Klockner-humboldt-deutz Ag

Werner Strauss

Siegfried Heintges

Karl-Heinz Weiffen

Hannes S Horn

Werner Hasse

Helmut Timmermann

Julius Heinrich Stern, Deceased

Hans Stern, Deceased

Peter Wilczynski

Albert Kohlmann

A method and apparatus for treating minerals such as coal in a jig bed having a downwardly opening air chamber beneath the bed wherein the chamber has an air compartment at the upper end retaining a cushioned pillow of air between each jig pulsation with controlled air admitted and relieved from the chamber so that when air is relieved, the water rising in the chamber compresses the air at the upper end and a cushion of air is retained so that with admission of pressurized air, the cushion aids in forcing the column of water from the chamber, particularly at the beginning of operation of the jig.

Air pillow in the air chambers of a bottom pulsed jigging machine

A jigging machine, particularly a movable sieve jigging machine, for the preseparation of deads from valuable material comprises an oscillatory jig bed in the housing filled with separating fluid and comprises deads and valuable material discharge devices located therein, as well as an oscillatory drive for the jig bed. The jigging machine is suitable for underground mining operations in that the outer dimensions of the jigging machine, with respect to the height and width theeof, are designed smaller than the tunnel cross-section of an underground mining operation. A relatively low structure is achieved by designing the housing as a flat trough towards a deads discharge end with the deads discharge being provided as a rising conveyor parallel to the bottom of the trough. Advantageously it is achieved that the quantity of deads to be conveyed is reduced and a considerable saving is provided in terms of energy and expense.

Jigging machine

A wet jig mechanism for handling coal or other minerals wherein a container receives a slurry of water and coal and the water is pulsed by delivering an alternate charge of compressed air beneath the surface of the water and alternately venting the area beneath the surface with the alternate pulsing and venting controlled by a pulsing valve having valve chambers with one chamber having ports connected beneath the surface of the container and to a source of compressed air in the other chamber connected beneath the surface of the liquid in the container and vented to atmosphere with the ports being controlled by butterfly valve plates in each chamber mounted on a common shaft and the chambers having liners or bushings rotatable to control the ports and time and duration of opening of the ports.

Pulse generator for an air pulsed jigging machine

A jigging machine comprises at least one pulsation chamber, particularly for finest grain sizing of coal or other minerals which traverse the jigging machine on the jig bed which is shorter in the direction of motion of the minerals that at right angles to the direction of motion, whereby the jigging machine is designed as a bottom-pulsed machine. The jigging machine comprises curved lateral walls whose curvature is such that only tensile stresses occur in the walls, is designed suspended in an upper frame, and has the pulsation chamber disposed immediately below the jig bed which rests on cross tie rods.

Short, broad jigging machine, particularly for finest grain sizing of

A wet jigging mechanism for handling coal or other minerals including a mineral containing tank, a pulsed air chamber opening downwardly into the tank, a compressed air source with a conduit and a vent conduit with valves in the conduit, the valves including pivotal butterfly valves on a shaft with a swing flap operator operated by the compressed air to move the butterfly valve and the swing wing engaging a variable positioned rubber stop damper at the open position of the butterfly valve, and a rubber seat for the butterfly valve in closed position acting as a damper.

Wet jigging machine for dressing coal or other minerals

A method and mechanism for dewatering fine coal or the like by a filtering operation including a horizontally disposed cylindrical housing defining a pressure chamber within, an intermittently movable filter belt wrapping support rolls for the belt at each end with the rolls having driving and braking devices, movable sealing devices positioned at openings to the chamber to seal the belt where it extends into and out of the chamber, a support for the belt with means for draining filtrate dewatered from the coal, and means to apply pressure to the chamber above the belt for dewatering the coal and for providing pressure beneath the support for the belt to balance forces within the housing.

Pressure/belt filter, particularly for dewatering fine coal

A control apparatus for a rotary valve-driven jigging machine for processing coal or other minerals, particularly for a rotary valve-driven throughput jigging machine whose pulse chambers periodically are charged with compressed air in order to generate a pulse motion and are disposed under the jig screen, is characterized in that the level of the working air pressure in the pulse chambers is changed as a function of changes of the size of the stroke of the separating liquid. The change of the level of the working air pressure in the pulse chambers occurs by a controlled throttling of the outgoing air and/or of the incoming air.

Control device for a rotary valve-controlled jigging machine

A wet settling machine having a jig screen has the separating liquid mechanically pulsed and the energy of the pulsations is stored in and released from sealed air chambers which open downwardly into the settling liquid.

Operating method and settling machine for processing coal

Method and apparatus for classifying articles of varying size from a stream of particulate material in which the stream is subjected to centrifugal forces to provide an annular dispersion, and a stream of air is directed substantially perpendicular through the dispersion to aid in separating the fines from the coarser particles.

Method and apparatus for the classification of fine material from a

Wear members in separators, cyclones, pipelines and similar apparatus, which are abrasively worn by a particle-conducting flow, said wear members having increased durability as a result of increased surface roughness.

Parts subject to wear in separators, cyclones, pipelines and similar

Settling classifier for sorting mineral raw materials into at least three components includes container means wherein at least two separating baths of different density are received, the container means having a partition therein separating the baths one from another, a bucket wheel coordinated with the container means so as to be in communication with the separating baths and being rotatable in a plane extending parallel to the partition, the bucket wheel having a dividing ring therein operatively engaging the partition and dividing the bucket wheel into parts corresponding to the respective baths, the separating baths having respective elongated quadrilateral surfaces, the longitudinal direction of which extends in axial direction of the rotary bucket wheel.

Settling classifier for sorting mineral raw materials

Rotary distributor plate for distributing particles of solid or liquid material in a centrifugal-type classifier includes a plate-like member having an upper surface, and means carried by the surface for uniformly throwing off from the plate-like member particles of material fed thereto.

Rotary distributor plate for a centrifugal air classifier

A centrifugal separator is provided with a rotary distributor provided with a plurality of vertically spaced coaxial rotating disks, in which the upper rotating disk is of smaller diameter than the lower rotating disk. The distance between the disks may be adjustable. The lower disk baffles an updraft separating air current whereby powdered material is separated from the coarser material as centrifuged from the upper disk, and any material escaping the upper disk without being thrown thereby into the air stream drops down on the larger lower disk and is thrown into the air stream by the lower disk. Either or both of the disks may be provided with agitator vanes.

Centrifugal separator with rotary distributor

An agitation flotation cell for the preparation of minerals and coals having a vertical rotatable shaft surrounded by an air intake pipe with upper and lower annular plates coaxial with the shaft each having central agitation intake openings and an agitator carried on the shaft between the plates including a plurality of outwardly extending agitator paddles having axially facing surfaces with the paddle surfaces positioned at different oppositely disposed angles relative to an orbit plane at right angles to the axis of the shaft producing opposed axial thrust forces on the material agitated in the shaft with radially extending vanes between the paddles with the vanes being substantially parallel to the shaft.

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Bochum, Germany

Werner Strauss