HEATING FURNACE, COOLER AND ROLLER HEARTH TYPE ANNEALING FURNACE WITH A PREVENTING VORTEX GUIDE

摘要

A reheating furnace, a cooling furnace and a roller hearth type annealing furnace with vortex preventing guides, which can reduce the energy consumed in heating and cooling, and can reduce the time consumed in heating of a heating object or cooling of a cooling object, are provided. A reheating furnace(100) with vortex preventing guides(150) comprises: a reheating furnace housing(110) in which a predetermined space is formed; regenerative burners(120) installed in an upper part and a lower part in the reheating furnace housing to emit heat; a reheating furnace bell(130) installed between an upper regenerative burner(121) and a lower regenerative burner(122) in the reheating furnace housing to transfer heat to a heating object(10a); and at least one heated air circulating part(140) installed in an upper part of the reheating furnace bell to circulate air in the reheating furnace housing, wherein the vortex preventing guides are installed at upper and lower corners inside the reheating furnace housing. The reheating furnace bell includes a left heating wall surface(131) and a right heating wall surface(132). The heated air circulating part includes a circular air exhaust port(144), a heated air circulating fan(142), and a semicircular cross-sectional shaped dispersing cap(146).