Continuous temperature measuring method for temperature of molten steel in steel ladle
A technology of molten steel temperature and ladle, applied in the field of continuous temperature measurement of molten steel temperature in ladle, can solve the problems of burns, large consumption of temperature measuring probes, high labor intensity, etc., to achieve high temperature detection accuracy, reduce production costs, and increase production output Effect
Pending Publication Date: 2020-03-27
HUBEI POLYTECHNIC UNIV
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Problems solved by technology
[0004] The current temperature measurement method requires manual installation of galvanic probes and manual insertion of temperature measurement guns. It is not only labor-intensive and unsafe, but also consumes a large number of temperature measurement probes, resulting in high production costs. At the same time, due to the extremely high temperature of molten steel, Usually above 1600°C, the high-temperature radiation of molten steel is very strong, and steel slag may splash out during temperature measurement, which is prone to scald and burn accidents
In addition, since this method of temperature measurement is intermittent, the temperature needs to be measured every ten minutes or so. In addition to consuming a large number of temperature measuring probes, it is also impossible to accurately grasp the continuous change of molten steel temperature. The control accuracy of molten steel temperature Unable to meet online continuity requirements
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Embodiment 1
[0024] Such as figure 1 As shown, the present invention provides a continuous temperature measurement method for molten steel temperature in a ladle, comprising a ladle 1, a ventilating brick 3 is installed at the bottom of the ladle 1, a ladle slide 11 is installed at the bottom of the ladle 1, and the inside of the ventilating brick 3 There are ventilating brick air gaps 2 and ventilating brick air chambers 4, optical fibers 7 are installed inside the ventilating bricks 3, and the outside of the optical fibers 7 is sleeved with an air inlet pipe 6, and the bottom end of the air inlet pipe 6 is connected to the argon main pipe 8, The bottom end of the optical fiber 7 is connected with an infrared camera 9 after penetrating from the air inlet pipe 6, the surface of the optical fiber 7 and the air inlet pipe 6 is sealed by the pipe sealing port 5, and the top of the optical fiber 7 is located in the gas chamber 4 of the air-permeable brick. And the top of the optical fiber 7 is...
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Abstract
The invention discloses a continuous temperature measuring method for the temperature of molten steel in a steel ladle. When molten steel is poured into the steel ladle, a computer system starts the camera shooting system, an optical fiber arranged in an air chamber of an air brick collects infrared rays radiated by molten steel through an air gap of the air brick and the infrared rays are transmitted to an infrared camera for imaging; and the computer system analyzes the image transmitted by the optical fiber by using the infrared thermal image to obtain the temperature field distribution ofthe image and the maximum value of the temperature, and displays the maximum value of the temperature on a computer display screen of an operation room. The method is low in cost and good in safety, and meanwhile labor is saved; continuous temperature measurement is achieved, the temperature detection precision is high, the molten steel temperature change can be continuously detected, and the molten steel temperature detection precision can reach + / -1 DEG C; according to the method, continuous temperature measurement can be achieved, no influence is caused to production operation, independenttemperature measurement operation and temperature measurement time are not needed, the smelting period can be shortened by 5-8 minutes, the production cost is reduced, and the production yield is increased.
Description
technical field [0001] The invention relates to the technical field of metallurgical detection, in particular to a method for continuously measuring the temperature of molten steel in a ladle. Background technique [0002] Generally, after the molten steel is smelted in a converter or an electric furnace, the molten steel needs to be poured into the ladle for refining. The ladle is an important tool and container for storing, transporting and refining molten steel. The molten steel needs to reach a suitable temperature and composition to arrive. Continuous casting platform for pouring, therefore, molten steel temperature is an important parameter and assessment index for steelmaking and continuous casting. In general, since the temperature of molten steel will change during storage, transportation and refining, it is necessary to perform multiple temperature measurement operations on the molten steel in the ladle at different stages and time. [0003] Since the surface of t...
Claims
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IPC IPC(8): G01J5/00G01J5/48
CPCG01J5/004G01J5/48G01J2005/0077G01J5/485
Inventor 胡志刚
Owner HUBEI POLYTECHNIC UNIV