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Title:
MULTI-STAGE SCREW CARBONIZATION FURNACE
Document Type and Number:
Japanese Patent JP2010106082
Kind Code:
A
Abstract:

To provide a multi-stage screw carbonization furnace equipped with screw conveyers preventing the thermal deformation of troughs.

There is provided the multi-stage screw carbonization furnace 1 in which screw conveyers 2 heated in a furnace body 3 convey a material to be carbonized by the rotation of screws 8 in cylindrical troughs 20, and the carbonized product is produced through the screw conveyers 2 arranged in the longitudinal direction, characterized in that the trough 20 constituting the screw conveyer 2 is integrally formed of a trough body 21 having a U-shaped cross section in the longitudinal view and a ceiling plate 22 disposed to close the upper opening of the trough body 21; a plurality of beam members 24 spun in the transverse direction crossing the longitudinal direction are joined to the upper opening in the trough body 21; and the ceiling plate 22 is joined to the trough body at portions y1 to y6 in the longitudinal direction and is not joined to other portions.


Inventors:
Sakano, Masakazu
Maie, Yoshiyuki
Application Number:
JP2008000277473
Publication Date:
May 13, 2010
Filing Date:
October 28, 2008
Export Citation:
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Assignee:
NIPPON SHARYO SEIZO KAISHA LTD
International Classes:
C10B53/00; C02F11/10; F27B5/06; F27B9/24
Attorney, Agent or Firm:
特許業務法人コスモス特許事務所