Pulverizing coal and sludge co-combustion environment-friendly power generation system provided with fan mill and air swept mill

Abstract

The invention discloses a pulverizing coal and sludge co-combustion environment-friendly power generation system provided with a fan mill and an air swept mill. The system comprises a boiler, the air swept mill, a closed sludge bin, the fan mill, a drying pipe, a gas-powder separator, a water recycling device, a powder discharge fan, an exhaust fan, a second powder feeder and a second air powder mixing device. The closed sludge bin is connected with a feed inlet of the drying pipe, a discharge opening of the drying pipe is connected with a feed inlet of the gas-powder separator through the fan mill, an exhaust outlet of the gas-powder separator is connected with the air inlet of the second air powder mixing device sequentially through the water recycling device and the exhaust fan, a powder outlet of the gas-powder separator is connected with a powder inlet of the second air powder mixing device through the second powder feeder, and the second air powder mixing device is further connected with a burner of the boiler. The system achieves organic combination of coal-fired power generation, sludge drying, sludge incineration, pollutant integrated removal, coal slag utilization and steam turbine cold end waste heat utilization, and the coal and sludge hybrid power generation system has the functions of being efficient, saving energy and being economical and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of power generation, and in particular relates to the coal and sludge co-firing power generation technology. Background technique [0002] Comrade Xi Jinping pointed out that energy security is an overall and strategic issue related to the country's economic and social development, and is crucial to the prosperity and development of the country, the improvement of people's lives, and the long-term stability of society. In the face of new changes in the energy supply and demand pattern and new trends in international energy development, to ensure national energy security, we must promote the revolution in energy production and consumption. Promoting the revolution in energy production and consumption is a long-term strategy, and we must start now and accelerate the implementation of key tasks and major initiatives. Promote energy technology revolution and promote industrial upgrading. Based on my country's ...

AI Technical Summary

Problems solved by technology

The main problems in sludge incineration are high energy consumption for sludge drying, complex system, and small amount of sludge incineration, which cannot fully meet the needs of urban sludge disposal.

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