How to take care after the closure of industrial furnaces

In the long-term disabled industrial furnace, the furnace should pay great attention to external corrosion maintenance problems.
First, in the industrial furnace shut down after cooling, heating surface must be thoroughly cleaned of dust and grate upper furnace bottom ash. And then to maintain a certain degree of natural ventilation flue. Generally, in order to be in the furnace moisture, placed in the flue desiccant. As with quicklime as a desiccant, each cubic meter chamber or flue should generally be placed around 3kg. After placing all the ventilation should be tightly closed doors. Variable to be replaced after lime powder.
Locations such as industrial furnace room lying, flood tide serious ground during shutdown when a small fire should be used frequently baked and placed desiccant combined approach. If the industrial furnace shut down for a long time, after the complete removal of soot in the furnace metal exterior topcoat Hongdan oil or other anti-corrosion paint.
As for the inside of the furnace corrosion maintenance shutdown method, according to the length of time to be shutdown. Generally, the shutdown can not exceeding one month wet maintenance, more than one month should be taken care dry.
Dry maintenance should note the following questions: Do not direct contact with the desiccant industrial furnace metal surface, can be installed in a container such as iron plate; placed desiccant, to shutting the other hand hole and manhole covers, gas, water pipeline The valve must be truncated; quicklime change powder should be replaced.
The use of wet maintenance, pay attention to the furnace condensate water is best to use, followed by the original boiler water can again be softened; adding alkali, the boiler water with Weihuo heated to 80 100 ℃ pressure rose to 23 tables after pressure protection 23 hours to reach the furnace circulating water alkalinity balance, the pressure is reduced, then the boiler water to fill, causing 1.5 4 gauge and maintained throughout the warranty period this pressure, alkalinity should be regularly testing, lowered, should be ready to add.