It is understood that around prevention and control of air pollution, ecological Environmental Protection Office of Shaanxi Province has formulated the "Boiler Air Pollutants Emission Standards" ( "Standards"), amended the "off key industries in the region of atmospheric pollutant emission limits." In the future, biomass, alcohol fuel boiler emissions also be included in "Standards".
"Standard" is to integrate and improve the local air emissions standards boilers. "Standard" for the scope of the province, covering coal, gas, oil, various types of fuel such as biomass; using alcohol fuel (e.g., methanol, ethanol, dimethyl ether, etc.), gas-fired boiler with reference to the implementation of emission limits.
After calculation, coal-fired thermal power boilers in Shaanxi Province implementation of the new standards, particulate matter, sulfur dioxide, nitrogen oxide emissions respectively about 0.67 tons 15,200 tons, 1.26 tons, down 27%, 40%, 21%; Burning after transformation of coal boiler, particulate matter, sulfur dioxide, nitrogen oxide emissions can be about 01,400 tons, 1.42 tons 14,100 tons.
With the haze pollution reduction work to promote strong, Shaanxi Province coal-fired generating units and 20 steam tons / hour or more coal-fired boiler to carry out the transformation of ultra-low emissions, will gradually iron and steel, cement and other industries to carry over non-electric low-emission transformation, the original standard has been overtaken by change of environmental situation. Additionally, the Guanzhong area of glass, ceramics, bricks, gold and other industry, there are a certain number of kiln, its environmental requirements leniency.
The revision of the "off key industries in the region air pollutant emission standards", the abolition of the thermal power industry, coal-fired boiler emission limit requirements, these two sectors rose to individual standards province-wide.
It also increases the coke nitrogen oxide emission limits Chemical Industries, gold industry, glass and glass products, ceramic industry emission limits, increasing the concentration of tile industries and atmospheric pollutants conversion approach.
The new standards are expected coke chemical industry NOx emissions will decrease 70%, the sintering process the steel industry, the particulate matter, SO2, NOx emissions decreased by 50%, 72% and 67%, respectively.
ZG provided two WNS series steam boilers for its production base. This type of WNS horizontal steam boiler adopts a large-area combustion chamber design to make combustion more fully, and adopts an advanced wave furnace structure, which increases the heat transfer area while satisfying the free expansion of the furnace after it is heated. The burner with good self-control performance is configured to achieve maximum automation. Fully in line with the needs of future production in the local textile mill for the production of steam supply.also the horizontal boiler has such as easy operation, high output, clean compusation and so on.
How to buy factory premises Selection boiler: I believe that every user in the initial purchase of the boiler, when the boiler are filled with questions. Boiler model selection is undoubtedly one of the most important and most difficult issues. If you choose a larger model will result in energy waste, increase business investment cost; use a smaller model afraid not enough normal business use, and gave enterprises to increase the problem.
How to use the boiler for a long time by cleaning and how to use it better, the scale and corrosion of the boiler inevitably occur. The main reason for the formation of the scale in the boiler is that the water is supplied with the hardness component and goes through the high temperature. After continuous evaporation and concentration at high pressure, a series of physical and chemical reactions take place in the furnace, eventually forming a hard, dense scale on the heated surface, resulting in a decrease in the heat transfer effect and corrosion factors under the scale. It will reduce the heat absorption of boiler water wall furnace, increase the boiler outlet temperature, and increase the boiler loss. At the same time, after scaling in the water wall, the heat transfer effect is reduced, which may lead to the water wall tube. The increase of wall temperature leads to the explosion of water wall tube, which affects the safe operation of boiler. Scale is the first harmful factor of boiler, and the main cause of boiler accident. Its harmfulness is mainly manifested in the waste of a large amount of fuel: because the thermal conductivity of scale is only a fraction of that of steel, the heat transfer will be blocked after scaling on the heated surface. In order to maintain a certain output of the boiler, it is necessary to raise the temperature on the side of the fire so as to cause the heat loss caused by outward radiation and exhaust smoke. High efficiency environmental protection non-corrosive cleaning agent can be used to clean the gas-fired boiler so that the tube of the equipment can be exposed to the original metal color and the influence of scaling and biological algal sludge can be reduced. At the same time to iron oxide and sub- Iron oxide has the function of stripping, prolonging the service life of gas-fired boiler, reducing energy consumption and increasing productivity.
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