FIELD: environmental protection; methods and devices for the waste waters sediment heating up for the anaerobic stabilization in the methane-tanks.
SUBSTANCE: the invention is pertaining to the field of the biological purification of the waste waters, in particular to anaerobic stabilization of the sediments in the methane-tanks for the waste waters purification facilities with the productivity of more than 50-100 thousand m3/day at the mesophilic (32-35°C) and the thermophilic (52-55°C) temperature modes. For the sediment heating up and its anaerobic stabilization in the methane-tank the raw sediment is loaded in the methane-tank, the partially stabilized sediment is withdrawn from the methane-tank, heat with the steam in the injector and after that load again in the methane-tank. At that the source steam is divided in the separator into the condensate and the dry steam. The crude sediment is loaded in the methane-tank after its mixing with the partially stabilized sediment and the condensate produced at separation of the source steam. The mixture including the partially stabilized sediment, the crude sediment and the condensate is heated up by the dry steam, which is fed to the inlet of an injector with the possibility of the flow control. The heating device of sediment for anaerobic stabilization in the methane-tank contains the methane-tank, the pipeline of the crude sediment feeding, the injector, the injector intake pipeline and the pressure pipeline, the source steam feeding pipeline, the separator, the condensate pipeline, the dry steam pipeline, the condensate discharge pipeline, and also the shut-off-control equipment. The technical result of the invention is the increased efficiency of the methane tank due to provision of the optimal mode of the heating, more thorough mixing of the sediment, minimization of the losses of the heat power and the increased reliability the service life of the used equipment.
EFFECT: the invention ensures the increased efficiency of the methane tank due to provision of the optimal mode of the heating, more thorough mixing of the sediment, minimization of the losses of the heat power and the increased reliability the service life of the used equipment.
7 cl, 1 dwg
