A kind of external hanging furnace for treating semi-solid hazardous waste

Abstract

The utility model discloses a kind of external hanging furnaces for disposal semi-solid hazardous waste, it is related to semi-solid hazardous waste treatment equipment technical field, including external hanging furnace main body, the top of one end of external hanging furnace main body is equipped with flue gas hole, the upper side of flue gas hole is fixedly provided with flue gas pipe, the outer wall of flue gas pipe is wound with heat exchange pipe, the both ends of heat exchange pipe are fixedly connected with cold water inlet pipe and hot water outlet pipe, the inner wall of flue gas pipe is rotatably provided with rotating ring, the upper side of rotating ring is fixedly provided with scraper, the inner wall of flue gas pipe is in contact with scraper, the lower end of flue gas pipe rotatably sleeve-connected with transmission rod, the inner side one end of transmission rod is provided with the first transmission mechanism of driving rotating ring rotation.The utility model can carry out waste heat recovery to high-temperature exhaust gas generated when external hanging furnace works, and can clean the inner wall of flue gas pipe in real time, guarantee the good heat exchange performance of flue gas pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of semi-solid hazardous waste treatment equipment, specifically to an external furnace for treating semi-solid hazardous waste. Background Technology

[0002] With industrial development, the amount of semi-solid hazardous waste generated is increasing daily. External boilers, as a commonly used equipment for disposing of semi-solid hazardous waste, produce large amounts of high-temperature exhaust gas during operation. Direct discharge of this exhaust gas not only wastes energy but may also have adverse environmental impacts. Furthermore, over long-term use, dust and other impurities gradually accumulate on the inner walls of the exhaust pipes, reducing their heat exchange performance and affecting the overall efficiency of the external boiler. Utility Model Content

[0003] In view of the problems existing in the current external furnaces for disposing of semi-solid hazardous waste, this utility model is proposed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An external furnace for disposing of semi-solid hazardous waste includes an external furnace body. A flue gas vent is located at the top of one end of the external furnace body. A flue gas pipe is fixedly installed on the upper side of the flue gas vent. A heat exchange tube is wound around the outer wall of the flue gas pipe. A cold water inlet pipe and a hot water outlet pipe are fixedly connected to both ends of the heat exchange tube, respectively. A rotating ring is rotatably installed on the inner wall of the flue gas pipe. A scraper is fixedly installed on the upper side of the rotating ring, and the scraper abuts against the inner wall of the flue gas pipe. A transmission rod is rotatably sleeved at the lower end of the flue gas pipe. A first transmission mechanism that drives the rotating ring to rotate is installed at one end of the inner side of the transmission rod. A second transmission mechanism that drives the transmission rod to rotate is installed inside the heat exchange tube located at the upper end of the transmission rod.

[0005] Preferably, the first transmission mechanism includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly disposed on the lower side of the rotating ring, and the second bevel gear is fixedly sleeved on the end of the transmission rod near the first bevel gear. The first bevel gear and the second bevel gear are meshed and connected.

[0006] Preferably, the second transmission mechanism includes a first spur gear and a second spur gear. A crossbar is rotatably sleeved inside the end of the heat exchange tube near the transmission rod. An impeller is fixedly sleeved at the end of the crossbar inside the heat exchange tube. The first spur gear is fixedly sleeved at the end of the transmission rod away from the second bevel gear. The second spur gear is fixedly sleeved at the outer end of the crossbar. The first spur gear and the second spur gear are meshed and connected.

[0007] Preferably, a flue gas filter assembly is detachably installed at the top of the exhaust pipe.

[0008] Preferably, the middle end of the transmission rod is rotatably sleeved with the inner wall of the exhaust pipe via a first sealed bearing.

[0009] Preferably, both ends of the crossbar are rotatably connected to the inner wall of the corresponding heat exchange tube via a second sealed bearing.

[0010] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model heats the cold water in the heat exchange tube by introducing cold water into the heat exchange tube and then conducting heat through the flue pipe. The heated hot water is then discharged from the hot water outlet pipe, thus realizing the recovery of waste heat from high-temperature exhaust gas.

[0011] 2. In this utility model, during the water inlet process of the heat exchange tube, the water flow drives the impeller to rotate, the impeller drives the crossbar to rotate, which in turn causes the first spur gear to drive the second spur gear to rotate, which in turn causes the transmission rod to rotate. The transmission rod drives the rotating ring to rotate via the first bevel gear and the second bevel gear. The rotating ring drives the scraper to rotate, which can scrape and clean the inner wall of the flue pipe, effectively preventing scale buildup on the inner wall of the flue pipe and maintaining good heat exchange performance of the flue pipe. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the structure of an external furnace for disposing of semi-solid hazardous waste proposed in this utility model; Figure 2 for Figure 1 Internal structure diagram; Figure 3 for Figure 2 Internal structure diagram; Figure 4 for Figure 3 A magnified schematic diagram of part A in the middle section.

[0014] Explanation of reference numerals in the attached figures: 1. External boiler body; 2. Exhaust pipe; 3. Flue gas filter assembly; 4. Heat exchange tube; 5. Cold water inlet pipe; 6. Hot water outlet pipe; 7. Scraper; 8. Rotating ring; 9. First bevel gear; 10. Transmission rod; 11. Second bevel gear; 12. Crossbar; 13. Impeller; 14. Second spur gear; 15. First spur gear. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model discloses an external furnace for disposing of semi-solid hazardous waste.

[0017] Reference Figure 1-4 An external furnace for disposing of semi-solid hazardous waste includes an external furnace body 1. A flue gas vent is located at the top of one end of the external furnace body 1. A flue gas pipe 2 is fixedly installed on the upper side of the flue gas vent. A flue gas filter assembly 3 is detachably installed at the top of the flue gas pipe 2, which can filter the exhaust gas before discharge. A heat exchange tube 4 is wound around the outer wall of the flue gas pipe 2. Cold water inlet pipe 5 and hot water outlet pipe 6 are fixedly connected to both ends of the heat exchange tube 4, respectively. A rotating ring 8 is rotatably installed on the inner wall of the flue gas pipe 2. A scraper 7 is fixedly installed on the upper side of the rotating ring 8, and the scraper 7 abuts against the inner wall of the flue gas pipe 2. A transmission rod 10 is rotatably sleeved at the lower end of the flue gas pipe 2. A first transmission mechanism that drives the rotating ring 8 to rotate is provided at one end of the inner side of the transmission rod 10. A second transmission mechanism that drives the transmission rod 10 to rotate is provided inside the heat exchange tube 4 located at the upper end of the transmission rod 10.

[0018] Reference Figure 1-4 The first transmission mechanism includes a first bevel gear 9 and a second bevel gear 11. The first bevel gear 9 is fixedly disposed on the lower side of the rotating ring 8, and the second bevel gear 11 is fixedly sleeved on the end of the transmission rod 10 near the first bevel gear 9. The first bevel gear 9 and the second bevel gear 11 are meshed and connected. The middle end of the transmission rod 10 is rotatably sleeved with the inner wall of the exhaust pipe 2 through the first sealing bearing, thereby improving the sealing between the transmission rod 10 and the inner wall of the exhaust pipe 2.

[0019] Reference Figure 1-4 The second transmission mechanism includes a first spur gear 15 and a second spur gear 14. A crossbar 12 is rotatably sleeved inside the end of the heat exchange tube 4 near the transmission rod 10. An impeller 13 is fixedly sleeved at the end of the crossbar 12 inside the heat exchange tube 4. The first spur gear 15 is fixedly sleeved at the end of the transmission rod 10 away from the second bevel gear 11. The second spur gear 14 is fixedly sleeved at the outer end of the crossbar 12. The first spur gear 15 and the second spur gear 14 are meshed and connected. Both ends of the crossbar 12 are rotatably sleeved with the inner wall of the corresponding heat exchange tube 4 through the second sealing bearing, thereby improving the sealing between the two ends of the crossbar 12 and the inner wall of the heat exchange tube 4.

[0020] In this utility model, during use, the high-temperature waste gas generated during the disposal of semi-solid hazardous waste by the external furnace body 1 is discharged through the flue pipe 2. At the same time, cold water enters the heat exchange pipe 4 from the cold water inlet pipe 5. The heat exchange pipe 4, which is wrapped around the outer wall of the flue pipe 2, absorbs the heat of the high-temperature waste gas through heat conduction. After being heated, the cold water flows out from the hot water outlet pipe 6, realizing the recovery and reuse of waste heat. During the flow of cold water, the water flow impacts the impeller 13 inside the heat exchange tube 4, causing the impeller 13 and the crossbar 12 to rotate. The crossbar 12 drives the transmission rod 10 to rotate through the meshing of the second spur gear 14 and the first spur gear 15. The transmission rod 10 drives the rotating ring 8 to rotate on the inner wall of the flue pipe 2 through the meshing of the second bevel gear 11 and the first bevel gear 9. The scraper 7 on the rotating ring 8 rotates synchronously with it to scrape off the dust and impurities attached to the inner wall of the flue pipe 2 in real time, preventing the accumulation of impurities from affecting the heat exchange efficiency. The first and second sealing bearings respectively ensure the seal between the transmission rod 10 and the flue pipe 2, and between the cross rod 12 and the heat exchange tube 4, preventing leakage of flue gas or cold water. The flue gas filter assembly 3 further filters the purified exhaust gas, reducing pollutant emissions. When it is necessary to clean or replace the flue gas filter assembly 3, it can be directly removed from the top of the flue pipe 2, which is convenient to operate. The entire device realizes waste heat recovery while automatically cleaning the inner wall of the flue pipe through the water flow driven scraper structure, ensuring long-term stable heat exchange performance and improving the energy utilization rate and working efficiency of the external boiler.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An external furnace for disposing of semi-solid hazardous waste, comprising an external furnace body (1), characterized in that, The main body (1) of the external boiler has a flue gas hole at one end. A flue gas pipe (2) is fixedly installed on the upper side of the flue gas hole. A heat exchange pipe (4) is wound around the outer wall of the flue gas pipe (2). A cold water inlet pipe (5) and a hot water outlet pipe (6) are fixedly connected to both ends of the heat exchange pipe (4). A rotating ring (8) is rotatably installed on the inner wall of the flue gas pipe (2). A scraper (7) is fixedly installed on the upper side of the rotating ring (8). The scraper (7) abuts against the inner wall of the flue gas pipe (2). A transmission rod (10) is rotatably sleeved at the lower end of the flue gas pipe (2). A first transmission mechanism that drives the rotating ring (8) to rotate is provided on one end of the inner side of the transmission rod (10). A second transmission mechanism that drives the transmission rod (10) to rotate is provided inside the heat exchange pipe (4) located at the upper end of the transmission rod (10).

2. The external furnace for disposing of semi-solid hazardous waste according to claim 1, characterized in that, The first transmission mechanism includes a first bevel gear (9) and a second bevel gear (11). The first bevel gear (9) is fixedly disposed on the lower side of the rotating ring (8), and the second bevel gear (11) is fixedly sleeved on the end of the transmission rod (10) near the first bevel gear (9). The first bevel gear (9) and the second bevel gear (11) are meshed and connected.

3. The external furnace for disposing of semi-solid hazardous waste according to claim 1, characterized in that, The second transmission mechanism includes a first spur gear (15) and a second spur gear (14). A crossbar (12) is rotatably sleeved inside the end of the heat exchange tube (4) near the transmission rod (10). An impeller (13) is fixedly sleeved at the end of the crossbar (12) inside the heat exchange tube (4). The first spur gear (15) is fixedly sleeved at the end of the transmission rod (10) away from the second bevel gear (11). The second spur gear (14) is fixedly sleeved at the outer end of the crossbar (12). The first spur gear (15) and the second spur gear (14) are meshed and connected.

4. The external furnace for disposing of semi-solid hazardous waste according to claim 1, characterized in that, The exhaust pipe (2) is detachably fitted with a flue gas filter assembly (3).

5. The external furnace for disposing of semi-solid hazardous waste according to claim 2, characterized in that, The middle end of the transmission rod (10) is rotatably connected to the inner wall of the exhaust pipe (2) through the first sealed bearing.

6. The external furnace for disposing of semi-solid hazardous waste according to claim 3, characterized in that, Both ends of the crossbar (12) are rotatably connected to the inner wall of the corresponding heat exchange tube (4) through the second sealed bearing.

Images