CN113897223A - Brick structure of burner chamber and coal water slurry gasification furnace - Google Patents
Brick structure of burner chamber and coal water slurry gasification furnace Download PDFInfo
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- CN113897223A CN113897223A CN202111120306.7A CN202111120306A CN113897223A CN 113897223 A CN113897223 A CN 113897223A CN 202111120306 A CN202111120306 A CN 202111120306A CN 113897223 A CN113897223 A CN 113897223A
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- brick
- brick structure
- burner
- chamber
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
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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
- C10J3/72—Other features
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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)
Abstract
The invention relates to the technical field of coal gasification, and discloses a brick structure of a burner chamber and a coal water slurry gasification furnace, wherein the brick structure of the burner chamber comprises a first brick structure arranged on the inner wall of the burner chamber, the first brick structure is close to a combustion chamber of a cylinder body and comprises an upper layer brick structure and a lower layer brick structure, the upper layer brick structure is provided with a gradually expanding opening facing towards the combustion chamber, an included angle between the inner side surface of the gradually expanding opening and the central axis of the burner chamber is smaller than 11 degrees and comprises 0 degree, the lower layer brick structure is provided with a gradually expanding opening facing towards the combustion chamber, and an included angle between the inner side surface of the gradually expanding opening and the central axis of the burner chamber is smaller than 11 degrees. The brick structure of the burner chamber can prevent slag, carbon residue or other impurities from flowing back into the burner chamber, so that the service life of the burner is prolonged.
Description
Technical Field
The invention relates to the technical field of coal gasification, in particular to a brick structure of a burner chamber and a coal water slurry gasification furnace.
Background
The refractory lining of the coal water slurry gasification furnace is mostly of a refractory brick structure. The refractory material is one of the most important constituent elements of the entrained flow gasifier, and plays an important role in isolating high temperature, heat accumulation, flow field constraint and the like. The structure of the refractory brick is severely scoured and eroded by high-temperature airflow and particles while constructing an effective space in the gasification furnace. The severe working environment causes the corrosion of the refractory materials in the furnace, and the service life of the refractory brick is shortened.
Burner blocks are key components of refractory linings of various gasifiers. The gasified raw material and the gasifying agent sprayed from the burner are combusted and gasified at the nozzle of the burner, the shape and the outlet size of the burner block determine the shape and the spraying speed of flame, and the service life of the burner block depends on the flow field distribution at the nozzle. In general, the burner liner is composed of four symmetrical firebricks, and the inner side of the firebrick close to the combustion chamber is mostly in an arc structure, so that a larger space exists at the end part of the burner. During operation of the gasifier, molten slag generated by the dome of the gasifier and the upper cylinder of the gasifier easily flows back into the low-temperature area of the refractory bricks of the burner chamber to form solid deposits, which may cause the risk that oxygen ejected from the burner flows back to erode the refractory bricks of the burner channel.
The peripheral resistant firebrick structure of nozzle is complicated, and a large amount is more, has a large amount of resistant firebrick lime mortar gaps, and the erosion process of the resistant firebrick that is close to gasifier pressure-bearing side is the gas of scurring back, and the coal ash granule flows back to the erosion that resistant firebrick lime mortar gap caused, optimizes resistant firebrick structure and is crucial to the life who prolongs resistant firebrick.
Disclosure of Invention
The invention aims to solve the problem that a firebrick is damaged due to a firebrick structure in a burner chamber in the prior art, and provides the brick structure of the burner chamber and a coal water slurry gasification furnace.
In order to achieve the above object, the present invention provides a brick structure of a burner chamber, including a first brick structure mounted on an inner wall of the burner chamber, the first brick structure is close to a combustion chamber of a barrel and includes an upper brick structure and a lower brick structure, the upper brick structure has a gradually expanding opening facing the combustion chamber, an included angle between an inner side surface of the gradually expanding opening and a central axis of the burner chamber is less than 11 ° and includes 0 °, the lower brick structure has a gradually expanding opening facing the combustion chamber, and an included angle between the inner side surface of the gradually expanding opening and the central axis of the burner chamber is less than 11 °.
Optionally, the first brick structure is in a hollow ring shape and includes four refractory bricks, wherein the upper brick structure includes two mirror-symmetrical refractory bricks, and the lower brick structure includes two mirror-symmetrical refractory bricks.
Optionally, the upper layer of brick structure is integrated with the adjacent layer of cylindrical brick, and the lower layer of brick structure is integrated with the adjacent layer of cylindrical brick.
Optionally, the brick materials in the brick structure of the burner chamber are all high chrome bricks.
Optionally, the brick structure of the burner chamber comprises a second brick structure mounted on the inner wall of the burner chamber, and the second brick structure is hollow and annular; and in the burner chamber, one side of the second brick structure is arranged adjacent to the first brick structure, and the other side of the second brick structure is parallel to the outer wall of the combustion chamber.
Optionally, the inner side surface of the first brick structure and the inner side surface of the second brick structure are aligned with each other, and central axes of the first brick structure and the second brick structure are located on a central axis of the burner chamber.
Optionally, the gap between the second tile structure and the first tile structure is less than 1.2 mm.
Optionally, the second brick structure and the first brick structure are filled with mud ash.
In another aspect, the invention provides a coal water slurry gasification furnace comprising the brick structure of the burner chamber.
Optionally, the coal-water slurry gasification furnace comprises a cooling piece installed on the outer wall of the burner chamber.
Optionally, the cooling member is jacketed on the outer wall of the burner chamber.
By the technical scheme, the invention has the following beneficial effects;
in order to facilitate the installation of the burner block, reduce strength loss and surface damage caused by the cutting of refractory bricks, close upper brick structure and its adjacent one deck barrel brick as an organic whole, and close lower floor's brick structure and its adjacent one deck barrel brick as an organic whole, the medial surface of upper brick structure is less than 11 and the contained angle of axis contained angle of burner chamber and includes 0 to the injection angle of accuse material, namely, the injection direction of material is level or low-angle ejection, avoids the material to spout the top of the combustion chamber inner wall. Therefore, the materials can not be combusted above the horizontal plane higher than the central axis of the burner chamber, so that other impurities such as molten slag, carbon residue and the like can not be formed at the top of the inner wall of the burner chamber, and the phenomenon that the other impurities such as the molten slag, the carbon residue and the like flow back into the burner chamber to wash the brick structure of the burner chamber is avoided. The lower floor's brick structure has the orientation the flaring of gradually of combustion chamber, the injection angle of further control material not only lets the injection angle of material keep flaring shape, makes the material fully react in the combustion chamber, lets the material react in the middle part and the lower part of combustion chamber moreover, avoids other impurity such as slag, the carbon residue of melt state to flow back to in the nozzle chamber.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
In the drawings:
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Drawings
FIG. 1 is a schematic view of one embodiment of a brick construction of a burner chamber of the present invention;
FIG. 2 is a schematic view of a first tile construction of the present invention;
FIG. 3 is a top plan view of the lower layer brick construction of the first brick construction of FIG. 2;
figure 4 is a bottom view of the upper layer of tile structure of the first tile structure of figure 2.
Description of the reference numerals
1-a first brick structure, 2-a second brick structure, 11-an upper layer brick structure and 12-a lower layer brick structure.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1 and 2, the brick structure of the burner chamber in the present invention includes a first brick structure 1 installed on an inner wall of the burner chamber, the first brick structure 1 is close to the combustion chamber of the barrel and includes an upper brick structure 11 and a lower brick structure 12, the upper brick structure 11 has a gradually expanding opening facing the combustion chamber, an included angle between an inner side surface of the gradually expanding opening and a central axis of the burner chamber is less than 11 ° and includes 0 °, and the lower brick structure 12 has a gradually expanding opening facing the combustion chamber, and an included angle between the inner side surface of the gradually expanding opening and the central axis of the burner chamber is less than 11 °.
As shown in fig. 1, fig. 2 and fig. 4, the inner side of the upper layer brick structure 11 is less than 11 degrees and the included angle includes 0 degree with the central axis included angle of the burner chamber, so as to control the injection angle of the material, i.e. the injection direction of the material is horizontal ejection, and avoid the material from being injected to the inner wall of the top of the combustion chamber, therefore, the material can not be combusted above the horizontal plane higher than the central axis of the burner chamber, so that molten slag, carbon residue and other impurities and the like can not be formed at the top of the inner wall of the combustion chamber, thereby avoiding the molten slag, carbon residue and other impurities and the like from flowing back to the burner chamber, and forming solid accumulation in the low-temperature area of the burner chamber.
As shown in fig. 1, 2 and 3, the lower brick structure 12 has a gradually expanding opening facing the combustion chamber, and further controls the injection angle of the material, so that the injection angle of the material is kept gradually expanding, the material can fully react in the combustion chamber, and the reaction space of the material is located at the middle part and the lower part of the combustion chamber, thereby preventing molten slag, carbon residue and other impurities from flowing back into the burner chamber.
In summary, the upper layer brick structure 11 and the lower layer brick structure 12 are integrated with the adjacent layer of the barrel brick, so that the cutting number in the installation process of the barrel brick is reduced, the service life of the brick structures is prolonged, the service life of the combustor is prolonged, the operation cycle of the whole production line is prolonged, and particularly, in the aspect of saving cost, frequent replacement and maintenance of the burner chamber are avoided, wherein in the replacement and maintenance process, the requirement on the installation precision of the brick structures of the burner chamber is high, the difficulty in installation and disassembly of the combustor is high, and the waste of cost is increased.
As shown in fig. 2, the first brick structure 1 of the present invention is in a hollow ring shape and comprises four refractory bricks, wherein the upper brick structure 11 comprises two mirror-symmetrical refractory bricks, and the lower brick structure 12 comprises two mirror-symmetrical refractory bricks.
In the invention, the brick structures of the burner chamber are all made of high-chrome bricks, and in order to meet the actual requirements, the first brick structure 1 can be a high-chrome brick, and the second brick structure 2 can be a chrome corundum brick.
As shown in fig. 1, the brick structure of the burner chamber in the present invention includes a second brick structure 2 mounted on an inner wall of the burner chamber, and the second brick structure 2 is a hollow ring; in the burner chamber, one side of the second brick structure 2 is arranged adjacent to the first brick structure 1, and the other side of the second brick structure is parallel to the outer wall of the combustion chamber. On the axis of nozzle chamber and dorsad in the direction at the center of combustion chamber, the brick structure of nozzle chamber is first brick structure 1 in proper order, second brick structure 2 and other brick structures, however, the brick structure that is located the combustion chamber only has first brick structure 1 and second brick structure 2, the quantity of brick structure has been reduced, thereby the complexity between the brick structure has been reduced, namely, the gap between the brick structure reduces, avoid the gas of scurrying back, coal ash granule etc. flow back to the gap between the brick structure and cause and corrode the brick structure, consequently, reduce the risk that the brick structure was eroded.
As shown in fig. 1, the inner side surface of the first brick structure 1 and the inner side surface of the second brick structure 2 in the invention are aligned with each other, and the central axes of the two are located on the central axis of the burner chamber. Avoid material or backflow gas to erode second brick structure 2 and first brick structure 1, influence the life of burner chamber.
As shown in fig. 1, the gap between the second brick structure 2 and the first brick structure 1 in the invention is smaller than 1.2mm, and even if backflow gas or coal ash particles flow back into the burner chamber, the brick structures cannot be eroded due to the small gap between the brick structures. The second brick structure 2 with it has the marl to fill between the first brick structure 1, even gapped between the brick structure, through filling the marl, avoid the clearance to be washed away by the gas or the coal ash granule that flow back, lead to the clearance increase, influence the life of nozzle chamber.
The coal water slurry gasification furnace comprises the brick structure of the burner chamber, the inner side surface of the upper layer brick structure 11 is parallel to the central axis of the burner chamber on the inner wall of the burner chamber, the lower layer brick structure 12 is provided with a gradually expanding opening facing the combustion chamber, the included angle between the inner side surface of the gradually expanding opening and the central axis of the burner chamber is smaller than 11 degrees, the purpose is to prevent molten slag generated in the vault of the combustion chamber and the upper cylinder body of the combustion chamber from flowing back into the burner chamber, solid accumulation is formed in the low-temperature area of the brick structure in the burner chamber, the situation that oxygen sprayed by a burner flows back and erodes the brick structure in the burner chamber is avoided, the strength of the brick structure is enhanced, and the erosion of gas and ash particles to the brick structure is slowed down.
Wherein, in the nozzle chamber, one side and the adjacent installation of first brick structure 1 of second brick structure 2, its opposite side is parallel with the outer wall of combustion chamber, the indoor brick structure of nozzle has been optimized to such mounting means, the complexity of brick structure has been reduced, the quantity of brick has been reduced, avoid having a large amount of gaps between the indoor brick structure of nozzle, let brick structure have the risk of being eroded, thereby prevent gas and the coal ash granule of scurring and flow back to the clearance between the brick structure, cause the erosion to brick structure, especially be close to the brick structure of gasifier pressure-bearing side.
The coal water slurry gasification furnace comprises a cooling piece arranged on the outer wall of the burner chamber, and the cooling piece is sleeved on the outer wall of the burner chamber. Wherein, the cooling piece is cooling coil, and cooling coil cools off the nozzle chamber through recirculated cooling water passageway to reduce the temperature in the gasifier nozzle chamber, reached promptly and strengthened nozzle cooling water cooling effect, improved cooling efficiency. The jacket cooling structure that cooling coil passed through is installed on the outer wall of nozzle chamber, simplifies the installation of cooling coil on the nozzle, has reduced cooling coil's the installation degree of difficulty, is favorable to cooling coil installation and dismantlement on the nozzle.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (11)
1. The utility model provides a brick structure of nozzle chamber, its characterized in that, is including installing first brick structure (1) on the inner wall of nozzle chamber, first brick structure (1) are close to the combustion chamber of barrel and include upper brick structure (11) and lower floor's brick structure (12), upper brick structure (11) have the orientation the gradually expand mouth of combustion chamber and this gradually expand the medial surface of mouth with the axis contained angle of nozzle chamber is less than 11 and the contained angle includes 0, lower floor's brick structure (12) have the orientation the gradually expand mouth of combustion chamber and this gradually expand the medial surface of mouth with the axis contained angle of nozzle chamber is less than 11.
2. A burner chamber brick construction according to claim 1, characterized in that the first brick construction (1) is hollow and ring-shaped and comprises four refractory bricks, wherein the upper brick construction (11) comprises two mirror-symmetrical refractory bricks and the lower brick construction (12) comprises two mirror-symmetrical refractory bricks.
3. A burner block construction according to claim 1, wherein the upper layer of brick construction (11) is integral with an adjacent layer of barrel bricks and the lower layer of brick construction (12) is integral with an adjacent layer of barrel bricks.
4. The burner block construction of claim 1 wherein the brick material in the burner block construction is high chrome brick.
5. A burner chamber brick construction according to claim 1, characterized in that the burner chamber brick construction comprises a second brick construction (2) mounted on the inner wall of the burner chamber, the second brick construction (2) being in the shape of a hollow ring;
and in the burner chamber, one side of the second brick structure (2) is arranged adjacent to the first brick structure (1), and the other side of the second brick structure is parallel to the outer wall of the combustion chamber.
6. A burner block construction according to claim 5, characterized in that the inner side of the first block construction (1) and the inner side of the second block construction (2) are aligned with each other and the central axes thereof are located on the central axis of the burner block.
7. A burner chamber brick construction according to claim 5, characterized in that the gap between the second brick construction (2) and the first brick construction (1) is less than 1.2 mm.
8. A burner block construction according to claim 5, characterized in that between the second brick construction (2) and the first brick construction (1) is filled with lime mud.
9. A coal-water slurry gasifier comprising a brick structure of a burner chamber according to any one of claims 1 to 8.
10. The coal-water slurry gasification furnace according to claim 9, comprising a cooling member installed on an outer wall of the burner chamber.
11. The coal-water slurry gasification furnace according to claim 10, wherein the cooling member is jacketed on an outer wall of the burner chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111120306.7A CN113897223B (en) | 2021-09-24 | 2021-09-24 | Brick structure of burner chamber and coal water slurry gasification furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111120306.7A CN113897223B (en) | 2021-09-24 | 2021-09-24 | Brick structure of burner chamber and coal water slurry gasification furnace |
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| CN113897223A true CN113897223A (en) | 2022-01-07 |
| CN113897223B CN113897223B (en) | 2022-11-25 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441750A (en) * | 1973-02-16 | 1976-07-07 | British Gas Corp | Gas burners |
| EP0225146A2 (en) * | 1985-11-29 | 1987-06-10 | The Dow Chemical Company | Two-stage coal gasification process |
| EP2006357A1 (en) * | 2007-06-22 | 2008-12-24 | Shell Internationale Researchmaatschappij B.V. | Gasification reactor with cooled shield around burner |
| US20100180806A1 (en) * | 2009-01-22 | 2010-07-22 | General Electric Company | Refractory Brick and Tapered Mortar Joint |
| CN102433162A (en) * | 2011-05-06 | 2012-05-02 | 华东理工大学 | Entrained-flow bed gasifier with staged oxygen feeding and gasification method thereof |
| CN202379959U (en) * | 2012-01-11 | 2012-08-15 | 山东兖矿国拓科技工程有限公司 | Preheating mouth plugging brick of gasification furnace |
| CN103014211A (en) * | 2013-01-17 | 2013-04-03 | 陈维汉 | Combustion device in orthogonally jetting and mixing accumulator of flat nozzle |
| WO2014106383A1 (en) * | 2013-01-07 | 2014-07-10 | 重庆赛迪工业炉有限公司 | Air and gas double-heat-accumulation combustion device |
| CN103937555A (en) * | 2014-04-30 | 2014-07-23 | 华东理工大学 | Single-nozzle water-coal-slurry entrained-flow bed gasifier and gasification method of same |
| CN207035838U (en) * | 2017-08-18 | 2018-02-23 | 中钢集团耐火材料有限公司 | A kind of inner lining apparatus of gasification furnace burner hearth |
| US20180371340A1 (en) * | 2015-12-16 | 2018-12-27 | Air Products And Chemicals Inc. | Gasification system and process |
| CN208594250U (en) * | 2018-07-19 | 2019-03-12 | 洛阳利尔耐火材料有限公司 | A kind of novel gasification furnace burner room brick structure |
-
2021
- 2021-09-24 CN CN202111120306.7A patent/CN113897223B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441750A (en) * | 1973-02-16 | 1976-07-07 | British Gas Corp | Gas burners |
| EP0225146A2 (en) * | 1985-11-29 | 1987-06-10 | The Dow Chemical Company | Two-stage coal gasification process |
| EP2006357A1 (en) * | 2007-06-22 | 2008-12-24 | Shell Internationale Researchmaatschappij B.V. | Gasification reactor with cooled shield around burner |
| US20100180806A1 (en) * | 2009-01-22 | 2010-07-22 | General Electric Company | Refractory Brick and Tapered Mortar Joint |
| CN102433162A (en) * | 2011-05-06 | 2012-05-02 | 华东理工大学 | Entrained-flow bed gasifier with staged oxygen feeding and gasification method thereof |
| CN202379959U (en) * | 2012-01-11 | 2012-08-15 | 山东兖矿国拓科技工程有限公司 | Preheating mouth plugging brick of gasification furnace |
| WO2014106383A1 (en) * | 2013-01-07 | 2014-07-10 | 重庆赛迪工业炉有限公司 | Air and gas double-heat-accumulation combustion device |
| CN103014211A (en) * | 2013-01-17 | 2013-04-03 | 陈维汉 | Combustion device in orthogonally jetting and mixing accumulator of flat nozzle |
| CN103937555A (en) * | 2014-04-30 | 2014-07-23 | 华东理工大学 | Single-nozzle water-coal-slurry entrained-flow bed gasifier and gasification method of same |
| US20180371340A1 (en) * | 2015-12-16 | 2018-12-27 | Air Products And Chemicals Inc. | Gasification system and process |
| CN207035838U (en) * | 2017-08-18 | 2018-02-23 | 中钢集团耐火材料有限公司 | A kind of inner lining apparatus of gasification furnace burner hearth |
| CN208594250U (en) * | 2018-07-19 | 2019-03-12 | 洛阳利尔耐火材料有限公司 | A kind of novel gasification furnace burner room brick structure |
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| CN113897223B (en) | 2022-11-25 |
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