CN114264529B - 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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- CN114264529B CN114264529B CN202111605659.6A CN202111605659A CN114264529B CN 114264529 B CN114264529 B CN 114264529B CN 202111605659 A CN202111605659 A CN 202111605659A CN 114264529 B CN114264529 B CN 114264529B
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- 239000002245 particle Substances 0.000 title claims abstract description 80
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000003491 array Methods 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 235000014443 Pyrus communis Nutrition 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000002407 reforming Methods 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 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
- 239000005445 natural 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
- 230000000630 rising effect Effects 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
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
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 a particle material. After the particle reforming device is started, energy is provided by high-speed air flow to drive mutual friction with surrounding cavity walls, cylindrical arrays and other particles so as to achieve the reforming purpose. The invention has the advantages of simple integral structure, convenient disassembly, stable working environment, capability of reforming various particulate matters, and the like.
Description
Technical Field
The invention relates to the technical field of particle shape and surface morphology modification, in particular to a device for modifying the characteristics of particle size, shape, surface morphology and the like flowing along with airflow through airflow rotating at high speed in a cavity.
Background
Particulate materials are ubiquitous in nature, daily life, and in 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 particulate matter are mainly determined by interactions such as contact, friction and collision among particles, so as to realize the transfer of heat energy, kinetic energy and chemical energy. The shape and surface roughness of the particles play a critical role. The physical and mechanical properties of the granular material are deeply understood by controlling the size, shape and surface structure of the granular material, so that the improvement of the placement, transportation and control capability of the granular material is greatly beneficial to 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 the shape and the surface morphology of particles based on high-speed airflow, in particular to a device for modifying particles by continuously inputting high-speed rotating airflow into a cavity to drive the rotating motion of particle materials so as to further cause the mutual friction and collision between the particles and the cavity wall and between the particles.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A device for modifying particle shape and surface morphology based on high-speed air flow comprises a sealing cover plate 1 provided 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 net 7; the sealing cover plate 1 is fixedly connected with the upper end 2-1 of the cavity wall, the metal net 7 for filtering scraps is positioned in the middle of a 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 form a cavity; the columnar arrays 4 are positioned in the cavity and are in threaded connection with the base 3, the granular materials 6 are arranged in the cavity, the granular materials 6 have initial shapes and have different hardness values relative to the particles to be reformed, 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 pear-shaped, drop-shaped, conical, cylindrical and the like, and the energy of the air flow can be utilized to the maximum extent, so that the contact between the material particles and the cavity wall is fully increased.
The section of the cylindrical array 4 fixedly connected with the base 3 can be in various shapes according to requirements, the cylindrical array material with high hardness or low hardness is selected, the surface of the cylindrical array 4 has roughness, and gaps are formed between the adjacent cylindrical arrays 4 and are used for restraining the movement track of particles and friction with the particles.
The upper chamber wall end 2-1 of the chamber wall 2 is smaller than the volume accommodated by the lower chamber wall end 2-2.
The metal mesh 7 is a filter mesh that filters debris or too small particles that are not of a desired size as the air flows over.
The air inlet channel 5 is tangent to the inner wall surface of the bottom of the cavity, so that the air flow regularly rotates along the inner wall of the cavity.
According to the working method of the device for modifying the particle shape and the surface morphology based on the high-speed air flow, particles to be modified are added into a cavity at first, high-pressure air is blown into the cavity through an air inlet channel 5, the high-speed air flow moves spirally along the cavity wall, the particles to be modified obtain kinetic energy from the air flow, and the particles move along with the air flow and generate friction with the cavity wall surface and the cylindrical array; in the motion process, the inner high-hardness cylindrical array plays a role in restricting the motion trail of the particulate matters, so that the particles to be reformed and the cavity wall are fully contacted and rubbed, and simultaneously the particles to be reformed are rubbed; the low-hardness cylindrical array plays a role in reducing the rotation movement speed of particles to be reformed in the cavity and increasing the contact time and the contact probability among the particles to be reformed; the particle material 6 with the initial shape, size and hardness is put into the cavity, so that the mutual friction between the particle material and the particle material to be reformed is increased, and the friction probability of the particle to be reformed is increased; the air flow moves upwards to the sealing cover plate 1 and flows out from the middle hole, the metal net 7 in the middle hole of the sealing cover plate 1 plays a role in intercepting particles to be reformed, preventing the particles to be reformed from flying out from the upper end, and also playing a role in filtering scraps; in the whole process, the established database is needed to be referenced for different types of particles, and parameters such as the flow speed, the flow rate, the working time and the like of the air inlet are controlled to achieve the purposes of controlling the energy of the flowing fluid and modifying the size, the shape and the surface morphology of the particulate matters.
The invention has the following advantages:
1. the whole structure is simple and the disassembly is convenient. The inner columnar arrays, the initial particulate matter, etc. may be replaced as desired.
2. The device for reforming the particulate matters based on the high-pressure air is simple in principle and convenient to control. The particle matter moves and rubs along with the airflow in the cavity to achieve the aim of modifying the particles.
3. The cavity of the device for reforming the particulate matters based on the high-pressure air can have various options, including pear shapes, drop shapes, conical shapes, cylindrical shapes and the like.
4. The device has stable working environment, is not easy to be disturbed, has wide application range and can be used for reforming various particulate matters, such as sand, rock, 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 modifying apparatus of the present invention
Fig. 2 is a side cross-sectional view of a particulate matter modifying apparatus of the present invention.
FIG. 3 is a schematic representation of the curvilinear cavity shape of the particulate matter device of the present invention.
Fig. 4 is a three-dimensional view of the components of the particulate matter retrofitting apparatus of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1,2 and 4, the device for modifying the shape and surface morphology of particles based on high-speed air flow 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 net 7; the sealing cover plate 1 is fixedly connected with the upper end 2-1 of the cavity wall, the metal net 7 for filtering scraps is positioned in the middle of a 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 form a cavity; the columnar arrays 4 are positioned in the cavity and are in threaded connection with the base 3, the granular materials 6 are arranged in the cavity, the granular materials 6 have initial shapes and have different hardness values relative to the particles to be reformed, 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 present invention, the shape of the cavity wall 2 may be pear-shaped, drop-shaped, cone-shaped, cylindrical, etc., and this way, the energy of the air flow may be utilized to the maximum, and the contact between the material particles and the cavity wall may be increased sufficiently. As shown in fig. 2, the present embodiment adopts a pear shape.
As a preferred embodiment of the invention, the cross section of the columnar arrays 4 fixedly connected with the base 3 can be in various shapes according to requirements, the columnar array materials with high hardness or low hardness are selected, the surface of each columnar array 4 has roughness, and gaps are arranged between the adjacent columnar arrays 4, so that the action of restricting the movement track of particles and the action of friction with the particles can be realized.
As a preferred embodiment of the present invention, the upper end 2-1 of the chamber wall 2 has a smaller volume than the lower end 2-2 of the chamber wall, so that the energy is utilized to the maximum extent, that is, the flow rate can be relatively maintained due to the reduction of the cross-sectional area of the chamber when the bottom gas rises, and the particles and the chamber wall are driven to rub against each other.
As a preferred embodiment of the invention, the metal mesh 7 is a filter mesh that filters debris or excessively small particles that are not size-friendly as the air stream overflows.
As a preferred embodiment of the invention, the air inlet channel 5 is tangential to the inner wall surface of the bottom of the cavity, so that the air flow regularly rotates along the inner wall of the cavity.
The device is applied to the modification of the size, shape and surface roughness of particles. At the beginning of the start-up of the device, the particulate material 6, which already has a certain stiffness, initial shape, roughness, is added to the cavity, after which the particles to be remodeled are added. The compressor is started to control air flow and flow velocity, the air enters the cavity through the air inlet channel 5 to drive particles in the cavity to move rapidly, friction is generated among the particles, the wall surface of the cavity and the cylindrical array in the process, the particles can also rub 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 through spiral rising, and a collecting device is needed to be connected to the outside of the sealing cover plate 1 to collect scraps and operate and protect the scraps. The required conditions of the whole transformation process are consistent with corresponding variables in an established database, so that the purposes of transforming the size, shape and surface texture of the material particles are achieved.
Claims (7)
1. The utility model provides a device based on high-speed air current reforms transform granule shape and surface morphology which characterized in that: the device 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 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, the metal net (7) for filtering scraps is positioned in the middle of a 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) form a cavity; the cylindrical arrays (4) are located in the cavity and are in threaded connection with the base (3), the granular materials (6) are arranged in the cavity, the granular materials (6) have initial shapes and have different hardness values relative to the particles to be reformed, the air inlet channels (5) are through holes formed in the bottoms of the side walls of the cavity walls (2), and the air inlet channels are channels for high-pressure air to enter the cavity walls (2).
2. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the shape of the cavity wall (2) adopts pear shape, drop shape, cone shape or column shape.
3. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the section of the cylindrical array (4) fixedly connected with the base (3) is made of high-hardness or low-hardness cylindrical array materials according to requirements, the surface of the cylindrical array (4) has roughness, and gaps are formed between adjacent cylindrical arrays (4) and are used for restraining particle movement tracks and friction with particles.
4. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the upper end (2-1) of the cavity wall (2) is smaller than the volume accommodated by the lower end (2-2) of the cavity wall.
5. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the metal mesh (7) is a filter screen which can filter the debris or too small particles which do not meet the size requirement when overflowed with the airflow.
6. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the air inlet channel (5) is tangential to the inner wall surface of the bottom of the cavity, so that the air flow regularly rotates along the inner wall of the cavity.
7. The apparatus for modifying particle shape and surface morphology based on high velocity gas flow of claim 1, wherein: the method comprises the steps that particles to be reformed are added into a cavity at first, high-pressure air is blown into the cavity through an air inlet channel (5), high-speed air flow moves spirally along the cavity wall, the particles to be reformed obtain kinetic energy from the air flow, and the particles move along with the air flow and generate friction with the cavity wall surface and the cylindrical array; in the moving process, a cylindrical array (4) made of a high-hardness cylindrical array material is used for restraining the movement track of the particulate matters, so that the particles to be reformed and the cavity wall are fully contacted and rubbed, and simultaneously the particles to be reformed are rubbed; the cylindrical arrays (4) made of the low-hardness cylindrical array material are used for reducing the rotation movement speed of particles to be reformed in the cavity and increasing the contact time and the contact probability among the particles to be reformed; the particle material (6) with the initial shape, size and hardness is put into the cavity, so that the mutual friction between the particle material and the particle material to be reformed is increased, and the friction probability of the particle to be reformed is increased; the air flow moves upwards to the sealing cover plate (1) and flows out from the middle hole, and the metal net (7) in the middle hole of the sealing cover plate (1) plays a role in intercepting particles to be reformed, preventing the particles to be reformed from flying out from the upper end and also playing a role in filtering scraps; in the whole process, the established database is needed to be referenced for different types of particles, and the flow speed, flow rate and working time parameters of the air inlet are controlled to achieve the purposes of controlling the energy of the flowing fluid and modifying the size, shape and surface morphology of the particulate matters.
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 |
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| Publication Number | Publication Date |
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| CN114264529A CN114264529A (en) | 2022-04-01 |
| CN114264529B true CN114264529B (en) | 2024-08-23 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (6)
| 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 |
| 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 |
| CN110813479B (en) * | 2019-11-19 | 2020-06-23 | 黄石世星药业有限责任公司 | High-efficiency jet mill and milling process thereof |
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- 2021-12-25 CN CN202111605659.6A patent/CN114264529B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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