A slide valve for a powdered material or a material with a small grain size. The valve comprises a stiff frame, which defines a discharge mouth to discharge the material, and a shutter of the discharge mouth, which is activated by respective moving organs. The valve is characterized in that it comprises a height adjusting device for a sealing element. The height adjusting device is suited to compensate the loss of sealing effect between the lower face of the sealing element and an upper surface of the shutter. The loss of sealing power is due to the wear generated by the relative friction between the lower face and the surface.

An apparatus for the transport and storage of proppant has a container with a top wall, a pair of end walls and a pair of side walls. The pair of side walls extend between the pair of end walls. The container has a bottom discharge opening. The container includes a funnel extending from the pair of side walls and from the pair of and walls toward the bottom discharge opening. The funnel has sides extending in an angle of greater than 25° with respect to horizontal. The funnel includes a pair of side plates extending respectively from the pair of side walls toward the bottom discharge opening and a pair of end plates extending respectively from the pair of end walls toward the bottom discharge opening. Each of the side plates and the end plates is formed of a stainless steel material.

An intermodal container for transporting frac proppant, such as frac sand, and/or other types of granular material is disclosed. The intermodal container is designed to receive frac sand from a quarry or other frac sand supply source. Once the container is filled with material, the container is loaded onto a transportation device and transported to a well site. Once received at the well site, the containers can be stacked and the frac sand stored until needed. Once the frac sand is needed, the containers are placed on a base unit and the container discharges its contents onto a conveying system formed as part of the base unit. The conveying system directs the frac sand to a blending location. The empty intermodal containers can be removed from the base unit and loaded onto a transportation device to be refilled at a mine site.

In one aspect there is provided a hopper, for use with a grain bin having a gate assembly with bolts or flanged edges. The hopper comprises a concave shape, a bottom, and hopper walls forming a chamber with an open top for receiving granular materials from the gate assembly. A mounting member is positioned on the hopper walls adjacent the open top to mount the hopper from the gate assembly's bolts or flanged edges.

A hopper-in-frame for transporting granular proppant material, such as oil well sands subjected to fracturing, having a top loading through a hatch in the roof and lateral gravity discharge opening at the level of the hopper floor and not below the hopper through a lower side discharge opening where the load asymmetry is compensated for by the inclusion of an asymmetric roof that includes at least a portion of the roof asymmetrically lowered, such as a sloping roof or sloping to the side of the wall of download. The hopper-in-frame is supported and delimited by a frame that in turn is compatible to be incorporated in intermodal cargo containers.

A system may include a closure actuation assembly to actuate a bin closure apparatus on a storage bin apparatus, and the assembly may include a gate movement structure to move a gate of the closure assembly. The gate movement structure may include a movement rod for engaging the gate. The actuation assembly may further include a support structure which in turn includes a support beam for mounting on the bin elevating structure, a securing element provided on the support beam for securing the support beam, and a support plate mounted on the support beam and having an adjustment slot for passing the movement rod therethrough. The support structure may include a support slide mounted on the support plate and having a support aperture to receive the movement rod passing through the adjustment slot. The position of the support slide over the adjustment slot may be adjustable.

A container system for storage and transport of phosphorous pentasulfide. The container system can include a container body and a lid. The lid is configured to screw onto a mouth of the container body. The lid can include a lock for locking the lid in position on the mouth. The lid is configured for engagement by a tool to facilitate turning the lid to screw the lid on the mouth.

A logistics apparatus for transporting frac sand, frac liquid, and/or drill cuttings between a terminal and a well pad. The apparatus includes a container having a top and bottom. The top having one or more inlet port for receiving frac sand and a liquid outlet. The inlet orts can be secured by watertight covers. The bottom of the container is configured as a hopper having an opening secured by a railcar gate. The apparatus, in position having the railcar gate at bottom, can be used to store and transport frac sand. The apparatus can be inverted for transporting the frac liquid.

An airtight device includes a container and an airtight cover on the container, and the airtight cover includes a fixing bracket, a door, and a pressuring handle. The fixing bracket has a through hole and a guiding slot, and the through hole communicates with internal space of the container. The guiding slot has adjacent first and second top surfaces, and the second top surface is higher than the first top surface. The door selectively covers the through hole. The pressuring handle pivoted on the door has a first section, a second section, and a rotating axis between the first and second sections, and the first section rotates relative to the second section. The second section receives a force to drive the first section to move from below the second top surface to below the first top surface such that the rotating axis pressures the door.

The present invention discloses a container, comprising a container body and a lid, the container body comprises a base and side plates, the lid is provided with a first hanging-against structure, the side plate is provided with a second hanging-against structure cooperating with the first hanging-against structure, the first hanging-against structure and the second hanging-against structure are separatable to achieve hanging-against and removal of the lid, the lid is slidable above the container body whereby the first hanging-against structure and the second hanging-against structure are brought close to or away from each other, wherein the first hanging-against structure is slidable along the lid for a certain distance so that the position of the center of gravity of the lid changes relative to the first hanging-against structure. The present invention can realize the multi-directional hanging function of the lid and the container, with novel and reliable structure, simple and convenient operation, solid and durable.