A purification device and method for desulfurization wastewater from thermal power plants

Abstract

This invention discloses a purification device and method for desulfurization wastewater from a thermal power plant, relating to the field of wastewater treatment technology. The device includes a vertical pipe with telescopic pipes fixedly connected to its top and bottom ends. First flanges are fixedly connected to the outer edges of the vertical pipe near both the top and bottom. Through the cooperation of the vertical pipe, telescopic pipes, sealing plate, cam, and other structures, the vertical pipe and telescopic pipes can be placed between a water conveying device and a purification device. The vertical pipe and telescopic pipes are installed between the water conveying device and the purification device using bolts, the first flange, and the second flange. A motor drives a transmission rod to rotate, which in turn drives a cam to rotate. The cam drives a top plate to move up and down, which in turn drives a sealing plate to move up and down, thereby discharging the pre-treated desulfurization wastewater and large particulate impurities. The large particulate impurities are filtered by a filter disc, and the desulfurization wastewater flows into the purification device.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a purification device and method for desulfurization wastewater from thermal power plants. Background Technology

[0002] Wastewater generated during the wet desulfurization process of boiler flue gas originates from the effluent from the absorption tower. The impurities contained in the desulfurization and denitrification wastewater are mainly suspended solids, sulfates, chlorides, and trace heavy metals. Many of these substances are Class I pollutants that are strictly controlled under national environmental protection standards. Direct discharge of these substances would cause significant environmental pollution. Therefore, the desulfurization wastewater needs to be purified.

[0003] However, existing desulfurization wastewater purification equipment has some problems in use. It is not convenient to pre-treat desulfurization wastewater in existing equipment. Usually, the desulfurization wastewater is directly poured into the purification equipment and then treated. This operation will increase the workload of the purification equipment and reduce its service life. At the same time, it is not convenient to adjust the stirring efficiency according to changes in the working environment. The disassembly and flexibility of the equipment itself are low, which will affect the applicability of the equipment. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a purification equipment and method for desulfurization wastewater in thermal power plants, which makes the device itself easy to install and disassemble, easy to add or remove the stirring equipment, and easy to clean the inside of the device. It also makes it easy to filter out large particles of impurities after the coagulant and impurities in the desulfurization wastewater have been coagulated.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a desulfurization wastewater purification device for thermal power plants, comprising a vertical pipe, wherein telescopic pipes are fixedly connected to both the top and bottom ends of the vertical pipe, a first flange is fixedly connected to both the top and bottom ends of the outer edge of the vertical pipe, and a second flange is fixedly connected to both the outer edge of the telescopic pipe away from the vertical pipe. A motor is located at the center of the right side of the vertical pipe, and a transmission rod is fixedly connected to the power output shaft of the motor. The left end of the transmission rod penetrates the right side of the vertical pipe and is inserted into the inner wall of the vertical pipe cavity. A first bevel gear is fixedly connected to the center of the outer edge of the transmission rod. A second bevel gear is meshed near the top and bottom of the vertical tube. A support rod is fixedly connected to the side of the second bevel gear away from the transmission rod. A support plate is sleeved on the outer edge of the support rod near the transmission rod. The left and right sides of the support plate are fixedly connected to the inner wall of the vertical tube. Two load-bearing rings are fixedly connected to the outer edge of the support plate. The two adjacent load-bearing rings are located at the top and bottom of the adjacent support plate, respectively. A support ring is fixedly connected to the outer edge of the support rod away from the transmission rod. A first cross groove is opened at the end of the support rod away from the transmission rod. An adjustment mechanism is provided in the inner cavity of the vertical tube.

[0006] Preferably, the adjusting mechanism includes several fixed posts. Each support ring has a first annular groove on the side away from the transmission rod. A third magnetic ring is fixedly connected to each of the first annular grooves. The fixed posts are arranged vertically. Each fixed post has a second cross groove at its top. A first cross rod is located in both the upper first cross groove and the several second cross grooves. The top of the first cross rod is fixedly connected to the bottom of the adjacent fixed post. Fixed rings are fixedly connected to the outer edges of each fixed post near the top and bottom. A second annular groove is formed on the side of each fixed ring away from the center of the fixed post. Each of the second annular grooves is fixedly connected to a first magnetic ring. Each of the outer edges of the fixed column is fixedly connected to a plurality of stirring rods. Adjacent first magnetic rings are respectively fitted with adjacent third magnetic rings and first magnetic rings. A second cross rod is provided in the uppermost second cross groove. A connecting column is fixedly connected to the top of the second cross rod. A connecting ring is fixedly connected to the outer edge of the connecting column near the top and bottom. A third annular groove is opened at the bottom of the lower connecting ring. A fourth magnetic ring is fixedly connected in the third annular groove. The bottom of the fourth magnetic ring is fitted with the adjacent first magnetic ring.

[0007] Preferably, three fixing plates are fixedly connected to the outer edge of the connecting column. Each fixing plate has a through hole in its inner cavity, and a fixing rod is inserted through each through hole. A gear is fixedly connected to the top of each fixing rod. A rotating ring is fixedly connected to the outer edge of each fixing rod near the bottom. The rotating ring is located at the bottom of the fixing plate. A rotating column is fixedly connected to the bottom of each fixing rod. Several brushes are fixedly connected to the outer edge of each rotating column. Three toothed plates are fixedly connected to the side wall of the inner cavity of the telescopic tube away from the vertical tube. The gear meshes with the adjacent toothed plates.

[0008] Preferably, a third cross rod is provided in the first cross groove below, and a limiting post is fixedly connected to the bottom end of the third cross rod. A limiting ring is fixedly connected to the outer edge of the limiting post near the top and bottom. A fourth annular groove is opened on the side of the limiting ring away from the limiting post. A second magnetic ring is fixedly connected in the fourth annular groove. A filter disc is sleeved on the outer edge of the limiting post.

[0009] Preferably, a movable disc is fitted at the center of the outer edge of each support rod, and a connecting hole is opened at the center of the movable disc. The connecting hole is fitted on the outer edge of the support rod, and a fifth annular groove is opened on the inner wall of the connecting hole. Four fixing blocks are fixedly connected at the center of the outer edge of each support rod, and the four adjacent fixing blocks are located in adjacent fifth annular grooves. The inner cavity of each movable disc is opened with four fan-shaped grooves.

[0010] Preferably, each of the fan-shaped grooves is provided with a sealing plate. A vertical rod is fixedly connected to the side of each sealing plate near the transmission rod. The end of each vertical rod away from the sealing plate passes through an adjacent fan-shaped groove. A fixing plate is fixedly connected to the end of each vertical rod away from the sealing plate. A circular groove is opened on the side of each fixing plate near the transmission rod. A magnet is fixedly connected to each circular groove. Two adjacent magnets are fitted together. An L-shaped rod is fixedly connected to the side of each sealing plate away from the transmission rod. An arc-shaped plate is fixedly connected to the end of each L-shaped rod away from the sealing plate. The four arc-shaped plates are fitted together in pairs. The four adjacent arc-shaped plates form a ring. The four adjacent arc-shaped plates are together sleeved on the outer edge of an adjacent support rod. Two limiting plates are fixedly connected to the outer edge of each arc-shaped plate. A second threaded hole is opened in the inner cavity of each limiting plate. A threaded rod is threadedly connected to two adjacent second threaded holes.

[0011] Preferably, cams are fixedly connected to the outer edge of the transmission rod near the left and right sides, and vertical holes are opened in the inner cavity of the support plate near the left and right sides. A Y-shaped rod is inserted through the vertical hole. A roller is fixedly connected to the end of the Y-shaped rod near the transmission rod, and two top plates are fixedly connected to the end of the Y-shaped rod away from the transmission rod. The top plates are located in adjacent fan-shaped grooves, and the cams and the two adjacent rollers are fitted together.

[0012] Preferably, an adjusting ring is fixedly connected to the outer edge of the motor, and adjusting rods are fixedly connected to the top and bottom of the adjusting ring. The end of the adjusting rod away from the adjusting ring is fixedly connected to the outer edge of the vertical pipe. The inner cavities of the first flange and the second flange are each provided with four first threaded holes, and bolts are threaded into two adjacent first threaded holes.

[0013] A method for purifying desulfurization wastewater from a thermal power plant includes the following steps:

[0014] S1: Before the purification equipment starts working, place the vertical pipe and two telescopic pipes between the water supply device and the purification equipment. Fit the upper second flange to the water supply device and the lower second flange to the purification equipment. Take out the bolts and thread them through the adjacent first and second flanges. Connect one end of the bolts to the surfaces of the adjacent water supply device and purification equipment to complete the connection of the device. The telescopic pipes can be used to connect water supply devices and purification equipment at different distances, thereby expanding the applicability of the device.

[0015] S2: The water conveying device delivers the desulfurization wastewater to the upper expansion pipe and vertical pipe. The upper movable plate and sealing plate block the wastewater. Then, the coagulant is poured into the upper expansion pipe and vertical pipe through the water conveying device. The coagulant will come into contact with the desulfurization wastewater and coagulate the suspended solids and colloidal substances in the desulfurization wastewater into large particles. The large particles will fall onto the top of the multiple sealing plates above. Then, the desulfurization wastewater is left to stand for 10-15 minutes.

[0016] S3: Then start the motor. The motor drives the transmission rod to rotate, which in turn drives the first bevel gear to rotate. The first bevel gear drives two second bevel gears to rotate, which in turn drives the support rod to rotate. The support rod drives the support ring, the third magnetic ring, and the adjacent first cross rod to rotate. The third magnetic ring adheres to and connects with the adjacent first magnetic ring, ensuring the connection effect of the fixed column. The first cross rod drives the fixed column to rotate, which in turn drives the stirring rod to rotate. The stirring rod stirs the desulfurization wastewater, allowing the coagulant to fully contact the suspended solids and colloidal substances in the desulfurization wastewater. When the fixed column rotates, it drives the second cross rod to rotate, which in turn drives the connecting column to rotate. The connecting column drives the fixed plate to rotate, and the fixed plate drives the gear and rotating column to rotate via the fixed rod. When the gear rotates around the connecting column, it contacts the toothed plate on the surface of the telescopic tube. The gear meshes with the toothed plate, and the gear rotates on its own. The gear drives the fixed rod, the rotating ring, and the rotating column to rotate, and the rotating column drives the brush to rotate. The brush cleans the inner wall of the telescopic tube.

[0017] S4: When the transmission rod rotates, it drives the cam to rotate. The cam drives two rollers that are in contact with each other to move up and down. The rollers drive the Y-shaped rod to move up and down. The Y-shaped rod drives the top plate to move up and down. The top plate drives the adjacent sealing plate to move up and down. When the upper sealing plate moves up and down, the fan-shaped groove inside the movable plate is exposed. The desulfurization wastewater and large particulate impurities will move into the lower telescopic pipe. The upper and lower sealing plates are connected by a vertical rod, a fixed plate and a magnet. When the sealing plate moves up and down, it will drive the L-shaped rod, the arc plate, the limiting plate and the threaded rod to move up and down on the surface of the adjacent support rod.

[0018] S5: When desulfurization wastewater and large particulate impurities enter the lower telescopic pipe, the filter disc will filter the large particulate impurities. The desulfurization wastewater that has undergone preliminary treatment will enter the purification equipment for subsequent processing.

[0019] S6: After finishing the work, begin disassembling the equipment inside the vertical pipe and telescopic pipe that requires cleaning and maintenance. Move the connecting column upwards, which drives the second crossbar upwards, moving it away from the adjacent fixed column. This allows for the disassembly and cleaning of the rotating column and brush. Then, move the fixed columns upwards sequentially, which drives the first crossbar upwards. The fixed columns then drive the stirring rod upwards, allowing for the disassembly and cleaning of the stirring rod. The number of fixed columns and stirring rods placed inside the telescopic pipe depends on the distance between the water supply device and the purification equipment. The number of fixed columns and stirring rods can be increased or decreased. Next, move the limiting column downwards, causing the second magnetic ring on one side of the limiting column to move away from the adjacent third magnetic ring. The limiting column then drives the third crossbar downwards, which in turn moves the filter disc downwards, removing large particles of impurities from the top of the filter disc. This device can be interchanged in its vertical position and has multiple arrangement combinations to adapt to different working environments.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention utilizes the interplay between structures such as a vertical pipe, a telescopic pipe, a sealing plate, and a cam to place the vertical pipe and telescopic pipe between the water conveying device and the purification equipment. The vertical pipe and telescopic pipe are installed between the water conveying device and the purification equipment using bolts, a first flange, and a second flange. A motor drives a transmission rod to rotate, which in turn drives a cam to rotate. The cam then drives a top plate to move up and down, which in turn drives a sealing plate to move up and down. This process discharges the pre-treated desulfurization wastewater and large particulate impurities. The large particulate impurities are filtered by the filter disc, and the desulfurization wastewater flows into the purification equipment.

[0022] By coordinating the components such as fixed columns, stirring rods, brushes, and filter discs, multiple fixed columns can be assembled by placing them inside adjacent support rods and fixed columns via a first crossbar. A connecting column is then placed inside the top fixed column via a second crossbar, thus installing the rotating column and brush. When the motor drives the transmission rod to rotate, the transmission rod drives the second bevel gear via a first bevel gear, which in turn drives the support rod to rotate. The support rod, in turn, drives the fixed columns and stirring rod to rotate via the first crossbar. Finally, the top fixed column, via the second crossbar, drives the rotating column and brush to rotate, thereby cleaning the inner wall of the telescopic tube. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a schematic diagram of the vertical tube structure of the component of the present invention;

[0026] Figure 4 This is an exploded view of the fixing column of the component of the present invention;

[0027] Figure 5 This is a schematic diagram of the fixing column structure of the component of the present invention;

[0028] Figure 6 This is a schematic diagram of the first crossbar structure of the component of the present invention;

[0029] Figure 7 This is a schematic diagram of the component fixing plate structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the rotating column structure of the component of the present invention;

[0031] Figure 9 This is an exploded view of the filter disc, a component of the present invention.

[0032] Figure 10 This is an exploded view of the filter disc, a component of the present invention, viewed from below.

[0033] Figure 11 This is a schematic cross-sectional view of the vertical tube structure of the component of the present invention;

[0034] Figure 12 This is a front view of the motor component of the present invention;

[0035] Figure 13 This is an exploded view of the motor component of the present invention;

[0036] Figure 14 This is an exploded view of the support rod of the component of the present invention;

[0037] Figure 15 This is an exploded view of the support rod of the component of the present invention from a bottom angle;

[0038] Figure 16 This is a schematic diagram of the telescopic tube structure of the component of the present invention;

[0039] Figure 17 for Figure 7 Enlarged view of point A in the middle;

[0040] Figure 18 for Figure 8 Enlarged view at point B in the middle;

[0041] Figure 19 for Figure 14 Enlarged view of point C in the middle.

[0042] Labels in the diagram: 1. Vertical pipe; 2. Telescopic pipe; 3. First flange; 4. Second flange; 5. Bolt; 6. Stirring rod; 7. First crossbar; 8. Fixing ring; 9. Fixing column; 10. First magnetic ring; 11. Fixing plate; 12. Second crossbar; 13. Rotating column; 14. Brush; 15. Connecting ring; 16. Connecting column; 17. Third crossbar; 18. Limiting column; 19. Limiting ring; 20. Second magnetic ring; 21. Filter disc; 22. Motor; 23. Transmission rod; 24. Adjusting ring; 25. Adjusting rod 26. Cam; 27. First bevel gear; 28. Sealing plate; 29. ​​Movable disc; 30. Vertical rod; 31. Fixed disc; 32. Support plate; 33. Second bevel gear; 34. Support rod; 35. Support ring; 36. Fixed block; 37. Third magnetic ring; 38. Top plate; 39. Y-shaped rod; 40. Roller; 41. Magnet; 42. Gear; 43. Rotating ring; 44. Fixed rod; 45. Fourth magnetic ring; 46. L-shaped rod; 47. Arc plate; 48. Limiting plate; 49. Threaded rod; 50. Toothed plate. Detailed Implementation

[0043] Please see Figure 1-19 The present invention provides a technical solution:

[0044] Example 1:

[0045] A desulfurization wastewater purification device for thermal power plants includes a vertical pipe 1. Telescopic pipes 2 are fixedly connected to both the top and bottom of the vertical pipe 1. First flanges 3 are fixedly connected to the outer edges of the vertical pipe 1 near the top and bottom. Second flanges 4 are fixedly connected to the outer edges of the telescopic pipes 2 away from the vertical pipe 1. A motor 22 is located at the center of the right side of the vertical pipe 1. A transmission rod 23 is fixedly connected to the power output shaft of the motor 22. The left end of the transmission rod 23 passes through the right side of the vertical pipe 1 and is inserted into the inner wall of the vertical pipe 1. A first bevel gear 27 is fixedly connected to the center of the outer edge of the transmission rod 23. The left side of the first bevel gear 27 is meshed with [missing information - likely related to the top and bottom]. There is a second bevel gear 33. A support rod 34 is fixedly connected to the side of the second bevel gear 33 away from the transmission rod 23. A support plate 32 is sleeved on the side of the outer edge of the support rod 34 close to the transmission rod 23. The left and right sides of the support plate 32 are fixedly connected to the inner wall of the vertical tube 1. Two load-bearing rings are fixedly connected to the outer edge of the support plate 32. The two adjacent load-bearing rings are located at the top and bottom of the adjacent support plate 32, respectively. A support ring 35 is fixedly connected to the side of the outer edge of the support rod 34 away from the transmission rod 23. A first cross groove is opened at the end of the support rod 34 away from the transmission rod 23. An adjustment mechanism is provided in the inner cavity of the vertical tube 1.

[0046] A movable disc 29 is fitted at the center of the outer edge of each support rod 34. A connecting hole is formed at the center of each movable disc 29, fitting onto the outer edge of the support rod 34. A fifth annular groove is formed on the inner wall of the connecting hole. Four fixing blocks 36 are fixedly connected to the center of the outer edge of each support rod 34. The four adjacent fixing blocks 36 are located within adjacent fifth annular grooves. Four sector-shaped grooves are formed within the inner cavity of each movable disc 29. A sealing plate 28 is installed within each sector-shaped groove. A vertical rod 30 is fixedly connected to the side of the sealing plate 28 closest to the transmission rod 23. The end of the vertical rod 30 away from the sealing plate 28 passes through an adjacent sector-shaped groove. A fixing disc 31 is fixedly connected to the end of the vertical rod 30 away from the sealing plate 28. 31 has a circular groove on the side near the transmission rod 23, and a magnet 41 is fixedly connected in the groove. Two adjacent magnets 41 are fitted together. An L-shaped rod 46 is fixedly connected on the side of the sealing plate 28 away from the transmission rod 23. An arc plate 47 is fixedly connected to the end of the L-shaped rod 46 away from the sealing plate 28. The four arc plates 47 are fitted together in pairs. The four adjacent arc plates 47 form a ring. The four adjacent arc plates 47 are fitted together on the outer edge of the adjacent support rod 34. Two limiting plates 48 are fixedly connected to the outer edge of the arc plate 47. The inner cavity of the limiting plate 48 has a second threaded hole. A threaded rod 49 is threadedly connected to two adjacent second threaded holes.

[0047] Cams 26 are fixedly connected to the outer edge of the transmission rod 23 near the left and right sides. Vertical holes are opened in the inner cavity of the support plate 32 near the left and right sides. Y-shaped rods 39 are inserted through the vertical holes. Rollers 40 are fixedly connected to the end of the Y-shaped rods 39 near the transmission rod 23. Two top plates 38 are fixedly connected to the end of the Y-shaped rods 39 away from the transmission rod 23. The top plates 38 are located in adjacent fan-shaped grooves. Cams 26 and two adjacent rollers 40 are fitted together. An adjusting ring 24 is fixedly connected to the outer edge of the motor 22. Adjusting rods 25 are fixedly connected to the top and bottom of the adjusting ring 24. The end of the adjusting rod 25 away from the adjusting ring 24 is fixedly connected to the outer edge of the vertical pipe 1. Four first threaded holes are opened in the inner cavity of the first flange 3 and the second flange 4. Bolts 5 are threadedly connected to two adjacent first threaded holes.

[0048] The vertical pipe 1 and the telescopic pipe 2 are placed between the water conveying device and the purification equipment. The vertical pipe 1 and the telescopic pipe 2 are installed between the water conveying device and the purification equipment by bolts 5, first flange 3 and second flange 4. The motor 22 drives the transmission rod 23 to rotate, the transmission rod 23 drives the cam 26 to rotate, the cam 26 drives the top plate 38 to move up and down, and the top plate 38 drives the sealing plate 28 to move up and down, thereby discharging the pre-treated desulfurization wastewater and large particulate impurities. The large particulate impurities are filtered by the filter plate 21, and the desulfurization wastewater flows into the purification equipment.

[0049] Example 2:

[0050] The adjusting mechanism includes several fixed posts 9. Each support ring 35 has a first annular groove on the side away from the transmission rod 23. A third magnetic ring 37 is fixedly connected to each of the first annular grooves. The fixed posts 9 are arranged vertically. Each fixed post 9 has a second cross groove at its top. A first cross rod 7 is installed in both the upper first cross groove and the several second cross grooves. The top of the first cross rod 7 is fixedly connected to the bottom of the adjacent fixed post 9. Fixed rings 8 are fixedly connected to the outer edges of the fixed posts 9 near the top and bottom. Each fixed ring 8 has a second annular groove on the side away from the center of the fixed post 9. A third magnetic ring 37 is fixedly connected to each of the second annular grooves. A first magnetic ring 10 is connected, and several stirring rods 6 are fixedly connected to the outer edge of the fixed column 9. The adjacent first magnetic rings 10 are respectively fitted with the adjacent third magnetic rings 37 and the first magnetic rings 10. A second cross rod 12 is provided in the uppermost second cross groove. A connecting column 16 is fixedly connected to the top of the second cross rod 12. A connecting ring 15 is fixedly connected to the outer edge of the connecting column 16 near the top and bottom. A third annular groove is opened at the bottom of the lower connecting ring 15. A fourth magnetic ring 45 is fixedly connected in the third annular groove. The bottom of the fourth magnetic ring 45 is fitted with the adjacent first magnetic ring 10.

[0051] Three fixing plates 11 are fixedly connected to the outer edge of the connecting column 16. Each fixing plate 11 has a through hole in its inner cavity. A fixing rod 44 passes through each through hole. A gear 42 is fixedly connected to the top of the fixing rod 44. A rotating ring 43 is fixedly connected to the outer edge of the fixing rod 44 near the bottom. The rotating ring 43 is located at the bottom of the fixing plate 11. A rotating column 13 is fixedly connected to the bottom of the fixing rod 44. Several brushes 14 are fixedly connected to the outer edge of the rotating column 13. Three toothed plates 50 are fixedly connected to the side wall of the inner cavity of the telescopic tube 2 away from the vertical tube 1. The gear 42 meshes with the adjacent toothed plates 50. A third cross rod 17 is provided in the first cross groove below. A limit post 18 is fixedly connected to the bottom of the third cross rod 17. A limit ring 19 is fixedly connected to the outer edge of the limit post 18 near the top and bottom. A fourth annular groove is provided on the side of the limit ring 19 away from the limit post 18. A second magnetic ring 20 is fixedly connected to the fourth annular groove. A filter disc 21 is sleeved on the outer edge of the limit post 18.

[0052] Multiple fixed columns 9 are placed inside adjacent support rods 34 and fixed columns 9 via the first cross rod 7 to assemble them. The connecting column 16 is placed inside the uppermost fixed column 9 via the second cross rod 12 to install the rotating column 13 and brush 14. When the motor 22 drives the transmission rod 23 to rotate, the transmission rod 23 drives the second bevel gear 33 to rotate via the first bevel gear 27. The second bevel gear 33 drives the support rod 34 to rotate. The support rod 34 drives the fixed column 9 and stirring rod 6 to rotate via the first cross rod 7. The uppermost fixed column 9 drives the rotating column 13 and brush 14 to rotate via the second cross rod 12, thereby cleaning the inner wall of the telescopic tube 2.

[0053] A method for purifying desulfurization wastewater from a thermal power plant includes the following steps:

[0054] S1: Before the purification equipment starts working, place the vertical pipe 1 and the two telescopic pipes 2 between the water supply device and the purification equipment, attach the upper second flange 4 to the water supply device, attach the lower second flange 4 to the purification equipment, take out the bolt 5, and pass the bolt 5 through the adjacent first flange 3 and second flange 4. One end of the bolt 5 will be connected to the surface of the adjacent water supply device and purification equipment, thereby completing the connection effect of this device. The telescopic pipe 2 can be used to connect water supply devices and purification equipment at different distances, thereby expanding the applicability of the device.

[0055] S2: The water conveying device delivers the desulfurization wastewater to the upper telescopic pipe 2 and the vertical pipe 1. The upper movable plate 29 and sealing plate 28 block the wastewater. Then, the coagulant is poured into the upper telescopic pipe 2 and the vertical pipe 1 through the water conveying device. The coagulant will come into contact with the desulfurization wastewater and coagulate the suspended solids and colloidal substances in the desulfurization wastewater into large particles. The large particles will fall onto the top of the multiple sealing plates 28. Then, the desulfurization wastewater is left to stand for 10-15 minutes.

[0056] S3: Then, motor 22 is started. Motor 22 drives transmission rod 23 to rotate, transmission rod 23 drives first bevel gear 27 to rotate, first bevel gear 27 drives two second bevel gears 33 to rotate, second bevel gears 33 drive support rod 34 to rotate, support rod 34 drives support ring 35, third magnetic ring 37 and adjacent first cross rod 7 to rotate. Third magnetic ring 37 adsorbs and adheres to adjacent first magnetic ring 10, ensuring the connection effect of fixed column 9. First cross rod 7 drives fixed column 9 to rotate, fixed column 9 drives stirring rod 6 to rotate, stirring rod 6 to stir desulfurization wastewater, so that coagulant can fully react with desulfurization wastewater. When suspended matter and colloidal substances come into contact, the rotation of the fixed column 9 will drive the second cross rod 12 to rotate, the second cross rod 12 will drive the connecting column 16 to rotate, the connecting column 16 will drive the fixed plate 11 to rotate, and the fixed plate 11 will drive the gear 42 and the rotating column 13 to rotate through the fixed rod 44. When the gear 42 rotates around the connecting column 16, it will contact the toothed plate 50 on the surface of the telescopic tube 2. The gear 42 will mesh with the toothed plate 50, and the gear 42 will rotate on its own. The gear 42 will drive the fixed rod 44, the rotating ring 43 and the rotating column 13 to rotate, and the rotating column 13 will drive the brush 14 to rotate. The brush 14 will clean the inner wall of the telescopic tube 2.

[0057] S4: When the transmission rod 23 rotates, the transmission rod 23 drives the cam 26 to rotate, the cam 26 drives the two rollers 40 that are in contact with each other to move up and down, the rollers 40 drive the Y-shaped rod 39 to move up and down, the Y-shaped rod 39 drives the top plate 38 to move up and down, the top plate 38 drives the adjacent sealing plate 28 to move up and down. When the upper sealing plate 28 moves up and down, the fan-shaped groove inside the movable plate 29 is exposed, and the desulfurization wastewater and large particulate impurities will move into the lower telescopic pipe 2. The upper and lower sealing plates 28 are connected by the vertical rod 30, the fixed plate 31 and the magnet 41. When the sealing plate 28 moves up and down, it will drive the L-shaped rod 46, the arc plate 47, the limiting plate 48 and the threaded rod 49 to move up and down on the surface of the adjacent support rod 34.

[0058] S5: When the desulfurization wastewater and large particulate impurities enter the lower telescopic pipe 2, the filter disc 21 will filter the large particulate impurities. The desulfurization wastewater that has undergone preliminary treatment will enter the purification equipment for subsequent processing.

[0059] S6: After finishing the work, begin disassembling the equipment inside the vertical pipe 1 and the telescopic pipe 2 that requires cleaning and maintenance. Move the connecting column 16 upward, which drives the second cross rod 12 upward. The second cross rod 12 moves away from the interior of the adjacent fixed column 9, thereby disassembling and cleaning the rotating column 13 and the brush 14. Then, move the fixed column 9 upward in sequence. The fixed column 9 drives the first cross rod 7 upward, and the fixed column 9 drives the stirring rod 6 upward, thereby disassembling and cleaning the stirring rod 6. At the same time, the number of fixed columns 9 and stirring rods 6 placed inside the telescopic pipe 2 is determined according to the distance between the water conveying device and the purification equipment. The number of fixed columns 9 and stirring rods 6 can be increased or decreased. Then, move the limiting column 18 downward. The second magnetic ring 20 on one side of the limiting column 18 will move away from the adjacent third magnetic ring 37. The limiting column 18 drives the third cross rod 17 downward, and the limiting column 18 drives the filter disc 21 downward, thereby removing large particles of impurities from the top of the filter disc 21. The upper and lower positions of this device can be interchanged, and it has multiple arrangement and combination methods to adapt to different working environments.

[0060] Working principle: Before the purification equipment starts working, place the vertical pipe 1 and two telescopic pipes 2 between the water supply device and the purification equipment. Fit the upper second flange 4 with the water supply device and the lower second flange 4 with the purification equipment. Take out the bolt 5 and pass the bolt 5 through the adjacent first flange 3 and second flange 4. One end of the bolt 5 will be connected to the surface of the adjacent water supply device and purification equipment, thereby completing the connection effect of this device. The telescopic pipe 2 can be used to connect water supply devices and purification equipment at different distances, thereby expanding the application range of the device.

[0061] The water conveying device transports the desulfurization wastewater into the upper telescopic pipe 2 and vertical pipe 1. The upper movable plate 29 and sealing plate 28 block the wastewater. Then, the coagulant is poured into the upper telescopic pipe 2 and vertical pipe 1 through the water conveying device. The coagulant will come into contact with the desulfurization wastewater and coagulate the suspended solids and colloidal substances in the wastewater into large particles. The large particles will fall onto the top of the multiple sealing plates 28. The desulfurization wastewater is then left to stand for 10-15 minutes. After that, the motor 22 is started. The motor 22 drives the transmission rod 23 to rotate, which in turn drives the first bevel gear 27 to rotate. The first bevel gear 27 drives the two second bevel gears 33 to rotate, and the second bevel gears 33 drive... The support rod 34 rotates, causing the support ring 35, the third magnetic ring 37, and the adjacent first cross rod 7 to rotate. The third magnetic ring 37 adheres to and connects with the adjacent first magnetic ring 10, ensuring the connection effect of the fixed column 9. The first cross rod 7 drives the fixed column 9 to rotate, which in turn drives the stirring rod 6 to rotate. The stirring rod 6 stirs the desulfurization wastewater, allowing the coagulant to fully contact the suspended solids and colloidal substances in the wastewater. When the fixed column 9 rotates, it drives the second cross rod 12 to rotate, which in turn drives the connecting column 16 to rotate. The connecting column 16 drives the fixed plate 11 to rotate, and the fixed plate 11 drives the gear through the fixed rod 44. Gear 42 and rotating column 13 rotate. When gear 42 rotates around connecting column 16, it will contact the toothed plate 50 on the surface of telescopic tube 2. Gear 42 meshes with toothed plate 50, and gear 42 rotates on its own. Gear 42 drives fixed rod 44, rotating ring 43 and rotating column 13 to rotate. Rotating column 13 drives brush 14 to rotate. Brush 14 cleans the inner wall of telescopic tube 2. When transmission rod 23 rotates, transmission rod 23 drives cam 26 to rotate. Cam 26 drives two rollers 40 that are in contact with each other to move up and down. Rollers 40 drive Y-shaped rod 39 to move up and down. Y-shaped rod 39 drives top plate 38 to move up and down. Top plate 38 drives... The adjacent sealing plates 28 move up and down. When the upper sealing plate 28 moves up and down, the fan-shaped groove inside the movable plate 29 is exposed, and the desulfurization wastewater and large particulate impurities will move into the lower telescopic pipe 2. The upper and lower sealing plates 28 are connected by the vertical rod 30, the fixed plate 31 and the magnet 41. When the sealing plate 28 moves up and down, it will drive the L-shaped rod 46, the arc plate 47, the limiting plate 48 and the threaded rod 49 to move up and down on the surface of the adjacent support rod 34. When the desulfurization wastewater and large particulate impurities enter the lower telescopic pipe 2, the filter plate 21 will filter the large particulate impurities. The desulfurization wastewater that has been pre-treated will enter the purification equipment for subsequent processing.

[0062] After finishing the work, the equipment inside the vertical pipe 1 and the telescopic pipe 2 that requires cleaning and maintenance is disassembled. The connecting column 16 is moved upwards, causing the second crossbar 12 to move upwards, moving it away from the adjacent fixed column 9. This allows for the disassembly and cleaning of the rotating column 13 and the brush 14. Then, the fixed columns 9 are moved upwards sequentially, causing the first crossbar 7 to move upwards, which in turn causes the stirring rod 6 to move upwards, allowing for the disassembly and cleaning of the stirring rod 6. The number of fixed columns 9 and stirring rods 6 placed inside the telescopic pipe 2 is determined by the distance between the water supply device and the purification equipment; the number of fixed columns 9 and stirring rods 6 can be increased or decreased. Finally, the limiting column 18 is moved downwards. The second magnetic ring 20 on one side will move away from the adjacent third magnetic ring 37. The limiting post 18 drives the third cross rod 17 to move downward. The limiting post 18 drives the filter disc 21 to move downward, thereby removing large particles of impurities from the top of the filter disc 21. When it is necessary to disassemble the sealing plate 28, first remove the threaded rod 49 from inside the limiting plate 48, then move the two adjacent magnets 41 away from each other, and move the sealing plate 28. The sealing plate 28 drives the vertical rod 30, the fixed disc 31 and the magnets 41 to move. The sealing plate 28 drives the L-shaped rod 46, the arc plate 47 and the limiting plate 48 to move, thereby disassembling the sealing plate 28. The upper and lower positions of this device can be interchanged, and it has a variety of arrangement and combination methods to adapt to different working environments.

Claims

1. A desulfurization wastewater purification device for thermal power plants, comprising a vertical pipe (1), characterized in that: The top and bottom ends of the vertical pipe (1) are fixedly connected to telescopic pipes (2). The outer edge of the vertical pipe (1) is fixedly connected to a first flange (3) near the top and bottom. The outer edge of the telescopic pipe (2) away from the vertical pipe (1) is fixedly connected to a second flange (4). A motor (22) is provided at the center of the right side of the vertical pipe (1). The power output shaft of the motor (22) is fixedly connected to a transmission rod (23). The left end of the transmission rod (23) passes through the right side of the vertical pipe (1) and is inserted into the inner wall of the vertical pipe (1). A first bevel gear (27) is fixedly connected at the center of the outer edge of the transmission rod (23). A second bevel gear (33) is meshed on the left side of the first bevel gear (27) near the top and bottom. The second bevel gear (33) is fixedly connected to a support rod (34) on the side away from the transmission rod (23). A support plate (32) is fitted on the side of the outer edge of the support rod (34) close to the transmission rod (23). The left and right sides of the support plate (32) are fixedly connected to the inner wall of the vertical tube (1). Two load-bearing rings are fixedly connected to the outer edge of the support plate (32). The two adjacent load-bearing rings are located at the top and bottom of the adjacent support plate (32), respectively. A support ring (35) is fixedly connected to the side of the outer edge of the support rod (34) away from the transmission rod (23). A first cross groove is opened at the end of the support rod (34) away from the transmission rod (23). An adjustment mechanism is provided in the inner cavity of the vertical tube (1). The adjustment mechanism includes several fixed posts (9). A first annular groove is provided on the side of the support ring (35) away from the transmission rod (23). A third magnetic ring (37) is fixedly connected in each of the first annular grooves. The fixed posts (9) are arranged vertically. A second cross groove is provided at the top of each fixed post (9). A first cross rod (7) is provided in both the upper first cross groove and the several second cross grooves. The top of the first cross rod (7) is fixedly connected to the bottom of the adjacent fixed post (9). A fixed ring (8) is fixedly connected to the outer edge of each fixed post (9) near the top and bottom. A second annular groove is provided on the side of the fixed ring (8) away from the center of the fixed post (9). A third magnetic ring (37) is fixedly connected in each of the second annular grooves. A first magnetic ring (10) is attached to the outer edge of the fixed column (9), and several stirring rods (6) are fixedly connected to each other. The adjacent first magnetic rings (10) are respectively fitted with the adjacent third magnetic rings (37) and the first magnetic rings (10). A second cross rod (12) is provided in the uppermost second cross groove. A connecting column (16) is fixedly connected to the top of the second cross rod (12). A connecting ring (15) is fixedly connected to the outer edge of the connecting column (16) near the top and bottom. A third annular groove is opened at the bottom of the lower connecting ring (15). A fourth magnetic ring (45) is fixedly connected in the third annular groove. The bottom of the fourth magnetic ring (45) is fitted with the adjacent first magnetic ring (10).Three fixing plates (11) are fixedly connected to the outer edge of the connecting column (16). Each fixing plate (11) has a through hole in its inner cavity, through which a fixing rod (44) passes. A gear (42) is fixedly connected to the top of each fixing rod (44). A rotating ring (43) is fixedly connected to the outer edge of each fixing rod (44) near its bottom. The rotating ring (43) is located at the bottom of the fixing plate (11). A rotating column (13) is fixedly connected to the bottom of each fixing rod (44). Several brushes (14) are fixedly connected to the outer edge of each rotating column (13). Three toothed plates (50) are fixedly connected to the side wall of the inner cavity of the telescopic tube (2) away from the vertical tube (1). The gear (42) meshes with the adjacent toothed plate (50).

2. The desulfurization wastewater purification equipment for thermal power plants according to claim 1, characterized in that: A third cross rod (17) is provided in the first cross groove below. A limiting post (18) is fixedly connected to the bottom end of the third cross rod (17). A limiting ring (19) is fixedly connected to the outer edge of the limiting post (18) near the top and bottom. A fourth annular groove is provided on the side of the limiting ring (19) away from the limiting post (18). A second magnetic ring (20) is fixedly connected in the fourth annular groove. A filter disc (21) is sleeved on the outer edge of the limiting post (18).

3. The desulfurization wastewater purification equipment for thermal power plants according to claim 2, characterized in that: Each of the support rods (34) has a movable disc (29) fitted at the center of its outer edge. The movable disc (29) has a connecting hole at its center. The connecting hole is fitted at the outer edge of the support rod (34). The inner wall of the connecting hole has a fifth annular groove. Each of the support rods (34) has four fixed blocks (36) fixedly connected at the center of its outer edge. The four adjacent fixed blocks (36) are located in the adjacent fifth annular groove. Each of the movable discs (29) has four fan-shaped grooves in its inner cavity.

4. The desulfurization wastewater purification equipment for thermal power plants according to claim 3, characterized in that: Each of the fan-shaped slots is provided with a sealing plate (28). A vertical rod (30) is fixedly connected to the side of each sealing plate (28) near the transmission rod (23). The end of each vertical rod (30) away from the sealing plate (28) passes through an adjacent fan-shaped slot. A fixing plate (31) is fixedly connected to the end of each vertical rod (30) away from the sealing plate (28). A circular groove is opened on the side of each fixing plate (31) near the transmission rod (23). A magnet (41) is fixedly connected to each circular groove. Two adjacent magnets (41) are fitted together. The sealing plate (28) away from the transmission rod (23)... One side is fixedly connected to an L-shaped rod (46), and the end of the L-shaped rod (46) away from the sealing plate (28) is fixedly connected to an arc plate (47). The four arc plates (47) are set in pairs, and the four adjacent arc plates (47) form a ring. The four adjacent arc plates (47) are together sleeved on the outer edge of the adjacent support rod (34). The outer edge of the arc plate (47) is fixedly connected to two limiting plates (48). The inner cavity of the limiting plate (48) is provided with a second threaded hole, and the two adjacent second threaded holes are threaded together with a threaded rod (49).

5. The desulfurization wastewater purification equipment for thermal power plants according to claim 4, characterized in that: Cams (26) are fixedly connected to the outer edge of the transmission rod (23) near the left and right sides. Vertical holes are opened in the inner cavity of the support plate (32) near the left and right sides. Y-shaped rods (39) are inserted through the vertical holes. Rollers (40) are fixedly connected to the end of the Y-shaped rod (39) near the transmission rod (23). Two top plates (38) are fixedly connected to the end of the Y-shaped rod (39) away from the transmission rod (23). The top plates (38) are located in adjacent fan-shaped grooves. The cams (26) and the two adjacent rollers (40) are fitted together.

6. The desulfurization wastewater purification equipment for thermal power plants according to claim 5, characterized in that: An adjusting ring (24) is fixedly connected to the outer edge of the motor (22). An adjusting rod (25) is fixedly connected to the top and bottom of the adjusting ring (24). The end of the adjusting rod (25) away from the adjusting ring (24) is fixedly connected to the outer edge of the vertical pipe (1). The inner cavities of the first flange (3) and the second flange (4) are provided with four first threaded holes. A bolt (5) is threadedly connected to two adjacent first threaded holes.

7. The method of using the desulfurization wastewater purification equipment for thermal power plants according to claim 6, characterized in that, Includes the following steps: S1: Before the purification equipment starts working, place the vertical pipe (1) and two telescopic pipes (2) between the water supply device and the purification equipment, attach the upper second flange (4) to the water supply device, attach the lower second flange (4) to the purification equipment, take out the bolt (5), and pass the bolt (5) through the adjacent first flange (3) and second flange (4). One end of the bolt (5) will be connected to the surface of the adjacent water supply device and purification equipment, thereby completing the connection effect of this device. The telescopic pipe (2) can be connected to water supply devices and purification equipment at different distances, thereby expanding the applicability of the device. S2: The water conveying device delivers the desulfurization wastewater to the upper telescopic pipe (2) and the vertical pipe (1). The upper movable plate (29) and sealing plate (28) block the wastewater. Then, the coagulant is poured into the upper telescopic pipe (2) and the vertical pipe (1) through the water conveying device. The coagulant will come into contact with the desulfurization wastewater. The coagulant will coagulate the suspended solids and colloidal substances in the desulfurization wastewater into large particles. The large particles will fall onto the top of the multiple sealing plates (28) above. Then, the desulfurization wastewater will stand for 10-15 minutes. S3: Then start the motor (22). The motor (22) drives the transmission rod (23) to rotate. The transmission rod (23) drives the first bevel gear (27) to rotate. The first bevel gear (27) drives the two second bevel gears (33) to rotate. The second bevel gears (33) drive the support rod (34) to rotate. The support rod (34) drives the support ring (35), the third magnetic ring (37) and the adjacent first cross rod (7) to rotate. The third magnetic ring (37) and the adjacent first magnetic ring (10) are adsorbed and attached to each other, ensuring the connection effect of the fixed column (9). The first cross rod (7) will drive the fixed column (9) to rotate. The fixed column (9) drives the stirring rod (6) to rotate. The stirring rod (6) stirs the desulfurization wastewater, so that the coagulant can fully react with the suspended solids in the desulfurization wastewater. When the object comes into contact with the colloidal substance, the rotation of the fixed column (9) will drive the second cross rod (12) to rotate, the second cross rod (12) will drive the connecting column (16) to rotate, the connecting column (16) will drive the fixed plate (11) to rotate, the fixed plate (11) will drive the gear (42) and the rotating column (13) to rotate through the fixed rod (44), when the gear (42) rotates around the connecting column (16) as the center, it will contact the toothed plate (50) on the surface of the telescopic tube (2), the gear (42) will mesh with the toothed plate (50), the gear (42) will rotate on its own, the gear (42) will drive the fixed rod (44), the rotating ring (43) and the rotating column (13) to rotate, the rotating column (13) will drive the brush (14) to rotate, and the brush (14) will clean the inner wall of the telescopic tube (2); S4: When the transmission rod (23) rotates, the transmission rod (23) drives the cam (26) to rotate. The cam (26) drives the two rollers (40) that are in contact with each other to move up and down. The rollers (40) drive the Y-shaped rod (39) to move up and down. The Y-shaped rod (39) drives the top plate (38) to move up and down. The top plate (38) drives the adjacent sealing plate (28) to move up and down. When the upper sealing plate (28) moves up and down, the fan-shaped groove inside the movable plate (29) is exposed. The desulfurization wastewater and large particulate impurities will move into the lower telescopic pipe (2). The upper and lower sealing plates (28) are connected by the vertical rod (30), the fixed plate (31) and the magnet (41). When the sealing plate (28) moves up and down, it will drive the L-shaped rod (46), the arc plate (47), the limit plate (48) and the threaded rod (49) to move up and down on the surface of the adjacent support rod (34). S5: When the desulfurization wastewater and large particulate impurities enter the lower telescopic pipe (2), the filter disc (21) will filter the large particulate impurities. The desulfurization wastewater that has undergone preliminary treatment will enter the purification equipment for subsequent processing. S6: After finishing the work, begin disassembling the equipment inside the vertical pipe (1) and the telescopic pipe (2) that needs cleaning and maintenance. Move the connecting column (16) upward, and the connecting column (16) will drive the second cross rod (12) upward. The second cross rod (12) will move away from the interior of the adjacent fixed column (9), thereby disassembling and cleaning the rotating column (13) and the brush (14). Then, move the fixed column (9) upward in sequence. The fixed column (9) will drive the first cross rod (7) upward, and the fixed column (9) will drive the stirring rod (6) upward, thereby disassembling and cleaning the stirring rod (6). At the same time, the fixed column placed inside the telescopic pipe (2) will be cleaned. The number of (9) and stirring rod (6) is determined according to the distance between the water supply device and the purification equipment. The number of fixed column (9) and stirring rod (6) can be increased or decreased. Then, the limiting column (18) is moved downward. The second magnetic ring (20) on one side of the limiting column (18) will move away from the adjacent third magnetic ring (37). The limiting column (18) drives the third cross rod (17) to move downward. The limiting column (18) drives the filter plate (21) to move downward, thereby removing large particles of impurities from the top of the filter plate (21). The upper and lower positions of this device can be exchanged, and it has a variety of arrangement and combination methods to adapt to different working environments.

Images