EP0053755B1 - Procédé et installation pour le broyage à impact - Google Patents

Procédé et installation pour le broyage à impact Download PDF

Info

Publication number
EP0053755B1
EP0053755B1 EP81109859A EP81109859A EP0053755B1 EP 0053755 B1 EP0053755 B1 EP 0053755B1 EP 81109859 A EP81109859 A EP 81109859A EP 81109859 A EP81109859 A EP 81109859A EP 0053755 B1 EP0053755 B1 EP 0053755B1
Authority
EP
European Patent Office
Prior art keywords
impact
impact crushing
jacket
screening
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.)
Expired
Application number
EP81109859A
Other languages
German (de)
English (en)
Other versions
EP0053755A3 (en
EP0053755A2 (fr
Inventor
Edwin Eisenegger
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25789583&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0053755(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19803046173 external-priority patent/DE3046173A1/de
Priority claimed from DE19813138259 external-priority patent/DE3138259A1/de
Application filed by Individual filed Critical Individual
Priority to AT81109859T priority Critical patent/ATE21049T1/de
Publication of EP0053755A2 publication Critical patent/EP0053755A2/fr
Publication of EP0053755A3 publication Critical patent/EP0053755A3/de
Application granted granted Critical
Publication of EP0053755B1 publication Critical patent/EP0053755B1/fr
Expired legal-status Critical Current

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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/13—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel

Definitions

  • the invention relates to an impact milling process of granular raw material into a finished product of a narrow predetermined grain size band, in which at least a portion of not passed through at least part of before the completion of an impact milling phase along a sieve shell extending essentially over the entire grinding path from the feed to this the regrind that has passed through the sieve jacket is removed from the impact grinding.
  • the invention relates to an impact grinding system for carrying out the impact grinding process with impact tools circulating in the grinding chamber inside the sieve jacket, a feed device guiding the raw material into the grinding chamber, a discharge device discharging the finished goods outside the sieve jacket and one in the direction of rotation of the impact tools in front of the Feeding device arranged, connected to a discharge line extraction device for ground material that has not passed through the screen jacket.
  • the object of the invention is to develop a method of the type mentioned in the preamble of claim 1 in such a way that the overall efficiency for producing a finished product within a specific grain size range is improved and the proportion of very fine material is reduced, the grain size of which is substantially smaller than that determined by the screen jacket . as well as to create an impact grinding plant for carrying out the method.
  • Embodiments of the invention are set out in the subclaims and the impact grinding system according to the invention is specified in claim 12.
  • the invention is particularly advantageous for use in grain and feed milling, the raw materials of which are inhomogeneous and of different densities and the finished goods of which are of different weights. These properties make grain size separation difficult, which is generally only possible through sieving.
  • the process according to the invention is characterized in that before the end of an impact grinding phase, that is to say before the complete passage through the grinding path, that is to say before the feed point is reached again by the ground material previously fed in for an impact grinding phase, at least a large part of the not the ground material that has passed through is removed and thus removed from the impact grinding.
  • This removal of the proportion of regrind not passed through the sieve jacket preferably takes place shortly before reaching the feed point for the raw material, so that with the sieve jacket extending essentially over the entire grinding path, a large part of the regrind that has already been comminuted to the required grain size can pass through the sieve jacket as finished product while a be share of the regrind already having the required grain size, together with a portion of the excess material which has not yet been comminuted to the required grain size, both of which have not passed through the sieve jacket, are removed and thus removed from the impact grinding.
  • These extracted portions of the ground material are subjected to a grain size separation in order to separate the finished product portion from the excess material portion. The portion of excess material is fed back to the impact grinding together with fresh raw material, while the portion of finished product separated in the grain size separation is removed together with the finished product which has passed through the screen jacket.
  • the grain size separation of the regrind portion removed from the impact grinding takes place by sieving, which ensures a simple and reliable separation of the finished product portion from the oversize portion.
  • the regrind that has passed through the sieve jacket is also fed to the grain size separation, so that this regrind fraction is also subjected to a test for correct grain size in order to to ensure that the finished product released from the grain size separation actually lies in the predetermined grain size band, which is particularly necessary in the case of fully automatic operation of such a system. If, on the other hand, excess material is also contained in the proportion of regrind that has passed through the sieve jacket, this excess material is also fed back into the feed device via the first outlet of the grain size separating device.
  • the impact, centrifugal or hammer mill 1 with the finished goods collecting space 11 within a housing 12 has a mill outlet 13 which opens into a pneumatic conveying path 14 as a discharge device.
  • the feed device 2 connects to a raw material hopper or feed container 21. This comprises a vibrating conveyor trough 22 and an adjoining feed shaft 23.
  • the feed shaft 23 is connected to the actual grinding unit 3 of the impact mill 1.
  • a grinding rotor 31 with impact tools or grinding hammers 32 is radially surrounded by a screen jacket 33 and rotatably arranged within the finished product collecting space 11 and driven in a known manner by a drive motor, not shown here.
  • a grinding chamber 34 is formed within the screen jacket 33 in the region of the impact tools 32, into which the feed shaft 23 opens.
  • a grain size separating device 4 consists of a sieve housing 41 with an oscillating drive 42 and an oscillatable bearing 43.
  • a sieve grating or mesh 44 adapted to the desired grain size separation is provided in the sieve housing 41.
  • the vibrating conveyor trough 22 is connected to the screen housing 41 and thus to the common vibratory drive 42.
  • a withdrawal device 51 from the grinding chamber 34 is arranged in a subsequent discharge or return line 52 in the screen jacket 33.
  • the return line opens into a cyclone separator 53, which is connected to the grain size separating device 4 by an air lock, in particular a cellular wheel lock 55.
  • An air outlet 54 of the cyclone separator 53 and the conveying section 14 can be designed in a known manner as pneumatic conveying and aspiration systems with fans and separators.
  • the air pressure required for the pneumatic return via the return line 52 can also be generated by the grinding rotor 31 or an impeller connected to it or formed on it.
  • the regrind remaining in the grinding chamber 34 up to the take-off device 51 arrives as return material from the impact grinding into the return line 52 and in this by pneumatic conveying into the cyclone separator 53 and out of this through the air lock 55 into the grain size separating device 4 predefined grain size band is adapted for the finished goods, the return material is separated into falling through finished goods and a surplus share as a rejection.
  • the finished product that has fallen through passes through the finished product outlet 46 to the finished product from the impact grinding phase in the collecting space 11, the excess material flows from the repelling overflow 45 into the feed device 2 and from there together with fresh raw material into the grinding chamber 34 for one through Mouth of the feed shaft 23 and the extraction device 51 along the screen jacket 33 limited impact grinding phase.
  • each make-up for each prilling phase takes place through a mixture of raw material from the feed container 21 and excess material from the grain size separating device 4.
  • This impact grinding process in such an impact grinding system ensures that a good part of the finished product produced during the impact grinding phase is discharged through the screen jacket, and that the remaining finished product portion of a grain size separation which is carried over well in the grinding chamber subjected and thus separated from insufficiently comminuted oversize material, so that only a small amount of oversize material is fed to a further impact milling phase.
  • the efficiency is improved thanks to the substantial relief of the finished product in the impact grinding phases and the power requirement is reduced, as is the screen area requirement and the size of the grain size separating device.
  • FIG. 2 of the drawing works in a similar manner to the embodiment shown in FIG. 1, a further cyclone separator 58 being shown, which is connected to the conveying path 14 in order to remove the finished product discharged by it separating it conveying air, the cyclone separator 58 is connected in a known manner to a suction fan 59 which is driven by a motor 60.
  • a cellular wheel sluice 61 is provided below the cyclone separator 58 and serves as an air sluice in order to improve the effect of the suction blower 59 on the conveying path 14 or the collecting space 11.
  • the air outlet 54 of the cyclone separator 53 can also be connected to the suction fan 59 in order to support the conveying of the material to be returned in the return line 52.
  • the repulsion overflow 45 of the grain size separating device 4 is connected to the grinding chamber 34 separately from the feed shaft 23.
  • an airlock 56 which is preferably also a cellular wheel sluice and which pneumatically decouples the space of the grain size separating device 4 above the sieve grating 44 from the grinding chamber 34.
  • a further air lock 57 which is preferably also a cellular wheel lock, is also provided between the finished product outlet 46 of the grain size separating device 4 and the collecting space 11 in order to pneumatically decouple it from the space of the grain size separating device 4 formed below the screen grid 44.
  • Such a vacuum in the space of the grain size separating device formed below the screen 44 could adversely affect the grain size separation if an air flow from the space formed above the screen 44 to the space formed below the screen would cause the openings to become blocked of the screen grid would lead through the excess material.
  • the Grain size separating device 4 is pneumatically decoupled or separated both from the grinding chamber 34 and from the collecting chamber 11.
  • the grinding rotor 31 is designed as an impeller or is combined with an impeller, which is indicated in the exemplary embodiment shown by impeller blades 61.
  • the repulsion overflow 45 and the finished product outlet 46 are pneumatically decoupled from the grinding chamber 34 and the collecting chamber 11 with the aid of air locks 56 and 57.
  • the feed of the raw material and also of the excess material discharged from the repulsion overflow 45 takes place centrally from the front side of the screen jacket, as can be clearly seen in particular from FIG. 4.
  • the effective length of the screen jacket 33 can be increased since it is only interrupted by the trigger device 51.
  • this embodiment differs from that of the embodiment shown in Fig. 2 only in that a separate suction fan 59 is not required, since the material removed from the extraction device 51 from the grinding process for the return and also for discharging the in the Collection space 11 collected finished goods required air pressure or a required air flow is generated by the grinding rotor 31 designed as an impeller itself.
  • the remaining mode of operation corresponds to that of the exemplary embodiments shown in FIGS. 1 and 2.
  • FIG. 5 Another exemplary embodiment of the invention is explained with reference to FIG. 5, in which the same or with reference numerals denote the same or corresponding components as in the previous exemplary embodiments.
  • the grain to be ground is fed from a feed container 21 via a feed shaft 23 to a metering screw 22 ′, then fed to a feed device 2, which feeds the grain into a grinding chamber 34 formed within a sieve jacket 33.
  • Impact tools 32 circulate within the screen jacket 33, and their direction of rotation can be selected either clockwise or counterclockwise.
  • Extraction devices 51 'and 51 are provided on both sides of the feed opening in the sieve jacket 33, which can be optionally closed by flaps 68 and 68', so that at most one of the extraction devices is open and thus effective to pull off regrind from the grinding chamber 34 '
  • Both the extraction devices 51 'and 51" and the one which can be closed with the slide 67 The opening opens into a space 11 surrounding the screen jacket 33, into which the ground material passing through the screen jacket also reaches.
  • the space 11 is connected to a discharge screw 62 which conveys the regrind entering the space 11 to a third outlet 63, from which the regrind is passed via an airlock 55 'to a bucket elevator 52' which forms the return line for the regrind .
  • the bucket elevator 52 conveys the regrind to a grain size separating device 4, which essentially consists of a sieve grid 44, whereby this grain size separating device 4 can be designed in the same way as is explained in more detail in the main patent.
  • the grain size separating device has a first outlet 45 for the oversize material which does not pass through the sieve grid 44 and a second outlet 46 for the finished material which has passed through the sieve grid and whose grain size is thus within the predetermined grain size range.
  • the first outlet 45 is connected to the metering screw 22 '. so that the excess material is fed from the dosing screw to the feed device 2.
  • the second outlet 46 is connected to a discharge device 14 ′, which is shown only schematically here, and which conveys the finished product.
  • the space 11 and the housing having the discharge screw 62 are connected via a filter 64 to a fan 65 which is driven by a motor 66.
  • the fan 65 extracts air from the space 11 or the entire grinding arrangement, which air is fed to the grinding arrangement via a side air inlet provided on the feed device 2.
  • the feed device 2 can also perform a central feed in the direction of the axis of rotation of the rotor carrying the impact tools 32 instead of peripheral feeding of the ground material, as is shown in detail in FIG. 3 of the main patent.
  • one of the flaps 68 and 68 ' is open, while the other is closed, so that one of the extraction devices 51' or 51 "grist does not pass through the sieve jacket 33 has passed through, is withdrawn from the grinding chamber 34 in order to be passed into the room 11.
  • This ground material withdrawn from the grinding chamber together with the grinding material which has passed through the sieve jacket 33 reaches the chamber 11 via the chamber 11 Discharge screw 62 and via the third outlet 63 and the airlock 55 'to the bucket elevator 52', which passes this regrind to the grain size separator 4.
  • the grain size separation into finished goods and oversize takes place with the aid of the screen grid 44, the finished goods having a grain size lying in the specific grain size range.
  • the finished product is fed to the discharge device 14 'via the second outlet 46.
  • the oversize material that does not pass through the screen grid 44 reaches the metering screw 22 ′ via the first outlet 45, which can be regulated depending on the load.
  • This excess material is passed together with fresh grain discharged from the feed container 21 via the feed shaft 23 to the feed device 2, via which the excess material is again fed into the grinding chamber 34.
  • the slide 67 is partially or completely opened in this process, in addition to the regrind removed from the grinding chamber 34 via the extraction device 51 ′ or 51 ′′, regrind is removed from the grinding chamber 34, as a result of which the grain size of the grinding stock fed to the grain size separating device 4 is determined
  • the slide 67 can also be fully opened In this case, both flaps 68 and 68 'can then be closed, since the regrind to be removed from the grinding chamber and which has not passed through the screen jacket 33 can then be removed only through the opening opened by the slide 67.
  • the method according to the invention and the system according to the invention ensure, by supplying all of the ground material removed from the grinding phase to the grain size separating device, that the ground material which has passed through the sieve jacket 33 is again subjected to a test for correct grain size. This means that even in the case of fully automatic operation of such an impact grinding system, in which no operating personnel are involved, the impact grinding system, and therefore no operating personnel, that the finished product exactly complies with a grain size lying in the particular grain size range.
  • a dosing screw 22 ', a discharge screw 62 and a bucket elevator 52' have been specified and shown schematically in the drawing as the conveying devices, other conveying devices such as conveyor belts or the like can of course also be used, which in each case depend on the length of the conveyor belt to be bridged conveyor line.
  • control of the grain size explained in connection with the slide 67 can of course also be carried out additionally or alternatively by continuously adjusting the opening cross section of the openings to be closed by the flaps 68 or 68 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Grinding (AREA)

Claims (24)

1. Procédé de broyage à impact destiné à transformer une matière brute granuleuse en une matière finie d'une granulométrie préalablement déterminée, ce procédé consistant à extraire du processus de broyage, avant même l'achèvement d'une phase de broyage à impact le long d!une enveloppe de tamisage (33) se prolongeant pour l'essentiel sur tout le parcours de broyage à partir de l'alimentation jusqu'à cette dernière, au moins une partie de la matière à broyer qui n'est pas passée à travers l'enveloppe de tamisage (33), caractérisé en ce que cette partie de la matière à broyer retournée et composée de matière excédentaire et de matière finie passe par un dispositif de triage (4) selon la grosseur de grain, agissant en fonction de la granulométrie préalablement déterminée, et en ce que la matière excédentaire dont les grains sont plus gros est renvoyée dans la chambre de broyage en tant que rebut, tandis que la matière à broyer passée à travers l'enveloppe de tamisage (33) et la matière à broyer séparée par le dispositif de triage (4) et dont la grosseur de grain est plus faible, constituent une matière finie et sont acheminées plus loin.
2. Procédé de broyage à impact selon la revendication 1, caractérisé en ce que la partie de la matière qui n'est pas passée à travers l'enveloppe de tamisage (33) est acheminée pneumatiquement vers le dispositif de triage selon la grosseur de grain (4) en tant que matière de retour.
3. Procédé de broyage à impact selon la revendication 1 ou 2, caractérisé en ce que le triage de la grosseur de grain (4) s'effectue par tamisage.
4. Procédé de broyage à impact selon la revendication 2 ou 3, caractérisé en ce que la pression de l'air nécessaire au transport pneumatique est établie à l'intérieur de l'enveloppe de tamisage (33).
5. Procédé de broyage à impact selon la revendication 3 ou 4, caractérisé en ce que l'espace du dispositif de triage selon la grosseur de grain (4) délivrant la matière excédentaire est découplé pneumatiquement par rapport à l'espace intérieur de l'enveloppe de tamisage (33) et/ou l'espace du dispositif de triage selon la grosseur de grain (4) délivrant la matière finie l'est également par rapport à l'environnement de l'enveloppe de tamisage (33).
6. Procédé de broyage à impact selon les revendications 1 à 5, caractérisé en ce que la matière brute et la partie excédentaire sont introduites à la surface de l'enveloppe de tamisage (33) dans la direction pour l'essentiel radiale de cette dernière.
7. Procédé de broyage à impact selon les revendications 1 à 6, caractérisé en ce que la matière brute et la partie excédentaire sont introduites au niveau d'une surface latérale de l'enveloppe de tamisage (33) dans la direction pour l'essentiel axiale de cette dernière.
8. Procédé de broyage à impact selon l'une des revendications 1 à 7, caractérisé en ce que la partie de matière qui est passée à travers l'enveloppe de tamisage (33) est également acheminée vers le dispositif de triage selon la grosseur de grain.
9. Procédé de broyage à impact selon la revendication 8, caractérisé en ce que la partie de matière qui est passée à travers l'enveloppe de tamisage (33) est également acheminée avec la partie de matière extraite du processus de broyage, vers le dispositif de triage selon la grosseur de grain (4) par un dispositif de transport (52'), en particulier par un élévateur à godets.
10. Procédé de broyage à impact selon la revendication 8 ou 9, caractérisé en ce que la partie de matière extraite du processus de broyage l'est à plusieurs endroits différents (68, 68') du parcours de broyage se prolongeant sur une phase de broyage à impact.
11. Procédé de broyage à impact selon l'une des revendications 8 à 10, caractérisé en ce que la quantité de matière extraite du processus de broyage est dosée.
12. Installation de broyage à impact destinée à réaliser le procédé de broyage à impact selon l'une des revendications 1 à 11, comportant des outils de broyage à impact (32) tournant dans la chambre de broyage (34) à l'intérieur de l'enveloppe de tamisage (33), un dispositif d'alimentation (2) introduisant la matière à broyer dans la chambre de broyage (34), un dispositif de décharge (13, 14) évacuant la matière finie hors de l'enveloppe de tamisage (33) et un dispositif d'extraction (51) disposé dans le sens de rotation des outils de broyage (32) en amont du dispositif d'alimentation (2), relié à une conduite d'évacuation (52) et destiné aux parties de matière qui ne sont pas passées à travers l'enveloppe de tamisage (33), caractérisée en ce que la conduite d'évacuation (52) transportant la matière excédentaire et la matière finement broyée aboutit à un dispositif de triage selon la grosseur de grain (4) qui présente une première ouverture (45) reliée au dispositif d'alimentation (2) et destinée à évacuer la matière excédentaire et une deuxième ouverture (46) reliée avec le dispositif de décharge (13, 14).
13. Installation de broyage à impact selon la revendication 12, caractérisée en ce que le dispositif de triage de la grosseur de grain (4) est réalisé sous la forme d'un dispositif de tamisage vibrant (43, 44), en ce que le dispositif d'alimentation (2) comprend une goulotte vibrante (22), en ce que le dispositif de tamisage et la goulotte vibrante sont équipés du même actionneur vibrant (42) et en ce que la première ouverture (45) du dispositif de tamisage et une troisième ouverture de la goulotte sont guidées ensemble.
14. Installation de broyage à impact selon la revendication 12 ou 13, caractérisé en ce que le dispositif d'alimentation (2) débouche au centre de la chambre de broyage (34) comportant les outils de broyage (32) rotatifs.
15. Installation de broyage à impact selon la revendication 12 ou 13, caractérisé en ce que le dispositif d'alimentation (2) débouche de manière radiale dans la chambre de broyage (34) à travers l'enveloppe de tamisage (33).
16. Installation de broyage à impact selon l'une des revendications 12 à 15, caractérisée en ce que la conduite de retour (52) est réalisée sous la forme d'une voie d'acheminement pneumatique partant de la chambre de broyage (34) et aboutissant dans le dispositif de triage selon la grosseur de grain (4).
17. Installation de broyage à impact selon l'une des revendications 12 à 16, caractérisée en ce que le dispositif de décharge destiné à la matière finie passée à travers l'enveloppe de tamisage (33) et/ou séparée dans le dispositif de triage selon la grosseur de grain (4), fonctionne pneumatiquement.
18. Installation de broyage à impact selon la revendication 16 ou 17, caractérisé en ce que le rotor de broyage (31) portant les outils de broyage à impact (32) est réalisé sous la forme d'un rotor de ventilation ou équipé d'un tel rotor, afin d'établir la pression de l'air nécessaire au transport pneumatique.
19. Installation de broyage à impact selon l'une des revendications 16 à 18, caractérisé en ce qu'un sas à air (56) provoquant un découplage pneumatique est placé entre la première ouverture (45) et la chambre de broyage (34).
20. Installation de broyage à impact selon l'une des revendications 16 à 19, caractérisée en ce qu'un sas à air (57) provoquant un découplage pneumatique est placé entre la deuxième ouverture (46) et le dispositif de décharge (13, 14).
21. Installation de broyage à impact selon l'une des revendications 16 à 20, caractérisée en ce que là conduite d'évacuation (52) débouche dans un séparateur cyclone (53).
22. Installation de broyage à impact selon l'une des revendications 12 à 15, caractérisée en ce que l'espace (11) recueillant la matière finie passée à travers l'enveloppe de tamisage (33) est également relié avec la conduite d'évacuation (52') et en ce que le dispositif de décharge (14') est uniquement relié avec la deuxième ouverture (46).
23. Installation de broyage à impact selon la revendication 22, caractérisée en ce que la conduite d'évacuation (52') comprend un dispositif d'acheminement, en particulier un élévateur à godets qui est disposé entre une troisième ouverture (63) et le dispositif de triage selon la grosseur de grain (4), la troisième ouverture pouvant servir à transmettre aussi bien la partie de matière passée à travers l'enveloppe de tamisage (33) que la matière extraite du processus de broyage.
24. Installation de broyage à impact selon la revendication 22 ou 23, caractérisée en ce que le dispositif d'extraction (51', 51") peut être fermé par un clapet (68, 68') et en ce qu'il est prévu sur l'enveloppe de tamisage (33) un tiroir (67) qui ferme ou ouvre l'ouverture de l'enveloppe de tamisage avec un diamètre modifiable.
EP81109859A 1980-12-08 1981-11-24 Procédé et installation pour le broyage à impact Expired EP0053755B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109859T ATE21049T1 (de) 1980-12-08 1981-11-24 Prallmahl-verfahren und -anlage.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3046173 1980-12-08
DE19803046173 DE3046173A1 (de) 1980-12-08 1980-12-08 Prallmahl-verfahren und -anlage
DE19813138259 DE3138259A1 (de) 1981-09-25 1981-09-25 Prallmahl-verfahren und -anlage
DE3138259 1981-09-25

Publications (3)

Publication Number Publication Date
EP0053755A2 EP0053755A2 (fr) 1982-06-16
EP0053755A3 EP0053755A3 (en) 1984-05-02
EP0053755B1 true EP0053755B1 (fr) 1986-07-30

Family

ID=25789583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109859A Expired EP0053755B1 (fr) 1980-12-08 1981-11-24 Procédé et installation pour le broyage à impact

Country Status (5)

Country Link
US (1) US4586658A (fr)
EP (1) EP0053755B1 (fr)
CA (1) CA1172225A (fr)
DK (1) DK151773C (fr)
ES (1) ES8304809A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730790A (en) * 1987-01-05 1988-03-15 Williams Patent Crusher And Pulverizer Company Waste material classifying and reducing apparatus
DE4124416A1 (de) * 1991-07-23 1993-01-28 Krupp Polysius Ag Einrichtung und verfahren zur zerkleinerung von mahlgut unterschiedlicher koernung
DE4128373A1 (de) * 1991-08-27 1993-03-04 Rudi Goldau Verfahren und vorrichtung zum zerkleinern von gut
US5312052A (en) * 1992-06-01 1994-05-17 Dellekamp Michael D Method for reclaiming fiber reinforcement from a composite
EP0613721A3 (fr) * 1993-03-02 1995-02-08 Herbert Strittmatter Procédé, son utilisation et dispositif de brayage et de traitement de produits de recyclage.
US5505390A (en) * 1994-06-17 1996-04-09 Rodgers; Charles C. Two stage hammer mill with particle separator
US5797549A (en) * 1996-06-06 1998-08-25 Williams; Robert M. Apparatus for separating plastics from paper fiber
ES2147110B1 (es) * 1998-01-14 2001-03-16 Scoiner S L Maquina trituradora de desechos.
US7828236B2 (en) * 2005-11-16 2010-11-09 Rodney I. Booth Grinding mill with air recirculation
DE102010020395A1 (de) 2010-02-20 2011-08-25 Astrium GmbH, 82024 Vorrichtung zur Fixierung einer Testperson auf einer Standfläche
US9604227B2 (en) * 2013-06-21 2017-03-28 St. Martin Investments, Inc. System and method for processing and treating an agricultural byproduct
US20150258551A1 (en) * 2014-03-13 2015-09-17 Steven Cottam Grinder Mill
HUE049971T2 (hu) * 2014-05-28 2020-11-30 Cormo Ag Eljárás szuperabszorbens pelletek és/vagy rostos anyag elõállítására termési maradványokból
CN105983466A (zh) * 2015-02-11 2016-10-05 科立视材料科技有限公司 破坏如聚集硝酸钾粉饼等聚集体的压碎机
CN106362831B (zh) * 2016-08-05 2018-10-23 安徽安特食品股份有限公司 一种用于酒精原料粉碎的锤式破碎机
US10638665B2 (en) * 2017-10-23 2020-05-05 MedReleaf Corp. Apparatus and methods for the comminution of botanical feedstock
CN107694135B (zh) * 2017-11-13 2021-09-14 昆明特康科技有限公司 一种用于高湿高黏性物料干燥制粉的磨机及其运用方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU139922A1 (ru) * 1961-01-17 1961-11-30 Н.Г. Гурари Дробильно-просеивающий агрегат, например, дл шквары
US3184170A (en) * 1962-04-10 1965-05-18 Universal Milling And Machiner Gas swept pulverizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR943826A (fr) * 1947-03-03 1949-03-18 Perfectionnements aux procédés de séparation et de récupération des matières broyées et dispositifs pour leur mise en oeuvre
US3078050A (en) * 1960-01-08 1963-02-19 Hardinge Harlowe Autogenous grinding process and mill systems to perform the same
US3106523A (en) * 1961-05-01 1963-10-08 Lefebvre Freres Limitee Grizzly bar feeder
DE1221083B (de) * 1964-06-23 1966-07-14 Steinmueller Gmbh L & C Muehle mit Windsichter
DE1806610A1 (de) * 1968-11-02 1970-05-21 Hombak Maschinenfab Kg Schleudermuehle
DE2122622A1 (de) * 1971-05-07 1972-11-16 Ludwig Pallmann Maschinenfabrik und Mahlwerk KG, 6660 Zweibrücken Schlägermühle
US4183471A (en) * 1978-04-24 1980-01-15 George Pfister Alfalfa separator
US4339085A (en) * 1980-04-14 1982-07-13 Williams Robert M Reversible material reducing mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU139922A1 (ru) * 1961-01-17 1961-11-30 Н.Г. Гурари Дробильно-просеивающий агрегат, например, дл шквары
US3184170A (en) * 1962-04-10 1965-05-18 Universal Milling And Machiner Gas swept pulverizer

Also Published As

Publication number Publication date
DK151773C (da) 1988-07-25
DK151773B (da) 1988-01-04
ES507786A0 (es) 1983-03-16
US4586658A (en) 1986-05-06
DK539581A (da) 1982-06-09
CA1172225A (fr) 1984-08-07
EP0053755A3 (en) 1984-05-02
ES8304809A1 (es) 1983-03-16
EP0053755A2 (fr) 1982-06-16

Similar Documents

Publication Publication Date Title
EP0053755B1 (fr) Procédé et installation pour le broyage à impact
EP1536892B1 (fr) Dispositif de broyage
DE102018123096B4 (de) Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle
EP0384101B1 (fr) Séparateur pneumatique pour trier des matériaux granulaires et installation de broyage comportant un tel séparateur
EP2704838B1 (fr) Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions
EP0325770B1 (fr) Procédé et installation de broyage
EP0603481B1 (fr) Procédé et installation pour le broyage de matière à moudre
EP0460490B1 (fr) Séparateur pneumatique
DE4223762A1 (de) Sichter zum Sichten von körnigem Gut und Mahlanlage mit Einschaltung eines solchen Sichters
EP0374491B1 (fr) Séparateur pneumatique
DE3145209C2 (fr)
WO2007054191A1 (fr) Broyeur a rouleaux
EP0634219A1 (fr) Procédé et dispositif de broyage de matériau avec une granulométrie variable
WO1991012892A1 (fr) Broyeur a chocs vertical a triage de matiere accouple
DE4033136A1 (de) Pneumatischer klassierer
EP0292739A2 (fr) Procédé et installation pour le broyage de matière à broyer
DE3021763C2 (de) Verfahren zur Entfernung der Rippen von einer Masse von Tabakstreifen und Vorrichtung zur Durchführung eines solchen Verfahrens
EP0237641B1 (fr) Installation pour le broyage de matière à broyer fragile
DE7234679U (de) Waelzmuehle zum zerkleinern von mit schwer mahlbaren teilchen durchsetztem mahlgut
DE3138259C2 (fr)
EP0102645B1 (fr) Procédé de broyage et broyeur à rouleaux pour la réalisation dudit procédé
DE19520325A1 (de) Sichtermühle
DE2239960A1 (de) Verfahren und vorrichtung zur zerkleinerung und zur probenentnahme von feststoffen
DE3046173C2 (fr)
CH690709A5 (de) Verfahren zur Prallvermahlung und Prallmühle.

Legal Events

Date Code Title Description
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

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19841031

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 21049

Country of ref document: AT

Date of ref document: 19860815

Kind code of ref document: T

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO GLP S.R.L.

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KLOECKNER-HUMBOLDT-DEUTZ AG, KOELN C/O KHD HUMBOLD

Effective date: 19870428

NLR1 Nl: opposition has been filed with the epo

Opponent name: KLOECKNER- HUMBOLD- DEUTZ AG

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19880907

NLR2 Nl: decision of opposition
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19931116

Year of fee payment: 13

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

Ref country code: FR

Payment date: 19941027

Year of fee payment: 14

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

Ref country code: BE

Payment date: 19941104

Year of fee payment: 14

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

Ref country code: AT

Payment date: 19941107

Year of fee payment: 14

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

Ref country code: SE

Effective date: 19941125

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

Ref country code: NL

Payment date: 19941130

Year of fee payment: 14

EAL Se: european patent in force in sweden

Ref document number: 81109859.9

EUG Se: european patent has lapsed

Ref document number: 81109859.9

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

Ref country code: AT

Effective date: 19951124

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

Ref country code: BE

Effective date: 19951130

BERE Be: lapsed

Owner name: EISENEGGER EDWIN

Effective date: 19951130

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

Ref country code: NL

Effective date: 19960601

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

Ref country code: FR

Effective date: 19960731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Payment date: 19981026

Year of fee payment: 18

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: 19991124

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

Effective date: 19991124

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

Ref country code: CH

Payment date: 20001128

Year of fee payment: 20

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20011123

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20011123

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL