Device, system and method for on-line explosive deslagging
AssigneeNorth American Industrial Services, Inc.
InventorsFrancis Zilka, Timothy Zilka, Kurt Prouty, Donald Howard
Life of this patent
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Abstract
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prevent them from detonating due to the heat of the on-line facility. Thus, controlled, appropriately-timed detonation can be initiated as desired, and boiler scale and slag is removed without the need to shut down or cool down the facility.
Claims32
A system for deslagging a hot heat-exchange device, comprising:
- an explosive;
- explosive positioning means for freely positioning said explosive for deslagging within said hot heat-exchange device;
- a non-destructive cooling apparatus for cooling said explosive with a coolant, after said explosive has been delivered to said position for deslagging, such that when said explosive is detonated, substantially all explosive impact is provided from said explosive and substantially none of said explosive impact is provided from said non-destructive cooling apparatus;
- coolant delivery means for delivering said coolant to cool said explosive after said explosive has been freely positioned for deslagging;
- and
- detonating means for detonating at will said explosive device;
- whereby:
- said non-destructive cooling apparatus does not damage said heat-exchange device when said explosive is detonated.
A system for deslagging a hot heat-exchange device, comprising:
- an explosive;
- explosive positioning means for freely positioning said explosive for deslagging within said hot heat-exchange device;
- coolant delivery means for delivering a coolant to cool said explosive while said explosive is freely positioned for deslagging;
- and
- detonating means for detonating at will said explosive device.
A method for deslagging a hot heat-exchange device, comprising:
- freely positioning an explosive for deslagging within said hot heat-exchange device, using explosive positioning means therefor;
- cooling said explosive with a coolant using a non-destructive cooling apparatus therefor, after said explosive has been delivered to said position for deslagging, such that when said explosive is detonated, substantially all explosive impact is provided from said explosive and substantially none of said explosive impact is provided from said non-destructive cooling apparatus;
- delivering said coolant to cool said explosive after said explosive has been freely positioned for deslagging, using coolant delivery means therefor;
- and
- detonating at will said explosive device;
- whereby:
- said non-destructive cooling apparatus does not damage said heat-exchange device when said explosive is detonated.
A method for deslagging a hot heat-exchange device, comprising:
- freely positioning an explosive for deslagging within said hot heat-exchange device using explosive positioning means therefor;
- delivering a coolant to cool said explosive while said explosive is freely positioned for deslagging using coolant delivery means therefor;
- and
- detonating at will said explosive device.
Dependencies are inferred from the claim text.