Longitudinal section of E-75-4-445GM boiler

The E-75 boiler has a single-stage evaporation scheme. Separation devices of evaporation stage are arranged in drum. The furnace chamber of the E-75 boiler is formed by screens - front, rear and side. Each of the side screens of the furnace consists of two blocks along the depth of the furnace. Each of these blocks consists of a flat membrane panel welded to the headers. 4 burners are installed on the front wall of the E-75 boiler. Front screen of furnace forms front wall, half of hearth and part of ceiling. Under a chamotte brick. The rear screen of the furnace forms the rear wall of the furnace, which is common with the lowering gas duct, half of the hearth of the furnace, under the horizontal gas duct, a two-row feston and part of the ceiling of the horizontal gas duct. The E-75 boiler is equipped with gas-gas burners of the type providing the combustion of natural gas and fuel oil. Structurally, the burner is double-flow, with adjustable reversible tangential swirlers and steam-mechanical nozzles. The burner is provided with a photodetector, a panel for manual ignition, gliding and a ignition device. The water economizer of the E-75 boiler is located under the first stage of the superheater. According to the height of the mine, the economizer is divided into two parts with repair openings. The boiler is equipped with emergency drain pipeline, sampling lines, continuous and periodic blowdown pipeline, drain line with installation of appropriate valves.