bagasse fired boilers in sugar plants
The bed temperature control parameters directly affect the important safety CFB bagasse fired boilers in sugar plants can run continuously, but also directly affects the generation of boiler operation of the desulfurization efficiency and NOx. Usually ultra high temperature CFB boiler bed temperature control between 790V~900 ° C, the temperature of the furnace is the optimum temperature to achieve desulfurization. Not only will decrease the bed temperature is too low boiler efficiency, it will result in the boiler unstable and prone to fire. Bed temperature is too high will cause the furnace desulfurization efficiency decreases and the amount of NOx will be greatly increased, but also likely to cause material coking furnace bed, and if the situation coking furnace bed material must be shutdown occurs. Therefore bed temperature control is critical for ultra-high temperature boiler CFB.
The latest was informed Tongling Municipal People's Government issued the "Notice on Tongling City to win the Battle of Blue Sky embodiment", as follows.
First, deepen industrial pollution control
Continuing to promote a comprehensive industrial pollution discharge standards, increase penalties and excessive joint disciplinary efforts, not discharge standards of the enterprise to suspend for rectification according to law. Implementation covering all stationary sources of emissions permits enterprise system, before the end of 2020 to complete the trade provisions of the license issued discharge permit management directory.
Carry iron and steel, cement, nonferrous metals, thermal power, coking, casting and other key industries and ports, shipping, coal-fired boilers fugitive emissions investigation, the establishment of management accounting, before the end of 2019 to complete the material (including waste) transportation, handling, storage, transfer and process fugitive emissions such as in-depth treatment.
Second, the continued implementation of the total coal consumption control, strict implementation of coal consumption reduction instead. By 2020 the city's coal consumption control in less than 13 million tons of coal accounts for the proportion of total energy consumption to decline further. Strict implementation of new coal projects coal reduction instead. Added support for the power industry outside of iron and steel, chemicals, nonferrous metals and other industries coal projects, the implementation of coal consumption reduction of 1.5 times alternatives. Increased focus on bulk coal remediation efforts. High-pollution fuel combustion zone ban bulk coal sales all clear.
Third, the implementation of the "coal to gas" and "electricity instead of coal." Strengthening the capacity of natural gas supply security, promote glazed tiles, casting and other industries natural gas instead of coal gasification project, orderly implementation of coal-fired facilities from coal to gas. Combined with regional and industry energy characteristics, and actively promote the implementation of "electricity instead of coal" in the field of industrial production, transportation, agricultural production, living and so on.
Fourth, continue to strengthen the supervision of the boiler. Consolidate the results of rectification of small coal-fired boiler, make sure the rebound does not occur, a citywide ban on new 35 tons of steam per hour and coal-fired boilers. Increase efforts to eliminate small coal-fired boilers. Dynamically updated list management coal-fired boiler, built-up area City 35 tons of steam per hour coal-fired boilers by the end of 2019 total phase-out or implementation of clean energy alternatives; retention of six chemical companies 2 130 tons of steam per hour of coal-fired boilers to complete all energy saving and ultra-low emissions transformation.
Fifth, strengthen the bulk coal governance. Strictly implement the "Interim Measures for commercial coal quality management" (National Development and Reform Commission Order No. 16) and technical standards for coal-fired boilers, in-depth implementation of bulk coal remediation crucial action, and strictly implement the ban on burning areas prohibit the use of high-polluting coal for fuel measures. To strengthen the management and control of coal-fired coal. Ongoing monthly coal quality sampling, and promote enterprises to increase coal-fired coal reform efforts.
(4) The water level gauge and the safety valve fail, and the bagasse fired boilers in sugar plants cannot be operated safely.
(5) When the drain valve fails and the control valve is closed tightly.
Operation Principle of Gas Steam Boiler
The gas steam boiler is a heat energy conversion device that uses natural gas, liquefied gas, city gas and other gaseous fuels as fuel, burns the heat released in the furnace, heats the water in the pot, and vaporizes it into steam. The water is constantly heated by the energy released by the combustion of the gaseous fuel in the boiler (pot), the temperature rises and the pressurized steam is generated, and the boiling point of the water rises with the increase of the pressure, the pot is sealed, the water vapor The expansion inside is restricted to generate pressure to form thermal power (strictly speaking, the water vapor of the boiler is formed by constant pressure heating of water in the drum to re-vaporization of saturated water) as an energy source.