CN114264529A - Device for modifying particle shape and surface morphology based on high-speed airflow - Google Patents
Device for modifying particle shape and surface morphology based on high-speed airflow Download PDFInfo
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- CN114264529A CN114264529A CN202111605659.6A CN202111605659A CN114264529A CN 114264529 A CN114264529 A CN 114264529A CN 202111605659 A CN202111605659 A CN 202111605659A CN 114264529 A CN114264529 A CN 114264529A
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- 239000002245 particle Substances 0.000 title claims abstract description 77
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000008187 granular material Substances 0.000 claims description 22
- 238000012876 topography Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000003491 array Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 235000014443 Pyrus communis Nutrition 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000002407 reforming Methods 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000001131 transforming effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000013618 particulate matter Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A device for modifying particle shape and surface morphology based on high-speed airflow comprises a sealing cover plate, a metal net, a cavity wall, a base, an air inlet channel, a cylindrical array and particle materials. After the particle reconstruction device is started, energy is provided by high-speed air flow to drive the particle reconstruction device to rub against the wall of a surrounding cavity, a cylindrical array and other particles so as to achieve the reconstruction purpose. The invention has the advantages of simple integral structure, convenient disassembly, stable working environment, capability of transforming various kinds of particle substances and the like.
Description
Technical Field
The invention relates to the technical field of particle shape and surface appearance modification, in particular to a device for modifying the characteristics of particle size, shape, surface appearance and the like flowing along with airflow through airflow rotating at a high speed in a cavity.
Background
Particulate materials are ubiquitous in nature, everyday life and production and technology, including: natural substances such as sand, soil, floating ice and the like, and industrial products such as grains, sugar, salt and the like; as a complex system, the characteristics of the particle substances are mainly determined by the interaction of contact, friction, collision and the like among particles, so that the transfer of heat energy, kinetic energy and chemical energy is realized. The shape and surface roughness of the particles play a crucial role in this regard. The physical and mechanical properties of the granular material are deeply understood by controlling the size, shape and surface structure of the granular material, and then the arrangement, transportation and control capabilities of the granular material are improved, so that the granular material has great benefits on the prevention and control of natural disasters and the development of global industry and economy.
Disclosure of Invention
The invention aims to provide a device for modifying particle shape and surface morphology based on high-speed airflow, which is characterized in that high-speed rotating airflow is continuously input into a cavity to drive particle materials to rotate, so that mutual friction and collision between particles and cavity walls and between particles are caused, and the particles are modified.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a device for modifying particle shape and surface morphology based on high-speed airflow comprises a sealing cover plate 1 with holes, a cavity wall 2, a base 3, a cylindrical array 4, an air inlet channel 5, a particle material 6 and a metal mesh 7; the sealing cover plate 1 is fixedly connected with the upper end 2-1 of the cavity wall, the metal mesh 7 for filtering debris is positioned in the middle of the hole of the sealing cover plate 1 and is fixed, the base 3 is in threaded connection with the lower end 2-2 of the cavity wall, and the sealing cover plate 1, the cavity wall 2 and the base 3 enclose a cavity; the cylindrical arrays 4 are located in the cavity and in threaded connection with the base 3, the granular material 6 is placed in the cavity, the granular material 6 has an initial shape and has different hardness values relative to modified granules, and the air inlet channel 5 is a through hole formed in the bottom of the side wall of the cavity wall 2 and is a channel for high-pressure air to enter the cavity wall 2.
The shape of the cavity wall 2 can be selected from a plurality of shapes such as pear shape, water drop shape, cone shape, column shape and the like, and the mode can utilize the energy of airflow to the maximum extent and fully increase the contact between material particles and the cavity wall.
The cross section of the columnar array 4 fixedly connected with the base 3 can be selected into various shapes according to requirements, high-hardness or low-hardness columnar array materials are selected, the surface of the columnar array 4 has roughness, and a gap is formed between the adjacent columnar arrays 4 and has the functions of restraining the movement track of particles and rubbing the particles.
The upper cavity wall end 2-1 of the cavity wall 2 is smaller than the volume contained by the lower cavity wall end 2-2.
The wire mesh 7 is a filter screen which filters debris or undersized particles which do not meet the dimensional requirements as they escape with the airflow.
The air inlet channel 5 is tangent to the inner wall surface of the bottom of the cavity, so that the airflow regularly rotates along the inner wall of the cavity.
The working method of the device for reforming the particle shape and the surface morphology based on the high-speed airflow comprises the steps of adding particles to be reformed into a cavity at the beginning, blowing high-pressure air into the cavity through an air inlet channel 5, enabling the high-speed airflow to spirally move along the cavity wall, enabling the particles to be reformed to obtain kinetic energy from the airflow, and enabling the particles to move along with the airflow and generate friction with the cavity wall surface and a cylindrical array; in the movement process, the internal high-hardness cylindrical array plays a role in restraining the movement track of the particle substances, so that the particles to be modified are in full contact friction with the cavity wall, and simultaneously have a friction effect with the particles to be modified; the low-hardness columnar array plays a role in reducing the rotating movement speed of the particles to be modified in the cavity and increasing the contact time and the contact probability among the particles to be modified; granular materials 6 with initial shapes, sizes and hardness are put into the cavity, so that the mutual friction between the granular materials and the granules to be modified is increased, and the friction probability of the granules to be modified is increased; the air flow moves upwards to the sealing cover plate 1 and flows out of the middle hole, and the metal mesh 7 in the middle hole of the sealing cover plate 1 plays a role in intercepting particles to be modified, prevents the particles to be modified from flying out from the upper end and can also play a role in filtering debris; in the whole process, different types of particles need to refer to an established database, and parameters such as flow speed, flow, working time and the like of the air inlet are controlled, so that the aims of controlling the energy of the inflowing fluid and reforming the size, shape and surface topography of the particle substances are fulfilled.
The invention has the following advantages:
1. the whole structure is simple and the disassembly is convenient. The internal cylindrical array and the initial particulate matter, etc. can be replaced as desired.
2. The device for transforming the particulate matter based on the high-pressure air is simple in principle and convenient to control. The particle matter moves and rubs in the cavity along with the air flow to achieve the aim of modifying the particles.
3. The cavity of the device for reforming the particulate matter based on the high-pressure air can be selected from various shapes, such as pear shape, water drop shape, cone shape, column shape and the like.
4. The device has stable working environment, is not easy to be interfered, has wide application range and can be used for transforming various granular substances, such as sand, rocks, metal particles, ceramic particles, plastic particles, silicon carbide particles and the like.
Drawings
FIG. 1 is a front cross-sectional view of a particulate matter retrofitting apparatus of the present invention
Fig. 2 is a side sectional view of a modified particulate matter apparatus of the present invention.
Fig. 3 is a schematic view of the shape of the curvilinear chamber of the device for modifying particulate matter of the present invention.
Fig. 4 is a three-dimensional view of the components of the apparatus for modifying particulate matter of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, fig. 2 and fig. 4, the device for reforming the shape and surface topography of particles based on high-speed airflow comprises a sealing cover plate 1 with holes, a cavity wall 2, a base 3, a cylindrical array 4, an air inlet channel 5, a particle material 6 and a metal mesh 7; the sealing cover plate 1 is fixedly connected with the upper end 2-1 of the cavity wall, the metal mesh 7 for filtering debris is positioned in the middle of the hole of the sealing cover plate 1 and is fixed, the base 3 is in threaded connection with the lower end 2-2 of the cavity wall, and the sealing cover plate 1, the cavity wall 2 and the base 3 enclose a cavity; the cylindrical arrays 4 are located in the cavity and in threaded connection with the base 3, the granular material 6 is placed in the cavity, the granular material 6 has an initial shape and has different hardness values relative to modified granules, and the air inlet channel 5 is a through hole formed in the bottom of the side wall of the cavity wall 2 and is a channel for high-pressure air to enter the cavity wall 2.
As a preferred embodiment of the invention, the shape of the cavity wall 2 can be selected from a plurality of shapes such as pear shape, drop shape, cone shape, column shape, etc., and this way can utilize the energy of the airflow to the maximum extent and fully increase the contact of the material particles and the cavity wall. As shown in fig. 2, this embodiment takes the shape of a pear.
As a preferred embodiment of the invention, the cross section of the columnar array 4 fixedly connected with the base 3 can be selected from various shapes according to requirements, a high-hardness or low-hardness columnar array material is selected, the surface of the columnar array 4 has roughness, and a gap is arranged between adjacent columnar arrays 4, and the gap has the functions of restraining the motion track of particles and rubbing the particles.
As a preferred embodiment of the invention, the upper chamber wall end 2-1 of the chamber wall 2 is smaller than the volume contained by the lower chamber wall end 2-2, so that the energy is utilized to the maximum extent, that is, when the bottom gas rises, the flow velocity can be relatively kept due to the reduction of the cross-sectional area of the chamber body according to the Bernoulli principle, and the particles are driven to rub against the chamber wall.
As a preferred embodiment of the invention, the wire 7 is a screen, which filters debris or too small particles that do not meet the size requirements as they escape with the airflow.
As a preferred embodiment of the invention, the air inlet channel 5 is tangent to the inner wall surface of the bottom of the cavity, so that the airflow regularly rotates along the inner wall of the cavity.
The device is applied to the reconstruction of the size, the shape and the surface roughness of the particles. At the beginning of the start-up of the device, the particle material 6 with certain rigidity, initial shape and roughness is added into the cavity, and then the particles to be modified are added. The starting compressor controls the air flow and the flow speed to enter the cavity through the air inlet channel 5 to drive particles in the cavity to move rapidly, friction occurs between the particles and the wall surface and the cylindrical array of the cavity in the process, the particles can rub against each other, air in the cavity finally flows out from a pore channel in the middle of the sealing cover plate through the metal mesh 7 after being spirally lifted, and the outside of the sealing cover plate 1 is required to be connected with a collecting device to collect and operate and protect the chips. The conditions required by the whole transformation process are consistent with the corresponding variables in the established database, so that the purposes of transforming the size, the shape and the surface texture of the material particles are achieved.
Claims (7)
1. A device based on high velocity gas flow reforms transform particle shape and surface topography which characterized in that: comprises a sealing cover plate (1) with a hole, a cavity wall (2), a base (3), a cylindrical array (4), an air inlet channel (5), a granular material (6) and a metal net (7); the sealing cover plate (1) is fixedly connected with the upper end (2-1) of the cavity wall, a metal net (7) for filtering debris is fixedly arranged in the middle of a hole of the sealing cover plate (1), the base (3) is in threaded connection with the lower end (2-2) of the cavity wall, and the sealing cover plate (1), the cavity wall (2) and the base (3) enclose a cavity; a plurality of columnar arrays (4) are located in the cavity and in threaded connection with the base (3), the granular material (6) is arranged in the cavity, the granular material (6) has an initial shape and different hardness values relative to modified granules, and the air inlet channel (5) is a through hole formed in the bottom of the side wall of the cavity wall (2) and is a channel for high-pressure air to enter the cavity wall (2).
2. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the shape of the cavity wall (2) adopts a pear shape, a water drop shape, a cone shape or a column shape.
3. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the section of the columnar array (4) fixedly connected with the base (3) selects high-hardness or low-hardness columnar array material according to requirements, the surface of the columnar array (4) has roughness, and a gap is formed between the adjacent columnar arrays (4) and has the functions of restraining the motion track of particles and rubbing the particles.
4. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the upper cavity wall end (2-1) of the cavity wall (2) is smaller than the volume contained by the lower cavity wall end (2-2).
5. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the metal mesh (7) is a filter screen and acts to filter debris or undersized particles that do not meet the dimensional requirements as they escape with the airflow.
6. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the air inlet channel (5) is tangent to the inner wall surface of the bottom of the cavity, so that the airflow regularly rotates along the inner wall of the cavity.
7. The apparatus for modifying particle shape and surface topography based on high velocity gas flow as claimed in claim 1, wherein: the particles to be modified are added into the cavity at the beginning, high-pressure air is blown into the cavity through the air inlet channel (5), high-speed air flow moves spirally along the cavity wall, the particles to be modified obtain kinetic energy from the air flow, and the kinetic energy moves along with the air flow and generates friction with the cavity wall surface and the cylindrical array; in the movement process, the internal high-hardness cylindrical array plays a role in restraining the movement track of the particle substances, so that the particles to be modified are in full contact friction with the cavity wall, and simultaneously have a friction effect with the particles to be modified; the low-hardness columnar array plays a role in reducing the rotating movement speed of the particles to be modified in the cavity and increasing the contact time and the contact probability among the particles to be modified; granular materials (6) with initial shape, size and hardness are put into the cavity, so that the mutual friction between the granular materials and the granules to be modified is increased, and the friction probability of the granules to be modified is increased; the air flow moves upwards to the sealing cover plate (1) and flows out from the middle hole, and the metal mesh (7) in the middle hole of the sealing cover plate (1) plays a role in intercepting particles to be modified, prevents the particles to be modified from flying out from the upper end and also plays a role in filtering debris; in the whole process, different types of particles need to be referred to an established database, and the flow speed, the flow and the working time parameters of the air inlet are controlled to achieve the purposes of controlling the energy of the inflowing fluid and reforming the size, the shape and the surface topography of the particle substances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111605659.6A CN114264529B (en) | 2021-12-25 | 2021-12-25 | Device for modifying particle shape and surface morphology based on high-speed airflow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111605659.6A CN114264529B (en) | 2021-12-25 | 2021-12-25 | Device for modifying particle shape and surface morphology based on high-speed airflow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114264529A true CN114264529A (en) | 2022-04-01 |
| CN114264529B CN114264529B (en) | 2024-08-23 |
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| CN202111605659.6A Active CN114264529B (en) | 2021-12-25 | 2021-12-25 | Device for modifying particle shape and surface morphology based on high-speed airflow |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122563A (en) * | 1982-06-29 | 1984-01-18 | Billy Brent Lovejoy | System for conveying and processing aggregate materials |
| DE3941836A1 (en) * | 1989-03-03 | 1990-09-06 | Palmer Gmbh Maschf | Grinding arrangement - includes housing, grinding cylinder, filling funnel, grinding blade, shaft, motor, bearings, seals, bushing and sealing plate |
| US6540165B1 (en) * | 1999-09-24 | 2003-04-01 | Union Carbide Chemicals & Plastics Technology Corporation | Process for handling particulate material at elevated pressure |
| CN202527251U (en) * | 2011-12-14 | 2012-11-14 | 陆锁根 | Full-ceramic and pollution-free fluidized bed jet mill |
| CN103128288A (en) * | 2011-11-22 | 2013-06-05 | 元磁新型材料(苏州)有限公司 | Metal crystal powder and production method and production device thereof |
| CN103857470A (en) * | 2011-10-08 | 2014-06-11 | 胡心宇 | Pulverizing and shaping device and method |
| CN208894368U (en) * | 2018-09-04 | 2019-05-24 | 天津市绿亨化工有限公司 | A kind of pesticide producing wettable powder air-flow crushing collection device |
| CN110813479A (en) * | 2019-11-19 | 2020-02-21 | 黄石世星药业有限责任公司 | High-efficiency jet mill and milling process thereof |
-
2021
- 2021-12-25 CN CN202111605659.6A patent/CN114264529B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122563A (en) * | 1982-06-29 | 1984-01-18 | Billy Brent Lovejoy | System for conveying and processing aggregate materials |
| DE3941836A1 (en) * | 1989-03-03 | 1990-09-06 | Palmer Gmbh Maschf | Grinding arrangement - includes housing, grinding cylinder, filling funnel, grinding blade, shaft, motor, bearings, seals, bushing and sealing plate |
| US6540165B1 (en) * | 1999-09-24 | 2003-04-01 | Union Carbide Chemicals & Plastics Technology Corporation | Process for handling particulate material at elevated pressure |
| CN103857470A (en) * | 2011-10-08 | 2014-06-11 | 胡心宇 | Pulverizing and shaping device and method |
| CN103128288A (en) * | 2011-11-22 | 2013-06-05 | 元磁新型材料(苏州)有限公司 | Metal crystal powder and production method and production device thereof |
| CN202527251U (en) * | 2011-12-14 | 2012-11-14 | 陆锁根 | Full-ceramic and pollution-free fluidized bed jet mill |
| CN208894368U (en) * | 2018-09-04 | 2019-05-24 | 天津市绿亨化工有限公司 | A kind of pesticide producing wettable powder air-flow crushing collection device |
| CN110813479A (en) * | 2019-11-19 | 2020-02-21 | 黄石世星药业有限责任公司 | High-efficiency jet mill and milling process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈文梅等: "超细气流粉碎基础理论的研究现状及发展", 《化工机械》, vol. 31, no. 6, 31 December 2004 (2004-12-31), pages 378 - 383 * |
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| CN114264529B (en) | 2024-08-23 |
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