Drying and gas or vapor contact with solids – Process – Gas or vapor contact with treated material
Patent
1996-10-18
1998-02-17
Sollecito, John M.
Drying and gas or vapor contact with solids
Process
Gas or vapor contact with treated material
34538, F26B 300
Patent
active
057180628
ABSTRACT:
In a method for preventing the occurrence of an explosive state in a gas mixture, especially of solvents in air, in an essentially confined space, virtually complete oxidation of at least part of the gas mixture taking place, either the temperature difference .DELTA.T between the temperatures of the gas mixture before and after the oxidation is determined, and if the temperature difference .DELTA.T is greater than a maximal permissible temperature increase .DELTA.T.sub.max, safety measures are taken, or the temperature T.sub.1 of the gas mixture before the oxidation and the temperature T.sub.2 of the gas mixture after the oxidation are measured, and the measured temperatures T.sub.1 and T.sub.2 are compared with a minimum temperature T.sub.min before oxidation of the gas mixture and a maximum temperature T.sub.max after oxidation of the gas mixture, the difference between T.sub.max and T.sub.min being less than, or equal to, the maximal permissible temperature increase .DELTA.T.sub.max, and if the measured temperatures T.sub.1 and T.sub.2 are outside the interval determined by the maximum and minimum temperatures T.sub.max and T.sub.min, safety measures are taken. In addition, the use of this method in drying webs printed with ink, and an appliance for this purpose are described.
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Gravini Steve
Heidelberg Contiweb B.V.
Sollecito John M.
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