Sludge carbonization waste gas treatment device

Abstract

The application discloses a sludge carbonization waste gas treatment device, and relates to a filter press with a turnover plate unloading mechanism, which comprises an air extraction mechanism, an air inlet pipe and an air outlet pipe are arranged at an air inlet end and an air outlet end of the air extraction mechanism respectively, a heat accumulating type combustor for treating organic matters in waste gas is arranged at one end of the air outlet pipe away from the air extraction mechanism, and a filtering mechanism for intercepting dust in waste gas is arranged at one end of the air inlet pipe away from the air extraction mechanism; the filtering mechanism comprises a square pipe arranged on the air inlet pipe. According to the application, dust in foul-smelling waste gas can be intercepted by arranging the filtering mechanism at the air inlet end of the air inlet pipe, the influence on the air extraction mechanism is reduced, the frequency of fan shutdown is reduced, meanwhile, the filtering mechanism can change the connection and closure state of the air inlet pipe, and changes according to the change of the working state of the filter press, cooperates with a detection mechanism, and concentrates suction to equipment meeting the demand, so that the effect of reducing the suction waste of the air extraction mechanism is achieved.

Description

Technical Field

[0001] This invention relates to the field of sludge carbonization technology, and in particular to a sludge carbonization waste gas treatment device. Background Technology

[0002] The sludge carbonization process requires the sludge to be dried first, so that the sludge moisture content reaches the set standard and is then stored in a silo. The sludge is then fed into a multi-stage furnace for pyrolysis and carbonization. Since the above process generates waste gas, it is necessary to treat the waste gas to be harmless in order to meet environmental emission requirements.

[0003] Currently, the traditional approach to treating waste gas generated during the drying process involves installing an exhaust pipe at the top of the dewatering workshop, connecting it to an exhaust fan, and then through a pipe to an RTO (Regenerative Thermal Oxidizer). Under process conditions exceeding 850℃, H2S and NH3 in the waste gas are completely oxidized and decomposed into SO2 and NOx, which are then treated by activated carbon injection and a bag filter before being discharged. However, after prolonged transport of the dust-laden waste gas, dust accumulates in the impeller of the fan, requiring the fan to be shut down for cleaning after a certain period of operation, severely impacting the waste gas treatment efficiency. Furthermore, the above approach often involves setting up multiple exhaust pipes corresponding to multiple sludge filter presses, with a single exhaust fan drawing away the waste gas generated during filter press unloading. Since the sludge filter press discharges intermittently, odorous waste gas is generated during these periods, resulting in varying amounts of waste gas requiring treatment at different times. Currently, multiple exhaust pipes are always open, leading to wasted suction power during fan extraction, which also negatively impacts waste gas treatment efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned above by providing a sludge carbonization waste gas treatment device, thereby reducing the frequency of fan shutdowns and minimizing the waste of fan suction power.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sludge carbonization waste gas treatment device, involving a filter press with a flip-plate feeding mechanism, including a ventilation mechanism. The ventilation mechanism has an inlet pipe and an outlet pipe respectively. A regenerative burner for treating organic matter in the waste gas is provided at the end of the outlet pipe away from the ventilation mechanism. A filter mechanism for intercepting dust in the waste gas is provided at the end of the inlet pipe away from the ventilation mechanism. The filter mechanism includes a square tube disposed on the inlet pipe, with an air inlet for allowing waste gas to flow into the inlet pipe. A filter plate and a filter for blocking the air inlet and scraping off filter media are disposed within the air inlet. The dust removal mechanism on the plate has a groove at the bottom of the square tube for downward movement of the dust removal mechanism. A dust collection mechanism is located at the bottom of the dust removal mechanism, and a pull-down mechanism at the bottom of the dust collection mechanism drives both the dust removal mechanism and the dust collection mechanism downwards together. A reset mechanism is located at the top of the dust removal mechanism to reset both the dust removal mechanism and the dust collection mechanism. The pull-down mechanism is connected to the flip-plate feeding mechanism. When the flip-plate feeding mechanism is open for feeding, the pull-down mechanism pulls the dust removal mechanism and the dust collection mechanism downwards together; when the flip-plate feeding mechanism is closed, the reset mechanism drives the dust removal mechanism and the dust collection mechanism upwards to reset.

[0006] The bottom of the square tube is fixedly provided with a side plate for preventing dust from overflowing during the downward movement of the ash removal mechanism and the ash storage mechanism. There are two side plates, and the two side plates are located on both sides of the ash storage mechanism.

[0007] The ash removal mechanism is equipped with a detection mechanism for checking whether the suction in the air inlet pipe meets the standard. The filter press will only start discharging material after the detection mechanism detects that the suction meets the standard.

[0008] Furthermore, the square tube is provided with a guide shroud at the end away from the air inlet pipe to guide the exhaust gas into the air outlet. The cross-sectional area of ​​the guide shroud at the end away from the square tube is larger than the cross-sectional area of ​​the guide shroud at the end closer to the square tube.

[0009] Furthermore, the dust removal mechanism includes a first baffle and a second baffle disposed in the air inlet, the filter plate is located between the first baffle and the second baffle, and the first baffle is close to the air inlet end of the square tube. Both the first baffle and the second baffle are provided with dust scraping strips on the side of the filter plate that are close to the filter plate for scraping off dust from the filter plate.

[0010] Furthermore, the ash storage mechanism includes a channel steel, and the first baffle and the second baffle are both fixedly connected to the channel steel. An ash storage box is slidably arranged inside the channel steel. The top of the ash storage box is provided with an ash storage groove for collecting the dust scraped between the first baffle and the filter plate. A hidden groove is provided on the side of the ash storage box near the side plate. A handle for maintenance personnel to hold is rotatably arranged in the hidden groove.

[0011] The side plate has a retrieval hole for taking out and putting in the ash storage box, and a sealing plate is detachably installed in the retrieval hole.

[0012] Furthermore, the pull-down mechanism includes a first pull rope fixedly installed at the bottom of the channel steel, and a first counterweight is provided at the end of the first pull rope away from the channel steel. The flip-plate unloading mechanism includes two flip plates that rotate relative to each other up and down, and the first counterweight is placed on the top of the flip plates.

[0013] The reset mechanism includes a second pull rope fixedly mounted on the top of the first baffle and passing through the square tube. A second counterweight is provided at the end of the second pull rope away from the first baffle. A fixed pulley for guiding the second pull rope to turn is fixedly mounted on the top of the square tube. A rectangular sleeve for limiting the movement direction of the second counterweight is provided on the outer wall of the square tube. The weight of the second counterweight is greater than the sum of the weights of the ash removal mechanism and the ash storage mechanism. The sum of the weights of the first counterweight, the ash removal mechanism, and the ash storage mechanism is greater than the weight of the second counterweight.

[0014] Furthermore, the top of the first baffle on the side away from the filter plate is detachably provided with a limiting strip for restricting the ash removal mechanism from moving out of the square tube.

[0015] Furthermore, the detection mechanism includes a through hole opened in the second baffle, a piston plate is disposed in the through hole, the piston plate is slidably disposed in the through hole and seals with the through hole, a baffle for limiting the movement distance of the piston plate and a push switch for sending wireless signals to the filter press are fixedly disposed in the through hole, the piston plate is located between the baffle and the push switch, and the baffle is located on the side of the piston plate closer to the filter plate, and a spring is disposed between the push switch and the piston plate.

[0016] Furthermore, the square tube is provided with a guide mechanism for guiding the dust scraper strips toward and away from the filter plate.

[0017] Furthermore, the guiding mechanism includes a guide post fixedly mounted on the dust scraper near the side plate. An annular guide groove is provided inside the square tube to guide the movement of the guide post. Both the first baffle and the second baffle are provided with a shrinkage groove for the dust scraper to move away from the filter plate. The height of the shrinkage groove on the side away from the filter plate is higher than the height of the shrinkage groove on the side near the filter plate. The annular guide groove is composed of an ascending section, a forward section, a descending section, and a retracting section that are interconnected. The ascending section is parallel to the descending section, and the angle of the forward section is the same as the angle of the shrinkage groove. A valve plate is slidably mounted inside the square tube to prevent the guide post from moving upward from the descending section. The valve plate is located at the junction of the descending section and the retracting section.

[0018] When the guide column is in the falling section, the dust scraper strip is in contact with the filter plate; when the guide column is in the rising section, the dust scraper strip is separated from the filter plate.

[0019] The beneficial effects of this invention are reflected in:

[0020] This invention, by setting a filter mechanism at the air inlet end of the air inlet pipe, allows dust in the malodorous exhaust gas to be intercepted, reducing the impact on the exhaust mechanism and decreasing the frequency of fan shutdown. At the same time, the filter mechanism can change the open and closed state of the air inlet pipe and change according to the working state of the filter press. In conjunction with the detection mechanism, it concentrates the suction power to the equipment that meets the requirements, thereby reducing the waste of suction power in the exhaust mechanism. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 A three-dimensional view of the filtration mechanism;

[0023] Figure 3 This is a partial cross-sectional view of the filtration mechanism;

[0024] Figure 4 for Figure 3 A magnified view of a portion of point A shown;

[0025] Figure 5 A three-dimensional view of the filter mechanism when it is in the ventilation state;

[0026] Figure 6 A three-dimensional view of the filter mechanism when it is in a closed state;

[0027] Figure 7 A partial view of the drop-down mechanism and the detection mechanism;

[0028] Figure 8 for Figure 7 A magnified view of a portion at point D is shown below.

[0029] Figure 9 A partial view of the testing facility;

[0030] Figure 10 A partial view of the guiding mechanism;

[0031] Figure 11 for Figure 10 A magnified view of a portion of point B is shown below;

[0032] Figure 12 for Figure 10 A magnified view of a portion of point C shown.

[0033] In the picture:

[0034] 1. Exhaust mechanism; 2. Inlet pipe; 3. Outlet pipe; 4. Regenerative burner; 5. Filtration mechanism; 51. Square tube; 52. Air outlet; 53. Filter plate; 54. Ash removal mechanism; 541. First baffle; 542. Second baffle; 543. Dust scraper; 55. Slide chute; 56. Ash storage mechanism; 561. Channel steel; 562. Ash storage box; 563. Ash storage trough; 564. Concealed slot; 565. Handle; 566. Sealing plate; 57. Pull-down mechanism; 571. First pull rope; 572. First counterweight; 58. Reset mechanism; 581. Second pull rope; 582. Second counterweight; 583. Fixed pulley; 584. Rectangular sleeve; 59. Side plate; 591. Pick-up and drop-off hole; 6. Detection mechanism; 61. Through hole; 62. Piston plate; 63. Stop bar; 64. Press switch; 65. Spring; 7. Flow guide; 8. Limiting bar; 9. Guiding mechanism; 91. Guide column; 92. Annular guide groove; 93. Shrinkage groove; 94. Valve plate; 10. Flip plate unloading mechanism. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-12This invention discloses a sludge carbonization waste gas treatment device, involving a filter press with a flip-plate feeding mechanism 10. It includes a ventilation mechanism 1, with an inlet pipe 2 and an outlet pipe 3 respectively installed at the inlet and outlet ends of the ventilation mechanism 1. A regenerative burner 4 for treating organic matter in the waste gas is installed at the end of the outlet pipe 3 away from the ventilation mechanism 1. A filter mechanism 5 for intercepting dust in the waste gas is installed at the end of the inlet pipe 2 away from the ventilation mechanism 1. The filter mechanism 5 includes a square tube 51 installed on the inlet pipe 2, with an air inlet 52 for allowing waste gas to flow into the inlet pipe 2. A filter plate 53 and a dust removal mechanism 5 for blocking the air inlet 52 and scraping off dust adhering to the filter plate 53 are installed within the air inlet 52. 4. The bottom of the square tube 51 is provided with a sliding groove 55 for the ash removal mechanism 54 to move downward. The bottom of the ash removal mechanism 54 is provided with an ash storage mechanism 56 for collecting dust. The bottom of the ash storage mechanism 56 is provided with a pull-down mechanism 57 for driving the ash removal mechanism 54 and the ash storage mechanism 56 to move downward together. The top of the ash removal mechanism 54 is provided with a reset mechanism 58 for driving the ash removal mechanism 54 and the ash storage mechanism 56 to reset. The pull-down mechanism 57 is connected to the flip-plate feeding mechanism 10. When the flip-plate feeding mechanism 10 is opened for feeding, the pull-down mechanism 57 pulls the ash removal mechanism 54 and the ash storage mechanism 56 downward together. When the flip-plate feeding mechanism 10 is reset and closed, the reset mechanism 58 drives the ash removal mechanism 54 and the ash storage mechanism 56 to move upward and reset.

[0037] The bottom of the square tube 51 is fixedly provided with a side plate 59 for preventing dust from overflowing during the downward movement of the ash removal mechanism 54 and the ash storage mechanism 56. There are two side plates 59, and the two side plates 59 are located on both sides of the ash storage mechanism 56 respectively.

[0038] The ash removal mechanism 54 is equipped with a detection mechanism 6 for detecting whether the suction in the air inlet pipe 2 meets the standard. The filter press will only start discharging material after the detection mechanism 6 detects that the suction meets the standard.

[0039] This invention, by installing a square tube 51 at the air inlet end of the air inlet pipe 2 and using a filter plate 53 to intercept most of the dust in the flowing exhaust gas, delays the time it takes for large amounts of dust to accumulate on the blades, reducing the frequency of fan shutdowns. When the filter press corresponding to that air inlet pipe 2 is in filter pressing mode, the reset mechanism 58 pulls the dust removal mechanism 54 to disconnect the square tube 51, allowing the suction force distributed at that air inlet pipe 2 to be transferred to the other air inlet pipes 2, increasing the suction force of the other air inlet pipes 2, improving the suction efficiency of odorous exhaust gas, and reducing suction waste. When the filter press corresponding to the air inlet pipe 2 is in the state of needing to discharge material, the suction power must first be checked by the detection mechanism 6 to see if it meets the standard. After the suction power meets the standard, the material is discharged. At the same time, the ash removal mechanism 54 is driven to move down by the pull-down mechanism 57 so that the malodorous exhaust gas generated during the discharge can enter the air inlet pipe 2 through the square pipe 51. During the downward movement of the ash removal mechanism 54, the dust intercepted on the filter plate 53 will be scraped off simultaneously, so that the dust is collected in the ash storage mechanism 56 to ensure that the flow of the filter plate 53 is not affected by the dust. If the suction power does not meet the standard, the material discharge needs to be temporarily suspended.

[0040] In one embodiment, a guide shroud 7 is provided at the end of the square tube 51 away from the air inlet pipe 2 to guide exhaust gas into the air outlet 52. The cross-sectional area of ​​the end of the guide shroud 7 away from the square tube 51 is larger than the cross-sectional area of ​​the end of the guide shroud 7 near the square tube 51. This design guides the malodorous exhaust gas into the square tube 51 through the guide shroud 7, thereby improving the suction effect of exhaust gas in the limited area.

[0041] In practice, since the odorous waste gas is emitted by the sludge, and the sludge is in a sealed state during the filter press process, it will not pollute the surrounding air. The odorous waste gas will only be generated when the dried sludge is discharged from the filter press into the silo. Therefore, the guide hood 7 needs to be set at the discharge point of the filter press, and the length of the guide hood 7 on the side close to the filter press should not be less than the length of the filter press to improve the suction effect of the odorous waste gas in this area.

[0042] In one embodiment, the dust removal mechanism 54 includes a first baffle 541 and a second baffle 542 disposed in the air inlet 52, and a filter plate 53 is located between the first baffle 541 and the second baffle 542. The first baffle 541 is close to the air inlet end of the square tube 51, and the first baffle 541 and the second baffle 542 are each provided with a dust scraper 543 for scraping dust off the filter plate 53 on the side close to the filter plate 53.

[0043] This design allows the first baffle 541 to move downwards, causing the dust scraper 543 to scrape away dust from the filter plate 53. The dust scraping area is separated from the ventilation area by the first baffle 541, the second baffle 542, and the dust scraper 543, thus reducing the impact on dust scraping.

[0044] In one embodiment, the ash storage mechanism 56 includes a channel steel 561, a first baffle 541 and a second baffle 542 are fixedly connected to the channel steel 561, an ash storage box 562 is slidably disposed in the channel steel 561, an ash storage groove 563 is opened on the top of the ash storage box 562 for collecting the dust scraped between the first baffle 541 and the filter plate 53, a hidden groove 564 is opened on the side of the ash storage box 562 near the side plate 59, and a handle 565 for maintenance personnel to hold is rotatably disposed in the hidden groove 564;

[0045] The side plate 59 has a pick-and-place hole 591 for picking up and placing the ash storage box 562, and a sealing plate 566 is detachably installed in the pick-and-place hole 591.

[0046] This design allows dust scraped off the filter plate 53 to be collected through the dust collection box 562, and the dust collection box 562 can be removed and cleaned periodically by disassembling the sealing plate 566.

[0047] In practice, since the first baffle 541 will no longer generate dust after being pulled down to its limit position, taking out the ash storage box 562 for cleaning during this period will not affect the operation of the equipment. Therefore, the position of the take-out hole 591 should be adapted to the position of the ash storage box 562 when it is in the lower limit state.

[0048] In one embodiment, the pull-down mechanism 57 includes a first pull rope 571 fixedly disposed at the bottom of the channel steel 561, and a first counterweight 572 is disposed at the end of the first pull rope 571 away from the channel steel 561. The flip-plate unloading mechanism 10 includes two flip plates that rotate relative to each other up and down, and the first counterweight 572 is placed on the top of the flip plates.

[0049] The reset mechanism 58 includes a second pull rope 581 fixedly mounted on the top of the first baffle 541 and passing through the square tube 51. A second counterweight 582 is provided at the end of the second pull rope 581 away from the first baffle 541. A fixed pulley 583 for guiding the second pull rope 581 to turn is fixedly mounted on the top of the square tube 51. A rectangular sleeve 584 for limiting the movement direction of the second counterweight 582 is provided on the outer wall of the square tube 51. The weight of the second counterweight 582 is greater than the sum of the weights of the ash removal mechanism 54 and the ash storage mechanism 56. The sum of the weights of the first counterweight 572, the ash removal mechanism 54, and the ash storage mechanism 56 is greater than the weight of the second counterweight 582.

[0050] With this design, during the material feeding process of the filter press, the flap in the flap feeding mechanism 10 on the filter press is driven by the motor to flip and open the bottom feeding port. By placing the first counterweight 572 on the edge of the flap of the filter press, when the filter press feeds material, the flap rotates, causing the first counterweight 572 to move down under the action of gravity, thereby driving the first baffle 541 to move down synchronously, so that the air inlet pipe 2 at that point can operate normally. After the material feeding is completed, the flap feeding mechanism 10 closes, causing the first counterweight 572 to lift up, and the second counterweight 582 pulls the first baffle 541 to reset, thereby completing the closure synchronously, transferring the suction force at that point to other positions, so that the operation of the pull-down mechanism 57 and the reset mechanism 58 can change with the changes in the working state of the filter press.

[0051] Preferably, the factory floor is equipped with guide wheels, and the first pull rope 571 is routed around the guide wheels to ensure that the first pull rope 571 can generate a vertically downward pulling force to drive the first baffle 541 to move downward.

[0052] In one embodiment, a limiting strip 8 is detachably provided on the top of the side of the first baffle 541 away from the filter plate 53 to restrict the ash removal mechanism 54 from moving out of the square tube 51. This design limits the maximum distance that the first baffle 541 can slide down by the limiting strip 8, preventing the first baffle 541 from completely moving out of the square tube 51 during the pulling-down process.

[0053] In practice, the height of the side plate 59 must be greater than the sum of the heights of the ash removal mechanism 54 and the ash storage mechanism 56. When the ash removal mechanism 54 needs maintenance, the ash removal mechanism 54 and the ash storage mechanism 56 can be pulled out from the bottom of the square tube 51 by removing the limit strip 8.

[0054] In one embodiment, the detection mechanism 6 includes a through hole 61 opened in the second baffle 542. A piston plate 62 is disposed in the through hole 61. The piston plate 62 is slidably disposed in the through hole 61 and is sealed to the through hole 61. A baffle 63 for limiting the movement distance of the piston plate 62 and a push switch 64 for sending wireless signals to the filter press are fixedly disposed in the through hole 61. The piston plate 62 is located between the baffle 63 and the push switch 64, and the baffle 63 is located on the side of the piston plate 62 closer to the filter plate 53. A spring 65 is disposed between the push switch 64 and the piston plate 62.

[0055] This design utilizes the principle that the exhaust mechanism 1 generates negative pressure during operation. When the air pressure meets the requirements, the air pressure between the first baffle 541 and the second baffle 542 is greater than the air pressure in the air inlet pipe 2, thereby pushing the piston plate 62 to overcome the thrust of the spring 65 and trigger the press switch 64. After the press switch 64 is triggered, it transmits a confirmation signal to the filter press wirelessly, enabling the filter press to determine the feeding time.

[0056] In one embodiment, the square tube 51 is provided with a guide mechanism 9 for guiding the dust scraper 543 toward and away from the filter plate 53. This design can prevent the dust scraper 543 from scraping the dust off the filter plate 53 during its ascent, thus avoiding dust overflow and environmental pollution.

[0057] In one embodiment, the guiding mechanism 9 includes a guide post 91 fixedly disposed on the side of the dust scraper 543 near the side plate 59. An annular guide groove 92 is provided in the square tube 51 to guide the movement of the guide post 91. Both the first baffle 541 and the second baffle 542 are provided with a shrinkage groove 93 for the dust scraper 543 to move away from the filter plate 53. The height of the shrinkage groove 93 on the side away from the filter plate 53 is higher than the height of the shrinkage groove 93 on the side near the filter plate 53. The annular guide groove 92 is composed of an ascending section, a forward section, a falling section and a retracting section that are interconnected. The ascending section is parallel to the falling section. The angle of the forward section is the same as the angle of the shrinkage groove 93. A valve plate 94 is slidably disposed in the square tube 51 to prevent the guide post 91 from moving upward from the falling section. The valve plate 94 is located at the junction of the falling section and the retracting section.

[0058] When the guide column 91 is in the falling section, the dust scraper 543 is in contact with the filter plate 53; when the guide column 91 is in the rising section, the dust scraper 543 is separated from the filter plate 53.

[0059] This design allows the guide post 91 to move within the annular guide groove 92, guiding the dust scraper 543 to move backward or forward, thus enabling it to change state as the first baffle 541 and the second baffle 542 rise and fall.

[0060] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0061] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0062] Additionally, "multiple" refers to two or more.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sludge carbonization waste gas treatment device, relating to a filter press with a flip-plate feeding mechanism (10), characterized in that: The system includes an exhaust mechanism (1), with an intake pipe (2) and an outlet pipe (3) respectively at the intake and outlet ends. A regenerative burner (4) for treating organic matter in the exhaust gas is provided at the end of the outlet pipe (3) away from the exhaust mechanism (1). A filter mechanism (5) for intercepting dust in the exhaust gas is provided at the end of the intake pipe (2) away from the exhaust mechanism (1). The filter mechanism (5) includes a square tube (51) mounted on the intake pipe (2). An air inlet (52) for allowing exhaust gas to flow into the intake pipe (2) is provided inside the square tube (51). A filter plate (53) and a dust removal mechanism (54) for blocking the air inlet (52) and scraping dust adhering to the filter plate (53) are provided inside the air inlet (52). A bottom opening for the dust removal mechanism (54) to move downwards is provided at the bottom of the square tube (51). The chute (55) of the dust removal mechanism (54) is provided with a dust collection mechanism (56) at the bottom for collecting dust. The dust collection mechanism (56) is provided with a pull-down mechanism (57) at the bottom for driving the dust removal mechanism (54) and the dust collection mechanism (56) to move down together. The dust removal mechanism (54) is provided with a reset mechanism (58) at the top for driving the dust removal mechanism (54) and the dust collection mechanism (56) to reset. The pull-down mechanism (57) is connected to the flip-plate feeding mechanism (10). When the flip-plate feeding mechanism (10) is opened for feeding, the pull-down mechanism (57) pulls down the dust removal mechanism (54) and the dust collection mechanism (56) to move down together. When the flip-plate feeding mechanism (10) is reset and closed, the reset mechanism (58) drives the dust removal mechanism (54) and the dust collection mechanism (56) to move up and reset. The bottom of the square tube (51) is fixedly provided with a side plate (59) for preventing dust from overflowing during the downward movement of the dust removal mechanism (54) and the dust storage mechanism (56). There are two side plates (59), and the two side plates (59) are located on both sides of the dust storage mechanism (56). The ash removal mechanism (54) is equipped with a detection mechanism (6) for detecting whether the suction in the air inlet pipe (2) meets the standard. The filter press will only start discharging material after the detection mechanism (6) detects that the suction meets the standard. The dust removal mechanism (54) includes a first baffle (541) and a second baffle (542) disposed in the air inlet (52). The filter plate (53) is located between the first baffle (541) and the second baffle (542). The first baffle (541) is close to the air inlet end of the square tube (51). Both the first baffle (541) and the second baffle (542) are provided with dust scraping strips (543) on the side of the filter plate (53) for scraping off dust on the filter plate (53).

2. The sludge carbonization waste gas treatment device according to claim 1, characterized in that: The square tube (51) is provided with a guide hood (7) at the end away from the air inlet pipe (2) to guide the exhaust gas into the air outlet (52). The cross-sectional area of ​​the guide hood (7) at the end away from the square tube (51) is larger than the cross-sectional area of ​​the guide hood (7) at the end close to the square tube (51).

3. The sludge carbonization waste gas treatment device according to claim 1, characterized in that: The ash storage mechanism (56) includes a channel steel (561), the first baffle (541) and the second baffle (542) are fixedly connected to the channel steel (561), and an ash storage box (562) is slidably arranged inside the channel steel (561). The top of the ash storage box (562) is provided with an ash storage groove (563) for collecting dust scraped between the first baffle (541) and the filter plate (53). A hidden groove (564) is provided on the side of the ash storage box (562) near the side plate (59). A handle (565) for maintenance personnel to hold is rotatably arranged inside the hidden groove (564). The side plate (59) has a pick-up and drop hole (591) for picking up and dropping the ash storage box (562), and a sealing plate (566) is detachably installed in the pick-up and drop hole (591).

4. The sludge carbonization waste gas treatment device according to claim 3, characterized in that: The pull-down mechanism (57) includes a first pull rope (571) fixedly installed at the bottom of the channel steel (561), and a first counterweight (572) is provided at the end of the first pull rope (571) away from the channel steel (561). The flip-plate unloading mechanism (10) includes two flip plates that rotate relative to each other up and down, and the first counterweight (572) is placed on the top of the flip plates. The reset mechanism (58) includes a second pull rope (581) fixedly installed on the top of the first baffle (541) and passing through the square tube (51). A second counterweight (582) is provided at one end of the second pull rope (581) away from the first baffle (541). A fixed pulley (583) for guiding the second pull rope (581) to turn is fixedly installed on the top of the square tube (51). A rectangular sleeve (584) for limiting the movement direction of the second counterweight (582) is provided on the outer wall of the square tube (51). The weight of the second counterweight (582) is greater than the sum of the weights of the ash removal mechanism (54) and the ash storage mechanism (56). The sum of the weights of the first counterweight (572), the ash removal mechanism (54), and the ash storage mechanism (56) is greater than the weight of the second counterweight (582).

5. The sludge carbonization waste gas treatment device according to claim 1, characterized in that: The top of the first baffle (541) away from the filter plate (53) is detachably provided with a limiting strip (8) for restricting the ash removal mechanism (54) from moving out of the square tube (51).

6. The sludge carbonization waste gas treatment device according to claim 1, characterized in that: The detection mechanism (6) includes a through hole (61) opened in the second baffle (542). A piston plate (62) is provided in the through hole (61). The piston plate (62) is slidably disposed in the through hole (61) and sealed to the through hole (61). A baffle (63) for limiting the movement distance of the piston plate (62) and a push switch (64) for sending wireless signals to the filter press are fixedly provided in the through hole (61). The piston plate (62) is located between the baffle (63) and the push switch (64), and the baffle (63) is located on the side of the piston plate (62) closer to the filter plate (53). A spring (65) is provided between the push switch (64) and the piston plate (62).

7. The sludge carbonization waste gas treatment device according to claim 1, characterized in that: The square tube (51) is provided with a guide mechanism (9) for guiding the dust scraper (543) to approach and move away from the filter plate (53).

8. The sludge carbonization waste gas treatment device according to claim 7, characterized in that: The guiding mechanism (9) includes a guide post (91) fixedly installed on the dust scraper (543) near the side plate (59). An annular guide groove (92) is provided in the square tube (51) to guide the movement of the guide post (91). Both the first baffle (541) and the second baffle (542) are provided with a shrinkage groove (93) for the dust scraper (543) to move away from the filter plate (53). The height of the shrinkage groove (93) on the side away from the filter plate (53) is higher than the height of the shrinkage groove (93) on the side close to the filter plate (53). The annular guide groove (92) is composed of an ascending section, a forward section, a descending section and a retracting section that are interconnected. The ascending section is parallel to the descending section. The angle of the forward section is the same as the angle of the shrinkage groove (93). A valve plate (94) is slidably installed in the square tube (51) to prevent the guide post (91) from moving upward from the descending section. The valve plate (94) is located at the junction of the descending section and the retracting section. When the guide post (91) is in the falling section, the dust scraper (543) is in contact with the filter plate (53), and when the guide post (91) is in the rising section, the dust scraper (543) is separated from the filter plate (53).

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