DE1277819B - Device for continuous mixing of powdery to fine-grained bulk material - Google Patents
Device for continuous mixing of powdery to fine-grained bulk materialInfo
- Publication number
- DE1277819B DE1277819B DE1966SC038694 DESC038694A DE1277819B DE 1277819 B DE1277819 B DE 1277819B DE 1966SC038694 DE1966SC038694 DE 1966SC038694 DE SC038694 A DESC038694 A DE SC038694A DE 1277819 B DE1277819 B DE 1277819B
- Authority
- DE
- Germany
- Prior art keywords
- mixing
- mixing container
- shaft
- container
- feed pump
- 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- Withdrawn
Links
Classifications
-
- 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
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
- B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. Cl.:Int. Cl .:
BOIfBOIf
Deutsche KI.: 12 e - 4/01 German KI .: 12 e - 4/01
Nummer: 1277 819Number: 1277 819
Aktenzeichen: P 12 77 819.7-23 (Sch 38 694)File number: P 12 77 819.7-23 (Sch 38 694)
Anmeldetag: 18. März 1966 Filing date: March 18, 1966
Auslegetag: 19. September 1968Opening day: September 19, 1968
Gegenstand des Hauptpatents ist eine Vorrichtung zum kontinuierlichen Mischen von pulverförmigem bis feinkörnigem Schüttgut, insbesondere Baustoffen, und einer Flüssigkeit, mit einem das Schüttgut aufnehmenden, im wesentlichen lotrecht angeordneten Vorratsbehälter, einem dem Vorratsbehälter unmittelbar nachgeschalteten, langgestreckten Mischbehälter, der eine Welle mit daran befestigten Mischwerkzeugen und mit in Längsrichtung der Welle sich erstreckenden durchgehenden Erhebungen zur Entlüftung des entstehenden Gemisches aufweist und der mit einem regelbaren Flüssigkeitsanschluß versehen ist, ferner mit einer dem Mischbehälter nachgeschalteten Förderpumpe, wobei der Mischbehälter und die Förderpumpe mit annähernd horizontaler Achse miteinander fluchtend unterhalb des Vorratsbehälters angeordnet sind.The subject of the main patent is a device for the continuous mixing of powdery up to fine-grained bulk material, especially building materials, and a liquid with a bulk material absorbing, substantially vertically arranged storage container, one of the storage container directly downstream, elongated mixing container, which has a shaft with mixing tools attached to it and with continuous elevations extending in the longitudinal direction of the shaft for ventilation of the resulting mixture and which is provided with a controllable fluid connection is, furthermore with a feed pump connected downstream of the mixing container, the mixing container and the Feed pump with an approximately horizontal axis arranged in alignment with one another below the storage container are.
Dem Hauptpatent lag die Aufgabe zugrunde, eine Mischanlage zu entwickeln, bei der der Mischbehälter in kompakter Bauweise dem Vorratsbehälter unmittelbar nachgeschaltet ist, bei der aber gleichzeitig Maßnahmen getroffen sind, um die schädlichen Folgen der Lufteinschlüsse zu vermeiden.The main patent was based on the task of developing a mixing plant in which the mixing container in a compact design, the storage container is connected immediately afterwards, but at the same time Measures are taken to avoid the harmful consequences of air inclusions.
In weiterer Ausgestaltung des Gegenstandes des Hauptpatents wird gemäß der Erfindung vorgesehen, den Mischbehälter an seinem höher gelegenen Ende mit einer Entlüftungsöffnung zu versehen. Die sich beim Mischvorgang abscheidende Luft kann demzufolge bereits aus dem höher gelegenen Ende des Mischbehälters austreten, braucht also nicht den längeren Weg durch den Vorratsbehälter zu nehmen.In a further embodiment of the subject matter of the main patent, it is provided according to the invention, to provide the mixing container with a vent opening at its higher end. Which During the mixing process separating air can therefore already from the higher end of the Exit mixing container, so does not need to take the longer route through the storage container.
Auf Grund einer derartigen Ausbildung kann der Mischbehälter unter einer leichten Neigung gegen die Horizontale angeordnet werden, so daß sich die Bauhöhe der gesamten Vorrichtung verringert und damit die Standfestigkeit erhöht. Um insbesondere bei einer solchen Ausbildung sicherzustellen, daß lediglich die abgeschiedene Luft durch die Entlüftungsöffnung nach außen entweicht, nicht aber auch ein Teil des Gemisches, wird gemäß der Erfindung vorgesehen, die Entlüftungsöffnung oberhalb der Anschlußstelle von Vorratsbehälter und Mischbehälter anzuordnen.Due to such a design, the mixing container can be slightly inclined against the Be arranged horizontally, so that the overall height of the entire device is reduced and thus the stability increases. In order to ensure in particular in such a training that only the separated air escapes through the ventilation opening to the outside, but not part of the Mixture is provided according to the invention, the vent opening above the connection point to be arranged by the storage container and mixing container.
Zwar könnte das in den Mischbehälter eintretende Gut seinen Weg auch grundsätzlich in ansteigender Richtung nehmen, etwa durch als Förderschnecke ausgebildete Mischwerkzeuge; um jedoch die abgeschiedene Luft so früh wie möglich nach dem Eintritt in den Mischbehälter abzuscheiden, ist es zweckmäßig, das eintrittsseitige Ende des Mischbehälters höher zu legen als das austrittsseitige, mit anderen Worten also, den Mischbehälter zur Förderpumpe hin geneigt anzuordnen.It is true that the material entering the mixing container could also fundamentally increase its path Take direction, for example by mixing tools designed as a screw conveyor; however, to the secluded To separate air as soon as possible after entering the mixing tank, it is advisable to to place the inlet end of the mixing container higher than the outlet end with others So words to arrange the mixing container inclined towards the feed pump.
Vorrichtung zum kontinuierlichen Mischen von pulverförmigem bis feinkörnigem SchüttgutDevice for continuous mixing of powdery to fine-grained bulk material
Zusatz zum Patent: 1 244 723Addendum to the patent: 1 244 723
Anmelder:Applicant:
Dipl.-Ing. Karl Schlecht,Dipl.-Ing. Karl Bad,
7024 Bernhausen, Echterdinger Str. 917024 Bernhausen, Echterdinger Str. 91
Als Erfinder benannt:Named as inventor:
Dipl.-Ing. Karl Schlecht, 7024 BernhausenDipl.-Ing. Karl Schlecht, 7024 Bernhausen
Zum Zweck eines leichten Aufbaus der Mischwerkzeuge und einer raschen Behebung etwa auftretender Störungen ist es aber vorteilhaft, den Mischbehälter und die Förderpumpe unter ZwischenfügungFor the purpose of an easy assembly of the mixing tools and a quick remedy of any occurring Disturbances, however, it is advantageous to interpose the mixing container and the feed pump
as eines austauschbaren Flansches unmittelbar zusammenzuschalten. as an interchangeable flange.
Gemäß der Erfindung wird ferner vorgesehen, die Mischwerkzeuge als ein die Welle wenigstens auf einem Teil ihrer Länge umgehendes und zur Welle einen radialen Abstand aufweisendes, schraubenlinienförmiges Band auszubilden. Dabei wird das zu mischende Gut durch die mittels dieses Schraubenbandes übertragenen Zentrifugalkräfte von der Welle weggeschleudert, die Luft aber sammelt sich auf Grund ihres geringeren spezifischen Gewichtes im Bereich der Mischerwelle, und kann auf Grund des radialen Abstandes des Bandes von der Welle ungehindert entlang der Wellenachse zur Entlüftungsöffnung strömen. Der Abscheidungsvorgang wird dadurch begünstigt, daß sich im Bereich der Welle analog zu den Verhältnissen in einem Hydrozyklon ein Unterdruck ausbildet.According to the invention it is further provided that the mixing tools as a shaft at least a part of its length bypassing and radially spaced from the shaft, helical Train band. In doing so, the material to be mixed is pulled through the means of this screw belt transmitted centrifugal forces are thrown away from the shaft, but the air collects Due to their lower specific weight in the area of the mixer shaft, and due to the radial distance of the band from the shaft unimpeded along the shaft axis to the vent opening stream. The deposition process is favored by the fact that it is in the area of the shaft creates a negative pressure analogous to the conditions in a hydrocyclone.
Bei der zuletzt genannten Ausführungsform ist es vorteilhaft, das Band nur an dem der Förderpumpe abgewandten Ende der Welle vorzugsweise elastisch zu befestigen; während des Betriebs legt sich das Schraubenband auf Grund der Fliehkraft unter leichtem Druck gegen die innere Wandfläche des im allgemeinen rohrförmigen Mischbehälters, so daß sich zwischen Schraubenband und innerer Wandfläche kein Spalt von nennenswerter Breite einstellen kann und das zu mischende Gut an dieser inneren Wand-In the last-mentioned embodiment, it is advantageous to apply the belt only to that of the feed pump to fasten the opposite end of the shaft, preferably elastically; during operation, that subsides Screw band due to the centrifugal force under light pressure against the inner wall surface of the general tubular mixing container, so that there is between screw band and inner wall surface no gap of appreciable width can be set and the material to be mixed on this inner wall
809 617/486809 617/486
fläche nach dem Ausgang des Mischbehälters hin wandert. Hierdurch bedarf es keiner Abstandhalter zwischen Schraubenband und Mischerwelle, und somit tritt auch kein Paßproblem zwischen dem Schraubenband und der inneren Wandfläche des Mischbehälters auf.area moves towards the exit of the mixing container. This means that no spacers are required between screw belt and mixer shaft, and thus no problem of fit between the Screw tape and the inner wall surface of the mixing container.
Die Erfindung ist an Hand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Darin zeigtThe invention is explained in more detail using an exemplary embodiment shown in the drawing. In it shows
F i g. 1 eine Mischvorrichtung im lotrechten Schnitt längs der Mischbehälterachse undF i g. 1 shows a mixing device in vertical section along the axis of the mixing container and
F i g. 2 einen vergrößerten Schnitt durch die Vorrichtung gemäß der Schnittlinie II-II in F i g. 1.F i g. 2 shows an enlarged section through the device according to section line II-II in FIG. 1.
Die Mischvorrichtung weist einen mit zu mischendem Gut gefüllten Vorratsbehälter 1 auf, einen diesem nachgeschalteten, gegen die Horizontale leicht geneigten Mischbehälter 2 und eine sich an den Mischbehälter 2 anschließende Verdrängerpumpe 3. Im Inneren des Mischbehälters 2 ist eine Mischerwelle 4 drehbar gelagert; diese ist an ihrem einen Ende mit dem Rotor 5 der Verdrängerpumpe drehfest verbunden und weist ein auf ihren Umfang aufgeschweißtes, in Richtung ihrer Achse angeordnetes Flacheisen 6 auf. Sie ist von einem zu ihr koaxial angeordneten schraubenlinienförmigen Band 8 umgeben, welches nur in der Nähe seines einen Endes mittels vier Radialstreben 19 auf ihr befestigt ist. Die Mischerwelle 4 und der Pumpenrotor 5 sind von einem Motor 10 über eine Kupplung 20 angetrieben.The mixing device has a storage container 1 filled with material to be mixed, one of these downstream, slightly inclined to the horizontal mixing container 2 and one to the Mixing container 2 connected displacement pump 3. Inside the mixing container 2 is a mixer shaft 4 rotatably mounted; at one end it is non-rotatable with the rotor 5 of the positive displacement pump connected and has a welded on its circumference, arranged in the direction of its axis Flat iron 6 on. It is surrounded by a helical band 8 arranged coaxially with it, which is attached to it only in the vicinity of its one end by means of four radial struts 19. the Mixer shaft 4 and the pump rotor 5 are driven by a motor 10 via a coupling 20.
Der Mischbehälter 2 weist ein rohrförmiges Gehäusel8 auf, das auf der einen Seite des Vorratsbehälters mit einem Anschlußstutzen 9 für Wasser und auf der anderen Seite des Vorratsbehälters 1 mit einer Entlüftungsöffnung 16 versehen ist. Zwischen dem Mischbehälter 2 und der Förderpumpe 3 ist ein austauschbarer Flansch 17 eingefügt. Auf die Austrittsöffnung der Förderpumpe 3 ist eine sich verjüngende Düse 21 aufgesetzt.The mixing container 2 has a tubular housing 8 on, on one side of the reservoir with a connection piece 9 for water and is provided with a vent opening 16 on the other side of the storage container 1. Between an exchangeable flange 17 is inserted into the mixing container 2 and the feed pump 3. On the outlet opening A tapered nozzle 21 is attached to the feed pump 3.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1966SC038694 DE1277819B (en) | 1965-05-12 | 1966-03-18 | Device for continuous mixing of powdery to fine-grained bulk material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH37038A DE1244723B (en) | 1965-05-12 | 1965-05-12 | Device for the continuous mixing of dry material with a liquid |
DE1966SC038694 DE1277819B (en) | 1965-05-12 | 1966-03-18 | Device for continuous mixing of powdery to fine-grained bulk material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1277819B true DE1277819B (en) | 1968-09-19 |
Family
ID=25993271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1966SC038694 Withdrawn DE1277819B (en) | 1965-05-12 | 1966-03-18 | Device for continuous mixing of powdery to fine-grained bulk material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1277819B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104282A1 (en) * | 1990-02-13 | 1991-08-14 | Inco Ltd | Pump designed to handle wet cement - has screen conveyor connected to serpentine rotor mounted in stator |
EP0574728A1 (en) * | 1992-06-19 | 1993-12-22 | Martin Theodor Melchior | Checking and transporting of a building material mixture |
EP0584573A1 (en) * | 1992-08-27 | 1994-03-02 | BUG BETRIEBSANLAGEN UND GRUNDBESITZ GmbH | Device for making pumpable mortar on the building site |
DE4442060C1 (en) * | 1994-11-25 | 1996-03-14 | Netzsch Mohnopumpen Gmbh | Eccentric screw pump for highly viscous media |
DE102006036243A1 (en) * | 2006-08-03 | 2008-02-14 | Netzsch-Mohnopumpen Gmbh | Feed screw for eccentric screw pump |
-
1966
- 1966-03-18 DE DE1966SC038694 patent/DE1277819B/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104282A1 (en) * | 1990-02-13 | 1991-08-14 | Inco Ltd | Pump designed to handle wet cement - has screen conveyor connected to serpentine rotor mounted in stator |
US5122038A (en) * | 1990-02-13 | 1992-06-16 | Inco Limited | High density grout pump |
EP0574728A1 (en) * | 1992-06-19 | 1993-12-22 | Martin Theodor Melchior | Checking and transporting of a building material mixture |
DE4219880A1 (en) * | 1992-06-19 | 1993-12-23 | Martin Theodor Melchior | Process and device for the continuous production and simultaneous conveyance of a pumpable building material mixture, such as plastering mortar, containing water and hydraulically bindable solid in a homogeneous mixture |
EP0584573A1 (en) * | 1992-08-27 | 1994-03-02 | BUG BETRIEBSANLAGEN UND GRUNDBESITZ GmbH | Device for making pumpable mortar on the building site |
DE4442060C1 (en) * | 1994-11-25 | 1996-03-14 | Netzsch Mohnopumpen Gmbh | Eccentric screw pump for highly viscous media |
EP0713974A1 (en) | 1994-11-25 | 1996-05-29 | Netzsch Mohnopumpen GmbH | Moineau pump |
DE102006036243A1 (en) * | 2006-08-03 | 2008-02-14 | Netzsch-Mohnopumpen Gmbh | Feed screw for eccentric screw pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |