Filtering equipment for sewage treatment

Abstract

The utility model discloses filtering equipment for sewage treatment, which comprises a settling pond, a water inlet pipe is communicated with the inner wall of one side of the top of the settling pond, a fixed hoop is fixed on the outer wall of the end part of the water inlet pipe, which is positioned on the settling pond, through a bolt, and a buffer baffle is welded on the outer wall of the fixed hoop along the inclined direction; the inner wall of one side of the bottom of the sedimentation tank communicates with a sludge discharge pipe, an arc-shaped surrounding plate is fixed to the inner wall of the top of the sedimentation tank through screws, the inner wall of the other side of the top of the sedimentation tank communicates with an overflow pipe, and the end, away from the sedimentation tank, of the overflow pipe communicates with a filtering tank body; supporting clamping blocks which are distributed at equal intervals are welded on the inner wall of the bottom of the filtering tank body; according to the sewage treatment equipment, the arc-shaped coaming is arranged in the sedimentation tank, so that floating garbage can be blocked and intercepted, the garbage can be intercepted, gathered and discharged in cooperation with the residue blocking net plate which continuously sinks and floats and rotates, and the filtering effect of the sewage treatment equipment can be improved in cooperation with the filtering insertion net for secondary interception treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a filtering device for sewage treatment. Background Art

[0002] Sewage treatment: The process of purifying sewage to meet the water quality requirements for discharging into a certain water body or for reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering. Sewage treatment equipment can effectively treat domestic sewage, industrial wastewater, etc. in urban areas, avoiding the direct inflow of sewage and pollutants into water areas, which is of great significance for improving the ecological environment, enhancing the urban grade, and promoting economic development. Before sewage treatment, there are many impurities and particulate matters in the sewage, and the sewage needs to be filtered first. When filtering the sewage, there are still some problems in the existing sewage filtering equipment during use:

[0003] 1. The filtering effect is poor. When the existing sewage is filtered, due to a large amount of garbage and other particulate matters mixed in the sewage, the garbage interception equipment for sewage treatment is extremely prone to blockage, resulting in poor efficiency of sewage filtration. And after a large amount of garbage is mixed, the garbage interception effect becomes worse, resulting in a lot of garbage overflowing.

[0004] 2. The mud content is large. Due to a large amount of ash or other dust-containing particulate matters mixed in the existing sewage, when filtering, the dust in the sewage will continuously precipitate, resulting in a large amount of silt remaining and adhering to the inner wall of the whole sewage filtering equipment. After the sewage filtering equipment is used for a long time, the filtering effect becomes worse. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies in the prior art and propose a filtering device for sewage treatment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A filtering device for sewage treatment, including a sedimentation tank. One side inner wall of the top of the sedimentation tank is communicated with a water inlet pipe, and a fixed hoop is fixed by bolts on the outer wall of the end of the water inlet pipe located in the sedimentation tank. A buffer baffle is welded on the outer wall of the fixed hoop along the inclined direction. One side inner wall of the bottom of the sedimentation tank is communicated with a sludge discharge pipe, and an arc-shaped enclosing plate is fixed by screws on the top inner wall of the sedimentation tank. The other side inner wall of the top of the sedimentation tank is communicated with an overflow pipe, and one end of the overflow pipe far away from the sedimentation tank is communicated with a filtering tank body. Support blocks are welded on the bottom inner wall of the filtering tank body at equal distances, and a conical filter screen is clamped and fixed on the top of the support blocks. A slag discharge pipe penetrates and communicates with the bottom inner wall of the conical filter screen, and a drain pipe is communicated with one side inner wall of the bottom of the filtering tank body.

[0008] As a further scheme of the utility model: A waterproof servo cylinder is fixed on one side inner wall of the bottom of the sedimentation tank, and a waterproof servo motor is arranged on the outer wall of the top of the waterproof servo cylinder. The output shaft of the waterproof servo motor is connected with a slag blocking net plate.

[0009] As a further scheme of the utility model: The arc-shaped enclosing plate is of a quarter-circular structure, and the center of the arc-shaped enclosing plate is on the same straight line as the output shaft of the waterproof servo motor. The inner wall radius of the arc-shaped enclosing plate is adapted to the length of the slag blocking net plate.

[0010] As a further scheme of the utility model: A surrounding shell is welded on the outer wall of the end of the overflow pipe located in the sedimentation tank, and a slot is opened on the inner wall of the surrounding shell. A filtering insert net is inserted and installed on the inner wall of the slot.

[0011] As a further scheme of the utility model: A stirring paddle is arranged at the axis center of the filtering tank body, and the top of the stirring paddle is connected with a driving motor through a coupling.

[0012] As a further scheme of the utility model: A rectangular slag discharge groove is opened on one side outer wall of the top of the sedimentation tank close to the slag blocking net plate, and the water level height inside the sedimentation tank is higher than that of the water inlet pipe. The water level height inside the sedimentation tank is the same as the height of the rectangular slag discharge groove.

[0013] As a further scheme of the utility model: A guide plate is welded on one side inner wall of the bottom of the sedimentation tank along the inclined direction, and the inclination angle of the guide plate is 25° - 55°.

[0014] As a further scheme of the utility model: Both the waterproof servo motor and the waterproof servo cylinder are connected with a PLC controller through signal lines, and the PLC controller is connected with an external power supply through a wire.

[0015] Compared with the prior art, the utility model provides a filtering device for sewage treatment, which has the following beneficial effects:

[0016] 1. The sewage treatment filtering equipment of this design can effectively slow down and control the flow rate of the incoming water by setting a buffer baffle at the end of the water inlet pipe, so as to facilitate the improvement of the subsequent filtering effect, and an upward inclined guide plate is set at the bottom, so as to cooperate with the gravity of the sludge itself to accelerate the sedimentation of the sludge, and cooperate with the sludge discharge pipe to quickly treat the sludge.

[0017] 2. The sewage treatment filtration equipment of this design can intercept floating garbage by setting arc-shaped enclosures inside the sedimentation tank, and cooperate with the slag screen that continuously sinks, floats and rotates to intercept, gather and discharge the garbage, and cooperate with the filter plug net for secondary interception treatment, so as to improve the filtering effect of the sewage treatment equipment.

[0018] 3. The sewage treatment filtering equipment of this design intercepts and filters the sewage particles and enters the filter tank. It uses a driving motor to drive the stirring blades to rotate, so that the sewage can use the centrifugal force to continuously rotate and accelerate the remaining particles or sludge to gather at the bottom of the conical filter net, and then discharge it through the slag discharge pipe, thereby effectively improving the filtration treatment of sewage.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a filter device for sewage treatment proposed by the utility model;

[0021] Figure 2 This is a top view of the overall structure of a sewage treatment filtering device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a sewage treatment filtering device proposed by the utility model from a first perspective;

[0023] Figure 4 The utility model is a side view of the overall structure of a filter device for sewage treatment proposed by the utility model.

[0024] In the figure: 1. sedimentation tank; 2. water inlet pipe; 3. fixed clamp; 4. buffer baffle; 5. guide plate; 6. mud discharge pipe; 7. arc-shaped enclosure; 8. slag screen; 9. waterproof servo motor; 10. waterproof servo cylinder; 11. overflow pipe; 12. filter tank; 13. enclosure shell; 14. slot; 15. filter plug net; 16. support block; 17. conical filter net; 18. slag discharge pipe; 19. drain pipe; 20. stirring blade; 21. drive motor. DETAILED DESCRIPTION

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Embodiment 1:

[0027] A filtering device for sewage treatment. This embodiment is based on plastic products with a density greater than that of water. In order to achieve the cleaning of impurities, as Figures 1-4 shown, it includes a sedimentation tank 1. One side inner wall at the top of the sedimentation tank 1 is communicated with a water inlet pipe 2. A fixed clamp 3 is fixed by bolts on the outer wall of the end of the water inlet pipe 2 located in the sedimentation tank 1. A buffer baffle 4 is welded on the outer wall of the fixed clamp 3 along an inclined direction. One side inner wall at the bottom of the sedimentation tank 1 is communicated with a sludge discharge pipe 6. An arc-shaped enclosing plate 7 is fixed by screws on the top inner wall of the sedimentation tank 1. The other side inner wall at the top of the sedimentation tank 1 is communicated with an overflow pipe 11. One end of the overflow pipe 11 away from the sedimentation tank 1 is communicated with a filtering tank body 12. Support blocks 16 are welded on the bottom inner wall of the filtering tank body 12 at equal distances. A conical filter screen 17 is clamped and fixed on the top of the support blocks 16. A slag discharge pipe 18 penetrates and communicates with the bottom inner wall of the conical filter screen 17. A drain pipe 19 is communicated with one side inner wall at the bottom of the filtering tank body 12;

[0028] By arranging a buffer baffle 4 at the end of the water inlet pipe 2, the flow rate of the incoming water body can be effectively slowed down and controlled, thereby facilitating the improvement of the subsequent filtering effect. And a diversion plate 5 inclined upward is arranged at the bottom, so that it can cooperate with the self-gravity of the sludge to accelerate the sedimentation of the sludge, and cooperate with the sludge discharge pipe to quickly process the sludge.

[0029] A waterproof servo cylinder 10 is fixed on one side inner wall at the bottom of the sedimentation tank 1. A waterproof servo motor 9 is arranged on the outer wall of the top of the waterproof servo cylinder 10. The output shaft of the waterproof servo motor 9 is connected with a slag blocking net plate 8. The arc-shaped enclosing plate 7 is a quarter-circular structure, and the center of the arc-shaped enclosing plate 7 is on the same straight line as the output shaft of the waterproof servo motor 9. The inner wall radius of the arc-shaped enclosing plate 7 is adapted to the length of the slag blocking net plate 8;

[0030] A retaining shell 13 is welded on the outer wall of the end of the overflow pipe 11 located in the sedimentation tank 1. A slot 14 is opened on the inner wall of the retaining shell 13. A filtering insert net 15 is inserted and installed on the inner wall of the slot 14.

[0031] A stirring paddle 20 is arranged at the center of the filtering tank body 12. The top of the stirring paddle 20 is connected with a driving motor 21 through a coupling;

[0032] By arranging an arc-shaped baffle 7 inside the sedimentation tank 1, floating garbage can be intercepted and blocked. In cooperation with the continuously floating and rotating slag interception net plate 8, the garbage can be intercepted, gathered and discharged, and secondary interception treatment is carried out in cooperation with the filter insertion net 15, so as to improve the filtering effect of the sewage treatment equipment.

[0033] When this embodiment is in use, first connect the filtering device to an external power supply. After debugging is normal, start to introduce sewage into the interior of the sedimentation tank 1 through the water inlet pipe 2. Since an inclined buffer baffle 4 is arranged at the nozzle of the water inlet pipe 2, the rapidly flowing sewage can be buffered and blocked. The decelerated sewage accumulates at the bottom of the sedimentation tank 1, so that the water level of the sewage is controlled to be higher than the water inlet pipe 2 and lower than the rectangular slag discharge groove. Then the garbage mixed in the sewage will float on the inner wall of the arc-shaped baffle 7. At this time, contract the waterproof servo cylinder 10 to drive the waterproof servo motor 9 and the slag interception net plate 8 to sink. After moving to the side, lift up the slag interception net plate 8. After completion, use the waterproof servo motor 9 to drive the slag interception net plate 8 to rotate 90 degrees, so as to complete the interception and discharge of the garbage from the rectangular slag discharge port. The sludge in the sewage will interact with the obliquely upwardly arranged guide plate due to the action of gravity. Most of the sludge will precipitate at the bottom and be discharged from the sludge discharge pipe 6. The filtered sewage will pass through the filter insertion net 15 and enter the interior of the filter tank 12 from the overflow pipe 11. Since the water flow rate is slow after precipitation at the top, after the overflow water enters the interior of the filter tank 12, start the drive motor 21, use the drive motor 21 to drive the stirring paddle 20 to rotate, make the water body rotate, and precipitate the remaining garbage particles at the bottom of the conical filter net 17 by means of centrifugal force and discharge them from the slag discharge pipe 18. The filtered water body flows out from the drain pipe 19 on the side.

[0034] Embodiment 2:

[0035] A filtering device for sewage treatment, as Figures 1-4 shown, the following supplements are made on the basis of Embodiment 1 in this embodiment: A rectangular slag discharge groove is provided on the outer wall of one side of the top of the sedimentation tank 1 close to the slag interception net plate 8, and the water level height inside the sedimentation tank 1 is higher than the water inlet pipe 2. The water level height inside the sedimentation tank 1 is the same as the height of the rectangular slag discharge groove. A guide plate 5 is welded along the inclined direction on the inner wall of one side of the bottom of the sedimentation tank 1, and the inclination angle of the guide plate 5 is 25°-55°;

[0036] When this embodiment is in use, the waterproof servo motor 9 and the waterproof servo cylinder 10 are both connected to a PLC controller through signal lines, and the PLC controller is connected to an external power supply through a wire. After the sewage particulate matter is intercepted and filtered and enters the interior of the filter tank 12, the driving motor 21 drives the stirring paddle 20 to rotate, so that the sewage can be rotated by the action of centrifugal force, and the remaining particulate matter or sludge is continuously rotated and accelerated to gather at the bottom of the conical filter screen 17, and then discharged through the slag discharge pipe 18, thereby effectively improving the filtration treatment of sewage.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A filtration device for sewage treatment, comprising a sedimentation tank (1), characterized in that: The inner wall of one side of the top of the sedimentation tank (1) is connected to a water inlet pipe (2), and the outer wall of the end of the water inlet pipe (2) located at the sedimentation tank (1) is fixed with a fixing hoop (3) by bolts, and the outer wall of the fixing hoop (3) is welded with a buffer baffle (4) in an inclined direction, the inner wall of one side of the bottom of the sedimentation tank (1) is connected to a mud discharge pipe (6), and the inner wall of the top of the sedimentation tank (1) is fixed with an arc-shaped enclosure (7) by screws, and the inner wall of the other side of the top of the sedimentation tank (1) is connected to a mud discharge pipe (6). The wall is connected to an overflow pipe (11), and one end of the overflow pipe (11) away from the sedimentation tank (1) is connected to a filter tank body (12), the bottom inner wall of the filter tank body (12) is welded with support blocks (16) distributed at equal distances, and the top of the support block (16) is clamped and fixed with a conical filter screen (17), the bottom inner wall of the conical filter screen (17) is penetrated and connected to a slag discharge pipe (18), and the inner wall on one side of the bottom of the filter tank body (12) is connected to a drainage pipe (19).

2. A filtration device for sewage treatment according to claim 1, characterized in that: A waterproof servo cylinder (10) is fixed to the inner wall of one side of the bottom of the sedimentation tank (1), and a waterproof servo motor (9) is arranged on the top outer wall of the waterproof servo cylinder (10), and the output shaft of the waterproof servo motor (9) is connected to a slag screen (8).

3. A filtration device for sewage treatment according to claim 2, characterized in that: The arc-shaped enclosure (7) is a quarter-circular structure, and the center of the arc-shaped enclosure (7) and the output shaft of the waterproof servo motor (9) are located on the same straight line, and the inner wall radius of the arc-shaped enclosure (7) is compatible with the length of the slag screen (8).

4. A filtration device for sewage treatment according to claim 1, characterized in that: The outer wall of the overflow pipe (11) at the end of the sedimentation tank (1) is welded with a containment shell (13), and the inner wall of the containment shell (13) is provided with a slot (14), and the inner wall of the slot (14) is plugged with a filter mesh (15).

5. A filtration device for sewage treatment according to claim 1, characterized in that: A stirring blade (20) is arranged at the axis of the filtering tank body (12), and a driving motor (21) is connected to the top of the stirring blade (20) via a coupling.

6. A filtration device for sewage treatment according to claim 3, characterized in that: A rectangular slag discharge groove is provided on the outer wall of one side of the top of the sedimentation tank (1) close to the slag retaining mesh plate (8), and the water level inside the sedimentation tank (1) is higher than the water inlet pipe (2), and the water level inside the sedimentation tank (1) is consistent with the height of the rectangular slag discharge groove.

7. A filtration device for sewage treatment according to claim 1, characterized in that: A guide plate (5) is welded on the inner wall of one side of the bottom of the sedimentation tank (1) along an inclined direction, and the inclination angle of the guide plate (5) is 25°-55°.

8. A filtration device for sewage treatment according to claim 2, characterized in that: The waterproof servo motor (9) and the waterproof servo cylinder (10) are both connected to a PLC controller via a signal line, and the PLC controller is connected to an external power source via a wire.

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