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DHW Biomass Boiler
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DHW Biomass Boiler

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DHW Biomass Boiler

Product Description

DHW series biomass boiler is single drum horizontal inclined reciprocating grate boiler, the reciprocating grate’s angle of inclination is 15°. The furnace is membrane wall structure, furnace outlet has slag-cooling tubes, and furnace outlet flue gas temp is lowered to below 800℃, lower than the melting point of fly ash, to prevent the fly ash from slagging on the superheater. After the slag-cooling tubes, there are high-temperature superheater, low-temperature superheater, economizer and air preheater, there is spray type desuperheater between two superheaters. The flue gas temperature after air preheater is 160℃.

DHW series biomass boiler can generate low pressure steam with rated evaporation capacity of 10-65 ton/h and rated pressure of 1.25-9.8 MPa. The designed thermal efficiency is up to 82%.

Features:

1. Since biomass fuel is apt to slagging, reciprocating grate’s ceaseless movement avoids slagging.
2. Biomass fuel features small density and small ash particle, which is apt to flow with the flue gas, so we design high furnace and small flow velocity.
3. Secondary air ensures that the fuel’s standing time in the furnace makes the fuel burn out in the furnace.
4. The arch is used to strengthen the mixture of airflow in the furnace and organize the thermal radiation and hot flue gas flow in the furnace.
5. To avoid soot formation, the pitch of convection heating surface shall be in-line arrangement.
6. The convection bank has acoustic wave soot blower, which may remove the soot, and cleaning door is equipped.

Application:

DHW series biomass boilers are widely used in the electricity production in various industries, such as chemical industry, paper making industry, textile industry, food industry, pharmaceuticals industry, heating industry, construction industry, etc.

Technical Data of DHW Biomass Steam Boiler
 Model Rated Evaporation Capacity (t/h) Rated Steam Pressure (MPa) Feed Water Temperature (°C) Rated Steam Temperature (°C) Radiation Heating Area (m2) Convection Heating Area (m2) Economizer Heating Area (m2) Air Preheater Heating Area (m2) Active Grate Area (m2) Flue Gas Temperature (℃)
DHW15-2.5-400-SW 15 2.5 105 400 132.7 131.3 265.8 122.6 15.2 158
DHW30-4.1-385-SW 30 4.1 105 385 168.5 150.9 731.8 678.3 23.8 141
DHW35-3.82-450-SW 35 3.82 105 450 152 306.4 630 693.3 31.4 160
DHW38-3.5-320-SW 38 3.5 105 320 238.6 623.6 470.8 833.5 41.8 160
DHW40-5.0-360-SW 40 5 105 360 267.8 796.4 1024.5 591 43.6 156
DHW50-6.7-485-SW 50 6.7 105 485 368 847.5 951.1 1384 58.4 150
Remark 1. Design thermal efficiency is 82%.

 

DHW20-Model

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Contact Us 

 

Taishan Group Tai’an Boao International Trade Co., Ltd.

Tel:+86-0538-6619632   

E-mail:boao@taishanboao.com

Add:No. 1169 Beitianmen Street, High-tech Development Zone,
          Tai'an City, Shandong Province

Taishan Group Tai’an Boao International Trade Co., Ltd.

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