chain grate coal boiler

China's energy revolution continues in depth. According to the director of the National Energy Regulatory Agency, Mr. Li Ye provided by the 2018 annual generating capacity of 6.8 trillion kwh of nuclear power, hydropower, wind power, solar energy and other non-fossil energy accounted for about 30%.

In total energy consumption of 4.62 billion tons of standard coal, a non-fossil energy accounted for 14.3%. Li Ye said the 2020 schedule is expected to achieve a 15% share of the consumer target. Coal in primary energy consumption is first reduced to 60%.

According to local NPC and CPPCC news recently held a show in 2019, and more through the sky to defend the war, to production capacity and other strategies, from industrial, civil and other aspects, to further reduce coal consumption, increase the use of natural gas, solar, wind power and other energy varieties . "Minus coal" has become an important theme in 2019 to promote local energy reform.

By contrast, natural gas production has improved throughout the year, an increase of 7.5% last year, to reach 161 billion cubic meters; imported 90.39 million tons, an increase of 31.9%, increase speed to accelerate to 5%.

At the same time, optimize the structure of power, nuclear power, wind power, solar power double-digit growth, increased by 18.7% over the previous year, 16.6% and 19.6%.

Outside central planning, where two sessions news shows, Beijing, Tianjin, Hebei, Liaoning, Heilongjiang, Hubei, Henan, Anhui, Fujian, Sichuan, Xinjiang and other provinces (cities, districts) made from the resolve of coal production capacity, exit behind coal units , clean heating, natural gas pipeline network construction of related facilities, the development of various aspects of clean energy such as power production, transportation and consumption, promote energy revolution.

Beijing, Tianjin, Hebei, Henan, Anhui and other places, our total coal consumption has been identified as key areas of control. Of the total coal consumption in 2018 before four regions decreased by 10% compared with 2015, down 5% in Anhui Yangtze River Delta region is located.

Beijing: According to the statistics show that in 2018, Beijing completed 450 village "coal to clean energy", the basic Plains Coal-free, high-quality clean energy accounted for more than 96%, the basic bid farewell to coal pollution. To prevent this complex burning coal for a rebound, no coal rank consolidate control results.

Tianjin: 2018, Tianjin has also ushered in the $ 18 billion Three Gorges Group offshore wind projects, the completion of coal to electricity, gas and central heating coal to build up a total of 238,000. 2019 will promote low-nitrogen transformation and construction work clean diesel transformation of mechanical gas-fired boilers, in an orderly urban and rural residents clean alternative to coal for heating.

Hebei: 2018, Hebei Yajian completed 14.01 million tons of coal, thermal power 550,000 kilowatts; 2019 will continue to promote coal reduction mission, planned Yajian 10 million tons of coal, 500,000 kilowatts of thermal power, continue to implement the clean winter heating engineering.

Henan: Henan last year to resolve the coal production capacity 8.25 million tons, the elimination of backward coal units 1.077 million kilowatts. This year plans to phase out coal units behind the transformation of about 1.5 million kilowatts, the main city of Zhengzhou City, to promote coal units cleared and the main city of Luoyang coal units basically cleared to accelerate the development of clean power, new renewable energy power generation installed capacity of 1.8 million kilowatts .

Henan Province is the only one mentioned in clean energy consumptive province, 2019 will continue to promote energy outside the lead channel construction, the province interoperability, optimizing the energy structure and layout. Comprehensively promote green electricity into the Henan construction, improve the ability to absorb foreign clean.

Qinghai: According to preliminary statistics, director of State Grid Energy Research Institute, the Institute for New Energy and statistics, in 2018 the scope of the province supporting the new energy transport grid construction, new energy sources to enhance the delivery capacity of 3.5 million kilowatts. Qinghai photovoltaic power generation efficiency of over 95%.

Anhui: Anhui Province last year to exit the coal production capacity 6.9 million tons, the new renewable energy power generation installed capacity of 3.05 million kilowatts; energy-saving plan to complete the upgrading of more than 1.26 million kilowatts coal units this year, to promote the reduction of coal consumption alternative, withdraw excess coal production capacity of 1.65 million Ton.

Sichuan: The hydroelectric province, the focus of China's largest clean energy base in Sichuan in the "alternative energy", will accelerate this year to enhance the level of electrification, transforming the province's abundant clean energy advantages into development advantages; to focus on deepening the reform of power factor markets reform, construction of hydropower absorptive industries demonstration zone, the development of large data, electrolytic hydrogen and other green energy carrier industry.

Fujian: Fujian will accelerate to promote nuclear power, pumped storage, LNG receiving station, natural gas pipeline network and other major energy projects, for new annual installed capacity of more than 2 million kilowatts of power; perfect system of paid use of environmental resources by energy rights.

Deputy director of the Energy Development Center edify the National Energy Renewable represent the future of green certificates market will be issued towards the expansion of the scope of the certificate, the adjustment period, transactions, etc. due to the quota should be monitoring and evaluating mechanisms obligations, non-hydro renewable energy, expand trading partners development direction.

Chemical plant chain grate coal boiler combustion efficiency improvement measures which are not high chemical plant boiler combustion efficiency is not high improvement measures what? The low-temperature exhaust gas boiler combustion efficiency test, a higher excess air ratio, suggestions for improvement higher problems: 1, the excess air ratio due to lower general, industrial boilers was 1.4. Due to the different internal structure of each of the boilers, excess air coefficient can be adjusted according to the actual operation, there are sufficient coke burn time in the boiler. Additionally, secondary air may be suitably provided, coke sufficient oxygen for complete combustion, reducing the incomplete loss of solids. 2, due to lower exhaust gas temperature of the boiler exhaust gas temperature account for a large proportion of the boiler heat loss, so the loss of the boiler must be minimized. In one aspect, the dew point should be to prevent corrosion; the other hand, the exhaust gas temperature is not so high. 3, to improve the uniform distribution of air to the boiler furnace combustion efficiency, so as not to cause incomplete combustion of the coal formation dead. As the pilot were grate boiler, the moving speed of the chain should be controlled within a reasonable range of coal on the grate have enough time to complete combustion, but not too long so as not to waste grate. In addition, high-volatile coal, the coal should be possible to improve the quality, to shorten the combustion time, reduce the loss of solids of incomplete combustion.

1, compared to the traditional coal-fired chain grate coal boiler, gas boiler higher cost low nitrogen

Conventional coal-fired boilers is generally filled manually directly into the coal combustion furnace, this method results in very large combustion sulfide, soot and other harmful substances discharged into the atmosphere pollution index high; but also need to manually plus fuel, time-consuming and labor-intensive, more harm than good.

CFB chain grate coal boiler is a new technology in boiler research,CFB boiler have strong adaptability in fuel choice.Coal,oil,gas and biomass all of these can be used in CFB boiler as furl.But among this biomass is the most energy saving and environmental friendly fuel.

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