High-temperature desulfurization and dust removal device of graphite heat treatment furnace

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a high-temperature desulfurization and dust removal device for a graphite heat treatment furnace, which solves the problem that the existing desulfurization and dust removal device is incomplete in desulfurization, and comprises a bag-type dust remover and a desulfurization tower, a gas inlet pipe is arranged on one side of the bag-type dust remover, and a gas outlet pipe is arranged on the other side of the bag-type dust remover. The bag-type dust collector is connected with the desulfurizing tower through a gas guide pipe, a fan is arranged on the gas guide pipe, one end of the gas guide pipe penetrates through the desulfurizing tower, a self-rotating aeration mechanism connected with the gas guide pipe is arranged at the bottom end in the desulfurizing tower, and a first breathable mesh plate and a second breathable mesh plate are fixedly arranged in the middle of the inside of the desulfurizing tower. A spraying desulfurization mechanism is inserted into the top end in the desulfurization tower, and an exhaust pipe is fixedly arranged at the top end of the desulfurization tower; by means of the desulfurization and dust removal device, dust can be filtered, aeration treatment can be achieved, then secondary filtering can be achieved, and meanwhile the desulfurization effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and particularly relates to a high-temperature desulfurization and dust removal device for a graphite heat treatment furnace. Background Art

[0002] When the graphitization furnace is operating, the temperature of the furnace core is as high as more than two thousand degrees. Moreover, during the graphitization process of the raw materials, due to the influence of high temperature, humidity and combustion conditions, complex physical and chemical changes will occur, generating a large amount of toxic and harmful SO2 gas and solid dust. Therefore, dust removal and desulfurization work need to be carried out.

[0003] Currently, dust removal and desulfurization work are usually achieved through the combination of a bag filter and a desulfurization tower. However, the current desulfurization tower generally realizes desulfurization work through the spraying method. This method has the disadvantage of incomplete desulfurization. In addition, when the bag filter is broken or leaked, resulting in incomplete filtration, dust will enter the interior of the desulfurization tower, easily causing blockage of the spraying mechanism and affecting the desulfurization effect, and the use effect is not good. Therefore, this application proposes a high-temperature desulfurization and dust removal device for a graphite heat treatment furnace. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-temperature desulfurization and dust removal device for a graphite heat treatment furnace, effectively solving the problem of incomplete desulfurization existing in the existing desulfurization and dust removal device.

[0005] To achieve the above object, the utility model provides the following technical solution: A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace, including a bag filter and a desulfurization tower. An air inlet pipe is arranged on one side of the bag filter. The bag filter and the desulfurization tower are connected through a guide pipe. A fan is arranged on the guide pipe. One end of the guide pipe penetrates into the desulfurization tower. A self-rotating aeration mechanism connected to the guide pipe is arranged at the bottom end inside the desulfurization tower. A breathable mesh plate one and a breathable mesh plate two are fixedly arranged at the middle position inside the desulfurization tower. A spray desulfurization mechanism is penetrated and arranged at the top end inside the desulfurization tower. An exhaust pipe is fixedly arranged at the top end of the desulfurization tower.

[0006] Preferably, the self-rotating aeration mechanism is composed of a support base, a main pipe and a plurality of aeration branch pipes. The support base is fixedly connected to the middle position of the bottom end inside the desulfurization tower. The bottom end of the main pipe penetrates into the support base and is rotatably connected thereto. The top end of the main pipe is sleeved on the guide pipe and is rotatably connected thereto. The aeration branch pipes are fixedly connected to the middle position of the side of the main pipe. A plurality of air holes are arranged on one side of the aeration branch pipe.

[0007] Preferably, the main pipe is rotatably connected to the support base and the guide pipe through bearings. A strip-shaped guide plate is fixedly arranged on the side of the aeration branch pipe away from the air holes. The vertical cross-section of the strip-shaped guide plate is a triangular structure.

[0008] Preferably, the spray desulfurization mechanism is composed of a liquid inlet pipe, a first spray assembly, and a second spray assembly. The liquid inlet pipe is inserted and connected to the top end of one side of the desulfurization tower. Both the first spray assembly and the second spray assembly are fixedly connected to the top end inside the desulfurization tower and are connected to the liquid inlet pipe.

[0009] Preferably, both the first spray assembly and the second spray assembly are composed of a number of annular pipes, a number of connecting plates, a liquid guide pipe, and a number of spray nozzles. The annular pipes are fixedly connected through the connecting plates. The liquid guide pipe is inserted through the annular pipes and is communicated with them. One end of the liquid guide pipe is connected to the liquid inlet pipe, and the spray nozzles are fixedly connected to the bottom end of the annular pipes.

[0010] Preferably, an overflow pipe is inserted and arranged at the bottom end of one side of the desulfurization tower. The bottom end of the overflow pipe is flush with the bottom surface of the inner cavity of the desulfurization tower, and the top end height of the overflow pipe is greater than the height of the second breathable mesh plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) During operation, by setting a bag filter, the main dust removal work can be achieved. By setting a self-rotating aeration mechanism composed of a support base, a main pipe, and a number of aeration branch pipes, aeration treatment can be achieved, improving the contact area between the gas and the desulfurization liquid, thereby improving the desulfurization effect. At the same time, it can perform secondary filtration on the dust that has not been completely filtered, avoiding dust from entering the atmosphere or causing blockage of the spray desulfurization mechanism. The gas can be cut and divided through the first breathable mesh plate and the second breathable mesh plate, further improving the desulfurization effect;

[0013] (2) By setting a spray desulfurization mechanism composed of a liquid inlet pipe, a first spray assembly, and a second spray assembly, spray desulfurization operation can be achieved, improving the uniformity and comprehensiveness of spraying, and further improving the desulfurization effect. By setting an overflow pipe, the desulfurization liquid inside the desulfurization tower can be continuously discharged to achieve continuous replacement, thereby ensuring that the desulfurization liquid is in the best working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0015] In the drawings:

[0016] Figure 1 is one of the structural schematic diagrams of the high-temperature desulfurization and dust removal device for the graphite heat treatment furnace of the present utility model;

[0017] Figure 2 is the second structural schematic diagram of the high-temperature desulfurization and dust removal device for the graphite heat treatment furnace of the present utility model;

[0018] Figure 3 Schematic diagram of the self-rotating aeration mechanism of the present utility model;

[0019] Figure 4 Schematic diagram of the spray desulfurization mechanism of the present utility model;

[0020] Figure 5 Schematic diagram of the first spray assembly of the present utility model;

[0021] In the figure: 1, bag filter; 2, desulfurization tower; 3, intake pipe; 4, guide pipe; 5, fan; 6, self-rotating aeration mechanism; 7, first breathable mesh plate; 8, second breathable mesh plate; 9, spray desulfurization mechanism; 10, exhaust pipe; 11, support base; 12, main pipe; 13, aeration branch pipe; 14, air holes; 15, bearing; 16, strip-shaped deflector; 17, liquid inlet pipe; 18, first spray assembly; 19, second spray assembly; 20, annular pipe; 21, connecting plate; 22, liquid guide pipe; 23, nozzle; 24, overflow pipe. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Given by Figures 1 to 3 A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace of the present utility model includes a bag filter 1 and a desulfurization tower 2. An intake pipe 3 is provided on one side of the bag filter 1. The bag filter 1 and the desulfurization tower 2 are connected by a guide pipe 4. A fan 5 is provided on the guide pipe 4. One end of the guide pipe 4 penetrates into the desulfurization tower 2. A self-rotating aeration mechanism 6 connected to the guide pipe 4 is provided at the bottom end inside the desulfurization tower 2. A first breathable mesh plate 7 and a second breathable mesh plate 8 are fixedly provided at the middle position inside the desulfurization tower 2. A spray desulfurization mechanism 9 is inserted at the top end inside the desulfurization tower 2. An exhaust pipe 10 is fixedly provided at the top end of the desulfurization tower 2;

[0024] The gas discharged from the graphite heat treatment furnace enters the interior of the bag filter 1 through the intake pipe 3. Dust removal work is achieved through the bag filter 1. The dust-removed gas enters the interior of the desulfurization tower 2 through the guide pipe 4 and the fan 5. At this time, aeration treatment is achieved through the self-rotating aeration mechanism 6, so that the gas overflows in the desulfurization liquid. On the one hand, the desulfurization effect is improved. On the other hand, the dust that has not been completely filtered can be filtered again to improve the filtering effect. Then, secondary desulfurization is achieved through the spray desulfurization mechanism 9. Finally, the gas is discharged through the exhaust pipe 10;

[0025] It is given by Figures 1 to 3

[0025] . The self-rotating aeration mechanism 6 is composed of a support base 11, a main pipeline 12 and a number of aeration branch pipes 13. The support base 11 is fixedly connected to the middle position at the inner bottom end of the desulfurization tower 2. The bottom end of the main pipeline 12 penetrates through the support base 11 and is rotatably connected thereto. The top end of the main pipeline 12 is sleeved on the gas guide pipe 4 and is rotatably connected thereto. The aeration branch pipes 13 are fixedly connected to the middle position on the side of the main pipeline 12. A number of air holes 14 are formed on one side of the aeration branch pipes 13. The main pipeline 12 is rotatably connected to the support base 11 and the gas guide pipe 4 through bearings 15 respectively. A strip-shaped deflector 16 is fixedly arranged on the side of the aeration branch pipe 13 away from the air holes 14. The vertical cross-section of the strip-shaped deflector 16 is a triangular structure;

[0026] The gas inside the gas guide pipe 4 enters into the main pipeline 12 and then is discharged through the air holes 14 on the side of the aeration branch pipes 13. Since the air holes 14 are arranged on one side only, a reaction force will be formed during the exhaust process, so that the reaction force can be used to drive the aeration branch pipes 13 to rotate. The mobility of the main pipeline 12 can be improved through the bearings 15. The resistance can be reduced through the strip-shaped deflector 16. The contact uniformity between the gas and the desulfurization liquid can be improved through the continuous rotation effect, and thus the desulfurization effect can be improved;

[0027] It is given by Figure 1 , Figure 2 , Figure 4 and Figure 5

[0025] . The spray desulfurization mechanism 9 is composed of a liquid inlet pipe 17, a first spray assembly 18 and a second spray assembly 19. The liquid inlet pipe 17 is inserted and connected to the top end of one side of the desulfurization tower 2. The first spray assembly 18 and the second spray assembly 19 are both fixedly connected to the top end inside the desulfurization tower 2 and are connected to the liquid inlet pipe 17. The first spray assembly 18 and the second spray assembly 19 are both composed of a number of annular pipes 20, a number of connecting plates 21, liquid guide pipes 22 and a number of spray heads 23. The annular pipes 20 are fixedly connected through the connecting plates 21. The liquid guide pipes 22 penetrate through the annular pipes 20 and are communicated with them. One end of the liquid guide pipe 22 is connected to the liquid inlet pipe 17. The spray heads 23 are fixedly connected to the bottom ends of the annular pipes 20;

[0028] The desulfurization liquid is supplied into the first spray assembly 18 and the second spray assembly 19 through the liquid inlet pipe 17, and the desulfurization liquid is sprayed out through the spray heads 23 to realize spray desulfurization, further improving the comprehensiveness of desulfurization;

[0029] It is given by Figure 1 and Figure 2

[0025] . An overflow pipe 24 is inserted and arranged at the bottom end of one side of the desulfurization tower 2. The bottom end of the overflow pipe 24 is flush with the bottom surface of the inner cavity of the desulfurization tower 2. The top end height of the overflow pipe 24 is greater than the height of the second breathable mesh plate 8;

[0030] While the spray desulfurization mechanism 9 continuously supplies desulfurization liquid into the desulfurization tower 2, the liquid level inside the desulfurization tower 2 rises. At this time, the overflow pipe 24 can achieve the overflow function, enabling the continuous replacement of the desulfurization liquid inside the desulfurization tower 2.

[0031] During operation, by setting up a bag filter, the main dust removal work can be achieved. By setting up a self-rotating aeration mechanism composed of a support base, a main pipe, and several aeration branch pipes, aeration treatment can be achieved, increasing the contact area between the gas and the desulfurization liquid, thereby improving the desulfurization effect. At the same time, it can perform secondary filtration on the dust that has not been completely filtered, preventing the dust from entering the atmosphere or causing blockage of the spray desulfurization mechanism. The gas can be cut and diverted through the first breathable mesh plate and the second breathable mesh plate, further improving the desulfurization effect; by setting up a spray desulfurization mechanism composed of a liquid inlet pipe, a first spray component, and a second spray component, spray desulfurization operation can be achieved, improving the uniformity and comprehensiveness of spraying, and further improving the desulfurization effect. By setting up an overflow pipe, the desulfurization liquid inside the desulfurization tower can be continuously discharged to achieve continuous replacement, thereby ensuring that the desulfurization liquid is in the best working state.

Claims

1. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace, comprising a bag filter (1) and a desulfurization tower (2), characterized in that: An air inlet pipe (3) is provided on one side of the bag filter (1), the bag filter (1) and the desulfurization tower (2) are connected via an air guide pipe (4), a fan (5) is provided on the air guide pipe (4), one end of the air guide pipe (4) is inserted into the desulfurization tower (2), a self-rotating aeration mechanism (6) connected to the air guide pipe (4) is provided at the bottom end of the desulfurization tower (2), a first air permeable mesh plate (7) and a second air permeable mesh plate (8) are fixedly provided at the middle position of the desulfurization tower (2), a spray desulfurization mechanism (9) is inserted into the top of the desulfurization tower (2), and an exhaust pipe (10) is fixedly provided at the top of the desulfurization tower (2).

2. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace according to claim 1, characterized in that: The self-rotating aeration mechanism (6) is composed of a support base (11), a main pipeline (12) and a plurality of aeration branch pipes (13); the support base (11) is fixedly connected to the middle position of the bottom end of the desulfurization tower (2); the bottom end of the main pipeline (12) is inserted into the support base (11) and is rotatably connected thereto; the top end of the main pipeline (12) is sleeved on the air guide pipe (4) and is rotatably connected thereto; the aeration branch pipe (13) is fixedly connected to the middle position of the side of the main pipeline (12); and a plurality of aeration holes (14) are provided on one side of the aeration branch pipe (13).

3. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace according to claim 2, characterized in that: The main pipeline (12) is rotatably connected to the support base (11) and the air guide pipe (4) via a bearing (15); a strip guide plate (16) is fixedly provided on the side of the aeration branch pipe (13) away from the aeration hole (14); and the vertical section of the strip guide plate (16) is a triangular structure.

4. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace according to claim 1, characterized in that: The spray desulfurization mechanism (9) is composed of a liquid inlet pipe (17), a first spray assembly (18) and a second spray assembly (19); the liquid inlet pipe (17) is connected to the top of one side of the desulfurization tower (2); the first spray assembly (18) and the second spray assembly (19) are both fixedly connected to the top of the inside of the desulfurization tower (2) and connected to the liquid inlet pipe (17).

5. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace according to claim 4, characterized in that: The first spray assembly (18) and the second spray assembly (19) are both composed of a plurality of annular tubes (20), a plurality of connecting plates (21), a liquid guiding tube (22) and a plurality of spray heads (23); the annular tubes (20) are fixedly connected via the connecting plates (21); the liquid guiding tubes (22) are inserted into the annular tubes (20) and communicated with the annular tubes (20); one end of the liquid guiding tubes (22) is connected to the liquid inlet tube (17); and the spray heads (23) are fixedly connected to the bottom ends of the annular tubes (20).

6. A high-temperature desulfurization and dust removal device for a graphite heat treatment furnace according to claim 1, characterized in that: An overflow pipe (24) is inserted into the bottom end of one side of the desulfurization tower (2), the bottom end of the overflow pipe (24) is flush with the bottom surface of the inner cavity of the desulfurization tower (2), and the top end of the overflow pipe (24) is higher than the height of the second air permeable mesh plate (8).

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