FIELD: processing and recycling of wastes.
SUBSTANCE: invention relates to methods of processing solid household wastes into fuel and raw materials for rotary cement kilns, where high-temperature synthesis of cement clinker from raw material prepared by wet method takes place. Method includes crushing wastes and further pressing. After preliminary grinding into fractions of 50–100 mm, solid household wastes are mixed with ground sulfur, a substrate containing a culture of thionic bacteria, and maintained for sterilization on open sites. Sterilized wastes are then mixed with the wastes containing carbonates which are preliminarily ground into powder, then mixed with the previously ground wastes containing clay, additionally ground and compacted.
EFFECT: invention provides complete use of solid domestic wastes in composition of fuel-raw material additive for production of cement clinker.
1 cl, 1 dwg
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Authors
Dates
2024-03-26—Published
2023-02-08—Filed