Title:
TREATMENT OF DUST COLLECTION ASH
Document Type and Number:
Japanese Patent JP3309257
Kind Code:
B2
Abstract:
PURPOSE: To provide a treating method of collected dust and ash capable of preserving for a long period a stable decomposition performance for organic chlorine compound.
CONSTITUTION: In the treating method of the collected dust and ash by which the collected dust and ash A collected in an exhaust gas treatment process using a waste incineration treating equipment, the collected dust and ash A are introduced into a heating device 1, and the decomposition of the collected dust and ash is preserved stably for a long period by introducing heated D of ≥100°C into the heating device 1 and evacuating the inside of the heating device 1 to negative pressure to heat the dust and ash A to ≥300°C under this negative pressure. Thus, the organic chlorine compound in the dust and ash A can stably be decomposed and removed stably for a long period.
Inventors:
Gentaro Takasuka
Masazumi Itaya
Masazumi Itaya
Application Number:
JP26018393A
Publication Date:
July 29, 2002
Filing Date:
October 18, 1993
Export Citation:
Assignee:
Mitsui Shipbuilding Co., Ltd.
Sanzo Environmental Engineering Co., Ltd.
Sanzo Environmental Engineering Co., Ltd.
International Classes:
B09B3/00; F23G7/00; (IPC1-7): B09B3/00; F23G7/00
Domestic Patent References:
| JP3275184A | ||||
| JP5168728A | ||||
| JP642871A | ||||
| JP4241880A | ||||
| JP5154461A | ||||
| JP4738798A |
Attorney, Agent or Firm:
Takenaga Kawakita