CN110669896B - Converter body multipoint temperature measurement method - Google Patents
Converter body multipoint temperature measurement method Download PDFInfo
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- CN110669896B CN110669896B CN201910857352.1A CN201910857352A CN110669896B CN 110669896 B CN110669896 B CN 110669896B CN 201910857352 A CN201910857352 A CN 201910857352A CN 110669896 B CN110669896 B CN 110669896B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention belongs to the technical field of temperature measurement of a converter body, and particularly relates to a converter body multipoint temperature measurement method, which comprises the following steps: trunnions (6) are fixedly installed on two sides of the converter body (1), a bearing seat (7) is arranged below each trunnion (6), the trunnions (6) are installed on the bearing seats (7), the bearing seats (7) are placed on a platform, and the converter body (1) can rotate for 360 degrees through the trunnions (6) on the two sides; a tapping hole temperature measuring point (2), a trunnion temperature measuring point (3), a furnace body temperature measuring point (4) and a furnace bottom temperature measuring point (5) are arranged on a converter body (1); measuring the temperature value of each temperature measuring point by using a handheld portable temperature measuring instrument and recording the temperature value; and counting and summarizing the measured temperature values of all temperature measuring points to obtain the temperature of the converter body, thereby completing a measuring period.
Description
Technical Field
The invention belongs to the technical field of temperature measurement of a converter body, and particularly relates to a multipoint temperature measurement method of the converter body.
Background
The method aims to solve the problem that corrosion is uneven due to scouring of steel, slag and oxygen in the smelting process because refractory materials are built in the converter under the existing converter smelting condition.
At present, slag splashing furnace protection and furnace repairing measures are adopted, so that a certain maintenance effect is achieved; however, the local thinning phenomenon of the refractory material in the converter still occurs, the weak part cannot be seen from the outside of the furnace shell by naked eyes under the influence of high-temperature smoke, and the weak part easily causes molten steel to penetrate out of the converter body, so that the converter is forced to be shut down for maintenance, the service life of the converter body is greatly influenced, and the smooth production is greatly influenced.
Disclosure of Invention
The invention aims to solve the defects of the existing measurement mode, and provides a converter body multipoint temperature measurement method which is simple and convenient to operate, easy to train and good in use effect, can realize real-time and standard measurement of the temperature of the converter body, provides an intuitive temperature state for operators, and performs prevention and control in advance; meanwhile, the method does not occupy production time, can be carried out simultaneously with the smelting process, and has stronger timeliness and effectiveness; the method can be applied to any converter and has the advantages of wide application range, high popularization value and the like.
In order to achieve the aim, the invention provides a converter body multipoint temperature measuring method, which comprises the following steps:
trunnions are fixedly arranged on two sides of the converter body, a bearing seat is arranged below the trunnions on each side, the trunnions are arranged on the bearing seats, the bearing seats are placed on the platform, and the converter body can rotate for 360 degrees through the trunnions on the two sides;
a tapping hole temperature measuring point, a trunnion temperature measuring point, a furnace body temperature measuring point and a furnace bottom temperature measuring point are arranged on the converter body;
measuring the temperature value of each temperature measuring point by using a handheld portable temperature measuring instrument and recording the temperature value;
and counting and summarizing the measured temperature values of all temperature measuring points to obtain the temperature of the converter body, thereby completing a measuring period.
As an improvement of the above technical solution, the temperature of the converter body includes: the temperature of the tapping hole temperature measuring point of the converter body, the temperature of the trunnion temperature measuring point of the converter body, the temperature of the furnace body temperature measuring point of the converter body and the temperature of the furnace body temperature measuring point of the converter body.
As one improvement of the above technical solution, the temperature values of the temperature measuring points are measured and recorded by using a handheld portable thermometer; the method specifically comprises the following steps:
when the converter rotates to 45 ℃, a handheld portable thermometer is utilized to measure the temperature within 30cm around the temperature measuring point of the steel tapping hole; measuring and obtaining the temperatures of a plurality of steel tapping holes, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a steel tapping hole temperature measuring point of the converter body;
when the converter rotates to 90 ℃, a hand-held portable temperature measuring instrument is utilized to measure the temperature within 20cm around the temperature measuring point of the trunnion; measuring and obtaining the temperatures of a plurality of trunnion temperature measuring points, counting the measured temperature values, recording and storing the highest temperature value as the temperature of the trunnion temperature measuring point of the converter body;
when the converter rotates to 0 degree or 360 degrees, a handheld portable temperature measuring instrument is utilized to measure the temperature within 30cm around a temperature measuring point of the converter body; measuring and obtaining the temperatures of a plurality of furnace bodies, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a furnace body temperature measuring point of the converter body;
when the converter rotates to 270 ℃, a handheld portable thermometer is utilized to measure the temperature within 20cm around a temperature measuring point at the bottom of the converter; and measuring and obtaining a plurality of furnace bottom temperature values, counting the plurality of measured temperature values, and recording and storing the highest temperature value as the temperature of the furnace bottom temperature measuring point of the converter body.
As an improvement of the above technical solution, the method further includes: and measuring the temperature of the converter body by adopting different frequencies according to different service periods of the converter.
As one improvement of the above technical solution, the temperature of the converter body is measured by adopting different frequencies according to different campaign periods of the converter; in particular, the amount of the solvent to be used,
in the early stage of the campaign of the converter, every 3 smelting periods of the converter are taken as a measuring time length, and the temperature of a converter body is obtained every 3 smelting periods of the converter;
according to the obtained temperature of the converter body, the temperature safety range values of the tapping hole temperature measuring points at the early and middle stages of the campaign are 200-350 ℃, the temperature safety range values of the trunnion temperature measuring point, the furnace body temperature measuring point and the furnace bottom temperature measuring point are all 150-300 ℃, if the temperature of any one temperature measuring point exceeds the corresponding temperature safety range value, the converter body is abnormal, maintenance measures need to be taken to stabilize the temperature of the converter body, then the temperature of one converter body is obtained by taking each 1 furnace smelting period interval as a measuring duration until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after the temperature is stabilized, the temperature of one converter body can be recovered to each 2 furnace smelting periods to obtain the temperature of one converter body;
in the later period of the campaign of the converter, the temperature of a converter body is obtained every 2 furnace smelting periods with the interval of 2 furnace smelting periods as a measuring time length;
according to the obtained temperature of the converter body, the temperature safety range value of the temperature measuring point of the steel tapping hole at the later stage of the furnace service is 250-400 ℃, and the temperature safety range values of the temperature measuring point of the trunnion, the temperature measuring point of the furnace body and the temperature measuring point of the furnace bottom are 200-one
350 ℃, if the temperature of any one of the temperature measuring points exceeds the corresponding temperature safety range value, the converter body is abnormal, maintenance measures need to be taken to stabilize the temperature of the converter body, then the temperature of the converter body is obtained with every 1 furnace smelting period interval as one measuring time length until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after stabilization, the temperature of the converter body can be recovered to every 2 furnace smelting periods to obtain the temperature of the converter body.
The invention has the advantages that:
the method can realize real-time and standard measurement of the temperature of the converter body, provide visual temperature state of the converter body for operators, and perform prevention and control in advance; meanwhile, the method does not occupy production time, can be carried out simultaneously with the smelting process, and has stronger timeliness and effectiveness.
Drawings
FIG. 1 is a schematic view of a converter body to which the multipoint temperature measurement method of the present invention is applied.
Reference numerals:
1. converter body 2 and tapping hole temperature measuring point
3. Trunnion temperature measuring point 4 and furnace body temperature measuring point
5. Furnace bottom temperature measuring point 6, trunnion
7. Bearing seat
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
The invention provides a multipoint temperature measurement method for a converter body, which solves the defects that a furnace lining is difficult to find after abnormal erosion and effective measures cannot be taken for maintenance in time; the method is simple and convenient to operate, convenient to execute and good in using effect.
The method specifically comprises the following steps:
trunnions are fixedly installed on two sides of the converter body 1, a bearing seat 7 is arranged below the trunnion 6 on each side, the trunnion 6 is installed on the bearing seat 7, the bearing seat 7 is placed on a platform, the converter body 1 realizes 360-degree rotation through the trunnions 6 on the two sides, and as shown in fig. 1, the forward rotation of the converter is assumed to be a positive direction, namely, the converter rotates outwards perpendicular to a paper surface;
a tapping hole temperature measuring point 2, a trunnion temperature measuring point 3, a furnace body temperature measuring point 4 and a furnace bottom temperature measuring point 5 are arranged on the converter body 1;
measuring the temperature value of each temperature measuring point by using a handheld portable temperature measuring instrument and recording the temperature value; in particular, the amount of the solvent to be used,
when the converter rotates to 45 ℃, a handheld portable thermometer is utilized to measure the temperature within 30cm around the temperature measuring point of the steel tapping hole; measuring and obtaining the temperatures of a plurality of steel tapping holes, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a steel tapping hole temperature measuring point of the converter body;
when the converter rotates to 90 ℃, a hand-held portable temperature measuring instrument is utilized to measure the temperature within 20cm around the temperature measuring point of the trunnion; measuring and obtaining the temperatures of a plurality of trunnion temperature measuring points, counting the measured temperature values, recording and storing the highest temperature value as the temperature of the trunnion temperature measuring point of the converter body;
when the converter rotates to 0 degree or 360 degrees, a handheld portable temperature measuring instrument is utilized to measure the temperature within 30cm around a temperature measuring point of the converter body; measuring and obtaining the temperatures of a plurality of furnace bodies, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a furnace body temperature measuring point of the converter body;
when the converter rotates to 270 ℃, a handheld portable thermometer is utilized to measure the temperature within 20cm around a temperature measuring point at the bottom of the converter; and measuring and obtaining a plurality of furnace bottom temperature values, counting the plurality of measured temperature values, and recording and storing the highest temperature value as the temperature of the furnace bottom temperature measuring point of the converter body.
The temperature of the converter body comprises: the temperature of the tapping hole temperature measuring point of the converter body, the temperature of the trunnion temperature measuring point of the converter body, the temperature of the furnace body temperature measuring point of the converter body and the temperature of the furnace body temperature measuring point of the converter body.
Counting and summarizing the measured temperature values of all temperature measuring points to obtain the temperature of the converter body, and finishing a measuring period; the measurement cycle can be completed and implemented within one-furnace smelting cycle of the converter.
The method further comprises the following steps: measuring the temperature of the converter body by adopting different frequencies according to different service periods of the converter; in particular, the amount of the solvent to be used,
in the early stage of the campaign of the converter (the new converter starts smelting till the campaign reaches 1/4) and the middle stage (the campaign of the converter is 1/4-3/4), the temperature of a converter body is obtained every 3 smelting periods by taking the interval of every 3 smelting periods as a measuring time; namely, in a first furnace smelting period, completing a measurement period to obtain the temperature of the converter body; after the smelting period of the furnace 3, completing a measurement period in the smelting period of a fourth furnace to obtain the temperature of the converter body; and so on;
according to the obtained temperature of the converter body, the temperature safety range values of the tapping hole temperature measuring points at the early and middle stages of the furnace service are 200-350 ℃, the temperature safety range values of the trunnion temperature measuring point, the furnace body temperature measuring point and the furnace bottom temperature measuring point are 150-300 ℃, if the temperature of any one temperature measuring point exceeds the corresponding temperature safety range value, the converter body is abnormal, maintenance measures need to be taken to stabilize the temperature of the converter body, and then the temperature of one converter body is obtained by taking each 1 furnace smelting period interval as a measurement duration; namely, in a first furnace smelting period, completing a measurement period to obtain the temperature of the converter body; completing a measurement period in a second furnace smelting period to obtain the temperature of the converter body; the process is repeated until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after the temperature is stabilized, the temperature can be restored to every 2 smelting periods to obtain the temperature of one converter body;
in the later period of the campaign of the converter (the campaign of the converter is 3/4 till the end of the campaign), the temperature of a converter body is obtained every 2 smelting periods by taking the smelting period interval of each 2 furnaces as a measuring time length; namely, in a first furnace smelting period, completing a measurement period to obtain the temperature of the converter body; after the smelting period of the converter 2, completing a measurement period in a smelting period of a third furnace to obtain the temperature of the converter body; and so on;
according to the obtained temperature of the converter body, the temperature safety range value of the temperature measuring point of the steel tapping hole at the later stage of the campaign is 250-; namely, in a first furnace smelting period, completing a measurement period to obtain the temperature of the converter body; completing a measurement period in a second furnace smelting period to obtain the temperature of the converter body; repeating the steps until the temperature of the converter body is reduced to be within 350 ℃ and stabilized, and then recovering to every 2 furnace smelting periods to obtain the temperature of one converter body;
or when the temperature of the converter body rises obviously and the temperature difference between two adjacent recorded data is more than 50 ℃, judging that the converter is abnormal, the lining is seriously eroded and the lining is seriously thinned, adopting maintenance measures to stabilize the temperature of the converter body, and then taking the smelting period interval of every 1 furnace as a measurement duration to obtain the temperature of the converter body; namely, in a first furnace smelting period, completing a measurement period to obtain the temperature of the converter body; completing a measurement period in a second furnace smelting period to obtain the temperature of the converter body; and repeating the steps until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after the temperature is stabilized, the temperature can be restored to every 2 smelting periods to obtain the temperature of one converter body.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (3)
1. A converter body multipoint temperature measurement method is characterized by comprising the following steps:
trunnions (6) are fixedly installed on two sides of the converter body (1), a bearing seat (7) is arranged below each trunnion (6), the trunnions (6) are installed on the bearing seats (7), the bearing seats (7) are placed on a platform, and the converter body (1) can rotate for 360 degrees through the trunnions (6) on the two sides;
a tapping hole temperature measuring point (2), a trunnion temperature measuring point (3), a furnace body temperature measuring point (4) and a furnace bottom temperature measuring point (5) are arranged on a converter body (1);
measuring the temperature value of each temperature measuring point by using a handheld portable temperature measuring instrument and recording the temperature value;
specifically, when the converter rotates to 45 degrees, a handheld portable thermometer is utilized to measure the temperature within 30cm around a tapping hole temperature measuring point (2); measuring and obtaining the temperatures of a plurality of steel tapping holes, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a steel tapping hole temperature measuring point (2) of the converter body;
when the converter rotates to 90 ℃, a hand-held portable temperature measuring instrument is utilized to measure the temperature within 20cm around the trunnion temperature measuring point (3); measuring and obtaining the temperatures of a plurality of trunnion temperature measuring points, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a trunnion temperature measuring point (3) of the converter body;
when the converter rotates to 0 degree or 360 degrees, a handheld portable temperature measuring instrument is utilized to measure the temperature within 30cm around a temperature measuring point (4) of the converter body; measuring and obtaining the temperatures of a plurality of furnace bodies, counting the measured temperature values, recording and storing the highest temperature value as the temperature of a furnace body temperature measuring point (4) of the converter body;
when the converter rotates to 270 ℃, a handheld portable temperature measuring instrument is utilized to measure the temperature within 20cm around a furnace bottom temperature measuring point (5); measuring and obtaining a plurality of furnace bottom temperature values, counting the plurality of measured temperature values, recording and storing the highest temperature value as the temperature of a furnace bottom temperature measuring point (5) of the converter body;
counting and summarizing the measured temperature values of all temperature measuring points to obtain the temperature of the converter body, and finishing a measuring period;
the temperature of the converter body (1) comprises: the temperature of a tapping hole temperature measuring point (2) of the converter body (1), the temperature of a trunnion temperature measuring point (3) of the converter body (1), the temperature of a furnace body temperature measuring point (4) of the converter body (1) and the temperature of a furnace bottom temperature measuring point (5) of the converter body (1).
2. The method of claim 1, further comprising: and measuring the temperature of the converter body by adopting different frequencies according to different service periods of the converter.
3. The method according to claim 2, characterized in that the temperature of the converter body is measured with different frequencies according to different campaign periods of the converter; in particular, the amount of the solvent to be used,
in the early stage of the campaign of the converter, every 3 smelting periods of the converter are taken as a measuring time length, and the temperature of a converter body is obtained every 3 smelting periods of the converter;
according to the obtained temperature of the converter body, the temperature safety range value of the tapping hole temperature measuring point (2) in the early and middle stages of the campaign is 200-350 ℃, the temperature safety range values of the trunnion temperature measuring point (3), the furnace body temperature measuring point (4) and the furnace bottom temperature measuring point (5) are all 150-300 ℃, if the temperature of any one temperature measuring point exceeds the corresponding temperature safety range value, the converter body is abnormal, maintenance measures need to be taken to stabilize the temperature of the converter body, then the temperature of the converter body is obtained by taking each furnace smelting period interval as a measuring time interval until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after the temperature is stabilized, the temperature of the converter body can be recovered to each furnace smelting period of 2 to obtain the temperature of the converter body;
in the later period of the campaign of the converter, the temperature of a converter body is obtained every 2 furnace smelting periods with the interval of 2 furnace smelting periods as a measuring time length;
according to the obtained temperature of the converter body, the temperature safety range value of the tapping hole temperature measuring point (2) at the later stage of the campaign is 250-400 ℃, the temperature safety range values of the trunnion temperature measuring point (3), the furnace body temperature measuring point (4) and the furnace bottom temperature measuring point (5) are all 200-350 ℃, if the temperature of any one temperature measuring point exceeds the corresponding temperature safety range value, the converter body is abnormal, maintenance measures need to be taken to stabilize the temperature of the converter body, then the temperature of one converter body is obtained by taking each 1 furnace smelting period interval as a measuring time length until the temperature of each temperature measuring point of the converter body is reduced to the corresponding temperature safety range, and after the temperature is stabilized, the temperature of one converter body can be recovered to each 2 furnace smelting periods to obtain the temperature of one converter body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857352.1A CN110669896B (en) | 2019-09-11 | 2019-09-11 | Converter body multipoint temperature measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857352.1A CN110669896B (en) | 2019-09-11 | 2019-09-11 | Converter body multipoint temperature measurement method |
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| CN110669896A CN110669896A (en) | 2020-01-10 |
| CN110669896B true CN110669896B (en) | 2021-10-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114167913A (en) * | 2021-12-09 | 2022-03-11 | 佳焱(青岛)科技服务有限公司 | Intelligent furnace lining temperature control system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3018663A (en) * | 1956-09-13 | 1962-01-30 | United States Steel Corp | Furnace lining temperature-thickness measuring apparatus |
| CN101514896A (en) * | 2008-09-02 | 2009-08-26 | 中冶华天工程技术有限公司 | Convertor lining thickness online testing method and device thereof |
| CN205133651U (en) * | 2015-10-15 | 2016-04-06 | 杭州谱诚泰迪实业有限公司 | Steelmaking converter stove outer covering temperature and tapping monitoring set composite |
| CN105803153A (en) * | 2016-04-05 | 2016-07-27 | 钢铁研究总院 | Real-time online monitoring system and method for safety of refectory material of converter lining |
| CN106500850A (en) * | 2016-12-28 | 2017-03-15 | 中冶京诚工程技术有限公司 | Converter bottom outer wall temperature monitoring device |
| CN106868249A (en) * | 2017-03-03 | 2017-06-20 | 钢铁研究总院 | The decision-making system and method for the metallurgical furnace furnace lining safety based on temperature pre-warning mechanism |
-
2019
- 2019-09-11 CN CN201910857352.1A patent/CN110669896B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3018663A (en) * | 1956-09-13 | 1962-01-30 | United States Steel Corp | Furnace lining temperature-thickness measuring apparatus |
| CN101514896A (en) * | 2008-09-02 | 2009-08-26 | 中冶华天工程技术有限公司 | Convertor lining thickness online testing method and device thereof |
| CN205133651U (en) * | 2015-10-15 | 2016-04-06 | 杭州谱诚泰迪实业有限公司 | Steelmaking converter stove outer covering temperature and tapping monitoring set composite |
| CN105803153A (en) * | 2016-04-05 | 2016-07-27 | 钢铁研究总院 | Real-time online monitoring system and method for safety of refectory material of converter lining |
| CN106500850A (en) * | 2016-12-28 | 2017-03-15 | 中冶京诚工程技术有限公司 | Converter bottom outer wall temperature monitoring device |
| CN106868249A (en) * | 2017-03-03 | 2017-06-20 | 钢铁研究总院 | The decision-making system and method for the metallurgical furnace furnace lining safety based on temperature pre-warning mechanism |
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