CN204535366U - A kind of combination sealing arrangement for rotary kiln - Google Patents
A kind of combination sealing arrangement for rotary kiln Download PDFInfo
- Publication number
- CN204535366U CN204535366U CN201520173569.8U CN201520173569U CN204535366U CN 204535366 U CN204535366 U CN 204535366U CN 201520173569 U CN201520173569 U CN 201520173569U CN 204535366 U CN204535366 U CN 204535366U
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- CN
- China
- Prior art keywords
- rotary kiln
- sealing ring
- flap
- seal closure
- end sealing
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses a kind of combination sealing arrangement for rotary kiln, comprising: seal closure, it is the tubular structure of both ends open; Described seal closure is sheathed on cylinder of rotary kiln, and one end is fixedly connected with kiln hood, and the first end of the other end and multiple flap is fixedly linked, and the second end of described multiple flap all contacts with described cylinder of rotary kiln outer surface; Labyrinth gland, it is inner that it is arranged at described seal closure, comprise multiple stiff end sealing ring and multiple movable end sealing ring, described multiple stiff end sealing ring is fixed on described kiln hood, described multiple movable end sealing ring is fixed on described cylinder of rotary kiln, described multiple stiff end sealing ring and described multiple movable end sealing ring interval are arranged, and form labyrinth-like structure; Described seal closure is also provided with suction opeing, and described suction opeing is connected with air-introduced machine by induced duct.The utility model structure is simple, good sealing effect, conservation.
Description
Technical field
The utility model relates to seal of rotary kiln technical field, is specifically related to a kind of combination sealing arrangement for rotary kiln.
Background technology
Rotary kiln is capital equipment required in the industry such as chemical industry, cement.Material produces a large amount of airborne dusts in the process importing rotary kiln through chute, and airborne dust is difficult to directly be recovered to expansion chamber in the kiln tail of pressure-fired, is easy to Lou grey, thus must arranges sealing device at cylindrical shell and the kiln hood connecting portion of rotary kiln.But only adopt labyrinth seal or the sealing of fish phosphorus sheet or more combination, be difficult to obtain good sealing effectiveness in malleation rotary kiln.
Utility model content
The utility model has designed and developed that a kind of structure is simple, the combination sealing arrangement for rotary kiln of good sealing effect, conservation.
The technical scheme that the utility model provides is:
For a combination sealing arrangement for rotary kiln, comprising:
Seal closure, it is the tubular structure of both ends open; Described seal closure is sheathed on cylinder of rotary kiln, and one end is fixedly connected with kiln hood, and the first end of the other end and multiple flap is fixedly linked; Described multiple flap is the steel disc that cross section is circular arc, the radius of described circular arc is equal with the radius of described cylinder of rotary kiln, described multiple flap overlaps setting mutually around described seal closure, and the lap area of adjacent flap is at least 1/3 of a slice flap area, second end of described multiple flap all contacts with described cylinder of rotary kiln outer surface, and is all 20-40 ° of angle with described cylinder of rotary kiln outer surface;
Labyrinth gland, it is inner that it is arranged at described seal closure, comprise multiple stiff end sealing ring and multiple movable end sealing ring, described multiple stiff end sealing ring is fixed on described kiln hood, described multiple movable end sealing ring is fixed on described cylinder of rotary kiln, described multiple stiff end sealing ring and described multiple movable end sealing ring interval are arranged, and form labyrinth-like structure; The spacing of described stiff end sealing ring and described movable end sealing ring reduces from inside to outside successively;
Wherein, along described cylinder of rotary kiln axially, the length of described seal closure is 3-5 times of described labyrinth gland length, and described seal closure is also provided with suction opeing, described suction opeing is positioned at directly over the outlet of described labyrinth gland, and described suction opeing is connected with air-introduced machine by induced duct.
Preferably, the described combination sealing arrangement for rotary kiln, the spacing of described stiff end sealing ring and described movable end sealing ring is 40-50mm.
Preferably, the described combination sealing arrangement for rotary kiln, described seal closure and described kiln hood are formed in one.
Preferably, the described combination sealing arrangement for rotary kiln, described seal closure bottom is provided with ash discharging hole.
Preferably, the described combination sealing arrangement for rotary kiln, the second end of described flap is also surrounded with a steel wire rope, described steel wire rope is connected with a balancing weight, with the outer surface making the second end of described flap be close to described cylinder of rotary kiln.
Preferably, the described combination sealing arrangement for rotary kiln, the material of described seal closure and described flap is heat resisting steel.
The beneficial effects of the utility model: (1) labyrinth gland is made up of multiple sealing ring, comprise stiff end sealing ring and movable end sealing ring, become first sealing, the sealing of fish phosphorus sheet composition second, this two seals makes the airborne dust of rotary kiln greatly reduce.(2) seal closure covers on the outside of labyrinth seal, and under the effect of air-introduced machine, form negative pressure in seal closure, airborne dust can not leak outside seal closure, can only be delivered to dust-precipitator, then deliver to feed bin, return in rotary kiln by air exhauster exhausting.Thus eliminating the need the possibility that airborne dust leaks, avoid airborne dust to affect the healthy of workmen, and there is recovery raw material, reduce the effect of wastage of material.(3) described multiple flap is the steel disc that cross section is circular arc, and the radius of described circular arc is equal with the radius of described cylinder of rotary kiln, such flap can preferably with cylinder of rotary kiln close contact; Described multiple flap overlaps setting mutually around described seal closure, and the lap area of adjacent flap is at least 1/3 of a slice flap area, such one side makes flap be easier to fix, there will not be the situation that single flap comes off, reduce the gap between adjacent flap on the other hand well; Second end of described multiple flap all contacts with described cylinder of rotary kiln outer surface, and be all 20-40 ° of angle with described cylinder of rotary kiln outer surface, arrange the degree of wear in the process that flap rotates at cylinder of rotary kiln so even, Anti-air-leakage leaks the best results of ash.(4) spacing of described stiff end sealing ring and described movable end sealing ring reduces from inside to outside successively, the impact of being expanded with heat and contract with cold the closer to the sealing ring of cylinder of rotary kiln is larger, thus spacing is slightly large, and spacing reduces from inside to outside successively, can strengthen the sealing effectiveness of labyrinth seal; (5) along described cylinder of rotary kiln axially, the length of described seal closure is 3-5 times of described labyrinth gland length, labyrinth gland and flap is made to have enough distances like this, and make to form enough negative pressure space in seal closure, reduce from the dust emission of labyrinth gland close to flap.
Accompanying drawing explanation
Fig. 1 is the structural representation of the combination sealing arrangement for rotary kiln described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
As shown in Figure 1, the utility model provides a kind of combination sealing arrangement for rotary kiln, comprising:
Seal closure 3, it is the tubular structure of both ends open; Described seal closure 3 is sheathed on cylinder of rotary kiln 1, and one end is fixedly connected with kiln hood 2, and the first end of the other end and multiple flap 5 is fixedly linked; Described multiple flap 5 is the steel disc that cross section is circular arc, the radius of described circular arc is equal with the radius of described cylinder of rotary kiln 1, described multiple flap 5 overlaps setting mutually around described seal closure 3, and the lap area of adjacent flap 5 is at least 1/3 of a slice flap 5 area, second end of described multiple flap 5 all contacts with described cylinder of rotary kiln 1 outer surface, and is all 20-40 ° of angle with described cylinder of rotary kiln 1 outer surface;
Seal closure 3 is sheathed on cylinder of rotary kiln 1, and leaves certain gap with cylinder of rotary kiln 1 outer surface.One end of seal closure 3 is fixedly connected with kiln hood 2, and in the present embodiment, seal closure 3 is direct and kiln hood 2 is one-body molded.The other end of seal closure 3 is provided with multiple flaps 5 of overlap joint mutually, multiple flap 5 all with the barrel outer surface close contact of rotary kiln, thus the other end of seal closure 3 to be closed.Described multiple flap 5 is the steel disc that cross section is circular arc, the radius of described circular arc is equal with the radius of described cylinder of rotary kiln 1, such flap 5 can preferably with cylinder of rotary kiln 1 close contact, and not easily to slide, or depart from original position in cylinder of rotary kiln 1 process of rotating; The lap area of adjacent flap 5 is at least 1/3 of a slice flap 5 area, makes flap 5 be easier to fix so on the one hand, there will not be the situation that single flap 5 comes off, and reduces the gap between adjacent flap 5 on the other hand well; Multiple flap 5 is all 20-40 ° of angle with described cylinder of rotary kiln 1 outer surface, and arrange the degree of wear in the process that flap 5 rotates at cylinder of rotary kiln 1 so even, Anti-air-leakage leaks the best results of ash.In the present embodiment, second end of described flap 5 is also surrounded with a steel wire rope, described steel wire rope is connected with a balancing weight, with the outer surface making the second end of described flap 5 be close to described cylinder of rotary kiln 1, make flap 5 tightr with the laminating of rotary kiln like this, improve sealing effectiveness, and reduce the mutual slip between flap 5.
Labyrinth gland 4, it is inner that it is arranged at described seal closure 3, comprise multiple stiff end sealing ring and multiple movable end sealing ring, described multiple stiff end sealing ring is fixed on described kiln hood 2, described multiple movable end sealing ring is fixed on described cylinder of rotary kiln 1, described multiple stiff end sealing ring and described multiple movable end sealing ring interval are arranged, and form labyrinth-like structure; The spacing of described stiff end sealing ring and described movable end sealing ring reduces from inside to outside successively;
Labyrinth seal has that structure is simple, a little repair, do not have the advantages such as wear-out part, and in the utility model, labyrinth gland 4 seals as first.The spacing of described stiff end sealing ring and described movable end sealing ring reduces from inside to outside successively, the impact of being expanded with heat and contract with cold the closer to the sealing ring of cylinder of rotary kiln 1 is larger, thus spacing is slightly large, and spacing reduces from inside to outside successively, can strengthen the sealing effectiveness of labyrinth seal.
Wherein, along described cylinder of rotary kiln 1 axially, the length of described seal closure 3 is 3-5 times of described labyrinth gland 4 length, described seal closure 3 is also provided with suction opeing, described suction opeing is positioned at directly over the outlet of described labyrinth gland 4, and described suction opeing is connected with air-introduced machine 7 by induced duct 6.Make labyrinth gland 4 and flap 5 have enough distances like this, and make to form enough negative pressure space in seal closure 3, reduce from the dust emission of labyrinth gland 4 close to flap 5, to a certain degree play the effect of protection flap 5.
The described combination sealing arrangement for rotary kiln, the spacing of described stiff end sealing ring and described movable end sealing ring is 40-50mm.The spacing of stiff end sealing ring and movable end sealing ring has best sealing effectiveness within the scope of this.
As shown in Figure 1, the described combination sealing arrangement for rotary kiln, described seal closure 3 bottom is provided with ash discharging hole.Enter in seal closure 3 that the airborne dust had little time by air-introduced machine 7 is taken away can be discharged from ash discharging hole, reduce the dust stratification in seal closure 3.
The described combination sealing arrangement for rotary kiln, described seal closure 3 is heat resisting steel with the material of described flap 5.Enter gas in seal closure 3 and airborne dust has high temperature, adopt heat resisting steel can increase the service life of seal closure 3 and flap 5.
During work, labyrinth gland 4 forms first and seals between cylinder of rotary kiln 1 and kiln hood 2; Air-introduced machine 7 makes to form negative pressure in seal closure 3, is taken away on a small quantity, and is collected, again can insert in rotary kiln and use from the bleed airborne dust of seal closure 3 of labyrinth gland 4 by air-introduced machine 7; The flap 5 be connected with seal closure 3 forms second and seals, and reduces the airborne dust of rotary kiln outside of bleeding further.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (6)
1. for a combination sealing arrangement for rotary kiln, it is characterized in that, comprising:
Seal closure, it is the tubular structure of both ends open; Described seal closure is sheathed on cylinder of rotary kiln, and one end is fixedly connected with kiln hood, and the first end of the other end and multiple flap is fixedly linked; Described multiple flap is the steel disc that cross section is circular arc, the radius of described circular arc is equal with the radius of described cylinder of rotary kiln, described multiple flap overlaps setting mutually around described seal closure, and the lap area of adjacent flap is at least 1/3 of a slice flap area, second end of described multiple flap all contacts with described cylinder of rotary kiln outer surface, and is all 20-40 ° of angle with described cylinder of rotary kiln outer surface;
Labyrinth gland, it is inner that it is arranged at described seal closure, comprise multiple stiff end sealing ring and multiple movable end sealing ring, described multiple stiff end sealing ring is fixed on described kiln hood, described multiple movable end sealing ring is fixed on described cylinder of rotary kiln, described multiple stiff end sealing ring and described multiple movable end sealing ring interval are arranged, and form labyrinth-like structure; The spacing of described stiff end sealing ring and described movable end sealing ring reduces from inside to outside successively;
Wherein, along described cylinder of rotary kiln axially, the length of described seal closure is 3-5 times of described labyrinth gland length, and described seal closure is also provided with suction opeing, described suction opeing is positioned at directly over the outlet of described labyrinth gland, and described suction opeing is connected with air-introduced machine by induced duct.
2., as claimed in claim 1 for the combination sealing arrangement of rotary kiln, it is characterized in that, the spacing of described stiff end sealing ring and described movable end sealing ring is 40-50mm.
3., as claimed in claim 1 for the combination sealing arrangement of rotary kiln, it is characterized in that, described seal closure and described kiln hood are formed in one.
4., as claimed in claim 1 for the combination sealing arrangement of rotary kiln, it is characterized in that, described seal closure bottom is provided with ash discharging hole.
5. as claimed in claim 1 for the combination sealing arrangement of rotary kiln, it is characterized in that, second end of described flap is also surrounded with a steel wire rope, described steel wire rope is connected with a balancing weight, with the outer surface making the second end of described flap be close to described cylinder of rotary kiln.
6., as claimed in claim 1 for the combination sealing arrangement of rotary kiln, it is characterized in that, the material of described seal closure and described flap is heat resisting steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173569.8U CN204535366U (en) | 2015-03-26 | 2015-03-26 | A kind of combination sealing arrangement for rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173569.8U CN204535366U (en) | 2015-03-26 | 2015-03-26 | A kind of combination sealing arrangement for rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204535366U true CN204535366U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520173569.8U Expired - Fee Related CN204535366U (en) | 2015-03-26 | 2015-03-26 | A kind of combination sealing arrangement for rotary kiln |
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| CN (1) | CN204535366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764319A (en) * | 2015-03-26 | 2015-07-08 | 南宁广发重工集团有限公司 | Combined sealing device for rotary kiln |
-
2015
- 2015-03-26 CN CN201520173569.8U patent/CN204535366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764319A (en) * | 2015-03-26 | 2015-07-08 | 南宁广发重工集团有限公司 | Combined sealing device for rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20200326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |