Aerodynamic Assisted Waste Disposal: Detailed Waste Windshifter

1). Garbage windshifter machine is a kind of equipment used for garbage disposal, which mainly uses the principle of aerodynamics to classify and screen garbage.

1. Working principle

Based on the difference in density and air resistance of different materials. When garbage is under the action of wind, lighter materials (such as plastic film, paper, fiber, etc.) will be carried away by the airflow, while heavier materials (such as metal, glass, stone, etc.) will fall due to gravity. For example, in a typical windshifter machine, the garbage is placed on an inclined conveyor belt, which uniformly conveys the garbage into a sorting chamber with an updraft. Like plastic garbage, due to its low density, it will be blown to a higher position under the action of the updraft and then collected in a specific container; while heavier garbage such as metal will fall directly under the action of gravity and enter another collection device.

2). Application scenarios and advantages

In urban domestic waste treatment plants, garbage winnowing machines can preliminarily classify mixed garbage and reduce the workload of subsequent processing. It can quickly separate recyclable lightweight garbage such as plastics and paper, and improve the efficiency of resource recycling. Compared with traditional manual sorting, the wind sorter can handle a large amount of garbage, and the sorting accuracy is higher, and it can also reduce labor costs and labor intensity. In the treatment of construction waste, the wind sorter can also separate impurities such as wood and plastic, so that the useful components (such as sand and gravel) in the construction waste can be better recycled and used for the production of building materials, etc.

3). The garbage windshifter is suitable for a wide range of people, mainly including the following categories:

1. Garbage treatment plant staff: The garbage treatment plant will receive a large amount of mixed garbage from all over the city. The windshifter  can preliminarily classify the garbage and separate materials of different densities, such as separating lightweight plastics and paper from heavier metals and glass, etc., to reduce the pressure of subsequent processing procedures and improve the overall processing efficiency and resource recycling rate.

2. Recycling station operators: In the recycling station, the windshifter can quickly classify the recycled garbage and separate recyclables such as plastics and paper from other non-recyclables, which is convenient for the subsequent further processing and sales of various recyclables, and improve the operating efficiency and economic benefits of the recycling station.

3. Environmental protection department staff: Environmental protection departments are responsible for supervising and managing the environmental quality and garbage disposal in the region. The windshifter helps to achieve the reduction, resource utilization and harmless treatment of garbage, meets environmental protection requirements, helps environmental protection departments better perform their duties and improve regional environmental quality.

4. Construction unit personnel: A large amount of construction waste, such as discarded wood, plastic, metal, etc., will be generated during the construction process. The windshifter can sort the construction waste, separate the materials with recycling value, realize the reuse of resources, reduce construction costs, and reduce the pollution of construction waste to the environment.

5. Rural sanitation workers: With the improvement of rural living standards, the amount of rural domestic garbage is also increasing. The windshifter can help rural sanitation workers to conduct preliminary classification of domestic garbage, separate recyclables from non-recyclables, improve the efficiency of rural garbage disposal and resource recycling rate, and improve rural environmental sanitation.

4). The recycling accuracy of the garbage windshifter varies depending on the equipment type, garbage type, equipment debugging and other factors. The following are some common situations:

1. Comprehensive windshifter : It can sort the original and mixed urban domestic garbage into six categories: inorganic, organic, sand, non-recyclable combustible, ferromagnetic and battery, film and plastic. The sorting rate can reach more than 85%, and the film plastic sorting rate can reach more than 90%.

2. Light material comprehensive sorting equipment: By adjusting the wind speed and wind direction, small and light materials can be sorted out more accurately, which greatly improves the purity of the recycled materials, but there is no specific accuracy data description.

3. Domestic waste windshifter : It can separate all the large pieces of garbage from the garbage (particle size greater than 400mm, sorting rate 99%), separate more than 95% of the sand and soil in the garbage (particle size below 30mm, the aperture can be adjusted according to the composition of the garbage), and separate 25-30% of the organic matter (below 30mm).

4). Parameter table