US2018072954A1PendingUtilityA1

Airflow control and heat recovery in a managed kiln

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Assignee: BIOCHAR NOW LLCPriority: Mar 11, 2012Filed: Nov 15, 2017Published: Mar 15, 2018
Est. expiryMar 11, 2032(~5.6 yrs left)· nominal 20-yr term from priority
Inventors:Donald P. AupperleMikel S. OlanderBenjamin M. BeierwaltesWilliam T. BeierwaltesJames G. Gaspard, Ii
F23G 7/07F23B 90/06C10B 1/02C10B 53/02F23B 90/08F23L 5/02F23L 3/00C10B 49/02F23L 11/02F23G 7/10F23N 2233/04F23L 17/005F23L 2700/001Y02E50/10C10B 3/02Y02E50/14
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Claims

Abstract

An example heat recovery apparatus includes a chimney configured to exhaust air and smoke from a biochar kiln combustion chamber. The example heat recovery apparatus also includes a heat exchanger configured to recover heat from the chimney and provide the heat to a secondary application.

Claims

exact text as granted — not AI-modified
1 . A heat recovery apparatus, comprising:
 a chimney configured to exhaust air and smoke from a biochar kiln combustion chamber; and   a heat exchanger configured to recover heat from the chimney and provide the heat to a secondary application.   
     
     
         2 . The heat recovery apparatus of  claim 1 , wherein the heat exchanger is configured to exchange heat from one volume of air to another volume of air. 
     
     
         3 . The heat recovery apparatus of  claim 1 , wherein the heat exchanger is configured to exchange heat from a volume of air to a volume of liquid. 
     
     
         4 . The heat recovery apparatus of  claim 1 , wherein the heat exchanger is configured to exchange heat from a volume of air to a volume of steam. 
     
     
         5 . A heat recovery apparatus, comprising:
 a chimney configured to exhaust air and smoke from a biochar kiln combustion chamber;   a heat exchanger configured to recover heat from the chimney and provide the heat to a secondary application, the heat exchanger further configured to exchange heat from one volume of air to at least one other medium   
     
     
         6 . The heat recovery apparatus of  claim 5 , wherein the at least one other medium is air. 
     
     
         7 . The heat recovery apparatus of  claim 5 , wherein the at least one other medium is liquid. 
     
     
         8 . The heat recovery apparatus of  claim 5 , wherein the at east one other medium is steam. 
     
     
         9 . A heat recovery apparatus, comprising:
 a chimney configured to exhaust air and smoke from a biochar kiln combustion chamber;   a heat exchanger configured to recover heat from the chimney and provide the heat to a secondary application, the heat exchanger further configured to exchange heat from one volume of air to at least one of air, liquid, and steam.

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