The SHW series double-drum horizontal reciprocating grate coal-fired boilers adhere to the design objectives of safety, stability, and environmental protection, and are suitable for high-efficiency energy-saving models burning medium and low calorific value coal. The boilers have stable combustion, high operating efficiency, sufficient output, low initial dust emission concentration, and easy operation and maintenance. They have generated excellent corporate and social benefits in industries such as pharmaceuticals, chemicals, food, and metallurgical machinery. The boilers have strong internal natural circulation power and a strong self-protection capability during shutdown. They have ideal volume heat load and grate heat load, achieving optimized comprehensive performance of the boilers.

Application Fields: Pharmaceutical factories, chemical plants, food factories, metallurgical machinery factories, mining industry, steel mills, paper mills, etc.

Common Tonnages: 20-ton SHW double-drum reciprocating grate boiler, 35-ton reciprocating grate coal-fired boiler, 75-ton reciprocating grate boiler

The double-pushed grate arrangement ensures even force distribution during grate pushing and pulling, with high mobility. Additionally, with a larger grate area, the heat load is reduced, leading to more complete combustion.

Lightweight furnace wall design features a lightweight lining, with minimal cooling water, high combustion temperatures, and minimal solid incomplete combustion losses.

The new dust removal technology allows fly ash in flue gas to fall back onto the grate for continued combustion, and the heating surface remains free of ash buildup, resulting in high convective heat transfer efficiency.

The mixed flush structure features high transverse and longitudinal flushing velocities, ensuring no ash accumulation on the heating surface even at low loads, resulting in high heat exchange efficiency.

Our furnace dust removal feature integrates two dust removal technologies, reducing solid incomplete combustion losses and lowering the original dust emissions, as well as minimizing pollutant discharge.

Low-heat-value fuel design with wider grate cross-sectional dimensions, enhancing the adiabatic furnace chamber's heat retention capacity, resulting in a boiler with a short and wide geometric shape.

Corrosion and wear-resistant cast iron tube-type air preheater with new inner threaded and outer fin design, self-blowing for accumulated dust, no dust accumulation or blockage.

Wide range of coal quality, segmented air supply, controlling the air supply volume in each combustion section, effectively reducing mechanical incomplete combustion heat loss.