Patents by Inventor Meinhard Frangenberg
Meinhard Frangenberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140234021Abstract: A flange connection on a shaft having at least two diameters of different size, wherein the diameter of the flange connection is smaller than a diameter of the roller bearing seat. Machine parts on the shaft can thereby be rapidly and simply interchanged without the flange having to be removed in the process.Type: ApplicationFiled: September 20, 2012Publication date: August 21, 2014Inventor: Meinhard Frangenberg
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Publication number: 20140183291Abstract: A grinding roller comprising hard bodies embedded in the surface for fixing a material bed. The hard bodies are received in a sleeve respectively and are embedded in the surface. As a result, the sleeves can be removed more easily from the surface after use and wear of the grinding roller for restoring the surface.Type: ApplicationFiled: June 19, 2012Publication date: July 3, 2014Applicant: KHD Humboldt Wedag GmbHInventor: Meinhard Frangenberg
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Publication number: 20140048634Abstract: A method for regulating the roll gap pressure of a roller press and a corresponding roller press. The roll gap pressure is regulated dependent on at least one oscillating movement that is measured on the roller press. This has the advantage that the roller press can always be operated at the maximum roller press efficiency without the roller press reaching the overload range.Type: ApplicationFiled: March 23, 2012Publication date: February 20, 2014Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Dieter Brendler, Meinhard Frangenberg, Hans-Peter Makulik, Stefan Seemann
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Publication number: 20130186160Abstract: A closing element for a machine frame of a rolling press, that sits on the end of a frame element as a hasp. The closing element includes and element enabling a pendular motion on the frame element. In this way, a floating mounting of the closing element is achieved. This enables a very fast dismounting that facilitates the replacement of the rolls, and leads to an optimum arrangement of the closing elements on corresponding end pieces of the machine frame.Type: ApplicationFiled: October 11, 2011Publication date: July 25, 2013Applicant: KHD Humboldt Wedag GmbHInventor: Meinhard Frangenberg
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Publication number: 20130087645Abstract: A profiled binding for use in a roller press. An alloy containing a high degree of chromium is used. A high wear-resistance of the binding is thereby achieved, said binding not being sensitive with respect to build-up weldings in order to reconstruct the profile after wear.Type: ApplicationFiled: May 6, 2011Publication date: April 11, 2013Inventor: Meinhard Frangenberg
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Publication number: 20130087054Abstract: A roller press for the pressure treatment or compaction of granular material, having at least two rolls formed as freely rotating rolls, in each case rotatably mounted in a machine frame by a shaft, driven in opposite directions and separated from one another by a roll gap. The shafts of the rolls are accommodated in bearing housings movably mounted in the machine frame and in each case two bearing housings arranged on one side of the rolls and belonging to different rolls are connected to each other via at least one pressure cylinder. The connection between the bearing housings in each case has at least one torque balance. In this way, the structure of a roller press having roller centering is simplified and can be produced more cost-effectively.Type: ApplicationFiled: December 22, 2011Publication date: April 11, 2013Inventor: Meinhard Frangenberg
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Patent number: 8388772Abstract: A method for the production of an annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures. The annular casing is cast of nodular cast iron with at least the alloying elements Ni and Mo. The cast body is given a bainitic structure with residual austenite by a subsequent heat treatment followed by controlled cooling. The outer surface is constantly re-hardened during use via pressure loading such that martensite is constantly formed in boundary layers of the outer surface.Type: GrantFiled: November 12, 2010Date of Patent: March 5, 2013Assignee: KHD Humboldt Wedag GmbHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Publication number: 20130025476Abstract: A machine frame for a high-pressure roller press for receiving the rollers in the bearings of the press, including at least one first frame element below the rollers and at least one second frame element. At least one connecting element is provided for connecting the at least one first frame element to the at least one second frame element. The at least one connecting element has a U-shaped design forming two limbs. With this design, the frame can be constructed with smaller dimensions than current constructions and in one piece, because no releasable connections are necessary with this configuration of the machine frame. This design saves weight.Type: ApplicationFiled: March 16, 2011Publication date: January 31, 2013Applicant: KHD HUMBOLDT WEDAG GMBHInventor: Meinhard Frangenberg
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Publication number: 20120204617Abstract: A lateral wall arrangement for laterally bounding the roller gap of a roller press having rollers supported in a machine frame, driven in opposite directions, and forming a roller gap, comprising a lateral wall, an assembly device, and a suspension for the lateral wall, wherein the lateral wall is supported in a spring-loaded manner by the suspension. The suspension is a linkage in the simplest case. It is thus achieved in an advantageous manner that the lateral wall is both easy to dismantle and is able to follow deflection motions of the rollers.Type: ApplicationFiled: October 15, 2010Publication date: August 16, 2012Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Andor Hambalkó, Meinhard Frangenberg, René Van Der Ende
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Publication number: 20120067989Abstract: In order to create a roller press, particularly for comminuting a bed of material, the roller press having two rollers separated from each other by a roller nip and using hydraulic cylinders to press the one roller against the oppositely situated roller over the material situated in the roller nip, the stress on the surface of the rollers to be reduced and their service life to be increased, it is proposed according to the invention that both rollers are designed as loose rollers that are displaceable transversely relative to the roller nip, the bearing housings of the rollers being supported on side parts of the machine frame by hydraulic cylinders that apply the roller compaction pressure.Type: ApplicationFiled: November 28, 2011Publication date: March 22, 2012Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Alexander Hagedorn, Christian Splinter, Meinhard Frangenberg, Matthias Mersmann
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Patent number: 8066211Abstract: A closed-circuit grinding plant for grinding coarse material into a fine material, in particular for generating cement raw meal and/or cement from cement clinker, the plant having at least two roller presses disposed about a central riser shaft which pneumatically transports the fine material or pulverizing the coarse material, at least two sifters for separating the fine material generated during the pulverization from still existing coarse material, and at least two fine material settling devices for settling the fine material from the sifting air of the sifters.Type: GrantFiled: November 19, 2008Date of Patent: November 29, 2011Assignee: KHD Humboldt Wedag GmbHInventors: Alexander Hagedorn, Meinhard Frangenberg
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Publication number: 20110114770Abstract: The invention relates to a roller press comprising at least two rotatably mounted, counter-rotating rollers, separated by a roller nip, wherein at least one roller is driven by a gear. According to the invention, a coupling is situated between the gear and the driven roller or rollers. The advantage of the invention is that it provides a connection between the drive and the milling roller which permits simple, rapid disassembly and assembly of the connection between the shaft and the drive.Type: ApplicationFiled: June 17, 2009Publication date: May 19, 2011Applicant: KHD HUMBOLDT WEDAG GMBHInventor: Meinhard Frangenberg
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Publication number: 20110061773Abstract: A method for the production of an annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures. The annular casing is cast of nodular cast iron with at least the alloying elements Ni and Mo. The cast body is given a bainitic structure with residual austenite by a subsequent heat treatment followed by controlled cooling. The outer surface is constantly re-hardened during use via pressure loading such that martensite is constantly formed in boundary layers of the outer surface.Type: ApplicationFiled: November 12, 2010Publication date: March 17, 2011Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Patent number: 7896272Abstract: A tandem roller press has two roll pairs which are arranged next to one another in an axially parallel manner in order to provide a roller press system, in particular for the material bed comminution of granular material, which can considerably exceed previous limits with regard to throughput performance but also with regard to the specific energy requirement. Preferably, common feeding of the granular material and common discharge of the material which has been subjected to the material bed comminution are arranged. A tandem separator device may be arranged below the two roll pairs in order to form two parallel compact milling circuits with a high throughput performance overall.Type: GrantFiled: January 31, 2007Date of Patent: March 1, 2011Assignee: KHD Humboldt Wedag GmbHInventors: Meinhard Frangenberg, Alexander Hagedorn, Christian Splinter
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Patent number: 7841273Abstract: The aim of the invention is to simplify and to improve mounting of roller bearings in double roller machines, for example, roller presses for interparticle comminution of granular goods. The rollers and the bearing housing thereof are formed by means of slanting rollers and/or thermal roller longitudinal changes. The rollers are guided in a secure manner on the slide guides thereof. The invention is characterized in that the fixed bearing housing and the moveable bearing housing are connected together via a guide rod in each roller.Type: GrantFiled: June 10, 2005Date of Patent: November 30, 2010Assignee: KHD Humboldft Wedag GmbHInventors: Christian Splinter, Meinhard Frangenberg
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Patent number: 7841552Abstract: A two-roll machine has two rolls rotatably mounted in bearing housings, driven in opposite directions and separated from each other by a roll gap. One roll is a loose roll with bearing housings horizontally supported on machine frame side parts by hydraulic cylinders applying a roll pressing force. The other roll is a fixed roll with bearing housings horizontally supported on frame end pieces. The bearing housings are mounted on sliding tracks of two lower-flange and two upper-flange machine brackets. The two-roll machine includes a lower frame adjacent to the fixed roll, the lower frame lengthening the two lower-flange machine brackets. A transverse frame is connected to the two upper-flange machine brackets, the transverse frame having a clear opening width which permits the rolls to be moved through the transverse frame onto the lower frame. The frame end pieces are releasably connected to the lower-flange and upper-flange machine brackets.Type: GrantFiled: September 16, 2006Date of Patent: November 30, 2010Assignee: KHD Humboldt Wedag GmbHInventors: Meinhard Frangenberg, Alexander Hagedorn
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Patent number: 7832671Abstract: An annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures, it is proposed according to the invention that the material of the casing consists of nodular cast iron with at least the alloying elements Ni and Mo and with a bainitic structure with residual austenite, and in that, to achieve a self-hardening surface, the boundary layer of the annular casing—contains martensite, which is constantly renewed by external pressure loading of the casing surface when the press roller is in operation.Type: GrantFiled: September 7, 2005Date of Patent: November 16, 2010Assignee: KHD Humboldt Wedag GmbHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Publication number: 20100219278Abstract: A closed-circuit grinding plant for grinding coarse material into a fine material, in particular for generating cement raw meal and/or cement from cement clinker, the plant having at least two roller presses disposed about a central riser shaft which pneumatically transports the fine material or pulverizing the coarse material, at least two sifters for separating the fine material generated during the pulverization from still existing coarse material, and at least two fine material settling devices for settling the fine material from the sifting air of the sifters.Type: ApplicationFiled: November 19, 2008Publication date: September 2, 2010Inventors: Alexander Hagedorn, Meinhard Frangenberg
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Publication number: 20100127110Abstract: In order to create a roller press, particularly for comminuting a bed of material, the roller press having two rollers separated from each other by a roller nip and using hydraulic cylinders to press the one roller against the oppositely situated roller over the material situated in the roller nip, the stress on the surface of the rollers to be reduced and their service life to be increased, it is proposed according to the invention that both rollers are designed as loose rollers that are displaceable transversely relative to the roller nip, the bearing housings of the rollers being supported on side parts of the machine frame by hydraulic cylinders that apply the roller compaction pressure.Type: ApplicationFiled: July 13, 2007Publication date: May 27, 2010Inventors: Alexander Hagedorn, Christian Splinter, Meinhard Frangenberg, Matthias Mann
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Patent number: 7699254Abstract: In the design of a twin-roller machine, such as a roll press for comminuting a bed of granular material, with two rotatably mounted, counter rotationally driven rollers which are separated from each other by a roller nip, and which use hydraulic cylinders to provide a roller pressing force the hydraulic cylinders are arranged in such a manner that they act in each case both on the bearing housings of one roller and on the respectively opposite bearing housings of the other roller with a self-contained system of milling pressing forces being formed without a closed machine frame loaded by the roller pressing forces.Type: GrantFiled: February 7, 2006Date of Patent: April 20, 2010Assignee: KHD Humboldt Wedag GmbHInventors: Meinhard Frangenberg, Christian Splinter, Alexander Hagedorn