The object of the invention is a floating split butterfly valve that allows connection of two processing devices or containers in a way that one of the devices (e. g. a transport device or a container) is closed by one half of the valve (passive part) while the other device (e. g. a stable device or a container) is closed by another half of the valve (active part), wherein the material (powder and/or liquid substance) transferred from one device/container into another device/container cannot get trapped in dead corners of the valve and does not get accumulated in the equipment. The construction of the floating split butterfly valve of the invention provides for the fact that due to the arrangement of shafts (5, 5a) of split flaps (2, 2a) in a housing of an active and a passive part of the valve via displaceable (floating) hinges (3, 3a), seals (1, 1a) of the active and passive parts of the valve are flush with the level of the split flaps (2, 2a) on the active and passive parts, when the valve is in a closed position, while the seals (1, 1a), while in an opened position, are arranged by a distance X higher than valve housings (4, 4a) and the flaps (2, 2a) and the seals (1, 1a) remain on the same level due to clearance S1=X.

A proppant delivery assembly receives and supports a plurality of containers having proppant stored therein. A cradle has a top surface which receives and supports the plurality of containers when positioned thereon. The cradle enables the plurality of containers to dispense the proppant stored therein. A proppant mover is positioned to underlie and extend along the top surface of the cradle aligned with the plurality of containers to receive proppant from the plurality of containers. The proppant mover carries proppant away from the plurality of containers. A chute is coupled to the cradle for receiving proppant from the proppant mover and directing the proppant to a blender hopper. A hood assembly is disposed at an end of the chute opposite the proppant mover for directing a vacuum air flow that removes a volume of air containing proppant dust particles directed from the chute. The hood assembly includes a curtain extending about a perimeter of the hood assembly and downward therefrom to at least partially define the volume of air being removed by the hood assembly.

The invention relates to a transport system for pourable and flowable media having a coupling device (56), consisting of at least one first connection part (14) and a plurality of further connection parts (54), which are connected to the first connection part (14) by means of flexible, tubular connecting parts (16), which can be blocked by means of at least one closing device (68), after the release of which the connecting part (16) that can be associated is open for media transport, wherein, after media transport has occurred along a specified transport path, said transport path is blocked by means of a separate blocking device or is closed again by the closing device (68).

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

An apparatus for rotary dumping of rail cars, including a material receiving pit. A rotary rail car dumper includes a rotational frame supporting at least one baffle. The rotational frame is configured to dump a load from a rail car during rotational motion of the rotational frame between an upright position wherein the entire load is in the rail car and a dumping position wherein the load can exit the rail car. A backside airflow diverter is located beneath the rotational frame and includes a curved upper surface. A lower margin of the at least one baffle contacts the curved upper surface during at least part of the rotational motion of the rotational frame.

The invention relates to a connecting device (2) for connecting a container (F) containing a powder/granular product to an isolator (1) with a connecting opening (120), through which the container (F) is introduced into the isolator (1) for emptying as intended, wherein the connecting device (2) comprises: a holding device (220) being configured to receive the container (F) and hold it during connecting and emptying; a transfer device (210, 230) for transferring the holding device (220); and a control device for controlling the transfer device (210, 230); wherein the control device is configured to control the transfer device (210, 230) in such a way that it transfers the holding device (220) together with the container (F) from an initial holding position in which the container (F) is received in the holding device (220) as intended, into an emptying position such that at least an opening of the container (F), via which the powder/granular product is removed for emptying the container (F) as intended, is introduced into the isolator (1) through the connecting opening (120).

The invention relates to an isolator (1) for emptying a container (F) containing a powder/granular product, the isolator (1) comprising: a connecting device (1) for connecting a container (F) containing a powder/granular product to the isolator (1); a base body (100) which defines a connecting opening (120) via which an opening of the container (F) can be introduced at least in sections into an inner space of the base body (100) from an outside environment as intended wherein a lower ambient pressure is generated in the inner space of the base body (120) than in the outside environment, and wherein the connecting device (2) comprises a sealing device (250) arranged at the connecting opening (120) and having an adjustable sealing element (251) which can be adjusted in such a way that it
is pressed against an outer wall of the container (F) to produce a sealed state and closes the inner space from the outside environment, and
is released from the outer wall of the container (F) to produce an at least partially open state in such a way that a gap (S) is formed between the sealing element (251) and the outer wall of the container (F), wherein the gap (S) is formed in such a way that an air flow directed into the inner space of the base body (120) is generated due to the different ambient pressure.

Apparatus and method for reducing airborne proppant adjacent a fracking material handling system. In some embodiments, a proppant storage chamber is configured to store a volume of proppant. A blow-in adapter mates with a first port of the chamber to facilitate a flow of proppant into the chamber at an inlet pressure. A filter assembly covers and filter a first aperture of the chamber to reduce an emission of airborne proppant during the transfer of the proppant into the proppant storage chamber. A vacuum adapter mates with a second port of the chamber to supply a negative pressure to the chamber during the filling process to maintain an internal pressure within the chamber below a predetermined pressure threshold.

A system or method for adding dust control solution to a vertically falling first stream of a substantially dry sand-like particulate material, where the first stream has an effective diameter, the system or method includes a stationary, generally horizontal, deflector plate with a drop-off edge, the plate is mounted into the steam whereby the particulate material collides with the plate and cascades from the plate around the drop-off edge to create a second stream of the particulate material having the general shape of the drop-off edge with a reduced stream thickness and nozzles for spraying dust control solution into the second stream, which system or method is preferably for rapid transportation to the site for using the sand-like particular material.

Embodiments described herein relate to tray processing units for processing CO.sub.2 capture media. In some aspects a tray processing unit can include a loading dock configured to receive a caddy including trays disposed thereon, a collection station configured to receive trays from the loading dock and collect a carbonated medium from the trays, a filling station configured to transfer a carbonation medium to the trays, a first tray mover configured to transport the trays from the caddy at the loading dock to the collection station, an unloading dock configured to support the caddy while loading the caddy with trays, a second tray mover configured to transport trays from the collection station to the filling station, and a third tray mover configured to transport trays from the filling station to the caddy supported by the unloading dock.