CN207688631U - A kind of rotary furnace sealing device - Google Patents
A kind of rotary furnace sealing device Download PDFInfo
- Publication number
- CN207688631U CN207688631U CN201721691302.3U CN201721691302U CN207688631U CN 207688631 U CN207688631 U CN 207688631U CN 201721691302 U CN201721691302 U CN 201721691302U CN 207688631 U CN207688631 U CN 207688631U
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- boiler tube
- ring
- sealing
- rotary furnace
- venthole
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Abstract
The utility model discloses a kind of rotary furnace sealing devices,Including holder,Boiler tube lining ring,Cooling air inlet pipe and at least one set of seal assembly,Seal case connection on the boiler tube of holder and rotary furnace,Boiler tube lining ring is placed on furnace tube outer wall admittedly,And cooling cavity is formed between furnace tube outer wall,And boiler tube lining ring one end seals,The other end is equipped with venthole,Cooling air inlet pipe is set at venthole,Seal assembly includes bracing ring,Protective gas air inlet pipe and two sealing rings,Two sealing ring intervals are placed on the outer wall of boiler tube lining ring,Bracing ring is located between two sealing rings,Holder,Boiler tube,Sealing cavity is formed between boiler tube lining ring and the sealing ring of close seal case side,Two sealing rings,Protective gas cavity is formed between bracing ring and boiler tube,Protective gas air inlet pipe is connected to across bracing ring with protective gas cavity,Two sealing rings are fixed by the bracket.The utility model realizes the advantages of hermetic seal requires in stove.
Description
Technical field
The utility model is related to the technical field of sealing technology of rotary furnace more particularly to a kind of rotary furnace sealing devices.
Background technology
Rotary furnace is mainly used for the industries such as cement, lime, chemical industry, has many advantages, such as that yield is big, takes up little area, is efficient.It returns
Operating pressure in converter can be that positive pressure (atmosphere furnace) is alternatively negative pressure (air furnace), can not between boiler tube and burner cover, hood
Avoid there are gap, in order to obstruct outside powder (or gas) the leakage blind roaster that extraneous air is inhaled into stove or in stove,
Rotary furnace must have the good sealing device of sealing effect.Rotary furnace sealing device is connected to revolving body and burner/hood is (close
Joint sealing body) between, the quality of sealing performance directly affects the heat preservation of rotary furnace, energy consumption, furnace atmosphere, powder leakage.Currently,
Rotary furnace sealing device can be divided into contactless and contact, wherein contactless mainly gas seal type and labyrinth type, are chiefly used in
The not high occasion of seal request；And contact can be divided into radial seal and axial seal, broad form has graphite block sealing, fish
Flake type sealing, the sealing of spring rod-type, friction disk type sealing, air-cylinder type sealing etc..For the extra high rotary furnace of leakproofness, have
The combination of several sealings of Shi Caiyong.
In the prior art, using more for fish scale chip sealing structure, the main steel disc of this sealing structure, bracing wire, again
Hammer etc. assembles.Polylith steel disc is overlapped to form a ring successively, is wrapped in furnace tube outer wall；Bracing wire is had mercy on outside steel disc one week, is led to
Heavy-hammer tension is crossed, steel disc stirrup is formed in furnace tube outer wall and is sealed.Fish scale chip sealing structure has preferable trackability, can be with
The displacement of boiler tube axially and radially is compensated well for, has preferable leakproofness.Existing fish scale chip sealing structure it is opposite and
Speech has preferable sealing effect, but still has following deficiency：
1) complicated, matching requirements are high, cost is higher.
2) it is commonly used in bigbore rotary furnace to seal, when rotary furnace bore is smaller, which then less adapts to, zero
Part is difficult to process.
3) it is not suitable with high gas tightness seal request.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of simple in structure, assembly
Rotary furnace sealing device that is easy, cheap, realizing hermetic seal requirement in stove.
In order to solve the above technical problems, the utility model uses following technical scheme：
Boiler tube one end of a kind of rotary furnace sealing device, the rotary furnace is arranged with seal case, the rotary furnace sealing
Device includes that holder, boiler tube lining ring, cooling air inlet pipe and at least one set of seal assembly, the holder are connect with seal case, institute
It states boiler tube lining ring to be placed on admittedly on the furnace tube outer wall, and forms cooling cavity between furnace tube outer wall, and boiler tube lining ring one end is close
Envelope, the other end are equipped with venthole, and the cooling air inlet pipe is set at the venthole, and the seal assembly includes bracing ring, protects
Shield gas inlet pipe and two sealing rings, described two sealing ring intervals are placed on the outer wall of boiler tube lining ring, the bracing ring folder
Between two sealing rings, the holder, boiler tube, boiler tube lining ring and the shape between the sealing ring of seal case side
At sealing cavity, protective gas cavity, the protective gas air inlet pipe are formed between two sealing rings, bracing ring and boiler tubes
It is connected to protective gas cavity across the bracing ring, two sealing rings are fixed by the bracket, and the seal assembly is set as two
Group or more when, each seal assembly is provided at circumferentially spaced along boiler tube lining ring outer wall.
As a further improvement of the above technical scheme：
The holder is equipped with pressure ring, and the pressure ring is closely placed on outside two sealing rings.
There is the boiler tube lining ring one end of venthole to be equipped with dismountable annular cover plate, and the venthole is set to the ring
On shape cover board, and the diameter of the venthole is more than the diameter of cooling air inlet pipe.
Venthole setting is multiple, is arranged circumferentially along boiler tube, and the cooling air inlet pipe is set as multiple, quantity with
Number of air hole is identical.
The boiler tube lining ring is a cylinder.
The outer wall of the boiler tube lining ring is shiny surface.
The material of the sealing ring is silicane rubber plate.
The venthole includes air admission hole and venthole, and the cooling air inlet pipe is connect with air admission hole.
Compared with prior art, the utility model has the advantage of：
The rotary furnace sealing device of the utility model, is made of inside and outside two seals, structure between inside and outside two seals
Hermetic seal requirement in stove may be implemented by importing protective gas in the cavity at protective gas cavity；Using two
The soft sealing ring of a monoblock replaces fish scale steel-sheet type sealing structure in the prior art, realizes that banding is close using its own elasticity
Envelope, the apparatus structure is simple, assembly is easy, is cheap, realizes hermetic seal requirement in stove.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the partial enlarged view of the utility model embodiment 1.
Each label indicates in figure：
1, holder；11, pressure ring；2, boiler tube lining ring；3, cooling air inlet pipe；4, seal assembly；41, bracing ring；42, gas is protected
Body air inlet pipe；43, sealing ring；5, boiler tube；6, venthole；71, sealing cavity；72, protective gas cavity；73, cooling cavity；8、
Annular cover plate；9, seal case.
Specific implementation mode
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2,5 one end of boiler tube of the rotary furnace sealing device of the present embodiment, rotary furnace is arranged with seal box
Body 9, rotary furnace sealing device include holder 1, boiler tube lining ring 2, cooling air inlet pipe 3 and at least one set of seal assembly 4, holder 1 with
Seal case 9 connects, and boiler tube lining ring 2 is placed on admittedly on 5 outer wall of boiler tube of rotary furnace, and cooling sky is formed between 5 outer wall of boiler tube
Chamber 73, and 2 one end of boiler tube lining ring seals, the other end is equipped with venthole 6, and cooling air inlet pipe 3 is set at venthole 6, seal assembly 4
Including bracing ring 41, protective gas air inlet pipe 42 and two sealing rings 43, two sealing rings 43, which are spaced, is placed on the outer of boiler tube lining ring 2
On wall, bracing ring 41 is located between two sealing rings 43, holder 1, boiler tube, boiler tube lining ring 2 and close to 9 side of seal case
Sealing cavity 71 is formed between sealing ring 43 4, and protection gas is formed between two sealing rings 43, bracing ring 41 and boiler tube 5 four
Body cavity 72, protective gas air inlet pipe 42 are connected to across bracing ring 41 with protective gas cavity 72, and two sealing rings 43 pass through branch
Frame 1 is fixed, and when seal assembly 4 is set as more than two, each seal assembly 4 is provided at circumferentially spaced along 2 outer wall of boiler tube lining ring.
In the present embodiment, in concrete application example, the both ends of boiler tube 1 are arranged with seal case 2, in the present embodiment,
In Fig. 1, seal case 2 is located at the input end of boiler tube 1, and sealing cavity 71 is connected to 9 inside of seal case, and 5 import of boiler tube is located at
In seal case 9, i.e., 2 left side one end of boiler tube lining ring is the one end for needing to seal, and two intervals of sealing ring 43 are placed on 5 outer wall of boiler tube
On, it is fixed and is supported by holder 1, supported by bracing ring 41 between two sealing rings 43, when work, boiler tube lining ring 2 is with boiler tube 5
Rotation, seal assembly 4 is fixed, and sealing ring 43 utilizes its elasticity so that its inner ring tightly fits in the boiler tube lining ring 2 of rotation
Outer surface, do not interspace (practical is extremely subtle gap) substantially, is full of protective gas in protective gas cavity 72, protects gas
Body can be circulated to from the fine clearance of two sealing rings 43 and boiler tube lining ring 2 outside protective gas cavity 72；Positioned at left end
The side of sealing ring 43 be sealing cavity 71 in protective gas positive pressure, the other side be protective gas cavity 72 in protective gas just
Pressure, pressure at both sides mutually contradict, and maintain the balance of 5 positive pressure of boiler tube, protective gas cavity 72 to be full of protective gas, realize to sealing
The sealing of cavity 71, and then the boiler tube of rotation 5 is sealed.2 left side one end of boiler tube lining ring is the one end for needing to seal, boiler tube
2 left end of lining ring is sealing, and there is right end venthole 6, cooling air inlet pipe 3 to be passed through towards venthole 6 and into cooling cavity 73 cold
But gas, one, for cooling down to boiler tube lining ring 2 reduce heat transfer to seal assembly 4, secondly, for cooling down boiler tube
5 outer walls.
The rotary furnace sealing device of the utility model, is made of inside and outside two seals 43, inside and outside two seals 43 it
Between constitute protective gas cavity 72, by the way that toward importing protective gas in the protective gas cavity 72, sealing cavity 71 may be implemented
The requirement of (in stove) hermetic seal；Fish scale steel disc is replaced using the soft sealing ring 43 of two monoblocks, utilizes its own elasticity
Realize banding sealing, the apparatus structure is simple, assembly is easy, is cheap, realizes hermetic seal requirement in stove.
In the present embodiment, boiler tube lining ring 2 and boiler tube 5 are concentric, are rotated together with boiler tube 5.Boiler tube lining ring 2 is cylinder knot
Structure, outer wall are shiny surface, reduce the rotating friction force between sealing ring 43.
In the present embodiment, cooling gas can make cold wind or natural air in cooling air inlet pipe 3.
In the present embodiment, holder 1 is equipped with pressure ring 11, and pressure ring 11 is closely placed on outside two sealing rings 43.Sealing ring 43
Material be silicane rubber plate, have certain wearability and elasticity.
In the present embodiment, there is boiler tube lining ring 2 one end of venthole 6 to be equipped with dismountable annular cover plate 8, and ring is separately provided
Shape cover board 8 is easy to process and installs.Venthole 6 is set on annular cover plate 8, and the diameter of venthole 6 is more than cooling air inlet pipe 3
Diameter, cooling gas come out after venthole 6 enters cooling cavity 73 along the venthole 6.Venthole 6 be arranged it is multiple, along stove
Pipe 5 is arranged circumferentially, and cooling air inlet pipe 3 is set as multiple, and quantity is identical as 6 quantity of venthole.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that only：
In the present embodiment, venthole 6 includes air admission hole and venthole, and cooling air inlet pipe 3 is connect with air admission hole.Air admission hole edge
One circle of the setting of annular cover plate 8, venthole is located at the outside of air admission hole also along one circle of the setting of annular cover plate 8.
Although the utility model has been disclosed with preferred embodiment as above, it is not limited to the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, every content without departing from technical solutions of the utility model, according to the utility model technical spirit to above real
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model are protected.
Claims (8)
1. boiler tube (5) one end of a kind of rotary furnace sealing device, the rotary furnace is arranged with seal case (9), it is characterised in that：
The rotary furnace sealing device includes holder (1), boiler tube lining ring (2), cools down air inlet pipe (3) and at least one set of seal assembly (4),
The holder (1) connect with seal case (9), and the boiler tube lining ring (2) is placed on admittedly on the boiler tube (5) outer wall, and and boiler tube
(5) cooling cavity (73) is formed between outer wall, and boiler tube lining ring (2) one end seals, the other end is equipped with venthole (6), described cold
But air inlet pipe (3) is set at the venthole (6), and the seal assembly (4) includes bracing ring (41), protective gas air inlet pipe
(42) it is placed on the outer wall of boiler tube lining ring (2) with two sealing rings (43), described two sealing ring (43) intervals, the bracing ring
(41) it is located between two sealing rings (43), the holder (1), boiler tube, boiler tube lining ring (2) and close seal case (9) one
Sealing cavity (71), two sealing rings (43), bracing ring (41) and boiler tube (5) four are formed between the sealing ring (43) four of side
Between form protective gas cavity (72), the protective gas air inlet pipe (42) passes through the bracing ring (41) and protective gas empty
Chamber (72) is connected to, and two sealing rings (43) are fixed by holder (1), each close when the seal assembly (4) is set as more than two
Sealing assembly (4) is provided at circumferentially spaced along boiler tube lining ring (2) outer wall.
2. rotary furnace sealing device according to claim 1, it is characterised in that：The holder (1) is equipped with pressure ring (11),
It is external that the pressure ring (11) is closely placed on two sealing rings (43).
3. rotary furnace sealing device according to claim 1, it is characterised in that：The boiler tube lining ring (2) has venthole
(6) one end is equipped with dismountable annular cover plate (8), and the venthole (6) is set on the annular cover plate (8), and described logical
The diameter of stomata (6) is more than the diameter of cooling air inlet pipe (3).
4. the rotary furnace sealing device according to claims 1 to 3 any one, it is characterised in that：The venthole (6) sets
It sets multiple, is arranged circumferentially along boiler tube (5), the cooling air inlet pipe (3) is set as multiple, quantity and venthole (6) quantity
It is identical.
5. the rotary furnace sealing device according to claims 1 to 3 any one, it is characterised in that：The boiler tube lining ring (2)
For a cylinder.
6. the rotary furnace sealing device according to claims 1 to 3 any one, it is characterised in that：The boiler tube lining ring (2)
Outer wall be shiny surface.
7. the rotary furnace sealing device according to claims 1 to 3 any one, it is characterised in that：The sealing ring (43)
Material be silicane rubber plate.
8. rotary furnace sealing device according to claim 1 or 2, it is characterised in that：The venthole (6) includes air admission hole
And venthole, the cooling air inlet pipe (3) connect with air admission hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691302.3U CN207688631U (en) | 2017-12-07 | 2017-12-07 | A kind of rotary furnace sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691302.3U CN207688631U (en) | 2017-12-07 | 2017-12-07 | A kind of rotary furnace sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207688631U true CN207688631U (en) | 2018-08-03 |
Family
ID=62996788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721691302.3U Active CN207688631U (en) | 2017-12-07 | 2017-12-07 | A kind of rotary furnace sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207688631U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671928A (en) * | 2019-09-29 | 2020-01-10 | 中国人民解放军陆军炮兵防空兵学院 | Sealing structure and sealing method for furnace tube, feeding end and discharging end of high-temperature rotary kiln |
| CN110671927A (en) * | 2019-09-29 | 2020-01-10 | 中国人民解放军陆军炮兵防空兵学院 | Sealing structure and sealing method for furnace tube, feeding end and discharging end of high-temperature rotary kiln |
| CN111854424A (en) * | 2019-04-26 | 2020-10-30 | 宁德时代新能源科技股份有限公司 | High-temperature sintering equipment and method for cathode material |
| CN113698952A (en) * | 2021-09-02 | 2021-11-26 | 浙江工业大学 | Sectional type biomass pyrolysis integrated device and method |
-
2017
- 2017-12-07 CN CN201721691302.3U patent/CN207688631U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854424A (en) * | 2019-04-26 | 2020-10-30 | 宁德时代新能源科技股份有限公司 | High-temperature sintering equipment and method for cathode material |
| CN110671928A (en) * | 2019-09-29 | 2020-01-10 | 中国人民解放军陆军炮兵防空兵学院 | Sealing structure and sealing method for furnace tube, feeding end and discharging end of high-temperature rotary kiln |
| CN110671927A (en) * | 2019-09-29 | 2020-01-10 | 中国人民解放军陆军炮兵防空兵学院 | Sealing structure and sealing method for furnace tube, feeding end and discharging end of high-temperature rotary kiln |
| CN113698952A (en) * | 2021-09-02 | 2021-11-26 | 浙江工业大学 | Sectional type biomass pyrolysis integrated device and method |
| CN113698952B (en) * | 2021-09-02 | 2022-09-13 | 浙江工业大学 | Sectional type biomass pyrolysis integrated device and method |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20201215 Address after: 410000, 1 / F, microelectronic equipment center building, 1025 xinkaipu Road, Tianxin District, Changsha City, Hunan Province Patentee after: Hunan ShuoKe thermal Intelligent Equipment Co.,Ltd. Address before: 410111, No. 1025, paving road, Tianxin District, Hunan, Changsha Patentee before: FORTY-EIGHTH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. |