CN201553744U - Blast furnace top gas igniter - Google Patents

Blast furnace top gas igniter Download PDF

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Publication number
CN201553744U
CN201553744U CN2009200169052U CN200920016905U CN201553744U CN 201553744 U CN201553744 U CN 201553744U CN 2009200169052 U CN2009200169052 U CN 2009200169052U CN 200920016905 U CN200920016905 U CN 200920016905U CN 201553744 U CN201553744 U CN 201553744U
Authority
CN
China
Prior art keywords
gas
pipe
blast furnace
compressed air
coke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009200169052U
Other languages
Chinese (zh)
Inventor
谢明辉
杨维元
刘锡国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angang Steel Co Ltd
Original Assignee
Angang Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Angang Steel Co Ltd filed Critical Angang Steel Co Ltd
Priority to CN2009200169052U priority Critical patent/CN201553744U/en
Application granted granted Critical
Publication of CN201553744U publication Critical patent/CN201553744U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a blast furnace top gas igniter, which is characterized in that a compressed air pipe and a coke oven gas pipe which are connected with an air source are respectively communicated with the middle parts of a transverse pipe of a positive U-shaped pipe and a reverse U-shaped pipe which are oppositely arranged in parallel at notches, and four vertical pipes of the positive U-shaped pipe and the reverse U-shaped pipe are respectively drilled with at least 6 gas injection holes. After the blast furnace is stopped, an igniter which adjusts the ratio of the coke oven gas and the compressed air is put above the charge level in the furnace from a manhole at the top of the blast furnace, and then the gas in the furnace can be ignited. The whole ignition process only needs 30 minutes, 1.5 hours ahead of the conventional ignition mode, and the damping down time of the blast furnace is shortened.

Description

The top gas lighter for ignition
Technical field
The utility model belongs to portfire, is specifically related to a kind of lighter for ignition that blast furnace furnace roof raw gas is lighted of being used for.
Background technology
Behind the blast furnace staying, the raw gas of generation in the production process or the relative dense part that leaks must be handled.In the raw gas treating processes, the processing of the coal gas that the blast furnace furnace roof is produced is exactly to take the method for lighting with naked light, so that its burning totally, avoids presence of fire and other accidents, guarantees furnace roof operating personnel's safety.At present, when carrying out furnace roof igniting operation, what generally adopt is that oilcloth or coke-oven gas fire bowl are lighted a fire.Because the coal gas amount of blast furnace furnace roof is all relative with combustion-supporting air quantity less, so ignition time is long, generally needs to prove effective in 2 hours, thereby has prolonged the blast furnace staying time, has directly influenced the operating rate of blast furnace.
Summary of the invention
The purpose of this utility model is exactly at the problems referred to above, aim to provide a kind of simple, safe and efficient, the top gas portfire that can shorten ignition time.
For this reason, the solution taked of the utility model is:
A kind of top gas lighter for ignition, be with connect the compressed air pipe of source of the gas and coke-oven gas pipe turn on respectively recess in opposite directions, the transverse tube middle part of positive and negative two " U " shape pipes of being set up in parallel, be drilled with at least 6 gas orifices respectively on four vertical tubes of positive and negative two " U " shape pipes.
Be respectively equipped with by-pass valve control on described compressed air pipe and the coke-oven gas pipe.
Behind the blast furnace staying, the coke-oven gas pipe of the lighter for ignition of the utility model and the by-pass valve control on the compressed air pipe are opened, light coke-oven gas, open big coke-oven gas and compressed air require gradually, after adjusting coke-oven gas and compressed-air actuated proportioning, again lighter for ignition is put into charge level top in the stove from blast furnace furnace roof manhole, can puts coal gas in the burner.Whole ignition process only needs 30 fens clock times, has shifted to an earlier date 1.5 hours than conventional sparking mode, has shortened the blast furnace staying time relatively, has reduced the pig iron loss that brings because of damping down, has tangible economic benefit.Igniter structure is simple, and operation is safe and reliable easily, but self manufacture.
Description of drawings
Fig. 1 is a top gas lighter for ignition front view.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Among the figure: compressed air pipe 1, coke-oven gas pipe 2, vertical tube 3, gas orifice 4, transverse tube 5.
Embodiment
Below, the utility model is described in further detail in conjunction with the accompanying drawings.
The utility model mainly is made up of a compressed air pipe 1, a coke-oven gas pipe 2 and two " U " shapes pipe institutes.From Fig. 1, lighter for ignition profile similar " fly swatter "; Fig. 2 side-looking is a rectangle that does not seal; Fig. 3 is then as a pair of " spade handle ".
The termination of lighter for ignition be two recesses in opposite directions, be set up in parallel " U " shape pipe, each " U " shape pipe is formed by a transverse tube 5 and two vertical tubes 3, and respectively is drilled with 9 gas orifices 4 on four vertical tubes 3, is used to spray coke-oven gas and combustion air.Transverse tube 5 middle parts of forward (recess upwards) " U " shape pipe connect coke-oven gas pipe 2; Oppositely the middle part of the transverse tube 5 of (recess is downward) " U " shape pipe connects compressed air pipe 1.Compressed air pipe 1, coke-oven gas pipe 2 the other ends are connected on external compression air source of the gas and the coke-oven gas source of the gas separately.In addition, on compressed air pipe 2 and coke-oven gas pipe 2, also be separately installed with by-pass valve control, so that control air and gas flow.

Claims (2)

1. top gas lighter for ignition, it is characterized in that, connect the compressed air pipe of source of the gas and coke-oven gas pipe turn on respectively recess in opposite directions, the transverse tube middle part of positive and negative two " U " shape pipes of being set up in parallel, be drilled with at least 6 gas orifices respectively on four vertical tubes of positive and negative two " U " shape pipes.
2. top gas lighter for ignition according to claim 1 is characterized in that, is respectively equipped with by-pass valve control on compressed air pipe and coke-oven gas pipe.
CN2009200169052U 2009-08-25 2009-08-25 Blast furnace top gas igniter Expired - Fee Related CN201553744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200169052U CN201553744U (en) 2009-08-25 2009-08-25 Blast furnace top gas igniter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200169052U CN201553744U (en) 2009-08-25 2009-08-25 Blast furnace top gas igniter

Publications (1)

Publication Number Publication Date
CN201553744U true CN201553744U (en) 2010-08-18

Family

ID=42613418

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200169052U Expired - Fee Related CN201553744U (en) 2009-08-25 2009-08-25 Blast furnace top gas igniter

Country Status (1)

Country Link
CN (1) CN201553744U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017198A (en) * 2012-12-30 2013-04-03 大冶特殊钢股份有限公司 Simple reinforced type blast furnace top burning torch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017198A (en) * 2012-12-30 2013-04-03 大冶特殊钢股份有限公司 Simple reinforced type blast furnace top burning torch
CN103017198B (en) * 2012-12-30 2014-11-26 大冶特殊钢股份有限公司 Simple reinforced type blast furnace top burning torch

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20150825

EXPY Termination of patent right or utility model