CN201406281Y - Multifunctional horizontal slag remover with crown block grab bucket for aluminium electrolysis - Google Patents

Abstract

The utility model discloses a multifunctional horizontal slag remover with a crown block grab bucket for aluminium electrolysis, which comprises an electric hoist, a grab bucket, an air cylinder, a pole support and a support saddle. The support saddle is installed on the pole support which is in a double-sleeve structure; the air cylinder which is connected with the grab bucket through a connecting rod is arranged in the inner sleeve of the pole support; and the top part of the inner sleeve of the pole support is connected with the electric hoist through a fastening piece and can slide up anddown along the inside of the outer sleeve of the pole support under the drive of the electric hoist. The multifunctional horizontal slag remover is characterized in that the electromotor of the electric hoist is a special frequency variable electromotor; a transducer controls the electromotor of the electric hoist for stepless speed regulation; an absolute encoder is additionally installed on theelectromotor of the electric hoist; the absolute encoder is electrically connected with the transducer through a programmable controller; and the programmable controller controls the up-and-down running journey of the slag remover.

Description

The aluminum electrolysis multifunctional overhead crane horizontal device for dragging dregs of grabbing bucket

Technical field:

The utility model relates to a kind of residue cleaning plant of aluminium electroloysis industry, refers in particular to a kind of device for dragging dregs of aluminum electrolysis multifunctional machine group, is used for the electrolysis residue in the grab bucket level cleaning electrolytic bath.

Background technology:

Present domestic aluminium industry development is advanced by leaps and bounds like the mushrooms after rain, long-established enterprise also constantly transforms and enhances production capacities, the particularly appearance of large pre-baked cell, requirement to the aluminum electrolysis multifunctional machine group is also more and more higher, it is primary productive force that equipment is all looked advanced by each enterprise, as the primary advantage of enterprise development competition.The aluminum electrolysis multifunctional machine group is special use, the key equipment of prebaked anode Aluminium Electrolysis.It can finish the following technological operation of prebaked cell for aluminum-reduction: 1. crust breaking and capping oxidation aluminium, 2. change anode, 3. go out aluminium, 4. the service hoisting anode bus, 5. installing and during the maintenance electrolytic bath, but handling pot superstructure and bottom pot shell and other fragmentary handling, 6. residue cleaning plant.The aluminum electrolysis multifunctional machine group mainly by cart, instrument dolly, driver's cab or remote control, crust breaker, more changing anode device, blanking system, go out the aluminium dolly, fixedly cucurbit device, device for dragging dregs, electric control system, hydraulic efficiency pressure system and pneumatic system are formed.Wherein device for dragging dregs is mainly used in the electrolysis residue in the electrolytic bath in the cleaning electrolytic process.Device for dragging dregs is at present domestic two kinds: a kind of by electric block control device for dragging dregs lifting and cylinder control grab bucket switching; Another kind of by oil cylinder control device for dragging dregs lifting and cylinder control grab bucket switching.The former since the device for dragging dregs lifting for flexibly connecting, even under the malfunctioning situation of lifting lower limit, grab bucket can not destroy electrolytic bath bottom yet, so application is wider.And the lifting of latter's device for dragging dregs is rigid connection, and under the malfunctioning situation of lifting lower limit, the grab bucket meeting destroys the electrolytic bath bottom, so use wideless.For electric block control device for dragging dregs, because in the existing device for dragging dregs, the running orbit of grabbing edge in the grab bucket switching process is a circular arc, if grab bucket is being opened under the state, drop to highly do not control in the electrolytic bath good, in the grab bucket closing course, the grabbing edge and will destroy of grab bucket to electrolytic bath bottom.Therefore necessary this is improved.

The utility model content:

The purpose of this utility model is at the existing device for dragging dregs deficiency that meeting destroys electrolytic bath in the process that grab bucket is grasped, provide a kind of later-model aluminum electrolysis multifunctional overhead crane grab bucket horizontal device for dragging dregs, this device for dragging dregs not only has better stability and reliability, can satisfy grab bucket in grasping the residue process, the running orbit of grabbing edge that guarantees grab bucket becomes present level of approximation by original circular arc, make grab bucket more thorough to the cleaning of electrolytic bath residue, improve the operating efficiency of device for dragging dregs, reduce the effect in the electrolytic process, reduce the energy consumption of unit electrolytic aluminium.

The technical solution of the utility model is: a kind of aluminum electrolysis multifunctional overhead crane horizontal device for dragging dregs of grabbing bucket, comprise electric block, grab bucket, cylinder, pillar and bearing, bearing is installed on the pillar, pillar is a double-sleeve structure, in the inner sleeve of pillar, cylinder is housed, cylinder links to each other with grab bucket by connecting rod, and the top of the inner sleeve of pillar links to each other with electric block by fastener, and can slide up and down in the outer sleeve inside of the drive lower edge of electric block pillar; It is characterized in that: described electric block electrical motor is the frequency conversion definite-purpose motor, carries out infinite speed variation by Frequency Converter Control electric block electrical motor, and add absolute value encoder on the electric block electrical motor; Described absolute value encoder is except the real time execution speed to electrical motor detects, also the operation stroke of device for dragging dregs is measured, like this quantification that distance is counted on the vertical direction of grabbing edge and bottom of electrolytic tank that can grab bucket in lifting process to the grab bucket of device for dragging dregs; Zhua Dou switching simultaneously still adopts cylinder to drive, but be provided with the backguy coder at the position that connecting rod links to each other with cylinder, the horizontal device for dragging dregs of aluminum electrolysis multifunctional overhead crane grab bucket adopts the backguy coder that the reduction stroke of cylinder is measured in the reduction direction of cylinder, can measure (because grab bucket need be in the electrolytic solution work up to 800-900 ℃ the switching angle of grab bucket indirectly like this, directly measure inconvenient), because what grab bucket opened and closed angle and grab bucket grabs that the displacement in vertical direction has fixing functional relation in the edge closing course, grab bucket grabs the quantification that also can count in the displacement of vertical direction in the edge closing course like this, because the control center of multifunctional electrolytic machine group adopts Programmable Logic Controller, all mathematical operations can be finished at Programmable Logic Controller, for the running orbit of grabbing edge that guarantees to grab bucket is the level of approximation state, grabbing in the edge closing course in vertical direction of grab bucket raises or reduces a bit, mathematical function computing through Programmable Logic Controller, because the arithmetic speed of Programmable Logic Controller all is a Millisecond, can be fast automatic driving Frequency Converter Control electric block reduce or raise and drag for slag a bit, so just can reach the interior residue of level extracting electrolytic bath of grab bucket.

Beneficial effect: grab bucket of the present utility model horizontal device for dragging dregs has been avoided grab bucket injury to electrolytic bath when grasping residue, and the cleaning to residue is more thorough, improved the operating efficiency of equipment, cleaning that the more important thing is residue is more thorough, reduced the occurrence frequency of effect in the electrolytic process, reduce the energy consumption of unit electrolytic aluminium, reached energy-conservation effect; And whole process is finished by the Programmable Logic Controller automatic guidance, and reliability and stability are higher.

Description of drawings:

Fig. 1 is the structural representation of the horizontal device for dragging dregs of grab bucket;

Fig. 2 is the grab bucket and the cylinder part separation structure scheme drawing of the horizontal device for dragging dregs of grab bucket;

Fig. 3 is the electrical principle block diagram of the horizontal device for dragging dregs of grab bucket.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

By attached Fig. 1 and 2 as can be seen, the utility model is the horizontal device for dragging dregs of a kind of aluminum electrolysis multifunctional overhead crane grab bucket, comprise electric block 1, grab bucket 2, cylinder 3, pillar 4 and bearing 5, bearing 5 is installed on the pillar 4, pillar 4 is a double-sleeve structure, in the inner sleeve 6 of pillar 4, cylinder 3 is housed, cylinder 3 links to each other with grab bucket 2 by connecting rod 7, the top of the inner sleeve 6 of pillar 4 links to each other with electric block 1 by fastener, and can slide up and down in outer sleeve 8 inside of the drive lower edge of electric block 1 pillar 4; It is characterized in that: the electrical motor 9 of described electric block 1 is the frequency conversion definite-purpose motor, and the electrical motor of electric block 1 is motor with stepless speed regulation, and is added absolute value encoder 11 on the electrical motor of electric block 1 by frequency converter 10 controls; Described absolute value encoder 11 is except the real time execution speed to electrical motor detects, also the operation stroke of device for dragging dregs is measured, like this quantification that distance is counted on the vertical direction of grabbing edge and bottom of electrolytic tank that can grab bucket in lifting process to the grab bucket of device for dragging dregs.By accompanying drawing 3 as can be seen, absolute value encoder 11 is electrically connected with Programmable Logic Controller 12 by frequency converter, and is controlled by the stroke of operation up and down of 12 pairs of device for dragging dregs of Programmable Logic Controller; 2 the switching of grabbing bucket simultaneously still adopts cylinder 3 to drive, but be provided with backguy coder 13 (seeing accompanying drawing 3) at the position that connecting rod 7 links to each other with cylinder 2, the horizontal device for dragging dregs of aluminum electrolysis multifunctional overhead crane grab bucket adopts the reduction stroke of 13 pairs of cylinders 2 of backguy coder to measure in the reduction direction of cylinder 2, can measure (because grab bucket need be in the electrolytic solution work up to 800-900 ℃ the switching angle of grab bucket indirectly like this, directly measure inconvenient), because what grab bucket opened and closed angle and grab bucket grabs that the displacement in vertical direction has fixing functional relation in the edge closing course, that grabs bucket like this grabs the quantification that also can count in the displacement of vertical direction in the edge closing course.Because the control center of multifunctional electrolytic machine group adopts Programmable Logic Controller, all mathematical operations can be finished at Programmable Logic Controller, for the running orbit of grabbing edge that guarantees to grab bucket is the level of approximation state, grabbing in the edge closing course in vertical direction of grab bucket raises or reduces a bit, mathematical function computing through Programmable Logic Controller, because the arithmetic speed of Programmable Logic Controller all is a Millisecond, can be fast automatic driving Frequency Converter Control electric block reduce or raise and drag for slag a bit, so just can reach the interior residue of level extracting electrolytic bath of grab bucket.

Claims (2)

1, a kind of aluminum electrolysis multifunctional overhead crane horizontal device for dragging dregs of grabbing bucket, comprise electric block, grab bucket, cylinder, pillar and bearing, bearing is installed on the pillar, pillar is a double-sleeve structure, in the inner sleeve of pillar, cylinder is housed, cylinder links to each other with grab bucket by connecting rod, and the top of the inner sleeve of pillar links to each other with electric block by fastener, and can slide up and down in the outer sleeve inside of the drive lower edge of electric block pillar; It is characterized in that: described electric block electrical motor is the frequency conversion definite-purpose motor, carries out infinite speed variation by Frequency Converter Control electric block electrical motor, and add absolute value encoder on the electric block electrical motor; Absolute value encoder is electrically connected with Programmable Logic Controller by frequency converter, and by Programmable Logic Controller the stroke of operation up and down of device for dragging dregs is controlled.

2, the aluminum electrolysis multifunctional overhead crane as claimed in claim 1 horizontal device for dragging dregs of grabbing bucket is characterized in that: be provided with the backguy coder at the position that connecting rod links to each other with cylinder.

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