CN-224231212-U - Detection system for testing gas of ladle bottom blowing system during hot repair

CN224231212UCN 224231212 UCN224231212 UCN 224231212UCN-224231212-U

Abstract

The utility model discloses a detection system for testing gas of a ladle bottom blowing system in hot repair, wherein a ladle is horizontally placed on the ground of a steel mill, the bottom of the ladle is vertical to the ground, a first ladle argon blowing nozzle is arranged on the side wall of the ladle, the first ladle argon blowing nozzle is used for testing gas of the ladle through the first ladle argon blowing nozzle in hot repair of the ladle, the detection system comprises a gas testing tube, a gas flow meter and a gas testing platform, the gas testing platform is arranged close to the position of the ladle in hot repair, and is used for connecting the gas testing tube on the first ladle argon blowing nozzle of the ladle by workers through the gas testing platform so as to facilitate gas testing.

Inventors

LI XIAOJUN
LIANG SHAOPENG
XUE DONGHAI
CHEN MINHONG
LIU CHUNTAO
GAO XIAOPENG
WANG ZILU

Assignees

陕西龙门钢铁有限责任公司

Dates

Publication Date: 20260512
Application Date: 20250610

Claims (5)

1. The detection system for testing the ladle bottom blowing system during hot repair is characterized in that the ladle (12) is horizontally placed on the ground of a steelworks, and the bottom of the ladle (12) is vertical to the ground, a first ladle argon blowing nozzle (10) is arranged on the side wall of the ladle (12), and the first ladle argon blowing nozzle (10) is used for testing the ladle (12) through the first ladle argon blowing nozzle (10) during hot repair of the ladle (12); The detection system includes: one end of the test tube is communicated with the ladle (12) through the first ladle argon blowing nozzle (10) during hot repair, and the other end of the test tube is communicated with an external air source; The gas flow meter is arranged on the gas testing tube and is used for detecting the flow of the gas passing through the gas testing tube; The gas testing platform (11) is arranged close to the position of the ladle (12) during hot repair and is used for enabling a worker to connect the gas testing pipe to the first ladle argon blowing nozzle (10) of the ladle (12) by using the gas testing platform (11), so that gas testing is facilitated; the gas test platform (11) comprises: The steel ladle argon blowing device comprises a standing table top, wherein the standing table top consists of a base table top (13) and two extending table tops (14), the base table top (13) is a cuboid or square table top close to the bottom of a steel ladle (12), the two extending table tops (14) are respectively arranged on two sides of the steel ladle (12), the two extending table tops (14) are integrally connected with the base table top (13), and extend from the bottom of the steel ladle (12) to the top of the steel ladle (12), so that a worker stands on the extending table top (14) to connect a gas tube to a first steel ladle argon blowing nozzle (10).
2. A system for testing a ladle bottom blowing system during hot repair according to claim 1, wherein two of said extension mesas (14) extend to a position adjacent to the first ladle argon blowing nozzle (10).
3. A system for testing a ladle bottom blowing system during hot repair according to claim 1, wherein the two extension mesas (14) are of equal length.
4. The system for detecting the test gas of the ladle bottom blowing system during hot repair according to claim 1, wherein the support legs are arranged below the test gas platform (11), an escalator is arranged on one side of the test gas platform (11), and a railing is arranged at the edge of the test gas platform (11).
5. The system for detecting the test gas of the ladle bottom blowing system during hot repair according to claim 1, wherein the height h=a-1 of the test gas platform (11) is the diameter of the ladle (12), and the height a is meter.

Description

Detection system for testing gas of ladle bottom blowing system during hot repair Technical Field The utility model belongs to the field of ladle bottom blowing technology in the ferrous metallurgy industry, and particularly relates to a detection system for testing gas of a ladle bottom blowing system during hot repair. Background In ferrous metallurgy production, ladle bottom blowing is a key process, and the ladle bottom blowing is used for homogenizing molten steel temperature and components by blowing gas into the bottom of a ladle, removing impurities and improving molten steel quality. Accurate detection of ladle bottom blowing effect is important to guarantee casting blank quality. In the converter steelmaking process, referring to GB/T34485-2017, a ladle bottom blowing system needs to meet the following technical requirements that the air supply pressure range is 0.4-0.6MPa, the air permeability of a single air brick is more than or equal to 50L/min cm 2, and the pipeline leakage rate is less than or equal to 3%/h. The traditional detection method adopts a visual inspection method (for observing the fluctuation of the liquid level of the steel) and an acoustic judgment method (for listening to the flowing sound of the gas), but the traditional detection method lacks quantitative judgment standards, and mainly relies on post workers to judge the bottom blowing condition by means of visual observation and auditory perception. The concrete operation is to test gas by using 2 pipelines at the bottom of the ladle, but 2 pipelines at the side wall of the ladle are used for normal blowing in production. Because of the lack of objective standards, workers at different positions have differences in judgment standards, so that the gas quantity measurement is inaccurate. Moreover, the pipe is difficult to detect when a tiny leakage point exists. Meanwhile, as the positions of 2 pipelines on the side wall of the steel ladle are too high, high-altitude gas test operation cannot be performed, and the gas test result cannot ensure good bottom blowing after on-line. Therefore, the detection method in the prior art is high in subjectivity, and due to the lack of quantization standards, the bottom blowing effect is inaccurate in judgment, and the bottom blowing quality cannot be accurately controlled. Secondly, the gas test pipeline is inconsistent with the actual use pipeline, and 2 pipelines on the side wall of the steel ladle cannot test gas, so that the bottom blowing effect is difficult to guarantee after the steel ladle is put on line, and the casting blank quality risk is increased. In addition, the aerial work test gas has potential safety hazards. Disclosure of utility model The utility model aims to provide a detection system for testing gas of a ladle bottom blowing system during hot repair, which is used for solving the problems that the subjectivity of testing gas during hot repair is strong, quantification standards are lacking, and 2 pipelines on the side wall of a ladle cannot test gas. The utility model adopts the following technical scheme that the steel ladle bottom blowing system gas testing system comprises a steel ladle bottom blowing system, a steel ladle, a first steel ladle argon blowing nozzle, a second steel ladle argon blowing nozzle, a first steel ladle argon blowing nozzle and a second steel ladle argon blowing nozzle, wherein the steel ladle is horizontally arranged on the ground of a steel mill, and the bottom of the steel ladle is vertical to the ground; The detection system comprises: One end of the test tube is communicated with the steel ladle through the first steel ladle argon blowing nozzle during hot repair, and the other end of the test tube is communicated with an external air source; the gas flow meter is arranged on the gas testing tube and is used for detecting the flow of the gas passing through the gas testing tube; the gas testing platform is arranged close to the position of the ladle during hot repair and is used for connecting a gas testing pipe on the first ladle argon blowing nozzle of the ladle by a worker through the gas testing platform, so that gas testing is facilitated; the gas testing platform comprises: The steel ladle argon blowing device comprises a standing table top, wherein the standing table top consists of a base body table top and two extension table tops, the base body table top is a cuboid or square table top close to the bottom of a steel ladle, the two extension table tops are respectively arranged on two sides of the steel ladle, the two extension table tops are integrally connected with the base body table top and extend from the bottom of the steel ladle to the top of the steel ladle, and further a worker stands on the extension table top to connect a gas testing tube on a first steel ladle argon blowing nozzle. The beneficial effects of the utility model are as follows: The utility model can realize quantification of flow inspection standar