CN101929796B - Heating structure at bottom of bin of aluminium anode baking furnace - Google Patents
Heating structure at bottom of bin of aluminium anode baking furnace Download PDFInfo
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- CN101929796B CN101929796B CN2009100121912A CN200910012191A CN101929796B CN 101929796 B CN101929796 B CN 101929796B CN 2009100121912 A CN2009100121912 A CN 2009100121912A CN 200910012191 A CN200910012191 A CN 200910012191A CN 101929796 B CN101929796 B CN 101929796B
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- quirk
- bin
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- heating structure
- baking furnace
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses an anode baking furnace in the aluminium anode production field and in particular relates to a heating structure at the bottom of a bin of the aluminium anode baking furnace. The heating structure comprises a bin and flues at the two sides of the bin and is characterized in that hot bin bottoms are arranged at the bottom of the bin; isolating stacks are arranged in the middle below the hot bin bottoms; left and right heating zones communicated with the flues at the two sides of the bin are arranged at the two sides of the isolating stacks; each left heating zone and each right heating zone are respectively provided with a front heating section and a rear heating section; and each flue is divided into a front flame zone and a rear flame zone. The heating structure solves the following problems: low temperature of the bottoms of the bins of the previous anode baking furnaces, high upper and lower temperature difference of the bins, high flue control temperature, high fuel consumption, reduced capacity of the furnaces, high burning loss of fillers, short change period of flue walls, zero benefit to energy conservation and emission reduction, etc.
Description
Technical field
The present invention relates to the anode-baking furnace of aluminium anode production field, particularly relate to heating structure at bottom of bin of aluminium anode baking furnace.
Background technology
In the aluminum anode roasting production process, in order to guarantee roaster output, green anode general multilayer that adopts in hopper erects closed assembly, every layer of polylith arranged side by side, and the degree of depth of hopper is generally all above 5m.During product by heating; Fuel vertically sprays into the quirk burning from the quirk wall burner hole on the boiler face, under the effect of flame deflected current wall in quirk, be W shape and flow; And get in the quirk of next furnace chamber; Still carry out W shape and flow, be located at the fume extractor at flame system end, enter the stove main chimney flue until entering.In said process, flame or high-temperature flue gas are direct-fired to be the quirk walling, and the quirk wall heats inserts with the mode of conduction heat transfer again, by inserts heat is passed to the anode product, under the regular hour temperature curve, accomplishes the anode-baking process at last.In order to guarantee the roasting quality of anode product; When technical factors such as setting fire path temperature, supply fuel and definite roasting time; Except firing temperature, masonry and the inserts and oneself thermograde that in the conduction heat transfer process, forms of anode product that will consider the anodes centre position, also to consider especially along the temperature difference level on the hopper degree of depth.That is to say, fire path temperature, supply with fuel and confirm process systems such as roasting time, must satisfy the condition that the anode product that is in the interior temperature minimum point of hopper reaches qualified roasting quality fully.
Existing anode roasting furnace for aluminum; For the heating of anode product, the heat that only relies on the quirk wall be located at the hopper two sides to be conducted, and its hopper bottom does not have heating function; This heating arrangement; Shortcoming with following several respects: 1, flame in the quirk or high-temperature flue gas must cause that its enthalpy amount descends rapidly because the quirk masonry absorbs heat in flow process, and it then is low along relative superiority or inferiority on the temperature on the hopper degree of depth being reflected in the hopper; The temperature difference that forms causes the anode-baking product quality inhomogeneous generally at 100 ℃; 2, in order to remedy the hopper bottom low temperature that brings owing to the hopper upper and lower temperature difference; The anode product of guaranteeing whole hopper is all qualified; In actual production, considered the determined quirk control of conduction heat transfer thermograde temperature, also to add the temperature that solves the hopper upper and lower temperature difference; Make the quirk actual temperature improve greatly, obviously improved the Fuel Consumption of stove; 3, in the actual production in order to solve the adverse effect that the hopper upper and lower temperature difference brings, also taked to prolong the measure of roasting curve, the designed productive capacity of stove is descended; 4, the raising of fire path temperature has increased hopper top and has filled burnt oxidization burning loss, has increased the cost of anode production; 5, the raising of fire path temperature has increased the weight of the high temperature of quirk masonry and has born, and the high temperature deformation amount of quirk wall is obviously increased, and has shortened the replacement cycle of quirk wall and the service life of whole stove; 6, the energy has promptly been wasted in the increase of fuel consumption and filling incipient scorch damage, has also strengthened CO
2Discharging, run counter to the country the energy-saving and emission-reduction policy.
Summary of the invention
It is to solve that anode-baking furnace hopper bottom temp is low, the hopper upper and lower temperature difference big, quirk control temperature is high, Fuel Consumption is big, the stove production capacity reduces, the inserts scaling loss is big, the quirk wall replacement cycle is short, be unfavorable for problem such as energy-saving and emission-reduction that the present invention is exactly to provide in order to solve the problems of the technologies described above a kind of heating structure at bottom of bin of aluminium anode baking furnace, purpose.
The present invention is achieved in that heating structure at bottom of bin of aluminium anode baking furnace in order to achieve the above object; Comprise hopper, be located at the quirk of the both sides of hopper, at the bottom of the bottom of hopper is provided with hot hopper; Be provided with in the middle of below at the bottom of the hot hopper and isolate buttress; In the left and right sides thermal treatment zone of the both sides that isolate buttress for communicating with hopper both sides quirk, bringing-up section and rear heat zone before each thermal treatment zone, the left and right sides is provided with, flame zone and back flame zone before every quirk is divided into.
Before described bringing-up section by preceding heat tunnel, be located at before preceding bringing-up section inlet and preceding bringing-up section export mixes on the heat tunnel; Before flame zone constitute by first quirk that communicates with the same bringing-up section inlet and second quirk that communicates with the same bringing-up section outlet.
Be provided with partition wall between described first quirk and second quirk.
The top of described first quirk is provided with the quirk inlet.
Described rear heat zone by the back heat tunnel, be located at rear heat zone inlet and the rear heat zone export mixes of back on the heat tunnel; Back flame zone is by constituting with the 3rd quirk that communicates with the rear heat zone inlet with the 4th quirk that communicates with the rear heat zone outlet.
Be provided with partition wall between described the 3rd quirk and the 4th quirk.
The top of described the 4th quirk is provided with the quirk outlet.
The top of the partition wall before described between flame zone and the back flame zone is provided with quirk wall baffling breach.
The top of described quirk is provided with the burner hole.
Bringing-up section inlet and preceding bringing-up section outlet shape are rectangle or circle before described, and the size range of its length of side or diameter is 50～600mm.
The cross sectional shape of heat tunnel is rectangle or circle before described, and the size range of its length of side or diameter is 100～800mm.
Described rear heat zone inlet and rear heat zone outlet shape are rectangle or circle, and the size range of its length of side or diameter is 50～600mm.
The cross sectional shape of described back heat tunnel is rectangle or circle, and the size range of its length of side or diameter is 100～800mm.
Advantageous effect of the present invention:
1, in two quirk wall heating of hopper anode product, the hopper bottom also is provided with flame or high-temperature flue gas passage, can implement heating to the hopper bottom, effectively reduces the upper and lower temperature difference of hopper and anode product, improves anode product roasting quality.
2, can be reduced to the fire path temperature that remedies the hopper upper and lower temperature difference and improve, help anode-baking furnace and reduce the burning supply, reduce the energy consumption of baked anode product.
3, can reduce the roasting curve of anode product, help improving the production capacity of anode-baking furnace.
4, can reduce the high temperature scaling loss of inserts, reduce the anode-baking production cost.
But 5 holding anode roasters turn round under lower temperature levels, help slowing down the high temperature deformation speed of stove quirk wall, improve the service life of anode-baking furnace, increase the anode-baking economic benefit.
6, can reduce energy resource consumption, improve the energy-conservation level of anode-baking furnace, can effectively reduce solid refuse and CO simultaneously
2Discharging, help environmental protection.
7, simple in structure, easy to implement.
Description of drawings
Fig. 1 is the facade cross-sectional schematic of heating structure at bottom of bin of aluminium anode baking furnace of the present invention.
Fig. 2 is the plan cross-section sketch map of heating structure at bottom of bin of aluminium anode baking furnace of the present invention.
Fig. 3 is the quirk facade cross-sectional schematic of heating structure at bottom of bin of aluminium anode baking furnace of the present invention.
Among the figure, 1, hopper; 2, at the bottom of the hot hopper; 3, isolate buttress; 4, the left thermal treatment zone; 5, the right thermal treatment zone; 6, quirk; 7, preceding bringing-up section; 8, rear heat zone; 9, burner hole; 10, preceding bringing-up section inlet; 11, preceding heat tunnel; 12, preceding bringing-up section outlet; 13, quirk wall baffling breach; 14, rear heat zone inlet; 15, back heat tunnel; 16, rear heat zone outlet; 17, quirk outlet; 18, quirk inlet; 19, partition wall; 20, first quirk; 21, second quirk; 22, the 3rd quirk; 23, the 4th quirk.
The specific embodiment
Combine accompanying drawing to describe in detail in the face of embodiments of the invention down, but protection scope of the present invention is not limit by embodiment.
Shown in Fig. 1-3, heating structure at bottom of bin of aluminium anode baking furnace of the present invention comprises hopper 1; Be located at the quirk 6 of the both sides of hopper 1; At the bottom of the bottom of hopper 1 is provided with hot hopper 2, at the bottom of the hot hopper 2 below in the middle of be provided with and isolate buttress 3, in the left and right sides thermal treatment zone 4,5 of the both sides that isolate buttress 3 for communicating with hopper 1 both sides quirk 6; Bringing-up section 7 and rear heat zone 8 before each thermal treatment zone, the left and right sides 4,5 is provided with, flame zone and back flame zone before every quirk 6 is divided into; Before bringing-up section 7 by preceding heat tunnel 11, be located at before preceding bringing-up section inlet 10 and preceding bringing-up section outlet 12 on the heat tunnel constitute; Before flame zone constitute by first quirk 20 that communicates with the same bringing-up section inlet 10 and second quirk 21 that communicates with the same bringing-up section outlet 12, the top that is provided with partition wall 19, the first quirks 20 between first quirk 20 and second quirk 21 is provided with quirk and enters the mouth 18; Rear heat zone 8 by back heat tunnel 15, be located at rear heat zone inlet 14 and the rear heat zone outlet 16 of back on the heat tunnel 15 and constitute; Back flame zone is by constituting with the 3rd quirk 22 that communicates with rear heat zone inlet 14 with the 4th quirk 23 that communicates with rear heat zone outlet 16; Be provided with partition wall 19 between the 3rd quirk 22 and the 4th quirk 23; The top of the 4th quirk 23 is provided with quirk outlet 17; The top of the partition wall 19 between preceding flame zone and the back flame zone is provided with quirk wall baffling breach 13, and the top of the first, second, third and the 4th quirk 20,21,22,23 of every quirk 6 is provided with burner hole 9.
Preceding bringing-up section inlet, the outlet of preceding bringing-up section, rear heat zone inlet and rear heat zone cross sectional shape are rectangle or circle, and the size range of its length of side or diameter is 50～600mm.
Preceding heat tunnel is rectangle or circle with the cross sectional shape of back heat tunnel, and the size range of its length of side or diameter is 100～800mm.
Flame or high-temperature flue gas are to flow with L shaped mutually compound mode with W shape in the quirk and the thermal treatment zone, the left and right sides in the furnace bottom, can heat simultaneously at the bottom of hopper two walls and the hopper.On the quirk cross section of operation, flame or high-temperature flue gas all are the distribution of falling the T-shape.The thermal treatment zone, the left and right sides of hot hopper bottom is to adopt the refractory material that connects each hopper bottom to build body by laying bricks or stones to separate fully.
Operation principle of the present invention: flame gets into behind first quirk vertically descending from quirk inlet; Entering is located at the preceding bringing-up section inlet of the thermal treatment zone, the left and right sides of hopper 1 bottom; Get into second quirk after bringing-up section exports out in the past through preceding heat tunnel 11 backs; After upwards getting into the 3rd quirk from second quirk from quirk wall baffling breach; Get into the back heat tunnel from rear heat zone inlet, behind heat tunnel later, export out and enter into the 4th quirk, export out the quirk that flows into the downstream furnace chamber from the quirk of the 4th quirk top then and enter the mouth from rear heat zone.Flame or high-temperature flue gas all flow by above-mentioned flow process in intrasystem all furnace chamber quirks, are discharged to main chimney flue until the quirk of end furnace chamber.Flowing of flame or high-temperature flue gas heated at the bottom of hopper sidewall and the hopper simultaneously.
Claims (13)
1. heating structure at bottom of bin of aluminium anode baking furnace; Comprise hopper, be located at the quirk of the both sides of hopper, it is characterized in that at the bottom of the bottom of hopper is provided with hot hopper; Be provided with in the middle of below at the bottom of the hot hopper and isolate buttress; In the left and right sides thermal treatment zone of the both sides that isolate buttress for communicating with hopper both sides quirk, bringing-up section and rear heat zone before each thermal treatment zone, the left and right sides is provided with, flame zone and back flame zone before every quirk is divided into; Before described bringing-up section by preceding heat tunnel, be located at before preceding bringing-up section inlet and preceding bringing-up section export mixes on the heat tunnel; Before flame zone constitute by first quirk that communicates with the same bringing-up section inlet and second quirk that communicates with the same bringing-up section outlet.
2. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1 is characterized in that being provided with partition wall between described first quirk and second quirk.
3. heating structure at bottom of bin of aluminium anode baking furnace according to claim 2 is characterized in that the top of described first quirk is provided with the quirk inlet.
4. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1, it is characterized in that described rear heat zone by the back heat tunnel, be located at rear heat zone inlet and the rear heat zone export mixes of back on the heat tunnel; Back flame zone is by constituting with the 3rd quirk that communicates with the rear heat zone inlet with the 4th quirk that communicates with the rear heat zone outlet.
5. heating structure at bottom of bin of aluminium anode baking furnace according to claim 4 is characterized in that being provided with partition wall between described the 3rd quirk and the 4th quirk.
6. heating structure at bottom of bin of aluminium anode baking furnace according to claim 5 is characterized in that the top of described the 4th quirk is provided with the quirk outlet.
7. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1 is characterized in that the top of the partition wall between described preceding flame zone and the back flame zone is provided with quirk wall baffling breach.
8. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1 and 2 is characterized in that the top of described first quirk and second quirk is provided with the burner hole.
9. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1 is characterized in that described preceding bringing-up section inlet and preceding bringing-up section outlet shape are rectangle or circle, and the size range of its length of side or diameter is 50～600mm.
10. heating structure at bottom of bin of aluminium anode baking furnace according to claim 1 is characterized in that the cross sectional shape of described preceding heat tunnel is rectangle or circle, and the size range of its length of side or diameter is 100～800mm.
11. heating structure at bottom of bin of aluminium anode baking furnace according to claim 4 is characterized in that described rear heat zone inlet and rear heat zone outlet shape are rectangle or circle, the size range of its length of side or diameter is 50～600mm.
12. heating structure at bottom of bin of aluminium anode baking furnace according to claim 4 is characterized in that the cross sectional shape of described back heat tunnel is rectangle or circle, the size range of its length of side or diameter is 100～800mm.
13. heating structure at bottom of bin of aluminium anode baking furnace according to claim 5 is characterized in that the top of described the 3rd quirk and the 4th quirk is provided with the burner hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100121912A CN101929796B (en) | 2009-06-23 | 2009-06-23 | Heating structure at bottom of bin of aluminium anode baking furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100121912A CN101929796B (en) | 2009-06-23 | 2009-06-23 | Heating structure at bottom of bin of aluminium anode baking furnace |
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| Publication Number | Publication Date |
|---|---|
| CN101929796A CN101929796A (en) | 2010-12-29 |
| CN101929796B true CN101929796B (en) | 2012-03-28 |
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| CN110144465B (en) * | 2019-03-19 | 2020-05-19 | 东北大学 | Device and process for treating iron-containing and zinc-containing dust and sludge |
| CN110541175B (en) * | 2019-10-17 | 2021-07-06 | 台州衡力金属制品有限公司 | Heating device for electrolytic aluminum anode production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201488545U (en) * | 2009-09-10 | 2010-05-26 | 沈阳铝镁设计研究院 | Heating structure at bottom of material box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201488545U (en) * | 2009-09-10 | 2010-05-26 | 沈阳铝镁设计研究院 | Heating structure at bottom of material box |
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Granted publication date: 20120328 Termination date: 20200623 |