Ammonium bicarbonate desulfurization tower outlet gas impurity filtration device

Abstract

This utility model discloses a gas impurity filtration device for the outlet gas of an ammonium bicarbonate desulfurization tower, relating to the field of environmental protection equipment technology. The utility model comprises a desulfurization tower body, a lower base, an upper tank, multiple support frames, a conical cover, and a filtration mechanism. The filtration mechanism consists of a slot, a locking block, a filter cylinder, a first conical filter frame, a second conical filter frame, and a third conical filter frame. The slot is located on the inner circumference of the upper tank, the locking block engages within the slot, and the filter cylinder is fixedly connected to the side of the locking block. The first and second conical filter frames are positioned facing upwards on the lower side of the filter cylinder, while the third conical filter frame is positioned in the opposite direction on the upper side of the filter cylinder. Furthermore, through the circulating filtration structure of the connecting pipe and the filter box, and the design of the inspection door, multi-stage filtration of gas impurities and convenient maintenance are achieved. This device, through multi-stage filtration and circulating purification design, improves gas filtration efficiency and purification effect, and enhances the maintainability and operational stability of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection equipment technology, and in particular relates to a filter device for impurities in the outlet gas of an ammonium bicarbonate desulfurization tower. Background Technology

[0002] Currently, ammonium bicarbonate desulfurization tower outlet gas impurity filtration devices are widely used in desulfurization processes in industries such as chemical, power, and metallurgy, as key supporting equipment in flue gas purification systems. These devices are primarily used to filter and purify the outlet gas after the desulfurization reaction, reducing the content of residual particulate matter, unreacted substances, and other harmful components in the gas, thereby meeting environmental emission standards and industrial production requirements.

[0003] In existing technologies, some desulfurization tower outlet gas treatment devices already possess a certain filtration capacity, such as employing multi-stage filter cartridge structures, cyclone separation, or wet scrubbing to perform preliminary separation and purification of impurities in the gas. Some devices are also equipped with removable filter elements, drain ports, and pressure monitoring devices, improving the operational adaptability and reliability of the equipment. With the development of environmental protection technologies, existing filtration devices are also continuously making progress in terms of structural optimization and material upgrades.

[0004] However, in actual operation, problems still exist such as uneven gas flow distribution, insufficient synergy of multi-stage filtration, and inconvenient filter media replacement. Especially when dealing with high-concentration impurity gases or complex operating conditions, how to further improve filtration efficiency, enhance the continuity of system operation, and achieve convenient equipment maintenance has become one of the important directions for current technological improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a gas impurity filtration device for the outlet gas of an ammonium bicarbonate desulfurization tower. Through the combination of a multi-stage conical filter frame and a filter cylinder structure, as well as the linkage structure of the filter box and the connecting pipe for circulating filtration, it solves the problems of incomplete gas filtration, low impurity removal efficiency, and inconvenient filter material replacement and maintenance in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model is a filter device for impurities in the outlet gas of an ammonium bicarbonate desulfurization tower, including the desulfurization tower body;

[0008] The lower seat is fixedly connected to the lower end of the desulfurization tower body;

[0009] The upper tank is fixedly connected to the upper end of the desulfurization tower body;

[0010] The filtration mechanism includes a slot, a block, a filter cylinder, a first conical filter frame, a second conical filter frame, and a third conical filter frame. The slot is formed on the inner circumference of the upper tank. The block is engaged in the slot. The filter cylinder is fixedly connected to the side end of the block. The filter cylinder matches the upper tank. The first and second conical filter frames are both connected to the lower side of the inner circumference of the filter cylinder. The third conical filter frame is connected to the upper side of the inner circumference of the filter cylinder. The first and second conical filter frames are arranged in the forward direction, and the third conical filter frame is arranged in the reverse direction.

[0011] The present invention is further configured such that the upper end of the upper tank is connected to a plurality of support frames by bolts and threads, and the upper ends of the plurality of support frames are connected to conical covers.

[0012] The present invention is further configured such that a lower frame is fixedly connected to the lower end of the lower base, a base is fixedly connected to the lower end of the lower frame, and a crossbar is fixedly connected to the side end of the lower frame.

[0013] The present invention is further configured such that an upper guardrail is fixedly connected to the upper end of the desulfurization tower body, and a staircase is connected to the side end of the upper guardrail. The staircase is connected to the upper guardrail and the desulfurization tower body respectively by bolts.

[0014] The present invention is further configured such that a connecting pipe is fixedly connected to the upper side of the desulfurization tower body, the connecting pipe extends downward to the lower end of the desulfurization tower body, and a filter box is connected to the lower circumferential surface of the desulfurization tower body, the filter box being connected to the connecting pipe.

[0015] The present invention is further configured such that the lower end of the filter box is connected to two inlets and outlets, and the two inlets and outlets are connected to the lower end of the connecting pipe.

[0016] The present invention is further configured such that a maintenance door is rotatably connected to the side end of the desulfurization tower body via a rotating shaft, and a handle is fixedly connected to the side end of the maintenance door.

[0017] The present invention has the following beneficial effects.

[0018] 1. This utility model, through the combination of multi-stage conical filter frames and filter cartridge structures, enables the gas at the outlet of the desulfurization tower to be filtered step by step during the circulation process, effectively removing impurity particles of different sizes; thus, it significantly improves gas purification efficiency and emission quality, meeting increasingly stringent environmental emission requirements.

[0019] 2. This utility model, through the circulating filtration structure between the filter box and the connecting pipe, combined with the design of a detachable filter cartridge and inspection door, makes filter media replacement and equipment maintenance more convenient and efficient; thus, while ensuring continuous system operation, it reduces maintenance costs and downtime, and improves the overall practicality and operational reliability of the equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 A perspective view of the impurity filtration device for the outlet gas of the ammonium bicarbonate desulfurization tower;

[0022] Figure 2 Exploded view of the impurity filtration device at the outlet gas of the ammonium bicarbonate desulfurization tower;

[0023] Figure 3 Filtering device for impurities in the outlet gas of ammonium bicarbonate desulfurization tower Figure 2 Enlarged view of the upper middle section of the can;

[0024] Figure 4 Filtering device for impurities in the outlet gas of ammonium bicarbonate desulfurization tower Figure 3 An explosion diagram of the upper and middle tanks.

[0025] In the attached diagram: 1. Desulfurization tower body; 2. Lower seat; 3. Upper tank; 4. Support frame; 5. Conical cover; 6. Slot; 7. Locking block; 8. Filter cartridge; 9. First conical filter frame; 10. Second conical filter frame; 11. Third conical filter frame; 12. Lower frame; 13. Base; 14. Horizontal frame; 15. Connecting pipe; 16. Filter box; 17. Inlet and outlet; 18. Inspection door; 19. Upper guardrail; 20. Stairs; 21. Handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0027] Please see Figure 1-4 The present invention provides the following technical solution:

[0028] The ammonium bicarbonate desulfurization tower outlet gas impurity filtration device includes:

[0029] Desulfurization tower body 1;

[0030] Lower seat 2 is fixedly connected to the lower end of the desulfurization tower body 1;

[0031] Upper tank 3 is fixedly connected to the upper end of the desulfurization tower body 1;

[0032] The filtration mechanism includes a slot 6, a block 7, a filter cylinder 8, a first conical filter frame 9, a second conical filter frame 10, and a third conical filter frame 11. The slot 6 is formed on the inner circumference of the upper tank 3. The block 7 is engaged in the slot 6. The filter cylinder 8 is fixedly connected to the side end of the block 7. The filter cylinder 8 matches the upper tank 3. The first conical filter frame 9 and the second conical filter frame 10 are both connected to the lower side of the inner circumference of the filter cylinder 8. The third conical filter frame 11 is connected to the upper side of the inner circumference of the filter cylinder 8. The first conical filter frame 9 and the second conical filter frame 10 are arranged in the forward direction, while the third conical filter frame 11 is arranged in the reverse direction.

[0033] In a specific embodiment of this utility model, after the desulfurization tower body 1 completes the desulfurization reaction, the treated gas enters the upper tank 3 from the top of the tower body; in this way, the gas undergoes preliminary stabilization and guidance before entering the subsequent filtration structure, providing a basis for efficient filtration.

[0034] When the inner circumferential wall of the upper tank 3 is provided with a slot 6 and engages with the locking block 7, the filter cartridge 8 is fixedly installed inside the upper tank 3 through the locking block 7; in this way, the filter cartridge structure can be quickly disassembled and installed, which is convenient for maintenance and replacement, while ensuring that the installation is stable and the seal is good.

[0035] When the filter cartridge 8 is equipped with a first conical filter frame 9 and a second conical filter frame 10, and the two are arranged in a positive direction, the gas is initially intercepted and filtered when it passes through, removing larger particulate impurities; in this way, the filtration efficiency is improved, while reducing the burden on the subsequent filtration structure.

[0036] As the gas continues to rise to the upper part of the filter cartridge 8, the third conical filter frame 11 is connected to the inner wall of the filter cartridge in a reverse configuration to intercept and filter the gas in the opposite direction. In this way, it can effectively capture fine impurity particles that rise with the airflow, further improve the filtration accuracy, and ensure the cleanliness of the outlet gas.

[0037] After filtration is complete, operators can inspect or replace the filter cartridge 8 and conical filter frame through the inspection door 18; this improves the maintainability and operational stability of the equipment and ensures long-term efficient operation of the device.

[0038] Please refer to the details. Figure 1-4 The upper end of the upper tank 3 is connected to multiple support frames 4 by bolts and threads, and the upper end of the multiple support frames 4 is connected to a conical cover 5.

[0039] In this embodiment: when the upper end of the upper tank 3 is connected to multiple support frames 4 by bolt threads, the support frames 4 are evenly distributed and match the bottom structure of the conical cover 5; in this way, the support frames provide a stable support foundation for the conical cover and ensure that it is installed firmly and sealed well.

[0040] When the conical cover 5 is connected to the upper end of multiple support frames 4, its inclined structure helps to guide the gas to flow in a concentrated manner to the filtration mechanism, while avoiding the accumulation of impurities at the top; thus, the gas flow efficiency is improved, and the overall dustproof and drainage performance of the device is enhanced.

[0041] When maintenance or replacement of the conical cover 5 or the support frame 4 is required, the operator can quickly separate them by removing the bolts; this improves the disassembly and maintenance convenience of the equipment, shortens maintenance time, and improves the operating efficiency of the equipment.

[0042] In this way, when the gas from the desulfurization tower outlet enters the upper tank 3, it is first initially guided by the conical cover 5 and maintains structural integrity and sealing under the stable support of the support frame 4. Thus, when the gas processing volume changes or the external environment fluctuates, the device can still maintain a stable operating state, ensuring the continuous and efficient operation of the filtration system.

[0043] Please refer to the details. Figure 1-4 The lower end of the lower seat 2 is fixedly connected to the lower frame 12, the lower end of the lower frame 12 is fixedly connected to the base 13, and the side end of the lower frame 12 is fixedly connected to the cross frame 14.

[0044] In this embodiment: when the lower end of the lower seat 2 is fixedly connected to the lower frame 12, and the lower end of the lower frame 12 is fixedly connected to the base 13, the base provides a stable support foundation for the entire desulfurization tower device; in this way, it ensures that the equipment has good stability and load-bearing capacity during operation, and prevents the structure from loosening due to vibration or airflow impact.

[0045] When a crossbeam 14 is fixedly connected to the side of the lower frame 12, the crossbeam strengthens and fixes the lower frame structure, enhancing the rigidity of the overall frame. In this way, the deformation resistance and safety of the structure can be effectively improved during equipment operation or maintenance.

[0046] When the equipment needs to be installed or moved, the base 13 is fixedly connected to the ground or installation platform, and the crossbeam 14 can also be used as an auxiliary support or connecting component for installing other auxiliary equipment or pipeline structures; thus, the adaptability and expandability of the device in practical applications are improved.

[0047] Please refer to the details. Figure 1-4 The upper end of the desulfurization tower body 1 is fixedly connected to an upper guardrail 19, and the side end of the upper guardrail 19 is connected to a staircase 20. The staircase 20 is connected to the upper guardrail 19 and the desulfurization tower body 1 by bolts.

[0048] In this embodiment: when the upper guardrail 19 is fixedly connected to the upper end of the desulfurization tower body 1, the upper guardrail is set around the maintenance area, providing safety protection for high-altitude operations; in this way, the personal safety of operators is guaranteed when performing equipment maintenance or inspection, which meets the safety specifications of industrial equipment.

[0049] When the upper guardrail 19 is connected to the side of the staircase 20, and the staircase is connected to the upper guardrail 19 and the desulfurization tower body 1 by bolts, the staircase forms a stable upper and lower passage. This makes it easier for operators to safely and conveniently reach the upper tank 3 and the conical cover 5 area for maintenance or replacement of filter cartridges 8, thus improving the maintainability of the equipment.

[0050] When it is necessary to inspect the filtration mechanism or the internal structure of the upper tank, the operator can climb to the top working area via the stairs 20 and operate under the protection of the upper guardrail 19; this effectively improves the ease of operation and safety of the equipment.

[0051] Please refer to the details. Figure 1-4 A connecting pipe 15 is fixedly connected to the upper side of the desulfurization tower body 1. The connecting pipe 15 extends downward to the lower end of the desulfurization tower body 1. A filter box 16 is connected to the lower circumferential surface of the desulfurization tower body 1. The filter box 16 is connected to the connecting pipe 15.

[0052] In this embodiment: when a connecting pipe 15 is fixedly connected to the upper side of the desulfurization tower body 1, and the connecting pipe 15 extends downward to the lower end of the desulfurization tower body 1, the connecting pipe provides a stable flow channel for gas or liquid media; in this way, it is convenient to transport the gas or reactants processed in the upper part to the lower structure, so as to realize the circulation and processing of media inside the system.

[0053] When a filter box 16 is connected to the lower part of the circumferential surface of the desulfurization tower body 1, and the filter box 16 is connected to the connecting pipe 15, the filter box is used to perform secondary filtration and purification on the medium flowing through the connecting pipe; in this way, residual impurities can be effectively removed, and the efficiency of desulfurization treatment and the cleanliness of the exhaust gas can be improved.

[0054] When the gas or liquid in the connecting pipe 15 enters the filter box 16, it undergoes fine filtration by the filter material inside the filter box, and impurities are intercepted. The cleaning medium is then discharged or returned to the system. In this way, the operational stability and environmental performance of the entire desulfurization system are ensured.

[0055] Please refer to the details. Figure 1-4 The lower end of the filter box 16 is connected to two inlets and outlets 17, which are connected to the lower end of the connecting pipe 15.

[0056] In this embodiment: when the lower end of the filter box 16 is connected to two inlets and outlets 17, and the two inlets and outlets 17 are connected to the lower end of the connecting pipe 15, the inlets and outlets provide a stable medium flow path between the filter box and the connecting pipe; in this way, the gas or liquid is ensured to circulate smoothly between the desulfurization tower body 1 and the filter box, thereby improving the connectivity and operating efficiency of the overall system.

[0057] When the filter box 16 is bidirectionally connected to the connecting pipe 15 through the inlet and outlet 17, one inlet and outlet is used for the medium to flow into the filter box, and the other is used for the filtered medium to flow out. In this way, a clear flow direction is formed, which is conducive to improving filtration efficiency and reducing the risk of blockage, and ensuring the stable operation of the system.

[0058] When maintenance or replacement of the filter media is required for the filter box 16, the operator can quickly separate it by disassembling the connection structure between the inlet / outlet 17 and the connecting pipe 15. This improves the maintainability of the equipment, facilitates regular cleaning or replacement, and extends the service life of the equipment.

[0059] Please refer to the details. Figure 1-4 The side end of the desulfurization tower body 1 is rotatably connected to an inspection door 18 via a rotating shaft, and the side end of the inspection door 18 is fixedly connected to a handle 21.

[0060] In this embodiment: when the side end of the desulfurization tower body 1 is rotatably connected to the inspection door 18 via a rotating shaft, the inspection door can be opened and closed around the rotating shaft; in this way, a convenient inspection channel is provided for the operator, which facilitates the regular inspection or maintenance of components such as the tower's filter structure, connecting pipelines and filter box 16.

[0061] When a handle 21 is fixedly connected to the side end of the maintenance door 18, the operator can easily open or close the maintenance door by holding the handle; this improves the convenience and safety of operation, especially in the case of frequent maintenance or emergency repairs, enabling a quick response and improving equipment operation and maintenance efficiency.

[0062] When it is necessary to clean or replace components such as filter cartridge 8 and conical filter frame inside the desulfurization tower, the internal structure can be directly accessed by opening the inspection door 18; this avoids the complicated operation caused by overall disassembly, reduces the difficulty of maintenance, and improves the operability and practicality of the equipment.

[0063] The working principle of this utility model is as follows: After the equipment is transported to the installation site, the desulfurization tower body 1 is fixedly installed on the base 13 via the lower seat 2, ensuring that the lower frame 12 and the cross frame 14 stably support the entire structure; thus, a stable installation foundation is provided for the operation of the equipment; after the desulfurization tower body 1 is installed, the staircase 20 is connected to the upper guardrail 19 and the desulfurization tower body 1 respectively with bolts, ensuring that operators can safely climb to the top to operate; thus, the operability and safety of the equipment are improved; after the upper tank 3 is installed, the filter cartridge 8 is installed inside the upper tank through the cooperation of the slot 6 and the locking block 7. Ensure the filter cartridge is sealed to the upper tank; this provides a reliable working environment for subsequent gas filtration. After the desulfurization reaction is complete, the outlet gas enters the upper tank 3 from the top of the desulfurization tower body 1; thus, the gas begins its multi-stage filtration process. When the gas enters the filter cartridge 8, it first passes through the first conical filter frame 9 and the second conical filter frame 10, which are arranged in a forward orientation, to initially intercept larger particulate impurities; this improves filtration efficiency and reduces the burden on subsequent filtration. When the gas continues to rise to the top of the filter cartridge 8, the third conical filter frame 11, arranged in a reverse orientation, performs a second interception of the gas, further improving filtration efficiency. The first step removes fine impurities and particles, ensuring that the outlet gas meets emission standards and reducing environmental pollution. After the filtered gas exits from the conical cover 5, some of the gas may be transported downwards through the connecting pipe 15 to the filter box 16 for secondary filtration. This achieves multi-stage purification, improving the overall desulfurization and filtration effect. When gas or liquid media enters the filter box 16, it is connected to the connecting pipe 15 through two inlets and outlets 17 to complete the circulation filtration of the media. This ensures the cleanliness of the system interior and prevents impurities from accumulating and affecting equipment operating efficiency. When it is necessary to replace or clean the filter cartridge 8 or the conical filter frame... During cleaning, operators can open the maintenance door 18 via the pivot and easily open and close it using the handle 21; this improves the maintainability and maintenance efficiency of the equipment. When cleaning the filter box 16 is required, the inlet and outlet connection structure between it and the connecting pipe 15 can be disassembled for quick separation and maintenance; this ensures long-term stable operation of the equipment and extends its service life. After the equipment has been running for a period of time, the operator can periodically climb to the top via the stairs 20 to check the sealing and structural integrity of the area between the upper tank 3 and the conical cover 5; this ensures that the equipment can maintain good operating condition even under complex working conditions.

[0064] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0065] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. Ammonium bicarbonate desulfurization tower outlet gas impurity filtering device, characterized in that, include: Desulfurization tower body (1); The lower seat (2) is fixedly connected to the lower end of the desulfurization tower body (1); Upper tank (3), which is fixedly connected to the upper end of the desulfurization tower body (1); The filtration mechanism includes a slot (6), a block (7), a filter cylinder (8), a first conical filter frame (9), a second conical filter frame (10), and a third conical filter frame (11). The slot (6) is opened on the inner circumference of the upper tank (3). The block (7) is engaged in the slot (6). The side end of the block (7) is fixedly connected to the filter cylinder (8). The filter cylinder (8) matches the upper tank (3). The first conical filter frame (9) and the second conical filter frame (10) are both connected to the lower side of the inner circumference of the filter cylinder (8). The third conical filter frame (11) is connected to the upper side of the inner circumference of the filter cylinder (8). The first conical filter frame (9) and the second conical filter frame (10) are arranged in the forward direction, and the third conical filter frame (11) is arranged in the reverse direction.

2. The ammonium bicarbonate desulfurization tower outlet gas impurity filtration device according to claim 1, characterized in that: The upper end of the upper tank (3) is connected to multiple support frames (4) by bolt threads, and the upper ends of the multiple support frames (4) are connected to conical covers (5).

3. The ammonium bicarbonate desulfurization tower outlet gas impurity filtering device according to claim 2, characterized in that: The lower end of the lower seat (2) is fixedly connected to the lower frame (12), the lower end of the lower frame (12) is fixedly connected to the base (13), and the side end of the lower frame (12) is fixedly connected to the cross frame (14).

4. The ammonium bicarbonate desulfurization tower outlet gas impurity filtering device according to claim 3, characterized in that: The upper end of the desulfurization tower body (1) is fixedly connected to an upper guardrail (19), and the side end of the upper guardrail (19) is connected to a staircase (20). The staircase (20) is connected to the upper guardrail (19) and the desulfurization tower body (1) by bolts.

5. The ammonium bicarbonate desulfurization tower outlet gas impurity filtering device according to claim 4, characterized in that: A connecting pipe (15) is fixedly connected to the upper side of the desulfurization tower body (1). The connecting pipe (15) extends downward to the lower end of the desulfurization tower body (1). A filter box (16) is connected to the lower part of the circumferential surface of the desulfurization tower body (1). The filter box (16) is connected to the connecting pipe (15).

6. The ammonium bicarbonate desulfurization tower exit gas impurity filtering device according to claim 5, characterized in that: The lower end of the filter box (16) is connected to two inlets and outlets (17), and the two inlets and outlets (17) are connected to the lower end of the connecting pipe (15).

7. The ammonium bicarbonate desulfurization tower outlet gas impurity filtration device according to claim 6, characterized in that: The side end of the desulfurization tower body (1) is rotatably connected to an inspection door (18) via a rotating shaft, and the side end of the inspection door (18) is fixedly connected to a handle (21).

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