Difficulty in cracking and handling, standardized management, and equipment upgrades

Large pieces of garbage have a large volume and strong integrity, and cannot be compressed at transfer stations. They need to be separated and transported to waste incineration power plants or landfills for treatment. To better turn large waste into treasure, it is urgent to develop the recycling and disposal towards standardization and specialization.

At present, many regions have built large waste disposal centers. For example, a certain town in a certain district of Shanghai has built the largest large waste resource disposal station in Shanghai, with a construction area of 4960 square meters and a maximum daily processing capacity of 150 tons. The sorting center officially started production and operation in November 2018, with a daily processing capacity of about 50 tons. The large pieces of garbage transported need to be disassembled, leaving behind wooden waste, which is then sent to the crusher for two crushing. The generated wood chips are then fed into the extrusion granulator to form into 4 to 5 cm combustion rods, and the entire process from crushing to forming takes less than 10 minutes. The fuel rods generated are provided to the boiler plant as fuel, with high calorific value, stable combustion, low pollution, easy storage and transportation, and achieving the resource utilization of wooden waste.

At a large waste disposal center in a city in Sichuan Province, there are temporary storage points for waste furniture, temporary storage points for waste mattresses, and manual disassembly areas. The large pieces of garbage entering the disposal center are manually classified and stacked by workers based on their volume, complexity of construction, and difficulty of disassembly. According to the treatment needs, Deyang City has also purchased a specialized waste disposal production line and developed a relatively efficient treatment process. The production line integrates mechanical, electrical, hydraulic, and intelligent technologies, mainly composed of chain conveyor, double axis shear crusher, dust reduction system, intelligent control system, etc. A closed design is adopted in the crushing and feeding area, with a dust removal cover installed. The dust removal is carried out using a filter plate filtration method for dust reduction treatment. In addition, the production line adopts PLC (programming logic controller) automation control, strengthening the "integration of control and management", achieving early prediction and automatic alarm of equipment faults, effectively reducing fault rates, improving production continuity, and reducing maintenance costs; Standardize the management and control of large waste disposal processes by using digital monitoring of production lines and synchronous monitoring of the factory area, and synchronously monitor the feeding, crushing, unloading, and safety of the factory area. Unlike traditional large waste disposal sites that require manual operation, vigorous dismantling, and a face full of dust, the workshop only needs 4 personnel to meet the needs of dismantling and sorting, with obvious advantages in efficiency, energy conservation, safety, and environmental protection.

In a certain county of Pingxiang City, Jiangxi Province, large pieces of garbage are collected and transported by the environmental sanitation company to the garbage transfer station for crushing, and then directly input into the garbage compression box. They can then be transported to the garbage incineration power plant for incineration and power generation. The advantage of direct crushing at the garbage transfer station is that it can reduce secondary handling.