Device and method for removing hardness from industrial wastewater

Abstract

The present invention provides a device and method for removing hardness from industrial wastewater, and relates to the technical field of removing hardness from industrial wastewater, comprising a tank body, the inner surface of the tank body is rotatably connected to a first rotating rod through a bearing, the surface of the first rotating rod is rotatably connected to a bent rod through a bearing, the surface of the bent rod is fixedly connected to a rocking plate, the surface of the rocking plate is rotatably connected to a positioning rod through a universal joint bearing, the surface of the positioning rod is slidably connected to a lifting frame, the upper surface of the bent rod is fixedly connected to a screw rod, the surface of the screw rod is threadedly connected to a threaded barrel, the lifting frame is fixedly connected to the threaded barrel, the present invention drives the rotating frame to rotate through a first gear ring, the rotating frame drives the stirring blade to rotate through a rotating rod, at this time, the internal wastewater can be stirred, and the stirring can promote sufficient contact between the industrial wastewater and the reagent, thereby accelerating the reaction rate and improving the overall treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of industrial wastewater hardness removal, and in particular to a device and method for industrial wastewater hardness removal. Background Art

[0002] Hard water refers to water containing high concentrations of calcium and magnesium ions. This type of water source not only causes blockages in domestic water equipment, but also affects the operation of equipment in industrial production processes. In wastewater treatment, the removal of calcium and magnesium ions is an important step in wastewater treatment. Conventional methods for removing hardness from wastewater include chemical precipitation, ion exchange, membrane, etc. Among them, chemical precipitation is widely used in industry because of its low cost. Chemical precipitation is to add appropriate agents to the water to react with calcium and magnesium ions to form insoluble precipitates. At the same time, ultraviolet disinfection technology is added during wastewater treatment to effectively kill Microorganisms, especially harmful microorganisms such as bacteria, viruses and algae, have a good sterilization effect. In the prior art, the wastewater and the agent are stirred and mixed, but due to the large tank, uneven mixing often occurs, and local stirring is prone to stratification. When stirring, it is easy to drive the sediment at the bottom back to the upper liquid, which is easy to affect the mixing effect of the agent and the wastewater. In addition, during the process of ultraviolet irradiation, the light angle is fixed, and blind spots are prone to occur, resulting in poor disinfection effect and affecting the efficiency of subsequent treatment. For this reason, we propose a device and method for removing hardness from industrial wastewater. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and to propose a device and method for removing hardness from industrial wastewater.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for removing hardness from industrial wastewater, comprising a tank body, the inner surface of the tank body is rotatably connected to a first rotating rod through a bearing, the surface of the first rotating rod is rotatably connected to a bent rod through a bearing, the surface of the bent rod is fixedly connected to a rocking plate, the surface of the rocking plate is rotatably connected to a positioning rod through a universal joint bearing, the surface of the positioning rod is slidably connected to a lifting frame, the upper surface of the bent rod is fixedly connected to a screw rod, the surface of the screw rod is threadedly connected to a threaded barrel, the lifting frame is fixedly connected to the threaded barrel, the surface of the lifting frame is rotatably connected to a rotating frame through a bearing, the surface of the rotating frame is rotatably connected to a rotating rod through a bearing, and the surface of the rotating rod is fixedly connected to a stirring blade.

[0005] Preferably, the outer surface of the threaded barrel is rotatably connected to a fixed frame via a bearing, the surface of the fixed frame is rotatably connected to a rotating frame via a bearing, the surface of the rotating frame is fixedly connected to two guide rods, the surfaces of the two guide rods are fixedly connected to positioning plates, the positioning plates are fixedly connected to the rotating rods, the outer surface of the threaded barrel near the bottom is fixedly connected to a support frame, and a guide groove is formed between the support frame and the lifting frame.

[0006] Preferably, the surface of the tank body is rotatably connected to a second rotating rod via a bearing, the surface of the second rotating rod is slidably connected to a mounting plate, the mounting plate is fixedly connected to the lifting frame, the lower surface of the mounting plate is rotatably connected to a first gear via a bearing, the outer surface of the rotating frame is fixedly connected to a first gear ring, and the first gear ring is meshingly connected to the first gear.

[0007] Preferably, a first mounting bracket is fixedly connected to the surface of the tank body, the upper surface of the first mounting bracket is rotatably connected to a limiting sleeve via a bearing, the inner surface of the limiting sleeve is slidably connected to a limiting plate, the limiting plate is provided with a slot, the surface of the second rotating rod is fixedly connected to a connecting plate, the connecting plate and the limiting plate are rotatably connected via a bearing, the upper surface of the first mounting bracket is rotatably connected to a second gear ring via a bearing, the upper surface of the second gear ring is fixedly connected to a fixing rod, the inner surface of the tank body is rotatably connected to a mounting rod via a bearing, the outer surface of the mounting rod is fixedly connected to a second gear and a prism, and the second gear is meshingly connected to the second gear ring.

[0008] Preferably, an arc-shaped connecting frame is fixedly connected to the outer surface of the tank body near the bottom, the arc-shaped connecting frame is slidably connected to the rocking plate, and a plurality of drainage grooves are provided on the inner surface of the arc-shaped connecting frame near the bottom.

[0009] Preferably, the upper surface of the arc-shaped connecting frame is fixedly connected to the second mounting frame, and the positioning rod is slidably connected to the first mounting frame and the second mounting frame.

[0010] Preferably, a first motor is installed on the lower surface of the tank body, and an output end of the first motor is fixedly connected to the first rotating rod.

[0011] Preferably, a second motor is installed on the upper surface of the tank body, and an output end of the second motor is fixedly connected to the second rotating rod.

[0012] Preferably, the upper surface of the tank body is connected to a water inlet pipe, the lower surface of the tank body is connected to a sewage pipe and a drain pipe, and the inner wall of the drain pipe is fixedly connected to a filter screen.

[0013] Preferably, a method for removing hardness from industrial wastewater comprises the following steps:

[0014] S1: Inject wastewater into the tank from the water inlet pipe and add coagulant for mixing.

[0015] S2: Start the second motor, drive the first gear to rotate through the second rotating rod, the first gear drives the rotating frame to rotate through the first gear ring, and the rotating frame drives the stirring blade to rotate through the rotating rod to locally mix the wastewater.

[0016] S3: Start the first motor to drive the screw to rotate, thereby driving the stirring blade to move up and down. At the same time, the rotating rod drives the stirring blade to rotate while rotating around the screw, so as to stir and mix the inside of the tank at multiple locations.

[0017] S4: The precipitate produced by mixing is discharged downward along the sewage trough, and the precipitate is collected to accelerate the settling rate of the suspended particles.

[0018] S5: Open the drain pipe to discharge the treated solution, and then open the sewage pipe to discharge the sediment.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. The present invention proposes a device and method for removing hardness from industrial wastewater, which drives a second rotating rod to rotate through a second motor. While the second rotating rod drives the first gear to rotate, the first gear can be raised and lowered along the second rotating rod. The first gear drives a rotating frame to rotate through a first gear ring, and the rotating frame drives a stirring blade to rotate through a rotating rod. At this time, the internal wastewater can be stirred. The stirring can promote sufficient contact between the industrial wastewater and the reagent, thereby accelerating the reaction rate and improving the overall treatment efficiency.

[0021] 2. The present invention proposes a device and method for removing hardness from industrial wastewater, which drives a positioning plate to move by a rotating rod, and the positioning plate drives two guide rods to move. When the guide rods move to the position of the support frame, one of the guide rods enters the interior of the guide groove along the support frame, and the other guide rod moves along the edge of the bottom of the support frame. At this time, the rotating rod can be driven to rotate once, so that the rotating rod can drive the stirring blade to rotate during the process of rotating around the screw. The rotation of the stirring blade can effectively improve the stirring efficiency and homogeneity. In the case of an uneven mixed solution, the rotation can make the fluid around the stirring blade form a rotating flow, and transport the solution to the vicinity of the stirring blade to form a high-speed flow field, thereby accelerating the rate of the mixing reaction. At the same time, the stirring blade can continuously change its angle and position during the movement to avoid the existence of dead angle areas and improve the homogeneity of the mixed material.

[0022] 3. The present invention proposes a device and method for removing hardness from industrial wastewater, which drives the top screw to rotate through a bent rod, and the screw drives the lifting frame, the fixed frame and the support frame to move up and down through a threaded tube, and the fixed frame drives two guide rods to move through a rotating frame, and the two guide rods drive the positioning plate to move, and the positioning plate drives the rotating rod to move, and the rotating rod drives the stirring blades to move up and down. At this time, the inside of the tank can be stirred at multiple locations, and the solution can be circulated in the vertical direction, and the solution can be turned up and down, so that the solutions at different positions can be fully contacted and mixed, effectively avoiding material accumulation or stratification, and ensuring the uniformity of stirring.

[0023] 4. The present invention proposes a device and method for removing hardness from industrial wastewater, wherein the second rotating rod rotates to drive the top connecting plate to rotate, and the connecting plate drives the limiting plate to rotate a certain angle, and the slot on the limiting plate moves to the position of the fixed rod, and drives the mounting rod to rotate to the position of the previous fixed rod, and the movement of the fixed rod drives the second gear ring at the bottom to rotate, and at this time, the second gear ring drives the mounting rod to rotate intermittently through the second gear, and the mounting rod drives the ultraviolet lamp to rotate through the prism. The rotation of the ultraviolet lamp can increase the contact area and time between the wastewater and the ultraviolet light, thereby improving the disinfection effect. The rotation of the ultraviolet lamp can make the microorganisms in the wastewater more evenly exposed to the ultraviolet light, ensuring that each microorganism has the opportunity to be irradiated, thereby more effectively killing bacteria and viruses.

[0024] 5. The present invention proposes a device and method for removing hardness from industrial wastewater, which drives a first rotating rod to rotate through a first motor, and the first rotating rod drives a bending rod to rotate, and the bending rod drives a shaking plate to shake. The generated sediment accumulates on the shaking plate and shakes with the shaking plate. When it shakes to the position of a sewage trough, the sediment is discharged downward along the sewage trough. At this time, the sediment can be collected, and the sedimentation rate of suspended particles can be accelerated, thereby shortening the sedimentation time and improving the sedimentation efficiency, avoiding the situation in which larger sediments re-enter the upper liquid with the water flow during stirring, causing larger particles to contact and collide with the stirring blades, causing damage to the stirring blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention provides a schematic diagram of the external structure of a device and method for removing hardness from industrial wastewater;

[0026] Figure 2 A schematic diagram of the partial structure of a tank body of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0027] Figure 3 A schematic diagram of a partial cross-sectional structure of a tank body of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0028] Figure 4A schematic diagram of a prism partial structure of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0029] Figure 5 A schematic diagram of the partial structure of a lifting frame of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0030] Figure 6 A partial cross-sectional structural schematic diagram of an arc-shaped connecting frame of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0031] Figure 7 A schematic diagram of the partial structure of a threaded barrel of a device and method for removing hardness from industrial wastewater proposed by the present invention;

[0032] Figure 8 The present invention provides a partial structural schematic diagram of a fixed frame of a device and method for removing hardness from industrial wastewater.

[0033] Legend: 1. Tank body; 2. First rotating rod; 3. Bending rod; 4. Rocking plate; 5. Positioning rod; 6. Lifting frame; 7. Screw rod; 8. Threaded barrel; 9. Rotating frame; 10. Rotating rod; 11. Stirring blade; 12. Fixed frame; 13. Rotating frame; 14. Guide rod; 15. Positioning plate; 16. Support frame; 17. Guide groove; 18. Second rotating rod; 19. Mounting plate; 20. First gear; 21. First gear ring; 22. First mounting frame; 23. Limiting sleeve; 24. Limiting plate; 25. Connecting plate; 26. Second gear ring; 27. Fixed rod; 28. Mounting rod; 29. ​​Second gear; 30. Prism; 32. Arc-shaped connecting frame; 33. Drain trough; 34. Second mounting frame; 35. First motor; 36. Second motor; 37. Water inlet pipe; 38. Drain pipe; 39. Drain pipe; 40. Filter screen. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0036] like Figure 1 - Figure 8As shown, a device for removing hardness from industrial wastewater comprises a tank body 1, the inner surface of the tank body 1 is rotatably connected to a first rotating rod 2 via a bearing, the surface of the first rotating rod 2 is rotatably connected to a bending rod 3 via a bearing, the surface of the bending rod 3 is fixedly connected to a rocking plate 4, the surface of the rocking plate 4 is rotatably connected to a positioning rod 5 via a universal joint bearing, the surface of the positioning rod 5 is slidably connected to a lifting frame 6, the upper surface of the bending rod 3 is fixedly connected to a screw rod 7, the surface of the screw rod 7 is threadedly connected to a threaded barrel 8, the lifting frame 6 is fixedly connected to the threaded barrel 8, the surface of the lifting frame 6 is rotatably connected to a rotating frame 9 via a bearing, the surface of the rotating frame 9 is rotatably connected to a rotating rod 10 via a bearing, and the surface of the rotating rod 10 is fixedly connected to a stirring blade 11.

[0037] The effect is that the first rotating rod 2 drives the curved rod 3 to rotate, the curved rod 3 drives the top screw rod 7 to rotate, the screw rod 7 drives the threaded tube 8 to move up and down, the threaded tube 8 drives the lifting frame 6, the fixed frame 12 and the supporting frame 16 to move up and down, the fixed frame 12 drives the rotating frame 13 to move, the rotating frame 13 drives the two guide rods 14 to move, the two guide rods 14 drive the positioning plate 15 to move, the positioning plate 15 drives the rotating rod 10 to move, and the rotating rod 10 drives the stirring blade 11 to move, and at this time, the inside of the tank body 1 can be stirred in multiple places.

[0038] like Figure 1 - Figure 8 As shown, the outer surface of the threaded barrel 8 is rotatably connected to a fixed frame 12 through a bearing, the surface of the fixed frame 12 is rotatably connected to a rotating frame 13 through a bearing, the surface of the rotating frame 13 is fixedly connected to two guide rods 14, the surfaces of the two guide rods 14 are fixedly connected to a positioning plate 15, the positioning plate 15 is fixedly connected to the rotating rod 10, the outer surface of the threaded barrel 8 near the bottom is fixedly connected to a support frame 16, a guide groove 17 is formed between the support frame 16 and the lifting frame 6, the surface of the tank body 1 is rotatably connected to a second rotating rod 18 through a bearing, the surface of the second rotating rod 18 is slidably connected to a mounting plate 19, the mounting plate 19 is fixedly connected to the lifting frame 6, the lower surface of the mounting plate 19 is rotatably connected to a first gear 20 through a bearing, the outer surface of the rotating frame 9 is fixedly connected to a first gear ring 21, and the first gear ring 21 is meshed with the first gear 20.

[0039] The effect is that the second rotating rod 18 drives the first gear 20 to rotate, and the second rotating rod 18 is provided with a limited straight groove. A card block is arranged inside the first gear 20, and the card block always slides in the limited groove, so that the second rotating rod 18 drives the first gear 20 to rotate while the second gear 29 can be lifted and lowered along the second rotating rod 18, the first gear 20 drives the first gear ring 21 to rotate, the first gear ring 21 drives the rotating frame 9 to rotate, the rotating frame 9 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the stirring blade 11 to rotate. At this time, the internal wastewater can be stirred, and a guide groove 17 is formed between the lifting frame 6 and the supporting frame 16. The rotating rod 10 drives the positioning plate 15 to move, and the positioning plate 15 drives the two guide rods 14 to move. When the guide rods 14 move to the position of the supporting frame 16, one of the guide rods 14 enters the inside of the guide groove 17 along the supporting frame 16, and the other guide rod 14 moves along the edge of the bottom of the supporting frame 16. At this time, the rotating rod 10 can be driven to rotate one circle, and the rotating rod 10 drives the stirring blade 11 to rotate.

[0040] like Figure 1 - Figure 8 As shown, the surface of the tank body 1 is fixedly connected to a first mounting frame 22, the upper surface of the first mounting frame 22 is rotatably connected to a limiting sleeve 23 through a bearing, the inner surface of the limiting sleeve 23 is slidably connected to a limiting plate 24, and a slot is provided on the limiting plate 24. The surface of the second rotating rod 18 is fixedly connected to a connecting plate 25, and the connecting plate 25 is rotatably connected to the limiting plate 24 through a bearing, the upper surface of the first mounting frame 22 is rotatably connected to a second gear ring 26 through a bearing, the upper surface of the second gear ring 26 is fixedly connected to a fixing rod 27, the inner surface of the tank body 1 is rotatably connected to a mounting rod 28 through a bearing, the outer surface of the mounting rod 28 is fixedly connected to a second gear 29 and a prism 30, and the second gear 29 is meshingly connected to the second gear ring 26.

[0041] The effect is that during the rotation of the second rotating rod 18, the top connecting plate 25 is driven to rotate, and the connecting plate 25 drives the limiting plate 24 to rotate a certain angle. At the same time, the limiting plate 24 slides inside the limiting sleeve 23, and the slot on the limiting plate 24 moves to the position of the fixing rod 27, and drives the mounting rod 28 to rotate to the position of the previous fixing rod 27. The movement of the fixing rod 27 drives the second gear ring 26 at the bottom to rotate, and the second gear ring 26 is meshed with the second gear 29. At this time, the second gear 29 rotates intermittently, and the second gear 29 drives the mounting rod 28 to rotate, and the mounting rod 28 drives the prism 30 to rotate. An ultraviolet lamp is arranged inside the prism 30, and drives it to rotate.

[0042] like Figure 1 - Figure 8As shown, an arc-shaped connecting frame 32 is fixedly connected to the outer surface of the tank body 1 near the bottom, and the arc-shaped connecting frame 32 is slidably connected to the rocking plate 4. A plurality of sewage grooves 33 are provided on the inner surface of the arc-shaped connecting frame 32 near the bottom. A second mounting frame 34 is fixedly connected to the upper surface of the arc-shaped connecting frame 32. The positioning rod 5 is slidably connected to the first mounting frame 22 and the second mounting frame 34. A first motor 35 is installed on the lower surface of the tank body 1, and the output end of the first motor 35 is fixedly connected to the first rotating rod 2. A second motor 36 is installed on the upper surface of the tank body 1, and the output end of the second motor 36 is fixedly connected to the second rotating rod 18. A water inlet pipe 37 is provided on the upper surface of the tank body 1, and a sewage pipe 38 and a drain pipe 39 are provided on the lower surface of the tank body 1. A filter screen 40 is fixedly connected to the inner wall of the drain pipe 39.

[0043] The effect is that waste water is injected into the tank body 1 from the water inlet pipe 37, and a coagulant is added to produce precipitation, the first motor 35 is started, and the first motor 35 drives the first rotating rod 2 to rotate. When draining, the drain pipe 39 is opened first to discharge the solution and filter it through the filter net 40. After the solution is discharged, the sewage pipe 38 is opened to discharge the precipitation.

[0044] like Figure 1-8 As shown, a method for removing hardness from industrial wastewater comprises the following steps:

[0045] S1: Inject wastewater from the water inlet pipe 37 into the tank 1, and add a coagulant to mix.

[0046] S2: Start the second motor 36, drive the first gear 20 to rotate through the second rotating rod 18, the first gear 20 drives the rotating frame 9 to rotate through the first gear ring 21, and the rotating frame 9 drives the stirring blade 11 to rotate through the rotating rod 10 to locally mix the wastewater.

[0047] S3: Start the first motor 35 to drive the screw 7 to rotate, thereby driving the stirring blade 11 to move up and down. At the same time, the rotating rod 10 drives the stirring blade 11 to rotate while rotating around the screw 7, so as to stir and mix the inside of the tank body 1 at multiple locations.

[0048] S4: The precipitate generated by the mixing is discharged downward along the sewage trough 33, and the precipitate is collected to accelerate the settling speed of the suspended particles.

[0049] S5: Open the drain pipe 39 to discharge the treated solution, and then open the sewage pipe 38 to discharge the precipitate.

[0050] Working principle: wastewater is injected into the tank 1 from the water inlet pipe 37, and a coagulant is added to produce precipitation. The coagulant destroys the stability of colloidal particles in the water, removes suspended matter, chromaticity and certain inorganic substances through coagulation and flocculation, such as calcium and magnesium ions to react to form insoluble precipitates, thereby reducing the hardness of the water. The first motor 35 is started, and the first motor 35 drives the first rotating rod 2 to rotate, and the first rotating rod 2 drives the bending rod 3 to rotate, and the bending rod 3 drives the shaking plate 4 to shake. The generated precipitation accumulates on the shaking plate 4 and shakes with the shaking plate 4. When it shakes to the position of the sewage trough 33, the precipitation is discharged downward along the sewage trough 33. The second motor 36 drives the second rotating rod 18 to rotate, and the second rotating rod 18 drives the first gear 20 to rotate, and the second The rotating rod 18 is provided with a limited straight groove, and a block is arranged inside the first gear 20. The block always slides in the limited groove, so that the second rotating rod 18 drives the first gear 20 to rotate while the second gear 29 can be lifted and lowered along the second rotating rod 18. The first gear 20 drives the first gear ring 21 to rotate, the first gear ring 21 drives the rotating frame 9 to rotate, the rotating frame 9 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the stirring blade 11 to rotate, at this time, the internal wastewater can be stirred, and a guide groove 17 is formed between the lifting frame 6 and the supporting frame 16, the rotating rod 10 drives the positioning plate 15 to move, the positioning plate 15 drives the two guide rods 14 to move, and when the guide rod 14 moves to the position of the supporting frame 16, one of the guide rods 14 moves along the supporting frame 16. Entering the inside of the guide groove 17, the other guide rod 14 moves along the edge of the bottom of the support frame 16, and at this time, it can drive the rotating rod 10 to rotate one circle, and the rotating rod 10 drives the stirring blade 11 to rotate. At the same time, the bending rod 3 drives the top screw rod 7 to rotate, and the screw rod 7 drives the threaded cylinder 8 to move up and down, and the threaded cylinder 8 drives the lifting frame 6, the fixed frame 12 and the support frame 16 to move up and down, and the fixed frame 12 drives the rotating frame 13 to move, and the rotating frame 13 drives the two guide rods 14 to move, and the two guide rods 14 drive the positioning plate 15 to move, and the positioning plate 15 drives the rotating rod 10 to move, and the rotating rod 10 drives the stirring blade 11 to move. At this time, the inside of the tank body 1 can be stirred at multiple places. During the rotation of the second rotating rod 18, it drives the top connecting rod 7 to rotate. The connecting plate 25 rotates, and the connecting plate 25 drives the limiting plate 24 to rotate a certain angle. At the same time, the limiting plate 24 slides inside the limiting sleeve 23, and the slot on the limiting plate 24 moves to the position of the fixing rod 27, and drives the mounting rod 28 to rotate to the position of the previous fixing rod 27. The movement of the fixing rod 27 drives the second gear ring 26 at the bottom to rotate, and the second gear ring 26 is meshed with the second gear 29. At this time, the second gear 29 rotates intermittently, and the second gear 29 drives the mounting rod 28 to rotate. The mounting rod 28 drives the prism 30 to rotate, and the prism 30 drives the ultraviolet lamp to rotate. When draining water, the drain pipe 39 is opened first to discharge the solution and filter it through the filter net 40. After the solution is discharged, the sewage pipe 38 is opened to discharge the sediment.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for removing hardness from industrial wastewater, comprising a tank (1), characterized in that: The inner surface of the tank body (1) is rotatably connected to a first rotating rod (2) via a bearing, the surface of the first rotating rod (2) is rotatably connected to a bent rod (3) via a bearing, the surface of the bent rod (3) is fixedly connected to a rocking plate (4), the surface of the rocking plate (4) is rotatably connected to a positioning rod (5) via a universal joint bearing, the surface of the positioning rod (5) is slidably connected to a lifting frame (6), the upper surface of the bent rod (3) is fixedly connected to a screw rod (7), the surface of the screw rod (7) is threadedly connected to a threaded cylinder (8), the lifting frame (6) is fixedly connected to the threaded cylinder (8), the surface of the lifting frame (6) is rotatably connected to a rotating frame (9) via a bearing, the surface of the rotating frame (9) is rotatably connected to a rotating rod (10) via a bearing, and the surface of the rotating rod (10) is fixedly connected to a stirring blade (11), The outer surface of the threaded cylinder (8) is rotatably connected to a fixed frame (12) via a bearing, the surface of the fixed frame (12) is rotatably connected to a rotating frame (13) via a bearing, the surface of the rotating frame (13) is fixedly connected to two guide rods (14), the surfaces of the two guide rods (14) are fixedly connected to positioning plates (15), the positioning plates (15) are fixedly connected to the rotating rods (10), the outer surface of the threaded cylinder (8) near the bottom is fixedly connected to a support frame (16), a guide groove (17) is formed between the support frame (16) and the lifting frame (6), the outer surface of the tank body (1) near the bottom is fixedly connected to an arc-shaped connecting frame (32), the arc-shaped connecting frame (32) is slidably connected to the rocking plate (4), and the inner surface of the arc-shaped connecting frame (32) near the bottom is provided with a plurality of drainage grooves (33).

2. The device for removing hardness from industrial wastewater according to claim 1, characterized in that: The surface of the tank body (1) is rotatably connected to a second rotating rod (18) via a bearing, the surface of the second rotating rod (18) is slidably connected to a mounting plate (19), the mounting plate (19) is fixedly connected to the lifting frame (6), the lower surface of the mounting plate (19) is rotatably connected to a first gear (20) via a bearing, the outer surface of the rotating frame (9) is fixedly connected to a first gear ring (21), and the first gear ring (21) is meshingly connected to the first gear (20).

3. The device for removing hardness from industrial wastewater according to claim 2, characterized in that: A first mounting frame (22) is fixedly connected to the surface of the tank body (1); the upper surface of the first mounting frame (22) is rotatably connected to a limiting sleeve (23) via a bearing; the inner surface of the limiting sleeve (23) is slidably connected to a limiting plate (24); a slot is provided on the limiting plate (24); a connecting plate (25) is fixedly connected to the surface of the second rotating rod (18); the connecting plate (25) is rotatably connected to the limiting plate (24) via a bearing; the upper surface of the first mounting frame (22) is rotatably connected to a second gear ring (26) via a bearing; the upper surface of the second gear ring (26) is fixedly connected to a fixing rod (27); the inner surface of the tank body (1) is rotatably connected to a mounting rod (28) via a bearing; the outer surface of the mounting rod (28) is fixedly connected to a second gear (29) and a prism (30); the second gear (29) is meshingly connected to the second gear ring (26).

4. The device for removing hardness from industrial wastewater according to claim 1, characterized in that: The upper surface of the arc-shaped connecting frame (32) is fixedly connected to a second mounting frame (34), and the positioning rod (5) is slidably connected to the first mounting frame (22) and the second mounting frame (34).

5. The device for removing hardness from industrial wastewater according to claim 1, characterized in that: A first motor (35) is mounted on the lower surface of the tank body (1), and an output end of the first motor (35) is fixedly connected to the first rotating rod (2).

6. The device for removing hardness from industrial wastewater according to claim 1, characterized in that: A second motor (36) is mounted on the upper surface of the tank body (1), and an output end of the second motor (36) is fixedly connected to the second rotating rod (18).

7. The device for removing hardness from industrial wastewater according to claim 1, characterized in that: The upper surface of the tank body (1) is connected to a water inlet pipe (37), and the lower surface of the tank body (1) is connected to a sewage pipe (38) and a drainage pipe (39), and a filter screen (40) is fixedly connected to the inner wall of the drainage pipe (39).

8. A method for removing hardness from industrial wastewater, applied to the device for removing hardness from industrial wastewater as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: injecting wastewater from the water inlet pipe (37) into the tank, and adding a coagulant for mixing; S2: starting the second motor (36), driving the first gear (20) to rotate via the second rotating rod (18), the first gear (20) driving the rotating frame (9) to rotate via the first gear ring (21), the rotating frame (9) driving the stirring blade (11) to rotate via the rotating rod (10), thereby locally mixing the wastewater; S3: starting the first motor (35) to drive the screw (7) to rotate, thereby driving the stirring blade (11) to move up and down, and at the same time, the rotating rod (10) drives the stirring blade (11) to rotate on itself while rotating around the screw (7), so as to stir and mix the contents at multiple locations inside the tank body; S4: the precipitate generated by the mixing is discharged downward along the sewage trough (33), the precipitate is collected, and the settling speed of the suspended particles is accelerated; S5: Open the drain pipe (39) to discharge the treated solution, and then open the sewage pipe (38) to discharge the precipitate.

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