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WO2024193846A1 - Système et procédé de production de granulés d'engrais - Google Patents

Système et procédé de production de granulés d'engrais Download PDF

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Publication number
WO2024193846A1
WO2024193846A1 PCT/EP2023/086571 EP2023086571W WO2024193846A1 WO 2024193846 A1 WO2024193846 A1 WO 2024193846A1 EP 2023086571 W EP2023086571 W EP 2023086571W WO 2024193846 A1 WO2024193846 A1 WO 2024193846A1
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WO
WIPO (PCT)
Prior art keywords
roller
roller mill
mills
mill
gap width
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.)
Pending
Application number
PCT/EP2023/086571
Other languages
German (de)
English (en)
Inventor
Felix HEINICKE
Fabian Horbert
Eckard Wackerbarth
Eggert De Weldige
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.)
Maschinenfabrik Koeppern GmbH and Co KG
Original Assignee
Maschinenfabrik Koeppern GmbH and Co KG
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
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Application filed by Maschinenfabrik Koeppern GmbH and Co KG filed Critical Maschinenfabrik Koeppern GmbH and Co KG
Priority to CN202380065759.5A priority Critical patent/CN119894597A/zh
Priority to IL323054A priority patent/IL323054A/en
Priority to AU2023437757A priority patent/AU2023437757A1/en
Publication of WO2024193846A1 publication Critical patent/WO2024193846A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers

Definitions

  • the invention relates to a system and a method for producing fertilizer granules from inorganic starting material.
  • the system has at least one compacting machine in which the inorganic starting material is compacted into a slug and consequently a slug is produced from the inorganic starting material.
  • a crushing device is arranged downstream of the compacting machine, which serves to pre-crush the slug, i.e. the slug is crushed or pre-crushed into slug pieces in the crushing device. These pre-crushed slug pieces are then crushed into granules of the desired size.
  • This type of fertilizer granulate production is also known as press granulation or compacting granulation.
  • the compacting machine is preferably designed as a roller press or high-pressure roller press, in which the starting material (inorganic substances) is pressed under high pressure and compacted in the process, so that the so-called slug (ie a flat, compacted strand of material) is created.
  • This process step is known as press agglomeration.
  • the slugs are pre-crushed in a mechanical crusher and then the granules of the desired grain size are produced from these slug pieces in further crushing units (e.g. in a two-roll mill), usually with the interposition of one or more classifications.
  • the press granulation described produces fertilizer granules with a defined grain size that can be handled perfectly.
  • the aim is usually to produce fertilizer granules with a grain size of 1 mm to 5 mm.
  • the inorganic substances used in the invention for the production of fertilizer granules can be, for example, mineral substances or substances obtained from the evaporation of salt water, e.g. chlorides or sulfates, in particular potassium sulfate or potassium chloride.
  • Complex fertilizers e.g. NPK fertilizers, are also included.
  • roller press In the processes and systems described, a distinction must be made between a roller press on the one hand and a two-roller mill on the other.
  • the starting material In the roller press, the starting material is compacted into the slug under high pressure and with relatively low peripheral speeds of the rollers.
  • the two-roller mill is used in a subsequent process step to crush the slug pieces that are produced from the slug after compaction, e.g. with the help of a roller crusher.
  • roller presses two-roller mills work with a relatively high peripheral speed and the material is scattered loosely as a veil of material into the roller gap.
  • the roller surfaces of the two-roller mills are provided with a profile, i.e. the roller surfaces are usually structured.
  • the crushing in a two-roller mill takes place between the grinding surfaces, which can certainly be structured, but without any specific effect of individual crushing elements on the particles to be crushed.
  • crushing therefore takes place (essentially) by impact and shear stress and in a mill (essentially) by pressure and shear stress.
  • a plant and a method of the type described above are described in DE 10 2020 131 638 A1.
  • the slugs are first crushed into slug pieces in a crusher and/or in a hammer mill and these slug pieces are then fed to the two-roll mill, if necessary with an intermediate classification.
  • the surfaces of the grinding rollers of the two-roll mill are cooled during operation.
  • the two-roll mill therefore serves as the "last" crushing unit for producing the end product with the desired grain size, since the grain size in the two-roll mill can be easily adjusted using the variable gap width.
  • EP 3 801 909 B1 discloses a mill system with several mills for the industrial production of milled products.
  • several pairs of rollers can be arranged one below the other and, moreover, several processing lines can be implemented parallel to one another. The focus is on grinding grain.
  • DE 16 67 147 B1 describes the granulation of fine-grained materials by pressing with roller presses and the subsequent comminution by means of impact or hammer mills as well as the classification by means of classification devices.
  • the invention is based on the object of creating a plant with which high-quality fertilizer granules can be produced in an economical manner.
  • a corresponding method is to be specified.
  • the invention teaches a system with the features of patent claim 1 and a method with the features of patent claim 9.
  • a compacting machine e.g. a high-pressure roller press
  • a compacting machine e.g. a high-pressure roller press
  • the two-roller mills each have two rotatingly driven grinding rollers, the roller surfaces of which are provided with a profile and between which a roller gap with a (preferably adjustable) gap width is formed, wherein the flake pieces can be fed successively to the two-roller mills arranged one behind the other for comminution into granules and wherein the gap widths of the two-roller mills are differently dimensioned or differently adjusted and decrease in the direction of production from two-roller mill to two-roller mill.
  • the plant can have at least one first two-roller mill arranged downstream of the crushing device and one second two-roller mill arranged downstream of the first two-roller mill, wherein the gap width of the second two-roller mill is smaller in dimension or is set smaller than the gap width of the first two-roller mill.
  • a system with, for example, three two-roller mills or at least three two-roller mills can be implemented, with a third two-roller mill arranged downstream of the second two-roller mill, with the gap width of the third two-roller mill being smaller or set smaller than the gap width of the second two-roller mill.
  • embodiments with more than three two-roller mills, e.g. with four two-roller mills or more, are also feasible.
  • the invention is based on the finding that the use of two-roll mills in the production of fertilizer granulate has proven to be excellent, since the design and functioning of the two-roller mills basically enables high-quality fertilizer granulate to be produced.
  • the two-roller mill is not only used - as is usual in the prior art - as the last shredding unit for producing the end product, i.e. not only is a two-roller mill used in the last process step, the gap width of which is set to the dimensions of the end product, but according to the invention several two-roller mills, e.g. two or three two-roller mills, are connected in series, so that e.g.
  • the first two-roller mill is used as a pre-shredding unit for the flakes, i.e. the flakes emerging from the crushing device are not pre-shredded in other or further crushing units before they hit the two-roller mill, but with the help of the two-roller mills on the one hand there is further pre-shredding of the flakes emerging from the crushing device and on the other hand the end product is produced with the two-roller mill arranged last in the cascade.
  • the gap widths of the two-roller mills can be adjusted very well, so that, for example, a first two-roller mill is realized or set with a relatively large gap, while the downstream and possibly last two-roller mill is set with a (significantly) smaller gap, which is preferably adapted to the dimensions of the end product.
  • the two-roller mills are arranged as a cascade directly one after the other, e.g. directly one below the other, so that the material from the first two-roller mill directly hits the second two-roller mill and, if necessary, a third two-roller mill, so that the end product emerges from the last two-roller mill, e.g. the second two-roller mill or the third two-roller mill.
  • the plant is additionally equipped with classifying devices, e.g. screening devices.
  • the invention thus optionally proposes that at least one classifying device, e.g. a screening device, is arranged between the crushing device and the two-roller mill arranged downstream of the crushing device, e.g.
  • the first two-roller mill and/or between two two-roller mills arranged one behind the other, e.g. between the first two-roller mill and the second two-roller mill and/or between the second two-roller mill and the third two-roller mill.
  • the system is particularly advantageous to design the system as a circulating grain compacting and granulating system in which the two-roller mills and one or more classifying devices are arranged in such a way that the flakes pass through the two-roller mills and the screening devices in succession in the circuit.
  • Examples of such a circulating compacting and granulating system are shown and explained in the description of the figures.
  • the screening devices By using the screening devices, the two-roller mills with the different gap widths can be operated particularly effectively, because with the help of the screening devices it is possible to ensure that the material with the appropriate size is fed into the respective two-roller mill in a targeted manner, so that a two-roller mill with, for example, a relatively small gap is not loaded with material of a larger size.
  • the slug pieces emerging from the slug crusher are preferably crushed exclusively with the several two-roller mills arranged one behind the other, so that particularly effective granulation is achieved on the basis of two-roller mills with adjustable gap widths. Reference is also made to the description of the figures.
  • the specific design and construction of the two-roller mills can generally be based on the findings from the state of the art.
  • the two-roller mills are preferably equipped with two counter-rotating grinding rollers, the surfaces of which have a corrugation formed by a large number of channel-shaped depressions and projections that extend across the width of the roller and are oriented, for example, parallel or diagonally to the roller axis or spirally or arcuately. It is possible to provide the two rollers with differently designed corrugations, whereby a spiral or arcuate design is usually only provided on one of the rollers.
  • the roller gaps of the two-roll mill can each be dimensioned to a gap width in the range of 0.5 mm to 30 mm, e.g. 0.5 mm to 15 mm, and can be specifically adjusted to the desired gap width depending on the system design.
  • Two-roller mills can also be used, the grinding rollers of which are equipped with cooling devices for cooling the roller surfaces.
  • two-roller mills known from DE 10 2020 131 638 A1 can be used.
  • the invention relates not only to the system described, but also to a method for producing fertilizer granules from inorganic starting material, preferably with a system of the type described.
  • the starting material is compacted into a slug in a compacting machine and the slug is pre-crushed into slug pieces in a crushing device.
  • the slug pieces are crushed into granules in at least two two-roll mills arranged one behind the other, wherein the two-roll mills arranged one behind the other are dimensioned or set with different gap widths and the gap widths decrease from two-roll mill to two-roll mill, so that the material successively passes through several two-roll mills with a smaller roller gap.
  • the last two-roll mill arranged in the cascade is preferably set to the dimensions of the granules to be produced.
  • the shredding of the slug pieces that emerge from the crushing device is then carried out exclusively in the several two-roll mills, without the shredding pieces being shredded in other shredding units upstream or downstream (such as impact mills, hammer mills or the like). Consequently, it is preferred to dispense with shredding units other than two-roll mills downstream of the slug crusher, so that the invention in a preferred embodiment exclusively uses the advantages of the two-roll mills.
  • additional classifying devices can be provided, ie between the crushing device and the crushing device.
  • the slug pieces are preferably classified in a downstream two-roller mill and/or between two two-roller mills arranged one behind the other, e.g. with one or more screening devices.
  • the screening devices can use designs known from the prior art, e.g. screening devices with one screen deck and/or screening devices with two, three or more screen decks, so that classification into two or more fractions can take place in the screening devices.
  • the two-roll mills which are of particular importance in the context of the invention, are preferably operated with peripheral speeds of at least 5 m/s, for example 5 to 30 m/s or 5 to 25 m/s, preferably 6 to 20 m/s or optionally 6 to 15 m/s.
  • the surfaces of the grinding rollers can be cooled during operation.
  • the grinding rollers can have a diameter of 200 mm to 1000 mm, preferably 400 mm to 800 mm, for example 500 mm to 700 mm.
  • the two-roll mills can (each) rotate at a speed or speeds of 100 to 3000 rpm, preferably 120 to 1000 rpm, e.g. 150 to 800 rpm.
  • the speed is 100 to 2860 rpm.
  • the speed is 110 to 1910 rpm.
  • the speed is 120 to 1400 rpm.
  • the speed is 140 to 950 rpm.
  • the speed is 140 to 1100 rpm.
  • the speed is 160 to 760 rpm.
  • the two-roller mills implemented within the system are operated with different gap widths.
  • the roller gaps are each set to a gap width of 0.5 mm to 30 mm. It may therefore be expedient to set the gap width of the first two-roller mill to a gap between 10 mm and 30 mm and to set the roller gap of the second two-roller mill to a gap width of 0.5 mm to 7 mm. If three two-roller mills are implemented one behind the other, a comparable gradation can be implemented.
  • the roller gap of the first two roller mills may be expedient to set the roller gap of the first two roller mills to 10 mm to 30 mm and the roller gap of the second two-roller mill to 5 mm to 15 mm and the roller gap of the third two-roller mill to 0.5 to 5 mm.
  • the invention also includes embodiments with more than three two-roll mills arranged one behind the other, e.g. with four or more two-roll mills. In this case, too, a suitable gradation of the roller gaps is established.
  • a roller press for the press agglomeration of fertilizers has two counter-rotating and driven press rollers or compacting rollers, which form a roller gap, whereby the starting material is pressed in the roller press under high pressure and compacted in the process, so that the slug is created.
  • the roller press is preferably operated with a pressing force of 40 kN to 100 kN per centimeter of roller width.
  • the peripheral speed of the press rollers of the roller press is generally 0.3 to 1.8 m/s and the roller diameter can be, for example, 0.5 to 1.5 m.
  • the roller width of the press rollers is selected depending on the diameter and the desired throughput.
  • Fig. 1 shows a schematically simplified view of a plant according to the invention for producing fertilizer granules in a first embodiment
  • Fig. 2 shows a second embodiment of the invention
  • Fig. 3 shows a third embodiment of the invention
  • Fig. 4 shows an example of a two-roll mill that can be used in a plant according to the invention.
  • the figures show a plant for producing fertilizer granulate in different embodiments.
  • the plant has a compacting machine 1 for producing a slug from inorganic starting material.
  • the compacting machine is preferably a high-pressure roller press 1, with which the inorganic starting material A is compacted into a slug S, i.e. into a flat strand of material that emerges from the roller gap of the roller press 1.
  • the roller press 1 is followed by a breaking device 2, with which the slug S emerging from the roller press 1 is pre-crushed into slug pieces P and consequently into lumpy material with relatively large and non-uniform dimensions.
  • This breaking device 2 which is also referred to as a slug breaker, is equipped with a large number of breaking elements, e.g. teeth, which act individually or in small numbers on the feed material and crush it.
  • the slug breaker 2 is followed by a plurality of two-roller mills 3a, 3b, 3c, so that the lumpy material P passes successively through a plurality of two-roller mills after leaving the slug breaker. This applies to all of the embodiments shown in Figs. 1, 2 and 3.
  • the basic structure of a two-roll mill 3a, 3b, 3c is shown in Fig. 4.
  • the two-roll mill 3a, 3b, 3c has two counter-rotating Grinding rollers 7, the roller surfaces of which are provided with a profile which is designed, for example, as a corrugation with a large number of channel-shaped depressions and projections. These channel-shaped depressions and projections (not shown) extend over the entire width of the roller and are oriented, for example, obliquely to the roller axis.
  • Each of the rollers 7 can consist of a rotating roller core and a ring bandage mounted on the roller core, which in turn is provided with the profile.
  • the rollers 7 can each be equipped with a cooling device with which the roller surfaces can be cooled.
  • the two-roller mills are provided with a housing 8 which forms an enclosure.
  • a feed shaft 9 is also provided through which the material is fed, whereby this shaft 9 can be part of the housing 8 or the enclosure.
  • the material is scattered loosely into the roller gap like a veil of material without pressure.
  • a vibrating chute 5 or vibrating platform (not shown in Fig. 4) can be provided, via which the material enters the shaft above the roller gap and is guided from there into the roller gap of the two-roll mill.
  • the two-roll mill in the described systems not only a single such two-roll mill is used as the last crushing unit for the production of the end product, but several two-roll mills are provided, through which the material or at least a part of the material passes successively in the production process, ie the pieces of slugs P emerging from the slug breaker 2 are successively fed onto the two-roll mills 3a, 3b or 3c arranged one behind the other, the gap widths of the two-roll mills being differently dimensioned or set differently within a system. and preferably decrease in the production direction from two-roller mill to two-roller mill. Furthermore, in the embodiments according to Figs.
  • FIGs. 1 and 2 several classifying devices 4a, b, c, namely screening devices in the exemplary embodiment, are integrated into the system.
  • the systems shown in Figs. 1 and 2 are each designed as circulating grain compacting and granulating systems, ie the two-roller mills and the classifying devices 4a, 4b, 4c are arranged and interconnected in such a way that the material successively passes through the two-roller mills 3a, 3b, 3c and the screening devices 4a, 4b, 4c in the circuit until the finished granulate E emerges from the last two-roller mill 3b or 3c.
  • the inorganic starting material A is fed, for example, via a conveyor device, for example via a bucket elevator 6, into the high-pressure roller press 1, in which it is compacted into the slug S.
  • the slug S is then crushed into slug pieces P in the slug crusher 2.
  • two two-roller mills 3a, 3b are arranged downstream of the slug crusher 2, which are passed through successively in the sense of a circulating grinding system.
  • the slug pieces P - if necessary via another bucket elevator 10 - reach a first screening device 4a, which is equipped with a screen deck.
  • the coarse fraction i.e.
  • the oversize grain is fed, for example, via a vibrating chute 5 to the first two-roller mill 3a, which is set to a first gap width.
  • the material emerging from the first two-roller mill 3a is fed again to the first screening device 4a in the circuit.
  • the undersize particles emerging from the first screening device 4a and consequently the Finer material is fed to a second screening device 4b, which in the embodiment is designed for classification into three fractions.
  • the upper grain of the second screening device 4b is fed to the second two-roll mill 3b via a second vibrating chute 5 and from there it is circulated back to the first screening device 4a.
  • the middle fraction of the second screening device 4b is discharged as the end product and thus as granulate E of the desired size.
  • the finest starting material F and thus the undergrain of the second screening device 4b is fed back into the production process, ie it is fed back to the two-roll press 1 with the starting material A for compaction.
  • Fig. 1 It is therefore clear from Fig. 1 that at least a portion of the material after the slug breaker 2 is fed to the first two-roller mill 3a via the first screening device 4a and that the material crushed therein then passes through the first screening device 4a and is partially fed to the second two-roller mill 3b via the second screening device 4b, so that it then passes through both the first screening device 4a and the second screening device 4b and emerges from the second screening device as medium grain and is available as the end product.
  • the two two-roller mills 3a, 3b are therefore arranged one behind the other in the circulation process.
  • two-roller mills 3a, 3b are provided as further comminution units behind the slug breaker 2, i.e. in the production process - as soon as slug pieces P are available - other comminution units than two-roller mills are dispensed with.
  • Another advantage is that the gap widths of the two-roller mills 3a, 3b can be individually adjusted.
  • the gap width of the first two-roller mill 3a, 3b is set larger than the gap width of the second two-roller mill 3b, since the first two-roller mill 3a is used for further pre-comminution, i.e.
  • the first two-roller mill 3a is primarily intended to process and pre-comminute relatively large slug pieces, so that material that is still (significantly) larger than the end product emerges from the first two-roller mill 3a.
  • the gap width of the second two-roller mill 3b is set so that granulate of the size of the end product E emerges from the two-roller mill 3b, a, i.e. the gap width is set (significantly) smaller than the gap width of the first two-roller mill 3a. It is important that the series connection of the two-roller mills 3a, 3b and screening devices 4a, 4b ensures a targeted supply of the material suitable for the following two-roller mill, i.e.
  • the intermediate screening devices 4a, 4b make it possible to reduce the feed load and adjust the size of the material, so that the individual two-roller mills 3a, 3b can be made relatively small overall.
  • the machines work particularly effectively because the differences between the feed size and the discharge size, and thus the crushing ratio, are small.
  • a first screening device 4a a second screening device 4b and a third screening device 4c are also implemented.
  • the material passes successively through the screening devices 4a, 4b, 4c and the two-roller mills 3a, 3b, 3c in the manner already described.
  • the end product emerges from the third screening device 4c as a middle fraction and consequently as a medium grain.
  • the respective gap width of the individual mills can be adapted even more precisely to the material to be processed, so that the individual two-roller mills are only supplied with material sizes that are suitable for particularly effective operation of the respective two-roller mill 3a, 3b, 3c.
  • the intermediate screening devices 4a, 4b, 4c also reduce the feed load and adjust the feed size perfectly so that relatively small machines can be used.
  • FIG. 3 A modified embodiment of the invention is shown in Fig. 3.
  • several two-roller mills 3a, 3b, 3c are arranged one behind the other, namely three two-roller mills in the exemplary embodiment.
  • intermediate screening devices are dispensed with.
  • the material passes from the slug breaker 2 to the first two-roller mill 3a, from there to the second two-roller mill 3b and finally to the third two-roller mill 3c, so that a cascade of three two-roller mills arranged one behind the other is realized.
  • the gap widths are graduated in such a way that only material that is smaller than the desired maximum granulate size, e.g.
  • a screening device 4a is connected downstream of several two-roll mills, so that only the upper grain is used as granulate and thus end product E, while the finest material passed through the screening device 4a is fed back into the process with the starting material A and consequently into the roller press 1.
  • only two-roll mills 3a, 3b, 3c are provided as comminution units behind the slug crusher 2.
  • Fig. 3 is characterized by a particularly simple structure, since there are no screening devices between the crushing units.
  • the embodiments shown in Figs. 1 and 2 are distinguished from the embodiment shown in Fig. 3 by the already described advantage that the feed load on the respective two-roller mill is reduced and the material fed to the respective two-roller mill is well adapted to the respective gap width, so that the machines work effectively and perfectly and can be dimensioned accordingly small.
  • Fig. 1 shows an embodiment with two two-roller mills 3a, 3b arranged one behind the other and Figures 2 and 3 show embodiments with three two-roller mills 3a, 3b, 3c arranged one behind the other.
  • the invention also includes embodiments with four or more two-roller mills arranged one behind the other. It is then also expedient to increase the number of screening devices accordingly.
  • Fig. 2 this is indicated in a simplified schematic by the symbols above the third two-roller mill 3c and above the third screening device 4c, since additional two-roller mills or screening devices can optionally be integrated at the marked locations in order to create embodiments with more than
  • Fig. 3 in which the symbol below the third two-roller mill 3c also shows the possibility of optionally integrating, for example, a fourth two-roller mill or even further two-roller mills.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne un système de production de granulés d'engrais, comprenant : - une machine de compactage (1) pour produire une feuille (S) à partir d'un matériau de départ inorganique (A) ; - un dispositif de rupture (2) pour pré-fragmenter la feuille (S) en morceaux de feuille (P) ; et - au moins deux broyeurs à doubles rouleaux (3a, 3b, 3c) qui sont agencés l'un derrière l'autre dans la direction de production, les broyeurs à doubles rouleaux (3a, 3b, 3c) comprenant chacun deux rouleaux de broyage entraînés en rotation (7), dont les surfaces de rouleau sont pourvues d'un profil et entre lesquels un interstice de rouleau présentant une largeur d'interstice est formé, les morceaux de feuille (P) pouvant être amenés successivement sur les broyeurs à doubles rouleaux (3a, 3b, 3c) qui sont agencés l'un derrière l'autre afin d'être broyés en granulés (E), et les largeurs d'interstice des broyeurs à doubles rouleaux (3a, 3b, 3c) étant dimensionnées différemment ou ajustées différemment et diminuant dans la direction de production à partir d'un broyeur à doubles rouleaux vers un broyeur à doubles rouleaux.
PCT/EP2023/086571 2023-03-17 2023-12-19 Système et procédé de production de granulés d'engrais Pending WO2024193846A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202380065759.5A CN119894597A (zh) 2023-03-17 2023-12-19 用于生产肥料颗粒的设备和方法
IL323054A IL323054A (en) 2023-03-17 2023-12-19 Apparatus and method for producing fertilizer granules
AU2023437757A AU2023437757A1 (en) 2023-03-17 2023-12-19 System and method for producing fertiliser granules

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023106787.7A DE102023106787B3 (de) 2023-03-17 2023-03-17 Anlage und Verfahren zur Herstellung von Düngemittelgranulat
DE102023106787.7 2023-03-17

Publications (1)

Publication Number Publication Date
WO2024193846A1 true WO2024193846A1 (fr) 2024-09-26

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Application Number Title Priority Date Filing Date
PCT/EP2023/086571 Pending WO2024193846A1 (fr) 2023-03-17 2023-12-19 Système et procédé de production de granulés d'engrais

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CN (1) CN119894597A (fr)
AU (1) AU2023437757A1 (fr)
CL (1) CL2025002809A1 (fr)
DE (1) DE102023106787B3 (fr)
IL (1) IL323054A (fr)
WO (1) WO2024193846A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1050158A (fr)
DE1758978A1 (de) 1968-09-11 1971-04-08 Koeppern & Co Kg Maschf Verfahren zum Kompaktieren von durch Flotation gewonnenen Kalisalzen auf Walzenpressen
DE1667147B1 (de) 1968-03-07 1971-09-16 Kloeckner Humboldt Deutz Ag Verfahren zur Granulierung feinkoerniger Stoffe
DE2824827B2 (de) 1978-06-06 1980-09-11 Maschinenfabrik Koeppern Gmbh & Co Kg, 4320 Hattingen Verfahren zum Verpressen von Salzen auf Walzenpressen
DE3802173C1 (fr) 1988-01-26 1988-09-08 Maschinenfabrik Koeppern Gmbh & Co Kg, 4320 Hattingen, De
DE69904770T2 (de) 1998-04-07 2003-10-16 Ocrim S.P.A, Cremona Zweistufige Mahlvorrichtung, Maschine mit einer solchen Vorrichtung und Verfahren unter Verwendung dieser Vorrichtung
US20110220745A1 (en) * 2008-11-05 2011-09-15 Polibiotech Srl Dry granulation in a gas stream
US20190240632A1 (en) * 2016-09-20 2019-08-08 Wuzhoufeng Agricultural Science & Technology Co., Ltd. Fertilizer production system
CN210058412U (zh) 2019-02-26 2020-02-14 连云港鹏辰特种新材料有限公司 一种均四甲苯高效粉碎装置
EP3801909B1 (fr) 2018-05-25 2022-03-30 Bühler AG Moulin à cereales et moulin à cylindres avec plusieurs passages de mouture pour mouture optimisée, et procédé correspondant
DE102020131638A1 (de) 2020-11-30 2022-06-02 Maschinenfabrik Köppern GmbH & Co KG Verfahren zur Zerkleinerung von Düngemittelschülpen in einer Zweiwalzenmühle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1050158A (fr)
DE1667147B1 (de) 1968-03-07 1971-09-16 Kloeckner Humboldt Deutz Ag Verfahren zur Granulierung feinkoerniger Stoffe
DE1758978A1 (de) 1968-09-11 1971-04-08 Koeppern & Co Kg Maschf Verfahren zum Kompaktieren von durch Flotation gewonnenen Kalisalzen auf Walzenpressen
DE2824827B2 (de) 1978-06-06 1980-09-11 Maschinenfabrik Koeppern Gmbh & Co Kg, 4320 Hattingen Verfahren zum Verpressen von Salzen auf Walzenpressen
DE3802173C1 (fr) 1988-01-26 1988-09-08 Maschinenfabrik Koeppern Gmbh & Co Kg, 4320 Hattingen, De
DE69904770T2 (de) 1998-04-07 2003-10-16 Ocrim S.P.A, Cremona Zweistufige Mahlvorrichtung, Maschine mit einer solchen Vorrichtung und Verfahren unter Verwendung dieser Vorrichtung
US20110220745A1 (en) * 2008-11-05 2011-09-15 Polibiotech Srl Dry granulation in a gas stream
US20190240632A1 (en) * 2016-09-20 2019-08-08 Wuzhoufeng Agricultural Science & Technology Co., Ltd. Fertilizer production system
EP3801909B1 (fr) 2018-05-25 2022-03-30 Bühler AG Moulin à cereales et moulin à cylindres avec plusieurs passages de mouture pour mouture optimisée, et procédé correspondant
CN210058412U (zh) 2019-02-26 2020-02-14 连云港鹏辰特种新材料有限公司 一种均四甲苯高效粉碎装置
DE102020131638A1 (de) 2020-11-30 2022-06-02 Maschinenfabrik Köppern GmbH & Co KG Verfahren zur Zerkleinerung von Düngemittelschülpen in einer Zweiwalzenmühle

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DE102023106787B3 (de) 2024-05-08

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