CN2541436Y - Nano calcium carbonate synthetic reactor - Google Patents
Nano calcium carbonate synthetic reactor Download PDFInfo
- Publication number
- CN2541436Y CN2541436Y CN 02211817 CN02211817U CN2541436Y CN 2541436 Y CN2541436 Y CN 2541436Y CN 02211817 CN02211817 CN 02211817 CN 02211817 U CN02211817 U CN 02211817U CN 2541436 Y CN2541436 Y CN 2541436Y
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- motor
- calcium carbonate
- barrel
- nano
- cone
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Abstract
A nanometer calcium carbonate compound reactor belongs to the chemical industry technical field, comprising a motor, a reactor, a blender and an air supply duct, wherein the upper part of the actor is a cylindrical barrel, and the lower part is a cone; the bottom end of the cone is provided with a discharge opening; the upper end of the actor barrel is provided with a barrel cover; a motor flange pedestal is disposed on the barrel cover; the motor is fixed on the flange pedestal; the blender is arranged inside the barrel; the upper end of a blending shaft is connected with a motor shaft, and the lower end of the blending shaft is equipped with a blending impeller; the inner wall of the tapered barrel is provided with a ring charging duct; and micro-foam generators are arranged on the ring charging duct at intervals. The utility model has stable operation, simple manufacturing technique and low cost, and the micro-foam generators are not easy to block and can largely reduce the energy consumption.
Description
Affiliated technical field
The utility model belongs to chemical technology field
Background technology
At present, being used for nano-calcium carbonate synthetic equipment mainly contains following several:
(1) this equipment of common stirring synthesizer adopts common whipping appts.During work, milk of lime is pumped into steel basin, feed carbon dioxide from the bottom, the two reacts in synthesizer, generates nano-calcium carbonate.The energy consumption height of this equipment, processing condition are difficult to control, and product granularity is inhomogeneous, and particle diameter is thicker, and particle size distribution compares broad; Production efficiency is low, and the gas-to-liquid contact difference carburizing reagent time is long, and reaction once needs 2-4 hour usually; In reaction process, be easy to generate the parcel phenomenon, finally cause the product accumulation of salt in the surface soil, influence quality product; Gas consumption is bigger.Common stirring synthesizer is a synthesis device commonly used in the present nano-calcium carbonate industrial production.
(2) synthesizer of spraying continuously
The spraying synthesizer is at the top of synthesizer the conical hollow pressure nozzle to be installed continuously, refining milk of lime is under the effect of conical hollow pressure nozzle, be atomized into the drop that diameter is 0.1mm, drench from the top equably down, the carbon dioxide that enters with the bottom reacts, and makes nano-calcium carbonate.The investment of this apparatus and process is high, the pipeline complexity, and the operational administrative difficulty is big, and hollow pressure formula nozzle stops up in the process easily last the work, uses less at present.
(3) hypergravity synthesizer
This equipment is developed by Beijing University of Chemical Technology.Because its technical know-how, up to the present its internal structure also can't be learnt.This equipment mainly is the high speed rotating that utilizes equipment, forms the super gravity field than big hundreds of times and even thousands of times of earth gravity field, finishes the reaction of milk of lime and carbonic acid gas with this understanding.The nano-calcium carbonate narrow particle size distribution of this device fabrication, the carburizing reagent time is short.But investment in production equipment is big, and simultaneously because it needs high speed rotating in process of production, so the production scene need be provided with safeguard procedures, otherwise can cause potential safety hazard.
(4) high-shear nano-calcium carbonate synthesis reactor
This equipment is Northeastern University development, gain the national patent, and the patent No. is: ZL01241020.9.Used mulser in this equipment first, through the producer gas generator and the granularity homogenizer of special transformation, use this equipment synthetic nano-calcium carbonate product granularity little and particle size distribution is narrow, quality is high; This equipment has significantly been strengthened the mass transfer process between the solution-air, has improved the utilization ratio of gas, and output is big, the production efficiency height, the carburizing reagent time is short, stable equipment operation, stir, simple to operate, easy to maintenance, but the energy consumption of this equipment is higher.
Summary of the invention
In order to overcome the shortcoming that existing nano-calcium carbonate synthesis device exists, the utility model provides a kind of and can cut down the consumption of energy, raises the efficiency, further improves structure, reinforcement gas---the nano-calcium carbonate synthesis reactor of liquid mass transfer process of bubble generator.
The utility model is made up of motor, reactor, agitator, steam line, microvesicle generators etc.Reactor top is the garden column-shaped barrel, the bottom is a cone, in the cone bottom flange discharge gate is housed, in the reactor shell upper end cover is housed, the motor flange base is housed on cover, motor is fixed on the flange base, the upper end that is contained in the intravital agitator stir shaft of tube is connected with motor shaft, agitator is equipped with common paddle wheel and has the gas ducting open holes in cylindrical shell bottom cone one side in the lower end of stir shaft, annular inflatable tube is contained on the conical shell inwall, at interval 2-8 microvesicle generators is housed on the annular inflatable pipeline, microvesicle generators communicates with gas ducting.
The utlity model has following outstanding feature:
(1) under the prerequisite that does not influence mixing effect, whipping appts adopts general mixer, greatly reduces
The energy consumption of nano-calcium carbonate synthesis reactor, the reduction amplitude is the highest can be reached more than 80%;
(2) operation of equipment is stable, the gas microbubbles producer is difficult stops up, and what help producing normally carries out;
(3) device manufacturing process is simple, cost is low, is easy to suitability for industrialized production and easy to maintenance.
Nano-calcium carbonate constant product quality, the crystal formation that application the utility model is produced is good, quality is high.Use this equipment synthetic cube nano-calcium carbonate calcium product median size to be 40-60nm, maximum particle diameter 85nm; Chain-shaped Nano-grade Calcium Carbonate product single particle median size is 20-40nm, maximum particle diameter 60nm, and length-to-diameter ratio is 5-20;
Strengthen solution-air, the contact probability between gas-solid greatly, improved the utilization ratio of gas; Gas usage reduces 10-25% than miscellaneous equipment;
The carburizing reagent time significantly shortens, and production efficiency of equipment significantly improves; The carburizing reagent time shortens 4-9 doubly, and production efficiency of equipment improves 15-50%.
The utility model is mainly used in the synthetic of nano-calcium carbonate, also can be used for the production and the technological transformation of fine particle calcium carbonate, simultaneously in light industry, oil and medicine and other fields, is widely used in mass transfer limited gas-liquid reaction or gas absorption process.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1 motor, 2 reactor shells, 3 stir shafts, 4 paddle wheels, 5 gas-filled valves, 6 microvesicle generators, 7 discharge gates, 8 flanges, 9 covers.
Embodiment
As shown in drawings: reactor shell of the present utility model 2 tops are the garden cylindricality, the bottom is taper, in cylindrical shell 2 bottoms discharge gate 7 is housed, in cylindrical shell 2 upper ends cover 9 is housed, motor flange base 8 is housed on cover 9, motor 1 is fixed on the motor flange base 8, the upper end that is contained in the agitator stir shaft 3 in the cylindrical shell 2 is connected with the axle of motor, in the lower end of stir shaft 3 paddle wheel 4 is housed, have the gas ducting open holes in cylindrical shell 2 bottom cones one side, annular inflatable tube 5 is contained on the taper barrel of cylindrical shell 2, and 2-8 microvesicle generators 6 is housed on annular inflatable pipeline 5 at interval.Use the utility model synthesis of nano lime carbonate:
The Wingdale raw material is selected from Inner Mongol Chifeng area, and calcining earlier generates calcium oxide, gets an amount of calcium oxide then, digest with hot water, to lime milk solution carry out removal of impurities, refining after, be mixed with Ca (OH)
2Solution is put into synthesis reactor, and begins to stir, and feeds carbon dioxide then and begins carburizing reagent.The omnidistance reaction times is 30min.In the reaction process, stir, stablize, intensity is suitable.Simultaneous test shows that gas usage reduces 10-25%, and the carburizing reagent time shortens 4-9 doubly, and production efficiency improves 15-50% than miscellaneous equipment.Solution is filtered, drying, depolymerization obtains the nano-calcium carbonate calcium product.With transmission electron microscope product is detected, the result shows that the product crystalline form is a cubes, advantages of good crystallization, and particle diameter is 20-85nm, the quality height.
By adding different crystal control agents, utilize this equipment can prepare difform nano-calcium carbonate calcium product.
Through test of many times, show and adopt this equipment synthetic nano-calcium carbonate constant product quality, good crystalline, quality height; Equipment running condition is good, and producer gas generator can not stop up.
Claims (2)
1, a kind of nano-calcium carbonate synthesis reactor, it is characterized in that reactor top is the garden column-shaped barrel, the bottom is a cone, in the cone bottom flange discharge gate is housed, in the reactor shell upper end cover is housed, the motor flange base is housed on cover, motor is fixed on the flange base, the stir shaft of agitator upper end is connected with motor shaft in the cylindrical shell, paddle wheel is equipped with in the lower end of stir shaft, cone one side has the gas ducting open holes in the cylindrical shell bottom, and annular inflatable tube is contained on the conical shell inwall, and microvesicle generators is housed on the annular inflatable pipeline at interval.
2, nano-calcium carbonate synthesis reactor according to claim 1 is characterized in that the microvesicle generators of installing at interval is 2-8 on the annular inflatable pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211817 CN2541436Y (en) | 2002-05-20 | 2002-05-20 | Nano calcium carbonate synthetic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211817 CN2541436Y (en) | 2002-05-20 | 2002-05-20 | Nano calcium carbonate synthetic reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541436Y true CN2541436Y (en) | 2003-03-26 |
Family
ID=33691630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211817 Expired - Fee Related CN2541436Y (en) | 2002-05-20 | 2002-05-20 | Nano calcium carbonate synthetic reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541436Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583484A (en) * | 2012-02-23 | 2012-07-18 | 池州凯尔特纳米科技有限公司 | Carbonization kettle and method for preparing nanometer calcium carbonate by using same |
| CN102897815A (en) * | 2012-11-08 | 2013-01-30 | 广西华纳新材料科技有限公司 | Nano-calcium carbonate carbonization reaction kettle |
| CN105602289A (en) * | 2016-02-24 | 2016-05-25 | 湖南磊鑫新材料科技有限公司 | Modified heavy calcium carbonate special for paint and preparation method and device thereof |
-
2002
- 2002-05-20 CN CN 02211817 patent/CN2541436Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583484A (en) * | 2012-02-23 | 2012-07-18 | 池州凯尔特纳米科技有限公司 | Carbonization kettle and method for preparing nanometer calcium carbonate by using same |
| CN102583484B (en) * | 2012-02-23 | 2014-07-16 | 池州凯尔特纳米科技有限公司 | Carbonization kettle and method for preparing nanometer calcium carbonate by using same |
| CN102897815A (en) * | 2012-11-08 | 2013-01-30 | 广西华纳新材料科技有限公司 | Nano-calcium carbonate carbonization reaction kettle |
| CN102897815B (en) * | 2012-11-08 | 2014-08-13 | 广西华纳新材料科技有限公司 | Nano-calcium carbonate carbonization reaction kettle |
| CN105602289A (en) * | 2016-02-24 | 2016-05-25 | 湖南磊鑫新材料科技有限公司 | Modified heavy calcium carbonate special for paint and preparation method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030326 Termination date: 20100520 |