Scrubber filter
OwnerDonald E. Richardinventor
Life of this patent
Estimating the term…
Abstract
A scrubber filter used, for example, in connection with a flooded bed scrubber system, characterized as a series of nylon or plastic brushes arranged, in rows, within a frame and overlaid with mesh, where the filter is disposed, during use, in a tilted relationship, i.e. tilts forward in the direction of oncoming contaminated air. In an alternative approach, the filter may be oriented angularly in a lateral direction with respect to such contaminated air. In any event, the density of the brushes at the tilted/angled position serves for the effective capture of micron particles, where larger particles are lodged, and subsequently displaced, on and from the aforesaid mesh.
Claims20
In a method of scrubbing air with a flooded bed scrubber to remove dust particles generated by underground mining the improvement comprising conducting air containing dust through a flooded bed scrubber, spraying water into the air containing dust, conducting the air containing dust and water spray through a filter, the filter comprising a plurality of spaced apart brushes, the brushes being flexible bristles extending outwardly from axial cores, the brushes being placed with the cores thereof extending substantially parallel and extending substantially across the flow of air containing the dust and water spray, the axes of the brushes being inclined at an angle to the perpendicular of the air flow, the inclined filter brushes in this configuration presenting an apparent dense aspect to the air flow, the filter being effective, in this configuration, to scrub the dust and water spray without plugging and without excessive pressure drop in normal use and being effective to prevent stalling and excessive noise of the scrubber fan, but also being effective to maintain sufficient pressure drop to produce effective scrubbing of dust particles from the air stream and prevent substantial entrainment of dust particles in the scrubbed air stream, the filter being effective to be rapidly cleaned and returned to service with periodic maintenance in regular use.
In an underground mining machine having a flooded bed scrubber for removing dust particles, generated by the operation thereof, from the surrounding air, the improvement comprising a filter positioned in the mining machine scrubber, the mining machine scrubber having an intake duct for dust containing air, water sprays for scrubbing the dust containing air, disentrainment baffles for demisting the scrubbed air, a fan for propelling air through the mining machine scrubber and an outlet duct for scrubbed air, the filter being a removable filter positioned in the scrubber and having a plurality of brushes mounted in a frame, the brushes being spaced apart in the frame, the brushes being flexible bristles extending outwardly from axial cores, the brushes being placed in the frame with the cores thereof substantially parallel, the filter being positioned in the mining machine scrubber and extending substantially across the scrubber and the flow of dust containing air and water spray, the filter being positioned with the axes of the brushes inclined at an angle to the perpendicular of the air flow, the inclined filter brushes in this configuration providing means for presenting an apparent dense aspect to the air flow effective to scrub the dust and water spray without plugging, being effective to scrub the dust containing air without excessive pressure drop in normal use and being effective to prevent stalling of the scrubber fan, the filter also providing means for maintaining sufficient pressure drop in the scrubber to product effective scrubbing of the dust particles from the air stream and prevent substantial entrainment of dust particles in the scrubbed air stream, the filter providing means for rapidly cleaning dust particles held thereon from the filter to permit the filter to be rapidly returned to service with periodic maintenance in regular use.
Dependencies are inferred from the claim text.