Biomass Pellet Hot Water Boiler Hotel Hot Water
Wood Waste Biomass direct firing is still the most mature and promising utilization method.High volatile matter, low ash matter, low N and S content, and CO2 “zero emission” make wood waste biomass a premium fuel for water tube CFB boiler.
Currently, biomass boilers results in incomplete combustion of the fuel in the main factors: the temperature of the furnace is not enough, lower than 600 ℃, good combustion can not be established normally structure; the amount of air supplied to the fuel can not meet the combustible components required for complete combustion; amount of air supplied is sufficient, but due to the mixing and contacting do not, initiate combustion disorder; water-based fuel used in the boiler is too large, when the fuel moisture more than 45%, combustion can be difficult to ensure normal combustion; fuel particles are too large, is not conducive to combustion reaction; or the reaction time of the combustion grate enough vibration amplitude is too large, the interval is too short, insufficient burning time; much ash, coke particles and wrapped, the combustion rate slowing; feed lot, on the grate fabric layer is too thick, gas-solid mixture is not benign; feed grate or thin material less heat storage capacity is insufficient. Products of biomass combustion boiler, contains a lot of combustible, ash black, sometimes visible raw material is discharged. The combustion gas contains a large amount of carbon monoxide combustible components. Factors causing incomplete combustion boiler fuel as follows: (1) the furnace temperature is not enough, lower than 600 ℃, good combustion can not be established in general structure. The amount of air (2) supplied in the fuel can not meet the need for complete combustion of the combustible component. The amount of air (3) is sufficiently supplied, since poor mixing and contacting the combustion disorder. (4) abnormal accident. (5) too much water the fuel as received, more than 45% of the water is difficult to ensure the normal combustion of the fuel. (6) the fuel particles are too large, is not conducive to the combustion reaction. (7) the reaction time of the combustion is insufficient, the amplitude of vibration of the grate is too large, the interval is too short, short burning time. (8) much ash, ash coke particles wrapping, slow combustion, (9) a feed lot, on the grate fabric layer is too thick, not gas-solid benign mixed. (10) the feed grate or thin material less heat storage capacity is not strong.
To continue to improve air quality and protect people's lives and health, Hainan Province, issued a "Hainan Air Pollution Prevention Regulations" (hereinafter referred to as "Regulations"), a clear implementation of the total coal consumption control system, and gradually reduce the amount of coal consumption, phase out existing coal-fired units. "Regulations" since March 1, 2019 into effect.
"Regulations" put forward specific requirements for coal and other energy pollution control.
A prohibited import, sale and burning of coal does not meet quality standards; prohibited the import, sales do not meet standards of quality petroleum coke; prohibition of burning petroleum coke. Above the county level department in charge of market supervision and management need to be strengthened coal, petroleum coke quality management, from time to time on coal, petroleum coke quality sampling.
Second, the people's government above the county level market supervision and administration departments shall, jointly with relevant departments in charge of the environment, industry and information technology, etc. According to China's Hainan Province and the relevant provisions to strengthen the supervision and management of boiler production, import, sale, use, etc., do not compliance with environmental standards or requirements shall not manufacture, import, sale and use. Phasing out coal-fired boilers. Existing clean energy such as natural gas-fired boilers, furnaces, low NOx combustion should be completed within the prescribed period of transformation of the people's governments above the county level department in charge of the ecological environment. New clean energy such as natural gas-fired boilers, furnaces and other facilities shall pollution control measures such as the use of low NOx combustion.
Third, the central heating has been implemented for the work (production) business park, a ban on new construction, renovation, expansion of decentralized heating boilers, heating boilers should be dispersed in the original city, county, autonomous county people's government department in charge of market supervision prescribed period in the demolition; work not yet implemented central heating (production) business park has heating demand should be in the city, county, central heating implementation as soon as possible within the time limit prescribed Autonomous County people's government department in charge of market supervision and management, and removal of the original dispersion heating boilers.
To ensure smooth fuel feeding, biomass fuels have to be carefully sized and processed. The moisture content of wood and other biomass waste can vary over a wide range, from 10 percent to more than 60 percent. To ensure steady heat input into the boiler using volumetric feeders, efficient homogenization of fuel with different moisture contents at the fuel yard is a necessity. Horizontal biomass fired steam boiler in Thailand, its rated steam evaporation is among 4 ton to 20 ton each hour. And the two sides of the furnace and its combustion adopts membrane water wall structure whihc is designed by our company independently. It has features of wide range of over load adjusting, wide fuel availibility, wide usage etc.