A cyclone grit removal device based on sewage treatment

Abstract

The application discloses a cyclone sand setting device based on sewage treatment, and relates to the technical field of sewage treatment equipment.The cyclone sand setting device comprises a sedimentation cylinder, a barrier frame is arranged in the sedimentation cylinder, an extension cylinder is connected to the top end of the sedimentation cylinder, water guide pipes are arranged in an annular array on the outer circumferential side of the extension cylinder, a cyclone cylinder is connected to the end of the water guide pipe, a sand discharge pipe is connected to the bottom end of the cyclone cylinder, the other end of the sand discharge pipe is connected to the bottom end of the sedimentation cylinder and is located on the bottom of the barrier frame, and a rotating barrier frame is rotatably connected to the inner bottom of the sedimentation cylinder.The cyclone cylinders are used for separating sand and stones in sewage, the separated sewage and sand and stones are introduced into the sedimentation cylinder through the sand discharge pipe, the sand in the sewage is removed in a circulating manner, and when the sand discharge pipe introduces part of the sewage and sand and stones into the sedimentation cylinder, the water flow drives the rotating barrier frame to scrape and remove the sand and sludge at the bottom of the sedimentation cylinder and forces the sand and sludge to be discharged, so that the sedimentation cylinder is prevented from being blocked due to the deposition of sand at the bottom.

Description

Technical Field

[0001] This invention belongs to the technical field of sewage treatment equipment, and in particular relates to a vortex grit removal device for sewage treatment. Background Technology

[0002] A cyclone grit chamber is a mechanical separation device that uses the principle of centrifugal sedimentation to separate phases with different densities in a heterogeneous mixture. It is widely used in the field of wastewater treatment.

[0003] Current cyclone separators generally use a single cyclone tube. Due to limitations in treatment efficiency, the diameter of the single cyclone tube cannot be too large, restricting the processing capacity of the cyclone separator. Therefore, to improve production capacity, multiple cyclone tubes need to be installed in parallel. Chinese Patent CN201755534U (Application No.: 201020183996.1) discloses a "sand removal cyclone," in which the cyclone includes a shell 1, with multiple cyclone elements 2 arranged inside the shell. The shell is an elongated barrel. Upper support plates 3 and lower support plates 4 are respectively provided on the upper and lower sides of the barrel. The multiple cyclone elements are vertically fixed to the support plates on both sides, i.e., the two ends of the cyclone elements are fixedly installed on the support plates on both sides. A space is left between the upper and lower support plates and the upper and lower end faces of the shell. The space between the upper support plate and the upper end face of the barrel is called the clean liquid tank, which has an outlet located on the side wall of the barrel. The area between the lower support plate and the lower end face is called the sand storage chamber, which has a sand outlet located on the lower end plate. An inlet chamber is located between the upper and lower support plates at the raw liquid inlet of the cyclone separator, with an inlet on the chamber wall. The inlet chamber is located between the upper and lower support plates, or a partition is installed below the raw liquid inlet of the cyclone separator. The partition ensures that the raw liquid can smoothly enter the raw liquid inlet of the cyclone separator. Both the upper and lower support plates and the partition are sealed to the cyclone separator. However, with this structure, some sand and gravel in the wastewater introduced between the upper and lower support plates through the inlet precipitates and cannot be discharged. Furthermore, some sand and gravel discharged downwards by multiple cyclones enters the sand storage chamber, placing a heavy load on it and easily causing blockage of the sand outlet. Additionally, the cyclone separator's single-pass separation of sand and gravel in wastewater is ineffective and cannot meet practical application requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a cyclone grit chamber for wastewater treatment, which solves the problems mentioned above by using a sedimentation cylinder, a baffle frame, a cyclone cylinder, a grit discharge pipe, a multi-port pipe joint, and a rotating baffle frame in combination.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a vortex grit settling device for wastewater treatment, comprising a sedimentation cylinder; a baffle frame is provided inside the sedimentation cylinder; the baffle frame is generally conical in shape; an extension cylinder is connected to the top of the sedimentation cylinder; water guide pipes are arranged in a ring array on the outer periphery of the extension cylinder; a vortex cylinder is connected to the ends of several water guide pipes; a sand discharge pipe is connected to the bottom of the vortex cylinder; the other end of the sand discharge pipe is connected to the bottom periphery of the sedimentation cylinder and located at the bottom of the baffle frame; a multi-port pipe joint is connected between the top ends of several vortex cylinders; and a rotating blocking frame is rotatably connected to the bottom of the sedimentation cylinder.

[0007] As a preferred embodiment of the present invention, a water inlet pipe is provided on the outer peripheral side of the deposition cylinder and between the barrier frame and the rotating blocking frame; one end of the water inlet pipe extends to the bottom of the barrier frame inside the deposition cylinder; and the port faces the top of the deposition cylinder.

[0008] As a preferred embodiment of the present invention, the top and bottom of the sedimentation cylinder are both conical structures; the bottom of the sedimentation cylinder is provided with a ring array of connection ports that communicate with the sand discharge pipe; the bottom of the sedimentation cylinder is provided with a ring array of support legs.

[0009] As a preferred embodiment of the present invention, the bottom end of the sedimentation cylinder is provided with a sand discharge pipe head; a valve is provided on the peripheral side of the bottom end of the sand discharge pipe head;

[0010] A connecting bracket is provided at the bottom of the sedimentation cylinder and at the top of the sand discharge pipe head.

[0011] As a preferred embodiment of the present invention, the top circumferential side of the extension tube is provided with an annular guide frame; the annular guide frame is fitted with fastening bolts on its circumferential side; the annular guide frame is fixedly connected to the vortex tube by the fastening bolts.

[0012] As a preferred embodiment of the present invention, the barrier frame includes a fixing ring; the fixing ring is fixedly connected to the inner wall of the deposition cylinder by connecting bolts; the top inner side of the fixing ring is provided with a ring array of connecting rods; the ends of the connecting rods away from the fixing ring are connected to each other; the top of the fixing ring is provided with a plurality of barrier rings with gradually decreasing diameters from bottom to top and connected to the connecting rods; the barrier rings are inverted conical structures.

[0013] As a preferred embodiment of the present invention, the outer peripheral side of the middle part of the vortex cylinder is provided with a connecting pipe head that cooperates with the water guide pipe; the end of the connecting pipe head is tangent to the inner wall of the vortex cylinder; the bottom end of the vortex cylinder is connected to the sand discharge pipe; and the top part of the vortex cylinder is provided with a water outlet flange joint that is connected to the bifurcation end of the multi-port pipe joint.

[0014] As a preferred embodiment of the present invention, the rotating blocking frame includes a central shaft; the central shaft is rotatably connected to the connecting bracket via ball bearings; the top peripheral side of the central shaft and the end of the connecting port are provided with a circular array of sludge scraping blades; the edges of the sludge scraping blades are in contact with the bottom of the sedimentation cylinder; the bottom peripheral side of the central shaft and the top of the valve are provided with spiral blades that cooperate with the sand discharge pipe head.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention utilizes a combination of a sedimentation cylinder, a baffle frame, a vortex cylinder, a sand discharge pipe, a multi-port pipe joint, and a rotating baffle frame. Wastewater in the sedimentation cylinder is introduced into multiple vortex cylinders to separate sand and gravel from the wastewater. After separation, some of the wastewater and sand are reintroduced into the sedimentation cylinder through the sand discharge pipe, thus circulating the wastewater for sand removal. This ensures the effectiveness of wastewater treatment. Furthermore, as the sand discharge pipe introduces some wastewater and sand into the sedimentation cylinder, the water flow drives the rotating baffle frame to scrape and forcefully discharge the sand and sludge at the bottom of the sedimentation cylinder, preventing sand and gravel from accumulating at the bottom of the sedimentation cylinder and causing blockages. This meets the needs of practical use.

[0017] 2. This invention introduces sewage through the inlet pipe. Under the action of the baffle, some of the sand, gravel, and sludge in the sewage are intercepted, reducing the load on the cyclone separator and improving the efficiency of sewage treatment. At the same time, the sand and gravel and sludge introduced into the sedimentation cylinder through the sand discharge pipe are intercepted under the action of the baffle, allowing for the cyclical treatment of sewage and ensuring the effectiveness of sewage treatment.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a vortex grit removal device for sewage treatment according to the present invention.

[0021] Figure 2 This is a cross-sectional structural schematic diagram of a cyclone grit chamber device for wastewater treatment.

[0022] Figure 3 This is a schematic diagram of the deposition cylinder.

[0023] Figure 4 This is a schematic diagram of the barrier frame.

[0024] Figure 5 This is a schematic diagram of the cyclone separator.

[0025] Figure 6 This is a schematic diagram of the rotating blocking frame.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Sedimentation cylinder, 2-Blocking frame, 3-Swirl cylinder, 4-Sand discharge pipe, 5-Multi-port pipe joint, 6-Rotating blocking frame, 101-Extension cylinder, 102-Water guide pipe, 103-Inlet pipe, 104-Connection port, 105-Support leg, 106-Sand discharge pipe head, 107-Valve, 109-Annular guide frame, 1010-Fastening bolt, 201-Fixing ring, 202-Connecting bolt, 203-Connecting rod, 204-Blocking ring, 301-Connecting pipe head, 302-Outlet flange joint, 601-Central shaft, 602-Sludge scraper blade, 603-Helical blade. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific Implementation

[0029] Please see Figure 1-6As shown, this invention relates to a vortex grit chamber for wastewater treatment, comprising a sedimentation cylinder 1; the top and bottom of the sedimentation cylinder 1 are both conical structures; a baffle frame 2 is provided inside the sedimentation cylinder 1; the baffle frame 2 is generally conical; the baffle frame 2 includes a fixing ring 201; the fixing ring 201 is fixedly connected to the inner wall of the sedimentation cylinder 1 by connecting bolts 202; a connecting rod 203 is arranged in a ring array on the top inner side of the fixing ring 201; the ends of the connecting rods 203 away from the fixing ring 201 are connected to each other; a plurality of baffle rings 204 with gradually decreasing diameters and connected to the connecting rods 203 are respectively provided on the top of the fixing ring 201 from bottom to top; the baffle rings 204 are inverted conical structures; the sedimentation cylinder 1 An inlet pipe 103 is provided on the outer periphery of the sedimentation cylinder 1 and is located between the barrier frame 2 and the rotating blockage frame 6. One end of the inlet pipe 103 extends to the bottom of the barrier frame 2 inside the sedimentation cylinder 1, and the port faces the top of the sedimentation cylinder 1. An extension cylinder 101 is connected to the top of the sedimentation cylinder 1. A water guide pipe 102 is arranged in a ring array on the outer periphery of the extension cylinder 101. A vortex cylinder 3 is connected to the ends of several water guide pipes 102. A connecting pipe head 301 that mates with the water guide pipe 102 is connected to the outer periphery of the middle part of the vortex cylinder 3. The end of the connecting pipe head 301 is tangent to the inner wall of the vortex cylinder 3. A ring guide frame 109 is arranged in a ring array on the top periphery of the extension cylinder 101. A ring guide frame 109 is sleeved on the periphery of the ring guide frame 109. There are fastening bolts 1010; the annular guide frame 109 is fixedly connected to the cyclone cylinder 3 by the fastening bolts 1010; the bottom end of the cyclone cylinder 3 is connected to the sand discharge pipe 4; the bottom end of the cyclone cylinder 3 is connected to the sand discharge pipe 4; the other end of the sand discharge pipe 4 is connected to the bottom periphery of the sedimentation cylinder 1 and located at the bottom of the barrier frame 2; the bottom periphery of the sedimentation cylinder 1 is provided with a ring array of connection ports 104 connected to the sand discharge pipe 4; the outer periphery of the bottom end of the sedimentation cylinder 1 is provided with a ring array of support legs 105; the bottom end of the sedimentation cylinder 1 is provided with a sand discharge pipe head 106; the bottom periphery of the sand discharge pipe head 106 is provided with a valve 107; the bottom of the sedimentation cylinder 1 and the top of the sand discharge pipe head 106 are provided with a connecting bracket. A multi-port pipe joint 5 is provided between the top ends of several cyclone tubes 3; a water outlet flange joint 302 is provided at the top end of the cyclone tube 3 and is connected to the bifurcation end of the multi-port pipe joint 5; a rotating blocking frame 6 is rotatably connected to the bottom of the sedimentation tube 1; the rotating blocking frame 6 includes a central shaft 601; the central shaft 601 is rotatably connected to the connecting bracket through ball bearings; a scraper blade 602 is arranged in a ring array on the top peripheral side of the central shaft 601 and at the end of the connecting port 104; the edge of the scraper blade 602 is in contact with the bottom of the sedimentation tube 1; a spiral blade 603 is provided on the bottom peripheral side of the central shaft 601 and at the top of the valve 107 and is matched with the sand discharge pipe head 106.

[0030] A specific application of this embodiment is as follows: Wastewater is introduced into the sedimentation cylinder 1 through the inlet pipe 103. Since the port of the inlet pipe 103 faces the top of the sedimentation cylinder 1, the wastewater flowing into the sedimentation cylinder 1 flows upward, avoiding disturbance to the sand and sludge settled at the bottom of the sedimentation cylinder 1. The upward flow of wastewater is stabilized by the baffle frame 2, reducing the flow velocity of the wastewater. Some of the sand and sludge mixed in the wastewater settles downward. In addition, multiple inverted conical baffle rings 204 with gradually decreasing diameters intercept some impurities in the wastewater, pre-treating the wastewater, reducing the load on the multiple vortex cylinders 3 for wastewater treatment, and improving the efficiency of wastewater treatment. The wastewater is discharged through multiple guide pipes 102 on the circumference of the extension cylinder 101. The connecting pipe heads 301 on the circumference of the multiple vortex cylinders 3 are connected to the guide pipes 102, so that the sand and sludge contained in the wastewater flow downward at an angle along the tangential direction of the inner wall of the vortex cylinder 3, while the wastewater without sand and sludge flows downward. The vortex tube 3 rotates upwards along its center position and exits through the multi-port pipe joint 5 connected to the outlet flange joint 302. Due to the different densities of sand and water, under the combined action of centrifugal force, centripetal force, buoyancy, and fluid drag, the denser sand particles and sludge are discharged from the bottom of the vortex tube 3 and introduced into the bottom of the sedimentation tube 1 through the sand discharge pipe 4. When the sand and sludge introduced into the bottom of the sedimentation tube 1 through the sand discharge pipe 4 enter the sedimentation tube 1, the impact of the water flow causes the scraper blades 602 located on the circumferential side of the top of the central shaft 601 to rotate along the bottom of the sedimentation tube 1, scraping off the sludge attached to the bottom of the sedimentation tube 1. The spiral blades 603 located at the bottom of the central shaft 601 rotate along the sand discharge pipe head 106, forcibly discharging the sand and sludge deposited at the bottom of the sedimentation tube 1. The wastewater carrying sand and gravel introduced into the bottom of the sedimentation tube 1 through the sand discharge pipe 4 can be reintroduced into the vortex tube 3 for separation. The wastewater is circulated for sand removal, ensuring the effectiveness of wastewater treatment.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cyclone grit chamber for wastewater treatment, characterized in that: It includes a deposition cylinder (1); the deposition cylinder (1) is provided with a baffle frame (2) inside; the baffle frame (2) is a conical structure in whole; The top of the sedimentation cylinder (1) is connected to an extension cylinder (101); the outer periphery of the extension cylinder (101) is provided with a ring array of water guide pipes (102); the ends of several of the water guide pipes (102) are connected to a vortex cylinder (3). The bottom end of the cyclone tube (3) is connected to a sand discharge pipe (4); the other end of the sand discharge pipe (4) is connected to the bottom periphery of the sedimentation tube (1) and located at the bottom of the barrier frame (2); A multi-port pipe joint (5) is provided between the top ends of several of the cyclone tubes (3); The bottom of the deposition cylinder (1) is rotatably connected to a rotating blocking frame (6). The sedimentation cylinder (1) has an inlet pipe (103) connected to the outer peripheral side of the sedimentation cylinder (1) and between the barrier frame (2) and the rotating barrier frame (6). The inlet pipe (103) is located inside the sedimentation cylinder (1) and extends to the bottom of the barrier frame (2); with the port facing the top of the sedimentation cylinder (1); The barrier frame (2) includes a fixing ring (201); the fixing ring (201) is fixedly connected to the inner wall of the deposition cylinder (1) by connecting bolts (202); The inner top of the fixing ring (201) is provided with connecting rods (203) arranged in a ring array; the ends of the connecting rods (203) away from the fixing ring (201) are connected to each other; The top of the fixing ring (201) is provided with a plurality of barrier rings (204) with gradually decreasing diameters from bottom to top and connected to the connecting rod (203); the barrier ring (204) has an inverted conical structure; The outer periphery of the middle part of the vortex tube (3) is connected to a connecting pipe head (301) that cooperates with the water guide pipe (102); the end of the connecting pipe head (301) is tangent to the inner wall of the vortex tube (3); The bottom end of the cyclone tube (3) is connected to the sand discharge pipe (4); The top of the vortex tube (3) is connected to a water outlet flange joint (302) that is connected to the branch end of the multi-port pipe joint (5).

2. The cyclone grit chamber for wastewater treatment according to claim 1, characterized in that, The top and bottom of the deposition cylinder (1) are both conical structures; The bottom periphery of the sedimentation cylinder (1) is provided with a ring array of connection ports (104) that are interconnected with the sand discharge pipe (4). The bottom outer periphery of the deposition cylinder (1) is provided with a ring array of support legs (105).

3. A cyclone grit chamber for wastewater treatment according to claim 2, characterized in that, The sedimentation cylinder (1) is provided with a sand discharge pipe head (106) at the bottom end; a valve (107) is provided on the circumferential side of the bottom end of the sand discharge pipe head (106). A connecting bracket is provided at the bottom of the sedimentation cylinder (1) and at the top of the sand discharge pipe head (106).

4. A cyclone grit chamber for wastewater treatment according to claim 1, characterized in that, The top circumferential side of the extension tube (101) is provided with an annular guide frame (109); the annular guide frame (109) is fitted with fastening bolts (1010) on its circumferential side; the annular guide frame (109) is fixedly connected to the vortex tube (3) by the fastening bolts (1010).

5. A cyclone grit chamber for wastewater treatment according to claim 3, characterized in that, The rotating blocking frame (6) includes a central shaft (601); the central shaft (601) is rotatably connected to the connecting bracket via ball bearings; The central shaft (601) has scraper blades (602) arranged in a ring array on the top peripheral side and at the end of the connection port (104); the edges of the scraper blades (602) are in contact with the bottom of the sedimentation cylinder (1); The central shaft (601) has a spiral blade (603) on its bottom circumferential side and located on the top of the valve (107) that cooperates with the sand discharge pipe head (106).

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