Treatment of slag from garbage power plants

Treatment of slag from garbage power plants

Garbage power plants are environmentally friendly facilities that can convert waste into energy, but in the process of generating electricity from waste, a large amount of slag is generated. The treatment of slag has always been a challenge faced by garbage power plants. This article will introduce the treatment methods and operating steps of slag from garbage power plants.

Characteristics of slag

slag refers to the solid waste remaining after high-temperature combustion during the garbage power generation process. The characteristics of slag are high temperature, large specific gravity, and high hardness. Meanwhile, the slag contains a large amount of heavy metals and harmful substances, which require special treatment.

2、 Treatment method of slag

1. Magnetic separation method

Magnetic separation method is a commonly used slag treatment method. By using magnetic separation equipment, the metal substances in the slag are separated, achieving the goal of reducing the volume of the slag and reducing environmental pollution. The specific operation steps are as follows:

(1) Feed the slag into the magnetic separation equipment;

(2) Separate the metal substances in the slag through the action of a magnetic field;

(3) Reuse the separated metal substances and landfill or recycle the remaining slag.

2. Crushing method

The crushing method is to mechanically crush the slag and decompose it into smaller particles, achieving the goal of reducing the volume of the slag and facilitating subsequent treatment. The specific operation steps are as follows:

(1) Feed the slag into the crushing equipment;

(2) Crush the slag through mechanical force;

(3) Landfill or recycle the crushed slag.

3. Water quenching method

The water quenching method is to water quench the slag to quickly cool it, achieving the goal of reducing the volume of the slag and reducing environmental pollution. The specific operation steps are as follows:

(1) Feed the slag into the water quenching equipment;

(2) By the cooling effect of water, the slag is quickly cooled;

(3) Landfill or recycle the cooled slag.

3、 Recycling and utilization of slag

Although slag is a waste from the garbage power generation process, it still has certain utilization value. Slag can be used in fields such as road construction and cement production. The specific utilization methods are as follows:

1. Road construction

Slag can be used as a basic material for roads, and its hardness and stability can ensure the service life and safety of the road.

2. Cement production

Slag can be used as raw material for cement production. Because it contains a lot of silicate, Aluminate and other substances, it can improve the strength and stability of cement.

4、 Conclusion

The slag treatment of garbage power plants is an important link in the process of garbage power generation. By using treatment methods such as magnetic separation, crushing, and water quenching, the slag volume can be effectively reduced and environmental pollution can be alleviated. At the same time, the recycling and utilization of slag can also bring certain benefits to society and economy.

Treatment of slag from garbage power plants

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