De-mister device

Abstract

Abstract De-mister device comprising essentially one or more belts of open mesh or open weave material, resistant to the corrosion and temperature conditions of its operating environment, supported by a pair of power-driven pulleys or rollers respectively journaled in a pair of receptacles, supported by a framework to connect, through lateral openings with corresponding openings on opposite sides of a duct or stack, the belts passing through said openings across the duct or stack with their flat sides facing the direction of flow of particle-laden gases passing through the duct or stack; and a manifold or lance within each receptacle, extending parallel to each pulley or roller - e.g., between the two lengths of belt supported by the pulleys - adapted to direct pressurized jets of air, steam or other fluid against the belts to remove particulate material accumulated on the belts and direct it toward the base of the receptacle. Preferably, one length of belt between the pulleys is reversed by passage over a guide bar between the pulley and the adjacent opening to the duct or stack so as to maintain a 180* twist between the roller and the guide bar - such twist being thus maintained at both ends of the length of belt if the belt itself includes no twist, and at one end if the belt itself includes a twist so as to constitute it a Moebius surface. In this way, the same surface of the two lengths of belt between the supporting pulleys or rollers face the oncoming gas stream in the duct or stack.

Inventors

• 👤 R Johnston
• 👤 D Docherty
• 👤 R Arrington

Bibliographic Details