What are the causes of explosions inside the zinc roasting waste heat boiler? ?
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After the major repair, the calcination furnace enters the heating phase, with the furnace temperature rising to 650 degrees. The boiler maintenance work involved replacing two sets of slag tubes. The newly designed dust removal system experienced multiple instances of failed explosions during installation and testing; no tests were conducted for dust removal using explosions 8 hours before the actual explosions took place, and diesel was used to raise the temperature inside the roasting furnace. An explosion occurred inside the boiler; the slag retaining plate at the rear of the boiler shifted, the connection pipes leaked, the ceiling at the smoke inlet of the boiler leaked, and the blind plate at the smoke outlet at the rear of the boiler had its welds cracked and curled due to the impact of air currents. What could be the causes of an explosion? ? ?
The solenoid valve of the blasting dust removal system may be leaking.
It seems that the cause has not been determined; the final conclusion is that the diesel injector went out due to positive pressure, with the furnace filled with diesel smoke, which then exploded under that positive pressure