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Venturi scrubber plate, waste capture system, and method

a waste capture system and scrubber plate technology, applied in the field of fluid curtain scrubbing, can solve the problems of high cost of downtime and filter requirements for general maintenance and cleaning of waste capture systems, droplets and/or particles, and ineffectiveness of such conventional waste capture systems including scrubbers to entrain and remove waste gases

Inactive Publication Date: 2004-06-17
GRAHAM PACKAGING CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effectiveness of such conventional waste capture systems including scrubbers to entrain and remove waste gases, droplets and / or particles leaves much to be desired, however.
The costs of downtime and filters required for general maintenance and cleaning of waste capture systems remains excessive, particularly waste paint capture systems where accumulations on booth surfaces is a substantial problem.

Method used

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  • Venturi scrubber plate, waste capture system, and method
  • Venturi scrubber plate, waste capture system, and method
  • Venturi scrubber plate, waste capture system, and method

Examples

Experimental program
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Effect test

Embodiment Construction

[0053] 1. Venturi Scrubber Design Calculations:

[0054] The industry standard air velocity for effective water wash paint overspray scrubbing is 1500 linear feet per minute-7500 linear feet per minute. This is a linear velocity measured across the throat of the primary scrubbing section. Water and paint-laden air will not effectively impact and mix below this stated velocity. The velocity must be high enough for the kinetic impact energy of the paint particles and wash water to overcome surface tension.

[0055] 2. Booth Configuration:

[0056] The throat width is 16 feet. The throat height is 0.75 feet. The effective throat area is 12 square feet. The booth evacuation volume is 7000 cubic feet per minute. Thus, the effective air flow velocity at the throat is 7500 cubic fee per minute.times.12 sq.ft.=625 linear feet per minute.

[0057] 3. The Venturi Scrubber Plate:

[0058] The effective throat area is 3.98 square feet. The venturi area for a 5.63 inch diameter orifice is 0.173 square feet. Wh...

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Abstract

A venturi scrubber plate for a waste capture system and method for a waste material entrained in a fluid flow includes an enclosure having a flood sheet over which a liquid flows into a collection trough, an exhaust device which draws the fluid flow from the enclosure, across the collection trough, and through a throat section to a primary scrubber section, the venturi scrubber plate including a plate which is mounted on and substantially covers the collection trough, which has defined therein a plurality of holes, and through which the fluid flow containing the waste material flows, wherein the plate imposes a venturi effect on the fluid flow effective to accelerate the fluid flow so that turbulent mixing of the fluid flow containing the waste material and the liquid takes place and results in improved capture of waste material by the liquid ahead of the primary scrubber section.

Description

[0001] 1. Field of the Invention[0002] This invention relates to a new and useful invention concerning fluid curtain scrubbing of gas borne waste material, a scrubber device, and a method for capture of the gas borne waste materials. The waste material may be a liquid waste entrained in a gas, such as paint entrained in air after spraying the paint onto an article in a spray booth, a particulate waste entrained in a gas, such as dust contained in flue gas, and / or a gaseous waste, such as NO.sub.x or SO.sub.x contained in flue gas, by way of example but not limitation. The fluid curtain may be a gas such as air or a liquid such as water or a solvent.[0003] More particularly, the invention relates to a venturi scrubber plate and a waste capture system and method employing the venturi scrubber plate. In one embodiment useful as a waste paint capture system for a paint spraying booth, water flows down a flood sheet positioned downstream of paint spray heads and entrains paint overspray ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B01D47/10B01D53/50B01D53/56
CPCB01D47/10B01D53/504Y10S55/46Y10S261/54B01D53/56
Inventor VARONE, RUSSELLDEITZ, MICHAEL SHANE
Owner GRAHAM PACKAGING CO LP
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