Hot blast stove has been widely used in our daily life. Do you know if the water in the hot blast stove can be reused easily? If you don't know, let me know about it.The water entering the hot blast stove can not be simply reused or simply added to the lost water, and the water quality needs to be adjusted by technical means. That is, the suspended solids, colloids, organic matter, various dissolved salts and gases in the boiler feed water are treated, and the water quality in the boiler is adjusted to make the boiler feed water and boiler water meet the standards. The purpose of boiler water treatment is to prevent scaling, salt accumulation and corrosion of boiler water vapor system. The long-term recycling of hot-blast stove boiler water makes the inner wall of boiler pipe scale, which can be divided into carbonate scale, sulfate scale, silicate scale, iron oxide scale, oily scale, mixed scale and mud scale according to its chemical composition. These components can make the heat transfer performance of the boiler heating surface become weaker, the boiler thermal efficiency is reduced and fuel is wasted. Scale is a kind of material with extremely poor thermal conductivity, which is only one tenth to one hundreds of the boiler steel (the thermal conductivity of the steel is 46.5-58.2w/m.k), and it is the source of "all kinds of hazards". The largest scale.
Hot blast stove in operation, due to sampling, blowdown, leakage, heat generation and other reasons, will lose part of the quantity. Moreover, when the production backwater is polluted and can not be recycled, or there is no steam backwater, the water that meets the water quality requirements must be replenished, which is the replenishment water. Replenishment water is the part of boiler feed water which is supplemented except a certain amount of production recovery. Because the boiler feed water has certain quality requirements, so, feed water generally have to undergo appropriate treatment, when the hot stove does not have normal return water, feed water is equivalent to feed water. When the heat of steam or hot water is utilized, the condensate or warm water should be recovered as much as possible, and this part of water should be recycled as backwater. Increasing the proportion of feed water and backwater can not only improve water quality, but also reduce the workload of producing supply water. If steam and hot water have been seriously polluted in the production process, they can not be recycled.
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