A secondary silo on a second portable frame is independently portable relative to a primary silo and a vertical conveyor on a first portable frame. The vertical conveyor conveys flowable proppant material from an intake hopper below the primary silo into either one of the silos. The silos have gravity discharge chutes that are gravity fed directly into a proppant blender unit. An unloader on wheels is self-propelled and steerable relative to the silos. The unloader can be lowered relative to the wheels to sit on the ground to allow vehicles to drive over the unloader for discharge. Intake hoppers of the unloader can be raised up against the vehicle to form a closed duct discharging from the vehicles into the unloader. A discharge of the unloader forms a closed passage with the intake hopper of the vertical conveyor.

A self-loading pallet system is disclosed where a three-dimensional basic structure can be manipulated horizontally and vertically and carry with it a cargo, loaded either directly into the structure, or onto a separate pallet structure inserted into the basic structure. The system is useful for loading and unloading cargo between ground level and the cargo floor of vehicles. The vertical loading steps are accomplished by a sequence of extensions and retractions of legs slidably attached to the basic structure. The vertical leg movements are powered by actuators that extend and retract their pistons attached to telescoping legs of the basic structure. Each actuator has an interior motor and a dedicated controller operating the motor. An exterior master controller communicates with each actuator controller, whereby the sequence of vertical loading steps can be pre-programmed to effectively automate the loading and unloading sequences. Actuator motors are powered by an exterior rechargeable battery.

A wheeled shipping/transport cart includes a cart frame that supports a plurality of wheels. The cart frame supports a plurality of stackable trays. The trays include a tray frame with opposed end members, a plurality of longitudinal support members disposed between the opposed end members, and a plurality of upright members nesting with upright members of an adjacent tray. A support structure is disposed between the opposed end members to form an arc corresponding to a curved surface of an article to be supported by the support structure. A pin is received through each of the upright members of the plurality of stackable trays to retain the stackable trays in a stacked configuration.

A shipping container includes a body defining an interior. The shipping container further includes a dunnage assembly, the dunnage assembly including a tray and a hinge, the hinge subdividing the tray into a first tray portion and a second tray portion. The dunnage assembly is movable along a transverse axis between a first position wherein the second tray portion is at least partially disposed within the interior and a second position wherein the second tray portion is entirely exterior to the body. The second tray portion is rotatable relative to the first tray portion about the hinge when the dunnage assembly is moved between the first position and the second position.

Described is a system for conveying wet sand. The system includes containers with a slip coating for storing wet sand. Each container includes an outlet formed in a bottom portion to facilitate removal of the wet sand from the container to a hopper. Each hopper has end walls, side walls, and an interior wall extending at an angle from the top to the bottom of the hopper to reduce an area of the outlet. A flow gate over the outlet controls discharge of the wet sand from the hopper onto a conveyor belt of a conveyor system. The hopper also includes a vibration system coupled to its exterior surface for shaking the hopper to assist in releasing sand. A discharge assembly is located at the end of the conveyor system for directing wet sand from the conveyor belt.

A modular shipping container apparatus having a base with two support portions each of having two substantially open top rectangular shaped spaces each having a bottom side, a left side and a right side and at least one set of base holes; at least one wheel assembly between the two substantially open top rectangular shaped spaces, the at least one wheel assembly having a substantially open bottom rectangular piece with at least one set of wheel assembly holes and at least one wheel with a center opening, the wheel assembly is retained between the two substantially open top rectangular shaped spaces by at least one bar through the at least one set of base holes, the at least one set of wheel assembly holes and the wheels; at least two tracks attached to the bottom interior of a shipping container for slidably receiving the at least one wheel assemblies.

A bulk material storage container assembly for storing and unloading particulate material includes a storage vessel adapted to hold particulate material. A discharge port is in fluid communication with the storage vessel and with a discharge port outlet. The discharge port is also sized and shaped to facilitate bridging of particulate material. A shaft is mounted within the storage vessel adjacent to the discharge port and adapted for reciprocal movement with respect to the discharge port. A rake is mounted on said shaft and adapted to disaggregate particulate material that has bridged proximate the discharge port as the shaft is reciprocated with respect to the discharge port.

A system and method that provides for a crate consisting of main flooring section and additional side supports and horizontal beam bracing, that when assembled give the crate the rigidity to be stacked vertically, with multiple units on top of each other, with no other supporting structure. Safe lifting is ensured by fully enclosed fork pockets across the crate base. Safe stacking is ensured by using ISO shipping container casting, as part of the crate design along with top lug assembly to provide positive lateral restraint when stacked.

A storage module is provided for an organic material handling system. The storage module has a levelling component for levelling out the organic material stored therein, and a removal component for discharging the organic material. A modular system and method is described for improving the receiving, processing, storing, and transloading of bulk materials such as organic waste. A system includes at least a receiving module to receive material, a storage module, a discharge module, and a control system. Systems can be adapted with additional modules, such as processing modules and transfer modules, depending on the site and materials to be handled. A control system interfaces with the modular components and local operators, and provides remote reporting and monitoring.

A liner floor for use in a container liner is provided. The liner floor includes a floor portion arranged between a distal end and a proximal portion and the floor portion is configured for being arranged on a floor of the container. The floor portion includes a plurality of stacks of folded sections. The stacks are folded such that a top fold of one stack is connected to a bottom fold of a proximal neighbouring stack. A weight of the folded sections varies along the floor portion with each of the folded sections having at least the same weight as a proximal neighbouring folded section. Also provided are methods for unloading cargo from a container including a liner, and methods and apparatuses for loading cargo into a container.