The bright annealing furnace is an energy-saving periodic operation furnace with a super energy-saving structure. The trolley adopts anti-impact sealing bricks, automatic brick turning mechanism, automatic sealing trolley and furnace door, integrated rail, no foundation installation, and can be used when it is fixed on a level ground with foundation pads or expansion screws. Mainly used for high chromium, high manganese steel castings, ductile iron, rolls, steel balls, steel, stainless steel and other quenching, annealing, aging and heat treatment of various mechanical parts.

The outer shell of the electric furnace is welded by steel plate and section steel. The bottom of the furnace body is connected with the light rail of the trolley. The user does not need to install it, and only needs to be placed on a flat concrete floor. The furnace lining is made of ultra-light refractory bricks, which is about energy-saving compared to traditional brick furnaces. It uses high-quality long-fiber thorn blankets, diatomaceous earth bricks, and vermiculite powder as insulation materials. The furnace mouth uses heavy anti-collision bricks and a heavy trolley surface. High-quality aluminum pressure-resistant bricks. In addition to the labyrinth refractory masonry between the furnace body and the trolley, a self-acting sealing mechanism is used to reduce the heat radiation and convection loss of the electric furnace, and to improve the furnace temperature uniformity. The heating elements are spirally wound with high-temperature resistance alloy wires and are distributed on the furnace side, furnace door, back wall and the wire laying bricks of the trolley, and are fixed with national standard socket bricks, which are safe and simple. The trolley is equipped with pressure-resistant and high-temperature cast steel furnace bottom plates to carry workpieces.

In order to prevent the oxide scale generated by the workpiece from falling into the heating element through the gap between the furnace floor and causing damage to the heating element, the bright annealing furnace therefore adopts the plug-in contact at the contact between the furnace floor and the furnace body. For normal use, it is necessary to frequently purge the oxide scale below the bottom plate, generally once a week, hoist the furnace bottom plate during the blowing, and use compressed air to clean the oxide scale in the resistance wire groove, and pay attention to prevent the oxide scale from getting stuck. Causes shortness in the furnace wire. The furnace door device consists of the furnace door, the furnace door lifting mechanism and the furnace door pressing device. The furnace door shell is welded with section steel and plate to form a firm frame structure, and the interior is made of refractory fiber modules, which require good heat preservation performance and light weight.

The lifting device of the furnace door adopts an electric device. The bright annealing furnace is mainly composed of a furnace door frame, a furnace door lifting beam, a reducer, a sprocket, a transmission shaft and a bearing, etc. The furnace door is moved forward and backward through the reducer. To drive the furnace door up and down. The furnace door lifting reducer is also equipped with a brake device, which can effectively prevent the furnace door from shifting during the lifting process. The furnace door pressing device adopts the domestic advanced spring-type pressing structure. When the furnace needs to be lifted, the furnace door's own weight will automatically loosen the furnace door through the lever, and move it horizontally for a certain distance before rising. When the furnace door is lowered into place, the furnace door When the pulley placed on the trolley needs to be compressed, the spring force is used to move the furnace door horizontally to the compressed and sealed state through the lever. The compression device of this structure makes the fiber plane on the furnace door and the furnace mouth cotton There is no friction between them, and it has the characteristics of good safety performance and long use.