Horizontal Chain-Grate Coal-Fired Thermal Oil Boiler

The horizontal chain grate coal fired thermal oil boiler is a highly efficient and energy-saving industrial thermal oil boiler designed for continuous heat supply in various industries. This coal fired thermal oil boiler adopts an advanced chain grate combustion system, ensuring stable operation, high thermal efficiency, and low fuel consumption.

As a reliable hot oil boiler system, it uses coal or biomass fuel to generate heat, which is transferred through circulating thermal oil to meet industrial heating demands. With its robust structure and optimized design, this chain grate thermal oil boiler is widely used in large-scale production environments.

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1. Product Description

The horizontal chain grate coal fired thermal oil boiler features a compact horizontal structure combined with a mechanical chain grate system.

The boiler adopts a multi-layer coil heat exchange structure, ensuring sufficient heating surface and efficient heat transfer.
Equipped with a large combustion chamber, it allows full fuel combustion and stable output.
Thechain grate system enables automatic coal feeding and continuous combustion.
Designed with a circulating oil pump system, ensuring stable high-temperature heat transfer.

This industrial thermal oil boiler supports various fuels such as bituminous coal, lignite, and biomass, making it flexible for different energy needs.

2. Product Features & Advantages

The boiler adopts self-developed convection heating surface technology combined with full-return flue gas absorption technology, featuring large heating area, strong load adaptability, and high thermal efficiency.
The combustion chamber uses a chain grate structure with a rear arch to extend the combustion time of fuel and improve combustion efficiency.
Equipped with an ash slag removal system, which makes ash cleaning convenient. After the ash slag is discharged into the slag pit, the dust content in the exhaust gas is low, greatly reducing the bottom pressure of the boiler room.
The furnace body uses insulation supports and lightweight high-efficiency insulation materials, reducing heat loss. The combustion chamber adopts double-layer steel plates filled with insulation materials, providing excellent insulation performance. The outer surface temperature is close to the ambient temperature (below 50°C).
Multiple temperature and pressure measuring points are installed on the boiler to monitor the operating status. It also features automatic ignition controlandemergency venting ports, ensuring multiple safety protections.
Uses secondary air distribution technology, achieving high thermal efficiency, strong output, and excellent overload capability, meeting users’ high-load industrial requirements.
Significant energy-saving performance, which can save about 10–15% compared with similar products.
High efficiency and strong output, capable of meeting various industrial overload operation requirements.

3. Applications & Use Cases

The horizontal chain grate coal fired thermal oil boiler is widely used in various industries requiring stable and high-temperature heat supply:

Main Applications:

Chemical Industry – reactors, distillation systems
Textile Industry – dyeing, printing, drying
Plastic & Rubber Industry – molding, extrusion
Food Industry – frying, baking, processing
Building Materials – asphalt, bitumen heating
Pharmaceutical Industry – sterilization and processing

It is especially suitable for processes such as:

Hot press machines
Heat exchangers
Drying systems
Oil tank heating
Resin and adhesive production

4. Technical Parameters

Item	Unit	YLW ( ) MA
Heat Supply	10⁴ kcal/h	1200	1400	1600	1800	2000	2200	2400	2700	3000	3300	3600	3900
Rated Thermal Power	kW	14000	16300	19000	21000	24000	25600	28000	31500	35000	38500	42000	46000
System Thermal Efficiency	%	86.47	85.98	86.23	85.74	85.81	85.92	86.18	86.23	86.42	86.02	86.21	85.69
Rated Working Pressure	MPa	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Maximum Operating Temperature	°C	300	300	300	300	320	320	320	320	320	320	320	320
Furnace Volume	m³	13.2	18.4	20.8	22.5	23.3	27.5	32.8	34.7	36.1	37.8	39.3	41.5
Circulating Oil Flow	m³/h	800	900	1000	1000	1000	1000	1200	1200	1600	1600	1600	1800
Main Pipe Diameter	DN	400	400	400	400	450	450	500	500	500	500	500	600
Total System Installed Power	kW	407	497	580	580	712	743	743	805	1055	1075	1075	1135
Applicable Fuel		Coal
Overall Dimensions(LWH)	MM	13176	15090	17560	18433	18720	20720	16545	16545	12542	12542	13567	13567
		4306	4950	4950	4950	4950	4950	4950	4950	8062	8062	9020	9020
		6875	6875	6875	6875	6875	6875	9680	10545	9764	10520	9850	11200

5. Conclusion

In summary, the horizontal chain grate coal fired thermal oil boiler is an ideal industrial heating solution that combines high efficiency, energy saving, and reliable performance. With its advanced chain grate thermal oil boiler design and wide fuel adaptability, it is suitable for diverse industrial applications.

Choosing this coal fired hot oil heater ensures long-term operational stability, reduced energy costs, and improved production efficiency.

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