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Working principle: 

less than 10mm of broken fuel, enters into the furnace plate in controllable uniform speed, the blower will shoot pressure air into the furnace through the hood of the plate, lift the granular fuel to make it "fluidized status" combustion, and then the fuel constantly collision cracking further deepen the combustion to burn out, general furnace not burning high ash, low calorific value of fuel can be stable combustion and reach high burnout in this fluidized furnace. 

Main performance and features:

★ Full combustion, high efficiency, coal saving; burnout rate can reach more than 98%, thermal efficiency up to 95%;

★ Can burn various solid fuels with low calorific value greater than 1500kcal/kg, such as bituminous coal, anthracite, supplementary lignite, coal gangue, oil shale and biomass fue etcl;

★ Friendly environment: the furnace can be used in limestone desulfurization, so that the sulfur in the coal is discharged with slag in solid form in a solid form , low NOX content in flue gas, and less harmful gas emission;

★ flue gas temperature is set according to different process requirements, which is stable and adjustable in the range of 100℃ -900℃, and less heating temperature fluctuation caused;

★ ignition is easy, can keep fire for 48 hours after ignition; during fire keeping, no need re-ignition before start the furnace; 

★ High degree of mechanization, simple operation, intelligent design of thermal control; long service life, less easy-damaged parts, easy maintenance;

★ The model with double foundation planes: build the furnace body on different foundation planes, and the relative height of the furnace body reduced, strength and stability of the furnace body increased, low maintenance cost; at the same time, there are three sides of the operation furnace doors, the operation is easier and more convenient;

★The type with steel and mixed structure: stable structure, long service life, short construction period, simple foundation, beautiful appearance;

★The type with low nitrogen vortex environmental protection fluidized bed: low nitrogen oxide generation, higher combustion efficiency, short construction cycle, construction of dust-free waste residue, friendly environment, small area, etc.;

★Explosion-proof series: multi-grade gas solid separation, less fly ash, no open flame; flue gas outlet temperature at 200~300℃, lower than the burning point; especially suitable for the drying process of flammable and explosive materials;

★Low fly dust series: repeated cycle burnout technology used, unburned coal in fly ash can be burned again, burnout rate above 98%; optimized wind system with large pitch variable aperture cap, to make the fuel achieve good boiling fluidized quality and combustion effect; fuel adaptability is good, ash can be comprehensive utilization, ash slag without high temperature melting, good activity, carbon content is less than 1%;

★The heating capacity is 20% surplus than the quota value, multiple protection, safe and reliable; 

Selection parameter table:

Desulphurization system: 

Compared with any other coal-fired furnace, easy to desulfurization and friendlier environment. When burning inferior high-sulfur coal, use limestone to solidify sulfur, make the sulfur discharged in solid status, reduce the pollution of SOX. This furnace dry desulfurization for pollution control, less investment, small area, low operating cost, equipment simple, convenient maintenance.

Tianlong coal-fired furnace, desulfurization device has formed its own whole system, set scientific and reasonable, no affect in the coal feeding system, can reserve, the desulfurization effect is better than that of mixed coal and desulfurizer, dry type of fluidized bed flue gas desulfurization device is especially applicable when the sulfur content of coal burning is low, and which is an economical and effective flue gas desulfurization technology. 

Denitration system: 

SNCR is selective noncatalytic reduction denitration technology, is a kind of clean denitration technology without using catalyst. The ammonia-containing reducing agent (such as ammonia, urea solution etc.) directly into 850~1100℃ high temperature flue gas, under high temperature conditions, reducing agent first decomposed into NH3 and other by-products, then, the NOX in flue gas and NH3 further redox reaction, reducing NOx in the flue gas, generate nitrogen and water.

Effect:

NOx emission concentration: less than 50mg / Nm3;

Denitration efficiency: 60%;

Ammonia escape rate: less than 8ppm 

Thermal engineering control system:

Makes sure the furnace temperature, outlet flue gas temperature and exhaust gas temperature keep within a certain range to realize the stable heating of the system. For different process occasions, the measurement and control parameters are different. According to the needs of the DCS system, design the channel to communicate with the upper computer. The analog amount 4-20mA signal which PLC output needed, the switching amount state signal and the switching amount operation signal the PLC received, exchange the information with the upper computer by the PLC through the bus. 

Electrical flow chart: 

System measurement & control process parameters:

Photo of the scene: 

Customer Evaluation: