A container conveyor system includes a first endless conveyor and a second endless conveyor. The first endless conveyor is provided with a plurality of neck grippers that holds the neck of a capped container and conveys the container held by the neck gripper by moving the neck gripper. The second endless conveyor is provided with a plurality of vertical grippers that comprises an upper grip member, which is liftable and abuts against the top of the cap of the container, and a support plate that supports the base of the container. The second endless conveyor conveys the container held by the upper grip member and the support plate by moving the vertical gripper. The container conveyor system conveys the container by transferring the container between the neck gripper and the vertical gripper.

A container conveyor system includes a first endless conveyor and a second endless conveyor. The first endless conveyor is provided with a plurality of neck grippers that holds the neck of a capped container and conveys the container held by the neck gripper by moving the neck gripper. The second endless conveyor is provided with a plurality of vertical grippers that comprises an upper grip member, which is liftable and abuts against the top of the cap of the container, and a support plate that supports the base of the container. The second endless conveyor conveys the container held by the upper grip member and the support plate by moving the vertical gripper. The container conveyor system conveys the container by transferring the container between the neck gripper and the vertical gripper.

A material transfer vehicle includes a loading conveyor and a loading component (such as a truck-receiving hopper component or a windrow pick-up component) that is adapted to be removably attached to the lower end of the loading conveyor. The loading conveyor has a right guide plate on the right side of the lower end and a left guide plate on the left side of the lower end. The loading component has a right guide bracket that is adapted to align with and engage the right guide plate of the loading conveyor, and a left guide bracket that is adapted to align with and engage the left guide plate of the loading conveyor.

A proppant conveyor system has: a tower; a bucket elevator; a telescopic conveyor boom mounted to the tower above a ground surface; the telescopic conveyor boom being connected to convey proppant from an outlet of the bucket elevator to a discharge point defined by the telescopic conveyor boom; and the telescopic conveyor boom being mounted to swing in lateral directions relative to an axis of the tower to reposition the discharge point. A method includes: conveying proppant up a bucket elevator, along a telescopic conveyor boom mounted on a tower above a ground surface, and into an inlet of a first storage bin at a well site; repositioning the telescoping conveyor boom over an inlet of a second storage bin at the well site by swinging the telescopic conveyor boom in a lateral direction relative to an axis of the tower; and conveying proppant up the bucket elevator, along the telescopic conveyor boom, and into an inlet of the second storage bin.

A proppant conveyor system has: a tower; a bucket elevator; a telescopic conveyor boom mounted to the tower above a ground surface; the telescopic conveyor boom being connected to convey proppant from an outlet of the bucket elevator to a discharge point defined by the telescopic conveyor boom; and the telescopic conveyor boom being mounted to swing in lateral directions relative to an axis of the tower to reposition the discharge point. A method includes: conveying proppant up a bucket elevator, along a telescopic conveyor boom mounted on a tower above a ground surface, and into an inlet of a first storage bin at a well site; repositioning the telescoping conveyor boom over an inlet of a second storage bin at the well site by swinging the telescopic conveyor boom in a lateral direction relative to an axis of the tower; and conveying proppant up the bucket elevator, along the telescopic conveyor boom, and into an inlet of the second storage bin.

A material transfer vehicle includes a loading conveyor and a loading component (such as a truck-receiving hopper component or a windrow pick-up component) that is adapted to be removably attached to the lower end of the loading conveyor. The loading conveyor has a right guide plate on the right side of the lower end and a left guide plate on the left side of the lower end. The loading component has a right guide bracket that is adapted to align with and engage the right guide plate of the loading conveyor, and a left guide bracket that is adapted to align with and engage the left guide plate of the loading conveyor.