EP0049450B1 - Mischer für Schüttgut, insbesondere für faserige Suspensionen - Google Patents

Mischer für Schüttgut, insbesondere für faserige Suspensionen Download PDF

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Publication number
EP0049450B1
EP0049450B1 EP81107682A EP81107682A EP0049450B1 EP 0049450 B1 EP0049450 B1 EP 0049450B1 EP 81107682 A EP81107682 A EP 81107682A EP 81107682 A EP81107682 A EP 81107682A EP 0049450 B1 EP0049450 B1 EP 0049450B1
Authority
EP
European Patent Office
Prior art keywords
container
mixer according
cylinder element
grinding wheel
comminuting
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
EP81107682A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0049450A2 (de
EP0049450A3 (en
Inventor
Eberhard Ing.-Grad. Lipp
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.)
Draiswerke GmbH
Original Assignee
Draiswerke 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 Draiswerke GmbH filed Critical Draiswerke GmbH
Publication of EP0049450A2 publication Critical patent/EP0049450A2/de
Publication of EP0049450A3 publication Critical patent/EP0049450A3/de
Application granted granted Critical
Publication of EP0049450B1 publication Critical patent/EP0049450B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/342—Mixing apparatus

Definitions

  • the invention relates to a mixer according to the preamble of claim 1.
  • friction plates extending in the circumferential direction are attached to the inner wall of the container as comminution elements, each of which forms a counter surface to the circumferentially drivable mixer blades, thus together with these form a comminution device, the each mixing blade also has the function of a comminuting element.
  • the friction plates can also be perforated and / or roughened like sieve plates. The purpose of these crushing devices is to immediately break up agglomerates that form during a treatment process. The effect of these shredding devices is unsatisfactory.
  • cutter heads which can be driven at high speed and which are provided in the region of the container wall and whose axis of rotation extends approximately radially to the container as a comminution device in mixers of the otherwise generic type. They are arranged so that they are arranged radially inside the mixing blades and partially overlap them axially.
  • a swash plate pump with a cylindrical housing and a shaft arranged coaxially therein is known.
  • a swashplate is attached, that is, a disk that performs a wobble movement during rotation, which sucks in a medium to be pumped during its circulation through an intake port arranged at the end and in the center and conveys it through a tangentially arranged pressure port.
  • the swash plate can be designed in a serrated or saw-like manner on its outer circumference. This form can be adapted to housing enclosures arranged on the housing, whereby this pump also has grinding properties.
  • a machine for producing a paper mash which has comminution devices in the conveying part, which consist of friction surfaces attached to the container and associated cylinder section surfaces with friction devices.
  • the invention has for its object to design a mixer of the generic type so that a highly effective and gentle comminution can be carried out while achieving a homogeneous particle size distribution of the material to be treated, without risk of damage to the comminuting elements.
  • a grinding gap is formed between the grinding disks and the cylinder parts, so that forced comminution takes place.
  • the arrangement of the cylinder parts enables the cylinder parts to be arranged so as to be radially adjustable, so that the width of the grinding gap is adjustable. This enables a very homogeneous grain distribution to be achieved, which means that a grinding process that follows the process can be omitted.
  • the mixer according to the invention bulk goods, moist, fibrous and pulpy goods and suspensions can be dried, heated, cooled or mixed or subjected to a reaction under negative pressure, normal pressure or positive pressure.
  • the material to be treated is constantly mixed by means of the mixing blades, loosened and fed to the grinding disks, where it is then crushed in the grinding gap.
  • the mixer shown in the drawing has a drum-like container 1 with mixing blades 3 which can be driven by a shaft 2 passing through, with holding arms 4 which are evenly distributed over the shaft 2 with respect to distance and angular position. Between these mixing blades 3, grinding disks 5 are additionally arranged at an angle to the longitudinal direction on the rotating shaft 2, which wobbles when rotated perform movement.
  • the number of grinding disks 5 is at least "one” and at most the number of mixing blades 3 reduced by "one”.
  • the optimum degree of filling of the container 1 with bulk material 6 or fibrous suspension is approximately 70%.
  • the peripheral surface is formed on interchangeable grinding segments 7, while the counter surfaces are formed by the inner surfaces 8 of cylinder parts that can be adjusted relative to the container 1.
  • the cylinder parts are arranged on supports 9 that can be adjusted from the outside in the container 1 in such a way that mixing blades 3 can pass through them on one or both sides , as can be seen from Fig. 1.
  • the adjustable supports 9 for the cylinder parts are sealed by means of bellows 10.
  • the cylinder parts are arranged in the lower region of the container 1 on the part rising in the direction of rotation D of the shaft 2 and cover approximately 10-50%, preferably 25%, of the circumference of the container 1 covered by the mixing blades 3.
  • the effective width b of the grinding disks 5 corresponds approximately to the axial extent of a mixing blade 3.
  • the cylinder parts are, as can be seen from the drawing, under the action of a spring 11.
  • the adjustable supports 9 of the cylinder parts can be designed as spring pistons, the spring pistons are preferably formed by so-called constant spring supports, which are not particularly shown here, so that a constant pressure is achieved.
  • Stubs 12, 13 are used for filling and emptying the container 1. Provisions have been made in order to be able to draw off the moisture given off by the material to be treated and to be able to supply reactants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Crushing And Grinding (AREA)
EP81107682A 1980-10-02 1981-09-28 Mischer für Schüttgut, insbesondere für faserige Suspensionen Expired EP0049450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037332A DE3037332C2 (de) 1980-10-02 1980-10-02 Mischer für Schüttgut und Suspensionen, insbesondere faserige Suspensionen
DE3037332 1980-10-02

Publications (3)

Publication Number Publication Date
EP0049450A2 EP0049450A2 (de) 1982-04-14
EP0049450A3 EP0049450A3 (en) 1983-04-20
EP0049450B1 true EP0049450B1 (de) 1985-04-03

Family

ID=6113479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107682A Expired EP0049450B1 (de) 1980-10-02 1981-09-28 Mischer für Schüttgut, insbesondere für faserige Suspensionen

Country Status (5)

Country Link
US (1) US4413790A (es)
EP (1) EP0049450B1 (es)
JP (1) JPS5791728A (es)
DE (2) DE3037332C2 (es)
ES (1) ES505955A0 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3210912A1 (de) * 1980-10-02 1983-09-29 Draiswerke Gmbh, 6800 Mannheim Mischer fuer schuettgut
DE3515318A1 (de) * 1985-04-27 1986-10-30 Draiswerke Gmbh, 6800 Mannheim Stiftmuehle fuer mischer
DE3538070A1 (de) * 1985-10-25 1987-04-30 Krauss Maffei Ag Misch- und knetvorrichtung
DE3728710C2 (de) * 1987-08-28 1997-08-21 Loedige Maschbau Gmbh Geb Mischer zum Mischen von Feststoffschüttungen
CA2068829C (en) * 1991-05-17 1998-12-15 Yashichi Ooyagi Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body
DE4124984C2 (de) * 1991-07-27 1995-04-27 Babcock Bsh Ag Verwendung einer Misch-, Granulier- und Trocknungsvorrichtung
EP1390132A2 (de) * 2001-04-25 2004-02-25 List Ag Radial oder axial reinigende mischbarren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020002B (de) * 1953-09-25 1957-11-28 Wilhelm Loedige Mischmaschinen mit in einem Behaelter auf einer Welle wendelfoermig verteilten Misch- und Schleuder-Elementen
DE1102534B (de) * 1957-12-20 1961-03-16 Fritz Loedige Vorrichtung zum Mischen, Zerkleinern und gegebenenfalls Anfeuchten von pulverfoermigen, feinkoernigen oder faserigen Stoffen
DE1782585B2 (de) * 1968-09-20 1976-05-26 Draiswerke Gmbh, 6800 Mannheim Mischmaschine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US221371A (en) * 1879-11-04 Improvement in grinding-mills
GB191316768A (en) * 1913-07-22 1914-07-02 William Worby Beaumont Improvements in Machines for Preparing Paper Pulp.
US1302398A (en) * 1918-05-13 1919-04-29 Bert V Barber Letter-opener.
GB166094A (en) * 1920-07-09 1921-06-30 Leon Gabriel Antonin Potie Improvements in a disintegrator for making paper
US1953733A (en) * 1931-11-30 1934-04-03 Baker Perkins Co Inc Mixing, kneading, and shredding blade
US2492421A (en) * 1945-03-31 1949-12-27 American Viscose Corp Viscose preparation
DE868844C (de) * 1949-01-01 1956-07-05 Werner Reisten Muehle fuer die fortlaufende Mahlung von Faserstoffen wie Papierstoff, Zellstoff, Holzfaserstoff u. dgl.
FR1058662A (fr) * 1951-06-25 1954-03-18 Glanzstoff Ag Défibreur à compartiments
FR1216609A (fr) * 1957-12-20 1960-04-26 Broyeur-malaxeur et procédé de malaxage et de broyage
GB976372A (en) * 1959-12-29 1964-11-25 Neidl Georg Fibrous material and method and apparatus for its production
CH566167A5 (es) * 1973-09-28 1975-09-15 Bicik Vladislav
DE2646512A1 (de) * 1976-10-15 1978-04-20 Fritz Loedige Verfahren zum chargenweisen behandeln von schuettguetern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020002B (de) * 1953-09-25 1957-11-28 Wilhelm Loedige Mischmaschinen mit in einem Behaelter auf einer Welle wendelfoermig verteilten Misch- und Schleuder-Elementen
DE1102534B (de) * 1957-12-20 1961-03-16 Fritz Loedige Vorrichtung zum Mischen, Zerkleinern und gegebenenfalls Anfeuchten von pulverfoermigen, feinkoernigen oder faserigen Stoffen
DE1782585B2 (de) * 1968-09-20 1976-05-26 Draiswerke Gmbh, 6800 Mannheim Mischmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Aufbereitungs-Technik" Heft 6 1971 (Seiten 7/8) *
"Chemiker-Zeitung", 94, (1970) Nr. 4 Seite 321 *

Also Published As

Publication number Publication date
EP0049450A2 (de) 1982-04-14
ES8207437A1 (es) 1982-10-01
DE3037332A1 (de) 1982-04-15
JPH0140648B2 (es) 1989-08-30
EP0049450A3 (en) 1983-04-20
DE3037332C2 (de) 1983-09-08
ES505955A0 (es) 1982-10-01
JPS5791728A (en) 1982-06-08
DE3169701D1 (en) 1985-05-09
US4413790A (en) 1983-11-08

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