Gas distributor for a rotary kiln

摘要

A rotating air distributor for rotary reactors such as rotary kilns for the gasification of biomass and other carbonaceous materials for efficient mixing and maximum conversion of solid biomass and other carbonaceous materials into synthesis fuel gas is disclosed. The invention includes a gas distribution port comprises of one main supply from which several discharge nozzles emerge at different angles and at different locations along the length of the reactor to provide distribution of gas throughout the intended length of the reactor. The discharge of gas from the gas distribution port is adjusted by the variable position of a plug inside the port that can be adjusted during the operation of the kiln to achieve optimum gas-solid interaction along the length of the reactor. The rotating action of the gas distribution port also facilitates and eases the passage of reacted biomass solid and other carbonaceous material residue through the reactor.

主权项

1. A rotating distributor for use in a kiln, comprising:
a gas port extending through the length of the kiln, supported at ends of the kiln, and having an inlet for reactive gases, a plurality of nozzles distributed circumferentially and laterally along the main gas port, and a gas plug movably mounted in the gas port to restrict air into the kiln, wherein the gas plug is movable within the gas port from outside the kiln to determine the length of the kiln into which reactant gases are introduced, sprockets connected to a variable speed drive, wherein the sprockets are connected to the gas port, and flexible sealed insertions positioned along the gas port to align with the ends of the kiln, wherein the kiln has a vessel, and the gas port extends through the vessel and rotates independently from the vessel.