JPS6315327Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lance lifting and lowering device equipped with an attachment/detachment device for raising and lowering a lance for bubbling when preliminary refining of hot metal or molten steel is carried out.

FIGS. 1, 2, and 3 show a conventional device that holds a plurality of lances, selects any one or more of the lances, and lifts and lowers them into a pot using each elevator.

In other words, now we have a transverse truck 1 carrying multiple lances.
2 is horizontally stopped at the upper part of the pot position, and when you want to use the A lance 1 for refining work, use the A lance elevator 3 to lower the A lance 1 on the lifting platform 2 and lift the pot 1.
A lance 1 is immersed in water to perform refining work, and after completion of the refining process, the A lance 1 is raised and pulled back to its original position before being lowered.

When it is desired to perform refining work using the B lance 4, the B lance elevator 6 of the lifting platform 5 is used to perform the same operation as the A lance 1 described above. C Lance 7
When you want to perform refining work using
The same operation as the above-mentioned A lance is performed using the lance elevator 9.

Further, when it is desired to simultaneously immerse the A lance 1 and the B lance 4 in the pot 11 for refining work, the A lance 1,
The B lances 4 are lowered and immersed in the pot 11 for refining work, and after completion of the refining work, each lance is pulled back to its original position before being lowered.

A lance 1, B lance 4, C lance 7 in pot 11
When it is desired to immerse it in water and perform refining work, the above-mentioned actions are performed at the same time.

That is, as mentioned above, conventionally, one lance elevator is required for one lance.

In contrast to the conventional type described above, the present invention selects and lowers one or more lances using one lance elevator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 4 to 7.

As shown in these drawings, the transverse truck 11
A single lower lance mounting base 113 is attached to the lower lance mounting base 113 so as to be movable up and down.
3 has a pair of air cylinder operating chucks 109, 109, 110, 110, 1 at its upper and lower ends.
11 and 111, respectively, A lance 101,
A B lance 102 and a C lance 103 are attached. A single upper lance mount 112 is fixed above this lower lance mount 113. This upper lance mounting base 112 also has air cylinder actuating chucks 106, 107, 108, respectively, and A lance 101, B lance 102, and
It is possible to hold the C lance 103 and temporarily store it so that it does not fall.

The lance lift 104 is a device for raising and lowering a single lower lance mount 113. In other words, the lower lance mount 113 is mounted on the traversing table 114 via the lance lift 104.

Here, if you want to perform refining work by immersing the A-lance 101 in the pot 115, close the A-lance lower chuck 109, attach the A-lance 101 to the lower lance mounting base 113, and then attach the A-lance upper chuck 1 to the lower lance mounting base 113.
06 and remove the A lance 101 from the upper lance mounting base 112. The operations of these launch chucks 106 and 109 are remotely controlled by air cylinders.

The A lance 101 attached to the lower lance mounting base 113 is lowered by the elevator 104,
It is immersed in the pot 115 to perform the refining operation, and after completion of the refining operation, it is pulled up to its original position before being lowered, the A-lance upper chuck 106 is closed, and the upper lance mounting base 1
It is fixed at 12. Then, the A-lance lower chuck 109 is opened and the A-lance 101 is removed from the lower lance mounting base 113.

The above is an explanation of one process of raising and lowering one lance using A lance as an example, and B lance 102.
The refining operation using the C lance 103 and C lance 103 is the same as the operation process of the A lance 101 described above.

Next, a case will be described in which it is desired to simultaneously immerse the A lance 101 and the B lance 102 in the pot 115 to perform the refining work.

The A lance lower chuck 109 is closed and the A lance 101 is attached to the lower lance mounting base 113. At the same time, the B lance lower chuck 110 is also closed, and the B lance lower chuck 109 is closed.
Lance 102 is also attached to lower lance mount 113.

Then, the A-lance upper chuck 106 is opened and the A-lance 101 is removed from the upper lance mounting base 112. At the same time, open the B lance upper chuck 107 and also open the B lance 102 and the upper lance mounting base 11.
Remove from 2.

Then, the lower lance mounting base 113 to which the A lance 101 and the B lance 102 are attached is attached to the elevator 104.
After that, the lower lance mounting base 113 is pulled up to its original position before lowering, and then the A lance upper chuck 106 and the B lance upper chuck 107 are closed to remove the A lance. 101, fix the B lance 102 to the upper lance mounting base 112.

Then, the A-lance lower chuck 109 is opened, and the A-lance 101 is removed from the lower lance mounting base 113. At the same time, the B-lance lower chuck 110 is also opened, and the B-lance 102 is also removed from the lower lance 113.

The above is the process of refining using two lances A and B. A lance 101, B lance 102 and C lance 103 are simultaneously placed in pot 115.
If you want to perform refining work by immersing it in water, the above operation process also applies.

According to the lance elevating device of the present invention, arbitrary refining can be performed using one or more lances with one elevating device, and an appropriate refining effect can be achieved.

[Brief explanation of the drawing]

Figures 1 to 3 show the conventional lance lifting device.
Fig. 1 is a plan view, Fig. 2 is a front view, Fig. 3 is a side view, Figs. 4 to 7 show the lance lifting device of the present invention, Fig. 4 is a plan view, and Fig. 5 is a front view. Figure, 6th
The figure is a plan view taken along the line A--A in FIG. 5, and FIG. 7 is a side view. 2, 5, 8...lifting platform, 101...A lance,
102...B Lance, 103...C Lance, 10
4...Elevator, 106...A lance upper chuck, 107...B lance upper chuck, 108...
...C lance upper chuck, 109...A lance lower chuck, 110...B lance lower chuck,
111... C lance lower chuck, 112... Upper lance mounting base, 113... Lower lance mounting base,
114...Traveling trolley, 115...Pot.

Claims (1)

[Scope of utility model registration request] It has a lower lance mount that can be raised and lowered, on which a plurality of lances can be attached and detached for each lance using a cylinder-operated chuck, and a cylinder-operated chuck that is located above the lower lance mount and allows the lances to be attached and detached. A lance lifting device with an attachment/detachment device, comprising an upper lance mount for fixing a lance for temporarily storing a lance that cannot be lowered, and a single lance lifter for raising and lowering the lower lance mount.