Wastewater treatment device for thermal power plant

Abstract

The invention belongs to the technical field of wastewater treatment, and discloses a wastewater treatment device for a thermal power plant. Comprising a treatment kettle, the top end and the outer side of the treatment kettle are provided with a waste water pipe and a medicine feeding pipe respectively, the top end of the treatment kettle is rotationally connected with a positive and negative tooth lead screw, the top end of the treatment kettle is provided with a motor used for driving the positive and negative tooth lead screw to rotate, and a transmission rod is arranged in the treatment kettle; first spur gears are fixedly connected to the outer sides of the transmission rod and the positive and negative tooth screw rod, and three groups of stirring rods are fixedly connected to the outer side of the transmission rod. According to the device, through the structural design of the traction mechanism and the second valve, when the first valve in the waste water pipe is opened, the traction mechanism can synchronously drive the second valve in the medicine feeding pipe to be synchronously opened, the working efficiency is remarkably improved, the time needed by independent operation is shortened, and the working process is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more particularly to a wastewater treatment device for a thermal power plant. Background Art

[0002] In the operation of thermal power plants, wastewater treatment is a vital link. As an important part of my country's energy supply, thermal power plants will produce a large amount of industrial wastewater containing a variety of chemicals and heavy metals during their production process. If these wastewaters are directly discharged without proper treatment, they will cause serious pollution and damage to the surrounding environment and ecosystem. Therefore, it is particularly important to develop efficient and reliable wastewater treatment equipment. In order to regulate the water quality of wastewater, adding chemical agents in the treatment process is also a necessary part.

[0003] Existing treatment devices are mostly composed of a treatment kettle, a wastewater pipe, a drug supply pipe, a motor and a stirring rod. The stirring rod is installed inside the treatment kettle, and the wastewater pipe and the drug supply pipe are installed at the top and outside of the treatment kettle respectively. Its working principle is as follows: first, the valves inside the wastewater and drug supply pipes are opened, and then the wastewater to be treated is added to the inside of the treatment kettle through the wastewater pipe, and the specified agent is added to the inside of the treatment kettle through the drug supply pipe, and then the motor is started. When the motor is running, it drives the stirring rod to rotate, thereby mixing the wastewater and the chemical agent, thereby achieving some measures in wastewater treatment.

[0004] However, when the existing treatment device is in use, the wastewater and the reagents need to be completely integrated into the interior of the treatment kettle before they can be mixed, which undoubtedly increases the working time. In addition, the valves inside the wastewater pipe and the reagent supply pipe need to be operated separately when opening, which reduces work efficiency. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a wastewater treatment device for a thermal power plant.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater treatment device for a thermal power plant, comprising a treatment kettle, a wastewater pipe and a medicine feeding pipe are respectively installed at the top and the outside of the treatment kettle, the top of the treatment kettle is rotatably connected with a positive and negative threaded rod, the top of the treatment kettle is installed with a motor for driving the positive and negative threaded rod to rotate, a transmission rod is arranged inside the treatment kettle, the transmission rod and the outside of the positive and negative threaded rod are both fixedly connected with a first spur gear, the outside of the transmission rod is fixedly connected with three groups of stirring rods, and the treatment device also includes:

[0007] A collecting pipe, which is arranged inside the treatment kettle and fixedly connected to the inner wall of the treatment kettle, a filter plate is arranged inside the collecting pipe, a stirring blade is fixedly connected to the top of the filter plate, the stirring blade is located directly below the wastewater pipe, and a primary mixing mechanism matched with the stirring blade is arranged on the outer side of the transmission rod, and the primary mixing mechanism is used to drive the stirring blade to rotate;

[0008] The first valve is arranged inside the wastewater pipe, both ends of the first valve are fixedly connected with connecting rods, the first valve passes through the wastewater pipe, a motor for driving the connecting rod to rotate is installed on the top of the treatment kettle, a pair of second valves are slidably connected inside the medicine feeding tube, and a traction mechanism for pulling the second valve is arranged on the outer side of the connecting rod.

[0009] Furthermore, the primary mixing mechanism includes a second spur gear, a third spur gear and a connecting ring plate, the second spur gear is fixedly connected to the outer side of the transmission rod, the top end of the third spur gear is fixedly connected to the connecting ring plate, the connecting ring plate is rotatably connected to the bottom end of the collecting pipe, the inner wall of the connecting ring plate is fixedly connected to the outer side of the filter plate, and the second spur gear is meshed with the third spur gear.

[0010] Further, the traction mechanism includes a fixed plate, a pair of first guide rods, a first baffle, a spring, a nylon rope and a pair of guide wheels, the fixed plates are respectively fixedly connected to the ends of a pair of second valves away from each other, the pair of first guide rods are slidably connected to the inside of the fixed plate, the pair of first guide rods are both fixedly connected to the outer side of the medicine supply tube, the first baffle is fixedly connected to the end of a pair of first guide rods away from the medicine supply tube, the springs are respectively sleeved on the outer side of the pair of first guide rods, the two ends of the spring are respectively fixedly connected to the first baffle and the fixed plate, the nylon rope is fixedly connected to the end of the fixed plate away from the medicine supply tube, the end of the nylon rope away from the fixed plate is fixedly connected to the outer side of the connecting rod, the pair of guide wheels are respectively fixedly connected to the end of the first baffle away from the spring and the outer side of the processing kettle, and the nylon rope is in contact with the outer side of a pair of guide wheels.

[0011] Furthermore, the bottom ends of the three groups of stirring rods are rotatably connected to dispersion rods, three pairs of spray plates are fixedly connected to the outer sides of the dispersion rods, and air outlet holes are opened at the bottom ends of the three pairs of spray plates. The interiors of the transmission rods, stirring rods and spray plates are all connected, an inner gear ring is fixedly connected to the inner wall of the processing kettle, a fourth spur gear is fixedly connected to the outer side of the dispersion rods, and the inner gear ring and the fourth spur gear are meshed with each other. A one-way valve is installed on the outer side of the transmission rod, and a piston plate is slidably connected to the inside of the transmission rod, and a piston rod is fixedly connected to the top of the piston plate, and a lifting mechanism for lifting and lowering the piston plate is arranged on the periphery of the forward and reverse screw rods.

[0012] Furthermore, the lifting mechanism includes a lifting plate, a slider, a pair of second guide rods and a second baffle, the slider is fixed inside the lifting plate, the slider is threadedly connected to the outer sides of the positive and negative screw rods, the pair of second guide rods are slidably connected to the inside of the lifting plate, the pair of second guide rods are fixed to the top of the processing kettle, and the second baffle is fixed to the top of the pair of second guide rods.

[0013] Furthermore, a pair of the second valves have sealing gaskets glued to their adjacent ends, and the sealing gaskets are made of rubber.

[0014] The technical effects and advantages of the wastewater treatment device for a thermal power plant of the present invention are as follows:

[0015] (1) The present invention realizes that when the first valve inside the wastewater pipe is opened, the traction mechanism will simultaneously drive the second valve inside the medicine feeding pipe to open synchronously through the structural design of the traction mechanism and the second valve, which significantly improves work efficiency, reduces the time required for individual operation, and optimizes the work process.

[0016] (2) The present invention realizes that when the transmission rod rotates, the primary mixing mechanism is driven to operate, and the primary mixing mechanism drives the filter plate and the stirring blade to rotate. The rotation of the filter plate and the stirring blade is used to accelerate the initial mixing process of the reagent and the wastewater, so that the two begin to effectively merge at the moment of contact, greatly shortening the mixing time. In addition, the secondary stirring action of the stirring rod further ensures the full mixing of the reagent and the wastewater, thereby improving the overall treatment efficiency.

[0017] (3) The present invention realizes that the stirring rod not only performs conventional stirring when rotating, but also synchronously drives the dispersion rod to make circular motion, thereby driving the spray plate to rotate. When the spray plate rotates, the fourth spur gear fixed to the outside thereof rotates in the opposite direction to the stirring rod under the action of the internal gear ring, thereby realizing layered stirring of the mixture, making the mixture flow more disorderly, and achieving a better mixing effect.

[0018] (4) The present invention realizes the operation of the lifting mechanism and further enhances the stirring effect through the structural design of the lifting mechanism, the piston rod and the piston plate. The lifting mechanism drives the piston plate to squeeze the internal space of the transmission rod through the piston rod, disperses the air to the spray plate and blows it out, and releases it in the mixture of the medicine and wastewater, thereby further improving the stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic cross-sectional view of the processing kettle in the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the second spur gear and the third spur gear in the present invention.

[0022] Figure 4 It is a cross-sectional schematic diagram of the collecting pipe in the present invention.

[0023] Figure 5 It is a schematic cross-sectional view of a wastewater pipe in the present invention.

[0024] Figure 6 For the present invention Figure 5 A is an enlarged structural diagram of FIG.

[0025] Figure 7 It is a schematic diagram of the structure of the lifting plate and the second guide rod in the present invention.

[0026] Figure 8 It is a schematic diagram of the dispersion rod and spray plate structure in the present invention.

[0027] Fig. 9 For the present invention Figure 7 Schematic diagram of the enlarged structure at B.

[0028] Fig.10 It is a cross-sectional schematic diagram of the transmission rod in the present invention.

[0029] In the figure:

[0030] 1. Treatment kettle; 2. Wastewater pipe; 3. Medicine feeding tube; 4. Positive and negative threaded screw; 5. Motor; 6. Transmission rod; 7. First spur gear; 8. Stirring rod; 9. Collecting pipe; 10. Filter plate; 11. Stirring blade; 12. First valve; 13. Connecting rod; 14. Motor; 15. Second valve; 16. Second spur gear; 17. Third spur gear; 18. Connecting ring plate; 19. Fixed plate; 20. First guide rod; 21. First baffle; 22. Spring; 23. Nylon rope; 24. Guide wheel; 25. Dispersion rod; 26. Spray plate; 27. Internal gear ring; 28. Fourth spur gear; 29. ​​One-way valve; 30. Piston plate; 31. Piston rod; 32. Lifting plate; 33. Second guide rod; 34. Second baffle; 35. Sealing pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 - Figure 6As shown, a wastewater treatment device for a thermal power plant includes a treatment kettle 1, a wastewater pipe 2 and a medicine feeding pipe 3 are respectively installed on the top and the outside of the treatment kettle 1, the top of the treatment kettle 1 is rotatably connected with a positive and negative threaded rod 4, the top of the treatment kettle 1 is installed with a motor 5 for driving the positive and negative threaded rod 4 to rotate, a transmission rod 6 is arranged inside the treatment kettle 1, the transmission rod 6 and the outside of the positive and negative threaded rod 4 are both fixedly connected with a first spur gear 7, the outside of the transmission rod 6 is fixedly connected with three groups of stirring rods 8, and the treatment device also includes:

[0033] A manifold 9 is disposed inside the treatment kettle 1 and is fixedly connected to the inner wall of the treatment kettle 1. A filter plate 10 is disposed inside the manifold 9. A stirring blade 11 is fixedly connected to the top of the filter plate 10. The stirring blade 11 is located directly below the wastewater pipe 2. A primary mixing mechanism that cooperates with the stirring blade 11 is disposed on the outer side of the transmission rod 6. The primary mixing mechanism is used to drive the stirring blade 11 to rotate.

[0034] The first valve 12 is arranged inside the wastewater pipe 2, and connecting rods 13 are fixedly connected to both ends of the first valve 12. The first valve 12 passes through the wastewater pipe 2. A motor 14 for driving the connecting rod 13 to rotate is installed on the top of the treatment kettle 1. A pair of second valves 15 are slidably connected inside the medicine feeding tube 3, and a traction mechanism for pulling the second valve 15 is arranged on the outer side of the connecting rod 13.

[0035] When the existing treatment device is in use, it is necessary to wait until the wastewater and the reagent are completely integrated into the interior of the treatment kettle before mixing, which undoubtedly increases the working time, and the valves inside the wastewater pipe 2 and the upper medicine pipe 3 need to be operated separately when opening, which reduces the working efficiency. When the embodiment of the present invention is used, the motor 5 is first started, and the motor 5 drives the positive and negative threaded rod 4 to rotate when it is running. The positive and negative threaded rod 4 drives the transmission rod 6 to rotate through a pair of first spur gears 7 at this time, and the transmission rod 6 drives the stirring rod 8 to rotate when it rotates, and then the motor 14 is started. When the motor 14 is running, it drives the connecting rod 13 to rotate, and the rotation of the connecting rod 13 drives the first valve 12 to open, thereby opening the internal channel of the wastewater pipe 2, and the wastewater can be thrown into the interior of the treatment kettle 1 from the wastewater pipe 2, and when the connecting rod 13 is running, it will pull the traction mechanism to run, and when the traction mechanism is running, it will drive the pair of second valves 15 to move in the divergent direction, thereby opening the internal channel of the upper medicine pipe 3, and the reagent can enter the interior of the treatment kettle 1 from the upper medicine pipe 3. Through the above-mentioned structural design, the wastewater pipe is realized. The internal valves of the wastewater pipe 2 and the medicine supply pipe 3 are opened at the same time, which saves the time required for opening them separately and improves the working efficiency. At this time, wastewater and medicine are respectively added to the inside of the treatment kettle 1 through the wastewater pipe 2 and the medicine supply pipe 3. When the wastewater and medicine enter the inside of the treatment kettle 1, they will first fall on the surface of the filter plate 10 under the action of gravity, so as to be initially mixed. The medicine and wastewater can be quickly fused, avoiding the need to fall into the inside of the treatment kettle 1 for remixing, increasing the working time, and when the transmission rod 6 rotates, it will also drive the initial mixing mechanism to operate, and At this time, the primary mixing mechanism will drive the filter plate 10 and the stirring blade 11 to rotate. When the medicine and wastewater contact the surface of the filter plate 10, they will be affected by the primary mixing mechanism. The rotation of the filter plate 10 and the stirring blade 11 will continuously hit the falling medicine and wastewater, thereby accelerating the mixing of the two. Finally, the mixed medicine passes through the filter plate 10 and falls into the interior of the treatment kettle 1. After being inside the treatment kettle 1, the stirring rod 8 rotates to stir the mixture of the medicine and wastewater again, thereby performing secondary mixing, so as to facilitate the rapid mixing of the medicine and wastewater, greatly improving the work efficiency.

[0036] like Figure 3 and Figure 4 As shown, the primary mixing mechanism includes a second spur gear 16, a third spur gear 17 and a connecting ring plate 18. The second spur gear 16 is fixedly connected to the outer side of the transmission rod 6. The top of the third spur gear 17 is fixedly connected to the connecting ring plate 18. The connecting ring plate 18 is rotatably connected to the bottom end of the collecting pipe 9. The inner wall of the connecting ring plate 18 is fixedly connected to the outer side of the filter plate 10. The second spur gear 16 and the third spur gear 17 are meshed.

[0037] When the transmission rod 6 rotates, it will drive the second spur gear 16 to rotate, and the rotation of the second spur gear 16 will drive the third spur gear 17 to rotate. Since the connecting ring plate 18 is rotatably connected to the bottom end of the collecting pipe 9 and is fixed to the third spur gear 17, when the third spur gear 17 rotates, it will synchronously drive the connecting ring plate 18 to rotate, and the rotation of the connecting ring plate 18 will drive the filter plate 10 and the stirring blade 11 to rotate, thereby colliding with the medicine and wastewater to perform preliminary mixing treatment on them.

[0038] like Figure 5 and Figure 6 As shown, the primary mixing mechanism includes a second spur gear 16, a third spur gear 17 and a connecting ring plate 18. The second spur gear 16 is fixedly connected to the outer side of the transmission rod 6. The top of the third spur gear 17 is fixedly connected to the connecting ring plate 18. The connecting ring plate 18 is rotatably connected to the bottom end of the collecting pipe 9. The inner wall of the connecting ring plate 18 is fixedly connected to the outer side of the filter plate 10. The second spur gear 16 and the third spur gear 17 are meshed.

[0039] In the initial state, the first valve 12 and the pair of second valves 15 are in the state of sealing the waste water pipe 2 and the medicine feeding pipe 3 respectively. When the motor 14 drives the first valve 12 to flip through the connecting rod 13, the first valve 12 will open the seal of the waste water pipe 2, and when the connecting rod 13 rotates, the connecting rod 13 will pull the nylon rope 23 to make it entangled. The setting of the pair of guide wheels 24 can guide the nylon rope 23 to run in a specified direction. When the nylon rope 23 is subjected to force, it will pull the fixed plate 19 to move, and the fixed plate 19 will move. When the connecting rod 13 drives the first valve 12 to reverse and reset, the first valve 12 seals the inside of the waste water pipe 2 again, and the pulling of the nylon rope 23 by the reverse connection of the connecting rod 13 ends, the spring 22 stops being stressed, releases the elastic potential energy, and pushes the fixing plate 19 to reset. The reset of the fixing plate 19 drives the second valve 15 to seal the inside of the waste water pipe 3 again.

[0040] like Figure 7 - Fig.10As shown, the bottom ends of the three groups of stirring rods 8 are rotatably connected to dispersion rods 25, and three pairs of spray plates 26 are fixedly connected to the outer sides of the dispersion rods 25. The bottom ends of the three pairs of spray plates 26 are provided with air outlet holes, and the interiors of the transmission rods 6, the stirring rods 8 and the spray plates 26 are all connected. The inner wall of the processing kettle 1 is fixedly connected with an internal gear ring 27, and the outer side of the dispersion rods 25 is fixedly connected with a fourth spur gear 28, and the internal gear ring 27 and the fourth spur gear 28 are meshed. A one-way valve 29 is installed on the outer side of the transmission rod 6, and the interior of the transmission rod 6 is slidably connected with a piston plate 30, and the top of the piston plate 30 is fixedly connected with a piston rod 31, and the periphery of the forward and reverse screw rods 4 is provided with a lifting mechanism for lifting and lowering the piston plate 30.

[0041] When the existing wastewater and the medicine are mixed, the mixing effect is single and they are often stirred regularly. At this time, the mixture of the medicine and the wastewater also flows in a single manner, and the effect is poor. When the embodiment of the present invention is used, the transmission rod 6 drives the stirring rod 8 to rotate to stir the mixture, and the stirring rod 8 will synchronously drive the dispersion rod 25 to Figure 6 The fourth spur gear 28 is driven to move in a circular motion with the fourth spur gear 28 as the center of the circle, and the dispersion rod 25, when in motion, drives the fourth spur gear 28 to move. During the movement of the fourth spur gear 28, since the fourth spur gear 28 is in meshing state with the inner gear ring 27, the fourth spur gear 28 will rotate. The rotation of the fourth spur gear 28 drives the three pairs of spray plates 26 to rotate through the dispersion rod 25. The direction of rotation of the spray plates 26 is opposite to that of the stirring rod 8, so that the mixture can be layered and stirred. When the mixture is subjected to the impact force generated by the layered stirring, the flow becomes more chaotic, thereby achieving a better Mixing function, and when the motor 5 runs through the forward and reverse screw rods 4, the forward and reverse screw rods 4 will also drive the lifting mechanism to run. When the lifting mechanism drives the piston rod 31 to move downward, the piston rod 31 will drive the piston plate 30 to squeeze the internal space of the transmission rod 6. When the pressure is generated inside the transmission rod 6, it will be transmitted to the inside of the dispersion rod 25 through the stirring rod 8, and then dispersed from the inside of the dispersion rod 25 to the inside of the three pairs of spray plates 26. The spray plates 26 will blow out the air inside at this time, and the blown air will be released in the mixture of medicine and wastewater, further improving the stirring effect.

[0042] like Figure 8 and Fig. 9 As shown, the lifting mechanism includes a lifting plate 32, a slider, a pair of second guide rods 33 and a second baffle 34. The slider is fixed inside the lifting plate 32, and the slider is threadedly connected to the outer side of the positive and negative threaded rods 4. The pair of second guide rods 33 are both slidably connected inside the lifting plate 32, and the pair of second guide rods 33 are both fixed to the top of the processing kettle 1, and the second baffle 34 is fixed to the top of the pair of second guide rods 33.

[0043] When the forward and reverse screw rods 4 rotate, the threads on their outer sides will drive the slider to move back and forth, and the slider is fixedly connected to the lifting plate 32. Therefore, the rotation of the forward and reverse screw rods 4 will drive the lifting plate 32 to move back and forth along a pair of second guide rods 33, and when the lifting plate 32 moves, it will drive the piston plate 30 to move back and forth up and down through the piston rod 31. When the piston plate 30 moves downward, it will compress the internal air of the transmission rod 6, and when the piston plate 30 moves upward, air can be added to the interior of the transmission rod 6 through the one-way valve 29. It should be noted that the setting of the one-way valve 29 can ensure that only air can enter the interior of the transmission rod 6 and cannot be discharged.

[0044] like Figure 6 As shown, a pair of the second valves 15 are both glued with sealing gaskets 35 at their adjacent ends, and the sealing gaskets 35 are made of rubber.

[0045] The rubber material of the pair of sealing pads 35 can increase the sealing performance when the pair of second valves 15 are attached.

[0046] Working principle: When the existing treatment device is in use, it is necessary to wait until the wastewater and the reagent are completely integrated into the interior of the treatment kettle before mixing, which undoubtedly increases the working time, and the valves inside the wastewater pipe 2 and the upper medicine pipe 3 need to be operated separately when opening, which reduces the working efficiency. When the embodiment of the present invention is used, the motor 5 is first started, and the motor 5 drives the positive and negative threaded rod 4 to rotate when it is running. The positive and negative threaded rod 4 drives the transmission rod 6 to rotate through a pair of first spur gears 7 at this time, and the transmission rod 6 drives the stirring rod 8 to rotate when it rotates, and then the motor 14 is started. When the motor 14 is running, it drives the connecting rod 13 to rotate, and the rotation of the connecting rod 13 drives the first valve 12 to open, thereby opening the internal channel of the wastewater pipe 2, and the wastewater can be put into the interior of the treatment kettle 1 from the wastewater pipe 2, and when the connecting rod 13 is running, it will pull the traction mechanism to run, and when the traction mechanism is running, it will drive the pair of second valves 15 to move in the divergent direction, thereby opening the internal channel of the upper medicine pipe 3, and the reagent can enter the interior of the treatment kettle 1 from the upper medicine pipe 3. Through the above-mentioned structural design, it is realized The internal valves of the wastewater pipe 2 and the drug supply pipe 3 are opened at the same time, which saves the time required for opening them separately and improves the working efficiency. At this time, wastewater and drugs are respectively added to the inside of the treatment kettle 1 through the wastewater pipe 2 and the drug supply pipe 3. When the wastewater and drugs enter the inside of the treatment kettle 1, they will first fall on the surface of the filter plate 10 under the action of gravity, so as to be initially mixed. The drugs and wastewater can be quickly integrated, avoiding the need to fall into the inside of the treatment kettle 1 for remixing, increasing the working time, and when the transmission rod 6 rotates, it will also drive the operation of the primary mixing mechanism. At this time, the primary mixing mechanism will drive the filter plate 10 and the stirring blade 11 to rotate. When the medicine and wastewater contact the surface of the filter plate 10, the filter plate 10 and the stirring blade 11 will continuously hit the falling medicine and wastewater under the influence of the primary mixing mechanism, thereby accelerating the mixing of the two. Finally, the mixed medicine passes through the filter plate 10 and falls into the interior of the treatment kettle 1. After being in the interior of the treatment kettle 1, the stirring rod 8 rotates to stir the mixture of the medicine and wastewater again, thereby performing secondary mixing, so as to facilitate the rapid mixing of the medicine and wastewater, greatly improving the working efficiency.

[0047] When the transmission rod 6 rotates, it drives the second spur gear 16 to rotate, and the rotation of the second spur gear 16 drives the third spur gear 17 to rotate. Since the connecting ring plate 18 is rotatably connected to the bottom end of the manifold 9 and is fixed to the third spur gear 17, when the third spur gear 17 rotates, it drives the connecting ring plate 18 to rotate synchronously, and the rotation of the connecting ring plate 18 drives the filter plate 10 and the stirring blade 11 to rotate, thereby impacting the reagent and wastewater to perform preliminary mixing treatment on them.

[0048] In the initial state, the first valve 12 and the pair of second valves 15 are in the state of sealing the waste water pipe 2 and the medicine feeding pipe 3 respectively. When the motor 14 drives the first valve 12 to flip through the connecting rod 13, the first valve 12 will open the seal of the waste water pipe 2, and when the connecting rod 13 rotates, the connecting rod 13 will pull the nylon rope 23 to make it entangled. The setting of the pair of guide wheels 24 can guide the nylon rope 23 to run in a specified direction. When the nylon rope 23 is subjected to force, it will pull the fixed plate 19 to move, and the fixed plate 19 will move. When the connecting rod 13 drives the first valve 12 to reverse and reset, the first valve 12 seals the inside of the waste water pipe 2 again, and the pulling of the nylon rope 23 by the reverse connection of the connecting rod 13 ends, the spring 22 is no longer stressed, and the elastic potential energy is released, pushing the fixing plate 19 to reset, and the fixing plate 19 resets, which drives the second valve 15 to seal the inside of the waste water pipe 3 again;

[0049] When the existing wastewater and the medicine are mixed, the mixing effect is single and they are often stirred regularly. At this time, the mixture of the medicine and the wastewater also flows in a single manner, and the effect is poor. When the embodiment of the present invention is used, the transmission rod 6 drives the stirring rod 8 to rotate to stir the mixture, and the stirring rod 8 will synchronously drive the dispersion rod 25 to Figure 6 The fourth spur gear 28 is driven to move in a circular motion with the fourth spur gear 28 as the center of the circle, and the dispersion rod 25, when in motion, drives the fourth spur gear 28 to move. During the movement of the fourth spur gear 28, since the fourth spur gear 28 is in meshing state with the inner gear ring 27, the fourth spur gear 28 will rotate. The rotation of the fourth spur gear 28 drives the three pairs of spray plates 26 to rotate through the dispersion rod 25. The direction of rotation of the spray plates 26 is opposite to that of the stirring rod 8, so that the mixture can be layered and stirred. When the mixture is subjected to the impact force generated by the layered stirring, the flow becomes more chaotic, thereby achieving a better The motor 5 has a mixing function, and when the motor 5 is operated through the forward and reverse screw rods 4, the forward and reverse screw rods 4 will also drive the lifting mechanism to operate. When the lifting mechanism drives the piston rod 31 to move downward, the piston rod 31 will drive the piston plate 30 to squeeze the internal space of the transmission rod 6. When the pressure is generated inside the transmission rod 6, it will be transmitted to the inside of the dispersion rod 25 through the stirring rod 8, and then dispersed from the inside of the dispersion rod 25 to the inside of the three pairs of spray plates 26. The spray plates 26 will blow out the air inside at this time, and the blown air will be released in the mixture of the medicine and the wastewater, further improving the stirring effect;

[0050] When the forward and reverse screw rods 4 rotate, the threads on their outer sides will drive the slider to move back and forth, and the slider is fixedly connected to the lifting plate 32. Therefore, the rotation of the forward and reverse screw rods 4 will drive the lifting plate 32 to move back and forth along a pair of second guide rods 33, and when the lifting plate 32 moves, it will drive the piston plate 30 to move back and forth up and down through the piston rod 31. When the piston plate 30 moves downward, it will compress the internal air of the transmission rod 6, and when the piston plate 30 moves upward, air can be added to the interior of the transmission rod 6 through the one-way valve 29. It should be noted that the setting of the one-way valve 29 can ensure that only air can enter the interior of the transmission rod 6 and cannot be discharged.

[0051] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wastewater treatment device for a thermal power plant, comprising a treatment kettle (1), the top and outer sides of the treatment kettle (1) are respectively provided with a wastewater pipe (2) and a medicine feeding pipe (3), the top of the treatment kettle (1) is rotatably connected with a positive and negative threaded rod (4), the top of the treatment kettle (1) is provided with a motor (5) for driving the positive and negative threaded rod (4) to rotate, a transmission rod (6) is arranged inside the treatment kettle (1), the outer sides of the transmission rod (6) and the positive and negative threaded rod (4) are both fixedly connected with a first spur gear (7), the outer side of the transmission rod (6) is fixedly connected with three groups of stirring rods (8), characterized in that: The processing device also includes: A collecting pipe (9), the collecting pipe (9) is arranged inside the treatment kettle (1) and is fixedly connected to the inner wall of the treatment kettle (1), a filter plate (10) is arranged inside the collecting pipe (9), a stirring blade (11) is fixedly connected to the top of the filter plate (10), the stirring blade (11) is located directly below the wastewater pipe (2), and a primary mixing mechanism matched with the stirring blade (11) is arranged on the outer side of the transmission rod (6), and the primary mixing mechanism is used to drive the stirring blade (11) to rotate; A first valve (12), the first valve (12) is arranged inside the wastewater pipe (2), both ends of the first valve (12) are fixedly connected with connecting rods (13), the first valve (12) passes through the wastewater pipe (2), a motor (14) for driving the connecting rod (13) to rotate is installed at the top of the treatment kettle (1), a pair of second valves (15) are slidably connected inside the medicine feeding tube (3), and a traction mechanism for pulling the second valve (15) is arranged on the outer side of the connecting rod (13).

2. The wastewater treatment device for a thermal power plant according to claim 1, characterized in that: The primary mixing mechanism comprises a second spur gear (16), a third spur gear (17) and a connecting ring plate (18); the second spur gear (16) is fixedly connected to the outer side of the transmission rod (6); the top end of the third spur gear (17) is fixedly connected to the connecting ring plate (18); the connecting ring plate (18) is rotatably connected to the bottom end of the collecting pipe (9); the inner wall of the connecting ring plate (18) is fixedly connected to the outer side of the filter plate (10); and the second spur gear (16) and the third spur gear (17) are meshed.

3. The wastewater treatment device for a thermal power plant according to claim 2, characterized in that: The traction mechanism comprises a fixed plate (19), a pair of first guide rods (20), a first baffle (21), a spring (22), a nylon rope (23) and a pair of guide wheels (24); the fixed plate (19) is respectively fixedly connected to the ends of the pair of second valves (15) that are away from each other; the pair of first guide rods (20) are both slidably connected to the inside of the fixed plate (19); the pair of first guide rods (20) are both fixedly connected to the outside of the upper medicine tube (3); the first baffle (21) is fixedly connected to the ends of the pair of first guide rods (20) that are away from the upper medicine tube (3); the spring (22) is ) are respectively sleeved on the outer side of a pair of first guide rods (20), the two ends of the spring (22) are respectively fixedly connected to the first baffle plate (21) and the fixed plate (19), the nylon rope (23) is fixedly connected to the end of the fixed plate (19) away from the medicine tube (3), the end of the nylon rope (23) away from the fixed plate (19) is fixedly connected to the outer side of the connecting rod (13), the pair of guide wheels (24) are respectively fixedly connected to the end of the first baffle plate (21) away from the spring (22) and the outer side of the processing kettle (1), and the nylon rope (23) is in contact with the outer sides of the pair of guide wheels (24).

4. The wastewater treatment device for a thermal power plant according to claim 3, characterized in that: The bottom ends of the three groups of stirring rods (8) are rotatably connected to dispersion rods (25), the outer sides of the dispersion rods (25) are fixedly connected to three pairs of spray plates (26), the bottom ends of the three pairs of spray plates (26) are provided with air outlet holes, the interiors of the transmission rod (6), the stirring rod (8) and the spray plates (26) are all connected, the inner wall of the processing kettle (1) is fixedly connected to an inner gear ring (27), the outer side of the dispersion rod (25) is fixedly connected to a fourth spur gear (28), the inner gear ring (27) and the fourth spur gear (28) are meshed, a one-way valve (29) is installed on the outer side of the transmission rod (6), the interior of the transmission rod (6) is slidably connected to a piston plate (30), the top end of the piston plate (30) is fixedly connected to a piston rod (31), and a lifting mechanism for lifting the piston plate (30) is arranged on the periphery of the positive and negative threaded rods (4).

5. The wastewater treatment device for a thermal power plant according to claim 4, characterized in that: The lifting mechanism comprises a lifting plate (32), a slider, a pair of second guide rods (33) and a second baffle (34); the slider is fixedly connected to the inside of the lifting plate (32); the slider is threadedly connected to the outer side of the positive and negative threaded rods (4); the pair of second guide rods (33) are slidably connected to the inside of the lifting plate (32); the pair of second guide rods (33) are fixedly connected to the top of the processing kettle (1); and the second baffle (34) is fixedly connected to the top of the pair of second guide rods (33).

6. The wastewater treatment device for a thermal power plant according to claim 5, characterized in that: A sealing gasket (35) is glued to the adjacent ends of a pair of the second valves (15), and the sealing gasket (35) is made of rubber.

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