Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1998-03-26
1999-11-09
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
2411018, 366302, 366341, B02C 1912
Patent
active
059798076
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a process for the production of a fluid fine paste hardenable after molding, and more particularly fluid pastes prepared from materials such as cement, clays, kaolin and the like in admixture with water and other additives to form solid bodies once hardened by setting, heating or polymerization, particularly fluid pastes composed of solid materials, such as cement, clays, kaolin and the like in admixture with water and other compatible complementary products, such as aggregates, dyestuffs, fillers, fiber reinforcements, polymers, etc., and functional additives such as inhibitors, accelerators, thixotropic agents, fluidisers, foaming agents, etc., to form solid bodies, after molding and hardening by setting, heating and/or polymerization, applicable in the building industry. The listing of such materials in which the preferred ones of the said industry are cited, is given only as a guidance and is in no way restrictive, it being of application to other industries, such as the chemical, food, naval, paint manufacturing and others.
The invention also relates to a plant for the production of a fluid fine paste hardenable after molding.
The solid bodies, obtained with the materials listed as preferred, are prefabricated elements for the building industry, such as frontage panels, internal closure partitions, tiles and floor tiles, pieces imitating natural stones (marble, granite, etc.), indoor and outdoor chimneys, urban furnishing, imitation wood pieces, swimming pools, cisterns, irrigation canals and many more.
For making such solid bodies, the present applicant filed Spanish patent application 9502438 relative to a process and a plant for carrying out the process, in which the starting material was an air hardenable fluid material.
The working of the subject matter of the above application has enabled the constitution of the said fluid material to be improved, converting it into a fluid fine paste allowing the details of the molds to be reproduced more faithfully, the process for the preparation of the said fluid fine paste and one possible plant for the preparation thereof the subject matter of the present invention.
On the other hand, several ways are known of preparing homogenous mixtures of materials, such as those disclosed in the following Spanish patents 544,222 (Madera) which consists of a mixing plant for producing mortars, renderings and the like, in which a vertical mixing machine receives the products to be mixed and homogenizes them; 2,009,650 (Rosell) consisting of a mortar mixing machine for the building industry, in which the mixer is horizontal and has a turbine shaft for mixing the dry mortar with the water; and 2,013,158 (Fabregat), consisting of a mixing apparatus for mortars, paints and paste-like materials, formed by an open container having a tumbling tool formed by a shaft coupled to a powered machine
It is an object of the invention to provide a process and a plant for preparing the said fluid fine paste in a perfectly homogenized condition and having a composition appropriate for each application, since they allow for the combination of a large numbers of parameters, whether they be mechanical operations or addition components.
The process is characterized in that the basic solid and liquid products for forming the fluid paste are mixed in a homogenizing apparatus, in which the said basic products are dispersed and kneaded, together with addition components, to obtain a first fluid homogenous mixture, which is thereafter fed to a grinding apparatus, in which the coarse particles and lumps present in the said first fluid homogenous mixture are ground and to which there may be added coloring agents, as the case may be, to give a second homogenous fluid fine mixture which is thereafter transferred to a continuous mixer, where additives and/or coloring matter are added, forming a fluid fine paste which is continuously fed to a delivery nozzle for said fluid fine paste to which more additives are added and, optionally, reinforcing fibers and/or a gaseous foaming
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