Environment-friendly boiler combustion waste gas treatment and recovery device

Abstract

The invention belongs to the technical field of waste gas recovery, and particularly relates to an environment-friendly boiler combustion waste gas treatment and recovery device which comprises a treatment cylinder and a solution pipe communicated with one side of the treatment cylinder, the other side of the treatment cylinder is provided with a communicated recovery pipe, and the top of the treatment cylinder is provided with a sealing plate for sealing the treatment cylinder. A lower baffle and an upper baffle are arranged in the middle of the inner wall of the treatment barrel, at least one secondary spiral pipe is fixed in the lower baffle and the upper baffle in a penetrating mode, semicircular plates are arranged at the ends of the secondary spiral pipe, a secondary filter screen is arranged on the inner wall of the secondary spiral pipe, and a spraying assembly is arranged at the bottom of the secondary spiral pipe in a penetrating mode. The secondary spiral pipe spirally surrounds the periphery of the autorotation cylinder, waste gas enters the secondary spiral pipe and then spirally moves upwards along the interior of the secondary spiral pipe, the waste gas is filtered through the spiral secondary filter screen, the filtering area of the waste gas and the secondary filter screen is greatly increased, and the waste gas is rapidly filtered through the secondary filter screen; and the alkaline solution can impact the secondary filter screen to play a scouring role, so that secondary filtration of the waste gas is accelerated.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to an environmentally friendly boiler combustion waste gas treatment and recovery device. Background Technology

[0002] Boilers generate heat through fuel combustion during operation, and the gaseous emissions produced during fuel combustion typically include carbon dioxide, nitrogen oxides, carbon monoxide, sulfides, and other particulate matter. Among these, carbon dioxide, nitrogen oxides, and carbon monoxide are harmful gases, and if directly discharged into the outside air, they can easily cause environmental pollution. Therefore, it is necessary to install a waste gas treatment and recovery device to remove acidic harmful substances through alkaline solutions before recovering or discharging the waste gas.

[0003] The prior art CN202411017136.3 describes an environmentally friendly boiler combustion exhaust gas treatment and recovery device. The exhaust gas treatment component includes a filter plate fixedly installed at one end of a rotating rod. A filter screen is provided in the inner cavity of the recovery tank and below the filter plate. The present invention uses the cooperation of a motor and a rotating rod to drive the filter plate to rotate, which helps to disperse the alkaline solution sprayed by the spray gun and allow it to enter the exhaust gas treatment channel to form a water film, so that the exhaust gas and alkaline solution are mixed to remove acidic harmful substances.

[0004] The above-mentioned disclosure is similar to the existing technology of mixing waste gas with alkaline solution. Generally, the alkaline solution is directly sprayed into the waste gas, but the waste gas and alkaline solution cannot be fully mixed, the acidic harmful substances in the waste gas are not completely removed, and the activated carbon filtration is insufficient. Therefore, there is a need to provide an environmentally friendly boiler combustion waste gas treatment and recovery device. Summary of the Invention

[0005] Based on the technical problems of insufficient activated carbon filtration and incomplete removal of acidic harmful substances in exhaust gas in the background technology, this invention proposes an environmentally friendly boiler combustion exhaust gas treatment and recovery device.

[0006] This invention proposes an environmentally friendly boiler combustion exhaust gas treatment and recovery device, comprising: a treatment unit, a support unit, and an air inlet unit, the support unit and the air inlet unit being respectively disposed at the bottom and top of the treatment unit; the treatment unit includes a treatment cylinder, the inner wall of which is further fixed with a lower baffle and an upper baffle; a first spiral assembly is disposed inside the treatment cylinder for mixing exhaust gas with an alkaline solution; the first spiral assembly includes: a secondary spiral tube, the two ends of which respectively penetrate the lower baffle and the upper baffle; a semi-circular plate, the semi-circular plate being fixed to the end of the secondary spiral tube; a secondary filter screen, the secondary filter screen being disposed on the inner wall of the secondary spiral tube; and a spraying assembly, the spraying assembly being fixed through the secondary spiral tube; the treatment unit includes: a treatment unit, a support unit, and an air inlet unit, the support unit and the air inlet unit being respectively disposed at the bottom and top of the treatment unit; the treatment unit includes: a treatment unit, ... The cylinder has a second spiral assembly inside, which filters exhaust gas through rotation. The second spiral assembly includes: a rotating cylinder, which is rotatably disposed between the lower baffle and the upper baffle via a sealing unit, allowing the rotating cylinder to rotate between the lower baffle and the upper baffle while maintaining a seal; multiple outer fan blades, which are fixed to the bottom of the rotating cylinder surface; multiple inner fan blades, which are fixed to the top of the inner wall of the rotating cylinder; a rotating cylinder, which is fixed inside the rotating cylinder via a support component; a lower ring plate, which is fixedly disposed between the rotating cylinder and the rotating cylinder; an upper ring plate, which is fixedly disposed between the rotating cylinder and the rotating cylinder; and a primary spiral tube, whose two ends pass through the lower ring plate and the upper ring plate, respectively.

[0007] Preferably, the air intake unit includes: a sealing plate, which is disposed on the top of the processing cylinder and its top is sealed; two sealing elements of different sizes, which are respectively sleeved on the inside and outside of the top of the rotating cylinder; an intermediate plate, which is fixed in the middle of the smaller sealing element; and an exhaust pipe, which passes through the middle of the intermediate plate and extends one end of the exhaust pipe into the processing cylinder.

[0008] Preferably, the support unit includes: a support column, with multiple support columns fixed to the bottom of the processing cylinder; a support base, with the top of the support base fixed to the bottom of the multiple support columns; a drive unit, with the drive unit fixed to the middle of the top of the support base; and at least two horizontal locking rods, with at least two horizontal locking rods fixed to the power output end of the top of the drive unit, the horizontal locking rods locking into the bottom of the rotating cylinder, so that the power output end of the top of the drive unit rotates synchronously with the rotating cylinder.

[0009] Preferably, the spraying assembly includes: a vertical pipe, which is disposed through the bottom of the secondary spiral pipe; an input pipe, which is threadedly installed in the middle of the vertical pipe; a threaded ring, which is threadedly installed in the middle of the vertical pipe, and the ends of the input pipe and the threaded ring abut together; a fixing frame, which is disposed on the inner wall of the top of the input pipe, and the bottom of the fixing frame extends out of the input pipe; a mounting frame, one end of which is fixedly disposed on the inner wall of the threaded ring; a center rod, one end of which is fixed to the middle of the fixing frame, and the other end of which is fitted with a bearing; and an eccentric block, which is fitted on the bearing.

[0010] Preferably, the eccentric block is conical, and the angle between the axial direction of the eccentric block and the axial direction of the input pipe is 3°-7°. Multiple spiral grooves are provided on the conical side surface of the eccentric block, and the multiple spiral grooves surround the side surface of the eccentric block with the axial direction of the eccentric block as the center.

[0011] Preferably, the input tube has a connecting hole in the middle, the connecting hole is smaller in the middle and larger at both ends, and the two ends of the connecting hole are conical. The apex and side of the eccentric block extend into the connecting hole of the input tube, and the eccentric block always has a generatrix that is parallel to the side wall of the connecting hole. The angle between the other generatrix at the symmetrical position of the generatrix and the side wall of the connecting hole is 6°-14°.

[0012] Preferably, multiple outer fan blades surround the surface of the bottom of the rotating cylinder, and multiple inner fan blades surround the inner wall of the top of the rotating cylinder. The outer and inner fan blades bend in opposite directions, so that the airflow direction generated when the outer and inner fan blades rotate synchronously is opposite.

[0013] Preferably, the bottom opening of the secondary spiral tube is provided with a pin hole corresponding to the position of the spraying component. The vertical tube is inserted into the pin hole of the spiral tube, so that the top of the vertical tube extends into the interior of the spiral tube. The treatment unit also includes limiting strips, which are fixed to the inner wall of the spiral tube. The four limiting strips are located at the two edges of the secondary filter screen respectively. The primary spiral tube, primary filter screen, secondary spiral tube, secondary filter screen and limiting strips are all spirally wound around the interior of the treatment cylinder with the axis of the rotating cylinder as the center. The secondary filter screen and primary filter screen are activated carbon filter screens.

[0014] Preferably, the processing unit further includes a solution tube disposed on one side of the processing cylinder and connected thereto; and a recovery tube disposed on the other side of the processing cylinder and connected thereto, wherein the recovery tube and the solution tube are of the same specifications.

[0015] Preferably, the top surface of the lower baffle, the bottom surface of the upper baffle, the inner wall of the treatment cylinder, and the outer side of the rotating cylinder form a solution diversion space. Multiple vertical tubes spirally surround the inside of the treatment cylinder, and multiple vertical tubes are located between the lower baffle and the upper baffle, so that the alkaline solution in the solution diversion space enters the secondary spiral tube through the vertical tubes. The solution tube is located between the lower baffle and the upper baffle and is interconnected with the solution diversion space. The bottom opening of the rotating cylinder is provided with a groove corresponding to the position of the horizontal locking rod. The two ends of the primary spiral tube pass through the lower ring plate and the upper ring plate, respectively. The secondary filter divides the space inside the secondary spiral tube into two parts. Two semicircular plates are located at the ends of the two spaces inside the secondary spiral tube, so that the exhaust gas must pass through the secondary filter when passing through the secondary spiral tube.

[0016] The beneficial effects of this invention are as follows: the rotating cylinder, the rotating drum, the lower support rod, the lower ring plate, the upper ring plate, the initial spiral tube, the initial filter screen, the upper support rod, the outer fan blade, the inner fan blade, and other structures rotate at high speed around the axis of the rotating cylinder. The rotation of the inner fan blade pushes the exhaust gas from top to bottom, allowing the exhaust gas to enter the high-speed rotating initial spiral tube. Due to centrifugal force and the spiral shape of the initial spiral tube, the exhaust gas flows quickly through the spiral-shaped initial filter screen in the initial spiral tube, completing the initial filtration. This allows for rapid filtration of the exhaust gas. At the same time, the rotation of the outer fan blade pushes the exhaust gas from bottom to top, allowing the exhaust gas to be discharged from the bottom of the rotating cylinder and then quickly flow from bottom to top into the secondary spiral tube for secondary filtration. During this process, the outer fan blade extracts the exhaust gas from inside the rotating cylinder. By setting the outer fan blade and the inner fan blade respectively inside and outside the rotating cylinder, the exhaust gas can be driven to flow at high speed. At the same time, the rotation of the initial spiral tube accelerates the filtration of the exhaust gas. Through the cooperation of multiple structures, the exhaust gas can be fully and quickly filtered twice.

[0017] The secondary spiral tube is spirally wrapped around the outer perimeter of the rotating cylinder. After the exhaust gas enters the secondary spiral tube, it moves upward along its interior in a spiral motion. The exhaust gas is filtered through the spiral-shaped secondary filter screen, which greatly increases the filtration area between the exhaust gas and the secondary filter screen, allowing the exhaust gas to pass through the secondary filter screen quickly. At the same time, the alkaline solution is sprayed out from the bottom up through the spraying component. The alkaline solution can impact the secondary filter screen to play a scouring role and accelerate the secondary filtration of the exhaust gas.

[0018] In the spraying assembly, an eccentric block is located in the connecting hole of the input pipe. The alkaline solution is sprayed out through the gap between the side of the eccentric block and the inner wall of the input pipe. The alkaline solution impacts the side of the conical eccentric block and flows along the spiral grooves on the side of the eccentric block. Because the spiral grooves are spirally arranged around the side of the eccentric block, the reaction force generated by the alkaline solution washing the side of the eccentric block causes it to rotate around the axis of the central rod. Due to the eccentric block's biased arrangement, the alkaline solution is continuously agitated during rotation, ensuring that the alkaline solution is sprayed out evenly. At the same time, the distance between the side of the eccentric block and the inner wall of the input pipe changes with rotation. During the rotation of the eccentric block, the alkaline solution is squeezed, resulting in a more uniform mixing of the components of the alkaline solution before it is sprayed out. The acidic substances in the exhaust gas mix more evenly with the water, and the acidic substances in the exhaust gas dissolve more thoroughly. This allows the alkaline substances in the alkaline solution to react evenly and fully with the acidic harmful substances in the exhaust gas after spraying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0020] Figure 2 This is a cross-sectional schematic diagram of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the rotating drum structure of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention;

[0022] Figure 4 This is a schematic diagram of the initial spiral tube structure of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0023] Figure 5 This is a schematic diagram of the disassembly of the secondary spiral tube of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the disassembly of the rotating drum of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention;

[0025] Figure 7 This is a schematic diagram of the secondary spiral tube structure of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0026] Figure 8 This is a schematic diagram of the secondary spiral tube of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0027] Figure 9 This is a schematic diagram of the vertical pipe cross-section of an environmentally friendly boiler combustion waste gas treatment and recovery device proposed in this invention.

[0028] Figure 10 This is a schematic diagram showing the disassembly of the vertical pipe of an environmentally friendly boiler combustion exhaust gas treatment and recovery device proposed in this invention.

[0029] In the diagram: 1. Support base; 2. Support column; 3. Drive unit; 4. Processing cylinder; 5. Horizontal clamping rod; 6. Bearing 1; 7. Solution pipe; 8. Recovery pipe; 9. Sealing plate; 10. Bearing 2; 11. Rotating cylinder; 12. Bearing 3; 13. Exhaust pipe; 14. Lower baffle; 15. Upper baffle; 16. Rotating cylinder; 17. Lower support rod; 18. Lower ring plate; 19. Upper ring plate; 20. Primary spiral tube; 21. Primary filter screen; 22. Upper support rod; 23. Outer fan blade; 24. Inner fan blade; 25. Bearing 4; 26. Bearing 5; 27. Secondary spiral tube; 28. Secondary filter screen; 29. ​​Vertical tube; 30. Semicircular plate; 31. Groove; 32. Intermediate plate; 33. Limiting strip; 34. Input pipe; 35. Fixing frame; 36. Threaded ring; 37. Mounting frame; 38. Center rod; 39. Bearing 6; 40. Eccentric block; 41. Spiral groove; 42. Pin hole. Detailed Implementation

[0030] Reference Figures 1 to 10An environmentally friendly boiler combustion exhaust gas treatment and recovery device includes a treatment cylinder 4 and a solution pipe 7 connected to one side of the treatment cylinder 4. A recovery pipe 8 is connected to the other side of the treatment cylinder 4. A sealing plate 9 is provided at the top of the treatment cylinder 4 to seal it. A lower baffle 14 and an upper baffle 15 are provided in the middle of the inner wall of the treatment cylinder 4. At least one secondary spiral tube 27 is fixed through the lower baffle 14 and the upper baffle 15. A semi-circular plate 30 is provided at the end of each secondary spiral tube 27. A secondary filter screen 28 is provided on the inner wall of the secondary spiral tube 27. A spraying component is provided through the bottom of the secondary spiral tube 27. A rotating cylinder 11 is rotatably disposed between the lower baffle 14 and the upper baffle 15 through a sealing unit. The sealing unit is a bearing 25 and a bearing 26. A bearing 25 is respectively sleeved in the middle of the lower baffle 14 and the upper baffle 15. Bearing 25 and bearing 26 are fitted onto the bottom-opening rotating cylinder 11, allowing the rotating cylinder 11 to rotate between the lower baffle 14 and the upper baffle 15 while maintaining a seal. Multiple outer fan blades 23 are fixedly installed at the bottom of the surface of the rotating cylinder 11, and multiple inner fan blades 24 are fixedly installed at the top of the inner wall of the rotating cylinder 11. A rotating cylinder 16 is installed in the middle of the rotating cylinder 11. The supporting components are a lower support rod 17 and at least two upper support rods 22. At least two lower support rods 17 and at least two upper support rods 22 are fixed between the rotating cylinder 16 and the rotating cylinder 11. A lower ring plate 18 and an upper ring plate 19 are fixed between the rotating cylinder 16 and the rotating cylinder 11. At least one initial spiral tube 20 passes through the lower ring plate 18 and the upper ring plate 19. A primary filter screen 21 is installed on the inner wall of the initial spiral tube 20.

[0031] In this invention, a sealing element is fitted at the bottom of the rotating cylinder 16, and the sealing element is located at the bottom of the processing cylinder 4, so that the bottom of the rotating cylinder 16 extends from the bottom of the processing cylinder 4. The sealing element is a bearing 6, which effectively seals the gap between the rotating cylinder 16 and the processing cylinder 4 to prevent exhaust gas leakage from the processing cylinder 4. A sealing element is fitted in the middle of the sealing plate 9, and a rotatable rotating cylinder 11 is nested in the middle of the sealing element. The sealing element is a bearing 10. A sealing element is fitted in the top opening of the rotating cylinder 11, and an intermediate disk 32 is nested in the middle of the sealing element to seal it. The sealing element is a bearing 12. The bearings 10 and 12 seal the gaps to prevent exhaust gas leakage and ensure the rotation of the rotating cylinder 11. An exhaust gas pipe 13 is provided through the middle of the intermediate disk 32, and one end of the exhaust gas pipe 13 extends into the processing cylinder 4.

[0032] In this invention, a plurality of support columns 2 are fixed to the bottom of the processing cylinder 4, and a support base 1 is fixed to the end of the support column 2. The support column 2 is supported between the support base 1 and the processing cylinder 4. The support base 1 increases the contact area between the device and the bottom surface, making the device stand stably. A drive unit 3 is provided in the middle of the support base 1. At least two horizontal locking rods 5 are fixed on the power output end at the top of the drive unit 3. The horizontal locking rods 5 are locked into the bottom of the rotating cylinder 16, so that the power output end at the top of the drive unit 3 rotates synchronously with the rotating cylinder 16. The drive unit 3 is a high-speed motor.

[0033] In this invention, the spraying assembly includes a vertical pipe 29, an input pipe 34, a fixing frame 35, a threaded ring 36, a mounting bracket 37, a central rod 38, a bearing 39, and an eccentric block 40. Multiple vertical pipes 29 are threaded through the bottom of the secondary spiral pipe 27. The vertical pipes 29 are inserted into the pin holes 42 of the secondary spiral pipe 27. The input pipe 34 and the threaded ring 36 are threadedly connected to the vertical pipe 29, with their ends abutting together. A fixing frame 35 is fixedly mounted on the inner wall of the top of the input pipe 34. The fixing frame 35 consists of a cylinder and multiple elongated blocks. Four elongated blocks are fixed to one end of the cylinder, and one end of each of these four elongated blocks can be welded to... The inner wall of the input tube 34 is fixed with two long strips fixed to the other end of the cylinder. The two long strips at the other end of the cylinder extend out of the input tube 34. The two long strips at the other end of the cylinder can be twisted to make the input tube 34 rotate in the vertical tube 29 and move up and down through the thread. The bottom of the fixing bracket 35 extends out of the input tube 34. The fixing bracket 35 can be twisted to make it rotate in the vertical tube 29 and move up and down through the thread. The inner wall of the threaded ring 36 is fixed with a cross-shaped mounting bracket 37. The middle of the mounting bracket 37 is fixed with a central rod 38. One end of the central rod 38 is fitted with a sealing element, which is a bearing 6 39. An eccentric block 40 is fitted on the bearing 6 39.

[0034] In this invention, the eccentric block 40 is conical, and the angle between the axial direction of the eccentric block 40 and the axial direction of the input pipe 34 is 3°-7°. Multiple spiral grooves 41 are provided on the conical side surface of the eccentric block 40, and these grooves surround the side surface of the eccentric block 40 with the axial direction of the eccentric block 40 as the center. A connecting hole is provided in the middle of the input pipe 34, which is smaller in the middle and larger at both ends, and the two ends of the connecting hole are conical. The apex and side surface of the eccentric block 40 extend into the connecting hole of the input pipe 34, and one generatrix of the eccentric block 40 always remains parallel to the side wall of the connecting hole. Another generatrix at a symmetrical position makes an angle of 6°-14° with the side wall of the connecting hole. The alkaline solution passes through the space between the side surface of the eccentric block 40 and the inner wall of the input pipe 34. The alkaline solution is then sprayed out, impacting the side of the conical eccentric block 40. The alkaline solution flows along the spiral groove 41 on the side of the eccentric block 40. Since the spiral groove 41 is spirally arranged around the side of the eccentric block 40, the reaction force generated by the alkaline solution washing the side of the eccentric block 40 causes it to rotate around the axis of the central rod 38. Due to the biased arrangement of the eccentric block 40, the alkaline solution is continuously agitated during the rotation of the eccentric block 40, so that the alkaline solution is sprayed out evenly. At the same time, the distance between the side of the eccentric block 40 and the inner wall of the input pipe 34 changes with the rotation. During the rotation of the eccentric block 40, the alkaline solution is squeezed, so that the alkaline solution is stirred and squeezed before being sprayed out, and the components of the alkaline solution are mixed more evenly.

[0035] In this invention, multiple outer fan blades 23 surround the bottom surface of the rotating cylinder 11, and multiple inner fan blades 24 surround the inner wall of the top of the rotating cylinder 11. The outer fan blades 23 and inner fan blades 24 are worm gear blades, and the outer fan blades 23 and inner fan blades 24 have opposite curvature directions, so that the airflow direction generated when the outer fan blades 23 and inner fan blades 24 rotate synchronously is opposite. The rotation of the inner fan blades 24 pushes the exhaust gas from top to bottom, so that the exhaust gas enters the high-speed rotating primary spiral tube 20. The exhaust gas flows quickly through the spiral primary filter 21 in the primary spiral tube 20, which can quickly filter the exhaust gas. At the same time, the rotation of the outer fan blades 23 pushes the exhaust gas from bottom to top, so that the exhaust gas is discharged from the bottom of the rotating cylinder 11 and then flows quickly from bottom to top into the secondary spiral tube 27 for secondary filtration.

[0036] In this invention, the bottom opening of the secondary spiral tube 27 is provided with a pin hole 42 corresponding to the position of the spraying component. The vertical tube 29 is inserted into the pin hole 42 of the spiral tube 27, so that the top of the vertical tube 29 extends into the interior of the spiral tube 27. The primary spiral tube 20, the primary filter screen 21, the secondary spiral tube 27, the secondary filter screen 28, and the vertical tube 29 are all spirally wound around the interior of the treatment cylinder 4 with the axis of the rotating cylinder 16 as the center. The inner wall of the spiral tube 27 is fixed with four limiting strips 33, which are located at the two edges of the secondary filter screen 28. The secondary filter screen 28 and the primary filter screen 21 are activated carbon filter screens. The secondary spiral tube 27 spirally wound around the periphery of the rotating cylinder 11. After the exhaust gas enters the secondary spiral tube 27, it moves upward spirally along its interior. The exhaust gas is filtered by the spiral secondary filter screen 28, which increases the filtration area between the exhaust gas and the secondary filter screen, allowing the exhaust gas to pass through the secondary filter screen 28 quickly.

[0037] In this invention, the top surface of the lower baffle 14, the bottom surface of the upper baffle 15, the inner wall of the processing cylinder 4, and the outer side of the rotating cylinder 11 form a solution distribution space. Multiple vertical pipes 29 are spirally wound inside the processing cylinder 4 and are located between the lower baffle 14 and the upper baffle 15, so that the alkaline solution in the solution distribution space enters the secondary spiral pipe 27 through the vertical pipes 29. The solution pipe 7 is located between the lower baffle 14 and the upper baffle 15 and is interconnected with the solution distribution space. The alkaline solution enters the solution distribution space through the solution pipe 7 and then enters multiple input pipes 34. The alkaline solution is sprayed into the secondary spiral pipe 27 through the gap between the input pipe 34 and the side of the deflector block 40.

[0038] In this invention, bearing 6, bearing 10, bearing 12, bearing 39, bearing 4, and bearing 5 are all sealed bearings. Although bearings 6, 10, 12, 39, 25, and 26 are of different sizes, they can all be obtained through market purchase or private customization. The bottom opening of the rotating cylinder 16 is provided with a groove 31 corresponding to the position of the horizontal locking rod 5. The two ends of the primary spiral tube 20 pass through the lower ring plate 18 and the upper ring plate 19, respectively. The secondary filter 28 divides the space inside the secondary spiral tube 27 into two. Two semicircular plates 30 are located at the ends of the two spaces inside the secondary spiral tube 27, and the semicircular plates 30 seal the ports of the two spaces. The two spaces are separated by the secondary filter 28. When the exhaust gas crosses the two spaces, it must pass through the secondary filter 28, so that the exhaust gas must pass through the secondary filter 28 when passing through the secondary spiral tube 27.

[0039] In this invention, the lower support rod 17, the lower ring plate 18, the upper ring plate 19, and the upper support rod 22 are all fixed between the rotating cylinder 11 and the rotating cylinder 16, so that the rotating cylinder 11 and the rotating cylinder 16 can rotate synchronously at high speed. The inner fan blade 24 is fixed between the rotating cylinder 11 and the rotating cylinder 16. Since it is fixed between the rotating cylinder 11 and the rotating cylinder 16 through the above-mentioned multiple structures, the torque on the inner fan blade 24 can be reduced, preventing the inner fan blade 24 from deforming and playing a role in protecting the inner fan blade 24. The initial spiral tube 20 passes through and is fixed in the lower ring plate 18 and the upper ring plate 19. The lower ring plate 18 and the upper ring plate 19 can play a role in fixing the initial spiral tube 20.

[0040] In this invention, bearing 20, bearing 45, and bearing 56 are respectively fitted onto the top, bottom, and middle of the rotating cylinder 11, so that the rotating cylinder 11 is stably supported when it rotates at high speed. This allows the rotating cylinder 11, rotating cylinder 16, lower support rod 17, lower ring plate 18, upper ring plate 19, initial spiral tube 20, initial filter screen 21, upper support rod 22, outer fan blade 23, and inner fan blade 24 to rotate at high speed and operate stably with the axis of the rotating cylinder 16 as the center.

[0041] In some embodiments, during the high-speed rotation of the primary spiral tube 20, the exhaust gas can be rolled from top to bottom, which can greatly increase the flow rate of the exhaust gas in the primary spiral tube 20 and increase the primary filtration efficiency of the exhaust gas.

[0042] In some embodiments, during the high-speed rotation of the primary spiral tube 20, the exhaust gas can be rolled from top to bottom. In this embodiment, the flow rate of the exhaust gas transported by the rotation of the inner fan blade 24 must be greater than the flow rate of the exhaust gas rolled from top to bottom by the primary spiral tube 20. The exhaust gas can then flow from top to bottom in the primary spiral tube 20, which can greatly increase the residence time of the exhaust gas in the primary spiral tube 20, increase the exhaust gas filtration time, and ensure that the primary filtration of the exhaust gas is sufficient.

[0043] In this invention, during use, the exhaust gas cylinder 13 is connected to the exhaust gas, and the solution cylinder 7 is connected to the alkaline solution. The alkaline solution fills the solution distribution space from bottom to top and enters multiple input pipes 34. The alkaline solution impacts the side of the conical eccentric block 40 and flows along the spiral grooves 41 on the side of the eccentric block 40. Since the spiral grooves 41 are spirally arranged around the side of the eccentric block 40, the reaction force generated by the alkaline solution scouring the side of the eccentric block 40 causes it to rotate around the axis of the central rod 38. During the rotation of the eccentric block 40, the alkaline solution is continuously agitated, causing it to be sprayed evenly. The alkaline solution is sprayed into the interior of the secondary spiral tube 27. The recovery pipe 8 can be optionally connected to the exhaust gas storage device. Subsequently, the drive unit 3 is connected to the power supply, and the drive unit 3 drives its power output shaft and multiple horizontal clamps 5 to rotate at high speed, causing the self-rotating cylinder 11, the rotating cylinder 16, and the lower... The structure, including strut 17, lower ring plate 18, upper ring plate 19, primary spiral tube 20, primary filter screen 21, upper strut 22, outer fan blade 23, and inner fan blade 24, rotates at high speed around the axis of the rotating cylinder 16. The inner fan blade 24 rotates and pushes the exhaust gas from top to bottom, allowing the exhaust gas entering the exhaust gas cylinder 13 to enter the high-speed rotating primary spiral tube 20. The exhaust gas flows rapidly through the spiral primary filter screen 21 in the primary spiral tube 20, completing the primary filtration. At the same time, the outer fan blade 27 rotates and pushes the exhaust gas from bottom to top, allowing the exhaust gas to be discharged from the bottom of the rotating cylinder 11 and then quickly flow from bottom to top into the secondary spiral tube 27 for secondary filtration. The exhaust gas is fully mixed with the alkaline solution in the secondary spiral tube 27, and the acidic harmful substances in the exhaust gas are fully neutralized and removed. After two filtrations, the exhaust gas is discharged from the treatment cylinder 4 through the recovery pipe 8, and the exhaust gas is either recovered or directly discharged into the atmosphere.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An environmentally friendly boiler combustion exhaust gas treatment and recovery device, characterized in that: include: The processing unit, support unit, and air intake unit are respectively located at the bottom and top of the processing unit. The processing unit includes a processing cylinder (4), and the inner wall of the processing cylinder (4) is also fixed with a lower baffle (14) and an upper baffle (15); The processing cylinder (4) is equipped with a first spiral assembly for mixing the waste gas with an alkaline solution. The first helical assembly includes: The secondary spiral tube (27) has its two ends passing through the lower baffle (14) and the upper baffle (15), respectively. A semicircular plate (30) is fixed to the end of the secondary spiral tube (27); Secondary filter screen (28) is disposed on the inner wall of the secondary spiral tube (27); The spraying assembly is fixed through the secondary spiral tube (27); The processing cylinder (4) is equipped with a second spiral assembly inside, which filters the exhaust gas by rotating. The second helical assembly includes: The rotating cylinder (11) is rotatably disposed between the lower baffle (14) and the upper baffle (15) through a sealing unit, so that the rotating cylinder (11) can rotate between the lower baffle (14) and the upper baffle (15) and remain sealed. Multiple outer fan blades (23) are fixed to the bottom of the surface of the rotating cylinder (11); Multiple inner fan blades (24) are fixed to the top of the inner wall of the rotating cylinder (11); Rotating cylinder (16) is fixed inside the rotating cylinder (11) by a support component; The lower ring plate (18) is fixedly disposed between the rotating cylinder (16) and the self-rotating cylinder (11); Upper ring plate (19) is fixedly disposed between rotating cylinder (16) and self-rotating cylinder (11); The initial helical tube (20) has its two ends passing through the lower ring plate (18) and the upper ring plate (19), respectively.

2. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 1, characterized in that, The intake unit includes: A sealing plate (9) is placed on top of the processing cylinder (4) and its top is sealed. Two sealing elements of different sizes are respectively fitted inside and outside the top of the rotating cylinder (11); Intermediate disc (32), the intermediate disc (32) is fixed in the middle of the small sealing element; The exhaust pipe (13) passes through the middle of the intermediate plate (32), so that one end of the exhaust pipe (13) extends into the treatment cylinder (4).

3. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 2, characterized in that, The support unit includes: Support columns (2), multiple support columns (2) are fixed to the bottom of the processing cylinder (4); Support base (1), the top of the support base (1) is fixed to the bottom of multiple support columns (2); Drive unit (3), drive unit (3) is fixed to the middle of the top of support base (1); At least two horizontal locking rods (5) are fixed to the power output end at the top of the drive unit (3). The horizontal locking rods (5) are inserted into the bottom of the rotating cylinder (16) so that the power output end at the top of the drive unit (3) rotates synchronously with the rotating cylinder (16).

4. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 1, characterized in that, The spraying assembly includes: A vertical tube (29) is provided at the bottom of the secondary spiral tube (27); The input pipe (34) is threadedly installed in the middle of the vertical pipe (29); A threaded ring (36) is installed in the middle of a vertical pipe (29) by threads, and the end of the inlet pipe (34) and the threaded ring (36) abut together; A fixing bracket (35) is provided on the inner wall of the top of the input tube (34), and the bottom of the fixing bracket (35) extends out of the input tube (34); Mounting bracket (37), one end of which is fixed to the inner wall of the threaded ring (36); A center rod (38) is fixed at one end to the middle of the mounting bracket (37), and a bearing six (39) is also fitted at the other end of the center rod (38). Eccentric block (40) is fitted onto bearing six (39).

5. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 4, characterized in that, The eccentric block (40) is conical, and the angle between the axial direction of the eccentric block (40) and the axial direction of the input pipe (34) is 3°-7°. Multiple spiral grooves (41) are provided on the conical side surface of the eccentric block (40), and the multiple spiral grooves (41) surround the side surface of the eccentric block (40) with the axial direction of the eccentric block (40) as the center.

6. The environmentally friendly boiler combustion waste gas treatment and recovery device according to claim 5, characterized in that, The input tube (34) has a connecting hole in the middle. The connecting hole is small in the middle and large at both ends, and the two ends of the connecting hole are conical. The apex and side of the eccentric block (40) extend into the connecting hole of the input tube (34). The eccentric block (40) always has a generatrix that is parallel to the side wall of the connecting hole. The angle between the other generatrix at the symmetrical position of the generatrix and the side wall of the connecting hole is 6°-14°.

7. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 1, characterized in that, Multiple outer fan blades (23) surround the bottom surface of the rotating cylinder (11), and multiple inner fan blades (24) surround the inner wall of the top of the rotating cylinder (11). The outer fan blades (23) and inner fan blades (24) are curved in opposite directions, so that the airflow direction generated when the outer fan blades (23) and inner fan blades (24) rotate synchronously is opposite.

8. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 4, characterized in that, The bottom opening of the secondary spiral tube (27) is provided with a pin hole (42) corresponding to the position of the spraying component. The vertical tube (29) is inserted into the pin hole (42) of the spiral tube (27), so that the top of the vertical tube (29) extends into the interior of the spiral tube (27). The processing unit also includes a limiting strip (33), which is fixed to the inner wall of the spiral tube (27). The four limiting strips (33) are located at the two edges of the secondary filter (28). The primary spiral tube (20), primary filter (21), secondary spiral tube (27), secondary filter (28) and limiting strip (33) are all spirally arranged around the inside of the processing cylinder (4) with the axis of the rotating cylinder (16) as the center.

9. The environmentally friendly boiler combustion waste gas treatment and recovery device according to claim 1, characterized in that, The processing unit further includes: Solution tube (7) is located on one side of the processing cylinder (4) and connected to it; The recovery tube (8) is located on the other side of the processing cylinder (4) and connected to it. The recovery tube (8) and the solution tube (7) have the same specifications.

10. The environmentally friendly boiler combustion exhaust gas treatment and recovery device according to claim 9, characterized in that, The top surface of the lower baffle (14), the bottom surface of the upper baffle (15), the inner wall of the processing cylinder (4), and the outer side of the rotating cylinder (11) form a solution diversion space. Multiple vertical tubes (29) spirally surround the inside of the processing cylinder (4), and multiple vertical tubes (29) are located between the lower baffle (14) and the upper baffle (15), so that the alkaline solution in the solution diversion space enters the secondary spiral tube (27) through the vertical tubes (29). The solution tube (7) is located between the lower baffle (14) and the upper baffle (15) and is interconnected with the solution diversion space. The bottom opening of the rotating cylinder (16) is provided with a groove (31) corresponding to the position of the horizontal locking rod (5). The two ends of the primary spiral tube (20) pass through the lower ring plate (18) and the upper ring plate (19) respectively. The secondary filter (28) divides the space inside the secondary spiral tube (27) into two parts. The two semicircular plates (30) are located at the ends of the two spaces inside the secondary spiral tube (27) respectively, so that the exhaust gas must pass through the secondary filter (28) when passing through the secondary spiral tube (27).

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