DZL Series Coal Fire and Water Tube Boiler
Capacity: 2-10 t/h
Pressure: 1-2.5 MPa
Temperature: 170-225℃
Fuel: Bituminous coal,lean coal,anthracite
Industries: Heating, chemical, food, tobacco, textile, printing and dyeing, feed, medicine, building material, wine, rubber, hospital
The DZL series of fire and water tube boilers are horizontal, three-pass, chain grate, quick assembly boilers. The fire and water tube structure of the DZL boiler allows direct contact between the flue gas and water, enabling efficient heat transfer. After high-temperature combustion in the fire tubes, the flue gas exchanges heat with the water inside the tubes, transferring thermal energy and improving energy utilization efficiency. The boiler body is a single drum arranged vertically, with threaded smoke tubes forming the convective heating surface inside the drum, and the drum and water-cooled walls on both sides forming the radiant heating surface of the furnace. The combustion equipment adopts a lightweight chain grate, and the boiler is delivered in a complete and quick assembly form.
Efficient Heat Transfer: The water-fire tube structure of the DZL boiler enables direct contact between the flue gas and water, resulting in efficient heat transfer. This design allows the flue gas to undergo high-temperature combustion in the fire tubes and exchange heat with the water inside the tubes, effectively transferring thermal energy to the water and improving energy utilization efficiency.
Flexible Adjustment and Stable Steam Output: The combination of water tubes and fire tubes in the DZL boiler provides advantages in flexible adjustment of the combustion process and stable steam output. By adjusting the gas quantity and combustion temperature, the steam output of the boiler can be precisely controlled to meet various industrial demands. Meanwhile, the water tube structure ensures stable steam output, guaranteeing stability and reliability during production processes.
Strong Coal Adaptability: The DZL boiler is suitable for coal as the primary fuel and exhibits strong combustion adaptability. It can accommodate different types and qualities of coal, offering a wide range of applications. This allows users to choose suitable coal based on local resource availability and cost considerations to meet their energy needs.
Simple and Easy Maintenance: The DZL boiler adopts a water-fire tube structure, which is relatively simple and easy to maintain and clean. The reasonable layout of the fire tubes and water tubes facilitates the removal of combustion residues and scale, ensuring the efficient operation of the boiler. This reduces maintenance costs and workload while extending the boiler’s service life.
Model | Rated steam capacity (t/h) | Rated working pressure (MPa) | Rated steam temperature (℃) | Thermal efficiency (%) | Maximum transport dimension (m) |
DZL2-1.25-AⅡ | 2 | 1.25 | 194 | >80 | 5.30×2.40×3.40 |
DZL2-1.6-AⅡ | 2 | 1.6 | 204 | >80 | 5.30×2.40×3.40 |
DZL2-2.5-AⅡ | 2 | 2.5 | 225 | >80 | 5.30×2.40×3.40 |
DZL4-1.25-AⅡ | 4 | 1.25 | 194 | >80 | 6.50×2.70×3.60 |
DZL4-1.6-AⅡ | 4 | 1.6 | 204 | >80 | 6.50×2.70×3.60 |
DZL4-2.5-AⅡ | 4 | 2.5 | 225 | >80 | 6.50×2.70×3.60 |
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