KR200158865Y1 - Sub-sleeve type probe of sub-lance - Google Patents

Abstract

The present invention is to transfer the tar generated from the branch of the sub-sleeve probe to the outside of the sub-sleeve during the dynamic measurement by using the sub-lance equipment during the drilling of the converter. The present invention relates to a sub-sleeve probe of a sublance having a tar discharge hole that can be easily discharged, comprising a sub-lance body and a sub-sleeve probe formed as a sub sleeve and a probe, wherein the inside of the probe is formed of a cylindrical branch pipe. The holder is fitted with a connector and a compensating wire in close installation. The thermocouple is installed at the lower end of the probe. The upper part of the probe is formed of a cylindrical branch tube and the inner diameter is somewhat larger than the outer diameter of the probe. Sub-sleeve is to be installed, but the top and bottom ends of the sub-sleeve are inserted into the fixing ring made of paper material, and the bottom of the sub-sleeve A funnel portion located at the lower front end of the lance main body is of a tar discharge hayeoseo a through hole forming a plurality of holes having a tar discharge, characterized by sub-sleeve composed of sub lance probe of the outer and inner sub-sleeve.

Description

Subsilicon probe of sublance with tar discharge hole

The present invention is to transfer the tar generated from the branch pipe of the sub-sleeve probe to the outside of the sub-sleeve during the dynamic measurement by using the sub-lance equipment during the blowing operation of the converter. A sub-sleeve probe of a sub-lance having a tar discharge name that can be easily discharged. The holder is formed so that tar generated in the probe branch pipe due to high molten steel temperature during dynamic measurement does not flow into the holder. It is a sub-sleeve probe that protects internally mounted compensation wires and connectors, increases facility utilization, and improves productivity, quality and materials.

In the steelmaking process of the steel mill, dynamic control using a sub lance facility is performed during the drilling operation to receive the molten steel temperature and carbon content information necessary for the determination of the end point, and after finishing the measurement, the end point sublance is measured to measure the end component and temperature. The team checks the measured and measured values, judges whether the class is attended, and performs the taping operation. During the tapping operation, the demand is adjusted for the target to transfer the subsequent process.

The converter's sub lance equipment is a facility to check the temperature and components by attaching the measuring probe to the tip of the main body of the sub lance during the drilling and after the completion of the drilling. A series of processes, such as recovery, are done by automated equipment.

As shown in FIG. 5 by hot molten steel and slag when the sub lance is conventionally deposited on the converter, the body is now attached to the sub lance body 10 and also by burnout and shrinkage expansion of the holder. Bending of the product caused a problem in the normal operation of the sub lance equipment, and it was necessary to turn the main body when attaching it now, to perform the removal and welding of the present. When the connector is burned out, the replacement and maintenance work should be carried out separately. In order to prevent the bending of the main body, the centering work is frequently performed.

This series of problems uses a separate sub sleeve in the form of a paper tube on the main body to solve the operation of the sub-Lance facility, but when the sub-sleeve type probe is deposited on the hot molten steel, Since it is not discharged to the outside by the closed sub sleeve and is inserted into the inside of the sub lance holder and is attached to the compensation wire and the connector mounted inside the holder, it is impossible to operate normally due to the grounding of the wire due to tar. As the holders need to be replaced frequently, there are problems such as productivity and quality deterioration, weight of work load and increase of material usage due to lower operation rate and measurement success rate of the sub lance facility.

The present invention has been made to solve all the problems of the conventional sub-sleeve probe as described above, the discharge of tar penetrating the inside and outside of the sub-sleeve in the funnel portion located in the front end portion of the sub-lance main body to which the sub sleeve and the probe is coupled When measuring molten steel temperature and components using a subland by forming a plurality of molten holes, it is possible to easily discharge tar generated in the branch pipe of the sub-sleeve probe by the hot molten steel to the outside of the sub-sleeve. It is an object of the present invention to provide a sub-lance sub-sleeve probe with a tar discharge hole that protects and improves productivity and quality, reduces workload, and saves materials.

1 is a perspective view of an example of a sub-sleeve probe of the present invention

Figure 2 is a cross-sectional view of an example of the sub-sleeve probe of the present invention

3 is an extract of the present invention,

(a) degree

(b) is a cross-sectional view taken along the line A-A in (a).

4 is an excerpt of the sub-sleeved probe,

(a) is a state diagram where a measuring probe is mounted on the tip of the main body of the sub lance.

(b) is a partial excerpt showing the holder portion

5 is an exemplary view of the state attached to the sub lance body

Explanation of symbols for main parts of the drawings

10: sub lance main body 20: sub slab

30 probe 31 holder

32: connector 33: compensation lead

34: thermocouple 40: retaining ring

50: discharge hole

The subsleeve probe of the present invention will be described in detail with reference to the accompanying drawings.

A sub-sleeve type probe formed of the sub lance body 10, the sub sleeve 20, and the probe 30 is configured, but the connector 32 and the compensation lead 33 are formed inside the probe 30 formed of a cylindrical branch pipe. The holder 31 is mounted in close contact with each other, and a thermocouple 34 for temperature measurement is mounted at the lower end thereof. The upper portion of the probe 30 is mounted with a sub sleeve 20 made of a cylindrical paper tube whose inner diameter is slightly larger than the outer diameter of the probe 30, and closely coupled to the probe 30 at the lower end of the sub sleeve 20. Fixing ring 40 of the tube material is inserted.

Located in the lower end of the sub sleeve 20, the lower end of the sub land main body 10 where the upper end of the probe 30 is formed in a funnel shape that gradually expands the outer diameter upward, the sub funnel-shaped sub A plurality of tar discharge holes 50 are formed in the sub sleeve 20 so that the space formed by the lower end of the lance body 10 and the sub sleeve 20 communicate with the outside.

Tar discharge holes 50 formed in the lower end of the sub-silicon 20 is not limited to the number, it is preferable to form about four to be symmetrically by dividing the circumferential cross-section, and formed about 2mm in diameter It is preferable to form the lower portion of the sublance main body 10 as compared to the boundary line of the upper end side of the inclined surface forming the funnel of the sub sleeve 20.

In addition, the tar discharge hole 50 has the same angle as the inclination angle of the funnel portion located on the lower end of the sub-lance main body 10 or formed at an upward angle within a range of 30 ° to 90 °, that is, horizontal It is more efficient than forming in a state.

This invention is used in the temperature measurement work in the same manner as the conventional method after the sub-sleeve probe is automatically supplied by the automated sub-lance and mounted on the holder 31 of the sub-lance body 10, the molten steel temperature Tar is easily discharged through the tar discharge hole 50 formed in the sub-sleeve 20, the tar generated in the sub-sleeve probe formed mainly of the branch pipe.

The sub-sleeve probe of the present invention prevents tar from penetrating into the holder, thereby protecting the holder, the compensating wire and the connector from tar, improving productivity and quality, as well as reducing the workload and material savings. Practical to obtain a great and useful design.

Claims (1)

In the sub-sleeve probe formed of the sub lance body 10, the sub sleeve 20, and the probe 30, the probe 30 formed of the cylindrical branch pipe has a connector 32 and a compensation lead 33 therein. The holder 31 is mounted in close contact with the thermocouple (Thermo-Couple) 34 is mounted on the lower end thereof, and the inner diameter of the upper portion of the probe 30 is the outer diameter of the probe 30. Mounting the sub sleeve 20 made of a larger cylindrical tube, the lower end of the sub sleeve 20 is inserted into the fixing ring 40 of the tube material to be tightly coupled to the probe 30, the sub sleeve The inside of the lower end of the 20 is formed in a funnel shape in which the outer diameter gradually expands a predetermined section of the lower end of the sub-lance main body 10 where the upper end of the probe 30 meets, but the space formed by the funnel portion outside A number of subsleeves 20 to communicate with Tar discharge sub-sleeve-shaped probe of a sub-lance having a tar discharge hole, characterized by hayeoseo configured to form a hole (50).