CN220103712U - Sealing device for hot smoke hood of rotary kiln - Google Patents
Sealing device for hot smoke hood of rotary kiln Download PDFInfo
- Publication number
- CN220103712U CN220103712U CN202120035857.2U CN202120035857U CN220103712U CN 220103712 U CN220103712 U CN 220103712U CN 202120035857 U CN202120035857 U CN 202120035857U CN 220103712 U CN220103712 U CN 220103712U
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- Prior art keywords
- ring plate
- fixed
- hood
- sealing
- hot
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- 238000007789 sealing Methods 0.000 title claims abstract description 58
- 239000000779 smoke Substances 0.000 title claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to a sealing device for a hot smoke hood of a rotary kiln, which belongs to the technical field of rotary kiln sealing, and particularly comprises a kiln body and a hot smoke hood arranged on the kiln body, wherein fixing ring plates are respectively fixed at the outer sides of two ends of the hot smoke hood, one ends of the fixing ring plates are welded on the hot smoke hood, a gap is reserved between the fixing ring plates and the kiln body, graphite packing is filled in the gap, an annular pressing plate is arranged at the other end of the fixing ring plates, the annular pressing plate is fixed on the fixing ring plates through fastening bolts, and disc springs are arranged on the fastening bolts.
Description
Technical Field
The utility model relates to a sealing device for a hot smoke hood of a rotary kiln, and belongs to the technical field of rotary kiln sealing.
Background
At present, the rotary kiln is widely applied to a plurality of production industries such as building materials, metallurgy, chemical industry, mines, environmental protection and the like, and provides required materials for various industries by carrying out mechanical, physical or chemical treatment on solid materials. The rotary kiln has become core production equipment in the industrial field, wherein the porous rotary kiln has the characteristics of high heat efficiency, small occupied area, convenient operation and the like, and has been widely applied to the industries.
The existing hot smoke hood seal of the rotary kiln mainly adopts a fish scale seal type seal and a filler seal, but the existing fish scale seal type seal has high air leakage rate and poor sealing effect, and the existing filler seal lacks a cooling device, so that the condition that the sealing filler is easy to cause seal failure at high temperature when the kiln body is operated for a long time, thereby causing air leakage, seriously reducing the working performance of the rotary kiln and having short service life.
Disclosure of Invention
The utility model provides the rotary kiln hot smoke hood sealing device which has the advantages of simple structure, reasonable design and good cooling effect, and can effectively prolong the service life of a sealing mechanism and improve the reliability.
In order to achieve the above purpose, the technical scheme adopted by the utility model is that the sealing device for the hot smoke hood of the rotary kiln comprises a kiln body and the hot smoke hood arranged on the kiln body, wherein the outer sides of two ends of the hot smoke hood are respectively fixed with a fixed ring plate, one end of each fixed ring plate is welded on the hot smoke hood, a gap is reserved between each fixed ring plate and the kiln body, graphite packing is filled in the gap, an annular pressing plate is arranged at the other end of each fixed ring plate, the annular pressing plate is fixed on the corresponding fixed ring plate through a fastening bolt, and a disc spring is arranged on the corresponding fastening bolt.
Preferably, at least one side of the two sides of the interior of the hot smoke hood is provided with a labyrinth sealing device, the labyrinth sealing device comprises an inner sealing ring fixed on the kiln body and an outer sealing ring fixed on the inner wall of the hot smoke hood, a plurality of sealing grooves are formed in the inner sealing ring and the outer sealing ring, and the inner sealing ring and the outer sealing ring are connected through the sealing grooves in a buckled mode.
Preferably, an annular cooling chamber is further arranged between the fixed ring plate and the hot smoke hood, the annular cooling chamber mainly comprises an inner ring plate, an outer ring plate and a side ring plate, the inner ring plate and the outer ring plate are respectively fixed on the hot smoke hood, the side ring plate is fixed at the end parts of the inner ring plate and the outer ring plate, the fixed ring plate is fixed on the side ring plate, and the outer ring plate is provided with a cooling medium inlet and a cooling medium outlet.
Preferably, the inner wall of the hot smoke cover is also provided with an insulating layer.
Preferably, the fixed ring plate is further provided with a plurality of support rods, the support rods are circumferentially arranged along the kiln body, the support rods are arranged on the fixed ring plate, the support rods are provided with compression springs and adjusting nuts, the bottoms of the support rods are provided with a plurality of wear-resistant support blocks, and the wear-resistant support blocks form a circle along the outer wall of the kiln body.
Compared with the prior art, the utility model has the following technical effects: the utility model has simple structure and convenient use, the outer sides of the two ends of the hot smoke hood are respectively provided with the annular cooling chambers, and then the graphite packing is arranged between the annular cooling chambers and the kiln body, so that the sealing performance of the sealing filler can be effectively ensured, the service life of the sealing mechanism is prolonged, and the sealing reliability is improved; meanwhile, the annular cooling cavity is cooled by water or/and air, and the cooling effect is better.
In addition, the labyrinth sealing devices are arranged at the inner sides of the two ends of the fume guiding hood and play a role in primary sealing, so that the primary blocking effect on gas and dust can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a third embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of a fifth embodiment of the present utility model.
Fig. 5 is a schematic structural diagram of a fourth embodiment of the present utility model.
Fig. 6 is a schematic structural diagram of a sixth embodiment of the present utility model.
Fig. 7 is a schematic structural diagram of a seventh embodiment of the present utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1, the rotary kiln hot hood sealing device comprises a kiln body 1 and a hot hood 2 arranged on the kiln body, wherein an insulating layer 4 is further arranged on the inner wall of the hot hood 2, fixed ring plates 3 are respectively fixed on the outer sides of two ends of the hot hood 2, one ends of the fixed ring plates 3 are welded on the hot hood 2, a gap 5 is reserved between the fixed ring plates 3 and the kiln body 1, graphite packing 6 is filled in the gap 5, an annular pressing plate 7 is arranged at the other end of the fixed ring plates 3, the annular pressing plate 7 is fixed on the fixed ring plates 3 through fastening bolts 8, and disc springs 9 are arranged on the fastening bolts 8.
According to the utility model, the fixed ring plates are arranged on two sides of the hot smoke hood, graphite packing is filled between the fixed ring plates and the kiln body, and the annular pressing plate is used for pressing, so that extrusion sealing is realized. The disc spring mainly plays a role in preventing looseness, and prevents the looseness from occurring in the vibration process to influence the sealing of the hot smoke hood.
Example two
As shown in fig. 2 and 3, a labyrinth sealing device is arranged at one side of the interior of the hot smoke hood 2, the labyrinth sealing device comprises an inner sealing ring 11 fixed on the kiln body 1 and an outer sealing ring 12 fixed on the inner wall of the hot smoke hood 2, a plurality of sealing grooves 13 are formed in the inner sealing ring 11 and the outer sealing ring 12, and the inner sealing ring 11 and the outer sealing ring 12 are connected through the sealing grooves in a buckled mode. The remainder is the same as in embodiment one.
In the second embodiment, the labyrinth sealing device can achieve the effect of preliminary blocking gas and dust, so that dust is prevented from entering the friction part of the sealing filler, abrasion is increased, and sealing reliability is affected.
Example III
As shown in fig. 3, labyrinth seals are provided on both sides of the interior of the hood 2, and the rest is the same as in the first embodiment.
Example IV
As shown in fig. 5, an annular cooling chamber 14 is further arranged between the fixed ring plate 3 and the hot smoke hood 2, the annular cooling chamber 14 mainly comprises an inner ring plate 15, an outer ring plate 16 and a side ring plate 10, the inner ring plate 15 and the outer ring plate 16 are respectively fixed on the hot smoke hood 2, the side ring plate 10 is fixed at the end parts of the inner ring plate 15 and the outer ring plate 16, the fixed ring plate 3 is fixed on the side ring plate 10, and the outer ring plate 16 is provided with a cooling medium inlet and a cooling medium outlet. The remainder is the same as in embodiment one.
In the embodiment, the annular cooling chambers are arranged at the outer parts of the two ends of the hot smoke hood, and the graphite packing is cooled through the annular cooling chambers, so that the graphite packing can be kept at a normal working temperature, the high temperature is prevented from failing in the packing type seal, the hot smoke hood is further caused to leak air, and the service life of the graphite packing can be prolonged.
Example five
As shown in fig. 4, labyrinth seals are provided on both sides of the interior of the hood 2, and the rest is the same as in the fourth embodiment.
Example six
As shown in fig. 6, the fixed ring plate 3 is further provided with a plurality of support rods 17, the support rods 17 are arranged along the circumferential direction of the kiln body, the support rods 17 are arranged on the fixed ring plate 3, the support rods 17 are provided with compression springs and adjusting nuts, the bottoms of the support rods are provided with a plurality of wear-resistant support blocks 18, and the wear-resistant support blocks 18 form a circle along the outer wall of the kiln body. The rest is the same as in the fourth embodiment.
Example seven
As shown in fig. 7, labyrinth seals are provided on both sides of the interior of the hood 2, and the rest is the same as in the sixth embodiment.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (5)
1. Rotary kiln heat smoke hood sealing device, including the kiln body and install the heat smoke hood on the kiln body, its characterized in that: the graphite packing is filled in the gap, an annular pressing plate is mounted at the other end of the fixed ring plate, the annular pressing plate is fixed on the fixed ring plate through a fastening bolt, and a disc spring is mounted on the fastening bolt.
2. A rotary kiln hot hood sealing device according to claim 1, wherein: the hot gas hood is characterized in that at least one side of the two sides of the interior of the hot gas hood is provided with a labyrinth sealing device, the labyrinth sealing device comprises an inner sealing ring fixed on the kiln body and an outer sealing ring fixed on the inner wall of the hot gas hood, a plurality of sealing grooves are formed in the inner sealing ring and the outer sealing ring, and the inner sealing ring and the outer sealing ring are connected through the sealing grooves in a buckled mode.
3. A rotary kiln hot hood sealing device according to claim 1, wherein: still be provided with annular cooling cavity between fixed ring plate and the hot smoke hood, annular cooling cavity mainly comprises interior ring plate, outer ring plate and side ring plate, interior ring plate and outer ring plate are fixed respectively on the hot smoke hood, the tip of interior ring plate, outer ring plate is fixed with the side ring plate, fixed ring plate is fixed on the side ring plate, be provided with cooling medium entry and cooling medium export on the outer ring plate.
4. A rotary kiln hot hood sealing device according to any one of claims 1 to 3, wherein: and an insulating layer is further arranged on the inner wall of the hot smoke cover.
5. A rotary kiln hot hood sealing device according to any one of claims 1 to 3, wherein: the kiln is characterized in that a plurality of support rods are further arranged on the fixed ring plate, the support rods are circumferentially arranged along the kiln body, the support rods are arranged on the fixed ring plate, a compression spring and an adjusting nut are arranged on the support rods, a plurality of wear-resistant support blocks are arranged at the bottoms of the support rods, and the wear-resistant support blocks form a circle along the outer wall of the kiln body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120035857.2U CN220103712U (en) | 2021-01-07 | 2021-01-07 | Sealing device for hot smoke hood of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120035857.2U CN220103712U (en) | 2021-01-07 | 2021-01-07 | Sealing device for hot smoke hood of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220103712U true CN220103712U (en) | 2023-11-28 |
Family
ID=88882144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120035857.2U Active CN220103712U (en) | 2021-01-07 | 2021-01-07 | Sealing device for hot smoke hood of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220103712U (en) |
-
2021
- 2021-01-07 CN CN202120035857.2U patent/CN220103712U/en active Active
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| GR01 | Patent grant |