EP0801985B1 - Hockdruck-Walzenpresse zur Druckzerkleinerung von körnigem Gutmaterial - Google Patents
Hockdruck-Walzenpresse zur Druckzerkleinerung von körnigem Gutmaterial Download PDFInfo
- Publication number
- EP0801985B1 EP0801985B1 EP97104558A EP97104558A EP0801985B1 EP 0801985 B1 EP0801985 B1 EP 0801985B1 EP 97104558 A EP97104558 A EP 97104558A EP 97104558 A EP97104558 A EP 97104558A EP 0801985 B1 EP0801985 B1 EP 0801985B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller press
- high pressure
- pressure roller
- ring
- press according
- 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
- 239000008187 granular material Substances 0.000 title claims 2
- 238000003801 milling Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims description 106
- 238000000605 extraction Methods 0.000 claims 5
- 210000003127 knee Anatomy 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000011257 shell material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 14
- 239000004568 cement Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/002—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with rotary cutting or beating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/30—Passing gas through crushing or disintegrating zone the applied gas acting to effect material separation
Definitions
- the invention relates to a high-pressure roller press for pressure reduction granular good material, with two counter-driven and rollers separated from each other by a nip, which are surrounded by a rotatably mounted, rotatable ring are.
- a lowering of the pressing pressure used in the material bed comminution in the roller gap of the roller press has high grinding cycle rates of the roller press or large quantities circulating, particularly in the so-called finished and partially finished grinding, in which the material bed roller press works with a classifier or a classifying device in the circuit Schülpen material result, associated with a considerable effort to transport the press discharge material and the classifier size from the roller press discharge via the classifier to the press feed shaft or directly to the press feed shaft z.
- a screen grinding plant is known in which two grinding rollers of a rotatable perforated one, with lifting blades inside provided drum are surrounded. While the ground and sieved fine material through the perforations of the sieve drum coming out, the large fragments of the regrind or the oversize of the shredded feed material by means of in the Sieve drum arranged lifting blades back to the grinding rollers transported for further crushing.
- the well-known screen grinding plant with the rotating sieve would not be suitable for grinding tasks with large throughputs such as B. the grinding from cement clinker to cement for the cement industry.
- Screen fabrics would also be used for the purpose of deagglomeration of pressed slugs of one mentioned at the beginning energy-saving material bed crushing high pressure roller press, wear out quickly because they are pressed by the high-pressure roller press
- Good material scoops are made of good grain with comparatively sharp-edged grain surface composed, which the Wear of a rotating classifying screen would greatly favor the wear problem with increasing pressure of the Roll press rises.
- the invention has for its object a large throughput coping high-pressure high-pressure roller press to create where the problem of large material recirculation or higher circulation rates, also caused by reduced roller pressures, with the use of low mechanical Effort is resolved, and in the case of the good material circulation and depending on If necessary, the viewing process is integrated in a compact unit are.
- a housing consisting of two fixed, d. H. non-rotating side end walls, between which one rotatably mounted and rotatable by a rotary drive Material conveyor ring is arranged for an internal material cycle.
- This rotatably mounted material conveyor ring of the housing also rotates e.g. B. about 40 to 80% of the critical speed, d. H. the ring takes that Press discharge material (Schülpen material) depending on the design of lifting elements in the conveyor ring until before and after the upper vertex of the Ring and drops this good material from above into the nip, which creates the internal material cycle.
- Bucket elevators or other space-consuming funding bodies for transporting the Press discharge material for the press infeed is eliminated.
- With little mechanical effort multiple internal material cycle with repeated material bed stress of the good material reached.
- Also relatively high good circulation loads, caused by reduced roller pressures with consideration on the thereby increased stability of the rollers are according to the invention easy to cope with.
- the entry takes place for the fresh goods and, if necessary, for the greetings of one possibly outside the rotating housing downstream sifter by at least one, preferably through two openings, which are opposite in the housing end walls are arranged.
- the good material outlet from the internal Good circulation takes place through an opening in the front wall of the housing laterally below the nip through to the outside, for. B. means a good material chute, vibrating chute etc.
- the fresh material is fed in not centrally from above, but laterally from one or both End faces.
- the grist while it is in the rotatably mounted material conveyor ring is circulated within this material conveyor ring also in the axial direction to the opposite Movement side end wall and there through the discharge opening carried out if the material entry occurs on one side, or if material enters from both sides, in the axial direction to the center of the roll moved, and in this case also carried out from the center of the roller, e.g. B. by a pipe conveyor trough.
- the upper part of the rotating housing can be flowed through with fresh air for cooling or with hot gas for drying become.
- a suitable arrangement of gas inlet and outlet ensures that Sighting of the material thrown off the material conveyor ring has been reached before it enters the nip for further grinding.
- the material discharge can also be done entirely with the gas flow.
- the selected gas velocity the fineness of the pneumatic is determined in the rotary housing discharged fines.
- the fines can e.g. B. deposited in cyclones and be further ground (e.g. in a ball mill) or it will fed to an external classifier, where the separation into finished goods and Greetings are done. These grains are made through the opening (s) in the housing end walls fed back to the nip.
- This externally performed viewing process to achieve higher finenesses can also be installed in the rotary housing of the high-pressure roller press horizontal basket of a basket sifter, the one above the roller press is arranged.
- the one dropped from the material feed ring Press discharge material is partly from the gas flow through several openings in the end walls enter and grasp the rod basket fed, and partly fed directly to the bar basket.
- the fine goods with the desired fineness by the speed of the rod basket and the Gas speed set, flows through the rod basket and starts one or more openings in the end walls together with the Gas flow off.
- the fine material is separated in cyclones or in a filter.
- the rotation of the material feed ring 16 takes place over the cylindrical jacket z. B. by the driven bearing roller 15.
- the bearing blocks 17, 18 etc. of the two rollers 10, 11 outside the fixed one Side end walls 12, 13 of the housing arranged and in one here Machine frame not shown stored.
- the inner wall of the rotatably mounted, rotatable material conveyor ring 16 can be used for the internal material cycle with lifting elements 19 be provided.
- the material conveyor ring 16 rotates at a speed that is below the so-called critical speed lies, d. that is, the ring 16 the discharge material, which in Fig. 1 with 20 is shown schematically up to the upper vertex of the Takes ring 16 and this good material from above into the nip drops between the two rollers 10, 11.
- the rotary drive of the conveyor ring 16 is preferred designed for speed control. It would also be possible to To rotate conveyor ring 16 above the critical speed and that Remove good material from the conveyor ring in the area of the upper vertex.
- the material inlet for the fresh material 21 and for any recirculated semolina a downstream sifter takes place through one or more openings 22 in one or in both housing end walls 12, 13 from the side, and the good material outlet 23 for discharging the ground material from the internal grinding circuit takes place through an opening 24 in the housing end wall 12, 13 laterally below the nip by means of a Good material slide or vibrating trough 25 [Fig. 2], or pipe conveyor trough 25 [Fig. 4], and / or pneumatically through one or more discharge openings or discharge elbow 27.
- the discharge element 25 could also be arranged above the press rolls.
- the fresh material is fed in So not centrally from above on the nip, but laterally from one or both sides of the roller. That after passing The pre-ground material from the nip is fed with the material feed ring 16 transported up and back to the grinding rollers fed further grinding or repeated high pressure pressing.
- the Grist also moves in the axial direction to the opposite one Front of the roller or for double-sided material feed Towards the middle, especially if there is a bed of material above the nip builds up, and is after multiple high-pressure pressing via the discharge member 25, either from the edge or from the center of the roller discharged from the machine.
- One or both side end walls 12, 13 of the housing can be one or several openings 29 for the entry of gas flows 26 and one or have a plurality of openings 27 for extracting the gas flows 28.
- the two press rolls 10, 11 enclosing Housing depending on requirements, either with fresh air or with Hot gases are applied, so the regrind can be cooled or be dried.
- the gas velocity in the housing can be increased that the material is discharged exclusively with the gas flow.
- the press housing also the classifier housing.
- the one on the rod basket 30 separated grains are directly on the rollers underneath 10, 11 fed and further ground.
- Roller press the good entry to the material conveyor ring 16 also below the rollers 10, 11 to be arranged, and the mechanical material discharge by means of a slide or vibration conveyor 25 can also be above the rollers to be ordered.
- FIGS. 5 to 9 show the high-pressure roller press according to the invention used with the rotatably mounted material conveyor ring 16 for pre-grinding become.
- the one discharged from the pre-grinding with internal material circulation Gutmaterial 23 is in a second grinding stage, for. B. ball mill 31 continue grinding.
- Fig. 6 shows the partially finished grinding in the High pressure roller press with internal material circulation and with integrated Sighting device.
- the discharged good material 23 is in a cyclone separator 32 separated from the gas stream and z. B. in the ball mill 31st continue grinding.
- Fig. 7 shows the finish grinding in the high pressure roller press with internal material circulation and with integrated viewing device.
- the finished product 33 is immediately separated off in the cyclone separator 32.
- Fig. 8 shows the partially finished grinding in the inventive High pressure roller press with external classifier 34, with mechanical and / or pneumatic external material circulation, cyclone separator 32 and ball mill 31.
- Fig. 9 shows the finished grinding in the inventive Roller press with external classifier 34, with mechanical and / or pneumatic external material circulation and with cyclone separator 32 for separating the finished goods 33.
- the regulation of the fresh material supply 21 to the high-pressure roller press according to the invention can be advantageous depending on the power consumption the drive of the material conveyor ring 16 take place.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Description
- Fig. 1:
- einen Vertikalschnitt durch die erfindungsgemäße Hochdruck-Walzenpresse der Fig. 2, teilweise in Ansicht;
- Fig. 2:
- die Hochdruck-Walzenpresse der Fig. 1 im Vertikalschnitt längs einer Ebene durch den Walzenspalt;
- Fig. 3 und 4:
- die Hochdruck-Walzenpresse mit Materialaufgabe und
Gasein- und -austritt durch beide Gehäuse-Stirnwände mit Materialaustrag unterhalb von der Walzenmitte aus, und mit einem über den Walzen angeordneten in Rotation versetzbaren Stabkorb eines integrierten dynamischen Stabkorbsichters; - Fig. 5 bis 9:
- verschiedene Schaltungsanordnungen von Mahlanlagen mit Einsatz der erfindungsgemäßen Hochdruck-Walzenpresse.
Claims (13)
- Hochdruck-Walzenpresse zur Druckzerkleinerung körnigen Gutmateriales, mit zwei gegenläufig angetriebenen und durch einen Walzenspalt voneinander getrennten Walzen (10, 11), die von einem drehbar gelagerten in Drehung versetzbaren Ring (16) umgeben sind, dadurch gekennzeichnet, dass die beiden Walzen (10, 11) von einem Gehäuse umhaust sind, bestehend aus zwei feststehenden, d. h. nicht mitrotierenden Seiten-Stirnwänden (12, 13), zwischen denen der drehbare Ring als Materialförderring (16) ausgebildet für einen internen Gutmaterialkreislauf angeordnet ist, wobei der Gutmaterialeinlauf durch eine oder mehrere Öffnungen (22) in einer oder in beiden Gehäuse-Stirnwänden (12,13) von der Seite und der Gutmaterialauslauf ebenfalls seitlich durch eine oder mehrere Öffnungen (24) in der Gehäuse-Stirnwand (12, 13) über ein Austragsorgan (25) und/oder über einen oder mehrere Austragskrümmer (27) oberhalb des Walzenspaltes erfolgen.
- Hochdruck-Walzenpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerböcke (17, 18) der beiden Walzen (10, 11) außerhalb der feststehenden Seiten-Stirnwände (12, 13) des Gehäuses angeordnet sind.
- Hochdruck-Walzenpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Rotation des Materialförderringes (16) über dessen zylindrischen Mantel durch eine angetriebene Lagerrolle (15) erfolgt.
- Hochdruck-Walzenpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Innenwandung des drehbar gelagerten in Drehung versetzbaren Materialförderringes (16) für den internen Gutmaterialkreislauf mit Hubelementen (19) versehen ist.
- Hochdruck-Walzenpresse nach den Ansprüchen 1, 3 oder 4, dadurch gekennzeichnet, daß der Materialförderring (16) mit z. B. ca. 40 bis 80 % der kritischen Drehzahl rotiert, d. h., daß der Ring (16) das Pressenaustragsgut (Schülpenmaterial) bis vor den oberen Scheitelpunkt des Ringes mitnimmt und dieses Gutmaterial von oben in den Walzenspalt fallen läßt.
- Hochdruck-Walzenpresse nach Anspruch 1, dadurch gekennzeichnet, daß der Gutmaterialauslauf (23) aus dem internen Gutkreislauf seitlich durch eine Gehäuse-Stirnwand (12, 13) hindurch aus einer Gutmaterialrutsche oder Vibrationsrinne bzw. Rohrförderer (25) besteht.
- Hochdruck-Walzenpresse nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die eine oder beide Seiten-Stirnwände (12, 13) des Gehäuses eine oder mehrere Öffnungen zum Eintritt einer Gasströmung (26) und eine oder beide Seiten-Stirnwände (12, 13) des Gehäuses eine oder mehrere Öffnungen (27) zum Abzug der Gasströmung (28) aufweisen.
- Hochdruck-Walzenpresse nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß der Förderring (16) mit einem drehzahlregelbaren Antrieb versehen ist.
- Hochdruck-Walzenpresse nach Anspruch 7, dadurch gekennzeichnet, daß das vom Förderring (16) abgeworfene Gutmaterial durch die Gasströmung (26) einer Sichtung unterworfen wird.
- Hochdruck-Walzenpresse nach Anspruch 9, dadurch gekennzeichnet, daß der Austrag des gesichteten Materials ausschließlich mit der Gasströmung (28) erfolgt.
- Hochdruck-Walzenpresse nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß die Sichtung mittels eines innerhalb des Materialförderringes (16) des Walzenpressengehäuses angeordneten rotierenden Stabkorbes (30) erfolgt.
- Hochdruck-Walzenpresse nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die Regelung der Frischgutzufuhr durch die Leistungsaufnahme des Antriebsmotors (21) des Materialförderringes (16) erfolgt.
- Hochdruck-Walzenpresse nach einem oder mehreren der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß mindestens eine Lagerrolle (14, 15) des Förderringes (16) auf einer Druckmeßdose gelagert ist und deren Meßwert zur Regelung der Frischgutzufuhr (21) herangezogen wird.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19615479 | 1996-04-19 | ||
| DE19615479 | 1996-04-19 | ||
| DE19630687A DE19630687A1 (de) | 1996-04-19 | 1996-07-30 | Hochdruck-Walzenpresse zur Druckzerkleinerung körnigen Gutmaterials |
| DE19630687 | 1996-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0801985A1 EP0801985A1 (de) | 1997-10-22 |
| EP0801985B1 true EP0801985B1 (de) | 2001-05-30 |
Family
ID=26024894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97104558A Expired - Lifetime EP0801985B1 (de) | 1996-04-19 | 1997-03-18 | Hockdruck-Walzenpresse zur Druckzerkleinerung von körnigem Gutmaterial |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5918823A (de) |
| EP (1) | EP0801985B1 (de) |
| DK (1) | DK0801985T3 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19726523A1 (de) * | 1997-06-23 | 1998-12-24 | Kloeckner Humboldt Wedag | Kreislaufmahleinrichtung mit Hochdruck-Walzenpresse und Sichter |
| DE19948727A1 (de) * | 1999-10-09 | 2001-04-12 | Kloeckner Humboldt Wedag | Kreislaufmahleinrichtung mit Hochdruck-Walzenmühle und Sichter |
| DE10259541A1 (de) * | 2002-12-19 | 2004-07-08 | Khd Humboldt Wedag Ag | Kreislaufmahleinrichtung mit Mühle und Sichter |
| DE10332062A1 (de) * | 2003-07-11 | 2005-01-27 | Carl Zeiss Jena Gmbh | Anordnung im Beleuchtungsstrahlengang eines Laser-Scanning-Mikroskopes |
| US8632028B2 (en) | 2010-09-02 | 2014-01-21 | Flsmidth A/S | Device for the comminution of material |
| DE102014014945A1 (de) * | 2014-10-09 | 2016-04-14 | Micro Impact Mill Limited | Vorrichtung und Verfahren zum Erzzerkleinern mit einer hydraulischen Federeinrichtung |
| CN110882811B (zh) * | 2019-12-12 | 2021-04-30 | 江苏吉能达环境能源科技有限公司 | 一种多级粉磨超细粉生产设备 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE123935C (de) * | ||||
| US2138715A (en) * | 1935-05-06 | 1938-11-29 | Paper & Ind Appliances Inc | Apparatus for treating paper pulp and the like |
| GB547181A (en) * | 1941-02-08 | 1942-08-17 | Albert Joshua Burrell | Reducing or crushing apparatus |
| US2552360A (en) * | 1945-01-10 | 1951-05-08 | Zichis Joseph | Method of and apparatus for dehydrating materials |
| DE939301C (de) * | 1949-05-12 | 1956-02-16 | Arno Andreas | Vorrichtung zum Mahlen von Massenguetern |
| DE1295988B (de) * | 1963-10-21 | 1969-05-22 | Nordberg Manufacturing Co | Verfahren zum Regeln des Fuellungsgrades einer Trommelmuehle |
| US4052013A (en) * | 1976-03-08 | 1977-10-04 | Georgia-Pacific Corporation | Apparatus for shredding rubber tires and other scrap materials |
| DE3518543C3 (de) * | 1985-05-23 | 1996-12-19 | Kloeckner Humboldt Deutz Ag | Verfahren und Einrichtung zur Zerkleinerung bzw. Mahlung spröden Mahlgutes |
| DE9016588U1 (de) * | 1990-12-06 | 1991-06-27 | Unger, Günther, 5628 Heiligenhaus | Mahlsiebanlage |
| IT1265450B1 (it) * | 1993-12-27 | 1996-11-22 | Italcementi Spa | Molino tubolare per la macinazione di materie prime naturali e sintetiche, in particolare per l'industria del cemento |
-
1997
- 1997-03-18 DK DK97104558T patent/DK0801985T3/da active
- 1997-03-18 EP EP97104558A patent/EP0801985B1/de not_active Expired - Lifetime
- 1997-04-21 US US08/844,583 patent/US5918823A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DK0801985T3 (da) | 2001-08-06 |
| US5918823A (en) | 1999-07-06 |
| EP0801985A1 (de) | 1997-10-22 |
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