Heat treatment device of rod-like material

Abstract

The invention relates to a heat treatment device of rod-like materials. The device comprises a heating furnace, a combustor for combusting fuel, a loading module, a feeding module, a charging module and a slip pipe. The loading module automatically screen the rod-like materials in a bunker, adjust the state of the materials and push the materials to a conveyor belt of the feeding module; a material moving device sequentially move the rod-like materials on the conveyor belt into a feed chute one by one; a pneumatic material pushing device pushes the rod-like materials in the feed chute into a heating furnace; once one rod-like material is pushed into a feed inlet, one rod-like material is discharged from a discharge port of the discharging module; a heat supply source in the heating furnace is employed to heat the rod-like materials from the outside of tubes; and the heat laden in the flue gas is treated by a heat exchanger and a high pressure blower fan to realize recovery of flue gas waste heat. The device provided by the invention has high degree of automation, is suitable for batch heat treatment of rod-like materials and has the advantages of high efficiency, low cost, energy saving and environmental protection.

Description

technical field [0001] The invention relates to a rod-shaped material heat treatment equipment, in particular to a rod-shaped material heat treatment device with a high degree of automation, energy saving and environmental protection. Background technique [0002] In order to make the workpiece material have the required mechanical properties, chemical properties and mechanical properties, it is usually necessary to perform a heat treatment process on the workpiece material. The result of heat treatment is to change the surface or internal metallographic structure of the workpiece material, so that the workpiece material has a strong hardness. and wear resistance. The heating furnaces used in heat treatment can be divided into fuel heating furnaces, resistance heating furnaces, induction heating furnaces and microwave heating furnaces according to the heat source. Fuel heating furnaces and induction heating furnaces are most commonly used in the metallurgical industry. The ...

AI Technical Summary

Problems solved by technology

The intermediate frequency induction heating furnace is the main metal heating equipment in casting, forging and heat treatment workshops. It has the following advantages: (1) fast heating speed, high production efficiency, and less oxidation and decarburization of the workpiece surface; High control precision; (3) The working environment is superior, improving the working environment of workers and the image of the company, and no pollution; the medium frequency induction heating furnace also has the following shortcomings: (1) High energy consumption, the medium frequency induction heating is generally 350KW, and the frequency is 1000Hz The power supply is powered by a large power supply, and the unit cost is much higher than that of the gas heating method; (2) The induction heating equipment is complex and has poor adaptability, and it is difficult to guarantee the quality of some workpieces with complex shapes; Limitations, such as the induction heating of copper rods, because pure copper is a non-magnetic metal, has no magnetic domains, and does not respond to magnetic fields; and some brass, although it contains some magnetic metals, can be induced, but the heating efficiency is low

[0004] Moreover, most of the existing heat treatment equipment manually discharges the workpieces to be heated to the feeding device one by one, and uses pneumatic devices or other pushing devices to heat the workpieces. The workpieces are sequentially pushed into the heating furnace for heat treatment, which takes a long time, low efficiency and high cost, especially for some short workpieces, which are large in number and messy, and relying on manual loading greatly reduces production efficiency

[0005] Utility model patent 201120028468.3 discloses a stepped roller feeding mechanism, which is used to send a certain number of rollers to rollers with a certain height step by step A mechanism that completes the assembly of roller bearings at the feed port of the assembly mechanism, effectively avoiding the surface of the rollers from being scratched, and ensuring the appearance and quality of the finished roller bearings; It is easy to stack during the process, and the rod-shaped or cylindrical workpiece near the baffle is easy to slip off and scratch from the lifting plate during the process of moving on the lifting plate, which affects the quality of the workpiece and work efficiency

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