I. Company Profile
MSWsorting company is a high-tech environmental protection enterprise integrating R&D, design, processing, manufacturing, sales, installation, debugging and after-sales service. It specializes in investing and operating various urban and rural waste treatment plants.
Second, technology introduction
For more than 20 years, he has specialized in R&D and design of various garbage disposal technologies and equipment in urban and rural areas. He has hosted and overseen the design and construction of several domestic urban and rural waste treatment plants. He has personally visited the site to guide installation and commissioning, and has extensive practical experience. A large number of first-hand materials, based on absorbing and deepening a large number of first-hand materials, researched and invented a number of urban and rural waste treatment facilities and solid waste treatment solutions that are suitable for China's national conditions.
Urban and rural garbage "fast, harmless, non-residual, resource recycling, industrialization" processing technology, the technology consists of 16 national patents, can be all kinds of urban and rural garbage, the day of zero pollution collection, harmless on that day Processing, recycling of products on the same day.
The technology has been successfully applied to waste comprehensive treatment plants in Luoping County, Jianshui County in Yunnan Province, Tunliu County in Shanxi Province, Lixian County in Liaoning Province, Tengbu Town in Haicheng City of Liaoning Province, and Chishui City in Guizhou Province. With social benefits, it has achieved the goal of harmless, reduced, and resourceful disposal of various kinds of garbage in the region, and has made significant contributions to the establishment of a national sanitation city, landscaping city, and environmental protection model city in the region.
The experts all agreed that this technology uses rubbish to dispose of rubbish, which is in line with the requirements of circular economy development and represents the development direction of China's garbage disposal business. It has created a new resource-based technology concept for the urban and rural domestic garbage disposal technology field.
Third, the process plan
3.1 Alternatives
The proportion of recyclable substances in domestic garbage in Shanghai urban areas (such as: kitchen waste, plastics, and metals) is significantly higher than other cities in China, and the value of resource utilization is high, so it is appropriate to adopt the “integrated treatment technology of domestic garbage”. After the garbage has been completely mechanized and classified, the sorting rate is as high as 85% or more, and the food waste (about 55.78%) is changed to organic fertilizer, waste plastic (about 12.62%) is made of wood-plastic panel and metal (about 0.87). %) Recycling, combustibles (about 23.58%) After being used in incineration power plants, they are used for power generation and other non-recyclables (about 7.15%) for innocent landfill.

3.3 Main process description
3.3.1 Fully enclosed mechanized sorting system
The system adopts uniform waste feeding, automatic sorting system for large pieces of garbage, automatic large-size refuse crushing system, automatic bag-packing trash, automatic crushing system for large organic materials, fully enclosed mechanized winnowing system, and “hot-selection” system. After processing, the garbage can be classified as sand, inorganics, plastics, non-recoverable combustibles, organics and ferromagnetics.
More than 85% of the above garbage can be classified and the plastic separation can reach more than 90%, which lays a solid foundation for the “resources and industrialization” of various waste disposal in urban and rural areas in the next process.

3.3.2 Organic matter high temperature and high pressure hydrolysis hydrothermal fertilizer system
The separated organic matter (about 55.78%) was hydrothermally reacted under high temperature and high pressure for 2 hours, and was expanded and dried. Fertilizer could be produced in 4 hours. The fertilizer is a pure organic fertilizer, which completely eliminates pests and diseases, and bacteria, and has sufficient nutrients. It is a must-use fertilizer for green foods. According to market demand, all kinds of high-efficiency organic-inorganic compound ecological crop special fertilizers can be produced by adding other nutrients.
 
3.2.3 Waste plastic wood-plastic material system
Waste plastics (approx. 12.62%) selected from the waste and wood fibres that can be crushed, such as used wood, are mixed in proportion, special additives are added, and modified by high temperature and high pressure to form wood-plastic profiles and plates. Widely used in all walks of life. Not only does it save a lot of forest resources, it also administers "white pollution." Waste disposal has been realized, with low input and high output, and a comprehensive harvest of environmental benefits and economic benefits.

3.3.4 Recyclables recycling system
The sorted combustibles (about 23.58%) have the characteristics of high enthalpy (about 3,000 kcal) and low moisture content. They can be transported to Laogang incineration power plants and can achieve the following goals: 1. Increased incineration efficiency; 2. Reduce the amount of garbage disposal; 3. Reduce the amount of waste gas generated.
The separated ferromagnetic materials (about 0.87%) can be sent directly to the waste collection station for recycling.

3.3.5 Harmless landfill for non-recyclables
The non-recyclable inorganic materials (about 7.15%), such as cement, bricks, ceramics, etc., that have been selected can be disposed of in a non-hazardous manner.

3.3.6 Plant Liquid Spray Deodorization System
The project adopts the remote defoaming, intelligent automatic control, automatic deodorizing method of natural plant deodorant nozzle atomization in the tank, and the spray pipe and atomizing nozzle are designed and arranged on the top of the temporary storage pit to prevent the odor of heavy density as much as possible. The gas diffuses into the external space and ensures that the spray pipe will not suffer pressure loss or break during the operation of the system. Maintenance and maintenance will not be dangerous in the future.

3.3.7 Automatic Control System
The system requires a high level of automation control, can be achieved in the central control room through the computer monitoring system to achieve the feed control system, sorting control system, drying control system, batching control system, in conjunction with a small number of local meters and touring inspection. Central monitoring and control of other necessary control systems.

Fourth, technical advantages
1. High sorting efficiency:
The use of a fully-enclosed mechanized sorting system eliminates manual sorting. The sorting efficiency is as high as 85% or more, and the classification is thorough, laying the foundation for subsequent treatment processes.
2. High resource utilization rate:
The ecological organic fertilizer produced by high temperature and high pressure treatment of organic matter has the advantages of high efficiency (4 hours of fertilizer output), high total nutrient content (up to 5%), no odor, asepsis, no eggs, etc.;
Sorted out waste plastics made of wood-plastic plate, can replace wood, can be sawed, planed, no insects, corrosion-resistant, non-absorbent, non-toxic harmless, green and formaldehyde-free, save forest resources, control the white pollution ;
The high calorific value of the sorted combustibles (3000 kcal) and low moisture content increase the efficiency of incineration, reduce waste incineration and waste gas generation.
3. High reduction and harmlessness:
After strictly sorting domestic garbage, only 4.5% of them (determined according to garbage components) need to be landfilled in a detoxified manner, which greatly saves land resources and reduces landfill leakage caused by landfill leachate. harm.
4, high processing efficiency:
The technology has the advantage of rapidity. It can process the same-day rubbish on the same day to realize the daily production of Nissan, improve the efficiency of garbage disposal, and reduce the odor problems caused by garbage dumping.