Tail gas purification and heat recovery device for a regenerative thermal incinerator

Abstract

The present invention discloses an exhaust gas purification and heat recovery device for a regenerative thermal incinerator, which includes a purification tower and a water tank pump chamber. The purification tower includes an emission section and a primary heat recovery section fixedly arranged on the upper and lower sides of the secondary heat recovery section. The water tank pump chamber is fixedly arranged on one side of the primary heat recovery section. An aeration inlet pipe is arranged inside the primary heat recovery section. A main filter screen is movably arranged above the aeration inlet pipe inside the primary heat recovery section, and a partition filter screen is movably arranged inside the main filter screen. A second stabilizing frame is fixedly arranged above the inner side of the primary heat recovery section, and a first stabilizing frame is fixedly arranged below the inner side of the emission section. A secondary heat absorption mechanism is movably connected inside the secondary heat recovery section through the first stabilizing frame and the second stabilizing frame. The secondary heat absorption mechanism includes an axial center rod and spiral fin plates fixed on the surface of the axial center rod. Through the arrangement of the main filter screen and the partition filter screen, the present invention can effectively divide the bubbles and is also convenient for the decontamination operation of the main filter screen.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly relates to a tail gas purification and heat recovery device for a regenerative thermal incinerator. Background Art

[0002] A thermal incinerator is a device used to treat and destroy waste. It decomposes organic materials into relatively harmless gases and ashes through high-temperature oxidation, and is widely used in the treatment of industrial waste, medical waste, municipal solid waste, and hazardous waste. Its main advantages include reducing the volume of waste, reducing the toxicity and potential hazards of the treated waste, and being able to effectively treat substances that are difficult to degrade. Its basic working principle is to burn the waste at a high temperature, decompose harmful substances into carbon dioxide, water vapor, and other harmless gases through complete combustion. The heat energy generated during the incineration process can also be recycled, such as for power generation or heating. This heat energy usually exists in the tail gas after incineration. After the tail gas undergoes primary treatment to meet the emission standards, it generally undergoes further purification treatment and heat recovery;

[0003] Currently, in the process of purifying and treating incineration tail gas, a water filtration scheme is often adopted. Its basic principle is to pass the tail gas into the water body in the form of bubbles. During the rising process of the bubbles, the impurity particles in the bubbles and the heat carried by the bubbles can be effectively absorbed by the water body, thereby achieving the purification and recovery effect;

[0004] However, in the prior art, after the tail gas enters the bottom of the water tank in the form of bubbles, the continuous introduction of the tail gas will cause the bubbles in the water body to be relatively large, and the rising process of the bubbles is relatively fast, resulting in a relatively short actual heat recovery time and the attachment time of particles in the water body. There are problems of low tail gas heat energy recovery efficiency and poor tail gas purification effect.

[0005] Therefore, how to provide a tail gas purification and heat recovery device for a regenerative thermal incinerator is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] An object of the present invention is to provide a tail gas purification and heat recovery device for a regenerative thermal incinerator. Through the setting of the main filter screen and the partition filter screen, the present invention can effectively perform the segmentation operation on the bubbles, and at the same time, it is also convenient for the decontamination operation of the main filter screen.

[0007] According to an embodiment of the present invention, a tail gas purification and heat recovery device of a heat storage type thermal incinerator comprises a purification tower and a water tank pump chamber, wherein the purification tower comprises a discharge section and a primary heat recovery section fixedly arranged at upper and lower sides of a secondary heat recovery section, the water tank pump chamber is fixed at one side of the primary heat recovery section, an aeration inlet pipe is arranged inside the primary heat recovery section, a main filter is movably arranged near the top of the aeration inlet pipe inside the primary heat recovery section, a partition filter is movably arranged inside the main filter, a second stabilizing frame is fixed above the inner side of the primary heat recovery section, a first stabilizing frame is fixed below the inner side of the discharge section, a secondary heat absorbing mechanism is movably connected inside the secondary heat recovery section through the first stabilizing frame and the second stabilizing frame, the secondary heat absorbing mechanism comprises an axial rod and a spiral plate fixed on the surface of the axial rod, and the axial rod is rotatably arranged between the first stabilizing frame and the second stabilizing frame;

[0008] A transmission separation mechanism is arranged above the primary heat recovery section. The transmission separation mechanism includes a motor and a telescopic assembly. The motor and the telescopic assembly are both fixed outside the primary heat recovery section. The output shaft of the motor is connected to the split filter through the dewashing mechanism and drives the split filter to perform a circular pendulum motion in the main filter.

[0009] The de-washing mechanism is arranged below the second stabilizing frame, and comprises a swinging rod, a clutch assembly and a reciprocating pushing assembly. Both sides of the swinging rod are movably connected with the clutch assembly and the reciprocating pushing assembly respectively. The de-washing mechanism is connected to the motor through a telescopic assembly, and the telescopic assembly can realize the transmission docking and separation between the motor and the de-washing mechanism and the split filter screen.

[0010] One side of the reciprocating pushing assembly is connected to the pressure plate through transmission, the swing rod is fixed on the output rod at the bottom of the telescopic rod, the telescopic cylinder at the top of the telescopic rod is fixed under the second stable frame, the reciprocating pushing assembly drives the convex pin sliding shaft fixed at the center of the connecting frame rod to move up and down, the split filter is fixed at the bottom of the connecting frame rod, and the bottom of the main filter is elastically connected to the secondary heat recovery section through the spring blocking rod.

[0011] Furthermore, the output shaft of the motor is connected to the spline cylinder located on the inner side of the primary heat recovery section through a pulley assembly. A spline shaft is telescopically slidable on one side of the spline cylinder. A first bevel tooth is fixed at one end of the spline shaft. The first bevel tooth is vertically meshed with a second bevel tooth fixed on the surface of the shaft rod. The motor drives the spline cylinder and the spline shaft to rotate and directly drives the shaft rod to rotate at the center of the second stable frame through the meshing effect of the first bevel tooth and the second bevel tooth.

[0012] Furthermore, a sun gear is fixed to the bottom end of the shaft rod, a planet gear is meshed on one side of the sun gear, the planet gear is meshed with a gear ring on the side away from the sun gear, the gear ring is fixed in the primary heat recovery section through an external connecting rod, the planet gear sliding sleeve is arranged on the surface of the convex pin sliding shaft, the convex pin sliding shaft is fixed at the center position of the top of the connecting frame rod and is coaxial with the center of the dividing filter screen.

[0013] Further, the telescopic assembly includes an electric telescopic cylinder and a coupling rod. One end of the coupling rod is fixed to the output end of the electric telescopic cylinder fixed on the surface of the primary heat recovery section. The other end of the coupling rod is movably connected to the spline shaft through a limit bearing seat. The coupling rod drives the spline shaft to telescopically move on one side of the spline cylinder through the electric telescopic cylinder.

[0014] Further, a driving bevel gear is fixedly connected to the surface of the spline shaft. The clutch assembly includes two groups of turntables and mating bevel gears. The mating bevel gears are fixed on one side of the turntables and are engaged and butted on both sides of the driving bevel gear. A connecting pin is fixedly connected to the side of the turntable away from the mating bevel gear. The connecting pin is movably connected to the shaft hole on one side of the swing rod. The turntable is limited and moves under the second stabilizing frame through a side plate.

[0015] Further, the reciprocating pressing assembly includes a limit slider and a pressure rod. One side of the limit slider is movably connected to the side of the swing rod away from the clutch assembly through a shaft pin. A vertical moving groove is formed on the other side of the limit slider away from the swing rod.

[0016] Further, the middle position of the pressure rod slides in the vertical moving groove through a fixed movable pin. A stabilizing slider is movably connected above the pressure rod. The stabilizing slider linearly slides in the chute at the bottom of the second stabilizing frame. The lower part of the pressure rod is movably connected to a pressing piece through a side plate. The surface of the limit slider is slidably connected to the limit slide rod at the bottom of the second stabilizing frame through a formed chute.

[0017] Further, the spiral fin plate is located inside the secondary heat recovery section and contacts the inner wall of the secondary heat recovery section. A spiral water groove is formed inside the spiral fin plate, and the spiral water groove has the same outer shape structure as the spiral fin plate.

[0018] Further, the ports of the spiral water grooves at the bottom of the spiral fin plate are respectively connected to a hose and an atomizing sprayer through closed end caps. One end of the hose is fixedly communicated with the water tank pump chamber through a stop valve. The atomizing sprayer is communicated with the end cap of the spiral water groove through a one-way pressure valve.

[0019] Further, the ports of the spiral water grooves at the top of the spiral fin plate are fixedly connected to an annular sliding sleeve through a connecting pipe. The annular sliding sleeve is rotatably arranged at the bottom of the water storage layer through a sealing bearing. The water storage layer is fixed at the inner bottom end of the discharge section. The bottom of the water storage layer is communicated with the annular sliding sleeve. A water inlet pipe is externally connected to the top of the water storage layer.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides a main filter and a split filter. The main filter is placed in the water body in the primary heat recovery section under the installation, so that the bubbles from the aeration inlet pipe to the primary heat recovery section are separated and processed through the main filter. On the one hand, the main filter can perform surface adsorption of particulate impurities in the bubbles. On the other hand, the split filter is driven by the motor and driven by the sun gear, planetary gear and ring gear, so that the split filter is eccentrically rotated with the center of the main filter as the axis, thereby further dividing the bubble size, making the bubbles more uniform inside the water body of the primary heat recovery section, and achieving the effect of efficiently adsorbing the heat of the bubbles.

[0022] The present invention provides a de-washing mechanism. When the bottom surface of the main filter needs to be cleaned, the telescopic assembly can be started to move the spline shaft on one side of the spline cylinder, so that the first bevel gear is separated from the second bevel gear, and the active bevel gear is engaged with the two sets of docking bevel gears. At this time, the motor will not drive the split filter to swing and rotate after being driven, but the swing of the swing rod pulls one end of the pressure rod downward to apply pressure, so that the pressure plate applies pressure to the top of the convex pin sliding shaft, and the convex pin sliding shaft is fixed at the center position of the top of the connecting frame rod. The split filter is forced to drive the main filter to move downward to squeeze the spring blocking rod, and the main filter is reciprocated in this way to achieve the up and down de-washing operation of the main filter as a whole in the water body.

[0023] The present invention sets up a secondary heat absorption mechanism. After the bubbles emerge from the water surface, if it is detected that the exhaust gas temperature is still high, the exhaust gas will spiral up in the secondary heat recovery section through the intervals between the spiral blade plates, and the top of the spiral blade plate is rotatably connected to the aquifer through an annular sleeve. The water inside the aquifer enters the spiral water trough inside the spiral blade plate through the annular sleeve, and returns to the water tank pump chamber through the hose below to realize a circulation operation. The spiral blade plate absorbs the heat of the exhaust gas to achieve heat exchange operation. At the same time, when the stop valve between the hose and the water tank pump chamber is closed, the water is atomized by the atomizing sprayer under pressure and sprayed toward the primary heat recovery section below, further realizing heat exchange operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention;

[0026] Figure 2 The present invention provides a schematic half-section diagram of the overall structure of a tail gas purification and heat recovery device for a regenerative thermal incinerator.

[0027] Figure 3This is a connection display diagram of the layout structure of the secondary heat absorption mechanism of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0028] Figure 4 This is a schematic internal structure diagram of the primary heat recovery section of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0029] Figure 5 This is a schematic structure diagram of the filter screen position of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0030] Figure 6 This is a schematic plan view of the position structure of the transmission separation mechanism of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0031] Figure 7 This is a disassembled schematic diagram of the connection structure of the desorption and washing mechanism of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0032] Figure 8 This is a schematic diagram of the connection structure of the transmission separation mechanism of the tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention.

[0033] Figure 9 This is a tail gas purification and heat recovery device of a regenerative thermal incinerator proposed by the present invention Figure 3 Enlarged schematic diagram of the structure at point A.

[0034] In the figure: 1. Purification tower; 2. Water tank pump room; 3. Aeration inlet pipe; 4. Main filter screen; 5. Partition filter screen; 6. Transmission separation mechanism; 7. Desorption and washing mechanism; 8. Secondary heat absorption mechanism;

[0035] 11. Secondary heat recovery section; 12. Primary heat recovery section; 13. Discharge section; 14. First stabilizer; 15. Second stabilizer; 61. Motor; 62. Telescopic assembly; 63. Spline cylinder; 64. Spline shaft; 65. First bevel gear; 66. Second bevel gear; 67. Sun gear; 68. Planet gear; 69. Ring gear; 71. Swing rod; 72. Clutch assembly; 73. Reciprocating push and press assembly; 74. Pressing piece; 75. Telescopic rod; 76. Convex pin sliding shaft; 77. Connecting rod; 78. Spring blocking rod; 81. Spiral plate; 82. Annular sliding sleeve; 83. Water storage layer; 84. Spiral water tank; 85. Hose; 86. Atomizing sprayer; 87. Axle rod;

[0036] 621. Electric telescopic cylinder; 622. Coupling rod; 721. Turntable; 722. Connecting pin; 723. Docking bevel gear; 724. Driving bevel gear; 731. Limit slider; 732. Vertical moving groove; 733. Pressure rod; 734. Moving pin; 735. Stable slider. Detailed implementation mode

[0037] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic way, so they only show the components related to the present invention.

[0038] Reference Figures 1 - 9 , including a purification tower 1 and a water tank pump room 2. The purification tower 1 includes an emission section 13 and a primary heat recovery section 12 fixedly arranged on the upper and lower sides of the secondary heat recovery section 11. The water tank pump room 2 is fixedly arranged on one side of the primary heat recovery section 12. An aeration inlet pipe 3 is arranged inside the primary heat recovery section 12. A main filter screen 4 is movably arranged above the aeration inlet pipe 3 inside the primary heat recovery section 12. A partition filter screen 5 is movably arranged inside the main filter screen 4. A second stabilizing frame 15 is fixedly arranged above the inside of the primary heat recovery section 12, and a first stabilizing frame 14 is fixedly arranged below the inside of the emission section 13. A secondary heat absorption mechanism 8 is movably connected inside the secondary heat recovery section 11 through the first stabilizing frame 14 and the second stabilizing frame 15. The secondary heat absorption mechanism 8 includes an axis rod 87 and spiral blade plates 81 fixed on the surface of the axis rod 87. The axis rod 87 is rotatably arranged between the first stabilizing frame 14 and the second stabilizing frame 15;

[0039] A transmission separation mechanism 6 is arranged above the primary heat recovery section 12. The transmission separation mechanism 6 includes a motor 61 and a telescopic assembly 62. The motor 61 and the telescopic assembly 62 are both fixedly arranged on the outside of the primary heat recovery section 12. The output shaft of the motor 61 is in transmission connection with the partition filter screen 5 through a decontamination mechanism 7 and drives the partition filter screen 5 to perform a circumferential yawing motion inside the main filter screen 4;

[0040] The decontamination mechanism 7 is arranged below the second stabilizing frame 15. The decontamination mechanism 7 includes a swing rod 71, a clutch assembly 72 and a reciprocating push-pressing assembly 73. The two sides of the swing rod 71 are respectively movably connected with the clutch assembly 72 and the reciprocating push-pressing assembly 73. The decontamination mechanism 7 is in transmission connection with the motor 61 through the telescopic assembly 62, and the telescopic assembly 62 can realize the transmission docking separation between the motor 61 and the decontamination mechanism 7 and the partition filter screen 5;

[0041] One side of the reciprocating push-pressing assembly 73 is in transmission connection with a pressing piece 74. The swing rod 71 is fixed on the output rod at the bottom of a telescopic rod 75. The telescopic cylinder at the top of the telescopic rod 75 is fixed below the second stabilizing frame 15. The reciprocating push-pressing assembly 73 drives a convex pin sliding shaft 76 fixed at the center of a connecting rod 77 to move up and down. The partition filter screen 5 is fixed at the bottom of the connecting rod 77. The bottom of the main filter screen 4 is elastically connected with the secondary heat recovery section 11 through a spring blocking rod 78.

[0042] In this embodiment, the secondary heat recovery section 11, the primary heat recovery section 12 and the discharge section 13 form three different components of the purification tower 1. The tail gas enters the water body in the primary heat recovery section 12 through the aeration inlet pipe 3 to form large-diameter bubbles. The bubbles surge upward under the action of buoyancy until they contact the bottom surface of the main filter 4. Under the filtering and segmentation operation of the main filter 4, the bubbles are differentiated into a plurality of groups of small bubbles.

[0043] At the same time, after the motor 61 is started, the output shaft of the motor 61 can drive the split filter 5 to do a swing motion on the top surface of the main filter 4 through the de-washing mechanism 7, so as to further refine the bubbles, so that the bubbles can form small bubbles after passing through the main filter 4 and the split filter 5, so that they can better contact with the water body, allowing the water body to take away the heat in the bubbles, thereby realizing heat exchange;

[0044] The start-up of the motor 61 can also drive the swing rod 71 to reciprocate. During this process, the reciprocating motion of the swing rod 71 can drive the split filter 5 to apply pressure downward through the reciprocating pushing assembly 73, and the pressure of the split filter 5 acts on the main filter 4. After the main filter 4 is subjected to the force, it can squeeze the spring blocking rod 78 downward. The reciprocating operation can realize the dewashing operation of the main filter 4 in the water body of the first-level heat recovery section 12, thereby preventing the main filter 4 from being blocked and improving the long-term use effect of the main filter 4. After starting, the telescopic assembly 62 can respectively realize the motor 61 driving the split filter 5 to rotate or the motor 61 driving the split filter 5 to apply pressure downward through the dewashing mechanism 7, thereby greatly improving the practicality of the device.

[0045] refer to Figure 4 , Figure 5 , Figure 6 and Figure 8 The output shaft of the motor 61 is connected to the spline cylinder 63 located inside the primary heat recovery section 12 through a pulley assembly. A spline shaft 64 is telescopically slidable on one side of the spline cylinder 63. A first bevel gear 65 is fixed at one end of the spline shaft 64. The first bevel gear 65 is vertically meshed with a second bevel gear 66 fixed on the surface of the shaft rod 87. The motor 61 drives the spline cylinder 63 and the spline shaft 64 to rotate. At the same time, the meshing effect of the first bevel gear 65 and the second bevel gear 66 directly drives the shaft rod 87 to rotate at the center of the second stable frame 15. A sun gear 67 is fixed at the bottom end of the shaft rod 87. A planetary gear 68 is meshed on one side of the sun gear 67. The planetary gear 68 is meshed with a gear ring 69 on the side away from the sun gear 67. The gear ring 69 is fixed in the primary heat recovery section 12 through an external connecting rod. The planetary gear 68 is slidably sleeved on the surface of the convex pin sliding shaft 76. The convex pin sliding shaft 76 is fixed at the top center of the connecting frame rod 77 and is coaxial with the center of the dividing filter screen 5.

[0046] In this embodiment, the startup of the motor 61 can first drive the spline cylinder 63 to rotate through the pulley assembly. In the first-stage heat recovery section 12, the spline cylinder 63 is in spline sliding connection with the spline shaft 64 on one side, so that the rotation of the spline cylinder 63 can drive the spline shaft 64 to rotate synchronously. At this time, the first bevel gear 65 fixed on one side of the spline shaft 64 meshes with the second bevel gear 66, and the rotation of the second bevel gear 66 can drive the shaft center rod 87 to rotate, and the sun gear 67 below the shaft center rod 87 will rotate synchronously;

[0047] During this process, the sun gear 67, the planet gear 68 and the ring gear 69 form a planetary gear structure. The ring gear 69 is fixed to the first-stage heat recovery section 12 through a connecting rod. After the sun gear 67 rotates, the planet gear 68 meshes and rotates and revolves around the sun gear 67 as the center. At this time, the center of the sun gear 67 corresponds to the center of the shaft center rod 87, that is, the center of the main filter screen 4, and the center of the planet gear 68 corresponds to the center of the convex pin sliding shaft 76. Here, there is also a spline connection between the planet gear 68 and the convex pin sliding shaft 76. After the sun gear 67 rotates, it can drive the convex pin sliding shaft 76 to rotate. The dividing filter screen 5 is fixed below the convex pin sliding shaft 76 through a connecting frame rod 77, so that the dividing filter screen 5 is stressed and rotates on the top of the main filter screen 4, and at the same time, the revolution effect is realized, and the bubbles passing through the main filter screen 4 are further refined and divided, so as to achieve the purpose of better heat dissipation of the small bubbles in the water body and realizing heat exchange.

[0048] Reference Figure 6 and Figure 8 As shown in FIGS. 10 and 11, the telescopic assembly 62 includes an electric telescopic cylinder 621 and a coupling rod 622. One end of the coupling rod 622 is fixed to the output end of the electric telescopic cylinder 621 fixed on the surface of the first-stage heat recovery section 12, and the other end of the coupling rod 622 is movably connected to the spline shaft 64 through a limit bearing seat. The coupling rod 622 drives the spline shaft 64 to telescopically move on one side of the spline cylinder 63 through the electric telescopic cylinder 621.

[0049] In this embodiment, after the electric telescopic cylinder 621 is started, it can push or pull the coupling rod 622. One end of the coupling rod 622 is movably connected to the spline shaft 64 through a fixed block or a connecting block. Here, the movable connection means that the spline shaft 64 and the coupling rod 622 can drive the movement while maintaining a rotational connection. This effect can be achieved by setting a limit bearing in the prior art. When the spline shaft 64 moves, the first bevel gear 65 mentioned above will disengage from the second bevel gear 66. In this way, when the motor 61 is started later to drive the spline shaft 64 to rotate, the dividing filter screen 5 will not be driven to swing and rotate.

[0050] Reference Figures 4 - 7, the surface of the spline shaft 64 is fixedly connected to the driving bevel gear 724. The clutch assembly 72 includes two groups of turntables 721 and docking bevel gears 723. The docking bevel gear 723 is fixed on one side of the turntable 721 and meshes and docks on both sides of the driving bevel gear 724. A connecting pin 722 is fixedly connected to the side of the turntable 721 away from the docking bevel gear 723. The connecting pin 722 is movably connected to the shaft hole on one side of the swing rod 71. The turntable 721 is movably limited by the side plate and is located below the second stabilizer 15. The reciprocating pressing assembly 73 includes a limiting slider 731 and a pressure rod 733. One side of the limiting slider 731 is movably connected to the side of the swing rod 71 away from the clutch assembly 72 through a shaft pin. A vertical moving groove 732 is formed on the other side of the limiting slider 731 away from the swing rod 71. The middle position of the pressure rod 733 slides in the vertical moving groove 732 through a fixed moving pin 734. A stable slider 735 is movably connected above the pressure rod 733. The stable slider 735 linearly slides in the chute at the bottom of the second stabilizer 15. The lower part of the pressure rod 733 is movably connected to the pressing piece 74 through a side plate. The surface of the limiting slider 731 is slidably connected to the limiting slide bar at the bottom of the second stabilizer 15 through the formed chute.

[0051] In this implementation scheme, the driving bevel gear 724 is fixed on the surface of the spline shaft 64. As mentioned above, when the electric telescopic cylinder 621 is started, it will drive the spline shaft 64 to expand and contract on one side of the spline cylinder 63. At this time, the position movement of the spline shaft 64 will synchronously drive the position movement of the driving bevel gear 724 until the driving bevel gear 724 is meshed and docked with the two groups of docking bevel gears 723. At this time, after the motor 61 is started, the driving bevel gear 724 drives the two groups of docking bevel gears 723 to rotate. During the rotation of the docking bevel gear 723, its other side will perform a circular motion through the connecting pin 722, and the connecting pin 722 is rotatably connected to one side of the swing rod 71. In this way, one side of the swing rod 71 will be stressed and perform a reciprocating motion, and the other side of the swing rod 71 will pull the shaft pin on the surface of the limiting slider 731 at this time, causing the limiting slider 731 to receive a lateral force. The other side of the limiting slider 731 will transfer this force to the pressure rod 733 through the vertical moving groove 732 through the moving pin 734. In this way, the pressure rod 733 will move to one side under the action of the pulling force;

[0052] During the movement of the pressure rod 733, since the stable slider 735 at the top thereof slides linearly with the bottom of the second stabilizer 15, and the bottom thereof is movably connected to the pressing piece 74, the body of the pressing piece 74 is fixed under the telescopic rod 75, and the telescopic rod 75 can linearly move up and down under the second stabilizer 15. In this way, the bottom of the pressure rod 733 will drive the pressing piece 74 to move up and down for limiting, so that the pressing piece 74 touches the convex pin sliding shaft 76 and moves downward. The bottom of the convex pin sliding shaft 76 is fixed at the center of the connecting rod 77, so that the divided filter screen 5 can drive the main filter screen 4 to move downward when stressed until the spring blocking rod 78 is squeezed. When the pressing piece 74 resets, the elastic force of the spring blocking rod 78 will drive the convex pin sliding shaft 76 to rise again and maintain the contact effect with the pressing piece 74. In this way, the main filter screen 4 can reciprocally move up and down inside the primary heat recovery section 12, so as to realize the decontamination operation in the water body and carry away the particles contaminated at the bottom of the main filter screen 4;

[0053] It should be noted that the convex pin sliding shaft 76 will rotate inside the gear ring 69 following the planet gear 68, so that the convex pin sliding shaft 76 and the pressing piece 74 are not in the same direction. When it is necessary to decontaminate the main filter screen 4, the convex pin sliding shaft 76 needs to be brought to the bottom of the pressing piece 74. At the same time, the spline connection between the convex pin sliding shaft 76 and the planet gear 68 also facilitates the realization of the rotation effect and the telescopic movement effect, effectively adapting the connection between the convex pin sliding shaft 76 and the planet gear 68 and meeting different driving effects.

[0054] Reference Figure 2 、 Figure 3 and Figure 9 In this embodiment, after the bubbles emerge from the water surface of the primary heat recovery section 12 and re-form tail gas, the tail gas will rise and enter between the spiral fin plates 81 in the secondary heat recovery section 11. The outer shape of the spiral fin plate 81 is spiral, so the tail gas can fully contact the surface of the spiral fin plate 81, and finally enter the discharge section 13 through the central area of the water storage layer 83 at the top of the spiral fin plate 81 to realize the outward discharge operation;

[0055] In this implementation scheme, after the bubbles emerge from the water surface of the primary heat recovery section 12 and re-form tail gas, the tail gas will rise and enter between the spiral fin plates 81 in the secondary heat recovery section 11. The outer shape of the spiral fin plate 81 is spiral, so the tail gas can fully contact the surface of the spiral fin plate 81, and finally enter the discharge section 13 through the central area of the water storage layer 83 at the top of the spiral fin plate 81 to realize the outward discharge operation;

[0056] The water storage layer 83 is connected to the water inlet pipe. After the water enters the water storage layer 83, the water flows into the spiral water tank 84 in the spiral plate 81 through the annular sleeve 82 under the action of gravity. The spiral water tank 84 is consistent with the spiral plate 81 in structure, so that the water in the spiral water tank 84 can absorb the heat in the remaining exhaust gas, and finally returns to the water tank pump chamber 2 through the hose 85 to achieve the effect of heat exchange and recycling.

[0057] When the exhaust gas absorbs heat after passing through the first-stage heat recovery section 12, the heat is still high. At this time, the stop valve between the hose 85 and the water tank pump chamber 2 is closed, and the water pressure causes the water to enter the atomizing sprayer 86, and the atomizing sprayer 86 atomizes and sprays, thereby further realizing the heat exchange operation.

[0058] It is worth noting that the spiral plate 81 is fixed on the shaft rod 87 and the outer side is in contact with the inner wall of the secondary heat recovery section 11. As mentioned earlier, the first bevel gear 65 is meshed with the second bevel gear 66 on the surface of the shaft rod 87. In this way, the motor 61 drives the split filter 5 to rotate on the surface of the main filter 4, and can also synchronously drive the shaft rod 87 to rotate. The rotation of the shaft rod 87 drives the spiral plate 81 to rotate on the inner wall of the secondary heat recovery section 11, so that the particles attached to the inner wall of the secondary heat recovery section 11 can be scraped off. After the hose 85 is pulled and rotated to a certain angle, the motor 61 reverses to reset the hose 85. Therefore, the deflection movement of the split filter 5 on the surface of the main filter 4 mentioned above is not continuous, and it also belongs to a reciprocating pendulum motion to split and disperse the bubbles.

[0059] Working principle: the exhaust gas after preliminary treatment enters the water body in the primary heat recovery section 12 through the aeration inlet pipe 3 to form bubbles, and the bubbles float up and contact the bottom of the main filter 4. At this time, the motor 61 drives the spline cylinder 63 to rotate, and the spline shaft 64 is forced to rotate, and the meshing effect of the first bevel gear 65 and the second bevel gear 66 drives the shaft rod 87 to rotate. The upper part of the shaft rod 87 drives the spiral blade plate 81 to rotate inside the secondary heat recovery section 11, and the lower part drives the sun gear 67 to rotate. The planetary gear 68 is meshed between the sun gear 67 and the ring gear 69, so that the planetary gear 68 is forced to rotate and revolve at the same time, thereby driving the convex pin sliding shaft 76 and the connecting frame rod 77 in the dewashing mechanism 7 to perform a swing rotation operation inside the primary heat recovery section 12, thereby causing the split filter 5 to swing and rotate at the top of the main filter 4. After the bubbles pass through the main filter 4, they are refined and cut by the split filter 5, so that the bubbles are dispersed into multiple small bubbles;

[0060] By injecting water into the aquifer 83, under the action of water pressure, the water flows directly into the spiral water tank 84 opened on the inner side of the spiral plate 81 through the annular sleeve 82, and finally the water flows back into the water tank pump chamber 2 from the hose 85 at the bottom end of the spiral plate 81, so that the water takes away the heat on the surface of the spiral plate 81. At the same time, driven by the shaft rod 87, the spiral plate 81 slides with the inner wall of the secondary heat recovery section 11 to scrape off the impurity particles, and finally the tail gas enters the discharge section 13 to be discharged outward;

[0061] When the main filter 4 needs to be cleaned, the electric telescopic cylinder 621 in the telescopic assembly 62 is started first, and the spline shaft 64 is driven to move horizontally on one side of the spline cylinder 63 through the connecting rod 622, so that the first bevel gear 65 and the second bevel gear 66 are separated from each other, and the active bevel gear 724 in the clutch assembly 72 and the two sets of docking bevel gears 723 are docked and meshed with each other. At this time, after the motor 61 is driven, the transmission effect will directly drive the turntable 721 to rotate. The connecting pin 722 on one side of the turntable 721 pulls the swing rod 71 to move to one side during the rotation process. At the same time, the other side of the swing rod 71 will pull the limit slider 731 to slide horizontally at the bottom of the second stable frame 15. The vertical The pressure rod 733 on the surface of the movable groove 732 and the movable pin 734 slides, so that the pressure rod 733 is stressed, and its top moves laterally at the bottom of the second stable frame 15 through the stable slider 735, and its bottom provides a pressure effect on the pressure plate 74, so that the pressure plate 74 drives the telescopic rod 75 to move vertically at the bottom of the second stable frame 15, squeezing the convex pin sliding shaft 76 on the top of the connecting frame rod 77, allowing the convex pin sliding shaft 76 and the planetary gear 68 to retract with each other. At this time, the connecting frame rod 77 provides a downward pressure to the split filter 5, and the pressure of the split filter 5 acts on the main filter 4, so that the main filter 4 squeezes the spring blocking rod 78 at the bottom to achieve reciprocating up and down movement, thereby achieving a dewashing effect in the water body of the first-level heat recovery section 12.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas purification and heat recovery device for a regenerative thermal oxidizer, characterized in that It includes a purification tower (1) and a water tank pump chamber (2). The purification tower (1) includes an emission section (13) and a primary heat recovery section (12) fixedly arranged on the upper and lower sides of the secondary heat recovery section (11). The water tank pump chamber (2) is fixed on the right side of the primary heat recovery section (12). An aeration inlet pipe (3) is arranged inside the primary heat recovery section (12). A main filter screen (4) is arranged inside the primary heat recovery section (12). The main filter screen (4) is movably close to the upper side of the aeration inlet pipe (3). A partition filter screen (5) is movably arranged inside the main filter screen (4). A second stabilizing frame (15) is fixed above the inner side of the primary heat recovery section (12). A first stabilizing frame (14) is fixed below the inner side of the emission section (13). A secondary heat absorption mechanism (8) is movably connected inside the secondary heat recovery section (11) through the first stabilizing frame (14) and the second stabilizing frame (15). The secondary heat absorption mechanism (8) includes an axial rod (87) and a spiral fin plate (81) fixed on the surface of the axial rod (87). The axial rod (87) is rotatably arranged between the first stabilizing frame (14) and the second stabilizing frame (15). A transmission separation mechanism (6) is arranged above the primary heat recovery section (12). The transmission separation mechanism (6) includes a motor (61) and a telescopic assembly (62). Both the motor (61) and the telescopic assembly (62) are fixed on the outer side of the primary heat recovery section (12). The output shaft of the motor (61) is in transmission connection with the partition filter screen (5) through a de-washing mechanism (7) and drives the partition filter screen (5) to perform a circumferential yawing motion inside the main filter screen (4). The de-washing mechanism (7) is arranged below the second stabilizing frame (15). The de-washing mechanism (7) includes a swing rod (71), a clutch assembly (72) and a reciprocating pressing assembly (73). The two sides of the swing rod (71) are respectively movably connected with the clutch assembly (72) and the reciprocating pressing assembly (73). The de-washing mechanism (7) is in transmission connection with the motor (61) through the telescopic assembly (62). The telescopic assembly (62) can realize the transmission docking separation between the motor (61) and the de-washing mechanism (7) and the partition filter screen (5). One side of the reciprocating pressing assembly (73) is in transmission connection with a pressing piece (74). The swing rod (71) is fixed on the output rod at the bottom of a telescopic rod (75). The telescopic cylinder at the top of the telescopic rod (75) is fixed below the second stabilizing frame (15). The reciprocating pressing assembly (73) drives a convex pin sliding shaft (76) fixed at the center of a connecting rod (77) to move up and down. The partition filter screen (5) is fixed at the bottom of the connecting rod (77). The bottom of the main filter screen (4) is elastically connected to the secondary heat recovery section (11) through a spring blocking rod (78).

2. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 1, characterized in that, The output shaft of the motor (61) is connected to the spline cylinder (63) located on the inner side of the primary heat recovery section (12) through a pulley assembly. A spline shaft (64) is slidably connected to one side of the spline cylinder (63). A first bevel tooth (65) is fixed to one end of the spline shaft (64). The first bevel tooth (65) is vertically meshed with a second bevel tooth (66) fixed on the surface of the shaft rod (87). The motor (61) drives the spline cylinder (63) and the spline shaft (64) to rotate, and at the same time, the meshing effect of the first bevel tooth (65) and the second bevel tooth (66) directly drives the shaft rod (87) to rotate at the center of the second stabilizing frame (15).

3. The tail gas purification and heat recovery device of a regenerative thermal incinerator according to claim 2, characterized in that, A sun gear (67) is fixed to the bottom end of the shaft rod (87), a planet gear (68) is meshed with one side of the sun gear (67), and the planet gear (68) is meshed with a gear ring (69) on the side away from the sun gear (67). The gear ring (69) is fixed in the primary heat recovery section (12) through an external connecting rod. The planet gear (68) is slidably sleeved on the surface of a convex pin sliding shaft (76), and the convex pin sliding shaft (76) is fixed at the top center position of the connecting frame rod (77) and is coaxial with the center of the dividing filter (5).

4. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 2, characterized in that, The telescopic assembly (62) comprises an electric telescopic cylinder (621) and a connecting rod (622); one end of the connecting rod (622) is fixed to the output end of the electric telescopic cylinder (621) fixed to the surface of the first-stage heat recovery section (12); the other end of the connecting rod (622) is movably connected to the spline shaft (64) via a limit bearing seat; the connecting rod (622) drives the spline shaft (64) to telescope on one side of the spline cylinder (63) via the electric telescopic cylinder (621).

5. The tail gas purification and heat recovery device of a regenerative thermal incinerator according to claim 2, characterized in that, The surface of the spline shaft (64) is fixedly connected to the active bevel gear (724). The clutch assembly (72) comprises two sets of rotating disks (721) and docking bevel gears (723). The docking bevel gears (723) are fixed to one side of the rotating disk (721) and engage with both sides of the active bevel gears (724). A connecting pin (722) is fixed to the side of the rotating disk (721) away from the docking bevel gears (723). The connecting pin (722) is movably connected to the shaft hole on one side of the swing rod (71). The rotating disk (721) is movable below the second stabilizing frame (15) through the side plate limit.

6. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 1, characterized in that, The reciprocating pushing assembly (73) comprises a limit slider (731) and a pressure rod (733). One side of the limit slider (731) is movably connected to the side of the swing rod (71) away from the clutch assembly (72) through an axle pin, and the other side of the limit slider (731) away from the swing rod (71) is provided with a vertical movable groove (732).

7. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 6, characterized in that, The middle position of the pressure rod (733) slides in the vertical movable groove (732) through a fixed movable pin (734), the top of the pressure rod (733) is movably connected to a stabilizing slider (735), and the stabilizing slider (735) slides linearly in the slide groove at the bottom of the second stabilizing frame (15). The bottom of the pressure rod (733) is movably connected to the pressure plate (74) through a side plate, and the surface of the limit slider (731) is slidably connected to the limit slider at the bottom of the second stabilizing frame (15) through the opened slide groove.

8. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 1, characterized in that, The spiral fin plate (81) is located inside the secondary heat recovery section (11) and contacts the inner wall of the secondary heat recovery section (11). A spiral water tank (84) is formed inside the spiral fin plate (81), and the spiral water tank (84) has the same outer shape as the spiral fin plate (81).

9. The tail gas purification and heat recovery device of a regenerative thermal incinerator according to claim 8, characterized in that, The ports of the spiral water tank (84) at the bottom of the spiral fin plate (81) are respectively connected to a hose (85) and an atomizing sprayer (86) through closed end caps. One end of the hose (85) is fixedly communicated with the water tank pump chamber (2) through a stop valve, and the atomizing sprayer (86) is communicated with the end cap of the spiral water tank (84) through a one-way pressure valve.

10. The tail gas purification and heat recovery device of a regenerative thermal oxidizer according to claim 9, characterized in that The ports of the spiral water tank (84) at the top of the spiral fin plate (81) are fixedly connected to an annular sliding sleeve (82) through connecting pipes. The annular sliding sleeve (82) is rotatably arranged at the bottom of the water storage layer (83) through a sealed bearing. The water storage layer (83) is fixed at the inner bottom end of the discharge section (13). The bottom of the water storage layer (83) is communicated with the annular sliding sleeve (82), and a water inlet pipe is externally connected to the top of the water storage layer (83).

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