CN205119796U

CN205119796U - Smelting furnace

Info

Publication number: CN205119796U
Application number: CN201520886156.4U
Authority: CN
Inventors: 曾军; 陈铁平; 杨国良
Original assignee: Hunan Boti Aerospace Materials Co Ltd
Current assignee: Hunan Boti Aerospace Materials Co Ltd
Priority date: 2015-11-09
Filing date: 2015-11-09
Publication date: 2016-03-30
Anticipated expiration: 2025-11-09

Abstract

The utility model provides a smelting furnace. Smelting furnace includes the furnace body, discharge fume tub, the moisturizing pipe, the pipe of discharging fume is located the furnace body, the moisturizing pipe runs through the pipe of discharging fume is just located the intraductal chamber of discharging fume, the pipe of discharging fume is established by inside and outside pipe wall spacer sleeve and is formed, forms a cylindrical passage and a annular channel. The utility model provides a high temperature waste gas that smelting furnace can effectively utilize smelting furnace and discharges to the principle of heat exchange heats cold water, effectively reaches energy saving and emission reduction, reduces the energy and uses.

Description

Smelting furnace

Technical field

The utility model relates to a kind of aluminium ingot production equipment, particularly relates to a kind of aluminium ingot production smelting furnace.

Background technology

Aluminium is a kind of silvery white metal, and in the earth's crust, content is only second to oxygen and silicon comes the 3rd.The density of aluminium is less, is only 34.61% of iron, 30.33% of copper, therefore also referred to as light metal.Aluminium is that output and consumption are all only second to the non-ferrous metal of iron and steel in the world.The density of aluminium only has 2.7103g/cm3, is about about 1/3 of steel, copper or brass density.Because the material of aluminium is light, be therefore usually used in manufacturing the land, sea and air vehicles such as automobile, train, subway, boats and ships, aircraft, rocket, airship, increase useful load to alleviate deadweight.

Need to use smelting furnace equipment in the production of aluminium ingot, the heat energy that traditional smelting furnace utilizes fuel combustion to discharge or other energy heats water or other working medium, to produce the equipment of the steam of regulation parameter (temperature, pressure) and quality, hot water or other working medium.In smelting furnace use procedure, need to carry out moisturizing to it.Conventional moisturizing temperature, at about 40 degree, when a large amount of moisturizing, can cause smelting furnace fast cooling, forms gas and blocks up, affect normal steam supply.And aluminium ingot production smelting furnace is when discharging flue gas, its temperature is higher, and direct discharge then causes the waste of the energy.

Utility model content

For solving the problem, the utility model provides a kind of high-temp waste gas effectively utilizing smelting furnace to discharge, and is heated by cold water, effectively reach energy-saving and emission-reduction with the principle of heat exchange, reduces the technical scheme that the energy uses:

A kind of smelting furnace, comprise body of heater, smoke exhaust pipe, filling pipe, described smoke exhaust pipe is located at described body of heater, and described filling pipe runs through described smoke exhaust pipe and is located at described smoke exhaust pipe inner chamber, described smoke exhaust pipe is established by inside and outside tube wall spacer sleeve and is formed, and forms a cylindrical channel and a circular passage.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, described filling pipe is coiled pipe.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, described body of heater comprises burner hearth, fire door and firedoor frame, described burner hearth is surrounded by six face-piece bodies, described firedoor frame adopts heat-resisting cast iron piecemeal to be embedded in described housing, described firedoor frame is located at by described fire door, and described fire door is interior empty lifting furnace door.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, between the housing of described body of heater, welding manner is adopted to connect.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, described roof of the furnace is provided with thermocouple, and described thermocouple adopts carborundum protective sleeve to entangle, and is located at the junction of described smoke exhaust pipe and described burner hearth.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, described firedoor frame both sides are provided with guide groove, and described fire door connects described firedoor frame by described guide groove and realizes folding.

In a kind of preferred embodiment of the smelting furnace provided at the utility model, air inlet pipe is provided with bottom described smoke exhaust pipe, described air inlet pipe is communicated to described circular passage, described smoke exhaust pipe is also provided with blast pipe, the vertical top of described smoke exhaust pipe is located in described blast pipe one end, and the other end is communicated in described burner hearth.

Compared to prior art, the described smelting furnace that the utility model provides has following beneficial effect:

One, the described filling pipe of described smelting furnace that the utility model provides passes from described smoke exhaust pipe inner chamber, effectively utilizes the high-temp waste gas that described body of heater discharges, is heated by cold water, effectively reach energy-saving and emission-reduction with the principle of heat exchange, reduces the energy and uses.

Two, the described filling pipe of described smelting furnace that the utility model provides is coiled pipe, adds the contact area of described filling pipe and waste gas fully, improves heat exchanger effectiveness.

Three, described in the described smelting furnace that provides of the utility model, described burner hearth is located at by fire door, described fire door is the lifting furnace door of interior sky, heat transfer can be prevented and conveniently get rid of slag, described firedoor frame adopts heat-resisting cast iron piecemeal to be embedded in described housing, effectively can solve the distortion because high-temperature expansion causes and cracking, heat-resisting cast iron piecemeal is installed and can be convenient for changing simultaneously, easy to maintenance.

Four, the utility model is provided with described circular passage at described smoke exhaust pipe, described air inlet pipe and described blast pipe, by described air inlet pipe, the cold air (normal temperature air) in the external world is entered described circular passage, utilize the principle of cold and hot exchange, absorb the heat in described smoke exhaust pipe, and the air absorbing heat is entered in described burner hearth, reduce EGT, simultaneously, the air themperature entered in described burner hearth rises, combustion intensity is improve after air preheat, flame temperature and speed, strengthening furnace atmosphere circulation and programming rate, reduce operating cost, decrease environmental pollution simultaneously.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:

Fig. 1 is the smelting furnace structural representation that the utility model provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.

Referring to Fig. 1, is the smelting furnace structural representation that the utility model provides.Described smelting furnace 1 comprises body of heater 11, smoke exhaust pipe 12, filling pipe 13.

Described body of heater 11 comprises burner hearth 111, fire door 112 and firedoor frame 113.Described burner hearth 111 is surrounded by six face-piece bodies 1111, is welded to connect between described housing 1111.Described burner hearth 111 top is provided with thermocouple (not shown); described thermocouple (not shown) adopts carborundum protective sleeve (not shown) to entangle; be located at described smoke exhaust pipe 12 and the junction of described burner hearth 111, be used for showing temperature in described burner hearth 11.Described firedoor frame 112 adopts heat-resisting cast iron 1121 piecemeal to be embedded in described housing 1111, and described fire door 112 is interior empty lifting furnace door.Described firedoor frame 112 both sides are provided with guide groove 1122, and described fire door 112 connects described firedoor frame 113 by described guide groove 1122 and realizes folding.

Described smoke exhaust pipe 12 tube wall is arranged by inside and outside wall interval and forms, and forms a cylindrical channel 120 and a circular passage 121.Described smoke exhaust pipe 12 is located at described burner hearth 111 top.Be provided with air inlet pipe 122 and blast pipe 123 bottom described smoke exhaust pipe 12, described air inlet pipe 122 is communicated to described circular passage 121, and described smoke exhaust pipe 12 vertically top is located in described blast pipe 123 one end, and the other end is located at and is communicated in described burner hearth 111.

Described filling pipe 13 is coiled pipe.Described filling pipe 13 runs through described smoke exhaust pipe 12, and except two ends, mid portion is located at described smoke exhaust pipe 12 inner chamber,

Compared to prior art, the described smelting furnace 1 that the utility model provides has following beneficial effect:

One, the described filling pipe 13 of described smelting furnace 1 that the utility model provides passes from described smoke exhaust pipe 12 inner chamber, effectively utilize the high-temp waste gas that described body of heater 11 discharges, with the principle of heat exchange, cold water is heated, effectively reach energy-saving and emission-reduction, reduce the energy and use.

Two, the described filling pipe 13 of the described smelting furnace 1 that provides of the utility model is coiled pipe, adds contact area and the time of contact of described filling pipe 12 and waste gas fully, improves heat exchanger effectiveness.

Three, described in the described smelting furnace 1 that provides of the utility model, described burner hearth 111 is located at by fire door 112, described fire door 112 is the lifting furnace door of interior sky, heat loss can be prevented and conveniently get rid of slag, described firedoor frame 113 adopts heat-resisting cast iron 1121 piecemeal to be embedded in described housing 1111, effectively can solve the distortion because high-temperature expansion causes and cracking, heat-resisting cast iron 1121 piecemeal is installed and can be convenient for changing simultaneously, easy to maintenance.

Four, the utility model is provided with described circular passage 121 at described smoke exhaust pipe 12, described air inlet pipe 122 and described blast pipe 123, by described air inlet pipe 122, the cold air (normal temperature air) in the external world is entered described circular passage 121, utilize the principle of cold and hot exchange, absorb the heat in described smoke exhaust pipe 12, and the air absorbing heat is entered in described burner hearth 111, reduce EGT, simultaneously, the air themperature entered in described burner hearth 111 rises, combustion intensity is improve after air preheat, flame temperature and speed, strengthening furnace atmosphere circulation and programming rate, reduce operating cost, decrease environmental pollution simultaneously.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included within scope of patent protection of the present utility model.

Claims

1. a smelting furnace, it is characterized in that: comprise body of heater, smoke exhaust pipe, filling pipe, described smoke exhaust pipe is located at described body of heater, described filling pipe runs through described smoke exhaust pipe and is located at described smoke exhaust pipe inner chamber, described smoke exhaust pipe is established by inside and outside tube wall spacer sleeve and is formed, and forms a cylindrical channel and a circular passage.

2. smelting furnace according to claim 1, is characterized in that: described filling pipe is coiled pipe.

3. smelting furnace according to claim 2, it is characterized in that: described body of heater comprises burner hearth, fire door and firedoor frame, described burner hearth is surrounded by six face-piece bodies, described firedoor frame adopts heat-resisting cast iron piecemeal to be embedded in described housing, described firedoor frame is located at by described fire door, and described fire door is interior empty lifting furnace door.

4. smelting furnace according to claim 3, is characterized in that: adopt welding manner to connect between the housing of described body of heater.

5. smelting furnace according to claim 4, is characterized in that: described roof of the furnace is provided with thermocouple, and described thermocouple adopts carborundum protective sleeve to entangle, and is located at the junction of described smoke exhaust pipe and described burner hearth.

6. smelting furnace according to claim 3, is characterized in that: described firedoor frame both sides are provided with guide groove, and described fire door connects described firedoor frame by described guide groove and realizes folding.

7. smelting furnace according to claim 2, it is characterized in that: be provided with air inlet pipe bottom described smoke exhaust pipe, described air inlet pipe is communicated to described circular passage, and described smoke exhaust pipe is also provided with blast pipe, the vertical top of described smoke exhaust pipe is located in described blast pipe one end, and the other end is communicated in described burner hearth.