A dust collection pipeline dust collection and blowing device

Abstract

This utility model relates to a dust collection pipeline dust-blowing device, including a dust collection pipeline and a bag filter, with the bag filter and dust collection pipeline connected. It also includes multiple blowing mechanisms, each comprising multiple nozzles, air pipes, and control valves. The nozzles are equidistantly arranged at the bottom of the dust collection pipeline and are located inside the pipeline. Each nozzle is connected to an air pipe, one end of which is located inside and sealed to the pipeline. The other end of the air pipe is connected to a control valve, and the other end of the control valve is connected to a conveying pipe, the other end of which is connected to an air source. The coil of the control valve is connected to a control module, which includes a controller and a drive circuit. The controller is connected to the drive circuit, and the control valve is connected to a power source through the drive circuit to form a circuit. This utility model provides blowing mechanisms inside the dust collection pipeline at its bottom. The blowing mechanisms are connected to an air source through the control valve; when the control valve opens, gas enters the blowing mechanisms to blow up the accumulated dust.

Description

Technical Field

[0001] This utility model relates to the field of aluminum ash production technology, specifically to a dust collection pipeline dust collection and blowing device. Background Technology

[0002] During the operation of aluminum ash grinding and screening equipment, a large amount of dust is generated due to the non-sealed nature of the equipment, polluting the production environment. To address this dust problem, a baghouse dust collector is used on-site to collect the dust. Pipelines are installed to connect to the baghouse dust collector, which is then connected to each piece of equipment. When the baghouse dust collector is opened, the dust is carried by the airflow into the filter bags for dust removal.

[0003] In actual use, due to the numerous branches in the main duct of the bag filter dust collector and uneven air velocity and volume, dust accumulation occurs at multiple points, such as the connection between elbows and straight pipe sections. Over time, a large amount of dust accumulates at the bottom of the duct, and in severe cases, the branch pipes become blocked. To address this, the power of the dust collector fan was increased, but the dust accumulation problem persists. Monthly shutdowns are required to cut the ductwork, manually clean the dust, and then re-weld and reinstall it, impacting production efficiency.

[0004] Therefore, there is an urgent need for a dust blowing device to blow away the deposited dust. Summary of the Invention

[0005] This invention addresses the problem of large amounts of dust accumulating in existing dust collection devices within the pipes by proposing a dust collection pipe dust-gathering jet cleaning device. A jet cleaning mechanism is installed inside the dust collection pipe at its bottom. The jet cleaning mechanism is connected to an air source via a control valve. When the control valve is opened, gas enters the jet cleaning mechanism, which then forcefully blows away the deposited dust. The dust then floats within the pipe and is carried by the airflow generated by the dust collector fan into the filter bag.

[0006] To achieve the above objectives, this utility model proposes a dust collection pipeline dust collection jetting device, including a dust collection pipeline and a bag filter. The bag filter is connected to the dust collection pipeline. It also includes multiple jetting mechanisms, each of which includes multiple nozzles, an air pipe, and a control valve. The multiple nozzles are equidistantly arranged at the bottom of the dust collection pipeline and are located inside the dust collection pipeline. The nozzles are connected to the air pipes. One end of the air pipe is located inside the dust collection pipeline and is sealed and fixed to the dust collection pipeline. The other end of the air pipe is connected to the control valve. The other end of the control valve is connected to a conveying pipe, and the other end of the conveying pipe is connected to an air source.

[0007] The control valve's coil is connected to a control module, which includes a controller and a drive circuit. The controller is connected to the drive circuit, and the control valve is connected to a power source through the drive circuit to form a circuit.

[0008] Furthermore, the air pipe includes a main pipe and branch pipes, with multiple branch pipes equidistantly arranged on the main pipe. The branch pipes are connected to the main pipe and are connected to the nozzle. A control valve is installed on the main pipe.

[0009] Furthermore, the controller includes a PLC controller, the bag filter includes a dust collector fan, the dust collector fan is equipped with a frequency converter, and the frequency converter and the PLC controller are communicatively connected.

[0010] Furthermore, the drive circuit includes a relay, the coil of which is connected to the output terminal of the PLC controller, and the normally open contact of the relay is connected to the coil of the control valve.

[0011] The PLC controller also has an HMI module for communication.

[0012] The PLC controller facilitates the control of the valve's power supply and the adjustment of the dust collector fan's power. The inclusion of an HMI module enables human-machine interaction.

[0013] Furthermore, the nozzle is a stepped cylindrical structure that is larger at the top and smaller at the bottom. The nozzle is hollow inside and open at the bottom. The small diameter end of the nozzle is connected to the branch pipe by a thread. Multiple nozzles are provided on the curved surface of the large diameter end of the nozzle, and the multiple nozzles are equidistantly arranged along the circumference of the large diameter end of the nozzle.

[0014] The nozzle is designed with a stepped cylindrical structure for easy connection to branch pipes. The large-diameter end is easy to open the nozzle orifice, which is a circular hole. The nozzle orifice is opened on the side of the nozzle, which increases the working area when the gas flows and can blow up the surrounding dust.

[0015] The beneficial effects of this utility model through the above technical solution are as follows:

[0016] This invention achieves the blowing up of deposited dust. Multiple nozzles are equidistantly arranged at the bottom of the dust collection pipe, with nozzle openings on the sides to expand the gas working surface, effectively blowing up surrounding deposited dust and achieving better blowing performance. The unique stepped cylindrical structure of the nozzles, wider at the top and narrower at the bottom, facilitates connection to branch pipes and provides space for nozzle openings. The PLC controller precisely controls the on / off state of the control valve through the drive circuit, achieving intelligent regulation of the blowing operation. Simultaneously, the PLC controller communicates with the frequency converter of the dust collector fan, allowing adjustment of the fan power according to actual conditions and optimizing the operating efficiency of the dust collection system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a dust collection pipeline dust collection and blowing device according to the present invention;

[0018] Figure 2 This is a circuit diagram of a dust collection pipeline dust-gathering and blowing device according to the present invention.

[0019] Reference numerals: 1. Dust collection pipe; 2. Nozzle; 3. Control valve; 4. Conveying pipe; 6. Main pipe; 7. Branch pipe; 9. PLC controller; 10. Dust removal fan; 11. Frequency converter; 12. Relay; 13. HMI module. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-2 As shown, a dust collection pipeline dust collection jetting device includes a dust collection pipeline 1 and a bag filter dust collector connected to the dust collection pipeline 1. The device is characterized by further including multiple jetting mechanisms, each comprising multiple nozzles 2, an air pipe, and a control valve 3. The multiple nozzles 2 are equidistantly arranged at the bottom of the dust collection pipeline 1 and are located inside the dust collection pipeline 1. The nozzles 2 are connected to the air pipe, one end of which is located inside the dust collection pipeline 1 and sealed and fixed thereto. The other end of the air pipe is connected to the control valve 3, and the other end of the control valve 3 is connected to a conveying pipe 4. The other end of the conveying pipe 4 is connected to an air source.

[0022] The coil of the control valve 3 is connected to a control module, which includes a controller and a drive circuit. The controller is connected to the drive circuit, and the control valve 3 is connected to a power source through the drive circuit to form a circuit.

[0023] The air pipe includes a main pipe 6 and branch pipes 7. Multiple branch pipes 7 are equally spaced on the main pipe 6. The branch pipes 7 are connected to the main pipe 6. The branch pipes 7 are connected to the nozzle 2. A control valve 3 is installed on the main pipe 6.

[0024] The controller includes a PLC controller 9, and the bag filter includes a dust collector fan 10. The dust collector fan 10 is equipped with a frequency converter 11, and the frequency converter 11 is communicatively connected to the PLC controller 9.

[0025] The drive circuit includes a relay 12, the coil of which is connected to the output terminal of the PLC controller 9, and the normally open contact of the relay 12 is connected to the coil of the control valve 3.

[0026] The PLC controller 9 is also connected to the HMI module 13.

[0027] The nozzle 2 is a stepped cylindrical structure with a larger top and a smaller bottom. The nozzle 2 is hollow inside and has an opening at the bottom. The small diameter end of the nozzle 2 is connected to the branch pipe 7 by a thread. Multiple nozzles are opened on the curved surface of the large diameter end of the nozzle 2, and the multiple nozzles are equidistantly opened along the circumference of the large diameter end of the nozzle 2.

[0028] Before operation, the staff sets the parameters of the PLC controller 9 system through the HMI module 13, such as the blowing interval, blowing duration, and the speed of the dust collector fan 10. The dust collection pipe 1 is a round pipe with multiple through holes evenly spaced on it. The main pipe 6 and the branch pipe 7 are welded and fixed. The small-diameter end of the nozzle 2 is connected to the branch pipe 7 by thread. The nozzle 2 is inserted into the dust collection pipe 1 through the through hole. The outer side of the branch pipe 7 is welded to the annular surface of the through hole on the dust collection pipe 1 to complete the fixing of the air pipe and the dust collection pipe 1.

[0029] During normal dust collection operation, the dust collector fan 10 runs, causing aluminum powder to enter the bag filter through the dust collection pipe 1. However, due to the long length of the dust collection pipe 1, aluminum powder gradually accumulates at the bottom of the dust collection pipe 1 near the bend.

[0030] The PLC controller 9 is set with a blowing interval and a blowing duration. In this embodiment, the blowing interval is 1 hour and the blowing duration is 5 seconds. The PLC controller 9 outputs a signal to energize the coil of relay 12, causing the normally open contact of relay 12 to close. This action connects the coil circuit of control valve 3, thereby opening control valve 3. High-pressure gas in the air source enters the main pipe 6 through the delivery pipe 4 and control valve 3, and is then delivered to nozzle 2 through branch pipe 7. The unique stepped cylindrical structure of nozzle 2, which is larger at the top and smaller at the bottom, allows high-pressure gas to be sprayed out equidistantly from multiple nozzles on the curved surface of the large-diameter end along the circumference, forming an upward blowing force on the dust deposited at the bottom of the dust collection pipe 1, thus raising the dust. At the same time, the raised dust is re-entered into the bag filter by the airflow under the action of the dust removal fan 10. After 5 seconds, the PLC controller 9 controls relay 12 and control valve 3 to reset, and nozzle 2 stops blowing.

[0031] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A dust collection pipeline dust collection and blowing device, comprising a dust collection pipeline (1) and a bag filter, wherein the bag filter and the dust collection pipeline (1) are connected, characterized in that, It also includes multiple blowing mechanisms, each including multiple nozzles (2), air pipes and control valves (3). The multiple nozzles (2) are equidistantly arranged at the bottom of the dust collection pipe (1). The nozzles (2) are located inside the dust collection pipe (1). The nozzles (2) are connected to the air pipes. One end of the air pipe is located inside the dust collection pipe (1) and is sealed and fixed to the dust collection pipe (1). The other end of the air pipe is connected to the control valve (3). The other end of the control valve (3) is connected to a conveying pipe (4). The other end of the conveying pipe (4) is connected to an air source. The coil of the control valve (3) is connected to a control module, which includes a controller and a drive circuit. The controller is connected to the drive circuit, and the control valve (3) is connected to a power source through the drive circuit to form a circuit.

2. The dust collection pipeline dust jetting device according to claim 1, characterized in that, The air pipe includes a main pipe (6) and branch pipes (7). Multiple branch pipes (7) are equidistantly arranged on the main pipe (6). The branch pipes (7) are connected to the main pipe (6). The branch pipes (7) are connected to the nozzle (2). A control valve (3) is provided on the main pipe (6).

3. The dust collection pipeline dust jetting device according to claim 1, characterized in that, The controller includes a PLC controller (9), the bag filter includes a dust collector fan (10), the dust collector fan (10) is equipped with a frequency converter (11), and the frequency converter (11) and the PLC controller (9) are communicatively connected.

4. The dust collection pipeline dust jetting device according to claim 3, characterized in that, The drive circuit includes a relay (12), the coil of which is connected to the output terminal of the PLC controller (9), and the normally open contact of the relay (12) is connected to the coil of the control valve (3). The PLC controller (9) is also connected to an HMI module (13).

5. A dust collection pipeline dust-gathering jetting device according to claim 2, characterized in that, The nozzle (2) is a stepped cylindrical structure with a larger top and a smaller bottom. The nozzle (2) is hollow inside and open at the bottom. The small diameter end of the nozzle (2) is connected to the branch pipe (7) by a thread. Multiple nozzles are opened on the curved surface of the large diameter end of the nozzle (2). The multiple nozzles are equidistantly opened along the circumference of the large diameter end of the nozzle (2).

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