A flue gas purification device for environmental protection

Abstract

The utility model relates to flue gas purification technical field, and disclose a kind of flue gas purification device for environmental protection, differential pressure sensor is set on pipeline, and the pressure point of two differential pressure sensors is located at the two sides of filter layer respectively, controller and electric push rod one, electric push rod two and differential pressure sensor electric connection.Differential pressure sensor real-time acquisition pressure difference before and after filter layer, when pressure difference is greater than preset block threshold, controller determines filter layer block, controller first controls electric push rod one elongation, new filter layer gradually ejects old filter layer in pipeline, when electric push rod one reaches preset position with new filter layer, electric push rod one retracts to standby position, electric push rod two in turn elongation, push plate two promotes the overall forward movement of remaining new filter layer in frame, and the next piece new filter layer is pushed to " waits to push into position '', controller records this replacement completion at this time, differential pressure sensor starts monitoring pressure difference of new filter layer again, enters next cycle.

Description

Technical Field

[0001] This utility model relates to the field of flue gas purification technology, specifically a flue gas purification device for environmental protection. Background Technology

[0002] Environmental protection generally refers to all actions taken by humankind to solve existing or potential environmental problems, coordinate the relationship between humans and the environment, protect the human living environment, and ensure the sustainable development of the economy and society. Flue gas purification is an important part of environmental protection. Existing purification devices mostly require coarse filtration of dust and impurities in flue gas through filter layers. After prolonged use, the gaps in the filter layers become severely clogged, resulting in a significant decrease in filtration efficiency and air permeability, necessitating replacement. Furthermore, the flue gas treated by flue gas purification boxes often contains toxic and harmful components, posing safety hazards to operators during maintenance. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a flue gas purification device for environmental protection. It has the advantage of easy replacement of the filter layer, solving the problem that after long-term use, the filter layer gaps become severely clogged, resulting in a significant decrease in filtration effect and air permeability, requiring replacement. Furthermore, the flue gas treated by the flue gas purification box often contains toxic and harmful components, posing safety hazards to operators during maintenance.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a flue gas purification device for environmental protection, comprising a main component, wherein the main component includes: The pipe is equipped with a filter layer, and the outer wall of the filter layer is embedded with a sealing ring. The purification box is connected to the outlet end of the pipeline; A controller is disposed on the outer wall of the purification box, and the purification box is electrically connected to the controller; The pipeline and the controller are equipped with a replacement component, the replacement component comprising: A support is provided below the pipe; The frame is fixedly connected to the top of the support, and the filter layer is neatly stored inside the frame; Electric push rod one is mounted on the support; Push plate one is fixedly connected to the output shaft of electric push rod one, and push plate one is slidably connected to the top of the support; Electric push rod two is mounted on the support; Push plate two is fixedly connected to the output shaft of electric push rod two, and push plate two is slidably connected to the frame body. Push plate two is higher than the filter layer. A differential pressure sensor is installed on the pipeline. The two pressure taps of the differential pressure sensor are located on both sides of the filter layer. The controller is electrically connected to the first electric push rod, the second electric push rod, and the differential pressure sensor.

[0005] Preferably, a contact switch is provided on the inner wall of the frame on the side away from the electric push rod 2, and the contact switch is electrically connected to the controller.

[0006] Preferably, a cover plate is slidably connected to the top of the frame, and a handle is fixedly connected to the top of the cover plate.

[0007] Preferably, the top of the support is provided with a guide groove, and the filter layer is slidably connected in the guide groove.

[0008] Preferably, a guide frame is fixedly connected to the outer wall of the frame, and the filter layer is slidably connected to the guide frame.

[0009] Preferably, a collection frame is provided below the support.

[0010] (III) Beneficial Effects Compared with the prior art, this utility model provides a flue gas purification device for environmental protection, which has the following beneficial effects: This purification device features easy filter layer replacement. A differential pressure sensor continuously monitors the pressure difference before and after the filter layer. When the pressure difference exceeds a preset clogging threshold, the controller determines the filter layer is clogged. The controller then extends an electric push rod, causing the new filter layer to move forward along the support under the force of a push plate, gradually pushing the old filter layer out of the pipe. Once the electric push rod reaches the preset position, the controller retracts it to a standby position. Then, it extends another electric push rod, pushing the remaining new filter layer in the frame forward, pushing the next new filter layer to the "push-in position." At this point, the controller records the replacement as complete, and the differential pressure sensor restarts monitoring the pressure difference of the new filter layer, entering the next cycle. This solves the problem of severe clogging of filter layer gaps after prolonged use, leading to a significant decrease in filtration efficiency and air permeability, necessitating replacement. Furthermore, the flue gas treated by the flue gas purification box often contains toxic and harmful components, posing safety hazards for operators during maintenance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cover plate removal structure in this utility model; Figure 3This is a schematic diagram of the filter layer replacement structure in this utility model; Figure 4 This is a schematic diagram of the left-side cross-sectional structure of the pipeline in this utility model; Figure 5 This is a top view of the frame structure in this utility model.

[0012] In the picture: 1. Main components; 11. Piping; 12. Filter layer; 13. Purification chamber; 14. Controller; 2. Replacement components; 21. Support; 22. Frame; 23. Electric push rod one; 24. Push plate one; 25. Electric push rod two; 26. Push plate two; 27. Differential pressure sensor; 3. Cover plate; 31. Handle; 4. Contact switch; 5. Guide groove; 6. Guide frame; 7. Collection box. Detailed Implementation

[0013] 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.

[0014] Example 1 See Figure 1-5A flue gas purification device for environmental protection includes a main component 1, which includes: a pipe 11 on which a filter layer 12 is disposed, and sealing rings are embedded in the outer walls of the filter layer 12; a purification box 13 connected to the output end of the pipe 11; a controller 14 disposed on the outer wall of the purification box 13, and the purification box 13 and the controller 14 are electrically connected; a replacement component 2 is disposed on the pipe 11 and the controller 14, the replacement component 2 including: a support 21 disposed below the pipe 11; a frame 22 fixedly connected to the top of the support 21, and the filter layer 12 is neatly stored inside the frame 22; and an electric push rod 23. The frame 22 is mounted on the support 21; a push plate 24 is fixedly connected to the output shaft of the electric push rod 23, and the push plate 24 is slidably connected to the top of the support 21; an electric push rod 25 is mounted on the support 21; a push plate 26 is fixedly connected to the output shaft of the electric push rod 25, and the push plate 26 is slidably connected inside the frame 22, and the push plate 26 is higher than the filter layer 12; a differential pressure sensor 27 is mounted on the pipe 11, and the two pressure taps of the differential pressure sensor 27 are located on both sides of the filter layer 12 respectively; the controller 14 is electrically connected to the electric push rod 23, the electric push rod 25, and the differential pressure sensor 27. A contact switch 4 is provided on the inner wall of the frame 22 away from the electric push rod 25, and the contact switch 4 is electrically connected to the controller 14. A cover plate 3 is slidably connected to the top of the frame 22, and a handle 31 is fixedly connected to the top of the cover plate 3.

[0015] In use, the flue gas to be purified is introduced into the pipe 11. The flue gas is first filtered by the filter layer 12 and then purified by the purification box 13. The differential pressure sensor 27 collects the pressure difference before and after the filter layer 12 in real time. When the pressure difference is greater than the preset blockage threshold, the controller 14 determines that the filter layer 12 is blocked. The controller 14 first sends an "extend" signal to the electric push rod 23. Under the pushing force of the push plate 24, the new filter layer 12 moves forward along the support 21, gradually pushing the old filter layer 12 out of the pipe 11. The motor inside the electric push rod 23 has an encoder that converts the number of motor rotations into the linear displacement of the push rod output shaft in real time. The controller 14 presets the "target displacement value" so that the electric push rod 23 accurately pushes the new filter layer 12 to the appropriate position. The sealing ring on the outside of the filter layer 12 achieves a sealing effect. When the electric push rod 23 controls the filter layer 12 to reach the preset position, the controller 14 controls the electric push rod 23 to retract to the standby position, and then controls the electric push rod 25 to extend. The push plate 26 pushes the remaining new filter layer 12 in the frame 22 forward, pushing the next new filter layer 12 to the "push-in position". At this time, the controller 14 records the replacement as complete, and the differential pressure sensor 27 restarts to monitor the differential pressure of the new filter layer 12, entering the next cycle. The motor in the electric push rod 25 also has an encoder. The controller 14 presets the "target displacement value" to the thickness of the filter layer 12 to facilitate pushing the filter layer 12 to the appropriate position, and it automatically stops after reaching the target position. When the filter layer 12 inside the frame 22 is depleted, the electric push rod 25 pushes the push plate 26 to contact the inner wall of the frame 22. The push plate 26 then contacts the contact switch 4. The contact switch 4 has a movable contact inside. When the push plate 26 contacts and presses the contact, the contact will cause the internal contacts to open or close, outputting an electrical signal. The controller 14 determines whether there is an object in contact by recognizing the signal change. When the push plate 26 contacts the contact switch 4, it is determined that "the filter layer 12 is exhausted," and the controller 14 remotely prompts the operator that "the filter layer 12 needs to be replenished." The operator slides the cover plate 3 down from the top of the frame 22 using the handle 31 to facilitate replenishing the filter layer 12 and avoid affecting the automatic replacement effect of the filter layer 12.

[0016] The aforementioned purification chamber 13 is internally equipped with a spray tower, nozzles, a packing layer, and a circulating water tank. The nozzles are located above the packing layer, and the circulating water tank stores absorbent liquid for removing acidic or alkaline gases. An activated carbon adsorption layer removes odors. After purification, the flue gas may carry residual moisture, trace pollutants, or produce solid / liquid byproducts, which need to be treated by a post-dehydration / demister assembly. As long as the purification effect on the flue gas is achieved, the specific structure will not be described in detail here.

[0017] Example 2 An auxiliary function has been added based on Embodiment 1.

[0018] See Figure 1-5 The support 21 has a guide groove 5 at its top, and the filter layer 12 is slidably connected to the guide groove 5. A guide frame 6 is fixedly connected to the outer wall of the frame 22, and the filter layer 12 is slidably connected to the guide frame 6. A collection frame 7 is provided below the support 21.

[0019] The guide groove 5 and the top guide frame 6 together achieve stability, accuracy, and safety in the movement of the filter layer 12 through "bottom constraint" and "top constraint" respectively. After the push plate 24 replaces the filter layer 12, the old filter layer 12 is pushed into the collection frame 7 for collection, facilitating subsequent processing by the operator.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas purification device for environmental protection, comprising a main component (1), said main component (1) comprising: The pipe (11) is provided with a filter layer (12), and the outer walls of the filter layer (12) are all embedded with sealing rings; The purification box (13) is connected to the output end of the pipe (11); A controller (14) is disposed on the outer wall of the purification box (13), and the purification box (13) is electrically connected to the controller (14); The feature is that a replacement component (2) is provided on the pipe (11) and the controller (14), the replacement component (2) comprising: Support (21) is provided below the pipe (11); The frame (22) is fixedly connected to the top of the support (21), and the filter layer (12) is neatly stored inside the frame (22). An electric push rod (23) is mounted on the support (21); Push plate 1 (24) is fixedly connected to the output shaft of electric push rod 1 (23), and push plate 1 (24) is slidably connected to the top of support (21); Electric push rod 2 (25) is mounted on the support (21); Push plate two (26) is fixedly connected to the output shaft of electric push rod two (25), push plate two (26) is slidably connected inside the frame (22), and push plate two (26) is higher than the filter layer (12). A differential pressure sensor (27) is installed on the pipeline (11). The two pressure taps of the differential pressure sensor (27) are located on both sides of the filter layer (12). The controller (14) is electrically connected to the electric push rod one (23), the electric push rod two (25) and the differential pressure sensor (27).

2. The flue gas purification device for environmental protection according to claim 1, characterized in that: A contact switch (4) is provided on the inner wall of the frame (22) away from the electric push rod (25), and the contact switch (4) is electrically connected to the controller (14).

3. The flue gas purification device for environmental protection according to claim 2, characterized in that: The top of the frame (22) is slidably connected to a cover plate (3), and the top of the cover plate (3) is fixedly connected to a handle (31).

4. The flue gas purification device for environmental protection according to claim 3, characterized in that: The support (21) has a guide groove (5) at the top, and the filter layer (12) is slidably connected in the guide groove (5).

5. A flue gas purification device for environmental protection according to claim 4, characterized in that: The outer wall of the frame (22) is fixedly connected to a guide frame (6), and the filter layer (12) is slidably connected inside the guide frame (6).

6. A flue gas purification device for environmental protection according to claim 5, characterized in that: A collection box (7) is provided below the support (21).

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