US3635637A - Segmented roller briquette press with cooled mounting rings - Google Patents
Segmented roller briquette press with cooled mounting rings Download PDFInfo
- Publication number
- US3635637A US3635637A US42695A US3635637DA US3635637A US 3635637 A US3635637 A US 3635637A US 42695 A US42695 A US 42695A US 3635637D A US3635637D A US 3635637DA US 3635637 A US3635637 A US 3635637A
- Authority
- US
- United States
- Prior art keywords
- segments
- roller
- briquette press
- set forth
- shrunk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
- B30B11/165—Roll constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
Definitions
- ABSTRACT An improved roller-type briquette press for the hot pressing of coal, ores and similar substances, wherein a cylindrical roller core carries a plurality of segments, equipped with molds and forming together an annulus, wherein the improvement comprises that the segments may be easily and reliably mounted on the valve core even at the high temperatures encountered during the pressing by using cooled, shrunk fit mounting rings.
- the invention relates, as indicated, to a roller-type briquette press for the hot pressing of coal, ores and similar substances, in which a cylindrical roller core carries a plurality of segments equipped with molding recesses and forming together an annulus.
- a known roller briquette press of this type described in British Pat. No. 567,069, and not intended particularly for hot pressing, the mounting means are spring-biased pins or spring clips. Thrust forces are here transmitted by wedges or bolts.
- fixing means of this kind are unsuitable for the hot pressing of coal which takes place at temperatures about 400 C. and for the hot pressing of cores where temperatures of up to 900 C. are reached.
- roller briquette presses in which the roller core has a polygonal cross section and a segment is fitted on each face of the polygon
- U.S. Pat. No. 1,357,141 German published specifications Nos. 1,037,348 and 1,064,857
- the faces of the polygon have grooves into which engage wedged keys arranged on the segments.
- the segments are connected tothe roller core by means of screws, and in the German published specifications Nos. 1,037,348 and 1,064,857, the segments have lugs at their ends through which pass the screws.
- screw connections are not reliable at the temperatures occurring during hot pressing.
- the polygonal cross sections require expensive machining operations of the valve core and possibly also of the base surfaces of the segments.
- the segments are formed by cutting a turned solid annulus.
- a substantially uniform loading of the bearing is achieved in that the cuts pass through the mold recesses, as known in the art.
- the cutting of the mold recesses in roller presses with segments, is known from US. Pat. No. l,357,141.
- the cuts may be executed, as known per se, either axially parallel or at an acute angle to the axis.
- the coolant channel is turned into the outer periphery of the shrunk ring and is covered by another ring fixed by welding.
- the coolant connections may be formed by bores in the shrunk ring.
- stop flanges are provided on the valve core for the axial positioning of the segments thereon.
- stop elements are preferably provided between the segments and the valve core acting in the direction of the circumference. These elements may have only small cross seetions since, as mentioned above, the tangential forces are transmitted by friction and the circumfcrentially effective stop elements are necessary merely for aligning the segments.
- FIG. 1 is a side elevation of a roller-type briquette press according to the invention
- FIG. 2 is a cross section along the line llll in FIG. I;
- FIG. 3 is a cross section of a press rolller according to the invention, taken along the line III-Ill in FIG. 2;
- FIGS. 4 and 5 show developments of the segments with axially parallel dividing lines in FIG. 4 and dividing lines forming an angle with the axis in FIG. 5.
- FIG. I shows a conventional roller briquette press with a frame 2 having an opening 4 on both sides in which two bearing blocks 6, 8 are displaceably mounted; a distance member 10 is located between the bearing blocks and the bearing block 8 is supported by hydraulic cylinders enabling it to deflect laterally when a certain pressing pressure is exceeded.
- the shafts l8 and 20 of the rollers 14 and 16 are mounted in the said bearing blocks.
- the material to be pressed is supplied through a feed hopper 22.
- roller core 24 and the roller shaft 18 are made in one piece.
- the shaft I8 is mounted via roller bearings 26 in the bearing blocks 8; a drive pinion 28 is mounted on one end of the shaft 18, as known in the art.
- the circumference of the roller core 24 is clyindrical, A plurality of segments 30 are arranged on the valve core, the inner circumference of which segments is cylindrical and corresponds to the cylinder of the valve core so that they rest completely on the cylindrical core.
- the projecting; center part of the segments carries on its outer circumference the mold recesses 32. Both sides of the segments are provided with extensions or projections 34. Shrunk rings 36 are fitted to the projections 34 and press the segments with the necessary force on to the core.
- the outer periphery of the shrunk rings is provided with a turned coolant channel 38 which is covered and closed by an annulus 40 mounted thereon by welding.
- the coolant channel 38 may also be formed by a ring with a flat U- shaped profile.
- a coolant conduit is connected to the coolant channel 38 through an axial bore 42 and a radial bore 44 in the shrunk ring.
- Always two bores are arranged adjacently, one serving as inlet and the other as outlet. Between these bores, the coolant channel 38 is closed by a partition.
- the axial bore 42 communicates through a pipe 46 with a bore leading into the interior of the roller core; this bore leads to an axially parallel bore 50, terminating in a collecting head 52 at the end of the shaft I8.
- the bore 48 for the supply of the coolant, and a bore 54 for the reflux, leading into an axially parallel reflux bore 56, shown in FIG. 2 underneath the inlet bore 50, are parallel.
- the collecting head 52 is connected to a known rotary connecter 58.
- valve core 24 has on both sides of the mounting face for the segments flanges 60, serving to locate the segments 30 in the lateral direction.
- wedges 62 acting in the direction of the circumference.
- these wedges do not serve as force-transmitting elements, but as fixing means for the individual segments during the assembly.
- the individual segments can be fitted to the valve core during the assembly and retained by a tensioning ele ment. After this preassembly the heated shrunk rings 36 may be fitted.
- the segments 30 may be produced by turning.
- a solid ring is made preferably after the manner of a tire, into which the mold recesses are sunk. The comparatively small keyways are then machined into the inner periphery of the ring. The ring prepared in this manner is then divided into the individual segments.
- the cutting is effected in that manner that the cutting lines cut, as shown in FIGS. 4 and 5, through the mold recesses because in this manner irregularities in the running of the rollers during the pressing are reduced to a minimum.
- the cutting lines may be parallel to the axis or they may form an acute angle with the axis, as shown in FIG.
- the gaps necessarily formed during the cutting of the annular tire into segments between the individual segments, enable the segments to expand at the working temperatures and to adapt themselves to the working temperature without undue stresses.
- the cooling of the shrunk rings 36 ensures that their temperature will be lower than that of the segments; this ensures the firm seating of the segments on the roller core under all operational conditions and the pressing at working temperature becomes even better in view of the fact that the whole segment is heated.
- the invention provides a solution for the problems occurring with all known segment mountings in which the retaining effect of the mounting is reduced when the heat rises.
- An improved roller-type briquette press for the hot pressing of coal, ores and similar materials including a plurality of segments equipped with mold recesses and forming together a full annulus mounted on a cylindrical valve core, wherein the improvement comprises that the segments 30 are provided with lateral projections 34 and the mounting means are rings 36 shrunk on to the said projections, said shrunk rings equipped with an annular coolant channel 38 communicating with coolant channels 48, 50, 54, 56 disposed in said core for supplying and removing the coolant.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Glanulating (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1928176A DE1928176C3 (de) | 1969-06-03 | 1969-06-03 | Walzenbrikettpresse zum Heißverpressen von Kohle, Erzen und ähnlichen Stoffen |
Publications (1)
Publication Number | Publication Date |
---|---|
US3635637A true US3635637A (en) | 1972-01-18 |
Family
ID=5735929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US42695A Expired - Lifetime US3635637A (en) | 1969-06-03 | 1970-06-02 | Segmented roller briquette press with cooled mounting rings |
Country Status (5)
Country | Link |
---|---|
US (1) | US3635637A (de) |
JP (1) | JPS4823522B1 (de) |
DE (1) | DE1928176C3 (de) |
FR (1) | FR2049842A5 (de) |
SE (1) | SE346248B (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907486A (en) * | 1973-12-07 | 1975-09-23 | United States Steel Corp | Means for internally cooling briquetting machine rolls and segments |
US4337023A (en) * | 1980-05-10 | 1982-06-29 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roller press for compacting and briquetting of bulk material |
US4925382A (en) * | 1988-01-26 | 1990-05-15 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roller press for compacting fine-grained salts into sheets |
US5155909A (en) * | 1991-06-13 | 1992-10-20 | Rock Of Ages Corporation | Press roll apparatus and method of construction |
US5382149A (en) * | 1993-03-01 | 1995-01-17 | Sunsweet Growers, Inc. | Method and apparatus for producing molded food pieces |
US6169059B1 (en) | 1998-11-19 | 2001-01-02 | Superior Graphite Co. | High-temperature, water-based lubricant and process for making the same |
US20100021596A1 (en) * | 2004-07-28 | 2010-01-28 | Mars, Incorporated | Apparatus and process for preparing confectionery having an inclusion therein using forming rolls and a forming pin |
US8066474B1 (en) * | 2006-06-16 | 2011-11-29 | Jansen's Aircraft Systems Controls, Inc. | Variable guide vane actuator |
CN103537230A (zh) * | 2013-11-04 | 2014-01-29 | 江苏良友农牧机械有限公司 | 一种煤屑制粒机 |
USD838780S1 (en) | 2016-06-13 | 2019-01-22 | Bedford Industries, Inc. | Elastic loop |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2536815C3 (de) * | 1975-08-19 | 1981-05-21 | Maschinenfabrik Köppern GmbH & Co KG, 4320 Hattingen | Walzenpresse zum Heißkompaktieren und Heißbrikettieren von Schüttgütern |
GB2537229B (en) * | 2013-08-20 | 2018-09-26 | Sintokogio Ltd | Briquette machine |
WO2023007567A1 (ja) * | 2021-07-27 | 2023-02-02 | 株式会社日立ハイテク | マルチキャピラリ電気泳動装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787956A (en) * | 1953-07-28 | 1957-04-09 | Mosstype Roller Co Inc | Printing plate cylinder and method of mounting or demounting same from a mandrel |
US2958903A (en) * | 1958-04-24 | 1960-11-08 | Kloeckner Humboldt Deutz Ag | Briquetting roller press |
US2958902A (en) * | 1958-02-21 | 1960-11-08 | Kloeckner Humboldt Deutz Ag | Roller press for the briquetting of ore, coal or similar materials |
-
1969
- 1969-06-03 DE DE1928176A patent/DE1928176C3/de not_active Expired
-
1970
- 1970-06-02 US US42695A patent/US3635637A/en not_active Expired - Lifetime
- 1970-06-02 JP JP45047515A patent/JPS4823522B1/ja active Pending
- 1970-06-02 SE SE7637/70A patent/SE346248B/xx unknown
- 1970-06-03 FR FR7020304A patent/FR2049842A5/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787956A (en) * | 1953-07-28 | 1957-04-09 | Mosstype Roller Co Inc | Printing plate cylinder and method of mounting or demounting same from a mandrel |
US2958902A (en) * | 1958-02-21 | 1960-11-08 | Kloeckner Humboldt Deutz Ag | Roller press for the briquetting of ore, coal or similar materials |
US2958903A (en) * | 1958-04-24 | 1960-11-08 | Kloeckner Humboldt Deutz Ag | Briquetting roller press |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907486A (en) * | 1973-12-07 | 1975-09-23 | United States Steel Corp | Means for internally cooling briquetting machine rolls and segments |
US4337023A (en) * | 1980-05-10 | 1982-06-29 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roller press for compacting and briquetting of bulk material |
US4925382A (en) * | 1988-01-26 | 1990-05-15 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roller press for compacting fine-grained salts into sheets |
US5155909A (en) * | 1991-06-13 | 1992-10-20 | Rock Of Ages Corporation | Press roll apparatus and method of construction |
US5382149A (en) * | 1993-03-01 | 1995-01-17 | Sunsweet Growers, Inc. | Method and apparatus for producing molded food pieces |
US6350722B2 (en) | 1998-11-19 | 2002-02-26 | Superior Graphite Company | High-temperature, water-based lubricant and process for making the same |
US6169059B1 (en) | 1998-11-19 | 2001-01-02 | Superior Graphite Co. | High-temperature, water-based lubricant and process for making the same |
US20100021596A1 (en) * | 2004-07-28 | 2010-01-28 | Mars, Incorporated | Apparatus and process for preparing confectionery having an inclusion therein using forming rolls and a forming pin |
US8084069B2 (en) * | 2004-07-28 | 2011-12-27 | Mars, Incorporated | Apparatus and process for preparing confectionery having an inclusion therein using forming rolls and a forming pin |
US9078456B2 (en) | 2004-07-28 | 2015-07-14 | Mars, Incorporated | Confectionery having a void formed by a forming pin |
US9420805B2 (en) | 2004-07-28 | 2016-08-23 | Mars, Incorporated | Confectionery having a formed hollow section |
US8066474B1 (en) * | 2006-06-16 | 2011-11-29 | Jansen's Aircraft Systems Controls, Inc. | Variable guide vane actuator |
US8226359B1 (en) | 2006-06-16 | 2012-07-24 | Jansen's Aircraft Systems Controls, Inc. | Variable guide vane actuator with thermal management |
CN103537230A (zh) * | 2013-11-04 | 2014-01-29 | 江苏良友农牧机械有限公司 | 一种煤屑制粒机 |
USD838780S1 (en) | 2016-06-13 | 2019-01-22 | Bedford Industries, Inc. | Elastic loop |
Also Published As
Publication number | Publication date |
---|---|
JPS4823522B1 (de) | 1973-07-14 |
DE1928176A1 (de) | 1970-12-17 |
DE1928176B2 (de) | 1973-10-25 |
FR2049842A5 (de) | 1971-03-26 |
SE346248B (de) | 1972-07-03 |
DE1928176C3 (de) | 1974-05-16 |
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