Straight-through type metal high-temperature dust remover with filter bag cleaning function

Abstract

The invention discloses a straight-through type metal high-temperature dust remover with a filter bag cleaning function, and relates to the technical field of dust removal, the straight-through type metal high-temperature dust remover comprises a frame, a shell, a dust discharging device, a reverse blowing device and a filtering mechanism, the shell is fixedly connected with the frame, the dust discharging device is fixedly connected with the shell, the reverse blowing device is fixedly connected with the shell, and the filtering mechanism is fixedly connected with the shell. The reverse blowing device is used for blowing compressed air to the filtering mechanism, and the filtering mechanism is fixedly connected with the shell and used for adsorbing dust; the frame is used for providing stable support for all the mechanisms, the filtering mechanism is located in a closed space in the shell and can remove dust in smoke, the reverse blowing device blows off the dust adsorbed by the filtering mechanism through compressed air, and the dust falls into the dust discharging device under the action of gravity.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, in particular to a straight-through metal high-temperature dust collector with a filter bag cleaning function. Background Art

[0002] The straight-through bag filter adopts a straight-through structure, allowing the flue gas to flow directly inside the dust collector, reducing resistance and energy consumption, and improving dust removal efficiency. The main body of the dust collector is made of high-temperature resistant metal material, which can withstand the treatment of high-temperature flue gas and ensure the long-term stable operation of the equipment; the flue gas enters the filter bag area, and the fine particles are captured through the filtering effect of the filter bag material, and the clean gas is discharged through the filter bag; when the filter bag accumulates a certain amount of particles, the cleaning system starts to clean the filter bag. This can be done through pulse spraying, vibration, etc.

[0003] However, when the existing bag dust collector is performing pulse jet cleaning, the jet airflow at various locations is consistent. During the use of the bag dust collector, the airflow inside the dust collector is chaotic, which causes the dust adsorbed on the filter bag to be unevenly distributed. The consistency of dust removal cannot be guaranteed by the jet airflow in the vertical direction alone. Summary of the invention

[0004] The object of the present invention is to provide a straight-through high-temperature metal dust collector with a filter bag cleaning function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a straight-through metal high-temperature dust collector includes a frame, a shell, an ash unloading device, a back-blowing device and a filtering mechanism, the shell is tightly connected to the frame, the ash unloading device is tightly connected to the shell, the back-blowing device is tightly connected to the shell, the back-blowing device is used to spray compressed air to the filtering mechanism, the filtering mechanism is tightly connected to the shell, and the filtering mechanism is used to absorb dust.

[0006] The frame is used to provide stable support for each mechanism. The filter mechanism is located in the enclosed space inside the shell. The filter mechanism can remove dust from the flue gas. The back-blowing device uses compressed air to blow off the dust adsorbed by the filter mechanism, and the dust falls into the dust removal device under the action of gravity.

[0007] Furthermore, an upper box body, a middle box body and an ash hopper are provided in the shell, a smoke inlet is provided on one side of the middle box body, a smoke outlet is provided on one side of the upper box body, a flower plate is provided between the upper box body and the middle box body, a filter mechanism is fastened to the flower plate, and several filter mechanisms are arranged on the flower plate.

[0008] The metal bag dust collector of the present application adopts a straight-through method. The design of the straight-through air intake method ensures that the air intake unevenness of each bag chamber is below 3%. The flower plate is used to separate the upper box body and the middle box body, and provide an installation basis for the filtering mechanism. The flue gas enters the middle box body from the flue gas inlet, and after being processed by the filtering mechanism, the clean gas flows into the upper box body and is discharged from the flue gas outlet; when performing the cleaning process, the backflush device sprays compressed air to the filtering mechanism, blows the adsorbed dust onto the ash hopper, and then falls into the ash unloading device through the guidance of the ash hopper.

[0009] Furthermore, the filtering mechanism includes a connecting seat, a bellows and a bracket. The connecting seat is fastened to the flower plate, the upper end of the bellows is fastened to the connecting seat, the lower end of the bellows is fastened to the bracket, a filter bag is sleeved on the bracket, and a detection mechanism and a guide mechanism are provided in the connecting seat. The detection mechanism is used to detect the distribution of dust on the filter bag, and the guide mechanism is used to directional guide the compressed air.

[0010] However, when the existing bag dust collector is performing pulse jet cleaning treatment, the jet airflow at various locations is consistent, while during the use of the bag dust collector, the airflow inside the dust collector is chaotic, which leads to uneven distribution of dust adsorbed on the filter bag. The consistency of dust removal cannot be guaranteed by only relying on the vertical jet airflow; the connecting seat is used to fix the filter mechanism on the flower plate, and the bracket and the connecting seat are connected by a movable bellows. In this way, when the dust adsorbed on the filter bag is unevenly distributed, the bracket will deviate to the side with more dust under the influence of the gravity of the dust adsorbed on the filter bag. The detection mechanism detects this offset, and the distribution of dust on the filter bag can be determined. The compressed air is guided to the area with more dust distribution through the guide mechanism, and the dust is removed at a fixed point, thereby improving the cleaning effect of the filter bag.

[0011] Furthermore, the detection mechanism includes a fixed ball, a swing rod, an arc-shaped slider, an arc spring, a varistor and a steel wire rope. The fixed ball is provided with an arc groove and a support rod, which are tightly connected to the support rod connecting seat. There are two groups of swing rods, and the two groups of swing rods are cross-arranged on the fixed ball. An arc section is provided in the middle of the swing rod, and the arc section is slidably connected to the fixed ball. The arc slider is tightly connected to the swing rod, and the arc slider is slidably connected to the arc groove. The varistor is tightly connected to the inner wall of the arc groove. The varistor is located at both ends of the arc groove. The varistor is externally connected to the control system, one end of the arc spring is tightly connected to the arc slider, and the other end of the arc spring is tightly connected to the detection end of the varistor. The arc spring is located on both sides of the arc slider, one end of the steel wire rope is hinged to the end of the swing rod away from the fixed ball, and the other end of the steel wire rope is hinged to the bracket.

[0012] The fixed ball is located at the center of the connecting seat and is fixed on the connecting seat by a support rod. The filter bag is divided into four areas by two groups of swing rods arranged in a cross shape on the fixed ball. Because the arc section in the middle of the swing rod can slide along the fixed ball, and the swing rod and the bracket are hinged together by a wire rope, when the dust on the filter bag is unevenly distributed, the swing rod plays a role similar to a lever and will deflect to the side with more dust, thereby driving the arc slider to deflect to one side along the arc groove. The arc spring on this side is compressed, and the varistor on the same side is subjected to a certain pressure. The greater the pressure on the varistor, the smaller the resistance. The distribution of dust can be determined by detecting the change in the resistance of the varistor through the control system. The smaller the resistance of the varistor, the more dust is distributed on the filter bag, which means that automatic judgment of the distribution of dust on the filter bag is achieved.

[0013] Furthermore, the guide mechanism includes a guide block, a connecting pipe, a fixed disk, a driving motor, a rotating disk and an air distribution disk. The guide block is tightly connected to the connecting seat, an inlet air flow channel is arranged in the guide block, the fixed disk is tightly connected to the bracket, a connecting chamber and an annular groove are arranged in the fixed disk, one end of the connecting pipe is connected to the inlet air flow channel, and the other end of the connecting pipe is connected to the connecting chamber, the driving motor is tightly connected to the fixed disk, the output end of the driving motor is transmission-connected to the rotating disk, the driving motor is electrically connected to the control system, the rotating disk is rotationally connected to the annular groove, the air distribution disk is tightly connected to the fixed disk, and a guide column is arranged at the lower end of the fixed disk, and the guide column is used to guide the airflow to the filter bag.

[0014] When the jet airflow passes through the guide block, it will be divided into two parts. One part flows through the outside of the guide block and flows vertically to the filter bag, and the other part flows into the inlet air duct and flows into the connecting chamber in the fixed disk along the connecting pipe. The rotating disk is used to divide the airflow into the air distribution disk, and the air distribution disk guides the airflow into the guide column. The guide column can make the airflow impact the filter bag laterally to remove the dust on the filter bag; the drive motor is used to drive the rotating disk to rotate along the annular slide groove, so as to guide the airflow into the corresponding position of the air distribution disk.

[0015] Furthermore, an opening and a tooth surface are provided on the rotating disk, the opening is connected to the connecting chamber, the tooth surface is drivingly connected to the output end of the driving motor, four through holes are evenly provided on the air distribution disk, the four through holes match the positions of the swing rod, and four fan-shaped grooves are provided on the guide column, the four fan-shaped grooves are respectively connected to the through holes, and the air outlet of the fan-shaped groove faces the filter bag; When dust is removed: the opening is connected to the through hole.

[0016] Because the side with smaller resistance of varistor has more dust distributed on the filter bag, the working time of the driving motor is controlled by the control system. Under the cooperative transmission of the tooth surface on the rotating disk and the driving motor, the rotating disk can be controlled to rotate at a fixed angle, so that the opening on the rotating disk is rotated to the through hole at the corresponding position on the side with more dust, so that the compressed gas in the connecting chamber enters the fan-shaped groove of the corresponding area through the opening and the through hole in turn, and is then discharged through the air outlet arranged on the side of the guide column, so that the compressed gas laterally impacts the filter bag at the corresponding position, and the area with more dust on the filter bag is cleaned at a fixed point; and the larger the overlapping area between the opening and the through hole, the greater the air flow inflow, and the smaller the resistance of the varistor detected by the control system, the greater the dust weight on this side of the filter bag, and the control system correspondingly prolongs the working time of the driving motor to increase the overlapping area between the opening and the through hole, so as to increase the air intake in the fan-shaped groove of the corresponding area, that is, it realizes the automatic adjustment of the air intake according to the weight of the dust on the filter bag.

[0017] Furthermore, the back-blowing device includes an air bag, a pulse valve and a blow pipe, the air bag is tightly connected to the shell, the pulse valve is connected to the air bag, the blow pipe is connected to the air bag, and the air outlet of the blow pipe faces the filtering mechanism.

[0018] The air bag is used to store compressed gas, and the pulse valve is used to control the quantitative flow of compressed gas in the air bag into the injection pipe, so as to clean the filter mechanism.

[0019] Furthermore, a plurality of guide plates are provided at one end of the middle box body close to the smoke inlet.

[0020] The guide plate adopts a horizontal guide method to keep the airflow inside the dust collector flowing in the horizontal direction as much as possible.

[0021] Furthermore, the guide plates are arranged in a stepped manner.

[0022] The stepped arrangement makes the airflow distribution in each area more uniform.

[0023] Furthermore, the filter bag is made of high temperature resistant material.

[0024] In order to adapt to the high temperature environment during use, the filter bag 54 is made of high temperature resistant material.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 1. The filter bag is divided into four areas by two sets of swinging rods arranged crosswise on the fixed ball, and the swinging rod and the bracket are hinged together by steel wire ropes. When the dust on the filter bag is unevenly distributed, the swinging rod plays a role similar to a lever and deflects to the side with more dust, thereby driving the arc-shaped slider to deflect to one side along the arc-shaped groove. The arc spring on this side is compressed, and the varistor on the same side is subjected to a certain pressure. The distribution of dust can be determined by detecting the change in the resistance value of the varistor through the control system. The smaller the resistance value of the varistor is, the more dust is distributed on the filter bag, which means that the distribution of dust on the filter bag is automatically determined.

[0026] 2. The working time of the driving motor is controlled by the control system. Under the cooperative transmission of the tooth surface on the rotating disk and the driving motor, the rotating disk can be controlled to rotate at a fixed angle, so that the opening on the rotating disk is rotated to the through hole at the corresponding position on the side with more dust, so that the compressed gas in the connecting chamber enters the fan-shaped groove in the corresponding area through the opening and the through hole in turn, and is then discharged through the air outlet arranged on the side of the guide column, so that the compressed gas laterally impacts the filter bag at the corresponding position, and the area with more dust on the filter bag is cleaned at a fixed point.

[0027] 3. The control system detects that the smaller the resistance of the varistor is, the heavier the dust weight is on this side of the filter bag. By extending the working time of the drive motor accordingly, the control system can increase the overlapping area between the opening and the through hole, thereby increasing the air intake in the fan-shaped groove in the corresponding area. In other words, the air intake volume is automatically adjusted according to the weight of the dust on the filter bag, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the airflow direction of the present invention; Figure 3 It is a schematic diagram of the filtering mechanism of the present invention; Figure 4 It is a partial cross-sectional view of the filtering mechanism; Figure 5 is a schematic diagram of the detection mechanism of the present invention; Figure 6 for Figure 5 A local enlarged view of point A; Figure 7 It is a partial cross-sectional view of the flow guiding mechanism; Figure 8 for Figure 7 A partial enlarged view of point B; Fig. 9 It is a structural schematic diagram of a rotating disk; Fig.10 This is a schematic diagram of the structure of the guide column.

[0029] In the figure: 1-frame, 2-shell, 21-upper box, 22-middle box, 23-ash hopper, 24-smoke inlet, 25-smoke outlet, 26-flower plate, 27-guide plate, 3-ash unloading device, 4-backblowing device, 41-air bag, 42-pulse valve, 43-blow pipe, 5-filter mechanism, 51-connecting seat, 52-corrugated pipe, 53-bracket, 54-filter bag, 6-detection mechanism, 61-fixed ball, 611-arc groove, 612-support rod , 62-swing rod, 621-arc segment, 63-arc slider, 64-arc spring, 65-varistor, 66-wire rope, 7-guide mechanism, 71-guide block, 711-intake air channel, 72-connecting pipe, 73-fixed disk, 731-connecting chamber, 732-annular slide groove, 74-drive motor, 75-rotating disk, 751-opening, 752-tooth surface, 76-gas distribution disk, 761-through hole, 77-guide column, 771-fan-shaped groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example: Figure 1-Figure 10 As shown, the present invention provides a technical solution of a straight-through metal high-temperature dust collector with a filter bag cleaning function. The straight-through metal high-temperature dust collector includes a frame 1, a shell 2, an ash unloading device 3, a back-blowing device 4 and a filtering mechanism 5. The shell 2 is tightly connected to the frame 1, the ash unloading device 3 is tightly connected to the shell 2, the back-blowing device 4 is tightly connected to the shell 2, the back-blowing device 4 is used to spray compressed air to the filtering mechanism 5, the filtering mechanism 5 is tightly connected to the shell 2, and the filtering mechanism 5 is used to absorb dust.

[0032] The frame 1 is used to provide stable support for each mechanism. The filter mechanism 5 is located in the enclosed space inside the shell 2. The filter mechanism 5 can remove dust in the flue gas. The backblowing device 4 uses compressed air to blow off the dust adsorbed by the filter mechanism 5, and the dust falls into the dust unloading device 3 under the action of gravity.

[0033] An upper box body 21, a middle box body 22 and an ash hopper 23 are provided in the shell 2. A smoke inlet 24 is provided on one side of the middle box body 22, and a smoke outlet 25 is provided on one side of the upper box body 21. A flower plate 26 is provided between the upper box body 21 and the middle box body 22. The filter mechanism 5 is fastened to the flower plate 26, and a plurality of filter mechanisms 5 are arranged on the flower plate 26.

[0034] The metal bag dust collector of the present application adopts a straight-through method. The design of the straight-through air intake method ensures that the air intake unevenness of each bag chamber is below 3%. The flower plate 26 is used to separate the upper box body 21 and the middle box body 22, and provide an installation basis for the filter mechanism 5. The flue gas enters the middle box body 22 from the flue gas inlet 24, and then after being processed by the filter mechanism 5, the clean gas flows into the upper box body 21 and is discharged from the flue gas outlet 25; when performing the cleaning process, the backblowing device 4 sprays compressed air to the filter mechanism 5, blows the adsorbed dust onto the ash hopper 23, and then falls into the ash unloading device 3 through the guidance of the ash hopper 23.

[0035] The filtering mechanism 5 includes a connecting seat 51, a bellows 52 and a bracket 53. The connecting seat 51 is tightly connected to the flower plate 26, the upper end of the bellows 52 is tightly connected to the connecting seat 51, and the lower end of the bellows 52 is tightly connected to the bracket 53. A filter bag 54 is sleeved on the bracket 53. A detection mechanism 6 and a guide mechanism 7 are arranged in the connecting seat 51. The detection mechanism 6 is used to detect the distribution of dust on the filter bag 54, and the guide mechanism 7 is used to directional guide the compressed air.

[0036] However, when the existing bag dust collector is performing pulse jet cleaning, the jet airflow at various locations is consistent. During the use of the bag dust collector, the airflow inside the dust collector is chaotic, which leads to uneven distribution of dust adsorbed on the filter bag. The consistency of dust removal cannot be guaranteed by the vertical jet airflow alone. The connecting seat 51 is used to fix the filter mechanism 5 on the flower plate 26, and the bracket 53 and the connecting seat 51 are connected by a movable bellows 52. In this way, when the dust adsorbed on the filter bag 54 is unevenly distributed, the bracket 53 will be affected by the gravity of the dust adsorbed on the filter bag 54. The bracket 53 will deviate to the side with more dust under the influence of the gravity of the dust adsorbed on the filter bag 54. The detection mechanism 6 detects this deviation, and the distribution of dust on the filter bag 54 can be determined. The compressed air is guided to the area with more dust distribution through the guide mechanism 7, and the dust is removed at a fixed point, thereby improving the cleaning effect of the filter bag 54.

[0037] The detection mechanism 6 includes a fixed ball 61, a swing rod 62, an arc-shaped slider 63, an arc spring 64, a varistor 65 and a wire rope 66. The fixed ball 61 is provided with an arc groove 611 and a support rod 612, and the support rod 612 is tightly connected to the connection seat 51. The swing rod 62 is provided with two groups, and the two groups of swing rods 62 are arranged crosswise on the fixed ball 61. An arc segment 621 is provided in the middle of the swing rod 62, and the arc segment 621 is slidably connected to the fixed ball 61. The arc slider 63 is tightly connected to the swing rod 62. The arc slider 63 It is slidingly connected to the arc groove 611, the varistor 65 is tightly connected to the inner wall of the arc groove 611, the varistor 65 is located at both ends of the arc groove 611, the varistor 65 is externally connected to the control system, one end of the arc spring 64 is tightly connected to the arc slider 63, the other end of the arc spring 64 is tightly connected to the detection end of the varistor 65, the arc spring 64 is located on both sides of the arc slider 63, one end of the wire rope 66 is hinged to the end of the swing rod 62 away from the fixed ball 61, and the other end of the wire rope 66 is hinged to the bracket 53.

[0038] The fixed ball 61 is located at the center of the connecting seat 51 and is fixed on the connecting seat 51 by a support rod 612. The filter bag 54 is divided into four areas by two groups of swing rods 62 arranged in a cross shape on the fixed ball 61. Because the arc section 621 in the middle of the swing rod 62 can slide along the fixed ball 61, and the swing rod 62 and the bracket 53 are hinged together by a wire rope 66, when the dust on the filter bag 54 is unevenly distributed, the swing rod 62 plays a role similar to a lever and will deflect to the side with more dust, thereby driving the arc slider 63 to deflect to one side along the arc groove 611. The arc spring 64 on this side is compressed, and the varistor 65 on the same side is subjected to a certain pressure. The greater the pressure on the varistor 65, the smaller the resistance. The distribution of dust can be determined by detecting the change in the resistance of the varistor 65 by the control system. The smaller the resistance of the varistor 65, the more dust is distributed on the filter bag 54, that is, the automatic judgment of the distribution of dust on the filter bag 54 is achieved.

[0039] The guide mechanism 7 includes a guide block 71, a connecting pipe 72, a fixed disk 73, a driving motor 74, a rotating disk 75 and an air distribution disk 76. The guide block 71 is tightly connected to the connecting seat 51, an inlet air duct 711 is arranged in the guide block 71, the fixed disk 73 is tightly connected to the bracket 53, a connecting chamber 731 and an annular groove 732 are arranged in the fixed disk 73, one end of the connecting pipe 72 is connected to the inlet air duct 711, and the other end of the connecting pipe 72 is connected to the connecting chamber 731, the driving motor 74 is tightly connected to the fixed disk 73, the output end of the driving motor 74 is transmission-connected to the rotating disk 75, the driving motor 74 is electrically connected to the control system, the rotating disk 75 is rotationally connected to the annular groove 732, the air distribution disk 76 is tightly connected to the fixed disk 73, and a guide column 77 is arranged at the lower end of the fixed disk 73, and the guide column 77 is used to guide the airflow to the filter bag 54.

[0040] When the jet airflow passes through the guide block 71, it will be divided into two parts. One part flows through the outside of the guide block 71 and flows vertically to the filter bag 54, and the other part flows into the inlet air duct 711 and flows along the connecting pipe 72 into the connecting chamber 731 in the fixed disk 73. The rotating disk 75 is used to divide the airflow into the air distribution disk 76, and the air distribution disk 76 guides the airflow into the guide column 77. The guide column 77 can make the airflow impact the filter bag 54 laterally, so as to remove the dust on the filter bag 54 at a fixed point; the driving motor 74 is used to drive the rotating disk 75 to rotate along the annular groove 732, so as to direct the airflow into the air distribution disk 76 at the corresponding position.

[0041] The rotating disk 75 is provided with an opening 751 and a tooth surface 752. The opening 751 is communicated with the communication chamber 731. The tooth surface 752 is drivingly connected with the output end of the driving motor 74. The air distribution disk 76 is evenly provided with four through holes 761. The four through holes 761 match the positions of the swing rod 62. The guide column 77 is provided with four fan-shaped grooves 771. The four fan-shaped grooves 771 are respectively communicated with the through holes 761. The air outlet of the fan-shaped groove 771 faces the filter bag 54. During dust removal: the opening 751 is connected to the through hole 761 .

[0042] Because the side with smaller resistance of varistor 65 has more dust distributed on filter bag 54, the working time of driving motor 74 is controlled by control system, and the rotating disk 75 can be controlled to rotate at a fixed angle under the cooperation transmission of tooth surface 752 on rotating disk 75 and driving motor 74, so that opening 751 on rotating disk 75 is rotated to the through hole 761 at the corresponding position of the side with more dust, so that the compressed gas in connecting chamber 731 enters into fan-shaped groove 771 of corresponding area through opening 751 and through hole 761 in turn, and then is discharged through the gas outlet arranged on the side of guide column 77, so that the compressed gas is horizontally discharged. The filter bag 54 impacting the corresponding position is cleaned at the dusty area on the filter bag 54; and the larger the overlapping area between the opening 751 and the through hole 761, the greater the air flow inflow, and the control system detects that the smaller the resistance of the varistor 65, the heavier the dust weight on this side of the filter bag 54. By extending the working time of the drive motor 74 accordingly by the control system, the overlapping area between the opening 751 and the through hole 761 is increased, and the air intake in the fan-shaped groove 771 in the corresponding area can be increased, that is, the air intake volume is automatically adjusted according to the weight of the dust on the filter bag 54.

[0043] The back-blowing device 4 includes an air bag 41 , a pulse valve 42 and a blowing pipe 43 . The air bag 41 is firmly connected to the shell 2 , the pulse valve 42 is in communication with the air bag 41 , the blowing pipe 43 is in communication with the air bag 41 , and the air outlet of the blowing pipe 43 faces the filtering mechanism 5 .

[0044] The air bag 41 is used to store compressed gas, and the pulse valve 42 is used to control the compressed gas in the air bag 41 to flow into the injection pipe 43 in a quantitative manner, so as to clean the filter mechanism 5.

[0045] A plurality of guide plates 27 are provided at one end of the middle box body 22 near the smoke inlet 24 .

[0046] The guide plate 27 adopts a horizontal guide mode to keep the airflow inside the dust collector flowing in the horizontal direction as much as possible.

[0047] The guide plates 27 are arranged in a stepped manner.

[0048] The stepped arrangement makes the airflow distribution in each area more uniform.

[0049] The filter bag 54 is made of high temperature resistant material.

[0050] In order to adapt to the high temperature environment during use, the filter bag 54 is made of high temperature resistant material.

[0051] Working principle of the present invention: when the dust on the filter bag 54 is unevenly distributed, the swing rod 62 plays a role similar to a lever and will deflect to the side with more dust, thereby driving the arc-shaped slider 63 to deflect to one side along the arc-shaped groove 611, and the arc-shaped spring 64 on this side is compressed, and the piezoresistor 65 on the same side is subjected to a certain pressure. The greater the pressure on the piezoresistor 65, the smaller the resistance. The distribution of dust can be determined by detecting the change in the resistance of the piezoresistor 65 through the control system. The smaller the resistance of the piezoresistor 65 is, the more dust is distributed on the filter bag 54, and the automatic determination of the distribution of dust on the filter bag 54 is achieved. The working time of the drive motor 74 is controlled by the control system, and the rotating disk 75 can be controlled to rotate a fixed angle under the cooperative transmission of the tooth surface 752 on the rotating disk 75 and the drive motor 74, so that the opening 751 on the rotating disk 75 is rotated The compressed gas in the connecting chamber 731 passes through the opening 751 and the through hole 761 in turn into the fan-shaped groove 771 in the corresponding area, and is then discharged through the air outlet arranged on the side of the guide column 77, so that the compressed gas laterally impacts the filter bag 54 at the corresponding position, and the area with more dust on the filter bag 54 is cleaned at a fixed point; and the larger the overlapping area between the opening 751 and the through hole 761, the greater the air flow inflow, and the smaller the resistance value of the varistor 65 detected by the control system, the greater the dust weight on this side of the filter bag 54, and the control system extends the working time of the driving motor 74 accordingly to increase the overlapping area between the opening 751 and the through hole 761, so as to increase the air intake volume in the fan-shaped groove 771 in the corresponding area, that is, it is realized that the air intake volume is automatically adjusted according to the weight of the dust on the filter bag 54.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A straight-through high-temperature metal dust collector with filter bag cleaning function, characterized in that: The straight-through metal high-temperature dust collector comprises a frame (1), a shell (2), an ash removal device (3), a back-blowing device (4) and a filtering mechanism (5); the shell (2) is tightly connected to the frame (1); the ash removal device (3) is tightly connected to the shell (2); the back-blowing device (4) is tightly connected to the shell (2); the back-blowing device (4) is used to spray compressed air toward the filtering mechanism (5); the filtering mechanism (5) is tightly connected to the shell (2); and the filtering mechanism (5) is used to absorb dust.

2. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 1, characterized in that: An upper box body (21), a middle box body (22) and an ash hopper (23) are provided in the shell (2); a smoke inlet (24) is provided on one side of the middle box body (22); a smoke outlet (25) is provided on one side of the upper box body (21); a flower plate (26) is provided between the upper box body (21) and the middle box body (22); the filter mechanism (5) is fastened to the flower plate (26); and a plurality of filter mechanisms (5) are arranged on the flower plate (26).

3. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 2, characterized in that: The filtering mechanism (5) comprises a connecting seat (51), a bellows (52) and a bracket (53); the connecting seat (51) is tightly connected to the flower plate (26); the upper end of the bellows (52) is tightly connected to the connecting seat (51); the lower end of the bellows (52) is tightly connected to the bracket (53); a filter bag (54) is sleeved on the bracket (53); a detection mechanism (6) and a flow guiding mechanism (7) are arranged in the connecting seat (51); the detection mechanism (6) is used to detect the distribution of dust on the filter bag (54); and the flow guiding mechanism (7) is used to directional guide the compressed air.

4. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 3, characterized in that: The detection mechanism (6) comprises a fixed ball (61), a swing rod (62), an arc-shaped slider (63), an arc-shaped spring (64), a varistor (65) and a steel wire rope (66); the fixed ball (61) is provided with an arc-shaped groove (611) and a support rod (612); the support rod (612) is tightly connected to the connection seat (51); the swing rod (62) is provided with two groups; the two groups of swing rods (62) are arranged on the fixed ball (61) in a cross-shaped manner; an arc-shaped segment (621) is provided in the middle of the swing rod (62); the arc-shaped segment (621) is slidably connected to the fixed ball (61); the arc-shaped slider (63) is tightly connected to the swing rod (62); The arc-shaped slider (63) is slidably connected to the arc-shaped groove (611), the varistor (65) is tightly connected to the inner wall of the arc-shaped groove (611), the varistor (65) is located at both ends of the arc-shaped groove (611), the varistor (65) is externally connected to the control system, one end of the arc-shaped spring (64) is tightly connected to the arc-shaped slider (63), the other end of the arc-shaped spring (64) is tightly connected to the detection end of the varistor (65), the arc-shaped spring (64) is located on both sides of the arc-shaped slider (63), one end of the steel wire rope (66) is hinged to one end of the swing rod (62) away from the fixed ball (61), and the other end of the steel wire rope (66) is hinged to the bracket (53).

5. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 4, characterized in that: The flow guide mechanism (7) comprises a flow guide block (71), a connecting pipe (72), a fixed disk (73), a driving motor (74), a rotating disk (75) and a gas distribution disk (76); the flow guide block (71) is tightly connected to the connecting seat (51); an inlet flow passage (711) is provided in the flow guide block (71); the fixed disk (73) is tightly connected to the bracket (53); a connecting chamber (731) and an annular sliding groove (732) are provided in the fixed disk (73); one end of the connecting pipe (72) is connected to the inlet flow passage (711); The other end of the connecting pipe (72) is connected to the connecting chamber (731), the driving motor (74) is tightly connected to the fixed disk (73), the output end of the driving motor (74) is drivingly connected to the rotating disk (75), the driving motor (74) is electrically connected to the control system, the rotating disk (75) is rotatably connected to the annular slide groove (732), the air distribution disk (76) is tightly connected to the fixed disk (73), and a guide column (77) is provided at the lower end of the fixed disk (73), and the guide column (77) is used to guide the airflow to the filter bag (54).

6. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 5, characterized in that: The rotating disk (75) is provided with an opening (751) and a tooth surface (752), the opening (751) is in communication with the communication chamber (731), the tooth surface (752) is in driving connection with the output end of the driving motor (74), the gas distribution disk (76) is evenly provided with four through holes (761), the four through holes (761) match the positions of the swing rod (62), the guide column (77) is provided with four fan-shaped grooves (771), the four fan-shaped grooves (771) are respectively in communication with the through holes (761), and the air outlets of the fan-shaped grooves (771) face the filter bag (54); During dust removal: the opening (751) is in communication with the through hole (761).

7. The straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 1 is characterized in that: The back-blowing device (4) comprises an air bag (41), a pulse valve (42) and a blow pipe (43); the air bag (41) is firmly connected to the housing (2); the pulse valve (42) is in communication with the air bag (41); the blow pipe (43) is in communication with the air bag (41); and the air outlet of the blow pipe (43) faces the filtering mechanism (5).

8. The straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 2 is characterized in that: A plurality of guide plates (27) are provided at one end of the middle box body (22) close to the smoke inlet (24).

9. A straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 8, characterized in that: The guide plates (27) are arranged in a stepped manner.

10. The straight-through high-temperature metal dust collector with filter bag cleaning function according to claim 3, characterized in that: The filter bag (54) is made of a high temperature resistant material.

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