Tail gas dust collecting structure of vacuum degassing furnace
By designing the dust collection structure of the vacuum degass furnace exhaust, the dust sinking and fallback structures are used to achieve dust separation, which solves the problem of improper dust treatment in the vacuum degass furnace exhaust, and achieves environmental protection and cost savings.
Patent Information
- Application Number
- CN202422855135.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the prior art, the dust in the exhaust gas of the vacuum degassing furnace is improperly treated, which leads to the pipe line being easily blocked and difficult to replace, which is expensive and direct emissions to pollute the environment.
A vacuum degassing furnace exhaust dust collection structure is designed, including dust sinking structure and dust fallback structure. Through the vertically arranged dust sinking structure and the spiral rising dust fallback structure, the initial and secondary separation of dust is achieved to prevent direct exhaust emissions.
Effectively separate dust in exhaust gas, prevent environmental pollution, reduce treatment costs, and realize the reuse of dust.
Smart Images
Figure CN223112575U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tail gas treatment of vacuum degassing furnaces, and particularly relates to a dust collection structure for the tail gas of a vacuum degassing furnace. Background Technique
[0002] As an important heat treatment equipment, the vacuum degassing furnace has a wide range of applications in materials science and engineering. The vacuum degassing furnace mainly heats and processes materials in a vacuum environment. By using a vacuum pump to extract the air and other gases in the furnace, a low-pressure environment is formed. The materials in the furnace are heated in a vacuum environment, realizing the heating treatment of materials in an oxygen-free environment. The vacuum degassing furnace will generate tail gas containing combustible components during the production process. If these tail gases are not properly treated, it may cause safety accidents and environmental pollution. Therefore, it is crucial to adopt scientific and effective treatment methods. A large amount of dust is contained in the tail gas of the vacuum degassing furnace. If these tail gases are directly discharged without treatment, it will cause environmental pollution. Therefore, it is crucial to treat the tail gas of the vacuum degassing furnace before discharging.
[0003] At present, generally, an ordinary metal filter element is used at the end of the vacuum degassing furnace to filter the dust in the tail gas. Due to the large amount of dust generated during the degassing process of the vacuum degassing furnace, the pipeline is relatively easy to be blocked, and it is more difficult to replace, and the cost is relatively high. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide a dust collection structure for the tail gas of a vacuum degassing furnace in view of the deficiencies of the existing technology. The utility model can treat the dust in the exhaust gas of the vacuum degassing furnace, prevent the tail gas containing dust from being directly discharged to pollute the environment, and can be reused, effectively saving the cost of tail gas treatment.
[0005] The solution is realized by the following technical measures: A dust collection structure for the tail gas of a vacuum degassing furnace, which includes a dust settling structure and a dust falling-back structure. The dust settling structure is arranged vertically. The upper end of the dust settling structure is a tail gas inlet, and the lower end is a dust discharge port. The inlet end of the dust falling-back structure is communicated with the middle part or a position below the middle part of the dust settling structure, and the outlet end of the dust falling-back structure is higher than the inlet end.
[0006] Preferably, the dust settling structure includes a vertical pipeline, and a sealing plug is detachably and fixedly connected to the lower end of the vertical pipeline.
[0007] Preferably, a threaded connection end is arranged at the lower end of the vertical pipeline, and the sealing plug is threadedly connected to the threaded connection end.
[0008] Preferably, a blocking head is connected to the bottom of the inner cavity of the sealing plug by a snap ring for limiting.
[0009] Preferably, the upper end of the vertical pipeline is in an L-shaped structure, and the end of the L-shaped structure is a threaded connection end.
[0010] Preferably, the dust falling-back structure includes a spiral pipeline that spirally ascends and an upper connecting pipe and a lower connecting pipe connected to both ends of the spiral pipeline.
[0011] Preferably, the lower connecting pipe is inclined downward from top to bottom, and the inlet end of the lower connecting pipe communicates with the vertical pipeline.
[0012] Preferably, the upper connecting pipe is inclined downward from top to bottom, and the outlet end of the upper connecting pipe is a threaded connection end.
[0013] Advantages of the present utility model:
[0014] 1. In the present utility model, by providing a dust settling structure, the gas with dust after degassing passes through the dust settling structure. Due to the weight of the dust, the dust will fall to the bottom of the dust settling structure, and the dust settling structure is relatively deep, so the fallen dust is not easily carried out, realizing the preliminary separation of the dust. The dust at the bottom of the dust settling structure can be collected and cleaned regularly to prevent the tail gas containing dust from being directly discharged to the outside to pollute the environment. The operation is convenient and can be reused, effectively saving the cost of tail gas treatment.
[0015] 2. In the present utility model, by providing a dust falling-back structure, the spirally ascending spiral pipeline makes it difficult for the dust to be carried by the gas and flow to the upper connecting pipe at the rear section. The dust will fall back into the vertical pipeline through the inclined lower connecting pipe and deposit at the bottom of the vertical pipeline, realizing the secondary separation of the dust and further ensuring the collection and treatment effect of the dust.
[0016] Thus, compared with the prior art, the present utility model has substantial features and progress, and the beneficial effects of its implementation are also obvious. Description of the Drawings
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the specific embodiment of the present utility model.
[0018] Figure 2 It is a front-view structural schematic diagram of the specific embodiment of the present utility model.
[0019] Figure 3 It is an exploded structural schematic diagram of the specific embodiment of the present utility model.
[0020] Figure 4 It is a schematic diagram of the tail gas treatment process in the specific embodiment of the present utility model.
[0021] Figure 5 It is a schematic diagram of the dust accumulating at the bottom of the vertical pipeline in the specific embodiment of the present utility model.
[0022] Figure 6 This is a schematic diagram of dust collection and cleaning in the specific implementation manner of the present utility model.
[0023] In the figure, 1 is a dust settling structure, 2 is a dust falling-back structure, 3 is a vertical pipeline, 4 is a sealing plug, 5 is a threaded connection end, 6 is a threaded connection end, 7 is a spiral pipeline, 8 is a lower connecting pipe, 9 is an upper connecting pipe, 10 is a threaded connection end, 11 is a gasket, 12 is a plugging head, and 13 is a circlip. Specific implementation manner
[0024] To clearly illustrate the technical features of this solution, the following will expound on this solution through specific implementation manners and in conjunction with its attached drawings.
[0025] A dust collection structure for the tail gas of a vacuum degassing furnace includes a dust settling structure 1 and a dust falling-back structure 2. The dust settling structure 1 is arranged vertically. The upper end of the dust settling structure 1 is a tail gas inlet, and the lower end is a dust discharge port. The inlet end of the dust falling-back structure 2 is communicated with the middle or a position below the middle of the dust settling structure 1, and the outlet end of the dust falling-back structure 2 is higher than the inlet end.
[0026] The dust settling structure 1 includes a vertical pipeline 3. The upper end of the vertical pipeline 3 is in an L-shaped structure, and the end of the L-shaped structure is a threaded connection end 6. The vertical pipeline 3 is connected to the tail gas end of the vacuum degassing furnace through the threaded connection end 6. The lower end of the vertical pipeline 3 is detachably and fixedly connected with a sealing plug 4. The specific connection structure between the sealing plug 4 and the vertical pipeline 3 is as follows: a threaded connection end 5 is arranged at the lower end of the vertical pipeline 3, and the sealing plug 4 is threadedly connected with the threaded connection end 5. A plugging head 12 is connected to the bottom of the inner cavity of the sealing plug 4 through a circlip 13 in a limiting manner, and a gasket 11 is installed between the sealing plug 4 and the threaded connection end 5. Through this structural form, the detachable connection of the sealing plug 4 on the vertical pipeline 3 is realized. The sealing plug 4 can be conveniently removed to collect and clean the dust accumulated in the lower part of the vertical pipeline 3. After the dust collection and cleaning are completed, the sealing plug 4 can be screwed back into the vertical pipeline 3. The operation is convenient and can be reused, effectively saving the tail gas treatment cost.
[0027] After adopting the dust settling structure 1, the dust-laden tail gas discharged from the vacuum degassing furnace enters the vertical pipeline 3. Due to the weight of the dust, the dust will settle and accumulate at the bottom of the vertical pipeline 3. Moreover, the vertical pipeline 3 is relatively deep, and the fallen dust is not easily carried out, realizing the preliminary separation of the dust. The sealing plug 4 can be regularly opened to discharge the dust deposited at the bottom of the vertical pipeline 3.
[0028] The dust falling-back structure 2 includes a spiral pipe 7 that spirally ascends, and an upper connecting pipe 9 and a lower connecting pipe 8 connected to both ends of the spiral pipe 7. The lower connecting pipe 8 is arranged obliquely downward from top to bottom, and the inlet end of the lower connecting pipe 8 communicates with the vertical pipe 3. The upper connecting pipe 9 is arranged obliquely downward from top to bottom, and the outlet end of the upper connecting pipe 9 is a threaded connection end 10.
[0029] After adopting the dust falling-back structure 2, the spirally ascending spiral pipe 7 makes it difficult for dust to be carried by the gas and flow to the subsequent upper connecting pipe 9. The dust will adhere to the inner walls of the spiral pipe 7, the upper connecting pipe 9 and the lower connecting pipe 8 and slowly slide down. Finally, the dust falls back into the vertical pipe 3 through the obliquely arranged lower connecting pipe 8 and is deposited at the bottom of the vertical pipe 3, realizing the secondary separation of the dust and further ensuring the treatment effect of the dust in the tail gas.
[0030] The technical features not described in the present utility model can be realized by the prior art and will not be elaborated herein. The present utility model is not limited to the above specific embodiments. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present utility model shall also fall within the protection scope of the present utility model.
Claims
1. A tail gas dust collection structure for a vacuum degassing furnace, characterized in that: It includes a dust sedimentation structure and a dust fallback structure. The dust sedimentation structure is arranged vertically. The upper end of the dust sedimentation structure is the tail gas inlet, and the lower end is the dust discharge port. The inlet end of the dust fallback structure is communicated with the middle part or a position below the middle part of the dust sedimentation structure, and the outlet end of the dust fallback structure is higher than the inlet end.
2. The tail gas dust collection structure of the vacuum degassing furnace according to claim 1, characterized in that: The dust sedimentation structure includes a vertical pipeline, and a sealing plug is detachably and fixedly connected to the lower end of the vertical pipeline.
3. The tail gas dust collection structure of the vacuum degassing furnace according to claim 2, characterized in that: A threaded connection end is arranged at the lower end of the vertical pipeline, and the sealing plug is threadedly connected to the threaded connection end.
4. The vacuum degassing furnace tail gas dust collection structure according to claim 3, characterized in that: A plug is connected to the bottom of the inner cavity of the sealing plug in a limiting manner through a snap spring.
5. The dust collection structure for the tail gas of the vacuum degassing furnace according to claim 4, characterized in that: The upper end of the vertical pipeline is in an L-shaped structure, and the end of the L-shaped structure is a threaded connection end.
6. The dust collection structure for the tail gas of the vacuum degassing furnace according to any one of claims 2-5, characterized in that: The dust fallback structure includes a spiral pipeline that spirally ascends and an upper connecting pipe and a lower connecting pipe connected to both ends of the spiral pipeline.
7. The tail gas dust collection structure of the vacuum degassing furnace according to claim 6, characterized in that: The lower connecting pipe is arranged obliquely downward from top to bottom, and the inlet end of the lower connecting pipe is communicated with the vertical pipeline.
8. The dust collection structure for the tail gas of the vacuum degassing furnace according to claim 7, characterized in that: The upper connecting pipe is arranged obliquely downward from top to bottom, and the outlet end of the upper connecting pipe is a threaded connection end.