The paper presents the results of comparing the integral characteristics of ignition and combustion of coal and composite fuels, prepared from coal processing waste in a dry and wet state, in a model combustion chamber. We calculated the relative fuel performance coefficients, taking into account the established ignition delay times, fuel burnout duration, concentrations of gaseous anthropogenic emissions, as well as temperature changes (reduction at the initial stage and growth during rapid combustion) in the model combustion chamber. It was shown that the ignition delay times of coal processing waste in a dry state are 30–70% lower than in the initial wet state. However, burning wet coal processing waste provides the lowest concentrations of NO_x and SO₂ (5–44% lower than in a dry state and 35–70% lower than they are for coal). Considering the main environmental, economic and energy performance indicators, optimal conditions were established for the combustion of abundant coal processing waste as part of water-containing slurry fuels. It was established that the relative performance coefficient of slurry fuels ranges from 2.05 to 58.87 when varying the moisture content and component composition. This coefficient is maximum for wet filter cake without oil. This allowed us to conclude that wet coal processing waste is highly promising.

本文介绍了在模型燃烧室中比较由干和湿状态下的煤炭加工废料制备的煤炭和复合燃料的点火和燃烧的整体特性的结果。我们考虑了确定的点火延迟时间，燃料燃尽持续时间，气态人为排放物的浓度以及模型燃烧室中的温度变化（初始阶段的降低和快速燃烧过程中的增长），计算了相对燃料性能系数。结果表明，干燥状态下的煤处理废物的点火延迟时间比初始潮湿状态下的降低了30-70％。但是，燃烧湿煤加工废料可提供最低的NO _x和SO ₂浓度。（比干燥状态低5–44％，比煤炭低35–70％）。考虑到主要的环境，经济和能源绩效指标，为燃烧丰富的煤炭加工废料作为含水浆状燃料的一部分建立了最佳条件。已经确定，当改变水分含量和组分组成时，浆料燃料的相对性能系数在2.05至58.87的范围内。对于没有油的湿滤饼，该系数最大。这使我们得出结论，湿煤加工废料非常有前途。