Combined sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a combined sewage treatment device which comprises a filter tank, a water inlet pipe is fixedly connected to the top end of the filter tank, a first filter screen is slidably connected to the inner wall of the filter tank, a gravel layer is arranged at the lower end of the first filter screen, and a second filter screen is arranged at the lower end of the gravel layer. An opening and closing plate is connected to the outer wall of the filtering tank through a clamping assembly, a sealing strip is fixedly connected to the edge of the opening and closing plate, a connecting pipe is fixedly connected to the bottom end of the filtering tank, a stirring tank is fixedly connected to the lower end of the connecting pipe, and a motor is fixedly connected to the right side of the top end of the stirring tank. According to the utility model, the filter tank is opened by rotating the rotary clamping plate to slide out of the clamping block and rotating the opening and closing plate, so that the first filter screen and the gravel layer can be cleaned or replaced, and the filter layer is easy and convenient to clean and replace. The stirring shaft is obliquely arranged to form asymmetric flow, and the exhaust fan exhausts air and turns liquid, so that sewage and chemicals are mixed more thoroughly, and the reaction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a combined wastewater treatment device. Background Technology

[0002] With the acceleration of industrialization and urbanization, wastewater treatment has become an important issue in the field of environmental protection. Wastewater treatment equipment, as a key device for achieving water pollution control, is widely used in industrial wastewater treatment, urban sewage purification, and other fields. Among them, filtration devices and mixing devices are the core components of wastewater treatment equipment, respectively undertaking the crucial functions of impurity separation and reagent mixing.

[0003] However, existing filtration equipment typically uses a fixed filter design. While this achieves basic filtration, cleaning and replacing the filter is quite complex in practice. Existing mixing equipment usually employs a horizontal or vertical mixing shaft design, resulting in a relatively uniform liquid flow pattern during mixing and less than ideal mixing of chemicals and wastewater. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a combined wastewater treatment device. By rotating a rotating plate to slide out a locking block, and rotating an opening and closing plate to open the filter tank, the first filter screen and sand layer can be cleaned or replaced, making filter layer cleaning and replacement convenient. The inclined stirring shaft creates asymmetrical flow, and the exhaust fan draws air to agitate the liquid, ensuring more thorough mixing of wastewater and chemicals and improving reaction efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined sewage treatment device, comprising a filter tank, an inlet pipe fixedly connected to the top of the filter tank, a first filter screen slidably connected to the inner wall of the filter tank, a sand and gravel layer disposed at the lower end of the first filter screen, a second filter screen disposed at the lower end of the sand and gravel layer, an opening and closing plate connected to the outer wall of the filter tank via a snap-fit ​​assembly, a sealing strip fixedly connected to the edge of the opening and closing plate, a connecting pipe fixedly connected to the bottom of the filter tank, a stirring tank fixedly connected to the lower end of the connecting pipe, a motor fixedly connected to the top right side of the stirring tank, a stirring shaft fixedly connected to the drive end of the motor, a connecting block rotatably connected to the lower end of the stirring shaft, a solenoid valve fixedly connected to the middle of the bottom of the stirring tank, an exhaust fan fixedly connected to the right outer wall of the stirring tank, and a jet nozzle fixedly connected to the left end of the exhaust fan.

[0006] Furthermore, the locking assembly includes a hinge disposed on the outer wall of one end of the opening and closing plate, a fixing block fixedly connected to the outer wall of the other end of the opening and closing plate, a rotating locking plate rotatably connected to the outside of the fixing block, a locking block slidably connected to one end of the rotating locking plate, and the locking block fixedly connected to the outer wall of the filter tank.

[0007] Furthermore, the second filter screen is slidably connected to the inner wall of the filter tank.

[0008] Furthermore, a feed inlet is fixedly connected to the middle of the top of the mixing tank.

[0009] Furthermore, a support is fixedly connected around the bottom of the mixing tank.

[0010] Furthermore, the jet head extends into the interior of the mixing tank.

[0011] Furthermore, the left end of the hinge is fixedly connected to the outer wall of the opening and closing plate, and the right end of the hinge is fixedly connected to the outer wall of the filter tank, so that the opening and closing plate can rotate around the central axis of the hinge.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, by rotating the locking plate, one end of it slides out of the locking block. Then, the opening and closing plate can be easily rotated around the central axis of the hinge, thereby opening the filter tank. At this time, the first filter screen and sand layer can be cleaned directly, or the first filter screen can be pulled outward to slide out of the filter tank for replacement, making the cleaning and replacement of the first filter screen, sand layer, and second filter screen simple and easy.

[0014] 2. In this utility model, the stirring shaft is set at an angle, which will form an asymmetrical flow state during the stirring process. In addition, the exhaust fan draws external air into the stirring tank and sprays the air out through the jet nozzle. The resulting agitation effect on the liquid allows the sewage and the agent to be mixed more thoroughly, thereby significantly improving the reaction efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of a combined wastewater treatment device proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of the filter tank of a combined sewage treatment device proposed in this utility model;

[0017] Figure 3 This is a structural diagram of the engaging component of a combined wastewater treatment device proposed in this utility model;

[0018] Figure 4 This is a structural diagram of the sealing strip of a combined sewage treatment device proposed in this utility model;

[0019] Figure 5 This is a cross-sectional view of the mixing tank of a combined sewage treatment device proposed in this utility model.

[0020] Legend:

[0021] 1. Filter tank; 2. Inlet pipe; 3. First filter screen; 4. Sand and gravel layer; 5. Second filter screen; 6. Opening plate; 7. Hinge; 8. Locking block; 9. Fixing block; 10. Rotating locking plate; 11. Sealing strip; 12. Connecting pipe; 13. Mixing tank; 14. Feed inlet; 15. Motor; 16. Mixing shaft; 17. Connecting block; 18. Solenoid valve; 19. Exhaust fan; 20. Jet nozzle; 21. Support. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 2 - Figure 4 This utility model provides an embodiment of a combined sewage treatment device, including a filter tank 1, an inlet pipe 2 fixedly connected to the top of the filter tank 1, a first filter screen 3 slidably connected to the inner wall of the filter tank 1, a sand and gravel layer 4 provided at the lower end of the first filter screen 3, a second filter screen 5 provided at the lower end of the sand and gravel layer 4, the second filter screen 5 slidably connected to the inner wall of the filter tank 1, a hinge 7 fixedly connected to the outer wall of the filter tank 1, an opening and closing plate 6 fixedly connected to the left end of the hinge 7, allowing the opening and closing plate 6 to rotate around the central axis of the hinge 7, a fixing block 9 fixedly connected to the outer wall of the other end of the opening and closing plate 6, a rotating locking plate 10 rotatably connected to the outside of the fixing block 9, a locking block 8 slidably connected to one end of the rotating locking plate 10, the locking block 8 fixedly connected to the outer wall of the filter tank 1, a sealing strip 11 fixedly connected to the edge of the opening and closing plate 6, and a connecting pipe 12 fixedly connected to the bottom end of the filter tank 1.

[0024] Specifically, when using this device to treat wastewater, the wastewater needs to be introduced into the filter tank 1 through the inlet pipe 2. The wastewater flows sequentially through the first filter screen 3, the sand and gravel layer 4, and the second filter screen 5 within the tank. During this process, large impurities are blocked above the first filter screen 3, while fine impurities are effectively filtered by the sand and gravel layer 4. After the filtration operation is completed, cleaning and maintenance can be performed. Specifically, simply rotate the rotating plate 10 so that one end slides out of the locking block 8. Then, using the central axis of the hinge 7 as the pivot, the opening and closing plate 6 can be easily rotated to open the filter tank 1. At this time, the first filter screen 3 and the sand and gravel layer 4 can be cleaned directly, or the first filter screen 3 can be pulled outwards to slide out of the filter tank 1 for replacement. After replacing the first filter screen 3, rotate the opening and closing plate 6 again. The sealing strip 11 on the edge of the opening and closing plate 6 can tightly seal the gap between the opening and closing plate 6 and the filter tank 1, effectively preventing leakage. Next, rotate the clamping plate 10 again to engage with the inner wall of the clamping block 8, thus securing the opening and closing plate 6. Through this series of operations, the cleaning and replacement of the first filter screen 3, the sand and gravel layer 4, and the second filter screen 5 become simple and easy.

[0025] Reference Figure 1 , Figure 2 and Figure 5 A mixing tank 13 is fixedly connected to the lower end of the connecting pipe 12. A motor 15 is fixedly connected to the right side of the top of the mixing tank 13. A stirring shaft 16 is fixedly connected to the drive end of the motor 15. A connecting block 17 is rotatably connected to the lower end of the stirring shaft 16. A solenoid valve 18 is fixedly connected to the middle of the bottom of the mixing tank 13. An exhaust fan 19 is fixedly connected to the outer wall of the right side of the mixing tank 13. A jet nozzle 20 is fixedly connected to the left end of the exhaust fan 19. The jet nozzle 20 extends into the interior of the mixing tank 13. A feed inlet 14 is fixedly connected to the middle of the top of the mixing tank 13. A bracket 21 is fixedly connected to the four sides of the bottom of the mixing tank 13.

[0026] Specifically, the filtered water flows into the mixing tank 13 through the connecting pipe 12. At this time, an appropriate amount of wastewater treatment agent is added through the feed inlet 14, and the motor 15 is turned on. The drive end of the motor 15 drives the stirring shaft 16 to rotate, thoroughly mixing the wastewater and the treatment agent. Simultaneously, the exhaust fan 19 is also started, drawing outside air into the mixing tank 13 and spraying the air out through the jet nozzle 20, causing the liquid inside the tank to churn. Because the stirring shaft 16 is inclined, an asymmetrical flow state is formed during the mixing process. Combined with the churning effect of the jet nozzle 20, the wastewater and the agent can be mixed more thoroughly, thus significantly improving the reaction efficiency. After the reaction is complete, simply open the solenoid valve 18 to release the reacted liquid.

[0027] Working Principle: When using this device for wastewater treatment, wastewater is first introduced into the filter tank 1 through the inlet pipe 2. The wastewater passes through multiple layers of interception, including the first filter screen 3, the sand and gravel layer 4, and the second filter screen 5. Large impurities are effectively blocked at the top of the first filter screen 3, while fine impurities are further filtered by the sand and gravel layer 4. After filtration, the operator can easily open the opening and closing plate 6 by rotating the clamping plate 10 to detach one end from the clamping block 8, allowing for cleaning and maintenance of the first filter screen 3 and the sand and gravel layer 4. If the first filter screen 3 needs to be replaced, its edge can be pulled outward to slide it out of the filter tank 1, and then a new filter screen can be installed. After installation, by rotating the opening and closing plate 6, the sealing strip 11 on its edge will fit tightly against the surface of the filter tank 1, effectively preventing leakage. Finally, the clamping plate 10 is rotated again to securely engage with the inner wall of the clamping block 8, ensuring the stable fixation of the opening and closing plate 6. The filtered water flows into the mixing tank 13 through the connecting pipe 12. At this point, the operator can add the wastewater treatment agent through the feed inlet 14 and start the motor 15 to drive the stirring shaft 16 to rotate. The inclined design of the stirring shaft 16 causes the wastewater and agent to flow asymmetrically during the stirring process. At the same time, the exhaust fan 19 introduces external air into the mixing tank 13 and sprays it evenly through the jet nozzle 20, further enhancing the churning effect of the liquid, thereby achieving thorough mixing of wastewater and agent and significantly improving reaction efficiency. After the reaction is complete, the solenoid valve 18 can be opened to discharge the treated liquid.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined wastewater treatment device, comprising a filter tank (1), characterized in that: The filter tank (1) is fixedly connected to the top of the water inlet pipe (2), and the filter tank (1) is slidably connected to the inner wall of the filter tank (1). The lower end of the first filter screen (3) is provided with a sand and gravel layer (4), and the lower end of the sand and gravel layer (4) is provided with a second filter screen (5). The outer wall of the filter tank (1) is connected to an opening and closing plate (6) through a snap-fit ​​assembly. The edge of the opening and closing plate (6) is fixedly connected with a sealing strip (11). The bottom end of the filter tank (1) is fixedly connected to a connecting pipe (12). (12) A mixing tank (13) is fixedly connected to the lower end. A motor (15) is fixedly connected to the right side of the top of the mixing tank (13). A stirring shaft (16) is fixedly connected to the driving end of the motor (15). A connecting block (17) is rotatably connected to the lower end of the stirring shaft (16). A solenoid valve (18) is fixedly connected to the middle of the bottom end of the mixing tank (13). A blower (19) is fixedly connected to the outer wall of the right side of the mixing tank (13). A jet nozzle (20) is fixedly connected to the left end of the blower (19).

2. The combined sewage treatment device according to claim 1, characterized in that: The locking assembly includes a hinge (7) disposed on the outer wall of one end of the opening and closing plate (6), a fixing block (9) is fixedly connected to the outer wall of the other end of the opening and closing plate (6), a rotating locking plate (10) is rotatably connected to the outside of the fixing block (9), a locking block (8) is slidably connected to one end of the rotating locking plate (10), and the locking block (8) is fixedly connected to the outer wall of the filter tank (1).

3. The combined wastewater treatment device according to claim 1, characterized in that: The second filter screen (5) is slidably connected to the inner wall of the filter tank (1).

4. The combined wastewater treatment device according to claim 1, characterized in that: The mixing tank (13) has a feed inlet (14) fixedly connected to the top center.

5. A combined wastewater treatment device according to claim 1, characterized in that: The bottom of the mixing tank (13) is fixedly connected to a support (21).

6. A combined wastewater treatment device according to claim 1, characterized in that: The jet head (20) extends into the interior of the mixing tank (13).

7. A combined wastewater treatment device according to claim 2, characterized in that: The left end of the hinge (7) is fixedly connected to the outer wall of the opening and closing plate (6), and the right end of the hinge (7) is fixedly connected to the outer wall of the filter tank (1), so that the opening and closing plate (6) can rotate around the central axis of the hinge (7).

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