EP3215272B1 - Procédé de fabrication de granulats séparés en fractions de différents tailles du grain - Google Patents

Procédé de fabrication de granulats séparés en fractions de différents tailles du grain Download PDF

Info

Publication number
EP3215272B1
EP3215272B1 EP15797608.5A EP15797608A EP3215272B1 EP 3215272 B1 EP3215272 B1 EP 3215272B1 EP 15797608 A EP15797608 A EP 15797608A EP 3215272 B1 EP3215272 B1 EP 3215272B1
Authority
EP
European Patent Office
Prior art keywords
rocks
aggregates
bed
comminution
crushing
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.)
Active
Application number
EP15797608.5A
Other languages
German (de)
English (en)
Other versions
EP3215272A1 (fr
Inventor
Viktor Marchuk
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.)
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions 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 ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3215272A1 publication Critical patent/EP3215272A1/fr
Application granted granted Critical
Publication of EP3215272B1 publication Critical patent/EP3215272B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • 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
    • 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating

Definitions

  • the invention relates to a process for the production of aggregates with isometric grain shapes separated into fractions of different grain sizes.
  • the invention further relates to a system suitable for carrying out such a method.
  • aggregate is a granular material that can be used for the production of concrete, asphalt or other base layers. Aggregates can be based on natural or broken shapes. In the latter, large rocks are industrially broken, thereby producing aggregates with the desired grain sizes.
  • crushed aggregates depending on the grain size, into fine aggregates, also referred to as "(crushing) sand", with a grain size of> 0.063 mm to 2 mm (asphalt application), 4 mm (concrete application) or 6.3 mm (other covering applications) and in coarse aggregates.
  • the coarse aggregates include split with a grain size above the corresponding upper limit for crushed sand and up to 32 mm, crushed stone with a grain size of> 32 mm to 64 mm and crap with a grain size> 64 mm. Further sub-fractions can be provided within these basic fractions.
  • Isometric aggregates can, among other things, have an advantageous effect on the processing properties and on the achievement of high final strengths in building materials. Compared to naturally shaped aggregates have broken aggregates to a relevant extent on fracture edges and surfaces.
  • Abrasive rocks e.g. quartzite, gabbro, granite, porphyry and similar hard rocks
  • jaw and cone crushers deliver comminution products with a high proportion of flat, elongated grains (cf. Stark, U .; Müller, A .: Effective methods for measuring grain size and shape.
  • Mineral Processing 45 (2004) No. 6 Around In order to obtain high-quality coarse aggregates, these anisotropic grains have to be sieved off. A significant proportion of the total processed rock is an inferior product in the form of flat, elongated grains in the fine and coarse range, which cannot be marketed or can only be marketed at low prices.
  • a vertical impact crusher In order to reduce the amount of inferior product, a vertical impact crusher is often used as a so-called "cubicizer” for the flat, elongated grains in order to obtain finished products with higher proportions of isometric grains. It is known that the impact crushing predominantly produces such isometric grains.
  • the additional device increases the specific energy consumption in the production of the aggregates.
  • several crushing stages (crushers) are necessary for the production of different fractions due to the relatively steep grain size distribution, which further increases energy consumption.
  • the parallel use of many shredding devices also increases the investment requirement.
  • the Tau plant from NorStone which is intended for the production of high-quality quartz diorite aggregates for road construction, consists, for example, of three cone crusher stages and an additional vertical impact crusher stage in a function as a cubic unit.
  • the third cone crusher stage contains a total of five cone crushers for different grain sizes of the aggregates to be produced.
  • a total of eight crushers are used in this system (see “Manufactured sand in concrete - effect of particle shape on workability"; COIN project report No. 34 (2011), SINTEF Building and Infrastructure, Norway ).
  • Horizontal impact crushers can be used to crush medium-hard rocks, such as limestone, dolomite, basalt, etc. They deliver shredding products with high cubicity and thus isometric grain shapes. Disadvantages of this horizontal impact crusher are high costs for wear materials and limited availability due to the maintenance that is required relatively often. For the production of crushed sand with isometric grain shapes, an additional vertical impact crusher is usually used as a cubic unit as a third or fourth crushing stage, which is followed by two to three crushers, which are required for the production of correspondingly small grain sizes. Disadvantages of such systems are a relatively high energy consumption (additional machines with peripherals) and a high proportion of rock powder after cubing, for which no further use is generally intended as a product and which consequently represents waste.
  • medium-hard rocks such as limestone, dolomite, basalt, etc. They deliver shredding products with high cubicity and thus isometric grain shapes. Disadvantages of this horizontal impact crusher are high costs for wear materials and limited availability due to the
  • a process for the production of crushed sand from moist rock material, for example from gravel washing, is known from the EP 1 681 392 A1 known.
  • the moist rock is first dried, then crushed in a jaw crusher and finally classified to separate the crushed sand fractions from fine grain.
  • the drying that takes place before the comminution is intended to prevent the coarse moisture initially adhering to the rock from being distributed to the freshly formed particle surfaces during the crushing process and binding the fine grain formed during the comminution.
  • material bed shredding is also known, in which the feed material is fed to the shredding device in such a way that it is in the shredding gap, for example the roll gap of a so-called bed or high-pressure roller mill Form of a material bed is present, which leads to the fact that the particles of the feed material are pressed against each other under high pressure and thereby crushed.
  • the comminution product emerging from the material bed roller mill is largely in the form of agglomerates (so-called "slugs”) which, however, disagglomerate with comparatively little energy expenditure to let.
  • the material bed shredding is fundamentally characterized by a high energy efficiency.
  • the WO 2010/072276 A1 discloses a method and a device for comminuting mineral regrind, in particular raw ore, in which the regrind is first comminuted in a first material bed roller mill, then subjected to a dry agglomeration and then pre-classified in a dryer fabric device, the coarse material originating from this pre-classification into the first Gutbettwalzenmühle is returned while the fine material is fed to a second Gutbettwalzenmühle.
  • the discharge from the second material bed roller mill is fed to a spiral classifier, which divides the discharge into fine and coarse material. This fine material is then fed directly to a sorting system, while the coarse material is further processed in various process steps and in particular crushed.
  • the DE 33 37 615 A1 describes a method and devices for comminuting and processing mineral raw materials, for example ores, in which the raw materials are broken up in a crusher and then fed to a material bed roller mill in order to further comminute them. The discharge from the material bed roller mill is further processed and partially crushed further by means of a mill. Overall, the process according to the DE 33 37 615 A1 only one finished product is generated in one fraction. So-called head sludge can be separated as part of the further processing of the discharge from the material bed roller mill, but they are discarded.
  • the DE 195 12 509 A1 discloses a process for comminuting ore material, which is pre-comminuted in an oxyacetylene mill and then separated into fine and coarse material in a classifying device, the coarse material then being fed to a material bed roller mill. The material originating from the material bed roller mill can then be further classified, it being provided that to recirculate corresponding coarse material in each case. As a result, only a fraction serving as finished goods is generated here.
  • the DE 37 19 251 A1 describes a process for the continuous pressure comminution of brittle regrind, for example from cement clinker to finished cement, in which the regrind is first fed to a first high-pressure roller press and immediately afterwards to a second high-pressure roller press. The material then passes into a deagglomerator and then into a classifier, the fine fraction emerging from it representing the finished product, while the coarse fraction is returned to the first high-pressure roller press.
  • the object of the invention was to provide a possibility of producing high-quality aggregates with isometric grain shapes from particularly hard and medium-hard rocks.
  • the greatest possible reduction in the dust (rock powder) produced during production, the lowest possible energy consumption for carrying out the process and the lowest possible wear on the system used for this purpose should be achieved.
  • the invention is based on the knowledge that when using the basically known material bed comminution, a comminution product with, on the one hand, a broad grain size distribution and, on the other hand, with a very high proportion (often around 98%) of isometric grain shapes both in the coarse and fine range are produced can. Since the material bed shredding is also different from shredding processes based on single grain shredding Characterized by a high energy efficiency, the basic idea of the invention is to use the material bed comminution advantageously for the production of aggregates with isometric grain shapes.
  • a method according to the invention which is used for the production of aggregates from rocks which are used as finished products and separated into fractions of different grain sizes, is characterized in that the rocks are initially broken up (in particular by means of individual size reduction), then at least partly further broken down by means of a material bed size reduction and thereon then classified to separate the different fractions of the aggregates. It is provided that a pressure of at most 7.5 MPa (75 bar), preferably of between 0.5 MPa and 5 MPa (5 bar and 50 bar) and particularly preferably of between 1 MPa and 3, is provided for the further crushing by means of the material bed comminution MPa (10 bar and 30 bar) is generated in the material bed.
  • This pressure range is sufficient to reliably achieve the desired breaking of the rocks, but at the same time not too high, thereby avoiding further damage to the aggregates, in particular cracks in the grains. It should be emphasized that this pressure range is significantly below the pressure generated in the known applications of material bed crushing for grinding, for example, cement or raw cement flour (over 50 MPa (500 bar) and generally between 100 MPa and 300 MPa (1000 bar and 3000 bar)) lies.
  • a system according to the invention which is suitable for carrying out such a method, comprises at least one crushing device (as a primary crusher), a material bed comminution device arranged downstream of the crushing device (with regard to the direction of transport of the material flow through the system), which is suitable for crushing by means of material bed comminution at a pressure of at most 7.5 MPa (75 bar) preferably of between 0.5 MPa and 5 MPa (5 bar and 50 bar) and particularly preferably of between 1 MPa and 3 MPa (10 bar and 30 bar) in the material bed, one sorting device downstream of the material bed comminution device and several the classifying device downstream storage places for the separate storage of the fractions of the aggregates.
  • the concretization of the aggregates as "finished products” means that they are not further processed (in particular further comminuted), at least within the scope of the method according to the invention or a method in which the method according to the invention represents a process section.
  • the finished product aggregates it is provided that no further processing is provided for the finished product aggregates, and consequently they can be used directly as, for example, aggregates for asphalt, concrete or similar building materials.
  • grain shapes which correspond to defined geometric specifications are regarded as "isometric".
  • grain shapes whose ratio of grain length (L) to grain thickness (E) according to DIN EN 933-4 is less than 3 (L / E ratio ⁇ 3) can be regarded as isometric.
  • the "grain length” represents the largest dimension of the respective grain, defined by the greatest distance from two planes lying parallel to each other tangentially to the grain surface
  • the "grain thickness” represents the smallest dimension of the respective grain, defined by the smallest distance of two in each case planes lying parallel to each other, tangential to the grain surface.
  • an L / E ratio ⁇ 3 can also be provided to define isometric grain shapes (only) for coarse aggregates with grain sizes> 2 mm,> 4 mm or> 6.3 mm to be provided, while fine stone coronations with grain sizes less than or equal to the selected limit value (exclusively or additionally) are defined as non-isometric with reference to a sphericity parameter.
  • the “grain size” is understood to be the greatest distance from two planes which are each tangent to the grain surface and are parallel to one another.
  • a material bed comminution device allows a flexible adaptation of the crushing parameters for several fractions of the comminution product to the specific material properties of the feed material and the desired product properties of the comminution product and to the material throughput by changing the grinding pressure, the roller speed and the grinding gap. For example, to produce fine aggregates, the pressure in the mill splitter can be increased. A change in the operating conditions can therefore be used to adapt and, in particular, dynamically change the grain distribution of the products.
  • Another advantage of the use of a material bed comminution according to the invention for further breaking of the rocks is the relatively low wear on the rollers or rollers of the material bed comminution device used for this purpose in comparison to the wear in the case of a single grain comminution in, for example, a jaw or cone crusher. This ensures a correspondingly long service life for the material bed comminution device and lower expenditure for spare parts.
  • the rocks are broken up by means of the material bed comminution and consequently no more crushing process follows the material bed comminution. This is due to the wide grain size distribution and the high Share (often around 98%) of isometric grain shapes in the comminution product of the material bed comminution is made possible. Further processing subsequent to the comminution of the material bed, and in particular further crushing, is therefore generally not required for the use of the aggregates as finished products.
  • the rocks up to a rock size (greatest distance from two planes which are respectively tangential to the rock surface and parallel to one another) of at most 400 mm, preferably between 50 mm and 350 mm and particularly preferably between 100 mm and 200 mm are pre-broken.
  • This can represent an advantageous size range for the rocks serving as feed material for the comminution of the bed. In particular, this allows the rocks to be broken further in a single comminution pass as part of the material bed comminution up to the maximum grain sizes provided for the finished product aggregates.
  • the maximum grain size provided can be, for example, approximately 32 mm.
  • a first of the at least two fractions of the aggregates can preferably comprise grains with a maximum grain size of 4 mm, while a second of the fractions can comprise grains with a grain size of> 4 mm to preferably approximately 32 mm.
  • the production of further fractions, in particular sub-fractions, within the two previously defined (main) fractions is possible within the scope of the method according to the invention.
  • the system according to the invention can comprise a deagglomeration device, for example in the form of a drum deagglomerator that is known in principle.
  • the Classifying device and the deagglomeration device can also be integrally formed.
  • moving sieve devices are suitable for both deagglomeration and classification.
  • the rocks are dried, in particular when crushing further by means of material bed comminution.
  • the system according to the invention can comprise a drying device.
  • the system according to the invention can comprise a corresponding washing device for washing.
  • the washing device as a washing drum which is known in principle, the preferably provided process steps of deagglomeration and washing can advantageously be carried out simultaneously and / or in a single device.
  • the feed material for the material bed comminution may contain constituents which advantageously should not yet be processed or should no longer be processed as part of the material bed comminution.
  • These constituents can in particular be rocks whose rock sizes are still above a defined maximum value for the feed material for comminution of the bed.
  • these constituents can be grains whose grain size is already smaller than the maximum grain size provided for the finished products and which may also already have an isometric grain shape.
  • the pre-broken rocks are pre-classified in the material bed before further breaking, in order to filter out corresponding rocks or grains from the feed material for the material bed comminution. Rocks that have been filtered out can be broken up again in the crushing device.
  • Filtered out Grains can be used directly as a finished product, which means that the quantity of feed material can be reduced as much as possible, which can have a positive effect on the energy consumption in the context of material bed crushing.
  • the system according to the invention can comprise a corresponding pre-classifying device.
  • a material bed roller mill also called a high-pressure roller press
  • vertical roller mill can advantageously be used as the material bed comminution device of the system according to the invention.
  • the classifying device of the system according to the invention can preferably comprise a screening device and / or a classifier, in particular a vortex and / or cross-flow classifier.
  • the breaking device can furthermore preferably be designed as an impact crusher, jaw crusher, hammer crusher or cone crusher. Combinations of these can also be used in the case of several crushing devices.
  • the method according to the invention is advantageously for the production of aggregates in fractions with different grain sizes from natural mineral rocks, for example limestone, dolomite, basalt, quartzite, gabbro, granite, porphyry, and / or gravel, from slags from iron or steel production and / or made of old concrete.
  • natural mineral rocks for example limestone, dolomite, basalt, quartzite, gabbro, granite, porphyry, and / or gravel, from slags from iron or steel production and / or made of old concrete.
  • the 1 to 6 show in diagrams results of tests in which pre-broken rocks made of quartzite, limestone and basalt were broken up separately in a material bed roller mill under different operating conditions to form aggregates.
  • Fig. 1 the flatness indicators of the respective fractions of the aggregates of quartzite, limestone and basalt, which comprise grain sizes between 4 mm and 16 mm, are shown.
  • the non-patterned bars in the diagrams indicate operation of the material bed roller mill with a circumferential speed of the rotating driven roller of approximately 0.2 m / s and a pressure in the material bed of approx. 1 MPa (10 bar), the hatched bars on the left a circumferential speed of approx. 0.2 m / s and a pressure of approx. 3 MPa (30 bar), the hatched bars on the circumferential speed of approx 0.2 m / s and a pressure of approx.
  • the grain shape indicators of different fractions of the aggregates of quartzite broken by the material bed roller press under the different operating conditions cf. Fig. 2
  • Limestone cf. Fig. 3
  • basalt cf. Fig. 4
  • the non-patterned bars in the diagrams indicate the respective mean values for the grain shape indicators from all associated fractions, the left-hatched bars the grain sizes of 4 mm to 8 mm fractions, the right-hatched bars the grain sizes of 8 mm to 16 mm and the fractions cross-hatched bars the grain sizes from 16 mm to 32 mm fractions.
  • the grain shape indicators were determined in accordance with DIN EN 933-4. It can be seen that the content of non-isometric grains in these aggregates is always (clearly) below 10% and thus far below the corresponding value for the associated feed material.
  • the Fig. 7 shows a schematic representation of a plant according to the invention for the production of aggregates serving as finished products in fractions of different grain sizes and the process carried out thereby.
  • Rocks that can come directly from a quarry are transported to a crushing device 2 by means of, for example, a truck 1.
  • the rocks are pre-crushed in the crushing device 2 in order to produce a feed material for a material bed comminution device 3 arranged downstream of the crushing device 2 (here in the form of a material bed roller mill).
  • a pre-classifying device 4 is arranged between the crushing device 2 and the material bed comminuting device 3, by means of which the comminuting product originating from the crushing device 2 is pre-classified (for example by means of a sieving process) in order to remove rocks whose rock sizes are above a defined limit value (for example 200 mm) to separate, whose rock sizes are below this limit (or correspond to this limit).
  • the relatively large rocks are then returned to the crushing device 2 in order to further reduce them, while the relatively small rocks are fed to the material bed crushing device 3 as feed material.
  • the rocks are broken further by means of the material bed comminution device 3, and aggregates with largely isometric grain shapes and different grain sizes are produced in the process.
  • the rocks are classified into a total of four fractions which differ by different grain size ranges.
  • the classifying device 5 can be designed as a multiple sieve device with a plurality of sieve layers arranged one above the other with a mesh size that decreases from top to bottom.
  • a first fraction of the aggregates remains in the top screen covering as the screen overflow, the grain sizes of which are still above a defined maximum value for the aggregates provided as finished products. This first fraction is returned to the material bed comminution device 3 in order to be broken up again.
  • a second fraction of the (coarse) aggregates remains in the middle screen covering as the screen overflow, the grain sizes of which lie within a first grain size range.
  • This first grain size range lies between the defined maximum value and a first mean value for the grain size.
  • This second fraction is stored as a first finished product from a coarse stone crown at a first storage location 6.
  • a third fraction of the aggregates remains in the lower sieve covering as the sieve overflow, the grain sizes of which lie within a second grain size range.
  • This second grain size range lies between the first mean value and a minimum value for the grain size of the coarse aggregates.
  • This third fraction is stored as a second finished product from a coarse aggregate at a second storage location 7.
  • a fourth fraction of the aggregates is obtained as the sieve passage of the entire multiple-sieve device.
  • This third fraction is stored as a finished product from a fine aggregate (crushed sand) at a third storage location 8.
  • breaking device 2 serving as a primary crusher for the material bed comminution device 3
  • several breaking devices 2 connected in series can also be provided. This allows in particular a gradual breaking of the rocks delivered from the quarry until the limit of the grain size provided for the feed material for the material bed comminution device 3 is reached.
  • a crushing device 2 first passed through by the rocks can be used as a jaw crusher, for example and an adjoining breaking device 2 can be designed, for example, as a cone crusher.
  • the in the Fig. 7 The system shown can optionally include further components (shown in dashed lines).
  • a deagglomeration device 9 can be arranged between the material bed comminution device 3 and the classifying device 5, by means of which agglomerations that arise during the product bed comminution are deagglomerated.
  • a washing device 10 can also be provided, for example likewise between the material bed comminution device 3 and the classifying device 5, by means of which rock powder can be washed out of the comminution product of the material bed comminution device 3.
  • the deagglomeration device 9 and the washing device 10 can also be integrally formed in one device (for example a washing drum).
  • a drying device can be provided, by means of which the rocks and / or aggregates are dried, for example during further breaking in the material bed comminution device. This can be done using hot air, for example.
  • the drying device can be integrated in the material bed comminution device 3.
  • a device 11 for removing buildup (eg mud) from the delivered rocks can also be connected upstream of the breaking device or devices 2.
  • This device 11 can be designed, for example, in the form of a coarse sieve.

Claims (15)

  1. Procédé de fabrication de granulats de roches servant de produits finis, séparés en fractions de tailles de grains différentes, à partir de roches, les roches étant tout d'abord soumises à un pré-concassage, puis au moins en partie à un concassage ultérieur au moyen d'un broyage à lit de matériau et ensuite à une classification, caractérisé en ce que, pour le concassage au moyen du broyage à lit de matériau, une pression d'au plus 7,5 MPa (75 bar) est générée dans le lit de matériau.
  2. Procédé selon la revendication 1, caractérisé en ce que les roches sont soumises à un concassage final au moyen du broyage à lit de matériau.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, pour le concassage au moyen du broyage à lit de matériau, une pression comprise entre 0,5 MPa et 5 MPa (5 bar et 50 bar) et de préférence entre 1 MPa et 3 MPa (10 bar et 30 bar) est générée dans le lit de matériau.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les roches sont soumises à un pré-concassage jusqu'à une taille d'au plus 400 mm, de préférence comprise entre 50 mm et 350 mm et de manière particulièrement préférée entre 100 mm et 200 mm.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les roches sont désagglomérées après le concassage ultérieur au moyen du broyage à lit de matériau et avant la classification.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les roches sont séchées lors du concassage ultérieur au moyen du broyage à lit de matériau.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une partie des roches et/ou des granulats de roches est lavée.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les roches soumises à un pré-concassage sont soumises à une préclassification avant le concassage ultérieur dans le lit de matériau.
  9. Unité pour la réalisation d'un procédé selon l'une quelconque des revendications précédentes, comprenant un dispositif de concassage (2), un dispositif de broyage à lit de matériau (3) en aval du dispositif de concassage (2), qui est conçu pour un concassage au moyen d'un broyage à lit de matériau à une pression d'au plus 7,5 MPa (75 bar) dans le lit de matériau, un dispositif de classification (5) en aval du dispositif de broyage à lit de matériau (3) et des emplacements de stockage (6, 7, 8) en aval du dispositif de classification (5) pour le stockage séparé des fractions des granulats de roches.
  10. Unité selon la revendication 9, caractérisée en ce que le dispositif de broyage à lit de matériau (3) est configuré sous la forme d'un moulin à cylindre à lit de matériau ou sous la forme d'un moulin à rouleau vertical.
  11. Unité selon la revendication 9 ou 10, caractérisée par un dispositif de désagglomération (9).
  12. Unité selon l'une quelconque des revendications 9 à 11, caractérisée par un dispositif de séchage.
  13. Unité selon l'une quelconque des revendications 9 à 12, caractérisée par un dispositif de lavage (10).
  14. Unité selon l'une quelconque des revendications 9 à 13, caractérisée par un dispositif de préclassification (4).
  15. Utilisation d'un procédé selon l'une quelconque des revendications 1 à 8 et/ou d'une unité selon l'une quelconque des revendications 9 à 14 pour la fabrication de granulats de roches séparés en fractions de tailles de grains différentes à partir de roches minérales naturelles, à partir de scories issues de la production de fer ou d'acier et/ou à partir de vieux béton.
EP15797608.5A 2014-11-03 2015-10-29 Procédé de fabrication de granulats séparés en fractions de différents tailles du grain Active EP3215272B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014115975.6A DE102014115975A1 (de) 2014-11-03 2014-11-03 Verfahren zur Herstellung von in Fraktionen unterschiedlicher Korngrößen separierten Gesteinskörnungen
PCT/EP2015/075104 WO2016071197A1 (fr) 2014-11-03 2015-10-29 Procédé de production de granulats de roches séparés en fractions de grosseurs de grains différentes

Publications (2)

Publication Number Publication Date
EP3215272A1 EP3215272A1 (fr) 2017-09-13
EP3215272B1 true EP3215272B1 (fr) 2020-05-27

Family

ID=54608487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15797608.5A Active EP3215272B1 (fr) 2014-11-03 2015-10-29 Procédé de fabrication de granulats séparés en fractions de différents tailles du grain

Country Status (4)

Country Link
EP (1) EP3215272B1 (fr)
DE (1) DE102014115975A1 (fr)
DK (1) DK3215272T3 (fr)
WO (1) WO2016071197A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107890942A (zh) * 2017-11-16 2018-04-10 徐继传 一种矿石粉碎装置
CN110124836B (zh) * 2019-05-24 2021-04-27 赣州嘉通新材料有限公司 一种提取高含量稀土的新型工艺
WO2023031076A1 (fr) * 2021-09-03 2023-03-09 Thyssenkrupp Industrial Solutions Ag Appareil et procédé de traitement de béton ancien
BE1029729B1 (de) * 2021-09-03 2023-04-03 Thyssenkrupp Ind Solutions Ag Vorrichtung und Verfahren zur Aufbereitung von Altbeton

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719251A1 (de) * 1987-06-10 1988-12-22 Kloeckner Humboldt Deutz Ag Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD123432A1 (fr) * 1975-12-10 1976-12-20
DE3337615A1 (de) * 1983-10-15 1985-04-25 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur zerkleinerung, mahlung und aufbereitung gruben- oder naturfeuchter mineralischer rohstoffe wie erze oder dergleichen
DE19512509B4 (de) * 1995-04-04 2009-07-30 Polysius Ag Verfahren zur Zerkleinerung von Erzmaterial
DE19738228A1 (de) * 1997-09-02 1999-03-04 Kloeckner Humboldt Wedag Verfahren zur Kreislaufmahlung spröden Mahlgutes und Mahlanlage hierzu
US5992774A (en) * 1998-03-16 1999-11-30 Insun Company, Ltd. Method and system for recycling construction waste articles
DE10336801B4 (de) * 2003-08-11 2015-02-12 Thyssenkrupp Industrial Solutions Ag Verfahren und Anlage zur Mahlung von Eisenerz bzw. Eisenerzkonzentrat
EP1681392A1 (fr) 2005-01-17 2006-07-19 Hochschule Rapperswil Fabrication de sable sans des grains de granulometrie très fine
WO2010072276A1 (fr) * 2008-12-23 2010-07-01 Maschinenfabrik Köppern Gmbh & Co. Kg Procédé et dispositif pour désagréger de la matière minérale à broyer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719251A1 (de) * 1987-06-10 1988-12-22 Kloeckner Humboldt Deutz Ag Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes

Also Published As

Publication number Publication date
DK3215272T3 (da) 2020-08-31
DE102014115975A1 (de) 2016-05-19
EP3215272A1 (fr) 2017-09-13
WO2016071197A1 (fr) 2016-05-12

Similar Documents

Publication Publication Date Title
DE3302176C2 (fr)
EP0603481B1 (fr) Procédé et installation pour le broyage de matière à moudre
EP3215272B1 (fr) Procédé de fabrication de granulats séparés en fractions de différents tailles du grain
DE19512509A1 (de) Verfahren zur Zerkleinerung von Erzmaterial
DE102018120331B3 (de) Zuschlagstoff für Beton und Verwendung von Beton-Recyclat als Zuschlagstoff für Beton
WO2010072276A1 (fr) Procédé et dispositif pour désagréger de la matière minérale à broyer
WO2017178362A1 (fr) Utilisation de sable du désert traité comme granulat pour béton
DE2427070A1 (de) Verfahren und anlage zum herstellen von gummimehlen und/oder gummigranulaten aus reifen von fahrzeugen
DE102013020888A1 (de) Kreislaufmahlanlage mit Vorsichter und Kugelmühle
EP0406591B1 (fr) Procédé et installation de broyage de matière à broyer
EP3954463A1 (fr) Système et procédé de tri gravimétrique d'un mélange de matières
WO2015051925A1 (fr) Procédé et dispositif de traitement et de séparation d'un matériau à partir d'un système contenant plusieurs substances liées
EP3074137B1 (fr) Procédé de fabrication de ciment
DE4303987A1 (de) Mahlverfahren und zugehörige Mahlanlage
DE102013110881B4 (de) Zerkleinerungsanlage und Verfahren zur Erzeugung eines Feinerzproduktes
EP0366759B1 (fr) Procede pour broyer des matieres friables
EP2407244B1 (fr) Procédé de broyage de matière à l'aide d'un broyeur tubulaire
BE1029729B1 (de) Vorrichtung und Verfahren zur Aufbereitung von Altbeton
DE4023624A1 (de) Rohrkugelmuehlen zur effektiven desagglomeration und zerkleinerung von hochdruckzerkleinertem sproeden material
WO2023031076A1 (fr) Appareil et procédé de traitement de béton ancien
DE102021209729A1 (de) Vorrichtung und Verfahren zur Aufbereitung von Altbeton
EP0901828A1 (fr) Procédé et installation de broyage en circuit fermé de matériau friable
DE3919416C2 (de) Anlage zur Zerkleinerung bzw. Mahlung wenigstens zweier unterschiedlich mahlbarer spröder Gutmaterialkomponenten
DE3704974A1 (de) Verfahren und vorrichtung zur beeinflussung des fertigproduktes bei der zerkleinerung in waelzmuehlen
DE102022003499A1 (de) Verfahren zur Reduzierung des spezifischen Energieverbrauchs bei der Zerkleinerung von Material durch Kombination von Gutbettmahlung und Strahlmahlung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170413

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180531

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

Owner name: THYSSENKRUPP AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200225

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015012680

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1273988

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200615

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20200825

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200827

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200828

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200927

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015012680

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20201029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201029

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201029

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201029

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1273988

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200527

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015012680

Country of ref document: DE

Owner name: THYSSENKRUPP POLYSIUS GMBH, DE

Free format text: FORMER OWNERS: THYSSENKRUPP AG, 45143 ESSEN, DE; THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, 45143 ESSEN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015012680

Country of ref document: DE

Owner name: THYSSENKRUPP AG, DE

Free format text: FORMER OWNERS: THYSSENKRUPP AG, 45143 ESSEN, DE; THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, 45143 ESSEN, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231019

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20231020

Year of fee payment: 9

Ref country code: DK

Payment date: 20231024

Year of fee payment: 9

Ref country code: DE

Payment date: 20231020

Year of fee payment: 9