horizontal gas fired boiler manufacturer

horizontal gas fired boiler manufacturer

How to maintain the horizontal fired boiler manufacturer shutdown? After boiler shutdown cooling, heating surface must be thoroughly cleaned of fouling and ash grate the upper, the lower portion of the furnace. Then to maintain a certain degree of natural ventilation flue. In general, in order desiccant moisture should be placed in the furnace, flue. The quicklime as a drying agent, within the furnace or flue gas per cubic meter should be placed generally about 3kg. After placing all the ventilation should be tightly closed doors. After the change of lime powder to be replaced. Low-lying position as boiler room, ground during shutdown severe flood tide, often approach should be used and placed a small fire to dry desiccant combination. How to care? If the boiler shutdown a long time, the boiler shutdown after complete removal of soot coated with an anti-corrosion red lead paint in oil or other metal surface furnace. As internal corrosion Maintenance shutdown of the boiler body, under normal circumstances, can be used wet shutdown maintenance is not more than one month, one month electrically operated steam boiler should be taken to dry more maintenance. To note the following problems when a dry maintenance: desiccant boiler not in direct contact with the metal surface, may be mounted in a container such as the iron plate after the desiccant is placed, and a hole for shutting the other hand hole cover.

August 21 this year, is located in Tai'an City, Shandong Province People's Government issued the "Tai'an City 2018-- 2020 coal consumption reduction alternative work" (the "Program"), "plan" put forward the goal: by 2020 the city's coal total consumption control in less than 16.85 million tons.

"Plan" indicated, coal and other industries to promote the advanced production capacity instead of backward production capacity, optimize the layout of the coal industry, shutting down and eliminate small coal-fired boilers. Upon completion of the city's 10 tons of steam per hour and cleared of all coal-fired boilers, the city and county levels, no new urban area per hour and 35 tons of steam coal-fired boilers; 65 tons of steam per hour and higher fuel coal boiler completed the transformation of energy-saving and ultra-low emissions, reduce coal pollution, speed up the heating pipe network construction to expand the scope of central heating. Actively expand the consumer market in natural gas, fuel structural adjustment, encourage the development of direct supply of natural gas to large users to promote key industrial enterprises, industrial parks to achieve direct supply of natural gas. By 2020, natural gas consumption in the proportion of energy consumption increased to about 7%.

It is reported that the city will strengthen the clean-up before 2017 and shut down illegal projects, energy regulation and elimination of backward small boilers, small thermal power production, and resolutely prevent their return to work to resume production. And optimizing the layout of the coal industry, in strict accordance with the State-owned power plant deploy clean up illegal construction, and resolutely shut down coal units do not meet behind environmental protection, energy consumption, safety and other requirements. Meanwhile, on the basis of improving industrial enterprises above coal consumption data networking direct reporting system, increase audit statistics and law enforcement, and strengthen the quality of statistical data management, improve the accuracy and timeliness of coal consumption statistics.

Problems coal horizontal fired boiler manufacturer gas boiler gas coal problems are: 1, more coal ash, 2, unevenness of coal particles, 3, coal contains a large amount of impurities, 4, a lower heating value of coal, 5 when combustion is not easy to ignite fire, 6, coal moisture content uncertain. 7, does not burn coal, slag high carbon content. In general, use is preferably designed coal boiler design coal or coal close, in order to ensure stable combustion. In recent years due to the growing tension surrounding the coal supply, coal supply has become diversified, coal quality is very different than before coal, have a great impact on the stability of the boiler combustion and normal heating operation. Impact of coal combustion boiler stable for: calorific value of coal is coal reflects an important indicator of good or bad, when the low calorific value of coal to a certain value, will not only affect the incomplete combustion instability and can lead boiler flameout, the outlet temperature of the boiler is difficult to compliance, affecting the normal operation. Volatile combustion and can be deposited at lower temperatures, as the combustion heat, the temperature rapidly increased coke particles, provide an extremely favorable conditions for ignition and combustion, volatiles further increased coke deposition and internal voids and the external reaction area, will help improve the speed of burning coke. Thus, the greater the content of volatile, nonflammable, the less fixed carbon in the coal component, the easier coal burning ember, devolatilization of many voids, increases the surface area of ​​the reaction, the combustion reaction is accelerated. When the volatile content is reduced, pulverized coal ignition temperature significantly increased, the hot increases, difficult fire, ignition time required becomes longer, the combustion stability is reduced, shifting the center of the flame, furnace absorbed radiation heating surface reduce heat, increase the heat absorption of the convection heating surface, the rear exhaust temperature, exhaust loss increases.

? First: to improve fuel will be coal into gas in principle, more in line with the standard requirements of the relevant countries, fueled by coal horizontal fired boiler manufacturer has been subject to strict national authorities to stop, that there is often a boiler in the enterprise will fired boiler into gas boiler rehabilitation programs embodiments, may use natural gas or alcohol as a fuel after passing through this transformation, the raw coal to reduce all kinds of pollution caused by the fuel, thus using not only environmentally friendly but also improvement in the fuel cost. Second: the furnace to improve coal-fired boiler furnace into a gas furnace is the use of coal-fired auxiliary boiler for heating the furnace, and then to improve the use of gas for heating, if not exactly when or poor fuel atomization in the combustion gas gathering hearth or tail, it is very prone to catch fire or explode, so then you need to hearth to improve device blast doors, while adding automation and control ignition and flame failure protection devices to ensure safe operation of the furnace process. Third: When ancillary equipment prior to improvement has not improved during the coal-fired furnace operation requires a lot of ancillary equipment to carry out normal operations, ancillary equipment commonly used in general including the coal, Cleaner, dust collector and grate, etc. followed by boiler using these accessory devices do not need to use a gas stove, so you can save and invest more of boiler equipment. Fourth: to improve the degree of environmental protection we all know has been a coal-fired furnace is not allowed by the national environmental policy, coal is a serious source of pollution not only pollutes the environment but also cause a variety of effects on the body, adopted after performing boiler gas furnace and greatly reduce emissions of soot and various dust can effectively improve air quality, more environmentally better protect the cleanliness of the air, but also more in line with national standards of environment protection and energy policy.

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