To further the process of coal to electric propulsion coal boiler made in chinas need to let everyone know the benefits of which, with respect to coal for electric power has the advantage is obvious, we need to highlight when promoting coal to electric boiler power boiler can excellent play a good role, so that the measure coal to electric boilers which brand is good, we also have a reference.
Recently many of my friends to consult some "coal to gas" issue, the cost is certainly more expensive than coal-fired coal boiler made in chinas, but specifically how much more expensive? The count this account of how the enterprise? We've put together some information for your reference.
Low NOx emission combustion coal boiler made in china technology a boiler combustion boiler hypoxic hypoxia NOX emissions from combustion is the easiest way to control. And a combustion burner system does not need to make any changes, only control air flow into the furnace in operation, pulverized coal combustion process as close to the theoretical combustion air amount. Low oxygen combustion scheme can reduce NOX emissions by 20% to 30%. The program practical application subject to conditions. Low oxygen furnace, will increase the amount of unburned carbon, and more difficult for the flame of burning coal more obvious; Further, the CO concentration is also increased so that smoke, which will cause decreased boiler efficiency. Another problem is that for certain boilers, hypoxia causes the main combustion steam or reheat steam temperature is low. The burning coal to immediately, boiler efficiency and reduce the magnitude of steam temperature and other properties to determine the appropriate control value of flue gas oxygen furnace outlet (at or economizer) the specific embodiments. Second, air staged combustion technique combustion air into a plurality of strands, it is gradually mixed and pulverized coal combustion, so you can see the local area to reduce the air-fuel ratio, and the thermal decomposition of coal in the ignition phase, due to hypoxia, and thus the nitrogen oxide generation is suppressed. Air classification may be implemented within the combustor, the boiler can be completed within. 85% of the amount of air required for complete combustion is introduced to the main burner, the main burner combustion zone is insufficient oxygen for the fuel-rich conditions. Due to insufficient amount of oxygen, the flame temperature is low, the amount of nitrogen oxides to less generation of fuel nitrogen intermediates (e.g., NCH, NH3, etc.) will therefore not be oxidized NOX. Meanwhile, it has been possible to further reducing NOX generated in a reducing atmosphere to molecular nitrogen (N2 of), as a result reduces NOX emissions. An upper portion of the top floor is provided Ge overfire air (of OFA) spout into the furnace through which about 15% of the rest of the air, to avoid the high temperature flame zone, it is also possible to burn unburned carbon particles, to complete the combustion process.
Jiamusi City, Heilongjiang Province Tangyuan county government to further implement the "Heilongjiang Provincial People's Government of Heilongjiang Province on the issuance of three-year action plan to win the notice of blue sky Wars," the actual situation, carry out a comprehensive rectification for small coal-fired coal boiler made in chinas, as follows .
First, the objectives
By the end of 2019 out of the region to build 26 units per hour and 10 tons of steam coal-fired boilers and furnaces tea, operating a stove, food equipment and other coal-fired kiln drying facilities. Out of which 14 coal-fired heating boilers Small units, service three coal-fired boilers, industrial production of small coal-fired boilers nine. By the end of 2020, the region will build small coal-fired boilers cleared number, and completed more than 10 tons of steam per hour of coal-fired small boilers governance standards.
Second, the specific content of execution
1, source control. County-level cities built in the region 35 tons of steam per hour ban on new coal-fired boilers, the rest of 10 tons of steam per hour ban on new coal-fired boilers and below.
2, find out the base. Focus on carefully checking the area of coal-fired boilers case, before the end of May, the completion of the area and the development of coal-fired boilers ledger built-up area, and clearly out of all kinds of coal-fired boilers responsible departments and completion time.
3, held a mobilization meeting. 10 tons of steam per hour, organization and small coal-fired boiler unit, responsible departments held a meeting to clear out of time limits, and invite gas companies, boiler manufacturers, heating companies and small boiler unit for docking, to help provide alternative solutions Program.
4, announced the phase-out plan. Through government websites, issued to small coal-fired boiler unit a variety of ways such as notification, publish small coal-fired boilers out of the list, time frame for completion and telephone hotlines.
5, to carry out law enforcement inspection. Organization of joint law enforcement inspection, supervision of small coal-fired boiler unit to carry out the planned phase-out time frame. Carried out errant time, press the "Heilongjiang Province Air Pollution Prevention Act," the imposition of penalties.[email protected]
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