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Professional CFB Boiler Low Environmental Impact Simple Pretreatment System

Categories CFB Boiler
Brand Name: Dehai Boiler
Model Number: CFB Boiler
Certification: ASME
Place of Origin: China
MOQ: 1 Set
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 10 Sets / Year
Delivery Time: 150 Days
Packaging Details: Seaworthy packing
Pressure: High Pressure
Structure: Structure
Standard: GB, ASME
Manufacturer: Grade A Manufacturer
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Professional CFB Boiler Low Environmental Impact Simple Pretreatment System

Industrial Food Use Coal Fuel CFB Coal Heat Boiler circulating fluidized bed boilers

CFB Boiler Low environmental impact


1. As for temperatures inside the furnace, while a regular boiler reaches 1,400-1,500°C, temperatures inside a CFB are in the low range of 800-900°C, thus inhibiting the generation of thermal nitrogen oxides (NOx whose production is dependent on combustion temperature).

2. Further, with the use of two-stage combustion, NOx generation can be limited to less than 100 ppm. When limestone is supplied to the furnace, furnace desulfurization can take place as illustrated by the following chemical equations.


Advantage

1. High burning efficiency, good gas and coal particle mixing,the unburned big particles can be recycled to the hearth and be reused efficiently.
2. De-sulfur efficiency is high,and the burning temperature is low,so,the NOX emission is low.
3. The load can be adjusted in a wide range and with a high speed.
4. The pretreatment system is simple(comparing to the coal powder boiler),the coal residue can be synthetically used.

Main Specifications of Circulation Fluidized Bed Boiler


boiler capacity
items

35t/h75t/h130t/h
rated steam capacity t/h3575130
rated working pressure Mpa3.823.825.3
rated steam temperature℃450450450
feed water temperature ℃105130150
combustion methodCirculation fludized bed combustionCirculation fludized bed combustionCirculation fludized bed combustion
applicable coalCoalCoalCoal
design the fuel low level caloric1267081176520
the coal consumption at full load operation(Kg/h)90452041738792
designed efficiency %88.68888
exit gas temperature ℃150145150
De-sulfur efficiency %888888
fuel particle requirement mm≤10≤8≤10
lime stone particle requirement mm≤2≤2≤2
drum central line elevation mm250002830033000
the highest point elevation l mm267503395054270

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