Study Of New Technique For Plasma Igniting Coal-fired In Rotary Kiln

Currently, a wide range of plasma ignition in boiler applications in the field, however, especially in the field of industrial kilns kiln also applied less plasma ignition research and extension negative. By comparing the current characteristics of plasma ignition technology, Anshan Gongchangling pellet plant rotary kiln pyrolysis using a Russian-type plasma ignition technology, which use thermal cracking burner can ignite low volatile pulverized coal, coal-fired the best rate, and the technology to reduce emissions mechanism nitride has a unique study provides a theoretical basis for enterprises to achieve emission reduction targets, with important economic and social benefits. In this paper, plasma ignition technology in the pellet plant applications, introduces the plasma ignition system components, focusing on the study of the electrical system. According to the load characteristics of the arc, using high voltage arc circuit and main circuit series-dimensional arc way to build the entire electrical system, and were these two circuits and principles for analysis, design of specific embodiments. Using Siemens6RA70as fairing, using S7-200as the core control system, using the USS protocol established master and slave Unicom way through the RS485standard communication interface6RA70,6RA70control the start and stop; pulverized coal for commissioning process does not complete combustion and other issues, analyze a wind, coal particle size, to the amount of powder, affect the power of combustion, presents an appropriate parameter values. Against defects in automation control systems, through the addition of a pressure feedback device and PC, an optimization program for water and gas pressure control device and remote control systems. In this paper, after the transformation of economic kiln ignition is calculated, the conclusion is drying kiln firing40tons of fuel calculation, each able to save fuel costs160,000yuan. By application of a plasma ignition rotary kiln technology in order to be able to transform more kiln ignition provide useful lessons.