CN211471575U - Aluminum electrolysis residual anode heat recovery device - Google Patents

Aluminum electrolysis residual anode heat recovery device Download PDF

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Publication number
CN211471575U
CN211471575U CN201922328917.5U CN201922328917U CN211471575U CN 211471575 U CN211471575 U CN 211471575U CN 201922328917 U CN201922328917 U CN 201922328917U CN 211471575 U CN211471575 U CN 211471575U
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China
Prior art keywords
anode
anode scrap
heat
cooling box
water tank
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CN201922328917.5U
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Chinese (zh)
Inventor
任建国
刘延峰
吴旭光
谢东峰
柴亚磊
刘宣伟
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Chalco Shanxi New Material Co ltd
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Chalco Shanxi New Material Co ltd
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Abstract

The utility model discloses an aluminium electroloysis anode scrap heat recovery unit, including the anode scrap cooler bin, the anode scrap cooler bin below is equipped with the circulation tank of channel-section steel structure, the anode scrap cooler bin top is equipped with the pipe of discharging fume, the anode scrap cooler bin both sides adopt slide rail formula sealing door sealed. The utility model improves the temperature of the upper groove of the new anode through the heat exchange between the residual anode and the new anode; simultaneously through radiant heat heating circulating water, the water low-speed circulation in the water tank effectively avoids the water tank because of expend with heat and contract with cold causes unusual such as crack. The utility model discloses can realize that the flue gas inorganization discharges up to standard, realize in step that the positive pole preheats function, the quick heat transfer of circulating water improves the heat rate of recycling.

Description

Aluminum electrolysis residual anode heat recovery device
Technical Field
The utility model belongs to the technical field of aluminium electroloysis, concretely relates to aluminium electroloysis anode scrap heat reclamation device.
Background
The temperature of the anode scrap of the aluminum electrolytic cell is high, and heat loss and high-temperature smoke exist in the anode scrap discharging process, so that the aluminum electrolytic cell is controlled by national environmental protection. In order to reduce the influence of environmental protection, the current used is a 'hot anode scrap cooling box', the principle of the box is that an anode tray is covered by a telescopic movable box body, and the anode scrap is naturally cooled after being placed for four hours and then sent to the next procedure, but the existing anode scrap heat recovery box only has a natural cooling effect and has great heat (energy) waste.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides an aluminum electrolysis anode scrap heat recovery device, which preheats a new anode by using anode scrap heat, reduces the heat energy absorption after the new anode is put into a tank, recovers the anode scrap smoke by using negative pressure, and simultaneously manufactures a special heat exchange water tank system, so that the rest heat is collected by using water; and secondly, the circulating water quickly reduces the temperature of the anode scrap, reduces the change of expansion with heat and contraction with cold to the steel structure of the water tank, and can effectively save energy consumption.
The utility model discloses a realize through following technical scheme:
an aluminum electrolysis residual anode heat recovery device comprises a residual anode cooling box, wherein the residual anode cooling box is arranged beside end head grooves of each electrolysis work area, can contain 10 groups of anodes and 10 groups of residual anodes, and is alternately arranged; a smoke exhaust pipe is arranged above the electrolytic cell and is connected with the negative pressure system of the electrolytic cell; a circulating water tank with a channel steel structure is arranged below the anode scrap cooling tank, the upper part of the circulating water tank is made of a 10mm steel plate, and the lower part of the circulating water tank is made of radiating fins; the two sides of the anode scrap cooling box are sealed by adopting sliding rail type sealing doors, so that the anode scrap and the anode can be conveniently hoisted.
Hoisting the residual anode in the cooling box into a tray to be discharged out of an electrolysis workshop, hoisting the preheated new anode into the tray, and pulling the new anode to the front of the electrode changing tank for later use; after the replaced anode scrap is filled with a tray, the trailer is pulled to the cooling box and hung into the cooling box, or the crane directly hangs the anode scrap into the cooling box after pulling out the anode scrap.
The following problems need to be solved when designing the circulating water tank: firstly, the problem that the water tank is welded and leaks due to expansion with heat and contraction with cold to cause the abnormal insulation of the electrolytic direct current series to the ground is avoided; and secondly, two leakage-proof measures are made, and even if circulating water leaks, the circulating water is discharged through a special channel, so that the potential hazards of series grounding are eliminated.
The utility model has the advantages that: the utility model improves the temperature of the upper groove of the new anode through the heat exchange between the residual anode and the new anode; simultaneously through radiant heat heating circulating water, the water low-speed circulation in the water tank effectively avoids the water tank because of expend with heat and contract with cold causes unusual such as crack. The utility model discloses can realize that the flue gas inorganization discharges up to standard, realize in step that the positive pole preheats function, the quick heat transfer of circulating water improves the heat rate of recycling.
Drawings
FIG. 1 is a flow chart of a residual anode heat recovery device;
wherein, 1, a sliding rail type sealing door; 2. a smoke exhaust pipe; 3. residual anode and new anode; 4. a circulating water tank system.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, after the replaced residual anode is filled with a tray, a trailer is pulled to the residual anode cooling box beside the end slot of each electrolytic work area, slide rail type sealing doors on two sides of the residual anode cooling box are opened, the residual anode is hung into the box, or a crown block is directly hung into the cooling box after pulling out the residual anode, the residual anode and the new anode are alternately placed, the heat exchange between the inserted residual anode and the new anode is realized, the temperature of the upper slot of the new anode is improved, the flue gas generated in the cooling process is discharged into the existing flue gas system through a negative pressure system of a smoke discharge pipe above the residual anode cooling box, the residual heat is taken away through a cooling fin of a circulating water tank of a channel steel structure below the residual anode cooling box, and the abnormity such as cracks caused by cold contraction of the water tank is effectively avoided. And hoisting the preheated new anode into the tray, pulling the new anode to the front of the electrode changing tank for standby, and hoisting the cooled residual anode into the tray to be discharged out of the electrolytic plant.
The system can realize the purpose of reaching the standard of the unorganized emission of the flue gas, synchronously realize the anode preheating function and the rapid heat exchange of circulating water, and improve the heat reutilization rate.

Claims (4)

1. The utility model provides an aluminium electroloysis anode scrap heat reclamation device, includes the anode scrap cooling box, its characterized in that: the anode scrap cooling box is characterized in that a circulating water tank of a channel steel structure is arranged below the anode scrap cooling box, a smoke exhaust pipe is arranged above the anode scrap cooling box, and two sides of the anode scrap cooling box are sealed by sliding rail type sealing doors.
2. The aluminum electrolysis stub heat recovery device according to claim 1, wherein: and the anode in the anode scrap cooling box are alternately arranged.
3. The aluminum electrolysis stub heat recovery device according to claim 1, wherein: the upper part of the circulating water tank is made of a 10mm steel plate, and the lower part of the circulating water tank is made of radiating fins.
4. The aluminum electrolysis stub heat recovery device according to claim 1, wherein: the smoke exhaust pipe is connected with the negative pressure system of the electrolytic cell.
CN201922328917.5U 2019-12-23 2019-12-23 Aluminum electrolysis residual anode heat recovery device Active CN211471575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922328917.5U CN211471575U (en) 2019-12-23 2019-12-23 Aluminum electrolysis residual anode heat recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922328917.5U CN211471575U (en) 2019-12-23 2019-12-23 Aluminum electrolysis residual anode heat recovery device

Publications (1)

Publication Number Publication Date
CN211471575U true CN211471575U (en) 2020-09-11

Family

ID=72361153

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922328917.5U Active CN211471575U (en) 2019-12-23 2019-12-23 Aluminum electrolysis residual anode heat recovery device

Country Status (1)

Country Link
CN (1) CN211471575U (en)

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