Flue gas purification system
By introducing vibration mechanism and spray system into the flue gas purification system, the problems of filter clogging and environmental pollution during the flue gas treatment process are solved, and lower maintenance costs and higher purification effects are achieved.
Patent Information
- Application Number
- CN202421646073.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-11
AI Technical Summary
During the flue gas treatment process, the filter screen is easily blocked due to the accumulation of dust particles, which requires frequent replacement, which increases the cleaning cost. At the same time, the components and content of harmful substances in the flue gas are diverse, making it difficult to effectively purify, resulting in environmental pollution.
Design a flue gas purification system, including a vibration mechanism and a spray system. The vibration mechanism drives the first filter to vibrate through the central rod, cam and bevel gear transmission, and shoots down the adhered dust particles; the spray system uses a water pump and a spray head to absorb smoke.
It effectively avoids filter clogging, reduces the frequency of filter replacement, reduces maintenance costs, and ensures that the flue gas meets emission standards through testing agencies, reducing environmental pollution.
Smart Images
Figure CN222998517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification system. Background Art
[0002] In the production of thermal power generation and metal smelting, flue gas is often generated by burning coal and other fuels. These flue gases contain SO2 and NO X These harmful gases are easily emitted into the atmosphere, forming haze and acid rain, which seriously harms the air quality and ecological environment and is the main source of air pollution. Nowadays, power plants and other enterprises often collect the flue gas generated by setting up flue gas purification devices, and then discharge it into the atmosphere after treatment and filtration.
[0003] During the process of flue gas treatment and filtration, dust particles in the flue gas accumulate on the filter for a long time, which will cause the filter to be blocked, affecting the filtering effect, resulting in the need to frequently replace the filter, increasing the cleaning cost. In addition, when the flue gas is discharged, different harmful substances will be produced according to the actual situation in the flue. Therefore, the composition and content of harmful substances in the flue gas are varied. When one or several components in the flue gas are discharged without meeting the emission standards, it will still cause environmental pollution. Utility Model Content
[0004] In view of one or more deficiencies in the above-mentioned prior art, the utility model provides a flue gas purification system, which can vibrate and knock off dust particles adhering to the filter, avoid clogging of the filter, reduce the frequency of replacing the filter, and reduce maintenance costs.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A flue gas purification system comprises a base, a box body is provided on one side of the top of the base, an air intake pipe is installed on one side of the box body, a purification tank is provided inside the box body, a plurality of spray heads are provided in the purification tank; a plurality of first filter screens are installed in the purification tank, and a vibration mechanism is installed on the top of the purification tank for driving the first filter screens to vibrate.
[0007] As a further implementation method, the vibration mechanism includes a center rod and several cams, the center rod is rotatably installed at the top of the purification tank, and the several cams are rotatably installed at the top of the purification tank near each of the first filters, and the center rod and the several cams are connected by several bevel gear mechanisms.
[0008] As a further implementation, the bevel gear mechanism includes a meshingly connected driving bevel gear and a driven bevel gear, the driving bevel gear is mounted on the center rod and coaxially arranged with the center rod, and the driven bevel gear is coaxially connected to the cam.
[0009] As a further implementation, a motor is provided on one side of the box body, and the output end of the motor is drivingly connected to the central rod through a coupling.
[0010] As a further implementation, a detection mechanism is installed on the side of the box body away from the intake pipe. The detection mechanism includes a main exhaust pipe communicated with the purification tank, and a flue gas composition detector is arranged in the main exhaust pipe for detecting whether the flue gas discharged from the purification tank meets the emission standards.
[0011] As a further implementation, a secondary exhaust pipe is connected to one side of the main exhaust pipe, and the other end of the secondary exhaust pipe is communicated with the purification tank; the outlet end of the main exhaust pipe is connected to an exhaust chimney, and the exhaust chimney is installed at the top end of the base.
[0012] As a further implementation, a dome valve is arranged at the connection between the inside of the main exhaust pipe and the secondary exhaust pipe, and the on-off of the main exhaust pipe and the secondary exhaust pipe can be switched rotatably.
[0013] As a further implementation, the flue gas composition detector is electrically connected to the dome valve.
[0014] As a further implementation, a water pump is arranged on one side of the box body. The water pump is connected with a plurality of water pipes, and the water pipes extend into the purification tank. A plurality of the spray heads are installed on one side of each water pipe located in the purification tank.
[0015] As a further implementation, a collection water tank is installed at the bottom of the box body. A discharge port is arranged at the bottom end of the purification tank, and the collection water tank is communicated with the discharge port; a second filter screen is arranged in the collection water tank for filtering the soot entering the collection water tank, and the filtered spray liquid can be recycled.
[0016] Adopting the above technical solutions, the beneficial effects of the present utility model are as follows:
[0017] 1. In the present utility model, the vibration mechanism in the purification tank drives the first filter screen to vibrate, shakes off the dust particles adhering to the first filter screen, and adsorbs the particles in the soot by spraying. During the process of realizing flue gas purification, the blockage of the filter screen is avoided, the replacement frequency of the filter screen can be reduced, and the maintenance cost is lowered.
[0018] 2. In the present utility model, the detection mechanism detects the purified flue gas. Through the combined use of the box body and the detection mechanism, the harmful components in the flue gas after purification are detected, and direct emission or secondary purification is selected according to the detection results, thereby improving the purification effect of the flue gas purification system and effectively reducing environmental pollution.
[0019] 3. In the present utility model, through the cooperation of the discharge port, the collection water tank and the second filter screen, the soot falling from the water purification tank is filtered and the filtered spray liquid is collected, so that the spray liquid can be recycled, which is environmentally friendly and economical.
[0020] 4. The vibration mechanism of the present utility model is in transmission cooperation through the central rod, the cam and the bevel gear, driving the first filter screen to vibrate, so that the dust particles adhered to the first filter screen are vibrated and knocked down, avoiding the blockage of the filter screen, further improving the flue gas purification efficiency, and reducing the overhaul and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The attached drawings forming a part of this utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.
[0022] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0023] Figure 2 is a front cross-sectional view schematic diagram of an embodiment of the present utility model;
[0024] Figure 3 is a schematic structural diagram of the vibration mechanism of an embodiment of the present utility model;
[0025] Figure 4 is a side cross-sectional view schematic diagram of an embodiment of the present utility model;
[0026] Figure 5 is a top cross-sectional view schematic diagram of an embodiment of the present utility model.
[0027] In the figure: 1, base; 2, box body; 3, intake pipe; 4, purification tank; 5, first filter screen; 6, discharge port; 7, collection water tank; 8, second filter screen; 9, water pump; 10, water pipe; 11, spray head; 12, exhaust chimney; 13, central rod; 14, cam; 15, driving bevel gear; 16, driven bevel gear; 17, motor; 18, main exhaust pipe; 19, flue gas component detector; 20, auxiliary exhaust pipe; 21, dome valve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.
[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0030] Embodiment 1
[0031] In a typical embodiment of the present application, a flue gas purification system is provided, such as Figures 1-5 As shown, it includes a base 1, a box 2 is installed on one side of the top of the base 1, an air intake pipe 3 is installed on one side of the box 2, a purification tank 4 is arranged inside the box, and a plurality of first filter screens 5 are installed in the purification tank. Among them, the plurality of first filter screens 5 are arranged in parallel in the direction of the flue gas passing through the purification tank to remove dust and purify the flue gas entering from the air intake pipe. A vibration mechanism is installed on the top of the purification tank 4 to drive the first filter screen 5 to vibrate to prevent the filtered smoke from clogging the first filter screen.
[0032] In this embodiment, the vibration mechanism includes a center rod 13 and a plurality of cams 14. The center rod 13 is rotatably mounted on the top of the purification tank 4. The plurality of cams 14 are rotatably mounted at the top of the purification tank near each first filter. The center rod and the plurality of cams are connected by a plurality of bevel gear mechanisms. The bevel gear mechanism includes a meshing driving bevel gear 15 and a driven bevel gear 16. The driving bevel gear 15 is on the center rod and is coaxially arranged with the center rod 13. The driven bevel gear 16 is coaxially connected with the cam 14.
[0033] Specifically, Figure 2 As shown, the vibration mechanism includes a center rod 13 and a plurality of cams 14. The center rod 13 is rotatably mounted at the top of the purification tank. A driving bevel gear 15 is mounted on the center rod 13 near each first filter screen. The driving bevel gear 15 is mounted around the circumference of the center rod. The plurality of cams 14 are rotatably mounted at the top of the purification tank near each first filter screen 5 through a bracket. A driven bevel gear 16 is mounted on the cam 4, and the driven bevel gear 16 is meshed with the driving bevel gear 15. Since the driving bevel gear 15 is meshed with the driven bevel gear 16, when the center rod 13 rotates, the cam 14 rotates together with it. One side of the cam protrusion can continuously contact the first filter screen 5, driving the first filter screen to vibrate, thereby vibrating and knocking off the dust particles adhered to the surface of the first filter screen.
[0034] Among them, Figure 2 ,3 As shown, for easy installation, the cam 14 is located below the center rod 13, and the driven bevel gear 16 is installed on the top of the cam. The driven bevel gear is coaxially connected to the cam and meshed with the driving bevel gear. The driving bevel gear 15 rotates to drive the driven bevel gear 16 to rotate, thereby driving the cam 14 to rotate.
[0035] Among them, Figure 2 , 3 As shown, a motor 17 is installed on one side of the box body 2, and the output end of the motor is connected to the center rod 13 through a coupling. The motor 17 drives the center rod 13 to rotate, and then drives the cam 14 to rotate, so that the first filter screen 5 vibrates.
[0036] In this embodiment, a water pump 9 is provided on one side of the box body 2, and the water pump is connected to a plurality of water pipes 10, which extend into the purification tank, and a plurality of spray heads 11 are installed on one side of each water pipe 10 located in the purification tank. A collecting water tank 7 is installed at the bottom of the box body, and a discharge port 6 is provided at the bottom end of the purification tank, and the collecting water tank is connected to the discharge port; a second filter screen 8 is provided in the collecting water tank, which is used to filter the smoke and dust entering the collecting water tank, and the filtered spray liquid can be recycled.
[0037] Specifically, Figure 4 As shown, a discharge port 6 is provided at the bottom of the purification tank in the box body 2, and a collecting water tank 7 is installed at the bottom end of the box body. The top of the collecting water tank 7 is connected to the discharge port 6, and the spray liquid and smoke dust in the purification tank can fall into the collecting water tank through the discharge port. In this embodiment, the discharge port is designed as a conical opening for easy collection. A second filter screen 8 is installed in the collecting water tank 7. The second filter screen 8 covers the opening surface of the collecting water tank and can filter the smoke dust particles entering the collecting water tank 7, so that the collected spray liquid can be recycled. A water pump 9 is installed on one side of the collecting water tank 7, and a plurality of water pipes 10 are installed on the top of the water pump 9. The water pipes 10 extend into the purification tank 4, and a plurality of spray heads 11 are installed on one side of each water pipe 10 located in the purification tank, which are used to spray the smoke in the purification tank, adsorb the dust particles in the smoke, and realize the dust removal and purification of the smoke.
[0038] In this embodiment, a detection mechanism is installed on the side of the box 2 away from the air intake pipe, which is used to detect harmful components of the flue gas discharged from the purification tank, and select direct discharge or secondary purification according to the detection results, which can improve the flue gas purification effect of the power plant and reduce environmental pollution. The detection mechanism includes a main exhaust pipe 18 connected to the purification tank 4, and a flue gas component detector is provided in the main exhaust pipe 18 to detect whether the purified flue gas meets the emission standards.
[0039] Specifically, Figure 1 , 5As shown in the figure, the detection mechanism includes a main exhaust pipe 18, which is installed at the bottom of the side of the box body 2 away from the intake pipe. A flue gas composition detector 19 is installed inside the main exhaust pipe. One side of the main exhaust pipe is connected with a secondary exhaust pipe 20. One end of the secondary exhaust pipe is communicated with the main exhaust pipe, and the other end is installed on the side of the box body where the intake pipe is provided and is communicated with the purification tank 4, so that the flue gas that does not meet the emission standard is introduced into the purification tank for secondary purification. A dome valve 21 is arranged at the position inside the main exhaust pipe 18 where it is communicated with the secondary exhaust pipe. By rotating the dome valve, the on-off of the main exhaust pipe and the secondary exhaust pipe can be switched, and one of the main exhaust pipe or the secondary exhaust pipe can be blocked.
[0040] Among them, the flue gas composition detector 19 is electrically connected to the dome valve 21. When the flue gas composition detector 19 detects that the flue gas does not meet the emission standard, the valve body of the dome valve 21 blocks the main exhaust pipe 18. At this time, the flue gas re-enters the purification tank 4 through the secondary exhaust pipe 20 for secondary purification; when it is detected that the flue gas meets the emission standard, the valve body of the dome valve blocks the secondary exhaust pipe 20, and at this time the flue gas can be directly discharged.
[0041] Among them, the outlet end of the main exhaust pipe 18 is connected to the exhaust chimney 12, and the exhaust chimney 12 is installed on the top of the base 1 on the side close to the main exhaust pipe, which is convenient for discharging the flue gas.
[0042] The working principle of this embodiment:
[0043] When the flue gas purification system of this embodiment is in use, the flue gas enters the purification tank 4 through the intake pipe 3. The dust particles in the flue gas are adhered to the surface of the first filter screen 5. At this time, the water pump 9 and the motor 17 are turned on. The water pump 9 extracts the spraying liquid in the collection water tank 7 into the water pipe 10 and sprays it out from the spray head 11 to adsorb the dust particles in the flue gas; at the same time, the motor 17 drives the central rod 13 to rotate. Through the meshing transmission of the driving bevel gear 15 and the driven bevel gear 16, the cam 14 is driven to rotate together, so that the convex side of the cam 14 can continuously contact the first filter screen 5, driving the first filter screen to vibrate, thereby vibrating and knocking down the dust particles adhered to the surface of the first filter screen 5. The soot adsorbed in the spraying liquid and the soot knocked down from the surface of the first filter screen both fall into the collection water tank 7 through the discharge port 6 and are filtered on the surface of the second filter screen 8. The filtered spraying liquid returns to the collection water tank 7 for recycling. The purified flue gas enters the main exhaust pipe 18, and the flue gas composition detector 19 detects the flue gas. When the detected flue gas does not meet the emission standard, the valve body of the dome valve 21 blocks the main exhaust pipe 18. At this time, the flue gas re-enters the purification tank 4 through the secondary exhaust pipe 20 for secondary purification; when the detected flue gas meets the emission standard, the valve body of the dome valve 21 blocks the secondary exhaust pipe 20, and at this time the flue gas can be directly discharged.
[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it. Those of ordinary skill in the art should understand that the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A flue gas purification system, characterized in that: It comprises a base, a box body is provided on one side of the top of the base, an air inlet pipe is installed on one side of the box body, a purification tank is provided inside the box body, and a plurality of spray heads are provided in the purification tank; a plurality of first filter screens are installed in the purification tank, and a vibration mechanism is installed on the top of the purification tank for driving the first filter screen to vibrate; A detection mechanism is installed on the side of the box body away from the air intake pipe, and the detection mechanism includes a main exhaust pipe connected to the purification tank, and a smoke component detector is arranged in the main exhaust pipe; one side of the main exhaust pipe is connected to an auxiliary exhaust pipe, and the other end of the auxiliary exhaust pipe is connected to the purification tank; the outlet end of the main exhaust pipe is connected to the exhaust chimney, and the exhaust chimney is installed on the top of the base; a dome valve is arranged at the connection between the main exhaust pipe and the auxiliary exhaust pipe, which can be rotated to switch the main exhaust pipe and the auxiliary exhaust pipe.
2. A flue gas purification system according to claim 1, characterized in that: The vibration mechanism includes a center rod and a plurality of cams. The center rod is rotatably mounted on the top of the purification tank. The plurality of cams are rotatably mounted on the top of the purification tank near each of the first filters. The center rod and the plurality of cams are transmission-connected via a plurality of bevel gear mechanisms.
3. A flue gas purification system according to claim 2, characterized in that: The bevel gear mechanism comprises a driving bevel gear and a driven bevel gear that are meshed and connected. The driving bevel gear is mounted on the center rod and is coaxially arranged with the center rod. The driven bevel gear is coaxially connected with the cam.
4. A flue gas purification system according to claim 2, characterized in that: A motor is provided on one side of the box body, and the output end of the motor is transmission-connected to the center rod through a coupling.
5. A flue gas purification system according to claim 1, characterized in that: The smoke component detector is electrically connected to the dome valve.
6. A flue gas purification system according to claim 1, characterized in that: A water pump is arranged on one side of the box body, and the water pump is connected to a plurality of water pipes, and the water pipes extend into the purification tank. A plurality of the spray heads are installed on one side of each water pipe located in the purification tank.
7. A flue gas purification system according to claim 6, characterized in that: A collecting water tank is installed at the bottom of the box body, a discharge port is arranged at the bottom end of the purification tank, and the collecting water tank is communicated with the discharge port; a second filter screen is arranged in the collecting water tank.