DE2232390C3 - Method for producing hollow spheres, such as oil tanks, made of concrete, plastic concrete or the like - Google Patents
Method for producing hollow spheres, such as oil tanks, made of concrete, plastic concrete or the likeInfo
- Publication number
- DE2232390C3 DE2232390C3 DE19722232390 DE2232390A DE2232390C3 DE 2232390 C3 DE2232390 C3 DE 2232390C3 DE 19722232390 DE19722232390 DE 19722232390 DE 2232390 A DE2232390 A DE 2232390A DE 2232390 C3 DE2232390 C3 DE 2232390C3
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- rotation
- axes
- hollow spheres
- oil tanks
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000465 moulding Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von Hohlkugeln, wie Öltanks, aus Beton, Kunststoffbeton od. dgl, bei dem die Formmasse durch Schleuderwirkung über die Innenfläche einer um mindestens zwei senkrecht zueinander stehende Drehachsen und mit verschiedenen Geschwindigkeiten drehbaren kugdförmigen Form gleichmäßig verteilt wird.The invention relates to a method for producing hollow spheres, such as oil tanks, from concrete, plastic concrete or the like, in which the molding compound by centrifugal action over the inner surface of at least two axes of rotation perpendicular to one another and spherical shape rotatable at different speeds is evenly distributed.
Bei einem bekannten Verfahren dieser Art (US-PS 28 11 747) wird eine um zwei Achsen, nämlich eine vertikale und eine horizontale Achse, drehbare Kugelform verwendet, in die die fertig gemischte Formmasse eingegeben wird. Bei Arbeitsbeginn wird zunächst die horizontale Achse blockiert und ein Schleudern nur um die vertikale Achse vorgenommen. Nach genügender horizontaler Verteilung des Formstoffs wird die horizontale Drehachse freigegeben. Bei dem bekannten Verfahren ist es auch möglich, verschiedene Drehgeschwindigkeiten für die beiden Drehachsen anzuwenden. Hierdurch sollen für verschiedene Materialien Variationen hinsichtlich der jeweils gewünschten Wanddicken erreicht werden. In a known method of this type (US-PS 28 11 747) one is about two axes, namely a vertical one and a horizontal axis, rotatable spherical shape is used, into which the ready-mixed molding compound is entered will. When starting work, the horizontal axis is initially blocked and only a spin made the vertical axis. After sufficient horizontal distribution of the molding material, the horizontal Axis of rotation released. With the known method it is also possible to use different speeds of rotation to be used for the two axes of rotation. This is intended to allow variations for different materials can be achieved in terms of the desired wall thicknesses.
Das bekannte Verfahren sieht ausschließlich das Schleudern der fertig vermischten Formmasse vor. Es sind also zusätzliche Mischanlagen und damit ein räumlich von der eigentlichen Produktion der Hohlkugeln getrennter Arbeitsgang erforderlich. Obendrein benötigt man Transportvorrichtungen für die fertige, in die Schleuderform einzugebende Formmasse, wobei gleichzeitig die Erhärtungszeiten zu berücksichtigen sind.The known method only provides for the centrifuging of the mixed molding compound. It are therefore additional mixing systems and thus spatially different from the actual production of the hollow spheres separate operation required. On top of that you need transport devices for the finished, in the Molding compound to be added in centrifugal form, taking into account the hardening times at the same time are.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Herstellen von Hohlkugeln, wie Öltanks,The invention is based on the object of providing a method for producing hollow spheres, such as oil tanks,
ίο der eingangs genannten Art so auszubilden, daß es ohne zusätzliche Mischvorrichtungen zum Herstellen der Formmasse durchführbar istίο to train the type mentioned so that it can be carried out without additional mixing devices for producing the molding compound
Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß das Bindemittel und die Zuschlagstoffe sowie gegebenenfalls Wasser unvermischt in die Form eingegeben und bei einer verhältnismäßig niedrigen Drehgeschwindigkeit der Form um alle Drehachsen miteinander vermischt werden und daß anschließend die Drehgeschwindigkeit der Form um alle Achsen zur Erzielung der Schleuderwirkung erhöht wird.This object is achieved according to the invention by that the binder and the aggregates and optionally water entered unmixed into the mold and at a relatively low speed of rotation of the mold about all axes of rotation with one another are mixed and that then the speed of rotation of the mold around all axes to achieve the spin effect is increased.
Damit wird in vorteilhafter Weise erreicht, daß die Formmasse bzw. ihre Ausgangsbestandteile zunächst innig miteinander vermischt werden, ohne daß es einer besonderen Mischvorrichtung und eines räumlich getrennten Arbeitsgangs bedarf. Vielmehr können die Ausgangsstoffe unmittelbar, nur jeweils in der richtig abgemessenen Menge, in die Form eingegeben werden; im Vergleich mit den herkömmlichen einachsigen Betonmischern ist der Vermischungsgrad infolge Rotierens um mehrere Achsen besonders hoch. Nach Abschluß des Mischvorgangs braucht man die Formmasse nicht mehr zu entnehmen, sondern es wird lediglich die Rotationsgeschwindigkeit erhöht, so daß jegliche Umlade- und Transportvorgänge entfallen.It is thus achieved in an advantageous manner that the molding compound or its starting components initially are intimately mixed with one another without there being a special mixing device and a spatially separate one Operation required. Rather, the starting materials can be used directly, only correctly in each case measured amount to be entered into the form; compared to conventional single-axle concrete mixers the degree of mixing is particularly high due to rotation around several axes. After graduation During the mixing process, the molding compound no longer needs to be removed, it is simply the Increased rotation speed, so that any reloading and transport processes are omitted.
Es ergibt sich also eine Zusammenfassung sonst räumlich voneinander getrennter Verfahrensschritte in einer einzigen Vorrichtung und damit eine Reduzierung an Arbeitsaufwand, Arbeitskräften und Herstellungskosten sowie eine zeitliche Verkürzung der Gesamtherstellung. Auch werden Fehler, die beim herkömmlichen Umladen vom Mischer in die Schleudervorrichtung beispielsweise durch Verschmutzung, ungenaues Zumessen usw. entstehen, weitgehend vermieden. Insgesamt ermöglicht das erfindungsgemäße Verfahren damit eine besonders wirtschaftliche Herstellung von Hohlkugeln aus Beton od. dgl.This results in a summary of otherwise spatially separated process steps in a single device and thus a reduction in labor, manpower and manufacturing costs as well as a shortening of the overall production time. Also errors that occur with conventional Reloading from the mixer into the centrifugal device, for example due to contamination, inaccurate metering etc. arise, largely avoided. Overall, the method according to the invention thus enables a particularly economical production of hollow balls made of concrete or the like.
Claims (1)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722232390 DE2232390C3 (en) | 1972-07-01 | Method for producing hollow spheres, such as oil tanks, made of concrete, plastic concrete or the like | |
| DE2264951*A DE2264951A1 (en) | 1972-07-01 | 1972-07-01 | Centrifugally cast hollow spheres - by mixing concrete or concrete/plastic in mould at low rotational velocity, and casting at higher velocity |
| FR7322414A FR2191466A5 (en) | 1972-07-01 | 1973-06-20 | |
| IT51053/73A IT985793B (en) | 1972-07-01 | 1973-06-26 | PROCEDURE AND DEVICE FOR PRO DURRE HOLLOW SPHERES ESPECIALLY OF CONCRETE |
| BE132813A BE801550A (en) | 1972-07-01 | 1973-06-27 | Centrifugally cast hollow spheres - by mixing concrete or concrete/plastic in mould at low rotational velocity, and casting at higher velocity |
| IL42629A IL42629A (en) | 1972-07-01 | 1973-06-29 | Method and apparatus for the manufacture of hollow spherical bodies from concrete or plastics |
| CH954573A CH570857A5 (en) | 1972-07-01 | 1973-06-29 | |
| DD171941A DD106296A5 (en) | 1972-07-01 | 1973-06-29 | |
| BR485673A BR7304856D0 (en) | 1972-07-01 | 1973-06-29 | PROCESS FOR THE PRODUCTION OF HOLY BALL DIAMETER BALLS AND DEVICE FOR ITS EXECUTION |
| NL7309154A NL7309154A (en) | 1972-07-01 | 1973-06-29 | |
| AR248867A AR198319A1 (en) | 1972-07-01 | 1973-06-29 | PROCEDURE AND DEVICE FOR THE MANUFACTURE OF HOLLOW SPHERES OF LARGE DIAMETERS |
| GB3111873A GB1388364A (en) | 1972-07-01 | 1973-06-29 | Moulding of hollow spherical bodies |
| ES416451A ES416451A1 (en) | 1972-07-01 | 1973-06-30 | Moulding of hollow spherical bodies |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722232390 DE2232390C3 (en) | 1972-07-01 | Method for producing hollow spheres, such as oil tanks, made of concrete, plastic concrete or the like | |
| DE2264951*A DE2264951A1 (en) | 1972-07-01 | 1972-07-01 | Centrifugally cast hollow spheres - by mixing concrete or concrete/plastic in mould at low rotational velocity, and casting at higher velocity |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2232390A1 DE2232390A1 (en) | 1974-01-10 |
| DE2232390B2 DE2232390B2 (en) | 1976-03-18 |
| DE2232390C3 true DE2232390C3 (en) | 1976-11-04 |
Family
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