CN101865602A - Heater arrangement structure for improving temperature distribution uniformity of melt of aluminium isothermal smelting furnace - Google Patents
Heater arrangement structure for improving temperature distribution uniformity of melt of aluminium isothermal smelting furnace Download PDFInfo
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- CN101865602A CN101865602A CN 201010208827 CN201010208827A CN101865602A CN 101865602 A CN101865602 A CN 101865602A CN 201010208827 CN201010208827 CN 201010208827 CN 201010208827 A CN201010208827 A CN 201010208827A CN 101865602 A CN101865602 A CN 101865602A
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Abstract
The invention relates to a heater arrangement structure for improving the temperature distribution uniformity of the melt of an aluminium isothermal smelting furnace. The middle position of the furnace of the isothermal smelting furnace is provided with a partition; the partition divides the furnace into a melting area and a heating area, wherein the heating area is unevenly arranged with heaters; the heaters are arranged in parallel between the partition and the opposite furnace wall; the number of the heaters is increased row by row by one respectively; the space between the adjacent heaters of each row is equal; the space between the rows is equal; and the heaters are in staggered arrangement. The arrangement mode of the heaters can effectively eliminate the phenomenon of the temperature distribution uniformity of the aluminium melt of the heating area, improve the isothermal smelting effect, reduce the oxidation burning loss in the smelting process and improve the quality of the melt.
Description
Technical field
The present invention relates to the heater arrangement mode of aluminium isothermal smelting furnace, relate in particular to a kind of heater arrangement structure that improves temperature distribution uniformity of melt of aluminium isothermal smelting furnace, belong to the metal smelt technical field.
Background technology
The isothermal melting technique is a kind of novel smelting technology of efficient, energy-saving and environmental protection.Compare outstanding advantages such as energy-conservation, low pollutant emission that the isothermal melting technique has, low metal melting loss, high melt quality with the reflective melting technique of traditional flame.The isothermal melting technique carries out melting to furnace charge under steady temperature, the aluminum melt temperature in the isothermal smelting burner hearth changes in very among a small circle, and temperature everywhere is almost consistent, can formation temperature gradient and thermosphere phenomenon, and the melt quality improves greatly.
Isothermal smelting institute's calorific requirement is in process of production provided by the heater that is installed on the thermal treatment zone mainly that (the heating end of heater is immersed in the melt, be called immersion heater, comprise immersed gas heater or electrical immersion heater, below be referred to as immersion heater).Because the limitation of furnace binding and the characteristic of fluid, melt can not flow uniformly in the thermal treatment zone, so heater also just can not carry out sufficient exchange heat with melt, thereby causes the Heating Zone Temperature inequality, reduction isothermal melting effect.Therefore, the arrangement mode of immersion heater plays an important role to the temperature homogeneity of melt in the isothermal smelting.
In aluminium and the aluminum alloy isothermal smelting furnace structure in the stove, the middle part of isothermal smelting burner hearth is provided with partition wall, and partition wall is divided into the fusion zone and the thermal treatment zone with burner hearth; On the furnace roof of the thermal treatment zone immersion heater is installed, immersion heater vertically stretches in the burner hearth of the thermal treatment zone, and the side wall of the thermal treatment zone is provided with head piece.Outside body of heater, be furnished with the aluminium fluid circulation, make aluminium liquid in stove, to flow.
Aluminium in the past and aluminum alloy isothermal smelting furnace, the mode that adopts immersion heater evenly to arrange in stove usually adopting under this arrangement mode, exists temperature distributing disproportionation to spare phenomenon in the thermal treatment zone.Aluminium liquid flow velocity when the fusion zone enters the thermal treatment zone is bigger, most of liquid stream directly is flushed on the furnace wall, opposite, flow through the thermal treatment zone along the furnace wall, this zone aluminium flow quantity is bigger, can not with the effective heat exchange of heater, so temperature is on the low side, and more a spot of melt is by the heater thermal treatment zone of flowing through, flow velocity is slower, and the aluminium liquid measure is few and longer time of contact with heater, and this regional temperature is higher.The position that temperature is the highest concentrates on the thermal treatment zone near near the heater place the partition wall, and this is that partition wall and heater all can hinder melt flows, easily the formation temperature concentration phenomenon because this place is positioned at the inside, the thermal treatment zone.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of heater arrangement structure that improves temperature distribution uniformity of melt of aluminium isothermal smelting furnace is provided, be intended to eliminate the Heating Zone Temperature concentration phenomenon, improve the isothermal melting effect of isothermal smelting, reduce the oxidization burning loss of melt, improve the quality of melt.
Purpose of the present invention is achieved through the following technical solutions:
Improve the heater arrangement structure of temperature distribution uniformity of melt of aluminium isothermal smelting furnace, the middle part of isothermal smelting burner hearth is provided with partition wall, described partition wall is divided into the fusion zone and the thermal treatment zone with burner hearth, it is characterized in that: the non-homogeneous heater that is placed with in the described thermal treatment zone, described heater is parallel arrangement between partition wall and furnace wall, opposite, and quantity increases by row, increase progressively 1 respectively, spacing equates between every row's the adjacent heater, and spacing between rows and rows equates that heater forms and is staggered.
Further, the heater arrangement structure of above-mentioned raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace, wherein, described heater is immersed gas heater or electrical immersion heater.
Further, the heater arrangement structure of above-mentioned raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace, wherein, the external aluminium liquid circulating pump that is furnished with of described isothermal smelting furnace, aluminium liquid inlet of circulating pump is communicated with the thermal treatment zone, and aluminium liquid outlet of circulating pump is communicated with the fusion zone.
Again further, the heater arrangement structure of above-mentioned raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace, wherein, described aluminium liquid circulating pump is electromagnetic pump, mechanical pump or permanent magnet pump.
Substantive distinguishing features and obvious improvement that technical solution of the present invention is outstanding are mainly reflected in:
1. arrangement mode of the present invention, can eliminate the Heating Zone Temperature concentration phenomenon, melt temperature of aluminum liquid in the burner hearth is changed in very among a small circle, and temperature everywhere is almost consistent, improved the integrated heat efficiency of stove, improve energy utilization rate, reduced energy resource consumption, reduced pollutant emission;
2. the heater arrangement mode is simple, reliable, makes the melt temperature unanimity, and composition is even, can formation temperature gradient and thermosphere phenomenon, the melt quality improves greatly, and iron loss is little, dissolved gases in the melt, solid inclusions are few, and the slag of formation also obviously reduces, and improves the blank quality.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: isothermal smelting heater arrangement schematic diagram;
The implication of each Reference numeral sees the following form among the figure:
| Reference numeral | Implication | Reference numeral | Implication | Reference numeral | Implication |
| ??1 | The fusion zone | ??2 | Partition wall | ??3 | The thermal treatment zone |
| ??4 | Heater | ??5 | Aluminium liquid circulating pump |
The specific embodiment
As shown in Figure 1, improve the heater arrangement structure of temperature distribution uniformity of melt of aluminium isothermal smelting furnace, the middle part of isothermal smelting burner hearth is provided with partition wall 2, partition wall 2 is divided into the fusion zone 1 and the thermal treatment zone 3 with burner hearth, the thermal treatment zone 3 non-homogeneous heaters 4 that are placed with, heater 4 adopts immersed gas heater or electrical immersion heater, heater 4 is parallel arrangement between partition wall 2 and furnace wall, opposite, quantity increases by row, increase progressively 1 respectively, spacing equates between every row's the adjacent heater, and spacing between rows and rows equates that heater forms and is staggered.The external aluminium liquid circulating pump 5 that is furnished with of isothermal smelting furnace, the import of aluminium liquid circulating pump 5 is communicated with the thermal treatment zone 3, and the outlet of aluminium liquid circulating pump 5 is communicated with fusion zone 1; Aluminium liquid circulating pump 5 is electromagnetic pump, mechanical pump or permanent magnet pump, melt under aluminium liquid circulating pump 5 effect from the fusion zone 1 to the thermal treatment zone 3 flow at high speed.
The 3 non-homogeneous heaters 4 of arranging in the thermal treatment zone, the heating load that the several thermic loads according to isothermal smelting of the radical of heater 4 and row are exported the requirement and the thermal treatment zone calculates the back and determines; Arrangement mode is that quantity increases by row at partition wall 2 parallel arrangement between the furnace wall, opposite, increases by 1 respectively, and the adjacent heater spacing equates that adjacent heater row spacing equates that each is arranged heater and is staggered.The spacing size is relevant with isothermal smelting size, chamber structure size, aluminium liquid circulation ability etc.
When melt flows into the thermal treatment zone 3 at a high speed by fusion zone 1, because the characteristic of fluid, most of aluminium liquid can be flushed on the furnace wall, near the more heater owing to the furnace wall, arranged, and melt flows is had certain inhibition, so the furnace wall near zone reduces with respect to former arrangement mode flow, flow velocity diminishes, effective heat exchange between melt and the heater strengthens, thereby this regional temperature raises to some extent.And the close partition wall near zone in the thermal treatment zone is because arranged less heater, and flow increases relatively, therefore this regional temperature decreases with respect to the arrangement mode of the even layout of heater, the temperature Centralized phenomenon disappears, characteristic according to fluid, the present invention evenly equidistantly is interspersed the heater in the thermal treatment zone, therefore the melt heater of flowing through more equably, each heater and melt exchange capability of heat are basic identical, thereby the temperature homogeneity of thermal treatment zone integral body is improved, and the melt quality is improved greatly.
Isothermal smelting under the heater arrangement mode of the present invention, the uniformity of temperature can reach ± and 5 ℃, the aluminum melt temperature in the burner hearth changes very among a small circle in, and the unanimity almost of temperature everywhere.The heater arrangement mode can be eliminated thermal treatment zone aluminum melt non-uniform temperature phenomenon, improves isothermal melting effect, reduces the oxidization burning loss in the aluminium fusion process, improves the melt quality.
In sum, heater arrangement mode of the present invention is simple, reliable, can effectively improve the isothermal smelting temperature homogeneity, eliminate the temperature Centralized phenomenon, make the melt temperature unanimity, composition is even, there are not thermograde and thermosphere phenomenon, the melt quality improves greatly, and dissolved gases in the melt, solid inclusions are few, simplify subsequent treatment process, improve the blank quality, reduce cost.
What need understand is: the above only is a preferred implementation of the present invention; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. improve the heater arrangement structure of temperature distribution uniformity of melt of aluminium isothermal smelting furnace, the middle part of isothermal smelting burner hearth is provided with partition wall, described partition wall is divided into the fusion zone and the thermal treatment zone with burner hearth, it is characterized in that: the non-homogeneous heater that is placed with in the described thermal treatment zone, described heater is parallel arrangement between partition wall and furnace wall, opposite, and quantity increases by row, increase progressively 1 respectively, spacing equates between every row's the adjacent heater, and spacing between rows and rows equates that heater forms and is staggered.
2. the heater arrangement structure of raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace according to claim 1 is characterized in that: described heater is immersed gas heater or electrical immersion heater.
3. the heater arrangement structure of raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace according to claim 1, it is characterized in that: the external aluminium liquid circulating pump that is furnished with of described isothermal smelting furnace, aluminium liquid inlet of circulating pump is communicated with the thermal treatment zone, and aluminium liquid outlet of circulating pump is communicated with the fusion zone.
4. the heater arrangement structure of raising temperature distribution uniformity of melt of aluminium isothermal smelting furnace according to claim 3 is characterized in that: described aluminium liquid circulating pump is electromagnetic pump, mechanical pump or permanent magnet pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208827 CN101865602B (en) | 2010-06-24 | 2010-06-24 | Heater arrangement structure for improving temperature distribution uniformity of melt of aluminium isothermal smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208827 CN101865602B (en) | 2010-06-24 | 2010-06-24 | Heater arrangement structure for improving temperature distribution uniformity of melt of aluminium isothermal smelting furnace |
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| CN101865602A true CN101865602A (en) | 2010-10-20 |
| CN101865602B CN101865602B (en) | 2012-07-04 |
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| CN 201010208827 Expired - Fee Related CN101865602B (en) | 2010-06-24 | 2010-06-24 | Heater arrangement structure for improving temperature distribution uniformity of melt of aluminium isothermal smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706136A (en) * | 2012-06-14 | 2012-10-03 | 亚太轻合金(南通)科技有限公司 | Aging furnace with heat conducting copper tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028136A1 (en) * | 2000-03-24 | 2001-10-11 | Hertwich Engineering Gmbh | Two-chamber furnace for the melt- contact smelting of contaminated aluminum scrap |
| JP2008246270A (en) * | 2006-08-08 | 2008-10-16 | Mitsubishi Materials Techno Corp | Melting furnace for treating waste asbestos and waste asbestos treatment method using the same |
| CN101586912A (en) * | 2009-06-18 | 2009-11-25 | 苏州新长光热能科技有限公司 | Aluminum and aluminum alloy isothermal smelting furnace |
| JP2010096401A (en) * | 2008-10-15 | 2010-04-30 | Sanken Sangyo Co Ltd | Non-ferrous metal smelting furnace |
| CN201751786U (en) * | 2010-06-24 | 2011-02-23 | 苏州新长光热能科技有限公司 | Heater arrangement structure for improving temperature distribution uniformity of melt of isothermal aluminum smelting furnace |
-
2010
- 2010-06-24 CN CN 201010208827 patent/CN101865602B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028136A1 (en) * | 2000-03-24 | 2001-10-11 | Hertwich Engineering Gmbh | Two-chamber furnace for the melt- contact smelting of contaminated aluminum scrap |
| JP2008246270A (en) * | 2006-08-08 | 2008-10-16 | Mitsubishi Materials Techno Corp | Melting furnace for treating waste asbestos and waste asbestos treatment method using the same |
| JP2010096401A (en) * | 2008-10-15 | 2010-04-30 | Sanken Sangyo Co Ltd | Non-ferrous metal smelting furnace |
| CN101586912A (en) * | 2009-06-18 | 2009-11-25 | 苏州新长光热能科技有限公司 | Aluminum and aluminum alloy isothermal smelting furnace |
| CN201751786U (en) * | 2010-06-24 | 2011-02-23 | 苏州新长光热能科技有限公司 | Heater arrangement structure for improving temperature distribution uniformity of melt of isothermal aluminum smelting furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706136A (en) * | 2012-06-14 | 2012-10-03 | 亚太轻合金(南通)科技有限公司 | Aging furnace with heat conducting copper tube |
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| CN101865602B (en) | 2012-07-04 |
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Granted publication date: 20120704 Termination date: 20180624 |