwise monolithic (6) after mounting flange (5) and blade before described blade, right rotation monolithic (7) can disassembly, cleaning in the time running into urea liquid crystallization.
Described anticlockwise monolithic (6) connects right rotation monolithic (7), mounting flange (8) after right rotation monolithic (7) connection blade.
After connecting blade, mounting flange (8) liquid outlet connects mixed sheet (10) inlet of penetration multitube, mixed sheet (10) the liquid outlet connection penetration mixed rearmounted flange of sheet of multitube of penetration multitube (11), and the mixed rearmounted flange of sheet of penetration multitube (11) connection mixes buffering area (12) and mixes product outlet (13).
First 80% urea liquid generating in urea production process controls biuret≤0.3% well, formaldehyde≤5mg/Kg, phosphate≤0.5mg/Kg, and calcium, magnesium, iron, copper, the impurity contents such as zinc enter a kind of blending device of preparing automobile-used urea for fusing urea of this utility model after lower than automobile-used urea standard-required, thereby fusing urea pipeline connects molten urea solution suction flange (1) by flange ensures that ultra-pure water that fusing urea can enter by molten urea solution import (2) and ultra-pure water charging aperture (3) mixes the fixing helical blade that is incorporated in ultra-pure water fusing urea mixed zone (4) and is tentatively mixed into distortion.
Every joint blender has the fixing helical blade of 180 ° of distortions, and point anticlockwise monolithic (6) connects (7) two kinds of right rotation monolithics. Helical blade direction of rotation in adjacent two joints is contrary, and is staggered 90 °. In pipeline, anticlockwise monolithic (6) connection right rotation monolithic (7) is fixed, and fluid produces to flow to by its and changes, thereby occurs turbulent phenomenon raising mixing efficiency. Anticlockwise monolithic (6) is connected by central shaft with right rotation monolithic (7), when mounting flange (8) is mainly used in fixing helical blade obstruction after mounting flange (5) and blade before blade, can unclamps and clean.
Enter penetration multitube through the fusing urea mixed liquor of right rotation monolithic (7) and mix sheet (10) inlet, the mixed rearmounted flange of sheet of penetration multitube (11) is mainly used in when the mixed sheet (10) of penetration multitube is stopped up by crystallization urea easily dismantling and cleaning. Enter and mix buffering area (12) through the urea liquid of the mixed sheet (10) of penetration multitube, the urea liquid outlet that mixes buffering area (12) is connected to follow-up homogeneous dilution operation by mixture export flange (13).
Ultra-pure water import (3), molten urea solution import (2) adpting flange adopt connection standard to adopt HG/T20615-2009SO-RF, mix product outlet (13) flange employing connection standard employing HG/T20615-2009SO-RF, and the concrete material of blending device is generally stainless steel or PE material.
Prepare ultra-pure water that the blending device of automobile-used urea mainly enters by adjusting and the amount of molten urea solution through the utility model patent is a kind of for fusing urea, ensure that automobile-used urea concentration scope is 35% ~ 40%.
The urea solution of this urea concentration scope 35% ~ 40% is entering follow-up homogeneous water tank, by adding ultra-pure water to carry out the adjusting of urea content, ensure that urea content is 31.8% ~ 33.2%, this requirement reaches the requirement of the urea content of the automobile-used urea of GB (Diesel engine NOx reducing agent aqueous solution of urea AUS32).
The utlity model has rapidly and efficiently mixing, simple in structure, save the features such as energy consumption, volume be small and exquisite, do not needing in outer power situation, ultra-pure water can produce shunting, intersection mixing and reverse three effects of eddy flow by pipe-line mixer to be mixed with the urea of molten condition. Mixing efficiency is up to 98%. Effectively solve in fusing urea production process and the mixed problem of ultra-pure water, greatly improved automobile-used urea production efficiency.
Claims (5)
1. prepare a blending device for automobile-used urea for fusing urea, it is characterized in that this device comprises: before molten urea solution suction flange (1), molten urea solution import (2), ultra-pure water charging aperture (3), ultra-pure water fusing urea mixed zone (4), blade, after mounting flange (5), anticlockwise monolithic (6), right rotation monolithic (7), blade, mounting flange (8), mixing arrangement bucket wall (9), the mixed sheet (10) of penetration multitube, penetration multitube mix the rearmounted flange of sheet (11), mix buffering area (12), mixture export (13); Described molten urea solution suction flange (1) connects molten urea solution import (2), and ultra-pure water charging aperture (3) is through cylindrical shell (9); After mounting flange (5) and blade, mounting flange (8) principal security anticlockwise monolithic (6), right rotation monolithic (7) can disassembly, cleaning in the time running into urea liquid crystallization before described blade; Described anticlockwise monolithic (6) connects right rotation monolithic (7), mounting flange (8) after right rotation monolithic (7) connection blade; Mounting flange after described blade (8) liquid outlet connects mixed sheet (10) inlet of penetration multitube, mixed sheet (10) liquid outlet of penetration multitube connects the mixed rearmounted flange of sheet of penetration multitube (11), and the mixed rearmounted flange of sheet of penetration multitube (11) connects and mixes buffering area (12) and mix product outlet (13).
2. prepare the blending device of automobile-used urea for fusing urea for one kind, it is characterized in that: described anticlockwise monolithic (6) is connected by central shaft with right rotation monolithic (7), when mounting flange (8) is mainly used in fixing helical blade obstruction after mounting flange (5) and blade before blade, can unclamps and clean.
3. a blending device of preparing automobile-used urea for fusing urea, is characterized in that: described a kind of blending device cylindrical shell (9) employing stainless steel of preparing automobile-used urea for fusing urea.
4. a blending device of preparing automobile-used urea for fusing urea, is characterized in that: the mixed rearmounted flange of sheet of penetration multitube (11) is mainly used in when the mixed sheet (10) of penetration multitube is stopped up by crystallization urea easily dismantling and cleaning.
5. prepare the blending device of automobile-used urea for fusing urea for one kind, it is characterized in that: ultra-pure water import (3), molten urea solution import (2) adpting flange adopt connection standard to adopt HG/T20615-2009SO-RF, mix product outlet (13) flange and adopt connection standard to adopt HG/T20615-2009SO-RF, blending device specification is generally stainless steel or PE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630783.1U CN205235780U (en) | 2015-08-20 | 2015-08-20 | Be used for automobile -used ureal blending device of melting urea preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630783.1U CN205235780U (en) | 2015-08-20 | 2015-08-20 | Be used for automobile -used ureal blending device of melting urea preparation |
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| CN205235780U true CN205235780U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520630783.1U Active CN205235780U (en) | 2015-08-20 | 2015-08-20 | Be used for automobile -used ureal blending device of melting urea preparation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559903A (en) * | 2019-09-20 | 2019-12-13 | 杭州沈氏节能科技股份有限公司 | Static mixer |
-
2015
- 2015-08-20 CN CN201520630783.1U patent/CN205235780U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559903A (en) * | 2019-09-20 | 2019-12-13 | 杭州沈氏节能科技股份有限公司 | Static mixer |
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