CN105737628A - Novel regenerative combustion system for aluminum melting furnace - Google Patents
Novel regenerative combustion system for aluminum melting furnace Download PDFInfo
- Publication number
- CN105737628A CN105737628A CN201610255726.9A CN201610255726A CN105737628A CN 105737628 A CN105737628 A CN 105737628A CN 201610255726 A CN201610255726 A CN 201610255726A CN 105737628 A CN105737628 A CN 105737628A
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- CN
- China
- Prior art keywords
- combustion system
- regenerative combustion
- melting furnace
- regenerator
- regenerative
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/007—Systems for reclaiming waste heat including regenerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
- F27D2019/0043—Amount of air or O2 to the burner
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention provides a novel regenerative combustion system for an aluminum melting furnace. The system comprises a combustion chamber, an air blower, a draught fan and a discharge flue and further comprises vent pipelines, a plurality of three-way reversing valves and a plurality of regenerative chambers, wherein structures in the combustion system are connected through the vent pipelines, the three-way reversing valves are arranged on the vent pipelines, and the regenerative chambers have a function of heat storage. The regenerative chambers are connected with the combustion chamber through the vent pipelines and include a heating state and a cooling state, wherein the heating state refers to heat storage when hot flue gas flows through, and the cooling state refers to heating of cold air entering the combustion chamber. The regenerative chambers include at least one regenerative chamber in the cooling state and at least one regenerative chamber in the heating state. The valve positions of the thee-way reversing valves are changed periodically to realize periodical state change of the regenerative chambers. By the regenerative chambers as a heat buffering structure, the problem of temporal and spatial heat imbalance is solved. In addition, the temperature of discharged flue gas is lowered while utilization efficiency of fuel gas in the combustion chamber is improved.
Description
Technical field
The present invention relates to aluminium melting furnace technical field, particularly relate to the Regenerative Combustion System of a kind of novel aluminium melting furnace.
Background technology
In the aluminium melting furnace of existing use designs, the flue gas that usual burner hearth produces all can directly be driven by air-introduced machine, is discharged by smokejack.But the flue-gas temperature that said method is discharged is higher, the subsequent treatment being unfavorable in smokejack to flue gas, the impact of environment is also relatively larger.Meanwhile, the method for above-mentioned direct discharge also makes the heat in the high-temperature flue gas that stove chamber inner combustion produces also without being fully utilized, and combustion gas service efficiency is not high, and it does not also meet the trend trend of current energy-conserving and environment-protective.
Therefore, prior art need development.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, it is an object of the invention to provide the Regenerative Combustion System of a kind of novel aluminium melting furnace, it is intended to solve the flue-gas temperature of aluminium melting furnace discharge in prior art higher, the problem that the heat in high-temperature flue gas cannot be recycled.
In order to achieve the above object, this invention takes techniques below scheme:
The Regenerative Combustion System of a kind of novel aluminium melting furnace, including burner hearth, aerator, air-introduced machine and smokejack.Wherein, described Regenerative Combustion System also includes: for connecting the breather line of each structure in described combustion system, be arranged on the some three-way diverter valves on described breather line and some regenerator with thermal storage capability；
Described regenerator is connected with burner hearth by described breather line, flows through including being in heat smoke, the cooling state that the heated condition of storing heat or the cold air for entering burner hearth heat；
Several regenerator described include at least one regenerator being in cooling state and at least one is in the regenerator of heated condition；
The valve location periodic transformation of described three-way diverter valve is so that the period of state of regenerator sexually revises.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, is provided with some heat-storing spheres in described regenerator.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described Regenerative Combustion System includes two regenerator, is separately positioned on the both sides of described burner hearth.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described Regenerative Combustion System includes two three-way diverter valves.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described Regenerative Combustion System also includes a control module；Described control module is used for receiving user instruction, the described Regenerative Combustion System work of automatic or passive control.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described control module also includes alarm unit, and described alarm unit is for when improper phenomenon occurs in certain ad hoc structure in described Regenerative Combustion System, issuing the user with alarm signal.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described control module also includes display unit, for showing parameter setting and the user interface of described Regenerative Combustion System to user.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described control system also includes the input-output apparatus mutual with user；
Described input-output apparatus at least includes a speaker and alarm signal display lamp；Described speaker and alarm signal display lamp for showing sound and light alarm signal after warning.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described input-output apparatus also includes an ann reset button, is used for receiving user instruction, releases described sound and light alarm signal.
The Regenerative Combustion System of described novel aluminium melting furnace, wherein, described input-output apparatus also includes for receiving user instruction, stops the scram button of described Regenerative Combustion System running.
Beneficial effect: the Regenerative Combustion System of a kind of novel aluminium melting furnace provided by the invention, is provided with regenerator as heat buffer structure, solves thermal time spatially unbalanced problem.By changing the valve location of three-way tube valve, in conjunction with described regenerator, can effectively utilize the heat in high-temperature flue gas to be heated for entering the air of burning in burner hearth, reduce the temperature of discharge flue gas while improving the combustion gas service efficiency in burner hearth, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Regenerative Combustion System of the novel aluminium melting furnace of the specific embodiment of the invention.
Fig. 2 is the structured flowchart of the control system of the Regenerative Combustion System of the novel aluminium melting furnace of the specific embodiment of the invention.
Detailed description of the invention
The present invention provides the Regenerative Combustion System of a kind of novel aluminium melting furnace.For making the purpose of the present invention, technical scheme and effect clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, be the Regenerative Combustion System of a kind of novel aluminium melting furnace of the specific embodiment of the invention.The Regenerative Combustion System of described novel aluminium melting furnace includes: burner hearth 10, aerator 20, air-introduced machine 30 and smokejack 40.
Described Regenerative Combustion System also includes: for connecting the breather line 50 of each structure in described combustion system, be arranged on the some three-way diverter valves on described breather line (61 or 62) and some regenerator (71 or 72) with thermal storage capability.
Described regenerator is connected with burner hearth by described breather line, flows through including being in heat smoke, the cooling state that the heated condition of storing heat or the cold air for entering burner hearth heat.Several regenerator described include at least one regenerator being in cooling state and at least one is in the regenerator of heated condition.
That is, the high-temperature flue gas discharged in burner hearth first passes through a certain regenerator, heats for this regenerator in regenerator.After the heating of described regenerator (storage has certain heat), be converted to the state that the cold air before entering burner hearth is heated.The circulation of above-mentioned transformation process repeats, thus realizing the utilization of the waste heat to high-temperature flue gas.
Above-mentioned State Transferring can by controlling the valve location periodic transformation of described three-way diverter valve thus changing burner hearth aerofluxus and airintake direction realizes.
The structure of described periodic transformation is arranged, it is possible to realize the utilization of the waste heat to high-temperature flue gas, moreover it is possible to reduce the temperature of fume emission, compared with existing design, more energy-conservation, in hgher efficiency.
Concrete, some heat-storing spheres can be provided with in described regenerator thus realizing the function of above-mentioned heat storage.Certainly, described heat storage function can also be achieved by suitable material any in prior art or functional structure.
As it is shown in figure 1, in one particular embodiment of the present invention, described Regenerative Combustion System includes two regenerator (first regenerator 71 and the second regenerator 72), is separately positioned on the both sides of described burner hearth.Described three-way diverter valve is also configured as two (first three-way diverter valve 61 and the second three-way diverter valves 62) equally.Described breather line 50 is arranged as shown in Figure 1, Each part (i.e. burner hearth, air-introduced machine etc.) in connection accumulation of heat heating system
In actual use, described Regenerative Combustion System includes following two running statuses:
Running status one: cold air passes through aerator, enters in burner hearth through the first three-way diverter valve 61 and the first regenerator 71.Wherein, cold air is heated in the first regenerator 71.
The high-temperature flue gas that burner hearth produces, through second regenerator the 72, second three-way diverter valve 62, is finally discharged to smokejack by air-introduced machine, discharges.Wherein, described second regenerator 72, when through the second regenerator 72, is heated, is stayed by partial heat in the second regenerator by high-temperature flue gas.
By changing the valve location of described three-way diverter valve, change the flow direction of air blast and air inducing in burner hearth thus realizing the running status one conversion to running status two.
Running status two: cold air passes through aerator, enters in burner hearth through the second three-way diverter valve 62 and the second regenerator 72.Wherein, cold air is heated in the second regenerator 72.
The high-temperature flue gas that burner hearth produces, through first regenerator the 71, first three-way diverter valve 61, is finally discharged to smokejack by air-introduced machine, discharges.Wherein, described first regenerator 71, when through the first regenerator 71, is heated, is stayed by partial heat in the first regenerator by high-temperature flue gas.
By periodic transformation's (i.e. cyclically-varying of the valve location of three-way diverter valve) of above-mentioned running status one and running status two, the heat exchange between high-temperature flue gas and cold air is carried out in regenerator, described reduction exhaust gas temperature can be realized, save the effect of the energy.
Concrete, as in figure 2 it is shown, described Regenerative Combustion System also includes a control module.Described control module is used for receiving user instruction, the described Regenerative Combustion System work of automatic or passive control.Described control system can have manual operation or the flow process of operation automatically.
In practical operation, before the start of described Regenerative Combustion System,
Firstly, it is necessary to open fire door, confirm that all personnel leaves fire door.And, it is determined that compression air is opened, and fire defector has compression air by (playing cooling effect, protection fire inspection).
Concrete, described control module also includes alarm unit 100, and described alarm unit is for when improper phenomenon occurs in certain ad hoc structure in described Regenerative Combustion System, issuing the user with alarm signal.Described control module also includes display unit, for showing parameter setting and the user interface of described Regenerative Combustion System to user.
In actual applications, described user interface (system runnable interface) can show accumulation of heat schematic diagram, the position of reversal valve, temperature, blower fan frequency, control valve opening, gaseous-pressure on off state and gas flow, alarm signal can be shown by flicker state.
Described parameter arranges interface can include regenerator temperature parameter, frequency parameter, commutating period and control valve opening.
General, regenerator temperature arranges scope 150-250 degree, is generally 180 degree.
The frequency of each fan frequency converter of frequency parameter principal set up.Frequency when aerator, air-introduced machine frequency are big fire, frequency is little is frequency during little fire, arranges according to the combustion case of combustion gas and furnace pressure, and little blower fan frequency height is frequency during burning, is generally 50Hz, the frequency that frequency is low when being non-burning, is generally 20Hz.
Described control valve opening size is arranged to control the size of gas quantity, and general ranges for 0-90.
More specifically, described control system also includes the input-output apparatus 200 mutual with user.Described input-output apparatus 200 at least includes a speaker 210 and alarm signal display lamp 220.Described speaker and alarm signal display lamp for showing sound and light alarm signal after warning.
Described input-output apparatus 200 also includes an ann reset button 230, is used for receiving user instruction, releases described sound and light alarm signal.
In practical operation, after having relative alarm, the corresponding informance of display interface (user interface) just shows redness, and after the SR that pushes for emergency, sound and light alarm no longer exported in 5 minutes, but this information still shows redness until alarm signal releases.
Concrete fault alarm information may include that
1, aerator, air-introduced machine, little blower fan are reported to the police and are because controlling the converter of corresponding blower fan and send warning.
After warning, the alarm code according to converter, check warning reason and solution.After closing the power supply of corresponding converter or press the stop key of low-converter, also reporting to the police, opening power warning will disappear.Now, do not start when blower fan just stops at once, just can be again started up after waiting blower fan to stop completely.
2, regenerator is reported to the police and is because its temperature and has exceeded setting value.Described setting value can be determined according to practical situation.
3, reversal valve is reported to the police and is because reversal valve not according to the mode action that program is given, it is possible to reason have: compressed air pressure is not enough；Electromagnetic valve is failure to actuate；Reversal valve proximity switch position is improper or damage etc..
4, gas alarm is because the hypertonia of combustion gas or too low.
5, fire inspection warning is owing to when gas valve is opened, flame detecting probe does not monitor flame.Now it is probably flame detecting probe dirty, it should check and clear up, notices that whether the compression air of fire inspection is normal simultaneously.
It is preferred that described input-output apparatus also includes for receiving user instruction, stop the scram button 240 of described Regenerative Combustion System running.
Described manual operation flow process can for equipment debugging time independent manual operation use.When manual operation, it is possible to each equipment is carried out individually operated.But it should be noted that under manual mode, it does not have safeguard protection is set.
Specifically used process is: selecting switch to get to manual position during manual operation, then touch screen picture is switched to manual operation picture, pressing each to start, aerator, air-introduced machine, gas valve, control valve and little blower fan just individually can be started, stop operation by stop button.When manual operation is described, it does not have arrange protection, it should be noted that safety, in case of emergency, can pressing the scram button in electrical control cubicles, wait replying after normally, choosing turns scram button so that it is ejects, then re-operates.
Described automatic operating process specifically includes: first selecting switch to get to automatically.Then, pressing startup button, system boots up operation according to the program set, and is first turned on aerator and little blower fan, then opens gas valve and lights a fire, and air-introduced machine starts simultaneously.
After pressing stop button, system carries out shutdown operation according to the program set, and is first shut off gas valve, is then shut off aerator, air-introduced machine, little blower fan is transferred to relatively small frequency and runs.
It is understood that for those of ordinary skills, it is possible to it is equal to replacement according to technical scheme and present inventive concept or is changed, and all these are changed or replace the scope of the claims that all should belong to appended by the present invention.
Claims (10)
1. the Regenerative Combustion System of a novel aluminium melting furnace, including burner hearth, aerator, air-introduced machine and smokejack, it is characterized in that, described Regenerative Combustion System also includes: for connecting the breather line of each structure in described combustion system, be arranged on the some three-way diverter valves on described breather line and some regenerator with thermal storage capability；
Described regenerator is connected with burner hearth by described breather line, flows through including being in heat smoke, the cooling state that the heated condition of storing heat or the cold air for entering burner hearth heat；
Several regenerator described include at least one regenerator being in cooling state and at least one is in the regenerator of heated condition；
The valve location periodic transformation of described three-way diverter valve is so that the period of state of regenerator sexually revises.
2. the Regenerative Combustion System of novel aluminium melting furnace according to claim 1, it is characterised in that be provided with some heat-storing spheres in described regenerator.
3. the Regenerative Combustion System of novel aluminium melting furnace according to claim 1, it is characterised in that described Regenerative Combustion System includes two regenerator, is separately positioned on the both sides of described burner hearth.
4. the Regenerative Combustion System of novel aluminium melting furnace according to claim 1, it is characterised in that described Regenerative Combustion System includes two three-way diverter valves.
5. the Regenerative Combustion System of novel aluminium melting furnace according to claim 1, it is characterised in that described Regenerative Combustion System also includes a control module；Described control module is used for receiving user instruction, the described Regenerative Combustion System work of automatic or passive control.
6. the Regenerative Combustion System of novel aluminium melting furnace according to claim 5, it is characterized in that, described control module also includes alarm unit, and described alarm unit is for when improper phenomenon occurs in certain ad hoc structure in described Regenerative Combustion System, issuing the user with alarm signal.
7. the Regenerative Combustion System of novel aluminium melting furnace according to claim 5, it is characterised in that described control module also includes display unit, for showing parameter setting and the user interface of described Regenerative Combustion System to user.
8. the Regenerative Combustion System of novel aluminium melting furnace according to claim 5, it is characterised in that described control system also includes the input-output apparatus mutual with user；
Described input-output apparatus at least includes a speaker and alarm signal display lamp；Described speaker and alarm signal display lamp for showing sound and light alarm signal after warning.
9. the Regenerative Combustion System of novel aluminium melting furnace according to claim 8, it is characterised in that described input-output apparatus also includes an ann reset button, is used for receiving user instruction, releases described sound and light alarm signal.
10. the Regenerative Combustion System of novel aluminium melting furnace according to claim 8, it is characterised in that described input-output apparatus also includes for receiving user instruction, stops the scram button of described Regenerative Combustion System running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255726.9A CN105737628A (en) | 2016-04-20 | 2016-04-20 | Novel regenerative combustion system for aluminum melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255726.9A CN105737628A (en) | 2016-04-20 | 2016-04-20 | Novel regenerative combustion system for aluminum melting furnace |
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| CN105737628A true CN105737628A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610255726.9A Pending CN105737628A (en) | 2016-04-20 | 2016-04-20 | Novel regenerative combustion system for aluminum melting furnace |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2058789B1 (en) * | 1970-11-30 | 1971-11-11 | Aichelin Fa J | Device for the production of ceramic-bonded bodies from blue clay |
| CN2562078Y (en) * | 2002-08-16 | 2003-07-23 | 冶金工业部节能中心常熟喷嘴厂 | Heat stored burner |
| CN103014310A (en) * | 2012-12-03 | 2013-04-03 | 攀钢集团西昌钢钒有限公司 | Timing constant-temperature reversing device of regenerative furnace and method thereof |
| CN105423750A (en) * | 2015-12-31 | 2016-03-23 | 保定安保能冶金设备有限公司 | Aluminum melting furnace |
| CN205718508U (en) * | 2016-04-20 | 2016-11-23 | 兰溪市博远金属有限公司 | A kind of Regenerative Combustion System of novel aluminium melting furnace |
-
2016
- 2016-04-20 CN CN201610255726.9A patent/CN105737628A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2058789B1 (en) * | 1970-11-30 | 1971-11-11 | Aichelin Fa J | Device for the production of ceramic-bonded bodies from blue clay |
| CN2562078Y (en) * | 2002-08-16 | 2003-07-23 | 冶金工业部节能中心常熟喷嘴厂 | Heat stored burner |
| CN103014310A (en) * | 2012-12-03 | 2013-04-03 | 攀钢集团西昌钢钒有限公司 | Timing constant-temperature reversing device of regenerative furnace and method thereof |
| CN105423750A (en) * | 2015-12-31 | 2016-03-23 | 保定安保能冶金设备有限公司 | Aluminum melting furnace |
| CN205718508U (en) * | 2016-04-20 | 2016-11-23 | 兰溪市博远金属有限公司 | A kind of Regenerative Combustion System of novel aluminium melting furnace |
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