CN111434397A - Residual anode flue gas collection method and device - Google Patents

Residual anode flue gas collection method and device Download PDF

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Publication number
CN111434397A
CN111434397A CN201910033881.XA CN201910033881A CN111434397A CN 111434397 A CN111434397 A CN 111434397A CN 201910033881 A CN201910033881 A CN 201910033881A CN 111434397 A CN111434397 A CN 111434397A
Authority
CN
China
Prior art keywords
anode
flue gas
scrap
carriage
residual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910033881.XA
Other languages
Chinese (zh)
Inventor
张健
刘雅锋
胡红武
孙康健
刘铭
王旋
邹智勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Aluminum International Engineering Corp ltd
Shenyang Aluminum and Magnesium Engineering and Research Institute Co Ltd
Original Assignee
China Aluminum International Engineering Corp ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Aluminum International Engineering Corp ltd filed Critical China Aluminum International Engineering Corp ltd
Priority to CN201910033881.XA priority Critical patent/CN111434397A/en
Publication of CN111434397A publication Critical patent/CN111434397A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/007Fume suction nozzles arranged on a closed or semi-closed surface, e.g. on a circular, ring-shaped or rectangular surface adjacent the area where fumes are produced

Abstract

The invention discloses a residual anode flue gas collecting method and a device, when a trailer enters an electrolysis workshop, an anode group is replaced after a residual anode flue gas collecting device reaches a corresponding position, a control cabinet opens a vehicle door, the trailer hangs a new anode group onto a heat-insulating fire-resistant layer of a chassis of the residual anode flue gas collecting device, the residual anode flue gas collecting device moves to an electrolysis bath, and an active smoke exhaust device is connected with a workshop purification pipeline, and the invention has the advantages that: flue gas among the hot anode scrap cooling process can be collected well in the anode scrap flue gas collection device for aluminium electroloysis, and take away through initiative fume extractor's exhaust pipe and workshop exhaust pipe, because this anode scrap flue gas collection device self can bear the weight of the anode group, need not "make up" with the anode tray, bear the weight of the anode group quantity on the anode tray and can be more than the anode group quantity on the anode tray on the anode scrap flue gas collection device, reduce electrolysis workshop anode tray volume of putting, the scattering of material when having avoided multi-functional crane to hoist the walking of hot anode scrap in the workshop, the flue gas dust distributes along the journey.

Description

Residual anode flue gas collection method and device
Technical Field
The invention relates to a flue gas collecting vehicle, in particular to a residual anode flue gas collecting technology of an aluminum electrolysis workshop.
Background
According to the characteristics of the production process, at least one anode group is replaced every day in the prebaked anode aluminum electrolytic cell. At present, most of domestic electrolytic aluminum plants place the replaced hot anode scrap on an anode tray in a workshop, naturally cool the anode tray on the large surface of the electrolytic workshop for nearly 8 hours, and then transport the anode tray and the anode scrap out of the electrolytic workshop by an anode trailer. However, the temperature of the hot anode scrap after replacement can reach over 600 ℃, and a large amount of harmful flue gas such as fluoride gas, dust and the like can be emitted in the natural cooling process. If the hot anode scrap smoke is not collected by the device in the workshop, the device belongs to the unorganized emission of the workshop, and can not adapt to the requirements of relevant national laws and regulations.
The prior art is mainly divided into two methods. The method comprises the steps of building a residual anode cooling workshop, namely, intensively stacking hot residual anodes to one place, and uniformly collecting flue gas. The second method is to use the movable box to push and cover the hot anode scrap and the anode tray manually, and then to install the movable gas-collecting cover plate manually to form the closed gas-collecting hood. The former has the disadvantages of frequent opening of a workshop gate, leakage of flue gas, overlarge fan load, high energy consumption and poor gas collection effect. The latter has the disadvantages that the manpower consumption is high, the moving of the box and the carrying of the gas-collecting cover plate are both completed manually, in addition, the tightness of the flue gas collecting device formed after the box body is combined with the anode tray is difficult to ensure, and when the tray is heated and deformed, the box body and the tray cannot be combined, which brings inconvenience to the production.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a method and a device for collecting anode scrap flue gas, and the specific technical scheme is as follows:
a residual anode flue gas collecting method, after the trailer carrying new anode group enters the electrolytic plant, the residual anode flue gas collecting device begins to change the anode group after reaching the corresponding position, open the car door through the control cabinet, the crane hangs the new anode group onto the heat insulation fire-resistant layer on the chassis of the residual anode flue gas collecting device, at the same time, hang a residual anode group with flue gas collection completed onto the tray of the trailer, repeat this until the new anode group on the trailer is all put into the residual anode flue gas collecting device; the anode scrap smoke collection device moves to the side of the electrolytic bath, the anode scrap in the electrolytic bath is replaced by the new anode group, meanwhile, the active smoke exhaust device is connected with a workshop purification pipeline, the electrode replacement operation is started, the pipeline draught fan of the active smoke exhaust device is started at the moment, the electric butterfly valve is opened, the anode scrap smoke collection device starts to smoke, after the anode scrap group enters the anode scrap smoke collection device, a car door is closed, the collection of smoke is started, after the smoke is collected, the active smoke exhaust device is disconnected, and the control cabinet controls the anode scrap smoke collection device to move to the side of the trailer to repeat the operation.
The invention further discloses a residual anode flue gas collecting device for realizing the method, which comprises a carriage and is characterized in that: the bottom of the carriage is provided with wheels and a driving device, the side surface of the carriage is provided with a vehicle door, an opening is arranged from the top of the carriage to the edge of the vehicle door, and a sealing felt is arranged at the opening;
a storage battery is arranged on one side of the carriage, a control cabinet is also arranged above the storage battery, the control cabinet is fixedly arranged on the side surface of the carriage, a chassis is arranged below the carriage, a heat-insulating fire-resistant layer is arranged on the chassis, and an active smoke exhaust device is also arranged on the side wall of the carriage; the driving device drives the wheels to rotate, and the control cabinet controls the opening and closing of the vehicle door and the rotation and steering of the wheels;
the bottom end of the opening is coincident with the symmetry axis of the carriage.
The active smoke exhaust device consists of an induced draft fan and an electric butterfly valve.
The door is a split door.
The heat-insulating refractory layer can be built again after being damaged after long-term use, and is built by heat-insulating refractory bricks and refractory mortar.
The driving device of the residual anode flue gas collecting device is powered by a storage battery, and the storage battery can be detachable or rechargeable.
The number of the vehicle doors corresponds to the number of the anode group stations.
The compartment is divided into a plurality of independent spaces, and each independent space is provided with a vehicle door, an opening and an active smoke exhaust device.
The invention has the advantages that: the flue gas in the hot anode scrap cooling process can be well collected in the anode scrap flue gas collecting device for aluminum electrolysis and is taken away through a smoke exhaust pipe of the active smoke exhaust device and a workshop smoke exhaust pipeline, so that the workshop environment is not polluted; the anode group can be borne by the residual anode flue gas collecting device, the residual anode flue gas collecting device does not need to be combined with an anode tray, the sealing performance is better, the residual anode flue gas collecting device can automatically walk without manual pushing, a carriage is provided with a car door, a cover plate does not need to be manually moved, the operation is simple, the labor intensity is low, the number of the anode groups borne by the residual anode flue gas collecting device can be more than that of the anode groups on the anode tray, the arrangement amount of the anode tray in an electrolysis workshop is reduced, and the operation space is saved; the working position of the anode scrap flue gas collecting vehicle is more flexible, and the anode scrap flue gas collecting vehicle can be moved away at any time according to production requirements. When a certain electrolytic cell needs to be changed, the residual anode flue gas collecting vehicle can move to the side of the corresponding electrolytic cell to timely collect the anode, so that the scattering of materials and flue gas dust along the way when a multifunctional crane hoists hot residual anode to walk in a workshop are avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a left side view of the present invention;
in the figure, 1, a carriage; 2. a wheel; 3. a drive device; 4. a storage battery; 5. a control cabinet; 6. a chassis; 7. a heat insulating refractory layer; 8. a vehicle door; 9. an active fume extractor; 10. a pipeline induced draft fan; 11. an electric butterfly valve; 12. sealing the felt; 13. and (4) an anode group.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, as shown in the drawings, the invention discloses a residual anode flue gas collecting method, when a trailer carrying a new anode group enters an electrolysis workshop, the anode group is replaced after a residual anode flue gas collecting device reaches a corresponding position, a vehicle door 8 is opened through a control cabinet 5, a crane hangs the new anode group 13 on a heat insulation fire-resistant layer 7 on a chassis 6 of the residual anode flue gas collecting device, and meanwhile, a group of residual anode groups with flue gas collected completely is hung on a tray of the trailer, and the steps are repeated until all the new anode groups 13 on the trailer are placed in the residual anode flue gas collecting device; the anode scrap gas collection device moves to the side of the electrolytic bath, the anode scrap in the electrolytic bath is replaced by the new anode group 13, meanwhile, the active smoke exhaust device 9 is connected with a workshop purification pipeline, the electrode replacement operation is started, the pipeline induced draft fan 10 of the active smoke exhaust device 9 is started at the moment, the electric butterfly valve 11 is opened, the anode scrap gas collection device starts to smoke, after the anode scrap group enters the anode scrap gas collection device, the vehicle door 8 is closed, the collection of the smoke is started, after the smoke is collected, the active smoke exhaust device 9 is disconnected, and the control cabinet 5 controls the anode scrap gas collection device to move to the side of the trailer to repeat the operation.
The invention further discloses a residual anode flue gas collecting device for realizing the method, which comprises a carriage and is characterized in that: the bottom of the carriage is provided with wheels 2 and a driving device 3, the side surface of the carriage is provided with a vehicle door 8, an opening is arranged from the top of the carriage to the edge of the vehicle door 8, and a sealing felt 12 is arranged at the opening;
a storage battery 4 is arranged on one side of the carriage, a control cabinet 5 is also arranged above the storage battery 4, the control cabinet 5 is fixedly arranged on the side surface of the carriage, a chassis 6 is arranged below the inside of the carriage, a heat-insulating fire-resistant layer 7 is arranged on the chassis 6, and an active smoke exhaust device 9 is also arranged on the side wall of the carriage; the driving device 3 drives the wheels 2 to rotate, and the control cabinet 5 controls the opening and closing of the vehicle door 8 and the rotation and steering of the wheels 2;
the bottom end of the opening is coincident with the symmetry axis of the carriage.
The active smoke exhaust device 9 consists of an induced draft fan 10 and an electric butterfly valve 11.
The door 8 is a split door.
The heat-insulating fire-resistant layer 7 can be built again after being used for a long time and damaged, and the heat-insulating fire-resistant layer 7 is built by heat-insulating fire-resistant bricks and fire-resistant slurry.
The driving device of the residual anode flue gas collecting device is powered by a storage battery 4, and the storage battery 4 can be detachable or rechargeable.
The number of the vehicle doors 8 corresponds to the number of the anode group stations.
The compartment is divided into a plurality of independent spaces, and each independent space is provided with a vehicle door 8, an opening and an active smoke exhaust device 9.

Claims (8)

1. A method for collecting anode scrap flue gas is characterized by comprising the following steps: after a trailer carrying a new anode group enters an electrolysis workshop, the anode group is replaced after the residual anode flue gas collection device reaches a corresponding position, a vehicle door is opened through a control cabinet, a crane hangs the new anode group onto a heat insulation fire-resistant layer on a chassis of the residual anode flue gas collection device, meanwhile, a group of residual anode groups with flue gas collected completely are hung onto a tray of the trailer, and the steps are repeated until all the new anode groups on the trailer are placed into the residual anode flue gas collection device; the anode scrap smoke collection device moves to the side of the electrolytic bath, the anode scrap in the electrolytic bath is replaced by the new anode group, meanwhile, the active smoke exhaust device is connected with a workshop purification pipeline, the electrode replacement operation is started, the pipeline draught fan of the active smoke exhaust device is started at the moment, the electric butterfly valve is opened, the anode scrap smoke collection device starts to smoke, after the anode scrap group enters the anode scrap smoke collection device, a car door is closed, the collection of smoke is started, after the smoke is collected, the active smoke exhaust device is disconnected, and the control cabinet controls the anode scrap smoke collection device to move to the side of the trailer to repeat the operation.
2. A residual anode flue gas collecting device for implementing the method of claim 1, which comprises a carriage, and is characterized in that: the bottom of the carriage is provided with wheels and a driving device, the side surface of the carriage is provided with a vehicle door, an opening is arranged from the top of the carriage to the edge of the vehicle door, and a sealing felt is arranged at the opening;
a storage battery is arranged on one side of the carriage, a control cabinet is also arranged above the storage battery, the control cabinet is fixedly arranged on the side surface of the carriage, a chassis is arranged below the carriage, a heat-insulating fire-resistant layer is arranged on the chassis, and an active smoke exhaust device is also arranged on the side wall of the carriage; the driving device drives the wheels to rotate, and the control cabinet controls the opening and closing of the vehicle door and the rotation and steering of the wheels;
the bottom end of the opening is coincident with the symmetry axis of the carriage.
3. The anode scrap flue gas collection device according to claim 2, wherein: the active smoke exhaust device consists of an induced draft fan and an electric butterfly valve.
4. The anode scrap flue gas collection device according to claim 2, wherein: the door is a split door.
5. The anode scrap flue gas collection device according to claim 2, wherein: the heat-insulating refractory layer can be built again after being damaged after long-term use, and is built by heat-insulating refractory bricks and refractory mortar.
6. The anode scrap flue gas collection device according to claim 2, wherein: the driving device of the residual anode flue gas collecting device is powered by a storage battery, and the storage battery can be detachable or rechargeable.
7. The anode scrap flue gas collection device according to claim 2, wherein: the number of the vehicle doors corresponds to the number of the anode group stations.
8. The anode scrap flue gas collection device according to claim 2, wherein: the compartment is divided into a plurality of independent spaces, and each independent space is provided with a vehicle door, an opening and an active smoke exhaust device.
CN201910033881.XA 2019-01-15 2019-01-15 Residual anode flue gas collection method and device Pending CN111434397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910033881.XA CN111434397A (en) 2019-01-15 2019-01-15 Residual anode flue gas collection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910033881.XA CN111434397A (en) 2019-01-15 2019-01-15 Residual anode flue gas collection method and device

Publications (1)

Publication Number Publication Date
CN111434397A true CN111434397A (en) 2020-07-21

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2727668Y (en) * 2004-05-17 2005-09-21 祝伟虎 Novel bamboo charcoal kiln
CN201634780U (en) * 2010-01-25 2010-11-17 甘肃土木工程科学研究院 Heat-insulating tray
CN102009676A (en) * 2010-11-24 2011-04-13 河南省电力公司洛阳供电公司 Full-automatic stair climbing operation vehicle for electric screen cabinet
CN102397866A (en) * 2010-09-09 2012-04-04 东北大学 Device and method for collecting thermal anode scrap cooling pollutants of aluminum electrolytic cell
CN103303805A (en) * 2013-06-28 2013-09-18 华电重工股份有限公司 Double-layered quay crane for loading and unloading containers
FR3030580A1 (en) * 2014-12-23 2016-06-24 Rio Tinto Alcan Int Ltd CONTAINMENT SYSTEM FOR AN ANODE ASSEMBLY
CN107537229A (en) * 2016-06-23 2018-01-05 沈阳铝镁设计研究院有限公司 Handle the device and method of baking furnace fume
CN207760433U (en) * 2017-12-30 2018-08-24 贵阳铝镁设计研究院有限公司 A kind of anode displacement case

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2727668Y (en) * 2004-05-17 2005-09-21 祝伟虎 Novel bamboo charcoal kiln
CN201634780U (en) * 2010-01-25 2010-11-17 甘肃土木工程科学研究院 Heat-insulating tray
CN102397866A (en) * 2010-09-09 2012-04-04 东北大学 Device and method for collecting thermal anode scrap cooling pollutants of aluminum electrolytic cell
CN102009676A (en) * 2010-11-24 2011-04-13 河南省电力公司洛阳供电公司 Full-automatic stair climbing operation vehicle for electric screen cabinet
CN103303805A (en) * 2013-06-28 2013-09-18 华电重工股份有限公司 Double-layered quay crane for loading and unloading containers
FR3030580A1 (en) * 2014-12-23 2016-06-24 Rio Tinto Alcan Int Ltd CONTAINMENT SYSTEM FOR AN ANODE ASSEMBLY
CN107537229A (en) * 2016-06-23 2018-01-05 沈阳铝镁设计研究院有限公司 Handle the device and method of baking furnace fume
CN207760433U (en) * 2017-12-30 2018-08-24 贵阳铝镁设计研究院有限公司 A kind of anode displacement case

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