A waste processing apparatus may include a pyrolyser and a feed assembly. The feed assembly may include a feed duct including a waste inlet configured to receive waste. The feed duct may further include a waste outlet configured to discharge the waste from the feed duct to the pyrolyser. The feed assembly may also include a feed screw disposed within the feed duct configured to convey the waste from the waste inlet to the waste outlet. The feed assembly may further include a rotary drive configured to cause the feed screw to convey the waste from the waste inlet to the waste outlet. The feed assembly may also include a rotational resistance sensor configured to monitor a parameter related to resistance to rotation. The feed assembly may further include a rotary drive controller configured to reduce, based on the parameter, a rotary output speed of the rotary drive.

A waste processing apparatus may include a pyrolyser and a feed assembly. The feed assembly may include a feed duct including a waste inlet configured to receive waste. The feed duct may further include a waste outlet configured to discharge the waste from the feed duct to the pyrolyser. The feed assembly may also include a feed screw disposed within the feed duct configured to convey the waste from the waste inlet to the waste outlet. The feed assembly may further include a rotary drive configured to cause the feed screw to convey the waste from the waste inlet to the waste outlet. The feed assembly may also include a rotational resistance sensor configured to monitor a parameter related to resistance to rotation. The feed assembly may further include a rotary drive controller configured to reduce, based on the parameter, a rotary output speed of the rotary drive.

The present technology is generally directed to coal charging systems used with coke ovens. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, charging plates extend outwardly from inward faces of opposing wings.

The present technology is generally directed to coal charging systems used with coke ovens. In some embodiments, a coal charging system includes a charging head having opposing wings that extend outwardly from the charging head, leaving an open pathway through which coal may be directed toward side edges of the coal bed. In other embodiments, an extrusion plate is positioned on a rearward face of the charging head and oriented to engage and compress coal as the coal is charged along a length of the coking oven. In other embodiments, charging plates extend outwardly from inward faces of opposing wings.

A pyrolysis injector includes a feeder unit with a first inlet for particulate polymeric material and a second inlet for oil, wherein said first inlet and said second inlet lead to a reservoir arranged for mixing said particulate polymeric material and oil into oil-wet particulate polymeric material, and with one or more feeding auger arranged in a feeder gutter portion of said reservoir, the feeder gutter portion leading to a narrowing pipe portion about an end portion of the one or more feeder auger arranged for compacting the oil-wet particulate polymeric material for form a compacted oil-wet particulate polymeric material, the narrowing pipe portion leading to a compacting pipe which is arranged for feeding the compacted oil-wet particulate polymeric material to a third inlet of a pyrolysis reactor, the pyrolysis reactor provided with at least one first outlet for pyrolysis fluids in gaseous form, one or more first heating elements arranged for heating the reservoir with the oil-wet particulate polymeric material (and oil) present therein, and for boiling off water and/or chemicals, one or more second heating elements arranged on the compacting pipe with the compacted oil-wet particulate polymeric material and arranged for pre-heating the compacted oil-wet particulate polymeric material before injection to the third inlet of the pyrolysis reactor, and wherein the second inlet for oil is arranged for receiving a part of an intermediary pyrolysis fluid of the pyrolysis fluids in a condensed liquid state back to the reservoir.

A pyrolysis injector includes a feeder unit with a first inlet for particulate polymeric material and a second inlet for oil, wherein said first inlet and said second inlet lead to a reservoir arranged for mixing said particulate polymeric material and oil into oil-wet particulate polymeric material, and with one or more feeding auger arranged in a feeder gutter portion of said reservoir, the feeder gutter portion leading to a narrowing pipe portion about an end portion of the one or more feeder auger arranged for compacting the oil-wet particulate polymeric material for form a compacted oil-wet particulate polymeric material, the narrowing pipe portion leading to a compacting pipe which is arranged for feeding the compacted oil-wet particulate polymeric material to a third inlet of a pyrolysis reactor, the pyrolysis reactor provided with at least one first outlet for pyrolysis fluids in gaseous form, one or more first heating elements arranged for heating the reservoir with the oil-wet particulate polymeric material (and oil) present therein, and for boiling off water and/or chemicals, one or more second heating elements arranged on the compacting pipe with the compacted oil-wet particulate polymeric material and arranged for pre-heating the compacted oil-wet particulate polymeric material before injection to the third inlet of the pyrolysis reactor, and wherein the second inlet for oil is arranged for receiving a part of an intermediary pyrolysis fluid of the pyrolysis fluids in a condensed liquid state back to the reservoir.