A rotary kiln type microwave plasma hazardous waste treatment device

By combining a rotary kiln-type filter screen and an activated carbon box, the problem of reduced purification efficiency in plasma gasification devices is solved, achieving efficient and stable purification of harmful gases and environmentally friendly emissions.

CN224331858UActive Publication Date: 2026-06-09SHANGHAI HANYI ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HANYI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The efficiency of the exhaust gas purification components in existing plasma gasification devices has decreased, making it difficult to maintain a high-efficiency purification effect for a long time, which affects the system performance and reliability.

Method used

It adopts a rotary kiln structure, combined with a filter screen and activated carbon box. The filter screen intercepts solid particulate matter, the activated carbon adsorbs harmful gases, and an exhaust fan is equipped to purify the gas. The filter screen and activated carbon are removable and replaceable.

Benefits of technology

It achieves efficient and deep purification, completely decomposes harmful gases, maintains stable purification effect, ensures that emitted gases meet environmental protection standards, and is easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotary kiln type microwave plasma dangerous waste treatment device relates to plasma dangerous waste treatment technical field, including the processing box, the top one side of processing box is provided with gasification furnace, the inside of processing box is provided with filter screen, the top of filter screen is provided with draw -in rod, the inside of processing box is provided with activated carbon tank one side close to filter screen, the top of activated carbon tank is provided with handle. The utility model discloses a filter screen and in the activated carbon tank of having the activated carbon material of inside equipment can carry out the depth purification to the gas after plasma gasification treatment, and its advantage lies in: filter screen can efficiently intercept the solid particulate matter produced in the gasification process, and activated carbon can further adsorb the harmful gas remaining in the tail gas owing to the huge specific surface area and strong adsorption performance, realizes multiple purification effect, ensures that the emission gas meets the environmental protection standard, and the filter screen can be taken out from the processing box by pulling the draw -in rod upwards, and it is cleaned.
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Description

Technical Field

[0001] This utility model relates to the field of plasma hazardous waste treatment technology, specifically a rotary kiln type microwave plasma hazardous waste treatment device. Background Technology

[0002] In physics, plasma refers to a partially ionized gas composed of free electrons, charged ions, and neutral particles. It is the fourth state of matter and is widely present in the universe; its presence can be observed in natural phenomena such as lightning and auroras. In industrial applications, plasma technology, due to its high temperature and high energy density, is used in various fields such as waste treatment and materials processing. When this technology is applied to the treatment of hazardous waste, the concept of "plasma hazardous waste" arises. Hazardous waste refers to waste that possesses properties such as toxicity, corrosiveness, flammability, reactivity, or infectiousness, and may pose a threat to the environment or human health. These wastes come from a wide range of sources, including but not limited to byproducts or wastes from industries such as chemical production, pharmaceutical manufacturing, electronics, and pesticide use.

[0003] However, current plasma gasification devices used for hazardous waste treatment suffer from the following technical shortcomings: The harmful gas absorption components are mostly fixed structures, leading to a significant decrease in adsorption efficiency after long-term continuous operation, making functional recovery difficult and resulting in deteriorated exhaust gas purification effects, severely impacting the overall system performance. These deficiencies severely restrict the engineering applicability and long-term operational reliability of plasma gasification technology. Therefore, we provide a rotary kiln-type microwave plasma hazardous waste treatment device. Utility Model Content

[0004] The purpose of this invention is to provide a rotary kiln microwave plasma hazardous waste treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary kiln microwave plasma hazardous waste treatment device, comprising a treatment box, a gasifier installed on one side of the top of the treatment box, a filter screen installed inside the treatment box, a pull rod installed on the top of the filter screen, an activated carbon box installed inside the treatment box near the filter screen, a handle installed on the top of the activated carbon box, a placement groove installed inside the activated carbon box, a top plate installed on the top of the treatment box near the activated carbon box, an exhaust trough installed on the side of the treatment box away from the gasifier, an exhaust fan installed on the side of the exhaust trough away from the treatment box, and a support installed at the bottom of the exhaust fan.

[0006] As a further preferred embodiment of this technical solution, a gasifier is fixedly installed on one side of the top of the processing box, and a filter screen is connected to the inside of the processing box.

[0007] As a further preferred embodiment of this technical solution, the top of the filter extends through the top of the processing box to the outside, and a pull rod is fixedly connected to the top of the filter.

[0008] As a further preferred embodiment of this technical solution, the activated carbon box is placed inside the treatment box through a slot opened at the top of the treatment box.

[0009] As a further preferred embodiment of this technical solution, a handle is fixedly connected to the top of the activated carbon box, and a top plate is movably connected to the top of the treatment box near the activated carbon box.

[0010] As a further preferred embodiment of this technical solution, an exhaust chute is fixedly connected to a slot on the side of the processing box away from the gasifier.

[0011] As a further preferred embodiment of this technical solution, the other end of the exhaust groove is fixedly connected to the output end of the exhaust fan, and a bracket is fixedly connected to the bottom of the exhaust fan.

[0012] This utility model provides a rotary kiln-type microwave plasma hazardous waste treatment device, which has the following features:

[0013] Beneficial effects:

[0014] This invention utilizes a filter and activated carbon material within an activated carbon box to deeply purify the gas after plasma gasification. Its advantages include: the filter efficiently intercepts solid particles generated during gasification, while the activated carbon, with its large specific surface area and strong adsorption properties, further adsorbs residual harmful gases in the exhaust gas, achieving multiple purification effects and ensuring that the emitted gas meets environmental standards. The filter can be removed from the treatment box by pulling the lever upwards for cleaning, and the activated carbon box can be removed by pulling the handle, allowing for replacement of the activated carbon material inside, ensuring the effectiveness of gas purification. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a rotary kiln-type microwave plasma hazardous waste treatment device according to the present invention.

[0016] Figure 2 This is a cross-sectional side view of a rotary kiln-type microwave plasma hazardous waste treatment device according to the present invention.

[0017] Figure 3 This is a partial side view structural diagram of a rotary kiln-type microwave plasma hazardous waste treatment device according to the present invention.

[0018] Figure 4 This is a partial front view of a rotary kiln-type microwave plasma hazardous waste treatment device according to the present invention.

[0019] In the diagram: 11. Processing box; 12. Gasifier; 13. Filter screen; 14. Pull rod; 15. Activated carbon box; 16. Handle; 17. Placement slot; 18. Top plate; 19. Exhaust duct; 110. Exhaust fan; 111. Support. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1-4 As shown, in this embodiment, a rotary kiln-type microwave plasma hazardous waste treatment device includes a treatment box 11. A gasifier 12 is installed on one side of the top of the treatment box 11. A filter screen 13 is installed inside the treatment box 11. The gasifier 12 is fixedly installed on one side of the top of the treatment box 11. The filter screen 13 is connected to the inside of the treatment box 11. A pull rod 14 is provided on the top of the filter screen 13. The top of the filter screen 13 extends through the top of the treatment box 11 to the outside. The pull rod 14 is fixedly connected to the top of the filter screen 13. An activated carbon box 15 is provided inside the treatment box 11 near the side of the filter screen 13. The activated carbon box 15 is placed inside the treatment box 11 through a slot opened on the top of the treatment box 11. A handle is provided on the top of the activated carbon box 15. 16. An internal placement slot 17 is provided in the activated carbon box 15. A top plate 18 is provided on the top of the processing box 11 near the activated carbon box 15. A handle 16 is fixedly connected to the top of the activated carbon box 15. The top plate 18 is movably connected to the top of the processing box 11 near the activated carbon box 15. An exhaust trough 19 is provided on the side of the processing box 11 away from the gasifier 12. An exhaust trough 19 is fixedly connected in a slot on the side of the processing box 11 away from the gasifier 12. An exhaust fan 110 is provided on the side of the exhaust trough 19 away from the processing box 11. A bracket 111 is provided at the bottom of the exhaust fan 110. The other end of the exhaust trough 19 is fixedly connected to the output end of the exhaust fan 110. A bracket 111 is fixedly connected to the bottom of the exhaust fan 110.

[0022] In this embodiment, when the device is needed to purify harmful gases, the gas can be guided into the gasification furnace 12 for plasma gasification. The advantage is that the high-temperature plasma arc breaks down harmful gas molecules into harmless small molecules, achieving efficient degradation. Simultaneously, the plasma reaction is fast and the treatment is thorough, significantly reducing the concentration of pollutants in the exhaust gas. Furthermore, the process requires no chemical additives, avoiding secondary pollution, thus combining environmental friendliness and economy. The harmful gases will then enter the treatment chamber 11, where the gas undergoing plasma gasification can be deeply purified through the provided filter 13 and the activated carbon material in the activated carbon box 15. Its advantages are: the filter screen 13 can efficiently intercept solid particles generated during the gasification process, while the activated carbon, with its huge specific surface area and strong adsorption performance, can further adsorb the residual harmful gases in the exhaust gas, achieving multiple purification effects and ensuring that the emitted gas meets environmental protection standards. The purified gas can be discharged through the exhaust fan 110. When the filter screen 13 needs to be removed, the pull rod 14 can be pulled upward to remove the filter screen 13 from the treatment box 11 for cleaning. In addition, the handle 16 can be pulled to remove the activated carbon box 15 from the treatment box 11, so that the activated carbon material inside can be replaced to ensure the effect of gas purification.

[0023] This utility model provides a rotary kiln-type microwave plasma hazardous waste treatment device, the specific working principle of which is as follows:

[0024] When this device is needed to purify harmful gases, the gas can first be precisely guided into the gasification furnace 12 for plasma gasification. The core advantage of this process is that, with the powerful energy generated by the high-temperature plasma arc, harmful gas molecules can be completely broken down into harmless small molecules. For example, complex organic pollutants can be decomposed into simple and harmless components such as carbon dioxide and water, thus achieving efficient and thorough degradation. At the same time, the plasma reaction speed is extremely fast, and the treatment of harmful gases can be completed in a very short time, significantly reducing the concentration of pollutants in the exhaust gas. More importantly, the entire treatment process does not require the addition of any chemical agents, fundamentally avoiding the secondary pollution problems that may be caused by the use of chemical agents, perfectly balancing environmental protection and economy. After plasma gasification, the gas will enter the treatment chamber 11 for further deep purification. In this stage, the filter 13 installed in the treatment chamber 11 plays an important role. It can efficiently intercept solid particles generated during the gasification process, preventing these particles from being discharged with the gas and causing pollution to subsequent emissions. The activated carbon material loaded in the activated carbon box 15, with its huge specific surface area and super adsorption performance, further adsorbs the residual harmful gases in the exhaust gas, ensuring that even trace amounts of harmful substances can be effectively removed. Through the synergistic effect of the filter screen 13 and the activated carbon material, multiple purification effects are achieved, effectively ensuring that the emitted gas meets strict environmental protection standards. In addition, the device is also equipped with an exhaust fan 110 to orderly discharge the purified gas. The design is also extremely convenient for daily maintenance. When the filter screen 13 needs to be cleaned, simply pull the lever 14 upwards to easily remove the filter screen 13 from the treatment box 11 for thorough cleaning, ensuring that the filtration effect of the filter screen 13 is always at its best. At the same time, by pulling the handle 16, the activated carbon box 15 can be smoothly removed from the treatment box 11, allowing for timely replacement of the saturated activated carbon material inside, ensuring that the purification effect of the device on the gas is continuous and stable, providing a reliable and efficient solution for the purification of harmful gases.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln-type microwave plasma hazardous waste treatment device, comprising a treatment tank (11), characterized in that: A gasifier (12) is provided on one side of the top of the processing box (11). A filter screen (13) is provided inside the processing box (11). A pull rod (14) is provided on the top of the filter screen (13). An activated carbon box (15) is provided inside the processing box (11) near the filter screen (13). A handle (16) is provided on the top of the activated carbon box (15). A placement slot (17) is provided inside the activated carbon box (15). A top plate (18) is provided on the top of the processing box (11) near the activated carbon box (15). An exhaust trough (19) is provided on the side of the processing box (11) away from the gasifier (12). An exhaust fan (110) is provided on the side of the exhaust trough (19) away from the processing box (11). A bracket (111) is provided at the bottom of the exhaust fan (110).

2. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: A gasifier (12) is fixedly installed on one side of the top of the processing box (11), and a filter screen (13) is connected inside the processing box (11).

3. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: The top of the filter (13) extends through the top of the processing box (11) to the outside, and a pull rod (14) is fixedly connected to the top of the filter (13).

4. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: The activated carbon box (15) is placed inside the treatment box (11) through a slot opened at the top of the treatment box (11).

5. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: A handle (16) is fixedly connected to the top of the activated carbon box (15), and a top plate (18) is movably connected to the top of the treatment box (11) near the activated carbon box (15).

6. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: An exhaust chute (19) is fixedly connected to a slot on the side of the processing box (11) away from the gasifier (12).

7. The rotary kiln-type microwave plasma hazardous waste treatment device according to claim 1, characterized in that: The other end of the exhaust trough (19) is fixedly connected to the output end of the exhaust fan (110), and a bracket (111) is fixedly connected to the bottom of the exhaust fan (110).