Asphalt/dust/rubber processing equipment

摘要

A closed, pressurized apparatus for introducing aggregate dust and rubber into a stream of liquid asphalt is provided. Aggregate dust and rubber are dispensed through a valve from a receiving chamber into a mixing housing. The aggregate dust and rubber enter the mixing housing at an intermediate location therein. The liquid asphalt is introduced into the mixing housing through a separate conduit at a location thereon above the point of entry of the aggregate dust and rubber. The liquid asphalt, the aggregate and the rubber combine within the mixing housing to form a slurry composition. A heating jacket substantially surrounds the mixing housing and a system for preventing liquid asphalt from backing up into the receiving chamber is also provided. The apparatus is particularly useful in an asphalt plant using a bag house.