Mixed purification device for tail gas of calcium carbide furnace

Abstract

The utility model relates to the technical field of purification devices, and discloses a calcium carbide furnace tail gas mixing type purification device which comprises a purification chamber, a partition plate is fixedly connected to the inner wall of the purification chamber, a filtering assembly is arranged at the top end of the inner wall of the purification chamber, and a connecting pipe is fixedly connected to the bottom end of the partition plate. An air inlet pipe is fixedly connected to the outer wall of the connecting pipe, bent pipes are fixedly connected to the two ends of the connecting pipe, piston rods are arranged at the bottom ends of the bent pipes, plugs are fixedly connected to the top ends of the piston rods and used for plugging the bent pipes, and linkage assemblies are arranged at the bottom ends of the piston rods and used for connecting the bent pipes with the connecting pipe. The outer wall of one piston rod is connected with the bent pipe through a lifting assembly. According to the utility model, the purification device adopts a multi-chamber design, and when the solution and the activated carbon layer are replaced, the plug is matched with the piston rod to realize non-stop operation, so that the purification continuity is guaranteed, the efficiency is improved, and the pollution is reduced. Meanwhile, part abrasion is relieved through segmented relay purification, the service life of the device is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of purification device technology, and in particular to a calcium carbide furnace tail gas mixing purification device. Background Technology

[0002] The calcium carbide furnace is the main equipment for producing calcium carbide. Inside the furnace, the high temperature generated by the electric arc melts the furnace charge, producing calcium carbide and generating a large amount of furnace exhaust gas. This exhaust gas contains a large number of harmful substances, such as carbon monoxide, hydrogen, sulfides, phosphides, cyanides, and dust, which seriously affect the environment and human health. Therefore, the purification and treatment of calcium carbide furnace exhaust gas is an indispensable part of the calcium carbide production process, aiming to reduce the concentration of harmful substances in the exhaust gas and minimize its impact on the environment and human health.

[0003] Existing calcium carbide furnace exhaust gas purification devices typically employ a single purification chamber structure, using a reaction solution to neutralize and purify the discharged exhaust gas. In this structure, the reaction solution is a consumable, requiring regular replacement by workers. The replacement process is time-consuming and necessitates stopping the purification equipment, leaving it idle and increasing its downtime, thus reducing exhaust gas purification efficiency. Furthermore, the purification components within a single purification chamber are prone to excessive wear due to prolonged, high-intensity continuous use, leading to increased maintenance costs and shortened lifespan. To address these technical problems, this application proposes a calcium carbide furnace exhaust gas mixing purification device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mixed purification device for calcium carbide furnace tail gas. The purification device features a multi-chamber design, and when replacing the solution and activated carbon layer, the plug and piston rod work together to achieve continuous operation without shutting down the machine, ensuring continuous purification, improving efficiency, and reducing pollution. Simultaneously, segmented relay purification reduces component wear, extends the device's lifespan, and lowers maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A calcium carbide furnace exhaust gas mixing and purification device includes a purification chamber. A partition is fixedly connected to the inner wall of the purification chamber. A filter assembly is installed at the top of the inner wall of the purification chamber. A connecting pipe is fixedly connected to the bottom end of the partition. An air inlet pipe is fixedly connected to the outer wall of the connecting pipe. Bending pipes are fixedly connected to both ends of the connecting pipe. A piston rod is installed at the bottom end of the bending pipe. A plug is fixedly connected to the top end of the piston rod for sealing the bending pipe. A linkage assembly is installed at the bottom end of the piston rod. The outer wall of one piston rod is connected to the bending pipe through a lifting assembly for controlling the lifting and lowering of the piston rod.

[0007] Furthermore, the linkage assembly includes a piston ring fixedly connected to the bottom end of the piston rod and a C-shaped linkage tube fixedly connected to the bottom end of the cleanroom, wherein both the piston rod and the piston ring are disposed on the inner wall of the C-shaped linkage tube.

[0008] Furthermore, the lifting assembly includes a threaded rod rotatably connected to the outer wall of one of the bends, the outer wall of one of the piston rods being threadedly connected to the outer wall of the threaded rod, and a handle being fixedly connected to the bottom end of the threaded rod.

[0009] Furthermore, the filter assembly includes a shelf fixedly connected to the inner wall of the top of the purification chamber, and an activated carbon layer is provided on the top side of the shelf.

[0010] Furthermore, the top end of the bent pipe is located inside the cleanroom.

[0011] Furthermore, the plug is located inside the bend.

[0012] Furthermore, an exhaust pipe is fixedly connected to the top of the purification chamber, and a drain pipe is fixedly connected to the bottom side of the purification chamber.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by utilizing the multi-chamber structure of the purification chamber, when it is necessary to replace the solution and activated carbon layer in one of the chambers, the replacement can be achieved without stopping the machine through the cooperation of components such as plugs and piston rods. This allows the exhaust gas purification process to continue, avoiding downtime caused by replacing purification materials. This effectively improves the exhaust gas purification efficiency, ensuring that the calcium carbide furnace exhaust gas can be purified in a timely and effective manner, reducing environmental pollution.

[0015] 2. In this utility model, the purification device is internally configured with multiple chambers, which avoids excessive wear on the internal components of a single purification device due to prolonged and high-intensity continuous use during the exhaust gas purification process. This segmented relay purification method allows the purification components in each chamber to operate under a relatively reasonable load, thereby effectively extending the service life of the entire purification device, reducing equipment maintenance costs and replacement frequency, and facilitating a longer service life. Attached Figure Description

[0016] Figure 1 This is a perspective view of a calcium carbide furnace tail gas mixing and purification device proposed in this utility model;

[0017] Figure 2 for Figure 1 A magnified view of point A;

[0018] Figure 3 This is a schematic diagram of the purification chamber structure of a calcium carbide furnace tail gas mixing and purification device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the plug structure of a calcium carbide furnace tail gas mixing and purification device proposed in this utility model.

[0020] Legend:

[0021] 1. Cleanroom; 2. Exhaust pipe; 3. C-shaped linkage pipe; 4. Inlet pipe; 5. Bend; 6. Piston rod; 7. Threaded rod; 8. Connecting pipe; 9. Drain pipe; 10. Partition; 11. Shelf; 12. Activated carbon layer; 13. Plug. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a calcium carbide furnace tail gas mixing and purification device, including a purification chamber 1, a partition 10 fixedly connected to the inner wall of the purification chamber 1, a placement rack 11 fixedly connected to the inner wall of the top of the purification chamber 1, an activated carbon layer 12 provided on the top side of the placement rack 11, a connecting pipe 8 fixedly connected to the bottom end of the partition 10, an air inlet pipe 4 fixedly connected to the outer wall of the connecting pipe 8, and bent pipes 5 fixedly connected to both ends of the connecting pipe 8. A piston rod 6 is provided at the bottom end of the bent pipe 5, and a plug 13 is fixedly connected to the top end of the piston rod 6 for sealing the bent pipe 5. The linkage component includes a piston ring fixedly connected to the bottom end of the piston rod 6 and a C-shaped linkage pipe 3 fixedly connected to the bottom end of the purification chamber 1. The piston rod 6 and the piston ring are both provided on the inner wall of the C-shaped linkage pipe 3. The lifting component includes a threaded rod 7 rotatably connected to the outer wall of one of the bent pipes 5, and the outer wall of one of the piston rods 6 is threadedly connected to the outer wall of the threaded rod 7. A handle is fixedly connected to the bottom end of the threaded rod 7 for controlling the lifting and lowering of the piston rod 6.

[0024] Specifically, firstly, the exhaust gas to be purified is introduced into the connecting pipe 8 through the inlet pipe 4. Then, the exhaust gas flows into the purification chamber 1 through the bend pipe 5. At this time, the solution at the bottom of the purification chamber 1 will perform preliminary purification treatment on the exhaust gas. The exhaust gas, after preliminary purification, continues to rise, passes through the activated carbon layer 12 for secondary purification, and is finally discharged through the exhaust pipe 2, thus completing the purification process of the calcium carbide furnace exhaust gas. When it is necessary to replace the solution and activated carbon layer 12 in the purification chamber 1, one of the piston rods 6 and the plug 13 can be moved in the bend pipe 5 by rotating the threaded rod 7. When the plug 13 blocks the connecting pipe 8, it ensures that the connecting pipe 8 no longer supplies exhaust gas into the bend pipe 5. At the same time, the moving piston rod 6 will drive the piston ring at its bottom to move in the C-shaped linkage pipe 3, compressing the gas in the C-shaped linkage pipe 3, thereby pushing the other piston rod 6 and piston ring to move, causing the plug 13 to rise and move away from the other end of the connecting pipe 8, so that the connecting pipe 8 can supply exhaust gas into the other bend pipe 5. During this period, the solution and activated carbon layer 12 in one of the chambers of purification chamber 1 can be replaced. The multi-chamber structure of purification chamber 1 is used to purify the calcium carbide furnace exhaust gas. When replacing the solution and activated carbon layer 12, there is no need to stop the machine. By using a plug 13 to block the connecting pipe 8 and introduce exhaust gas into one of the bends 5, the problem of reduced exhaust gas purification efficiency due to machine shutdown is avoided. This also effectively extends the service life of the purification device.

[0025] Reference Figures 2-4 The top end of the bend 5 is located inside the cleanroom 1, the plug 13 is located inside the bend 5, the top end of the cleanroom 1 is fixedly connected to the exhaust pipe 2, and the bottom side of the cleanroom 1 is fixedly connected to the drain pipe 9.

[0026] Specifically, the bend 5 is installed inside the purification chamber 1, and the liquid level inside the bend 5 is lower than the highest point of the bend 5, ensuring that the exhaust gas inside the bend 5 can enter the interior of the solution, while the solution will not flow into the interior of the bend 5. The exhaust pipe 2 ensures the discharge of the exhaust gas after purification, and the drain pipe 9 is equipped with a valve to facilitate the replacement of the solution inside the purification chamber 1.

[0027] Working principle: First, the exhaust gas to be purified is introduced into the connecting pipe 8 through the inlet pipe 4. The exhaust gas flows into the purification chamber 1 through the bend pipe 5, where it is initially purified by the solution at the bottom of the purification chamber 1. After initial purification, the exhaust gas rises and undergoes secondary purification through the activated carbon layer 12, and then is discharged through the exhaust pipe 2, completing the purification of the calcium carbide furnace exhaust gas. When it is necessary to replace the solution and activated carbon layer 12 inside the purification chamber 1, one of the piston rods 6 and the plug 13 can be moved inside the bend pipe 5 by rotating the threaded rod 7. When the head 13 blocks the connecting pipe 8, it ensures that the connecting pipe 8 no longer supplies exhaust gas into one of the bends 5. The moving piston rod 6 will drive the piston ring at the bottom to move inside the C-shaped linkage pipe 3. By compressing the gas inside the C-shaped linkage pipe 3, it drives the other piston rod 6 and piston ring to move and control the head 13 to descend and move away from the other end of the connecting pipe 8, ensuring that the connecting pipe 8 can supply exhaust gas into the other bend 5. Then, the solution and activated carbon layer 12 inside one of the chambers inside the purification chamber 1 are replaced.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A calcium carbide furnace tail gas mixed type purification device, characterized by, The utility model provides a filter, including the purification chamber (1), the inner wall fixed connection of purification chamber (1) has the partition (10), the inner wall top of purification chamber (1) is provided with filter assembly, the bottom of partition (10) is fixedly connected with the connecting pipe (8), the outer wall fixed connection of connecting pipe (8) has the air inlet pipe (4), both ends of connecting pipe (8) are fixedly connected with the elbow (5), the bottom of elbow (5) is provided with piston rod (6), the top of piston rod (6) is fixedly connected with the plug (13) for the plugging of elbow (5), the bottom of piston rod (6) is provided with linkage assembly, one piston rod (6) outer wall is connected with the elbow (5) through the lifting assembly for controlling the lifting of piston rod (6).

2. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The linkage assembly includes a piston ring fixedly connected to the bottom of the piston rod (6) and a C-shaped linkage pipe (3) fixedly connected to the bottom of the purification chamber (1), and the piston rod (6) and the piston ring are both arranged on the inner wall of the C-shaped linkage pipe (3).

3. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The lifting assembly includes a threaded rod (7) rotatably connected to the outer wall of one of the elbow (5), and the outer wall of one of the piston rod (6) is threadedly connected to the outer wall of the threaded rod (7), and the bottom of the threaded rod (7) is fixedly connected with a handle.

4. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The filter assembly includes a placing rack (11) fixedly connected to the inner wall of the top of the purification chamber (1), and the top side of the placing rack (11) is provided with an activated carbon layer (12).

5. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The top of the elbow (5) is arranged inside the purification chamber (1).

6. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The plug (13) is arranged inside the elbow (5).

7. The calcium carbide furnace tail gas mixed purification device according to claim 1, characterized in that: The top of the purification chamber (1) is fixedly connected with an exhaust pipe (2), and the bottom side of the purification chamber (1) is fixedly connected with a liquid discharge pipe (9).

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