我国锅炉行业个别锅炉厂在六十年代曾改造或试制过3.5t/h、4t/h和5t/h的燃用烟煤的半沸腾锅炉,一些用户也自行改造过几台半沸腾锅炉,但由于该种锅炉当时的燃烧设备及侧、前密封等问题没有得到很好解决,飞灰量过大,漏煤严重及热效率低等原因使得该炉型没有得到进一步发展。但在国外,半沸腾锅炉还是有所发展。目前英国最大容量已达186t/h,法 Some boiler plants in the boiler industry of our country have reformed or trial-produced 3.5t / h, 4t / h and 5t / h semi-boiling bituminous coal-fired boilers in the 1960s, and some users also reworked several semi-boiled boilers. However, At that time, the burning equipment of the kind of boilers and the problems such as the side and front seals were not well solved. The excessive fly ash, serious coal leakage and low thermal efficiency led to the failure to further develop the type of boilers. However, in foreign countries, semi-boiling boilers still developed. Currently the largest British capacity has reached 186t / h, France