Hot And Cold Repair Of Glass Furnace
2015-11-06
Hot repair
During the operation of glass furnace, hot repair method is taken if only part of the glass furnace is eroded and not need to stop or cool down the operation of glass furnace, which can reduce the loss to a minimum.
Cold repair
Glass furnace is a core equipment of the glass factory, generally, cold repair is happened every few years, and the reasons of cold repair are as follows,
1. The refractory material which contacts the glass liquid is damaged seriously, has the risk of leakage and is difficult to partly hot repair, such as fused cast azs block, fused cast alumina block.
2. Refractory in upper structure is damaged, leakage of fire, and can not normally melt glass to liquid. And it is difficult to repair by partly hot repair.
3. The regenerator is clogged seriously which makes fuel consumption increase, the ability to melt glass reduce and the cost significantly higher.
If the glass furnace is sure to overhaul, the comprehensive careful inspection and the analysis to the entire furnace must be carried on, Such as the judgment of repairs of steel structure, feeding port, pool side wall, bridge wall, dog hole, crown, regenerator chamber. Analyze the corrosion loss of each parts which use refractory and determine the part and extent which is needed to repair and the material where is required to be changed during the overhaul. The system network technology is used to compile the detailed plan of the overhaul. Determine the date for the release, the end of the discharge, the date of stopping the furnace to cool and the beginning time to detach the furnace. Formulate the work schedule and personnel of the various parts of the kiln body.
