Plastic filter screen cleaning device

Abstract

The utility model provides a plastic filter screen cleaning device, which belongs to the technical field of cleaning equipment and comprises a shell, a compressed gas storage bag is fixedly arranged on one side of the shell, the gas inlet end of the compressed gas storage bag is connected with a gas compressor, the gas inlet end of the gas compressor is connected with a gas source, and the gas source is connected with a gas outlet of the shell. The air outlet end of the compressed air storage bag is connected with a pulse valve, and the air outlet end of the pulse valve is connected with a blowing pipeline used for cleaning a filter screen arranged in the inner cavity of the shell. According to the plastic filter screen cleaning device, the filter screen can be cleaned, the filtering air speed of the filter screen and the conveying speed of plastic particles are guaranteed, the blowing holes are evenly formed in the bottom of the blowing pipe, multi-point blowing is formed, and the cleaning effect of the filter screen is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a plastic filter cleaning device. Background Technology

[0002] In the plastics industry, during the negative pressure conveying of plastic granules, the granules flow very fast. The friction between the granules and the pipe wall generates heat, causing the granules to melt. Some granules will turn into long filaments. When entering the negative pressure suction hopper, the long filaments will be adsorbed on the surface of the filter screen. Over time, this will affect the filtration speed of the filter screen, and thus affect the conveying speed of the plastic granules.

[0003] Therefore, we propose a plastic filter cleaning device. Utility Model Content

[0004] The purpose of this invention is to provide a plastic filter cleaning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a plastic filter cleaning device, including a housing, a compressed air storage tank fixedly provided on one side of the housing, a gas compressor connected to the air inlet end of the compressed air storage tank, a gas source connected to the air inlet end of the gas compressor, a pulse valve connected to the air outlet end of the compressed air storage tank, and a blow pipe connected to the air outlet end of the pulse valve for cleaning the filter screen disposed in the inner cavity of the housing.

[0007] Furthermore, the blowing pipeline includes a connecting pipe, one end of which is connected to the air outlet of the pulse valve, and the end of the connecting pipe away from the pulse valve is connected to a blowing pipe. The blowing pipe is fixedly installed on the side of the suction hopper cover facing the inner cavity of the outer shell, and the blowing pipe is provided with a plurality of blowing holes.

[0008] Furthermore, the connecting pipe includes a straight connecting pipe and a bent connecting pipe. One end of the straight connecting pipe is connected to the air outlet of the pulse valve, the end of the straight connecting pipe away from the pulse valve is connected to the bent connecting pipe, and the end of the bent connecting pipe away from the straight connecting pipe is connected to the air inlet of the blow pipe.

[0009] Furthermore, the blowpipe has a ring-shaped structure.

[0010] Furthermore, the blow holes are opened on the side of the blow pipe facing the filter screen, and the blow holes are evenly arranged along the circumference of the blow pipe.

[0011] Compared with the prior art, the present invention has the following technical effects:

[0012] In this invention, an air compressor inputs compressed gas into a compressed gas storage tank. The compressed gas then enters a pulse valve through the outlet of the storage tank. The pulse valve releases the compressed gas in a very short time, and the released gas enters a blowpipe. The blowpipe sprays the compressed gas onto the filter screen, where it forms an airflow that blows down long, filamentous particles, thus cleaning the filter screen and ensuring both the filtration velocity and the conveying speed of the plastic particles. Furthermore, the blowpipe has a ring-shaped structure with evenly spaced nozzles at the bottom, enabling multi-point blowing and enhancing the cleaning effect. Additionally, the blowpipe is fixedly mounted on the suction hopper cover, facilitating easy removal and subsequent maintenance after the cover is separated from the outer casing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the plastic filter cleaning device in this embodiment;

[0014] Figure 2 This is a schematic diagram of the blowpipe structure in this embodiment.

[0015] In the diagram: 1. Outer shell, 2. Compressed gas storage tank, 3. Gas compressor, 4. Gas source, 5. Pulse valve, 6. Pulse jet pipe, 61. Connecting pipe, 611. Straight connecting pipe, 612. Bent connecting pipe, 62. Pulse jet pipe, 63. Pulse jet hole, 7. Suction hopper cover, 8. Filter screen, 9. Support, 10. Discharge pipe, 11. Feed pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 2 This embodiment provides a plastic filter cleaning device, including a housing 1, which can be made of commonly used metal materials, such as steel. A suction hopper cover 7 is detachably fixed to the top of the housing 1. A discharge pipe 10 is fixed to the side of the suction hopper cover 7 away from the inner cavity of the housing 1. The end of the discharge pipe 10 away from the suction hopper cover 7 is connected to a negative pressure pipeline. An inlet pipe 11 is fixedly connected to the bottom of the housing 1. A filter screen 8 is provided in the inner cavity of the housing 1. During the negative pressure conveying process, plastic particles that have completed the previous process enter through the inlet pipe 11, are filtered by the filter screen 8, and then enter the negative pressure pipeline through the discharge pipe 10 on the suction hopper cover 7.

[0018] Specifically, a compressed gas storage tank 2 is fixedly installed on one side of the outer casing 1, and the compressed gas storage tank 2 is fixedly installed on the outer casing 1 by a bracket 9. The inlet end of the compressed gas storage tank 2 is connected to the outlet end of the gas compressor 3, and the inlet end of the gas compressor 3 is connected to the gas source 4. The gas compressor 3 can compress the gas provided by the gas source 4 into compressed gas, and then the gas compressor 3 inputs the compressed gas into the compressed gas storage tank 2, which can store a certain amount of compressed gas. The outlet end of the compressed gas storage tank 2 is connected to the inlet end of the pulse valve 5, and the outlet end of the pulse valve 5 is connected to the blow pipe 6, which is used to clean the filter screen 8.

[0019] Specifically, the air compressor 3 compresses the gas supplied by the air source 4 into compressed gas. Then, the air compressor 3 inputs the compressed gas into the compressed gas storage tank 2. The compressed gas enters the pulse valve 5 through the outlet of the compressed gas storage tank 2. The pulse valve 5 can release the compressed gas in a very short time. The released compressed gas enters the blow pipe 6. The blow pipe 6 sprays the compressed gas onto the filter screen 8. The compressed gas forms an airflow inside the filter screen 8, blowing down the long filamentous material, thereby cleaning the filter screen 8 and ensuring the filtration speed of the filter screen 8 and the conveying speed of the plastic particles.

[0020] Specifically, the blowing pipe 6 includes a connecting pipe 61, which comprises a straight connecting pipe 611 and a bent connecting pipe 612. One end of the straight connecting pipe 611 is connected to the outlet end of the pulse valve 5, and the end of the straight connecting pipe 611 away from the pulse valve 5 is connected to one end of the bent connecting pipe 612. The end of the bent connecting pipe 612 away from the straight connecting pipe 611 is connected to the inlet end of the blowing pipe 62. The blowing pipe 62 has several blowing holes 63, which are used to spray the compressed gas in the blowing pipe 62 onto the filter screen 8. The blowing pipe 62 is fixedly installed on the side of the suction hopper cover 7 facing the inner cavity of the outer shell 1. When the suction hopper cover 7 is separated from the outer shell 1, it is convenient to remove the entire blowing pipe 62 and carry out subsequent maintenance and repair.

[0021] Specifically, the blowpipe 62 has a ring-shaped structure, and the blow holes 63 are located on the side of the blowpipe 62 facing the filter screen 8, that is, at the bottom of the blowpipe 62. The blow holes 63 are evenly distributed around the circumference of the blowpipe 62, which can form multi-point blowing and enhance the cleaning effect of the filter screen 8. In addition, the number of blow holes 63 can be determined by the staff according to the actual situation.

[0022] Specifically, the working principle of this utility model is as follows: After the plastic particles are filtered by the filter screen 8, they enter the negative pressure pipeline from the discharge pipe 10. Over time, the plastic particles will adhere to the filter screen 8, requiring cleaning. The air compressor 3 is started, and the air compressor 3 compresses the gas provided by the air source 4 into compressed gas. Then, the air compressor 3 inputs the compressed gas into the compressed gas storage tank 2. The compressed gas enters the pulse valve 5 through the outlet of the compressed gas storage tank 2. The pulse valve 5 then... Compressed gas is released and enters the blow pipe 62 through the straight connecting pipe 611 and the bent connecting pipe 612. The blow hole 63 sprays the compressed gas in the blow pipe 62 toward the filter screen 8. The compressed gas forms an airflow in the filter screen 8, blowing down the long filaments. The blown-down long filaments fall into the equipment of the previous process through the feed pipe 11. After being processed in this process, the long filaments that fell into the previous process enter the feed pipe 11 again, are filtered by the filter screen 8, and enter the negative pressure pipeline through the discharge pipe 10.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plastic filter cleaning device, characterized in that, Includes an outer shell (1), on one side of which a compressed gas storage tank (2) is fixedly provided. The inlet end of the compressed gas storage tank (2) is connected to a gas compressor (3), the inlet end of the gas compressor (3) is connected to a gas source (4), the outlet end of the compressed gas storage tank (2) is connected to a pulse valve (5), and the outlet end of the pulse valve (5) is connected to a jet pipe (6) for cleaning the filter screen (8) set in the inner cavity of the outer shell (1).

2. The plastic filter cleaning device according to claim 1, characterized in that, The blowing pipeline (6) includes a connecting pipe (61), one end of which is connected to the air outlet of the pulse valve (5), and the end of the connecting pipe (61) away from the pulse valve (5) is connected to a blowing pipe (62). The blowing pipe (62) is fixedly installed on the side of the suction hopper cover (7) facing the inner cavity of the outer shell (1), and the blowing pipe (62) is provided with a plurality of blowing holes (63).

3. The plastic filter cleaning device according to claim 2, characterized in that, The connecting pipe (61) includes a straight connecting pipe (611) and a bent connecting pipe (612). One end of the straight connecting pipe (611) is connected to the air outlet of the pulse valve (5). The end of the straight connecting pipe (611) away from the pulse valve (5) is connected to the bent connecting pipe (612). The end of the bent connecting pipe (612) away from the straight connecting pipe (611) is connected to the air inlet of the blow pipe (62).

4. The plastic filter cleaning device according to claim 2, characterized in that, The blowpipe (62) has a ring-shaped structure.

5. The plastic filter cleaning device according to claim 4, characterized in that, The blow holes (63) are opened on the side of the blow pipe (62) facing the filter screen (8), and the blow holes (63) are evenly arranged around the circumference of the blow pipe (62).

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