Revamping technology of coal-fired 65 tph water tube boiler for fertilizer conveyer at present the layer-fired boilers are burning raw coal, in which the majority of coal-fired boilers will hinder the air intake of the boiler and affect the combustion of coal-fired boilers. When the coal-fired boiler is reformed, the bucket-type coal feed is transformed into layered coal, and the middle block of raw coal is distributed loosely from the bottom to the top on the grate by using gravity filter, which is beneficial to the air intake, can improve the combustion condition and increase the combustion rate of coal. Reduce the carbon content of ash.
The structural characteristics of the gas hot water 65 tph water tube boiler for fertilizer 1.WNS a horizontal type gas hot water boiler combustion wet back three return structure. 2. combustion chamber with 100% Fox corrugated furnace, boiler heating surface to increase and strengthen the furnace heat, thermal expansion of the boiler meet the need. 3. sufficient heat transfer area, provided threaded pipe, spoiler terminals, further improving the heat exchange efficiency, and with 10% overload capacity, thermal efficiency of 92% or more, with up to 95% of the economizer. The length and diameter of the flame of the burner, a combustion chamber with a reasonable size, fuel combustion more fully and completely, thus blackness boilers, black smoke, concentration, noise and other technical indicators are better than the national standard. The well-known international brands burner thermal power boiler, furnace diameter, length and considered the furnace overload capacity, selection of matching burners in Germany Weishaupt, Zach, OAK, Italy Decker, combustion flame length and thickness adapted to the furnace, the flame does not scour heating surface, and within the boiler furnace burner output back pressure curve has a greater overload capacity of the boiler, furnace large space structure facilitates fuel combustion flue gas reduce the concentration of contaminants, high combustion efficiency, combustion engine life more than 25 years. (1) Load optimal operation of the burner: using artificial intelligence algorithm, at different stages of loading, different from the stabilization of the load adjusting firepower, to optimize the load adjustment, in order to save fuel, to improve the boiler efficiency. After the purge time (2) burner settings: Active Control boiler running mode to improve security measures boiler. 6. shipped before full thermal performance test platform, four, full-performance test conditions.
If a trend of separation occurs, the furnace bed will not be uniform and the burning will be biased toward certain areas. A uniform consistency of fuel will make for a larger surface area of burning and prevent hot spots and dead air zones within the furnace. Using a fuel transfer and metering system which implements augers to transfer fuel is an effective way to precisely control feed rates as well as maintain a consistent mixture of fuel sizes.
To reduce the total coal consumption, reduce air pollutant emissions, Guigang Municipal People's Government announced the latest "2019 Guigang tackling air pollution control plan" proposed scheme: Guigang City is actively taking measures to reduce coal comprehensive use of renewable energy , natural gas, electricity and other energy alternatives to coal consumption, reduce the proportion of coal consumption, focusing on reducing the total non-electric coal consumption. New coal projects to implement alternative coal reduction, the implementation of inventory management, so that statistics can be verified.
Details are as follows.
First, the implementation of the total coal consumption control. Take measures to reduce overall coal, renewable energy, natural gas, electricity and other energy alternatives to coal consumption, reduce the proportion of coal consumption, focusing on reducing the total non-electric coal consumption. New coal projects to implement alternative coal reduction, the implementation of inventory management, so that statistics can be verified. October 2018 in conjunction with the regional government Council issued the "Guangxi county industrial park planning and adjustment plan" and other industrial park planning and implementation of the adjustment, the promotion of industrial parks to carry out "an area a heat source" upgrade, encourage 300,000 kilowatts or more coal-fired heating unit carried out the transformation in cogeneration planning guidance to promote the backward small coal-fired and coal-fired thermoelectric heat within the range of (biomass) integrated boiler shut down.
Second, accelerate the comprehensive improvement of backward small boilers. According to the State Administration of Work Market and three ministries "on the strengthening of energy-saving environmental protection boiler" (National City Supervisor ad hoc  No. 227) requirements to promote energy efficient boiler environmental protection, energy-saving environmental protection to promote the transformation of boilers, eliminate backward boiler. Coal-fired boilers built-up area to carry out an intensive investigation, the investigation out of the coal-fired boilers to register one by one, to establish accounting and inventory management, according to local conditions, Take Measures to develop small boiler (10 tons of steam per hour and below) Integrated remediation plan, the classification proposed remediation requirements, before the end of May 2019, the Municipal environmental Protection Bureau for the record. Carry out a comprehensive district built 10 tons of steam per hour and small coal-fired boilers out of work, according to the law to increase efforts to eliminate small coal-fired boilers in accordance with regulations, in 2019 the completion of small coal-fired boilers out of the task; all kinds of more than 10 tons of steam coal boiler strengthen environmental law enforcement supervision, strict implementation of emission standards for boilers that can not be stable discharge standards, shall order rectification according to law, after rectification still do not meet the requirements, shall not continue to use; to strengthen environmental law enforcement supervision of biomass boilers, in particular to strengthen regulatory biomass boiler ban on high-pollution fuel combustion zone of the city; biomass boilers boiler should be dedicated, efficient dust bags and other supporting facilities, prohibit blended with other fuels such as coal. The city and county-level cities above the built-up area in principle, to create a new 35 tons of steam per hour of coal-fired boilers and other regions in principle no longer new 10 tons of steam per hour and below the coal-fired boilers.