Self-cleaning biomass ignition gun

Abstract

The utility model relates to a self-ash-removing biomass ignition gun, including ignition gun body and ignition pole, the ignition gun body includes the barrel and the connecting seat of the tail end of the barrel closure, the ignition pole extends to the inside of the barrel through the connecting seat, the ignition pole rotates and is installed on the connecting seat through the resettable connecting piece, the outside of connecting seat is provided with the repeated rotation drive mechanism for driving the ignition pole to carry out the repeated swing with the resettable connecting piece as the pivot point. The self-ash-removing biomass ignition gun, through setting resettable connecting piece on the connecting seat, and make the ignition pole realize swingable installation with the connecting piece as the pivot point, when repeated rotation drive mechanism drives eccentric disc rotation, the ignition pole can produce periodic swing around the pivot point, and cooperate reset torsional spring and restore, thereby produce the mechanical vibration of continuity in the compressed air purging process, make the dust, charring particle or tar deposit on the surface of ignition needle be shaken loose and discharge along with the airflow.

Description

Technical Field

[0001] This utility model relates to the field of biomass combustion technology, specifically a self-cleaning biomass ignition gun. Background Technology

[0002] Currently, biomass combustion equipment generally uses an ignition gun to ignite the fire source during the ignition process. Existing ignition guns typically consist of a gun body, an ignition rod, and a gas passage. Their ignition principle is mostly to ignite the fuel by forming a flame through high-voltage electrode discharge and gas injection. However, under biomass combustion conditions, because the fuel contains a lot of ash, impurities, and volatile particles, the ignition gun is in a high-temperature, high-dust, and high-humidity environment for a long time. Dust, carbon deposits, or tar deposits are easily accumulated on the ignition rod. These deposits will affect the electrode gap, reduce the discharge intensity, and lead to unstable ignition or even failure.

[0003] Some existing technologies have added a compressed air purging device to the ignition gun structure. This device uses high-pressure gas to periodically blow air into the gun body or the surface of the ignition rod to clean ash and extend service life. However, relying solely on gas purging is not very effective at cleaning ash, tar, and other deposits that have adhered to or partially solidified on the ignition rod. Manual disassembly and cleaning are often required, which not only increases maintenance workload but may also cause equipment downtime and damage to the ignition gun. Therefore, a self-cleaning biomass ignition gun is proposed to solve the aforementioned problems. Utility Model Content

[0004] This invention provides a self-cleaning biomass ignition gun that can achieve efficient self-cleaning without disassembly. By combining mechanical oscillation, it improves the ash-cleaning effect and ignition reliability, reduces maintenance frequency, and extends the service life of the ignition components.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A self-cleaning biomass ignition gun includes an ignition gun body and an ignition rod, wherein the ignition gun body includes a gun barrel and a connecting seat that closes the tail end of the gun barrel, and the ignition rod extends through the connecting seat into the interior of the gun barrel. The ignition rod is rotatably mounted on the connecting seat through a resettable connector. A repetitive rotation drive mechanism is provided on the outside of the connecting seat to drive the ignition rod to repeatedly swing around the resettable connector as the axis.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the barrel is provided with a fixing block located at the front end of the ignition rod, and the fixing block is provided with a movable groove for the ignition rod to pass through and which is adapted to its rotation direction.

[0008] Furthermore, the connecting seat is provided with a mounting port that allows for rotation, and rotating holes are symmetrically arranged on the two inner walls opposite to the mounting port.

[0009] Furthermore, the resettable connector includes two symmetrically arranged rotating shafts outside the ignition rod, the ends of the two rotating shafts being rotatably connected to corresponding mounting ports, and a reset torsion spring being fitted onto the outside of the rotating shafts.

[0010] Furthermore, a fixed connecting block is fixedly provided on the inner wall of the mounting port, and a movable connecting block is provided on the outer wall of the ignition rod. The two ends of the reset torsion spring are respectively connected to the fixed connecting block and the movable connecting block.

[0011] Furthermore, the repetitive rotation drive mechanism includes a support base, on which a drive device is mounted, and an eccentric disk is mounted on the output shaft of the drive device. The eccentric disk is in contact with a section of the ignition rod located outside the connecting base.

[0012] Furthermore, rotatable balls are evenly distributed on the outside of the eccentric disk.

[0013] Furthermore, it also includes a gas pipe that extends through the connector into the interior of the gun barrel and has a gap between it and the ignition rod. The fixing block is provided with fixing holes for the gas pipe to pass through.

[0014] Furthermore, the ignition rod is pivoted around the shaft, and its front end rotates toward the side away from the gas pipe; The end of the gas pipe located outside the connector is inclined toward the side away from the ignition rod.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This self-cleaning biomass ignition gun features a resettable connector on the connecting seat, allowing the ignition rod to be oscillating around the connector as an axis. When the eccentric disc is rotated by the repeatedly rotating drive mechanism, the ignition rod can oscillate periodically around the axis and return to its original position with the reset torsion spring. This generates continuous mechanical vibration during compressed air purging, loosening dust, carbonized particles, or tar deposits on the ignition needle surface and expelling them with the airflow. Compared to traditional ash-cleaning methods that rely solely on gas jets, this design significantly improves the ash-cleaning effect, reduces the ignition failure rate, and ensures the stability and reliability of the ignition process.

[0016] 2. This self-cleaning biomass ignition gun, by setting the repetitive rotation drive mechanism on the outside of the ignition gun, and the drive device and eccentric disc cooperating with the ignition rod outside the connecting seat, does not change the original gas path and electrode structure inside the ignition gun. It has the advantages of simple structure, convenient installation and easy maintenance. While realizing automatic self-cleaning, it avoids the problem of frequent disassembly and maintenance required by traditional ignition guns due to long-term ash accumulation, effectively extending the service life of the ignition components and improving the automation level and overall operating efficiency of the biomass combustion device. Attached Figure Description

[0017] Figure 1 A schematic diagram of a self-cleaning biomass ignition gun provided for an embodiment of this utility model; Figure 2 for Figure 1 A half-section structural diagram; Figure 3 for Figure 1 Another perspective on the structure diagram; Figure 4 This is a structural diagram of the fixing block according to an embodiment of the present utility model; Figure 5 This is a diagram showing the compressed gas connection structure of the ignition gun body according to an embodiment of the present invention; Figure 6 This is a structural diagram of the resettable connector according to an embodiment of the present utility model.

[0018] Figure 7 This is a structural diagram of the eccentric disk according to an embodiment of the present utility model.

[0019] The attached diagram lists the components represented by each number as follows: 1. Ignition gun body; 101. Barrel; 102. Connecting seat; 103. Mounting port; 104. Rotary hole; 2. Air inlet pipe; 3. Compressed air inlet pipe; 4. Gas pipe; 5. Ignition rod; 6. Fixing block; 601. Movable groove; 602. Fixing hole; 7. Repeated rotation drive mechanism; 701. Support base; 702. Drive device; 703. Eccentric disc; 704. Ball bearing; 8. Resettable connector; 801. Rotating shaft; 802. Fixed connecting block; 803. Movable connecting block; 804. Reset torsion spring; 9. Compressed air pipeline; 10. Solenoid valve. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figure 1-7 As shown, a self-cleaning biomass ignition gun in this embodiment includes an ignition gun body 1, a gas pipe 4, an ignition rod 5, and a repetitive rotation drive mechanism 7. The ignition gun body 1 includes a connecting seat 102 and a gun barrel 101 with open ends. The connecting seat 102 is fixed to the tail end of the gun barrel 101 and closes the opening at the tail end. An air inlet pipe 2 is connected to the gun barrel 101 to meet the air requirement during combustion.

[0022] Furthermore, both the gas pipe 4 and the ignition rod 5 extend through the connecting seat 102 into the interior of the gun barrel 101. In this embodiment, the two are located on the same vertical axis, and the ignition rod 5 is horizontally located below the gas pipe 4, maintaining a corresponding gap to meet the ignition requirements. The ignition rod 5 is rotatably mounted on the connecting seat 102 via a resettable connector 8. Specifically, the rotation direction is as follows: the ignition rod 5 rotates with the resettable connector 8 as the axis, causing its front end to rotate away from the gas pipe 4, thereby avoiding unnecessary interference with the gas pipe 4. In this embodiment, the ignition rod 5 rotates with its front end downwards with the connection point with the connecting seat 102 as the axis.

[0023] It should be noted that the rotation angle of the ignition rod 5 is 1 to 3 degrees, and the control line connected to the end of the ignition rod 5 has a margin for rotation.

[0024] In order to achieve the above-mentioned conditions for rotating and installing the ignition rod 5, the connecting seat 102 is provided with a mounting port 103 that allows the resettable connecting member 8 to rotate, and rotating holes 104 are symmetrically arranged on the two inner walls opposite to each other of the mounting port 103. In this embodiment, the two rotating holes 104 are symmetrically arranged on the inner walls opposite to each other on the left and right sides of the mounting port 103.

[0025] The resettable connector 8 includes two symmetrically arranged rotating shafts 801 outside the ignition rod 5. The ends of the two rotating shafts 801 are rotatably connected to corresponding mounting ports 103, thereby allowing the ignition rod 5 to rotate about the rotating shafts 801. A reset torsion spring 804 is fitted around the outside of the rotating shafts 801. Figure 6 As shown, a fixed connecting block 802 is fixed on the inner wall of the mounting port 103, and a movable connecting block 803 is provided on the outer wall of the ignition rod 5. The two ends of the reset torsion spring 804 are connected to the fixed connecting block 802 and the movable connecting block 803 respectively, so that the ignition rod 5 can be reset by the action of the reset torsion spring 804 after rotation.

[0026] In the preferred embodiment, a flexible skin is provided on the outside of the mounting port 103 (not shown in the figure). The outer edge of the flexible skin is bonded to the edge of the mounting port 103, and the inner edge is bonded to the outside of the ignition rod 5, thereby ensuring the sealing of the mounting port 103 without affecting rotation. The flexible skin can be made of silicone-coated fiberglass cloth.

[0027] The repetitive rotation drive mechanism 7 is installed on the outside of the connecting seat 102, specifically including a support seat 701. A drive device 702 is installed on the support seat 701. The drive device 702 is a miniature brushless DC motor. An eccentric disk 703 is installed on the output shaft of the drive device 702. The eccentric disk 703 is in contact with a section of the ignition rod 5 located outside the connecting seat 102. In this embodiment, the eccentric disk 703 is located below the ignition rod 5.

[0028] With this design, the eccentric disk 703 can be driven by the drive device 702 to rotate below the ignition rod 5. By utilizing the shape of the eccentric disk 703 and the restoring effect of the reset torsion spring 804, the ignition rod 5 can swing back and forth below the gas pipe 4. This swinging motion of the ignition rod 5 can effectively shake off the dust and carbon deposits attached to it.

[0029] In the preferred embodiment, rotatable balls 704 are evenly distributed on the outside of the eccentric disk 703, thereby effectively reducing the friction between it and the ignition rod 5.

[0030] In the preferred embodiment, the end of the gas pipe 4 located outside the connector 102 is tilted toward the side away from the ignition rod 5. In this embodiment, it is tilted upward, thereby creating space for the tail end of the ignition rod 5 to swing.

[0031] In the preferred embodiment, the barrel 101 is provided with a fixing block 6 located at the front end of the ignition rod 5 and the gas pipe 4. The fixing block 6 is provided with a fixing hole 602 for the gas pipe 4 to pass through. The fixing block 6 is also provided with a movable groove 601 for the ignition rod 5 to pass through and adapted to its rotation direction. In this embodiment, the movable groove 601 is a vertical groove, which can further restrict the rotation of the ignition rod 5 and avoid unnecessary shaking. At the same time, the small collision between the ignition rod 5 and the groove can further improve the effect of shaking off dust and carbon deposits. It should be noted that the collision force needs to be controlled within the range that the ignition rod 5 can withstand.

[0032] In another embodiment, a compressed air inlet pipe 3 is connected to the barrel 101, and a compressed air pipeline 9 is connected to the compressed air inlet pipe 3. A solenoid valve 10 is installed on the compressed air pipeline 9, and the other end of the compressed air pipeline 9 is a compressed gas inlet for connecting to a corresponding compressed air supply device so as to deliver high-pressure gas into the barrel 101 when the solenoid valve 10 is opened, thereby blowing away and cleaning the dust and impurities in and around the ignition rod 5.

[0033] This design, through the combination of high-pressure gas and the swing of the ignition rod 5, can achieve vibration cleaning of the ignition needle surface during high-pressure gas purging, so that the attached dust and carbon deposits are effectively shaken off and discharged with the airflow, improving cleaning efficiency and ignition reliability.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A self-cleaning biomass ignition gun, comprising an ignition gun body (1) and an ignition rod (5), wherein the ignition gun body (1) includes a barrel (101) and a connecting seat (102) that closes the tail end of the barrel (101), and the ignition rod (5) extends through the connecting seat (102) into the interior of the barrel (101), characterized in that: The ignition rod (5) is rotatably mounted on the connecting seat (102) via a resettable connector (8). A repetitive rotation drive mechanism (7) is provided on the outside of the connecting seat (102) to drive the ignition rod (5) to swing repeatedly around the resettable connector (8) as the axis.

2. The self-cleaning biomass ignition gun according to claim 1, characterized in that: The barrel (101) is provided with a fixing block (6) located at the front end of the ignition rod (5), and the fixing block (6) is provided with a movable groove (601) for the ignition rod (5) to pass through and which is adapted to its rotation direction.

3. A self-cleaning biomass ignition gun according to claim 1 or 2, characterized in that: The connecting seat (102) is provided with a mounting port (103) that allows rotation, and rotating holes (104) are symmetrically provided on the two inner walls opposite to the mounting port (103).

4. The self-cleaning biomass ignition gun according to claim 3, characterized in that: The resettable connector (8) includes two symmetrically arranged rotating shafts (801) outside the ignition rod (5). The ends of the two rotating shafts (801) are rotatably connected to the corresponding mounting ports (103), and a reset torsion spring (804) is fitted on the outside of the rotating shafts (801).

5. The self-cleaning biomass ignition gun according to claim 4, characterized in that: A fixed connecting block (802) is fixedly provided on the inner wall of the mounting port (103), and a movable connecting block (803) is provided on the outer wall of the ignition rod (5). The two ends of the reset torsion spring (804) are respectively connected to the fixed connecting block (802) and the movable connecting block (803).

6. The self-cleaning biomass ignition gun according to claim 4, characterized in that: The repetitive rotation drive mechanism (7) includes a support base (701), a drive device (702) is mounted on the support base (701), an eccentric disk (703) is mounted on the output shaft of the drive device (702), and the eccentric disk (703) is in contact with a section of the ignition rod (5) located outside the connecting seat (102).

7. The self-cleaning biomass ignition gun according to claim 6, characterized in that: Rotatable balls (704) are evenly distributed on the outside of the eccentric disk (703).

8. The self-cleaning biomass ignition gun according to claim 4, characterized in that: It also includes a gas pipe (4), which extends through the connector (102) into the interior of the barrel (101) and has a gap between it and the ignition rod (5); The fixing block (6) is provided with a fixing hole (602) through which the gas pipe (4) passes.

9. The self-cleaning biomass ignition gun according to claim 8, characterized in that: The ignition rod (5) is pivoted around the pivot (801) and its front end rotates toward the side away from the gas pipe (4); The gas pipe (4) is located outside the connector (102) and is tilted toward the side away from the ignition rod (5).

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