spiral flow grit chamber

Abstract

The utility model discloses a spiral loop flow grit chamber in the technical field of sewage treatment. The grit chamber is mainly composed of grit chamber body and silt separating mechanism, the grit chamber body is jar body shape and sets up water inlet pipe and water outlet pipe respectively at top and bottom, and the silt separating mechanism contains separating jar, centrifugal assembly and knock assembly. The separating jar is installed in the grit chamber body, and the outer side is connected with the inner wall of the grit chamber body and is connected with the fixed frame, the outer circumferential side is evenly distributed with the drain hole and is equipped with the deslagging pipe at the bottom, the centrifugal force is realized through the rotation of helical blade in centrifugal assembly to realize the efficient separation of silt and water, and the knock assembly drives the knock block intermittent knock outside separating jar through gear meshing transmission, prevents silt from blocking the drain hole, simultaneously, the inner wall of separating jar bottom is funnel type, cooperates the scraper on the rotating rod, and further improves silt discharge efficiency. The utility model has efficient silt separating effect, can effectively prevent the drain hole from blocking, and prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a spiral-shaped circulating grit chamber. Background Technology

[0002] In the field of wastewater treatment, grit chambers serve as crucial pretreatment facilities. Their main function is to separate and remove denser inorganic particles such as sand from wastewater through gravity settling. This prevents subsequent treatment equipment from being damaged by wear and blockage caused by sand particles, ensuring the stable operation of the treatment system. Traditional grit chambers commonly include horizontal flow and vertical flow types.

[0003] Horizontal flow grit chambers occupy a relatively large area, and their sedimentation effect is easily affected by changes in flow rate, with the problem of incomplete sand sedimentation. Vertical flow grit chambers require strict control of the upward flow velocity; if the flow velocity is inappropriate, fine sand can be carried out by the water flow, also affecting the sand removal effect. However, with the development of technology, spiral circulation grit chambers have emerged, which have improved sand removal efficiency to a certain extent. For example, Chinese Patent Publication No. CN217041443U discloses a spiral circulation grit chamber for sewage treatment. When using this utility model, sewage falls into the funnel plate through the inlet pipe. The motor drives the funnel plate, spiral plate, and rotating plate to rotate through the central shaft. On one hand, the silt and sand in the sewage located in the funnel plate adhere to the inner surface of the funnel plate under the action of centrifugal force and the obstruction of the outlet hole. As they continuously accumulate, they gradually move downward along the spiral plate under the action of gravity. The water is thrown out directly through the outlet hole during the rotation and flows out through the outlet pipe. However, with continuous use, sediment can clog some of the outlet holes of the funnel plate, reducing the effectiveness of wastewater treatment.

[0004] To address the aforementioned issues, this application provides a spiral-shaped circulating grit chamber. Utility Model Content

[0005] The purpose of this utility model is to provide a spiral-shaped circulating grit chamber in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: The spiral-shaped circulating grit chamber includes the grit chamber body and the sediment separation mechanism, wherein: The sedimentation tank body is tank-shaped, and the top and bottom of the sedimentation tank body are respectively provided with water inlet pipe and water outlet pipe; The sediment separation mechanism includes a separation tank, a centrifugal assembly, and a striking assembly. The separation tank is installed inside the sedimentation tank body and is used to separate sediment and water from wastewater. One end of the inlet pipe is connected to the separation tank. The centrifugal assembly is located inside the separation tank. The striking assembly is located inside the sedimentation tank body and is used to continuously strike the separation tank.

[0007] Furthermore, a fixing frame is connected between the outer side of the separation tank and the inner wall of the sedimentation tank body. The separation tank and the sedimentation tank body are on the same central axis. Several evenly distributed drainage holes are constructed through the outer periphery of the separation tank. A connected slag discharge pipe is installed at the bottom of the separation tank, and the slag discharge pipe penetrates the bottom of the sedimentation tank body.

[0008] Furthermore, the centrifugal assembly includes a servo motor installed on the top of the sedimentation tank body. The output shaft of the servo motor is vertically downward and extends through the sedimentation tank body. A rotating rod is fixed on the output end of the servo motor and extends through the interior of the separation tank. The rotating rod is located on the central axis of the separation tank. The interior of the separation tank is provided with a spiral blade fixedly sleeved on the rotating rod. The outer diameter of the spiral blade is smaller than the inner diameter of the separation tank.

[0009] Furthermore, the striking assembly includes a main gear fixedly sleeved on the rotating rod, a connecting gear meshing with the main gear is rotatably mounted on the top of the separation tank, an mounting plate is connected between the outer side of the separation tank and the inner wall of the sedimentation tank body, a vertical mounting rod is rotatably mounted through the mounting plate, a secondary gear meshing with the connecting gear is fixedly sleeved on the top end of the mounting rod, a protrusion is fixed on the bottom end of the mounting rod, and one end of the protrusion intermittently contacts the outer side of the separation tank.

[0010] Furthermore, the protrusion includes a mounting block fixed to the bottom end of the mounting rod, a striking block is movably disposed on one side of the mounting block, a guide rod is fixed on the striking block and movably inserted inside the mounting block, a spring sleeved on the guide rod is connected between the striking block and the mounting block, and the striking block intermittently strikes the outside of the separation tank.

[0011] Furthermore, a device block corresponding to the striking block is fixed on the outer wall of the separation tank, and a contact block is provided on the device block, which contacts the striking block.

[0012] Furthermore, the contact block is movably disposed on one side of the device block, and a guide rod II is fixedly inserted into the device block. A spring II sleeved on the guide rod II is connected between the contact block and the device block.

[0013] Furthermore, the inner wall of the bottom of the separation tank is funnel-shaped, a connecting rod is fixed on the rotating rod, and a scraper with one side attached to the inner wall of the bottom of the separation tank is fixed at one end of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This solution utilizes the centrifugal assembly to generate powerful centrifugal force through the rotation of spiral blades, enabling efficient separation of silt and sand in wastewater within the separation tank. The special design of the separation tank, including the funnel-shaped bottom and the addition of scrapers, further promotes the aggregation and discharge of silt and sand, effectively improving the separation efficiency.

[0015] The ingenious design of the striking component in this solution uses gear meshing to drive the striking blocks to intermittently strike the outside of the separation tank. Combined with the buffering effect of the contact blocks and springs, this effectively prevents the accumulation and blockage of silt near the drain hole, ensuring the unobstructed flow of the drain hole and thus guaranteeing the continuous and efficient operation of wastewater treatment.

[0016] The entire sedimentation tank has a compact layout, with each component working in perfect harmony. The design of the separation tank and the sedimentation tank body being on the same central axis, as well as the structure through which the rotating rod runs, ensures the balance and stability of the equipment. In addition, the outer diameter of the spiral blades is smaller than the inner diameter of the separation tank, ensuring smooth water flow and efficient discharge of sediment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 A three-dimensional sectional view; Figure 3 This utility model Figure 2 An enlarged view of structure A in the middle; Figure 4 This utility model Figure 1 A three-dimensional structural diagram of the middle section; Figure 5 This utility model Figure 4 A three-dimensional structural diagram of the middle section.

[0018] In the diagram: 1. Grit chamber body; 11. Inlet pipe; 12. Outlet pipe; 2. Sediment separation mechanism; 21. Separation tank; 211. Fixing frame; 212. Drainage hole; 213. Slag discharge pipe; 214. Mounting plate; 215. Device block; 216. Contact block; 2161. Guide rod two; 2162. Spring two; 22. Centrifugal assembly; 221. Servo motor; 222. Rotating rod; 223. Spiral blade; 224. Connecting rod; 225. Scraper; 23. Hammering assembly; 231. Main gear; 232. Linking gear; 233. Mounting rod; 234. Secondary gear; 235. Protrusion; 2351. Mounting block; 2352. Hammering block; 2353. Guide rod one; 2354. Spring one. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] This application provides a spiral-shaped circulating grit chamber, mainly to address the problems existing in the Chinese patent publication CN217041443U, which discloses a spiral-shaped circulating grit chamber for sewage treatment. In this invention, sewage falls into a funnel plate through an inlet pipe. A motor drives the funnel plate, spiral plate, and rotating plate to rotate via a central shaft. On one hand, the silt and sand in the sewage located inside the funnel plate adhere to the inner surface of the funnel plate under the action of centrifugal force and the obstruction of the outlet holes. As it continuously accumulates, it gradually moves downwards along the spiral plate under the action of gravity. The water is directly thrown out through the outlet holes during rotation and flows out through the outlet pipe. However, with continuous use, silt and sand can clog some of the outlet holes, causing a reduction in sewage treatment efficiency. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-5 Please provide a detailed explanation: The spiral-shaped circulating grit chamber mainly consists of the grit chamber body 1 and the sediment separation mechanism 2, wherein: The sedimentation tank body 1 is tank-shaped, and the top and bottom of the sedimentation tank body 1 are respectively provided with an inlet pipe 11 and an outlet pipe 12. The sediment separation mechanism 2 includes a separation tank 21, a centrifugal assembly 22, and a striking assembly 23. The separation tank 21 is installed inside the sedimentation tank body 1 and is used to separate sediment and water in sewage. One end of the water inlet pipe 11 is connected to the separation tank 21. The centrifugal assembly 22 is installed inside the separation tank 21, and the striking assembly 23 is installed inside the sedimentation tank body 1 and is used to continuously strike the separation tank 21.

[0021] First, the grit chamber body 1 is installed in the sewage treatment system, ensuring that the inlet pipe 11 at the top is connected to the sewage source and the outlet pipe 12 at the bottom is connected to the subsequent treatment stage. Sewage enters the separation tank 21 through the inlet pipe 11. The centrifugal component 22 is activated, and the silt in the sewage adheres to the inner wall of the separation tank 21 under the action of centrifugal force and slides down the inner wall under the action of gravity. At the same time, the knocking component 23 continuously knocks on the outside of the separation tank 21 to prevent silt from clogging the drain hole 212 and ensure smooth water discharge. The silt is discharged through the sludge discharge pipe 213, achieving efficient separation of silt and water. This grit chamber effectively improves the silt separation efficiency, prevents the drain hole from clogging, and extends the service life of the equipment through the synergistic effect of centrifugal separation, knocking anti-clogging, and scraper-assisted sludge discharge. It also has a high degree of automation, stable and reliable operation, and is suitable for various sewage treatment scenarios.

[0022] Further, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 A fixing frame 211 is connected between the outer side of the separation tank 21 and the inner wall of the sedimentation tank body 1 to ensure that the separation tank 21 is stably fixed inside the sedimentation tank body 1. The separation tank 21 and the sedimentation tank body 1 are on the same central axis. Several evenly distributed drainage holes 212 are constructed through the outer periphery of the separation tank 21. These drainage holes 212 penetrate through the outer periphery of the separation tank 21 and are used to discharge the separated water to the outer area of ​​the sedimentation tank body 1. A connected slag discharge pipe 213 is installed at the bottom of the separation tank 21. The slag discharge pipe 213 penetrates through the bottom of the sedimentation tank body 1 so as to discharge the separated mud and sand out of the sedimentation tank body 1. The centrifugal assembly 22 includes a servo motor 221 installed on the top of the sedimentation tank body 1. The output shaft of the servo motor 221 is vertically downward and moves through the sedimentation tank body 1. A rotating rod 222 is fixed on the output end of the servo motor 221 and moves through the interior of the separation tank 21. The rotating rod 222 is located on the central axis of the separation tank 21. Inside the separation tank 21, there is a spiral blade 223 fixedly sleeved on the rotating rod 222. The outer diameter of the spiral blade 223 is smaller than the inner diameter of the separation tank 21 to ensure that the spiral blade 223 maintains a certain distance from the inner wall of the separation tank 21 when rotating, so as to avoid collision with the inner wall of the separation tank 21.

[0023] When wastewater enters the separator 21 through the inlet pipe 11, the servo motor 221 is started, driving the rotating rod 222 to rotate. This causes the spiral blades 223 to form a spiral circulation inside the separator 21. Under the action of centrifugal force, the silt in the wastewater adheres to the inner wall of the separator 21 and gradually slides down the inner wall. The separated water is discharged through the drain hole 212 to the outer area of ​​the sedimentation tank body 1, and finally discharged from the sedimentation tank body 1 through the outlet pipe 12. The separated silt accumulates at the bottom of the separator 21 under the action of gravity and is discharged from the sedimentation tank body 1 through the sludge discharge pipe 213, thereby achieving efficient separation of silt and water.

[0024] In this embodiment, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 The striking assembly 23 includes a main gear 231 fixedly sleeved on the rotating rod 222, a connecting gear 232 meshing with the main gear 231 rotatably mounted on the top of the separation tank 21, an mounting plate 214 connecting the outer side of the separation tank 21 and the inner wall of the sedimentation tank body 1, a vertical mounting rod 233 rotatably mounted through the mounting plate 214, a secondary gear 234 meshing with the connecting gear 232 fixedly sleeved on the top of the mounting rod 233, a protrusion 235 fixedly mounted on the bottom of the mounting rod 233, and one end of the protrusion 235 intermittently contacting the outer side of the separation tank 21; The protrusion 235 includes a mounting block 2351 fixed to the bottom of the mounting rod 233. A striking block 2352 is movably disposed on one side of the mounting block 2351. A guide rod 2353 is fixed on the striking block 2352 and movably inserted inside the mounting block 2351. A spring 2354 sleeved on the guide rod 2353 is connected between the striking block 2352 and the mounting block 2351. The striking block 2352 intermittently strikes the outside of the separation tank 21, so that the striking block 2352 can intermittently strike the outside of the separation tank 21 under the action of the spring 2354. A device block 215 corresponding to the striking block 2352 is fixed on the outer wall of the separator 21. A contact block 216 is provided on the device block 215, and the contact block 216 contacts the striking block 2352. The contact block 216 is movably disposed on one side of the device block 215. A guide rod 2161 is fixed on the contact block 216 and movably inserted inside the device block 215. A spring 2162 sleeved on the guide rod 2161 is connected between the contact block 216 and the device block 215, so that the contact block 216 can contact the striking block 2352 under the action of the spring 2162.

[0025] When the servo motor 221 drives the rotating rod 222 to rotate, the main gear 231 rotates accordingly, which in turn drives the meshing connecting gear 232 to rotate. The rotation of the connecting gear 232 further drives the meshing secondary gear 234 and the mounting rod 233 to rotate. The rotation of the mounting rod 233 causes the protrusion 235 to rotate accordingly. Under the buffering action of the first spring 2354, the striking block 2352 intermittently strikes the outside of the separation tank 21. At the same time, the contact block 216, under the action of the second spring 2162, contacts the striking block 2352, enhancing the striking effect. Through this striking method, the blockage of the drainage hole 212 on the outer periphery of the separation tank 21 is effectively prevented, ensuring the unobstructed flow of the drainage hole 212, thereby improving the working efficiency and operational stability of the sedimentation tank.

[0026] Furthermore, please refer to Figure 2 The inner wall of the bottom of the separator 21 is funnel-shaped. This shape is conducive to guiding the sediment to gather towards the center of the bottom. A connecting rod 224 is fixed on the rotating rod 222. A scraper 225 with one side attached to the inner wall of the bottom of the separator 21 is fixed at one end of the connecting rod 224. When the servo motor 221 starts and drives the rotating rod 222 to rotate, the connecting rod 224 rotates synchronously, which in turn drives the scraper 225 to rotate around the central axis of the separation tank 21. During the process, the scraper 225 is in close contact with the inner wall of the bottom of the separation tank 21. With the thrust generated by its rotation, the separated mud and sand are pushed along the funnel-shaped inner wall to the slag discharge pipe 213 so that they can be discharged from the sedimentation tank in time. This design detail not only improves the discharge efficiency of mud and sand and avoids the accumulation of mud and sand at the bottom of the separation tank 21, but also reduces the equipment wear and tear that may be caused by the long-term retention of mud and sand, thereby further improving the working efficiency and operational stability of the sedimentation tank.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spiral-shaped circulating grit chamber, comprising a grit chamber body (1) and a sediment separation mechanism (2), characterized in that, in: The sedimentation tank body (1) is tank-shaped, and the top and bottom of the sedimentation tank body (1) are respectively provided with an inlet pipe (11) and an outlet pipe (12). The sediment separation mechanism (2) includes a separation tank (21), a centrifugal assembly (22), and a beating assembly (23). The separation tank (21) is installed inside the sedimentation tank body (1) and is used to separate sediment and water in sewage. One end of the water inlet pipe (11) is connected to the separation tank (21). The centrifugal assembly (22) is located inside the separation tank (21). The beating assembly (23) is located inside the sedimentation tank body (1) and is used to continuously beat the separation tank (21).

2. The spiral-shaped circulating grit chamber according to claim 1, characterized in that: A fixing frame (211) is connected between the outer side of the separation tank (21) and the inner wall of the sedimentation tank body (1). The separation tank (21) and the sedimentation tank body (1) are on the same central axis. Several evenly distributed drainage holes (212) are constructed through the outer periphery of the separation tank (21). A connected slag discharge pipe (213) is installed at the bottom of the separation tank (21). The slag discharge pipe (213) penetrates the bottom of the sedimentation tank body (1).

3. The spiral circulating grit chamber according to claim 2, characterized in that: The centrifugal assembly (22) includes a servo motor (221) installed on the top of the sedimentation tank body (1). The output shaft of the servo motor (221) is vertically downward and moves through the sedimentation tank body (1). A rotating rod (222) is fixed on the output end of the servo motor (221) and moves through the interior of the separation tank (21). The rotating rod (222) is located on the central axis of the separation tank (21). The interior of the separation tank (21) is provided with a spiral blade (223) fixedly sleeved on the rotating rod (222). The outer diameter of the spiral blade (223) is smaller than the inner diameter of the separation tank (21).

4. The spiral circulating grit chamber according to claim 3, characterized in that: The striking assembly (23) includes a main gear (231) fixedly sleeved on the rotating rod (222). A connecting gear (232) meshing with the main gear (231) is rotatably installed on the top of the separation tank (21). An installation plate (214) is connected between the outer side of the separation tank (21) and the inner wall of the sedimentation tank body (1). A vertical installation rod (233) is rotatably installed through the installation plate (214). A secondary gear (234) meshing with the connecting gear (232) is fixedly sleeved on the top of the installation rod (233). A protrusion (235) is fixed at the bottom of the installation rod (233). One end of the protrusion (235) intermittently contacts the outer side of the separation tank (21).

5. The spiral circulating grit chamber according to claim 4, characterized in that: The protrusion (235) includes a mounting block (2351) fixed on the bottom end of the mounting rod (233). A striking block (2352) is movably provided on one side of the mounting block (2351). A guide rod (2353) is fixed on the striking block (2352) and movably inserted inside the mounting block (2351). A spring (2354) sleeved on the guide rod (2353) is connected between the striking block (2352) and the mounting block (2351). The striking block (2352) intermittently strikes the outside of the separation tank (21).

6. The spiral-shaped circulating grit chamber according to claim 5, characterized in that: A device block (215) corresponding to the striking block (2352) is fixed on the outer wall of the separation tank (21). A contact block (216) is provided on the device block (215), and the contact block (216) contacts the striking block (2352).

7. The spiral circulating grit chamber according to claim 6, characterized in that: The contact block (216) is movably disposed on one side of the device block (215). A guide rod (2161) is fixed on the contact block (216) and movably inserted inside the device block (215). A spring (2162) sleeved on the guide rod (2161) is connected between the contact block (216) and the device block (215).

8. The spiral circulating grit chamber according to claim 3, characterized in that: The inner wall of the bottom of the separation tank (21) is funnel-shaped. A connecting rod (224) is fixed on the rotating rod (222). One end of the connecting rod (224) is fixed with a scraper (225) that is attached to the inner wall of the bottom of the separation tank (21) on one side.

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