The invention relates to a method and a plant for the continuous production of engineered stone slabs. In the method, raw materials comprising at least one mineral filler and one organic binder are mixed, applied to a lower belt of a dual-belt press, or a conveying means mounted upstream of the lower belt, and subsequently continuously pressed, and the binder is cured. A continuously-obtained material strand is separated into individual engineered stone slabs. It is provided that the mixing operation of the raw materials is carried out at staggered times in a batch mixing operation by means of at least two separate mixing devices. The mixed raw materials from the mixing devices are transferred into one, or multiple, spreading device(s) at staggered times and are applied continuously and without interruption to the lower belt, or the conveying means mounted upstream of the lower belt, by means of the spreading device(s).

A dispensing device for dispensing a granular material, comprising a dispensing channel (20) provided with an inlet opening (21) and an outlet opening (22). The dispensing channel (20) comprises an intermediate portion (23), which connects the inlet (21) and outlet (22) openings and is provided with a longitudinal axis (Y); the intermediate portion (23) has a length (L) and a height (H), measured on a vertical plane containing the longitudinal axis (Y), wherein the height (H) is measured perpendicular to the length (L). The intermediate portion (23) is configured to enable the deposit and accumulation of a predetermined quantity of granular material coming from the inlet opening (21); Motor means are provided which can be activated on command to cause the granular material to flow in advancement from the intermediate portion (23) towards the outlet opening (22).

A method for decorating in thickness a ceramic slab, comprising the following steps: preparing, on a decoration surface (10), a first soft decorated layer (L1) of ceramic material endowed with a decoration (V); progressively transferring, by deposition, the soft decorated layer (L1) from the decoration surface (10) to a first deposition surface (50), situated at a lower height than the decoration surface (10), thus progressively forming on the first deposition surface (50) a second soft decorated layer (L2) which has a head (H) and a tail (T); progressively transferring, by deposition, the second soft decorated layer (L2) from the first deposition surface (50) to a second deposition surface (83), situated at a lower height than the first deposition surface (50), starting from the tail (T) of the second soft decorated layer (L2), thus progressively forming on the second deposition surface (83) a third soft decorated layer (L3).

A feeding device for a press comprising: a first belt (2), movable in advancement along a conveying direction (X) and passing through a press (11, 12); depositing means (3), predisposed for spreading in a layer an amount (L) of loose material (L) on a movable plane. The device comprises a second belt (4), on which the depositing means (3) operate, located upstream of the first belt (2), which is movable along the conveying direction (X) and is substantially aligned and contiguous to the first belt (2). The first belt (2) and second belt (4) are movable independently of one another.

The present invention relates to a system for the production of thermal insulating, architectural and structural foam materials cast in molded volumes configured for a subsequent milling process, wherein molded foam volumes are cut into dimensional products or product components.

A method for manufacturing a product in the form of a sheet or a block, including: preparing an initial mixture including one or more stones or a stone-like granular material having a selected particle size and a binder; depositing a layer of the initial mixture having a predetermined thickness onto a surface of a conveyor belt; performing prepressing and finally obtaining a roughly formed material; systematically depositing layers of initial mixtures onto surface of the conveyor belt in parallel, making each layer not superposed in a direction perpendicular to surface of the conveyor belt, but arranged in sequence in a direction of width of the conveyor belt to form a multi-component or composite mixture structure; conveyor belt conveys the multi-component or composite mixture into a rotated container or support member; after discharged from the rotated container or support member, a final mixture is conveyed to perform subsequent pre-compression and hardening.

A plant for manufacturing ceramic articles comprising two feeding devices, each of which is designed to contain a powder material of a respective type and to feed said powder material to a conveyor assembly; the plant further comprises an operating device which is designed to enable the output of the powder material selectively in the area of the feeding devices arranged successively and transversely to the feeding direction, and a control unit which controls the operating device depending on a desired reference distribution and how far the conveyor assembly feeds the powder material.

A production device for manufacturing a product in the form of a sheet or a block, including: an initial agitator (1), a primary conveyor belt (2) and a mixing agitator (3); each of initial agitators (1) is configured with the primary conveyor belt (2), one or more stones or a stone-like granular material having a selected particle size and a binder are initially mixed in the initial agitator (1) and then an initial mixture is obtained; the mixing agitator (3) includes a rotating container for undertaking a material; the initial mixture is conveyed to the mixing agitator (3) through the primary conveyor belt (2); more than one initial agitator and matched primary conveyor belts thereof are disposed around the mixing agitator (3) at intervals.

In an exemplary embodiment, a system for making tied block mat with a border includes a mold having an array of mold cavities; and a hopper that receives a hardenable paste and is spaced from the mold to receive a sheet of mesh material therebetween, the hopper having an opening for depositing the hardenable paste into selected mold cavities, the hopper forming a filling zone with the mold wherein the hardenable paste flows through the opening into the selected mold cavities, and a blocked zone where the hardenable paste is prevented from entering other selected mold cavities of the mold; whereby the tied block mat is formed wherein the hardenable paste in the selected mold cavities becomes embedded in the sheet of mesh material in the filling zone, and a border is formed in the blocked zone where the hardenable paste is blocked from entering the other selected mold cavities.

Machine and method for compacting ceramic powder; a layer of non-compacted ceramic powder is conveyed in a feed direction through a compacting device; downstream of the compacting device there is positioned a detection device which detects the density of the layer of compacted ceramic powder; the quantity of ceramic powder fed to the compacting device is varied in time as a function of what is detected by the detection device to thus regulate the density of the layer of compacted ceramic powder.