DE19957934A1 - Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing. - Google Patents

Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing.

Info

Publication number
DE19957934A1
DE19957934A1 DE19957934A DE19957934A DE19957934A1 DE 19957934 A1 DE19957934 A1 DE 19957934A1 DE 19957934 A DE19957934 A DE 19957934A DE 19957934 A DE19957934 A DE 19957934A DE 19957934 A1 DE19957934 A1 DE 19957934A1
Authority
DE
Germany
Prior art keywords
mixer
gap
round
housing
dosing unit
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.)
Withdrawn
Application number
DE19957934A
Other languages
German (de)
Inventor
Thilo Lehmann
Karl Grimm
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.)
LEHMANN MASCHB GmbH
Original Assignee
LEHMANN MASCHB 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 LEHMANN MASCHB GmbH filed Critical LEHMANN MASCHB GmbH
Priority to DE19957934A priority Critical patent/DE19957934A1/en
Publication of DE19957934A1 publication Critical patent/DE19957934A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • 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
    • 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
    • B01F35/751—Discharging by opening a gate, e.g. using discharge paddles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Accessories For Mixers (AREA)

Abstract

A mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing. The arm can move over a gap in the floor, during which a predetermined amount of non-pourable material can pass into a catchment vessel.

Description

Die Erfindung betrifft einen Chargenmischer, der mit einer Dosiervorrichtung versehen ist und insbesondere zur Trockenmischung von Faserstoffen mit mineralischen und anderen Zusatzstoffen dient, was z. B. als Substrat zur Begrünung von Böschungen und Baufolgeflächen Verwendung findet.The invention relates to a batch mixer with a metering device is provided and in particular for dry mixing of fibrous materials with mineral and other additives serve what e.g. B. as a substrate for greening embankments and Subsequent construction areas are used.

Es sind verschiedene Verfahren zur Rekultivierung von erosionsgefährdeten Flächen bekannt, bei denen Faserstoffe als Substratgrundlage verwendet werden, die aber meist wie z. B. nach EP 0438062 B1 oder DE-A-29 22 121 mit Wasser versetzt als flüssige pumpfähige Pulpe in speziellen Behältern angesetzt wird und nur bedingt spritzfähig ist. Sie wird deshalb meist nur aufgeschwemmt. Die flüssige Aufbereitung ist jedoch aufwendig, und die Ausbringung besonders an steilen Böschungen problematisch.There are various methods of recultivating areas at risk of erosion where Fibers are used as the substrate base but mostly like B. according to EP 0438062 B1 or DE-A-29 22 121 mixed with water as a liquid pumpable Pulp is put in special containers and only is conditionally sprayable. Therefore, it is usually only washed up. However, the liquid preparation is complex, and the output particularly on steep Embankments problematic.

Nach 197 41 055.3 ist ein Verfahren beschrieben, bei dem die aus Holzfaserstoff als Grundsubstanz bestehende Substratmischung trocken mittels Druckluft bis zu einer Spritzdüse gefördert wird, wo das für einen haltbaren Substratauftrag erforderliche Wasser während des Spritzvorganges zugegeben wird. Bei der Bearbeitung und Dosierung der Trockenmischung ist jedoch mit folgenden Problemen zu rechnen. Ein trockener Faserstoff ist in der Regel nicht rieselfähig, sodass ein selbsttätiges Nachrutschen bei der Entnahme aus einem Vorratsbehälter nur sehr unvollkommen erfolgt. Weiterhin besteht ein Risiko, dass besonders bei mineralischen Zusätzen eine Entmischung erfolgt.According to 197 41 055.3, a method is described in that of wood fiber as the basic substance existing substrate mixture dry using compressed air up to a spray nozzle, where that is for you water required for durable substrate application the spraying process is added. In the Processing and dosing of the dry mix is however, the following problems can be expected. On dry fiber is usually not free-flowing, so that an automatic slipping at the Removal from a storage container only very much imperfect. There is also a risk that especially with mineral additives Separation takes place.

Durch die vorliegende Erfindung werden diese Nachteile weitgehend beseitigt, in dem Mischer und Dosierer eine Einheit bilden, wobei die zu dosierende Menge in weiten Grenzen mittels einer einfachen Vorrichtung variiert werden kann.These disadvantages are overcome by the present invention largely eliminated in the mixer and dosing one Form unit, the amount to be dosed broad Limits varied using a simple device can be.

Im folgenden Beispiel soll anhand der Zeichnung die vorliegende Erfindung näher erläutert werden.In the following example, the present invention will be explained in more detail.

In einem üblichen runden Mischergehäuse A sind auf einer zentralen Welle B hintereinander vier Mischerarme C befestigt, an deren Enden pflugscharartige Bleche angebracht sind. Die Mischerarme sind jeweils um 90° versetzt auf der Welle angeordnet. An der tiefsten Stelle des Mischers befindet sich über die ganze Breite ein Spalt E, dessen Grösse durch einen Schieber F verändert werden kann. Mit der Rotation der Wette bewegt sich nach jeweils einer viertel Drehung ein Mischerarm über den Spalt E und befördert eine bestimmte Menge Mischgut in den darunter befindlichen trichterförmigen Zulauf D zur Zellrad­ schleuse G. Die Vorderwand des Trichters D besteht zweckmäßig aus einem durchsichtigen Material oder besitzt zumindest im unteren Teil ein Fenster. Dadurch kann durch einfache Sichtprüfung die Spaltgröße mittels Schieber F so eingestellt werden, dass die Zellradschleuse G optimal beaufschlagt wird und Materialanhäufungen im Trichter vermieden werden.In a usual round mixer housing A are on a central shaft B four in a row Mixer arms C attached to the ends ploughshare-like sheets are attached. The Mixer arms are each offset by 90 ° on the shaft arranged. Located at the lowest point of the mixer there is a gap E across the entire width, the size of which can be changed by a slider F. With the The rotation of the bet moves every quarter Rotate a mixer arm across gap E and conveyed a certain amount of mix in the ones below located funnel-shaped inlet D to the cellular wheel  lock G. The front wall of the funnel D exists expediently made of a transparent material or has a window at least in the lower part. Thereby can easily determine the gap size using a simple visual inspection Slider F can be set so that the Cell wheel lock G is optimally acted upon and Material accumulations in the funnel can be avoided.

Nach der Zellradschleuse wird das Mischgut dann mittels Druckluft weiterbefördert.After the rotary valve, the mix is then transported by compressed air.

Claims (4)

1. Chargenmischer mit Dosiervorrichtung, dadurch gekennzeichnet, dass sich in einem vorzugsweise runden Mischergehäuse auf einer Welle angeordnete Mischerarme über einem am Boden befindlichen Spalt bewegen und dabei eine bestimmte Menge nicht rieselfähiges Mischgut, z. B. Faserstoff durch den Spalt in eine Auffangvorrichtung befördern.1. Batch mixer with metering device, characterized in that mixer arms arranged on a shaft, preferably in a round mixer housing, move over a gap located on the bottom and thereby a certain amount of non-free-flowing mix, eg. B. convey pulp through the gap into a collecting device. 2. Chargenmischer mit Dosiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Mischerarme auf der Welle radial so versetzt sind, dass sie nacheinander Mischgut auswerfen und so ein annähernd kontinuierlicher Austrag erfolgt.2. Batch mixer with metering device according to claim 1, characterized characterized in that the mixer arms are radially offset on the shaft are that they eject mixed material one after the other and so one discharge takes place almost continuously. 3. Chargenmischer mit Dosiervorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass der Spalt durch einen Schieber oder einer anderen geeigneten Vorrichtung in seiner Grösse veränderbar ist, um die auszutragende Menge zu variieren.3. batch mixer with dosing device according to claim 1 and 2, characterized in that the gap by a slide or another suitable device can be changed in size is to vary the amount to be discharged. 4. Chargenmischer mit Dosiervorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass der trichterförmige Zulauf zur Zellradschleuse ein Sichtfenster besitzt, durch das die ausgetragene Menge beobachtet werden kann, um die Spaltgrösse mittels des Schiebers optimal einzustellen.4. batch mixer with dosing device according to claim 1 to 3, characterized in that the funnel-shaped inlet to the The rotary valve has a viewing window through which the discharged Amount can be observed to determine the gap size using the Optimally adjust slider.
DE19957934A 1999-12-01 1999-12-01 Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing. Withdrawn DE19957934A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19957934A DE19957934A1 (en) 1999-12-01 1999-12-01 Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19957934A DE19957934A1 (en) 1999-12-01 1999-12-01 Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing.

Publications (1)

Publication Number Publication Date
DE19957934A1 true DE19957934A1 (en) 2001-11-15

Family

ID=7931063

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19957934A Withdrawn DE19957934A1 (en) 1999-12-01 1999-12-01 Mixer and dosing unit for a material charge, comprises a mixer arm located on a shaft inside a round mixer housing.

Country Status (1)

Country Link
DE (1) DE19957934A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166430A1 (en) * 1971-08-20 1974-01-10 Bhs Bayerische Berg Double shaft,forced circulation mixer - having a self supporting mixing vessel
DE3337437A1 (en) * 1983-10-14 1985-05-02 Mathis System-Technik GmbH, 7844 Neuenburg BATCH MIXER
DE4112663A1 (en) * 1991-04-18 1992-10-22 Elba Werk Maschinen Gmbh & Co Discharge arrangement for twin shaft positive displacement mixer - has a discharge port with an externally opening flap cover in the region of the circumferential intersection of the half troughs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166430A1 (en) * 1971-08-20 1974-01-10 Bhs Bayerische Berg Double shaft,forced circulation mixer - having a self supporting mixing vessel
DE3337437A1 (en) * 1983-10-14 1985-05-02 Mathis System-Technik GmbH, 7844 Neuenburg BATCH MIXER
DE4112663A1 (en) * 1991-04-18 1992-10-22 Elba Werk Maschinen Gmbh & Co Discharge arrangement for twin shaft positive displacement mixer - has a discharge port with an externally opening flap cover in the region of the circumferential intersection of the half troughs

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