Yantai Longyuan Power Technology Co., Ltd.

Chinese Academy of Sciences

Bp P.l.c.

Petrochemical Research Institute, Petrochina

Huaijun Ma

Peng Liu

Yupeng Wang

Lei Wang

Yubin Zhang

Peng Li

Xingyuan Cui

Hong Tang

Chaoqun Zhang

Yuwang Miao

Xinguang Wang

Bingchun Wang

Xiaoyong Zhang

Yongsheng Dong

Tao Niu

Lijun Yan

Congxin Wang

Zhijian Tian

Wei Qu

Renshun Xu

A method for decreasing nitrogen oxides of a pulverized coal boiler using burners of internal combustion type including during the operation of the boiler, ignition sources in the burners of internal combustion type mounted on side walls of the boiler are always in a working state, and igniting the pulverized coal in the burners in advance; decreasing secondary air amount in a primary combustion zone of the boiler so that the primary combustion zone is in a relatively strong reducing atmosphere and an oxygen-deficient condition for inhibiting generation of NOx is created; and supplying remaining air from an upper part of a furnace of the boiler in a form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing efficiency of the boiler.

Method for decreasing nitrogen oxides of a pulverized coal boiler using burners of internal combustion type

Growing community of inventors

Shandong, China

Huaijun Ma