Investigation of Fuel Briquettes Properties Using Wastes of Mineral Wool Production

Abstract

One of the most common melt production units in mineral wool product manufacture is a shaft type unit - cupola furnace. The process feature of raw material preparation is a screening process of both solid fuel (coke) and mineral matter (gabbro, limestone). At that quite large amount of fine fraction materials is generated, which are impossible to be used in a cupola furnace considering severe fractional makeup requirements for the charge materials. The usage of fine fraction is possible with a briquetting process. Four-component mixture involving mineral matter (gabbro), coke fines, binding agents and water was used for a trial lot briquette formation. The binding agent most efficient for their formation was determined experimentally. It was established that drying time sufficient to get a strong product comprises 10 minutes at the temperature of 100 °С. STA 449 F3 Jupiter unit was used for thermogravimetric and differential scanning calorimetric analyses and coke fine samples were examined.

The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder

“…Mineral wool waste is used in industries including ceramics as an additive to precast ceramic products [11], concrete mortar to improve its mechanical properties [12,13], composites [14], or briquettes [15]. One contemporary form of mineral wool recycling reported in the published literature sources is immobilization in geopolymers [16]. Preliminary studies demonstrate that mineral fibers, due to their aluminum and silicon content, can be an excellent raw material for geopolymer production.…”