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Coal Hot Water Boiler

Product capacity: 100kw-35000kw 10,0000Kcal-24millionKcal
Working pressure: 0.1Mpa-3.8Mpa 1bar-38bar
Available fuel: Coal, wood, biomass, palm shells, rice husk, waste fabric, jhute, solid fuel
Available industries: Heating Water, Center Heating For Buildings, Greenhouse, Hospital, School, Hotels, Drying, Washing....

Key selling points:DZL automatic water-fire tube design solid fuel boiler, could burn coal wood biomass husk palm shells. Sufficient steam power, high quality steam/water for heating


Coal Hot Water Boiler

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

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Most Popular model: DZL coal heating boiler automatic chain grate 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. 

Themal Capaity in 0.7MW-28MW Automatic Coal Heating 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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Related: DZH Manual Feeding Coal Boiler

DZH series is kind of manual coal feeding boiler, need labor works to feeding coal into stoker.

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Related: Vertical Coal Boiler

Small coal hot water boiler in 41kw-1400kw. 

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Technical Parameter

DZ Series Hot Water Boiler Technical Parameter Table
Model Rated capacity(MW) Rated pressure (Mpa) Rated output temperature(℃) Rated return water temperature(℃) Thermal efficiency(%) Fuel comsumption(Kg/h) Exhaust temperation(℃) max transportation weigh(t)
DZL0.7 0.7 0.7 95/115 70 >80 181 <130 10
DZL1.4 1.4 1.0  95/115 70 >80 370 <130 22.5
DZL2.8 2.8 1.0  95/115 70 >80 727 <130 26.5
DZL4.2 4.2 1.0  95/115 70 >80 1080 <130 35.7
DZL5.6 5.6 1.0  95/115 70 >80 1390 <130 40.2
DZL7.0 7.0  1.0  95/115 70 >80 1726 <130 25.6
DZL10.5 10.5 1.0  95/115 70 >80 2530 <130 18
DZL14 14 1.0  95/115 70 >80 3390 <130 19.9
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

Advantages of DZL Boiler

DZL boiler chain grate

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.
DZL coal boiler structure

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: What's accessories do you supply ?

Answer: Including control panel, coal feeder, chain grate, grate reducer, water treatment device, water pumps, dust collector, economizer, chimney, water level gauges & pressure gauges.

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.

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