一、砖坯原料1、炉灰渣:大、中、小型锅炉没烧尽的灰渣,灰渣一般含未烧尽的碎煤核和炉灰末20—50%。2、土:一般黄粘土或黄沙土均可,以黄粘土为好。3、水:井水或河水,最好用不含碱性的水。二、制砖坯1、将炉灰渣过两遍筛:先用粗筛子筛一遍,把筛出的大炉渣、煤核单堆在一块(待作燃料);然后再用细筛子筛一遍,把筛出的较大一点的炉渣和煤核也另放一堆(也待作燃料)。筛过两遍后的炉灰渣,大的直径不能大于3毫米,越细越好(待制砖坯用)。2、炉灰渣和土的配比:炉灰 First, the raw materials of brick 1, furnace ash: large, medium and small boilers did not burn the ash, ash generally contains unburned broken coal and furnace ash 20-50%. 2, soil: general yellow clay or yellow sand can be, yellow clay as well. 3, water: well water or river, it is best to use alkaline water. Second, the brick system 1, the furnace slag twice over the sieve: first with a sieve sieve again, the sieve out of the large slag, coal single pile in a (to be used as fuel); then sieve again with a fine sieve, the Sift out the larger of the slag and coal are also put another pile (also to be used as fuel). Sieve after twice the furnace ash, large diameter can not be greater than 3 mm, the finer the better (to be used brick). 2, furnace ash and soil ratio: ash