CN105803491A - Heat reclamation device for sidewall of aluminium reduction cell - Google Patents
Heat reclamation device for sidewall of aluminium reduction cell Download PDFInfo
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- CN105803491A CN105803491A CN201410839266.5A CN201410839266A CN105803491A CN 105803491 A CN105803491 A CN 105803491A CN 201410839266 A CN201410839266 A CN 201410839266A CN 105803491 A CN105803491 A CN 105803491A
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- kuppe
- gas collection
- electrolysis bath
- collection flue
- recovery device
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Abstract
The invention provides a heat reclamation device for a sidewall of an aluminium reduction cell. The device comprises the following components: a dome, a gas collection flue, an air heat exchanger and an exhaust fan. A hole for heat conduction is opened on the dome and passes through the dome, one end of the gas collection flue is connected to the hole for heat conduction, the exhaust fan is arranged at the other end of the gas collection flue, and the air heat exchanger is arranged on the gas collection flue. The device solves the problem exists in the prior art that electrolytic aluminium industry has high energy consumption and low energy utilization rate. The device belongs to the energy saving field of aluminium reduction cells.
Description
Technical field
The present invention relates to a kind of heat reclamation device, belong to aluminum electrolysis bath energy-saving field.
Background technology
At present, the smelting process of worldwide production metallic aluminium continues to use cryolite one alumina molten salt electrolysis method always, and the main body of the method produces the equipment aluminium cell that mainly power consumption is higher.At present, the ton aluminum direct current consumption of domestic and international aluminium cell is generally between 12500～14000kWh, and so high energy resource consumption is in current energy shortage, and electricity price surging epoch have become " bottleneck " of restriction aluminum electrolysis industry development and existence.Currently, the capacity usage ratio of aluminium cell is also very low, it is common between 45～48%, say, that often producing 1 ton of metallic aluminium, be wasted by the electric energy that there are about more than 50%, this is more the increase in the cost pressure of aluminum electrolysis.Sidewall heat dissipation capacity especially by aluminium cell reaches the 20～43% of heat income, sidewall heat-delivery surface temperature can reach 200～400 DEG C (up to more than 600 DEG C during roasting and startings), it may be considered that realized the heat recovery of industrial furnace by low-temp low-pressure cogeneration mode.
The capacity usage ratio statistics of several pre-calcining electrolytic cells is as follows:
Owing to Aluminium Industry belongs to " highly energy-consuming " industry, therefore, it is necessary to explore new aluminium electroloysis waste heat recycle method, to realize the energy-saving and cost-reducing of Aluminum Electrolysis Production process.
Summary of the invention
It is an object of the invention to: a kind of aluminium cell sidewall Dissipated heat recovery device is provided, high to solve existing Aluminium Industry energy consumption, the problem that energy utilization rate is low.
The solution of the present invention is as follows: aluminium cell sidewall Dissipated heat recovery device, including kuppe, gas collection flue, air heat exchanger and air exhauster, kuppe offers the thermal hole of through kuppe, one end of gas collection flue is docked with thermal hole, air exhauster is arranged on the other end of gas collection flue, and described air heat exchanger is arranged on gas collection flue.
Preferably, being equipped with heat conduction cover between kuppe and gas collection flue, heat conduction cover covers on kuppe, and thermal hole is all housed in heat conduction cover, and heat conduction cover offers exhaust outlet, and one end of described gas collection flue is docked with exhaust outlet, and gas collection flue is provided with adjustment valve.
Preferably, thermal hole is opened in the upper end of kuppe, and the bottom of kuppe is ventilating structure, or the bottom of kuppe is that gas permeable material is made.
Preferably, the inwall of kuppe and/or heat conduction cover and/or outer wall place are provided with thermal insulation layer.
Preferably, kuppe covers in the exterior side wall of electrolysis bath along the circumferencial direction of electrolysis bath, and heat conduction cover covers on the upper end of kuppe along the circumferencial direction of electrolysis bath.
Preferably, heat conduction cover being further opened with air inlet, air inlet is separately positioned on the two ends that electrolysis bath is relative with exhaust outlet, air inlet is also equipped with regulate valve.
Preferably, kuppe include along electrolysis bath circumferencial direction arrange upper coaming plate and lower coaming plate and close plate, close plate and be enclosed within the outside of electrolysis bath along the circumferencial direction of electrolysis bath end to end, and the upper side seal closing plate is fixed on electrolysis bath on coaming plate, the lower side seals closing plate is fixed under electrolysis bath on coaming plate.
Preferably, also including cogeneration unit, described air heat exchanger is connected with cogeneration unit, in order to realize cogeneration.
The present invention is compared with prior art, have the advantages that and kuppe is set, kuppe is covered on the sidewall of electrolysis bath, gas temperature in kuppe is made to raise after cell sidewall heat radiation, then by air exhauster, the steam in kuppe is pumped in collecting pipe, when steam is by air heat exchanger, heat energy in steam is again converted recovery and is used, thus greatly reducing the energy loss that the heat radiation of electrolysis bath cell wall causes, the heat dissipation lateral wall of the present invention and aluminium cell closely cooperates, simple and compact for structure, it is convenient to install, and there is feature that is easily operated and that safeguard, the method is more suitable for scale, the popularization and application of producing in serial form.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the present invention, and wherein, 9 represent electrolysis bath exterior side wall；
Fig. 2 be in Fig. 1 A-A to schematic partial cross-sectional view.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below with reference to accompanying drawings,
Embodiment:
See figures.1.and.2, aluminium cell sidewall Dissipated heat recovery device described in the present embodiment, including kuppe 1, gas collection flue 2, air heat exchanger 3, air exhauster 4, heat conduction cover 5 and cogeneration unit 8,
Described kuppe 1 is existing structure by the coaming plate structure of the upper coaming plate 12 arranged along electrolysis bath circumferencial direction and lower coaming plate 13(cell sidewall arranged outside, herein, the structure of kuppe 1 utilizes the existing structure on electrolysis bath outer wall to be designed, simplify the structural design of kuppe 1, ) and close plate 14 form, close plate 14 and be enclosed within the outside of electrolysis bath along the circumferencial direction of electrolysis bath end to end, and the upper side seal closing plate 14 is fixed on electrolysis bath on coaming plate 12, the lower side seals closing plate 14 is fixed under electrolysis bath on coaming plate 13, the upper end (namely going up on coaming plate 12) of kuppe 1 offers the thermal hole 11 of through kuppe 1,
Heat conduction cover 5 covers on the upper end of kuppe 1 along the circumferencial direction of electrolysis bath, and thermal hole 11 is all housed in heat conduction cover 5, kuppe 1 is connected with heat conduction cover 5 by thermal hole 11, the inwall place of heat conduction cover 5 is equipped with thermal insulation layer 6, heat conduction cover 5 offers exhaust outlet 51, being further opened with air inlet 52 on heat conduction cover 5, air inlet 52 is separately positioned on the two ends that electrolysis bath is relative with exhaust outlet 51, and air inlet 52 is provided with adjustment valve 7.One end of gas collection flue 2 is docked with exhaust outlet 51, described air exhauster 4 is arranged on the other end of gas collection flue 2, air heat exchanger 3 is arranged on gas collection flue 2, air heat exchanger 3 is connected with cogeneration unit 8, to realize cogeneration, it is also equipped with on gas collection flue 2 or on exhaust outlet 51 regulating valve 7.
Claims (8)
1. aluminium cell sidewall Dissipated heat recovery device, it is characterized in that: include kuppe (1), gas collection flue (2), air heat exchanger (3) and air exhauster (4), kuppe (1) offers the thermal hole (11) of through kuppe (1), one end of gas collection flue (2) is docked with thermal hole (11), air exhauster (4) is arranged on the other end of gas collection flue (2), and described air heat exchanger (3) is arranged on gas collection flue (2).
2. aluminium cell sidewall Dissipated heat recovery device according to claim 1, it is characterized in that: between kuppe (1) and gas collection flue (2), be equipped with heat conduction cover (5), heat conduction cover (5) covers on kuppe (1), and thermal hole (11) is all housed in heat conduction cover (5), heat conduction cover (5) offers exhaust outlet (51), one end of described gas collection flue (2) is docked with exhaust outlet (51), and gas collection flue (2) is provided with adjustment valve (7).
3. aluminium cell sidewall Dissipated heat recovery device according to claim 1 or claim 2, it is characterized in that: described thermal hole (11) is opened in the upper end of kuppe (1), the bottom of kuppe (1) is ventilating structure, or the bottom of kuppe (1) is that gas permeable material is made.
4. aluminium cell sidewall Dissipated heat recovery device according to claim 2, it is characterised in that: the inwall of described kuppe (1) and/or heat conduction cover (5) and/or outer wall place are provided with thermal insulation layer (6).
5. aluminium cell sidewall Dissipated heat recovery device according to claim 2, it is characterized in that: described kuppe (1) covers in the exterior side wall of electrolysis bath along the circumferencial direction of electrolysis bath, heat conduction cover (5) covers on the upper end of kuppe (1) along the circumferencial direction of electrolysis bath.
6. aluminium cell sidewall Dissipated heat recovery device according to claim 2, it is characterized in that: described heat conduction cover (5) is further opened with air inlet (52), air inlet (52) is separately positioned on the two ends that electrolysis bath is relative with exhaust outlet (51), air inlet (52) is also equipped with regulate valve (7).
7. aluminium cell sidewall Dissipated heat recovery device according to claim 1, it is characterized in that: described kuppe (1) include along electrolysis bath circumferencial direction arrange upper coaming plate (12) and lower coaming plate (13) and closing plate (14), close plate (14) and be enclosed within the outside of electrolysis bath along the circumferencial direction of electrolysis bath end to end, and the upper side seal closing plate (14) is fixed on electrolysis bath on coaming plate (12), the lower side seals closing plate (14) is fixed under electrolysis bath on coaming plate (13).
8. aluminium cell sidewall Dissipated heat recovery device according to claim 1, it is characterised in that: also including cogeneration unit (8), described air heat exchanger (3) is connected with cogeneration unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839266.5A CN105803491A (en) | 2014-12-30 | 2014-12-30 | Heat reclamation device for sidewall of aluminium reduction cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839266.5A CN105803491A (en) | 2014-12-30 | 2014-12-30 | Heat reclamation device for sidewall of aluminium reduction cell |
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| Publication Number | Publication Date |
|---|---|
| CN105803491A true CN105803491A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410839266.5A Pending CN105803491A (en) | 2014-12-30 | 2014-12-30 | Heat reclamation device for sidewall of aluminium reduction cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210793A (en) * | 2020-10-19 | 2021-01-12 | 郑州轻冶科技股份有限公司 | Aluminum electrolytic cell with heat pipe heat exchanger on side part |
| CN115029735A (en) * | 2022-05-26 | 2022-09-09 | 中南大学 | New energy consumption-oriented aluminum electric heating heat balance regulation and control device and method |
Citations (3)
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| CN201566132U (en) * | 2009-12-22 | 2010-09-01 | 承美机械有限公司 | Energy-saving and carbon reduction heat recovery device |
| CN102134727A (en) * | 2011-03-10 | 2011-07-27 | 伊川龙海科技实业有限公司 | Method for recycling waste heat of electrolytic cell and device thereof |
| CN105441977A (en) * | 2014-09-30 | 2016-03-30 | 冀宣名 | Electrolytic cell heat conducting hood |
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2014
- 2014-12-30 CN CN201410839266.5A patent/CN105803491A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201566132U (en) * | 2009-12-22 | 2010-09-01 | 承美机械有限公司 | Energy-saving and carbon reduction heat recovery device |
| CN102134727A (en) * | 2011-03-10 | 2011-07-27 | 伊川龙海科技实业有限公司 | Method for recycling waste heat of electrolytic cell and device thereof |
| CN105441977A (en) * | 2014-09-30 | 2016-03-30 | 冀宣名 | Electrolytic cell heat conducting hood |
Non-Patent Citations (1)
| Title |
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| 周乃君等: "铝电解槽低温烟气余热发电技术探讨", 《轻金属》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210793A (en) * | 2020-10-19 | 2021-01-12 | 郑州轻冶科技股份有限公司 | Aluminum electrolytic cell with heat pipe heat exchanger on side part |
| CN115029735A (en) * | 2022-05-26 | 2022-09-09 | 中南大学 | New energy consumption-oriented aluminum electric heating heat balance regulation and control device and method |
| CN115029735B (en) * | 2022-05-26 | 2024-01-30 | 中南大学 | Aluminum electrolysis heat balance regulating and controlling device and method for new energy consumption |
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Application publication date: 20160727 |