cost of vickers water tube boiler

Ash formation was studied using the methods of traditional ash sampling and aerosol technology.By traditional ash sampling methods, samples of ash were collected from different ash streams of the cost of vickers water tube boiler. The collection streams were the fuel feed, sorbent or bed material feed, boiler bottom ash, and the fly ash collected in the electrostatic precipitator. The methods of aerosol technology enabled sampling of the particle directly from the flue gas flows.

Commonly used during the period of the Shutdown of food plants Maintenance Shutdown of the food factory maintenance methods, known from the time of the shutdown cause of corrosion, corrosion can not do without oxygen and water cost of vickers water tube boilers, so to do the maintenance shutdown, the need prevent oxygen to enter and work hard to keep dry. 1, the dry maintenance Dry maintenance primarily by placing a desiccant or a particular gas or the like charged into the boiler water-side holding metal sulfate or preventing the entry of air maintenance method for long-term maintenance shutdown. Commonly used methods desiccant method and inflation method. 1.1, desiccant process. Disable the boiler, the furnace was naturally cooled to be started when the drain 100 deg.] C, using residual heat boiler for drying. Each valve opens and the inspection hole, remove scale furnace, ash and the like. Open containers with a desiccant, arranged along the longitudinal direction of the drum is placed. To determine the amount of desiccant in accordance with the volume of the boiler. To lime, the amount is generally 1m3 boiler is 3 ~ 5kg. Desiccant been placed to be close all valves to prevent moist ambient air from entering. After the boiler to be regularly checked, when found in the case of a desiccant appear consolidation and deterioration should be replaced immediately, usually 15d to be replaced once a month. 1.2, inflation method. After draining water boiler, ammonia gas or nitrogen gas charged into the boiler, to displace the oxygen and water vapor in the furnace, the furnace pressure was sealed and maintained at 0.05 ~ 0.1MPa, prevent outside air into the pot, to achieve the anti-corrosion purpose. This method is simple, reliable, universally applicable to all kinds of boiler structures.

Traditional centralized heat cogeneration district heating transmission pipeline has been lengthened increasingly unable to fully meet the needs of urbanization in the heating market, while large areas of fog and haze has promoted the huge demand for clean heating. At present, the main methods of cleaning heat pump technology, solar energy technology, electrical technology and the Valley of the gas heating technology, and as more and more abundant supply of natural gas, heating comfort has been formed in the northern heating area, as well as the South demand areas of the city and not have central heating, the use of natural gas distributed energy heating has a wider range of adaptability. However, the traditional large energy gas cost of vickers water tube boiler, in the era of high gas prices, high operating costs hampered the large-scale application of gas heating.

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 cost of vickers water tube 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.

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