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烧石灰要省煤,主要在于:窑内通风良好,原煤完全燃烧,充分利用余热,加快石料导热速度,掌握窑内分层,具体地说,要做好以下几点:一、控制石料大小:石灰石导热速度比水约小5倍,石料厚度以不大于3市寸、不小于1市寸为宜,有利通风升温快熟。二、看天看煤配石:窑高8米,窑口直径2米左右,使用5000大卡左右的煤,上半年吨煤可烧石灰4吨左右,煤石比为1:6。下半年吨煤可烧石灰5吨左右,煤石比为1:7。晴天略高,雨天略低。天热略高,天冷略低。
Burning lime to save coal, mainly lies in: kiln ventilation is good, the coal completely burned, make full use of waste heat, speed up the thermal conductivity of stone, to master the kiln stratification, specifically, to do the following: First, control the stone size: Limestone thermal conductivity of about 5 times smaller than the water, stone thickness of not more than 3 inch, not less than 1 inch size is appropriate, favorable ventilation, warm fast. Second, look at the weather with coal stone: kiln height 8 meters, kiln diameter of about 2 meters, using about 5,000 kcal of coal, the first half of tons of coal can burn 4 tons of lime, coal to stone ratio of 1: 6. The second half of tons of coal can be burnt lime about 5 tons, coal to stone ratio of 1: 7. Slightly sunny, rainy days slightly lower. Heat is slightly hot, cold weather is slightly lower.