JPS626117Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature measuring sampling device for a converter, and more particularly to a device that uses a probe to measure the temperature of molten steel in a converter and simultaneously collects a molten steel sample.

Previously, the converter was tilted almost horizontally to measure the temperature of the molten steel in the converter and to collect samples.The work involved attaching a probe or pump (sampling container) made of a paper tube to the tip of a long rod and allowing workers to tilt the converter almost horizontally. This is done by inserting the steel into the steel and immersing it in molten steel, but the high temperatures create a poor working environment and pose safety issues.
In order to solve this problem, it is common practice to install a traveling trolley in front of the reactor equipped with a sampling mechanism and a temperature measuring mechanism that can freely expand and contract and tilt. Since it is arranged to move forward and backward, it is necessary to have the traveling cart stand by at a remote location except during temperature measurement work due to the relationship with other work such as setting up the ferroalloy etc. to be added to the ladle during tapping. For this reason, it is difficult to quickly install the traveling cart in the required position during busy times when blowing has been completed, reducing work efficiency. The present invention aims to solve this type of problem that arises in the previous work of measuring the temperature of molten steel in a converter and taking samples.

The purpose of this invention is to eliminate the use of long bars by hand, and to have them stand by in a position close to the converter without interfering with the various operations that are carried out at the converter during busy periods after the completion of blowing, so that they can be used quickly and reliably when required. The object of the present invention is to obtain a temperature measurement and sample collection device for a converter equipped with a traveling trolley that is brought into a use position.

According to the present invention, one end is attached to one end of a door truck mounted on a track laid on the floor parallel to the rotation axis of the converter and equipped with a charging door on the side facing the converter. A horizontal arm of a predetermined length is rotatably mounted and has a retracted position adjacent to the front of said door trolley and a horizontal arm approximately around said point when the charging door is opened and placed in the temperature sampling position.
A long and slender temperature sampling trolley 3 that rotates 90 degrees and reciprocates in an arc between a temperature sampling position that faces almost the center of the converter mouth, and a temperature sampling probe attached to one end and a temperature measuring trolley at the other end. Temperature measurement sampling for a converter, characterized in that it is equipped with a temperature measurement rod 5 having a telescopic structure which is inserted into and removed from the upper elongated sheath member and inserted into the furnace mouth from the temperature measurement sampling trolley at the construction road position. A device is obtained.

Now, an embodiment of the apparatus of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1, a converter 11 and a closed enclosure 13 enclosing the converter are shown. enclosure 1
3 is equipped with a charging door 14 on the lower side of the figure that slides back and forth parallel to the rotation axis XX of the converter 11, and is designed to be opened when charging cold material and hot metal to the converter 11. . The converter 11 is rotated around the rotation axis XX, and the furnace opening 12 is rotated during charging when closing.
It is placed in a charging position facing the door 14. In the illustrated example, the charging door 14 is comprised of two halves 14A and 14B that come together opposite the reactor core to close the enclosure 11. When the charging door 14 is opened, the furnace opening 12
is turned directly to the side, and cold material and hot metal are charged. Note that the charging door can also be used as a single door to which the device 10 of the present invention can be installed.

As shown in FIGS. 1 and 5, the charging door 14 is attached to the converter 11 on a door truck 1 having wheels 16 running on tracks 17 laid on the floor 20 parallel to the rotation axis XX of the converter 11. attached to opposite sides. Reference numeral 18 indicates a bracket for fixing the charging door 14 to the door truck 1.

The device 10 of the present invention is located at the left end (first
As shown in FIG. 2, a long and narrow temperature measuring cart 3 is provided with a rotating arm 2 rotatably attached to a vertical rotating pin 4. The pivot pin 4 is chosen to be as close as possible to the left end 14AE of the charging door 14A (FIG. 1).

As shown in FIG. 2, the temperature sampling cart 3 is attached to the side of the door cart 1 opposite to the side on which the charging door 14 is attached, and is placed in a standby or storage position shown by the dotted chain line and in a temperature measuring position shown by the solid line. It rotates around the vertical pin 4 between the sampling position and the sampling position. When the temperature sampling trolley 3 is placed at the temperature sampling position, the temperature sampling trolley 3 is placed at the left end 14 of the charging door 14A.
It is planned in advance so that the rotating arm 3 is placed on the left side of the AE and waits a sufficient length to make the end face of the temperature measuring trolley 3 face the furnace opening 12.

As shown in Fig. 4, the temperature sampling cart 3 moves in synchronization with the door cart 1 (Fig. 1).
It is provided with a front wheel 8A and a rear wheel 8B for rotating between a temperature measurement sampling position and a standby position.
The front wheels 8A and the rear wheels 8B are each equipped with a steering mechanism that changes the direction of the rear wheels 8B in order to travel on the floor in an arc around the vertical pin 4. In order to rotate the truck 3, a drive device is provided to drive the front wheels 8A. (Not shown) As shown in FIGS. 5 and 6, the temperature sampling cart 3 is equipped with a sheath member 6 attached to the upper surface in the longitudinal direction, and the elongated rod-shaped temperature measurement rod 5 can be freely inserted into and removed from the sheath member 6. It's embedded. Specifically, the left end of the sheath member 6 is rotatably attached to the left end of the temperature sampling cart 3 by a hinge fitting 22, and the operating end of a hydraulic cylinder 21 is connected to the intermediate portion of the length. The opposite end of the hydraulic cylinder 21 is attached to the temperature sampling cart 3. A temperature measuring rod 5 having a telescopic structure attached to the sheath member 6 has a probe 7 attached to its left end. Although not shown, an appropriate drive mechanism for moving the temperature measuring rod 5 in and out of the sheath member 6 is provided.

In use, while the converter is blowing, the charging doors 14A, 14B are closed and the temperature measuring cart 3 is placed in a standby position (FIGS. 1 and 5). After blowing, the charging door 14B is opened to the left and the temperature sampling cart 3 is rotated to the temperature sampling position.As shown in FIGS. placed in Then, the temperature measuring rod 5 with the probe 7 attached to its free end is fed out from the sheath member 6 to the left and inserted into the furnace from the furnace opening 12.
When tilting the probe 7, touch the molten steel 19 in the furnace.
It is possible to take a sample by immersing it in water and measuring the temperature (Figures 3 and 7).

As described above, according to this invention, when the telescopic temperature measuring rod 5 is stored in the sheath member 6 and the temperature measuring sampling cart 3 is placed in the standby position, it does not interfere with other work such as alloy ferrosetting. Also, when the charging door 14A to which the temperature measuring sampling cart 3 is attached is opened, the temperature measuring device 10 is automatically separated from the front of the furnace during busy periods, so there is no need to move the temperature measuring sampling device during this time. Another advantage of this invention is that the structure is simple and compact, which helps to reduce costs.

[Brief explanation of the drawing]

Fig. 1 is a horizontal sectional view showing a converter equipped with the device of the present invention, Fig. 2 is a horizontal sectional view showing the initial stage of operation of the device of Fig. 1, and Fig. 3 is a usage state of the device of Fig. 1. 4 is an enlarged plan view of the main parts of the device in FIG. 1, FIG. 5 is a side sectional view showing the standby position of the device in FIG. 1, and FIG. 6 is an operation of the device in FIG. 1. FIG. 7 is a side sectional view showing the device of FIG. 1 in use. 1... Door trolley, 2... Rotating arm, 3... Temperature measuring trolley, 4... Rotating pin, 5... Temperature measuring rod, 6... Sheath member, 7... Probe, 8A, 8B... wheels, 10
... Device of the present invention, 11 ... Converter, 12 ... Furnace mouth, 13 ... Enclosure, 14 ... Charging door, 15 ... Edge, 16 ... Wheel, 17 ... Track, 18 ... Bracket, 19... Molten steel, 20...
...floor surface, 21...hydraulic cylinder, 22...hinge.

Claims (1)

[Scope of utility model registration request] It is mounted on a track laid on the floor parallel to the rotation axis of the converter, and a charging/charging section is installed on the side facing the converter.
A horizontal arm of a predetermined length is rotatably attached at one end to a point on the end of the door truck to which the door is attached, and a storage position adjacent to the front of the door truck and a charging door are opened to a temperature measurement sampling position. When placed, the elongated temperature sampling cart 3 rotates approximately 90 degrees around the one point and reciprocates in an arc between a temperature sampling position that faces approximately the center of the furnace mouth of the converter, and a temperature measurement and sampling trolley 3 at one end. The temperature measuring rod 5 has a telescopic structure, and the opposite end of the probe is inserted into and removed from the elongated sheath member on the temperature measuring cart, and the temperature measuring rod 5 is inserted into the furnace mouth from the temperature measuring sampling cart at the temperature sampling position. A converter temperature sampling device featuring: