SHX Circulating Fluidized Bed Steam Boiler

SHX Circulating Fluidized Bed Steam Boiler

  • Capacity:10 - 75 t/h
  • Working Pressure: 1.25 - 2.5 Mpa
  • Working Temperature: 194-225 degrees
  • Applicable Fuels: coal, gangue, biomass, garbage and sludge.
  • Application Industry: heating, chemical, food, tobacco, textile, printing and dyeing, feed, medicine, building materials, brewing, rubber, hospital


SHX series circulating fluidized bed(CFB) boiler can not only burn ordinary coal and biomass particles, but also can burn anthracite, lean coal, bituminous coal, coal gangue, chain slag, gas making slag and other inferior fuel as well as sulfur bearing high fuel, and can meet the requirements of environmental protection.

The product combustion chamber and the vortex separator consist of a membrane-type water-cooled wall. The vortex separator is located in the upper part of the combustion chamber, and a loopback device is arranged on the left side of the furnace chamber. In the furnace, all small particles with terminal velocity less than the velocity of the flue gas move upward with the flue gas. After entering the cyclone separator, particles larger than the cut particle size are separated, form a material seal in the back channel, and then sent back by the membrane porous semi-self-flow. The device is sent to the furnace and the hot bed material is mixed for repeated cycle combustion. The separator uses a membrane wall to form the separator skeleton and is structurally stable. The combustion device adopts a dense hood and porous form to make the wind uniform and the fluidization quality is uniform and stable. By adding limestone to the furnace, the corrosion of the equipment to sulfur can be significantly reduced and environmental protection requirements can be achieved.

Difference Between DHX And SHX

DH and SH are model codes, indicating model numbers; X indicates combustion methods. DHX is a single drum horizontal circulating fluidized bed(CFB) boiler, and SHX is a double drum horizontal circulating fluidized bed boiler. ZOZEN bolier is the former name of Energy-saving Boiler Promotion Catalog (pre-approved). The model of CFB steam-fired steam boiler is complete. It has DHX circulating fluidized bed boiler and SHX circulating fluidized bed boiler. The following is Its brief introduction.

SHX Circulating Fluidized Bed(CFB) Steam Boiler

1, DHX series circulating fluidized bed steam boiler: this type of boiler overcame two problems of high and high wear of conventional circulating fluidized bed boiler in one stroke. The use of electricity can reduce at least 30%, and the wear rate is greatly reduced. DHX series 35 ton circulating fluidized bed steam boilers are common in specifications: DHX35-1.25-W, DHX35-1.25/300-P, DHX35-1.6-AII, DHX35-2.5/400-AII and DHX35-3.82-A.

2, SHX series circulating fluidized bed(CFB) steam boiler: this boiler is the fourth generation of circulating fluidized bed(CFB) steam boiler developed by ZOZEN Bolier. It is very suitable for poor quality fuel and high sulfur fuel combustion. It adopts many patent designs, such as the separation design of the return device, the unique structure design of the separator, the design of the buried pipe and anti-wear design, etc. SHX series 35 ton circulating fluidized bed steam boilers are common in specifications: SHX35-2.78/400-A II.

Desulfurization Technology Of SHX Circulating Fluidized Bed(CFB) Steam Boiler

The bed temperature of the SHX series circulating fluidized bed boiler(CFB) is normally controlled at 850°C to 950°C. At the same time, limestone powder is added into the furnace as a desulfurizing agent according to the characteristics of coal combustion, and SO 2 is removed from combustion during the combustion process. The limestone powder has a high desulfurization efficiency in the range of 850°C to 950°C. Circulating fluidized bed boilers can achieve higher desulfurization efficiency with a combustion temperature of 850°C to 950°C. The desulfurization rate can reach 80% to 95%, and the combustion rate is about 5% higher than a pulverized coal furnace.

At the same time, the SHX series circulating fluidized bed(CFB) boiler can effectively suppress the generation of the thermal reactive NO x at 850 to 950 C, and then add the classified combustion mode into the two air, and effectively control the formation of the fuel type NO X. The emission of NO x is generally below 200m g/Nm 3.

Performance Advantages

  • 1, the loopback device patent design: The returning system adopts the membrane-type water-wall patented wall-type porous semi-self-feedback device, which makes the return material even and smooth. The return device adopts the patented technology of multi-empty semi-automatic flow return device with uniform material return.
  • 2. Unique structure design of separator: The membrane wall heats the inner lining, allows the residual carbon in the flue gas to continue to burn in the separator, does not cause coking, and improves the separation efficiency.
  • 3, buried pipe wear design: The buried pipe is welded with special angles and sizes to prevent the wear of the buried pipe. After the boiler has been running for a period of time (usually more than one year), measures such as repair welding and anti-friction bars are adopted, and the life of the buried pipe can be infinitely extended.

Technical Data

Boiler Model Boiler Capacity th Working Pressure MPA Outlet Temperature ℃ Feed Water Temperature℃
SHX10-1.25-AⅠ 10 1.25 194 105
SHX10-1.60-AⅠ 10 1.6 204 105
SHX10-2.50-AⅠ 10 2.5 225 105
SHX15-1.25-AⅠ 15 1.25 194 106
SHX15-1.60-AⅠ 15 1.6 204 106
SHX15-2.50-AⅠ 15 2.5 225 106
SHX20-1.25-AⅠ 20 1.25 194 107
SHX20-1.60-AⅠ 20 1.6 204 107
SHX20-2.50-AⅠ 20 2.5 225 107
SHX25-1.25-AⅠ 25 1.25 194 108
SHX25-1.60-AⅠ 25 1.6 204 108
SHX25-2.50-AⅠ 25 2.5 225 108
SHX30-1.25-AⅠ 30 1.25 194 109
SHX30-1.60-AⅠ 30 1.6 204 109
SHX30-2.50-AⅠ 30 2.5 225 109
SHX35-1.25-AⅠ 35 1.25 194 110
SHX35-1.60-AⅠ 35 1.6 204 110
SHX35-2.50-AⅠ 35 2.5 225 110
SHX65-1.25-AⅠ 65 1.25 194 111
SHX-1.60-AⅠ 65 1.6 204 111
SHX65-2.50-AⅠ 65 2.5 225 111
SHX75-1.25-AⅠ 75 1.25 194 112
SHX75-1.60-AⅠ 75 1.6 204 112
SHX75-2.50-AⅠ 75 2.5 225 112

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