Title:
STOKER-TYPE INCINERATOR AND METHOD FOR CONTROLLING COMBUSTION IN THE INCINERATOR
Document Type and Number:
WIPO Patent Application WO/2008/029712
Kind Code:
A1
Abstract:
The flow rate of steam is rapidly recovered before the flow rate of steam of a boiler for
the recovery of heat in an exhaust gas is significantly lowered. Even when the
state of combustion within an incinerator has been rapidly changed, a change in
properties of the combustion exhaust gas is suppressed. A material to be burned is
introduced through a hopper into a stoker furnace. Primary air is introduced through
a primary air pipe provided below the stoker, and primary combustion is carried
out with primary air in a primary combustion chamber. Further, in a secondary
combustion chamber above the primary combustion chamber, secondary combustion
is carried out with secondary air. In recovering the heat of exhaust gas passed
through the secondary combustion chamber by a boiler, when the temperature of
the exhaust gas measured with a thermometer for an exhaust gas is below the lower threshold
value, or when the concentration of oxygen in the exhaust gas measured in an oxygen
concentration measuring device exceeds the upper threshold value, the flow
rate of the primary air in its part introduced into the hopper-side stoker is increased.
When the concentration of oxygen in the exhaust gas measured with an oxygen/carbon
monoxide concentration measuring device is below the lower threshold value,
or when the concentration of carbon monoxide exceeds the upper threshold value,
or when the temperature measured with the thermometer for an exhaust gas exceeds
the upper threshold value, the flow rate of the secondary air is increased.
Inventors:
MAWATARI, Masayuki (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Arai-cho Shinhama 2-chome, Takasago-sh, Hyogo 86, 6768686, JP)
馬渡 匡之 (〒86 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社 高砂研究所内 Hyogo, 6768686, JP)
NAMERISAWA, Kouji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
滑澤 幸司 (〒15 神奈川県横浜市金沢区幸浦一丁目８番地１三菱重工業株式会社 横浜製作所内 Kanagawa, 2368515, JP)
IIDA, Kenji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
馬渡 匡之 (〒86 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社 高砂研究所内 Hyogo, 6768686, JP)
NAMERISAWA, Kouji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
滑澤 幸司 (〒15 神奈川県横浜市金沢区幸浦一丁目８番地１三菱重工業株式会社 横浜製作所内 Kanagawa, 2368515, JP)
IIDA, Kenji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
Application Number:
JP2007/066924
Publication Date:
March 13, 2008
Filing Date:
August 30, 2007
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 1088215, JP)
MAWATARI, Masayuki (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Arai-cho Shinhama 2-chome, Takasago-sh, Hyogo 86, 6768686, JP)
馬渡 匡之 (〒86 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社 高砂研究所内 Hyogo, 6768686, JP)
NAMERISAWA, Kouji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
滑澤 幸司 (〒15 神奈川県横浜市金沢区幸浦一丁目８番地１三菱重工業株式会社 横浜製作所内 Kanagawa, 2368515, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 1088215, JP)
MAWATARI, Masayuki (MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Arai-cho Shinhama 2-chome, Takasago-sh, Hyogo 86, 6768686, JP)
馬渡 匡之 (〒86 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社 高砂研究所内 Hyogo, 6768686, JP)
NAMERISAWA, Kouji (MITSUBISHI HEAVY INDUSTRIES LTD., 8-1, Sachiura 1-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 15, 2368515, JP)
滑澤 幸司 (〒15 神奈川県横浜市金沢区幸浦一丁目８番地１三菱重工業株式会社 横浜製作所内 Kanagawa, 2368515, JP)
International Classes:
F23G5/50; F23G5/00; F23G5/44; F23G5/50; F23G5/00; F23G5/44
Attorney, Agent or Firm:
OKUYAMA, Shoichi et al. (8th Floor, Akasaka NOA Bldg.2-12, Akasaka 3-chom, Minato-ku Tokyo 52, 1070052, JP)