CN2885831Y - Reactor for synthesizing superfine calcium carbonate - Google Patents
Reactor for synthesizing superfine calcium carbonate Download PDFInfo
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- CN2885831Y CN2885831Y CN 200520125621 CN200520125621U CN2885831Y CN 2885831 Y CN2885831 Y CN 2885831Y CN 200520125621 CN200520125621 CN 200520125621 CN 200520125621 U CN200520125621 U CN 200520125621U CN 2885831 Y CN2885831 Y CN 2885831Y
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- calcium carbonate
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Abstract
This unity model discloses a trickle calcium carbonate synthesized apparatus. The technical project of this apparatus is that on the existent carbonization device shell, a generating device is designed to form magnetic field or electric field and magnetic field and electric field together or alternating electromagnetic field in the carbonization reaction zone within the shell. The utility model creates conditions for accelerating the homogeneous production of calcium carbonate crystal nucleus and particle micronizing, and controlling the grain diameter of ultimate product within 100 nm. This is a key technical measure in the nanometer calcium carbonate production, simultaneously efficiently accelerating the reaction ratio of the calcium carbonate, and shortening the carbonizing time.
Description
Technical field
The utility model is a kind of fine calcium carbonate synthetic reaction device.
Background technology
Lime carbonate is a kind of important inorganic powder material, progress along with lime carbonate miniaturization and process for treating surface, make calcium carbonate product by single filled-type to customizations, become more meticulous, the functionalization direction develops, people are increasing to the demand of subparticle lime carbonate, for example, people have had increasing needs to nanometer grade calcium carbonate.Nano-calcium carbonate is widely used in coating, plastics, rubber, tackiness agent, papermaking, printing ink, car paint, makeup and medicine and other fields.
At present, generally adopt the bubbling carbonizing legal system to be equipped with subparticle lime carbonate both at home and abroad, it is to contain CO
2Gas feed Ca (OH) be housed
2Slurries with or without finishing carburizing reagent in the bubble tower of agitator or the retort, by the refrigeration control reaction temperature with add the preparation that additives such as dispersion agent, crystal formation control agent are realized fine calcium carbonates.Because the ununiformity that gas phase distributes causes the alternate interface contact area of gas, liquid, solid little, mass transfer velocity is slow, it is poor that microcosmic mixes, product particle is thin inadequately, and generally at 0.1 μ m～several μ m, size distribution is inhomogeneous, dispersiveness and stability are also poor, be difficult to prepare high-grade nano level product, carburizing reagent is for up to a few hours, and batch production efficient is low, small scale, energy consumption is big.
Summary of the invention
The purpose of this utility model is: design a kind of synthetic reaction device of producing fine calcium carbonate, particularly the synthetic reaction device of preparation subparticle lime carbonate under electromagnetic field, ultrasonic field synergy condition.
The technical solution of the utility model is to be provided with on the shell of existing carbonization mechanism that the zone of carburizing reagent in the enclosure forms magnetic field or electric field or magnetic field and electric field is common or the generating mechanism of alternating electromagnetic field.
Electromagnetic field to the influence of carburizing reagent is: crystallization rate increases substantially.Contain Ca (OH)
2Liquid in various ion (Ca
2+, CO
3 2-, OH
-, H
+, HCO
3 -), the effect that will be subjected to lorentz's force when all kinds of charged particle is flowed through magnetic field produces motion (magnetophoresis), in electric field, be subjected to the effect of electrical forces to produce motion (electrophoresis), polar molecule produces in alternating electromagnetic field and rotatablely moves, these motions all have the molecule agitation effects, this has greatly strengthened based on microcosmic diffusion, mixing and mass transfer process on ion, the molecular scale, cause the increase of mass transfer coefficient and interfacial area, accelerated the alternate rate of mass transfer of gas, liquid, solid, improved Ca (OH)
2Dissolution rate in liquid film and CO
2Absorption rate has overcome the influence of liquid-film resistance to reaction whole process speed, makes Ca
2+And CO
3 2-Degree of supersaturation increase, form a lot of reactive centers.
Because the effect of electromagnetic field, the association macromolecular mass structure of water wrecks, be cracked into subset, this energy barrier that helps between two equilibrium theory of tide of ion migration reduces, ionigraphic mobility thereby increase, the interionic reversing motion is (with f change of electromagnetic field frequency direction) violent collision mutually continually repeatedly, has improved Ca
2+And CO
3 2-Realize the probability of " effective collision ", connect the CaCO that forms some amount with enough stability
3" ionic association body ", thus constituted a large amount of crystallization nucleis, and this is similar to the effect that adds crystal seed.
In the carburizing reagent along with the rising of carbonation rate, the viscosity of slurries can increase gradually, when the magnetic flux phi of externally-applied magnetic field is appropriate, the increase of interior energy, surface tension and the viscosity factor of water are reduced, can weaken solution viscosity to a certain extent and increase the disadvantageous effect of bringing, improve crystallization condition, help crystalline material in the metastable phase, thereby accelerate crystallisation process by the transformation of liquid phase to solid phase.
Water molecules and associated complex thereof, microscopic particles such as hydrated ion, all carrying out continual vibratory drive, and corresponding to certain energy level, when the time spent of doing that is subjected to electromagnetic field optimum frequency field, just may resonate the of short duration effect of this resonance effect, the activation energy of crystallisation process in can the reduction system has been strengthened the ability of liquor capacity intercrystalline.
Enter carbonization latter stage, CO in the gas phase
2Concentration constant, Ca in the solution (OH)
2(s) the concentration very end (＜1%), Ca (OH)
2The liquid-solid interface area of solid phase is much smaller than CO
2The liquid-gas interface area, add Ca (OH)
2The lytic activity of particle is poor, and dissolution rate significantly reduces, the very fast decline of pH value, and the late phase reaction environment tends to weakly alkaline, CO in addition gradually
2Absorption, dissolving, ionization only depend on the dissociation reaction of hydration reaction and carbonic acid to generate CO
3 2-Speed slower, this all becomes the key (the later stage carbonization time accounts for the over half of total carbonization time) of restriction late phase reaction speed, because Electromagnetic Environmental Effect has improved Ca (OH)
2Dissolution rate in liquid film, OH
-Ion has strengthened the ability of breaking through liquid-film resistance under the effect of magnetic field, electrical forces, enter in the liquid phase, until entering CO
2Liquid film will advantageously promote CO
2Gas dissolving, ionization, diffusion process, thus the speed of later stage carburizing reagent improved greatly.
Electromagnetic field to another influence of carburizing reagent is: be to make the miniaturization of crystallization particle diameter, homogenization, product dispersiveness, the accumulation of salt in the surface soil are able to remarkable improvement.
The magnetization of magnetic field, electric field, polarized action can make atomic polarity strengthen, the split pole effect disappears in strong ionisation region, cohesive force weakens, the result has changed these molecules, ionic out-shell electron cloud distributes and the ionic distortion, destroy interionic electrostatic attraction and changed crystallization condition, this effect equals crystallization rived becomes extremely thin thin layer, and then make its ionic arrange axial consistent with magnetic field, to the calcium carbonate crystal particulate influence be the small crystalchecked of formation dispersive float and be dispersed in the solution.
Water is subjected to electric field, the action of a magnetic field during by electromagnetic field, the water molecules moment of dipole will increase or divide, thereby also increased the polarity of water molecules, the cleaved formation subset of associating macromolecular mass or some single water moleculess, they very easily are adsorbed on the polarity CaCO of harsh one-tenth
3On the nucleus, form water molecules and resultant of reaction CaCO
3The associated molecule group of crystallite.
The solution transverse cutting is in the time in addition, the magnetic field that changes on the space, can cause hysteresis effect to salt quasi-molecule in the aqueous solution and ionic magnetic couple, thereby changed the solvability of salt in water, the mutual affinity of salt quasi-molecule (crystallinity) is weakened, and and the affinity of water molecules increase, this effect has further been strengthened, form the quantity and the stability of the associated molecule group of water molecules and resultant of reaction lime carbonate crystallite, the steric effect of this adsorption layer plays good dissemination to the lime carbonate nucleus, and it is difficult at reactant Ca (OH)
2Surface precipitation (this can effectively alleviate the accumulation of salt in the surface soil phenomenon of calcium carbonate product), and because electrostatic interaction CaCO
3Be difficult to do crystalline ordered arrangement, be difficult for generating heavy crystalline substance, twin and the cohesion of secondary glomerocryst, promptly be difficult to grow into macrocrystal, but, form cotton-shaped polymer, be suspended in the solution in a large number with the loose polymerization of identical static crystallite.
In sum, electromagnetic field is not only highly enriched based on microcosmic diffusion, mixing and mass transfer process on ion, the molecular scale to the influence of carburizing reagent, but also directly influences the formation and the crystalline process of growth of nucleus.Can quicken to generate the nucleus of a large amount of lime carbonate, can not make nucleus grow up to macrocrystal again, and because to make that growth, the coarsening rate of each nucleus are close to identical in this effect even, instantaneous each space that occurs in liquid phase, to the homogenization generation of quickening the lime carbonate nucleus and fine particlesization, for control the finished product particle diameter at 100nm with the interior condition of having created.This is very crucial technical measures in nano-calcium carbonate production.Also accelerate simultaneously the speed of carburizing reagent effectively, shortened carbonization time.
The generating mechanism of the common or alternating electromagnetic field of magnetic field in the utility model or electric field or magnetic field and electric field, specifically can adopt following structure: generating mechanism is included in central authorities of carbonization mechanism are equipped with an outer insulating layer coating by support interior electrode, with the metal shell of the co-axial carbonizing plant of interior electrode be outer electrode, inside and outside electrode is connected with the electromagnetic oscillation producer by concentric cable or is connected with high-voltage D.C. generator by cable.When inside and outside electrode is connected to the output terminal of electromagnetic oscillation producer by concentric cable, just can in shell of the present utility model, form its electric field of alternating electromagnetic field and magnetic field all is distributed in the cross section of tower body, electric field has only E
rComponent, magnetic field has only H
Component.When inside and outside electrode is connected to the output terminal of high-voltage D.C. generator by cable, just can form radial electric field in the shell.When central authorities in the enclosure are provided with magnetic core, coil or magnet are installed on the shell, then can produce magnetic field in the enclosure, in addition, the generation mechanism in electric field and magnetic field can be installed simultaneously, to produce electric field and the coefficient effect in magnetic field.
The carbonization mechanism that reaches described in the utility model can adopt existing bubbling carbonizing mechanism, can also on the shell wall of the bubbling carbonizing of the utility model shell zone, the generating mechanism that produces ultrasonic field be installed, make working process of the present utility model be in magnetic field or electric field or magnetic field and carry out under electric field is common or alternating electromagnetic field acts synergistically with ultrasonic field.This process mainly is to utilize ultrasonic cavitation to supervene intensive shockwave, (1500m/s) and speed per hour to reach 400Km microjet, little acoustic streaming, make the liquid of local tiny area be subjected to violent stirring, mechanical effects such as flow at high speed, speed when making the magnetic field that the liquid movement transverse cutting changes on time, space strengthens, thereby the lorentz's force F=qv * B of the action of a magnetic field on moving charge is also big more, and the magnetic field effect that obviously electromagnetic field is exerted one's influence to carburizing reagent under the synergy of ultrasonic cavitation effect will greatly be strengthened.The specific embodiments that the ultrasonic field generating mechanism is installed: in above-mentioned magnetic field or electric field or electric field and magnetic field is common or the outside of the corresponding metal tower body in alternating electromagnetism field-effect district, one or more groups (for example three groups) ultrasonic field is installed below metal line, every group of ultrasonic field formed by several ultrasonic transducers are in parallel, drive simultaneously by one or several ultrasonic generator, electric energy is converted to acoustic energy and passes to liquid by transverter, produces the intensive cavitation effect.
Use the bubbling carbonizing device carbonization time of the utility model electromagnetic field, the comparable present application of ultrasonic field bubbling carbonizing to shorten 3～6 times, the calcium carbonate granule particle diameter can be controlled in the 100nm, the dispersiveness of product, stability, the accumulation of salt in the surface soil all improves a lot and improve.But desire to shorten significantly carbonization time and the product that obtains more miniaturization, can before electromagnetic field, ultrasonic field bubbling carbonizing, increase the atomizing carbonation process, with regard to the utility model, promptly before electromagnetic field, ultrasonic field bubbling carbonizing mechanism, install atomizing carbonization mechanism additional, its concrete structure can be: above electromagnetic field, ultrasonic field bubbling carbonizing mechanism or a side atomizing carbonization mechanism is arranged, the not complete reaction after the atomizing carbonization contain Ca (OH)
2The spray outlet is led in electromagnetic field, ultrasonic field bubbling carbonizing mechanism inner chamber, in the inner chamber of atomizing carbonization mechanism the atomising mechanism that is connected with liquid and gas inlet pipe is housed.Above-mentioned atomising mechanism can adopt as existing installations such as air-stream spraying, press atomization, centrifugal sprayings.For the air-flow ultrasonic atomizatio carbonation process under effect the utility model employing Electromagnetic Environmental Effect effect of strengthening the atomizing carbonization, promptly with containing CO
2Gas to containing Ca (OH)
2Liquid through air-flow ultrasonic atomizatio mechanism atomizing, its atomization process is: contain CO with the high-pressure pump handle
2Gas feed ultrasonic generating unit in the air-flow ultrasonic atomizer, from the CO that contains of its air outlet ejection
2High velocity air (100～350m/s), load has the ultrasonic wave of certain frequency (40～100) kHz and from the effusive Ca of containing of the liquid-inlet pipe of ultrasonic atomizer (OH)
2The refining liquid flow clash, ultrasonic energy is acted on liquid stream, when ultrasonic frequency band springing is propagated in liquid, the intensive acoustic vibration produces cavatition, make liquid medium generation explosion turn to drop, drop continues to be subjected to acoustic vibration and liquid is atomized into atomic small droplets (50～500nm).Atomizing time both magnetic field or electric field or electric field and magnetic field is common or alternating electromagnetism field-effect effect under carry out carburizing reagent.Like this, need install additional in the carburizing reagent zone in the atomizing carbonization mechanism and form magnetic field or electric field or magnetic field and electric field is common or the generating mechanism of alternating electromagnetic field.
Above-mentioned electromagnetic field, atomizing carbonization mechanism and electromagnetic field, ultrasonic field bubbling carbonizing mechanism can be separate settings, connect by pipeline, pump etc. between them.They also can use same shell, at this moment, its concrete structure is: have between in the bottom of electromagnetic field, atomizing carbonization mechanism and electromagnetic field, the ultrasonic field bubbling carbonizing mechanism and justify under the epicone and the cage of cylinder lower ending opening, mist eliminator is arranged at the top of cage, there is the pneumatic outlet that leads to outside shell its conical top top, the passage or the annular space that have electromagnetic field, atomizing carbonization mechanism to be connected between cage and the shell with electromagnetic field, ultrasonic field bubbling carbonizing mechanism, make between the two-step, though every and communicate.This structure is comparatively simple, and electromagnetic field, atomizing carbonizing apparatus needn't be set in addition, can reduce equipment cost.Leave between it and the shell and can make the Ca (OH) that contains not carbonization
2Spray makes between the two-step by passage or annular space that gravity descends, though every and communicate.
Carbonization of the present utility model mechanism can also adopt electromagnetic field, atomizing carbonizing plant, promptly in the chamber atomising mechanism that is connected with liquid and gas inlet pipe is housed in the enclosure.Identical with aforesaid atomising mechanism, the atomising mechanism here can adopt existing installations such as air-stream spraying, press atomization, centrifugal spraying, and wherein preferred air-flow ultrasonic atomizer when carrying out electromagnetic field, atomizing carbonization, can directly utilize and contain CO
2Gas to containing Ca (OH)
2Slurries atomize, and carry out the carburizing reagent under the Electromagnetic Environmental Effect effect simultaneously.
In addition, for preventing glutinous wall of carbonization and scale formation, at least should the outer casing inner wall of atomizing carbonization mechanism (if use same shell then at metal line with top) or shell in the resin coating of used metalwork outside surface coating corrosion protection, antiscale.Can prevent that like this outer casing inner wall is slow because of drop adheres to the back flow velocity, cause crystal particle diameter to be grown up, and fouling and part come off and enter product and cause size distribution inhomogeneous on inwall, influence the problem of end product quality.
Description of drawings
Fig. 1 is the cross-sectional schematic of embodiment one;
Fig. 2 is the cross-sectional schematic of embodiment two;
Fig. 3 is an air-flow ultrasonic atomizer structural representation;
Among the figure: 1-refining storage tank; 2-refining pump; The ripe slurry discharge nozzle of 3-; The 4-gas distributor; 5-bubbling carbonizing inlet pipe; 6-2
#The internal electrode lead-wire pipe; 7-2
#The outer electrode terminal stud; 8-2
#Interior electrode; 9-2
#Interior electrode suppor; The 10-ultrasonic transducer; The 11-overflow port; The 12-LCL; The 13-mist eliminator; The outlet of 14-bubbling carbonizing tail gas; 15-CO
2Gas transfer pipeline; The 16-high-pressure pump; The 17-air valve; 18-CO
2The gas house steward; 19-air-flow ultrasonic atomizer inlet pipe; 20-1
#The outer electrode terminal stud; 21-1
#Interior electrode; 22-1
#Interior electrode suppor; The 23-mist eliminator; The outlet of 24-atomizing carbonization tail gas; 25-1
#The internal electrode lead-wire pipe; 26-air-flow ultrasonic atomizer; 27-air-flow ultrasonic atomizer liquid-inlet pipe; 28-refining pipeline; The 29-cage; 30-bubbling carbonizing liquid-inlet pipe; 31-liquid slurry transfer pipeline; 32-atomizing carbonization discharge nozzle; 33-liquid slurry relay pump; 34-liquid slurry transfer storage tank, 35-CO
2Gas feed; The 36-ultrasonic generator; 37-CO
2Pneumatic outlet; The 38-web plate.
Y-tank level control meter interface, T-thermometer boss, D-conductivitimeter interface.
Embodiment
Embodiment one:
As shown in Figure 1, present embodiment comprises that electromagnetic field, ultrasonic field bubbling carbonizing mechanism and connection mechanism are between the two arranged at shell and the electromagnetic field, air-flow ultrasonic atomizatio carbonization mechanism, the bottom that are loaded on shell upper.Wherein, the in-house air-flow ultrasonic atomizer 26 of air-flow ultrasonic atomizatio carbonization respectively with refining liquid-inlet pipe 27 and CO
2Inlet pipe 19 connect, the central authorities in atomizing carbonization zone are equipped with 1 by support 22
# Interior electrode 21, shell is for its outer electrode and have 1
#Outer electrode terminal stud 20, two electrodes connect the electromagnetic oscillation generating unit or connect the high voltage direct current generating unit by cable by concentric cable.1
#There is CO after mist eliminator 23 and the atomizing carburizing reagent upper end of interior electrode 21
2Tail gas outlet 24.The connection mechanism of electromagnetic field, air-flow ultrasonic atomizatio carbonization mechanism and electromagnetic field, ultrasonic field bubbling carbonizing mechanism is by being positioned at the cage 29 at shell middle part, it is under the epicone structure of circle and cylinder lower ending opening, leaves between it and the outer casing inner wall and can make the Ca (OH) that contains not carbonization
2Spray makes between the two-step by passage or annular space that gravity descends, though every and communicate, the top of cage 29 also has mist eliminator 13, the reacted CO of bubbling carbonizing is arranged at its top
2Tail gas outlet 14.CO is passed through in tail gas outlet 14
2 Gas transfer pipeline 15, high-pressure pump 16 and air-flow ultrasonic atomizer inlet pipe 19 are connected.The electromagnetic field of outer casing underpart, ultrasonic field bubbling carbonizing mechanism, the central authorities in LCL 12 following bubbling carbonizing zones are equipped with 2 by support 9
#Interior electrode 8, shell is for its outer electrode and have 2
#Outer electrode terminal stud 7, two electrodes connect the electromagnetic oscillation generating unit or connect the high voltage direct current generating unit by cable by concentric cable.Ultrasonic transducer 10 is installed on the outer wall of shell.The gas distributor 4 that is connected with bubbling carbonizing inlet pipe 5 is arranged at the bottom of shell, and ripe slurry discharge nozzle 3 is arranged at the bottom of shell.Middle part LCL 9 tops of present embodiment shell also are provided with overflow port 11, in addition, also are provided with refining storage tank 1, refining pump 2 and refining pipeline 27 and air valve 17.Other metalwork surface-coated in the outer casing inner wall of present embodiment and the shell has the resin coating of corrosion protection, antiscale.
Use the utility model, get proper C aO and digest,, be mixed with certain density Ca (OH) lime milk solution removal of impurities, filtration
2Refining liquid, place refining storage tank 1, through refining pump 2 input air-flow ultrasonic atomizers 26, then from ultrasonic atomizer liquid-inlet pipe 27, (Fig. 3 27) flows out; Electromagnetic field, ultrasonic field bubbling carbonizing react the CO that contains of back effusion liquid level
2Gas, continue to rise and in cage 29, to compile, after mist eliminator 13 demists on cage 29 tops, lead to bubbling carbonizing tail gas outlet 14 outside shell from the cage conical top, enter CO
2 Gas transfer pipeline 15 is used high-pressure pump 16 again, and pressurization back feeds the inlet pipe 19 of the air-flow ultrasonic atomizer 26 of electromagnetic field, atomizing carbonization mechanism, and the air outlet of ultrasonic generating unit (Fig. 3 37) ejection contains CO in the air-flow ultrasonic atomizer then
2High velocity air (280～350m/s), load has the ultrasonic wave of certain frequency (75～100) kHz and from the liquid-inlet pipe of ultrasonic atomizer (Fig. 3 27) the effusive Ca of containing (OH)
2The refining liquid flow clash, refining be atomized into atomic small droplets (50～500nm), elder generation and CO
2Gas also flows to, and another mistake flows to down, the carburizing reagent that under the polarization of electromagnetic field, magnetization effect effect, atomizes, and reacted tail gas is discharged from atomizing carbonization tail gas outlet 24, not the Ca of carbonization (OH) after mist eliminator 23 demists
2Spray descends by gravity, and by the annular space that leaves between cage 29 and the outer casing inner wall, flow automatically to and be gathered into liquid after electromagnetic field, the ultrasonic field bubbling carbonizing mechanism and overflow by gas distributor 4 micropores, and to the CO that rises
2Gas, carry out the bubbling carbonizing reaction under the cavitation effect synergy of polarization, magnetization and the ultrasonic field of electromagnetic field, the refining of finishing carburizing reagent is ripe slurry, is discharged by the ripe slurry discharge nozzle at the bottom of the tower 3, again after filtration, postprocessing working procedures such as drying, obtain the nano-calcium carbonate calcium product.Median size is little, is about 20～50nm, and the product quality height by controlling every processing parameter and adding different crystal formation control agents, can be produced difform nano-calcium carbonate calcium product.
Embodiment two:
As shown in Figure 2, the whole carbonization technique of present embodiment still is made up of electromagnetic field, atomizing carburizing reagent operation and electromagnetic field, ultrasonic field bubbling carbonizing reaction process, electromagnetic field, air-flow ultrasonic atomizatio carbonization mechanism and electromagnetic field, ultrasonic field bubbling carbonizing mechanism basic structure are identical with embodiment one, here repeat no more, but independent respectively the setting, in addition according to producing needs, compare with embodiment one and different to be: the outer casing bottom in electromagnetic field, air-flow ultrasonic atomizatio carbonization mechanism, also design has not that complete reaction contains Ca (OH) separately
2The discharge nozzle 32 of spray after compiling, more than 12, design has bubbling carbonizing liquid-inlet pipe 30 separately in the LCL of electromagnetic field, ultrasonic field bubbling carbonizing mechanism.Connect with following connection mechanism between the two-step: atomizing carbonization discharge nozzle 32, liquid slurry transfer storage tank 34, liquid slurry relay pump 33, liquid slurry transfer pipeline 31 and bubbling carbonizing liquid-inlet pipe 30.Specifically can directly starch transfer pipeline 31 to atomizing carbonization discharge nozzle 32 by liquid slurry relay pump 33, liquid, perhaps be connected to bubbling carbonizing liquid-inlet pipe 30, still use CO between the inlet pipe 19 of the air-flow ultrasonic atomizer of electromagnetic field, the top tail gas outlet 14 of ultrasonic field bubbling carbonizing mechanism and electromagnetic field, air-flow ultrasonic atomizatio carbonization mechanism by liquid slurry transfer storage tank 34, liquid slurry relay pump 33, liquid slurry transfer pipeline 31
2 Gas transfer pipeline 15 is connected with high-pressure pump 16, constitutes the continuous carbonization process.
Use the utility model implementation process except that following variation, all the other are with embodiment one.In electromagnetic field, atomizing carburizing reagent mechanism after the carburizing reagent, and the Ca of carbonization (OH) not
2Spray descends by gravity, liquid slurry after being pooled at the bottom of the tower, by atomizing carbonization discharge nozzle 32 influent slurry transfer storage tank 34, again by liquid slurry relay pump 33,, enter in the tower from the bubbling carbonizing liquid-inlet pipe 30 on electromagnetic field, ultrasonic field bubbling carbonizing mechanism top by liquid slurry transfer pipeline 31, the bubbling carbonizing reaction is carried out in inflow electromagnetic field, ultrasonic field region downwards, this process, repeats no more at this with embodiment one.After electromagnetic field, the reaction of ultrasonic field bubbling carbonizing, the CO of effusion liquid level
2Gas, continue to rise after mist eliminator 13 demists, enter CO from bubbling carbonizing tail gas outlet 14
2 Gas transfer pipeline 15, use high-pressure pump 16 again, the pressurization back feeds the inlet pipe 19 of the air-flow ultrasonic atomizer 26 of electromagnetic field, atomizing carbonization mechanism, (Fig. 3 37) ejection at a high speed from the air outlet of ultrasonic generating unit again is to the effusive Ca (OH) that contains of air-flow ultrasonic atomizer liquid-inlet pipes 27 in ultrasonic atomizer 26 (Fig. 3 27)
2Refining carry out the air-flow ultrasonic atomizatio, carburizing reagent then atomizes under the polarization of electromagnetic field, magnetization effect effect.This process, repeats no more at this with embodiment one.
Use the utility model to produce nano-calcium carbonate, product cut size is little, is about 20～50nm, narrow distribution range, and the quality height, the carburizing reagent time is short, shortens 5～15 times than legacy equipment, and equipment yield is big, the production efficiency height.By adjust vapour-liquid ratio, gas flow rate, calcium hydroxide concentration, temperature of reaction, electromagnetic frequency and electromagnetic field amount, frequency of ultrasonic and the sound intensity, control refining in electromagnetic field, ultrasonic bubbling carbonizing device the residence time or add dispersion agent, crystal formation control agent etc. and can reach the particle diameter of control calcium carbonate crystal and the purpose of shape.
The utility model is installed tank level control meter interface Y, thermometer boss T, conductivitimeter interface D in the suitable location of device, connect gauge sensor by them, can realize that online computer controls automatically, be the desirable processing technology equipment of large-scale industrial production nano-calcium carbonate powder body material.
The utility model not only is applied to the synthetic of nano-calcium carbonate, and is widely used in light industry, petrochemical industry and the medicine and other fields of mass transfer limited gas, liquid, solid or liquid, liquid, solid reaction.
Claims (10)
1, a kind of fine calcium carbonate synthetic reaction device comprises carbonization mechanism, it is characterized in that: be provided with on the shell of carbonization mechanism that carburizing reagent in the enclosure zone forms magnetic field or electric field or magnetic field and electric field is common or the generating mechanism of alternating electromagnetic field.
2, fine calcium carbonate synthetic reaction device according to claim 1, it is characterized in that: described generating mechanism is included in central authorities of carbonization mechanism are equipped with an outer insulating layer coating by support interior electrode, with the metal shell of the co-axial carbonizing plant of interior electrode be outer electrode, inside and outside electrode is connected with the electromagnetic oscillation producer by concentric cable or is connected with high-voltage D.C. generator by cable.
3, fine calcium carbonate synthetic reaction device according to claim 1 is characterized in that: be provided with magnetic core in the shell, coil or magnet are installed on the shell.
4, according to claim 1 or 2 or 3 described fine calcium carbonate synthetic reaction devices, it is characterized in that: described carbonization mechanism is a bubbling carbonizing mechanism.
5, fine calcium carbonate synthetic reaction device according to claim 4 is characterized in that: the generating mechanism that produces ultrasonic field in the bubbling carbonizing zone is housed on the shell wall of described shell.
6, fine calcium carbonate synthetic reaction device according to claim 4 is characterized in that: atomizing carbonization mechanism is arranged, the in-house not complete reaction of atomizing carbonization contain Ca (OH)
2Spray outlet lead to inner chamber in bubbling carbonizing mechanism, in the inner chamber of atomizing carbonization mechanism the atomising mechanism that is connected with liquid and gas inlet pipe is housed.
7, fine calcium carbonate synthetic reaction device according to claim 6, it is characterized in that: have between atomizing carburizing reagent mechanism and the bubbling carbonizing mechanism and justify under the epicone and the cage of cylinder lower ending opening, mist eliminator is arranged at the top of cage, there is the pneumatic outlet that leads to outside shell its conical top top, the passage that has atomizing carbonization mechanism to be connected with bubbling carbonizing mechanism between cage and the shell.
8, according to claim 1 or 2 or 3 described fine calcium carbonate synthetic reaction devices, it is characterized in that: the atomising mechanism that is connected with liquid and gas inlet pipe is equipped with for atomizing carbonization mechanism in described carbonization mechanism in the shell inner cavity.
9, fine calcium carbonate synthetic reaction device according to claim 8 is characterized in that: atomising mechanism is the air-flow ultrasonic atomizer.
10, fine calcium carbonate synthetic reaction device according to claim 6 is characterized in that: used metalwork outside surface is provided with the resin coating of corrosion protection, antiscale in atomize at least carburizing reagent mechanism shell inwall or the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125621 CN2885831Y (en) | 2005-12-09 | 2005-12-09 | Reactor for synthesizing superfine calcium carbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125621 CN2885831Y (en) | 2005-12-09 | 2005-12-09 | Reactor for synthesizing superfine calcium carbonate |
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| CN2885831Y true CN2885831Y (en) | 2007-04-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058248A (en) * | 2013-01-05 | 2013-04-24 | 刘立文 | Equipment and process for preparing nano calcium carbonate by gypsum |
| CN105268385A (en) * | 2014-07-21 | 2016-01-27 | 宁波市疾病预防控制中心 | Reaction device for preparing magnetic nano material through ultrasound enhancement cooperating with magnetic field induction |
| CN110282646A (en) * | 2019-06-28 | 2019-09-27 | 罗睿智 | It is a kind of to be resonated the calcium carbonate production equipment of anti-sticking wall using thermal property |
-
2005
- 2005-12-09 CN CN 200520125621 patent/CN2885831Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058248A (en) * | 2013-01-05 | 2013-04-24 | 刘立文 | Equipment and process for preparing nano calcium carbonate by gypsum |
| CN103058248B (en) * | 2013-01-05 | 2015-07-08 | 刘立文 | Equipment and process for preparing nano calcium carbonate by gypsum |
| CN105268385A (en) * | 2014-07-21 | 2016-01-27 | 宁波市疾病预防控制中心 | Reaction device for preparing magnetic nano material through ultrasound enhancement cooperating with magnetic field induction |
| CN110282646A (en) * | 2019-06-28 | 2019-09-27 | 罗睿智 | It is a kind of to be resonated the calcium carbonate production equipment of anti-sticking wall using thermal property |
| CN110282646B (en) * | 2019-06-28 | 2021-07-30 | 江西华明纳米碳酸钙有限公司 | Calcium carbonate production equipment utilizing thermal property resonance anti-wall adhesion |
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