Agitating – Mortar mixer type – Methods
Patent
1996-04-05
1998-09-22
Cooley, Charles E.
Agitating
Mortar mixer type
Methods
366 16, 366 50, 366 64, 366320, B01F 708, B28B 1900, B28C 514
Patent
active
058104704
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the mixing of a hydraulic binder and of mineral materials with a liquid. It relates firstly to a use of a device comprising at least two concentric tubular elements, the outer tubular element containing a helical means for entrainment of liquids or solid products in the divided state.
More particularly, it relates to a device comprising at least two concentric tubular elements, the outer tubular element containing a helical means for entrainment of liquids or solid products in the divided state, for example in the form of grains and/or in the powdered state, the said helical means surrounding the inner tubular element, the outer tubular element comprising at least one inlet orifice for the liquid or solids and one outlet orifice for the mixture of liquid and solids, the said inner tubular element emerging inside the outer tubular element downstream of the inlet orifice and upstream of the outlet orifice.
2. Background Art
Such known devices (see, for example, patents FR-A-1,436,336 in the name of M. RASTOIN and FR-A-2,414,952 in the name of M. LIGOUZAT) are used for mixing and transporting solid products and liquids for the purpose of a subsequent operation. Nowhere in these documents is there specified a means for setting these elements so as to form a new composition, nor is provision made for dispensing the mixed products.
SUMMARY OF THE INVENTION
The object of the invention is to overcome these drawbacks. To this end, the device which is defined hereinabove is used to obtain a composition based on at least one hydraulic binder by semi-continuous mixing of the hydraulic binder with a liquid.
According to other characteristics, the device is used for: binder, on mineral materials, and on liquid;
The subject of the invention is also an installation which allows a use such as defined hereinabove.
The said installation includes a device in accordance to the one described hereinabove and it further includes a moving carriage supporting the said device including metering supply members in the upstream part of the device and a device for controlling and synchronizing the displacement of the carriage as a function of the supply.
This installation allows the hydraulic binder to be supplied and dispensed.
According to other characteristics it comprises a rotary axisymmetric element open at one end, the said rotary element being concentric with and of a greater diameter than the tubular elements of the device.
A further subject of the invention is a method for lining a metal pipe based on quick-setting cement.
According to another characteristic, the lining is based on mortar containing a significant proportion of sand.
BRIEF DESCRIPTION OF THE DRAWING FIGURE
A non-limiting example of the invention will now be described with reference to the appended drawing, the single FIGURE of which diagrammatically represents an installation for mixing and dispensing a hydraulic binder in accordance with the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The installation represented in the drawing comprises a device 1 formed of a tubular element 2 concentrically surrounding a second, emerging, tubular element 3. A helical spring 4 contained in the first tubular element 2 surrounds the second tubular element 3 for conveying water 5. The first tubular element 2 exhibits, on the upper part of its circular envelope, an inlet orifice 6a and at one end exhibits an inlet orifice 6b, its other, open, end forms an outlet orifice 7. The tubular element 3 passes through the orifice 6b. Dry materials 8 made up particularly of minerals, for example sand and a hydraulic binder such as a cement are conveyed via the orifice 6a. The mixing of the dry materials 8 with water 5 forms a mortar 9 which leaves via the orifice 7.
The device 1 is placed on a carriage 10.
A rotary pipe 11 of an inside diameter greater than the outside diameter of the first tubular element is located level with the open end of the first tubular element 2, formi
REFERENCES:
patent: 2002701 (1935-05-01), McWane et al.
patent: 3682447 (1972-08-01), Zucker et al.
patent: 4164597 (1979-08-01), Smith
patent: 4194844 (1980-03-01), Walling
patent: 4232973 (1980-11-01), Ligouzat
patent: 4492478 (1985-01-01), Ito et al.
patent: 5176869 (1993-01-01), Okamoto et al.
Soviet Inventions Illustrated, Section Ch, Week 8732, 19 Aug. 1987, Derwent Publications Ltd., London, GB; Class J02, AN 87-227095 & SU,A,1 278 486 (Belo Water) see abstract.
Garrant Jean
Lalouette Olivier
Thiery Jacques
Cooley Charles E.
Pont-A-Mousson S.A.
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