JP3105093B2 - Anode plate deposit remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing deposits on an anode plate at a required time for removing and depositing deposits deposited on the surface of the anode plate in the course of electrolytic smelting or the like. It is.

[0002]

2. Description of the Related Art Conventionally, in electrolytic smelting, a crust mainly composed of manganese dioxide adhered to an anode has to be periodically removed in order to avoid an increase in unit cell voltage and power loss. The removal method for this purpose is to pass the anode plate between the rotating brushes, rub the anode plate surface with brush bristles to peel off the deposits, or use an air hammer or electric hammer to strike the anode plate surface to remove the deposits. A method of removing adhering substances by scraping the surface of the anode plate with a scraper (see, for example, Japanese Patent Publication No. 51-45529), distorting the anode plate itself, and distorting the adhering substances by surface deformation due to the deformation. There is known a method of peeling off. Among them, a brush is generally used.

[0003]

However, in the case of the above-described brush system, if the material of the brush is incorrectly selected, there is a possibility that the anode plate or the brush itself may be worn or damaged, and the brush may be in contact with the brush. It is difficult to remove the deposits and the strong deposits where they do not. Further, in the case of using a hammer ring or a scraper, the anode plate may be significantly damaged due to the specificity of the mechanism. Furthermore, when the anode plate itself is bent to remove deposits, the durability of the anode plate is impaired due to repeated deformation. In addition, the anode plate always has some deformation, and when removing adhered substances,
It is difficult to accurately position the anode plate at the required position.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to reliably remove deposits even if the anode plate is slightly deformed or displaced without deforming or damaging the anode plate. At the same time, it is an object of the present invention to provide an anode plate adhering substance removing apparatus which is configured to be able to be used repeatedly by local repair such as replacement of parts by avoiding wear and damage on the apparatus side.

[0005]

Therefore, in the present invention,
A plurality of rotary drive shafts arranged horizontally in parallel, a mounting flange mounted in parallel with the rotary drive shaft in a longitudinal direction thereof, and the mounting flange positioned parallel to and around the rotary drive shaft; And a number of wear-resistant soft elastic bodies pivotally supported in a state of being arranged in the longitudinal direction with respect to the pivot shaft, and the rotary drive shaft is adjacent to the pivot shaft. Is rotated in the opposite direction, and the anode plate is moved up and down at a place where the rotation regions of the respective wear-resistant soft elastic bodies overlap, and the soft elastic body is brought to the surface of the anode plate by centrifugal force applied thereto. And the adhering material is peeled off by an impact force, and a scraping action is performed at the contact point of the soft elastic body and / or the elevating operation of the anode plate to remove the adhering material on the surface of the anode plate. .

[0006]

The function of the soft elastic body causes the anode plate to undergo an adhering substance peeling action to such an extent that it is not damaged by impact, and to rotate the rotary drive shaft and / or raise and lower the anode plate. And is subjected to a scraping action by the soft elastic body. Furthermore, because this device suspends the anode plate between the soft elastic bodies rotating opposite to each other,
Even when the anode plate is slightly deformed or / and the position of the anode plate is slightly shifted, the function of automatically positioning the anode plate at the center can be performed by the pressure of the soft elastic body. Therefore, this makes it possible to surely remove the deposit.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. The drawing shows a specific example of the apparatus for removing deposits on the anode plate of the present invention. That is, here, carrier 1
A large number of rotary drive shafts 3 are horizontally arranged in parallel with the apparatus frame 2 configured above at a required interval (the anode plate is introduced into the deposit removing area between these rotary drive shafts 3). Are located. These rotary drive shafts 3 are supported by bearings 4 provided on both sides of the device frame 2.
Are driven by separate electric motors 6 via, for example, a chain conduction system 5. In this case, adjacent ones of the rotary drive shafts 3 are rotated in opposite directions. The rotary drive shaft 3 is provided with mounting flanges 7, 7 ′ near both ends thereof, and between the mount flanges 7, 7 ′, is parallel to the longitudinal direction of the rotary drive shaft 3. And a number of pivot shafts 8 located therearound.
Has been erected. On each of the pivot shafts 8, for example, a strip-shaped wear-resistant soft elastic body 9 made of urethane resin or the like is alternately arranged with an annular spacer 10, and one end thereof is pivotally supported. doing.

The apparatus for removing deposits on the anode plate having such a configuration is used as follows. The anode plate 11 of the electrolytic cell is
At regular intervals, it is lifted all at once by a lifting device 13 provided on an overhead crane 12, transported onto the above-described anode plate deposit removing device, and lowered. In this case, the hanging member 13 includes:
Hooks 13A are provided at intervals corresponding to the arrangement intervals of the anode plates 11 in the electrolytic cell.
1 is engaged with the head bar 11A protruding from both sides.
Then, the anode plate 11 is already mounted on the electric motor 6 (for example,
40HZ, 1180rpm using an inverter)
For example, when the rotating drive shaft 3 enters the adhering substance removal region between the rotating drive shafts 3 at 400 rpm, the soft elastic bodies 9 receive centrifugal force due to the rotation of the rotary drive shaft 3. In a state of being extended in the radial direction, it collides with the surface of the anode plate 11 and peels off the attached matter. In this case, the impact force of the soft elastic body 9 applied to the anode plate is large. However, the soft elastic body 9 has a property (elasticity) of itself and a structure of being supported by the pivot shaft 8 so as to be supported by the anode plate. After colliding against the anode plate, it slides along the surface of the anode plate, so that no force for deforming the anode plate is applied. Further, since the anode plate is made of a soft material such as urethane resin, there is no possibility of damaging the anode plate. In addition, in the process of movement after the collision, the surface of the anode plate 11 is scraped by a drag to achieve the action of scraping off the attached matter. In this case, if the raising and lowering operation of the anode plate 11 is added, the effect is doubled.

In this embodiment, for example, the electric motor 6
Uses an inverter at a frequency of 40Hz and 1180r.
pm, and the rotary drive shaft 3 is driven to rotate at 400 rpm. The soft elastic body 9 is, for example,
85mm long, 20mm wide, 10mm thick, spacer 1
0 is a thickness of 5 mm. Further, the intermediate flange 1 supporting the pivot shaft 8 is located in the middle of the rotation drive shaft 3 so that the pivot shaft 8 is not bent by the centrifugal force applied to the soft elastic body 9.
The intermediate flange 14 is provided with, for example, the rotary drive shaft 3 so that the impact effect on the surface of the anode plate 11 corresponding to the flange mounting position is not lost.
In the circumferential direction, a cross shape (see FIGS. 6 and 7) is formed so as to support each pivot shaft at a distance, and the mounting position of the rotary drive shaft 3 is shifted in the longitudinal direction. In the above-described embodiment, urethane resin is used as the material of the soft elastic body 9. However, it is preferable to use a material having better cost performance in consideration of abrasion resistance and the like. In the drawing, reference numeral 15 denotes a guide for guiding the anode plate 11 to the attached matter removal area.

[0010]

According to the present invention, as described in detail above, a plurality of rotary drive shafts arranged horizontally in parallel, a mounting flange mounted in parallel with the rotary drive shaft in the longitudinal direction thereof, A pivot shaft parallel to the rotary drive shaft and mounted on the mounting flange around the periphery, and a number of abrasion resistant pivotally supported in a state of being arranged in the longitudinal direction with respect to the pivot shaft. Comprising a soft elastic body, the rotating drive shaft, the adjacent one is rotated in the opposite direction, and also raises and lowers the anode plate at the place where the rotation areas of the respective wear-resistant soft elastic bodies overlap, The soft elastic body is caused to collide with the surface of the anode plate by the centrifugal force applied thereto, and the adhered material is peeled off by the impact force. To remove deposits on the anode plate surface In addition, the automatic aligning action of the soft elastic body deforms the anode plate, without damage to, it is the removal of reliably deposits, even in the apparatus,
The wear and damage can be avoided, and an effect such as repeated use can be obtained by local repair such as replacement of parts.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a side view showing a use mode of the embodiment.

FIG. 4 is a plan view showing a configuration around a rotary drive shaft in the embodiment.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a sectional view taken along line BB of FIG. 4;

FIG. 7 is a sectional view taken along line CC of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier 2 Device frame 3 Rotation drive shaft 7, 7 'Flange 8 Pivot shaft 9 Wear-resistant soft elastic body 11 Anode plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) C25C 1/00-7/08

Claims (1)

(57) [Claims] 1. A plurality of rotary drive shafts arranged horizontally in parallel, a mounting flange mounted in parallel with the rotary drive shaft in a longitudinal direction thereof, and a position parallel to and around the rotary drive shaft. A pivot shaft attached to the mounting flange, and a number of wear-resistant soft elastic bodies pivotally supported in a state of being arranged in the longitudinal direction with respect to the pivot shaft,
The rotary drive shaft, adjacent ones are rotated in the opposite direction,
Further, the anode plate is moved up and down at a position where the rotation regions of the wear-resistant soft elastic bodies overlap, and the soft elastic body is caused to collide with the surface of the anode plate by centrifugal force applied thereto, and to adhere to Characterized in that it removes and adheres to the surface of the anode plate by the scraping action at the contact point of the soft elastic body and / or the raising / lowering operation of the anode plate. .