Pulse detonation particulate agglomerator

a technology of particulate agglomerator and pulse detonator, which is applied in the direction of auxillary pretreatment, separation process, lighting and heating apparatus, etc., can solve the problem of agglomeration of particula

Inactive Publication Date: 2007-06-14
UNITED TECH CORP
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0003] The burning of fuel (e.g., coal) in industrial equipment generates an exhaust flow containing airborne particulate. The flow is passed through a pulsed detonation particulate agglomerator. The agglomerator is cyclically operated by introducing a fuel and oxidize

Problems solved by technology

The combustion generates a shock wave to which the flow is exposed causing agglomeration of the particulate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pulse detonation particulate agglomerator
  • Pulse detonation particulate agglomerator
  • Pulse detonation particulate agglomerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012]FIG. 1 shows a schematic view of a pulverized coal-fired electric power plant 20. The exemplary plant may be an electrical power plant having a steam generator 22 providing steam to a steam turbine electrical generator unit 24. Along a combustion flowpath, the steam generator 22 has an upstream radiant (furnace) zone 26 followed by a downstream convective (backpass) zone 28. The steam generator 22 receives input flows of coal 30, air 32, and water 34.

[0013] The coal 30 passes through a pulverizer system 40. The air flow 32 passes through an air heater 50 (discussed below) at a downstream end of the backpass 28. The backpass heat exchangers may comprise vertical / streamwise or horizontal / transverse tube arrays. The air enters the furnace 42 as a preheated flow 52 partially including entrained pulverized coal 44. The furnace serves as a combustor combusting the coal and air mixture. A combustion flow 54 passes downstream along the combustion flowpath.

[0014] The water flow 34 en...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The burning of fuel (e.g., coal) generates an exhaust flow containing particles. The flow is passed through a pulsed combustion agglomerator. The agglomerator is cyclically operated by introducing a fuel and oxidizer charge to at least one conduit, initiating combustion of the charge. The combustion generates a shock wave to which the flow is exposed causing partial agglomeration of the particles. The flow is passed through a particle removal system and exhausted.

Description

BACKGROUND OF THE INVENTION [0001] The invention relates to coal-fired industrial equipment. More particularly, the invention relates to the control of particulate emissions from coal-fired industrial equipment such as pulverized coal-fired utility boilers. [0002] Particulate emissions from coal-fired industrial equipment have plagued industry for centuries. Among well developed technologies for removing particulate are bag houses, cyclonic separators, and electrostatic precipitators. One area of recent attention is acoustic agglomeration. U.S. Pat. No. 6,749,666 of Meegan, Jr. identifies use of a modulated acoustic field to induce particulate agglomeration. A device is used to generate a modulated acoustic field of a desired sound pressure level and frequency. The sound waves cause small particulate to agglomerate to form larger particulate that is easier to capture with conventional equipment. SUMMARY OF THE INVENTION [0003] The burning of fuel (e.g., coal) in industrial equipment...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F23B90/00
CPCB01D51/08
InventorCHENEVERT, BLAKE C.
OwnerUNITED TECH CORP