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一般的土法煉銅,都是采用木炭作为燃料,在全国范圍內大搞土法煉銅以后,木炭需要量大增,不但供应困难,而对森林的破坏更大,大家就形容土爐是“山老虎”。经过各地政治掛帅,深鑽苦干大闹技术革命,积极寻找代用品會取得不少成績,焦炭、无烟煤都先后使用到煉銅上。在寻找代用品的要求下,我們會試用富源白煤(烟煤)来煉銅,証明在一定条件下是可以使用的。我們使用白煤煉銅是在土观音爐内进行的。銅矿石經过焙燒,會用白煤和木炭各半混合使用,亦會全部使用白煤,在正常配料中,用量都在爐料的20％至25％的范圍內。具体冶煉过程中我們的經驗是:按照一般土爐操作,在烘好烤好爐子以后封金门,裝好一爐炭高1.5～1.8公尺,采取自然通风慢慢燃燒烤爐約1.5～2小时,木炭下落50公分以上再加滿木炭,并即开始鼓小风,至下降到可以进料时就用白煤与木炭,
The general indigenous method of copper smelting, are the use of charcoal as a fuel in the nation after extensive copper smelting, the substantial increase in demand for charcoal, not only supply difficulties, but greater damage to the forest, we describe the earth oven is “Mountain Tiger.” After all the political leadership, deep drilling hard to stir up the technical revolution, actively looking for substitutes will achieve a lot of achievements, coke, anthracite have been used to smelt copper. At the request of looking for substitutes, we will try Fuyuan white coal (bituminous coal) for copper smelting to prove that it can be used under certain conditions. We use white coal copper smelting is carried out in the earth God furnace. After roasting, the copper ore will be mixed with white coal and half charcoal, and all white coal will be used. In normal ingredients, the amount will be in the range of 20% to 25% of the charge. The specific smelting process in our experience is: in accordance with the general operation of the oven, baked in a good oven after the closure of the door, installed a high carbon 1.5 to 1.8 meters, take natural ventilation slowly burning oven about 1.5 to 2 hours , Charcoal drop more than 50 cm and then add charcoal, and that is the beginning of a small wind drum, down to the time you can feed with white coal and charcoal,