EP0023253B1 - Mischer zum kontinuierlichen Beleimen von Holzspänen, -fasern od. dgl. - Google Patents

Mischer zum kontinuierlichen Beleimen von Holzspänen, -fasern od. dgl. Download PDF

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Publication number
EP0023253B1
EP0023253B1 EP80103071A EP80103071A EP0023253B1 EP 0023253 B1 EP0023253 B1 EP 0023253B1 EP 80103071 A EP80103071 A EP 80103071A EP 80103071 A EP80103071 A EP 80103071A EP 0023253 B1 EP0023253 B1 EP 0023253B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
motor
mixer
throttle
mixer according
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
EP80103071A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0023253A1 (de
Inventor
Werner Christen
Helmut Müller
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
Priority to AT80103071T priority Critical patent/ATE1046T1/de
Publication of EP0023253A1 publication Critical patent/EP0023253A1/de
Application granted granted Critical
Publication of EP0023253B1 publication Critical patent/EP0023253B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0236—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings
    • B27N1/0245—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings with a single stirrer shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B01F35/451—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by rotating them about an axis parallel to the plane of the opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms

Definitions

  • the invention relates to a mixer according to the preamble of claim 1.
  • Such mixers are known from DE-A27 17896. Depending on the pressure of the mix against the throttle valve, it opens more or less.
  • the distance of the counterweight from the swivel axis of the throttle valve can be adjusted so that a basic adaptation to certain predetermined operating conditions, such as type of chips and the like, is possible.
  • Reliable load maintenance i.e. A reliable keeping of the current or power consumption of the drive motor of the mixer even with changing operating conditions of the mixer is not possible with this known system.
  • the invention is therefore based on the object of designing a mixer of the generic type in such a way that it is possible to maintain a constant load.
  • the mixer shown in the drawing has a cylindrical mixing container 1, which consists of an inner trough 2 forming its inner wall and a cooling jacket 3 surrounding the inner trough.
  • the mixing container 1 is closed at its ends by end walls 4, 5.
  • a mixed material inlet funnel 6 is provided, which opens tangentially from above with a mixed material inlet opening 7 into the interior 1 ′ of the mixing container 1 enclosed by the inner trough 2 and the end walls 4 and 5.
  • a tangible discharge hopper 8 8
  • the mixing container 1 is divided in half in the horizontal plane, the upper half 9 and the lower half 10 of the mixing container 1 being held together on one long side by hinge joints 11 and on the opposite long side by toggle locks 12 so that they can be swung open and apart.
  • a mixer shaft 13 is arranged coaxially, which is mounted in bearings 14, 15 and can be driven by a motor 16 by means of V-belts 17 and a V-belt pulley 18 mounted on the mixer shaft 13 in a rotationally fixed manner.
  • Balancing disks 19, 20 are attached to the mixer shaft 13.
  • a cooling water supply pipe 21 is arranged which rotates therewith. Threaded bushings 22 are mounted on the mixer shaft 13, into which hollow mixer tools 23 are screwed.
  • a cooling water pipe 24 branches off from the cooling water supply pipe 21 into each hollow mixing tool 23, so that the cooling water flows through the cooling water supply pipe 21, the further cooling water pipes 24, through the interior of each mixing tool 23 into the annular space located between the cooling water supply pipe 21 and the mixer shaft 13 .
  • the cooling water passes through a cooling water connection 25, which is provided on the left in FIG. 1, into the mixer shaft 13, the cooling water inlet having a and the cooling water outlet are designated by b.
  • a glue feed pipe 26 which does not rotate with it and projects into the hollow mixer shaft 13.
  • glue flows through passage openings 27 into the interior of the hollow mixer shaft 13, from where it is immersed through glue centrifugal pipes 28, which have their outlet openings 29 in the mixture ring 30 built up on the inner wall of the mixing container 1 due to the far supercritical speed of the mixer shaft 13, is thrown out.
  • a separating disc 31 is arranged in the hollow mixer shaft 13 between the mutually adjacent ends of the cooling water supply pipe 21 and the glue supply pipe 26.
  • the adjoining region in which the cooled mixing tools 23 are arranged on the mixer shaft 13 is one Post-mixing zone C.
  • the mixing container 1 together with bearings 14, 15 is supported against the floor 34 by a machine frame 33.
  • Such a mixer is known for example from DE-C 20 57 594 (corresponding to US-A 3 734471) or DE-A2717896.
  • a so-called outer gluing can also be provided, in which in the same mixing container section B glue addition tubes penetrate the cooling jacket 3 and the inner trough 2 from the outside, which also end with their outlet openings in the mixture ring 30.
  • glue addition tubes penetrate the cooling jacket 3 and the inner trough 2 from the outside, which also end with their outlet openings in the mixture ring 30.
  • a mixture outlet opening 35 opens into the outlet outlet funnel 8.
  • This outlet opening 35 can be closed in a manner known per se by means of a throttle valve 36 which is adapted to the course of the inner trough 2 in the region of this outlet outlet opening 35 and which is on its upper, axially parallel edge is articulated by means of swivel joints 37 on the mixing container 1 and can be swiveled downward and to the side (in FIG. 2 to the right) according to the swivel direction arrow 38 by the pressure of the mixed material from the closed position shown in FIG. 2, so that the mixed material outlet opening 35 more or is opened less so that, in turn, the mixing tools 23 moving in the direction of rotation 39 eject the material to be mixed through the material outlet opening 35, which is then more or less open, into the material outlet funnel 8.
  • a bracket 40 On the outside of the throttle valve 36, a bracket 40 is attached, to which a guide rod 41 which extends approximately horizontally outwards when the throttle valve 36 is closed is rigidly attached.
  • the stator housing 43 of a commercially available spindle motor 44 is displaceably mounted on the guide rod 41 by means of a guide bush 42.
  • the spindle 45 of the spindle motor 44 is articulated with its end facing the mixing container 1 on the console 40 with play, the arrangement being such that the guide rod 41 on the one hand and the spindle 45 on the other hand run parallel to one another.
  • a current transformer 52 is connected, which outputs a voltage proportional to the current consumption of the motor 16, which voltage is rectified in a bridge rectifier 53.
  • This DC voltage signal is then fed to a controller 54, where it is converted into a corresponding current in a resistor 55.
  • a potentiometer 56 is connected in parallel with the resistor 55 as a setpoint generator, the output of which is connected to the output of the resistor 55. At this interconnection point 57, the current coming from the setpoint generator and the current coming from the resistor 55 are added together.
  • a negative current is specified in each case from the setpoint generator, while a positive current is specified from potentiometer 55.
  • An operational amplifier 58 is connected downstream of the interconnection point 57 and, depending on whether a positive or negative current difference is applied to the operational amplifier from the interconnection point 57, pumps a corresponding signal to a power amplifier 59 connected downstream of the controller 54.
  • the spindle motor 44 is then controlled by the power amplifier 59 and move its stator housing 43 on the guide rod 41 until the current consumption of the motor 16 again matches the setpoint specified on the potentiometer 56.
  • the power amplifier 59 is followed by a solenoid valve 60 which switches the hydraulic supply either to the liquid line 49 or 50, the other liquid line then serving as the unpressurized return line. Otherwise, the entire circuit is the same.
  • a counterweight can naturally also be provided, which can be displaced by means of a spindle on a guide rod by a motor which is coupled to it, but separately and fixedly attached to the throttle valve 36.
  • the drive is expediently carried out via a countershaft transmission. Since in such a case it would be particularly expedient to provide the motor axially parallel to the swivel joints 37, a bevel drive would also have to be provided in such a case.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Accessories For Mixers (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP80103071A 1979-06-09 1980-06-03 Mischer zum kontinuierlichen Beleimen von Holzspänen, -fasern od. dgl. Expired EP0023253B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103071T ATE1046T1 (de) 1979-06-09 1980-06-03 Mischer zum kontinuierlichen beleimen von holzspaenen, -fasern od. dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792923502 DE2923502A1 (de) 1979-06-09 1979-06-09 Mischer zum kontinuierlichen beleimen von holzspaenen, -fasern o.dgl.
DE2923502 1979-06-09

Publications (2)

Publication Number Publication Date
EP0023253A1 EP0023253A1 (de) 1981-02-04
EP0023253B1 true EP0023253B1 (de) 1982-05-19

Family

ID=6072911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103071A Expired EP0023253B1 (de) 1979-06-09 1980-06-03 Mischer zum kontinuierlichen Beleimen von Holzspänen, -fasern od. dgl.

Country Status (5)

Country Link
US (1) US4316671A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0023253B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS55165133A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE1046T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE2923502A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002099A1 (de) * 1990-01-25 1991-08-01 Draiswerke Gmbh Mischer
US7563017B1 (en) * 2002-09-06 2009-07-21 Bracegirdle Paul E Process for mixing congealable materials such as cement, asphalt, and glue with fibers from waste carpet
JP3908635B2 (ja) * 2002-09-18 2007-04-25 株式会社神戸製鋼所 熱交換機構およびそれを備えたローター
DE202004008213U1 (de) * 2004-05-18 2004-08-05 Hfhn Wood Engineering Gmbh Beleimvorrichtung
DE102011013136A1 (de) * 2011-03-04 2012-10-11 Reiflock Abwassertechnik Gmbh Vorrichtung zur Herstellung einer Polymerlösung
RU2648388C1 (ru) * 2017-07-10 2018-03-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Устройство для производства арболита
DE102018005898A1 (de) * 2018-07-26 2020-01-30 Siempelkamp Maschinen- Und Anlagenbau Gmbh Verfahren zum Mischen von Fasern oder Spänen mit Bindemittel
CN109178505B (zh) * 2018-09-21 2023-09-05 承德石油高等专科学校 一种甘氨酸装袋设备及其使用工艺
CN116160579B (zh) * 2023-02-07 2025-02-28 杭州中策清泉实业有限公司 一种密炼机排胶控制系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077884C2 (de) * 1957-03-22 1962-05-03 Pollux G M B H Schalteinrichtung für Flüssigkeits-Verbundzähler
US3231146A (en) * 1964-04-02 1966-01-25 Simpson Herbert Corp Controlled rate discharge device
DE2113960C3 (de) * 1970-11-24 1981-06-19 Draiswerke Gmbh, 6800 Mannheim Vorrichtung zum kontinuierlichen Mischen von Feststoffen mit Flüssigkeiten
DE2219352C2 (de) 1972-04-20 1982-05-06 Draiswerke Gmbh, 6800 Mannheim Kontinuierlich arbeitender Ringmischer
DE7707372U1 (de) * 1977-03-10 1978-09-14 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade Mischer mit einer auslaufvorrichtung
DE2717896A1 (de) 1977-04-22 1978-10-26 Draiswerke Gmbh Vorrichtung zum kontinuierlichen mischen von feststoffen mit anderen stoffen, insbesondere zum mischen von feststoffen mit fluessigkeiten

Also Published As

Publication number Publication date
US4316671A (en) 1982-02-23
EP0023253A1 (de) 1981-02-04
JPS6354416B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-27
ATE1046T1 (de) 1982-06-15
DE3060442D1 (en) 1982-07-08
JPS55165133A (en) 1980-12-23
DE2923502A1 (de) 1980-12-11

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