Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1980-01-14
1981-12-01
Adee, John
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55290, 55302, 55351, 55528, B01D 4618
Patent
active
043034209
ABSTRACT:
An air treatment apparatus for removing particulate matter and contaminants from a flow stream of air includes an air inlet chamber coupled to an air inlet duct and two spaced-apart air flow chambers communicating with the air inlet chamber at a first end and with an outlet duct at their opposite end. Disposed within each air flow chamber is a continuous belt filter arranged over a plurality of drive rollers. There are two rows of drive rollers spaced apart and arranged so as to position the filter throughout virtually the entire inner cavity of each air flow chamber. Each air flow chamber includes an opening with a cleaning subsystem positioned adjacent thereto. The cleaning subsystem includes a spray nozzle disposed above the opening and an air tube positioned interior and the filter passes across and around the air tube as it passes past the opening. Particulate material and other contaminants collected by the filter from the passing flow stream of air are loosened from the surface of the filter by means of a spray mist emitted by the spray nozzle and such contaminants and particulate material are then blown off of the "dirty" surface of the filter by air jets from the air tube. The apparatus also includes means for vacuum removal of contaminants and its structure may be adapted for humidification of heating air.
REFERENCES:
patent: 700858 (1902-05-01), Thomas
patent: 2076305 (1937-04-01), Strindberg
patent: 2516680 (1950-07-01), Culperrer
patent: 3307706 (1967-03-01), Taylor
patent: 3332215 (1967-07-01), Revell
patent: 3552098 (1971-01-01), Cochran
patent: 3664095 (1972-05-01), Asker et al.
patent: 3834132 (1974-09-01), Moser
RDT Standard bulletin M 16 3T, Division of Reactor Research and Development United States Atomic Energy Commission, Oakridge Tenn. 1974.
Tentative Standards for HEPA filters, AACC designation: CS1T, American Association for Contamination Control, Boston, Mass. 1968.
Contamination Control Principles, NASA bulletin SP-5045, chapter 5, p. 15, and Fed. Std. 209a, 1966.
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