A hazardous waste high-temperature pyrolysis gasification furnace

Abstract

The utility model provides a kind of dangerous waste high-temperature pyrolysis gasification furnace, comprising: outer tank, the inner side surface of the outer tank is fixedly installed with heating element and inner tank, the heating element is set to the outer side surface of the inner tank;Blocking component, the blocking component is set to the bottom of the outer tank, the blocking component includes installation frame and gate, the installation frame is fixedly installed in the bottom of the outer tank, the gate is slidably connected to the inner side surface of the installation frame;Top plate, the top plate is fixedly installed in the top of the outer tank and the inner tank.The utility model provides a kind of dangerous waste high-temperature pyrolysis gasification furnace, by setting blocking component, after pyrolysis is completed, reaction container is unloaded without lifting, simplify operation process, reduce the security risk of high-temperature lifting, improve processing efficiency;Scraping assembly is driven under the stirring assembly, can effectively clean the material residue of inner tank inner wall, improve resource recovery rate, ensure the purity of subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste treatment equipment, and in particular to a high-temperature pyrolysis gasification furnace for hazardous waste. Background Technology

[0002] With the acceleration of industrialization and the rapid development of the social economy, the generation of various hazardous wastes continues to rise, including a variety of highly hazardous and highly recyclable categories such as spent three-way catalytic converters, spent batteries, and medical waste. Taking spent three-way catalytic converters as an example, as a core component of automotive exhaust purification systems, they contain scarce platinum group metals such as platinum, palladium, and rhodium, and have extremely high resource recycling value. However, if such hazardous wastes are not handled properly, they will not only cause environmental risks such as heavy metal pollution and toxic gas leaks, but also lead to the waste of valuable resources.

[0003] Currently, high-temperature pyrolysis gasification technology is commonly used to treat hazardous waste from three-way catalytic converters. This technology involves heating the material in a closed environment to induce a thermochemical reaction, achieving volume reduction, harmlessness, and resource recovery. For example, the prior art, patent number CN217527415 U, provides a pyrolysis device for waste three-way catalytic converter powder. This device consists of a purification unit, a heating chamber, and a support frame mounted on the upper surface of a base plate. The purification unit is connected to the heating chamber, which contains heating tubes. The input end of the heating tubes is electrically connected to the output end of an external control switch group. The stirring unit includes a fixed plate, a motor, a rotating shaft, a mounting base, an electromagnet, a connecting shaft, spiral blades, a connecting base, a sliding plate, a reaction chamber, and a lifting assembly. The lifting assembly is mounted on the support frame and connected to a cover plate. Two fixed plates are mounted on the cover plate, and a motor is positioned between the two fixed plates. The output shaft of the motor is connected to the rotating shaft. This invention can accelerate the pyrolysis of waste three-way catalytic converter powder, improve the production efficiency of pyrolysis, and treat the waste gas generated during pyrolysis, avoiding environmental pollution.

[0004] However, after pyrolysis, the reaction vessel needs to be hoisted out of the heating chamber as a whole before the material can be unloaded. The operation process is cumbersome, and hoisting at high temperatures poses safety hazards and reduces processing efficiency. Furthermore, the lack of an effective internal wall cleaning structure results in a high material residue rate, which affects the purity of subsequent batches and reduces the resource recovery rate.

[0005] Therefore, it is necessary to provide a high-temperature pyrolysis gasification furnace for hazardous waste to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a high-temperature pyrolysis gasification furnace for hazardous waste, which solves the problems of cumbersome unloading, safety hazards, and high material residue rate caused by incomplete cleaning of the inner wall in existing hazardous waste pyrolysis devices.

[0007] To solve the above-mentioned technical problems, this utility model provides a high-temperature pyrolysis gasification furnace for hazardous waste, comprising: An outer tank, wherein a heating element and an inner tank are fixedly installed on the inner side of the outer tank, and the heating element is disposed on the outer side of the inner tank; A blocking assembly is disposed at the bottom of the outer tank. The blocking assembly includes a mounting frame and a gate. The mounting frame is fixedly installed at the bottom of the outer tank, and the gate is slidably connected to the inner side of the mounting frame. A top plate, which is fixedly installed on the top of the outer tank and the inner tank; A stirring assembly is disposed on the inner side of the inner tank. The stirring assembly includes a drive motor, a rotating shaft, and stirring blades. The drive motor is fixedly installed on the top of the top plate, the rotating shaft is fixedly installed on the bottom of the drive motor, and the stirring blades are fixedly installed on the outer side of the rotating shaft. Two scraping components are respectively disposed on both sides of the stirring blade. Each scraping component includes a scraper and a connecting rod. One side of the scraper is attached to the inner side of the inner tank, one end of the connecting rod is fixedly installed on the other side of the scraper, and the other end of the connecting rod is fixedly installed on the side of the rotating shaft.

[0008] Preferably, support rods are fixedly installed around the sides of the outer tank, and a material discharge trough is provided at the bottom of the inner tank, with the interior of the material discharge trough communicating with the interior of the mounting frame.

[0009] Preferably, the blocking assembly further includes a handle, which is fixedly installed at one end of the gate.

[0010] Preferably, a feeding pipe is fixedly installed at the bottom of the mounting frame, and the interior of the feeding pipe is in communication with the interior of the mounting frame.

[0011] Preferably, an exhaust pipe is fixedly installed on the top of the top plate.

[0012] Preferably, a feed frame is fixedly installed on the top of the top plate, and a cover plate is rotatably connected to the top of the feed frame.

[0013] Preferably, the outer can has an internal cavity, and an insulation component is fixedly installed inside the cavity.

[0014] Compared with related technologies, the high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model has the following beneficial effects: This utility model provides a high-temperature pyrolysis gasification furnace for hazardous waste. By setting up a blocking component, it enables unloading after pyrolysis without hoisting the reaction vessel, simplifying the operation process, reducing the safety risks of high-temperature hoisting, and improving processing efficiency. The scraping component, driven by the stirring component, can effectively clean the material residue on the inner wall of the inner tank, improve the resource recovery rate, and ensure the purity of subsequent processing. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a first embodiment of a high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the outer tank. Figure 3 for Figure 2 The diagram shows another perspective. Figure 4 for Figure 1 The diagram shows the structure of the stirring assembly. Figure 5 This is a schematic diagram of the second embodiment of a high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model.

[0016] The following are the labels in the diagram: 1. Outer tank, 11. Heating element, 12. Inner tank, 13. Feed chute, 14. Support rod, 2. Blocking assembly, 21. Mounting frame, 22. Gate, 23. Handle, 3. Feed pipe, 4. Top plate, 5. Exhaust pipe, 6. Stirring assembly, 61. Drive motor, 62. Rotating shaft, 63. Stirring blade, 7. Feed frame, 71. Cover plate, 8. Scraping assembly, 81. Scraper, 82. Connecting rod, 9. Cavity, 10. Insulation component. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] First Embodiment

[0019] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the outer tank. Figure 3 for Figure 2 The diagram shows another perspective. Figure 4 for Figure 1 The diagram shows the structure of the stirring assembly.

[0020] A high-temperature pyrolysis gasification furnace for hazardous waste includes: an outer tank 1, wherein a heating element 11 and an inner tank 12 are fixedly installed on the inner side of the outer tank 1, and the heating element 11 is disposed on the outer side of the inner tank 12; A blocking component 2 is disposed at the bottom of the outer tank 1. The blocking component 2 includes a mounting frame 21 and a gate 22. The mounting frame 21 is fixedly installed at the bottom of the outer tank 1, and the gate 22 is slidably connected to the inner side of the mounting frame 21. Top plate 4, which is fixedly installed on the top of the outer tank 1 and the inner tank 12; A stirring assembly 6 is disposed on the inner side of the inner tank 12. The stirring assembly 6 includes a drive motor 61, a rotating shaft 62, and a stirring blade 63. The drive motor 61 is fixedly installed on the top of the top plate 4, the rotating shaft 62 is fixedly installed on the bottom of the drive motor 61, and the stirring blade 63 is fixedly installed on the outer side of the rotating shaft 62. Two scraping components 8 are respectively disposed on both sides of the stirring blade 63. Each scraping component 8 includes a scraper 81 and a connecting rod 82. One side of the scraper 81 is attached to the inner side of the inner tank 12, one end of the connecting rod 82 is fixedly installed on the other side of the scraper 81, and the other end of the connecting rod 82 is fixedly installed on the side of the rotating shaft 62.

[0021] Support rods 14 are fixedly installed around the sides of the outer tank 1. A material discharge groove 13 is provided at the bottom of the inner tank 12. The interior of the material discharge groove 13 is connected to the interior of the mounting frame 21.

[0022] The blocking assembly 2 also includes a handle 23, which is fixedly installed at one end of the gate 22.

[0023] The bottom of the mounting frame 21 is fixedly installed with a feeding pipe 3, and the interior of the feeding pipe 3 is in communication with the interior of the mounting frame 21.

[0024] An exhaust pipe 5 is fixedly installed on the top of the top plate 4.

[0025] A feed frame 7 is fixedly installed on the top of the top plate 4, and a cover plate 71 is rotatably connected to the top of the feed frame 7.

[0026] The heating element 11 can be a high-temperature resistant electric heating tube or a gas heating device, which can provide a continuous and stable high-temperature heat source for the inner tank 12 to meet the high-temperature environment required for the pyrolysis and gasification of hazardous waste (usually 800-1200℃); the inner tank 12, as a direct reaction container for hazardous waste, is made of high-temperature resistant and corrosion-resistant alloy materials, such as 310S stainless steel, which can withstand the chemical reactions and physical impacts during the high-temperature pyrolysis process; The mounting frame 21 is fixedly installed at the bottom of the outer tank 1 by bolts, and its interior forms a channel corresponding to the material discharge trough 13 at the bottom of the inner tank 12. The material discharge channel is opened and closed by sliding the gate 22. Two scraping components 8 are respectively set on both sides of the stirring blade 63 to clean the material residue on the inner wall of the inner tank 12; one end of the connecting rod 82 is fixedly connected to the other side of the scraper 81, and the other end is fixedly installed on the side of the rotating shaft 62; when the rotating shaft 62 rotates, the connecting rod 82 drives the scraper 81 to rotate synchronously, scraping off the material attached to the inner wall of the inner tank 12, ensuring that the material fully participates in the reaction and improving the resource recovery rate; The feed frame 7 facilitates the feeding of the three-way catalyst powder to be used for pyrolysis into the inner tank 12 during use, and the cover plate 71 can seal the top of the feed frame 7.

[0027] The working principle of the high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model is as follows: In use, first open the cover plate 71, and add the three-way catalyst and catalyst powder into the inner tank 12 through the feed frame 7, then close the cover plate 71; start the heating element 11 to heat the inner tank 12, raising the internal temperature of the inner tank 12 to meet the temperature conditions required for the pyrolysis and gasification of hazardous waste, thereby gasifying the hazardous waste and refining the platinum and rhodium powder; at the same time, start the drive motor 61, which drives the rotating shaft 62 to rotate, and the rotating shaft 62 drives the stirring blade 63 to rotate, stirring the hazardous waste inside, so that the material is heated evenly and the pyrolysis and gasification reaction is accelerated; While the rotating shaft 62 rotates, it drives the scraper 81 to rotate through the connecting rod 82. Since one side of the scraper 81 is attached to the inner side of the inner tank 12, the scraper 81 can scrape off the material adhering to the inner wall of the inner tank 12 during the rotation process, avoiding material residue. The gas generated during the pyrolysis and gasification process is discharged through the exhaust pipe 5 for subsequent purification treatment. After the hazardous waste has been pyrolyzed and gasified, the gate 22 is pulled by the handle 23, causing the gate 22 to slide inside the mounting frame 21, opening the discharge channel. The residue containing platinum and rhodium powder after pyrolysis will enter the mounting frame 21 through the discharge trough 13 at the bottom of the inner tank 12, and then be discharged through the discharge pipe 3 at the bottom of the mounting frame 21, completing the unloading process.

[0028] Compared with related technologies, the high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model has the following beneficial effects: By setting up the blocking component 2, unloading can be achieved without hoisting the reaction vessel after pyrolysis, which simplifies the operation process, reduces the safety risks of high-temperature hoisting, and improves the processing efficiency. The scraping component 8, driven by the stirring component 6, can effectively clean the material residue on the inner wall of the inner tank 12, improve the resource recovery rate, and ensure the purity of subsequent processing.

[0029] Second Embodiment

[0030] Please refer to the following: Figure 5 Based on the first embodiment of this application which provides a high-temperature pyrolysis gasification furnace for hazardous waste, the second embodiment of this application proposes another high-temperature pyrolysis gasification furnace for hazardous waste. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0031] Specifically, the difference in the second embodiment of this application regarding a high-temperature pyrolysis gasification furnace for hazardous waste is that the outer tank 1 of the high-temperature pyrolysis gasification furnace for hazardous waste has a cavity 9 inside, and an insulation component 10 is fixedly installed inside the cavity 9.

[0032] The insulation component 10 is made of ceramic fiber cotton or aluminum silicate fiber felt. These materials have excellent high temperature resistance (long-term operating temperature can reach over 1000℃), which can directly block the high temperature conducted from the inner tank 12 to the outer tank 1, and prevent the outer tank from being damaged due to excessive temperature.

[0033] The working principle of the high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model is as follows: During the operation of the device, the insulation component 10 in the cavity 9 inside the outer tank 1 can reduce the heat exchange between the inner tank 12 and the external environment, reduce the rate of heat loss, and enable the inner tank 12 to maintain a temperature range suitable for the pyrolysis and gasification of hazardous waste for a longer period of time, thereby reducing the working frequency of the heating component 11 and saving energy.

[0034] Compared with related technologies, the high-temperature pyrolysis gasification furnace for hazardous waste provided by this utility model has the following beneficial effects: By installing an insulation component 10 in the cavity 9 inside the outer tank 1, the insulation performance of the device is enhanced, effectively reducing heat loss, improving energy utilization, and lowering processing costs. At the same time, it also makes the temperature of the inner tank 12 more stable, which is conducive to the stable progress of the pyrolysis and gasification reaction of hazardous waste and improves the processing effect.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-temperature pyrolysis gasification furnace for hazardous waste, characterized in that, include: An outer tank, wherein a heating element and an inner tank are fixedly installed on the inner side of the outer tank, and the heating element is disposed on the outer side of the inner tank; A blocking assembly is disposed at the bottom of the outer tank. The blocking assembly includes a mounting frame and a gate. The mounting frame is fixedly installed at the bottom of the outer tank, and the gate is slidably connected to the inner side of the mounting frame. A top plate, which is fixedly installed on the top of the outer tank and the inner tank; A stirring assembly is disposed on the inner side of the inner tank. The stirring assembly includes a drive motor, a rotating shaft, and stirring blades. The drive motor is fixedly installed on the top of the top plate, the rotating shaft is fixedly installed on the bottom of the drive motor, and the stirring blades are fixedly installed on the outer side of the rotating shaft. Two scraping components are respectively disposed on both sides of the stirring blade. Each scraping component includes a scraper and a connecting rod. One side of the scraper is attached to the inner side of the inner tank, one end of the connecting rod is fixedly installed on the other side of the scraper, and the other end of the connecting rod is fixedly installed on the side of the rotating shaft.

2. The high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, Support rods are fixedly installed around the sides of the outer tank, and a material discharge trough is provided at the bottom of the inner tank. The interior of the material discharge trough is connected to the interior of the mounting frame.

3. The high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, The blocking assembly also includes a handle, which is fixedly installed at one end of the gate.

4. The high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, A feeding pipe is fixedly installed at the bottom of the mounting frame, and the interior of the feeding pipe is connected to the interior of the mounting frame.

5. A high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, An exhaust pipe is fixedly installed on the top of the top plate.

6. A high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, A feed frame is fixedly installed on the top of the top plate, and a cover plate is rotatably connected to the top of the feed frame.

7. A high-temperature pyrolysis gasification furnace for hazardous waste according to claim 1, characterized in that, The outer tank has an internal cavity, and an insulation component is fixedly installed inside the cavity.

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