CN214537283U - Ultrasonic-assisted wet grinding magnesium hydroxide flash drying device - Google Patents
Ultrasonic-assisted wet grinding magnesium hydroxide flash drying device Download PDFInfo
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- CN214537283U CN214537283U CN202120396431.XU CN202120396431U CN214537283U CN 214537283 U CN214537283 U CN 214537283U CN 202120396431 U CN202120396431 U CN 202120396431U CN 214537283 U CN214537283 U CN 214537283U
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Abstract
An ultrasonic-assisted wet grinding magnesium hydroxide flash drying device comprises an ultrasonic emission device (1), a flash dryer (2), a drying cylinder (3), a wet grinding stirrer (6), stirring slurry (7) and a motor (9). An ultrasonic transmitting device is arranged in the drying cylinder; the ultrasonic emission device is installed on a pipeline of a feeding port in a drying cylinder, wherein the slurry above the flash dryer enters the drying cylinder, the ultrasonic emission device carries out ultrasonic dispersion on the slurry, the dispersed slurry is subjected to flash drying to form powder by the flash dryer, and the powder is packaged in a bag through a discharging port (4). The center of the wet grinding stirrer is provided with a stirring paddle which is driven by a motor; the lower part of the wet grinding stirrer is provided with a slurry inlet (5), and the upper part of the wet grinding stirrer is provided with a slurry outlet (8). The utility model provides an among the flash drying process appear depositing and reunion problem easily, fully guarantee the dispersion of thick liquids even, improved the quality of magnesium hydrate powder.
Description
Technical Field
The utility model relates to an ultrasonic wave assists wet grinding magnesium hydrate flash drying device belongs to meticulous chemical industry technical field.
Background
The fineness of the magnesium hydroxide powder in downstream application is an important index, and the size of magnesium hydroxide particles directly influences the flame retardance, the mechanical reinforcing effect and the surface smoothness of the magnesium hydroxide particles, so that the superfine magnesium hydroxide powder is always a hot spot of industrial research.
At present, the fineness of magnesium hydroxide powder can be greatly improved by a wet grinding process, flash drying is usually adopted to dry magnesium hydroxide slurry after wet grinding, and the solid content of the slurry is generally between 70 and 80 percent, so that the slurry is easy to precipitate and agglomerate in the process of conveying the slurry to the flash drying.
Disclosure of Invention
The utility model aims at providing an ultrasonic wave is assisted wet grinding magnesium hydrate flash drying device for better messenger's magnesium hydrate powder dispersion is even, prevents that the powder from appearing deposiing and reuniting.
The utility model discloses the technical scheme who realizes as follows, a supplementary wet grinding magnesium hydrate flash drying device of ultrasonic wave, including drying cylinder, wet grinding mixer, flash dryer and ultrasonic emission device.
The ultrasonic emission device is arranged on a pipeline of a feeding port in the drying cylinder, wherein the slurry above the flash dryer enters the drying cylinder, the ultrasonic emission device carries out ultrasonic dispersion on the slurry, and the dispersed slurry is subjected to flash drying by the flash dryer to form powder.
The wet grinding stirrer is of a vertical cylinder structure, the center of the wet grinding stirrer is provided with a stirring paddle, and the stirring paddle is driven by a motor arranged at the top of the wet grinding stirrer; the lower part of the wet grinding stirrer is provided with a slurry inlet, and the upper part of the wet grinding stirrer is provided with a slurry outlet; and a slurry outlet at the upper part of the wet grinding stirrer is connected with a feed inlet of the drying cylinder through a pipeline.
The drying cylinder is of a vertical cylindrical structure, the bottom of the drying cylinder is in an inverted conical shape, and a discharge hole is formed in the bottom end of the drying cylinder; the dried powder is output from a discharge port.
The utility model discloses the device carries out the supersound dispersion to thick liquids before the flash drying, has avoided thick liquids to appear deposiing and reuniting, and the dispersion of fully having guaranteed thick liquids is even, and the magnesium hydrate powder particle diameter of messenger's preparation is thinner, and particle distribution is more even, is showing the quality that has promoted the magnesium hydrate powder.
The utility model has the advantages of solving the problem of easy precipitation and agglomeration in the flash evaporation drying process, fully ensuring the uniform dispersion of the slurry and improving the quality of the magnesium hydroxide powder; the device of the utility model is simple and convenient to operate and fully automatically controlled; the device of the utility model has no dust, green and environmental protection, and no industrial pollution.
Drawings
Fig. 1 is a schematic structural diagram of the ultrasonic-assisted wet grinding magnesium hydroxide flash drying device of the present invention;
in the figure, 1 is an ultrasonic wave transmitting device; 2 is a flash dryer; 3 is a drying cylinder; 4 is a discharge hole; 5 is a slurry inlet; 6 is a wet grinding stirrer; 7 is a stirring paddle; 8 is a slurry outlet; and 9 is a motor.
Detailed Description
The specific embodiment of the present invention is shown in fig. 1.
The ultrasonic-assisted wet grinding magnesium hydroxide flash evaporation drying device comprises an ultrasonic emission device 1, a flash evaporation dryer 2, a drying cylinder 3, a wet grinding stirrer 6, a stirring paddle 7 and a motor 9.
The drying cylinder 3 is a stainless steel cavity with the diameter of 2m and the height of 3 m; the bottom is in an inverted cone shape, and the diameter of a discharge hole 4 at the bottom end is 15 cm; the diameter of the slurry inlet 5 is 10cm, and the slurry inlet is connected with the flash dryer 2 through a pipeline; the ultrasonic wave emitting device 1 is arranged at the periphery of a slurry inlet pipeline at the upper end of the flash dryer 2.
The wet grinding stirrer 6 is of a vertical cylinder structure, the height of the vertical cylinder structure is 10m, and the diameter of the vertical cylinder structure is 1.5 m; the center of the wet grinding stirrer is provided with a stirring paddle 7, and the stirring paddle 7 is made of alloy material; the upper part of the wet grinding stirrer is provided with a slurry outlet, and the lower part of the wet grinding stirrer is provided with a slurry inlet; the diameters of the slurry inlet 5 and the slurry outlet 8 are both 8 cm; the motor 9 is arranged at the top of the wet grinding stirrer, and the power of the motor is 250KW, and is used for driving the stirring paddle 7.
The process flow of the device of the embodiment is as follows: the prepared slurry with certain solid content is conveyed into a wet grinding stirrer 6 through a slurry inlet 5, and a motor 9 drives a stirring slurry 7 to carry out wet grinding; the ground slurry is conveyed to a flash dryer 2 through a slurry outlet 8, and the slurry in the conveying process is subjected to ultrasonic dispersion in an ultrasonic transmitting device 1; then the dispersed slurry is subjected to flash evaporation drying by a flash evaporation dryer 2 to obtain magnesium hydroxide powder; finally, the magnesium hydroxide powder is packaged in a bag through a discharge port 4.
Claims (4)
1. The utility model provides an ultrasonic wave assists wet grinding magnesium hydroxide flash drying device, includes a drying section of thick bamboo, wet grinding mixer and flash dryer, its characterized in that: an ultrasonic transmitting device is arranged in the drying cylinder; the ultrasonic emission device is arranged on a pipeline of a feeding port in the drying cylinder, wherein the slurry above the flash dryer enters the drying cylinder, the ultrasonic emission device carries out ultrasonic dispersion on the slurry, and the dispersed slurry is subjected to flash drying by the flash dryer to form powder.
2. The flash evaporation drying device for the ultrasonic-assisted wet grinding of magnesium hydroxide according to claim 1, characterized in that: the wet grinding stirrer is of a vertical cylinder structure, the center of the wet grinding stirrer is provided with a stirring paddle, and the stirring paddle is driven by a motor arranged at the top of the wet grinding stirrer; the lower part of the wet grinding stirrer is provided with a slurry inlet, and the upper part of the wet grinding stirrer is provided with a slurry outlet.
3. The flash evaporation drying device for the ultrasonic-assisted wet grinding of magnesium hydroxide according to claim 1, characterized in that: and a slurry outlet at the upper part of the wet grinding stirrer is connected with a feed inlet of the drying cylinder through a pipeline.
4. The flash evaporation drying device for the ultrasonic-assisted wet grinding of magnesium hydroxide according to claim 1, characterized in that: the bottom of the drying cylinder is provided with a discharge hole, and the dried powder is output from the discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396431.XU CN214537283U (en) | 2021-02-23 | 2021-02-23 | Ultrasonic-assisted wet grinding magnesium hydroxide flash drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396431.XU CN214537283U (en) | 2021-02-23 | 2021-02-23 | Ultrasonic-assisted wet grinding magnesium hydroxide flash drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214537283U true CN214537283U (en) | 2021-10-29 |
Family
ID=78235868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120396431.XU Active CN214537283U (en) | 2021-02-23 | 2021-02-23 | Ultrasonic-assisted wet grinding magnesium hydroxide flash drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214537283U (en) |
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2021
- 2021-02-23 CN CN202120396431.XU patent/CN214537283U/en active Active
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