CN206019288U - A kind of novel kiln head sealing device for rotary kiln - Google Patents
A kind of novel kiln head sealing device for rotary kiln Download PDFInfo
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- CN206019288U CN206019288U CN201620895739.8U CN201620895739U CN206019288U CN 206019288 U CN206019288 U CN 206019288U CN 201620895739 U CN201620895739 U CN 201620895739U CN 206019288 U CN206019288 U CN 206019288U
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Abstract
This utility model is related to a kind of novel kiln head sealing device for rotary kiln, can solve the problems such as rotary kiln end sealing sealing effectiveness is not good such as to be emitted ash and leak out.The sealing device includes connecting cylinder, spring assembly, clamping frame, graphite block, sliding friction film, labyrinth seal ring, friction of rest piece etc..Compared with prior art, the advantage of this new type sealing device is simple structure, compact, graphite block uniform force, easy installation and removal, low cost of manufacture, adaptation cylinder beat ability are strong, it is suitable for the kiln hood sealing of design all size, sealing effectiveness is good, and practicality is higher.
Description
Technical field
This utility model is related to seal of rotary kiln equipment technical field, with being related to a kind of novel kiln head for rotary kiln
Sealing device.
Background technology
With the raising developed rapidly with living standards of the people of social economy, country is proposed to environmental protection and energy-conservation this block
Higher standard and the request.Rotary kiln is the main process equipment of manufacture of cement.Mainly there are kiln cylinder body, actuating device, supporting arrangement, gear
Wheel apparatus, kiln end sealing device, kiln tail sealing device, kiln head cover etc. are constituted.Due to rotary kiln can produce in the running beat and
Play, it requires that kiln end sealing device can compensate the reciprocal play in beat when kiln operates and operating vertically automatically, and
And sealing device good seal performance is required, otherwise producing and leak out, emit the phenomenons such as ash, so as to increased the exhausted air quantity of system, increasing
Heat consumption and the coal consumption of system have been added, and have caused the minimizing of secondary wind inlet, unnecessary loss is brought to system, increased life
Cost is produced, so kiln end sealing device is also a more important part in rotary kiln device.
The used steel disc form kiln hood sealing of the kiln end sealing device that uses on rotary kiln, the sealing of form of graphite kiln hood and pure bullet
Spring form kiln hood seals three kinds.Wherein, steel-sheet type and the sealing of graphite formula are allowed to fit with steel wire heavy-hammer tension steel disc or graphite
Kiln cylinder body being sealed, the pressure between this kind of sealing reply seal steel plate or graphite be adjusted with ensure steel disc or graphite with
The close contact of kiln cylinder body, the weight at steel wire rope two ends must be balanced, beat when being operated with the flexibility compensation cylinder of steel wire rope
And the abrasion of graphite block.If seal steel plate or graphite block when mounted not and air-cooled set all the time patch and, or when steel disc is installed
Do not filled by drawing direction completely, or sealing plate deformation is caused seal failure etc. all affect sealing effectiveness during use.
Steel disc form locked coil wire rope leans on heavy-hammer tension, and which can be fitted completely in vertical direction, and if other directions cylinder beats and
High temperature causes radial deformation and affects circularity, and compensation of cannot fitting completely well is down to reduction sealing effectiveness.
The sealing of pure form of springs tenses cylinder upper sealing panel with spring in circumferencial direction to be sealed, and spring sealed needs to adjust
Whole nut makes sealing plate suitable with kiln cylinder body contact, otherwise affects sealing effectiveness.This simple spring seal unit is due to being edge
Cylinder circumferencial direction is installed, and as kiln operating produces radial beat deformation, spring can be caused to produce not along own axes direction
Deformation is so that elastic failure, thus can not adjust thrust well to compress sealing plate with compensating cylinder radial deformation, from
And reduce sealing effectiveness.
Utility model content
Goal of the invention：This utility model purpose is the novel kiln head sealing structure for providing a kind of rotary kiln, effectively solving
Rotary kiln end sealing sealing effectiveness is not good the problems such as such as emit ash and leak out.
Technical scheme：For achieving the above object, the technical solution adopted in the utility model is：
A kind of novel kiln head sealing device for rotary kiln, including connecting cylinder, some spring assemblies, clamping frame, graphite
Block, sliding friction film, labyrinth seal ring, the first friction of rest piece, the second friction of rest piece, ash bucket, sealing ring, pressing plate and carve
Block；One lap welding of connecting cylinder is connected to the grate-cooler lateral wall perpendicular to tubular axis, and grey bucket cover right-hand member bolt is connected with connecting cylinder,
Labyrinth seal ring right-hand member bolt is connected with grey bucket cover, and left end bolt is connected with the first friction of rest piece, positioned at labyrinth seal
The second friction of rest piece and sliding friction film bolt inside ring is connected with connecting cylinder, grey bucket cover left end bolt and sealing ring
Connection；Spring assembly is evenly distributed on cylinder one week along cylinder radially installed, and each spring assembly includes 1 pair of spring and 2
Hook, spring upper end are hung on hook, and lower end is hooked in wedge, and hook is connected with nut with clamping frame, and clamping frame is compressed and cylinder
The graphite block of the air-cooled set patch sum of body, is connected with sealing ring and pressing plate by spring assembly good seal.
Preferably, being evenly arranged within one week 30 spring assemblies along cylinder.
Preferably, be provided with the lower cover of ash bucket disclosing material hole.
Beneficial effect：This utility model is sealed in the form of spring is combined with graphite-phase, and spring is along cylinder radial direction
Install, the compression that be connected is linked up with to compress with both ends of the spring in the tensile force that radial direction acts on kiln cylinder body by adjusting spring
Frame and graphite block are so that they are brought into close contact the clamping frame and graphite block of the air-cooled set on kiln cylinder body, i.e. regulation upper and lower end
Pressure is being sealed to reach sealing effectiveness.This utility model is taken and has installed labyrinth seal ring additional and sealed, due to radially
The adjustment of spring its elastic force of installation makes sliding friction film in cylinder down play, can always close to the low of labyrinth seal ring
End face rotates, and when cylinder up play, then can rotate close to high end face always, has such one radial labyrinth formula sealing, no
But sealing effectiveness can be strengthened, and can be prevented as malleation occurs in kiln hood and be ejected grog fine grained and cause graphite block card
The phenomenon that can not be firmly adjacent to.For preventing from accumulating grog fine grained, increased at discharge ash bucket lower cover and disclose material hole.Therefore with existing
There is technology to compare, this utility model simple structure, compact, graphite block uniform force adapt to cylinder beat ability by force, installing/dismounting
Convenient, low cost of manufacture is suitable for the kiln hood sealing of design all size, and good sealing effect, practicality are higher.
Description of the drawings
Fig. 1 is this utility model main structure diagram.
Fig. 2 be Fig. 1 in A to structural representation.
Fig. 3 is partial enlarged drawing in Fig. 2.
Fig. 4 is spring works figure.
In figure：1- sealing rings, 2- screws, 3- nuts, 4- packing rings are covered on 5- ash buckets, 6- connecting cylinders, 10- pressing plates, 11- spiral shells
Bolt, 12- graphite blocks, 13- wedges, 17- labyrinth seal rings, 20- the first friction of rest pieces, 21- sliding friction films, 22- second are quiet
Only friction plate, 28- are linked up with, 29- nuts, 30- clamping frames, 31- springs, 32- ash bucket lower covers, and 37- discloses material hole.
Specific embodiment
This utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As Figure 1-3, a kind of novel kiln head sealing device for rotary kiln disclosed in this utility model embodiment, main
Want connecting cylinder 6, some spring assemblies, clamping frame 30, graphite block 12, sliding friction film 21, labyrinth seal ring 17, first is static rubs
Pad 20, the second friction of rest piece 22, ash bucket 5, sealing ring 1, pressing plate 10, wedge 13, bolt, nut, packing ring etc. are constituted, ring ring
Interlock, close structure.6 one lap welding of connecting cylinder is connected to the grate-cooler lateral wall perpendicular to tubular axis, by ash bucket upper and lower covers 5,
32 right-hand member bolts are connected with connecting cylinder 6, and 17 right-hand member bolt of labyrinth seal ring is connected with grey bucket cover, left end bolt and the
One friction of rest piece 20 connects, by the second friction of rest piece 22 and sliding friction film 21 inside labyrinth seal ring 17 with bolt with
Connecting cylinder 6 connects, and grey bucket cover left end bolt is connected with sealing ring 1.Ash bucket lower cover 32 is provided with discloses material hole 37.
Spring assembly is evenly distributed on cylinder one week along cylinder radially installed, and each spring assembly includes 1 pair 2 secondary bullet
Spring and 2 hook, in this example be along cylinder circumference one circle arrangement 30 pairs of 60 auxiliary springs, spring along cylinder radially installed, per two pairs
Angle between spring and circle centrage is 12 degree, and 31 upper end of spring of radially installed is hung on hook 28, and lower end is hooked in wedge
On 13, hook 28 is connected with nut 29 with clamping frame 30, clamping frame 30 compress set air-cooled with cylinder paste and graphite block 12, use spiral shell
Bolt 11 connects sealing ring 1 and pressing plate 10 by spring assembly good seal.
Before graphite is installed, it is necessary to which whether the weld seam for going through the near zone contacted with graphite block is tied, polished.Install
During graphite block 12 should handle with care, in order to avoid break impact sealing effectiveness.
Wedge 13 is adjusted repeatedly will during installation, so that each 12 activity of graphite block is freely.Clamping frame 30 is to graphite block 12
Pressure should be according to debugging and service condition adjustment, and to ensure its fitting all the time with air-cooled set, and pressure is wanted moderate and is advisable.
5000t/d specification kilns are illustrated in figure 4, the design knot that spring part is calculated by technological parameter and service load
Structure, makes spring works figure.Suggestion size H:Installation dimension is 312mm, when after service wear, size is 262mm, should pass through to adjust
Whole hook makes size restoration to 312mm.In figure, P0 (initial tension)=56.6N, P1 (minimum service load)=165N, Pn are (maximum
Service load)=270N, Pj (working ultimate load)=410.07N, n (number of active coils) take 45 circles, L (length of run)=
3652mm, spring free length H during initial tension0=211mm, its length H under minimum service load1≈ 262mm, maximum work
Make its length Hn ≈ 312mm under load, its length Hj ≈ 369mm under working ultimate load.
Spring 31 is installed along cylinder radial direction, can be compensated in time when kiln is turned round by the elasticity of itself (stretching and compression) and be produced
Raw radial beat and deformation.The spring 31 of radially installed has reversely compressed the clamping frame 30 by 28 connection of hook simultaneously, makes
Compression graphite can be brought into close contact with the air-cooled set of cylinder, the flexible sleeve for thus forming a closing in kiln cylinder body one week comes
Automatically reciprocal play when compensation cylinder operates vertically, and produced with cylinder operating by spring adjustment compensation graphite block
Abrasion.
Practical application：5000t/d cement producing lines are transformed using the novel kiln head sealing device of the present embodiment, changed
Make front coal consumption high, kiln hood leaks out, it is more serious to emit ash, had both affected yield, and had polluted environment again.Improved kiln hood seals type than before
The kiln end sealing device sealing effectiveness of formula is good, can preferably meet production needs, from terms of scene at kiln hood sealing one layer do not contaminate, close
Envelope excellent.
Above-described embodiment is only intended to clearly illustrate this utility model example, and is not to of the present utility model
The restriction of embodiment.For those of ordinary skill in the field, which can also be made on the basis of the above description
The change or variation of its multi-form.There is no need to be exhaustive to all of embodiment.And these belong to this reality
With new spirit extended obvious change or variation still in protection domain of the present utility model among.
Claims (3)
1. a kind of novel kiln head sealing device for rotary kiln, it is characterised in that：Including connecting cylinder, some spring assemblies, pressure
Tight frame, graphite block, sliding friction film, labyrinth seal ring, the first friction of rest piece, the second friction of rest piece, ash bucket, sealing ring,
Pressing plate and wedge；One lap welding of the connecting cylinder is connected to the grate-cooler lateral wall perpendicular to tubular axis, grey bucket cover right-hand member bolt
It is connected with connecting cylinder, labyrinth seal ring right-hand member bolt is connected with grey bucket cover, and left end bolt is connected with the first friction of rest piece,
The the second friction of rest piece and sliding friction film bolt being located inside labyrinth seal ring is connected with connecting cylinder, and grey bucket cover left end is used
Bolt is connected with sealing ring；The spring assembly is evenly distributed on cylinder one week, each spring assembly along cylinder radially installed
Including 1 pair of spring and 2 hooks, spring upper end is hung on hook, and lower end is hooked in wedge, and hook is connected with nut with clamping frame
Connect, clamping frame compress with cylinder air-cooled set patch and graphite block, be connected with sealing ring and pressing plate by spring assembly good seal.
2. the novel kiln head sealing device for rotary kiln according to claim 1, it is characterised in that：Along cylinder one week
30 spring assemblies of even arrangement.
3. the novel kiln head sealing device for rotary kiln according to claim 1 and 2, it is characterised in that：The ash bucket
Lower cover at be provided with disclose material hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895739.8U CN206019288U (en) | 2016-08-17 | 2016-08-17 | A kind of novel kiln head sealing device for rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895739.8U CN206019288U (en) | 2016-08-17 | 2016-08-17 | A kind of novel kiln head sealing device for rotary kiln |
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| Publication Number | Publication Date |
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| CN206019288U true CN206019288U (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620895739.8U Active CN206019288U (en) | 2016-08-17 | 2016-08-17 | A kind of novel kiln head sealing device for rotary kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490291A (en) * | 2017-09-15 | 2017-12-19 | 赵春博 | A kind of rotary kiln biserial graphite block sealing device |
| CN107642984A (en) * | 2017-10-10 | 2018-01-30 | 南京中材水泥备件有限公司 | A kind of rotary kiln end novel graphite sealing device |
| CN108151030A (en) * | 2018-02-08 | 2018-06-12 | 江苏海建股份有限公司 | A kind of incinerator special-purpose combined type sealing device |
| CN109186270A (en) * | 2018-10-08 | 2019-01-11 | 云南华鼎再生资源开发有限公司 | A kind of moveable rotary kiln head-shield |
| CN109990096A (en) * | 2019-05-13 | 2019-07-09 | 江苏海建股份有限公司 | A kind of gravity tensioning graphite seal device |
-
2016
- 2016-08-17 CN CN201620895739.8U patent/CN206019288U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490291A (en) * | 2017-09-15 | 2017-12-19 | 赵春博 | A kind of rotary kiln biserial graphite block sealing device |
| CN107642984A (en) * | 2017-10-10 | 2018-01-30 | 南京中材水泥备件有限公司 | A kind of rotary kiln end novel graphite sealing device |
| CN108151030A (en) * | 2018-02-08 | 2018-06-12 | 江苏海建股份有限公司 | A kind of incinerator special-purpose combined type sealing device |
| WO2019153560A1 (en) * | 2018-02-08 | 2019-08-15 | 江苏海建股份有限公司 | Combined type sealing device special for incinerator |
| CN109186270A (en) * | 2018-10-08 | 2019-01-11 | 云南华鼎再生资源开发有限公司 | A kind of moveable rotary kiln head-shield |
| CN109186270B (en) * | 2018-10-08 | 2024-04-05 | 云南华鼎再生资源开发有限公司 | Mobilizable rotary kiln hood |
| CN109990096A (en) * | 2019-05-13 | 2019-07-09 | 江苏海建股份有限公司 | A kind of gravity tensioning graphite seal device |
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| GR01 | Patent grant |