1. The dry granulation of the slag system, which comprises a body (18) of the slag granulating forming aperture (44); input (42) for supplying the slag; directed granulator (8) to receive slag from the login granulation; a sensor (64) directed in the aperture zone; and a controller for controlling the relative movement of the input supply and the slag granulator directed in response to signals received from the sensor (64) .2. The system of claim. 1, wherein the sensor (64) comprises an infrared sensor, an optical sensor or soudareniya.3 sensor. System according to any one of claims. 1 or 2, wherein the directional granulator (8) is movably mounted, and the input (42) for feeding the slag is fiksirovannym.4. System according to any one of claims. 1 or 2, wherein the housing (18) further comprises a base wall and kryshu.5. System according to any one of claims. 1-4, wherein the system further comprises an input (46) for the air in the housing base (18) .6. System according to any one of claims. 1 or 2, wherein the system further comprises an air outlet in the roof of the housing (18) .7. System according to any one of claims. 1 or 2, wherein the system further comprises a heat recovery mechanism coupled to an output for vozduha.8. System according to any one of claims. 1 or 2, wherein the directional granulation unit (8) comprises a directional dry granulation apparatus of slag, the device comprising a rotating spray granulator (8) having a central axis (29) of rotation; means for feeding the slag stream and position controller, wherein the point (19) falling slag flow on the rotary granulator means of slag feed stream is offset and is not concentric with the central axis of rotation of the rotary granulyatora.9. A method of operating a dry granulation of the slag system, wherein the method comprises
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