Comprehensive utilization of Incineration furnace slag

The slag of Incineration furnace is a kind of solid waste generated in the process of Incineration, which is formed by the cooling and solidification of inorganic substances in garbage after melting at high temperature. The slag is mainly composed of silicon dioxide, iron oxide, Calcium oxide, etc., and also contains a small amount of harmful substances such as heavy metals. For Incineration plants, how to treat the slag is an important environmental problem. The comprehensive utilization of slag can solve this problem while also bringing economic benefits.

1、 Comprehensive utilization of slag

1. Cement production

The Calcium oxide, iron oxide and other substances in the slag can be used as raw materials of cement. In the cement production process, slag can replace some limestone and clay, thereby reducing the use of raw materials and reducing production costs. Meanwhile, substances such as silica in the slag can also improve the strength and durability of cement.

2. Road construction

Slag can be used as a filler in road construction for the construction of roadbeds and pavements. Slag has good stability and durability, which can effectively improve the bearing capacity and compressive capacity of roads, while also reducing the cost of road construction.

3. Brick manufacturing

Slag can be used as a raw material in brick manufacturing. The Calcium oxide, iron oxide and other substances in the slag can be mixed with lime, quartz and other materials and fired at high temperature to make bricks. Slag bricks have high strength and durability, while also reducing the consumption of natural resources.

2、 Operating steps for comprehensive utilization of slag

1. Collection of slag

During Incineration, the slag will be collected to a specific area. The collected slag needs to undergo preliminary treatment to remove harmful substances from it.

2. Classification of slag

The slag needs to be classified and the available and unusable parts should be separated. The usable parts can be processed subsequently, while the unusable parts need to be safely disposed of.

3. Treatment of slag

The available slag needs to be treated accordingly, such as grinding, screening, sintering, etc. According to different comprehensive utilization methods, different treatments are required.

4. Transportation of slag

The treated slag needs to be transported to the corresponding utilization site. Attention should be paid to the safety and environmental protection of slag during transportation.

5. Utilization of slag

After the slag reaches the utilization site, corresponding utilization operations need to be carried out. According to different utilization methods, different operations are required.

3、 Environmental and Economic Benefits of Comprehensive Utilization of Slag

Comprehensive utilization of slag can effectively solve the problem of slag treatment in Incineration plants, and can also bring environmental and economic benefits. The comprehensive utilization of slag can reduce the waste discharge of Incineration plant and reduce environmental pollution. At the same time, the comprehensive utilization of slag can also bring certain economic benefits, such as reducing raw material costs and improving product quality.

4、 Summary

Incineration furnace slag is an important solid waste, and how to deal with it is an important environmental problem. The comprehensive utilization of slag can effectively solve this problem, while also bringing environmental and economic benefits. In the process of comprehensive utilization of slag, corresponding operational steps and classification processing need to be carried out, while also paying attention to the safety and environmental protection of slag. The comprehensive utilization of slag is an important environmental protection industry and also an industry with broad prospects.