What is presented is an interface between a hopper and a dust receptacle of a dust collector system, wherein the hopper has an outlet through which collected dust drops. A slide gate is mounted to the outlet of the hopper and a spout is mounted to the slide gate. A lid is configured to secure to the top of the dust receptacle. The lid has a coupling configured to secure to the spout. A slot comprising a locking feature is located on either the spout or the coupling. A rod corresponding to the slot is mounted to the other of the spout or the coupling than which the slot is located. The lid may be removed from the dust receptacle by lifting the lid to move the rod through the slot and the lid is secured by twisting the coupling relative to the spout to move the rod into the locking feature.

What is presented is an interface between a hopper and a dust receptacle of a dust collector system, wherein the hopper has an outlet through which collected dust drops. A slide gate is mounted to the outlet of the hopper and a spout is mounted to the slide gate. A lid is configured to secure to the top of the dust receptacle. The lid has a coupling configured to secure to the spout. A slot comprising a locking feature is located on either the spout or the coupling. A rod corresponding to the slot is mounted to the other of the spout or the coupling than which the slot is located. The lid may be removed from the dust receptacle by lifting the lid to move the rod through the slot and the lid is secured by twisting the coupling relative to the spout to move the rod into the locking feature.

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.

Methods for handling bulk material in a manner that reduces dust, noise, and emissions are provided. The presently disclosed techniques use portable containers to transfer bulk material from a transportation unit to a blender inlet. The containers may be carried to the location on the transportation unit, where a hoisting mechanism is used to remove the container from the transportation unit and place it in a desired location. When bulk material is needed at the blender inlet, the hoisting mechanism may position the container of bulk material onto an elevated support structure. Once on the support structure, the container may be opened to release bulk material to a gravity feed outlet, which routes the bulk material from the container directly into the blender inlet. The disclosed containerized bulk material transfer system and method allows for reduced dust, noise, and emissions on location.

A dome cover assembly for automatically opening and closing a through-opening. The dome cover includes at least one reach-around element on one of a cover and flange. The reach-around element at least partially encloses, in a first rotational position, the other of the cover and the flange on a side facing away from the first element. The other of the cover and flange has a recess and, in the first rotational position, the reach-around element engages behind the recess in a first distanced position of the cover and the flange. The reach-around element does not engage behind the recess in a second closer position of the cover and the flange.

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 liquid storage vessel having a base with a bottom and an interior floor; a continuous side extending vertically from the base and having an interior surface, the bottom and continuous side each including an internal layer and an external layer separated by a material barrier, and configured such that the interior layers form an inner containment liner, and the external layers form a continuous exterior structural shell enclosing the inner containment liner. A top is affixed to the continuous side and has an interior ceiling. Access to the tank interior is provided by one or more manways. Mounting and connecting structures enable the tanks to be stacked directly atop one another and then structurally connected. The exterior structural shell is fabricated from high performance fiber reinforced concrete, and the inner containment liner is fabricated from a geopolymer concrete blend.

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.