Knowledge popularization of coal-fired hot blast stove combustor

When understanding the working principle of coal-fired hot blast stove, the main working parts must be clarified. The combustion chamber and heat exchanger of the hot blast stove are integrated. All-steel multi-layer sleeve structure is adopted. The lower part of the furnace core is the combustion chamber, and the upper part and the periphery are circular heat exchangers. Both air and flue gas are returned in three ways, and heat exchange is performed on each way. In order to improve the thermal efficiency, the multi-head spiral groove heat transfer technology and turbulent flow principle are used to reduce the thickness of the laminar flow, so that the air and flue gas continuously exchange the rotation direction during the movement, which greatly improves the heat transfer effect.

The combustion chamber and heat exchanger of the hot blast stove are integrated. All-steel multi-layer sleeve structure is adopted. The lower part of the furnace core is the combustion chamber, and the upper part and the periphery are circular heat exchangers. Air and flue gas are double circuits, and heat exchange is performed on each circuit. In order to improve the thermal efficiency, the multi-head spiral groove heat transfer technology and turbulent flow principle are used to reduce the thickness of the laminar flow, so that the air and flue gas continuously exchange the rotation direction during the movement, which greatly improves the heat transfer effect.

The main working process of coal-fired hot blast stove: coal produces high-temperature flue gas in the stove and enters the flue ring under the action of the fan. After exchanging heat with outside air, cold air is discharged from the chimney through the flue. The cold air is blown into the shell of the hot blast stove by the blower, and enters the air ring outside the stove through the top of the stove. Equipment that needs to clean hot air is supplied from the hot air outlet pipe.

These stronger effects greatly improve the working efficiency of the coal-fired hot blast stove. The above is the key to the summary, I hope to help you!