CN108249461A - De- amine method of purification and equipment and application thereof - Google Patents
De- amine method of purification and equipment and application thereof Download PDFInfo
- Publication number
- CN108249461A CN108249461A CN201810072084.8A CN201810072084A CN108249461A CN 108249461 A CN108249461 A CN 108249461A CN 201810072084 A CN201810072084 A CN 201810072084A CN 108249461 A CN108249461 A CN 108249461A
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- Prior art keywords
- amine
- gas
- solution
- high pressure
- microbubble
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 150000001412 amines Chemical class 0.000 claims abstract description 55
- 238000002360 preparation method Methods 0.000 claims abstract description 44
- 238000007667 floating Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 78
- 239000007788 liquid Substances 0.000 claims description 46
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 31
- 239000006260 foam Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 239000011780 sodium chloride Substances 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- 239000003337 fertilizer Substances 0.000 claims description 8
- 229940072033 potash Drugs 0.000 claims description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- 235000015320 potassium carbonate Nutrition 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 239000003570 air Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 239000013043 chemical agent Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 62
- 239000012071 phase Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000126 substance Substances 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- 239000012267 brine Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000006069 physical mixture Substances 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Abstract
The present invention provides a kind of de- amine method of purification and equipment and application thereof, it is related to abraum salt and takes off amine technical field, the de- amine method of purification is to be passed through high pressure gas in the solution containing amine preparation to obtain high pressure solution gas mixed liquor, the high pressure solution gas mixed liquor generates the microbubble for being adsorbed with amine preparation after low pressure discharges, and the microbubble floating detaches the de- amine of completion with solution.The de- amine method complex process of the prior art can be alleviated using this method, pollution environment caused by adding chemical agent and the technical problems such as of high cost achieve the purpose that reduce de- amine cost and reduce environmental pollution.
Description
Technical field
The present invention relates to abraum salts to take off amine field, more particularly, to a kind of de- amine method of purification and equipment and application thereof.
Background technology
It, can the attached a large amount of sodium chloride tail salt of production during floatation production potassium chloride.The sodium chloride of Cha Er Han Salt Lake at present
Accumulating amount causes serious soil to occupy, environmental pollution and the wasting of resources up to ten million ton.Since this partial oxidation sodium is sampled
Low, impurity is more, if not doing separation and purification, without any industrial value.By demonstration, refine afterchlorinate sodium and burnt as ionic membrane
Alkali raw material is effective " a turning waste into wealth " approach.
Using electrolysis saturated nacl aqueous solution caustic soda is made, while generate hydrogen and chlorine in ion film caustic soda production technology.
Since KCl production uses organic amine medicament to cause to carry a part of such medicament in sodium chloride tail salt secretly as flotation agent,
Liquid phase will certainly be entered during salt dissolving.It, can if amine content is higher in reaction system in ion film caustic soda production technology
The chlorine reaction that can be generated with electrolysis generates agene, is just had when agene reaches 5%-6% in the gas phase quick-fried
Fried danger.So the removing of amine just becomes the emphasis that sodium chloride refines.
In current sodium chloride process for purification, handled with brine and hypochlorite oxidation, gained sodium chloride
Product meets ion film caustic soda ingredient requirement.But the shortcomings that its is intrinsic is it is clear that for example：It is tediously long to handle route, addition chemistry
Environment and of high cost etc. is polluted caused by medicament.
In view of this, it is special to propose the present invention.
Invention content
The first object of the present invention is to provide a kind of de- amine method of purification, to alleviate the de- amine method technique of the prior art
Complexity, pollution environment and the technical problems such as of high cost caused by adding chemical agent.
The second object of the present invention is to provide a kind of de- amine equipment for purifying, and taking off amine equipment for purifying using this can realize
State de- amine method of purification.
The third object of the present invention is that provide a kind of above-mentioned de- amine method of purification or de- amine equipment for purifying produces in potash fertilizer
Exhaust gas sodium chloride refine in purposes.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of de- amine method of purification is passed through high pressure gas in the solution containing amine preparation and obtains high pressure solution gas mixing
Liquid, the high pressure solution gas mixed liquor generate the microbubble for being adsorbed with amine preparation after low pressure discharges, the microbubble float with
De- amine is completed in solution separation.
Further, first being passed through high pressure gas in part is containing the solution of amine preparation obtains intermediate gas-liquid mixture,
Then the solution that the intermediate gas-liquid mixture and remainder contain amine preparation is carried out being mixed to get the high pressure solution gas
Mixed liquor；
Preferably, the high pressure solution gas mixed liquor generates drop after low pressure discharges and is adsorbed with micro- gas of amine preparation
Bubble, the microbubble floats completes de- amine with the drop separation；
Preferably, the drop is atomized drop；
Preferably, the gas in the high pressure gas is selected from air, helium or nitrogen.
A kind of de- amine equipment for purifying, the release device connected including material mixer and with the mixtures of materials are described
The high pressure solution gas mixed liquor containing amine preparation in material mixer generates after the release of release device low pressure is adsorbed with amine
The microbubble of preparation, the microbubble floating detach the de- amine of completion with solution.
Further, the release device includes deammoniation tower and the release being set in the deammoniation tower, the material
Mixer is connected with the release；
Preferably, the release is nozzle；
Preferably, the nozzle is atomizer；
Preferably, the nozzle is M a, and M >=3 and M are natural number.
Further, the collecting board for adsorbing the microbubble is equipped in the deammoniation tower, the collecting board is located at institute
State the top of release；
Preferably, it is equipped in the deammoniation tower and scrapes foam device, the foam device of scraping can be pushed along the collection plate surface
The microbubble movement being adsorbed on the collecting board；
Preferably, the first collecting tank for collecting the microbubble is equipped in the deammoniation tower, the foam device of scraping will
The microbubble on the collecting board is adsorbed in be pushed into first collecting tank；
Preferably, described first trench bottom is collected equipped with foam drainage mouth.
Further, the bottom of the deammoniation tower is equipped with collecting tank；
Preferably, the collecting tank is conical funnel structure, and the sump bottom is equipped with exhaust-control valve.
Further, the deammoniation tower is equipped with overflow discharge unit, and the overflow discharge unit includes the liquid for overflow
Body floss hole and the second collecting tank；
Preferably, triangular-notch weir is equipped in second collecting tank；
Preferably, overflow liquid level is located at (1/2-2/3) of triangular-notch weir sawtooth height.
Further, the material mixer includes three-phase mixture and the static mixing connected with the three-phase mixer
Device；
Solution of the part containing amine preparation and high pressure gas are first mixed to get intermediate gas-liquid to mix in three-phase mixer
Object is closed, then the intermediate gas-liquid mixture is passed through to the solution progress for containing amine preparation in static mixer with remainder
It is mixed to get the high pressure solution gas mixed liquor；
Preferably, the volume of the intermediate gas-liquid mixture contains the volume of the solution of amine preparation for the remainder
20%-70%.
Further, the three-phase mixer is connected in parallel for N number of and N number of three-phase mixer；
Wherein, N >=2 and N are natural number.
A kind of use of above-mentioned de- amine method of purification or above-mentioned de- amine equipment for purifying in potash fertilizer production exhaust gas sodium chloride refines
On the way.
Compared with the prior art, the present invention has the advantages that：
De- amine method of purification provided by the invention is to be passed through high pressure gas in the solution containing amine preparation to obtain high pressure
Then high pressure solution gas mixed liquor is carried out low pressure release by molten gas mixed liquor.After low pressure discharges, the gas in high pressure solution gas mixed liquor
Body forms microbubble after pressure reduction, and amine preparation is easy to adhere to micro-bubble, therefore, when microbubble floating and solution
The de- amine process of solution can be thus achieved after separation.De- amine can be realized only by high pressure solution gas and release in this method, has
The advantages of technological process is relatively easy, high treating effect.It is additional due to being not added in de- amine method of purification provided by the invention
Medicament is only passed through high pressure gas, and institute is more environmentally friendly in this way, and low energy consumption, can significantly reduce old of production.
De- amine equipment for purifying provided by the invention is realized using physical mixture and is passed through in the solution containing amine preparation
High pressure gas, the low pressure for realizing high pressure solution gas mixed liquor using release device discharge, and the device structure is simple, and operability is strong,
It disclosure satisfy that the refined requirement of attached production sodium chloride in potash fertilizer production.De- amine equipment for purifying high treating effect provided by the invention, fortune
Row is stablized, and low energy consumption, can be applicable in chemical industry, environmental protection, chemical industries.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of de- amine equipment for purifying that the embodiment of the present invention 1 provides.
Icon：1- three-phase mixers；2- static mixers；3- takes off amine tower；31- feed pipes；32- nozzles；33- is scraped
Foam device；34- collecting boards；The first collecting tanks of 35-；36- foam drainage mouths；37- collecting tanks；38- exhaust-control valves；
39- liquid discharge outlets, the second collecting tanks of 40-.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
One aspect of the present invention provides a kind of de- amine method of purification, and high pressure is passed through in the solution containing amine preparation
Gas obtains high pressure solution gas mixed liquor, and the high pressure solution gas mixed liquor generates the micro- gas for being adsorbed with amine preparation after low pressure discharges
Bubble, the microbubble floating detach the de- amine of completion with solution.
De- amine method of purification provided by the invention is to be passed through high pressure gas in the solution containing amine preparation to obtain high pressure
Then high pressure solution gas mixed liquor is carried out low pressure release by molten gas mixed liquor.After low pressure discharges, the gas in high pressure solution gas mixed liquor
Body forms microbubble after pressure reduction, and amine preparation is easy to adhere to micro-bubble, therefore, when microbubble floating and solution
The de- amine process of solution can be thus achieved after separation.De- amine can be realized only by high pressure solution gas and release in this method, has
The advantages of technological process is relatively easy, high treating effect.It is additional due to being not added in de- amine method of purification provided by the invention
Medicament is only passed through high pressure gas, and institute is more environmentally friendly in this way, and low energy consumption, can significantly reduce old of production.
High pressure and low pressure in the present invention are a relative concepts, i.e., after gas mixes under high pressure effect with liquid,
It is discharged in the environment of relatively low pressure, then the gas release under original high pressure grows up to form microbubble.It is understood that high pressure and
Low pressure can not limit specific numerical value, as long as the generation of microbubble can be realized by the adjustment of pressure.If low pressure is selected as
Normal pressure state, then high pressure can be selected as 0.8MPa-1.2MPa.
High pressure solution gas mixed liquor generates the microbubble for being adsorbed with amine preparation after low pressure discharges, and remaining solution can be with
It is flowed outwardly in a manner of jet stream, droplet can also be formed and detached with microbubble.
In certain embodiments of the present invention, the pressure differential of high pressure and low pressure is：0.7MPa-1.1MPa.
In certain embodiments of the present invention, first high pressure gas is passed through in part is containing the solution of amine preparation to obtain
Then the intermediate gas-liquid mixture with the solution that remainder contains amine preparation mix by intermediate gas-liquid mixture
To the high pressure solution gas mixed liquor.The high pressure solution gas mixed liquor obtained by using this method, the gas-liquid mixed uniformity is more preferable, and
And the amine preparation in liquid can be made fully to be contacted with gas.
In certain embodiments of the present invention, the high pressure solution gas mixed liquor generates drop and absorption after low pressure discharges
There is the microbubble of amine preparation, the microbubble floats completes de- amine with the drop separation.High pressure solution is made by low pressure release
Gas mixed liquor forms drop and microbubble, is more advantageous to the separation of microbubble and liquid substance.
In certain embodiments of the present invention, the drop is atomized drop.
In certain embodiments of the present invention, the gas in the high pressure gas is selected from air, helium or nitrogen.In order to
The microbubble to be formed is made, which to be easier to floating, can select air, helium or nitrogen.
The second aspect of the invention provides a kind of de- amine equipment for purifying, is mixed including material mixer and with the material
The release device of object connection is closed, the high pressure solution gas mixed liquor containing amine preparation in the material mixer is low through release device
The microbubble for being adsorbed with amine preparation is generated after pressure release, the microbubble floating detaches the de- amine of completion with solution.
De- amine equipment for purifying provided by the invention is realized using physical mixture and is passed through in the solution containing amine preparation
High pressure gas, the low pressure for realizing high pressure solution gas mixed liquor using release device discharge, and the device structure is simple, and operability is strong,
It disclosure satisfy that the refined requirement of attached production sodium chloride in potash fertilizer production.De- amine equipment for purifying high treating effect provided by the invention, fortune
Row is stablized, and low energy consumption, can be applicable in chemical industry, environmental protection, chemical industries.
In certain embodiments of the present invention, the release device includes deammoniation tower and is set in the deammoniation tower
Release, the material mixer are connected with the release.
Low pressure release is carried out in deammoniation tower, the microbubble discharged from release can float in the upper of deammoniation tower
Portion space, liquid substance collect after sinking in the bottom of deammoniation tower, are more advantageous to the collection of microbubble and solution.
In certain embodiments of the present invention, the release is nozzle, and the nozzle is atomizer.By using
Nozzle, especially atomizer, high pressure solution gas mixed liquor can form microbubble and atomized drop after nozzle discharges, more favorably
In the separation of microbubble and liquid substance.
Wherein, the quantity of nozzle can be one, but in order to improve formation efficiency, the quantity of nozzle is set as being M,
M >=3 and M are natural number, such as the quantity of nozzle can be 6-12.Multiple nozzles are evenly arranged by star arrangement mode.
In certain embodiments of the present invention, angle is 50-70 ° between the injection direction and horizontal plane of the nozzle,
In favor of the separation of microbubble and liquid substance.
In certain embodiments of the present invention, the collecting board for adsorbing the microbubble is equipped in the deammoniation tower,
The collecting board is located at the top of the release.Microbubble floating is adsorbed on collecting board, when the thickness of the microbubble of absorption
After degree reaches certain numerical value, can manually it remove.
In certain embodiments of the present invention, it is equipped in the deammoniation tower and scrapes foam device, the foam device of scraping being capable of edge
The microbubble movement collected plate surface promotion and be adsorbed on the collecting board.Correspondingly, use can be set in deammoniation tower
In the first collecting tank for collecting the microbubble, the foam device of scraping will be described in the microbubble that be adsorbed on collecting board push-in
In first collecting tank, foam drainage mouth can be equipped in the described first collection trench bottom.
Foam device is scraped by setting, can realize the automatic function of striking off microbubble.For example, scraping foam device can include scraping
Plate and the driving mechanism that the scraper plate is pushed to be moved along plate surface is collected, scraper plate edge under the action of driving mechanism are collected plate surface and are moved
Dynamic, by outside the de- amine tower of microbubble push-in of collecting board adsorption or in the first collecting tank, the microbubble in the first collecting tank steeps
Foam is collected by first outside the de- amine tower of foam drainage mouth discharge of trench bottom setting.
In certain embodiments of the present invention, the bottom of the deammoniation tower is equipped with collecting tank；The collecting tank can be circle
Conical hopper structure, the sump bottom are equipped with exhaust-control valve.Collect through the liquid that release releases in collecting tank, it should
Liquid has as taken off the purification of amine.The discharge set by the accumulation of certain time, purification from sump bottom
The de- amine tower of control valve discharge.
In certain embodiments of the present invention, the deammoniation tower is equipped with overflow discharge unit, the overflow discharge unit
Liquid discharge outlet and the second collecting tank including being used for overflow.
Liquid discharge outlet is set between release and collecting tank, when the solution level in collecting tank is stepped up to liquid arranging
When putting at mouth, solution flows into the second collecting tank from liquid discharge outlet.Staff flows out feelings according to the liquid in the second collecting tank
The exhaust-control valve that condition opens sump bottom setting carries out the solution in collecting tank interim collection.
In certain embodiments of the present invention, triangular-notch weir is equipped in second collecting tank, overflow liquid level is located at triangle
At (1/2-2/3) of weir sawtooth height.Triangular-notch weir can be zigzag triangular-notch weir, so that liquid uniformly flows out.
In certain embodiments of the present invention, the material mixer includes three-phase mixture and is mixed with described three
The static mixer of device connection；First solution of the part containing amine preparation is mixed to get with high pressure gas in three-phase mixer
Then the intermediate gas-liquid mixture is passed through in static mixer and contains amine preparation with remainder by intermediate gas-liquid mixture
Solution carry out being mixed to get the high pressure solution gas mixed liquor.
The dissolving of high pressure gas in the solution can be completed, while generate bubble nucleus, and be conducive to using three-phase mixer
Amine preparation forms hollow ultralightization flco with gas, and amine preparation is made to be come into full contact with gas.
The Homogenization of mixture can be realized using static mixer, makes to be dissolved in the gas in solution and uniformly divides
It dissipates.
In certain embodiments of the present invention, the volume of the intermediate gas-liquid mixture contains amine for the remainder
The 20%-70% of the volume of the solution of class preparation.
In certain embodiments of the present invention, the three-phase mixer connects for N number of and N number of three-phase mixer parallel connection
It connects；Wherein, N >=2 and N are natural number.For example, three-phase mixer is 4-10.
The third aspect of the invention provides a kind of above-mentioned de- amine method of purification or above-mentioned de- amine equipment for purifying in potash fertilizer
Produce the purposes during exhaust gas sodium chloride refines.
Embodiment 1
As shown in Figure 1, the present embodiment is a kind of de- amine equipment for purifying, connect comprising three-phase mixer 1 and with three-phase mixer 1
Logical static mixer 2, static mixer 2 are connected by feed pipe 31 with de- amine tower 3.High pressure solution gas in static mixer 2
Mixed liquor forms microbubble and liquid mist after the release of nozzle 32, and microbubble is adsorbed in after floating on collecting board 34.Work as absorption
When microbubble in 34 surface of collecting board reaches certain thickness, bubble of 33 setting in motion of foam device will be adsorbed on collecting board is scraped
Foam is pushed into the first collecting tank 35, into the foam in the first collecting tank 35 from the foam drainage pipe being connect with foam drainage mouth 36
The de- amine tower of discharge.Liquid mist falls downward enters the collecting tank 37 of de- 3 bottom of amine tower, when the liquid level in collecting tank 37 by
When gradually rising to liquid discharge outlet 39, the liquid in collecting tank 37 flows into the second collecting tank 40 from liquid discharge outlet 39.
Wherein, the quantity of nozzle is 10, and nozzle is uniformly distributed on star arrangement branch pipe.It is filled out inside static mixer
Fill the flight of left handed twist and the flight of right torsion.Nozzle 32 is welded in the feed pipe 31 of de- amine tower 3.Scrape the machine of foam device 33
Frame is fixedly connected by flange with de- amine tower.
Embodiment 2
The present embodiment is a kind of de- amine method of purification of potash fertilizer production exhaust gas sodium chloride, is provided in this method with embodiment 1
De- amine equipment for purifying carry out de- amine purification.Detailed process is as follows：
Compressed air and saturated brine are subjected to molten gas process in three-phase internal mixer first and obtain molten gas brine, then
Molten gas brine and salt slurry raw material are realized in static mixer is uniformly mixed to get high pressure solution gas mixing saline solution, the high pressure solution later
Gas mixing saline solution carries out the microbubble and liquid mist that release forms adherency amine preparation, microbubble by feed pipe at nozzle
It floats and the refined de- amine process for realizing brine is detached with liquid mist.
Wherein, the salt in salt used in saturated brine and salt slurry raw material is the potash fertilizer production exhaust gas containing amine preparation
Sodium chloride.The volume of saturated brine is the 20%-70% of salt slurry raw material volume.
In the present embodiment, release area handles spatial load forecasting in 15m3/m2H-25m3/m2H scrapes the driving in foam device
The rotating speed of mechanism is controlled in 3rpm-5rpm, and liquid upflow velocity is controlled in 0.01m/s-0.07m/s in overflow unit.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of de- amine method of purification, which is characterized in that be passed through high pressure gas in the solution containing amine preparation and obtain high pressure
Molten gas mixed liquor, the high pressure solution gas mixed liquor generate the microbubble for being adsorbed with amine preparation, micro- gas after low pressure discharges
Bubble, which floats, detaches the de- amine of completion with solution.
2. de- amine method of purification according to claim 1, which is characterized in that first in part containing in the solution of amine preparation
It is passed through high pressure gas and obtains intermediate gas-liquid mixture, the intermediate gas-liquid mixture and remainder are then contained into amine preparation
Solution carry out being mixed to get the high pressure solution gas mixed liquor；
Preferably, the high pressure solution gas mixed liquor generates drop after low pressure discharges and is adsorbed with the microbubble of amine preparation, institute
Microbubble is stated to float and the de- amine of drop separation completion；
Preferably, the drop is atomized drop；
Preferably, the gas in the high pressure gas is selected from air, helium or nitrogen.
A kind of 3. de- amine equipment for purifying, which is characterized in that the release connected including material mixer and with the mixtures of materials
Device, the high pressure solution gas mixed liquor containing amine preparation in the material mixer generate suction after the release of release device low pressure
With the microbubble of amine preparation, the microbubble floating detaches the de- amine of completion with solution.
4. de- amine equipment for purifying according to claim 3, which is characterized in that the release device includes deammoniation tower and setting
Release in the deammoniation tower, the material mixer are connected with the release；
Preferably, the release is nozzle；
Preferably, the nozzle is atomizer；
Preferably, the nozzle is M a, and M >=3 and M are natural number.
5. de- amine equipment for purifying according to claim 4, which is characterized in that be equipped in the deammoniation tower described for adsorbing
The collecting board of microbubble, the collecting board are located at the top of the release；
Preferably, it is equipped in the deammoniation tower and scrapes foam device, the foam device of scraping can push absorption along the collection plate surface
In the microbubble movement on the collecting board；
Preferably, the first collecting tank for collecting the microbubble is equipped in the deammoniation tower, the foam device of scraping will adsorb
It is pushed into first collecting tank in the microbubble on the collecting board；
Preferably, described first trench bottom is collected equipped with foam drainage mouth.
6. de- amine equipment for purifying according to claim 4, which is characterized in that the bottom of the deammoniation tower is equipped with collecting tank；
Preferably, the collecting tank is conical funnel structure, and the sump bottom is equipped with exhaust-control valve.
7. de- amine equipment for purifying according to claim 4, which is characterized in that the deammoniation tower is equipped with overflow discharge unit,
The overflow discharge unit includes the liquid discharge outlet and the second collecting tank for overflow；
Preferably, triangular-notch weir is equipped in second collecting tank；
Preferably, overflow liquid level is located at (1/2-2/3) of triangular-notch weir sawtooth height.
8. amine equipment for purifying is taken off according to claim 3-7 any one of them, which is characterized in that the material mixer includes
Three-phase mixture and the static mixer connected with the three-phase mixer；
Solution of the part containing amine preparation and high pressure gas are first mixed to get intermediate gas-liquid mixture in three-phase mixer,
Then the intermediate gas-liquid mixture is passed through to the solution for containing amine preparation with remainder in static mixer mix
Obtain the high pressure solution gas mixed liquor；
Preferably, the volume of the intermediate gas-liquid mixture contains the volume of the solution of amine preparation for the remainder
20%-70%.
9. de- amine equipment for purifying according to claim 8, which is characterized in that the three-phase mixer is N number of and N number of described
Three-phase mixer is connected in parallel；
Wherein, N >=2 and N are natural number.
It is set 10. the de- amine method of purification or claim 3-9 any one of them described in a kind of claims 1 or 2 take off amine purification
The standby purposes in potash fertilizer production exhaust gas sodium chloride refines.
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| CN201810072084.8A CN108249461A (en) | 2018-01-25 | 2018-01-25 | De- amine method of purification and equipment and application thereof |
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| CN201810072084.8A CN108249461A (en) | 2018-01-25 | 2018-01-25 | De- amine method of purification and equipment and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837260A (en) * | 2023-02-23 | 2023-03-24 | 大庆华理生物技术股份有限公司 | Oleic acid amidation deaminizing recovery device |
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