Coal-to-methanol gasifier with wear-resistant inner liner structure

Abstract

The utility model discloses a coal -to -methanol gasification furnace with wear -resistant lining structure relates to gasification furnace technical field, including the furnace body shell, the inside of furnace body shell is provided with the heat -proof lining, the top fixedly connected with wear -resistant alloy lining bush in the inside of heat -proof lining. This coal -to -methanol gasification furnace with wear -resistant lining structure is provided with wear -resistant alloy lining bush, dispersion chamber and through cavity, when using, high -temperature steam and oxygen respectively from the high -temperature steam entrance, oxygen entrance of furnace body shell both sides enter the furnace body inside, and the powdery coal material enters the furnace body along the coal material entrance, and the wear -resistant alloy lining bush is arranged in the material inlet position, and the coal material is diffused to the dispersion chamber when falling and is hit by the rotation of the cloth distribution disc, and the wear -resistant alloy lining bush can increase the internal strength of the heat -proof lining, avoids the abrasion of coal material direct hit heat -proof lining and causes, realizes the function of lining reinforcement wear -resistant, solves the problem that the device does not have the function of lining reinforcement wear -resistant.

Description

Technical Field

[0001] This utility model relates to the field of gasification furnace technology, specifically a coal-to-methanol gasification furnace with a wear-resistant inner lining structure. Background Technology

[0002] A gasifier is one of the main pieces of equipment in coal-to-methanol production. Pulp-like coal and water react with high-pressure oxygen inside the gasifier to produce syngas. The main components of syngas are CO, H2, CO2, H2O, and small amounts of CH4, H2S, and other gases. Most gasifiers on the market are similar in overall structure, consisting of an outer shell and an internal insulating lining. The insulating lining is in direct contact with the coal, and the coal, dispersed by the distributor, constantly impacts the lining, easily causing internal wear and uneven heating of the furnace body. Furthermore, the internal lining lacks the wear-resistant reinforcement function required for internal reinforcement.

[0003] Now, a novel coal-to-methanol gasifier with a wear-resistant inner lining structure is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a coal-to-methanol gasifier with a wear-resistant lining structure to solve the problem mentioned in the background art of not having the function of reinforcing wear resistance with an inner lining.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal-to-methanol gasification furnace with a wear-resistant lining structure, comprising a furnace shell, with a high-temperature steam inlet and an oxygen inlet obliquely fixedly connected to the bottom of the left and right sides of the furnace shell, respectively; an insulating lining is provided inside the furnace shell; a slag discharge port is provided at the bottom of the furnace shell; a coal inlet is provided at the top of the furnace shell; a wear-resistant alloy inner liner is fixedly connected to the top of the inner lining; a dispersion chamber is provided at the top of the inner liner; a passage chamber is provided at the bottom of the inner liner; a conical disk is provided at the top of the dispersion chamber; four sets of connecting frames are welded to the outside of the conical disk; a bidirectional motor is installed at the bottom of the conical disk; a drive shaft is fixedly connected to the output end of the bottom of the bidirectional motor; a material distribution plate is fixedly connected to the top of the outer side of the drive shaft; a stirring rod is fixedly connected to the bottom of the drive shaft; multiple sets of stirring rods are welded to the outside of the stirring rod; and a gas outlet is fixedly connected to the right side of the wear-resistant alloy inner liner.

[0006] As a further technical solution of this utility model, the vertical center lines of the furnace shell, the heat insulation lining, and the wear-resistant alloy inner lining coincide, and the outer wall of the wear-resistant alloy inner lining and the inner wall of the heat insulation lining are tightly fitted together.

[0007] As a further technical solution of this utility model, the dispersion cavity, the passage cavity, and the coal inlet are internally connected, and the passage cavity is in the shape of a trumpet, which is larger at the bottom and smaller at the top.

[0008] As a further technical solution of this utility model, the wear-resistant alloy inner bushing and the connecting frame are fixedly connected, and the vertical center lines of the wear-resistant alloy inner bushing and the conical disk coincide.

[0009] As a further technical solution of this utility model, a spiral conveying shaft is fixedly connected to the output end of the bidirectional motor, and the spiral conveying shaft passes through the coal inlet and extends to the outside.

[0010] As a further technical solution of this utility model, an arc-shaped baffle is fixedly connected to the right side of the inside of the wear-resistant alloy inner liner, and a filter screen is fixedly connected to the left side of the inside of the arc-shaped baffle. The right side of the filter screen is fixedly connected to the wear-resistant alloy inner liner, and multiple sets of fine holes are opened inside the filter screen. The gas outlet and the inside of the arc-shaped baffle are connected.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the coal-to-methanol gasifier with wear-resistant lining structure not only realizes the function of strengthening the wear resistance of the lining, but also realizes the function of accelerating the feeding, and also realizes the function of blocking coal ash at the gas outlet.

[0012] (1) By setting up a wear-resistant alloy inner liner, a dispersion chamber and a passage chamber, when in use, high-temperature steam and oxygen enter the furnace body from the high-temperature steam inlet and oxygen inlet on both sides of the furnace body shell, respectively. Powdered coal enters the furnace body along the coal inlet and undergoes a gasification reaction inside the furnace body. The generated syngas is discharged from the gas outlet and the waste residue is discharged from the slag outlet. The wear-resistant alloy inner liner is arranged at the feeding position. When the coal falls, it is hit by the rotation of the distribution plate and diffuses towards the dispersion chamber and falls along the passage chamber. The wear-resistant alloy inner liner can increase the internal strength of the heat insulation liner and avoid the coal directly hitting the heat insulation liner to cause wear, thus realizing the function of strengthening the wear resistance of the inner liner.

[0013] (2) By setting up a bidirectional motor and a screw conveyor shaft, during the feeding process, the bidirectional motor drives the screw conveyor shaft to rotate continuously. The screw conveyor shaft extends into the inside of the coal hopper, and the coal material is accelerated to fall by stirring, preventing sludge accumulation, thus realizing the function of accelerating feeding.

[0014] (3) By setting up a gas outlet, an arc-shaped baffle and a filter screen, when in use, the synthesis gas is discharged along the gas outlet, the arc-shaped baffle blocks the coal material dispersed by the distribution plate, and its opening faces downward. At the same time, the filter screen arranged inside can further block coal ash, reduce the difficulty of subsequent washing, and realize the function of blocking coal ash at the gas outlet. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is an enlarged front view cross-sectional schematic diagram of the wear-resistant alloy inner liner of this utility model;

[0017] Figure 3 This is a top-view enlarged structural diagram of the conical disk of this utility model;

[0018] Figure 4 This is a magnified structural diagram of the arc-shaped baffle of this utility model, viewed from below.

[0019] In the diagram: 1. Furnace shell; 2. High-temperature steam inlet; 3. Insulating lining; 4. Slag discharge port; 5. Oxygen inlet; 6. Wear-resistant alloy inner lining; 7. Dispersion chamber; 8. Passing chamber; 9. Conical disc; 10. Connecting frame; 11. Bidirectional motor; 12. Material distribution disc; 13. Drive shaft; 14. Stirring rod; 15. Stirring bar; 16. Coal inlet; 17. Screw conveyor shaft; 18. Gas outlet; 19. Arc-shaped baffle; 20. Filter screen. Detailed Implementation

[0020] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figure 1-4 A coal-to-methanol gasification furnace with a wear-resistant lining structure includes a furnace shell 1. High-temperature steam inlet 2 and oxygen inlet 5 are obliquely fixedly connected to the bottom of the left and right sides of the furnace shell 1, respectively. An insulating lining 3 is installed inside the furnace shell 1. A slag discharge port 4 is provided at the bottom of the furnace shell 1. A coal inlet 16 is provided at the top of the furnace shell 1. A wear-resistant alloy inner liner 6 is fixedly connected to the top of the inner lining 3. A dispersion chamber 7 is provided at the top of the inner lining 6. The bottom end is provided with a passage cavity 8, the top end of the dispersion cavity 7 is provided with a conical disk 9, four sets of connecting frames 10 are welded to the outside of the conical disk 9, a bidirectional motor 11 is installed at the bottom end of the conical disk 9, a drive shaft 13 is fixedly connected to the bottom output end of the bidirectional motor 11, a cloth disk 12 is fixedly connected to the top end of the drive shaft 13, a stirring main rod 14 is fixedly connected to the bottom end of the drive shaft 13, multiple sets of stirring rods 15 are welded to the outside of the stirring main rod 14, and a gas outlet 18 is fixedly connected to the right side of the wear-resistant alloy inner sleeve 6.

[0022] The vertical center lines of the furnace shell 1, the heat insulation lining 3, and the wear-resistant alloy inner lining 6 coincide. The outer wall of the wear-resistant alloy inner lining 6 and the inner wall of the heat insulation lining 3 are tightly fitted. The dispersion chamber 7, the passage chamber 8, and the coal inlet 16 are internally connected. The passage chamber 8 is shaped like a trumpet with a larger bottom and a smaller top. The wear-resistant alloy inner lining 6 and the connecting frame 10 are fixedly connected. The vertical center lines of the wear-resistant alloy inner lining 6 and the conical disk 9 coincide, increasing the internal strength of the furnace body.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, the wear-resistant alloy inner liner 6 is arranged at the feed position. When the coal falls, it is hit by the rotation of the distribution disc 12 and diffused towards the dispersion chamber 7, and falls along the passage chamber 8. The wear-resistant alloy inner liner 6 can increase the internal strength of the heat insulation liner 3 and prevent the coal from directly hitting the heat insulation liner 3 and causing wear.

[0024] The output end of the bidirectional motor 11 is fixedly connected to a screw conveyor shaft 17. The screw conveyor shaft 17 passes through the coal inlet 16 and extends to the outside to accelerate the falling of the coal.

[0025] Specifically, such as Figure 2 and Figure 3 As shown, during the feeding process, the bidirectional motor 11 drives the screw conveyor shaft 17 to rotate continuously. The screw conveyor shaft 17 extends into the coal hopper and accelerates the falling of coal by stirring, preventing accumulation.

[0026] An arc-shaped baffle 19 is fixedly connected to the right side inside the wear-resistant alloy inner liner 6. A filter screen 20 is fixedly connected to the left side inside the arc-shaped baffle 19. The right side of the filter screen 20 is fixedly connected to the wear-resistant alloy inner liner 6. Multiple sets of fine holes are opened inside the filter screen 20. The gas outlet 18 and the interior of the arc-shaped baffle 19 are connected to prevent coal ash from mixing into the syngas and improve the cleanliness.

[0027] Specifically, such as Figure 1 and Figure 4 As shown, the syngas is discharged along the gas outlet 18, and the arc-shaped baffle 19 blocks the coal material dispersed by the distribution plate 12. Its opening faces downward, and the filter screen 20 arranged inside can further block coal ash, reducing the difficulty of subsequent washing.

[0028] Working Principle: In operation, high-temperature steam and oxygen enter the furnace body through the high-temperature steam inlet 2 and oxygen inlet 5 on both sides of the furnace shell 1, respectively. Powdered coal enters the furnace body through the coal inlet 16 and undergoes a gasification reaction inside the furnace. The generated syngas is discharged through the gas outlet 18, and the waste residue is discharged through the slag outlet 4. The wear-resistant alloy inner liner 6 is arranged at the feeding position. When the coal falls, it is impacted by the rotation of the distribution disc 12 and diffused towards the dispersion chamber 7, and then falls along the passage chamber 8. The wear-resistant alloy inner liner 6 can increase the internal strength of the heat insulation liner 3 and prevent the coal from directly impacting the heat insulation liner 3 and causing wear. During the feeding process, the bidirectional motor 11 drives the screw conveyor shaft 17 to rotate continuously. The screw conveyor shaft 17 extends into the coal hopper and accelerates the falling of the coal by stirring, preventing accumulation. Syngas is discharged along gas outlet 18, and arc-shaped baffle 19 blocks the coal material dispersed by the distribution plate 12. Its opening faces downward, and the internal filter screen 20 can further block coal ash, reducing the difficulty of subsequent washing.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coal-to-methanol gasification furnace with a wear-resistant inner lining structure, comprising a furnace shell (1), characterized in that: The bottom of the left and right sides of the furnace shell (1) are respectively fixedly connected to a high-temperature steam inlet (2) and an oxygen inlet (5). The furnace shell (1) is provided with a heat insulation lining (3). The bottom of the furnace shell (1) is provided with a slag discharge port (4). The top of the furnace shell (1) is provided with a coal inlet (16). The top of the inside of the heat insulation lining (3) is fixedly connected to a wear-resistant alloy inner liner (6). The top of the inside of the wear-resistant alloy inner liner (6) is provided with a dispersion chamber (7). The bottom of the inside of the wear-resistant alloy inner liner (6) is provided with a passage chamber (8). 7) A conical disc (9) is provided at the top of the interior. Four sets of connecting brackets (10) are welded to the outside of the conical disc (9). A bidirectional motor (11) is installed at the bottom of the conical disc (9). A transmission shaft (13) is fixedly connected to the output end of the bottom of the bidirectional motor (11). A cloth disc (12) is fixedly connected to the top of the outside of the transmission shaft (13). A stirring rod (14) is fixedly connected to the bottom of the transmission shaft (13). Multiple sets of stirring rods (15) are welded to the outside of the stirring rod (14). A gas outlet (18) is fixedly connected to the right side of the wear-resistant alloy inner liner (6).

2. The coal-to-methanol gasification furnace with a wear-resistant lining structure according to claim 1, characterized in that: The vertical center lines of the furnace shell (1), the heat insulation lining (3), and the wear-resistant alloy inner lining (6) coincide, and the outer wall of the wear-resistant alloy inner lining (6) and the inner wall of the heat insulation lining (3) are tightly fitted together.

3. A coal-to-methanol gasification furnace with a wear-resistant lining structure according to claim 1, characterized in that: The dispersion chamber (7), the passage chamber (8), and the coal inlet (16) are internally connected. The passage chamber (8) is shaped like a trumpet with a larger bottom and a smaller top.

4. A coal-to-methanol gasification furnace with a wear-resistant inner lining structure according to claim 1, characterized in that: The wear-resistant alloy inner liner (6) and the connecting frame (10) are fixedly connected, and the vertical center lines of the wear-resistant alloy inner liner (6) and the conical disk (9) coincide.

5. A coal-to-methanol gasification furnace with a wear-resistant inner lining structure according to claim 1, characterized in that: The output end of the bidirectional motor (11) is fixedly connected to a spiral conveyor shaft (17), which passes through the coal inlet (16) and extends to the outside.

6. A coal-to-methanol gasification furnace with a wear-resistant lining structure according to claim 1, characterized in that: An arc-shaped baffle (19) is fixedly connected to the right side inside the wear-resistant alloy inner liner (6). A filter screen (20) is fixedly connected to the left side inside the arc-shaped baffle (19). The right side of the filter screen (20) is fixedly connected to the wear-resistant alloy inner liner (6). Multiple sets of fine holes are opened inside the filter screen (20). The gas outlet (18) and the interior of the arc-shaped baffle (19) are connected.

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