CN103788966A - High-temperature resistant expansion joint for dry quenching - Google Patents

High-temperature resistant expansion joint for dry quenching Download PDF

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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
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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
Application number
CN201410041604.0A
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Chinese (zh)
Inventor
郭锐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Original Assignee
Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd filed Critical Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority to CN201410041604.0A priority Critical patent/CN103788966A/en
Publication of CN103788966A publication Critical patent/CN103788966A/en
Pending legal-status Critical Current

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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

The high temperature resistant expansion joint of a kind of dry coke quenching
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).
CN201410041604.0A 2014-01-28 2014-01-28 High-temperature resistant expansion joint for dry quenching Pending CN103788966A (en)

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

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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

Publications (1)

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CN103788966A true CN103788966A (en) 2014-05-14

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Cited By (3)

* Cited by examiner, † Cited by third party
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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Publication number Priority date Publication date Assignee Title
JPH07268343A (en) * 1994-03-31 1995-10-17 Nkk Corp Expansion joint for connecting primary dust removing device in coke dry quencher
CN102241995A (en) * 2010-05-11 2011-11-16 五冶集团上海有限公司 Dry quenching expansion joint firebrick structure construction technology
CN102732272A (en) * 2012-07-05 2012-10-17 安阳钢铁股份有限公司 Expansion joint of coke dry quenching chamber recycle gas outlet
CN202730063U (en) * 2012-06-07 2013-02-13 南通曙光波纹管制造有限公司 Dry quenching rectangular metal high temperature compensator
CN203866243U (en) * 2014-01-28 2014-10-08 甘肃酒钢集团宏兴钢铁股份有限公司 High-temperature-resistant expansion joint for dry quenching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07268343A (en) * 1994-03-31 1995-10-17 Nkk Corp Expansion joint for connecting primary dust removing device in coke dry quencher
CN102241995A (en) * 2010-05-11 2011-11-16 五冶集团上海有限公司 Dry quenching expansion joint firebrick structure construction technology
CN202730063U (en) * 2012-06-07 2013-02-13 南通曙光波纹管制造有限公司 Dry quenching rectangular metal high temperature compensator
CN102732272A (en) * 2012-07-05 2012-10-17 安阳钢铁股份有限公司 Expansion joint of coke dry quenching chamber recycle gas outlet
CN203866243U (en) * 2014-01-28 2014-10-08 甘肃酒钢集团宏兴钢铁股份有限公司 High-temperature-resistant expansion joint for dry quenching

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Title
谭春华等: "干熄焦伸缩节浇注料结构改为耐高温结构的施工技术", 《工业建筑》 *

Cited By (5)

* Cited by examiner, † Cited by third party
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
CN104004531B (en) * 2014-06-12 2018-02-27 鞍钢股份有限公司 A kind of coke dry quenching furnace telescopic joint construction method
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
CN104405979B (en) * 2014-11-07 2016-08-31 马钢(集团)控股有限公司 Dry coke quenching conveyance conduit Wear-resistant, high-temperature resistant connects buffer unit
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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Application publication date: 20140514

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