Dispersing apparatus and defoaming apparatus comprising same

Patent metadata

Field	Value
Publication number	US-11813552-B2
Application number	US-201916964041-A
Country	US
Kind code	B2
Filing date	Aug 20, 2019
Priority date	Aug 21, 2018
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

The present invention relates to a dispersion device and a defoamation device comprising the same, which provides a dispersion device comprising a dispersion plate equipped with an inclined surface extended downwards obliquely and raw material inflow nozzles formed on the inclined surface to introduce a raw material into the inclined surface; and a band spaced apart from the inclined surface of the dispersion plate to form a gap from the inclined surface, thereby being configured so that the raw material flows through the gap.

First claim

The invention claimed is:

1. A dispersion device, comprising:
a dispersion plate having an inclined surface extending downwards obliquely from a center of the dispersion plate and having raw material inflow nozzles extending through the inclined surface, the raw material inflow nozzles being configured to introduce a raw material onto the inclined surface; and
a band spaced apart from the inclined surface of the dispersion plate so as to form a gap between the band and the inclined surface, the band being configured so that the raw material flows through the gap when introduced onto the inclined surface,
wherein the gap extends between the inclined surface and a lower surface of the band, the dispersion device is configured such that all of the raw material flows on the inclined surface through the gap located below the band, and the band is fixed to the inclined surface and spaced apart from the inclined surface using a connecting member or a supporting member.

2. The dispersion device according to claim 1 , wherein the inclined surface has a semi-conical shape, and the band has a dam shape extending upwards relative to the inclined surface and extends in a ring shape in a circumferential direction of the inclined surface.

3. The dispersion device according to claim 1 , wherein the dispersion plate has a hole formed in the center and has an inner wall extending upwards and surrounding the hole, the dispersion plate also having a side surface extending downwards from a lower end of the inclined surface, and the raw material inflow nozzles are disposed adjacent to the inner wall.

4. The dispersion device according to claim 1 , wherein the band is one of 2 to 5 bands that are spaced apart from the inclined surface.

5. The dispersion device according to claim 1 , wherein the gap between the inclined surface and the band has a height of 1 to 5 mm.

6. The dispersion device according to claim 1 , wherein the inclined surface has an inclination angle of 20 to 40 degrees relative to a horizontal plane.

7. The dispersion device according to claim 1 , wherein the raw material inflow nozzles include 2 to 6 raw material inflow nozzles arranged at intervals of 60 to 180 degrees about a circumferential direction of the inclined surface.

8. A defoamation device comprising a chamber equipped with a vacuum hole connected to a vacuum pump and a discharge hole through which a defoamed raw material is discharged; and the dispersion device according to claim 1 disposed inside the chamber.

9. The defoamation device according to claim 8 , wherein the defoamation device is a falling film defoamation device, the defoamation device being configured such that after the raw material is dispersed through the dispersion device, the raw material forms a falling film while falling down along an inner wall of the chamber.

10. The defoamation device according to claim 8 , wherein the raw material is a solution containing a polymer and residual monomers.

11. The defoamation device according to claim 10 , wherein the defoamation device is configured such that when the raw material flows through the defoamation device, bubbles and residual monomers contained in the raw material are simultaneously removed, and the defoamation device is configured to achieve a residual monomer removal rate of 60% or more.

Assignees

• Lg Chemical Ltd

Inventors

• Jang Jung Kee
• Cho Jeong Hun
• Cho Joon Hee
• Im Ye Hoon
• Song Young Soo

Classifications

• B01D19/02 Primary

  Foam dispersion or prevention (during boiling B01B1/02; during fermentation C12) · CPC title

• B01F23/50

  Mixing liquids with solids (displacing one liquid by another in dispersions of solids in liquids B01D12/00) · CPC title

• D01D1/103

  De-aerating · CPC title

• B01F23/56

  by introducing solids in liquids, e.g. dispersing or dissolving · CPC title

• B01D19/0042 Primary

  modifying the liquid flow (B01D19/0021 takes precedence) · CPC title