Filtering device and gas purifiable circulating rotary electrode powdering device

Abstract

The application relates to a filtering device, which comprises a filtering device, the filtering device comprising a first filtering chamber, a second filtering chamber and a third filtering chamber, the first filtering chamber being located directly above the second filtering chamber, the third filtering chamber being located directly below the second filtering chamber, the first filtering chamber being separated from the second filtering chamber through a first isolation valve, the second filtering chamber being separated from the third filtering chamber through a second isolation valve, a plurality of filtering units being stored in the first filtering chamber, and the filtering units in the first filtering chamber being moved into the second filtering chamber through the opening of the first isolation valve. The application also relates to a gas-purifiable circulating rotary electrode powder production device, which comprises the above filtering device. The filtering units can be replaced in production, the filtering units can effectively filter particles in the gas in the production process, and the possibility that the plasma arc flame is unstable and the powder quality is poor due to excessive black powder can be avoided.

Description

Technical Field

[0001] This application relates to the field of rotating electrode powder making equipment technology, and in particular to a gas purification and circulation rotating electrode powder making equipment with filtration device. Background Technology

[0002] During the powder production process of a plasma rotating electrode equipment, due to the close proximity of the rod to the plasma arc and the high temperature of the plasma arc, some volatile elements are prone to volatilization, generating black powder. This black powder gradually accumulates as production progresses. While existing filter cotton can filter out some of it, its filtration efficiency gradually deteriorates over time. The gradual accumulation of black powder affects the entire gas circulation. The filter at the plasma torch inlet also experiences a decrease in permeability as the black powder increases, leading to fluctuations in the plasma torch gas flow rate and instability in the plasma arc, ultimately impacting powder quality.

[0003] Currently, the filter equipment in plasma rotating electrode equipment is non-replaceable and lacks a purification device. While it has little impact on short-term production, the powder quality gradually deteriorates as production continues. This is because the filtration effect of the filter equipment gradually decreases during long-term continuous production, and the air permeability also decreases. Consequently, the gas flow rate in the plasma torch flame decreases, and the gas distribution becomes uneven, causing instability in the plasma arc flame and ultimately resulting in poor powder consistency.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0005] This application provides a gas purification circulating rotary electrode powder making device to solve the above-mentioned problems.

[0006] In a first aspect, this application provides a gas purification circulating rotary electrode powder making device, including a filtration device. The filtration device includes a first filtration chamber, a second filtration chamber, and a third filtration chamber. The first filtration chamber is located directly above the second filtration chamber, and the third filtration chamber is located directly below the second filtration chamber. The first filtration chamber and the second filtration chamber are separated by a first isolation valve, and the second filtration chamber and the third filtration chamber are separated by a second isolation valve. The first filtration chamber stores multiple filtration units. By opening the first isolation valve, the filtration units in the first filtration chamber move to the second filtration chamber, where they perform filtration. By opening the second isolation valve, the filtration units in the second filtration chamber move to the third filtration chamber for recycling.

[0007] Optionally, it also includes a first compressor and a first fan, wherein the first compressor is connected to one end of the first fan and one end of the second filter chamber.

[0008] Optionally, it also includes activated carbon and a first cyclone classifier, wherein the activated carbon is connected to the other end of the first blower and one end of the first cyclone classifier, and the other end of the first cyclone classifier is connected to the other end of the second filter chamber.

[0009] Secondly, this application provides a gas-purifiable circulating rotary electrode powder-making device, characterized in that: it includes the above-mentioned filtration device, and further includes a second fan and a second compressor, wherein the second fan is connected to one end of the filtration device and one end of the second compressor respectively.

[0010] Optionally, it also includes a plasma torch, with the other end of the second compressor connected to one end of the plasma torch.

[0011] Optionally, a gas flow meter is provided at the plasma torch.

[0012] Optionally, it also includes an atomization chamber, with one end of the plasma torch connected to one end of the atomization chamber.

[0013] Optionally, it also includes a second cyclone classifier, the two ends of which are respectively connected to the other end of the atomizing chamber and the other end of the filtering device.

[0014] Optionally, the two ends of the second filtration chamber are connected to the second fan and the second cyclone classifier, respectively.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art:

[0016] The embodiments of this application allow for the replacement of the filter unit during production, ensuring effective filtration of particles in the gas during the production process and avoiding the possibility of unstable plasma arc flame and deterioration of powder quality due to excessive black powder. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a simplified structural diagram of a filtration device provided in an embodiment of this application.

[0021] Figure 2 This is a simplified structural diagram of a filtration device and filtration unit provided in the embodiments of this application before production.

[0022] Figure 3 This is a simplified structural diagram of a filtration device and filtration unit after production, provided in an embodiment of this application.

[0023] Figure 4 A simplified structural diagram of a gas-purifiable circulating rotary electrode powder-making device provided in an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Filtration equipment; 2. Filtration device; 3. First compressor; 4. First fan; 5. Activated carbon; 6. First cyclone classifier; 7. First filtration chamber; 8. Second filtration chamber; 9. Third filtration chamber; 10. First isolation valve; 11. Second isolation valve; 12. Filtration unit; 13. Second fan; 14. Second compressor; 15. Plasma torch; 16. Atomization chamber; 17. Second cyclone classifier. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0028] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0029] Figure 1-3 A filtration device 1 provided in this application embodiment includes a filter element 2, a first compressor 3, a first fan 4, activated carbon 5, and a first cyclone classifier 6. The first compressor 3 is connected to one end of the first fan 4 and one end of the filter element 2. The activated carbon 5 is connected to the other end of the first fan 4 and one end of the first cyclone classifier 6. The other end of the first cyclone classifier 6 is connected to the other end of the filter element 2. During production breaks, when the filtration device 1 is purged, the first fan 4 and the first compressor 3 are turned on to purge the filter element 2.

[0030] Furthermore, the filtration device 2 includes a first filtration chamber 7, a second filtration chamber 8, and a third filtration chamber 9. The first filtration chamber 7 is located directly above the second filtration chamber 8, and the third filtration chamber 9 is located directly below the second filtration chamber 8. The first filtration chamber 7 and the second filtration chamber 8 are separated by a first isolation valve 10, and the second filtration chamber 8 and the third filtration chamber 9 are separated by a second isolation valve 11. The first filtration chamber 7 stores a plurality of filtration units 12. By opening the first isolation valve 10, the filtration units 12 in the first filtration chamber 7 move to the second filtration chamber 8, where they perform filtration. By opening the second isolation valve 11, the filtration units 12 in the second filtration chamber 8 move to the third filtration chamber 9 for recycling. The operator can store multiple filter units 12 in the first filter chamber 7 and place single-use filter units 12 in the second filter chamber 8. When the filter unit 12 in the second filter chamber 8 needs to be replaced, it is moved to the third filter chamber 9 by opening the second isolation valve 11. Then, the filter unit 12 pre-stored in the first filter chamber 7 is moved to the second filter chamber 8 by opening the first isolation valve 10. This allows for the replacement of filter units 12 during the production process, avoiding the possibility of excessive black powder due to the inconvenience of replacing filter units 12, which could lead to unstable plasma arc flame and poor powder quality. Preferably, the filter unit 12 is composed of a filter screen and filter cotton, which can effectively filter out particles of various sizes in the gas. The first fan 4 and the first compressor 3 can also be used as a backflushing system to clean the filter screen, which helps to ensure that the air permeability meets the process requirements.

[0031] Please see Figure 4 This application also provides a gas-purifying circulating rotary electrode powder-making device, including the aforementioned filter device 1, and further including a second fan 13, a second compressor 14, a plasma torch 15, an atomizing chamber 16, and a second cyclone classifier 17. The second fan 13 is connected to one end of the filter device 1 and one end of the second compressor 14, the other end of the second compressor 14 is connected to one end of the plasma torch 15, the other end of the plasma torch 15 is connected to one end of the atomizing chamber 16, and the two ends of the second cyclone classifier 17 are connected to the other ends of the atomizing chamber 16 and the other end of the filter device 1, respectively. Specifically, the second fan 13 and the second cyclone classifier 17 are respectively connected to the two ends of the second filter chamber 8 to achieve communication with the filter device 1.

[0032] A gas flow meter (not shown) is installed at the plasma torch 15. During production, if the gas flow meter indicates that the gas flow rate through the plasma torch 15 is lower than the first preset value, it indicates that the filter screen is clogged. After the current bar production is completed, the second compressor 14 and the second fan 13 are turned off, and the first compressor 3 and the first fan 4 are turned on. The first fan 4 and the first compressor 3 perform a backflushing operation on the filter screen, that is, the airflow direction is opposite to that of the second fan 13 and the second compressor 14, blowing the particles off the filter screen to achieve cleaning. After turning off the first compressor 3 and the first fan 4, and turning on the second compressor 14 and the second fan 13, production can continue. When the gas flow meter indicates that it is lower than the second preset value, the operator can replace the filter unit 12. The operator first opens the second isolation valve 11, puts the used filter unit 12 into the third filter chamber 9, and then closes the second isolation valve 11. Then, the operator opens the first isolation valve 10, puts the filter unit 12 pre-stored in the first filter chamber 7 into the second filter chamber 8, and closes the first isolation valve 10 to ensure the filtration effect. Specifically, the first preset value can be 150L / min, the second preset value can be 120L / min, and so on. The specific value can be set according to the actual situation.

[0033] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0039] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0040] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A filtration device, characterized in that: The device includes a filtration unit comprising a first filtration chamber, a second filtration chamber, and a third filtration chamber. The first filtration chamber is located directly above the second filtration chamber, and the third filtration chamber is located directly below the second filtration chamber. The first filtration chamber and the second filtration chamber are separated by a first isolation valve, and the second filtration chamber and the third filtration chamber are separated by a second isolation valve. The first filtration chamber stores multiple filtration units. The filtration units in the first filtration chamber move to the second filtration chamber by opening the first isolation valve, where they perform filtration. The filtration units in the second filtration chamber move to the third filtration chamber for recycling by opening the second isolation valve.

2. The filtration device according to claim 1, characterized in that: It also includes a first compressor and a first fan, wherein the first compressor is connected to one end of the first fan and one end of the second filter chamber.

3. The filtration device according to claim 2, characterized in that: It also includes activated carbon and a first cyclone classifier, wherein the activated carbon is connected to the other end of the first blower and one end of the first cyclone classifier, and the other end of the first cyclone classifier is connected to the other end of the second filter chamber.

4. A gas-purifying circulating rotary electrode powder-making device, characterized in that: The filtration device as described in any one of claims 1-3 further includes a second fan and a second compressor, wherein the second fan is connected to one end of the filtration device and one end of the second compressor, respectively.

5. The gas-purifying circulating rotary electrode powder-making equipment according to claim 4, characterized in that: It also includes a plasma torch, with the other end of the second compressor connected to one end of the plasma torch.

6. The gas-purifying circulating rotary electrode powder-making equipment according to claim 5, characterized in that: A gas flow meter is installed at the plasma torch.

7. The gas-purifying circulating rotary electrode powder-making equipment according to claim 5, characterized in that: It also includes an atomization chamber, with one end of the plasma torch connected to one end of the atomization chamber.

8. The gas-purifying circulating rotary electrode powder-making equipment according to claim 7, characterized in that: It also includes a second cyclone classifier, the two ends of which are respectively connected to the other end of the atomization chamber and the other end of the filtration device.

9. The gas-purifying circulating rotary electrode powder-making equipment according to claim 8, characterized in that: The two ends of the second filtration chamber are connected to the second fan and the second cyclone classifier, respectively.

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