Dust collecting module, desulfurizing apparatus having same, and method of installing dust collecting module

Patent metadata

Field	Value
Publication number	US-11260401-B2
Application number	US-201816215632-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Oct 1, 2018
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A dust collecting module of a desulfurizing apparatus for removing sulfur oxides is easily installed and facilitates the application of a high voltage to discharge electrodes. The dust collecting module includes an arrangement of discharge electrodes and dust collecting electrodes alternately disposed and spaced apart from each other, the discharge electrodes configured to be charged to a predetermined voltage for generating a corona discharge between the discharge electrodes and the dust collecting electrodes; a first setting beam having a plurality of lower slots into which the discharge electrodes are securely inserted; and a lower frame extending in a stacking direction of the discharge electrodes to support the discharge electrodes, wherein the predetermined voltage is applied to the discharge electrodes through the lower frame and the first setting beam. The dust collecting module may further include an insulating connecting member from which the lower frame is suspended.

First claim

What is claimed is:

1. A dust collecting module comprising:
an arrangement of discharge electrodes and dust collecting electrodes alternately disposed and spaced apart from each other, the discharge electrodes configured to be charged to a predetermined voltage for generating a corona discharge between the discharge electrodes and the dust collecting electrodes;
a first setting beam having a plurality of slots into which the discharge electrodes are securely inserted; and
a lower frame extending in a stacking direction of the discharge electrodes to support the discharge electrodes,
wherein the predetermined voltage is applied to the discharge electrodes through the lower frame and the first setting beam.

2. The dust collecting module of claim 1 , further comprising
an insulating connecting member having a lower insulator an insulator and a high voltage support rod, and
wherein the lower frame is suspended from the insulating connecting member.

3. The dust collecting module of claim 2 ,
wherein the insulating connecting member consists of a plurality of insulating connecting members, and
wherein the dust collecting module further includes a tubular girder through which the plurality of insulating connecting members are inserted such that the insulating connecting members are fixedly installed inside the tubular girder.

4. The dust collecting module of claim 1 ,
wherein the discharge electrode is provided with a first reinforcing rod extending in a width direction of the discharge electrode, and
wherein the first reinforcing rod protrudes from both ends of the discharge electrode and is supported by the first setting beam.

5. The dust collecting module of claim 4 , wherein the first reinforcing rod is provided with a support protrusion passed through and joined to the first setting beam.

6. The dust collecting module of claim 4 , wherein the first setting beam includes:
a tubular support tube having a circular cross section; and
a support plate fixed to one side of the tubular support tube.

7. The dust collecting module of claim 1 , wherein the first setting beam comprises:
a lower beam including an end portion and two sidewalls protruding from the end portion, the plurality of slots of the first setting beam being formed only in the two sidewalls; and
an upper beam coupled to the lower beam, the upper beam including
a lower support portion contacting the end portion,
an outer support portion bent from the lower support portion to abut an outer sidewall of the two sidewalls,
an inclined portion bent from the outer support portion,
an upper support portion bent from the inclined portion parallel with and spaced apart from the end portion, and
an inner support portion bent downwards from the upper support portion.

8. The dust collecting module of claim 7 , wherein the first reinforcing rod is fixed to the lower beam of the first setting beam by a first weld, and the support protrusion is fixed to the upper beam of the first setting beam by a second weld.

9. The dust collecting module of claim 1 , further comprising:
two second setting beams each having a plurality of slots for maintaining a gap between the dust collecting electrodes; and
a central setting beam provided between the two second setting beams,
wherein the dust collecting electrodes are inserted into the central setting beam.

10. The dust collecting module of claim 9 , further comprising a second reinforcing rod installed on one end of the dust collecting electrodes, such that the second reinforcing rod passes through the plurality of slots formed in either of the two second setting beams.

Assignees

• Doosan Heavy Ind & Construction Co Ltd
• Doosan Heavy Ind Constr Co Ltd

Inventors

• Moon Sangchul
• Lee Jinwoon
• Lee Sangrin
• Yim Joonhyuk
• Hwang Jaedong

Classifications

• B01D53/502

  characterised by a specific solution or suspension · CPC title

• B01D53/73

  After-treatment of removed components · CPC title

• B01D53/323

  by electrostatic effects or by high-voltage electric fields · CPC title

• B01D2251/404

  of calcium · CPC title

• B03C3/66

  Applications of electricity supply techniques · CPC title