CN206739867U - A kind of rotary kiln Secondary Air air-intake device - Google Patents
A kind of rotary kiln Secondary Air air-intake device Download PDFInfo
- Publication number
- CN206739867U CN206739867U CN201720377245.5U CN201720377245U CN206739867U CN 206739867 U CN206739867 U CN 206739867U CN 201720377245 U CN201720377245 U CN 201720377245U CN 206739867 U CN206739867 U CN 206739867U
- Authority
- CN
- China
- Prior art keywords
- secondary air
- kiln
- air
- rotary kiln
- main burner
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000000630 rising effect Effects 0.000 claims abstract 2
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 22
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses a kind of rotary kiln Secondary Air air-intake device,Including rotary kiln,It is located at turn around rising the kiln head cover of sealing process at kiln kiln hood,Kiln head cover middle part is equipped with main burner,Kiln hood shroud rim is equipped with some secondary air intake pipes stretched into rotary kiln,Secondary air intake pipe is distributed in the upper position of rotary kiln,The rotary kiln Secondary Air air-intake device,Secondary air intake pipe is located to the edge of kiln head cover,And it is located at turn around the upper position of kiln,Will not be by rotary kiln end outlet material secondary oxidation in secondary air intake pipe air-out,In the case of influenceing material also proper mass,Make secondary air intake pipe away from main burner,So,So as to the secondary air intake pipe away from main burner,Its air-out does not interfere with the flame profile of main burner,Compared to existing Secondary Air air-intake device,The flame stabilization of main burner in rotary kiln,Material also proper mass is greatly enhanced.
Description
Technical field
Metallurgical continuous casting field is the utility model is related to, particularly relates to a kind of rotary kiln Secondary Air air-intake device.
Background technology
Rotary kiln main burner, as shown in figure 1, including coal powder injection air channel 11 that is coaxial and setting gradually from inside to outside and exogenous wind
Road 12.During work, for the fuel sprayed in coal powder injection air channel 11 under aerobic conditions, burning forms flame, the wind that outer air duct 12 sprays
Then the flame in it is protected, makes flame that there is certain shape, to ensure the also proper mass to material in rotary kiln.
The condition of main burner oxy combustion, generally provided up by Secondary Air air-intake device.As shown in figure 1, existing Secondary Air air intake
Device, including the Secondary Air air inlet duct 13 on main burner, Secondary Air air inlet duct 13 is with being located in outside outer air duct 12, by two
Secondary wind air inlet duct 13 is blown into air into rotary kiln, to provide oxygen for main burner burning.This kind of Secondary Air air-intake device, two
In the case that air-out is larger in secondary wind air inlet duct 13, the air-out in Secondary Air air inlet duct 13 is easily mixed into the air-out of outer air duct 12,
Change the shape of flame, and then influence the also proper mass of material in rotary kiln, crystallization is easily formed in rotary kiln.
The content of the invention
The purpose of this utility model is to provide a kind of rotary kiln Secondary Air air-intake device.
Realizing the technical scheme of the utility model purpose is, a kind of rotary kiln Secondary Air air-intake device, including rotary kiln, position
The kiln head cover of sealing process at rotary kiln end, kiln head cover middle part are equipped with main burner, and kiln hood shroud rim is worn
There are some secondary air intake pipes stretched into rotary kiln, secondary air intake pipe is distributed in the upper position of rotary kiln.
Further, each secondary air intake pipe is provided with regulating switch valve.According to the distribution of material in rotary kiln, regulation
The air output of each secondary air intake pipe, make the more position of material distribution, air output is big, and the fire close to the side falls into then relatively strong, material
Few position is distributed, air output is small, and the fire close to the side is sunken then weaker, in this way, to realize that material is equably by fire in rotary kiln
Flame acts on.
Further, some secondary air intake pipes are distributed in kiln head cover using main burner as in the circumference in the center of circle.In this way, with
Just under rule distributed architecture, the air output of secondary air intake pipe can be more accurately controlled.
The utility model rotary kiln Secondary Air air-intake device, secondary air intake pipe is located at the edge of kiln head cover, and is located at
The upper position of rotary kiln, rotary kiln end outlet material secondary oxidation will not be influenceed material in secondary air intake pipe air-out
Also in the case of proper mass, make secondary air intake pipe away from main burner, in this way, so as to the Secondary Air air intake away from main burner
Pipe, its air-out do not interfere with the flame profile of main burner, compared to existing Secondary Air air-intake device, main burner in rotary kiln
Flame stabilization, material also proper mass are greatly enhanced.
Brief description of the drawings
Fig. 1 is the structural representation of existing rotary kiln main burner and Secondary Air air-intake device；
Fig. 2 is the main structure diagram of the utility model rotary kiln Secondary Air air-intake device；
Fig. 3 is the right side structural representation of the utility model rotary kiln Secondary Air air-intake device.
Embodiment
As shown in Figures 2 and 3, a kind of rotary kiln Secondary Air air-intake device, including rotary kiln 1, be located at turn around at the kiln hood of kiln 1
The kiln head cover 2 of sealing process is played, the middle part of kiln head cover 2 is equipped with main burner 3, and the edge of kiln head cover 2 is equipped with some stretch into
Secondary air intake pipe 4 in rotary kiln 1, secondary air intake pipe 4 are distributed in the upper position of rotary kiln 1.Each Secondary Air air intake
Pipe 4 is provided with regulating switch valve 5.Some secondary air intake pipes 4 are distributed in kiln head cover 2 using main burner as in the circumference in the center of circle.
The utility model rotary kiln Secondary Air air-intake device, secondary air intake pipe 4 is located to the edge of kiln head cover 2, so as to
Secondary air intake pipe 4 is located away the main burner 3 of the middle part of kiln head cover 2；Secondary air intake pipe 4 is distributed in rotary kiln 1
Upper position, make bottom of the air-out of secondary air intake pipe 4 away from rotary kiln 1, i.e., to go back away from what is dropped out by the bottom of rotary kiln 1
Former material, avoid as-reduced material from meeting oxygen secondary oxidation, and influence material also proper mass.
The utility model rotary kiln Secondary Air air-intake device, secondary air intake pipe 4 is located to the edge of kiln head cover 2, and position
In the upper position of rotary kiln 1, rotary kiln end outlet material secondary oxidation will not be influenceed in the air-out of secondary air intake pipe 4
In the case of material also proper mass, make secondary air intake pipe 4 away from main burner 3, in this way, so as to two away from main burner 3
Secondary wind blast pipe 4, its air-out do not interfere with the flame profile of main burner 3, compared to existing Secondary Air air-intake device, in rotary kiln
The flame stabilization of main burner 3, material also proper mass are greatly enhanced.
The utility model rotary kiln Secondary Air air-intake device, it is the distribution according to material in rotary kiln 1, adjusts each Secondary Air
The air output of blast pipe 4, make the more position of material distribution, air output is big, and the fire close to the side is fallen into then relatively by force, and material distribution is few
Position, air output is small, the fire close to the side fall into it is then weaker, in this way, realize in rotary kiln 1 material equably by flame interaction, compared with
Goodly, each secondary air intake pipe 4 is provided with regulating switch valve 5；For ease of being more accurately controlled the air-out of secondary air intake pipe 4
Amount, it is preferred that some secondary air intake pipes 4 are distributed in kiln head cover 2 using main burner as in the circumference in the center of circle.
Claims (3)
1. a kind of rotary kiln Secondary Air air-intake device, including rotary kiln, the kiln head cover for being located at turn around rising sealing process at kiln kiln hood,
Kiln head cover middle part is equipped with main burner, it is characterised in that：Kiln hood shroud rim be equipped with it is some stretch into rotary kiln two
Secondary wind blast pipe, secondary air intake pipe are distributed in the upper position of rotary kiln.
2. rotary kiln Secondary Air air-intake device according to claim 1, it is characterised in that：Set on each secondary air intake pipe
There is regulating switch valve.
3. rotary kiln Secondary Air air-intake device according to claim 1, it is characterised in that：Some secondary air intake pipe distributions
In in circumference of the kiln head cover using main burner as the center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377245.5U CN206739867U (en) | 2017-04-12 | 2017-04-12 | A kind of rotary kiln Secondary Air air-intake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377245.5U CN206739867U (en) | 2017-04-12 | 2017-04-12 | A kind of rotary kiln Secondary Air air-intake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206739867U true CN206739867U (en) | 2017-12-12 |
Family
ID=60559873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720377245.5U Expired - Fee Related CN206739867U (en) | 2017-04-12 | 2017-04-12 | A kind of rotary kiln Secondary Air air-intake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206739867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594757A (en) * | 2019-10-14 | 2019-12-20 | 科领环保股份有限公司 | High-efficiency hazardous waste incinerator capable of preventing material returning and method for preventing material returning |
-
2017
- 2017-04-12 CN CN201720377245.5U patent/CN206739867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594757A (en) * | 2019-10-14 | 2019-12-20 | 科领环保股份有限公司 | High-efficiency hazardous waste incinerator capable of preventing material returning and method for preventing material returning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |