Bridge reducing mixed-flow grain dryer with cross-flow vacuum cool heat recovery system

A grain dryer system, comprising:

• a loading system;
• the loading system operatively connected to a pair of grain columns;
• the loading system configured to load wet grain into the pair of grain columns;
• the pair of grain columns having a heating section;
• the pair of grain columns having a cooling section;
• wherein a first one of the heating section and cooling section is a mixed-flow drying section
• wherein a second one of the heating section and cooling section is a cross-flow drying section
• an unloading system;
• the unloading system operatively connected to the pair of grain columns;
• the unloading system configured to receive dry grain from the drying section of the pair of grain columns;
• the unloading system configured to unload the dry grain from the grain dryer system.

A grain dryer system, comprising:

• a loading system;
• the loading system operatively connected to one or more grain columns;
• the loading system configured to load wet grain into the one or more grain columns;
• the one or more grain columns having a drying section;
• wherein the drying section comprises a mixed-flow drying section;
• wherein the drying section comprises a cross-flow drying section;
• an unloading system;
• the unloading system operatively connected to the one or more grain columns;
• the unloading system configured to receive dry grain from the drying section of the one or more grain columns;
• the unloading system configured to unload the dry grain from the grain dryer system.

A grain dryer system comprising:

• a loading system;
• a pair of grain columns;
• the loading system configured to load wet grain into one or more grain columns;
• the one or more grain columns having a mixed-flow heating section;
• the one or more grain columns having a cooling section;
• wherein the one or more grain columns have respective lower sections configured to direct dry grain to a single unload point for unloading;
• wherein the lower sections of the one or more grain columns each include a respective metering roll configured to control a speed at which grain is metered from the lower section to an unloading system;
• the unloading system configured to receive and unload the dry grain from the grain dryer system via the single unload point.