CN110724539A - Energy-saving coke oven top - Google Patents
Energy-saving coke oven top Download PDFInfo
- Publication number
- CN110724539A CN110724539A CN201911192892.9A CN201911192892A CN110724539A CN 110724539 A CN110724539 A CN 110724539A CN 201911192892 A CN201911192892 A CN 201911192892A CN 110724539 A CN110724539 A CN 110724539A
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- Prior art keywords
- hole
- coke oven
- energy
- insulating
- heat
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- 239000000571 coke Substances 0.000 title claims abstract description 44
- 239000011449 brick Substances 0.000 claims abstract description 35
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011810 insulating material Substances 0.000 claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 230000001174 ascending effect Effects 0.000 claims abstract description 9
- 238000003763 carbonization Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 16
- 239000012774 insulation material Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 239000011819 refractory material Substances 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to the technical field of coke ovens, in particular to an energy-saving coke oven top. The coke oven top is mainly a masonry body composed of refractory bricks, insulating bricks and the like, wherein a coal charging hole (or a smoke guide hole) and an ascending pipe hole are reserved above a carbonization chamber, and a fire observation hole is reserved above a combustion chamber; high-temperature-resistant heat-insulating material coatings are coated among the brick layers of the furnace roof masonry and around the coal charging hole (or the smoke guide hole), the ascending pipe hole or the observation hole. The heat dissipation capacity of the furnace top and the surface temperature of the furnace top are reduced, the investment of equipment such as refractory materials, iron pieces and the like is reduced, and the aims of saving energy, reducing consumption and improving the energy utilization rate are fulfilled.
Description
Technical Field
The invention relates to the technical field of coke ovens, in particular to an energy-saving coke oven top.
Background
The coke oven as main coking equipment has the characteristics of high energy consumption, great pollution and the like. The coke oven belongs to a high-temperature kiln, and the large surface heat dissipation is one of the reasons of high energy consumption. Along with the improvement of national requirements on environmental protection, the problems of energy conservation and consumption reduction of the coke oven are increasingly prominent.
The coke oven generally comprises a regenerator, an inclined channel, a combustion chamber, an oven top and other auxiliary equipment such as a civil engineering foundation, an oven protecting iron piece and the like. The furnace top is arranged above the combustion chamber, and in order to reduce the surface temperature of the furnace top, the furnace top generally adopts insulating bricks with certain thickness. However, the temperature of the combustion chamber is higher and can reach 1300-1400 ℃, and the coal charging holes (the smoke guide holes on the top of the tamping coke oven), the riser holes and the observation holes are more, so that in the actual production process, the heat dissipation capacity of the top of the oven is larger and accounts for about 30 percent of the total heat dissipation capacity of the coke oven, and the temperature of the surface of the top of the oven is higher, thereby seriously affecting the health of workers and the personal safety.
In addition, the roof of the oven must have a certain weight in order to ensure the strength of the walls of the combustion chamber of the coke oven. When the amount of the furnace top insulating bricks is larger, the thickness of the furnace top must be increased to ensure the strength of the furnace wall of the combustion chamber, and the investment of devices such as refractory materials, iron pieces and the like is greatly increased.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the energy-saving coke oven top, which reduces the heat dissipation capacity of the oven top and the surface temperature of the oven top, reduces the equipment investment of refractory materials, iron pieces and the like, and achieves the purposes of saving energy, reducing consumption and improving the energy utilization rate.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy-saving coke oven top is mainly a masonry body composed of refractory bricks, insulating bricks and the like, wherein a coal charging hole (or a smoke guide hole) and a riser hole are reserved above a carbonization chamber, and a fire observation hole is reserved above a combustion chamber; high-temperature-resistant heat-insulating material coatings are coated among the brick layers of the furnace roof masonry and around the coal charging hole (or the smoke guide hole), the ascending pipe hole or the observation hole.
The high-temperature-resistant heat-insulating material coating can be one layer or multiple layers.
The high-temperature resistant heat insulation material coating can be on the surfaces of the furnace top masonry and the hole or in the masonry.
The thickness of the high-temperature resistant heat-insulating material coating is 1-20 mm; the material is a commercial product or a newly developed product, and has the advantages of high temperature resistance, low heat conductivity coefficient and the like.
Before the surfaces of the refractory bricks or the insulating bricks are coated with the high-temperature-resistant heat-insulating materials, a layer of corresponding pretreatment liquid can be coated on the surfaces of the bricks, so that the adhesive force of the coating and the matrix is improved.
Compared with the prior art, the invention has the beneficial effects that:
1) the method of coating high-temperature-resistant heat-insulating material coatings among the brick layers of the furnace top masonry and around the coal charging hole (or smoke guide hole), the ascending pipe hole or the observation hole reduces the heat dissipation capacity and the surface temperature of the furnace top, and is beneficial to the personal safety and the health of workers;
2) the consumption of heating gas can be reduced, the temperature of the furnace top space is improved, and energy conservation and consumption reduction are realized;
3) the temperature of the raw gas can be increased, and the heat efficiency of waste heat recovery of the ascending pipe is improved;
4) the height of the furnace top can be reduced, and the investment of equipment such as refractory materials, iron pieces and the like is greatly reduced;
5) the method is suitable for the newly built coke oven and the reconstruction of the old coke oven, and can realize the purposes of saving energy, reducing consumption and increasing the energy utilization rate.
Drawings
Fig. 1 is a schematic longitudinal sectional view of the inventive stove top.
FIG. 2 is a schematic sectional structure view of the carbonization chamber on the top of the furnace.
Fig. 3 is a schematic sectional view of the topping combustion chamber of the present invention.
In the figure: 1. ascending pipe hole 2, coal charging hole (smoke guide hole) 3, fire observation hole 4, high temperature resistant heat insulation material coating 41, furnace top masonry and hole inner surface heat insulation coating 42, furnace top masonry and masonry interlayer heat insulation coating around hole 5, heat insulation brick 6, refractory brick 7, carbonization chamber 8, combustion chamber
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-3, an energy-saving coke oven top is mainly a masonry composed of refractory bricks 6 and insulating bricks 5, wherein a coal charging hole (or smoke guide hole) 2 and an ascending pipe hole 1 are reserved above a carbonization chamber 7, and a fire observation hole 3 is reserved above a combustion chamber 8; and high-temperature-resistant heat-insulating material coatings 4 are coated among the brick layers of the furnace roof masonry and around the coal charging hole (or smoke guide hole) 2, the ascending pipe hole 1 or the observation hole 3.
The high temperature resistant thermal insulation material coating 4 can be one layer or a plurality of layers. The refractory heat insulating material cladding 4 may be on the interior surface 41 of the furnace roof masonry and the hole or on an interior interlay 42 of the masonry. The thickness of the high-temperature resistant heat insulation material coating 4 is 1-20 mm; the material is a commercial product or a newly developed product, and has the advantages of high temperature resistance, low heat conductivity coefficient and the like.
Before the surfaces of the refractory bricks or the insulating bricks are coated with the high-temperature-resistant heat-insulating materials, a layer of corresponding pretreatment liquid can be coated on the surfaces of the bricks, so that the adhesive force of the coating and the matrix is improved.
The heat insulation material used for forming the high temperature resistant heat insulation material coating 4 of the present invention is commercially available heat insulation paint, or paint with heat insulation performance described in the publication (for example, "a high temperature resistant heat insulation paint" disclosed in chinese patent No. CN106497306A, "a high temperature resistant heat insulation paint" disclosed in chinese patent No. CN 103881426A, "a high temperature resistant heat insulation paint" disclosed in chinese patent No. CN 106519962A, and "a high temperature resistant heat insulation paint" disclosed in chinese patent No. CN 106336797A), and the requirements for its performance are that it can be used at high temperature for a long time, and has strong adhesion and good heat insulation effect.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ example 1 ]
In the embodiment, the energy-saving method for the coke oven top is applied to a newly-built top-mounted coke oven, as shown in fig. 1-3, when the coke oven top is built, after the surfaces of refractory bricks are cleaned, a high-temperature-resistant heat-insulating material layer 4 with the thickness of 10mm is coated between the refractory bricks and heat-insulating bricks and between refractory brick layers around a coal charging hole, a riser hole and a fire observation hole of the coke oven top, and after the coating is dried completely, other building bodies on the coke oven top are built continuously.
Compared with the conventional furnace top structure, the energy-saving method for the furnace top of the coke oven can reduce the heat dissipation capacity of the furnace top by more than 50 percent, effectively reduce the temperature of the surface of the furnace top and optimize the operating environment of workers; the consumption of heating gas can be reduced, and the operation cost is saved; the temperature of the raw coke oven gas in the riser can be increased, and the steam temperature of the riser waste heat utilization device can be increased. Meanwhile, the thickness of the furnace top insulating brick layer can be reduced, and the investment of devices such as refractory materials, iron pieces and the like is reduced.
[ example 2 ]
In the embodiment, the energy-saving method for the top of the coke oven is applied to a newly-built tamping coke oven, as shown in fig. 1-3, after the building of the coke oven is completed, the surface of a top brick of a carbonization chamber, the inner surfaces of a smoke guide hole, a riser hole and a fire observation hole are cleaned, a layer of pretreatment liquid is coated on the surface, and then a high-temperature-resistant heat-insulating material layer 4 with the thickness of 5mm is coated. The pretreatment liquid can enhance the adhesive force of the heat insulation coating and prolong the service life of the heat insulation coating.
Compared with the conventional furnace top structure, the energy-saving method for the furnace top of the coke oven can reduce the heat dissipation capacity of the furnace top by more than 30 percent, effectively reduce the temperature of the surface of the furnace top and optimize the operating environment of workers; the consumption of heating gas can be reduced, and the operation cost is saved; the temperature of the raw coke oven gas in the riser can be increased, and the steam temperature of the riser waste heat utilization device can be increased.
[ example 3 ]
In the embodiment, the energy-saving method for the top of the coke oven is applied to a top-charging or tamping coke oven which is put into production, as shown in fig. 1-3, after the coke oven is put into production, if the temperature of the top surface of the coke oven is too high, the safety and the health of workers at the top of the coke oven are affected, the refractory bricks at the top surface of the coke oven can be removed, the exposed top surface of the coke oven can be cleaned, then the high-temperature-resistant heat-insulating coating 4 with the thickness of 10mm is coated, and after the refractory bricks are dried completely, the removed refractory bricks at the top surface of the coke oven are laid again.
The invention reduces the heat dissipation capacity of the furnace top and the surface temperature of the furnace top, reduces the equipment investment of refractory materials, iron pieces and the like, and achieves the purposes of saving energy, reducing consumption and improving the energy utilization rate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The main body of the coke oven top is a masonry body built by refractory bricks and insulating bricks, a coal charging hole or a smoke guide hole and a riser hole are reserved above a carbonization chamber, and a fire observation hole is reserved above a combustion chamber; the high-temperature-resistant heat-insulating material coating is coated between the furnace top masonry brick layers and around the coal charging hole or the smoke guide hole, the ascending pipe hole or the observation hole.
2. The energy saving coke oven roof as claimed in claim 1, wherein said coating of high temperature resistant, heat insulating and heat preserving material is one or more layers.
3. The energy saving coke oven roof as claimed in claim 1, wherein the coating of high temperature resistant thermal insulation material is applied to the surface of the oven roof brickwork and holes or inside the brickwork.
4. The energy-saving coke oven roof as claimed in claim 1, wherein the thickness of the coating layer of the high-temperature resistant, heat-insulating and heat-preserving material is 1-20 mm.
5. The energy saving coke oven roof as claimed in claim 1, wherein before the refractory bricks or insulating bricks are coated with the high temperature resistant heat insulating material, a layer of corresponding pretreatment liquid is coated on the brick surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192892.9A CN110724539A (en) | 2019-11-28 | 2019-11-28 | Energy-saving coke oven top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192892.9A CN110724539A (en) | 2019-11-28 | 2019-11-28 | Energy-saving coke oven top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110724539A true CN110724539A (en) | 2020-01-24 |
Family
ID=69225764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911192892.9A Withdrawn CN110724539A (en) | 2019-11-28 | 2019-11-28 | Energy-saving coke oven top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110724539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353894A (en) * | 2022-07-29 | 2022-11-18 | 中冶焦耐(大连)工程技术有限公司 | Coke oven roof structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322623A (en) * | 2011-08-24 | 2012-01-18 | 成都中冶节能环保工程有限公司 | Coke oven top waste heat reclaiming system |
| CN109897649A (en) * | 2019-04-03 | 2019-06-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven combustion chamber burner insulation construction |
| CN211420051U (en) * | 2019-11-28 | 2020-09-04 | 中冶焦耐(大连)工程技术有限公司 | Energy-saving coke oven top |
-
2019
- 2019-11-28 CN CN201911192892.9A patent/CN110724539A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322623A (en) * | 2011-08-24 | 2012-01-18 | 成都中冶节能环保工程有限公司 | Coke oven top waste heat reclaiming system |
| CN109897649A (en) * | 2019-04-03 | 2019-06-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven combustion chamber burner insulation construction |
| CN211420051U (en) * | 2019-11-28 | 2020-09-04 | 中冶焦耐(大连)工程技术有限公司 | Energy-saving coke oven top |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353894A (en) * | 2022-07-29 | 2022-11-18 | 中冶焦耐(大连)工程技术有限公司 | Coke oven roof structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20200124 |