DE102016100790B4 - Device for mixing lightweight concrete - Google Patents

Device for mixing lightweight concrete Download PDF

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DE102016100790B4
DE102016100790B4 DE102016100790.0A DE102016100790A DE102016100790B4 DE 102016100790 B4 DE102016100790 B4 DE 102016100790B4 DE 102016100790 A DE102016100790 A DE 102016100790A DE 102016100790 B4 DE102016100790 B4 DE 102016100790B4
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mixing
container
agitator
container lid
swivel arm
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DE102016100790A1 (en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18—Balustrades; Handrails
    • E04F11/181—Balustrades
    • E04F11/1851—Filling panels, e.g. concrete, sheet metal panels
    • E04F11/1853—Glass panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
    • B28C5/26—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers
    • B28C5/30—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers with stirrers held stationary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
    • 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
    • B01F27/55—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers driven by the moving material
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • B01F27/807—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with the stirrer-head pivoting about a horizontal axis to bring it in and out of operative position, e.g. with receptacles pivoting about a horizontal axis for emptying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B01F29/83—Mixers with rotating receptacles rotating about a substantially vertical axis with rotary paddles or arms, e.g. movable out of the receptacle
    • 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
    • B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
    • B01F35/184—Preventing generation of dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
    • E04B2/78—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips
    • E04B2/7854—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips of open profile
    • E04B2/789—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips of open profile of substantially U- or C- section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
    • E04H17/168—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames using panels fitted in grooves of posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18—Balustrades; Handrails
    • E04F11/181—Balustrades
    • E04F11/1817—Connections therefor
    • E04F2011/1819—Connections therefor between balustrade posts and horizontal or sloping balustrade members
    • E04F2011/1821—Connections therefor between balustrade posts and horizontal or sloping balustrade members between balustrade posts and handrails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18—Balustrades; Handrails
    • E04F11/181—Balustrades
    • E04F11/1817—Connections therefor
    • E04F2011/1823—Connections therefor between balustrade filling members, e.g. balusters or panels, and horizontal or sloping balustrade members
    • E04F2011/1825—Connections therefor between balustrade filling members, e.g. balusters or panels, and horizontal or sloping balustrade members between balustrade filling members, e.g. balusters or panels, and handrails
    • E04F2011/1827—Connections therefor between balustrade filling members, e.g. balusters or panels, and horizontal or sloping balustrade members between balustrade filling members, e.g. balusters or panels, and handrails between balusters and handrails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18—Balustrades; Handrails
    • E04F11/181—Balustrades
    • E04F11/1817—Connections therefor
    • E04F2011/1831—Connections therefor between balustrade filling members, e.g. panels, and balustrade posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
    • E04H17/161—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames using wire panels
    • E04H17/163—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames using wire panels using wired panels with frame

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

Vorrichtung zum Mischen von Leichtbeton mit einem um seine stehende Achse auf einem Gestell (1) drehbar gelagerten, antreibbaren Mischbehälter (3), mit einem auf einem Schwenkarm (5) des Gestells (1) vorgesehenen, in den Mischbehälter (3) einschwenkbaren Rührwerk (9) und mit einem vom Schwenkarm (5) getragenen Behälterdeckel (10), dadurch gekennzeichnet, dass der in der eingeschwenkten Arbeitsstellung des Rührwerks (9) von einem Randabschnitt (12) des Mischbehälters (3) unter Freilassung eines Randspalts (11) umschlossene Behälterdeckel (10) einen Verteiler für auf den Behälterdeckel (10) aufgebrachtes Anmachwasser bildet.Device for mixing lightweight concrete with a drivable mixing container (3) rotatably mounted about its standing axis on a frame (1), with an agitator (3) provided on a swivel arm (5) of the frame (1) and pivotable into the mixing container (3) 9) and with a container cover (10) carried by the swivel arm (5), characterized in that the container cover is enclosed by an edge section (12) of the mixing container (3) leaving an edge gap (11) free when the agitator (9) is in the pivoted working position (10) forms a distributor for mixing water applied to the container lid (10).

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Mischen von Leichtbeton mit einem um seine stehende Achse auf einem Gestell drehbar gelagerten, antreibbaren Mischbehälter, mit einem auf einem Schwenkarm des Gestells vorgesehenen, in den Mischbehälter einschwenkbaren Rührwerk und mit einem vom Schwenkarm getragenen Behälterdeckel.The invention relates to a device for mixing lightweight concrete with a drivable mixing container rotatably mounted about its standing axis on a frame, with an agitator provided on a swivel arm of the frame, pivotable into the mixing container and with a container lid carried by the swivel arm.

Um kleinere Chargen von Leichtbeton zu mischen, ist es bekannt, einen um seine Achse drehend antreibbaren Mischbehälter vorzusehen, in den die für die Herstellung des Leichtbetons vorgesehene Trockenmischung an Zement und Zuschlagstoffen eingebracht wird. Das Mischen der Trockenmischung mit Anmachwasser erfolgt mit Hilfe eines Rührwerks, das in einem die antreibbare Aufnahme des Mischbehälters aufweisenden Gestell drehfest gehalten wird, sodass sich zwischen dem drehenden Mischbehälter und dem stillstehenden Rührwerk eine das Mischen des Leichtbetons bedingende Relativbewegung ergibt. Nachteilig bei diesen bekannten Mischvorrichtungen ist vor allem, dass aufgrund der pulvrigen Bestandteile der Trockenmischung, insbesondere des Zementanteils, vor einer entsprechenden Durchfeuchtung der Trockenmischung mit einer umweltbelastenden Staubentwicklung zu rechnen ist. Zur Verringerung einer solchen Staubentwicklung wird der Anteil des Anmachwassers erhöht, was sich allerdings nachteilig auf die Festigkeit und die Abbindegeschwindigkeit des Leichtbetons auswirkt, ohne die Staubbelastung unterbinden zu können.In order to mix smaller batches of lightweight concrete, it is known to provide a mixing container which can be driven to rotate about its axis and into which the dry mix of cement and aggregates provided for the production of the lightweight concrete is introduced. The mixing of the dry mixture with the mixing water takes place with the help of an agitator, which is held in a non-rotatable frame with the drivable receptacle of the mixing container, so that there is a relative movement between the rotating mixing container and the stationary agitator. The main disadvantage of these known mixing devices is that, due to the powdery constituents of the dry mix, in particular the cement portion, before the dry mix is appropriately moistened, the development of environmentally harmful dust is to be expected. To reduce such dust development, the proportion of mixing water is increased, which, however, has a disadvantageous effect on the strength and the setting speed of the lightweight concrete, without being able to prevent the dust exposure.

Um eine Staubentwicklung während eines Mischvorgangs zu verhindern, ist durch die gattungsgemäße FR 1 061 249 A bekannt, auf dem das Rührwerk für den Mischbehälter aufnehmenden Schwenkarm einer Mischvorrichtung einen von der Welle des Rührwerks durchsetzten Deckel für den Mischbehälter vorzusehen, der den Mischbehälter in der Schließstellung außen umgreift. Nachteilig ist allerdings, dass das Anmachwasser nicht nach Bedarf kontinuierlich zugegeben werden kann,In order to prevent the development of dust during a mixing process, the generic FR 1 061 249 A known to provide on the swivel arm of a mixing device that receives the agitator for the mixing container, a cover for the mixing container penetrated by the shaft of the agitator and which surrounds the mixing container on the outside in the closed position. The disadvantage, however, is that the mixing water cannot be added continuously as required,

Der Erfindung liegt somit die Aufgabe zugrunde, eine Vorrichtung zum Mischen von Leichtbeton so auszugestalten, dass eine Umweltbelastung durch Zementstaub mit einfachen konstruktiven Mitteln weitgehend vermieden werden kann, ohne auf eine bedarfsgerechte, kontinuierliche Zuführung von Anmachwasser verzichten zu müssen.The invention is therefore based on the object of designing a device for mixing lightweight concrete in such a way that environmental pollution from cement dust can be largely avoided with simple constructional means without having to forego the continuous supply of mixing water as required.

Ausgehend von einer Vorrichtung der eingangs geschilderten Art löst die Erfindung die gestellte Aufgabe dadurch, dass der in der eingeschwenkten Arbeitsstellung des Rührwerks von einem Randabschnitt des Mischbehälters unter Freilassung eines Randspalts umschlossene Behälterdeckel einen Verteiler für auf den Behälterdeckel aufgebrachtes Anmachwasser bildet.Based on a device of the type described above, the invention solves the problem in that the container lid, which is enclosed by an edge section of the mixing container leaving an edge gap in the pivoted working position of the agitator, forms a distributor for mixing water applied to the container lid.

Da aufgrund dieser Maßnahmen das auf den Behälterdeckel aufgebrachte Anmachwasser über den Deckelumfang verteilt durch den Ringspalt zwischen dem Behälterdeckel und dem Randabschnitt des Behältermantels in Form eines Wasservorhangs in den Mischbehälter fließt, wird ein Staubaustritt aus dem Mischbehälter durch den Randspalt zwischen dem Behälterdeckel und dem Behältermantel weitgehend unterbunden. Dazu kommt, dass wegen des Einbringens des Anmachwassers im Bereich des Behältermantels zunächst die Trockenmischung im Bereich des Randspalts eine Durchfeuchtung erfährt und folglich die Staubentwicklung im Bereich des Randspalts vermieden wird, was sich vorteilhaft auf die angestrebte Begrenzung der Staubentwicklung auf das Behälterinnere auswirkt. Es kann daher mit einem für die Festigkeit und das Abbinden des Leichtbetons vorteilhaften, vergleichsweise niedrigen Anteil an Anmachwasser Leichtbeton ohne Umweltbelastung durch Zementstaub gemischt werden, und zwar unter Einhaltung kurzer Mischzeiten.As a result of these measures, the mixing water applied to the container lid, distributed over the circumference of the lid, flows through the annular gap between the container lid and the edge section of the container jacket in the form of a water curtain into the mixing container, dust will escape from the mixing container through the edge gap between the container lid and the container jacket prevented. In addition, due to the introduction of the mixing water in the area of the container jacket, the dry mixture in the area of the edge gap first experiences moisture penetration and consequently the development of dust in the area of the edge gap is avoided, which has an advantageous effect on the desired limitation of dust generation on the inside of the container. It can therefore be mixed with a comparatively low proportion of mixing water, which is advantageous for the strength and setting of the lightweight concrete, without environmental pollution from cement dust, while maintaining short mixing times.

Die Anordnung des Behälterdeckels auf dem Schwenkarm für das Rührwerk kann unterschiedlich ausfallen, weil es lediglich darauf ankommt, den Mischbehälter in der Arbeitsstellung des Rührwerks mit dem Behälterdeckel unter Freilassung eines Randspalts nach oben abzudecken. Besonders einfache Konstruktionsverhältnisse ergeben sich allerdings, wenn insbesondere der Deckel auf einer Tragachse des Rührwerks befestigt ist. In diesem Fall bedarf es nämlich keiner zusätzlichen Befestigungsmittel für den Behälterdeckel. Ist der Behälterdeckel insbesondere durchsichtig ausgebildet, so kann der Mischvorgang von außen in Augenschein genommen werden.The arrangement of the container lid on the swivel arm for the agitator can turn out differently, because it is only important to cover the mixing container in the working position of the agitator with the container lid leaving a gap at the top. Particularly simple construction conditions arise, however, if in particular the cover is attached to a support shaft of the agitator. In this case there is no need for additional fastening means for the container lid. If the container lid is designed in particular to be transparent, the mixing process can be viewed from the outside.

Das Anmachwasser kann in der erforderlichen Menge frei auf den als Verteiler wirkenden Behälterdeckel aufgegossen werden. Weist jedoch der Schwenkarm insbesondere eine über dem Behälterdeckel mündende Leitung für das Anmachwasser auf, so kann die Verteilung des Anmachwassers über den Behälterdeckel durch den vorgegebenen Zufluss des Anmachwassers auf den Behälterdeckel unterstützt werden. Eine weitere Möglichkeit, die Verteilung des Anmachwassers über den Umfangsrand des Behälterdeckels zu verbessern, besteht darin, den Behälterdeckel insbesondere als Deckelplatte mit Leitrippen für das Anmachwasser auszubilden, was zugleich einfache Konstruktionsbedingungen mit sich bringt.The mixing water can be poured freely in the required amount onto the container lid, which acts as a distributor. However, if the swivel arm has in particular a line for the mixing water opening above the container lid, the distribution of the mixing water via the container lid can be supported by the predetermined inflow of the mixing water onto the container lid. Another possibility of improving the distribution of the mixing water over the peripheral edge of the container lid is to design the container lid in particular as a cover plate with guide ribs for the mixing water, which at the same time entails simple construction conditions.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt, und zwar wird eine erfindungsgemäße Vorrichtung zum Mischen von Leichtbeton in einem vereinfachten Längsschnitt gezeigt.In the drawing, the subject matter of the invention is shown by way of example, namely a device according to the invention for mixing lightweight concrete is shown in a simplified longitudinal section.

Die dargestellte Vorrichtung zum Mischen von Leichtbeton weist ein vorzugsweise verfahrbares Gestell 1 mit einer antreibbaren Drehaufnahme 2 für einen Mischbehälter 3 auf. Seitlich neben der Drehaufnahme 2 ist das Gestell 1 mit einem Steher 4 versehen, an dem ein Schwenkarm 5 angelenkt ist, der vorteilhaft mit Unterstützung einer Gewichtsausgleichsfeder 6 von Hand aus um die Anlenkachse 7 zwischen einer in vollen Linien gezeichneten, eingeschwenkten Arbeitsstellung und einer strichpunktiert angedeuteten, hochgeschwenkten Öffnungsstellung verschwenkt werden kann. Anstelle der Gewichtsausgleichsfeder 6 könnte auch ein Schwenktrieb treten.The device shown for mixing lightweight concrete has a preferably movable frame 1 with a drivable rotary mount 2 for a mixing container 3 on. On the side next to the rotary mount 2 is the frame 1 with a stayer 4th provided on which a swivel arm 5 is hinged, which is advantageous with the support of a counterbalance spring 6th by hand around the pivot axis 7th can be pivoted between a pivoted working position drawn in full lines and a pivoted upward pivoted position indicated by dash-dotted lines. Instead of the counterbalance spring 6th a swivel drive could also occur.

Der Schwenkarm 5 nimmt eine Tragachse 8 für ein Rührwerk 9 auf, das drehfest gegenüber dem Gestell 1 gehalten ist, sodass sich mit dem Antrieb der Drehaufnahme 2 eine Relativdrehung zwischen dem Mischbehälter 3 und dem Rührwerk 9 ergibt, das durch das vom Mischbehälter 3 mitgenommene Mischgut bewegt wird. Die Tragachse 8 wird dabei vorzugsweise mittels eines Splints lösbar in einer Steckaufnahme drehfest gehalten, um das Rührwerk 9 zum Reinigen vom Schwenkarm 5 abnehmen zu können,The swivel arm 5 takes a support axle 8th for an agitator 9 on, the non-rotatable opposite the frame 1 is held so that the rotary mount with the drive 2 a relative rotation between the mixing container 3 and the agitator 9 results from that by the mixing tank 3 entrained mix is moved. The supporting axis 8th is preferably held releasably in a plug-in receptacle by means of a split pin, around the agitator 9 for cleaning the swivel arm 5 to be able to lose weight

Zum Unterschied zu herkömmlichen Mischvorrichtungen dieser Art ist dem Schwenkarm 5 ein Behälterdeckel 10 zugeordnet, der vorzugsweise auf der Tragachse 8 des Rührwerks 9 gelagert ist, und zwar zu Reinigungszwecken in vorteilhafter Weise ebenfalls lösbar. Hierfür bietet sich ein Bajonettverschluss an, mit dessen Hilfe der Behälterdeckel auf der Tragachse axial festgelegt wird. Der Behälterdeckel 10, der als durchsichtige Deckelplatte ausgebildet sein kann, die gegebenenfalls mit Leitrippen für das auf den Behälterdeckel 10 aufgebrachte Anmachwasser versehen ist, schließt den Mischbehälter 3 in der eingeschwenkten Arbeitsstellung mit Ausnahme eines Randspalts 11 nach oben ab, der sich zwischen dem Behälterdeckel 10 und einem oberen Randabschnitt 12 des Behältermantels ergibt.In contrast to conventional mixing devices of this type, the swivel arm 5 a container lid 10 assigned, preferably on the support axis 8th of the agitator 9 is stored, specifically also releasable for cleaning purposes in an advantageous manner. A bayonet lock is available for this, with the aid of which the container lid is axially fixed on the support axis. The container lid 10 , which can be designed as a transparent cover plate, optionally with guide ribs for the on the container lid 10 applied mixing water is provided, closes the mixing container 3 in the swiveled working position with the exception of a marginal gap 11 upwards, which is between the container lid 10 and an upper rim portion 12 of the container jacket results.

Wird nach der Befüllung des Mischbehälters 3 mit der Trockenmischung für den Leichtbeton der Schwenkarm 5 aus der hochgeschwenkten Offenstellung in die Arbeitsstellung eingeschwenkt, so kann das Anmachwasser in der erforderlichen Menge auf den Behälterdeckel 10 aufgegossen werden, der für das Anmachwasser einen Verteiler bildet, sodass das Anmachwasser über den Umfangsrand des Behälterdeckels 10 verteilt durch den Randspalt 11 unter Ausbildung eines Wasservorhangs in den Mischbehälter 3 mit der Wirkung fließt, dass ein im Mischbehälter 3 rührungsbedingt aufgewirbelter Staub aus Zement und feinkörnigen Zuschlagstoffen der Trockenmischung nicht durch den Randspalt 11 aus dem Mischbehälter 3 austreten kann. Die zunächst vorrangige Befeuchtung der in den Mischbehälter 3 eingefüllten Trockenmischung im Bereich des Randspalts 11 mit dem zulaufenden Anmachwasser unterbindet einen Staubanfall im Bereich des Randspalts, was den weitgehenden Staubabschluss des Mischbehälters 3 durch den Behälterdeckel 10 trotz des freibleibenden Randspalts 11 unterstützt.Used after the mixing tank has been filled 3 with the dry mix for the lightweight concrete the swivel arm 5 Swiveled from the swiveled open position into the working position, the mixing water can be poured onto the container lid in the required amount 10 be poured, which forms a distributor for the mixing water, so that the mixing water over the peripheral edge of the container lid 10 distributed through the edge gap 11 with the formation of a water curtain in the mixing tank 3 with the effect that one flows in the mixing tank 3 Dust from cement and fine-grained aggregates of the dry mix that is whirled up due to the contact does not pass through the edge gap 11 from the mixing container 3 can escape. The first priority humidification in the mixing tank 3 Filled dry mix in the area of the edge gap 11 with the incoming mixing water prevents the accumulation of dust in the area of the edge gap, which means that the mixing container is largely sealed off from dust 3 through the container lid 10 despite the remaining gap in the edge 11 supported.

Claims (5)

Vorrichtung zum Mischen von Leichtbeton mit einem um seine stehende Achse auf einem Gestell (1) drehbar gelagerten, antreibbaren Mischbehälter (3), mit einem auf einem Schwenkarm (5) des Gestells (1) vorgesehenen, in den Mischbehälter (3) einschwenkbaren Rührwerk (9) und mit einem vom Schwenkarm (5) getragenen Behälterdeckel (10), dadurch gekennzeichnet, dass der in der eingeschwenkten Arbeitsstellung des Rührwerks (9) von einem Randabschnitt (12) des Mischbehälters (3) unter Freilassung eines Randspalts (11) umschlossene Behälterdeckel (10) einen Verteiler für auf den Behälterdeckel (10) aufgebrachtes Anmachwasser bildet.Device for mixing lightweight concrete with a drivable mixing container (3) rotatably mounted about its standing axis on a frame (1), with an agitator (3) provided on a swivel arm (5) of the frame (1) and pivotable into the mixing container (3) 9) and with a container cover (10) carried by the swivel arm (5), characterized in that the container cover is enclosed by an edge section (12) of the mixing container (3) leaving an edge gap (11) free when the agitator (9) is in the pivoted working position (10) forms a distributor for mixing water applied to the container lid (10). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Behälterdeckel (10) auf einer Tragachse (8) des Rührwerks (9) befestigt ist.Device according to Claim 1 , characterized in that the container lid (10) is attached to a support axis (8) of the agitator (9). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Behälterdeckel (10) durchsichtig ausgebildet ist.Device according to Claim 1 or 2 , characterized in that the container lid (10) is transparent. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Schwenkarm (5) eine über dem Behälterdeckel (10) mündende Leitung für das Anmachwasser aufweist.Device according to one of the Claims 1 to 3 , characterized in that the swivel arm (5) has a line for the mixing water which opens above the container cover (10). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Behälterdeckel (10) eine Deckelplatte mit Leitrippen für das Anmachwasser aufweist.Device according to one of the Claims 1 to 4th , characterized in that the container lid (10) has a cover plate with guide ribs for the mixing water.
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DE102017206660B4 (en) * 2017-04-20 2022-11-10 Sonocrete GmbH Concrete and/or mortar mixing device and method for mixing concrete and/or mortar
CN106965318B (en) * 2017-05-05 2019-04-09 重庆中兴商品混凝土有限责任公司 A kind of mixing plant for concrete stirring
CN107160562A (en) * 2017-06-22 2017-09-15 汪建文 A kind of mixing plant suitable for small-scale operation
CN109955374A (en) * 2017-12-25 2019-07-02 宋晓莉 A kind of concrete Full-automatic uniform mixing plant
CN108556138A (en) * 2018-01-29 2018-09-21 海宁杰盛新材料有限公司 A kind of geosynthetics stirring homogenizer
CN108943408A (en) * 2018-07-20 2018-12-07 陈婷 A kind of road and bridge construction concrete mixing arrangement
CN112076704A (en) * 2020-09-02 2020-12-15 衢州英特高分子材料有限公司 Vertical reaction kettle with transverse stirring shaft and vertical stirring shaft

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GB857399A (en) * 1958-10-21 1960-12-29 Edward Benton & Company Ltd Improvements in or relating to apparatus for mixing concrete and other materials

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FR1061249A (en) * 1952-08-05 1954-04-09 Improvements to mixing equipment
GB857399A (en) * 1958-10-21 1960-12-29 Edward Benton & Company Ltd Improvements in or relating to apparatus for mixing concrete and other materials

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