An off-line backflush device for a dust extraction system

Abstract

This utility model relates to an offline back-blowing device for a vacuum system, comprising a power supply module and a control module. The output terminal of the power supply module is connected to the input terminal of the control module. The input terminal of the control module is connected to the output terminal of a switch signal module, the output terminal of a sensing signal module, the output terminal of a valve plate control output module, the output terminal of a back-blowing solenoid valve control output module, the input terminal of a valve plate solenoid valve, the input terminal of a timer button indicator light, the input terminal of the back-blowing solenoid valve, and the input terminal of a fan automatic door switch. This utility model can achieve the purpose of reducing costs.

Description

Technical Field

[0001] This utility model relates to an offline back-blowing device for a dust collection system. Background Technology

[0002] The original production line's backflushing system was an online system that would intermittently activate during production. However, to ensure normal production, the dust extraction fan was not shut down, resulting in a weak backflushing effect. Furthermore, the activation frequency was low and the timing was unpredictable. Additionally, the original production line required frequent filter replacements, increasing costs.

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create an offline back-blowing device for a new type of dust collection system, making it more valuable for industrial applications. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an offline back-blowing device for a dust collection system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An offline backflushing device for a vacuum system includes a power supply module and a control module. The output terminal of the power supply module is connected to the input terminal of the control module. The input terminal of the control module is connected to the output terminal of a switch signal module, the output terminal of a sensing signal module, the output terminal of a valve plate control output module, the output terminal of a backflushing solenoid valve control output module, the input terminal of a valve plate solenoid valve, the input terminal of a reservation button indicator light, the input terminal of the backflushing solenoid valve, and the input terminal of a fan automatic door switch.

[0006] Preferably, in the offline back-blowing device of the dust collection system, the power supply module is DC24V.

[0007] Preferably, in the offline back-blowing device of the dust collection system, the control module is a PLC.

[0008] Preferably, in the offline back-blowing device of the dust collection system, the switch signal module includes a fan operation switch, a production line manual status switch, a fan automatic switch, and a reservation button switch.

[0009] Preferably, in the offline back-blowing device of the vacuum system, the sensing signal module includes a valve plate closing sensor and a valve plate closing device.

[0010] By means of the above solution, this utility model has at least the following advantages: This invention utilizes the production line downtime to shut down the dust extraction fan and back-blow the filter element, thereby increasing the filter element's lifespan. The improved filter element lifespan and dust extraction effect achieve the goal of reducing costs.

[0011] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the principle of this utility model; Figure 2 This is the actual circuit diagram of the control module of this utility model; Figure 3 This is the actual circuit diagram of the control module's input and output connections in this utility model; Figure 4 This is the actual circuit diagram of the valve plate control output module and the backflush solenoid valve control output module of this utility model; Figure 5 This is the actual circuit diagram of the valve plate solenoid valve and the backflush solenoid valve of this utility model. Figure 6 This is the actual circuit diagram of the switch signal module and the sensing signal module of this utility model. Detailed Implementation

[0014] 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0016] Example like Figures 1 to 6 As shown, an offline back-blowing device for a vacuum system includes a power supply module 1 and a control module 2. The output terminal of the power supply module 1 is connected to the input terminal of the control module 2. The input terminal of the control module 2 is connected to the output terminal of the switch signal module 3. The input terminal of the control module 2 is connected to the output terminal of the sensing signal module 4. The input terminal of the control module 2 is connected to the output terminal of the valve plate control output module 5. The input terminal of the control module 2 is connected to the output terminal of the back-blowing solenoid valve control output module 6. The output terminal of the control module 2 is connected to the input terminal of the valve plate solenoid valve 7. The output terminal of the control module 2 is connected to the input terminal of the reservation button indicator light 8. The output terminal of the control module 2 is connected to the input terminal of the back-blowing solenoid valve 9. The output terminal of the control module 2 is connected to the input terminal of the fan automatic door switch 10.

[0017] In this embodiment, the power supply module 1 is DC24V.

[0018] In this embodiment, the control module 2 is a PLC, specifically a Siemens PLC S71200, and an offline backflush program is written using the C# language for the HMI. The PLC program is based on techniques known to those skilled in the art and will not be described in detail here.

[0019] In this embodiment, the switch signal module 3 includes a fan operation switch 31, a production line manual status switch 32, a fan automatic switch 33, and a reservation button switch 34. In this embodiment, the sensing signal module 4 includes a valve plate closing sensor 41 and a valve plate closing device 42.

[0020] The working principle of this utility model is as follows: In practice, after the production line is in manual mode for a certain period of time (set by those skilled in the art, generally 5 to 10 seconds), the vacuum fan is turned off and the offline backflushing is started. At this time, the original four backflushing solenoid valves of the vacuum system are opened sequentially in 200ms intervals and then immediately closed. When the pneumatic solenoid valves are opened for a short time, the compressed air in the air tank enters the interior of the 12 filter elements of the vacuum system within 200ms, forming a short-term impact that blows down the dust on the outer layer of the filter elements and collects it in the dust collection bin at the bottom.

[0021] Those skilled in the art can set offline backflush parameters on the HMI, such as: 1. the number of hours to perform backflush per day; 2. the number of backflushes per hour; 3. the short opening time of the solenoid valve for each backflush.

[0022] The operator installs a one-button start / stop button with a green indicator light on the control panel. This button can be used to schedule the activation of the offline backflushing command. When the production line is in manual mode, the offline backflushing information will be activated. During the activation and waiting process, the indicator light will flash, indicating that the schedule is successful. If the conditions are met and the backflushing program is being started, the indicator light will remain on. When the schedule is closed, the indicator light will remain off.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An offline back-blowing device for a dust collection system, comprising a power supply module (1) and a control module (2), characterized in that: The output of the power supply module (1) is connected to the input of the control module (2). The input of the control module (2) is connected to the output of the switch signal module (3). The input of the control module (2) is connected to the output of the sensing signal module (4). The input of the control module (2) is connected to the output of the valve plate control output module (5). The input of the control module (2) is connected to the output of the backflush solenoid valve control output module (6). The output of the control module (2) is connected to the input of the valve plate solenoid valve (7). The output of the control module (2) is connected to the input of the reservation button indicator light (8). The output of the control module (2) is connected to the input of the backflush solenoid valve (9). The output of the control module (2) is connected to the input of the fan automatic door switch (10).

2. The offline back-blowing device for a dust collection system according to claim 1, characterized in that: The power supply module (1) is DC24V.

3. The offline back-blowing device for a dust collection system according to claim 1, characterized in that: The control module (2) is a PLC.

4. The offline back-blowing device for a dust collection system according to claim 1, characterized in that: The switch signal module (3) includes a fan operation switch (31), a production line manual status switch (32), a fan automatic switch (33), and a reservation button switch (34).

5. The offline back-blowing device for a dust collection system according to claim 1, characterized in that: The sensing signal module (4) includes a valve plate closing sensor (41) and a valve plate closing device (42).

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