Industrial 2000kg gas fired steam boiler
2. Oxygen corrosion
For the biomass fuel boiler pressure parts,the water side is mainly electro chemical corrosion,the fire side (or flue gas side) is mainly chemical corrosion.The oxygen corrosion belongs to electrochemical corrosion, it is mainly caused by the dissolved oxygen in water.At room temperature,the dissolved oxygen concentration is about 9.1mg / L,according to the GB1576-2001 “industrial boiler water quality” requirement ,the rated steam pressure should not be more than 1.0MPa,the dissolved oxygen concentration should not be more than 0.1mg / L,otherwise,it is likely to lead to metal corrosion.
Now we have many types industrial 2000kg fired steam boiler for chili sauce factory, there are gas fired steam boiler, oil fired steam boiler, coal fired steam boiler, biomass fired steam boiler, solid fuel steam boiler, straw steam boiler. The chili sauce plant can choose the suitable steam boiler according to the fuel cost in the local.
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Advanced equipment and principles of industrial 2000kg fired steam boiler desulfurization and dedusting analysis of small and medium boiler outlet dust concentration in the combustion of various structures are much higher than the maximum allowable dust concentration values specified in our standard, so in addition to the correct choice burning structure and improve operational level, to burn coal dust boiler equipment must also be provided at the rear of the boiler, the flue dust is then trapped into the atmosphere. Dust into five categories according to their action principle (1) comprises a gravity dust precipitator mechanical force, an inertia dust collector, a centrifugal dust collector. (2) comprises a water bath washed filter dust collector, a foam-type dust collector, venturi dust, water, dust and the like membrane. (3) comprises a filtering dust collector (4) an electrostatic precipitator and baghouse dust particle layer and the like. (5) a magnetic filter. Gravity settling dust collector 1. The principle is: When the flow rate of the flue gas into a large space to reduce soot particles by means of its own gravity larger, natural settling by gravity separated from the flue gas. 2. The cyclone dust cyclone called centrifugation, the principle is strongly flue dust along the cylindrical wall is rotated within the gas cyclone, and gradually decreased along the tubular wall a helical motion. Strong centrifugal force generated by rotation, the cylindrical wall surface of the body thrown dust, dust on the wall surface by gravity to the bottom of precipitator gradually decreased, and is discharged through hoppers. Purified flue gas is discharged from the middle of the dust core tube. Centrifugal mill precipitator 3. The principle is: the tangential direction into the flue gas at a high speed from the lower portion of the cylindrical housing, along the rotating cylindrical wall, the nozzle along the upper circumference of the cylindrical housing into a uniform tangential spray in when the inner wall of the cartridge housing forming a water film, since the centrifugal force, is thrown dust cylindrical wall, and the stick water film and water film flows along the conical hopper, is discharged from the ash discharge outlet, the purified flue gas from the housing an upper discharge.