改装鍋炉前拱以摻烧无烟煤

• 作 者: 徐俊瑞
• 机 构: 宁波永耀电厂,
• 出 处: 电力技术
• 发表日期: 1960年05期
• 关键词: 无烟煤 高位发热量 抛物线型 高温辐射 汽压 断火 杠炭 二次风 炉膛 抛物

我厂锅炉如图1所示,原以高位发热量在6,300大卡/公斤以上的优质烟煤为燃料。开始掺烧无烟煤时,才掺10～20%,就有断火现象,出力及汽压都不稳定。党委一开始就十分重视这一问题,因此对如何解决这一问题酝酿了很长时间。特别考虑了将现有前拱改为抛物线型或者缩短前拱以利吸收炉膛高温辐射热的两个方案。

I plant the boiler shown in Figure 1, the original high fever in the 6,300 kcal / kg of high quality bituminous coal as fuel. At the beginning of mixing anthracite, only doped 10 ~ 20%, there is off the fire phenomenon, output and steam pressure are not stable. The party committee attaches great importance to this issue from the very beginning, and therefore has been brewing for a long time on how to resolve this issue. In particular, the two schemes of changing the existing front arch into a parabola or shortening the front arch to absorb the high temperature radiant heat of the furnace are specially considered.