Biomass fire grate driving sealing device

Abstract

The utility model discloses a biomass fire grate driving sealing device which comprises two flange bodies, the opposite sides of the two flange bodies are fixedly connected with fixing pipes, the ends, away from the flange bodies, of the fixing pipes are fixedly connected with fixing discs, and fixing grooves are formed in the outer walls of the fixing discs. A fluororubber composite skin is movably connected between the two fixing discs, a metal expansion joint is fixedly connected between the two fixing discs, displacement such as thermal expansion and cold contraction caused by temperature change and the like of a pipeline can be compensated through the metal expansion joint, and the composite skin generally has the characteristics of certain flexibility, corrosion resistance and the like. The metal expansion joint can be protected, good sealing performance is achieved, the screw rod is in threaded connection with the moving block in cooperation with rotation of the screw rod, so that the moving block drives the connecting block and the locking column to be disengaged from a locking groove in the positioning block, the fluororubber composite skin is conveniently and rapidly replaced, the convenience is improved, and meanwhile the service life of the fluororubber composite skin is prolonged. And the sealing performance and the service life of the sealing device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a biomass grate drive sealing device. Background Technique

[0002] The grate drive sealing device is an important component used in the grate drive system. Its main function is to prevent dust, hot air, combustion products, etc. in the furnace from leaking into the external environment, and at the same time prevent external cold air from entering the furnace, affecting the combustion efficiency and the working conditions inside the furnace. It usually consists of sealing materials, sealing structures, and seals. The sealing materials generally have characteristics such as high temperature resistance, wear resistance, and corrosion resistance to adapt to the harsh working environment inside the furnace.

[0003] When the existing grate drive sealing devices are in use, metal expansion joints or non-metal expansion joints are usually adopted. Metal expansion joints can compensate for the displacement caused by thermal expansion and contraction of pipelines due to temperature changes, and non-metal expansion joints can improve flexibility and have good corrosion resistance. However, in the actual use process, the metal expansion joints have insufficient corrosion resistance and are prone to damage. And the non-metal expansion joints are damaged under the influence of high temperature after long-term use. The connection between the non-metal expansion joint and the flange is fixed by multiple bolts. Once the non-metal expansion joint is damaged and needs to be replaced, multiple bolts need to be disassembled, and the replacement process is relatively troublesome, which is not conducive to subsequent maintenance, resulting in poor effects in the actual use process. Content of the Utility Model

[0004] The purpose of the utility model is to provide a biomass grate drive sealing device. The metal expansion joint can compensate for displacements such as thermal expansion and contraction caused by reasons such as temperature changes of the pipeline. The composite skin usually has certain flexibility and corrosion resistance and other characteristics, which can protect the metal expansion joint and play a good sealing role. With the rotation of the screw rod, the screw connection can occur between the screw rod and the moving block, so that the moving block drives the connecting block and the locking column to disengage from the locking groove on the positioning block, facilitating the rapid replacement of the fluororubber composite skin, improving the convenience, and at the same time improving the good sealing performance and service life of the sealing device.

[0005] To achieve the above object, the present utility model provides the following technical solution: A biomass grate drive sealing device, comprising two flange bodies. On one side of each of the two flange bodies, a fixed pipe is fixedly connected. One end of the fixed pipe away from the flange body is fixedly connected with a fixed disk. A fixed groove is formed on the outer wall of the fixed disk. A fluororubber composite skin is movably connected between the two fixed disks. A metal expansion joint is fixedly connected between the two fixed disks. A first fixed arc bar and a second fixed arc bar are respectively movably connected in the fixed groove. Two symmetrically arranged fixed rods are fixedly connected to the outer wall of the first fixed arc bar. A moving groove is formed on one side of the fixed rod. A moving block is slidably connected in the moving groove. A screw rod is screwed on the moving block. The screw rod is rotatably connected with the fixed rod. A connecting block is fixedly connected to one side of the moving block. A locking column is fixedly connected to one side of the connecting block. Two symmetrically arranged positioning blocks are fixedly connected to the outer wall of the second fixed arc bar. A locking groove is formed on one side of the positioning block. The locking groove is movably connected with the locking column.

[0006] The beneficial effects of the present utility model are as follows: By using the metal expansion joint, the displacement generated by the thermal expansion and contraction of the pipeline can be compensated. In cooperation with the use of the fluororubber composite skin, the metal expansion joint is protected to prevent the metal expansion joint from rusting and damaging, and at the same time, good sealing performance is ensured, improving the sealing effect of the drive sealing device. And by rotating the screw rod and screwing it with the moving block, the moving block drives the connecting block and the locking column to disengage from the positioning block, and the locking column is separated from the locking groove, which is convenient for replacing the fluororubber composite skin and improves the flexibility of use.

[0007] In order to protect the metal expansion joint, improve the sealing performance and extend its service life;

[0008] As a further improvement of the above technical solution: A docking groove is formed on one side of the fixed rod in contact with the positioning block. A docking block is movably connected in the docking groove. The docking block is fixedly connected with the positioning block.

[0009] The beneficial effect of this improvement is that through the docking of the docking groove and the docking block, the initial connection between the first fixed arc bar and the second fixed arc bar can be realized, which is convenient for fixing the first fixed arc bar and the second fixed arc bar.

[0010] In order to achieve the quick and accurate docking between the first fixed arc bar and the second fixed arc bar;

[0011] As a further improvement of the above technical solution: A first inner liner pipe and a second inner liner pipe are respectively fixedly connected to the inner wall of the metal expansion joint. The first inner liner pipe and the second inner liner pipe are slidably connected with each other.

[0012] The beneficial effects of this improvement are as follows: By using the first inner lining pipe and the second inner lining pipe, the metal expansion joint can be protected, the damage to the metal expansion joint caused by the conveyed medium can be reduced, and the service life of the metal expansion joint can be extended.

[0013] In order to protect the metal expansion joint;

[0014] As a further improvement of the above technical solution: A first avoidance groove is provided on the outer wall of the first inner lining pipe, and a second avoidance groove is provided on the inner wall of the second inner lining pipe.

[0015] The beneficial effects of this improvement are as follows: By using the first avoidance groove on the first inner lining pipe and the second avoidance groove on the second inner lining pipe, the first inner lining pipe and the second inner lining pipe can slide relative to each other, and the situation of being stuck and unable to move will not occur.

[0016] In order to achieve stable sliding between the first inner lining pipe and the second inner lining pipe;

[0017] As a further improvement of the above technical solution: An arc-shaped connecting plate is fixedly connected between two adjacent fixing rods.

[0018] The beneficial effects of this improvement are as follows: By using the arc-shaped connecting plate, the two fixing rods on the same first fixing arc can be made stable enough, preventing the fixing rods from being skewed and affecting normal use.

[0019] In order to stabilize the two fixing rods on the same first fixing arc;

[0020] As a further improvement of the above technical solution: A number of uniformly distributed positioning holes are provided on the flange body.

[0021] The beneficial effects of this improvement are as follows: By using the positioning holes, the flange body can be conveniently fixed, and further, during the use of the driving sealing device, it can be ensured to be stable enough, without being skewed or shaken, and the stability during use can be guaranteed.

[0022] In order to fix the flange body;

[0023] As a further improvement of the above technical solution: One end of the screw rod is fixedly connected with a rotating block.

[0024] The beneficial effects of this improvement are as follows: By rotating the rotating block, the screw rod can be twisted, which is convenient for the moving block to drive the lock column on the connecting block to move flexibly, improving the convenience of use.

[0025] In order to rotate the screw rod. Brief Description of the Drawings

[0026] Figure 1Schematic diagram of the three-dimensional structure provided by the present utility model Figure 1 ;

[0027] Figure 2 Schematic diagram of the three-dimensional structure provided by the present utility model Figure 2 ;

[0028] Figure 3 Front view provided by the present utility model;

[0029] Figure 4 Provided by the present utility model Figure 3 Three-dimensional sectional view at A-A in;

[0030] Figure 5 Schematic diagram of the three-dimensional structure provided by the present utility model Figure 3 .

[0031] In the figure, 1. Flange body; 11. Fixed pipe; 12. Fixed disk; 13. Fixed groove; 14. Fluororubber composite skin; 15. Metal expansion joint; 16. First fixed arc bar; 17. Second fixed arc bar; 18. Fixed rod; 19. Moving groove; 20. Moving block; 21. Screw rod; 22. Connecting block; 23. Locking column; 24. Positioning block; 25. Locking groove; 31. Docking groove; 32. Docking block; 41. First inner lining pipe; 42. Second inner lining pipe; 51. First avoidance groove; 52. Second avoidance groove; 61. Arc-shaped connecting plate; 71. Positioning hole; 81. Rotating block. Specific embodiments

[0032] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.

[0033] As Figures 1 to 5As shown in the figure, a biomass grate driving and sealing device provided by an embodiment of the present utility model includes two flange bodies 1. On one side of the two flange bodies 1 facing each other, a fixed pipe 11 is fixedly connected. One end of the fixed pipe 11 away from the flange body 1 is fixedly connected with a fixed disk 12. A fixed groove 13 is formed on the outer wall of the fixed disk 12. A fluororubber composite skin 14 is movably connected between the two fixed disks 12. A metal expansion joint 15 is fixedly connected between the two fixed disks 12. The use of the metal expansion joint 15 can compensate for the displacement deformation of the pipeline caused by force, and cooperate with the use of the fluororubber composite skin 14 to improve the sealing performance and protect the metal expansion joint 15 from rust, thereby extending its service life. A first fixed arc bar 16 and a second fixed arc bar 17 are respectively movably connected in the fixed groove 13. The use of the first fixed arc bar 16 and the second fixed arc bar 17 can fix the fluororubber composite skin 14 in the fixed groove 13. Two symmetrically arranged fixed rods 18 are fixedly connected to the outer wall of the first fixed arc bar 16. A moving groove 19 is formed on one side of the fixed rod 18. A moving block 20 is slidably connected in the moving groove 19. A screw rod 21 is screwed on the moving block 20. The screw rod 21 is rotatably connected to the fixed rod 18. A connecting block 22 is fixedly connected to one side of the moving block 20. A locking column 23 is fixedly connected to one side of the connecting block 22. Two symmetrically arranged positioning blocks 24 are fixedly connected to the outer wall of the second fixed arc bar 17. A locking groove 25 is formed on one side of the positioning block 24. The locking groove 25 is movably connected with the locking column 23. By cooperating with the rotation of the screw rod 21, the moving block 20 drives the locking column on the connecting block 22 to move, so that the locking column 23 is quickly docked with the locking groove 25, which is convenient for quickly fixing the fluororubber composite skin 14. A docking groove 31 is formed on the side of the fixed rod 18 in contact with the positioning block 24. A docking block 32 is movably connected in the docking groove 31. The docking block 32 is fixedly connected to the positioning block 24. The use of four docking grooves 31 and four docking blocks 32 can quickly dock between the two first fixed arc bars 16 and the two second fixed arc bars 17, ensuring the preliminary docking of the first fixed arc bar 16 and the second fixed arc bar 17. A first inner lining pipe 41 and a second inner lining pipe 42 are respectively fixedly connected to the inner wall of the metal expansion joint 15. The first inner lining pipe 41 and the second inner lining pipe 42 are slidably connected to each other. The use of the first inner lining pipe 41 and the second inner lining pipe 42 can protect the inside of the metal expansion joint 15 and assist the metal expansion joint 15 in displacement deformation at the same time. A first avoidance groove 51 is formed on the outer wall of the first inner lining pipe 41. A second avoidance groove 52 is formed on the inner wall of the second inner lining pipe 42. The use of the first avoidance groove 51 and the second avoidance groove 52 can cooperate with the first inner lining pipe 41 and the second inner lining pipe 42 to slide stably without getting stuck. An arc-shaped connecting plate 61 is fixedly connected between two adjacent fixed rods 18. The use of two arc-shaped connecting plates 61 can stabilize the corresponding two fixed rods 18, ensuring that the fixed rods 18 are stable enough during use.The flange body 1 is provided with a plurality of uniformly distributed positioning holes 71. By using the plurality of positioning holes 71, the flange body 1 can be fixed to ensure that the flange body 1 is sufficiently stable during use. One end of the screw rod 21 is fixedly connected with a rotating block 81. The use of the rotating block 81 can rotate the screw rod 21, facilitating the operation of the staff.

[0034] The working principle and usage process of the present utility model: During use, the sealing device can be fixed through the positioning holes 71 on the two flange bodies 1. In cooperation with the use of the metal expansion joint 15, it can compensate for the displacement caused by the thermal expansion and contraction of the pipeline due to temperature changes. The use of the fluororubber composite skin 14 can protect the metal expansion joint 15 to prevent the metal expansion joint 15 from being corroded, and at the same time ensure the good sealing performance of the entire sealing device to prevent leakage. When the fluororubber composite skin 14 is damaged and needs to be replaced, the four rotating blocks 81 can be rotated in sequence to make the screw rod 21 and the moving block 20 be screwed together, so that the moving block 20 drives the connecting block 22 and the locking column 23 to move and disengage from the locking groove 25 on the positioning block 24, facilitating the rapid replacement process of the fluororubber composite skin 14, thereby realizing the use process of the entire driving sealing device.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A biomass grate drive sealing device, comprising two flange bodies (1), characterized in that: On opposite sides of the two flange bodies (1), fixed pipes (11) are fixedly connected. One end of the fixed pipe (11) away from the flange body (1) is fixedly connected with a fixed disc (12). A fixed groove (13) is formed on the outer wall of the fixed disc (12). A fluororubber composite skin (14) is movably connected between the two fixed discs (12). A metal expansion joint (15) is fixedly connected between the two fixed discs (12). A first fixed arc bar (16) and a second fixed arc bar (17) are respectively movably connected in the fixed groove (13). Two symmetrically arranged fixed rods (18) are fixedly connected to the outer wall of the first fixed arc bar (16). A moving groove (19) is formed on one side of the fixed rod (18). A moving block (20) is slidably connected in the moving groove (19). A screw rod (21) is screwed on the moving block (20). The screw rod (21) is rotatably connected to the fixed rod (18). A connecting block (22) is fixedly connected to one side of the moving block (20). A locking column (23) is fixedly connected to one side of the connecting block (22). Two symmetrically arranged positioning blocks (24) are fixedly connected to the outer wall of the second fixed arc bar (17). A locking groove (25) is formed on one side of the positioning block (24). The locking groove (25) is movably connected to the locking column (23).

2. The biomass grate drive sealing device according to claim 1, wherein: A docking groove (31) is formed on the side of the fixed rod (18) in contact with the positioning block (24). A docking block (32) is movably connected in the docking groove (31). The docking block (32) is fixedly connected to the positioning block (24).

3. The biomass grate drive sealing device according to claim 1, characterized in that: A first inner lining pipe (41) and a second inner lining pipe (42) are respectively fixedly connected to the inner wall of the metal expansion joint (15). The first inner lining pipe (41) and the second inner lining pipe (42) are slidably connected to each other.

4. A biomass grate drive sealing device according to claim 3, characterized in that: A first avoidance groove (51) is formed on the outer wall of the first inner lining pipe (41). A second avoidance groove (52) is formed on the inner wall of the second inner lining pipe (42).

5. A biomass grate drive sealing device according to claim 1, characterized in that: An arc-shaped connecting plate (61) is fixedly connected between two adjacent fixed rods (18).

6. A biomass grate drive sealing device according to claim 1, characterized in that: A number of uniformly distributed positioning holes (71) are formed on the flange body (1).

7. A biomass grate drive sealing device according to claim 1, characterized in that: A rotating block (81) is fixedly connected to one end of the screw rod (21).

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