Compact and transportable installation, quick to start up and independent, allowing to dissolve at high concentration, in very short periods of time, substantial quantities of polyacrylamide powder and designed to be used in fracturing operations on gas or oil fields whereby the installation successively includes: - a polymer storage area - a vertical polymer transfer hopper - a supply overflow pipe feeding - a polymer dosing system fed by the above pipe - a polymer slicing unit comprising: • a polymer wetting cone connected to a primary water inlet circuit • at the lower end of the cone: • a dispersed polymer slicing and discharge chamber including: - a rotor driven by a motor and equipped with blades - a fixed stator made up of evenly spaced plates • over all or part of the periphery of the chamber, is a ring supplied by a secondary water circuit, the ring communicating with the chamber so as to ensure the spray of pressurised water over the plates of the stator thereby allowing for the release of the sliced and swollen polymer at the surface of the said plates - a tank for storage and degassing of the polymer in solution - a volumetric pump to inject and dose the solution of polymer obtained at the suction of the high pressure pump enabling the fracturing work. - a polymer storage area - a vertical polymer transfer hopper - a supply overflow pipe feeding - a polymer dosing system fed by the above pipe - a polymer slicing unit comprising: • a polymer wetting cone connected to a primary water inlet circuit • at the lower end of the cone: • a dispersed polymer slicing and discharge chamber including: - a rotor driven by a motor and equipped with blades - a fixed stator made up of evenly spaced plates • over all or part of the periphery of the chamber, is a ring supplied by a secondary water circuit, the ring communicating with the chamber so as to ensure the spray of pressurised water over the plates of the stator thereby allowing for the release of the sliced and swollen polymer at the surface of the said plates • a polymer wetting cone connected to a primary water inlet circuit • at the lower end of the cone: • a dispersed polymer slicing and discharge chamber including: - a rotor driven by a motor and equipped with blades - a fixed stator made up of evenly spaced plates • over all or part of the periphery of the chamber, is a ring supplied by a secondary water circuit, the ring communicating with the chamber so as to ensure the spray of pressurised water over the plates of the stator thereby allowing for the release of the sliced and swollen polymer at the surface of the said plates • a dispersed polymer slicing and discharge chamber including: - a rotor driven by a motor and equipped with blades - a fixed stator made up of evenly spaced plates - a rotor driven by a motor and equipped with blades - a fixed stator made up of evenly spaced plates • over all or part of the periphery of the chamber, is a ring supplied by a secondary water circuit, the ring communicating with the chamber so as to ensure the spray of pressurised water over the plates of the stator thereby allowing for the release of the sliced and swollen polymer at the surface of the said plates - a tank for storage and degassing of the polymer in solution - a volumetric pump to inject and dose the solution of polymer obtained at the suction of the high pressure pump enabling the fracturing work.