1t Natural Gas fired steam boiler Manufacturers Bhutan

75 ton CFB boiler

Fuel Flexibility: The most important advantage of the CFB boiler is the flexibility of firing a wide range of coal from 9500 to 25000 kJ/kg. CFBs can also burn a limitless number of other types of solid fuels, separately or mixed with coal. The limitations if any are only in the feeding and other mechanical equipment. The output capacity and steam parameters depend on the heating value of the fuel.

75 ton CFB boiler can use different types of solid fuels that include low quality coal, lignites, coal blends, bagasse in sugar plants, bark in pulp and paper mills, coal washery rejects in mines, petcoke and other bio mass products. Most of these fuels are seasonal, production or availability dependent. Mixing with coal or using coal when other fuels are not available gives an uninterrupted steam and energy supply.

1. Sulphur Dioxide removal: Firing high Sulphur coal requires the use of a Flue Gas Desulphurisation (FGD) plant to keep emissions within statutory limits. An FGD is a complicated plant that requires high capital investment and operational cost. In a CFB limestone addition in the furnace converts the SO2 to sulphates during the combustion and circulation which goes out with the ash. A CFB boiler costs less than a PC fired boiler with an FGD.

2. NOx Reduction: The combustion temperature in the furnace in a CFB boiler is considerably less than PC boilers resulting in lower NOx emissions. There is no additional requirement of separate NOx capturing devices which reduces capital investment.

3. Maintenance: Eliminating the pulverizer and pulverized coal piping reduces maintenance, related outages and equipment redundancy. A part of this saving is offset by higher maintenance due to erosion in pressure parts and furnace area, and maintenance of the refractory.

Chongyang County, Hubei Province since the second half of 2015 to carry out the work out of small coal-fired boilers, non-New 20 tons of steam / hour and below the coal-fired boilers, the full implementation of small coal-fired boilers out of work, with environmental protection, Development and Reform Commission, by letter and other related sector wages, work to strengthen the efforts to promote thorough investigation of strict control to ensure that the county's non-compliance of small coal-fired boilers have all been eliminated remediation. In the specified date (June 30, 2017) completed the small coal-fired boilers out of the task before. Up to now, Chongyang County is not a new coal-fired boilers.

It is understood that, recently, joint quality supervision department of Chongyang County People's Government of Hubei Province, a special selection of personnel to carry out "looking back" activities for the phasing out small coal-fired boilers, special personnel division of responsibilities is based on special teams, focus on examination paper, under chemicals, wine, agriculture, and several other sectors and enterprises of boiler equipment, non-small coal-fired boilers happen "resurgence" phenomenon.

Electric 1t fired steam boiler manufacturers bhutan pressure and temperature protection system into the electric boiler fuel vapor from the ambient air by automatically adjusting the burner, the fire automatically generate high-temperature flames, into the inner drainage density within the furnace top furnace, in a lower portion of the furnace off into the furnace between 180 ° interlayer adhesion drain, then fold the lower portion of the furnace flue port 180 ° into the ribs between the cylinder and the sheet packing layer, the flue gas leaving the upper portion of the flue port between the heat transfer fins boiler to the chimney into the atmosphere. Protection system more perfect, there are water protection, pressure protection, temperature protection. When the pressure of the steam boiler exceeds the rated power, the need for chain protection: is shutdown, the system stops the combustion; fire mouth can also be varied, single-stage or two-stage combustion, can adjust the amount of oil, so that the step-down, ensuring fuel vapor boiler safe operation.

How to use cheap coal-fired boiler, gas boiler and hot water boiler: gas 1t fired steam boiler manufacturers bhutan burner underlying mode, two-pass configuration, the fuel combustion, the boiler operation is stable and take up less space, while the spoiler is inserted smoke tube, slowing exhaust speed, increase heat transfer, high thermal efficiency, reduce user costs of coal-fired boilers, gas boilers, to achieve environmental protection, energy saving effect. Dust content of exhaust gas can be reduced by 30% to 40%. Mounting position: the oil pump is mounted between the nozzle and the combustion chamber or the ambient temperature should not exceed 360 ℃. Combustion apparatus exhaust gas discharged air pollution is greatly reduced. An exhaust gas of carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC) and other harmful components greatly reduced, harmful exhaust gases reduced by 50%.