A sludge scraping device for sewage treatment sedimentation tanks

Abstract

This utility model discloses a sludge scraping device for a wastewater treatment sedimentation tank, relating to the field of wastewater treatment technology. It includes a sedimentation tank body, a lower sludge scraper, and an upper sludge scraper. The lower and upper sludge scrapers are installed on the inner walls of all four sides of the sedimentation tank body. A T-shaped groove is formed on the upper side of the lower sludge scraper, and the upper sludge scraper is installed above it. A T-shaped slider is fixed to the bottom of the upper sludge scraper, and the T-shaped slider is slidably connected to the T-shaped groove. A cleaning brush assembly is installed inside both the lower and upper sludge scrapers. The cleaning brush assembly includes a mounting cylinder, a spring, a limiting block, a connecting rod, and a cleaning brush. In this wastewater treatment sedimentation tank sludge scraping device, the cleaning brush is constantly pushed outward by the spring, allowing it to closely adhere to the inner wall of the sedimentation tank body. This enables the cleaning brush to assist the scraper in removing and cleaning the sludge from the inner wall of the sedimentation tank body, effectively improving the sludge scraping efficiency and effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a sludge scraping device for a wastewater treatment sedimentation tank. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. In the wastewater treatment process, sedimentation tanks are typically used to settle the wastewater. Sedimentation tanks are devices that use gravity settling to separate suspended solids or flocculent matter in the water. After prolonged use, sludge tends to accumulate on the inner walls of sedimentation tanks, thus requiring a sludge scraping device.

[0003] For example, the utility model application with application number 202420899779.4 discloses a sludge scraping device for sedimentation tanks. Similar to the sludge scraping device for sedimentation tanks mentioned above, there are still some shortcomings: during the sludge scraping process, it is not convenient to apply to sedimentation tanks of different lengths and widths, and the single scraper structure has the problem of insufficient sludge scraping. Utility Model Content

[0004] The purpose of this invention is to provide a sludge scraping device for sewage treatment sedimentation tanks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge scraping device for a sewage treatment sedimentation tank, comprising a sedimentation tank body, a lower sludge scraper, and an upper sludge scraper. The lower and upper sludge scrapers are installed on the four inner walls of the sedimentation tank body. A T-shaped groove is formed on the upper side of the lower sludge scraper. The upper sludge scraper is installed above the lower sludge scraper, and a T-shaped slider is fixed to the bottom of the upper sludge scraper. The T-shaped slider and the T-shaped groove are slidably connected. A cleaning brush assembly is installed inside both the lower and upper sludge scrapers. The cleaning brush assembly includes an mounting cylinder, a spring, a limiting block, a connecting rod, and a cleaning brush. A spring is fixed inside the mounting cylinder, and one end of the spring is connected to the limiting block. A connecting rod is fixed to one side of the limiting block, and a cleaning brush is installed on one side of the connecting rod. A scraper is fixed to the side of the lower and upper sludge scrapers near the inner wall of the sedimentation tank body. A lifting assembly is installed on one side of the outer wall of the sedimentation tank body.

[0006] Furthermore, ear plates are fixed on both the left and right sides of the upper scraper, and a fixing bolt passes through the middle of the ear plate.

[0007] Furthermore, the mounting cylinder is a hollow cylindrical structure with an opening on one side, and a protruding ring for limiting the positioning block is provided on the inner wall of the opening side of the mounting cylinder.

[0008] Furthermore, the limiting block is a circular plate, and the limiting block is slidably connected to the inner wall of the mounting cylinder, and the mounting cylinders are evenly distributed.

[0009] Furthermore, the lifting assembly includes a fixed frame and a drive motor. The fixed frame is provided in four sets, and the drive motor is installed inside the lower part of the fixed frame.

[0010] Furthermore, the lifting assembly also includes a lead screw and a movable sleeve. The lead screw is provided on the upper side of the drive motor, and the movable sleeve is sleeved on the outer side of the lead screw. The lead screw is rotatably connected to the fixed frame.

[0011] Furthermore, the lifting assembly also includes an external block, the movable sleeve is slidably connected to the inner wall of the fixed frame, and the outer side of the movable sleeve is connected to the external block, which has a "U" shaped structure.

[0012] Furthermore, a connecting frame is installed on the outer side of the outer block, and the other end of the connecting frame is fixedly connected to the upper middle part of the upper scraper.

[0013] This utility model provides a sludge scraping device for sewage treatment sedimentation tanks, which has the following beneficial effects:

[0014] This utility model is equipped with a scraper and a cleaning brush assembly. The scraper on the side of the lower and upper scraper closest to the inner wall of the sedimentation tank body can perform preliminary scraping of the sludge on the inner wall of the sedimentation tank body during its up-and-down movement. The limiting block can prevent sewage from entering the interior of the mounting cylinder and corroding the spring. At this time, the connecting rod and the cleaning brush on one side of the limiting block are always pushed outward by the spring, which can fit tightly against the inner wall of the sedimentation tank body. Thus, the cleaning brush assists the scraper in scraping and cleaning the sludge on the inner wall of the sedimentation tank body, effectively improving the scraping efficiency and scraping effect.

[0015] This utility model is equipped with a lower sludge scraper, an upper sludge scraper, and a lifting assembly. The sliding cooperation between the T-shaped slider and the T-shaped groove facilitates the assembly of the lower and upper sludge scrapers, allowing multiple sets of lower and upper sludge scrapers to be installed simultaneously. The positions of the two can be adjusted by sliding, making it suitable for sedimentation tanks of different lengths and widths, with good applicability. The lifting assembly facilitates the up-and-down movement of the upper and lower sludge scrapers, enabling several sets of upper and lower sludge scrapers that are attached to the inner wall of the sedimentation tank to reciprocate and scrape the sludge from the inner wall of the sedimentation tank. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a sludge scraping device for a sewage treatment sedimentation tank according to the present invention;

[0017] Figure 2 This utility model relates to a sludge scraping device for a wastewater treatment sedimentation tank. Figure 1Enlarged structural diagram at point A in the middle;

[0018] Figure 3 This is a half-sectional structural diagram of the lower and upper scraper components of a sludge scraping device for a sedimentation tank in wastewater treatment according to the present invention.

[0019] Figure 4 This is a half-sectional structural diagram of the lifting component of a sludge scraping device for a sedimentation tank in wastewater treatment according to this utility model.

[0020] In the diagram: 1. Sedimentation tank body; 2. Lower scraper; 3. T-shaped chute; 4. Upper scraper; 5. T-shaped slider; 6. Ear plate; 7. Fixing bolt; 8. Cleaning brush assembly; 801. Mounting cylinder; 802. Spring; 803. Limiting block; 804. Connecting rod; 805. Cleaning brush; 9. Scraper; 10. Lifting assembly; 1001. Fixing frame; 1002. Drive motor; 1003. Lead screw; 1004. Moving sleeve; 1005. External connecting block; 11. Connecting frame. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1-3 As shown, a sludge scraping device for a wastewater treatment sedimentation tank includes a sedimentation tank body 1, a lower sludge scraper 2, and an upper sludge scraper 4. The lower sludge scraper 2 and the upper sludge scraper 4 are installed on the inner walls of all four sides of the sedimentation tank body 1. A T-shaped groove 3 is formed on the upper side of the lower sludge scraper 2. The upper sludge scraper 4 is installed above the lower sludge scraper 2, and a T-shaped slider 5 is fixed to the bottom of the upper sludge scraper 4. The T-shaped slider 5 and the T-shaped groove 3 are slidably connected. Ear plates 6 are fixed to both the left and right sides of the upper sludge scraper 4, and a fixing bolt 7 passes through the middle of the ear plate 6. Scraper 9 is fixed on one side of the lower scraper 2 and the upper scraper 4 near the inner wall of the sedimentation tank body 1. The sliding cooperation between the T-shaped slider 5 and the T-shaped groove 3 facilitates the assembly of the lower scraper 2 and the upper scraper 4, so that multiple sets of lower scraper 2 and upper scraper 4 can be set at the same time, and the position between them can be adjusted by sliding. It is suitable for sedimentation tank bodies 1 of different lengths and widths, and has good applicability. Finally, the connection and fixation between the upper scraper 4 and the lower scraper 2 can be achieved by the fixing bolt 7 passing through the ear plate 6 and the lower scraper 2.

[0023] like Figures 2-3As shown, both the lower scraper 2 and the upper scraper 4 are equipped with a cleaning brush assembly 8. The cleaning brush assembly 8 includes a mounting cylinder 801, a spring 802, a limiting block 803, a connecting rod 804, and a cleaning brush 805. The spring 802 is fixed inside the mounting cylinder 801, and one end of the spring 802 is connected to the limiting block 803. The connecting rod 804 is fixed to one side of the limiting block 803, and the cleaning brush 805 is installed on one side of the connecting rod 804. The mounting cylinder 801 is a hollow cylindrical structure with one side open. A protruding ring for limiting the limiting block 803 is provided on the inner wall of the opening side of the mounting cylinder 801. The limiting block 803 is a circular plate, and the limiting block 803 is slidably connected to the inner wall of the mounting cylinder 801. The mounting cylinders 801 are evenly distributed. The lower scraper... The scraper 9 on the side of component 2 and upper scraper 4 near the inner wall of the sedimentation tank body 1 can initially scrape the sludge on the inner wall of the sedimentation tank body 1 during the up and down movement. The circular limiting block 803 can slide inside the mounting cylinder 801 under the left and right movement of the spring 802, and under the elastic action, it is tightly attached to the convex ring on the inner wall of the opening side of the mounting cylinder 801, so that the convex ring limits it and prevents sewage from entering the interior of the mounting cylinder 801 and corroding the spring 802. At this time, the connecting rod 804 and the cleaning brush 805 on one side of the limiting block 803 are pushed outward by the spring 802 and can be tightly attached to the inner wall of the sedimentation tank body 1, so that the cleaning brush 805 assists the scraper 9 in scraping and cleaning the sludge on the inner wall of the sedimentation tank body 1, effectively improving the sludge scraping efficiency and sludge scraping effect.

[0024] like Figure 1 and Figure 4As shown, a lifting assembly 10 is installed on one side of the outer wall of the sedimentation tank body 1. The lifting assembly 10 includes a fixed frame 1001 and a drive motor 1002. Four sets of fixed frames 1001 are provided, and the drive motor 1002 is installed inside the lower part of the fixed frame 1001. The lifting assembly 10 also includes a lead screw 1003 and a movable sleeve 1004. The lead screw 1003 is provided on the upper side of the drive motor 1002, and the movable sleeve 1004 is sleeved on the outer side of the lead screw 1003. The lead screw 1003 is rotatably connected to the fixed frame 1001. The lifting assembly 10 also includes an external block 1005. The movable sleeve 1004 is slidably connected to the inner wall of the fixed frame 1001, and the external block 1005 is connected to the outer side of the movable sleeve 1004. Block 1005 has a "U" shaped structure. A connecting frame 11 is installed on the outer side of the outer block 1005, and the other end of the connecting frame 11 is fixedly connected to the upper middle part of the upper sludge scraper 4. The drive motor 1002 can drive the screw 1003 to rotate, thereby driving the outer moving sleeve 1004 of the screw 1003 to move up and down. The moving sleeve 1004 can drive the outer block 1005 and the connecting frame 11 to move up and down. The other end of the connecting frame 11 is fixedly connected to the upper middle part of the upper sludge scraper 4, so that it can drive the upper sludge scraper 4 and the lower sludge scraper 2 to move up and down. Thus, several sets of upper sludge scrapers 4 and lower sludge scrapers 2 that are attached to the inner wall of the sedimentation tank body 1 can move back and forth to scrape the sludge from the inner wall of the sedimentation tank body 1.

[0025] In summary, as Figures 1-4 As shown, the sludge scraping device for the sewage treatment sedimentation tank can be used by first assembling the lower sludge scraper 2 and the upper sludge scraper 4 through the sliding cooperation between the T-shaped slider 5 and the T-shaped chute 3. This allows for the simultaneous installation of multiple sets of lower sludge scrapers 2 and upper sludge scrapers 4. The positions of the two parts can then be adjusted to suit sedimentation tank bodies 1 of different lengths and widths. Finally, the upper sludge scraper 4 and the lower sludge scraper 2 can be connected and fixed by the fixing bolt 7 passing through the ear plate 6 and the lower sludge scraper 2. Different connecting frames 11 are then installed according to the different lengths and widths of the sedimentation tank bodies 1. The drive motor 1002 drives the rotation of the lead screw 1003, thereby driving the upper and lower moving sleeve 1004 of the lead screw 1003 to move up and down. This allows the moving sleeve 1004 to drive the upper connecting block 1005 and the connecting frame 11 to move up and down. The other end of the connecting frame 11 is fixedly connected to the upper middle part of the upper sludge scraper 4, enabling it to drive the upper sludge scraper 4 and the lower sludge scraper 2 to move up and down.

[0026] This allows several sets of upper scraper 4 and lower scraper 2, which are attached to the inner wall of the sedimentation tank body 1, to reciprocate and scrape the inner wall of the sedimentation tank body 1. During this process, the scraper 9 on the side of the lower scraper 2 and upper scraper 4 closest to the inner wall of the sedimentation tank body 1 can perform preliminary scraping of the inner wall of the sedimentation tank body 1 as it moves up and down. The circular limiting block 803 can slide inside the mounting cylinder 801 under the left and right movement of the spring 802, and under the elastic action, it is tightly attached to the convex ring on the inner wall of the opening side of the mounting cylinder 801, so that the convex ring... The ring limits its movement to prevent sewage from entering the interior of the mounting cylinder 801 and corroding the spring 802. At this time, the connecting rod 804 and the cleaning brush 805 on one side of the limiting block 803 are pushed outward by the spring 802, which can fit tightly against the inner wall of the sedimentation tank body 1. Thus, the cleaning brush 805 assists the scraper 9 in scraping and cleaning the sludge on the inner wall of the sedimentation tank body 1. In addition, after scraping the sludge, the sludge and residual sewage at the bottom of the sedimentation tank body 1 can be removed by the sludge pumping mechanism. This completes the use of the sludge scraping device for the sewage treatment sedimentation tank.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A sludge scraping device for a sewage treatment sedimentation tank, comprising a sedimentation tank body (1), a lower sludge scraping member (2) and an upper sludge scraping member (4), characterized in that, The sedimentation tank body (1) has a lower sludge scraper (2) and an upper sludge scraper (4) installed on all four inner walls. The upper side of the lower sludge scraper (2) has a T-shaped groove (3). The upper sludge scraper (4) is installed above the lower sludge scraper (2). The bottom of the upper sludge scraper (4) is fixed with a T-shaped slider (5). The T-shaped slider (5) and the T-shaped groove (3) are slidably connected. The lower sludge scraper (2) and the upper sludge scraper (4) are both equipped with a cleaning brush assembly (8). The cleaning brush assembly (8) includes a mounting cylinder (801) and a spring (802). The set includes a limiting block (803), a connecting rod (804), and a cleaning brush (805). A spring (802) is fixed inside the mounting cylinder (801), and one end of the spring (802) is connected to the limiting block (803). A connecting rod (804) is fixed on one side of the limiting block (803), and a cleaning brush (805) is installed on one side of the connecting rod (804). Scrapers (9) are fixed on the side of the lower sludge scraper (2) and the upper sludge scraper (4) near the inner wall of the sedimentation tank body (1). A lifting assembly (10) is installed on the outer wall of the sedimentation tank body (1).

2. A sludge scraping device for a sewage treatment sedimentation tank according to claim 1, characterised in that The upper scraper (4) is fixed with ear plates (6) on both the left and right sides, and a fixing bolt (7) passes through the middle of the ear plate (6).

3. The sludge scraping device for a sewage treatment sedimentation tank according to claim 1, characterized in that, The mounting cylinder (801) is a hollow cylindrical structure with an opening on one side, and a protruding ring for limiting the positioning block (803) is provided on the inner wall of the opening side of the mounting cylinder (801).

4. The sludge scraping device for a sewage treatment sedimentation tank according to claim 1, characterized in that, The limiting block (803) is a circular plate, and the limiting block (803) is slidably connected to the inner wall of the mounting cylinder (801), and the mounting cylinders (801) are evenly distributed.

5. A sludge scraping device for a wastewater treatment sedimentation tank according to claim 1, characterized in that, The lifting assembly (10) includes a fixed frame (1001) and a drive motor (1002). The fixed frame (1001) is provided in four sets, and the drive motor (1002) is installed inside the lower part of the fixed frame (1001).

6. A sludge scraping device for a wastewater treatment sedimentation tank according to claim 5, characterized in that, The lifting assembly (10) also includes a lead screw (1003) and a movable sleeve (1004). The lead screw (1003) is provided on the upper side of the drive motor (1002), and the movable sleeve (1004) is sleeved on the outer side of the lead screw (1003). The lead screw (1003) is rotatably connected to the fixed frame (1001).

7. A sludge scraping device for a wastewater treatment sedimentation tank according to claim 6, characterized in that, The lifting assembly (10) also includes an external block (1005). The movable sleeve (1004) is slidably connected to the inner wall of the fixed frame (1001), and the outer side of the movable sleeve (1004) is connected to the external block (1005), and the external block (1005) has a "U" shaped structure.

8. A sludge scraping device for a wastewater treatment sedimentation tank according to claim 7, characterized in that, A connecting frame (11) is installed on the outer side of the outer block (1005), and the other end of the connecting frame (11) is fixedly connected to the upper middle part of the upper scraper (4).

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