US3845708A - Machine for compacting, pelletizing and/or briquetting - Google Patents

Machine for compacting, pelletizing and/or briquetting Download PDF

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Publication number
US3845708A
US3845708A US00357482A US35748273A US3845708A US 3845708 A US3845708 A US 3845708A US 00357482 A US00357482 A US 00357482A US 35748273 A US35748273 A US 35748273A US 3845708 A US3845708 A US 3845708A
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United States
Prior art keywords
cradles
lever
compacting
compression pressure
machine according
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Expired - Lifetime
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US00357482A
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English (en)
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H Liebert
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams

Definitions

  • ABSTRACT A compression pressure machine for compacting, pelletizing, or briquetting pulverant, fine grained or structurally voluminous products
  • the machine includes a frame supporting oppositely disposed lever cradles, these cradles in turn supporting two horizontally juxtaposed compacting rollers.
  • the lever cradles are pivotally connected to the frame, and connecting rods are attached to the lever cradles for movement of the cradle and associated rolls.
  • the connecting rods are operated by means of piston mechanisms associated with the machine frame with extension and retraction of the piston mechanisms serving to move the rolls toward and away from each other.
  • the positions of the lever cradles and associated operating mechanisms provide highly efficient means for achieving the desired forces while also providing an arrangement which is extremely efficient from the standpoint of machine construction and maintenance.
  • the invention relates to a compression-pressure machine for compacting, pelletizing or briquetting pulverant, fine grained or structurally voluminous products.
  • the construction generally comprises a machine frame and two horizontally juxtaposed compacting rollers positioned in lever cradles which in turn are articulated pivotably at one end to the machine frame. Press-on devices for pressing both compacting rollers toward each other and for thereby applying pressure to the material between the rolls are directly associated with the machine frame.
  • each compression pressure machine is the machine frame and/or the machine carriage in which two horizontally operating juxtaposed compacting rollers are positioned horizontally or bilaterally.
  • the provision of the oppositely disposed rolls is particularly called for in the case of compression pressure machines of high capacity for industrial production.
  • At least one compacting roller is usually movably mounted in the pressing direction, so that the width of the operating gap and/or the roller gap can be varied between both rollers. This is done for reasons of safety, for example, so that in case of overload, one roller can move away in relation to the other one.
  • the relative movement is desired to permit adjustment of the thickness of the pressed products discharged from the roller gap.
  • the compression means generating the pressing force acting in the roller gap bear down on the one hand at the machine frame, and on the other hand at the operating rollers, particularly at the ends of their shafts.
  • Design of machine frames according to the prior art are typically H, U and rectangular frames, usually disposed in a horizontal arrangement.
  • the pressureproducing members particularly the pistons or piston rods of hydraulic compression apparatuses, are fastened to the vertical machine frame, either integrally formed parts or connected to it separately, e.g., by means of bridge bolts arranged on the outside.
  • the pressure-producing members act inwardly in the direction of the horizontal central plane passing through both longitudinal axes of the rollers. Consequently, they must muster the entire pressing force required and transfer it as reactive force of the same magnitude to the connecting members or directly to the machine frame. Since the'frame is thus exposed .to these forces, the frame and the connecting and pressure-producing members must have high structural strength.
  • Compression pressure machines are known whose compact rollers are positioned in lever cradles.
  • the centers of gravity of the latter are located below the points of attack of the pressure-producing members and/or the compression devices are located above the roller shafts.
  • Such arrangements result in a diminished lever effect and consequently a reduction of the traction or pressure energy to be mustered for the pressing force of the compacting rollers results.
  • the pressure-producing members of the compression devices in the compression pressure machines of the prior art always act from the outside toward the inside on the lever cradles, additional supporting and fastening are necessary, which results in increased construction costs and space requirements.
  • lt is a general object of this invention to provide an improved apparatus for achieving the compacting, pelletizing and briquetting of pulverant, fine-grained or structurally voluminous products.
  • FIG. 11 is a schematic side elevation of a construction characterized by the features of this invention.
  • FIG. 2 is a schematic side elevation of the construction illustrated with the compacting rolls in the open position
  • FIG. 3 is a schematic side elevation of the construction illustrating the position assumed by the machine elements during disassembly.
  • this invention is directed to the problem of obviating the aforementioned disadvantages of the compression pressing machines of prior art and to create in addition an embodiment for which the manufacturing and production costs are simplified and reduced. Moreover, the invention provides operating characteristics which are improved under changing loads.
  • the invention provides in a compression pressure machine a machine frame and two horizontally juxtaposed compacting rollers. These rollers are supported in lever cradles which in turn are articulated pivotably at one end to the ma chine frame.
  • Devices for pressing the compacting rollers against each other are associated with the machine frame and are connected to the compacting rollers through the lever cradles.
  • the pressing devices are positioned to direct the pressing force in the vertical central axis between the ends of the shafts of the compacting rollers by means of an upwardly movable pressure rod.
  • the force is directed laterally and downwardly by means of inclined traction bars connected to the lever cradles. These bars are pivotally articulated at one end to the upper end of the pressure bar and at their opposite end to a cradle.
  • each compression device preferably has the shape of an inverted T. It is then'preferable to design each compression device as a hydraulic or hydraulicpneumatic piston-cylinder unit, with the cylinder of each press-on device being placed in or at the vertical beam of each T-shaped lateral part of the machine frame, or comprising an integral part of the vertical beam.
  • hydraulic-pneumatic pistoncylinder units it is expedient to provide two separate operating circuits for the operating medium, one of them containing a hydraulic fluid, the other one, air.
  • the pneumatic circuit may then be so designed that it becomes effective only as an overload safety device.
  • tion bars are suspended at their outer end in open
  • the traction bars may be designed at their outer ends as load hooks by which they can be suspended in the lever cradles. They also may be provided with transverse pins extending parallel with the roller shafts, by means of which an engagement into corresponding slots or perforations at the lever cradles can be accomplished, or by any other suitable means which permits rapid disassembly.
  • the lever cradles in turn are so designed that following the loosening of the connection with the traction bars they can be pivoted outwardly into a horizontal position.
  • the design of the bearings of the compacting rollers in such that the disassembly of the compacting rollers in an upward direction is possible once the lever cradles have been pivoted into the horizontal position. This offers the advantage that the usually heavy rollers can be lifted upwardly out of the lever cradles with the aid of cranes or the like.
  • the compression pressure machine according to the invention offers the advantage that a considerable reduction of energy input is possible for generating the forces for the compacting roller compression, so that the pressure-producing components can be less massive when compared with conventional machine design. Moreover, variations in the roller gap is achieved in a strictly axis-symmetrical manner. Axis parallelity for the compacting rollers is made possible with simple hydraulic means. A change of the compacting rollers with the hinged-off cradles can be accomplished by simply unhooking the traction bars from the cradles.
  • the principal components of the compression pressure machine according to the invention are a machine frame ll shaped like an inverted T.
  • a vertical beam 2 forming a hydraulic cylinder comprises part of this frame.
  • Two compacting rollers 5 mounted horizontally and in parallel with each other, are positioned, respec tively, in cradle levers 4. These levers are articulated at their lower ends to the horizontal part of the machine frame l by means of bearings 3.
  • a piston with a pressure bar 9 is guided horizontally in the vertically disposed hydraulic cylinder.
  • Traction bars 6 are articulated in each ease-at their upper ends in bearings 7, these bars being slightly tilted downwardly as shown in FIG. 2. Each bar is suspended at its other free end in jaw-like slots 8 at the upper ends of the cradle levers 4. This positioning in the slots is located above the compacting rollers 5 and outside their longitudinal axes.
  • the two traction bars or traction anchors 6 of equal length combine to form a bendable traction anchor.
  • both open jaw-like slots 8 in relation to each other is reduced by extension of the piston bar 9 in the direction of the arrow it).
  • This extension of the bar which is connected to both traction bars 6 in an articulated manner, causes the compacting rollers 5 to move together due to the pressure resulting from the lever effect imparted by levers 4 as the levers pivot about bearings 3.
  • this distance is increased by retracting the piston bar 9 in the direction of the arrow 11, which positively increases the roller gap.
  • the compression apparatus represented in FIGS. 1 and 2 is preferably provided on both sides of the rollers in the case of larger compression pressure machines.
  • FIG. 3 illustrates the compression pressure machine in the open or partially disassembled condition.
  • both lever cradles 4 are pivotable horizontally toward the outside after the ends of the traction bars 6 are unhooked from slots 8.
  • the compacting rollers 5 are shown separated from the supporting bearings provided in the lever cradles 4.
  • Bearing bowls 12 can be easily separated from the lever cradles in order to lift the compacting rollers 5 upwardly after they have beendisengaged from their drive shafts.
  • the drive mechanisms for compacting rollers 5 as well as other known portions of the construction may be of any conventional type.
  • a compression pressure machine for compacting, pelletizing and briquetting pulverant, fine-grained or structurally voluminous products comprising a machine frame, lever cradles articulated pivotably at one end thereof to the machine frame, a pair of horizontally juxtaposed compacting rollers supported by said lever cradles, and a compression device including means for transmitting force along a vertical central axis located between the ends of the shafts of the compacting rollers, means for reciprocally operating said force transmitting means, a pair of traction bars pivotally connected to the opposite ends of the lever cradles, said force transmitting means being connected to said traction bars whereby application of said force pivots said lever cradles and thereby determines the gap between said compacting rollers and the pressure applied by the rollers.
  • a compression pressure machine according to claim 1, wherein the machine frame comprises a pair of oppositely disposed side members having the shape of an inverted T.
  • a compression pressure machine according to claim 2 wherein said compression device comprises a piston-cylinder unit.
  • a compression pressure machine according to I claim 3 wherein the cylinder of the compression device is located in the vertical beam of each T-shaped machine frame member.
  • a compression pressure machine according to claim l wherein the ends of the traction bars are re movably supported in slots defined by said lever cradles.
  • a compression pressure machine according to claim 5 wherein the ends of the traction bars define hooks readily disengageable from the lever cradles.
  • a compression pressure machine according to claim 6 wherein the lever cradles are pivotable outwardly into a horizontal position when disengaged from the traction bars.
  • a compression pressure machine including bearing members for the compacting rollers, said bearing members being mounted on the lever cradles and being movable upwardly away from the lever cradles when the cradles are in the horizontal v position to thereby permit disassembly of the compacting rollers from the lever cradles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Glanulating (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US00357482A 1972-05-04 1973-05-04 Machine for compacting, pelletizing and/or briquetting Expired - Lifetime US3845708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2221785A DE2221785C2 (de) 1972-05-04 1972-05-04 Walzenpresse zum Kompaktieren, Pelletieren oder Brikettieren

Publications (1)

Publication Number Publication Date
US3845708A true US3845708A (en) 1974-11-05

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US00357482A Expired - Lifetime US3845708A (en) 1972-05-04 1973-05-04 Machine for compacting, pelletizing and/or briquetting

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US (1) US3845708A (enrdf_load_stackoverflow)
JP (1) JPS5748320B2 (enrdf_load_stackoverflow)
DE (1) DE2221785C2 (enrdf_load_stackoverflow)
FR (1) FR2187539B1 (enrdf_load_stackoverflow)
GB (1) GB1415456A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899965A (en) * 1973-02-06 1975-08-19 Friedhelm Koch Roll press
US3970256A (en) * 1974-01-18 1976-07-20 Buhler Ag Grinding mill
US4028035A (en) * 1976-01-27 1977-06-07 K. R. Komarek, Inc. Frameless briquetting machine
US4050803A (en) * 1974-05-28 1977-09-27 Xerox Corporation Quick release mechanism for a backup roll fuser employed in a copier apparatus
US4471531A (en) * 1983-02-16 1984-09-18 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for measuring press roll clearance
US4760789A (en) * 1986-07-10 1988-08-02 Am International, Inc. Adjustable roller system for printing or duplicating machines
US5507223A (en) * 1994-02-04 1996-04-16 Valmet Paper Machinery, Inc. Arrangement for coupling extended-nip rolls
WO2003076172A1 (de) * 2002-03-08 2003-09-18 Alexanderwerk Ag Kompaktierpresse für schüttgüter
US20070277576A1 (en) * 2004-06-16 2007-12-06 Danieli & C. Officine Meccaniche S.P.A. Bar Speed Changing Device
US20100186607A1 (en) * 2007-07-09 2010-07-29 Polysius Ag Roller press with displaceable head elements
US20130025476A1 (en) * 2010-04-20 2013-01-31 Khd Humboldt Wedag Gmbh Machine frame for a roller press
WO2013158027A1 (en) * 2012-04-20 2013-10-24 Metso Minerals (Sweden) Ab Centering rolls
CN115320151A (zh) * 2022-08-04 2022-11-11 北京汽车集团越野车有限公司 一种部件成型装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207195A (ja) * 1989-02-03 1990-08-16 Tokyo Gas Co Ltd セラミックスファンの駆動機構
DE102007059073A1 (de) * 2007-12-07 2009-06-10 Khd Humboldt Wedag Gmbh Rollenpresse mit symmetrischer Walzenzentrierung
DE102015205713A1 (de) * 2015-03-30 2016-10-06 Takraf Gmbh Radialrahmen zur Aufnahme von radialen Mahlkräften

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1295764A (en) * 1918-02-05 1919-02-25 St Louis Briquette Machine Company Briquet-machine.
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
DE1280544B (de) * 1964-08-17 1968-10-17 Werner & Pfleiderer Vorrichtung zum Granulieren plastischen Gutes
US3477268A (en) * 1967-02-03 1969-11-11 Voest Ag Device for shaping metal bars

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE295586C (enrdf_load_stackoverflow) *
DE7130294U (de) * 1972-01-20 Hutt Gmbh Walzdruckmaschine zum Brikettieren, Kompaktleren oder Pelletieren von kornigem Gut
GB135061A (enrdf_load_stackoverflow) * 1900-01-01
FR477223A (fr) * 1915-01-12 1915-10-06 Luigi Sanna Manunta Broyeur à cylindres oscillant sur tourillons d'appui
US1383529A (en) * 1921-01-26 1921-07-05 Conder Charles Markham Roller-mill for crushing materials such as stone or ores
FR563684A (fr) * 1923-03-12 1923-12-11 Perfectionnements apportés dans l'établissement des broyeurs à cylindres
DE644736C (de) * 1935-10-11 1937-05-12 Humboldt Deutzmotoren Akt Ges Walzenbrecher
US3431839A (en) * 1965-10-27 1969-03-11 American Factors Ass Ltd Press for separating liquids from solids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1295764A (en) * 1918-02-05 1919-02-25 St Louis Briquette Machine Company Briquet-machine.
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
DE1280544B (de) * 1964-08-17 1968-10-17 Werner & Pfleiderer Vorrichtung zum Granulieren plastischen Gutes
US3477268A (en) * 1967-02-03 1969-11-11 Voest Ag Device for shaping metal bars

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899965A (en) * 1973-02-06 1975-08-19 Friedhelm Koch Roll press
US3970256A (en) * 1974-01-18 1976-07-20 Buhler Ag Grinding mill
US4050803A (en) * 1974-05-28 1977-09-27 Xerox Corporation Quick release mechanism for a backup roll fuser employed in a copier apparatus
US4028035A (en) * 1976-01-27 1977-06-07 K. R. Komarek, Inc. Frameless briquetting machine
US4471531A (en) * 1983-02-16 1984-09-18 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for measuring press roll clearance
US4760789A (en) * 1986-07-10 1988-08-02 Am International, Inc. Adjustable roller system for printing or duplicating machines
US5507223A (en) * 1994-02-04 1996-04-16 Valmet Paper Machinery, Inc. Arrangement for coupling extended-nip rolls
US7398729B2 (en) 2002-03-08 2008-07-15 Alexanderwerk Ag Compacting press for bulk materials
US20050139095A1 (en) * 2002-03-08 2005-06-30 Axel Eggert Compacting press for bulk materials
WO2003076172A1 (de) * 2002-03-08 2003-09-18 Alexanderwerk Ag Kompaktierpresse für schüttgüter
CN100519163C (zh) * 2002-03-08 2009-07-29 亚历山大沃克工厂股份公司 用于松散材料的压力机
US20070277576A1 (en) * 2004-06-16 2007-12-06 Danieli & C. Officine Meccaniche S.P.A. Bar Speed Changing Device
US7559220B2 (en) * 2004-06-16 2009-07-14 Danieli & C. Officine Meccanicite S.p.A. Bar speed changing device
CN1964799B (zh) * 2004-06-16 2010-05-12 达涅利机械工业有限公司 杆件速度变换装置和方法
US20100186607A1 (en) * 2007-07-09 2010-07-29 Polysius Ag Roller press with displaceable head elements
US8297183B2 (en) * 2007-07-09 2012-10-30 Thyssenkrupp Polysius Aktiengesellschaft Roller press with displaceable head elements
US20130025476A1 (en) * 2010-04-20 2013-01-31 Khd Humboldt Wedag Gmbh Machine frame for a roller press
US9289959B2 (en) * 2010-04-20 2016-03-22 Khd Humboldt Wedag Gmbh Machine frame for a roller press
WO2013158027A1 (en) * 2012-04-20 2013-10-24 Metso Minerals (Sweden) Ab Centering rolls
US8662431B2 (en) 2012-04-20 2014-03-04 Metso Minerals (Sweden) Ab Centering rolls
CN115320151A (zh) * 2022-08-04 2022-11-11 北京汽车集团越野车有限公司 一种部件成型装置

Also Published As

Publication number Publication date
DE2221785C2 (de) 1984-06-14
JPS5748320B2 (enrdf_load_stackoverflow) 1982-10-15
DE2221785A1 (de) 1973-11-15
JPS49100663A (enrdf_load_stackoverflow) 1974-09-24
GB1415456A (en) 1975-11-26
FR2187539B1 (enrdf_load_stackoverflow) 1978-10-20
FR2187539A1 (enrdf_load_stackoverflow) 1974-01-18

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