Tail water dephosphorization equipment for sewage treatment plant

Abstract

The utility model discloses tail water dephosphorization equipment for a sewage treatment plant, which relates to the field of sewage treatment and comprises a water collecting tank, a water inlet pipe fixedly connected to the top of the water collecting tank, a filter cone fixedly connected to a water inlet of the water collecting tank, supporting frames fixedly connected to two sides of the inner wall of the water collecting tank, and sliders slidably connected into the two supporting frames. The outer surface of the water collecting tank is fixedly connected with a drainage pipe, the drainage pipe is provided with a valve, the water collecting tank is internally provided with an output assembly, the water collecting tank is provided with a material changing assembly, and a servo motor is started to drive an eccentric rod to stir water in the water collecting tank; the filter materials move irregularly, and the contact area between each filter material and the sewage tail water is increased, so that the filter materials can better adsorb phosphorus in the sewage tail water.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a tail water phosphorus removal device for a sewage treatment plant. Background Art

[0002] Sewage refers to the water discharged from life and production that has been polluted to a certain extent and has lost its original function. It is mainly water used in life, which contains a lot of organic matter. The tail water of the sewage treatment plant contains a large amount of orthophosphate, polyphosphate and organic phosphorus, and phosphorus removal equipment is needed to remove the phosphorus in the tail water;

[0003] Phosphorus removal equipment usually adsorbs phosphorus in tail water through filter media. However, in the process of phosphorus adsorption by filter media, the filter media are usually piled together and do not flow, resulting in less contact area between the filter media and the tail water, which cannot be fully contacted, resulting in inadequate adsorption. In addition, after a long period of adsorption, the adsorption efficiency of the filter media on phosphorus will decrease, making it difficult for the filter media to fully adsorb the phosphorus in the tail water.

[0004] In order to solve the above problems, a sewage treatment plant tail water phosphorus removal equipment is proposed. Utility Model Content

[0005] In order to solve the above technical problems, a sewage treatment plant tail water phosphorus removal equipment is provided. This technical solution solves the problems raised in the above background technology.

[0006] In order to achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0007] The utility model provides a tail water phosphorus removal device for a sewage treatment plant, comprising a water collecting box, a water inlet pipe is fixedly connected to the top of the water collecting box, support frames are fixedly connected to both sides of the inner wall of the water collecting box, sliders are slidably connected in the two support frames, an adsorption bucket is fixedly connected to the adjacent ends of the two sliders, filter material is placed in the adsorption bucket, a drain pipe is fixedly connected to the outer surface of the water collecting box, a valve is arranged on the drain pipe, and an output component is arranged in the water collecting box;

[0008] The output assembly includes a servo motor fixedly connected to the bottom of the water collecting tank, the driving end of the servo motor is fixedly connected to an eccentric rod, an output rod is arranged directly above the eccentric rod, a movable hole is opened at the position of the output rod corresponding to the eccentric rod, the eccentric rod extends into the movable hole, one end of the output rod is fixedly connected to a rotating rod, the other end of the output rod is opened to an output hole, a lever is movably connected in the output hole, the lever is slidably connected to a slider on a support frame, and the rotating rod is rotatably connected to another support frame.

[0009] Furthermore, a sliding hole is provided at the bottom of the support frame directly above the shifting rod, and the shifting rod is slidably connected to the sliding hole.

[0010] Furthermore, a material changing assembly is provided on the water collecting tank, and the material changing assembly includes a feed hopper fixedly connected to a side of the water collecting tank where a drain pipe is provided, a discharge hopper fixedly connected to a side of the water collecting tank away from the feed hopper, and material changing ports are provided on the top and bottom surfaces of the adsorption hopper. The feed hopper is provided with a feed port corresponding to the material changing port on the top surface of the adsorption hopper, and the discharge hopper is provided with a discharge port corresponding to the material changing port on the bottom surface of the adsorption hopper.

[0011] Furthermore, a filter bucket is fixedly connected to the water inlet of the water collecting tank.

[0012] Furthermore, the adsorption hopper is a hollow frame, and the space inside the frame is used to place the filter material.

[0013] Furthermore, a plurality of through holes are provided on the adsorption bucket.

[0014] Furthermore, the upper end of the discharge hopper is located in the water collecting box, and the lower end thereof is located outside the water collecting box. A drainage hole is provided in the portion of the discharge hopper located in the water collecting box.

[0015] As described above, the beneficial effects of the tail water phosphorus removal equipment of a sewage treatment plant in the utility model are as follows:

[0016] By starting the servo motor to drive the eccentric rod to stir the water in the water collection tank, the moving "water" drives the filter material to move irregularly, increasing the contact area between each filter material and the tail water, so that the filter material can better absorb the phosphorus in the tail water;

[0017] When the eccentric rod stirs the water, the output rod will drive the adsorption bucket to move back and forth following the trajectory of the slider, further increasing the irregular movement of the filter material. When the feed port coincides with the material change port opened on the top surface of the adsorption bucket, the filter material in the feed hopper will enter the adsorption bucket. When the material change port opened on the bottom surface of the adsorption bucket coincides with the discharge port opened in the discharge hopper, the filter material near the discharge port will be discharged. In this way, the filter material in the adsorption bucket can be automatically replaced during the phosphorus removal process, thereby maintaining the phosphorus adsorption efficiency of the filter material within a considerable range and saving the time for replacing the filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the tail water phosphorus removal equipment of a sewage treatment plant shown in the utility model;

[0019] Figure 2 It is a partial cross-sectional schematic diagram of a water collecting tank of a tail water dephosphorization device of a sewage treatment plant shown in the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the adsorption bucket of the tail water dephosphorization equipment of the sewage treatment plant shown in the utility model;

[0021] Figure 4It is a structural schematic diagram of the output assembly of the tail water dephosphorization equipment of a sewage treatment plant shown in the utility model;

[0022] Figure 5 This is a structural schematic diagram of the material replacement component of the tail water dephosphorization equipment of a sewage treatment plant shown in the utility model.

[0023] Among them, the reference numerals in the drawings of the present utility model are: 1, water collecting box; 2, water inlet pipe; 3, filter bucket; 4, support frame; 5, sliding hole; 6, slider; 7, adsorption bucket; 8, material change port; 9, filter material; 10, drain pipe; 101, valve;

[0024] Output assembly: 121, servo motor; 122, eccentric rod; 123, output rod; 124, movable hole; 125, output hole; 126, rotating rod; 127, lever;

[0025] Material changing components: 131, feed hopper; 132, feed port; 133, discharge hopper; 134, discharge port; 135, drainage hole. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See 1~ Figure 5 As shown, a sewage treatment plant tail water dephosphorization device provided by an embodiment of the utility model will be described in detail below:

[0028] A tailwater dephosphorization device for a sewage treatment plant comprises a water collecting tank 1, a water inlet pipe 2 is fixedly connected to the top of the water collecting tank 1, the water inlet pipe 2 is communicated with the water inlet of the water collecting tank 1, a filter hopper 3 is fixedly connected to the water inlet of the water collecting tank 1, support frames 4 are fixedly connected to both sides of the inner wall of the water collecting tank 1, sliders 6 are slidably connected in the two support frames 4, and an adsorption hopper 7 is fixedly connected to the adjacent ends of the two sliders 6, and the adsorption hopper 7 is a hollow frame, and the space in the frame is used to place filter material 9. The top and bottom surfaces of the frame are provided with a plurality of small holes for facilitating the flow of tailwater, and the size of the small holes must be smaller than the size of the filter material particles to prevent the filter material from flowing out of the adsorption hopper 7. A drain pipe 10 is fixedly connected to the outer surface of the water collecting tank 1, and a valve 101 is provided on the drain pipe 10. The tailwater is discharged from the water inlet pipe 2 into the water collecting tank 1, and is finally discharged from the drain pipe 10 after being dephosphorized by the filter material in the adsorption hopper 7. An output component is arranged in the water collecting tank 1, and a material changing component is arranged on the water collecting tank 1.

[0029] The output assembly includes a servo motor 121 fixedly connected to the bottom of the water collecting tank 1, the driving end of the servo motor 121 is fixedly connected to an eccentric rod 122, an output rod 123 is arranged just above the eccentric rod 122, a movable hole 124 is provided in the middle of the output rod 123 at a position corresponding to the eccentric rod 122, a rotating rod 126 is fixedly connected to one end of the output rod 123, an output hole 125 is provided at the other end of the output rod 123, and a lever 127 is movably connected in the output hole 125. The rotating rod 126 is located just below one support frame 4, the lever 127 is located just below another support frame 4, the top end of the lever 127 is fixedly connected to the slider 6 located above it, and the rotating rod 126 is rotatably connected to the bottom of the support frame 4 located above it.

[0030] The eccentric rod 122 is movably connected to the movable hole 124 . A sliding hole 5 is provided at the bottom of the support frame 4 just above the shifting rod 127 . The shifting rod 127 is slidably connected to the sliding hole 5 .

[0031] The material changing assembly includes a feed hopper 131, which is fixedly connected to a side of the water collecting tank 1 where a drain pipe 10 is provided, and a discharge hopper 133 is fixedly connected to a side of the water collecting tank 1 away from the feed hopper 131. The feed hopper 131 is used for feeding filter material, and the discharge hopper 133 is used for discharging filter material. Among them, the upper end of the feed hopper 131 is located outside the water collecting tank 1, and the lower end thereof is located inside the water collecting tank; the upper end of the discharge hopper 133 is located inside the water collecting tank, and the lower end is located outside the water collecting tank. The portion of the discharge hopper 133 located inside the water collecting tank 1 is provided with a drainage hole 135, so that during the process of changing the filter material 9, a large amount of tail water carried by the replaced filter material 9 will penetrate into the water collecting tank 1 from the drainage hole 135, so that a large amount of tail water will not be discharged out of the equipment due to the replacement of the filter material 9, thereby affecting the environment.

[0032] Four material changing ports 8 are provided on the outer surface of the adsorption hopper 7, two of which are located on the top surface of the adsorption hopper 7 and close to the feed hopper 131, and the other two are located on the bottom surface of the adsorption hopper 7 and close to the discharge hopper 133. Two feed ports 132 are provided on the bottom surface of the feed hopper 131 corresponding to the two material changing ports 8 on the top surface of the adsorption hopper 7, and two discharge ports 134 are provided on the top surface of the discharge hopper 133 corresponding to the two material changing ports 8 on the bottom surface of the adsorption hopper 7.

[0033] The following is the entire working process and working principle of the above embodiment:

[0034] First, the servo motor 121 is started, and then the tail water is input into the water collecting tank 1 from the water inlet pipe 2. The filter bucket 3 will first filter the particles and floating objects in the tail water, and the tail water will enter the position of the adsorption bucket 7 in the water collecting tank 1 through the filter bucket 3 until the tail water submerges the adsorption bucket 7 and stops supplying water. Since the servo motor 121 is turned on in advance, the eccentric rod 122 and the output rod 123 will stir the water to move irregularly, and the moving water will drive the filter material 9 to move irregularly, so that the contact area between the filter material 9 and the tail water will increase, and the two can be fully in contact, so that the filter material 9 can better adsorb the phosphorus in the tail water. After the tail water reacts in the water collecting tank 1 for a period of time, the valve 101 on the drain pipe 10 is opened to discharge the treated tail water out of the water collecting tank 1, and prepare for the next round of tail water treatment;

[0035] When the servo motor 121 drives the eccentric rod 122 to stir the water, the eccentric rod 122 will also contact the inner wall of the movable hole 124, causing the output rod 123 to swing back and forth with the rotating rod 126 as the center. During the swinging process, the inner wall of the output hole 125 will contact the lever 127, and the lever 127 will drive the slider 6 connected to it to slide in the support frame 4, and then the adsorption bucket 7 will move back and forth following the trajectory of the slider 6, further increasing the irregular movement of the filter material 9. At the same time, when the adsorption hopper 7 moves toward the feed hopper 131, the feed port 132 on the feed hopper 131 will overlap with the material change port 8 opened on the top surface of the adsorption hopper 7, and the filter material 9 in the feed hopper 131 will enter the adsorption hopper 7. When the material change port 8 opened on the bottom surface of the adsorption hopper 7 overlaps with the discharge port 134 opened in the discharge hopper 133, the filter material 9 near the discharge port 134 will be discharged from the discharge port 134. In this way, the filter material 9 in the adsorption hopper 7 will be automatically replaced during the phosphorus removal process, so that the phosphorus adsorption efficiency of the filter material 9 is maintained within a considerable range, and the time for replacing the filter material 9 is also saved. At the same time, a large amount of water contained in the discharged filter material 9 will seep out from the drainage hole 135 into the water collecting tank 1, and a large amount of tail water will not leak out.

[0036] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewage treatment plant tail water dephosphorization device, comprising a water collecting tank (1), the top of which is fixedly connected with a water inlet pipe (2), characterized in that: Support frames (4) are fixedly connected to both sides of the inner wall of the water collecting box (1), sliders (6) are slidably connected inside the two support frames (4), adsorption buckets (7) are fixedly connected to the adjacent ends of the two sliders (6), and filter material (9) is placed inside the adsorption bucket (7), a drainage pipe (10) is fixedly connected to the outer surface of the water collecting box (1), a valve (101) is provided on the drainage pipe (10), and an output assembly is provided inside the water collecting box (1); The output assembly comprises a servo motor (121) fixedly connected to the bottom of the water collecting tank (1), the driving end of the servo motor (121) is fixedly connected to an eccentric rod (122), an output rod (123) is arranged directly above the eccentric rod (122), a movable hole (124) is opened in the output rod (123) at a position corresponding to the eccentric rod (122), the eccentric rod (122) extends into the movable hole (124), one end of the output rod (123) is fixedly connected to a rotating rod (126), the other end of the output rod (123) is opened to an output hole (125), a shifting rod (127) is movably connected in the output hole (125), the shifting rod (127) is slidably connected to a slider (6) on a support frame (4), and the rotating rod (126) is rotatably connected to another support frame (4).

2. A sewage treatment plant tail water phosphorus removal equipment according to claim 1, characterized in that: A sliding hole (5) is provided at the bottom of the support frame (4) located directly above the shifting rod (127), and the shifting rod (127) is slidably connected to the sliding hole (5).

3. A sewage treatment plant tail water phosphorus removal equipment according to claim 1, characterized in that: A material changing assembly is provided on the water collecting box (1), and the material changing assembly comprises a feed hopper (131) fixedly connected to a side of the water collecting box (1) on which a drainage pipe (10) is provided, a discharge hopper (133) fixedly connected to a side of the water collecting box (1) away from the feed hopper (131), a top surface and a bottom surface of the adsorption hopper (7) are provided with a material changing port (8), the feed hopper (131) is provided with a feed port (132) corresponding to the material changing port (8) on the top surface of the adsorption hopper (7), and the discharge hopper (133) is provided with a discharge port (134) corresponding to the material changing port (8) on the bottom surface of the adsorption hopper (7).

4. A sewage treatment plant tail water phosphorus removal equipment according to any one of claims 1 to 3, characterized in that: A filter bucket (3) is fixedly connected to the water inlet of the water collecting tank (1).

5. A sewage treatment plant tail water phosphorus removal equipment according to claim 4, characterized in that: The adsorption hopper (7) is a hollow frame, and the space inside the frame is used to place the filter material (9).

6. A sewage treatment plant tail water phosphorus removal equipment according to claim 4, characterized in that: The adsorption bucket (7) is provided with a plurality of through holes.

7. A sewage treatment plant tail water phosphorus removal equipment according to claim 4, characterized in that: The upper end of the discharge hopper (133) is located inside the water collecting box (1), and the lower end thereof is located outside the water collecting box (1). The portion of the discharge hopper (133) located inside the water collecting box (1) is provided with a drainage hole (135).

Images