Systems and methods for efficiently managing bulk material are provided. The disclosure is directed to a portable support structure used to receive one or more portable containers of bulk material and output bulk material from the containers directly into the blender hopper. The portable support structure may include a frame for receiving and holding the one or more portable bulk material containers in an elevated position proximate the blender hopper, as well as one or more gravity feed outlets for routing the bulk material from the containers directly into the blender hopper. In some embodiments, the portable support structure may be transported to the well site on a trailer, unloaded from the trailer, and positioned proximate the blender unit. In other embodiments, the portable support structure may be a mobile support structure that is integrated into a trailer unit.

The valve comprises a fluid inlet and/or outlet duct (8) comprising a flowrate regulator element (9) and a seating (10) for said fluid inlet and/or outlet duct (8), said seating (10) including a surface (10b) adapted to be attached to a portion of an internal bag (4) made of flexible material in the container (1), and is characterised in that it comprises a cover (11) to protect said seating (10) and comprising a hole for access to said fluid inlet and/or outlet duct (8); said cover (11) comprising means (13, 14) for securing a protective wrapping (5) enveloping the internal bag (4) on said seating (10). The container is characterised in that it includes at least one valve (3a, 3b) for the injection and/or extraction of fluid, and in that a portion of said internal bag (4) made of flexible material is attached to the seating (10) of the inlet duct (8) of said valve (3a, 3b) and that a portion of the protective wrapping (5) for said internal bag (4) is held against said seating (10) by the cover (11).

A type of liquid bag with the function of box protection for multi-functional transportation and storage, including box body, non-independent box body liquid bag, independent box body liquid bag, non-independent box body liquid bag includes upper liquid bag body, liquid bag upper port valve, liquid bag lower port valve and lower liquid bag body. The box is an open design at one end. The box body is set with a lower liquid bag body. The lower liquid bag body is located at the open end of the box with a liquid bag lower valve. The lower liquid bag body is not in contact with the side wall of the inner cavity of the box. The upper liquid bag body is set above the lower liquid bag body.

A type of liquid bag with the function of box protection for multi-functional transportation and storage, including box body, non-independent box body liquid bag, independent box body liquid bag, non-independent box body liquid bag includes upper liquid bag body, liquid bag upper port valve, liquid bag lower port valve and lower liquid bag body. The box is an open design at one end. The box body is set with a lower liquid bag body. The lower liquid bag body is located at the open end of the box with a liquid bag lower valve. The lower liquid bag body is not in contact with the side wall of the inner cavity of the box. The upper liquid bag body is set above the lower liquid bag body.

A flexible tank fillable with a liquid having a base and at least one enclosing wall. The base has an upper surface and a lower surface, and defines a plurality of edges and a perimeter. The enclosing wall extends about the base and is attached thereto to, together with the base, define an enclosure. The inner brace assembly comprises at least one inner support member having a base wall attachment side and an encasing wall attachment side. The base wall attachment side is attached to the base spaced apart from the perimeter. The encasing wall attachment side is attached to the at least one enclosing wall spaced apart from the base fold.

A flexible tank fillable with a liquid having a base and at least one enclosing wall. The base has an upper surface and a lower surface, and defines a plurality of edges and a perimeter. The enclosing wall extends about the base and is attached thereto to, together with the base, define an enclosure. The inner brace assembly comprises at least one inner support member having a base wall attachment side and an encasing wall attachment side. The base wall attachment side is attached to the base spaced apart from the perimeter. The encasing wall attachment side is attached to the at least one enclosing wall spaced apart from the base fold.

A fabric bulk bag and a method for constructing the same, the bag including a continuous sidewall, a top portion, and a bottom, all defining a bulk storage space therein; the bottom further comprising eight sides which define an octagonal shape having an enlarged footprint so that the bag wall is sewn to the bottom in less time than a round shaped bag, yet when filled stands more upright with less tendency to lean than the current square shaped bags thereby providing a safer more dependable stacking bulk bag. In the method of producing the fabric bulk bag, the bag is constructed in less time than the prior art round bottom bags, uses less wall fabric than prior art square bottomed bags and when constructed and filled, supports itself more stable on a floor or pallet because it provides substantially more base for the product to rest on. In other embodiments, the bag would be multi-sided with greater than four sides.

A stitchless highly oriented polypropylene fabric bulk bag of the type that can hold 500 to 5000 pounds (226.7 to 2268 kilograms) of bulk material includes a highly oriented polypropylene fabric top, body and bottom, with a heat fused joint providing an air tight connection between the top and body, and another air tight heat fused joint connecting the body and bottom. A fill spout and discharge tube may also be provided with an air tight heat fused joint connecting the fill spout to the top and another air tight heat fused joint connecting the discharge spout to the bottom. Heat sealing machinery include heat seal bar assemblies that can self-align during heat-sealing to apply even pressure to all areas being heat sealed. A heating element is of single piece construction and can include end coupler portions as part of the single piece construction. Carrier plates used in a heat-sealing assembly line guide parts placement, provide quality checks for parts placement, and tooling set-up for machinery.

A system for holding multiple beverage containers may include a cooler or carrier with toting handles, closing tabs, and base. The base may be formed from a molded plastic, rubber or synthetic rubber material. The base may also include feet that hold the base a sufficient height from the ground. The base may have a generally conic tapering drain floor that makes up its top surface. The tapering drain floor may make draining the carrier easier by directing water toward a drain hole located in the base. Extending up from the base may be a multi-layer soft-sided wall where different layers perform different desired functions. For example, an inside layer closest to the internal cavity may be a waterproof layer, a middle layer may be an insulating layer, and an external layer may be a decorative layer.

A system for holding multiple beverage containers may include a cooler or carrier with toting handles, closing tabs, and base. The base may be formed from a molded plastic, rubber or synthetic rubber material. The base may also include feet that hold the base a sufficient height from the ground. The base may have a generally conic tapering drain floor that makes up its top surface. The tapering drain floor may make draining the carrier easier by directing water toward a drain hole located in the base. Extending up from the base may be a multi-layer soft-sided wall where different layers perform different desired functions. For example, an inside layer closest to the internal cavity may be a waterproof layer, a middle layer may be an insulating layer, and an external layer may be a decorative layer.