Carbon dioxide filtration device

Abstract

This utility model relates to the field of coal chemical technology, and in particular to a carbon dioxide filtration device, including a filter pipe and a rack. Connecting flanges are provided at both ends of the filter pipe. A slot is opened at the top of the filter pipe, penetrating to the bottom of the filter pipe. A protective shell is installed at the top of the filter pipe corresponding to the slot. Inside the protective shell, two filter elements are stacked and fixed with screws. A rack is installed on the top of the upper filter element. A transmission mechanism is provided on the top of the protective shell to drive the rack to move up and down. This utility model, by setting a double-layer stacked filter element structure, allows the lower filter element to be removed from the filtration channel by simply moving both filter elements down when the lower filter element reaches its replacement cycle. Simultaneously, the upper spare filter element is precisely positioned in the working position. This innovative design achieves online filter element replacement, completely avoiding the drawback of traditional replacement methods that require machine shutdown.

Description

Technical Field

[0001] This utility model relates to the field of coal chemical technology, and in particular to a carbon dioxide filtration device. Background Technology

[0002] Coal chemical production processes generate large amounts of carbon dioxide. To reduce carbon emissions, carbon dioxide filtration (capture) devices, such as chemical absorption, physical adsorption, or membrane separation technology, are typically used to separate carbon dioxide from industrial exhaust gases. Subsequently, carbon emissions are reduced through compression and storage or resource utilization (such as the production of methanol, urea, etc.), thus contributing to green and low-carbon development.

[0003] Existing carbon dioxide filtration devices for coal chemical industry have significant drawbacks when replacing filter elements. The entire system must be shut down before operation can be performed. This design causes production interruptions every time a filter element is replaced, which seriously affects the efficiency of continuous operation. Especially during high-load production, frequent shutdowns for maintenance will significantly reduce overall capacity and increase operating costs. In addition, prolonged shutdowns may also cause problems such as system temperature fluctuations, further affecting equipment stability and product quality.

[0004] Therefore, to address the problem that replacing the filter element in existing coal chemical carbon dioxide filtration devices requires prolonged equipment shutdown, thus affecting operational efficiency, a new carbon dioxide filtration device can be designed. Utility Model Content

[0005] To overcome the problem that existing coal chemical carbon dioxide filtration devices require long-term shutdowns to replace filter elements, thus affecting operational efficiency.

[0006] The technical solution of this utility model is as follows: a carbon dioxide filtration device, including a filter pipe and a rack. Connecting flanges are provided at both ends of the filter pipe. A slot is opened at the top of the filter pipe, penetrating the bottom of the filter pipe. A protective shell is installed at the top of the filter pipe corresponding to the slot. Two filter elements are stacked inside the protective shell and fixed by screws. A rack is installed on the top of the upper filter element. A transmission mechanism is provided on the top of the protective shell to drive the rack to move up and down. A limit mechanism is provided on the top of the upper filter element. A controller is installed on the front of the protective shell.

[0007] Preferably, by setting up a transmission mechanism, the rack can be driven to move up and down during operation. When the rack moves, it can push the lower filter element out of the filter pipe, while the upper filter element will enter the filter pipe. At this time, the operator can replace the lower filter element and rely on the upper filter element to temporarily filter carbon dioxide. This allows for filter element replacement without shutting down the entire equipment, thus solving the problem that existing coal chemical carbon dioxide filtration devices require long-term shutdown to replace filter elements, which affects operating efficiency.

[0008] Preferably, the transmission mechanism includes a mounting component and a drive component, wherein the mounting component is used to position the drive component and the drive component is used to drive the rack to move up and down.

[0009] Preferably, the mounting components include a fixing plate and fixing bolts; the top of the protective shell is provided with a fixing plate, and fixing bolts are connected to the four corners of the top of the fixing plate, and the fixing plate is fixed to the protective shell by the fixing bolts.

[0010] Preferably, the drive assembly includes a drive motor and a rack; the drive motor is located on the top of the fixed plate, and the output end of the drive motor is connected to the rack, which meshes with the rack.

[0011] Preferably, the limiting mechanism includes a guide component and a trigger component. The guide component is used to limit the movement direction of the filter element, and the trigger component is used to stop the drive motor from running.

[0012] Preferably, the guide assembly includes a limiting rod and a limiting plate; a limiting rod is provided at each of the four top corners of the upper filter element, the limiting rod is slidably connected to the top of the protective shell, and a limiting plate is installed on the top of the limiting rod.

[0013] Preferably, a pressure-sensitive switch is provided on the outer side of the left front limit rod. The pressure-sensitive switch is fixedly connected to the protective shell, and the controller, pressure-sensitive switch and drive motor are electrically connected.

[0014] The beneficial effects of this utility model are:

[0015] By setting up a double-layer stacked filter element structure, when the lower filter element reaches its replacement cycle, simply move both filter elements down as a whole to remove the lower filter element from the filtration channel, while simultaneously precisely positioning the upper spare filter element in the working position. This innovative design enables online filter element replacement, completely avoiding the drawbacks of traditional replacement methods that require machine shutdown. It not only significantly improves the continuous operating efficiency of the filtration system but also effectively ensures the stability of the production process, significantly reduces production capacity losses caused by downtime maintenance, improves operational safety, reduces labor costs, and provides a more efficient and economical filtration solution for industrial production. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the filter pipe of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the protective shell of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the limiting mechanism of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the drive mechanism of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Filter pipe; 2. Connecting flange; 3. Groove; 4. Protective shell; 5. Filter element; 6. Rack; 71. Fixing plate; 72. Fixing bolt; 73. Drive motor; 74. Gear column; 81. Limiting rod; 82. Limiting plate; 83. Pressure-sensitive switch; 9. Controller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a carbon dioxide filtration device, including a filter pipe 1 and a rack 6. Both ends of the filter pipe 1 are provided with connecting flanges 2. A slot 3 is opened at the top of the filter pipe 1, penetrating the bottom of the filter pipe 1. A protective shell 4 is installed at the top of the filter pipe 1 corresponding to the slot 3. Two stacked filter elements 5 are arranged inside the protective shell 4, fixed by screws. A rack 6 is installed on the top of the upper filter element 5. A transmission mechanism is provided at the top of the protective shell 4 to drive the rack 6 to move up and down. A limit mechanism is provided at the top of the upper filter element 5. A controller 9 is installed on the front of the protective shell 4. By using the transmission mechanism to drive the rack 6 to perform vertical reciprocating motion, when the rack 6 moves downward, its lower end pushes the saturated filter element 5 out of the filter pipe 1. At the same time, the upper spare filter element 5 is automatically replenished into the filter chamber. This design allows the upper spare filter element 5 to maintain the continuous operation of the carbon dioxide filtration system when the lower working filter element 5 is replaced, realizing the hot replacement operation of the filter element 5.

[0024] Please see Figures 3-5In this embodiment, the transmission mechanism includes an installation component and a drive component. The installation component is used to position the drive component, and the drive component is used to drive the rack 6 to move up and down. The installation component includes a fixing plate 71 and fixing bolts 72. The top of the protective shell 4 is provided with a fixing plate 71, and fixing bolts 72 are connected to the four corners of the top of the fixing plate 71. The fixing plate 71 is fixed to the protective shell 4 by fixing bolts 72. By setting fixing bolts 72, the fixing plate 71 and the protective shell 4 can be fixed. The drive component includes a drive motor 73 and a gear 74. The top of the fixing plate 71 is provided with a drive motor 73, and the output end of the drive motor 73 is connected to the gear 74. The gear 74 meshes with the rack 6. By setting the drive motor 73, its output end will drive the gear 74 to rotate during operation. When the gear 74 rotates, it will drive the rack 6 that meshes with it to move up and down, thereby driving the filter element 5 to move.

[0025] Please see Figures 1-5 In this embodiment, the limiting mechanism includes a guide component and a trigger component. The guide component is used to limit the movement direction of the filter element 5, and the trigger component is used to stop the drive motor 73 from running. The guide component includes a limit rod 81 and a limit piece 82. Limit rods 81 are provided at the four corners of the top of the upper filter element 5. The limit rods 81 are slidably connected to the top of the protective shell 4. The limit pieces 82 are installed on the top of the limit rods 81. By setting the limit rods 81, the filter element 5 moves and drives the limit rods 81 to slide under the restriction of the protective shell 4, thereby improving the accuracy of the movement of the filter element 5. A pressure-sensitive switch 83 is provided on the outside of the left front limit rod 81. The pressure-sensitive switch 83 is fixedly connected to the protective shell 4. The controller 9, the pressure-sensitive switch 83, and the drive motor 73 are electrically connected. By setting the pressure-sensitive switch 83, the limit piece 82 will contact the pressure-sensitive switch 83 after descending a certain distance, thereby stopping the drive motor 73 through the controller 9, ensuring that the upper filter element 5 can accurately stop at the working position.

[0026] When the filter pipe 1 is operating normally, carbon dioxide gas flows through the filter element 5 in the slot 3 for filtration. When the filter element 5 needs to be replaced, the controller 9 starts the drive motor 73. The output end of the drive motor 73 drives the gear column 74 that meshes with it to rotate. When the gear column 74 rotates, it drives the rack 6 that meshes with it to move downward. The rack 6 is connected to the top of the upper filter element 5. The movement of the rack 6 drives the upper filter element 5 and its top limiting rod 81 to move under the guidance of the protective shell 4. When the rack 6 moves downward, the upper filter element 5 is pushed downward, pushing the lower filter element 5 out of the slot 3 from the filter pipe 1. At the same time, the upper filter element 5 enters the working position of the slot 3. At this time, the lower filter element 5 is exposed. The filter element 5 is exposed inside the protective housing 4 for easy replacement by staff, while the upper filter element 5 temporarily undertakes the task of filtering carbon dioxide, allowing for replacement without shutting down the machine. When the upper filter element 5 moves, the limiting rod 81 at its top drives the limiting plate 82 to move synchronously. When the limiting plate 82 descends to the set position, it contacts and presses the pressure-sensitive switch 83 fixed on the protective housing 4. The pressure-sensitive switch 83 then sends a signal to the controller 9. Upon receiving the signal, the controller 9 immediately stops the drive motor 73 to ensure that the upper filter element 5 is accurately positioned in the working position of the slot 3. After replacing the lower filter element 5, the drive motor 73 rotates in the opposite direction, driving the rack 6 and the upper filter element 5 to move upward and reset, ready for the next replacement operation.

[0027] Through the above steps, the transmission mechanism drives the rack 6 to move up and down. When the rack 6 moves downward, its bottom pushes the filter element 5 in the filter pipe 1 downward, while the spare filter element 5 at the top falls into the filter pipe 1 simultaneously. During this process, the spare filter element 5 can immediately take over the filtration function to ensure that carbon dioxide filtration is uninterrupted. The staff can safely remove the old filter element 5 that has been pushed out for replacement, realizing maintenance without stopping the machine. This solves the problem that if the filter element 5 needs to be replaced in the existing coal chemical carbon dioxide filtration device, the equipment needs to be shut down for a long time, which affects the operating efficiency.

Claims

1. A carbon dioxide filtration device, comprising a filter pipe (1); characterized in that: It also includes a rack (6), and connecting flanges (2) are provided at both ends of the filter pipe (1). A slot (3) is opened at the top of the filter pipe (1), and the slot (3) passes through the bottom of the filter pipe (1). A protective shell (4) is installed at the top of the filter pipe (1) corresponding to the slot (3). Two stacked filter elements (5) are installed inside the protective shell (4). The two filter elements (5) are fixed by screws. A rack (6) is installed on the top of the upper filter element (5). A transmission mechanism is provided on the top of the protective shell (4). The transmission mechanism is used to drive the rack (6) to move up and down. A limit mechanism is provided on the top of the upper filter element (5). A controller (9) is installed on the front of the protective shell (4).

2. The carbon dioxide filtration device according to claim 1, characterized in that: The transmission mechanism includes a mounting component and a drive component. The mounting component is used to position the drive component, and the drive component is used to drive the rack (6) to move up and down.

3. The carbon dioxide filtration device according to claim 2, characterized in that: The mounting components include a fixing plate (71) and fixing bolts (72); the top of the protective shell (4) is provided with a fixing plate (71), and fixing bolts (72) are connected to the four corners of the top of the fixing plate (71). The fixing plate (71) is fixed to the protective shell (4) by fixing bolts (72).

4. The carbon dioxide filtration device according to claim 3, characterized in that: The drive assembly includes a drive motor (73) and a gear (74); the top of the fixed plate (71) is provided with a drive motor (73), the output end of the drive motor (73) is connected to the gear (74), and the gear (74) meshes with the rack (6).

5. The carbon dioxide filtration device according to claim 4, characterized in that: The limiting mechanism includes a guide component and a trigger component. The guide component is used to limit the movement direction of the filter element (5), and the trigger component is used to stop the drive motor (73) from running.

6. The carbon dioxide filtration device according to claim 5, characterized in that: The guide assembly includes a limiting rod (81) and a limiting piece (82); the upper filter element (5) is provided with a limiting rod (81) at each of the four top corners, the limiting rod (81) is slidably connected to the top of the protective shell (4), and the limiting piece (82) is installed on the top of the limiting rod (81).

7. The carbon dioxide filtration device according to claim 6, characterized in that: A pressure-sensitive switch (83) is provided on the outside of the left front limit rod (81). The pressure-sensitive switch (83) is fixedly connected to the protective shell (4). The controller (9), the pressure-sensitive switch (83) and the drive motor (73) are electrically connected.

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