Rotational flow desilting device for water conservancy project

Abstract

The rotational flow desilting device for the water conservancy project comprises a rotational flow cylinder and a desilting cylinder, a rotating cylinder penetrates through the rotational flow cylinder and is rotationally connected with the rotational flow cylinder, a plurality of impellers are evenly fixed to the lower periphery of the rotating cylinder, a sand pumping pipe penetrates through the rotating cylinder, the bottom end of the sand pumping pipe extends into the desilting cylinder, and the bottom end of the sand pumping pipe extends into the desilting cylinder. The top end of the sand pumping pipe extends out of the rotating cylinder and is connected with a sand pump through a sand discharging pipe, a sand stirring frame is rotationally installed at the inner bottom of the sand settling cylinder and surrounds the sand pumping pipe, a wall scraping piece is installed at the end, close to the inner side wall of the sand settling cylinder, of the sand stirring frame, and a brush roller is rotationally installed on the wall scraping piece. The rotatable sand stirring frame is arranged in the desilting cylinder, so that deposited sand can be stirred, the speed of the sand being pumped away and discharged by the sand discharging pipe is increased, the wall scraping piece can be driven to clean the inner side wall of the desilting cylinder, and therefore adhesion and caking of the sand and impurities on the inner side wall of the desilting cylinder are reduced, and the desilting efficiency is improved. And the trouble of frequent manual cleaning is saved while the sand discharge rate is ensured.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a vortex sedimentation device for water conservancy engineering. Background Technology

[0002] A vortex grit chamber is a grit chamber that uses mechanical force to control the flow pattern and velocity of water, accelerates the sedimentation of sand particles, and carries away organic matter with the water flow. Wastewater flows into the grit chamber tangentially from the inlet, causing sand that may have settled at the bottom of the channel to slide downwards into the grit chamber.

[0003] However, as time goes by, the inner wall of the existing vortex sedimentation device will gradually accumulate a large amount of impurities and sediment, which is very easy to clean. However, if the impurities and sediment are not removed for a long time, they will adhere to the inner wall and form clumps, which will not only reduce the sand discharge rate, but also reduce the usable space of the sedimentation tank.

[0004] Therefore, we propose a vortex sedimentation device for water conservancy projects to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a vortex sedimentation device for water conservancy projects to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vortex sedimentation device for hydraulic engineering includes a vortex cylinder and a sedimentation cylinder. A rotating cylinder is rotatably connected through the vortex cylinder, and several impellers are evenly fixed around the lower circumference of the rotating cylinder. A sand-draining pipe is inserted through the rotating cylinder, with its bottom end extending into the sedimentation cylinder and its top end extending out of the rotating cylinder and connected to a sand-draining pump via a sand discharge pipe. A sand-stirring frame is rotatably installed at the inner bottom of the sedimentation cylinder, and a second motor for driving the sand-stirring frame to rotate is installed at the outer bottom of the sedimentation cylinder. The sand-stirring frame surrounds the sand-draining pipe, and a stirring rod is installed on the sand-stirring frame. A wall-scraping component is installed at one end of the sand-stirring frame near the inner wall of the sedimentation cylinder, and a brush roller is rotatably installed on the wall-scraping component.

[0008] In a further embodiment, a bevel gear ring is fixed to the outer periphery of the top end of the rotating drum. The outer periphery of the bevel gear ring is vertically meshed with a bevel gear, and a motor is mounted on the shaft of the bevel gear.

[0009] In a further embodiment, the bottom of the rotating drum is rotatably connected to the stabilizing cylinder, which is fixed to the vortex cylinder by several support rods, and the sand pumping pipe passes through the stabilizing cylinder and is fixedly connected to it.

[0010] In a further embodiment, multiple transverse stirring rods are arranged around the stirring rod, and the stirring rods of the stirring rods on both sides of the sand stirring frame are staggered.

[0011] In a further embodiment, a scraper is also installed on the scraper component, with a sand passage groove between the scraper and the scraper component, and the scraper is in contact with the inner wall of the sand settling cylinder.

[0012] In a further embodiment, both ends of the brush roller are rotatably connected to bushings, one bushing is sleeved with the positioning shaft at the bottom of the scraper, and the other bushing passes through the groove at the top of the scraper and is threaded with a locking sleeve.

[0013] In a further embodiment, the connection ports of the cyclone drum and the sedimentation drum both extend outward to form convex edges, a sealing ring is held between the two convex edges, and the two convex edges are locked together by several sets of bolts and nuts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a rotatable agitator inside the settling cylinder. This agitator not only stirs the deposited sand, accelerating its removal and discharge through the discharge pipe to reduce blockages, but also drives a scraper to clean the inner wall of the settling cylinder. This reduces the adhesion and agglomeration of sand and impurities on the inner wall, ensuring the discharge rate while eliminating the need for frequent manual cleaning, making cleaning more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a half-section view of the internal structure of the cyclone tube and sedimentation tube of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the sand stirring frame and wall scraping component of this utility model;

[0019] Figure 4 This is a partial structural diagram of the wall scraper of this utility model.

[0020] In the diagram: 1. Cyclone drum; 2. Settling drum; 3. Rotating drum; 4. Impeller; 5. Sand dredging pipe; 6. Sand dredging pump; 7. Sand discharge pipe; 8. Bevel gear ring; 9. Bevel gear; 10. Motor 1; 11. Support rod; 12. Stabilizing cylinder; 13. Sand stirring frame; 14. Stirring rod; 141. Stirring rod; 15. Scraper; 151. Slot; 152. Positioning shaft; 16. Brush roller; 161. Bushing; 162. Locking sleeve; 17. Motor 2; 18. Scraper; 19. Protruding edge; 20. Sealing ring. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-2 A vortex sedimentation device for hydraulic engineering includes a vortex cylinder 1 and a sedimentation cylinder 2. The outer wall of the vortex cylinder 1 has parallel liquid inlet and outlet along the tangential direction. A rotating cylinder 3 is rotatably connected through the center of the vortex cylinder 1, and several impellers 4 are evenly fixed around the lower periphery of the rotating cylinder 3. A sediment extraction pipe 5 passes through the rotating cylinder 3. Since the sediment extraction pipe 5 passes through the rotating cylinder 3, a bevel gear ring 8 is fixed around the top periphery of the rotating cylinder 3 to facilitate control of its rotation. A bevel gear 9 is vertically meshed around the periphery of the bevel gear ring 8. Motor 10 is mounted on the shaft of gear 9. Both bevel ring 8 and bevel gear 9 are rotatably connected to the top of vortex cylinder 1 through bearings, while motor 10 is fixedly connected to the top of vortex cylinder 1. When the rotating drum 3 drives the impeller 4 to rotate, the water flow is accelerated to flow in a spiral vortex. The bottom end of the sand dredging pipe 5 extends into the sedimentation cylinder 2 to facilitate the extraction of sand from the sedimentation cylinder 2. The top end of the sand dredging pipe 5 extends out of the rotating drum 3. The sand dredging pipe 5 is connected to the inlet end of the sand pump 6 through a section of sand discharge pipe 7. The outlet end of the sand pump 6 discharges sand through another section of sand discharge pipe 7.

[0025] Please see Figure 2 In order to improve the stability of the rotating drum 3 and the sand dredging pipe 5 during use, the bottom of the rotating drum 3 is rotatably connected to the stabilizing cylinder 12. The stabilizing cylinder 12 is fixed to the vortex cylinder 1 by several support rods 11, and the sand dredging pipe 5 passes through the stabilizing cylinder 12 and is fixedly connected to it.

[0026] Please see Figure 2-3 Considering that sand deposition and agglomeration affect the sand discharge rate, a sand stirring frame 13 is rotatably installed at the inner bottom of the settling cylinder 2, and a motor 17 for driving the sand stirring frame 13 to rotate is installed at the outer bottom of the settling cylinder 2. The sand stirring frame 13 has a concave structure and surrounds the sand extraction pipe 5. A stirring rod 14 is installed on the sand stirring frame 13, which is parallel to the sand extraction pipe 5 and extends downward. Multiple transverse stirring rods 141 are arranged around the stirring rod 14. The stirring rods 141 of the stirring rods 14 on both sides are staggered to facilitate stirring a larger area of ​​deposited sand. The end of the sand stirring frame 13 near the inner wall of the settling cylinder 2 is equipped with a wall scraper 15, and a brush roller 16 is rotatably mounted on the wall scraper 15. The brush roller 16 is in contact with the inner wall of the settling cylinder 2 so that when the sand stirring frame 13 rotates, it can drive the brush roller 16 to rotate along the inner wall of the settling cylinder 2, thereby cleaning the inner wall of the settling cylinder 2 and reducing the adhesion of sand and impurities.

[0027] Please see Figure 3-4 The wall scraper 15 is also equipped with a scraper 18. There is a sand passage groove between the scraper 18 and the wall scraper 15, and the scraper 18 is in close contact with the inner wall of the sand settling cylinder 2, so that the scraper 18 scrapes and cleans the sand and impurities on the inner wall of the sand settling cylinder 2, while not affecting the sand discharge from the wall scraper 15.

[0028] Please see Figure 4 Considering that the bristles of the brush roller 16 need to be replaced after long-term use, in order to facilitate the replacement of the brush roller 16, both ends of the brush roller 16 are rotatably connected to bushings 161. One bushing 161 is sleeved with the positioning shaft 152 at the bottom of the wall scraper 15, and the sleeve part of the two adopts a non-cylindrical structure to avoid slippage. The other bushing 161 passes through the slot 151 at the top of the wall scraper 15 and is threadedly connected to a locking sleeve 162. When the locking sleeve 162 is tightened, it secures the bushing 161, and at the same time makes it easy to disassemble the brush roller 16 relative to the wall scraper 15.

[0029] Please see Figure 1-2 To facilitate thorough cleaning of the sedimentation cylinder 2 later, the connection ports of the vortex cylinder 1 and the sedimentation cylinder 2 are both extended outward to form a convex edge 19. A sealing ring 20 is held between the two convex edges 19, and the two convex edges 19 are locked together by several sets of bolts and nuts, so that the vortex cylinder 1 and the sedimentation cylinder 2 can be disassembled, which also facilitates the replacement of the brush roller 16.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vortex sedimentation device for hydraulic engineering, comprising a vortex cylinder (1) and a sedimentation cylinder (2), characterized in that: The vortex tube (1) is connected to the rotating drum (3) through and rotated. Several impellers (4) are evenly fixed around the bottom of the rotating drum (3). The rotating drum (3) is connected to the sand suction pipe (5). The bottom end of the sand suction pipe (5) extends into the sand settling tube (2). The top end of the sand suction pipe (5) extends out of the rotating drum (3) and is connected to the sand pump (6) through the sand discharge pipe (7). The bottom of the sand settling tube (2) is rotatably equipped with a sand stirring frame (13). The bottom of the sand settling tube (2) is equipped with a motor (17) that drives the sand stirring frame (13) to rotate. The sand stirring frame (13) surrounds the sand suction pipe (5). A stirring rod (14) is installed on the sand stirring frame (13). A wall scraper (15) is installed at the end of the sand stirring frame (13) near the inner wall of the sand settling tube (2). A brush roller (16) is rotatably installed on the wall scraper (15).

2. The vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: A bevel ring (8) is fixed to the outer periphery of the top of the rotating drum (3). The outer periphery of the bevel ring (8) is vertically meshed with a bevel gear (9), and a motor (10) is mounted on the shaft of the bevel gear (9).

3. The vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: The bottom of the rotating drum (3) is rotatably connected to the stabilizing drum (12), which is fixed to the vortex drum (1) by several support rods (11), and the sand pumping pipe (5) passes through the stabilizing drum (12) and is fixedly connected to it.

4. The vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: The stirring rod (14) is surrounded by multiple horizontal stirring rods (141), and the stirring rods (141) of the stirring rods (14) on both sides of the sand stirring frame (13) are staggered.

5. A vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: The wall scraper (15) is also equipped with a scraper (18), which has a sand passage groove between it and the wall scraper (15), and the scraper (18) is in contact with the inner wall of the sand settling cylinder (2).

6. A vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: Both ends of the brush roller (16) are rotatably connected to bushings (161). One bushing (161) is sleeved with the positioning shaft (152) at the bottom of the scraper (15), and the other bushing (161) passes through the slot (151) at the top of the scraper (15) and is threadedly connected to a locking sleeve (162).

7. A vortex sedimentation device for hydraulic engineering according to claim 1, characterized in that: The connection ports of the cyclone tube (1) and the sedimentation tube (2) are both extended outward to form a convex edge (19), and a sealing ring (20) is held between the two convex edges (19), and the two convex edges (19) are locked together by several sets of bolts and nuts.

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