CN103409573B - Masonry structure of refractory material in hot-blast stove warm-air pipe ripple compensator - Google Patents
Masonry structure of refractory material in hot-blast stove warm-air pipe ripple compensator Download PDFInfo
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Abstract
The invention discloses a masonry structure of a refractory material in a hot-blast stove warm-air pipe ripple compensator and belongs to the technical field of a hot-blast stove in a metallurgy industry. The masonry structure comprises a pipe steel casing, an annular plate, bellows, an expansion joint, a thermal insulation layer, a refractory spraying material, a first heat-insulating brick layer, a second heat-insulating brick layer, a first refractory brick layer, a first heat-insulating brick expansion joint, a second heat-insulating brick expansion joint, a first refractory brick expansion joint, special-shaped refractory bricks and diversion bricks. The masonry structure has the advantages that the diversion bricks can effectively protect a refractory fiber blanket filled in the expansion joints so that it is avoided that the refractory fiber blanket in a warm-air pipe is carried by high-temperature high-pressure air flows in work; under the dual action of the diversion bricks and the hot pressing, the refractory fiber blanket can stably work for a long time, absorb the heat expansion and protect the bellows; the reverse maze expansion joint is arranged in an air flow reverse direction so that the expansion joint enters into the bellows difficultly and multi-protection of the bellows is realized; and interlocking of the refractory bricks, the special-shaped refractory bricks and the diversion bricks improves integral masonry stability so that the bellows can stably work for a long time.
Description
Technical field
The invention belongs to metallurgy industry hotblast stove technical field, a kind of masonry construction of hot air furnace hot air pipeline FlexbleJoint been provided with internal refractories is particularly provided, be applicable to the hotblast stove that in iron-smelting process, blast furnace ironmaking and fused reduction iron-smelting are used.Also can be used for other need to be heated to gaseous medium in 1000 DEG C of above industrial technology fields.
Background technology
In blast furnace ironmaking, by existing nearly two one-hundred-year histories of hotblast stove heat blowing, after heating, wind-warm syndrome only has 149 DEG C at first.Along with the continuous progress of technology, wind-warm syndrome is the highest has at present reached 1350 DEG C.Wind-warm syndrome improves, and can significantly reduce coke ratio, saves coke, improves furnace processor, also can make full use of low-calorie blast furnace gas, improves thermo-efficiency, reduces coal gas diffusion, save energy, protection of the environment.
The design objective of pipeline of hot air furnace system is " low-stress, without overheated ", and along with the improving constantly of hot blast temperature, some problems also come out gradually, and being exactly comparatively typically that hot air duct box hat is overheated, rubescent even burns.
Hot air duct inside generally can be built multiple layer refractory by laying bricks or stones, comprises amorphous refractory, insulating brick, refractory brick etc., guarantees that the working temperature of box hat is below 150 DEG C.Box hat can produce thermal expansion under this working temperature, if thermal expansion can not rationally effectively discharge, huge thermal stresses is enough to piping to damage, and affects the normal production of blast furnace.For this reason, FlexbleJoint is able to widespread use in the tubing system (not being hot air duct) of hotblast stove, greatly reduces Stress in Piping system, has realized the target of low-stress.But when realizing low-stress target, hot air duct superheating phenomenon becomes puzzlement production and designer's a new difficult problem, especially FlexbleJoint region, and superheating phenomenon happens occasionally, and has become the weak link of hot air duct.
The overheated rubescent major cause in hot air duct FlexbleJoint region is that structure of refractory design is unreasonable.Loop expansion pipe region structure of refractory is in the past shown in Fig. 1.Comprise pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of the first layer refractory brick, second layer refractory brick 13.The first layer insulating brick and second layer insulating brick, according to different working temperatures, can be clayey insulating brick or High-Alumina insulating brick.When hotblast stove work, hot air duct box hat temperature is between 80 DEG C～150 DEG C, and consequent thermal expansion of pipeline amount is absorbed by corrugated tube 3 and expansion joint 4.Insulating brick and refractory brick are under the drive of box hat and the dual function of self thermal expansion, also can produce thermal walking, the dilatation joint 12 of the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick and the first layer refractory brick is used for absorbing the heat displacement amount of refractory materials, and refractory fiber blanket is filled in the inside.In the loop expansion pipe masonry construction shown in Fig. 1, align with the dilatation joint 10 of the first layer insulating brick in expansion joint 4, block the dilatation joint 10 of the first layer insulating brick with second layer refractory brick 13, the side of second layer refractory brick 13 is dilatation joints 11 of second layer insulating brick, and the dilatation joint 12 of the first layer refractory brick is positioned at the just pipe interior to refractory brick 13.Although this structure utilizes dilatation joint 10,11 and 12 to form the labyrinth of turning back, but in actual use, the hot air duct work initial stage, because pipeline box hat and refractory brick not yet expand and put in place, refractory fiber blanket in dilatation joint is not compacted, and under the washing away of high temperature (>=1200 DEG C) high pressure (>=0.3MPa) air-flow, the refractory fiber blanket that fill dilatation joint 12 the insides is very easily swept away by air-flow, now air-flow directly impacts second layer refractory brick 13, has a strong impact on the stability of masonry construction.Under the washing away of long-time high-temperature high-pressure air flow, once there is crack in second layer refractory brick 13, just between pipe interior and corrugated tube, formed passage, high-temperature gas is easy to just enter thermofin 5, causes that the box hat of corrugated tube and near zone is overheated, rubescently even burns.
For a long time, the rubescent difficult problem that becomes puzzlement Production design personnel of hot air duct loop expansion pipe, affects blast furnace and normally produces, and increases enterprise cost.
Summary of the invention
The object of the present invention is to provide a kind of masonry construction of hot air furnace hot air pipeline FlexbleJoint been provided with internal refractories.By designing a kind of Novel fireproof brick, make the refractory fiber blanket in refractory brick dilatation joint can steady operation, do not swept away by air-flow, design in conjunction with reverse labyrinth dilatation joint, when ensureing pipeline box hat, insulating brick and refractory brick free expansion, high temperature and high pressure gas can not enter in corrugated tube, effectively avoids loop expansion pipe and near box hat overheated rubescent.Refractory brick belt lock catch in addition, ensures to realize interlocking between adjacent refractory brick, increases the stability of overall masonry construction.
The present invention includes pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of the first layer refractory brick, quarl 14, water conservancy diversion brick 15.Pipeline box hat 1 welds with ring flat-plate 2, and ring flat-plate 2 welds with corrugated tube 3, and pipeline box hat 1, in the inner disconnection of corrugated tube 3, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat 1 internal spray fire-proof spray coating 6, fire-proof spray coating 6 disconnects at 4 places, expansion joint, the interior filling refractory fiber blanket in expansion joint 4.Fire-proof spray coating 6 inside are built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, build by laying bricks or stones with mud or oilpaper, the dilatation joint 10 of the first layer insulating brick is set, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick in the airflow downstream at expansion joint 4.The first layer insulating brick 7 inside are built second layer insulating brick 8 by laying bricks or stones, between the first layer insulating brick 7 and second layer insulating brick 8, build by laying bricks or stones with mud or oilpaper, the dilatation joint 11 of second layer insulating brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick, and 11 li of the dilatation joints of second layer insulating brick are filled refractory fiber blankets.Second layer insulating brick 8 inside are built the first layer refractory brick 9 by laying bricks or stones, between second layer insulating brick 8 and the first layer refractory brick 9, build by laying bricks or stones with mud or oilpaper, the dilatation joint 12 of the first layer refractory brick is set in the airflow downstream of the dilatation joint 11 of second layer insulating brick, and 12 li of the dilatation joints of the first layer refractory brick are filled refractory fiber blankets.Such three dilatation joints and expansion joint form stepped labyrinth, and labyrinth arranged direction is from inside to outside contrary with gas flow direction, and barrier gas enters in corrugated tube.Air-flow upstream side at the dilatation joint 12 of the first layer refractory brick is built quarl 14 by laying bricks or stones, quarl 14 is with the first groove 16, form of grooves is semicircle square or trapezoidal, quarl 14 inside are built water conservancy diversion brick 15 by laying bricks or stones, water conservancy diversion brick 15 length cover the dilatation joint 12 of the first layer refractory brick, water conservancy diversion brick 15 is with the second boss 19, and boss form is semicircle square or trapezoidal, and the second boss 19 of water conservancy diversion brick 15 is built the first groove 16 into quarl 14.Water conservancy diversion brick 15 can effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realizes long-term stable operation.The first layer refractory brick 9, quarl 14 and water conservancy diversion brick 15 are provided with latching system in pipe circumference direction, and snap close form is semicircle square or trapezoidal, realizes the interlocking of adjacent refractory brick, increases overall masonry stability.
The present invention also can only use one deck insulating brick, comprise: the dilatation joint of pipeline box hat, ring flat-plate, corrugated tube, expansion joint, thermofin, fire-proof spray coating, the first layer insulating brick, the first layer refractory brick, the first layer insulating brick, the dilatation joint of the first layer refractory brick, quarl, water conservancy diversion brick.
Build quarl and water conservancy diversion brick by laying bricks or stones by the dilatation joint upstream side at the first layer refractory brick; guiding gas flows to; refractory fiber blanket in protection dilatation joint, avoids it to be swept away by high-temperature high-pressure air flow, has fundamentally solved the textural defect that traditional loop expansion pipe masonry construction exists.At the hot air duct work initial stage, although pipeline box hat and refractory brick not yet expand and put in place, the refractory fiber blanket in refractory brick dilatation joint is not compacted, and has the protection of water conservancy diversion brick, and refractory fiber blanket can not swept away by high-temperature high-pressure air flow.Along with the continuous expanded by heating of pipeline box hat and refractory brick, dilatation joint is constantly compacted, finally can reach steady state, now under the dual function of water conservancy diversion brick and the compression of being heated, refractory fiber blanket in dilatation joint can be realized long-term stable operation, avoids loop expansion pipe and near box hat overheated rubescent.
The dilatation joint of the dilatation joint of expansion joint, the first layer insulating brick, the dilatation joint of second layer insulating brick and the first layer refractory brick is contrary with gas flow direction from the outside arranged direction of pipe interior; be that the dilatation joint of the first layer insulating brick is in the airflow downstream at expansion joint; the dilatation joint of second layer insulating brick is in the airflow downstream of the dilatation joint of the first layer insulating brick; the dilatation joint of the first layer refractory brick is in the airflow downstream of the dilatation joint of second layer insulating brick; 4 gap-shapeds become reverse labyrinth to arrange, effectively protect corrugated tube.
Refractory brick, different in nature refractory brick and water conservancy diversion brick have snap close in pipe circumference direction, snap close form is semicircle square or trapezoidal, every brick all has boss in a side, opposite side is fluted, the groove of adjacent two bricks locks mutually with boss, realizes the interlocking of domain brick, greatly improves the resistance to overturning of masonry, even if having indivedual bricks due to cause for quality or build reason cracking by laying bricks or stones or drop, also can not affect the resistance to overturning of masonry.After hot air duct work for some time, under action of gravity, the sedimentation slightly downwards of top brick, pipeline section becomes ellipse, because refractory brick has formed entirety by interlocking, there will not be and subside or big area is fallen brick phenomenon, guarantee hot air duct long-term stable operation.
To sum up, the invention provides the masonry construction in a kind of Novel hot-air pipeline loop expansion pipe region, this structure utilizes water conservancy diversion brick, reverse labyrinth dilatation joint to arrange and refractory brick interlocking structure, is achieved as follows function:
1) water conservancy diversion brick is effectively protected the refractory fiber blanket of filling in dilatation joint, avoids it at hot air duct on period, and the initial stage of especially working is swept away by high-temperature high-pressure air flow;
2) under the dual function of water conservancy diversion brick and the compression of being heated, refractory fiber blanket can be realized long-term stable operation, absorbing thermal expansion, protection corrugated tube;
3) dilatation joint layout in reverse labyrinth is contrary with gas flow, increases the difficulty of its corrugated tube that bleeds, and corrugated tube is formed to multiple protective;
4) snap close of refractory brick, quarl and water conservancy diversion brick has increased the resistance to overturning of masonry, has realized the long-term stable operation of hot air duct.
Brief description of the drawings
Fig. 1 is the masonry construction figure in traditional hot air duct loop expansion pipe region.Wherein, pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of the first layer refractory brick, second layer refractory brick 13.
Fig. 2 is the masonry construction schematic diagram of hot air furnace hot air pipeline FlexbleJoint been provided with internal refractories of the present invention.
Wherein, pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of the first layer refractory brick, quarl 14, water conservancy diversion brick 15.
Fig. 3 is the brick shape figure of quarl 14.Wherein, quarl 14, the first grooves 16.
Fig. 4 is that the A of quarl 14 is to view.Wherein, the first boss 17, the second grooves 18.
Fig. 5 is the brick shape figure of water conservancy diversion brick 15.Wherein, water conservancy diversion brick 15, the second boss 19.
Fig. 6 is that the B of water conservancy diversion brick 15 is to view.Wherein, the first boss 17, the second grooves 18.
Embodiment
Embodiment 1.
Fig. 2～Fig. 6 is specific implementation of the present invention.
As shown in Figure 2, the masonry construction in hot air duct loop expansion pipe of the present invention region comprises: pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of the first layer refractory brick, quarl 14, water conservancy diversion brick 15.
From Fig. 3, Fig. 4, quarl 14 is with the first groove 16, and form of grooves is semicircle square or trapezoidal, the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, form of grooves is semicircle square or trapezoidal.
From Fig. 5, Fig. 6, water conservancy diversion brick 15 is with the second boss 19, and boss form is semicircle square or trapezoidal, the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, form of grooves is semicircle square or trapezoidal.
The first layer refractory brick 9 is with the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, and form of grooves is semicircle square or trapezoidal.
Pipeline box hat 1 welds with ring flat-plate 2, and ring flat-plate 2 welds with corrugated tube 3, and pipeline box hat 1, in the inner disconnection of corrugated tube 3, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat internal spray fire-proof spray coating 6, fire-proof spray coating 6 disconnects at 4 places, expansion joint, the interior filling refractory fiber blanket in expansion joint 4.Fire-proof spray coating 6 inside are built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, build by laying bricks or stones with mud or oilpaper, the dilatation joint 10 of the first layer insulating brick is set, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick in the airflow downstream at expansion joint 4.The first layer insulating brick 7 inside are built second layer insulating brick 8 by laying bricks or stones, between the first layer insulating brick 7 and second layer insulating brick 8, build by laying bricks or stones with mud or oilpaper, the dilatation joint 11 of second layer insulating brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick, and 11 li of the dilatation joints of second layer insulating brick are filled refractory fiber blankets.Second layer insulating brick 8 inside are built the first layer refractory brick 9 by laying bricks or stones, between second layer insulating brick 8 and the first layer refractory brick 9, build by laying bricks or stones with mud or oilpaper, the dilatation joint 12 of the first layer refractory brick is set in the airflow downstream of the dilatation joint 11 of second layer insulating brick, and 12 li of the dilatation joints of the first layer refractory brick are filled refractory fiber blankets.Like this, expansion joint 4, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick and the dilatation joint 12 of the first layer refractory brick are contrary with gas flow direction from the outside arranged direction of pipe interior, form reverse labyrinth and arrange, the barrier gas corrugated tube that bleeds.
The air-flow upstream side of the dilatation joint 12 of the first layer refractory brick is built quarl 14 by laying bricks or stones, quarl 14 is with the first groove 16, form of grooves is semicircle square or trapezoidal, quarl 14 inside are built water conservancy diversion brick 15 by laying bricks or stones, water conservancy diversion brick 15 length cover the dilatation joint 12 of the first layer refractory brick, and water conservancy diversion brick 15 is with the second boss 19, and boss form is semicircle square or trapezoidal, the second boss 19 is built into the first groove 16, makes water conservancy diversion brick 15 and quarl 14 be built into one.Utilize water conservancy diversion brick to guide gas flow direction, effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realize long-term stable operation.
The first layer refractory brick 9, quarl 14 and water conservancy diversion brick 15 are all with the first boss 17 and the second groove 18, the form of boss and groove is semicircle square or trapezoidal, while building by laying bricks or stones, adjacent refractory brick 9 or quarl 14 or water conservancy diversion brick 15 utilize the first boss 17 to lock mutually with the second groove 18, increase the resistance to overturning of masonry, realize the long-term stable operation of hot air duct.
Embodiment 2.
In this enforcement, masonry construction and the Fig. 2 in hot air duct loop expansion pipe region are similar.When the gas medium temperature in hot air duct is lower, only build 1 layer of insulating brick by laying bricks or stones while getting final product, can adopt this embodiment.
Now the masonry construction in hot air duct loop expansion pipe of the present invention region comprises: pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, the first layer refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 12 of the first layer refractory brick, quarl 14, water conservancy diversion brick 15.
Quarl 14 is with the first groove 16, and form of grooves is semicircle square or trapezoidal, the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, form of grooves is semicircle square or trapezoidal.
Water conservancy diversion brick 15 is with the second boss 19, and boss form is semicircle square or trapezoidal, the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, form of grooves is semicircle square or trapezoidal.
The first layer refractory brick 9 is with the first boss 17, and boss form is semicircle square or trapezoidal, the second groove 18, and form of grooves is semicircle square or trapezoidal.
Pipeline box hat 1 welds with ring flat-plate 2, and ring flat-plate 2 welds with corrugated tube 3, and pipeline box hat 1, in the inner disconnection of corrugated tube 3, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat internal spray fire-proof spray coating 6, fire-proof spray coating 6 disconnects at 4 places, expansion joint, the interior filling refractory fiber blanket in expansion joint 4.Fire-proof spray coating 6 inside are built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, build by laying bricks or stones with mud or oilpaper, the dilatation joint 10 of the first layer insulating brick is set, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick in the airflow downstream at expansion joint 4.The first layer insulating brick 7 inside are built the first layer refractory brick 9 by laying bricks or stones, between the first layer insulating brick 7 and the first layer refractory brick 9, build by laying bricks or stones with mud or oilpaper, and the dilatation joint 12 of the first layer refractory brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick.12 li of filling refractory fiber blankets of dilatation joint of the first layer refractory brick.Like this, expansion joint 4, the dilatation joint 10 of the first layer insulating brick and the dilatation joint 12 of the first layer refractory brick are contrary with gas flow direction from the outside arranged direction of pipe interior, form reverse labyrinth and arrange, the barrier gas corrugated tube that bleeds.
The air-flow upstream side of the dilatation joint 12 of the first layer refractory brick is built quarl 14 by laying bricks or stones, quarl 14 is with the first groove 16, form of grooves is semicircle square or trapezoidal, quarl 14 inside are built water conservancy diversion brick 15 by laying bricks or stones, water conservancy diversion brick 15 length cover the dilatation joint 12 of the first layer refractory brick, and water conservancy diversion brick 15 is with the second boss 19, and boss form is semicircle square or trapezoidal, the second boss 19 is built into the first groove 16, makes water conservancy diversion brick 15 and quarl 14 be built into one.Utilize water conservancy diversion brick to guide gas flow direction, effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realize long-term stable operation.
The first layer refractory brick 9, quarl 14 and water conservancy diversion brick 15 are all with the first boss 17 and the second groove 18, the form of boss and groove is semicircle square or trapezoidal, while building by laying bricks or stones, adjacent the first layer refractory brick 9 or quarl 14 or water conservancy diversion brick 15 utilize the first boss 17 to lock mutually with the second groove 18, increase the resistance to overturning of masonry, realize the long-term stable operation of hot air duct.
The masonry construction in hot air duct loop expansion pipe of the present invention region has multiple embodiments, the accompanying drawing explanation use that only lays down a definition, not limitation of the present invention.Anyly do not depart from mentality of designing of the present invention, the present invention is done to unsubstantiality changes, all still belong to scope of the present invention.
Claims (6)
1. a masonry construction for hot air furnace hot air pipeline FlexbleJoint been provided with internal refractories, is characterized in that, comprises pipeline box hat, ring flat-plate, corrugated tube, expansion joint, thermofin, fire-proof spray coating, the first layer insulating brick, second layer insulating brick, the first layer refractory brick, the dilatation joint of the first layer insulating brick, the dilatation joint of second layer insulating brick, the dilatation joint of the first layer refractory brick, quarl, water conservancy diversion brick; Pipeline box hat (1) and ring flat-plate (2) welding, ring flat-plate (2) and corrugated tube (3) welding, pipeline box hat (1) is in the inner disconnection of corrugated tube (3), form expansion joint (4), filling with insulation material between corrugated tube (3) and pipeline box hat (1), forms thermofin (5); Pipeline box hat (1) internal spray fire-proof spray coating (6), fire-proof spray coating (6) at expansion joint (4) locate to disconnect, fill refractory fiber blanket in expansion joint (4); Fire-proof spray coating (6) inside is built the first layer insulating brick (7) by laying bricks or stones, between fire-proof spray coating (6) and the first layer insulating brick (7), build by laying bricks or stones with mud or oilpaper, at expansion joint, the airflow downstream of (4) arranges the dilatation joint (10) of the first layer insulating brick; The first layer insulating brick (7) inside is built second layer insulating brick (8) by laying bricks or stones, and the dilatation joint (11) of second layer insulating brick is set in the airflow downstream of the dilatation joint (10) of the first layer insulating brick; Second layer insulating brick (8) inside is built the first layer refractory brick (9) by laying bricks or stones, and the dilatation joint (12) of the first layer refractory brick is set in the airflow downstream of the dilatation joint (11) of second layer insulating brick; Air-flow upstream side at the dilatation joint (12) of the first layer refractory brick is built quarl (14) by laying bricks or stones, quarl (14) inside is built water conservancy diversion brick (15) by laying bricks or stones, the first layer refractory brick (9), quarl (14) and water conservancy diversion brick (15) are provided with snap close in pipe circumference direction, snap close form is semicircle square or trapezoidal, realize the interlocking of adjacent refractory brick, increase overall masonry stability.
2. masonry construction according to claim 1, it is characterized in that, the inner refractory fiber blanket of filling of dilatation joint (10) of described the first layer insulating brick, between the first layer insulating brick (7) and second layer insulating brick (8), build by laying bricks or stones with mud or oilpaper, the inner refractory fiber blanket of filling of dilatation joint (11) of second layer insulating brick, between second layer insulating brick (8) and the first layer refractory brick (9), build the inner refractory fiber blanket of filling of dilatation joint (12) of the first layer refractory brick by laying bricks or stones with mud or oilpaper.
3. masonry construction according to claim 1, is characterized in that, described quarl (14) is with the first groove (16), and form of grooves is semicircle square or trapezoidal.
4. masonry construction according to claim 1, it is characterized in that, described water conservancy diversion brick (15) length covers the dilatation joint (12) of the first layer refractory brick, water conservancy diversion brick (15) is with the second boss (19), boss form is semicircle square or trapezoidal, water conservancy diversion brick (15) effectively prevents that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realizes long-term stable operation.
5. masonry construction according to claim 1, it is characterized in that, the first layer refractory brick (9), quarl (14) and water conservancy diversion brick (15) are all with the first boss (17) and the second groove (18), the form of boss and groove is semicircle square or trapezoidal, while building by laying bricks or stones, the first layer refractory brick (9) or quarl (14) or water conservancy diversion brick (15) utilize the first boss (17) to lock mutually with the second groove (18), increase the resistance to overturning of masonry.
6. masonry construction according to claim 1, it is characterized in that, only use one deck insulating brick, comprise: the dilatation joint of pipeline box hat, ring flat-plate, corrugated tube, expansion joint, thermofin, fire-proof spray coating, the first layer insulating brick, the first layer refractory brick, the first layer insulating brick, the dilatation joint of the first layer refractory brick, quarl, water conservancy diversion brick.
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| CN201310357445.0A CN103409573B (en) | 2013-08-16 | 2013-08-16 | Masonry structure of refractory material in hot-blast stove warm-air pipe ripple compensator |
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| CN108570524B (en) * | 2017-03-08 | 2020-04-24 | 广东韶钢松山股份有限公司 | Detection and diagnosis process for refractory material of blast furnace hot blast stove pipeline lining |
| CN114580680B (en) * | 2022-03-29 | 2023-01-06 | 广东韶钢松山股份有限公司 | Maintenance method for external combustion type hot blast stove vault connecting pipe temperature field system |
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|---|---|---|---|---|
| US5383316A (en) * | 1990-10-16 | 1995-01-24 | Pyropower Corporation | Loop seal expansion joint |
| 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 |
| CN201021454Y (en) * | 2007-01-16 | 2008-02-13 | 中冶京诚工程技术有限公司 | Joint pipe |
| CN201875348U (en) * | 2010-07-23 | 2011-06-22 | 陈晓军 | CFB boiler-used high temperature metallic expansion joint |
| CN203411560U (en) * | 2013-08-16 | 2014-01-29 | 北京首钢国际工程技术有限公司 | Construction structure of fireproof material in air heating pipeline ripple compensator of air heating furnace |
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| Title |
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| JP特开2010-242181A 2010.10.28 |
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| CN103409573A (en) | 2013-11-27 |
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