CN207113574U - Cement kiln dore furnace with online vortex precombustion chamber - Google Patents
Cement kiln dore furnace with online vortex precombustion chamber Download PDFInfo
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- CN207113574U CN207113574U CN201720797510.5U CN201720797510U CN207113574U CN 207113574 U CN207113574 U CN 207113574U CN 201720797510 U CN201720797510 U CN 201720797510U CN 207113574 U CN207113574 U CN 207113574U
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- precombustion chamber
- dore furnace
- tremie pipe
- pipe
- kiln
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Abstract
The utility model provides the cement kiln dore furnace with online vortex precombustion chamber, including cyclone preheater, tripper, the first tremie pipe, the second tremie pipe, tertiary-air pipe, benefit wind branch pipe, dore furnace, denitrogenation burner, low NO, precombustion chamber, precombustion chamber tremie pipe, kiln tail smoke-box；The precombustion chamber includes upper cylindrical housing and lower cone shape housing, and the denitrogenation burner is arranged on the lower cone shape housing of precombustion chamber, and the low NO is arranged on the upper cylindrical housing of precombustion chamber；The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.The beneficial effects of the utility model are：Denitrogenation burner burns in low oxygen content kiln exit gas, produces reducing atmosphere, reduces NOX, reduces the discharge of nitrogen oxides, enters the apparent resolution ratio of kiln raw material and improves.The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.
Description
Technical field
It the utility model is related to a kind of cement kiln dore furnace of the online vortex precombustion chamber of band.
Background technology
Technology of producing cement is decomposed outside the positive Efforts To Develop new type dry kiln in China, the technology be exactly preheater and rotary kiln it
Between set up dore furnace.Dore furnace is the core of precalcining system, and it assume responsibility for coal dust firing in precalciner system, flag and drum
Heat exchange and carbonate decomposition task, make the resolution ratio of kiln raw material reach more than 90%, substantially increase rotary kiln unit and effectively hold
Long-pending yield.Market competition is increasingly fierce in recent years, and the cement production enterprise as energy consumption rich and influential family is clear-headed to be recognized and can only fully dig
Pick industry energy conservation consumption reduction, the potentiality that increase production and improve productivity can be based on invincible positions.
The major technique defect of the cement kiln dore furnace of online spin chamber is：Precombustion chamber makes raw material edge due to centrifugal action
Four peripheral wall surfaces of spin chamber drop to the mouth that spurts, and part raw meal powder is raised by boiling again due to the effect of kiln exit gas ascending air
Rise, from precombustion chamber centrally through into dore furnace, because raw material decomposition is the endothermic reaction, this is resulted at a temperature of coal dust firing
Drop, so as to weaken the reducing atmosphere of coal dust firing, the product increase of nitrogen oxides；On the other hand, sprayed due to burner
Breeze airflow is to spray into diagonally downward, disturbs part raw meal powder and enters dore furnace, simultaneously because the raw meal powder that spin chamber is collected
Dispersiveness is smaller, and caloric receptivity not enough fails to decompose completely in addition, and part raw material do not decompose completely just directly enters kiln from kiln tail smoke-box,
Cause the decline into the apparent resolution ratio of kiln raw material.
The application is improved for deficiency present in online vortex precombustion chamber Calciner Design, is given birth to improving into kiln
While expecting apparent resolution ratio, reduce the discharge of nitrogen oxides, substantially increase China's cement industry calcining technology level, can
Increase new revenue generator for China's cement industry, and meet the fundamental policy policy of country, meet country long term growth and
Planning, has higher economic benefit and social benefit.
Utility model content
The utility model provides the cement kiln dore furnace with online vortex precombustion chamber, realize it is low exploitation, usury use,
Low emission, while resolution ratio apparent into kiln raw material is improved, reduce the discharge of nitrogen oxides.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
Cement kiln dore furnace with online vortex precombustion chamber, including cyclone preheater, tripper, the first tremie pipe,
Two tremie pipes, tertiary-air pipe, mend wind branch pipe, dore furnace, denitrogenation burner, low NO, precombustion chamber, precombustion chamber tremie pipe,
Kiln tail smoke-box；
Characterized in that, the precombustion chamber includes upper cylindrical housing and lower cone shape housing, the denitrogenation burning
Device is arranged on the lower cone shape housing of precombustion chamber, and the low NO is arranged at the upper cylindrical housing of precombustion chamber
On；
The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that denitrogenation burner contains in hypoxemia
Burnt in amount kiln exit gas, produce reducing atmosphere, reduce NOX.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that dore furnace, precombustion chamber, pre-burning
Room tremie pipe, kiln tail smoke-box are sequentially connected from the top down.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that cyclone preheater passes through sub-material
Device carries out material diversion, and tripper is connected by the first tremie pipe with dore furnace all the way, and tripper another way is by under second
Expects pipe is connected with precombustion chamber.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that the lower cone shape of precombustion chamber
Water conservancy diversion chute is set on housing.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that the water conservancy diversion chute connects out
Expects pipe.
The beneficial effects of the utility model are：Denitrogenation burner burns in low oxygen content kiln exit gas, produces also Primordial Qi
Atmosphere, NOX is reduced, reduces the discharge of nitrogen oxides, entered the apparent resolution ratio of kiln raw material and improve.
The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is schematic diagram of the present utility model.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
Cement kiln dore furnace with online vortex precombustion chamber, including cyclone preheater（1）, tripper（2）, the first blanking
Pipe（3）, the second tremie pipe（4）, tertiary-air pipe（5）, mend wind branch pipe（6）, dore furnace（7）, denitrogenation burner（8）, low nitrogen burning
Device（9）, precombustion chamber（10）, precombustion chamber tremie pipe（11）, kiln tail smoke-box（12）；
Characterized in that, the precombustion chamber（10）Including upper cylindrical housing and lower cone shape housing, the denitrogenation
Burner（8）It is arranged at precombustion chamber（10）Lower cone shape housing on, the low NO（9）It is arranged at precombustion chamber（10）
Upper cylindrical housing on；
The benefit wind branch pipe（6）UNICOM's branch pipe three times（5）With precombustion chamber tremie pipe（11）, vertebra portion part wind speed is improved, is prevented
Only collapse material.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that denitrogenation burner contains in hypoxemia
Burnt in amount kiln exit gas, produce reducing atmosphere, reduce NOX.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that dore furnace, precombustion chamber, pre-burning
Room tremie pipe, kiln tail smoke-box are sequentially connected from the top down.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that cyclone preheater passes through sub-material
Device carries out material diversion, and tripper is connected by the first tremie pipe with dore furnace all the way, and tripper another way is by under second
Expects pipe is connected with precombustion chamber.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that the lower cone shape of precombustion chamber
Water conservancy diversion chute is set on housing.
The cement kiln dore furnace of the online vortex precombustion chamber of foregoing band, it is characterised in that the water conservancy diversion chute connects out
Expects pipe.
The beneficial effects of the utility model are：Denitrogenation burner burns in low oxygen content kiln exit gas, produces also Primordial Qi
Atmosphere, NOX is reduced, reduces the discharge of nitrogen oxides, entered the apparent resolution ratio of kiln raw material and improve.
The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change
Enter and deform and also should be regarded as the scope of protection of the utility model.
Claims (6)
1. the cement kiln dore furnace with online vortex precombustion chamber, including cyclone preheater, tripper, the first tremie pipe, second
Tremie pipe, tertiary-air pipe, mend wind branch pipe, dore furnace, denitrogenation burner, low NO, precombustion chamber, precombustion chamber tremie pipe, kiln
Tail smoke-box；
Characterized in that, the precombustion chamber includes upper cylindrical housing and lower cone shape housing, the denitrogenation burner is set
It is placed on the lower cone shape housing of precombustion chamber, the low NO is arranged on the upper cylindrical housing of precombustion chamber；
The Bu Feng branch pipes UNICOM branch pipe and precombustion chamber tremie pipe three times, vertebra portion part wind speed is improved, prevents the material that collapses.
2. the cement kiln dore furnace of the online vortex precombustion chamber of band according to claim 1, it is characterised in that denitrogenation is burnt
Device burns in low oxygen content kiln exit gas, produces reducing atmosphere, reduces NOX.
3. the cement kiln dore furnace of the online vortex precombustion chamber of band according to claim 1, it is characterised in that dore furnace,
Precombustion chamber, precombustion chamber tremie pipe, kiln tail smoke-box are sequentially connected from the top down.
4. the cement kiln dore furnace of the online vortex precombustion chamber of band according to claim 1, it is characterised in that whirlwind preheats
Device carries out material diversion by tripper, and tripper is connected by the first tremie pipe with dore furnace all the way, tripper another way
It is connected by the second tremie pipe with precombustion chamber.
5. the cement kiln dore furnace of the online vortex precombustion chamber of band according to claim 1, it is characterised in that precombustion chamber
Water conservancy diversion chute is set on lower cone shape housing.
6. the cement kiln dore furnace of the online vortex precombustion chamber of band according to claim 5, it is characterised in that the water conservancy diversion
Chute connects discharge nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720797510.5U CN207113574U (en) | 2017-07-04 | 2017-07-04 | Cement kiln dore furnace with online vortex precombustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720797510.5U CN207113574U (en) | 2017-07-04 | 2017-07-04 | Cement kiln dore furnace with online vortex precombustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207113574U true CN207113574U (en) | 2018-03-16 |
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ID=61587264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720797510.5U Active CN207113574U (en) | 2017-07-04 | 2017-07-04 | Cement kiln dore furnace with online vortex precombustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207113574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595096A (en) * | 2020-12-04 | 2021-04-02 | 贵州省鑫瀚蓝环保科技有限公司 | Denitrification combustion method for cement kiln production |
-
2017
- 2017-07-04 CN CN201720797510.5U patent/CN207113574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595096A (en) * | 2020-12-04 | 2021-04-02 | 贵州省鑫瀚蓝环保科技有限公司 | Denitrification combustion method for cement kiln production |
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