Reaction device for water treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a reaction device for water treatment. Comprising a reaction tank, a main shaft is rotatably connected to the top of the reaction tank, a driving mechanism is arranged above the reaction tank and used for driving the main shaft to rotate, a sewage pipe is fixedly connected to one side of the reaction tank, and a filtering mechanism is arranged in the sewage pipe and used for filtering sewage flowing through the sewage pipe. And when the driving mechanism drives the main shaft to rotate, the driving mechanism drives the filtering mechanism to rotate synchronously, so that sand and stones filtered out by the filtering mechanism are discharged from the sewage pipe. When the arc-shaped filter screen filters out gravel in sewage, the main shaft drives the sweeping plate to rotate, the gravel accumulated on the arc-shaped filter screen is swept to the outside of the sewage pipe through the discharging port, automatic cleaning of the arc-shaped filter screen is achieved, the gravel filtering effect of the arc-shaped filter screen is guaranteed, and the service life of the arc-shaped filter screen is prolonged. Workers can conveniently and continuously inject the sewage into the reaction tank for purification.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and specifically to a reaction device for water treatment. Background Art

[0002] Sewage treatment is a very important environmental protection work, which involves people's production and life and is also related to environmental protection. In order to protect the safety of water sources, various methods are needed for sewage treatment. By adding coagulants and flocculants, the suspended solids in water are reduced, and the subsequent sewage treatment efficiency is improved.

[0003] The utility model with the authorization announcement number of CN221254347U provides a uniform dosing and mixing reaction device for sewage treatment. By setting a screening structure, the residual refractory organic matter in sewage is further removed through adsorption, realizing the function of facilitating screening of the device. By setting a mixing structure, under the action of stirring blades and stirring rods, the drugs fully react inside the tank body, realizing the function of facilitating mixing of the device.

[0004] When the above-mentioned proposed reaction device filters the sand and gravel in sewage through the screening structure in the box body, it is unable to quickly discharge the sand and gravel from the box body. After all the sewage is injected into the tank body, the fixed frame can be moved to the outside of the box body to clean the grille and the activated carbon adsorption layer. Therefore, when sewage with a large sand content is injected into the tank body through the box body, once the mesh holes of the grille are blocked by sand and gravel, resulting in a slow flow rate of sewage flowing into the box body, there will be a phenomenon of sewage overflowing from the top of the box body. At the same time, when adding flocculants to the sewage in the tank body in the above patent, the flocculants cannot be evenly put into the sewage, reducing the efficiency of the mixing structure in stirring and mixing the flocculants and sewage. In view of this, we propose a reaction device for water treatment. Summary of the Invention

[0005] The purpose of the utility model is to provide a reaction device for water treatment to solve the problems raised in the above background art.

[0006] To achieve the above purpose, one of the purposes of the utility model is to provide a reaction device for water treatment, including a reaction tank. A main shaft is rotatably connected to the top of the reaction tank, and a driving mechanism is arranged above the reaction tank. The driving mechanism is used to drive the main shaft to rotate. One side of the reaction tank is fixedly connected with a sewage pipe, and a filtering mechanism is arranged inside the sewage pipe. The filtering mechanism is used to filter the sewage flowing through the sewage pipe. When the driving mechanism drives the main shaft to rotate, the driving mechanism drives the filtering mechanism to rotate synchronously, so that the sand and gravel filtered by the filtering mechanism are discharged from the sewage pipe. A dosing mechanism is arranged on the side wall of the main shaft. When the main shaft rotates, the dosing mechanism inputs flocculants into the reaction tank.

[0007] As a further improvement of the technical solution, the filtering mechanism includes an arc-shaped filter screen fixedly connected to the inner wall of the sewage pipe. A cleaning plate is rotatably connected to a position above the arc-shaped filter screen on the inner wall of the sewage pipe. An outlet is provided on one side of the sewage pipe away from the reaction tank. When the cleaning plate rotates, the two ends of the cleaning plate alternately contact the inner arc surface of the arc-shaped filter screen, pushing the sand and gravel on the arc-shaped filter screen to move outside the sewage pipe through the outlet.

[0008] As a further improvement of the technical solution, the driving mechanism includes a motor fixedly installed on the upper surface of the reaction tank. The output shaft of the motor is coaxially and fixedly connected with an extension shaft. A worm sleeve is coaxially and fixedly connected to the outer wall of the extension shaft. A worm gear is coaxially and fixedly connected to the main shaft. The worm gear meshes with the worm sleeve.

[0009] As a further improvement of the technical solution, one end of the extension shaft away from the motor is fixedly connected with a driving bevel gear. One end of the rotating shaft of the cleaning plate penetrates through one side of the sewage pipe and is fixedly connected with a driven bevel gear. The driven bevel gear meshes with the driving bevel gear.

[0010] As a further improvement of the technical solution, a carrier plate is fixedly connected to one side of the sewage pipe away from the reaction tank. A collection box is placed on the upper surface of the carrier plate. The collection box is directly below the outlet. Both ends of the arc-shaped filter screen penetrate through the side wall of the sewage pipe and extend outwards.

[0011] As a further improvement of the technical solution, the chemical dosing mechanism includes a material leveling box fixedly connected to the outer wall of the main shaft. A plurality of top holes are annularly arranged at the top of the material leveling box. A chemical dosing hopper is fixedly connected to the top of the reaction tank. The lower end of the chemical dosing hopper is in contact with the upper surface of the material leveling box. When the main shaft drives the material leveling box to rotate, the plurality of top holes are successively communicated with the inside of the chemical dosing hopper. The bottom surface inside the material leveling box is arranged as an inclined V-shaped slope structure deviating from the center of the material leveling box. A plurality of bottom holes are linearly arranged at the lowest position of the bottom surface inside the material leveling box.

[0012] As a further improvement of the technical solution, a plurality of stirring blades are fixedly connected to the position of the outer wall of the main shaft inside the reaction tank. The stirring blades are located below the material leveling box. A drain pipe is fixedly connected to a position near the bottom on one side of the reaction tank. A control valve is installed inside the drain pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. When the arc-shaped filter screen filters out sand and gravel in the sewage, the cleaning plate is driven to rotate by the main shaft, and the sand and gravel accumulated on the arc-shaped filter screen are swept through the discharge port to the outside of the sewage pipe, realizing the automatic cleaning of the arc-shaped filter screen, ensuring the effect of the arc-shaped filter screen in filtering sand and gravel, and facilitating the continuous injection of sewage into the reaction tank by workers for purification.

[0015] 2. When the main shaft drives the stirring blades to rotate and stir and mix the sewage and the flocculant, the main shaft drives the material equalizing box to rotate, so that the flocculant powder in the medicine feeding hopper falls uniformly into the interior of the material equalizing box through the top hole, and the flocculant powder in the material equalizing box then uniformly falls into the sewage along the annular path, accelerating the mixing speed of the sewage and the flocculant powder and improving the efficiency of the flocculant in aggregating and settling suspended matters in the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is one of the overall structural schematic diagrams of the present utility model;

[0017] Figure 2 is one of the overall structural schematic diagrams of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the filtering mechanism of the present utility model;

[0019] Figure 4 is the structural schematic diagram of the cleaning plate of the present utility model;

[0020] Figure 5 is the structural schematic diagram of the medicine feeding mechanism of the present utility model;

[0021] Figure 6 is the structural schematic diagram of the material equalizing box of the present utility model;

[0022] Figure 7 is the top-sectional perspective view of the material equalizing box of the present utility model.

[0023] The meanings of each label in the figure are as follows:

[0024] 1. Reaction tank; 11. Drain pipe; 12. Medicine feeding hopper; 2. Main shaft; 21. Stirring blades;

[0025] 3. Driving mechanism; 31. Motor; 32. Extension shaft; 33. Worm sleeve; 34. Worm gear; 35. Driving bevel gear;

[0026] 4. Sewage pipe;

[0027] 5. Filtering mechanism; 51. Arc-shaped filter screen; 52. Cleaning plate; 54. Discharge port; 55. Carrier plate; 56. Collection box; 57. Driven bevel gear;

[0028] 6. Dosing mechanism; 61. Material leveling box; 611. Top hole; 612. Bottom hole. Detailed implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0030] Please refer to Figure 1 - Figure 2 As shown, one of the purposes of this embodiment is to provide a reaction device for water treatment, including a reaction tank 1. The top of the reaction tank 1 is rotatably connected to a main shaft 2. A plurality of stirring blades 21 are fixedly connected to the outer wall of the main shaft 2 at a position inside the reaction tank 1. A driving mechanism 3 is arranged above the reaction tank 1. The driving mechanism 3 is used to drive the main shaft 2 to rotate. One side of the reaction tank 1 is fixedly connected to a sewage pipe 4. The top of the reaction tank 1 is fixedly connected to a dosing hopper 12. Both the sewage pipe 4 and the dosing hopper 12 are communicated with the inside of the reaction tank 1. One side of the reaction tank 1 near the bottom is fixedly connected to a drain pipe 11. A control valve is installed inside the drain pipe 11. When adding a flocculant to the sewage for purification treatment, first drive the main shaft 2 to rotate through the driving mechanism 3, so that the main shaft 2 drives a plurality of stirring blades 21 to rotate. Then, after injecting the sewage into the inside of the reaction tank 1 through the sewage pipe 4, add the flocculant into the sewage in the reaction tank 1 through the dosing hopper 12. The rotating stirring blades 21 stir and mix the sewage and the flocculant in the reaction tank 1. When the flocculant and the sewage react fully, open the control valve to discharge the sewage in the reaction tank 1 through the drain pipe 11, improving the efficiency of subsequent sewage treatment.

[0031] To drive the main shaft 2 to rotate, the structure of the driving mechanism 3 is refined as follows. Refer to Figure 2 , the driving mechanism 3 includes a motor 31 fixedly installed on the upper surface of the reaction tank 1. The output shaft of the motor 31 is coaxially and fixedly connected to an extension shaft 32. A worm sleeve 33 is coaxially and fixedly connected to the outer wall of the extension shaft 32. A worm gear 34 is coaxially and fixedly connected to the main shaft 2. The worm gear 34 meshes with the worm sleeve 33. After the motor 31 is started, its output shaft drives the extension shaft 32 to rotate. The extension shaft 32 drives the worm sleeve 33 to rotate. Through the meshing transmission between the worm sleeve 33 and the worm gear 34, the worm gear 34 drives the main shaft 2 to rotate, so that the main shaft 2 drives the stirring blades 21 to stir and mix the sewage and the flocculant in the reaction tank 1.

[0032] To prevent a large amount of sand and gravel that is difficult to discharge through the drain pipe 11 from being mixed in the sewage in the reaction tank 1, making it difficult to clean the inside of the reaction tank 1, a filtering mechanism 5 is provided inside the sewage pipe 4. The filtering mechanism 5 is used to filter the sewage flowing through the sewage pipe 4, filter out the sand and gravel in the sewage, and make the filtered sewage enter the inside of the reaction tank 1, so as to ensure that the amount of sand and gravel in the reaction tank 1 is at a relatively low level, facilitating the cleaning of the inner wall of the reaction tank 1. The structure of the filtering mechanism 5 is refined as follows. Refer to Figure 3 and Figure 4 , the filtering mechanism 5 includes an arc-shaped filter screen 51 fixedly connected to the inner wall of the sewage pipe 4. After the sewage is injected into the inside of the sewage pipe 4, the sewage falls on the inner arc surface of the arc-shaped filter screen 51. The sewage flows into the inside of the reaction tank 1 through the mesh holes of the arc-shaped filter screen 51, and the sand and gravel in the sewage accumulate on the inner arc surface of the arc-shaped filter screen 51, thereby reducing the amount of sand and gravel entering the reaction tank 1.

[0033] However, when the amount of sand and gravel accumulated on the arc-shaped filter screen 51 is relatively large, the sand and gravel may block the mesh holes of the arc-shaped filter screen 51, causing the arc-shaped filter screen 51 to lose its filtering effect on the sewage, and the sewage cannot flow into the inside of the reaction tank 1. Therefore, it is necessary to clean the sand and gravel on the arc-shaped filter screen 51 in a timely manner. To facilitate the cleaning of the sand and gravel, a cleaning plate 52 is rotatably connected to the position above the arc-shaped filter screen 51 on the inner wall of the sewage pipe 4. An outlet 54 is opened on the side of the sewage pipe 4 away from the reaction tank 1. One end of the extension shaft 32 away from the motor 31 is fixedly connected with a driving bevel gear 35. One end of the rotating shaft of the cleaning plate 52 penetrates through one side of the sewage pipe 4 and is fixedly connected with a driven bevel gear 57. The driven bevel gear 57 meshes with the driving bevel gear 35. When the output shaft of the motor 31 drives the extension shaft 32 to rotate, the extension shaft 32 drives the driving bevel gear 35 to rotate. Through the meshing transmission of the driving bevel gear 35 and the driven bevel gear 57, the cleaning plate 52 is driven to rotate. When the cleaning plate 52 rotates, both ends of the cleaning plate 52 alternately contact the inner arc surface of the arc-shaped filter screen 51, pushing the sand and gravel on the arc-shaped filter screen 51 to move to the outside of the sewage pipe 4 through the outlet 54. A large area of through grooves are provided on the side wall of the cleaning plate 52. When the cleaning plate 52 sweeps the sand and gravel, the sewage can flow from one side of the cleaning plate 52 to the other side through the through grooves, thereby preventing the sewage from being pushed out of the sewage pipe 4 by the cleaning plate 52 through the outlet 54. A carrier plate 55 is fixedly connected to the side of the sewage pipe 4 away from the reaction tank 1. A collection box 56 is placed on the upper surface of the carrier plate 55. The collection box 56 is located directly below the outlet 54. The sand and gravel pushed out of the sewage pipe 4 by the cleaning plate 52 fall into the inside of the collection box 56, facilitating the centralized cleaning of the sand and gravel. In this way, while the stirring blades 21 stir and mix the sewage and the flocculant, the automatic cleaning of the arc-shaped filter screen 51 is realized, ensuring the filtering effect of the arc-shaped filter screen 51 on the sand and gravel, and facilitating the workers to continuously inject the sewage into the reaction tank 1 for purification treatment.

[0034] Both ends of the arc-shaped filter screen 51 penetrate through the side wall of the sewage pipe 4 and extend outward. The arc-shaped filter screen 51 is detachably installed inside the sewage pipe 4. When the device is in an idle state, the arc-shaped filter screen 51 can be removed from the inside of the sewage pipe 4 for thorough cleaning or replacement, avoiding small particle sand and gravel that cannot be swept out by the cleaning plate 52 from clogging the mesh holes of the arc-shaped filter screen 51 and reducing the filtration efficiency of the arc-shaped filter screen 51.

[0035] When adding a flocculant to the sewage in the reaction tank 1, if the flocculant can be evenly added to the sewage in the reaction tank 1, it can effectively help the flocculant to be evenly mixed with the sewage and improve the efficiency of the flocculant in settling suspended solids in the sewage. To achieve this effect, a dosing mechanism 6 is provided on the side wall of the main shaft 2. When the main shaft 2 rotates, the dosing mechanism 6 evenly adds the flocculant to the sewage inside the reaction tank 1. The following details the structure of the dosing mechanism 6. Refer to Figure 5 、 Figure 6 and Figure 7 , the dosing mechanism 6 includes a material leveling box 61 fixedly connected to the outer wall of the main shaft 2. The stirring blades 21 are located below the material leveling box 61. A plurality of top holes 611 are annularly arranged at the top of the material leveling box 61. The lower end of the dosing hopper 12 is in contact with the upper surface of the material leveling box 61. Before purifying the sewage, the dosing hopper 12 is filled with flocculant powder. When the main shaft 2 drives the material leveling box 61 to rotate, a plurality of top holes 611 are successively communicated with the inside of the dosing hopper 12. When the top hole 611 is communicated with the inside of the dosing hopper 12, the flocculant powder in the dosing hopper 12 falls into the inside of the material leveling box 61 through the top hole 611, so as to make the flocculant powder in the dosing hopper 12 fall into the inside of the material leveling box 61 at a uniform speed. The inner bottom surface of the material leveling box 61 is set as an inclined V-shaped inclined surface structure deviating from the center of the material leveling box 61. A plurality of bottom holes 612 are linearly arranged at the lowest part of the inner bottom surface of the material leveling box 61. The flocculant powder falling into the material leveling box 61 slides along the inclined surface to the lowest part and then falls into the sewage in the reaction tank 1 through the bottom holes 612. The positions of the bottom holes 612 change with the rotation of the material leveling box 61, so that the flocculant powder can fall into the sewage along an annular path evenly, accelerating the mixing speed of the sewage and the flocculant powder and improving the efficiency of the flocculant in aggregating and settling suspended solids in the sewage.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A water treatment reaction device, comprising a reaction tank (1), characterized in that: The top of the reaction tank (1) is rotatably connected to a main shaft (2). A driving mechanism (3) is arranged above the reaction tank (1). The driving mechanism (3) is used to drive the main shaft (2) to rotate. A sewage pipe (4) is fixedly connected to one side of the reaction tank (1). A filtering mechanism (5) is arranged inside the sewage pipe (4). The filtering mechanism (5) is used to filter sewage flowing through the sewage pipe (4). When the driving mechanism (3) drives the main shaft (2) to rotate, the driving mechanism (3) drives the filtering mechanism (5) to rotate synchronously, so that sand and gravel filtered by the filtering mechanism (5) are discharged from the sewage pipe (4). A dosing mechanism (6) is arranged on the side wall of the main shaft (2). When the main shaft (2) rotates, the dosing mechanism (6) injects flocculant into the reaction tank (1).

2. The water treatment reaction device according to claim 1, characterized in that: The filtering mechanism (5) comprises an arc-shaped filter screen (51) fixedly connected to the inner wall of the sewage pipe (4); a cleaning plate (52) is rotatably connected to the inner wall of the sewage pipe (4) at a position above the arc-shaped filter screen (51); a discharge port (54) is provided on a side of the sewage pipe (4) away from the reaction tank (1); when the cleaning plate (52) rotates, the two ends of the cleaning plate (52) alternately contact the inner arc surface of the arc-shaped filter screen (51), pushing the sand and gravel on the arc-shaped filter screen (51) to move to the outside of the sewage pipe (4) through the discharge port (54).

3. The water treatment reaction device according to claim 2, characterized in that: The driving mechanism (3) comprises a motor (31) fixedly mounted on the upper surface of the reaction tank (1); the output shaft of the motor (31) is coaxially fixedly connected to an extension shaft (32); the outer wall of the extension shaft (32) is coaxially fixedly connected to a worm sleeve (33); the main shaft (2) is coaxially fixedly connected to a worm wheel (34); the worm wheel (34) is meshed with the worm sleeve (33).

4. The water treatment reaction device according to claim 3, characterized in that: One end of the extension shaft (32) away from the motor (31) is fixedly connected to a driving bevel gear (35), one end of the rotating shaft of the cleaning plate (52) passes through one side of the sewage pipe (4) and is fixedly connected to a driven bevel gear (57), and the driven bevel gear (57) is meshed with the driving bevel gear (35).

5. The water treatment reaction device according to claim 2, characterized in that: A carrier plate (55) is fixedly connected to the side of the sewage pipe (4) away from the reaction tank (1), a collection box (56) is placed on the upper surface of the carrier plate (55), and the collection box (56) is located directly below the discharge port (54). Both ends of the arc-shaped filter screen (51) penetrate the side wall of the sewage pipe (4) and extend outward.

6. The water treatment reaction device according to claim 1, characterized in that: The dosing mechanism (6) comprises a dosing box (61) fixedly connected to the outer wall of the main shaft (2), a plurality of top holes (611) are provided in a circular array on the top of the dosing box (61), a dosing hopper (12) is fixedly connected to the top of the reaction tank (1), a lower end of the dosing hopper (12) is in contact with the upper surface of the dosing box (61), when the main shaft (2) drives the dosing box (61) to rotate, a plurality of top holes (611) are successively connected to the inside of the dosing hopper (12), the bottom surface of the dosing box (61) is arranged as a V-shaped inclined surface structure inclined away from the center of the dosing box (61), and a plurality of bottom holes (612) are provided in a linear array at the lowest point of the bottom surface of the dosing box (61).

7. The water treatment reaction device according to claim 5, characterized in that: A plurality of stirring blades (21) are fixedly connected to the outer wall of the main shaft (2) at a position inside the reaction tank (1), and the stirring blades (21) are located below the material distribution box (61). A drainage pipe (11) is fixedly connected to a position near the bottom of one side of the reaction tank (1), and a control valve is installed inside the drainage pipe (11).

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