CN107366007A - A kind of aluminium cell pinkeye feed opening building method - Google Patents

A kind of aluminium cell pinkeye feed opening building method Download PDF

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Publication number
CN107366007A
CN107366007A CN201710654066.6A CN201710654066A CN107366007A CN 107366007 A CN107366007 A CN 107366007A CN 201710654066 A CN201710654066 A CN 201710654066A CN 107366007 A CN107366007 A CN 107366007A
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crust
pinkeye
feed opening
aluminium cell
aluminium
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高德金
高伟
王晓宇
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/14—Devices for feeding or crust breaking
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/20—Automatic control or regulation of cells

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

A kind of aluminium cell pinkeye feed opening building method of the present invention, main application and the adjustment of the production Technology situation of aluminium cell.Its technical characteristic is：On aluminum electrolysis cell upper part truss structure, the sidepiece of crust breaking cylinder, one screw height adjuster of construction is set during electrolysis production, can be according to two elevational changes in aluminium cell molten bath, rotate the screw of the height adjuster, adjustment crust breaking cylinder installation fixing point and peening hammer head ballistic motion work lower dead center working depth；With control strike tup to mulch crust face height distance and the method for being inserted into electrolyte solution layer depth, implement the impact operation to mulch crust face, complete to construct shaping to " pinkeye feed opening " and ensure its straightway work.

Description

A kind of aluminium cell pinkeye feed opening building method
Technical field：A kind of aluminium cell pinkeye feed opening building method of the present invention, main application and the life of aluminium cell The adjustment of production. art technology status, the i.e. building method of aluminum oxide in aluminum electrolytic bath feed powder charge door and water electrolytic gas overfall.
Background technology：Aluminium cell is the major technique equipment of Aluminum Electrolysis Production, the production process of aluminium electroloysis be one In the state of thermal balance, alumina powder is added in the electrolyte solution molten bath of electrolytic cell, by DC electrolysis, generated in negative electrode Aluminium liquid, the process for being replaced as hydrocarbon gas is overflowed in anode.
During aluminum electrolysis, in the electrolyte solution being added in aluminium cell for ensureing alumina powder uniformly continuous Electrochemical reaction is participated in, and the balanced of the carbon carrier of oxygen compound displaced overflows the necessity for realizing that aluminum electrolysis technology production is stable Condition.
According to existing aluminium cell Technical facilities in production, the electrolytic aluminium production process formed, its alumina powder are determined Charge door and the make of overfall of hydrocarbon gas be：Pass through the crust breaking gas of aluminum cell crust breaking blanking device Cylinder, promotes strike tup, and the mulch crust layer on electrolyte liquid layer top in electrolytic cell is opened in impact, in anode electrolytic cell at seam Mulch crust face, formed one " pinkeye feed opening ".So that the alumina powder quantitatively flowed out from aluminum oxide feeding device, leads to Cross " the pinkeye feed opening ", in the balanced electrolyte solution being added in aluminium cell molten bath；Meanwhile being produced in electrolytic process Raw hydrocarbon gas, also to be spilt into by being somebody's turn to do " pinkeye feed opening " outside electrolysis molten bath.
(it installs fixing point), it is to be fixedly mounted due to the crust breaking cylinder of now general aluminum cell crust breaking blanking device On aluminium cell, stroke, guide link and the crust-breaking chips design height degree of its crust breaking cylinder are that setting is constant, and aluminium The two of the level of electrolyte solution and aluminium liquid in electrolytic cell, i.e. aluminium cell are horizontal, and mulch shell surface height level (i.e. Thickness), then it is change；The cephalomotor lower dead center of crust breaking hammer can thus be caused, it is impossible to two water in aluminium cell Flat change and change.This structure design of the crust breaker of existing aluminium cell, following lack is produced in electrolytic process Fall into：
When the lower dead center of tup impact operation is relatively low, when inserting deeper in electrolyte liquid layer, its crust-breaking chips can bond electricity Matter liquid is solved, forms tup length bag, (being commonly called as hourglass head)；The crust breaking function so that tup is died, it is impossible to open covering material crust layer is impacted, Form that " pinkeye feed opening " be not smooth, caused by alumina powder loading channel and gas overflow channel blocking.
When tup abrasion is shortened to a certain extent, the lower dead center of tup impact operation is higher, or electrolyte liquid layer mulch Crust layer it is relatively low when, (i.e. apart from tup run lower dead center farther out when), the ballistic motion of its crust-breaking chips may not puncture Mulch crusts layer, can not form " pinkeye feed opening ", the alumina powder loading channel that will also result in and gas overflow channel it is stifled Plug.
Therefore, during existing Aluminum Electrolysis Production, in order to safeguard the normal production of aluminium electroloysis, aluminium electrolysis enterprise will Many metal workers are equipped with, to the crust-breaking chips and " pinkeye feed opening " of aluminium cell, are safeguarded, to ensure " under pinkeye Material mouth " is dredged and shape is regular, realizes the purpose of aluminium cell continuous and steady operation.Its key operation content is：
(1) long bag is bonded, crust-breaking chips is recovered striking impact using the method for drill rod sidepiece impact, cleaning crust-breaking chips Form the function of " pinkeye feed opening ".
(2) method for using additional fillers, safeguards regular " pinkeye feed opening " shape, prevents " pinkeye feed opening ", expands, Cause aluminium cell radiating increase and anode carbon block oxidation.
(3) using the method for drill rod impact, " the pinkeye feed opening " of dredge blockage, the smooth of blanking pinkeye and steam vent is ensured It is logical.
During Aluminum Electrolysis Production, using these above-mentioned methods, to the crust-breaking chips and " pinkeye feed opening " of aluminium electroloysis, Manual work maintenance is carried out, ensures " blanking pinkeye " regular and unimpeded method, has become the normality technique of Aluminum Electrolysis Production, Its presence, not only operating frequency is more, and labor intensity is larger, and working environment is more severe (being in hot operation region), Health hazard to worker is also larger, and has a strong impact on the material balance of aluminium cell and thermally equilibrated stability.
The content of the invention：To overcome existing above-mentioned common problem during existing aluminum electrolysis and defect, mitigate smelting The labor intensity of worker is refined, the unattended of aluminium cell is realized, reduces the artificial interference of aluminium cell, improve aluminium cell Stability, it is the unattended offer technical support of aluminium cell.The present invention propose it is a kind of new, in Aluminum Electrolysis Production process In, electrolytic cell " pinkeye feed opening " is constructed, and ensure its unimpeded new technology operating method.
Its technology path is：On the basis of being improved to the crust-breaking ＆ baiting device of existing aluminium cell so that crust breaking The lower dead center of tup ballistic motion, can be according in aluminium cell molten bath, the height of two elevational changes, i.e. mulch shell surface Change, adjust up and down.I.e. with by controlling crust-breaking chips, the interspersed depth method impacted in electrolyte liquid layer, ensure Crust-breaking chips is not bonded electrolyte length bag, and can 100% breakdown mulch crust layer, formed unimpeded and regular " under pinkeye Material mouth, prevent the generation of tup length bag and " pinkeye feed opening " clogging；Skill is created to stablize the technical matters of aluminium cell Art condition.
A kind of aluminium cell pinkeye feed opening building method, its technical characteristic are：In aluminum electrolysis cell upper part truss structure (16) on, the sidepiece of crust breaking cylinder (1), one screw height adjuster (2) of construction is set, crust breaking cylinder (1) is solid Dingan County is in the lifting attachment means (4) of the height adjuster (2)；During electrolysis production, melted according to aluminium cell Two elevational change in pond, rotates the screw (5) of the height adjuster (2), and adjustment crust breaking cylinder (1) installation is fixed Point and strike tup (11) ballistic motion lower dead center working depth；I.e. when the two level heights rise in aluminium cell, rotation Screw (5) is moved up the lower dead center for hitting tup (11) ballistic motion；When two level heights in aluminium electroloysis reduce When, rotating screw leading screw (5) is moved down the lower dead center of crust-breaking chips (5) ballistic motion；Contacted with control strike tup (5) The method of electrolyte liquid layer (14) depth is inserted into, implements the impact operation to mulch crust face (13), completes " pinkeye blanking Mouthful " construction shaping work, and ensure the realization of its " pinkeye feed opening " unblocked function.
Optimisation technique effect and the origin cause of formation of the present invention are：
(1) due to the controllable adjustment in the lower dead center of crust-breaking chips operation, the machine of its crust-breaking chips breakdown mulch crust layer Rate is up to 100%；
(2) due to the cephalomotor lower dead center of crust breaking hammer, it is inserted into the depth of electrolyte liquid layer and can be controlled in 5cm's or so Scope, hourglass head length bag would not be formed at crust-breaking chips, could be formed with the alumina feeding " blanking pinkeye " of rule, can Ensure that aluminum oxide feed powder unblocked, quantitatively orderly can be added in electrolyte liquid layer, so as to be advantageous to stable electrolyte Alumina concentration in liquid；The generation of electrolytic effect so can be not only reduced, and current efficiency can be improved, reduces ton aluminium Production power consumption.
(3) because crust-breaking chips bonds long bag, " pinkeye feed opening " shape that its impact is formed is then more regular, this Sample can not only reduce the oxidization burning loss of the anode carbon block at blanking pinkeye mouth, reduce anode carbon block and consume only.And it can reduce Heat leakage at blanking pinkeye, the thermal balance stability in aluminum cell hearth molten bath is lifted, improve the electric current effect of aluminium cell Rate.
(4) because the cephalomotor lower dead center of crust breaking hammer carries out height adjustment, it is equivalent to crust breaking cylinder piston piston rod fortune Dynamic stroke can adjust, and so may be such that the stroke of crust breaking cylinder piston rod movement carries out shortening design, by original 600mm Left and right shorten to 450mm or so.(range of decrease is 25% or so) so, can not only reduce the construction cost of manufacture of crust breaking cylinder, And the aggregate supply of air compressor machine gases at high pressure can be reduced, reduce the power consumption of air compressor machine.
(5) because tup is inserted into the controlled depth of electrolyte liquid layer, will subtract in the course of the work at its crust-breaking chips Workload is changed in few mechanically and chemically abrasion of the electrolyte solution to crust-breaking chips, this maintenance that can not only reduce crust-breaking chips, Reduce tup purchases maintenance cost, and can reduce the iron content in aluminium liquid.
(6) because tup is inserted into the controlled depth of electrolyte liquid layer, in the course of the work would not at its crust-breaking chips Form hourglass head length bag；Can exempts the process of cleaning tup hourglass head length bag and regular " fire during electrolysis production The process of material mouth now ", this not only reduces the aluminum electrolysis cell upper part in attended operation to radiate, and is advantageous to the entirety of aluminium cell Thermal balance, and the maintenance workload of operator can be reduced, the labor intensity of worker is reduced, reduces dust and worker is good for The harm of health.
Brief description of the drawings：A kind of aluminium cell pinkeye feed opening building method of the present invention, it is by accompanying drawing and specifically real Statement in applying, then become apparent from.
Fig. 1 are a kind of schematic diagram of aluminium cell pinkeye feed opening building method.
Shown in its figure：1 crust breaking cylinder, 2 screw height adjusters, 3 support frames, 4 lifting attachment means, 5 Screw, 6 guiders, 7 rotating driving devices, 8 cylinder connecting elements, 9 cylinder piston rods, 10 guide links, 11 crust breakings Tup, 12 " pinkeye feed openings ", 13 mulches crust layer, 14 electrolyte liquid layers, 15 aluminium liquid layers, 16 aluminium electroloysis top load-bearing purlins Frame
Embodiment：The unimpeded regular aluminium cell pinkeye feed opening method of one kind of the present invention, is to existing The reformed AHP that the construction of aluminium cell " pinkeye feed opening " is formed and shape maintenance mode is carried out,
Its technical scheme core main points is：Turned to the change that aluminium liquid in aluminium cell molten bath is the level height of electrolyte solution two Foundation, the lower dead center of crust-breaking chips ballistic motion controls high as the ideal of terminal to contact electrolyte solution upper surface all the time On degree, (as shown in Figure 1) forms " pinkeye feed opening " to realize that crust-breaking chips can impact open covering material crust layer, and adhesion It is optimised process state that electrolyte solution, which forms tup length bag,.
Above-mentioned state of the art is realized it is necessary to create necessary technology assembled condition." the pinkeye feed opening " of aluminium cell The realization of above-mentioned state of the art, i.e., the unimpeded regular aluminium cell pinkeye feed opening method of one kind of the present invention, is by aluminium The adjustment of the reformed AHP of electrolytic cell Technical facilities in production crust-breaking ＆ baiting device and process route is realized.As shown in Figure 1.
Sidepiece in crust breaking cylinder (1), newly increase and a upper screw height adjuster (2), the taenidium are set Thick stick height adjuster (2) is by support frame (3), lifting attachment means (4), screw (5), guider (6), rotation Drive device (7) construction forms.
Crust breaking cylinder (1) is fixed in the lifting attachment means (4) of screw height adjuster (2), then will Crust breaking cylinder (1) and screw height adjuster (2) are configured to overall parts, and aluminium electricity is arranged on by support frame (3) Solve in groove top truss principal (16) structure.
After aluminium electroloysis crust-breaking ＆ baiting device carries out above-mentioned transformation, it is possible to it is determined that it is unimpeded to implement one kind of the present invention The technical scheme of regular aluminium cell pinkeye feed opening method.I.e. according to the aluminium liquid layer (15) and electrolyte in aluminium cell molten bath The change of the level height of liquid layer (14) two, with rotating screw leading screw height adjuster (2) helical screw (5), adjustment lifting connects The method of connection device (4) and crust breaking cylinder (1) installation fixing point height, crust breaking of the control installed in cylinder piston rod (9) bottom Tup (11) bottom surface, when reaching ballistic motion bottom dead center position, with the contact distance of electrolyte liquid layer (14) upper surface and Interspersed depth；To realize that crust-breaking chips (11) can impact open the mulch crust layer (13) on electrolyte liquid layer (14) top, shape Into the function of " pinkeye feed opening " (12), and can enough prevents that preventing crust-breaking chips (11) bonds electrolyte solution, shape growth package phenomenon Generation；So that " pinkeye feed opening " (12) that crust-breaking chips impact mulch crust layer is formed are in a unimpeded rule all the time Whole state of the art.
Among normal aluminium cell production process, aluminium liquid layer (15) and electrolyte liquid layer (14) in aluminium cell molten bath The change fluctuation range of two level heights, therefore, can be by crust-breaking chips (11) about 2 centimeters or so (i.e. aluminum yield height) The height of the lower dead center of ballistic motion, it is arranged on and is inserted into electrolyte liquid layer () 4 centimeters or so.It so both may insure to beat The realization of shell hammer (11) impact construction " pinkeye feed opening " (12) function, can prevent crust-breaking chips (11) from bonding electrolyte again Long bag, can also reduce the operating frequency that crust breaking cylinder (1) adjusts its working depth by rotating screw leading screw (2).
A kind of described aluminium cell pinkeye feed opening building method of invention, the rotary operation mode of its helical screw (5), Both it can be carried out, can also be carried out by the way of Mechanical Driven using manually-operated mode, can also will be arranged on spiral Screw (5) rotating driving device (7) on leading screw height adjuster (2), one is connected to the tank control cabinet of aluminium cell Rise, implement automation remote control.

Claims (1)

1. a kind of aluminium cell pinkeye feed opening building method, its technical characteristic are：In aluminum electrolysis cell upper part truss structure (16) On, the sidepiece of crust breaking cylinder (1), one screw height adjuster (2) of construction is set, by the fixed peace of crust breaking cylinder (1) In the lifting attachment means (4) of the height adjuster (2)；During electrolysis production, according in aluminium cell molten bath Two elevational changes, rotate the screw (5) of the height adjuster (2), adjustment crust breaking cylinder (1) installation fixing point and Hit tup (11) ballistic motion lower dead center working depth；I.e. when the two level heights rise in aluminium cell, rotating screw Leading screw (5) is moved up the lower dead center for hitting tup (11) ballistic motion；When two level heights in aluminium electroloysis reduce, rotation Turn screw (5) to be moved down the lower dead center of crust-breaking chips (5) ballistic motion；With control strike tup (5) contact insertion To the method for electrolyte liquid layer (14) depth, implement the impact operation to mulch crust face (13), complete " pinkeye feed opening " Construction shaping work, and ensure the realization of its " pinkeye feed opening " unblocked function.
CN201710654066.6A 2016-08-05 2017-08-02 A kind of aluminium cell pinkeye feed opening building method Withdrawn CN107366007A (en)

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CN2016106572075 2016-08-05
CN201610657207 2016-08-05

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CN201710027479.1A Active CN106835199B (en) 2016-08-05 2017-01-06 Height adjusting device for crust breaking cylinder
CN201710027480.4A Pending CN106591886A (en) 2016-08-05 2017-01-06 Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath
CN201710292157.XA Active CN107130259B (en) 2016-08-05 2017-04-22 Aluminum oxide feeding device for aluminum electrolysis cell
CN201710292159.9A Active CN106947981B (en) 2016-08-05 2017-04-22 Alumina crust breaking and feeding device
CN201710440540.5A Active CN107687006B (en) 2016-08-05 2017-06-04 Height adjusting mechanism for screw rod of crust breaking cylinder
CN201710440365.XA Active CN107687005B (en) 2016-08-05 2017-06-04 Novel aluminum cell crust breaking and feeding device
CN201710599368.8A Pending CN107447234A (en) 2016-08-05 2017-07-05 A kind of crust breaking cylinder of adjustable installation fixing point height
CN201710599367.3A Pending CN107326399A (en) 2016-08-05 2017-07-05 A kind of crust breaking cylinder screw height adjuster
CN201710654066.6A Withdrawn CN107366007A (en) 2016-08-05 2017-08-02 A kind of aluminium cell pinkeye feed opening building method
CN201710654067.0A Withdrawn CN107236971A (en) 2016-08-05 2017-08-02 Crust breaking cylinder screw height adjuster
CN201720959255.XU Expired - Fee Related CN207244019U (en) 2016-08-05 2017-08-02 Sidepiece is provided with the crust breaking cylinder of bolt connecting hole
CN201720959254.5U Expired - Fee Related CN207244018U (en) 2016-08-05 2017-08-02 Crust breaking cylinder screw height adjuster
CN201710654069.XA Withdrawn CN107268036A (en) 2016-08-05 2017-08-02 Sidepiece is provided with the crust breaking cylinder of bolt connecting hole
CN201710654068.5A Withdrawn CN107227467A (en) 2016-08-05 2017-08-02 Crust breaking cylinder sidepiece lifting attachment means
CN201720959253.0U Expired - Fee Related CN207552468U (en) 2016-08-05 2017-08-02 Crust breaking cylinder side is lifted attachment device

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CN201710027479.1A Active CN106835199B (en) 2016-08-05 2017-01-06 Height adjusting device for crust breaking cylinder
CN201710027480.4A Pending CN106591886A (en) 2016-08-05 2017-01-06 Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath
CN201710292157.XA Active CN107130259B (en) 2016-08-05 2017-04-22 Aluminum oxide feeding device for aluminum electrolysis cell
CN201710292159.9A Active CN106947981B (en) 2016-08-05 2017-04-22 Alumina crust breaking and feeding device
CN201710440540.5A Active CN107687006B (en) 2016-08-05 2017-06-04 Height adjusting mechanism for screw rod of crust breaking cylinder
CN201710440365.XA Active CN107687005B (en) 2016-08-05 2017-06-04 Novel aluminum cell crust breaking and feeding device
CN201710599368.8A Pending CN107447234A (en) 2016-08-05 2017-07-05 A kind of crust breaking cylinder of adjustable installation fixing point height
CN201710599367.3A Pending CN107326399A (en) 2016-08-05 2017-07-05 A kind of crust breaking cylinder screw height adjuster

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CN201710654067.0A Withdrawn CN107236971A (en) 2016-08-05 2017-08-02 Crust breaking cylinder screw height adjuster
CN201720959255.XU Expired - Fee Related CN207244019U (en) 2016-08-05 2017-08-02 Sidepiece is provided with the crust breaking cylinder of bolt connecting hole
CN201720959254.5U Expired - Fee Related CN207244018U (en) 2016-08-05 2017-08-02 Crust breaking cylinder screw height adjuster
CN201710654069.XA Withdrawn CN107268036A (en) 2016-08-05 2017-08-02 Sidepiece is provided with the crust breaking cylinder of bolt connecting hole
CN201710654068.5A Withdrawn CN107227467A (en) 2016-08-05 2017-08-02 Crust breaking cylinder sidepiece lifting attachment means
CN201720959253.0U Expired - Fee Related CN207552468U (en) 2016-08-05 2017-08-02 Crust breaking cylinder side is lifted attachment device

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CN107447234A (en) 2017-12-08
CN107687006B (en) 2021-10-22
CN106591886A (en) 2017-04-26
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CN207244018U (en) 2018-04-17
CN106947981A (en) 2017-07-14
CN107326399A (en) 2017-11-07
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CN207244019U (en) 2018-04-17
CN107268036A (en) 2017-10-20
CN207552468U (en) 2018-06-29
CN107687006A (en) 2018-02-13
CN106835199B (en) 2021-08-20
CN107236971A (en) 2017-10-10
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CN107227467A (en) 2017-10-03
CN107130259A (en) 2017-09-05

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Application publication date: 20171121