Treatment agent mixing device for wastewater treatment

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a wastewater treatment treatment agent mixing device which comprises a treatment pond and a stirring device arranged in the treatment pond, a buoyancy monitoring mechanism is arranged in the treatment pond, and the buoyancy monitoring mechanism comprises a buoyancy ball, a push rod and a starting driving part. The push rod is vertically arranged inside the treatment tank, the buoyancy ball is fixedly connected to the lower portion of the push rod, the stirring device comprises a rack, a servo motor, a rotating shaft and a stirring piece, the rack is arranged above the treatment tank, the servo motor is arranged on the rack, the rotating shaft is arranged on the rack, and the stirring piece is arranged on the rotating shaft. The output end of the servo motor is coaxially and fixedly connected with the rotating shaft, the stirring piece is connected to the lower portion of the rotating shaft, the driving piece is connected with the rotating rod, and the buoyancy ball controls the starting driving piece to be matched with the rotating shaft through the push rod to control the stirring piece to move. The device has the effects of fixed-height automatic feeding and synchronous operation of feeding and stirring.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment agent mixing device for wastewater treatment. Background Art

[0002] Sewage treatment agent refers to chemical additives added during the sewage treatment process to enhance the treatment effect. In the system using inorganic coagulants and flocculants, when the amount of treated water exceeds the capacity of the clarifier or the flocs in the water do not have time to settle, adding a small amount of sewage treatment agent (such as PAM coagulant) can significantly improve the sedimentation effect and improve the COD and color index of the treated water. The mixed wastewater coagulation treatment method is a type of wastewater chemical treatment method. A method of purifying wastewater by adding coagulants to the wastewater to cause the colloidal matter in it to condense and flocculate and separate it.

[0003] The invention patent with the authorization announcement number CN108927045B discloses a treatment agent mixing device for wastewater treatment and a mixing method thereof, which relates to the field of wastewater treatment technology, and includes a base, a mixing mechanism is installed on the top of the base, and adjustment mechanisms are installed on the left and right sides of the mixing mechanism, and a collecting mechanism is placed below the base, and a moving mechanism is installed on the left and right sides of the collecting mechanism. The treatment agent mixing device for wastewater treatment and the mixing method thereof have the function of mixing water and raw materials through a stirring rod, and at the same time, the motor drives the scraper to rotate, and has the function of scraping the inner wall of the first groove through the scraper, preventing the raw material from sticking to the inner wall of the first groove, and has the advantage of being easy to use, but the device cannot achieve the effect of automatic feeding as the amount of sewage changes, and at the same time, the raw materials in the device are added at the same position, and the chemical reaction uniformity of sewage treatment is poor. Summary of the invention

[0004] The object of the present invention is to provide a treatment agent mixing device for wastewater treatment, which has the effects of automatic feeding at a fixed height and synchronous operation of feeding and stirring.

[0005] The above technical object of the present invention is achieved through the following technical solutions: A treatment agent mixing device for wastewater treatment includes a treatment tank and a stirring device arranged in the treatment tank. A buoyancy monitoring mechanism is arranged in the treatment tank. The buoyancy monitoring mechanism includes a buoyancy ball, a push rod, and a starting drive member. The push rod is vertically arranged inside the treatment tank. The buoyancy ball is fixedly connected below the push rod. The stirring device includes a frame, a servo motor, a rotating shaft, and a stirring member. The frame is arranged above the treatment tank. The servo motor is arranged on the frame. The output end of the servo motor is coaxially and fixedly connected to the rotating shaft. The stirring member is connected below the rotating shaft. The drive member is connected to the rotating rod. The buoyancy ball controls the starting drive member through the push rod to cooperate with the rotating shaft to control the movement of the stirring member.

[0006] By adopting the above technical solutions, when the water level in the treatment tank increases to a specific height, the buoyancy of the water will drive the buoyancy ball to move upward. The buoyancy ball drives the push rod to move upward. The push rod will cooperate with the rotating shaft through the starting drive member to realize the stirring of the lower stirring member, achieving the effect of automatic height-fixed control of stirring.

[0007] The further setting of the present invention is: The stirring member includes a rotation drive member, a rotating frame, stirring rods, and stirring blades. The stirring frame is rotatably connected to the frame. The stirring rods are rotatably connected below the rotating frame. A plurality of the stirring blades are radially fixedly connected to the stirring rods. The rotation drive member is connected to the frame. The rotation drive member is connected to the rotating frame. The servo motor controls the rotation of the rotating frame through the rotation drive member.

[0008] The further setting of the present invention is: The rotation drive member includes a guide ring, a main rotation gear, and a secondary rotation gear. The guide ring is fixedly connected to the frame. An internal gear ring is arranged inside the guide ring. The main rotation gear is rotatably connected to the frame. One end of the rotating frame close to the guide ring is radially provided with a connecting arm. A connecting rod is arranged at the end of the connecting arm. The secondary rotation gear is rotatably connected to the end of the connecting rod. The two sides of the secondary rotation gear are respectively meshed with the main rotation gear and the internal gear ring. The radius of the main rotation gear is larger than the radius of the secondary rotation gear.

[0009] A further setting of the present invention is that a self-rotating rod is rotatably connected inside the rotating frame. A horizontal bevel gear is arranged below the self-rotating rod, and a vertical bevel gear, a first bevel gear, and a second bevel gear are rotatably arranged below the rotating frame. The horizontal bevel gear is coaxially and fixedly connected below the self-rotating rod. The vertical bevel gear and the first bevel gear are coaxially and fixedly connected by a synchronous rod. The synchronous rod is rotatably connected to the rotating frame. The second bevel gear is coaxially and fixedly connected to the stirring rod. The horizontal bevel gear meshes with the vertical bevel gear, and the first bevel gear meshes with the second bevel gear.

[0010] A further setting of the present invention is that the starting drive member includes a reversing rod, a first drive rod, a second drive rod, and a clamping block. The reversing rod is horizontally slidably connected to the frame. The first drive rod and the second drive rod are rotatably connected to the end of the reversing rod. There are two clamping blocks. A limiting groove is axially arranged inside the two clamping blocks. A limiting strip is axially arranged on the rotating shaft. The clamping block is axially slidably connected to the limiting groove of the rotating shaft through the limiting strip. Clamping grooves are arranged on one side of the self-rotating rod and the main rotating gear close to the clamping block. A clamping tooth is arranged at the end of the clamping block. The reversing rod pushes the first drive rod and the second drive rod to drive the two clamping blocks to be respectively clamped with the clamping grooves on the self-rotating rod and the main rotating gear. A pushing ring is rotatably connected to the outside of the clamping block. The first drive rod and the second drive rod are respectively rotatably connected to the pushing rings on the two clamping blocks.

[0011] A further setting of the present invention is that a guiding opening is arranged at one end of the clamping groove close to the end face. The width of the guiding opening gradually decreases from the end face of the clamping block to the direction of connection with the clamping groove.

[0012] A further setting of the present invention is that the upper part of the push rod is an upper inclined slope surface. A lower slope surface is arranged at the end of the reversing rod close to the push rod. An activity groove is arranged on the upper slope surface. An activity block is arranged on the lower slope surface. The activity block is slidably connected to the activity groove.

[0013] By adopting the above technical solution, first, the servo motor drives the rotating shaft to rotate. In the initial state, the rotating shaft drives the clamping block to rotate, and the end of the clamping block is not engaged. When the water level reaches a certain height, the upper inclined slope surface above the push rod will fit with the lower inclined slope surface on the push rod. The upper inclined slope surface will push the lower inclined slope surface. Since the push rod is horizontally slidably connected to the frame, the push rod will move horizontally. By pushing the first drive rod and the second drive rod to expand to both sides. In the initial state, the first drive rod, the second drive rod and the push rod are in a Y shape. When the push rod is pushed, the included angle between the first drive rod and the second drive rod is larger when they expand. The first drive rod and the second drive rod will drive the two clamping blocks to move to both sides through the pushing rings, and respectively engage with the main rotating gear and the self-rotating rod to realize the transmission of kinetic energy.

[0014] When the two clamping blocks move towards both sides, the clamping teeth on the clamping blocks will be clamped with the clamping grooves on the self-rotating rod and the main rotating gear. The end of the clamping groove is provided with a guiding opening, and the cooperation between the clamping teeth and the clamping groove will be more accurate. Since the rotating shaft will drive the clamping block to rotate, the clamping block will control the self-rotating rod and the main rotating gear to rotate. When the self-rotating rod rotates, the self-rotating rod will drive the horizontal bevel gear below to rotate. The horizontal bevel gear meshes with the vertical bevel gear, and the vertical bevel gear is fixedly connected to the first bevel gear through a synchronizing rod. The first bevel gear meshes with the second bevel gear, and the stirring rod is coaxially and fixedly connected to the second bevel gear. Therefore, the second bevel gear will drive the stirring to stir. At the same time, when the main rotating gear rotates, due to the limitation of the internal gear ring inside the guiding ring, the secondary rotating gear will rotate along the internal gear ring inside the guiding ring. During the movement of the secondary rotating gear, it will drive the connecting wall to rotate through the connecting rod, thereby realizing the rotation of the entire rotating frame. When the rotating frame rotates, it will drive the stirring rod below to revolve around the rotating shaft. This method can realize that the stirring rod drives the stirring blade to rotate self while also realizing that the stirring blade revolves around the axis of the treatment tank, making the reaction between the sewage and the treatment agent more uniform and thorough.

[0015] A further setting of the present invention is that: a feeding member is further provided inside the treatment tank. The feeding member includes a feeding cylinder and a movable rod. The movable rod is coaxially and fixedly connected to the vertical bevel gear. A base is fixedly provided at the end of the movable rod, and the feeding cylinder is arranged on the base.

[0016] A further setting of the present invention is that: the feeding member further includes a feeding hopper. A rotating part is provided on the treatment tank. The rotating part is rotatably connected to the treatment tank body. The feeding hopper is fixedly connected to the outside of the rotating part. The feeding hopper is communicated with the feeding cylinder through a connecting pipe. The connecting pipe is rotatably connected to the rotating part, and the end of the connecting pipe is rotatably connected to the feeding hopper.

[0017] A further setting of the present invention is that: a guiding cylinder is provided inside the treatment tank. The guiding cylinder is fixedly connected above the treatment tank. A guiding frame is provided inside the guiding cylinder, and the push rod is vertically slidably connected inside the guiding frame.

[0018] By adopting the above technical solution, when the middle rotating rod rotates, the rotating rod will drive the lower horizontal bevel gear to rotate, and the horizontal bevel gear will drive the vertical bevel gear to rotate. A movable rod is coaxially and fixedly connected to the vertical bevel gear. Since the radius ratios of the main rotating gear and the secondary rotating gear are different, the rotating speeds of the rotating frame and the rotating rod are different. Therefore, there is a rotational speed difference between the rotating frame and the vertical bevel gear, so that the vertical bevel gear can also rotate, and further drive the movable rod to rotate. During the rotation of the movable rod, the base feeding cylinder connected to the end of the movable rod will be driven to rotate. The feeding cylinder is vertically arranged with the movable rod. At the same time, the rotating frame will drive the feeding cylinder to revolve. A connecting pipe is connected between the feeding cylinder and the feeding hopper. There is a treating agent in the feeding hopper. There is a rotating part on the treatment tank, and the rotating part is rotatably connected to the tank body of the treatment tank. The feeding hopper is connected to the rotating part. Therefore, when the feeding cylinder drives the feeding hopper to revolve, the rotating part can drive the feeding hopper to rotate synchronously. This method can realize the rotary feeding of the treating agent at different positions in the treatment tank, making the mixing of the treating agent and the sewage more uniform.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. When the water level in the treatment tank increases to a specific height, the buoyancy of the water will drive the buoyancy ball to move upward, and the buoyancy ball will drive the push rod to move upward. The push rod will cooperate with the rotating shaft through the starting driving member to realize the stirring of the lower stirring member, achieving the effect of automatically controlling the stirring at a fixed height.

[0021] 2. First, the servo motor will drive the rotating shaft to rotate. In the initial state, the rotating shaft will drive the clamping block to rotate, and the end of the clamping block is not engaged. When the water level reaches a certain height, the upper inclined slope on the push rod will fit with the lower inclined slope on the push rod. The upper inclined slope will push the lower inclined slope. Since the push rod is horizontally slidably connected to the frame, the push rod will move horizontally. By pushing the first driving rod and the second driving rod to expand on both sides. In the initial state, the first driving rod, the second driving rod and the push rod form a Y shape. When the push rod is pushed, the first driving rod and the second driving rod will expand at a larger angle. The first driving rod and the second driving rod will drive the two clamping blocks to move to both sides through the pushing ring, respectively meshing with the main rotating gear and the rotating rod to realize the transmission of kinetic energy.

[0022] 3. When the middle rotating rod rotates, it drives the horizontal bevel gear below to rotate. The horizontal bevel gear drives the vertical bevel gear to rotate. A movable rod is coaxially and fixedly connected to the vertical bevel gear. Since the radius ratios of the main rotating gear and the secondary rotating gear are different, the rotating speeds of the rotating frame and the rotating rod are different. As a result, there is a rotational speed difference between the rotating frame and the vertical bevel gear, enabling the vertical bevel gear to rotate as well. Further, it can drive the movable rod to rotate. During the rotation of the movable rod, it drives the base feeding cylinder connected to the end of the movable rod to rotate. The feeding cylinder is perpendicularly arranged with the movable rod. At the same time, the rotating frame drives the feeding cylinder to revolve. A connecting pipe is connected between the feeding cylinder and the feeding hopper. There is a treatment agent in the feeding hopper. There is a rotating part on the treatment tank, which is rotatably connected to the tank body of the treatment tank. The feeding hopper is connected to the rotating part. Therefore, when the feeding cylinder drives the feeding hopper to revolve, the rotating part can drive the feeding hopper to rotate synchronously. This method can achieve the rotational feeding of the treatment agent at different positions in the treatment tank, making the treatment agent mix more evenly with the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0026] Figure 3 It is a schematic front view structural diagram of the stirring device of the present invention.

[0027] Figure 4 It is a schematic diagram of a partial structure of the stirring device of the present invention.

[0028] Figure 5 It is a schematic diagram of a partial sectional structure of the stirring device of the present invention.

[0029] Figure 6 It is a schematic diagram of a partial structure of the starting drive member of the present invention.

[0030] Figure 7 It is a schematic diagram of the structure of the main rotating gear of the present invention.

[0031] Figure 8 It is an exploded schematic diagram of the starting drive member of the present invention.

[0032] In the figure, 1 is a treatment tank; 11 is a rotating part; 12 is a guiding cylinder; 13 is a guiding frame; 14 is a buoyancy ball; 2 is a stirring device; 21 is a frame; 22 is a servo motor; 23 is a rotating shaft; 24 is a guiding ring; 241 is an internal gear ring; 25 is a main rotating gear; 26 is a secondary rotating gear; 27 is a rotating frame; 271 is a connecting arm; 272 is a connecting rod; 28 is a stirring rod; 281 is a stirring blade; 29 is a self-rotating rod; 291 is a horizontal bevel gear; 292 is a vertical bevel gear; 293 is a bevel gear one; 294 is a bevel gear two; 295 is a synchronizing rod; 3 is a starting driving part; 30 is a push rod; 301 is an upper inclined slope surface; 302 is a movable groove; 31 is a reversing rod; 311 is a lower slope surface; 312 is a movable block; 32 is a driving rod one; 33 is a driving rod two; 34 is a clamping block; 341 is a limiting groove; 342 is a limiting strip; 35 is a clamping groove; 351 is a guiding opening; 352 is a clamping tooth; 36 is a pushing ring; 4 is a feeding part; 41 is a feeding cylinder; 42 is a movable rod; 421 is a base; 43 is a feeding hopper; 44 is a connecting pipe. Detailed implementation mode

[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment, as Figure 1 、 Figure 2 、 Figure 3 shown, a treatment agent mixing device for wastewater treatment includes a treatment tank 1 and a stirring device 2 arranged in the treatment tank 1. It is characterized in that: a buoyancy monitoring mechanism is arranged in the treatment tank 1, and the buoyancy monitoring mechanism includes a buoyancy ball 14, a push rod 30, and a starting driving part 3. The push rod 30 is vertically arranged inside the treatment tank 1, and the buoyancy ball 14 is fixedly connected below the push rod 30. The stirring device 2 includes a frame 21, a servo motor 22, a rotating shaft 23, and a stirring member. The frame 21 is arranged above the treatment tank 1, the servo motor 22 is arranged on the frame 21, the output end of the servo motor 22 is coaxially and fixedly connected to the rotating shaft 23, and the stirring member is connected below the rotating shaft 23. The driving part is connected to the rotating rod. The buoyancy ball 14 controls the starting driving part 3 to cooperate with the rotating shaft 23 to control the movement of the stirring member through the push rod 30. When the water level in the treatment tank 1 increases to a specific height, the buoyancy of the water will drive the buoyancy ball 14 to move upward, the buoyancy ball 14 drives the push rod 30 to move upward, and the push rod 30 will cooperate with the rotating shaft 23 through the starting driving part 3 to realize the stirring of the stirring member below, achieving the effect of automatically controlling the stirring at a fixed height.

[0035] As Figure 2 , Figure 3 , Figure 4 shown, the stirring member includes a rotation driving member, a rotating frame 27, stirring rods 28 and stirring blades 281. The stirring frame is rotatably connected to the machine frame 21. The stirring rods 28 are rotatably connected below the rotating frame 27. A plurality of the stirring blades 281 are radially and fixedly connected to the stirring rods 28. The rotation driving member is connected to the machine frame 21 and is connected to the rotating frame 27. The servo motor 22 controls the rotation of the rotating frame 27 through the rotation driving member.

[0036] As Figure 4 , Figure 5 shown, the rotation driving member includes a guide ring 24, a main rotation gear 25 and a sub-rotation gear 26. The guide ring 24 is fixedly connected to the machine frame 21. An internal gear ring 241 is provided inside the guide ring 24. The main rotation gear 25 is rotatably connected to the machine frame 21. One end of the rotating frame 27 close to the guide ring 24 is radially provided with a connecting arm 271. A connecting rod 272 is provided at the end of the connecting arm 271. The sub-rotation gear 26 is rotatably connected to the end of the connecting rod 272. The two sides of the sub-rotation gear 26 are respectively engaged with the main rotation gear 25 and the internal gear ring 241. The radius of the main rotation gear 25 is larger than the radius of the sub-rotation gear 26.

[0037] As Figure 5 , Figure 6 shown, a self-rotating rod 29 is rotatably connected inside the rotating frame 27. A horizontal bevel gear 291 is provided below the self-rotating rod 29. A vertical bevel gear 292, a bevel gear one 293 and a bevel gear two 294 are rotatably provided below the rotating frame 27. The horizontal bevel gear 291 is coaxially and fixedly connected below the self-rotating rod 29. The vertical bevel gear 292 and the bevel gear one 293 are coaxially and fixedly connected through a synchronizing rod 295. The synchronizing rod 295 is rotatably connected to the rotating frame 27. The bevel gear two 294 is coaxially and fixedly connected to the stirring rod 28. The horizontal bevel gear 291 is engaged with the vertical bevel gear 292. The bevel gear one 293 is engaged with the bevel gear two 294.

[0038] As Figure 5 , Figure 6 , Figure 7As shown, the starting drive member 3 includes a reversing rod 31, a first drive rod 32, a second drive rod 33, and a clamping block 34. The reversing rod 31 is horizontally slidably connected to the frame 21. The first drive rod and the second drive rod 33 are rotatably connected to the end of the reversing rod 31. There are two clamping blocks 34. An axial limiting groove 341 is provided inside the two clamping blocks 34. An axial limiting strip 342 is provided on the rotating shaft 23. The clamping block 34 is axially slidably connected to the limiting groove 341 of the rotating shaft 23 through the limiting strip 342. A clamping groove 35 is provided on one side of the self-rotating rod 29 and the main rotating gear 25 close to the clamping block 34. A clamping tooth 352 is provided at the end of the clamping block 34. The reversing rod 31 pushes the first drive rod 32 and the second drive rod 33 to drive the two clamping blocks 34 to be respectively clamped with the clamping grooves 35 on the self-rotating rod 29 and the main rotating gear 25. A pushing ring 36 is rotatably connected to the outside of the clamping block 34. The first drive rod 32 and the second drive rod 33 are respectively rotatably connected to the pushing rings 36 on the two clamping blocks 34.

[0039] As Figure 6 , Figure 7 As shown, a guiding opening 351 is provided at one end of the clamping groove 35 close to the end face. The width of the guiding opening 351 gradually decreases from the end face of the clamping block 34 to the communicating direction with the clamping groove 35.

[0040] As Figure 8 As shown, an upper inclined slope 301 is provided above the push rod 30. A lower inclined slope 311 is provided at the end of the reversing rod 31 close to the push rod 30. An activity groove 302 is provided on the upper inclined slope. An activity block 312 is provided on the lower inclined slope 311. The activity block 312 is slidably connected to the activity groove 302.

[0041] First, the servo motor 22 drives the rotating shaft 23 to rotate. In the initial state, the rotating shaft 23 drives the clamping block 34 to rotate, and the end of the clamping block 34 is not engaged. When the water level reaches a certain height, the upper inclined slope 301 above the push rod 30 will fit with the lower inclined slope on the push rod 30. The upper inclined slope 301 will push the lower inclined slope. Since the push rod 30 is horizontally slidably connected to the frame 21, the push rod 30 will move horizontally. By pushing the first drive rod 32 and the second drive rod 33 to expand on both sides. In the initial state, the first drive rod 32, the second drive rod 33 and the push rod 30 are in a Y shape. When the push rod 30 is pushed, the expansion angle of the first drive rod 32 and the second drive rod 33 is larger. The first drive rod 32 and the second drive rod 33 will drive the two clamping blocks 34 to move on both sides through the pushing ring 36, and be respectively engaged with the main rotating gear 25 and the self-rotating rod 29 to realize the transmission of kinetic energy.

[0042] When the two clamping blocks 34 move towards both sides, the clamping teeth 352 on the clamping blocks 34 will be clamped with the clamping grooves 35 on the self-rotating rod 29 and the main rotating gear 25. The end of the clamping groove 35 is provided with a guiding opening 351, and the cooperation between the clamping teeth 352 and the clamping groove 35 will be more accurate. Since the rotating shaft 23 drives the clamping block 34 to rotate, the clamping block 34 will control the self-rotating rod 29 and the main rotating gear 25 to rotate. When the self-rotating rod 29 rotates, the self-rotating rod 29 will drive the horizontal bevel gear 291 below to rotate. The horizontal bevel gear 291 meshes with the vertical bevel gear 292, and the vertical bevel gear 292 is fixedly connected with the first bevel gear 293 through a synchronizing rod 295. The first bevel gear 293 meshes with the second bevel gear 294, and the stirring rod 28 is coaxially and fixedly connected to the second bevel gear 294. Therefore, the second bevel gear 294 will drive the stirring to stir. At the same time, when the main rotating gear 25 rotates, due to the limitation of the internal gear ring 241 inside the guiding ring 24, the secondary rotating gear 26 will rotate along the internal gear ring 241 inside the guiding ring 24. During the movement of the secondary rotating gear 26, it will drive the connecting wall to rotate through the connecting rod 272, thereby realizing the rotation of the entire rotating frame 27. When the rotating frame 27 rotates, it will drive the stirring rod 28 below to revolve around the rotating shaft 23. This method can realize the self-rotation of the stirring rod 28 with the stirring blades 281, and at the same time, it can also realize the revolution of the stirring blades 281 around the axis of the treatment tank 1, making the reaction between the sewage and the treatment agent more uniform and thorough.

[0043] As Figure 1 , Figure 2 , Figure 8 shown, a feeding member 4 is further arranged in the treatment tank 1. The feeding member 4 includes a feeding cylinder 41 and a movable rod 42. The movable rod 42 is coaxially and fixedly connected with the vertical bevel gear 292. A base 421 is fixedly arranged at the end of the movable rod 42, and the feeding cylinder 41 is arranged on the base 421.

[0044] As Figure 1 , Figure 2 , Figure 8 shown, the feeding member 4 further includes a feeding hopper 43. A rotating part 11 is arranged on the treatment tank 1. The rotating part 11 is rotatably connected to the body of the treatment tank 1. The feeding hopper 43 is fixedly connected to the outside of the rotating part 11. The feeding hopper 43 is communicated with the feeding cylinder 41 through a connecting pipe 44. The connecting pipe 44 is rotatably connected to the rotating part 11, and the end of the connecting pipe 44 is rotatably connected to the feeding hopper 43.

[0045] As Figure 1 , Figure 2 , Figure 8As shown, a guiding cylinder 12 is arranged inside the treatment tank 1. The guiding cylinder 12 is fixedly connected above the treatment tank 1. A guiding frame 13 is arranged inside the guiding cylinder 12, and the push rod 30 is vertically and slidably connected inside the guiding frame 13.

[0046] When the middle self-rotating rod 29 rotates, the self-rotating rod 29 drives the lower horizontal bevel gear 291 to rotate. The horizontal bevel gear 291 drives the vertical bevel gear 292 to rotate. A movable rod 42 is coaxially and fixedly connected to the vertical bevel gear 292. Since the radius ratio of the main rotating gear 25 and the secondary rotating gear 26 is different, the rotation speeds of the rotating frame 27 and the self-rotating rod 29 are different. Therefore, there is a rotation speed difference between the rotating frame 27 and the vertical bevel gear 292, so that the vertical bevel gear 292 can also rotate, and further drive the movable rod 42 to rotate. During the rotation of the movable rod 42, it drives the base 421 at the end of the movable rod 42 and the feeding cylinder 41 to rotate. The feeding cylinder 41 is perpendicular to the movable rod 42. At the same time, the rotating frame 27 drives the feeding cylinder 41 to revolve. A connecting pipe 44 is connected between the feeding cylinder 41 and the feeding hopper 43. There is a treatment agent in the feeding hopper 43. There is a rotating part 11 on the treatment tank 1. The rotating part 11 is rotatably connected to the body of the treatment tank 1. The feeding hopper 43 is connected to the rotating part 11. Therefore, when the feeding cylinder 41 drives the feeding hopper 43 to revolve, the rotating part 11 can drive the feeding hopper 43 to rotate synchronously. This method can realize the rotary feeding of the treatment agent at different positions in the treatment tank 1, making the treatment agent mix more evenly with the sewage.

[0047] When the water level in the treatment tank 1 increases to a specific height, the buoyancy of the water drives the buoyancy ball 14 to move upward. The buoyancy ball 14 drives the push rod 30 to move upward. The push rod 30 cooperates with the driving member 3 and the rotating shaft 23 to drive the lower stirring member to stir, achieving the effect of automatically controlling the stirring at a fixed height.

Claims

1. A treatment agent mixing device for wastewater treatment, comprising a treatment tank (1) and a stirring device (2) arranged in the treatment tank (1), characterized in that: A buoyancy monitoring mechanism is arranged in the treatment tank (1). The buoyancy monitoring mechanism includes a buoyancy ball (14), a push rod (30), and a start driving member (3). The push rod (30) is vertically arranged inside the treatment tank (1). The buoyancy ball (14) is fixedly connected below the push rod (30). The stirring device (2) includes a frame (21), a servo motor (22), a rotating shaft (23), and a stirring member. The frame (21) is arranged above the treatment tank (1). The servo motor (22) is arranged on the frame (21). The output end of the servo motor (22) is coaxially and fixedly connected to the rotating shaft (23). The stirring member is connected below the rotating shaft (23). The driving member is connected to the rotating rod. The buoyancy ball (14) controls the start driving member (3) through the push rod (30) to cooperate with the rotating shaft (23) to control the movement of the stirring member.

2. The treatment agent mixing device for wastewater treatment according to claim 1, characterized in that: The stirring member includes a rotation driving member, a rotating frame (27), stirring rods (28), and stirring blades (281). The stirring frame is rotatably connected to the frame (21). The stirring rods (28) are rotatably connected below the rotating frame (27). A plurality of the stirring blades (281) are radially and fixedly connected to the stirring rods (28). The rotation driving member is connected to the frame (21). The rotation driving member is connected to the rotating frame (27). The servo motor (22) controls the rotation of the rotating frame (27) through the rotation driving member.

3. The treatment agent mixing device for wastewater treatment according to claim 2, characterized in that: The rotation driving member includes a guide ring (24), a main rotation gear (25), and a sub-rotation gear (26). The guide ring (24) is fixedly connected to the frame (21). An internal gear ring (241) is arranged inside the guide ring (24). The main rotation gear (25) is rotatably connected to the frame (21). One end of the rotating frame (27) close to the guide ring (24) is radially provided with a connecting arm (271). A connecting rod (272) is arranged at the end of the connecting arm (271). The sub-rotation gear (26) is rotatably connected to the end of the connecting rod (272). The two sides of the sub-rotation gear (26) are respectively engaged with the main rotation gear (25) and the internal gear ring (241). The radius of the main rotation gear (25) is larger than the radius of the sub-rotation gear (26).

4. A treatment agent mixing device for wastewater treatment according to claim 3, characterized in that: Inside the rotating frame (27), there is a self-rotating rod (29) rotatably connected. Below the self-rotating rod (29), there is a horizontal bevel gear (291). Below the rotating frame (27), a vertical bevel gear (292), a first bevel gear (293), and a second bevel gear (294) are rotatably arranged. The horizontal bevel gear (291) is coaxially and fixedly connected below the self-rotating rod (29). The vertical bevel gear (292) and the first bevel gear (293) are coaxially and fixedly connected by a synchronizing rod (295). The synchronizing rod (295) is rotatably connected to the rotating frame (27). The second bevel gear (294) is coaxially and fixedly connected to the stirring rod (28). The horizontal bevel gear (291) meshes with the vertical bevel gear (292), and the first bevel gear (293) meshes with the second bevel gear (294).

5. A treatment agent mixing device for wastewater treatment according to claim 4, characterized in that: The starting drive member (3) includes a reversing rod (31), a first drive rod (32), a second drive rod (33), and a clamping block (34). The reversing rod (31) is horizontally slidably connected to the frame (21). The first drive rod and the second drive rod (33) are rotatably connected to the end of the reversing rod (31). There are two clamping blocks (34). Inside the two clamping blocks (34), a limiting groove (341) is axially arranged. On the rotating shaft (23), a limiting strip (342) is axially arranged. The clamping block (34) is axially slidably connected to the limiting groove (341) of the rotating shaft (23) through the limiting strip (342). On one side of the self-rotating rod (29) and the main rotating gear (25) close to the clamping block (34), a clamping groove (35) is arranged. At the end of the clamping block (34), a clamping tooth (352) is arranged. The reversing rod (31) pushes the first drive rod (32) and the second drive rod (33) to drive the two clamping blocks (34) to be respectively clamped with the clamping grooves (35) on the self-rotating rod (29) and the main rotating gear (25). The outside of the clamping block (34) is rotatably connected with a pushing ring (36). The first drive rod (32) and the second drive rod (33) are respectively rotatably connected with the pushing rings (36) on the two clamping blocks (34).

6. The treatment agent mixing device for wastewater treatment according to claim 5, wherein: One end of the clamping groove (35) close to the end face is provided with a guiding opening (351). The width of the guiding opening (351) gradually decreases from the end face of the clamping block (34) to the connecting direction with the clamping groove (35).

7. The treatment agent mixing device for wastewater treatment according to claim 6, characterized in that: Above the push rod (30), there is an upper inclined slope surface (301). At the end of the reversing rod (31) close to the push rod (30), there is a lower slope surface (311). An activity groove (302) is arranged on the upper slope surface. An activity block (312) is arranged on the lower slope surface (311). The activity block (312) is slidably connected in the activity groove (302).

8. A treatment agent mixing device for wastewater treatment according to claim 4, characterized in that: A feeding member (4) is further arranged in the treatment tank (1). The feeding member (4) includes a feeding cylinder (41) and a movable rod (42). The movable rod (42) is coaxially and fixedly connected to the vertical bevel gear (292). A base (421) is fixedly arranged at the end of the movable rod (42). The feeding cylinder (41) is arranged on the base (421).

9. The treatment agent mixing device for wastewater treatment according to claim 8, characterized in that: The feeding member (4) further includes a feeding hopper (43). A rotating part (11) is arranged on the treatment tank (1). The rotating part (11) is rotatably connected to the body of the treatment tank (1). The feeding hopper (43) is fixedly connected to the outside of the rotating part (11). The feeding hopper (43) is communicated with the feeding cylinder (41) through a connecting pipe (44). The connecting pipe (44) is rotatably connected to the rotating part (11). The end of the connecting pipe (44) is rotatably connected to the feeding hopper (43).

10. A treatment agent mixing device for wastewater treatment according to claim 9, characterized in that: A guiding cylinder (12) is arranged inside the treatment tank (1). The guiding cylinder (12) is fixedly connected above the treatment tank (1). A guiding frame (13) is arranged inside the guiding cylinder (12). The push rod (30) is vertically and slidably connected inside the guiding frame (13).

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