A dangerous waste incinerator based on CFD numerical simulation

Abstract

The application relates to the field of incinerators, and discloses a dangerous waste incinerator based on CFD numerical simulation, which comprises a furnace body and two rotating rods, a chimney is communicated with the top of the furnace body, and a discharging rack is slidably installed on the inner wall of the furnace body; a stirring rack is fixedly installed at one end of the rotating rod; a shielding disc is connected at one end of the discharging rack; a support frame is welded at the bottom end of the shielding disc; a motor is fixedly connected to the top of the support frame; the output end of the motor is fixedly connected with one end of the rotating rod; and one end of the rotating rod is rotatably installed in the discharging rack. According to the application, the rotating rod is installed in the discharging rack, one end of the rotating rod is fixedly connected with the stirring rack, the surface of the discharging rack is connected with the shielding disc, the bottom end of the shielding disc is installed with the motor through the support frame, the stirring rack at one end of the rotating rod is controlled to rotate through the starting of the motor, and the stirring rack drives the waste in the discharging rack to overturn.

Description

Technical Field

[0001] This application relates to the field of incinerators, and in particular to a hazardous waste incinerator based on CFD numerical simulation. Background Technology

[0002] Hazardous waste incinerators are high-temperature thermal treatment devices specifically designed for processing hazardous waste. They decompose harmful substances through high-temperature oxidation at 800-1600℃, achieving the harmlessness, volume reduction, and resource recovery of waste. Their core structure typically includes a primary combustion chamber and a secondary combustion chamber, employing furnace types such as rotary kilns, fluidized bed furnaces, or slag furnaces. They are primarily used for medical waste, chemical waste liquids, and electronic waste. Through high-temperature incineration and multiple purification technologies, emissions are ensured to meet environmental standards, combining environmental friendliness with resource recovery value. The incineration process of hazardous waste incinerators is analyzed using CFD numerical simulation. CFD numerical simulation is a technology that uses computational fluid dynamics to numerically simulate and optimize the incineration process. Its core lies in solving the flow, heat transfer, and chemical reaction equations through numerical discretization algorithms, thereby achieving a refined analysis of the flow field, temperature field, and component field within the incinerator. When a conventional incinerator is in use, after the furnace body is started, a chimney is connected to the top of the furnace body. The smoke inside the furnace body is purified and discharged through the chimney. A feeding rack is slidably connected to the inner wall of the furnace body, through which materials are placed, facilitating the feeding of materials into the furnace body, and the waste is incinerated by the high-temperature flame inside the furnace body.

[0003] Regarding the aforementioned technologies, the inventors believe that conventional hazardous waste incinerators often require testing based on the combustion rate of the waste during CFD numerical simulation. However, conventional waste is often piled up, which can lead to slower combustion efficiency at the bottom of the waste during incineration, affecting the CFD simulation values ​​and causing deviations in the final simulation results.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the problem of insufficient waste incineration at the bottom of the incinerator during operation, this application provides a hazardous waste incinerator based on CFD numerical simulation.

[0006] This application provides a hazardous waste incinerator based on CFD numerical simulation, which adopts the following technical solution:

[0007] A hazardous waste incinerator based on CFD numerical simulation includes a furnace body and two rotating rods. The top of the furnace body is connected to a chimney, and a feeding rack is slidably installed on the inner wall of the furnace body. A stirring rack is fixedly installed at one end of each rotating rod, and a baffle plate is snapped onto one end of the feeding rack. A support frame is welded to the bottom of the baffle plate, and a motor is fixedly connected to the top of the support frame. The output end of the motor is fixedly connected to one end of the rotating rod. One end of the rotating rod is rotatably installed inside the feeding rack, and the center of the rotating rod is on the same straight line as the center of the stirring rack. The two rotating rods are symmetrically distributed about the stirring rack as an axis.

[0008] Preferably, one end of each of the two rotating rods is fixedly connected to a rotating shaft, and a synchronous belt is installed on the surface of the two rotating shafts for transmission, and the surface of the rotating shaft is rotatably connected to the inner wall of the shielding disc.

[0009] Preferably, a plurality of limiting blocks are fixedly installed on the surface of the rotating shaft, and a plurality of connecting grooves adapted to the limiting blocks are opened inside the synchronous belt, and the inner wall of the connecting groove is movably connected to the surface of the limiting block.

[0010] Preferably, a heat insulation cylinder is fixedly installed on the surface of the shielding plate, the inner wall of the heat insulation cylinder is fixedly connected to the surface of the motor, and the center of the heat insulation cylinder and the center of the motor are on the same straight line. The heat insulation cylinder is a polyurethane foam cylinder.

[0011] Preferably, the shielding plate has several fixing bolts inside, which are evenly distributed at the bottom of the shielding plate, and the surface of the fixing bolts is connected to the internal thread of the feeding rack.

[0012] Preferably, a limit block is fixedly installed at one end of the rotating rod, and a fixing frame is movably connected to the surface of the limit block. One end of the fixing frame is fixedly installed to one end of the rotating shaft, and two connecting bolts are fixedly connected inside the fixing frame. The surface of the connecting bolts is fixedly installed inside the limit block.

[0013] Preferably, a threaded ring is fixedly connected to the surface of the fixing frame, and a cover is threadedly installed on the surface of the threaded ring. The interior of the cover is rotatably connected to the surface of the rotating rod.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By installing a rotating rod inside a discharge rack, with a stirring rack fixedly connected to one end of the rotating rod, and a baffle plate snapped onto the surface of the discharge rack, a motor is mounted on the bottom of the baffle plate via a support frame. This allows the motor to control the rotation of the stirring rack at one end of the rotating rod, thereby causing the stirring rack to tumble the waste within the discharge rack. A rotating shaft is fixedly installed at one end of the rotating rod, and a synchronous belt is connected to the surfaces of the two rotating shafts. This allows the two stirring racks to rotate synchronously, reducing energy consumption. Several connecting grooves are provided inside the synchronous belt to increase the friction between the synchronous belt and the rotating shafts through the connecting grooves and the limiting blocks. Compared to existing technologies, this method effectively improves the waste incineration efficiency of the incinerator.

[0016] 2. A polyurethane foam insulation cylinder can also be installed on the surface of the shielding plate to prevent the motor from overheating due to heat generated on the surface of the feeding rack. Several fixing bolts are snapped into the inside of the shielding plate to facilitate disassembly of the feeding plate after removing the fixing bolts. A limit block is fixedly installed at one end of the rotating rod, and a fixing frame is snapped into the surface of the limit block. A connecting bolt is snapped into the inside of the fixing frame to facilitate disassembly of the rotating rod at one end of the limit block after removing the connecting bolt, thus facilitating later cleaning and replacement. A threaded ring is fixedly installed at one end of the fixing frame, and a shielding cover is threaded onto the surface of the threaded ring to shield the surface of the connecting bolt and prevent the connecting bolt from being corroded by waste; effectively improving the performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a hazardous waste incinerator based on CFD numerical simulation, according to an embodiment of the application.

[0018] Figure 2 This is a schematic diagram of the rotating rod structure in the embodiment of the application;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Furnace body; 2. Chimney; 3. Feeding rack; 4. Rotating rod; 5. Stirring rack; 6. Motor; 7. Support frame; 8. Baffle plate; 9. Rotating shaft; 10. Synchronous belt; 11. Connecting groove; 12. Heat insulation cylinder; 13. Fixing bolt; 14. Limiting block; 15. Fixing frame; 16. Connecting bolt; 17. Threaded ring; 18. Baffle cover. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a hazardous waste incinerator based on CFD numerical simulation, referring to... Figure 1 - Figure 2 The furnace includes a furnace body 1. When in use, after the furnace body 1 is started, a chimney 2 is connected to the top of the furnace body 1. The smoke inside the furnace body 1 is purified and discharged through the chimney 2. A feeding rack 3 is slidably connected to the inner wall of the furnace body 1. The feeding rack 3 is used to place materials, making it convenient to send the materials into the furnace body 1. The waste is incinerated by the high-temperature flame inside the furnace body 1. A rotating rod 4 is installed in the feeding rack 3. A stirring rack 5 is fixedly connected to one end of the rotating rod 4. A baffle plate 8 is snapped onto the surface of the feeding rack 3. A support frame 7 is welded to the bottom end of the baffle plate 8. A motor 6 is fixedly installed on the surface of the support frame 7. The output end of the motor 6 is fixedly connected to one end of the rotating rod 4. After the motor 6 is started, it controls the stirring rack 5 at one end of the rotating rod 4 to rotate, thereby driving the stirring rack 5 to turn over the waste in the feeding rack 3, preventing the waste at the bottom from being heated unevenly and affecting the incineration effect of the waste.

[0024] Reference Figure 2 One end of the rotating rod 4 is fixedly installed with a rotating shaft 9. The surfaces of the two rotating shafts 9 are connected by a synchronous belt 10. The synchronous belt 10 facilitates the synchronous rotation of the two rotating shafts 9, thereby enabling the two stirring racks 5 to rotate synchronously and reducing the consumption of kinetic energy. Several connecting grooves 11 are opened inside the synchronous belt 10. The inner wall of the connecting groove 11 is movably connected to the limiting block 14 on the surface of the rotating shaft 9. The connecting groove 11 and the limiting block 14 increase the friction between the synchronous belt 10 and the rotating shaft 9, preventing the synchronous belt 10 from slipping and causing the stirring rack 5 to fail to rotate.

[0025] Reference Figure 3 - Figure 4A polyurethane foam insulation cylinder 12 is installed on the surface of the shielding plate 8. The inner wall of the insulation cylinder 12 is movably connected to the surface of the motor 6. The insulation cylinder 12 separates the motor 6 from the feeding rack 3, preventing the motor 6 from overheating due to heat generated on the surface of the feeding rack 3. Several fixing bolts 13 are snapped into the inside of the shielding plate 8. The surface of the fixing bolts 13 is connected to the internal thread of the feeding rack 3. The fixing bolts 13 fix the feeding plate to the surface of the feeding rack 3, and the fixing bolts 13 can be removed to facilitate the disassembly of the feeding plate, making it more convenient for later maintenance. A limit block 14 is fixedly installed at one end of the rotating rod 4. The limit block 14... A fixing bracket 15 is snapped onto the surface. One end of the fixing bracket 15 is fixedly connected to one end of the rotating shaft 9. A connecting bolt 16 is snapped into the inside of the fixing bracket 15. The surface of the connecting bolt 16 is fixedly installed inside the rotating rod 4. The connecting bolt 16 facilitates the connection between the limiting block 14 and the fixing bracket 15. After the connecting bolt 16 is removed, it is convenient to disassemble the rotating rod 4 at one end of the limiting block 14, which facilitates later cleaning and replacement. A threaded ring 17 is fixedly installed at one end of the fixing bracket 15. A cover 18 is threadedly connected to the surface of the threaded ring 17. The cover 18 covers the surface of the connecting bolt 16 to prevent the connecting bolt 16 from being corroded by waste.

[0026] The implementation principle of a hazardous waste incinerator based on CFD numerical simulation in this application embodiment is as follows: A rotating rod 4 is installed inside a feeding rack 3. A stirring rack 5 is fixedly connected to one end of the rotating rod 4. A baffle plate 8 is snapped onto the surface of the feeding rack 3. A support frame 7 is welded to the bottom end of the baffle plate 8. A motor 6 is fixedly installed on the surface of the support frame 7. The output end of the motor 6 is fixedly connected to one end of the rotating rod 4, so that the stirring rack 5 at one end of the rotating rod 4 can be rotated by starting the motor 6, thereby driving the stirring rack 5 to turn over the waste in the feeding rack 3, preventing uneven heating of the waste at the bottom. To improve the incineration efficiency of waste, a rotating shaft 9 is fixedly installed at one end of the rotating rod 4. The surfaces of the two rotating shafts 9 are connected by a synchronous belt 10 to facilitate the synchronous rotation of the two rotating shafts 9, thereby enabling the two mixing racks 5 to rotate synchronously and reducing energy consumption. Several connecting grooves 11 are provided inside the synchronous belt 10. The inner wall of the connecting groove 11 is movably connected to the limiting block 14 on the surface of the rotating shaft 9, so as to increase the friction between the synchronous belt 10 and the rotating shaft 9 by means of the connecting groove 11 and the limiting block 14, and prevent the synchronous belt 10 from slipping and causing the mixing rack 5 to fail to rotate.

[0027] A polyurethane foam insulation cylinder 12 can also be installed on the surface of the shielding plate 8. The inner wall of the insulation cylinder 12 is movably connected to the surface of the motor 6, so as to separate the motor 6 and the feeding rack 3 with the insulation cylinder 12, avoiding the problem of the motor 6 overheating due to the heat generated on the surface of the feeding rack 3. Several fixing bolts 13 are snapped into the inside of the shielding plate 8. The surface of the fixing bolts 13 is connected to the internal thread of the feeding rack 3, so as to fix the feeding plate to the surface of the feeding rack 3 with the fixing bolts 13. After the fixing bolts 13 are removed, the feeding plate can be easily disassembled, which is more convenient for later maintenance. A limit block 14 is fixedly installed at one end of the rotating rod 4. A fixing bracket 15 is snapped onto the surface of the rotating shaft 9. One end of the fixing bracket 15 is fixedly connected to one end of the rotating shaft 9. A connecting bolt 16 is snapped into the inside of the fixing bracket 15. The surface of the connecting bolt 16 is fixedly installed inside the rotating rod 4, so that the limiting block 14 can be easily connected to the fixing bracket 15 with the connecting bolt 16. After the connecting bolt 16 is removed, the rotating rod 4 at one end of the limiting block 14 can be easily disassembled, which facilitates later cleaning and replacement. A threaded ring 17 is fixedly installed at one end of the fixing bracket 15. A cover 18 is threadedly connected to the surface of the threaded ring 17, so that the surface of the connecting bolt 16 can be covered with the cover 18 to prevent the connecting bolt 16 from being corroded by waste.

[0028] 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 and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hazardous waste incinerator based on CFD numerical simulation, comprising a furnace body (1) and two rotating rods (4), characterized in that: The top of the furnace body (1) is connected to a chimney (2), and a feeding rack (3) is slidably installed on the inner wall of the furnace body (1). A stirring rack (5) is fixedly installed at one end of the rotating rod (4). A shielding plate (8) is snapped onto one end of the feeding rack (3). A support frame (7) is welded to the bottom end of the shielding plate (8). A motor (6) is fixedly connected to the top of the support frame (7). The output end of the motor (6) is fixedly connected to one end of the rotating rod (4).

2. The hazardous waste incinerator based on CFD numerical simulation according to claim 1, characterized in that: One end of the rotating rod (4) is rotatably installed inside the feeding rack (3), and the center of the rotating rod (4) is on the same straight line as the center of the mixing rack (5). The two rotating rods (4) are symmetrically distributed about the mixing rack (5).

3. A hazardous waste incinerator based on CFD numerical simulation according to claim 1, characterized in that: One end of each of the two rotating rods (4) is fixedly connected to a rotating shaft (9), and a synchronous belt (10) is installed on the surface of the two rotating shafts (9). The surface of the rotating shaft (9) is rotatably connected to the inner wall of the shielding disc (8).

4. A hazardous waste incinerator based on CFD numerical simulation according to claim 3, characterized in that: Several limiting blocks (14) are fixedly installed on the surface of the rotating shaft (9), and several connecting grooves (11) adapted to the limiting blocks (14) are opened inside the synchronous belt (10). The inner wall of the connecting groove (11) is movably connected to the surface of the limiting block (14).

5. A hazardous waste incinerator based on CFD numerical simulation according to claim 1, characterized in that: A heat insulation cylinder (12) is fixedly installed on the surface of the shielding plate (8). The inner wall of the heat insulation cylinder (12) is fixedly connected to the surface of the motor (6), and the center of the heat insulation cylinder (12) and the center of the motor (6) are on the same straight line. The heat insulation cylinder (12) is a polyurethane foam cylinder.

6. A hazardous waste incinerator based on CFD numerical simulation according to claim 1, characterized in that: The shielding plate (8) has several fixing bolts (13) inside. The fixing bolts (13) are evenly distributed at the bottom of the shielding plate (8), and the surface of the fixing bolts (13) is threaded to the inside of the feeding rack (3).

7. A hazardous waste incinerator based on CFD numerical simulation according to claim 1, characterized in that: A limiting block (14) is fixedly installed at one end of the rotating rod (4). A fixing frame (15) is movably connected to the surface of the limiting block (14). One end of the fixing frame (15) is fixedly installed to one end of the rotating shaft (9). Two connecting bolts (16) are fixedly connected inside the fixing frame (15). The surface of the connecting bolts (16) is fixedly installed inside the limiting block (14).

8. A hazardous waste incinerator based on CFD numerical simulation according to claim 7, characterized in that: A threaded ring (17) is fixedly connected to the surface of the fixed frame (15), and a cover (18) is threadedly installed on the surface of the threaded ring (17). The interior of the cover (18) is rotatably connected to the surface of the rotating rod (4).

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