The status of solid waste disposal equipment in the context of dual carbon

The development direction of urban solid waste disposal is closely related to current policies. The implementation of the "Dual Carbon Strategy" plan has given urban solid waste a new development direction. This development direction is more accurately said to be a structural change in the final destination of materials. Variety. Of course, for manufacturers of urban solid waste disposal equipment like us, the pretreatment process has not changed much.

In the past two years, what we have most encountered is the use of municipal solid waste as fuel, which is called "alternative fuel preparation technology" in the industry. The development of this technology is actually more derived from the domestic waste pretreatment process. After the conversion of municipal solid waste disposal from landfill to incineration, the furnace types in the incineration field are different, and the requirements for domestic waste are also different. For circulating fluidized beds, domestic waste requires a process of fine crushing and impurity removal. Most of this pretreatment consists of coarse crusher, iron remover, secondary crusher, drum screening/star disk screen, air separator, fine crusher and other related equipment.

Let’s look at the current “alternative fuel” requirements for equipment manufacturing from the above. Combined with the back-end reception of “big” cement plants, they are used to replace coal in precalciner kilns. There are two basic requirements for materials, one is material size ≤ 100mm, and the other is material moisture content. Of course, the most critical materials remaining after impurity removal are flammable. For these two basic conditions, we combine the material composition. In fact, the process is closely related to the pretreatment of domestic waste. For clean and simple materials, there is no impurity removal and moisture removal process, only coarse and fine crushing is left. For those with more impurities, there are more intermediate crushing and screening links.

Taken together, in the entire dual-carbon background, everyone does not need to worry too much about the choice of equipment and technology. The equipment is mature and reliable, and the technology has been verified by relevant practices. What most owners consider may be the strength, technical level and serviceability of the equipment manufacturing company for the project.