Biomass solid fuel manufacturing method and biomass solid fuel manufacturing device
AssigneeMitsubishi UBE Cement Corporation
InventorsYuusuke Hiraiwa, Shigeya Hayashi, Nobuyuki Ooi
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Abstract
A biomass solid fuel manufacturing method, including: a heating step of carbonizing a biomass molded body formed by molding raw material biomass, in an external heating type rotary kiln, in which the rotary kiln includes a non-heating zone that is provided on an upstream side of a kiln body and is not provided with a heating unit on an outer circumference, the non-heating zone includes a spiral blade on an inner circumferential surface, and in the heating step, the biomass molded body is introduced to the non-heating zone of the kiln body.
Claims3
A biomass solid fuel manufacturing method, comprising:
- introducing a biomass molded body formed by molding raw material biomass into a non-heating zone of an rotary kiln;
- transferring the biomass molded body into a heating zone of the rotary kiln;
- carbonizing the biomass molded body, in the heating zone of the rotary kiln, wherein:
- the non-heating zone extends axially along an upstream side of a cylindrical kiln body and is not provided with a heater on an outer circumference, the heating zone extends axially along a downstream side of the non-heating zone and is provided with a heater on an outer circumference thereof such that the inner circumference thereof is heated, the non-heating zone includes a spiral blade on an inner circumferential surface configured to transfer the biomass molded body from the non-heating zone to the heating zone, the heating zone includes a lifter blade extending axially along an entire length of an inner circumferential surface thereof, the lifter blade protrudes toward a rotational axis of the rotary kiln from the inner circumferential surface of the heating zone.
A biomass solid fuel manufacturing device, comprising:
- an external heating type rotary kiln carbonizing a biomass molded body formed by molding raw material biomass,
- wherein:
- the rotary kiln includes a non-heating zone extends axially along an upstream side of a cylindrical kiln body and is not provided with a heater on an outer circumference,
- the rotary kiln further includes a heating zone that extends axially along a downstream side of the non-heating zone and is provided with a heater on an outer circumference thereof such that the inner circumference thereof is heated,
- the non-heating zone includes a spiral blade on an inner circumferential surface configured to transfer the biomass molded body from the non-heating zone to the heating zone,
- the heating zone includes a lifter blade extending axially along an entire length of an inner circumferential surface thereof, and
- the lifter blade protrudes toward a rotational axis of the rotary kiln from the inner circumferential surface of the heating zone.
Dependencies are inferred from the claim text.