Rotational flow grit chamber for sewage treatment

Abstract

The utility model discloses a rotational flow grit chamber for sewage treatment, which relates to the technical field of sewage treatment and comprises a settling tank, the bottom surface of the settling tank is fixedly communicated with a collecting tank, the settling tank is fixedly communicated with a water inlet pipe and a water outlet pipe, the settling tank is fixedly connected with a fixing plate, a support is mounted on the fixing plate, and a motor is mounted on the support. A rotating rod is installed on an output rotating shaft of the motor, a control box is fixedly connected to the rotating rod, and a cleaning assembly is arranged on the control box. The cleaning device is reasonable in design structure, the problem that the inner wall of the pool body is damaged possibly caused by a traditional brush ball cleaning mode is effectively solved by using the scraping plate cleaning assembly driven by the two-way lead screw, the scraping plate is accurately matched with the inner wall of the pool body, it is ensured that the inner wall is gently and effectively scraped and cleaned in the rotating process, and the cleaning efficiency is improved. The cleaning effect is remarkably improved, and meanwhile structural damage possibly caused by strong impact is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a cyclone sand settling tank for sewage treatment. Background Art

[0002] The cyclone grit chamber is a grit chamber that uses mechanical force to control the flow pattern and velocity of water, accelerate the sedimentation of sand particles, and carry away organic matter with the water flow. The grit chamber consists of an inlet, an outlet, a grit chamber, a sand hopper, a turbine drive device, and a sand discharge system. Sewage flows into the grit chamber from the tangential direction of the inlet. A waterfall weir is installed in the water inlet channel to allow sand that may be deposited at the bottom of the channel to slide down into the grit chamber. A baffle is also provided to allow water and sand to flow toward the bottom of the chamber when they enter the grit chamber, and to enhance the wall attachment effect.

[0003] A Chinese patent with publication number CN110384978A discloses a cyclone sand settling tank for sewage treatment that can completely discharge sand. The cyclone sand settling tank stirs the sewage through a rotating mechanism while cleaning the inner wall of the sand tank to prevent the sand from remaining on the inner wall of the tank. Moreover, the discharged sand is separated from the sand and water through a separation mechanism, and the separated water is merged into the treated sewage, thereby increasing the water output and improving practicality.

[0004] The above scheme can clean the sand attached to the inner wall through the rotating mechanism, but the sleeve will generate centrifugal force to move the moving rod out when rotating, and then when the moving rod rotates and descends, the brush ball will hit the inner wall of the pool body, especially when it moves to the bottom, the impact force on the inner wall will reach the maximum, and in severe cases, it will damage the pool body, and the cleaning effect of the brush ball cleaning method is poor. To this end, we provide a cyclone sand settling tank for sewage treatment to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a cyclone sand settling tank for sewage treatment.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vortex sand settling tank for sewage treatment, comprising a sedimentation tank, the bottom surface of the sedimentation tank is fixedly connected to a collecting tank, the sedimentation tank is fixedly connected to a water inlet pipe and a drain pipe, the sedimentation tank is fixedly connected to a fixing plate, a support is installed on the fixing plate, a motor is installed on the support, a rotating rod is installed on the output shaft of the motor, a control box is fixedly connected to the rotating rod, a cleaning assembly is provided on the control box for cleaning the sedimentation tank, and the collecting tank is fixedly connected to a sand discharge pipe.

[0009] Furthermore, the cleaning component includes two slide grooves opened on the control box, a bidirectional screw rod rotatably connected to the control box, two scraping plates are threadedly connected to the bidirectional screw rod, and the two scraping plates are slidably connected to the two slide grooves respectively.

[0010] Furthermore, both ends of the bottom surface of the control box are fixedly connected with support blocks, and the bottom surfaces of the two support blocks are inlaid with balls.

[0011] Furthermore, an auxiliary rod is fixedly connected to the middle section of the control box, and vortex blades are installed on the auxiliary rod, and the vortex blades are located in the collection tank.

[0012] Furthermore, the water inlet pipe is tangent to the sedimentation tank, and the water inlet pipe is located below the drainage pipe.

[0013] 3) Beneficial effects:

[0014] Compared with the prior art, the cyclone sand settling tank for sewage treatment has the following beneficial effects:

[0015] The utility model effectively avoids the problem of damage to the inner wall of the pool body caused by the traditional brush ball cleaning method by using a scraper plate cleaning assembly driven by a bidirectional screw rod. The precise matching of the scraper plate and the inner wall of the pool body ensures gentle and effective scraping and cleaning of the inner wall during rotation, which significantly improves the cleaning effect and avoids structural damage caused by strong impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional Figure 1 ;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. sedimentation tank; 2. collection tank; 3. water inlet pipe; 4. sand discharge pipe; 5. fixing plate; 6. support; 7. motor; 8. rotating rod; 9. control box; 10. auxiliary rod; 11. support block; 12. ball bearing; 13. drain pipe; 14. vortex fan blade; 15. slide; 16. bidirectional screw; 17. scraper plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-4 As shown, the utility model provides a technical solution: a cyclone sand settling tank for sewage treatment, comprising a settling tank 1, the bottom surface of the settling tank 1 is fixedly connected to a collecting tank 2, the settling tank 1 is fixedly connected to a water inlet pipe 3 and a drain pipe 13, the water inlet pipe 3 is tangent to the settling tank 1, and the water inlet pipe 3 is located below the drain pipe 13.

[0023] The water inlet pipe 3 serves as the water inlet of the sewage. Since the water inlet pipe 3 is tangent to the sedimentation tank 1, the sewage will form a certain vortex after flowing into the sedimentation tank 1, and the silt inside the sewage will be settled to the collection tank 2, and the settled sewage will be discharged from the sedimentation tank 1 through the drain pipe 13.

[0024] A fixing plate 5 is fixedly connected to the settling tank 1 , a support 6 is installed on the fixing plate 5 , a motor 7 is installed on the support 6 , a rotating rod 8 is installed on the output shaft of the motor 7 , and a control box 9 is fixedly connected to the rotating rod 8 .

[0025] The output shaft of the motor 7 drives the rotating rod 8 to rotate, so that the rotating rod 8 drives the control box 9 to rotate under the support 6.

[0026] A cleaning assembly is provided on the control box 9 for cleaning the sedimentation tank 1. The cleaning assembly includes two slide grooves 15 opened on the control box 9 and a bidirectional screw rod 16 rotatably connected to the control box 9. Two scraping plates 17 are threadedly connected to the bidirectional screw rod 16, and the two scraping plates 17 are respectively slidably connected to the two slide grooves 15.

[0027] The bidirectional screw rod 16 is a rod with opposite threads designed at both ends. When the inner wall of the sedimentation tank 1 needs to be scraped and cleaned, the bidirectional screw rod 16 is rotated to enable the two scraping plates 17 to move towards each other inside the slide groove 15. The scraping plates 17 match the inner wall of the sedimentation tank 1. After the scraping plates 17 are attached to the inner wall of the sedimentation tank 1, the scraping plates 17 in the rotating state can scrape and clean the inner wall of the sedimentation tank 1 without generating a large impact force on the inner wall and achieving a better cleaning effect.

[0028] Both ends of the bottom surface of the control box 9 are fixedly connected with support blocks 11, and the bottom surfaces of the two support blocks 11 are inlaid with balls 12. When the control box 9 rotates, the balls 12 on the support blocks 11 will roll on the fixed plate 5, thereby supporting the control box 9 and improving the stability of the control box 9. The middle section of the control box 9 is fixedly connected with an auxiliary rod 10, and the auxiliary rod 10 is equipped with vortex blades 14, and the vortex blades 14 are located in the collection tank 2. After the control box 9 drives the support blocks 11 to rotate through the auxiliary rod 10, it will assist in applying vortex to the water flow in the sedimentation tank 1, thereby accelerating the sedimentation efficiency of the silt.

[0029] The collecting tank 2 is fixedly connected with a sand discharge pipe 4 , which is connected to a sediment pumping machine so that the settled sediment can be discharged from the collecting tank 2 through the sand discharge pipe 4 .

[0030] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cyclone grit chamber for sewage treatment, comprising a settling tank (1), characterized in that: The bottom surface of the sedimentation tank (1) is fixedly connected to a collecting tank (2); the sedimentation tank (1) is fixedly connected to a water inlet pipe (3) and a drain pipe (13); the sedimentation tank (1) is fixedly connected to a fixing plate (5); a support (6) is mounted on the fixing plate (5); a motor (7) is mounted on the support (6); a rotating rod (8) is mounted on the output shaft of the motor (7); a control box (9) is fixedly connected to the rotating rod (8); a cleaning assembly is provided on the control box (9) for cleaning the sedimentation tank (1); and a sand discharge pipe (4) is fixedly connected to the collecting tank (2).

2. The cyclone grit chamber for sewage treatment according to claim 1, characterized in that: The cleaning component comprises two slide grooves (15) provided on the control box (9), a bidirectional screw rod (16) rotatably connected to the control box (9), two scraping plates (17) being threadedly connected to the bidirectional screw rod (16), and the two scraping plates (17) are respectively slidably connected to the two slide grooves (15).

3. The cyclone grit chamber for sewage treatment according to claim 1, characterized in that: Both ends of the bottom surface of the control box (9) are fixedly connected with support blocks (11), and the bottom surfaces of the two support blocks (11) are inlaid with balls (12).

4. The cyclone grit chamber for sewage treatment according to claim 1, characterized in that: The middle section of the control box (9) is fixedly connected to an auxiliary rod (10), on which an eddy current fan blade (14) is mounted, and the eddy current fan blade (14) is located in the collection tank (2).

5. The cyclone grit chamber for sewage treatment according to claim 1, characterized in that: The water inlet pipe (3) is tangent to the sedimentation tank (1), and the water inlet pipe (3) is located below the drainage pipe (13).

Images