WO2011134652A1 - Presse a rouleaux - Google Patents

Presse a rouleaux Download PDF

Info

Publication number
WO2011134652A1
WO2011134652A1 PCT/EP2011/002114 EP2011002114W WO2011134652A1 WO 2011134652 A1 WO2011134652 A1 WO 2011134652A1 EP 2011002114 W EP2011002114 W EP 2011002114W WO 2011134652 A1 WO2011134652 A1 WO 2011134652A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
nip
collar
press according
roll press
Prior art date
Application number
PCT/EP2011/002114
Other languages
German (de)
English (en)
Inventor
Leonhard Heinrichsmeier
Claus Eberhardt
Claus Ulrich
Original Assignee
Hosokawa Bepex Gmbh
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 Hosokawa Bepex Gmbh filed Critical Hosokawa Bepex Gmbh
Publication of WO2011134652A1 publication Critical patent/WO2011134652A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
    • B30B11/165—Roll constructions
    • 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
    • B02C4/28—Details
    • B02C4/283—Lateral sealing shields
    • 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
    • B02C4/28—Details
    • B02C4/286—Feeding devices
    • 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
    • B02C4/28—Details
    • B02C4/42—Driving mechanisms; Roller speed control
    • B02C4/423—Driving mechanisms; Roller speed control with vibrating or oscillating mechanisms
    • 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
    • B02C4/28—Details
    • B02C4/44—Cooling or heating rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses

Definitions

  • the present invention relates to a roller press, in particular for compacting powders, with a first rotatable roller and a second rotatable roller, which form between them a nip through which the material to be processed during operation is guided, and whose axes of rotation extend at least substantially parallel to one another , wherein the nip is closed on both sides by a respective peripheral collar which is attached to one of the rollers and protrudes radially at least as far beyond the roller diameter of the associated roller, that it directly the nip and on the inlet and outlet sides covering the adjacent area frontally.
  • powdery bulk materials are often used, which are difficult to process due to the poor flow properties of powders. Powders are therefore often converted into granules.
  • a common method for granulating powders is the so-called compacting.
  • compacting the powder to be granulated is fed to a roll press having a pair of rolls and passed through the nip formed between the two rolls. Between the rollers, in particular in the nip itself, the powder is compacted into a so-called scab. The air escaping from the powder during the compression process is removed via the end faces of the rollers.
  • each collar must be fastened to the circumference of the roller in many places.
  • fastening by means of screws this results in a relatively high number of fastening screws per collar.
  • all these fixing screws must be solved in order to solve the rolls of their associated shaft can.
  • it must be possible to disassemble the roller the
  • the invention has for its object to provide a roller press, the nip including the inlet and outlet side immediately adjoining the end region is well sealed and yet easily and quickly disassembled without the aid of a complex, additional device.
  • each roller of a pair of rollers has only one collar, wherein one roller has the collar on one end side and the other roller has the collar on the opposite or opposite end side.
  • each of a collar attached to each roller of a pair of rollers is formed integrally with the associated roller or constitutes a separate component attached to the corresponding end of the roller, e.g. by means of a series of
  • each collar protrudes approximately 10 mm radially beyond the working surface of the associated roller.
  • each roller axially clamped by means of a pressure lid on the shaft rotatably supporting shaft, wherein the outer edge of the roller facing side of the pressure lid formed by a static lip seal is.
  • a static lip seal avoids the formation of a small gap, as occurs in the use of a conventionally used O-ring, and thus creates a dead space seal between the outer periphery of the pressure cap and the end face of the roller against which the pressure lid. It is better possible to clean a roll press designed in this way because no material residues can settle in the gap which no longer exists.
  • a pressure lid with static lip seal using mounting a roller on its shaft is due to their ease of assembly and disassembly particularly advantageous in conjunction with the above-described embodiment of the collar rollers of a roller press, but can also be independent of such
  • Embodiment are used, i. in a roll press with conventionally executed collar roll (both collars on one and the same roll) and also on roll presses without collar roll.
  • the feeding of the rolls or of the roll gap is generally effected by means of gravitational force or positively guided by means of one or more screws, also called stuffing screws.
  • a stuffing screw normally ends shortly before the nip and is wrapped in the area of the rolls by a so-called screw chamber, through which the stuffing screw presses the material to be processed to the nip.
  • the screw chamber from an operating position in a too The axes of rotation of the rollers parallel direction together with the screw conveyor in a laterally offset to the nip maintenance position displaced. This structural measure no additional space above the roller press is required even when disassembling the roller press, ie the height of the roller press can be kept small. Again, this is particularly advantageous when the roller press is arranged in an insulator.
  • the plug screw in the maintenance position, can be pulled axially downwards out of the screw chamber. This is possible in an insulator and using gloves easily and space-saving.
  • the above-described displacement of the screw chamber from the operating position into the laterally offset to the nip maintenance position is preferably made possible by the fact that the screw chamber is received in its operating position in a fixed, open to the maintenance position holder.
  • a detachable, approximately heart-shaped pressure plate preferably closes the side of the holder which is open towards the maintenance position during operation. The holder can do so
  • the temperature increases due to the compression due to frictional effects.
  • the printing plate or the printing plates and / or the holder are preferably liquid-cooled. In this way, temperature-sensitive products are not damaged when passing through the roller press.
  • Embodiments of the roll press according to the invention with a screw chamber which can be displaced from an operating position in a direction parallel to the axes of rotation of the rolls together with the screw conveyor into a maintenance position staggered laterally relative to the nip, preferably also have the above in the sense of simpler demountability and improved cleaning capability discussed features of unilateral collar rolls and / or pressure lid with static Lip seal on, but can also be used without these features and retain their advantages in terms of compact design and good disassembly under tight conditions.
  • FIG. 1 is a front view of a roller press with metering screw arrangement according to the invention
  • FIG. 2 is a side view of the device of FIG. 1 rotated by 90 °, shown partially exploded, FIG.
  • Figure 3 shows a top view of the roller press of Figure 1 without Dosierschneckenan angel and in partially disassembled state
  • Figure 4 is a spatial, partially exploded view of the device of Figure 1 obliquely from above.
  • FIG. 1 and 2 in two different lateral views of a generally designated 10 roll press for use is shown as a compactor ®, for example, in the pharmaceutical industry.
  • the roller press 10 has a first roller 12 and a second roller 14 each having a cylindrical working surface 12a and 14a and mounted on an associated rotary shaft 13, 15 (see FIG. 3).
  • the two drive shafts 13, 15 define mutually parallel axes of rotation 13a, 15a, around which the rollers 12, 14 rotate in opposite directions during operation.
  • the two rollers 12, 14 form, in the region of their working surfaces 12a, 14a, a nip 16 (see FIG. 4) to which pulverulent material to be processed by means of a metering screw arrangement 18 can be fed in order to granulate it.
  • the metering screw assembly 18 comprises a plug screw 20, which is rotatably supported in a receptacle 22 and extends through a screw tube 24 and a receiving plate 26 in a screw chamber 28, which is above the nip 16th is arranged and extends into the area between the two rollers 12, 14. From the screw chamber 28, the plug screw 20 protrudes downwards and ends immediately above the nip 16th
  • a drive motor 30 belonging to the metering screw arrangement 18 is arranged with its main extension at right angles to the stuffing screw 20 in order to minimize the overall height of the roller press 10.
  • a blocking gear 32 blocked by the drive motor 30 transmits the driving force of the motor 30 to the upper end of the screw conveyor 20 located in the socket 22 to drive the latter in rotation.
  • the supplied powdery material is compressed and then - after exiting the screw chamber 28 - the roller gap 16 forcibly fed.
  • a so-called scoop is formed by further compression of the supplied material, which falls out of the nip 16 below and is transported away by a conveyor belt or the like, not shown here. From the slug, a granulate of desired size can be easily prepared for further processing, for example for
  • the two rollers 12, 14 are designed as so-called collar rollers, wherein the first roller 12 has a first collar 34 (see Figure 3) on its one end face 36, which faces the viewer in Figure 1.
  • the second roller 14 has a second collar 38 on its end face 40, which is opposite to the end face 36 of the first roller 12 and thus facing away from the observer in FIG. 1 (see FIG. 3).
  • Each collar 34, 38 projects radially so far beyond the roller diameter D of the associated roller 12 or 14 that it covers or overlaps the roller gap 16 and an area immediately adjacent thereto on the inlet and outlet side between the working surfaces 12a, 14a.
  • the collar 34 and 38 may be integrally formed with the associated roller 12, 14 or represent separate components which are attached to the respective end face 36, 40 of the roller 12, 14, for example by means of fastening screws.
  • the radial projection is in the illustrated embodiment about 10 mm.
  • the screw chamber 28 is received in a holder 42, the open end faces by a removable, approximately heart-shaped pressure plate 44, 46 can be closed.
  • the two pressure plates 44 and 46 by means of two screws 47, 48 fastened to the bracket 42 and cover the front end of the entire inlet area between the two rollers 12, 14, the region of the nip 16 and additionally by means of an extension 50 a part of after the nip 16 arranged outlet from.
  • the composite of the screw chamber 28, the holder 42, the pressure plates 44, 46 and the receiving plate 26 forms a stable assembly that is able to withstand the forces occurring during operation well.
  • the pressure plates 44 and 46 can be liquid-cooled and for this purpose have one or more cavities (not shown) through which a cooling liquid circulates during operation.
  • Each roller 12, 14 is fixed by means of a pressure cover 52, 54 (see in particular FIGS. 1 and 3) to an output stub 56 of the shaft 13, 15, respectively.
  • Each pressure lid 52, 54 is screwed in the illustrated embodiment by means of three screws 58 (see Figure 3) on the associated output stub 56 and braces the associated roller 12 and 14 axially on the shaft 13 and 15.
  • a static lip seal 60 (see Figure 3). This lip seal 60 allows a gap-free and thus dead space-free seal between the pressure cover 52 and 54 and the end face of the associated roller 12 and 14, which prevents product deposits in this area and is easy to clean.
  • the pressure roller 52 holding the first roller 12 can be removed and the roller 12 can be pulled off the output stub 56 to the front.
  • the procedure is analogous to the pressure cover 54 and the second roller 14. It can be seen that, due to the collar 34, 38 arranged only on one side on each roller 12, 14, a mutual obstruction of the collars 34, 38 is avoided.
  • An assembly of the roller press 10 is just as easy to reverse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention concerne une presse à rouleaux (10), notamment destinée à compacter des poudres et comprenant un premier rouleau (12) rotatif et un deuxième rouleau (14) rotatif formant entre eux un espacement (16) par lequel, en mode de fonctionnement, la matière à traiter est guidée; les axes de rotation (13a, 15a) desdits rouleaux étant au moins sensiblement parallèles; l'espacement (16) entre rouleaux étant fermé en face frontale des deux côtés respectivement par un col périphérique (34, 38) qui est appliqué sur un des rouleaux (12, 14) et qui dépasse au moins d'une certaine longueur le diamètre (D) du rouleau associé de manière à recouvrir, sur la face frontale, l'espacement (16) et une zone située dans le prolongement immédiat dudit espacement, côté entrée et côté sortie. Le but de l'invention est de permettre un démontage simple pour une bonne étanchéité latérale de l'espacement (16). A cet effet, un premier col (34) est appliqué sur une face frontale (36) du premier rouleau (12) et un deuxième col (38) sur la face frontale (40) du deuxième rouleau (14), opposée à ladite face frontale (36) du premier rouleau (12).
PCT/EP2011/002114 2010-04-27 2011-04-27 Presse a rouleaux WO2011134652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010018420.9 2010-04-27
DE102010018420.9A DE102010018420B4 (de) 2010-04-27 2010-04-27 Walzenpresse

Publications (1)

Publication Number Publication Date
WO2011134652A1 true WO2011134652A1 (fr) 2011-11-03

Family

ID=44242484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/002114 WO2011134652A1 (fr) 2010-04-27 2011-04-27 Presse a rouleaux

Country Status (2)

Country Link
DE (1) DE102010018420B4 (fr)
WO (1) WO2011134652A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113166981A (zh) * 2018-12-04 2021-07-23 欧瑞康纺织有限及两合公司 用于运行卷曲设备的方法和卷曲设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE569857C (de) * 1931-04-03 1933-02-08 Humboldt Deutzmotoren Akt Ges Presswalzenanordnung bei Pressen zur Herstellung von Briketten aus Braunkohle, Steinkohle, Schwelkoks u. dgl.
FR775328A (fr) * 1934-07-03 1934-12-26 Usines De La Chaleassiere Soc Perfectionnements aux presses à boulets
FR2302193A1 (fr) * 1975-02-27 1976-09-24 Takeda Chemical Industries Ltd Machine de compactage de poudre
DE3622053A1 (de) * 1985-07-01 1987-01-15 Kobe Steel Ltd Verdichtungsgeraet
WO1993013858A1 (fr) * 1992-01-20 1993-07-22 Eco Italia S.A.S. Di Basile Rodolfo & C. Dispositif a cylindres destine a broyer les carcasses de pneumatiques uses sous forme de bandes
US20050084560A1 (en) * 2003-10-20 2005-04-21 Roland Edward J. Powder compacting apparatus for continuous pressing of pharmaceutical powder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634478C (de) * 1934-10-28 1936-08-28 Fried Krupp Grusonwerk Akt Ges Walzenpresse mit Vorpressvorrichtung
JPS60189532U (ja) * 1984-05-22 1985-12-16 住友金属工業株式会社 粉末圧延用ロ−ル
JP3995610B2 (ja) * 2003-02-04 2007-10-24 フロイント産業株式会社 乾式造粒装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE569857C (de) * 1931-04-03 1933-02-08 Humboldt Deutzmotoren Akt Ges Presswalzenanordnung bei Pressen zur Herstellung von Briketten aus Braunkohle, Steinkohle, Schwelkoks u. dgl.
FR775328A (fr) * 1934-07-03 1934-12-26 Usines De La Chaleassiere Soc Perfectionnements aux presses à boulets
FR2302193A1 (fr) * 1975-02-27 1976-09-24 Takeda Chemical Industries Ltd Machine de compactage de poudre
DE3622053A1 (de) * 1985-07-01 1987-01-15 Kobe Steel Ltd Verdichtungsgeraet
WO1993013858A1 (fr) * 1992-01-20 1993-07-22 Eco Italia S.A.S. Di Basile Rodolfo & C. Dispositif a cylindres destine a broyer les carcasses de pneumatiques uses sous forme de bandes
US20050084560A1 (en) * 2003-10-20 2005-04-21 Roland Edward J. Powder compacting apparatus for continuous pressing of pharmaceutical powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113166981A (zh) * 2018-12-04 2021-07-23 欧瑞康纺织有限及两合公司 用于运行卷曲设备的方法和卷曲设备
CN113166981B (zh) * 2018-12-04 2023-04-11 欧瑞康纺织有限及两合公司 用于运行卷曲设备的方法和卷曲设备

Also Published As

Publication number Publication date
DE102010018420A1 (de) 2011-10-27
DE102010018420B4 (de) 2017-10-05

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