Transverse pipeline blockage analysis and blockage prevention method before coke oven gas preheating of coke oven gas heating system
A technology of coke oven gas and heating system, which is applied in the detection field to achieve the effect of strengthening safety implementation
Pending Publication Date: 2021-03-09
BAOTOU IRON & STEEL GRP
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Problems solved by technology
At present, various literature and data inquiries show that there is no relatively complete analysis and detection method and prediction method for this.
Method used
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Embodiment
[0022] This example is an application practice of a gas horizontal pipe in front of a gas heater that was severely blocked and corroded in August of a certain year during the production process of a coking enterprise.
[0023] 1. On-site survey and sampling work
[0024] The first step is the physical survey of the site. In mid-to-late August, small bubbles appeared from time to time in the upper part of a short section of the horizontal pipe of the gas pipeline in front of the gas preheater, resembling mushrooms. When this section of pipeline was cut, it was found that the gas pipeline with a diameter of 600mm had been blocked by plugs for nearly 2 / 3. It was found that a large amount of black dross with viscous substances was pulled out from the gas pipe. From the cut gas pipeline, we observed that the lower part of the pipeline was not seriously corroded, but the upper part of the gas pipeline was very corroded. There were corrosion holes in some places, and the corrosion ...
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The invention discloses a method for analyzing and preventing blockage of a transverse pipeline before coke oven gas preheating of a coke oven gas heating system. The method comprises the following steps of S1, surveying a real object on site; S2, on-site sampling of a coal gas horizontal pipe, blockages and coke oven gas; S3, making scientific and rigorous test sample analysis with strong pertinence and no loss of comprehensiveness for the test samples taken from the coal gas horizontal pipe, the blockages and the coke oven gas on site; S4, analyzing the data of the detection sample, determining the component composition and the component content of the blockage, and analyzing and researching the formation reason of the blockage; and S5, formulating a technical scheme for preventing the gas transverse pipe from being blocked. The method provided by the invention provides a whole set of technical process and method for analyzing the blockage of the horizontal pipeline before coke ovengas preheating and preventing blockage of the coke oven gas heating system, can scientifically and effectively analyze the blockage of the horizontal pipeline before preheating to ensure that the gasheating pipeline stably and safely conveys gas, and ensures that the coke oven heating system is scientific and standard.
Description
technical field [0001] The invention relates to the technical field of detection, in particular to a method for analyzing and preventing blockages in a horizontal pipe before coke oven gas preheating in a coke oven gas heating system. Background technique [0002] my country's current coke oven heating features and methods are mainly double-fired channels, coke oven gas spraying downwards, and reheating coke ovens. The coke oven heating uses the coke oven gas of our factory, which can make more convenient and economical use of resources. The gas from the coke oven gas main pipe of the returned furnace passes through the gas horizontal pipe, passes through the preheater, and then enters the coke oven gas main pipe in the basement. The horizontal pipe in front of the gas preheater occupies an important position in the pipeline of the reheating coke oven heating equipment. It is necessary to ensure sufficient supply of gas. Due to the complexity of coke oven gas components, it ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01N1/04G01N1/10G01N1/22G01N33/00
CPCG01N1/04G01N1/10G01N1/22G01N33/00
Inventor 江鑫李晓炅芦建文谢晓霞魏欣付利俊
Owner BAOTOU IRON & STEEL GRP