Water coal slurry gasifier furnace brick with quick release mechanism

Abstract

The application provides a water coal slurry gasifier furnace brick with a quick release mechanism, and relates to the field of gasifier furnace bricks. The water coal slurry gasifier furnace brick comprises a furnace body, a heat insulation layer is arranged on the furnace body, a brick supporting plate is arranged on the heat insulation layer, the upper surface of the brick supporting plate is arranged in a stepped manner, refractory bricks and connecting bricks are arranged on the upper surface of the brick supporting plate, a slag port brick is arranged on the bottom wall of the furnace body, the slag port brick is in contact with the brick supporting plate, the connecting brick is composed of a first fixed brick and a second fixed brick, the first fixed brick is arranged on the upper surface of the joint between the slag port brick and the brick supporting plate, and a first embedding groove is arranged on the upper surface of the slag port brick. The convex-convex matching of the embedding protrusions and the embedding grooves is used to realize the mortise-and-tenon connection of the bricks, the accurate positioning can be completed by embedding the bricks layer by layer during installation, the center line needs not to be drawn and aligned by manual work, and the installation difficulty and the dependence on the experience of the workers are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of gasifier furnace bricks, and more specifically, to a coal-water slurry gasifier furnace brick with a quick-release mechanism. Background Technology

[0002] The existing coal-water slurry gasifier's furnace brick structure has revealed significant maintenance shortcomings during long-term operation. Firstly, regarding maintenance cycles, the inner walls of the furnace bricks are subjected to constant erosion from high-temperature molten slag and chemical corrosion, requiring periodic shutdowns for replacement. The current dismantling process relies entirely on manual removal of each brick individually, lacking a modular, overall lifting design. This results in maintenance cycles lasting several weeks, severely restricting the gasifier's online rate.

[0003] Secondly, in terms of installation accuracy control, the brick splicing still uses the traditional manual center line alignment process, and there is a lack of limiting structure for the concave and convex fit between the bricks. This not only makes the masonry accuracy dependent on the experience of the operators, but also makes it very easy for radial misalignment to occur under the action of high temperature thermal stress, causing local "air penetration" phenomenon and exacerbating the risk of shell overheating.

[0004] More importantly, the current furnace bricks are all made of the same type and height of chrome bricks laid flat and spliced ​​together. The reserved expansion joints are vertical straight joints that run through the top and bottom. This structure forms a direct channel for molten slag to seep in under high temperature conditions. After the liquid slag seeps in along the through joints, it erodes the sides of the bricks, resulting in a serious uneven rate of corrosion between adjacent bricks. In actual operation, the excessive wear of just a few bricks often forces the entire expensive chrome brick furnace lining to be scrapped prematurely, which greatly increases the full life cycle operation and maintenance cost of the gasifier. In view of this, we have proposed a furnace brick for a water-coal slurry gasifier with a quick disassembly mechanism. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the current rotation splicing process is difficult and relies heavily on the experience of the operators.

[0006] To achieve the above-mentioned objectives and improve the aforementioned problems, this utility model provides a coal-water slurry gasification furnace brick with a quick-release mechanism, comprising a furnace body, an insulation layer on the furnace body, a brick support plate on the insulation layer, the upper surface of the brick support plate being stepped, and refractory bricks and connecting bricks on the upper surface of the brick support plate. The bottom wall of the furnace body is provided with a slag opening brick, which contacts the brick support plate. The connecting brick is composed of a first fixing brick and a second fixing brick. The first fixing brick is located on the upper surface of the joint between the slag opening brick and the brick support plate. A first embedding groove is formed on the upper surface of the slag opening brick, and a second embedding groove and a third embedding groove are formed on the upper surfaces of the first fixing brick and the second fixing brick, respectively.

[0007] As a preferred technical solution of this application, the refractory brick is composed of corner bricks, inclined bricks and ring bricks. The upper surfaces of the corner bricks and inclined bricks are inclined. The corner bricks are located on the upper surfaces of the slag outlet bricks and the first fixed bricks.

[0008] As a preferred technical solution of this application, the lower surface of the corner brick is fixedly connected with a first embedding protrusion and a second embedding protrusion, and the first embedding protrusion fits into the first embedding groove.

[0009] As a preferred technical solution of this application, the inclined brick is located on the upper surface of the brick support plate and the first fixed brick.

[0010] As a preferred technical solution of this application, the lower surface of the inclined brick is also set in a stepped shape, and the lower surface of the inclined brick fits with the upper surface of the brick support plate.

[0011] As a preferred technical solution of this application, the lower surface of the inclined brick is also fixed with a second embedded protrusion, and the two second embedded protrusions fit into the second embedded groove.

[0012] As a preferred technical solution of this application, the second fixing brick is located on the upper surface of the brick support plate and the inclined brick, the annular brick is located on the upper surface of the second fixing brick, and a third embedded protrusion is fixed on the lower surface of the annular brick.

[0013] As a preferred technical solution of this application, the third embedding protrusion fits into the third embedding groove, and the upper surface of the annular brick is also provided with a third embedding groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. Through the cooperation between the furnace body, insulation layer, brick support plate, refractory brick, slag mouth brick, first fixed brick, second fixed brick, first embedded groove, second embedded groove, third embedded groove, corner brick, inclined brick, ring brick, first embedded protrusion, second embedded protrusion, and third embedded protrusion, each brick is connected by mortise and tenon joints through the concave and convex fit between the embedded protrusion and the embedded groove. During installation, each brick only needs to be embedded layer by layer to complete the precise positioning. There is no need to rely on manual center line alignment, which effectively reduces the installation difficulty and the dependence on the experience of the operators. 2. Through the cooperation between the furnace body, insulation layer, brick support plate, refractory bricks, connecting bricks, slag mouth bricks, first fixed bricks, second fixed bricks, corner bricks, inclined bricks, and ring bricks, the stepped arrangement on the upper surface of the brick support plate makes the brick joints non-linear and continuous. Combined with the staggered overlapping structure between each brick, it effectively blocks the channel for molten slag to directly seep in along the joints, reduces the erosion of the brick sides by molten slag, makes the erosion rate of each brick tend to be uniform, and extends the overall service life of the entire set of furnace bricks. At the same time, during disassembly, each brick can be removed in sequence by simply unfastening the embedded fit layer by layer, without having to knock them off one by one, thus realizing the quick disassembly function. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the coal-water slurry gasifier bricks with a quick-release mechanism provided in this application; Figure 2 A schematic diagram illustrating the decomposition of refractory bricks in the furnace bricks of a coal-water slurry gasifier with a quick-release mechanism, provided in this application. Figure 3 A schematic diagram of the refractory brick area in the furnace bricks of the coal-water slurry gasifier with a quick-release mechanism provided in this application. Figure 4 This is a schematic diagram of the area structure of the connecting bricks in the furnace bricks of the coal-water slurry gasifier with a quick-release mechanism provided in this application.

[0016] The image shows: 1. Furnace body; 2. Insulation layer; 3. Supporting brick plate; 4. Refractory brick; 5. Connecting brick; 6. Slag opening brick; 7. First fixing brick; 8. Second fixing brick; 9. First embedding groove; 10. Second embedding groove; 11. Third embedding groove; 12. Corner brick; 13. Sloping brick; 14. Annular brick; 15. First embedding protrusion; 16. Second embedding protrusion; 17. Third embedding protrusion. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] Example 1 Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A coal-water slurry gasification furnace brick with a quick-release mechanism includes a furnace body 1, a heat insulation layer 2 on the furnace body 1, a brick support plate 3 on the heat insulation layer 2, the upper surface of the brick support plate 3 is stepped, the upper surface of the brick support plate 3 is provided with refractory bricks 4 and connecting bricks 5, the bottom wall of the furnace body 1 is provided with slag opening bricks 6, the slag opening bricks 6 are in contact with the brick support plate 3, the connecting bricks 5 are composed of a first fixing brick 7 and a second fixing brick 8, the first fixing brick 7 is located on the upper surface of the joint between the slag opening brick 6 and the brick support plate 3, the upper surface of the slag opening brick 6 is provided with a first embedding groove 9, and the upper surfaces of the first fixing brick 7 and the second fixing brick 8 are respectively provided with a second embedding groove 10 and a third embedding groove 11.

[0022] The heat insulation layer 2 can reduce the impact of the temperature inside the furnace body 1 on the inner wall of the furnace body 1. At the same time, the gradient shape of the upper surface of the brick support plate 3 can reduce the straight joints of the bricks and reduce the impact on the sides of the bricks. The gradient design also makes it easier for workers to connect and install the bricks, reducing the difficulty of positioning. Furthermore, the mortise and tenon joints of the refractory bricks 4 can be achieved through the cooperation of the first fixing brick 7 and the second fixing brick 8, which can improve the connection strength and further reduce the straight joints and positioning difficulty.

[0023] Example 2 The furnace bricks of the water-coal slurry gasifier with a quick-release mechanism provided in Example 1 are further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the refractory brick 4 is composed of corner bricks 12, inclined bricks 13, and ring bricks 14. The upper surfaces of both corner bricks 12 and inclined bricks 13 are inclined. Corner bricks 12 are located on the upper surface of slag mouth bricks 6 and the first fixed brick 7. The lower surface of corner bricks 12 is fixedly connected with a first embedded protrusion 15 and a second embedded protrusion 16. The first embedded protrusion 15 fits into the first embedded groove 9. Inclined bricks 13 are located on the upper surface of brick support plate 3 and the first fixed brick 7. The lower surface of inclined bricks 13 is also stepped. The lower surface of brick 13 fits into the upper surface of brick support plate 3. The lower surface of inclined brick 13 is also fixed with a second embedded protrusion 16. The two second embedded protrusions 16 fit into the second embedded groove 10. The second fixed brick 8 is located on the upper surface of brick support plate 3 and inclined brick 13. The annular brick 14 is located on the upper surface of the second fixed brick 8. The lower surface of the annular brick 14 is fixed with a third embedded protrusion 17. The third embedded protrusion 17 fits into the third embedded groove 11. The upper surface of the annular brick 14 is also provided with a third embedded groove 11.

[0024] By using protrusions and embedded grooves to fit corner bricks 12, inclined bricks 13, ring bricks 14, first fixed bricks 7 and second fixed bricks 8 together, the construction difficulty is greatly reduced. At the same time, different areas such as corner bricks 12, slag mouth bricks 6, inclined bricks 13 and ring bricks 14 can use different materials to make their corrosion rates consistent.

[0025] The usage process of the water-coal slurry gasification furnace brick with quick-release mechanism provided by this utility model is as follows: During installation, the insulation layer 2 is first laid on the inner wall of the furnace body 1, and then the brick support plate 3 is installed on the upper side of the insulation layer 2. The upper surface of the brick support plate 3 is set in a stepped shape. Then, the slag outlet brick 6 is placed on the bottom wall of the furnace body 1 so that it contacts the brick support plate 3, and the first fixing brick 7 is placed on the upper surface of the joint between the slag outlet brick 6 and the brick support plate 3 so that the first fixing brick 7 covers and presses down the joint.

[0026] Next, the corner brick 12 is placed on the upper surface of the slag outlet brick 6 and the first fixing brick 7, so that the first embedding protrusion 15 on the lower side of the corner brick 12 is embedded in the first embedding groove 9 on the upper side of the slag outlet brick 6, and the second embedding protrusion 16 on the lower side of the corner brick 12 is embedded in the second embedding groove 10 on the upper side of the first fixing brick 7, thereby realizing the positioning and locking of the corner brick 12.

[0027] Then, the inclined brick 13 is placed on the upper surface of the brick support plate 3 and the first fixed brick 7. The stepped surface on the lower side of the inclined brick 13 fits into the stepped surface on the upper side of the brick support plate 3. The second embedding protrusion 16 on the lower side of the inclined brick 13 is embedded in the second embedding groove 10 on the upper side of the first fixed brick 7 to achieve the positioning of the inclined brick 13. At this time, the second fixed brick 8 is placed on the protrusion on the right side of the inclined brick 13 and the brick support plate 3. Then, the annular brick 14 is placed on the upper surface of the second fixed brick 8. The third embedding protrusion 17 on the lower side of the annular brick 14 is embedded in the third embedding groove 11 on the upper side of the second fixed brick 8 to complete the locking of the annular brick 14. The upper side of the annular brick 14 is also provided with a third embedding groove 11 for the layer-by-layer overlapping of the upper annular bricks 14.

[0028] Through the interlocking structure of the embedded protrusions and grooves, the bricks are connected by mortise and tenon joints, which enables quick positioning and locking. When disassembling, simply reverse the operation and release the embedded fit layer by layer to remove each brick in turn, without having to knock them off one by one, thus achieving a quick disassembly function.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A furnace brick for a coal-water slurry gasification furnace with a quick-release mechanism, characterized in that, The furnace includes a furnace body (1), on which a heat insulation layer (2) is provided, and on which a brick support plate (3) is provided. The upper surface of the brick support plate (3) is stepped. The upper surface of the brick support plate (3) is provided with refractory bricks (4) and connecting bricks (5). The bottom wall of the furnace body (1) is provided with slag opening bricks (6). The slag opening bricks (6) are in contact with the brick support plate (3). The connecting bricks (5) are composed of a first fixing brick (7) and a second fixing brick (8). The first fixing brick (7) is located on the upper surface of the joint between the slag opening brick (6) and the brick support plate (3). The upper surface of the slag opening brick (6) is provided with a first embedding groove (9). The upper surfaces of the first fixing brick (7) and the second fixing brick (8) are respectively provided with a second embedding groove (10) and a third embedding groove (11).

2. The water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 1, characterized in that, The refractory brick (4) is composed of corner brick (12), inclined brick (13) and ring brick (14). The upper surfaces of the corner brick (12) and the inclined brick (13) are inclined. The corner brick (12) is located on the upper surface of the slag mouth brick (6) and the first fixed brick (7).

3. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 2, characterized in that, The lower surface of the corner brick (12) is fixedly connected with a first embedded protrusion (15) and a second embedded protrusion (16), and the first embedded protrusion (15) fits into the first embedded groove (9).

4. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 3, characterized in that, The inclined brick (13) is located on the upper surface of the brick support plate (3) and the first fixed brick (7).

5. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 4, characterized in that, The lower surface of the inclined brick (13) is also set in a stepped shape, and the lower surface of the inclined brick (13) fits with the upper surface of the brick support plate (3).

6. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 5, characterized in that, The lower surface of the inclined brick (13) is also fixed with a second embedded protrusion (16), and the two second embedded protrusions (16) fit into the second embedded groove (10).

7. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 6, characterized in that, The second fixing brick (8) is located on the upper surface of the brick support plate (3) and the inclined brick (13), the ring brick (14) is located on the upper surface of the second fixing brick (8), and the lower surface of the ring brick (14) is fixed with a third embedded protrusion (17).

8. A water-coal slurry gasification furnace brick with a quick-release mechanism according to claim 7, characterized in that, The third embedded protrusion (17) fits into the third embedded groove (11), and the upper surface of the annular brick (14) is also provided with the third embedded groove (11).

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