Cooling and classifying apparatus for pelletized product processing

摘要

A cooler for particulate product includes a substantially enclosed housing. A first cooling screen is disposed in the housing and is configured to receive the product. The first cooling screen is configured to move the product along a surface by gravity when the first cooling screen vibrated. A duct is coupled to the first cooling screen to move cooling fluid through the first cooling screen. A second cooling screen is disposed in the housing below the first screen and is configured to receive the product after discharge from the first screen. The second screen is configured to move the particulate product along a surface when vibrated. A second duct is coupled to the second screen to move cooling fluid through the screen. A collector receives the particulate product after moving along a surface of the second screen. A vibrator is coupled to the housing and vibrates the housing.

主权项

1. An apparatus comprising:
a substantially enclosed housing; a first cooling screen disposed in the housing configured to receive the particulate product, the first cooling screen configured to move the particulate product along a surface by gravity when the first cooling screen is subjected to vibration wherein the first cooling screen has an exterior lateral edge; a first duct directly coupled to the first cooling screen extending to a first external duct opening such that a cooling fluid moves through the first duct and a majority of the cooling fluid passes through the first cooling screen wherein the first duct has a screen opening having a size and shape that substantially matches the exterior lateral edge of the first cooling screen; a second cooling screen disposed in the housing below the first cooling screen and configured to receive the particulate product after discharge from the first cooling screen, the second cooling screen configured to move the particulate product along a surface by gravity when the second cooling screen is subjected to vibration wherein the second cooling screen has a conical shape such that a slope extends downwardly from an exterior lateral edge of the second cooling screen to the center of the second cooling screen; a second duct directly coupled to the second cooling screen extending to a second external duct opening such that the cooling fluid moves through the second duct and a majority of the cooling fluid passes through the second cooling screen; a product collector configured to receive particulate product after moving along a surface of the second cooling screen; and a vibrator coupled to the housing and configured to impart selected vibratory motion to the housing.