JPS6319798Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention measures the temperature and carbon content of so-called molten metal such as hot metal and molten steel in the furnace during converter operation.
The present invention relates to a sublance device used for sampling hot metal for component analysis, and more specifically, to improvements to its transfer device.

By the way, the above-mentioned sublance device is
For converters of 150 tons or more, there is a relatively large space above the converter, so it is easy to install it later, but for smaller converters, the size of the building itself is quite small, and the size of the building itself is quite small. Various auxiliary equipment such as lance equipment, water cooling equipment, waste gas treatment equipment, raw material charging equipment, etc. do not change as much as the ratio of furnace volume, so
There was almost no extra space above the converter, so it was impossible to install a sublance device with a conventional structure. This is because there are two main types of conventional sublance devices: a rotating guide type and a fixed guide type, but in the rotating guide type, the carriage 23 that grips the sublance 22 is generally movable up and down, as shown in FIG. The lifting guide device 21 installed in the building is pivoted horizontally via a pin joint 25 to a plurality of brackets 24 fixedly installed on the building side with gaps in the vertical direction, and is used to drive hydraulic cylinders, etc. The fixed guide type has a movable guide device 31 that is movable in the horizontal direction, as shown in FIG.
and a carriage 33 that grips the sub-lance 32
The movable guide device 31 above the fixed guide device 34 is attached to a plurality of brackets 35 that are fixed on the building side above the converter with gaps in the vertical direction. is the horizontal guide member 36 together with the carriage 33.
After the carriage 33 moves along the movable guide device 31 and reaches the connected state, the carriage 33 moves up and down from the movable guide device 31 to the fixed guide device 34.

Therefore, due to the structure of the former, the sub-lance is moved by turning the lifting guide device, so if the moving distance becomes large, the turning radius needs to be increased.Moreover, if there are other auxiliary equipment within the turning area, it will be difficult to turn. Due to the relationship with other necessary or existing auxiliary equipment, it cannot be installed in a small converter that does not have a large space above the converter. Above the furnace,
It is necessary to fix the equipment vertically by fixing it to the building or to a bracket stretched from the beam of the building, and as with the former, the equipment space is greatly restricted due to the relationship with other incidental equipment, so it is not suitable for small-scale transfers. It was impossible to install it in the furnace. Moreover, both the former and the former are structurally
The drawback was that a fairly high degree of precision was required in the manufacture and installation of the device.

For this reason, in the past, in small converters, workers tilted the converter to measure the temperature and sample molten metal, etc., without using a sublance device. Then, as the molten metal moves within the furnace, the temperature changes and becomes inconsistent each time it is tilted.
Not only was it impossible to make accurate measurements, but the work was extremely dangerous and the work efficiency was poor, so there was a desire in the industry to install a sublance device in small converters as well.

This idea was developed in view of the above points, and it is possible to install a sublance device especially in a small converter, while securing the necessary space for the ancillary equipment and their repair and replacement. High precision is not required as in the past,
The purpose is to provide a sublance device that is easy to manufacture and install.

Embodiments of this invention will be described below with reference to FIGS. 3 to 5, which show embodiments of the invention.

Reference numeral 1 denotes an elevating guide device for the sub-lance 2, which consists of a long frame 3 with guide rails 4 having a U-shaped cross section facing each other on both sides and movable in the longitudinal direction within this frame 3. a carriage 5 which is mounted on the sub-lance 2 and grips the upper end of the sub-lance 2;
Rollers 6 are installed on both sides of the guide rail 4 to prevent the carriage 5 from swinging when moving up and down by coming into contact with the three walls of the guide rail 4, respectively. In addition, the wire rope 7, which is stretched around a pulley 19 provided at the upper end of the carriage 5, is connected to the wire drum of the lifting winch by passing the wire rope 7 through a pulley 19' on the carriage 10 and a pulley on the building side (not shown). (not shown), the other end is fixed to a wire rope fixing bracket (not shown) fixed to the building, so that the carriage 5 is suspended by the wire rope 7 and moved up and down.

A pair of horizontal guide members 8 and 8' are installed on the ceiling of the building at a predetermined distance vertically between the sub-lance insertion position above the converter A and its standby position. horizontal guide member 8,
8', a roller 9, which is in rolling contact with this;
The traveling carriage 10 is movably supported by 9'.

Further, a bracket 11 is provided to protrude downward from the lower surface of the tip of the traveling truck 10, and a bracket 12 is also provided to protrude backward from the upper end of the frame 3 of the lifting guide device, so that the tip portions of both brackets 11 and 12 are fixed to each other. Pivotally connected by a pin 13, the lifting guide device 1
is suspended on a traveling trolley 10 so as to be freely slidable.

In addition, a bracket 14 is provided at the lower end of the frame 3 of the elevating guide device and protrudes forward.
A roller 15 is installed downward from the tip of the horizontal guide member 8, 8' at the position of this roller 15.
A lower horizontal guide member 16 installed parallel to the
The roller 15 is rotatably mounted to hold the lifting guide device 1 in the vertical direction.

Furthermore, the end rod portions of a pair of cylinders 17 and 18 that are operated in conjunction with each other are attached to both the upper and lower ends of the lifting guide device 1, and the extending and contracting movements of both cylinders 17 and 18 move the lifting guide device 1 into a horizontal guide member. 8, 8', and 16. Furthermore, the fifth
In the figure, A indicates a converter, B indicates a lance device, and C indicates waste gas treatment equipment.

Next, the operation mode of the above embodiment will be explained. With the sub-lance 2 housed in the lifting guide device 1, the cylinders 17 and 18 are extended and moved from the standby position to the sub-lance insertion position above the converter. The carriage 5 is lowered by the drive device via the wire rope 7, and the sublance 2 is inserted into the converter. After the sublance 2 completes its work, the sublance 2 is pulled up and moved to its original standby position in the opposite manner to the above.

As explained above, the sublance device of this invention has both upper and lower ends of the elevating guide device in which the carriage that grips the sublance is arranged to be able to move up and down.
Since the sublance is movably supported and held in the vertical direction along parallel upper and lower horizontal guide members, the horizontal guide is spaced apart by a length approximately equivalent to the lifting guide device from the standby position of the sublance to the upper part of the converter. Since it is only necessary to install the members vertically, it can be easily installed without disturbing the auxiliary equipment above the converter, and the auxiliary equipment can be repaired or replaced through the gap between the upper and lower horizontal guide members, making it easier to install the equipment. Since there is no need to provide extra space for repair or replacement, the present invention can be installed even in small converters where there is not enough space above the converter to install the sublance device of the conventional structure.

In addition, the horizontal guide member that supports the lifting guide device can also be supported by supports from the floor.
Like conventional sublance equipment, the building, building beams,
Alternatively, since there is no need to support it with a bracket or the like stretched from these, it can be easily installed in an existing converter.

Furthermore, since the lifting guide device is held in the vertical direction by supporting its upper and lower ends on horizontal guide members, it can be held vertically accurately and reliably. If the upper end is pivotally attached to the upper horizontal guide member using a pin joint or the like, the device can be held in the vertical direction by adjusting only the lower end, making adjustment easier. Because it is guided and held by the horizontal guide member not only at the lower end but also at the lower end,
This system reliably prevents the sub-lance from shaking when it is raised and lowered, allowing the sub-lance to move in and out of the converter reliably.Furthermore, a pair of drive devices with lifting guide devices installed at both the upper and lower ends of the sub-lance move the sub-lance in conjunction with each other. If this is done, the lifting guide device is held in the vertical direction not only when stopped but also when moving, so even if the lifting guide device is long, it will not be twisted or bent, and its durability will be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional guide-swivel type sub-lance device, Fig. 2 is a side view showing a conventional guide-fixed sub-lance device, Fig. 3 is a front view showing an embodiment of the present invention, and Fig. 4 is a side view showing a conventional guide-fixing sub-lance device. The same side view and FIG. 5 are overall schematic diagrams showing the installed state of the device of the present invention. 1... Lifting guide device, 2... Sublance, 3
... Frame body, 4 ... Guide rail, 5 ... Carriage, 6, 9, 9', 15 ... Roller, 7 ... Wire rope, 8, 8', 16 ... Horizontal guide member,
10... Traveling trolley, 11, 12, 14... Bracket, 13... Pin, 17, 18... Cylinder,
19, 19'... Pulley, 21... Lifting guide device,
22...Sabrance, 23...Kyaritsuji, 24
...Bracket, 25 ...Pin joint, 31
...Movable guide device, 32...Sub-lance, 33
...Carriage, 34...Fixed guide device, 35
...Bracket, 36...Horizontal guide member, A...
... Converter, B... Lance device, C... Waste gas treatment equipment.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Both upper and lower ends of an elevating guide device in which a carriage for gripping a sub-lance is arranged to be movable up and down,
A sublance device characterized in that it is movably supported along parallel upper and lower horizontal guide members and held in a vertical direction. (2) The sublance device according to claim 1, wherein the upper end of the elevating guide device is slidably pivoted to an upper horizontal guide member. (3) The sublance device according to claim 1 or 2, wherein the elevating guide device is moved by a pair of upper and lower drive devices that are operated in conjunction with each other.