CN2859251Y - Agglomerated low negative pressure ignition control device - Google Patents
Agglomerated low negative pressure ignition control device Download PDFInfo
- Publication number
- CN2859251Y CN2859251Y CN 200520031702 CN200520031702U CN2859251Y CN 2859251 Y CN2859251 Y CN 2859251Y CN 200520031702 CN200520031702 CN 200520031702 CN 200520031702 U CN200520031702 U CN 200520031702U CN 2859251 Y CN2859251 Y CN 2859251Y
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- Prior art keywords
- negative pressure
- control device
- ignition control
- orifice plate
- utility
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Abstract
The utility model involves in a kind of agglomerated low negative pressure ignition control device in the igniter hearth in the agglomerating machine production, belonging to ironstone sintering field of metallurgy industry. The utility model includes bellows with two floors. The upper layer is composed of pore plate with pylomes and stuff stripper above the pore plate. The under layer is composed of adjustable ventholes composed of fixing plate and adjustable valve located under the fixing plate. The utility model uses pore plate and stuff layer to conform gas-flow resistance in the bellows without generating scouring of the valve body by materials, thereby reducing fault point of sinterer and increasing sintering productivity. The utility model is capable of adjusting negative pressure of the hearth according to actual demand at any time with simplicity of operator and freedom of halt, thereby increasing sintering productivity observably.
Description
Technical field
The utility model relates to igniter burner hearth lower negative pressure ignition control device in a kind of sintering machine production, belongs to metallurgy industry iron ore sintering field.
Background technology
Metallurgy industry is general at present adopts following two kinds of methods to control the igniting negative pressure:
1, the adjusting butterfly valve is installed on the 1# under the ignition of sintering process device, 2# bellows, is used to regulate the height of igniting negative pressure.The shortcoming of this method is: in order to realize lower negative pressure, must reduce the opening degree of butterfly valve, cause the wind speed that flows through butterfly valve to increase like this, quickened the bulk cargo that leaks down from the sinter machine grid slit to washing away that the valve plate of butterfly valve and valve body cause, accelerate the butterfly valve rate of wear, cause sintering system to leak out, influence SINTERING PRODUCTION.
2, the 1# bellows under the igniter are shut, realized the lower negative pressure igniting with the string wind between 1# and the 2# bellows.The shortcoming of this method is: not only make the ignition zone reach, reduce effective sintering area, and form buildup easily between baffle plate and chassis, accelerate the wearing and tearing of 2# bellows, reduce igniting effect and sintering machine productivity ratio.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of long service life, stable sintering lower negative pressure ignition control device are provided.
The purpose of this utility model is achieved in that
The utility model sintering lower negative pressure ignition control device, comprise bellows, described bellows are by two-layer composition up and down, described upper strata is made up of orifice plate and the buildup cleaner that is positioned on the orifice plate, have through hole on the orifice plate, described lower floor forms by adjusting passage, and the described passage of adjusting is by fixed head and place the control valve under the fixed head to constitute.
Described buildup cleaner is electrically connected with differential pressure transmitter.
The utility model forms the interior gas-flow resistance of bellows with the buildup layer on orifice plate and top thereof, be different from butterfly valve fully by changing the local resistance that opening degree forms, the drawback that does not exist air velocity to increase, therefore can not form material washes away phenomenon to valve body, reduce the sintering machine trouble point, improved productivity of sinter; In addition, the utility model can be adjusted combustion chamber draft at any time according to producing actual needs, and simple to operate, need not shut down, and has significantly improved productivity of sinter.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model orifice plate.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
Referring to Fig. 1, the utility model mainly comprises bellows, is divided into two-layerly up and down in the described bellows 1, and the upper strata is made up of orifice plate 2 and the buildup cleaner 6 that is positioned on the orifice plate, has through hole 7 on the orifice plate 2; Lower floor forms by adjusting passage 8, and the described passage 8 of adjusting is by fixed head 3 with place the control valve 4 under the fixed head to constitute; Buildup cleaner 6 is electrically connected with differential pressure transmitter 5.
Referring to Fig. 2, the set-up mode of through hole 7 on the described orifice plate 2 according to orifice plate air-flow distribution principle, can be taked evenly or the setting that is interspersed, and the face air-flow that guarantees to light a fire is evenly distributed; The percent opening of orifice plate 2 to form the pipeline local resistance, makes the certain pressure reduction of formations between large flue and 1# bellows 10% one 50%, and the realization lower negative pressure is lighted a fire.
The described throughput of adjusting passage 8 should equate with the throughput of perforate 7 on the orifice plate 2, when upper strata wearing and tearing or process conditions and parameter change, can in time adjust according to producing reality and technological requirement, adopt handle or electronic leading screw to promote the opening degree that a wearing plate changes passage 8, control reaches the requirement of lower negative pressure igniting by the throughput of bellows.
By the clear glassware of differential pressure transmitter 5 control, when adjusting device top and the bottom pressure reduction during greater than setting value, buildup cleaner 6 is just started working, and guarantees that bellows have certain gas permeability, the negative pressure requirement when satisfying igniting.
Embodiment:
Through theory analysis and analog machine test, the orifice plate 2 on bellows upper strata is set to rectangle, specification is 600 * 400mm, and material is selected 7Cr24Ni7Si for use, high temperature resistant and wearing and tearing, percent opening is 25%, through hole 7 be shaped as rectangle, specification is 4 * 5mm, evenly distributes by herringbone, through hole 7 upper sheds are slightly little, down increase gradually; As long as the passage adjusted 8 specifications on the fixed head 3 are 4 * 10mm, guarantee bulk cargo by top plate through hole 7, just can pass through lower floor's fixed head 3; The bellows specification is 70 * 1000mm, buildup cleaner 6 is by differential pressure transmitter 5 controls, when pressure reduction reaches a certain setting control range, start electric drive hydraulic thruster, in time clear up buildup, make existing resistance in the bellows, certain gas permeability is arranged again, this control range can be determined according to producing reality and process conditions.
Claims (5)
1, sintering lower negative pressure ignition control device comprises bellows, it is characterized in that, described bellows are by two-layer composition up and down, and described upper strata is made up of orifice plate and the buildup cleaner that is positioned on the orifice plate, has through hole on the orifice plate; Described lower floor forms by adjusting passage, and the described passage of adjusting is by fixed head and place the control valve under the fixed head to constitute.
2, sintering lower negative pressure ignition control device according to claim 1 is characterized in that, the percent opening of described orifice plate is at 10%--50%, and the through hole on the orifice plate is evenly or the setting that is interspersed.
3, sintering lower negative pressure ignition control device as claimed in claim 1 or 2 is characterized in that, described through hole 7 be shaped as rectangle, specification is 4 * 5mm, through hole 7 upper sheds are slightly little, down increase gradually.
4, sintering lower negative pressure ignition control device as claimed in claim 1 or 2 is characterized in that, the described ventilation volume of air hole of adjusting should equate with the throughput of perforate on the orifice plate.
5, as sintering lower negative pressure ignition control device as described in the claim 3, it is characterized in that described buildup cleaner is electrically connected with differential pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031702 CN2859251Y (en) | 2005-08-31 | 2005-08-31 | Agglomerated low negative pressure ignition control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031702 CN2859251Y (en) | 2005-08-31 | 2005-08-31 | Agglomerated low negative pressure ignition control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859251Y true CN2859251Y (en) | 2007-01-17 |
Family
ID=37612110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031702 Expired - Fee Related CN2859251Y (en) | 2005-08-31 | 2005-08-31 | Agglomerated low negative pressure ignition control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859251Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017528A (en) * | 2012-12-19 | 2013-04-03 | 中冶长天国际工程有限责任公司 | Micropressure regulating system for sintering ignition furnace |
| CN103114199A (en) * | 2013-03-12 | 2013-05-22 | 攀钢集团攀枝花钢钒有限公司 | Starting-up production method of sintering machine |
| CN104792176A (en) * | 2015-04-07 | 2015-07-22 | 马钢(集团)控股有限公司 | Device and method for starting production of belt type sintering machine |
| CN104896938A (en) * | 2015-06-29 | 2015-09-09 | 马钢(集团)控股有限公司 | Automatic sintering ignition negative-pressure control device |
| CN106524764A (en) * | 2016-10-28 | 2017-03-22 | 马鞍山钢铁股份有限公司 | Low negative pressure ignition control device and method |
| CN107631633A (en) * | 2017-09-12 | 2018-01-26 | 首钢集团有限公司 | Reduce the control method and sintering machine of sintering machine wind box negative pressure |
| CN110220381A (en) * | 2019-06-10 | 2019-09-10 | 成渝钒钛科技有限公司 | A kind of vanadium titanium sintering tiny structure ignition method |
-
2005
- 2005-08-31 CN CN 200520031702 patent/CN2859251Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017528A (en) * | 2012-12-19 | 2013-04-03 | 中冶长天国际工程有限责任公司 | Micropressure regulating system for sintering ignition furnace |
| CN103017528B (en) * | 2012-12-19 | 2015-03-11 | 中冶长天国际工程有限责任公司 | Micropressure regulating system for sintering ignition furnace |
| CN103114199A (en) * | 2013-03-12 | 2013-05-22 | 攀钢集团攀枝花钢钒有限公司 | Starting-up production method of sintering machine |
| CN103114199B (en) * | 2013-03-12 | 2014-10-29 | 攀钢集团攀枝花钢钒有限公司 | Starting-up production method of sintering machine |
| CN104792176A (en) * | 2015-04-07 | 2015-07-22 | 马钢(集团)控股有限公司 | Device and method for starting production of belt type sintering machine |
| CN104896938A (en) * | 2015-06-29 | 2015-09-09 | 马钢(集团)控股有限公司 | Automatic sintering ignition negative-pressure control device |
| CN104896938B (en) * | 2015-06-29 | 2017-05-31 | 马钢(集团)控股有限公司 | A kind of sintering ignition negative pressure automatic control device |
| CN106524764A (en) * | 2016-10-28 | 2017-03-22 | 马鞍山钢铁股份有限公司 | Low negative pressure ignition control device and method |
| CN106524764B (en) * | 2016-10-28 | 2019-08-13 | 马鞍山钢铁股份有限公司 | A kind of lower negative pressure ignition control device and method |
| CN107631633A (en) * | 2017-09-12 | 2018-01-26 | 首钢集团有限公司 | Reduce the control method and sintering machine of sintering machine wind box negative pressure |
| CN110220381A (en) * | 2019-06-10 | 2019-09-10 | 成渝钒钛科技有限公司 | A kind of vanadium titanium sintering tiny structure ignition method |
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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: 20070117 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |