Efficient natural gas annealing furnace for oriented silicon steel

Abstract

The invention belongs to the technical field of annealing furnaces and in particular discloses an efficient natural gas annealing furnace for oriented silicon steel. The efficient natural gas annealing furnace for oriented silicon steel comprises an annealing furnace body (2), an annealing trolley (1), a combustion device (6) and a smoke exhausting device (5), wherein furnace body side sealing furnace doors (3) are arranged on the left and right end surfaces of the annealing furnace body (2). The annealing furnace is characterized in that the annealing trolley (1) is located on the outer sideof the annealing furnace body (2) and can operate in the annealing furnace body (2) in a track; furnace body lower sealing devices (4) for compacting and sealing the annealing trolley (1) are arrangedbelow front and back outer sides of the annealing furnace body (2); and the combustion device (6) and the smoke exhausting device (5) are separately located on the outer side of the annealing furnacebody (2) and communicate to the annealing furnace body (2). The efficient natural gas annealing furnace for oriented silicon steel is simple in structure and reasonable in design, and can improve thein-furnace annealing efficiency of the whole roll of oriented silicon steel

Description

technical field [0001] The invention belongs to the technical field of annealing furnaces, in particular to a high-efficiency natural gas annealing furnace for oriented silicon steel. Background technique [0002] The annealing furnace equipment for oriented silicon steel mostly adopts single electric bell furnace method and walking tunnel kiln method at present. The single electric bell furnace is annealed by electric heating, which consumes a lot of energy, and this kind of annealing furnace has an inner cover and an outer cover. Each group needs to be equipped with three inner covers and two outer covers. The cost is relatively high and the annealing production efficiency is low. ;The walking-type tunnel kiln can only produce one coil at a time, and each time a coil is produced, the furnace door and the atmosphere pipe need to be opened, the operation is cumbersome, and the temperature control cannot reach within ±5°C. Contents of the invention [0003] The invention p...

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Problems solved by technology

The single electric bell furnace is annealed by electric heating, which consumes a lot of energy, and this kind of annealing furnace has an inner cover and an outer cover. Each group needs to be equipped with three inner covers and two outer covers. The cost is relatively high and the annealing production efficiency is low. ;The walking tunnel kiln can only produce one coil at a time, and the furnace door and the atmosphere pipe need to be opened for each coil. The operation is cumbersome, and the temperature control cannot reach within ±5°C.

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