Silicon carbide ceramic membrane high-temperature-resistant filtering device

Abstract

The utility model discloses a silicon carbide ceramic membrane high-temperature-resistant filter device, which relates to the technical field of ceramic membrane filtration and comprises a filter box, a funnel cavity is arranged at the bottom of the filter box, an input pipeline is arranged at the funnel cavity, an output pipeline is arranged at the top of the filter box, and a partition wall is fixedly arranged above the funnel cavity of the filter box. A pulse gas pump is fixedly arranged on the outer side of the filter box; a motor is fixedly arranged on the outer side of the filter box; a rotating shaft is arranged at the output end of the motor; a rotating frame is fixedly arranged on the rotating shaft; and a ceramic filter plate is fixedly arranged between the two sealing frames on the lower frame. The high-temperature gas filtering device is simple in structure, capable of filtering high-temperature gas, capable of timely cleaning the ceramic membrane, provided with two working modes, high in practicability and suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of ceramic membrane filtration technology, specifically relating to a silicon carbide ceramic membrane high-temperature resistant filtration device. Background Technology

[0002] The chemical structure of silicon carbide (SiC) is based on the covalent bonding of carbon and silicon, forming a highly stable crystal structure. Silicon carbide ceramic membranes maintain structural stability at temperatures up to 1000°C, making them suitable for high-temperature flue gas desulfurization and denitrification, as well as gas purification in high-temperature chemical reactions. Their excellent thermal shock resistance makes them resistant to cracking under rapid temperature changes. When using ceramic membranes for filtration, filter media needs to be cleaned. To avoid affecting the operation of the device, backflushing with pulsed gas can be used for cleaning. However, pulsed gas is usually released at a fixed frequency, which cannot completely flush away accumulated filter media at once, leading to filter media buildup and blockage over time. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant silicon carbide ceramic membrane filtration device. It has a simple structure, is designed for filtering high-temperature gases, can clean the ceramic membrane in a timely manner, and has two working modes. It is highly practical and suitable for widespread application.

[0004] This utility model provides the following technical solution: a silicon carbide ceramic membrane high-temperature resistant filtration device, including a filter box, the bottom of the filter box is a funnel cavity, an input pipe is provided at the funnel cavity, an output pipe is provided at the top of the filter box, a partition wall is fixedly provided above the funnel cavity in the filter box, and ceramic filter tubes symmetrically mounted on the partition wall.

[0005] A pulse gas pump is fixedly installed on the outside of the filter box, and its output end is located above the ceramic filter tube.

[0006] A motor is fixedly installed on the outside of the filter box. A rotating shaft is installed at the output end of the motor. The rotating shaft is located at the midpoint of the lower ends of the two sets of ceramic filter tubes. A rotating frame is fixedly installed on the rotating shaft.

[0007] A lower frame is fixedly provided at the lower edge of the ceramic filter tube, and sealing frames are fixedly provided on the upper and lower sides of the rotating frame. The shape of the sealing frame matches the lower frame, and a ceramic filter plate is fixedly provided between the two sealing frames.

[0008] Preferably, the ceramic filter tube has a honeycomb hollow tube that runs vertically through the tube, and the hollow tube is sealed above by a docking seat. The pulse gas pump has a jet port above the docking seat via a pipeline.

[0009] Preferably, an arc-shaped pad is provided on the inner ring of the sealing frame, the arc-shaped pad being elastic and tightly connected to the outer wall of the lower frame.

[0010] Preferably, the bottom of the funnel cavity is provided with a slag discharge port, and when the rotating frame is in a vertical state, the input pipe is lower than the rotating frame.

[0011] The beneficial effects of this utility model are: simple structure, suitable for filtering high-temperature gases, timely cleaning of the ceramic membrane, and two working modes, making it highly practical, as detailed below:

[0012] (1) This utility model is equipped with a rotating frame. When the filter box is working, the flue gas enters from the input pipe. The two sets of ceramic filter tubes can filter according to specific needs. During normal use, the rotating frame blocks the bottom of one set of ceramic filter tubes. At this time, the other set of ceramic filter tubes works. The filter material of the flue gas enters the hollow tube and is blocked and filtered. The pulse gas pump rushes in pulse gas, and the backflow blows off the filter material in the hollow tube. After working for a period of time, if the filter material accumulates in the hollow tube, the motor drives the rotating frame to rotate. The rotating frame blocks the air intake of the set of ceramic filter tubes, and the other set of ceramic filter tubes works. At this time, the filter material no longer enters the hollow tube. The pulse gas pump injects pulse gas into it. Through multiple impacts, the accumulated material is gradually broken down. This ensures that the filter material will not accumulate in the holes of the ceramic filter tube because the pulse gas cannot completely flush down the filter material at one time. At the same time, the impact frequency of the pulse gas can be reduced, reducing the impact on the flue gas input.

[0013] (2) The present invention is provided with a ceramic filter plate, which seals the bottom of the ceramic filter tube. After the ceramic filter tube is sealed, the filter material in the flue gas is blocked below. When the ceramic filter tube is cleaned by pulse gas, the filter material below the ceramic filter plate is flushed down. When the ceramic filter plate rotates and blocks the ceramic filter tube on the other side, the filter material that is impacted by the ceramic filter tube and accumulated on the top of the ceramic filter plate is placed on the lower side and flushed away by the pulse gas, thus realizing the self-cleaning of the ceramic filter plate.

[0014] (3) This utility model is equipped with a rotating shaft. When filtering high-temperature gas through the ceramic filter tube, the idle ceramic filter tube is fully cleaned by group filtration. When the amount of flue gas output from the input pipe is large, the ceramic filter plate can be erected by rotating the shaft, and the two sets of ceramic filter tubes can work at the same time. When multiple pulse gas is required for thorough cleaning, the rotating shaft can be driven to rotate. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is an overall schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an enlarged view of point A of this utility model;

[0019] The following are labeled in the diagram: 1. Filter box; 2. Funnel cavity; 3. Input pipe; 4. Output pipe; 5. Pulse gas pump; 6. Motor; 7. Ceramic filter tube; 8. Partition wall; 9. Docking seat; 10. Air nozzle; 11. Lower frame; 12. Rotating shaft; 13. Rotating frame; 14. Ceramic filter plate; 15. Sealing frame; 16. Arc-shaped gasket; 17. Hollow tube; 18. Slag discharge port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] See Figure 1-2A high-temperature resistant silicon carbide ceramic membrane filtration device includes a filter box 1, a funnel cavity 2 at the bottom of the filter box 1, an input pipe 3 at the funnel cavity 2, an output pipe 4 at the top of the filter box 1, a partition wall 8 fixedly installed above the funnel cavity 2 in the filter box 1, and ceramic filter tubes 7 symmetrically mounted on the partition wall 8. A slag discharge port 18 is provided at the bottom of the funnel cavity 2, and the residue filtered from the ceramic filter tubes 7 falls into the slag discharge port 18. A pulse gas pump 5 is fixedly installed on the outside of the filter box 1, and its output end is located above the ceramic filter tubes 7. The ceramic filter tubes 7 have a honeycomb hollow tube 17 that runs vertically through the tubes. The hollow tubes 17 are sealed above by a docking seat 9. The pulse gas pump 5 has a jet port 10 above the docking seat 9 through a pipe. The pulse gas pump 5 pumps pulse gas into the ceramic filter tubes 7 to backwash and clean the filter material on the inner wall of the hollow tubes 17.

[0025] See Figure 1-3 A motor 6 is fixedly installed on the outside of the filter box 1. A rotating shaft 12 is installed at the output end of the motor 6. The motor 6 drives the rotating shaft 12 to rotate. The rotating shaft 12 is located at the midpoint of the lower end of the two sets of ceramic filter tubes 7. A rotating frame 13 is fixedly installed on the rotating shaft 12. A lower frame 11 is fixedly installed at the lower edge of the ceramic filter tube 7. Sealing frames 15 are fixedly installed on the upper and lower sides of the rotating frame 13. The shape of the sealing frame 15 matches the lower frame 11. The rotating shaft 12 drives the rotating frame 13 to rotate half a turn, so that the sealing frame 15 can rotate to the bottom of the other ceramic filter tube 7. A ceramic filter plate 14 is fixedly installed between the two sealing frames 15. An arc-shaped pad 16 is provided on the inner ring of the sealing frame 15. The arc-shaped pad 16 is elastic and tightly connected to the outer wall of the lower frame 11. When the sealing frame 15 rotates, it can undergo elastic deformation to cover the lower frame 11. When the rotating frame 13 is in a vertical state, the input pipe 3 is lower than the rotating frame 13. At this time, the two sets of ceramic filter tubes 7 operate together.

[0026] This utility model relates to a silicon carbide ceramic membrane high-temperature filtration device. It has a simple structure, is designed for filtering high-temperature gases, can clean the ceramic membrane in a timely manner, and has two working modes. It is highly practical and suitable for widespread application.

[0027] For specific usage, please refer to... Figure 1-2 When filtering high-temperature gas through ceramic filter tube 7, the idle ceramic filter tube 7 is thoroughly cleaned by group filtration. When the amount of flue gas output from the input pipe 3 is large, the ceramic filter plate 14 can be erected by rotating shaft 12, and the two groups of ceramic filter tubes 7 can work at the same time.

[0028] Reference Figure 1-3When the filter box 1 is working, the flue gas enters from the input pipe 3. The two sets of ceramic filter tubes 7 can filter according to specific needs. During normal use, the rotating frame 13 blocks one set of ceramic filter tubes 7. At this time, the other set of ceramic filter tubes 7 is working. The filter material of the flue gas enters the hollow tube 17 and is blocked and filtered. The pulse gas pump 5 injects pulse gas, and the backflow blows off the filter material in the hollow tube 17. After working for a period of time, if the filter material accumulates in the hollow tube 17, the motor 6 drives the rotating frame 13 to rotate. The rotating frame 13 blocks the air intake of the set of ceramic filter tubes 7, and the other set of ceramic filter tubes 7 is working. At this time, no more filter material enters the hollow tube 17. The pulse gas pump 5 injects pulse gas into it. Through multiple impacts, the accumulated material is gradually broken down, so as to ensure that the filter material does not accumulate in the holes of the ceramic filter tube 7 because the pulse gas cannot completely flush down the filter material at one time.

[0029] Reference Figure 2-3 The ceramic filter plate 14 is used to seal the bottom of the ceramic filter tube 7. After the ceramic filter tube 7 is sealed, the filter material in the flue gas is blocked below it. When the ceramic filter tube 7 is cleaned by pulse gas, the filter material below the ceramic filter plate 14 is flushed down. When the ceramic filter plate 14 rotates and blocks the ceramic filter tube 7 on the other side, the filter material that has been impacted by the ceramic filter tube 7 and accumulated on the top of the ceramic filter plate 14 is placed on the lower side and flushed away by the pulse gas, thus realizing the self-cleaning of the ceramic filter plate 14.

[0030] The above description is merely 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 high-temperature resistant silicon carbide ceramic membrane filtration device, comprising a filter box (1), wherein the bottom of the filter box (1) is a funnel cavity (2), an input pipe (3) is provided at the funnel cavity (2), and an output pipe (4) is provided at the top of the filter box (1), characterized in that, The filter box (1) is fixedly provided with a partition wall (8) above the funnel cavity (2), and the partition wall (8) is equipped with symmetrical ceramic filter tubes (7). A pulse gas pump (5) is fixedly installed on the outside of the filter box (1), and its output end is located above the ceramic filter tube (7); A motor (6) is fixedly installed on the outside of the filter box (1). A rotating shaft (12) is installed at the output end of the motor (6). The rotating shaft (12) is located at the midpoint of the lower end of the two sets of ceramic filter tubes (7). A rotating frame (13) is fixedly installed on the rotating shaft (12). The lower edge of the ceramic filter tube (7) is fixedly provided with a lower frame (11), and the upper and lower sides of the rotating frame (13) are fixedly provided with sealing frames (15). The shape of the sealing frame (15) matches the lower frame (11), and the lower frame (11) is fixedly provided with a ceramic filter plate (14) between the two sealing frames (15).

2. The high-temperature resistant silicon carbide ceramic membrane filtration device according to claim 1, characterized in that, The ceramic filter tube (7) has a honeycomb hollow tube (17) that runs vertically through the tube. The hollow tube (17) is sealed above by a docking seat (9). The pulse gas pump (5) has a jet port (10) above the docking seat (9) via a pipe.

3. The high-temperature resistant silicon carbide ceramic membrane filtration device according to claim 1, characterized in that, The inner ring of the sealing frame (15) is provided with an arc-shaped pad (16), which is elastic and tightly connected to the outer wall of the lower frame (11).

4. The high-temperature resistant silicon carbide ceramic membrane filtration device according to claim 1, characterized in that, The bottom of the funnel cavity (2) is provided with a slag discharge port (18). When the rotating frame (13) is in a vertical state, the input pipe (3) is lower than the rotating frame (13).

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