Off-line detection device for continuous casting aerial fog nozzle

Abstract

The utility model belongs to the technical field of metallurgical equipment, and particularly relates to a continuous casting aerial fog nozzle off-line detection device which comprises an air pipe, a water pipe, a spraying pipe and a blank for detection. The air pipe and the water pipe are respectively communicated with the spraying pipe through different interfaces; the water pipe is used for inputting high-pressure gas to the spraying pipe; the air pipe is used for inputting spraying water to the spraying pipe; the multiple nozzles are arranged on the side, away from the water pipe and the gas pipe, of the spraying pipe from top to bottom, and spraying water and high-pressure gas are sprayed out through the nozzles after being mixed in the spraying pipe; and the blank for detection is arranged on one side opposite to the nozzle. During production, a nozzle to be used is mounted on the spraying pipe, cooling water in the nozzle impacts the surface of the blank for detection by simulating a real casting blank cooling process in a working state, and finally, whether the nozzle is blocked or not is judged by observing a sprayed area of the blank for detection, so that the nozzle can be replaced in time before production. The device can conveniently and quickly detect the blockage condition of the nozzle of the continuous casting machine, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and in particular relates to an offline detection device for a continuous casting aerosol nozzle. Background Art

[0002] In the steel production process, continuous casting aerosol nozzles are critical components used to provide quantitative water supply to cool the ingot according to process technical parameters. However, due to the harsh working environment, impurities such as iron oxide scale, debris, sludge, and scale often accumulate in the spray pipe and the air inlet pipe, causing the nozzle to be blocked.

[0003] At present, it is usually necessary to remove the nozzle during downtime for cleaning and then use it again. However, the prior art does not provide a device for offline inspection of aerosol nozzles. Therefore, if the nozzle is damaged or not cleaned thoroughly, it is necessary to stop the machine to replace the nozzle or re-clean it, which not only wastes time and increases production costs, but also seriously reduces work efficiency.

[0004] However, there is currently a lack of technical devices for off-line detection of aerosol nozzles, and the state of the aerosol nozzles cannot be monitored in real time during the process. Therefore, the present utility model is proposed. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides an offline detection device for continuous casting aerosol nozzles. The device installs the nozzle to be used in production on the spray pipe, and simulates the actual cooling process of the casting blank under the working state, so that the cooling water in the nozzle impacts the surface of the detection blank. Finally, by observing the sprayed area of ​​the detection blank, it is determined whether the nozzle is blocked so that it can be replaced in time before production.

[0006] In order to achieve the above-mentioned purpose, the utility model discloses an offline detection device for a continuous casting aerosol nozzle, comprising an air pipe, a water pipe, a spray pipe and a detection blank; the air pipe and the water pipe are connected to the spray pipe through different interfaces respectively; the water pipe is used to input high-pressure gas into the spray pipe; the air pipe is used to input spray water into the spray pipe; a plurality of nozzles are arranged on a side of the spray pipe away from the water pipe and the air pipe from top to bottom, and the spray water and the high-pressure gas are mixed in the spray pipe and then sprayed out through the nozzle; the sprayed surface of the detection blank faces the nozzle.

[0007] As a preferred technical solution, the water pipe is provided with a first ball valve, a first pressure transmitter and an electromagnetic flowmeter.

[0008] As a preferred technical solution, a second ball valve and a second pressure transmitter are provided on the air pipe.

[0009] As a preferred technical solution, it also includes a detection frame arranged on one side of the spray pipe and away from the detection blank.

[0010] As a preferred technical solution, the area of ​​the detection blank is larger than the spraying area of ​​the nozzle.

[0011] As a preferred technical solution, a fixing device is provided at the bottom of the detection blank.

[0012] The utility model has the following advantages and technical effects:

[0013] The offline detection device for continuous casting aerosol nozzles in the utility model is to install the nozzles to be used in production on the spray pipe, and simulate the actual cooling process of the casting blank under the working state, so that the cooling water in the nozzles impacts the surface of the detection blank, and finally observes the sprayed area of ​​the detection blank to determine whether the nozzle is blocked, so that it can be replaced in time before production. The device can conveniently and quickly detect the blockage of the continuous casting machine nozzle, which not only greatly saves working time, but also effectively improves work efficiency and increases the output of the steel plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the offline detection device for continuous casting aerosol nozzle of the utility model.

[0015] In the figure: 1. water pipe; 11. first ball valve; 12. first pressure transmitter; 13. electromagnetic flowmeter; 2. air pipe; 21. second ball valve; 22. second pressure transmitter; 3. spray pipe; 4. nozzle; 5. detection blank; 6. fixing device; 7. detection frame. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0017] like Figure 1 As shown, the utility model discloses an offline detection device for a continuous casting aerosol nozzle, comprising a water pipe 1, an air pipe 2, a spray pipe 3 and a detection blank 5; the device installs a nozzle 4 to be used in production on the spray pipe 3, and simulates the actual cooling process of the casting blank under the working state, so that the cooling water in the nozzle 4 impacts the surface of the detection blank 5, and finally determines whether the nozzle 4 is blocked by observing the sprayed area of ​​the detection blank 5, so that it can be replaced in time before production.

[0018] The air pipe 2 and the water pipe 1 are connected to the spray pipe 3 through different interfaces. The water pipe 1 is used to input high-pressure gas of specified pressure to the spray pipe 3; the water pipe 1 is provided with a first ball valve 11, a first pressure transmitter 12 and an electromagnetic flowmeter 13; the first ball valve 11 is used to control the flow of cooling water in the water pipe 1 and display it through the electromagnetic flowmeter 13, and the first pressure transmitter 12 is used to control the pressure of the water flow. The air pipe 2 is used to input spray water of specified parameters to the spray pipe 3; the air pipe 2 is provided with a second ball valve 21 and a second pressure transmitter 22 to control the flow and pressure of the high-pressure gas respectively.

[0019] The plurality of nozzles 4 are arranged from top to bottom on a side of the spray pipe 3 away from the water pipe 1 and the air pipe 2 , and the spray water and the high-pressure gas are mixed in the spray pipe 3 and then sprayed out through the nozzles 4 .

[0020] The detection blank 5 is arranged on the side facing the nozzle, and the nozzle continuously sprays the detection blank 5 during the detection process; the number of nozzles, distribution density, and spray angles that affect the spraying effect can be observed through the spraying surface of the detection blank 5, so that adjustments can be made easily. Therefore, the area of ​​the detection blank 5 is larger than the spraying area of ​​the nozzle 4. Since the aerosol sprayed from the nozzle 4 carries a high pressure, the detection blank 5 will tilt or shift after being impacted for a long time, and cannot accurately display the spraying state of the cold-cast blank under normal working conditions. Therefore, a fixing device 6 is provided at the bottom of the detection blank 5.

[0021] Preferably, the offline detection device for continuous casting aerosol nozzle of the utility model also includes a detection frame 7 arranged on one side of the spray pipe and away from the detection blank, which is to facilitate the measurement of the spray angle (the fan angle formed by the spray) of the nozzle on the spray surface of the detection blank 5. The size of the spray angle directly affects the coverage area, uniformity and penetration of the mist. By detecting the spray angle, the spray area of ​​the spray on the spray surface can be known, thereby ensuring the uniformity and effect of atomization and realizing fast and effective detection.

[0022]

[0023] After installing the offline detection device for continuous casting aerosol nozzles, the cooling effect after going online can be predicted by adjusting the number, distribution density, spray angle, etc. of nozzles, thereby ensuring the quality of the ingots while achieving efficient and stable production of the casting machine, greatly saving working time, and effectively improving work efficiency and increasing the output of the steel plant.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An offline detection device for continuous casting aerosol nozzles, characterized in that: It includes a water pipe, an air pipe, a spray pipe and a detection blank; the air pipe and the water pipe are connected to the spray pipe through different interfaces respectively; the water pipe is used to input high-pressure gas to the spray pipe; the air pipe is used to input spray water to the spray pipe; a plurality of nozzles are arranged on a side of the spray pipe away from the water pipe and the air pipe from top to bottom, and the spray water and the high-pressure gas are mixed in the spray pipe and then sprayed out through the nozzles; the sprayed surface of the detection blank faces the nozzle.

2. The offline detection device for continuous casting aerosol nozzle according to claim 1, characterized in that: The water pipe is provided with a first ball valve, a first pressure transmitter and an electromagnetic flowmeter.

3. The offline detection device for continuous casting aerosol nozzle according to claim 2, characterized in that: The air pipe is provided with a second ball valve and a second pressure transmitter.

4. The offline detection device for continuous casting aerosol nozzle according to claim 1, characterized in that: It also includes a detection frame which is arranged on one side of the spray pipe and is far away from the detection blank.

5. The offline detection device for continuous casting aerosol nozzle according to claim 1, characterized in that: The area of ​​the detection blank is larger than the spraying area of ​​the nozzle.

6. The offline detection device for continuous casting aerosol nozzle according to claim 1, characterized in that: A fixing device is provided at the bottom of the detection blank.

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