EP0586531A1 - Poste de concassage dans un refroidisseur de clinker. - Google Patents

Poste de concassage dans un refroidisseur de clinker.

Info

Publication number
EP0586531A1
EP0586531A1 EP92912375A EP92912375A EP0586531A1 EP 0586531 A1 EP0586531 A1 EP 0586531A1 EP 92912375 A EP92912375 A EP 92912375A EP 92912375 A EP92912375 A EP 92912375A EP 0586531 A1 EP0586531 A1 EP 0586531A1
Authority
EP
European Patent Office
Prior art keywords
crusher
arrangement according
crushing
jaw
cooling
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
Application number
EP92912375A
Other languages
German (de)
English (en)
Other versions
EP0586531B1 (fr
Inventor
Hans-Peter Wellmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Claudius Peters AG
Original Assignee
Claudius Peters AG
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 Claudius Peters AG filed Critical Claudius Peters AG
Publication of EP0586531A1 publication Critical patent/EP0586531A1/fr
Application granted granted Critical
Publication of EP0586531B1 publication Critical patent/EP0586531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/10—Shape or construction of jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • 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

Definitions

  • the invention relates to a crusher arrangement for comminuting high-temperature fired material, in particular cement clinker, between a kiln and a cooler.
  • Jaw crushers which are known per se (EP-A-0 148 780, WO-A-85 03 887, SU-782 860), have not been used for hot goods, because they do not have such favorable conditions for hot operation . Rather, the surfaces of the crushing elements are in constant contact with the hot firing material, even when there is no pulse exchange. Since the crushing chamber is filled with crushed material, they are hardly accessible for cooling air to flow through.
  • a jaw crusher in the specified arrangement can have advantages over other types of crusher for the following reasons, while in those the crusher elements combine the thermal stress, in particular also the alternating temperature stress, at temperatures of 1000-1500 ° C. exposed to high specific impact stress with rubbing relative movement, there is practically no temperature change stress in the jaw crusher because both the heat transfer from the material and the cooling effect are virtually unchangeable over time, so that protective elements for the stress surfaces of the crushing jaws made of heat-resistant metal alloys or ceramic materials can be used.
  • jaw crushers can be cooled better in that their entire rear surface, that is to say an area which is as large as that involved in the crushing process Area available for the introduction of cooling capacity.
  • the increased thermal stress on the surfaces of the crushing jaws due to intensive contact with the material to be crushed can thus be effectively countered by installing cooling devices in the crushing jaws.
  • the specific impact stress which is determined in the case of rapidly rotating crusher types by the relative speed of the crushing elements and the mass of the items to be crushed, is low in the given application for jaw crushers, because the item has no significant hardness at the high temperature.
  • a jaw crusher is insensitive to the very irregular discharge of material from a rotary kiln over time. Its crushing chamber, which widens upwards in the shape of a funnel, can easily be made so large with regard to the crushing chamber size and jaw geometry that it can accommodate the greatest fluctuations in the grain size and the discharge quantity with which one has to reckon, even in normal furnace operation, without a Temporary storage (for example, feed hopper) that would tend to form bridges and cake under the difficult conditions is required.
  • the comminuted bulk material is discharged via the outlet gap located in the lower part of the crushing chamber, the width of which can be adjusted to a predetermined final grain size of the bulk material.
  • the portion of the product grain spectrum entering the crusher with a smaller grain diameter than the outlet gap width runs through the crushing space without being included in the comminution process, so that no additional fine grain is produced.
  • jaw crushers have a number of properties which are unexpectedly good for this application and which justify the inventive step of this selection. Because these apply even if the crusher is not cooled, the applicant reserves the right to claim protection even for uncooled crusher.
  • the crushing jaws are usually provided with cooling devices. These can be channels subjected to cooling air, which pass through the crushing jaws and open into the crushing chamber in order not only to cool the crushing jaws but in particular also the material to be crushed. This is expedient if the broken material tends to sinter or bake together.
  • the mouths of the cooling channels are not clogged by the material to be crushed, they expediently run descending under shingled protective elements, their mouths being protected under or behind the downward-facing end edge of the respective protective element from the material pressure which is essentially perpendicular to the jaw. If it is not necessary to cool the crushed material itself, internal cooling of the crushing jaws is sufficient, for example by means of coolant channels running parallel to the stress surface in the crushing jaws.
  • Adjustments that are installed in the cooling air supply and / or distribution channels can be used to adjust the local intensity of the jaw cooling and the air discharge into the crushing chamber.
  • the crusher is usually arranged in the channel between the furnace and cooler, which leads the material downwards and the hot air preheated by cooling upwards to the furnace as secondary air. Because of this double function, the crusher must not fill the entire channel cross-section. It is expediently arranged so that its movable crushing jaw is arranged on an outer side of the duct, while the fixed crushing jaw faces that duct cross-section which guides the hot air. This has the advantage that the drive elements for the movable crushing jaw can be located outside the hot area and are accessible for maintenance.
  • the devices for adjusting the outlet gap are usually provided on the crushing jaw which is stationary during operation. According to the invention, however, it can be provided that these are also assigned to the movable crushing jaw, in order to also be able to take advantage of the cooler arrangement for the adjusting devices.
  • the crusher gap should be adjustable so that it allows the flow of the unreduced Guts allowed. Furthermore, it can be provided that at least the movable jaw of the crusher, but preferably the entire crusher, can be moved out of the clinker discharge channel in order to open the channel cross section or to be able to carry out maintenance work on the crusher.
  • a shear bar is arranged at the lower end of a crushing jaw under the crusher outlet gap, which covers the discharge gap at a predetermined distance during the working stroke.
  • the crusher to be used within the scope of the arrangement according to the invention can be designed differently from conventional jaw crusher shapes, if nevertheless the typical function for this occurs.
  • the movable jaw can be formed by a rotatably mounted roller.
  • Fig. 1 shows a longitudinal section through the arrangement
  • FIG. 2-5 partial sections through a crushing jaw
  • Fig. 6 shows a partial section through the lower end of the crusher.
  • the discharge end of the rotary kiln 1 and the inlet of the cooler 4 are arranged one above the other and connected to one another by a duct which, on the one hand, through a partition 11 into the clinker discharge duct 5, through which the clinker falls from the furnace to the cooler, and on the other hand into a separate hot air duct ⁇ nal 15, through which the cooling air heated in the cooler by heat recovery of the clinker is led as secondary air (arrow 3) upwards to the furnace.
  • the crusher designated overall by reference number 6, which is a jaw crusher with a fixed crushing jaw 7, a movable crushing jaw 8 and an adjustable outlet gap 17.
  • Two walls delimit the crushing chamber 9 laterally.
  • the crushing space angle alpha between the crushing jaws widens in the upper area 10, the crushing jaw, strongly to accommodate large bulk goods and high amounts of material. Due to the specific properties of the hot material to be crushed, the angle of crushing space alpha in the inlet area can deviate from the usual version ⁇ .30 °.
  • the crushing chamber angle is reduced to a normal one Order of magnitude of approx. 15 °.
  • the crushing jaws can also be curved.
  • the crusher drive expediently combines — as is known — relative movements of the crushing jaws transversely to the direction of the crushing space and parallel to it in order to be able to exert both pressure and shear action on the material to be shredded.
  • the fixed crushing jaw 7 is supported in the partition 11 or part of the partition can also be designed as a fixed crushing jaw.
  • the movable crushing jaw 8 is movably suspended from brackets, which are shown schematically at 12 and are connected to drive and adjusting devices or contain such devices. At least the movable crushing jaw 8 with the associated parts, but preferably also the fixed crushing jaw 7, can be moved out through an opening provided in the wall 13 of the clinker discharge channel 5 in order to release the clinker discharge channel cross section or for maintenance and replacement.
  • Both crushing jaws and in particular also the partition 11 contain continuous channels 16 for guiding cooling air which, after cooling of the crushing jaws and partition, is discharged into the crushing chamber 9 via blow-out channels 21 (arrows 14) in order to cool the material to be crushed there and to sinter and cake together prevent.
  • the cooling air which is supplied evenly or pulsatingly, can be mixed with additional fresh air before entering the crushing chamber.
  • the local intensity of the crushing jaw cooling and the air injection into the crushing chamber is set via adjusting devices which are installed in the cooling air supply and / or distribution channels.
  • FIG. 2 shows schematically how such cooling air blow-out ducts 21 can be designed in order to intensively cool the stress areas of the crushing jaws on the one hand and on the other hand not to be exposed to the risk of clogging by the crushed material.
  • a crushing jaw 18 can be seen therein, which is covered on the side of the crushing space with protective elements 19 which have a scale arrangement. To be more precise, they do not run parallel, but diagonally downwards into the crushing chamber, so that their lower end faces 20 run transversely to the crushing chamber and are therefore not or less exposed to the crushing pressure. They form a transverse profile of the jaw surface that is favorable for the crushing process.
  • Blow-out channels 21, which pass through the crushing jaw 18, continue in grooves or gaps 22, which are formed by distance inserts, which are arranged between the surface of the crushing jaw 18 carrying the protective elements and the protective elements 19.
  • the grooves 22 can be worked into the surface of the crushing jaw 18 with a falling course or in the corresponding surface of the protective elements
  • blow-out channels 21 open into the end face 20 or behind it.
  • the cooling air is guided through the hollow interior of the protective elements 19 and blows through openings in the end face
  • FIG. 6 schematically shows the lower part of the crushing chamber 9 with the crusher outlet gap 17 and in particular the shear bar 23 which is non-positively connected to one of the two crushing jaws, for example the movable crushing jaw 8.
  • the movable crushing jaw 8 Taking vertical movement components of the movable crushing jaw 8 into account, it protrudes below the crusher outlet gap 17 by at least the distance 24, which corresponds to the maximum outlet gap width that can be set in the operating state, and preferably completely covers it projected cross section of the exit gap during the closing stroke of the movable crushing jaw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Crushing And Grinding (AREA)
  • Furnace Details (AREA)
  • Processing Of Solid Wastes (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

Un poste de concassage pour le broyage d'un produit cuit à haute température, en particulier de clinker de ciment, situé entre un four de cuisson (1) et un refroidisseur (4), est caractérisé par l'utilisation d'un concasseur à mâchoires (6). Il peut être muni de dispositifs de refroidissement débouchant dans la zone de concassage pour le refroidissement de la matière à traiter. Au moins la mâchoire de concassage mobile (8) est disposée de façon à être accessible sur un côté extérieur du canal de défournement du clinker (5).
EP92912375A 1991-06-05 1992-06-05 Poste de concassage dans un refroidisseur de clinker Expired - Lifetime EP0586531B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4118465 1991-06-05
DE4118465 1991-06-05
PCT/EP1992/001265 WO1992021441A1 (fr) 1991-06-05 1992-06-05 Poste de concassage dans un refroidisseur de clinker

Publications (2)

Publication Number Publication Date
EP0586531A1 true EP0586531A1 (fr) 1994-03-16
EP0586531B1 EP0586531B1 (fr) 1996-01-17

Family

ID=6433238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92912375A Expired - Lifetime EP0586531B1 (fr) 1991-06-05 1992-06-05 Poste de concassage dans un refroidisseur de clinker

Country Status (6)

Country Link
US (1) US5462237A (fr)
EP (1) EP0586531B1 (fr)
JP (1) JPH06508061A (fr)
AT (1) ATE133089T1 (fr)
DE (2) DE4124878A1 (fr)
WO (1) WO1992021441A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304458A1 (de) * 1993-02-15 1994-08-18 Zementanlagen Und Maschinenbau Vorrichtung zur Kühlung von heißem, körnigem Material
DE9304122U1 (de) * 1993-03-19 1994-07-28 Claudius Peters Ag, 21614 Buxtehude Anordnung zum Brechen und Kühlen des aus einem Brennofen austretenden Guts
US5791573A (en) * 1994-12-07 1998-08-11 Okuya; Yasuaki Crushing-breaking apparatus
EP0865825A1 (fr) * 1997-03-18 1998-09-23 Yasuaki Okuya Procédé et appareil pour le concassage-broyage de déversoirs longs et effilés, chenaux de coulée et autres déchets métalliques de moulage
US6827301B1 (en) 2001-07-31 2004-12-07 Patrick Copeland Crushing—breaking apparatus
AU2003224852A1 (en) * 2003-02-07 2004-09-06 King Machine And Tool Co. Improved disc mill assembly for pulverizing system
JP2015520025A (ja) 2012-06-08 2015-07-16 メッツォ ミネラルズ インクＭｅｔｓｏ Ｍｉｎｅｒａｌｓ， Ｉｎｃ． 鉱物材料の処理方法および処理プラント
CN103551234B (zh) * 2013-10-30 2015-05-20 中国科学院广州能源研究所 一种市政生活垃圾压榨破碎风选系统
WO2016060076A1 (fr) * 2014-10-14 2016-04-21 株式会社トクヤマ Fragment de silicium polycristallin, son procédé de fabrication, et dispositif de fracture d'un bloc de silicium polycristallin
NL2014209B1 (nl) * 2015-01-29 2017-01-27 Oijense Bovendijk B V Breekinrichting met afzuiging en werkwijze voor het breken van heterogene klompen materiaal.
CN106179569A (zh) * 2016-08-25 2016-12-07 安徽纽亚达科技有限责任公司 一种颚式破碎机
CN106402883A (zh) * 2016-11-19 2017-02-15 无锡大功机械制造有限公司 一种垃圾燃烧炉的粉碎进料装置
CN110614148B (zh) * 2019-09-23 2024-01-19 南京曼博都智能科技有限公司 一种破碎装置
CN111871491B (zh) * 2020-07-27 2021-09-10 于瀚学 一种畜牧业废弃物炭化处理设备
CN112295646B (zh) * 2020-10-30 2022-05-10 广东磊蒙重型机械制造有限公司 一种具有筛选功能的颚式破碎机及其使用方法
CN112892661B (zh) * 2021-01-19 2022-06-14 唐山市山岳重工机械制造有限公司 一种颚式破碎机
CN113856797B (zh) * 2021-09-22 2022-11-11 六安中科聚盆机械有限公司 一种颚式破碎设备

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Also Published As

Publication number Publication date
US5462237A (en) 1995-10-31
DE59205118D1 (de) 1996-02-29
DE4124878A1 (de) 1992-12-10
ATE133089T1 (de) 1996-02-15
EP0586531B1 (fr) 1996-01-17
JPH06508061A (ja) 1994-09-14
WO1992021441A1 (fr) 1992-12-10

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