Horizontal incinerator with novel smoke return structure
By designing an external flue gas return mechanism in the horizontal incinerator, and adopting a U-shaped section and annular slider structure, the problem of flue gas pipe blockage was solved, and the ash removal convenience and combustion effect were improved.
Patent Information
- Application Number
- CN202422990542.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The internal return flue pipes of existing horizontal internal combustion incinerators are prone to accumulating dirt, leading to blockage and affecting combustion efficiency.
Design a horizontal incinerator with a novel flue gas return structure. The flue gas return mechanism is located on the outside of the furnace body and includes a main flue, a front flue, and a rear flue. It adopts a U-shaped section, annular slider, and U-shaped rod structure to facilitate ash removal. The ash and scale on the inner wall of the flue are removed by scraper.
It effectively prevents dust from entering the smoke box, keeps the return smoke pipe clean, ensures good combustion performance of the furnace, simplifies the ash cleaning process, and improves ease of use.
Smart Images

Figure CN223512117U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of incinerators, and in particular to a horizontal incinerator with a novel flue gas return structure. Background Technology
[0002] An incinerator is a device that uses the heat energy released by burning fuel or waste, or other forms of heat energy.
[0003] Existing horizontal internal combustion incinerators generally use internal return flue pipes to utilize waste gas. After prolonged use, dirt will adhere to the inner wall of the internal return flue pipes, causing blockage and affecting the overall combustion efficiency.
[0004] Therefore, there is an urgent need to improve the existing horizontal internal combustion incinerator. Utility Model Content
[0005] The purpose of this application is to provide a horizontal incinerator with a novel flue gas return structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides a horizontal incinerator with a novel flue gas return structure, employing the following technical solution:
[0007] A horizontal incinerator with a novel flue gas return structure includes a furnace body with a furnace chamber inside. A front smoke box and a rear smoke box are respectively provided at both ends of the furnace body and are connected to the furnace body. A burner is provided in the front smoke box, and an exhaust pipe is connected to the rear smoke box. A flue gas return mechanism is provided between the rear smoke box and the front smoke box. The flue gas return mechanism includes a main smoke pipe, a front smoke pipe, and a rear smoke pipe. The front smoke pipe is connected to the front smoke box, and the rear smoke pipe is connected to the rear smoke box. The two sides of the main smoke pipe near their ends are respectively connected to the front smoke pipe and the rear smoke pipe. A detachable sealing door is provided at both ends of the main smoke pipe, and a sealing gasket is connected between the sealing door and the main smoke pipe.
[0008] Several screw holes are provided on the end faces of both ends of the main flue, and the sealing door is fixed to the main flue by studs.
[0009] Preferably, both the front and rear smoke pipes include a vertical section and a U-shaped section that are connected to each other. The U-shaped section is connected to the main smoke pipe and the opening of the U-shaped section faces downward.
[0010] By adopting the above technical solution and setting a U-shaped section, the amount of dust falling into the front and rear smoke boxes during the dust removal process can be reduced.
[0011] The main smoke pipe, the front smoke pipe, and the rear smoke pipe are all provided with a heat insulation layer.
[0012] Preferably, guide rails are symmetrically arranged on both sides of the inner wall of the main flue, and an annular slider is matched inside the main flue. The annular slider can slide along the guide rails, and scrapers are arranged on both sides of the annular slider.
[0013] The bottom end of the main flue is provided with a guide sleeve and a U-shaped rod. One end of the U-shaped rod is movably sleeved in the guide sleeve. The annular slider has a connecting hole in the middle. The annular slider is fixed to the end of the U-shaped rod by a stud. The U-shaped rod can drive the annular slider to slide back and forth along the main flue.
[0014] By adopting the above technical solution, and by setting up an annular slider and a U-shaped rod, during ash cleaning, the annular slider is simply installed on the U-shaped rod and aligned with the guide rail on the main flue. The operator can then pull the U-shaped rod back and forth. As the annular slider slides inside the main flue, the ash and dirt adhering to the inner wall of the main flue can be scraped off by the scraper, making it quite convenient to use.
[0015] In summary, this application includes at least one of the following beneficial technical effects: the horizontal incinerator with a novel flue gas return structure sets the flue gas return mechanism on the outside of the furnace body. After a period of time, during ash removal, only the sealing doors at both ends of the main flue pipe need to be removed, making it convenient for manual cleaning of its inner wall. This keeps the inner wall of the flue gas return main pipe clean, thereby ensuring that the furnace body has a better combustion effect. Attached Figure Description
[0016] Figure 1 This is a frontal cross-sectional structural diagram of an embodiment of this application.
[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.
[0018] Figure 3 This is a schematic diagram illustrating the use of the smoke return mechanism in the ash removal state in the embodiments of this application.
[0019] Explanation of reference numerals in the attached drawings: 1. Furnace body; 11. Furnace chamber; 12. Front smoke box; 13. Rear smoke box; 14. Burner; 2. Smoke return mechanism; 21. Main smoke pipe; 211. Sealing door; 212. Sealing gasket; 22. Front smoke pipe; 23. Rear smoke pipe; 231. Vertical section; 232. U-shaped section; 3. Guide rail; 4. Annular slider; 41. Scraper; 5. Guide sleeve; 6. U-shaped rod. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0021] This application discloses a horizontal incinerator with a novel flue gas return structure, referring to... Figure 1-3The furnace includes a furnace body 1, which has a furnace chamber 11 inside. A front smoke box 12 and a rear smoke box 13 are respectively provided at both ends of the furnace body 1. The front smoke box 12 and the rear smoke box 13 are respectively connected to the furnace body 1. A burner 14 is provided in the front smoke box 12. The rear smoke box 13 is connected to an exhaust pipe. A smoke return mechanism 2 is provided between the rear smoke box 13 and the front smoke box 12. The smoke return mechanism 2 includes a main smoke pipe 21, a front smoke pipe 22 and a rear smoke pipe 23. The front smoke pipe 22 is connected to the front smoke box 12 and the rear smoke pipe 23 is connected to the rear smoke box 13. The two sides of the main smoke pipe 21 are connected to the front smoke pipe 22 and the rear smoke pipe 23 near their ends, respectively. A detachable sealing door 211 is provided at both ends of the main smoke pipe 21. A sealing gasket 212 is connected between the sealing door 211 and the main smoke pipe 21. An insulation layer is provided on the surface of the main smoke pipe 21, the front smoke pipe 22 and the rear smoke pipe 23.
[0022] Reference Figure 2 and Figure 3 To facilitate the disassembly and assembly of the sealing door 211, several screw holes are provided on the end faces of both ends of the main flue 21, and the sealing door 211 is fixed to the main flue 21 by studs.
[0023] Reference Figure 2 and Figure 3 To reduce dust falling into the front smoke box 12 and the rear smoke box 13 during the cleaning process, both the front smoke pipe 22 and the rear smoke pipe 23 include a vertical section 231 and a U-shaped section 232 that are connected. The U-shaped section 232 is connected to the main smoke pipe 21 and the opening of the U-shaped section 232 is set downward. The vertical section 231 has a connecting flange and is connected to the front and rear smoke boxes 13 by bolts. It can also be disassembled for cleaning (cleaning frequency is low).
[0024] Reference Figure 2 and Figure 3 The main flue 21 has guide rails 3 symmetrically arranged on both sides of its inner wall. The main flue 21 is equipped with an annular slider 4, which can slide along the guide rails 3. The annular slider 4 is equipped with scrapers 41 on both sides of the annular slider 4. The annular slider 4 is only put into the main flue 21 when cleaning ash, and is normally stored manually.
[0025] The bottom end of the main flue pipe 21 is provided with a guide sleeve 5 and a U-shaped rod 6. One end of the U-shaped rod 6 is movably sleeved in the guide sleeve 5. The annular slider 4 has a connecting hole in the middle. The annular slider 4 is fixed to the end of the U-shaped rod 6 by a stud. The U-shaped rod 6 can drive the annular slider 4 to slide back and forth along the main flue pipe 21 (when cleaning, the U-shaped rod 6 is suspended at the bottom end of the main flue pipe 21).
[0026] With the ring slider 4 and U-shaped rod 6 installed, during ash removal, simply install the ring slider 4 onto the U-shaped rod 6 and slide the ring slider 4 into the guide rail 3 on the main flue 21. The operator can pull the U-shaped rod 6 back and forth. When the ring slider 4 slides inside the main flue 21, the ash and dirt adhering to the inner wall of the main flue 21 can be scraped off by the scraper 41, making it quite convenient to use.
[0027] The implementation principle of a horizontal incinerator with a novel flue gas return structure according to an embodiment of this application is as follows:
[0028] By setting the flue gas return mechanism 2 on the outside of the furnace body 1, after a period of time, during ash removal, it is only necessary to remove the sealing doors 211 at both ends of the main flue pipe 21 to facilitate manual ash removal of its inner wall. With the setting of annular slider 4 and U-shaped rod 6, during ash removal, it is only necessary to install the annular slider 4 on the U-shaped rod 6 and slide the annular slider 4 into the guide rail 3 on the main flue pipe 21. The operator can pull the U-shaped rod 6 back and forth. When the annular slider 4 slides inside the main flue pipe 21, the ash and dirt adhering to the inner wall of the main flue pipe 21 can be scraped off by the scraper 41, which is quite convenient to use.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, principle and application direction of this application should be covered within the scope of protection of this application.
Claims
1. A horizontal incinerator with a novel flue gas return structure, comprising a furnace body (1), wherein a furnace chamber (11) is provided inside the furnace body (1), a front smoke box (12) and a rear smoke box (13) are respectively provided at both ends of the furnace body (1), the front smoke box (12) and the rear smoke box (13) are respectively connected to the furnace body (1), a burner (14) is provided in the front smoke box (12), and an exhaust pipe is connected to the rear smoke box (13), characterized in that: A smoke return mechanism (2) is provided between the rear smoke box (13) and the front smoke box (12). The smoke return mechanism (2) includes a main smoke pipe (21), a front smoke pipe (22) and a rear smoke pipe (23). The front smoke pipe (22) is connected to the front smoke box (12), and the rear smoke pipe (23) is connected to the rear smoke box (13). The two sides of the main smoke pipe (21) near the end are connected to the front smoke pipe (22) and the rear smoke pipe (23) respectively. Both ends of the main smoke pipe (21) are provided with detachable sealing doors (211), and a sealing gasket (212) is connected between the sealing door (211) and the main smoke pipe (21).
2. The horizontal incinerator with a novel flue gas return structure according to claim 1, characterized in that: Several screw holes are provided on the end faces of both ends of the main smoke pipe (21), and the sealing door (211) is fixed on the main smoke pipe (21) by studs.
3. The horizontal incinerator with a novel flue gas return structure according to claim 2, characterized in that: The front smoke pipe (22) and the rear smoke pipe (23) each include a vertical section (231) and a U-shaped section (232) that are connected to each other. The U-shaped section (232) is connected to the main smoke pipe (21) and the opening of the U-shaped section (232) is set downward.
4. The horizontal incinerator with a novel flue gas return structure according to claim 3, characterized in that: The surfaces of the main smoke pipe (21), the front smoke pipe (22) and the rear smoke pipe (23) are all provided with a heat insulation layer.
5. The horizontal incinerator with a novel flue gas return structure according to claim 1, characterized in that: The main smoke pipe (21) has guide rails (3) symmetrically arranged on both sides of its inner wall. The main smoke pipe (21) is equipped with an annular slider (4), which can slide along the guide rails (3). The annular slider (4) is equipped with scrapers (41) on both sides of the annular slider (4).
6. The horizontal incinerator with a novel flue gas return structure according to claim 5, characterized in that: The bottom end of the main smoke pipe (21) is provided with a guide sleeve (5) and a U-shaped rod (6). One end of the U-shaped rod (6) is movably sleeved in the guide sleeve (5). The annular slider (4) has a connecting hole in the middle. The annular slider (4) is fixed to the end of the U-shaped rod (6) by a stud. The U-shaped rod (6) can drive the annular slider (4) to slide back and forth along the main smoke pipe (21).