CN103278016A - Method of pre-heating pre-loaded material by using waste heat of flue gas - Google Patents
Method of pre-heating pre-loaded material by using waste heat of flue gas Download PDFInfo
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- CN103278016A CN103278016A CN2013101550841A CN201310155084A CN103278016A CN 103278016 A CN103278016 A CN 103278016A CN 2013101550841 A CN2013101550841 A CN 2013101550841A CN 201310155084 A CN201310155084 A CN 201310155084A CN 103278016 A CN103278016 A CN 103278016A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention provides a method of pre-heating pre-loaded material by using waste heat of flue gas, and relates to the technical field of metallurgy. According to the method, the flue gas of aluminum melting furnaces (1) and the flue gas of heat preservation furnaces (2) enter a heat exchange pit (10) through pipelines (3), the pre-loaded material in a material frame (12) is pre-heated by the high-temperature flue gas in the heat exchange pit, therefore, the temperature of the pre-loaded material is increased, melting time for the aluminum melting furnaces is shortened, and production efficiency is improved. Meanwhile, the waste heat can be used all the year around, using efficiency of the waste heat is improved, and heat change of the aluminum melting furnaces and the heat preservation furnaces can be further adapted to sufficiently. The method has the advantages that the structure is simple and the using efficiency of the waste heat of the flue gas is high, production cost of enterprises is lowered greatly, and the method is particularly suitable for being popularized in metallurgical enterprises.
Description
[technical field]
The present invention relates to metallurgical technology field, relate in particular to a kind of fume afterheat that utilizes to the method for pre-charging preheating, be specifically related to a kind of waste heat of molten aluminium stove and holding furnace discharging high-temperature flue gas that utilizes to the method for pre-charging preheating.
[background technology]
Known, at home in the aluminium processing industry, the main energy consumption equipment that the molten aluminium stove in founding workshop and holding furnace are the workshop, in energy consumption, occupy simultaneously bigger ratio, a large amount of high-temperature flue gas that molten aluminium stove and holding furnace produce in the process of melting and insulation directly discharge, wherein the heat taken away of high-temperature flue gas is a lot, therefore, reclaiming and utilizing the waste heat of the high-temperature flue gas of molten aluminium stove and holding furnace group is to cut down the consumption of energy, energy savings, improve a major technique demand of furnace thermal efficiency, in order to realize this technology demand, each enterprise all adopts waste heat boiler to utilize the waste heat of molten aluminium stove and holding furnace high-temperature flue gas, in actual mechanical process, the waste heat of molten aluminium stove and holding furnace flue gas mainly is to utilize waste heat boiler to make high-temperature flue gas produce steam or hot water, the steam that produce this moment or hot water is heating season in the winter time, this part heat is used for heating, and to non-heating season joint in summer, this part heat does not just have the user, most of in the case producer all stops waste heat boiler, thereby cause the waste of the energy, and in the waste heat boiler main application of non-heating region only for the domestic hot-water is provided, utilization rate of waste heat is very low, thereby cause the waste of the energy and the increase of enterprise's production cost, the waste heat that so how to maximize the molten aluminium stove of round-the-clock utilization and holding furnace flue gas has just become those skilled in the art's long-term technology demand.
[summary of the invention]
For overcoming the deficiency that exists in the background technology, the invention provides a kind of fume afterheat that utilizes to the method for pre-charging preheating, the present invention enters the heat exchange melt pit by the flue gas that pipeline will melt aluminium stove and holding furnace, in the heat exchange melt pit, utilize high-temperature flue gas that preheating is carried out in the pre-charging in the material frame, greatly reduce the melting cycle of molten aluminium stove, characteristics such as that the present invention has is simple in structure, fume afterheat utilization rate height greatly reduce the production cost of enterprise.
For realizing aforesaid goal of the invention, the present invention adopts technical scheme as described below:
A kind of fume afterheat that utilizes is to the method for pre-charging preheating, and described method comprises the steps:
The first step, at first preheating device is installed according to designing requirement, after finishing, to be installed and debugging at first opens the valve A in the preheating device, valve-off B and valve C, high-temperature flue gas after this moment molten aluminium stove and holding furnace burning is directly sent into deduster by insulation steel airduct in the pouring material through underground current pipeline, in order to prevent that deduster from damaging, connect the temperature that enters the deduster flue gas by adjusting wild air-valve, the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney by blower fan;
Second the step, on the basis of the first step, the material frame that pre-charging is housed is put into the heat exchange melt pit, cover the melt pit top cover;
The 3rd the step, treat second the step finish after, valve-off A, open valve B and valve C, high-temperature flue gas after molten aluminium stove and holding furnace burning this moment enters the top of the material frame in the heat exchange melt pit by insulation steel airduct in the pouring material through underground current pipeline, this moment, high-temperature flue gas carried out preheating to pre-charging, flue gas enters pipeline through the air vent of punishment in advance frame bottom from top to bottom, and flue gas is admitted to deduster then, and the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney by blower fan;
The 4th step, will feed in advance by the 3rd step and to repeat the first step after being preheating to design temperature, take out the pre-charging after the preheating this moment, puts into new pre-charging then and carry out the preheating of next round.
The described fume afterheat that utilizes is to the method for pre-charging preheating, described preheating device comprises pipeline, valve A, deduster, the melt pit top cover, the heat exchange melt pit, the material frame, blower fan and chimney, one end of described pipeline connects molten aluminium stove and holding furnace respectively, any side at the pipeline middle part is provided with at least one heat exchange melt pit, be respectively equipped with the material frame in described each heat exchange melt pit, be respectively equipped with the melt pit top cover at the top of each heat exchange melt pit, between the outer wall of the middle part of each heat exchange melt pit and material frame, be provided with the melt pit central dividing plate, the upper and lower of each heat exchange melt pit is connected in parallel to inlet manifold and exhaust main by air intake branch and exhaust branch pipe respectively, described inlet manifold and exhaust main connecting pipe, between inlet manifold on the pipeline and exhaust main, be provided with valve A, the other end of pipeline connects deduster, and described deduster is communicated with blower fan successively by arm and chimney forms the described fume afterheat that utilizes to the preheating device of pre-charging.
The described fume afterheat that utilizes is to the method for pre-charging preheating, and the outer edge surface of described material frame bottom is provided with a plurality of air vents.
The described fume afterheat that utilizes is respectively equipped with valve B and valve C to the method for pre-charging preheating on described air intake branch and the exhaust branch pipe, be provided with by-pass valve control inlet manifold and exhaust main near the pipeline place.
The described fume afterheat that utilizes is to the method for pre-charging preheating, and around the described heat exchange melt pit and bottom is provided with refractory insulating layer.
The described fume afterheat that utilizes is to the method for pre-charging preheating, and the bottom of described melt pit top cover is provided with refractory insulating layer.
The described fume afterheat that utilizes is provided with wild air-valve to the method for pre-charging preheating between described deduster and the pipeline.
The described fume afterheat that utilizes is to the method for pre-charging preheating, described heat exchange melt pit or replace with the heat exchange casing.
The described fume afterheat that utilizes is to the method for pre-charging preheating, and described pipeline is arranged in the air by support or is embedded in underground by the melt pit ring.
Adopt aforesaid technical scheme, the present invention has superiority as described below:
A kind of fume afterheat that utilizes of the present invention is to the method for pre-charging preheating, the present invention enters the heat exchange melt pit by the flue gas that pipeline will melt aluminium stove and holding furnace, in the heat exchange melt pit, utilize high-temperature flue gas that preheating is carried out in the pre-charging in the material frame, not only improved the temperature of pre-charging, reduce the thawing time of molten aluminium stove simultaneously, improved production efficiency, waste heat can annually utilize simultaneously, improved afterheat utilization efficient, further can fully adapt to the thermal change of molten aluminium stove and holding furnace group etc., the present invention has simple in structure, characteristics such as fume afterheat utilization rate height greatly reduce the production cost of enterprise, are particularly suitable for promoting in smelting enterprise.
[description of drawings]
Fig. 1 is structural representation of the present invention;
In the drawings: 1, molten aluminium stove; 2, holding furnace; 3, pipeline; 4, valve A; 5, wild air-valve; 6, deduster; 7, valve B; 8, valve C; 9, melt pit top cover; 10, heat exchange melt pit; 11, melt pit central dividing plate; 12, material frame; 13, air vent; 14, blower fan; 15, chimney.
[specific embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
1 described a kind of fume afterheat that utilizes is to the method for pre-charging preheating by reference to the accompanying drawings, and described method comprises the steps:
The first step, at first preheating device is installed according to designing requirement, after finishing, to be installed and debugging at first opens the valve A4 in the preheating device, valve-off B7 and valve C8, high-temperature flue gas after this moment molten aluminium stove 1 and holding furnace 2 burnings is directly sent into deduster 6 by insulation steel airduct in the pouring material through underground current pipeline 3, in order to prevent that deduster 6 from damaging, connect the temperature that enters deduster 6 flue gases by adjusting wild air-valve 5, the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney 15 by blower fan 14;
Second the step, on the basis of the first step, the material frame 12 that pre-charging is housed is put into heat exchange melt pit 10, cover melt pit top cover 9;
The 3rd the step, treat second the step finish after, valve-off A4, open valve B7 and valve C8, high-temperature flue gas after this moment molten aluminium stove 1 and holding furnace 2 burnings enters the top of the material frame 12 in the heat exchange melt pit 10 by insulation steel airduct in the pouring material through underground current pipeline 3, this moment, high-temperature flue gas carried out preheating to pre-charging, flue gas enters pipeline 3 through the air vent 13 of punishment in advance frame 12 bottoms from top to bottom, flue gas is admitted to deduster 6 then, and the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney 15 by blower fan 14;
The 4th step, will feed in advance by the 3rd step and to repeat the first step after being preheating to design temperature, take out the pre-charging after the preheating this moment, puts into new pre-charging then and carry out the preheating of next round.
The described fume afterheat that utilizes is to the method for pre-charging preheating, described preheating device comprises pipeline 3, valve A4, deduster 6, melt pit top cover 9, heat exchange melt pit 10, material frame 12, blower fan 14 and chimney 15, described pipeline 3 is embedded in underground by the melt pit ring or is arranged in the air by support, in the practice process, for conserve space, preferably pipeline 3 is arranged in the melt pit, one end of pipeline 3 connects one or more molten aluminium stoves 1 and one or more holding furnace 2 respectively, any side at pipeline 3 middle parts is provided with at least one heat exchange melt pit 10 or heat exchange casing, around the described heat exchange melt pit 10 and bottom is provided with refractory insulating layer, be respectively equipped with material frame 12 in described each heat exchange melt pit 10, the outer edge surface of described material frame 12 bottoms is provided with a plurality of air vents 13, be respectively equipped with melt pit top cover 9 at the top of each heat exchange melt pit 10, the bottom of described melt pit top cover 9 is provided with refractory insulating layer, between the outer wall of the middle part of each heat exchange melt pit 10 and material frame 12, be provided with melt pit central dividing plate 11, the upper and lower of each heat exchange melt pit 10 is connected in parallel to inlet manifold and exhaust main by air intake branch and exhaust branch pipe respectively, described inlet manifold and exhaust main connecting pipe 3, wherein be respectively equipped with valve B7 and valve C8 on air intake branch and the exhaust branch pipe, be provided with by-pass valve control inlet manifold and exhaust main near pipeline 3 places, be provided with valve A4 on the pipeline 3 between inlet manifold and the exhaust main, when a heat exchange melt pit 10 only is set, in the upper and lower of heat exchange melt pit 10 respectively by air intake branch and exhaust branch pipe connecting pipe 3, be respectively equipped with valve B7 and valve C8 at the middle part of air intake branch and exhaust branch pipe, the other end of pipeline 3 connects deduster 6, be provided with wild air-valve 5 between described deduster 6 and the pipeline 3, described deduster 6 is communicated with blower fan 14 successively by arm and chimney 15 forms the described fume afterheat that utilizes to the device of pre-charging preheating, and described pre-charging is attached most importance to melting and used aluminium ingot, alloy pig or return block waste material etc.
Part not in the detailed description of the invention is prior art.
The embodiment that selects for use in this article in order to disclose purpose of the present invention currently thinks to suit, and still, will be appreciated that the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the invention scope.
Claims (9)
1. one kind is utilized fume afterheat to the method for pre-charging preheating, and it is characterized in that: described method comprises the steps:
The first step, at first preheating device is installed according to designing requirement, after finishing, to be installed and debugging at first opens the valve A(4 in the preheating device), valve-off B(7) and valve C(8), high-temperature flue gas after this moment molten aluminium stove (1) and holding furnace (2) burning is directly sent into deduster (6) by insulation steel airduct in the pouring material through underground current pipeline (3), in order to prevent that deduster (6) from damaging, connect the temperature that enters deduster (6) flue gas by adjusting wild air-valve (5), the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney (15) by blower fan (14);
Second the step, on the basis of the first step, the material frame (12) that pre-charging is housed is put into heat exchange melt pit (10), cover melt pit top cover (9);
The 3rd step, treat second the step finish after, valve-off A(4), open valve B(7) and valve C(8), high-temperature flue gas after molten aluminium stove (1) and holding furnace (2) burning this moment enters the top of the material frame (12) in the heat exchange melt pit (10) by being incubated the steel airduct in the pouring material through underground current pipeline (3), this moment, high-temperature flue gas carried out preheating to pre-charging, flue gas enters pipeline (3) through the air vent (13) of punishment in advance frame (12) bottom from top to bottom, flue gas is admitted to deduster (6) then, and the flue gas that the process purified treatment reaches after the discharge standard is sent into chimney (15) by blower fan (14);
The 4th step, will feed in advance by the 3rd step and to repeat the first step after being preheating to design temperature, take out the pre-charging after the preheating this moment, puts into new pre-charging then and carry out the preheating of next round.
2. the fume afterheat that utilizes according to claim 1 is to the method for pre-charging preheating, described preheating device comprises pipeline (3), valve A(4), deduster (6), melt pit top cover (9), heat exchange melt pit (10), material frame (12), blower fan (14) and chimney (15), it is characterized in that: an end of described pipeline (3) connects molten aluminium stove (1) and holding furnace (2) respectively, any side at pipeline (3) middle part is provided with at least one heat exchange melt pit (10), be respectively equipped with material frame (12) in described each heat exchange melt pit (10), be respectively equipped with melt pit top cover (9) at the top of each heat exchange melt pit (10), between the outer wall of the middle part of each heat exchange melt pit (10) and material frame (12), be provided with melt pit central dividing plate (11), the upper and lower of each heat exchange melt pit (10) is connected in parallel to inlet manifold and exhaust main by air intake branch and exhaust branch pipe respectively, described inlet manifold and exhaust main connecting pipe (3), between the last inlet manifold of pipeline (3) and exhaust main, be provided with valve A(4), the other end of pipeline (3) connects deduster (6), and described deduster (6) is communicated with blower fan (14) successively by arm and chimney (15) forms the described fume afterheat that utilizes to the preheating device of pre-charging.
3. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: the outer edge surface of described material frame (12) bottom is provided with a plurality of air vents (13).
4. the fume afterheat that utilizes according to claim 2 is to the method for pre-charging preheating, it is characterized in that: be respectively equipped with valve B(7 on described air intake branch and the exhaust branch pipe) and valve C(8), locate to be provided with by-pass valve control inlet manifold and exhaust main near pipeline (3).
5. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: around the described heat exchange melt pit (10) and bottom is provided with refractory insulating layer.
6. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: the bottom of described melt pit top cover (9) is provided with refractory insulating layer.
7. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: be provided with wild air-valve (5) between described deduster (6) and the pipeline (3).
8. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: described heat exchange melt pit (10) or replace with the heat exchange casing.
9. the fume afterheat that utilizes according to claim 2 is characterized in that the method for pre-charging preheating: described pipeline (3) is arranged in the air by support or is embedded in underground by the melt pit ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101550841A CN103278016A (en) | 2013-04-29 | 2013-04-29 | Method of pre-heating pre-loaded material by using waste heat of flue gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101550841A CN103278016A (en) | 2013-04-29 | 2013-04-29 | Method of pre-heating pre-loaded material by using waste heat of flue gas |
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| CN103278016A true CN103278016A (en) | 2013-09-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090968A (en) * | 2016-05-30 | 2016-11-09 | 合肥雄川机械销售有限公司 | A kind of aluminium melting furnace fume afterheat gradient utilization system |
| CN113432440A (en) * | 2021-05-25 | 2021-09-24 | 苏州鼎佳炉窑科技有限公司 | Waste heat recovery system of aluminum alloy casting workshop |
| CN114485162A (en) * | 2022-02-28 | 2022-05-13 | 国网浙江省电力有限公司电力科学研究院 | Natural gas aluminum smelting furnace |
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| CN2154265Y (en) * | 1993-02-26 | 1994-01-26 | 李京浩 | Well activation charring stove for active carbon fibre material |
| JP2004309120A (en) * | 2003-01-20 | 2004-11-04 | Ebara Corp | Heat recovery method, combustible treating method, heat recovery apparatus, and combustible treating apparatus |
| CN201184597Y (en) * | 2008-01-14 | 2009-01-21 | 吉林省三意环保锅炉有限公司 | Refuse burning processing apparatus capable of implementing zero discharge of dioxins and powder dust |
| CN201926319U (en) * | 2010-10-14 | 2011-08-10 | 佛山市通润热能科技有限公司 | Preheating system for aluminum melting furnace and aging furnace |
| CN201964778U (en) * | 2010-10-14 | 2011-09-07 | 佛山市通润热能科技有限公司 | Preheating system for aluminum melting furnace and homogenizing furnace |
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2013
- 2013-04-29 CN CN2013101550841A patent/CN103278016A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154265Y (en) * | 1993-02-26 | 1994-01-26 | 李京浩 | Well activation charring stove for active carbon fibre material |
| JP2004309120A (en) * | 2003-01-20 | 2004-11-04 | Ebara Corp | Heat recovery method, combustible treating method, heat recovery apparatus, and combustible treating apparatus |
| CN201184597Y (en) * | 2008-01-14 | 2009-01-21 | 吉林省三意环保锅炉有限公司 | Refuse burning processing apparatus capable of implementing zero discharge of dioxins and powder dust |
| CN201926319U (en) * | 2010-10-14 | 2011-08-10 | 佛山市通润热能科技有限公司 | Preheating system for aluminum melting furnace and aging furnace |
| CN201964778U (en) * | 2010-10-14 | 2011-09-07 | 佛山市通润热能科技有限公司 | Preheating system for aluminum melting furnace and homogenizing furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090968A (en) * | 2016-05-30 | 2016-11-09 | 合肥雄川机械销售有限公司 | A kind of aluminium melting furnace fume afterheat gradient utilization system |
| CN113432440A (en) * | 2021-05-25 | 2021-09-24 | 苏州鼎佳炉窑科技有限公司 | Waste heat recovery system of aluminum alloy casting workshop |
| CN114485162A (en) * | 2022-02-28 | 2022-05-13 | 国网浙江省电力有限公司电力科学研究院 | Natural gas aluminum smelting furnace |
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Application publication date: 20130904 |