CN211688932U - Light-weight plug brick for four-nozzle gasification furnace - Google Patents
Light-weight plug brick for four-nozzle gasification furnace Download PDFInfo
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- CN211688932U CN211688932U CN202020158334.2U CN202020158334U CN211688932U CN 211688932 U CN211688932 U CN 211688932U CN 202020158334 U CN202020158334 U CN 202020158334U CN 211688932 U CN211688932 U CN 211688932U
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- truncated cone
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Abstract
The utility model relates to a coal slurry gasifier structure provides a light-weighted four nozzle end cap bricks for gasifier. The plug brick for the lightweight four-nozzle gasification furnace is provided with a truncated cone body with the diameter gradually expanded from bottom to top; the upper end of the frustum cone body is provided with a frustum I which is integrally cast with the frustum cone body, and the diameter of the frustum I is larger than the maximum diameter of the frustum cone body; an annular notch is formed between the bottom surface of the cone frustum body and the round platform I, and the bottom surface of the cone frustum body forms a round platform II with the diameter smaller than that of the round platform I; the circular truncated cone I, the circular truncated cone body and the circular truncated cone II form an integrally cast I-shaped plug brick. The utility model reduces the diameter of the frustum part by the design of the annular notch, thereby effectively reducing the use of chromium oxide materials in the plug brick; the step at the frustum part can effectively resist high-temperature media in the furnace, and the use safety is ensured.
Description
Technical Field
The utility model relates to a coal slurry gasifier structure, concretely relates to end cap brick for lightweight four-nozzle gasifier.
Background
The four-nozzle opposed coal water slurry pressurized gasification technology is a technology with independent intellectual property rights in China, can be widely applied to coal chemical industries such as synthetic ammonia, coal-to-methanol and the like, and has a large amount of applications in China, wherein 5 burners are arranged in the four-nozzle opposed coal water slurry pressurized gasification furnace: the preheating burner heats the hearth, the preheating burner needs to be pulled out after reaching the feeding temperature, then a burner hole of the preheating burner is plugged and sealed by using a plug brick, and only 4 horizontally opposite burners are used when the gasifier is fed; in normal use, the choke plug brick is subjected to scouring and erosion by high-temperature media in a furnace like the crown brick, so that the choke plug brick uses heavy high-chromium materials.
The plug brick needs to be pulled out when the gasification furnace is shut down so as to rapidly check the condition in the furnace, the plug brick needs to be installed when the gasification furnace is restarted, and the common plug brick is of an integral structure so as to be convenient to install and disassemble. In addition, based on the working condition and the size of the four-nozzle opposed coal water slurry gasification furnace, the current plug uses a prefabricated part made of high-chromium materials, the size is larger, and the weight of a single plug brick is generally 80-120 kg; the plug needs frequent installation and dismantlement in the use, and this operation is all gone on under high temperature, on the one hand because the weight of plug brick is too big, and on the other hand because the contact area of plug brick and fire door brick is too big, therefore the dismantlement intensity of labour of plug brick is very big, and the chromic oxide material that the plug brick used is rare resource simultaneously, needs use as few as possible.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a four nozzle gasifier of lightweight is with end cap brick alleviates the weight of end cap brick through structural design, has also reduced the area of contact of end cap brick and fire door brick simultaneously, is showing the use cost who reduces intensity of labour and end cap brick when changing of end cap brick high temperature when guaranteeing safety in production.
The utility model adopts the following technical scheme for accomplishing the above purpose:
the plug brick for the lightweight four-nozzle gasification furnace is provided with a truncated cone body which is gradually expanded in diameter from bottom to top; the upper end of the frustum cone body is provided with a frustum I which is integrally cast with the frustum cone body, and the diameter of the frustum I is larger than the maximum diameter of the frustum cone body; an annular notch is formed between the bottom surface of the cone frustum body and the round platform I, and the bottom surface of the cone frustum body forms a round platform II with the diameter smaller than that of the round platform I; the circular truncated cone I, the circular truncated cone body and the circular truncated cone II form an integrally cast I-shaped plug brick.
A circular truncated cone III is arranged between the circular truncated cone I and the circular truncated cone II; the circular truncated cone III is positioned on the outer diameter surface of the circular truncated cone body; the circular truncated cone III divides the annular notch into an upper part and a lower part; the circular truncated cone I, the circular truncated cone body, the circular truncated cone III and the circular truncated cone II form an integrally poured and formed king-shaped plug brick.
And a heat-resistant steel piece convenient to hoist is arranged in the plug brick.
The utility model provides a light-weight end cap brick for four-nozzle gasification furnace, through setting up the design that the annular lacks the groove and reduce the diameter at frustum position, set up the design of round platform at the interval on the frustum simultaneously, optimize "T font" end cap at present into "I shape" or "king style of calligraphy" end cap, effectively less the use of chromium oxide material in the end cap brick; the step at the frustum part can effectively resist high-temperature media in the furnace, the use safety is ensured, and meanwhile, the use of the step reduces the contact area between the plug and the furnace mouth brick, thereby being beneficial to the plug of the plug brick at high temperature.
Drawings
Fig. 1 is a schematic sectional structure view of a current plug brick.
Fig. 2 and 3 are schematic views of the "i-shaped" structure of the plug of the present invention.
Fig. 4 is a schematic view of the structure of the plug of the present invention in the shape of "king character".
In the figure: 1. round platform I, 2, circular cone frustum body, 3, round platform II, 4, round platform III, 5, annular scarce groove.
Detailed Description
The gasification furnace plug brick of the utility model is explained in detail with the attached drawings;
as shown in fig. 2 and 3, the plug brick for the lightweight four-nozzle gasification furnace comprises a conical frustum body 2 with the diameter gradually increased from bottom to top; the upper end of the frustum cone 2 is provided with a frustum I1 which is integrally cast with the frustum cone, and the diameter of the frustum I1 is larger than the maximum diameter of the frustum cone 2; an annular notch 5 is formed between the bottom surface of the circular truncated cone body 2 and the circular truncated cone I, and a circular truncated cone II 3 with the diameter smaller than that of the circular truncated cone I1 is formed on the bottom surface of the circular truncated cone body 2; the circular truncated cone I1, the circular truncated cone body 2 and the circular truncated cone II 3 form an integrally cast I-shaped plug brick.
As shown in fig. 4, a circular truncated cone iii is further arranged between the circular truncated cone i 1 and the circular truncated cone ii 3; the circular truncated cone III is positioned on the outer diameter surface of the circular truncated cone body; the circular truncated cone III divides the annular notch 5 into an upper part and a lower part; the circular truncated cone I, the circular truncated cone body, the circular truncated cone III and the circular truncated cone II form an integrally poured and formed king-shaped plug brick.
And a heat-resistant steel piece convenient to hoist is arranged in the plug brick.
The diameter of the frustum body in the figures 2, 3 and 4 is far smaller than that of the frustum of the current plug (figure 1) by the arrangement of the annular notch 5, so that the use of chromium oxide materials in the plug brick is reduced; in addition, the round platforms II and III in the figures 2, 3 and 4 are designed to resist high-temperature media in the furnace.
Claims (3)
1. The plug brick for the lightweight four-nozzle gasification furnace is provided with a truncated cone body which is gradually expanded in diameter from bottom to top; the upper end of the frustum cone body is provided with a frustum I which is integrally cast with the frustum cone body, and the diameter of the frustum I is larger than the maximum diameter of the frustum cone body; the method is characterized in that: an annular notch is formed between the bottom surface of the cone frustum body and the round platform I, and the bottom surface of the cone frustum body forms a round platform II with the diameter smaller than that of the round platform I; the circular truncated cone I, the circular truncated cone body and the circular truncated cone II form an integrally cast I-shaped plug brick.
2. The light-weight plug brick for the four-nozzle gasifier according to claim 1, wherein: a circular truncated cone III is arranged between the circular truncated cone I and the circular truncated cone II; the circular truncated cone III is positioned on the outer diameter surface of the circular truncated cone body; the circular truncated cone III divides the annular notch into an upper part and a lower part; the circular truncated cone I, the circular truncated cone body, the circular truncated cone III and the circular truncated cone II form an integrally poured and formed king-shaped plug brick.
3. The light-weight plug brick for the four-nozzle gasifier according to claim 1, wherein: and a heat-resistant steel piece convenient to hoist is arranged in the plug brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020158334.2U CN211688932U (en) | 2020-02-10 | 2020-02-10 | Light-weight plug brick for four-nozzle gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020158334.2U CN211688932U (en) | 2020-02-10 | 2020-02-10 | Light-weight plug brick for four-nozzle gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211688932U true CN211688932U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020158334.2U Active CN211688932U (en) | 2020-02-10 | 2020-02-10 | Light-weight plug brick for four-nozzle gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211688932U (en) |
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2020
- 2020-02-10 CN CN202020158334.2U patent/CN211688932U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220601 Address after: 471039 No. 43, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee after: SINOSTEEL LUOYANG INSTITUTE OF REFRACTORIES RESEARCH Co.,Ltd. Address before: No.70 Phoenix Road, Jiangning District, Nanjing City, Jiangsu Province, 211100 (Jiangning Development Zone) Patentee before: Sinosteel Nanjing Environmental Engineering Technology Research Institute Co.,Ltd. Patentee before: Sinosteel Luoyang Refractory Research Institute Co., Ltd |
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| TR01 | Transfer of patent right |