Patent ID: 6115542
Filing Date: 2000-09-05
Classification: F23K

Abstract:
A device for storing and discharging a viscous liquid, comprising means forming a storage chamber for storing a viscous liquid; means forming at least one mixing chamber which is substantially smaller than said storage chamber and communicates with said storage chamber for introducing the viscous liquid from said storage chamber in said mixing chamber; means for separating said mixing chamber from said storage chamber; first means for withdrawing one portion of the viscous liquid only from the mixing chamber, heating the withdrawn one portion of the viscous liquid and reducing its viscosity and returning a part of the one portion of the withdrawn heated viscous liquid with reduced viscosity into the mixing chamber so as to mix it with the viscous liquid introduced from said storage chamber into the mixing chamber and to reduce viscosity of the viscous liquid in the mixing chamber; second means for withdrawing another portion of the viscous liquid only from mixing chamber, heating the withdrawn other portion of the viscous liquid and reducing its viscosity, and returning a part of the withdrawn heated other portion of viscous liquid with reduced viscosity into the mixing chamber so as to mix it with the viscous liquid in the mixing chamber and to reduce viscosity of the viscous liquid in the mixing chamber, said first means being provided means for discharging another part of the liquid withdrawn and heated by said first means and having reduced viscosity to a consumer; and means for determining a viscosity of the viscous liquid flowing from the mixing chamber into said first means and regulating heating of the other portion of the withdrawn viscous liquid in said second means, so that when the viscosity of the viscous liquid flowing from said mixing chamber into said first means increases above a predetermined level, heating of the other portion of the withdrawn viscous liquid in said second means is increased and additional quantity of the viscous liquid withdrawn from said mixing chamber, heated and returned to the mixing chamber by said second means decreases the viscosity of the viscous liquid in said mixing chamber and also of the viscous liquid flowing from said mixing chamber into said first means and to the consumer.