CN204787858U - Hot stove high temperature flue gas in ore deposit contact tube that stretches out and draws back - Google Patents
Hot stove high temperature flue gas in ore deposit contact tube that stretches out and draws back Download PDFInfo
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- CN204787858U CN204787858U CN201520274578.6U CN201520274578U CN204787858U CN 204787858 U CN204787858 U CN 204787858U CN 201520274578 U CN201520274578 U CN 201520274578U CN 204787858 U CN204787858 U CN 204787858U
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- brick
- retractable
- pipeline
- flue gas
- temperature flue
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Abstract
The utility model discloses a hot stove high temperature flue gas in ore deposit contact tube that stretches out and draws back, including the tube built down flexible brick and last flexible brick in the tube by laying bricks or stones, the setting is detained with the circular bead mutually to flexible brick of this time and last flexible brick, and it has flexible stopping to pack in the gap of knot mutually of flexible brick and last flexible brick under, the pipeline brick has then been built by laying bricks or stones to flexible brick building on pipeline brick down on the brick that upward stretches out and draws back down. Down pipeline brick, flexible brick, last flexible brick and go up the pipeline brick and be the mullite baked brick down. The hot extension of pipeline can not only effectively be eliminated to the flexible contact tube of flue gas, has good thermal insulation properties in addition, is applicable to the steel stack of industrial furnace such as the hot stove in ore deposit, among slope pipeline and the vertical pipeline.
Description
Technical field
The utility model relates to mineral heating furnace flue waste heat recycling system, and the structure particularly relating to mineral hot furnace high-temperature flue gas delivery line is improved.
Background technology
Mineral hot furnace can produce a large amount of high-temperature flue gas when producing, and the heat energy that flue gas is taken away is equivalent to input 40%-50% of the whole heat energy of mineral hot furnace, and fume afterheat temperature is higher, belongs to high-grade waste heat.Mineral hot furnace bootstrap system is then utilize residual heat boiler for exchanging heat to reclaim the fume afterheat discharged in mineral hot furnace production process, produces superheated steam and pushing turbine generating.Not only cost of electricity-generating is low for it, good in economic efficiency, and is conducive to ecological environmental protection.
Mineral hot furnace afterheat generating system collects heat from the high temperature petticoat pipe of mineral hot furnace stokehold, after the high-temperature flue gas that petticoat pipe is collected being directed at flue gas thermal-collecting tube by high-temperature flue gas delivery line, is delivered to gas chamber or waste heat boiler generates electricity by fume pipe.High-temperature flue gas delivery line is between stokehold petticoat pipe and flue gas thermal-collecting tube, and flue gas delivery line not only will bear the effect of high-temperature flue gas and thermal-flame, and its position and length dimension are also subject to the restriction of petticoat pipe and thermal-collecting tube.Existing mineral hot furnace high-temperature flue gas delivery line structure directly becomes refractory insulating layer with heavy castable refractory cast-in-site in the steel pipe with bellow-type expansion joint.High-temperature flue gas in pipeline can make its axial elongation because expanding with heat and contract with cold and cause larger thermal stress and axial pushing force, the existence of this thermal stress and axial pushing force not only easily makes the castable heat-insulation layer of delivery line self occur crackle and peel off, even cave in, but also meeting extrusion damage stokehold petticoat pipe and high-temperature heat-collection pipe, make petticoat pipe and high-temperature heat-collection pipe occur distortion or leak.Therefore existing high-temperature flue gas delivery line often leaks out seriously, forms the excessive leakage of high-temperature flue gas, directly affects the thermal efficiency and the service life of mineral hot furnace bootstrap system.Simultaneously also to there is thermal conductivity factor high for castable heat-insulation layer, and heat insulating effect is undesirable, and heat transfer loss is large; Casting and constructing trouble, long in time limit, difficult quality guarantee.
Utility model content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of excellent mineral hot furnace high-temperature flue gas of the hot elongation of pipeline, thermal and insulating performance of effectively eliminating and stretches delivery line.
In order to solve the problems of the technologies described above, mineral hot furnace high-temperature flue gas of the present utility model stretches delivery line, comprise shell, lower retractable brick and upper retractable brick has been built by laying bricks or stones in described shell, this lower retractable brick and upper retractable brick to interlock setting with shoulder, in the gap that interlocks of lower retractable brick and upper retractable brick, be filled with flexible inserts; Described lower retractable brick is built by laying bricks or stones on lower pipeline brick, and upper retractable brick has then built pipeline brick by laying bricks or stones.
After adopting said structure, owing to building the upper retractable brick of the lower retractable brick that mutual hitch is arranged in shell by laying bricks or stones, to interlock between upper and lower retractable brick and the opposite joint formed compensates the hot dilatation of delivery line absorbing and produce because of high-temperature flue gas and thermal-flame effect well, thus thoroughly avoid tube wall stress and pipeline pushing force to the destruction of delivery line, stokehold petticoat pipe and flue gas thermal-collecting tube.Again owing to also having built upper and lower pipeline brick by laying bricks or stones in the above-mentioned upper and lower both sides of upper and lower retractable brick, these prefabricated fired bricks not only can adopt the low flame-proof thermal insulation material of thermal conductivity factor to sinter and form, there is better heat preservation and insulation, and construction quality is stablized, short construction period.
Further embodiment of the present utility model, described shell and lower pipeline brick, lower retractable brick, on retractable brick and between pipeline brick place mat have back boxing thermal insulation layer.Building place mat back boxing thermal insulation layer between brick and shell by laying bricks or stones, heat insulation and preservation effect is good, more can effectively stop heat energy outwards to transmit lost.
Preferred embodiment of the present utility model, described lower pipeline brick, lower retractable brick, upper retractable brick and upper pipeline brick are mullite fired brick.The thermal conductivity factor of mullite fired brick is only 15% of heavy cast, and thermal conductivity factor is low, has stable high-temperature performance, and effectively can reduce heat energy loss.
Further embodiment of the present utility model, described lower retractable brick is provided with shoulder folding face, and described upper retractable brick is also provided with shoulder folding face, and this two circular bead surface is towards relatively, and lower retractable brick and upper retractable brick to interlock setting with shoulder folding face.With the setting that interlocks towards relative shoulder folding face, be convenient to the telescopic moving of retractable brick, and structure is simple, good heat-insulation effect.
Further embodiment of the present utility model, described upper retractable brick is supported on retractable brick supporting plate, and this retractable brick supporting plate is fixedly connected on the inwall of shell.Connection fagging is fixedly connected with between described inner wall of tube shell and retractable brick supporting plate.This structure energy firm stable ground supports fixing upper pipeline brick and upper retractable brick.
Preferred embodiment of the present utility model, what described upper pipeline brick was relative build by laying bricks or stones plane is respectively arranged with insulation groove and insulation convex tendon; What described lower pipeline brick was relative build by laying bricks or stones plane is also respectively arranged with insulation groove and insulation convex tendon.The insulation convex tendon of mutual joggle and insulation groove, make brick body engage closely, strong in conjunction with attachment force.
Preferred embodiment of the present utility model, described shell is the steel pipe with bellows piece.Bellows can eliminate the axial elongation of shell, avoids the generation of pipeline axial thermal stress.
Accompanying drawing explanation
Structure Figure and detailed description of the invention are described further the utility model mineral hot furnace high-temperature flue gas delivery line that stretches below.
Fig. 1 is that the utility model mineral hot furnace high-temperature flue gas stretches the cross-sectional view of a kind of detailed description of the invention of delivery line;
Fig. 2 is the plan structure schematic diagram of Fig. 1 illustrated embodiment;
Fig. 3 is upper retractable brick supporting structure schematic diagram in Fig. 1 illustrated embodiment;
Fig. 4 be in Fig. 1 illustrated embodiment upper retractable brick face structural representation;
Fig. 5 is the plan structure schematic diagram of upper retractable brick in Fig. 1 illustrated embodiment;
Fig. 6 be in Fig. 1 illustrated embodiment lower retractable brick face structural representation;
Fig. 7 is the plan structure schematic diagram of lower retractable brick in Fig. 1 illustrated embodiment;
Fig. 8 be in Fig. 1 illustrated embodiment lower pipeline brick face structural representation;
Fig. 9 is the left TV structure schematic diagram of lower pipeline brick in Fig. 1 illustrated embodiment.
In figure, 1-lower pipeline brick, 2-lower retractable brick, 3-flexible inserts, 4-retractable brick supporting plate, 5-upper retractable brick, 6-back boxing thermal insulation layer, 7-shell, 8-upper pipeline brick, 9-connection fagging, 10-insulation groove, 11-insulation convex tendon.
Detailed description of the invention
Stretch in delivery line at the mineral hot furnace high-temperature flue gas shown in Fig. 1, Fig. 2, the main body of shell 7 is rolled by steel plate and forms, and shell 7 also comprises the bellows segment (not shown) with flexible ripple, and this bellows segment is in order to compensate and to eliminate the axial elongation of shell.Have back boxing thermal insulation layer 6 at the inwall place mat of shell 7, this back boxing thermal insulation layer 6 adopts silicic acid ceramic fiber blanket, can certainly be containing flame-proof thermal insulation materials such as zirconium fibers.Retractable brick 2 under back boxing thermal insulation layer 6 has built a circle by laying bricks or stones along shell 7 circumference, has circumferentially also built retractable brick 5 on a circle by laying bricks or stones in the shell 7 above lower retractable brick 2.Lower retractable brick 2 and upper retractable brick 5 are arranged with the mutual hitch in its shoulder folding face, this setting that interlocks makes to form radial gap and axial slits between lower retractable brick 2 and upper retractable brick 5, this gap is in order to compensate and to eliminate the axial elongation of pipeline brick, be filled with between above-mentioned radial gap and axial slits and can be compressed or the flexible inserts 3 of resilience, this flexible inserts 3 adopts ceramic fiber blanket material, also can be other conventional thermal insulation fire-resistant fibrous material.Upper retractable brick 5 is supported on retractable brick supporting plate 4 by the shoulder on it, and this retractable brick supporting plate 4 radially level is fixedly connected on the inwall of shell 7.Lower retractable brick 2 is built by laying bricks or stones on lower pipeline brick 1, and upper retractable brick 5 has then built pipeline brick 8 by laying bricks or stones.Adjacent upper pipeline brick 8 and adjacent lower retractable brick 2 are with its insulation groove 10 and insulation convex tendon 11 joggle mutually.Upper pipeline brick 8, upper retractable brick 5, lower retractable brick 2 and lower pipeline brick 1 are mullite fired brick.
As shown in Figure 3, with the round plate of through hole centered by retractable brick supporting plate 4, this round plate is fixedly welded on shell 7 by the connection fagging 9 of some vertical settings, to make retractable brick supporting plate 4 can hold in the palm the weight of holding retractable brick 5 and upper pipeline brick 8 reliable and stablely.
As shown in Figure 4, Figure 5, upper retractable brick 5 is a special shaped brick, and upper retractable brick 5 is provided with perpendicular type shoulder folding face, and it overlooks direction is isosceles trapezoidal structure, so that circle is built in shell 7.As shown in Figure 6, Figure 7.Lower retractable brick 2 is also a special shaped brick, and lower retractable brick 2 is also provided with perpendicular type shoulder folding face, and it overlooks direction equally in isosceles trapezoid.The shoulder folding of upper retractable brick 5 and lower retractable brick 2, facing to being oppositely arranged, is built by laying bricks or stones so that both can interlock.
As shown in Figure 8, Figure 9, the plan structure of upper pipeline brick 8 is trapezoidal, and be respectively arranged with insulation convex tendon 11 and insulation groove 10 in relative the building by laying bricks or stones in plane of upper pipeline brick 8, the profile of insulation convex tendon 11 and insulation groove 10 is mutually corresponding, and can engage each other joggle.Upper pipeline brick 8 adopts identical brick shape with lower pipeline brick 1.
Claims (8)
1. a mineral hot furnace high-temperature flue gas stretches delivery line, comprise shell (7), it is characterized in that: in described shell (7), built lower retractable brick (2) and upper retractable brick (5) by laying bricks or stones, this lower retractable brick (2) and upper retractable brick (5) to interlock setting with shoulder, in the gap that interlocks of lower retractable brick (2) and upper retractable brick (5), be filled with flexible inserts (3); Described lower retractable brick (2) is built by laying bricks or stones on lower pipeline brick (1), upper retractable brick (5) has then been built pipeline brick (8) by laying bricks or stones.
2. mineral hot furnace high-temperature flue gas according to claim 1 stretches delivery line, it is characterized in that: described shell (7) and between lower pipeline brick (1), lower retractable brick (2), upper retractable brick (5) and upper pipeline brick (8) place mat have back boxing thermal insulation layer (6).
3. mineral hot furnace high-temperature flue gas according to claim 1 stretches delivery line, it is characterized in that: described lower pipeline brick (1), lower retractable brick (2), upper retractable brick (5) and upper pipeline brick (8) are mullite fired brick.
4. the mineral hot furnace high-temperature flue gas according to claim 1,2 or 3 stretches delivery line, it is characterized in that: described lower retractable brick (2) is provided with shoulder folding face, described upper retractable brick (5) is also provided with shoulder folding face, this two circular bead surface is towards relatively, and lower retractable brick (2) and upper retractable brick (5) to interlock setting with shoulder folding face.
5. the mineral hot furnace high-temperature flue gas according to claim 1,2 or 3 stretches delivery line, and it is characterized in that: described upper retractable brick (5) is supported on retractable brick supporting plate (4), this retractable brick supporting plate (4) is fixedly connected on the inwall of shell (7).
6. mineral hot furnace high-temperature flue gas according to claim 5 stretches delivery line, it is characterized in that: be fixedly connected with between described shell (7) inwall and retractable brick supporting plate (4) and connect fagging (9).
7. mineral hot furnace high-temperature flue gas according to claim 1 stretches delivery line, it is characterized in that: what described upper pipeline brick (8) was relative build by laying bricks or stones plane is respectively arranged with insulation groove (10) and is incubated convex tendon (11); What described lower pipeline brick (1) was relative build by laying bricks or stones plane is also respectively arranged with insulation groove (10) and is incubated convex tendon (11).
8. mineral hot furnace high-temperature flue gas according to claim 1 stretches delivery line, it is characterized in that: described shell (7) is the steel pipe with bellows piece.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274578.6U CN204787858U (en) | 2015-05-01 | 2015-05-01 | Hot stove high temperature flue gas in ore deposit contact tube that stretches out and draws back |
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| CN201520274578.6U CN204787858U (en) | 2015-05-01 | 2015-05-01 | Hot stove high temperature flue gas in ore deposit contact tube that stretches out and draws back |
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| CN204787858U true CN204787858U (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609417A (en) * | 2019-10-28 | 2020-09-01 | 中建材创新科技研究院有限公司 | Hot cigarette pipeline sealing connection structure |
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2015
- 2015-05-01 CN CN201520274578.6U patent/CN204787858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609417A (en) * | 2019-10-28 | 2020-09-01 | 中建材创新科技研究院有限公司 | Hot cigarette pipeline sealing connection structure |
| CN111609417B (en) * | 2019-10-28 | 2022-09-27 | 中建材创新科技研究院有限公司 | Hot cigarette pipeline sealing connection structure |
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