A multi-component circulating water-cooled plasma melting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-08-11
AI Technical Summary
[0004]为解决现有技术存在单层设计的水冷夹层可能会存在内部水流不均、接触面积不全面和水流停留时间较短的问题，进而会影响到对入料管、排烟管和等离子体炬的冷却效果的缺陷，本实用新型提供一种多组件循环水冷的等离子体熔融装置
[0014]该种多组件循环水冷的等离子体熔融装置，通过等离子体熔融炉、入料管、排烟管、安装口、等离子体炬和入炉式复合冷却组件的配合，在使用时，冷却液通过进水管经过外层水冷通道后进入内层水冷通道内，且冷却液在内层水冷通道内时，由于内层水冷通道的截面宽度小于外层水冷通道的截面宽度，因此冷却液进入内层水冷通道后流速变快，在此过程中，冷却液与外层水冷通道和内层水冷通道均充分接触，且发生折流以提高冷却液与内层水冷通道和外层水冷通道内整体的换热时间，进而可以有效提高装置整体冷却效果；
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Figure CN224622880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plasma melting equipment technology, specifically a multi-component circulating water-cooled plasma melting device. Background Technology
[0002] With increasingly stringent environmental policies, the demand for the harmless treatment of hazardous waste has surged. Traditional incineration methods pose a risk of secondary pollution, while landfill methods occupy land resources and pose a risk of leakage. Plasma melting technology, due to its advantages of high temperature and low oxidation atmosphere, has become a cutting-edge technology in the field of hazardous waste disposal. During the plasma melting process, a large amount of heat is generated, which can cause serious thermal damage to the equipment components, especially those in contact with high-temperature areas, such as feed pipes, exhaust pipes, and plasma torches, affecting the service life and stability of the equipment.
[0003] Most existing plasma melting equipment uses a single-layer water-cooled jacket to cool the feed pipe, exhaust pipe, and plasma torch. However, the single-layer water-cooled jacket design may have problems such as uneven internal water flow, incomplete contact area, and short water flow residence time, which will affect the cooling effect on the feed pipe, exhaust pipe, and plasma torch. Utility Model Content
[0004] To address the shortcomings of existing single-layer water-cooled jacket designs, which may result in uneven internal water flow, incomplete contact area, and short water residence time, thus affecting the cooling effect on the feed pipe, exhaust pipe, and plasma torch, this invention provides a multi-component circulating water-cooled plasma melting device.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses a multi-component circulating water-cooled plasma melting device, including a plasma melting furnace. The top of the plasma melting furnace is fixedly installed with a feed pipe and a flue pipe connected to the plasma melting furnace. An installation port is provided on one side of the outer wall of the plasma melting furnace, and a plasma torch is installed in the installation port. A furnace-type composite cooling component is provided on the outside of the feed pipe, the flue pipe, and the plasma torch.
[0007] The furnace-type composite cooling assembly includes an outer shell, with a water inlet pipe fixedly connected to the top of one side of the outer wall of the outer shell. An outer water-cooling channel connected to the water inlet pipe and an inner water-cooling channel connected to the outer water-cooling channel are opened inside the outer shell. A drain pipe connected to the inner water-cooling channel is fixedly connected to the top of the outer shell on the side away from the water inlet pipe.
[0008] As a preferred embodiment of this invention, the inner walls of the outer and inner water-cooling channels are provided with a silicon carbide coating.
[0009] As a preferred embodiment of this utility model, the ends of the water inlet pipe and the drain pipe furthest from the outer casing are both fixedly connected with quick-install sealing flanges.
[0010] As a preferred embodiment of this utility model, a supporting sealing ring is fixedly connected to one side of the outer wall of the drain pipe located within the outer water-cooling channel.
[0011] As a preferred embodiment of this utility model, the inner wall of the inner water-cooling channel is fixedly connected with a first baffle ring and a second baffle ring that are vertically and evenly distributed in an alternating pattern. The opening directions of the first baffle ring and the second baffle ring are opposite. The cross-sectional width of the outer water-cooling channel is greater than that of the inner water-cooling channel.
[0012] As a preferred embodiment of this utility model, reinforcing blocks are fixedly connected between the outer wall of the outer shell and the water inlet pipe and the drain pipe.
[0013] The beneficial effects of this utility model are:
[0014] This multi-component circulating water-cooled plasma melting device, through the cooperation of a plasma melting furnace, feed pipe, exhaust pipe, installation port, plasma torch, and furnace-type composite cooling components, allows the coolant to enter the inner water-cooling channel after passing through the outer water-cooling channel via the inlet pipe. Since the cross-sectional width of the inner water-cooling channel is smaller than that of the outer water-cooling channel, the coolant's flow rate increases upon entering the inner water-cooling channel. During this process, the coolant fully contacts both the outer and inner water-cooling channels, and deflection occurs to increase the overall heat exchange time between the coolant and both the inner and outer water-cooling channels, thereby effectively improving the overall cooling effect of the device.
[0015] This multi-component circulating water-cooled plasma melting device, through the setting of the first and second baffle rings, increases the baffle process during the flow of cooling water, increases the disturbance of the coolant, improves the uniformity and stability of the cooling effect, and avoids the occurrence of local overheating. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of a multi-component circulating water-cooled plasma melting device according to this utility model;
[0018] Figure 2 This is a side sectional view of the exhaust pipe of a multi-component circulating water-cooled plasma melting device according to this utility model.
[0019] Figure 3 This is a three-dimensional structural diagram of the first and second baffle cut rings of a multi-component circulating water-cooled plasma melting device according to this utility model.
[0020] In the diagram: 1. Plasma melting furnace; 2. Feed pipe; 3. Exhaust pipe; 4. Mounting port; 5. Plasma torch; 6. Furnace-type composite cooling assembly; 61. Outer shell; 62. Water inlet pipe; 63. Outer water cooling channel; 64. Inner water cooling channel; 65. Drain pipe; 7. Silicon carbide coating; 8. Quick-connect sealing flange; 9. Support sealing ring; 10. First baffle cut ring; 11. Second baffle cut ring; 12. Reinforcing block. Detailed Implementation
[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0022] Example: Refer to Figure 1 This utility model discloses a multi-component circulating water-cooled plasma melting device, including a plasma melting furnace 1. The top of the plasma melting furnace 1 is fixedly installed with a feed pipe 2 and a smoke exhaust pipe 3 connected to the plasma melting furnace 1. An installation port 4 is provided on one side of the outer wall of the plasma melting furnace 1. A plasma torch 5 is provided in the installation port 4. A furnace-type composite cooling component 6 is provided on the outside of the feed pipe 2, the smoke exhaust pipe 3 and the plasma torch 5.
[0023] When in use, the plasma torch 5 is inserted into the installation port 4. The waste to be melted enters the plasma melting furnace 1 through the feed pipe 2. Then, the plasma torch 5 is turned on and generates a high-temperature plasma arc to melt the waste. The high-temperature flue gas generated during the melting process is discharged through the exhaust port 3. At the same time, the furnace-type composite cooling component 6 cools the feed port 2, the exhaust pipe 3 and the plasma torch 5, thereby minimizing the risk of damage to the feed port 2, the exhaust pipe 3 and the plasma torch 5 due to high temperature.
[0024] Reference Figure 1 , Figure 2 and Figure 3The furnace-type composite cooling assembly 6 includes a shell 61. A water inlet pipe 62 is fixedly connected to the top of one side of the outer wall of the shell 61. An outer water cooling channel 63 connected to the water inlet pipe 62 and an inner water cooling channel 64 connected to the outer water cooling channel 63 are opened inside the shell 61. A first baffle ring 10 and a second baffle ring 11 are fixedly connected to the inner wall of the inner water cooling channel 64. The opening directions of the first baffle ring 10 and the second baffle ring 11 are opposite. The cross-sectional width of the outer water cooling channel 63 is greater than the cross-sectional width of the inner water cooling channel 64.
[0025] Before use, the external pipeline should be fixedly installed to the inlet pipe 62 and the drain pipe 65 through the quick-connect flange 8. When in use, the coolant enters the inner water cooling channel 64 after passing through the outer water cooling channel 63 through the inlet pipe 62. When the coolant is in the inner water cooling channel 64, the flow rate of the coolant increases because the cross-sectional width of the inner water cooling channel 64 is smaller than that of the outer water cooling channel 63, thereby maximizing the heat exchange and cooling efficiency. At the same time, the first baffle ring 11 and the second baffle ring 12 can cause the coolant in the inner water cooling channel 64 to be deflected, prolonging the contact time between the coolant and the plasma torch 5, the feed pipe 2 and the exhaust pipe 3, thereby further improving the heat exchange and cooling effect.
[0026] A drain pipe 65, which communicates with the inner water-cooling channel 64, is fixedly connected to the top of the outer shell 61 on the side away from the water inlet pipe 62. A support sealing ring 9 is fixedly connected to the side of the outer wall of the drain pipe 65 located inside the outer water-cooling channel 63. The inner walls of the outer water-cooling channel 63 and the inner water-cooling channel 64 are provided with a silicon carbide coating 7. A quick-install sealing flange 8 is fixedly connected to the end of the water inlet pipe 62 and the drain pipe 65 away from the outer shell 61. A reinforcing block 12 is fixedly connected between the outer wall of the outer shell 61 and the water inlet pipe 62 and the drain pipe 65. The reinforcing block 12 can enhance the mechanical strength of the connection between the water inlet pipe 62 and the drain pipe 65 and the outer shell 61 as much as possible, avoid the connection from breaking due to water flow impact and vibration, and improve the reliability of the device.
[0027] The working principle of this utility model is as follows:
[0028] When in use, the external pipeline should be fixedly installed to the water inlet pipe 62 and the drain pipe 65 through the quick-install flange 8 before use. When in use, the plasma torch 5 is inserted into the installation port 4. The molten waste enters the plasma melting furnace 1 through the feed pipe 2. Then the plasma torch 5 is turned on and generates a high-temperature plasma arc to melt the waste. The high-temperature flue gas generated during the melting process is discharged through the exhaust port 3.
[0029] When in use, the coolant enters the inner water cooling channel 64 after passing through the outer water cooling channel 63 via the inlet pipe 62. When the coolant is in the inner water cooling channel 64, the flow rate of the coolant increases because the cross-sectional width of the inner water cooling channel 64 is smaller than that of the outer water cooling channel 63. This maximizes the heat exchange and cooling efficiency, and the coolant is finally discharged from the drain pipe 65.
[0030] During cooling, the first baffle ring 11 and the second baffle ring 12 can cause the coolant in the inner water-cooling channel 64 to be deflected, prolonging the contact time between the coolant and the plasma torch 5, the feed pipe 2 and the exhaust pipe 3, thereby further improving the heat exchange and cooling effect.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-component circulating water-cooled plasma melting device, comprising a plasma melting furnace (1), characterized in that, The top of the plasma melting furnace (1) is fixedly installed with a feed pipe (2) and a smoke exhaust pipe (3) connected to the plasma melting furnace (1). An installation port (4) is provided on one side of the outer wall of the plasma melting furnace (1). A plasma torch (5) is provided in the installation port (4). A furnace-type composite cooling assembly (6) is provided on the outside of the feed pipe (2), the smoke exhaust pipe (3) and the plasma torch (5). The furnace-type composite cooling assembly (6) includes a shell (61), with a water inlet pipe (62) fixedly connected to the top of one side of the outer wall of the shell (61). The shell (61) has an outer water cooling channel (63) connected to the water inlet pipe (62) and an inner water cooling channel (64) connected to the outer water cooling channel (63). The top of the shell (61) on the side away from the water inlet pipe (62) is fixedly connected to a drain pipe (65) connected to the inner water cooling channel (64).
2. The multi-component circulating water-cooled plasma melting device according to claim 1, characterized in that, The inner walls of the outer water cooling channel (63) and the inner water cooling channel (64) are provided with a silicon carbide coating (7).
3. The multi-component circulating water-cooled plasma melting device according to claim 1, characterized in that, The inlet pipe (62) and the outlet pipe (65) are both fixedly connected to a quick-install sealing flange (8) at the end away from the outer casing (61).
4. The multi-component circulating water-cooled plasma melting device according to claim 1, characterized in that, The outer wall of the drain pipe (65) is fixedly connected to a support sealing ring (9) on one side inside the outer water cooling channel (63).
5. The multi-component circulating water-cooled plasma melting device according to claim 1, characterized in that, The inner wall of the inner water cooling channel (64) is fixedly connected with a first baffle ring (10) and a second baffle ring (11) that are vertically and evenly distributed. The opening directions of the first baffle ring (10) and the second baffle ring (11) are opposite. The cross-sectional width of the outer water cooling channel (63) is greater than that of the inner water cooling channel (64).
6. The multi-component circulating water-cooled plasma melting device according to claim 1, characterized in that, The outer wall of the outer shell (61) is fixedly connected to the water inlet pipe (62) and the drain pipe (65) with reinforcing blocks (12).