A solid waste incineration flue gas treatment device

Abstract

This invention discloses a treatment device for solid waste incineration flue gas, belonging to the field of flue gas treatment technology. The invention includes a dry filter and a waste gas inlet connected to one side of the dry filter. The output end of the dry filter is connected to a four-group diversion mechanism. This invention can reduce the airflow within the diversion mechanism when the flow rate is too high, avoiding the problem of premature saturation of the corresponding adsorption mechanism due to excessive flow in one or more diversion mechanisms. This ensures that each adsorption mechanism is in its optimal adsorption state, maintaining uniform and stable airflow to each diversion and adsorption mechanism. Simultaneously, the diversion mechanism utilizes a variable-diameter Venturi tube structure formed by a mechanical iris structure and a conical rubber sheet. This structure not only regulates the flow rate to ensure balanced and stable treatment but also maintains smooth and even airflow within the diversion mechanism, making it difficult for dust particles to adhere and ensuring uniform airflow diffusion.

Description

Technical Field

[0001] This invention belongs to the field of flue gas treatment technology, specifically, it relates to a device for treating flue gas from solid waste incineration. Background Technology

[0002] Solid waste incineration, such as the incineration of municipal solid waste and industrial solid waste, produces flue gas containing various pollutants such as dust. Direct emission of such flue gas can seriously harm the environment and human health. The core function of solid waste incineration flue gas treatment equipment is to remove various pollutants from the flue gas to below the national emission standards through a "multi-stage purification process" to ultimately achieve safe emission.

[0003] When existing solid waste incineration flue gas treatment devices are used, uneven airflow distribution during multiple adsorption processes can lead to premature saturation and overload of the corresponding adsorption structures. Furthermore, dust and sticky substances adhering to the lower surface of the adsorption layer are difficult to remove effectively by jet cleaning. If the dust and sticky substances are scraped off, prolonged excessive scraping and friction can easily damage the scraper blades and the adsorption layer. Moreover, jet cleaning and scraping processes often require separate control and adjustment equipment, which increases the setup cost.

[0004] Therefore, we propose a solid waste incineration flue gas treatment device to solve the problems mentioned above. Summary of the Invention

[0005] In view of the problems that uneven airflow distribution during multiple adsorption processes can lead to premature saturation and overload of the corresponding adsorption, and that excessive scraping and friction during the removal of dust and sticky substances can easily damage the scraper and adsorption layer, the present invention aims to provide a device for treating solid waste incineration flue gas.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: a solid waste incineration flue gas treatment device, including a dry filter and a waste gas inlet connected to the upper side of the dry filter, the output end of the dry filter is connected to a four-group flow mechanism, and an adsorption mechanism is connected above each flow mechanism, a catalytic combustion furnace is provided on the outer side of the adsorption mechanism, and an induced draft fan is provided on the output end side of the adsorption mechanism, and an exhaust pipe is connected above the induced draft fan.

[0007] Each of the group of flow mechanisms is equipped with a flow meter on its exterior. Each group of adsorption mechanisms is connected to a ventilation mechanism at the top inside, and the ventilation mechanism is connected to the induced draft fan and the exhaust pipe. An air outlet mechanism is provided on the upper sides of the interior of the adsorption mechanism, and an inspection port is installed on the lower exterior of the adsorption mechanism.

[0008] Furthermore, the diversion mechanism includes an installation tube that communicates with the adsorption mechanism. The front and rear ends of the installation tube are connected to diversion tubes, and the diversion tubes are connected to the dry filter, the installation tube, and the adsorption mechanism. A fixed plate is fixedly installed on one side of the inside of the installation tube, and a rotating plate is rotatably installed on the other side of the inside of the installation tube.

[0009] Furthermore, several sets of sliding blades are installed in a ring between the fixed disk and the rotating disk, and each set of sliding blades has a connecting slide rod fixed at both ends. Each set of connecting slide rods has a sliding groove on its outside, and the sliding grooves are distributed in a ring on the rotating disk and the fixed disk.

[0010] Furthermore, a geared motor is fixedly installed inside the upper part of the mounting tube, and a power gear is fixed at the output end of the geared motor. The bottom of the power gear is engaged with mating teeth, and the mating teeth are fixedly distributed in a fan shape on the upper surface of the rotating disk. Rubber sheets are fixed on both ends of the sliding blade.

[0011] Furthermore, the adsorption mechanism includes an adsorption box connected to the diversion pipe, and an adsorption layer is installed in the middle of the inner side of the adsorption box. A central shaft is fixedly installed in the middle of the adsorption layer. Fixing frames are fixed on both sides of the inside of the diversion pipe, and a rotating shaft is rotatably installed in the middle of the fixing frame. An impeller is fixed at the bottom of the rotating shaft, and connecting shafts are installed on both sides above the rotating shaft.

[0012] Furthermore, the rotating shaft includes a shaft seat disposed below one end of the connecting shaft, and fixing rods are fixed on both sides above the shaft seat;

[0013] The connecting shaft includes mounting cylinders slidably mounted on both sides above the rotating shaft, and a spring is fixedly mounted on one side of the mounting cylinder above and below. The mounting cylinder is elastically connected to the rotating shaft through the spring, and the mounting cylinder is slidably connected to the fixed rod.

[0014] Furthermore, a sliding cylinder is slidably mounted on the upper side of the mounting cylinder, and several groups of sliding cylinders are arranged around the mounting cylinder. A scraper is mounted on the top of each group of sliding cylinders, and a rotating connecting rod is rotatably mounted on the lower center of the sliding cylinder. The lower end of the rotating connecting rod is rotatably mounted on a fixed rod. A vent is opened in the middle of one side of the mounting cylinder.

[0015] Furthermore, the ventilation mechanism includes a ventilation pipe connected to the exhaust pipe, and a rotary joint is installed at the bottom of the ventilation pipe. The bottom of the rotary joint is mounted on a rotating shaft, and the rotating shaft is rotatably connected to the ventilation pipe through the rotary joint. A fixing plate is fixed inside the lower part of the rotary joint, and an air outlet is opened on one side of the surface of the fixing plate. An air inlet is opened on one side of the top of the rotating shaft.

[0016] Furthermore, the air outlet mechanism includes an inner cavity disposed in the middle of the inner side of the sliding cylinder, and a piston rod is slidably mounted on the upper inner side of the inner cavity. The top of the piston rod is fixedly connected to the scraper, and a second spring is fixedly mounted in the middle of the piston rod. The piston rod is elastically connected to the sliding cylinder through the second spring.

[0017] Furthermore, a vent hole is provided on the rear side of the piston rod surface, and a rotating valve plate is installed inside the lower part of the vent hole. A spring is fixed on one side above the rotating valve plate. A push rod is provided above the vent hole and is fixedly connected to the sliding cylinder. An air jet head is installed on the rear side above the sliding cylinder.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention can reduce the airflow in the diversion mechanism when the flow rate is too fast, avoiding the problem that the corresponding adsorption mechanism will become saturated prematurely due to excessive flow rate in one or more diversion mechanisms. This ensures that each adsorption mechanism is in the optimal adsorption state, so as to maintain the uniform and stable ventilation of each diversion mechanism and adsorption mechanism. At the same time, the variable diameter Venturi tube structure formed by the mechanical iris structure and the conical rubber sheet in the diversion mechanism can adjust the flow rate to ensure the processing balance and stability, while also keeping the ventilation of the diversion mechanism smooth and even, making it difficult for dust particles to adhere and ensuring uniform airflow diffusion.

[0020] 2. This invention can rely on the rotation of airflow to scrape away the dust and sticky substances adhering to the lower surface of the adsorption layer, thereby ensuring a long-lasting and effective ventilation effect within the adsorption mechanism. When the airflow speeds up, it can reduce the friction between the scraper and the adsorption layer, avoiding the problem of damage to the scraper and adsorption layer caused by excessive scraping friction. At the same time, relying on airflow to achieve the scraping effect and making scraping adjustments according to the airflow size can avoid the trouble and high cost of adding separate control and adjustment equipment.

[0021] 3. This invention can change the dust removal process from scraping to vibration cleaning of the adsorption layer under high-speed ventilation conditions. This ensures dust removal while avoiding the problem of accelerated wear caused by continuing scraping at high speed. At the same time, the gas filled into the adsorption mechanism and the scraping structure will eventually be sprayed out from the bottom of the scraper, which is beneficial for rinsing the surface of the scraper and the adsorption layer, ensuring the cleanliness of the scraping process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0023] Figure 2 This is a cross-sectional three-dimensional structural diagram of the mounting tube of the present invention;

[0024] Figure 3 This is a cross-sectional three-dimensional structural diagram of the mounting tube of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the rotating disk of the present invention;

[0026] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the adsorption box of the present invention;

[0027] Figure 6 This is a partial cross-sectional view of the internal three-dimensional structure of the mounting cylinder of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0029] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B;

[0030] Figure 9 This is a cross-sectional three-dimensional structural diagram of the vent hole of the present invention.

[0031] In the diagram: 1. Dry filter; 2. Exhaust gas inlet; 3. Diversion mechanism; 31. Installation pipe; 32. Diversion pipe; 33. Fixed plate; 34. Rotating plate; 35. Sliding blade; 36. Connecting slide rod; 37. Slide groove; 38. Gear motor; 39. Power gear; 310. Mating gear; 311. Rubber sheet; 4. Adsorption mechanism; 41. Adsorption box; 42. Adsorption layer; 43. Central shaft; 44. Fixing frame; 45. Impeller; 46. Rotating shaft; 461. Shaft seat; 462. Fixed rod; 47. Connecting shaft; 471. Installation plate. 472. Spring 1; 473. Sliding cylinder; 474. Scraper; 475. Rotating connecting rod; 476. Vent; 5. Catalytic combustion furnace; 6. Exhaust fan; 7. Exhaust pipe; 8. Venting mechanism; 81. Venting pipe; 82. Rotary joint; 83. Fixing plate; 84. Air outlet; 85. Air inlet; 9. Air outlet mechanism; 91. Inner cavity; 92. Piston rod; 93. Spring 2; 94. Push rod; 95. Jet nozzle; 96. Vent; 97. Rotating valve plate; 98. Spring 3; 10. Inspection port; 20. Flow meter. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments.

[0033] To address the issue of uneven airflow distribution during multiple adsorption processes, which can lead to premature saturation and overload of the corresponding adsorption units, such as... Figure 1 - Figure 4 As shown:

[0034] A solid waste incineration flue gas treatment device includes a dry filter 1 and a waste gas inlet 2 connected to the upper side of the dry filter 1. The waste gas inlet 2 introduces the flue gas from the solid waste incineration into the dry filter 1. The dry filter 1 removes particulate matter such as dust from the flue gas, preventing contamination of subsequent equipment such as activated carbon and catalysts, and ensuring stable system operation. The output end of the dry filter 1 is connected to a four-group diversion mechanism 3, which is connected in parallel to the output pipe of the dry filter 1. Each diversion mechanism 3 is connected to an adsorption mechanism 4 above it. The adsorption mechanism 4 is an activated carbon adsorption treatment box. The diversion mechanism 3 can divert the gas flow from the dry filter 1 to the adsorption mechanism 4 for adsorption treatment. A catalytic combustion furnace 5 is installed on the outer side of the adsorption mechanism 4. An induced draft fan 6 is installed on one side of the outlet, and an exhaust pipe 7 is connected above the induced draft fan 6. When the activated carbon adsorption of the adsorption mechanism 4 is saturated, the system starts the adsorption mechanism 4 and the catalytic combustion furnace 5 to circulate. The hot airflow desorbs the waste gas adsorbed by the activated carbon and sends it into the catalytic combustion furnace 5. The catalyst in the furnace can reduce the oxidation temperature of the waste gas, so that the waste gas reacts with oxygen and is completely decomposed into harmless CO2 and H2O. At the same time, the heat released can be recovered for activated carbon desorption or waste gas preheating, which greatly reduces energy consumption. The induced draft fan 6 provides power for the flow of waste gas, ensuring that the waste gas passes through each treatment unit in sequence. The exhaust pipe 7 discharges the purified and qualified gas at high altitude. The mutual cooperation principle between the dry filter 1, the adsorption mechanism 4, the catalytic combustion furnace 5 and the induced draft fan 6 is a known technology of existing catalytic combustion equipment, and will not be described in detail in this case.

[0035] Each diversion mechanism 3 is externally equipped with a flow meter 20, which is connected to the flow pipe of the diversion mechanism 3. The flow meter 20 can monitor the gas flow rate into each diversion mechanism 3. Each diversion mechanism 3 has a pipe diameter adjustment mechanism with a mechanical iris structure inside the pipe. The adjustment mechanism and the pipe are connected by a high-temperature resistant conical rubber ring. When the mechanical iris adjusts the pipe diameter, the elasticity of the rubber ring can expand and contract with the change of diameter at the throat of the pipe. This allows the conical rubber ring and the mechanical iris structure to form a Venturi tube structure inside the pipe. As a result, when the diversion mechanism 3 normally flows the gas into the adsorption mechanism 4, the airflow will have an acceleration effect from the diversion mechanism 3, which strengthens the flow velocity of the gas entering the adsorption mechanism 4 and thus improves the treatment effect.

[0036] When each flow meter 20 detects that the flow rate in the corresponding diversion mechanism 3 has increased and exceeded the preset value, in conjunction with the control of the external controller, the mechanical iris structure in the corresponding diversion mechanism 3 can expand, causing the rubber ring to expand. At this time, the pipe diameter in the diversion mechanism 3 will be enlarged due to the excessively fast flow rate, resulting in an enlarged venturi throat. This reduces the airflow in the diversion mechanism 3 when the flow rate is too high, preventing one or more diversion mechanisms 3 from having excessively high flow rates, which could lead to premature saturation of the corresponding adsorption mechanism 4. This ensures that each adsorption mechanism 4 can handle the situation effectively. To maintain the optimal adsorption state and ensure uniform and stable airflow in each diversion mechanism 3 and adsorption mechanism 4, the diversion mechanism 3 utilizes a mechanical iris structure and a conical rubber ring to form a variable-diameter Venturi tube structure. This not only regulates the flow rate to ensure balanced and stable processing, but also maintains smooth and even airflow in the diversion mechanism 3, making it difficult for dust particles to adhere and ensuring uniform airflow diffusion. This avoids the problem of eddies and airflow impacts near the valve plate that can easily occur when adjusting the flow rate valve, which would affect the smoothness and uniform distribution of the airflow. Additionally, the valve plate gap of the flow rate valve can easily trap dust and cause blockage.

[0037] A rotating mechanism is installed inside the pipe connecting the diversion mechanism 3 and the adsorption mechanism 4. The airflow accelerated by the diversion mechanism 3 drives the rotating mechanism to rotate. Above the rotating mechanism is a horizontal scraping structure, which is located on the lower surface of the adsorption filter layer in the adsorption mechanism 4. When the airflow drives the rotating mechanism to rotate, the scraping structure rotates synchronously on the lower surface of the adsorption filter layer, thereby scraping away the dust and sticky substances adhering to the lower surface of the adsorption filter layer to ensure long-term effective ventilation within the adsorption mechanism 4. An elastic, expandable structure is installed between the horizontal scraping structure and the rotating mechanism. When the airflow entering the adsorption mechanism 4 increases, the rotating mechanism... The mechanism's rotation speed will increase. Under the centrifugal force of the increased rotation speed, the scraping structure will extend slightly outward from the rotating mechanism. When the scraping structure extends, the scraper above the scraping structure will retract slightly, thereby slightly separating the scraping structure from the lower surface of the adsorption filter layer inside the adsorption mechanism 4. As the rotation speed of the rotating mechanism and the scraping structure increases due to the increased airflow, the friction between the scraper and the adsorption filter layer can be reduced, avoiding the problem of damage to the scraper and the adsorption filter layer caused by excessive scraping friction. At the same time, the scraping effect is achieved by relying on the airflow, and the scraping adjustment is made according to the airflow size, which can avoid the trouble and high cost of adding a separate control and adjustment device.

[0038] Each adsorption unit 4 has a ventilation mechanism 8 connected to its upper interior, which is also connected to the exhaust fan 6 and the exhaust pipe 7. Air outlet mechanisms 9 are located on the upper sides of both sides of the adsorption unit 4. When the exhaust fan 6 discharges the purified gas, some airflow is channeled through the ventilation mechanism 8 into the rotating mechanism and scraping structure within the adsorption unit 4. The rotating mechanism and ventilation mechanism 8 are connected via a rotating joint, and an intermittent air intake structure is provided at the rotating joint. As the rotating mechanism rotates within the adsorption unit 4, air is intermittently supplied to the rotating mechanism and scraping structure. When the scraping structure is intermittently supplied with air, the air outlet mechanism 9, under the intermittent air pressure, causes the scraper blades of the scraping structure to continuously extend and retract. Thus, when the rotating mechanism within the adsorption unit 4 rotates at low speed due to the low-speed airflow, the continuously extending scraper blades improve the adhesion between the scraper and the adsorption filter layer, ensuring sufficient scraping force even at low speeds, effectively removing accumulated dust and sticky substances. This design achieves a high-speed cleaning effect while avoiding wear caused by continuous excessive scraping. The rotating mechanism rotates at high speed due to the high-speed airflow, and when the scraping structure retracts and separates from the adsorption filter layer surface, the frequency of intermittent air filling increases, ultimately accelerating the frequency of scraper ejection. This rapid ejection and retraction of the scraper impacts and vibrates the lower surface of the adsorption filter layer, effectively changing the high-speed airflow state to a vibration cleaning process. This ensures dust removal while avoiding the accelerated wear caused by continuous scraping at high speeds. The gas injected into the scraping structure within the adsorption mechanism 4 is ultimately ejected upwards from below the scraper, effectively rinsing the scraper and the adsorption filter layer surface, ensuring the cleanliness of the scraping process. An inspection port 10 is installed on the lower exterior of the adsorption mechanism 4, allowing impurities scraped off inside to fall to the bottom of the adsorption mechanism 4 housing. After prolonged use, the impurities can be removed using the inspection port 10.

[0039] The diversion mechanism 3 includes an installation pipe 31 that communicates with the adsorption mechanism 4. The front and rear ends of the installation pipe 31 are connected to the diversion pipe 32, and the diversion pipe 32 is connected to the dry filter 1, the installation pipe 31 and the adsorption mechanism 4. The gas treated by the dry filter 1 can be passed into the adsorption mechanism 4 for treatment through the diversion pipe 32 and the installation pipe 31. A fixed disk 33 is fixedly installed on one side of the inside of the installation pipe 31, and a rotating disk 34 is rotatably installed on the other side of the inside of the installation pipe 31. The fixed disk 33 and the rotating disk 34 are annular disks.

[0040] Several sets of sliding blades 35 are annularly installed between the fixed disk 33 and the rotating disk 34, and each set of sliding blades 35 has a connecting slide rod 36 fixed at both ends. Each set of connecting slide rods 36 has a sliding groove 37 on its outside, and the sliding grooves 37 are annularly distributed on the rotating disk 34 and the fixed disk 33. When the rotating disk 34 rotates alone while the fixed disk 33 remains stationary, the sliding blades 35 can contract and expand by using the connecting slide rods 36 and the sliding grooves 37, thereby forming the existing mechanical iris structure, which can be used for subsequent pipe diameter adjustment.

[0041] A geared motor 38 is fixedly installed inside the upper part of the mounting tube 31, and a power gear 39 is fixedly installed at the output end of the geared motor 38. The bottom of the power gear 39 is engaged with mating teeth 310, and the mating teeth 310 are fixedly distributed in a fan shape on the upper surface of the rotating disk 34. The servo-type geared motor 38 can drive the power gear 39 to rotate. Utilizing the engagement of the power gear 39 and the mating teeth 310, under the action of meshing force, the rotating disk 34 can ultimately be driven to rotate, thereby realizing the diameter-changing action of contraction and expansion of the sliding blade 35. Rubber sheets 311 are fixed to both ends of the sliding blade 35. 311 is made of elastic, high-temperature resistant silicone rubber. One end of the rubber sheet 311 is fixed to the outer surface of the sliding blade 35 of each group, and the other end is fixed to the inner surface of the diversion tube 32. The rubber sheet 311 has a smaller diameter on the side of the sliding blade 35 and a larger diameter on the side of the diversion tube 32. This allows the sliding blade 35 and the rubber sheet 311 to form a Venturi tube structure in the diversion tube 32. This allows the airflow to be accelerated when it flows through the channel formed by the rubber sheet 311 and the sliding blade 35 via the diversion tube 32. This strengthens the airflow velocity entering the adsorption mechanism 4, thereby improving the treatment effect.

[0042] When each flow meter 20 detects that the flow rate in the corresponding diverter tube 32 has increased and exceeded the preset value, the corresponding geared motor 38 can be activated in conjunction with the control of the external controller. This drives the rotating disk 34 to rotate, causing the sliding blades 35 to expand. The sliding blades 35 of the mechanical iris structure drive the rubber sheet 311 to expand. At this time, the diameter of the diverter tube 32 will be enlarged due to the excessively high flow rate, thus expanding the throat of the formed Venturi tube. This can reduce the airflow in the diverter tube 32 due to the excessively high flow rate, preventing the corresponding adsorption mechanism 4 from becoming prematurely saturated due to excessive flow in one or more diverter tubes 32. Each adsorption mechanism 4 can be in the optimal adsorption state to maintain uniform and stable airflow between each diversion mechanism 3 and adsorption mechanism 4. At the same time, the variable diameter Venturi tube structure formed by the sliding blade 35 of the mechanical iris structure and the rubber sheet 311 can adjust the flow rate to ensure the stable and balanced treatment, while also keeping the airflow of the diversion pipe 32 smooth and unobstructed. This makes it difficult for dust particles to adhere, ensures uniform airflow diffusion, and avoids the problem of eddies and airflow impacts that can easily be generated near the valve plate when using flow valve adjustment, which would affect the smoothness and uniform distribution of airflow. It also avoids the problem of dust getting stuck in the valve plate gap and causing blockage when using flow valve.

[0043] To address the issue of prolonged, excessive scraping during dust removal causing friction damage between the scraper blades and the adsorption structure, and the problem that separately installing control and cleaning adjustment equipment would increase setup costs, such as... Figure 1 as well as Figure 5 and Figure 6 As shown:

[0044] The adsorption mechanism 4 includes an adsorption box 41 connected to the diversion pipe 32, and an adsorption layer 42 is installed in the middle of the inner side of the adsorption box 41. The adsorption layer 42 is an activated carbon adsorption filter layer. A central shaft 43 is fixedly installed in the middle of the adsorption layer 42. Fixing frames 44 are fixed on both sides inside the diversion pipe 32, and a rotating shaft 46 is rotatably installed in the middle of the fixing frame 44. An impeller 45 is fixed at the bottom of the rotating shaft 46. When the airflow flows through the accelerated diversion pipe 32, it can drive the impeller 45 to rotate. The shaft 46 rotates on the fixed frame 44. Connecting shafts 47 are installed on both sides above the rotating shaft 46. When the rotating shaft 46 rotates, it can synchronously drive the connecting shafts 47 to rotate. A scraper is provided on the upper surface of the connecting shaft 47, and the scraper is attached to the lower surface of the adsorption layer 42. When the connecting shaft 47 and the scraper rotate circumferentially on the lower surface of the adsorption layer 42, the dust and sticky substances adhering to the lower surface of the adsorption layer 42 can be scraped off to ensure a long-term and effective ventilation effect in the adsorption mechanism 4.

[0045] The rotating shaft 46 includes a shaft seat 461 disposed below one end of the connecting shaft 47, and fixing rods 462 are fixed on both sides above the shaft seat 461.

[0046] The connecting shaft 47 includes mounting cylinders 471 that are slidably mounted on both sides above the rotating shaft 46. A spring 472 is fixedly mounted on one side of the mounting cylinder 471. The mounting cylinder 471 is elastically connected to the rotating shaft 46 through the spring 472. The mounting cylinder 471 is slidably connected to the fixed rod 462. When the airflow into the adsorption box 41 increases, the rotation speed of the impeller 45 and the rotating shaft 46 will increase. At this time, under the action of centrifugal force of the increased rotation speed, the mounting cylinder 471 will move to the outside of the rotating shaft 46 to compress the spring 472. Thus, the accelerated centrifugal force can be used to make the subsequent scraper blades retract.

[0047] A sliding cylinder 473 is slidably mounted on the upper side of the mounting cylinder 471, and several groups of sliding cylinders 473 are arranged around the mounting cylinder 471. A scraper 474 is mounted on the top of each group of sliding cylinders 473, and a rotating connecting rod 475 is rotatably mounted on the lower middle part of the sliding cylinder 473. The lower end of the rotating connecting rod 475 is rotatably mounted on the fixed rod 462. When the mounting cylinder 471 moves outward from the rotating shaft 46 due to centrifugal force, it will synchronously drive the sliding cylinder 473 and the scraper 474 to move. At this time, the mounting cylinder 471 will slide relative to the fixed rod 462. Under the pull of the rotating connecting rod 475, the sliding cylinder 473 and the scraper 474 will move towards the mounting cylinder 471. The internal movement of the scraper 474 causes it to move downward and separate from the lower surface of the adsorption layer 42. As the rotational speed of the rotating shaft 46 and the mounting cylinder 471 increases due to the increased airflow, the scraper 474 can eventually move downward, reducing the friction between the scraper 474 and the adsorption layer 42. This avoids the problem of damage to the scraper 474 and the adsorption layer 42 due to excessive scraping friction. At the same time, the scraping effect is achieved by relying on the airflow, and the scraping adjustment is made according to the airflow size. This avoids the trouble and high cost of adding a separate control and adjustment device. A vent 476 is opened in the middle of one side of the mounting cylinder 471, which allows airflow to enter the mounting cylinder 471.

[0048] To address the issues of wear and tear and difficulty in effectively removing adhering impurities by relying solely on scraping or blowing, such as... Figure 1 as well as Figures 5-9 As shown:

[0049] The ventilation mechanism 8 includes a ventilation pipe 81 connected to the exhaust pipe 7, and a rotary joint 82 is installed at the bottom of the ventilation pipe 81. The bottom of the rotary joint 82 is mounted on the rotating shaft 46, and the rotating shaft 46 is rotatably connected to the ventilation pipe 81 through the rotary joint 82. When the rotating shaft 46 rotates, the rotary joint 82 can ensure smooth rotation and prevent the ventilation pipe 81 from getting tangled. A fixing plate 83 is fixed inside the lower part of the rotary joint 82, and an air outlet 84 is opened on one side of the surface of the fixing plate 83. An air inlet 85 is opened on one side of the top of the rotating shaft 46. When the rotating shaft 46 rotates between the rotary joint 82, the air inlet 85 and the air outlet 84 will alternately overlap, so that the airflow in the ventilation pipe 81 can be intermittently introduced into the rotating shaft 46. At the same time, the intermittent airflow can be introduced into the mounting cylinder 471 through the ventilation port 476, so as to use the intermittently introduced airflow for subsequent vibration dust removal treatment.

[0050] The air outlet mechanism 9 includes an inner cavity 91 located in the middle of the inner side of the sliding cylinder 473. A piston rod 92 is slidably mounted on the upper inner side of the inner cavity 91, and the top of the piston rod 92 is fixedly connected to the scraper 474. A spring 93 is fixedly mounted in the middle of the piston rod 92, and the piston rod 92 is elastically connected to the sliding cylinder 473 through the spring 93. Under the action of intermittent air pressure, the piston rod 92 can continuously compress the spring 93 to move upward and rebound using the spring 93. This causes the piston rod 92 to drive the scraper 474 to continuously push out and retract. Thus, when the rotating shaft 46 rotates at low speed due to the low-speed airflow, the continuously pushed-out scraper 474 can improve the adhesion between itself and the adsorption layer 42, ensuring low-speed rotation. In the rotating state, there is sufficient scraping force to ensure the effective removal of accumulated dust and sticky substances, while also avoiding the wear problem caused by continuous scraping. At the same time, the rotating shaft 46 rotates at high speed due to high-speed airflow, causing the scraper 474 to eventually separate from the surface of the adsorption layer 42 due to centrifugal force. At this time, the frequency of intermittent air inflation will increase, which will eventually increase the frequency of continuously pushing out the scraper 474. The rapid pushing and retraction of the scraper 474 will have an impact vibration effect on the lower surface of the adsorption layer 42, so that the scraper 474 will be used to vibrate and clean the adsorption layer 42 in the high-speed air circulation state. This ensures dust removal while avoiding the problem of accelerated wear caused by continuing to scrape at high speed.

[0051] A vent hole 96 is provided on the rear side of the piston rod 92, and a rotating valve plate 97 is installed inside the lower part of the vent hole 96. A spring 98 is fixed on one side above the rotating valve plate 97, and a limit block is provided on one side above the rotating valve plate 97, so that the rotating valve plate 97 can only rotate downward to open the vent hole 96 under the action of the spring 98. A push rod 94 is provided above the vent hole 96, and the push rod 94 is fixedly connected to the sliding cylinder 473. An air jet head 95 is installed on the rear side of the upper part of the sliding cylinder 473. As the air pressure moves upward, the push rod 94 pushes the rotating valve plate 97, causing the rotating valve plate 97 to rotate and open towards the lower side of the vent 96. This allows the airflow to flow upward through the vent 96 and eventually be ejected from the jet nozzle 95. The jet nozzle 95 is located below the side of the scraper 474, so the ejected gas is used to effectively wash the surface of the scraper 474 and the adsorption layer 42, ensuring the cleanliness of the scraper 474 itself and further improving the cleaning effect on the lower surface of the adsorption layer 42.

[0052] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 device for treating solid waste incineration flue gas, comprising a dry filter (1) and a waste gas inlet (2) connected to one side above the dry filter (1), characterized in that: The output end of the dry filter (1) is connected to a four-group flow mechanism (3), and an adsorption mechanism (4) is connected above each flow mechanism (3). A catalytic combustion furnace (5) is provided on the outer side of the adsorption mechanism (4), and an induced draft fan (6) is provided on the output end side of the adsorption mechanism (4). An exhaust pipe (7) is connected above the induced draft fan (6). Each of the group of flow mechanisms (3) is equipped with a flow meter (20) on its exterior. Each of the adsorption mechanisms (4) is connected to a ventilation mechanism (8) on its interior top. The ventilation mechanism (8) is connected to the blower (6) and the exhaust pipe (7). An air outlet mechanism (9) is provided on the upper sides of the interior of the adsorption mechanism (4). An inspection port (10) is installed on the lower exterior of the adsorption mechanism (4). The diversion mechanism (3) includes an installation pipe (31) that communicates with the adsorption mechanism (4). The front and rear ends of the installation pipe (31) are connected to a diversion pipe (32), and the diversion pipe (32) is connected to the dry filter (1), the installation pipe (31) and the adsorption mechanism (4). A fixed plate (33) is fixedly installed on one side of the inside of the installation pipe (31), and a rotating plate (34) is rotatably installed on the other side of the inside of the installation pipe (31). The adsorption mechanism (4) includes an adsorption box (41) connected to the diversion pipe (32), and an adsorption layer (42) is installed in the middle of the inner side of the adsorption box (41). A central shaft (43) is fixedly installed in the middle of the adsorption layer (42). Fixing frames (44) are fixed on both sides inside the diversion pipe (32). A rotating shaft (46) is rotatably installed in the middle of the fixing frame (44). An impeller (45) is fixed at the bottom of the rotating shaft (46). Connecting shafts (47) are installed on both sides above the rotating shaft (46). The rotating shaft (46) includes a shaft seat (461) located below one end of the connecting shaft (47), and fixing rods (462) are fixed on both sides above the shaft seat (461). The connecting shaft (47) includes mounting cylinders (471) that are slidably mounted on both sides above the rotating shaft (46), and a spring (472) is fixedly mounted on one side of the mounting cylinder (471) above and below. The mounting cylinder (471) is elastically connected to the rotating shaft (46) through the spring (472), and the mounting cylinder (471) is slidably connected to the fixing rod (462). A sliding cylinder (473) is slidably mounted on the upper side of the mounting cylinder (471), and several groups of sliding cylinders (473) are provided about the mounting cylinder (471). A scraper (474) is mounted on the top of each group of sliding cylinders (473), and a rotating connecting rod (475) is rotatably mounted on the lower middle part of the sliding cylinder (473). The lower end of the rotating connecting rod (475) is rotatably mounted on the fixed rod (462). A vent (476) is opened in the middle of one side of the mounting cylinder (471). The ventilation mechanism (8) includes a ventilation pipe (81) connected to the exhaust pipe (7), and a rotary joint (82) is installed at the bottom of the ventilation pipe (81). The bottom of the rotary joint (82) is installed on the rotating shaft (46), and the rotating shaft (46) is rotatably connected to the ventilation pipe (81) through the rotary joint (82). A fixing plate (83) is fixed inside the lower part of the rotary joint (82), and an air outlet (84) is opened on one side of the surface of the fixing plate (83). An air inlet (85) is opened on one side of the top of the rotating shaft (46). The air outlet mechanism (9) includes an inner cavity (91) located in the middle of the inner side of the sliding cylinder (473), and a piston rod (92) is slidably installed on the upper inner side of the inner cavity (91). The top of the piston rod (92) is fixedly connected to the scraper (474). A second spring (93) is fixedly installed in the middle of the piston rod (92), and the piston rod (92) is elastically connected to the sliding cylinder (473) through the second spring (93).

2. The solid waste incineration flue gas treatment device according to claim 1, characterized in that, Several sets of sliding blades (35) are installed in a ring between the fixed disk (33) and the rotating disk (34), and each set of sliding blades (35) has a connecting slide rod (36) fixed at both ends. Each set of connecting slide rods (36) has a sliding groove (37) on its outside, and the sliding grooves (37) are distributed in a ring on the rotating disk (34) and the fixed disk (33).

3. The solid waste incineration flue gas treatment device according to claim 2, characterized in that, A geared motor (38) is fixedly installed inside the upper part of the mounting tube (31), and a power gear (39) is fixed at the output end of the geared motor (38). The bottom of the power gear (39) is engaged with a mating tooth (310), and the mating tooth (310) is fixedly distributed in a fan shape on the upper surface of the rotating disk (34). Rubber sheets (311) are fixed on both ends of the sliding blade (35).

4. The solid waste incineration flue gas treatment device according to claim 1, characterized in that, A vent hole (96) is provided on the rear side of the surface of the piston rod (92), and a rotating valve plate (97) is installed inside the lower part of the vent hole (96). A spring three (98) is fixed on one side above the rotating valve plate (97). A push rod (94) is provided above the vent hole (96), and the push rod (94) is fixedly connected to the sliding cylinder (473). An air jet head (95) is installed on the rear side above the sliding cylinder (473).

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