CN215176937U - Lining structure of inlet area flue of coke dry quenching waste heat boiler - Google Patents
Lining structure of inlet area flue of coke dry quenching waste heat boiler Download PDFInfo
- Publication number
- CN215176937U CN215176937U CN202121153170.5U CN202121153170U CN215176937U CN 215176937 U CN215176937 U CN 215176937U CN 202121153170 U CN202121153170 U CN 202121153170U CN 215176937 U CN215176937 U CN 215176937U
- Authority
- CN
- China
- Prior art keywords
- heat boiler
- inlet area
- dry quenching
- flue
- waste heat
- 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.)
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- 238000010791 quenching Methods 0.000 title claims abstract description 34
- 230000000171 quenching effect Effects 0.000 title claims abstract description 34
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- 239000000571 coke Substances 0.000 title claims abstract description 14
- 239000011449 brick Substances 0.000 claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003546 flue gas Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model provides a dry coke quenching exhaust-heat boiler inlet area flue lining structure, include: the vault comprises a vault body, side walls and a bottom lining, wherein the vault body comprises a refractory brick masonry layer, a heat insulation layer and a heat insulation layer from inside to outside; and on the side close to the waste heat boiler, refractory bricks on the upper inner wall surface of the refractory brick masonry layer protrude inwards along the radial direction to form a brick wall for shielding a water cooling pipe on the top of the waste heat boiler from being directly washed by high-temperature smoke. This dry quenching exhaust-heat boiler inlet area flue lining structure can effectively hinder in the flue gas burnt powder and air current direct washout boiler top water-cooled tube, solves the easy problem of damaging of boiler top water-cooled tube, improve equipment operating stability.
Description
Technical Field
The utility model relates to a dry coke quenching technical field especially relates to a dry coke quenching exhaust-heat boiler inlet area flue lining structure.
Background
The dry quenching boiler is equipment for generating power by utilizing heat recovered in a dry quenching coke cooling project, has obvious economic benefit and social benefit, and is widely popularized and developed in the industry at present.
The inlet structure of the dry quenching boiler is positioned between the primary dust remover and the boiler and is an important connecting device. The traditional dry quenching boiler inlet is formed by compositely building refractory bricks and castable, and the middle area of the arch crown is built into an arc crown by wedge-shaped bricks. As coke powder and air flow in the inlet area of the boiler are washed, the water cooling pipe at the top of the dry quenching boiler is often damaged, and unnecessary shutdown maintenance is caused.
How to improve the structural design of the inlet of the dry quenching boiler so as to improve and improve the operation stability of the equipment is a key problem at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue lining structure in dry quenching exhaust-heat boiler inlet area can effectively block flue gas and burnt powder and wash away the direct of boiler top water-cooled tube.
Specifically, the utility model adopts the following technical scheme:
a dry quenching exhaust heat boiler inlet area flue liner structure, comprising: the vault comprises a vault body, side walls and a bottom lining, wherein the vault body comprises a refractory brick masonry layer, a heat insulation layer and a heat insulation layer from inside to outside; and on the side close to the waste heat boiler, refractory bricks on the upper inner wall surface of the refractory brick masonry layer protrude inwards along the radial direction to form a brick wall for shielding a water cooling pipe on the top of the waste heat boiler from being directly washed by high-temperature smoke.
Preferably, in the flue lining structure at the inlet area of the dry quenching waste heat boiler, the length of the refractory bricks protruding inwards in the radial direction is gradually increased in the smoke advancing direction.
Preferably, in the flue lining structure at the inlet area of the coke dry quenching waste heat boiler, the lower end of the brick wall is horizontal on the cross section perpendicular to the flue gas advancing direction.
Preferably, in the flue lining structure at the inlet area of the dry quenching waste heat boiler, the refractory brick masonry layer is made of high-alumina refractory bricks.
Preferably, in the flue lining structure at the inlet area of the coke dry quenching waste heat boiler, the side wall comprises an insulating layer and a heat insulating layer from inside to outside.
Preferably, in the flue lining structure at the inlet area of the coke dry quenching waste heat boiler, the bottom lining comprises an insulating layer and a heat insulating layer from inside to outside.
Preferably, in the flue lining structure at the inlet area of the coke dry quenching waste heat boiler, any one of the insulating layers is made of a clay castable.
Preferably, in the flue lining structure at the inlet area of the coke dry quenching waste heat boiler, any one of the heat insulating layers is made of a ceramic fiber blanket.
The utility model provides a flue lining structure in dry coke quenching exhaust-heat boiler inlet region district through setting up at the vault middle part and sheltering from the formula and being able to bear or endure firebrick wall structure, can effectively obstruct burnt powder and air current direct scouring boiler top water-cooled tube in the flue gas, solves the easy problem of damaging of boiler top water-cooled tube, improve equipment operating stability.
Drawings
Fig. 1 is a front view showing a flue lining structure of an inlet area of a dry quenching waste heat boiler of embodiment 1; wherein, 1-heat insulation layer, 2-heat insulation layer, 3-anchoring structure, 4-firebrick masonry layer and 5-brickwork.
Fig. 2 is a main part sectional view relating to a flue liner structure of an inlet area of a dry quenching waste heat boiler of embodiment 1 and showing a section a-a in fig. 1; the heat insulation layer is composed of a heat insulation layer 1, a heat insulation layer 2, an anchoring structure 3, a refractory brick masonry layer 4, a brick wall 5 and a water cooling pipe 6.
Fig. 3 is a plan view showing the development of the vault of the refractory brick masonry in the flue lining structure of the inlet area of the dry quenching waste heat boiler of example 1.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", and the like indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the following examples, the processes are conventional unless otherwise specified, and the starting materials are commercially available from the public unless otherwise specified.
Example 1
A flue lining structure at an inlet area of a dry quenching waste heat boiler, as shown in fig. 1, comprising: the heat-insulation building comprises a vault, side walls and a bottom lining, wherein the vault comprises a refractory brick masonry layer 4, a heat-insulation layer 2 and a heat-insulation layer 1 from inside to outside; the side wall comprises a heat insulation layer and a heat insulation layer from inside to outside; the bottom lining comprises a heat-insulating layer and a heat-insulating layer from inside to outside. The lining structure is connected with the furnace shell through the embedded heat preservation layer and the anchoring structure 3 in the heat insulation layer.
Wherein the refractory brick masonry layer 4 is made of high-alumina refractory bricks; the material of any heat-insulating layer is clay castable; the material of any heat insulation layer is a ceramic fiber blanket; the anchoring structure 3 is made of a metal anchoring piece.
As shown in fig. 2 (partially refer to fig. 1 and fig. 3), on the side close to the waste heat boiler, the refractory bricks on the upper inner wall surface of the refractory brick masonry layer 4 protrude inwards in the radial direction to form an inversely-hung brick wall 5, which can effectively prevent coke powder in flue gas and airflow from directly flushing a water-cooling pipe 6 on the top of the boiler;
furthermore, the length of the refractory bricks protruding inwards along the radial direction is gradually increased in the advancing direction of the flue gas, and the lower ends of the formed brick walls 5 are horizontal on the section perpendicular to the advancing direction of the flue gas, so that the turbulent flow influence of the brick walls 5 on the air flow in the flue gas can be effectively weakened.
Although the invention has been described in detail in the foregoing by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that certain modifications and improvements may be made thereto based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A dry quenching exhaust-heat boiler inlet area flue lining structure, its characterized in that includes: the vault comprises a vault body, side walls and a bottom lining, wherein the vault body comprises a refractory brick masonry layer, a heat insulation layer and a heat insulation layer from inside to outside; and on the side close to the waste heat boiler, refractory bricks on the upper inner wall surface of the refractory brick masonry layer protrude inwards along the radial direction to form a brick wall for shielding a water cooling pipe on the top of the waste heat boiler from being directly washed by high-temperature smoke.
2. The dry quenching exhaust heat boiler inlet area flue liner structure of claim 1, wherein the length of the refractory bricks protruding radially inward increases gradually in the flue gas advancing direction.
3. The dry quenching exhaust heat boiler inlet area flue lining structure of claim 1 or 2, wherein the lower end of the brick wall is horizontal in a cross section perpendicular to the flue gas advancing direction.
4. The structure of the flue lining at the inlet area of the dry quenching waste heat boiler as claimed in claim 1 or 2, wherein the refractory brick masonry is made of high alumina refractory bricks.
5. The dry quenching exhaust heat boiler inlet area flue lining structure of claim 1 or 2, wherein the side walls comprise from inside to outside an insulating layer and a thermal insulating layer.
6. The dry quenching exhaust heat boiler inlet area flue lining structure of claim 1 or 2, wherein the bottom lining comprises from inside to outside an insulation layer and a thermal insulation layer.
7. The structure of the flue lining at the inlet area of the coke dry quenching waste heat boiler as claimed in claim 1 or 2, wherein the material of any insulating layer is clay castable.
8. The structure of the flue lining at the inlet area of the coke dry quenching waste heat boiler as claimed in claim 1 or 2, wherein the material of any of the thermal insulating layers is ceramic fiber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121153170.5U CN215176937U (en) | 2021-05-24 | 2021-05-24 | Lining structure of inlet area flue of coke dry quenching waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121153170.5U CN215176937U (en) | 2021-05-24 | 2021-05-24 | Lining structure of inlet area flue of coke dry quenching waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215176937U true CN215176937U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121153170.5U Active CN215176937U (en) | 2021-05-24 | 2021-05-24 | Lining structure of inlet area flue of coke dry quenching waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215176937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183256A (en) * | 2022-06-24 | 2022-10-14 | 北京巴布科克·威尔科克斯有限公司 | Special-shaped high-temperature flue heat preservation device and method in coke dry quenching waste heat boiler system |
-
2021
- 2021-05-24 CN CN202121153170.5U patent/CN215176937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183256A (en) * | 2022-06-24 | 2022-10-14 | 北京巴布科克·威尔科克斯有限公司 | Special-shaped high-temperature flue heat preservation device and method in coke dry quenching waste heat boiler system |
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