Fly ash filtering device with filtering grade self-adaptive adjustment function

Abstract

The invention discloses a fly ash filtering device capable of adaptively adjusting the filtering grade, and relates to the technical field of fly ash filtering devices. Comprising a cabin body, an air outlet, a top plate, a dust hopper, a filter bag, a self-adaptive compensation cage frame, a dust discharging device, a support and an air inlet, a buffer piece drives a conversion detection piece to deflect through a buffer rod, the conversion detection piece drives a force transmission sliding head to slide upwards, the force transmission sliding head drives a conversion head to move upwards through a rope, and finally a plurality of knocking rods are driven to deflect and pop out quickly; the bottom of the filter bag is beaten, insufficient impact on the bottom of the filter bag is compensated, and the purpose of cleaning and compensating the bottom end of the filter bag is achieved. The thrust generated by filtered gas is utilized to drive the buffer plate to deflect, the buffer plate converts the thrust to drive the buffer rod to extrude the detection spring, the detection spring extrudes the piezoelectric body to generate an electric signal, and the control system monitors the state of the filter bag in real time according to the change of the electric signal, so that the purpose of dynamically detecting the damage condition of the filter bag is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fly ash filtration devices, and specifically, it is a fly ash filtration device with adaptive adjustment of filtration level. Background Art

[0002] When filtering fly ash in incineration flue gas, a bag filter is usually selected as the fly ash filtration device. The bag filter finely filters the dust-containing gas by means of filter bags, and efficiently removes fine particles through the dual mechanisms of gravity sedimentation and retention by the filter media. Moreover, the recovered dust can be reused, reducing raw material consumption and energy waste, and enhancing the economic benefits and competitiveness of enterprises.

[0003] However, after the existing bag filter operates for a long time, it is necessary to perform self-cleaning on the internal filter bags through pulse waves. However, due to the propagation characteristics of the pulse waves from top to bottom, the upper filter bags are subjected to greater impact force and are easily worn, while the bottom filter bags have unsatisfactory dust cleaning effect due to the consumption during the propagation of the pulse waves. Moreover, when the filter bags that have been used for a long time are damaged, fly ash will flow out, causing secondary pollution to the air, and the existing equipment lacks effective and rapid detection means. Summary of the Invention

[0004] The purpose of the present invention is to provide a fly ash filtration device with adaptive adjustment of filtration level to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A fly ash filtration device with adaptive adjustment of filtration level, including a cabin body. A support is installed at the bottom end of the cabin body. An air inlet is provided on one side of the cabin body. An air outlet is provided at the top end of the cabin body. A hopper is provided at the bottom end of the cabin body. An ash discharging device is installed at the bottom end of the hopper. A top plate is installed inside the cabin body. A number of filter bags are installed on the top plate. An adaptive compensation cage is installed inside the filter bags. A pulse dust cleaning device is installed on the cabin body. A blower is installed on the cabin body.

[0006] The fly ash filtration device is externally connected to a control system, and the control system controls the entire fly ash filtration device. The pulse dust cleaning device consists of a blowpipe, a pulse valve, and an air bag. The position of the nozzle of the blowpipe is directly opposite to the filter bag below. During dust cleaning, the control system opens the pulse valve, and the pulse valve releases the high-pressure gas in the air bag. The high-pressure gas sprays downward from the nozzle of the blowpipe, forming a shock wave that enters the filter bag. The filter bag instantly expands, causing the dust on the surface layer to fall off. The ash discharging device is used to discharge the dust in the hopper.

[0007] During operation, the control system starts the fan. The fan creates a pressure difference inside the chamber. The input pipeline allows the dust-containing gas to enter the chamber from the air inlet, and then it passes upward through the filter bags and is discharged from the air outlet at the top of the chamber. The filter bags filter the fly ash in the dust-containing gas. The control system regularly activates the pulse dust cleaning device, which emits shock waves to clean the filter bags. The dust cleaned off falls into the ash hopper at the bottom of the chamber, and the ash discharging device sends the dust in the ash hopper out. There is a fly ash detection device in the input pipeline, which is used to detect the fly ash content. The control system adjusts the power of the fan according to the fly ash content to achieve the function of self-adaptive adjustment of the filtration level.

[0008] Furthermore, the self-adaptive compensation cage includes a top plate, which is installed on the top board. Several hollow tubes are installed at the bottom end of the top plate. A chassis is installed at the bottom end of the hollow tubes. Several hoop rings are installed on the hollow tubes. A compensation component is installed on the hollow tubes. The compensation component penetrates through the hollow tubes and is rotatably connected to the chassis.

[0009] Furthermore, the compensation component includes a compensation housing and a force-transmitting sliding head. The compensation housing is installed on the hollow tube. A conversion detection part is rotatably installed inside the compensation housing. A buffer part is installed on the conversion detection part. The force-transmitting sliding head is slidably installed inside the hollow tube. The force-transmitting sliding head is meshed and driven with the conversion detection part. A wire rope is installed at the bottom end of the force-transmitting sliding head. A conversion head is installed at the bottom end of the wire rope. The conversion head is slidably connected to the hollow tube. A reset spring is installed between the top end of the conversion head and the hollow tube. A compensation output part is rotatably installed at the bottom end of the hollow tube. The compensation output part is movably connected to the conversion head and is rotatably connected to the chassis.

[0010] The conversion head can only slide up and down inside the hollow tube and cannot rotate.

[0011] Furthermore, conversion teeth are provided on the conversion detection part, and force-transmitting teeth are provided on the force-transmitting sliding head. The conversion teeth and the force-transmitting teeth are meshed and driven. A rotation hole is provided on the conversion detection part. The conversion detection part is rotatably installed inside the compensation housing through the rotation hole. An inner ring is provided on the conversion detection part. The buffer part is rotatably installed on the inner ring. An arc-shaped sliding groove is provided on the conversion detection part. The buffer part is slidably connected to the arc-shaped sliding groove. A one-way deflection groove is provided inside the conversion detection part.

[0012] Furthermore, an elastic sheath is installed on one side of the one-way deflection groove. A piezoelectric body is installed inside the elastic sheath. A detection spring is installed between the elastic sheath and the buffer part.

[0013] The one-way deflection groove is designed in a fan shape. In the normal state, the buffer rod is located on the side of the one-way deflection groove opposite to the elastic protective sleeve and fits with the groove wall of the one-way deflection groove on this side.

[0014] When performing fly ash filtration, when the flue gas filtered by the filter bag moves upward, it will exert a certain thrust on the buffer piece. Under the influence of the thrust, the buffer piece drives the buffer rod to deflect upward along the arc track of the one-way deflection groove. The buffer rod squeezes the detection spring, and after the detection spring is compressed, it squeezes the piezoelectric body in the elastic sheath. The piezoelectric body generates an electrical signal after being compressed. When the filter bag is intact, the electrical signals generated by several piezoelectric bodies are similar. When the filter bag is damaged, a large amount of dusty gas will pour in at the damaged part, causing the thrust on the buffer piece to surge sharply and the deflection amount of the buffer rod to increase, resulting in not only an increase in the intensity of the generated electrical signal, but also a significant difference in the magnitudes between several groups of electrical signals. The control system monitors the state of the filter bag in real time based on the change of the electrical signal, achieving the purpose of dynamically detecting the damage condition of the filter bag. After that, the control system issues an alarm to the staff for shutdown maintenance.

[0015] During the upward deflection of the buffer rod, since the force transmission sliding head is restricted by the upper limit ring and cannot move downward, the conversion detection part engaged with it cannot rotate clockwise, and the conversion detection part remains stationary. When the buffer rod deflects, it drives the arc-shaped sealing plates on both sides to slide in the arc-shaped chute to prevent external dust from entering the inside of the conversion detection part.

[0016] The obliquely arranged buffer piece enables the filtered gas to slide past the buffer piece below. Compared with the horizontal arrangement, it increases the gas permeability and reduces the obstruction to the gas.

[0017] Furthermore, the buffer part includes a buffer rod. A detection spring is installed between the buffer rod and the elastic sheath. Buffer pieces are symmetrically installed on the buffer rod. The buffer pieces are arranged obliquely relative to the horizontal plane. Several buffer pieces form an annular diversion structure. An arc-shaped sealing plate is provided on the buffer rod. The arc-shaped sealing plate is slidably connected with the arc-shaped chute. One end of the buffer rod is installed with an outer ring. The outer ring is rotationally connected with the inner ring. The buffer rod is slidably connected with the one-way deflection groove.

[0018] The buffer piece is obliquely arranged and forms an inclination angle with the horizontal plane.

[0019] When performing filter bag dust cleaning, when the generated shock wave passes through the compensation component located at the top of the adaptive compensation cage, part of the shock wave impacts the buffer part. The buffer piece absorbs the impact force and converts it into a downward deflection. Since part of the impact force is absorbed, the impact on the top filter bag is reduced, thus avoiding the damage of the upper filter bag due to long-term strong impact; and the annular diversion structure composed of several obliquely arranged buffer pieces causes the shock wave to deflect obliquely when passing through, making the shock wave near the filter bag in the upper part impact the filter bag more gently, further protecting the upper filter bag; Further, the compensation output member includes a rotating rod, symmetrically provided with rotating columns on the rotating rod, a knocking rod is installed at the bottom end of the rotating rod, the knocking rod is rotatably connected to the chassis, the rotating rod is movably connected to the conversion head, symmetrically provided with inclined grooves on the conversion head, the rotating column is slidably connected to the inclined groove, a fitting groove is provided on the chassis, and the knocking rod is fitted with the fitting groove.

[0020] The buffer piece drives the buffer rod to synchronously deflect around the central axis of the outer ring. The buffer rod exerts a torque on the wall of the one-way deflection groove, thereby driving the entire conversion detection member to deflect counterclockwise. The conversion detection member drives the force transmission slider to slide upward in the hollow tube through the conversion teeth. The force transmission slider pulls up the conversion head through the wire rope. The conversion head slides upward and compresses the return spring. The inclined groove on the conversion head causes an oblique extrusion on the rotating column when rising. Since the rotating rod is rotatably installed in the rotating groove, the rotating column drives the rotating rod to rotate, and the rotating rod drives the knocking rod to deflect. A plurality of knocking rods quickly deflect and pop out, hitting the bottom of the filter bag, compensating for the insufficient impact on the bottom of the filter bag, and achieving the purpose of cleaning and compensating the bottom end of the filter bag.

[0021] Further, an upper limit ring is provided in the hollow tube, the force transmission slider is located above the upper limit ring, a lower limit ring is provided in the hollow tube, a return spring is installed between the lower limit ring and the conversion head, a bottom ring is provided in the hollow tube, the conversion head is located above the bottom ring, and a rotating groove is provided at the bottom end of the hollow tube, and the rotating rod is rotatably installed in the rotating groove.

[0022] Under normal conditions, the top end of the upper limit ring is in tight contact with the bottom end of the force transmission slider, and the conversion head is in tight contact with the bottom ring.

[0023] After the shock wave dissipates, the return spring rebounds, the conversion head quickly resets downward, and drives the rotating rod to rotate in the reverse direction through the inclined groove. The rotating rod drives the knocking rod to be received in the fitting groove in the chassis. When the conversion head moves downward, it drives the wire rope to descend. Under the action of the wire rope tension and its own gravity, the force transmission slider slides downward and fits with the upper limit ring. The force transmission slider drives the conversion detection member to deflect, and finally realizes the reset of the entire compensation assembly.

[0024] Compared with the prior art, the beneficial effects of the present invention are: 1. The buffer piece absorbs and converts the impact force into a downward deflection, weakening part of the stronger impact force in the upper part, reducing the impact on the top filter bag, thereby avoiding the upper filter bag from being damaged due to long-term strong impact; the buffer piece drives the conversion detection member to deflect through the buffer rod, the conversion detection member drives the force transmission slider to slide upward, the force transmission slider drives the conversion head to move upward through the wire rope, and finally drives a plurality of knocking rods to quickly deflect and pop out, hitting the bottom of the filter bag, compensating for the insufficient impact on the bottom of the filter bag, and achieving the purpose of cleaning and compensating the bottom end of the filter bag.

[0025] 2. Through the obliquely arranged buffer sheets, when the filter bag is cleaned of ash, several buffer sheets form an annular diversion structure, causing the passing shock wave to deflect obliquely, making the shock wave near the filter bag in the upper part impact the cloth bag more gently and further protecting the upper filter bag; when filtering fly ash, the obliquely arranged buffer sheets enable the filtered gas to slide over the buffer sheets below. Compared with the horizontal arrangement, it increases the gas permeability and reduces the resistance to the gas.

[0026] 3. Utilize the thrust generated by the filtered gas to drive the deflection of the buffer sheet. The buffer sheet converts the thrust and drives the buffer rod to squeeze the detection spring. The detection spring squeezes the piezoelectric body to generate an electrical signal. The control system monitors the state of the filter bag in real time according to the change of the electrical signal, achieving the purpose of dynamically detecting the damage condition of the filter bag. Brief Description of the Drawings

[0027] Figure 1 Is the overall three-dimensional view of the fly ash filtering device of the present invention; Figure 2 Is the three-dimensional view of the filter bag and the adaptive compensation cage of the present invention; Figure 3 Is the three-dimensional view of the adaptive compensation cage of the present invention; Figure 4 Is the three-dimensional Figure 1 ; Figure 5 Is the three-dimensional Figure 2 ; Figure 6 Is the three-dimensional view of the buffer member of the present invention; Figure 7 Is the three-dimensional view of the conversion detection member of the present invention; Figure 8 Is of the present invention Figure 5 Partial enlarged view of area A; Figure 9 Is the three-dimensional view of the hollow tube of the present invention; Figure 10 Is the three-dimensional view of the compensation output member of the present invention; Figure 11 Is the three-dimensional view of the adapter of the present invention; Figure 12 Is the three-dimensional view of the chassis of the present invention.

[0028] In the figure: 1. Cabin body; 2. Air outlet; 3. Top plate; 4. Ash hopper; 5. Filter bag; 6. Adaptive compensation cage; 7. Ash discharging device; 8. Support; 9. Air inlet; 61. Hollow tube; 62. Hoop; 63. Chassis; 64. Top disc; 65. Compensation assembly; 651. Buffer; 652. Force transmission slider; 653. Wire rope; 654. Return spring; 655. Adapter; 656. Compensation output part; 657. Compensation housing; 658. Conversion detection part; 6511. Buffer plate; 6512. Buffer rod; 6513. Arc-shaped sealing plate; 6514. Outer ring; 6581. Conversion gear; 6582. Arc-shaped chute; 6583. Rotating hole; 6584. Inner ring; 6585. Detection spring; 6586. Elastic sheath; 6587. Piezoelectric body; 6588. One-way deflection groove; 611. Upper limit ring; 612. Lower limit ring; 613. Bottom ring; 614. Rotating groove; 6521. Force transmission tooth; 6561. Knocking rod; 6562. Rotating rod; 6563. Rotating column; 6551. Inclined groove. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] As Figures 1 - 12 shown, the present invention provides a technical solution for a fly ash filtering device with adaptive adjustment of the filtering level: including a cabin body 1, a support 8 is installed at the bottom end of the cabin body 1, an air inlet 9 is provided on one side of the cabin body 1, an air outlet 2 is provided at the top end of the cabin body 1, an ash hopper 4 is provided at the bottom end of the cabin body 1, an ash discharging device 7 is installed at the bottom end of the ash hopper 4, a top plate 3 is installed inside the cabin body 1, a plurality of filter bags 5 are installed on the top plate 3, an adaptive compensation cage 6 is installed inside the filter bags 5, a pulse cleaning device is installed on the cabin body 1, and a fan is installed on the cabin body 1.

[0031] The fly ash filtering device is externally connected to a control system, and the control system controls the entire fly ash filtering device. The pulse cleaning device is composed of a blowing pipe, a pulse valve and an air bag. The position of the nozzle of the blowing pipe is directly opposite to the filter bag 5 below. During cleaning, the control system opens the pulse valve, and the pulse valve releases the high-pressure gas in the air bag. The high-pressure gas sprays downward from the nozzle of the blowing pipe to form a shock wave and enters the filter bag 5. The filter bag 5 expands instantly, causing the dust on the surface layer to fall off. The ash discharging device 7 is used to discharge the dust in the ash hopper 4.

[0032] The adaptive compensation cage 6 includes a top plate 64, the top plate 64 is installed on the top plate 3, several hollow tubes 61 are installed at the bottom end of the top plate 64, a chassis 63 is installed at the bottom end of the hollow tubes 61, several hoop 62 are installed on the hollow tubes 61, a compensation component 65 is installed on the hollow tubes 61, the compensation component 65 penetrates through the hollow tubes 61 and is rotatably connected to the chassis 63.

[0033] The compensation component 65 includes a compensation housing 657 and a force transmission sliding head 652. The compensation housing 657 is installed on the hollow tube 61. A conversion detection part 658 is rotatably installed in the compensation housing 657. A buffer part 651 is installed on the conversion detection part 658. The force transmission sliding head 652 is slidably installed in the hollow tube 61. The force transmission sliding head 652 is meshed and driven with the conversion detection part 658. A wire rope 653 is installed at the bottom end of the force transmission sliding head 652. A conversion head 655 is installed at the bottom end of the wire rope 653. The conversion head 655 is slidably connected to the hollow tube 61. A return spring 654 is installed between the top end of the conversion head 655 and the hollow tube 61. A compensation output part 656 is rotatably installed at the bottom end of the hollow tube 61. The compensation output part 656 is movably connected to the conversion head 655. The compensation output part 656 is rotatably connected to the chassis 63. The conversion head 655 can only slide up and down in the hollow tube 61 and cannot rotate.

[0034] The conversion detection part 658 is provided with a conversion tooth 6581. The force transmission sliding head 652 is provided with a force transmission tooth 6521. The conversion tooth 6581 is meshed and driven with the force transmission tooth 6521. The conversion detection part 658 is provided with a rotation hole 6583. The conversion detection part 658 is rotatably installed in the compensation housing 657 through the rotation hole 6583. The conversion detection part 658 is provided with an inner ring 6584. The buffer part 651 is rotatably installed on the inner ring 6584. The conversion detection part 658 is provided with an arc-shaped chute 6582. The buffer part 651 is slidably connected to the arc-shaped chute 6582. A one-way deflection groove 6588 is arranged in the conversion detection part 658.

[0035] An elastic sheath 6586 is installed on one side of the one-way deflection groove 6588. A piezoelectric body 6587 is installed in the elastic sheath 6586. A detection spring 6585 is installed between the elastic sheath 6586 and the buffer part 651.

[0036] The one-way deflection groove 6588 adopts a fan-shaped design. In the normal state, the buffer rod 6512 is located on the side of the one-way deflection groove 6588 opposite to the elastic protective sleeve and is attached to the groove wall of the one-way deflection groove 6588 on this side.

[0037] The buffer member 651 includes a buffer rod 6512. A detection spring 6585 is installed between the buffer rod 6512 and the elastic sheath 6586. Buffer pieces 6511 are symmetrically installed on the buffer rod 6512. The buffer pieces 6511 are arranged obliquely relative to the horizontal plane. A plurality of buffer pieces 6511 form an annular diversion structure. An arc-shaped sealing plate 6513 is provided on the buffer rod 6512. The arc-shaped sealing plate 6513 is slidably connected to the arc-shaped chute 6582. One end of the buffer rod 6512 is installed with an outer ring 6514. The outer ring 6514 is rotatably connected to the inner ring 6584. The buffer rod 6512 is slidably connected to the one-way deflection groove 6588. The buffer pieces 6511 are obliquely arranged and form an inclination angle with the horizontal plane.

[0038] The compensation output member 656 includes a rotating rod 6562. Rotating columns 6563 are symmetrically provided on the rotating rod 6562. A knocking rod 6561 is installed at the bottom end of the rotating rod 6562. The knocking rod 6561 is rotatably connected to the chassis 63. The rotating rod 6562 is movably connected to the conversion head 655. Oblique grooves 6551 are symmetrically provided at the center of the conversion head 655. The rotating columns 6563 are slidably connected to the oblique grooves 6551. A fitting groove is provided on the chassis 63. The knocking rod 6561 is fitted into the fitting groove.

[0039] An upper limit ring 611 is provided inside the hollow tube 61. The force-transmitting sliding head 652 is located above the upper limit ring 611. A lower limit ring 612 is provided inside the hollow tube 61. A return spring 654 is installed between the lower limit ring 612 and the conversion head 655. A bottom ring 613 is provided inside the hollow tube 61. The conversion head 655 is located above the bottom ring 613. A rotating groove 614 is provided at the bottom end of the hollow tube 61. The rotating rod 6562 is rotatably installed in the rotating groove 614. In the normal state, the top end of the upper limit ring 611 is in close contact with the bottom end of the force-transmitting sliding head 652, and the conversion head 655 is in close contact with the bottom ring 613.

[0040] The working principle of the present invention: During operation, the control system starts the fan, and the fan creates a pressure difference inside the cabin body 1. The input pipeline introduces the dust-containing gas into the cabin body 1 from the air inlet 9, and then it passes upward through the filter bag 5 and is discharged from the air outlet 2 at the top of the cabin body 1. The filter bag 5 filters the fly ash in the dust-containing gas. The control system regularly activates the pulse dust cleaning device, and the pulse dust cleaning device emits a shock wave to clean the filter bag 5. The dust cleaned off falls into the ash hopper 4 at the bottom of the cabin body 1, and the ash discharging device 7 sends out the dust in the ash hopper 4. A fly ash detection device is provided inside the input pipeline, and the fly ash detection device is used to detect the fly ash content. The control system adjusts the power of the fan according to the fly ash content, achieving the function of self-adaptive adjustment of the filtration level.

[0041] When performing fly ash filtration, when the flue gas filtered by the filter bag 5 moves upward, it will exert a certain thrust on the buffer piece 6511. Under the influence of the thrust, the buffer piece 6511 drives the buffer rod 6512 to deflect upward along the arc track of the one-way deflection groove 6588. The buffer rod 6512 squeezes the detection spring 6585. After being compressed, the detection spring 6585 squeezes the piezoelectric body 6587 in the elastic sheath 6586. The piezoelectric body 6587 generates an electrical signal after being compressed. When the filter bag 5 is intact, the electrical signals generated by several piezoelectric bodies 6587 are similar. When the filter bag 5 is damaged, a large amount of dust-containing gas will pour in through the damaged part, causing the thrust received by the buffer piece 6511 to surge, and the deflection amount of the buffer rod 6512 to increase, resulting in not only an increase in the intensity of the generated electrical signal, but also a significant difference in the magnitudes between several groups of electrical signals. The control system monitors the state of the filter bag 5 in real time based on the change of the electrical signal, so as to achieve the purpose of dynamically detecting the damage condition of the filter bag 5. After that, the control system issues an alarm to the staff for shutdown and maintenance.

[0042] During the upward deflection of the buffer rod 6512, since the force transmission sliding head 652 is restricted by the upper limit ring 611 and cannot move downward, the conversion detection part 658 engaged with it cannot rotate clockwise, and the conversion detection part 658 remains stationary. When the buffer rod 6512 deflects, it drives the arc-shaped sealing plates 6513 on both sides to slide in the arc-shaped chute 6582 to prevent external dust from entering the interior of the conversion detection part 658. The obliquely arranged buffer piece 6511 enables the filtered gas to slide past the buffer piece 6511 below. Compared with the horizontal arrangement, it increases the gas permeability and reduces the obstruction to the gas.

[0043] When cleaning the filter bag 5, when the shock wave generated passes through the compensation component 65 located at the top of the adaptive compensation cage 6, part of the shock wave impacts the buffer part 651. The buffer piece 6511 absorbs the impact force and converts it into a downward deflection. Since part of the impact force is absorbed, the impact on the top filter bag 5 is reduced, thus avoiding the damage of the upper filter bag 5 due to long-term strong impact; and the annular diversion structure composed of several obliquely arranged buffer pieces 6511 causes the shock wave to deflect obliquely when passing through, making the shock wave near the filter bag 5 in the upper part impact the cloth bag more gently, further protecting the upper filter bag 5; The buffer piece 6511 drives the buffer rod 6512 to synchronously deflect around the central axis of the outer ring 6514. The buffer rod 6512 applies torque to the groove wall of the one-way deflection groove 6588, thereby driving the entire conversion detection member 658 to deflect counterclockwise. The conversion detection member drives the force transmission slider 652 to slide upward in the hollow tube 61 through the conversion teeth 6581. The force transmission slider 652 pulls up the conversion head 655 through the wire rope 653. The conversion head 655 slides upward and squeezes the return spring 654. The inclined groove 6551 on the conversion head 655 causes an oblique extrusion on the rotating column 6563 when rising. Since the rotating rod 6562 is rotatably installed in the rotating groove 614, the rotating column 6563 drives the rotating rod 6562 to rotate, and the rotating rod 6562 drives the knocking rod 6561 to deflect. A plurality of knocking rods 6561 quickly deflect and pop out to strike the bottom of the filter bag 5, compensating for the insufficient impact on the bottom of the filter bag 5, so as to achieve the purpose of cleaning and compensating the bottom end of the filter bag 5.

[0044] After the shock wave dissipates, the return spring 654 rebounds, and the conversion head 655 quickly resets downward, and drives the rotating rod 6562 to rotate in the reverse direction through the inclined groove 6551. The rotating rod 6562 drives the knocking rod 6561 to retract into the fitting groove in the chassis 63. When the conversion head moves downward, it drives the wire rope 653 to descend. Under the action of the tension of the wire rope 653 and its own gravity, the force transmission slider 652 slides downward and fits with the upper limit ring 611. The force transmission slider 652 drives the conversion detection member 658 to deflect, and finally realizes the reset of the entire compensation assembly 65.

[0045] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A fly ash filtering device with adaptive adjustment of filtering level, characterized in that: The fly ash filtering device includes a cabin body (1). A bracket (8) is installed at the bottom end of the cabin body (1). An air inlet (9) is provided on one side of the cabin body (1). An air outlet (2) is provided at the top end of the cabin body (1). A ash hopper (4) is provided at the bottom end of the cabin body (1). An ash discharging device (7) is installed at the bottom end of the ash hopper (4). A top plate (3) is installed inside the cabin body (1). A plurality of filter bags (5) are installed on the top plate (3). An adaptive compensation cage (6) is installed inside the filter bag (5). A pulse cleaning device is installed on the cabin body (1). A blower is installed on the cabin body (1).

2. The fly ash filtering device with self - adaptive adjustment of filtering level according to claim 1, characterized in that: The adaptive compensation cage (6) includes a top plate (64). The top plate (64) is installed on the top plate (3). A plurality of hollow tubes (61) are installed at the bottom end of the top plate (64). A chassis (63) is installed at the bottom end of the hollow tube (61). A plurality of hoop rings (62) are installed on the hollow tube (61). A compensation component (65) is installed on the hollow tube (61). The compensation component (65) penetrates through the hollow tube (61) and is rotatably connected to the chassis (63).

3. The fly ash filtering device with self-adaptive adjustment of filtering level according to claim 2, characterized in that: The compensation component (65) includes a compensation housing (657) and a force transmission sliding head (652). The compensation housing (657) is installed on the hollow tube (61). A conversion detection member (658) is rotatably installed inside the compensation housing (657). A buffer member (651) is installed on the conversion detection member (658). The force transmission sliding head (652) is slidably installed inside the hollow tube (61). The force transmission sliding head (652) is meshed and driven with the conversion detection member (658). A wire rope (653) is installed at the bottom end of the force transmission sliding head (652). A conversion head (655) is installed at the bottom end of the wire rope (653). The conversion head (655) is slidably connected to the hollow tube (61). A return spring (654) is installed between the top end of the conversion head (655) and the hollow tube (61). A compensation output member (656) is rotatably installed at the bottom end of the hollow tube (61). The compensation output member (656) is movably connected to the conversion head (655). The compensation output member (656) is rotatably connected to the chassis (63).

4. The fly ash filtering device with self-adaptive adjustment of filtering level according to claim 3, characterized in that: The conversion detection member (658) is provided with conversion teeth (6581). The force transmission sliding head (652) is provided with force transmission teeth (6521). The conversion teeth (6581) are meshed and driven with the force transmission teeth (6521). The conversion detection member (658) is provided with a rotation hole (6583). The conversion detection member (658) is rotatably installed inside the compensation housing (657) through the rotation hole (6583). The conversion detection member (658) is provided with an inner ring (6584). The buffer member (651) is rotatably installed on the inner ring (6584). The conversion detection member (658) is provided with an arc-shaped sliding groove (6582). The buffer member (651) is slidably connected to the arc-shaped sliding groove (6582). A one-way deflection groove (6588) is provided inside the conversion detection member (658).

5. The fly ash filtering device with self - adaptive adjustment of filtering level according to claim 4, wherein: An elastic sheath (6586) is installed on one side of the unidirectional deflection groove (6588), a piezoelectric body (6587) is installed in the elastic sheath (6586), and a detection spring (6585) is installed between the elastic sheath (6586) and the buffer member (651).

6. An ash filtration device with self - adaptive adjustment of filtration level according to claim 5, characterized in that: The buffer member (651) includes a buffer rod (6512), a detection spring (6585) is installed between the buffer rod (6512) and the elastic sleeve (6586), buffer plates (6511) are symmetrically installed on the buffer rod (6512), the buffer plates (6511) are arranged tilted relative to the horizontal plane, and a plurality of the buffer plates (6511) form an annular guide structure, an arc-shaped sealing plate (6513) is provided on the buffer rod (6512), the arc-shaped sealing plate (6513) is slidably connected to the arc-shaped sliding groove (6582), an outer ring (6514) is installed at one end of the buffer rod (6512), the outer ring (6514) is rotatably connected to the inner ring (6584), and the buffer rod (6512) is slidably connected to the unidirectional deflection groove (6588).

7. The fly ash filtering device with self-adaptive adjustment of filtering level according to claim 3, characterized in that: The compensation output member (656) includes a rotating rod (6562), a rotating column (6563) symmetrically provided on the rotating rod (6562), a knocking rod (6561) installed at the bottom end of the rotating rod (6562), the knocking rod (6561) being rotationally connected to the chassis (63), the rotating rod (6562) being movably connected to the conversion head (655), an inclined groove (6551) being centrally symmetrically provided on the conversion head (655), the rotating column (6563) being slidably connected to the inclined groove (6551), an engaging groove being provided on the chassis (63), and the knocking rod (6561) being engaged with the engaging groove.

8. An ash filtration device with self - adaptive adjustment of filtration level according to claim 7, characterized in that: An upper limit ring (611) is provided in the hollow tube (61), the force transmission slide (652) is located above the upper limit ring (611), a lower limit ring (612) is provided in the hollow tube (61), a return spring (654) is installed between the lower limit ring (612) and the conversion head (655), a bottom ring (613) is provided in the hollow tube (61), the conversion head (655) is located above the bottom ring (613), a rotating groove (614) is provided at the bottom end of the hollow tube (61), and the rotating rod (6562) is rotatably installed in the rotating groove (614).

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