Device and method for preventing blockage of spray gun coke oven gas pipe of blast furnace

A technology of gas pipes and spray guns, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve problems such as pipeline blockages, and achieve the effects of preventing blockages, simple devices, and good economy

Inactive Publication Date: 2013-12-18
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even the treated coke oven gas will still bring the above inclusions, therefore, it will still lead to the occurrence of pipeline blockage

Method used

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  • Device and method for preventing blockage of spray gun coke oven gas pipe of blast furnace
  • Device and method for preventing blockage of spray gun coke oven gas pipe of blast furnace
  • Device and method for preventing blockage of spray gun coke oven gas pipe of blast furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Insert an ultrasonic probe 4 with a diameter of 8 mm into the coke oven gas pipe 6 of the spray gun at 10 mm. The ultrasonic generator 1 sends a 30 kHz high-frequency signal, and the output ultrasonic electric power is 50 W. The ultrasonic transducer 3 is adjusted to a resonance state. The ultrasonic generator 1 Turn on once every 30 minutes, and run for 15 minutes each time.

Embodiment 2

[0030] Insert the ultrasonic probe 4 with a diameter of 10mm into the coke oven gas pipe 6 of the spray gun at 6mm, and the ultrasonic generator 1 sends out a 40kHz high-frequency signal, and the output ultrasonic electric power is 150W, and is adjusted to the resonance state by the ultrasonic transducer 3, and the ultrasonic generator 1 Turn on once every 25 minutes, and run for 10 minutes each time.

Embodiment 3

[0032] Insert the ultrasonic probe 4 with a diameter of 8mm into the coke oven gas pipe 6 of the spray gun at 15mm, and the ultrasonic generator 1 sends out a 40kHz high-frequency signal, and the output ultrasonic electric power is 150W, which is adjusted to resonance by the ultrasonic transducer 3

[0033] state, the ultrasonic generator 1 is turned on every 28 minutes, and runs for 15 minutes each time.

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Abstract

The invention provides a device and method for preventing blockage of a spray gun coke oven gas pipe of a blast furnace. An ultrasonic generator is connected with three ultrasonic probes loaded with ultrasonic transducers through a signal transmission line, and the ultrasonic probes extend into a gas pipe from the bottom of the spray gun coke oven gas pipe respectively. The ultrasonic probes are inserted into the spray gun coke oven gas pipe; the ultrasonic generator sends out a high-frequency signal, and the high-frequency signal is converted into ultrasonic waves through the ultrasonic transducers; the probes are in contact with the attachment liquid on the inner wall of a spray gun pipeline to perform ultrasonic irradiation so as to generate an ultrasonic cavitation effect and an ultrasonic calorifics effect; the ultrasonic generator is started once at an interval of certain time and runs for 10-15 minutes after each start. By adopting the device and method provided by the invention, organic matters in the pipe wall attachments can be degraded to volatilize some organic matters, thus the deposition of toxic and harmful organic substances in the pipeline is reduced, the blockage of the spray gun coke oven gas pipe is effectively prevented, and the discharge of industrial pollutants is reduced.

Description

technical field [0001] The invention belongs to the technical field of blast furnace ironmaking, and in particular relates to a device and method for preventing coke oven gas pipe blockage of a blast furnace spray gun. Background technique [0002] Blast furnace gas injection coke oven gas process is to pressurize the coke oven gas from the coking plant to a pressure higher than the tuyere pressure. Under the action of the pressure, the coke oven gas reaches the tuyere through the pipeline system and enters the blast furnace through the spray gun. In the blast furnace, coke oven gas provides heat and reducing agent for the blast furnace through combustion and decomposition reactions, thereby replacing the heat source and reducing agent played by the corresponding coke to complete the smelting and reduction reactions. While the process brings good results, it also encounters many unexpected difficulties, the most important of which is pipeline blockage, especially the blockag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00C21B7/00
Inventor 王亮王再义李金莲任伟童晓宇韩子文张立国张伟邓伟王相力
Owner ANGANG STEEL CO LTD
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