CN215524093U - Micron-sized powder drying tower - Google Patents
Micron-sized powder drying tower Download PDFInfo
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- CN215524093U CN215524093U CN202122229231.8U CN202122229231U CN215524093U CN 215524093 U CN215524093 U CN 215524093U CN 202122229231 U CN202122229231 U CN 202122229231U CN 215524093 U CN215524093 U CN 215524093U
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Abstract
Micron-scale powder drying tower. Relate to powder drying tower technical field, concretely relates to improvement of powder drying tower air intake. The drying chamber comprises an upper straight cylinder section and a lower inverted cone section, an air inlet pipeline is arranged between the heater and the straight cylinder section, a material inlet is arranged at the top of the straight cylinder section, a volute pressure-stabilizing air supply device is further arranged at the top of the straight cylinder section, and an air inlet of the volute pressure-stabilizing air supply device is connected with the air inlet pipeline; the volute pressure-stabilizing air supply device comprises a volute-shaped surrounding vertical plate, the upper end of the vertical plate is provided with a cover plate of an integral structure, and the lower end of the vertical plate is fixedly connected with the top of the straight cylinder section; the top of the straight cylinder section is provided with a plurality of vent holes which are uniformly distributed in the volute-shaped pipeline of the vertical plate. The utility model heats the powder evenly, dries and does not agglomerate to form fine powder.
Description
Technical Field
The utility model relates to the technical field of powder drying towers, in particular to an improvement of an air inlet of a powder drying tower.
Background
When the particle size of the powder material is in the micron and sub-micron size, even sub-micron, nano-scale. Due to the refinement of the powder, the surface molecular arrangement, the electron distribution structure and the crystal structure of the powder are greatly changed, so that the powder shows unique physical and chemical properties, such as: surface effects, small-size effects, quantum effects, macroscopic tunneling effects, and the like.
Among the processes for preparing powder materials, there is a spray method which requires the use of a spray drying tower for the purpose of rapidly drying the atomized solvent to obtain a reliable powder.
But in the in-service use process, the high temperature gas of blowing in the inside of drying tower can not the equipartition inside the tower body, causes the inside temperature of tower body and wind pressure etc. to be not even enough easily, and the granularity of the powder that obtains is inconsistent, has the board caking even, seriously influences product quality.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides the micron-sized powder drying tower which can uniformly and stably distribute hot air in the drying tower and avoid inconsistent and even caking powder granularity.
The technical scheme of the utility model is as follows: the micron-sized powder drying tower comprises a tower base, wherein a heater, a drying chamber and a bag filter are sequentially arranged on the tower base, the drying chamber comprises an upper straight cylinder section and a lower inverted cone-shaped section, an air inlet pipeline is arranged between the heater and the straight cylinder section, a material inlet is arranged at the top of the straight cylinder section, a volute pressure-stabilizing air supply device is further arranged at the top of the straight cylinder section, and an air inlet of the volute pressure-stabilizing air supply device is connected with the air inlet pipeline;
the volute pressure-stabilizing air supply device comprises a volute-shaped surrounding vertical plate, the upper end of the vertical plate is provided with a cover plate of an integral structure, and the lower end of the vertical plate is fixedly connected with the top of the straight cylinder section;
the top of the straight cylinder section is provided with a plurality of vent holes which are uniformly distributed in the volute-shaped pipeline of the vertical plate.
And an air deflector is arranged below the air vent and extends downwards and obliquely along the air inlet direction.
The included angle between the air deflector and the air vent is set according to the trend that the included angle gradually increases from the outer ring of the vertical plate to the central ring.
And a filter screen is arranged between the ventilation hole and the air deflector.
A flow divider is arranged between the air inlet pipeline and the volute pressure-stabilizing air supply device and comprises an inlet and at least two outlets, the inlet is used for air inlet, the outlets are respectively inserted into the cover plate and extend into the volute-shaped pipeline of the vertical plate, and the outlets are used for air outlet.
The volute pressure-stabilizing air supply device comprises a volute vertical plate, a cover plate and a straight cylinder section, wherein the volute vertical plate is arranged on the top of the straight cylinder section, and the volute pressure-stabilizing air supply device is arranged on the top of the straight cylinder section. The turbulent flow of the air in the drying tower can be reduced as much as possible, and the powder is uniformly heated, dried and not agglomerated to form fine powder.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
figure 2 is a top view of figure 1,
figure 3 is a right side view of figure 1,
FIG. 4 is a perspective view of the volute pressure-stabilizing air supply device according to the present invention,
FIG. 5 is a perspective view of the volute pressure-stabilizing air supply device without the cover plate,
FIG. 6 is a schematic structural diagram of the volute pressure-stabilizing air supply device according to the present invention,
figure 7 is a cross-sectional view a-a of figure 6,
fig. 8 is a schematic structural diagram of another embodiment of the present invention.
In the figure, 1 is a tower base, 2 is a heater, 31 is a straight cylinder section, 32 is an inverted cone section, 4 is a bag filter, 5 is an air inlet pipeline, 6 is a material inlet, 7 is a volute pressure-stabilizing air supply device, 71 is a cover plate, 72 is a vertical plate, 73 is a vent hole, 74 is an air deflector, and 8 is a flow divider.
The arrows in the figure are the air inlet direction.
Detailed Description
The utility model is further explained by combining the attached figures 1-8, comprising a tower seat 1, wherein a heater 2, a drying chamber and a bag filter 4 are sequentially arranged on the tower seat 1, the drying chamber comprises an upper straight cylinder section 31 and a lower inverted cone section 32, an air inlet pipeline 5 is arranged between the heater 2 and the straight cylinder section 31, a material inlet 6 is arranged at the top of the straight cylinder section 31, a volute pressure-stabilizing air supply device 7 is also arranged at the top of the straight cylinder section 31, and an air inlet of the volute pressure-stabilizing air supply device 7 is connected with the air inlet pipeline 5;
the volute pressure-stabilizing air supply device 7 comprises a volute-shaped surrounding vertical plate 72, the upper end of the vertical plate 72 is provided with a cover plate 71 with an integral structure, and the lower end of the vertical plate 72 is fixedly connected with the top of the straight cylinder section 31;
the top of the straight cylinder section 31 is provided with a plurality of vent holes 73, and the vent holes 73 are uniformly distributed in the volute-shaped pipeline of the vertical plate 72.
The utility model utilizes the volute pressure-stabilizing air supply device 7 consisting of the volute surrounding vertical plate 72, the cover plate 71 and the top of the straight cylinder section 31 to guide the entering hot air along the volute surrounding vertical plate 72, so that the hot air is blown from the outermost side to the center and enters the inside of the drying chamber along the way through the vent hole 73 in the volute pipeline of the vertical plate 72, and the hot air can uniformly enter the drying chamber. The turbulent flow of air in the drying chamber can be reduced as much as possible, and the powder is uniformly heated, dried and not agglomerated to form fine powder.
An air deflector 74 is arranged below the air vent 73, the air deflector 74 extends obliquely downwards along the air inlet direction, the air deflector 74 can further guide hot air, the advancing direction of the hot air is changed, the hot air blown downwards is changed into the hot air blown downwards in an oblique mode, the stroke of the hot air is increased, and the temperature in the drying chamber is more balanced.
The included angle between the air deflector 74 and the vent hole 73 is set in a gradually increasing trend from the outer ring of the vertical plate 72 to the central ring. Hot air enters from the outer side along the vertical plate 72 and is blown into the center, and in the process, the air speed of the hot air is gradually reduced, and the air volume is also gradually reduced; in order to balance the air quantity, the air quantity at the outer side of the drying chamber and the air quantity at the inner side tend to be consistent, the included angle between the air deflector 74 and the air vent 73 at the outer ring is set to be smaller, so that the air inlet quantity can be reduced under the condition of higher air speed, and the included angle between the air deflector 74 and the air vent 73 at the inner ring is set to be larger, so that the air inlet quantity can be increased under the condition of lower air speed.
A filter screen is arranged between the vent holes 73 and the air guide plates 74, so that hot air is further filtered, and pollution to powder inside the drying chamber is avoided.
A flow divider 8 is arranged between the air inlet pipeline 5 and the volute pressure-stabilizing air supply device 7, the flow divider 8 comprises an inlet and at least two outlets, the inlet is used for air inlet, the outlets are respectively inserted into the cover plate 71 and extend into the volute-shaped pipeline of the vertical plate 72, and the outlets are used for air outlet. The outer ring and the inner ring of the vertical plate 72 are simultaneously introduced with hot air through the flow divider 8, so that the internal heat balance of the drying chamber is further ensured.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (5)
1. The micron-sized powder drying tower comprises a tower base, wherein a heater, a drying chamber and a bag filter are sequentially arranged on the tower base, the drying chamber comprises an upper straight cylinder section and a lower inverted cone section, an air inlet pipeline is arranged between the heater and the straight cylinder section, and a material inlet is arranged at the top of the straight cylinder section;
the volute pressure-stabilizing air supply device comprises a volute-shaped surrounding vertical plate, the upper end of the vertical plate is provided with a cover plate of an integral structure, and the lower end of the vertical plate is fixedly connected with the top of the straight cylinder section;
the top of the straight cylinder section is provided with a plurality of vent holes which are uniformly distributed in the volute-shaped pipeline of the vertical plate.
2. The micron-sized powder drying tower according to claim 1, wherein an air deflector is arranged below the air vent, and the air deflector obliquely extends downwards along an air inlet direction.
3. The micron-sized powder drying tower according to claim 2, wherein an included angle between the air deflector and the vent hole is set in a gradually increasing trend from an outer ring of the vertical plate to a central ring.
4. The micron-sized powder drying tower according to claim 2, wherein a filter screen is disposed between the air vent and the air deflector.
5. The micron-sized powder drying tower according to claim 1, wherein a flow divider is further disposed between the air inlet pipeline and the volute pressure-stabilizing air supply device, the flow divider includes an inlet for air inlet and at least two outlets, the outlets are respectively inserted into the cover plate and extend into the volute-shaped duct of the vertical plate, and the outlets are for air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122229231.8U CN215524093U (en) | 2021-09-14 | 2021-09-14 | Micron-sized powder drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122229231.8U CN215524093U (en) | 2021-09-14 | 2021-09-14 | Micron-sized powder drying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215524093U true CN215524093U (en) | 2022-01-14 |
Family
ID=79796986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122229231.8U Active CN215524093U (en) | 2021-09-14 | 2021-09-14 | Micron-sized powder drying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215524093U (en) |
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2021
- 2021-09-14 CN CN202122229231.8U patent/CN215524093U/en active Active
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