JP2915562B2 - Left and right plates of molten metal filtration unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a filtration unit for filtering a molten metal such as aluminum, zinc or copper.

(Prior Art) Conventionally known, Japanese Utility Model Publication No. Sho 63-47414 discloses a left-right alumina porous tube formed between a vertical left side plate and a right side plate formed of a silicon carbide refractory plate. There is described a filtration unit having a structure in which a plurality of horizontal ceramic tubes are wound up and down and back and forth, and a filtration chamber filled with a molten metal such as aluminum for accommodating the filtration unit. It should be noted that a known microfilm disclosed in Japanese Utility Model Application No. Sho 61-128931 (Japanese Utility Model Application Laid-Open No. 63-39158) is disclosed in
Japanese Patent No. 34732 discloses a similar configuration.

(Problems to be Solved by the Invention) However, in a known device, the left side plate and the right side plate of the filtration unit have a structure that is completely immersed in the molten metal. With this structure, it is difficult to take out the filtration unit. The reason is that, after the work is completed, even if you try to fit the pins of the hanging jig into the engagement holes formed in the upper part of the left and right plates to remove the filtration unit, the engagement holes are melted. This is because it is blocked by metal.

However, all of the conventional devices have the structure illustrated in the above-mentioned known publication.

In order to solve this, the position of the engagement hole may be set to a high position that does not fall into the molten metal.

(Object of the Invention) The present invention has an object to facilitate removal of the filtration unit.

(Means for Solving the Problems) Therefore, in the present invention, a left-right alumina porous tube is formed between the vertical left and right plates 4 and 5 formed of a silicon carbide refractory plate. In the left side plate and the right side plate of the filtration unit 1 having a structure in which a plurality of horizontal ceramic tubes 6 are wrapped around up and down and back and forth, the filtration unit 1 formed above the left side plate and the right side plate of the filtration unit 1 Lifting jig 2
The positions of the engagement holes 9 and 10 with which the filter unit 1
The left side plate 4 and the right side plate 5 are formed tall so as to have a height projecting upward from the surface of the molten metal 7 when stored in a filtration chamber 8 for filtering the molten metal 7 such as aluminum. And a left side plate and a right side plate of the molten metal filtration unit.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a cartridge type filtration unit, 2 is a hanging jig for lifting, moving, installing and removing the filtration unit 1, and 3 is installing the filtration unit 1. It is a filtration tank.

The filtration unit 1 includes a plurality of horizontal ceramic tubes 6 formed of left and right alumina porous tubes between a left side plate 4 and a right side plate 5 formed of left and right silicon carbide refractory plates. It has a substantial weight due to its full structure.

The filtration unit 1 is housed in a filtration chamber 8 filled with a molten metal 7 such as aluminum, and filters the molten metal 7.

A plurality of engaging holes 9, 9 and engaging holes 10, 10 are formed at predetermined positions in the front-rear direction at respective upper positions of the left side plate 4 and the right side plate 5 of the filtration unit 1.

Left and right pins 1 removably engaged with the engagement holes 9 and 10
An example of the structure of the hanging jig 2 having 1 and 12 will be described. 13 is a frame assembled by vertical and horizontal steel rods, and is provided on the front, rear, right and left, and the upper frame 15 of the same shape as the lower frame 14 of a bird's-eye view square shape. The four vertical columns 16 constitute a substantially square frame as a whole.

A longitudinal axis cylinder 17 is fixed to the front, rear, left and right intermediate (center) positions of the upper frame 15 of the frame 13 by any fixing means such as bolting or welding, and an up / down moving rod 18 is slidably inserted vertically. I do. The upper end of the vertically moving rod 18 protrudes above the vertical cylinder 17, and the rotating end of the arm 19 is pivotally mounted on the shaft 20 in the front-rear direction.

The base of the arm 19 is fixed by welding or other means to the center of a rotating shaft 21 which is provided in the vicinity thereof and which is long in the front-rear direction.

The rotating shaft 21 is axially mounted on bearings 22 on both front and rear sides provided on the upper frame 15, and both ends of the rotating shaft 21 project outward from the bearing 22 to form projections 23. In each of the front and rear protrusions 23,
When viewed from above, both ends of the manual operation handle 24 formed in a U-shape are fixed, and when the manual operation handle 24 is moved up and down, the vertically movable rod 18 is moved up and down via the arm 19.

The lower end of the vertically moving rod 18 protrudes below the vertical cylinder 17, and the upper ends of the left link 25 and the right link 26 are respectively mounted on the lower link. The left link 25 is inclined leftward, and at the lower end thereof, a U-shaped left frame 27 whose lower end is open when viewed from the front-rear direction is mounted on the shaft, the right link 26 is inclined rightward, and the lower end is inclined from the front-rear direction. A U-shaped right frame 28 whose lower end is open when viewed is pivoted. The lower end of the fixed link 29 is welded and fixed to the center of the upper part of the U-shaped left frame 27, and the upper end of the fixed link 29 is pivotally mounted on the lower end of the left link 25. Similarly, the upper end of the fixed link 30 of the U-shaped right frame 28 is pivotally attached to the lower end of the right link 26.

The U-shaped left frame 27 has its upper position pivotally attached to the vertical column 16 by a shaft 31, and the U-shaped right frame 28 similarly pivotally attached to the vertical column 16 by a shaft 32. The left pins 11 and 11 are fixed to both the lower and front ends of the U-shaped left frame 27, and the right pin 1 is fixed to both the lower and front ends of the U-shaped right frame 28.
2, 12 are fixed.

Reference numeral 33 denotes a wire connecting portion provided at four positions in front, rear, left and right of the upper frame 15, reference numeral 34 denotes a wire, reference numeral 35 denotes a left positioning frame provided at the left center of the lower frame 14, and reference numeral 36 denotes a right center provided at the right center of the lower frame 14. A positioning frame 37 is a lift.

Since the left side plate 4 of the filtration unit 1 is on the tapping side, the left side plate 4 needs to be in close contact with the tapping side wall 40 of the filtration chamber 8 via the packing 41, and the right side plate 5 on the opposite tapping side and the filtration chamber The left side plate 4 is brought into close contact with the tapping side wall 40 by driving a wedge 43 between the tapping side wall 42 of FIG. In the figure, 44 is a hot water supply port and 45 is a hot water outlet.

In the present invention, the height of the left side plate 4 and the right side plate 5 is stored in the
The height of the pins 11 and 12
Are formed above the surface of the molten metal 7. Also, the wedge 43 is similarly formed to be high.

(Operation) Next, the operation will be described.

In FIG. 4 and FIG.
24 is moved up and down, via the rotating shaft 21, the arm 19, and the shaft 20,
The vertical bar 18 is moved down. Then, the upper ends of the left link 25 and the right link 26 move down, and the lower portions open, so that the fixed links 29 and 30 having the upper ends fixed to the lower ends of the left link 25 and the right link 26 are pivoted. 31, open outward around the axis 32, the fixed link 29 and the fixed link 30 and the U-shaped left frame 27 and the U-shaped right frame 28 which are integrally formed with the shaft 31 and the shaft 32, respectively.
The left and right pins 11, 12 fixed to the lower ends of the U-shaped left frame 27 and the U-shaped right frame 28 are retracted from the left and right plates 4 and 5, respectively. To

Next, the lift 37 provided on the upper frame portion and the suspending jig 2 are connected by a wire 34, the whole suspending jig 2 is lifted and moved, and is gently lowered at a position where the filtration unit 1 is located.
The positioning frame 36 is positioned by being fitted inside the left side plate 4 and the right side plate 5, and the lower frame 14 is superimposed on the upper surfaces of the left side plate 4 and the right side plate 5. Are fixed on the filtration unit 1 and the right and left pins 11,
Reference numeral 12 denotes a position facing the left and right engagement holes 9 and 10.

Therefore, when the manual operation handle 24 is moved downward, the left and right pins 11 and 12 move outward and engage with the engagement holes 9 and 10, respectively.
Is lifted, and is moved onto the filtration chamber 8 of the filtration tank 3 from which the lid provided at the desired position has been removed.

On the filtration chamber 8, the lift 37 causes the left side plate 4 of the filtration unit 1 to face the tapping side wall 40 of the filtration chamber 8 and the right side plate 5 of the filtration unit 1 to face the counter tapping side wall 42 of the filtration chamber 8. And lower the filtration unit 1 with the lift 37,
When the wedge 43 is driven, the wedge 43 is guided by the guide frame and falls under its own weight into the right side plate 5 and the counter-watering side wall 42. The packing 41 on the outer surface of the left side plate 4 is brought into close contact with the tapping side wall 40.

Next, the molten metal 7 is supplied from the hot water supply port 44 to be filtered. The height of the left side plate 4 and the right side plate 5 of the present invention is set to be equal to the height of the molten metal 7 in the state of being stored in the filtration chamber 8. Height above the surface, and the pin 1
Since the engagement holes 9 and 10 with which the engagements 1 and 12 are formed are formed in the protruding portions, the engagement holes 9 and 10 do not contact the molten metal and do not block the engagement holes 9 and 10 with the molten metal. In addition, the removal operation of the filtration unit 1 is easy. The same applies to the case of the wedge 43.

(Effects) In the present invention, a horizontal ceramic tube 6 formed of an alumina porous tube in the left-right direction between a vertical left side plate 4 and a right side plate 5 formed of a silicon carbide refractory plate is vertically and vertically moved. In the filtration unit 1 having a structure in which a plurality of filtration units 1 are wound on the left and right plates, a lifting jig 2 for lifting the filtration unit 1 formed on the left and right plates of the filtration unit 1 is engaged. When the filter unit 1 is housed in the filtration chamber 8 for filtering the molten metal 7 such as aluminum, the positions of the engaging holes 9 and 10 are set so as to protrude above the surface of the molten metal 7. Since the left and right plates 5 and 5 are formed so that the height of the left and right plates 5 is high, the hanging jigs 2 formed on the left and right plates 4 and 5 are engaged with each other. Engaging hole 9 10 is not blocked by the molten metal 7, it is effective to facilitate removal of the filtration unit 1.

[Brief description of the drawings]

1 is a vertical front view of a filtration tank, FIG. 2 is a cross-sectional plan view of the filtration tank, FIG. 3 is a vertical side view of the filtration tank, FIG. 4 is a vertical front view of a hanging jig, and FIG. FIG. 6 is a partially cutaway side view of the unit, FIG. 6 is a longitudinal side view of the hanging jig, and FIG. 7 is a front view of the filtration unit. DESCRIPTION OF SYMBOLS 1 ... filtration unit 2 ... hanging jig 3 ... filtration tank 4
... left side plate, 5 ... right side plate, 6 ... horizontal ceramic tube, 7 ... molten metal, 8 ... filtration chamber, 9 ... engagement hole, 10 ...
Engagement hole, 11 Left pin, 12 Right pin, 13 Frame, 14 Lower frame, 15 Upper frame, 16 Vertical column, 17
Vertical axis tube, 18 Vertical rod, 19 Arm, 20 Shaft, 21
... Rotating shaft, 22 ... Bearing, 23 ... Protrusion, 24 ... Manual operation handle, 25 ... Left link, 26 ... Right link, 27 ...
C-shaped left frame, 28 …… C-shaped right frame, 29 …… Fixed link, 30 ……
Fixed link, 31… shaft, 32… shaft, 33… wire connecting part, 34… wire, 35… left positioning frame, 36… right positioning frame, 37… lift, 40… tapping side wall, 41 …… Packing, 42 …… Side side wall, 43 …… Wedge, 44… Hot water supply port, 45…
... the outlet.

Claims (1)

(57) [Claims] 1. A plurality of horizontal ceramic tubes 6 formed of an alumina porous tube extending in a horizontal direction between a vertical left side plate 4 and a right side plate 5 formed of a silicon carbide refractory plate. In the left side plate and the right side plate of the filtration unit 1 having a structure of being wound around one by one, a hanging jig 2 for lifting the filtration unit 1 formed above the left side plate and the right side plate of the filtration unit 1 is engaged. The positions of the holes 9 and 10 are such that when the filtration unit 1 is housed in the filtration chamber 8 for filtering the molten metal 7 such as aluminum, the height thereof projects above the surface of the molten metal 7. The left and right plates of the molten metal filtration unit in which the left and right plates 4 and 5 are formed tall.