Coating processes – Removable protective coating applied – Metal base
Patent
1985-06-19
1987-01-27
Beck, Shrive P.
Coating processes
Removable protective coating applied
Metal base
427181, 427230, 427236, 134 2, 134 2213, 165 95, B05D 112
Patent
active
046393811
ABSTRACT:
Method and apparatus for reducing the sootblowing requirements for boiler heat exchanger tubes which also reduces boiler downtime and production losses as well as energy requirements. The method involves the steps of programming the feeding of chemicals to the boiler in timed relation to a sootblowing cycle to establish a cleavage plane on the tube surfaces. The apparatus includes the feeding of a measured amount of powdered chemicals to the boiler following each sootblowing operation, which includes a storage vessel charged with a measured amount of chemical that is emptied during a chemical application cycle.
REFERENCES:
patent: 1607554 (1926-11-01), Meyer
patent: 3593781 (1971-07-01), Fransman
patent: 4240472 (1980-12-01), Sriniuas
patent: 4366855 (1983-01-01), Spitz
patent: 4456635 (1984-06-01), Albanese et al.
Nalco-152, Slag Control Treatment, Nalco Chem. Co., Oak Brook, Illinois, 1 page, 6/1975.
Nalco-156-C, Slag Control Agent For Boilers, Kilns, Incinerators, Nalco Chem. Co., Oak Brook, Illinois, 1 page, 1/1980.
Kleefisch Blaise H.
Snyder Robert G.
Wierzba Robert B.
Beck Shrive P.
Nalco Chemical Company
Premo John G.
Zickert Lloyd L.
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