| 摘要 |
PURPOSE:To make it possible to perform low-temperature drying in a short time by measuring a temperature of a combustion gas passing among electrode plates and changing from the whole exhaustion drying process to the circulation drying process when the measured temperature attains to a set temperature. CONSTITUTION:After a plurality of lead storage battery's cathode plates 9 are chemicalized and rinsed, they are housed inside a drying device 1. An air flowing-in damper 4 and an exhaustion damper 5 are completely opened and a return damper 6 is completely closed, then a drying operation is started. A combustion gas generated by a burner 2 is made to pass among the cathode plates 9 by a blower 3, and next it is exhausted. A temperature of the combus tion gas is measured with a temperature sensor 7. At a time when this tempera ture attains to 50Angstrom , the air flowing in damper 4 is closed to adjust the amount of air taken from outside to be the lowest limit necessary for the combustion of the burner, and concurrently the exhaustion damper 5 is closed and the return damper 6 is completely opened so that circulation drying is performed. Thus a transfer from the whole exhaustion drying process to the circulation drying process is performed at a tine when the content of water in the cathode plates is 2wt% or less. |
