Heating – Processes of heating or heater operation
Patent
1979-06-15
1980-12-30
Camby, John J.
Heating
Processes of heating or heater operation
34 86, 432 28, 432 72, 432 90, F27D 1700, F26B 1900
Patent
active
042420849
ABSTRACT:
A system of air pollution control and heat recovery is provided for an arrangement of industrial ovens, especially for drum manufacture.
A plurality of paint bake ovens of various capacities, lengths and heat input are provided for multi-stage processing in the manufacture of drums and lids therefor. A supply of high temperature water is provided for multi-stage cleaning and rinsing in the manufacturing operation.
The combined exhaust from all of the ovens at 25% LEL is preheated in a heat exchanger and then all of the combustible components are burnt off by passing through the flames of an incinerator grid burner. The effluent from the burner first passes through the heat exchanger to preheat said oven exhaust gases and then through hot water coils to provide all of the necessary hot water for the system. High pressure hot water (275.degree.) is provided in this heat exchange operation. The hot gasses from the last heat exchanger, completely free of combustible contaminates, are mixed with fresh air to supply hot air for the dryers used in the process. There is a substantially complete recovery of heat and the gasses discharged to atmosphere meet air quality standards.
REFERENCES:
patent: 3472498 (1969-10-01), Price et al.
patent: 4067382 (1978-01-01), English
patent: 4176162 (1979-11-01), Stern
Camby John J.
Mosely Neal J.
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