CN201154976Y

CN201154976Y - Well annealing furnace

Info

Publication number: CN201154976Y
Application number: CNU2008200974511U
Authority: CN
Inventors: 王云夫; 许维中
Original assignee: FOSHAN SHUNDE JINGYI WANXI COPPER INDUSTRY Co Ltd
Current assignee: FOSHAN SHUNDE JINGYI WANXI COPPER INDUSTRY Co Ltd
Priority date: 2008-01-05
Filing date: 2008-01-05
Publication date: 2008-11-26
Anticipated expiration: 2018-01-05

Abstract

The utility model relates to a well type annealing furnace which comprises a furnace hearth, more than three groups of resistance wires arranged in the furnace hearth and more than one group of temperature probes arranged in the furnace hearth; each group of the resistance wire consists of ABC three-phase resistance wires and is characterized in that each group of the three-phase resistance wires is arrayed in the hearth in a staggered way, that is, the same group of the ABC three-phase resistance wires is not arrayed adjacently up and down and is arrayed adjacently with other groups of the resistance wires up and down. As each group of the three-phase resistance wires is arrayed in the hearth in the staggered way, when in annealing, the temperature in the furnace hearth is evener than before; no local over-burning phenomena can happen; the annealing quality and the quality stability can be improved greatly, and the annealing furnace is easy in structure.

Description

A kind of well formula annealing furnace

Technical field

The utility model relates to well formula annealing furnace, belongs to the metal annealing field.

Background technology

Generally use well formula electric resistance annealing stove at present in the metal annealing field, the topology layout of this burner hearth as shown in Figure 1; Five groups of resistance wires are installed on the whole hearth wall from top to bottom in order successively, are formed an independently heat regulation system by ABC three-phase resistance silk, contactor, a hot resistance probe, a temperature controller for every group.This regulation system can only be carried out bound control to temperature, if observed temperature is higher than upper temperature limit, temperature controller is with regard to the three-phase supply of control contactor off resistance silk, and resistance wire just stops heating; If observed temperature is lower than to lowest temperature, temperature controller is with regard to the three-phase supply of control contactor connection resistance wire, and resistance wire just begins heating; Make so that the temperature of heating object is controlled within the desired bound temperature in the burner hearth.

Annealing furnace is when heating with full power, and generally all resistance wires all carry out capacity operation.In insulation, generally only need a little several groups of resistance wire to heat, because insulating process influences the annealing quality if heating power is crossed conference and caused the temperature overtemperature.So existing installation general employing second, four group of resistance wire shown in Figure 1 when the insulation operation is incubated heating or adopts the 3rd group of resistance wire to be incubated heating.This dual mode all can cause heating inhomogeneous, local phenomenon overbumt occurs, is difficult to guarantee the annealing quality.Certain this problem can use the silicon-controlled voltage regulation device to solve, but powerful silicon-controlled voltage regulation device price is very expensive, and the producer of production unit and the producer of use seldom adopt.

The utility model content

The purpose of the utility model patent is to overcome above defective and provides a kind of in when annealing homogeneous heating, local phenomenon overbumt can not occur, can guarantee the quality of annealing, a kind of well formula annealing furnace simple in structure.

For reaching above purpose, the utility model is achieved in that it is a kind of well formula annealing furnace, comprises burner hearth, is located at three groups of above resistance wires in the burner hearth and is located at one group of interior above temp probe of burner hearth, and every group of resistance wire is made of ABC three-phase resistance silk; It is characterized in that: every group of three-phase resistance silk is staggered in burner hearth, i.e. ABC three-phase resistance silk on the same group and non-conterminous being arranged above and below are each other with not organize resistance wire neighbouring.

In described burner hearth, be provided with five groups of resistance wires; The 1A phase resistance silk of first group of resistance wire is arranged on the tip position in the burner hearth, and its 1B phase resistance silk is arranged on the mid-way in the burner hearth, and its 1C phase resistance silk is arranged on the bottom position in the burner hearth; The 2A of second group of resistance wire, 2B phase resistance silk distribute up and down and are arranged on the below of the 1A phase resistance silk that is positioned at first group in the burner hearth, and its 2C phase resistance silk is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk; The 3rd group of resistance wire is between second group of 2B phase resistance silk and 2C phase resistance silk; The 4A phase resistance silk of the 4th group of resistance wire is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk, its 4B, 4C phase resistance silk distribute up and down and are arranged on below in the burner hearth, and the 1C phase resistance silk of 4C phase resistance silk and first group is neighbouring; The 5th group of resistance wire is between the 5th group of 5A phase resistance silk and 5B phase resistance silk.

The utility model advantage compared with prior art is, because every group of three-phase resistance silk is staggered in burner hearth, when annealing, the temperature in the burner hearth is even than before, local phenomenon overbumt can not occur, and the stability of annealing quality and quality is greatly improved; It is simple in structure.

Description of drawings

The structural representation of Fig. 1 existing well formula annealing furnace;

Fig. 2 structural representation of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is done further detailed description:

As shown in Figure 2, it is a kind of well formula annealing furnace, comprises burner hearth 6, is located at three groups of above resistance wires in the burner hearth and is located at one group of interior above temp probe 7 of burner hearth, and every group of resistance wire is made of ABC three-phase resistance silk.Every group of three-phase resistance silk is staggered in burner hearth 6, i.e. ABC three-phase resistance silk on the same group and non-conterminous being arranged above and below are each other with not organize resistance wire neighbouring.

In the present embodiment, in burner hearth 6, be provided with five groups of resistance wires; The 1A phase resistance silk of first group of resistance wire 1 is arranged on the tip position in the burner hearth 6, and its 1B phase resistance silk is arranged on the mid-way in the burner hearth, and its 1C phase resistance silk is arranged on the bottom position in the burner hearth; The 2A of second group of

resistance wire

2,2B phase resistance silk distribute up and down and are arranged on the below of the 1A phase resistance silk that is positioned at first group in the burner hearth, and its 2C phase resistance silk is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk; The 3rd group of resistance wire 3 is between second group of 2B phase resistance silk and 2C phase resistance silk; The 4A phase resistance silk of the 4th group of resistance wire 4 is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk, its 4B, 4C phase resistance silk distribute up and down and are arranged on below in the burner hearth, and the 1C phase resistance silk of 4C phase resistance silk and first group is neighbouring; The 5th group of resistance wire 5 is between the 5th group of 5A phase resistance silk and 5B phase resistance silk.In furnace chamber, be provided with five groups of temp probes 7 uniformly.When use is, during with one group of resistive heating, can use first group of resistance wire 1 as need, this group resistance wire A B C three-phase is distributed in the upper, middle and lower of burner hearth, therefore can obtain more uniform fire box temperature.During with two groups of resistive heating, can use second group and the 5th group of resistance wire as need, these two groups of resistance wires also are distributed in the furnace wall upper, middle and lower, therefore also can obtain more uniform fire box temperature.During with three groups of resistive heating, can use first group, second group and the 5th group of resistance wire as need, these three groups of resistance wires also are distributed in the furnace wall upper, middle and lower, therefore also can obtain more uniform fire box temperature.During with four groups of resistive heating, can use second, third group and the 4th, the 5th group of resistance wire as need, these four groups of resistance wires also are distributed in the furnace wall, so also can obtain more uniform fire box temperature.As, when needing with five groups of resistive heating, five groups of resistance wires all use, effect does not have difference.

Claims

1, a kind of well formula annealing furnace comprises burner hearth, is located at three groups of above resistance wires in the burner hearth and is located at one group of interior above temp probe of burner hearth that every group of resistance wire is made of ABC three-phase resistance silk; It is characterized in that: every group of three-phase resistance silk is staggered in burner hearth (6), i.e. ABC three-phase resistance silk on the same group and non-conterminous being arranged above and below are each other with not organize resistance wire neighbouring.

2, according to a kind of well formula annealing furnace of stating of claim 1, it is characterized in that: in described burner hearth (6), be provided with five groups of resistance wires; The 1A phase resistance silk of first group of resistance wire (1) is arranged on the tip position in the burner hearth (6), and its 1B phase resistance silk is arranged on the mid-way in the burner hearth, and its 1C phase resistance silk is arranged on the bottom position in the burner hearth; The 2A of second group of resistance wire (2), 2B phase resistance silk distribute up and down and are arranged on the below of the 1A phase resistance silk that is positioned at first group in the burner hearth, and its 2C phase resistance silk is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk; The 3rd group of resistance wire (3) is between second group of 2B phase resistance silk and 2C phase resistance silk; The 4A phase resistance silk of the 4th group of resistance wire (4) is arranged on the interior medium position of burner hearth and neighbouring with first group 1B phase resistance silk, its 4B, 4C phase resistance silk distribute up and down and are arranged on below in the burner hearth, and the 1C phase resistance silk of 4C phase resistance silk and first group is neighbouring; The 5th group of resistance wire (5) is between the 5th group of 5A phase resistance silk and 5B phase resistance silk.