초록 ▼

An improved pug mill mixer including at least one homogenizer shaft extending transverse to the direction of the pug mill shafts for providing a zone of high shear mixing. The pug mill mixer of the present invention is particularly well-suited to mix dry, fine powders with liquids and pasty, sticky

An improved pug mill mixer including at least one homogenizer shaft extending transverse to the direction of the pug mill shafts for providing a zone of high shear mixing. The pug mill mixer of the present invention is particularly well-suited to mix dry, fine powders with liquids and pasty, sticky sludges, such as flue gas desulfurization (FGD) sludge. The mixer includes a container, within which is disposed at least one pug mill shaft having a series of pug mill paddles coupled to and radially protruding from the pug mill shafts for mixing the mixture and transporting the mixture along the pug mill shafts. The homogenizer shafts extend in a direction transverse to the pug mill shafts. Homogenizer mixing elements are coupled to and radially protrude from the homogenizer shafts. The homogenizer shafts rotate at a relatively high speed for producing a zone of high shear mixing. A liquid injection nozzle injects liquid into the container near the feed port of the container.

대표청구항 ▼

A mixer comprising: a container for containing a mixture and having a feed port through which components of said mixture are fed to said container; at least one pug mill shaft contained within said container and extending in a first direction; a plurality of pug mill paddles coupled to and radially

A mixer comprising: a container for containing a mixture and having a feed port through which components of said mixture are fed to said container; at least one pug mill shaft contained within said container and extending in a first direction; a plurality of pug mill paddles coupled to and radially protruding from said at least one pug mill shaft for mixing said mixture and transporting said mixture in said first direction through a region, defined by the outer periphery of said plurality of pug mill paddles, as said mixture is mixed; at least one homogenizer shaft contained within said container below said at least one pug mill shaft, disposed within said region, and extending in a second direction transverse to said first direction; and a plurality of homogenizer mixing elements coupled to and radially protruding from said at least one homogenizer shaft.