Efficient smoke exhaust device of garbage incinerator
By designing an efficient smoke exhaust device, the problems of smoke pollution and condensate dripping were solved, achieving smoke filtration and rainproof functions, and improving the operating efficiency and lifespan of the equipment.
Patent Information
- Application Number
- CN202520309891.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Traditional waste incinerators emit serious pollution from flue gas, and the flue gas exhaust devices are prone to rusting, while condensate dripping affects the lifespan of the equipment.
A high-efficiency flue gas exhaust device for a waste incinerator was designed, comprising a filter flue and a rain cover. A valve system is used to ensure uninterrupted flue gas filtration and emission, while the rain cover and water collection funnel prevent condensate from entering the exhaust flue.
It improves flue gas filtration efficiency, extends equipment life, and ensures normal operation even in rainy weather.
Smart Images

Figure CN223795278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of high-efficiency filtration and rainproof devices, specifically a high-efficiency flue gas exhaust device for a waste incinerator. Background Technology
[0002] With the acceleration of global urbanization and the improvement of residents' living standards, the amount of waste generated is showing a continuous upward trend. In order to achieve the harmless, reduced, and resource-based treatment of waste, waste incineration technology has gradually become the mainstream.
[0003] However, traditional waste incinerators produce a large amount of high-temperature, highly polluting flue gas and solid particles during the incineration process, which has a certain impact on the environment and endangers human health. Moreover, the exhaust devices of traditional waste incinerators are subject to condensation dripping at the outlet, which causes the inside of the exhaust pipe to rust and shortens its service life. Utility Model Content
[0004] In order to solve the problems of unfiltered and polluted flue gas emitted from waste incinerators and the entry of rainwater and condensate from the top of the chimney, the purpose of this utility model is to provide a high-efficiency flue gas exhaust device for waste incinerators.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-efficiency flue gas exhaust device for a waste incinerator, comprising a waste incinerator body, wherein symmetrically distributed baffles are fixedly provided at the ends of the waste incinerator body, a flue gas inlet pipe is fixedly connected to the middle of the baffles, the top end of the flue gas inlet pipe is fixedly connected to the inner wall of the waste incinerator body near the baffles, a first flue gas pipe is fixedly connected to the bottom end of the flue gas inlet pipe away from the baffles, filter flue gas pipes are fixedly installed at both ends of the first flue gas pipe, a second flue gas pipe is fixedly connected to the top of the two filter flue gas pipes, a filter screen is movably installed inside the filter flue gas pipe, the outer surface of the filter screen is in contact with the inner wall of the filter flue gas pipe, a symmetrically distributed first valve is rotatably provided inside the second flue gas pipe near the filter flue gas pipe, a symmetrically distributed rotating shaft is fixedly connected to the ends of the two first valves, a symmetrically distributed second valve is rotatably provided inside the first flue gas pipe away from the first valve, and a second valve is fixedly connected to both ends of the rotating shaft.
[0006] Preferably, a symmetrically distributed first connecting rod is fixedly installed in the middle of the rotating shaft, and a rotating column is movably inserted into the top of the two first connecting rods on the side away from the rotating shaft. A rotating block is rotatably installed in the middle of the rotating column, and a second connecting rod is fixedly connected to the outer surface of the rotating block on the side away from the first connecting rod. A handrail is fixedly installed on the upper surface of the second connecting rod.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. By setting the first valve and the second valve with different initial angles, the first connecting rod pushes the handrail to shift synchronously, so that the flue gas can only pass through one channel at a time. This ensures that the exhaust process will not stop when the filter screen in the filter pipe needs to be cleaned or replaced, thereby improving work efficiency.
[0009] 2. Installing a rain cover and a water collection funnel above the exhaust pipe can effectively prevent rainwater from falling into the exhaust pipe. When the flue gas passes through the outer surface of the water collection funnel, condensation will form and drip along its conical outer surface into the drain pipe, thus expelling the flue gas and preventing it from dripping into the exhaust pipe. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0012] Figure 2 This is a cross-sectional structural diagram of the filter device of this utility model.
[0013] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0014] Figure 4 This is a cross-sectional structural diagram of the rainproof device of this utility model.
[0015] In the diagram: 1. Waste incinerator body; 11. Base frame; 12. Partition plate; 13. Handle; 14. Smoke inlet pipe; 2. Filter pipe; 21. Filter screen; 22. First smoke pipe; 23. Second smoke pipe; 24. Support column; 25. Bottom cover; 26. Insert rod; 27. Insert hole; 28. Support rod; 3. First valve; 31. Second valve; 32. Rotating shaft; 33. First connecting rod; 34. Rotating block; 35. Rotating column; 36. Second connecting rod; 37. Handrail; 4. Exhaust pipe; 41. Rain cover; 42. First fixing rod; 43. Water collection funnel; 44. Drain pipe; 45. Second fixing rod. Detailed Implementation
[0016] 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.
[0017] Example: Figure 1-4 As shown, this utility model provides a high-efficiency flue gas exhaust device for a waste incinerator, including a waste incinerator body 1. Symmetrically distributed baffles 12 are fixedly provided at the ends of the waste incinerator body 1. A flue gas inlet pipe 14 is fixedly connected to the middle of the baffles 12. The top end of the flue gas inlet pipe 14, near the baffles 12, is fixedly connected to the inner wall of the waste incinerator body 1. A first flue gas pipe 22 is fixedly connected to the bottom end of the flue gas inlet pipe 14, away from the baffles 12. Filter flue gas pipes 2 are fixedly installed at both ends of the first flue gas pipe 22. A second flue gas pipe 23 is fixedly connected to the top of the two filter flue gas pipes 2. A filter screen 21 is movably installed inside the filter flue gas pipe 2, and the outer surface of the filter screen 21 is in contact with the inner wall of the filter flue gas pipe 2. A symmetrically distributed first valve 3 is rotatably provided inside the second flue gas pipe 23, near the filter flue gas pipe 2. A symmetrically distributed rotating shaft 32 is fixedly connected to the ends of the two first valves 3. A symmetrically distributed second valve 31 is rotatably provided inside the first flue gas pipe 22, away from the first valve 3. The two ends of the rotating shaft 32 are fixedly connected to the second valve 31.
[0018] A symmetrically distributed first connecting rod 33 is fixedly installed in the middle of the rotating shaft 32. A rotating column 35 is movably inserted into the top of the two first connecting rods 33 on the side away from the rotating shaft 32. A rotating block 34 is rotatably installed in the middle of the rotating column 35. A second connecting rod 36 is fixedly connected to the outer surface of the rotating block 34 on the side away from the first connecting rod 33. A handrail 37 is fixedly installed on the upper surface of the second connecting rod 36. By moving the handrail 37, the second connecting rod 36 is moved forward, thereby causing the rotating block 34 to drive the rotating column 35 to move. Under the action of the rotating column 35, the first connecting rod 33... The rod 33 will deflect. Since the initial connection angle between the second connecting rod 36 and the first connecting rod 33 is set to a certain tilt state, the first valve 3 will be closed or opened. At the same time, the second valve 31 will also open or close accordingly. Furthermore, the damping design between the rotating column 35 and the first connecting rod 33 and the second connecting rod 36 ensures the stability and reliability of the first connecting rod 33, preventing it from rotating easily. This allows the smoke exhaust system to operate normally when the staff cleans the filter screen 21 or the inside of the filter pipe 2, improving work efficiency.
[0019] A flue pipe 4 is fixedly connected to the upper surface of the second flue pipe 23. A rain cover 41 is fixedly connected to the top of the flue pipe 4. A first fixing rod 42 is fixedly installed at the top of the rain cover 41. A water collection funnel 43 is fixedly connected to the bottom of the first fixing rod 42. A second fixing rod 45 is fixedly installed in the middle of the inner wall of the rain cover 41. A drain pipe 44 is fixedly installed at the bottom of the second fixing rod 45 away from the rain cover 41. When the flue gas enters the flue pipe 4 through the second flue pipe 23, it flows through the outer surface of the water collection funnel 43. The heat it carries forms condensate when it encounters the relatively cold outer surface of the water collection funnel 43. The condensate drips down the outer surface of the water collection funnel 43 into the drain pipe 44. At the same time, in rainy weather, the combined use of the rain cover 41 and the water collection funnel 43 can ensure the normal operation of the waste incinerator on rainy days.
[0020] The bottom end of the filter screen 21 is fixedly connected to symmetrically distributed support columns 24. The bottom end of the filter pipe 2 is movably installed with a bottom cover 25. The lower end of the support column 24 is movably inserted into the top end of the bottom cover 25. Symmetrically distributed insertion rods 26 are inserted through the outer surface of the bottom cover 25. An insertion hole 27 is opened at the junction of the outer surface of the filter pipe 2 and the bottom cover 25. The insertion rods 26 can be slidably inserted into the insertion hole 27. By pulling out the insertion rods 26, the bottom cover 25 will pull the filter screen 21 and support columns 24 out of the filter pipe 2 under the action of gravity. This makes it convenient for the staff to clean or replace the filter screen 21. At the same time, the inner wall of the filter pipe 2 can also be cleaned to ensure the cleanliness and efficient operation of the equipment.
[0021] A support rod 28 is fixedly installed on the outer surface of the filter pipe 2 near the bottom cover 25. The top of the support rod 28 is fixedly connected to the outer surface of the partition plate 12 on the side away from the filter pipe 2. The filter device is fixed on the partition plate 12 by the support rod 28, which provides stability for the operation of the equipment.
[0022] A base frame 11 is fixedly installed on the outer surface of the waste incinerator body 1. A handle 13 is fixedly installed on the top end of the waste incinerator body 1 away from the flue pipe 14. The handle 13 makes it more convenient and safer for the staff to operate the equipment. At the same time, the base frame 11 also increases the stability of the equipment.
[0023] Working principle: First, operate handle 13 to open the waste incinerator body 1, then introduce waste into the waste incinerator body 1. During the waste incineration process, the generated flue gas enters the first flue pipe 22 through the flue pipe 14. The first flue pipe 22 is equipped with two well-sealed valves, namely the first valve 3 and the second valve 31, which have different angles. When the first valve 3 is opened, the second valve 31 is closed, and the flue gas is guided to the filter flue pipe 2. The filter flue pipe 2 is equipped with a filter screen 21, which can effectively capture harmful impurities in the flue gas. After being purified by the filter screen 21, the flue gas continues to flow upward, enters the second flue pipe 23, and is finally guided to the exhaust pipe 4.
[0024] After prolonged filtration, the filter screen 21 needs to be cleaned or replaced. The operator can gently push the handle 37 to move the second connecting rod 36 forward. Then, the rotating blocks 34 at both ends of the second connecting rod 36 also begin to move, thereby driving the rotating column 35 to move, which in turn causes the first connecting rod 33 to deflect. The preset initial connection angle between the second connecting rod 36 and the first connecting rod 33 can realize the closing of the first valve 3 and the opening of the second valve 31. Furthermore, the damping design between the rotating column 35, the first connecting rod 33, and the second connecting rod 36 effectively ensures the stability of the first connecting rod 33, making it difficult for it to rotate. Thus, during the maintenance of the filter screen 21, the exhaust system can maintain continuous operation, greatly improving the overall working efficiency of the waste incinerator.
[0025] When replacing the filter screen 21, first pull out the insertion rod 26. Under the action of gravity, the bottom cover 25 will bring out the filter screen 21 and the support rod 28, making it easy to remove from the filter pipe 2. This greatly facilitates the cleaning and replacement of the filter screen 21 by the staff, and also makes it easier to clean the soot inside the filter pipe 2, keeping the equipment clean and running efficiently.
[0026] After the flue gas enters the exhaust pipe 4 upward through the second flue pipe 23, the heat in the flue gas causes it to condense on the outer surface of the cooler water collection funnel 43, forming condensate. The condensate drips along the conical outer surface of the water collection funnel 43 into the drain pipe 44, effectively preventing the condensate from dripping into the chimney. Similarly, in rainy weather, the rainwater is collected by the water collection funnel 43 due to the rain cover 41 and discharged through the drain pipe 44, ensuring that the waste incinerator can operate stably under rainy weather conditions.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A high-efficiency flue gas exhaust device for a waste incinerator, comprising a waste incinerator body (1), characterized in that: The waste incinerator body (1) is fixedly provided with symmetrically distributed baffles (12) at its end. A flue gas inlet pipe (14) is fixedly connected to the middle of the baffle (12). The top of the flue gas inlet pipe (14) is fixedly connected to the inner wall of the waste incinerator body (1) on the side near the baffle (12). A first flue gas pipe (22) is fixedly connected to the bottom of the flue gas inlet pipe (14) on the side away from the baffle (12). Filter flue gas pipes (2) are fixedly installed at both ends of the first flue gas pipe (22). A second flue gas pipe (23) is fixedly connected to the top of both filter flue gas pipes (2). A filter screen (21) is movably installed inside the filter pipe (2). The outer surface of the filter screen (21) is in contact with the inner wall of the filter pipe (2). A first valve (3) is rotatably arranged on the side of the second pipe (23) near the filter pipe (2). The ends of the two first valves (3) are fixedly connected to a symmetrically arranged rotating shaft (32). A second valve (31) is rotatably arranged on the side of the first pipe (22) away from the first valve (3). The two ends of the rotating shaft (32) are fixedly connected to the second valve (31).
2. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 1, characterized in that, The rotating shaft (32) is fixedly installed with symmetrically distributed first connecting rods (33) in the middle. The top ends of the two first connecting rods (33) are movably inserted with rotating columns (35) on the side away from the rotating shaft (32). A rotating block (34) is rotatably installed in the middle of the rotating column (35). A second connecting rod (36) is fixedly connected to the outer surface of the rotating block (34) on the side away from the first connecting rod (33). A handrail (37) is fixedly installed on the upper surface of the second connecting rod (36).
3. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 1, characterized in that, A smoke exhaust pipe (4) is fixedly connected to the upper surface of the second smoke pipe (23). A rain cover (41) is fixedly connected to the top of the smoke exhaust pipe (4). A first fixing rod (42) is fixedly installed at the top of the rain cover (41). A water collection funnel (43) is fixedly connected to the bottom of the first fixing rod (42). A second fixing rod (45) is fixedly installed in the middle of the inner wall of the rain cover (41). A drain pipe (44) is fixedly installed at the bottom of the second fixing rod (45) away from the rain cover (41).
4. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 1, characterized in that, The bottom end of the filter screen (21) is fixedly connected to symmetrically distributed support columns (24), and the bottom end of the filter pipe (2) is movably installed with a bottom cover (25). The lower end of the support column (24) is movably inserted into the top end of the bottom cover (25).
5. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 4, characterized in that, The outer surface of the bottom cover (25) is provided with symmetrically distributed insert rods (26), and the outer surface of the filter pipe (2) is provided with a socket (27) where it meets the bottom cover (25). The insert rods (26) can be slidably inserted into the socket (27).
6. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 4, characterized in that, A support rod (28) is fixedly installed on the outer surface of the filter pipe (2) near the bottom cover (25), and the top of the support rod (28) away from the filter pipe (2) is fixedly connected to the outer surface of the partition (12).
7. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 1, characterized in that, A base frame (11) is fixedly installed on the outer surface of the waste incinerator body (1).
8. The high-efficiency flue gas exhaust device for a waste incinerator as described in claim 1, characterized in that, A handle (13) is fixedly installed at the top end of the waste incinerator body (1) away from the flue pipe (14).