Plant for manufacturing cement clinker

Details Plant for manufacturing cement clinker Plant for manufacturing cement clinker

1980-12-03

1983-06-21

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

432103, 432105, 432107, 432111, C04B 702

Patent

active

043892523

ABSTRACT:
A plant for manufacturing cement clinker from cement raw material includes a preheater first stage separated by a wall into a first chamber and a second chamber. Only raw material is passed through the first chamber while only hot exit gases are permitted to pass through the second chamber. Thus the raw material including any volatile, combustion components are kept isolated from direct contact with the hot exit gases. A heat exchange system is provided to permit the transfer of heat from the hot exit gases in the second chamber to the raw material in the first chamber. The heat exchange system preferably includes self-contained heat pipes extending into both the first and second chambers. The heat pipes contain a fluid medium which aids in the heat transfer as a consequence of cylical changes of the fluid medium from a liquid to a vapor state. In one preferred embodiment to obtain improved heat transfer, granular heat-resistant material is placed within the second chamber and is formed into an expanded fluidized bed.

REFERENCES:
patent: 3451665 (1969-06-01), Strassen
patent: 3498594 (1970-03-01), Rikhof

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