EP1346774B1 - Système de positionnement et d'indexation du rotor d'un broyeur à percussion - Google Patents
Système de positionnement et d'indexation du rotor d'un broyeur à percussion Download PDFInfo
- Publication number
- EP1346774B1 EP1346774B1 EP03290393A EP03290393A EP1346774B1 EP 1346774 B1 EP1346774 B1 EP 1346774B1 EP 03290393 A EP03290393 A EP 03290393A EP 03290393 A EP03290393 A EP 03290393A EP 1346774 B1 EP1346774 B1 EP 1346774B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- indexing
- rod
- jack
- screen
- 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 abstract description 2
- 230000035939 shock Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000009527 percussion Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining 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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
- B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
- B02C13/095—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate with an adjustable anvil or impact plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
Definitions
- the invention relates to impact crushers or crushers for to quarry or mining facilities for reduction dimension of aggregates or ores. More particularly, it relates to a rotor positioning system of a grinder to percussion for its indexing in order to adjust the gap between the end strikers mounted on the rotor and the last shock screen of the mill.
- the aggregates are introduced by a opening of feeding then are struck by the strikers solidarity of the rotor and sent against the shock shield (s) located in the grinding chamber to see their reduced dimensions. Once introduced, the aggregates undergo this process several times until what they reach the dimension of the adjustment gap between the end the closer to the rotor of the last shock screen and the end of the strikers. Once this dimension is reached, the reduced granulate passes between the strikers and the screen and is evacuated to the exit.
- This adjustment is often done manually by the operator who must first, when stationary, turn the rotor until it has the end one of the strikers closest to that of the last shock screen, then make a manual measurement of the distance between this end of the firing pin and that of the screen and act on the central hydraulic controlling the output of a positioning cylinder the screen until you get the desired distance.
- the object of the present invention is therefore to allow this adjustment of the distance R between the last shock screen and the rotor strikers is performed without direct manual operator intervention by indexing the rotor position for adjustment.
- an indexation system of rotor of a percussion mill comprising a grinding chamber, a rotor provided with strikers regularly distributed on its periphery and at least one shock screen, one end of which is hinged to the machine, and can rotate around this joint to move closer or further away from the rotor with an adjustment jack, the display defining at the point of maximum approach to the radial end of one of the strikers, a gap determining a particle size given in that the rotor comprises an indexing piece in the form of prism, coaxial and solidary in rotation with it and presenting a number of edges equal to the number of strikers, this piece being positioned on the rotor axis so that the application in the plane defining two edges of a plate mounted at the end of a rod of indexing cylinder, perpendicular to this rod, causes a Rotating the rotor to a position in which the radial end of the striker corresponding to said ridge is at said position of
- the mill shown in FIG. 1 comprises a grinding chamber 1 in which rotates a rotor 2 provided with strikers 3 regularly distributed on its periphery.
- the example shown shows four strikers.
- shock screens 4 and 5 are arranged in the grinding chamber.
- the screens 4 and 5 are articulated at one of their ends on axes 6 and 7, respectively, secured to the wall of the grinding chamber 1.
- the screens 4 and 5 can rotate around the pivots 6 and 7 by means of adjusting cylinders 8 and 9 respectively to move closer or further away their free ends of the rotor.
- the setting of the particle size to be obtained for the material to be grinded is carried out by bringing the free end closer or as far as 12 of the last screen 5 of the periphery of the rotor to obtain a interval R in which will pass the aggregates having reached the adjustment dimension.
- an indexing piece 13 shaped square base prism mounted on the axis of the rotor and secured in rotate with him.
- Each edge of the indexing part 13 is associated with a striker of the rotor 2.
- An indexing jack 14, one end is connected to the frame of the machine, and provided with the free end of its rod an indexing plate 15 perpendicular to said rod is mounted way to deploy radially towards the axis of the rotor.
- the adjustment cylinder 9 of the screen 5 is provided with a rod 17, integral with its rod and parallel to it, sliding in a guide sleeve 16 provided with a position sensor, in order to to indicate the position of the cylinder.
- the indexing jack 14 With the machine stationary, the indexing jack 14 is deployed and its rod advance the indexing plate towards the axis of the rotor 2 until that it comes into contact with the indexing part 13. Most often, the indexing piece 13 will not present one of its faces parallel to the index plate 15 and the latter will therefore press on the nearest edge, under the effect of the jack, and rotate the rotor 2 until the plate 15 is flat against the face of the indexing piece 13. In this position of the rotor, the striker 3 corresponding to the requested edge of the piece 13 has its radial end at the point of maximum approach to the end free screen 5. The operator then actuates the adjustment cylinder 9 to bring this end closer to the rotor until they enter in touch. He thus determined the origin (point 0) of the gap measure A. It then actuates the adjustment cylinder 9 in the opposite direction until his instrument for measuring the movement of the cylinder indicates to him the value corresponding to the desired difference R, that is to say, a given particle size.
- the number of edges of the indexing piece 13 is the same as that of the strikers 3.
- FIG. 3 shows a second exemplary embodiment of the invention in which indexing piece is a hexagonal prism.
- the system is the same, the number of positions indexing being in this case six.
- FIG. 1 A third exemplary embodiment is shown in FIG.
- the piece 13 is constituted by a star-shaped prism, at four branches in the example, the tips of the branches of the star being provided with rollers 20 facilitating the sliding of said tip on the index plate 15.
- the indexing cylinder is provided with a guide rod 18 mounted secured to its stem and parallel to it, sliding in a sleeve 19 to prevent rotation of the jack rod during his operation.
- the system according to this exemplary embodiment functions as for the previous achievements.
- the operator actuates the cylinder
- the indexing plate 15 comes into contact with one rollers 20 of the indexing piece 13 which rolls on the plate and the corresponding branch is pushed back by turning the rotor 2 until the roller of the next branch also comes into contact of the indexing plate, the latter then being in the plane defined between the rollers 20 surmounting the edges of the prism
- the operator then activates the last adjustment cylinder 9 to bring the screen 5 into contact with the outer radial end of the striker 3 to define the origin of measuring the gap R.
- the operator sets the difference R to the value corresponding to the desired particle size.
- wear parts 22 arranged at the exposed surface of the shock screen 5. These wear parts allow extend the life of the screen.
- the example shown shows an indexing piece 13 formed by a prism whose base is a four-pointed star. It's obvious that it is possible, as in the previous cases, to increase the number of strikers 3 and therefore use a prism whose base star has six branches or more.
- a programmable logic controller or other similar system can be used to automatically perform all the sequences of setting after saving the R difference to the value desired by the operator.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Description
Claims (6)
- Système d'indexation du rotor d'un broyeur à percussion, comportant une chambre de broyage, un rotor pourvu de percuteurs régulièrement répartis sur sa périphérie et au moins un écran de choc, dont une extrémité est articulée sur le bâti de la machine, et peut pivoter autour de cette articulation pour se rapprocher ou s'éloigner du rotor grâce à un vérin de réglage, l'écran définissant au point de rapprochement maximal avec l'extrémité radiale de l'un des percuteurs un écart (R) qui détermine une granulométrie donnée, le rotor (2) comportant une pièce d'indexation (13) en forme de prisme, coaxiale et solidaire en rotation avec lui et présentant un nombre d'arêtes en saillie égal au nombre de percuteurs (3), cette pièce étant positionnée sur l'axe du rotor de façon que l'application contre l'une de ses faces d'une plaque d'indexation (15) montée à l'extrémité d'une tige de vérin d'indexation (14), perpendiculairement à cette tige, provoque une rotation du rotor (2) jusqu'à une position dans laquelle l'extrémité du percuteur (3) correspondant à ladite arête se trouve à ladite position de rapprochement maximal avec l'écran de choc (5), permettant ainsi, par rapprochement dudit écran (5) au moyen du vérin de réglage (9) jusqu'au contact avec l'extrémité dudit percuteur(3), de définir l'origine de réglage de l'écart (R) entre ces deux éléments (5, 3) et ainsi d'ajuster ledit écart pour la granulométrie recherchée.
- Système d'indexation du rotor d'un broyeur à percussion selon la revendication 1, caractérisé en ce que la pièce d'indexation (13) est en forme de prisme carré.
- Système d'indexation du rotor d'un broyeur à percussion selon la revendication 1, caractérisé en ce que la pièce d'indexation (13) est en forme de prisme hexagonal
- Système d'indexation du rotor d'un broyeur à percussion selon la revendication 1, caractérisé en ce que la pièce d'indexation (13) est en forme de prisme en étoile.
- Système d'indexation du rotor d'un broyeur à percussion selon la revendication 4, caractérisé en ce que la plaque d'indexation (15) comporte un doigt (21) placé de telle façon et avec une longueur telle que, lorsqu'une branche de la pièce d'indexation (13) est alignée avec la tige du vérin d'indexation (14), il vienne vienne s'appliquer contre une branche voisine et fasse tourner le rotor (2) pour qu'il puisse être tourné par la plaque d'indexation (15).
- Système d'indexation du rotor d'un broyeur à percussion selon l'une quelconque des revendications précédentes, caractérisé en ce que le vérin d'indexation (14) est pourvu d'une tringle de guidage (18), montée solidaire de sa tige et parallèlement à elle, coulissant dans un manchon de guidage (19), afin d'empêcher une rotation de la tige de vérin pendant son opération.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0203524 | 2002-03-21 | ||
FR0203524A FR2837407B1 (fr) | 2002-03-21 | 2002-03-21 | Systeme de positionnement du rotor et d'indexation d'un broyeur a percussion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1346774A1 EP1346774A1 (fr) | 2003-09-24 |
EP1346774B1 true EP1346774B1 (fr) | 2005-09-28 |
Family
ID=27772257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03290393A Expired - Lifetime EP1346774B1 (fr) | 2002-03-21 | 2003-02-18 | Système de positionnement et d'indexation du rotor d'un broyeur à percussion |
Country Status (8)
Country | Link |
---|---|
US (1) | US6953168B2 (fr) |
EP (1) | EP1346774B1 (fr) |
AT (1) | ATE305335T1 (fr) |
CA (1) | CA2423250C (fr) |
DE (1) | DE60301682T2 (fr) |
ES (1) | ES2250845T3 (fr) |
FR (1) | FR2837407B1 (fr) |
MX (1) | MXPA03002429A (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2952836B1 (fr) | 2009-11-20 | 2013-06-28 | Metso Minerals France S A | Broyeur a percussion. |
FR2970882B1 (fr) | 2011-01-31 | 2013-01-18 | Metso Minerals France Sa | Broyeur a percussion a dispositif de positionnement du rotor. |
CN102671745B (zh) * | 2012-05-07 | 2014-06-18 | 四川川润环保能源科技有限公司 | 一种具有清刀功能的城市生活垃圾破袋破碎装置 |
EP2866939B1 (fr) * | 2012-06-29 | 2020-10-14 | Metso Minerals, Inc. | Captage de position de rotor et la commande pour un concasseur à impact |
CN104289274A (zh) * | 2014-10-17 | 2015-01-21 | 上海申重矿机科技有限公司 | 新型点击破碎机 |
CN104741169A (zh) * | 2015-03-20 | 2015-07-01 | 枣庄矿业(集团)有限责任公司柴里煤矿 | 矿用新型轮式破碎机 |
CN105709912B (zh) * | 2016-04-29 | 2019-02-05 | 江苏景泽环保科技有限公司 | 一种生活垃圾破碎机自动开门装置 |
CN107790228B (zh) * | 2017-10-13 | 2023-02-10 | 江苏徐工工程机械研究院有限公司 | 一种反击式破碎机、其转子定位系统和转子定位方法 |
WO2019226888A1 (fr) * | 2018-05-23 | 2019-11-28 | Vermeer Manufacturing Company | Déchiqueteuse pour broyer un matériau en vrac |
GB2579359B (en) * | 2018-11-28 | 2021-04-14 | Terex Gb Ltd | Rotor positioning device of an impact crusher |
CN110523475B (zh) * | 2019-09-06 | 2021-06-11 | 宁波卫山多宝建材有限公司 | 一种玻璃纤维生产装置 |
CN112221561B (zh) * | 2020-09-24 | 2021-08-27 | 陕西翰翊环保科技有限公司 | 一种高炉炼铁炉渣处理方法 |
CN114588970A (zh) * | 2022-02-24 | 2022-06-07 | 枣庄鑫金山智能装备有限公司 | 一种矿山用智能定量控制反击破碎机 |
CN115364956B (zh) * | 2022-08-29 | 2023-06-16 | 天津太平洋制药有限公司 | 一种颗粒药剂研磨装置 |
WO2024069462A1 (fr) * | 2022-09-29 | 2024-04-04 | Flsmidth A/S | Broyeur à rouleaux à espace de broyage réglable |
LU502855B1 (de) * | 2022-09-29 | 2024-03-29 | Flsmidth Mining Tech Gmbh | Walzenbrecher mit einstellbarem Brechspalt |
CN117960341B (zh) * | 2024-03-28 | 2024-06-11 | 山东中医药大学附属医院 | 一种呼吸科用中药材粉碎装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2053693C2 (de) * | 1970-11-02 | 1982-08-12 | Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster | Dreh- und Feststellvorrichtung für Rotoren von Prall- und Hammermühlen |
US3771733A (en) * | 1972-07-03 | 1973-11-13 | Deere & Co | Feed grinding apparatus |
US4084752A (en) * | 1975-12-11 | 1978-04-18 | Kawasaki Jukogyo Kabushiki Kaisha | Gap adjusting system for crusher and method |
FR2456557A1 (fr) * | 1979-05-17 | 1980-12-12 | Dragon App | Dispositif pour le reglage a distance de l'intervalle separant une enclume d'un rotor de concasseur a percussion |
US5226604A (en) * | 1989-04-07 | 1993-07-13 | Salzgitter Maschinenbau Gmbh | Method of and apparatus for adjusting comminuting machines |
DE4440076C1 (de) * | 1994-11-10 | 1996-04-04 | Noell Serv & Maschtechn Gmbh | Prallbrecher mit hydraulischer Verstellung des den Zerkleinerungsgrad bestimmenden Mahlspaltes |
DE19511097C1 (de) * | 1995-03-25 | 1996-07-11 | Krupp Foerdertechnik Gmbh | Verfahren zur automatischen Einstellung des Mahlspaltes einer Zerkleinerungsmaschine und Zerkleinerungsmaschine |
-
2002
- 2002-03-21 FR FR0203524A patent/FR2837407B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-18 AT AT03290393T patent/ATE305335T1/de active
- 2003-02-18 ES ES03290393T patent/ES2250845T3/es not_active Expired - Lifetime
- 2003-02-18 DE DE60301682T patent/DE60301682T2/de not_active Expired - Lifetime
- 2003-02-18 EP EP03290393A patent/EP1346774B1/fr not_active Expired - Lifetime
- 2003-03-17 US US10/388,439 patent/US6953168B2/en not_active Expired - Lifetime
- 2003-03-18 CA CA002423250A patent/CA2423250C/fr not_active Expired - Fee Related
- 2003-03-19 MX MXPA03002429A patent/MXPA03002429A/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1346774A1 (fr) | 2003-09-24 |
FR2837407A1 (fr) | 2003-09-26 |
ATE305335T1 (de) | 2005-10-15 |
ES2250845T3 (es) | 2006-04-16 |
US6953168B2 (en) | 2005-10-11 |
CA2423250C (fr) | 2009-02-17 |
DE60301682D1 (de) | 2006-02-09 |
DE60301682T2 (de) | 2006-07-13 |
US20030178517A1 (en) | 2003-09-25 |
MXPA03002429A (es) | 2004-08-11 |
CA2423250A1 (fr) | 2003-09-21 |
FR2837407B1 (fr) | 2004-05-28 |
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