CN201459166U - Air intake belly pipe for blast furnace - Google Patents

Air intake belly pipe for blast furnace Download PDF

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Publication number
CN201459166U
CN201459166U CN2009201037277U CN200920103727U CN201459166U CN 201459166 U CN201459166 U CN 201459166U CN 2009201037277 U CN2009201037277 U CN 2009201037277U CN 200920103727 U CN200920103727 U CN 200920103727U CN 201459166 U CN201459166 U CN 201459166U
Authority
CN
China
Prior art keywords
pipe
blast furnace
coal dust
belly
air intake
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
CN2009201037277U
Other languages
Chinese (zh)
Inventor
王庆丰
刘西斌
朱惠红
范兆光
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.)
Shijiazhuang Juli Technology Co ltd
Original Assignee
Shijiazhuang Juli Technology 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 Shijiazhuang Juli Technology Co ltd filed Critical Shijiazhuang Juli Technology Co ltd
Priority to CN2009201037277U priority Critical patent/CN201459166U/en
Application granted granted Critical
Publication of CN201459166U publication Critical patent/CN201459166U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an air intake belly pipe for a blast furnace, which comprises pulverized coal nozzles (1), a warm-air pipe (2), a fire-proof layer (3) and a sleeve (4), wherein a pipe in the pulverized coal nozzle (1) is communicated with the warm-air pipe (2); and a plurality of pulverized coal nozzles (1) are arranged on the periphery of the sleeve (4). The air intake belly pipe improves pulverized coal injection rate, such that refining efficiency is largely improved, and the energy-saving effect of iron making system is achieved.

Description

A kind of blast furnace air inlet belly pipe
Technical field
The utility model relates to the belly pipe in a kind of iron-smelting blast furnace air inlet device, belongs to the blast furnace ironmaking apparatus field.
Background technology
In the blast furnace ironmaking process, the high-temperature hot-air that produces in the hotblast stove need be delivered in the blast furnace, and blast furnace air inlet device is exactly the special air intake passage device that is provided with, belly pipe belongs to the part of air inlet device.
At present, belly pipe coal dust rifle intubate has only one in the domestic air-supply arrangement, exists coal powder injection than low problem, and has also caused the waste of hot blast.
The utility model content
The utility model technical issues that need to address provide a kind of belly pipe that improves the coal powder injection ratio.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of blast furnace air inlet belly pipe comprises coal dust jet pipe, heating duct, and pipeline and heating duct in the coal dust jet pipe are connected, and are set to a plurality of coal dust jet pipes on the telescopic circumference.
As improvement of the present utility model, described coal dust jet pipe is set to two.
As further improvement of the utility model, the angle between described two coal dust jet pipes is 22 degree.
Owing to adopted technique scheme, the obtained technical progress of the utility model is:
In the air-supply process, can carry out Coal powder spray with many (two) coal spouting guns, the coal powder injection ratio is improved, smelting efficient is increased substantially, many spray 1t coal dust coke for replacing, can also make a profit about 500 yuan, many coal powder injections can also realize the effect of ironmaking system structure energy-saving, at present, the coal powder injection process energy consumption of domestic each iron work is 20-35kg/t, many spray 1t coal dusts just can reduce the energy consumption about ironmaking system 100kg/t, this shows, improve the economic benefit of coal powder injection ratio, for iron and steel enterprise has reduced cost, saved coke, brought considerable economic.
Description of drawings
Fig. 1 is the structure diagram of existing belly pipe;
Fig. 2 is the structure diagram of the utility model belly pipe.
Wherein: 1, coal dust jet pipe; 2, heating duct; 3, flame retardant coating; 4, sleeve pipe.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details:
Among Fig. 1, existing belly pipe generally includes coal dust jet pipe 1, heating duct 2, flame retardant coating 3 and sleeve pipe 4.Be stained with flame retardant coating 3 on sleeve pipe 4 inner peripherys, hollow space is a heating duct 2, a termination bustle pipe of heating duct 2, and another termination blast furnace is used for to the blast furnace hot wind supply.Pipeline in the coal dust jet pipe 1 and heating duct 2 are connected, and are used for Coal powder spray.
Among Fig. 2, be provided with 2 coal dust jet pipes 1 on the circumference of sleeve pipe 4, pipeline in the coal dust jet pipe 1 and heating duct 2 are connected, and the angle of 2 coal dust jet pipes 1 is 22 degree.
During work, heating duct 2 sprays high-temperature hot-air in blast furnace, and simultaneously, 2 coal dust jet pipe 1 interior pipelines spray coal dust in heating duct 2, make coal dust combine with high-temperature gas, fully burning in blast furnace, thus carry out the smelting of iron and steel.

Claims (3)

1. blast furnace air inlet belly pipe, comprise coal dust jet pipe (1), heating duct (2), flame retardant coating (3) and sleeve pipe (4), pipeline and heating duct (2) in the coal dust jet pipe (1) are connected, and it is characterized in that: be set to a plurality of coal dust jet pipes (1) on the circumference of sleeve pipe (4).
2. a kind of blast furnace air inlet belly pipe according to claim 1 is characterized in that: described coal dust jet pipe (1) is set to two.
3. a kind of blast furnace air inlet belly pipe according to claim 2 is characterized in that: the angle between described two coal dust jet pipes (1) is 22 degree.
CN2009201037277U 2009-07-16 2009-07-16 Air intake belly pipe for blast furnace Expired - Fee Related CN201459166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201037277U CN201459166U (en) 2009-07-16 2009-07-16 Air intake belly pipe for blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201037277U CN201459166U (en) 2009-07-16 2009-07-16 Air intake belly pipe for blast furnace

Publications (1)

Publication Number Publication Date
CN201459166U true CN201459166U (en) 2010-05-12

Family

ID=42386520

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201037277U Expired - Fee Related CN201459166U (en) 2009-07-16 2009-07-16 Air intake belly pipe for blast furnace

Country Status (1)

Country Link
CN (1) CN201459166U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559968A (en) * 2010-12-14 2012-07-11 李春光 Straight blowpipe with double guns for blast furnace
CN102758033A (en) * 2012-07-04 2012-10-31 山东轻工业学院 Spray gun used for blowing waste plastic pyrolysis gas premixed pulverized coal and blowing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559968A (en) * 2010-12-14 2012-07-11 李春光 Straight blowpipe with double guns for blast furnace
CN102758033A (en) * 2012-07-04 2012-10-31 山东轻工业学院 Spray gun used for blowing waste plastic pyrolysis gas premixed pulverized coal and blowing method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Air intake belly pipe for blast furnace

Effective date of registration: 20110322

Granted publication date: 20100512

Pledgee: Industrial Commercial Bank of China Ltd Zhaoxian County branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2011990000087

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20120523

Granted publication date: 20100512

Pledgee: Industrial Commercial Bank of China Ltd Zhaoxian County branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2011990000087

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Air intake belly pipe for blast furnace

Effective date of registration: 20120523

Granted publication date: 20100512

Pledgee: China Everbright Bank, Limited by Share Ltd, Shijiazhuang branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2012990000230

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20130516

Granted publication date: 20100512

Pledgee: China Everbright Bank, Limited by Share Ltd, Shijiazhuang branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2012990000230

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Air intake belly pipe for blast furnace

Effective date of registration: 20130516

Granted publication date: 20100512

Pledgee: China Everbright Bank, Limited by Share Ltd, Shijiazhuang branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2013990000287

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20141204

Granted publication date: 20100512

Pledgee: China Everbright Bank, Limited by Share Ltd, Shijiazhuang branch

Pledgor: Shijiazhuang Juli Technology Co.,Ltd.

Registration number: 2013990000287

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20170716