An example flow regulation system for a biochar kiln includes an air inlet port of the biochar kiln. The example flow regulation system also includes a port cover coupled to the air inlet ports. The example flow regulation system also includes an external flow regulation assembly coupled with the port cover. The example flow regulation system also includes a controller operating the external flow regulation assembly based on monitoring conditions of the biochar kiln to open and close the air inlet port.

An example flow regulation system for a biochar kiln includes an air inlet port of the biochar kiln. The example flow regulation system also includes a port cover coupled to the air inlet ports. The example flow regulation system also includes an external flow regulation assembly coupled with the port cover. The example flow regulation system also includes a controller operating the external flow regulation assembly based on monitoring conditions of the biochar kiln to open and close the air inlet port.

An example managed biochar kiln includes drum walls, a drum floor, and a lid formed to be fitted to a top edge of the drum walls to close a top end of the drum walls and form a combustion chamber between the lid, the drum walls, and the drum floor. The example managed biochar kiln also includes a chimney stack attachable to the lid. The example managed biochar kiln also includes a valve on the lid operable by an electronic controller to vary airflow through the chimney and out of the lid.

An example managed biochar kiln includes drum walls, a drum floor, and a lid formed to be fitted to a top edge of the drum walls to close a top end of the drum walls and form a combustion chamber between the lid, the drum walls, and the drum floor. The example managed biochar kiln also includes a chimney stack attachable to the lid. The example managed biochar kiln also includes a valve on the lid operable by an electronic controller to vary airflow through the chimney and out of the lid.

An example exhaust system for a biochar kiln includes a chimney of the biochar kiln. The example exhaust system for a biochar kiln also includes a first forced air inlet on the chimney to draw smoke through the chimney during a preheating stage to prime the chimney. The example exhaust system for a biochar kiln also includes a second forced air inlet operatively coupled with the chimney. The second forced air inlet activated to increase airflow when air naturally occurring in a smoke stream in the chimney is insufficient, the second forced air inlet deactivated when there is sufficient air.

An example exhaust system for a biochar kiln includes a chimney of the biochar kiln. The example exhaust system for a biochar kiln also includes a first forced air inlet on the chimney to draw smoke through the chimney during a preheating stage to prime the chimney. The example exhaust system for a biochar kiln also includes a second forced air inlet operatively coupled with the chimney. The second forced air inlet activated to increase airflow when air naturally occurring in a smoke stream in the chimney is insufficient, the second forced air inlet deactivated when there is sufficient air.

To enable a carbonized material production kiln to be maintained in a simple manner when an exposed surface on a side wall of the kiln is cracked, to prevent the kiln from easily cracking by heat to thereby prolong the life of the kiln itself, and to increase heat retention efficiency to thereby increase carbonization efficiency even during periods of cold temperatures such as the winter season. The carbonized material production kiln is formed by stacking cubic concrete blocks each having no reinforcing iron so that recombination of up to six faces of each cubic concrete block becomes possible, wherein a heat storage/retention member such as stones is filled in an exhaust space formed between a kiln floor iron plate and a kiln bottom so as to store heat, thereby preventing a decrease in carbonization efficiency even at cold temperatures.

To enable a carbonized material production kiln to be maintained in a simple manner when an exposed surface on a side wall of the kiln is cracked, to prevent the kiln from easily cracking by heat to thereby prolong the life of the kiln itself, and to increase heat retention efficiency to thereby increase carbonization efficiency even during periods of cold temperatures such as the winter season. The carbonized material production kiln is formed by stacking cubic concrete blocks each having no reinforcing iron so that recombination of up to six faces of each cubic concrete block becomes possible, wherein a heat storage/retention member such as stones is filled in an exhaust space formed between a kiln floor iron plate and a kiln bottom so as to store heat, thereby preventing a decrease in carbonization efficiency even at cold temperatures.

An apparatus and process for thermally de-manufacturing tires and other materials. The apparatus is a retort chamber with various zones in which tires are combusted to provide energy for the thermal depolymerization reaction, depolymerization takes place, and products leave the retort chamber. In one embodiment, the process reacts water with iron present in steel-belted tires to produce hydrogen, which helps to break sulfur-sulfur bonds in vulcanized materials. The water also helps control the temperature of the reaction, which allows for control over the types and relative amounts of the various depolymerization products.

An apparatus and process for thermally de-manufacturing tires and other materials. The apparatus is a retort chamber with various zones in which tires are combusted to provide energy for the thermal depolymerization reaction, depolymerization takes place, and products leave the retort chamber. In one embodiment, the process reacts water with iron present in steel-belted tires to produce hydrogen, which helps to break sulfur-sulfur bonds in vulcanized materials. The water also helps control the temperature of the reaction, which allows for control over the types and relative amounts of the various depolymerization products.