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Steam Generators/Steam Boilers

Coal Water Slurry Fuel (CWSF) Steam Boiler-Fluidization Suspension Type

Coal water slurry fuel (CWSF or CWS or CWF) is a fuel which consists of fine coal particles suspended in water.resence of water in CWS reduces harmful emissions into the atmospher ...
Product Details

coal-water-slurry-boilers

Coal water slurry fuel (CWSF or CWS or CWF) is a fuel which consists of fine coal particles suspended in water.resence of water in CWS reduces harmful emissions into the atmosphere, makes the coal explosion-proof, makes use of coal equivalent to use of liquid fueland gives other benefits.  CWS consists of 55-70% of fine dispersed coal particles and 30-45% of water. Coal particles suitable for diesel fuel replacement typically need to be less
than 20 micrometres in diameter.

Coal water slurry steam boilers adopt the second generation patent fluidization suspension combustion technology. It increase the thermal efficiency of coal water slurry boiler to 89% and avoid the damage of nozzle for coal water slurry atomization combustion burner.

Advantage Feature of Coal Water Slurry Steam Boilers

  1. Environment friendly, energy saving and, high efficiency: coal combustion efficiency reach above 98%., thermal efficiency reach above 85%
  2. Wide and simple load adjustment range: load range can adjust from 35% to 100%, economical choice.
  3. Covering area Saving: Coal-water slurry and coal power transport in airtight canning,  no dust pollution, no need coal storage yard and slag yard, improve the use ratio of land, save 50% land area.
  4. Low fuel cost with high intelligent automatic control: save human resource, coal fired boiler need 6-7 worker coal-water only need two workers, save fuel beyond 20%. Improve the sanitary condition and alleviate worker labor. Coal water slurry boiler has become an ideal substitute for oil and gas fired steam boiler.
  5. Low temperature combustion: Coal water boiler can heat up to and maintain 900℃-1200 ℃ in a very little
    time, which avoid the Incomplete combustion during the low temperature period, also avoid producing the NOx of oil fired boiler  when temperature is above 1300℃
  6. Clean flue gas emission:CWS boiler dust emission concentration is about 100mg/Nm3 . which is 1/2 of the national emission standard 200 mg/Nm3. ash can be used as material of building and cement after closed dry ash collection system.

Fluidization Suspension Combustion CWSF Boiler Feature

  1. Stable operation and low emission:  Coal-water fluidization system realizes the low temperature combustion; avoid coking, unstable operation, poor security problem of Coal-water atomizer system.
  2. High efficiency: cyclic burn cluster of coal-water particle, achieve a high efficient performance.
  3. No need for slag remover: fluidization combustion mode blow ash through the flue duct to the dust filter
  4. Long life span water coal slurry pelletizer machine: High quality atomization coal water slurry burner can use 1500h-2000h, but fluidization coal water slurry boiler do not need vulnerable and short lifespan burner, which means long life span.
  5. Low cost for desulfuration: Use limestone and silica sand as medium material cooperate with low temperature combustion technology realize the direct desulfuration during Coal-water combustion, which is simple structure and low cost.
  6. Low consumption for medium material: recycle of limestone increase the use ratio which reduce the supply of limestone and medium material. This system also increases the efficiency.
  7. Wide Load Adjustable Range: the boiler can adjust for different type Coal-water fuel and load range can be set 30% to 100%,
  8. Low cost and requirement for Coal-water: Wide adaptable  for Coal-water fuel reduces the requirement for Coal-water manufacture, which reduce the Coal-water cost.
  9. Simple and stable accessory: SHFS series (CWS fluidization system) do not need expensive burner, fault liability CWS atomization gun, complex high pressure air and CWS system, which make the whole system simple and reliable.
  10. PLC control system

Fluidized Bed Suspension Coal Water Slurry Steam Boilers System

CFB-Fluidized-Bed-Coal-Water-Slurry-Steam-Boilers-2

General Drawing of Fluidized Suspension Coal Water Slurry Steam Boilers

CFB-Fluidized-Bed-Coal-Water-Slurry-Steam-Boilers

Parameter Table of Coal Water Slurry Steam Boilers

Item SHFS4-1.25-J SHFS6-1.25-J SHFS10-1.25-J SHFS20-1.6-J SHFS35-3.82-J
Rated Evaporation t/h 4 6 10 20 35
Rated Working Pressure Mpa 1.25 1.25 1.25 1.25 1.25
Steam Temperature °C Saturated Saturated Saturated Saturated 450
Combustion Mode Chamber Combustion Chamber Combustion Chamber Combustion Chamber Combustion Chamber Combustion
Applicable Fuel Coal-water Coal-water Coal-water Coal-water Coal-water
Fuel consumption kg/h 710 915 1615 2920 5713
Boiler Heating Area m2 145 208 246 469 /
Economizer Heating Are m2 60.3 72.4 206 351 /
Exhaust Gas Temperature °C 166 163 157 157 /
Thermal Efficiency % 85.8 85.9 90.8 88 /
Transportation Weight t 31.5 35.5 Packaged Packaged /
Transportation Size mm 6300*3100*3540 7100*3400*3540 Packaged Packaged Packaged

 

Company Profile

Romiter Group concentrating on supply high efficient and high intelligent boiler for customer. Main products include wood pellet hot water boilers, wood pellet steam boiler, wood pellet burner, coal fired thermal oil heater, diesel oil fired thermal oil heaters, biomass steam generator(wood dust, corncob, bagasse, rice husk, palm kernel shell), coal fired hot air generator, wood pellet hot air furnace, electric steam generator, coal fired steam generator, coal water slurry steam generator, diesel oil or gas steam generator, thermal oil steam generators, heat recovery steam generator (HRSG).

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