Coal Gangue Fuel Boiler For Pulp Paper


Coal Gangue Fuel Boiler For Pulp Paper

All along, Zhangjiakou City, Hebei Province, took the central environmental protection supervision "look back" as the main problem of feedback opportunities to enhance the ecological environmental protection, pollution prevention and fight tough fight, active rectification, hard to rectify, resolute reform, promote the environmental reform task completed on schedule. We understand that in 2018, Zhangjiakou City Daly to promote projects cut coal, the accelerated clean alternative to coal consumption year on year in 2017 to reduce 1.04 million tons.

For unfinished "2017, the province's energy cut carbon coal down the main points of" cut annual coal requirements of mission objectives problem, Zhangjiakou City, supervisors coal companies cut coal, high quality coal, strengthen energy-saving technological transformation, to fully grasp the total coal consumption control and reduction of bulk coal.

The strengthening of key coal enterprises cut coal, to promote energy-saving technological transformation projects, several key coal enterprises to continuously improve energy standards. And vigorously promote the project minus coal, coal production in 2018 to defuse 8.6 million tons, out of coal-fired boilers 1663 units. Accelerate clean coal alternative, clean winter heating selected pilot cities in northern, rural complete "electricity instead of coal", "substitution of gas for coal" 6971. And vigorously develop renewable energy sources, as of 2018 the city's renewable energy installed capacity of 13,454,800 kilowatts, accounting for 74.2% of all electricity installed capacity, the highest in the country.

Biomass coal gangue fuel boiler for pulp papers, Henan gas boilers, coal-fired boilers contrast due to environmental pollution problem is serious, the national intensify pollution, especially coal-fired boilers because of incomplete combustion, low thermal efficiency, high pollution emissions, become the primary target of the boiler regulation . Coal-fired boilers due to the low initial investment cost by the majority of enterprises of all ages, in fact, in many ways the point of view, coal-fired boiler is not the best choice. 1, the beginning of investment costs: inputs from the perspective of initial purchase of the boiler, the same tonnage boilers, gas boilers generally highest in Henan, followed by biomass boilers, coal-fired boilers finally. 2, operating costs: the operating costs in terms of the highest Henan gas boiler, followed by coal-fired boilers, biomass boilers and finally, the price of gas prices in various regions are not the same, but much higher than the biomass and coal, biomass price and coal price difference is not big, but because of the low thermal efficiency of coal-fired boilers, coal-fired boiler running costs are higher than the biomass boiler. 3, environmental protection: From the environmental point of Henan gas boiler is undoubtedly the most environmentally friendly, followed by biomass boilers, coal-fired boiler is again. Henan gas boiler fuel is natural gas, biomass fuel boiler is biomass or biomass particles compact, emissions of coal-fired boilers is the largest. 4, Application areas: geographically speaking, Henan gas boiler apparently allow the use of any region, but due to the uneven gas supply, even in some places did not open the gas pipeline, this time biomass boilers to be the best choice, because biomass fuels is still relatively environmentally friendly, because biomass is processed from agricultural and forestry waste such as sawdust or straw fuel. As for coal-fired boilers, in some areas has been limited, it does not allow installation of a coal-fired boiler, due to the different areas of environmental protection standards are not the same, allowing the use of what kind of boiler main contact your local EPA shall prevail.

Function of oil-fired coal gangue fuel boiler for pulp paper furnaceThe furnace of oil-fired boiler, also called combustion chamber, is the space for fuel combustion. The furnace in which the solid fuel is placed on the grate is called a layer-burning furnace, which is also called a fire-bed furnace, and the liquid, gas or powdered solid fuel is injected into the furnace burning in the fire chamber, which is called a chamber-burning furnace, or a fire-chamber furnace, which is also called a fire-chamber furnace, which is called a chamber-burning furnace, or a fire-bed furnace. The furnace in which the coal particles are lifted up by air to burn in a boiling state and suitable for burning inferior fuels is called a boiling furnace, also called a fluidized bed furnace, and a cylindrical furnace in which coal particles are rotated at a high speed by air flow and burned intensively is called a cyclone furnace. The cross section of the furnace is generally square or rectangular. The fuel burns in the furnace to form flame and high-temperature flue gas, Therefore, the furnace wall around the furnace is composed of high temperature resistant materials and thermal insulation materials. Water-cooled wall tubes are often installed on the inner surface of the furnace wall, which not only protects the furnace wall from burnout, but also absorbs a large amount of flame and high-temperature flue gas in the design of the furnace, which needs to take fully into account the characteristics of the fuel used. Each boiler should burn the original fuel as far as possible. The economy and reliability of boiler operation may be reduced when the fuel with different characteristics is used.

Five coal-fired coal gangue fuel boiler for pulp paper gas boiler should pay attention to change the key to change the coal-fired boiler gas boiler should pay attention to the five key coal to gas project in the current renovation work, is more common in different regions, we continue to time nodes began to carry out, then, for the transformation of coal-fired boiler more standards-compliant, you need to note in particular the following five areas: (1) removal of auxiliary original coal-fired boiler, the boiler because if you want to fit in fuel, after the boiler auxiliary systems that should be a complete set. (2) the installation of blast doors. (3) of the boiler pressure test 1.5 times the working pressure. (4) in particular, to note that choosing the right matching burner, because the boiler during operation, the combustion machine is good or bad, is one of the important factors that affect the efficiency of the boiler. (5) In general, we should not try to change the pressure of the boiler body member portion, to make only a partial transformation of the furnace wall and the furnace arch. Of course, coal-fired boiler gas boiler change relatively strict, need to take into account the points will be more, just above these aspects must be considered in place of the step, which is to facilitate the follow-up work. In addition, the renovation work, if that time coal-fired boiler using some of the more than ten years or even longer, it is recommended to consider the purchase of a new gas boiler.

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