CN205878894U - Rotary kiln sealing structure - Google Patents
Rotary kiln sealing structure Download PDFInfo
- Publication number
- CN205878894U CN205878894U CN201620710224.6U CN201620710224U CN205878894U CN 205878894 U CN205878894 U CN 205878894U CN 201620710224 U CN201620710224 U CN 201620710224U CN 205878894 U CN205878894 U CN 205878894U
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- CN
- China
- Prior art keywords
- hopper
- nonmetal
- labyrinth seal
- rotary kiln
- boiler tube
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- 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.)
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- Muffle Furnaces And Rotary Kilns (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a rotary kiln sealing structure has boiler tube and workbin, the one end at the boiler tube is established to the workbin cover, the workbin is including main portion of bleeding and sealing, the sealing is equipped with at least one labyrinth seal structure, labyrinth seal structure includes at least one deck labyrinth seals unit, the labyrinth seals unit includes nonmetal rotating ring of two quiet ring sums, nonmetal rotating ring is located between two quiet rings, be equipped with the main exhaust tube with the main portion of bleeding intercommunication on the workbin, the bottom of the side of workbin is equipped with main bin outlet, main bin outlet is located the owner portion of bleeding of workbin. The utility model discloses it is sealed effectual, can effectively prevent the leakage gaseous and material. The utility model discloses can prevent effectively that metallic impurity from not having the phenomenon of soft material.
Description
Technical field
This utility model relates to rotary kiln field, particularly to a kind of seal of rotary kiln structure.
Background technology
Rotary kiln, also known as rotary calcining kiln, can be divided into cement kiln, chemical metallurgy kiln and limekiln by processing material difference.Water
Stall is mainly used in calcination of cement clinker, point dry production cement kiln and the big class of wet production cement kiln two.Chemical metallurgy kiln is then
It is mainly used in the lean iron ore magnetic roasting of metallurgy industry steel plant；Chromium, josephinite oxidizing roasting；Refractory factory roasting high-aluminium vanadine
Ore deposit roasting grog, aluminium hydroxide；The class mineral such as chemical plant roasting chrome ore and chromite ore fine.Limekiln is used for roasting steel plant, ferrum
The active lime of Alloy Plant and light dolomite.Therefore rotary kiln is at many production industries such as building materials, metallurgy, chemical industry, environmental protection
In be widely used.
When rotary kiln uses in each big field at present, how to ensure that material does not leak when passing in and out hopper and have become as revolution
A subject matter in kiln use.Boiler tube in rotary kiln is to rotate, and hopper is static, it is therefore desirable to use dynamic close
Envelope.For this kind of movable sealing, traditional sealing means mainly has labyrinth seal, end face of flange to seal, fish scale lamination seals, filler
Seal.But, there is the shortcoming that sealing effectiveness is poor, device complicated or service life is short in traditional sealing means.
Meanwhile, in some industries, higher to feed quality requirements, while ensureing turnover hopper sealing effectiveness, as
What reduces sealing part abrasion is dropped the metallic pollution to material, has the most become a key issue.Traditional labyrinth seal mode
Moving sealing ring be typically constructed of metal, along with the continuous rotation of moving sealing ring, moving sealing ring constantly rubs with stationary ring, easy because of
Abrasion produces some metal impurities and falls in material, and material is caused metallic pollution.
Utility model content
The purpose of this utility model is to provide a kind of sealing effectiveness, without the seal of rotary kiln knot of abrasion foreign-matter contamination material
Structure.
The technical scheme realizing this utility model purpose is: this utility model has boiler tube and hopper；Described hopper is sheathed
One end at boiler tube；Described hopper includes main exhaust part and sealing；Described sealing is provided with at least one labyrinth seal structure；
Described labyrinth seal structure includes at least one of which labyrinth seal unit；Described labyrinth seal unit includes two stationary rings and one
Nonmetal rotating ring；Described stationary ring is fixedly installed on the inwall of hopper, nonmetal rotating ring be fixedly installed on the outer wall of boiler tube and
Nonmetal rotating ring is between two stationary rings；Described stationary ring and nonmetal rotating ring are all coaxial with boiler tube；Described hopper be provided with
The main exhaust tube of main exhaust part connection；The bottom of the side of described hopper is provided with main discharge gate；Described main discharge gate is positioned at hopper
Main exhaust part.
The outside of above-mentioned boiler tube is provided with thermal insulation layer；Described labyrinth seal structure is arranged on outside inwall and the thermal insulation layer of hopper
Between wall；Described stationary ring is fixedly installed on the inwall of hopper, and nonmetal rotating ring is fixedly installed on the outer wall of thermal insulation layer.
Above-mentioned sealing is provided with multiple labyrinth seal structure along the axis direction of boiler tube；Adjacent two labyrinth seal structures it
Between be secondary exhaust part；Described each secondary exhaust part is all connected with main exhaust tube by a secondary exhaust tube and communicates；The side of described hopper
The bottom in face is positioned in each secondary exhaust part and is equipped with secondary discharging opening.
Above-mentioned nonmetal rotating ring uses politef or uses graphite annulus.
As deformation, above-mentioned labyrinth seal unit includes a stationary ring and two nonmetal rotating rings；Described stationary ring is fixing to be set
Put on the inwall of hopper, nonmetal rotating ring is fixedly installed on the outer wall of boiler tube and stationary ring be positioned at two nonmetal rotating rings it
Between.
This utility model has positive effect: hermetic seal and labyrinth seal are applied in combination, significantly by (1) this utility model
Improve sealing, effectively prevent leaking of material and gas；
(2) labyrinth seal structure simple in construction, good sealing effect in this utility model, and be easily installed；
(3) in this utility model, nonmetal rotating ring is avoided that the situation of the metal impurity con material because of abrasion generation；
(4) in this utility model, main discharge gate and secondary discharging opening are easy to be deposited on some the large granular materials bottom hopper
Can discharge.
Accompanying drawing explanation
In order to make content of the present utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail this utility model, wherein
Fig. 1 is structural representation of the present utility model；
Fig. 2 is left view of the present utility model；
Fig. 3 is the structural representation of labyrinth seal unit in this utility model.
Detailed description of the invention
(embodiment one)
See that Fig. 1 to Fig. 3, this utility model have boiler tube 1 and hopper 2；Described hopper 2 is set in one end of boiler tube 1；Described
Hopper 2 includes main exhaust part 21 and sealing；Described sealing is provided with two labyrinth seal structures 3 along the axis direction of boiler tube 1；
Described labyrinth seal structure 3 includes one layer of labyrinth seal unit；Described labyrinth seal unit include two stationary rings 31 and one non-
Metal rotating ring 32；The outside of described boiler tube 1 is provided with thermal insulation layer 11；Described stationary ring 31 is fixedly installed on the inwall of hopper 2, non-gold
Genus rotating ring 32 is fixedly installed on the outer wall of thermal insulation layer 11 and nonmetal rotating ring 32 is between two stationary rings 31；Described stationary ring 31
All coaxial with boiler tube 1 with nonmetal rotating ring 32；Described hopper 2 is provided with the main exhaust tube 4 connected with main exhaust part 21；Described material
The bottom of the side of case 2 is provided with main discharge gate 5；Described main discharge gate 5 is positioned at the main exhaust part 21 of hopper 2.
It it is secondary exhaust part 22 between adjacent two labyrinth seal structures 3；Described each secondary exhaust part 22 is all taken out by a pair
Trachea 6 is connected with main exhaust tube 4 and communicates；The bottom of the side of described hopper 2 is positioned in each secondary exhaust part 22 and is equipped with secondary discharging
Mouth 7.
Described nonmetal rotating ring 32 is made up of politef.
(embodiment two)
In this utility model, nonmetal rotating ring 32 is graphite annulus.Other technologies feature is identical with embodiment one.
(embodiment three)
In this utility model, labyrinth seal unit includes a stationary ring 31 and two nonmetal rotating rings 32；Described stationary ring 31 is solid
Surely being arranged on the inwall of hopper 2, nonmetal rotating ring 32 is fixedly installed on the outer wall of boiler tube 1 and stationary ring 31 is positioned at two non-gold
Belong between rotating ring 32.Other technologies feature is identical with embodiment one.
(embodiment four)
In this utility model, labyrinth seal unit includes a stationary ring 31 and two nonmetal rotating rings 32；Described stationary ring 31 is solid
Surely being arranged on the inwall of hopper 2, nonmetal rotating ring 32 is fixedly installed on the outer wall of boiler tube 1 and stationary ring 31 is positioned at two non-gold
Belong between rotating ring 32.Other technologies feature is identical with embodiment two.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step describes in detail, be it should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, all should wrap
Within being contained in protection domain of the present utility model.
Claims (10)
1. a seal of rotary kiln structure, has boiler tube (1) and hopper (2)；It is characterized in that: described hopper (2) is set in stove
One end of pipe (1)；Described hopper (2) includes main exhaust part (21) and sealing；It is close that described sealing is provided with at least one labyrinth
Seal structure (3)；Described labyrinth seal structure (3) includes at least one of which labyrinth seal unit；Described labyrinth seal unit includes two
Individual stationary ring (31) and a nonmetal rotating ring (32)；Described stationary ring (31) is fixedly installed on the inwall of hopper (2), nonmetal dynamic
Ring (32) is fixedly installed on the outer wall of boiler tube (1) and nonmetal rotating ring (32) is positioned between two stationary rings (31)；Described stationary ring
And nonmetal rotating ring (32) is all coaxial with boiler tube (1) (31)；Described hopper (2) is provided with the master connected with main exhaust part (21) and takes out
Trachea (4)；The bottom of the side of described hopper (2) is provided with main discharge gate (5)；Described main discharge gate (5) is positioned at the master of hopper (2)
Exhaust part (21).
A kind of seal of rotary kiln structure the most according to claim 1, it is characterised in that: the outside of described boiler tube (1) is provided with
Thermal insulation layer (11)；Described labyrinth seal structure (3) is arranged between the inwall of hopper (2) and the outer wall of thermal insulation layer (11)；Described
Stationary ring (31) is fixedly installed on the inwall of hopper (2), and nonmetal rotating ring (32) is fixedly installed on the outer wall of thermal insulation layer (11).
A kind of seal of rotary kiln structure the most according to claim 2, it is characterised in that: described sealing is along boiler tube (1)
Axis direction is provided with multiple labyrinth seal structure (3)；It it is secondary exhaust part (22) between adjacent two labyrinth seal structures (3)；Institute
State each secondary exhaust part (22) to be all connected with main exhaust tube (4) by a secondary exhaust tube (6) and communicate；The side of described hopper (2)
Bottom be positioned on each secondary exhaust part (22) and be equipped with secondary discharging opening (7).
4. according to a kind of seal of rotary kiln structure described in claim 1 or 2 or 3, it is characterised in that: described nonmetal rotating ring
(32) politef is used.
5. according to a kind of seal of rotary kiln structure described in claim 1 or 2 or 3, it is characterised in that: described nonmetal rotating ring
(32) it is graphite annulus.
6. a seal of rotary kiln structure, has boiler tube (1) and hopper (2)；It is characterized in that: described hopper (2) is set in stove
One end of pipe (1)；Described hopper (2) includes main exhaust part (21) and sealing；It is close that described sealing is provided with at least one labyrinth
Seal structure (3)；Described labyrinth seal structure (3) includes at least one of which labyrinth seal unit；Described labyrinth seal unit includes one
Individual stationary ring (31) and two nonmetal rotating rings (32)；Described stationary ring (31) is fixedly installed on the inwall of hopper (2), nonmetal dynamic
Ring (32) is fixedly installed on the outer wall of boiler tube (1) and stationary ring (31) is positioned between two nonmetal rotating rings (32)；Described stationary ring
And nonmetal rotating ring (32) is all coaxial with boiler tube (1) (31)；Described hopper (2) is provided with the master connected with main exhaust part (21)
Exhaust tube (4)；The bottom of the side of described hopper (2) is provided with main discharge gate (5)；Described main discharge gate (5) is positioned at hopper (2)
Main exhaust part (21).
A kind of seal of rotary kiln structure the most according to claim 6, it is characterised in that: the outside of described boiler tube (1) is provided with
Thermal insulation layer (11)；Described labyrinth seal structure (3) is arranged between the inwall of hopper (2) and the outer wall of thermal insulation layer (11)；Described
Stationary ring (31) is fixedly installed on the inwall of hopper (2), and nonmetal rotating ring (32) is fixedly installed on the outer wall of thermal insulation layer (11).
A kind of seal of rotary kiln structure the most according to claim 7, it is characterised in that: described sealing is along boiler tube (1)
Axis direction is provided with multiple labyrinth seal structure (3)；It it is secondary exhaust part (22) between adjacent two labyrinth seal structures (3)；Institute
State each secondary exhaust part (22) to be all connected with main exhaust tube (4) by a secondary exhaust tube (6) and communicate；The side of described hopper (2)
Bottom be positioned on each secondary exhaust part (22) and be equipped with secondary discharging opening (7).
9. according to a kind of seal of rotary kiln structure described in claim 6 or 7 or 8, it is characterised in that: described nonmetal rotating ring
(32) politef is used.
10. according to a kind of seal of rotary kiln structure described in claim 6 or 7 or 8, it is characterised in that: described nonmetal rotating ring
(32) it is graphite annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710224.6U CN205878894U (en) | 2016-07-06 | 2016-07-06 | Rotary kiln sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710224.6U CN205878894U (en) | 2016-07-06 | 2016-07-06 | Rotary kiln sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878894U true CN205878894U (en) | 2017-01-11 |
Family
ID=57696062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620710224.6U Active CN205878894U (en) | 2016-07-06 | 2016-07-06 | Rotary kiln sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205878894U (en) |
-
2016
- 2016-07-06 CN CN201620710224.6U patent/CN205878894U/en active Active
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