CN2242432Y - Coal powder jetting tube with adjustable stable combustion device for cement rotary-drum furnace - Google Patents
Coal powder jetting tube with adjustable stable combustion device for cement rotary-drum furnace Download PDFInfo
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- CN2242432Y CN2242432Y CN 95222683 CN95222683U CN2242432Y CN 2242432 Y CN2242432 Y CN 2242432Y CN 95222683 CN95222683 CN 95222683 CN 95222683 U CN95222683 U CN 95222683U CN 2242432 Y CN2242432 Y CN 2242432Y
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- coal powder
- coal
- tube
- combustion device
- stable combustion
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Abstract
The utility model relates to a coal powder jetting tube with an adjustable stable combustion device for cement rotary kilns, which is composed of a coal powder air duct, a shrinking tube, a straight tube, a blunt body stable combustion device and a regulating mechanism. The axial position of the stable combustion device at the coal powder jetting tube can be regulated to achieve the purpose of changing the shape and the position of flame and avoid that temperature concentrates at a certain place to burn out the surface of a kiln, so the utility model is suitable for kilns with different models to burn cement of different types. The utility model has the characteristics of enhanced mixing, enhanced combustion, quick temperature rise, short black fire head, low heat consumption and wide adaptability to coal ranks; when the coal powder jetting tube is used, under the condition that a coal supply system of the cement rotary kiln is not changed, the coal powder jetting tube can be immediately used after installation.
Description
Technical field is a kind of novel energy-conserving device under the utility model.
Since own first cement rotary kiln of China, used one way of coal injection always, as, common one way of coal injection, the one way of coal injection of end band swirl vane, the one way of coal injection of middle part band swirl vane and the one way of coal injection of twice change warp.The problem that these several coal powder injection pipes exist is: primary air flow is big, incomplete combustion, and hear rate is big, and black duration and degree of heating is long, moves behind the high-temperature region, can only burn high-quality bituminous coal.
At the seventies, triple channel coal powder injection pipe has abroad appearred, but its complex structure, processing difficulties, be difficult to guarantee three interchannel precision, be easy to distortion when at high temperature using, flame profile is destroyed, and want two high pressure positive blower air-supplies, the energy consumption height, noise is big.Therefore the promotion and application at home of triple channel coal powder injection pipe are restricted especially middle-size and small-size rotary kiln.
In the eighties, a kind of single channel coal burner (see figure 1) with flameholder has not appearred in China.It has the breeze airflow passage, and convergent divergent channel and collapsible tube are equipped with fixed flameholder in convergent divergent channel.The appearance of this burner, the shortcoming of all one way of coal injection before it has overcome, have mix fast, overheavy firing, the retention flame, black duration and degree of heating is short, primary air flow is little, to advantages such as coal adaptability are wide.Find but in industrial practice, used in these several years, its part that also comes with some shortcomings, because the position of the flameholder of this burner is fixed, then flame profile is non-adjustable, and outlet is one again and shrinks shower nozzle that temperature is too concentrated, therefore flame stings kliner coating, time has been grown kliner coating has been burnt out, and this burner only is applicable to the hollow kiln in addition, burns white cement.
Because there is above problem in prior art, and the present inventor proposes the coal powder injection pipe of the adjustable stabilizer of a kind of cement rotary kiln band, this coal powder injection pipe had both had the advantage of prior art, had overcome the deficiencies in the prior art part again.
In order to realize the purpose of the invention, the substance of technical solutions of the utility model is as follows:
The coal powder injection pipe of the adjustable stabilizer of the utility model cement rotary kiln band, Guan Youyi breeze airflow passage 1 of this coal powder injection, collapsible tube 2 peaceful straight tube 3 (see figure 2)s, collapsible tube 2 is between combustion powder gas channel 1 peaceful straight tube 3, and one affixed with it, an adjustable baffle flame-holder 4 is set in straight pipe 3, because the rear of baffle flame-holder forms the recirculating zone, the swiftly flowing breeze airflow of flame ignition in the recirculating zone, flame is stablized, prolong the coal dust time of staying, reached the purpose of strengthening mixing of wind coal and overheavy firing.The governor motion of this baffle flame-holder is that gear 7, tooth bar 6 are formed, tooth bar 6 is affixed with iron 5, gear 7 and tooth bar 6 interlock mutually, its axle is connected with tube wall, drive tooth bar 6, iron 5, stabilizer 4 by transmitting gear 7, with the regulation and control baffle flame-holder the coal powder injection tubular axis to the position, to regulate flame profile, reach the purpose of not stinging kliner coating.
The utility model has following advantage compared with the prior art:
1, the position of baffle flame-holder of the present utility model is adjustable, reaching the purpose of regulating flame profile and position, thereby has avoided the somewhere temperature too to concentrate and the thorn kliner coating.
2, this coal powder injection pipe has and strengthen to mix, overheavy firing, and the characteristics of quick heating, strong to coal adaptability, can burn the coal of low thermal mass 4500 kilocalories, also can burn low-volatile coal (Vf=11%) and ash-rich 40% coal.
3, this coal powder injection pipe is suitable for different kiln types, as wet-process rotary kiln, and the hollow kiln of band cogeneration, lepol kiln, precalciner kiln etc.Be suitable for and burn variety classes cement, as ordinary cement, white cement is seized by force special cements such as cement, oil-well cement greatly.
Accompanying drawing
The single channel coal burner schematic diagram of Fig. 1, cement rotary kiln band flameholder.
The coal injection pipe structure schematic diagram of Fig. 2, the adjustable stabilizer of cement rotary kiln band.
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
The coal powder injection pipe of the adjustable stabilizer of cement rotary kiln band, it is by breeze airflow passage 1, collapsible tube 2, straight pipe 3, stabilizer 4 and governor motion are formed.Collapsible tube 2 one ends are connected with breeze airflow passage 1, its other end is connected with straight pipe 3, a baffle flame-holder 4 is set in straight pipe 3, stabilizer 4 is fixed with one with iron 5, the other end at iron 5 has a governor motion, it by be fixed on the iron 5 tooth bar 6 with its mutually the gear 7 of interlock form, its axle of gear 7 is connected with tube wall.And by sleeve 8 and support bar 9 with baffle flame-holder 4, iron 5, tooth bar 6 are fixed on the inwall of coal powder injection pipe, are on the coal powder injection tube hub line position to guarantee iron 5 and stabilizer 4.When breeze airflow when pipeline 1 flows into collapsible tube 2, air velocity is accelerated, and when breeze airflow is flowed through baffle flame-holder 4, in the back of stabilizer 4, then forms the recirculating zone, high-temperature flue gas is constantly lighted breeze airflow in the recirculating zone.Because strengthening, it mixes, the retention flame, and overheavy firing, quick heating, it is smooth therefore to hang kliner coating, the efficiency of combustion height.By transmitting gear 7, drive tooth bar 6.Regulate baffle flame-holder at the coal powder injection tubular axis to the present position, reaching the adjusting flame profile, the purpose of flame location prevents that the somewhere flame temperature from too concentrating and burn out kliner coating.This coal powder injection pipe is adapted to different kiln types, as wet-process rotary kiln, and the hollow kiln of band cogeneration, lepol kiln, precalciner kiln, aluminium oxide calcination rotary kiln.Also adapt to and burn variety classes cement.As ordinary cement, white cement is seized by force special cements such as cement, oil-well cement greatly.
The utility model is made, and processing is installed simply, and is easy to use, under the situation that does not change the former coal-supply system of cement rotary kiln, loads onto this coal powder injection pipe and can use.Be specially adapted to the transformation of middle-size and small-size rotary kiln.
Claims (2)
1, the coal powder injection pipe of the adjustable stabilizer of cement rotary kiln band, it has breeze airflow passage 1, and collapsible tube 2 peaceful straight tubes 3 is characterized in that a baffle flame-holder 4 is set in straight pipe 3, and this stabilizer 4 is adjustable to its position along the coal powder injection tubular axis.
2, according to the coal powder injection pipe of the adjustable stabilizer of the said cement rotary kiln band of claim 1, the governor motion that it is characterized in that this baffle flame-holder is by gear 7, tooth bar 6 is formed, tooth bar and iron 5 are affixed, gear 7 and tooth bar 6 interlock mutually, and its axle is connected with tube wall, drive tooth bar 6 by transmitting gear 7, iron 5, stabilizer 4 is to regulate the position of stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222683 CN2242432Y (en) | 1995-10-10 | 1995-10-10 | Coal powder jetting tube with adjustable stable combustion device for cement rotary-drum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222683 CN2242432Y (en) | 1995-10-10 | 1995-10-10 | Coal powder jetting tube with adjustable stable combustion device for cement rotary-drum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242432Y true CN2242432Y (en) | 1996-12-11 |
Family
ID=33869959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95222683 Expired - Fee Related CN2242432Y (en) | 1995-10-10 | 1995-10-10 | Coal powder jetting tube with adjustable stable combustion device for cement rotary-drum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242432Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997656A (en) * | 2012-08-14 | 2013-03-27 | 梁燕龙 | Automatic movable tunnel kiln combustion device and method thereof |
| CN103697692A (en) * | 2012-09-27 | 2014-04-02 | 梁燕龙 | Mechanically adjustable combustion device and method for kiln |
| CN105135875A (en) * | 2015-08-24 | 2015-12-09 | 安徽芜湖海螺建筑安装工程有限责任公司 | Ash deposition prevention construction method for head of rotary cement kiln coal-injection duct |
| CN109341330A (en) * | 2018-11-29 | 2019-02-15 | 扬州市银焰机械有限公司 | A kind of rotary kiln burner intelligence control system |
-
1995
- 1995-10-10 CN CN 95222683 patent/CN2242432Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997656A (en) * | 2012-08-14 | 2013-03-27 | 梁燕龙 | Automatic movable tunnel kiln combustion device and method thereof |
| CN103697692A (en) * | 2012-09-27 | 2014-04-02 | 梁燕龙 | Mechanically adjustable combustion device and method for kiln |
| CN105135875A (en) * | 2015-08-24 | 2015-12-09 | 安徽芜湖海螺建筑安装工程有限责任公司 | Ash deposition prevention construction method for head of rotary cement kiln coal-injection duct |
| CN105135875B (en) * | 2015-08-24 | 2017-03-22 | 安徽芜湖海螺建筑安装工程有限责任公司 | Ash deposition prevention construction method for head of rotary cement kiln coal-injection duct |
| CN109341330A (en) * | 2018-11-29 | 2019-02-15 | 扬州市银焰机械有限公司 | A kind of rotary kiln burner intelligence control system |
| CN109341330B (en) * | 2018-11-29 | 2024-02-13 | 扬州市银焰机械有限公司 | Intelligent control system for rotary kiln burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |