CN106906003B - Supporting plate for coal gasification furnace - Google Patents
Supporting plate for coal gasification furnace Download PDFInfo
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- CN106906003B CN106906003B CN201710267586.1A CN201710267586A CN106906003B CN 106906003 B CN106906003 B CN 106906003B CN 201710267586 A CN201710267586 A CN 201710267586A CN 106906003 B CN106906003 B CN 106906003B
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- plate
- ceramic fiber
- shaped
- shaped steel
- coal gasification
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention belongs to a support supporting plate for a thermotechnical kiln. In particular to a supporting plate for a coal gasification furnace. The technical scheme is as follows: the supporting support plate for the coal gasification furnace is composed of a U-shaped supporting plate (1) and 2 triangular support frames (6), and the triangular support frames (6) are symmetrically fixed on the lower planes of the two sides of the U-shaped supporting plate (1). The U-shaped support plate (1) comprises: the outer ceramic fiber board (2), the U-shaped steel board (3), the inner ceramic fiber board (4) and the slag wool (5); an outer ceramic fiber board (2) is pasted on the outer surface of the U-shaped steel plate (3), an inner ceramic fiber board (4) is pasted on the inner surface of the U-shaped steel plate (3), and a U-shaped cavity formed by the inner ceramic fiber board (4) is filled with mineral wool (5); the cross section of the U-shaped steel plate (3) is U-shaped. The invention can not only improve the shock resistance and the thermal shock resistance of the furnace body and prolong the service life of the furnace lining, but also bear the weight of the upper furnace lining material during construction.
Description
Technical Field
The invention belongs to a support supporting plate for a thermotechnical kiln. In particular to a supporting plate for a coal gasification furnace.
Background
With the development of the coal chemical industry and the increase of natural gas consumption, the coal gas industry is transforming from the traditional coal chemical industry to the modern coal chemical industry, and the coal gas industry has been developed to a great extent, and becomes an investment hotspot in the coal chemical industry field. The coal gasification furnace is a core thermal equipment of a coal gas making process, the current coal gasification furnace develops towards large-scale, high-pressure and high-temperature, the height of the furnace body generally reaches 20 to 30m, the furnace is a harsh environment with high temperature (more than 700 ℃), high pressure (more than 3.5 MPa) and high-speed flowing of a multiphase medium, the environment in the coal gasification furnace is more and more complex due to the new coal gasification process, and higher requirements are provided for furnace lining materials and structures of the kiln.
The coal gasifier is enlarged and the gasification process is improved, so that the working conditions in the gasifier are increasingly harsh, the unstable flow of a high-speed medium in the gasifier can generate pulsation and local vortex to cause the vibration of a furnace body, and mechanical equipment such as a fan and the like can also generate vibration when the equipment works. Especially, when the pulsation frequency of the medium moving at high speed is close to the natural frequency of the furnace body and the vibration frequency of mechanical equipment, resonance can occur, so that the furnace body generates large vibration. For a coal gasifier working continuously, if the coal gasifier is subjected to vibration for a long time, a lining material can crack and be damaged, particularly at a stress concentration position. The cracking and the damage of the furnace lining material can cause the leakage of high-temperature and high-pressure gas, thereby causing serious consequences. Therefore, the furnace lining of the coal gasifier not only requires the furnace lining material to resist the erosion of high-temperature medium, erosion and abrasion, resist thermal shock and have high strength, but also requires the furnace lining structure to have shock resistance.
The furnace lining of the coal gasifier develops towards the direction of unshaped, and the casting material is used for casting and forming. Before the large coal gasifier is dried and baked, the strength of the castable at the bottom of the large coal gasifier is not enough to support the weight of the upper furnace lining, and the large coal gasifier is difficult to finish the pouring of the whole furnace lining material at one time. At present, different anchoring pieces are mainly adopted for pouring the furnace lining material for reinforcement, the binding force between the furnace lining material and a furnace shell is enhanced by adopting different anchoring pieces, for example, a ' firm heat stress resistant combined anchoring piece ' (CN 201610504417.0) patent technology, a trumpet-shaped ceramic piece is adopted for keeping the tensile force of a furnace wall, a ' fixing piece for a furnace wall masonry anchoring brick ' (CN 201420767368.6) patent technology, a connecting piece and a fixing ring are adopted for delaying the internal clearance and the partition fracture tendency of the furnace wall, a ' herringbone ' structure is adopted for the high-temperature furnace casting material anchoring piece ' (200820220716.2) patent technology, and the ' herringbone ' structure is adopted for reducing the cost and prolonging the service life. However, the anchoring pieces pre-embedded in the furnace lining are distributed discretely and cannot form a continuous and firm whole with the furnace shell and the furnace lining material, so that the anti-vibration capability of the anchoring pieces is insufficient, and particularly for large coal gasification furnaces, the furnace lining material is easy to damage and fall off, and potential safety hazards are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a supporting plate for a coal gasification furnace, which can improve the vibration resistance and the thermal shock resistance of a furnace body and prolong the service life of a furnace lining, and can bear the weight of an upper furnace lining material during construction.
In order to achieve the purpose, the invention adopts the technical scheme that: the supporting support plate for the coal gasification furnace consists of a U-shaped supporting plate and 2 triangular supporting frames. The triangular support frames are symmetrically fixed on the lower planes of the two sides of the U-shaped support plate, and the vertical edge of the triangular support frame and the opening edge of the U-shaped support plate are in the same vertical plane.
The U-shaped supporting plate comprises an outer ceramic fiber plate, a U-shaped steel plate, an inner ceramic fiber plate and mineral wool. The outer surface of the U-shaped steel plate is pasted with an outer ceramic fiber plate, the inner surface of the U-shaped steel plate is pasted with an inner ceramic fiber plate, and a U-shaped cavity formed by the inner ceramic fiber plate is filled with mineral wool.
The cross section of the U-shaped steel plate is U-shaped, and the external dimension of the U-shaped steel plate is that the length L =100 to 180mm, the width B =300 to 500mm, and the height H =30 to 80mm; the thickness of the outer ceramic fiber board and the thickness of the inner ceramic fiber board are both 10 to 30mm.
In the above technical scheme:
the triangular support frame is formed by welding three L-shaped steels into a right-angled triangle, wherein the length of the horizontal side of the triangular support framel=0.6 to 0.7B, vertical edge heighth=0.4 to 0.5B, wherein the triangular support frame is made of 1Cr18Ni9Ti heat-resistant stainless steel; the U-shaped steel plate is made of 1Cr18Ni9Ti heat-resistant stainless steel; temperature of use of the outer ceramic fiber sheet>800 ℃; the inner ceramic fiber board and the outer ceramic fiber board are made of the same material; the service temperature of the slag wool>600℃。
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects:
before the furnace lining is poured, the opening direction of the U-shaped supporting plate faces the inner wall of the furnace shell and is welded with the inner wall of the furnace shell, and the vertical edge of the triangular supporting frame is welded on the inner wall of the furnace shell. The support supporting plate for the coal gasification furnace pre-installed on the inner wall of the furnace shell can support the weight of the lining material of the upper part, has the function of a temporary scaffold and is beneficial to construction.
The U-shaped steel plate and the outer ceramic fiber plate can absorb stress generated by thermal expansion of different materials at high temperature, improve the thermal shock resistance of a furnace lining material, and effectively avoid resonance generated when the pulsation frequency of a medium moving at high speed is close to the inherent frequency of a furnace body; meanwhile, the outer ceramic fiber plate and the inner ceramic fiber plate enable the U-shaped steel plate to bear temperature reduction, deformation is prevented, and the service life of the U-shaped steel plate is prolonged. The invention forms a frame structure with the coal gasifier shell and the pre-embedded anchoring piece, thereby improving the anti-vibration capability of the coal gasifier.
Therefore, the invention can not only improve the vibration resistance and the thermal shock resistance of the furnace body and prolong the service life of the furnace lining, but also bear the weight of the upper furnace lining material during construction.
Drawings
FIG. 1 is a schematic structural view of a support pallet for a coal gasification furnace according to the present invention;
FIG. 2 isbase:Sub>A schematic sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of the U-shaped steel plate of fig. 1.
Detailed Description
The invention is further described in the following description with reference to the figures and the detailed description, without limiting the scope of protection.
Example 1
A supporting pallet for a coal gasification furnace. The supporting plate for the coal gasification furnace is composed of a U-shaped supporting plate 1 and 2 triangular supporting frames 6 as shown in figures 1 and 2. The triangular support frame 6 is symmetrically fixed on the lower plane of the two sides of the U-shaped support plate 1, and the vertical edge of the triangular support frame 6 and the opening edge of the U-shaped support plate 1 are in the same vertical plane.
As shown in fig. 1 and 2, the U-shaped support plate 1 includes an outer ceramic fiber plate 2, a U-shaped steel plate 3, an inner ceramic fiber plate 4, and slag wool 5. An outer ceramic fiber plate 2 is pasted on the outer surface of the U-shaped steel plate 3, an inner ceramic fiber plate 4 is pasted on the inner surface of the U-shaped steel plate 3, and a U-shaped cavity formed by the inner ceramic fiber plate 4 is filled with mineral wool 5.
As shown in fig. 3, the cross-sectional shape of the U-shaped steel plate 3 is "U", and the dimensions of the U-shaped steel plate 3 are, length B =100 to 150mm, width L =300 to 400mm, and height H =30 to 60mm; the thickness of the outer ceramic fiber board 2 and the thickness of the inner ceramic fiber board 4 are both 10 to 20mm.
As shown in figures 1 and 2, the triangular support frame 6 is formed by welding three L-shaped steels into a right triangle, wherein the horizontal sides of the three L-shaped steels are longl=0.6 to 0.65B and the height of the vertical edgeh=0.4~0.45B。
In this embodiment: the triangular support frame 6 is made of 1Cr18Ni9Ti heat-resistant stainless steel; the U-shaped steel plate 3 is made of 1Cr18Ni9Ti heat-resistant stainless steel; the service temperature of the outer ceramic fiber plate 2 is more than 800 ℃; the inner ceramic fiber plate 4 and the outer ceramic fiber plate 2 are made of the same material; the use temperature of the slag wool 5 is >600 ℃.
Example 2
A supporting pallet for a coal gasification furnace. Example 1 was followed, except for the following parameters:
the external dimension of the U-shaped steel plate 3 is that the length B =140 to 180mm, the width L =400 to 500mm, and the height H =50 to 80mm; the thickness of the outer ceramic fiber plate 2 and the thickness of the inner ceramic fiber plate 4 are both 20 to 30mm.
The length of the horizontal edge of the triangular support frame 6l=0.65 to 0.7B, vertical edge heighth=0.45~0.5B。
Compared with the prior art, the specific implementation mode has the following positive effects: in the specific embodiment, before the furnace lining is poured, the opening direction of the U-shaped support plate 1 faces the inner wall of the furnace shell and is welded with the inner wall of the furnace shell, and the vertical edge of the triangular support frame 6 is welded on the inner wall of the furnace shell. The support supporting plate for the coal gasification furnace pre-installed on the inner wall of the furnace shell can support the weight of the lining material of the upper part, has the function of a temporary scaffold and is beneficial to construction.
The U-shaped steel plate 3 and the outer ceramic fiber plate 2 of the specific embodiment can absorb stress generated by thermal expansion of different materials at high temperature, improve the thermal shock resistance of a furnace lining material, and effectively avoid resonance generated when the pulsation frequency of a medium moving at high speed is close to the natural frequency of a furnace body; meanwhile, the outer ceramic fiber plate 2 and the inner ceramic fiber plate 4 enable the U-shaped steel plate 3 to bear temperature reduction, prevent deformation and prolong the service life of the U-shaped steel plate. The concrete embodiment forms a frame structure with the coal gasifier furnace shell and the pre-buried anchoring piece, and improves the anti-vibration capability of the coal gasifier.
Therefore, the specific embodiment can not only improve the vibration resistance and the thermal shock resistance of the furnace body and prolong the service life of the furnace lining, but also bear the weight of the upper furnace lining material during construction.
Claims (5)
1. A supporting pallet for a coal gasification furnace is characterized by consisting of a U-shaped supporting plate (1) and 2 triangular supporting frames (6); the triangular support frames (6) are symmetrically fixed on the lower planes of the two sides of the U-shaped support plate (1), and the vertical edge of the triangular support frame (6) and the opening edge of the U-shaped support plate (1) are in the same vertical plane;
the U-shaped supporting plate (1) comprises an outer ceramic fiber plate (2), a U-shaped steel plate (3), an inner ceramic fiber plate (4) and mineral wool (5); an outer ceramic fiber plate (2) is pasted on the outer surface of the U-shaped steel plate (3), an inner ceramic fiber plate (4) is pasted on the inner surface of the U-shaped steel plate (3), and slag wool (5) is filled in a U-shaped cavity formed by the inner ceramic fiber plate (4);
the cross section of the U-shaped steel plate (3) is U-shaped, the external dimension of the U-shaped steel plate (3) is that the length B = 100-180 mm, the width L = 300-500 mm, and the height H = 30-80 mm; the thickness of the outer ceramic fiber plate (2) and the thickness of the inner ceramic fiber plate (4) are both 10-30 mm.
2. The supporting pallet for the coal gasification furnace according to claim 1, characterized in that the triangular supporting frame (6) is a right triangle welded by three L-shaped steels, wherein the length of the horizontal side L = 0.6-0.7B, and the height h of the vertical side h = 0.4-0.5B; the triangular support frame (6) is made of 1Cr18Ni9Ti heat-resistant stainless steel.
3. The supporting pallet for a coal gasification furnace according to claim 1, wherein the U-shaped steel plate (3) is made of 1Cr18Ni9Ti heat-resistant stainless steel.
4. The support pallet for a coal gasification furnace according to claim 1, characterized in that the outer ceramic fiber plate (2) has a service temperature >800 ℃; the inner ceramic fiber board (4) and the outer ceramic fiber board (2) are made of the same material.
5. The support pallet for a coal gasification furnace according to claim 1, characterized in that the usage temperature of the slag wool (5) is >600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267586.1A CN106906003B (en) | 2017-04-21 | 2017-04-21 | Supporting plate for coal gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267586.1A CN106906003B (en) | 2017-04-21 | 2017-04-21 | Supporting plate for coal gasification furnace |
Publications (2)
| Publication Number | Publication Date |
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| CN106906003A CN106906003A (en) | 2017-06-30 |
| CN106906003B true CN106906003B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710267586.1A Active CN106906003B (en) | 2017-04-21 | 2017-04-21 | Supporting plate for coal gasification furnace |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411621A (en) * | 1980-12-05 | 1983-10-25 | Miller Thomas M | Furnace wall construction |
| ZA823216B (en) * | 1981-05-20 | 1983-03-30 | Uss Eng & Consult | Insulation for a furnace member |
| CN202066371U (en) * | 2011-03-01 | 2011-12-07 | 惠生工程（中国）有限公司 | Brick supporting plate of heating furnace |
| CN203586817U (en) * | 2013-11-08 | 2014-05-07 | 河南省宏达炉业有限公司 | Reinforced refractory material lining anchoring nail |
| CN204648953U (en) * | 2015-05-27 | 2015-09-16 | 苏州伊索来特耐火纤维有限公司 | A kind of ceramic fiber sewing clock installing rack |
| CN105403052A (en) * | 2015-12-30 | 2016-03-16 | 宜兴市炉顶密封工程有限公司 | Combination anchoring piece with armor resistant to thermal stress |
| CN206736187U (en) * | 2017-04-21 | 2017-12-12 | 武汉科技大学 | A kind of anti-vibration for coal gasifier supports supporting plate |
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2017
- 2017-04-21 CN CN201710267586.1A patent/CN106906003B/en active Active
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| CN106906003A (en) | 2017-06-30 |
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