Abstract

The invention relates to an apparatus for industrially processing bulk material, comprising a movable tool (2) and a screen (4), wherein the tool (2) and the screen (4) can process the bulk material such that the bulk material can pass through the screen (4) in processed form, and comprising a sample collecting device (9) with a strip-like inlet opening (21) for separating off a partial stream from the stream of material. The invention also relates to a method for continuously determining a particle size distribution using an apparatus according to the invention, comprising the steps: * bulk material is supplied to the apparatus; * the supplied bulk material is granulated by the tool (2) and the screen (4); * the granules exit from the bottom side of the screen (4) as a stream of material; * a partial stream is separated off from the stream of material by the sample collecting device (9): * the particle size distribution of the partial stream is continuously measured by a measuring probe of the apparatus. In addition to the particle size distribution, other values can also be measured, such as the density or porosity of the granules for example.

IPC Classes  ?

• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 18/16 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives Details
• B02C 13/02 - Disintegrating by mills having rotary beater elements with horizontal rotor shaft
• B02C 13/26 - Disintegrating by mills having rotary beater elements Details
• G01N 1/20 - Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials

Abstract

A device for granulating coarse material is disclosed herein. Examples of course material include pulverulent solids such as powder, grain, or mixtures thereof. The device includes a rotor, a screen, and an automatic distance adjusting unit. The rotor is configured to rotate/oscillate and press the coarse material through the screen in order to produce a granulate with a smaller granulate unit size compared to the coarse material. The automatic distance adjusting unit is configured to adjust a distance between the rotor and the screen.

IPC Classes  ?

• B02C 18/00 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like
• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B01J 2/14 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
• B01J 2/20 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
• B02C 25/00 - Control arrangements specially adapted for crushing or disintegrating
• B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material

Abstract

The invention relates to a device for granulating a coarse material which can comprise pulverulent solids such as powders, grains, or mixtures thereof for example. The granulating device comprises a rotatable and/or oscillating rotor (1) and a screen (2), and the rotor (1) is produced such that the rotor (1) can press the coarse material through the screen (2) in order to allow a granulate to be obtained with a smaller granulate size than that of the coarse material. The invention is characterized in that the granulating device comprises an automatic distance adjusting device for adjusting the distance (13) between the rotor (1) and the screen (2), said distance adjusting device being produced such that the distance (13) between the rotor (1) and the screen (2) can be reduced so as to produce a direct contact and subsequently increased to a specified target distance. A particularly high degree of productivity and granulate quality can thus be achieved.

IPC Classes  ?

• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material

Abstract

The invention relates to a device for granulating a coarse material which can comprise pulverulent solids such as powders, grains, or mixtures thereof for example. The granulating device comprises a rotatable and/or oscillating rotor (1) and a screen (2), and the rotor (1) is produced such that the rotor (1) can press the coarse material through the screen (2) in order to allow a granulate to be obtained with a smaller granulate size than that of the coarse material. The invention is characterized in that the granulating device comprises an automatic distance adjusting device for adjusting the distance (13) between the rotor (1) and the screen (2), said distance adjusting device being produced such that the distance (13) between the rotor (1) and the screen (2) can be reduced so as to produce a direct contact and subsequently increased to a specified target distance. A particularly high degree of productivity and granulate quality can thus be achieved.

IPC Classes  ?

• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material