Direct flame drying apparatus

Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically

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Details

34105, 101 41, 118 47, 432124, 432230, F27B 914

Patent

active

040521524

ABSTRACT:
Cylindrical two-piece cans are decorated with thermally curable inks and coatings and are placed on generally horizontally extending pins of a pin-chain conveyor. The cans are then moved through a flame drying chamber to dry the inks and coatings by direct impingement of flame on the can surface. The cans are thereafter moved through a cooling chamber and then are discharged from the pin-chain conveyor which circulates back to the decorator unit to receive newly decorated cans. The pins of the pin-chain conveyor can be at an angle to the horizontal and the pins can have brushes or the like to grip the internal surface of the can. The flame dryer unit consists of gas and air-fed burner heads disposed in one of several different patterns along the path taken by the cans through the flame dryer housing. Flame impinges directly on the can and the can moves through the tunnel at a speed sufficient to prevent heat damage to the can. A programmable controller controls the number of burners in use at any one time and the individual thermal output of any burner as a function of the speed of the can or pin chain conveyor through the oven.

REFERENCES:
patent: 998900 (1911-07-01), Hodgson
patent: 2355459 (1944-08-01), Miskella
patent: 2501367 (1950-03-01), Wehmiller et al.
patent: 2561404 (1951-07-01), Nordquist
patent: 3381391 (1968-05-01), Yunghahn
patent: 3627283 (1971-12-01), Hittner
patent: 3701880 (1972-10-01), Rively et al.
patent: 3815881 (1974-06-01), McCann
patent: 3840999 (1974-10-01), Whelan
patent: 3847540 (1974-11-01), Farfaglia et al.
patent: 3935647 (1976-02-01), Aschberger

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