Apparatus and method of emptying a material-filled bulk bag of the type having a bottom discharge spout which is releasably closed above a bottom end of the spout being released and opened after the bottom end of the spout is releasably and sealably attached to a material receiving conduit so as to provide a substantially dustless emptying procedure.

Bulk bag emptying apparatus and method

An apparatus for transferring powder from a bulk supply to a container comprising a first conduit extending from the bulk supply to the container, an inflatable annulus (21) made preferably from natural rubber, secured towards the end of the conduit and adapted to enter into air-tight engagement with the wall of a container which can be a bag or sack having flexible walls or a drum or carton having rigid walls The apparatus is also provided with a second conduit having an opening in the container to allow air displaced by powder entering to escape The second conduit communicates with an exhaust fan (16) to assist the removal of displaced air A third conduit is also provided having an opening within the container This opening is placed in close proximity to the outlet situated within the container of the second conduit When the exhaust fan operates a stream of air enters the container through the third conduit and passes first through the container causing minimum of disturbance to powder which has been delivered and then through the second conduit This arrangement prevents powder accumulating in the second conduit The apparatus preferably forms part of a weighing machine so that predetermined quantities of powder can be delivered accurately into the container

Powder dispensing apparatus

Apparatus and method for filling a bulk container with particulate material from a source through a filling spout assembly that includes a pair of concentric inner and outer tubes connectable to the source and to a container opening, respectively, whereby while material is being delivered to the container from the source through the inner spout member, air is introduced into the container and is being exhausted from the container through a pair of air transfer ducts.

Apparatus for filling a lined container

A method for loading a predetermined amount of particulate material into a container comprising providing a hopper containing a supply of the particulate material and a movable plate at least partly below the hopper, with the plate having a series of openings extending therethrough. The particulate material in the hopper is allowed to flow into and fill at least some of the openings in the plate, and the density of the particulate material in the openings is controlled. The plate is moved to move the filled openings to a filling station, and the particulate material from the openings is transferred to a container at the filling station. A plurality of the filled openings is used to deliver particulate material to each container so that any differences in the quantity of particulate material in the filled openings tends to be averaged.

Method and apparatus for the accurate delivery of powders

The present invention relates to a bag filler apparatus (20) for filling bags (105) with a powdered product, the bags (105) commonly having side walls interconnecting an open top portion and a closed bottom portion. The bag filler apparatus (20) includes a support framework (78) supporting a surge hopper (28) and a scale hopper (60) interconnected so as to provide a path for the flow of the powdered product from the surge hopper (28) to the scale hopper (60). A feed auger (30) is provided for conveying the powdered product to the surge hopper (28) while a butterfly valve (66) controls the flow of the powdered product into the scale hopper (60) from the surge hopper (28). The scale hopper (60) is provided with weight sensitive elements (76) for sensing the weight of the powdered product in the scale hopper (60). A butterfly valve (86) and a fill chute (98) provide for discharge of the powdered product from the scale hopper (60). A fill chute adaptor (104) circumferentially surrounds the fill chute (98) so as to define an annular space (106) wherein a partial vacuum condition is created during the bag filling process such that the bag filling operation is essentially dust free. In addition, the partial vacuum condition in the annular space (106) retains the bag (105) on the fill chute adaptor (104) when empty and facilitates retention during the actual filling process.

Bag filler apparatus

Apparatus for transferring pulverulent or granular material from an opening at the lower end of a silo into a vessel which is moved to a position below such opening has a vertical duct with a rigid upper section which is affixed to the silo, a rigid lower section which is surrounded by and is rigidly connected to a downwardly tapering funnel and serves to discharge flowable material into the vessel by way of an opening in the top wall of the vessel, and a bellows which is disposed between and is separably connected with the two rigid sections. The lower section and the funnel are movable up and down by means of a winch and several cables or chains whose lower end portions are attached to the funnel and/or to the lower section. A cover which normally overlies the open upper side of the funnel is movable to a raised position in which it surrounds the upper section of the duct. This provides room for insertion of an outer bellows whose lower end portion is sealingly connectable with the upper end portion of the funnel and whose upper end portion is connectable with the marginal portion of the cover. Air which is expelled from the vessel flows between the funnel and the lower section of the duct in the lower position of the cover; such air escapes by way of a pipe on the cover. When the cover is raised and the outer bellows surrounds the bellows of the duct, the compartment admits air into the annular space between the two bellows, and the air again escapes by way of the aforementioned pipe on the cover.

Stanelle Karl-Heinz

Papers

Apparatus for transferring flowable materials from a first vessel into a second vessel

Beladevorrichtung fuer rieselfaehiges schuettgut