A bulk material shipping container unloader having an expandable supporter, a pallet receiver supported by the extendable supporter, and a material director supported by the pallet receiver.

When a cylinder portion of an innerliner is positioned inside a mouthpiece and when an upper mold and a lower mold are brought together, a projection portion is provided on an outer circumferential member of the lower mold that closes a gap between a section of an upper mold side positioning outer circumferential surface following on from an inner circumferential end of an outer abutting surface and a portion of the innerliner where an inner circumferential surface abuts. As a result, the portion of the innerliner that is thermally deformed is prevented from being displaced radially inward of the mouthpiece along a first annular surface.

When a cylinder portion of an innerliner is positioned inside a mouthpiece and when an upper mold and a lower mold are brought together, a projection portion is provided on an outer circumferential member of the lower mold that closes a gap between a section of an upper mold side positioning outer circumferential surface following on from an inner circumferential end of an outer abutting surface and a portion of the innerliner where an inner circumferential surface abuts. As a result, the portion of the innerliner that is thermally deformed is prevented from being displaced radially inward of the mouthpiece along a first annular surface.

A proppant discharge system has a container with an outlet positioned in a bottom thereof and a gate affixed adjacent the outlet so as to be movable between a first position covering the outlet to a second position opening the outlet, and a support structure having an actuator thereon. The container is removably positioned on the top surface of the support structure. The actuator is engageable with gate so as to move the gate from the first position to the second position. A conveyor underlies the container so as to receive proppant as discharged from the container through the outlet. The container can be a ten foot ISO container.

A proppant discharge system has a container with an outlet positioned in a bottom thereof and a gate affixed adjacent the outlet so as to be movable between a first position covering the outlet to a second position opening the outlet, and a support structure having an actuator thereon. The container is removably positioned on the top surface of the support structure. The actuator is engageable with gate so as to move the gate from the first position to the second position. A conveyor underlies the container so as to receive proppant as discharged from the container through the outlet. The container can be a ten foot ISO container.

Bulk material storage units that can be placed on flatbeds that can be hauled in various manners, including rail cars or trucks, to the destination and removed from the flatbed for temporary storage at the destination, freeing the transportation mode, e.g., rail cars or trucks, to be used elsewhere. Embodiments of the bulk material storage unit of the present invention replace rail hopper cars or truck trailers to hold the bulk material during transportation as well as provide temporary storage at the desired location, e.g., the origin or destination, without tying up transportation resources.

Bulk material storage units that can be placed on flatbeds that can be hauled in various manners, including rail cars or trucks, to the destination and removed from the flatbed for temporary storage at the destination, freeing the transportation mode, e.g., rail cars or trucks, to be used elsewhere. Embodiments of the bulk material storage unit of the present invention replace rail hopper cars or truck trailers to hold the bulk material during transportation as well as provide temporary storage at the desired location, e.g., the origin or destination, without tying up transportation resources.

A mold that abuts an innerliner against a mold surface of a mouthpiece comprises two molds, an upper mold and a lower mold. The upper mold comprises a heating portion that heats an outer abutting surface that abuts the cylinder portion of the innerliner against the first annular surface of the mouthpiece and comprises an upper mold side positioning cylindrical surface; and the lower mold comprises an inner abutting surface that abuts a section of a dome portion near the cylinder portion against a second annular surface of the mouthpiece and comprises a lower mold side positioning cylindrical surface that is capable of engaging with the upper mold side positioning cylindrical surface. The section that comprises the lower mold side positioning cylindrical surface is formed of a material with a lower thermal conductivity than that of the upper mold.

A mold that abuts an innerliner against a mold surface of a mouthpiece comprises two molds, an upper mold and a lower mold. The upper mold comprises a heating portion that heats an outer abutting surface that abuts the cylinder portion of the innerliner against the first annular surface of the mouthpiece and comprises an upper mold side positioning cylindrical surface; and the lower mold comprises an inner abutting surface that abuts a section of a dome portion near the cylinder portion against a second annular surface of the mouthpiece and comprises a lower mold side positioning cylindrical surface that is capable of engaging with the upper mold side positioning cylindrical surface. The section that comprises the lower mold side positioning cylindrical surface is formed of a material with a lower thermal conductivity than that of the upper mold.

Bulk material storage units that can be placed on flatbeds that can be hauled in various manners, including rail cars or trucks, to the destination and removed from the flatbed for temporary storage at the destination, freeing the transportation mode, e.g., rail cars or trucks, to be used elsewhere. Embodiments of the bulk material storage unit of the present invention replace rail hopper cars or truck trailers to hold the bulk material during transportation as well as provide temporary storage at the desired location, e.g., the origin or destination, without tying up transportation resources.