Patent ID: 8109456

Claim:
An integrated unit for the treatment of drill cuttings, comprising a vertical stack in a cylindrical tank of the following components: a mixing unit in the upper portion comprising one or more measuring devices for measuring the composition of the wet drill cuttings before being furnished to a wet drill cuttings inlet, a binder inlet, an additive inlet, a water inlet, and a vapour inlet, said mixing unit arranged for mixing the compounds, with a milling and crushing unit for milling the mixture and arranged for feeding to a mixture outlet, wherein one or more dosage units are arranged at said one or more inlets for furnishing the required amount of binder, additive, water and/or vapour respectively for the formation of a desired mixture, said mixing outlet arranged for feeding the mixture down to an underlying first intermediate storage area with a bottom formed by a first conical internal cover arranged for leading said mixture downwards to a peripheral inlet at the rim of an underlying first upwardly tapered granulating unit which is arranged for milling, setting, hardening, granulating and transporting the mixture in an upwardly direction along a first helix path to a central outlet to a first storage tank, said outlet arranged at the upper portion of said first granulation unit, said first storage tank provided with a second outlet, said second outlet arranged for feeding the mixture from said first granulation unit down to an underlying second intermediate storage area with a bottom formed by a second conical internal cover arranged for leading said mixture downwards to a peripheral inlet at the rim of a second conical upwards tapered granulating unit which is arranged for further milling, granulating, setting and hardening and transporting the mixture in an upwardly direction along a second helix path to a central, third outlet arranged at the upper portion of said second granulation unit and leading to a second storage tank, wherein hot vapour is arranged for further being furnished to the unit through manifolds in communication with said first and/or second granulation units, wherein said third outlet is arranged for transporting said set and hardened granulated mixture to an outlet for storage or disposal.