System for achieving mixed combustion with refuse derived fuel in pulverized coal boiler and operation method thereof

Abstract

The invention discloses a system for achieving mixed combustion with refuse derived fuel in a pulverized coal boiler. The system for achieving mixed combustion with the refuse derived fuel in the pulverized coal boiler comprises a refuse derived fuel pretreatment system, a refuse derived fuel finished product storage pit, a belt conveyor A, a refuse derived fuel transferring device, the pulverized coal boiler and an air heating system, wherein the refuse derived fuel pretreatment system is connected with the refuse derived fuel finished product storage pit, the refuse derived fuel finished product storage pit is connected with the refuse derived fuel transferring device through the belt conveyor A, the refuse derived fuel transferring device is connected with the pulverized coal boiler, and the air heating system is connected with the refuse derived fuel transferring device. Meanwhile, the invention further discloses an operation method of the system for achieving mixed combustion with the refuse derived fuel in the pulverized coal boiler. According to the system for achieving mixed combustion with the refuse derived fuel in the pulverized coal boiler and the operation method thereof, upgrading and transforming are conducted on an existing waste incineration unit, the structure is simple and reasonable, the hearth temperature can reach 1200 DEG C or above, dioxin can be completely decomposed, and ultralow emission of pollutants can be achieved; the Not-In-My-Back-Yard effect is reduced, and the livelihood environment is improved; and the investment for newly establishing a waste incineration plant is greatly reduced.

Description

technical field [0001] The invention relates to a pulverized coal boiler mixed-burning garbage-derived fuel system and an operation method thereof, belonging to the technical field of solid waste treatment. Background technique [0002] With the rapid development of my country's social economy, the acceleration of urbanization and the rapid improvement of people's living standards, the garbage generated in the process of urban production and life has also increased rapidly. Domestic garbage occupies land, pollutes the environment, and affects people's health. effect is also more pronounced. The massive increase of municipal solid waste makes it more and more difficult to dispose of waste. The resulting environmental pollution and other issues have gradually attracted widespread attention from all walks of life. Therefore, it is necessary to seek waste resource utilization technologies suitable for national conditions. Most large cities in my country have built various types ...

AI Technical Summary

Problems solved by technology

Some small and medium-sized cities are still dominated by landfill, and the phenomenon of "garbage siege" is quite serious, which greatly affects people's living environment, and even poses a threat to people's health and increases the risk of disease

[0003] The existing traditional waste incineration adopts grate furnace or circulating fluidized bed waste incinerator, but the furnace temperature of grate furnace and circulating fluidized bed waste incinerator is low, and it is impossible to completely remove the dioxins generated during the process of waste incineration

At the same time, the "NIMBY effect" of newly built waste incineration power plants is prominent, and it is difficult to select sites for waste incineration power plants

Images