CN205619773U - Structure of dore furnace cubic tuber pipe - Google Patents
Structure of dore furnace cubic tuber pipe Download PDFInfo
- Publication number
- CN205619773U CN205619773U CN201620412656.9U CN201620412656U CN205619773U CN 205619773 U CN205619773 U CN 205619773U CN 201620412656 U CN201620412656 U CN 201620412656U CN 205619773 U CN205619773 U CN 205619773U
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- dore furnace
- tertiary
- air pipe
- centrum
- tuber pipe
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Abstract
The utility model relates to a structure of dore furnace cubic tuber pipe belongs to cement manufacture equipment field, including dore furnace centrum (2), dore furnace cylinder (1) is connected to dore furnace centrum (2) upper end, and kiln tail smoke -box throat (3) is connected to dore furnace centrum (2) lower extreme, connects cubic tuber pipe (5) on dore furnace centrum (2), and the entry shape of cubic tuber pipe (5) is the trapezium structure, the cubic tuber pipe of cubic tuber pipe (5) above the length of face (6) be greater than the length of face (4) below the cubic tuber pipe, the intraductal limit of tertiary air face (7) are the vertical guide, the position of the intraductal limit of tertiary air face (7) is no longer than the axial lead of dore furnace centrum (2). The utility model discloses simple structure, reasonable in design can make dore furnace cone position gas flow field stable even, and is less to the influence of the ventilation in the rotary kiln, has stronger practicality.
Description
Technical field
The utility model relates to the structure of a kind of dore furnace tertiary-air pipe, belongs to field of cement production equipment.
Background technology
At present, the tertiary-air pipe at general dore furnace enters in furnace structure, and most of tertiary-air pipe are to enter dore furnace cone obliquely
Body region, also there are level and dore furnace cone to connect, but when using this structure connected horizontally, tertiary-air pipe
Cross section be mostly rounded.The tertiary-air pipe of the above type of attachment, all easily causes the gas at dore furnace cone position
Flow field is irregular, and the position forming eddy current is relatively more, makes the coal dust of entrance dore furnace and material scattered uneven in stove, shadow
Rung the burning of coal dust and the heat exchanger effectiveness of raw material, particularly the inner edge distance dore furnace axial line of tertiary-air pipe closer or
When crossing axial line, the impact on the ventilation in kiln is bigger.
Utility model content
According to above deficiency of the prior art, problem to be solved in the utility model is: provide one can overcome drawbacks described above,
Simple in construction, reasonable in design, dore furnace cone position gas flowfield stable and uniform can be made, and to the Ventilation Effect in rotary kiln
The structure of little dore furnace tertiary-air pipe.
The utility model solves its technical problem and be the technical scheme is that
The structure of described dore furnace tertiary-air pipe, including dore furnace centrum, dore furnace centrum upper end connects dore furnace cylinder, decomposes
Stove centrum lower end connects kiln tail smoke-box reducing, and dore furnace centrum connects tertiary-air pipe, and the entry shape of tertiary-air pipe is trapezium structure,
The length in the face, tertiary-air pipe top of described tertiary-air pipe is more than the length in the following face of tertiary-air pipe, and tertiary-air pipe inner edge face is vertical
Face, the position in tertiary-air pipe inner edge face is less than the axial line of dore furnace centrum.
The structure of described dore furnace tertiary-air pipe can make the trapezoidal shape of gas enter, it is ensured that swirling eddy is in dore furnace centrum
There is no dead angle, form a regular rotational flow field.Tertiary-air pipe inner edge face is certain less than the axial line of dore furnace centrum and holding
Distance, ensure that bar shape flue gas stream and swirling eddy constitute stable gas flowfield, keep system kiln two row wind
Balance, reduces the impact on revolution kiln ventilation.
Further preferably, the distance between the axial line of tertiary-air pipe inner edge face and dore furnace centrum is more than 100mm.Reduce to kiln
The impact of interior ventilation.
Further preferably, the face, tertiary-air pipe top of tertiary-air pipe and dore furnace centrum junction is the level of state setting.
The utility model is had the beneficial effect that
The structure of dore furnace tertiary-air pipe described in the utility model can reduce the shadow for bar shape flue gas stream for the swirling eddy
Ring, make the swirling eddy of tertiary-air pipe and the bar shape air-flow of kiln tail smoke-box form stably rational gas at dore furnace cone position
Flow field, in making kiln, two serial air balances are more reasonable, reduce the impact on revolution kiln ventilation, and then ensure coal
The quick fully burning of powder and raw material dispersed, may also operate as coal dust firing speed fast, and burn-off rate is high and raw material heat
The effect having exchanged, improves dore furnace and obtains performance, and save the energy, and simple in construction is reasonable in design, has good warp
Ji benefit and social benefit.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is side view of the present utility model；
Wherein, the 1st, dore furnace cylinder；2nd, dore furnace centrum；3rd, kiln tail smoke-box reducing；4th, the following face of tertiary-air pipe；5th, three
Secondary airduct；6th, face, tertiary-air pipe top；7th, tertiary-air pipe inner edge face.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further:
As Figure 1-Figure 2, the structure of dore furnace tertiary-air pipe described in the utility model, including dore furnace centrum 2, dore furnace vertebra
Body 2 upper end connects dore furnace cylinder 1, and dore furnace centrum 2 lower end connects kiln tail smoke-box reducing 3, and dore furnace centrum 2 connects tertiary air
Pipe 5, the entry shape of tertiary-air pipe 5 is trapezium structure, and the length in the face, tertiary-air pipe top 6 of described tertiary-air pipe 5 is more than three times
The length in the following face of airduct 4, tertiary-air pipe inner edge face 7 is vertical guide, and the position in tertiary-air pipe inner edge face 7 is less than dore furnace centrum 2
Axial line.
Distance between described tertiary-air pipe inner edge face 7 and the axial line of dore furnace centrum 2 is more than 100mm.Tertiary-air pipe 5 and decomposition
The face, tertiary-air pipe top 6 of stove centrum 2 junction is the level of state setting.
Operation principle of the present utility model and use process:
Air-flow in dore furnace is from two places, and a part is flue gas out in rotary kiln, and another part is from three times
The air that airduct 5 comes.In rotary kiln flue gas out by the kiln tail smoke-box reducing 3 of dore furnace cone 2 bottom come when
Wait, in dore furnace cone 2, form the air-flow spurting upwards；The air that tertiary-air pipe 5 is come in is formed in dore furnace cone 2
Swirling eddy, this two parts air-flow defines the flow field that churning combines in dore furnace cone 2, this flow field uniformity and stable
Property directly affects the stable type of whole firing system.
The utility model is when by tertiary-air pipe 5 air intake, and due to the trapezoidal cross sectional shape of air inlet, the shape that gas enters is also
Being trapezoidal, such swirling eddy does not just have dead angle at dore furnace cone 2 position, can form a regular rotational flow field.
And there is a segment distance in tertiary-air pipe inner edge face 7 apart from the axial line of dore furnace cone 2, kiln tail cigarette below dore furnace cone 2
The bar shape flue gas stream come in room reducing 3 just constitutes stable gas flowfield with swirling eddy.Due to tertiary-air pipe inner edge face 7
Having a segment distance with the axial line of dore furnace, therefore, the size of Whirl deposite tank affects shadow to the air-flow coming in kiln tail smoke-box reducing 3
Ring smaller, be so conducive to the balance of system kiln two row wind, and interactive effect is little, more convenient during construction,
Simple in construction, reasonable in design, there is stronger practicality.
The utility model is not limited in above-mentioned detailed description of the invention, and those of ordinary skill in the art are in essential scope of the present utility model
Change, remodeling, interpolation or the replacement inside made, also should belong to protection domain of the present utility model.
Claims (3)
1. a structure for dore furnace tertiary-air pipe, including dore furnace centrum (2), dore furnace centrum (2) upper end connects decomposes
Furnace stay body (1), dore furnace centrum (2) lower end connects kiln tail smoke-box reducing (3), it is characterised in that: dore furnace centrum (2)
Upper connection tertiary-air pipe (5), the entry shape of tertiary-air pipe (5) is trapezium structure, three times of described tertiary-air pipe (5)
The length in face, airduct top (6) is more than the length in the following face of tertiary-air pipe (4), and tertiary-air pipe inner edge face (7) is vertical guide,
The position in tertiary-air pipe inner edge face (7) is less than the axial line of dore furnace centrum (2).
2. the structure of dore furnace tertiary-air pipe according to claim 1, it is characterised in that: described tertiary-air pipe inner edge face
(7) distance and between the axial line of dore furnace centrum (2) is more than 100mm.
3. the structure of dore furnace tertiary-air pipe according to claim 1, it is characterised in that: described tertiary-air pipe (5)
It is the level of state setting with the face, tertiary-air pipe top (6) of dore furnace centrum (2) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412656.9U CN205619773U (en) | 2016-05-06 | 2016-05-06 | Structure of dore furnace cubic tuber pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412656.9U CN205619773U (en) | 2016-05-06 | 2016-05-06 | Structure of dore furnace cubic tuber pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205619773U true CN205619773U (en) | 2016-10-05 |
Family
ID=57025867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620412656.9U Active CN205619773U (en) | 2016-05-06 | 2016-05-06 | Structure of dore furnace cubic tuber pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN205619773U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226627A (en) * | 2017-07-10 | 2017-10-03 | 合肥水泥研究设计院 | A kind of two grades of suspension calcining devices of active powder lime |
| CN107285651A (en) * | 2017-07-10 | 2017-10-24 | 合肥水泥研究设计院 | A kind of active powder lime suspension calcining device |
| CN114484423A (en) * | 2022-02-23 | 2022-05-13 | 中国中材国际工程股份有限公司 | Built-in vortex combustion device and combustion system for treating RDF (refuse derived fuel) of cement decomposing furnace |
-
2016
- 2016-05-06 CN CN201620412656.9U patent/CN205619773U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226627A (en) * | 2017-07-10 | 2017-10-03 | 合肥水泥研究设计院 | A kind of two grades of suspension calcining devices of active powder lime |
| CN107285651A (en) * | 2017-07-10 | 2017-10-24 | 合肥水泥研究设计院 | A kind of active powder lime suspension calcining device |
| CN114484423A (en) * | 2022-02-23 | 2022-05-13 | 中国中材国际工程股份有限公司 | Built-in vortex combustion device and combustion system for treating RDF (refuse derived fuel) of cement decomposing furnace |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |