CN201621939U - Cupola furnace with heating device - Google Patents
Cupola furnace with heating device Download PDFInfo
- Publication number
- CN201621939U CN201621939U CN2010200378402U CN201020037840U CN201621939U CN 201621939 U CN201621939 U CN 201621939U CN 2010200378402 U CN2010200378402 U CN 2010200378402U CN 201020037840 U CN201020037840 U CN 201020037840U CN 201621939 U CN201621939 U CN 201621939U
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- CN
- China
- Prior art keywords
- furnace
- heater
- air
- heating device
- cupola
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a cupola furnace with a heating device, which belongs to metal smelting equipment, and comprises a base, a furnace body and a forehearth. A chimney is installed on the furnace body; the furnace body includes a furnace liner and a furnace shell; averaging air pipes are installed on the lower portion of the furnace liner; a feeding port is arranged on the furnace body; the heating device is installed between the furnace liner and the chimney; an air inlet is arranged above the heating device; an air outlet is arranged below the heating device; and the averaging air pipes are communicated with the air outlet below the heating device through air supply pipes and slantingly installed below the furnace liner. By installed the heating device between the furnace liner and the chimney, cold air entering from the air inlet is changed into 100-300 DEG C hot air and conveyed into a furnace chamber through the air supply pipes, thereby the temperature of discharged molten iron is increased, the cost of fuel is reduced to be only a quarter of the original cost, heating efficiency is high, and the cupola furnace can be widely applied to casting industry. Moreover, by slantingly installing an upper averaging air pipe and a lower averaging air pipe on the lower portion of the furnace liner, the cupola furnace decreases air inlet resistance force, realizes even heating, improves heat efficiency, saves labor force, reduces emission of carbon dioxide and protects environment.
Description
Technical field
The utility model relates to a kind of metal melting equipment, a kind of furnace cupola with heater of saying so more specifically.
Background technology
Existing furnace cupola is generally cold blast cupola, owing to adopted cold wind, the coal gas of furnace cupola can not make full use of, on the effective rate of utilization of heat, the heat that furnace gas is taken away is also more than the energy that is used to obtain molten iron, shortcomings such as so most of furnace cupolas all exist the heat effective rate of utilization low, and it is insufficient to burn.As disclosed furnace cupola in the Chinese patent 200420045188.3, its furnace lining heater is arranged at shaft top, and the double as chimney though device structure is simple, can cut down the consumption of energy, and the temperature in this cupola melting district can not be long-pending more high more, and thermal losses is still very big.Chinese patent 200520126636.7 disclosed furnace cupolas and for example, between preheating zone on the body of heater and fusion zone, be provided with the secondary air mouth, though can strengthen the burning of coke, characteristics such as effective use of energy sources, molten iron temperature is low, of low quality but this kind furnace cupola is come out of the stove, CO emission is still very big in the flue gas, influences environment.
The utility model content
The purpose of this utility model is to solve big, the deficiencies such as molten iron temperature is low of coming out of the stove of above-mentioned furnace cupola thermal losses, and a kind of furnace cupola with heater is provided.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
Furnace cupola with heater of the present utility model, comprise pedestal, body of heater, forehearth is equipped with chimney on the body of heater, body of heater comprises furnace lining and furnace shell, averaging wind pipe is equipped with in the furnace lining bottom, also is provided with charge door on the body of heater, between described furnace lining and the chimney heater is housed, the heater top is provided with air inlet, the below is provided with air outlet, and averaging wind pipe is connected by the air outlet of ajutage with the heater below, and tilts to be installed in the furnace lining below.
Further technical scheme is: described heater is made up of the windward band above heating tape and the heating tape and the leeward band of below.
Further technical scheme is: described heating tape is that the heating tube bottom also is equipped with the lower plate that is connected with heating tube at some heating tubes of the inner installation of refractory material protective layer.
Further technical scheme is: described windward band and leeward band are rolled, are welded by steel plate, and the windward band is provided with air inlet and is connected with blast pipe; The leeward band is provided with air outlet and is connected with ajutage.
Further technical scheme is: the installation gradient of described averaging wind pipe below furnace lining is 5 to 30 degree.
Further technical scheme is: the heat-resistant high alloy steel protection tube is equipped with in described heating tube lower end, and heat exchanger tube is that external diameter is 120 millimeters a steel pipe.
Compared with prior art, the beneficial effects of the utility model are: by between furnace lining and chimney heater being housed, the cold wind that air inlet is entered transfers the hot blast of 100 to 300 degree to and sends into burner hearth by ajutage, make and to come out of the stove that molten iron temperature improves, quality is good, output improves four times, and the fuel cost cost is low, only is original 1/4th, efficiency of heating surface height can be widely used in casting industry.And by upper and lower averaging wind pipe being installed, reduce the air intake resistance, it is heated evenly in the furnace lining lower tilt, cut down the consumption of energy, improve the thermal efficiency, and the Cupola Construction with heater of the present utility model is simple, is fit to various occasion metallurgical processing ironwares, is easy to promote.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1, furnace cupola with heater of the present utility model, by pedestal 1, body of heater 2, forehearth 3 is formed, chimney 6 is installed in body of heater 2 tops, body of heater 2 comprises furnace lining 21 and furnace shell 22, averaging wind pipe 5 is equipped with in furnace lining 21 bottoms, body of heater 2 is provided with charge door again, between furnace lining 21 and the chimney 6 heater is housed, heater is made up of with the leeward band 9 of below the windward band 8 of heating tape 10 and 10 tops, heating tape, wherein heating tape 10 is at 15 heat exchanger tubes of the inner installation of refractory material protective layer, the heat exchanger tube bottom also is equipped with the lower plate that is connected with heat exchanger tube, heating tube employing external diameter is 120 millimeters a steel pipe, and the heat-resistant high alloy steel protection tube is equipped with in its lower end, and windward band 8 is to adopt steel plate to roll to be welded with leeward band 9, and the pipe of an end opening, the side of pipe has the hole, and windward band 8 is provided with air inlet and is connected with blast pipe 4; Leeward band 9 is provided with air outlet and is connected with ajutage 7, and averaging wind pipe 5 is connected by the air outlet of ajutage 7 with the heater below, and 25 degree that tilt are installed in furnace lining 21 belows.
The utility model operation principle is: the cold wind that enters from blast pipe is converted to hot blast through heater, by ajutage the hot blast of conversion is sent in the stove again, improved temperature in the stove, and utilized furnace gas heat that carbon monoxide is fully burnt, the effective rate of utilization height of heat, thus molten iron temperature improved.
Claims (6)
1. furnace cupola with heater, comprise pedestal (1), body of heater (2), forehearth (3), chimney (6) is housed on the body of heater (2), body of heater (2) comprises furnace lining (21) and furnace shell (22), averaging wind pipe (5) is equipped with in furnace lining (21) its underpart, body of heater also is provided with charge door on (2), it is characterized in that: between described furnace lining (21) and the chimney (6) heater is housed, the heater top is provided with air inlet, the below is provided with air outlet, and averaging wind pipe (5) is connected by the air outlet of ajutage (7) with the heater below, and tilts to be installed in furnace lining (21) below.
2. the furnace cupola with heater according to claim 1 is characterized in that: described heater is made up of with the leeward band (9) of below the windward band (8) of heating tape (10) and heating tape (10) top.
3. the furnace cupola with heater according to claim 2 is characterized in that: described heating tape (10) are that the heat exchanger tube bottom also is equipped with the lower plate that is connected with heating tube at some heating tubes of the inner installation of refractory material protective layer.
4. the furnace cupola with heater according to claim 2, it is characterized in that: described windward band (8) and leeward band (9) are to be rolled by steel plate to be welded and the pipe of an end opening, the side of pipe has the hole, and windward band (8) is provided with air inlet and is connected with blast pipe (4); Leeward band (9) is provided with air outlet and is connected with ajutage (7).
5. the furnace cupola with heater according to claim 1 is characterized in that: the installation gradient of described averaging wind pipe (5) in furnace lining (21) below is 5 to 30 degree.
6. the furnace cupola with heater according to claim 3 is characterized in that: the heat-resistant high alloy steel protection tube is equipped with in described heating tube lower end, and heating tube is that external diameter is 120 millimeters a steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200378402U CN201621939U (en) | 2010-01-20 | 2010-01-20 | Cupola furnace with heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200378402U CN201621939U (en) | 2010-01-20 | 2010-01-20 | Cupola furnace with heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621939U true CN201621939U (en) | 2010-11-03 |
Family
ID=43025395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200378402U Expired - Fee Related CN201621939U (en) | 2010-01-20 | 2010-01-20 | Cupola furnace with heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621939U (en) |
-
2010
- 2010-01-20 CN CN2010200378402U patent/CN201621939U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20140120 |