DK171912B1 - Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear - Google Patents
Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear Download PDFInfo
- Publication number
- DK171912B1 DK171912B1 DK060195A DK60195A DK171912B1 DK 171912 B1 DK171912 B1 DK 171912B1 DK 060195 A DK060195 A DK 060195A DK 60195 A DK60195 A DK 60195A DK 171912 B1 DK171912 B1 DK 171912B1
- Authority
- DK
- Denmark
- Prior art keywords
- grinding
- wear
- rolling mill
- mill according
- roller
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/40—Detachers, e.g. scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Disintegrating Or Milling (AREA)
Description
DK 171912 B1DK 171912 B1
Den foreliggende opfindelse angår en valsemølle til formaling af stykformet materiale, hvilken valsemølle omfatter mindst en malevalse, der samvirker med mindst et yderligere malelegeme, så som et målebord, en malering 5 eller en malevalse.The present invention relates to a rolling mill for milling piece-shaped material, the rolling mill comprising at least one grinding roller cooperating with at least one additional grinding body, such as a measuring table, grinding 5 or grinding roller.
Valsemøller af ovennævnte art er velkendte. Således kendes en vertikalmølle fra f.eks. DK patent nr. 150818, en ringvalsemølle fra f.eks. DK patentansøgning nr. 748/93 og 10 en valsepresse fra f.eks. international patentansøgning nr.Rolling mills of the above kind are well known. Thus, a vertical mill from e.g. DK Patent No. 150818, a ring roller mill from e.g. DK patent application No. 748/93 and 10 a roll press from e.g. international patent application no.
W0 92/00141.W0 92/00141.
Et problem, der er fælles for disse valsemølletyper, er, at malelegemernes overflader ikke slides ensartet over deres 15 bredde. Under drift af en valsepresse har det således vist sig, at valsernes midterområder slides væsentligt hurtigere end valsernes randområder, således at valseoverfladerne får et truglignende tværprofil. Dette er af driftsmæssige grunde uønsket, og nødvendiggør i praksis, at valseoverfla-20 dernes høje områder med passende mellemrum afslibes, afdrejes, affræses eller udskiftes. Tilsvarende uønskede slidprofiler kendes også ved de to andre nævnte valsemølletyper .One problem common to these types of drill mills is that the surfaces of the grinding bodies do not wear uniformly over their width. Thus, during operation of a roller press, it has been found that the central areas of the rollers wear out significantly faster than the peripheral regions of the rollers, so that the roller surfaces have a trough-like transverse profile. This is undesirable for operational reasons, and in practice necessitates the high areas of the roller surfaces at appropriate intervals being abraded, stripped, milled or replaced. Similarly undesirable wear profiles are also known in the other two mentioned mill types.
25 I EP patentskrift nr. 0 383 004 beskrives en valsepresse, hvor ovennævnte problem med uens slid er forsøgt løst ved, at de områder af valseoverfladerne, der udsættes for mindst slid, er udformet i et mindre slidfast materiale end de resterende områder af valseoverfladerne. Herved skulle der 30 opnåes et mere ensartet slidprofil.25 EP Patent No. 0 383 004 discloses a roller press in which the above problem of uneven wear is attempted to be solved by the areas of the roller surfaces subjected to least wear are formed in a less wear resistant material than the remaining areas of the roller surfaces. In this way, a more uniform wear profile was to be obtained.
Det aktuelle slid, som maleoverfladerne udsættes for under drift, afhænger af forskellige driftsparametre, egenskaberne af materialet, der skal formales, med mere. Derfor vil 35 det i praksis være meget vanskeligt for maskinfabrikanten at vælge materialer til de forskellige områder af malelegemernes overflader, så nævnte problem helt undgåes. Denne 2 DK 171912 B1 kendte løsning vil derfor i bedste fald kun forlænge valsepressens driftstid mellem to vedligeholdelsesstop.The actual wear to which the paint surfaces are subjected during operation depends on various operating parameters, the properties of the material to be ground, and more. Therefore, in practice, it will be very difficult for the machine manufacturer to choose materials for the different areas of the paint body surfaces so that this problem is completely avoided. This 2 DK 171912 B1 known solution will therefore only at best extend the running time of the roller press between two maintenance stops.
Formålet med den foreliggende opfindelse er at anvise en 5 valsemølle, hvor ovennævnte problem er elimineret.The object of the present invention is to provide a rolling mill in which the above problem is eliminated.
Dette formål opnåes ifølge opfindelsen ved en valsemølle af den i indledningen angivne art, og som er kendetegnet ved, at den omfatter organer, der sørger for en løbende afslib-10 ning af i det mindste de områder af malelegemernes overflader, der udsættes for mindst slid ved formalingen.This object is achieved according to the invention by means of a rolling mill of the kind stated in the preamble, characterized in that it comprises means which provide a continuous grinding of at least the areas of the surface of the grinding bodies subjected to least wear and tear. during grinding.
Herved opnåes, at malelegemernes overflader slides mere ensartet over hele deres bredde, således at uønskede 15 slidprofiler undgåes og malelegemernes effektive levetid øges.This ensures that the surfaces of the paint bodies are worn more uniformly throughout their width, so that unwanted wear profiles are avoided and the effective life of the paint bodies is increased.
Yderligere træk ved opfindelsen er angivet i kravene 2-8.Further features of the invention are set forth in claims 2-8.
20 Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, der er skematisk, og hvorThe invention will now be explained in more detail with reference to the drawings, which are schematic and where
Fig. 1 viser et horisontalt snitbillede af en første udførelsesform for en valsepresse set fra oven, der omfatter 25 afslibningsorganer ifølge opfindelsen,FIG. 1 shows a horizontal sectional view of a first embodiment of a roller press seen from above, comprising 25 grinding means according to the invention,
Fig. 2 viser i snit valsepressen vist i Fig. 1 set fra siden, 30 Fig. 3 viser et udsnit af en anden udførelsesform for en valsepresse set fra siden, der omfatter afslibningsorganer ifølge opfindelsen,FIG. 2 is a sectional view of the roller press shown in FIG. 1, side view, FIG. 3 is a side elevational view of another embodiment of a rolling press comprising grinding means according to the invention;
Fig. 4 viser et horisontalt snitbillede af en vertikalmølle 35 set fra oven, der omfatter afslibningsorganer ifølge opfindelsen, og DK 171912 B1 3FIG. 4 shows a horizontal sectional view of a vertical mill 35 seen from above comprising abrasive means according to the invention, and DK 171912 B1 3
Fig. 5 viser i snit en ringvalsemølle set fra siden, der omfatter afslibningsorganer ifølge opfindelsen.FIG. 5 is a sectional side view of an annular roller mill comprising grinding means according to the invention.
I Fig. 1 og 2 ses en valsepresse omfattende to i modsat 5 retning roterende valser 1 og 3, der hver er monteret i ikke viste lejer. Mindst den ene af valserne 1, 3 kan være monteret radialt og horisontalt forskydeligt, således at spaltevidden mellem valserne kan justeres. Valserne 1, 3 drejer om hver sin akse i den retning, der er angivet ved 10 pilene. Under drift tilføres materialet, der skal formales, via en skakt 5 til spalten mellem valserne 1, 3, hvorved materialet eventuelt under dannelse af en malepude trækkes gennem spalten og formales.In FIG. 1 and 2 there is seen a roller press comprising two rotating rollers 1 and 3 in opposite directions, each mounted in bearings not shown. At least one of the rollers 1, 3 may be mounted radially and horizontally displaceable so that the gap width between the rollers can be adjusted. The rollers 1, 3 rotate about their axis in the direction indicated by the 10 arrows. In operation, the material to be milled is supplied via a shaft 5 to the gap between rollers 1, 3, whereby the material, optionally during the formation of a grinding pad, is drawn through the slot and ground.
15 Ved længere tids drift af en sådan valsepresse har det vist at valseoverfladernes midterområde, der i Fig. 1 er angivet ved A, slides hurtigere end randområderne, der er angivet ved B.15 For a longer period of operation of such a roller press, it has been shown that the central region of the roller surfaces, which in FIG. 1 is indicated by A, wears off faster than the peripheral areas indicated by B.
20 For at imødekomme de problemer et sådan slidmønster kan medføre, foreslåes det ifølge opfindelsen at anbringe slidklodser 7, der slæber på de to valsers overflader på en sådan måde, at de sørger for en løbende afslibning af de af valseoverfladernes områder, der udsættes for mindst slid 25 ved formalingen. Valsepressen vist i Fig. 1 og 2 omfatter i forbindelse med hver valse to slidklodser 7, der er monteret i en rammekonstruktion 9, som er bevægeligt hængslet til møllens maskineramme 11. 1 Fig. 2 ses valsepressen endvidere at være tilvejebragt med fjederorganer 13 30 til at presse slidklodserne mod valseoverfladerne. De viste slidklodser 7 er tilvejebragt ved valsernes randområder B og med en bredde, der svarer til bredden heraf. Alternativt kan valsepressen i forbindelse med hver valse omfatte en slidklods 7, der strækker sig over hele valsens bredde.In order to address the problems that such a wear pattern may cause, it is proposed according to the invention to apply wear pads 7 which tug on the surfaces of the two rollers in such a way as to provide a continuous abrasion of the areas of the roller surfaces exposed to at least one wear 25 during grinding. The roller press shown in FIG. 1 and 2, in connection with each roller, comprise two wear blocks 7 mounted in a frame structure 9 movably hinged to the mill frame machine 11. 1 FIG. 2, the roller press is also seen to be provided with spring means 13 30 for pressing the wear pads against the roller surfaces. The wear blocks 7 shown are provided at the edge regions B of the rollers and with a width corresponding to the width thereof. Alternatively, the roller press associated with each roller may comprise a wear pad 7 extending over the entire width of the roller.
I Fig. 3 ses en valsepresse, hvor hver slidklods 7 via et fjederorgan 15 er monteret direkte i maskinerammen 11.In FIG. 3, a roller press is seen, where each wear block 7 is mounted directly in the frame of the machine 11 via a spring means 15.
35 4 DK 171912 B1 I Fig. 4 ses i horisontalt snit en vertikalmølle omfattende et roterende målebord 21 og tre derpå rullende malevalser 23. Til udligning af det ujævne slidprofil, som under denne mølles drift vil opstå på såvel målebordet 21's maleover-5 flade som på valserne 23' s maleoverflader, er møllen på tilsvarende måde som ved valsepressen omtalt ovenfor tilvejebragt med slidklodser 7. I Fig. 4 strækker de viste slidklodser 7 sig over maleoverfladernes fulde bredde, men alternativt kan de være udformet til kun at dække de af 10 maleoverfladernes områder, der udsættes for mindst slid. Slidklodserne 7 tænkes monteret i en rammekonstruktion, ikke vist, der drejeligt og eventuelt fjederbelastet er hængslet til møllens hus eller maskinramme 25.35 4 DK 171912 B1 In FIG. 4 is a horizontal sectional view of a vertical mill comprising a rotary measuring table 21 and three rolling rollers 23 rolling thereon. In order to compensate for the uneven wear profile which will occur during the operation of this mill on both the painting surface of the measuring table 21 as well as on the painting surfaces of the rollers 23, the mill in a manner similar to that of the roller press described above provided with wear blocks 7. In FIG. 4, the wear blocks 7 shown extend over the full width of the paint surfaces, but alternatively they may be designed to cover only the areas of the 10 paint surfaces subjected to least wear. The wear blocks 7 are thought to be mounted in a frame structure, not shown, which is pivotally and possibly spring-loaded hinged to the mill housing or machine frame 25.
15 I Fig. 5 ses fra siden et snit gennem en ringvalsemølle, der omfatter en malering 31 og en malevalse 33. Til udligning af det ujævne slidprofil, som under denne mølles drift vil opstå på såvel maleringen 31's maleoverflade som på valsen 33's maleoverflade, er møllen på tilsvarende måde 20 som ved de tidligere omtalte møller tilvejebragt med slidklodser 7. Slidklodserne 7 kan strække sig over maleoverfladernes fulde bredde, men kan alternativt være udformet til kun at dække de af maleoverfladernes områder, der udsættes for mindst slid. Slidklodserne 7 tænkes 25 monteret i en rammekonstruktion, ikke vist, der drejeligt eller forskydeligt og eventuelt fjederbelastet er hængslet til møllens hus eller maskinramme, ikke vist.In FIG. 5 is a side view of a section through a ring roller mill comprising a paint 31 and a paint roller 33. To compensate for the uneven wear profile which will occur during the operation of this mill on both the paint surface of the paint 31 and on the paint surface of the roller 33, the mill is similarly 20 as with the previously mentioned mills provided with wear pads 7. The wear pads 7 may extend over the full width of the paint surfaces, but may alternatively be designed to cover only those areas of the paint surfaces subjected to least wear. The wear pads 7 are thought to be mounted in a frame structure, not shown, which is rotatable or slidable and possibly spring loaded to the mill housing or machine frame, not shown.
Ved alle udførelsesformerne vist i figurerne 1 til 5 tænkes 30 slidklodserne monteret på en sådan måde, at kan vendes og/eller drejes efterhånden som de slides.In all the embodiments shown in Figures 1 to 5, the wear pads are thought to be mounted in such a way that they can be turned and / or turned as they wear.
Slidklodserne kan fremstilles i mange forskellige materialer, men tænkes fortrinsvis fremstillet i granitsten, 35 densit, smeltebasalt eller et tilsvarende højabrasivt materiale.The abrasive blocks can be made in many different materials, but are preferably made of granite stone, densite, melt basalt or a similar high abrasive material.
Claims (8)
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK060195A DK171912B1 (en) | 1995-05-26 | 1995-05-26 | Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear |
| CA002215293A CA2215293A1 (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous grinding-off of those grinding surfaces that are subjected to least wear |
| PCT/DK1996/000174 WO1996037306A1 (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous grinding-off of those grinding surfaces that are subjected to least wear |
| CN96194207A CN1185758A (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous grinding-off of those grinding surfaces that are subjected to least wear |
| JP8535278A JPH11505761A (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous scraping means for grinding surfaces with minimal wear |
| AU56844/96A AU5684496A (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous grinding-off of those grinding surfaces that are subjected to least wear |
| CZ973749A CZ374997A3 (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous abrasion of the grinding surfaces being exposed to less abrasion |
| BR9609127A BR9609127A (en) | 1995-05-26 | 1996-04-19 | Roller mill with continuous scraping of grinding surfaces that are subject to less wear |
| PL96322684A PL322684A1 (en) | 1995-05-26 | 1996-04-19 | Roller mill |
| KR1019970706055A KR19980702649A (en) | 1995-05-26 | 1996-04-19 | Roller mill for continuously grinding the grinding surface with minimal wear |
| ZA964133A ZA964133B (en) | 1995-05-26 | 1996-05-23 | Roller mill |
| MXPA/A/1997/009007A MXPA97009007A (en) | 1995-05-26 | 1997-11-21 | Roller mill with continuous milling of those ground surfaces that are submitted to less desga |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK060195A DK171912B1 (en) | 1995-05-26 | 1995-05-26 | Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear |
| DK60195 | 1995-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK60195A DK60195A (en) | 1996-11-27 |
| DK171912B1 true DK171912B1 (en) | 1997-08-11 |
Family
ID=8095423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK060195A DK171912B1 (en) | 1995-05-26 | 1995-05-26 | Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPH11505761A (en) |
| KR (1) | KR19980702649A (en) |
| CN (1) | CN1185758A (en) |
| AU (1) | AU5684496A (en) |
| BR (1) | BR9609127A (en) |
| CA (1) | CA2215293A1 (en) |
| CZ (1) | CZ374997A3 (en) |
| DK (1) | DK171912B1 (en) |
| PL (1) | PL322684A1 (en) |
| WO (1) | WO1996037306A1 (en) |
| ZA (1) | ZA964133B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1341599C (en) * | 1984-12-03 | 2010-03-02 | Stanley Lustig | Irradiated multilayer film for primal meat packaging |
| KR100393675B1 (en) * | 1998-07-31 | 2003-10-10 | 주식회사 포스코 | Apparatus of crushing debris of coating in a lime burning system |
| DE102017208014A1 (en) | 2017-05-11 | 2018-11-15 | Thyssenkrupp Ag | Roll mill and method for operating a roll mill |
| US12076729B2 (en) | 2021-10-22 | 2024-09-03 | Metso Outotec USA Inc. | Roller crusher and method for arrangement thereof |
| US12097506B2 (en) | 2021-10-22 | 2024-09-24 | Metso Outotec USA Inc. | Roller crusher and method for operating thereof |
| US11925942B2 (en) | 2021-10-22 | 2024-03-12 | Metso Outotec USA Inc. | Roller crusher and method for operating thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US956878A (en) * | 1907-12-12 | 1910-05-03 | Power And Mining Machinery Company | Crushing-rolls. |
| DE902572C (en) * | 1951-10-04 | 1954-01-25 | Miag Vertriebs Gmbh | Device for pressing scrapers on rollers |
| US2853245A (en) * | 1955-04-27 | 1958-09-23 | Jacobson Abner | Mill roll scraper |
| US3398253A (en) * | 1965-10-19 | 1968-08-20 | F Jos Lamb Company Inc | Grinding machine with electric discharge machining mechanism for reshaping crush roll |
-
1995
- 1995-05-26 DK DK060195A patent/DK171912B1/en not_active IP Right Cessation
-
1996
- 1996-04-19 CA CA002215293A patent/CA2215293A1/en not_active Abandoned
- 1996-04-19 CN CN96194207A patent/CN1185758A/en active Pending
- 1996-04-19 WO PCT/DK1996/000174 patent/WO1996037306A1/en not_active Application Discontinuation
- 1996-04-19 KR KR1019970706055A patent/KR19980702649A/en not_active Application Discontinuation
- 1996-04-19 CZ CZ973749A patent/CZ374997A3/en unknown
- 1996-04-19 PL PL96322684A patent/PL322684A1/en unknown
- 1996-04-19 JP JP8535278A patent/JPH11505761A/en active Pending
- 1996-04-19 BR BR9609127A patent/BR9609127A/en not_active Application Discontinuation
- 1996-04-19 AU AU56844/96A patent/AU5684496A/en not_active Abandoned
- 1996-05-23 ZA ZA964133A patent/ZA964133B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996037306A1 (en) | 1996-11-28 |
| AU5684496A (en) | 1996-12-11 |
| CN1185758A (en) | 1998-06-24 |
| CZ374997A3 (en) | 1998-03-18 |
| DK60195A (en) | 1996-11-27 |
| ZA964133B (en) | 1996-11-27 |
| KR19980702649A (en) | 1998-08-05 |
| MX9709007A (en) | 1998-03-31 |
| JPH11505761A (en) | 1999-05-25 |
| BR9609127A (en) | 1999-06-08 |
| CA2215293A1 (en) | 1996-11-28 |
| PL322684A1 (en) | 1998-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |