COMBUSTION BURNER, SOLID-FUEL-FIRED BURNER, SOLID-FUEL-FIRED BOILER, BOILER, AND METHOD FOR OPERATING BOILER

• Main Authors: ABE NAOFUMI, KASAL JUN, MATSUMOTO KEIGO, DOMOTO KAZUHIRO
• Format: Patent
• Language: English; Korean
• Published: 19.06.2015
• Subjects: AIR; AIR SUPPLY; BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DRAUGHT-INDUCING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

연소 버너에 있어서, 미분탄과 1차 공기를 혼합한 연료 가스를 취입 가능한 연료 노즐(51)과, 이 연료 노즐(51)의 외측으로부터 2차 공기를 취입 가능한 2차 공기 노즐(52)을 마련하는 동시에, 연료 노즐(51)의 선단부에 있어서의 축 중심측에 보염기(54)를 마련하고, 연료 노즐(51)의 내벽면과 이 보염기(54) 사이에 정류 부재(55)를 마련함으로써, 고체 연료와 공기가 혼합한 연료 가스의 적절한 흐름을 실현 가능하게 한다. A solid-fuel-combustion burner (320;420) that is used in a burner portion of a solid-fuel-combustion boiler for inputting pulverized solid fuel and air into a furnace (11), the solid-fuel-combustion burner (320;420) comprising a fuel burner (321;421) arranged to input pulverized fuel and primary air into the furnace (11); and a secondary air port (330;430) arranged to input secondary air from the outer periphery of the fuel burner (321;421), wherein a cross type split member (324;424) obtained by intersecting a plurality of inner flame stabilization members in a plurality of directions is disposed at a front side of a passage of the fuel burner (321;421), and the width of the split member (324;424) is different for each direction.