CN109423313B - Method for transforming dry quenching furnace shell - Google Patents
Method for transforming dry quenching furnace shell Download PDFInfo
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- CN109423313B CN109423313B CN201710754782.1A CN201710754782A CN109423313B CN 109423313 B CN109423313 B CN 109423313B CN 201710754782 A CN201710754782 A CN 201710754782A CN 109423313 B CN109423313 B CN 109423313B
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- dry quenching
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- quenching furnace
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- 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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The utility model provides a transformation method of putting out stove shell futilely, put out the open platform of stove shell outward appearance and put out the former well bolt hole position of stove futilely and be the level setting, the water seal groove direct mount of the stove of putting out futilely of former doing out is on the cellucotton of stove is put out futilely, directly flows on resistant firebrick when the water in water seal groove spills over, its characterized in that includes following step: a. an inclined middle bolt platform (6) and a water baffle (8) are arranged. The method for transforming the dry quenching furnace shell has the advantages of simple structure of the inclined middle bolt platform and the water baffle plate, convenient manufacture and installation, prolonged service life of refractory bricks of the dry quenching furnace shell and the furnace mouth, normal production of the dry quenching furnace system and saved running cost of the dry quenching furnace.
Description
Technical Field
The invention relates to coking production equipment, in particular to a method for reforming a coke dry quenching furnace shell.
Background
The dry quenching is an advanced process in the coking production, has the functions of saving energy, reducing consumption and protecting the environment, and can improve the quality of the coke.
FIG. 1 is a schematic structural view of a furnace shell of a dry quenching furnace according to an embodiment of the invention. The dry quenching furnace is a vertical groove body with a circular section, the furnace shell of the dry quenching furnace is of a large thin-wall shell structure, the shell is made of steel plates, the material of the furnace shell is Q235-A, the wall thickness is 6-16mm, and the diameter is 5-12 m. The furnace shell of the dry quenching furnace is an independent cylindrical steel structure, the load borne by the furnace shell is large, 1200-2400 tons of refractory materials in the furnace are borne on the brick supporting plates of the cooling section, the chute section and the pre-storage section respectively, and the brick supporting plates are welded on the furnace shell. Generally, the inside and the outside of a furnace shell of the dry quenching furnace are seriously corroded, and the corrosion degree of some furnaces exceeds 20 percent of the thickness of the furnace shell. Particularly, the platform furnace shell at the position of the middle bolt hole of the dry quenching furnace is seriously corroded, and the refractory material of the refractory brick at the furnace mouth is seriously damaged. The corrosion of the platform furnace shell at the position of the middle bolt hole of the dry quenching furnace is mainly caused by that water and rainwater in a water seal groove at the furnace opening flow along the furnace shell and are retained to generate corrosion of the furnace shell. The fire-resistant brick at the fire hole is mainly damaged by surface peeling, and the main reason is that in the sealing process of the dry quenching furnace cover and the water seal tank, water in the water seal tank overflows and directly leaks onto the fire-resistant brick in a high-temperature state to damage the fire-resistant brick.
The known platform structure for the position of the central bolt hole of the dry quenching furnace has various inconveniences and problems.
Disclosure of Invention
The invention aims to provide a method for modifying a dry quenching furnace shell by changing the platform angle of a middle bolt hole position of a dry quenching furnace.
The invention also aims to provide a method for reforming a dry quenching furnace shell with a water baffle at a dry quenching furnace mouth.
In order to achieve the purpose, the technical solution of the invention is as follows:
the utility model provides a transformation method of putting out stove shell futilely, put out the open platform of stove shell outward appearance and put out the former well bolt hole position of stove futilely and be the level setting, the water seal groove direct mount of the stove of putting out futilely of former doing out is on the cellucotton of stove is put out futilely, directly flows on resistant firebrick when the water in water seal groove spills over, its characterized in that includes following step:
a. platform with inclined middle bolt
During maintenance or production of the dry quenching furnace, cutting off an original horizontally arranged middle bolt platform, or directly adding an inclined middle bolt platform with an inclined surface on the middle bolt platform, so that one end of the inclined middle bolt platform is welded and fixed on a furnace shell at one side of the dry quenching furnace, the other end of the inclined middle bolt platform is welded on a furnace shell at the other side of the dry quenching furnace, the inclined middle bolt platform is a steel platform with the inclined surface on the surface, and the inclination of the inclined middle bolt platform is more than or equal to 3 degrees and less than or equal to 5 degrees;
b. is provided with a water baffle
During maintenance of the dry quenching furnace, the water seal tank body is taken out, a steel plate is horizontally welded on a furnace shell of the dry quenching furnace and used as a water seal tank platform for mounting the water seal tank, the lower surface of the steel plate covers on the cellucotton, a water baffle is welded on the side face of the end part of the steel plate in the direction in the platform furnace, the water baffle and the steel plate are welded firmly and tightly in a vertical mode, the platform added at the furnace mouth separates water flow overflowing from the water seal tank at the furnace mouth, and the water overflowing from the water seal tank is prevented from directly falling onto a refractory brick in a high-temperature state.
The method for reforming the furnace shell of the dry quenching furnace can be further realized by adopting the following technical measures.
In the method, the inclined middle bolt platform needs to be welded firmly and tightly, and the upper surface and the lower surface of the inclined middle bolt platform are subjected to corrosion prevention treatment.
After the technical scheme is adopted, the method for transforming the dry quenching furnace shell has the following advantages:
1. the inclined middle bolt platform and the water baffle plate are simple in structure and convenient to manufacture and install;
2. the water overflowing from the water seal tank and the flowing-down rainwater directly flow to the bottom of the dry quenching furnace without being retained on the middle bolt platform, so that the corrosion of the furnace shell caused by the accumulated water is avoided; the platform added at the fire hole separates water overflowing from the fire hole water seal tank from directly flowing onto the refractory bricks, so that the service lives of the furnace shell of the dry quenching furnace and the fire hole refractory bricks are prolonged;
3. the normal production of the dry quenching furnace system is ensured, and the running cost of the dry quenching furnace is saved.
Drawings
FIG. 1 is a schematic structural view of a furnace shell of a dry quenching furnace according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a tilted middle bolt platform according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a water seal tank before modification according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a modified water seal tank according to an embodiment of the present invention.
In the figure: 1 dry quenching furnace mouth, 2 water seal grooves, 3 dry quenching furnace shell, 4 middle bolt platforms, 5 middle bolt holes, 6 inclined middle bolt platforms, 7 fiber cotton, 8 water baffles, 9 top surfaces of refractory bricks, 10 water seal groove reference water surfaces and 11 water seal groove platforms.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The invention relates to a method for reforming a dry quenching furnace shell, wherein an open platform at the position of an original middle bolt hole of a dry quenching furnace on the outer surface of the dry quenching furnace shell is horizontally arranged, a water seal tank of the original dry quenching furnace is directly arranged on fiber cotton of the dry quenching furnace, and water in the water seal tank directly flows onto a refractory brick when overflowing, and the method is characterized by comprising the following steps of:
a. is provided with an inclined middle bolt platform 6
During maintenance or production of the dry quenching furnace, an original horizontally arranged middle bolt platform is cut off, or an inclined middle bolt platform 6 with an inclined surface is directly added on the middle bolt platform, so that one end of the inclined middle bolt platform is welded and fixed on a furnace shell at one side of the dry quenching furnace, the other end of the inclined middle bolt platform is welded on a furnace shell at the other side of the dry quenching furnace, the inclined middle bolt platform 6 is a steel platform with the inclined surface, and the inclination of the inclined middle bolt platform is 3 degrees. The inclined middle bolt platform needs to be welded firmly and tightly, and anti-corrosion treatment is performed on the upper surface and the lower surface of the inclined middle bolt platform. Fig. 2 is a schematic structural view of a tilted middle bolt platform according to an embodiment of the present invention.
b. Is provided with a water baffle 8
Fig. 3 is a schematic structural view of a water seal tank before modification in the embodiment of the present invention, and fig. 4 is a schematic structural view of a water seal tank after modification in the embodiment of the present invention. During maintenance of the dry quenching furnace, the body of the water seal tank 2 is taken out, a steel plate is horizontally welded on a furnace shell of the dry quenching furnace to be used as a water seal tank platform 11 for installing the water seal tank, the lower surface of the steel plate covers on the cellucotton 7, a water baffle plate 8 is welded on the side face of the end part of the steel plate in the direction in the platform furnace, the water baffle plate and the steel plate are welded firmly and tightly in a vertical mode, the platform added at the furnace mouth separates water flow overflowing from the water seal tank at the furnace mouth, and the water overflowing from the water seal tank is prevented from directly falling onto refractory bricks in a high-temperature state.
The method for reforming the furnace shell of the dry quenching furnace has the advantages that the platform at the position of the middle bolt hole of the dry quenching furnace is improved into an inclined plane with an angle of 3 degrees from the original horizontal plane, the stainless steel plate is additionally arranged at the furnace mouth of the dry quenching furnace to protect refractory bricks from being directly contacted by water, and the obtained effects are as follows: the water overflowing from the water seal tank and the rainwater flowing down from the upper surface directly flow to the bottom of the dry quenching furnace without being retained on the middle bolt platform, so that the corrosion of the furnace shell caused by water accumulation is avoided; the platform added at the fire hole separates water overflowing from the fire hole water seal tank from directly flowing onto the refractory bricks; therefore, the service life of the furnace shell and the refractory bricks at the furnace mouth of the dry quenching furnace is prolonged, the normal production of a dry quenching furnace system is ensured, and the operation cost of the dry quenching furnace is saved.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (2)
1. The utility model provides a transformation method of putting out stove shell futilely, put out the open platform of stove shell outward appearance and put out the former well bolt hole position of stove futilely and be the level setting, the water seal groove direct mount of the stove of putting out futilely of former doing out is on the cellucotton of stove is put out futilely, directly flows on resistant firebrick when the water in water seal groove spills over, its characterized in that includes following step:
a. setting inclined middle bolt platform (6)
During maintenance or production of the dry quenching furnace, an open platform which is originally horizontally arranged is cut off, or an inclined middle bolt platform (6) with an inclined surface is directly added on the middle bolt platform, so that one end of the inclined middle bolt platform is welded and fixed on a furnace shell at one side of the dry quenching furnace, the other end of the inclined middle bolt platform is welded on a furnace shell at the other side of the dry quenching furnace, the inclined middle bolt platform (6) is a steel platform with the surface being an inclined surface, and the inclination of the inclined middle bolt platform is more than or equal to 3 degrees and less than or equal to 5 degrees;
b. setting breakwater (8)
During maintenance of the dry quenching furnace, the body of the water seal tank (2) is taken out, a steel plate is horizontally welded on a furnace shell of the dry quenching furnace to be used as a water seal tank platform (11) for installing the water seal tank, the lower surface of the steel plate covers on the cellucotton (7), a water baffle (8) is welded on the side surface of the end part of the steel plate in the direction in the platform furnace, so that the water baffle and the steel plate are vertically and firmly and tightly welded, the platform added at the furnace opening separates water flow overflowing from the water seal tank at the furnace opening, and the water overflowing from the water seal tank is prevented from directly falling onto a refractory brick in a high-temperature state.
2. The method for reconstructing a shell of a dry quenching furnace as claimed in claim 1, wherein said inclined pin platform is welded firmly and tightly, and the upper surface and the lower surface of the inclined pin platform are treated with corrosion prevention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710754782.1A CN109423313B (en) | 2017-08-29 | 2017-08-29 | Method for transforming dry quenching furnace shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710754782.1A CN109423313B (en) | 2017-08-29 | 2017-08-29 | Method for transforming dry quenching furnace shell |
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| Publication Number | Publication Date |
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| CN109423313A CN109423313A (en) | 2019-03-05 |
| CN109423313B true CN109423313B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710754782.1A Active CN109423313B (en) | 2017-08-29 | 2017-08-29 | Method for transforming dry quenching furnace shell |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2315024C3 (en) * | 1973-03-26 | 1979-09-20 | Linde Ag, 6200 Wiesbaden | Coke cooler |
| JPS6049674B2 (en) * | 1982-04-26 | 1985-11-02 | 興亜石油株式会社 | Coke baking equipment |
| CN101928577B (en) * | 2009-06-19 | 2013-11-27 | 五冶集团上海有限公司 | Installation method of coke dry-quenching discharging device |
| CN101831309A (en) * | 2010-04-02 | 2010-09-15 | 攀钢集团冶金工程技术有限公司 | Dry quenching furnace chute strut replacing method and device |
| CN105403050A (en) * | 2014-09-15 | 2016-03-16 | 五冶集团上海有限公司 | Method for reinforcing dry quenching furnace shell |
| CN104312599B (en) * | 2014-11-15 | 2018-04-24 | 马钢(集团)控股有限公司 | A kind of coke dry quenching furnace furnace hole water seal groove protective device and its manufacture method |
| CN106276030B (en) * | 2015-05-15 | 2018-07-13 | 五冶集团上海有限公司 | The transportation resources of waste material is removed in a kind of coke dry quenching furnace overhaul |
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- 2017-08-29 CN CN201710754782.1A patent/CN109423313B/en active Active
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