CN201241077Y - Cleaning type thermal recovery coke oven bridge pipe - Google Patents
Cleaning type thermal recovery coke oven bridge pipe Download PDFInfo
- Publication number
- CN201241077Y CN201241077Y CNU2008200249480U CN200820024948U CN201241077Y CN 201241077 Y CN201241077 Y CN 201241077Y CN U2008200249480 U CNU2008200249480 U CN U2008200249480U CN 200820024948 U CN200820024948 U CN 200820024948U CN 201241077 Y CN201241077 Y CN 201241077Y
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- layer
- coke oven
- bridge pipe
- cleaning type
- bridge tube
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Abstract
The utility model discloses a Cleaning type heat recovery coke oven bridge pipe, which belongs to the field of industrial furnace accessories, and the bridge pipe comprises a shell and an inner liner, and is characterized in that the inner liner comprises a clay brick layer, an aluminum silicate heat-insulating felt layer and an insulating brick layer, wherein, the clay brick layer is positioned on the most inner layer of the bridge pipe, the aluminum silicate heat-insulating felt layer is positioned around the outer surface of the clay brick layer, and the insulating brick layer is positioned between the shell and the aluminum silicate heat-insulating felt layer, and the utility model has advantages of light weight, high temperature resistance and low thermal conductivity compared with the prior art.
Description
Technical field
The utility model relates to a kind of annex of Industrial Stoves, especially a kind of cleaning type gas bridge pipe for thermal recovery coke oven.
Background technology
Bridge tube is the key control position of coke oven production flow of flue gas, use of the inner lining material of bridge tube contains zircon ceramic fiber folded piece more at present, use the high temperature resistant stainless steel anchoring piece to be fixed on the carbon steel shell, the design heat resisting temperature is 1250 ℃, but because not fully burning of part raw gas, through the rising quirk, enter bridge tube, produce secondary combustion, cause the temperature of bridge tube to surpass design temperature, reach 1300 ℃, cause containing zircon ceramic fiber folded piece generation volumetric shrinkage, produce the slit, high-temperature flue gas then burns out the stainless steel anchoring piece by the slit, makes that containing the zircon ceramic folded piece comes off, and causes the carbon steel shell to burn, cause Cryogenic air to be scurried in the bridge tube, thereby reduced the flue-gas temperature that enters boiler, reduced capacity of boiler, and because the leakage of bridge tube causes the suction of coke oven to reduce, thereby the coking time of coke prolongs, and influenced the output of coke.
Summary of the invention
Technical assignment of the present utility model is to provide a kind of cleaning type gas bridge pipe for thermal recovery coke oven at above the deficiencies in the prior art, and this bridge tube has characteristics such as in light weight, high temperature resistant, that heat conduction is low.
The technical scheme that its technical problem that solves the utility model adopts is a cleaning type gas bridge pipe for thermal recovery coke oven, comprise shell and liner, it is characterized in that described liner is made 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.
Afterbody at described bridge tube is provided with vision slit, and purpose is to be used for observing the bridge tube inner case.
Described insulating brick is a pearlite brick.
The utility model compared with prior art has following beneficial effect:
1, thermotolerance height, percent thermal shrinkage is low, and therefore the phenomenon in slit can not take place to produce because of the liner volumetric shrinkage up to more than 1300 ℃ in heat resisting temperature.
2, thermal conductivity is lower, and thermosteresis is few, has guaranteed to enter the flue-gas temperature in the boiler, has improved capacity of boiler.
3, the suction that has kept flue gas in the coke oven makes the coking time of coke shorten, and has improved the output of coke.
4, inner lining material is selected the light-weight lagging material for use, thereby greatly reduces the overall weight of bridge tube, has reduced the load-carrying load of furnace stay.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with Figure of description the utility model is done following detailed description.
As shown in the figure, cleaning type gas bridge pipe for thermal recovery coke oven, comprise shell 1 and liner, liner is made of undercloak 2, the heat insulation carpet veneer 3 of pure aluminium silicate and pearlite brick layer 4, wherein undercloak 2 is positioned at the innermost layer of bridge tube 1, for preventing high-temperature flue gas blowby from brickwork joint, clay brick adopts the with groove shape; In order to increase the stability of bridge tube, use T-shaped clay brick to build by laying bricks or stones in the middle part of undercloak 2, used dome brick to build by laying bricks or stones at an upper portion thereof; The heat insulation carpet veneer 3 of pure aluminium silicate is positioned at around the appearance of undercloak 2, and pearlite brick layer 4 is between shell 1 and the heat insulation carpet veneer 3 of pure aluminium silicate.Observe the situation of bridge tube inside for convenience, be provided with vision slit at the afterbody of bridge tube.
Claims (3)
1, cleaning type gas bridge pipe for thermal recovery coke oven, comprise shell and liner, it is characterized in that described liner is made 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.
2, bridge tube according to claim 1 is characterized in that being provided with vision slit at the afterbody of described bridge tube.
3, bridge tube according to claim 1 is characterized in that described insulating brick is a pearlite brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200249480U CN201241077Y (en) | 2008-07-09 | 2008-07-09 | Cleaning type thermal recovery coke oven bridge pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200249480U CN201241077Y (en) | 2008-07-09 | 2008-07-09 | Cleaning type thermal recovery coke oven bridge pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241077Y true CN201241077Y (en) | 2009-05-20 |
Family
ID=40714371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200249480U Expired - Fee Related CN201241077Y (en) | 2008-07-09 | 2008-07-09 | Cleaning type thermal recovery coke oven bridge pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241077Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338203A (en) * | 2008-07-09 | 2009-01-07 | 山东日照焦电有限公司 | Cleaning type gas bridge pipe for thermal recovery coke oven |
-
2008
- 2008-07-09 CN CNU2008200249480U patent/CN201241077Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338203A (en) * | 2008-07-09 | 2009-01-07 | 山东日照焦电有限公司 | Cleaning type gas bridge pipe for thermal recovery coke oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20170709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |