CN201228288Y

CN201228288Y - Novel crust breaker for aluminum cell

Info

Publication number: CN201228288Y
Application number: CNU2008201071451U
Authority: CN
Inventors: 高伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-07
Filing date: 2008-04-07
Publication date: 2009-04-29
Anticipated expiration: 2018-04-07

Abstract

The utility model relates to a crust breaking device for an aluminum electrolytic tank. Due to the electrical conductivity that the voltage values of a guide connection rod and a hammer can change with the electrolyte voltage, the crust breaking device can prevent the possibility that an electrolyte crust can not be broken through by the breaking hammer and can prevent the possibility that the breaking hammer is continuously inserted downwards after breaking through the electrolyte crust by converting an instantly changed voltage into a control signal and changing the moving direction of the breaking hammer and the work stroke of a piston rod in time after the breaking hammer breaks through the electrolyte crust and when the hammer contacts with the electrolyte. Accordingly, relatively reliable process conditions for accurately adding aluminum oxide in the electrolyte at fixed time and fixed quantity are created.

Description

Novel crust breaker for aluminum electrolytic cell

Technical field: the utility model is a kind of aluminum electrolyzing cell used electrolyte crust crust breaker.

Background technology: existing general pre-calcining electrolytic cell crust breaker, form by crust breaking cylinder, guide link and crust-breaking chips body plan, move up and down by the solenoid operated directional valve control cylinder inner carrier body of rod, drive the strike tup by guide link, break up by ionogen and electrolyte crust that aluminum oxide is formed, form an alumina blanking passage, so that accurate quantitative interpolation aluminum oxide is to the ionogen of electrolyzer, participate in the focus chemical reaction, generate electrolytic aluminum.

But, existing general pre-calcining electrolytic cell crust breaker, the stroke that crust-breaking chips moves up and down, often by cylinder piston rod whole total travel determined, be that electrolyte crust or high or low, crust-breaking chips or length all be can not determine its rational crust breaking degree of depth and stroke, so just be easy to generate following drawback: 1, under the situation of equal crust height (thickness), the short tup in wearing and tearing backs is then beaten saturating electrolyte crust hole, and alumina material can't be attached in the ionogen in the electrolyzer at regular time and quantity accurately; 2 and the new long tup of changing, then owing to wear that to beat the degree of depth longer, even opened the electrolyte crust hole, it is descending that tup still continues, and so not only aggravated the tup wearing and tearing, but also make the long bag of tup easily, and ionogen is sticked on the tup; 3, tup not only needs manually in time to clear up after adhering to the long bag of ionogen, increased labour intensity, and strengthened tup weight, increased the backhaul lifting load of cylinder, easily cause tup to go up slowly, also influence aluminum oxide and acquire in the ionogen,, thereby influence the stable equilibrium of the various electrolytic process parameters in the electrolytic process because aluminum oxide can not join in the ionogen at regular time and quantity accurately.

The utility model content: the purpose of this utility model is to overcome above-mentioned prior art, and to hit the working stroke of tup be exactly the changeless shortcoming of the working stroke of cylinder, provide a kind of and novel can determine the crust-breaking chips stroke, broken up the novel aluminum cell crust breaker for aluminum electrolytic cell that electrolyte crust is a working stroke to hit tup according to electrolytical height and thickness in the aluminium cell.

The construction features of novel crust breaker for aluminum electrolytic cell are: on the conducting metal position lead wiring point that guide link links to each other with crust-breaking chips, install a voltage sensor, make and hit that tup is descending to be got through in the electrolyzer behind the electrolyte crust hole, moment is transformed into control signal with electrolytical voltage signal in the groove, utilize this voltage control signal, come the pump loop line and the direction of action of electromagnetic direction valve of stroke and direction of control cylinder piston rod, thereby make crust-breaking chips after getting through the electrolyte crust hole, stop descending strike stroke at once, return lift stroke rapidly.

To adhere to ionogen on the tup in order preventing to hit, hitting tup outside surface backward stroke position, to install an ionogen material scraping plate or scraper sleeve, scraper sleeve or material scraping plate can be fixed on the upper part of the electrolytic cell steel construction.

The utility model has the advantages that crust breaker for aluminum electrolytic cell utilization strike tup is after finishing puncture electrolyte crust hole, tup and electrolyte bath produce when contacting, because the conductivity that the magnitude of voltage of guide link and tup can change with electrolyte bath voltage, the voltage transition of this instantaneous variation is become control signal, in time change the direction of motion of strike tup and the working stroke of piston rod, both prevented that the strike tup from beating the saturating incrustive possibility of electrolysis, though after preventing to hit the tup look again and beating electrolysis crust hole, still continue the possibility of inserting downwards.Created processing condition relatively reliably thereby in ionogen, add aluminum oxide, guaranteed the stable equilibrium of aluminum electrolysis process parameter for accurate timing is quantitative.

Description of drawings: Fig. 1 is the utility model novel aluminum cell crust breaker for aluminum electrolytic cell synoptic diagram;

Wherein shown in the figure: 1, electromagnetic direction valve; 2, voltage sensor; 3, crust breaking cylinder; 4, piston rod; 5, voltage lead wiring point; 6, guide link; 7, crust-breaking chips 8, scraper sleeve

Embodiment: the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of novel novel aluminum cell crust breaker for aluminum electrolytic cell that can determine the crust-breaking chips stroke according to electrolytical height and thickness in the aluminium cell is provided.

The utility model crust breaker for aluminum electrolytic cell specific embodiments is: the conducting metal site voltage lead wiring point that links to each other with crust-breaking chips (7) in original design insulating crust breaker for aluminum electrolytic cell cylinder (3) piston rod (4) guide link (6), install a voltage sensor (2), make and hit that tup (7) is descending to be got through in the electrolyzer behind the electrolyte crust hole, after tup (7) bottom contacted with electrolyte bath moment with the voltage change signal in the electrolyzer, give on the voltage relay transmitter (2) by voltage lead wiring point (5) conduction that is installed on piston rod (4) or the guide link (6), with voltage signal by transmitter or pass through tank control cabinet, be transformed into control signal, be transmitted on the electromagnetic direction valve (1) that control cylinder piston rod (4) pumps, thereby make crust-breaking chips (7) after getting through electrolyte crust, stop descending strike stroke at once, return lift stroke rapidly.

Adhere to ionogen on the tup in order to prevent to hit, guarantee the realization of its performance, can install an ionogen material scraping plate (8) or scraper sleeve (8) at strike tup (7) outside surface backward stroke position, scraper sleeve (8) or material scraping plate (8) can be fixed on the Steel Superstructure.If adhered to ionogen on the tup, reactive force in the time of can utilizing material scraping plate (8) or scraper sleeve (8) to tup (7) return movement, the ionogen that will stick on the tup (7) is wiped off, to guarantee the clean of tup (7) outside surface, thereby ensure the crust breaking performance of tup (7) and the realization of conductivity.

The utilization of the utility model crust breaker for aluminum electrolytic cell is hit tup (7) after finishing puncture electrolyte crust hole, tup (7) and electrolyte bath produce when contacting, because the conductivity that the magnitude of voltage of guide link (6) and tup (7) can change with electrolyte bath voltage, the voltage transition of this instantaneous variation is become control signal, in time change the direction of motion of strike tup (7) and the working stroke of piston rod (4), both prevented that strike tup (7) from beating the saturating incrustive possibility of electrolysis, and prevented from again to hit and still continue the possibility of insertion downwards after tup (7) is beaten electrolysis crust hole.Thereby in ionogen, add aluminum oxide for accurate timing is quantitative and created processing condition relatively reliably.

Claims

1, the novel electrolytic bath crust breaker is by electromagnetic direction valve (1), voltage sensor (2); Crust breaking cylinder (3), piston rod (4), voltage lead wiring point (5), guide link (6), crust-breaking chips (7), scraper sleeve (8) structure form, it is characterized in that on guide link (6) and conducting metal position lead wiring point (5) that crust-breaking chips (7) links to each other, installing an electrolyte voltage transmitter (2).

2, novel electrolytic bath crust breaker according to claim 1 is characterized in that: install an ionogen material scraping plate (8) or scraper sleeve (8) at strike tup (7) outside surface backward stroke position, material scraping plate (8) or scraper sleeve (8) are fixed on the upper part of the electrolytic cell steel construction.