ELECTROFILTER FOR THE PURIFICATION OF SMOKE FROM IN PARTICULAR MINOR STRAW BOILERS

摘要

An electrofilter for smoke purification having a set of mutually parallel positive electrodes, which form a number of mutually parallel ducts through which the smoke to be purified can pass and by a set of negative electrodes, which are suspended midway between the collection plates, the collection plates are designed as circular plates mounted at a uniform mutual distance on a rotating shaft, and the discharge wires are suspended from a common frame on which a vibrator is mounted which can vibrate and thus clean the discharge wires of collected dust. On the frame of the electrofilter between each collection plate, stationary scrapers are mounted which bear against each collection plate and clean them of dust.

主权项

1. An electrofilter for smoke purification consisting of several sets of positive collection plates (1) and negative discharge wires (3), where the plates (1) consist of steel plates which are earthed by a wire (1′) and fixed in parallel at a mutual distance of 100 to 400 mm, whereby parallel ducts (2) are created between the collection plates (1) through which the smoke to be purified passes in a horizontal flow, and the negative discharge wires (3) are suspended midway between the collection plates (1),
characterised by the fact that the electrofilter (6) is designed with a row of preferably circular collection plates (1) which are mounted at a uniform mutual distance on a rotating shaft (8), that between each collection plate (1) and a neighbouring plate one or more discharge wires (3) are mounted which are suspended from a common frame (4) on which a vibrator (5) is mounted which can vibrate and thus clean the discharge wires (3) of collected dust, that on the frame of the electrofilter (6) between each pair of collection plates (1) stationary scrapers (10) are mounted for each collection plate (1) which bear against and are able to clean the collection plates of dust, and that each collection plate (1) is designed with evenly distributed cutouts (15) or through bores which can absorb any shear, expansion or contraction of the collection plates (1) owing to temperature fluctuations so that the collection plates remain fully or approximately plane in operation, and that furthermore at each collection plate guide rollers are mounted that bear against the collection plate and keep this plane to ensure an efficient scraping process.