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moving step grate biomass boiler

Trends of biomass CFB moving step grate biomass boiler

Biomass CFB boiler current trends from low parameter gradually to the high parameters of development, from the initial medium temperature and pressure parameters to a medium temperature high-pressure, to high temperature and pressure parameters, even Wuhan Kaidi Electric Power's biomass power plant began to use with independent intellectual high pressure high temperature property CFB combustion technology. The purpose of the development of high parameters to improve the thermal efficiency of the boiler.

Each moving step grate biomass boiler will generate 250 tons/hour of low-pressure steam for the alumina refinery; however, the design allows for conversion to high-pressure steam generation for the future addition of a steam turbine for electricity generation.Coal or biomass will be the primary and backup fuels, respectively.

Recently, Shanxi Province issued a notice "Shanxi win the Battle of Blue Sky 2019 action plan" for the atmospheric environment management direction, the total annual target put forward concrete implementation of the program, as follows.

1, to promote the boiler depth treatment. October 1, 2019, with the province and more than 65 tons of steam coal-fired boilers and located in built-up areas of cities and counties in coal-fired heating boilers, biomass boilers to complete a full ultra-low emissions transformation. Actively promote the orderly transformation of gas boiler low NOx combustion. 2019, the province completed 232 sets of 19060 tons of steam boiler low nitrogen gas Combustion Technology, 40 407 tons of steam boilers ultra-low emission biomass transformation, 907 sets of 4160 tons of steam boiler low NOx combustion gas transformation.

2, continue to carry out special treatment industrial furnaces. The inclusion of 2018 --2019 autumn and winter ban out of the scope of the comprehensive management of air pollution crucial action of industrial furnaces (coal-fired stove in key areas and non-ferrous industry, coal-fired kilns, coal-fired reverberatory furnace, coal-fired lead melting pot and lead electric boiler, coal-fired heating in the cogeneration heating pipe network coverage, kiln drying, etc.) to conduct a comprehensive clean-up, to ensure the elimination ban in place. Expected annual industrial furnaces out of 147 units, industrial furnace-depth treatment of 629 units.

3, vigorously promote clean winter heating. Full use of the complete transformation of the ultra-low emission cogeneration units and large central heating boiler, cogeneration and district heating based, coal to electricity, coal gas and other clean energy sources, supplemented priority to the township as a unit, take piece together the transformation of the way, instead of living and bulk coal for heating.

4, strengthen management and control bulk coal, municipal or county government to promptly clean heating has been completed the transformation of the area designated as a "ban on coal zone" prohibiting bulk coal entering, to prevent the resurgence of loose coal; energy management department should be organized to make clean coal supply protection; market supervision and management departments to increase coal quality sampling, civil bulk coal company coal sales monthly sampling coverage to more than 10%, the annual sampling coverage to 100%.

5, the implementation of total coal consumption control. Optimize the use of coal structure, non-power coal in 2019 substantially reduced compared to last year, accounting for the province to improve coal for power generation coal consumption ratio.

7, shutting down out of substandard small coal-fired units. In the case with cogeneration heating conditions, shutting down the integration of 300,000 kilowatts and heating in the range of 15 kilometers radius of more coal-fired heating boilers and coal-fired units is not up to the small thermal power generating units. In 2019 the province out of 300,000 kilowatts or less is not up to five coal-fired units, 1.02 million kilowatts.

China's industrial gas moving step grate biomass boiler energy-saving technology path outlined China's industrial gas boiler energy-saving technology is the common path of the following two: A phase-out of scattered small boilers, combined heat and power generating switch to district heating. B. of 2-10 tons and even more part of the coal-fired boiler of natural gas, clean energy transformation of raw materials, electricity and so on. The ultimate goal of both techniques were replaced by new energy path for coal, combined with lower energy consumption part of the measures to local conditions when due. Where coal to electricity in the current case by the subsidies countries will be relatively large, relatively rich in power resources area, consider rack power grid, conducted to electricity coal boilers boiler, doing so on the one hand can reduce not meet the on provisions small boiler operation resulting energy waste, on the other hand can reduce the emissions of nitrogen oxide and the like, can be said to have the advantage of its presence; as coal gas, is commonly used as a transformation method, gas boiler with a clean and environmentally friendly features, thermal efficiency than coal-fired boiler has a huge advantage, and security is relatively high, in principle, the cost will naturally be much higher than the cost of coal, but with the current low nitrogen condensation technology increasingly the more advanced, gas-fired boiler in large cost savings in the process of running, it is a comprehensive and long-term benefits of view, but also more cost effective. Of course, the industry also has a coal boiler biomass transformation, it would be a transformation of the way local conditions, as to the effectiveness of the transformation, will have to analyze the actual operating efficiency and operating costs. In short path technology transformation of the industrial gas boiler has a lot, which is more suitable for the specific nature of the measure should be based on the actual situation, customer needs, requirements and standards of other countries, no matter how change, in terms of industrial processes want nothing more than lower energy consumption, reduce costs, reduce emissions, improve the efficiency.