CN102241995A - Dry quenching expansion joint firebrick structure construction technology - Google Patents
Dry quenching expansion joint firebrick structure construction technology Download PDFInfo
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- CN102241995A CN102241995A CN2010101707401A CN201010170740A CN102241995A CN 102241995 A CN102241995 A CN 102241995A CN 2010101707401 A CN2010101707401 A CN 2010101707401A CN 201010170740 A CN201010170740 A CN 201010170740A CN 102241995 A CN102241995 A CN 102241995A
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Abstract
The invention relates to a dry quenching expansion joint firebrick structure construction technology. According to the invention, a bottom structure and metal casings on the two sides are reserved, and a dry quenching expansion joint filling compound structure is changed into a firebrick structure. The construction technology is characterized in the following steps that: (a) arc bellows on the top of the expansion joint and rest filling compound are dismounted; (b) anchorages and filling compound on the two sides of the expansion joint are dismounted, until an expansion joint bottom level is reached; (c) dilatation joints (28) are arranged; (d) firebrick walls are constructed on the two sides of the expansion joint; (e) an arc firebrick structure and heat-insulating bricks are constructed on the top of the expansion joint; (f) a protection sleeve is welded. With the dry quenching expansion joint firebrick structure construction technology provided by the invention, dilatation joint dimension, air tightness and high temperature resistance of the expansion joint can be ensured; axial displacement of the expansion joint can be presented; thermal shock stability and air-flow scouring resistance of the inner refractory material lining of the expansion joint can be improved; service life of the expansion joint can be prolonged; maintenance cost can be greatly reduced; and construction time can be reduced.
Description
Technical field
The present invention relates to a kind of stove maintenance constructional method, specifically, is a kind of dry coke quenching telescopic joint firebrick structure construction technology.
Background technology
The dry coke quenching telescopic joint also is expansion joint traditionally, or loop expansion pipe.Constituting its operative body and be annexes such as corrugated tube (a kind of elastic element) and end pipe, support, flange, conduit forms.Utilize effective dilatation of its operative body corrugated tube, change the one-time dedusting body of heater by expanding with heat and contract with cold etc. former thereby producing axial dimensional variations.The design of telescopic joint is very complicated, and design is now often only calculated and checked some parameters, the stress, fatigue lifetime, rigidity and the stability that cause as voltage endurance capability, displacement, but seldom relate to the refractory materials of telescopic joint.The telescopic joint refractory materials is mould material structure (referring to Fig. 1), is divided into working lining and thermofin.Working lining high alumina castable thickness is 100mm, and thermofin is that heat-insulation light mould material thickness is 308mm.In the production process, often blowing out produces acute cold causus environment, and the mould material internal structure is produced frequent contraction change; Also have the frequent booster of boiler, produce the water vapour that exceeds standard behind the booster and mould material is damaged through being recycled to the telescopic joint place.After the mould material of working lining and thermal insulation layer wrecked, the metal of telescopic joint burnt, burns out, and caused whole telescopic joint to damage.
In the past at this whole telescopic joint damaged condition, the way of the telescopic joint that general employing more renews, this method expense is high and the engineering time is long, result of use is undesirable.
Therefore the way of the known telescopic joint that more renews exists above-mentioned all inconvenience and problem.
Summary of the invention
Purpose of the present invention, be to propose a kind of minimizing maintenance cost and shorten the engineering time, do not change telescopic joint bottom construction and two sides metal shell, dry coke quenching telescopic joint mould material structure is changed into the dry coke quenching telescopic joint firebrick structure construction technology of firebrick structure.
For achieving the above object, technical solution of the present invention is:
A kind of dry coke quenching telescopic joint firebrick structure construction technology keeps described telescopic joint bottom construction and two sides metal shell, changes dry coke quenching telescopic joint mould material structure into firebrick structure, it is characterized in that may further comprise the steps:
A) the top arc corrugated tube and the remaining mould material of the described telescopic joint of dismounting;
B) remove the both sides anchoring piece and the mould material of described telescopic joint, and remove the level attitude of the bottom of described telescopic joint;
C) dilatation joint is set: the dilatation joint 10mm that former telescopic joint intermediate expansion seam 80mm and both sides thereof are respectively equipped with changes into respectively staying on both sides and establishes the wide dilatation joint of 45mm;
D) build telescopic joint both sides side wall refractory brick by laying bricks or stones: be close to described side wall metal shell waved plate and build side wall thermofin light heat-insulation brick by laying bricks or stones, build side wall working lining refractory fireclay block by laying bricks or stones in the inboard of described side wall thermofin light heat-insulation brick again, when building described refractory brick by laying bricks or stones, the telescopic joint both sides are respectively stayed and are established the wide dilatation joint of 45mm, fill behind the ceramic fiber blanket boil down to 45mm thickness that usefulness 60mm is thick in described dilatation joint; It should not be straight joint that the wide dilatation joint of establishing of 45mm is respectively stayed on described both sides, should be the staggered seam in inside and outside as shown in Figure 3; Top and bottom appropriate location at described telescopic joint both sides side wall is provided with the 10mm dilatation joint respectively, and fills ceramic fiber blanket in described 10mm dilatation joint; , change into from the thermal insulation layer at the bottom of the skew block more than the described brick plate and to build refractory fireclay block by laying bricks or stones as brick plate at the heat-resistance stainless steel plate of described telescopic joint both walls skew block bottom welding 10mm;
E) build the top arc refractory brick and the insulating brick of telescopic joint by laying bricks or stones: when building the top arc refractory brick of described telescopic joint by laying bricks or stones, installing arch lifts, staggered building by laying bricks or stones, squeeze into neck brick by standard, the radiation seam of described vault arc refractory brick should coincide with radial direction, and the thickness that makes working lining refractory brick is 416mm, and the thickness of high alumina matter light cinder brick is 117mm; Respectively stay on described telescopic joint both sides earlier and establish the wide dilatation joint of 45mm, adopt the thick ceramic fiber blanket of 60mm to lay in the described dilatation joint, in the middle of the dilatation joint of described both sides, build vault working lining mullite firebrick then, should adopt the mullite firebrick extruding to adopt the thick ceramic fiber blanket of 60mm wide when building by laying bricks or stones to 45mm, the limit is built the mullite firebrick limit by laying bricks or stones and is pushed down described mullite firebrick with vault thermofin light high-alumina insulating brick, and push down described both sides dilatation joint on both sides with top tooled joint clay brick, behind light filling heat-insulating granules on the vault thermofin, seal by disposable dust remover furnace shell and top seal steel plate; After having built telescopic joint by laying bricks or stones, remove arch and lift, fire-resistant brickwork joint is carried out jointing, and be stained with the clay chamotte with the ceramic fibre rope knot of three diameter 20mm and squeeze in the working face of described dilatation joint, to guarantee the tightness of dilatation joint;
F) welding protection cover: finish build vault refractory brick and the heat-insulating granules backfill of vault top by laying bricks or stones after, in described telescopic joint vault top welding steel sealing as protective sleeve, during welding steel, a welding steel on one side so that steel plate free expansion and contraction.
Dry coke quenching telescopic joint firebrick structure construction technology of the present invention can also be further achieved by the following technical measures.
Weighting material in the aforesaid dry coke quenching telescopic joint firebrick structure construction technology, wherein said dilatation joint is that working temperature is 1260 °, and volume density is 220kg/m
3Ceramic fiber blanket.
After adopting technique scheme, dry coke quenching telescopic joint firebrick structure construction technology of the present invention has the following advantages:
1, guarantees dilatation joint size, resistance to air loss and the high thermal resistance of telescopic joint, embody telescopic joint axial displacement and change, strengthen the temperature vibration stability and the opposing airflow scouring ability of telescopic joint inner lining refractory.
2, prolong telescopic joint duration of service.
3, significantly reduce maintenance cost and shortening engineering time.
Description of drawings
Fig. 1 is the structural representation of known telescopic joint mould material;
Fig. 2 changes the structural representation of refractory brick into for telescopic joint of the present invention;
Fig. 3 is that telescopic joint side wall section structure of the present invention changes synoptic diagram;
Fig. 4 is a telescopic joint of the present invention top firebrick structure synoptic diagram;
Fig. 5 is the main construction techniques schema of dry coke quenching telescopic joint maintenance.
Among the figure: 1 telescopic joint end face waved plate; 2 telescopic joint working lining refractory castablies, 3 telescopic joint sidepiece heat insulating casting materials, 4 telescopic joint side wave cards; 5 telescopic joint lateral protection bricks; 6 telescopic joints bottom waved plate, 7 telescopic joints bottom protection tile, 8 flexible bottom refractory castablies; 9 telescopic joints bottom heat insulating casting material; 10 expansion joints, 11 top slide plates, 12 vault thermofin light high-alumina insulating bricks; 13 vault working lining mullite firebricks; 14 vault thermofin light thermal-insulation particles, 15 side wall waved plates, the dilatation joint of 16 fiberfill fibers cottons; 17 side wall thermofin light heat-insulation bricks; 18 side wall working lining refractory fireclay blocks, 19 bottom working lining refractory fireclay blocks, 20 ceramic fiber blankets; 21 clay bricks; 22 ceramic fibers are turned round rope, 23 disposable dust remover furnace shells, 24 top tooled joint clay bricks; 25 dilatation joints; 26 top seal steel plates, 27 top steel plate sliding joints, 28 dilatation joints.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is illustrated further.
Dry coke quenching telescopic joint firebrick structure construction technology of the present invention can be constructed according to the schema of the main construction techniques of the listed dry coke quenching telescopic joint of table 1 maintenance.
Now see also Fig. 2 to Fig. 4, Fig. 2 is the structural representation that telescopic joint of the present invention changes refractory brick into, and Fig. 3 is that telescopic joint side wall section structure of the present invention changes synoptic diagram, and Fig. 4 is a telescopic joint of the present invention top firebrick structure synoptic diagram.As shown in table 1, when dry coke quenching telescopic joint firebrick structure construction technology of the present invention is implemented, at first need reconnoitre the scene, keep described telescopic joint bottom construction and two sides metal shell, operate according to following steps then:
A) the top arc corrugated tube and the remaining mould material of the described telescopic joint of dismounting, owing to come off after the mould material of telescopic joint working lining and thermal insulation layer goes to pot, the metal of telescopic joint burns and burns out, and in order to guarantee to build by laying bricks or stones the thickness of refractory brick, needs to remove telescopic joint top arc corrugated tube and residue mould material;
B) the both sides anchoring piece and the mould material of the described telescopic joint of dismounting if telescopic joint both sides corrugated tube is intact, are not removed, but will remove the anchoring piece and the mould material of telescopic joint both sides, remove the bottom level attitude;
C) dilatation joint (28) is set: the dilatation joint 10mm that former telescopic joint intermediate expansion seam 80mm and both sides thereof are respectively equipped with changes into respectively staying on both sides and establishes the wide dilatation joint of 45mm (28), weighting material in the described dilatation joint (28) is that working temperature is 1260 °, and volume density is 220kg/m
3Ceramic fiber blanket;
D) build telescopic joint both sides side wall refractory brick by laying bricks or stones: be close to described side wall metal shell waved plate (15) and build side wall thermofin light heat-insulation brick (17) by laying bricks or stones, build side wall working lining refractory fireclay block (18) by laying bricks or stones in the inboard of described side wall thermofin light heat-insulation brick (17) again, when building described refractory brick (18) by laying bricks or stones, the telescopic joint both sides are respectively stayed and are established the wide dilatation joint of 45mm (28), fill behind ceramic fiber blanket (20) the boil down to 45mm thickness that usefulness 60mm is thick in described dilatation joint (28); It should not be straight joint that the wide dilatation joint of establishing (28) of 45mm is respectively stayed on described both sides, should be about staggered seam; Top and bottom appropriate location at described telescopic joint both sides side wall is provided with 10mm dilatation joint (16) respectively, and fills ceramic fiber blanket (20) in described 10mm dilatation joint (16); , change into from the thermal insulation layer at the bottom of the skew block more than the described brick plate and to build refractory fireclay block by laying bricks or stones as brick plate at the heat-resistance stainless steel plate of described telescopic joint both walls skew block bottom welding 10mm;
E) build the top arc refractory brick and the insulating brick of telescopic joint by laying bricks or stones: when building the top arc refractory brick of described telescopic joint by laying bricks or stones, installing arch lifts, staggered building by laying bricks or stones, squeeze into neck brick by standard, the radiation seam of described vault arc refractory brick should coincide with radial direction, and the thickness that makes working lining refractory brick is 416mm, and the thickness of high alumina matter light cinder brick is 117mm; Respectively stay on described telescopic joint both sides earlier and establish the wide dilatation joint of 45mm (28), adopt the thick ceramic fiber blanket (20) of 60mm to lay in the described dilatation joint, in the middle of described both sides dilatation joints (28), build vault working lining mullite firebrick (13) then, should adopt mullite firebrick (13) extruding to adopt the thick ceramic fiber blanket (20) of 60mm wide when building by laying bricks or stones to 45mm, the limit is built mullite firebrick (13) limit by laying bricks or stones and is pushed down described mullite firebrick (13) with vault thermofin light high-alumina insulating brick (12), and push down described both sides dilatation joints (28) on both sides with top tooled joint clay brick (27), light filling heat-insulating granules (14) back is sealed by disposable dust remover furnace shell (26) and top seal steel plate on the vault thermofin; After having built telescopic joint by laying bricks or stones, remove arch and lift, fire-resistant brickwork joint is carried out jointing, and be stained with clay chamotte (22) with the ceramic fibre rope knot of three diameter 20mm and squeeze in the working face of described dilatation joint (28);
F) welding protection cover: finish build vault refractory brick and the heat-insulating granules backfill of vault top by laying bricks or stones after, in described telescopic joint vault top welding steel sealing as protective sleeve, during welding steel, a welding steel on one side so that steel plate free expansion and contraction.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique under the situation that does not break away from the spirit and scope of the present invention, can also be made various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1. a dry coke quenching telescopic joint firebrick structure construction technology keeps described telescopic joint bottom construction and two sides metal shell, changes dry coke quenching telescopic joint mould material structure into firebrick structure, it is characterized in that may further comprise the steps:
A) the top arc corrugated tube and the remaining mould material of the described telescopic joint of dismounting;
B) remove the both sides anchoring piece and the mould material of described telescopic joint, and remove the level attitude of the bottom of described telescopic joint;
C) dilatation joint (28) is set: the dilatation joint 10mm that former telescopic joint intermediate expansion seam 80mm and both sides thereof are respectively equipped with changes into respectively staying on both sides and establishes the wide dilatation joint of 45mm (28);
D) build telescopic joint both sides side wall refractory brick by laying bricks or stones: be close to described side wall metal shell waved plate (15) and build side wall thermofin light heat-insulation brick (17) by laying bricks or stones, build side wall working lining refractory fireclay block (18) by laying bricks or stones in the inboard of described side wall thermofin light heat-insulation brick (17) again, when building described refractory brick (18) by laying bricks or stones, the telescopic joint both sides are respectively stayed and are established the wide dilatation joint of 45mm (28), fill behind ceramic fiber blanket (20) the boil down to 45mm thickness that usefulness 60mm is thick in described dilatation joint (28); It should not be straight joint that the wide dilatation joint of establishing (28) of 45mm is respectively stayed on described both sides, should be about staggered seam; Top and bottom appropriate location at described telescopic joint both sides side wall is provided with 10mm dilatation joint (16) respectively, and fills ceramic fiber blanket (20) in described 10mm dilatation joint (16); , change into from the thermal insulation layer at the bottom of the skew block more than the described brick plate and to build refractory fireclay block by laying bricks or stones as brick plate at the heat-resistance stainless steel plate of described telescopic joint both walls skew block bottom welding 10mm;
E) build the top arc refractory brick and the insulating brick of telescopic joint by laying bricks or stones: when building the top arc refractory brick of described telescopic joint by laying bricks or stones, installing arch lifts, staggered building by laying bricks or stones, squeeze into neck brick by standard, the radiation seam of described vault arc refractory brick should coincide with radial direction, and the thickness that makes working lining refractory brick is 416mm, and the thickness of high alumina matter light cinder brick is 117mm; Respectively stay on described telescopic joint both sides earlier and establish the wide dilatation joint of 45mm (28), adopt the thick ceramic fiber blanket (20) of 60mm to lay in the described dilatation joint, in the middle of described both sides dilatation joints (28), build vault working lining mullite firebrick (13) then, should adopt mullite firebrick (13) extruding to adopt the thick ceramic fiber blanket (20) of 60mm wide when building by laying bricks or stones to 45mm, the limit is built mullite firebrick (13) limit by laying bricks or stones and is pushed down described mullite firebrick (13) with vault thermofin light high-alumina insulating brick (12), and push down described both sides dilatation joints (28) on both sides with top tooled joint clay brick (27), light filling heat-insulating granules (14) back is sealed by disposable dust remover furnace shell (26) and top seal steel plate on the vault thermofin; After having built telescopic joint by laying bricks or stones, remove arch and lift, fire-resistant brickwork joint is carried out jointing, and be stained with clay chamotte (25) with the ceramic fibre rope knot of three diameter 20mm and squeeze in the working face of described dilatation joint (28);
F) welding protection cover: finish build vault refractory brick and the heat-insulating granules backfill of vault top by laying bricks or stones after, in described telescopic joint vault top welding steel sealing as protective sleeve, during welding steel, a welding steel on one side so that steel plate free expansion and contraction.
2. dry coke quenching telescopic joint firebrick structure construction technology as claimed in claim 1 is characterized in that, the weighting material in the described dilatation joint (28) is that working temperature is 1260 °, and volume density is 220kg/m
3Ceramic fiber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170740.1A CN102241995B (en) | 2010-05-11 | 2010-05-11 | Dry quenching expansion joint firebrick structure construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170740.1A CN102241995B (en) | 2010-05-11 | 2010-05-11 | Dry quenching expansion joint firebrick structure construction technology |
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| CN102241995A true CN102241995A (en) | 2011-11-16 |
| CN102241995B CN102241995B (en) | 2014-10-01 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103788966A (en) * | 2014-01-28 | 2014-05-14 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature resistant expansion joint for dry quenching |
| CN103965923A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Sealing method for expansion joint of dry quenching furnace |
| CN104004531A (en) * | 2014-06-12 | 2014-08-27 | 鞍钢股份有限公司 | Construction method for expansion joint of dry quenching furnace |
| CN104293362A (en) * | 2013-07-17 | 2015-01-21 | 五冶集团上海有限公司 | On-line pouring method of dry-quenching high-temperature expansion joint |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN107795976A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Lining building structure and building method for inlet flue of coke dry quenching waste heat boiler |
| CN108570329A (en) * | 2018-05-04 | 2018-09-25 | 马鞍山钢铁股份有限公司 | A kind of coke dry quenching furnace high temperature flue refractory masonry structure and its building method |
| CN109827427A (en) * | 2019-03-13 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of inner liner of rotary kiln structure |
| CN110055090A (en) * | 2019-05-27 | 2019-07-26 | 攀钢集团工程技术有限公司 | Ringwall ruggedized construction and reinforcement means in coke dry quenching furnace |
| CN113403091A (en) * | 2021-05-21 | 2021-09-17 | 五冶集团上海有限公司 | Method for online blocking blowby of vault masonry of primary coke dry quenching dust remover |
| CN115235242A (en) * | 2022-07-26 | 2022-10-25 | 山东鲁明新材料有限公司 | Deslagging platform of aluminum smelting double-chamber furnace and molten slag and molten aluminum infiltration preventing method for aluminum smelting |
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| WO2007006962A2 (en) * | 2005-07-12 | 2007-01-18 | Aluminium Pechiney | Chamber setting with improved expansion joints and bricks for making same |
| CN101008553A (en) * | 2006-01-27 | 2007-08-01 | 宝山钢铁股份有限公司 | Inside lining structure of hot-air pipe expansion joint of blast heating furnace |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104293362A (en) * | 2013-07-17 | 2015-01-21 | 五冶集团上海有限公司 | On-line pouring method of dry-quenching high-temperature expansion joint |
| CN103788966A (en) * | 2014-01-28 | 2014-05-14 | 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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| CN104004531B (en) * | 2014-06-12 | 2018-02-27 | 鞍钢股份有限公司 | Construction method for expansion joint of dry quenching furnace |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN107795976A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Lining building structure and building method for inlet flue of coke dry quenching waste heat boiler |
| CN108570329A (en) * | 2018-05-04 | 2018-09-25 | 马鞍山钢铁股份有限公司 | A kind of coke dry quenching furnace high temperature flue refractory masonry structure and its building method |
| CN109827427A (en) * | 2019-03-13 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of inner liner of rotary kiln structure |
| CN109827427B (en) * | 2019-03-13 | 2023-11-21 | 镇江东亚碳素焦化有限公司 | Rotary kiln lining structure |
| CN110055090A (en) * | 2019-05-27 | 2019-07-26 | 攀钢集团工程技术有限公司 | Ringwall ruggedized construction and reinforcement means in coke dry quenching furnace |
| CN113403091A (en) * | 2021-05-21 | 2021-09-17 | 五冶集团上海有限公司 | Method for online blocking blowby of vault masonry of primary coke dry quenching dust remover |
| CN115235242A (en) * | 2022-07-26 | 2022-10-25 | 山东鲁明新材料有限公司 | Deslagging platform of aluminum smelting double-chamber furnace and molten slag and molten aluminum infiltration preventing method for aluminum smelting |
| CN115235242B (en) * | 2022-07-26 | 2023-04-07 | 山东鲁明新材料有限公司 | Method for preventing molten slag and molten aluminum from permeating through deslagging platform of aluminum smelting double-chamber furnace |
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