Learn how we used our materials knowledge to incorporate a dense phase pressure conveying system in a foundry application.
Gamma is owned by Victaulic. They manufacture the cast components for most of Victaulic’s product line, in addition to other customers. (Production ranges from single to multiple piece runs.)
They had experienced poor results and numerous maintenance problems with pneumatic conveying and did not believe it to be reliable.
The customer has multiple sand hoppers that need to be kept full of resin coated sand. The sand from these hoppers discharge to the customer’s core making machines.
Prior to the Nol-Tec conveying system being installed, the sand hoppers were filled using a fork lift truck to maneuver the bag into position then the operator opened the bag to fill the hopper. The core making room is small which made this a difficult, dangerous and messy operation.
The sand is resin coated and, if not handled properly, the resin coating can be removed resulting in poor cores.
Material is still received in bags and an overhead hoist is used to lift the bags into place. A support platform with access ladder allows the operator to obtain safe access to the bag and discharge the contents.
A transporter is located in a pit directly below the hopper. This gives the maximum capacity for the surge hopper, which contains approximately one day’s supply of material.
To prevent damage to the material during conveying, Nol-Tec designed this system to operate using our Non-Purge conveying concept.
The result is a reliable and safe method for conveying and loading the material use hoppers with good usable product in a minimum of space.
A new customer with a changed perception of pneumatic conveying.