| 摘要 |
A system for heating asphaltic cement in a storage tank. The system including a burner, a pipe fluidly connected to the burner and submerged in the cement, a dissipator enclosing the pipe adjacent to the burner to prevent "coking" of the cement disposed adjacent thereto, and a vacuum pump fluidly connected to the pipe for circulating heated gases through the pipe. The dissipator is fluidly connected to the pipe and to the atmosphere such that the vacuum pump also draws atmospheric air into the dissipator to cool the pipe adjacent the burner, which air is heated thereby and drawn through the system to aid in heating the cement. Controls may be provided to automatically activate the burner and pump.
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