Method and apparatus for recovery of heat from bulk solids
AssigneeSolex Thermal Science Inc.
InventorsAshley D. BYMAN, Jordison NEVILLE, Robert MCGILLIVRAY
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Abstract
A method of heat recovery from bulk solids includes introducing the bulk solids into an inlet of a heat exchanger for indirect heat exchange with water as the bulk solids flow, by gravity, from the inlet to an outlet of the heat exchanger, pumping the water into subcritical heating heat transfer elements within the heat exchanger for indirect heat exchange with the bulk solids to heat the water and thereby provide heated, pressurized water, and flashing off steam from the heated, pressurized water.
Claims22
A method of heat recovery from bulk solids, the method comprising:
- introducing the bulk solids into an inlet of a heat exchanger for indirect heat exchange with water as the bulk solids flow, by gravity, from the inlet to an outlet of the heat exchanger;
- pumping the water into subcritical heating heat transfer elements within the heat exchanger for indirect heat exchange with the bulk solids to heat the water and thereby provide heated, pressurized water;
- flashing off steam from the heated, pressurized water.
An apparatus for recovery of heat from bulk solids, the apparatus comprising:
- a heat exchanger for indirect heat exchange with the bulk solids, the heat exchanger including
- a housing including an inlet for receiving the bulk solids and an outlet for discharging the bulk solids, and
- a set of subcritical heating heat transfer elements disposed between the inlet and the outlet and arranged and constructed for the flow of water therethrough and for the flow of the bulk solids that flow from the inlet, between the heat transfer elements, to the outlet;
- a pump for pumping the water into the subcritical heating heat transfer elements within the heat exchanger for indirect heat exchange with the bulk solids to heat the water;
- a flash vessel in fluid communication with the set of subcritical heating heat transfer elements for receiving the heated water and flashing off steam from the heated water.
Dependencies are inferred from the claim text.