US2004107858A1PendingUtilityA1

Device, System and Method for On-Line Explosive Deslagging

Assignee: NORTH AMERICAN IND SERVICES INPriority: Jan 17, 1997Filed: Aug 6, 2003Published: Jun 10, 2004
Est. expiryJan 17, 2017(expired)· nominal 20-yr term from priority
F22B 37/56B08B 9/08F27D 1/1694F23J 3/02F22B 37/486F27D 9/00F28G 7/00B08B 7/0007F28G 7/005F27D 1/12F23J 3/023F27D 25/006
40
PatentIndex Score
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Cited by
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References
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Claims

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.

Claims

exact text as granted — not AI-modified
1 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    a tubular device freely positioned into the hot heat-exchange device, enabling said at least one explosive material to be introduced into the hot heat-exchange device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device;    a coolant cooling said at least one explosive material, enabling said at least one explosive material to be introduced into the hot heat exchange device while remaining cool, non-destructively such that when said at least one explosive material is detonated, substantially all explosive impact is provided from said at least one explosive material; and    a detonator detonating said at least one explosive material at will.    
     
     
         2 . The system of  claim 1 , said at least one explosive material introduced for cleaning once said coolant commences to cool said at least one explosive material.  
     
     
         3 . The system of  claim 1 , said coolant cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.  
     
     
         4 . The system of  claim 1 , said coolant cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.  
     
     
         5 . The system of  claim 1 , said coolant cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         6 . The system of  claim 1 , said coolant enveloping said at least one explosive material.  
     
     
         7 . The system of  claim 1 , further comprising: 
 a coolant-delivery apparatus delivering said coolant proximate said at least one explosive material.    
     
     
         8 . The system of  claim 7 , said coolant-delivery apparatus omitting any return flow of said coolant.  
     
     
         9 . The system of  claim 7 , said coolant-delivery apparatus comprising at least one coolant delivery aperture delivering said coolant proximate said at least one explosive material.  
     
     
         10 . The system of  claim 7 , further comprising: 
 a distance maintained between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         11 . The system of  claim 9 , wherein: 
 said at least one coolant delivery aperture is spaced from said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         12 . The system of  claim 7:   said coolant-delivery apparatus comprising said tubular device; and    said tubular device comprising at least one passageway for flowing said coolant through said tubular device.    
     
     
         13 . The system of  claim 1 , further comprising: 
 an explosive material housing containing said at least one explosive material; wherein    said coolant cools said explosive material housing.    
     
     
         14 . The system of  claim 13 , said explosive material housing introduced for cleaning once said coolant commences to cool said explosive material housing.  
     
     
         15 . The system of  claim 13 , said coolant cooling said explosive material housing after said at least one explosive material is introduced for cleaning.  
     
     
         16 . The system of  claim 13 , said coolant cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.  
     
     
         17 . The system of  claim 13 , said coolant cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         18 . The system of  claim 13 , said coolant enveloping said explosive material housing.  
     
     
         19 . The system of  claim 13 , further comprising: 
 a protective envelope surrounding said explosive material housing with said coolant to cool said explosive material housing.    
     
     
         20 . The system of  claim 19 , wherein said protective envelope is semipermeable.  
     
     
         21 . The system of  claim 13 , further comprising: 
 a coolant-delivery apparatus delivering said coolant proximate said explosive material housing.    
     
     
         22 . The system of  claim 21 , omitting any return flow of said coolant.  
     
     
         23 . The system of  claim 21 , said coolant-delivery apparatus comprising at least one coolant delivery aperture delivering said coolant proximate said at least one explosive material.  
     
     
         24 . The system of  claim 21 , further comprising: 
 a distance maintained between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         25 . The system of  claim 23 , wherein: 
 said at least one coolant delivery aperture is spaced from said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         26 . The system of  claim 21:   said coolant-delivery apparatus comprising said tubular device; and    said tubular device comprising at least one passageway for flowing said coolant through said tubular device.    
     
     
         27 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    a tubular device freely positioned into the hot heat-exchange device, enabling said at least one explosive material to be introduced into the hot heat-exchange device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device;    a coolant cooling said at least one explosive material, enabling said at least one explosive material to be introduced into the hot heat exchange device while remaining cool; and    a detonator detonating said at least one explosive material at will.    
     
     
         28 . The system of  claim 27 , said at least one explosive material introduced for cleaning once said coolant commences to cool said at least one explosive material.  
     
     
         29 . The system of  claim 27 , said coolant cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.  
     
     
         30 . The system of  claim 27 , said coolant cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.  
     
     
         31 . The system of  claim 27 , said coolant cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         32 . The system of  claim 27 , said coolant enveloping said at least one explosive material.  
     
     
         33 . The system of  claim 27 , further comprising: 
 a coolant-delivery apparatus delivering said coolant proximate said at least one explosive material.    
     
     
         34 . The system of  claim 33 , said coolant-delivery apparatus omitting any return flow of said coolant.  
     
     
         35 . The system of  claim 33 , said coolant-delivery apparatus comprising at least one coolant delivery aperture delivering said coolant proximate said at least one explosive material.  
     
     
         36 . The system of  claim 33 , further comprising: 
 a distance maintained between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         37 . The system of  claim 35 , wherein: 
 said at least one coolant delivery aperture is spaced from said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         38 . The system of  claim 33:   said coolant-delivery apparatus comprising said tubular device; and    said tubular device comprising at least one passageway for flowing said coolant through said tubular device.    
     
     
         39 . The system of  claim 27 , further comprising: 
 an explosive material housing containing said at least one explosive material; wherein    said coolant cools said explosive material housing.    
     
     
         40 . The system of  claim 39 , said explosive material housing introduced for cleaning once said coolant commences to cool said explosive material housing.  
     
     
         41 . The system of  claim 39 , said coolant cooling said explosive material housing after said at least one explosive material is introduced for cleaning.  
     
     
         42 . The system of  claim 39 , said coolant cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.  
     
     
         43 . The system of  claim 39 , said coolant cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         44 . The system of  claim 39 , said coolant enveloping said explosive material housing.  
     
     
         45 . The system of  claim 39 , further comprising: 
 a protective envelope surrounding said explosive material housing with said coolant to cool said explosive material housing.    
     
     
         46 . The system of  claim 45 , wherein said protective envelope is semipermeable.  
     
     
         47 . The system of  claim 39 , further comprising: 
 a coolant-delivery apparatus delivering said coolant proximate said explosive material housing.    
     
     
         48 . The system of  claim 47 , omitting any return flow of said coolant.  
     
     
         49 . The system of  claim 47 , said coolant-delivery apparatus comprising at least one coolant delivery aperture delivering said coolant proximate said at least one explosive material.  
     
     
         50 . The system of  claim 47 , further comprising: 
 a distance maintained between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         51 . The system of  claim 49 , wherein: 
 said at least one coolant delivery aperture is spaced from said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         52 . The system of  claim 47:   said coolant-delivery apparatus comprising said tubular device; and    said tubular device comprising at least one passageway for flowing said coolant through said tubular device.    
     
     
         53 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    a tubular device freely positioned into the hot heat-exchange device, enabling said at least one explosive material to be introduced into the hot heat-exchange device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device;    a coolant cooling said tubular device, enabling said tubular device to remain cool while introducing said at least one explosive material into the hot heat-exchange device; and    a detonator detonating said at least one explosive material at will.    
     
     
         54 . The system of  claim 53 , said at least one explosive material introduced for cleaning once said coolant commences to cool said tubular device.  
     
     
         55 . The system of  claim 53 , said coolant cooling said tubular device after said at least one explosive material is introduced for cleaning.  
     
     
         56 . The system of  claim 53 , said coolant cooling said tubular device while said at least one explosive material is introduced into the hot heat-exchange device.  
     
     
         57 . The system of  claim 53 , said coolant cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         58 . The system of  claim 53:   said tubular device comprising at least one passageway for flowing said coolant, thereby cooling said tubular device.    
     
     
         59 . The system of  claim 53 , omitting any return flow of said coolant.  
     
     
         60 . The system of  claim 53 , said tubular device comprising at least one coolant delivery aperture delivering at least some coolant proximate said at least one explosive material.  
     
     
         61 . The system of  claim 53 , further comprising: 
 a distance maintained between said tubular device and said at least one explosive material.    
     
     
         62 . The system of  claim 60 , wherein: 
 said at least one coolant delivery aperture is spaced from said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         63 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    a tubular device freely positioned into the hot heat-exchange device, enabling said at least one explosive material to be introduced into the hot heat-exchange device via said tubular device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device;    a coolant for cooling said at least one explosive material while said least one explosive material is introduced into said hot heat-exchange device;    a coolant-delivery apparatus comprising at least one tubular passageway for flowing said coolant therethrough and delivering said coolant proximate said at least one explosive material; and    a detonator detonating said at least one explosive material at will.    
     
     
         64 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    an explosive material housing containing said at least one explosive material;    a coolant for cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device;    a protective envelope surrounding said explosive material housing with said coolant;    a tubular device freely positioned into the hot heat-exchange device, enabling said at least one explosive material to be introduced into the hot heat-exchange device via said tubular device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device; and    a detonator detonating said at least one explosive material at will.    
     
     
         65 . A system for cleaning a hot heat-exchange device, comprising: 
 at least one explosive material;    a tubular device freely positioned into the hot heat-exchange device,    enabling said at least one explosive material to be introduced into the hot heat-exchange device via said tubular device and enabling said at least one explosive material to be positioned to a desired position within the hot heat-exchange device;    a coolant-delivery apparatus comprising at least one passageway for flowing at least some coolant therethrough and delivering said at least some coolant proximate said at least one explosive material; and    a detonator detonating said at least one explosive material at will; wherein    at least some coolant envelops said at least one explosive material to cool said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         66 . A method for cleaning a hot heat-exchange device, comprising the steps of: 
 introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, using a tubular device freely positioned into the hot heat-exchange device;    cooling, using a coolant, said at least one explosive material when introducing said at least one explosive material into the hot heat exchange device, non-destructively such that when said at least one explosive material is detonated, substantially all explosive impact is provided from said at least one explosive material, using a coolant cooling said at least one explosive material; and    detonating said at least one explosive material at will.    
     
     
         67 . The method of  claim 66 , further comprising the step of: 
 introducing said at least one explosive material for cleaning once said coolant commences to cool said at least one explosive material.    
     
     
         68 . The method of  claim 66 , further comprising the step of: 
 cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.    
     
     
         69 . The method of  claim 66 , further comprising the step of: 
 cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         70 . The method of  claim 66 , further comprising the step of cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         71 . The method of  claim 66 , further comprising the step of: 
 enveloping said at least one explosive material with said coolant.    
     
     
         72 . The method of  claim 66 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material, using a coolant-delivery apparatus.    
     
     
         73 . The method of  claim 72 , further comprising the step of: 
 omitting any return flow of said coolant.    
     
     
         74 . The method of  claim 72 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material through at least one coolant delivery aperture of said coolant-delivery apparatus.    
     
     
         75 . The method of  claim 72 , further comprising the step of: 
 maintaining a distance between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         76 . The method of  claim 74 , further comprising the step of: 
 providing a space between said at least one coolant delivery aperture and said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         77 . The method of  claim 72 , said coolant-delivery apparatus comprising said tubular device, further comprising the step of: 
 flowing said coolant through at least one passageway of said tubular device.    
     
     
         78 . The method of  claim 66 , further comprising the steps of: 
 providing an explosive material housing to contain said at least one explosive material; and    cooling said explosive material housing using said coolant.    
     
     
         79 . The method of  claim 78 , further comprising the step of: 
 introducing said at least one explosive material for cleaning once said coolant commences to cool said at least one explosive material.    
     
     
         80 . The method of  claim 78 , further comprising the step of: 
 cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.    
     
     
         81 . The method of  claim 78 , further comprising the step of: 
 cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         82 . The method of  claim 78 , further comprising the step of cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         83 . The method of  claim 78 , further comprising the step of: 
 enveloping said at least one explosive material with said coolant.    
     
     
         84 . The method of  claim 78 , further comprising the step of: 
 cooling said explosive material housing using a protective envelope surrounding said explosive material housing with said coolant.    
     
     
         85 . The method of  claim 84 , wherein said protective envelope is semipermeable.  
     
     
         86 . The method of  claim 78 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material, using a coolant-delivery apparatus.    
     
     
         87 . The method of  claim 86 , further comprising the step of: 
 omitting any return flow of said coolant.    
     
     
         88 . The method of  claim 86 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material through at least one coolant delivery aperture of said coolant-delivery apparatus.    
     
     
         89 . The method of  claim 86 , further comprising the step of: 
 maintaining a distance between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         90 . The method of  claim 88 , further comprising the step of: 
 providing a space between said at least one coolant delivery aperture and said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         91 . The method of  claim 86 , said coolant-delivery apparatus comprising said tubular device, further comprising the step of: 
 flowing said coolant through at least one passageway of said tubular device.    
     
     
         92 . A method for cleaning a hot heat-exchange device, comprising the steps of: 
 introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, using a tubular device freely positioned into the hot heat-exchange device;    cooling, using a coolant, said at least one explosive material when introducing said at least one explosive material into the hot heat exchange device; and    detonating said at least one explosive material at will.    
     
     
         93 . The method of  claim 92 , further comprising the step of: 
 introducing said at least one explosive material for cleaning once said coolant commences to cool said at least one explosive material.    
     
     
         94 . The method of  claim 92 , further comprising the step of: 
 cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.    
     
     
         95 . The method of  claim 92 , further comprising the step of: 
 cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         96 . The method of  claim 92 , further comprising the step of cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         97 . The method of  claim 92 , further comprising the step of: 
 enveloping said at least one explosive material with said coolant.    
     
     
         98 . The method of  claim 92 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material, using a coolant-delivery apparatus.    
     
     
         99 . The method of  claim 98 , further comprising the step of: 
 omitting any return flow of said coolant.    
     
     
         100 . The method of  claim 98 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material through at least one coolant delivery aperture of said coolant-delivery apparatus.    
     
     
         101 . The method of  claim 98 , further comprising the step of: 
 maintaining a distance between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         102 . The method of  claim 100 , further comprising the step of: 
 providing a space between said at least one coolant delivery aperture and said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         103 . The method of  claim 98 , said coolant-delivery apparatus comprising said tubular device, further comprising the step of: 
 flowing said coolant through at least one passageway of said tubular device.    
     
     
         104 . The method of  claim 92 , further comprising the steps of: 
 providing an explosive material housing to contain said at least one explosive material; and    cooling said explosive material housing using said coolant.    
     
     
         105 . The method of  claim 104 , further comprising the step of: 
 introducing said at least one explosive material for cleaning once said coolant commences to cool said at least one explosive material.    
     
     
         106 . The method of  claim 104 , further comprising the step of: 
 cooling said at least one explosive material after said at least one explosive material is introduced for cleaning.    
     
     
         107 . The method of  claim 104 , further comprising the step of: 
 cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         108 . The method of  claim 104 , further comprising the step of cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         109 . The method of  claim 104 , further comprising the step of: 
 enveloping said at least one explosive material with said coolant.    
     
     
         110 . The method of  claim 104 , further comprising the step of: 
 cooling said explosive material housing using a protective envelope surrounding said explosive material housing with said coolant.    
     
     
         111 . The method of  claim 110 , wherein said protective envelope is semipermeable.  
     
     
         112 . The method of  claim 104 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material, using a coolant-delivery apparatus.    
     
     
         113 . The method of  claim 112 , further comprising the step of: 
 omitting any return flow of said coolant.    
     
     
         114 . The method of  claim 112 , further comprising the step of: 
 delivering said coolant proximate said at least one explosive material through at least one coolant delivery aperture of said coolant-delivery apparatus.    
     
     
         115 . The method of  claim 112 , further comprising the step of: 
 maintaining a distance between said coolant-delivery apparatus and said at least one explosive material.    
     
     
         116 . The method of  claim 114 , further comprising the step of: 
 providing a space between said at least one coolant delivery aperture and said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         117 . The method of  claim 112 , said coolant-delivery apparatus comprising said tubular device, further comprising the step of: 
 flowing said coolant through at least one passageway of said tubular device.    
     
     
         118 . A method for cleaning a hot heat-exchange device, comprising: 
 introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, using a tubular device freely positioned into the hot heat-exchange device;    cooling, using a coolant, said tubular device when introducing said at least one explosive material into the hot heat-exchange device; and    detonating said at least one explosive material at will.    
     
     
         119 . The method of  claim 118 , further comprising the step of: 
 introducing said at least one explosive material for cleaning once said coolant commences to cool said tubular device.    
     
     
         120 . The method of  claim 118 , further comprising the step of: 
 cooling said tubular device after said at least one explosive material is introduced for cleaning.    
     
     
         121 . The method of  claim 118 , further comprising the step of: 
 cooling said tubular device while said at least one explosive material is introduced into the hot heat-exchange device.    
     
     
         122 . The method of  claim 118 , further comprising the step of cooling said at least one explosive material when said at least one explosive material at said desired position.  
     
     
         123 . The method of  claim 118 , further comprising the step of: 
 cooling said tubular device by flowing said coolant through at least one passageway of said tubular device.    
     
     
         124 . The method of  claim 118 , further comprising the step of: 
 omitting any return flow of said coolant.    
     
     
         125 . The method of  claim 118 , further comprising the step of: 
 delivering at least some coolant proximate said at least one explosive material through at least one coolant delivery aperture of said tubular device.    
     
     
         126 . The method of  claim 118 , further comprising the step of: 
 maintaining a distance between said tubular device and said at least one explosive material.    
     
     
         127 . The method of  claim 125 , further comprising the step of: 
 providing a space between said at least one coolant delivery aperture and said at least one explosive material when said at least one explosive material is at said desired position within said hot heat-exchange device.    
     
     
         128 . A method for cleaning a hot heat-exchange device, comprising the steps of: 
 introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, via a tubular device freely positioned into the hot heat-exchange device;    cooling, using a coolant, said at least one explosive material when introducing said at least one explosive material into the hot heat exchange device;    delivering said coolant proximate said at least one explosive material by flowing said coolant through at least one tubular passageway of a coolant-delivery apparatus; and    detonating said at least one explosive material at will.    
     
     
         129 . A method for cleaning a hot heat-exchange device, comprising the steps of: 
 providing an explosive material housing to contain said at least one explosive material;    cooling, using a coolant, said at least one explosive material when introducing said at least one explosive material into the hot heat exchange device;    surrounding said explosive material housing with said coolant, using a protective envelope;    introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, via a tubular device freely positioned into the hot heat-exchange device;    detonating said at least one explosive material at will.    
     
     
         130 . A method for cleaning a hot heat-exchange device, comprising the steps of: 
 introducing at least one explosive material into the hot heat-exchange device and positioning said at least one explosive material to a desired position within the hot heat-exchange device, via a tubular device freely positioned into the hot heat-exchange device;    delivering said at least some coolant proximate said at least one explosive material, by flowing at least some coolant through at least one passageway of a coolant-delivery apparatus;    cooling said at least one explosive material while said at least one explosive material is introduced into the hot heat-exchange device, by enveloping said at least one explosive material with at least some coolant; and    detonating said at least one explosive material at will.

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