• Municipal Solid Waste Incineration To Power
  • Municipal Solid Waste Incineration To Power
  • Municipal Solid Waste Incineration To Power
Municipal Solid Waste Incineration To Power

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Municipal solid waste incineration power generation core equipment is waste incinerator, waste incineration power generation of municipal solid waste, incineration of electricity in addition to 13 ℅ for their own use, the rest can be incorporated into the grid for enterprises to create economic benefits and reduce the burden on the government. The development of urban waste thermal power station and the number of urban population also has a certain relationship, because the main power plant is continuous,which need to have enough quantity of waste to ensure continuous operation. At the same time, considering the quantity and quality of waste will vary with the seasons. According to the urban population, the average amount of garbage per person per day is about 1 kg (slightly more developed countries), the urban population is more than 1 million, the daily production of urban waste in more than 1,000 tons, you can ensure stable power generation. Generally believed that when the heat value of garbage is greater than 3349kJ / kg, you can burn by natural means. The content of organic matter in municipal solid waste in the area of ​​burning gas is quite high, generally over 50%, and high above 80%. A large number of organic waste is valuable resource, it can extract useful substances, is the main combustible components in the garbage.

Municipal solid waste incineration power generation is using of incinerators in the combustible materials in the garbage incineration, high temperature incineration after the elimination of a large number of garbage in the harmful substances, to harmless, reduction of the purpose, while the use of recycled heat Heating, power supply, to resource-based.

Garbage is a waste heat boiler thermal power station equipment, is also the key to the development of waste thermal power station. As the garbage is a certain corrosive fuel, water, calorific value of unstable waste, and thus the garbage boiler and its combustion equipment in the design of its certain specificity. As the waste heat value is low, and the moisture content is high, therefore, the performance of the combustion equipment is the key to the garbage boiler.

Comprehensive utilization technology of waste incineration to power

1.A garbage-feeding device

Domestic waste is not classified, and sorting,crushing equipment is complex, and poor reliability.So it can not go abroad vertical rotary pyrolysis gasification equipment incinerator to crush the garbage to a certain size (such as 1 ~ 10mm) route.It must be developed to the original garbage (although it may contain wood, metal and masonry and other irregular objects) into the furnace feed device smoothly, Qing-fen learn from decades of coal combustion technology research and engineering experience and engineering Comparison of the domestic and foreign devices, research, selection of grate input, vertical rotary pyrolysis gasification equipment combustion, successfully solved this problem.

2.Vertical rotary pyrolysis gasification equipment Waste incineration technology Vertical rotary pyrolysis gasification equipment Combustion technology is specifically for the development of low calorific value fuel, vertical rotary pyrolysis gasification equipment burning low calorific value of garbage has a higher Efficiency, combustion efficiency can be as high as 95% or more, but also insensitive to changes in fuel composition: calorific value is insufficient to maintain heat balance into the auxiliary fuel (coal) combustion. By experiment, the adequacy and reliability of incineration has been solved, and the emission of harmful gases from the vertical rotary pyrolysis gasification equipment is less than that of other incineration methods because of its unique combustion mode. Tsinghua University, the theoretical and experimental study of the mechanism of waste incineration has been designed to provide the necessary design basis.

3.Vertical rotary pyrolysis gasification equipment bed slagging technology

As the garbage composition and shape of complex, large particles of ash particles, the shape is not the same, different sub-vertical rotary pyrolysis gasification equipment discharge conditions, the need to adopt a special slagging technology. Tsinghua University through research, the use of bed orientation slagging technology can solve the problem of slagging.

4.The heating surface corrosion technology waste incineration because of its original composition contains a lot of plastic, will have a strong corrosion of HC1: To reduce nitrogen oxide formation, the need for staged combustion, the furnace to form a reducing atmosphere. High temperature corrosion in the reduction zone should be investigated. This technology is under study.

5.Contaminant removal technology

In general,using vertical rotary pyrolysis gasification equipment can be achieved in the furnace desulfurization,in addition to HCI,etc., and effectively reduce the nitrogen oxide Nox formation. In order to economically and effectively control the discharge of pollutants, the generation mechanism of pollutants should be studied and a reliable technology for the removal of pollutants should be developed. At present, Tsinghua University has a practical furnace desulfurization, in addition to HCI technology, the removal of other pollutants are under study. According to Tsinghua University has 10 tons of garbage on the thermal test device on the results of the test, HCL <50ppm, NOX <500ppm, S0X <1500ppm, are lower than the national emission standards. As a result of the use of vertical rotary pyrolysis gasification equipment incineration technology, organic matter fully burned, almost no dioxin, furan emissions.

6.Ash comprehensive utilization technology

The ash from the vertical rotary pyrolysis gasification equipment is removed by magnetic separation, and then it can be simply crushed. It can become one of the raw materials of cement and brick. If necessary, the ash composition, characteristics and Other raw materials to study the ratio.

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