CN216359017U - Device for preparing calcium-silicon core-shell structure nano calcium carbonate - Google Patents
Device for preparing calcium-silicon core-shell structure nano calcium carbonate Download PDFInfo
- Publication number
- CN216359017U CN216359017U CN202122629998.XU CN202122629998U CN216359017U CN 216359017 U CN216359017 U CN 216359017U CN 202122629998 U CN202122629998 U CN 202122629998U CN 216359017 U CN216359017 U CN 216359017U
- Authority
- CN
- China
- Prior art keywords
- stirring
- reaction kettle
- stirring tank
- cooling
- modification reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a device for preparing calcium-silicon core-shell structure nano calcium carbonate, which comprises a liquid-liquid Venturi tube, an emulsification pump, a gas-liquid Venturi tube, a modification reaction kettle, a homogenizing stirring tank, a cooling stirring tank, a heat conduction system and a cooling system, wherein the liquid-liquid Venturi tube, the emulsification pump, the gas-liquid Venturi tube, the modification reaction kettle, the homogenizing stirring tank and the cooling stirring tank are sequentially connected; self-flow conveying is formed among the modification reaction kettle, the homogenizing stirring tank and the cooling stirring tank; the heat conduction system is arranged on the modification reaction kettle and can heat the modification reaction kettle; the cooling system is arranged on the cooling stirring tank and can cool the cooling stirring tank. The utility model can well solve the problems of continuity and poor stability of the production and surface modification of the calcium-silicon core-shell structure nano calcium carbonate, complex production process, large energy consumption, uneven product quality and the like, is particularly suitable for industrial automatic control production, and has good economic and social benefits.
Description
Technical Field
The utility model relates to the technical field of nano calcium carbonate production equipment, in particular to a device for preparing calcium-silicon core-shell structure nano calcium carbonate.
Background
Calcium carbonate is an important chemical inorganic powder material, and has the advantages of low price, wide raw materials, no toxicity, no harm and the like, so that the calcium carbonate is widely applied to the industries of plastics, rubber, coatings, printing ink, papermaking and the like, plays the roles of increasing the volume and reducing the cost, and has extremely high economic value. However, the common calcium carbonate can only play a role in increasing the volume and the weight, has poor reinforcing effect, cannot meet the increasing requirements of various industries, and has limited application fields. Therefore, the research and development of the nano calcium carbonate with certain reinforcing effect, controllable crystal morphology and grain size less than 100nm is greatly concerned by technical personnel at home and abroad.
With the continuous and deep research of the nano calcium carbonate, better reinforcing effect can be achieved by controlling the particle size and the shape. However, the calcium carbonate nanoparticles have better reinforcing effect, smaller particle size, larger specific surface area and larger surface energy, so that the calcium carbonate nanoparticles are easy to aggregate together, which causes the problem of poor dispersibility when preparing high molecular polymer/nano calcium carbonate materials, and meanwhile, the calcium carbonate itself can release carbon dioxide in a slightly acidic medium and has higher surface pH value, thereby limiting the application range of the calcium carbonate.
In recent years, domestic enterprises and colleges have also made more researches on the improvement of product reinforcing property, acid resistance and dispersibility in the calcium carbonate surface modification process, and the domestic patent CN1377921C discloses nano CaCO3/SiO2Of particles with a core-shell structureThe preparation method comprises the steps of adding the nano calcium carbonate suspension without surface modification into sodium silicate aqueous solution for ultrasonic dispersion, then adding sulfuric acid dilute solution, and forming the silicon dioxide coated calcium carbonate surface under strong stirring to prepare nano CaCO3/SiO2A method of core-shell structured particles, which uses ultrasonic dispersion for a long time, and is difficult to realize industrial production. Meanwhile, the method uses a large amount of sodium silicate to carry out calcium carbonate coating, sulfuric acid is added in the coating process for reaction, so that the calcium carbonate slurry is easy to be dissolved due to excessive local acidity, and the industrial production is not facilitated; domestic patent CN1974398C discloses silica sol modified nano CaCO3A process for preparing composite particles includes such steps as adding calcium carbonate to silica sol (the aqueous silicon dioxide solution prepared by ion exchange method), ultrasonic dispersing and strong stirring to coat calcium carbonate ions with silica sol. The method has complex process, and the silica sol prepared by the ion exchange method has high production cost, and the product lacks competitiveness and is not beneficial to industrialization; the domestic patent CN101225245 discloses a preparation method of core-shell type silicon dioxide coated nano calcium carbonate, which comprises the steps of adding silicate into carbonized calcium carbonate suspension, stirring and mixing by adopting an emulsification pump, and introducing CO2The method is characterized in that a small amount of silicate is added into calcium carbonate slurry, homogenization is carried out through circulation of an emulsification pump, complete mixing is difficult to achieve, and carbon dioxide is introduced under the condition of incomplete uniform mixing, so that uneven coating is avoided. And the process is intermittent production, and the product difference of different reaction kettles and different positions in the reaction kettles is large, so that the stability of the final product is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for preparing calcium-silicon core-shell structure nano calcium carbonate aiming at the technical problems, can well solve the problems of continuity, poor stability, complex production process, large energy consumption, uneven product quality and the like of the production and the surface modification of the calcium-silicon core-shell structure nano calcium carbonate, is particularly suitable for industrial automatic control production, and has good economic and social benefits.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a device for preparing calcium-silicon core-shell structure nano calcium carbonate comprises a liquid-liquid Venturi tube, an emulsification pump, a gas-liquid Venturi tube, a modification reaction kettle, a homogenizing stirring tank, a cooling stirring tank, a heat conduction system and a cooling system; the liquid-liquid Venturi tube, the emulsification pump, the gas-liquid Venturi tube, the modification reaction kettle, the homogenizing stirring tank and the cooling stirring tank are sequentially connected; self-flow conveying is formed among the modification reaction kettle, the homogenizing stirring tank and the cooling stirring tank; the heat conduction system is arranged on the modification reaction kettle and can heat the modification reaction kettle; the cooling system is arranged on the cooling stirring tank and can cool the cooling stirring tank.
Furthermore, the liquid-liquid Venturi tube is horizontally arranged, the front end of the liquid-liquid Venturi tube is respectively provided with a calcium carbonate slurry access port and a silicate access port, and the rear end of the liquid-liquid Venturi tube is connected with an emulsifying pump; the gas-liquid Venturi tube is vertically arranged, and the upper end of the gas-liquid Venturi tube is respectively provided with a mixed liquid inlet and CO2The lower end of the inlet is connected with the top of the modification reaction kettle; the mixed liquid inlet is connected with the emulsification pump through a pipeline.
Further, the modification reaction kettle is vertically arranged, and a modifier access port is arranged at the top of the modification reaction kettle; a feeding pipeline I is arranged at the modifier access port and extends into the modification reaction kettle and extends downwards to the middle lower part of the modification reaction kettle; a stirring device I is arranged in the modification reaction kettle and comprises a stirring motor, a speed reducer I, a stirring shaft I and a stirrer I; the stirring motor and the speed reducer I are arranged at the center of the top of the modification reaction kettle, the output end of the stirring motor and the speed reducer I is connected with the upper end of the stirring shaft I, and the stirrer I is provided with double layers and is arranged on the stirring shaft I; the stirring motor and the speed reducer I drive the stirring shaft I to rotate, so that the stirrer I is driven to rotate for stirring; and a drain I is arranged at the bottom of the modification reaction kettle.
Further, the heat conduction system comprises a heat conduction oil pipe, a heat conduction oil discharge port and a heat conduction oil access port; the heat conduction oil pipe is arranged on the outer side wall of the modification reaction kettle, and heat conduction oil is filled in the heat conduction oil pipe; the heat-conducting oil inlet is arranged at the lower part of the modification reaction kettle, and the heat-conducting oil outlet is arranged at the upper part of the modification reaction kettle.
Further, still include baffle I, baffle I locate on modified reation kettle's the inside wall.
Further, the homogenizing and stirring tank is vertically arranged, and the upper part of the side wall of the homogenizing and stirring tank is connected with the upper part of the side wall of the modification reaction kettle through a feeding pipeline II; the feeding pipeline II extends into the modification reaction kettle and extends downwards to the bottom of the modification reaction kettle; a stirring device II is arranged in the homogenizing and stirring tank and comprises a stirring motor, a speed reducer II, a stirring shaft II and a stirrer II; the stirring motor and the speed reducer II are arranged at the center of the top of the homogenizing stirring tank, the output end of the stirring motor and the speed reducer II is connected with the upper end of the stirring shaft II, and the stirrer II is provided with double layers and is arranged on the stirring shaft II; the stirring motor and the speed reducer II drive the stirring shaft II to rotate, so that the stirrer II is driven to rotate for stirring.
Further, still include baffle II, baffle II locate on the inside wall of homogeneity agitator tank.
Further, the cooling stirring tank is vertically arranged, a product discharge port is arranged at the upper part of the cooling stirring tank, and the lower part of the cooling stirring tank is connected with the bottom of the homogenizing stirring tank through a feed pipeline III; a stirring device III is arranged in the cooling stirring tank, and comprises a stirring motor, a speed reducer III and a mountain-shaped stirrer; the stirring motor and the speed reducer III are arranged at the center of the top of the cooling stirring tank, the output end of the stirring motor and the speed reducer III is connected with the upper end of the mountain-shaped stirrer, and the mountain-shaped stirrer extends downwards to the bottom of the cooling stirring tank; the stirring motor and the speed reducer III drive the mountain-shaped stirrer to rotate for stirring; and a drain port II is arranged at the bottom of the cooling stirring tank.
Furthermore, the cooling system comprises a cooling water pipe, a cooling water inlet and a cooling water outlet; the cooling water pipe is wound on the outer side wall of the cooling stirring tank, and cooling water is filled in the cooling water pipe; the cooling water inlet is arranged at the lower part of the cooling stirring tank, and the cooling water outlet is arranged at the upper part of the cooling water pipe.
The device is used for preparing the calcium-silicon core-shell structure nano calcium carbonate and comprises the following specific steps:
A. primarily mixing the nano calcium slurry with a silicate solution in a liquid-liquid Venturi tube, and then dispersing and homogenizing at a high speed by using an emulsification pump to obtain mixed slurry;
B. reacting the mixed slurry with kiln gas in a gas-liquid Venturi tube to prepare a calcium-silicon core-shell structure nano calcium carbonate crude product;
C. mixing the calcium-silicon core-shell structure nano calcium carbonate crude product with a modifier in a modification reaction kettle, and stirring to perform a surface modification reaction;
D. after the surface modification reaction is finished, carrying out homogeneous stirring in a homogeneous stirring tank, and then carrying out cooling stirring in a cooling stirring tank; and finally, dehydrating, drying and packaging to obtain the calcium-silicon core-shell structure nano calcium carbonate product.
Compared with the prior art, the utility model has the beneficial effects that:
1. the skid-mounted equipment is reasonably designed, has simple structure and convenient installation, can prepare the calcium-silicon core-shell structure nano calcium carbonate with good acid resistance, good dispersibility and low oil absorption value, well solves the problems of continuity and poor stability of the production and surface modification of the calcium-silicon core-shell structure nano calcium carbonate, complex production process, high energy consumption, uneven product quality and the like, is particularly suitable for industrial automatic control production, and has good economic and social benefits.
2. According to the utility model, through reasonably designing the liquid level relation of the materials entering and exiting the reaction kettle, the modifier can be ensured to fully react with the calcium-silicon core-shell structure nano calcium carbonate, and the modification reaction tank, the homogenizing stirring tank and the cooling stirring tank can form self-flow for conveying, so that the energy consumption is effectively saved, and the production cost is reduced.
3. The modification reaction kettle adopts heat conducting oil to heat in a centralized way, so that the activity of the modifier is effectively improved under the condition of high temperature; because the silica sol coated on the surface of the calcium carbonate can cause desorption under the high-temperature condition, the utility model effectively avoids the problem of silica sol desorption in the high-temperature process by scientifically and reasonably designing the dosage ratio of the modifier and the slurry.
4. The baffle plates are arranged on the modification reaction kettle and the homogenizing stirring tank, so that tangential flow generated by the stirrer during high-speed rotation can be effectively converted into radial flow, the vortex phenomenon generated in the middle of the liquid level during stirring is eliminated, and the stirring and mixing efficiency is improved.
5. The homogeneous stirring tank is arranged, so that the nano calcium carbonate coated twice can be uniformly dispersed, and the generation of calcium carbonate aggregates can be effectively reduced; the cooling stirring tank is arranged behind the homogenizing stirring tank, so that the temperature of the high-temperature modified calcium-silicon core-shell structure calcium carbonate can be reduced to be close to the melting point of the modifier, the modifier is completely precipitated and uniformly coated on the surface of the calcium carbonate, and the dispersibility of the product is further improved.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to the present invention;
the numbers and names in the figure are as follows:
1-calcium carbonate slurry inlet; 2-a silicate access port; 3-liquid mixing venturi tube; 4-an emulsification pump; 5-accessing the mixed liquid; 6-CO2An access port; 7-gas-liquid mixing venturi tube; 8-modifier access; 9-a heat conducting oil outlet; 10-a modification reaction kettle; 11-baffle I; 12-a heat conducting oil access port; 13-evacuation I; 14-stirrer I, 15-stirring shaft I; 16-feed line i; 17-a stirring motor and a speed reducer I; 18-stirring motor and speed reducer II; 19-homogenizing and stirring tank; 20-stirring shaft II; 21-stirrer II; 22-feed line ii; 23-baffle II; 24-stirring motor and speed reducer III; 25-a chevron mixer; 26-evacuation II; 27-cooling water inlet; 28-product discharge port; 29-a cooling water discharge port; 30-stirring and cooling the tank.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment. It should be understood that the directions of "up", "down", "back", "front", "left" and "right" mentioned in the following embodiments of the present invention are all based on the front view of the structure. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the present invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.
Example 1
A device for preparing calcium-silicon core-shell structure nano calcium carbonate is shown in figure 1 and comprises a liquid-liquid Venturi tube 3, an emulsification pump 4, a gas-liquid Venturi tube 7, a modification reaction kettle 10, a homogenizing stirring tank 19, a cooling stirring tank 30, a heat conduction system and a cooling system; the liquid-liquid Venturi tube 3, the emulsification pump 4, the gas-liquid Venturi tube 7, the modification reaction kettle 10, the homogenizing stirring tank 19 and the cooling stirring tank 30 are sequentially connected; self-flow conveying is formed among the modification reaction kettle 10, the homogenizing stirring tank 19 and the cooling stirring tank 30; the heat conduction system is arranged on the modification reaction kettle 10 and can heat the modification reaction kettle 10; the cooling system is provided on the cooling agitation tank 30 and can cool the cooling agitation tank 30.
The liquid-liquid Venturi tube 3 is horizontally arranged, the front end of the liquid-liquid Venturi tube is respectively provided with a calcium carbonate slurry access port 1 and a silicate access port 2, and the rear end of the liquid-liquid Venturi tube is connected with an emulsifying pump 4; the gas-liquid Venturi tube 7 is vertically arranged, and the upper end of the gas-liquid Venturi tube is respectively provided with a mixed liquid inlet 5 and CO2The lower end of the inlet 6 is connected with the top of the modification reaction kettle 10; the mixed liquid inlet 5 is connected with the emulsification pump 4 through a pipeline.
The modification reaction kettle 10 is vertically arranged, and the top of the modification reaction kettle is provided with a modifier inlet 8; a feeding pipeline I is arranged at the modifier inlet 8 and extends into the modification reaction kettle 10 and extends downwards to the middle lower part of the modification reaction kettle 10; a stirring device I is arranged in the modification reaction kettle 10 and comprises a stirring motor, a speed reducer I17, a stirring shaft I15 and a stirrer I14; the stirring motor and the speed reducer I17 are arranged at the center of the top of the modification reaction kettle 10, the output end of the stirring motor and the speed reducer I17 is connected with the upper end of the stirring shaft I15, and the stirrer I14 is provided with double layers and is arranged on the stirring shaft I15; the stirring motor and the speed reducer I17 drive the stirring shaft I15 to rotate, so that the stirrer I14 is driven to rotate for stirring; and a vent I13 is arranged at the bottom of the modification reaction kettle 10.
The heat conduction system comprises a heat conduction oil pipe, a heat conduction oil outlet 9 and a heat conduction oil inlet 12; the heat conduction oil pipe is arranged on the outer side wall of the modification reaction kettle 10, and heat conduction oil is filled in the heat conduction oil pipe; the heat conducting oil inlet 12 is arranged at the lower part of the modification reaction kettle 10, and the heat conducting oil outlet 9 is arranged at the upper part of the modification reaction kettle 10.
Still include baffle I11, baffle I11 locate on the inside wall of modified reaction kettle 10.
The homogenizing and stirring tank 19 is vertically arranged, and the upper part of the side wall of the homogenizing and stirring tank is connected with the upper part of the side wall of the modification reaction kettle 10 through a feeding pipeline II 16; the feeding pipeline II 16 extends into the modification reaction kettle 10 and extends downwards to the bottom of the modification reaction kettle 10; a stirring device II is arranged in the homogenizing stirring tank 19 and comprises a stirring motor, a speed reducer II 18, a stirring shaft II 20 and a stirrer II 21; the stirring motor and the speed reducer II 18 are arranged at the center of the top of the homogenizing stirring tank 19, the output end of the stirring motor and the speed reducer II is connected with the upper end of the stirring shaft II 20, and the stirrer II 21 is provided with double layers and is arranged on the stirring shaft II 20; the stirring motor and speed reducer II 18 drives the stirring shaft II 20 to rotate, so that the stirrer II 21 is driven to rotate for stirring.
The homogenizing stirring tank further comprises a baffle II 23, and the baffle II 23 is arranged on the inner side wall of the homogenizing stirring tank 19.
The cooling stirring tank 30 is vertically arranged, the upper part of the cooling stirring tank is provided with a product discharge port 28, and the lower part of the cooling stirring tank is connected with the bottom of the homogenizing stirring tank 19 through a feed pipeline III 22; a stirring device III is arranged in the cooling stirring tank 30, and comprises a stirring motor, a speed reducer III 24 and a mountain-shaped stirrer 25; the stirring motor and the speed reducer III 24 are arranged at the center of the top of the cooling stirring tank 30, the output end of the stirring motor and the speed reducer III is connected with the upper end of the mountain-shaped stirrer 25, and the mountain-shaped stirrer 25 extends downwards to the bottom of the cooling stirring tank 30; the stirring motor and the speed reducer III 24 drive the mountain-shaped stirrer 25 to rotate for stirring; and a drain II 26 is arranged at the bottom of the cooling stirring tank 30.
The cooling system comprises a cooling water pipe, a cooling water inlet 27 and a cooling water outlet 29; the cooling water pipe is wound on the outer side wall of the cooling stirring tank 30, and cooling water is filled in the cooling water pipe; the cooling water inlet 27 is provided at the lower part of the cooling agitation tank 30, and the cooling water outlet 29 is provided at the upper part of the cooling water pipe.
The using method of the utility model comprises the following steps:
A. closing a drain I of the modification reaction kettle 10 and a drain II 26 of the cooling stirring tank 30, starting a heat conduction oil circulating system, heating the temperature in the modification reaction kettle 10 to 80-95 ℃, and starting a cooling water system to reduce the temperature of the cooling stirring tank 30 to 40-55 ℃; then starting the emulsification pump 4, when the rotating speed reaches the maximum, carbonating until the pH value is 6.5-7.5 and the BET value is 10-50 m2Pumping calcium carbonate slurry with the particle size of 30-200 nm and silicate solution into a liquid-liquid Venturi tube 3 according to the dry basis mass ratio of 50: 1-10: 1 for primary mixing, and performing high-speed dispersion and homogeneous mixing through an emulsification pump 4 to obtain mixed slurry;
B. sending the mixed slurry into a gas-liquid Venturi tube 7 through a pipeline, and mixing the slurry with kiln gas containing carbon dioxide with the concentration of 30-35% according to the volume ratio of 20: 1-5: 1 in the gas-liquid Venturi tube 7 to obtain a crude product mixed solution of calcium-silicon core-shell nano calcium carbonate;
C. adding the crude product mixed solution into a modification reaction kettle 10, simultaneously continuously introducing a prepared modifier solution with the concentration of 3-7% into the modification reaction kettle 10 according to the dry-basis mass ratio of the crude product mixed solution to the modifier solution of 40: 1-10: 1, starting a stirrer I14 at the rotating speed of 5-10 m/s when the liquid level in the modification reaction kettle 10 exceeds a first layer of stirrer I14, and carrying out surface modification on the calcium-silicon core-shell structure nano calcium carbonate crude product;
D. when the liquid level is higher than the upper part of the feed inlet of the homogenizing stirring tank 19, the slurry automatically flows to the homogenizing stirring tank 19 and the cooling stirring tank 30, and when the liquid level reaches the lower layer stirrer II 21 of the homogenizing stirring tank 19, the stirrer II 21 and the stirrer III 25 are started; and when the slurry in the cooling stirring tank 30 rises to the product discharge port 28, the slurry automatically flows to the next procedure, and then the calcium-silicon core-shell structure nano calcium carbonate product is obtained after dehydration, drying and packaging.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides a device for preparing calcium-silicon core-shell structure nanometer calcium carbonate, includes liquid-liquid venturi tube (3), emulsification pump (4), gas-liquid venturi tube (7), modified reaction kettle (10), homogeneity agitator tank (19), cooling agitator tank (30), heat conduction system, cooling system, its characterized in that: the liquid-liquid Venturi tube (3), the emulsification pump (4), the gas-liquid Venturi tube (7), the modification reaction kettle (10), the homogenizing stirring tank (19) and the cooling stirring tank (30) are sequentially connected; self-flow conveying is formed among the modification reaction kettle (10), the homogenizing stirring tank (19) and the cooling stirring tank (30); the heat conduction system is arranged on the modification reaction kettle (10) and can heat the modification reaction kettle (10); the cooling system is arranged on the cooling stirring tank (30) and can cool the cooling stirring tank (30).
2. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the liquid-liquid Venturi tube (3) is horizontally arranged, the front end of the liquid-liquid Venturi tube is respectively provided with a calcium carbonate slurry access port (1) and a silicate access port (2), and the rear end of the liquid-liquid Venturi tube is connected with an emulsifying pump (4); the gas-liquid Venturi tube (7) is vertically arranged, and the upper end of the gas-liquid Venturi tube is respectively provided with a mixed liquid access port (5) and CO2The lower end of the access port (6) is connected with the top of the modification reaction kettle (10); the mixed liquid inlet (5) is connected withThe emulsification pumps (4) are connected through pipelines.
3. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the modification reaction kettle (10) is vertically arranged, and the top of the modification reaction kettle is provided with a modifier inlet (8); a feeding pipeline I is arranged at the modifier access port (8) and extends into the modification reaction kettle (10) and downwards extends to the middle lower part of the modification reaction kettle (10); a stirring device I is arranged in the modification reaction kettle (10), and comprises a stirring motor, a speed reducer I (17), a stirring shaft I (15) and a stirrer I (14); the stirring motor and the speed reducer I (17) are arranged at the center of the top of the modification reaction kettle (10), the output end of the stirring motor and the speed reducer I is connected with the upper end of the stirring shaft I (15), and the stirrer I (14) is provided with double layers and is arranged on the stirring shaft I (15); the stirring motor and the speed reducer I (17) drive the stirring shaft I (15) to rotate, so that the stirrer I (14) is driven to rotate for stirring; and a vent I (13) is arranged at the bottom of the modification reaction kettle (10).
4. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the heat conduction system comprises a heat conduction oil pipe, a heat conduction oil outlet (9) and a heat conduction oil inlet (12); the heat conduction oil pipe is arranged on the outer side wall of the modification reaction kettle (10), and heat conduction oil is filled in the heat conduction oil pipe; the heat conduction oil inlet (12) is arranged at the lower part of the modification reaction kettle (10), and the heat conduction oil outlet (9) is arranged at the upper part of the modification reaction kettle (10).
5. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: still include baffle I (11), baffle I (11) locate on the inside wall of modification reation kettle (10).
6. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the homogenizing stirring tank (19) is vertically arranged, and the upper part of the side wall of the homogenizing stirring tank is connected with the upper part of the side wall of the modification reaction kettle (10) through a feeding pipeline II (16); the feeding pipeline II (16) extends into the modification reaction kettle (10) and extends downwards to the bottom of the modification reaction kettle (10); a stirring device II is arranged in the homogenizing stirring tank (19), and comprises a stirring motor, a speed reducer II (18), a stirring shaft II (20) and a stirrer II (21); the stirring motor and the speed reducer II (18) are arranged at the center of the top of the homogenizing stirring tank (19), the output end of the stirring motor and the speed reducer II is connected with the upper end of the stirring shaft II (20), and the stirrer II (21) is provided with double layers and is arranged on the stirring shaft II (20); the stirring motor and the speed reducer II (18) drive the stirring shaft II (20) to rotate, so that the stirrer II (21) is driven to rotate for stirring.
7. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the homogenizing stirring tank is characterized by further comprising a baffle II (23), wherein the baffle II (23) is arranged on the inner side wall of the homogenizing stirring tank (19).
8. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the cooling stirring tank (30) is vertically arranged, the upper part of the cooling stirring tank is provided with a product discharge port (28), and the lower part of the cooling stirring tank is connected with the bottom of the homogenizing stirring tank (19) through a feed pipeline III (22); a stirring device III is arranged in the cooling stirring tank (30), and the stirring device III comprises a stirring motor, a speed reducer III (24) and a mountain-shaped stirrer (25); the stirring motor and the speed reducer III (24) are arranged at the center of the top of the cooling stirring tank (30), the output end of the stirring motor and the speed reducer III is connected with the upper end of the mountain-shaped stirrer (25), and the mountain-shaped stirrer (25) extends downwards to the bottom of the cooling stirring tank (30); a stirring motor and a speed reducer III (24) drive a mountain-shaped stirrer (25) to rotate for stirring; and a drain port II (26) is arranged at the bottom of the cooling stirring tank (30).
9. The apparatus for preparing calcium-silicon core-shell structured nano calcium carbonate according to claim 1, characterized in that: the cooling system comprises a cooling water pipe, a cooling water inlet (27) and a cooling water outlet (29); the cooling water pipe is wound on the outer side wall of the cooling stirring tank (30), and cooling water is filled in the cooling water pipe; the cooling water inlet (27) is arranged at the lower part of the cooling stirring tank (30), and the cooling water outlet (29) is arranged at the upper part of the cooling water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122629998.XU CN216359017U (en) | 2021-10-29 | 2021-10-29 | Device for preparing calcium-silicon core-shell structure nano calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122629998.XU CN216359017U (en) | 2021-10-29 | 2021-10-29 | Device for preparing calcium-silicon core-shell structure nano calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216359017U true CN216359017U (en) | 2022-04-22 |
Family
ID=81190048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122629998.XU Active CN216359017U (en) | 2021-10-29 | 2021-10-29 | Device for preparing calcium-silicon core-shell structure nano calcium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216359017U (en) |
-
2021
- 2021-10-29 CN CN202122629998.XU patent/CN216359017U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202105611U (en) | Heating and mixing paddle of polymerization reactor | |
| CN102897815B (en) | Nano-calcium carbonate carbonization reaction kettle | |
| CN201901671U (en) | Fermentation tank | |
| CN216359017U (en) | Device for preparing calcium-silicon core-shell structure nano calcium carbonate | |
| CN113999543B (en) | Preparation method of calcium-silicon core-shell structure nano calcium carbonate | |
| CN202953834U (en) | Nanometer calcium carbonate carbonation reaction still | |
| CN206778419U (en) | High dispersive reactor is used in a kind of ferric phosphate production | |
| CN103896475B (en) | A kind of Opsonizing method of sludge high-drying dehydration | |
| CN212189059U (en) | Kettle type stirring reactor | |
| CN102765728A (en) | Precipitation reactor for producing highly dispersed silicon dioxide | |
| CN206392065U (en) | A kind of Titanium series catalyst preparation facilities | |
| CN206642714U (en) | A kind of super fine calcium carbonate preparation coats kettle with modified calcium | |
| CN206661220U (en) | A kind of repeatedly agitating device and polycarboxylate water-reducer reactor | |
| CN211070054U (en) | Large-volume ternary cathode material precursor reaction kettle | |
| CN204342670U (en) | A kind of production system of high-efficient retarder | |
| CN106497141A (en) | A kind of apparatus and method for fine coal gray surface micro/nano level carbonization modification | |
| CN219400022U (en) | Rotary cooling stirring barrel and stirrer | |
| CN206730979U (en) | A kind of nutrition alloy melt stirring device | |
| CN206240477U (en) | A kind of integral type that stirs prepares the reactor of reversed-phase emulsion friction reducer | |
| CN219252592U (en) | Hydrothermal reaction kettle with high-strength gypsum crystal transition agent feeder | |
| CN209866035U (en) | Activation kettle for nano calcium carbonate production | |
| CN217473535U (en) | Chloroethylene intermittent suspension polymerization kettle combined stirring device | |
| CN212153018U (en) | Instant epoxy asphalt blending device | |
| CN206751420U (en) | A kind of feed arrangement for preparing lithium titanate or modified lithium titanate presoma | |
| CN213913261U (en) | Anti-icing fluid production is with stirring mixing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |