JPS6256514A - Method for adhering ring to bubbling lance - Google Patents

Abstract

PURPOSE:To rationalize the work for adhering rings to a lance by mortar by providing a ring support device to a carriage for assembling the lance. CONSTITUTION:The rings 5 inserted onto a lance steel pipe 4 are assembled over the carriage 10 while the rings are held supported by ring 5 supporters 17. Such assembly is fixed onto a working floor by simultaneously hoisting the top end of the steel pipe 4 and the end brace 18 of the top end of a shaft 16 and inserting the rod into a hole 13d of guide 13b of a gripper 13a for the lance base part 4a at the bottom end in the adhering work place. Ring 5 supporting rings 17a which contact with stopper plates 17c of the supporters 17 are then rotated successively from the lower side around the shaft 16 and the rings 5 are dropped by each piece. The mortar is coated atop the rings 5 by utilizing the spacings generated between the rings 5 and 5 and the ring 5 upper than the coated ring is dropped thereonto so that the rings are adhered. The above-mentioned rod is removed when the adhesion of 4-5 pieces of the rings 5 is completed. The lance, etc. are lowered and when a guide 20 for fixing the lower lance comes to the position of the working floor, the rod is inserted into the guide 20 to fix the lance. The adhesion and assembly of all the rings 5 are completed by the same procedures mentioned above.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a device used for assembling a bubble 17 grance used for stirring molten steel.

[Conventional technology]

A bubbling lance used for stirring molten steel, etc. consists of a steel pipe with a donut-shaped ring made of refractory bricks surrounding the outer periphery.The lance is inserted into molten steel and inert gas is ejected from the tip of the lance. Assembling the bubbling lance, in particular, inserting a donut-shaped ring made of refractory brick into a steel pipe, stirs the molten steel and equalizes the temperature.
Conventionally, the method shown in FIG. 8 has been used to bond each ring with mortar.

In other words, in Fig. 8, the top of the platform (3) and the lifting device da (
Two workers (1) and (2) stand on top of @pipe (
4) on the stand (3) with its base (4a) facing down, and the worker (1) on the stand picks up the rings (5) deposited on the stand.
Take them one by one, insert them into the steel pipe (4) and drop them, rising: Jl % 'B'F.

(6) The worker (2) above applies mortar (7) to the bottom of each ring to adhere the rings.

[Problem that the invention seeks to solve]

By the way, each ring (5) made of firebrick weighs more than 10 ky, so this work by the workers (1) and (2) is quite hard work. Therefore, two or more people were required, and the f'lli workers had to work in an unnatural posture, making the work problematic in terms of safety.

Therefore, in order to streamline this work, we developed a trolley for assembling the lance, and inserted the ring (5) into the steel pipe (4) on the trolley. Although the insertion work for steel pipes (
The work of applying mortar (7) to the ring (5) inserted through the hole (4) and gluing the ring (5) remained unimproved.

The present invention aims to provide an apparatus that is effective for applying mortar to the above-mentioned ring surfaces and bonding each ring.

[Means and methods for solving problems]

In the lance assembly trolley, there are two holes for rod insertion.
a lance base retainer with a guide having holes;
A shaft with one end attached to the guide; a stop plate attached to the above shaft for the same number of rings at intervals slightly larger than the length of the rings; a ring supporter comprising a rotatable support ring and a pin for attaching the support ring to a stop plate; a lance fixing guide inserted through the shaft and attached to every 4 to 5 ring supports; the shaft A ring support device consisting of an end metal fitting attached to the tip of the ring is attached.

[Effect]

Since the above-mentioned ring support device is attached to the cart for assembling the lance, when assembling the lance on the above-mentioned cart, each ring inserted through the steel pipe is supported by each supporter of the ring support device, and then the lance is assembled in the ring bonding workshop. The tip and the tip of the ring support device are hoisted at the same time, and a rod is inserted through the guide hole of the lance base holder at the lower end to fix it to the work floor.

Next, for each ring supported by each supporter, the support ring of the supporter is sequentially rotated from the bottom to drop the rings one by one, and mortar is applied to the top surface of the ring using the gap created between the rings. After applying, drop the upper ring and glue.

After repeating this operation and gluing 4 to 5 rings, the rod inserted through the gud of the lance base holder is removed, the upper hoist is operated to lower the lance and the ring support device, Insert the rod into the hole of the next lance fixing guide and fix it to the floor.

The ring assembly work is completed by repeating the above steps and completing the adhesion of all the rings.

[Embodiments of the invention]

Figures 1 to 7 show one embodiment of the present invention.
The figure shows (a) a plan view of the lance assembly cart, (b) a side view, and (a) the ring support device attached to the above-mentioned cart.
) is a plan view, (b) is a side view, (C) is a front view, Fig. 6 is an IJ ring supporter (a) is a plan view, (b) is a side view, and Fig. 4 is a lance hanging method. 5 is a front view of the lance fixed to the work floor, FIG. 6 is an explanatory diagram of the method of fixing the lance base to the work floor, and FIG. 7 is an explanatory diagram of the operation of the ring supporter.

In the figure, (4) is the lance steel pipe, (5) is the ring, (7) is the mortar, αq is the lance assembly trolley, αη is the script frame, (6) is the handle, and 4 is the grip of the lance base (4a). The device (13a) is a lance base gripper, (13b)
is a guide, (13c) is a bracket, (13d) is a hole for rod insertion, (13e) is a shaft (1→
hole for supporting, α◆ is support frame, (15 is pin, C
IQ is the axis of the ring support device, αη is the ring support device, (1
7a) is a ring support ring, (17b) is a pin hole of the support ring, (17c) is a +h plate, (17d), (17c)
) is the pin hole, (17f) is the pin, αh is the end hardware of the Eling support device, 4 is the support for the end hardware, (1) is the lance fixing guide, eη is the hoist, (Foundation) is the work floor, (
property) is a rod.

In FIG. 1, the lance assembly trolley αOK is provided with a lance base gripping device (to) at one end of its frame α■. The gripping device α3 includes a lance base gripper (13
a) and the guide (13b) are connected with a bracket (13c), and the support frame C is fixed to the truck frame (11).
It is removably pivoted to L4 with a pin (9). The hook support device inserts one end of its shaft 0Q into the shaft support hole (13e) of the gad (13b) of the gripping device α→, and engages the end metal fitting 0 peak, thereby removing the end metal fitting. (Foundation) to the trolley frame (
11) Place it on the support stand provided above. Ring supports αη are inserted through the shaft 04r of the ring support device at intervals slightly larger than the length of the ring (5). As shown in FIG. 6, the ring supporter αη includes a stop plate (17c) welded to the shaft αQ, and the stop plate (17c) vc
A support ring (17a) that abuts and is rotatable around the axis, and a pin (1) for fixing the position of the support film (17a).
7f), and a pin hole (171)) drilled in the support ring (17a) into which the pin (17f) is inserted and two pin holes drilled in the stopper plate (17a). 17d
), (j7e). In FIG. 6(a), the position shown by the solid line is when the ring support ring (17a) is in a state of supporting the ring (5), and the position shown by the dashed dotted line is when the support ring (17a) is in the state of supporting the ring (5). The position shown is when the holder is removed. In addition, the link supporter αη
A lance fixing guide (1) formed in the same manner as the guide (13b) attached to the lance base gripper is inserted into the axis α→ every four to five lances and fixed thereon.

The ring support device attached to the lance assembly trolley Q ( ) is constructed as described above.Next, the operations of assembling and bonding the ring to the lance steel pipe will be explained.

When assembling the ring (5) through the lance steel pipe (4) on the truck aq, move the ring support ring (13a) to the position indicated by the solid line in Fig. 6(a)', that is, the ring support ring (
When the ring (5) is positioned to be supported by 15a) and the assembly is completed, the ring (5) is pushed by a trolley (IQ) and transported to the ring bonding workshop for the next process.

FIG. 4 shows the work of hoisting a lance to the work floor slope of the above-mentioned workshop. In other words, the lance transported to the workshop (Fig. 4 ■) is attached to the hoist (2) with the tip of its steel pipe (4).
Be lifted up by (FIG. 4, ■ and ■) At this time, the ring support device is also lifted up by the host 01) at the same time as the metal fitting at the end of the ring support device.

In the state shown in Fig. 4 (■), when the pin (T) of the lance base gripping device tα→ on the truck q is removed and the hoist (■) is activated, both the lance and the ring support device leave the truck QQ and are lifted upward. , the state shown in Figure 4 (■) will be reached.

When the lance base gripping device q reaches the predetermined position on the work floor (a), the two rods are smoothly inserted into the holes (13e) of the guide (13b) of the lance base gripping device as shown in Fig. 6. , fix the lance base to the work floor (a).

Next, as shown in Figure 6, the lowest ring support ring (17
Remove the by (17f) of a) and remove the support fB (17a)
When the ring is rotated around the axis αQ and placed at the position indicated by the dashed-dotted line in FIG. As shown in Figure 7, the ring (5a) abuts against the lance base (4a). Then, apply mortar (7) to the top surface of the fallen ring (5a), and then drop the ring (5b) on top of it in the same manner as above.

The upper surface of the ring (5a) and the lower surface of the ring (5b) are adhered via mortar (7). By repeating the same procedure, when the adhesion of 4 to 5 rings (5) is completed, the rod (a) inserted through the guide (13b) of the lance base gripping device is pulled out and the hoist is activated. lower the lance warping ring support device, and when the lower guide (7) is on the work floor (a), the rod (2)
Insert the lance into the guide rod and fix the lance to the work floor (A). Next, apply the mortar (7) to the upper surface of the ring (5) by operating the ring supporter CI''i) in the same manner as above.
Repeat the operation of lowering the ring (5) and gluing the ring, 4~
Once the five rings (5) have been glued, lower the lance again in the same way as above, fix the upper gud ■ to the floor (2), and repeat the ring gluing operation.In this way, all the rings are glued. When the work is completed, the lance is lowered by a hoist and transported to a predetermined location using a cart QO.

〔Effect of the invention〕

As described above, the present invention attaches a ring support device to the lance assembly cart, and uses the ring support device to support the ring in one piece.
Since the mortar is applied and glued to each ring at increasing intervals, the work of gluing the rings with mortar during the lance assembly process is greatly streamlined, and the work can be done safely and efficiently by human workers. Became.

[Brief explanation of the drawing]

Figures 1 to 7 show one embodiment of the present invention.
The figure shows (a) a plan view of the lance assembly cart, (b) a side view, and (a) the ring support device attached to the above-mentioned cart.
) is a plan view, (b) is a side view, and (c) is a front view. Figure 6 is a plan view of the ring supporter, (b) is a side view, Figure 4 is an explanatory diagram of the lance hanging method, Figure 5 is a front view of the lance fixed to the work floor, and Figure 6 is a plan view of the ring supporter. FIG. 7 is an explanatory diagram of a method for fixing the lance base to a work floor, FIG. 7 is an explanatory diagram of the operation of a ring supporter, and FIG. 8 is an explanatory diagram of a conventional ring bonding method. In the figure, (4) is the lance steel pipe, (5) is the ring, (7) is the mortar, 0q is the lance assembly trolley, α3 is the lance base gripping device, (13a) is the lance base gripping device, and (13b) is the gas 1 (13c) K'S bracket, (13d) is the rod insertion hole, (13e,) is the hole for supporting the shaft aQ, α4 is the support frame, α■ pin, αQ is the shaft, (13e,) is the hole for supporting the shaft aQ, is a ring supporter. (17a) is a ring support ring, (17b) is a pin hole,
(17c) is the stop plate, (17f) is the pin, 0→ is the end metal fitting of the ring support device, q is the support stand, and the fence is the guide for fixing the lance. Cυ is the hoist, (c) is the work floor, and ri is the rod. Agent Patent Attorney Tadashi Sato Year 1ll (a) 4: Lance price 1 Palace 10: Lance assembly trolley 13; Heunsu Kiyun J-gito 14: 叉輔伜 20: Kunsu Ｇｕｒｉｎｄｅｒ Ｉｄ ３１１１６ ; Axis 17b: JL. Fig. b Fig. 4 Fig. 21: Hoist 22 carp 11 (floor 7fi 8th prisoner

Claims (1)

[Claims] A lance assembly trolley used for assembling a bubbling lance, comprising: a lance base gripper equipped with a guide having two holes for rod insertion; a shaft having one end attached to the guide; ; a stop plate attached to the shaft at intervals slightly larger than the length of the rings, the number of which is equal to the number of rings; a support ring that is inserted through the shaft and comes into contact with the stop plate so as to be rotatable around the shaft; and the support ring. a ring supporter consisting of a pin for attaching the ring to the stop plate; lance fixing guides inserted into the shaft and attached to every 4 to 5 ring supports; an end secured to the tip of the shaft; A ring bonding device for a bubbling lance, characterized in that it is equipped with a ring support device comprising: a metal object;