Apparatus and methods for large particle ash separation from flue gas using screens having semi-elliptical cylinder surfaces

摘要

Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.

主权项

1. Apparatus for separating ash particles from a flue gas, said apparatus comprising:
a duct for channeling said flue gas to a destination equipment; and a screen that comprises a plurality of semi-elliptical cylinder surfaces, said semi-elliptical cylinder surfaces comprising holes through which said flue gas flows and through which said ash particles will not pass, said screen having a single layer for performing said separating and adapted so that said ash particles fall away from said screen and collect outside of said screen, said screen being disposed in said duct's lumen such that said flue gas channeled to said destination equipment via said duct flows through said screen, wherein said screen is made of metal and coated with ceramic metal composite.