CN215162301U

CN215162301U - Nano spherical silica micropowder surface modification device

Info

Publication number: CN215162301U
Application number: CN202121375986.2U
Authority: CN
Inventors: 刘亚
Original assignee: Jiangsu Huimai Powder Technology Co ltd
Current assignee: Jiangsu Huimai Powder Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-14
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a nanometer spherical silica micropowder surface modification device, which comprises a fluidization bin, wherein the side surface of the fluidization bin is provided with a dosing port and a feed inlet, the bottom surface of the fluidization bin is provided with a discharge outlet, a filtering device is arranged in the fluidization bin, the dosing port, the feed inlet and the discharge outlet are all positioned at the lower side of the filtering device, the fluidization bin is also provided with an air inlet and an air outlet, the air inlet is arranged at the lower side of the filtering device, and the air inlet is connected with a high-temperature air source; the air outlet is arranged at the upper side of the filtering device. The nanometer spherical silicon micropowder is fluidized by gas, so that the powder is dispersed without agglomeration, the medicament can fully contact with the powder, the modification effect is improved, and the activation index of the nanometer spherical silicon micropowder is further improved; the nanometer spherical silicon micro powder is heated by high-temperature gas, so that the heating uniformity and the heating efficiency are improved, and the utilization rate of energy is improved.

Description

Nano spherical silica micropowder surface modification device

Technical Field

The utility model relates to a silica micropowder materials technical field especially relates to a spherical silica micropowder surface modification device of nanometer.

Background

The superfine silicon powder has the characteristics of small granularity, large specific surface area, high chemical purity, good dispersion performance and the like. The composite material is widely applied to various fields such as rubber, coating, medicine, papermaking, daily chemicals and the like by virtue of excellent stability, strengthening property, thickening property and thixotropy, provides a foundation and technical guarantee of a new material for the development of related industrial fields, and enjoys the reputation of 'industrial monosodium glutamate' and 'the origin of material science'.

The use of the superfine silica powder in the fields of electronic CCL, EMC, plastics, paint, ink and the like has to modify the surface of the superfine silica powder so as to change the property of the interface of the superfine silica powder, improve the affinity of the superfine silica powder and an organic polymer material and improve the dispersibility and the fluidity of the superfine silica powder in the organic polymer material; improve the application performance of the powder or endow new functionality, such as hydrophobicity, heat resistance, interface heat resistance reduction and the like. The addition of the superfine silicon powder can be increased through surface modification, the product grade is improved, and the product cost is reduced.

The high-speed stirrer is the most common modification equipment for the silicon micropowder: the powder is stirred at a high speed by the internal stirring blades to rotate, the shell is heated to enable the temperature of the powder to rise to a required temperature, and then the modified agent is sprayed on the surface of the powder through the atomizing nozzle to modify the powder.

However, in the process of implementing the technical solution of the present invention in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following problems:

the specific surface area of the nano-grade superfine silica powder is larger, the existing modifying device can not break up the aggregate, and further can not uniformly disperse the treating agent on the surface of the particle, and uniform modification can not be realized; meanwhile, the superfine silicon powder in the cylinder cannot be uniformly heated by heating the cylinder wall, and the modification effect of the superfine silicon powder is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spherical silica micropowder surface modification device of nanometer that dispersion effect is good, the heating is even, the device is realized through following technical scheme.

A nanometer spherical silica micropowder surface modification device comprises a fluidization bin, wherein a dosing port and a feeding port are arranged on the side surface of the fluidization bin, a discharging port is arranged on the bottom surface of the fluidization bin, a filtering device is arranged in the fluidization bin, the dosing port, the feeding port and the discharging port are all positioned on the lower side of the filtering device, the fluidization bin is also provided with an air inlet and an air outlet, the air inlet is arranged on the lower side of the filtering device, and the air inlet is connected with a high-temperature air source; the air outlet is arranged at the upper side of the filtering device.

Further, the air inlet is arranged on the side surface of the fluidization bin, and the air inlet is tangent to the fluidization bin.

Further, the air inlet is arranged on the bottom surface of the fluidization bin.

Furthermore, the filtering device is a filter bag dust collector and comprises a pattern plate and a filter bag arranged on the pattern plate.

Further, a back-blowing fan is connected to the air outlet.

Furthermore, a dosing nozzle is arranged at the dosing opening and extends into the fluidization bin.

Further, the outlet temperature of the high-temperature air source is 80-160 ℃.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

1. the nanometer spherical silicon micropowder is fluidized by gas, so that the powder is dispersed without agglomeration, the medicament can fully contact with the powder, the modification effect is improved, and the activation index of the nanometer spherical silicon micropowder is further improved;

2. the nanometer spherical silicon micro powder is heated by high-temperature gas, so that the heating uniformity and the heating efficiency are improved, and the utilization rate of energy is improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic structural view of a chemical adding nozzle in the embodiment of the present application;

fig. 3 is a top view of an embodiment of the present application.

In the drawings, there is shown: 1. a fluidization bin; 11. a medicine adding port; 12. a feed inlet; 13. a discharge port; 14. an air inlet; 15. an air outlet; 2. a filtration device; 21. a pattern plate; 22. a filter bag; 3. a dosing nozzle; 31. a connecting pipe; 32. an annular tube; 33. an atomizing nozzle.

Detailed Description

For better understanding of the above technical solutions, the following detailed descriptions will be made in conjunction with the accompanying drawings and the detailed description of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The surface modification device for the nanometer spherical silica powder shown in fig. 1 comprises a fluidization bin 1, wherein a dosing port 11 and a feeding port 12 are arranged on the side surface of the fluidization bin 1, a discharging port 13 is arranged on the bottom surface of the fluidization bin 1, a filtering device 2 is arranged in the fluidization bin 1, the dosing port 11, the feeding port 12 and the discharging port 13 are all positioned on the lower side of the filtering device 2, the fluidization bin 1 is also provided with an air inlet 14 and an air outlet 15, the air inlet 14 is arranged on the lower side of the filtering device 2, and the air inlet 14 is connected with a high-temperature air source (not shown); the air outlet 15 is provided at the upper side of the filter device 2.

Specifically, the fluidization bin 1 is a cylindrical shell which is formed by welding stainless steel and has cambered upper and lower ends, and a ceramic lining is arranged inside the shell to avoid the generation of metal impurities due to friction with the inner wall when powder is fluidized; the inside of fluidization storehouse 1 is provided with filter equipment 2, and filter equipment 2 includes card 21 and filter bag 22, and card 21 detachably fixes on the inside upside lateral wall of fluidization storehouse 1, and filter bag 22 is installed on card 21. Preferably, the top of the housing is openable to facilitate maintenance of the filter device 2.

As shown in fig. 1 and 2, a medicine adding nozzle 3 is arranged at the medicine adding port 11, and the medicine adding nozzle 3 extends into the fluidization bin 1; the medicine adding nozzle 3 comprises a connecting pipe 31, an annular pipe 32 and atomizing nozzles 33, one end of the connecting pipe 31 is connected with the medicine adding port 11, the other end of the connecting pipe 31 is connected with the annular pipe 32, the annular pipe 32 is positioned at the center of the fluidization chamber 1, and the atomizing nozzles 33 are uniformly distributed on the annular pipe 33; the feed port 12 is positioned slightly below the height of the dosing port 11. The medicament is sprayed on the nanometer spherical silicon micropowder from the medicament feeding port 11 through the connecting pipe 31 and the annular pipe 32 from the atomizing nozzle 33.

As shown in fig. 1 and 3, the air inlets 14 are arranged at the bottom and the side of the fluidization bin 1, and the air inlets 14 at the side are tangent to the side wall of the fluidization bin 1, so that spiral air flow is formed in the fluidization bin 1, and the fluidization effect of the nano spherical silicon micropowder is increased; the air inlet 14 is connected with a high-temperature air source, the high-temperature air source is an air compressor and a heating device, the heating device heats the gas discharged by the air compressor to 80-160 ℃, and then the gas enters the fluidization bin 1 through the air inlet 14 to heat the nano spherical silicon micropowder.

The air outlet 15 is arranged at the top of the fluidized chamber 1, the air outlet 15 is connected with a back-blowing fan (not shown), and the back-blowing fan regularly performs back-blowing on the air outlet to avoid the blockage of the filter bag.

The working principle of the embodiment of the application is as follows:

firstly, adding nano spherical silicon micro powder into a fluidization bin from a feed inlet, filling high-temperature gas into the fluidization bin from a gas inlet, dispersing and atomizing the powder by the high-temperature gas to achieve a fluidization state, uniformly heating the powder, and atomizing and dispersing powder particles; the gas overflows from the gas outlet through the filtering device, and the nano spherical silicon micro powder is intercepted by the filter bag, so that the powder loss is avoided; the back-blowing fan regularly carries out the back-blowing to filter equipment, avoids the filter bag to block up.

Then adding the medicament through a medicament adding port, atomizing the medicament through a medicament adding nozzle to fully contact with the powder, uniformly contacting the modified medicament with the powder, fully modifying the modified powder, and enabling the powder to have no agglomeration, wherein the medicament can more easily form a monomolecular modified layer on the surface of the nano spherical silicon micro powder particles.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spherical silica micropowder surface modification device of nanometer, includes the fluidization storehouse, the side in fluidization storehouse is provided with medicine mouth and feed inlet, the bottom surface in fluidization storehouse is provided with discharge gate, its characterized in that: the fluidized bin is internally provided with a filtering device, the dosing port, the feeding port and the discharging port are all positioned at the lower side of the filtering device, the fluidized bin is also provided with an air inlet and an air outlet, the air inlet is arranged at the lower side of the filtering device, and the air inlet is connected with a high-temperature air source; the air outlet is arranged on the upper side of the filtering device.

2. The device for modifying the surface of nanometer spherical silica micropowder according to claim 1, wherein the air inlet is arranged on the side surface of the fluidization bin, and the air inlet is tangential to the fluidization bin.

3. The device for modifying the surface of nanometer spherical silica micropowder according to claim 1, wherein the air inlet is arranged on the bottom surface of the fluidization bin.

4. The device for modifying the surface of nano spherical silica micropowder according to claim 1, wherein the filtering device is a bag-type dust collector comprising a pattern plate and a filter bag arranged on the pattern plate.

5. The device for modifying the surface of nano spherical silica micropowder according to claim 1, wherein a back blower is connected to the gas outlet.

6. The device for modifying the surface of nanometer spherical silica micropowder according to claim 1, wherein a drug-adding nozzle is arranged at the drug-adding opening, and the drug-adding nozzle extends into the fluidization bin.

7. The device for modifying the surface of nano spherical silica micropowder according to claim 1, wherein the temperature of the gas discharged from the high-temperature gas source is 80 to 160 ℃.