Coke-Fired Rock Wool Production Line: Where Is the Lower-Cost Path?
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Author : SUNTHERM
Update time : 2025-08-18 13:50:54
In the high-temperature melting stage of the rock wool industry, the choice of heat source directly affects production costs and system stability. Compared with natural gas or heavy oil systems, why has the coke-fired rock wool production line attracted attention as a lower-cost technical path?
Coke, as a solid fuel, features stable pricing, high calorific value, and long-lasting combustion. Using a coke furnace to melt basalt and other raw materials can significantly reduce energy procurement costs, particularly in regions rich in coal and coke resources or where natural gas costs are high. Furthermore, by optimizing furnace design and oxygen supply ratios, coke combustion efficiency can now rival that of mainstream gas-fired systems.
The SUNTHERM Group’s coke-fired rock wool production line integrates high-temperature sealed combustion technology with a multi-zone temperature control system, achieving uniform melting, controllable energy consumption, and stable operation. The entire line is equipped with intelligent feeding, high-efficiency fiberization, and environmentally friendly dust collection systems, forming a complete energy-saving production process. Compared with natural gas systems, unit investment costs and operating expenses can be reduced by approximately 15–25%, making it especially attractive for new projects.
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