Pressurizing centrifugal dehydrator

Patent metadata

Field	Value
Publication number	US-11833458-B2
Application number	US-202017269178-A
Country	US
Kind code	B2
Filing date	Jul 13, 2020
Priority date	Nov 18, 2019
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A pressurizing centrifugal dehydrator for removing moisture includes: an inner basket into which slurry is introduced; an outer basket surrounding the inner basket; a pressurization chamber disposed in the outer basket; and a gas supplying portion for supplying gas into the pressurization chamber, wherein the gas supplied to the pressurization chamber is ejected from the pressurization chamber toward a dehydration product positioned between the outer basket and the pressurization chamber.

First claim

The invention claimed is:

1. A pressurizing centrifugal dehydrator for removing moisture, the pressurizing centrifugal dehydrator comprising:
an inner basket rotating along with an inner basket shaft and connected to a slurry supplying pipe;
an outer basket rotating along with an outer basket shaft and surrounding the inner basket;
a pressure-supplying chamber disposed inside the outer basket and outside the inner basket;
a washing water supplying nozzle that supplies washing water to the inner basket; and
a gas supplying pipe connected to the pressure-supplying chamber,
wherein the pressurizing centrifugal dehydrator is configured to remove moisture from a slurry through perforated walls of the inner basket and the outer basket by a centrifugal force by rotation of the inner basket shaft and the outer basket shaft,
wherein the inner basket shaft reciprocates to push out a dehydration product toward an area between the outer basket and the pressure-supplying chamber, and
wherein the pressure-supplying chamber ejects a gas toward the dehydration product positioned between the outer basket and the pressure-supplying chamber through a pressurization gas path formed in a circumferential surface of the pressure-supplying chamber.

2. The pressurizing centrifugal dehydrator of claim 1 , wherein the pressurization gas path comprises at least one of meshes, slits, and holes.

3. The pressurizing centrifugal dehydrator of claim 1 , wherein a slurry supplying portion hole, through which the slurry supplying pipe for supplying the slurry to the inner basket penetrates, is formed in the pressure-supplying chamber.

4. The pressurizing centrifugal dehydrator of claim 1 , wherein the gas moves outward from a central portion of the pressure-supplying chamber.

5. The pressurizing centrifugal dehydrator of claim 1 , wherein the pressure-supplying chamber includes:
a pressure-supplying chamber rotating portion that is fixed to the outer basket and rotates together with the outer basket;
a pressure-supplying chamber fixing portion that is disposed in the pressure-supplying chamber rotating portion and is fixed without rotating; and
a rotating-fixing connection portion disposed between the pressure-supplying chamber rotating portion and the pressure-supplying chamber fixing portion.

6. The pressurizing centrifugal dehydrator of claim 5 , wherein the gas supplying pipe is connected to the pressure-supplying chamber fixing portion.

7. The pressurizing centrifugal dehydrator of claim 5 , wherein the rotating-fixing connection portion fixes the pressure-supplying chamber fixing portion while allowing rotation of the pressure-supplying chamber rotating portion.

8. The pressurizing centrifugal dehydrator of claim 1 , wherein an interval between the pressure-supplying chamber and the outer basket decreases as distance from the inner basket increases.

9. The pressurizing centrifugal dehydrator of claim 1 , wherein the dehydration product is continuously discharged from the pressurizing centrifugal dehydrator.

Assignees

• Lg Chemical Ltd

Inventors

• Lee Sang Ho
• Shin Dae Young
• Jeong Sung Woo
• Joo Eun Jung

Classifications

• B01D33/11 Primary

  arranged for outward flow filtration · CPC title

• B01D33/82

  Means for pressure distribution · CPC title

• B04B3/02

  discharging solid particles from the bowl by means coaxial with the bowl axis and moving to and fro, i.e. push-type centrifuges · CPC title

• B04B15/12

  for drying or washing the separated solid particles · CPC title

• C08J3/12

  Powdering or granulating · CPC title