DZL series coal fired boiler is single drum water tube and fire tube boiler, combustion equipment is chain grate. Water wall tubes at left and right sides of furnace are the radiated heating area. the two wings at furnace and screw fire tube in the drum are convection heating area. This boiler uses the upper drum, water wall tube and head are in symmetrical arrangement mode. The drum is welded assembly by cylinder and front back tube plate. This furnace structure in reasonable arrangement and high efficiency. This series boiler adopts several environmental protect measures (bag dust collector, double towers desulfurization, etc.) to meet the national emission requirement.
This boiler uses the new scientific achievement, such as arch tube plate, screw fire tube to solve the problem of tube plate flaw, water wall tube explosion, low efficiency, insufficient output, poor adaptability of coal, improve the heat transfer.
Unlike ordinary boiler solutions, our DZL series coal & biomass fired boiler is engineered for stable operation, high thermal efficiency, and long service life, making it the ideal choice for industrial production, central heating and various demanding applications. Whether you’re in textile, food processing, paper making, or chemical industry, you don’t need to guess which boiler model fits your site. Just tell us:
What material are you using as fuel?
What’s your required steam/hot water output and hourly capacity?
What’s your budget range and site installation conditions?
Our engineers will match you with a boiler solution that delivers maximum ROI — no overpaying for features you don’t need. Next, let’s see the detailed specifications and application scenarios of our DZL series boilers. Learn more about each model’s performance parameters and customized services.
DZL series boiler features wide fuel adaptability, capable of burning various coal types and a full range of biomass fuels, including wood chips, rice hull, bagasse, straw, peanut shell, cotton stalk, coconut shell and more.
Biomass fuel is a widely available, renewable green energy with low ash content and near-zero sulfur emissions.
Compared with traditional coal-fired boilers, biomass fuel offers lower costs, drastically reducing your long-term operating expenses.
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It adopts fast loading structure, compact structure and small floor area.
The boiler body is fully installed, the installation workload is small and the installation period is very short.
There is push-pull type damper ash removal device. The damper adopts Heat-resistant cast iron finishing seal structure, thus the secondary combustion distortion and air leaking in the grate is effectively prevented.
Adopting the patent technology of "double-wind-gas dust", the boiler is safe and reliable.
Using biomass fuel special hopper, feeding is smooth and reliable.
The operation of the boiler is simple and the cost of ignition is low.
The boiler load regulation range is large (theoretically 0-110%), and the adjustment is convenient.
The original dust concentration of the boiler is low.
DZL series coal biomass fired steam boiler is a safe and high efficiency heating equipment with full automatic control system. It is a horizontal type fast assembly fire tube boiler with three pass structure.
Model and performance parameters of DZL Series Coal Biomass Fired Boiler, for reference only.
| Model | Rated Evaporation Capacity (t/h) | Rated Pressure(MPa) | Rated Steam Temperature(℃) | Inlet Water Temperature(℃) | Coal Consumption (Kg/h) | Thermal Efficiency (%) | Overall Dimension L*W*H（mm） |
| DZL1-0.7/1.0/1.25-AII | 1 | 0.7/1.0/1.25 | 170/184/194 | 20 | 151 | 82 | 5100×2200×3000 |
| DZL2-0.7/1.0/1.25-AII | 2 | 0.7/1.0/1.25 | 170/184/194 | 20 | 302 | 82 | 5500×2300×3300 |
| DZL4-1.25/1.6-AII | 4 | 1.25/1.6 | 194/204 | 20 | 600 | 82 | 6600×2600×3600 |
| DZL6-1.25/1.6-AII | 6 | 1.25/1.6 | 194/204 | 20 | 810 | 82 | 7500×2900×3800 |
| DZL8-1.25/1.6-AII | 8 | 1.25/1.6 | 194/204 | 20 | 1150 | 82 | 8100×3100×3800 |
| DZL10-1.25/1.6-AII | 10 | 1.25/1.6 | 194/204 | 70 | 1350 | 82 | 7700×3200×3600 / 8600×3000×2600 |
| DZL15-1.6/2.5-AII | 15 | 1.6/2.5 | 204/226 | 70 | 2200 | 83 | 10000×3240×3540 / 12000×3200×3080 |
| DZL20-1.6/2.5-AII | 20 | 1.6/2.5 | 204/226 | 70 | 3160 | 83 | 11000×3240×3540 / 14000×3200×3080 |
| Note: 1.Parameter is for reference only, if any changes should follow the actual drawings. 2.Available fuel:coal, lower heating value: Q≈21,000 KJ/Kg. |
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| Model | Rated Evaporation Capacity (t/h) | Rated Pressure(MPa) | Thermal Efficiency (%) | Fuel Type | Fuel Consumption (Kg/h) | Overall Dimension L*W*H（mm） |
| DZL1-0.7/1.0/1.25-T | 1 | 0.7/1.0/1.25 | 82 | Biomass | 200 | 5100×2200×3000 |
| DZL2-0.7/1.0/1.25-T | 2 | 0.7/1.0/1.25 | 82 | Biomass | 400 | 5500×2300×3300 |
| DZL4-1.25/1.6-T | 4 | 1.25/1.6 | 82 | Biomass | 800 | 6600×2600×3600 |
| DZL6-1.25/1.6-T | 6 | 1.25/1.6 | 82 | Biomass | 1200 | 8200×2900×3800 |
| DZL8-1.25/1.6-T | 8 | 1.25/1.6 | 82 | Biomass | 1600 | 8100×3100×3800 |
| DZL10-1.25/1.6-T | 10 | 1.25/1.6 | 82 | Biomass | 2010 | 7700×3200×3600 / 8600×3000×2600 |
| Note: Parameter is for reference only, if any changes should follow the actual drawings. | ||||||
DZL series coal & biomass fired steam boilers are widely applied in various industrial fields, featuring stable operation, high thermal efficiency and environmental friendliness. Explore our successful project cases and real client feedbacks.
"We needed a boiler that meets our local environmental regulations, and this DZL biomass model delivered perfectly. The independent air chamber ensures clean combustion, and the low noise level is a huge plus for our on-site workers. Maintenance is simple too—our team can handle basic checks without external support."
"The flexibility to switch between coal and biomass is a game-changer for us—we adjust based on fuel prices to maximize savings. The arched tube plate design is robust, and we’re confident it will have a long service life. The after-sales team was responsive when we had questions during installation."
Here are the most common questions from our global customers about DZL coal & biomass fired boilers, with professional answers for your reference.
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