| 摘要 |
In melting installations, including cupolas for cast iron production, the effluent gases contain latent and sensible heat. The purpose of the system is to recover such heat in order to produce, when so required, electric and/or heat energy, under the form of steam and/or hot water. As melting installations such as cupolas can have intermittent operation characterized by halts, also daily halts, and as their effluent gases contain dust and in some cases steam and/or drops of water, therefore possessing potentially fouling and corrosive properties, it follows that the latent and sensible heat recovery from the above mentioned gases involves certain difficulties.
<??>For this purpose - that is to say, for the elimination of such difficulties - the Applicants have proposed a system consisting of a thermal unit for heat recovery with consequent production of steam and/or hot water and a converter unit which transforms the heat energy into electric energy, when so requested.
<??>The characteristic part of the system actually consists of just its thermal unit only which advisably consists of two interconnected boilers, of which the first one is of the water tube type functioning by radiation and convection, with two round manifolds, and the second one is of the fire |
