CN203360373U - Clean heat recovery coke oven bridge pipe - Google Patents
Clean heat recovery coke oven bridge pipe Download PDFInfo
- Publication number
- CN203360373U CN203360373U CN2013203935806U CN201320393580U CN203360373U CN 203360373 U CN203360373 U CN 203360373U CN 2013203935806 U CN2013203935806 U CN 2013203935806U CN 201320393580 U CN201320393580 U CN 201320393580U CN 203360373 U CN203360373 U CN 203360373U
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- China
- Prior art keywords
- coke oven
- interface
- layer
- stones
- bridge pipe
- 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.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Coke Industry (AREA)
Abstract
The utility model discloses a clean heat recovery coke oven bridge pipe which comprises a pipeline wall, wherein the pipeline wall is coated with a pipeline housing; a gas header interface and a coke oven flue interface are formed in the pipeline wall; a plane where the gas header interface is located is perpendicular to a plane where the coke oven flue interface is located; the pipeline wall consists of an anti-erosion mullite construction layer and a fireproof thermal insulation layer; and the fireproof thermal insulation layer is positioned between the anti-erosion mullite brick construction layer and the pipeline housing. An intra-pipe channel is defined by the pipeline wall and communicated with the gas header interface and the coke oven flue interface. The anti-erosion mullite brick construction layer is formed by constructing anti-erosion mullite bricks, and the fireproof thermal insulation layer is an alumina silicate fiber carpet. The heat recovery coke oven bridge pipe is reasonable in structure, convenient to construct and low in cost, resists corrosion and thermal shock, and can achieve efficient transmission of coke oven waste heat.
Description
Technical field
The utility model relates to a kind of clean type heat reclamation coke furnace, relates in particular to the bridge tube structure of heat recovery coke oven.
Background technology
Clean type heat recovery coke oven is the reasonably fully burning in pit kiln inside of coke-oven gas, chemical products and some objectionable impuritiess that will produce in process of coking, and the heat that reclaims high-temp waste gas is used for a kind of new Type Coke Oven of generating or other purposes.Heat recovery coke oven especially clean type heat recovery coke oven is owing to not effluxing flue dust in process of coking, pollution-free to atmosphere and water surrounding, and can realize the comprehensive utilization of heat energy, and obtains paying close attention to more and more widely and applying.
Clean type heat recovery coke oven mainly comprises the key components such as coking chamber, combustion chamber and effuser, combustion chamber is positioned at the bottom of coking chamber, high-temp waste gas in coking chamber and combustion chamber is delivered to effuser and gas gathering manifold through the rising quirk on coking furnace shaft, and high-temp waste gas is delivered to waste heat boiler and produced steam-electric power the most at last.Gas bridge pipe for thermal recovery coke oven is the key part that connects carbonizing chamber and effuser, and high-temperature residual heat directly enters effuser through bridge tube, and temperature reaches 1300 ℃-1350 ℃, be the high-order bit of whole heat recovery coke oven temperature, and the heat wave air-flow is anxious, and obnoxious flavour corrodes seriously.
The described bridge tube of Chinese utility model patent (ZL200820024948.0) " cleaning type gas bridge pipe for thermal recovery coke oven " is divided into shell and liner, liner consists of undercloak, the heat insulation carpet veneer of pure aluminium silicate and insulating brick-layer, wherein said undercloak is positioned at the innermost layer of bridge tube, the heat insulation carpet veneer of described pure aluminium silicate is positioned at around the appearance of described undercloak, and described insulating brick-layer is between described shell and the heat insulation carpet veneer of described pure aluminium silicate.Body of wall is thick on the one hand, manufacturing cost is high, construction is complicated for this technology; Clay brick use temperature in innermost layer is the highest on the other hand can only bear 1250 ℃, and heat recovery coke oven is due to the not fully burning of part raw gas, through the rising quirk, enter bridge tube, produce secondary combustion, cause the temperature of bridge tube to reach 1300 ℃-1350 ℃, the clay brick life-time service is yielding to drop, and even more serious is that a large amount of CO, SO are arranged in high-temperature residual heat
2deng obnoxious flavour, with the bridge tube liner, corrode mutually, destroyed liner clay brick internal structure, cause brick body crack, reduce waste heat supply temperature, even burn out the iron plate shell, there is potential safety hazard.
The utility model content
For the existing above-mentioned deficiency of prior art, technical problem to be solved in the utility model is to provide a kind of cleaning type gas bridge pipe for thermal recovery coke oven, and not only cost of manufacture is low for it, constructability, and long service life, can realize the efficient conveying of waste heat of coke oven.
In order to solve the problems of the technologies described above, cleaning type gas bridge pipe for thermal recovery coke oven of the present utility model, comprise duct wall, be coated with conduit enclosure on this duct wall, be provided with effuser interface and coke oven flue interface on duct wall, plane, described effuser interface place is mutually vertical with plane, coke oven flue interface place, and described duct wall builds layer (4) by laying bricks or stones by anti-corrosion mullite brick and refractory insulating layer forms, and this refractory insulating layer is built by laying bricks or stones between layer and conduit enclosure at anti-corrosion mullite brick.
Described duct wall surrounds the pipe interior passageway, and this pipe interior passageway is connected with burnt gas interface and coke oven flue interface.
Described anti-corrosion mullite brick is built layer by laying bricks or stones and is built by laying bricks or stones and formed by anti-corrosion mullite brick, and described refractory insulating layer is alumina silicate fibre blanket.
After adopting said structure, due at cleaning type gas bridge pipe for thermal recovery coke oven
'sin conduit enclosure, be provided with refractory insulating layer and anti-corrosion mullite brick is built layer by laying bricks or stones, two-layer heat insulation thermal insulation layer, not only optimized the structure design of bridge tube, alleviated bridge tube weight and wall thickness, saved construction cost, reduced the laid down cost of bridge tube, and effectively reduced distributing of effuser high-temp waste gas heat energy, and greatly reduce the temperature on bridge tube surface, not only guaranteed taking full advantage of of coke oven high-temperature waste gas heat energy, and improved operating environment, extended the work-ing life of effuser.Again due to described anti-corrosion mullite brick build by laying bricks or stones the layer build by laying bricks or stones and form by anti-erosion mullite vitrified brick, the anti-erosion mullite has stronger anti-harmful gas erosional competency, not only effectively improved effect of heat insulation, physical strength and the thermal shock resistance of effuser have been strengthened, the crackle gap of having avoided rapid heat cycle and mechanical shock to produce and to the destruction of thermofin, and extended work-ing life, reach work-ing life more than 8 years, and the work-ing life of clay brick left and right one year only.Also, because plane, effuser interface place is mutually vertical, rationally distributed with plane, coke oven flue interface place, be conducive to carbonizing chamber and arrange with effuser and be connected, realized the efficient conveying of waste heat of coke oven.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model cleaning type gas bridge pipe for thermal recovery coke oven is described in further detail.
Fig. 1 is that the master of a kind of embodiment of the utility model cleaning type gas bridge pipe for thermal recovery coke oven looks cross-sectional view;
Fig. 2 is the left view of structure shown in Fig. 1;
Fig. 3 is the A-A sectional view of structure shown in Fig. 1.
In figure, 1-effuser interface, 2-effuser flange, 3-duct wall, 4-anti-corrosion mullite brick are built layer, 5-refractory insulating layer, 6-conduit enclosure, 7-coke oven flue flange, 8-coke oven flue interface, 9-pipe interior passageway by laying bricks or stones.
Embodiment
Cleaning type gas bridge pipe for thermal recovery coke oven as shown in Figure 1, Figure 2 and Figure 3, duct wall 3 is built by laying bricks or stones and is surrounded pipe interior passageway 9, is provided with effuser interface 1 and coke oven flue interface 8 on duct wall 3, and effuser interface 1 is connected with coke oven flue interface 8 by pipe interior passageway 9.Be coated with conduit enclosure 6 on the outside wall surface of duct wall 3, this conduit enclosure 6 consists of steel sheet.Be provided with effuser flange 2 around the interface of effuser interface 1, in the interface surrounding of coke oven flue interface 8, also be provided with coke oven flue flange 7, effuser flange 2 and coke oven flue flange 7 are fixedly connected on conduit enclosure 6.
Duct wall 3 builds layer 4 by laying bricks or stones by anti-corrosion mullite brick and refractory insulating layer 5 forms, this refractory insulating layer 5 is built by laying bricks or stones between layer 4 and conduit enclosure 6 at anti-corrosion mullite brick, refractory insulating layer 5 is the alumina silicate fibre blanket packing layer, and refractory insulating layer 5 can also be the aluminum silicate fiber layer or contain zirconium layer of fibers or calcium silicate thermal insulation layer.Anti-corrosion mullite brick is built layer 4 by laying bricks or stones and is consisted of by building by laying bricks or stones anti-erosion mullite vitrified brick, and the raw materials of anti-erosion mullite vitrified brick includes granulated aggregate calcium hexaluminate, andaluzite; Substrate material sillimanite, alumina powder, trichroite, agalmatolite, kaolin, refractory oxide; Whipping agent EPS expanded plastic and/or wood chip; And organic or inorganic wedding agent.After its material is ground to stirring, add granulated aggregate mixed grind in the lump, and add whipping agent and wedding agent to make the mullite brick mixing raw material, mixing raw material is molded into to adobe, adobe becomes surface to be coated with the anti-erosion mullite vitrified brick finished product of fine and close glaze layer through high temperature sintering, fine and close glaze layer can tolerate higher temperature, and smooth fine and close glaze layer also is difficult for adhering to or easily removing the foreign material such as breeze and tar.Fine and close glaze layer more can be blocked in efficient effuser and be harmful to infiltration and the erosion of corrosion high-temp waste gas to the thermal insulation separation thermosphere, thereby makes the thermal insulation separation thermosphere have stable heat insulation effect and longer work-ing life.
Claims (3)
1. a cleaning type gas bridge pipe for thermal recovery coke oven, comprise duct wall (3), be coated with conduit enclosure (6) on this duct wall (3), be provided with effuser interface (1) and coke oven flue interface (8) on duct wall (3), it is characterized in that: described effuser interface (1) plane, place is mutually vertical with coke oven flue interface (8) plane, place, described duct wall (3) builds layer (4) by laying bricks or stones by anti-corrosion mullite brick and refractory insulating layer (5) forms, and this refractory insulating layer (5) is positioned at anti-corrosion mullite brick and builds by laying bricks or stones between layer (4) and conduit enclosure (6).
2. cleaning type gas bridge pipe for thermal recovery coke oven according to claim 1 is characterized in that: described duct wall (3) surrounds pipe interior passageway (9), and this pipe interior passageway (9) is connected with burnt gas interface (1) and coke oven flue interface (8).
3. cleaning type gas bridge pipe for thermal recovery coke oven according to claim 1 is characterized in that: described anti-corrosion mullite brick is built layer (4) by laying bricks or stones and is built by laying bricks or stones and formed by anti-corrosion mullite brick, and described refractory insulating layer (5) is alumina silicate fibre blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203935806U CN203360373U (en) | 2013-07-04 | 2013-07-04 | Clean heat recovery coke oven bridge pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203935806U CN203360373U (en) | 2013-07-04 | 2013-07-04 | Clean heat recovery coke oven bridge pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203360373U true CN203360373U (en) | 2013-12-25 |
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ID=49808165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203935806U Expired - Lifetime CN203360373U (en) | 2013-07-04 | 2013-07-04 | Clean heat recovery coke oven bridge pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203360373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941031A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process |
-
2013
- 2013-07-04 CN CN2013203935806U patent/CN203360373U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941031A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process |
| CN107941031B (en) * | 2017-12-21 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Compact process arrangement method for high-temperature flue gas system of heat recovery coke oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU ZHONGLEI ENERGY SAVING TECHNOLOGY DEVELOPM Free format text: FORMER NAME: DONGTAI ENERGY-SAVING REFRACTORY MATERIAL FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 224213 No. 3 martyrs Road, Dongtai Port Industrial Park, Jiangsu, China Patentee after: JIANGSU ZHONGLEI ENERGY-SAVE SCIENCE AND TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 224213 No. 3 martyrs Road, Dongtai, Jiangsu, Yancheng City Patentee before: Dongtai Energy-Saving Refractory Factory |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |