Atmosphere passing cover type mobile trolley furnace

Abstract

The invention discloses an atmosphere passing cover type mobile trolley furnace. The atmosphere passing cover type mobile trolley furnace comprises a furnace body having openings in the bottom and the front and back ends, furnace doors, a trolley, a trolley walking mechanism positioned at the bottom of the furnace body, a furnace door lifting portal frame, an electric heating element and an electric appliance control system, and further comprises an atmosphere passing device and a furnace body guide sealing mechanism, wherein the atmosphere passing device comprises a gas generator, an air inlet pipe and a surrounding steel pipe; on the one hand, the internal temperature of a hearth is distributed more evenly, and on the other hand, the heating temperature rises, and the heat treatment efficiency is high; sand groove and hollow sealing strips are arranged around the trolley; the sand groove sealing bars are mainly used for preventing the leakage of heat; the hollow sealing strips are mainly used for sealing the furnace body with the furnace doors and the trolley to eliminate the micro uneven influence of two contact surfaces; the furnace doors are respectively arranged at the two ends of the furnace body; after workpieces enter the hearth from the furnace door at one end of the furnace body for heating, the workpieces are discharged from the furnace door at the other end to enter the next procedure; the whole process is fully automatic; the loading / unloading of the workpieces is simple; and the rejection rate of the workpieces is reduced.

Description

Technical field [0001] The invention belongs to the field of heat treatment equipment, and in particular relates to an atmosphere hood type mobile trolley furnace. Background technique [0002] The trolley type resistance furnace is a national standard energy-saving periodic operating furnace. It has an ultra-energy-saving structure and uses a fiber structure to save electricity up to 60%. It is currently an indispensable heat treatment equipment for heating workpieces and metal materials. Metal workpieces are in different There will be different crystal structures in the temperature heating state. By heating the metal workpieces at different temperatures in the trolley resistance furnace, different metal products can be obtained. Therefore, the temperature control in the trolley resistance furnace is extremely important for the processing of the workpiece. [0003] At present, most of the trolley resistance furnaces adopt a single furnace door form, and electric heating elements a...

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Problems solved by technology

[0003] At present, most of the trolley resistance furnaces use a single furnace door, and electric heating elements are installed inside, and the workpiece to be heated is sent to the inside of the furnace for heating through the trolley. Obviously, but the efficiency of heat treatment is low, the sealing effect of the sealing mechanism is not good, it is easy to leak heat, and the furnace door is only set at one end of the furnace body, which brings inconvenience to the next process of quenching and annealing of the workpiece. The operation mode is single, and the workpiece needs to be loaded and unloaded many times, resulting in increased labor intensity, time-consuming and laborious, and multiple loading and unloading of the workpiece will increase the scrap rate of the workpiece

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