Introduction

> Industrial Coal Boiler
Coal fired boiler is a steam or hot water boiler that uses coal as the main fuel. Coal is burned in the furnace, and the heat generated is transferred to water through heating surfaces to produce steam or hot water for industrial use.
Offering stable operation, simple structure, and strong fuel adaptability. They are suitable for long-time continuous operation in industrial plants.
Feeding system: manual, automatic
Structure: fire tube, water tube
Type: vertical, horizontal
Combustion: coal charcoal wood biomass
LHS LSS Series Solid Fuel Coal Fired Boiler
Vertical steam/hot water boiler, widely use in hot water heating system, small factory production heating drying, commercial laundry.
DZL Series Coal Chain Grate Steam Hot Water Boiler
Automatic feeding coal fired boiler, water-tube fire-tube boiler.
DZH Series Manual Coal Fired Boiler
Horizontal structure water-tube fire-tube boiler. With travelling grate / fixed grate stoker.
SZL Series Water Tube Coal Boiler
Water tube boiler with double drums. water membrane wall design boiler. larger combustion furnace. Combustion use chain grate or reciprocating grate stoker.
> Coal Boiler Features
1. Wide fuel adaptability: Compatible with bituminous coal, anthracite, lignite, and coal briquettes
2. Stable combustion: Equipped with chain grate or reciprocating grate for continuous and uniform fuel burning
3. High thermal efficiency: Optimized furnace design and heat transfer surfaces improve efficiency and reduce coal consumption
4. Durable structure: Heavy-duty steel construction ensures long service life under continuous operation
5. Flexible capacity range: Available in various steam capacities and pressure ratings to meet different industrial demands
> One Stop Boiler Solution
We offer a one-stop boiler solution including boiler, auxiliary systems, control, and commissioning support, ensuring efficient and reliable operation.
Main Accessories & Systems:
PLC control panel with safety interlock
Boiler water treatment system
Economizer for heat recovery
Dust collection system
Slag removal system
FD fan and ID fan
Steam header and pipeline accessories
Pressure gauges, level gauges, valves, and instruments
Boiler System

Chain Grate / Reciprocating Grate
Fitted with either a chain grate or reciprocating grate, suitable for various types of solid fuels such as coal, biomass, or wood, ensuring full combustion and stable performance.
Water Softener
A complete water treatment system is included to remove hardness and prevent scale formation, protecting the boiler and improving efficiency.
Security guaranteed & Automation
Multiple safety and monitoring devices — pressure gauge, water level gauge, temperature sensor, and automatic safety protection system — ensure safe and reliable operation.
Economizer for Energy Saving
Equipped with a high-efficiency economizer to utilize waste heat from flue gas, reduce fuel consumption, and improve overall thermal efficiency.Technical Parameter

| DZ Series Coal 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. | |||||||||
Boiler Accessories List

About us

Yuanda Products
steam boiler, steam generator, hot water boiler, thermal oil heater boiler, hot air furnace, waste incinerator.
Various Structure
vertical, horizontal, fire tube boiler, water tube boiler, coils heater boiler, water membrane wall structure, sing drum, double drum...
Application
widely in all industries productions heating drying process, building central heating system, electricity generation.
About us
Yuanda Boiler Company established in 1956, qualified by ISO, CE, ASME, EAC, DOSH, and CRN, ensuring safety, reliability, and quality.
Yuanda Service

We provide tailored boiler solutions. Our team shares catalogues, evaluates your working conditions, and recommends the most suitable model for your needs.
✅ Design & Manufacture
Customized boiler design and system diagram. High-standard manufacturing with strict quality control, certified by ISO, CE, ASME, and more.
✅ Boiler Foundation Preparation
Complete foundation drawings, piping layout, and operation documents to ensure smooth installation and operation.
✅ Engineer Service
On-site guidance for installation and commissioning. Professional training for operators to ensure safe and efficient boiler operation.
✅ After-Sales Support
24/7 online technical assistance, spare parts supply, and regular maintenance services — ensuring long-term reliable performance.
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