How a 20 ton coal fired boiler working is a main question what clients caring about, here, I will talking about how a coal boiler working during production in briefly below:
1. The type of boiler scale type of boiler scale (1) an alkaline earth metal scale: comprising calcium as a main component of scale, scale such as calcium sulfate, calcium silicate scale, calcium carbonate scale and the like, magnesium as a main component, such as hydrogen hydroxide scale, dirt and other magnesium phosphate. (2) the dissolved iron: comprising iron as a main component of scale, dirt iron oxide, iron silicate and a dissolved iron phosphate scale. (3) Aluminum scale: aluminum as the main component is a scale, such as aluminum silicate scale. (4) Copper scale: copper as a main component is a metal of scale. Calcium sulfate scale hard and dense, low pressure in the boiler arrangement, mainly in the form of gypsum or hemihydrate precipitate is attached; in the boiler body, in the form of an anhydrous compound precipitated attachment. Calcium silicate scale mainly in the larger heat load boiler heating surface is formed, which precipitate as wollastonite, large scale hardness, poor thermal conductivity, can be firmly adhered to the heating surface. Carbonate scale have different characteristics, it may be both hard scale, and may be soft water residue. When the boiler water evaporated weak, often carbonate crystals precipitated into a hard scale. When the furnace violent boiling water, carbonates and often precipitate water residue. Magnesium hydroxide and magnesium phosphate easily adhere to the wall of the boiler, the formation of secondary scale. Most scale component is an alkaline earth metal scale (90%), as well as iron scale, scale aluminum, copper, dirt and other organic and metallic corrosion products and the like. By scale formation procedure can be divided into two types: one is a scale salt impurities formed by direct crystallization of the heating surface; one easily adhered slag heating surface, secondary scale again. Slag is divided into two, in addition to a water-slag easily adhere to the heating surface, the formation of secondary scale is difficult to remove by mechanical means, but there is a slag flow state was difficult to adhere to the heating surface in execution a method in accordance with the sewage discharged.
Directly under the Central Government Offices Administration (referred to as the straight Authority) is the CPC Central Committee and subordinate units, are responsible for the CPC Central Committee and services for the organs and services, an important function of serving the people. Central Government institutions funds, finance, public service vehicles, the state-owned assets and real estate management, service management is responsible for the specified life of the party and state leaders as well as services related objects.
What is boiler overhaul: boiler overhaul is to persuade equipment to carry out comprehensive inspection, cleaning, repair and equipment transformation. It took a long time to recite. Boiler overhaul projects are divided into two categories: general projects and special projects, sometimes called standard projects and special projects.
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