济宁车站食堂,担负着400多职工的就餐任务。1968年前使用的是立式灶,耗煤量平均是斤粮斤煤。1969年经过修改,建成“双板双眼回风灶”,斤粮耗煤达5钱以下(最低曾达2.7钱),比改灶前降低煤耗10倍多,12年来为国家节省煤炭250多吨。最初我们只在烧火上下功夫,少添煤,勤添煤,尽量把煤烧透,但这些办法虽耗煤量有所下降,但效果还不理想。在分析了各种节煤灶的优、缺点后,建成“双板双眼回风灶”。在改造中,经过反复试验、修改,我们对“双板双眼回风灶”总结出下列几点,供参考。一、使煤充分燃烧,炉灶结构合理 1.防止煤漏掉,采用了专用炉篦,缩小了炉 Jining station canteen, responsible for the dining task of more than 400 workers. Before 1968 the use of vertical stove, coal consumption is an average of pounds of pounds of coal. In 1969, it was revised to build a “double-sided and double-headed recuperation stove” with a grain coal consumption of less than 5 yuan (minimum 2.7 yuan), a reduction of more than 10 times of the coal consumption before the change of the stove and a reduction of over 250 tons of coal for the country in the past 12 years . Initially we only work hard to burn fire, less coal, ground coal, try to burn through the coal, but these measures although the coal consumption has declined, but the effect is not satisfactory. After analyzing the advantages and disadvantages of various coal-saving stoves, we built “double-plate double-eyes return stoves”. In the transformation, after repeated tests and revisions, we summed up the following points for the “double-plate double-eyes return stove” for reference. First, the full combustion of coal, furnace structure is reasonable 1. To prevent the leakage of coal, using a special grate, narrow the furnace