A fine screen flushing device and an energy-saving wastewater treatment system

Abstract

This utility model provides a fine screen flushing device and an energy-saving sewage treatment system. The fine screen flushing device includes a fine screen component and a flushing component. The fine screen component includes a first fine screen assembly and a second fine screen assembly. The flushing component includes a first flushing assembly, a second flushing assembly, and a control valve assembly. The first flushing assembly includes a first flushing pipe, and the second flushing assembly includes a second flushing pipe. The control valve assembly includes a first solenoid valve, a second solenoid valve, and parallel pipes. By controlling the opening and closing actions of the first and second solenoid valves, the flushing water pressure of the first and second flushing pipes is adjusted, thereby increasing the flushing water pressure of a single flushing assembly. This achieves the goal of concentrating all the water pressure from the flushing pump onto one fine screen assembly, realizing the efficient operation of the fine screen flushing device and reducing the possibility of fine debris getting stuck in the screen gaps and causing damage.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, and more specifically, to a fine screen flushing device and an energy-saving sewage treatment system. Background Technology

[0002] Wastewater often contains suspended impurities, which need to be separated from the water before advanced treatment to avoid increasing the difficulty of subsequent treatments such as biological treatment and clogging pipes. It is common practice to use coarse screens to separate relatively large suspended solids before water inflow and fine screens to separate small suspended solids after water inflow.

[0003] Chinese invention patent application CN102049159A discloses a horizontal rotating fine screen machine, in which water is filtered from the outside to the inside of the rotating screen cylinder, and the trapped impurities are trapped on the outer surface of the rotating screen cylinder. The rotating screen cylinder is carried to the other side and scraped off by the scraper. Chinese utility model patent CN201574090U discloses an outward-inlet screen cylinder type fine screen, in which the screen cylinder is a stainless steel filter cylinder with an inverted trapezoidal cross section. The scraper is inclined at a certain angle and set close to the outer wall of the screen cylinder. When the screen cylinder rotates to the top of the scraper, it is scraped off by the scraper close to the surface of the screen cylinder.

[0004] However, the aforementioned fine bar screen needs to be equipped with a scraper to remove debris stuck in the screen gaps, and fine debris may still get stuck in the screen gaps and cause damage. Utility Model Content

[0005] Therefore, to address the problem that existing fine bar screens require scrapers to remove debris stuck in the screen gaps, yet fine particles may still become trapped and cause damage, this invention provides a fine bar washing device and an energy-saving wastewater treatment system, the specific technical solution of which is as follows:

[0006] On one hand, a fine screen flushing device includes a fine screen component and a flushing component; the fine screen component includes a first fine screen assembly and a second fine screen assembly; the flushing component includes a first flushing component for flushing the first fine screen assembly, a second flushing component for flushing the second fine screen assembly, and a control valve assembly, wherein the first flushing component includes a first flushing pipe, and the second flushing component includes a second flushing pipe; the control valve assembly includes a first solenoid valve disposed on the first flushing pipe, a second solenoid valve disposed on the second flushing pipe, and a parallel pipe connecting the first flushing pipe and the second flushing pipe.

[0007] The aforementioned fine screen flushing device adjusts the flushing water pressure of the first and second flushing pipes by controlling the opening and closing actions of the first and second solenoid valves, thereby increasing the flushing water pressure of a single flushing component. This concentrates all the water pressure of the flushing water pump onto one fine screen component, achieving efficient operation of the fine screen flushing device and reducing the possibility of fine debris getting stuck in the screen gaps and causing damage.

[0008] Furthermore, the first fine grid assembly includes a grid support, a grid drive unit and a grid conveying unit disposed on the grid support, wherein the grid conveying unit includes a rotating shaft assembly and a fine grid mesh surrounding the rotating shaft assembly.

[0009] Furthermore, it also includes a waste collection component, wherein the fine grid is arranged at an inclined upward position; the waste collection component includes a component located below the rising apex of the fine grid for collecting waste that falls from the fine grid.

[0010] Furthermore, the waste collection component includes a horizontally placed cylindrical shell, a guide shell disposed on the top of the cylindrical shell, a spiral conveying rod rotatably connected inside the cylindrical shell, a collection drive assembly for driving the spiral conveying rod to rotate, and a collection channel disposed at the end of the cylindrical shell.

[0011] Furthermore, the diameter of the parallel pipe is the same as the diameter of the flushing pipe.

[0012] On the other hand, a wastewater treatment system includes a wastewater treatment tank, an aeration treatment device, and a fine screen flushing device; the wastewater treatment tank has a first treatment tank cavity and a second treatment tank cavity connected in sequence; the fine screen flushing device is disposed in the first treatment tank cavity, and the aeration treatment device is disposed in the second treatment tank cavity.

[0013] Furthermore, it also includes an opening and closing component; a communication channel is provided between the first processing pool cavity and the second processing pool cavity; the opening and closing component includes an opening and closing cover hinged at the communication channel, and an opening and closing drive assembly for driving the opening and closing cover to swing.

[0014] Furthermore, the aeration treatment device includes an aeration blower and an aeration pipe disposed within the second treatment tank chamber.

[0015] Furthermore, it also includes a sludge suction device; the sludge suction device includes a mobile vehicle body disposed above the second treatment tank cavity, a sludge suction component disposed on the mobile vehicle body, and a sludge treatment component disposed outside the second treatment tank cavity; the sludge suction component includes a sludge suction pump assembly disposed on the mobile vehicle body, and a sludge inlet pipe and a sludge outlet pipe respectively connected to the sludge suction pump assembly, the sludge inlet pipe extending into the second treatment tank cavity, and the sludge outlet pipe extending out of the second treatment tank cavity and connected to the inlet of the sludge treatment component.

[0016] Furthermore, the bottom of the second treatment tank cavity is provided with an inclined surface, and the inlet of the sludge inlet pipe is adapted to the inclined position of the inclined surface. Attached Figure Description

[0017] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a top view of the structure of an embodiment of the energy-saving wastewater treatment system of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of the structure at point E in the middle;

[0020] Figure 3 This is a cross-sectional view of the structure of an energy-saving wastewater treatment system according to an embodiment of the present invention. Figure 1 ;

[0021] Figure 4 This is a cross-sectional view of the structure of an energy-saving wastewater treatment system according to an embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This is a cross-sectional view of the structure of an energy-saving wastewater treatment system according to an embodiment of the present invention. Figure 3 ;

[0023] Figure 6 This is a cross-sectional view of the structure of an energy-saving wastewater treatment system according to an embodiment of the present invention. Figure 4 .

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fine screen component; 2. Washing component; 3. Waste collection component; 4. Wastewater treatment tank; 5. Aeration treatment device; 6. Fine screen washing device; 7. Opening and closing component; 8. Sludge suction device;

[0026] 11. First fine grid assembly; 12. Second fine grid assembly;

[0027] 111. Grille support; 112. Grille drive unit; 113. Grille conveying unit; 114. Rotating shaft assembly; 115. Fine grille mesh;

[0028] 21. First flushing assembly; 22. Second flushing assembly; 23. Control valve assembly;

[0029] 211. First flushing pipe; 221. Second flushing pipe;

[0030] 231. First solenoid valve; 232. Second solenoid valve; 233. Parallel piping;

[0031] 31. Cylindrical shell; 32. Guide shell; 33. Screw conveyor; 34. Collection drive assembly; 35. Collection channel;

[0032] 401. First processing chamber; 402. Second processing chamber; 403. Connecting channel;

[0033] 52. Aeration pipes;

[0034] 71. Opening and closing the cover; 72. Opening and closing drive assembly;

[0035] 81. Mobile vehicle body; 82. Sludge suction unit; 83. Sludge treatment unit;

[0036] 821. Mud suction pump assembly; 822. Mud inlet pipe; 823. Mud outlet pipe. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0041] On the one hand, such as Figure 1 and Figure 2 , Figure 3 As shown, a fine screen rinsing device according to one embodiment of the present invention includes a fine screen component 1 and a rinsing component 2; the fine screen component 1 includes a first fine screen assembly 11 and a second fine screen assembly 12; the rinsing component 2 includes a first rinsing component 21 for rinsing the first fine screen assembly 11, a second rinsing component 22 for rinsing the second fine screen assembly 12, and a control valve assembly 23, wherein the first rinsing component 21 includes a first rinsing pipe 211, and the second rinsing component 22 includes a second rinsing pipe 221; the control valve assembly 23 includes a first solenoid valve 231 disposed on the first rinsing pipe 211, a second solenoid valve 232 disposed on the second rinsing pipe 221, and a parallel pipe 233 connecting the first rinsing pipe 211 and the second rinsing pipe 221 in parallel.

[0042] The aforementioned fine screen flushing device adjusts the flushing water pressure of the first flushing pipe 211 and the second flushing pipe 221 by controlling the opening and closing actions of the first solenoid valve 231 and the second solenoid valve 232, thereby increasing the flushing water pressure of a single flushing component. This achieves the purpose of concentrating all the water pressure of the flushing water pump onto one fine screen component, realizing the efficient operation of the fine screen flushing device and reducing the possibility of fine debris getting stuck in the screen gaps and causing damage.

[0043] In one embodiment, the first fine grid assembly 11 includes a grid support 111, a grid drive unit 112 disposed on the grid support 111, and a grid conveying unit 113. The grid conveying unit 113 includes a rotating shaft assembly 114 and a fine grid mesh 115 surrounding the rotating shaft assembly 114. Thus, the grid drive unit 112 drives the rotating shaft assembly 114 to rotate, causing the fine grid mesh 115 on the rotating shaft assembly 114 to reciprocate, thereby realizing the conveying action of the fine grid mesh 115 on the waste.

[0044] In one embodiment, a waste collection component 3 is also included, wherein the fine grid 115 is arranged at an inclined upward position; the waste collection component 3 includes a component disposed below the rising apex of the fine grid 115 for collecting waste that falls from the fine grid 115.

[0045] In one embodiment, the waste collection component 3 includes a horizontally placed cylindrical shell 31, a guide shell 32 disposed at the top of the cylindrical shell 31, a spiral conveying rod 33 rotatably connected inside the cylindrical shell 31, a collection drive assembly 34 that drives the spiral conveying rod 33 to rotate, and a collection channel 35 disposed at the end of the cylindrical shell 31. Thus, waste on the fine grid 115 falls into the guide shell 32 and enters the cylindrical shell 31. The spiral conveying rod 33 transports the waste along the cylindrical shell 31, and finally it falls from the end of the cylindrical shell 31 into the collection channel 35, thereby achieving the collection of fine debris and waste.

[0046] In one embodiment, the diameter of the parallel pipe 233 is the same as the diameter of the flushing pipe.

[0047] On the other hand, such as Figure 4 and Figure 5 , Figure 6 As shown, a wastewater treatment system according to one embodiment of this utility model includes a wastewater treatment tank 4, an aeration treatment device 5, and a fine screen flushing device 6. The wastewater treatment tank 4 has a first treatment tank cavity 401 and a second treatment tank cavity 402 connected in sequence. The fine screen flushing device 6 is disposed in the first treatment tank cavity 401, and the aeration treatment device 5 is disposed in the second treatment tank cavity 402. Thus, the fine screen flushing device 6 removes particulate impurities (such as plastic and branches) in the first treatment tank cavity 401, protecting downstream equipment and reducing the risk of blockage. The aeration treatment device 5 aerates the wastewater in the second treatment tank cavity 402 and separates inorganic materials such as sand and gravel, preventing pipe wear and reducing maintenance costs.

[0048] In one embodiment, an opening / closing component 7 is further included; a communication channel 403 is provided between the first processing chamber 401 and the second processing chamber 402; the opening / closing component 7 includes an opening / closing cover 71 hinged to the communication channel 403, and an opening / closing drive assembly 72 for driving the opening / closing cover 71 to swing. Thus, by driving the opening / closing cover 71 to swing through the opening / closing drive assembly 72, communication control between the first processing chamber 401 and the second processing chamber 402 is achieved.

[0049] In one embodiment, the aeration treatment device 5 includes an aeration blower and an aeration pipe 52 disposed within the second treatment tank cavity 402. Thus, by blowing air through the aeration blower into the aeration pipe 52 within the second treatment tank cavity 402, sufficient oxygen is ensured within the second treatment tank cavity 402.

[0050] In one embodiment, a sludge suction device 8 is further included. The sludge suction device 8 includes a mobile vehicle body 81 positioned above the second treatment tank cavity 402, a sludge suction component 82 mounted on the mobile vehicle body 81, and a sludge treatment component 83 positioned outside the second treatment tank cavity 402. The sludge suction component 82 includes a sludge suction pump assembly 821 mounted on the mobile vehicle body 81, and a sludge inlet pipe 822 and a sludge outlet pipe 823 respectively connected to the sludge suction pump assembly 821. The sludge inlet pipe 822 extends into the second treatment tank cavity 402, and the sludge outlet pipe 823 extends out of the second treatment tank cavity 402 and connects to the inlet of the sludge treatment component 83. Thus, by configuring the mobile vehicle body 81 and integrating the sludge suction pump assembly 821, sludge inlet pipe 822, and sludge outlet pipe 823 thereon, a full-width dynamic sludge suction system is achieved above the second treatment tank cavity 402 by the sludge suction component 82. The mobile vehicle 81 moves longitudinally along the pool cavity, so that the inlet of the sludge inlet pipe 822 is precisely positioned in the sludge deposition area, avoiding the blind spot problem of the traditional fixed sludge suction port and improving the sludge removal rate.

[0051] In one embodiment, the bottom of the second treatment tank cavity 402 is provided with an inclined surface, and the inlet of the sludge inlet pipe 822 is adapted to the inclined position of the inclined surface. In this way, by designing the bottom of the second treatment tank cavity 402 as an inclined surface and adapting the inlet angle of the sludge inlet pipe 822 to the inclined surface, a dual mechanism of sludge gravity flow guidance and negative pressure enhanced extraction is formed; the inclined surface structure promotes the sludge to naturally converge towards the inlet of the sludge inlet pipe 822 under the action of gravity, avoiding local siltation in the flat-bottomed tank cavity, reducing the frequency of manual cleaning, and avoiding blockage.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fine grid flushing device, characterized by, It includes a fine screen component (1) and a flushing component (2); The fine grid component (1) includes a first fine grid assembly (11) and a second fine grid assembly (12); The flushing component (2) includes a first flushing component (21) for flushing the first fine screen assembly (11), a second flushing component (22) for flushing the second fine screen assembly (12), and a control valve assembly (23). The first flushing component (21) includes a first flushing pipe (211), and the second flushing component (22) includes a second flushing pipe (221). The control valve assembly (23) includes a first solenoid valve (231) disposed on the first flushing pipe (211), a second solenoid valve (232) disposed on the second flushing pipe (221), and a parallel pipe (233) connecting the first flushing pipe (211) and the second flushing pipe (221) in parallel.

2. A fine grid flush device according to claim 1, wherein, The first fine grid assembly (11) includes a grid support (111), a grid drive unit (112) and a grid conveying unit (113) disposed on the grid support (111). The grid conveying unit (113) includes a rotating shaft assembly (114) and a fine grid mesh (115) surrounding the rotating shaft assembly (114).

3. A fine grid flush device according to claim 2, wherein, It also includes a waste collection component (3), wherein the fine grid (115) is arranged at an inclined upward position; The waste collection component (3) includes a part located below the rising top of the fine grid (115) for collecting waste that falls from the fine grid (115).

4. A fine grid flush device according to claim 3, wherein, The waste collection component (3) includes a horizontally placed cylindrical shell (31), a guide shell (32) disposed at the top of the cylindrical shell (31), a spiral conveying rod (33) rotatably connected inside the cylindrical shell (31), a collection drive assembly (34) for driving the spiral conveying rod (33) to rotate, and a collection channel (35) disposed at the end of the cylindrical shell (31).

5. A fine grid flush device according to claim 1, wherein, The diameter of the parallel pipe (233) is the same as that of the flushing pipe.

6. A sewage treatment system characterised in that, It includes a sewage treatment tank (4), an aeration treatment device (5), and a fine screen flushing device (6) as described in any one of claims 1 to 5; The sewage treatment tank (4) is provided with a first treatment tank cavity (401) and a second treatment tank cavity (402) connected in sequence; The fine screen flushing device (6) is installed in the first treatment tank chamber (401), and the aeration treatment device (5) is installed in the second treatment tank chamber (402).

7. A wastewater treatment system according to claim 6, characterized in that, It also includes opening and closing components (7); A connecting channel (403) is provided between the first processing pool cavity (401) and the second processing pool cavity (402); The opening and closing component (7) includes an opening and closing cover (71) hinged to the communication channel (403) and an opening and closing drive assembly (72) for driving the opening and closing cover (71) to swing.

8. A sewage treatment system as claimed in claim 6, wherein, The aeration treatment device (5) includes an aeration blower and an aeration pipe (52) installed in the second treatment tank cavity (402).

9. The sewage treatment system of claim 6, wherein, It also includes a sludge suction device (8); The sludge suction device (8) includes a mobile vehicle (81) disposed above the second treatment tank cavity (402), a sludge suction component (82) disposed on the mobile vehicle (81), and a sludge treatment component (83) disposed outside the second treatment tank cavity (402); The sludge suction component (82) includes a sludge suction pump assembly (821) mounted on a mobile vehicle body (81), and a sludge inlet pipe (822) and a sludge outlet pipe (823) respectively connected to the sludge suction pump assembly (821). The sludge inlet pipe (822) extends into the second treatment tank cavity (402), and the sludge outlet pipe (823) extends out of the second treatment tank cavity (402) and is connected to the inlet of the sludge treatment component (83).

10. A sewage treatment system as claimed in claim 9, wherein, The bottom of the second treatment tank cavity (402) is provided with an inclined surface, and the inlet of the sludge inlet pipe (822) is adapted to the inclined surface.

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