Incineration Slag: Not Waste, But a High-Return Recyclable Resource | RUIJIE Wet Separa...

Many people regard incineration slag as useless waste, but in fact, it is a high-return recyclable resource with great utilization value. RUIJIE's wet separation line, specially designed for incineration slag sorting, turns this "waste" into treasure, realizing efficient recycling of metals and aggregates.

What Is Incineration Slag Exactly?

Incineration slag, also named Furnace slag, is a solid residue formed by cooling the non-metallic molten mixture that floats on the surface of metals during the high-temperature smelting, smelting and combustion of ores, metals and wastes.

It is not a single useless substance, but often contains recyclable metals such as iron, aluminum, copper and zinc, which can be extracted through professional sorting equipment to create additional economic value.

Common Sources of Furnace Slag

Furnace slag is widely produced in various industrial high-temperature processes, mainly divided into three categories:

• Metallurgical slag: Waste residue generated from steelmaking, copper smelting and aluminum smelting, which is rich in recoverable ferrous and non-ferrous metals.

• Incineration slag: Ash residue left after garbage incineration in waste treatment plants, the most common type of furnace slag in daily industrial production.

• Industrial slag: Residue after combustion in industrial boilers and kilns, with stable properties and great potential for resource reuse.

Practical Uses of Furnace Slag

With proper treatment and sorting, furnace slag can be fully reused in multiple fields, realizing resource recycling and environmental protection:

• Construction aggregates: Replace natural stones and sand, used in road construction, concrete production and roadbed cushion.

• Brick and block making: Used to produce environmental protection bricks, permeable bricks and aerated blocks, saving clay and cement resources.

• Cement raw materials: As a cement admixture, it improves cement strength and reduces production costs.

• Backfill engineering: Used for backfilling construction foundation pits, mine collapse areas and depressions.

• Water treatment filter: Its porous structure can adsorb impurities, suitable for sewage treatment.

• Valuable metal extraction: Recover iron, aluminum, copper, zinc and other metals through magnetic separation and eddy current separation.

• Soil improvement: Some furnace slag can adjust soil pH and supplement minerals for agricultural production.

RUIJIE Wet Separation Line: Specialized for Incineration Slag Sorting

RUIJIE wet separation line is specially designed for incineration slag sorting, with scientific process and high efficiency, turning waste into high-value resources.

The whole process is simple and efficient: Furnace slag is evenly fed from the hopper to the trommel screen through a reciprocating feeder for initial separation, sorting out raw materials and large materials.

Electromagnetic overband separator is used to select large iron materials; iron-containing materials are crushed by a crusher and then fall into a magnetic separator to select iron particles and iron powder.

The remaining materials flow through the jig concentrator with water for separation, then into the suspended permanent magnetic separator and shaking table to screen out metal powder, and aluminum materials are sorted by the eddy current separator at the end of the production line.

Uncrushed materials are conveyed to the secondary crushing link by a conveyor belt for re-sorting and recovery.

This line achieves a 98% metal recovery rate, is equipped with a sewage treatment system, and is efficient and energy-saving, far exceeding the average level of peers.

Conclusion: Furnace Slag Is a High-Return Resource

Furnace slag is never a useless waste. With professional sorting equipment and scientific solutions, it can be turned into a high-return recyclable resource.

RUIJIE wet separation line helps enterprises extract valuable metals and reuse aggregates from incineration slag, reducing costs and increasing efficiency, and creating sustainable economic and environmental benefits.

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