Calcination furnace
AssigneeTDK Corporation
InventorsYasuo Ohtani, Takuo Kataho, Makoto Satoh, Tsutomu Tanaka, Yoshimasa Nose, Kazuyoshi Kobayashi, Tetsuhide Uchikawa, Toshihiro Hamahata
Life of this patent
Estimating the term…
Abstract
A calcination furnace capable of variably setting calcination conditions such as a size of a calcination chamber, a temperature, a temperature distribution and flowing of gas in the calcination chamber; and the like depending on calcined intermediate products. A furnace body in which a furnace chamber is defined includes two movable sections, which are moved in predetermined directions, to thereby vary an internal volume of the furnace chamber as desired.
Claims37
A calcination furnace comprising:
- a furnace body in which a furnace chamber is defined;
- a heat source for heating said furnace chamber, including first and second heat source means;
- said furnace chamber including a first furnace chamber section and at least one second furnace chamber section, at least one of said chamber sections is movable to adjust an internal volume of said furnace chamber, said first furnace chamber section receiving therein a calcined intermediate product and said second furnace chamber section being partitioned from said first furnace chamber section;
- and
- said first furnace chamber section being provided with said first heat source means and said second furnace chamber being provided with said second heat source means.
A calcination furnace comprising:
- a furnace body in which a furnace chamber is defined to receive therein a calcined intermediate product;
- said furnace body including at least one movable section to adjust an internal volume of said furnace chamber;
- a heat source for heating said furnace chamber;
- and
- a furnace atmosphere control unit which includes a furnace atmosphere circulating section;
- said furnace atmosphere circulating section being constructed so as to adjust a concentration of ingredients contained in a furnace atmosphere taken out from said furnace body and adjust a temperature of the furnace atmosphere to a level approximating a furnace temperature in said furnace body before the furnace atmosphere is returned to said furnace body.
A calcination furnace comprising:
- a furnace body in which a furnace chamber is defined, said furnace chamber including a first furnace chamber section constituting a calcination chamber and at least one second furnace chamber section;
- at least one of said chamber sections is movable to adjust an internal volume of said furnace chamber;
- said second furnace chamber section including a combustion heater means;
- said second furnace chamber section being arranged adjacent to said calcination chamber and partitioned from said calcination chamber through a heat transfer partition;
- and
- an additional heat source means arranged in said calcination chamber.
A furnace for accommodating different size products, comprising:
- a furnace body in which a furnace chamber is defined, said furnace body including at least one movable section to adjust an internal volume of said furnace chamber;
- adjustment means for insertion into the furnace body to fill the void left by movement of the movable section whereby a predetermined internal volume of said furnace chamber is provided;
- and
- a heat source for heating said furnace chamber, including first and second heat source means;
- said furnace chamber including a first furnace chamber section for receiving the products, the adjustment means forming a portion of said first furnace chamber, and at least one second furnace chamber partitioned from said first furnace chamber, said first heat source means is provided in said first furnace chamber and transmits heat to said second furnace chamber, and said second heat source means is provided in said second furnace chamber.
Dependencies are inferred from the claim text.