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A blast furnace stave online checking water process and the water tank used in the process

A technology for cooling walls and water tanks, applied in cooling devices, inspection devices, etc., can solve the problems of easy misjudgment, high labor intensity, and lack of science, and achieve the effect of improving accuracy

Active Publication Date: 2022-01-11
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relying on the personal experience of the technicians to check the water on the cooling wall online, due to the different experience of the technicians, the accuracy of the water check is low, and it is prone to misjudgment, which is not scientific enough and the labor intensity is high

Method used

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  • A blast furnace stave online checking water process and the water tank used in the process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 : a blast furnace cooling stave 2 online checking water technology, technological process is as follows:

[0030] a) The tank wall is made of toughened glass, and a sealed portable water tank 5 is made. The water tank 5 is 1000mm long, 500mm high, and 500mm wide; a hole is opened at a height of 420mm on one side of the water tank 5, and the diameter of the hole is the same as that of the water outlet pipe 4 of the cooling wall 2 The same size is 50mm; in the water tank 5, an isolation plate 10 is installed additionally, and the isolation plate 10 is in tangential contact with three sides in the water tank 5, and the height of the isolation plate 10 is 420mm. The gas chamber 12, the reservoir 6 and the gas storage chamber 12 have a volume ratio of 4:1. Perforate below gas storage chamber 12, perforate diameter 30mm, install drain valve 8 additionally, valve is a ball valve, perforate place leads rubber pipe water pipe 11 to communicate reservoir 6 by separa...

Embodiment 2

[0041] b) The pressure inside the blast furnace is 408KPa in the state of smelting, the water inlet pressure of stave 2 is 1200KPa, close the water inlet valve of stave 2 to make the water inlet pressure 320KPa, connect the water outlet pipe 4 of stave 2 with the water tank 5, Allow cooling wall 2 outlet water to flow into water tank 5.

[0042] c) At the beginning of water storage in the water tank 5, the gas detector 9 shows that the gas detection value is 0ppm. When the water level of the water tank 5 reaches the isolation plate 10, the gas detector 9 measures a gas value of 0ppm, and the cooling wall 2 has no leakage .

[0043] d) Open the drain valve 8, gradually drain the water in the reservoir 6, and disconnect the outlet pipe 4 of the stave 2 from the water tank 5 at the same time.

[0044] e) Open the pressure relief valve 7 to release the pressure in the water tank 5 .

[0045] Use effect: By checking the water of stave 2 under the production state, it is possible ...

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Abstract

The invention relates to an on-line water checking process of a blast furnace stave. The process is as follows: according to the pressure in the blast furnace under the smelting state, the water inlet valve of the stave is closed to make the water inlet pressure lower than the pressure in the blast furnace, and the outlet pipe of the stave is closed. Connect with the water tank, let the water in the cooling wall flow into the water tank; observe whether the gas detector has a gas detection value during the process; Disconnect and release the pressure in the water tank; if the gas detector shows a gas value, introduce a fire to burn the discharged gas. By checking the water in the cooling stave under the production state, it is possible to accurately judge whether there is water leakage in the cooling wall, which changes the disadvantage of relying on manual experience to check the water, and improves the accuracy of online water checking in the cooling stave of the blast furnace.

Description

technical field [0001] The invention belongs to the technical field of blast furnace inspection, and relates to an online water inspection process of a blast furnace cooling wall and a water tank used in the process. Background technique [0002] The blast furnace structure generally includes from the outside to the inside: the outer layer is made of a steel plate, which is called the furnace skin; the stave is installed in the furnace skin; a layer of protective bricks is built in the stave; each layer is filled Ramping material. [0003] Blast furnace staves, from the furnace bottom to the furnace throat, are generally divided into more than 10 layers, and each layer is installed with dozens of staves along the periphery of the furnace body to ensure the safety of the blast furnace body structure. [0004] Blast furnace cooling stave adopts the following cooling methods: high-pressure cooling water is introduced at one end of the cooling stave, and the cooling water passe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/10C21B7/24
CPCC21B7/103C21B7/24
Inventor 陈生利卢永凯师瑞虹蔡琳陈开泉李明星陈胜黄恺姜叶邓娟
Owner SGIS SONGSHAN CO LTD
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