Filtering device for wrapping head

Abstract

The utility model relates to the technical field of high-voltage cable manufacturing, and provides a filter device for a lapping head, which is used for filtering conductive carbon black which is generated in the lapping process and is dispersed in air, a protective cover covers the outer side of the lapping head, the filter device comprises a main body, a gas circulation channel is arranged in the main body, one end of the channel is communicated with the protective cover, and the other end of the channel is communicated with the protective cover. The other end is communicated with the external environment; the air exhaust part is arranged on the main body; the filtering piece is arranged in the channel; the protective cover and the channel are subjected to air exhaust through the air exhaust part, negative pressure is formed in the protective cover and the channel, air containing conductive carbon black in the protective cover is sucked into the channel, the filter part filters the air flowing into the channel, and the conductive carbon black carried in the air is effectively intercepted and attached to the filter part. And the filtered clean air flows into the external environment along the channel, so that the accumulation of the conductive carbon black in the protective cover is reduced, the working environment is obviously improved, and the harm to the body health of workers is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high -voltage cable manufacturing technical field, concretely relates to a filter device for winding head. BACKGROUND

[0002] In the manufacture of 66kV and above crosslinked polyethylene insulated power cable, it is usually necessary to wrap buffer tape or buffer water-blocking tape outside the insulation shield as a buffer layer of the insulation core to ensure good electrical contact between the insulation semiconductive shield and the metal shield. Since the buffer tape contains a large amount of conductive carbon black, when the buffer tape rotates at high speed on the wrapping head in the wrapping buffer tape process of high-voltage cable production, a large amount of conductive carbon black dust will fall off and scatter into the air. This not only affects the on-site hygiene, but also poses a threat to the health of the operators. Even if a protective cover is installed on the wrapping head, conductive carbon black dust may still escape through the gaps. In addition, when the wrapping material is exhausted and needs to be replaced, the worker has to open the protective cover, at which time a large amount of conductive carbon black dust accumulated inside the protective cover can easily be inhaled into the human body, thereby endangering health. SUMMARY

[0003] To solve the above problems in the prior art, the utility model provides a filter device for a wrapping head, which filters the conductive carbon black dust scattered in the air during the wrapping process by means of an air extraction member that extracts air from inside the protective cover and the channel, thereby forming a negative pressure inside the protective cover and the channel, prompting clean air from outside to flow into the protective cover through the gaps in the protective cover, and carrying the conductive carbon black dust in the protective cover into the channel, and a filter member that filters the gas flowing into the channel, so that the conductive carbon black dust carried in the gas is intercepted and adheres to the filter member, and the clean air after filtration flows into the external environment along the channel.

[0004] The utility model solves the technical problems by adopting the following technical scheme: a filter device for a wrapping head is provided, which is used to filter the conductive carbon black dust scattered in the air during the wrapping process, the outer side of the wrapping head is covered with a protective cover, and the filter device comprises:

[0005] A main body is provided with a channel for gas flow, one end of the channel is in communication with the protective cover, and the other end is in communication with the external environment;

[0006] An air extraction member is arranged on the main body and used to extract air from inside the protective cover and the channel;

[0007] The conductive carbon black dust scattered in the air can flow into the channel from the protective cover along with the air due to the air extraction of the air extraction member from inside the protective cover and the channel;

[0008] A filter member is arranged in the channel and used to filter out the conductive carbon black dust in the air flowing into the channel.

[0009] In the filter device for around the head, the filter piece is detachably connected in the channel.

[0010] In the filter device for around the head, at least two filter pieces are arranged in the channel.

[0011] In the filter device for around the head, the filter pieces are arranged along the gas flow path in the channel in sequence.

[0012] In the filter device for around the head, the filter piece is a filter screen with uniform pore size.

[0013] In the filter device for around the head, the pore size of the filter screens arranged along the gas flow path in sequence decreases step by step.

[0014] In the filter device for around the head, the material of the filter screen is 316 stainless steel.

[0015] In the filter device for around the head, the channel has an inlet communicating with the protective cover and an outlet communicating with the external environment, the inlet is used for the gas carrying the conductive carbon black dust to flow into the channel, and the outlet is used for the filtered gas to flow into the external environment.

[0016] In the filter device for around the head, the air extractor is an air blower, which is located on the side of the channel close to the outlet.

[0017] In the filter device for around the head, the gas channel has a first part, a second part and a third part, one end of the first part communicates with the protective cover and is perpendicular to the side wall of the protective cover, the second part extends upward along the direction perpendicular to the first part from the other end of the first part, the end of the first part and the starting end of the second part are smoothly connected through a first bending part, the third part extends along the direction parallel to the first part from the end of the second part through a second bending part, the filter piece is arranged in the second part, and the air extractor is located in the third part.

[0018] Compared with the prior art, the filter device for around the head has the following beneficial effects:

[0019] (1) By the suction member to the protective cover and the passage in the suction to form a negative pressure, to promote the protective cover containing conductive carbon black dust in the air flow into the passage, and through the filter element in the passage filter, the gas carrying conductive carbon black dust is effectively trapped and attached to the filter element, clean air after filtration along the passage into the environment, which not only significantly improves the working environment, but also reduces the harm to the health of workers;

[0020] (2) The passage is provided with at least two filter elements along the gas flow path, the filter elements are filter screens with uniform pore size, and the pore size diameter decreases step by step, which can effectively remove the conductive carbon black dust and other small particulate matters carried in the air, and ensure that the filtration process is efficient and reliable;

[0021] (3) The passage is divided into first, second and third parts, the air enters the first part from the protective cover, then passes through the filter element in the second part for filtration, and finally the purified air is extracted by the suction member in the third part, thereby realizing efficient air filtration and discharge. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present scheme;

[0023] Figure 2 is Figure 1 a partial structural schematic diagram in

[0024] In the figure, 1 is a protective cover; 2 is a main body; 3 is a passage; 4 is a suction member; 5 is a filter element; 6 is an inlet; 7 is an outlet; 8 is a first part; 9 is a second part; 10 is a third part. DETAILED DESCRIPTION

[0025] The following is a specific embodiment of the present application combined with the drawings, which further describes the technical scheme of the present application, but the present application is not limited to these embodiments.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications also change accordingly.

[0027] As Figure 1 shown, a filtering device for winding head in the present scheme is used to filter the conductive carbon black dust generated in the winding head during the manufacturing process of high-voltage cable. The winding head is a functional component in the winding machine, which is used to wind the outer layer material such as insulation material, shielding layer or armored layer on the cable, wire or other wire material; the protective cover 1 is the shell of the winding machine, which plays the role of safety protection and dust isolation.

[0028] AsFigures 1 to 2 As shown, the utility model relates to a filter device for winding head, include: main part 2, its inside is provided with the passageway 3 of gas circulation, the one end of passagewaay 3 is communicated with the protective cover 1, and the other end is communicated with the outside environment, the air extraction piece 4 is set up on main part 2, is used for the air extraction in the protective cover 1 and passageway 3, the conductive carbon black dust that scatters in air, can be carried with air and flow into passageway 3 from the protective cover 1 because the air extraction in the protective cover 1 and passageway 3 of air extraction piece 4, filter piece 5 is set up in passageway 3, is used for filtering out the conductive carbon black dust in the air that flow into passageway 3.

[0029] When working, the air extraction in the protective cover 1 and passageway 3 of air extraction piece 4 forms the negative pressure in the protective cover 1 and passageway 3, promotes the outside clean air to flow into the protective cover 1 through the specially designed air inlet or tiny gap on the protective cover 1, and the air containing the conductive carbon black dust in the protective cover 1 is sucked into passageway 3, and filter piece 5 filters the air that flow into passageway 3, and the conductive carbon black dust carried in the air is effectively intercepted and adhered on filter piece 5, and the clean air after filtering flows into the outside environment along passageway 3, ensures that the air quality of discharge meets the environmental protection requirement, and through the continuous air extraction and filtering, the concentration of the conductive carbon black dust in the protective cover 1 is greatly reduced, thereby reducing the accumulation thereof in the protective cover 1, when the winding material is exhausted and needs to be replaced, the conductive carbon black dust does not escape when opening the protective cover 1, which not only significantly improves the working environment, but also effectively reduces the harm to the health of workers.

[0030] Further, filter piece 5 can be detachably connected in passageway 3, facilitating regular maintenance and cleaning, after working for a period of time, filter piece 5 in passageway 3 can be detached and put into a heating box, heated at a specific temperature (such as 400 DEG C) for a certain time (such as 30 minutes), in this process, the conductive carbon black dust and other main pollutants on filter piece 5 can be oxidized and decomposed at high temperature, generating carbon dioxide and other gases, after the heating treatment, filter piece 5 is checked and confirmed to have no residual pollutants, and then installed back into passageway 3 for continuous use.

[0031] In order to improve the filtering efficiency and effect, at least two filter pieces 5 are arranged in passageway 3, which can increase the number and level of air filtration, thereby more thoroughly removing the conductive carbon black dust particles in the air.

[0032] Further preferably, filter piece 5 is arranged along the gas flow path in passageway 3 in sequence, which means that the air will pass through each filter piece 5 in sequence, and each filter piece 5 will filter the air once, which ensures that the air can be effectively purified on each path, gradually reducing the pollutant concentration in the air.

[0033] Further preferably, the filter 5 is a filter screen with uniform pore size, which design makes the filtering process more stable, avoiding the problem of local blockage or poor filtering effect caused by uneven pore size.

[0034] Further preferably, the pore size of the filter screens arranged along the gas flow path decreases step by step; the filter screen with larger pore size first captures larger particles, preventing them from entering the subsequent finer filter layer, protecting these fine filter layers from premature clogging; the step-by-step decreasing pore size design can filter different size particles at different stages, ultimately achieving higher filtering precision.

[0035] Therefore, at least two filter screens 5 with uniform pore size and decreasing pore size step by step are arranged along the gas flow path in the channel 3, which design makes the filtering device in this scheme can efficiently and effectively remove the conductive carbon black dust and other small particulate matters carried in the air. Specifically, the multi-stage filtering design not only improves the filtering efficiency, but also enhances the reliability and durability of the system; the step-by-step decreasing pore size design cleverly combines the advantages of primary filtering and fine filtering, ensuring that the air can meet high cleaning standards after layer-by-layer purification, while also reducing maintenance frequency and cost.

[0036] Further preferably, the material of the filter screen is 316 stainless steel, which is particularly suitable for environments containing conductive carbon black dust and other small particulate matters due to its excellent corrosion resistance, high strength, and good high-temperature performance, can effectively resist wear and maintain long-term stability, ensuring the efficient operation of the filtering system.

[0037] In order to make the air carrying conductive carbon black dust in the protective cover 1 flow into the channel 3, and ensure that the filtered air can flow from the channel 3 into the external environment, the channel 3 has an inlet 6 communicating with the protective cover 1 and an outlet 7 communicating with the external environment, the inlet 6 is used to guide the air containing conductive carbon black dust into the channel 3, and the outlet 7 is used to discharge the filtered clean air to the external environment.

[0038] Further preferably, the air extractor 4 is a fan, which is located on one side of the channel 3 close to the outlet 7, this layout has the following advantages: improving filtering efficiency, since the fan is close to the end of the channel 3, the air must pass through all the filter screens before being extracted after entering the channel 3, which ensures that the air has enough time to contact the filter screens in the channel 3, thereby improving the filtering effect; preventing unfiltered air from leaking out, the negative pressure generated by the fan helps to maintain the sealing of the entire system, preventing untreated contaminated air from leaking out of the system.

[0039] Further, the gas passage 3 has a first part 8, a second part 9 and a third part 10, and the specific layout is as follows: the first part 8 is in communication with the protective cover 1 at one end and is perpendicular to the side wall of the protective cover 1; the second part 9 extends upward along a direction perpendicular to the first part 8 from the other end of the first part 8, and the end of the first part 8 and the starting end of the second part 9 are smoothly connected through a first bending part, and the filter 5 is installed in the second part 9; the third part 10 is turned through a second bending part from the end of the second part 9 and continues to extend along a direction parallel to the first part 8, and the air extractor 4 is located in the third part 10; such a layout design ensures that the air can enter the first part 8 from the protective cover 1, sequentially pass through the filter 5 in the second part 9 for filtering treatment, and finally flow to the third part 10 and discharge the purified air from the outlet 7, thereby realizing efficient air filtering and discharging.

[0040] The filters 5 are arranged along the second part 9 in sequence and maintain a certain spacing between each filter 5, and such an arrangement can ensure that even in special circumstances (such as air flow impact or maintenance operation) the conductive carbon black dust falls off from the upper filter 5, it can be captured by the next layer of filter 5, thereby avoiding the direct falling of the pollutants into the protective cover 1, and for the lowermost filter 5, even if the conductive carbon black dust falls off, it can be deposited in the first part 8, and the design of the first part 8 ensures that the pollutants cannot flow back into the protective cover 1, and at the same time, the air extractor 4 can discharge them out of the system.

[0041] The filter device in the utility model is suitable for filtering the conductive carbon black dust generated in the high-voltage cable manufacturing process, and through the optimization of the passage 3 design, the filter 5 arrangement and the material selection, the filter device in the scheme not only improves the filtering efficiency, but also significantly improves the working environment and protects the health of the operators; in the future, with the continuous progress of technology, the device is expected to be applied in more fields and bring greater benefits to industrial production.

[0042] It should be noted that in the present application, the description of "first", "second", "one" and the like are only used for the purpose of description and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0044] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A filter device for use in a wrapping head for filtering electrically conductive carbon black dust, which is produced during a wrapping process and is dispersed in the air, the wrapping head being covered on the outside with a protective cover, characterized in that The filter device comprises: a main body, in which a channel for gas flow is arranged, one end of the channel being in communication with the protective cover, and the other end being in communication with the external environment; an air extraction member arranged on the main body, for extracting air from the protective cover and the channel; conductive carbon black dust dispersed in the air, which can be carried by the air from the protective cover into the channel due to the air extraction of the air extraction member; a filter member arranged in the channel, for filtering out the conductive carbon black dust in the air flowing into the channel.

2. A filter device for around-the-head use according to claim 1, characterized in that The filter member is detachably connected in the channel.

3. The filtering device for around-the-head use according to claim 1, wherein At least two filter members are arranged in the channel.

4. A filter device for around-the-head use according to claim 3, wherein The filter members are arranged in sequence along the gas flow path in the channel.

5. A filter device for around-the-head use according to claim 4, wherein The filter member is a filter screen with uniform pore size.

6. A filter device for around-the-head use according to claim 5, wherein The pore size of the filter screen gradually decreases along the gas flow path.

7. A filter device for around-the-head use according to claim 6, wherein The material of the filter screen is 316 stainless steel.

8. The filtering device for around-the-head use according to claim 1, wherein The channel has an inlet in communication with the protective cover, for carrying the conductive carbon black dust into the channel by the gas, and an outlet in communication with the external environment, for flowing the filtered gas into the external environment.

9. A filter device for around-the-head use according to claim 8, wherein The air extraction member is an air extractor, which is located on one side of the channel close to the outlet.

10. The filtering device for around-the-head use according to claim 1, wherein The channel has a first part, a second part and a third part, one end of the first part being in communication with the protective cover and perpendicular to the side wall of the protective cover, the second part extending upward from the other end of the first part in a direction perpendicular to the first part, the end of the first part and the starting end of the second part being smoothly connected by a first bending part, the third part extending from the end of the second part, turning through a second bending part and continuing to extend in a direction parallel to the first part, the filter member being arranged in the second part, and the air extraction member being located in the third part.

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