What are the garbage screening machines and their functions？

Introduction: Garbage screening machines play a key role in the garbage disposal process. They can efficiently separate different components in garbage, such as recyclables, organic garbage, inorganic garbage, etc., so as to maximize the recovery and reuse of resources. This not only helps to reduce environmental pollution caused by landfill and incineration, but also reduces the cost of garbage disposal. The screened garbage is easier to carry out subsequent biological or chemical treatment, which improves the efficiency and effectiveness of garbage disposal. There are many types of garbage screening machines and their functions are extensive. Common screening machines include vibrating screening machines, drum screens, and air separators. Vibrating screening machines are mainly used for particle size screening and separation of materials of different sizes; drum screens are graded according to particle size and are equipped with dust removal systems, which are highly environmentally friendly; air separators use aerodynamic principles to separate light and heavy materials. The following is a detailed introduction to these garbage screening machines and their functions:

1.Drum screening machine

Garbage Screening Trommel Screen

Drum screening machine is an important equipment in the field of garbage disposal. Its working principle is based on screens of different sizes and the continuous rotation of the drum. During operation, garbage and recyclables are transported to the rotating drum. As the drum rotates, larger volumes of garbage will be intercepted by the screen, while smaller particles will pass through the gaps in the screen and fall into the corresponding container below, thereby accurately separating garbage and recyclables by particle size. In urban waste treatment plants, drum screening machines can carefully separate complex mixed garbage into different categories such as organic waste, plastics, glass, and metals, laying a solid foundation for subsequent resource reuse and harmless treatment. In recycling stations, it can help staff efficiently complete classification and processing work, with significant advantages such as high efficiency, high degree of automation, energy saving and environmental protection, greatly improving garbage treatment efficiency, effectively reducing labor costs, and minimizing resource waste.

2. Vibration screening machine

Garbage Screening Vibrating Screen

The vibration screening machine mainly relies on the strong vibration force generated by the exciter to work. When the garbage is transported to the screen surface, the material continues to jump on the screen surface under the action of the vibration force. Among them, garbage particles smaller than the mesh size will quickly pass through the screen and fall down as fine materials; while garbage larger than the mesh size will remain on the screen and be separated as coarse materials to complete the screening operation. In urban garbage treatment centers and landfills, vibrating screens are widely used. They can accurately classify incoming garbage according to particle size, greatly improve garbage treatment efficiency, and are suitable for various garbage treatment scenarios. It is one of the key equipment to ensure the efficient operation of the garbage treatment process.

3. Wind screening machine

Garbage Screening Wind Sifter

The working principle of the wind screening machine is unique. It uses wind power to effectively separate light materials from heavy materials. In the garbage treatment process, the wind screening machine works according to the density difference of the garbage, and distinguishes light garbage with lower density, such as plastics and paper, from heavy garbage with higher density, such as masonry and glass. In this way, the classification degree of garbage can be further refined, the garbage treatment efficiency can be significantly improved, the utilization rate of recyclables can be improved, and favorable conditions can be created for the resource utilization of garbage.

4. Landfill waste screening machine

Garbage Screening Ballistic Screen

The landfill waste screening machine adopts a design that combines material screens with vibration mechanisms. When the landfill waste is fed into the machine, the vibration mechanism starts to work, causing the waste to vibrate continuously on the material screen. In this process, smaller particles of waste can pass through the holes of the screen and be successfully separated; while larger objects remain on the screen. By flexibly adjusting the size of the screen aperture, the landfill waste screening machine can accurately separate garbage of different sizes. This can not only effectively recycle useful items such as metals and glass in landfill waste and reduce the waste of resources, but also effectively separate and treat harmful substances such as chemical waste, reducing the risk of environmental pollution. In addition, the landfill waste screening machine has a high degree of automation, which can realize full-process automated operation, greatly improving work efficiency.

PS: Garbage screening machines are an indispensable and important tool for modern urban waste treatment. These garbage screening machines improve resource utilization efficiency, reduce environmental pollution, and promote the sustainable development of garbage treatment.

Author : Serena Chang

Serena Chang is the writer of blog and news column. With more than 10 years of working experience in the machinery industry, she has a comprehensive understanding of environmental protection machinery and is willing to share useful knowledge of environmental protection machinery.