Exhaust gas treating apparatus
AssigneeEbara Corporation
InventorsHiroshi Yoshida, Mitsuyoshi Kaneko, Ryuichi Ishikawa
Life of this patent
Estimating the term…
Abstract
A compact exhaust gas treating apparatus which is improved in the bag filter performance in order to reduce the amount of dioxin contained in exhaust gas discharged from municipal refuse incineration equipment, industrial waste incineration equipment, etc. An activated carbon filter is disposed along the filter cloth of the bag filter at the purified gas outlet side of the filter cloth so that exhaust gas passes through the activated carbon filter after passing through the filter cloth, thereby being purified.
Claims6
An exhaust gas treating apparatus comprising:
- a bag filter including a filter cloth for removing dust from exhaust gas which is passed through said filter cloth, said bag filter further including a retainer extending into a space defined by said bag filter for retaining a shape of said filter cloth;
- and
- an activated carbon filter installed radially inward of and along said filter cloth at an exhaust gas outlet side of said bag filter for removing dioxin and NO.sub.x from the exhaust gas in order to discharge purified exhaust gas;
- wherein said activated carbon filter is spaced from said filter cloth and is of a thin size for providing a minimal pressure loss when a pulse jet for clearing the dust on the filter cloth is intermittently applied against said filter cloth, such that the carbon filter will not interfere with a deformation of the filter cloth caused by said pulse jet, and wherein said activated carbon filter is detachably provided as an integral part of said retainer of said bag filter.
An exhaust gas treating apparatus comprising:
- a bag filter including a filter cloth for removing dust from exhaust gas which is passed through said filter cloth;
- a retainer for retaining a shape of said filter cloth, the retainer extending into a space defined by said bag filter;
- an activated carbon filter installed radially inward and spaced from said filter cloth at an exhaust gas outlet side of said bag filter for removing dioxin and NO.sub.x from the exhaust gas in order to discharge purified exhaust gas;
- and
- means for holding the activated carbon filter and retainer so as to permit the removal of the carbon filter and retainer from the apparatus without removing the filter cloth.
Dependencies are inferred from the claim text.