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Modular Pulse Jet Fabric Filter

a fabric filter and pulse jet technology, applied in the direction of filtration separation, lighting and heating apparatus, separation processes, etc., to achieve the effect of shortening the field erection time, reducing the cost of erection, and improving quality and reliability

Inactive Publication Date: 2014-12-25
CLYDE BERGEMANN POWER GRP AMERICAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach reduces field erection labor and time, enhances quality and reliability, and lowers costs by minimizing field welding and fabrication, while maintaining high structural integrity and efficiency.

Problems solved by technology

If this approach is not feasible, for example due to public road transportation length limitations, the hoppers are also fabricated in sections and shipped to the site, bolted and seal welded in place, without requiring additional structural welds in the field.

Method used

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  • Modular Pulse Jet Fabric Filter
  • Modular Pulse Jet Fabric Filter
  • Modular Pulse Jet Fabric Filter

Examples

Experimental program
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Effect test

Embodiment Construction

[0019]This invention may be embodied in a structure and fabrication technique for a modular pulse jet fabric filter (PJFF) for a furnace unit of a coal-fired or other types of power plant that produce heavy particulate loads in the flue gas. The modular PJFF can be used to provide more cost effective PJFF structures and fabrication techniques at both new and existing power plants including electric power generating stations and large process industries, such as pulp and paper, steel, petrochemical, cogeneration power boilers, and other industries requiring PJFF for air emissions. Although there are many different specific PJFF configurations, a representative PJFF for the purpose of illustrating the principles of the invention may include 10 compartments that each include 816 tubular filter bags, for a total of 8,160 in the complete PJFF.

[0020]The compartments are formed from “shop-fabricated” quarter sections, which are transported to the job site by truck over public roads. The qu...

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Abstract

A modular design for large pulse jet fabric filters (PJFF) is divided into similar compartments, which are each “shop-fabricated” in quarter sections prior to delivery to the power plant site. The quarter sections of the compartments are modular and sized so that they can be fabricated at a shop located away from the power plant site and transported by truck over public roads to the power plant site. Once delivered to the site, the quarter sections are bolted together and seal welded to form a PJFF compartment, without requiring additional internal fabrication or welding. The assembled compartment is then lifted onto the support structure as an assembled unit and bolted and / or welded in place. The additional components of the PJFF may also be shop-fabricated offsite to further the benefits of the modular design.

Description

CROSS-REFERENCE TO RELATED CASES[0001]This application is a divisional of U.S. patent application Ser. No. 13 / 748,651, filed on Jan. 24, 2013, pending, which is incorporated by reference herein in its entirety.BACKGROUND[0002]Pulse jet fabric filters (PJFFs) are industrial filter buildings located at coal-fired and other types of power plants that produce heave particulate loads in the furnace exhaust gas. The furnace may also be referred to as a boiler (even though the furnace need not generate steam for the present invention to be applicable), and the exhaust gas may be referred to as flue gas for descriptive convenience. The PJFF is used to remove the particulates from the flue gas as part of the “scrubber” exhaust air cleaning system. The PJFF typically contains thousands of long, tubular filter bags in the approximate range of 4 to 10 inches across and 15 to 33 feet (5 to 10 meters) long. The boiler exhaust gas is directed through the filters to remove the particulates from the...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B01D46/00
CPCB01D46/0057B01D46/0013B01D46/02Y10T29/49826B01D46/71F23J15/025E04B1/34331E04B1/68B01D46/66
Inventor GOLUB, GREGORY J.SWARTZ, GREGORY C.DUTCHESS, MARK STEVEN
Owner CLYDE BERGEMANN POWER GRP AMERICAS
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