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Safe operation method of gas pipeline network for single-seat blast furnace without gas cabinet

A gas pipeline network and safe operation technology, applied to blast furnaces, blast furnace details, furnaces, etc., can solve the problems of gas pipeline network safety hazards, inability to be put into operation simultaneously, and achieve the effect of preventing flashback explosion accidents

Active Publication Date: 2015-09-16
WUHU XINXING DUCTILE IRON PIPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the gas cabinets of some enterprises cannot be put into operation synchronously during blast furnace production, there is a great hidden danger in the safety of the gas pipeline network in the case of blast furnace production without gas cabinets

Method used

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  • Safe operation method of gas pipeline network for single-seat blast furnace without gas cabinet

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Embodiment Construction

[0019] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0020] The structure of the present invention as shown in the figure is a gas pipeline network produced by a single-seat blast furnace without a gas cabinet, and the blast furnace is an ironmaking blast furnace; the gas pipeline network is also connected to the gas user unit.

[0021] In order to solve the problems existing in the prior art and overcome its defects, realize the invention goal of ensuring the safety of the gas pipe network without gas cabinets, the technical scheme adopted by the present invention is:

[0022] Such as figure 1 As shown, the production gas pipeline network of the gas cabinet single-seat blast furnace...

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Abstract

The invention discloses a safety operation method for a gaspipe network in gasometer-free single-seated blast furnace production. A blast furnace is an ironmaking blast furnace; the gaspipe network is further connected with a gas consumption unit, and connected with a low-pressure nitrogen gas pipe network through a nitrogen gas pipeline. The invention further provides a safety operation method for the gaspipe network. By adopting the technical scheme, under the situation that the pipe network is in loss of pressure, gas consumption users have time to turn off a burner valve, so as to guarantee the positive pressure of the pipe network, prevent the occurrence of back fire explosion accidents and guarantee the operation safety and stability of the pipe network. After the blast furnace obtains air again, the interior of the pipeline is always in positive pressure without the entry of air, the explosion-proof tests for blast-furnace gas consumption users are qualified within short time, and users can be guaranteed to fast resume production.

Description

technical field [0001] The invention belongs to the technical field of production equipment in the metallurgical industry, and relates to the technology of blast furnace production equipment. More specifically, the invention relates to a method for safe operation of a gas pipeline network produced by a single-seat blast furnace without a gas cabinet. Background technique [0002] Due to the unstable production of the blast furnace in the initial stage of commissioning, planned and unplanned emergency gas cut-offs often occur. Planned shutdown of wind and gas cuts and fan sudden trips, causing sudden gas cuts in blast furnaces from time to time; [0003] Due to the production of a single blast furnace, once the blast furnace shuts off the gas, the pressure of the pipe network will drop sharply, which may cause negative pressure in the pipe network, and the users will not be able to close the burner valve in time, resulting in flashback explosion and other secondary vicious ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B5/00
Inventor 胡泊
Owner WUHU XINXING DUCTILE IRON PIPES
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