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Apparatus is provided for reducing contaminants in gases containing products of combustion. The apparatus is particularly advantageous for reducing airborne sulfur in smoke from burning coal. This enables more use of coal, including high sulfur coal, without the concomitant problem of acid rain. The

Apparatus is provided for reducing contaminants in gases containing products of combustion. The apparatus is particularly advantageous for reducing airborne sulfur in smoke from burning coal. This enables more use of coal, including high sulfur coal, without the concomitant problem of acid rain. The apparatus includes a duct or stack forming a first passage for directing the gases away from the source of combustion. A second duct forms a second, horizontal passage through which the gases flow from the first passage. A spray head is located at an upper portion of the second passage to direct a spray of water across the passage and into contact with the gases. A drain is located in a lower portion of the second passage to collect the water and contaminants trapped therein from the gases. The water can be cleaned and reused. The apparatus can also be employed with an internal combustion engine to reduce contaminants in the exhaust gases.

대표청구항 ▼

Apparatus for treating coal smoke containing sulfur, said apparatus comprising a smokestack of refractory and brick construction, said smokestack forming a first passage for delivering smoke away from a source of combustion, a metal housing having a mounting collar mounted on the upper end of said s

Apparatus for treating coal smoke containing sulfur, said apparatus comprising a smokestack of refractory and brick construction, said smokestack forming a first passage for delivering smoke away from a source of combustion, a metal housing having a mounting collar mounted on the upper end of said smokestack, said housing having stainless steel liners in those portions contacted by the smoke, said housing forming a second passage communicating with said first passage and extending transversely to said first passage, first spray means in an upper portion of said second passage for directing water in a spray transversely of said second passage, drain means in a lower portion of said second passage opposite said spray means for receiving and collecting water from said spray means, a drain line communicating with said drain means, said housing forming a third passage communicating with said first passage and extending transversely to said first passage, second spray means in an upper portion of said third passage for directing water in a spray transversely of said third passage, second drain means in a lower portion of said third passage opposite said second spray means for receiving and collecting water from said second spray means, a second drain line communicating with said second drain means, a water supply line communicating with said spray means, a water container for receiving water from said drain lines, said water container having a weir for removing sulfur and other light contaminants from the water, pump means for supplying water from said container to said water supply line, and a filter between said water container and said pump means for removing additional contaminants from the water. Apparatus for treating gases containing combustion products comprising means forming a first passage for delivering the gasses away from the source of combustion, means forming a second passage communicating with an upper end of said first passage means, first spray means in an upper portion of said second passage means for directing water in a spray transversely of said second passage means, first drain means in a lower portion of said second passage means opposite said spray means for receiving and collecting water from said spray means, a drain line communicating with said drain means, third passage means extending upwardly transversely from an end of said second passage means, fourth passage means extending transversely from an upper end of said third passage means and being positioned above and generally parallel to said second passage means, second spray means in an upper portion of said fourth passage means for spraying water transversely across said fourth passage means, second drain means in a lower portion of said fourth passage means opposite said second spray means for receiving and collecting water from said second spray means, a second drain line communicating with said second drain means, fifth passage means extending upwardly transversely from an end of said fourth passage means, sixth passage means extending transversely from an upper end of said fifth passage means and being above and generally parallel to said second passage means and said fourth passage means, third spray means in an upper portion of said sixth passage means for spraying water transversely across said sixth passage means, third drain means in a lower portion of said sixth passage means opposite said third spray means for receiving and collecting water from said third spray means, a third drain line communicating with said third drain means, water supply lines communicating with said first, second and third spray means for supplying water thereto, a main drain line communicating with said first, second, and third drain lines, a water container for receiving water from said main drain line, said container having a weir over which contaminants which are lighter than the water can flow, a pump means for supplying water from said container to said water supply lines.