CN201421249Y

CN201421249Y - Non-ferrous metal smelting furnace

Info

Publication number: CN201421249Y
Application number: CN2009201225863U
Authority: CN
Inventors: 王国民; 朱小雄; 张仁光
Original assignee: Ningbo City Zhenhai Haide Industrial Furnace Co Ltd
Current assignee: Ningbo City Zhenhai Haide Industrial Furnace Co Ltd
Priority date: 2009-06-17
Filing date: 2009-06-17
Publication date: 2010-03-10
Anticipated expiration: 2019-06-17

Abstract

The utility model discloses a non-ferrous metal smelting furnace, which comprises a furnace body. A fire box is arranged at the inner part of the furnace body, a crucible is positioned in the fire box, a heating opening is arranged on the side wall of the furnace body, a heat exchanger is arranged at the upper end of the furnace body, a first chimney flue in the heat exchanger is connected with asecond chimney flue in the fire box, the second chimney flue circles the furnace body, and stack gas inlets are formed at intervals on the side walls of the second chimney flue. In the utility model,the second chimney flue is designed as a ring-shaped chimney flue, and stack gas inlets are formed at intervals on the side walls of the chimney flue, therefore, the heating of the crucible arranged at the inner part of the smelting furnace is uniform, the heat efficiency is greatly improved, energy is saved, and the service life of the crucible is greatly prolonged.

Description

Nonferrous metal smelting furnace

Technical field

The utility model relates to a kind of nonferrous metal smelting furnace

Background technology

Crucible furnace is the equipment of metallurgy industry deposite metal commonly used, under the heating of coal, combustion gas, coke or electric energy, metal (as aluminium, magnesium, lead, one-tin brass, red copper, the ferroalloy etc.) fusing that adds in it is standby, but crucible furnace of the prior art, especially adopt the crucible furnace of coal dust or coal dust and fuel oil Hybrid Heating, its efficiency of heating surface is not high, and energy-output ratio is bigger.

In recent years, a kind of nonferrous metal smelting furnace appears, China's utility model, Granted publication number is " CN2828699 ", disclose a kind of energy-conservation aluminium melting furnace, its structure comprises body of heater, aluminum melting crucible, discharge flue, furnace wall flue and combustor, an extraneous air preheater mat fixed head is fixed on the upper right side of body of heater, and it is made up of three concentric circles, innermost circle is to discharge flue, two concentric circles of outside are outside sandwich and intraformational bed, are the passages of air preheat, in the outside sandwich bottom one cool air inlet are arranged, there is a space to be communicated with on outside sandwich top, an extraneous air preheater outlet is arranged in the intraformational bed bottom with intraformational bed; Be provided with an inner air preheater of being made up of the circulating line of two Gen Pinglian in the flue of furnace wall, inner air preheater inlet tube links to each other with extraneous air preheater outlet, is provided with an inner air preheater outlet in the bottom of inner air preheater; On the combustor outlet, be provided with a whirlwind generator, inner air preheater outlet links to each other with the whirlwind generator inlet, link to each other around the whirlwind flow-guiding channel on the combustor outlet with the spirality of four parallel connections again, the outlet of whirlwind flow-guiding channel is located at combustor outlet termination, and whirlwind generator front end has a space: be provided with an insulation cover plate above aluminum melting crucible.

This aluminium melting furnace, the burner top is provided with flue, this flue connects discharges flue, when burner during to the inner flame of furnace chamber, flame will enter flue (as shown in Figure 3) shown in arrow 100, will cause the crucible bottom and the sidewall that are positioned at burner one side excessively to be heated like this, and the crucible bottom of an opposite side with burner and sidewall are heated inadequately, not only waste energy in a large number, and significantly reduced the service life of crucible.

The utility model content

The utility model provides a kind of nonferrous metal smelting furnace at deficiency of the prior art, uses this nonferrous metal smelting furnace, and the crucible that is placed in smelting furnace inside is heated evenly, thus energy savings, and the service life that can improve crucible greatly.

In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:

A kind of nonferrous metal smelting furnace, comprise body of heater, body of heater inside has burner hearth, crucible is positioned at burner hearth, described side wall of furnace is provided with heating gate, and the upper end of body of heater is provided with heat exchanger, and first flue in the heat exchanger links to each other with second flue in the burner hearth, described second flue is around body of heater, and the interval has smoke inlet on the sidewall of second flue.

In the technique scheme, described smoke inlet is 6～10.

In the technique scheme, described cross-section of crucible is a rectangle.

In the technique scheme, cross-section of crucible is circular, and it is made by graphite.

Beneficial effect: the utility model compared with prior art has following beneficial effect:

The utility model second flue is set to annular flue, and on the sidewall of second flue, have smoke inlet at interval, make the crucible that is placed in smelting furnace inside be heated evenly, thereby improve thermal efficiency energy savings greatly, and can improve the service life of crucible greatly.

Description of drawings

Fig. 1 is the nonferrous metal smelting furnace front view

Partial sectional view when Fig. 2 overlooks for nonferrous metal smelting furnace shown in Figure 1

Fig. 3 be in the prior art flame move towards figure

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Flame in the background technology moves towards as shown in Figure 3: this energy-conservation non-ferrous metal melting stove, the heating gate top is provided with flue, this flue connects discharges flue, the flame of high temperature enters burner hearth by this heating gate, flame will enter flue shown in arrow 100, will cause the crucible bottom and the sidewall that are positioned at heating gate one side excessively to be heated like this, and the crucible bottom of an opposite side with heating gate and sidewall are heated inadequately, not only waste energy in a large number, and significantly reduced the service life of crucible.

The utility model is seen Fig. 1～Fig. 2:

A kind of nonferrous metal smelting furnace, comprise body of heater 1, body of heater 1 inside has burner hearth 10, crucible 11 is positioned at burner hearth 10, the cross section of described crucible 11 is a rectangle, is fit to the lower non-ferrous metal of fusing fusing point, when the higher non-ferrous metal of needs fusing fusing point, the cross section of crucible 11 is arranged to circle, and adopts graphite to make.

The sidewall of described body of heater 1 is provided with heating gate 3, the flame of high temperature enters burner hearth 10 by this heating gate 3, the upper end of body of heater 1 is provided with heat exchanger 7, first flue 70 in the heat exchanger 7 links to each other with second flue 12 in the burner hearth 10, also be provided with air intlet 5 continuous, air intlet 5 connection blowing devices on the described heat exchanger 7, described second flue 12 is around body of heater 1, and have smoke inlet 14 on the sidewall of second flue 12 at interval, preferably, described smoke inlet 14 is 6～10, can make flame round whole crucible 11 like this.

Top corresponding to crucible on the sidewall of described heat exchanger is provided with exhaust opening 9.

When the flame of high temperature enters burner hearth 10 by this heating gate 3, flame will enter flue shown in arrow 101, thereby it is comparatively even that crucible 11 sidewalls and bottom are heated, can improve the burn-off rate of non-ferrous metal greatly, thereby can improve the thermal efficiency greatly, and can prolong the service life of crucible 11 greatly.

Claims

1, a kind of nonferrous metal smelting furnace, comprise body of heater (1), body of heater (1) inside has burner hearth (10), crucible (11) is positioned at burner hearth (10), the sidewall of described body of heater (1) is provided with heating gate (3), the upper end of body of heater (1) is provided with heat exchanger (7), first flue (70) in the heat exchanger (7) links to each other with second flue (12) in the burner hearth (10), it is characterized in that, described second flue (12) is around body of heater (1), and the interval has smoke inlet (14) on the sidewall of second flue (12).

2, nonferrous metal smelting furnace as claimed in claim 1 is characterized in that, described smoke inlet (14) is 6～10.

3, nonferrous metal smelting furnace as claimed in claim 1 or 2 is characterized in that, the cross section of described crucible (11) is a rectangle.

4, nonferrous metal smelting furnace as claimed in claim 1 or 2 is characterized in that, the cross section of crucible (11) is circular, and it is made by graphite.