Efficient pre-heating furnace
A kind of preheating furnace, high-efficiency technology, applied in the direction of furnace, crucible furnace, waste heat treatment, etc., can solve the problems such as endangering the health of operators, the temperature of the furnace body cannot be accurately grasped, and the metal surface is heated unevenly, so as to achieve simple structure and high efficiency. Preheating efficiency, low cost effect
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[0014] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0015] It can be seen from the accompanying drawings that a high-efficiency preheating furnace includes a furnace body 1 and a support frame 2. A first feed port 4 and a second feed port 5 are provided on the top, and a fuel delivery pipe 6 is provided at the upper end of the furnace body 1; a heating device 7 is provided inside the furnace body 1, and a heating device 7 is provided inside the furnace body 1 The flue gas heating pipe 8, the flue gas heating pipe 8 is an "S" type flue gas heating pipe 8; the left and right ends of the furnace body 1 are respectively provided with a smoke exhaust main pipe 9, and the smoke exhaust main pipe 9 is arranged on the heating device 7; the inner lower end of the furnace body 1 is provided with a fan 10; the furnace body 1 is provided with a first filter screen 11, and the first filter screen 11 is arran...
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