EP1346774A1 - 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
- EP1346774A1 EP1346774A1 EP03290393A EP03290393A EP1346774A1 EP 1346774 A1 EP1346774 A1 EP 1346774A1 EP 03290393 A EP03290393 A EP 03290393A EP 03290393 A EP03290393 A EP 03290393A EP 1346774 A1 EP1346774 A1 EP 1346774A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- indexing
- screen
- rod
- impact crusher
- 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
- 230000035939 shock Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009527 percussion 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 to quarry or mine facilities for reduction dimension of aggregates or ores. More specifically, it relates to a system for positioning the rotor of a mill 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 feed opening then are struck by the integral strikers of the rotor and sent against the shock screen (s) located in the grinding chamber to see their reduced dimensions. Once introduced, the aggregates undergo this process several times up to 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 aggregate passes between the strikers and the screen and is evacuated towards the exit.
- This adjustment is often made manually by the operator who must first, when stopped, turn the rotor until it has the end from one of the strikers closest to that of the last shock screen, then perform a manual measurement of the distance between this end of the striker and that of the screen and act on the control unit hydraulics controlling the output of a positioning cylinder the screen until the desired distance is obtained.
- the object of the present invention is therefore to allow this adjustment of the difference R between the last impact screen and the strikers of the rotor is performed without direct manual operator intervention by indexing the rotor position for adjustment.
- an indexing system of the rotor of an impact crusher comprising a grinding chamber, a rotor provided with strikers regularly distributed around its periphery and at least one shock screen, one end of which is hinged on the machine frame, and can pivot around this joint to approach or move away from the rotor thanks to an adjustment cylinder, the screen defining at the point of maximum approximation with the radial end of one of the strikers, a difference determining a particle size given, in that the rotor comprises an indexing piece in the form of prism, coaxial and integral in rotation with it and having a number of edges equal to the number of strikers, this part 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 indexing cylinder, perpendicular to this rod, causes a rotation of the rotor to a position in which the radial end of the striker corresponding to said edge is at said position of
- the mill shown in Figure 1 has a grinding chamber 1 in which a rotor 2 rotates provided with strikers 3 regularly distributed around its periphery.
- the example shown shows four strikers.
- shock screens 4 and 5 are arranged in the grinding chamber. Screens 4 and 5 are articulated at one of their ends on axes 6 and 7, respectively, integral with the wall of the grinding chamber 1. Screens 4 and 5 can pivot around pivots 6 and 7 thanks to adjustment cylinders 8 and 9 respectively to move closer or farther their free ends of the rotor.
- the grain size setting to be obtained for the material to be ground is carried out by bringing the free end closer or further apart as appropriate 12 of the last screen 5 of the periphery of the rotor in order to obtain a interval R in which the aggregates which have reached the adjustment dimension.
- the grain size adjustment process is carried out in the next.
- the grinder according to the invention shown in Figure 2 comprises, in addition the parts previously described, an indexing piece 13 in the form square base prism mounted on the rotor axis and integral in rotation with him. Each edge of the indexing piece 13 is associated with a striker of the rotor 2.
- the adjustment cylinder 9 of the screen 5 is provided with a rod. 17, mounted integral with its rod and parallel to it, sliding in a guide sleeve 16 provided with a position sensor, so indicate the position of the cylinder.
- the indexing cylinder 14 With the machine stopped, the indexing cylinder 14 is deployed and its rod advances the indexing plate towards the axis of rotor 2 until that it comes into contact with indexing piece 13. Most often, the indexing piece 13 will not have one of its faces parallel to the indexing plate 15 and the latter therefore goes press on the nearest edge, under the effect of the jack, and rotate the rotor 2 until the plate 15 presses flat against the face of the indexing piece 13. In this position of the rotor, the striker 3 corresponding to the stressed edge of the part 13 has its radial end at point of maximum approximation to end free of the screen 5. The operator then actuates the adjustment cylinder 9 to bring this end closer to that of the rotor until they enter in touch. He thus determined the origin (point 0) of the measurement of the difference R. It then actuates the adjustment cylinder 9 in the opposite direction until its cylinder displacement measuring instrument indicates the value corresponding to the difference R sought, that is to say to a given particle size.
- the number of edges of the indexing part 13 is the same as that of the strikers 3.
- Figure 3 shows a second embodiment of the invention in which the indexing piece is a hexagonal prism.
- the system is the same, the number of positions indexing in this case being six.
- FIG. 4 A third exemplary embodiment is shown in FIG. 4.
- the part indexing device 13 is formed by a star-based prism, four branches in the example, the tips of the branches of the star being provided with rollers 20 facilitating the sliding of said point on the indexing plate 15.
- the indexing cylinder is provided with a guide rod 18, mounted integral with its rod and parallel to it, sliding in a sleeve guide 19, to prevent rotation of the cylinder rod during his operation.
- the system according to this exemplary embodiment functions as for the previous achievements.
- the operator actuates the jack indexing plate 14.
- 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 rotating 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 measurement of the deviation R.
- the operator sets the deviation R to the value corresponding to the particle size sought.
- wear parts 22 are shown arranged at the exposed surface of the shock screen 5. These wearing parts make it possible to extend the life of the screen.
- the stressed branch of the indexing piece 13 is located aligned with the axis of the indexing cylinder 14, a finger 21 disposed on the indexing plate 15 parallel to the cylinder rod.
- This finger 21 is placed in such a way and at a length such that when a branch of the indexing piece 13 is aligned with the rod of the indexing cylinder 14, it come to rest against a neighboring branch and turn the rotor to allow the branch concerned to be pushed back by the plate indexing 15.
- the example shown shows an indexing piece 13 formed by a prism whose base is a four-pointed star. It is obvious that we can, as in the previous cases, increase the number of strikers 3 and therefore use a prism whose base star has six branches or more.
- a PLC or other similar system can be used to automatically perform all sequences of setting after saving the setting of the difference R 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)
Abstract
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, caractérisé en ce que le rotor (2) comporte 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 true EP1346774A1 (fr) | 2003-09-24 |
EP1346774B1 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) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105709912A (zh) * | 2016-04-29 | 2016-06-29 | 常熟市金成机械有限公司 | 一种生活垃圾破碎机自动开门装置 |
GB2579359A (en) * | 2018-11-28 | 2020-06-24 | Terex Gb Ltd | Impact crusher |
CN112221561A (zh) * | 2020-09-24 | 2021-01-15 | 南京茂辉环保技术开发有限公司 | 一种高炉炼铁炉渣处理方法 |
Families Citing this family (14)
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 |
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 |
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 |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3768743A (en) * | 1970-11-02 | 1973-10-30 | Hartzerkleinerungs U Zement Ma | Impact comminutor |
EP0019541A1 (fr) * | 1979-05-17 | 1980-11-26 | APPAREILS DRAGON, Société Anonyme | Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion |
DE19511097C1 (de) * | 1995-03-25 | 1996-07-11 | Krupp Foerdertechnik Gmbh | Verfahren zur automatischen Einstellung des Mahlspaltes einer Zerkleinerungsmaschine und Zerkleinerungsmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
-
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
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3768743A (en) * | 1970-11-02 | 1973-10-30 | Hartzerkleinerungs U Zement Ma | Impact comminutor |
EP0019541A1 (fr) * | 1979-05-17 | 1980-11-26 | APPAREILS DRAGON, Société Anonyme | Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion |
DE19511097C1 (de) * | 1995-03-25 | 1996-07-11 | Krupp Foerdertechnik Gmbh | Verfahren zur automatischen Einstellung des Mahlspaltes einer Zerkleinerungsmaschine und Zerkleinerungsmaschine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105709912A (zh) * | 2016-04-29 | 2016-06-29 | 常熟市金成机械有限公司 | 一种生活垃圾破碎机自动开门装置 |
GB2579359A (en) * | 2018-11-28 | 2020-06-24 | Terex Gb Ltd | Impact crusher |
GB2579359B (en) * | 2018-11-28 | 2021-04-14 | Terex Gb Ltd | Rotor positioning device of an impact crusher |
CN112221561A (zh) * | 2020-09-24 | 2021-01-15 | 南京茂辉环保技术开发有限公司 | 一种高炉炼铁炉渣处理方法 |
Also Published As
Publication number | Publication date |
---|---|
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 |
EP1346774B1 (fr) | 2005-09-28 |
FR2837407B1 (fr) | 2004-05-28 |
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