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Hearth safety monitoring method

A technology of safety monitoring and furnace, applied in the direction of combustion method, safety device of combustion chamber, combustion chamber, etc., can solve the problems of many human factors, achieve the effect of preventing personal injury and reducing randomness

Inactive Publication Date: 2011-09-07
PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a furnace safety monitoring method in order to solve the problem that there are too many human factors in the furnace safety monitoring method under the mixed use of coal gas in various metallurgical furnaces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] All purges in this example use nitrogen as an example.

[0036]Firstly, the unit starts up normally. After satisfying the start-up condition of the purge, the furnace is started to be purged, and the ignition gas pipeline is purged at the same time. Equal to 30%, the bubble water level is normal, the gas pipeline valve is fully closed, all fire detection equipment shows no fire, the blower is running, at least one induced draft fan is in operation, the cooling air pressure of the fire detection equipment is normal, and there is no main fuel trip condition , The general thermal power supply is normal, the gas end release valve is open, and then the ignition gas system conducts a tightness test on the pipeline and valve as a whole before ignition. The test medium used in this example is nitrogen. The test qualification standard is: the system fills the pipeline When the nitrogen pressure reaches 1.25 times of the working pressure of the pipeline, stop filling the nitrogen...

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PUM

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Abstract

The invention relates to a hearth safety technology, solves the problem of more artificial factors of the traditional hearth safety monitoring method under the condition of the mixed use of various metallurgical furnace generation gases and provides a hearth safety monitoring method. The method comprises the following steps of: starting hearth blowing and sweeping after meeting a blowing and sweeping starting condition; then carrying out a tightness test by an ignition gas system before ignition; if the tightness meets the requirement, after the blowing and the sweeping of a pipeline, judgingwhether a gas explosion test for ignition is qualified or not; if not, locking a system, and if so, after the system finishes igniting a primer, allowing to commission other gases and entering and operating safety management to carry out pressure chain protection on the whole of a boiler; and at the moment, monitoring whether the parts of the boiler have faults or accidents or not by the system, if so, carrying out main fuel tripping control, and finally, blowing out the system. The method has the advantages of reducing the arbitrariness of operations and being suitable for the hearth safety monitoring under the condition of the mixed use of various metallurgical furnace generation gases.

Description

technical field [0001] The invention relates to the furnace safety technology, in particular to the furnace safety technology under the mixed use of coal gas generated in various metallurgical furnaces. Background technique [0002] The existing furnace safety monitoring technology is a process designed based on pure pulverized coal-fired boilers, and is mainly aimed at the safety management of pulverized coal. For the furnace safety monitoring system under various metallurgical gas co-firing conditions, there is no specific technology and specification. To achieve the boiler system safety technology under various metallurgical gas co-firing conditions, the following methods are usually adopted: 1 .Conventional ignition, where the safety guarantee method for conventional ignition is to start the suction fan, and then the operator will go to the site to purge the gas main pipe with nitrogen. The gas explosion experiment is carried out at the end of the ignited coke oven gas,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23M11/00
Inventor 张牛生童伟
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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