PYROLYSIS GAS COMBUSTION METHOD AND PYROLYSIS GAS COMBUSTION DEVICE

• Main Authors: TODAKA MITSUMASA, ITO TORU, SUZUMURA KEITA, KATO TOSHIRO, OTSUKA NOBUO
• Format: Patent
• Language: English; Japanese
• Published: 21.01.2016
• Subjects: AIR SUPPLY; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DRAUGHT-INDUCING; HEATING; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

PROBLEM TO BE SOLVED: To provide a pyrolysis gas combustion device capable of sufficiently curbing corrosion of a superheater tube of a waste heat boiler.SOLUTION: A combustion device 90, mounted with a waste heat boiler 20, to combust chloride-containing pyrolysis gas generated from a waste gasification melting furnace 80 comprises: a combustion chamber 10 which has a shape of a vertical cylinder; a burner 12 which is installed in the combustion chamber 10 to combust the pyrolysis gas; and a sulfur supply section 14 which supplies a sulfur-containing compound to the combustion chamber 10. The burner 12 ejects the pyrolysis gas in a direction parallel to the direction of the tangent to an inner wall of the combustion chamber 10 and generates a swirl flow 11 of combustion exhaust gas in the combustion chamber 10. The sulfur supply section 14 supplies the sulfur-containing compound to the swirl flow 11. 【課題】廃熱ボイラの過熱器管の腐食を十分に抑制することが可能な熱分解ガスの燃焼装置を提供すること。【解決手段】廃熱ボイラ２０を備える廃棄物ガス化溶融炉８０から発生する塩化物を含む熱分解ガスを燃焼する燃焼装置９０であって、縦型円筒形状を有する燃焼室１０と、燃焼室１０に設置され、熱分解ガスを燃焼するバーナ１２と、燃焼室１０に硫黄含有化合物を供給する硫黄供給部１４と、を備える。バーナ１２は、燃焼室１０の内壁の接線方向と平行方向に熱分解ガスを吐出して、燃焼室１０内において燃焼排ガスの旋回流１１を形成する。硫黄供給部１４は、旋回流１１に硫黄含有化合物を供給する。【選択図】図１