CN202322916U

CN202322916U - Rotary metal rod electromagnetic heating furnace

Info

Publication number: CN202322916U
Application number: CN2011204631993U
Authority: CN
Inventors: 梁钜华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-11
Anticipated expiration: 2021-11-18

Abstract

The utility model discloses a rotary metal rod electromagnetic heating furnace, which comprises a horizontal type rotary furnace body, wherein a plurality of pipe bodies capable of axially penetrating through a metal rod are fixed on the circumferential wall of the furnace body. The rotary metal rod electromagnetic heating furnace is characterized in that the furnace body is arranged in an insulation shell, an insulating layer is arranged on the inner wall of the insulation shell, at least one group of electromagnetic induction coils connected with an intermediate frequency power supply is arranged on the circumferential wall of the insulation shell, two ends of the insulation shell are respectively provided with an opening penetrating through the pipe bodies. According to the rotary metal rod electromagnetic heating furnace, the rotary furnace body and the pipe bodies are integrally accommodated in the insulation shell, and are subjected to thermal insulation, heat generated by electromagnetic induction is remained in the insulation shell, residual heat of the furnace body is fully comprehensively utilized, thus heating efficiency is increased, an electric brush ring does not need to be installed, thus compared with the traditional structure that an electromagnetic induction coil is wound outside each pipe body, the rotary metal rod electromagnetic heating furnace has the advantages of simpler structure, effectively improved reliability in working performance, and convenience for installation and maintenance.

Description

Rotary metal bar electromagnetic heating furnace

Technical field

The utility model relates to the metal fever field shaping technique, especially relates to the electromagnetic heating furnace that before the metal fever moulding, metal bar is heated.

Background technology

Metal need heat the metal ingot blank before moulding usually, makes it softening, so that the metal fever distortion.Such as aluminium section bar, at first utilize process furnace to the aluminium bar thermoplastic, then through the extrusion machine extrusion molding.

Traditional process furnace has type of heating such as fire coal, fuel oil and resistive heating.Wherein coal-fired, fuel Heating mode, seriously polluted, daily working service trouble, heating efficiency also has only 45% level, and can produce oxidation in various degree to metal, and they are subject to rising steadily of scarcity of resources and energy prices.Resistive heating mode, its heat efficiency are still low.The common point of old-fashioned metal bar process furnace all is a flush system, and burner hearth is a square, places several rows of aluminium bar in the burner hearth; Transmit heat through warm air and give metal bar, the problem of generation is inclined to one side temperature, and is peripheral inconsistent with intermediary metal bar temperature; Simultaneously; The workshop temperature is too high, and the big dry pitch of dust constitutes disadvantageous effect to public health.Along with people's is increasingly high to environmental protection requirement, has only energy-saving and emission-reduction could closely follow the social development demand.Therefore, present process furnace has adopted heating efficiency the highest, fastest, the electromagnetism type of heating of low-loss and energy-saving environment-friendly type.Disclosed utility model patent CN201020294406.2 put down in writing a kind of electromagnetic heating furnace such as on March 23rd, 2011; This process furnace is horizontal rotary funace; Some bodys that can axially install metal bar evenly are set on the perisporium of rotating furnace body, and the outer wall of each body all is provided with electromagnetic induction coil.Therefore, electromagnetic induction coil needs to connect through brush ring and intermediate frequency power supply along with rotating furnace body rotates.Because the serviceability of brush ring is also unreliable, can influence the work-ing life of process furnace; Heat between body and the body is isolated relatively, and waste heat is not fully utilized, and heat scatters and disappears fast, and the usefulness that causes generating heat reduces; The structure of process furnace is also comparatively complicated, and the difficulty of installing and keeping in repair is high.

The utility model content

The technical problem that the utility model will solve provides a kind of simple in structure, can fully utilize the body of heater waste heat, the rotary metal bar electromagnetic heating furnace of reliable working performance.

The technical scheme that adopts for solving the problems of the technologies described above: a kind of rotary metal bar electromagnetic heating furnace; Comprise a horizontal rotating furnace body; Be fixed with some bodys that can axially install metal bar on the perisporium of body of heater, it is characterized in that: said body of heater is placed in the insulated shell, and the insulated shell inwall is provided with thermal insulation layer; If the electromagnetic induction coil of at least one group of connection intermediate frequency power supply is wrapped in the periphery wall of insulated shell, the two ends of said insulated shell have the opening of the said body of a perforation.

Adopt the beneficial effect that the utility model brought: the utility model is contained in rotating furnace body and body in the insulated shell as a whole; And be incubated; The heat that electromagnetic induction produces can remain in the insulated shell, and the body of heater waste heat is fully fully utilized, and has promoted heating usefulness.Electromagnetic induction coil is the outer wall of the insulated shell outside body of heater just; And have only body of heater to rotate; And shell and electromagnetic induction coil need not to rotate, and also just need not to install the brush ring, one-piece construction than traditional outside each body equal simple in structure many around electromagnetic induction coil; The safety of serviceability is also effectively promoted, and it is very convenient to install and keep in repair.

Description of drawings

Fig. 1 is the side structure synoptic diagram of the rotary metal bar electromagnetic heating furnace of the utility model;

Fig. 2 is the end face structure synoptic diagram of the rotary metal bar electromagnetic heating furnace of the utility model;

Fig. 3 is the cross section structure synoptic diagram of the rotary metal bar electromagnetic heating furnace of the utility model.

Embodiment

Shown in Fig. 1-3, a kind of rotary metal bar electromagnetic heating furnace comprises a horizontal rotating furnace body 1, is fixed with some bodys 2 that can axially install metal bar on the perisporium of body of heater 1.Said body of heater 1 is placed in the insulated shell 3; Insulated shell 3 inwalls are provided with thermal insulation layer 4; If the electromagnetic induction coil 5 of at least one group of connection intermediate frequency power supply is wrapped in the periphery wall of insulated shell 3, the two ends of said insulated shell 3 have the opening 6 of the said body 2 of a perforation.

Metal bar is headed in the body 2 from the wherein end opening 6 of process furnace by the excellent machine in top, and stepping rotating furnace 1 makes each root body 2 successively over against opening 6, lets all bodys 2 metal bar of packing into successively.Metal bar is packed into behind the process furnace, by electromagnetic induction coil 5 it is carried out electromagnetic induction heating.Electromagnetic induction coil 5 adopts 1-10 kilohertz intermediate frequency power supply to be connected with it usually.Suitable body of heater 1 rotating speed can be set, metal bar is circled after, just reach the temperature of regulation, head on cold rod to be heated by the excellent machine in top and eject the hot pin that has heated from the other end opening 6, and reload cold rod, realize working continuously of process furnace thus.

Claims

1. rotary metal bar electromagnetic heating furnace; Comprise a horizontal rotating furnace body; Be fixed with some bodys that can axially install metal bar on the perisporium of body of heater, it is characterized in that: said body of heater is placed in the insulated shell, and the insulated shell inwall is provided with thermal insulation layer; If the electromagnetic induction coil of at least one group of connection intermediate frequency power supply is wrapped in the periphery wall of insulated shell, the two ends of said insulated shell have the opening of the said body of a perforation.