In this method of combustion, coal fuel is burned in a bed of hot inert, or incombustible, particles suspended by an upward flow of combustion air that is injected from the bottom of the combustor to keep the bed in a floating or “fluidized” state. The scrubbing action of the bed material on the coal fuels enhances the combustion process by stripping away the CO2 and solids residue (char) that normally forms around the coal fuels particles. This process allows oxygen to reach the combustible material more readily and increases the rate and efficiency of the combustion process. One advantage of mixing in the fluidized bed is that it allows a more compact design than in conventional water tube boiler designs. Natural gas or oil fuel can also be used as a start-up fuel to preheat the coal fired steam fluidized bed or as an auxiliary fuel when additional heat is required. Beside, the effective mixing of the bed makes fluidized bed boilers well-suited to burn solid refuse, wood waste, waste coals, and other non standard fuels. The fluidized bed combustion process provides a means for efficiently mixing fuel with air for combustion. When coal fuel is introduced to the bed, it is quickly heated above its ignition temperature, ignites, and becomes part of the burning mass. The flow of air and fuel to the dense bed is controlled so that the desired amount of heat is released to the furnace section on a continuous basis.
To effectively and efficiently solve air quality problems, further improve people's quality of ambient air, Luliang city government issued the "Luliang city and surrounding tackling air pollution control action plan."
Luliang within the range of 1300 square kilometers around the city, "an area three counties' area under the jurisdiction of section: Lishi District, Riverside street nine township (town, street) a total of 54 villages; Luo Zhongyang County town of 12 gold villages; Liulin County, Lee Wan total of four villages; Fangshan County Dawu town a total of 11 villages.
1, the effective promotion of clean heating. Implementation of the "Clean Luliang city in northern winter heating pilot cities embodiments (2018-2020 years)" to determine the progress of the task, 2018-2019 before the end of September totaled clean heating transformation of rural areas 90000 (including within the scope of "no coal zone" rural households), where: Lishi District, 20000, 15000 Fangshan County, Zhongyang County 15000, 40000 Liulin County.
2, bulk coal coal strengthen supervision. Downtown "ban on coal zone" expanded to 88 square kilometers, the Willows, in the sun "and ban on coal zone" for the county built-up areas and the surrounding area 5 km, Fang Shan range "ban on coal zone" for the built-up area region, 2019 August 31, coal stoves and coal "double clear" within the scope of "no coal zone" implementation. "No coal zone" outside the prohibited than 1% sulfur, 16% ash content than coal for civilian. Determine civil bulk coal sales to crack down on low-quality coal sales practices.
3, to carry out comprehensive improvement of the boiler. 2019 August 31, all workers in the region (companies) industry, commerce, services, basic administrative units out of 10 steam tons / hour and coal-fired boilers, combustion zone ban (ban on coal zone) all residents within the range, all the villagers self-built coal-fired boilers out of the cell. Not "ban on coal zone" to be able to ensure clean winter heating, self-built coal-fired boilers shall be eliminated; it is difficult to ensure clean winter heating, self-built coal-fired boilers Always use clean coal substitute. And more than 65 tons of steam coal-fired boilers to complete the transformation of energy-saving and ultra-low emissions, low nitrogen gas boiler basically completed the transformation, to achieve ultra-low emissions coal-fired power plants. 35-65 tons of steam coal-fired boilers and more particularly to achieve stable discharge standards; co-firing biomass boilers ban coal and other fuels, efficient dust bags and other ancillary facilities. Non-alcohol-based fuels to burn in the name of blended chemical waste.
SZL biomass fired steam Boiler are available for many fuels including wood , bagasse, coal, mustard stalk, cotton stalk, rice husk, coffee grounds, de-oiled bran. ZG SZL biomass fired steam Boilers are designed and manufactured with advanced technology.A a single biomass fired steam Boilers supplier, ZG always not only provides the optimize proposals, optimal products ,but also best boiler price.
Considering with money and environment benefits, our sales soon sent the quotation of DZL series 4 TPH Rice Husk Fired Steam Boiler to him. This is a kind of packaged single drum chain grate boiler. Here, as our client requirements, this 4 TPH high standard wood fired steam boiler for sale, burnt rice husk as fuel. Actually, our DZL series chain grate boiler also can burn coal fuel, bagasses, palm shell, wood pellet, those biomass fuels. Based on our experience, mixed biomass and coal fuels into boiler chamber, can reach higher thermal efficiency than only burnt rice husk fuel.
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