EP2024091A1 - Presse à rouleaux notamment pour le broyage d'un lit de matière - Google Patents
Presse à rouleaux notamment pour le broyage d'un lit de matièreInfo
- Publication number
- EP2024091A1 EP2024091A1 EP07725735A EP07725735A EP2024091A1 EP 2024091 A1 EP2024091 A1 EP 2024091A1 EP 07725735 A EP07725735 A EP 07725735A EP 07725735 A EP07725735 A EP 07725735A EP 2024091 A1 EP2024091 A1 EP 2024091A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nip
- pressure
- nozzle
- pressure screw
- fine
- 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.)
- Granted
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
- B02C4/286—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
Definitions
- the invention relates to a roll press with two rotatably mounted counter-rotating and separated by a press nip rolls for pressure treatment, in particular for Gutbettzerklein ceremonies or compaction or briquetting granular good, with a arranged above the nip Gutaufgabeschacht with an entry opening for the introduction of coarse material and with a Opening for the introduction of fine material such.
- the supply of Gutmaterialströmen with significantly different grain size and particle size distribution is problematic because of segregation in Gutaufgabeschacht to roll press. Namely, the bulk density of the recirculated grits is considerably smaller than the bulk density of the fresh feedstock, ie the porosity of the classifier grain is greater than that of the fresh feedstock.
- the changing supply of coarse and fine material to the nip interferes with the stability of the grinding bed and reduces the milling efficiency.
- Gutbettzerkleintations roller press of DE-38 23 929 A1 also three rollers are used in a machine frame, namely a driven main roll, at its upper portion a non-driven idler roller and at the lower portion of a second non-driven idler roller are pressed by means of hydraulic pressure devices.
- a roller press is known, above the nip of which several filling shafts are arranged side by side, in each of which a filling screw is located, d. H. the entire feed material is fed to the nip via the filling screws. Separate treatment and feed of coarse material and fine material in the nip does not take place.
- the invention has for its object to provide a particular used for Gutbettzerkleintation comparatively simple built roller press, in the Gutaufgabeschacht both coarse material such. B. Frischgut as well as fine-grained material such. B. recirculated grits of a downstream classifier and / or z. As fly ash are introduced, despite the significantly different particle size and particle size distribution in the two to be recovered in the nip flows the stability of the bed of material or grinding bed and thus a high Mahl Fischs- degree is guaranteed.
- a pressure screw conveying the fine grain under pressure is introduced into the latter according to the invention, the nozzle-like orifice of which extends into the central region of the product feed of the press nip of the roll press.
- the fine-grained material is enclosed by the coarse-grained material, whereby the risk of segregation of the two streams in the crop hopper and a changing supply of coarse and fine material into the nip is minimized. This succeeds particularly well when the nozzle of the pressure screw for introducing the fine material is arranged above the narrowest nip parallel to this flat nozzle.
- the nozzle of the pressure screw which is inserted transversely to the nip from the side in the Gutaufgabeschacht horizontally or obliquely to the horizontal lying hinged via a hinge to the mouth of the pressure screw.
- the nozzle can in particular center flat nozzle within the print zone in the good bed above the nip of the roller press in the printing center itself.
- Fig. 1 a first embodiment of the roller press according to the invention with an approximately horizontally arranged introduced into the Gutauftownschacht fines pressure screw, and
- Fig. 2 a second embodiment of the roller press, wherein the pressure screw is arranged obliquely inclined to the horizontal.
- the roll press according to the invention comprises two rotatably mounted, counterrotatable and separated by a press nip rollers 10, 11, of which the roller 10 is the hard roller, while the other roller 11 is formed as a transverse to the nip movable Loswalze whose Bearing housings are supported by hydraulic cylinders, with which the roll pressing force is applied.
- a Gutaufgabeschacht 12 which has on its upper side an entry opening 13 for the introduction of coarse material 14, which is supplied under the action of gravity.
- Grobgutmaterial 14 may be z. B. to be comminuted or to be ground fresh product such.
- cement clinker, etc. and the slope top of this bulk material within the Gutaufgabeschachtes 12 is indicated by 15.
- the crop feed chute 12 on the side of at least one fines entry opening 16 through which in the feed chute 12 a fine material under pressure pressure-promoting screw conveyor 17 is inserted, the nozzle-like orifice extends into the central region of the Guteinzuges the press nip.
- Grain size and grain distribution of the feed opening 18 of the screw conveyor 17 imported fines 19 are significantly different to the coarse material 14.
- the grain size of the introduced fines 19 z. B. up to 100% ⁇ 3 mm, which is the case when introducing z. From fine recirculated classifier gullies, fly ash, blastfurnace slag, slag meal etc.
- the nozzle at the outlet of the pressure screw 17 for introducing the fine material fraction 19 is a flat nozzle 20 arranged parallel to the latter located within the Gutbettschüt- 15 above this narrowest nip.
- This flat nozzle 20 may be articulated via a hinge 21 to the mouth of the pressure screw 17 ,
- the nozzle 20 of the pressure screw 19 in the pressure center of the Guteinzugs Reifenes the press nip on all sides of the roll gap in the remaining coarse grain fraction 15 concluded, thereby segregation of the two streams in the narrowest nip, in which in the Gutbettzerklein ceremonies the comparatively high roll pressure in the Good bulk material is effective, are avoided.
- the pressure worm 17 lying transversely to the nip is inserted obliquely to the horizontal into the material feed chute 12 of the roller press, that is to say in FIG. H. the Gutaufgabeende the pressure screw 17 is higher than the mouth of the pressure screw with its flat nozzle 20.
- This solution has the additional advantage that the assembly and disassembly of the roller 10 is not hindered by the pressure screw 17.
- the pressing force on the material of the rolls 10, 11 of the roll press is more than 2 MN / m roll length.
- the grain size of a substantial part of the abandoned coarse material 14 may be larger than the width of the narrowest nip of z. B. 20 mm, which is the case for. B. in grinding not pre-shredded cement clinker with a grain size to z. B. 100 mm, so that then the feed material in the narrowest nip is comminuted by a combined single-grain size reduction and Gutbettzer-monyung.
- the material passes from the nip crushed and partially agglomerated, ie compacted into slugs 22 whose proportion of particles reduced to the desired final fineness (eg 30% ⁇ 90 ⁇ m) can already be relatively high.
- the slugs 22 are then deagglomerated and sifted in a downstream device, the sifter 19 being recirculated to the pressure screw 17 and thence to the narrowest nip of the roller press.
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006025833A DE102006025833A1 (de) | 2006-06-02 | 2006-06-02 | Rollenpresse insbesondere zur Gutbettzerkleinerung |
PCT/EP2007/004855 WO2007140929A1 (fr) | 2006-06-02 | 2007-06-01 | Presse à rouleaux notamment pour le broyage d'un lit de matière |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2024091A1 true EP2024091A1 (fr) | 2009-02-18 |
EP2024091B1 EP2024091B1 (fr) | 2012-12-12 |
Family
ID=38324018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07725735A Not-in-force EP2024091B1 (fr) | 2006-06-02 | 2007-06-01 | Presse à rouleaux notamment pour le broyage d'un lit de matière |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090236455A1 (fr) |
EP (1) | EP2024091B1 (fr) |
CN (1) | CN101460247A (fr) |
CA (1) | CA2653065A1 (fr) |
DE (1) | DE102006025833A1 (fr) |
DK (1) | DK2024091T3 (fr) |
RU (1) | RU2008144301A (fr) |
WO (1) | WO2007140929A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008043140A1 (de) | 2008-07-02 | 2010-01-07 | Bühler AG | Verfahren und Einrichtung zur Herstellung von pflanzlichen Mahlprodukten |
KR101678625B1 (ko) * | 2008-07-02 | 2016-11-23 | 뷔흘러 에이지 | 가루 및/또는 세몰리나를 만드는 장치 및 방법 |
CN101985107A (zh) * | 2010-07-15 | 2011-03-16 | 王维东 | 一种塑料粉碎机 |
US8632028B2 (en) | 2010-09-02 | 2014-01-21 | Flsmidth A/S | Device for the comminution of material |
CN103223364A (zh) * | 2013-04-23 | 2013-07-31 | 安徽省荆涂机电工程有限公司 | 双螺旋搅拌破碎一体装置 |
DE102013018325B4 (de) | 2013-10-31 | 2019-03-21 | Khd Humboldt Wedag Gmbh | Hochdruckwalzenpresse mit Mahlgutentlüftung und Verfahren zur Vermeidung von Vibrationen bei der Aufgabe von Mahlgut |
CN104785351A (zh) * | 2015-03-27 | 2015-07-22 | 中建材(合肥)粉体科技装备有限公司 | 辊压机分区进料装置 |
CN107088466A (zh) * | 2017-04-28 | 2017-08-25 | 南京市罗奇泰克电子有限公司 | 一种电路基板包装工序中的废料破碎装置 |
CN107362860A (zh) * | 2017-08-09 | 2017-11-21 | 陈秀玲 | 药材破碎机 |
EP3572152B1 (fr) | 2018-05-25 | 2020-08-05 | Bühler AG | Sdispositif de dosage et de répartition pour un moulin à cylindres, moulin à cylindres doté d'un tel dispositif de dosage et de répartition ainsi que procédé de broyage de produit |
CN110860330A (zh) * | 2018-08-27 | 2020-03-06 | 唐山三发普林饲料有限公司 | 一种超微粉碎机 |
CN112337557A (zh) * | 2020-10-19 | 2021-02-09 | 南通康威尔生物化工有限公司 | 一种白酒酿造用原料粉碎装置 |
CN112570079A (zh) * | 2020-11-30 | 2021-03-30 | 福鼎未来景观设计有限公司 | 用于水泥生产的辊压机 |
CN117181362B (zh) * | 2023-09-15 | 2024-03-29 | 南京博达环境科技有限公司 | 一种固废基地质聚合物碾压设备 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE639194C (de) * | 1933-02-21 | 1936-11-30 | Schuechtermann & Kremer Baum A | Verfahren zur Brikettierung von Feinmuell auf Walzenpressen |
DE1247123B (de) * | 1963-07-31 | 1967-08-10 | Rettenmaier & Soehne J | Einrichtung zum Zufuehren eines aus kleinen Teilchen bestehenden Gutes zu einem Walzenspalt |
DK418387A (da) * | 1987-08-11 | 1989-02-12 | Smidth & Co As F L | Fremgangsmaade og apparat til valseknusning og formaling af mineralske materialer |
DE3916641A1 (de) * | 1989-05-22 | 1990-11-29 | Kloeckner Humboldt Deutz Ag | Walzenpresse insbesondere zur druckzerkleinerung koernigen gutes |
DE3926882A1 (de) * | 1989-08-16 | 1991-02-21 | Kloeckner Humboldt Deutz Ag | Kreislaufmahlanlage zur mahlung von sproedem gut |
WO1995009080A1 (fr) * | 1993-09-30 | 1995-04-06 | Maschinenfabrik Köppern Gmbh & Co. Kg | Procede de production de briquettes de fer spongieux a partir de fines de minerai |
GB2367030B (en) * | 2000-09-20 | 2002-12-31 | Reckitt Benckiser Nv | Method and apparatus for manufacturing multi-layer press molded bodies |
DE10144109A1 (de) * | 2001-09-03 | 2003-04-24 | Michael K Bahr | Verfahren zum Verdichten und Granulieren von feindispersen Pulvern |
-
2006
- 2006-06-02 DE DE102006025833A patent/DE102006025833A1/de not_active Withdrawn
-
2007
- 2007-06-01 DK DK07725735.0T patent/DK2024091T3/da active
- 2007-06-01 CN CNA2007800205264A patent/CN101460247A/zh active Pending
- 2007-06-01 RU RU2008144301/21A patent/RU2008144301A/ru not_active Application Discontinuation
- 2007-06-01 WO PCT/EP2007/004855 patent/WO2007140929A1/fr active Application Filing
- 2007-06-01 CA CA002653065A patent/CA2653065A1/fr not_active Abandoned
- 2007-06-01 EP EP07725735A patent/EP2024091B1/fr not_active Not-in-force
- 2007-06-01 US US12/302,672 patent/US20090236455A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2007140929A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK2024091T3 (da) | 2013-03-25 |
CA2653065A1 (fr) | 2007-12-13 |
CN101460247A (zh) | 2009-06-17 |
EP2024091B1 (fr) | 2012-12-12 |
US20090236455A1 (en) | 2009-09-24 |
WO2007140929A1 (fr) | 2007-12-13 |
RU2008144301A (ru) | 2010-07-20 |
DE102006025833A1 (de) | 2007-12-06 |
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