CN103788966A - High-temperature resistant expansion joint for dry quenching - Google Patents
High-temperature resistant expansion joint for dry quenching Download PDFInfo
- Publication number
- CN103788966A CN103788966A CN201410041604.0A CN201410041604A CN103788966A CN 103788966 A CN103788966 A CN 103788966A CN 201410041604 A CN201410041604 A CN 201410041604A CN 103788966 A CN103788966 A CN 103788966A
- Authority
- CN
- China
- Prior art keywords
- vault
- layer
- expansion joint
- flame retardant
- retardant coating
- Prior art date
- 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.)
- Pending
Links
- 230000000171 quenching Effects 0.000 title claims abstract description 17
- 238000010791 quenching Methods 0.000 title claims abstract description 16
- 239000010410 layers Substances 0.000 claims abstract description 59
- 239000011449 bricks Substances 0.000 claims abstract description 22
- 210000003027 Ear, Inner Anatomy 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 28
- 239000003063 flame retardant Substances 0.000 claims description 28
- 238000005304 joining Methods 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 24
- 239000000571 coke Substances 0.000 claims description 15
- 239000004575 stone Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials 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[O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000011819 refractory materials Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 methods Methods 0.000 abstract description 6
- 239000000463 materials Substances 0.000 abstract description 5
- 239000004927 clay Substances 0.000 abstract description 4
- 229910052570 clay Inorganic materials 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 280000871617 Vault companies 0.000 abstract 4
- 238000004321 preservation Methods 0.000 abstract 3
- 239000008187 granular materials Substances 0.000 abstract 2
- 230000001105 regulatory Effects 0.000 abstract 2
- 229910003726 AI2O3 Inorganic materials 0.000 abstract 1
- 230000002035 prolonged Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003245 working Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention relates to the field of refractory materials, in particular to a high-temperature resistant expansion joint for dry quenching. The original castable structure of the high-temperature resistant expansion joint is changed to be a refractory brick masonry structure; clay bricks and high-alumina light bricks are piled up to form a refractory layer and a heat-preservation layer during piling up, a pouring condensation process is not required, the maintaining and replacement time of the refractory material of the expansion joint is shortened, and the construction period is greatly shortened; a vault is provided with a granule backfilling layer and a vault gap pressing layer, the vault gap pressing layer is filled with clay bricks to ensure the connecting strength, a vault refractory layer and the heat-preservation layer are regulated by backfilling granules when being heated and expanded, and the refractory layer and the heat-preservation layer of a side wall and an arch corner are regulated by a side wall labyrinth layer and an arch corner labyrinth layer when being heated and expanded, the fire resistance is ensured and the service life is prolonged.
Description
Technical field
The present invention relates to fire resisting material field, particularly the high temperature resistant expansion joint of a kind of dry coke quenching.
Background technology
Dry coke quenching technique significantly improves coke quality, the steady running of promotion blast furnace in Chemical Manufacture, and along with popularizing of dry coke quenching technique, dry coke quenching effects of energy saving and emission reduction is aborning day by day obvious.But dry coke quenching production system need to be moved under hot environment, high temperature makes refractory materials and expansion joint structure be easy to damage, and at least carries out one time every year annual overhaul, and annual overhaul is mainly changed refractory materials and repaired fire resisting construction.And at present dry coke quenching high-temperature expansion joint adopts that mould material is built by laying bricks or stones, spray refractory layer more, the phenomenon that said structure ubiquity refractory materials is easily aging easily to come off, work-ing life is short.Mould material comes off and directly causes high-temperature expansion joint to burn, and has a strong impact on dry quenching system steady running.
Summary of the invention
The object of the present invention is to provide the high temperature resistant expansion joint of dry coke quenching of a kind of easy construction, long service life.
The technical solution adopted for the present invention to solve the technical problems is:
Dry coke quenching is high temperature resistant expansion joint, comprises side wall, vault and Gong Jiao, and side wall and vault are spliced into one by arch angle; Described side wall comprises side wall flame retardant coating, side wall thermal insulation layer and side wall labyrinth layer from the inside to the outside successively; Described vault is vault flame retardant coating, vault thermal insulation layer, vault tooled joint layer and particle backfill layer from the inside to the outside; Described arch angle is divided into side wall joining region and vault joining region, and side wall joining region comprises arch angle flame retardant coating, arch angle thermal insulation layer, Gong Jiao labyrinth layer and protective layer from the inside to the outside successively, and vault joining region comprises skew block and arch angle flame retardant coating from top to bottom successively.
Described side wall flame retardant coating, outer vault flame retardant coating and arch angle flame retardant coating are by mullite flame-proof brick masonry.
Described side wall thermal insulation layer, vault thermal insulation layer and arch angle thermal insulation layer are built by laying bricks or stones by High-Alumina light cinder brick.
Described side wall upper and lower ends is respectively equipped with displacement layer.
Between described side wall joining region and vault joining region, be provided with connection supporting plate, it is curved that connection supporting plate is provided with S shape.
Beneficial effect of the present invention is:
1, make former high-temperature expansion joint mould material structure into laying fireproof bricks structure.While building by laying bricks or stones, mix to build by laying bricks or stones forming flame retardant coating and thermal insulation layer with clay brick and High-Alumina light cinder brick, do not need to pour into a mould condensation process, shortened maintenance and the replacing time of expansion joint refractory materials, significantly shortened the duration.
2, vault is provided with particle backfill layer and vault tooled joint layer; in vault tooled joint layer, fill clay brick and guarantee strength of joint; when vault flame retardant coating and thermal insulation layer expanded by heating, regulate by backfill particle; when flame retardant coating, the thermal insulation layer expanded by heating at side wall and arch angle, regulate by side wall labyrinth layer, Gong Jiao labyrinth layer respectively; guarantee fire performance, improved work-ing life.
3, Gong Jiao is divided into side wall joining region and vault joining region, between side wall joining region and vault joining region, is provided with connection supporting plate, and it is curved that connection supporting plate is provided with S shape, and S shape crotch tangles the arch angle flame retardant coating of both sides.Improve the strength of joint at arch angle, be convenient to encircle angle simultaneously and build installation by laying bricks or stones.
Accompanying drawing explanation
Fig. 1 is prior art vault construction schematic diagram;
Fig. 2 is prior art sidewall structure schematic diagram;
Fig. 3 is structural representation of the present invention;
Fig. 4 is sidewall structure schematic diagram of the present invention;
Fig. 5 is that corner structure schematic diagram is encircleed in the present invention;
Fig. 6 is vault construction schematic diagram of the present invention.
Embodiment
Existing high-temperature expansion joint as illustrated in fig. 1 and 2, vault and side wall adopt the method for building to link into an integrated entity, and the independent damage of vault or side wall can only entirety be keeped in repair, and significantly increase servicing time.Meanwhile, side wall needs branch's cast flame retardant coating and thermal insulation layer, also wants pre-buried connection pin, complex process length consuming time between flame retardant coating and thermal insulation layer.
High-temperature expansion joint of the present invention as shown in Figures 2 to 4, is divided into side wall 1, vault 2 and arch angle 3, and side wall 1 and vault 2 are spliced into one by arch angle 3; Described side wall 1 comprises side wall flame retardant coating 4, side wall thermal insulation layer 5 and side wall labyrinth layer 6 from the inside to the outside successively; Described vault 2 is vault flame retardant coating 7, vault thermal insulation layer 8, vault tooled joint layer 9 and particle backfill layer 10 from the inside to the outside; Described arch angle 3 is divided into side wall joining region 11 and vault joining region 12; side wall joining region 11 comprises arch angle flame retardant coating 13, arch angle thermal insulation layer 14, Gong Jiao labyrinth layer 15 and protective layer 16 from the inside to the outside successively, and vault joining region 12 comprises skew block 17 and arch angle flame retardant coating 13 from top to bottom successively.Above-mentioned side wall 1, vault 2 and arch angle 3 adopt Split type structure, and part is damaged separately and repaired, and has significantly reduced construction volume.
Described side wall flame retardant coating 4, outer vault flame retardant coating 7 and arch angle flame retardant coating 13 are by mullite flame-proof brick masonry.Described side wall thermal insulation layer 5, vault thermal insulation layer 8 and arch angle thermal insulation layer 14 are built by laying bricks or stones by High-Alumina light cinder brick.Do not need to pour into a mould condensation process, shortened maintenance and the replacing time of expansion joint refractory materials, significantly shortened the duration.
Described side wall 1 upper and lower ends is respectively equipped with displacement layer 18.Displacement layer 18 is filled ceramic fiber blanket, the convenient high low-mounting height of side wall 1 that regulates.Between described side wall joining region 11 and vault joining region 12, be provided with and connect supporting plate 19, connect supporting plate 19 and be provided with S shape curved 20.
When use, first determine the concrete damage position of high-temperature expansion joint, if side wall 1, vault 2 and arch angle 3 are damaged separately, repair separately corresponding component.If high-temperature expansion joint entirety is damaged, first remove original high-temperature expansion joint, build out side wall flame retardant coating 4, side wall thermal insulation layer 5 and the side wall labyrinth layer 6 of side wall 1 by laying bricks or stones, masonry arch angle 3 again, side wall joining region 11 and the side wall 1 at arch angle 3 are docked, and regulate height by displacement layer 18, go out to overlap vault 2 at the skew block 17 of vault joining region 12 again, between side wall joining region 11 and vault joining region 12, install and connect supporting plate 19, when keep in repair next time, dismantle from connection supporting plate 19 is installed, be also convenient to repair separately corresponding component.
Claims (5)
1. the high temperature resistant expansion joint of dry coke quenching, is characterized in that comprising side wall (1), vault (2) and arch angle (3), and side wall (1) and vault (2) are spliced into one by arch angle (3); Described side wall (1) comprises side wall flame retardant coating (4), side wall thermal insulation layer (5) and side wall labyrinth layer (6) from the inside to the outside successively; Described vault (2) is vault flame retardant coating (7), vault thermal insulation layer (8), vault tooled joint layer (9) and particle backfill layer (10) from the inside to the outside; Described arch angle (3) is divided into side wall joining region (11) and vault joining region (12); side wall joining region (11) comprises arch angle flame retardant coating (13), arch angle thermal insulation layer (14), Gong Jiao labyrinth layer (15) and protective layer (16) from the inside to the outside successively, and vault joining region (12) comprise skew block (17) and arch angle flame retardant coating (13) from top to bottom successively.
2. the high temperature resistant expansion joint of a kind of dry coke quenching according to claim 1, is characterized in that described side wall flame retardant coating (4), outer vault flame retardant coating (7) and arch angle flame retardant coating (13) are by mullite flame-proof brick masonry.
3. the high temperature resistant expansion joint of a kind of dry coke quenching according to claim 1, is characterized in that described side wall thermal insulation layer (5), vault thermal insulation layer (8) and encircles angle thermal insulation layer (14) being built by laying bricks or stones by High-Alumina light cinder brick.
4. the high temperature resistant expansion joint of a kind of dry coke quenching according to claim 1, is characterized in that described side wall (1) upper and lower ends is respectively equipped with displacement layer (18).
5. the high temperature resistant expansion joint of a kind of dry coke quenching according to claim 1, is characterized in that being provided with and connecting supporting plate (19) between described side wall joining region (11) and vault joining region (12), connects supporting plate (19) and is provided with S shape curved (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410041604.0A CN103788966A (en) | 2014-01-28 | 2014-01-28 | High-temperature resistant expansion joint for dry quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410041604.0A CN103788966A (en) | 2014-01-28 | 2014-01-28 | High-temperature resistant expansion joint for dry quenching |
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| CN103788966A true CN103788966A (en) | 2014-05-14 |
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| CN201410041604.0A Pending CN103788966A (en) | 2014-01-28 | 2014-01-28 | High-temperature resistant expansion joint for dry quenching |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004531A (en) * | 2014-06-12 | 2014-08-27 | 鞍钢股份有限公司 | Method for constructing expansion joint of dry quenching furnace |
| CN104405979A (en) * | 2014-11-07 | 2015-03-11 | 马钢(集团)控股有限公司 | Wear-resistant high-temperature-resistant connection buffering device for dry quenching conveying pipeline |
| CN109654483A (en) * | 2018-12-10 | 2019-04-19 | 安徽金禾实业股份有限公司 | A kind of circulating fluidized bed boiler material returning device expansion joint Quick overhaul method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004531A (en) * | 2014-06-12 | 2014-08-27 | 鞍钢股份有限公司 | Method for constructing expansion joint of dry quenching furnace |
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| CN104405979A (en) * | 2014-11-07 | 2015-03-11 | 马钢(集团)控股有限公司 | Wear-resistant high-temperature-resistant connection buffering device for dry quenching conveying pipeline |
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| CN109654483A (en) * | 2018-12-10 | 2019-04-19 | 安徽金禾实业股份有限公司 | A kind of circulating fluidized bed boiler material returning device expansion joint Quick overhaul method and device |
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