WO2008129384A1 - Système de broyage - Google Patents

Système de broyage Download PDF

Info

Publication number
WO2008129384A1
WO2008129384A1 PCT/IB2008/000916 IB2008000916W WO2008129384A1 WO 2008129384 A1 WO2008129384 A1 WO 2008129384A1 IB 2008000916 W IB2008000916 W IB 2008000916W WO 2008129384 A1 WO2008129384 A1 WO 2008129384A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding
materials
grinding chamber
chamber
ground
Prior art date
Application number
PCT/IB2008/000916
Other languages
English (en)
Inventor
Fausto Tarozzi
Original Assignee
Siti-B & T Group S.P.A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siti-B & T Group S.P.A. filed Critical Siti-B & T Group S.P.A.
Priority to EP08737447A priority Critical patent/EP2155396A1/fr
Publication of WO2008129384A1 publication Critical patent/WO2008129384A1/fr

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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/007—Disintegrating plant with or without drying of the material using a combination of two or more drum or tube mills
    • 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
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices

Definitions

  • the invention refers to a grinding system, suitable for grinding raw materials for producing ceramic products. STATE OF THE ART.
  • a first procedure comprises the discontinuous grinding of the materials and a second procedure comprises their continuous grinding.
  • the materials to be ground are introduced into grinding apparatuses which are loaded after being stopped and, after the completion of the grinding operating cycle, they are again stopped to be unloaded and again loaded with another quantity.
  • the materials are introduced continuously into the grinding apparatuses through loading openings obtained at one end, without these having to be stopped, and the ground materials are unloaded, again continuously, from an unloading opening opposite that of loading, and obtained at one opposite end with respect to the previous one.
  • a known grinding apparatus is composed of a substantially cylindrical body which is supported by a frame with its longitudinal axis substantially horizontal.
  • some grinding bodies are also arranged composed essentially of balls of very hard material of different diameters and which grind the materials first of all with very coarse grain size and then more and more finely, as the materials move closer to the unloading opening, from where they exit by overflowing.
  • the cylindrical body has rotary movement around its own longitudinal axis and inside defines one or more grinding chambers having on the walls ribs that are shaped so as to increase the lifting and falling angle of the grinding bodies during the rotation of the cylindrical body, if necessary also making a selection of the grain size of the ground materials.
  • the grinding bodies are also inserted which have preset dimensions, according to the grain size to be obtained and according to the grinding times required to obtain these grain sizes.
  • the grinding chambers can also have different diameters the one from the other and can rotate with different angular speeds, because the grinding is also function of the angular speeds with which the grinding chambers rotate.
  • a continuous grinding system comprising two adjacent grinding chambers of different diameter and which are linked together is known by the Italian patent no.
  • the material to be ground is introduced through an introductory opening provided at one end of a first grinding chamber that turns continuously and which is of smaller diameter, in which are also introduced some grinding bodies of large dimensions, provided to obtain a first coarse grinding of the raw materials.
  • a first drawback is that it is not possible to equip the grinding chambers with rotation speeds independent from each other.
  • a continuous grinding system that comprises two separate grinding chambers each with independent motorisation is known by Italian patent no. RE2003A000013, registered in the name of the company Sacmi - Cooperativa Meccanici Imola - Soc.
  • the two chambers have independent motorisations that allow each of these to turn at a different rotation speed. Furthermore, the first chamber has a feed opening through which the materials to be ground are continuously introduced during the rotation, while the second chamber has an opposite unloading opening through which the ground materials are unloaded by overflowing.
  • a duct is provided, through which the materials ground in the first grinding chamber pass into the second grinding chamber without the rotary movement of either stopping.
  • This duct is placed coaxially to both the chambers and has a much smaller diameter than these, so as to create an entry and an exit threshold substantially close to the centres of the two chambers.
  • the ground materials pass into the duct by overflowing from the first grinding chamber and fall inside the second grinding chamber.
  • the latter also has a separate loading device which also permits introducing further grinding bodies or additive substances that favour the grinding of the latter parallel to the connection duct connecting the two chambers and which allows the materials to pass from the first chamber into the second chamber.
  • This type of grinding system also has some drawbacks.
  • a first drawback is that if a fault occurs in the first grinding chamber, the grinding cycle must be completely interrupted because the second grinding chamber can only be fed with the already-ground materials coming from the first chamber.
  • Another drawback is that the two grinding chambers must be arranged one after the other and this arrangement restricts the possibility of the grinding system adapting to small spaces which could, alternatively, require the two grinding chambers to be arranged side by side.
  • Another drawback is that it is not possible, even though required by the product production cycle, to completely or partially remove the materials from the first grinding chamber without first having them pass into the second grinding chamber and therefore through the unloading opening of the latter.
  • Another object of the invention is to make a grinding system, in the specific case a continuous grinding system, that allows being arranged according to various space requirements.
  • a further object of the invention is to make a grinding system that also allows taking ground materials between one grinding chamber and the next.
  • Another object of the invention is to make a grinding system that allows curbing initial purchase costs and which can be extended at a later time in accordance with growing quantities of work to be done.
  • a further object of the invention is to make a grinding system with low purchase and maintenance costs.
  • a grinding system comprising: at least a first and a second grinding chambers arranged in operating succession separate and independent the one from the other and a feeding device of materials to be ground in at least said first grinding chamber, characterized by the fact that between said first and said second grinding chambers is positioned a collection device for collecting the ground materials in said first grinding chamber.
  • a continuous grinding method is provided comprising: grinding quantities of materials to be ground in a first grinding chamber obtaining first grinding materials; extracting said quantities of first grinding materials from said first grinding chamber; sending said quantities of first grinding materials towards other processing and/or utilisation stations, characterized by the fact that between said extracting and said sending is comprised to collect said quantities of first grinding materials in collection means.
  • Figure 1 is a side schematic view of a grinding system in a simplified embodiment
  • Figure 2 is a view on an enlarged scale of a grinding apparatus comprised in the system of Figure 1 ;
  • Figure 3 is a possible embodiment of a grinding system having three separate grinding chambers, which might also be higher in number, placed in sequence substantially coaxial between them;
  • Figure 4 is a possible alternative embodiment of the system of Figure 3 with three grinding chambers arranged side by side with parallel longitudinal axis.
  • a grinding system comprising a first grinding apparatus 2 and a second grinding apparatus 3 which are arranged one after the other, substantially coaxial, and which have rotating motorisation units 4 and 5, the one independent from the other.
  • Each of the grinding apparatuses 1 or 2 comprises a drum 6 or 7 with rotation axis "A" either horizontal or substantially horizontal which is supported by its own support frame 8 and 9.
  • each first drum 6 or second drum 7 a grinding chamber is defined, a first grinding chamber 10 and a second grinding chamber 11 respectively.
  • the inner chamber of each drum in this case e.g. the first chamber 10 of the first drum 6, has on the inner wall a series of ribs in relief 13 which, normally, have a helical pattern, or substantially such, and which while the first drum 6 (or 7) rotates, carries the loose material, partially or completely ground, contained in the grinding chamber 10 from an entry end of this, marked 106, to an opposite exit end, marked 206, close to which is a threshold diaphragm 306.
  • the first drum 6 turns at a rotation speed "O 1 " while the second drum 7 turns at a rotation speed " ⁇ 2 " which is normally different from the previous one.
  • each first drum 6 or second drum 7 are closed by side walls that have, at the centre, coaxial openings 17 and 18 through which the materials can be introduced into the grinding chamber 10 (or 11) and exit from this by overflowing when the level of these materials inside the grinding chamber 10 (or 11) exceeds the threshold of the diaphragm 306 located near the opening 18.
  • a container 19 is arranged that is designed to collect the materials that exit from the first grinding chamber 10 after undergoing a first grinding operation.
  • the container 19 is connected to the exit opening 18 of the first drum 6 by means of a segment of pipe 20 while a further segment of pipe 21 connects the container 19 to the entry opening 17 of the second drum 7; on this second segment of pipe 21 is also fitted a pump 22 that allows conveying the material collected in the container 19 and which has already undergone a first grinding operation inside the second grinding chamber 11.
  • the container 19 permits accessing the material that has undergone a first grinding operation before this is introduced into the second grinding chamber, so as to send it, when required by the product production cycles, in this case ceramic tiles, to other processing or utilisation stations that are different to the second grinding chamber 11.
  • the material to be ground is introduced into the first grinding chamber 10 through the opening 17 into which runs an unloading end of a conveyor 23 into which unloads a hopper 24 for storing this material.
  • the grinding system 1 comprises a third grinding apparatus 27 completely identical to the first grinding apparatus 2 and to the second grinding apparatus 3.
  • each drum can, if necessary, be disengaged from operation without this completely interrupting the grinding cycle.
  • either the first drum 6 can be directly connected to the further container 31 or, alternatively, the third drum 28 can be directly connected to the container 19 by means of the respective pipe segments suitably extended, maintaining grinding operations active for all the time required to repair the second drum 7.
  • the grinding system 1 comprises another three grinding apparatuses which have been described previously, but which are arranged with the rotation axes "Al" of the first drum 6, "A2" of the second drum 7 and "A3" of the third drum 28 parallel instead of coaxial.
  • the hopper 24 unloads the material to be ground onto a conveyor belt 35 which has conveying directions reversible according to need and which can unload the conveyed materials both onto the conveyor 23 and onto a further conveyor 123 fitted, e.g., at the entry opening 17 of the second drum 7 or onto the same conveyor 23 moved from the entry opening 17 of the first drum 6 to the corresponding entry opening 17 of the second drum 7.
  • the hopper 24 can indifferently supply, in a direct way, both the first drum 6 and the second drum 7.
  • the grinding can continue with the first drum 6 and the third drum 28 by connecting the latter to the container 19, extending the segment of pipe 21 as shown in the Figure 4 with the broken lines 121. If a fault occurs in the first drum 6, the conveyor directly supplies the second drum 7 and this continues grinding together with the third drum 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

La présente invention concerne un système de broyage comportant au moins des première et seconde enceintes de broyage (10, 11) disposées et fonctionnant en succession de manière séparée et indépendante l'une de l'autre, et un dispositif d'alimentation (23, 24) de matières à broyer dans ladite première enceinte de broyage (10), un dispositif de recueil (19) étant positionné entre lesdites première et seconde enceintes de broyage (10, 11) pour recueillir les matières broyées dans ladite première enceinte de broyage (10).
PCT/IB2008/000916 2007-04-19 2008-04-15 Système de broyage WO2008129384A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08737447A EP2155396A1 (fr) 2007-04-19 2008-04-15 Système de broyage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO20070138 ITMO20070138A1 (it) 2007-04-19 2007-04-19 "impianto di macinazione"
ITMO2007A0000138 2007-04-19

Publications (1)

Publication Number Publication Date
WO2008129384A1 true WO2008129384A1 (fr) 2008-10-30

Family

ID=39666033

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000916 WO2008129384A1 (fr) 2007-04-19 2008-04-15 Système de broyage

Country Status (3)

Country Link
EP (1) EP2155396A1 (fr)
IT (1) ITMO20070138A1 (fr)
WO (1) WO2008129384A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20080244A1 (it) * 2008-09-24 2010-03-25 Siti B & T Group S P A Impianto di macinazione
WO2011035451A3 (fr) * 2009-09-23 2011-07-14 Hamza Delic Mesic Ensemble de broyeurs pulvérisateurs pour minerai raccordés entre eux
CN104258938A (zh) * 2014-10-18 2015-01-07 淄博唯能陶瓷有限公司 串联式连续球磨机及球磨方法
ITMO20130299A1 (it) * 2013-10-21 2015-04-22 Mario Dazzi Impianto di macinazione
CN111570065A (zh) * 2020-05-29 2020-08-25 济南大学 粉体制备研磨机
IT201900013395A1 (it) * 2019-07-31 2021-01-31 Certech S P A Con Socio Unico Impianto di macinazione

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102247912A (zh) * 2011-01-10 2011-11-23 朱海良 球磨机组自动卸料系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE259540C (fr) *
US4134553A (en) * 1976-11-02 1979-01-16 I.O.S. Industria Ossidi Sinterizzati S.R.L. Grinding apparatus
WO2006037842A1 (fr) * 2004-10-04 2006-04-13 Outokumpu Technology Oyj Procede de fragmentation de materiau
EP1690597A1 (fr) * 2005-02-11 2006-08-16 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de connexion entre les moulins en séries et continus d'une installation de fraisage
EP1690598A1 (fr) * 2005-02-11 2006-08-16 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de connexion entre les moulins en séries et continus d'une installation de fraisage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE259540C (fr) *
US4134553A (en) * 1976-11-02 1979-01-16 I.O.S. Industria Ossidi Sinterizzati S.R.L. Grinding apparatus
WO2006037842A1 (fr) * 2004-10-04 2006-04-13 Outokumpu Technology Oyj Procede de fragmentation de materiau
EP1690597A1 (fr) * 2005-02-11 2006-08-16 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de connexion entre les moulins en séries et continus d'une installation de fraisage
EP1690598A1 (fr) * 2005-02-11 2006-08-16 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de connexion entre les moulins en séries et continus d'une installation de fraisage

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20080244A1 (it) * 2008-09-24 2010-03-25 Siti B & T Group S P A Impianto di macinazione
WO2011035451A3 (fr) * 2009-09-23 2011-07-14 Hamza Delic Mesic Ensemble de broyeurs pulvérisateurs pour minerai raccordés entre eux
ITMO20130299A1 (it) * 2013-10-21 2015-04-22 Mario Dazzi Impianto di macinazione
WO2015059591A1 (fr) * 2013-10-21 2015-04-30 Dazzi Mario Usine de broyage
CN104258938A (zh) * 2014-10-18 2015-01-07 淄博唯能陶瓷有限公司 串联式连续球磨机及球磨方法
IT201900013395A1 (it) * 2019-07-31 2021-01-31 Certech S P A Con Socio Unico Impianto di macinazione
WO2021019489A1 (fr) * 2019-07-31 2021-02-04 Certech S.P.A. A Socio Unico Installation de broyage
CN114269478A (zh) * 2019-07-31 2022-04-01 塞泰克单一股东股份公司 研磨设备
US20220250084A1 (en) * 2019-07-31 2022-08-11 Certech S.P.A. A Socio Unico Grinding plant
CN111570065A (zh) * 2020-05-29 2020-08-25 济南大学 粉体制备研磨机

Also Published As

Publication number Publication date
EP2155396A1 (fr) 2010-02-24
ITMO20070138A1 (it) 2008-10-20

Similar Documents

Publication Publication Date Title
WO2008129384A1 (fr) Système de broyage
JP6984735B2 (ja) 洗浄装置及びバレル研磨システム
CN108555016A (zh) 履带式土壤改良修复一体机
US3345683A (en) Inclined-dish granulator and separator
KR101876270B1 (ko) 곡물분쇄혼합기
KR101910043B1 (ko) 레미콘 제조방법
KR101910039B1 (ko) 골재 성형이 가능한 배처 플랜트
CN101108371B (zh) 研磨设备中串联的连续研磨机之间的连接系统
CN104061789A (zh) 布料设备的布料方法
US9649637B2 (en) Device and method for processing materials
KR101268710B1 (ko) 수처리용 분체 저장공급장치
US3501101A (en) Mobile feed grinding and mixing and distributing apparatus
KR101101572B1 (ko) 가공사료 액상원료 드럼코팅 장치
CN213078380U (zh) 有机废水处理用自动加料装置
JP2001270378A (ja) ミキサ車の洗浄および荷積方法
KR101287876B1 (ko) 제철원료의 스윙 분배장치
CN207714080U (zh) 方便下料的冷料供应装置
CN209794187U (zh) 一种混凝土混料机组
KR101206152B1 (ko) 석재슬러지 선별장치
KR101246253B1 (ko) 이송호퍼용 이물질 제거장치
CN212558075U (zh) 应用于pvc塑料粒子生产的自动上料投料设备
CN219751084U (zh) 一种小麦清理机的上料组件
KR200216201Y1 (ko) 곡물이송장치
CN220294833U (zh) 一种玉米研磨机
CN221108528U (zh) 一种防阻塞的喂料机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08737447

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2008737447

Country of ref document: EP