Hazardous waste incineration ash melting furnace using inert gas torch

Abstract

The utility model relates to the technical field of melting furnace discloses a kind of dangerous and useless incineration ash melting furnace of inert gas torch, including melting tank, ash storage tank and exhaust pipe, the lower end of melting tank is fixedly connected with ash storage tank, the middle part of the upper end of melting tank is connected with exhaust pipe through, the inside of melting tank is provided with rotating mechanism, the rotating mechanism includes driving gear and two stirring rods, rotating groove is arranged in the middle part of the front end in the inside of melting tank, the front end of the outer wall of stirring rod stem is fixedly connected with driven gear, the driven gear is all engaged with driving gear, the inside of stirring rod is all provided with cooling channel. In the utility model, the driving gear in rotating mechanism is engaged with the driven gear fixedly connected on stirring rod, so that two stirring rods can stir internal slag, and the rotating threaded rod in filtering mechanism drives the lower movement of limiting block to remove the clamping state of filter plate, facilitating the disassembly of filter plate.

Description

Technical Field

[0001] This utility model relates to the field of melting furnace technology, and in particular to a hazardous waste incineration ash melting furnace using an inert gas torch. Background Technology

[0002] The hazardous waste incineration ash melting furnace using an inert gas torch is a device specifically designed for the high-temperature harmless treatment of ash generated after the incineration of hazardous waste. Its core principle is to use high-temperature plasma or heat flow generated by an inert gas torch such as nitrogen or argon to heat the ash to a molten state. After cooling, the ash forms a stable glassy body, thereby permanently sealing in heavy metals and other harmful substances, preventing environmental pollution. It is suitable for hazardous waste incineration plants, medical waste treatment, electronic waste, industrial solid waste and other fields.

[0003] However, most of the existing hazardous waste incineration ash melting furnaces using inert gas torches on the market are not conducive to stirring the ash material accumulated inside the furnace, making it difficult to heat the inner layer of the ash material pile, resulting in uneven heating and reduced melting efficiency. In addition, most of the existing hazardous waste incineration ash melting furnaces using inert gas torches on the market are not conducive to the installation and disassembly of filter plates used to filter exhaust gas by workers, increasing the difficulty for workers to replace or clean the filter plates.

[0004] Therefore, those skilled in the art have provided a hazardous waste incineration ash melting furnace using an inert gas torch to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a hazardous waste incineration ash melting furnace using an inert gas torch. The active gear in the rotating mechanism meshes with the driven gear fixedly connected to the stirring rod, so that the two stirring rods can stir the slag inside. Meanwhile, the rotating threaded rod in the filtration mechanism drives the limiting block to move down and release the jamming state of the filter plate, which facilitates the disassembly and assembly of the filter plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A hazardous waste incineration ash melting furnace using an inert gas torch includes a melting box, an ash storage box, and a flue pipe. The lower end of the melting box is fixedly connected to the ash storage box, and the flue pipe is connected through the middle of the upper end of the melting box. A rotating mechanism is provided inside the melting box, which includes a driving gear and two stirring rods. A rotating groove is opened in the middle of the front end of the melting box. Driven gears are fixedly connected to the front end of the outer wall of the stirring rods, and the driven gears are meshed with the driving gear. Cooling channels are opened inside the stirring rods. A grid plate is fixedly connected to the lower end of the inner wall of the melting box. The exhaust pipe is equipped with a filter mechanism, which includes a filter plate and a threaded rod. An installation groove is provided at the upper end of the outer wall of one side of the exhaust pipe, and a moving groove is provided at the inner side of the exhaust pipe. A limiting block is threadedly connected to the upper end of the outer wall of the threaded rod. The limiting block slides inside the moving groove, and the upper end of the limiting block passes through the exhaust pipe and is snapped into the filter plate. The above technical solution allows cooling water to be introduced through cooling channels inside the stirring rods to prevent overheating and damage. The active gear meshes with the driven gear fixedly connected to the stirring rods, enabling the two stirring rods to stir the internal slag material and avoid uneven heating. Furthermore, the filter plate is slid into the mounting groove and secured by a limiting block. The limiting block is then disengaged by a rotating threaded rod, facilitating easy installation and removal of the filter plate.

[0007] Furthermore, the upper ends of the outer walls of the ash storage box are all fixedly connected to support frames, the lower ends of the ash storage box are hinged to discharge cover plates, and the lower ends of the outer walls on both sides of the melting box are provided with two inert gas heating nozzles. Through the above technical solution, the support frame fixedly connected to the ash storage box can provide stable support for the entire device and provide operating space for opening and closing the discharge cover. When the discharge cover is opened, the molten slag inside can be discharged. The inert gas heating nozzle can be connected to the external inert gas torch, so that the plasma gas flow formed after the inert gas is heated at high temperature is sprayed onto the slag for heating.

[0008] Furthermore, a first servo motor is provided in the middle of the inner wall of the front end of the rotating groove. The output shaft of the first servo motor is fixedly connected to the drive gear, and the rear end of the drive gear is rotatably connected to the inner wall of the rear end of the rotating groove. Through the above technical solution, the first servo motor installed inside the rotating groove enables the drive gear to rotate inside the rotating groove. By using the meshing connection between the drive gear and the driven gear, the two stirring rods can rotate simultaneously to stir the slag inside and prevent excessive accumulation.

[0009] Furthermore, connectors are fixedly connected to both sides of the middle of the outer wall of the front and rear ends of the melting box, and sealing rings are fixedly connected to both the front and rear ends of the stirring rod, with the sealing rings tightly fitted to the melting box. The above technical solution allows the connector fixed to the melting tank to be connected to an external cooling water pipe with multiple bolts, providing cooling water to the internal cooling channel of the stirring rod and preventing the stirring rod from overheating and being damaged. A sealing ring is fixed at the front and rear ends of the stirring rod to seal the gap between the stirring rod and the melting tank, preventing cooling water leakage.

[0010] Furthermore, the outer walls of both the front and rear ends of the filter plate are slidably connected to the mounting groove, and a sealing ring is fixedly connected to the edge of the outer wall of the rear end of the filter plate, and the outer wall of the rear end of the sealing ring is tightly fitted to the exhaust pipe. The above technical solution uses a sealing ring fixedly connected to the filter plate to seal the gap between the filter plate and the exhaust pipe when the filter plate slides into the installation groove, thereby improving the sealing performance and preventing exhaust gas leakage. The exhaust pipe, along with multiple bolts and nuts, can be connected to an external exhaust pipe, allowing an external exhaust fan to extract the exhaust gas.

[0011] Furthermore, the bottom surface inside the movable groove is rotatably connected to the threaded rod, and a dial wheel is fixedly connected to the middle of the outer wall of the threaded rod. One side of the dial wheel passes through the movable groove to the outside of the exhaust pipe. The above technical solution involves a dial wheel fixedly connected to the threaded rod, with one side of the dial wheel extending through the exhaust pipe. This allows the operator to easily rotate the threaded rod, thereby moving the limiting block within the moving groove and changing the engagement state between the limiting block and the filter plate.

[0012] Furthermore, a PLC control panel is provided at the upper end of one side of the outer wall of the front end of the melting box, and a feed hopper is connected through the middle of the upper end of the outer wall of the front end of the melting box. A feed cover plate is hinged to the rear end of the upper end of the feed hopper. The above technical solution allows operators to easily control the operation of the entire device using a PLC control panel installed on the melting tank. The feed hopper connected through the melting tank can temporarily store the slag to be melted, and the feed cover can seal the feed hopper to prevent leakage.

[0013] Furthermore, a protective shell is fixedly connected to the outer wall of the front end of the feed hopper, and a second servo motor is provided on the bottom surface inside the protective shell. The output shaft of the second servo motor passes through the protective shell and is fixedly connected to a conveying rod. By using the above technical solution, the second servo motor can be protected by placing it inside the protective shell. The second servo motor can drive the conveying rod to rotate in the feed hopper, and the auger blades fixedly connected to the conveying rod can slowly feed the slag into the melting box, avoiding feeding too much at once.

[0014] This utility model has the following beneficial effects: 1. The present invention proposes a hazardous waste incineration ash melting furnace using an inert gas torch. Cooling water is introduced through a cooling channel opened inside the stirring rod in the rotating mechanism to prevent the stirring rod from overheating and being damaged. The active gear meshes with the driven gear fixedly connected to the stirring rod, so that the two stirring rods can stir the slag inside, thereby avoiding uneven heating and improving the melting efficiency.

[0015] 2. The present invention proposes a hazardous waste incineration ash melting furnace using an inert gas torch. The filter plate in the filter mechanism slides into the installation groove and is fixed by a limiting block. The rotating threaded rod drives the limiting block to move down and release the filter plate, thereby facilitating the installation and disassembly of the filter plate and reducing the difficulty for workers to replace or clean the filter plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a hazardous waste incineration ash melting furnace using an inert gas torch, as proposed in this utility model. Figure 2 An exploded view of a hazardous waste incineration ash melting furnace using an inert gas torch, as proposed in this utility model. Figure 3 A cross-sectional view of a hazardous waste incineration ash melting furnace using an inert gas torch, as proposed in this utility model; Figure 4 This is a side sectional view of a hazardous waste incineration ash melting furnace using an inert gas torch, as proposed in this utility model. Figure 5 This is a front sectional view of a hazardous waste incineration ash melting furnace using an inert gas torch, as proposed in this utility model. Figure 6 for Figure 4 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged view of point B in the middle.

[0017] Explanation of reference numerals in the attached figures: 1. Melting box; 2. Ash storage box; 3. Support frame; 4. Exhaust pipe; 5. Rotating mechanism; 501. Connector; 502. Rotating groove; 503. First servo motor; 504. Drive gear; 505. Stirring rod; 506. Driven gear; 507. Sealing ring; 508. Cooling channel; 6. Grid plate; 7. Discharge cover plate; 8. Inert gas heating nozzle; 9. Filtration mechanism; 901. Mounting groove; 902. Filter plate; 903. Sealing ring; 904. Moving groove; 905. Threaded rod; 906. Dial wheel; 907. Limiting block; 10. PLC control panel; 11. Feed hopper; 12. Feed cover plate; 13. Protective shell; 14. Second servo motor; 15. Conveying rod. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 This utility model provides a specific implementation method: A hazardous waste incineration ash melting furnace using an inert gas torch includes a melting box 1, an ash storage box 2, and a flue pipe 4. The lower end of the melting box 1 is fixedly connected to the ash storage box 2. The flue pipe 4 is connected through the middle of the upper end of the melting box 1. A rotating mechanism 5 is provided inside the melting box 1. The rotating mechanism 5 includes a driving gear 504 and two stirring rods 505. A rotating groove 502 is opened in the middle of the front end of the melting box 1. A driven gear 506 is fixedly connected to the front end of the outer wall of the stirring rod 505. The driven gears 506 are all meshed with the driving gear 504. Cooling channels 508 are opened inside the stirring rods 505. A grid plate 6 is fixedly connected to the lower end of the inner wall of the melting box 1. Cooling water is introduced through the cooling channel 508 inside the stirring rod 505 in the rotating mechanism 5 to prevent the stirring rod 505 from overheating and being damaged. The active gear 504 meshes with the driven gear 506 fixedly connected to the stirring rod 505, so that the two stirring rods 505 can stir the slag inside, thereby avoiding uneven heating and improving melting efficiency.

[0020] The upper ends of the outer walls of the ash storage box 2 are all fixedly connected to support frames 3, and the lower ends of the ash storage box 2 are hinged to discharge cover plates 7. Two inert gas heating nozzles 8 are installed at the lower ends of the outer walls on both sides of the melting box 1. The support frames 3 fixedly connected to the ash storage box 2 provide stable support for the entire device and provide operating space for opening and closing the discharge cover plates 7. When the discharge cover plates 7 are opened, the molten slag inside can be discharged. The inert gas heating nozzles 8 can be connected to an external inert gas torch, allowing the high-temperature heated inert gas to form a plasma flow that is sprayed onto the slag for heating. A first servo motor 503 is installed in the middle of the inner wall at the front end of the rotating trough 502. The first servo motor 503... The output shaft is fixedly connected to the drive gear 504. The rear end of the drive gear 504 is rotatably connected to the inner wall of the rear end of the rotating groove 502. The drive gear 504 can be rotated within the rotating groove 502 by the first servo motor 503 installed inside the rotating groove 502. The drive gear 504 meshes with the driven gear 506, allowing the two stirring rods 505 to rotate simultaneously, stirring the slag inside and preventing excessive accumulation. Connectors 501 are fixedly connected to both sides of the middle of the outer wall at the front and rear ends of the melting box 1. Sealing rings 507 are fixedly connected to both the front and rear ends of the stirring rods 505. The sealing rings 507 are tightly fitted to the melting box 1. The connecting heads 501 fixedly connected to the melting box 1 are matched with the... Multiple bolts can be connected to external cooling water pipes to provide cooling water to the internal cooling channel 508 of the stirring rod 505, preventing the stirring rod 505 from overheating and being damaged. A sealing ring 507 is fixed on the front and rear ends of the stirring rod 505 to seal the gap between the stirring rod 505 and the melting tank 1, preventing cooling water leakage. A PLC control panel 10 is installed on the upper end of one side of the front outer wall of the melting tank 1. A feed hopper 11 is connected through the middle of the upper end of the front outer wall of the melting tank 1. A feed cover plate 12 is hinged to the rear end of the upper end of the feed hopper 11. The PLC control panel 10 on the melting tank 1 allows the operator to easily control the operation of the entire device. The connected feed hopper 11 can temporarily store the slag to be melted, and the feed cover plate 12 can seal the feed hopper 11 to prevent leakage. A protective shell 13 is fixedly connected to the outer wall of the front end of the feed hopper 11. A second servo motor 14 is provided on the bottom surface inside the protective shell 13. The output shaft of the second servo motor 14 passes through the protective shell 13 and is fixedly connected to the conveying rod 15. By placing the second servo motor 14 inside the protective shell 13, a certain degree of protection can be provided for the second servo motor 14. The second servo motor 14 can drive the conveying rod 15 to rotate inside the feed hopper 11. Then, the auger blades fixedly connected to the conveying rod 15 can slowly feed the slag into the melting box 1, avoiding feeding too much at once.

[0021] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 The exhaust pipe 4 is equipped with a filter mechanism 9, which includes a filter plate 902 and a threaded rod 905. An installation groove 901 is provided on the upper end of the outer wall of one side of the exhaust pipe 4, and a moving groove 904 is provided on one side of the interior of the exhaust pipe 4. A limiting block 907 is threadedly connected to the upper end of the outer wall of the threaded rod 905. The limiting block 907 slides inside the moving groove 904. The upper end of the limiting block 907 passes through the exhaust pipe 4 and is snapped into the filter plate 902.

[0022] The filter plate 902 in the filter mechanism 9 slides into the mounting groove 901 and is locked in place by the limiting block 907. The filter plate 902 is fixed in place by the limiting block 907 being locked in place by the rotating threaded rod 905. This makes it easier to install and remove the filter plate 902 and reduces the difficulty for workers to replace or clean the filter plate 902.

[0023] The outer walls of both the front and rear ends of the filter plate 902 are slidably connected to the mounting groove 901. A sealing ring 903 is fixedly connected to the edge of the rear outer wall of the filter plate 902. The outer wall of the rear end of the sealing ring 903 fits tightly against the exhaust pipe 4. By using the sealing ring 903 fixedly connected to the filter plate 902, the gap between the filter plate 902 and the exhaust pipe 4 can be sealed when the filter plate 902 slides into the mounting groove 901, improving the sealing performance and preventing exhaust gas leakage. The exhaust pipe 4, with the help of multiple bolts and nuts, can be connected to an external exhaust pipe, allowing external exhaust gas to pass through. The exhaust fan can extract the exhaust gas. The bottom surface inside the moving slot 904 is rotatably connected to the threaded rod 905. A dial wheel 906 is fixedly connected to the middle of the outer wall of the threaded rod 905. One side of the dial wheel 906 passes through the moving slot 904 to the outside of the exhaust pipe 4. By using the dial wheel 906 fixedly connected to the threaded rod 905 and having one side of the dial wheel 906 pass through the exhaust pipe 4, the operator can easily rotate the threaded rod 905, thereby driving the limiting block 907 to move within the moving slot 904, changing the engagement state between the limiting block 907 and the filter plate 902.

[0024] Working principle: When using the hazardous waste incineration ash melting furnace with an inert gas torch, the operator first supplies power to the device with an external power source and connects the cooling water delivery pipe to the connector 501 with multiple bolts and nuts. Then, the operator connects the exhaust pipe to the exhaust pipe with multiple bolts and nuts and the opening on the exhaust pipe 4. Then, the inert gas torch is connected to the inert gas heating nozzle 8. Finally, slag is added to the feed hopper 11 and the feed cover 12 is closed. Next, the second servo motor 14 is started using the PLC control panel 10 to drive the conveyor rod 15 to rotate, sending the slag into the melting box 1. Then, an inert gas torch is used in conjunction with an inert gas heating nozzle 8 for heating. The first servo motor 503 is started using the PLC control panel 10 to drive the drive gear 504 to rotate. The drive gear 504 meshes with the driven gear 506 fixedly connected to the stirring rod 505, so that the two stirring rods 505 can stir the slag inside. Cooling water is introduced into the cooling channel 508 opened inside the stirring rod 505 to cool the stirring rod 505 and prevent overheating damage. Finally, during the melting process, the exhaust fan on the exhaust pipe is used to extract the air, and the exhaust gas is filtered through the filter plate 902. After the melting is completed, the staff opens the discharge cover plate 7 to collect the waste residue. Then, the staff uses the dial wheel 906 to drive the threaded rod 905 to rotate, so that the limiting block 907 releases the jamming state of the filter plate 902, and the filter plate 902 is taken out for replacement or cleaning.

[0025] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0026] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hazardous waste incineration ash melting furnace using an inert gas torch, comprising a melting box (1), an ash storage box (2), and a flue pipe (4), characterized in that: The lower end of the melting box (1) is fixedly connected to the ash storage box (2). A flue pipe (4) is connected through the middle of the upper end of the melting box (1). A rotating mechanism (5) is provided inside the melting box (1). The rotating mechanism (5) includes a drive gear (504) and two stirring rods (505). A rotating groove (502) is opened in the middle of the front end of the melting box (1). A driven gear (506) is fixedly connected to the front end of the outer wall of the stirring rod (505). The driven gears (506) are all meshed with the drive gears (504). Cooling channels (508) are opened inside the stirring rods (505). A grid plate (6) is fixedly connected to the lower end of the inner wall of the melting box (1). The exhaust pipe (4) is equipped with a filter mechanism (9), which includes a filter plate (902) and a threaded rod (905). An installation groove (901) is provided on the upper end of the outer wall of one side of the exhaust pipe (4), and a moving groove (904) is provided on one side of the interior of the exhaust pipe (4). A limiting block (907) is threadedly connected to the upper end of the outer wall of the threaded rod (905). The limiting block (907) slides inside the moving groove (904). The upper end of the limiting block (907) passes through the exhaust pipe (4) and is snapped into the filter plate (902).

2. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: The upper end of the outer wall of the ash storage box (2) is fixedly connected to a support frame (3), the lower end of the ash storage box (2) is hinged to a discharge cover plate (7), and the lower end of the outer wall on both sides of the melting box (1) is provided with two inert gas heating nozzles (8).

3. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: A first servo motor (503) is provided in the middle of the inner wall of the front end of the rotating groove (502). The output shaft of the first servo motor (503) is fixedly connected to the drive gear (504). The rear end of the drive gear (504) is rotatably connected to the inner wall of the rear end of the rotating groove (502).

4. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: The front and rear sides of the outer wall of the melting box (1) are fixedly connected with connectors (501), and the front and rear sides of the stirring rod (505) are fixedly connected with sealing rings (507). The sealing rings (507) are tightly fitted to the melting box (1).

5. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: The outer walls of the front and rear ends of the filter plate (902) are slidably connected to the mounting groove (901). A sealing ring (903) is fixedly connected to the edge of the outer wall of the rear end of the filter plate (902). The outer wall of the rear end of the sealing ring (903) is tightly fitted to the exhaust pipe (4).

6. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: The bottom surface inside the movable groove (904) is rotatably connected to the threaded rod (905). A dial wheel (906) is fixedly connected to the middle of the outer wall of the threaded rod (905). One side of the dial wheel (906) passes through the movable groove (904) to the outside of the exhaust pipe (4).

7. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 1, characterized in that: A PLC control panel (10) is provided on the upper end of one side of the front outer wall of the melting box (1). A feed hopper (11) is connected through the middle of the upper end of the front outer wall of the melting box (1). A feed cover plate (12) is hinged to the rear end of the upper end of the feed hopper (11).

8. A hazardous waste incineration ash melting furnace using an inert gas torch according to claim 7, characterized in that: A protective shell (13) is fixedly connected to the outer wall of the front end of the feed hopper (11). A second servo motor (14) is provided on the bottom surface inside the protective shell (13). The output shaft of the second servo motor (14) passes through the protective shell (13) and is fixedly connected to a conveying rod (15).

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