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

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

Common Tonnage: 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 pushing and pulling, with high mobility, and due to the larger grate area, the heat load is reduced, leading to more complete combustion.
Lightweight furnace wall design with a combustion chamber utilizing lightweight walls, low water cooling, high combustion temperature, and minimal solid incomplete combustion loss.
The new dust removal technology ensures that fly ash in flue gas falls back onto the grate for continued combustion, and the heating surface remains free of ash buildup, resulting in a high convective heat exchange efficiency.
The mixed scrubbing structure features high horizontal and vertical scrubbing velocities, ensuring that the heating surface remains free of ash even at low loads, resulting in high heat exchange efficiency.
The special furnace interior dust removal combines two dust removal technologies, reducing solid incomplete combustion losses, lowering the original dust discharge, and minimizing pollutant emissions.
Low-calorie fuel design with wider grate cross-sectional dimensions, enhancing the adiabatic furnace's heat storage capacity, resulting in a short and wide geometric shape of the boiler.
Corrosion and wear-resistant cast iron tube-type air preheater with new internal thread and external fin design, self-blowing to remove accumulated dust, no dust accumulation or clogging.
Wide coal quality adaptability with segmented air supply, controlling the air supply volume of each combustion section, effectively reducing mechanical incomplete combustion heat loss.