CN102676842B - The Iganition control system of oxygen top-blown smelting furnace - Google Patents
The Iganition control system of oxygen top-blown smelting furnace Download PDFInfo
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- CN102676842B CN102676842B CN201110058147.2A CN201110058147A CN102676842B CN 102676842 B CN102676842 B CN 102676842B CN 201110058147 A CN201110058147 A CN 201110058147A CN 102676842 B CN102676842 B CN 102676842B
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- spray gun
- smelting furnace
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- oxygen top
- blown smelting
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Abstract
The present invention proposes a kind of Iganition control system of oxygen top-blown smelting furnace, and this system comprises: oxygen top-blown smelting furnace; To the spray gun of oxygen top-blown smelting furnace air feed and fuel feeding; Control the airduct trip valve of spray gun air feed; Control the fuel-cut valve of spray gun fuel feeding; And controller, it is connected with fuel-cut valve with spray gun, airduct trip valve, controls the ignition operation of oxygen top-blown smelting furnace, and carries out ignition confirming.The present invention, by air feed, confession wet goods being associated with Burners Positions, automatically controlling the ignition process of oxygen top-blown smelting furnace, can improve degree of safety and the reliability of ignition operation, effectively prevent the generation of security incident.
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
Oxygen top blown melting is one of conventional method of non-ferrous metal metallurgy.Oxygen top-blown smelting furnace adopts the circular body of heater of the flat-top being lined with refractory brick, and spray gun inserts in stove by body of heater, and the mixture to the slag in the molten mass in stove, matte and metal sprays air, oxygen and fuel, ensures the rapid reaction between raw material and oxygen.The ignition operation of current oxygen top blown melting mainly takes manual operation to be main, but not only reliability is low for the means of this manual operation, and control accuracy is poor, is therefore badly in need of improving.
Summary of the invention
Object of the present invention is intended at least solve 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: oxygen top-blown smelting furnace, to the spray gun of described oxygen top-blown smelting furnace air feed and fuel feeding, described spray gun is connected with oil pipe with airduct, control the airduct trip valve of described spray gun air feed, control the fuel-cut valve of described spray gun fuel feeding, controller, described controller and described spray gun, described airduct trip valve is connected with described fuel-cut valve, the igniting of described controller to described oxygen top-blown smelting furnace controls, described controller is after the described ignition operation of beginning, control described spray gun to decline from described stop position, after judging that described spray gun is positioned at described burning wind connection position, control described airduct trip valve to open, after judging that described spray gun is positioned at described ignition position, control described fuel-cut valve to open, and control described spray gun stop motion, after judging the sufficient combustion in described oxygen top-blown smelting furnace within the predetermined time, carry out ignition confirming.
In one embodiment of the invention, this system also comprises: dust collecting fan, described dust collecting fan is connected with described oxygen top-blown smelting furnace with flue by waste heat boiler, and be connected with described controller, drop to described burning wind at described spray gun from described stop position to connect the process of position, the rotating speed that described controller controls described dust collecting fan is adjusted to minimum.
In one embodiment of the invention, this system also comprises: blow down valve, described blow down valve is connected with described controller, control the purging of described spray gun oil pipe, start after the decline of described stop position at described spray gun, described controller controls described blow down valve and opens, and after described spray gun is positioned at described ignition position, described controller controls described blow down valve and cuts out.
In one embodiment of the invention, this system also comprises: fuel oil regulating valve, and described fuel oil regulating valve is connected with described controller, controls the fuel flow of described spray gun oil pipe.
In one embodiment of the invention, this system also comprises: air control valve, and described air control valve is connected with described controller, controls the air flow quantity of described spray gun airduct.
In one embodiment of the invention, this system also comprises: video monitoring apparatus, and described video monitoring apparatus is connected with described oxygen top-blown smelting furnace, monitors the combustion case in described oxygen top-blown smelting furnace.
The present invention, by air feed, confession wet goods being associated with Burners Positions, automatically controlling the ignition process of oxygen top-blown smelting furnace, can improve degree of safety and the reliability of ignition operation, effectively prevent the generation of security incident.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the structural representation of the Iganition control system of the oxygen top-blown smelting furnace of the embodiment of the present invention; And
Fig. 2 is the schema of the ignition control method of the oxygen top-blown smelting furnace of the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Be illustrated in figure 1 the structure iron of the Iganition control system of the oxygen top-blown smelting furnace of the embodiment of the present invention, should be understood that Fig. 1 is only schematic structure iron, the position relationship of all parts in 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 controller 5.
Wherein, spray gun 2 is connected with oil pipe 7 (not shown) with airduct 6, to oxygen top-blown smelting furnace 1 air feed and fuel feeding.Airduct trip valve 3 is located on airduct 6, opens airduct trip valve 3 by spray gun 2 to oxygen top-blown smelting furnace 1 air feed.Fuel-cut valve 4 is located on oil pipe 7, opens fuel-cut valve 4 by spray gun 2 to oxygen top-blown smelting furnace 1 fuel feeding.
Controller 5 is connected to control the igniting of oxygen top-blown smelting furnace 1 with spray gun 2, airduct trip valve 3 and fuel-cut valve 4.After starting to carry out ignition operation, controller 5 controls spray gun 2 and declines from stop position; Judge that spray gun 2 is positioned at burning wind and connects behind position at controller 5, control airduct trip valve 3 and open with to oxygen top-blown smelting furnace 1 air feed; After controller 5 judges that spray gun 2 is positioned at ignition position, control fuel-cut valve 4 and open with to oxygen top-blown smelting furnace 1 fuel feeding; After controller 5 judges the sufficient combustion in oxygen top-blown smelting furnace 1 within the predetermined time, carry out ignition confirming.
It should be noted, if do not carry out ignition confirming within the predetermined time, then controller 5 controls spray gun 2 and is promoted to stop position.
In an example of the present invention, this system also comprises dust collecting fan 8.Dust collecting fan 8 is connected with oxygen top-blown smelting furnace 1 with flue 10 by waste heat boiler 9, and is connected with controller 5.Drop to burning wind at spray gun 2 connect the process of position from stopping position, the rotating speed that controller 5 controls dust collecting fan 8 is adjusted to minimum value and reaches set(ting)value to make combustion chamber draft, ensures that igniting can be carried out better smoothly.
In one embodiment of the invention, this system also comprises blow down valve 11.Blow down valve 11 is also located on oil pipe 7, and is connected with controller 5.After spray gun 2 starts to decline from stop position (now, fuel-cut valve 4 cuts out, and oil pipe 7 does not carry out fuel feeding), controller 5 controls blow down valve 11 and opens and prevent oil pipe 7 from blocking to carry out purging to oil pipe 7.After spray gun 2 is positioned at ignition position, controller 5 controls blow down valve 11 and cuts out.
In one embodiment of the invention, this system also comprises fuel oil regulating valve 12.Fuel oil regulating valve 12 is located on oil pipe 7, relative to fuel-cut valve 4 further from spray gun 2.Controller 5 is connected with fuel oil regulating valve 12 and carries out regulating thus controlling fuel flow to control fuel oil regulating valve 12.Such as, after carrying out ignition confirming, the aperture that controller 5 controls fuel oil regulating valve 12 increases to increase fuel flow, thus makes the burning in oxygen top-blown smelting furnace 1 more abundant.
In one embodiment of the invention, this system also comprises air control valve 13.Air control valve 13 is located on airduct 6, relative to airduct trip valve 3 further from spray gun 2.Controller 5 is connected with air control valve 13 and carries out regulating thus controlling air flow quantity to control air control valve 13.Particularly, can preset the ratio relation of air flow quantity and fuel flow, controller 5 controls air control valve 13 according to described ratio relation to carry out regulating to control air flow quantity.
In one embodiment of the invention, this system also comprises video monitoring apparatus 14 (not shown).Whether video monitoring apparatus 14 is connected with oxygen top-blown smelting furnace 1, the flame brightness in monitoring oxygen top-blown smelting furnace 1, abundant according to the burning that flame brightness can judge in oxygen top-blown smelting furnace.
Be illustrated in figure 2 the schema of the ignition control method of the oxygen top-blown smelting furnace of the embodiment of the present invention, in conjunction with the system of the invention described above embodiment, the method comprises the following steps:
Step S101, controller 5 controls spray gun 2 and declines from stop position.
According to one embodiment of present invention, drop to burning wind at spray gun connect the process of position from stopping position, the rotating speed that controller 5 controls dust collecting fan is adjusted to minimum value and reaches set(ting)value to make combustion chamber draft, ensures that igniting can be carried out better smoothly.In addition, after spray gun starts to decline from stop position, controller 5 also controls blow down valve 11 and opens and prevent oil pipe 7 from blocking to carry out purging to spray gun oil pipe 7.
Step S102, controller 5 judges whether spray gun 2 is positioned at burning wind and connects position.
Step S103, if controller 5 judges that spray gun 2 is positioned at burning wind and connects position, then controller 5 controls airduct trip valve 3 and opens to oxygen top-blown smelting furnace 1 air feed.
Step S104, controller 5 judges whether spray gun 2 is positioned at ignition position.
Step S105, if controller 5 judges that spray gun 2 is positioned at ignition position, then controller 5 controls fuel-cut valve 4 and opens and provide fuel oil to oxygen top-blown smelting furnace 1, and controls spray gun 2 stop motion.
According to one embodiment of present invention, after spray gun 2 is positioned at ignition position, controller 5 controls blow down valve 11 and cuts out.
Step S106, controller 5 judges that whether the burning in oxygen top-blown smelting furnace 1 is abundant within the predetermined time.
In one embodiment of the invention, monitor the flame brightness in oxygen top-blown smelting furnace 1 by video monitoring apparatus 14, whether the burning judged in oxygen top blown capacity ovens 1 by flame brightness is abundant.
Step S107, if controller 5 judges the sufficient combustion in oxygen top-blown smelting furnace 1, then carries out ignition confirming.
In one embodiment of the invention, after carrying out ignition confirming, the aperture that controller 5 can control fuel oil regulating valve 12 increases to increase fuel flow, thus ensures that the burning in oxygen top-blown smelting furnace is more abundant.Controller 5 also can correspondingly control air control valve 13 according to the ratio relation of the air flow quantity set and fuel flow to carry out regulating air flow quantity.
The present invention, by air feed, confession wet goods being associated with Burners Positions, automatically controlling the ignition process of oxygen top-blown smelting furnace, can improve degree of safety and the reliability of ignition operation, effectively prevent the generation of security incident.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (3)
1. an Iganition control system for oxygen top-blown smelting furnace, is characterized in that, comprising:
Oxygen top-blown smelting furnace;
To the spray gun of described oxygen top-blown smelting furnace air feed and fuel feeding, described spray gun is connected with oil pipe with airduct;
Control the airduct trip valve of described spray gun air feed;
Control the fuel-cut valve of described spray gun fuel feeding;
Controller, described controller and described spray gun, described airduct trip valve is connected with described fuel-cut valve, the igniting of described controller to described oxygen top-blown smelting furnace controls, described controller is after the described ignition operation of beginning, control described spray gun to decline from stop position, after judging that described spray gun is positioned at burning wind connection position, control described airduct trip valve to open, after judging that described spray gun is positioned at ignition position, control described fuel-cut valve to open, and control described spray gun stop motion, after judging the sufficient combustion in described oxygen top-blown smelting furnace within the predetermined time, carry out ignition confirming,
Dust collecting fan, described dust collecting fan is connected with described oxygen top-blown smelting furnace with flue by waste heat boiler, and be connected with described controller, drop to described burning wind at described spray gun from described stop position and connect the process of position, the rotating speed that described controller controls described dust collecting fan is adjusted to minimum;
Video monitoring apparatus, described video monitoring apparatus is connected with described oxygen top-blown smelting furnace, monitors the flame brightness in described oxygen top-blown smelting furnace;
Fuel oil regulating valve, described fuel oil regulating valve is connected with described controller, controls the fuel flow of described spray gun oil pipe, and wherein, after carrying out ignition confirming, the aperture that described controller controls described fuel oil regulating valve increases to increase described fuel flow;
Air control valve, described air control valve is connected with described controller, control the air flow quantity of described spray gun airduct, wherein, preset the ratio relation of described air flow quantity and fuel flow, described controller controls described air control valve according to described ratio relation to carry out regulating to control described air flow quantity.
2. the Iganition control system of oxygen top-blown smelting furnace according to claim 1, it is characterized in that, also comprise: blow down valve, described blow down valve is connected with described controller, control the purging of described spray gun oil pipe, start after the decline of described stop position at described spray gun, described controller controls described blow down valve and opens, after described spray gun is positioned at described ignition position, described controller controls described blow down valve and cuts out.
3. the Iganition control system of oxygen top blown melting according to claim 1, is characterized in that, if do not carry out described ignition confirming within described predetermined time, then described controller controls described spray gun and is promoted to described stop position.
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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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| 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 CN102676842A (en) | 2012-09-19 |
| CN102676842B true CN102676842B (en) | 2016-01-27 |
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| 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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Patent Citations (10)
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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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| CN102676842A (en) | 2012-09-19 |
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