Pump sand lifting type rotational flow grit chamber

Abstract

The utility model relates to the technical field of environmental protection equipment, and discloses a pump sand lifting type rotational flow grit chamber which comprises a shell, a sand hopper is arranged at the bottom of the shell, a rotating mechanism is arranged at the top of the shell, and due to the meshing relation between a first driving gear and a second driven gear and the meshing relation between the second driving gear and the first driving gear, the rotating mechanism can rotate around the first driving gear. The first stirring blades and the second stirring blades on the cylinder and the rotating rod rotate at a speed difference, and when the first stirring blades and the second stirring blades are staggered due to the rotating speed, large shearing force can be generated, so that fibrous materials can be cut up conveniently, and the situation that the fibrous materials and the sawtooth-shaped blades rotate in the same direction due to the inertia of the vortex of flowing water is avoided; the rotation speed of the sawtooth-shaped blade is gradually close to the rotation speed of the fibrous object, so that the shearing force generated subsequently is not enough, and the fibrous object is not easy to cut up.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a pump-lifted sand type cyclone sand settling tank. Background Art

[0002] The pump-lift sand cyclone grit chamber is a common sand removal tank. The grit chamber consists of an inlet, an outlet, a grit zone, a sand hopper, a turbine drive device, and a sand discharge system. Sewage flows into the grit zone from the inlet in a tangential direction. The rotating turbine blades make the sand flow in a spiral shape, which promotes the separation of organic matter and sand. Due to the different centrifugal forces, the sand with a relatively large density is thrown to the pool wall and sinks into the sand hopper under the action of gravity; while the lighter organic matter is separated from the sand in the middle part of the grit chamber, and the organic matter is carried out of the pool with the vortex of the outlet water. By adjusting the speed, the best grit settling effect can be achieved. The sand in the sand hopper can be removed by air lifting, sand pump discharge, etc., and then the sand and water separation reaches the standard of clean sand discharge. However, there are still some disadvantages under the high sand removal efficiency. Fibrous objects will be entangled on the stirring paddle, and the sand in the sand hopper is difficult to pump out due to compaction.

[0003] The prior art publication number is CN214680214U, which provides a technical solution: a pump-lifted sand cyclone sand settling tank, comprising a stirring mechanism, a shell, a sand hopper, a sand pump, a water inlet pipe, a vibrator, and a water pump, wherein the water pump is installed inside the shell, the stirring mechanism comprises a stirring shaft and a stirring blade, the stirring shaft and the stirring blade are located in the shell, the stirring shaft is vertically arranged, the stirring blade is provided with a serrated blade, the water pump is connected to the water pump, one end of the water pump is connected to the water pump, and the other end of the water pump is extended out of the shell, the vibrator is installed inside the sand hopper, one end of the water inlet pipe is inside the sand hopper, and the other end extends out of the sand hopper, the sand pump is installed outside the sand hopper, one end of the sand pumping pipe is connected to the sand pump, and the other end of the sand pumping pipe is located inside the sand hopper, and the bottom of the shell is through-connected with the top of the sand hopper. The utility model can prevent fibrous objects from winding around the stirring blade, and can effectively loosen the compacted sand in the sand hopper for convenient extraction.

[0004] but:

[0005] This solution can use the serrated blades on the stirring blades to cut into pieces the fibrous objects wrapped around the stirring blades to prevent the fibrous objects from being entangled with the stirring blades. However, in actual use, due to the inertia of the water vortex, the fibrous objects and the serrated blades rotate in the same direction. The rotation speeds of the serrated blades and the fibrous objects will gradually approach each other, resulting in insufficient subsequent shear force, making it difficult to cut the fibrous objects into pieces. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a pump-lifted sand type cyclone sand settling tank.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pump-lifted sand cyclone sand settling tank, comprising a shell, a sand hopper is provided at the bottom of the shell, a rotating mechanism is provided at the top of the shell, the rotating mechanism comprises a support frame, the support frame is fixedly connected to the top of the shell, the inner wall of the support frame is rotatably connected to a cylinder through a bearing, and one end of the bottom of the cylinder extends to a position near the top of the sand hopper, the inner wall of the cylinder is rotatably connected to a rotating rod through a bearing, and the two ends of the rotating rod extend to the outside of the two ends of the cylinder respectively, and the outer wall of the cylinder close to the bottom end is fixedly connected to the first stirring member on both sides respectively. The cam is provided with a plurality of gears, and the plurality of gears are provided with gears that are meshed with each other, and the plurality of gears are provided with gears that are meshed with each other, and the plurality of gears are provided with gears that are meshed with each other. A second driving gear is fixedly sleeved on the wall above the first driving gear, and the second driving gear is meshed and connected with the second driven gear. The first driving gear and the second driving gear are driven to rotate by starting the motor, and the first driven gear and the second driven gear are respectively driven to rotate the first stirring blade and the second stirring blade on the cylinder and the rotating rod through the meshed first driven gear and the second driven gear, so that a vortex is formed in the water body, and the sand particles flow in a spiral shape, which promotes the separation of organic matter and sand particles. Due to the different centrifugal forces, the sand particles with a relatively large density are thrown to the pool wall and sink into the sand hopper under the action of gravity; while the lighter organic matter is separated from the sand in the middle part of the shell. , by adjusting the rotation speed to achieve the best sand settling effect, and due to the meshing relationship between the first driving gear and the second driven gear and the second driving gear and the first driving gear, there is a speed difference between the first stirring blade and the second stirring blade on the cylinder and the rotating rod. When the first stirring blade and the second stirring blade are staggered due to the rotation speed, a large shear force will be generated to facilitate the chopping of the fiber material, so as to avoid the fibrous object and the serrated blade rotating in the same direction due to the inertia of the flowing water vortex. The rotation speed of the serrated blade and the fibrous object will gradually approach, resulting in insufficient shear force generated subsequently, and it is not easy to chop the fibrous object.

[0010] Preferably, the serrated blades on the first stirring blade and the second stirring blade are arranged in a staggered manner to prevent the serrated blades from colliding.

[0011] Preferably, the first driving gear and the second driven gear have the same outer diameter, the second driving gear and the first driving gear have the same outer diameter, and the outer diameters of the second driving gear and the first driving gear are smaller than the outer diameters of the first driving gear and the second driven gear, so that there is a rotation speed difference between the cylinder and the rotating rod.

[0012] Preferably, a vibrator is fixedly installed on the bottom of the inner wall of the sand hopper, a sand suction pump is provided on the left side of the outside of the shell, and a sand suction pipe is fixedly connected to the output end of the sand suction pump, and the sand suction pipe extends through one side of the shell to the bottom of the sand hopper, and a water inlet pipe for injecting sewage is provided on the left side of the outside of the shell, and the water inlet pipe extends through one side of the shell to the inside of the sand hopper, and the dust and sand at the bottom of the sand hopper are driven to vibrate and float slightly through the vibrator, so as to facilitate the auxiliary sand suction pump to extract sand through the sand suction pipe.

[0013] Preferably, the water inlet pipe is arranged tangent to the inner wall of the sand bin, and sewage is injected through the water inlet pipe. Since the water inlet pipe is arranged tangent to the inner wall of the sand bin, the incoming water can flow in a spiral shape.

[0014] Preferably, a water pump is provided inside the shell at a position on the left side above the sand hopper, and the output end of the water pump is fixedly connected to a drain pipe. The drain pipe passes through the right side of the inner wall of the shell and extends to the outside of the shell. The water separated from the sand is extracted by arranging a water pump above the sand hopper and discharged from the drain pipe.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a pump-lifting sand cyclone sedimentation tank, which has the following beneficial effects:

[0017] 1. A pump-lifted sand cyclone sedimentation tank, by starting a motor to drive the first driving gear and the second driving gear to rotate, respectively drive the first stirring blade and the second stirring blade on the cylinder and the rotating rod to rotate through the meshing first driven gear and the second driven gear, so that the water body forms a vortex, the sand particles flow in a spiral shape, and the separation of organic matter and sand particles is promoted. Due to the different centrifugal forces, the sand particles with a relatively large density are thrown to the pool wall and sink into the sand hopper under the action of gravity; while the lighter organic matter is separated from the sand in the middle part of the shell, and the rotation speed is adjusted to achieve the best sedimentation. Sand effect, and due to the meshing relationship between the first driving gear and the second driven gear and the second driving gear and the first driving gear, there is a speed difference between the first stirring blade and the second stirring blade on the cylinder and the rotating rod. When the first stirring blade and the second stirring blade are staggered due to the rotation speed, a large shear force will be generated to facilitate the chopping of the fiber material, so as to avoid the fibrous object and the serrated blade rotating in the same direction due to the inertia of the flowing water vortex. The rotation speed of the serrated blade and the fibrous object will gradually approach, resulting in insufficient shear force generated subsequently, and it is not easy to chop the fibrous object.

[0018] 2. This pump-lifted sand cyclone settling tank injects sewage through an inlet pipe. Since the inlet pipe is tangent to the inner wall of the sand hopper, the incoming water can flow in a spiral shape. The vibrator drives the dust and sand at the bottom of the sand hopper to vibrate and float slightly, so as to assist the sand pump to extract sand through the sand extraction pipe. A water pump is set above the sand hopper to extract the water separated from the sand and discharge it from the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the rotating mechanism of the utility model.

[0023] In the figure: 1. shell; 11. sand bucket; 12. sand pump; 13. sand pumping pipe; 14. vibrator; 15. water inlet pipe; 16. water pump; 17. drain pipe; 2. rotating mechanism; 21. support frame; 22. cylinder; 221. first stirring blade; 23. rotating rod; 231. second stirring blade; 24. supporting plate; 25. first driven gear; 251. first driving gear; 26. second driven gear; 261. second driving gear; 27. motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] like Figure 1-3As shown, the utility model provides a pump-lifted sand cyclone sand settling tank, comprising a shell 1, a sand bucket 11 is provided at the bottom of the shell 1, a rotating mechanism 2 is arranged at the top of the shell 1, and the rotating mechanism 2 comprises a support frame 21, the support frame 21 is fixedly connected to the top of the shell 1, the inner wall of the support frame 21 is rotatably connected to a cylinder 22 through a bearing, and one end of the bottom of the cylinder 22 extends to a position near the top of the inside of the sand bucket 11, the inner wall of the cylinder 22 is rotatably connected to a rotating rod 23 through a bearing, and the two ends of the rotating rod 23 extend to the outside of the two ends of the cylinder 22 respectively, the outer wall of the cylinder 22 near the bottom end is respectively fixedly connected with a first stirring blade 221, the outer wall of the rotating rod 23 near the bottom end is respectively fixedly connected with a second stirring blade 231, the outer walls of the first stirring blade 221 and the second stirring blade 231 are respectively provided with sawtooth blades for cutting fiber materials, the outer wall of the cylinder 22 near the top is fixedly sleeved with a first driven gear 25, the outer wall of the rotating rod 23 near the top is fixedly sleeved with a A second driven gear 26 is provided, a support plate 24 is fixedly connected to the right side of the top of the support frame 21, a motor 27 is fixedly connected to the lower part of the top of the support plate 24, a rotating shaft at the output end of the motor 27 is fixedly connected to the first driving gear 251, and is meshed with the first driving gear 251 and the first driven gear 25, a second driving gear 261 is fixedly sleeved on the outer wall of the rotating shaft at the output end of the motor 27 at a position above the first driving gear 251, and the second driving gear 261 is meshed with the second driven gear 26, the first driving gear 251 and the second driving gear 261 are driven to rotate by starting the motor 27, and the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23 are driven to rotate by the meshed first driven gear 25 and the second driven gear 26, so that a vortex is formed in the water body, and the sand particles flow in a spiral shape, so as to promote the separation of organic matter and sand particles, and due to the different centrifugal forces, the sand particles with a relatively large density are thrown to the pool wall and sink into the sand hopper under the action of gravity;The lighter organic matter is separated from the sand in the middle part of the shell 1. The rotation speed is adjusted to achieve the best sand settling effect. Due to the meshing relationship between the first driving gear 251 and the second driven gear 26 and the second driving gear 261 and the first driving gear 251, there is a speed difference between the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23. When the first stirring blade 221 and the second stirring blade 231 are staggered due to the rotation speed, a large shear force is generated to facilitate the shredding of the fiber material, so as to avoid the fiber material and the sawtooth blade from being in the same direction due to the inertia of the water vortex. When the first stirring blade 221 rotates in the same direction, the rotation speed of the serrated blade and the fibrous object will gradually approach each other, resulting in insufficient shear force generated later, and it is not easy to chop the fibrous object. The serrated blades on the first stirring blade 221 and the second stirring blade 231 are staggered to prevent the serrated blades from colliding. The first driving gear 251 has the same outer diameter as the second driven gear 26, and the second driving gear 261 has the same outer diameter as the first driving gear 251. The outer diameters of the second driving gear 261 and the first driving gear 251 are smaller than the outer diameters of the first driving gear 251 and the second driven gear 26, so that there is a speed difference between the cylinder 22 and the rotating rod 23. ;

[0027] In this embodiment, the motor 27 is started to drive the first driving gear 251 and the second driving gear 261 to rotate, and the first driven gear 25 and the second driven gear 26 are respectively driven to rotate the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23 through the meshing, so that the water body forms a vortex, and the sand particles flow in a spiral shape, which promotes the separation of organic matter and sand particles. Due to the different centrifugal forces, the sand particles with a relatively large density are thrown to the pool wall and sink into the sand hopper under the action of gravity; while the lighter organic matter is separated from the sand in the middle part of the shell 1. By adjusting the rotation speed, the best sand settling effect is achieved, and the sand particles are separated from the sand particles by the rotation speed. Due to the meshing relationship between the first driving gear 251 and the second driven gear 26 and the second driving gear 261 and the first driving gear 251, there is a speed difference between the rotation of the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23. When the first stirring blade 221 and the second stirring blade 231 are staggered due to the rotation speed, a large shear force will be generated to facilitate the chopping of the fibrous material, so as to avoid the fibrous object and the serrated blade from rotating in the same direction due to the inertia of the flowing water vortex. The rotation speeds of the serrated blade and the fibrous object will gradually approach each other, resulting in insufficient shear force generated subsequently, making it difficult to chop the fibrous object.

[0028] Example 2

[0029] like Figure 1-3As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a vibrator 14 is fixedly installed at the bottom of the inner wall of the sand hopper 11, a sand pump 12 is arranged on the left side of the outside of the shell 1, and a sand pumping pipe 13 is fixedly connected to the output end of the sand pump 12, and the sand pumping pipe 13 passes through one side of the shell 1 and extends to the bottom of the sand hopper 11, and a water inlet pipe 15 for injecting sewage is arranged on the left side of the outside of the shell 1, and the water inlet pipe 15 passes through one side of the shell 1 and extends to the inside of the sand hopper 11, and the dust and sand at the bottom of the sand hopper 11 are driven by the vibrator 14 to vibrate and float slightly, so as to The sand pump 12 is assisted to extract sand through the sand extraction pipe 13. The water inlet pipe 15 is tangent to the inner wall of the sand hopper 11, and sewage is injected through the water inlet pipe 15. Since the water inlet pipe 15 is tangent to the inner wall of the sand hopper 11, the incoming water can flow in a spiral shape. A water pump 16 is arranged on the left side above the sand hopper 11 inside the shell 1. The output end of the water pump 16 is fixedly connected to a drain pipe 17. The drain pipe 17 passes through the right side of the inner wall of the shell 1 and extends to the outside of the shell 1. The water separated from the sand is extracted by arranging the water pump 16 above the sand hopper 11 and discharged from the drain pipe 17.

[0030] In this embodiment, sewage is injected through the water inlet pipe 15. Since the water inlet pipe 15 is arranged tangent to the inner wall of the sand hopper 11, the incoming water can flow in a spiral shape. The vibrator 14 drives the dust and sand at the bottom of the sand hopper 11 to vibrate and float slightly, so as to assist the sand pump 12 to extract sand through the sand extraction pipe 13. The water separated from the sand is extracted by arranging a water pump 16 above the sand hopper 11 and discharged from the drain pipe 17.

[0031] The following is a detailed description of the working principle of this pump-lift sand cyclone sand settling tank.

[0032] like Figure 1-3As shown, when in use, sewage is injected through the water inlet pipe 15. Since the water inlet pipe 15 and the inner wall of the sand bucket 11 are tangently arranged, the water body can flow in a spiral shape. By starting the motor 27, the first driving gear 251 and the second driving gear 261 are driven to rotate, and the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23 are driven to rotate through the meshing first driven gear 25 and the second driven gear 26, respectively, so that the water body forms a vortex, and the sand particles flow in a spiral shape, which promotes the separation of organic matter and sand particles. Due to the different centrifugal forces, the sand particles with a relatively large density are thrown to the pool wall and sink into the sand bucket under the action of gravity; while the lighter organic matter is separated from the sand in the middle part of the shell 1. By adjusting the rotation speed, the best sand settling effect can be achieved. 6 and the meshing relationship between the second driving gear 261 and the first driving gear 251, so that there is a speed difference between the first stirring blade 221 and the second stirring blade 231 on the cylinder 22 and the rotating rod 23. When the first stirring blade 221 and the second stirring blade 231 are staggered due to the rotation speed, a large shear force will be generated to facilitate the shredding of the fiber material, so as to avoid the fibrous object and the sawtooth blade rotating in the same direction due to the inertia of the flowing water vortex. The rotation speed of the sawtooth blade and the fibrous object will gradually approach, resulting in insufficient shear force generated subsequently, and it is not easy to shred the fibrous object. The dust and sand at the bottom of the sand hopper 11 are driven by the vibrator 14 to vibrate and float slightly, so as to facilitate the auxiliary sand pump 12 to extract sand through the sand extraction pipe 13, and the water separated from the sand is extracted by arranging a water pump 16 above the sand hopper 11 to be discharged from the drain pipe 17.

Claims

1. A pump-type cyclone grit chamber, comprising a housing (1), characterized in that: A sand hopper (11) is provided at the bottom of the shell (1), a rotating mechanism (2) is provided at the top of the shell (1), and the rotating mechanism (2) includes a support frame (21), the support frame (21) is fixedly connected to the top of the shell (1), the inner wall of the support frame (21) is rotatably connected to a cylinder (22) via a bearing, and one end of the bottom of the cylinder (22) extends to a position inside the sand hopper (11) near the top; The inner wall of the cylinder (22) is rotatably connected to a rotating rod (23) via a bearing, and the two ends of the rotating rod (23) extend to the outside of the two ends of the cylinder (22), respectively; the outer wall of the cylinder (22) is respectively fixedly connected to the two sides of one end close to the bottom with a first stirring blade (221), and the outer wall of the rotating rod (23) is respectively fixedly connected to the two sides of one end close to the bottom with a second stirring blade (231), and the outer walls of the first stirring blade (221) and the second stirring blade (231) are respectively provided with sawtooth blades for cutting fiber materials, and the outer wall of the cylinder (22) is fixedly sleeved with a first driven gear (25) at a position close to the top, and the outer wall of the rotating rod (23) is fixedly sleeved with a second driven gear (26) at a position close to the top; A support plate (24) is fixedly connected to the right side of the top of the support frame (21); a motor (27) is fixedly connected below the top of the support plate (24); a rotating shaft at the output end of the motor (27) is fixedly connected to a first driving gear (251), and the first driving gear (251) is meshedly connected to the first driven gear (25); a second driving gear (261) is fixedly sleeved on the outer wall of the rotating shaft at the output end of the motor (27) at a position above the first driving gear (251), and the second driving gear (261) is meshedly connected to the second driven gear (26).

2. A pump-type cyclone sand settling tank according to claim 1, characterized in that: The serrated blades on the first stirring blade (221) and the second stirring blade (231) are arranged in a staggered manner.

3. The pump-type cyclone sand settling tank according to claim 1, characterized in that: The first driving gear (251) and the second driven gear (26) have the same outer diameter, the second driving gear (261) and the first driving gear (251) have the same outer diameter, and the outer diameters of the second driving gear (261) and the first driving gear (251) are smaller than the outer diameters of the first driving gear (251) and the second driven gear (26).

4. The pump-type cyclone grit chamber according to claim 1, characterized in that: A vibrator (14) is fixedly mounted on the bottom of the inner wall of the sand hopper (11); a sand pump (12) is arranged on the left side of the exterior of the shell (1); a sand pumping pipe (13) is fixedly connected to the output end of the sand pump (12); the sand pumping pipe (13) passes through one side of the shell (1) and extends to the bottom of the interior of the sand hopper (11); a water inlet pipe (15) for injecting sewage is arranged on the left side of the exterior of the shell (1); the water inlet pipe (15) passes through one side of the shell (1) and extends to the interior of the sand hopper (11).

5. A pump-type cyclone sand settling tank according to claim 4, characterized in that: The water inlet pipe (15) is arranged tangent to the inner wall of the sand bin (11).

6. The pump-type cyclone sand settling tank according to claim 1, characterized in that: A water pump (16) is arranged inside the shell (1) at a position above the sand bucket (11) on the left side, and the output end of the water pump (16) is fixedly connected to a drainage pipe (17), and the drainage pipe (17) passes through the right side of the inner wall of the shell (1) and extends to the outside of the shell (1).

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