Waste gas treatment device for steam boiler

Abstract

The invention discloses a waste gas treatment device for a steam boiler, and relates to the technical field of waste gas treatment.The waste gas treatment device comprises a purification bin, a gas inlet pipe is arranged at the bottom of the purification bin, a first exhaust pipe is arranged on one side of the upper end of the purification bin, a filter plate is fixedly installed in the purification bin, and a sleeve is fixedly installed at the bottom of an inner cavity of the purification bin; a cleaning assembly for cleaning the filter plate is arranged at the bottom of the sleeve, and a spraying assembly is arranged below the filter plate. According to the waste gas treatment device for the steam boiler, a cleaning plate and a rotating disc are driven by a servo motor to rotate, particulate matter adhering to the bottom surface of a filtering plate is effectively removed, in addition, a second inclined block and a cleaning rod are driven by the rotating disc to move, filtering holes of the filtering plate can be thoroughly cleaned, blockage is avoided, the filtering effect is guaranteed, and the practicability is high. And through cooperation of a first inclined block and a knocking rod, knocking vibration cleaning of the fixing frame, the arc plate, the cleaning rod and other components is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for a steam boiler. Background Art

[0002] During the operation of steam boilers, a large amount of exhaust gas will be generated. These exhaust gases often contain a variety of harmful substances, such as particulate matter, dust, harmful gases, etc. If they are directly discharged into the atmosphere, they will cause serious pollution to the environment. Therefore, it is particularly important to effectively treat the exhaust gas generated by steam boilers.

[0003] At present, there is an exhaust gas treatment device for steam boilers on the market. The device mainly filters the exhaust gas through a filter plate to remove particles and dust therein. In this prior art, the filter plate plays a key role, but as the use time increases, a large amount of particles tend to stick to the bottom surface of the filter plate, and the filter holes may also be gradually blocked due to long-term filtration, resulting in a decrease in the filtering effect. In order to deal with this problem, the prior art usually adopts a manual cleaning method, but this method is not only inefficient, but also difficult to ensure the cleaning effect;

[0004] In addition, the waste gas treatment device in the prior art has another significant defect, that is, the treatment of the absorbent is not perfect. During the waste gas treatment process, the absorbent is responsible for absorbing harmful gases in the waste gas, but as the absorption time increases, a large amount of moisture containing harmful gases will accumulate inside the absorbent. If it is not discharged in time, the absorbent will be saturated and unable to continue to absorb new harmful gases, thereby resulting in a decrease in the treatment efficiency of the entire waste gas treatment system. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an exhaust gas treatment device for a steam boiler, which solves the technical problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an exhaust gas treatment device for a steam boiler, comprising a purification chamber, an air inlet pipe is arranged at the bottom of the purification chamber, a first exhaust pipe is arranged at one side of the upper end of the purification chamber, a filter plate is fixedly installed inside the purification chamber, a sleeve is fixedly installed at the bottom of the inner cavity of the purification chamber, a cleaning component for cleaning the filter plate is arranged at the bottom of the sleeve, and a spray component is arranged below the filter plate;

[0007] The cleaning component includes a servo motor fixedly installed in the inner cavity of the sleeve, the output end of the servo motor is fixedly connected to a driving rod, the bottom end of the driving rod extends downward through the filter plate, and is fixedly connected to a cleaning plate for cleaning the bottom surface of the filter plate, the outer wall of the driving rod is fixedly connected to a rotating disk, a second inclined block is arranged in a circular array at the bottom of the rotating disk, a fixed frame is arranged below the rotating disk, a convex rod is arranged in a circular array on the top of the fixed frame, and the positions of the convex rod and the second inclined block correspond to each other, an arc plate is arranged on the fixed frame, and a cleaning rod for cleaning the filter holes of the filter plate is fixedly connected to the bottom of the arc plate.

[0008] As a further preferred embodiment of the present technical solution, a slide rod fixedly mounted on the top of the filter plate is slidably connected to the four sides of the fixing frame, and a second damping spring sleeved on the slide rod is arranged between the fixing frame and the filter plate.

[0009] As a further preference of the technical solution, a first tilting block is arranged in a circular array on the top of the rotating disk, a fixing plate fixedly mounted on the sleeve is arranged on one side of the first tilting block, and a knocking rod for knocking the fixing frame is slidably connected to the fixing plate.

[0010] As a further preferred embodiment of the present technical solution, a cross bar is fixedly connected to the inner end of the knocking rod, and the positions of the cross bar and the first inclined block correspond to each other, a limiting block is fixedly connected to the surface of the knocking rod, and a first damping spring mounted on the knocking rod is arranged between the limiting block and the fixed plate.

[0011] As a further preferred embodiment of the present technical solution, a moving rod is laterally slidably connected to the sleeve and the purification chamber, and a fourth damping spring is provided at the upper and lower ends of the inner side of the moving rod, the other end of the fourth damping spring is fixedly connected to the inner wall of the sleeve, a pulley is provided at the inner end of the moving rod, one side of the pulley is slidably connected to a cam fixedly mounted on the driving rod, and a trapezoidal plate is fixedly connected to the outer end of the moving rod.

[0012] As a further preferred embodiment of the present technical solution, a purification box connected to the first exhaust pipe is provided on one side of the trapezoidal plate, a second exhaust pipe is provided on the outer end of the purification box, an absorbent is provided on the inner side of the purification box, and drainage pipes are provided on both sides of the bottom of the purification box.

[0013] As a further preferred embodiment of the present technical solution, squeezing rollers are arranged on both sides of the absorbent, U-shaped plates corresponding to the positions of the trapezoidal plates are arranged at the bottom of the two squeezing rollers, and the U-shaped plates are slidably installed at the bottom of the purification box.

[0014] As a further preferred embodiment of the present technical solution, a connecting block is fixedly connected to one side of the U-shaped plate, a positioning rod is slidably connected to the connecting block, and the positioning rod is fixedly installed at the bottom of the purification box, and a third damping spring is arranged between the connecting block and the purification box and is sleeved on the positioning rod.

[0015] As a further preferred embodiment of the present technical solution, the spray assembly includes a delivery pipe fixedly installed on the purification chamber, one end of the delivery pipe is fixedly connected to a positioning cylinder, a diversion pipe is rotatably arranged on the top of the positioning cylinder, and the diversion pipe is fixedly installed at the bottom of the driving rod, the diversion pipe is arranged in a circular array with fixed pipes, and a spray head is arranged at the bottom of the fixed pipe.

[0016] Compared with the prior art, it has the following beneficial effects:

[0017] The cleaning plate and the rotating disk are driven by a servo motor to rotate, so that the particles sticking to the bottom surface of the filter plate can be effectively removed. In addition, the rotating disk drives the movement of the second tilting block and the cleaning rod to thoroughly clean the filter holes of the filter plate to avoid blockage and ensure the filtering effect.

[0018] Through the cooperation of the first tilting block and the knocking rod, the knocking and vibration cleaning of the fixed frame, arc plate, cleaning rod and other components is achieved, which effectively prevents the accumulation of dust, impurities or residues on these components, keeps their surfaces clean, and avoids equipment failure or performance degradation that may be caused by blockage or accumulation.

[0019] Through the cooperation of cams, pulleys, trapezoidal plates and other mechanisms, the absorbent is regularly squeezed to effectively discharge the moisture containing harmful gases absorbed inside it, thus preventing the absorbent from being saturated and unable to continue to absorb new harmful gases. This ensures that the absorbent can continuously and efficiently treat harmful gases in the flue gas and extends the service life of the absorbent. Regular cleaning and squeezing ensure that each component in the flue gas treatment system is always in good working condition and will not suffer performance degradation due to moisture accumulation or blockage, thereby contributing to the stable operation of the entire flue gas treatment system.

[0020] By driving the diverter pipe, fixed pipe and spray head to rotate synchronously through the driving rod, the spray liquid can be more evenly distributed in the exhaust gas. This rotary spraying method increases the contact area between the spray liquid and the exhaust gas, thereby improving the spraying efficiency and making the large particles in the exhaust gas be removed more effectively. Rotary spraying not only improves the spraying efficiency, but also enhances the removal effect of large particles in the exhaust gas through more uniform distribution of the spray liquid, which helps to ensure that the exhaust gas can reach a higher purification standard after passing through the spray system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the structure of the purification chamber in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the spray assembly in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the driving rod, the cleaning plate, the rotating disk, the first tilting block, the second tilting block and the knocking rod in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the fixing frame, the arc plate and the cleaning rod in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the cam, pulley, moving rod and trapezoidal plate in the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the purification box, the absorbent and the squeezing roller in the present invention.

[0029] In the figure: 1, purification chamber; 2, air inlet pipe; 3, sleeve; 4, filter plate; 5, cleaning assembly; 6, spray assembly; 7, first exhaust pipe; 51, servo motor; 52, drive rod; 53, cleaning plate; 54, rotating disk; 55, first tilting block; 56, fixed plate; 57, knocking rod; 58, cross bar; 59, first damping spring; 510, limit block; 511, second tilting block; 512, fixed frame; 513, arc plate; 514, cleaning rod; 515, convex rod; 516 , sliding rod; 517, second damping spring; 518, cam; 519, moving rod; 520, pulley; 521, trapezoidal plate; 522, purification box; 523, second exhaust pipe; 524, absorber; 525, drain pipe; 526, squeezing roller; 527, U-shaped plate; 528, connecting block; 529, positioning rod; 530, third damping spring; 531, fourth damping spring; 61, conveying pipe; 62, positioning cylinder; 63, shunt pipe; 64, fixed pipe; 65, sprinkler head. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. 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] Embodiment 1: Combination Figure 1-Figure 8As shown, the present invention provides a technical solution: an exhaust gas treatment device for a steam boiler, comprising a purification chamber 1, wherein an air inlet pipe 2 is arranged at the bottom of the purification chamber 1 for introducing the gas to be purified, a first exhaust pipe 7 is arranged at one side of the upper end of the purification chamber 1 for discharging flue gas, a filter plate 4 is fixedly installed inside the purification chamber 1 for intercepting particulate matter in the gas, a sleeve 3 is fixedly installed at the bottom of the inner cavity of the purification chamber 1, a cleaning component 5 for cleaning the filter plate 4 is arranged at the bottom, and a spray component 6 is arranged below the filter plate 4 for wetting the filter plate 4 during the cleaning process to help remove adhered particulate matter;

[0032] The cleaning assembly 5 includes a servo motor 51 fixedly installed in the inner cavity of the sleeve 3, the output end of the servo motor 51 is fixedly connected to a driving rod 52, the bottom end of the driving rod 52 passes through the filter plate 4 and extends downward, and is fixedly connected to a cleaning plate 53 for cleaning the bottom surface of the filter plate 4, the outer wall of the driving rod 52 is fixedly connected to a rotating disk 54, the bottom of the rotating disk 54 is provided with a second inclined block 511 in a circumferential array, a fixing frame 512 is provided below the rotating disk 54, the top of the fixing frame 512 is provided with a convex rod 515 in a circumferential array, and the position of the convex rod 515 corresponds to the second inclined block 511, the fixing frame 512 is provided with an arc plate 513, the bottom of the arc plate 513 is fixedly connected to a cleaning rod 514 for cleaning the filter holes of the filter plate 4, and the servo motor 51 is turned on to drive The driving rod 52 rotates synchronously, and the driving rod 52 drives the cleaning plate 53 and the rotating disk 54 to rotate synchronously. The rotating cleaning plate 53 can effectively remove the particles stuck on the bottom surface of the filter plate 4. At the same time, the rotating disk 54 can drive the second inclined block 511 to rotate synchronously when rotating, so that the second inclined block 511 pushes the protruding rod 515 to move downward when rotating, and then the protruding rod 515 drives the fixing frame 512, the arc plate 513 and the cleaning rod 514 to move downward, so that the cleaning rod 514 moves downward and enters the filter hole of the filter plate 4, so that the cleaning rod 514 cleans the filter hole of the filter plate 4. During the cleaning process, the cleaning rod 514 can effectively remove the particles in the filter hole and keep the filter plate 4 clean, thereby ensuring the efficient operation of the exhaust gas treatment device;

[0033] The fixing frame 512 is slidably connected to a slide bar 516 fixedly installed on the top of the filter plate 4. A second damping spring 517 sleeved on the slide bar 516 is provided between the fixing frame 512 and the filter plate 4. Under the elastic force of the second damping spring 517, the fixing frame 512, the arc plate 513, the cleaning rod 514 and the protruding rod 515 can be pushed to move upward, so that the top of the protruding rod 515 slides in contact with the second inclined block 511. When the fixing frame 512 moves downward, the second damping spring 517 can be compressed, thereby providing stable support and reset functions during the entire working process of the cleaning assembly 5.

[0034] A first tilting block 55 is arranged in a circular array on the top of the rotating disk 54, and a fixed plate 56 fixedly installed on the sleeve 3 is arranged on one side of the first tilting block 55, and a knocking rod 57 for knocking the fixed frame 512 is slidably connected to the fixed plate 56, and a cross bar 58 is fixedly connected to the inner end of the knocking rod 57, and the position of the cross bar 58 and the first tilting block 55 corresponds to each other, and the surface of the knocking rod 57 is fixedly connected to the limit block 510, and a first damping spring 59 sleeved on the knocking rod 57 is arranged between the limit block 510 and the fixed plate 56. When the rotating disk 54 rotates, it can drive the first tilting block 55 to rotate synchronously, and the rotating first tilting block 55 can push the cross bar 58 to move upward, so that the cross bar 58 drives the knocking rod 5 7. The limit block 510 is located on the fixed plate 56 and moves upward to compress the first damping spring 59. When the cross bar 58 slides over the first tilting block 55, the limit block 510 and the knocking rod 57 are pushed downward by the elastic action of the first damping spring 59, so that the knocking rod 57 knocks the fixed frame 512 when moving downward. Through this knocking and vibration method, dust, impurities or residues can be effectively prevented from accumulating on these components, and their surfaces can be kept clean, thereby avoiding equipment failure or performance degradation caused by blockage or accumulation. By reducing the wear and corrosion of the components by the accumulation and impurities, the service life of key components such as the fixed frame 512, the arc plate 513 and the cleaning rod 514 can be extended, and the maintenance cost can be reduced;

[0035] A moving rod 519 is slidably connected to the sleeve 3 and the purification chamber 1, and a fourth damping spring 531 is provided at the upper and lower inner ends of the moving rod 519, and the other end of the fourth damping spring 531 is fixedly connected to the inner wall of the sleeve 3. A pulley 520 is provided at the inner end of the moving rod 519, and a cam 518 fixedly installed on the driving rod 52 is slidably connected to one side of the pulley 520, and a trapezoidal plate 521 is fixedly connected to the outer end of the moving rod 519. When the driving rod 52 rotates, it can drive the cam 518 to rotate synchronously. When the cam 518 rotates to the convex position, it cooperates with the pulley 520 to push the moving rod 519 and the trapezoidal plate 521 to move outward and compress the fourth damping spring 531. When the cam 518 rotates to the concave position, the elastic force of the fourth damping spring 531 can push the pulley 520, the moving rod 519, and the trapezoidal plate 521 to move inward, thereby realizing stable control of the moving rod 519.

[0036] A purification box 522 connected to the first exhaust pipe 7 is provided on one side of the trapezoidal plate 521, and a second exhaust pipe 523 is provided on the outer end of the purification box 522. An absorber 524 is provided on the inner side of the purification box 522. The absorber 524 can be made of a polymer water-absorbing material, such as polyacrylamide, polyvinyl alcohol, etc. These materials have strong water absorption and water retention capabilities, can quickly absorb moisture in the flue gas, and remove harmful gases through chemical reactions or physical adsorption. The absorber 524 can absorb and process the moisture and harmful gases in the flue gas. Drain pipes 525 are provided on both sides of the bottom of the purification box 522. A control valve is provided on the drain pipe 525. The flue gas is discharged into the purification box 522 through the first exhaust pipe 7. The absorber 524 can effectively absorb moisture and harmful gases in the flue gas, such as sulfur dioxide, nitrogen oxides, etc. The purified flue gas is discharged through the second exhaust pipe 523, and the waste liquid generated during the purification process is discharged through the drain pipe 525.

[0037] Squeezing rollers 526 are provided on both sides of the absorbent 524, and U-shaped plates 527 corresponding to the positions of the trapezoidal plates 521 are provided at the bottom of the two squeezing rollers 526, and the U-shaped plates 527 are slidably installed at the bottom of the purification box 522, and a connecting block 528 is fixedly connected to one side of the U-shaped plate 527, and a positioning rod 529 is slidably connected to the connecting block 528, and the positioning rod 529 is fixedly installed at the bottom of the purification box 522, and a third damping spring 530 sleeved on the positioning rod 529 is provided between the connecting block 528 and the purification box 522. When the trapezoidal plate 521 moves outward, the trapezoidal plate 521 can push the U-shaped plate 527 and the squeezing rollers 526 to move upward, so that when the squeezing rollers 526 move upward, the absorbent 524 can be squeezed, and the absorbent 524 can be squeezed by the squeezing of the squeezing rollers 526. The absorbed moisture containing harmful gases is discharged, so that the absorbent 524 can continue to act on the flue gas. By squeezing the absorbent 524, the moisture containing harmful gases absorbed inside it can be effectively discharged, which can prevent the absorbent 524 from being unable to continue to absorb new harmful gases due to saturation, thereby ensuring that the absorbent 524 can continue to efficiently treat the harmful gases in the flue gas. The long-term accumulation of moisture containing harmful gases may cause corrosion or blockage to the absorbent 524, affecting its service life. By regularly squeezing out this moisture, the damage to the absorbent 524 can be reduced and its service life can be extended. The squeezing process ensures that the absorbent 524 always remains in a good working condition and will not cause performance degradation due to moisture accumulation, which contributes to the stable operation of the entire flue gas treatment system.

[0038] In the embodiment of the present invention, the flue gas enters the purification chamber 1 through the air inlet pipe 2, and the flue gas is sprayed by the spray assembly 6 to remove harmful substances therein. Subsequently, the flue gas passes through the filter plate 4, and the filter plate 4 can effectively intercept and remove large particles in the flue gas. In order to further clean the filter plate 4, the servo motor 51 is turned on, and the driving rod 52 is rotated synchronously. The rotation of the driving rod 52 drives the cleaning plate 53 and the rotating disk 54 to rotate together. During the rotation of the cleaning plate 53, the particles sticking to the bottom surface of the filter plate 4 can be effectively removed. At the same time, when the rotating disk 54 rotates, it can drive the second inclined block 511 to rotate synchronously. During the rotation of the second inclined block 511, the protruding rod 515 is pushed downward, so that the protruding rod 515 drives the fixing frame 512, the arc plate 513 and the cleaning rod 514 to move downward. The cleaning rod 514 moves downward and enters the filter holes of the filter plate 4 to thoroughly clean the filter holes.

[0039] When the rotating disk 54 continues to rotate, it can drive the first tilting block 55 to rotate synchronously. The rotating first tilting block 55 can push the cross bar 58 to move upward, so that the cross bar 58 drives the knocking rod 57 and the limit block 510 located on the fixed plate 56 to move upward and compress the first damping spring 59. When the cross bar 58 slides over the first tilting block 55, the limit block 510 and the knocking rod 57 are pushed downward under the elastic action of the first damping spring 59, so that the knocking rod 57 knocks the fixed frame 512 when moving downward. Through this knocking and vibration cleaning, dust, impurities or residues can be effectively prevented from accumulating on the fixed frame 512, the arc plate 513, the cleaning rod 514 and other components, and their surfaces can be kept clean. In this way, equipment failure or performance degradation caused by blockage or accumulation can be avoided. By reducing the wear and corrosion of the components by the accumulation and impurities, the service life of key components such as the fixed frame 512, the arc plate 513 and the cleaning rod 514 can be extended, and the maintenance cost can be reduced.

[0040] When the driving rod 52 rotates, it can drive the cam 518 to rotate synchronously. When the cam 518 rotates to the convex position, it cooperates with the pulley 520 to push the moving rod 519 and the trapezoidal plate 521 to move outward and compress the fourth damping spring 531. As the cam 518 rotates to the concave position, under the elastic force of the fourth damping spring 531, it can push the pulley 520, the moving rod 519, and the trapezoidal plate 521 to move inward. When the trapezoidal plate 521 moves outward, the trapezoidal plate 521 can push the U-shaped plate 527 and the squeezing roller 526 to move upward. When the squeezing roller 526 moves upward, it can squeeze the absorbent 524, so that the water containing harmful gases absorbed by the absorbent 524 can be discharged, which can make The absorber 524 can continue to act on the flue gas. By squeezing the absorber 524, the moisture containing harmful gases absorbed inside it can be effectively discharged, avoiding the absorber 524 from being unable to continue to absorb new harmful gases due to saturation, thereby ensuring that the absorber 524 can continue to efficiently treat harmful gases in the flue gas. The moisture containing harmful gases accumulated for a long time may cause corrosion or blockage to the absorber 524, affecting its service life. By regularly squeezing out this moisture, the damage to the absorber 524 can be reduced and its service life can be extended. The squeezing process ensures that the absorber 524 always remains in a good working condition and will not cause performance degradation due to moisture accumulation, which contributes to the stable operation of the entire flue gas treatment system.

[0041] Embodiment 2: Combination Figure 2 , Figure 3 As shown, on the basis of embodiment one, the spray assembly 6 includes a delivery pipe 61 fixedly installed on the purification chamber 1, one end of the delivery pipe 61 is fixedly connected to a positioning cylinder 62, a diversion pipe 63 is rotatably arranged on the top of the positioning cylinder 62, and the diversion pipe 63 is fixedly installed at the bottom of the driving rod 52, the diversion pipe 63 is arranged in a circular array with fixed pipes 64, and a spray head 65 is arranged at the bottom of the fixed pipe 64.

[0042] In an embodiment of the present invention, when the driving rod 52 rotates, it can drive the shunt pipe 63 to rotate synchronously, and then drive the fixed pipe 64 and the spray head 65 to rotate synchronously, and the spray liquid is transported to the positioning cylinder 62 through the delivery pipe 61, and the positioning cylinder 62 transports the spray liquid to the fixed pipe 64 through the shunt pipe 63, and then sprays it out through the spray head 65, so that the sprayed spray liquid can spray the exhaust gas, thereby effectively removing large particles in the exhaust gas, and the rotation of the spray head 65 and the fixed pipe 64 can increase the contact area between the spray liquid and the exhaust gas, so that the spray liquid is more evenly distributed in the exhaust gas, thereby improving the spraying efficiency and ensuring that large particles in the exhaust gas are more effectively removed.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for a steam boiler, comprising a purification chamber (1), an air inlet pipe (2) being arranged at the bottom of the purification chamber (1), and a first exhaust pipe (7) being arranged at one side of the upper end of the purification chamber (1), characterized in that: A filter plate (4) is fixedly installed inside the purification chamber (1), a sleeve (3) is fixedly installed at the bottom of the inner cavity of the purification chamber (1), a cleaning component (5) for cleaning the filter plate (4) is arranged at the bottom of the sleeve (3), and a spray component (6) is arranged below the filter plate (4); The cleaning assembly (5) comprises a servo motor (51) fixedly mounted in the inner cavity of the sleeve (3); the output end of the servo motor (51) is fixedly connected to a driving rod (52); the bottom end of the driving rod (52) penetrates the filter plate (4) and extends downward, and is fixedly connected to a cleaning plate (53) for cleaning the bottom surface of the filter plate (4); the outer wall of the driving rod (52) is fixedly connected to a rotating disk (54); the bottom of the rotating disk (54) is provided with second inclined blocks (511) in a circular array; a fixing frame (512) is provided below the rotating disk (54); the top of the fixing frame (512) is provided with protruding rods (515) in a circular array, and the positions of the protruding rods (515) and the second inclined blocks (511) correspond to each other; the fixing frame (512) is provided with an arc plate (513); the bottom of the arc plate (513) is fixedly connected to a cleaning rod (514) for cleaning the filter holes of the filter plate (4).

2. The exhaust gas treatment device for a steam boiler according to claim 1, characterized in that: The fixing frame (512) is slidably connected to a sliding rod (516) fixedly mounted on the top of the filter plate (4) around the fixing frame (512), and a second damping spring (517) sleeved on the sliding rod (516) is arranged between the fixing frame (512) and the filter plate (4).

3. The exhaust gas treatment device for a steam boiler according to claim 2, characterized in that: The top of the rotating disk (54) is provided with first tilting blocks (55) in a circumferential array, one side of the first tilting blocks (55) is provided with a fixing plate (56) fixedly mounted on the sleeve (3), and a knocking rod (57) for knocking the fixing frame (512) is slidably connected to the fixing plate (56).

4. The exhaust gas treatment device for a steam boiler according to claim 3, characterized in that: The inner end of the knocking rod (57) is fixedly connected to a cross bar (58), and the positions of the cross bar (58) and the first tilting block (55) correspond to each other. The surface of the knocking rod (57) is fixedly connected to a limit block (510), and a first damping spring (59) sleeved on the knocking rod (57) is arranged between the limit block (510) and the fixed plate (56).

5. The exhaust gas treatment device for a steam boiler according to claim 4, characterized in that: A moving rod (519) is slidably connected to the sleeve (3) and the purification chamber (1) in a transverse manner, and a fourth damping spring (531) is provided at the upper and lower ends of the inner side of the moving rod (519), and the other end of the fourth damping spring (531) is fixedly connected to the inner wall of the sleeve (3). A pulley (520) is provided at the inner end of the moving rod (519), and a cam (518) fixedly mounted on the driving rod (52) is slidably connected to one side of the pulley (520), and a trapezoidal plate (521) is fixedly connected to the outer end of the moving rod (519).

6. The exhaust gas treatment device for a steam boiler according to claim 5, characterized in that: A purification box (522) connected to the first exhaust pipe (7) is provided on one side of the trapezoidal plate (521); a second exhaust pipe (523) is provided at the outer end of the purification box (522); an absorber (524) is provided on the inner side of the purification box (522); and drainage pipes (525) are provided on both sides of the bottom of the purification box (522).

7. The exhaust gas treatment device for a steam boiler according to claim 1, characterized in that: Squeezing rollers (526) are arranged on both sides of the absorbent (524), and U-shaped plates (527) corresponding to the positions of the trapezoidal plates (521) are arranged at the bottom of the two squeezing rollers (526), ​​and the U-shaped plates (527) are slidably installed at the bottom of the purification box (522).

8. The exhaust gas treatment device for a steam boiler according to claim 7, characterized in that: A connecting block (528) is fixedly connected to one side of the U-shaped plate (527), a positioning rod (529) is slidably connected to the connecting block (528), and the positioning rod (529) is fixedly installed at the bottom of the purification box (522), and a third damping spring (530) sleeved on the positioning rod (529) is provided between the connecting block (528) and the purification box (522).

9. The exhaust gas treatment device for a steam boiler according to claim 8, characterized in that: The spray assembly (6) comprises a delivery pipe (61) fixedly mounted on the purification chamber (1), one end of the delivery pipe (61) is fixedly connected to a positioning cylinder (62), a shunt pipe (63) is rotatably arranged on the top of the positioning cylinder (62), and the shunt pipe (63) is fixedly mounted on the bottom of the driving rod (52), the shunt pipe (63) is arranged in a circular array with fixed pipes (64), and a spray head (65) is arranged at the bottom of the fixed pipe (64).

Images