CN102676842A - Ignition control system for oxygen top-blown smelting furnace - Google Patents
Ignition control system for oxygen top-blown smelting furnace Download PDFInfo
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- CN102676842A CN102676842A CN2011100581472A CN201110058147A CN102676842A CN 102676842 A CN102676842 A CN 102676842A CN 2011100581472 A CN2011100581472 A CN 2011100581472A CN 201110058147 A CN201110058147 A CN 201110058147A CN 102676842 A CN102676842 A CN 102676842A
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- spray gun
- smelting furnace
- oxygen top
- blown smelting
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Abstract
The invention provides an ignition control system for an oxygen top-blown smelting furnace. The ignition control system comprises the oxygen top-blown smelting furnace, a spray gun supplying air and oil to the oxygen top-blown smelting furnace, an air pipe stop valve controlling the spray gun to supply the air, a fuel oil stop valve controlling the spray gun to supply the oil and a controller, wherein the controller is connected with the spray gun, the air pipe stop valve and the fuel oil stop valve, controls ignition operation of the oxygen top-blown smelting furnace and carries out ignition confirmation. By enabling air supply, oil supply and the like to be correlated with the position of the spray gun, the ignition control system automatically controls the ignition process of the oxygen top-blown smelting furnace, can improve safety degree and reliability of ignition operation and effectively avoids safety accidents.
Description
Technical field
The present invention relates to metallurgical processing and design field, particularly a kind of Iganition control system of oxygen top blown smelting furnace.
Background technology
The oxygen top blown melting is one of non-ferrous metal metallurgy method commonly used.The oxygen top blown smelting furnace adopts the circular body of heater of the flat-top that is lined with refractory brick, and spray gun is inserted in the stove by body of heater, and mixture injection air, oxygen and the fuel of the intravital slag of the fusion in stove, matte and metal guarantee the rapid reaction between raw material and oxygen.It is main that the ignition operation of present oxygen top blown melting is mainly taked manual operation, and still, the means of this manual operation not only safety are low, and control accuracy is poor, therefore is badly in need of improving.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency, particularly proposes a kind of Iganition control system of oxygen top blown smelting furnace.
For achieving the above object, one aspect of the present invention proposes a kind of Iganition control system of oxygen top blown smelting furnace, and this system comprises: the oxygen top blown smelting furnace; To the spray gun of said oxygen top blown smelting furnace air feed and fuel feeding, said spray gun links to each other with oil pipe with airduct; Control the airduct trip valve of said spray gun air feed; Control the fuel-cut valve of said spray gun fuel feeding; Unit, said unit links to each other with said spray gun, said airduct trip valve and said fuel-cut valve, and said unit is controlled the igniting of said oxygen top blown smelting furnace; Said unit is controlled said spray gun and is begun to descend from said stop position behind the said ignition operation of beginning, after judging that said spray gun is positioned at said burning wind connection position; Controlling said airduct trip valve opens; After judging that said spray gun is positioned at said igniting position, control said fuel-cut valve and open, and control said spray gun stop motion; After in preset time, judging the sufficient combustion in the said oxygen top blown smelting furnace, the affirmation of lighting a fire.
In one embodiment of the invention; This system also comprises: dust collecting fan; Said dust collecting fan links to each other with said oxygen top blown smelting furnace with flue through waste heat boiler; And link to each other with said unit, dropping to said burning wind and connect the process of position from the said position of stopping at said spray gun, the rotating speed that said unit is controlled said dust collecting fan is adjusted to minimum.
In one embodiment of the invention; This system also comprises: blow down valve, and said blow down valve links to each other with said unit, controls the purging of said spray gun oil pipe; Begin after said stop position decline at said spray gun; Said unit is controlled said blow down valve and is opened, and after said spray gun was positioned at said igniting position, said unit controlled said blow down valve and cuts out.
In one embodiment of the invention, this system also comprises: fuel oil regulating valve, said fuel oil regulating valve links to each other with said unit, controls the fuel flow of said spray gun oil pipe.
In one embodiment of the invention, this system also comprises: air control valve, said air control valve links to each other with said unit, controls the air flow quantity of said spray gun airduct.
In one embodiment of the invention, this system also comprises: video monitoring apparatus, said video monitoring apparatus links to each other with said oxygen top blown smelting furnace, monitors the combustion case in the said oxygen top blown smelting furnace.
The present invention controls the ignition process of oxygen top blown smelting furnace automatically through air feed, fuel feeding etc. is associated with the spray gun position, can improve the degree of safety and the safety of ignition operation, prevents the generation of security incident effectively.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
The present invention above-mentioned and/or additional aspect and advantage from obviously with easily understanding becoming the description of embodiment, wherein below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of Iganition control system of the oxygen top blown smelting furnace of the embodiment of the invention; And
Fig. 2 is the schema of ignition control method of the oxygen top blown smelting furnace of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Be illustrated in figure 1 as the structure iron of Iganition control system of the oxygen top blown smelting furnace of the embodiment of the invention, should be understood that Fig. 1 is merely schematic structure iron, each position component relation in the system is not limited.This system comprises: oxygen top blown smelting furnace 1, spray gun 2, airduct trip valve 3, fuel-cut valve 4 and unit 5.
Wherein, spray gun 2 links to each other with oil pipe 7 (not shown)s with airduct 6, to oxygen top blown smelting furnace 1 air feed and fuel feeding.Airduct trip valve 3 is located on the airduct 6, and opening airduct trip valve 3 can be through spray gun 2 to oxygen top blown smelting furnace 1 air feed.Fuel-cut valve 4 is located on the oil pipe 7, and opening fuel-cut valve 4 can be through spray gun 2 to oxygen top blown smelting furnace 1 fuel feeding.
Unit 5 links to each other so that the igniting of oxygen top blown smelting furnace 1 is controlled with spray gun 2, airduct trip valve 3 and fuel-cut valve 4.After beginning to carry out ignition operation, unit 5 control spray guns 2 begin to descend from stopping the position; After unit 5 judged that spray guns 2 are positioned at burning wind and connect the position, control airduct trip valve 3 was opened with to oxygen top blown smelting furnace 1 air feed; After unit 5 judged that spray guns 2 are positioned at the igniting position, control fuel-cut valve 4 was opened with to oxygen top blown smelting furnace 1 fuel feeding; Unit 5 is judged the sufficient combustion in the oxygen top blown smelting furnace 1 in preset time after, the affirmation of lighting a fire.
It should be noted that if in preset time, do not light a fire affirmation, then unit 5 control spray guns 2 are promoted to and stop the position.
In an instance of the present invention, this system also comprises dust collecting fan 8.Dust collecting fan 8 links to each other with oxygen top blown smelting furnace 1 with flue 10 through waste heat boiler 9, and links to each other with unit 5.Drop to the process of the wind connection position of burning from stopping the position at spray gun 2, the rotating speed of unit 5 control dust collecting fans 8 is adjusted to minimum value so that combustion chamber draft reaches set(ting)value, guarantees to light a fire and can carry out smoothly better.
In one embodiment of the invention, this system also comprises blow down valve 11.Blow down valve 11 also is located on the oil pipe 7, and links to each other with unit 5.Begin from stopping decline back, position (at this moment, fuel-cut valve 4 cuts out, and oil pipe 7 does not carry out fuel feeding) at spray gun 2, unit 5 control blow down valves 11 are opened so that oil pipe 7 is purged and are prevented that oil pipe 7 from stopping up.After spray gun 2 was positioned at the igniting position, unit 5 control blow down valves 11 cut out.
In one embodiment of the invention, this system also comprises fuel oil regulating valve 12.Fuel oil regulating valve 12 is located on the oil pipe 7, with respect to fuel-cut valve 4 further from spray gun 2.Thereby unit 5 links to each other with fuel oil regulating valve 12 and regulates the control fuel flow with control fuel oil regulating valve 12.For example, after the affirmation of lighting a fire, the aperture of unit 5 control fuel oil regulating valves 12 increases with the increase fuel flow, thereby makes that the burning in the oxygen top blown smelting furnace 1 is more abundant.
In one embodiment of the invention, this system also comprises air control valve 13.Air control valve 13 is located on the airduct 6, with respect to airduct trip valve 3 further from spray gun 2.Thereby unit 5 links to each other with air control valve 13 and regulates the control air flow with control air variable valve 13.Particularly, can preestablish the ratio relation of air flow quantity and fuel flow, unit 5 is regulated with the control air flow according to said ratio relation control air variable valve 13.
In one embodiment of the invention, this system also comprises video monitoring apparatus 14 (not shown)s.Video monitoring apparatus 14 links to each other with oxygen top blown smelting furnace 1, and the flame brightness in the monitoring oxygen top blown smelting furnace 1 can judge according to flame brightness whether the burning in the oxygen top blown smelting furnace is abundant.
Be illustrated in figure 2 as the schema of ignition control method of the oxygen top blown smelting furnace of the embodiment of the invention, in conjunction with the system of the invention described above embodiment, this method may further comprise the steps:
Step S101, unit 5 control spray guns 2 begin to descend from stopping the position.
According to one embodiment of present invention, drop to the process of the wind connection position of burning from stopping the position at spray gun, the rotating speed of unit 5 control dust collecting fans is adjusted to minimum value so that combustion chamber draft reaches set(ting)value, guarantees to light a fire and can carry out smoothly better.In addition, begin from stopping after the position descends at spray gun, unit 5 is also controlled blow down valve 11 and is opened so that spray gun oil pipe 7 is purged and prevent that oil pipe 7 from stopping up.
Step S102, unit 5 judge whether spray gun 2 is positioned at burning wind and connects the position.
Step S103, if unit 5 judges that spray gun 2 is positioned at burning wind and connects the position, then unit 5 control airduct trip valves 3 are opened to oxygen top blown smelting furnace 1 air feed.
Step S104, unit 5 judge whether spray gun 2 is positioned at the igniting position.
Step S105 is positioned at the igniting position if unit 5 is judged spray gun 2, and then unit 5 control fuel-cut valves 4 are opened to oxygen top blown smelting furnace 1 fuel oil is provided, and 2 stop motions of control spray gun.
According to one embodiment of present invention, after spray gun 2 was positioned at the igniting position, unit 5 control blow down valves 11 cut out.
Step S106, unit 5 judge in preset time whether the burning in the oxygen top blown smelting furnace 1 is abundant.
In one embodiment of the invention, can judge through flame brightness whether the burning in the oxygen top blown capacity ovens 1 is abundant through the flame brightness in the video monitoring apparatus 14 monitoring oxygen top blown smelting furnaces 1.
Step S107, if the sufficient combustion that unit 5 is judged in the oxygen top blown smelting furnace 1, the affirmation of then lighting a fire.
In one embodiment of the invention, after the affirmation of lighting a fire, the aperture of unit 5 may command fuel oil regulating valves 12 increases with the increase fuel flow, thereby guarantees that the burning in the oxygen top blown smelting furnace is more abundant.Unit 5 also can according to the ratio relation of air flow quantity that configures and fuel flow correspondingly control air variable valve 13 regulate to regulate air flow quantity.
The present invention controls the ignition process of oxygen top blown smelting furnace automatically through air feed, fuel feeding etc. is associated with the spray gun position, can improve the degree of safety and the safety of ignition operation, prevents the generation of security incident effectively.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (7)
1. the Iganition control system of an oxygen top blown smelting furnace is characterized in that, comprising:
The oxygen top blown smelting furnace;
To the spray gun of said oxygen top blown smelting furnace air feed and fuel feeding, said spray gun links to each other with oil pipe with airduct;
Control the airduct trip valve of said spray gun air feed;
Control the fuel-cut valve of said spray gun fuel feeding;
Unit, said unit links to each other with said spray gun, said airduct trip valve and said fuel-cut valve, and said unit is controlled the igniting of said oxygen top blown smelting furnace; Said unit is controlled said spray gun and is begun to descend from said stop position behind the said ignition operation of beginning, after judging that said spray gun is positioned at said burning wind connection position; Controlling said airduct trip valve opens; After judging that said spray gun is positioned at said igniting position, control said fuel-cut valve and open, and control said spray gun stop motion; After in preset time, judging the sufficient combustion in the said oxygen top blown smelting furnace, the affirmation of lighting a fire.
2. the Iganition control system of oxygen top blown smelting furnace according to claim 1; It is characterized in that; Also comprise: dust collecting fan, said dust collecting fan links to each other with said oxygen top blown smelting furnace with flue through waste heat boiler, and links to each other with said unit; Drop to the process of said burning wind connection position from the said position of stopping at said spray gun, the rotating speed that said unit is controlled said dust collecting fan is adjusted to minimum.
3. the Iganition control system of oxygen top blown smelting furnace according to claim 1 is characterized in that, also comprises: blow down valve; Said blow down valve links to each other with said unit; Control the purging of said spray gun oil pipe, begin after said stop position decline at said spray gun, said unit is controlled said blow down valve and is opened; After said spray gun was positioned at said igniting position, said unit controlled said blow down valve and cuts out.
4. the Iganition control system of oxygen top blown smelting furnace according to claim 1 is characterized in that, also comprises: fuel oil regulating valve, said fuel oil regulating valve links to each other with said unit, controls the fuel flow of said spray gun oil pipe.
5. the Iganition control system of oxygen top blown smelting furnace according to claim 1 is characterized in that, also comprises: air control valve, said air control valve links to each other with said unit, controls the air flow quantity of said spray gun airduct.
6. the Iganition control system of oxygen top blown smelting furnace according to claim 1 is characterized in that, also comprises: video monitoring apparatus, said video monitoring apparatus links to each other with said oxygen top blown smelting furnace, monitors the combustion case in the said oxygen top blown smelting furnace.
7. the Iganition control system of oxygen top blown smelting system according to claim 1 is characterized in that, does not confirm if in said preset time, carry out said igniting, and then said unit is controlled said spray gun and is promoted to said stop position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110058147.2A CN102676842B (en) | 2011-03-10 | 2011-03-10 | The Iganition control system of oxygen top-blown smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110058147.2A CN102676842B (en) | 2011-03-10 | 2011-03-10 | The Iganition control system of oxygen top-blown smelting furnace |
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| CN102676842A true CN102676842A (en) | 2012-09-19 |
| CN102676842B CN102676842B (en) | 2016-01-27 |
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| CN201110058147.2A Active CN102676842B (en) | 2011-03-10 | 2011-03-10 | The Iganition control system of oxygen top-blown smelting furnace |
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| CN2406156Y (en) * | 2000-02-18 | 2000-11-15 | 赵传玉 | Ignition automatic controlling device |
| CN2461935Y (en) * | 2001-01-18 | 2001-11-28 | 北京科技大学 | Secondary burning composite nozzle melting by oil and oxygen |
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| CN1900327A (en) * | 2006-06-01 | 2007-01-24 | 上海宝钢工程技术有限公司 | Standby preheating device and method for molten steel refining vacuum channel |
| CN101033850A (en) * | 2006-03-10 | 2007-09-12 | 上海宝信软件股份有限公司 | Controlling method for air single-preheating partitional directional selecting valve heat accumulating burner |
| CN200972140Y (en) * | 2006-11-16 | 2007-11-07 | 乳源东阳光磁性材料有限公司 | Self-control burning machine |
| CN101082071A (en) * | 2007-06-26 | 2007-12-05 | 江苏永钢集团有限公司 | Control method for oxygen gun blowing place |
| CN101915505A (en) * | 2010-08-25 | 2010-12-15 | 中冶南方(武汉)威仕工业炉有限公司 | Device and method for rapidly reducing temperature of heat treatment furnace |
| CN201714340U (en) * | 2010-06-17 | 2011-01-19 | 陈金刚 | Mobile heating device |
| CN202074844U (en) * | 2011-03-10 | 2011-12-14 | 中国恩菲工程技术有限公司 | Ignition control system for oxygen top-blown smelting furnace |
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2011
- 2011-03-10 CN CN201110058147.2A patent/CN102676842B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406156Y (en) * | 2000-02-18 | 2000-11-15 | 赵传玉 | Ignition automatic controlling device |
| CN2461935Y (en) * | 2001-01-18 | 2001-11-28 | 北京科技大学 | Secondary burning composite nozzle melting by oil and oxygen |
| CN1815084A (en) * | 2006-02-24 | 2006-08-09 | 曹琴 | Gasified efficient energy-saving igniter |
| CN101033850A (en) * | 2006-03-10 | 2007-09-12 | 上海宝信软件股份有限公司 | Controlling method for air single-preheating partitional directional selecting valve heat accumulating burner |
| CN1900327A (en) * | 2006-06-01 | 2007-01-24 | 上海宝钢工程技术有限公司 | Standby preheating device and method for molten steel refining vacuum channel |
| CN200972140Y (en) * | 2006-11-16 | 2007-11-07 | 乳源东阳光磁性材料有限公司 | Self-control burning machine |
| CN101082071A (en) * | 2007-06-26 | 2007-12-05 | 江苏永钢集团有限公司 | Control method for oxygen gun blowing place |
| CN201714340U (en) * | 2010-06-17 | 2011-01-19 | 陈金刚 | Mobile heating device |
| CN101915505A (en) * | 2010-08-25 | 2010-12-15 | 中冶南方(武汉)威仕工业炉有限公司 | Device and method for rapidly reducing temperature of heat treatment furnace |
| CN202074844U (en) * | 2011-03-10 | 2011-12-14 | 中国恩菲工程技术有限公司 | Ignition control system for oxygen top-blown smelting furnace |
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| CN102676842B (en) | 2016-01-27 |
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