Coal Boiler

Product capacity: 0.3-50t/h | 300-35000kw | 30-3000hp
Working pressure: 0.1Mpa-3.8Mpa 1bar-38bar
Available fuel: Coal, wood, biomass, jhute, coconuts, palm shells, ricehusk, solid waste
Available industries: For heating, drying, steam turbine, in foods, beverage, textile, paper, feed mill, chemical, edible oil, rice mill, refinery, packaging, laundry, hotel...

Key selling points:DZL automatic coal boiler, horizontal water-tube and fire-tube structure, also could burn coal wood biomass husk palm shells bagasse...


Coal Fired Boiler


Certified by ASME, CE, ISO, EAC, DOSH, TUV, BV, ensuring high quality and compliance with international standards.

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Popular model: DZL coal fired boiler automatical chain grate coal boiler

DZL automatic coal boiler, with chain grate combustion device, adopt automatic coal feeding system, inner fire-tube & water-tube structure, wing-shape flue and flue gas three pass design, higher thermal efficiency than traditional manual coal boiler.

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Coal Fired Boiler System

Complete boiler system need some other accessories for help boiler work successfully. Introduce some important accessories as following:

1. Water softener ②, Remove Mg+,Ca+ in the water and improve water quality, prevent hurt to boiler tube, entend the boiler using life time.

2. Economizer ⑧, use exhaust gas to heat inlet-water then reduce exhaust gas temperature, which improve boiler efficiency.

3. Dust collector ⑨, bag filter, Remove the dust and ash in exhaust gas to protect environment and reduce pollutions.

4. Forced fan & Induced fan ⑦, Blow clean air into the boiler and promote exhausted gas out, ensure the air circulation of the whole system.

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Compare Manual & Automatic Boiler

DZH series is kind of manual coal feeding boiler, DZL series is kind of automatic coal feeding boiler.

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Related: Vertical Coal Boiler

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> How to Choose A Suitable Boiler

1. Basic Boiler Information For Your Project

Fuel options: Gas Lpg Diesel Heavy-oil Biogas Dual-fuel, Electricity, Coal, Charcoal, Wood, Biomass, Pellets, EFB Palm-kernel-shells, Rice-husk, Peanut-shells, Cashew-nuts-shells, Sunflower-seeds-shells, Bagasse, etc.

Thermal capacities options: 100kg-50000kg, 70kw-35000kw, 5hp/bhp-3000hp/bhp, (million-btu, pounds/lbs, liters,etc)

Heat medium options: saturated/superheated steam, hot water, thermal oil.

Structure options: Fire tube boiler, water tube boiler, water-tube fire-tube boiler

Layout options: Vertical boiler, Horizontal boiler.

Operating-mode options: Automatic, manual

Note: please feel free to send all requirements, we could help you better.

2. Calculating Running Cost

Specific consumption analysis report

Different types boiler running consumption comparison analysis report

(Note: Report is based on your local energy source price)

3. Boiler Accessories (essential or optional)

Control panel, Water treatment device, Economizer, Conderser, Heat recovery unit, Deaerator, Solid fuel burning combustions stoker (chain-grate, reciprocating-grate, travelling-grate, fixed-grate), Steam header, Pumps, Water level gauge/sensor, Pressure guage/sensor, Safety valves, etc.

Note: Any special request, please send all details.

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Technical Parameter

DZ Series Steam Boiler Technical Parameter Table
Model Rated capacity(t/h) Rated pressure (Mpa) Rated steam temperature(℃) feed temperature(℃) Thermal efficiency(%) Boiler water volume(m³) Exhaust temperation(℃) Fuel comsumption(Kg/h) max transportation weigh(t)
DZH1 1 1.0/1.25/1.6 184/194/204 20/104 >82 3.15 127.25 192.32 9
DZL1 1 1.0/1.25/1.6 184/194/204 20/104 >82 3.15 113.34 190.42 13.5
DZH2 2 1.0/1.25/1.6 184/194/204 20/104 >82 4.75 126.41 386.47 15
DZL2 2 1.0/1.25/1.6 184/194/204 20/104 >82 4.77 106.34 393.77 22
DZH4 4 1.0/1.25/1.6 184/194/204 20/104 >82 7.7 137.25 782.29 18.5
DZL4 4 1.0/1.25/1.6/2.5 184/194/204/226 20/104 >82 8.2 124.49 756.89 27.6
DZH6 6 1.0/1.25/1.6/2.5 184/194/204/226 20/104 >82 7.4 146.83 1169.57 25
DZL6 6 1.0/1.25/1.6/2.5 184/194/204/226 20/104 >82 8.1 137.29 1148.68 35
DZL8 8 1.0/1.25/1.6/2.5 184/194/204/226 20/104 >82 9.6 141.06 1602.44 38
Note: Parameter is for reference only, if any changes should follow the factory technical data.

Our Supply Equipment List

Coal Feeder
Grate Speed Reducer
Slag Remover
Water Treatment Device
Water Pumps
Water Tank
Forced/Induced Fan
Smoke Clean Equipment

Advantage of DZL Boiler

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Chain grate/Reciprocating grate

Auto-feeding type burning system, avoid problem of air leakage, fuel leakage and uneven ventilation. Easier operation compared to traditional grate.
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Fire tubes & Wing shape structure

Strengthening heat transfer, eliminating welding stress, enhance heat transfer bility, reduce heat stress of pipeline seam, prevent pipeline cracking.
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Security guaranteed & Automation

With a set of alarm,protection and security guaranteed, 100% safety. Control cabinet use siemens elements, trustable quality & control strictly
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Economizer & Dust collector device

Reuse waste heat in exhaust gas, energy saving devide (economizer); Remove the dust and ash, protect envrionment and reduce pollution

FAQ of Coal Boiler

Question: Can it burn coal and wood waste together?

Answer: Yes, it can burn coal, wood waste. Besides, burn biomass, bagasse, palm shells, coconuts, husk...

Question: Do you have DZG boiler?

Answer: Yes, "DZG" mean fix grate boiler, the biggest difference with "DZL" is combustion grate device. DZL is automatic chain grate boiler, DZG is manual type fixed grate boiler. If you interest more, send message on website.

Question: How we install the boiler after buy it?

Answer: Sir, we supply whole life service for boiler, before-sale service & on-sale service & after-sale service. We have professional service team for installation and boiler commissioning and training workers.

Question: Do you have SZL double drums coal water tube boiler?

Answer: Yes, SZL series coal fired water tube boiler, suitable in capacity 10ton-50ton, if you have interest, send message to

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