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This DZH boiler burns biomass fuels like wood chips, straw, and pellets to produce steady steam for factories and processing plants. Built with a moving grate and a rugged water-fire tube design, it handles low-grade biomass well and delivers reliable steam without complicated controls. Simple to operate and maintain, it's a practical, low-cost solution for facilities with easy access to biomass waste.
New type DZH biomass-fired steam boiler is a single drum longitudinal water and fire tube shell steam boiler, with a moving grate as its burning equipment. Both sides of the water tube wall around the furnace are radiation surfaces, while the two wings of the furnace and the thread smoke tubes inside the drum are convective heating surfaces. The furnace wall adopts a new integral trumpet-shaped ramming process with heat-resistant materials, and the boiler host is equipped with a solid guard board shell.
The boiler body features an overhead drum structure, with bilaterally symmetrical water wall tubes and headers; the drum is made of barrel and surrounding tube plate assembly welding. A spark baffle in the furnace enhances combustion efficiency. This series adopts the latest scientific research achievements such as header backwater ejection, arched tube plate and thread smoke tube, solving common problems of shell-type boilers including tube plate cracks, water wall tube bursts, low efficiency, insufficient power and poor biomass fuel adaptability.
This product uses a rapid combustion chamber, burning with wood chips, wood block, wood batten, bark, bamboo filament, clothing and bags enterprise waste, agricultural broken straw, etc.
Wood block
Coconut shell
Palm shell
Old clothes
Straw
Cassawa waste
| Item | DZH0.5-0.7-T DZH0.5-1.0-T |
DZH1-0.7-T DZH1-1.0-T DZH1-1.25-T |
DZH2-0.7-T DZH2-1.0-T DZH2-1.25-T DZH2-1.6-T |
DZH4-1.25-T DZH4-1.6-T |
|
|---|---|---|---|---|---|
| Rated evaporation capacity (t/h) | 0.5 | 1 | 2 | 4 | |
| Rated pressure (MPa) | 0.7/1.0 | 0.7/1.0/1.25 | 0.7/1.0/1.25 | 1.25/1.6 | |
| Rated steam temperature (℃) | 170/184 | 170/184/194 | 170/184/194/204 | 194/204 | |
| Feed water temperature (℃) | 20 | 20 | 20 | 20 | |
| Heating area (m2) | Body | 21.31 | 32.12/32.12/33.24 | 50.5/51.8/51.05/59.4 | 92.82/92.82 |
| Economizer | 8.28 | 10.56/10.56/27.6 | 27.6 | 69.76/33.12 | |
| Effective area of grate (m2) | 1.28 | 2.1 | 3.36 | 5.2 | |
| Fuel type | Biomass pellet, wood sawdust, bamboo chip, wood block, straw Size: < 3×3×3mm, Moisture: ≤ 30% Ash content: ≤ 5% Lower heating value: Q > 12000KJ/Kg |
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| Fuel consumption (kg/h) | ~150 | ~301 | ~602 | ~1190 | |
| Flue gas temperature (℃) | 135 ~ 145 | ||||
| Thermal efficiency (%) | 83 ~ 84 | ||||
| Weight of biggest part for transportation (t) | 8 | 12 | 15 | 22 | |
| Overall dimension of biggest part for transportation (mm) | 3228×2000×2656 | 4108×2200×2915 | 4700×2300×3270 | 5600×2550×3563 | |
The DZH biomass-fired steam boiler is widely applicable to various industries that need stable steam supply, including textile, food processing, building materials, chemical industry, papermaking, breeding, wood processing, printing and dyeing, rubber processing, garment making, leather making, light industry, as well as scenarios such as hotel supporting services, providing reliable thermal support for production and operation in these industries.
We handle every part of the process ourselves — from cutting and welding to the final checks. That way, we know exactly what goes into each boiler before it ships out.
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1. What's the main advantage of using biomass in this DZH boiler?
It lets you burn waste fuels like wood chips, straw, or agricultural pellets instead of coal. This cuts fuel costs, uses up farm or factory waste, and works great if you have local biomass supplies.
2. How does the moving grate handle different types of biomass?
The moving grate adjusts to keep fuel burning evenly, even with wet or low-grade biomass. Combined with the large furnace volume, it helps avoid clinkers and keeps combustion stable.
3. How is this biomass DZH boiler different from the DZL model?
The core difference is how fuel is fed. The DZH uses manual feeding with a moving grate, while the DZL has an automatic chain grate. The DZH is simpler and cheaper upfront, good for small to mid-sized sites with on-site staff. The DZL is fully automated, better for larger operations that want less hands-on work and continuous steam output.
4. What maintenance do I need to do to keep the grate working properly?
You'll need to clear ash and clinkers from the grate and air chambers regularly, check grate bars for wear, and keep the moving parts lubricated. Doing this prevents jams and keeps the boiler running at full efficiency.
5. Is this boiler hard to install in an existing factory?
It ships as a single, assembled unit, so you don't need complex on-site construction. You just connect the fuel feed, water lines, and exhaust. The simple design means you can get it up and running fast.
