CN102676760A - Gas heating energy-saving and environment-friendly annealing furnace for cold-rolling aluminium materials - Google Patents
Gas heating energy-saving and environment-friendly annealing furnace for cold-rolling aluminium materials Download PDFInfo
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- CN102676760A CN102676760A CN201210184648XA CN201210184648A CN102676760A CN 102676760 A CN102676760 A CN 102676760A CN 201210184648X A CN201210184648X A CN 201210184648XA CN 201210184648 A CN201210184648 A CN 201210184648A CN 102676760 A CN102676760 A CN 102676760A
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Abstract
The invention provides a gas heating energy-saving and environment-friendly annealing furnace for cold-rolling aluminium materials, belonging to the equipment for heat treatment. The annealing furnace comprises a furnace body, a trolley and track, a fan, a motor, thermocouples and an electrical control box. The annealing furnace is characterized in that a gas heating system is designed and comprises a combustion chamber, a combustion head, a combustor, a gas pipe, an air inlet pipe, a hot air main and a manhole; the combustor is provided with automatic combustion condition adjusting systems; an air outlet of the fan is communicated with the air inlet pipe of the gas heating system; an air inlet of the fan is communicated with a return air main in an inner cavity of the furnace body; at least upper and lower rows of return air inlets communicated with the return air main are designed on the furnace wall on one side of the inner cavity of the furnace body; and at least upper and lower rows of hot air inlets communicated with the hot air main are designed on the furnace wall on the other side of the inner cavity of the furnace body. Through trial, compared with the existing annealing furnaces adopting nichrome resistance charged heating devices, the annealing furnace has the following beneficial effects that: the energy cost is substantially reduced by more than 70%; and the possibility of environmental pollution caused by volatilization and escape of rolling oil on the surfaces of the cold-rolled aluminium materials in the heating process is completely eradicated.
Description
Technical field: the invention belongs to thermal treatment and use equipment, particularly a kind of fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium.
Background technology: annealing is that workpiece is heated to proper temperature, adopts different soaking times according to material, slowly cools off then, and purpose is metal inside tissue is reached or near equilibrium state, to obtain favorable manufacturability ability and use properties.The existing heating system that is used for cold rolling aluminium heat-treatment of annealing stove adopts the charged heater element of nichrome resistance; An electric heating device power 180-200KW who handles the lehre of 10 tons of cold rolling aluminiums; Add that fan blade is arranged in the stove, forms 2 mixed wind blower fans that respectively need the 63KW driven by motor that the hot blast that mixes in the stove is used, total power consumption reaches more than the 300KW; And because cold rolling aluminium must add ROLLING OIL in the operation of rolling, this organism that contains oxious component gets into the heat-treatment of annealing stove together attached to the surface of the cold rolling aluminium of finished product, and the loss of in heat-processed, volatilizing causes environmental pollution.
This shows, study and design a kind of energy consumption cost that reduced significantly, and don't can cause environmental pollution improvement the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium be necessary.
Summary of the invention: the objective of the invention is to overcome the deficiency of prior art, study and design a kind of energy consumption cost that reduced significantly, and don't can cause the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium of environmental pollution.
Technical scheme of the present invention is: a kind of fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium, comprise the body of heater that thermal insulation material constitutes, and carry and use track with the dolly and the dolly of aluminium; Impel the high temperature resistant blower fan that warm air mixes and circular flow is used in the stove; Fan provides the motor of power, in order to detecting the thermopair that temperature is used in the stove, and the electric control box that is electrically connected with motor, thermopair; It is characterized in that being designed with the gas heating system that comprises following structure: the combustion chamber; Have the combustion head that is positioned at the bottom, combustion chamber, the burner of combustion conditions varitrol, the gas line of supplied burner combustion gas is positioned at the combustion chamber blast pipe bottom, that be communicated in fan outlet; Be positioned at hot-blast main top, combustion chamber one side, that be communicated in the body of heater inner chamber, be designed with access opening on the sidewall of combustion chamber near the bottom; Described fan outlet is communicated in the blast pipe of gas heating system, and air inlet is communicated in and passes the return air house steward that the furnace wall feeds the body of heater inner chamber; Be designed with on the said body of heater inner chamber one wing furnace wall at least up and down and 2 arrange the return air inlet that is communicated with the return air house steward; The hot-air mouth that be designed with at least 2 rows up and down on the opposite side furnace wall of body of heater inner chamber with respect to return air inlet, is communicated with the hot-blast main.
The object of the invention can also take following further technical measures to realize:
Described thermopair is matched with the combustion conditions varitrol through electric control box.The technique effect of this design is to reach the temperature that annealing technology requires when the thermopair that is positioned at stove detects; Through electric control box the combustion conditions varitrol is sent instruction that reduce to use the combustion gas that pipeline supplies with, the gas quantity that gets into combustion head reduces to only need be kept interior the keeping of temperature of stove and add heat.
The described hot-air mouth that is communicated with the hot-blast main, be arranged in hot-air channel that the hot-blast main communicates on, by its big or small hot-air mouth of the little gate control of hot-air mouth movably.The described return air inlet that is communicated with the return air house steward, be arranged on the return air channel that communicates with the return air house steward, by its big or small return air inlet of the little gate control of return air inlet movably.The technique effect of these two designs is selected the upper and lower position of inboard wall of furnace body through heat, return air channel; Move the wicket control heat on heat, the return air inlet, the size of return air amount, to reach the temperature head allowed band that temperature head everywhere that the body of heater inner chamber comprises four jiaos requires less than annealing technology.
Described hot-air channel that communicates with the hot-blast main or the position of return air channel on the body of heater intracavity sidewall that communicates with the return air house steward are higher than at least carries the distance of leaving body of heater inner chamber ground with the dolly panel of aluminium.The technique effect of this design is both to have avoided getting into the damage of the high temperature air of body of heater inner chamber to dolly bottom roller centre bearer from the hot-air mouth of hot-air channel, lets hot blast be directed against the pending aluminium that is loaded on the dolly again just and heats up or be incubated.
Described year with the dolly of aluminium and dolly with in the track, its intermarginal crack of panel four avris is matched with body of heater inner chamber wall after dolly gets in the stove fully.The technique effect of this design is to make the relative seal in the upper and lower space of dolly panel, and both having reduced the body of heater inner chamber needs the space of heating up, being incubated and reduce energy consumption; Avoided dolly bottom roller centre bearer Yin Gaowen to damage again.
Dolly and dolly with aluminium were attached with the thermal insulation layer that thermal insulation material constitutes below the panel of dolly in the track in described year.The technique effect of this design is both to have improved the panel above spatial heat insulation effect of the dolly that the body of heater inner chamber needs to heat up, be incubated and reduce energy consumption; Avoided the too high damage that causes the trolley idler wheels centre bearer of temperature of dolly lower space again.
The dynamic running process of the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium that the present invention's enforcement obtains is following:
With the cold rolling aluminium of treating anneal, be loaded on the dolly like the aluminum strip of rolling, push predetermined position in the stove along track, close fire door; Through the electric control box starter motor, drive fan operation; Open the valve ignition combustion device of liquefied gas pipeline, the combustion head that is positioned at the combustion chamber jets out flames, will be by way of the air heating of burning number chamber; Along the hot-blast main, get into stove, give the cold rolling aluminium intensification of treating anneal at the air of heating under the ordering about of blower fan gradually from the many heat extractions air port that is positioned on the body of heater inner chamber furnace wall that is communicated with the hot-blast main; Because being communicated in, the blast inlet of blower fan passes the return air house steward that the furnace wall feeds the body of heater inner chamber; And that the return air house steward is communicated with is relative with hot-air mouth with many rows, be positioned at the air port that flows back on the body of heater inner chamber furnace wall more; Heated the air after the cooling of the cold rolling aluminium of treating anneal; In company with the organism that contains oxious component of the ROLLING OIL volatilization loss of the cold rolling aluminium material surface of treating anneal, sucked by blower fan together; Immediately through the blast pipe entering combustion chamber of fan outlet along gas heating system; In the flame of combustion head ejection; Air after the cooling obtains heating; Along the hot-blast main, get into stove, treated that the cold rolling aluminium of anneal heats up at the air of heating under the ordering about of blower fan gradually again, so circulated from the many heat extractions air port that is positioned on the body of heater inner chamber furnace wall that is communicated with the hot-blast main.
Meanwhile; Obtained burning by the organism that contains oxious component of the ROLLING OIL volatilization loss of blower fan suction combustion chamber together; The burning of the organism that contains oxious component in the combustion chamber of ROLLING OIL volatilization loss; The consumption of combustion gas that both produced saving of heat the more important thing is and stopped its loss of in heat-processed, volatilizing, and causes the possibility of environmental pollution.
Temperature reaches the temperature of annealing technology requirement in the stove in order to make, and is incubated for some time, and the burner that in temperature-rise period, has the combustion conditions varitrol uses the liquefied gas of pipeline supply in full amount; When detecting, the thermopair that is positioned at stove reaches the temperature that annealing technology requires; Through electric control box the combustion conditions varitrol is sent instruction that reduce to use the combustion gas that pipeline supplies with, the gas quantity that gets into combustion head reduces to only need be kept interior the keeping of temperature of stove and add heat.
The fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium that the present invention's enforcement obtains through on probation, is compared with the existing lehre that is used for cold rolling aluminium thermal treatment, the charged heater element of heating system employing nichrome resistance, has shown following beneficial effect:
1, reduced energy consumption cost significantly.Lehre with 10 tons of cold rolling aluminiums of same processing is an example; The lehre electric heating device power 180-200KW of prior art adds the 60KW motor of 2 drive blower fans, and per hour total power consumption reaches more than the 300KWh; By 1 yuan of every kilowatthour tariff, kilowatthour rate, energy cost reaches more than 300 yuan; And the lehre that the present invention implements to obtain adopts gas heating system; Per hour consume liquefied gas 10Kg; If use the pipe natural gas consumption also can lack slightly, add 1 5KW, drive to impel and mix in the stove and the motor of the blower fan that the circular flow hot blast is used, by 8 yuan of gas prices of per kilogram liquefaction, 1 yuan of every kilowatthour tariff, kilowatthour rate; Per hour energy cost is only 85 yuan, has reduced energy cost significantly and has reached more than 70%.
2, can not cause environmental pollution.As stated; Obtained burning by the organism that contains oxious component of the ROLLING OIL volatilization loss of blower fan suction combustion chamber together; The burning of the organism that contains oxious component in the combustion chamber of ROLLING OIL volatilization loss; The consumption of combustion gas that both produced saving of heat the more important thing is and stopped its loss of in heat-processed, volatilizing, and causes the possibility of environmental pollution.
Description of drawings: Fig. 1 is the synoptic diagram that meets thematic structure of the present invention; Fig. 2 is hot-air mouth and hot-air channel structural representation; Fig. 3 is return air inlet and return air channel structural representation.
Embodiment: with implementation detail explanation of the present invention as follows below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium comprises the body of heater 1 that thermal insulation material constitutes; Carry with the dolly of aluminium and dolly with track 2; Impel the high temperature resistant blower fan 3 that warm air mixes and circular flow is used in the stove, fan provides the motor 4 of power, in order to detect the thermopair 5 that temperature is used in the stove; Electric control box 6 with motor, thermopair are electrically connected is characterized in that being designed with
---comprise the gas heating system 7 of following structure: combustion chamber 70; Have the combustion head 71 that is positioned at the bottom, combustion chamber, the burner 73 of combustion conditions varitrol 72; The gas line 74 of supplied burner combustion gas; Be positioned at combustion chamber blast pipe 75 bottom, that be communicated in fan outlet, be positioned at hot-blast main 76 top, combustion chamber one side, that be communicated in the body of heater inner chamber, be designed with access opening 77 on the sidewall of combustion chamber near the bottom;
---described blower fan 3 air outlets are communicated in the blast pipe 75 of gas heating system 7, and blower fan 3 blast inlets are communicated in and pass the return air house steward 31 that the furnace wall feeds the body of heater inner chamber;
---be designed with on the said body of heater inner chamber one wing furnace wall at least up and down and 2 arrange the return air inlet 311 that is communicated with the return air house steward; The hot-air mouth 761 that be designed with at least 2 rows up and down on the opposite side furnace wall of body of heater inner chamber with respect to return air inlet, is communicated with the hot-blast main.
As shown in Figure 1, described thermopair 5 is matched with combustion conditions varitrol 72 through electric control box 6.
As shown in Figure 2, the described hot-air mouth that is communicated with the hot-blast main 761, be arranged on the hot-air channel 762 that communicates with hot-blast main 76, by 763 its big or small hot-air mouths of control of hot-air mouth wicket movably.
As shown in Figure 3, the described return air inlet that is communicated with the hot-blast main 311, be arranged on the return air channel 312 that communicates with return air house steward 31, by 313 its big or small return air inlets of control of return air inlet wicket movably.
Like Fig. 1,2, shown in 3, described hot-air channel 762 that communicates with hot-blast main 76 or the position of return air channel 312 on the body of heater intracavity sidewall that communicates with return air house steward 31 are higher than at least carries the distance of leaving body of heater inner chamber ground with dolly 2 panels of aluminium.
As shown in Figure 1, described year with the dolly of aluminium and dolly with in the track 2, its intermarginal crack of panel four avris is matched with body of heater 1 inner chamber wall after in the complete full entering stove of dolly.
As shown in Figure 1, dolly and dolly with aluminium were attached with the thermal insulation layer 21 that thermal insulation material constitutes below the panel of dolly in the track 2 in described year.
In the practical implementation, the said burner with combustion conditions varitrol, high temperature resistant blower fan, motor, the thermopair etc. of comprising are all chosen from market, and all the other adopt common process to implement.
Claims (7)
1. fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium; Comprise the body of heater (1) that thermal insulation material constitutes, carry with the dolly of aluminium and dolly, impel the also high temperature resistant blower fan (3) used of circular flow of warm air mixing in the stove with track (2); Fan provides the motor (4) of power; In order to detect the thermopair (5) that temperature is used in the stove, the electric control box (6) with motor, thermopair are electrically connected is characterized in that being designed with
---comprise the gas heating system (7) of following structure: combustion chamber (70); Have the combustion head (71) that is positioned at the bottom, combustion chamber, the burner (73) of combustion conditions varitrol (72); The gas line of supplied burner combustion gas (74); Be positioned at combustion chamber blast pipe (75) bottom, that be communicated in fan outlet, be positioned at hot-blast main (76) top, combustion chamber one side, that be communicated in the body of heater inner chamber, be designed with access opening (77) on the sidewall of combustion chamber near the bottom;
---described blower fan (3) air outlet is communicated in the blast pipe (75) of gas heating system (7), and blower fan (3) blast inlet is communicated in and passes the return air house steward (31) that the furnace wall feeds the body of heater inner chamber;
---be designed with on the said body of heater inner chamber one wing furnace wall at least up and down and 2 arrange the return air inlet (311) that is communicated with the return air house steward; The hot-air mouth (761) that be designed with at least 2 rows up and down on the opposite side furnace wall of body of heater inner chamber with respect to return air inlet, is communicated with the hot-blast main.
2. the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium according to claim 1 is characterized in that described thermopair (5) is matched with combustion conditions varitrol (72) through electric control box (6).
3. the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium according to claim 1; It is characterized in that the described hot-air mouth that is communicated with the hot-blast main (761), be arranged on the hot-air channel (762) that communicates with hot-blast main (76), control its big or small hot-air mouth by removable hot-air mouth wicket (763).
4. the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium according to claim 1; It is characterized in that the described return air inlet that is communicated with the hot-blast main (311), be arranged on the return air channel (312) that communicates with return air house steward (31), control its big or small return air inlet by removable return air inlet wicket (313).
5. according to claim 1 or the 3 or 4 described fuel gas heating energy-saving environmental protection lehres that are used for cold rolling aluminium, it is characterized in that described hot-air channel (762) that communicates with hot-blast main (76) or the position of return air channel (312) on the body of heater intracavity sidewall that communicates with return air house steward (31) are higher than at least to carry dolly and dolly with aluminium leave body of heater inner chamber ground with dolly panel in the track (2) distance.
6. the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium according to claim 1; It is characterized in that described year with the dolly of aluminium and dolly with in the track (2), its intermarginal crack of panel four avris is matched with body of heater (1) inner chamber wall after dolly gets in the stove fully.
7. the fuel gas heating energy-saving environmental protection lehre that is used for cold rolling aluminium according to claim 1 is characterized in that described year dolly and dolly with aluminium are attached with the thermal insulation layer (21) that thermal insulation material constitutes below the panel of dolly in the track (2).
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| CN201210184648.XA CN102676760B (en) | 2012-06-06 | 2012-06-06 | Gas heating energy-saving and environment-friendly annealing furnace for cold-rolling aluminium materials |
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| CN201210184648.XA CN102676760B (en) | 2012-06-06 | 2012-06-06 | Gas heating energy-saving and environment-friendly annealing furnace for cold-rolling aluminium materials |
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| CN102676760B CN102676760B (en) | 2014-07-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630691A (en) * | 2015-01-27 | 2015-05-20 | 中国石油化工股份有限公司 | Stainless steel surface oxidation treatment device |
| CN106048196A (en) * | 2016-08-01 | 2016-10-26 | 河南省天利工业炉有限公司 | Trolley type gas preheating furnace |
| CN106048197A (en) * | 2016-08-01 | 2016-10-26 | 河南省天利工业炉有限公司 | Hot air circulating type trolley gas preheating furnace |
| CN106077411A (en) * | 2016-06-21 | 2016-11-09 | 胡俊 | A kind of New temperature automatically controls forge furnace |
| CN107893203A (en) * | 2017-11-30 | 2018-04-10 | 宁波博恩电气有限公司 | Capacitor aluminium sheet homogenizing annealing method |
| CN107916381A (en) * | 2017-11-30 | 2018-04-17 | 宁波博恩电气有限公司 | Aluminium foil used in capacitor annealing device |
| CN109425226A (en) * | 2017-08-31 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of off-line baking equipment |
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| CN102423750A (en) * | 2011-10-24 | 2012-04-25 | 镇江市万源电子有限公司 | Energy-saving environmental-friendly gas heating system of curing tunnel of coating machine |
| CN102477481A (en) * | 2010-11-23 | 2012-05-30 | 丹阳市江南工业炉有限公司 | Large-scale trolley-type gas low-temperature annealing furnace |
| CN202730181U (en) * | 2012-06-06 | 2013-02-13 | 镇江市万源电子有限公司 | Energy saving and environment protecting annealing furnace used for gas heating of cold rolling aluminium products |
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| CN102477481A (en) * | 2010-11-23 | 2012-05-30 | 丹阳市江南工业炉有限公司 | Large-scale trolley-type gas low-temperature annealing furnace |
| CN102423750A (en) * | 2011-10-24 | 2012-04-25 | 镇江市万源电子有限公司 | Energy-saving environmental-friendly gas heating system of curing tunnel of coating machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630691A (en) * | 2015-01-27 | 2015-05-20 | 中国石油化工股份有限公司 | Stainless steel surface oxidation treatment device |
| CN106077411A (en) * | 2016-06-21 | 2016-11-09 | 胡俊 | A kind of New temperature automatically controls forge furnace |
| CN106077411B (en) * | 2016-06-21 | 2018-05-18 | 上海长特锻造有限公司 | A kind of temperature automatic control forge furnace |
| CN106048196A (en) * | 2016-08-01 | 2016-10-26 | 河南省天利工业炉有限公司 | Trolley type gas preheating furnace |
| CN106048197A (en) * | 2016-08-01 | 2016-10-26 | 河南省天利工业炉有限公司 | Hot air circulating type trolley gas preheating furnace |
| CN106048196B (en) * | 2016-08-01 | 2017-10-20 | 河南天利热工装备股份有限公司 | Bogie type gas preheating furnace |
| CN109425226A (en) * | 2017-08-31 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of off-line baking equipment |
| CN109425226B (en) * | 2017-08-31 | 2020-03-06 | 宝山钢铁股份有限公司 | Off-line baking equipment |
| CN107893203A (en) * | 2017-11-30 | 2018-04-10 | 宁波博恩电气有限公司 | Capacitor aluminium sheet homogenizing annealing method |
| CN107916381A (en) * | 2017-11-30 | 2018-04-17 | 宁波博恩电气有限公司 | Aluminium foil used in capacitor annealing device |
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| CN102676760B (en) | 2014-07-16 |
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