Domestic waste refers to solid waste generated by people in their daily lives or in activities that provide services for their daily lives, as well as solid waste that is deemed as urban domestic waste by laws and administrative regulations. Urban domestic waste mainly includes domestic waste from residents, market trade and commercial waste, garbage from public places, street cleaning garbage, and domestic waste from schools, enterprises and institutions; the resulting problems of arbitrary stacking of domestic waste, large-scale occupation of land, serious environmental pollution, and large-scale waste of resources have become important factors affecting environmental protection and sustainable development. Since urban domestic waste is a mixture of multiple wastes, regardless of whether sanitary landfill, composting, or incineration is used as a disposal technology, changing the miscellaneousness of garbage through the classification of domestic waste is an important prerequisite for realizing the resource utilization, reduction, and harmlessness of the classification and disposal of domestic waste. In terms of the classification of domestic waste, after more than half a century of research and experience accumulation, Western developed countries have formed their own complete classification systems and achieved remarkable results, which are of great reference significance for the classification of domestic waste in my country.

Sorting is a prerequisite and top priority for the treatment of domestic waste. Due to the complexity of the composition of domestic waste in my country, domestic waste relies heavily on comprehensive sorting during treatment, and the requirements for sorting equipment are also high. Single sorting cannot effectively solve this problem. Only through comprehensive sorting with a combination of multiple equipment can better results be achieved.

Based on the principles of reduction, harmlessness, resource utilization and energy utilization for the treatment of urban domestic waste, a complete set of technical solutions for the resource utilization of urban domestic waste has been designed and produced. The waste is put into the waste sorting production line system and processed through process systems such as the waste feeding system and the automatic waste sorting system. Municipal solid waste can be sorted and utilized as follows:

1. Inert non-combustible materials - stones, sand, ceramics, etc., used to make environmentally friendly bricks, cement raw materials or landfill;

2. Ferromagnetic metals - iron wire, iron cans, beer caps, etc., used for recycling;

3. Non-ferrous metals - cans, aluminum alloys, aluminum, etc., used for recycling;

4. Plastics - mineral water bottles, beverage bottles, plastic blocks, etc., can be used for cracking and refining, plastic recycling;

5. Remaining combustibles (wood, leather, clothes, rags, etc.) - make RDF fuel rods for heating or power generation.

After municipal solid waste is processed by the system, metal objects are widely used as raw materials by processing companies; fuels with a calorific value of up to 5,000 kcal are considered to be excellent fuels with low pollution and high efficiency, and can be used in industrial boilers, waste incineration power plants or gasification power plants. In particular, the RDF produced after being processed by our equipment has high density, high calorific value, stable combustion conditions, and avoids the generation of dioxins and other substances. It not only reduces the investment in industrial kilns or power stations, but also realizes the stable and continuous operation of industrial kilns or power stations.