CN209778737U - Coke oven combustion chamber furnace end insulation construction - Google Patents
Coke oven combustion chamber furnace end insulation construction Download PDFInfo
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- CN209778737U CN209778737U CN201920445834.1U CN201920445834U CN209778737U CN 209778737 U CN209778737 U CN 209778737U CN 201920445834 U CN201920445834 U CN 201920445834U CN 209778737 U CN209778737 U CN 209778737U
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Abstract
The utility model relates to a heat preservation structure of a furnace end of a coke oven combustion chamber.A furnace end masonry of the coke oven combustion chamber is externally provided with a furnace protection iron piece which comprises a protection plate, a furnace door frame and a furnace post; and a heat insulation material layer is coated on the furnace end masonry or the furnace protection iron piece. The utility model discloses a at furnace end brickwork or the method of the thermal-insulated insulating material layer of surface coating of protecting stove ironware, reduce the heat dissipation capacity of limit flame path, improve the temperature of limit flame path and protect the life of stove ironware, reach energy saving and consumption reduction, improve energy utilization's purpose.
Description
Technical Field
The utility model relates to a coke oven technical field especially relates to a coke oven combustion chamber furnace head insulation construction.
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 combustion chamber is the highest part of the coke oven, and the temperature in the vertical flue of the combustion chamber can reach 1300-1400 ℃. The furnace end of the combustion chamber of the existing large-scale coke oven is generally built by silica bricks and high-alumina bricks with good rapid cooling and heating resistance (such as a machine-coke side furnace end structure of a coke oven combustion chamber-carbonization chamber unit disclosed by the Chinese patent with the publication number of CN 2892859Y), and a furnace protection iron piece consisting of a protection plate, a furnace door frame, a furnace column and the like is arranged on the outer side of the furnace end building body.
The furnace end brickwork and the furnace protection iron piece have better heat-conducting property, so that the heat dissipation capacity of the furnace end on the combustion chamber machine/coke side is higher, and the service life of the furnace protection iron piece is greatly reduced; the working environment temperature of workers is high during coke pushing, and the environment is poor. In addition, the heat dissipation of the burner of the combustion chamber is mainly the loss of heat of the side flame path, which causes the temperature of the side flame path to be 150-300 ℃ lower than that of the middle flame path, the burning of the burner occurs, and the phenomena of smoke and fire occur during coke pushing; in order to wait for the maturity of furnace end coke during production, the coking time can be correspondingly prolonged, and the energy consumption is increased.
Disclosure of Invention
The utility model provides a coke oven combustion chamber furnace end insulation construction through the method at furnace end brickwork or the thermal-insulated insulating material layer of surface coating of protecting the stove ironware, reduces the heat dissipation capacity of limit flame path, improves the temperature of limit flame path and protects the life of stove ironware, reaches energy saving and consumption reduction, improvement energy utilization's purpose.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A furnace end heat preservation structure of a coke oven combustion chamber is characterized in that a furnace end masonry of the coke oven combustion chamber is externally provided with a furnace protection iron piece, and the furnace protection iron piece comprises a protection plate, a furnace door frame and a furnace column; and a heat insulation material layer is coated on the furnace end masonry or the furnace protection iron piece.
The inner surface or the outer surface of the furnace end brickwork is coated with a heat insulation material layer.
The protective plate is a large protective plate, and the inner surface and/or the outer surface of the large protective plate is coated with a heat insulation material layer.
The protective plate is a middle protective plate, and the inner surface and/or the outer surface of the middle protective plate and the furnace door frame are/is coated with a heat insulation material layer.
The coating thickness of the heat insulation material layer is 1-40 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1) The heat dissipation capacity of the furnace head of the combustion chamber is reduced by a method of coating a heat insulation material layer on the surface of the furnace head masonry or the furnace protection iron piece;
2) the temperature of the side flame path can be effectively improved, the maturity of furnace end coke is facilitated, the coking time is shortened, and the phenomenon of smoke and fire during coke pushing is prevented;
3) The working temperature of the furnace protecting iron piece can be reduced, and the service life of the furnace protecting iron piece is prolonged;
4) The method is suitable for not only a newly built coke oven, but also the reconstruction of the old coke oven; the burner can be applied to the burner at the machine side of the combustion chamber and can also be applied to the burner at the coke side of the combustion chamber; the purposes of saving energy, reducing consumption and increasing the energy utilization rate can be realized.
Drawings
fig. 1 is a schematic view of a furnace end heat preservation structure in embodiment 1 of the present invention.
Fig. 2 is a schematic view of a furnace end heat preservation structure in embodiment 2 of the present invention.
Fig. 3 is a schematic view of a furnace end heat preservation structure in embodiment 4 of the present invention.
Fig. 4 is a schematic view of a furnace end heat preservation structure in embodiment 5 of the present invention.
In the figure: 1. furnace end brickwork 2, large protection plate 3, furnace column 4, heat insulation material layer 5, middle protection plate 6, furnace door frame
Detailed Description
the following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
As shown in fig. 1 and 2, in the heat insulation structure for the furnace end of the coke oven combustion chamber of the present invention, a furnace end masonry 1 of the coke oven combustion chamber is externally provided with a furnace protection iron piece, and the furnace protection iron piece comprises a protection plate, a furnace door frame 6 and a furnace column 3; the furnace end brickwork 1 or the furnace protection iron piece is coated with a heat insulation material layer 4.
The inner surface or the outer surface of the furnace end brickwork 1 is coated with a heat insulation material layer 4.
The protective plate is a large protective plate 2, and the inner surface and/or the outer surface of the large protective plate 2 is coated with a heat insulation material layer 4.
The protection plate is a middle protection plate 5, and the inner surface and/or the outer surface of the middle protection plate 5 and the furnace door frame 6 are/is coated with a heat insulation material layer 4.
the coating thickness of the heat insulation material layer 4 is 1-40 mm.
The inner surface of the furnace end brickwork is the surface of one side, close to the furnace end, of the vertical flame path on the side of the combustion chamber, and the outer surface of the furnace end brickwork is the surface of one side, in contact with the furnace protection iron piece, of the furnace end brickwork and does not contain wall tiles of a carbonization chamber. It should be noted that the thermal insulation material layer 4 coated on the inner surface of the furnace end should not be too thick, otherwise the temperature of the silica bricks forming the furnace end masonry would be reduced to near the crystal transformation point of the silica bricks, which would result in the damage of the silica bricks.
The furnace protecting iron piece comprises a protection plate, a furnace door frame 6, a furnace column 3 and the like, and is mainly used for uniformly and reasonably distributing protective pressure on the furnace end brickwork 1 and simultaneously ensuring the sealing among the furnace end brickwork 1, the protection plate, the furnace door frame and a furnace door knife edge. The protection plates commonly used at present are divided into three types, namely large, medium and small. The existing large coke ovens all adopt large protection plates 2, the prior small protection plates are changed into middle protection plates 5, and the small protection plates are only suitable for small coke ovens.
The heat insulation material used to form the heat insulation material layer 4 of the present invention may be a commercially available heat insulation coating, or a coating with heat insulation properties described in the publication (for example, "a high temperature resistant heat insulation coating" disclosed in chinese patent No. CN 106497306A, "a high temperature resistant heat insulation coating" disclosed in chinese patent No. CN 103881426A, "a high temperature resistant heat insulation coating" disclosed in chinese patent No. CN 106519962A, or "a high temperature resistant heat insulation coating" disclosed in chinese patent No. CN 106336797A), and the requirements for its properties 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 solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present 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 furnace end heat preservation structure is applied to a newly-built top-mounted or stamp-charged coke oven, as shown in fig. 1, the furnace protection iron piece of the coke oven adopts a large protection plate structure, and the furnace protection iron piece (a large protection plate 2, an oven door frame and an oven column 3) is installed after the coke oven is built.
Before installation, the inner wall of the large protection plate 2 is coated with a heat insulation material layer 4, and the coating thickness is 8 mm. Then, the installation of the furnace protecting iron piece and the subsequent operations of oven baking, grouting and the like of the coke oven are carried out.
Compare with conventional furnace end structure, use this embodiment furnace end insulation construction's furnace end heat dissipation capacity reduces more than 40%, has effectively reduced the operating temperature who protects stove ironware, is favorable to prolonging its life, has optimized workman operational environment simultaneously.
[ example 2 ]
In the embodiment, the furnace end heat preservation structure is applied to a newly-built top-mounted or stamp-charged coke oven, as shown in fig. 2, a furnace iron protection piece of the coke oven adopts a middle protection plate structure, and a furnace iron protection piece middle protection plate 5, a furnace door frame 6 and a furnace column 3 are installed after the coke oven is built.
Before installation, the outer surfaces of the middle protective plate 5 and the furnace door frame 6 are cleaned, a layer of pretreatment liquid matched with the pre-coated heat insulation coating is coated on the outer surfaces of the middle protective plate and the furnace door frame, and then a heat insulation material layer 4 is coated, wherein the coating thickness is 5 mm. And then carrying out the operations of installing the furnace protecting iron piece, baking the furnace of the coke oven and the like.
compare with conventional furnace end structure, use this embodiment furnace end heat preservation structure's furnace end heat dissipation capacity reduces more than 30%, is favorable to improving furnace end flame path temperature, optimizes workman operational environment.
[ example 3 ]
In the embodiment, the furnace end heat insulation structure is applied to a top-mounted or stamp-charging coke oven which is put into production. The furnace protecting iron piece of the coke oven adopts a large protecting plate structure, after the coke oven is put into operation, the temperature of a fire channel of a furnace end is low, and the furnace end of a carbonization chamber generates coke, so that the structure of the furnace end needs to be improved.
In the embodiment, the inner side of the disassembled large protection plate is adhered with the asbestos-free calcium silicate plate, the outer surfaces of the large protection plate and the furnace door frame are cleaned, a layer of pretreatment liquid matched with pre-coated heat insulation paint is coated on the outer surfaces of the large protection plate and the furnace door frame, and then a heat insulation material layer is coated, wherein the coating thickness is 5 mm.
After the improved coke oven is put into use again, compared with the coke oven before the structure improvement of the coke oven head, the heat dissipation capacity of the coke oven head is reduced by more than 30 percent, the temperature of a flame path of the coke oven head is improved, the generation of coke formation at the coke oven head of a carbonization chamber is reduced, the operating environment of workers is optimized, and the yield increase and the consumption reduction are realized.
[ example 4 ]
In the embodiment, the furnace end heat preservation structure is applied to a top-mounted or stamp-charged coke oven, and as shown in fig. 3, a heat insulation material layer 4 is coated on the inner surface of a furnace end brickwork 1 of a combustion chamber of the coke oven. The process is as follows: before a vertical flue capping brick of a combustion chamber is built, the inner surface of a furnace end masonry 1 on one side of a combustion chamber side and a coke side flue close to a furnace end is cleaned, then a layer of pretreatment liquid matched with a heat insulation material layer is coated on the inner surface of the furnace end masonry in advance, finally a layer of heat insulation material layer 4 with the thickness of 4mm is coated, then the building of a coke oven is continued, and furnace protection iron pieces such as a large protection plate 2 and a furnace column 3 are installed.
Compared with the conventional furnace end structure, the temperature of the inner wall of the furnace end heat-insulating structure is reduced by more than 400 ℃.
[ example 5 ]
In the embodiment, the furnace end heat preservation structure is applied to a top-mounted or stamp-charged coke oven, and as shown in fig. 4, a heat insulation material layer 4 is coated on the outer surface of a furnace end brickwork 1 of a combustion chamber of the coke oven. The process is as follows: before installing the coke oven furnace protecting iron piece, the outer surface of the furnace end masonry 1 at the coke side of the combustion chamber and the part contacted with the furnace protecting iron piece are cleaned, and then a layer of heat insulation material layer 4 with the thickness of 6mm is coated. After that, the protective shield 5, the furnace door frame 6 and the furnace column 3 are mounted.
Compared with the conventional furnace end structure, the furnace end heat dissipation capacity of the furnace end heat preservation structure applied to the embodiment is reduced by more than 30%.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. a furnace end heat preservation structure of a coke oven combustion chamber is characterized in that a furnace end masonry of the coke oven combustion chamber is externally provided with a furnace protection iron piece, and the furnace protection iron piece comprises a protection plate, a furnace door frame and a furnace column; the furnace is characterized in that a heat insulation material layer is coated on the furnace end brickwork or the furnace protection iron piece.
2. The coke oven combustion chamber burner insulation structure of claim 1, wherein the inner or outer surface of the burner masonry is coated with a layer of thermal insulation material.
3. The coke oven combustion chamber burner insulation structure of claim 1, wherein the protective plate is a large protective plate, and the inner surface and/or the outer surface of the large protective plate is coated with a thermal insulation material layer.
4. The coke oven combustion chamber burner insulation structure of claim 1, wherein the protective plate is a middle protective plate, and the inner surface and/or the outer surface of the middle protective plate and the oven door frame are/is coated with a thermal insulation material layer.
5. The coke oven combustion chamber burner heat-insulating structure as claimed in any one of claims 1 to 4, wherein the coating thickness of the heat-insulating material layer is 1 to 40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920445834.1U CN209778737U (en) | 2019-04-03 | 2019-04-03 | Coke oven combustion chamber furnace end insulation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920445834.1U CN209778737U (en) | 2019-04-03 | 2019-04-03 | Coke oven combustion chamber furnace end insulation construction |
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| CN209778737U true CN209778737U (en) | 2019-12-13 |
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| CN201920445834.1U Active CN209778737U (en) | 2019-04-03 | 2019-04-03 | Coke oven combustion chamber furnace end insulation construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199688A1 (en) * | 2019-04-03 | 2020-10-08 | 中冶焦耐(大连)工程技术有限公司 | Burner heat-preservation structure of coke oven combustion chamber, coke oven combustion chamber and coke oven |
| CN114231297A (en) * | 2021-11-22 | 2022-03-25 | 宣化钢铁集团有限责任公司 | Coke oven door preheating device |
-
2019
- 2019-04-03 CN CN201920445834.1U patent/CN209778737U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199688A1 (en) * | 2019-04-03 | 2020-10-08 | 中冶焦耐(大连)工程技术有限公司 | Burner heat-preservation structure of coke oven combustion chamber, coke oven combustion chamber and coke oven |
| CN114231297A (en) * | 2021-11-22 | 2022-03-25 | 宣化钢铁集团有限责任公司 | Coke oven door preheating device |
| CN114231297B (en) * | 2021-11-22 | 2023-11-21 | 宣化钢铁集团有限责任公司 | Coke oven door preheating device |
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