Study On Application Of Power Generation Technology By The Comprehensive Utilization Of Coal Slime In Huangling Mining Area

Due to slime unable scientific and reasonable treatment and affect the normal production work, slime accumulation of severe damage to the surrounding ecological environment, increase the slime treatment costs in Huangling mining companies.This paper solves the slime water, ash high, fine particles, viscosity, water holding capacity, strong cohesion, hard to transport, it is difficult to realize industrial application, serious impact on environmental issues. Through the study of coal blending technology, find the way to handle the peat.This paper study on the law of the rheological characteristics of coal slurry based oncalculation formula, the slime viscosity is obtained. The coal gangue power plant large proportion of key technology of burning slime, the slime top feeding way is determined. Using "softlanding+watercooling wall reducer pipe+anti-wear structure based anti abrasion protection plate" and then use the spraying wear-resistant alloy material,and adding anti abrasion beam method solves the wear problem of Huangling water wall of power plant. Through the test of slime conveying pipeline, determined the slime conveyingprocess, and draw the system block diagram of slime pipeline transportation,obtained the size equation, slime constitutive equation, the frictional resistanceequation and empirical formula, and the establishment of the slime conveying index system, the design of a fuzzy program slime preparation control system structure and coal moisture control. Then studied the Huangling power plant slime blending of key technologies, and determine the main equipment selection of slime power generation system and the main technical indicators, the whole system equipment selection to meet the practical requirements of production.Through the analysis of the Huangling mining coal gangue and boiler operation mode of power generation companies, and the running process of slime systemsolutions, affect the safe operation of the boiler is proposed to determine the slime after the operation, operation process of slime system, put forward suggestion ofslime running sound solution to the safe operation of the boiler. This technology is successfully applied in Huangling mining coal gangue power generation company, circulating fluidized bed boiler burning coal slime appeared inhigh blending ratio after the most prominent will eliminate the wear problem, which greatly improves the running cycle of circulating fluidized bed boiler, realize the industrialization application of slime, obtained good economic benefit and social benefit. The technology also has a very broad application prospects in dealing with othersticky solid waste.