CN101769680B - High-efficiency and energy-saving combined type aluminum melting furnace and melting method thereof - Google Patents
High-efficiency and energy-saving combined type aluminum melting furnace and melting method thereof Download PDFInfo
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- CN101769680B CN101769680B CN2009101867732A CN200910186773A CN101769680B CN 101769680 B CN101769680 B CN 101769680B CN 2009101867732 A CN2009101867732 A CN 2009101867732A CN 200910186773 A CN200910186773 A CN 200910186773A CN 101769680 B CN101769680 B CN 101769680B
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Abstract
The invention discloses a high-efficiency and energy-saving combined type aluminum melting furnace which has high production efficiency and low energy consumption and can realize the continuous production as well as a melting method thereof with simple operation process and low burnout rate. The combined type aluminum melting furnace comprises an aluminum scrap furnace, a medium furnace and two heat-insulating furnaces, which are all mutually connected through an interchanged type launder. The melting method comprises the following steps of: discharging high-temperature aluminum liquid in the aluminum scrap furnace into the medium furnace, carrying out immersed melting on the aluminum in the medium furnace, respectively carrying out component adjustment through the two heat-insulating furnaces on the aluminum liquid which is discharged from the medium furnace successively, and then carrying out ingot casting in turn.
Description
Technical field the present invention relates to a kind of molten aluminium stove, relates in particular to molten aluminium stove of a kind of combined efficient and method of smelting thereof.
Background technology more advanced secondary aluminium smelting furnace at present is to constitute by high and low two stoves, a middle stove, a holding furnace.The molten aluminium stove of this structure is energy savings to a certain extent, enhances productivity, reduce cost, but the raising of its production efficiency and energy-saving effect and not obvious.This molten aluminium stove must all be put the aluminium liquid in the middle stove totally when the aluminium liquid of middle stove fusing is put into holding furnace, and the fusing point that could go out to be deposited on furnace bottom so clearly is higher than the slag (as iron) of aluminium, therefore can't realize the immersion melting, and the scaling loss of aluminium is bigger.And the most utilization rate of waste heat of existing smelting apparatus is not high enough, and the abundant burning of fuel is not ideal enough, to such an extent as to the energy consumption height, melting cost height.
Summary of the invention the objective of the invention is the deficiency at above-mentioned prior art existence, and molten aluminium stove of a kind of combined efficient and method of smelting thereof are provided.The molten aluminium stove of this combined type is realizing that the high efficiency quantity-produced simultaneously, can reduce scaling loss, energy consumption and melting cost.This method operating procedure is simple, convenient, can reduce consumption, raises the efficiency and usage ratio of equipment.
Technical scheme of the present invention comprises holding furnace and middle stove, and described holding furnace and middle stove are connected with at least one aluminium bits stove.
Described holding furnace is provided with at least two, and aluminium bits stove and middle stove and this two holding furnaces interconnect by chute; Described aluminium bits stove, middle stove and or holding furnace be the molten aluminium stove of heat accumulating type.
Described aluminium bits stove and middle stove also interconnect through a through type chute by the interconnective while of intercommunication formula chute, and what described aluminium was considered stove, middle stove, holding furnace three to be worth doing is provided with highly relatively successively that ladder subtracts.
Described aluminium bits stove, middle stove and or the combustion chamber of its burner of holding furnace be connected in the air outlet of nitrogen making machine through the oxygen enrichment pipeline.
The end that described oxygen enrichment pipeline is positioned at the combustion chamber is connected with shower nozzle; Described shower nozzle is all joined shower nozzle for its outlet by the mesh-type that some through holes constitute.
Described aluminium bits stove, middle stove and or the draft chamber of the accumulation of heat bucket of its burner of holding furnace or accumulation of heat bucket in be provided with heat exchanger.
Described heat exchanger is that an outer wall is laid with the coiled pipe of heat absorbing sheet or coil pipe, also or be that an outer wall is laid with the box-shaped pipe group that several box-shaped pipes by mutual serial connection of heat absorbing sheet constitute.
Described fusing, composition adjustment and ingot casting are to utilize the molten aluminium stove of the described combined efficient of claim 1 to adopt following method to carry out: drop into the aluminium material respectively in aluminium bits stove and middle stove, aluminium material in elder generation's melting aluminum bits stove is made aluminium liquid and is drained into middle stove, and the aluminium material in the centering stove carries out the immersion fusing.In the middle of aluminium liquid fusing in the stove drain into holding furnace again or successively also or simultaneously drain into many holding furnaces after meeting the requirements of temperature, again the aluminium liquid in the holding furnace simultaneously, also or make up alternate cycles continuous casting is successively carried out carrying out after the composition adjustment single stove or many stoves.
Reach the aluminium liquid of requirement temperature in described in the stove, be disposed to a wherein holding furnace of two holding furnaces earlier, after the composition adjustment, carry out ingot casting.Between the adjustment period of carrying out composition in this insulation Shanghai, fusing reaches the aluminium liquid of requirement temperature in the middle stove, drains into another holding furnace again, ingot casting after the composition adjustment.Utilize two holding furnaces to carry out aluminium liquid alternate cycles and adjust composition, realize continuous cast aluminium.
Described composition adjustment is to utilize aluminium bits fire grate to put aluminium liquid to holding furnace or directly be dosed to holding furnace according to the composition needs, realizes the composition adjustment of holding furnace aluminium liquid.
The present invention combines advanced person's melting technique and production technology together, and this method of smelting operating procedure is simple, convenient, can improve usage ratio of equipment and operational efficiency, cuts down the consumption of energy, scaling loss and production cost, can be continuously produced ingot casting.The molten aluminium furnace structure of combined type of the present invention is simple, combined and instant.
Burn-off rate of the present invention can improve about 30%, and the scaling loss of aluminium reduces about 20% on the original basis, and energy consumption reduces about 50% on the basis of existing kiln, and the molten aluminium stove discharged gas fume temperature of heat accumulating type is lower than 80 ℃, dust CO after by waste heat recovery
2Be significantly less than discharging standards.
Description of drawings Fig. 1, Fig. 2 and Fig. 3 are respectively molten the 1st～3 kind of example structure schematic diagram of aluminium stove of combined type of the present invention.
Now also the invention will be further described in conjunction with the accompanying drawings by embodiment for the specific embodiment.
Combined type melts aluminium stove embodiment
Embodiment 1: as shown in Figure 1.The molten aluminium stove of combined type of the present invention is interconnected to constitute by intercommunication formula chute 4 by an aluminium bits stove 1, a middle stove 2 and two holding furnaces 3.Aluminium bits stove 1, middle stove 2 and two holding furnaces 3 are the molten aluminium stove of the heat accumulating type that is respectively equipped with burner 11.The furnace bottom of middle stove 2 is provided with the furnace bottom that level height is lower than aluminium bits stove 1 relatively, and the furnace bottom of two holding furnaces 3 is provided with the furnace bottom that level height is lower than middle stove 2 relatively.Aluminium bits stove 1 also is connected with middle stove 2 by through type chute 5 simultaneously.When aluminium bits stove 1 centering stove 2 is put aluminium liquid, can be undertaken more convenient unimpeded by through type chute 5.
Embodiment 2: as shown in Figure 2.Present embodiment is on the basis of the foregoing description 1 or following embodiment 3, respectively is provided with coiled pipe 8 respectively in the leg space ventilation chamber 7 in each corresponding accumulation of heat bucket of each burner 11.The import and export 9,10 that coiled pipe 8 in each draft chamber 7 is connected in series after the UNICOM mutually is serially connected with fuel feeding or the feed pipe that the molten aluminium stove melting of combined type is used.Distribute separately on the periphery wall of coiled pipe 8 and be connected with heat absorbing sheet 14.When storage heater 11 work, the flue gas that the low temperature fuel oil that the confession melting of the coiled pipe 8 of flowing through is used or the preparation of water and draft chamber 7 efflux carries out heat exchange, reaches the purpose of further recovery fume afterheat.
Embodiment 3: as shown in Figure 3.Present embodiment is on the basis of the foregoing description 1 or 2, be respectively arranged with the mesh-type that its outlet is made of some equally distributed through holes 18 and all join shower nozzle 15 in the combustion chamber 17 of each burner 11, the oxygen-enriched air outlet that mesh-type is all joined the nitrogen making machine 19 that shower nozzle 15 uses through oxygen enrichment pipeline 13 dehydrogenation when being melting aluminium liquid by magnetic valve 16 respectively is connected.Utilize the combustion chamber 17 of the rich oxygen containing air introducing burner 11 of discharging behind the nitrogen making machine 19 system nitrogen, to help full combustion of fuel.The flow of oxygen-enriched air can be controlled by magnetic valve 16.
Method of smelting of the present invention
Embodiment 1: drop into the aluminium material respectively in aluminium bits stove and middle stove, the aluminium material in the first melting aluminum bits stove is considered aluminium to be worth doing melt in the stove aluminium liquid and is drained into middle stove, and the aluminium material in the centering stove carries out the immersion fusing.After aluminium liquid in the central stove met the requirements of temperature, a wherein holding furnace that again the aluminium liquid in the middle stove is disposed to two holding furnaces carried out the adjustment of aluminium liquid composition, carries out ingot casting after composition adjustment (proportioning components).During this holding furnace is adjusted composition or ingot casting, after the aluminium liquid that melts in the middle stove meets the requirements of temperature, to another holding furnace discharging aluminium liquid, carry out the composition adjustment in succession, treat that this holding furnace ingot casting finishes, this another holding furnace composition adjustment also finishes then ingot casting substantially.Such two holding furnaces can alternate cycles work be realized continuous cast aluminium.
So, the time of the molten vacant cooling of aluminium stove of heat accumulating type can shorten dramatically.Can improve usage ratio of equipment and production efficiency, cut down the consumption of energy.
The composition adjustment of aluminium liquid is to utilize aluminium bits fire grate to put aluminium liquid to holding furnace or the direct composition adjustment that is dosed to holding furnace realization holding furnace aluminium liquid according to the composition needs.The preceding method of adjustment of planting is convenient to control, and it is higher to adjust ratio of precision.The adjustment time of back kind method of adjustment is short, speed is fast.
Aluminium bits stove is put aluminium liquid by intercommunication formula or through type chute centering fire grate, and to two holding furnaces discharging aluminium liquid, the discharging conveying of each stove aluminium liquid is to realize by the height fall between the relevant stove by intercommunication formula chute for aluminium bits stove and middle stove.
When the holding furnace composition is adjusted required time in short-term, by the burner of stove in the control, but fusing is assisted in the fusing of the immersion of centering stove aluminium material.
Regulate the speed when very fast at the holding furnace composition, simultaneously under the situation that the fusing of aluminium bits stove and middle stove can adapt to, or, adapting to regulating the speed of holding furnace by controlling the burner control burn-off rate of aluminium bits stove and middle stove, composition is adjusted ingot casting when can realize two holding furnaces.
Four stoves all can be by the burner control isolated operation of self.
Claims (8)
1. the molten aluminium stove of combined efficient comprises middle stove and at least two holding furnaces, and described holding furnace and middle stove are connected with at least one aluminium bits stove, it is characterized in that described holding furnace, middle stove and aluminium bits stove interconnect by intercommunication formula chute; Described aluminium bits stove and middle stove also interconnect through a through type chute by the interconnective while of intercommunication formula chute, and described aluminium bits stove, middle stove, being provided with highly of holding furnace three are successively decreased successively relatively; Described aluminium bits stove, middle stove and or the combustion chamber of its burner of holding furnace be connected in the air outlet of nitrogen making machine through the oxygen enrichment pipeline.
2. according to the molten aluminium stove of the described combined efficient of claim 1, it is characterized in that described aluminium bits stove, middle stove and or holding furnace be the molten aluminium stove of heat accumulating type; The end that described oxygen enrichment pipeline is positioned at the combustion chamber is connected with shower nozzle; Described shower nozzle is all joined shower nozzle for its outlet by the mesh-type that some through holes constitute.
3. according to the molten aluminium stove of claim 1 or 2 described combined efficients, it is characterized in that described aluminium bits stove, middle stove and or the draft chamber of the accumulation of heat bucket of its burner of holding furnace or accumulation of heat bucket in be provided with heat exchanger.
4. according to the molten aluminium stove of the described combined efficient of claim 3, it is characterized in that described heat exchanger is that an outer wall is laid with the coiled pipe of heat absorbing sheet or coil pipe, also or be that an outer wall is laid with the box-shaped pipe group that several box-shaped pipes by mutual serial connection of heat absorbing sheet constitute.
5. method of smelting, comprise fusing, composition is adjusted and ingot casting, described fusing, composition adjustment and ingot casting are to utilize the molten aluminium stove of the described combined efficient of claim 1 to adopt following method to carry out: drop into the aluminium material respectively in aluminium bits stove and middle stove, aluminium material in elder generation's melting aluminum bits stove is made aluminium liquid and is drained into middle stove, aluminium material in the centering stove carries out the immersion fusing, drain into holding furnace again after aluminium liquid fusing in the middle of it is characterized in that in the stove meets the requirements of temperature, again the aluminium liquid in the holding furnace is carried out carrying out single stove or many stoves while after the composition adjustment, also or make up alternate cycles continuous casting successively.
6. according to the described method of smelting of claim 5, it is characterized in that described in the middle of aluminium liquid fusing in the stove meet the requirements of and drain into holding furnace again after the temperature and successively also or simultaneously drain into many holding furnaces for comprising.
7. according to the described method of smelting of claim 5, it is characterized in that reaching in the described middle stove aluminium liquid of requirement temperature, drain into wherein holding furnace of at least two holding furnaces earlier, after the composition adjustment, carry out ingot casting; Between the adjustment period that this holding furnace carries out composition, fusing reaches the aluminium liquid of requirement temperature in the middle stove, drains into another holding furnace again, and ingot casting after the composition adjustment utilizes at least two holding furnaces to carry out aluminium liquid alternate cycles and adjusts composition, realizes continuous casting.
8. according to claim 5 or 7 described method of smelting, it is characterized in that described composition adjustment is to utilize aluminium bits fire grate to put aluminium liquid to holding furnace or directly be dosed to holding furnace according to the composition needs, realizes the composition adjustment of holding furnace aluminium liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101867732A CN101769680B (en) | 2009-12-20 | 2009-12-20 | High-efficiency and energy-saving combined type aluminum melting furnace and melting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101867732A CN101769680B (en) | 2009-12-20 | 2009-12-20 | High-efficiency and energy-saving combined type aluminum melting furnace and melting method thereof |
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| Publication Number | Publication Date |
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| CN101769680A CN101769680A (en) | 2010-07-07 |
| CN101769680B true CN101769680B (en) | 2011-12-28 |
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| CN2009101867732A Expired - Fee Related CN101769680B (en) | 2009-12-20 | 2009-12-20 | High-efficiency and energy-saving combined type aluminum melting furnace and melting method thereof |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465206B (en) * | 2010-11-10 | 2013-08-21 | 江苏凯特汽车部件有限公司 | Direction aluminum scrap reuse technology for automobile aluminum alloy wheel processing |
| CN102505074B (en) * | 2011-10-17 | 2014-07-09 | 江西恒泰铝材有限公司 | Intelligent combined smelting system and smelting method |
| CN102564121B (en) * | 2012-01-17 | 2013-10-23 | 张家港市宏基铝业有限公司 | Spinning furnace |
| CN102839288B (en) * | 2012-10-09 | 2014-02-19 | 南通曼特威金属材料有限公司 | Low-temperature rapidly-smelting process for regenerative aluminum alloy |
| CN103898337B (en) * | 2012-12-31 | 2016-08-24 | 保定安保能冶金设备有限公司 | Secondary aluminium melts ferro-aluminum separating technology automatically |
| CN103438478B (en) * | 2013-08-08 | 2018-09-11 | 珠海市威望节能科技有限公司 | Aluminium melting furnace rotary heat accumulating type burner |
| CN104152697B (en) * | 2014-07-21 | 2016-04-27 | 湖州织里荣华铝业有限公司 | A kind of waste aluminum retrieving arrangement |
| CN107655331B (en) * | 2017-10-17 | 2019-03-26 | 江苏粤阜合金材料有限公司 | A kind of environment-friendly type aluminium melting furnace and its method of smelting |
| CN111889634A (en) * | 2020-07-24 | 2020-11-06 | 都江堰川相铝业有限公司 | Aluminum ingot smelting system and smelting process |
| CN115265192B (en) * | 2022-08-05 | 2023-07-28 | 宁波沃锐奥机械工贸有限公司 | Aluminum part processing technology and equipment thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348430Y (en) * | 2009-01-08 | 2009-11-18 | 刘济华 | Heat accumulating type energy-saving aluminum melting furnace |
| CN201583139U (en) * | 2009-11-23 | 2010-09-15 | 郭志明 | Smelting furnace group capable of efficiently and continuously producing reborn aluminium alloy |
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2009
- 2009-12-20 CN CN2009101867732A patent/CN101769680B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348430Y (en) * | 2009-01-08 | 2009-11-18 | 刘济华 | Heat accumulating type energy-saving aluminum melting furnace |
| CN201583139U (en) * | 2009-11-23 | 2010-09-15 | 郭志明 | Smelting furnace group capable of efficiently and continuously producing reborn aluminium alloy |
Non-Patent Citations (3)
| Title |
|---|
| JP平2-38538A 1990.02.07 |
| US 5,810,907 A,1998.09.22, |
| US 7,282,171 B2,2007.10.16, |
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| CN101769680A (en) | 2010-07-07 |
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Owner name: JIANGXI HONGCHENG ALUMINIUM INDUSTRY CO., LTD. Free format text: FORMER NAME: FENGCHENG HONGCHENG METAL PRODUCT CO., LTD. |
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Address after: 331100 Jiangxi city of Fengcheng province Duge sun rians Industrial Zone Patentee after: Jiangxi Hongcheng Aluminium Industry Co., Ltd. Address before: 331100 Jiangxi city of Fengcheng province Duge sun rians Industrial Zone Patentee before: Fengcheng Hongcheng Metal Product Co., Ltd. |
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Granted publication date: 20111228 Termination date: 20151220 |
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