clean coal energy fired boiler

Boiler startup startup clean coal energy fired boiler combustion adjustment method should pay attention to the flame monitoring, combustion and make adjustments as follows: (1) correct the ignition. Adequate ventilation furnace before ignition, the ignition first investment ignition device (or torch), then turn the gun. (2) diagonally administered fire mouth, pay attention to timely switch, the flash point was observed nozzle suitable fire, flame sought uniformly distributed in the furnace. (3) to adjust the lead note, air volume, furnace pressure should not be too large. (4) in particular to monitor exhaust gas temperature when combustion instability, the occurrence of the back pass to prevent the secondary combustion. (5) to maximize the temperature of primary air, secondary air is fed reasonable depending on the fuel. Adjusting the temperature difference between both sides of the cigarette. Do pulverizing system-OFF stable (6) operation. Stoker coal under stable powder machine speed and stability. Coal with wind stability and oxygen stable. Steam temperature, steam pressure increase stability and load stability liter.

To improve the quality of atmospheric environment, the Xinjiang Uygur Autonomous Region issued a "Xinjiang Uygur Autonomous Region Air Pollution Prevention Act" (hereinafter referred to as the "Regulations"), adhere to all the people involved, the source of governance, planning ahead, treating the symptoms, cooperative control, damage to bear responsibility in principle.

First, governments at all levels should implement the total coal consumption control system, adopt economic and technical policies and measures to reduce the total coal consumption, encourage and support the development and utilization of clean energy, and guide enterprises to develop clean energy alternatives to reduce coal production , use of atmospheric pollutants, emissions during the conversion.

Second, the regional government development and reform departments shall, jointly with relevant departments, according to the needs of economic and social development and regional environmental resources carrying capacity and other conditions, the development of total coal consumption reduction targets and control programs. State, city (prefecture) and county (city, district) people's government development and reform departments shall, jointly with relevant departments, according to the planning and control total coal consumption reduction targets, total coal consumption in the region to develop control plans and their implementation.

Third, promote urban built-up areas, industrial parks centralized heating, use of cleaner fuels. Before central heating pipe network coverage area, prohibit new construction, renovation, expansion of coal-fired heating boilers, central heating pipe network coverage, has been built using coal-fired heating boilers should stop using the deadline. In areas not covered by the central heating to encourage the use of clean energy alternatives, to promote the use of environmentally friendly energy-saving boiler. When the deadline out of the city government does not comply with national and regional scale coal-fired boilers.

Fourth, according to the city government to improve the quality of atmospheric environment requirements, delineated and publish high-pollution fuel combustion zone ban, and gradually expand the scope of the ban on high-pollution fuel combustion zone. In the combustion zone ban, prohibit the sale, burning polluting fuels; prohibit new or expanded high-polluting fuel burning facilities. Have been completed, should switch to clean energy within the prescribed time limit.

Fifth, governments at all levels should strengthen civil bulk coal governance, prohibit the sale does not meet the civil standard of quality coal for coal, to encourage residents to burn with high-quality coal and clean coal, to promote energy saving stoves, and promote the development of alternative and clean energy in rural areas use. Encourage rural energy-saving housing.

First, to improve the fuel will be coal into gas in principle, more in line with the relevant environmental standards, coal as fuel for the clean coal energy fired boiler has been subject to the authorities to stop, that there is often a company will be coal-fired boilers on the boiler rehabilitation programs into gas boiler embodiment, 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, improve coal-fired furnace boiler furnace to transform into a blast furnace gas fired boiler is the use of auxiliary heating furnace, and then to improve the use of gas for heating, if not exactly when or poor fuel atomization in the combustion furnace gas gathering or tail, it is very prone to catch fire or explode, then the need for means to improve the furnace blast doors, while adding automation and control ignition and flame failure protection devices to ensure safe operation of the furnace process. Third, improve the pre-attached devices did not improve 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 and so on, after adoption of these boiler ancillary equipment gas furnaces do not need to use so that you can save and invest more of boiler equipment. Fourth, improve environmental protection degree We all know that coal-fired furnace has been impermissible environmental policy, coal is a serious source of pollution not only pollutes the environment but also cause a variety of effects on the body, after making use of the boiler gas furnace, greatly reducing soot and various soot emissions can effectively improve air quality, more environmentally better protect the cleanliness of the air, but also more in line with the standards of environment protection and energy policy.

Low NOx emission combustion clean coal energy fired boiler 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.

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