1.空气压力雾化悬浮燃烧原理
水煤浆与空气经燃烧器以射流方式进入炉膛，促使煤浆气流与炽热烟气产生强烈混合，水分迅速蒸发；同时水煤浆气流又受到炉膛四壁和高温火焰的辐射。而将悬浮在气流中的煤颗粒迅速加热，水煤浆颗粒获得了足够的热量并达到了一定的温度就开始着火燃烧。其着火热随燃料的性质和运行工况的变化而变化，锅炉负荷低时，炉膛平均烟温降低，燃烧器区域的烟温也将降低。所以雾化燃烧固态排渣水煤浆锅炉比较低运行负荷在50%左右。
2.流化悬浮高效洁净燃烧技术原理
将滴状水煤浆投入燃烧室下部由石英砂和石灰石构成床料的炽热流化床中，其温度在850—950℃左右。水煤浆在炽热的流化床料的加热下迅速完成水分析出，挥发分析出并着火燃烧及焦碳燃烧过程。在流化状态下颗粒状水煤浆团进一步解体为细颗粒被热烟气带出密相区进入悬浮室继续燃烧。在燃烧室出口设有分离回输装置。被热烟气带出的媒体物料和较大的水煤浆颗粒团被分离器分离、捕捉，通过分离器下部设置的回输通道返回燃烧室下部密相区，既减少了媒体物料的损失，又实现了水煤浆颗粒团的循环燃烧，从而获得高的燃烧效率。此外，低温燃烧过程，有效的控制了热力型NOx的形成。且由于媒体物料由石英砂与石灰石构成，石灰石在高温下煅烧生成CaO，CaO与SO2反应进一步生成CaSO4，抑制了SO2的排放，而燃烧装置的运行温度是CaO脱硫的良好运行温度，可有效的减少SO2的排放。
中译英：
1 Air pressure atomization suspension combustion principle
Coal water slurry with air through a burner to jet into the furnace, make coal slurry flow and the hot gases produced strong mixing, rapid evaporation of water; at the same time, coal water slurry flow by furnace walls and the high temperature flame radiation. While suspended in the air in the coal particles are rapidly heated, water coal slurry particles obtained sufficient heat and reaches a certain temperature started burning. Its hot with the fuel properties and operating conditions change, the boiler load is low, the average gas temperature decrease, the burner zone will also reduce the flue gas temperature. Therefore, atomization and combustion for solid slag discharging water coal slurry boiler minimum load in 50% or so.
2 Fluidization suspension combustion technology is high efficiency and clean
The drip water coal slurry into the combustion chamber is composed of quartz sand and limestone bed material in fluidized bed of hot, the temperature at 850- 950 ℃. Coal water slurry in the hot fluidized bed material under the heating rapid completion of water precipitation, devolatilization and combustion and coke combustion process. In a state of fluidization granular coal water slurry has further disintegrated into fine particles are the hot flue gas out of the dense phase zone into suspension chamber to burn. In the combustion chamber outlet is provided with a separation of transfusion device. Is the hot flue gas out of media materials and large coal water slurry particle group is separated, capture, through the separator is arranged at the lower part of the back channel returns to the combustion chamber lower dense phase zone, both to reduce the media material loss, but also realize the coal water slurry particle group from circulating combustion, while achieving high combustion efficiency. In addition, low temperature combustion process, effective control of thermal NOx formation. And because the media material from Shi Yingsha and limestone, limestone is calcined at high temperature to generate CaO, CaO and SO2 reaction further generates CaSO4, inhibition of SO2emission and combustion device, the operating temperature is CaO desulfurization optimum operation temperature, can effectively reduce the emission of SO2.
(图/文http://www.jnjrl.com/)
