On-line detection device for electrolyte liquid level height of aluminum electrolysis cell

Abstract

The utility model relates to an aluminum electrolysis cell electrolyte liquid level height on-line detection device which comprises a support assembly installed on an electrolysis cell, a vertical air cylinder is arranged in the support assembly, the top of the cylinder bottom of the air cylinder is connected with an installation seat, an encoder is fixed on the installation seat, and the encoder is connected with a motor. The free end of a piston rod of the air cylinder penetrates through the bottom of the support assembly and is connected with a detection rod, the free end of the detection rod is provided with a temperature sensor, and the detection rod and the encoder are connected through a tightened steel wire pull rope. The method is suitable for industrial production, and has very high practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of metallurgical industry equipment, and particularly relates to an electrolyte liquid level height on-line detection device of aluminium electrolytic cell. BACKGROUND

[0002] In the existing Chinese patent database, a patent with the name of an aluminium electrolytic cell melt phase interface height and furnace side thickness detection tool is disclosed, and the application number is CN206736372U, an aluminium electrolytic cell melt phase interface height and furnace side thickness detection tool, including upper limit, lifting motor, rack, lifting sliding block, servo motor, measuring touch rod, lower limit, platform trolley, measuring electrode, measuring support plate. The lifting motor is coaxially connected on a horizontal line through the main shaft coupling and the lifting sliding block, the measuring electrode is fixed on the support plate through punching, the servo motor is coaxially vertically connected with the measuring touch rod through the coupling, and can be moved at different positions under the movement of the platform trolley;By passing rated current to both ends of the measuring electrode, the change of different phase interface voltage is detected to reflect the height of the phase interface;The furnace side thickness is calculated by the change of the angular displacement of the measuring touch rod by using trigonometric function. The utility model can accurately distinguish the demarcation of air and electrolyte, the transition layer and demarcation of electrolyte and aluminium liquid, the demarcation of aluminium liquid and furnace bottom precipitation and the furnace side thickness.

[0003] In the aluminium-magnesium electrolytic industry, the electrolyte liquid level height in the aluminium electrolytic cell is still measured manually. The patent device disclosed in the present application is installed on the electrolytic cell and can measure the height of the electrolyte liquid level in the electrolytic cell on line, thereby providing the immersion depth information for the subsequent alumina material immersion type continuous feeding device. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of how to measure the height of the electrolyte liquid level in the electrolytic cell, and provides an electrolyte liquid level height on-line detection device of aluminium electrolytic cell to improve the shortcomings.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0006] An electrolyte liquid level height on-line detection device of aluminium electrolytic cell, comprising a support assembly installed on the electrolytic cell, a vertical air cylinder is arranged in the support assembly, a mounting seat is connected to the top of the cylinder bottom of the air cylinder, an encoder is fixed on the mounting seat, the free end of the piston rod of the air cylinder penetrates through the bottom of the support assembly and is connected with a detection rod, a temperature sensor is arranged at the free end of the detection rod, and the detection rod and the encoder are connected through a tight steel wire pull rope.

[0007] As a preferred scheme, a clamping seat is arranged between the piston rod of the air cylinder and the detection rod, the clamping seat comprises an upper plate connected with the piston rod of the air cylinder, a side plate is integrally welded on the lower surface edge of the upper plate, an upper clamping plate and a lower clamping plate are vertically and spacedly arranged on the lower part of the side plate, clamping grooves are formed in the side surfaces of the upper clamping plate and the lower clamping plate, the detection rod is clamped in the clamping grooves, a vertical groove is formed in the outer circumferential surface of the upper part of the detection rod, the upper top surface of the groove is overlapped on the upper surface of the upper clamping plate, the lower bottom surface of the groove is abutted on the lower surface of the lower clamping plate, the side plate is rotationally connected with an adjusting screw rod, a pressing plate is rotationally connected on the adjusting screw rod, and the pressing plate is abutted on the outer surface of the detection rod.

[0008] As a preferred scheme, the upper end of the detection rod is connected with a junction box, a threading hose is connected on the side surface of the junction box, and the other end of the threading hose is connected with the outer surface of the support assembly.

[0009] As a preferred scheme, a guide sleeve is fixedly connected on the bottom of the support assembly, a guide shaft is slidably inserted in the guide sleeve, and the lower end of the guide shaft is connected with the upper plate of the clamping seat.

[0010] As a preferred scheme, the support assembly comprises a mounting plate fixed on the electrolytic cell and a bottom plate for mounting the air cylinder, and the mounting plate and the bottom plate are surrounded by a surrounding plate to form an open-top box-shaped structure.

[0011] Compared with the prior art, the air cylinder, the clamping seat and the detection rod are cooperatively arranged, the electrolyte liquid level can be measured online, information for subsequent processes can be obtained, the device is suitable for industrial production and has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model.

[0013] Figure 2 It is a structural schematic view of the clamping seat in the utility model.

[0014] Figure 3 It is Figure 1 It is a local enlarged view of A in the utility model.

[0015] Figure 4 It is a use schematic view of the utility model in actual application.

[0016] In the figure: 1 bracket assembly, 101 mounting plate, 102 bottom plate, 103 enclosure, 2 cylinder, 3 mounting seat, 4 encoder, 5 detection rod, 501 groove, 6 steel wire pull rope, 7 clamping seat, 701 upper plate, 702 side plate, 703 upper clamping plate, 704 lower clamping plate, 705 clamping groove, 8 adjusting screw, 9 pressing plate, 10 junction box, 11 threading hose, 12 guide sleeve, 13 guide shaft. DETAILED DESCRIPTION

[0017] The technical scheme of the present application will be further described in conjunction with the drawings and examples.

[0018] As shown in the figure, it is an aluminum electrolytic cell electrolyte liquid level on-line detection device, including the mounting plate 101 fixed on the electrolytic cell and the bottom plate 102 for mounting the cylinder 2, the mounting plate 101 and the bottom plate 102 are enclosed by the enclosure 103 to form an open-top box shape. Figures 1-3 As shown in the figure, it is an aluminum electrolytic cell electrolyte liquid level on-line detection device, including the mounting plate 101 fixed on the electrolytic cell and the bottom plate 102 for mounting the cylinder 2, the mounting plate 101 and the bottom plate 102 are enclosed by the enclosure 103 to form an open-top box shape.

[0019] The bracket assembly 1 includes a mounting plate 101 fixed on the electrolytic cell and a bottom plate 102 for mounting the cylinder 2, and the mounting plate 101 and the bottom plate 102 are enclosed by the enclosure 103 to form an open-top box shape.

[0020] As shown in the figure, it is an aluminum electrolytic cell electrolyte liquid level on-line detection device, including the mounting plate 101 fixed on the electrolytic cell and the bottom plate 102 for mounting the cylinder 2, the mounting plate 101 and the bottom plate 102 are enclosed by the enclosure 103 to form an open-top box shape. Figure 4As shown, in working time, the electrolyte layer liquid surface punching operation is carried out by the aluminum water shell breaking mode in the prior art, in installation time, the whole device is installed in a certain angle with the vertical shell breaking rod, it is guaranteed that in the process of the detection rod 5 descending, the electrolyte layer liquid surface after shell breaking can be touched, through the working of the driving cylinder 2, the detection rod 5 is driven by the piston rod of the cylinder 2 to move obliquely downwards, when the free end of the detection rod 5 with the temperature sensor touches the electrolyte liquid surface, the temperature instantaneously rises, the encoder 4 can automatically record the position pulse number of the detection rod 5 descending when the temperature instantaneously rises, so that the electrolyte liquid surface height H is solved by calculation, it is convenient for the depth adjustment of the subsequent blanking end head immersed in the electrolyte layer solution according to the change of the electrolyte liquid surface height H.

[0021] The utility model is not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some replacement and deformation to some technical features according to the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. An online detection device for electrolyte level in an aluminum electrolytic cell, characterized in that: The device includes a support assembly (1) mounted on an electrolytic cell. A vertical cylinder (2) is installed inside the support assembly (1). A mounting base (3) is connected to the top of the cylinder bottom of the cylinder (2). An encoder (4) is fixed on the mounting base (3). The free end of the piston rod of the cylinder (2) passes through the bottom of the support assembly (1) and is connected to a detection rod (5). A temperature sensor is provided at the free end of the detection rod (5). The detection rod (5) and the encoder (4) are connected by a taut steel wire rope (6).

2. The online detection device for electrolyte level in an aluminum electrolytic cell according to claim 1, characterized in that: A clamping seat (7) is provided between the piston rod of the cylinder (2) and the detection rod (5). The clamping seat (7) includes an upper plate (701) connected to the piston rod of the cylinder (2). A side plate (702) is integrally welded to the lower edge of the upper plate (701). An upper clamping plate (703) and a lower clamping plate (704) are vertically spaced at the lower part of the side plate (702). A clamping groove (705) is provided on the side of both the upper clamping plate (703) and the lower clamping plate (704). 5) The detection rod (5) is internally clamped. A vertical groove (501) is provided on the upper outer circumference of the detection rod (5). The upper top surface of the groove (501) overlaps the upper surface of the upper clamping plate (703). The lower bottom surface of the groove (501) abuts against the lower surface of the lower clamping plate (704). The side plate (702) is rotatably connected to an adjusting screw (8). A pressure plate (9) is screwed onto the adjusting screw (8). The pressure plate (9) abuts against the outer surface of the detection rod (5).

3. The online detection device for electrolyte level in an aluminum electrolytic cell according to claim 2, characterized in that: The upper end of the detection rod (5) is connected to a junction box (10), and the side of the junction box (10) is connected to a wire conduit (11). The other end of the wire conduit (11) is connected to the outer surface of the bracket assembly (1).

4. The online detection device for electrolyte level in an aluminum electrolytic cell according to claim 3, characterized in that: The bottom of the bracket assembly (1) is fixedly connected to a guide sleeve (12), and a guide shaft (13) is slidably inserted inside the guide sleeve (12). The lower end of the guide shaft (13) is connected to the upper plate (701) of the clamping seat (7).

5. An online detection device for electrolyte level in an aluminum electrolytic cell according to any one of claims 1-4, characterized in that: The bracket assembly (1) includes a mounting plate (101) fixed on the electrolytic cell and a base plate (102) for mounting the cylinder (2). The mounting plate (101) and the base plate (102) are enclosed by a surrounding plate (103) to form a box-shaped structure with an open top.

Images