PLASMA ARC TYPE ASH MELTING FURNACE

PROBLEM TO BE SOLVED: To maintain the arirtightness of the contact portion between a packing and a plasma electrode even after the elasticity of the packing itself is lost. SOLUTION: A packing storing chamber 11 is arranged on an upper part of a ceiling wall 3 of a plasma arc type ash melting furnac...

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Bibliographic Details
Main Authors NISHIKAWA SUSUMU, YASUDA SHIZUO, SENBA NORIAKI, KAWAMURA KENICHI, TAZAWA TATSUO
Format Patent
LanguageEnglish
Published 10.12.1999
Edition6
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
FLUES
FURNACES
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
HEATING
KILNS
LIGHTING
MECHANICAL ENGINEERING
OPEN SINTERING OR LIKE APPARATUS
OVENS
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES
RETORTS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To maintain the arirtightness of the contact portion between a packing and a plasma electrode even after the elasticity of the packing itself is lost. SOLUTION: A packing storing chamber 11 is arranged on an upper part of a ceiling wall 3 of a plasma arc type ash melting furnace 1. A plasma electrode 4 is hung down while passing through a hole formed in the packing storing chamber 11 and the ceiling wall 3. An annular packing 12 is arranged inside the packing storing chamber 11. An inside hole 12a of the packing 12 is in close contact with the outer peripheral face of the plasma electrode 4 that has a circular cross section. A plurality of pressing plates 15 are arranged on the outer peripheral face of the packing 12. The pressing plates 15 are not fixed on the packing storing chamber 11. The packing 12 is urged toward the plasma electrode 4 side by means of a coil spring 16 provided under a compression state between the inside wall of the packing storing chamber 11 and the pressing plates 15.
Bibliography:Application Number: JP19980145521