The invention relates to a uniform temperature type efficient
electric heating furnace, which comprises a support seat (1), a furnace inner tube (11), a furnace outer tube (11) and a tube body (28), wherein heat insulation materials (12) are filled between the furnace inner tube (10) and the furnace outer tube (11), the tube body (28) is fixedly arranged on the support seat (1) arranged at the bottom of the tube body, and the upper part of the tube body (28) is connected with a furnace cover (23). The uniform temperature type efficient
electric heating furnace is characterized in that a resistance belt
heating element (7) is arranged on the inner wall of the furnace inner tube (10), a bottom
heating element (2) is arranged at the bottom of the tube body (28) and on the support seat (1), acolumn-shaped
heating element (8) is arranged in the center of the tube body (28), a heated medium
pipe (5) is spirally arranged around the column-shaped heating element (8) and is positioned in an inner cavity of the tube body (28) through a fixing element (4) and a support rod (3), the fixing rod (4) is connected with the lower end of a hanging rod (29) through a connecting element (14), the hanging rod (29) is fixedly arranged in the furnace cover (23), the inlet end (17) and the outlet end (21) of the heated medium
pipe (5) respectively pass through the furnace cover (23), a protection gas inlet
pipe (26) passes through the bottom (46) of the tube body to be communicated with the inner cavity of the tube body (28), and a protection gas outlet pipe passes through the furnace cover (23)to be communicated with the inner cavity of the tube body (28). The uniform temperature type efficient
electric heating furnace has the advantages that the uniform temperature performance in the furnace is good, and the manufacture, the hanging and the maintenance of a furnace pipe are convenient.