Abstract: The invention relates to a material dispersion apparatus, particularly for spreading classifiers, with an upper material supply and a material feed surface. The material feed surface is constructed as a sieve-like surface, which is installed in an air channel and the material supply is fluidized above the sieve-like surface and discharged over the outer rim of the material feed surface to fall down to the spreading classifier basket.
Type:
Grant
Filed:
November 8, 1991
Date of Patent:
August 3, 1993
Assignee:
Christian Pfeiffer Maschinenfabrik GmbH & Co. KG
Abstract: The invention relates to a method for comminuting brittle grinding material. An overall economic optimization is required of methods performing only a single grain and material bed comminution in a first comminution stage. According to the invention the first comminution stage comprises precrushing the grinding material with a relatively well defined particle size, so that following stages can be designed for said particle size and consequently it is only necessary to have a lower specific energy requirement per grinding material quantity fed through.
Type:
Grant
Filed:
February 28, 1990
Date of Patent:
October 22, 1991
Assignee:
Christian Pfeiffer Maschinenfabrik GmbH & Co. KG
Abstract: The invention relates to a tube mill partition as the discharge or transfer wall. With a view to an improved air passage and a simple material flow regulation, in the case of this partition a substantially tubular central part is used, in that a rotary and/or wholly or segmentally axially displaceable adjusting ring regulates the material flow.
Type:
Grant
Filed:
January 29, 1990
Date of Patent:
October 15, 1991
Assignee:
Christian Pfeiffer Maschinenfabrik GmbH & Co. KG
Inventors:
Ralph Michelsen, Udo Schulze-Brockhausen, Herbert Weit
Abstract: The invention relates to a tube mill partition as a transfer or discharge partition. With a view to reducing wear and facilitating maintenance, separate wearing beams are used and the latter or the slotted plates can be easily replaced without any further assembly opening.
Type:
Grant
Filed:
January 16, 1990
Date of Patent:
May 21, 1991
Assignee:
Christian Pfeiffer Maschinenfabrik GmbH & Co., KG
Inventors:
Ralph Michelsen, Udo Schulze-Brockhausen, Herbert Weit, Erwin Schmitz